ctl.c revision 275009
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 275009 2014-11-25 06:11:05Z mav $"); 46 47#include <sys/param.h> 48#include <sys/systm.h> 49#include <sys/ctype.h> 50#include <sys/kernel.h> 51#include <sys/types.h> 52#include <sys/kthread.h> 53#include <sys/bio.h> 54#include <sys/fcntl.h> 55#include <sys/lock.h> 56#include <sys/module.h> 57#include <sys/mutex.h> 58#include <sys/condvar.h> 59#include <sys/malloc.h> 60#include <sys/conf.h> 61#include <sys/ioccom.h> 62#include <sys/queue.h> 63#include <sys/sbuf.h> 64#include <sys/smp.h> 65#include <sys/endian.h> 66#include <sys/sysctl.h> 67#include <vm/uma.h> 68 69#include <cam/cam.h> 70#include <cam/scsi/scsi_all.h> 71#include <cam/scsi/scsi_da.h> 72#include <cam/ctl/ctl_io.h> 73#include <cam/ctl/ctl.h> 74#include <cam/ctl/ctl_frontend.h> 75#include <cam/ctl/ctl_frontend_internal.h> 76#include <cam/ctl/ctl_util.h> 77#include <cam/ctl/ctl_backend.h> 78#include <cam/ctl/ctl_ioctl.h> 79#include <cam/ctl/ctl_ha.h> 80#include <cam/ctl/ctl_private.h> 81#include <cam/ctl/ctl_debug.h> 82#include <cam/ctl/ctl_scsi_all.h> 83#include <cam/ctl/ctl_error.h> 84 85struct ctl_softc *control_softc = NULL; 86 87/* 88 * Size and alignment macros needed for Copan-specific HA hardware. These 89 * can go away when the HA code is re-written, and uses busdma for any 90 * hardware. 91 */ 92#define CTL_ALIGN_8B(target, source, type) \ 93 if (((uint32_t)source & 0x7) != 0) \ 94 target = (type)(source + (0x8 - ((uint32_t)source & 0x7)));\ 95 else \ 96 target = (type)source; 97 98#define CTL_SIZE_8B(target, size) \ 99 if ((size & 0x7) != 0) \ 100 target = size + (0x8 - (size & 0x7)); \ 101 else \ 102 target = size; 103 104#define CTL_ALIGN_8B_MARGIN 16 105 106/* 107 * Template mode pages. 108 */ 109 110/* 111 * Note that these are default values only. The actual values will be 112 * filled in when the user does a mode sense. 113 */ 114static struct copan_debugconf_subpage debugconf_page_default = { 115 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 116 DBGCNF_SUBPAGE_CODE, /* subpage */ 117 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 118 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 119 DBGCNF_VERSION, /* page_version */ 120 {CTL_TIME_IO_DEFAULT_SECS>>8, 121 CTL_TIME_IO_DEFAULT_SECS>>0}, /* ctl_time_io_secs */ 122}; 123 124static struct copan_debugconf_subpage debugconf_page_changeable = { 125 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 126 DBGCNF_SUBPAGE_CODE, /* subpage */ 127 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 128 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 129 0, /* page_version */ 130 {0xff,0xff}, /* ctl_time_io_secs */ 131}; 132 133static struct scsi_da_rw_recovery_page rw_er_page_default = { 134 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 135 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 136 /*byte3*/SMS_RWER_AWRE|SMS_RWER_ARRE, 137 /*read_retry_count*/0, 138 /*correction_span*/0, 139 /*head_offset_count*/0, 140 /*data_strobe_offset_cnt*/0, 141 /*byte8*/SMS_RWER_LBPERE, 142 /*write_retry_count*/0, 143 /*reserved2*/0, 144 /*recovery_time_limit*/{0, 0}, 145}; 146 147static struct scsi_da_rw_recovery_page rw_er_page_changeable = { 148 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 149 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 150 /*byte3*/0, 151 /*read_retry_count*/0, 152 /*correction_span*/0, 153 /*head_offset_count*/0, 154 /*data_strobe_offset_cnt*/0, 155 /*byte8*/0, 156 /*write_retry_count*/0, 157 /*reserved2*/0, 158 /*recovery_time_limit*/{0, 0}, 159}; 160 161static struct scsi_format_page format_page_default = { 162 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 163 /*page_length*/sizeof(struct scsi_format_page) - 2, 164 /*tracks_per_zone*/ {0, 0}, 165 /*alt_sectors_per_zone*/ {0, 0}, 166 /*alt_tracks_per_zone*/ {0, 0}, 167 /*alt_tracks_per_lun*/ {0, 0}, 168 /*sectors_per_track*/ {(CTL_DEFAULT_SECTORS_PER_TRACK >> 8) & 0xff, 169 CTL_DEFAULT_SECTORS_PER_TRACK & 0xff}, 170 /*bytes_per_sector*/ {0, 0}, 171 /*interleave*/ {0, 0}, 172 /*track_skew*/ {0, 0}, 173 /*cylinder_skew*/ {0, 0}, 174 /*flags*/ SFP_HSEC, 175 /*reserved*/ {0, 0, 0} 176}; 177 178static struct scsi_format_page format_page_changeable = { 179 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 180 /*page_length*/sizeof(struct scsi_format_page) - 2, 181 /*tracks_per_zone*/ {0, 0}, 182 /*alt_sectors_per_zone*/ {0, 0}, 183 /*alt_tracks_per_zone*/ {0, 0}, 184 /*alt_tracks_per_lun*/ {0, 0}, 185 /*sectors_per_track*/ {0, 0}, 186 /*bytes_per_sector*/ {0, 0}, 187 /*interleave*/ {0, 0}, 188 /*track_skew*/ {0, 0}, 189 /*cylinder_skew*/ {0, 0}, 190 /*flags*/ 0, 191 /*reserved*/ {0, 0, 0} 192}; 193 194static struct scsi_rigid_disk_page rigid_disk_page_default = { 195 /*page_code*/SMS_RIGID_DISK_PAGE, 196 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 197 /*cylinders*/ {0, 0, 0}, 198 /*heads*/ CTL_DEFAULT_HEADS, 199 /*start_write_precomp*/ {0, 0, 0}, 200 /*start_reduced_current*/ {0, 0, 0}, 201 /*step_rate*/ {0, 0}, 202 /*landing_zone_cylinder*/ {0, 0, 0}, 203 /*rpl*/ SRDP_RPL_DISABLED, 204 /*rotational_offset*/ 0, 205 /*reserved1*/ 0, 206 /*rotation_rate*/ {(CTL_DEFAULT_ROTATION_RATE >> 8) & 0xff, 207 CTL_DEFAULT_ROTATION_RATE & 0xff}, 208 /*reserved2*/ {0, 0} 209}; 210 211static struct scsi_rigid_disk_page rigid_disk_page_changeable = { 212 /*page_code*/SMS_RIGID_DISK_PAGE, 213 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 214 /*cylinders*/ {0, 0, 0}, 215 /*heads*/ 0, 216 /*start_write_precomp*/ {0, 0, 0}, 217 /*start_reduced_current*/ {0, 0, 0}, 218 /*step_rate*/ {0, 0}, 219 /*landing_zone_cylinder*/ {0, 0, 0}, 220 /*rpl*/ 0, 221 /*rotational_offset*/ 0, 222 /*reserved1*/ 0, 223 /*rotation_rate*/ {0, 0}, 224 /*reserved2*/ {0, 0} 225}; 226 227static struct scsi_caching_page caching_page_default = { 228 /*page_code*/SMS_CACHING_PAGE, 229 /*page_length*/sizeof(struct scsi_caching_page) - 2, 230 /*flags1*/ SCP_DISC | SCP_WCE, 231 /*ret_priority*/ 0, 232 /*disable_pf_transfer_len*/ {0xff, 0xff}, 233 /*min_prefetch*/ {0, 0}, 234 /*max_prefetch*/ {0xff, 0xff}, 235 /*max_pf_ceiling*/ {0xff, 0xff}, 236 /*flags2*/ 0, 237 /*cache_segments*/ 0, 238 /*cache_seg_size*/ {0, 0}, 239 /*reserved*/ 0, 240 /*non_cache_seg_size*/ {0, 0, 0} 241}; 242 243static struct scsi_caching_page caching_page_changeable = { 244 /*page_code*/SMS_CACHING_PAGE, 245 /*page_length*/sizeof(struct scsi_caching_page) - 2, 246 /*flags1*/ SCP_WCE | SCP_RCD, 247 /*ret_priority*/ 0, 248 /*disable_pf_transfer_len*/ {0, 0}, 249 /*min_prefetch*/ {0, 0}, 250 /*max_prefetch*/ {0, 0}, 251 /*max_pf_ceiling*/ {0, 0}, 252 /*flags2*/ 0, 253 /*cache_segments*/ 0, 254 /*cache_seg_size*/ {0, 0}, 255 /*reserved*/ 0, 256 /*non_cache_seg_size*/ {0, 0, 0} 257}; 258 259static struct scsi_control_page control_page_default = { 260 /*page_code*/SMS_CONTROL_MODE_PAGE, 261 /*page_length*/sizeof(struct scsi_control_page) - 2, 262 /*rlec*/0, 263 /*queue_flags*/SCP_QUEUE_ALG_RESTRICTED, 264 /*eca_and_aen*/0, 265 /*flags4*/SCP_TAS, 266 /*aen_holdoff_period*/{0, 0}, 267 /*busy_timeout_period*/{0, 0}, 268 /*extended_selftest_completion_time*/{0, 0} 269}; 270 271static struct scsi_control_page control_page_changeable = { 272 /*page_code*/SMS_CONTROL_MODE_PAGE, 273 /*page_length*/sizeof(struct scsi_control_page) - 2, 274 /*rlec*/SCP_DSENSE, 275 /*queue_flags*/SCP_QUEUE_ALG_MASK, 276 /*eca_and_aen*/SCP_SWP, 277 /*flags4*/0, 278 /*aen_holdoff_period*/{0, 0}, 279 /*busy_timeout_period*/{0, 0}, 280 /*extended_selftest_completion_time*/{0, 0} 281}; 282 283static struct scsi_info_exceptions_page ie_page_default = { 284 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 285 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 286 /*info_flags*/SIEP_FLAGS_DEXCPT, 287 /*mrie*/0, 288 /*interval_timer*/{0, 0, 0, 0}, 289 /*report_count*/{0, 0, 0, 0} 290}; 291 292static struct scsi_info_exceptions_page ie_page_changeable = { 293 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 294 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 295 /*info_flags*/0, 296 /*mrie*/0, 297 /*interval_timer*/{0, 0, 0, 0}, 298 /*report_count*/{0, 0, 0, 0} 299}; 300 301#define CTL_LBPM_LEN (sizeof(struct ctl_logical_block_provisioning_page) - 4) 302 303static struct ctl_logical_block_provisioning_page lbp_page_default = {{ 304 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 305 /*subpage_code*/0x02, 306 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 307 /*flags*/0, 308 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 309 /*descr*/{}}, 310 {{/*flags*/0, 311 /*resource*/0x01, 312 /*reserved*/{0, 0}, 313 /*count*/{0, 0, 0, 0}}, 314 {/*flags*/0, 315 /*resource*/0x02, 316 /*reserved*/{0, 0}, 317 /*count*/{0, 0, 0, 0}}, 318 {/*flags*/0, 319 /*resource*/0xf1, 320 /*reserved*/{0, 0}, 321 /*count*/{0, 0, 0, 0}}, 322 {/*flags*/0, 323 /*resource*/0xf2, 324 /*reserved*/{0, 0}, 325 /*count*/{0, 0, 0, 0}} 326 } 327}; 328 329static struct ctl_logical_block_provisioning_page lbp_page_changeable = {{ 330 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 331 /*subpage_code*/0x02, 332 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 333 /*flags*/0, 334 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 335 /*descr*/{}}, 336 {{/*flags*/0, 337 /*resource*/0, 338 /*reserved*/{0, 0}, 339 /*count*/{0, 0, 0, 0}}, 340 {/*flags*/0, 341 /*resource*/0, 342 /*reserved*/{0, 0}, 343 /*count*/{0, 0, 0, 0}}, 344 {/*flags*/0, 345 /*resource*/0, 346 /*reserved*/{0, 0}, 347 /*count*/{0, 0, 0, 0}}, 348 {/*flags*/0, 349 /*resource*/0, 350 /*reserved*/{0, 0}, 351 /*count*/{0, 0, 0, 0}} 352 } 353}; 354 355/* 356 * XXX KDM move these into the softc. 357 */ 358static int rcv_sync_msg; 359static int persis_offset; 360static uint8_t ctl_pause_rtr; 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_nowait(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_nowait( 894 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_nowait( 923 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_ha_state_sysctl(SYSCTL_HANDLER_ARGS) 974{ 975 struct ctl_softc *softc = (struct ctl_softc *)arg1; 976 struct ctl_lun *lun; 977 int error, value, i; 978 979 if (softc->flags & CTL_FLAG_ACTIVE_SHELF) 980 value = 0; 981 else 982 value = 1; 983 984 error = sysctl_handle_int(oidp, &value, 0, req); 985 if ((error != 0) || (req->newptr == NULL)) 986 return (error); 987 988 mtx_lock(&softc->ctl_lock); 989 if (value == 0) 990 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 991 else 992 softc->flags &= ~CTL_FLAG_ACTIVE_SHELF; 993 STAILQ_FOREACH(lun, &softc->lun_list, links) { 994 mtx_lock(&lun->lun_lock); 995 for (i = 0; i < CTL_MAX_INITIATORS; i++) 996 lun->pending_ua[i] |= CTL_UA_ASYM_ACC_CHANGE; 997 mtx_unlock(&lun->lun_lock); 998 } 999 mtx_unlock(&softc->ctl_lock); 1000 return (0); 1001} 1002 1003static int 1004ctl_init(void) 1005{ 1006 struct ctl_softc *softc; 1007 void *other_pool; 1008 struct ctl_port *port; 1009 int i, error, retval; 1010 //int isc_retval; 1011 1012 retval = 0; 1013 ctl_pause_rtr = 0; 1014 rcv_sync_msg = 0; 1015 1016 control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 1017 M_WAITOK | M_ZERO); 1018 softc = control_softc; 1019 1020 softc->dev = make_dev(&ctl_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, 1021 "cam/ctl"); 1022 1023 softc->dev->si_drv1 = softc; 1024 1025 /* 1026 * By default, return a "bad LUN" peripheral qualifier for unknown 1027 * LUNs. The user can override this default using the tunable or 1028 * sysctl. See the comment in ctl_inquiry_std() for more details. 1029 */ 1030 softc->inquiry_pq_no_lun = 1; 1031 TUNABLE_INT_FETCH("kern.cam.ctl.inquiry_pq_no_lun", 1032 &softc->inquiry_pq_no_lun); 1033 sysctl_ctx_init(&softc->sysctl_ctx); 1034 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1035 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 1036 CTLFLAG_RD, 0, "CAM Target Layer"); 1037 1038 if (softc->sysctl_tree == NULL) { 1039 printf("%s: unable to allocate sysctl tree\n", __func__); 1040 destroy_dev(softc->dev); 1041 free(control_softc, M_DEVBUF); 1042 control_softc = NULL; 1043 return (ENOMEM); 1044 } 1045 1046 SYSCTL_ADD_INT(&softc->sysctl_ctx, 1047 SYSCTL_CHILDREN(softc->sysctl_tree), OID_AUTO, 1048 "inquiry_pq_no_lun", CTLFLAG_RW, 1049 &softc->inquiry_pq_no_lun, 0, 1050 "Report no lun possible for invalid LUNs"); 1051 1052 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 1053 softc->io_zone = uma_zcreate("CTL IO", sizeof(union ctl_io), 1054 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); 1055 softc->open_count = 0; 1056 1057 /* 1058 * Default to actually sending a SYNCHRONIZE CACHE command down to 1059 * the drive. 1060 */ 1061 softc->flags = CTL_FLAG_REAL_SYNC; 1062 1063 /* 1064 * In Copan's HA scheme, the "master" and "slave" roles are 1065 * figured out through the slot the controller is in. Although it 1066 * is an active/active system, someone has to be in charge. 1067 */ 1068 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1069 OID_AUTO, "ha_id", CTLFLAG_RDTUN, &softc->ha_id, 0, 1070 "HA head ID (0 - no HA)"); 1071 if (softc->ha_id == 0) { 1072 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1073 softc->is_single = 1; 1074 softc->port_offset = 0; 1075 } else 1076 softc->port_offset = (softc->ha_id - 1) * CTL_MAX_PORTS; 1077 persis_offset = softc->port_offset * CTL_MAX_INIT_PER_PORT; 1078 1079 /* 1080 * XXX KDM need to figure out where we want to get our target ID 1081 * and WWID. Is it different on each port? 1082 */ 1083 softc->target.id = 0; 1084 softc->target.wwid[0] = 0x12345678; 1085 softc->target.wwid[1] = 0x87654321; 1086 STAILQ_INIT(&softc->lun_list); 1087 STAILQ_INIT(&softc->pending_lun_queue); 1088 STAILQ_INIT(&softc->fe_list); 1089 STAILQ_INIT(&softc->port_list); 1090 STAILQ_INIT(&softc->be_list); 1091 ctl_tpc_init(softc); 1092 1093 if (ctl_pool_create(softc, "othersc", CTL_POOL_ENTRIES_OTHER_SC, 1094 &other_pool) != 0) 1095 { 1096 printf("ctl: can't allocate %d entry other SC pool, " 1097 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1098 return (ENOMEM); 1099 } 1100 softc->othersc_pool = other_pool; 1101 1102 if (worker_threads <= 0) 1103 worker_threads = max(1, mp_ncpus / 4); 1104 if (worker_threads > CTL_MAX_THREADS) 1105 worker_threads = CTL_MAX_THREADS; 1106 1107 for (i = 0; i < worker_threads; i++) { 1108 struct ctl_thread *thr = &softc->threads[i]; 1109 1110 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1111 thr->ctl_softc = softc; 1112 STAILQ_INIT(&thr->incoming_queue); 1113 STAILQ_INIT(&thr->rtr_queue); 1114 STAILQ_INIT(&thr->done_queue); 1115 STAILQ_INIT(&thr->isc_queue); 1116 1117 error = kproc_kthread_add(ctl_work_thread, thr, 1118 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1119 if (error != 0) { 1120 printf("error creating CTL work thread!\n"); 1121 ctl_pool_free(other_pool); 1122 return (error); 1123 } 1124 } 1125 error = kproc_kthread_add(ctl_lun_thread, softc, 1126 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1127 if (error != 0) { 1128 printf("error creating CTL lun thread!\n"); 1129 ctl_pool_free(other_pool); 1130 return (error); 1131 } 1132 error = kproc_kthread_add(ctl_thresh_thread, softc, 1133 &softc->ctl_proc, NULL, 0, 0, "ctl", "thresh"); 1134 if (error != 0) { 1135 printf("error creating CTL threshold thread!\n"); 1136 ctl_pool_free(other_pool); 1137 return (error); 1138 } 1139 if (bootverbose) 1140 printf("ctl: CAM Target Layer loaded\n"); 1141 1142 /* 1143 * Initialize the ioctl front end. 1144 */ 1145 ctl_frontend_register(&ioctl_frontend); 1146 port = &softc->ioctl_info.port; 1147 port->frontend = &ioctl_frontend; 1148 sprintf(softc->ioctl_info.port_name, "ioctl"); 1149 port->port_type = CTL_PORT_IOCTL; 1150 port->num_requested_ctl_io = 100; 1151 port->port_name = softc->ioctl_info.port_name; 1152 port->port_online = ctl_ioctl_online; 1153 port->port_offline = ctl_ioctl_offline; 1154 port->onoff_arg = &softc->ioctl_info; 1155 port->lun_enable = ctl_ioctl_lun_enable; 1156 port->lun_disable = ctl_ioctl_lun_disable; 1157 port->targ_lun_arg = &softc->ioctl_info; 1158 port->fe_datamove = ctl_ioctl_datamove; 1159 port->fe_done = ctl_ioctl_done; 1160 port->max_targets = 15; 1161 port->max_target_id = 15; 1162 1163 if (ctl_port_register(&softc->ioctl_info.port) != 0) { 1164 printf("ctl: ioctl front end registration failed, will " 1165 "continue anyway\n"); 1166 } 1167 1168 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1169 OID_AUTO, "ha_state", CTLTYPE_INT | CTLFLAG_RWTUN, 1170 softc, 0, ctl_ha_state_sysctl, "I", "HA state for this head"); 1171 1172#ifdef CTL_IO_DELAY 1173 if (sizeof(struct callout) > CTL_TIMER_BYTES) { 1174 printf("sizeof(struct callout) %zd > CTL_TIMER_BYTES %zd\n", 1175 sizeof(struct callout), CTL_TIMER_BYTES); 1176 return (EINVAL); 1177 } 1178#endif /* CTL_IO_DELAY */ 1179 1180 return (0); 1181} 1182 1183void 1184ctl_shutdown(void) 1185{ 1186 struct ctl_softc *softc; 1187 struct ctl_lun *lun, *next_lun; 1188 1189 softc = (struct ctl_softc *)control_softc; 1190 1191 if (ctl_port_deregister(&softc->ioctl_info.port) != 0) 1192 printf("ctl: ioctl front end deregistration failed\n"); 1193 1194 mtx_lock(&softc->ctl_lock); 1195 1196 /* 1197 * Free up each LUN. 1198 */ 1199 for (lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; lun = next_lun){ 1200 next_lun = STAILQ_NEXT(lun, links); 1201 ctl_free_lun(lun); 1202 } 1203 1204 mtx_unlock(&softc->ctl_lock); 1205 1206 ctl_frontend_deregister(&ioctl_frontend); 1207 1208#if 0 1209 ctl_shutdown_thread(softc->work_thread); 1210 mtx_destroy(&softc->queue_lock); 1211#endif 1212 1213 ctl_tpc_shutdown(softc); 1214 uma_zdestroy(softc->io_zone); 1215 mtx_destroy(&softc->ctl_lock); 1216 1217 destroy_dev(softc->dev); 1218 1219 sysctl_ctx_free(&softc->sysctl_ctx); 1220 1221 free(control_softc, M_DEVBUF); 1222 control_softc = NULL; 1223 1224 if (bootverbose) 1225 printf("ctl: CAM Target Layer unloaded\n"); 1226} 1227 1228static int 1229ctl_module_event_handler(module_t mod, int what, void *arg) 1230{ 1231 1232 switch (what) { 1233 case MOD_LOAD: 1234 return (ctl_init()); 1235 case MOD_UNLOAD: 1236 return (EBUSY); 1237 default: 1238 return (EOPNOTSUPP); 1239 } 1240} 1241 1242/* 1243 * XXX KDM should we do some access checks here? Bump a reference count to 1244 * prevent a CTL module from being unloaded while someone has it open? 1245 */ 1246static int 1247ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1248{ 1249 return (0); 1250} 1251 1252static int 1253ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1254{ 1255 return (0); 1256} 1257 1258int 1259ctl_port_enable(ctl_port_type port_type) 1260{ 1261 struct ctl_softc *softc = control_softc; 1262 struct ctl_port *port; 1263 1264 if (softc->is_single == 0) { 1265 union ctl_ha_msg msg_info; 1266 int isc_retval; 1267 1268#if 0 1269 printf("%s: HA mode, synchronizing frontend enable\n", 1270 __func__); 1271#endif 1272 msg_info.hdr.msg_type = CTL_MSG_SYNC_FE; 1273 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1274 sizeof(msg_info), 1 )) > CTL_HA_STATUS_SUCCESS) { 1275 printf("Sync msg send error retval %d\n", isc_retval); 1276 } 1277 if (!rcv_sync_msg) { 1278 isc_retval=ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 1279 sizeof(msg_info), 1); 1280 } 1281#if 0 1282 printf("CTL:Frontend Enable\n"); 1283 } else { 1284 printf("%s: single mode, skipping frontend synchronization\n", 1285 __func__); 1286#endif 1287 } 1288 1289 STAILQ_FOREACH(port, &softc->port_list, links) { 1290 if (port_type & port->port_type) 1291 { 1292#if 0 1293 printf("port %d\n", port->targ_port); 1294#endif 1295 ctl_port_online(port); 1296 } 1297 } 1298 1299 return (0); 1300} 1301 1302int 1303ctl_port_disable(ctl_port_type port_type) 1304{ 1305 struct ctl_softc *softc; 1306 struct ctl_port *port; 1307 1308 softc = control_softc; 1309 1310 STAILQ_FOREACH(port, &softc->port_list, links) { 1311 if (port_type & port->port_type) 1312 ctl_port_offline(port); 1313 } 1314 1315 return (0); 1316} 1317 1318/* 1319 * Returns 0 for success, 1 for failure. 1320 * Currently the only failure mode is if there aren't enough entries 1321 * allocated. So, in case of a failure, look at num_entries_dropped, 1322 * reallocate and try again. 1323 */ 1324int 1325ctl_port_list(struct ctl_port_entry *entries, int num_entries_alloced, 1326 int *num_entries_filled, int *num_entries_dropped, 1327 ctl_port_type port_type, int no_virtual) 1328{ 1329 struct ctl_softc *softc; 1330 struct ctl_port *port; 1331 int entries_dropped, entries_filled; 1332 int retval; 1333 int i; 1334 1335 softc = control_softc; 1336 1337 retval = 0; 1338 entries_filled = 0; 1339 entries_dropped = 0; 1340 1341 i = 0; 1342 mtx_lock(&softc->ctl_lock); 1343 STAILQ_FOREACH(port, &softc->port_list, links) { 1344 struct ctl_port_entry *entry; 1345 1346 if ((port->port_type & port_type) == 0) 1347 continue; 1348 1349 if ((no_virtual != 0) 1350 && (port->virtual_port != 0)) 1351 continue; 1352 1353 if (entries_filled >= num_entries_alloced) { 1354 entries_dropped++; 1355 continue; 1356 } 1357 entry = &entries[i]; 1358 1359 entry->port_type = port->port_type; 1360 strlcpy(entry->port_name, port->port_name, 1361 sizeof(entry->port_name)); 1362 entry->physical_port = port->physical_port; 1363 entry->virtual_port = port->virtual_port; 1364 entry->wwnn = port->wwnn; 1365 entry->wwpn = port->wwpn; 1366 1367 i++; 1368 entries_filled++; 1369 } 1370 1371 mtx_unlock(&softc->ctl_lock); 1372 1373 if (entries_dropped > 0) 1374 retval = 1; 1375 1376 *num_entries_dropped = entries_dropped; 1377 *num_entries_filled = entries_filled; 1378 1379 return (retval); 1380} 1381 1382static void 1383ctl_ioctl_online(void *arg) 1384{ 1385 struct ctl_ioctl_info *ioctl_info; 1386 1387 ioctl_info = (struct ctl_ioctl_info *)arg; 1388 1389 ioctl_info->flags |= CTL_IOCTL_FLAG_ENABLED; 1390} 1391 1392static void 1393ctl_ioctl_offline(void *arg) 1394{ 1395 struct ctl_ioctl_info *ioctl_info; 1396 1397 ioctl_info = (struct ctl_ioctl_info *)arg; 1398 1399 ioctl_info->flags &= ~CTL_IOCTL_FLAG_ENABLED; 1400} 1401 1402/* 1403 * Remove an initiator by port number and initiator ID. 1404 * Returns 0 for success, -1 for failure. 1405 */ 1406int 1407ctl_remove_initiator(struct ctl_port *port, int iid) 1408{ 1409 struct ctl_softc *softc = control_softc; 1410 1411 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1412 1413 if (iid > CTL_MAX_INIT_PER_PORT) { 1414 printf("%s: initiator ID %u > maximun %u!\n", 1415 __func__, iid, CTL_MAX_INIT_PER_PORT); 1416 return (-1); 1417 } 1418 1419 mtx_lock(&softc->ctl_lock); 1420 port->wwpn_iid[iid].in_use--; 1421 port->wwpn_iid[iid].last_use = time_uptime; 1422 mtx_unlock(&softc->ctl_lock); 1423 1424 return (0); 1425} 1426 1427/* 1428 * Add an initiator to the initiator map. 1429 * Returns iid for success, < 0 for failure. 1430 */ 1431int 1432ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 1433{ 1434 struct ctl_softc *softc = control_softc; 1435 time_t best_time; 1436 int i, best; 1437 1438 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1439 1440 if (iid >= CTL_MAX_INIT_PER_PORT) { 1441 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 1442 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 1443 free(name, M_CTL); 1444 return (-1); 1445 } 1446 1447 mtx_lock(&softc->ctl_lock); 1448 1449 if (iid < 0 && (wwpn != 0 || name != NULL)) { 1450 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1451 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 1452 iid = i; 1453 break; 1454 } 1455 if (name != NULL && port->wwpn_iid[i].name != NULL && 1456 strcmp(name, port->wwpn_iid[i].name) == 0) { 1457 iid = i; 1458 break; 1459 } 1460 } 1461 } 1462 1463 if (iid < 0) { 1464 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1465 if (port->wwpn_iid[i].in_use == 0 && 1466 port->wwpn_iid[i].wwpn == 0 && 1467 port->wwpn_iid[i].name == NULL) { 1468 iid = i; 1469 break; 1470 } 1471 } 1472 } 1473 1474 if (iid < 0) { 1475 best = -1; 1476 best_time = INT32_MAX; 1477 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1478 if (port->wwpn_iid[i].in_use == 0) { 1479 if (port->wwpn_iid[i].last_use < best_time) { 1480 best = i; 1481 best_time = port->wwpn_iid[i].last_use; 1482 } 1483 } 1484 } 1485 iid = best; 1486 } 1487 1488 if (iid < 0) { 1489 mtx_unlock(&softc->ctl_lock); 1490 free(name, M_CTL); 1491 return (-2); 1492 } 1493 1494 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 1495 /* 1496 * This is not an error yet. 1497 */ 1498 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 1499#if 0 1500 printf("%s: port %d iid %u WWPN %#jx arrived" 1501 " again\n", __func__, port->targ_port, 1502 iid, (uintmax_t)wwpn); 1503#endif 1504 goto take; 1505 } 1506 if (name != NULL && port->wwpn_iid[iid].name != NULL && 1507 strcmp(name, port->wwpn_iid[iid].name) == 0) { 1508#if 0 1509 printf("%s: port %d iid %u name '%s' arrived" 1510 " again\n", __func__, port->targ_port, 1511 iid, name); 1512#endif 1513 goto take; 1514 } 1515 1516 /* 1517 * This is an error, but what do we do about it? The 1518 * driver is telling us we have a new WWPN for this 1519 * initiator ID, so we pretty much need to use it. 1520 */ 1521 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 1522 " but WWPN %#jx '%s' is still at that address\n", 1523 __func__, port->targ_port, iid, wwpn, name, 1524 (uintmax_t)port->wwpn_iid[iid].wwpn, 1525 port->wwpn_iid[iid].name); 1526 1527 /* 1528 * XXX KDM clear have_ca and ua_pending on each LUN for 1529 * this initiator. 1530 */ 1531 } 1532take: 1533 free(port->wwpn_iid[iid].name, M_CTL); 1534 port->wwpn_iid[iid].name = name; 1535 port->wwpn_iid[iid].wwpn = wwpn; 1536 port->wwpn_iid[iid].in_use++; 1537 mtx_unlock(&softc->ctl_lock); 1538 1539 return (iid); 1540} 1541 1542static int 1543ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 1544{ 1545 int len; 1546 1547 switch (port->port_type) { 1548 case CTL_PORT_FC: 1549 { 1550 struct scsi_transportid_fcp *id = 1551 (struct scsi_transportid_fcp *)buf; 1552 if (port->wwpn_iid[iid].wwpn == 0) 1553 return (0); 1554 memset(id, 0, sizeof(*id)); 1555 id->format_protocol = SCSI_PROTO_FC; 1556 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 1557 return (sizeof(*id)); 1558 } 1559 case CTL_PORT_ISCSI: 1560 { 1561 struct scsi_transportid_iscsi_port *id = 1562 (struct scsi_transportid_iscsi_port *)buf; 1563 if (port->wwpn_iid[iid].name == NULL) 1564 return (0); 1565 memset(id, 0, 256); 1566 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 1567 SCSI_PROTO_ISCSI; 1568 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 1569 len = roundup2(min(len, 252), 4); 1570 scsi_ulto2b(len, id->additional_length); 1571 return (sizeof(*id) + len); 1572 } 1573 case CTL_PORT_SAS: 1574 { 1575 struct scsi_transportid_sas *id = 1576 (struct scsi_transportid_sas *)buf; 1577 if (port->wwpn_iid[iid].wwpn == 0) 1578 return (0); 1579 memset(id, 0, sizeof(*id)); 1580 id->format_protocol = SCSI_PROTO_SAS; 1581 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 1582 return (sizeof(*id)); 1583 } 1584 default: 1585 { 1586 struct scsi_transportid_spi *id = 1587 (struct scsi_transportid_spi *)buf; 1588 memset(id, 0, sizeof(*id)); 1589 id->format_protocol = SCSI_PROTO_SPI; 1590 scsi_ulto2b(iid, id->scsi_addr); 1591 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 1592 return (sizeof(*id)); 1593 } 1594 } 1595} 1596 1597static int 1598ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id) 1599{ 1600 return (0); 1601} 1602 1603static int 1604ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id) 1605{ 1606 return (0); 1607} 1608 1609/* 1610 * Data movement routine for the CTL ioctl frontend port. 1611 */ 1612static int 1613ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio) 1614{ 1615 struct ctl_sg_entry *ext_sglist, *kern_sglist; 1616 struct ctl_sg_entry ext_entry, kern_entry; 1617 int ext_sglen, ext_sg_entries, kern_sg_entries; 1618 int ext_sg_start, ext_offset; 1619 int len_to_copy, len_copied; 1620 int kern_watermark, ext_watermark; 1621 int ext_sglist_malloced; 1622 int i, j; 1623 1624 ext_sglist_malloced = 0; 1625 ext_sg_start = 0; 1626 ext_offset = 0; 1627 1628 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove\n")); 1629 1630 /* 1631 * If this flag is set, fake the data transfer. 1632 */ 1633 if (ctsio->io_hdr.flags & CTL_FLAG_NO_DATAMOVE) { 1634 ctsio->ext_data_filled = ctsio->ext_data_len; 1635 goto bailout; 1636 } 1637 1638 /* 1639 * To simplify things here, if we have a single buffer, stick it in 1640 * a S/G entry and just make it a single entry S/G list. 1641 */ 1642 if (ctsio->io_hdr.flags & CTL_FLAG_EDPTR_SGLIST) { 1643 int len_seen; 1644 1645 ext_sglen = ctsio->ext_sg_entries * sizeof(*ext_sglist); 1646 1647 ext_sglist = (struct ctl_sg_entry *)malloc(ext_sglen, M_CTL, 1648 M_WAITOK); 1649 ext_sglist_malloced = 1; 1650 if (copyin(ctsio->ext_data_ptr, ext_sglist, 1651 ext_sglen) != 0) { 1652 ctl_set_internal_failure(ctsio, 1653 /*sks_valid*/ 0, 1654 /*retry_count*/ 0); 1655 goto bailout; 1656 } 1657 ext_sg_entries = ctsio->ext_sg_entries; 1658 len_seen = 0; 1659 for (i = 0; i < ext_sg_entries; i++) { 1660 if ((len_seen + ext_sglist[i].len) >= 1661 ctsio->ext_data_filled) { 1662 ext_sg_start = i; 1663 ext_offset = ctsio->ext_data_filled - len_seen; 1664 break; 1665 } 1666 len_seen += ext_sglist[i].len; 1667 } 1668 } else { 1669 ext_sglist = &ext_entry; 1670 ext_sglist->addr = ctsio->ext_data_ptr; 1671 ext_sglist->len = ctsio->ext_data_len; 1672 ext_sg_entries = 1; 1673 ext_sg_start = 0; 1674 ext_offset = ctsio->ext_data_filled; 1675 } 1676 1677 if (ctsio->kern_sg_entries > 0) { 1678 kern_sglist = (struct ctl_sg_entry *)ctsio->kern_data_ptr; 1679 kern_sg_entries = ctsio->kern_sg_entries; 1680 } else { 1681 kern_sglist = &kern_entry; 1682 kern_sglist->addr = ctsio->kern_data_ptr; 1683 kern_sglist->len = ctsio->kern_data_len; 1684 kern_sg_entries = 1; 1685 } 1686 1687 1688 kern_watermark = 0; 1689 ext_watermark = ext_offset; 1690 len_copied = 0; 1691 for (i = ext_sg_start, j = 0; 1692 i < ext_sg_entries && j < kern_sg_entries;) { 1693 uint8_t *ext_ptr, *kern_ptr; 1694 1695 len_to_copy = ctl_min(ext_sglist[i].len - ext_watermark, 1696 kern_sglist[j].len - kern_watermark); 1697 1698 ext_ptr = (uint8_t *)ext_sglist[i].addr; 1699 ext_ptr = ext_ptr + ext_watermark; 1700 if (ctsio->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 1701 /* 1702 * XXX KDM fix this! 1703 */ 1704 panic("need to implement bus address support"); 1705#if 0 1706 kern_ptr = bus_to_virt(kern_sglist[j].addr); 1707#endif 1708 } else 1709 kern_ptr = (uint8_t *)kern_sglist[j].addr; 1710 kern_ptr = kern_ptr + kern_watermark; 1711 1712 kern_watermark += len_to_copy; 1713 ext_watermark += len_to_copy; 1714 1715 if ((ctsio->io_hdr.flags & CTL_FLAG_DATA_MASK) == 1716 CTL_FLAG_DATA_IN) { 1717 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1718 "bytes to user\n", len_to_copy)); 1719 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1720 "to %p\n", kern_ptr, ext_ptr)); 1721 if (copyout(kern_ptr, ext_ptr, len_to_copy) != 0) { 1722 ctl_set_internal_failure(ctsio, 1723 /*sks_valid*/ 0, 1724 /*retry_count*/ 0); 1725 goto bailout; 1726 } 1727 } else { 1728 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1729 "bytes from user\n", len_to_copy)); 1730 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1731 "to %p\n", ext_ptr, kern_ptr)); 1732 if (copyin(ext_ptr, kern_ptr, len_to_copy)!= 0){ 1733 ctl_set_internal_failure(ctsio, 1734 /*sks_valid*/ 0, 1735 /*retry_count*/0); 1736 goto bailout; 1737 } 1738 } 1739 1740 len_copied += len_to_copy; 1741 1742 if (ext_sglist[i].len == ext_watermark) { 1743 i++; 1744 ext_watermark = 0; 1745 } 1746 1747 if (kern_sglist[j].len == kern_watermark) { 1748 j++; 1749 kern_watermark = 0; 1750 } 1751 } 1752 1753 ctsio->ext_data_filled += len_copied; 1754 1755 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_sg_entries: %d, " 1756 "kern_sg_entries: %d\n", ext_sg_entries, 1757 kern_sg_entries)); 1758 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_data_len = %d, " 1759 "kern_data_len = %d\n", ctsio->ext_data_len, 1760 ctsio->kern_data_len)); 1761 1762 1763 /* XXX KDM set residual?? */ 1764bailout: 1765 1766 if (ext_sglist_malloced != 0) 1767 free(ext_sglist, M_CTL); 1768 1769 return (CTL_RETVAL_COMPLETE); 1770} 1771 1772/* 1773 * Serialize a command that went down the "wrong" side, and so was sent to 1774 * this controller for execution. The logic is a little different than the 1775 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 1776 * sent back to the other side, but in the success case, we execute the 1777 * command on this side (XFER mode) or tell the other side to execute it 1778 * (SER_ONLY mode). 1779 */ 1780static int 1781ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 1782{ 1783 struct ctl_softc *ctl_softc; 1784 union ctl_ha_msg msg_info; 1785 struct ctl_lun *lun; 1786 int retval = 0; 1787 uint32_t targ_lun; 1788 1789 ctl_softc = control_softc; 1790 1791 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 1792 lun = ctl_softc->ctl_luns[targ_lun]; 1793 if (lun==NULL) 1794 { 1795 /* 1796 * Why isn't LUN defined? The other side wouldn't 1797 * send a cmd if the LUN is undefined. 1798 */ 1799 printf("%s: Bad JUJU!, LUN is NULL!\n", __func__); 1800 1801 /* "Logical unit not supported" */ 1802 ctl_set_sense_data(&msg_info.scsi.sense_data, 1803 lun, 1804 /*sense_format*/SSD_TYPE_NONE, 1805 /*current_error*/ 1, 1806 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1807 /*asc*/ 0x25, 1808 /*ascq*/ 0x00, 1809 SSD_ELEM_NONE); 1810 1811 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1812 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1813 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1814 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1815 msg_info.hdr.serializing_sc = NULL; 1816 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1817 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1818 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1819 } 1820 return(1); 1821 1822 } 1823 1824 mtx_lock(&lun->lun_lock); 1825 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1826 1827 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 1828 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 1829 ooa_links))) { 1830 case CTL_ACTION_BLOCK: 1831 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 1832 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 1833 blocked_links); 1834 break; 1835 case CTL_ACTION_PASS: 1836 case CTL_ACTION_SKIP: 1837 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 1838 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 1839 ctl_enqueue_rtr((union ctl_io *)ctsio); 1840 } else { 1841 1842 /* send msg back to other side */ 1843 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1844 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 1845 msg_info.hdr.msg_type = CTL_MSG_R2R; 1846#if 0 1847 printf("2. pOrig %x\n", (int)msg_info.hdr.original_sc); 1848#endif 1849 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1850 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1851 } 1852 } 1853 break; 1854 case CTL_ACTION_OVERLAP: 1855 /* OVERLAPPED COMMANDS ATTEMPTED */ 1856 ctl_set_sense_data(&msg_info.scsi.sense_data, 1857 lun, 1858 /*sense_format*/SSD_TYPE_NONE, 1859 /*current_error*/ 1, 1860 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1861 /*asc*/ 0x4E, 1862 /*ascq*/ 0x00, 1863 SSD_ELEM_NONE); 1864 1865 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1866 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1867 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1868 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1869 msg_info.hdr.serializing_sc = NULL; 1870 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1871#if 0 1872 printf("BAD JUJU:Major Bummer Overlap\n"); 1873#endif 1874 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1875 retval = 1; 1876 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1877 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1878 } 1879 break; 1880 case CTL_ACTION_OVERLAP_TAG: 1881 /* TAGGED OVERLAPPED COMMANDS (NN = QUEUE TAG) */ 1882 ctl_set_sense_data(&msg_info.scsi.sense_data, 1883 lun, 1884 /*sense_format*/SSD_TYPE_NONE, 1885 /*current_error*/ 1, 1886 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1887 /*asc*/ 0x4D, 1888 /*ascq*/ ctsio->tag_num & 0xff, 1889 SSD_ELEM_NONE); 1890 1891 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1892 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1893 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1894 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1895 msg_info.hdr.serializing_sc = NULL; 1896 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1897#if 0 1898 printf("BAD JUJU:Major Bummer Overlap Tag\n"); 1899#endif 1900 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1901 retval = 1; 1902 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1903 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1904 } 1905 break; 1906 case CTL_ACTION_ERROR: 1907 default: 1908 /* "Internal target failure" */ 1909 ctl_set_sense_data(&msg_info.scsi.sense_data, 1910 lun, 1911 /*sense_format*/SSD_TYPE_NONE, 1912 /*current_error*/ 1, 1913 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 1914 /*asc*/ 0x44, 1915 /*ascq*/ 0x00, 1916 SSD_ELEM_NONE); 1917 1918 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1919 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1920 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1921 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1922 msg_info.hdr.serializing_sc = NULL; 1923 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1924#if 0 1925 printf("BAD JUJU:Major Bummer HW Error\n"); 1926#endif 1927 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1928 retval = 1; 1929 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1930 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1931 } 1932 break; 1933 } 1934 mtx_unlock(&lun->lun_lock); 1935 return (retval); 1936} 1937 1938static int 1939ctl_ioctl_submit_wait(union ctl_io *io) 1940{ 1941 struct ctl_fe_ioctl_params params; 1942 ctl_fe_ioctl_state last_state; 1943 int done, retval; 1944 1945 retval = 0; 1946 1947 bzero(¶ms, sizeof(params)); 1948 1949 mtx_init(¶ms.ioctl_mtx, "ctliocmtx", NULL, MTX_DEF); 1950 cv_init(¶ms.sem, "ctlioccv"); 1951 params.state = CTL_IOCTL_INPROG; 1952 last_state = params.state; 1953 1954 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = ¶ms; 1955 1956 CTL_DEBUG_PRINT(("ctl_ioctl_submit_wait\n")); 1957 1958 /* This shouldn't happen */ 1959 if ((retval = ctl_queue(io)) != CTL_RETVAL_COMPLETE) 1960 return (retval); 1961 1962 done = 0; 1963 1964 do { 1965 mtx_lock(¶ms.ioctl_mtx); 1966 /* 1967 * Check the state here, and don't sleep if the state has 1968 * already changed (i.e. wakeup has already occured, but we 1969 * weren't waiting yet). 1970 */ 1971 if (params.state == last_state) { 1972 /* XXX KDM cv_wait_sig instead? */ 1973 cv_wait(¶ms.sem, ¶ms.ioctl_mtx); 1974 } 1975 last_state = params.state; 1976 1977 switch (params.state) { 1978 case CTL_IOCTL_INPROG: 1979 /* Why did we wake up? */ 1980 /* XXX KDM error here? */ 1981 mtx_unlock(¶ms.ioctl_mtx); 1982 break; 1983 case CTL_IOCTL_DATAMOVE: 1984 CTL_DEBUG_PRINT(("got CTL_IOCTL_DATAMOVE\n")); 1985 1986 /* 1987 * change last_state back to INPROG to avoid 1988 * deadlock on subsequent data moves. 1989 */ 1990 params.state = last_state = CTL_IOCTL_INPROG; 1991 1992 mtx_unlock(¶ms.ioctl_mtx); 1993 ctl_ioctl_do_datamove(&io->scsiio); 1994 /* 1995 * Note that in some cases, most notably writes, 1996 * this will queue the I/O and call us back later. 1997 * In other cases, generally reads, this routine 1998 * will immediately call back and wake us up, 1999 * probably using our own context. 2000 */ 2001 io->scsiio.be_move_done(io); 2002 break; 2003 case CTL_IOCTL_DONE: 2004 mtx_unlock(¶ms.ioctl_mtx); 2005 CTL_DEBUG_PRINT(("got CTL_IOCTL_DONE\n")); 2006 done = 1; 2007 break; 2008 default: 2009 mtx_unlock(¶ms.ioctl_mtx); 2010 /* XXX KDM error here? */ 2011 break; 2012 } 2013 } while (done == 0); 2014 2015 mtx_destroy(¶ms.ioctl_mtx); 2016 cv_destroy(¶ms.sem); 2017 2018 return (CTL_RETVAL_COMPLETE); 2019} 2020 2021static void 2022ctl_ioctl_datamove(union ctl_io *io) 2023{ 2024 struct ctl_fe_ioctl_params *params; 2025 2026 params = (struct ctl_fe_ioctl_params *) 2027 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 2028 2029 mtx_lock(¶ms->ioctl_mtx); 2030 params->state = CTL_IOCTL_DATAMOVE; 2031 cv_broadcast(¶ms->sem); 2032 mtx_unlock(¶ms->ioctl_mtx); 2033} 2034 2035static void 2036ctl_ioctl_done(union ctl_io *io) 2037{ 2038 struct ctl_fe_ioctl_params *params; 2039 2040 params = (struct ctl_fe_ioctl_params *) 2041 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 2042 2043 mtx_lock(¶ms->ioctl_mtx); 2044 params->state = CTL_IOCTL_DONE; 2045 cv_broadcast(¶ms->sem); 2046 mtx_unlock(¶ms->ioctl_mtx); 2047} 2048 2049static void 2050ctl_ioctl_hard_startstop_callback(void *arg, struct cfi_metatask *metatask) 2051{ 2052 struct ctl_fe_ioctl_startstop_info *sd_info; 2053 2054 sd_info = (struct ctl_fe_ioctl_startstop_info *)arg; 2055 2056 sd_info->hs_info.status = metatask->status; 2057 sd_info->hs_info.total_luns = metatask->taskinfo.startstop.total_luns; 2058 sd_info->hs_info.luns_complete = 2059 metatask->taskinfo.startstop.luns_complete; 2060 sd_info->hs_info.luns_failed = metatask->taskinfo.startstop.luns_failed; 2061 2062 cv_broadcast(&sd_info->sem); 2063} 2064 2065static void 2066ctl_ioctl_bbrread_callback(void *arg, struct cfi_metatask *metatask) 2067{ 2068 struct ctl_fe_ioctl_bbrread_info *fe_bbr_info; 2069 2070 fe_bbr_info = (struct ctl_fe_ioctl_bbrread_info *)arg; 2071 2072 mtx_lock(fe_bbr_info->lock); 2073 fe_bbr_info->bbr_info->status = metatask->status; 2074 fe_bbr_info->bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2075 fe_bbr_info->wakeup_done = 1; 2076 mtx_unlock(fe_bbr_info->lock); 2077 2078 cv_broadcast(&fe_bbr_info->sem); 2079} 2080 2081/* 2082 * Returns 0 for success, errno for failure. 2083 */ 2084static int 2085ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2086 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2087{ 2088 union ctl_io *io; 2089 int retval; 2090 2091 retval = 0; 2092 2093 mtx_lock(&lun->lun_lock); 2094 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2095 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2096 ooa_links)) { 2097 struct ctl_ooa_entry *entry; 2098 2099 /* 2100 * If we've got more than we can fit, just count the 2101 * remaining entries. 2102 */ 2103 if (*cur_fill_num >= ooa_hdr->alloc_num) 2104 continue; 2105 2106 entry = &kern_entries[*cur_fill_num]; 2107 2108 entry->tag_num = io->scsiio.tag_num; 2109 entry->lun_num = lun->lun; 2110#ifdef CTL_TIME_IO 2111 entry->start_bt = io->io_hdr.start_bt; 2112#endif 2113 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2114 entry->cdb_len = io->scsiio.cdb_len; 2115 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2116 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2117 2118 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2119 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2120 2121 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2122 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2123 2124 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2125 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2126 2127 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2128 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2129 } 2130 mtx_unlock(&lun->lun_lock); 2131 2132 return (retval); 2133} 2134 2135static void * 2136ctl_copyin_alloc(void *user_addr, int len, char *error_str, 2137 size_t error_str_len) 2138{ 2139 void *kptr; 2140 2141 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2142 2143 if (copyin(user_addr, kptr, len) != 0) { 2144 snprintf(error_str, error_str_len, "Error copying %d bytes " 2145 "from user address %p to kernel address %p", len, 2146 user_addr, kptr); 2147 free(kptr, M_CTL); 2148 return (NULL); 2149 } 2150 2151 return (kptr); 2152} 2153 2154static void 2155ctl_free_args(int num_args, struct ctl_be_arg *args) 2156{ 2157 int i; 2158 2159 if (args == NULL) 2160 return; 2161 2162 for (i = 0; i < num_args; i++) { 2163 free(args[i].kname, M_CTL); 2164 free(args[i].kvalue, M_CTL); 2165 } 2166 2167 free(args, M_CTL); 2168} 2169 2170static struct ctl_be_arg * 2171ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2172 char *error_str, size_t error_str_len) 2173{ 2174 struct ctl_be_arg *args; 2175 int i; 2176 2177 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2178 error_str, error_str_len); 2179 2180 if (args == NULL) 2181 goto bailout; 2182 2183 for (i = 0; i < num_args; i++) { 2184 args[i].kname = NULL; 2185 args[i].kvalue = NULL; 2186 } 2187 2188 for (i = 0; i < num_args; i++) { 2189 uint8_t *tmpptr; 2190 2191 args[i].kname = ctl_copyin_alloc(args[i].name, 2192 args[i].namelen, error_str, error_str_len); 2193 if (args[i].kname == NULL) 2194 goto bailout; 2195 2196 if (args[i].kname[args[i].namelen - 1] != '\0') { 2197 snprintf(error_str, error_str_len, "Argument %d " 2198 "name is not NUL-terminated", i); 2199 goto bailout; 2200 } 2201 2202 if (args[i].flags & CTL_BEARG_RD) { 2203 tmpptr = ctl_copyin_alloc(args[i].value, 2204 args[i].vallen, error_str, error_str_len); 2205 if (tmpptr == NULL) 2206 goto bailout; 2207 if ((args[i].flags & CTL_BEARG_ASCII) 2208 && (tmpptr[args[i].vallen - 1] != '\0')) { 2209 snprintf(error_str, error_str_len, "Argument " 2210 "%d value is not NUL-terminated", i); 2211 goto bailout; 2212 } 2213 args[i].kvalue = tmpptr; 2214 } else { 2215 args[i].kvalue = malloc(args[i].vallen, 2216 M_CTL, M_WAITOK | M_ZERO); 2217 } 2218 } 2219 2220 return (args); 2221bailout: 2222 2223 ctl_free_args(num_args, args); 2224 2225 return (NULL); 2226} 2227 2228static void 2229ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2230{ 2231 int i; 2232 2233 for (i = 0; i < num_args; i++) { 2234 if (args[i].flags & CTL_BEARG_WR) 2235 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2236 } 2237} 2238 2239/* 2240 * Escape characters that are illegal or not recommended in XML. 2241 */ 2242int 2243ctl_sbuf_printf_esc(struct sbuf *sb, char *str, int size) 2244{ 2245 char *end = str + size; 2246 int retval; 2247 2248 retval = 0; 2249 2250 for (; *str && str < end; str++) { 2251 switch (*str) { 2252 case '&': 2253 retval = sbuf_printf(sb, "&"); 2254 break; 2255 case '>': 2256 retval = sbuf_printf(sb, ">"); 2257 break; 2258 case '<': 2259 retval = sbuf_printf(sb, "<"); 2260 break; 2261 default: 2262 retval = sbuf_putc(sb, *str); 2263 break; 2264 } 2265 2266 if (retval != 0) 2267 break; 2268 2269 } 2270 2271 return (retval); 2272} 2273 2274static void 2275ctl_id_sbuf(struct ctl_devid *id, struct sbuf *sb) 2276{ 2277 struct scsi_vpd_id_descriptor *desc; 2278 int i; 2279 2280 if (id == NULL || id->len < 4) 2281 return; 2282 desc = (struct scsi_vpd_id_descriptor *)id->data; 2283 switch (desc->id_type & SVPD_ID_TYPE_MASK) { 2284 case SVPD_ID_TYPE_T10: 2285 sbuf_printf(sb, "t10."); 2286 break; 2287 case SVPD_ID_TYPE_EUI64: 2288 sbuf_printf(sb, "eui."); 2289 break; 2290 case SVPD_ID_TYPE_NAA: 2291 sbuf_printf(sb, "naa."); 2292 break; 2293 case SVPD_ID_TYPE_SCSI_NAME: 2294 break; 2295 } 2296 switch (desc->proto_codeset & SVPD_ID_CODESET_MASK) { 2297 case SVPD_ID_CODESET_BINARY: 2298 for (i = 0; i < desc->length; i++) 2299 sbuf_printf(sb, "%02x", desc->identifier[i]); 2300 break; 2301 case SVPD_ID_CODESET_ASCII: 2302 sbuf_printf(sb, "%.*s", (int)desc->length, 2303 (char *)desc->identifier); 2304 break; 2305 case SVPD_ID_CODESET_UTF8: 2306 sbuf_printf(sb, "%s", (char *)desc->identifier); 2307 break; 2308 } 2309} 2310 2311static int 2312ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2313 struct thread *td) 2314{ 2315 struct ctl_softc *softc; 2316 int retval; 2317 2318 softc = control_softc; 2319 2320 retval = 0; 2321 2322 switch (cmd) { 2323 case CTL_IO: { 2324 union ctl_io *io; 2325 void *pool_tmp; 2326 2327 /* 2328 * If we haven't been "enabled", don't allow any SCSI I/O 2329 * to this FETD. 2330 */ 2331 if ((softc->ioctl_info.flags & CTL_IOCTL_FLAG_ENABLED) == 0) { 2332 retval = EPERM; 2333 break; 2334 } 2335 2336 io = ctl_alloc_io(softc->ioctl_info.port.ctl_pool_ref); 2337 2338 /* 2339 * Need to save the pool reference so it doesn't get 2340 * spammed by the user's ctl_io. 2341 */ 2342 pool_tmp = io->io_hdr.pool; 2343 memcpy(io, (void *)addr, sizeof(*io)); 2344 io->io_hdr.pool = pool_tmp; 2345 2346 /* 2347 * No status yet, so make sure the status is set properly. 2348 */ 2349 io->io_hdr.status = CTL_STATUS_NONE; 2350 2351 /* 2352 * The user sets the initiator ID, target and LUN IDs. 2353 */ 2354 io->io_hdr.nexus.targ_port = softc->ioctl_info.port.targ_port; 2355 io->io_hdr.flags |= CTL_FLAG_USER_REQ; 2356 if ((io->io_hdr.io_type == CTL_IO_SCSI) 2357 && (io->scsiio.tag_type != CTL_TAG_UNTAGGED)) 2358 io->scsiio.tag_num = softc->ioctl_info.cur_tag_num++; 2359 2360 retval = ctl_ioctl_submit_wait(io); 2361 2362 if (retval != 0) { 2363 ctl_free_io(io); 2364 break; 2365 } 2366 2367 memcpy((void *)addr, io, sizeof(*io)); 2368 2369 /* return this to our pool */ 2370 ctl_free_io(io); 2371 2372 break; 2373 } 2374 case CTL_ENABLE_PORT: 2375 case CTL_DISABLE_PORT: 2376 case CTL_SET_PORT_WWNS: { 2377 struct ctl_port *port; 2378 struct ctl_port_entry *entry; 2379 2380 entry = (struct ctl_port_entry *)addr; 2381 2382 mtx_lock(&softc->ctl_lock); 2383 STAILQ_FOREACH(port, &softc->port_list, links) { 2384 int action, done; 2385 2386 action = 0; 2387 done = 0; 2388 2389 if ((entry->port_type == CTL_PORT_NONE) 2390 && (entry->targ_port == port->targ_port)) { 2391 /* 2392 * If the user only wants to enable or 2393 * disable or set WWNs on a specific port, 2394 * do the operation and we're done. 2395 */ 2396 action = 1; 2397 done = 1; 2398 } else if (entry->port_type & port->port_type) { 2399 /* 2400 * Compare the user's type mask with the 2401 * particular frontend type to see if we 2402 * have a match. 2403 */ 2404 action = 1; 2405 done = 0; 2406 2407 /* 2408 * Make sure the user isn't trying to set 2409 * WWNs on multiple ports at the same time. 2410 */ 2411 if (cmd == CTL_SET_PORT_WWNS) { 2412 printf("%s: Can't set WWNs on " 2413 "multiple ports\n", __func__); 2414 retval = EINVAL; 2415 break; 2416 } 2417 } 2418 if (action != 0) { 2419 /* 2420 * XXX KDM we have to drop the lock here, 2421 * because the online/offline operations 2422 * can potentially block. We need to 2423 * reference count the frontends so they 2424 * can't go away, 2425 */ 2426 mtx_unlock(&softc->ctl_lock); 2427 2428 if (cmd == CTL_ENABLE_PORT) { 2429 struct ctl_lun *lun; 2430 2431 STAILQ_FOREACH(lun, &softc->lun_list, 2432 links) { 2433 port->lun_enable(port->targ_lun_arg, 2434 lun->target, 2435 lun->lun); 2436 } 2437 2438 ctl_port_online(port); 2439 } else if (cmd == CTL_DISABLE_PORT) { 2440 struct ctl_lun *lun; 2441 2442 ctl_port_offline(port); 2443 2444 STAILQ_FOREACH(lun, &softc->lun_list, 2445 links) { 2446 port->lun_disable( 2447 port->targ_lun_arg, 2448 lun->target, 2449 lun->lun); 2450 } 2451 } 2452 2453 mtx_lock(&softc->ctl_lock); 2454 2455 if (cmd == CTL_SET_PORT_WWNS) 2456 ctl_port_set_wwns(port, 2457 (entry->flags & CTL_PORT_WWNN_VALID) ? 2458 1 : 0, entry->wwnn, 2459 (entry->flags & CTL_PORT_WWPN_VALID) ? 2460 1 : 0, entry->wwpn); 2461 } 2462 if (done != 0) 2463 break; 2464 } 2465 mtx_unlock(&softc->ctl_lock); 2466 break; 2467 } 2468 case CTL_GET_PORT_LIST: { 2469 struct ctl_port *port; 2470 struct ctl_port_list *list; 2471 int i; 2472 2473 list = (struct ctl_port_list *)addr; 2474 2475 if (list->alloc_len != (list->alloc_num * 2476 sizeof(struct ctl_port_entry))) { 2477 printf("%s: CTL_GET_PORT_LIST: alloc_len %u != " 2478 "alloc_num %u * sizeof(struct ctl_port_entry) " 2479 "%zu\n", __func__, list->alloc_len, 2480 list->alloc_num, sizeof(struct ctl_port_entry)); 2481 retval = EINVAL; 2482 break; 2483 } 2484 list->fill_len = 0; 2485 list->fill_num = 0; 2486 list->dropped_num = 0; 2487 i = 0; 2488 mtx_lock(&softc->ctl_lock); 2489 STAILQ_FOREACH(port, &softc->port_list, links) { 2490 struct ctl_port_entry entry, *list_entry; 2491 2492 if (list->fill_num >= list->alloc_num) { 2493 list->dropped_num++; 2494 continue; 2495 } 2496 2497 entry.port_type = port->port_type; 2498 strlcpy(entry.port_name, port->port_name, 2499 sizeof(entry.port_name)); 2500 entry.targ_port = port->targ_port; 2501 entry.physical_port = port->physical_port; 2502 entry.virtual_port = port->virtual_port; 2503 entry.wwnn = port->wwnn; 2504 entry.wwpn = port->wwpn; 2505 if (port->status & CTL_PORT_STATUS_ONLINE) 2506 entry.online = 1; 2507 else 2508 entry.online = 0; 2509 2510 list_entry = &list->entries[i]; 2511 2512 retval = copyout(&entry, list_entry, sizeof(entry)); 2513 if (retval != 0) { 2514 printf("%s: CTL_GET_PORT_LIST: copyout " 2515 "returned %d\n", __func__, retval); 2516 break; 2517 } 2518 i++; 2519 list->fill_num++; 2520 list->fill_len += sizeof(entry); 2521 } 2522 mtx_unlock(&softc->ctl_lock); 2523 2524 /* 2525 * If this is non-zero, we had a copyout fault, so there's 2526 * probably no point in attempting to set the status inside 2527 * the structure. 2528 */ 2529 if (retval != 0) 2530 break; 2531 2532 if (list->dropped_num > 0) 2533 list->status = CTL_PORT_LIST_NEED_MORE_SPACE; 2534 else 2535 list->status = CTL_PORT_LIST_OK; 2536 break; 2537 } 2538 case CTL_DUMP_OOA: { 2539 struct ctl_lun *lun; 2540 union ctl_io *io; 2541 char printbuf[128]; 2542 struct sbuf sb; 2543 2544 mtx_lock(&softc->ctl_lock); 2545 printf("Dumping OOA queues:\n"); 2546 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2547 mtx_lock(&lun->lun_lock); 2548 for (io = (union ctl_io *)TAILQ_FIRST( 2549 &lun->ooa_queue); io != NULL; 2550 io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2551 ooa_links)) { 2552 sbuf_new(&sb, printbuf, sizeof(printbuf), 2553 SBUF_FIXEDLEN); 2554 sbuf_printf(&sb, "LUN %jd tag 0x%04x%s%s%s%s: ", 2555 (intmax_t)lun->lun, 2556 io->scsiio.tag_num, 2557 (io->io_hdr.flags & 2558 CTL_FLAG_BLOCKED) ? "" : " BLOCKED", 2559 (io->io_hdr.flags & 2560 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 2561 (io->io_hdr.flags & 2562 CTL_FLAG_ABORT) ? " ABORT" : "", 2563 (io->io_hdr.flags & 2564 CTL_FLAG_IS_WAS_ON_RTR) ? " RTR" : ""); 2565 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 2566 sbuf_finish(&sb); 2567 printf("%s\n", sbuf_data(&sb)); 2568 } 2569 mtx_unlock(&lun->lun_lock); 2570 } 2571 printf("OOA queues dump done\n"); 2572 mtx_unlock(&softc->ctl_lock); 2573 break; 2574 } 2575 case CTL_GET_OOA: { 2576 struct ctl_lun *lun; 2577 struct ctl_ooa *ooa_hdr; 2578 struct ctl_ooa_entry *entries; 2579 uint32_t cur_fill_num; 2580 2581 ooa_hdr = (struct ctl_ooa *)addr; 2582 2583 if ((ooa_hdr->alloc_len == 0) 2584 || (ooa_hdr->alloc_num == 0)) { 2585 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2586 "must be non-zero\n", __func__, 2587 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2588 retval = EINVAL; 2589 break; 2590 } 2591 2592 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2593 sizeof(struct ctl_ooa_entry))) { 2594 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2595 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2596 __func__, ooa_hdr->alloc_len, 2597 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2598 retval = EINVAL; 2599 break; 2600 } 2601 2602 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2603 if (entries == NULL) { 2604 printf("%s: could not allocate %d bytes for OOA " 2605 "dump\n", __func__, ooa_hdr->alloc_len); 2606 retval = ENOMEM; 2607 break; 2608 } 2609 2610 mtx_lock(&softc->ctl_lock); 2611 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2612 && ((ooa_hdr->lun_num >= CTL_MAX_LUNS) 2613 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2614 mtx_unlock(&softc->ctl_lock); 2615 free(entries, M_CTL); 2616 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2617 __func__, (uintmax_t)ooa_hdr->lun_num); 2618 retval = EINVAL; 2619 break; 2620 } 2621 2622 cur_fill_num = 0; 2623 2624 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2625 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2626 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2627 ooa_hdr, entries); 2628 if (retval != 0) 2629 break; 2630 } 2631 if (retval != 0) { 2632 mtx_unlock(&softc->ctl_lock); 2633 free(entries, M_CTL); 2634 break; 2635 } 2636 } else { 2637 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2638 2639 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num,ooa_hdr, 2640 entries); 2641 } 2642 mtx_unlock(&softc->ctl_lock); 2643 2644 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2645 ooa_hdr->fill_len = ooa_hdr->fill_num * 2646 sizeof(struct ctl_ooa_entry); 2647 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2648 if (retval != 0) { 2649 printf("%s: error copying out %d bytes for OOA dump\n", 2650 __func__, ooa_hdr->fill_len); 2651 } 2652 2653 getbintime(&ooa_hdr->cur_bt); 2654 2655 if (cur_fill_num > ooa_hdr->alloc_num) { 2656 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2657 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2658 } else { 2659 ooa_hdr->dropped_num = 0; 2660 ooa_hdr->status = CTL_OOA_OK; 2661 } 2662 2663 free(entries, M_CTL); 2664 break; 2665 } 2666 case CTL_CHECK_OOA: { 2667 union ctl_io *io; 2668 struct ctl_lun *lun; 2669 struct ctl_ooa_info *ooa_info; 2670 2671 2672 ooa_info = (struct ctl_ooa_info *)addr; 2673 2674 if (ooa_info->lun_id >= CTL_MAX_LUNS) { 2675 ooa_info->status = CTL_OOA_INVALID_LUN; 2676 break; 2677 } 2678 mtx_lock(&softc->ctl_lock); 2679 lun = softc->ctl_luns[ooa_info->lun_id]; 2680 if (lun == NULL) { 2681 mtx_unlock(&softc->ctl_lock); 2682 ooa_info->status = CTL_OOA_INVALID_LUN; 2683 break; 2684 } 2685 mtx_lock(&lun->lun_lock); 2686 mtx_unlock(&softc->ctl_lock); 2687 ooa_info->num_entries = 0; 2688 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 2689 io != NULL; io = (union ctl_io *)TAILQ_NEXT( 2690 &io->io_hdr, ooa_links)) { 2691 ooa_info->num_entries++; 2692 } 2693 mtx_unlock(&lun->lun_lock); 2694 2695 ooa_info->status = CTL_OOA_SUCCESS; 2696 2697 break; 2698 } 2699 case CTL_HARD_START: 2700 case CTL_HARD_STOP: { 2701 struct ctl_fe_ioctl_startstop_info ss_info; 2702 struct cfi_metatask *metatask; 2703 struct mtx hs_mtx; 2704 2705 mtx_init(&hs_mtx, "HS Mutex", NULL, MTX_DEF); 2706 2707 cv_init(&ss_info.sem, "hard start/stop cv" ); 2708 2709 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2710 if (metatask == NULL) { 2711 retval = ENOMEM; 2712 mtx_destroy(&hs_mtx); 2713 break; 2714 } 2715 2716 if (cmd == CTL_HARD_START) 2717 metatask->tasktype = CFI_TASK_STARTUP; 2718 else 2719 metatask->tasktype = CFI_TASK_SHUTDOWN; 2720 2721 metatask->callback = ctl_ioctl_hard_startstop_callback; 2722 metatask->callback_arg = &ss_info; 2723 2724 cfi_action(metatask); 2725 2726 /* Wait for the callback */ 2727 mtx_lock(&hs_mtx); 2728 cv_wait_sig(&ss_info.sem, &hs_mtx); 2729 mtx_unlock(&hs_mtx); 2730 2731 /* 2732 * All information has been copied from the metatask by the 2733 * time cv_broadcast() is called, so we free the metatask here. 2734 */ 2735 cfi_free_metatask(metatask); 2736 2737 memcpy((void *)addr, &ss_info.hs_info, sizeof(ss_info.hs_info)); 2738 2739 mtx_destroy(&hs_mtx); 2740 break; 2741 } 2742 case CTL_BBRREAD: { 2743 struct ctl_bbrread_info *bbr_info; 2744 struct ctl_fe_ioctl_bbrread_info fe_bbr_info; 2745 struct mtx bbr_mtx; 2746 struct cfi_metatask *metatask; 2747 2748 bbr_info = (struct ctl_bbrread_info *)addr; 2749 2750 bzero(&fe_bbr_info, sizeof(fe_bbr_info)); 2751 2752 bzero(&bbr_mtx, sizeof(bbr_mtx)); 2753 mtx_init(&bbr_mtx, "BBR Mutex", NULL, MTX_DEF); 2754 2755 fe_bbr_info.bbr_info = bbr_info; 2756 fe_bbr_info.lock = &bbr_mtx; 2757 2758 cv_init(&fe_bbr_info.sem, "BBR read cv"); 2759 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2760 2761 if (metatask == NULL) { 2762 mtx_destroy(&bbr_mtx); 2763 cv_destroy(&fe_bbr_info.sem); 2764 retval = ENOMEM; 2765 break; 2766 } 2767 metatask->tasktype = CFI_TASK_BBRREAD; 2768 metatask->callback = ctl_ioctl_bbrread_callback; 2769 metatask->callback_arg = &fe_bbr_info; 2770 metatask->taskinfo.bbrread.lun_num = bbr_info->lun_num; 2771 metatask->taskinfo.bbrread.lba = bbr_info->lba; 2772 metatask->taskinfo.bbrread.len = bbr_info->len; 2773 2774 cfi_action(metatask); 2775 2776 mtx_lock(&bbr_mtx); 2777 while (fe_bbr_info.wakeup_done == 0) 2778 cv_wait_sig(&fe_bbr_info.sem, &bbr_mtx); 2779 mtx_unlock(&bbr_mtx); 2780 2781 bbr_info->status = metatask->status; 2782 bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2783 bbr_info->scsi_status = metatask->taskinfo.bbrread.scsi_status; 2784 memcpy(&bbr_info->sense_data, 2785 &metatask->taskinfo.bbrread.sense_data, 2786 ctl_min(sizeof(bbr_info->sense_data), 2787 sizeof(metatask->taskinfo.bbrread.sense_data))); 2788 2789 cfi_free_metatask(metatask); 2790 2791 mtx_destroy(&bbr_mtx); 2792 cv_destroy(&fe_bbr_info.sem); 2793 2794 break; 2795 } 2796 case CTL_DELAY_IO: { 2797 struct ctl_io_delay_info *delay_info; 2798#ifdef CTL_IO_DELAY 2799 struct ctl_lun *lun; 2800#endif /* CTL_IO_DELAY */ 2801 2802 delay_info = (struct ctl_io_delay_info *)addr; 2803 2804#ifdef CTL_IO_DELAY 2805 mtx_lock(&softc->ctl_lock); 2806 2807 if ((delay_info->lun_id >= CTL_MAX_LUNS) 2808 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2809 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2810 } else { 2811 lun = softc->ctl_luns[delay_info->lun_id]; 2812 mtx_lock(&lun->lun_lock); 2813 2814 delay_info->status = CTL_DELAY_STATUS_OK; 2815 2816 switch (delay_info->delay_type) { 2817 case CTL_DELAY_TYPE_CONT: 2818 break; 2819 case CTL_DELAY_TYPE_ONESHOT: 2820 break; 2821 default: 2822 delay_info->status = 2823 CTL_DELAY_STATUS_INVALID_TYPE; 2824 break; 2825 } 2826 2827 switch (delay_info->delay_loc) { 2828 case CTL_DELAY_LOC_DATAMOVE: 2829 lun->delay_info.datamove_type = 2830 delay_info->delay_type; 2831 lun->delay_info.datamove_delay = 2832 delay_info->delay_secs; 2833 break; 2834 case CTL_DELAY_LOC_DONE: 2835 lun->delay_info.done_type = 2836 delay_info->delay_type; 2837 lun->delay_info.done_delay = 2838 delay_info->delay_secs; 2839 break; 2840 default: 2841 delay_info->status = 2842 CTL_DELAY_STATUS_INVALID_LOC; 2843 break; 2844 } 2845 mtx_unlock(&lun->lun_lock); 2846 } 2847 2848 mtx_unlock(&softc->ctl_lock); 2849#else 2850 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2851#endif /* CTL_IO_DELAY */ 2852 break; 2853 } 2854 case CTL_REALSYNC_SET: { 2855 int *syncstate; 2856 2857 syncstate = (int *)addr; 2858 2859 mtx_lock(&softc->ctl_lock); 2860 switch (*syncstate) { 2861 case 0: 2862 softc->flags &= ~CTL_FLAG_REAL_SYNC; 2863 break; 2864 case 1: 2865 softc->flags |= CTL_FLAG_REAL_SYNC; 2866 break; 2867 default: 2868 retval = EINVAL; 2869 break; 2870 } 2871 mtx_unlock(&softc->ctl_lock); 2872 break; 2873 } 2874 case CTL_REALSYNC_GET: { 2875 int *syncstate; 2876 2877 syncstate = (int*)addr; 2878 2879 mtx_lock(&softc->ctl_lock); 2880 if (softc->flags & CTL_FLAG_REAL_SYNC) 2881 *syncstate = 1; 2882 else 2883 *syncstate = 0; 2884 mtx_unlock(&softc->ctl_lock); 2885 2886 break; 2887 } 2888 case CTL_SETSYNC: 2889 case CTL_GETSYNC: { 2890 struct ctl_sync_info *sync_info; 2891 struct ctl_lun *lun; 2892 2893 sync_info = (struct ctl_sync_info *)addr; 2894 2895 mtx_lock(&softc->ctl_lock); 2896 lun = softc->ctl_luns[sync_info->lun_id]; 2897 if (lun == NULL) { 2898 mtx_unlock(&softc->ctl_lock); 2899 sync_info->status = CTL_GS_SYNC_NO_LUN; 2900 } 2901 /* 2902 * Get or set the sync interval. We're not bounds checking 2903 * in the set case, hopefully the user won't do something 2904 * silly. 2905 */ 2906 mtx_lock(&lun->lun_lock); 2907 mtx_unlock(&softc->ctl_lock); 2908 if (cmd == CTL_GETSYNC) 2909 sync_info->sync_interval = lun->sync_interval; 2910 else 2911 lun->sync_interval = sync_info->sync_interval; 2912 mtx_unlock(&lun->lun_lock); 2913 2914 sync_info->status = CTL_GS_SYNC_OK; 2915 2916 break; 2917 } 2918 case CTL_GETSTATS: { 2919 struct ctl_stats *stats; 2920 struct ctl_lun *lun; 2921 int i; 2922 2923 stats = (struct ctl_stats *)addr; 2924 2925 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2926 stats->alloc_len) { 2927 stats->status = CTL_SS_NEED_MORE_SPACE; 2928 stats->num_luns = softc->num_luns; 2929 break; 2930 } 2931 /* 2932 * XXX KDM no locking here. If the LUN list changes, 2933 * things can blow up. 2934 */ 2935 for (i = 0, lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; 2936 i++, lun = STAILQ_NEXT(lun, links)) { 2937 retval = copyout(&lun->stats, &stats->lun_stats[i], 2938 sizeof(lun->stats)); 2939 if (retval != 0) 2940 break; 2941 } 2942 stats->num_luns = softc->num_luns; 2943 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2944 softc->num_luns; 2945 stats->status = CTL_SS_OK; 2946#ifdef CTL_TIME_IO 2947 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2948#else 2949 stats->flags = CTL_STATS_FLAG_NONE; 2950#endif 2951 getnanouptime(&stats->timestamp); 2952 break; 2953 } 2954 case CTL_ERROR_INJECT: { 2955 struct ctl_error_desc *err_desc, *new_err_desc; 2956 struct ctl_lun *lun; 2957 2958 err_desc = (struct ctl_error_desc *)addr; 2959 2960 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2961 M_WAITOK | M_ZERO); 2962 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2963 2964 mtx_lock(&softc->ctl_lock); 2965 lun = softc->ctl_luns[err_desc->lun_id]; 2966 if (lun == NULL) { 2967 mtx_unlock(&softc->ctl_lock); 2968 free(new_err_desc, M_CTL); 2969 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2970 __func__, (uintmax_t)err_desc->lun_id); 2971 retval = EINVAL; 2972 break; 2973 } 2974 mtx_lock(&lun->lun_lock); 2975 mtx_unlock(&softc->ctl_lock); 2976 2977 /* 2978 * We could do some checking here to verify the validity 2979 * of the request, but given the complexity of error 2980 * injection requests, the checking logic would be fairly 2981 * complex. 2982 * 2983 * For now, if the request is invalid, it just won't get 2984 * executed and might get deleted. 2985 */ 2986 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2987 2988 /* 2989 * XXX KDM check to make sure the serial number is unique, 2990 * in case we somehow manage to wrap. That shouldn't 2991 * happen for a very long time, but it's the right thing to 2992 * do. 2993 */ 2994 new_err_desc->serial = lun->error_serial; 2995 err_desc->serial = lun->error_serial; 2996 lun->error_serial++; 2997 2998 mtx_unlock(&lun->lun_lock); 2999 break; 3000 } 3001 case CTL_ERROR_INJECT_DELETE: { 3002 struct ctl_error_desc *delete_desc, *desc, *desc2; 3003 struct ctl_lun *lun; 3004 int delete_done; 3005 3006 delete_desc = (struct ctl_error_desc *)addr; 3007 delete_done = 0; 3008 3009 mtx_lock(&softc->ctl_lock); 3010 lun = softc->ctl_luns[delete_desc->lun_id]; 3011 if (lun == NULL) { 3012 mtx_unlock(&softc->ctl_lock); 3013 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 3014 __func__, (uintmax_t)delete_desc->lun_id); 3015 retval = EINVAL; 3016 break; 3017 } 3018 mtx_lock(&lun->lun_lock); 3019 mtx_unlock(&softc->ctl_lock); 3020 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 3021 if (desc->serial != delete_desc->serial) 3022 continue; 3023 3024 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 3025 links); 3026 free(desc, M_CTL); 3027 delete_done = 1; 3028 } 3029 mtx_unlock(&lun->lun_lock); 3030 if (delete_done == 0) { 3031 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 3032 "error serial %ju on LUN %u\n", __func__, 3033 delete_desc->serial, delete_desc->lun_id); 3034 retval = EINVAL; 3035 break; 3036 } 3037 break; 3038 } 3039 case CTL_DUMP_STRUCTS: { 3040 int i, j, k, idx; 3041 struct ctl_port *port; 3042 struct ctl_frontend *fe; 3043 3044 mtx_lock(&softc->ctl_lock); 3045 printf("CTL Persistent Reservation information start:\n"); 3046 for (i = 0; i < CTL_MAX_LUNS; i++) { 3047 struct ctl_lun *lun; 3048 3049 lun = softc->ctl_luns[i]; 3050 3051 if ((lun == NULL) 3052 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 3053 continue; 3054 3055 for (j = 0; j < (CTL_MAX_PORTS * 2); j++) { 3056 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 3057 idx = j * CTL_MAX_INIT_PER_PORT + k; 3058 if (lun->pr_keys[idx] == 0) 3059 continue; 3060 printf(" LUN %d port %d iid %d key " 3061 "%#jx\n", i, j, k, 3062 (uintmax_t)lun->pr_keys[idx]); 3063 } 3064 } 3065 } 3066 printf("CTL Persistent Reservation information end\n"); 3067 printf("CTL Ports:\n"); 3068 STAILQ_FOREACH(port, &softc->port_list, links) { 3069 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 3070 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 3071 port->frontend->name, port->port_type, 3072 port->physical_port, port->virtual_port, 3073 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 3074 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3075 if (port->wwpn_iid[j].in_use == 0 && 3076 port->wwpn_iid[j].wwpn == 0 && 3077 port->wwpn_iid[j].name == NULL) 3078 continue; 3079 3080 printf(" iid %u use %d WWPN %#jx '%s'\n", 3081 j, port->wwpn_iid[j].in_use, 3082 (uintmax_t)port->wwpn_iid[j].wwpn, 3083 port->wwpn_iid[j].name); 3084 } 3085 } 3086 printf("CTL Port information end\n"); 3087 mtx_unlock(&softc->ctl_lock); 3088 /* 3089 * XXX KDM calling this without a lock. We'd likely want 3090 * to drop the lock before calling the frontend's dump 3091 * routine anyway. 3092 */ 3093 printf("CTL Frontends:\n"); 3094 STAILQ_FOREACH(fe, &softc->fe_list, links) { 3095 printf(" Frontend '%s'\n", fe->name); 3096 if (fe->fe_dump != NULL) 3097 fe->fe_dump(); 3098 } 3099 printf("CTL Frontend information end\n"); 3100 break; 3101 } 3102 case CTL_LUN_REQ: { 3103 struct ctl_lun_req *lun_req; 3104 struct ctl_backend_driver *backend; 3105 3106 lun_req = (struct ctl_lun_req *)addr; 3107 3108 backend = ctl_backend_find(lun_req->backend); 3109 if (backend == NULL) { 3110 lun_req->status = CTL_LUN_ERROR; 3111 snprintf(lun_req->error_str, 3112 sizeof(lun_req->error_str), 3113 "Backend \"%s\" not found.", 3114 lun_req->backend); 3115 break; 3116 } 3117 if (lun_req->num_be_args > 0) { 3118 lun_req->kern_be_args = ctl_copyin_args( 3119 lun_req->num_be_args, 3120 lun_req->be_args, 3121 lun_req->error_str, 3122 sizeof(lun_req->error_str)); 3123 if (lun_req->kern_be_args == NULL) { 3124 lun_req->status = CTL_LUN_ERROR; 3125 break; 3126 } 3127 } 3128 3129 retval = backend->ioctl(dev, cmd, addr, flag, td); 3130 3131 if (lun_req->num_be_args > 0) { 3132 ctl_copyout_args(lun_req->num_be_args, 3133 lun_req->kern_be_args); 3134 ctl_free_args(lun_req->num_be_args, 3135 lun_req->kern_be_args); 3136 } 3137 break; 3138 } 3139 case CTL_LUN_LIST: { 3140 struct sbuf *sb; 3141 struct ctl_lun *lun; 3142 struct ctl_lun_list *list; 3143 struct ctl_option *opt; 3144 3145 list = (struct ctl_lun_list *)addr; 3146 3147 /* 3148 * Allocate a fixed length sbuf here, based on the length 3149 * of the user's buffer. We could allocate an auto-extending 3150 * buffer, and then tell the user how much larger our 3151 * amount of data is than his buffer, but that presents 3152 * some problems: 3153 * 3154 * 1. The sbuf(9) routines use a blocking malloc, and so 3155 * we can't hold a lock while calling them with an 3156 * auto-extending buffer. 3157 * 3158 * 2. There is not currently a LUN reference counting 3159 * mechanism, outside of outstanding transactions on 3160 * the LUN's OOA queue. So a LUN could go away on us 3161 * while we're getting the LUN number, backend-specific 3162 * information, etc. Thus, given the way things 3163 * currently work, we need to hold the CTL lock while 3164 * grabbing LUN information. 3165 * 3166 * So, from the user's standpoint, the best thing to do is 3167 * allocate what he thinks is a reasonable buffer length, 3168 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3169 * double the buffer length and try again. (And repeat 3170 * that until he succeeds.) 3171 */ 3172 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3173 if (sb == NULL) { 3174 list->status = CTL_LUN_LIST_ERROR; 3175 snprintf(list->error_str, sizeof(list->error_str), 3176 "Unable to allocate %d bytes for LUN list", 3177 list->alloc_len); 3178 break; 3179 } 3180 3181 sbuf_printf(sb, "<ctllunlist>\n"); 3182 3183 mtx_lock(&softc->ctl_lock); 3184 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3185 mtx_lock(&lun->lun_lock); 3186 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3187 (uintmax_t)lun->lun); 3188 3189 /* 3190 * Bail out as soon as we see that we've overfilled 3191 * the buffer. 3192 */ 3193 if (retval != 0) 3194 break; 3195 3196 retval = sbuf_printf(sb, "\t<backend_type>%s" 3197 "</backend_type>\n", 3198 (lun->backend == NULL) ? "none" : 3199 lun->backend->name); 3200 3201 if (retval != 0) 3202 break; 3203 3204 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3205 lun->be_lun->lun_type); 3206 3207 if (retval != 0) 3208 break; 3209 3210 if (lun->backend == NULL) { 3211 retval = sbuf_printf(sb, "</lun>\n"); 3212 if (retval != 0) 3213 break; 3214 continue; 3215 } 3216 3217 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3218 (lun->be_lun->maxlba > 0) ? 3219 lun->be_lun->maxlba + 1 : 0); 3220 3221 if (retval != 0) 3222 break; 3223 3224 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3225 lun->be_lun->blocksize); 3226 3227 if (retval != 0) 3228 break; 3229 3230 retval = sbuf_printf(sb, "\t<serial_number>"); 3231 3232 if (retval != 0) 3233 break; 3234 3235 retval = ctl_sbuf_printf_esc(sb, 3236 lun->be_lun->serial_num, 3237 sizeof(lun->be_lun->serial_num)); 3238 3239 if (retval != 0) 3240 break; 3241 3242 retval = sbuf_printf(sb, "</serial_number>\n"); 3243 3244 if (retval != 0) 3245 break; 3246 3247 retval = sbuf_printf(sb, "\t<device_id>"); 3248 3249 if (retval != 0) 3250 break; 3251 3252 retval = ctl_sbuf_printf_esc(sb, 3253 lun->be_lun->device_id, 3254 sizeof(lun->be_lun->device_id)); 3255 3256 if (retval != 0) 3257 break; 3258 3259 retval = sbuf_printf(sb, "</device_id>\n"); 3260 3261 if (retval != 0) 3262 break; 3263 3264 if (lun->backend->lun_info != NULL) { 3265 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3266 if (retval != 0) 3267 break; 3268 } 3269 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3270 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3271 opt->name, opt->value, opt->name); 3272 if (retval != 0) 3273 break; 3274 } 3275 3276 retval = sbuf_printf(sb, "</lun>\n"); 3277 3278 if (retval != 0) 3279 break; 3280 mtx_unlock(&lun->lun_lock); 3281 } 3282 if (lun != NULL) 3283 mtx_unlock(&lun->lun_lock); 3284 mtx_unlock(&softc->ctl_lock); 3285 3286 if ((retval != 0) 3287 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3288 retval = 0; 3289 sbuf_delete(sb); 3290 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3291 snprintf(list->error_str, sizeof(list->error_str), 3292 "Out of space, %d bytes is too small", 3293 list->alloc_len); 3294 break; 3295 } 3296 3297 sbuf_finish(sb); 3298 3299 retval = copyout(sbuf_data(sb), list->lun_xml, 3300 sbuf_len(sb) + 1); 3301 3302 list->fill_len = sbuf_len(sb) + 1; 3303 list->status = CTL_LUN_LIST_OK; 3304 sbuf_delete(sb); 3305 break; 3306 } 3307 case CTL_ISCSI: { 3308 struct ctl_iscsi *ci; 3309 struct ctl_frontend *fe; 3310 3311 ci = (struct ctl_iscsi *)addr; 3312 3313 fe = ctl_frontend_find("iscsi"); 3314 if (fe == NULL) { 3315 ci->status = CTL_ISCSI_ERROR; 3316 snprintf(ci->error_str, sizeof(ci->error_str), 3317 "Frontend \"iscsi\" not found."); 3318 break; 3319 } 3320 3321 retval = fe->ioctl(dev, cmd, addr, flag, td); 3322 break; 3323 } 3324 case CTL_PORT_REQ: { 3325 struct ctl_req *req; 3326 struct ctl_frontend *fe; 3327 3328 req = (struct ctl_req *)addr; 3329 3330 fe = ctl_frontend_find(req->driver); 3331 if (fe == NULL) { 3332 req->status = CTL_LUN_ERROR; 3333 snprintf(req->error_str, sizeof(req->error_str), 3334 "Frontend \"%s\" not found.", req->driver); 3335 break; 3336 } 3337 if (req->num_args > 0) { 3338 req->kern_args = ctl_copyin_args(req->num_args, 3339 req->args, req->error_str, sizeof(req->error_str)); 3340 if (req->kern_args == NULL) { 3341 req->status = CTL_LUN_ERROR; 3342 break; 3343 } 3344 } 3345 3346 retval = fe->ioctl(dev, cmd, addr, flag, td); 3347 3348 if (req->num_args > 0) { 3349 ctl_copyout_args(req->num_args, req->kern_args); 3350 ctl_free_args(req->num_args, req->kern_args); 3351 } 3352 break; 3353 } 3354 case CTL_PORT_LIST: { 3355 struct sbuf *sb; 3356 struct ctl_port *port; 3357 struct ctl_lun_list *list; 3358 struct ctl_option *opt; 3359 int j; 3360 3361 list = (struct ctl_lun_list *)addr; 3362 3363 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3364 if (sb == NULL) { 3365 list->status = CTL_LUN_LIST_ERROR; 3366 snprintf(list->error_str, sizeof(list->error_str), 3367 "Unable to allocate %d bytes for LUN list", 3368 list->alloc_len); 3369 break; 3370 } 3371 3372 sbuf_printf(sb, "<ctlportlist>\n"); 3373 3374 mtx_lock(&softc->ctl_lock); 3375 STAILQ_FOREACH(port, &softc->port_list, links) { 3376 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3377 (uintmax_t)port->targ_port); 3378 3379 /* 3380 * Bail out as soon as we see that we've overfilled 3381 * the buffer. 3382 */ 3383 if (retval != 0) 3384 break; 3385 3386 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3387 "</frontend_type>\n", port->frontend->name); 3388 if (retval != 0) 3389 break; 3390 3391 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3392 port->port_type); 3393 if (retval != 0) 3394 break; 3395 3396 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3397 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3398 if (retval != 0) 3399 break; 3400 3401 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3402 port->port_name); 3403 if (retval != 0) 3404 break; 3405 3406 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3407 port->physical_port); 3408 if (retval != 0) 3409 break; 3410 3411 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3412 port->virtual_port); 3413 if (retval != 0) 3414 break; 3415 3416 if (port->target_devid != NULL) { 3417 sbuf_printf(sb, "\t<target>"); 3418 ctl_id_sbuf(port->target_devid, sb); 3419 sbuf_printf(sb, "</target>\n"); 3420 } 3421 3422 if (port->port_devid != NULL) { 3423 sbuf_printf(sb, "\t<port>"); 3424 ctl_id_sbuf(port->port_devid, sb); 3425 sbuf_printf(sb, "</port>\n"); 3426 } 3427 3428 if (port->port_info != NULL) { 3429 retval = port->port_info(port->onoff_arg, sb); 3430 if (retval != 0) 3431 break; 3432 } 3433 STAILQ_FOREACH(opt, &port->options, links) { 3434 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3435 opt->name, opt->value, opt->name); 3436 if (retval != 0) 3437 break; 3438 } 3439 3440 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3441 if (port->wwpn_iid[j].in_use == 0 || 3442 (port->wwpn_iid[j].wwpn == 0 && 3443 port->wwpn_iid[j].name == NULL)) 3444 continue; 3445 3446 if (port->wwpn_iid[j].name != NULL) 3447 retval = sbuf_printf(sb, 3448 "\t<initiator>%u %s</initiator>\n", 3449 j, port->wwpn_iid[j].name); 3450 else 3451 retval = sbuf_printf(sb, 3452 "\t<initiator>%u naa.%08jx</initiator>\n", 3453 j, port->wwpn_iid[j].wwpn); 3454 if (retval != 0) 3455 break; 3456 } 3457 if (retval != 0) 3458 break; 3459 3460 retval = sbuf_printf(sb, "</targ_port>\n"); 3461 if (retval != 0) 3462 break; 3463 } 3464 mtx_unlock(&softc->ctl_lock); 3465 3466 if ((retval != 0) 3467 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3468 retval = 0; 3469 sbuf_delete(sb); 3470 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3471 snprintf(list->error_str, sizeof(list->error_str), 3472 "Out of space, %d bytes is too small", 3473 list->alloc_len); 3474 break; 3475 } 3476 3477 sbuf_finish(sb); 3478 3479 retval = copyout(sbuf_data(sb), list->lun_xml, 3480 sbuf_len(sb) + 1); 3481 3482 list->fill_len = sbuf_len(sb) + 1; 3483 list->status = CTL_LUN_LIST_OK; 3484 sbuf_delete(sb); 3485 break; 3486 } 3487 default: { 3488 /* XXX KDM should we fix this? */ 3489#if 0 3490 struct ctl_backend_driver *backend; 3491 unsigned int type; 3492 int found; 3493 3494 found = 0; 3495 3496 /* 3497 * We encode the backend type as the ioctl type for backend 3498 * ioctls. So parse it out here, and then search for a 3499 * backend of this type. 3500 */ 3501 type = _IOC_TYPE(cmd); 3502 3503 STAILQ_FOREACH(backend, &softc->be_list, links) { 3504 if (backend->type == type) { 3505 found = 1; 3506 break; 3507 } 3508 } 3509 if (found == 0) { 3510 printf("ctl: unknown ioctl command %#lx or backend " 3511 "%d\n", cmd, type); 3512 retval = EINVAL; 3513 break; 3514 } 3515 retval = backend->ioctl(dev, cmd, addr, flag, td); 3516#endif 3517 retval = ENOTTY; 3518 break; 3519 } 3520 } 3521 return (retval); 3522} 3523 3524uint32_t 3525ctl_get_initindex(struct ctl_nexus *nexus) 3526{ 3527 if (nexus->targ_port < CTL_MAX_PORTS) 3528 return (nexus->initid.id + 3529 (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3530 else 3531 return (nexus->initid.id + 3532 ((nexus->targ_port - CTL_MAX_PORTS) * 3533 CTL_MAX_INIT_PER_PORT)); 3534} 3535 3536uint32_t 3537ctl_get_resindex(struct ctl_nexus *nexus) 3538{ 3539 return (nexus->initid.id + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3540} 3541 3542uint32_t 3543ctl_port_idx(int port_num) 3544{ 3545 if (port_num < CTL_MAX_PORTS) 3546 return(port_num); 3547 else 3548 return(port_num - CTL_MAX_PORTS); 3549} 3550 3551static uint32_t 3552ctl_map_lun(int port_num, uint32_t lun_id) 3553{ 3554 struct ctl_port *port; 3555 3556 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3557 if (port == NULL) 3558 return (UINT32_MAX); 3559 if (port->lun_map == NULL) 3560 return (lun_id); 3561 return (port->lun_map(port->targ_lun_arg, lun_id)); 3562} 3563 3564static uint32_t 3565ctl_map_lun_back(int port_num, uint32_t lun_id) 3566{ 3567 struct ctl_port *port; 3568 uint32_t i; 3569 3570 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3571 if (port->lun_map == NULL) 3572 return (lun_id); 3573 for (i = 0; i < CTL_MAX_LUNS; i++) { 3574 if (port->lun_map(port->targ_lun_arg, i) == lun_id) 3575 return (i); 3576 } 3577 return (UINT32_MAX); 3578} 3579 3580/* 3581 * Note: This only works for bitmask sizes that are at least 32 bits, and 3582 * that are a power of 2. 3583 */ 3584int 3585ctl_ffz(uint32_t *mask, uint32_t size) 3586{ 3587 uint32_t num_chunks, num_pieces; 3588 int i, j; 3589 3590 num_chunks = (size >> 5); 3591 if (num_chunks == 0) 3592 num_chunks++; 3593 num_pieces = ctl_min((sizeof(uint32_t) * 8), size); 3594 3595 for (i = 0; i < num_chunks; i++) { 3596 for (j = 0; j < num_pieces; j++) { 3597 if ((mask[i] & (1 << j)) == 0) 3598 return ((i << 5) + j); 3599 } 3600 } 3601 3602 return (-1); 3603} 3604 3605int 3606ctl_set_mask(uint32_t *mask, uint32_t bit) 3607{ 3608 uint32_t chunk, piece; 3609 3610 chunk = bit >> 5; 3611 piece = bit % (sizeof(uint32_t) * 8); 3612 3613 if ((mask[chunk] & (1 << piece)) != 0) 3614 return (-1); 3615 else 3616 mask[chunk] |= (1 << piece); 3617 3618 return (0); 3619} 3620 3621int 3622ctl_clear_mask(uint32_t *mask, uint32_t bit) 3623{ 3624 uint32_t chunk, piece; 3625 3626 chunk = bit >> 5; 3627 piece = bit % (sizeof(uint32_t) * 8); 3628 3629 if ((mask[chunk] & (1 << piece)) == 0) 3630 return (-1); 3631 else 3632 mask[chunk] &= ~(1 << piece); 3633 3634 return (0); 3635} 3636 3637int 3638ctl_is_set(uint32_t *mask, uint32_t bit) 3639{ 3640 uint32_t chunk, piece; 3641 3642 chunk = bit >> 5; 3643 piece = bit % (sizeof(uint32_t) * 8); 3644 3645 if ((mask[chunk] & (1 << piece)) == 0) 3646 return (0); 3647 else 3648 return (1); 3649} 3650 3651#ifdef unused 3652/* 3653 * The bus, target and lun are optional, they can be filled in later. 3654 * can_wait is used to determine whether we can wait on the malloc or not. 3655 */ 3656union ctl_io* 3657ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, uint32_t targ_target, 3658 uint32_t targ_lun, int can_wait) 3659{ 3660 union ctl_io *io; 3661 3662 if (can_wait) 3663 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_WAITOK); 3664 else 3665 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_NOWAIT); 3666 3667 if (io != NULL) { 3668 io->io_hdr.io_type = io_type; 3669 io->io_hdr.targ_port = targ_port; 3670 /* 3671 * XXX KDM this needs to change/go away. We need to move 3672 * to a preallocated pool of ctl_scsiio structures. 3673 */ 3674 io->io_hdr.nexus.targ_target.id = targ_target; 3675 io->io_hdr.nexus.targ_lun = targ_lun; 3676 } 3677 3678 return (io); 3679} 3680 3681void 3682ctl_kfree_io(union ctl_io *io) 3683{ 3684 free(io, M_CTL); 3685} 3686#endif /* unused */ 3687 3688/* 3689 * ctl_softc, pool_name, total_ctl_io are passed in. 3690 * npool is passed out. 3691 */ 3692int 3693ctl_pool_create(struct ctl_softc *ctl_softc, const char *pool_name, 3694 uint32_t total_ctl_io, void **npool) 3695{ 3696#ifdef IO_POOLS 3697 struct ctl_io_pool *pool; 3698 3699 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3700 M_NOWAIT | M_ZERO); 3701 if (pool == NULL) 3702 return (ENOMEM); 3703 3704 snprintf(pool->name, sizeof(pool->name), "CTL IO %s", pool_name); 3705 pool->ctl_softc = ctl_softc; 3706 pool->zone = uma_zsecond_create(pool->name, NULL, 3707 NULL, NULL, NULL, ctl_softc->io_zone); 3708 /* uma_prealloc(pool->zone, total_ctl_io); */ 3709 3710 *npool = pool; 3711#else 3712 *npool = ctl_softc->io_zone; 3713#endif 3714 return (0); 3715} 3716 3717void 3718ctl_pool_free(struct ctl_io_pool *pool) 3719{ 3720 3721 if (pool == NULL) 3722 return; 3723 3724#ifdef IO_POOLS 3725 uma_zdestroy(pool->zone); 3726 free(pool, M_CTL); 3727#endif 3728} 3729 3730union ctl_io * 3731ctl_alloc_io(void *pool_ref) 3732{ 3733 union ctl_io *io; 3734#ifdef IO_POOLS 3735 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3736 3737 io = uma_zalloc(pool->zone, M_WAITOK); 3738#else 3739 io = uma_zalloc((uma_zone_t)pool_ref, M_WAITOK); 3740#endif 3741 if (io != NULL) 3742 io->io_hdr.pool = pool_ref; 3743 return (io); 3744} 3745 3746union ctl_io * 3747ctl_alloc_io_nowait(void *pool_ref) 3748{ 3749 union ctl_io *io; 3750#ifdef IO_POOLS 3751 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3752 3753 io = uma_zalloc(pool->zone, M_NOWAIT); 3754#else 3755 io = uma_zalloc((uma_zone_t)pool_ref, M_NOWAIT); 3756#endif 3757 if (io != NULL) 3758 io->io_hdr.pool = pool_ref; 3759 return (io); 3760} 3761 3762void 3763ctl_free_io(union ctl_io *io) 3764{ 3765#ifdef IO_POOLS 3766 struct ctl_io_pool *pool; 3767#endif 3768 3769 if (io == NULL) 3770 return; 3771 3772#ifdef IO_POOLS 3773 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3774 uma_zfree(pool->zone, io); 3775#else 3776 uma_zfree((uma_zone_t)io->io_hdr.pool, io); 3777#endif 3778} 3779 3780void 3781ctl_zero_io(union ctl_io *io) 3782{ 3783 void *pool_ref; 3784 3785 if (io == NULL) 3786 return; 3787 3788 /* 3789 * May need to preserve linked list pointers at some point too. 3790 */ 3791 pool_ref = io->io_hdr.pool; 3792 memset(io, 0, sizeof(*io)); 3793 io->io_hdr.pool = pool_ref; 3794} 3795 3796/* 3797 * This routine is currently used for internal copies of ctl_ios that need 3798 * to persist for some reason after we've already returned status to the 3799 * FETD. (Thus the flag set.) 3800 * 3801 * XXX XXX 3802 * Note that this makes a blind copy of all fields in the ctl_io, except 3803 * for the pool reference. This includes any memory that has been 3804 * allocated! That memory will no longer be valid after done has been 3805 * called, so this would be VERY DANGEROUS for command that actually does 3806 * any reads or writes. Right now (11/7/2005), this is only used for immediate 3807 * start and stop commands, which don't transfer any data, so this is not a 3808 * problem. If it is used for anything else, the caller would also need to 3809 * allocate data buffer space and this routine would need to be modified to 3810 * copy the data buffer(s) as well. 3811 */ 3812void 3813ctl_copy_io(union ctl_io *src, union ctl_io *dest) 3814{ 3815 void *pool_ref; 3816 3817 if ((src == NULL) 3818 || (dest == NULL)) 3819 return; 3820 3821 /* 3822 * May need to preserve linked list pointers at some point too. 3823 */ 3824 pool_ref = dest->io_hdr.pool; 3825 3826 memcpy(dest, src, ctl_min(sizeof(*src), sizeof(*dest))); 3827 3828 dest->io_hdr.pool = pool_ref; 3829 /* 3830 * We need to know that this is an internal copy, and doesn't need 3831 * to get passed back to the FETD that allocated it. 3832 */ 3833 dest->io_hdr.flags |= CTL_FLAG_INT_COPY; 3834} 3835 3836static int 3837ctl_expand_number(const char *buf, uint64_t *num) 3838{ 3839 char *endptr; 3840 uint64_t number; 3841 unsigned shift; 3842 3843 number = strtoq(buf, &endptr, 0); 3844 3845 switch (tolower((unsigned char)*endptr)) { 3846 case 'e': 3847 shift = 60; 3848 break; 3849 case 'p': 3850 shift = 50; 3851 break; 3852 case 't': 3853 shift = 40; 3854 break; 3855 case 'g': 3856 shift = 30; 3857 break; 3858 case 'm': 3859 shift = 20; 3860 break; 3861 case 'k': 3862 shift = 10; 3863 break; 3864 case 'b': 3865 case '\0': /* No unit. */ 3866 *num = number; 3867 return (0); 3868 default: 3869 /* Unrecognized unit. */ 3870 return (-1); 3871 } 3872 3873 if ((number << shift) >> shift != number) { 3874 /* Overflow */ 3875 return (-1); 3876 } 3877 *num = number << shift; 3878 return (0); 3879} 3880 3881 3882/* 3883 * This routine could be used in the future to load default and/or saved 3884 * mode page parameters for a particuar lun. 3885 */ 3886static int 3887ctl_init_page_index(struct ctl_lun *lun) 3888{ 3889 int i; 3890 struct ctl_page_index *page_index; 3891 const char *value; 3892 uint64_t ival; 3893 3894 memcpy(&lun->mode_pages.index, page_index_template, 3895 sizeof(page_index_template)); 3896 3897 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 3898 3899 page_index = &lun->mode_pages.index[i]; 3900 /* 3901 * If this is a disk-only mode page, there's no point in 3902 * setting it up. For some pages, we have to have some 3903 * basic information about the disk in order to calculate the 3904 * mode page data. 3905 */ 3906 if ((lun->be_lun->lun_type != T_DIRECT) 3907 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 3908 continue; 3909 3910 switch (page_index->page_code & SMPH_PC_MASK) { 3911 case SMS_RW_ERROR_RECOVERY_PAGE: { 3912 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3913 panic("subpage is incorrect!"); 3914 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT], 3915 &rw_er_page_default, 3916 sizeof(rw_er_page_default)); 3917 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CHANGEABLE], 3918 &rw_er_page_changeable, 3919 sizeof(rw_er_page_changeable)); 3920 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_DEFAULT], 3921 &rw_er_page_default, 3922 sizeof(rw_er_page_default)); 3923 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_SAVED], 3924 &rw_er_page_default, 3925 sizeof(rw_er_page_default)); 3926 page_index->page_data = 3927 (uint8_t *)lun->mode_pages.rw_er_page; 3928 break; 3929 } 3930 case SMS_FORMAT_DEVICE_PAGE: { 3931 struct scsi_format_page *format_page; 3932 3933 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3934 panic("subpage is incorrect!"); 3935 3936 /* 3937 * Sectors per track are set above. Bytes per 3938 * sector need to be set here on a per-LUN basis. 3939 */ 3940 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 3941 &format_page_default, 3942 sizeof(format_page_default)); 3943 memcpy(&lun->mode_pages.format_page[ 3944 CTL_PAGE_CHANGEABLE], &format_page_changeable, 3945 sizeof(format_page_changeable)); 3946 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 3947 &format_page_default, 3948 sizeof(format_page_default)); 3949 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 3950 &format_page_default, 3951 sizeof(format_page_default)); 3952 3953 format_page = &lun->mode_pages.format_page[ 3954 CTL_PAGE_CURRENT]; 3955 scsi_ulto2b(lun->be_lun->blocksize, 3956 format_page->bytes_per_sector); 3957 3958 format_page = &lun->mode_pages.format_page[ 3959 CTL_PAGE_DEFAULT]; 3960 scsi_ulto2b(lun->be_lun->blocksize, 3961 format_page->bytes_per_sector); 3962 3963 format_page = &lun->mode_pages.format_page[ 3964 CTL_PAGE_SAVED]; 3965 scsi_ulto2b(lun->be_lun->blocksize, 3966 format_page->bytes_per_sector); 3967 3968 page_index->page_data = 3969 (uint8_t *)lun->mode_pages.format_page; 3970 break; 3971 } 3972 case SMS_RIGID_DISK_PAGE: { 3973 struct scsi_rigid_disk_page *rigid_disk_page; 3974 uint32_t sectors_per_cylinder; 3975 uint64_t cylinders; 3976#ifndef __XSCALE__ 3977 int shift; 3978#endif /* !__XSCALE__ */ 3979 3980 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3981 panic("invalid subpage value %d", 3982 page_index->subpage); 3983 3984 /* 3985 * Rotation rate and sectors per track are set 3986 * above. We calculate the cylinders here based on 3987 * capacity. Due to the number of heads and 3988 * sectors per track we're using, smaller arrays 3989 * may turn out to have 0 cylinders. Linux and 3990 * FreeBSD don't pay attention to these mode pages 3991 * to figure out capacity, but Solaris does. It 3992 * seems to deal with 0 cylinders just fine, and 3993 * works out a fake geometry based on the capacity. 3994 */ 3995 memcpy(&lun->mode_pages.rigid_disk_page[ 3996 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 3997 sizeof(rigid_disk_page_default)); 3998 memcpy(&lun->mode_pages.rigid_disk_page[ 3999 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4000 sizeof(rigid_disk_page_changeable)); 4001 4002 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4003 CTL_DEFAULT_HEADS; 4004 4005 /* 4006 * The divide method here will be more accurate, 4007 * probably, but results in floating point being 4008 * used in the kernel on i386 (__udivdi3()). On the 4009 * XScale, though, __udivdi3() is implemented in 4010 * software. 4011 * 4012 * The shift method for cylinder calculation is 4013 * accurate if sectors_per_cylinder is a power of 4014 * 2. Otherwise it might be slightly off -- you 4015 * might have a bit of a truncation problem. 4016 */ 4017#ifdef __XSCALE__ 4018 cylinders = (lun->be_lun->maxlba + 1) / 4019 sectors_per_cylinder; 4020#else 4021 for (shift = 31; shift > 0; shift--) { 4022 if (sectors_per_cylinder & (1 << shift)) 4023 break; 4024 } 4025 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4026#endif 4027 4028 /* 4029 * We've basically got 3 bytes, or 24 bits for the 4030 * cylinder size in the mode page. If we're over, 4031 * just round down to 2^24. 4032 */ 4033 if (cylinders > 0xffffff) 4034 cylinders = 0xffffff; 4035 4036 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4037 CTL_PAGE_DEFAULT]; 4038 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4039 4040 if ((value = ctl_get_opt(&lun->be_lun->options, 4041 "rpm")) != NULL) { 4042 scsi_ulto2b(strtol(value, NULL, 0), 4043 rigid_disk_page->rotation_rate); 4044 } 4045 4046 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_CURRENT], 4047 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4048 sizeof(rigid_disk_page_default)); 4049 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_SAVED], 4050 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4051 sizeof(rigid_disk_page_default)); 4052 4053 page_index->page_data = 4054 (uint8_t *)lun->mode_pages.rigid_disk_page; 4055 break; 4056 } 4057 case SMS_CACHING_PAGE: { 4058 struct scsi_caching_page *caching_page; 4059 4060 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4061 panic("invalid subpage value %d", 4062 page_index->subpage); 4063 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4064 &caching_page_default, 4065 sizeof(caching_page_default)); 4066 memcpy(&lun->mode_pages.caching_page[ 4067 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4068 sizeof(caching_page_changeable)); 4069 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4070 &caching_page_default, 4071 sizeof(caching_page_default)); 4072 caching_page = &lun->mode_pages.caching_page[ 4073 CTL_PAGE_SAVED]; 4074 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4075 if (value != NULL && strcmp(value, "off") == 0) 4076 caching_page->flags1 &= ~SCP_WCE; 4077 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4078 if (value != NULL && strcmp(value, "off") == 0) 4079 caching_page->flags1 |= SCP_RCD; 4080 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4081 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4082 sizeof(caching_page_default)); 4083 page_index->page_data = 4084 (uint8_t *)lun->mode_pages.caching_page; 4085 break; 4086 } 4087 case SMS_CONTROL_MODE_PAGE: { 4088 struct scsi_control_page *control_page; 4089 4090 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4091 panic("invalid subpage value %d", 4092 page_index->subpage); 4093 4094 memcpy(&lun->mode_pages.control_page[CTL_PAGE_DEFAULT], 4095 &control_page_default, 4096 sizeof(control_page_default)); 4097 memcpy(&lun->mode_pages.control_page[ 4098 CTL_PAGE_CHANGEABLE], &control_page_changeable, 4099 sizeof(control_page_changeable)); 4100 memcpy(&lun->mode_pages.control_page[CTL_PAGE_SAVED], 4101 &control_page_default, 4102 sizeof(control_page_default)); 4103 control_page = &lun->mode_pages.control_page[ 4104 CTL_PAGE_SAVED]; 4105 value = ctl_get_opt(&lun->be_lun->options, "reordering"); 4106 if (value != NULL && strcmp(value, "unrestricted") == 0) { 4107 control_page->queue_flags &= ~SCP_QUEUE_ALG_MASK; 4108 control_page->queue_flags |= SCP_QUEUE_ALG_UNRESTRICTED; 4109 } 4110 memcpy(&lun->mode_pages.control_page[CTL_PAGE_CURRENT], 4111 &lun->mode_pages.control_page[CTL_PAGE_SAVED], 4112 sizeof(control_page_default)); 4113 page_index->page_data = 4114 (uint8_t *)lun->mode_pages.control_page; 4115 break; 4116 4117 } 4118 case SMS_INFO_EXCEPTIONS_PAGE: { 4119 switch (page_index->subpage) { 4120 case SMS_SUBPAGE_PAGE_0: 4121 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_CURRENT], 4122 &ie_page_default, 4123 sizeof(ie_page_default)); 4124 memcpy(&lun->mode_pages.ie_page[ 4125 CTL_PAGE_CHANGEABLE], &ie_page_changeable, 4126 sizeof(ie_page_changeable)); 4127 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_DEFAULT], 4128 &ie_page_default, 4129 sizeof(ie_page_default)); 4130 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_SAVED], 4131 &ie_page_default, 4132 sizeof(ie_page_default)); 4133 page_index->page_data = 4134 (uint8_t *)lun->mode_pages.ie_page; 4135 break; 4136 case 0x02: { 4137 struct ctl_logical_block_provisioning_page *page; 4138 4139 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_DEFAULT], 4140 &lbp_page_default, 4141 sizeof(lbp_page_default)); 4142 memcpy(&lun->mode_pages.lbp_page[ 4143 CTL_PAGE_CHANGEABLE], &lbp_page_changeable, 4144 sizeof(lbp_page_changeable)); 4145 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4146 &lbp_page_default, 4147 sizeof(lbp_page_default)); 4148 page = &lun->mode_pages.lbp_page[CTL_PAGE_SAVED]; 4149 value = ctl_get_opt(&lun->be_lun->options, 4150 "avail-threshold"); 4151 if (value != NULL && 4152 ctl_expand_number(value, &ival) == 0) { 4153 page->descr[0].flags |= SLBPPD_ENABLED | 4154 SLBPPD_ARMING_DEC; 4155 if (lun->be_lun->blocksize) 4156 ival /= lun->be_lun->blocksize; 4157 else 4158 ival /= 512; 4159 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4160 page->descr[0].count); 4161 } 4162 value = ctl_get_opt(&lun->be_lun->options, 4163 "used-threshold"); 4164 if (value != NULL && 4165 ctl_expand_number(value, &ival) == 0) { 4166 page->descr[1].flags |= SLBPPD_ENABLED | 4167 SLBPPD_ARMING_INC; 4168 if (lun->be_lun->blocksize) 4169 ival /= lun->be_lun->blocksize; 4170 else 4171 ival /= 512; 4172 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4173 page->descr[1].count); 4174 } 4175 value = ctl_get_opt(&lun->be_lun->options, 4176 "pool-avail-threshold"); 4177 if (value != NULL && 4178 ctl_expand_number(value, &ival) == 0) { 4179 page->descr[2].flags |= SLBPPD_ENABLED | 4180 SLBPPD_ARMING_DEC; 4181 if (lun->be_lun->blocksize) 4182 ival /= lun->be_lun->blocksize; 4183 else 4184 ival /= 512; 4185 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4186 page->descr[2].count); 4187 } 4188 value = ctl_get_opt(&lun->be_lun->options, 4189 "pool-used-threshold"); 4190 if (value != NULL && 4191 ctl_expand_number(value, &ival) == 0) { 4192 page->descr[3].flags |= SLBPPD_ENABLED | 4193 SLBPPD_ARMING_INC; 4194 if (lun->be_lun->blocksize) 4195 ival /= lun->be_lun->blocksize; 4196 else 4197 ival /= 512; 4198 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4199 page->descr[3].count); 4200 } 4201 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_CURRENT], 4202 &lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4203 sizeof(lbp_page_default)); 4204 page_index->page_data = 4205 (uint8_t *)lun->mode_pages.lbp_page; 4206 }} 4207 break; 4208 } 4209 case SMS_VENDOR_SPECIFIC_PAGE:{ 4210 switch (page_index->subpage) { 4211 case DBGCNF_SUBPAGE_CODE: { 4212 struct copan_debugconf_subpage *current_page, 4213 *saved_page; 4214 4215 memcpy(&lun->mode_pages.debugconf_subpage[ 4216 CTL_PAGE_CURRENT], 4217 &debugconf_page_default, 4218 sizeof(debugconf_page_default)); 4219 memcpy(&lun->mode_pages.debugconf_subpage[ 4220 CTL_PAGE_CHANGEABLE], 4221 &debugconf_page_changeable, 4222 sizeof(debugconf_page_changeable)); 4223 memcpy(&lun->mode_pages.debugconf_subpage[ 4224 CTL_PAGE_DEFAULT], 4225 &debugconf_page_default, 4226 sizeof(debugconf_page_default)); 4227 memcpy(&lun->mode_pages.debugconf_subpage[ 4228 CTL_PAGE_SAVED], 4229 &debugconf_page_default, 4230 sizeof(debugconf_page_default)); 4231 page_index->page_data = 4232 (uint8_t *)lun->mode_pages.debugconf_subpage; 4233 4234 current_page = (struct copan_debugconf_subpage *) 4235 (page_index->page_data + 4236 (page_index->page_len * 4237 CTL_PAGE_CURRENT)); 4238 saved_page = (struct copan_debugconf_subpage *) 4239 (page_index->page_data + 4240 (page_index->page_len * 4241 CTL_PAGE_SAVED)); 4242 break; 4243 } 4244 default: 4245 panic("invalid subpage value %d", 4246 page_index->subpage); 4247 break; 4248 } 4249 break; 4250 } 4251 default: 4252 panic("invalid page value %d", 4253 page_index->page_code & SMPH_PC_MASK); 4254 break; 4255 } 4256 } 4257 4258 return (CTL_RETVAL_COMPLETE); 4259} 4260 4261static int 4262ctl_init_log_page_index(struct ctl_lun *lun) 4263{ 4264 struct ctl_page_index *page_index; 4265 int i, j, k, prev; 4266 4267 memcpy(&lun->log_pages.index, log_page_index_template, 4268 sizeof(log_page_index_template)); 4269 4270 prev = -1; 4271 for (i = 0, j = 0, k = 0; i < CTL_NUM_LOG_PAGES; i++) { 4272 4273 page_index = &lun->log_pages.index[i]; 4274 /* 4275 * If this is a disk-only mode page, there's no point in 4276 * setting it up. For some pages, we have to have some 4277 * basic information about the disk in order to calculate the 4278 * mode page data. 4279 */ 4280 if ((lun->be_lun->lun_type != T_DIRECT) 4281 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 4282 continue; 4283 4284 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING && 4285 ((lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) == 0 || 4286 lun->backend->lun_attr == NULL)) 4287 continue; 4288 4289 if (page_index->page_code != prev) { 4290 lun->log_pages.pages_page[j] = page_index->page_code; 4291 prev = page_index->page_code; 4292 j++; 4293 } 4294 lun->log_pages.subpages_page[k*2] = page_index->page_code; 4295 lun->log_pages.subpages_page[k*2+1] = page_index->subpage; 4296 k++; 4297 } 4298 lun->log_pages.index[0].page_data = &lun->log_pages.pages_page[0]; 4299 lun->log_pages.index[0].page_len = j; 4300 lun->log_pages.index[1].page_data = &lun->log_pages.subpages_page[0]; 4301 lun->log_pages.index[1].page_len = k * 2; 4302 lun->log_pages.index[2].page_data = &lun->log_pages.lbp_page[0]; 4303 lun->log_pages.index[2].page_len = 12*CTL_NUM_LBP_PARAMS; 4304 4305 return (CTL_RETVAL_COMPLETE); 4306} 4307 4308static int 4309hex2bin(const char *str, uint8_t *buf, int buf_size) 4310{ 4311 int i; 4312 u_char c; 4313 4314 memset(buf, 0, buf_size); 4315 while (isspace(str[0])) 4316 str++; 4317 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) 4318 str += 2; 4319 buf_size *= 2; 4320 for (i = 0; str[i] != 0 && i < buf_size; i++) { 4321 c = str[i]; 4322 if (isdigit(c)) 4323 c -= '0'; 4324 else if (isalpha(c)) 4325 c -= isupper(c) ? 'A' - 10 : 'a' - 10; 4326 else 4327 break; 4328 if (c >= 16) 4329 break; 4330 if ((i & 1) == 0) 4331 buf[i / 2] |= (c << 4); 4332 else 4333 buf[i / 2] |= c; 4334 } 4335 return ((i + 1) / 2); 4336} 4337 4338/* 4339 * LUN allocation. 4340 * 4341 * Requirements: 4342 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4343 * wants us to allocate the LUN and he can block. 4344 * - ctl_softc is always set 4345 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4346 * 4347 * Returns 0 for success, non-zero (errno) for failure. 4348 */ 4349static int 4350ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4351 struct ctl_be_lun *const be_lun, struct ctl_id target_id) 4352{ 4353 struct ctl_lun *nlun, *lun; 4354 struct ctl_port *port; 4355 struct scsi_vpd_id_descriptor *desc; 4356 struct scsi_vpd_id_t10 *t10id; 4357 const char *eui, *naa, *scsiname, *vendor, *value; 4358 int lun_number, i, lun_malloced; 4359 int devidlen, idlen1, idlen2 = 0, len; 4360 4361 if (be_lun == NULL) 4362 return (EINVAL); 4363 4364 /* 4365 * We currently only support Direct Access or Processor LUN types. 4366 */ 4367 switch (be_lun->lun_type) { 4368 case T_DIRECT: 4369 break; 4370 case T_PROCESSOR: 4371 break; 4372 case T_SEQUENTIAL: 4373 case T_CHANGER: 4374 default: 4375 be_lun->lun_config_status(be_lun->be_lun, 4376 CTL_LUN_CONFIG_FAILURE); 4377 break; 4378 } 4379 if (ctl_lun == NULL) { 4380 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4381 lun_malloced = 1; 4382 } else { 4383 lun_malloced = 0; 4384 lun = ctl_lun; 4385 } 4386 4387 memset(lun, 0, sizeof(*lun)); 4388 if (lun_malloced) 4389 lun->flags = CTL_LUN_MALLOCED; 4390 4391 /* Generate LUN ID. */ 4392 devidlen = max(CTL_DEVID_MIN_LEN, 4393 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4394 idlen1 = sizeof(*t10id) + devidlen; 4395 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4396 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4397 if (scsiname != NULL) { 4398 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4399 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4400 } 4401 eui = ctl_get_opt(&be_lun->options, "eui"); 4402 if (eui != NULL) { 4403 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4404 } 4405 naa = ctl_get_opt(&be_lun->options, "naa"); 4406 if (naa != NULL) { 4407 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4408 } 4409 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4410 M_CTL, M_WAITOK | M_ZERO); 4411 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4412 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4413 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4414 desc->length = idlen1; 4415 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4416 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4417 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4418 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4419 } else { 4420 strncpy(t10id->vendor, vendor, 4421 min(sizeof(t10id->vendor), strlen(vendor))); 4422 } 4423 strncpy((char *)t10id->vendor_spec_id, 4424 (char *)be_lun->device_id, devidlen); 4425 if (scsiname != NULL) { 4426 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4427 desc->length); 4428 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4429 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4430 SVPD_ID_TYPE_SCSI_NAME; 4431 desc->length = idlen2; 4432 strlcpy(desc->identifier, scsiname, idlen2); 4433 } 4434 if (eui != NULL) { 4435 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4436 desc->length); 4437 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4438 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4439 SVPD_ID_TYPE_EUI64; 4440 desc->length = hex2bin(eui, desc->identifier, 16); 4441 desc->length = desc->length > 12 ? 16 : 4442 (desc->length > 8 ? 12 : 8); 4443 len -= 16 - desc->length; 4444 } 4445 if (naa != NULL) { 4446 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4447 desc->length); 4448 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4449 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4450 SVPD_ID_TYPE_NAA; 4451 desc->length = hex2bin(naa, desc->identifier, 16); 4452 desc->length = desc->length > 8 ? 16 : 8; 4453 len -= 16 - desc->length; 4454 } 4455 lun->lun_devid->len = len; 4456 4457 mtx_lock(&ctl_softc->ctl_lock); 4458 /* 4459 * See if the caller requested a particular LUN number. If so, see 4460 * if it is available. Otherwise, allocate the first available LUN. 4461 */ 4462 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4463 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4464 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4465 mtx_unlock(&ctl_softc->ctl_lock); 4466 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4467 printf("ctl: requested LUN ID %d is higher " 4468 "than CTL_MAX_LUNS - 1 (%d)\n", 4469 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4470 } else { 4471 /* 4472 * XXX KDM return an error, or just assign 4473 * another LUN ID in this case?? 4474 */ 4475 printf("ctl: requested LUN ID %d is already " 4476 "in use\n", be_lun->req_lun_id); 4477 } 4478 if (lun->flags & CTL_LUN_MALLOCED) 4479 free(lun, M_CTL); 4480 be_lun->lun_config_status(be_lun->be_lun, 4481 CTL_LUN_CONFIG_FAILURE); 4482 return (ENOSPC); 4483 } 4484 lun_number = be_lun->req_lun_id; 4485 } else { 4486 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, CTL_MAX_LUNS); 4487 if (lun_number == -1) { 4488 mtx_unlock(&ctl_softc->ctl_lock); 4489 printf("ctl: can't allocate LUN on target %ju, out of " 4490 "LUNs\n", (uintmax_t)target_id.id); 4491 if (lun->flags & CTL_LUN_MALLOCED) 4492 free(lun, M_CTL); 4493 be_lun->lun_config_status(be_lun->be_lun, 4494 CTL_LUN_CONFIG_FAILURE); 4495 return (ENOSPC); 4496 } 4497 } 4498 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4499 4500 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4501 lun->target = target_id; 4502 lun->lun = lun_number; 4503 lun->be_lun = be_lun; 4504 /* 4505 * The processor LUN is always enabled. Disk LUNs come on line 4506 * disabled, and must be enabled by the backend. 4507 */ 4508 lun->flags |= CTL_LUN_DISABLED; 4509 lun->backend = be_lun->be; 4510 be_lun->ctl_lun = lun; 4511 be_lun->lun_id = lun_number; 4512 atomic_add_int(&be_lun->be->num_luns, 1); 4513 if (be_lun->flags & CTL_LUN_FLAG_OFFLINE) 4514 lun->flags |= CTL_LUN_OFFLINE; 4515 4516 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4517 lun->flags |= CTL_LUN_STOPPED; 4518 4519 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4520 lun->flags |= CTL_LUN_INOPERABLE; 4521 4522 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4523 lun->flags |= CTL_LUN_PRIMARY_SC; 4524 4525 value = ctl_get_opt(&be_lun->options, "readonly"); 4526 if (value != NULL && strcmp(value, "on") == 0) 4527 lun->flags |= CTL_LUN_READONLY; 4528 4529 lun->ctl_softc = ctl_softc; 4530 TAILQ_INIT(&lun->ooa_queue); 4531 TAILQ_INIT(&lun->blocked_queue); 4532 STAILQ_INIT(&lun->error_list); 4533 ctl_tpc_lun_init(lun); 4534 4535 /* 4536 * Initialize the mode and log page index. 4537 */ 4538 ctl_init_page_index(lun); 4539 ctl_init_log_page_index(lun); 4540 4541 /* 4542 * Set the poweron UA for all initiators on this LUN only. 4543 */ 4544 for (i = 0; i < CTL_MAX_INITIATORS; i++) 4545 lun->pending_ua[i] = CTL_UA_POWERON; 4546 4547 /* 4548 * Now, before we insert this lun on the lun list, set the lun 4549 * inventory changed UA for all other luns. 4550 */ 4551 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4552 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4553 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4554 } 4555 } 4556 4557 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4558 4559 ctl_softc->ctl_luns[lun_number] = lun; 4560 4561 ctl_softc->num_luns++; 4562 4563 /* Setup statistics gathering */ 4564 lun->stats.device_type = be_lun->lun_type; 4565 lun->stats.lun_number = lun_number; 4566 if (lun->stats.device_type == T_DIRECT) 4567 lun->stats.blocksize = be_lun->blocksize; 4568 else 4569 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4570 for (i = 0;i < CTL_MAX_PORTS;i++) 4571 lun->stats.ports[i].targ_port = i; 4572 4573 mtx_unlock(&ctl_softc->ctl_lock); 4574 4575 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4576 4577 /* 4578 * Run through each registered FETD and bring it online if it isn't 4579 * already. Enable the target ID if it hasn't been enabled, and 4580 * enable this particular LUN. 4581 */ 4582 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4583 int retval; 4584 4585 retval = port->lun_enable(port->targ_lun_arg, target_id,lun_number); 4586 if (retval != 0) { 4587 printf("ctl_alloc_lun: FETD %s port %d returned error " 4588 "%d for lun_enable on target %ju lun %d\n", 4589 port->port_name, port->targ_port, retval, 4590 (uintmax_t)target_id.id, lun_number); 4591 } else 4592 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4593 } 4594 return (0); 4595} 4596 4597/* 4598 * Delete a LUN. 4599 * Assumptions: 4600 * - LUN has already been marked invalid and any pending I/O has been taken 4601 * care of. 4602 */ 4603static int 4604ctl_free_lun(struct ctl_lun *lun) 4605{ 4606 struct ctl_softc *softc; 4607#if 0 4608 struct ctl_port *port; 4609#endif 4610 struct ctl_lun *nlun; 4611 int i; 4612 4613 softc = lun->ctl_softc; 4614 4615 mtx_assert(&softc->ctl_lock, MA_OWNED); 4616 4617 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4618 4619 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4620 4621 softc->ctl_luns[lun->lun] = NULL; 4622 4623 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4624 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4625 4626 softc->num_luns--; 4627 4628 /* 4629 * XXX KDM this scheme only works for a single target/multiple LUN 4630 * setup. It needs to be revamped for a multiple target scheme. 4631 * 4632 * XXX KDM this results in port->lun_disable() getting called twice, 4633 * once when ctl_disable_lun() is called, and a second time here. 4634 * We really need to re-think the LUN disable semantics. There 4635 * should probably be several steps/levels to LUN removal: 4636 * - disable 4637 * - invalidate 4638 * - free 4639 * 4640 * Right now we only have a disable method when communicating to 4641 * the front end ports, at least for individual LUNs. 4642 */ 4643#if 0 4644 STAILQ_FOREACH(port, &softc->port_list, links) { 4645 int retval; 4646 4647 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4648 lun->lun); 4649 if (retval != 0) { 4650 printf("ctl_free_lun: FETD %s port %d returned error " 4651 "%d for lun_disable on target %ju lun %jd\n", 4652 port->port_name, port->targ_port, retval, 4653 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4654 } 4655 4656 if (STAILQ_FIRST(&softc->lun_list) == NULL) { 4657 port->status &= ~CTL_PORT_STATUS_LUN_ONLINE; 4658 4659 retval = port->targ_disable(port->targ_lun_arg,lun->target); 4660 if (retval != 0) { 4661 printf("ctl_free_lun: FETD %s port %d " 4662 "returned error %d for targ_disable on " 4663 "target %ju\n", port->port_name, 4664 port->targ_port, retval, 4665 (uintmax_t)lun->target.id); 4666 } else 4667 port->status &= ~CTL_PORT_STATUS_TARG_ONLINE; 4668 4669 if ((port->status & CTL_PORT_STATUS_TARG_ONLINE) != 0) 4670 continue; 4671 4672#if 0 4673 port->port_offline(port->onoff_arg); 4674 port->status &= ~CTL_PORT_STATUS_ONLINE; 4675#endif 4676 } 4677 } 4678#endif 4679 4680 /* 4681 * Tell the backend to free resources, if this LUN has a backend. 4682 */ 4683 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4684 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4685 4686 ctl_tpc_lun_shutdown(lun); 4687 mtx_destroy(&lun->lun_lock); 4688 free(lun->lun_devid, M_CTL); 4689 free(lun->write_buffer, M_CTL); 4690 if (lun->flags & CTL_LUN_MALLOCED) 4691 free(lun, M_CTL); 4692 4693 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4694 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4695 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4696 } 4697 } 4698 4699 return (0); 4700} 4701 4702static void 4703ctl_create_lun(struct ctl_be_lun *be_lun) 4704{ 4705 struct ctl_softc *ctl_softc; 4706 4707 ctl_softc = control_softc; 4708 4709 /* 4710 * ctl_alloc_lun() should handle all potential failure cases. 4711 */ 4712 ctl_alloc_lun(ctl_softc, NULL, be_lun, ctl_softc->target); 4713} 4714 4715int 4716ctl_add_lun(struct ctl_be_lun *be_lun) 4717{ 4718 struct ctl_softc *ctl_softc = control_softc; 4719 4720 mtx_lock(&ctl_softc->ctl_lock); 4721 STAILQ_INSERT_TAIL(&ctl_softc->pending_lun_queue, be_lun, links); 4722 mtx_unlock(&ctl_softc->ctl_lock); 4723 wakeup(&ctl_softc->pending_lun_queue); 4724 4725 return (0); 4726} 4727 4728int 4729ctl_enable_lun(struct ctl_be_lun *be_lun) 4730{ 4731 struct ctl_softc *ctl_softc; 4732 struct ctl_port *port, *nport; 4733 struct ctl_lun *lun; 4734 int retval; 4735 4736 ctl_softc = control_softc; 4737 4738 lun = (struct ctl_lun *)be_lun->ctl_lun; 4739 4740 mtx_lock(&ctl_softc->ctl_lock); 4741 mtx_lock(&lun->lun_lock); 4742 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4743 /* 4744 * eh? Why did we get called if the LUN is already 4745 * enabled? 4746 */ 4747 mtx_unlock(&lun->lun_lock); 4748 mtx_unlock(&ctl_softc->ctl_lock); 4749 return (0); 4750 } 4751 lun->flags &= ~CTL_LUN_DISABLED; 4752 mtx_unlock(&lun->lun_lock); 4753 4754 for (port = STAILQ_FIRST(&ctl_softc->port_list); port != NULL; port = nport) { 4755 nport = STAILQ_NEXT(port, links); 4756 4757 /* 4758 * Drop the lock while we call the FETD's enable routine. 4759 * This can lead to a callback into CTL (at least in the 4760 * case of the internal initiator frontend. 4761 */ 4762 mtx_unlock(&ctl_softc->ctl_lock); 4763 retval = port->lun_enable(port->targ_lun_arg, lun->target,lun->lun); 4764 mtx_lock(&ctl_softc->ctl_lock); 4765 if (retval != 0) { 4766 printf("%s: FETD %s port %d returned error " 4767 "%d for lun_enable on target %ju lun %jd\n", 4768 __func__, port->port_name, port->targ_port, retval, 4769 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4770 } 4771#if 0 4772 else { 4773 /* NOTE: TODO: why does lun enable affect port status? */ 4774 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4775 } 4776#endif 4777 } 4778 4779 mtx_unlock(&ctl_softc->ctl_lock); 4780 4781 return (0); 4782} 4783 4784int 4785ctl_disable_lun(struct ctl_be_lun *be_lun) 4786{ 4787 struct ctl_softc *ctl_softc; 4788 struct ctl_port *port; 4789 struct ctl_lun *lun; 4790 int retval; 4791 4792 ctl_softc = control_softc; 4793 4794 lun = (struct ctl_lun *)be_lun->ctl_lun; 4795 4796 mtx_lock(&ctl_softc->ctl_lock); 4797 mtx_lock(&lun->lun_lock); 4798 if (lun->flags & CTL_LUN_DISABLED) { 4799 mtx_unlock(&lun->lun_lock); 4800 mtx_unlock(&ctl_softc->ctl_lock); 4801 return (0); 4802 } 4803 lun->flags |= CTL_LUN_DISABLED; 4804 mtx_unlock(&lun->lun_lock); 4805 4806 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4807 mtx_unlock(&ctl_softc->ctl_lock); 4808 /* 4809 * Drop the lock before we call the frontend's disable 4810 * routine, to avoid lock order reversals. 4811 * 4812 * XXX KDM what happens if the frontend list changes while 4813 * we're traversing it? It's unlikely, but should be handled. 4814 */ 4815 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4816 lun->lun); 4817 mtx_lock(&ctl_softc->ctl_lock); 4818 if (retval != 0) { 4819 printf("ctl_alloc_lun: FETD %s port %d returned error " 4820 "%d for lun_disable on target %ju lun %jd\n", 4821 port->port_name, port->targ_port, retval, 4822 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4823 } 4824 } 4825 4826 mtx_unlock(&ctl_softc->ctl_lock); 4827 4828 return (0); 4829} 4830 4831int 4832ctl_start_lun(struct ctl_be_lun *be_lun) 4833{ 4834 struct ctl_softc *ctl_softc; 4835 struct ctl_lun *lun; 4836 4837 ctl_softc = control_softc; 4838 4839 lun = (struct ctl_lun *)be_lun->ctl_lun; 4840 4841 mtx_lock(&lun->lun_lock); 4842 lun->flags &= ~CTL_LUN_STOPPED; 4843 mtx_unlock(&lun->lun_lock); 4844 4845 return (0); 4846} 4847 4848int 4849ctl_stop_lun(struct ctl_be_lun *be_lun) 4850{ 4851 struct ctl_softc *ctl_softc; 4852 struct ctl_lun *lun; 4853 4854 ctl_softc = control_softc; 4855 4856 lun = (struct ctl_lun *)be_lun->ctl_lun; 4857 4858 mtx_lock(&lun->lun_lock); 4859 lun->flags |= CTL_LUN_STOPPED; 4860 mtx_unlock(&lun->lun_lock); 4861 4862 return (0); 4863} 4864 4865int 4866ctl_lun_offline(struct ctl_be_lun *be_lun) 4867{ 4868 struct ctl_softc *ctl_softc; 4869 struct ctl_lun *lun; 4870 4871 ctl_softc = control_softc; 4872 4873 lun = (struct ctl_lun *)be_lun->ctl_lun; 4874 4875 mtx_lock(&lun->lun_lock); 4876 lun->flags |= CTL_LUN_OFFLINE; 4877 mtx_unlock(&lun->lun_lock); 4878 4879 return (0); 4880} 4881 4882int 4883ctl_lun_online(struct ctl_be_lun *be_lun) 4884{ 4885 struct ctl_softc *ctl_softc; 4886 struct ctl_lun *lun; 4887 4888 ctl_softc = control_softc; 4889 4890 lun = (struct ctl_lun *)be_lun->ctl_lun; 4891 4892 mtx_lock(&lun->lun_lock); 4893 lun->flags &= ~CTL_LUN_OFFLINE; 4894 mtx_unlock(&lun->lun_lock); 4895 4896 return (0); 4897} 4898 4899int 4900ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4901{ 4902 struct ctl_softc *ctl_softc; 4903 struct ctl_lun *lun; 4904 4905 ctl_softc = control_softc; 4906 4907 lun = (struct ctl_lun *)be_lun->ctl_lun; 4908 4909 mtx_lock(&lun->lun_lock); 4910 4911 /* 4912 * The LUN needs to be disabled before it can be marked invalid. 4913 */ 4914 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4915 mtx_unlock(&lun->lun_lock); 4916 return (-1); 4917 } 4918 /* 4919 * Mark the LUN invalid. 4920 */ 4921 lun->flags |= CTL_LUN_INVALID; 4922 4923 /* 4924 * If there is nothing in the OOA queue, go ahead and free the LUN. 4925 * If we have something in the OOA queue, we'll free it when the 4926 * last I/O completes. 4927 */ 4928 if (TAILQ_EMPTY(&lun->ooa_queue)) { 4929 mtx_unlock(&lun->lun_lock); 4930 mtx_lock(&ctl_softc->ctl_lock); 4931 ctl_free_lun(lun); 4932 mtx_unlock(&ctl_softc->ctl_lock); 4933 } else 4934 mtx_unlock(&lun->lun_lock); 4935 4936 return (0); 4937} 4938 4939int 4940ctl_lun_inoperable(struct ctl_be_lun *be_lun) 4941{ 4942 struct ctl_softc *ctl_softc; 4943 struct ctl_lun *lun; 4944 4945 ctl_softc = control_softc; 4946 lun = (struct ctl_lun *)be_lun->ctl_lun; 4947 4948 mtx_lock(&lun->lun_lock); 4949 lun->flags |= CTL_LUN_INOPERABLE; 4950 mtx_unlock(&lun->lun_lock); 4951 4952 return (0); 4953} 4954 4955int 4956ctl_lun_operable(struct ctl_be_lun *be_lun) 4957{ 4958 struct ctl_softc *ctl_softc; 4959 struct ctl_lun *lun; 4960 4961 ctl_softc = control_softc; 4962 lun = (struct ctl_lun *)be_lun->ctl_lun; 4963 4964 mtx_lock(&lun->lun_lock); 4965 lun->flags &= ~CTL_LUN_INOPERABLE; 4966 mtx_unlock(&lun->lun_lock); 4967 4968 return (0); 4969} 4970 4971void 4972ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 4973{ 4974 struct ctl_lun *lun; 4975 struct ctl_softc *softc; 4976 int i; 4977 4978 softc = control_softc; 4979 4980 lun = (struct ctl_lun *)be_lun->ctl_lun; 4981 4982 mtx_lock(&lun->lun_lock); 4983 4984 for (i = 0; i < CTL_MAX_INITIATORS; i++) 4985 lun->pending_ua[i] |= CTL_UA_CAPACITY_CHANGED; 4986 4987 mtx_unlock(&lun->lun_lock); 4988} 4989 4990/* 4991 * Backend "memory move is complete" callback for requests that never 4992 * make it down to say RAIDCore's configuration code. 4993 */ 4994int 4995ctl_config_move_done(union ctl_io *io) 4996{ 4997 int retval; 4998 4999 retval = CTL_RETVAL_COMPLETE; 5000 5001 5002 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 5003 /* 5004 * XXX KDM this shouldn't happen, but what if it does? 5005 */ 5006 if (io->io_hdr.io_type != CTL_IO_SCSI) 5007 panic("I/O type isn't CTL_IO_SCSI!"); 5008 5009 if ((io->io_hdr.port_status == 0) 5010 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5011 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)) 5012 io->io_hdr.status = CTL_SUCCESS; 5013 else if ((io->io_hdr.port_status != 0) 5014 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5015 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)){ 5016 /* 5017 * For hardware error sense keys, the sense key 5018 * specific value is defined to be a retry count, 5019 * but we use it to pass back an internal FETD 5020 * error code. XXX KDM Hopefully the FETD is only 5021 * using 16 bits for an error code, since that's 5022 * all the space we have in the sks field. 5023 */ 5024 ctl_set_internal_failure(&io->scsiio, 5025 /*sks_valid*/ 1, 5026 /*retry_count*/ 5027 io->io_hdr.port_status); 5028 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5029 free(io->scsiio.kern_data_ptr, M_CTL); 5030 ctl_done(io); 5031 goto bailout; 5032 } 5033 5034 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 5035 || ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 5036 || ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5037 /* 5038 * XXX KDM just assuming a single pointer here, and not a 5039 * S/G list. If we start using S/G lists for config data, 5040 * we'll need to know how to clean them up here as well. 5041 */ 5042 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5043 free(io->scsiio.kern_data_ptr, M_CTL); 5044 /* Hopefully the user has already set the status... */ 5045 ctl_done(io); 5046 } else { 5047 /* 5048 * XXX KDM now we need to continue data movement. Some 5049 * options: 5050 * - call ctl_scsiio() again? We don't do this for data 5051 * writes, because for those at least we know ahead of 5052 * time where the write will go and how long it is. For 5053 * config writes, though, that information is largely 5054 * contained within the write itself, thus we need to 5055 * parse out the data again. 5056 * 5057 * - Call some other function once the data is in? 5058 */ 5059 if (ctl_debug & CTL_DEBUG_CDB_DATA) 5060 ctl_data_print(io); 5061 5062 /* 5063 * XXX KDM call ctl_scsiio() again for now, and check flag 5064 * bits to see whether we're allocated or not. 5065 */ 5066 retval = ctl_scsiio(&io->scsiio); 5067 } 5068bailout: 5069 return (retval); 5070} 5071 5072/* 5073 * This gets called by a backend driver when it is done with a 5074 * data_submit method. 5075 */ 5076void 5077ctl_data_submit_done(union ctl_io *io) 5078{ 5079 /* 5080 * If the IO_CONT flag is set, we need to call the supplied 5081 * function to continue processing the I/O, instead of completing 5082 * the I/O just yet. 5083 * 5084 * If there is an error, though, we don't want to keep processing. 5085 * Instead, just send status back to the initiator. 5086 */ 5087 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5088 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5089 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5090 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5091 io->scsiio.io_cont(io); 5092 return; 5093 } 5094 ctl_done(io); 5095} 5096 5097/* 5098 * This gets called by a backend driver when it is done with a 5099 * configuration write. 5100 */ 5101void 5102ctl_config_write_done(union ctl_io *io) 5103{ 5104 uint8_t *buf; 5105 5106 /* 5107 * If the IO_CONT flag is set, we need to call the supplied 5108 * function to continue processing the I/O, instead of completing 5109 * the I/O just yet. 5110 * 5111 * If there is an error, though, we don't want to keep processing. 5112 * Instead, just send status back to the initiator. 5113 */ 5114 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5115 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5116 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5117 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5118 io->scsiio.io_cont(io); 5119 return; 5120 } 5121 /* 5122 * Since a configuration write can be done for commands that actually 5123 * have data allocated, like write buffer, and commands that have 5124 * no data, like start/stop unit, we need to check here. 5125 */ 5126 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5127 buf = io->scsiio.kern_data_ptr; 5128 else 5129 buf = NULL; 5130 ctl_done(io); 5131 if (buf) 5132 free(buf, M_CTL); 5133} 5134 5135/* 5136 * SCSI release command. 5137 */ 5138int 5139ctl_scsi_release(struct ctl_scsiio *ctsio) 5140{ 5141 int length, longid, thirdparty_id, resv_id; 5142 struct ctl_softc *ctl_softc; 5143 struct ctl_lun *lun; 5144 uint32_t residx; 5145 5146 length = 0; 5147 resv_id = 0; 5148 5149 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5150 5151 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5152 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5153 ctl_softc = control_softc; 5154 5155 switch (ctsio->cdb[0]) { 5156 case RELEASE_10: { 5157 struct scsi_release_10 *cdb; 5158 5159 cdb = (struct scsi_release_10 *)ctsio->cdb; 5160 5161 if (cdb->byte2 & SR10_LONGID) 5162 longid = 1; 5163 else 5164 thirdparty_id = cdb->thirdparty_id; 5165 5166 resv_id = cdb->resv_id; 5167 length = scsi_2btoul(cdb->length); 5168 break; 5169 } 5170 } 5171 5172 5173 /* 5174 * XXX KDM right now, we only support LUN reservation. We don't 5175 * support 3rd party reservations, or extent reservations, which 5176 * might actually need the parameter list. If we've gotten this 5177 * far, we've got a LUN reservation. Anything else got kicked out 5178 * above. So, according to SPC, ignore the length. 5179 */ 5180 length = 0; 5181 5182 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5183 && (length > 0)) { 5184 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5185 ctsio->kern_data_len = length; 5186 ctsio->kern_total_len = length; 5187 ctsio->kern_data_resid = 0; 5188 ctsio->kern_rel_offset = 0; 5189 ctsio->kern_sg_entries = 0; 5190 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5191 ctsio->be_move_done = ctl_config_move_done; 5192 ctl_datamove((union ctl_io *)ctsio); 5193 5194 return (CTL_RETVAL_COMPLETE); 5195 } 5196 5197 if (length > 0) 5198 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5199 5200 mtx_lock(&lun->lun_lock); 5201 5202 /* 5203 * According to SPC, it is not an error for an intiator to attempt 5204 * to release a reservation on a LUN that isn't reserved, or that 5205 * is reserved by another initiator. The reservation can only be 5206 * released, though, by the initiator who made it or by one of 5207 * several reset type events. 5208 */ 5209 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5210 lun->flags &= ~CTL_LUN_RESERVED; 5211 5212 mtx_unlock(&lun->lun_lock); 5213 5214 ctl_set_success(ctsio); 5215 5216 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5217 free(ctsio->kern_data_ptr, M_CTL); 5218 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5219 } 5220 5221 ctl_done((union ctl_io *)ctsio); 5222 return (CTL_RETVAL_COMPLETE); 5223} 5224 5225int 5226ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5227{ 5228 int extent, thirdparty, longid; 5229 int resv_id, length; 5230 uint64_t thirdparty_id; 5231 struct ctl_softc *ctl_softc; 5232 struct ctl_lun *lun; 5233 uint32_t residx; 5234 5235 extent = 0; 5236 thirdparty = 0; 5237 longid = 0; 5238 resv_id = 0; 5239 length = 0; 5240 thirdparty_id = 0; 5241 5242 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5243 5244 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5245 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5246 ctl_softc = control_softc; 5247 5248 switch (ctsio->cdb[0]) { 5249 case RESERVE_10: { 5250 struct scsi_reserve_10 *cdb; 5251 5252 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 5253 5254 if (cdb->byte2 & SR10_LONGID) 5255 longid = 1; 5256 else 5257 thirdparty_id = cdb->thirdparty_id; 5258 5259 resv_id = cdb->resv_id; 5260 length = scsi_2btoul(cdb->length); 5261 break; 5262 } 5263 } 5264 5265 /* 5266 * XXX KDM right now, we only support LUN reservation. We don't 5267 * support 3rd party reservations, or extent reservations, which 5268 * might actually need the parameter list. If we've gotten this 5269 * far, we've got a LUN reservation. Anything else got kicked out 5270 * above. So, according to SPC, ignore the length. 5271 */ 5272 length = 0; 5273 5274 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5275 && (length > 0)) { 5276 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5277 ctsio->kern_data_len = length; 5278 ctsio->kern_total_len = length; 5279 ctsio->kern_data_resid = 0; 5280 ctsio->kern_rel_offset = 0; 5281 ctsio->kern_sg_entries = 0; 5282 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5283 ctsio->be_move_done = ctl_config_move_done; 5284 ctl_datamove((union ctl_io *)ctsio); 5285 5286 return (CTL_RETVAL_COMPLETE); 5287 } 5288 5289 if (length > 0) 5290 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5291 5292 mtx_lock(&lun->lun_lock); 5293 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5294 ctl_set_reservation_conflict(ctsio); 5295 goto bailout; 5296 } 5297 5298 lun->flags |= CTL_LUN_RESERVED; 5299 lun->res_idx = residx; 5300 5301 ctl_set_success(ctsio); 5302 5303bailout: 5304 mtx_unlock(&lun->lun_lock); 5305 5306 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5307 free(ctsio->kern_data_ptr, M_CTL); 5308 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5309 } 5310 5311 ctl_done((union ctl_io *)ctsio); 5312 return (CTL_RETVAL_COMPLETE); 5313} 5314 5315int 5316ctl_start_stop(struct ctl_scsiio *ctsio) 5317{ 5318 struct scsi_start_stop_unit *cdb; 5319 struct ctl_lun *lun; 5320 struct ctl_softc *ctl_softc; 5321 int retval; 5322 5323 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5324 5325 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5326 ctl_softc = control_softc; 5327 retval = 0; 5328 5329 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5330 5331 /* 5332 * XXX KDM 5333 * We don't support the immediate bit on a stop unit. In order to 5334 * do that, we would need to code up a way to know that a stop is 5335 * pending, and hold off any new commands until it completes, one 5336 * way or another. Then we could accept or reject those commands 5337 * depending on its status. We would almost need to do the reverse 5338 * of what we do below for an immediate start -- return the copy of 5339 * the ctl_io to the FETD with status to send to the host (and to 5340 * free the copy!) and then free the original I/O once the stop 5341 * actually completes. That way, the OOA queue mechanism can work 5342 * to block commands that shouldn't proceed. Another alternative 5343 * would be to put the copy in the queue in place of the original, 5344 * and return the original back to the caller. That could be 5345 * slightly safer.. 5346 */ 5347 if ((cdb->byte2 & SSS_IMMED) 5348 && ((cdb->how & SSS_START) == 0)) { 5349 ctl_set_invalid_field(ctsio, 5350 /*sks_valid*/ 1, 5351 /*command*/ 1, 5352 /*field*/ 1, 5353 /*bit_valid*/ 1, 5354 /*bit*/ 0); 5355 ctl_done((union ctl_io *)ctsio); 5356 return (CTL_RETVAL_COMPLETE); 5357 } 5358 5359 if ((lun->flags & CTL_LUN_PR_RESERVED) 5360 && ((cdb->how & SSS_START)==0)) { 5361 uint32_t residx; 5362 5363 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5364 if (lun->pr_keys[residx] == 0 5365 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5366 5367 ctl_set_reservation_conflict(ctsio); 5368 ctl_done((union ctl_io *)ctsio); 5369 return (CTL_RETVAL_COMPLETE); 5370 } 5371 } 5372 5373 /* 5374 * If there is no backend on this device, we can't start or stop 5375 * it. In theory we shouldn't get any start/stop commands in the 5376 * first place at this level if the LUN doesn't have a backend. 5377 * That should get stopped by the command decode code. 5378 */ 5379 if (lun->backend == NULL) { 5380 ctl_set_invalid_opcode(ctsio); 5381 ctl_done((union ctl_io *)ctsio); 5382 return (CTL_RETVAL_COMPLETE); 5383 } 5384 5385 /* 5386 * XXX KDM Copan-specific offline behavior. 5387 * Figure out a reasonable way to port this? 5388 */ 5389#ifdef NEEDTOPORT 5390 mtx_lock(&lun->lun_lock); 5391 5392 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5393 && (lun->flags & CTL_LUN_OFFLINE)) { 5394 /* 5395 * If the LUN is offline, and the on/offline bit isn't set, 5396 * reject the start or stop. Otherwise, let it through. 5397 */ 5398 mtx_unlock(&lun->lun_lock); 5399 ctl_set_lun_not_ready(ctsio); 5400 ctl_done((union ctl_io *)ctsio); 5401 } else { 5402 mtx_unlock(&lun->lun_lock); 5403#endif /* NEEDTOPORT */ 5404 /* 5405 * This could be a start or a stop when we're online, 5406 * or a stop/offline or start/online. A start or stop when 5407 * we're offline is covered in the case above. 5408 */ 5409 /* 5410 * In the non-immediate case, we send the request to 5411 * the backend and return status to the user when 5412 * it is done. 5413 * 5414 * In the immediate case, we allocate a new ctl_io 5415 * to hold a copy of the request, and send that to 5416 * the backend. We then set good status on the 5417 * user's request and return it immediately. 5418 */ 5419 if (cdb->byte2 & SSS_IMMED) { 5420 union ctl_io *new_io; 5421 5422 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5423 ctl_copy_io((union ctl_io *)ctsio, new_io); 5424 retval = lun->backend->config_write(new_io); 5425 ctl_set_success(ctsio); 5426 ctl_done((union ctl_io *)ctsio); 5427 } else { 5428 retval = lun->backend->config_write( 5429 (union ctl_io *)ctsio); 5430 } 5431#ifdef NEEDTOPORT 5432 } 5433#endif 5434 return (retval); 5435} 5436 5437/* 5438 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5439 * we don't really do anything with the LBA and length fields if the user 5440 * passes them in. Instead we'll just flush out the cache for the entire 5441 * LUN. 5442 */ 5443int 5444ctl_sync_cache(struct ctl_scsiio *ctsio) 5445{ 5446 struct ctl_lun *lun; 5447 struct ctl_softc *ctl_softc; 5448 uint64_t starting_lba; 5449 uint32_t block_count; 5450 int retval; 5451 5452 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5453 5454 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5455 ctl_softc = control_softc; 5456 retval = 0; 5457 5458 switch (ctsio->cdb[0]) { 5459 case SYNCHRONIZE_CACHE: { 5460 struct scsi_sync_cache *cdb; 5461 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5462 5463 starting_lba = scsi_4btoul(cdb->begin_lba); 5464 block_count = scsi_2btoul(cdb->lb_count); 5465 break; 5466 } 5467 case SYNCHRONIZE_CACHE_16: { 5468 struct scsi_sync_cache_16 *cdb; 5469 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5470 5471 starting_lba = scsi_8btou64(cdb->begin_lba); 5472 block_count = scsi_4btoul(cdb->lb_count); 5473 break; 5474 } 5475 default: 5476 ctl_set_invalid_opcode(ctsio); 5477 ctl_done((union ctl_io *)ctsio); 5478 goto bailout; 5479 break; /* NOTREACHED */ 5480 } 5481 5482 /* 5483 * We check the LBA and length, but don't do anything with them. 5484 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5485 * get flushed. This check will just help satisfy anyone who wants 5486 * to see an error for an out of range LBA. 5487 */ 5488 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5489 ctl_set_lba_out_of_range(ctsio); 5490 ctl_done((union ctl_io *)ctsio); 5491 goto bailout; 5492 } 5493 5494 /* 5495 * If this LUN has no backend, we can't flush the cache anyway. 5496 */ 5497 if (lun->backend == NULL) { 5498 ctl_set_invalid_opcode(ctsio); 5499 ctl_done((union ctl_io *)ctsio); 5500 goto bailout; 5501 } 5502 5503 /* 5504 * Check to see whether we're configured to send the SYNCHRONIZE 5505 * CACHE command directly to the back end. 5506 */ 5507 mtx_lock(&lun->lun_lock); 5508 if ((ctl_softc->flags & CTL_FLAG_REAL_SYNC) 5509 && (++(lun->sync_count) >= lun->sync_interval)) { 5510 lun->sync_count = 0; 5511 mtx_unlock(&lun->lun_lock); 5512 retval = lun->backend->config_write((union ctl_io *)ctsio); 5513 } else { 5514 mtx_unlock(&lun->lun_lock); 5515 ctl_set_success(ctsio); 5516 ctl_done((union ctl_io *)ctsio); 5517 } 5518 5519bailout: 5520 5521 return (retval); 5522} 5523 5524int 5525ctl_format(struct ctl_scsiio *ctsio) 5526{ 5527 struct scsi_format *cdb; 5528 struct ctl_lun *lun; 5529 struct ctl_softc *ctl_softc; 5530 int length, defect_list_len; 5531 5532 CTL_DEBUG_PRINT(("ctl_format\n")); 5533 5534 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5535 ctl_softc = control_softc; 5536 5537 cdb = (struct scsi_format *)ctsio->cdb; 5538 5539 length = 0; 5540 if (cdb->byte2 & SF_FMTDATA) { 5541 if (cdb->byte2 & SF_LONGLIST) 5542 length = sizeof(struct scsi_format_header_long); 5543 else 5544 length = sizeof(struct scsi_format_header_short); 5545 } 5546 5547 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5548 && (length > 0)) { 5549 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5550 ctsio->kern_data_len = length; 5551 ctsio->kern_total_len = length; 5552 ctsio->kern_data_resid = 0; 5553 ctsio->kern_rel_offset = 0; 5554 ctsio->kern_sg_entries = 0; 5555 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5556 ctsio->be_move_done = ctl_config_move_done; 5557 ctl_datamove((union ctl_io *)ctsio); 5558 5559 return (CTL_RETVAL_COMPLETE); 5560 } 5561 5562 defect_list_len = 0; 5563 5564 if (cdb->byte2 & SF_FMTDATA) { 5565 if (cdb->byte2 & SF_LONGLIST) { 5566 struct scsi_format_header_long *header; 5567 5568 header = (struct scsi_format_header_long *) 5569 ctsio->kern_data_ptr; 5570 5571 defect_list_len = scsi_4btoul(header->defect_list_len); 5572 if (defect_list_len != 0) { 5573 ctl_set_invalid_field(ctsio, 5574 /*sks_valid*/ 1, 5575 /*command*/ 0, 5576 /*field*/ 2, 5577 /*bit_valid*/ 0, 5578 /*bit*/ 0); 5579 goto bailout; 5580 } 5581 } else { 5582 struct scsi_format_header_short *header; 5583 5584 header = (struct scsi_format_header_short *) 5585 ctsio->kern_data_ptr; 5586 5587 defect_list_len = scsi_2btoul(header->defect_list_len); 5588 if (defect_list_len != 0) { 5589 ctl_set_invalid_field(ctsio, 5590 /*sks_valid*/ 1, 5591 /*command*/ 0, 5592 /*field*/ 2, 5593 /*bit_valid*/ 0, 5594 /*bit*/ 0); 5595 goto bailout; 5596 } 5597 } 5598 } 5599 5600 /* 5601 * The format command will clear out the "Medium format corrupted" 5602 * status if set by the configuration code. That status is really 5603 * just a way to notify the host that we have lost the media, and 5604 * get them to issue a command that will basically make them think 5605 * they're blowing away the media. 5606 */ 5607 mtx_lock(&lun->lun_lock); 5608 lun->flags &= ~CTL_LUN_INOPERABLE; 5609 mtx_unlock(&lun->lun_lock); 5610 5611 ctl_set_success(ctsio); 5612bailout: 5613 5614 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5615 free(ctsio->kern_data_ptr, M_CTL); 5616 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5617 } 5618 5619 ctl_done((union ctl_io *)ctsio); 5620 return (CTL_RETVAL_COMPLETE); 5621} 5622 5623int 5624ctl_read_buffer(struct ctl_scsiio *ctsio) 5625{ 5626 struct scsi_read_buffer *cdb; 5627 struct ctl_lun *lun; 5628 int buffer_offset, len; 5629 static uint8_t descr[4]; 5630 static uint8_t echo_descr[4] = { 0 }; 5631 5632 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5633 5634 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5635 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5636 5637 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA && 5638 (cdb->byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5639 (cdb->byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5640 ctl_set_invalid_field(ctsio, 5641 /*sks_valid*/ 1, 5642 /*command*/ 1, 5643 /*field*/ 1, 5644 /*bit_valid*/ 1, 5645 /*bit*/ 4); 5646 ctl_done((union ctl_io *)ctsio); 5647 return (CTL_RETVAL_COMPLETE); 5648 } 5649 5650 len = scsi_3btoul(cdb->length); 5651 buffer_offset = scsi_3btoul(cdb->offset); 5652 5653 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5654 ctl_set_invalid_field(ctsio, 5655 /*sks_valid*/ 1, 5656 /*command*/ 1, 5657 /*field*/ 6, 5658 /*bit_valid*/ 0, 5659 /*bit*/ 0); 5660 ctl_done((union ctl_io *)ctsio); 5661 return (CTL_RETVAL_COMPLETE); 5662 } 5663 5664 if ((cdb->byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5665 descr[0] = 0; 5666 scsi_ulto3b(CTL_WRITE_BUFFER_SIZE, &descr[1]); 5667 ctsio->kern_data_ptr = descr; 5668 len = min(len, sizeof(descr)); 5669 } else if ((cdb->byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5670 ctsio->kern_data_ptr = echo_descr; 5671 len = min(len, sizeof(echo_descr)); 5672 } else { 5673 if (lun->write_buffer == NULL) { 5674 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5675 M_CTL, M_WAITOK); 5676 } 5677 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5678 } 5679 ctsio->kern_data_len = len; 5680 ctsio->kern_total_len = len; 5681 ctsio->kern_data_resid = 0; 5682 ctsio->kern_rel_offset = 0; 5683 ctsio->kern_sg_entries = 0; 5684 ctsio->be_move_done = ctl_config_move_done; 5685 ctl_datamove((union ctl_io *)ctsio); 5686 5687 return (CTL_RETVAL_COMPLETE); 5688} 5689 5690int 5691ctl_write_buffer(struct ctl_scsiio *ctsio) 5692{ 5693 struct scsi_write_buffer *cdb; 5694 struct ctl_lun *lun; 5695 int buffer_offset, len; 5696 5697 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5698 5699 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5700 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5701 5702 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5703 ctl_set_invalid_field(ctsio, 5704 /*sks_valid*/ 1, 5705 /*command*/ 1, 5706 /*field*/ 1, 5707 /*bit_valid*/ 1, 5708 /*bit*/ 4); 5709 ctl_done((union ctl_io *)ctsio); 5710 return (CTL_RETVAL_COMPLETE); 5711 } 5712 5713 len = scsi_3btoul(cdb->length); 5714 buffer_offset = scsi_3btoul(cdb->offset); 5715 5716 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5717 ctl_set_invalid_field(ctsio, 5718 /*sks_valid*/ 1, 5719 /*command*/ 1, 5720 /*field*/ 6, 5721 /*bit_valid*/ 0, 5722 /*bit*/ 0); 5723 ctl_done((union ctl_io *)ctsio); 5724 return (CTL_RETVAL_COMPLETE); 5725 } 5726 5727 /* 5728 * If we've got a kernel request that hasn't been malloced yet, 5729 * malloc it and tell the caller the data buffer is here. 5730 */ 5731 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5732 if (lun->write_buffer == NULL) { 5733 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5734 M_CTL, M_WAITOK); 5735 } 5736 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5737 ctsio->kern_data_len = len; 5738 ctsio->kern_total_len = len; 5739 ctsio->kern_data_resid = 0; 5740 ctsio->kern_rel_offset = 0; 5741 ctsio->kern_sg_entries = 0; 5742 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5743 ctsio->be_move_done = ctl_config_move_done; 5744 ctl_datamove((union ctl_io *)ctsio); 5745 5746 return (CTL_RETVAL_COMPLETE); 5747 } 5748 5749 ctl_done((union ctl_io *)ctsio); 5750 5751 return (CTL_RETVAL_COMPLETE); 5752} 5753 5754int 5755ctl_write_same(struct ctl_scsiio *ctsio) 5756{ 5757 struct ctl_lun *lun; 5758 struct ctl_lba_len_flags *lbalen; 5759 uint64_t lba; 5760 uint32_t num_blocks; 5761 int len, retval; 5762 uint8_t byte2; 5763 5764 retval = CTL_RETVAL_COMPLETE; 5765 5766 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5767 5768 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5769 5770 switch (ctsio->cdb[0]) { 5771 case WRITE_SAME_10: { 5772 struct scsi_write_same_10 *cdb; 5773 5774 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5775 5776 lba = scsi_4btoul(cdb->addr); 5777 num_blocks = scsi_2btoul(cdb->length); 5778 byte2 = cdb->byte2; 5779 break; 5780 } 5781 case WRITE_SAME_16: { 5782 struct scsi_write_same_16 *cdb; 5783 5784 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5785 5786 lba = scsi_8btou64(cdb->addr); 5787 num_blocks = scsi_4btoul(cdb->length); 5788 byte2 = cdb->byte2; 5789 break; 5790 } 5791 default: 5792 /* 5793 * We got a command we don't support. This shouldn't 5794 * happen, commands should be filtered out above us. 5795 */ 5796 ctl_set_invalid_opcode(ctsio); 5797 ctl_done((union ctl_io *)ctsio); 5798 5799 return (CTL_RETVAL_COMPLETE); 5800 break; /* NOTREACHED */ 5801 } 5802 5803 /* NDOB and ANCHOR flags can be used only together with UNMAP */ 5804 if ((byte2 & SWS_UNMAP) == 0 && 5805 (byte2 & (SWS_NDOB | SWS_ANCHOR)) != 0) { 5806 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5807 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5808 ctl_done((union ctl_io *)ctsio); 5809 return (CTL_RETVAL_COMPLETE); 5810 } 5811 5812 /* 5813 * The first check is to make sure we're in bounds, the second 5814 * check is to catch wrap-around problems. If the lba + num blocks 5815 * is less than the lba, then we've wrapped around and the block 5816 * range is invalid anyway. 5817 */ 5818 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5819 || ((lba + num_blocks) < lba)) { 5820 ctl_set_lba_out_of_range(ctsio); 5821 ctl_done((union ctl_io *)ctsio); 5822 return (CTL_RETVAL_COMPLETE); 5823 } 5824 5825 /* Zero number of blocks means "to the last logical block" */ 5826 if (num_blocks == 0) { 5827 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5828 ctl_set_invalid_field(ctsio, 5829 /*sks_valid*/ 0, 5830 /*command*/ 1, 5831 /*field*/ 0, 5832 /*bit_valid*/ 0, 5833 /*bit*/ 0); 5834 ctl_done((union ctl_io *)ctsio); 5835 return (CTL_RETVAL_COMPLETE); 5836 } 5837 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5838 } 5839 5840 len = lun->be_lun->blocksize; 5841 5842 /* 5843 * If we've got a kernel request that hasn't been malloced yet, 5844 * malloc it and tell the caller the data buffer is here. 5845 */ 5846 if ((byte2 & SWS_NDOB) == 0 && 5847 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5848 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5849 ctsio->kern_data_len = len; 5850 ctsio->kern_total_len = len; 5851 ctsio->kern_data_resid = 0; 5852 ctsio->kern_rel_offset = 0; 5853 ctsio->kern_sg_entries = 0; 5854 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5855 ctsio->be_move_done = ctl_config_move_done; 5856 ctl_datamove((union ctl_io *)ctsio); 5857 5858 return (CTL_RETVAL_COMPLETE); 5859 } 5860 5861 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5862 lbalen->lba = lba; 5863 lbalen->len = num_blocks; 5864 lbalen->flags = byte2; 5865 retval = lun->backend->config_write((union ctl_io *)ctsio); 5866 5867 return (retval); 5868} 5869 5870int 5871ctl_unmap(struct ctl_scsiio *ctsio) 5872{ 5873 struct ctl_lun *lun; 5874 struct scsi_unmap *cdb; 5875 struct ctl_ptr_len_flags *ptrlen; 5876 struct scsi_unmap_header *hdr; 5877 struct scsi_unmap_desc *buf, *end, *endnz, *range; 5878 uint64_t lba; 5879 uint32_t num_blocks; 5880 int len, retval; 5881 uint8_t byte2; 5882 5883 retval = CTL_RETVAL_COMPLETE; 5884 5885 CTL_DEBUG_PRINT(("ctl_unmap\n")); 5886 5887 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5888 cdb = (struct scsi_unmap *)ctsio->cdb; 5889 5890 len = scsi_2btoul(cdb->length); 5891 byte2 = cdb->byte2; 5892 5893 /* 5894 * If we've got a kernel request that hasn't been malloced yet, 5895 * malloc it and tell the caller the data buffer is here. 5896 */ 5897 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5898 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5899 ctsio->kern_data_len = len; 5900 ctsio->kern_total_len = len; 5901 ctsio->kern_data_resid = 0; 5902 ctsio->kern_rel_offset = 0; 5903 ctsio->kern_sg_entries = 0; 5904 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5905 ctsio->be_move_done = ctl_config_move_done; 5906 ctl_datamove((union ctl_io *)ctsio); 5907 5908 return (CTL_RETVAL_COMPLETE); 5909 } 5910 5911 len = ctsio->kern_total_len - ctsio->kern_data_resid; 5912 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 5913 if (len < sizeof (*hdr) || 5914 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 5915 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 5916 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 5917 ctl_set_invalid_field(ctsio, 5918 /*sks_valid*/ 0, 5919 /*command*/ 0, 5920 /*field*/ 0, 5921 /*bit_valid*/ 0, 5922 /*bit*/ 0); 5923 ctl_done((union ctl_io *)ctsio); 5924 return (CTL_RETVAL_COMPLETE); 5925 } 5926 len = scsi_2btoul(hdr->desc_length); 5927 buf = (struct scsi_unmap_desc *)(hdr + 1); 5928 end = buf + len / sizeof(*buf); 5929 5930 endnz = buf; 5931 for (range = buf; range < end; range++) { 5932 lba = scsi_8btou64(range->lba); 5933 num_blocks = scsi_4btoul(range->length); 5934 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5935 || ((lba + num_blocks) < lba)) { 5936 ctl_set_lba_out_of_range(ctsio); 5937 ctl_done((union ctl_io *)ctsio); 5938 return (CTL_RETVAL_COMPLETE); 5939 } 5940 if (num_blocks != 0) 5941 endnz = range + 1; 5942 } 5943 5944 /* 5945 * Block backend can not handle zero last range. 5946 * Filter it out and return if there is nothing left. 5947 */ 5948 len = (uint8_t *)endnz - (uint8_t *)buf; 5949 if (len == 0) { 5950 ctl_set_success(ctsio); 5951 ctl_done((union ctl_io *)ctsio); 5952 return (CTL_RETVAL_COMPLETE); 5953 } 5954 5955 mtx_lock(&lun->lun_lock); 5956 ptrlen = (struct ctl_ptr_len_flags *) 5957 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5958 ptrlen->ptr = (void *)buf; 5959 ptrlen->len = len; 5960 ptrlen->flags = byte2; 5961 ctl_check_blocked(lun); 5962 mtx_unlock(&lun->lun_lock); 5963 5964 retval = lun->backend->config_write((union ctl_io *)ctsio); 5965 return (retval); 5966} 5967 5968/* 5969 * Note that this function currently doesn't actually do anything inside 5970 * CTL to enforce things if the DQue bit is turned on. 5971 * 5972 * Also note that this function can't be used in the default case, because 5973 * the DQue bit isn't set in the changeable mask for the control mode page 5974 * anyway. This is just here as an example for how to implement a page 5975 * handler, and a placeholder in case we want to allow the user to turn 5976 * tagged queueing on and off. 5977 * 5978 * The D_SENSE bit handling is functional, however, and will turn 5979 * descriptor sense on and off for a given LUN. 5980 */ 5981int 5982ctl_control_page_handler(struct ctl_scsiio *ctsio, 5983 struct ctl_page_index *page_index, uint8_t *page_ptr) 5984{ 5985 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 5986 struct ctl_lun *lun; 5987 struct ctl_softc *softc; 5988 int set_ua; 5989 uint32_t initidx; 5990 5991 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5992 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5993 set_ua = 0; 5994 5995 user_cp = (struct scsi_control_page *)page_ptr; 5996 current_cp = (struct scsi_control_page *) 5997 (page_index->page_data + (page_index->page_len * 5998 CTL_PAGE_CURRENT)); 5999 saved_cp = (struct scsi_control_page *) 6000 (page_index->page_data + (page_index->page_len * 6001 CTL_PAGE_SAVED)); 6002 6003 softc = control_softc; 6004 6005 mtx_lock(&lun->lun_lock); 6006 if (((current_cp->rlec & SCP_DSENSE) == 0) 6007 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 6008 /* 6009 * Descriptor sense is currently turned off and the user 6010 * wants to turn it on. 6011 */ 6012 current_cp->rlec |= SCP_DSENSE; 6013 saved_cp->rlec |= SCP_DSENSE; 6014 lun->flags |= CTL_LUN_SENSE_DESC; 6015 set_ua = 1; 6016 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 6017 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 6018 /* 6019 * Descriptor sense is currently turned on, and the user 6020 * wants to turn it off. 6021 */ 6022 current_cp->rlec &= ~SCP_DSENSE; 6023 saved_cp->rlec &= ~SCP_DSENSE; 6024 lun->flags &= ~CTL_LUN_SENSE_DESC; 6025 set_ua = 1; 6026 } 6027 if ((current_cp->queue_flags & SCP_QUEUE_ALG_MASK) != 6028 (user_cp->queue_flags & SCP_QUEUE_ALG_MASK)) { 6029 current_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6030 current_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6031 saved_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6032 saved_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6033 set_ua = 1; 6034 } 6035 if ((current_cp->eca_and_aen & SCP_SWP) != 6036 (user_cp->eca_and_aen & SCP_SWP)) { 6037 current_cp->eca_and_aen &= ~SCP_SWP; 6038 current_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6039 saved_cp->eca_and_aen &= ~SCP_SWP; 6040 saved_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6041 set_ua = 1; 6042 } 6043 if (set_ua != 0) { 6044 int i; 6045 /* 6046 * Let other initiators know that the mode 6047 * parameters for this LUN have changed. 6048 */ 6049 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6050 if (i == initidx) 6051 continue; 6052 6053 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6054 } 6055 } 6056 mtx_unlock(&lun->lun_lock); 6057 6058 return (0); 6059} 6060 6061int 6062ctl_caching_sp_handler(struct ctl_scsiio *ctsio, 6063 struct ctl_page_index *page_index, uint8_t *page_ptr) 6064{ 6065 struct scsi_caching_page *current_cp, *saved_cp, *user_cp; 6066 struct ctl_lun *lun; 6067 int set_ua; 6068 uint32_t initidx; 6069 6070 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6071 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6072 set_ua = 0; 6073 6074 user_cp = (struct scsi_caching_page *)page_ptr; 6075 current_cp = (struct scsi_caching_page *) 6076 (page_index->page_data + (page_index->page_len * 6077 CTL_PAGE_CURRENT)); 6078 saved_cp = (struct scsi_caching_page *) 6079 (page_index->page_data + (page_index->page_len * 6080 CTL_PAGE_SAVED)); 6081 6082 mtx_lock(&lun->lun_lock); 6083 if ((current_cp->flags1 & (SCP_WCE | SCP_RCD)) != 6084 (user_cp->flags1 & (SCP_WCE | SCP_RCD))) { 6085 current_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6086 current_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6087 saved_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6088 saved_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6089 set_ua = 1; 6090 } 6091 if (set_ua != 0) { 6092 int i; 6093 /* 6094 * Let other initiators know that the mode 6095 * parameters for this LUN have changed. 6096 */ 6097 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6098 if (i == initidx) 6099 continue; 6100 6101 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6102 } 6103 } 6104 mtx_unlock(&lun->lun_lock); 6105 6106 return (0); 6107} 6108 6109int 6110ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 6111 struct ctl_page_index *page_index, 6112 uint8_t *page_ptr) 6113{ 6114 uint8_t *c; 6115 int i; 6116 6117 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 6118 ctl_time_io_secs = 6119 (c[0] << 8) | 6120 (c[1] << 0) | 6121 0; 6122 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 6123 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 6124 printf("page data:"); 6125 for (i=0; i<8; i++) 6126 printf(" %.2x",page_ptr[i]); 6127 printf("\n"); 6128 return (0); 6129} 6130 6131int 6132ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 6133 struct ctl_page_index *page_index, 6134 int pc) 6135{ 6136 struct copan_debugconf_subpage *page; 6137 6138 page = (struct copan_debugconf_subpage *)page_index->page_data + 6139 (page_index->page_len * pc); 6140 6141 switch (pc) { 6142 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6143 case SMS_PAGE_CTRL_DEFAULT >> 6: 6144 case SMS_PAGE_CTRL_SAVED >> 6: 6145 /* 6146 * We don't update the changable or default bits for this page. 6147 */ 6148 break; 6149 case SMS_PAGE_CTRL_CURRENT >> 6: 6150 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 6151 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 6152 break; 6153 default: 6154#ifdef NEEDTOPORT 6155 EPRINT(0, "Invalid PC %d!!", pc); 6156#endif /* NEEDTOPORT */ 6157 break; 6158 } 6159 return (0); 6160} 6161 6162 6163static int 6164ctl_do_mode_select(union ctl_io *io) 6165{ 6166 struct scsi_mode_page_header *page_header; 6167 struct ctl_page_index *page_index; 6168 struct ctl_scsiio *ctsio; 6169 int control_dev, page_len; 6170 int page_len_offset, page_len_size; 6171 union ctl_modepage_info *modepage_info; 6172 struct ctl_lun *lun; 6173 int *len_left, *len_used; 6174 int retval, i; 6175 6176 ctsio = &io->scsiio; 6177 page_index = NULL; 6178 page_len = 0; 6179 retval = CTL_RETVAL_COMPLETE; 6180 6181 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6182 6183 if (lun->be_lun->lun_type != T_DIRECT) 6184 control_dev = 1; 6185 else 6186 control_dev = 0; 6187 6188 modepage_info = (union ctl_modepage_info *) 6189 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6190 len_left = &modepage_info->header.len_left; 6191 len_used = &modepage_info->header.len_used; 6192 6193do_next_page: 6194 6195 page_header = (struct scsi_mode_page_header *) 6196 (ctsio->kern_data_ptr + *len_used); 6197 6198 if (*len_left == 0) { 6199 free(ctsio->kern_data_ptr, M_CTL); 6200 ctl_set_success(ctsio); 6201 ctl_done((union ctl_io *)ctsio); 6202 return (CTL_RETVAL_COMPLETE); 6203 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6204 6205 free(ctsio->kern_data_ptr, M_CTL); 6206 ctl_set_param_len_error(ctsio); 6207 ctl_done((union ctl_io *)ctsio); 6208 return (CTL_RETVAL_COMPLETE); 6209 6210 } else if ((page_header->page_code & SMPH_SPF) 6211 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6212 6213 free(ctsio->kern_data_ptr, M_CTL); 6214 ctl_set_param_len_error(ctsio); 6215 ctl_done((union ctl_io *)ctsio); 6216 return (CTL_RETVAL_COMPLETE); 6217 } 6218 6219 6220 /* 6221 * XXX KDM should we do something with the block descriptor? 6222 */ 6223 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6224 6225 if ((control_dev != 0) 6226 && (lun->mode_pages.index[i].page_flags & 6227 CTL_PAGE_FLAG_DISK_ONLY)) 6228 continue; 6229 6230 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 6231 (page_header->page_code & SMPH_PC_MASK)) 6232 continue; 6233 6234 /* 6235 * If neither page has a subpage code, then we've got a 6236 * match. 6237 */ 6238 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 6239 && ((page_header->page_code & SMPH_SPF) == 0)) { 6240 page_index = &lun->mode_pages.index[i]; 6241 page_len = page_header->page_length; 6242 break; 6243 } 6244 6245 /* 6246 * If both pages have subpages, then the subpage numbers 6247 * have to match. 6248 */ 6249 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 6250 && (page_header->page_code & SMPH_SPF)) { 6251 struct scsi_mode_page_header_sp *sph; 6252 6253 sph = (struct scsi_mode_page_header_sp *)page_header; 6254 6255 if (lun->mode_pages.index[i].subpage == 6256 sph->subpage) { 6257 page_index = &lun->mode_pages.index[i]; 6258 page_len = scsi_2btoul(sph->page_length); 6259 break; 6260 } 6261 } 6262 } 6263 6264 /* 6265 * If we couldn't find the page, or if we don't have a mode select 6266 * handler for it, send back an error to the user. 6267 */ 6268 if ((page_index == NULL) 6269 || (page_index->select_handler == NULL)) { 6270 ctl_set_invalid_field(ctsio, 6271 /*sks_valid*/ 1, 6272 /*command*/ 0, 6273 /*field*/ *len_used, 6274 /*bit_valid*/ 0, 6275 /*bit*/ 0); 6276 free(ctsio->kern_data_ptr, M_CTL); 6277 ctl_done((union ctl_io *)ctsio); 6278 return (CTL_RETVAL_COMPLETE); 6279 } 6280 6281 if (page_index->page_code & SMPH_SPF) { 6282 page_len_offset = 2; 6283 page_len_size = 2; 6284 } else { 6285 page_len_size = 1; 6286 page_len_offset = 1; 6287 } 6288 6289 /* 6290 * If the length the initiator gives us isn't the one we specify in 6291 * the mode page header, or if they didn't specify enough data in 6292 * the CDB to avoid truncating this page, kick out the request. 6293 */ 6294 if ((page_len != (page_index->page_len - page_len_offset - 6295 page_len_size)) 6296 || (*len_left < page_index->page_len)) { 6297 6298 6299 ctl_set_invalid_field(ctsio, 6300 /*sks_valid*/ 1, 6301 /*command*/ 0, 6302 /*field*/ *len_used + page_len_offset, 6303 /*bit_valid*/ 0, 6304 /*bit*/ 0); 6305 free(ctsio->kern_data_ptr, M_CTL); 6306 ctl_done((union ctl_io *)ctsio); 6307 return (CTL_RETVAL_COMPLETE); 6308 } 6309 6310 /* 6311 * Run through the mode page, checking to make sure that the bits 6312 * the user changed are actually legal for him to change. 6313 */ 6314 for (i = 0; i < page_index->page_len; i++) { 6315 uint8_t *user_byte, *change_mask, *current_byte; 6316 int bad_bit; 6317 int j; 6318 6319 user_byte = (uint8_t *)page_header + i; 6320 change_mask = page_index->page_data + 6321 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6322 current_byte = page_index->page_data + 6323 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6324 6325 /* 6326 * Check to see whether the user set any bits in this byte 6327 * that he is not allowed to set. 6328 */ 6329 if ((*user_byte & ~(*change_mask)) == 6330 (*current_byte & ~(*change_mask))) 6331 continue; 6332 6333 /* 6334 * Go through bit by bit to determine which one is illegal. 6335 */ 6336 bad_bit = 0; 6337 for (j = 7; j >= 0; j--) { 6338 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6339 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6340 bad_bit = i; 6341 break; 6342 } 6343 } 6344 ctl_set_invalid_field(ctsio, 6345 /*sks_valid*/ 1, 6346 /*command*/ 0, 6347 /*field*/ *len_used + i, 6348 /*bit_valid*/ 1, 6349 /*bit*/ bad_bit); 6350 free(ctsio->kern_data_ptr, M_CTL); 6351 ctl_done((union ctl_io *)ctsio); 6352 return (CTL_RETVAL_COMPLETE); 6353 } 6354 6355 /* 6356 * Decrement these before we call the page handler, since we may 6357 * end up getting called back one way or another before the handler 6358 * returns to this context. 6359 */ 6360 *len_left -= page_index->page_len; 6361 *len_used += page_index->page_len; 6362 6363 retval = page_index->select_handler(ctsio, page_index, 6364 (uint8_t *)page_header); 6365 6366 /* 6367 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6368 * wait until this queued command completes to finish processing 6369 * the mode page. If it returns anything other than 6370 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6371 * already set the sense information, freed the data pointer, and 6372 * completed the io for us. 6373 */ 6374 if (retval != CTL_RETVAL_COMPLETE) 6375 goto bailout_no_done; 6376 6377 /* 6378 * If the initiator sent us more than one page, parse the next one. 6379 */ 6380 if (*len_left > 0) 6381 goto do_next_page; 6382 6383 ctl_set_success(ctsio); 6384 free(ctsio->kern_data_ptr, M_CTL); 6385 ctl_done((union ctl_io *)ctsio); 6386 6387bailout_no_done: 6388 6389 return (CTL_RETVAL_COMPLETE); 6390 6391} 6392 6393int 6394ctl_mode_select(struct ctl_scsiio *ctsio) 6395{ 6396 int param_len, pf, sp; 6397 int header_size, bd_len; 6398 int len_left, len_used; 6399 struct ctl_page_index *page_index; 6400 struct ctl_lun *lun; 6401 int control_dev, page_len; 6402 union ctl_modepage_info *modepage_info; 6403 int retval; 6404 6405 pf = 0; 6406 sp = 0; 6407 page_len = 0; 6408 len_used = 0; 6409 len_left = 0; 6410 retval = 0; 6411 bd_len = 0; 6412 page_index = NULL; 6413 6414 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6415 6416 if (lun->be_lun->lun_type != T_DIRECT) 6417 control_dev = 1; 6418 else 6419 control_dev = 0; 6420 6421 switch (ctsio->cdb[0]) { 6422 case MODE_SELECT_6: { 6423 struct scsi_mode_select_6 *cdb; 6424 6425 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6426 6427 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6428 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6429 6430 param_len = cdb->length; 6431 header_size = sizeof(struct scsi_mode_header_6); 6432 break; 6433 } 6434 case MODE_SELECT_10: { 6435 struct scsi_mode_select_10 *cdb; 6436 6437 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6438 6439 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6440 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6441 6442 param_len = scsi_2btoul(cdb->length); 6443 header_size = sizeof(struct scsi_mode_header_10); 6444 break; 6445 } 6446 default: 6447 ctl_set_invalid_opcode(ctsio); 6448 ctl_done((union ctl_io *)ctsio); 6449 return (CTL_RETVAL_COMPLETE); 6450 break; /* NOTREACHED */ 6451 } 6452 6453 /* 6454 * From SPC-3: 6455 * "A parameter list length of zero indicates that the Data-Out Buffer 6456 * shall be empty. This condition shall not be considered as an error." 6457 */ 6458 if (param_len == 0) { 6459 ctl_set_success(ctsio); 6460 ctl_done((union ctl_io *)ctsio); 6461 return (CTL_RETVAL_COMPLETE); 6462 } 6463 6464 /* 6465 * Since we'll hit this the first time through, prior to 6466 * allocation, we don't need to free a data buffer here. 6467 */ 6468 if (param_len < header_size) { 6469 ctl_set_param_len_error(ctsio); 6470 ctl_done((union ctl_io *)ctsio); 6471 return (CTL_RETVAL_COMPLETE); 6472 } 6473 6474 /* 6475 * Allocate the data buffer and grab the user's data. In theory, 6476 * we shouldn't have to sanity check the parameter list length here 6477 * because the maximum size is 64K. We should be able to malloc 6478 * that much without too many problems. 6479 */ 6480 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6481 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6482 ctsio->kern_data_len = param_len; 6483 ctsio->kern_total_len = param_len; 6484 ctsio->kern_data_resid = 0; 6485 ctsio->kern_rel_offset = 0; 6486 ctsio->kern_sg_entries = 0; 6487 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6488 ctsio->be_move_done = ctl_config_move_done; 6489 ctl_datamove((union ctl_io *)ctsio); 6490 6491 return (CTL_RETVAL_COMPLETE); 6492 } 6493 6494 switch (ctsio->cdb[0]) { 6495 case MODE_SELECT_6: { 6496 struct scsi_mode_header_6 *mh6; 6497 6498 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6499 bd_len = mh6->blk_desc_len; 6500 break; 6501 } 6502 case MODE_SELECT_10: { 6503 struct scsi_mode_header_10 *mh10; 6504 6505 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6506 bd_len = scsi_2btoul(mh10->blk_desc_len); 6507 break; 6508 } 6509 default: 6510 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6511 break; 6512 } 6513 6514 if (param_len < (header_size + bd_len)) { 6515 free(ctsio->kern_data_ptr, M_CTL); 6516 ctl_set_param_len_error(ctsio); 6517 ctl_done((union ctl_io *)ctsio); 6518 return (CTL_RETVAL_COMPLETE); 6519 } 6520 6521 /* 6522 * Set the IO_CONT flag, so that if this I/O gets passed to 6523 * ctl_config_write_done(), it'll get passed back to 6524 * ctl_do_mode_select() for further processing, or completion if 6525 * we're all done. 6526 */ 6527 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6528 ctsio->io_cont = ctl_do_mode_select; 6529 6530 modepage_info = (union ctl_modepage_info *) 6531 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6532 6533 memset(modepage_info, 0, sizeof(*modepage_info)); 6534 6535 len_left = param_len - header_size - bd_len; 6536 len_used = header_size + bd_len; 6537 6538 modepage_info->header.len_left = len_left; 6539 modepage_info->header.len_used = len_used; 6540 6541 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6542} 6543 6544int 6545ctl_mode_sense(struct ctl_scsiio *ctsio) 6546{ 6547 struct ctl_lun *lun; 6548 int pc, page_code, dbd, llba, subpage; 6549 int alloc_len, page_len, header_len, total_len; 6550 struct scsi_mode_block_descr *block_desc; 6551 struct ctl_page_index *page_index; 6552 int control_dev; 6553 6554 dbd = 0; 6555 llba = 0; 6556 block_desc = NULL; 6557 page_index = NULL; 6558 6559 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6560 6561 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6562 6563 if (lun->be_lun->lun_type != T_DIRECT) 6564 control_dev = 1; 6565 else 6566 control_dev = 0; 6567 6568 switch (ctsio->cdb[0]) { 6569 case MODE_SENSE_6: { 6570 struct scsi_mode_sense_6 *cdb; 6571 6572 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6573 6574 header_len = sizeof(struct scsi_mode_hdr_6); 6575 if (cdb->byte2 & SMS_DBD) 6576 dbd = 1; 6577 else 6578 header_len += sizeof(struct scsi_mode_block_descr); 6579 6580 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6581 page_code = cdb->page & SMS_PAGE_CODE; 6582 subpage = cdb->subpage; 6583 alloc_len = cdb->length; 6584 break; 6585 } 6586 case MODE_SENSE_10: { 6587 struct scsi_mode_sense_10 *cdb; 6588 6589 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6590 6591 header_len = sizeof(struct scsi_mode_hdr_10); 6592 6593 if (cdb->byte2 & SMS_DBD) 6594 dbd = 1; 6595 else 6596 header_len += sizeof(struct scsi_mode_block_descr); 6597 if (cdb->byte2 & SMS10_LLBAA) 6598 llba = 1; 6599 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6600 page_code = cdb->page & SMS_PAGE_CODE; 6601 subpage = cdb->subpage; 6602 alloc_len = scsi_2btoul(cdb->length); 6603 break; 6604 } 6605 default: 6606 ctl_set_invalid_opcode(ctsio); 6607 ctl_done((union ctl_io *)ctsio); 6608 return (CTL_RETVAL_COMPLETE); 6609 break; /* NOTREACHED */ 6610 } 6611 6612 /* 6613 * We have to make a first pass through to calculate the size of 6614 * the pages that match the user's query. Then we allocate enough 6615 * memory to hold it, and actually copy the data into the buffer. 6616 */ 6617 switch (page_code) { 6618 case SMS_ALL_PAGES_PAGE: { 6619 int i; 6620 6621 page_len = 0; 6622 6623 /* 6624 * At the moment, values other than 0 and 0xff here are 6625 * reserved according to SPC-3. 6626 */ 6627 if ((subpage != SMS_SUBPAGE_PAGE_0) 6628 && (subpage != SMS_SUBPAGE_ALL)) { 6629 ctl_set_invalid_field(ctsio, 6630 /*sks_valid*/ 1, 6631 /*command*/ 1, 6632 /*field*/ 3, 6633 /*bit_valid*/ 0, 6634 /*bit*/ 0); 6635 ctl_done((union ctl_io *)ctsio); 6636 return (CTL_RETVAL_COMPLETE); 6637 } 6638 6639 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6640 if ((control_dev != 0) 6641 && (lun->mode_pages.index[i].page_flags & 6642 CTL_PAGE_FLAG_DISK_ONLY)) 6643 continue; 6644 6645 /* 6646 * We don't use this subpage if the user didn't 6647 * request all subpages. 6648 */ 6649 if ((lun->mode_pages.index[i].subpage != 0) 6650 && (subpage == SMS_SUBPAGE_PAGE_0)) 6651 continue; 6652 6653#if 0 6654 printf("found page %#x len %d\n", 6655 lun->mode_pages.index[i].page_code & 6656 SMPH_PC_MASK, 6657 lun->mode_pages.index[i].page_len); 6658#endif 6659 page_len += lun->mode_pages.index[i].page_len; 6660 } 6661 break; 6662 } 6663 default: { 6664 int i; 6665 6666 page_len = 0; 6667 6668 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6669 /* Look for the right page code */ 6670 if ((lun->mode_pages.index[i].page_code & 6671 SMPH_PC_MASK) != page_code) 6672 continue; 6673 6674 /* Look for the right subpage or the subpage wildcard*/ 6675 if ((lun->mode_pages.index[i].subpage != subpage) 6676 && (subpage != SMS_SUBPAGE_ALL)) 6677 continue; 6678 6679 /* Make sure the page is supported for this dev type */ 6680 if ((control_dev != 0) 6681 && (lun->mode_pages.index[i].page_flags & 6682 CTL_PAGE_FLAG_DISK_ONLY)) 6683 continue; 6684 6685#if 0 6686 printf("found page %#x len %d\n", 6687 lun->mode_pages.index[i].page_code & 6688 SMPH_PC_MASK, 6689 lun->mode_pages.index[i].page_len); 6690#endif 6691 6692 page_len += lun->mode_pages.index[i].page_len; 6693 } 6694 6695 if (page_len == 0) { 6696 ctl_set_invalid_field(ctsio, 6697 /*sks_valid*/ 1, 6698 /*command*/ 1, 6699 /*field*/ 2, 6700 /*bit_valid*/ 1, 6701 /*bit*/ 5); 6702 ctl_done((union ctl_io *)ctsio); 6703 return (CTL_RETVAL_COMPLETE); 6704 } 6705 break; 6706 } 6707 } 6708 6709 total_len = header_len + page_len; 6710#if 0 6711 printf("header_len = %d, page_len = %d, total_len = %d\n", 6712 header_len, page_len, total_len); 6713#endif 6714 6715 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6716 ctsio->kern_sg_entries = 0; 6717 ctsio->kern_data_resid = 0; 6718 ctsio->kern_rel_offset = 0; 6719 if (total_len < alloc_len) { 6720 ctsio->residual = alloc_len - total_len; 6721 ctsio->kern_data_len = total_len; 6722 ctsio->kern_total_len = total_len; 6723 } else { 6724 ctsio->residual = 0; 6725 ctsio->kern_data_len = alloc_len; 6726 ctsio->kern_total_len = alloc_len; 6727 } 6728 6729 switch (ctsio->cdb[0]) { 6730 case MODE_SENSE_6: { 6731 struct scsi_mode_hdr_6 *header; 6732 6733 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6734 6735 header->datalen = ctl_min(total_len - 1, 254); 6736 if (control_dev == 0) { 6737 header->dev_specific = 0x10; /* DPOFUA */ 6738 if ((lun->flags & CTL_LUN_READONLY) || 6739 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6740 .eca_and_aen & SCP_SWP) != 0) 6741 header->dev_specific |= 0x80; /* WP */ 6742 } 6743 if (dbd) 6744 header->block_descr_len = 0; 6745 else 6746 header->block_descr_len = 6747 sizeof(struct scsi_mode_block_descr); 6748 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6749 break; 6750 } 6751 case MODE_SENSE_10: { 6752 struct scsi_mode_hdr_10 *header; 6753 int datalen; 6754 6755 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6756 6757 datalen = ctl_min(total_len - 2, 65533); 6758 scsi_ulto2b(datalen, header->datalen); 6759 if (control_dev == 0) { 6760 header->dev_specific = 0x10; /* DPOFUA */ 6761 if ((lun->flags & CTL_LUN_READONLY) || 6762 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6763 .eca_and_aen & SCP_SWP) != 0) 6764 header->dev_specific |= 0x80; /* WP */ 6765 } 6766 if (dbd) 6767 scsi_ulto2b(0, header->block_descr_len); 6768 else 6769 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 6770 header->block_descr_len); 6771 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6772 break; 6773 } 6774 default: 6775 panic("invalid CDB type %#x", ctsio->cdb[0]); 6776 break; /* NOTREACHED */ 6777 } 6778 6779 /* 6780 * If we've got a disk, use its blocksize in the block 6781 * descriptor. Otherwise, just set it to 0. 6782 */ 6783 if (dbd == 0) { 6784 if (control_dev == 0) 6785 scsi_ulto3b(lun->be_lun->blocksize, 6786 block_desc->block_len); 6787 else 6788 scsi_ulto3b(0, block_desc->block_len); 6789 } 6790 6791 switch (page_code) { 6792 case SMS_ALL_PAGES_PAGE: { 6793 int i, data_used; 6794 6795 data_used = header_len; 6796 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6797 struct ctl_page_index *page_index; 6798 6799 page_index = &lun->mode_pages.index[i]; 6800 6801 if ((control_dev != 0) 6802 && (page_index->page_flags & 6803 CTL_PAGE_FLAG_DISK_ONLY)) 6804 continue; 6805 6806 /* 6807 * We don't use this subpage if the user didn't 6808 * request all subpages. We already checked (above) 6809 * to make sure the user only specified a subpage 6810 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 6811 */ 6812 if ((page_index->subpage != 0) 6813 && (subpage == SMS_SUBPAGE_PAGE_0)) 6814 continue; 6815 6816 /* 6817 * Call the handler, if it exists, to update the 6818 * page to the latest values. 6819 */ 6820 if (page_index->sense_handler != NULL) 6821 page_index->sense_handler(ctsio, page_index,pc); 6822 6823 memcpy(ctsio->kern_data_ptr + data_used, 6824 page_index->page_data + 6825 (page_index->page_len * pc), 6826 page_index->page_len); 6827 data_used += page_index->page_len; 6828 } 6829 break; 6830 } 6831 default: { 6832 int i, data_used; 6833 6834 data_used = header_len; 6835 6836 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6837 struct ctl_page_index *page_index; 6838 6839 page_index = &lun->mode_pages.index[i]; 6840 6841 /* Look for the right page code */ 6842 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6843 continue; 6844 6845 /* Look for the right subpage or the subpage wildcard*/ 6846 if ((page_index->subpage != subpage) 6847 && (subpage != SMS_SUBPAGE_ALL)) 6848 continue; 6849 6850 /* Make sure the page is supported for this dev type */ 6851 if ((control_dev != 0) 6852 && (page_index->page_flags & 6853 CTL_PAGE_FLAG_DISK_ONLY)) 6854 continue; 6855 6856 /* 6857 * Call the handler, if it exists, to update the 6858 * page to the latest values. 6859 */ 6860 if (page_index->sense_handler != NULL) 6861 page_index->sense_handler(ctsio, page_index,pc); 6862 6863 memcpy(ctsio->kern_data_ptr + data_used, 6864 page_index->page_data + 6865 (page_index->page_len * pc), 6866 page_index->page_len); 6867 data_used += page_index->page_len; 6868 } 6869 break; 6870 } 6871 } 6872 6873 ctsio->scsi_status = SCSI_STATUS_OK; 6874 6875 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6876 ctsio->be_move_done = ctl_config_move_done; 6877 ctl_datamove((union ctl_io *)ctsio); 6878 6879 return (CTL_RETVAL_COMPLETE); 6880} 6881 6882int 6883ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio, 6884 struct ctl_page_index *page_index, 6885 int pc) 6886{ 6887 struct ctl_lun *lun; 6888 struct scsi_log_param_header *phdr; 6889 uint8_t *data; 6890 uint64_t val; 6891 6892 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6893 data = page_index->page_data; 6894 6895 if (lun->backend->lun_attr != NULL && 6896 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksavail")) 6897 != UINT64_MAX) { 6898 phdr = (struct scsi_log_param_header *)data; 6899 scsi_ulto2b(0x0001, phdr->param_code); 6900 phdr->param_control = SLP_LBIN | SLP_LP; 6901 phdr->param_len = 8; 6902 data = (uint8_t *)(phdr + 1); 6903 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6904 data[4] = 0x01; /* per-LUN */ 6905 data += phdr->param_len; 6906 } 6907 6908 if (lun->backend->lun_attr != NULL && 6909 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksused")) 6910 != UINT64_MAX) { 6911 phdr = (struct scsi_log_param_header *)data; 6912 scsi_ulto2b(0x0002, phdr->param_code); 6913 phdr->param_control = SLP_LBIN | SLP_LP; 6914 phdr->param_len = 8; 6915 data = (uint8_t *)(phdr + 1); 6916 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6917 data[4] = 0x02; /* per-pool */ 6918 data += phdr->param_len; 6919 } 6920 6921 if (lun->backend->lun_attr != NULL && 6922 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksavail")) 6923 != UINT64_MAX) { 6924 phdr = (struct scsi_log_param_header *)data; 6925 scsi_ulto2b(0x00f1, phdr->param_code); 6926 phdr->param_control = SLP_LBIN | SLP_LP; 6927 phdr->param_len = 8; 6928 data = (uint8_t *)(phdr + 1); 6929 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6930 data[4] = 0x02; /* per-pool */ 6931 data += phdr->param_len; 6932 } 6933 6934 if (lun->backend->lun_attr != NULL && 6935 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksused")) 6936 != UINT64_MAX) { 6937 phdr = (struct scsi_log_param_header *)data; 6938 scsi_ulto2b(0x00f2, phdr->param_code); 6939 phdr->param_control = SLP_LBIN | SLP_LP; 6940 phdr->param_len = 8; 6941 data = (uint8_t *)(phdr + 1); 6942 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6943 data[4] = 0x02; /* per-pool */ 6944 data += phdr->param_len; 6945 } 6946 6947 page_index->page_len = data - page_index->page_data; 6948 return (0); 6949} 6950 6951int 6952ctl_log_sense(struct ctl_scsiio *ctsio) 6953{ 6954 struct ctl_lun *lun; 6955 int i, pc, page_code, subpage; 6956 int alloc_len, total_len; 6957 struct ctl_page_index *page_index; 6958 struct scsi_log_sense *cdb; 6959 struct scsi_log_header *header; 6960 6961 CTL_DEBUG_PRINT(("ctl_log_sense\n")); 6962 6963 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6964 cdb = (struct scsi_log_sense *)ctsio->cdb; 6965 pc = (cdb->page & SLS_PAGE_CTRL_MASK) >> 6; 6966 page_code = cdb->page & SLS_PAGE_CODE; 6967 subpage = cdb->subpage; 6968 alloc_len = scsi_2btoul(cdb->length); 6969 6970 page_index = NULL; 6971 for (i = 0; i < CTL_NUM_LOG_PAGES; i++) { 6972 page_index = &lun->log_pages.index[i]; 6973 6974 /* Look for the right page code */ 6975 if ((page_index->page_code & SL_PAGE_CODE) != page_code) 6976 continue; 6977 6978 /* Look for the right subpage or the subpage wildcard*/ 6979 if (page_index->subpage != subpage) 6980 continue; 6981 6982 break; 6983 } 6984 if (i >= CTL_NUM_LOG_PAGES) { 6985 ctl_set_invalid_field(ctsio, 6986 /*sks_valid*/ 1, 6987 /*command*/ 1, 6988 /*field*/ 2, 6989 /*bit_valid*/ 0, 6990 /*bit*/ 0); 6991 ctl_done((union ctl_io *)ctsio); 6992 return (CTL_RETVAL_COMPLETE); 6993 } 6994 6995 total_len = sizeof(struct scsi_log_header) + page_index->page_len; 6996 6997 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6998 ctsio->kern_sg_entries = 0; 6999 ctsio->kern_data_resid = 0; 7000 ctsio->kern_rel_offset = 0; 7001 if (total_len < alloc_len) { 7002 ctsio->residual = alloc_len - total_len; 7003 ctsio->kern_data_len = total_len; 7004 ctsio->kern_total_len = total_len; 7005 } else { 7006 ctsio->residual = 0; 7007 ctsio->kern_data_len = alloc_len; 7008 ctsio->kern_total_len = alloc_len; 7009 } 7010 7011 header = (struct scsi_log_header *)ctsio->kern_data_ptr; 7012 header->page = page_index->page_code; 7013 if (page_index->subpage) { 7014 header->page |= SL_SPF; 7015 header->subpage = page_index->subpage; 7016 } 7017 scsi_ulto2b(page_index->page_len, header->datalen); 7018 7019 /* 7020 * Call the handler, if it exists, to update the 7021 * page to the latest values. 7022 */ 7023 if (page_index->sense_handler != NULL) 7024 page_index->sense_handler(ctsio, page_index, pc); 7025 7026 memcpy(header + 1, page_index->page_data, page_index->page_len); 7027 7028 ctsio->scsi_status = SCSI_STATUS_OK; 7029 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7030 ctsio->be_move_done = ctl_config_move_done; 7031 ctl_datamove((union ctl_io *)ctsio); 7032 7033 return (CTL_RETVAL_COMPLETE); 7034} 7035 7036int 7037ctl_read_capacity(struct ctl_scsiio *ctsio) 7038{ 7039 struct scsi_read_capacity *cdb; 7040 struct scsi_read_capacity_data *data; 7041 struct ctl_lun *lun; 7042 uint32_t lba; 7043 7044 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 7045 7046 cdb = (struct scsi_read_capacity *)ctsio->cdb; 7047 7048 lba = scsi_4btoul(cdb->addr); 7049 if (((cdb->pmi & SRC_PMI) == 0) 7050 && (lba != 0)) { 7051 ctl_set_invalid_field(/*ctsio*/ ctsio, 7052 /*sks_valid*/ 1, 7053 /*command*/ 1, 7054 /*field*/ 2, 7055 /*bit_valid*/ 0, 7056 /*bit*/ 0); 7057 ctl_done((union ctl_io *)ctsio); 7058 return (CTL_RETVAL_COMPLETE); 7059 } 7060 7061 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7062 7063 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7064 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 7065 ctsio->residual = 0; 7066 ctsio->kern_data_len = sizeof(*data); 7067 ctsio->kern_total_len = sizeof(*data); 7068 ctsio->kern_data_resid = 0; 7069 ctsio->kern_rel_offset = 0; 7070 ctsio->kern_sg_entries = 0; 7071 7072 /* 7073 * If the maximum LBA is greater than 0xfffffffe, the user must 7074 * issue a SERVICE ACTION IN (16) command, with the read capacity 7075 * serivce action set. 7076 */ 7077 if (lun->be_lun->maxlba > 0xfffffffe) 7078 scsi_ulto4b(0xffffffff, data->addr); 7079 else 7080 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 7081 7082 /* 7083 * XXX KDM this may not be 512 bytes... 7084 */ 7085 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7086 7087 ctsio->scsi_status = SCSI_STATUS_OK; 7088 7089 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7090 ctsio->be_move_done = ctl_config_move_done; 7091 ctl_datamove((union ctl_io *)ctsio); 7092 7093 return (CTL_RETVAL_COMPLETE); 7094} 7095 7096int 7097ctl_read_capacity_16(struct ctl_scsiio *ctsio) 7098{ 7099 struct scsi_read_capacity_16 *cdb; 7100 struct scsi_read_capacity_data_long *data; 7101 struct ctl_lun *lun; 7102 uint64_t lba; 7103 uint32_t alloc_len; 7104 7105 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 7106 7107 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 7108 7109 alloc_len = scsi_4btoul(cdb->alloc_len); 7110 lba = scsi_8btou64(cdb->addr); 7111 7112 if ((cdb->reladr & SRC16_PMI) 7113 && (lba != 0)) { 7114 ctl_set_invalid_field(/*ctsio*/ ctsio, 7115 /*sks_valid*/ 1, 7116 /*command*/ 1, 7117 /*field*/ 2, 7118 /*bit_valid*/ 0, 7119 /*bit*/ 0); 7120 ctl_done((union ctl_io *)ctsio); 7121 return (CTL_RETVAL_COMPLETE); 7122 } 7123 7124 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7125 7126 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7127 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 7128 7129 if (sizeof(*data) < alloc_len) { 7130 ctsio->residual = alloc_len - sizeof(*data); 7131 ctsio->kern_data_len = sizeof(*data); 7132 ctsio->kern_total_len = sizeof(*data); 7133 } else { 7134 ctsio->residual = 0; 7135 ctsio->kern_data_len = alloc_len; 7136 ctsio->kern_total_len = alloc_len; 7137 } 7138 ctsio->kern_data_resid = 0; 7139 ctsio->kern_rel_offset = 0; 7140 ctsio->kern_sg_entries = 0; 7141 7142 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7143 /* XXX KDM this may not be 512 bytes... */ 7144 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7145 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7146 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7147 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7148 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 7149 7150 ctsio->scsi_status = SCSI_STATUS_OK; 7151 7152 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7153 ctsio->be_move_done = ctl_config_move_done; 7154 ctl_datamove((union ctl_io *)ctsio); 7155 7156 return (CTL_RETVAL_COMPLETE); 7157} 7158 7159int 7160ctl_read_defect(struct ctl_scsiio *ctsio) 7161{ 7162 struct scsi_read_defect_data_10 *ccb10; 7163 struct scsi_read_defect_data_12 *ccb12; 7164 struct scsi_read_defect_data_hdr_10 *data10; 7165 struct scsi_read_defect_data_hdr_12 *data12; 7166 uint32_t alloc_len, data_len; 7167 uint8_t format; 7168 7169 CTL_DEBUG_PRINT(("ctl_read_defect\n")); 7170 7171 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7172 ccb10 = (struct scsi_read_defect_data_10 *)&ctsio->cdb; 7173 format = ccb10->format; 7174 alloc_len = scsi_2btoul(ccb10->alloc_length); 7175 data_len = sizeof(*data10); 7176 } else { 7177 ccb12 = (struct scsi_read_defect_data_12 *)&ctsio->cdb; 7178 format = ccb12->format; 7179 alloc_len = scsi_4btoul(ccb12->alloc_length); 7180 data_len = sizeof(*data12); 7181 } 7182 if (alloc_len == 0) { 7183 ctl_set_success(ctsio); 7184 ctl_done((union ctl_io *)ctsio); 7185 return (CTL_RETVAL_COMPLETE); 7186 } 7187 7188 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 7189 if (data_len < alloc_len) { 7190 ctsio->residual = alloc_len - data_len; 7191 ctsio->kern_data_len = data_len; 7192 ctsio->kern_total_len = data_len; 7193 } else { 7194 ctsio->residual = 0; 7195 ctsio->kern_data_len = alloc_len; 7196 ctsio->kern_total_len = alloc_len; 7197 } 7198 ctsio->kern_data_resid = 0; 7199 ctsio->kern_rel_offset = 0; 7200 ctsio->kern_sg_entries = 0; 7201 7202 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7203 data10 = (struct scsi_read_defect_data_hdr_10 *) 7204 ctsio->kern_data_ptr; 7205 data10->format = format; 7206 scsi_ulto2b(0, data10->length); 7207 } else { 7208 data12 = (struct scsi_read_defect_data_hdr_12 *) 7209 ctsio->kern_data_ptr; 7210 data12->format = format; 7211 scsi_ulto2b(0, data12->generation); 7212 scsi_ulto4b(0, data12->length); 7213 } 7214 7215 ctsio->scsi_status = SCSI_STATUS_OK; 7216 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7217 ctsio->be_move_done = ctl_config_move_done; 7218 ctl_datamove((union ctl_io *)ctsio); 7219 return (CTL_RETVAL_COMPLETE); 7220} 7221 7222int 7223ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7224{ 7225 struct scsi_maintenance_in *cdb; 7226 int retval; 7227 int alloc_len, ext, total_len = 0, g, p, pc, pg, gs, os; 7228 int num_target_port_groups, num_target_ports; 7229 struct ctl_lun *lun; 7230 struct ctl_softc *softc; 7231 struct ctl_port *port; 7232 struct scsi_target_group_data *rtg_ptr; 7233 struct scsi_target_group_data_extended *rtg_ext_ptr; 7234 struct scsi_target_port_group_descriptor *tpg_desc; 7235 7236 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7237 7238 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7239 softc = control_softc; 7240 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7241 7242 retval = CTL_RETVAL_COMPLETE; 7243 7244 switch (cdb->byte2 & STG_PDF_MASK) { 7245 case STG_PDF_LENGTH: 7246 ext = 0; 7247 break; 7248 case STG_PDF_EXTENDED: 7249 ext = 1; 7250 break; 7251 default: 7252 ctl_set_invalid_field(/*ctsio*/ ctsio, 7253 /*sks_valid*/ 1, 7254 /*command*/ 1, 7255 /*field*/ 2, 7256 /*bit_valid*/ 1, 7257 /*bit*/ 5); 7258 ctl_done((union ctl_io *)ctsio); 7259 return(retval); 7260 } 7261 7262 if (softc->is_single) 7263 num_target_port_groups = 1; 7264 else 7265 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7266 num_target_ports = 0; 7267 mtx_lock(&softc->ctl_lock); 7268 STAILQ_FOREACH(port, &softc->port_list, links) { 7269 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7270 continue; 7271 if (ctl_map_lun_back(port->targ_port, lun->lun) >= CTL_MAX_LUNS) 7272 continue; 7273 num_target_ports++; 7274 } 7275 mtx_unlock(&softc->ctl_lock); 7276 7277 if (ext) 7278 total_len = sizeof(struct scsi_target_group_data_extended); 7279 else 7280 total_len = sizeof(struct scsi_target_group_data); 7281 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7282 num_target_port_groups + 7283 sizeof(struct scsi_target_port_descriptor) * 7284 num_target_ports * num_target_port_groups; 7285 7286 alloc_len = scsi_4btoul(cdb->length); 7287 7288 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7289 7290 ctsio->kern_sg_entries = 0; 7291 7292 if (total_len < alloc_len) { 7293 ctsio->residual = alloc_len - total_len; 7294 ctsio->kern_data_len = total_len; 7295 ctsio->kern_total_len = total_len; 7296 } else { 7297 ctsio->residual = 0; 7298 ctsio->kern_data_len = alloc_len; 7299 ctsio->kern_total_len = alloc_len; 7300 } 7301 ctsio->kern_data_resid = 0; 7302 ctsio->kern_rel_offset = 0; 7303 7304 if (ext) { 7305 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7306 ctsio->kern_data_ptr; 7307 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7308 rtg_ext_ptr->format_type = 0x10; 7309 rtg_ext_ptr->implicit_transition_time = 0; 7310 tpg_desc = &rtg_ext_ptr->groups[0]; 7311 } else { 7312 rtg_ptr = (struct scsi_target_group_data *) 7313 ctsio->kern_data_ptr; 7314 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7315 tpg_desc = &rtg_ptr->groups[0]; 7316 } 7317 7318 mtx_lock(&softc->ctl_lock); 7319 pg = softc->port_offset / CTL_MAX_PORTS; 7320 if (softc->flags & CTL_FLAG_ACTIVE_SHELF) { 7321 if (softc->ha_mode == CTL_HA_MODE_ACT_STBY) { 7322 gs = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7323 os = TPG_ASYMMETRIC_ACCESS_STANDBY; 7324 } else if (lun->flags & CTL_LUN_PRIMARY_SC) { 7325 gs = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7326 os = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7327 } else { 7328 gs = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7329 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7330 } 7331 } else { 7332 gs = TPG_ASYMMETRIC_ACCESS_STANDBY; 7333 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7334 } 7335 for (g = 0; g < num_target_port_groups; g++) { 7336 tpg_desc->pref_state = (g == pg) ? gs : os; 7337 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP; 7338 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7339 tpg_desc->status = TPG_IMPLICIT; 7340 pc = 0; 7341 STAILQ_FOREACH(port, &softc->port_list, links) { 7342 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7343 continue; 7344 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 7345 CTL_MAX_LUNS) 7346 continue; 7347 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 7348 scsi_ulto2b(p, tpg_desc->descriptors[pc]. 7349 relative_target_port_identifier); 7350 pc++; 7351 } 7352 tpg_desc->target_port_count = pc; 7353 tpg_desc = (struct scsi_target_port_group_descriptor *) 7354 &tpg_desc->descriptors[pc]; 7355 } 7356 mtx_unlock(&softc->ctl_lock); 7357 7358 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7359 ctsio->be_move_done = ctl_config_move_done; 7360 7361 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7362 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7363 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7364 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7365 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7366 7367 ctl_datamove((union ctl_io *)ctsio); 7368 return(retval); 7369} 7370 7371int 7372ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7373{ 7374 struct ctl_lun *lun; 7375 struct scsi_report_supported_opcodes *cdb; 7376 const struct ctl_cmd_entry *entry, *sentry; 7377 struct scsi_report_supported_opcodes_all *all; 7378 struct scsi_report_supported_opcodes_descr *descr; 7379 struct scsi_report_supported_opcodes_one *one; 7380 int retval; 7381 int alloc_len, total_len; 7382 int opcode, service_action, i, j, num; 7383 7384 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7385 7386 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7387 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7388 7389 retval = CTL_RETVAL_COMPLETE; 7390 7391 opcode = cdb->requested_opcode; 7392 service_action = scsi_2btoul(cdb->requested_service_action); 7393 switch (cdb->options & RSO_OPTIONS_MASK) { 7394 case RSO_OPTIONS_ALL: 7395 num = 0; 7396 for (i = 0; i < 256; i++) { 7397 entry = &ctl_cmd_table[i]; 7398 if (entry->flags & CTL_CMD_FLAG_SA5) { 7399 for (j = 0; j < 32; j++) { 7400 sentry = &((const struct ctl_cmd_entry *) 7401 entry->execute)[j]; 7402 if (ctl_cmd_applicable( 7403 lun->be_lun->lun_type, sentry)) 7404 num++; 7405 } 7406 } else { 7407 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7408 entry)) 7409 num++; 7410 } 7411 } 7412 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7413 num * sizeof(struct scsi_report_supported_opcodes_descr); 7414 break; 7415 case RSO_OPTIONS_OC: 7416 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7417 ctl_set_invalid_field(/*ctsio*/ ctsio, 7418 /*sks_valid*/ 1, 7419 /*command*/ 1, 7420 /*field*/ 2, 7421 /*bit_valid*/ 1, 7422 /*bit*/ 2); 7423 ctl_done((union ctl_io *)ctsio); 7424 return (CTL_RETVAL_COMPLETE); 7425 } 7426 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7427 break; 7428 case RSO_OPTIONS_OC_SA: 7429 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7430 service_action >= 32) { 7431 ctl_set_invalid_field(/*ctsio*/ ctsio, 7432 /*sks_valid*/ 1, 7433 /*command*/ 1, 7434 /*field*/ 2, 7435 /*bit_valid*/ 1, 7436 /*bit*/ 2); 7437 ctl_done((union ctl_io *)ctsio); 7438 return (CTL_RETVAL_COMPLETE); 7439 } 7440 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7441 break; 7442 default: 7443 ctl_set_invalid_field(/*ctsio*/ ctsio, 7444 /*sks_valid*/ 1, 7445 /*command*/ 1, 7446 /*field*/ 2, 7447 /*bit_valid*/ 1, 7448 /*bit*/ 2); 7449 ctl_done((union ctl_io *)ctsio); 7450 return (CTL_RETVAL_COMPLETE); 7451 } 7452 7453 alloc_len = scsi_4btoul(cdb->length); 7454 7455 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7456 7457 ctsio->kern_sg_entries = 0; 7458 7459 if (total_len < alloc_len) { 7460 ctsio->residual = alloc_len - total_len; 7461 ctsio->kern_data_len = total_len; 7462 ctsio->kern_total_len = total_len; 7463 } else { 7464 ctsio->residual = 0; 7465 ctsio->kern_data_len = alloc_len; 7466 ctsio->kern_total_len = alloc_len; 7467 } 7468 ctsio->kern_data_resid = 0; 7469 ctsio->kern_rel_offset = 0; 7470 7471 switch (cdb->options & RSO_OPTIONS_MASK) { 7472 case RSO_OPTIONS_ALL: 7473 all = (struct scsi_report_supported_opcodes_all *) 7474 ctsio->kern_data_ptr; 7475 num = 0; 7476 for (i = 0; i < 256; i++) { 7477 entry = &ctl_cmd_table[i]; 7478 if (entry->flags & CTL_CMD_FLAG_SA5) { 7479 for (j = 0; j < 32; j++) { 7480 sentry = &((const struct ctl_cmd_entry *) 7481 entry->execute)[j]; 7482 if (!ctl_cmd_applicable( 7483 lun->be_lun->lun_type, sentry)) 7484 continue; 7485 descr = &all->descr[num++]; 7486 descr->opcode = i; 7487 scsi_ulto2b(j, descr->service_action); 7488 descr->flags = RSO_SERVACTV; 7489 scsi_ulto2b(sentry->length, 7490 descr->cdb_length); 7491 } 7492 } else { 7493 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7494 entry)) 7495 continue; 7496 descr = &all->descr[num++]; 7497 descr->opcode = i; 7498 scsi_ulto2b(0, descr->service_action); 7499 descr->flags = 0; 7500 scsi_ulto2b(entry->length, descr->cdb_length); 7501 } 7502 } 7503 scsi_ulto4b( 7504 num * sizeof(struct scsi_report_supported_opcodes_descr), 7505 all->length); 7506 break; 7507 case RSO_OPTIONS_OC: 7508 one = (struct scsi_report_supported_opcodes_one *) 7509 ctsio->kern_data_ptr; 7510 entry = &ctl_cmd_table[opcode]; 7511 goto fill_one; 7512 case RSO_OPTIONS_OC_SA: 7513 one = (struct scsi_report_supported_opcodes_one *) 7514 ctsio->kern_data_ptr; 7515 entry = &ctl_cmd_table[opcode]; 7516 entry = &((const struct ctl_cmd_entry *) 7517 entry->execute)[service_action]; 7518fill_one: 7519 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7520 one->support = 3; 7521 scsi_ulto2b(entry->length, one->cdb_length); 7522 one->cdb_usage[0] = opcode; 7523 memcpy(&one->cdb_usage[1], entry->usage, 7524 entry->length - 1); 7525 } else 7526 one->support = 1; 7527 break; 7528 } 7529 7530 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7531 ctsio->be_move_done = ctl_config_move_done; 7532 7533 ctl_datamove((union ctl_io *)ctsio); 7534 return(retval); 7535} 7536 7537int 7538ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7539{ 7540 struct scsi_report_supported_tmf *cdb; 7541 struct scsi_report_supported_tmf_data *data; 7542 int retval; 7543 int alloc_len, total_len; 7544 7545 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7546 7547 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7548 7549 retval = CTL_RETVAL_COMPLETE; 7550 7551 total_len = sizeof(struct scsi_report_supported_tmf_data); 7552 alloc_len = scsi_4btoul(cdb->length); 7553 7554 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7555 7556 ctsio->kern_sg_entries = 0; 7557 7558 if (total_len < alloc_len) { 7559 ctsio->residual = alloc_len - total_len; 7560 ctsio->kern_data_len = total_len; 7561 ctsio->kern_total_len = total_len; 7562 } else { 7563 ctsio->residual = 0; 7564 ctsio->kern_data_len = alloc_len; 7565 ctsio->kern_total_len = alloc_len; 7566 } 7567 ctsio->kern_data_resid = 0; 7568 ctsio->kern_rel_offset = 0; 7569 7570 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7571 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_TRS; 7572 data->byte2 |= RST_ITNRS; 7573 7574 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7575 ctsio->be_move_done = ctl_config_move_done; 7576 7577 ctl_datamove((union ctl_io *)ctsio); 7578 return (retval); 7579} 7580 7581int 7582ctl_report_timestamp(struct ctl_scsiio *ctsio) 7583{ 7584 struct scsi_report_timestamp *cdb; 7585 struct scsi_report_timestamp_data *data; 7586 struct timeval tv; 7587 int64_t timestamp; 7588 int retval; 7589 int alloc_len, total_len; 7590 7591 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7592 7593 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7594 7595 retval = CTL_RETVAL_COMPLETE; 7596 7597 total_len = sizeof(struct scsi_report_timestamp_data); 7598 alloc_len = scsi_4btoul(cdb->length); 7599 7600 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7601 7602 ctsio->kern_sg_entries = 0; 7603 7604 if (total_len < alloc_len) { 7605 ctsio->residual = alloc_len - total_len; 7606 ctsio->kern_data_len = total_len; 7607 ctsio->kern_total_len = total_len; 7608 } else { 7609 ctsio->residual = 0; 7610 ctsio->kern_data_len = alloc_len; 7611 ctsio->kern_total_len = alloc_len; 7612 } 7613 ctsio->kern_data_resid = 0; 7614 ctsio->kern_rel_offset = 0; 7615 7616 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7617 scsi_ulto2b(sizeof(*data) - 2, data->length); 7618 data->origin = RTS_ORIG_OUTSIDE; 7619 getmicrotime(&tv); 7620 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7621 scsi_ulto4b(timestamp >> 16, data->timestamp); 7622 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7623 7624 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7625 ctsio->be_move_done = ctl_config_move_done; 7626 7627 ctl_datamove((union ctl_io *)ctsio); 7628 return (retval); 7629} 7630 7631int 7632ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7633{ 7634 struct scsi_per_res_in *cdb; 7635 int alloc_len, total_len = 0; 7636 /* struct scsi_per_res_in_rsrv in_data; */ 7637 struct ctl_lun *lun; 7638 struct ctl_softc *softc; 7639 7640 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7641 7642 softc = control_softc; 7643 7644 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7645 7646 alloc_len = scsi_2btoul(cdb->length); 7647 7648 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7649 7650retry: 7651 mtx_lock(&lun->lun_lock); 7652 switch (cdb->action) { 7653 case SPRI_RK: /* read keys */ 7654 total_len = sizeof(struct scsi_per_res_in_keys) + 7655 lun->pr_key_count * 7656 sizeof(struct scsi_per_res_key); 7657 break; 7658 case SPRI_RR: /* read reservation */ 7659 if (lun->flags & CTL_LUN_PR_RESERVED) 7660 total_len = sizeof(struct scsi_per_res_in_rsrv); 7661 else 7662 total_len = sizeof(struct scsi_per_res_in_header); 7663 break; 7664 case SPRI_RC: /* report capabilities */ 7665 total_len = sizeof(struct scsi_per_res_cap); 7666 break; 7667 case SPRI_RS: /* read full status */ 7668 total_len = sizeof(struct scsi_per_res_in_header) + 7669 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7670 lun->pr_key_count; 7671 break; 7672 default: 7673 panic("Invalid PR type %x", cdb->action); 7674 } 7675 mtx_unlock(&lun->lun_lock); 7676 7677 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7678 7679 if (total_len < alloc_len) { 7680 ctsio->residual = alloc_len - total_len; 7681 ctsio->kern_data_len = total_len; 7682 ctsio->kern_total_len = total_len; 7683 } else { 7684 ctsio->residual = 0; 7685 ctsio->kern_data_len = alloc_len; 7686 ctsio->kern_total_len = alloc_len; 7687 } 7688 7689 ctsio->kern_data_resid = 0; 7690 ctsio->kern_rel_offset = 0; 7691 ctsio->kern_sg_entries = 0; 7692 7693 mtx_lock(&lun->lun_lock); 7694 switch (cdb->action) { 7695 case SPRI_RK: { // read keys 7696 struct scsi_per_res_in_keys *res_keys; 7697 int i, key_count; 7698 7699 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7700 7701 /* 7702 * We had to drop the lock to allocate our buffer, which 7703 * leaves time for someone to come in with another 7704 * persistent reservation. (That is unlikely, though, 7705 * since this should be the only persistent reservation 7706 * command active right now.) 7707 */ 7708 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7709 (lun->pr_key_count * 7710 sizeof(struct scsi_per_res_key)))){ 7711 mtx_unlock(&lun->lun_lock); 7712 free(ctsio->kern_data_ptr, M_CTL); 7713 printf("%s: reservation length changed, retrying\n", 7714 __func__); 7715 goto retry; 7716 } 7717 7718 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7719 7720 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7721 lun->pr_key_count, res_keys->header.length); 7722 7723 for (i = 0, key_count = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7724 if (lun->pr_keys[i] == 0) 7725 continue; 7726 7727 /* 7728 * We used lun->pr_key_count to calculate the 7729 * size to allocate. If it turns out the number of 7730 * initiators with the registered flag set is 7731 * larger than that (i.e. they haven't been kept in 7732 * sync), we've got a problem. 7733 */ 7734 if (key_count >= lun->pr_key_count) { 7735#ifdef NEEDTOPORT 7736 csevent_log(CSC_CTL | CSC_SHELF_SW | 7737 CTL_PR_ERROR, 7738 csevent_LogType_Fault, 7739 csevent_AlertLevel_Yellow, 7740 csevent_FRU_ShelfController, 7741 csevent_FRU_Firmware, 7742 csevent_FRU_Unknown, 7743 "registered keys %d >= key " 7744 "count %d", key_count, 7745 lun->pr_key_count); 7746#endif 7747 key_count++; 7748 continue; 7749 } 7750 scsi_u64to8b(lun->pr_keys[i], 7751 res_keys->keys[key_count].key); 7752 key_count++; 7753 } 7754 break; 7755 } 7756 case SPRI_RR: { // read reservation 7757 struct scsi_per_res_in_rsrv *res; 7758 int tmp_len, header_only; 7759 7760 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7761 7762 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7763 7764 if (lun->flags & CTL_LUN_PR_RESERVED) 7765 { 7766 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7767 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7768 res->header.length); 7769 header_only = 0; 7770 } else { 7771 tmp_len = sizeof(struct scsi_per_res_in_header); 7772 scsi_ulto4b(0, res->header.length); 7773 header_only = 1; 7774 } 7775 7776 /* 7777 * We had to drop the lock to allocate our buffer, which 7778 * leaves time for someone to come in with another 7779 * persistent reservation. (That is unlikely, though, 7780 * since this should be the only persistent reservation 7781 * command active right now.) 7782 */ 7783 if (tmp_len != total_len) { 7784 mtx_unlock(&lun->lun_lock); 7785 free(ctsio->kern_data_ptr, M_CTL); 7786 printf("%s: reservation status changed, retrying\n", 7787 __func__); 7788 goto retry; 7789 } 7790 7791 /* 7792 * No reservation held, so we're done. 7793 */ 7794 if (header_only != 0) 7795 break; 7796 7797 /* 7798 * If the registration is an All Registrants type, the key 7799 * is 0, since it doesn't really matter. 7800 */ 7801 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7802 scsi_u64to8b(lun->pr_keys[lun->pr_res_idx], 7803 res->data.reservation); 7804 } 7805 res->data.scopetype = lun->res_type; 7806 break; 7807 } 7808 case SPRI_RC: //report capabilities 7809 { 7810 struct scsi_per_res_cap *res_cap; 7811 uint16_t type_mask; 7812 7813 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7814 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7815 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_5; 7816 type_mask = SPRI_TM_WR_EX_AR | 7817 SPRI_TM_EX_AC_RO | 7818 SPRI_TM_WR_EX_RO | 7819 SPRI_TM_EX_AC | 7820 SPRI_TM_WR_EX | 7821 SPRI_TM_EX_AC_AR; 7822 scsi_ulto2b(type_mask, res_cap->type_mask); 7823 break; 7824 } 7825 case SPRI_RS: { // read full status 7826 struct scsi_per_res_in_full *res_status; 7827 struct scsi_per_res_in_full_desc *res_desc; 7828 struct ctl_port *port; 7829 int i, len; 7830 7831 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7832 7833 /* 7834 * We had to drop the lock to allocate our buffer, which 7835 * leaves time for someone to come in with another 7836 * persistent reservation. (That is unlikely, though, 7837 * since this should be the only persistent reservation 7838 * command active right now.) 7839 */ 7840 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7841 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7842 lun->pr_key_count)){ 7843 mtx_unlock(&lun->lun_lock); 7844 free(ctsio->kern_data_ptr, M_CTL); 7845 printf("%s: reservation length changed, retrying\n", 7846 __func__); 7847 goto retry; 7848 } 7849 7850 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 7851 7852 res_desc = &res_status->desc[0]; 7853 for (i = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7854 if (lun->pr_keys[i] == 0) 7855 continue; 7856 7857 scsi_u64to8b(lun->pr_keys[i], res_desc->res_key.key); 7858 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7859 (lun->pr_res_idx == i || 7860 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7861 res_desc->flags = SPRI_FULL_R_HOLDER; 7862 res_desc->scopetype = lun->res_type; 7863 } 7864 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7865 res_desc->rel_trgt_port_id); 7866 len = 0; 7867 port = softc->ctl_ports[ 7868 ctl_port_idx(i / CTL_MAX_INIT_PER_PORT)]; 7869 if (port != NULL) 7870 len = ctl_create_iid(port, 7871 i % CTL_MAX_INIT_PER_PORT, 7872 res_desc->transport_id); 7873 scsi_ulto4b(len, res_desc->additional_length); 7874 res_desc = (struct scsi_per_res_in_full_desc *) 7875 &res_desc->transport_id[len]; 7876 } 7877 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7878 res_status->header.length); 7879 break; 7880 } 7881 default: 7882 /* 7883 * This is a bug, because we just checked for this above, 7884 * and should have returned an error. 7885 */ 7886 panic("Invalid PR type %x", cdb->action); 7887 break; /* NOTREACHED */ 7888 } 7889 mtx_unlock(&lun->lun_lock); 7890 7891 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7892 ctsio->be_move_done = ctl_config_move_done; 7893 7894 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7895 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7896 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7897 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7898 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7899 7900 ctl_datamove((union ctl_io *)ctsio); 7901 7902 return (CTL_RETVAL_COMPLETE); 7903} 7904 7905/* 7906 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7907 * it should return. 7908 */ 7909static int 7910ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7911 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7912 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7913 struct scsi_per_res_out_parms* param) 7914{ 7915 union ctl_ha_msg persis_io; 7916 int retval, i; 7917 int isc_retval; 7918 7919 retval = 0; 7920 7921 mtx_lock(&lun->lun_lock); 7922 if (sa_res_key == 0) { 7923 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7924 /* validate scope and type */ 7925 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7926 SPR_LU_SCOPE) { 7927 mtx_unlock(&lun->lun_lock); 7928 ctl_set_invalid_field(/*ctsio*/ ctsio, 7929 /*sks_valid*/ 1, 7930 /*command*/ 1, 7931 /*field*/ 2, 7932 /*bit_valid*/ 1, 7933 /*bit*/ 4); 7934 ctl_done((union ctl_io *)ctsio); 7935 return (1); 7936 } 7937 7938 if (type>8 || type==2 || type==4 || type==0) { 7939 mtx_unlock(&lun->lun_lock); 7940 ctl_set_invalid_field(/*ctsio*/ ctsio, 7941 /*sks_valid*/ 1, 7942 /*command*/ 1, 7943 /*field*/ 2, 7944 /*bit_valid*/ 1, 7945 /*bit*/ 0); 7946 ctl_done((union ctl_io *)ctsio); 7947 return (1); 7948 } 7949 7950 /* 7951 * Unregister everybody else and build UA for 7952 * them 7953 */ 7954 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 7955 if (i == residx || lun->pr_keys[i] == 0) 7956 continue; 7957 7958 if (!persis_offset 7959 && i <CTL_MAX_INITIATORS) 7960 lun->pending_ua[i] |= 7961 CTL_UA_REG_PREEMPT; 7962 else if (persis_offset 7963 && i >= persis_offset) 7964 lun->pending_ua[i-persis_offset] |= 7965 CTL_UA_REG_PREEMPT; 7966 lun->pr_keys[i] = 0; 7967 } 7968 lun->pr_key_count = 1; 7969 lun->res_type = type; 7970 if (lun->res_type != SPR_TYPE_WR_EX_AR 7971 && lun->res_type != SPR_TYPE_EX_AC_AR) 7972 lun->pr_res_idx = residx; 7973 7974 /* send msg to other side */ 7975 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7976 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7977 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7978 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7979 persis_io.pr.pr_info.res_type = type; 7980 memcpy(persis_io.pr.pr_info.sa_res_key, 7981 param->serv_act_res_key, 7982 sizeof(param->serv_act_res_key)); 7983 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 7984 &persis_io, sizeof(persis_io), 0)) > 7985 CTL_HA_STATUS_SUCCESS) { 7986 printf("CTL:Persis Out error returned " 7987 "from ctl_ha_msg_send %d\n", 7988 isc_retval); 7989 } 7990 } else { 7991 /* not all registrants */ 7992 mtx_unlock(&lun->lun_lock); 7993 free(ctsio->kern_data_ptr, M_CTL); 7994 ctl_set_invalid_field(ctsio, 7995 /*sks_valid*/ 1, 7996 /*command*/ 0, 7997 /*field*/ 8, 7998 /*bit_valid*/ 0, 7999 /*bit*/ 0); 8000 ctl_done((union ctl_io *)ctsio); 8001 return (1); 8002 } 8003 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8004 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 8005 int found = 0; 8006 8007 if (res_key == sa_res_key) { 8008 /* special case */ 8009 /* 8010 * The spec implies this is not good but doesn't 8011 * say what to do. There are two choices either 8012 * generate a res conflict or check condition 8013 * with illegal field in parameter data. Since 8014 * that is what is done when the sa_res_key is 8015 * zero I'll take that approach since this has 8016 * to do with the sa_res_key. 8017 */ 8018 mtx_unlock(&lun->lun_lock); 8019 free(ctsio->kern_data_ptr, M_CTL); 8020 ctl_set_invalid_field(ctsio, 8021 /*sks_valid*/ 1, 8022 /*command*/ 0, 8023 /*field*/ 8, 8024 /*bit_valid*/ 0, 8025 /*bit*/ 0); 8026 ctl_done((union ctl_io *)ctsio); 8027 return (1); 8028 } 8029 8030 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8031 if (lun->pr_keys[i] != sa_res_key) 8032 continue; 8033 8034 found = 1; 8035 lun->pr_keys[i] = 0; 8036 lun->pr_key_count--; 8037 8038 if (!persis_offset && i < CTL_MAX_INITIATORS) 8039 lun->pending_ua[i] |= CTL_UA_REG_PREEMPT; 8040 else if (persis_offset && i >= persis_offset) 8041 lun->pending_ua[i-persis_offset] |= 8042 CTL_UA_REG_PREEMPT; 8043 } 8044 if (!found) { 8045 mtx_unlock(&lun->lun_lock); 8046 free(ctsio->kern_data_ptr, M_CTL); 8047 ctl_set_reservation_conflict(ctsio); 8048 ctl_done((union ctl_io *)ctsio); 8049 return (CTL_RETVAL_COMPLETE); 8050 } 8051 /* send msg to other side */ 8052 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8053 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8054 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8055 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8056 persis_io.pr.pr_info.res_type = type; 8057 memcpy(persis_io.pr.pr_info.sa_res_key, 8058 param->serv_act_res_key, 8059 sizeof(param->serv_act_res_key)); 8060 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8061 &persis_io, sizeof(persis_io), 0)) > 8062 CTL_HA_STATUS_SUCCESS) { 8063 printf("CTL:Persis Out error returned from " 8064 "ctl_ha_msg_send %d\n", isc_retval); 8065 } 8066 } else { 8067 /* Reserved but not all registrants */ 8068 /* sa_res_key is res holder */ 8069 if (sa_res_key == lun->pr_keys[lun->pr_res_idx]) { 8070 /* validate scope and type */ 8071 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8072 SPR_LU_SCOPE) { 8073 mtx_unlock(&lun->lun_lock); 8074 ctl_set_invalid_field(/*ctsio*/ ctsio, 8075 /*sks_valid*/ 1, 8076 /*command*/ 1, 8077 /*field*/ 2, 8078 /*bit_valid*/ 1, 8079 /*bit*/ 4); 8080 ctl_done((union ctl_io *)ctsio); 8081 return (1); 8082 } 8083 8084 if (type>8 || type==2 || type==4 || type==0) { 8085 mtx_unlock(&lun->lun_lock); 8086 ctl_set_invalid_field(/*ctsio*/ ctsio, 8087 /*sks_valid*/ 1, 8088 /*command*/ 1, 8089 /*field*/ 2, 8090 /*bit_valid*/ 1, 8091 /*bit*/ 0); 8092 ctl_done((union ctl_io *)ctsio); 8093 return (1); 8094 } 8095 8096 /* 8097 * Do the following: 8098 * if sa_res_key != res_key remove all 8099 * registrants w/sa_res_key and generate UA 8100 * for these registrants(Registrations 8101 * Preempted) if it wasn't an exclusive 8102 * reservation generate UA(Reservations 8103 * Preempted) for all other registered nexuses 8104 * if the type has changed. Establish the new 8105 * reservation and holder. If res_key and 8106 * sa_res_key are the same do the above 8107 * except don't unregister the res holder. 8108 */ 8109 8110 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8111 if (i == residx || lun->pr_keys[i] == 0) 8112 continue; 8113 8114 if (sa_res_key == lun->pr_keys[i]) { 8115 lun->pr_keys[i] = 0; 8116 lun->pr_key_count--; 8117 8118 if (!persis_offset 8119 && i < CTL_MAX_INITIATORS) 8120 lun->pending_ua[i] |= 8121 CTL_UA_REG_PREEMPT; 8122 else if (persis_offset 8123 && i >= persis_offset) 8124 lun->pending_ua[i-persis_offset] |= 8125 CTL_UA_REG_PREEMPT; 8126 } else if (type != lun->res_type 8127 && (lun->res_type == SPR_TYPE_WR_EX_RO 8128 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 8129 if (!persis_offset 8130 && i < CTL_MAX_INITIATORS) 8131 lun->pending_ua[i] |= 8132 CTL_UA_RES_RELEASE; 8133 else if (persis_offset 8134 && i >= persis_offset) 8135 lun->pending_ua[ 8136 i-persis_offset] |= 8137 CTL_UA_RES_RELEASE; 8138 } 8139 } 8140 lun->res_type = type; 8141 if (lun->res_type != SPR_TYPE_WR_EX_AR 8142 && lun->res_type != SPR_TYPE_EX_AC_AR) 8143 lun->pr_res_idx = residx; 8144 else 8145 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8146 8147 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8148 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8149 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8150 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8151 persis_io.pr.pr_info.res_type = type; 8152 memcpy(persis_io.pr.pr_info.sa_res_key, 8153 param->serv_act_res_key, 8154 sizeof(param->serv_act_res_key)); 8155 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8156 &persis_io, sizeof(persis_io), 0)) > 8157 CTL_HA_STATUS_SUCCESS) { 8158 printf("CTL:Persis Out error returned " 8159 "from ctl_ha_msg_send %d\n", 8160 isc_retval); 8161 } 8162 } else { 8163 /* 8164 * sa_res_key is not the res holder just 8165 * remove registrants 8166 */ 8167 int found=0; 8168 8169 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8170 if (sa_res_key != lun->pr_keys[i]) 8171 continue; 8172 8173 found = 1; 8174 lun->pr_keys[i] = 0; 8175 lun->pr_key_count--; 8176 8177 if (!persis_offset 8178 && i < CTL_MAX_INITIATORS) 8179 lun->pending_ua[i] |= 8180 CTL_UA_REG_PREEMPT; 8181 else if (persis_offset 8182 && i >= persis_offset) 8183 lun->pending_ua[i-persis_offset] |= 8184 CTL_UA_REG_PREEMPT; 8185 } 8186 8187 if (!found) { 8188 mtx_unlock(&lun->lun_lock); 8189 free(ctsio->kern_data_ptr, M_CTL); 8190 ctl_set_reservation_conflict(ctsio); 8191 ctl_done((union ctl_io *)ctsio); 8192 return (1); 8193 } 8194 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8195 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8196 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8197 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8198 persis_io.pr.pr_info.res_type = type; 8199 memcpy(persis_io.pr.pr_info.sa_res_key, 8200 param->serv_act_res_key, 8201 sizeof(param->serv_act_res_key)); 8202 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8203 &persis_io, sizeof(persis_io), 0)) > 8204 CTL_HA_STATUS_SUCCESS) { 8205 printf("CTL:Persis Out error returned " 8206 "from ctl_ha_msg_send %d\n", 8207 isc_retval); 8208 } 8209 } 8210 } 8211 8212 lun->PRGeneration++; 8213 mtx_unlock(&lun->lun_lock); 8214 8215 return (retval); 8216} 8217 8218static void 8219ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8220{ 8221 uint64_t sa_res_key; 8222 int i; 8223 8224 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8225 8226 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8227 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8228 || sa_res_key != lun->pr_keys[lun->pr_res_idx]) { 8229 if (sa_res_key == 0) { 8230 /* 8231 * Unregister everybody else and build UA for 8232 * them 8233 */ 8234 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8235 if (i == msg->pr.pr_info.residx || 8236 lun->pr_keys[i] == 0) 8237 continue; 8238 8239 if (!persis_offset 8240 && i < CTL_MAX_INITIATORS) 8241 lun->pending_ua[i] |= 8242 CTL_UA_REG_PREEMPT; 8243 else if (persis_offset && i >= persis_offset) 8244 lun->pending_ua[i - persis_offset] |= 8245 CTL_UA_REG_PREEMPT; 8246 lun->pr_keys[i] = 0; 8247 } 8248 8249 lun->pr_key_count = 1; 8250 lun->res_type = msg->pr.pr_info.res_type; 8251 if (lun->res_type != SPR_TYPE_WR_EX_AR 8252 && lun->res_type != SPR_TYPE_EX_AC_AR) 8253 lun->pr_res_idx = msg->pr.pr_info.residx; 8254 } else { 8255 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8256 if (sa_res_key == lun->pr_keys[i]) 8257 continue; 8258 8259 lun->pr_keys[i] = 0; 8260 lun->pr_key_count--; 8261 8262 if (!persis_offset 8263 && i < persis_offset) 8264 lun->pending_ua[i] |= 8265 CTL_UA_REG_PREEMPT; 8266 else if (persis_offset 8267 && i >= persis_offset) 8268 lun->pending_ua[i - persis_offset] |= 8269 CTL_UA_REG_PREEMPT; 8270 } 8271 } 8272 } else { 8273 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8274 if (i == msg->pr.pr_info.residx || 8275 lun->pr_keys[i] == 0) 8276 continue; 8277 8278 if (sa_res_key == lun->pr_keys[i]) { 8279 lun->pr_keys[i] = 0; 8280 lun->pr_key_count--; 8281 if (!persis_offset 8282 && i < CTL_MAX_INITIATORS) 8283 lun->pending_ua[i] |= 8284 CTL_UA_REG_PREEMPT; 8285 else if (persis_offset 8286 && i >= persis_offset) 8287 lun->pending_ua[i - persis_offset] |= 8288 CTL_UA_REG_PREEMPT; 8289 } else if (msg->pr.pr_info.res_type != lun->res_type 8290 && (lun->res_type == SPR_TYPE_WR_EX_RO 8291 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8292 if (!persis_offset 8293 && i < persis_offset) 8294 lun->pending_ua[i] |= 8295 CTL_UA_RES_RELEASE; 8296 else if (persis_offset 8297 && i >= persis_offset) 8298 lun->pending_ua[i - persis_offset] |= 8299 CTL_UA_RES_RELEASE; 8300 } 8301 } 8302 lun->res_type = msg->pr.pr_info.res_type; 8303 if (lun->res_type != SPR_TYPE_WR_EX_AR 8304 && lun->res_type != SPR_TYPE_EX_AC_AR) 8305 lun->pr_res_idx = msg->pr.pr_info.residx; 8306 else 8307 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8308 } 8309 lun->PRGeneration++; 8310 8311} 8312 8313 8314int 8315ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8316{ 8317 int retval; 8318 int isc_retval; 8319 u_int32_t param_len; 8320 struct scsi_per_res_out *cdb; 8321 struct ctl_lun *lun; 8322 struct scsi_per_res_out_parms* param; 8323 struct ctl_softc *softc; 8324 uint32_t residx; 8325 uint64_t res_key, sa_res_key; 8326 uint8_t type; 8327 union ctl_ha_msg persis_io; 8328 int i; 8329 8330 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8331 8332 retval = CTL_RETVAL_COMPLETE; 8333 8334 softc = control_softc; 8335 8336 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8337 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8338 8339 /* 8340 * We only support whole-LUN scope. The scope & type are ignored for 8341 * register, register and ignore existing key and clear. 8342 * We sometimes ignore scope and type on preempts too!! 8343 * Verify reservation type here as well. 8344 */ 8345 type = cdb->scope_type & SPR_TYPE_MASK; 8346 if ((cdb->action == SPRO_RESERVE) 8347 || (cdb->action == SPRO_RELEASE)) { 8348 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8349 ctl_set_invalid_field(/*ctsio*/ ctsio, 8350 /*sks_valid*/ 1, 8351 /*command*/ 1, 8352 /*field*/ 2, 8353 /*bit_valid*/ 1, 8354 /*bit*/ 4); 8355 ctl_done((union ctl_io *)ctsio); 8356 return (CTL_RETVAL_COMPLETE); 8357 } 8358 8359 if (type>8 || type==2 || type==4 || type==0) { 8360 ctl_set_invalid_field(/*ctsio*/ ctsio, 8361 /*sks_valid*/ 1, 8362 /*command*/ 1, 8363 /*field*/ 2, 8364 /*bit_valid*/ 1, 8365 /*bit*/ 0); 8366 ctl_done((union ctl_io *)ctsio); 8367 return (CTL_RETVAL_COMPLETE); 8368 } 8369 } 8370 8371 param_len = scsi_4btoul(cdb->length); 8372 8373 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8374 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8375 ctsio->kern_data_len = param_len; 8376 ctsio->kern_total_len = param_len; 8377 ctsio->kern_data_resid = 0; 8378 ctsio->kern_rel_offset = 0; 8379 ctsio->kern_sg_entries = 0; 8380 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8381 ctsio->be_move_done = ctl_config_move_done; 8382 ctl_datamove((union ctl_io *)ctsio); 8383 8384 return (CTL_RETVAL_COMPLETE); 8385 } 8386 8387 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8388 8389 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8390 res_key = scsi_8btou64(param->res_key.key); 8391 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8392 8393 /* 8394 * Validate the reservation key here except for SPRO_REG_IGNO 8395 * This must be done for all other service actions 8396 */ 8397 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8398 mtx_lock(&lun->lun_lock); 8399 if (lun->pr_keys[residx] != 0) { 8400 if (res_key != lun->pr_keys[residx]) { 8401 /* 8402 * The current key passed in doesn't match 8403 * the one the initiator previously 8404 * registered. 8405 */ 8406 mtx_unlock(&lun->lun_lock); 8407 free(ctsio->kern_data_ptr, M_CTL); 8408 ctl_set_reservation_conflict(ctsio); 8409 ctl_done((union ctl_io *)ctsio); 8410 return (CTL_RETVAL_COMPLETE); 8411 } 8412 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8413 /* 8414 * We are not registered 8415 */ 8416 mtx_unlock(&lun->lun_lock); 8417 free(ctsio->kern_data_ptr, M_CTL); 8418 ctl_set_reservation_conflict(ctsio); 8419 ctl_done((union ctl_io *)ctsio); 8420 return (CTL_RETVAL_COMPLETE); 8421 } else if (res_key != 0) { 8422 /* 8423 * We are not registered and trying to register but 8424 * the register key isn't zero. 8425 */ 8426 mtx_unlock(&lun->lun_lock); 8427 free(ctsio->kern_data_ptr, M_CTL); 8428 ctl_set_reservation_conflict(ctsio); 8429 ctl_done((union ctl_io *)ctsio); 8430 return (CTL_RETVAL_COMPLETE); 8431 } 8432 mtx_unlock(&lun->lun_lock); 8433 } 8434 8435 switch (cdb->action & SPRO_ACTION_MASK) { 8436 case SPRO_REGISTER: 8437 case SPRO_REG_IGNO: { 8438 8439#if 0 8440 printf("Registration received\n"); 8441#endif 8442 8443 /* 8444 * We don't support any of these options, as we report in 8445 * the read capabilities request (see 8446 * ctl_persistent_reserve_in(), above). 8447 */ 8448 if ((param->flags & SPR_SPEC_I_PT) 8449 || (param->flags & SPR_ALL_TG_PT) 8450 || (param->flags & SPR_APTPL)) { 8451 int bit_ptr; 8452 8453 if (param->flags & SPR_APTPL) 8454 bit_ptr = 0; 8455 else if (param->flags & SPR_ALL_TG_PT) 8456 bit_ptr = 2; 8457 else /* SPR_SPEC_I_PT */ 8458 bit_ptr = 3; 8459 8460 free(ctsio->kern_data_ptr, M_CTL); 8461 ctl_set_invalid_field(ctsio, 8462 /*sks_valid*/ 1, 8463 /*command*/ 0, 8464 /*field*/ 20, 8465 /*bit_valid*/ 1, 8466 /*bit*/ bit_ptr); 8467 ctl_done((union ctl_io *)ctsio); 8468 return (CTL_RETVAL_COMPLETE); 8469 } 8470 8471 mtx_lock(&lun->lun_lock); 8472 8473 /* 8474 * The initiator wants to clear the 8475 * key/unregister. 8476 */ 8477 if (sa_res_key == 0) { 8478 if ((res_key == 0 8479 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8480 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8481 && lun->pr_keys[residx] == 0)) { 8482 mtx_unlock(&lun->lun_lock); 8483 goto done; 8484 } 8485 8486 lun->pr_keys[residx] = 0; 8487 lun->pr_key_count--; 8488 8489 if (residx == lun->pr_res_idx) { 8490 lun->flags &= ~CTL_LUN_PR_RESERVED; 8491 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8492 8493 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8494 || lun->res_type == SPR_TYPE_EX_AC_RO) 8495 && lun->pr_key_count) { 8496 /* 8497 * If the reservation is a registrants 8498 * only type we need to generate a UA 8499 * for other registered inits. The 8500 * sense code should be RESERVATIONS 8501 * RELEASED 8502 */ 8503 8504 for (i = 0; i < CTL_MAX_INITIATORS;i++){ 8505 if (lun->pr_keys[ 8506 i + persis_offset] == 0) 8507 continue; 8508 lun->pending_ua[i] |= 8509 CTL_UA_RES_RELEASE; 8510 } 8511 } 8512 lun->res_type = 0; 8513 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8514 if (lun->pr_key_count==0) { 8515 lun->flags &= ~CTL_LUN_PR_RESERVED; 8516 lun->res_type = 0; 8517 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8518 } 8519 } 8520 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8521 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8522 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8523 persis_io.pr.pr_info.residx = residx; 8524 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8525 &persis_io, sizeof(persis_io), 0 )) > 8526 CTL_HA_STATUS_SUCCESS) { 8527 printf("CTL:Persis Out error returned from " 8528 "ctl_ha_msg_send %d\n", isc_retval); 8529 } 8530 } else /* sa_res_key != 0 */ { 8531 8532 /* 8533 * If we aren't registered currently then increment 8534 * the key count and set the registered flag. 8535 */ 8536 if (lun->pr_keys[residx] == 0) 8537 lun->pr_key_count++; 8538 lun->pr_keys[residx] = sa_res_key; 8539 8540 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8541 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8542 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8543 persis_io.pr.pr_info.residx = residx; 8544 memcpy(persis_io.pr.pr_info.sa_res_key, 8545 param->serv_act_res_key, 8546 sizeof(param->serv_act_res_key)); 8547 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8548 &persis_io, sizeof(persis_io), 0)) > 8549 CTL_HA_STATUS_SUCCESS) { 8550 printf("CTL:Persis Out error returned from " 8551 "ctl_ha_msg_send %d\n", isc_retval); 8552 } 8553 } 8554 lun->PRGeneration++; 8555 mtx_unlock(&lun->lun_lock); 8556 8557 break; 8558 } 8559 case SPRO_RESERVE: 8560#if 0 8561 printf("Reserve executed type %d\n", type); 8562#endif 8563 mtx_lock(&lun->lun_lock); 8564 if (lun->flags & CTL_LUN_PR_RESERVED) { 8565 /* 8566 * if this isn't the reservation holder and it's 8567 * not a "all registrants" type or if the type is 8568 * different then we have a conflict 8569 */ 8570 if ((lun->pr_res_idx != residx 8571 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8572 || lun->res_type != type) { 8573 mtx_unlock(&lun->lun_lock); 8574 free(ctsio->kern_data_ptr, M_CTL); 8575 ctl_set_reservation_conflict(ctsio); 8576 ctl_done((union ctl_io *)ctsio); 8577 return (CTL_RETVAL_COMPLETE); 8578 } 8579 mtx_unlock(&lun->lun_lock); 8580 } else /* create a reservation */ { 8581 /* 8582 * If it's not an "all registrants" type record 8583 * reservation holder 8584 */ 8585 if (type != SPR_TYPE_WR_EX_AR 8586 && type != SPR_TYPE_EX_AC_AR) 8587 lun->pr_res_idx = residx; /* Res holder */ 8588 else 8589 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8590 8591 lun->flags |= CTL_LUN_PR_RESERVED; 8592 lun->res_type = type; 8593 8594 mtx_unlock(&lun->lun_lock); 8595 8596 /* send msg to other side */ 8597 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8598 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8599 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8600 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8601 persis_io.pr.pr_info.res_type = type; 8602 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8603 &persis_io, sizeof(persis_io), 0)) > 8604 CTL_HA_STATUS_SUCCESS) { 8605 printf("CTL:Persis Out error returned from " 8606 "ctl_ha_msg_send %d\n", isc_retval); 8607 } 8608 } 8609 break; 8610 8611 case SPRO_RELEASE: 8612 mtx_lock(&lun->lun_lock); 8613 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8614 /* No reservation exists return good status */ 8615 mtx_unlock(&lun->lun_lock); 8616 goto done; 8617 } 8618 /* 8619 * Is this nexus a reservation holder? 8620 */ 8621 if (lun->pr_res_idx != residx 8622 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8623 /* 8624 * not a res holder return good status but 8625 * do nothing 8626 */ 8627 mtx_unlock(&lun->lun_lock); 8628 goto done; 8629 } 8630 8631 if (lun->res_type != type) { 8632 mtx_unlock(&lun->lun_lock); 8633 free(ctsio->kern_data_ptr, M_CTL); 8634 ctl_set_illegal_pr_release(ctsio); 8635 ctl_done((union ctl_io *)ctsio); 8636 return (CTL_RETVAL_COMPLETE); 8637 } 8638 8639 /* okay to release */ 8640 lun->flags &= ~CTL_LUN_PR_RESERVED; 8641 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8642 lun->res_type = 0; 8643 8644 /* 8645 * if this isn't an exclusive access 8646 * res generate UA for all other 8647 * registrants. 8648 */ 8649 if (type != SPR_TYPE_EX_AC 8650 && type != SPR_TYPE_WR_EX) { 8651 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8652 if (i == residx || 8653 lun->pr_keys[i + persis_offset] == 0) 8654 continue; 8655 lun->pending_ua[i] |= CTL_UA_RES_RELEASE; 8656 } 8657 } 8658 mtx_unlock(&lun->lun_lock); 8659 /* Send msg to other side */ 8660 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8661 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8662 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8663 if ((isc_retval=ctl_ha_msg_send( CTL_HA_CHAN_CTL, &persis_io, 8664 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8665 printf("CTL:Persis Out error returned from " 8666 "ctl_ha_msg_send %d\n", isc_retval); 8667 } 8668 break; 8669 8670 case SPRO_CLEAR: 8671 /* send msg to other side */ 8672 8673 mtx_lock(&lun->lun_lock); 8674 lun->flags &= ~CTL_LUN_PR_RESERVED; 8675 lun->res_type = 0; 8676 lun->pr_key_count = 0; 8677 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8678 8679 lun->pr_keys[residx] = 0; 8680 8681 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) 8682 if (lun->pr_keys[i] != 0) { 8683 if (!persis_offset && i < CTL_MAX_INITIATORS) 8684 lun->pending_ua[i] |= 8685 CTL_UA_RES_PREEMPT; 8686 else if (persis_offset && i >= persis_offset) 8687 lun->pending_ua[i-persis_offset] |= 8688 CTL_UA_RES_PREEMPT; 8689 8690 lun->pr_keys[i] = 0; 8691 } 8692 lun->PRGeneration++; 8693 mtx_unlock(&lun->lun_lock); 8694 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8695 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8696 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8697 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8698 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8699 printf("CTL:Persis Out error returned from " 8700 "ctl_ha_msg_send %d\n", isc_retval); 8701 } 8702 break; 8703 8704 case SPRO_PREEMPT: 8705 case SPRO_PRE_ABO: { 8706 int nretval; 8707 8708 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8709 residx, ctsio, cdb, param); 8710 if (nretval != 0) 8711 return (CTL_RETVAL_COMPLETE); 8712 break; 8713 } 8714 default: 8715 panic("Invalid PR type %x", cdb->action); 8716 } 8717 8718done: 8719 free(ctsio->kern_data_ptr, M_CTL); 8720 ctl_set_success(ctsio); 8721 ctl_done((union ctl_io *)ctsio); 8722 8723 return (retval); 8724} 8725 8726/* 8727 * This routine is for handling a message from the other SC pertaining to 8728 * persistent reserve out. All the error checking will have been done 8729 * so only perorming the action need be done here to keep the two 8730 * in sync. 8731 */ 8732static void 8733ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8734{ 8735 struct ctl_lun *lun; 8736 struct ctl_softc *softc; 8737 int i; 8738 uint32_t targ_lun; 8739 8740 softc = control_softc; 8741 8742 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8743 lun = softc->ctl_luns[targ_lun]; 8744 mtx_lock(&lun->lun_lock); 8745 switch(msg->pr.pr_info.action) { 8746 case CTL_PR_REG_KEY: 8747 if (lun->pr_keys[msg->pr.pr_info.residx] == 0) 8748 lun->pr_key_count++; 8749 lun->pr_keys[msg->pr.pr_info.residx] = 8750 scsi_8btou64(msg->pr.pr_info.sa_res_key); 8751 lun->PRGeneration++; 8752 break; 8753 8754 case CTL_PR_UNREG_KEY: 8755 lun->pr_keys[msg->pr.pr_info.residx] = 0; 8756 lun->pr_key_count--; 8757 8758 /* XXX Need to see if the reservation has been released */ 8759 /* if so do we need to generate UA? */ 8760 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8761 lun->flags &= ~CTL_LUN_PR_RESERVED; 8762 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8763 8764 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8765 || lun->res_type == SPR_TYPE_EX_AC_RO) 8766 && lun->pr_key_count) { 8767 /* 8768 * If the reservation is a registrants 8769 * only type we need to generate a UA 8770 * for other registered inits. The 8771 * sense code should be RESERVATIONS 8772 * RELEASED 8773 */ 8774 8775 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8776 if (lun->pr_keys[i+ 8777 persis_offset] == 0) 8778 continue; 8779 8780 lun->pending_ua[i] |= 8781 CTL_UA_RES_RELEASE; 8782 } 8783 } 8784 lun->res_type = 0; 8785 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8786 if (lun->pr_key_count==0) { 8787 lun->flags &= ~CTL_LUN_PR_RESERVED; 8788 lun->res_type = 0; 8789 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8790 } 8791 } 8792 lun->PRGeneration++; 8793 break; 8794 8795 case CTL_PR_RESERVE: 8796 lun->flags |= CTL_LUN_PR_RESERVED; 8797 lun->res_type = msg->pr.pr_info.res_type; 8798 lun->pr_res_idx = msg->pr.pr_info.residx; 8799 8800 break; 8801 8802 case CTL_PR_RELEASE: 8803 /* 8804 * if this isn't an exclusive access res generate UA for all 8805 * other registrants. 8806 */ 8807 if (lun->res_type != SPR_TYPE_EX_AC 8808 && lun->res_type != SPR_TYPE_WR_EX) { 8809 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8810 if (lun->pr_keys[i+persis_offset] != 0) 8811 lun->pending_ua[i] |= 8812 CTL_UA_RES_RELEASE; 8813 } 8814 8815 lun->flags &= ~CTL_LUN_PR_RESERVED; 8816 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8817 lun->res_type = 0; 8818 break; 8819 8820 case CTL_PR_PREEMPT: 8821 ctl_pro_preempt_other(lun, msg); 8822 break; 8823 case CTL_PR_CLEAR: 8824 lun->flags &= ~CTL_LUN_PR_RESERVED; 8825 lun->res_type = 0; 8826 lun->pr_key_count = 0; 8827 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8828 8829 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8830 if (lun->pr_keys[i] == 0) 8831 continue; 8832 if (!persis_offset 8833 && i < CTL_MAX_INITIATORS) 8834 lun->pending_ua[i] |= CTL_UA_RES_PREEMPT; 8835 else if (persis_offset 8836 && i >= persis_offset) 8837 lun->pending_ua[i-persis_offset] |= 8838 CTL_UA_RES_PREEMPT; 8839 lun->pr_keys[i] = 0; 8840 } 8841 lun->PRGeneration++; 8842 break; 8843 } 8844 8845 mtx_unlock(&lun->lun_lock); 8846} 8847 8848int 8849ctl_read_write(struct ctl_scsiio *ctsio) 8850{ 8851 struct ctl_lun *lun; 8852 struct ctl_lba_len_flags *lbalen; 8853 uint64_t lba; 8854 uint32_t num_blocks; 8855 int flags, retval; 8856 int isread; 8857 8858 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8859 8860 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8861 8862 flags = 0; 8863 retval = CTL_RETVAL_COMPLETE; 8864 8865 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8866 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8867 switch (ctsio->cdb[0]) { 8868 case READ_6: 8869 case WRITE_6: { 8870 struct scsi_rw_6 *cdb; 8871 8872 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8873 8874 lba = scsi_3btoul(cdb->addr); 8875 /* only 5 bits are valid in the most significant address byte */ 8876 lba &= 0x1fffff; 8877 num_blocks = cdb->length; 8878 /* 8879 * This is correct according to SBC-2. 8880 */ 8881 if (num_blocks == 0) 8882 num_blocks = 256; 8883 break; 8884 } 8885 case READ_10: 8886 case WRITE_10: { 8887 struct scsi_rw_10 *cdb; 8888 8889 cdb = (struct scsi_rw_10 *)ctsio->cdb; 8890 if (cdb->byte2 & SRW10_FUA) 8891 flags |= CTL_LLF_FUA; 8892 if (cdb->byte2 & SRW10_DPO) 8893 flags |= CTL_LLF_DPO; 8894 lba = scsi_4btoul(cdb->addr); 8895 num_blocks = scsi_2btoul(cdb->length); 8896 break; 8897 } 8898 case WRITE_VERIFY_10: { 8899 struct scsi_write_verify_10 *cdb; 8900 8901 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 8902 flags |= CTL_LLF_FUA; 8903 if (cdb->byte2 & SWV_DPO) 8904 flags |= CTL_LLF_DPO; 8905 lba = scsi_4btoul(cdb->addr); 8906 num_blocks = scsi_2btoul(cdb->length); 8907 break; 8908 } 8909 case READ_12: 8910 case WRITE_12: { 8911 struct scsi_rw_12 *cdb; 8912 8913 cdb = (struct scsi_rw_12 *)ctsio->cdb; 8914 if (cdb->byte2 & SRW12_FUA) 8915 flags |= CTL_LLF_FUA; 8916 if (cdb->byte2 & SRW12_DPO) 8917 flags |= CTL_LLF_DPO; 8918 lba = scsi_4btoul(cdb->addr); 8919 num_blocks = scsi_4btoul(cdb->length); 8920 break; 8921 } 8922 case WRITE_VERIFY_12: { 8923 struct scsi_write_verify_12 *cdb; 8924 8925 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 8926 flags |= CTL_LLF_FUA; 8927 if (cdb->byte2 & SWV_DPO) 8928 flags |= CTL_LLF_DPO; 8929 lba = scsi_4btoul(cdb->addr); 8930 num_blocks = scsi_4btoul(cdb->length); 8931 break; 8932 } 8933 case READ_16: 8934 case WRITE_16: { 8935 struct scsi_rw_16 *cdb; 8936 8937 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8938 if (cdb->byte2 & SRW12_FUA) 8939 flags |= CTL_LLF_FUA; 8940 if (cdb->byte2 & SRW12_DPO) 8941 flags |= CTL_LLF_DPO; 8942 lba = scsi_8btou64(cdb->addr); 8943 num_blocks = scsi_4btoul(cdb->length); 8944 break; 8945 } 8946 case WRITE_ATOMIC_16: { 8947 struct scsi_rw_16 *cdb; 8948 8949 if (lun->be_lun->atomicblock == 0) { 8950 ctl_set_invalid_opcode(ctsio); 8951 ctl_done((union ctl_io *)ctsio); 8952 return (CTL_RETVAL_COMPLETE); 8953 } 8954 8955 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8956 if (cdb->byte2 & SRW12_FUA) 8957 flags |= CTL_LLF_FUA; 8958 if (cdb->byte2 & SRW12_DPO) 8959 flags |= CTL_LLF_DPO; 8960 lba = scsi_8btou64(cdb->addr); 8961 num_blocks = scsi_4btoul(cdb->length); 8962 if (num_blocks > lun->be_lun->atomicblock) { 8963 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 8964 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 8965 /*bit*/ 0); 8966 ctl_done((union ctl_io *)ctsio); 8967 return (CTL_RETVAL_COMPLETE); 8968 } 8969 break; 8970 } 8971 case WRITE_VERIFY_16: { 8972 struct scsi_write_verify_16 *cdb; 8973 8974 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 8975 flags |= CTL_LLF_FUA; 8976 if (cdb->byte2 & SWV_DPO) 8977 flags |= CTL_LLF_DPO; 8978 lba = scsi_8btou64(cdb->addr); 8979 num_blocks = scsi_4btoul(cdb->length); 8980 break; 8981 } 8982 default: 8983 /* 8984 * We got a command we don't support. This shouldn't 8985 * happen, commands should be filtered out above us. 8986 */ 8987 ctl_set_invalid_opcode(ctsio); 8988 ctl_done((union ctl_io *)ctsio); 8989 8990 return (CTL_RETVAL_COMPLETE); 8991 break; /* NOTREACHED */ 8992 } 8993 8994 /* 8995 * The first check is to make sure we're in bounds, the second 8996 * check is to catch wrap-around problems. If the lba + num blocks 8997 * is less than the lba, then we've wrapped around and the block 8998 * range is invalid anyway. 8999 */ 9000 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9001 || ((lba + num_blocks) < lba)) { 9002 ctl_set_lba_out_of_range(ctsio); 9003 ctl_done((union ctl_io *)ctsio); 9004 return (CTL_RETVAL_COMPLETE); 9005 } 9006 9007 /* 9008 * According to SBC-3, a transfer length of 0 is not an error. 9009 * Note that this cannot happen with WRITE(6) or READ(6), since 0 9010 * translates to 256 blocks for those commands. 9011 */ 9012 if (num_blocks == 0) { 9013 ctl_set_success(ctsio); 9014 ctl_done((union ctl_io *)ctsio); 9015 return (CTL_RETVAL_COMPLETE); 9016 } 9017 9018 /* Set FUA and/or DPO if caches are disabled. */ 9019 if (isread) { 9020 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9021 SCP_RCD) != 0) 9022 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 9023 } else { 9024 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9025 SCP_WCE) == 0) 9026 flags |= CTL_LLF_FUA; 9027 } 9028 9029 lbalen = (struct ctl_lba_len_flags *) 9030 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9031 lbalen->lba = lba; 9032 lbalen->len = num_blocks; 9033 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 9034 9035 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9036 ctsio->kern_rel_offset = 0; 9037 9038 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 9039 9040 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9041 9042 return (retval); 9043} 9044 9045static int 9046ctl_cnw_cont(union ctl_io *io) 9047{ 9048 struct ctl_scsiio *ctsio; 9049 struct ctl_lun *lun; 9050 struct ctl_lba_len_flags *lbalen; 9051 int retval; 9052 9053 ctsio = &io->scsiio; 9054 ctsio->io_hdr.status = CTL_STATUS_NONE; 9055 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 9056 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9057 lbalen = (struct ctl_lba_len_flags *) 9058 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9059 lbalen->flags &= ~CTL_LLF_COMPARE; 9060 lbalen->flags |= CTL_LLF_WRITE; 9061 9062 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 9063 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9064 return (retval); 9065} 9066 9067int 9068ctl_cnw(struct ctl_scsiio *ctsio) 9069{ 9070 struct ctl_lun *lun; 9071 struct ctl_lba_len_flags *lbalen; 9072 uint64_t lba; 9073 uint32_t num_blocks; 9074 int flags, retval; 9075 9076 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9077 9078 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 9079 9080 flags = 0; 9081 retval = CTL_RETVAL_COMPLETE; 9082 9083 switch (ctsio->cdb[0]) { 9084 case COMPARE_AND_WRITE: { 9085 struct scsi_compare_and_write *cdb; 9086 9087 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 9088 if (cdb->byte2 & SRW10_FUA) 9089 flags |= CTL_LLF_FUA; 9090 if (cdb->byte2 & SRW10_DPO) 9091 flags |= CTL_LLF_DPO; 9092 lba = scsi_8btou64(cdb->addr); 9093 num_blocks = cdb->length; 9094 break; 9095 } 9096 default: 9097 /* 9098 * We got a command we don't support. This shouldn't 9099 * happen, commands should be filtered out above us. 9100 */ 9101 ctl_set_invalid_opcode(ctsio); 9102 ctl_done((union ctl_io *)ctsio); 9103 9104 return (CTL_RETVAL_COMPLETE); 9105 break; /* NOTREACHED */ 9106 } 9107 9108 /* 9109 * The first check is to make sure we're in bounds, the second 9110 * check is to catch wrap-around problems. If the lba + num blocks 9111 * is less than the lba, then we've wrapped around and the block 9112 * range is invalid anyway. 9113 */ 9114 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9115 || ((lba + num_blocks) < lba)) { 9116 ctl_set_lba_out_of_range(ctsio); 9117 ctl_done((union ctl_io *)ctsio); 9118 return (CTL_RETVAL_COMPLETE); 9119 } 9120 9121 /* 9122 * According to SBC-3, a transfer length of 0 is not an error. 9123 */ 9124 if (num_blocks == 0) { 9125 ctl_set_success(ctsio); 9126 ctl_done((union ctl_io *)ctsio); 9127 return (CTL_RETVAL_COMPLETE); 9128 } 9129 9130 /* Set FUA if write cache is disabled. */ 9131 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9132 SCP_WCE) == 0) 9133 flags |= CTL_LLF_FUA; 9134 9135 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 9136 ctsio->kern_rel_offset = 0; 9137 9138 /* 9139 * Set the IO_CONT flag, so that if this I/O gets passed to 9140 * ctl_data_submit_done(), it'll get passed back to 9141 * ctl_ctl_cnw_cont() for further processing. 9142 */ 9143 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 9144 ctsio->io_cont = ctl_cnw_cont; 9145 9146 lbalen = (struct ctl_lba_len_flags *) 9147 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9148 lbalen->lba = lba; 9149 lbalen->len = num_blocks; 9150 lbalen->flags = CTL_LLF_COMPARE | flags; 9151 9152 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 9153 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9154 return (retval); 9155} 9156 9157int 9158ctl_verify(struct ctl_scsiio *ctsio) 9159{ 9160 struct ctl_lun *lun; 9161 struct ctl_lba_len_flags *lbalen; 9162 uint64_t lba; 9163 uint32_t num_blocks; 9164 int bytchk, flags; 9165 int retval; 9166 9167 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9168 9169 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 9170 9171 bytchk = 0; 9172 flags = CTL_LLF_FUA; 9173 retval = CTL_RETVAL_COMPLETE; 9174 9175 switch (ctsio->cdb[0]) { 9176 case VERIFY_10: { 9177 struct scsi_verify_10 *cdb; 9178 9179 cdb = (struct scsi_verify_10 *)ctsio->cdb; 9180 if (cdb->byte2 & SVFY_BYTCHK) 9181 bytchk = 1; 9182 if (cdb->byte2 & SVFY_DPO) 9183 flags |= CTL_LLF_DPO; 9184 lba = scsi_4btoul(cdb->addr); 9185 num_blocks = scsi_2btoul(cdb->length); 9186 break; 9187 } 9188 case VERIFY_12: { 9189 struct scsi_verify_12 *cdb; 9190 9191 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9192 if (cdb->byte2 & SVFY_BYTCHK) 9193 bytchk = 1; 9194 if (cdb->byte2 & SVFY_DPO) 9195 flags |= CTL_LLF_DPO; 9196 lba = scsi_4btoul(cdb->addr); 9197 num_blocks = scsi_4btoul(cdb->length); 9198 break; 9199 } 9200 case VERIFY_16: { 9201 struct scsi_rw_16 *cdb; 9202 9203 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9204 if (cdb->byte2 & SVFY_BYTCHK) 9205 bytchk = 1; 9206 if (cdb->byte2 & SVFY_DPO) 9207 flags |= CTL_LLF_DPO; 9208 lba = scsi_8btou64(cdb->addr); 9209 num_blocks = scsi_4btoul(cdb->length); 9210 break; 9211 } 9212 default: 9213 /* 9214 * We got a command we don't support. This shouldn't 9215 * happen, commands should be filtered out above us. 9216 */ 9217 ctl_set_invalid_opcode(ctsio); 9218 ctl_done((union ctl_io *)ctsio); 9219 return (CTL_RETVAL_COMPLETE); 9220 } 9221 9222 /* 9223 * The first check is to make sure we're in bounds, the second 9224 * check is to catch wrap-around problems. If the lba + num blocks 9225 * is less than the lba, then we've wrapped around and the block 9226 * range is invalid anyway. 9227 */ 9228 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9229 || ((lba + num_blocks) < lba)) { 9230 ctl_set_lba_out_of_range(ctsio); 9231 ctl_done((union ctl_io *)ctsio); 9232 return (CTL_RETVAL_COMPLETE); 9233 } 9234 9235 /* 9236 * According to SBC-3, a transfer length of 0 is not an error. 9237 */ 9238 if (num_blocks == 0) { 9239 ctl_set_success(ctsio); 9240 ctl_done((union ctl_io *)ctsio); 9241 return (CTL_RETVAL_COMPLETE); 9242 } 9243 9244 lbalen = (struct ctl_lba_len_flags *) 9245 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9246 lbalen->lba = lba; 9247 lbalen->len = num_blocks; 9248 if (bytchk) { 9249 lbalen->flags = CTL_LLF_COMPARE | flags; 9250 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9251 } else { 9252 lbalen->flags = CTL_LLF_VERIFY | flags; 9253 ctsio->kern_total_len = 0; 9254 } 9255 ctsio->kern_rel_offset = 0; 9256 9257 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9258 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9259 return (retval); 9260} 9261 9262int 9263ctl_report_luns(struct ctl_scsiio *ctsio) 9264{ 9265 struct scsi_report_luns *cdb; 9266 struct scsi_report_luns_data *lun_data; 9267 struct ctl_lun *lun, *request_lun; 9268 int num_luns, retval; 9269 uint32_t alloc_len, lun_datalen; 9270 int num_filled, well_known; 9271 uint32_t initidx, targ_lun_id, lun_id; 9272 9273 retval = CTL_RETVAL_COMPLETE; 9274 well_known = 0; 9275 9276 cdb = (struct scsi_report_luns *)ctsio->cdb; 9277 9278 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9279 9280 mtx_lock(&control_softc->ctl_lock); 9281 num_luns = control_softc->num_luns; 9282 mtx_unlock(&control_softc->ctl_lock); 9283 9284 switch (cdb->select_report) { 9285 case RPL_REPORT_DEFAULT: 9286 case RPL_REPORT_ALL: 9287 break; 9288 case RPL_REPORT_WELLKNOWN: 9289 well_known = 1; 9290 num_luns = 0; 9291 break; 9292 default: 9293 ctl_set_invalid_field(ctsio, 9294 /*sks_valid*/ 1, 9295 /*command*/ 1, 9296 /*field*/ 2, 9297 /*bit_valid*/ 0, 9298 /*bit*/ 0); 9299 ctl_done((union ctl_io *)ctsio); 9300 return (retval); 9301 break; /* NOTREACHED */ 9302 } 9303 9304 alloc_len = scsi_4btoul(cdb->length); 9305 /* 9306 * The initiator has to allocate at least 16 bytes for this request, 9307 * so he can at least get the header and the first LUN. Otherwise 9308 * we reject the request (per SPC-3 rev 14, section 6.21). 9309 */ 9310 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9311 sizeof(struct scsi_report_luns_lundata))) { 9312 ctl_set_invalid_field(ctsio, 9313 /*sks_valid*/ 1, 9314 /*command*/ 1, 9315 /*field*/ 6, 9316 /*bit_valid*/ 0, 9317 /*bit*/ 0); 9318 ctl_done((union ctl_io *)ctsio); 9319 return (retval); 9320 } 9321 9322 request_lun = (struct ctl_lun *) 9323 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9324 9325 lun_datalen = sizeof(*lun_data) + 9326 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9327 9328 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9329 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9330 ctsio->kern_sg_entries = 0; 9331 9332 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9333 9334 mtx_lock(&control_softc->ctl_lock); 9335 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9336 lun_id = ctl_map_lun(ctsio->io_hdr.nexus.targ_port, targ_lun_id); 9337 if (lun_id >= CTL_MAX_LUNS) 9338 continue; 9339 lun = control_softc->ctl_luns[lun_id]; 9340 if (lun == NULL) 9341 continue; 9342 9343 if (targ_lun_id <= 0xff) { 9344 /* 9345 * Peripheral addressing method, bus number 0. 9346 */ 9347 lun_data->luns[num_filled].lundata[0] = 9348 RPL_LUNDATA_ATYP_PERIPH; 9349 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9350 num_filled++; 9351 } else if (targ_lun_id <= 0x3fff) { 9352 /* 9353 * Flat addressing method. 9354 */ 9355 lun_data->luns[num_filled].lundata[0] = 9356 RPL_LUNDATA_ATYP_FLAT | (targ_lun_id >> 8); 9357 lun_data->luns[num_filled].lundata[1] = 9358 (targ_lun_id & 0xff); 9359 num_filled++; 9360 } else if (targ_lun_id <= 0xffffff) { 9361 /* 9362 * Extended flat addressing method. 9363 */ 9364 lun_data->luns[num_filled].lundata[0] = 9365 RPL_LUNDATA_ATYP_EXTLUN | 0x12; 9366 scsi_ulto3b(targ_lun_id, 9367 &lun_data->luns[num_filled].lundata[1]); 9368 num_filled++; 9369 } else { 9370 printf("ctl_report_luns: bogus LUN number %jd, " 9371 "skipping\n", (intmax_t)targ_lun_id); 9372 } 9373 /* 9374 * According to SPC-3, rev 14 section 6.21: 9375 * 9376 * "The execution of a REPORT LUNS command to any valid and 9377 * installed logical unit shall clear the REPORTED LUNS DATA 9378 * HAS CHANGED unit attention condition for all logical 9379 * units of that target with respect to the requesting 9380 * initiator. A valid and installed logical unit is one 9381 * having a PERIPHERAL QUALIFIER of 000b in the standard 9382 * INQUIRY data (see 6.4.2)." 9383 * 9384 * If request_lun is NULL, the LUN this report luns command 9385 * was issued to is either disabled or doesn't exist. In that 9386 * case, we shouldn't clear any pending lun change unit 9387 * attention. 9388 */ 9389 if (request_lun != NULL) { 9390 mtx_lock(&lun->lun_lock); 9391 lun->pending_ua[initidx] &= ~CTL_UA_LUN_CHANGE; 9392 mtx_unlock(&lun->lun_lock); 9393 } 9394 } 9395 mtx_unlock(&control_softc->ctl_lock); 9396 9397 /* 9398 * It's quite possible that we've returned fewer LUNs than we allocated 9399 * space for. Trim it. 9400 */ 9401 lun_datalen = sizeof(*lun_data) + 9402 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9403 9404 if (lun_datalen < alloc_len) { 9405 ctsio->residual = alloc_len - lun_datalen; 9406 ctsio->kern_data_len = lun_datalen; 9407 ctsio->kern_total_len = lun_datalen; 9408 } else { 9409 ctsio->residual = 0; 9410 ctsio->kern_data_len = alloc_len; 9411 ctsio->kern_total_len = alloc_len; 9412 } 9413 ctsio->kern_data_resid = 0; 9414 ctsio->kern_rel_offset = 0; 9415 ctsio->kern_sg_entries = 0; 9416 9417 /* 9418 * We set this to the actual data length, regardless of how much 9419 * space we actually have to return results. If the user looks at 9420 * this value, he'll know whether or not he allocated enough space 9421 * and reissue the command if necessary. We don't support well 9422 * known logical units, so if the user asks for that, return none. 9423 */ 9424 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9425 9426 /* 9427 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9428 * this request. 9429 */ 9430 ctsio->scsi_status = SCSI_STATUS_OK; 9431 9432 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9433 ctsio->be_move_done = ctl_config_move_done; 9434 ctl_datamove((union ctl_io *)ctsio); 9435 9436 return (retval); 9437} 9438 9439int 9440ctl_request_sense(struct ctl_scsiio *ctsio) 9441{ 9442 struct scsi_request_sense *cdb; 9443 struct scsi_sense_data *sense_ptr; 9444 struct ctl_lun *lun; 9445 uint32_t initidx; 9446 int have_error; 9447 scsi_sense_data_type sense_format; 9448 9449 cdb = (struct scsi_request_sense *)ctsio->cdb; 9450 9451 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9452 9453 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9454 9455 /* 9456 * Determine which sense format the user wants. 9457 */ 9458 if (cdb->byte2 & SRS_DESC) 9459 sense_format = SSD_TYPE_DESC; 9460 else 9461 sense_format = SSD_TYPE_FIXED; 9462 9463 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9464 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9465 ctsio->kern_sg_entries = 0; 9466 9467 /* 9468 * struct scsi_sense_data, which is currently set to 256 bytes, is 9469 * larger than the largest allowed value for the length field in the 9470 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9471 */ 9472 ctsio->residual = 0; 9473 ctsio->kern_data_len = cdb->length; 9474 ctsio->kern_total_len = cdb->length; 9475 9476 ctsio->kern_data_resid = 0; 9477 ctsio->kern_rel_offset = 0; 9478 ctsio->kern_sg_entries = 0; 9479 9480 /* 9481 * If we don't have a LUN, we don't have any pending sense. 9482 */ 9483 if (lun == NULL) 9484 goto no_sense; 9485 9486 have_error = 0; 9487 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9488 /* 9489 * Check for pending sense, and then for pending unit attentions. 9490 * Pending sense gets returned first, then pending unit attentions. 9491 */ 9492 mtx_lock(&lun->lun_lock); 9493#ifdef CTL_WITH_CA 9494 if (ctl_is_set(lun->have_ca, initidx)) { 9495 scsi_sense_data_type stored_format; 9496 9497 /* 9498 * Check to see which sense format was used for the stored 9499 * sense data. 9500 */ 9501 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9502 9503 /* 9504 * If the user requested a different sense format than the 9505 * one we stored, then we need to convert it to the other 9506 * format. If we're going from descriptor to fixed format 9507 * sense data, we may lose things in translation, depending 9508 * on what options were used. 9509 * 9510 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9511 * for some reason we'll just copy it out as-is. 9512 */ 9513 if ((stored_format == SSD_TYPE_FIXED) 9514 && (sense_format == SSD_TYPE_DESC)) 9515 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9516 &lun->pending_sense[initidx], 9517 (struct scsi_sense_data_desc *)sense_ptr); 9518 else if ((stored_format == SSD_TYPE_DESC) 9519 && (sense_format == SSD_TYPE_FIXED)) 9520 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9521 &lun->pending_sense[initidx], 9522 (struct scsi_sense_data_fixed *)sense_ptr); 9523 else 9524 memcpy(sense_ptr, &lun->pending_sense[initidx], 9525 ctl_min(sizeof(*sense_ptr), 9526 sizeof(lun->pending_sense[initidx]))); 9527 9528 ctl_clear_mask(lun->have_ca, initidx); 9529 have_error = 1; 9530 } else 9531#endif 9532 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 9533 ctl_ua_type ua_type; 9534 9535 ua_type = ctl_build_ua(&lun->pending_ua[initidx], 9536 sense_ptr, sense_format); 9537 if (ua_type != CTL_UA_NONE) 9538 have_error = 1; 9539 } 9540 mtx_unlock(&lun->lun_lock); 9541 9542 /* 9543 * We already have a pending error, return it. 9544 */ 9545 if (have_error != 0) { 9546 /* 9547 * We report the SCSI status as OK, since the status of the 9548 * request sense command itself is OK. 9549 */ 9550 ctsio->scsi_status = SCSI_STATUS_OK; 9551 9552 /* 9553 * We report 0 for the sense length, because we aren't doing 9554 * autosense in this case. We're reporting sense as 9555 * parameter data. 9556 */ 9557 ctsio->sense_len = 0; 9558 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9559 ctsio->be_move_done = ctl_config_move_done; 9560 ctl_datamove((union ctl_io *)ctsio); 9561 9562 return (CTL_RETVAL_COMPLETE); 9563 } 9564 9565no_sense: 9566 9567 /* 9568 * No sense information to report, so we report that everything is 9569 * okay. 9570 */ 9571 ctl_set_sense_data(sense_ptr, 9572 lun, 9573 sense_format, 9574 /*current_error*/ 1, 9575 /*sense_key*/ SSD_KEY_NO_SENSE, 9576 /*asc*/ 0x00, 9577 /*ascq*/ 0x00, 9578 SSD_ELEM_NONE); 9579 9580 ctsio->scsi_status = SCSI_STATUS_OK; 9581 9582 /* 9583 * We report 0 for the sense length, because we aren't doing 9584 * autosense in this case. We're reporting sense as parameter data. 9585 */ 9586 ctsio->sense_len = 0; 9587 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9588 ctsio->be_move_done = ctl_config_move_done; 9589 ctl_datamove((union ctl_io *)ctsio); 9590 9591 return (CTL_RETVAL_COMPLETE); 9592} 9593 9594int 9595ctl_tur(struct ctl_scsiio *ctsio) 9596{ 9597 9598 CTL_DEBUG_PRINT(("ctl_tur\n")); 9599 9600 ctl_set_success(ctsio); 9601 ctl_done((union ctl_io *)ctsio); 9602 9603 return (CTL_RETVAL_COMPLETE); 9604} 9605 9606#ifdef notyet 9607static int 9608ctl_cmddt_inquiry(struct ctl_scsiio *ctsio) 9609{ 9610 9611} 9612#endif 9613 9614static int 9615ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9616{ 9617 struct scsi_vpd_supported_pages *pages; 9618 int sup_page_size; 9619 struct ctl_lun *lun; 9620 9621 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9622 9623 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9624 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9625 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9626 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9627 ctsio->kern_sg_entries = 0; 9628 9629 if (sup_page_size < alloc_len) { 9630 ctsio->residual = alloc_len - sup_page_size; 9631 ctsio->kern_data_len = sup_page_size; 9632 ctsio->kern_total_len = sup_page_size; 9633 } else { 9634 ctsio->residual = 0; 9635 ctsio->kern_data_len = alloc_len; 9636 ctsio->kern_total_len = alloc_len; 9637 } 9638 ctsio->kern_data_resid = 0; 9639 ctsio->kern_rel_offset = 0; 9640 ctsio->kern_sg_entries = 0; 9641 9642 /* 9643 * The control device is always connected. The disk device, on the 9644 * other hand, may not be online all the time. Need to change this 9645 * to figure out whether the disk device is actually online or not. 9646 */ 9647 if (lun != NULL) 9648 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9649 lun->be_lun->lun_type; 9650 else 9651 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9652 9653 pages->length = SCSI_EVPD_NUM_SUPPORTED_PAGES; 9654 /* Supported VPD pages */ 9655 pages->page_list[0] = SVPD_SUPPORTED_PAGES; 9656 /* Serial Number */ 9657 pages->page_list[1] = SVPD_UNIT_SERIAL_NUMBER; 9658 /* Device Identification */ 9659 pages->page_list[2] = SVPD_DEVICE_ID; 9660 /* Extended INQUIRY Data */ 9661 pages->page_list[3] = SVPD_EXTENDED_INQUIRY_DATA; 9662 /* Mode Page Policy */ 9663 pages->page_list[4] = SVPD_MODE_PAGE_POLICY; 9664 /* SCSI Ports */ 9665 pages->page_list[5] = SVPD_SCSI_PORTS; 9666 /* Third-party Copy */ 9667 pages->page_list[6] = SVPD_SCSI_TPC; 9668 /* Block limits */ 9669 pages->page_list[7] = SVPD_BLOCK_LIMITS; 9670 /* Block Device Characteristics */ 9671 pages->page_list[8] = SVPD_BDC; 9672 /* Logical Block Provisioning */ 9673 pages->page_list[9] = SVPD_LBP; 9674 9675 ctsio->scsi_status = SCSI_STATUS_OK; 9676 9677 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9678 ctsio->be_move_done = ctl_config_move_done; 9679 ctl_datamove((union ctl_io *)ctsio); 9680 9681 return (CTL_RETVAL_COMPLETE); 9682} 9683 9684static int 9685ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9686{ 9687 struct scsi_vpd_unit_serial_number *sn_ptr; 9688 struct ctl_lun *lun; 9689 int data_len; 9690 9691 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9692 9693 data_len = 4 + CTL_SN_LEN; 9694 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9695 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9696 if (data_len < alloc_len) { 9697 ctsio->residual = alloc_len - data_len; 9698 ctsio->kern_data_len = data_len; 9699 ctsio->kern_total_len = data_len; 9700 } else { 9701 ctsio->residual = 0; 9702 ctsio->kern_data_len = alloc_len; 9703 ctsio->kern_total_len = alloc_len; 9704 } 9705 ctsio->kern_data_resid = 0; 9706 ctsio->kern_rel_offset = 0; 9707 ctsio->kern_sg_entries = 0; 9708 9709 /* 9710 * The control device is always connected. The disk device, on the 9711 * other hand, may not be online all the time. Need to change this 9712 * to figure out whether the disk device is actually online or not. 9713 */ 9714 if (lun != NULL) 9715 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9716 lun->be_lun->lun_type; 9717 else 9718 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9719 9720 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9721 sn_ptr->length = CTL_SN_LEN; 9722 /* 9723 * If we don't have a LUN, we just leave the serial number as 9724 * all spaces. 9725 */ 9726 if (lun != NULL) { 9727 strncpy((char *)sn_ptr->serial_num, 9728 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9729 } else 9730 memset(sn_ptr->serial_num, 0x20, CTL_SN_LEN); 9731 ctsio->scsi_status = SCSI_STATUS_OK; 9732 9733 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9734 ctsio->be_move_done = ctl_config_move_done; 9735 ctl_datamove((union ctl_io *)ctsio); 9736 9737 return (CTL_RETVAL_COMPLETE); 9738} 9739 9740 9741static int 9742ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9743{ 9744 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9745 struct ctl_lun *lun; 9746 int data_len; 9747 9748 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9749 9750 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9751 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9752 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9753 ctsio->kern_sg_entries = 0; 9754 9755 if (data_len < alloc_len) { 9756 ctsio->residual = alloc_len - data_len; 9757 ctsio->kern_data_len = data_len; 9758 ctsio->kern_total_len = data_len; 9759 } else { 9760 ctsio->residual = 0; 9761 ctsio->kern_data_len = alloc_len; 9762 ctsio->kern_total_len = alloc_len; 9763 } 9764 ctsio->kern_data_resid = 0; 9765 ctsio->kern_rel_offset = 0; 9766 ctsio->kern_sg_entries = 0; 9767 9768 /* 9769 * The control device is always connected. The disk device, on the 9770 * other hand, may not be online all the time. 9771 */ 9772 if (lun != NULL) 9773 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9774 lun->be_lun->lun_type; 9775 else 9776 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9777 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9778 eid_ptr->page_length = data_len - 4; 9779 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9780 eid_ptr->flags3 = SVPD_EID_V_SUP; 9781 9782 ctsio->scsi_status = SCSI_STATUS_OK; 9783 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9784 ctsio->be_move_done = ctl_config_move_done; 9785 ctl_datamove((union ctl_io *)ctsio); 9786 9787 return (CTL_RETVAL_COMPLETE); 9788} 9789 9790static int 9791ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9792{ 9793 struct scsi_vpd_mode_page_policy *mpp_ptr; 9794 struct ctl_lun *lun; 9795 int data_len; 9796 9797 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9798 9799 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9800 sizeof(struct scsi_vpd_mode_page_policy_descr); 9801 9802 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9803 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9804 ctsio->kern_sg_entries = 0; 9805 9806 if (data_len < alloc_len) { 9807 ctsio->residual = alloc_len - data_len; 9808 ctsio->kern_data_len = data_len; 9809 ctsio->kern_total_len = data_len; 9810 } else { 9811 ctsio->residual = 0; 9812 ctsio->kern_data_len = alloc_len; 9813 ctsio->kern_total_len = alloc_len; 9814 } 9815 ctsio->kern_data_resid = 0; 9816 ctsio->kern_rel_offset = 0; 9817 ctsio->kern_sg_entries = 0; 9818 9819 /* 9820 * The control device is always connected. The disk device, on the 9821 * other hand, may not be online all the time. 9822 */ 9823 if (lun != NULL) 9824 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9825 lun->be_lun->lun_type; 9826 else 9827 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9828 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9829 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9830 mpp_ptr->descr[0].page_code = 0x3f; 9831 mpp_ptr->descr[0].subpage_code = 0xff; 9832 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9833 9834 ctsio->scsi_status = SCSI_STATUS_OK; 9835 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9836 ctsio->be_move_done = ctl_config_move_done; 9837 ctl_datamove((union ctl_io *)ctsio); 9838 9839 return (CTL_RETVAL_COMPLETE); 9840} 9841 9842static int 9843ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9844{ 9845 struct scsi_vpd_device_id *devid_ptr; 9846 struct scsi_vpd_id_descriptor *desc; 9847 struct ctl_softc *ctl_softc; 9848 struct ctl_lun *lun; 9849 struct ctl_port *port; 9850 int data_len; 9851 uint8_t proto; 9852 9853 ctl_softc = control_softc; 9854 9855 port = ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]; 9856 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9857 9858 data_len = sizeof(struct scsi_vpd_device_id) + 9859 sizeof(struct scsi_vpd_id_descriptor) + 9860 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9861 sizeof(struct scsi_vpd_id_descriptor) + 9862 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9863 if (lun && lun->lun_devid) 9864 data_len += lun->lun_devid->len; 9865 if (port->port_devid) 9866 data_len += port->port_devid->len; 9867 if (port->target_devid) 9868 data_len += port->target_devid->len; 9869 9870 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9871 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9872 ctsio->kern_sg_entries = 0; 9873 9874 if (data_len < alloc_len) { 9875 ctsio->residual = alloc_len - data_len; 9876 ctsio->kern_data_len = data_len; 9877 ctsio->kern_total_len = data_len; 9878 } else { 9879 ctsio->residual = 0; 9880 ctsio->kern_data_len = alloc_len; 9881 ctsio->kern_total_len = alloc_len; 9882 } 9883 ctsio->kern_data_resid = 0; 9884 ctsio->kern_rel_offset = 0; 9885 ctsio->kern_sg_entries = 0; 9886 9887 /* 9888 * The control device is always connected. The disk device, on the 9889 * other hand, may not be online all the time. 9890 */ 9891 if (lun != NULL) 9892 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9893 lun->be_lun->lun_type; 9894 else 9895 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9896 devid_ptr->page_code = SVPD_DEVICE_ID; 9897 scsi_ulto2b(data_len - 4, devid_ptr->length); 9898 9899 if (port->port_type == CTL_PORT_FC) 9900 proto = SCSI_PROTO_FC << 4; 9901 else if (port->port_type == CTL_PORT_ISCSI) 9902 proto = SCSI_PROTO_ISCSI << 4; 9903 else 9904 proto = SCSI_PROTO_SPI << 4; 9905 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9906 9907 /* 9908 * We're using a LUN association here. i.e., this device ID is a 9909 * per-LUN identifier. 9910 */ 9911 if (lun && lun->lun_devid) { 9912 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9913 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9914 lun->lun_devid->len); 9915 } 9916 9917 /* 9918 * This is for the WWPN which is a port association. 9919 */ 9920 if (port->port_devid) { 9921 memcpy(desc, port->port_devid->data, port->port_devid->len); 9922 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9923 port->port_devid->len); 9924 } 9925 9926 /* 9927 * This is for the Relative Target Port(type 4h) identifier 9928 */ 9929 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9930 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9931 SVPD_ID_TYPE_RELTARG; 9932 desc->length = 4; 9933 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9934 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9935 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9936 9937 /* 9938 * This is for the Target Port Group(type 5h) identifier 9939 */ 9940 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9941 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9942 SVPD_ID_TYPE_TPORTGRP; 9943 desc->length = 4; 9944 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS + 1, 9945 &desc->identifier[2]); 9946 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9947 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9948 9949 /* 9950 * This is for the Target identifier 9951 */ 9952 if (port->target_devid) { 9953 memcpy(desc, port->target_devid->data, port->target_devid->len); 9954 } 9955 9956 ctsio->scsi_status = SCSI_STATUS_OK; 9957 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9958 ctsio->be_move_done = ctl_config_move_done; 9959 ctl_datamove((union ctl_io *)ctsio); 9960 9961 return (CTL_RETVAL_COMPLETE); 9962} 9963 9964static int 9965ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 9966{ 9967 struct ctl_softc *softc = control_softc; 9968 struct scsi_vpd_scsi_ports *sp; 9969 struct scsi_vpd_port_designation *pd; 9970 struct scsi_vpd_port_designation_cont *pdc; 9971 struct ctl_lun *lun; 9972 struct ctl_port *port; 9973 int data_len, num_target_ports, iid_len, id_len, g, pg, p; 9974 int num_target_port_groups; 9975 9976 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9977 9978 if (softc->is_single) 9979 num_target_port_groups = 1; 9980 else 9981 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 9982 num_target_ports = 0; 9983 iid_len = 0; 9984 id_len = 0; 9985 mtx_lock(&softc->ctl_lock); 9986 STAILQ_FOREACH(port, &softc->port_list, links) { 9987 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9988 continue; 9989 if (lun != NULL && 9990 ctl_map_lun_back(port->targ_port, lun->lun) >= 9991 CTL_MAX_LUNS) 9992 continue; 9993 num_target_ports++; 9994 if (port->init_devid) 9995 iid_len += port->init_devid->len; 9996 if (port->port_devid) 9997 id_len += port->port_devid->len; 9998 } 9999 mtx_unlock(&softc->ctl_lock); 10000 10001 data_len = sizeof(struct scsi_vpd_scsi_ports) + num_target_port_groups * 10002 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 10003 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 10004 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10005 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 10006 ctsio->kern_sg_entries = 0; 10007 10008 if (data_len < alloc_len) { 10009 ctsio->residual = alloc_len - data_len; 10010 ctsio->kern_data_len = data_len; 10011 ctsio->kern_total_len = data_len; 10012 } else { 10013 ctsio->residual = 0; 10014 ctsio->kern_data_len = alloc_len; 10015 ctsio->kern_total_len = alloc_len; 10016 } 10017 ctsio->kern_data_resid = 0; 10018 ctsio->kern_rel_offset = 0; 10019 ctsio->kern_sg_entries = 0; 10020 10021 /* 10022 * The control device is always connected. The disk device, on the 10023 * other hand, may not be online all the time. Need to change this 10024 * to figure out whether the disk device is actually online or not. 10025 */ 10026 if (lun != NULL) 10027 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 10028 lun->be_lun->lun_type; 10029 else 10030 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10031 10032 sp->page_code = SVPD_SCSI_PORTS; 10033 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 10034 sp->page_length); 10035 pd = &sp->design[0]; 10036 10037 mtx_lock(&softc->ctl_lock); 10038 pg = softc->port_offset / CTL_MAX_PORTS; 10039 for (g = 0; g < num_target_port_groups; g++) { 10040 STAILQ_FOREACH(port, &softc->port_list, links) { 10041 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10042 continue; 10043 if (lun != NULL && 10044 ctl_map_lun_back(port->targ_port, lun->lun) >= 10045 CTL_MAX_LUNS) 10046 continue; 10047 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 10048 scsi_ulto2b(p, pd->relative_port_id); 10049 if (port->init_devid && g == pg) { 10050 iid_len = port->init_devid->len; 10051 memcpy(pd->initiator_transportid, 10052 port->init_devid->data, port->init_devid->len); 10053 } else 10054 iid_len = 0; 10055 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 10056 pdc = (struct scsi_vpd_port_designation_cont *) 10057 (&pd->initiator_transportid[iid_len]); 10058 if (port->port_devid && g == pg) { 10059 id_len = port->port_devid->len; 10060 memcpy(pdc->target_port_descriptors, 10061 port->port_devid->data, port->port_devid->len); 10062 } else 10063 id_len = 0; 10064 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 10065 pd = (struct scsi_vpd_port_designation *) 10066 ((uint8_t *)pdc->target_port_descriptors + id_len); 10067 } 10068 } 10069 mtx_unlock(&softc->ctl_lock); 10070 10071 ctsio->scsi_status = SCSI_STATUS_OK; 10072 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10073 ctsio->be_move_done = ctl_config_move_done; 10074 ctl_datamove((union ctl_io *)ctsio); 10075 10076 return (CTL_RETVAL_COMPLETE); 10077} 10078 10079static int 10080ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 10081{ 10082 struct scsi_vpd_block_limits *bl_ptr; 10083 struct ctl_lun *lun; 10084 int bs; 10085 10086 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10087 10088 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 10089 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 10090 ctsio->kern_sg_entries = 0; 10091 10092 if (sizeof(*bl_ptr) < alloc_len) { 10093 ctsio->residual = alloc_len - sizeof(*bl_ptr); 10094 ctsio->kern_data_len = sizeof(*bl_ptr); 10095 ctsio->kern_total_len = sizeof(*bl_ptr); 10096 } else { 10097 ctsio->residual = 0; 10098 ctsio->kern_data_len = alloc_len; 10099 ctsio->kern_total_len = alloc_len; 10100 } 10101 ctsio->kern_data_resid = 0; 10102 ctsio->kern_rel_offset = 0; 10103 ctsio->kern_sg_entries = 0; 10104 10105 /* 10106 * The control device is always connected. The disk device, on the 10107 * other hand, may not be online all the time. Need to change this 10108 * to figure out whether the disk device is actually online or not. 10109 */ 10110 if (lun != NULL) 10111 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10112 lun->be_lun->lun_type; 10113 else 10114 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10115 10116 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 10117 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 10118 bl_ptr->max_cmp_write_len = 0xff; 10119 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 10120 if (lun != NULL) { 10121 bs = lun->be_lun->blocksize; 10122 scsi_ulto4b(MAXPHYS / bs, bl_ptr->opt_txfer_len); 10123 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10124 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 10125 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 10126 if (lun->be_lun->pblockexp != 0) { 10127 scsi_ulto4b((1 << lun->be_lun->pblockexp), 10128 bl_ptr->opt_unmap_grain); 10129 scsi_ulto4b(0x80000000 | lun->be_lun->pblockoff, 10130 bl_ptr->unmap_grain_align); 10131 } 10132 } 10133 scsi_ulto4b(lun->be_lun->atomicblock, 10134 bl_ptr->max_atomic_transfer_length); 10135 scsi_ulto4b(0, bl_ptr->atomic_alignment); 10136 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 10137 } 10138 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 10139 10140 ctsio->scsi_status = SCSI_STATUS_OK; 10141 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10142 ctsio->be_move_done = ctl_config_move_done; 10143 ctl_datamove((union ctl_io *)ctsio); 10144 10145 return (CTL_RETVAL_COMPLETE); 10146} 10147 10148static int 10149ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 10150{ 10151 struct scsi_vpd_block_device_characteristics *bdc_ptr; 10152 struct ctl_lun *lun; 10153 const char *value; 10154 u_int i; 10155 10156 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10157 10158 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 10159 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 10160 ctsio->kern_sg_entries = 0; 10161 10162 if (sizeof(*bdc_ptr) < alloc_len) { 10163 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 10164 ctsio->kern_data_len = sizeof(*bdc_ptr); 10165 ctsio->kern_total_len = sizeof(*bdc_ptr); 10166 } else { 10167 ctsio->residual = 0; 10168 ctsio->kern_data_len = alloc_len; 10169 ctsio->kern_total_len = alloc_len; 10170 } 10171 ctsio->kern_data_resid = 0; 10172 ctsio->kern_rel_offset = 0; 10173 ctsio->kern_sg_entries = 0; 10174 10175 /* 10176 * The control device is always connected. The disk device, on the 10177 * other hand, may not be online all the time. Need to change this 10178 * to figure out whether the disk device is actually online or not. 10179 */ 10180 if (lun != NULL) 10181 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10182 lun->be_lun->lun_type; 10183 else 10184 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10185 bdc_ptr->page_code = SVPD_BDC; 10186 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 10187 if (lun != NULL && 10188 (value = ctl_get_opt(&lun->be_lun->options, "rpm")) != NULL) 10189 i = strtol(value, NULL, 0); 10190 else 10191 i = CTL_DEFAULT_ROTATION_RATE; 10192 scsi_ulto2b(i, bdc_ptr->medium_rotation_rate); 10193 if (lun != NULL && 10194 (value = ctl_get_opt(&lun->be_lun->options, "formfactor")) != NULL) 10195 i = strtol(value, NULL, 0); 10196 else 10197 i = 0; 10198 bdc_ptr->wab_wac_ff = (i & 0x0f); 10199 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 10200 10201 ctsio->scsi_status = SCSI_STATUS_OK; 10202 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10203 ctsio->be_move_done = ctl_config_move_done; 10204 ctl_datamove((union ctl_io *)ctsio); 10205 10206 return (CTL_RETVAL_COMPLETE); 10207} 10208 10209static int 10210ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10211{ 10212 struct scsi_vpd_logical_block_prov *lbp_ptr; 10213 struct ctl_lun *lun; 10214 10215 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10216 10217 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10218 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10219 ctsio->kern_sg_entries = 0; 10220 10221 if (sizeof(*lbp_ptr) < alloc_len) { 10222 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10223 ctsio->kern_data_len = sizeof(*lbp_ptr); 10224 ctsio->kern_total_len = sizeof(*lbp_ptr); 10225 } else { 10226 ctsio->residual = 0; 10227 ctsio->kern_data_len = alloc_len; 10228 ctsio->kern_total_len = alloc_len; 10229 } 10230 ctsio->kern_data_resid = 0; 10231 ctsio->kern_rel_offset = 0; 10232 ctsio->kern_sg_entries = 0; 10233 10234 /* 10235 * The control device is always connected. The disk device, on the 10236 * other hand, may not be online all the time. Need to change this 10237 * to figure out whether the disk device is actually online or not. 10238 */ 10239 if (lun != NULL) 10240 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10241 lun->be_lun->lun_type; 10242 else 10243 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10244 10245 lbp_ptr->page_code = SVPD_LBP; 10246 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10247 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10248 lbp_ptr->threshold_exponent = CTL_LBP_EXPONENT; 10249 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10250 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10251 lbp_ptr->prov_type = SVPD_LBP_THIN; 10252 } 10253 10254 ctsio->scsi_status = SCSI_STATUS_OK; 10255 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10256 ctsio->be_move_done = ctl_config_move_done; 10257 ctl_datamove((union ctl_io *)ctsio); 10258 10259 return (CTL_RETVAL_COMPLETE); 10260} 10261 10262static int 10263ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10264{ 10265 struct scsi_inquiry *cdb; 10266 int alloc_len, retval; 10267 10268 cdb = (struct scsi_inquiry *)ctsio->cdb; 10269 10270 retval = CTL_RETVAL_COMPLETE; 10271 10272 alloc_len = scsi_2btoul(cdb->length); 10273 10274 switch (cdb->page_code) { 10275 case SVPD_SUPPORTED_PAGES: 10276 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10277 break; 10278 case SVPD_UNIT_SERIAL_NUMBER: 10279 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10280 break; 10281 case SVPD_DEVICE_ID: 10282 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10283 break; 10284 case SVPD_EXTENDED_INQUIRY_DATA: 10285 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10286 break; 10287 case SVPD_MODE_PAGE_POLICY: 10288 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10289 break; 10290 case SVPD_SCSI_PORTS: 10291 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10292 break; 10293 case SVPD_SCSI_TPC: 10294 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10295 break; 10296 case SVPD_BLOCK_LIMITS: 10297 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10298 break; 10299 case SVPD_BDC: 10300 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10301 break; 10302 case SVPD_LBP: 10303 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10304 break; 10305 default: 10306 ctl_set_invalid_field(ctsio, 10307 /*sks_valid*/ 1, 10308 /*command*/ 1, 10309 /*field*/ 2, 10310 /*bit_valid*/ 0, 10311 /*bit*/ 0); 10312 ctl_done((union ctl_io *)ctsio); 10313 retval = CTL_RETVAL_COMPLETE; 10314 break; 10315 } 10316 10317 return (retval); 10318} 10319 10320static int 10321ctl_inquiry_std(struct ctl_scsiio *ctsio) 10322{ 10323 struct scsi_inquiry_data *inq_ptr; 10324 struct scsi_inquiry *cdb; 10325 struct ctl_softc *ctl_softc; 10326 struct ctl_lun *lun; 10327 char *val; 10328 uint32_t alloc_len, data_len; 10329 ctl_port_type port_type; 10330 10331 ctl_softc = control_softc; 10332 10333 /* 10334 * Figure out whether we're talking to a Fibre Channel port or not. 10335 * We treat the ioctl front end, and any SCSI adapters, as packetized 10336 * SCSI front ends. 10337 */ 10338 port_type = ctl_softc->ctl_ports[ 10339 ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]->port_type; 10340 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10341 port_type = CTL_PORT_SCSI; 10342 10343 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10344 cdb = (struct scsi_inquiry *)ctsio->cdb; 10345 alloc_len = scsi_2btoul(cdb->length); 10346 10347 /* 10348 * We malloc the full inquiry data size here and fill it 10349 * in. If the user only asks for less, we'll give him 10350 * that much. 10351 */ 10352 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10353 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10354 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10355 ctsio->kern_sg_entries = 0; 10356 ctsio->kern_data_resid = 0; 10357 ctsio->kern_rel_offset = 0; 10358 10359 if (data_len < alloc_len) { 10360 ctsio->residual = alloc_len - data_len; 10361 ctsio->kern_data_len = data_len; 10362 ctsio->kern_total_len = data_len; 10363 } else { 10364 ctsio->residual = 0; 10365 ctsio->kern_data_len = alloc_len; 10366 ctsio->kern_total_len = alloc_len; 10367 } 10368 10369 /* 10370 * If we have a LUN configured, report it as connected. Otherwise, 10371 * report that it is offline or no device is supported, depending 10372 * on the value of inquiry_pq_no_lun. 10373 * 10374 * According to the spec (SPC-4 r34), the peripheral qualifier 10375 * SID_QUAL_LU_OFFLINE (001b) is used in the following scenario: 10376 * 10377 * "A peripheral device having the specified peripheral device type 10378 * is not connected to this logical unit. However, the device 10379 * server is capable of supporting the specified peripheral device 10380 * type on this logical unit." 10381 * 10382 * According to the same spec, the peripheral qualifier 10383 * SID_QUAL_BAD_LU (011b) is used in this scenario: 10384 * 10385 * "The device server is not capable of supporting a peripheral 10386 * device on this logical unit. For this peripheral qualifier the 10387 * peripheral device type shall be set to 1Fh. All other peripheral 10388 * device type values are reserved for this peripheral qualifier." 10389 * 10390 * Given the text, it would seem that we probably want to report that 10391 * the LUN is offline here. There is no LUN connected, but we can 10392 * support a LUN at the given LUN number. 10393 * 10394 * In the real world, though, it sounds like things are a little 10395 * different: 10396 * 10397 * - Linux, when presented with a LUN with the offline peripheral 10398 * qualifier, will create an sg driver instance for it. So when 10399 * you attach it to CTL, you wind up with a ton of sg driver 10400 * instances. (One for every LUN that Linux bothered to probe.) 10401 * Linux does this despite the fact that it issues a REPORT LUNs 10402 * to LUN 0 to get the inventory of supported LUNs. 10403 * 10404 * - There is other anecdotal evidence (from Emulex folks) about 10405 * arrays that use the offline peripheral qualifier for LUNs that 10406 * are on the "passive" path in an active/passive array. 10407 * 10408 * So the solution is provide a hopefully reasonable default 10409 * (return bad/no LUN) and allow the user to change the behavior 10410 * with a tunable/sysctl variable. 10411 */ 10412 if (lun != NULL) 10413 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10414 lun->be_lun->lun_type; 10415 else if (ctl_softc->inquiry_pq_no_lun == 0) 10416 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10417 else 10418 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10419 10420 /* RMB in byte 2 is 0 */ 10421 inq_ptr->version = SCSI_REV_SPC4; 10422 10423 /* 10424 * According to SAM-3, even if a device only supports a single 10425 * level of LUN addressing, it should still set the HISUP bit: 10426 * 10427 * 4.9.1 Logical unit numbers overview 10428 * 10429 * All logical unit number formats described in this standard are 10430 * hierarchical in structure even when only a single level in that 10431 * hierarchy is used. The HISUP bit shall be set to one in the 10432 * standard INQUIRY data (see SPC-2) when any logical unit number 10433 * format described in this standard is used. Non-hierarchical 10434 * formats are outside the scope of this standard. 10435 * 10436 * Therefore we set the HiSup bit here. 10437 * 10438 * The reponse format is 2, per SPC-3. 10439 */ 10440 inq_ptr->response_format = SID_HiSup | 2; 10441 10442 inq_ptr->additional_length = data_len - 10443 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10444 CTL_DEBUG_PRINT(("additional_length = %d\n", 10445 inq_ptr->additional_length)); 10446 10447 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10448 /* 16 bit addressing */ 10449 if (port_type == CTL_PORT_SCSI) 10450 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10451 /* XXX set the SID_MultiP bit here if we're actually going to 10452 respond on multiple ports */ 10453 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10454 10455 /* 16 bit data bus, synchronous transfers */ 10456 if (port_type == CTL_PORT_SCSI) 10457 inq_ptr->flags = SID_WBus16 | SID_Sync; 10458 /* 10459 * XXX KDM do we want to support tagged queueing on the control 10460 * device at all? 10461 */ 10462 if ((lun == NULL) 10463 || (lun->be_lun->lun_type != T_PROCESSOR)) 10464 inq_ptr->flags |= SID_CmdQue; 10465 /* 10466 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10467 * We have 8 bytes for the vendor name, and 16 bytes for the device 10468 * name and 4 bytes for the revision. 10469 */ 10470 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10471 "vendor")) == NULL) { 10472 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10473 } else { 10474 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10475 strncpy(inq_ptr->vendor, val, 10476 min(sizeof(inq_ptr->vendor), strlen(val))); 10477 } 10478 if (lun == NULL) { 10479 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10480 sizeof(inq_ptr->product)); 10481 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10482 switch (lun->be_lun->lun_type) { 10483 case T_DIRECT: 10484 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10485 sizeof(inq_ptr->product)); 10486 break; 10487 case T_PROCESSOR: 10488 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10489 sizeof(inq_ptr->product)); 10490 break; 10491 default: 10492 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10493 sizeof(inq_ptr->product)); 10494 break; 10495 } 10496 } else { 10497 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10498 strncpy(inq_ptr->product, val, 10499 min(sizeof(inq_ptr->product), strlen(val))); 10500 } 10501 10502 /* 10503 * XXX make this a macro somewhere so it automatically gets 10504 * incremented when we make changes. 10505 */ 10506 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10507 "revision")) == NULL) { 10508 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10509 } else { 10510 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10511 strncpy(inq_ptr->revision, val, 10512 min(sizeof(inq_ptr->revision), strlen(val))); 10513 } 10514 10515 /* 10516 * For parallel SCSI, we support double transition and single 10517 * transition clocking. We also support QAS (Quick Arbitration 10518 * and Selection) and Information Unit transfers on both the 10519 * control and array devices. 10520 */ 10521 if (port_type == CTL_PORT_SCSI) 10522 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10523 SID_SPI_IUS; 10524 10525 /* SAM-5 (no version claimed) */ 10526 scsi_ulto2b(0x00A0, inq_ptr->version1); 10527 /* SPC-4 (no version claimed) */ 10528 scsi_ulto2b(0x0460, inq_ptr->version2); 10529 if (port_type == CTL_PORT_FC) { 10530 /* FCP-2 ANSI INCITS.350:2003 */ 10531 scsi_ulto2b(0x0917, inq_ptr->version3); 10532 } else if (port_type == CTL_PORT_SCSI) { 10533 /* SPI-4 ANSI INCITS.362:200x */ 10534 scsi_ulto2b(0x0B56, inq_ptr->version3); 10535 } else if (port_type == CTL_PORT_ISCSI) { 10536 /* iSCSI (no version claimed) */ 10537 scsi_ulto2b(0x0960, inq_ptr->version3); 10538 } else if (port_type == CTL_PORT_SAS) { 10539 /* SAS (no version claimed) */ 10540 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10541 } 10542 10543 if (lun == NULL) { 10544 /* SBC-4 (no version claimed) */ 10545 scsi_ulto2b(0x0600, inq_ptr->version4); 10546 } else { 10547 switch (lun->be_lun->lun_type) { 10548 case T_DIRECT: 10549 /* SBC-4 (no version claimed) */ 10550 scsi_ulto2b(0x0600, inq_ptr->version4); 10551 break; 10552 case T_PROCESSOR: 10553 default: 10554 break; 10555 } 10556 } 10557 10558 ctsio->scsi_status = SCSI_STATUS_OK; 10559 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10560 ctsio->be_move_done = ctl_config_move_done; 10561 ctl_datamove((union ctl_io *)ctsio); 10562 return (CTL_RETVAL_COMPLETE); 10563} 10564 10565int 10566ctl_inquiry(struct ctl_scsiio *ctsio) 10567{ 10568 struct scsi_inquiry *cdb; 10569 int retval; 10570 10571 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10572 10573 cdb = (struct scsi_inquiry *)ctsio->cdb; 10574 if (cdb->byte2 & SI_EVPD) 10575 retval = ctl_inquiry_evpd(ctsio); 10576 else if (cdb->page_code == 0) 10577 retval = ctl_inquiry_std(ctsio); 10578 else { 10579 ctl_set_invalid_field(ctsio, 10580 /*sks_valid*/ 1, 10581 /*command*/ 1, 10582 /*field*/ 2, 10583 /*bit_valid*/ 0, 10584 /*bit*/ 0); 10585 ctl_done((union ctl_io *)ctsio); 10586 return (CTL_RETVAL_COMPLETE); 10587 } 10588 10589 return (retval); 10590} 10591 10592/* 10593 * For known CDB types, parse the LBA and length. 10594 */ 10595static int 10596ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10597{ 10598 if (io->io_hdr.io_type != CTL_IO_SCSI) 10599 return (1); 10600 10601 switch (io->scsiio.cdb[0]) { 10602 case COMPARE_AND_WRITE: { 10603 struct scsi_compare_and_write *cdb; 10604 10605 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10606 10607 *lba = scsi_8btou64(cdb->addr); 10608 *len = cdb->length; 10609 break; 10610 } 10611 case READ_6: 10612 case WRITE_6: { 10613 struct scsi_rw_6 *cdb; 10614 10615 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10616 10617 *lba = scsi_3btoul(cdb->addr); 10618 /* only 5 bits are valid in the most significant address byte */ 10619 *lba &= 0x1fffff; 10620 *len = cdb->length; 10621 break; 10622 } 10623 case READ_10: 10624 case WRITE_10: { 10625 struct scsi_rw_10 *cdb; 10626 10627 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10628 10629 *lba = scsi_4btoul(cdb->addr); 10630 *len = scsi_2btoul(cdb->length); 10631 break; 10632 } 10633 case WRITE_VERIFY_10: { 10634 struct scsi_write_verify_10 *cdb; 10635 10636 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10637 10638 *lba = scsi_4btoul(cdb->addr); 10639 *len = scsi_2btoul(cdb->length); 10640 break; 10641 } 10642 case READ_12: 10643 case WRITE_12: { 10644 struct scsi_rw_12 *cdb; 10645 10646 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10647 10648 *lba = scsi_4btoul(cdb->addr); 10649 *len = scsi_4btoul(cdb->length); 10650 break; 10651 } 10652 case WRITE_VERIFY_12: { 10653 struct scsi_write_verify_12 *cdb; 10654 10655 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10656 10657 *lba = scsi_4btoul(cdb->addr); 10658 *len = scsi_4btoul(cdb->length); 10659 break; 10660 } 10661 case READ_16: 10662 case WRITE_16: 10663 case WRITE_ATOMIC_16: { 10664 struct scsi_rw_16 *cdb; 10665 10666 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10667 10668 *lba = scsi_8btou64(cdb->addr); 10669 *len = scsi_4btoul(cdb->length); 10670 break; 10671 } 10672 case WRITE_VERIFY_16: { 10673 struct scsi_write_verify_16 *cdb; 10674 10675 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10676 10677 *lba = scsi_8btou64(cdb->addr); 10678 *len = scsi_4btoul(cdb->length); 10679 break; 10680 } 10681 case WRITE_SAME_10: { 10682 struct scsi_write_same_10 *cdb; 10683 10684 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10685 10686 *lba = scsi_4btoul(cdb->addr); 10687 *len = scsi_2btoul(cdb->length); 10688 break; 10689 } 10690 case WRITE_SAME_16: { 10691 struct scsi_write_same_16 *cdb; 10692 10693 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10694 10695 *lba = scsi_8btou64(cdb->addr); 10696 *len = scsi_4btoul(cdb->length); 10697 break; 10698 } 10699 case VERIFY_10: { 10700 struct scsi_verify_10 *cdb; 10701 10702 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10703 10704 *lba = scsi_4btoul(cdb->addr); 10705 *len = scsi_2btoul(cdb->length); 10706 break; 10707 } 10708 case VERIFY_12: { 10709 struct scsi_verify_12 *cdb; 10710 10711 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10712 10713 *lba = scsi_4btoul(cdb->addr); 10714 *len = scsi_4btoul(cdb->length); 10715 break; 10716 } 10717 case VERIFY_16: { 10718 struct scsi_verify_16 *cdb; 10719 10720 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10721 10722 *lba = scsi_8btou64(cdb->addr); 10723 *len = scsi_4btoul(cdb->length); 10724 break; 10725 } 10726 case UNMAP: { 10727 *lba = 0; 10728 *len = UINT64_MAX; 10729 break; 10730 } 10731 default: 10732 return (1); 10733 break; /* NOTREACHED */ 10734 } 10735 10736 return (0); 10737} 10738 10739static ctl_action 10740ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2) 10741{ 10742 uint64_t endlba1, endlba2; 10743 10744 endlba1 = lba1 + len1 - 1; 10745 endlba2 = lba2 + len2 - 1; 10746 10747 if ((endlba1 < lba2) 10748 || (endlba2 < lba1)) 10749 return (CTL_ACTION_PASS); 10750 else 10751 return (CTL_ACTION_BLOCK); 10752} 10753 10754static int 10755ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10756{ 10757 struct ctl_ptr_len_flags *ptrlen; 10758 struct scsi_unmap_desc *buf, *end, *range; 10759 uint64_t lba; 10760 uint32_t len; 10761 10762 /* If not UNMAP -- go other way. */ 10763 if (io->io_hdr.io_type != CTL_IO_SCSI || 10764 io->scsiio.cdb[0] != UNMAP) 10765 return (CTL_ACTION_ERROR); 10766 10767 /* If UNMAP without data -- block and wait for data. */ 10768 ptrlen = (struct ctl_ptr_len_flags *) 10769 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10770 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10771 ptrlen->ptr == NULL) 10772 return (CTL_ACTION_BLOCK); 10773 10774 /* UNMAP with data -- check for collision. */ 10775 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10776 end = buf + ptrlen->len / sizeof(*buf); 10777 for (range = buf; range < end; range++) { 10778 lba = scsi_8btou64(range->lba); 10779 len = scsi_4btoul(range->length); 10780 if ((lba < lba2 + len2) && (lba + len > lba2)) 10781 return (CTL_ACTION_BLOCK); 10782 } 10783 return (CTL_ACTION_PASS); 10784} 10785 10786static ctl_action 10787ctl_extent_check(union ctl_io *io1, union ctl_io *io2) 10788{ 10789 uint64_t lba1, lba2; 10790 uint64_t len1, len2; 10791 int retval; 10792 10793 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10794 return (CTL_ACTION_ERROR); 10795 10796 retval = ctl_extent_check_unmap(io2, lba1, len1); 10797 if (retval != CTL_ACTION_ERROR) 10798 return (retval); 10799 10800 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10801 return (CTL_ACTION_ERROR); 10802 10803 return (ctl_extent_check_lba(lba1, len1, lba2, len2)); 10804} 10805 10806static ctl_action 10807ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10808 union ctl_io *ooa_io) 10809{ 10810 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10811 ctl_serialize_action *serialize_row; 10812 10813 /* 10814 * The initiator attempted multiple untagged commands at the same 10815 * time. Can't do that. 10816 */ 10817 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10818 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10819 && ((pending_io->io_hdr.nexus.targ_port == 10820 ooa_io->io_hdr.nexus.targ_port) 10821 && (pending_io->io_hdr.nexus.initid.id == 10822 ooa_io->io_hdr.nexus.initid.id)) 10823 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10824 return (CTL_ACTION_OVERLAP); 10825 10826 /* 10827 * The initiator attempted to send multiple tagged commands with 10828 * the same ID. (It's fine if different initiators have the same 10829 * tag ID.) 10830 * 10831 * Even if all of those conditions are true, we don't kill the I/O 10832 * if the command ahead of us has been aborted. We won't end up 10833 * sending it to the FETD, and it's perfectly legal to resend a 10834 * command with the same tag number as long as the previous 10835 * instance of this tag number has been aborted somehow. 10836 */ 10837 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10838 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10839 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10840 && ((pending_io->io_hdr.nexus.targ_port == 10841 ooa_io->io_hdr.nexus.targ_port) 10842 && (pending_io->io_hdr.nexus.initid.id == 10843 ooa_io->io_hdr.nexus.initid.id)) 10844 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10845 return (CTL_ACTION_OVERLAP_TAG); 10846 10847 /* 10848 * If we get a head of queue tag, SAM-3 says that we should 10849 * immediately execute it. 10850 * 10851 * What happens if this command would normally block for some other 10852 * reason? e.g. a request sense with a head of queue tag 10853 * immediately after a write. Normally that would block, but this 10854 * will result in its getting executed immediately... 10855 * 10856 * We currently return "pass" instead of "skip", so we'll end up 10857 * going through the rest of the queue to check for overlapped tags. 10858 * 10859 * XXX KDM check for other types of blockage first?? 10860 */ 10861 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10862 return (CTL_ACTION_PASS); 10863 10864 /* 10865 * Ordered tags have to block until all items ahead of them 10866 * have completed. If we get called with an ordered tag, we always 10867 * block, if something else is ahead of us in the queue. 10868 */ 10869 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 10870 return (CTL_ACTION_BLOCK); 10871 10872 /* 10873 * Simple tags get blocked until all head of queue and ordered tags 10874 * ahead of them have completed. I'm lumping untagged commands in 10875 * with simple tags here. XXX KDM is that the right thing to do? 10876 */ 10877 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10878 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 10879 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10880 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 10881 return (CTL_ACTION_BLOCK); 10882 10883 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 10884 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 10885 10886 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 10887 10888 switch (serialize_row[pending_entry->seridx]) { 10889 case CTL_SER_BLOCK: 10890 return (CTL_ACTION_BLOCK); 10891 case CTL_SER_EXTENT: 10892 return (ctl_extent_check(pending_io, ooa_io)); 10893 case CTL_SER_EXTENTOPT: 10894 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 10895 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 10896 return (ctl_extent_check(pending_io, ooa_io)); 10897 /* FALLTHROUGH */ 10898 case CTL_SER_PASS: 10899 return (CTL_ACTION_PASS); 10900 case CTL_SER_BLOCKOPT: 10901 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 10902 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 10903 return (CTL_ACTION_BLOCK); 10904 return (CTL_ACTION_PASS); 10905 case CTL_SER_SKIP: 10906 return (CTL_ACTION_SKIP); 10907 default: 10908 panic("invalid serialization value %d", 10909 serialize_row[pending_entry->seridx]); 10910 } 10911 10912 return (CTL_ACTION_ERROR); 10913} 10914 10915/* 10916 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 10917 * Assumptions: 10918 * - pending_io is generally either incoming, or on the blocked queue 10919 * - starting I/O is the I/O we want to start the check with. 10920 */ 10921static ctl_action 10922ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 10923 union ctl_io *starting_io) 10924{ 10925 union ctl_io *ooa_io; 10926 ctl_action action; 10927 10928 mtx_assert(&lun->lun_lock, MA_OWNED); 10929 10930 /* 10931 * Run back along the OOA queue, starting with the current 10932 * blocked I/O and going through every I/O before it on the 10933 * queue. If starting_io is NULL, we'll just end up returning 10934 * CTL_ACTION_PASS. 10935 */ 10936 for (ooa_io = starting_io; ooa_io != NULL; 10937 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 10938 ooa_links)){ 10939 10940 /* 10941 * This routine just checks to see whether 10942 * cur_blocked is blocked by ooa_io, which is ahead 10943 * of it in the queue. It doesn't queue/dequeue 10944 * cur_blocked. 10945 */ 10946 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 10947 switch (action) { 10948 case CTL_ACTION_BLOCK: 10949 case CTL_ACTION_OVERLAP: 10950 case CTL_ACTION_OVERLAP_TAG: 10951 case CTL_ACTION_SKIP: 10952 case CTL_ACTION_ERROR: 10953 return (action); 10954 break; /* NOTREACHED */ 10955 case CTL_ACTION_PASS: 10956 break; 10957 default: 10958 panic("invalid action %d", action); 10959 break; /* NOTREACHED */ 10960 } 10961 } 10962 10963 return (CTL_ACTION_PASS); 10964} 10965 10966/* 10967 * Assumptions: 10968 * - An I/O has just completed, and has been removed from the per-LUN OOA 10969 * queue, so some items on the blocked queue may now be unblocked. 10970 */ 10971static int 10972ctl_check_blocked(struct ctl_lun *lun) 10973{ 10974 union ctl_io *cur_blocked, *next_blocked; 10975 10976 mtx_assert(&lun->lun_lock, MA_OWNED); 10977 10978 /* 10979 * Run forward from the head of the blocked queue, checking each 10980 * entry against the I/Os prior to it on the OOA queue to see if 10981 * there is still any blockage. 10982 * 10983 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 10984 * with our removing a variable on it while it is traversing the 10985 * list. 10986 */ 10987 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 10988 cur_blocked != NULL; cur_blocked = next_blocked) { 10989 union ctl_io *prev_ooa; 10990 ctl_action action; 10991 10992 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 10993 blocked_links); 10994 10995 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 10996 ctl_ooaq, ooa_links); 10997 10998 /* 10999 * If cur_blocked happens to be the first item in the OOA 11000 * queue now, prev_ooa will be NULL, and the action 11001 * returned will just be CTL_ACTION_PASS. 11002 */ 11003 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11004 11005 switch (action) { 11006 case CTL_ACTION_BLOCK: 11007 /* Nothing to do here, still blocked */ 11008 break; 11009 case CTL_ACTION_OVERLAP: 11010 case CTL_ACTION_OVERLAP_TAG: 11011 /* 11012 * This shouldn't happen! In theory we've already 11013 * checked this command for overlap... 11014 */ 11015 break; 11016 case CTL_ACTION_PASS: 11017 case CTL_ACTION_SKIP: { 11018 struct ctl_softc *softc; 11019 const struct ctl_cmd_entry *entry; 11020 uint32_t initidx; 11021 int isc_retval; 11022 11023 /* 11024 * The skip case shouldn't happen, this transaction 11025 * should have never made it onto the blocked queue. 11026 */ 11027 /* 11028 * This I/O is no longer blocked, we can remove it 11029 * from the blocked queue. Since this is a TAILQ 11030 * (doubly linked list), we can do O(1) removals 11031 * from any place on the list. 11032 */ 11033 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11034 blocked_links); 11035 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11036 11037 if (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC){ 11038 /* 11039 * Need to send IO back to original side to 11040 * run 11041 */ 11042 union ctl_ha_msg msg_info; 11043 11044 msg_info.hdr.original_sc = 11045 cur_blocked->io_hdr.original_sc; 11046 msg_info.hdr.serializing_sc = cur_blocked; 11047 msg_info.hdr.msg_type = CTL_MSG_R2R; 11048 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11049 &msg_info, sizeof(msg_info), 0)) > 11050 CTL_HA_STATUS_SUCCESS) { 11051 printf("CTL:Check Blocked error from " 11052 "ctl_ha_msg_send %d\n", 11053 isc_retval); 11054 } 11055 break; 11056 } 11057 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 11058 softc = control_softc; 11059 11060 initidx = ctl_get_initindex(&cur_blocked->io_hdr.nexus); 11061 11062 /* 11063 * Check this I/O for LUN state changes that may 11064 * have happened while this command was blocked. 11065 * The LUN state may have been changed by a command 11066 * ahead of us in the queue, so we need to re-check 11067 * for any states that can be caused by SCSI 11068 * commands. 11069 */ 11070 if (ctl_scsiio_lun_check(softc, lun, entry, 11071 &cur_blocked->scsiio) == 0) { 11072 cur_blocked->io_hdr.flags |= 11073 CTL_FLAG_IS_WAS_ON_RTR; 11074 ctl_enqueue_rtr(cur_blocked); 11075 } else 11076 ctl_done(cur_blocked); 11077 break; 11078 } 11079 default: 11080 /* 11081 * This probably shouldn't happen -- we shouldn't 11082 * get CTL_ACTION_ERROR, or anything else. 11083 */ 11084 break; 11085 } 11086 } 11087 11088 return (CTL_RETVAL_COMPLETE); 11089} 11090 11091/* 11092 * This routine (with one exception) checks LUN flags that can be set by 11093 * commands ahead of us in the OOA queue. These flags have to be checked 11094 * when a command initially comes in, and when we pull a command off the 11095 * blocked queue and are preparing to execute it. The reason we have to 11096 * check these flags for commands on the blocked queue is that the LUN 11097 * state may have been changed by a command ahead of us while we're on the 11098 * blocked queue. 11099 * 11100 * Ordering is somewhat important with these checks, so please pay 11101 * careful attention to the placement of any new checks. 11102 */ 11103static int 11104ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 11105 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11106{ 11107 int retval; 11108 uint32_t residx; 11109 11110 retval = 0; 11111 11112 mtx_assert(&lun->lun_lock, MA_OWNED); 11113 11114 /* 11115 * If this shelf is a secondary shelf controller, we have to reject 11116 * any media access commands. 11117 */ 11118 if ((ctl_softc->flags & CTL_FLAG_ACTIVE_SHELF) == 0 && 11119 (entry->flags & CTL_CMD_FLAG_OK_ON_SECONDARY) == 0) { 11120 ctl_set_lun_standby(ctsio); 11121 retval = 1; 11122 goto bailout; 11123 } 11124 11125 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11126 if (lun->flags & CTL_LUN_READONLY) { 11127 ctl_set_sense(ctsio, /*current_error*/ 1, 11128 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11129 /*asc*/ 0x27, /*ascq*/ 0x01, SSD_ELEM_NONE); 11130 retval = 1; 11131 goto bailout; 11132 } 11133 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT] 11134 .eca_and_aen & SCP_SWP) != 0) { 11135 ctl_set_sense(ctsio, /*current_error*/ 1, 11136 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11137 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11138 retval = 1; 11139 goto bailout; 11140 } 11141 } 11142 11143 /* 11144 * Check for a reservation conflict. If this command isn't allowed 11145 * even on reserved LUNs, and if this initiator isn't the one who 11146 * reserved us, reject the command with a reservation conflict. 11147 */ 11148 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 11149 if ((lun->flags & CTL_LUN_RESERVED) 11150 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11151 if (lun->res_idx != residx) { 11152 ctl_set_reservation_conflict(ctsio); 11153 retval = 1; 11154 goto bailout; 11155 } 11156 } 11157 11158 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0 || 11159 (entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV)) { 11160 /* No reservation or command is allowed. */; 11161 } else if ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_WRESV) && 11162 (lun->res_type == SPR_TYPE_WR_EX || 11163 lun->res_type == SPR_TYPE_WR_EX_RO || 11164 lun->res_type == SPR_TYPE_WR_EX_AR)) { 11165 /* The command is allowed for Write Exclusive resv. */; 11166 } else { 11167 /* 11168 * if we aren't registered or it's a res holder type 11169 * reservation and this isn't the res holder then set a 11170 * conflict. 11171 */ 11172 if (lun->pr_keys[residx] == 0 11173 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 11174 ctl_set_reservation_conflict(ctsio); 11175 retval = 1; 11176 goto bailout; 11177 } 11178 11179 } 11180 11181 if ((lun->flags & CTL_LUN_OFFLINE) 11182 && ((entry->flags & CTL_CMD_FLAG_OK_ON_OFFLINE) == 0)) { 11183 ctl_set_lun_not_ready(ctsio); 11184 retval = 1; 11185 goto bailout; 11186 } 11187 11188 /* 11189 * If the LUN is stopped, see if this particular command is allowed 11190 * for a stopped lun. Otherwise, reject it with 0x04,0x02. 11191 */ 11192 if ((lun->flags & CTL_LUN_STOPPED) 11193 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 11194 /* "Logical unit not ready, initializing cmd. required" */ 11195 ctl_set_lun_stopped(ctsio); 11196 retval = 1; 11197 goto bailout; 11198 } 11199 11200 if ((lun->flags & CTL_LUN_INOPERABLE) 11201 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 11202 /* "Medium format corrupted" */ 11203 ctl_set_medium_format_corrupted(ctsio); 11204 retval = 1; 11205 goto bailout; 11206 } 11207 11208bailout: 11209 return (retval); 11210 11211} 11212 11213static void 11214ctl_failover_io(union ctl_io *io, int have_lock) 11215{ 11216 ctl_set_busy(&io->scsiio); 11217 ctl_done(io); 11218} 11219 11220static void 11221ctl_failover(void) 11222{ 11223 struct ctl_lun *lun; 11224 struct ctl_softc *ctl_softc; 11225 union ctl_io *next_io, *pending_io; 11226 union ctl_io *io; 11227 int lun_idx; 11228 int i; 11229 11230 ctl_softc = control_softc; 11231 11232 mtx_lock(&ctl_softc->ctl_lock); 11233 /* 11234 * Remove any cmds from the other SC from the rtr queue. These 11235 * will obviously only be for LUNs for which we're the primary. 11236 * We can't send status or get/send data for these commands. 11237 * Since they haven't been executed yet, we can just remove them. 11238 * We'll either abort them or delete them below, depending on 11239 * which HA mode we're in. 11240 */ 11241#ifdef notyet 11242 mtx_lock(&ctl_softc->queue_lock); 11243 for (io = (union ctl_io *)STAILQ_FIRST(&ctl_softc->rtr_queue); 11244 io != NULL; io = next_io) { 11245 next_io = (union ctl_io *)STAILQ_NEXT(&io->io_hdr, links); 11246 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11247 STAILQ_REMOVE(&ctl_softc->rtr_queue, &io->io_hdr, 11248 ctl_io_hdr, links); 11249 } 11250 mtx_unlock(&ctl_softc->queue_lock); 11251#endif 11252 11253 for (lun_idx=0; lun_idx < ctl_softc->num_luns; lun_idx++) { 11254 lun = ctl_softc->ctl_luns[lun_idx]; 11255 if (lun==NULL) 11256 continue; 11257 11258 /* 11259 * Processor LUNs are primary on both sides. 11260 * XXX will this always be true? 11261 */ 11262 if (lun->be_lun->lun_type == T_PROCESSOR) 11263 continue; 11264 11265 if ((lun->flags & CTL_LUN_PRIMARY_SC) 11266 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11267 printf("FAILOVER: primary lun %d\n", lun_idx); 11268 /* 11269 * Remove all commands from the other SC. First from the 11270 * blocked queue then from the ooa queue. Once we have 11271 * removed them. Call ctl_check_blocked to see if there 11272 * is anything that can run. 11273 */ 11274 for (io = (union ctl_io *)TAILQ_FIRST( 11275 &lun->blocked_queue); io != NULL; io = next_io) { 11276 11277 next_io = (union ctl_io *)TAILQ_NEXT( 11278 &io->io_hdr, blocked_links); 11279 11280 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11281 TAILQ_REMOVE(&lun->blocked_queue, 11282 &io->io_hdr,blocked_links); 11283 io->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11284 TAILQ_REMOVE(&lun->ooa_queue, 11285 &io->io_hdr, ooa_links); 11286 11287 ctl_free_io(io); 11288 } 11289 } 11290 11291 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11292 io != NULL; io = next_io) { 11293 11294 next_io = (union ctl_io *)TAILQ_NEXT( 11295 &io->io_hdr, ooa_links); 11296 11297 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11298 11299 TAILQ_REMOVE(&lun->ooa_queue, 11300 &io->io_hdr, 11301 ooa_links); 11302 11303 ctl_free_io(io); 11304 } 11305 } 11306 ctl_check_blocked(lun); 11307 } else if ((lun->flags & CTL_LUN_PRIMARY_SC) 11308 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11309 11310 printf("FAILOVER: primary lun %d\n", lun_idx); 11311 /* 11312 * Abort all commands from the other SC. We can't 11313 * send status back for them now. These should get 11314 * cleaned up when they are completed or come out 11315 * for a datamove operation. 11316 */ 11317 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11318 io != NULL; io = next_io) { 11319 next_io = (union ctl_io *)TAILQ_NEXT( 11320 &io->io_hdr, ooa_links); 11321 11322 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11323 io->io_hdr.flags |= CTL_FLAG_ABORT; 11324 } 11325 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11326 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11327 11328 printf("FAILOVER: secondary lun %d\n", lun_idx); 11329 11330 lun->flags |= CTL_LUN_PRIMARY_SC; 11331 11332 /* 11333 * We send all I/O that was sent to this controller 11334 * and redirected to the other side back with 11335 * busy status, and have the initiator retry it. 11336 * Figuring out how much data has been transferred, 11337 * etc. and picking up where we left off would be 11338 * very tricky. 11339 * 11340 * XXX KDM need to remove I/O from the blocked 11341 * queue as well! 11342 */ 11343 for (pending_io = (union ctl_io *)TAILQ_FIRST( 11344 &lun->ooa_queue); pending_io != NULL; 11345 pending_io = next_io) { 11346 11347 next_io = (union ctl_io *)TAILQ_NEXT( 11348 &pending_io->io_hdr, ooa_links); 11349 11350 pending_io->io_hdr.flags &= 11351 ~CTL_FLAG_SENT_2OTHER_SC; 11352 11353 if (pending_io->io_hdr.flags & 11354 CTL_FLAG_IO_ACTIVE) { 11355 pending_io->io_hdr.flags |= 11356 CTL_FLAG_FAILOVER; 11357 } else { 11358 ctl_set_busy(&pending_io->scsiio); 11359 ctl_done(pending_io); 11360 } 11361 } 11362 11363 /* 11364 * Build Unit Attention 11365 */ 11366 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11367 lun->pending_ua[i] |= 11368 CTL_UA_ASYM_ACC_CHANGE; 11369 } 11370 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11371 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11372 printf("FAILOVER: secondary lun %d\n", lun_idx); 11373 /* 11374 * if the first io on the OOA is not on the RtR queue 11375 * add it. 11376 */ 11377 lun->flags |= CTL_LUN_PRIMARY_SC; 11378 11379 pending_io = (union ctl_io *)TAILQ_FIRST( 11380 &lun->ooa_queue); 11381 if (pending_io==NULL) { 11382 printf("Nothing on OOA queue\n"); 11383 continue; 11384 } 11385 11386 pending_io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11387 if ((pending_io->io_hdr.flags & 11388 CTL_FLAG_IS_WAS_ON_RTR) == 0) { 11389 pending_io->io_hdr.flags |= 11390 CTL_FLAG_IS_WAS_ON_RTR; 11391 ctl_enqueue_rtr(pending_io); 11392 } 11393#if 0 11394 else 11395 { 11396 printf("Tag 0x%04x is running\n", 11397 pending_io->scsiio.tag_num); 11398 } 11399#endif 11400 11401 next_io = (union ctl_io *)TAILQ_NEXT( 11402 &pending_io->io_hdr, ooa_links); 11403 for (pending_io=next_io; pending_io != NULL; 11404 pending_io = next_io) { 11405 pending_io->io_hdr.flags &= 11406 ~CTL_FLAG_SENT_2OTHER_SC; 11407 next_io = (union ctl_io *)TAILQ_NEXT( 11408 &pending_io->io_hdr, ooa_links); 11409 if (pending_io->io_hdr.flags & 11410 CTL_FLAG_IS_WAS_ON_RTR) { 11411#if 0 11412 printf("Tag 0x%04x is running\n", 11413 pending_io->scsiio.tag_num); 11414#endif 11415 continue; 11416 } 11417 11418 switch (ctl_check_ooa(lun, pending_io, 11419 (union ctl_io *)TAILQ_PREV( 11420 &pending_io->io_hdr, ctl_ooaq, 11421 ooa_links))) { 11422 11423 case CTL_ACTION_BLOCK: 11424 TAILQ_INSERT_TAIL(&lun->blocked_queue, 11425 &pending_io->io_hdr, 11426 blocked_links); 11427 pending_io->io_hdr.flags |= 11428 CTL_FLAG_BLOCKED; 11429 break; 11430 case CTL_ACTION_PASS: 11431 case CTL_ACTION_SKIP: 11432 pending_io->io_hdr.flags |= 11433 CTL_FLAG_IS_WAS_ON_RTR; 11434 ctl_enqueue_rtr(pending_io); 11435 break; 11436 case CTL_ACTION_OVERLAP: 11437 ctl_set_overlapped_cmd( 11438 (struct ctl_scsiio *)pending_io); 11439 ctl_done(pending_io); 11440 break; 11441 case CTL_ACTION_OVERLAP_TAG: 11442 ctl_set_overlapped_tag( 11443 (struct ctl_scsiio *)pending_io, 11444 pending_io->scsiio.tag_num & 0xff); 11445 ctl_done(pending_io); 11446 break; 11447 case CTL_ACTION_ERROR: 11448 default: 11449 ctl_set_internal_failure( 11450 (struct ctl_scsiio *)pending_io, 11451 0, // sks_valid 11452 0); //retry count 11453 ctl_done(pending_io); 11454 break; 11455 } 11456 } 11457 11458 /* 11459 * Build Unit Attention 11460 */ 11461 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11462 lun->pending_ua[i] |= 11463 CTL_UA_ASYM_ACC_CHANGE; 11464 } 11465 } else { 11466 panic("Unhandled HA mode failover, LUN flags = %#x, " 11467 "ha_mode = #%x", lun->flags, ctl_softc->ha_mode); 11468 } 11469 } 11470 ctl_pause_rtr = 0; 11471 mtx_unlock(&ctl_softc->ctl_lock); 11472} 11473 11474static int 11475ctl_scsiio_precheck(struct ctl_softc *ctl_softc, struct ctl_scsiio *ctsio) 11476{ 11477 struct ctl_lun *lun; 11478 const struct ctl_cmd_entry *entry; 11479 uint32_t initidx, targ_lun; 11480 int retval; 11481 11482 retval = 0; 11483 11484 lun = NULL; 11485 11486 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11487 if ((targ_lun < CTL_MAX_LUNS) 11488 && ((lun = ctl_softc->ctl_luns[targ_lun]) != NULL)) { 11489 /* 11490 * If the LUN is invalid, pretend that it doesn't exist. 11491 * It will go away as soon as all pending I/O has been 11492 * completed. 11493 */ 11494 mtx_lock(&lun->lun_lock); 11495 if (lun->flags & CTL_LUN_DISABLED) { 11496 mtx_unlock(&lun->lun_lock); 11497 lun = NULL; 11498 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11499 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11500 } else { 11501 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11502 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11503 lun->be_lun; 11504 if (lun->be_lun->lun_type == T_PROCESSOR) { 11505 ctsio->io_hdr.flags |= CTL_FLAG_CONTROL_DEV; 11506 } 11507 11508 /* 11509 * Every I/O goes into the OOA queue for a 11510 * particular LUN, and stays there until completion. 11511 */ 11512 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11513 ooa_links); 11514 } 11515 } else { 11516 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11517 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11518 } 11519 11520 /* Get command entry and return error if it is unsuppotyed. */ 11521 entry = ctl_validate_command(ctsio); 11522 if (entry == NULL) { 11523 if (lun) 11524 mtx_unlock(&lun->lun_lock); 11525 return (retval); 11526 } 11527 11528 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11529 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11530 11531 /* 11532 * Check to see whether we can send this command to LUNs that don't 11533 * exist. This should pretty much only be the case for inquiry 11534 * and request sense. Further checks, below, really require having 11535 * a LUN, so we can't really check the command anymore. Just put 11536 * it on the rtr queue. 11537 */ 11538 if (lun == NULL) { 11539 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) { 11540 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11541 ctl_enqueue_rtr((union ctl_io *)ctsio); 11542 return (retval); 11543 } 11544 11545 ctl_set_unsupported_lun(ctsio); 11546 ctl_done((union ctl_io *)ctsio); 11547 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11548 return (retval); 11549 } else { 11550 /* 11551 * Make sure we support this particular command on this LUN. 11552 * e.g., we don't support writes to the control LUN. 11553 */ 11554 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11555 mtx_unlock(&lun->lun_lock); 11556 ctl_set_invalid_opcode(ctsio); 11557 ctl_done((union ctl_io *)ctsio); 11558 return (retval); 11559 } 11560 } 11561 11562 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11563 11564#ifdef CTL_WITH_CA 11565 /* 11566 * If we've got a request sense, it'll clear the contingent 11567 * allegiance condition. Otherwise, if we have a CA condition for 11568 * this initiator, clear it, because it sent down a command other 11569 * than request sense. 11570 */ 11571 if ((ctsio->cdb[0] != REQUEST_SENSE) 11572 && (ctl_is_set(lun->have_ca, initidx))) 11573 ctl_clear_mask(lun->have_ca, initidx); 11574#endif 11575 11576 /* 11577 * If the command has this flag set, it handles its own unit 11578 * attention reporting, we shouldn't do anything. Otherwise we 11579 * check for any pending unit attentions, and send them back to the 11580 * initiator. We only do this when a command initially comes in, 11581 * not when we pull it off the blocked queue. 11582 * 11583 * According to SAM-3, section 5.3.2, the order that things get 11584 * presented back to the host is basically unit attentions caused 11585 * by some sort of reset event, busy status, reservation conflicts 11586 * or task set full, and finally any other status. 11587 * 11588 * One issue here is that some of the unit attentions we report 11589 * don't fall into the "reset" category (e.g. "reported luns data 11590 * has changed"). So reporting it here, before the reservation 11591 * check, may be technically wrong. I guess the only thing to do 11592 * would be to check for and report the reset events here, and then 11593 * check for the other unit attention types after we check for a 11594 * reservation conflict. 11595 * 11596 * XXX KDM need to fix this 11597 */ 11598 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11599 ctl_ua_type ua_type; 11600 11601 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 11602 scsi_sense_data_type sense_format; 11603 11604 if (lun != NULL) 11605 sense_format = (lun->flags & 11606 CTL_LUN_SENSE_DESC) ? SSD_TYPE_DESC : 11607 SSD_TYPE_FIXED; 11608 else 11609 sense_format = SSD_TYPE_FIXED; 11610 11611 ua_type = ctl_build_ua(&lun->pending_ua[initidx], 11612 &ctsio->sense_data, sense_format); 11613 if (ua_type != CTL_UA_NONE) { 11614 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11615 ctsio->io_hdr.status = CTL_SCSI_ERROR | 11616 CTL_AUTOSENSE; 11617 ctsio->sense_len = SSD_FULL_SIZE; 11618 mtx_unlock(&lun->lun_lock); 11619 ctl_done((union ctl_io *)ctsio); 11620 return (retval); 11621 } 11622 } 11623 } 11624 11625 11626 if (ctl_scsiio_lun_check(ctl_softc, lun, entry, ctsio) != 0) { 11627 mtx_unlock(&lun->lun_lock); 11628 ctl_done((union ctl_io *)ctsio); 11629 return (retval); 11630 } 11631 11632 /* 11633 * XXX CHD this is where we want to send IO to other side if 11634 * this LUN is secondary on this SC. We will need to make a copy 11635 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11636 * the copy we send as FROM_OTHER. 11637 * We also need to stuff the address of the original IO so we can 11638 * find it easily. Something similar will need be done on the other 11639 * side so when we are done we can find the copy. 11640 */ 11641 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11642 union ctl_ha_msg msg_info; 11643 int isc_retval; 11644 11645 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11646 11647 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11648 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11649#if 0 11650 printf("1. ctsio %p\n", ctsio); 11651#endif 11652 msg_info.hdr.serializing_sc = NULL; 11653 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11654 msg_info.scsi.tag_num = ctsio->tag_num; 11655 msg_info.scsi.tag_type = ctsio->tag_type; 11656 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11657 11658 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11659 11660 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11661 (void *)&msg_info, sizeof(msg_info), 0)) > 11662 CTL_HA_STATUS_SUCCESS) { 11663 printf("CTL:precheck, ctl_ha_msg_send returned %d\n", 11664 isc_retval); 11665 printf("CTL:opcode is %x\n", ctsio->cdb[0]); 11666 } else { 11667#if 0 11668 printf("CTL:Precheck sent msg, opcode is %x\n",opcode); 11669#endif 11670 } 11671 11672 /* 11673 * XXX KDM this I/O is off the incoming queue, but hasn't 11674 * been inserted on any other queue. We may need to come 11675 * up with a holding queue while we wait for serialization 11676 * so that we have an idea of what we're waiting for from 11677 * the other side. 11678 */ 11679 mtx_unlock(&lun->lun_lock); 11680 return (retval); 11681 } 11682 11683 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11684 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11685 ctl_ooaq, ooa_links))) { 11686 case CTL_ACTION_BLOCK: 11687 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11688 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11689 blocked_links); 11690 mtx_unlock(&lun->lun_lock); 11691 return (retval); 11692 case CTL_ACTION_PASS: 11693 case CTL_ACTION_SKIP: 11694 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11695 mtx_unlock(&lun->lun_lock); 11696 ctl_enqueue_rtr((union ctl_io *)ctsio); 11697 break; 11698 case CTL_ACTION_OVERLAP: 11699 mtx_unlock(&lun->lun_lock); 11700 ctl_set_overlapped_cmd(ctsio); 11701 ctl_done((union ctl_io *)ctsio); 11702 break; 11703 case CTL_ACTION_OVERLAP_TAG: 11704 mtx_unlock(&lun->lun_lock); 11705 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11706 ctl_done((union ctl_io *)ctsio); 11707 break; 11708 case CTL_ACTION_ERROR: 11709 default: 11710 mtx_unlock(&lun->lun_lock); 11711 ctl_set_internal_failure(ctsio, 11712 /*sks_valid*/ 0, 11713 /*retry_count*/ 0); 11714 ctl_done((union ctl_io *)ctsio); 11715 break; 11716 } 11717 return (retval); 11718} 11719 11720const struct ctl_cmd_entry * 11721ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11722{ 11723 const struct ctl_cmd_entry *entry; 11724 int service_action; 11725 11726 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11727 if (sa) 11728 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11729 if (entry->flags & CTL_CMD_FLAG_SA5) { 11730 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11731 entry = &((const struct ctl_cmd_entry *) 11732 entry->execute)[service_action]; 11733 } 11734 return (entry); 11735} 11736 11737const struct ctl_cmd_entry * 11738ctl_validate_command(struct ctl_scsiio *ctsio) 11739{ 11740 const struct ctl_cmd_entry *entry; 11741 int i, sa; 11742 uint8_t diff; 11743 11744 entry = ctl_get_cmd_entry(ctsio, &sa); 11745 if (entry->execute == NULL) { 11746 if (sa) 11747 ctl_set_invalid_field(ctsio, 11748 /*sks_valid*/ 1, 11749 /*command*/ 1, 11750 /*field*/ 1, 11751 /*bit_valid*/ 1, 11752 /*bit*/ 4); 11753 else 11754 ctl_set_invalid_opcode(ctsio); 11755 ctl_done((union ctl_io *)ctsio); 11756 return (NULL); 11757 } 11758 KASSERT(entry->length > 0, 11759 ("Not defined length for command 0x%02x/0x%02x", 11760 ctsio->cdb[0], ctsio->cdb[1])); 11761 for (i = 1; i < entry->length; i++) { 11762 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11763 if (diff == 0) 11764 continue; 11765 ctl_set_invalid_field(ctsio, 11766 /*sks_valid*/ 1, 11767 /*command*/ 1, 11768 /*field*/ i, 11769 /*bit_valid*/ 1, 11770 /*bit*/ fls(diff) - 1); 11771 ctl_done((union ctl_io *)ctsio); 11772 return (NULL); 11773 } 11774 return (entry); 11775} 11776 11777static int 11778ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11779{ 11780 11781 switch (lun_type) { 11782 case T_PROCESSOR: 11783 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) && 11784 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11785 return (0); 11786 break; 11787 case T_DIRECT: 11788 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) && 11789 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11790 return (0); 11791 break; 11792 default: 11793 return (0); 11794 } 11795 return (1); 11796} 11797 11798static int 11799ctl_scsiio(struct ctl_scsiio *ctsio) 11800{ 11801 int retval; 11802 const struct ctl_cmd_entry *entry; 11803 11804 retval = CTL_RETVAL_COMPLETE; 11805 11806 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11807 11808 entry = ctl_get_cmd_entry(ctsio, NULL); 11809 11810 /* 11811 * If this I/O has been aborted, just send it straight to 11812 * ctl_done() without executing it. 11813 */ 11814 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11815 ctl_done((union ctl_io *)ctsio); 11816 goto bailout; 11817 } 11818 11819 /* 11820 * All the checks should have been handled by ctl_scsiio_precheck(). 11821 * We should be clear now to just execute the I/O. 11822 */ 11823 retval = entry->execute(ctsio); 11824 11825bailout: 11826 return (retval); 11827} 11828 11829/* 11830 * Since we only implement one target right now, a bus reset simply resets 11831 * our single target. 11832 */ 11833static int 11834ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io) 11835{ 11836 return(ctl_target_reset(ctl_softc, io, CTL_UA_BUS_RESET)); 11837} 11838 11839static int 11840ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 11841 ctl_ua_type ua_type) 11842{ 11843 struct ctl_lun *lun; 11844 int retval; 11845 11846 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11847 union ctl_ha_msg msg_info; 11848 11849 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11850 msg_info.hdr.nexus = io->io_hdr.nexus; 11851 if (ua_type==CTL_UA_TARG_RESET) 11852 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11853 else 11854 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11855 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11856 msg_info.hdr.original_sc = NULL; 11857 msg_info.hdr.serializing_sc = NULL; 11858 if (CTL_HA_STATUS_SUCCESS != ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11859 (void *)&msg_info, sizeof(msg_info), 0)) { 11860 } 11861 } 11862 retval = 0; 11863 11864 mtx_lock(&ctl_softc->ctl_lock); 11865 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) 11866 retval += ctl_lun_reset(lun, io, ua_type); 11867 mtx_unlock(&ctl_softc->ctl_lock); 11868 11869 return (retval); 11870} 11871 11872/* 11873 * The LUN should always be set. The I/O is optional, and is used to 11874 * distinguish between I/Os sent by this initiator, and by other 11875 * initiators. We set unit attention for initiators other than this one. 11876 * SAM-3 is vague on this point. It does say that a unit attention should 11877 * be established for other initiators when a LUN is reset (see section 11878 * 5.7.3), but it doesn't specifically say that the unit attention should 11879 * be established for this particular initiator when a LUN is reset. Here 11880 * is the relevant text, from SAM-3 rev 8: 11881 * 11882 * 5.7.2 When a SCSI initiator port aborts its own tasks 11883 * 11884 * When a SCSI initiator port causes its own task(s) to be aborted, no 11885 * notification that the task(s) have been aborted shall be returned to 11886 * the SCSI initiator port other than the completion response for the 11887 * command or task management function action that caused the task(s) to 11888 * be aborted and notification(s) associated with related effects of the 11889 * action (e.g., a reset unit attention condition). 11890 * 11891 * XXX KDM for now, we're setting unit attention for all initiators. 11892 */ 11893static int 11894ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11895{ 11896 union ctl_io *xio; 11897#if 0 11898 uint32_t initindex; 11899#endif 11900 int i; 11901 11902 mtx_lock(&lun->lun_lock); 11903 /* 11904 * Run through the OOA queue and abort each I/O. 11905 */ 11906#if 0 11907 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 11908#endif 11909 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11910 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11911 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11912 } 11913 11914 /* 11915 * This version sets unit attention for every 11916 */ 11917#if 0 11918 initindex = ctl_get_initindex(&io->io_hdr.nexus); 11919 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11920 if (initindex == i) 11921 continue; 11922 lun->pending_ua[i] |= ua_type; 11923 } 11924#endif 11925 11926 /* 11927 * A reset (any kind, really) clears reservations established with 11928 * RESERVE/RELEASE. It does not clear reservations established 11929 * with PERSISTENT RESERVE OUT, but we don't support that at the 11930 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11931 * reservations made with the RESERVE/RELEASE commands, because 11932 * those commands are obsolete in SPC-3. 11933 */ 11934 lun->flags &= ~CTL_LUN_RESERVED; 11935 11936 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11937#ifdef CTL_WITH_CA 11938 ctl_clear_mask(lun->have_ca, i); 11939#endif 11940 lun->pending_ua[i] |= ua_type; 11941 } 11942 mtx_unlock(&lun->lun_lock); 11943 11944 return (0); 11945} 11946 11947static void 11948ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11949 int other_sc) 11950{ 11951 union ctl_io *xio; 11952 11953 mtx_assert(&lun->lun_lock, MA_OWNED); 11954 11955 /* 11956 * Run through the OOA queue and attempt to find the given I/O. 11957 * The target port, initiator ID, tag type and tag number have to 11958 * match the values that we got from the initiator. If we have an 11959 * untagged command to abort, simply abort the first untagged command 11960 * we come to. We only allow one untagged command at a time of course. 11961 */ 11962 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11963 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11964 11965 if ((targ_port == UINT32_MAX || 11966 targ_port == xio->io_hdr.nexus.targ_port) && 11967 (init_id == UINT32_MAX || 11968 init_id == xio->io_hdr.nexus.initid.id)) { 11969 if (targ_port != xio->io_hdr.nexus.targ_port || 11970 init_id != xio->io_hdr.nexus.initid.id) 11971 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 11972 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11973 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11974 union ctl_ha_msg msg_info; 11975 11976 msg_info.hdr.nexus = xio->io_hdr.nexus; 11977 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 11978 msg_info.task.tag_num = xio->scsiio.tag_num; 11979 msg_info.task.tag_type = xio->scsiio.tag_type; 11980 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11981 msg_info.hdr.original_sc = NULL; 11982 msg_info.hdr.serializing_sc = NULL; 11983 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11984 (void *)&msg_info, sizeof(msg_info), 0); 11985 } 11986 } 11987 } 11988} 11989 11990static int 11991ctl_abort_task_set(union ctl_io *io) 11992{ 11993 struct ctl_softc *softc = control_softc; 11994 struct ctl_lun *lun; 11995 uint32_t targ_lun; 11996 11997 /* 11998 * Look up the LUN. 11999 */ 12000 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12001 mtx_lock(&softc->ctl_lock); 12002 if ((targ_lun < CTL_MAX_LUNS) && (softc->ctl_luns[targ_lun] != NULL)) 12003 lun = softc->ctl_luns[targ_lun]; 12004 else { 12005 mtx_unlock(&softc->ctl_lock); 12006 return (1); 12007 } 12008 12009 mtx_lock(&lun->lun_lock); 12010 mtx_unlock(&softc->ctl_lock); 12011 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 12012 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12013 io->io_hdr.nexus.initid.id, 12014 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12015 } else { /* CTL_TASK_CLEAR_TASK_SET */ 12016 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 12017 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12018 } 12019 mtx_unlock(&lun->lun_lock); 12020 return (0); 12021} 12022 12023static int 12024ctl_i_t_nexus_reset(union ctl_io *io) 12025{ 12026 struct ctl_softc *softc = control_softc; 12027 struct ctl_lun *lun; 12028 uint32_t initindex, residx; 12029 12030 initindex = ctl_get_initindex(&io->io_hdr.nexus); 12031 residx = ctl_get_resindex(&io->io_hdr.nexus); 12032 mtx_lock(&softc->ctl_lock); 12033 STAILQ_FOREACH(lun, &softc->lun_list, links) { 12034 mtx_lock(&lun->lun_lock); 12035 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12036 io->io_hdr.nexus.initid.id, 12037 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12038#ifdef CTL_WITH_CA 12039 ctl_clear_mask(lun->have_ca, initindex); 12040#endif 12041 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 12042 lun->flags &= ~CTL_LUN_RESERVED; 12043 lun->pending_ua[initindex] |= CTL_UA_I_T_NEXUS_LOSS; 12044 mtx_unlock(&lun->lun_lock); 12045 } 12046 mtx_unlock(&softc->ctl_lock); 12047 return (0); 12048} 12049 12050static int 12051ctl_abort_task(union ctl_io *io) 12052{ 12053 union ctl_io *xio; 12054 struct ctl_lun *lun; 12055 struct ctl_softc *ctl_softc; 12056#if 0 12057 struct sbuf sb; 12058 char printbuf[128]; 12059#endif 12060 int found; 12061 uint32_t targ_lun; 12062 12063 ctl_softc = control_softc; 12064 found = 0; 12065 12066 /* 12067 * Look up the LUN. 12068 */ 12069 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12070 mtx_lock(&ctl_softc->ctl_lock); 12071 if ((targ_lun < CTL_MAX_LUNS) 12072 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12073 lun = ctl_softc->ctl_luns[targ_lun]; 12074 else { 12075 mtx_unlock(&ctl_softc->ctl_lock); 12076 return (1); 12077 } 12078 12079#if 0 12080 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12081 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12082#endif 12083 12084 mtx_lock(&lun->lun_lock); 12085 mtx_unlock(&ctl_softc->ctl_lock); 12086 /* 12087 * Run through the OOA queue and attempt to find the given I/O. 12088 * The target port, initiator ID, tag type and tag number have to 12089 * match the values that we got from the initiator. If we have an 12090 * untagged command to abort, simply abort the first untagged command 12091 * we come to. We only allow one untagged command at a time of course. 12092 */ 12093#if 0 12094 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12095#endif 12096 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12097 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12098#if 0 12099 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12100 12101 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12102 lun->lun, xio->scsiio.tag_num, 12103 xio->scsiio.tag_type, 12104 (xio->io_hdr.blocked_links.tqe_prev 12105 == NULL) ? "" : " BLOCKED", 12106 (xio->io_hdr.flags & 12107 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12108 (xio->io_hdr.flags & 12109 CTL_FLAG_ABORT) ? " ABORT" : "", 12110 (xio->io_hdr.flags & 12111 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12112 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12113 sbuf_finish(&sb); 12114 printf("%s\n", sbuf_data(&sb)); 12115#endif 12116 12117 if ((xio->io_hdr.nexus.targ_port == io->io_hdr.nexus.targ_port) 12118 && (xio->io_hdr.nexus.initid.id == 12119 io->io_hdr.nexus.initid.id)) { 12120 /* 12121 * If the abort says that the task is untagged, the 12122 * task in the queue must be untagged. Otherwise, 12123 * we just check to see whether the tag numbers 12124 * match. This is because the QLogic firmware 12125 * doesn't pass back the tag type in an abort 12126 * request. 12127 */ 12128#if 0 12129 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12130 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12131 || (xio->scsiio.tag_num == io->taskio.tag_num)) { 12132#endif 12133 /* 12134 * XXX KDM we've got problems with FC, because it 12135 * doesn't send down a tag type with aborts. So we 12136 * can only really go by the tag number... 12137 * This may cause problems with parallel SCSI. 12138 * Need to figure that out!! 12139 */ 12140 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12141 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12142 found = 1; 12143 if ((io->io_hdr.flags & 12144 CTL_FLAG_FROM_OTHER_SC) == 0 && 12145 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12146 union ctl_ha_msg msg_info; 12147 12148 io->io_hdr.flags |= 12149 CTL_FLAG_SENT_2OTHER_SC; 12150 msg_info.hdr.nexus = io->io_hdr.nexus; 12151 msg_info.task.task_action = 12152 CTL_TASK_ABORT_TASK; 12153 msg_info.task.tag_num = 12154 io->taskio.tag_num; 12155 msg_info.task.tag_type = 12156 io->taskio.tag_type; 12157 msg_info.hdr.msg_type = 12158 CTL_MSG_MANAGE_TASKS; 12159 msg_info.hdr.original_sc = NULL; 12160 msg_info.hdr.serializing_sc = NULL; 12161#if 0 12162 printf("Sent Abort to other side\n"); 12163#endif 12164 if (CTL_HA_STATUS_SUCCESS != 12165 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12166 (void *)&msg_info, 12167 sizeof(msg_info), 0)) { 12168 } 12169 } 12170#if 0 12171 printf("ctl_abort_task: found I/O to abort\n"); 12172#endif 12173 break; 12174 } 12175 } 12176 } 12177 mtx_unlock(&lun->lun_lock); 12178 12179 if (found == 0) { 12180 /* 12181 * This isn't really an error. It's entirely possible for 12182 * the abort and command completion to cross on the wire. 12183 * This is more of an informative/diagnostic error. 12184 */ 12185#if 0 12186 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12187 "%d:%d:%d:%d tag %d type %d\n", 12188 io->io_hdr.nexus.initid.id, 12189 io->io_hdr.nexus.targ_port, 12190 io->io_hdr.nexus.targ_target.id, 12191 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12192 io->taskio.tag_type); 12193#endif 12194 } 12195 return (0); 12196} 12197 12198static void 12199ctl_run_task(union ctl_io *io) 12200{ 12201 struct ctl_softc *ctl_softc = control_softc; 12202 int retval = 1; 12203 const char *task_desc; 12204 12205 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12206 12207 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12208 ("ctl_run_task: Unextected io_type %d\n", 12209 io->io_hdr.io_type)); 12210 12211 task_desc = ctl_scsi_task_string(&io->taskio); 12212 if (task_desc != NULL) { 12213#ifdef NEEDTOPORT 12214 csevent_log(CSC_CTL | CSC_SHELF_SW | 12215 CTL_TASK_REPORT, 12216 csevent_LogType_Trace, 12217 csevent_Severity_Information, 12218 csevent_AlertLevel_Green, 12219 csevent_FRU_Firmware, 12220 csevent_FRU_Unknown, 12221 "CTL: received task: %s",task_desc); 12222#endif 12223 } else { 12224#ifdef NEEDTOPORT 12225 csevent_log(CSC_CTL | CSC_SHELF_SW | 12226 CTL_TASK_REPORT, 12227 csevent_LogType_Trace, 12228 csevent_Severity_Information, 12229 csevent_AlertLevel_Green, 12230 csevent_FRU_Firmware, 12231 csevent_FRU_Unknown, 12232 "CTL: received unknown task " 12233 "type: %d (%#x)", 12234 io->taskio.task_action, 12235 io->taskio.task_action); 12236#endif 12237 } 12238 switch (io->taskio.task_action) { 12239 case CTL_TASK_ABORT_TASK: 12240 retval = ctl_abort_task(io); 12241 break; 12242 case CTL_TASK_ABORT_TASK_SET: 12243 case CTL_TASK_CLEAR_TASK_SET: 12244 retval = ctl_abort_task_set(io); 12245 break; 12246 case CTL_TASK_CLEAR_ACA: 12247 break; 12248 case CTL_TASK_I_T_NEXUS_RESET: 12249 retval = ctl_i_t_nexus_reset(io); 12250 break; 12251 case CTL_TASK_LUN_RESET: { 12252 struct ctl_lun *lun; 12253 uint32_t targ_lun; 12254 12255 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12256 mtx_lock(&ctl_softc->ctl_lock); 12257 if ((targ_lun < CTL_MAX_LUNS) 12258 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12259 lun = ctl_softc->ctl_luns[targ_lun]; 12260 else { 12261 mtx_unlock(&ctl_softc->ctl_lock); 12262 retval = 1; 12263 break; 12264 } 12265 12266 if (!(io->io_hdr.flags & 12267 CTL_FLAG_FROM_OTHER_SC)) { 12268 union ctl_ha_msg msg_info; 12269 12270 io->io_hdr.flags |= 12271 CTL_FLAG_SENT_2OTHER_SC; 12272 msg_info.hdr.msg_type = 12273 CTL_MSG_MANAGE_TASKS; 12274 msg_info.hdr.nexus = io->io_hdr.nexus; 12275 msg_info.task.task_action = 12276 CTL_TASK_LUN_RESET; 12277 msg_info.hdr.original_sc = NULL; 12278 msg_info.hdr.serializing_sc = NULL; 12279 if (CTL_HA_STATUS_SUCCESS != 12280 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12281 (void *)&msg_info, 12282 sizeof(msg_info), 0)) { 12283 } 12284 } 12285 12286 retval = ctl_lun_reset(lun, io, 12287 CTL_UA_LUN_RESET); 12288 mtx_unlock(&ctl_softc->ctl_lock); 12289 break; 12290 } 12291 case CTL_TASK_TARGET_RESET: 12292 retval = ctl_target_reset(ctl_softc, io, CTL_UA_TARG_RESET); 12293 break; 12294 case CTL_TASK_BUS_RESET: 12295 retval = ctl_bus_reset(ctl_softc, io); 12296 break; 12297 case CTL_TASK_PORT_LOGIN: 12298 break; 12299 case CTL_TASK_PORT_LOGOUT: 12300 break; 12301 default: 12302 printf("ctl_run_task: got unknown task management event %d\n", 12303 io->taskio.task_action); 12304 break; 12305 } 12306 if (retval == 0) 12307 io->io_hdr.status = CTL_SUCCESS; 12308 else 12309 io->io_hdr.status = CTL_ERROR; 12310 ctl_done(io); 12311} 12312 12313/* 12314 * For HA operation. Handle commands that come in from the other 12315 * controller. 12316 */ 12317static void 12318ctl_handle_isc(union ctl_io *io) 12319{ 12320 int free_io; 12321 struct ctl_lun *lun; 12322 struct ctl_softc *ctl_softc; 12323 uint32_t targ_lun; 12324 12325 ctl_softc = control_softc; 12326 12327 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12328 lun = ctl_softc->ctl_luns[targ_lun]; 12329 12330 switch (io->io_hdr.msg_type) { 12331 case CTL_MSG_SERIALIZE: 12332 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12333 break; 12334 case CTL_MSG_R2R: { 12335 const struct ctl_cmd_entry *entry; 12336 12337 /* 12338 * This is only used in SER_ONLY mode. 12339 */ 12340 free_io = 0; 12341 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12342 mtx_lock(&lun->lun_lock); 12343 if (ctl_scsiio_lun_check(ctl_softc, lun, 12344 entry, (struct ctl_scsiio *)io) != 0) { 12345 mtx_unlock(&lun->lun_lock); 12346 ctl_done(io); 12347 break; 12348 } 12349 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12350 mtx_unlock(&lun->lun_lock); 12351 ctl_enqueue_rtr(io); 12352 break; 12353 } 12354 case CTL_MSG_FINISH_IO: 12355 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 12356 free_io = 0; 12357 ctl_done(io); 12358 } else { 12359 free_io = 1; 12360 mtx_lock(&lun->lun_lock); 12361 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12362 ooa_links); 12363 ctl_check_blocked(lun); 12364 mtx_unlock(&lun->lun_lock); 12365 } 12366 break; 12367 case CTL_MSG_PERS_ACTION: 12368 ctl_hndl_per_res_out_on_other_sc( 12369 (union ctl_ha_msg *)&io->presio.pr_msg); 12370 free_io = 1; 12371 break; 12372 case CTL_MSG_BAD_JUJU: 12373 free_io = 0; 12374 ctl_done(io); 12375 break; 12376 case CTL_MSG_DATAMOVE: 12377 /* Only used in XFER mode */ 12378 free_io = 0; 12379 ctl_datamove_remote(io); 12380 break; 12381 case CTL_MSG_DATAMOVE_DONE: 12382 /* Only used in XFER mode */ 12383 free_io = 0; 12384 io->scsiio.be_move_done(io); 12385 break; 12386 default: 12387 free_io = 1; 12388 printf("%s: Invalid message type %d\n", 12389 __func__, io->io_hdr.msg_type); 12390 break; 12391 } 12392 if (free_io) 12393 ctl_free_io(io); 12394 12395} 12396 12397 12398/* 12399 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12400 * there is no match. 12401 */ 12402static ctl_lun_error_pattern 12403ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12404{ 12405 const struct ctl_cmd_entry *entry; 12406 ctl_lun_error_pattern filtered_pattern, pattern; 12407 12408 pattern = desc->error_pattern; 12409 12410 /* 12411 * XXX KDM we need more data passed into this function to match a 12412 * custom pattern, and we actually need to implement custom pattern 12413 * matching. 12414 */ 12415 if (pattern & CTL_LUN_PAT_CMD) 12416 return (CTL_LUN_PAT_CMD); 12417 12418 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12419 return (CTL_LUN_PAT_ANY); 12420 12421 entry = ctl_get_cmd_entry(ctsio, NULL); 12422 12423 filtered_pattern = entry->pattern & pattern; 12424 12425 /* 12426 * If the user requested specific flags in the pattern (e.g. 12427 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12428 * flags. 12429 * 12430 * If the user did not specify any flags, it doesn't matter whether 12431 * or not the command supports the flags. 12432 */ 12433 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12434 (pattern & ~CTL_LUN_PAT_MASK)) 12435 return (CTL_LUN_PAT_NONE); 12436 12437 /* 12438 * If the user asked for a range check, see if the requested LBA 12439 * range overlaps with this command's LBA range. 12440 */ 12441 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12442 uint64_t lba1; 12443 uint64_t len1; 12444 ctl_action action; 12445 int retval; 12446 12447 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12448 if (retval != 0) 12449 return (CTL_LUN_PAT_NONE); 12450 12451 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12452 desc->lba_range.len); 12453 /* 12454 * A "pass" means that the LBA ranges don't overlap, so 12455 * this doesn't match the user's range criteria. 12456 */ 12457 if (action == CTL_ACTION_PASS) 12458 return (CTL_LUN_PAT_NONE); 12459 } 12460 12461 return (filtered_pattern); 12462} 12463 12464static void 12465ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12466{ 12467 struct ctl_error_desc *desc, *desc2; 12468 12469 mtx_assert(&lun->lun_lock, MA_OWNED); 12470 12471 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12472 ctl_lun_error_pattern pattern; 12473 /* 12474 * Check to see whether this particular command matches 12475 * the pattern in the descriptor. 12476 */ 12477 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12478 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12479 continue; 12480 12481 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12482 case CTL_LUN_INJ_ABORTED: 12483 ctl_set_aborted(&io->scsiio); 12484 break; 12485 case CTL_LUN_INJ_MEDIUM_ERR: 12486 ctl_set_medium_error(&io->scsiio); 12487 break; 12488 case CTL_LUN_INJ_UA: 12489 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12490 * OCCURRED */ 12491 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12492 break; 12493 case CTL_LUN_INJ_CUSTOM: 12494 /* 12495 * We're assuming the user knows what he is doing. 12496 * Just copy the sense information without doing 12497 * checks. 12498 */ 12499 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12500 ctl_min(sizeof(desc->custom_sense), 12501 sizeof(io->scsiio.sense_data))); 12502 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12503 io->scsiio.sense_len = SSD_FULL_SIZE; 12504 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12505 break; 12506 case CTL_LUN_INJ_NONE: 12507 default: 12508 /* 12509 * If this is an error injection type we don't know 12510 * about, clear the continuous flag (if it is set) 12511 * so it will get deleted below. 12512 */ 12513 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12514 break; 12515 } 12516 /* 12517 * By default, each error injection action is a one-shot 12518 */ 12519 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12520 continue; 12521 12522 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12523 12524 free(desc, M_CTL); 12525 } 12526} 12527 12528#ifdef CTL_IO_DELAY 12529static void 12530ctl_datamove_timer_wakeup(void *arg) 12531{ 12532 union ctl_io *io; 12533 12534 io = (union ctl_io *)arg; 12535 12536 ctl_datamove(io); 12537} 12538#endif /* CTL_IO_DELAY */ 12539 12540void 12541ctl_datamove(union ctl_io *io) 12542{ 12543 void (*fe_datamove)(union ctl_io *io); 12544 12545 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12546 12547 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12548 12549#ifdef CTL_TIME_IO 12550 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12551 char str[256]; 12552 char path_str[64]; 12553 struct sbuf sb; 12554 12555 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12556 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12557 12558 sbuf_cat(&sb, path_str); 12559 switch (io->io_hdr.io_type) { 12560 case CTL_IO_SCSI: 12561 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12562 sbuf_printf(&sb, "\n"); 12563 sbuf_cat(&sb, path_str); 12564 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12565 io->scsiio.tag_num, io->scsiio.tag_type); 12566 break; 12567 case CTL_IO_TASK: 12568 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12569 "Tag Type: %d\n", io->taskio.task_action, 12570 io->taskio.tag_num, io->taskio.tag_type); 12571 break; 12572 default: 12573 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12574 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12575 break; 12576 } 12577 sbuf_cat(&sb, path_str); 12578 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12579 (intmax_t)time_uptime - io->io_hdr.start_time); 12580 sbuf_finish(&sb); 12581 printf("%s", sbuf_data(&sb)); 12582 } 12583#endif /* CTL_TIME_IO */ 12584 12585#ifdef CTL_IO_DELAY 12586 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12587 struct ctl_lun *lun; 12588 12589 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12590 12591 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12592 } else { 12593 struct ctl_lun *lun; 12594 12595 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12596 if ((lun != NULL) 12597 && (lun->delay_info.datamove_delay > 0)) { 12598 struct callout *callout; 12599 12600 callout = (struct callout *)&io->io_hdr.timer_bytes; 12601 callout_init(callout, /*mpsafe*/ 1); 12602 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12603 callout_reset(callout, 12604 lun->delay_info.datamove_delay * hz, 12605 ctl_datamove_timer_wakeup, io); 12606 if (lun->delay_info.datamove_type == 12607 CTL_DELAY_TYPE_ONESHOT) 12608 lun->delay_info.datamove_delay = 0; 12609 return; 12610 } 12611 } 12612#endif 12613 12614 /* 12615 * This command has been aborted. Set the port status, so we fail 12616 * the data move. 12617 */ 12618 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12619 printf("ctl_datamove: tag 0x%04x on (%ju:%d:%ju:%d) aborted\n", 12620 io->scsiio.tag_num,(uintmax_t)io->io_hdr.nexus.initid.id, 12621 io->io_hdr.nexus.targ_port, 12622 (uintmax_t)io->io_hdr.nexus.targ_target.id, 12623 io->io_hdr.nexus.targ_lun); 12624 io->io_hdr.port_status = 31337; 12625 /* 12626 * Note that the backend, in this case, will get the 12627 * callback in its context. In other cases it may get 12628 * called in the frontend's interrupt thread context. 12629 */ 12630 io->scsiio.be_move_done(io); 12631 return; 12632 } 12633 12634 /* Don't confuse frontend with zero length data move. */ 12635 if (io->scsiio.kern_data_len == 0) { 12636 io->scsiio.be_move_done(io); 12637 return; 12638 } 12639 12640 /* 12641 * If we're in XFER mode and this I/O is from the other shelf 12642 * controller, we need to send the DMA to the other side to 12643 * actually transfer the data to/from the host. In serialize only 12644 * mode the transfer happens below CTL and ctl_datamove() is only 12645 * called on the machine that originally received the I/O. 12646 */ 12647 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12648 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12649 union ctl_ha_msg msg; 12650 uint32_t sg_entries_sent; 12651 int do_sg_copy; 12652 int i; 12653 12654 memset(&msg, 0, sizeof(msg)); 12655 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12656 msg.hdr.original_sc = io->io_hdr.original_sc; 12657 msg.hdr.serializing_sc = io; 12658 msg.hdr.nexus = io->io_hdr.nexus; 12659 msg.dt.flags = io->io_hdr.flags; 12660 /* 12661 * We convert everything into a S/G list here. We can't 12662 * pass by reference, only by value between controllers. 12663 * So we can't pass a pointer to the S/G list, only as many 12664 * S/G entries as we can fit in here. If it's possible for 12665 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12666 * then we need to break this up into multiple transfers. 12667 */ 12668 if (io->scsiio.kern_sg_entries == 0) { 12669 msg.dt.kern_sg_entries = 1; 12670 /* 12671 * If this is in cached memory, flush the cache 12672 * before we send the DMA request to the other 12673 * controller. We want to do this in either the 12674 * read or the write case. The read case is 12675 * straightforward. In the write case, we want to 12676 * make sure nothing is in the local cache that 12677 * could overwrite the DMAed data. 12678 */ 12679 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12680 /* 12681 * XXX KDM use bus_dmamap_sync() here. 12682 */ 12683 } 12684 12685 /* 12686 * Convert to a physical address if this is a 12687 * virtual address. 12688 */ 12689 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12690 msg.dt.sg_list[0].addr = 12691 io->scsiio.kern_data_ptr; 12692 } else { 12693 /* 12694 * XXX KDM use busdma here! 12695 */ 12696#if 0 12697 msg.dt.sg_list[0].addr = (void *) 12698 vtophys(io->scsiio.kern_data_ptr); 12699#endif 12700 } 12701 12702 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12703 do_sg_copy = 0; 12704 } else { 12705 struct ctl_sg_entry *sgl; 12706 12707 do_sg_copy = 1; 12708 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12709 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 12710 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12711 /* 12712 * XXX KDM use bus_dmamap_sync() here. 12713 */ 12714 } 12715 } 12716 12717 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12718 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12719 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12720 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12721 msg.dt.sg_sequence = 0; 12722 12723 /* 12724 * Loop until we've sent all of the S/G entries. On the 12725 * other end, we'll recompose these S/G entries into one 12726 * contiguous list before passing it to the 12727 */ 12728 for (sg_entries_sent = 0; sg_entries_sent < 12729 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12730 msg.dt.cur_sg_entries = ctl_min((sizeof(msg.dt.sg_list)/ 12731 sizeof(msg.dt.sg_list[0])), 12732 msg.dt.kern_sg_entries - sg_entries_sent); 12733 12734 if (do_sg_copy != 0) { 12735 struct ctl_sg_entry *sgl; 12736 int j; 12737 12738 sgl = (struct ctl_sg_entry *) 12739 io->scsiio.kern_data_ptr; 12740 /* 12741 * If this is in cached memory, flush the cache 12742 * before we send the DMA request to the other 12743 * controller. We want to do this in either 12744 * the * read or the write case. The read 12745 * case is straightforward. In the write 12746 * case, we want to make sure nothing is 12747 * in the local cache that could overwrite 12748 * the DMAed data. 12749 */ 12750 12751 for (i = sg_entries_sent, j = 0; 12752 i < msg.dt.cur_sg_entries; i++, j++) { 12753 if ((io->io_hdr.flags & 12754 CTL_FLAG_NO_DATASYNC) == 0) { 12755 /* 12756 * XXX KDM use bus_dmamap_sync() 12757 */ 12758 } 12759 if ((io->io_hdr.flags & 12760 CTL_FLAG_BUS_ADDR) == 0) { 12761 /* 12762 * XXX KDM use busdma. 12763 */ 12764#if 0 12765 msg.dt.sg_list[j].addr =(void *) 12766 vtophys(sgl[i].addr); 12767#endif 12768 } else { 12769 msg.dt.sg_list[j].addr = 12770 sgl[i].addr; 12771 } 12772 msg.dt.sg_list[j].len = sgl[i].len; 12773 } 12774 } 12775 12776 sg_entries_sent += msg.dt.cur_sg_entries; 12777 if (sg_entries_sent >= msg.dt.kern_sg_entries) 12778 msg.dt.sg_last = 1; 12779 else 12780 msg.dt.sg_last = 0; 12781 12782 /* 12783 * XXX KDM drop and reacquire the lock here? 12784 */ 12785 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12786 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 12787 /* 12788 * XXX do something here. 12789 */ 12790 } 12791 12792 msg.dt.sent_sg_entries = sg_entries_sent; 12793 } 12794 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12795 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) 12796 ctl_failover_io(io, /*have_lock*/ 0); 12797 12798 } else { 12799 12800 /* 12801 * Lookup the fe_datamove() function for this particular 12802 * front end. 12803 */ 12804 fe_datamove = 12805 control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12806 12807 fe_datamove(io); 12808 } 12809} 12810 12811static void 12812ctl_send_datamove_done(union ctl_io *io, int have_lock) 12813{ 12814 union ctl_ha_msg msg; 12815 int isc_status; 12816 12817 memset(&msg, 0, sizeof(msg)); 12818 12819 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12820 msg.hdr.original_sc = io; 12821 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12822 msg.hdr.nexus = io->io_hdr.nexus; 12823 msg.hdr.status = io->io_hdr.status; 12824 msg.scsi.tag_num = io->scsiio.tag_num; 12825 msg.scsi.tag_type = io->scsiio.tag_type; 12826 msg.scsi.scsi_status = io->scsiio.scsi_status; 12827 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12828 sizeof(io->scsiio.sense_data)); 12829 msg.scsi.sense_len = io->scsiio.sense_len; 12830 msg.scsi.sense_residual = io->scsiio.sense_residual; 12831 msg.scsi.fetd_status = io->io_hdr.port_status; 12832 msg.scsi.residual = io->scsiio.residual; 12833 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12834 12835 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12836 ctl_failover_io(io, /*have_lock*/ have_lock); 12837 return; 12838 } 12839 12840 isc_status = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0); 12841 if (isc_status > CTL_HA_STATUS_SUCCESS) { 12842 /* XXX do something if this fails */ 12843 } 12844 12845} 12846 12847/* 12848 * The DMA to the remote side is done, now we need to tell the other side 12849 * we're done so it can continue with its data movement. 12850 */ 12851static void 12852ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12853{ 12854 union ctl_io *io; 12855 12856 io = rq->context; 12857 12858 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12859 printf("%s: ISC DMA write failed with error %d", __func__, 12860 rq->ret); 12861 ctl_set_internal_failure(&io->scsiio, 12862 /*sks_valid*/ 1, 12863 /*retry_count*/ rq->ret); 12864 } 12865 12866 ctl_dt_req_free(rq); 12867 12868 /* 12869 * In this case, we had to malloc the memory locally. Free it. 12870 */ 12871 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12872 int i; 12873 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12874 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12875 } 12876 /* 12877 * The data is in local and remote memory, so now we need to send 12878 * status (good or back) back to the other side. 12879 */ 12880 ctl_send_datamove_done(io, /*have_lock*/ 0); 12881} 12882 12883/* 12884 * We've moved the data from the host/controller into local memory. Now we 12885 * need to push it over to the remote controller's memory. 12886 */ 12887static int 12888ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12889{ 12890 int retval; 12891 12892 retval = 0; 12893 12894 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12895 ctl_datamove_remote_write_cb); 12896 12897 return (retval); 12898} 12899 12900static void 12901ctl_datamove_remote_write(union ctl_io *io) 12902{ 12903 int retval; 12904 void (*fe_datamove)(union ctl_io *io); 12905 12906 /* 12907 * - Get the data from the host/HBA into local memory. 12908 * - DMA memory from the local controller to the remote controller. 12909 * - Send status back to the remote controller. 12910 */ 12911 12912 retval = ctl_datamove_remote_sgl_setup(io); 12913 if (retval != 0) 12914 return; 12915 12916 /* Switch the pointer over so the FETD knows what to do */ 12917 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12918 12919 /* 12920 * Use a custom move done callback, since we need to send completion 12921 * back to the other controller, not to the backend on this side. 12922 */ 12923 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12924 12925 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12926 12927 fe_datamove(io); 12928 12929 return; 12930 12931} 12932 12933static int 12934ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12935{ 12936#if 0 12937 char str[256]; 12938 char path_str[64]; 12939 struct sbuf sb; 12940#endif 12941 12942 /* 12943 * In this case, we had to malloc the memory locally. Free it. 12944 */ 12945 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12946 int i; 12947 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12948 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12949 } 12950 12951#if 0 12952 scsi_path_string(io, path_str, sizeof(path_str)); 12953 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12954 sbuf_cat(&sb, path_str); 12955 scsi_command_string(&io->scsiio, NULL, &sb); 12956 sbuf_printf(&sb, "\n"); 12957 sbuf_cat(&sb, path_str); 12958 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12959 io->scsiio.tag_num, io->scsiio.tag_type); 12960 sbuf_cat(&sb, path_str); 12961 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12962 io->io_hdr.flags, io->io_hdr.status); 12963 sbuf_finish(&sb); 12964 printk("%s", sbuf_data(&sb)); 12965#endif 12966 12967 12968 /* 12969 * The read is done, now we need to send status (good or bad) back 12970 * to the other side. 12971 */ 12972 ctl_send_datamove_done(io, /*have_lock*/ 0); 12973 12974 return (0); 12975} 12976 12977static void 12978ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12979{ 12980 union ctl_io *io; 12981 void (*fe_datamove)(union ctl_io *io); 12982 12983 io = rq->context; 12984 12985 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12986 printf("%s: ISC DMA read failed with error %d", __func__, 12987 rq->ret); 12988 ctl_set_internal_failure(&io->scsiio, 12989 /*sks_valid*/ 1, 12990 /*retry_count*/ rq->ret); 12991 } 12992 12993 ctl_dt_req_free(rq); 12994 12995 /* Switch the pointer over so the FETD knows what to do */ 12996 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12997 12998 /* 12999 * Use a custom move done callback, since we need to send completion 13000 * back to the other controller, not to the backend on this side. 13001 */ 13002 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 13003 13004 /* XXX KDM add checks like the ones in ctl_datamove? */ 13005 13006 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13007 13008 fe_datamove(io); 13009} 13010 13011static int 13012ctl_datamove_remote_sgl_setup(union ctl_io *io) 13013{ 13014 struct ctl_sg_entry *local_sglist, *remote_sglist; 13015 struct ctl_sg_entry *local_dma_sglist, *remote_dma_sglist; 13016 struct ctl_softc *softc; 13017 int retval; 13018 int i; 13019 13020 retval = 0; 13021 softc = control_softc; 13022 13023 local_sglist = io->io_hdr.local_sglist; 13024 local_dma_sglist = io->io_hdr.local_dma_sglist; 13025 remote_sglist = io->io_hdr.remote_sglist; 13026 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13027 13028 if (io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) { 13029 for (i = 0; i < io->scsiio.kern_sg_entries; i++) { 13030 local_sglist[i].len = remote_sglist[i].len; 13031 13032 /* 13033 * XXX Detect the situation where the RS-level I/O 13034 * redirector on the other side has already read the 13035 * data off of the AOR RS on this side, and 13036 * transferred it to remote (mirror) memory on the 13037 * other side. Since we already have the data in 13038 * memory here, we just need to use it. 13039 * 13040 * XXX KDM this can probably be removed once we 13041 * get the cache device code in and take the 13042 * current AOR implementation out. 13043 */ 13044#ifdef NEEDTOPORT 13045 if ((remote_sglist[i].addr >= 13046 (void *)vtophys(softc->mirr->addr)) 13047 && (remote_sglist[i].addr < 13048 ((void *)vtophys(softc->mirr->addr) + 13049 CacheMirrorOffset))) { 13050 local_sglist[i].addr = remote_sglist[i].addr - 13051 CacheMirrorOffset; 13052 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13053 CTL_FLAG_DATA_IN) 13054 io->io_hdr.flags |= CTL_FLAG_REDIR_DONE; 13055 } else { 13056 local_sglist[i].addr = remote_sglist[i].addr + 13057 CacheMirrorOffset; 13058 } 13059#endif 13060#if 0 13061 printf("%s: local %p, remote %p, len %d\n", 13062 __func__, local_sglist[i].addr, 13063 remote_sglist[i].addr, local_sglist[i].len); 13064#endif 13065 } 13066 } else { 13067 uint32_t len_to_go; 13068 13069 /* 13070 * In this case, we don't have automatically allocated 13071 * memory for this I/O on this controller. This typically 13072 * happens with internal CTL I/O -- e.g. inquiry, mode 13073 * sense, etc. Anything coming from RAIDCore will have 13074 * a mirror area available. 13075 */ 13076 len_to_go = io->scsiio.kern_data_len; 13077 13078 /* 13079 * Clear the no datasync flag, we have to use malloced 13080 * buffers. 13081 */ 13082 io->io_hdr.flags &= ~CTL_FLAG_NO_DATASYNC; 13083 13084 /* 13085 * The difficult thing here is that the size of the various 13086 * S/G segments may be different than the size from the 13087 * remote controller. That'll make it harder when DMAing 13088 * the data back to the other side. 13089 */ 13090 for (i = 0; (i < sizeof(io->io_hdr.remote_sglist) / 13091 sizeof(io->io_hdr.remote_sglist[0])) && 13092 (len_to_go > 0); i++) { 13093 local_sglist[i].len = ctl_min(len_to_go, 131072); 13094 CTL_SIZE_8B(local_dma_sglist[i].len, 13095 local_sglist[i].len); 13096 local_sglist[i].addr = 13097 malloc(local_dma_sglist[i].len, M_CTL,M_WAITOK); 13098 13099 local_dma_sglist[i].addr = local_sglist[i].addr; 13100 13101 if (local_sglist[i].addr == NULL) { 13102 int j; 13103 13104 printf("malloc failed for %zd bytes!", 13105 local_dma_sglist[i].len); 13106 for (j = 0; j < i; j++) { 13107 free(local_sglist[j].addr, M_CTL); 13108 } 13109 ctl_set_internal_failure(&io->scsiio, 13110 /*sks_valid*/ 1, 13111 /*retry_count*/ 4857); 13112 retval = 1; 13113 goto bailout_error; 13114 13115 } 13116 /* XXX KDM do we need a sync here? */ 13117 13118 len_to_go -= local_sglist[i].len; 13119 } 13120 /* 13121 * Reset the number of S/G entries accordingly. The 13122 * original number of S/G entries is available in 13123 * rem_sg_entries. 13124 */ 13125 io->scsiio.kern_sg_entries = i; 13126 13127#if 0 13128 printf("%s: kern_sg_entries = %d\n", __func__, 13129 io->scsiio.kern_sg_entries); 13130 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13131 printf("%s: sg[%d] = %p, %d (DMA: %d)\n", __func__, i, 13132 local_sglist[i].addr, local_sglist[i].len, 13133 local_dma_sglist[i].len); 13134#endif 13135 } 13136 13137 13138 return (retval); 13139 13140bailout_error: 13141 13142 ctl_send_datamove_done(io, /*have_lock*/ 0); 13143 13144 return (retval); 13145} 13146 13147static int 13148ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 13149 ctl_ha_dt_cb callback) 13150{ 13151 struct ctl_ha_dt_req *rq; 13152 struct ctl_sg_entry *remote_sglist, *local_sglist; 13153 struct ctl_sg_entry *remote_dma_sglist, *local_dma_sglist; 13154 uint32_t local_used, remote_used, total_used; 13155 int retval; 13156 int i, j; 13157 13158 retval = 0; 13159 13160 rq = ctl_dt_req_alloc(); 13161 13162 /* 13163 * If we failed to allocate the request, and if the DMA didn't fail 13164 * anyway, set busy status. This is just a resource allocation 13165 * failure. 13166 */ 13167 if ((rq == NULL) 13168 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)) 13169 ctl_set_busy(&io->scsiio); 13170 13171 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 13172 13173 if (rq != NULL) 13174 ctl_dt_req_free(rq); 13175 13176 /* 13177 * The data move failed. We need to return status back 13178 * to the other controller. No point in trying to DMA 13179 * data to the remote controller. 13180 */ 13181 13182 ctl_send_datamove_done(io, /*have_lock*/ 0); 13183 13184 retval = 1; 13185 13186 goto bailout; 13187 } 13188 13189 local_sglist = io->io_hdr.local_sglist; 13190 local_dma_sglist = io->io_hdr.local_dma_sglist; 13191 remote_sglist = io->io_hdr.remote_sglist; 13192 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13193 local_used = 0; 13194 remote_used = 0; 13195 total_used = 0; 13196 13197 if (io->io_hdr.flags & CTL_FLAG_REDIR_DONE) { 13198 rq->ret = CTL_HA_STATUS_SUCCESS; 13199 rq->context = io; 13200 callback(rq); 13201 goto bailout; 13202 } 13203 13204 /* 13205 * Pull/push the data over the wire from/to the other controller. 13206 * This takes into account the possibility that the local and 13207 * remote sglists may not be identical in terms of the size of 13208 * the elements and the number of elements. 13209 * 13210 * One fundamental assumption here is that the length allocated for 13211 * both the local and remote sglists is identical. Otherwise, we've 13212 * essentially got a coding error of some sort. 13213 */ 13214 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 13215 int isc_ret; 13216 uint32_t cur_len, dma_length; 13217 uint8_t *tmp_ptr; 13218 13219 rq->id = CTL_HA_DATA_CTL; 13220 rq->command = command; 13221 rq->context = io; 13222 13223 /* 13224 * Both pointers should be aligned. But it is possible 13225 * that the allocation length is not. They should both 13226 * also have enough slack left over at the end, though, 13227 * to round up to the next 8 byte boundary. 13228 */ 13229 cur_len = ctl_min(local_sglist[i].len - local_used, 13230 remote_sglist[j].len - remote_used); 13231 13232 /* 13233 * In this case, we have a size issue and need to decrease 13234 * the size, except in the case where we actually have less 13235 * than 8 bytes left. In that case, we need to increase 13236 * the DMA length to get the last bit. 13237 */ 13238 if ((cur_len & 0x7) != 0) { 13239 if (cur_len > 0x7) { 13240 cur_len = cur_len - (cur_len & 0x7); 13241 dma_length = cur_len; 13242 } else { 13243 CTL_SIZE_8B(dma_length, cur_len); 13244 } 13245 13246 } else 13247 dma_length = cur_len; 13248 13249 /* 13250 * If we had to allocate memory for this I/O, instead of using 13251 * the non-cached mirror memory, we'll need to flush the cache 13252 * before trying to DMA to the other controller. 13253 * 13254 * We could end up doing this multiple times for the same 13255 * segment if we have a larger local segment than remote 13256 * segment. That shouldn't be an issue. 13257 */ 13258 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 13259 /* 13260 * XXX KDM use bus_dmamap_sync() here. 13261 */ 13262 } 13263 13264 rq->size = dma_length; 13265 13266 tmp_ptr = (uint8_t *)local_sglist[i].addr; 13267 tmp_ptr += local_used; 13268 13269 /* Use physical addresses when talking to ISC hardware */ 13270 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 13271 /* XXX KDM use busdma */ 13272#if 0 13273 rq->local = vtophys(tmp_ptr); 13274#endif 13275 } else 13276 rq->local = tmp_ptr; 13277 13278 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 13279 tmp_ptr += remote_used; 13280 rq->remote = tmp_ptr; 13281 13282 rq->callback = NULL; 13283 13284 local_used += cur_len; 13285 if (local_used >= local_sglist[i].len) { 13286 i++; 13287 local_used = 0; 13288 } 13289 13290 remote_used += cur_len; 13291 if (remote_used >= remote_sglist[j].len) { 13292 j++; 13293 remote_used = 0; 13294 } 13295 total_used += cur_len; 13296 13297 if (total_used >= io->scsiio.kern_data_len) 13298 rq->callback = callback; 13299 13300 if ((rq->size & 0x7) != 0) { 13301 printf("%s: warning: size %d is not on 8b boundary\n", 13302 __func__, rq->size); 13303 } 13304 if (((uintptr_t)rq->local & 0x7) != 0) { 13305 printf("%s: warning: local %p not on 8b boundary\n", 13306 __func__, rq->local); 13307 } 13308 if (((uintptr_t)rq->remote & 0x7) != 0) { 13309 printf("%s: warning: remote %p not on 8b boundary\n", 13310 __func__, rq->local); 13311 } 13312#if 0 13313 printf("%s: %s: local %#x remote %#x size %d\n", __func__, 13314 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13315 rq->local, rq->remote, rq->size); 13316#endif 13317 13318 isc_ret = ctl_dt_single(rq); 13319 if (isc_ret == CTL_HA_STATUS_WAIT) 13320 continue; 13321 13322 if (isc_ret == CTL_HA_STATUS_DISCONNECT) { 13323 rq->ret = CTL_HA_STATUS_SUCCESS; 13324 } else { 13325 rq->ret = isc_ret; 13326 } 13327 callback(rq); 13328 goto bailout; 13329 } 13330 13331bailout: 13332 return (retval); 13333 13334} 13335 13336static void 13337ctl_datamove_remote_read(union ctl_io *io) 13338{ 13339 int retval; 13340 int i; 13341 13342 /* 13343 * This will send an error to the other controller in the case of a 13344 * failure. 13345 */ 13346 retval = ctl_datamove_remote_sgl_setup(io); 13347 if (retval != 0) 13348 return; 13349 13350 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13351 ctl_datamove_remote_read_cb); 13352 if ((retval != 0) 13353 && ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0)) { 13354 /* 13355 * Make sure we free memory if there was an error.. The 13356 * ctl_datamove_remote_xfer() function will send the 13357 * datamove done message, or call the callback with an 13358 * error if there is a problem. 13359 */ 13360 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13361 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13362 } 13363 13364 return; 13365} 13366 13367/* 13368 * Process a datamove request from the other controller. This is used for 13369 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13370 * first. Once that is complete, the data gets DMAed into the remote 13371 * controller's memory. For reads, we DMA from the remote controller's 13372 * memory into our memory first, and then move it out to the FETD. 13373 */ 13374static void 13375ctl_datamove_remote(union ctl_io *io) 13376{ 13377 struct ctl_softc *softc; 13378 13379 softc = control_softc; 13380 13381 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 13382 13383 /* 13384 * Note that we look for an aborted I/O here, but don't do some of 13385 * the other checks that ctl_datamove() normally does. 13386 * We don't need to run the datamove delay code, since that should 13387 * have been done if need be on the other controller. 13388 */ 13389 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13390 printf("%s: tag 0x%04x on (%d:%d:%d:%d) aborted\n", __func__, 13391 io->scsiio.tag_num, io->io_hdr.nexus.initid.id, 13392 io->io_hdr.nexus.targ_port, 13393 io->io_hdr.nexus.targ_target.id, 13394 io->io_hdr.nexus.targ_lun); 13395 io->io_hdr.port_status = 31338; 13396 ctl_send_datamove_done(io, /*have_lock*/ 0); 13397 return; 13398 } 13399 13400 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) { 13401 ctl_datamove_remote_write(io); 13402 } else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN){ 13403 ctl_datamove_remote_read(io); 13404 } else { 13405 union ctl_ha_msg msg; 13406 struct scsi_sense_data *sense; 13407 uint8_t sks[3]; 13408 int retry_count; 13409 13410 memset(&msg, 0, sizeof(msg)); 13411 13412 msg.hdr.msg_type = CTL_MSG_BAD_JUJU; 13413 msg.hdr.status = CTL_SCSI_ERROR; 13414 msg.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 13415 13416 retry_count = 4243; 13417 13418 sense = &msg.scsi.sense_data; 13419 sks[0] = SSD_SCS_VALID; 13420 sks[1] = (retry_count >> 8) & 0xff; 13421 sks[2] = retry_count & 0xff; 13422 13423 /* "Internal target failure" */ 13424 scsi_set_sense_data(sense, 13425 /*sense_format*/ SSD_TYPE_NONE, 13426 /*current_error*/ 1, 13427 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 13428 /*asc*/ 0x44, 13429 /*ascq*/ 0x00, 13430 /*type*/ SSD_ELEM_SKS, 13431 /*size*/ sizeof(sks), 13432 /*data*/ sks, 13433 SSD_ELEM_NONE); 13434 13435 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13436 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13437 ctl_failover_io(io, /*have_lock*/ 1); 13438 return; 13439 } 13440 13441 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0) > 13442 CTL_HA_STATUS_SUCCESS) { 13443 /* XXX KDM what to do if this fails? */ 13444 } 13445 return; 13446 } 13447 13448} 13449 13450static int 13451ctl_process_done(union ctl_io *io) 13452{ 13453 struct ctl_lun *lun; 13454 struct ctl_softc *ctl_softc = control_softc; 13455 void (*fe_done)(union ctl_io *io); 13456 uint32_t targ_port = ctl_port_idx(io->io_hdr.nexus.targ_port); 13457 13458 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13459 13460 fe_done = 13461 control_softc->ctl_ports[targ_port]->fe_done; 13462 13463#ifdef CTL_TIME_IO 13464 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13465 char str[256]; 13466 char path_str[64]; 13467 struct sbuf sb; 13468 13469 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13470 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13471 13472 sbuf_cat(&sb, path_str); 13473 switch (io->io_hdr.io_type) { 13474 case CTL_IO_SCSI: 13475 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13476 sbuf_printf(&sb, "\n"); 13477 sbuf_cat(&sb, path_str); 13478 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13479 io->scsiio.tag_num, io->scsiio.tag_type); 13480 break; 13481 case CTL_IO_TASK: 13482 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13483 "Tag Type: %d\n", io->taskio.task_action, 13484 io->taskio.tag_num, io->taskio.tag_type); 13485 break; 13486 default: 13487 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13488 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13489 break; 13490 } 13491 sbuf_cat(&sb, path_str); 13492 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13493 (intmax_t)time_uptime - io->io_hdr.start_time); 13494 sbuf_finish(&sb); 13495 printf("%s", sbuf_data(&sb)); 13496 } 13497#endif /* CTL_TIME_IO */ 13498 13499 switch (io->io_hdr.io_type) { 13500 case CTL_IO_SCSI: 13501 break; 13502 case CTL_IO_TASK: 13503 if (bootverbose || (ctl_debug & CTL_DEBUG_INFO)) 13504 ctl_io_error_print(io, NULL); 13505 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 13506 ctl_free_io(io); 13507 else 13508 fe_done(io); 13509 return (CTL_RETVAL_COMPLETE); 13510 default: 13511 panic("ctl_process_done: invalid io type %d\n", 13512 io->io_hdr.io_type); 13513 break; /* NOTREACHED */ 13514 } 13515 13516 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13517 if (lun == NULL) { 13518 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13519 io->io_hdr.nexus.targ_mapped_lun)); 13520 goto bailout; 13521 } 13522 13523 mtx_lock(&lun->lun_lock); 13524 13525 /* 13526 * Check to see if we have any errors to inject here. We only 13527 * inject errors for commands that don't already have errors set. 13528 */ 13529 if ((STAILQ_FIRST(&lun->error_list) != NULL) 13530 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) 13531 ctl_inject_error(lun, io); 13532 13533 /* 13534 * XXX KDM how do we treat commands that aren't completed 13535 * successfully? 13536 * 13537 * XXX KDM should we also track I/O latency? 13538 */ 13539 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13540 io->io_hdr.io_type == CTL_IO_SCSI) { 13541#ifdef CTL_TIME_IO 13542 struct bintime cur_bt; 13543#endif 13544 int type; 13545 13546 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13547 CTL_FLAG_DATA_IN) 13548 type = CTL_STATS_READ; 13549 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13550 CTL_FLAG_DATA_OUT) 13551 type = CTL_STATS_WRITE; 13552 else 13553 type = CTL_STATS_NO_IO; 13554 13555 lun->stats.ports[targ_port].bytes[type] += 13556 io->scsiio.kern_total_len; 13557 lun->stats.ports[targ_port].operations[type]++; 13558#ifdef CTL_TIME_IO 13559 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13560 &io->io_hdr.dma_bt); 13561 lun->stats.ports[targ_port].num_dmas[type] += 13562 io->io_hdr.num_dmas; 13563 getbintime(&cur_bt); 13564 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13565 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13566#endif 13567 } 13568 13569 /* 13570 * Remove this from the OOA queue. 13571 */ 13572 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13573 13574 /* 13575 * Run through the blocked queue on this LUN and see if anything 13576 * has become unblocked, now that this transaction is done. 13577 */ 13578 ctl_check_blocked(lun); 13579 13580 /* 13581 * If the LUN has been invalidated, free it if there is nothing 13582 * left on its OOA queue. 13583 */ 13584 if ((lun->flags & CTL_LUN_INVALID) 13585 && TAILQ_EMPTY(&lun->ooa_queue)) { 13586 mtx_unlock(&lun->lun_lock); 13587 mtx_lock(&ctl_softc->ctl_lock); 13588 ctl_free_lun(lun); 13589 mtx_unlock(&ctl_softc->ctl_lock); 13590 } else 13591 mtx_unlock(&lun->lun_lock); 13592 13593bailout: 13594 13595 /* 13596 * If this command has been aborted, make sure we set the status 13597 * properly. The FETD is responsible for freeing the I/O and doing 13598 * whatever it needs to do to clean up its state. 13599 */ 13600 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13601 ctl_set_task_aborted(&io->scsiio); 13602 13603 /* 13604 * If enabled, print command error status. 13605 * We don't print UAs unless debugging was enabled explicitly. 13606 */ 13607 do { 13608 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) 13609 break; 13610 if (!bootverbose && (ctl_debug & CTL_DEBUG_INFO) == 0) 13611 break; 13612 if ((ctl_debug & CTL_DEBUG_INFO) == 0 && 13613 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SCSI_ERROR) && 13614 (io->scsiio.scsi_status == SCSI_STATUS_CHECK_COND)) { 13615 int error_code, sense_key, asc, ascq; 13616 13617 scsi_extract_sense_len(&io->scsiio.sense_data, 13618 io->scsiio.sense_len, &error_code, &sense_key, 13619 &asc, &ascq, /*show_errors*/ 0); 13620 if (sense_key == SSD_KEY_UNIT_ATTENTION) 13621 break; 13622 } 13623 13624 ctl_io_error_print(io, NULL); 13625 } while (0); 13626 13627 /* 13628 * Tell the FETD or the other shelf controller we're done with this 13629 * command. Note that only SCSI commands get to this point. Task 13630 * management commands are completed above. 13631 * 13632 * We only send status to the other controller if we're in XFER 13633 * mode. In SER_ONLY mode, the I/O is done on the controller that 13634 * received the I/O (from CTL's perspective), and so the status is 13635 * generated there. 13636 * 13637 * XXX KDM if we hold the lock here, we could cause a deadlock 13638 * if the frontend comes back in in this context to queue 13639 * something. 13640 */ 13641 if ((ctl_softc->ha_mode == CTL_HA_MODE_XFER) 13642 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 13643 union ctl_ha_msg msg; 13644 13645 memset(&msg, 0, sizeof(msg)); 13646 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13647 msg.hdr.original_sc = io->io_hdr.original_sc; 13648 msg.hdr.nexus = io->io_hdr.nexus; 13649 msg.hdr.status = io->io_hdr.status; 13650 msg.scsi.scsi_status = io->scsiio.scsi_status; 13651 msg.scsi.tag_num = io->scsiio.tag_num; 13652 msg.scsi.tag_type = io->scsiio.tag_type; 13653 msg.scsi.sense_len = io->scsiio.sense_len; 13654 msg.scsi.sense_residual = io->scsiio.sense_residual; 13655 msg.scsi.residual = io->scsiio.residual; 13656 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13657 sizeof(io->scsiio.sense_data)); 13658 /* 13659 * We copy this whether or not this is an I/O-related 13660 * command. Otherwise, we'd have to go and check to see 13661 * whether it's a read/write command, and it really isn't 13662 * worth it. 13663 */ 13664 memcpy(&msg.scsi.lbalen, 13665 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 13666 sizeof(msg.scsi.lbalen)); 13667 13668 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13669 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13670 /* XXX do something here */ 13671 } 13672 13673 ctl_free_io(io); 13674 } else 13675 fe_done(io); 13676 13677 return (CTL_RETVAL_COMPLETE); 13678} 13679 13680#ifdef CTL_WITH_CA 13681/* 13682 * Front end should call this if it doesn't do autosense. When the request 13683 * sense comes back in from the initiator, we'll dequeue this and send it. 13684 */ 13685int 13686ctl_queue_sense(union ctl_io *io) 13687{ 13688 struct ctl_lun *lun; 13689 struct ctl_softc *ctl_softc; 13690 uint32_t initidx, targ_lun; 13691 13692 ctl_softc = control_softc; 13693 13694 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13695 13696 /* 13697 * LUN lookup will likely move to the ctl_work_thread() once we 13698 * have our new queueing infrastructure (that doesn't put things on 13699 * a per-LUN queue initially). That is so that we can handle 13700 * things like an INQUIRY to a LUN that we don't have enabled. We 13701 * can't deal with that right now. 13702 */ 13703 mtx_lock(&ctl_softc->ctl_lock); 13704 13705 /* 13706 * If we don't have a LUN for this, just toss the sense 13707 * information. 13708 */ 13709 targ_lun = io->io_hdr.nexus.targ_lun; 13710 targ_lun = ctl_map_lun(io->io_hdr.nexus.targ_port, targ_lun); 13711 if ((targ_lun < CTL_MAX_LUNS) 13712 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 13713 lun = ctl_softc->ctl_luns[targ_lun]; 13714 else 13715 goto bailout; 13716 13717 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13718 13719 mtx_lock(&lun->lun_lock); 13720 /* 13721 * Already have CA set for this LUN...toss the sense information. 13722 */ 13723 if (ctl_is_set(lun->have_ca, initidx)) { 13724 mtx_unlock(&lun->lun_lock); 13725 goto bailout; 13726 } 13727 13728 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13729 ctl_min(sizeof(lun->pending_sense[initidx]), 13730 sizeof(io->scsiio.sense_data))); 13731 ctl_set_mask(lun->have_ca, initidx); 13732 mtx_unlock(&lun->lun_lock); 13733 13734bailout: 13735 mtx_unlock(&ctl_softc->ctl_lock); 13736 13737 ctl_free_io(io); 13738 13739 return (CTL_RETVAL_COMPLETE); 13740} 13741#endif 13742 13743/* 13744 * Primary command inlet from frontend ports. All SCSI and task I/O 13745 * requests must go through this function. 13746 */ 13747int 13748ctl_queue(union ctl_io *io) 13749{ 13750 struct ctl_softc *ctl_softc; 13751 13752 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13753 13754 ctl_softc = control_softc; 13755 13756#ifdef CTL_TIME_IO 13757 io->io_hdr.start_time = time_uptime; 13758 getbintime(&io->io_hdr.start_bt); 13759#endif /* CTL_TIME_IO */ 13760 13761 /* Map FE-specific LUN ID into global one. */ 13762 io->io_hdr.nexus.targ_mapped_lun = 13763 ctl_map_lun(io->io_hdr.nexus.targ_port, io->io_hdr.nexus.targ_lun); 13764 13765 switch (io->io_hdr.io_type) { 13766 case CTL_IO_SCSI: 13767 case CTL_IO_TASK: 13768 if (ctl_debug & CTL_DEBUG_CDB) 13769 ctl_io_print(io); 13770 ctl_enqueue_incoming(io); 13771 break; 13772 default: 13773 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13774 return (EINVAL); 13775 } 13776 13777 return (CTL_RETVAL_COMPLETE); 13778} 13779 13780#ifdef CTL_IO_DELAY 13781static void 13782ctl_done_timer_wakeup(void *arg) 13783{ 13784 union ctl_io *io; 13785 13786 io = (union ctl_io *)arg; 13787 ctl_done(io); 13788} 13789#endif /* CTL_IO_DELAY */ 13790 13791void 13792ctl_done(union ctl_io *io) 13793{ 13794 struct ctl_softc *ctl_softc; 13795 13796 ctl_softc = control_softc; 13797 13798 /* 13799 * Enable this to catch duplicate completion issues. 13800 */ 13801#if 0 13802 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13803 printf("%s: type %d msg %d cdb %x iptl: " 13804 "%d:%d:%d:%d tag 0x%04x " 13805 "flag %#x status %x\n", 13806 __func__, 13807 io->io_hdr.io_type, 13808 io->io_hdr.msg_type, 13809 io->scsiio.cdb[0], 13810 io->io_hdr.nexus.initid.id, 13811 io->io_hdr.nexus.targ_port, 13812 io->io_hdr.nexus.targ_target.id, 13813 io->io_hdr.nexus.targ_lun, 13814 (io->io_hdr.io_type == 13815 CTL_IO_TASK) ? 13816 io->taskio.tag_num : 13817 io->scsiio.tag_num, 13818 io->io_hdr.flags, 13819 io->io_hdr.status); 13820 } else 13821 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13822#endif 13823 13824 /* 13825 * This is an internal copy of an I/O, and should not go through 13826 * the normal done processing logic. 13827 */ 13828 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13829 return; 13830 13831 /* 13832 * We need to send a msg to the serializing shelf to finish the IO 13833 * as well. We don't send a finish message to the other shelf if 13834 * this is a task management command. Task management commands 13835 * aren't serialized in the OOA queue, but rather just executed on 13836 * both shelf controllers for commands that originated on that 13837 * controller. 13838 */ 13839 if ((io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC) 13840 && (io->io_hdr.io_type != CTL_IO_TASK)) { 13841 union ctl_ha_msg msg_io; 13842 13843 msg_io.hdr.msg_type = CTL_MSG_FINISH_IO; 13844 msg_io.hdr.serializing_sc = io->io_hdr.serializing_sc; 13845 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_io, 13846 sizeof(msg_io), 0 ) != CTL_HA_STATUS_SUCCESS) { 13847 } 13848 /* continue on to finish IO */ 13849 } 13850#ifdef CTL_IO_DELAY 13851 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13852 struct ctl_lun *lun; 13853 13854 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13855 13856 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13857 } else { 13858 struct ctl_lun *lun; 13859 13860 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13861 13862 if ((lun != NULL) 13863 && (lun->delay_info.done_delay > 0)) { 13864 struct callout *callout; 13865 13866 callout = (struct callout *)&io->io_hdr.timer_bytes; 13867 callout_init(callout, /*mpsafe*/ 1); 13868 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13869 callout_reset(callout, 13870 lun->delay_info.done_delay * hz, 13871 ctl_done_timer_wakeup, io); 13872 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13873 lun->delay_info.done_delay = 0; 13874 return; 13875 } 13876 } 13877#endif /* CTL_IO_DELAY */ 13878 13879 ctl_enqueue_done(io); 13880} 13881 13882int 13883ctl_isc(struct ctl_scsiio *ctsio) 13884{ 13885 struct ctl_lun *lun; 13886 int retval; 13887 13888 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13889 13890 CTL_DEBUG_PRINT(("ctl_isc: command: %02x\n", ctsio->cdb[0])); 13891 13892 CTL_DEBUG_PRINT(("ctl_isc: calling data_submit()\n")); 13893 13894 retval = lun->backend->data_submit((union ctl_io *)ctsio); 13895 13896 return (retval); 13897} 13898 13899 13900static void 13901ctl_work_thread(void *arg) 13902{ 13903 struct ctl_thread *thr = (struct ctl_thread *)arg; 13904 struct ctl_softc *softc = thr->ctl_softc; 13905 union ctl_io *io; 13906 int retval; 13907 13908 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13909 13910 for (;;) { 13911 retval = 0; 13912 13913 /* 13914 * We handle the queues in this order: 13915 * - ISC 13916 * - done queue (to free up resources, unblock other commands) 13917 * - RtR queue 13918 * - incoming queue 13919 * 13920 * If those queues are empty, we break out of the loop and 13921 * go to sleep. 13922 */ 13923 mtx_lock(&thr->queue_lock); 13924 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13925 if (io != NULL) { 13926 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13927 mtx_unlock(&thr->queue_lock); 13928 ctl_handle_isc(io); 13929 continue; 13930 } 13931 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13932 if (io != NULL) { 13933 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13934 /* clear any blocked commands, call fe_done */ 13935 mtx_unlock(&thr->queue_lock); 13936 retval = ctl_process_done(io); 13937 continue; 13938 } 13939 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13940 if (io != NULL) { 13941 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13942 mtx_unlock(&thr->queue_lock); 13943 if (io->io_hdr.io_type == CTL_IO_TASK) 13944 ctl_run_task(io); 13945 else 13946 ctl_scsiio_precheck(softc, &io->scsiio); 13947 continue; 13948 } 13949 if (!ctl_pause_rtr) { 13950 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13951 if (io != NULL) { 13952 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13953 mtx_unlock(&thr->queue_lock); 13954 retval = ctl_scsiio(&io->scsiio); 13955 if (retval != CTL_RETVAL_COMPLETE) 13956 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13957 continue; 13958 } 13959 } 13960 13961 /* Sleep until we have something to do. */ 13962 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13963 } 13964} 13965 13966static void 13967ctl_lun_thread(void *arg) 13968{ 13969 struct ctl_softc *softc = (struct ctl_softc *)arg; 13970 struct ctl_be_lun *be_lun; 13971 int retval; 13972 13973 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 13974 13975 for (;;) { 13976 retval = 0; 13977 mtx_lock(&softc->ctl_lock); 13978 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 13979 if (be_lun != NULL) { 13980 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 13981 mtx_unlock(&softc->ctl_lock); 13982 ctl_create_lun(be_lun); 13983 continue; 13984 } 13985 13986 /* Sleep until we have something to do. */ 13987 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 13988 PDROP | PRIBIO, "-", 0); 13989 } 13990} 13991 13992static void 13993ctl_thresh_thread(void *arg) 13994{ 13995 struct ctl_softc *softc = (struct ctl_softc *)arg; 13996 struct ctl_lun *lun; 13997 struct ctl_be_lun *be_lun; 13998 struct scsi_da_rw_recovery_page *rwpage; 13999 struct ctl_logical_block_provisioning_page *page; 14000 const char *attr; 14001 uint64_t thres, val; 14002 int i, e; 14003 14004 CTL_DEBUG_PRINT(("ctl_thresh_thread starting\n")); 14005 14006 for (;;) { 14007 mtx_lock(&softc->ctl_lock); 14008 STAILQ_FOREACH(lun, &softc->lun_list, links) { 14009 be_lun = lun->be_lun; 14010 if ((lun->flags & CTL_LUN_DISABLED) || 14011 (lun->flags & CTL_LUN_OFFLINE) || 14012 (be_lun->flags & CTL_LUN_FLAG_UNMAP) == 0 || 14013 lun->backend->lun_attr == NULL) 14014 continue; 14015 rwpage = &lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT]; 14016 if ((rwpage->byte8 & SMS_RWER_LBPERE) == 0) 14017 continue; 14018 e = 0; 14019 page = &lun->mode_pages.lbp_page[CTL_PAGE_CURRENT]; 14020 for (i = 0; i < CTL_NUM_LBP_THRESH; i++) { 14021 if ((page->descr[i].flags & SLBPPD_ENABLED) == 0) 14022 continue; 14023 thres = scsi_4btoul(page->descr[i].count); 14024 thres <<= CTL_LBP_EXPONENT; 14025 switch (page->descr[i].resource) { 14026 case 0x01: 14027 attr = "blocksavail"; 14028 break; 14029 case 0x02: 14030 attr = "blocksused"; 14031 break; 14032 case 0xf1: 14033 attr = "poolblocksavail"; 14034 break; 14035 case 0xf2: 14036 attr = "poolblocksused"; 14037 break; 14038 default: 14039 continue; 14040 } 14041 mtx_unlock(&softc->ctl_lock); // XXX 14042 val = lun->backend->lun_attr( 14043 lun->be_lun->be_lun, attr); 14044 mtx_lock(&softc->ctl_lock); 14045 if (val == UINT64_MAX) 14046 continue; 14047 if ((page->descr[i].flags & SLBPPD_ARMING_MASK) 14048 == SLBPPD_ARMING_INC) 14049 e |= (val >= thres); 14050 else 14051 e |= (val <= thres); 14052 } 14053 mtx_lock(&lun->lun_lock); 14054 if (e) { 14055 if (lun->lasttpt == 0 || 14056 time_uptime - lun->lasttpt >= CTL_LBP_UA_PERIOD) { 14057 lun->lasttpt = time_uptime; 14058 for (i = 0; i < CTL_MAX_INITIATORS; i++) 14059 lun->pending_ua[i] |= 14060 CTL_UA_THIN_PROV_THRES; 14061 } 14062 } else { 14063 lun->lasttpt = 0; 14064 for (i = 0; i < CTL_MAX_INITIATORS; i++) 14065 lun->pending_ua[i] &= ~CTL_UA_THIN_PROV_THRES; 14066 } 14067 mtx_unlock(&lun->lun_lock); 14068 } 14069 mtx_unlock(&softc->ctl_lock); 14070 pause("-", CTL_LBP_PERIOD * hz); 14071 } 14072} 14073 14074static void 14075ctl_enqueue_incoming(union ctl_io *io) 14076{ 14077 struct ctl_softc *softc = control_softc; 14078 struct ctl_thread *thr; 14079 u_int idx; 14080 14081 idx = (io->io_hdr.nexus.targ_port * 127 + 14082 io->io_hdr.nexus.initid.id) % worker_threads; 14083 thr = &softc->threads[idx]; 14084 mtx_lock(&thr->queue_lock); 14085 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 14086 mtx_unlock(&thr->queue_lock); 14087 wakeup(thr); 14088} 14089 14090static void 14091ctl_enqueue_rtr(union ctl_io *io) 14092{ 14093 struct ctl_softc *softc = control_softc; 14094 struct ctl_thread *thr; 14095 14096 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14097 mtx_lock(&thr->queue_lock); 14098 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 14099 mtx_unlock(&thr->queue_lock); 14100 wakeup(thr); 14101} 14102 14103static void 14104ctl_enqueue_done(union ctl_io *io) 14105{ 14106 struct ctl_softc *softc = control_softc; 14107 struct ctl_thread *thr; 14108 14109 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14110 mtx_lock(&thr->queue_lock); 14111 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 14112 mtx_unlock(&thr->queue_lock); 14113 wakeup(thr); 14114} 14115 14116static void 14117ctl_enqueue_isc(union ctl_io *io) 14118{ 14119 struct ctl_softc *softc = control_softc; 14120 struct ctl_thread *thr; 14121 14122 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14123 mtx_lock(&thr->queue_lock); 14124 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 14125 mtx_unlock(&thr->queue_lock); 14126 wakeup(thr); 14127} 14128 14129/* Initialization and failover */ 14130 14131void 14132ctl_init_isc_msg(void) 14133{ 14134 printf("CTL: Still calling this thing\n"); 14135} 14136 14137/* 14138 * Init component 14139 * Initializes component into configuration defined by bootMode 14140 * (see hasc-sv.c) 14141 * returns hasc_Status: 14142 * OK 14143 * ERROR - fatal error 14144 */ 14145static ctl_ha_comp_status 14146ctl_isc_init(struct ctl_ha_component *c) 14147{ 14148 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14149 14150 c->status = ret; 14151 return ret; 14152} 14153 14154/* Start component 14155 * Starts component in state requested. If component starts successfully, 14156 * it must set its own state to the requestrd state 14157 * When requested state is HASC_STATE_HA, the component may refine it 14158 * by adding _SLAVE or _MASTER flags. 14159 * Currently allowed state transitions are: 14160 * UNKNOWN->HA - initial startup 14161 * UNKNOWN->SINGLE - initial startup when no parter detected 14162 * HA->SINGLE - failover 14163 * returns ctl_ha_comp_status: 14164 * OK - component successfully started in requested state 14165 * FAILED - could not start the requested state, failover may 14166 * be possible 14167 * ERROR - fatal error detected, no future startup possible 14168 */ 14169static ctl_ha_comp_status 14170ctl_isc_start(struct ctl_ha_component *c, ctl_ha_state state) 14171{ 14172 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14173 14174 printf("%s: go\n", __func__); 14175 14176 // UNKNOWN->HA or UNKNOWN->SINGLE (bootstrap) 14177 if (c->state == CTL_HA_STATE_UNKNOWN ) { 14178 control_softc->is_single = 0; 14179 if (ctl_ha_msg_create(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 14180 != CTL_HA_STATUS_SUCCESS) { 14181 printf("ctl_isc_start: ctl_ha_msg_create failed.\n"); 14182 ret = CTL_HA_COMP_STATUS_ERROR; 14183 } 14184 } else if (CTL_HA_STATE_IS_HA(c->state) 14185 && CTL_HA_STATE_IS_SINGLE(state)){ 14186 // HA->SINGLE transition 14187 ctl_failover(); 14188 control_softc->is_single = 1; 14189 } else { 14190 printf("ctl_isc_start:Invalid state transition %X->%X\n", 14191 c->state, state); 14192 ret = CTL_HA_COMP_STATUS_ERROR; 14193 } 14194 if (CTL_HA_STATE_IS_SINGLE(state)) 14195 control_softc->is_single = 1; 14196 14197 c->state = state; 14198 c->status = ret; 14199 return ret; 14200} 14201 14202/* 14203 * Quiesce component 14204 * The component must clear any error conditions (set status to OK) and 14205 * prepare itself to another Start call 14206 * returns ctl_ha_comp_status: 14207 * OK 14208 * ERROR 14209 */ 14210static ctl_ha_comp_status 14211ctl_isc_quiesce(struct ctl_ha_component *c) 14212{ 14213 int ret = CTL_HA_COMP_STATUS_OK; 14214 14215 ctl_pause_rtr = 1; 14216 c->status = ret; 14217 return ret; 14218} 14219 14220struct ctl_ha_component ctl_ha_component_ctlisc = 14221{ 14222 .name = "CTL ISC", 14223 .state = CTL_HA_STATE_UNKNOWN, 14224 .init = ctl_isc_init, 14225 .start = ctl_isc_start, 14226 .quiesce = ctl_isc_quiesce 14227}; 14228 14229/* 14230 * vim: ts=8 14231 */ 14232