ctl.c revision 275884
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: stable/10/sys/cam/ctl/ctl.c 275884 2014-12-18 08:27:46Z 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; 364TUNABLE_INT("kern.cam.ctl.worker_threads", &worker_threads); 365SYSCTL_INT(_kern_cam_ctl, OID_AUTO, worker_threads, CTLFLAG_RDTUN, 366 &worker_threads, 1, "Number of worker threads"); 367static int ctl_debug = CTL_DEBUG_NONE; 368TUNABLE_INT("kern.cam.ctl.debug", &ctl_debug); 369SYSCTL_INT(_kern_cam_ctl, OID_AUTO, debug, CTLFLAG_RWTUN, 370 &ctl_debug, 0, "Enabled debug flags"); 371 372/* 373 * Supported pages (0x00), Serial number (0x80), Device ID (0x83), 374 * Extended INQUIRY Data (0x86), Mode Page Policy (0x87), 375 * SCSI Ports (0x88), Third-party Copy (0x8F), Block limits (0xB0), 376 * Block Device Characteristics (0xB1) and Logical Block Provisioning (0xB2) 377 */ 378#define SCSI_EVPD_NUM_SUPPORTED_PAGES 10 379 380static void ctl_isc_event_handler(ctl_ha_channel chanel, ctl_ha_event event, 381 int param); 382static void ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest); 383static int ctl_init(void); 384void ctl_shutdown(void); 385static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td); 386static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td); 387static void ctl_ioctl_online(void *arg); 388static void ctl_ioctl_offline(void *arg); 389static int ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id); 390static int ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id); 391static int ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio); 392static int ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio); 393static int ctl_ioctl_submit_wait(union ctl_io *io); 394static void ctl_ioctl_datamove(union ctl_io *io); 395static void ctl_ioctl_done(union ctl_io *io); 396static void ctl_ioctl_hard_startstop_callback(void *arg, 397 struct cfi_metatask *metatask); 398static void ctl_ioctl_bbrread_callback(void *arg,struct cfi_metatask *metatask); 399static int ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 400 struct ctl_ooa *ooa_hdr, 401 struct ctl_ooa_entry *kern_entries); 402static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 403 struct thread *td); 404static uint32_t ctl_map_lun(int port_num, uint32_t lun); 405static uint32_t ctl_map_lun_back(int port_num, uint32_t lun); 406#ifdef unused 407static union ctl_io *ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, 408 uint32_t targ_target, uint32_t targ_lun, 409 int can_wait); 410static void ctl_kfree_io(union ctl_io *io); 411#endif /* unused */ 412static int ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 413 struct ctl_be_lun *be_lun, struct ctl_id target_id); 414static int ctl_free_lun(struct ctl_lun *lun); 415static void ctl_create_lun(struct ctl_be_lun *be_lun); 416/** 417static void ctl_failover_change_pages(struct ctl_softc *softc, 418 struct ctl_scsiio *ctsio, int master); 419**/ 420 421static int ctl_do_mode_select(union ctl_io *io); 422static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, 423 uint64_t res_key, uint64_t sa_res_key, 424 uint8_t type, uint32_t residx, 425 struct ctl_scsiio *ctsio, 426 struct scsi_per_res_out *cdb, 427 struct scsi_per_res_out_parms* param); 428static void ctl_pro_preempt_other(struct ctl_lun *lun, 429 union ctl_ha_msg *msg); 430static void ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg); 431static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 432static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 433static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 434static int ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len); 435static int ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len); 436static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, 437 int alloc_len); 438static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 439 int alloc_len); 440static int ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len); 441static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 442static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 443static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 444static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len); 445static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2); 446static ctl_action ctl_check_for_blockage(struct ctl_lun *lun, 447 union ctl_io *pending_io, union ctl_io *ooa_io); 448static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 449 union ctl_io *starting_io); 450static int ctl_check_blocked(struct ctl_lun *lun); 451static int ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, 452 struct ctl_lun *lun, 453 const struct ctl_cmd_entry *entry, 454 struct ctl_scsiio *ctsio); 455//static int ctl_check_rtr(union ctl_io *pending_io, struct ctl_softc *softc); 456static void ctl_failover(void); 457static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 458 struct ctl_scsiio *ctsio); 459static int ctl_scsiio(struct ctl_scsiio *ctsio); 460 461static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 462static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 463 ctl_ua_type ua_type); 464static int ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, 465 ctl_ua_type ua_type); 466static int ctl_abort_task(union ctl_io *io); 467static int ctl_abort_task_set(union ctl_io *io); 468static int ctl_i_t_nexus_reset(union ctl_io *io); 469static void ctl_run_task(union ctl_io *io); 470#ifdef CTL_IO_DELAY 471static void ctl_datamove_timer_wakeup(void *arg); 472static void ctl_done_timer_wakeup(void *arg); 473#endif /* CTL_IO_DELAY */ 474 475static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 476static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 477static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 478static void ctl_datamove_remote_write(union ctl_io *io); 479static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 480static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 481static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 482static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 483 ctl_ha_dt_cb callback); 484static void ctl_datamove_remote_read(union ctl_io *io); 485static void ctl_datamove_remote(union ctl_io *io); 486static int ctl_process_done(union ctl_io *io); 487static void ctl_lun_thread(void *arg); 488static void ctl_thresh_thread(void *arg); 489static void ctl_work_thread(void *arg); 490static void ctl_enqueue_incoming(union ctl_io *io); 491static void ctl_enqueue_rtr(union ctl_io *io); 492static void ctl_enqueue_done(union ctl_io *io); 493static void ctl_enqueue_isc(union ctl_io *io); 494static const struct ctl_cmd_entry * 495 ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa); 496static const struct ctl_cmd_entry * 497 ctl_validate_command(struct ctl_scsiio *ctsio); 498static int ctl_cmd_applicable(uint8_t lun_type, 499 const struct ctl_cmd_entry *entry); 500 501/* 502 * Load the serialization table. This isn't very pretty, but is probably 503 * the easiest way to do it. 504 */ 505#include "ctl_ser_table.c" 506 507/* 508 * We only need to define open, close and ioctl routines for this driver. 509 */ 510static struct cdevsw ctl_cdevsw = { 511 .d_version = D_VERSION, 512 .d_flags = 0, 513 .d_open = ctl_open, 514 .d_close = ctl_close, 515 .d_ioctl = ctl_ioctl, 516 .d_name = "ctl", 517}; 518 519 520MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 521MALLOC_DEFINE(M_CTLIO, "ctlio", "Memory used for CTL requests"); 522 523static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 524 525static moduledata_t ctl_moduledata = { 526 "ctl", 527 ctl_module_event_handler, 528 NULL 529}; 530 531DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 532MODULE_VERSION(ctl, 1); 533 534static struct ctl_frontend ioctl_frontend = 535{ 536 .name = "ioctl", 537}; 538 539static void 540ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 541 union ctl_ha_msg *msg_info) 542{ 543 struct ctl_scsiio *ctsio; 544 545 if (msg_info->hdr.original_sc == NULL) { 546 printf("%s: original_sc == NULL!\n", __func__); 547 /* XXX KDM now what? */ 548 return; 549 } 550 551 ctsio = &msg_info->hdr.original_sc->scsiio; 552 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 553 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 554 ctsio->io_hdr.status = msg_info->hdr.status; 555 ctsio->scsi_status = msg_info->scsi.scsi_status; 556 ctsio->sense_len = msg_info->scsi.sense_len; 557 ctsio->sense_residual = msg_info->scsi.sense_residual; 558 ctsio->residual = msg_info->scsi.residual; 559 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 560 sizeof(ctsio->sense_data)); 561 memcpy(&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 562 &msg_info->scsi.lbalen, sizeof(msg_info->scsi.lbalen)); 563 ctl_enqueue_isc((union ctl_io *)ctsio); 564} 565 566static void 567ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 568 union ctl_ha_msg *msg_info) 569{ 570 struct ctl_scsiio *ctsio; 571 572 if (msg_info->hdr.serializing_sc == NULL) { 573 printf("%s: serializing_sc == NULL!\n", __func__); 574 /* XXX KDM now what? */ 575 return; 576 } 577 578 ctsio = &msg_info->hdr.serializing_sc->scsiio; 579#if 0 580 /* 581 * Attempt to catch the situation where an I/O has 582 * been freed, and we're using it again. 583 */ 584 if (ctsio->io_hdr.io_type == 0xff) { 585 union ctl_io *tmp_io; 586 tmp_io = (union ctl_io *)ctsio; 587 printf("%s: %p use after free!\n", __func__, 588 ctsio); 589 printf("%s: type %d msg %d cdb %x iptl: " 590 "%d:%d:%d:%d tag 0x%04x " 591 "flag %#x status %x\n", 592 __func__, 593 tmp_io->io_hdr.io_type, 594 tmp_io->io_hdr.msg_type, 595 tmp_io->scsiio.cdb[0], 596 tmp_io->io_hdr.nexus.initid.id, 597 tmp_io->io_hdr.nexus.targ_port, 598 tmp_io->io_hdr.nexus.targ_target.id, 599 tmp_io->io_hdr.nexus.targ_lun, 600 (tmp_io->io_hdr.io_type == 601 CTL_IO_TASK) ? 602 tmp_io->taskio.tag_num : 603 tmp_io->scsiio.tag_num, 604 tmp_io->io_hdr.flags, 605 tmp_io->io_hdr.status); 606 } 607#endif 608 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 609 ctl_enqueue_isc((union ctl_io *)ctsio); 610} 611 612/* 613 * ISC (Inter Shelf Communication) event handler. Events from the HA 614 * subsystem come in here. 615 */ 616static void 617ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 618{ 619 struct ctl_softc *ctl_softc; 620 union ctl_io *io; 621 struct ctl_prio *presio; 622 ctl_ha_status isc_status; 623 624 ctl_softc = control_softc; 625 io = NULL; 626 627 628#if 0 629 printf("CTL: Isc Msg event %d\n", event); 630#endif 631 if (event == CTL_HA_EVT_MSG_RECV) { 632 union ctl_ha_msg msg_info; 633 634 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 635 sizeof(msg_info), /*wait*/ 0); 636#if 0 637 printf("CTL: msg_type %d\n", msg_info.msg_type); 638#endif 639 if (isc_status != 0) { 640 printf("Error receiving message, status = %d\n", 641 isc_status); 642 return; 643 } 644 645 switch (msg_info.hdr.msg_type) { 646 case CTL_MSG_SERIALIZE: 647#if 0 648 printf("Serialize\n"); 649#endif 650 io = ctl_alloc_io_nowait(ctl_softc->othersc_pool); 651 if (io == NULL) { 652 printf("ctl_isc_event_handler: can't allocate " 653 "ctl_io!\n"); 654 /* Bad Juju */ 655 /* Need to set busy and send msg back */ 656 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 657 msg_info.hdr.status = CTL_SCSI_ERROR; 658 msg_info.scsi.scsi_status = SCSI_STATUS_BUSY; 659 msg_info.scsi.sense_len = 0; 660 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 661 sizeof(msg_info), 0) > CTL_HA_STATUS_SUCCESS){ 662 } 663 goto bailout; 664 } 665 ctl_zero_io(io); 666 // populate ctsio from msg_info 667 io->io_hdr.io_type = CTL_IO_SCSI; 668 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 669 io->io_hdr.original_sc = msg_info.hdr.original_sc; 670#if 0 671 printf("pOrig %x\n", (int)msg_info.original_sc); 672#endif 673 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 674 CTL_FLAG_IO_ACTIVE; 675 /* 676 * If we're in serialization-only mode, we don't 677 * want to go through full done processing. Thus 678 * the COPY flag. 679 * 680 * XXX KDM add another flag that is more specific. 681 */ 682 if (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY) 683 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 684 io->io_hdr.nexus = msg_info.hdr.nexus; 685#if 0 686 printf("targ %d, port %d, iid %d, lun %d\n", 687 io->io_hdr.nexus.targ_target.id, 688 io->io_hdr.nexus.targ_port, 689 io->io_hdr.nexus.initid.id, 690 io->io_hdr.nexus.targ_lun); 691#endif 692 io->scsiio.tag_num = msg_info.scsi.tag_num; 693 io->scsiio.tag_type = msg_info.scsi.tag_type; 694 memcpy(io->scsiio.cdb, msg_info.scsi.cdb, 695 CTL_MAX_CDBLEN); 696 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 697 const struct ctl_cmd_entry *entry; 698 699 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 700 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 701 io->io_hdr.flags |= 702 entry->flags & CTL_FLAG_DATA_MASK; 703 } 704 ctl_enqueue_isc(io); 705 break; 706 707 /* Performed on the Originating SC, XFER mode only */ 708 case CTL_MSG_DATAMOVE: { 709 struct ctl_sg_entry *sgl; 710 int i, j; 711 712 io = msg_info.hdr.original_sc; 713 if (io == NULL) { 714 printf("%s: original_sc == NULL!\n", __func__); 715 /* XXX KDM do something here */ 716 break; 717 } 718 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 719 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 720 /* 721 * Keep track of this, we need to send it back over 722 * when the datamove is complete. 723 */ 724 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 725 726 if (msg_info.dt.sg_sequence == 0) { 727 /* 728 * XXX KDM we use the preallocated S/G list 729 * here, but we'll need to change this to 730 * dynamic allocation if we need larger S/G 731 * lists. 732 */ 733 if (msg_info.dt.kern_sg_entries > 734 sizeof(io->io_hdr.remote_sglist) / 735 sizeof(io->io_hdr.remote_sglist[0])) { 736 printf("%s: number of S/G entries " 737 "needed %u > allocated num %zd\n", 738 __func__, 739 msg_info.dt.kern_sg_entries, 740 sizeof(io->io_hdr.remote_sglist)/ 741 sizeof(io->io_hdr.remote_sglist[0])); 742 743 /* 744 * XXX KDM send a message back to 745 * the other side to shut down the 746 * DMA. The error will come back 747 * through via the normal channel. 748 */ 749 break; 750 } 751 sgl = io->io_hdr.remote_sglist; 752 memset(sgl, 0, 753 sizeof(io->io_hdr.remote_sglist)); 754 755 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 756 757 io->scsiio.kern_sg_entries = 758 msg_info.dt.kern_sg_entries; 759 io->scsiio.rem_sg_entries = 760 msg_info.dt.kern_sg_entries; 761 io->scsiio.kern_data_len = 762 msg_info.dt.kern_data_len; 763 io->scsiio.kern_total_len = 764 msg_info.dt.kern_total_len; 765 io->scsiio.kern_data_resid = 766 msg_info.dt.kern_data_resid; 767 io->scsiio.kern_rel_offset = 768 msg_info.dt.kern_rel_offset; 769 /* 770 * Clear out per-DMA flags. 771 */ 772 io->io_hdr.flags &= ~CTL_FLAG_RDMA_MASK; 773 /* 774 * Add per-DMA flags that are set for this 775 * particular DMA request. 776 */ 777 io->io_hdr.flags |= msg_info.dt.flags & 778 CTL_FLAG_RDMA_MASK; 779 } else 780 sgl = (struct ctl_sg_entry *) 781 io->scsiio.kern_data_ptr; 782 783 for (i = msg_info.dt.sent_sg_entries, j = 0; 784 i < (msg_info.dt.sent_sg_entries + 785 msg_info.dt.cur_sg_entries); i++, j++) { 786 sgl[i].addr = msg_info.dt.sg_list[j].addr; 787 sgl[i].len = msg_info.dt.sg_list[j].len; 788 789#if 0 790 printf("%s: L: %p,%d -> %p,%d j=%d, i=%d\n", 791 __func__, 792 msg_info.dt.sg_list[j].addr, 793 msg_info.dt.sg_list[j].len, 794 sgl[i].addr, sgl[i].len, j, i); 795#endif 796 } 797#if 0 798 memcpy(&sgl[msg_info.dt.sent_sg_entries], 799 msg_info.dt.sg_list, 800 sizeof(*sgl) * msg_info.dt.cur_sg_entries); 801#endif 802 803 /* 804 * If this is the last piece of the I/O, we've got 805 * the full S/G list. Queue processing in the thread. 806 * Otherwise wait for the next piece. 807 */ 808 if (msg_info.dt.sg_last != 0) 809 ctl_enqueue_isc(io); 810 break; 811 } 812 /* Performed on the Serializing (primary) SC, XFER mode only */ 813 case CTL_MSG_DATAMOVE_DONE: { 814 if (msg_info.hdr.serializing_sc == NULL) { 815 printf("%s: serializing_sc == NULL!\n", 816 __func__); 817 /* XXX KDM now what? */ 818 break; 819 } 820 /* 821 * We grab the sense information here in case 822 * there was a failure, so we can return status 823 * back to the initiator. 824 */ 825 io = msg_info.hdr.serializing_sc; 826 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 827 io->io_hdr.status = msg_info.hdr.status; 828 io->scsiio.scsi_status = msg_info.scsi.scsi_status; 829 io->scsiio.sense_len = msg_info.scsi.sense_len; 830 io->scsiio.sense_residual =msg_info.scsi.sense_residual; 831 io->io_hdr.port_status = msg_info.scsi.fetd_status; 832 io->scsiio.residual = msg_info.scsi.residual; 833 memcpy(&io->scsiio.sense_data,&msg_info.scsi.sense_data, 834 sizeof(io->scsiio.sense_data)); 835 ctl_enqueue_isc(io); 836 break; 837 } 838 839 /* Preformed on Originating SC, SER_ONLY mode */ 840 case CTL_MSG_R2R: 841 io = msg_info.hdr.original_sc; 842 if (io == NULL) { 843 printf("%s: Major Bummer\n", __func__); 844 return; 845 } else { 846#if 0 847 printf("pOrig %x\n",(int) ctsio); 848#endif 849 } 850 io->io_hdr.msg_type = CTL_MSG_R2R; 851 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 852 ctl_enqueue_isc(io); 853 break; 854 855 /* 856 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 857 * mode. 858 * Performed on the Originating (i.e. secondary) SC in XFER 859 * mode 860 */ 861 case CTL_MSG_FINISH_IO: 862 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) 863 ctl_isc_handler_finish_xfer(ctl_softc, 864 &msg_info); 865 else 866 ctl_isc_handler_finish_ser_only(ctl_softc, 867 &msg_info); 868 break; 869 870 /* Preformed on Originating SC */ 871 case CTL_MSG_BAD_JUJU: 872 io = msg_info.hdr.original_sc; 873 if (io == NULL) { 874 printf("%s: Bad JUJU!, original_sc is NULL!\n", 875 __func__); 876 break; 877 } 878 ctl_copy_sense_data(&msg_info, io); 879 /* 880 * IO should have already been cleaned up on other 881 * SC so clear this flag so we won't send a message 882 * back to finish the IO there. 883 */ 884 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 885 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 886 887 /* io = msg_info.hdr.serializing_sc; */ 888 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 889 ctl_enqueue_isc(io); 890 break; 891 892 /* Handle resets sent from the other side */ 893 case CTL_MSG_MANAGE_TASKS: { 894 struct ctl_taskio *taskio; 895 taskio = (struct ctl_taskio *)ctl_alloc_io_nowait( 896 ctl_softc->othersc_pool); 897 if (taskio == NULL) { 898 printf("ctl_isc_event_handler: can't allocate " 899 "ctl_io!\n"); 900 /* Bad Juju */ 901 /* should I just call the proper reset func 902 here??? */ 903 goto bailout; 904 } 905 ctl_zero_io((union ctl_io *)taskio); 906 taskio->io_hdr.io_type = CTL_IO_TASK; 907 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 908 taskio->io_hdr.nexus = msg_info.hdr.nexus; 909 taskio->task_action = msg_info.task.task_action; 910 taskio->tag_num = msg_info.task.tag_num; 911 taskio->tag_type = msg_info.task.tag_type; 912#ifdef CTL_TIME_IO 913 taskio->io_hdr.start_time = time_uptime; 914 getbintime(&taskio->io_hdr.start_bt); 915#if 0 916 cs_prof_gettime(&taskio->io_hdr.start_ticks); 917#endif 918#endif /* CTL_TIME_IO */ 919 ctl_run_task((union ctl_io *)taskio); 920 break; 921 } 922 /* Persistent Reserve action which needs attention */ 923 case CTL_MSG_PERS_ACTION: 924 presio = (struct ctl_prio *)ctl_alloc_io_nowait( 925 ctl_softc->othersc_pool); 926 if (presio == NULL) { 927 printf("ctl_isc_event_handler: can't allocate " 928 "ctl_io!\n"); 929 /* Bad Juju */ 930 /* Need to set busy and send msg back */ 931 goto bailout; 932 } 933 ctl_zero_io((union ctl_io *)presio); 934 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 935 presio->pr_msg = msg_info.pr; 936 ctl_enqueue_isc((union ctl_io *)presio); 937 break; 938 case CTL_MSG_SYNC_FE: 939 rcv_sync_msg = 1; 940 break; 941 default: 942 printf("How did I get here?\n"); 943 } 944 } else if (event == CTL_HA_EVT_MSG_SENT) { 945 if (param != CTL_HA_STATUS_SUCCESS) { 946 printf("Bad status from ctl_ha_msg_send status %d\n", 947 param); 948 } 949 return; 950 } else if (event == CTL_HA_EVT_DISCONNECT) { 951 printf("CTL: Got a disconnect from Isc\n"); 952 return; 953 } else { 954 printf("ctl_isc_event_handler: Unknown event %d\n", event); 955 return; 956 } 957 958bailout: 959 return; 960} 961 962static void 963ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 964{ 965 struct scsi_sense_data *sense; 966 967 sense = &dest->scsiio.sense_data; 968 bcopy(&src->scsi.sense_data, sense, sizeof(*sense)); 969 dest->scsiio.scsi_status = src->scsi.scsi_status; 970 dest->scsiio.sense_len = src->scsi.sense_len; 971 dest->io_hdr.status = src->hdr.status; 972} 973 974static int 975ctl_ha_state_sysctl(SYSCTL_HANDLER_ARGS) 976{ 977 struct ctl_softc *softc = (struct ctl_softc *)arg1; 978 struct ctl_lun *lun; 979 int error, value, i; 980 981 if (softc->flags & CTL_FLAG_ACTIVE_SHELF) 982 value = 0; 983 else 984 value = 1; 985 986 error = sysctl_handle_int(oidp, &value, 0, req); 987 if ((error != 0) || (req->newptr == NULL)) 988 return (error); 989 990 mtx_lock(&softc->ctl_lock); 991 if (value == 0) 992 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 993 else 994 softc->flags &= ~CTL_FLAG_ACTIVE_SHELF; 995 STAILQ_FOREACH(lun, &softc->lun_list, links) { 996 mtx_lock(&lun->lun_lock); 997 for (i = 0; i < CTL_MAX_INITIATORS; i++) 998 lun->pending_ua[i] |= CTL_UA_ASYM_ACC_CHANGE; 999 mtx_unlock(&lun->lun_lock); 1000 } 1001 mtx_unlock(&softc->ctl_lock); 1002 return (0); 1003} 1004 1005static int 1006ctl_init(void) 1007{ 1008 struct ctl_softc *softc; 1009 void *other_pool; 1010 struct ctl_port *port; 1011 int i, error, retval; 1012 //int isc_retval; 1013 1014 retval = 0; 1015 ctl_pause_rtr = 0; 1016 rcv_sync_msg = 0; 1017 1018 control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 1019 M_WAITOK | M_ZERO); 1020 softc = control_softc; 1021 1022 softc->dev = make_dev(&ctl_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, 1023 "cam/ctl"); 1024 1025 softc->dev->si_drv1 = softc; 1026 1027 /* 1028 * By default, return a "bad LUN" peripheral qualifier for unknown 1029 * LUNs. The user can override this default using the tunable or 1030 * sysctl. See the comment in ctl_inquiry_std() for more details. 1031 */ 1032 softc->inquiry_pq_no_lun = 1; 1033 TUNABLE_INT_FETCH("kern.cam.ctl.inquiry_pq_no_lun", 1034 &softc->inquiry_pq_no_lun); 1035 sysctl_ctx_init(&softc->sysctl_ctx); 1036 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1037 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 1038 CTLFLAG_RD, 0, "CAM Target Layer"); 1039 1040 if (softc->sysctl_tree == NULL) { 1041 printf("%s: unable to allocate sysctl tree\n", __func__); 1042 destroy_dev(softc->dev); 1043 free(control_softc, M_DEVBUF); 1044 control_softc = NULL; 1045 return (ENOMEM); 1046 } 1047 1048 SYSCTL_ADD_INT(&softc->sysctl_ctx, 1049 SYSCTL_CHILDREN(softc->sysctl_tree), OID_AUTO, 1050 "inquiry_pq_no_lun", CTLFLAG_RW, 1051 &softc->inquiry_pq_no_lun, 0, 1052 "Report no lun possible for invalid LUNs"); 1053 1054 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 1055 softc->io_zone = uma_zcreate("CTL IO", sizeof(union ctl_io), 1056 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); 1057 softc->open_count = 0; 1058 1059 /* 1060 * Default to actually sending a SYNCHRONIZE CACHE command down to 1061 * the drive. 1062 */ 1063 softc->flags = CTL_FLAG_REAL_SYNC; 1064 1065 /* 1066 * In Copan's HA scheme, the "master" and "slave" roles are 1067 * figured out through the slot the controller is in. Although it 1068 * is an active/active system, someone has to be in charge. 1069 */ 1070 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1071 OID_AUTO, "ha_id", CTLFLAG_RDTUN, &softc->ha_id, 0, 1072 "HA head ID (0 - no HA)"); 1073 if (softc->ha_id == 0) { 1074 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1075 softc->is_single = 1; 1076 softc->port_offset = 0; 1077 } else 1078 softc->port_offset = (softc->ha_id - 1) * CTL_MAX_PORTS; 1079 persis_offset = softc->port_offset * CTL_MAX_INIT_PER_PORT; 1080 1081 /* 1082 * XXX KDM need to figure out where we want to get our target ID 1083 * and WWID. Is it different on each port? 1084 */ 1085 softc->target.id = 0; 1086 softc->target.wwid[0] = 0x12345678; 1087 softc->target.wwid[1] = 0x87654321; 1088 STAILQ_INIT(&softc->lun_list); 1089 STAILQ_INIT(&softc->pending_lun_queue); 1090 STAILQ_INIT(&softc->fe_list); 1091 STAILQ_INIT(&softc->port_list); 1092 STAILQ_INIT(&softc->be_list); 1093 ctl_tpc_init(softc); 1094 1095 if (ctl_pool_create(softc, "othersc", CTL_POOL_ENTRIES_OTHER_SC, 1096 &other_pool) != 0) 1097 { 1098 printf("ctl: can't allocate %d entry other SC pool, " 1099 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1100 return (ENOMEM); 1101 } 1102 softc->othersc_pool = other_pool; 1103 1104 if (worker_threads <= 0) 1105 worker_threads = max(1, mp_ncpus / 4); 1106 if (worker_threads > CTL_MAX_THREADS) 1107 worker_threads = CTL_MAX_THREADS; 1108 1109 for (i = 0; i < worker_threads; i++) { 1110 struct ctl_thread *thr = &softc->threads[i]; 1111 1112 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1113 thr->ctl_softc = softc; 1114 STAILQ_INIT(&thr->incoming_queue); 1115 STAILQ_INIT(&thr->rtr_queue); 1116 STAILQ_INIT(&thr->done_queue); 1117 STAILQ_INIT(&thr->isc_queue); 1118 1119 error = kproc_kthread_add(ctl_work_thread, thr, 1120 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1121 if (error != 0) { 1122 printf("error creating CTL work thread!\n"); 1123 ctl_pool_free(other_pool); 1124 return (error); 1125 } 1126 } 1127 error = kproc_kthread_add(ctl_lun_thread, softc, 1128 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1129 if (error != 0) { 1130 printf("error creating CTL lun thread!\n"); 1131 ctl_pool_free(other_pool); 1132 return (error); 1133 } 1134 error = kproc_kthread_add(ctl_thresh_thread, softc, 1135 &softc->ctl_proc, NULL, 0, 0, "ctl", "thresh"); 1136 if (error != 0) { 1137 printf("error creating CTL threshold thread!\n"); 1138 ctl_pool_free(other_pool); 1139 return (error); 1140 } 1141 if (bootverbose) 1142 printf("ctl: CAM Target Layer loaded\n"); 1143 1144 /* 1145 * Initialize the ioctl front end. 1146 */ 1147 ctl_frontend_register(&ioctl_frontend); 1148 port = &softc->ioctl_info.port; 1149 port->frontend = &ioctl_frontend; 1150 sprintf(softc->ioctl_info.port_name, "ioctl"); 1151 port->port_type = CTL_PORT_IOCTL; 1152 port->num_requested_ctl_io = 100; 1153 port->port_name = softc->ioctl_info.port_name; 1154 port->port_online = ctl_ioctl_online; 1155 port->port_offline = ctl_ioctl_offline; 1156 port->onoff_arg = &softc->ioctl_info; 1157 port->lun_enable = ctl_ioctl_lun_enable; 1158 port->lun_disable = ctl_ioctl_lun_disable; 1159 port->targ_lun_arg = &softc->ioctl_info; 1160 port->fe_datamove = ctl_ioctl_datamove; 1161 port->fe_done = ctl_ioctl_done; 1162 port->max_targets = 15; 1163 port->max_target_id = 15; 1164 1165 if (ctl_port_register(&softc->ioctl_info.port) != 0) { 1166 printf("ctl: ioctl front end registration failed, will " 1167 "continue anyway\n"); 1168 } 1169 1170 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1171 OID_AUTO, "ha_state", CTLTYPE_INT | CTLFLAG_RWTUN, 1172 softc, 0, ctl_ha_state_sysctl, "I", "HA state for this head"); 1173 1174#ifdef CTL_IO_DELAY 1175 if (sizeof(struct callout) > CTL_TIMER_BYTES) { 1176 printf("sizeof(struct callout) %zd > CTL_TIMER_BYTES %zd\n", 1177 sizeof(struct callout), CTL_TIMER_BYTES); 1178 return (EINVAL); 1179 } 1180#endif /* CTL_IO_DELAY */ 1181 1182 return (0); 1183} 1184 1185void 1186ctl_shutdown(void) 1187{ 1188 struct ctl_softc *softc; 1189 struct ctl_lun *lun, *next_lun; 1190 1191 softc = (struct ctl_softc *)control_softc; 1192 1193 if (ctl_port_deregister(&softc->ioctl_info.port) != 0) 1194 printf("ctl: ioctl front end deregistration failed\n"); 1195 1196 mtx_lock(&softc->ctl_lock); 1197 1198 /* 1199 * Free up each LUN. 1200 */ 1201 for (lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; lun = next_lun){ 1202 next_lun = STAILQ_NEXT(lun, links); 1203 ctl_free_lun(lun); 1204 } 1205 1206 mtx_unlock(&softc->ctl_lock); 1207 1208 ctl_frontend_deregister(&ioctl_frontend); 1209 1210#if 0 1211 ctl_shutdown_thread(softc->work_thread); 1212 mtx_destroy(&softc->queue_lock); 1213#endif 1214 1215 ctl_tpc_shutdown(softc); 1216 uma_zdestroy(softc->io_zone); 1217 mtx_destroy(&softc->ctl_lock); 1218 1219 destroy_dev(softc->dev); 1220 1221 sysctl_ctx_free(&softc->sysctl_ctx); 1222 1223 free(control_softc, M_DEVBUF); 1224 control_softc = NULL; 1225 1226 if (bootverbose) 1227 printf("ctl: CAM Target Layer unloaded\n"); 1228} 1229 1230static int 1231ctl_module_event_handler(module_t mod, int what, void *arg) 1232{ 1233 1234 switch (what) { 1235 case MOD_LOAD: 1236 return (ctl_init()); 1237 case MOD_UNLOAD: 1238 return (EBUSY); 1239 default: 1240 return (EOPNOTSUPP); 1241 } 1242} 1243 1244/* 1245 * XXX KDM should we do some access checks here? Bump a reference count to 1246 * prevent a CTL module from being unloaded while someone has it open? 1247 */ 1248static int 1249ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1250{ 1251 return (0); 1252} 1253 1254static int 1255ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1256{ 1257 return (0); 1258} 1259 1260int 1261ctl_port_enable(ctl_port_type port_type) 1262{ 1263 struct ctl_softc *softc = control_softc; 1264 struct ctl_port *port; 1265 1266 if (softc->is_single == 0) { 1267 union ctl_ha_msg msg_info; 1268 int isc_retval; 1269 1270#if 0 1271 printf("%s: HA mode, synchronizing frontend enable\n", 1272 __func__); 1273#endif 1274 msg_info.hdr.msg_type = CTL_MSG_SYNC_FE; 1275 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1276 sizeof(msg_info), 1 )) > CTL_HA_STATUS_SUCCESS) { 1277 printf("Sync msg send error retval %d\n", isc_retval); 1278 } 1279 if (!rcv_sync_msg) { 1280 isc_retval=ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 1281 sizeof(msg_info), 1); 1282 } 1283#if 0 1284 printf("CTL:Frontend Enable\n"); 1285 } else { 1286 printf("%s: single mode, skipping frontend synchronization\n", 1287 __func__); 1288#endif 1289 } 1290 1291 STAILQ_FOREACH(port, &softc->port_list, links) { 1292 if (port_type & port->port_type) 1293 { 1294#if 0 1295 printf("port %d\n", port->targ_port); 1296#endif 1297 ctl_port_online(port); 1298 } 1299 } 1300 1301 return (0); 1302} 1303 1304int 1305ctl_port_disable(ctl_port_type port_type) 1306{ 1307 struct ctl_softc *softc; 1308 struct ctl_port *port; 1309 1310 softc = control_softc; 1311 1312 STAILQ_FOREACH(port, &softc->port_list, links) { 1313 if (port_type & port->port_type) 1314 ctl_port_offline(port); 1315 } 1316 1317 return (0); 1318} 1319 1320/* 1321 * Returns 0 for success, 1 for failure. 1322 * Currently the only failure mode is if there aren't enough entries 1323 * allocated. So, in case of a failure, look at num_entries_dropped, 1324 * reallocate and try again. 1325 */ 1326int 1327ctl_port_list(struct ctl_port_entry *entries, int num_entries_alloced, 1328 int *num_entries_filled, int *num_entries_dropped, 1329 ctl_port_type port_type, int no_virtual) 1330{ 1331 struct ctl_softc *softc; 1332 struct ctl_port *port; 1333 int entries_dropped, entries_filled; 1334 int retval; 1335 int i; 1336 1337 softc = control_softc; 1338 1339 retval = 0; 1340 entries_filled = 0; 1341 entries_dropped = 0; 1342 1343 i = 0; 1344 mtx_lock(&softc->ctl_lock); 1345 STAILQ_FOREACH(port, &softc->port_list, links) { 1346 struct ctl_port_entry *entry; 1347 1348 if ((port->port_type & port_type) == 0) 1349 continue; 1350 1351 if ((no_virtual != 0) 1352 && (port->virtual_port != 0)) 1353 continue; 1354 1355 if (entries_filled >= num_entries_alloced) { 1356 entries_dropped++; 1357 continue; 1358 } 1359 entry = &entries[i]; 1360 1361 entry->port_type = port->port_type; 1362 strlcpy(entry->port_name, port->port_name, 1363 sizeof(entry->port_name)); 1364 entry->physical_port = port->physical_port; 1365 entry->virtual_port = port->virtual_port; 1366 entry->wwnn = port->wwnn; 1367 entry->wwpn = port->wwpn; 1368 1369 i++; 1370 entries_filled++; 1371 } 1372 1373 mtx_unlock(&softc->ctl_lock); 1374 1375 if (entries_dropped > 0) 1376 retval = 1; 1377 1378 *num_entries_dropped = entries_dropped; 1379 *num_entries_filled = entries_filled; 1380 1381 return (retval); 1382} 1383 1384static void 1385ctl_ioctl_online(void *arg) 1386{ 1387 struct ctl_ioctl_info *ioctl_info; 1388 1389 ioctl_info = (struct ctl_ioctl_info *)arg; 1390 1391 ioctl_info->flags |= CTL_IOCTL_FLAG_ENABLED; 1392} 1393 1394static void 1395ctl_ioctl_offline(void *arg) 1396{ 1397 struct ctl_ioctl_info *ioctl_info; 1398 1399 ioctl_info = (struct ctl_ioctl_info *)arg; 1400 1401 ioctl_info->flags &= ~CTL_IOCTL_FLAG_ENABLED; 1402} 1403 1404/* 1405 * Remove an initiator by port number and initiator ID. 1406 * Returns 0 for success, -1 for failure. 1407 */ 1408int 1409ctl_remove_initiator(struct ctl_port *port, int iid) 1410{ 1411 struct ctl_softc *softc = control_softc; 1412 1413 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1414 1415 if (iid > CTL_MAX_INIT_PER_PORT) { 1416 printf("%s: initiator ID %u > maximun %u!\n", 1417 __func__, iid, CTL_MAX_INIT_PER_PORT); 1418 return (-1); 1419 } 1420 1421 mtx_lock(&softc->ctl_lock); 1422 port->wwpn_iid[iid].in_use--; 1423 port->wwpn_iid[iid].last_use = time_uptime; 1424 mtx_unlock(&softc->ctl_lock); 1425 1426 return (0); 1427} 1428 1429/* 1430 * Add an initiator to the initiator map. 1431 * Returns iid for success, < 0 for failure. 1432 */ 1433int 1434ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 1435{ 1436 struct ctl_softc *softc = control_softc; 1437 time_t best_time; 1438 int i, best; 1439 1440 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1441 1442 if (iid >= CTL_MAX_INIT_PER_PORT) { 1443 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 1444 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 1445 free(name, M_CTL); 1446 return (-1); 1447 } 1448 1449 mtx_lock(&softc->ctl_lock); 1450 1451 if (iid < 0 && (wwpn != 0 || name != NULL)) { 1452 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1453 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 1454 iid = i; 1455 break; 1456 } 1457 if (name != NULL && port->wwpn_iid[i].name != NULL && 1458 strcmp(name, port->wwpn_iid[i].name) == 0) { 1459 iid = i; 1460 break; 1461 } 1462 } 1463 } 1464 1465 if (iid < 0) { 1466 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1467 if (port->wwpn_iid[i].in_use == 0 && 1468 port->wwpn_iid[i].wwpn == 0 && 1469 port->wwpn_iid[i].name == NULL) { 1470 iid = i; 1471 break; 1472 } 1473 } 1474 } 1475 1476 if (iid < 0) { 1477 best = -1; 1478 best_time = INT32_MAX; 1479 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1480 if (port->wwpn_iid[i].in_use == 0) { 1481 if (port->wwpn_iid[i].last_use < best_time) { 1482 best = i; 1483 best_time = port->wwpn_iid[i].last_use; 1484 } 1485 } 1486 } 1487 iid = best; 1488 } 1489 1490 if (iid < 0) { 1491 mtx_unlock(&softc->ctl_lock); 1492 free(name, M_CTL); 1493 return (-2); 1494 } 1495 1496 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 1497 /* 1498 * This is not an error yet. 1499 */ 1500 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 1501#if 0 1502 printf("%s: port %d iid %u WWPN %#jx arrived" 1503 " again\n", __func__, port->targ_port, 1504 iid, (uintmax_t)wwpn); 1505#endif 1506 goto take; 1507 } 1508 if (name != NULL && port->wwpn_iid[iid].name != NULL && 1509 strcmp(name, port->wwpn_iid[iid].name) == 0) { 1510#if 0 1511 printf("%s: port %d iid %u name '%s' arrived" 1512 " again\n", __func__, port->targ_port, 1513 iid, name); 1514#endif 1515 goto take; 1516 } 1517 1518 /* 1519 * This is an error, but what do we do about it? The 1520 * driver is telling us we have a new WWPN for this 1521 * initiator ID, so we pretty much need to use it. 1522 */ 1523 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 1524 " but WWPN %#jx '%s' is still at that address\n", 1525 __func__, port->targ_port, iid, wwpn, name, 1526 (uintmax_t)port->wwpn_iid[iid].wwpn, 1527 port->wwpn_iid[iid].name); 1528 1529 /* 1530 * XXX KDM clear have_ca and ua_pending on each LUN for 1531 * this initiator. 1532 */ 1533 } 1534take: 1535 free(port->wwpn_iid[iid].name, M_CTL); 1536 port->wwpn_iid[iid].name = name; 1537 port->wwpn_iid[iid].wwpn = wwpn; 1538 port->wwpn_iid[iid].in_use++; 1539 mtx_unlock(&softc->ctl_lock); 1540 1541 return (iid); 1542} 1543 1544static int 1545ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 1546{ 1547 int len; 1548 1549 switch (port->port_type) { 1550 case CTL_PORT_FC: 1551 { 1552 struct scsi_transportid_fcp *id = 1553 (struct scsi_transportid_fcp *)buf; 1554 if (port->wwpn_iid[iid].wwpn == 0) 1555 return (0); 1556 memset(id, 0, sizeof(*id)); 1557 id->format_protocol = SCSI_PROTO_FC; 1558 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 1559 return (sizeof(*id)); 1560 } 1561 case CTL_PORT_ISCSI: 1562 { 1563 struct scsi_transportid_iscsi_port *id = 1564 (struct scsi_transportid_iscsi_port *)buf; 1565 if (port->wwpn_iid[iid].name == NULL) 1566 return (0); 1567 memset(id, 0, 256); 1568 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 1569 SCSI_PROTO_ISCSI; 1570 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 1571 len = roundup2(min(len, 252), 4); 1572 scsi_ulto2b(len, id->additional_length); 1573 return (sizeof(*id) + len); 1574 } 1575 case CTL_PORT_SAS: 1576 { 1577 struct scsi_transportid_sas *id = 1578 (struct scsi_transportid_sas *)buf; 1579 if (port->wwpn_iid[iid].wwpn == 0) 1580 return (0); 1581 memset(id, 0, sizeof(*id)); 1582 id->format_protocol = SCSI_PROTO_SAS; 1583 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 1584 return (sizeof(*id)); 1585 } 1586 default: 1587 { 1588 struct scsi_transportid_spi *id = 1589 (struct scsi_transportid_spi *)buf; 1590 memset(id, 0, sizeof(*id)); 1591 id->format_protocol = SCSI_PROTO_SPI; 1592 scsi_ulto2b(iid, id->scsi_addr); 1593 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 1594 return (sizeof(*id)); 1595 } 1596 } 1597} 1598 1599static int 1600ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id) 1601{ 1602 return (0); 1603} 1604 1605static int 1606ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id) 1607{ 1608 return (0); 1609} 1610 1611/* 1612 * Data movement routine for the CTL ioctl frontend port. 1613 */ 1614static int 1615ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio) 1616{ 1617 struct ctl_sg_entry *ext_sglist, *kern_sglist; 1618 struct ctl_sg_entry ext_entry, kern_entry; 1619 int ext_sglen, ext_sg_entries, kern_sg_entries; 1620 int ext_sg_start, ext_offset; 1621 int len_to_copy, len_copied; 1622 int kern_watermark, ext_watermark; 1623 int ext_sglist_malloced; 1624 int i, j; 1625 1626 ext_sglist_malloced = 0; 1627 ext_sg_start = 0; 1628 ext_offset = 0; 1629 1630 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove\n")); 1631 1632 /* 1633 * If this flag is set, fake the data transfer. 1634 */ 1635 if (ctsio->io_hdr.flags & CTL_FLAG_NO_DATAMOVE) { 1636 ctsio->ext_data_filled = ctsio->ext_data_len; 1637 goto bailout; 1638 } 1639 1640 /* 1641 * To simplify things here, if we have a single buffer, stick it in 1642 * a S/G entry and just make it a single entry S/G list. 1643 */ 1644 if (ctsio->io_hdr.flags & CTL_FLAG_EDPTR_SGLIST) { 1645 int len_seen; 1646 1647 ext_sglen = ctsio->ext_sg_entries * sizeof(*ext_sglist); 1648 1649 ext_sglist = (struct ctl_sg_entry *)malloc(ext_sglen, M_CTL, 1650 M_WAITOK); 1651 ext_sglist_malloced = 1; 1652 if (copyin(ctsio->ext_data_ptr, ext_sglist, 1653 ext_sglen) != 0) { 1654 ctl_set_internal_failure(ctsio, 1655 /*sks_valid*/ 0, 1656 /*retry_count*/ 0); 1657 goto bailout; 1658 } 1659 ext_sg_entries = ctsio->ext_sg_entries; 1660 len_seen = 0; 1661 for (i = 0; i < ext_sg_entries; i++) { 1662 if ((len_seen + ext_sglist[i].len) >= 1663 ctsio->ext_data_filled) { 1664 ext_sg_start = i; 1665 ext_offset = ctsio->ext_data_filled - len_seen; 1666 break; 1667 } 1668 len_seen += ext_sglist[i].len; 1669 } 1670 } else { 1671 ext_sglist = &ext_entry; 1672 ext_sglist->addr = ctsio->ext_data_ptr; 1673 ext_sglist->len = ctsio->ext_data_len; 1674 ext_sg_entries = 1; 1675 ext_sg_start = 0; 1676 ext_offset = ctsio->ext_data_filled; 1677 } 1678 1679 if (ctsio->kern_sg_entries > 0) { 1680 kern_sglist = (struct ctl_sg_entry *)ctsio->kern_data_ptr; 1681 kern_sg_entries = ctsio->kern_sg_entries; 1682 } else { 1683 kern_sglist = &kern_entry; 1684 kern_sglist->addr = ctsio->kern_data_ptr; 1685 kern_sglist->len = ctsio->kern_data_len; 1686 kern_sg_entries = 1; 1687 } 1688 1689 1690 kern_watermark = 0; 1691 ext_watermark = ext_offset; 1692 len_copied = 0; 1693 for (i = ext_sg_start, j = 0; 1694 i < ext_sg_entries && j < kern_sg_entries;) { 1695 uint8_t *ext_ptr, *kern_ptr; 1696 1697 len_to_copy = ctl_min(ext_sglist[i].len - ext_watermark, 1698 kern_sglist[j].len - kern_watermark); 1699 1700 ext_ptr = (uint8_t *)ext_sglist[i].addr; 1701 ext_ptr = ext_ptr + ext_watermark; 1702 if (ctsio->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 1703 /* 1704 * XXX KDM fix this! 1705 */ 1706 panic("need to implement bus address support"); 1707#if 0 1708 kern_ptr = bus_to_virt(kern_sglist[j].addr); 1709#endif 1710 } else 1711 kern_ptr = (uint8_t *)kern_sglist[j].addr; 1712 kern_ptr = kern_ptr + kern_watermark; 1713 1714 kern_watermark += len_to_copy; 1715 ext_watermark += len_to_copy; 1716 1717 if ((ctsio->io_hdr.flags & CTL_FLAG_DATA_MASK) == 1718 CTL_FLAG_DATA_IN) { 1719 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1720 "bytes to user\n", len_to_copy)); 1721 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1722 "to %p\n", kern_ptr, ext_ptr)); 1723 if (copyout(kern_ptr, ext_ptr, len_to_copy) != 0) { 1724 ctl_set_internal_failure(ctsio, 1725 /*sks_valid*/ 0, 1726 /*retry_count*/ 0); 1727 goto bailout; 1728 } 1729 } else { 1730 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1731 "bytes from user\n", len_to_copy)); 1732 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1733 "to %p\n", ext_ptr, kern_ptr)); 1734 if (copyin(ext_ptr, kern_ptr, len_to_copy)!= 0){ 1735 ctl_set_internal_failure(ctsio, 1736 /*sks_valid*/ 0, 1737 /*retry_count*/0); 1738 goto bailout; 1739 } 1740 } 1741 1742 len_copied += len_to_copy; 1743 1744 if (ext_sglist[i].len == ext_watermark) { 1745 i++; 1746 ext_watermark = 0; 1747 } 1748 1749 if (kern_sglist[j].len == kern_watermark) { 1750 j++; 1751 kern_watermark = 0; 1752 } 1753 } 1754 1755 ctsio->ext_data_filled += len_copied; 1756 1757 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_sg_entries: %d, " 1758 "kern_sg_entries: %d\n", ext_sg_entries, 1759 kern_sg_entries)); 1760 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_data_len = %d, " 1761 "kern_data_len = %d\n", ctsio->ext_data_len, 1762 ctsio->kern_data_len)); 1763 1764 1765 /* XXX KDM set residual?? */ 1766bailout: 1767 1768 if (ext_sglist_malloced != 0) 1769 free(ext_sglist, M_CTL); 1770 1771 return (CTL_RETVAL_COMPLETE); 1772} 1773 1774/* 1775 * Serialize a command that went down the "wrong" side, and so was sent to 1776 * this controller for execution. The logic is a little different than the 1777 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 1778 * sent back to the other side, but in the success case, we execute the 1779 * command on this side (XFER mode) or tell the other side to execute it 1780 * (SER_ONLY mode). 1781 */ 1782static int 1783ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 1784{ 1785 struct ctl_softc *ctl_softc; 1786 union ctl_ha_msg msg_info; 1787 struct ctl_lun *lun; 1788 int retval = 0; 1789 uint32_t targ_lun; 1790 1791 ctl_softc = control_softc; 1792 1793 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 1794 lun = ctl_softc->ctl_luns[targ_lun]; 1795 if (lun==NULL) 1796 { 1797 /* 1798 * Why isn't LUN defined? The other side wouldn't 1799 * send a cmd if the LUN is undefined. 1800 */ 1801 printf("%s: Bad JUJU!, LUN is NULL!\n", __func__); 1802 1803 /* "Logical unit not supported" */ 1804 ctl_set_sense_data(&msg_info.scsi.sense_data, 1805 lun, 1806 /*sense_format*/SSD_TYPE_NONE, 1807 /*current_error*/ 1, 1808 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1809 /*asc*/ 0x25, 1810 /*ascq*/ 0x00, 1811 SSD_ELEM_NONE); 1812 1813 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1814 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1815 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1816 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1817 msg_info.hdr.serializing_sc = NULL; 1818 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1819 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1820 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1821 } 1822 return(1); 1823 1824 } 1825 1826 mtx_lock(&lun->lun_lock); 1827 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1828 1829 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 1830 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 1831 ooa_links))) { 1832 case CTL_ACTION_BLOCK: 1833 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 1834 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 1835 blocked_links); 1836 break; 1837 case CTL_ACTION_PASS: 1838 case CTL_ACTION_SKIP: 1839 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 1840 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 1841 ctl_enqueue_rtr((union ctl_io *)ctsio); 1842 } else { 1843 1844 /* send msg back to other side */ 1845 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1846 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 1847 msg_info.hdr.msg_type = CTL_MSG_R2R; 1848#if 0 1849 printf("2. pOrig %x\n", (int)msg_info.hdr.original_sc); 1850#endif 1851 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1852 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1853 } 1854 } 1855 break; 1856 case CTL_ACTION_OVERLAP: 1857 /* OVERLAPPED COMMANDS ATTEMPTED */ 1858 ctl_set_sense_data(&msg_info.scsi.sense_data, 1859 lun, 1860 /*sense_format*/SSD_TYPE_NONE, 1861 /*current_error*/ 1, 1862 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1863 /*asc*/ 0x4E, 1864 /*ascq*/ 0x00, 1865 SSD_ELEM_NONE); 1866 1867 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1868 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1869 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1870 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1871 msg_info.hdr.serializing_sc = NULL; 1872 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1873#if 0 1874 printf("BAD JUJU:Major Bummer Overlap\n"); 1875#endif 1876 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1877 retval = 1; 1878 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1879 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1880 } 1881 break; 1882 case CTL_ACTION_OVERLAP_TAG: 1883 /* TAGGED OVERLAPPED COMMANDS (NN = QUEUE TAG) */ 1884 ctl_set_sense_data(&msg_info.scsi.sense_data, 1885 lun, 1886 /*sense_format*/SSD_TYPE_NONE, 1887 /*current_error*/ 1, 1888 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1889 /*asc*/ 0x4D, 1890 /*ascq*/ ctsio->tag_num & 0xff, 1891 SSD_ELEM_NONE); 1892 1893 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1894 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1895 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1896 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1897 msg_info.hdr.serializing_sc = NULL; 1898 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1899#if 0 1900 printf("BAD JUJU:Major Bummer Overlap Tag\n"); 1901#endif 1902 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1903 retval = 1; 1904 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1905 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1906 } 1907 break; 1908 case CTL_ACTION_ERROR: 1909 default: 1910 /* "Internal target failure" */ 1911 ctl_set_sense_data(&msg_info.scsi.sense_data, 1912 lun, 1913 /*sense_format*/SSD_TYPE_NONE, 1914 /*current_error*/ 1, 1915 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 1916 /*asc*/ 0x44, 1917 /*ascq*/ 0x00, 1918 SSD_ELEM_NONE); 1919 1920 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1921 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1922 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1923 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1924 msg_info.hdr.serializing_sc = NULL; 1925 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1926#if 0 1927 printf("BAD JUJU:Major Bummer HW Error\n"); 1928#endif 1929 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1930 retval = 1; 1931 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1932 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1933 } 1934 break; 1935 } 1936 mtx_unlock(&lun->lun_lock); 1937 return (retval); 1938} 1939 1940static int 1941ctl_ioctl_submit_wait(union ctl_io *io) 1942{ 1943 struct ctl_fe_ioctl_params params; 1944 ctl_fe_ioctl_state last_state; 1945 int done, retval; 1946 1947 retval = 0; 1948 1949 bzero(¶ms, sizeof(params)); 1950 1951 mtx_init(¶ms.ioctl_mtx, "ctliocmtx", NULL, MTX_DEF); 1952 cv_init(¶ms.sem, "ctlioccv"); 1953 params.state = CTL_IOCTL_INPROG; 1954 last_state = params.state; 1955 1956 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = ¶ms; 1957 1958 CTL_DEBUG_PRINT(("ctl_ioctl_submit_wait\n")); 1959 1960 /* This shouldn't happen */ 1961 if ((retval = ctl_queue(io)) != CTL_RETVAL_COMPLETE) 1962 return (retval); 1963 1964 done = 0; 1965 1966 do { 1967 mtx_lock(¶ms.ioctl_mtx); 1968 /* 1969 * Check the state here, and don't sleep if the state has 1970 * already changed (i.e. wakeup has already occured, but we 1971 * weren't waiting yet). 1972 */ 1973 if (params.state == last_state) { 1974 /* XXX KDM cv_wait_sig instead? */ 1975 cv_wait(¶ms.sem, ¶ms.ioctl_mtx); 1976 } 1977 last_state = params.state; 1978 1979 switch (params.state) { 1980 case CTL_IOCTL_INPROG: 1981 /* Why did we wake up? */ 1982 /* XXX KDM error here? */ 1983 mtx_unlock(¶ms.ioctl_mtx); 1984 break; 1985 case CTL_IOCTL_DATAMOVE: 1986 CTL_DEBUG_PRINT(("got CTL_IOCTL_DATAMOVE\n")); 1987 1988 /* 1989 * change last_state back to INPROG to avoid 1990 * deadlock on subsequent data moves. 1991 */ 1992 params.state = last_state = CTL_IOCTL_INPROG; 1993 1994 mtx_unlock(¶ms.ioctl_mtx); 1995 ctl_ioctl_do_datamove(&io->scsiio); 1996 /* 1997 * Note that in some cases, most notably writes, 1998 * this will queue the I/O and call us back later. 1999 * In other cases, generally reads, this routine 2000 * will immediately call back and wake us up, 2001 * probably using our own context. 2002 */ 2003 io->scsiio.be_move_done(io); 2004 break; 2005 case CTL_IOCTL_DONE: 2006 mtx_unlock(¶ms.ioctl_mtx); 2007 CTL_DEBUG_PRINT(("got CTL_IOCTL_DONE\n")); 2008 done = 1; 2009 break; 2010 default: 2011 mtx_unlock(¶ms.ioctl_mtx); 2012 /* XXX KDM error here? */ 2013 break; 2014 } 2015 } while (done == 0); 2016 2017 mtx_destroy(¶ms.ioctl_mtx); 2018 cv_destroy(¶ms.sem); 2019 2020 return (CTL_RETVAL_COMPLETE); 2021} 2022 2023static void 2024ctl_ioctl_datamove(union ctl_io *io) 2025{ 2026 struct ctl_fe_ioctl_params *params; 2027 2028 params = (struct ctl_fe_ioctl_params *) 2029 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 2030 2031 mtx_lock(¶ms->ioctl_mtx); 2032 params->state = CTL_IOCTL_DATAMOVE; 2033 cv_broadcast(¶ms->sem); 2034 mtx_unlock(¶ms->ioctl_mtx); 2035} 2036 2037static void 2038ctl_ioctl_done(union ctl_io *io) 2039{ 2040 struct ctl_fe_ioctl_params *params; 2041 2042 params = (struct ctl_fe_ioctl_params *) 2043 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 2044 2045 mtx_lock(¶ms->ioctl_mtx); 2046 params->state = CTL_IOCTL_DONE; 2047 cv_broadcast(¶ms->sem); 2048 mtx_unlock(¶ms->ioctl_mtx); 2049} 2050 2051static void 2052ctl_ioctl_hard_startstop_callback(void *arg, struct cfi_metatask *metatask) 2053{ 2054 struct ctl_fe_ioctl_startstop_info *sd_info; 2055 2056 sd_info = (struct ctl_fe_ioctl_startstop_info *)arg; 2057 2058 sd_info->hs_info.status = metatask->status; 2059 sd_info->hs_info.total_luns = metatask->taskinfo.startstop.total_luns; 2060 sd_info->hs_info.luns_complete = 2061 metatask->taskinfo.startstop.luns_complete; 2062 sd_info->hs_info.luns_failed = metatask->taskinfo.startstop.luns_failed; 2063 2064 cv_broadcast(&sd_info->sem); 2065} 2066 2067static void 2068ctl_ioctl_bbrread_callback(void *arg, struct cfi_metatask *metatask) 2069{ 2070 struct ctl_fe_ioctl_bbrread_info *fe_bbr_info; 2071 2072 fe_bbr_info = (struct ctl_fe_ioctl_bbrread_info *)arg; 2073 2074 mtx_lock(fe_bbr_info->lock); 2075 fe_bbr_info->bbr_info->status = metatask->status; 2076 fe_bbr_info->bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2077 fe_bbr_info->wakeup_done = 1; 2078 mtx_unlock(fe_bbr_info->lock); 2079 2080 cv_broadcast(&fe_bbr_info->sem); 2081} 2082 2083/* 2084 * Returns 0 for success, errno for failure. 2085 */ 2086static int 2087ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2088 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2089{ 2090 union ctl_io *io; 2091 int retval; 2092 2093 retval = 0; 2094 2095 mtx_lock(&lun->lun_lock); 2096 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2097 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2098 ooa_links)) { 2099 struct ctl_ooa_entry *entry; 2100 2101 /* 2102 * If we've got more than we can fit, just count the 2103 * remaining entries. 2104 */ 2105 if (*cur_fill_num >= ooa_hdr->alloc_num) 2106 continue; 2107 2108 entry = &kern_entries[*cur_fill_num]; 2109 2110 entry->tag_num = io->scsiio.tag_num; 2111 entry->lun_num = lun->lun; 2112#ifdef CTL_TIME_IO 2113 entry->start_bt = io->io_hdr.start_bt; 2114#endif 2115 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2116 entry->cdb_len = io->scsiio.cdb_len; 2117 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2118 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2119 2120 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2121 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2122 2123 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2124 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2125 2126 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2127 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2128 2129 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2130 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2131 } 2132 mtx_unlock(&lun->lun_lock); 2133 2134 return (retval); 2135} 2136 2137static void * 2138ctl_copyin_alloc(void *user_addr, int len, char *error_str, 2139 size_t error_str_len) 2140{ 2141 void *kptr; 2142 2143 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2144 2145 if (copyin(user_addr, kptr, len) != 0) { 2146 snprintf(error_str, error_str_len, "Error copying %d bytes " 2147 "from user address %p to kernel address %p", len, 2148 user_addr, kptr); 2149 free(kptr, M_CTL); 2150 return (NULL); 2151 } 2152 2153 return (kptr); 2154} 2155 2156static void 2157ctl_free_args(int num_args, struct ctl_be_arg *args) 2158{ 2159 int i; 2160 2161 if (args == NULL) 2162 return; 2163 2164 for (i = 0; i < num_args; i++) { 2165 free(args[i].kname, M_CTL); 2166 free(args[i].kvalue, M_CTL); 2167 } 2168 2169 free(args, M_CTL); 2170} 2171 2172static struct ctl_be_arg * 2173ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2174 char *error_str, size_t error_str_len) 2175{ 2176 struct ctl_be_arg *args; 2177 int i; 2178 2179 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2180 error_str, error_str_len); 2181 2182 if (args == NULL) 2183 goto bailout; 2184 2185 for (i = 0; i < num_args; i++) { 2186 args[i].kname = NULL; 2187 args[i].kvalue = NULL; 2188 } 2189 2190 for (i = 0; i < num_args; i++) { 2191 uint8_t *tmpptr; 2192 2193 args[i].kname = ctl_copyin_alloc(args[i].name, 2194 args[i].namelen, error_str, error_str_len); 2195 if (args[i].kname == NULL) 2196 goto bailout; 2197 2198 if (args[i].kname[args[i].namelen - 1] != '\0') { 2199 snprintf(error_str, error_str_len, "Argument %d " 2200 "name is not NUL-terminated", i); 2201 goto bailout; 2202 } 2203 2204 if (args[i].flags & CTL_BEARG_RD) { 2205 tmpptr = ctl_copyin_alloc(args[i].value, 2206 args[i].vallen, error_str, error_str_len); 2207 if (tmpptr == NULL) 2208 goto bailout; 2209 if ((args[i].flags & CTL_BEARG_ASCII) 2210 && (tmpptr[args[i].vallen - 1] != '\0')) { 2211 snprintf(error_str, error_str_len, "Argument " 2212 "%d value is not NUL-terminated", i); 2213 goto bailout; 2214 } 2215 args[i].kvalue = tmpptr; 2216 } else { 2217 args[i].kvalue = malloc(args[i].vallen, 2218 M_CTL, M_WAITOK | M_ZERO); 2219 } 2220 } 2221 2222 return (args); 2223bailout: 2224 2225 ctl_free_args(num_args, args); 2226 2227 return (NULL); 2228} 2229 2230static void 2231ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2232{ 2233 int i; 2234 2235 for (i = 0; i < num_args; i++) { 2236 if (args[i].flags & CTL_BEARG_WR) 2237 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2238 } 2239} 2240 2241/* 2242 * Escape characters that are illegal or not recommended in XML. 2243 */ 2244int 2245ctl_sbuf_printf_esc(struct sbuf *sb, char *str, int size) 2246{ 2247 char *end = str + size; 2248 int retval; 2249 2250 retval = 0; 2251 2252 for (; *str && str < end; str++) { 2253 switch (*str) { 2254 case '&': 2255 retval = sbuf_printf(sb, "&"); 2256 break; 2257 case '>': 2258 retval = sbuf_printf(sb, ">"); 2259 break; 2260 case '<': 2261 retval = sbuf_printf(sb, "<"); 2262 break; 2263 default: 2264 retval = sbuf_putc(sb, *str); 2265 break; 2266 } 2267 2268 if (retval != 0) 2269 break; 2270 2271 } 2272 2273 return (retval); 2274} 2275 2276static void 2277ctl_id_sbuf(struct ctl_devid *id, struct sbuf *sb) 2278{ 2279 struct scsi_vpd_id_descriptor *desc; 2280 int i; 2281 2282 if (id == NULL || id->len < 4) 2283 return; 2284 desc = (struct scsi_vpd_id_descriptor *)id->data; 2285 switch (desc->id_type & SVPD_ID_TYPE_MASK) { 2286 case SVPD_ID_TYPE_T10: 2287 sbuf_printf(sb, "t10."); 2288 break; 2289 case SVPD_ID_TYPE_EUI64: 2290 sbuf_printf(sb, "eui."); 2291 break; 2292 case SVPD_ID_TYPE_NAA: 2293 sbuf_printf(sb, "naa."); 2294 break; 2295 case SVPD_ID_TYPE_SCSI_NAME: 2296 break; 2297 } 2298 switch (desc->proto_codeset & SVPD_ID_CODESET_MASK) { 2299 case SVPD_ID_CODESET_BINARY: 2300 for (i = 0; i < desc->length; i++) 2301 sbuf_printf(sb, "%02x", desc->identifier[i]); 2302 break; 2303 case SVPD_ID_CODESET_ASCII: 2304 sbuf_printf(sb, "%.*s", (int)desc->length, 2305 (char *)desc->identifier); 2306 break; 2307 case SVPD_ID_CODESET_UTF8: 2308 sbuf_printf(sb, "%s", (char *)desc->identifier); 2309 break; 2310 } 2311} 2312 2313static int 2314ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2315 struct thread *td) 2316{ 2317 struct ctl_softc *softc; 2318 int retval; 2319 2320 softc = control_softc; 2321 2322 retval = 0; 2323 2324 switch (cmd) { 2325 case CTL_IO: { 2326 union ctl_io *io; 2327 void *pool_tmp; 2328 2329 /* 2330 * If we haven't been "enabled", don't allow any SCSI I/O 2331 * to this FETD. 2332 */ 2333 if ((softc->ioctl_info.flags & CTL_IOCTL_FLAG_ENABLED) == 0) { 2334 retval = EPERM; 2335 break; 2336 } 2337 2338 io = ctl_alloc_io(softc->ioctl_info.port.ctl_pool_ref); 2339 2340 /* 2341 * Need to save the pool reference so it doesn't get 2342 * spammed by the user's ctl_io. 2343 */ 2344 pool_tmp = io->io_hdr.pool; 2345 memcpy(io, (void *)addr, sizeof(*io)); 2346 io->io_hdr.pool = pool_tmp; 2347 2348 /* 2349 * No status yet, so make sure the status is set properly. 2350 */ 2351 io->io_hdr.status = CTL_STATUS_NONE; 2352 2353 /* 2354 * The user sets the initiator ID, target and LUN IDs. 2355 */ 2356 io->io_hdr.nexus.targ_port = softc->ioctl_info.port.targ_port; 2357 io->io_hdr.flags |= CTL_FLAG_USER_REQ; 2358 if ((io->io_hdr.io_type == CTL_IO_SCSI) 2359 && (io->scsiio.tag_type != CTL_TAG_UNTAGGED)) 2360 io->scsiio.tag_num = softc->ioctl_info.cur_tag_num++; 2361 2362 retval = ctl_ioctl_submit_wait(io); 2363 2364 if (retval != 0) { 2365 ctl_free_io(io); 2366 break; 2367 } 2368 2369 memcpy((void *)addr, io, sizeof(*io)); 2370 2371 /* return this to our pool */ 2372 ctl_free_io(io); 2373 2374 break; 2375 } 2376 case CTL_ENABLE_PORT: 2377 case CTL_DISABLE_PORT: 2378 case CTL_SET_PORT_WWNS: { 2379 struct ctl_port *port; 2380 struct ctl_port_entry *entry; 2381 2382 entry = (struct ctl_port_entry *)addr; 2383 2384 mtx_lock(&softc->ctl_lock); 2385 STAILQ_FOREACH(port, &softc->port_list, links) { 2386 int action, done; 2387 2388 action = 0; 2389 done = 0; 2390 2391 if ((entry->port_type == CTL_PORT_NONE) 2392 && (entry->targ_port == port->targ_port)) { 2393 /* 2394 * If the user only wants to enable or 2395 * disable or set WWNs on a specific port, 2396 * do the operation and we're done. 2397 */ 2398 action = 1; 2399 done = 1; 2400 } else if (entry->port_type & port->port_type) { 2401 /* 2402 * Compare the user's type mask with the 2403 * particular frontend type to see if we 2404 * have a match. 2405 */ 2406 action = 1; 2407 done = 0; 2408 2409 /* 2410 * Make sure the user isn't trying to set 2411 * WWNs on multiple ports at the same time. 2412 */ 2413 if (cmd == CTL_SET_PORT_WWNS) { 2414 printf("%s: Can't set WWNs on " 2415 "multiple ports\n", __func__); 2416 retval = EINVAL; 2417 break; 2418 } 2419 } 2420 if (action != 0) { 2421 /* 2422 * XXX KDM we have to drop the lock here, 2423 * because the online/offline operations 2424 * can potentially block. We need to 2425 * reference count the frontends so they 2426 * can't go away, 2427 */ 2428 mtx_unlock(&softc->ctl_lock); 2429 2430 if (cmd == CTL_ENABLE_PORT) { 2431 struct ctl_lun *lun; 2432 2433 STAILQ_FOREACH(lun, &softc->lun_list, 2434 links) { 2435 port->lun_enable(port->targ_lun_arg, 2436 lun->target, 2437 lun->lun); 2438 } 2439 2440 ctl_port_online(port); 2441 } else if (cmd == CTL_DISABLE_PORT) { 2442 struct ctl_lun *lun; 2443 2444 ctl_port_offline(port); 2445 2446 STAILQ_FOREACH(lun, &softc->lun_list, 2447 links) { 2448 port->lun_disable( 2449 port->targ_lun_arg, 2450 lun->target, 2451 lun->lun); 2452 } 2453 } 2454 2455 mtx_lock(&softc->ctl_lock); 2456 2457 if (cmd == CTL_SET_PORT_WWNS) 2458 ctl_port_set_wwns(port, 2459 (entry->flags & CTL_PORT_WWNN_VALID) ? 2460 1 : 0, entry->wwnn, 2461 (entry->flags & CTL_PORT_WWPN_VALID) ? 2462 1 : 0, entry->wwpn); 2463 } 2464 if (done != 0) 2465 break; 2466 } 2467 mtx_unlock(&softc->ctl_lock); 2468 break; 2469 } 2470 case CTL_GET_PORT_LIST: { 2471 struct ctl_port *port; 2472 struct ctl_port_list *list; 2473 int i; 2474 2475 list = (struct ctl_port_list *)addr; 2476 2477 if (list->alloc_len != (list->alloc_num * 2478 sizeof(struct ctl_port_entry))) { 2479 printf("%s: CTL_GET_PORT_LIST: alloc_len %u != " 2480 "alloc_num %u * sizeof(struct ctl_port_entry) " 2481 "%zu\n", __func__, list->alloc_len, 2482 list->alloc_num, sizeof(struct ctl_port_entry)); 2483 retval = EINVAL; 2484 break; 2485 } 2486 list->fill_len = 0; 2487 list->fill_num = 0; 2488 list->dropped_num = 0; 2489 i = 0; 2490 mtx_lock(&softc->ctl_lock); 2491 STAILQ_FOREACH(port, &softc->port_list, links) { 2492 struct ctl_port_entry entry, *list_entry; 2493 2494 if (list->fill_num >= list->alloc_num) { 2495 list->dropped_num++; 2496 continue; 2497 } 2498 2499 entry.port_type = port->port_type; 2500 strlcpy(entry.port_name, port->port_name, 2501 sizeof(entry.port_name)); 2502 entry.targ_port = port->targ_port; 2503 entry.physical_port = port->physical_port; 2504 entry.virtual_port = port->virtual_port; 2505 entry.wwnn = port->wwnn; 2506 entry.wwpn = port->wwpn; 2507 if (port->status & CTL_PORT_STATUS_ONLINE) 2508 entry.online = 1; 2509 else 2510 entry.online = 0; 2511 2512 list_entry = &list->entries[i]; 2513 2514 retval = copyout(&entry, list_entry, sizeof(entry)); 2515 if (retval != 0) { 2516 printf("%s: CTL_GET_PORT_LIST: copyout " 2517 "returned %d\n", __func__, retval); 2518 break; 2519 } 2520 i++; 2521 list->fill_num++; 2522 list->fill_len += sizeof(entry); 2523 } 2524 mtx_unlock(&softc->ctl_lock); 2525 2526 /* 2527 * If this is non-zero, we had a copyout fault, so there's 2528 * probably no point in attempting to set the status inside 2529 * the structure. 2530 */ 2531 if (retval != 0) 2532 break; 2533 2534 if (list->dropped_num > 0) 2535 list->status = CTL_PORT_LIST_NEED_MORE_SPACE; 2536 else 2537 list->status = CTL_PORT_LIST_OK; 2538 break; 2539 } 2540 case CTL_DUMP_OOA: { 2541 struct ctl_lun *lun; 2542 union ctl_io *io; 2543 char printbuf[128]; 2544 struct sbuf sb; 2545 2546 mtx_lock(&softc->ctl_lock); 2547 printf("Dumping OOA queues:\n"); 2548 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2549 mtx_lock(&lun->lun_lock); 2550 for (io = (union ctl_io *)TAILQ_FIRST( 2551 &lun->ooa_queue); io != NULL; 2552 io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2553 ooa_links)) { 2554 sbuf_new(&sb, printbuf, sizeof(printbuf), 2555 SBUF_FIXEDLEN); 2556 sbuf_printf(&sb, "LUN %jd tag 0x%04x%s%s%s%s: ", 2557 (intmax_t)lun->lun, 2558 io->scsiio.tag_num, 2559 (io->io_hdr.flags & 2560 CTL_FLAG_BLOCKED) ? "" : " BLOCKED", 2561 (io->io_hdr.flags & 2562 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 2563 (io->io_hdr.flags & 2564 CTL_FLAG_ABORT) ? " ABORT" : "", 2565 (io->io_hdr.flags & 2566 CTL_FLAG_IS_WAS_ON_RTR) ? " RTR" : ""); 2567 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 2568 sbuf_finish(&sb); 2569 printf("%s\n", sbuf_data(&sb)); 2570 } 2571 mtx_unlock(&lun->lun_lock); 2572 } 2573 printf("OOA queues dump done\n"); 2574 mtx_unlock(&softc->ctl_lock); 2575 break; 2576 } 2577 case CTL_GET_OOA: { 2578 struct ctl_lun *lun; 2579 struct ctl_ooa *ooa_hdr; 2580 struct ctl_ooa_entry *entries; 2581 uint32_t cur_fill_num; 2582 2583 ooa_hdr = (struct ctl_ooa *)addr; 2584 2585 if ((ooa_hdr->alloc_len == 0) 2586 || (ooa_hdr->alloc_num == 0)) { 2587 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2588 "must be non-zero\n", __func__, 2589 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2590 retval = EINVAL; 2591 break; 2592 } 2593 2594 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2595 sizeof(struct ctl_ooa_entry))) { 2596 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2597 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2598 __func__, ooa_hdr->alloc_len, 2599 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2600 retval = EINVAL; 2601 break; 2602 } 2603 2604 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2605 if (entries == NULL) { 2606 printf("%s: could not allocate %d bytes for OOA " 2607 "dump\n", __func__, ooa_hdr->alloc_len); 2608 retval = ENOMEM; 2609 break; 2610 } 2611 2612 mtx_lock(&softc->ctl_lock); 2613 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2614 && ((ooa_hdr->lun_num >= CTL_MAX_LUNS) 2615 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2616 mtx_unlock(&softc->ctl_lock); 2617 free(entries, M_CTL); 2618 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2619 __func__, (uintmax_t)ooa_hdr->lun_num); 2620 retval = EINVAL; 2621 break; 2622 } 2623 2624 cur_fill_num = 0; 2625 2626 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2627 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2628 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2629 ooa_hdr, entries); 2630 if (retval != 0) 2631 break; 2632 } 2633 if (retval != 0) { 2634 mtx_unlock(&softc->ctl_lock); 2635 free(entries, M_CTL); 2636 break; 2637 } 2638 } else { 2639 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2640 2641 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num,ooa_hdr, 2642 entries); 2643 } 2644 mtx_unlock(&softc->ctl_lock); 2645 2646 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2647 ooa_hdr->fill_len = ooa_hdr->fill_num * 2648 sizeof(struct ctl_ooa_entry); 2649 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2650 if (retval != 0) { 2651 printf("%s: error copying out %d bytes for OOA dump\n", 2652 __func__, ooa_hdr->fill_len); 2653 } 2654 2655 getbintime(&ooa_hdr->cur_bt); 2656 2657 if (cur_fill_num > ooa_hdr->alloc_num) { 2658 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2659 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2660 } else { 2661 ooa_hdr->dropped_num = 0; 2662 ooa_hdr->status = CTL_OOA_OK; 2663 } 2664 2665 free(entries, M_CTL); 2666 break; 2667 } 2668 case CTL_CHECK_OOA: { 2669 union ctl_io *io; 2670 struct ctl_lun *lun; 2671 struct ctl_ooa_info *ooa_info; 2672 2673 2674 ooa_info = (struct ctl_ooa_info *)addr; 2675 2676 if (ooa_info->lun_id >= CTL_MAX_LUNS) { 2677 ooa_info->status = CTL_OOA_INVALID_LUN; 2678 break; 2679 } 2680 mtx_lock(&softc->ctl_lock); 2681 lun = softc->ctl_luns[ooa_info->lun_id]; 2682 if (lun == NULL) { 2683 mtx_unlock(&softc->ctl_lock); 2684 ooa_info->status = CTL_OOA_INVALID_LUN; 2685 break; 2686 } 2687 mtx_lock(&lun->lun_lock); 2688 mtx_unlock(&softc->ctl_lock); 2689 ooa_info->num_entries = 0; 2690 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 2691 io != NULL; io = (union ctl_io *)TAILQ_NEXT( 2692 &io->io_hdr, ooa_links)) { 2693 ooa_info->num_entries++; 2694 } 2695 mtx_unlock(&lun->lun_lock); 2696 2697 ooa_info->status = CTL_OOA_SUCCESS; 2698 2699 break; 2700 } 2701 case CTL_HARD_START: 2702 case CTL_HARD_STOP: { 2703 struct ctl_fe_ioctl_startstop_info ss_info; 2704 struct cfi_metatask *metatask; 2705 struct mtx hs_mtx; 2706 2707 mtx_init(&hs_mtx, "HS Mutex", NULL, MTX_DEF); 2708 2709 cv_init(&ss_info.sem, "hard start/stop cv" ); 2710 2711 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2712 if (metatask == NULL) { 2713 retval = ENOMEM; 2714 mtx_destroy(&hs_mtx); 2715 break; 2716 } 2717 2718 if (cmd == CTL_HARD_START) 2719 metatask->tasktype = CFI_TASK_STARTUP; 2720 else 2721 metatask->tasktype = CFI_TASK_SHUTDOWN; 2722 2723 metatask->callback = ctl_ioctl_hard_startstop_callback; 2724 metatask->callback_arg = &ss_info; 2725 2726 cfi_action(metatask); 2727 2728 /* Wait for the callback */ 2729 mtx_lock(&hs_mtx); 2730 cv_wait_sig(&ss_info.sem, &hs_mtx); 2731 mtx_unlock(&hs_mtx); 2732 2733 /* 2734 * All information has been copied from the metatask by the 2735 * time cv_broadcast() is called, so we free the metatask here. 2736 */ 2737 cfi_free_metatask(metatask); 2738 2739 memcpy((void *)addr, &ss_info.hs_info, sizeof(ss_info.hs_info)); 2740 2741 mtx_destroy(&hs_mtx); 2742 break; 2743 } 2744 case CTL_BBRREAD: { 2745 struct ctl_bbrread_info *bbr_info; 2746 struct ctl_fe_ioctl_bbrread_info fe_bbr_info; 2747 struct mtx bbr_mtx; 2748 struct cfi_metatask *metatask; 2749 2750 bbr_info = (struct ctl_bbrread_info *)addr; 2751 2752 bzero(&fe_bbr_info, sizeof(fe_bbr_info)); 2753 2754 bzero(&bbr_mtx, sizeof(bbr_mtx)); 2755 mtx_init(&bbr_mtx, "BBR Mutex", NULL, MTX_DEF); 2756 2757 fe_bbr_info.bbr_info = bbr_info; 2758 fe_bbr_info.lock = &bbr_mtx; 2759 2760 cv_init(&fe_bbr_info.sem, "BBR read cv"); 2761 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2762 2763 if (metatask == NULL) { 2764 mtx_destroy(&bbr_mtx); 2765 cv_destroy(&fe_bbr_info.sem); 2766 retval = ENOMEM; 2767 break; 2768 } 2769 metatask->tasktype = CFI_TASK_BBRREAD; 2770 metatask->callback = ctl_ioctl_bbrread_callback; 2771 metatask->callback_arg = &fe_bbr_info; 2772 metatask->taskinfo.bbrread.lun_num = bbr_info->lun_num; 2773 metatask->taskinfo.bbrread.lba = bbr_info->lba; 2774 metatask->taskinfo.bbrread.len = bbr_info->len; 2775 2776 cfi_action(metatask); 2777 2778 mtx_lock(&bbr_mtx); 2779 while (fe_bbr_info.wakeup_done == 0) 2780 cv_wait_sig(&fe_bbr_info.sem, &bbr_mtx); 2781 mtx_unlock(&bbr_mtx); 2782 2783 bbr_info->status = metatask->status; 2784 bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2785 bbr_info->scsi_status = metatask->taskinfo.bbrread.scsi_status; 2786 memcpy(&bbr_info->sense_data, 2787 &metatask->taskinfo.bbrread.sense_data, 2788 ctl_min(sizeof(bbr_info->sense_data), 2789 sizeof(metatask->taskinfo.bbrread.sense_data))); 2790 2791 cfi_free_metatask(metatask); 2792 2793 mtx_destroy(&bbr_mtx); 2794 cv_destroy(&fe_bbr_info.sem); 2795 2796 break; 2797 } 2798 case CTL_DELAY_IO: { 2799 struct ctl_io_delay_info *delay_info; 2800#ifdef CTL_IO_DELAY 2801 struct ctl_lun *lun; 2802#endif /* CTL_IO_DELAY */ 2803 2804 delay_info = (struct ctl_io_delay_info *)addr; 2805 2806#ifdef CTL_IO_DELAY 2807 mtx_lock(&softc->ctl_lock); 2808 2809 if ((delay_info->lun_id >= CTL_MAX_LUNS) 2810 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2811 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2812 } else { 2813 lun = softc->ctl_luns[delay_info->lun_id]; 2814 mtx_lock(&lun->lun_lock); 2815 2816 delay_info->status = CTL_DELAY_STATUS_OK; 2817 2818 switch (delay_info->delay_type) { 2819 case CTL_DELAY_TYPE_CONT: 2820 break; 2821 case CTL_DELAY_TYPE_ONESHOT: 2822 break; 2823 default: 2824 delay_info->status = 2825 CTL_DELAY_STATUS_INVALID_TYPE; 2826 break; 2827 } 2828 2829 switch (delay_info->delay_loc) { 2830 case CTL_DELAY_LOC_DATAMOVE: 2831 lun->delay_info.datamove_type = 2832 delay_info->delay_type; 2833 lun->delay_info.datamove_delay = 2834 delay_info->delay_secs; 2835 break; 2836 case CTL_DELAY_LOC_DONE: 2837 lun->delay_info.done_type = 2838 delay_info->delay_type; 2839 lun->delay_info.done_delay = 2840 delay_info->delay_secs; 2841 break; 2842 default: 2843 delay_info->status = 2844 CTL_DELAY_STATUS_INVALID_LOC; 2845 break; 2846 } 2847 mtx_unlock(&lun->lun_lock); 2848 } 2849 2850 mtx_unlock(&softc->ctl_lock); 2851#else 2852 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2853#endif /* CTL_IO_DELAY */ 2854 break; 2855 } 2856 case CTL_REALSYNC_SET: { 2857 int *syncstate; 2858 2859 syncstate = (int *)addr; 2860 2861 mtx_lock(&softc->ctl_lock); 2862 switch (*syncstate) { 2863 case 0: 2864 softc->flags &= ~CTL_FLAG_REAL_SYNC; 2865 break; 2866 case 1: 2867 softc->flags |= CTL_FLAG_REAL_SYNC; 2868 break; 2869 default: 2870 retval = EINVAL; 2871 break; 2872 } 2873 mtx_unlock(&softc->ctl_lock); 2874 break; 2875 } 2876 case CTL_REALSYNC_GET: { 2877 int *syncstate; 2878 2879 syncstate = (int*)addr; 2880 2881 mtx_lock(&softc->ctl_lock); 2882 if (softc->flags & CTL_FLAG_REAL_SYNC) 2883 *syncstate = 1; 2884 else 2885 *syncstate = 0; 2886 mtx_unlock(&softc->ctl_lock); 2887 2888 break; 2889 } 2890 case CTL_SETSYNC: 2891 case CTL_GETSYNC: { 2892 struct ctl_sync_info *sync_info; 2893 struct ctl_lun *lun; 2894 2895 sync_info = (struct ctl_sync_info *)addr; 2896 2897 mtx_lock(&softc->ctl_lock); 2898 lun = softc->ctl_luns[sync_info->lun_id]; 2899 if (lun == NULL) { 2900 mtx_unlock(&softc->ctl_lock); 2901 sync_info->status = CTL_GS_SYNC_NO_LUN; 2902 } 2903 /* 2904 * Get or set the sync interval. We're not bounds checking 2905 * in the set case, hopefully the user won't do something 2906 * silly. 2907 */ 2908 mtx_lock(&lun->lun_lock); 2909 mtx_unlock(&softc->ctl_lock); 2910 if (cmd == CTL_GETSYNC) 2911 sync_info->sync_interval = lun->sync_interval; 2912 else 2913 lun->sync_interval = sync_info->sync_interval; 2914 mtx_unlock(&lun->lun_lock); 2915 2916 sync_info->status = CTL_GS_SYNC_OK; 2917 2918 break; 2919 } 2920 case CTL_GETSTATS: { 2921 struct ctl_stats *stats; 2922 struct ctl_lun *lun; 2923 int i; 2924 2925 stats = (struct ctl_stats *)addr; 2926 2927 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2928 stats->alloc_len) { 2929 stats->status = CTL_SS_NEED_MORE_SPACE; 2930 stats->num_luns = softc->num_luns; 2931 break; 2932 } 2933 /* 2934 * XXX KDM no locking here. If the LUN list changes, 2935 * things can blow up. 2936 */ 2937 for (i = 0, lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; 2938 i++, lun = STAILQ_NEXT(lun, links)) { 2939 retval = copyout(&lun->stats, &stats->lun_stats[i], 2940 sizeof(lun->stats)); 2941 if (retval != 0) 2942 break; 2943 } 2944 stats->num_luns = softc->num_luns; 2945 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2946 softc->num_luns; 2947 stats->status = CTL_SS_OK; 2948#ifdef CTL_TIME_IO 2949 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2950#else 2951 stats->flags = CTL_STATS_FLAG_NONE; 2952#endif 2953 getnanouptime(&stats->timestamp); 2954 break; 2955 } 2956 case CTL_ERROR_INJECT: { 2957 struct ctl_error_desc *err_desc, *new_err_desc; 2958 struct ctl_lun *lun; 2959 2960 err_desc = (struct ctl_error_desc *)addr; 2961 2962 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2963 M_WAITOK | M_ZERO); 2964 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2965 2966 mtx_lock(&softc->ctl_lock); 2967 lun = softc->ctl_luns[err_desc->lun_id]; 2968 if (lun == NULL) { 2969 mtx_unlock(&softc->ctl_lock); 2970 free(new_err_desc, M_CTL); 2971 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2972 __func__, (uintmax_t)err_desc->lun_id); 2973 retval = EINVAL; 2974 break; 2975 } 2976 mtx_lock(&lun->lun_lock); 2977 mtx_unlock(&softc->ctl_lock); 2978 2979 /* 2980 * We could do some checking here to verify the validity 2981 * of the request, but given the complexity of error 2982 * injection requests, the checking logic would be fairly 2983 * complex. 2984 * 2985 * For now, if the request is invalid, it just won't get 2986 * executed and might get deleted. 2987 */ 2988 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2989 2990 /* 2991 * XXX KDM check to make sure the serial number is unique, 2992 * in case we somehow manage to wrap. That shouldn't 2993 * happen for a very long time, but it's the right thing to 2994 * do. 2995 */ 2996 new_err_desc->serial = lun->error_serial; 2997 err_desc->serial = lun->error_serial; 2998 lun->error_serial++; 2999 3000 mtx_unlock(&lun->lun_lock); 3001 break; 3002 } 3003 case CTL_ERROR_INJECT_DELETE: { 3004 struct ctl_error_desc *delete_desc, *desc, *desc2; 3005 struct ctl_lun *lun; 3006 int delete_done; 3007 3008 delete_desc = (struct ctl_error_desc *)addr; 3009 delete_done = 0; 3010 3011 mtx_lock(&softc->ctl_lock); 3012 lun = softc->ctl_luns[delete_desc->lun_id]; 3013 if (lun == NULL) { 3014 mtx_unlock(&softc->ctl_lock); 3015 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 3016 __func__, (uintmax_t)delete_desc->lun_id); 3017 retval = EINVAL; 3018 break; 3019 } 3020 mtx_lock(&lun->lun_lock); 3021 mtx_unlock(&softc->ctl_lock); 3022 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 3023 if (desc->serial != delete_desc->serial) 3024 continue; 3025 3026 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 3027 links); 3028 free(desc, M_CTL); 3029 delete_done = 1; 3030 } 3031 mtx_unlock(&lun->lun_lock); 3032 if (delete_done == 0) { 3033 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 3034 "error serial %ju on LUN %u\n", __func__, 3035 delete_desc->serial, delete_desc->lun_id); 3036 retval = EINVAL; 3037 break; 3038 } 3039 break; 3040 } 3041 case CTL_DUMP_STRUCTS: { 3042 int i, j, k, idx; 3043 struct ctl_port *port; 3044 struct ctl_frontend *fe; 3045 3046 mtx_lock(&softc->ctl_lock); 3047 printf("CTL Persistent Reservation information start:\n"); 3048 for (i = 0; i < CTL_MAX_LUNS; i++) { 3049 struct ctl_lun *lun; 3050 3051 lun = softc->ctl_luns[i]; 3052 3053 if ((lun == NULL) 3054 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 3055 continue; 3056 3057 for (j = 0; j < (CTL_MAX_PORTS * 2); j++) { 3058 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 3059 idx = j * CTL_MAX_INIT_PER_PORT + k; 3060 if (lun->pr_keys[idx] == 0) 3061 continue; 3062 printf(" LUN %d port %d iid %d key " 3063 "%#jx\n", i, j, k, 3064 (uintmax_t)lun->pr_keys[idx]); 3065 } 3066 } 3067 } 3068 printf("CTL Persistent Reservation information end\n"); 3069 printf("CTL Ports:\n"); 3070 STAILQ_FOREACH(port, &softc->port_list, links) { 3071 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 3072 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 3073 port->frontend->name, port->port_type, 3074 port->physical_port, port->virtual_port, 3075 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 3076 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3077 if (port->wwpn_iid[j].in_use == 0 && 3078 port->wwpn_iid[j].wwpn == 0 && 3079 port->wwpn_iid[j].name == NULL) 3080 continue; 3081 3082 printf(" iid %u use %d WWPN %#jx '%s'\n", 3083 j, port->wwpn_iid[j].in_use, 3084 (uintmax_t)port->wwpn_iid[j].wwpn, 3085 port->wwpn_iid[j].name); 3086 } 3087 } 3088 printf("CTL Port information end\n"); 3089 mtx_unlock(&softc->ctl_lock); 3090 /* 3091 * XXX KDM calling this without a lock. We'd likely want 3092 * to drop the lock before calling the frontend's dump 3093 * routine anyway. 3094 */ 3095 printf("CTL Frontends:\n"); 3096 STAILQ_FOREACH(fe, &softc->fe_list, links) { 3097 printf(" Frontend '%s'\n", fe->name); 3098 if (fe->fe_dump != NULL) 3099 fe->fe_dump(); 3100 } 3101 printf("CTL Frontend information end\n"); 3102 break; 3103 } 3104 case CTL_LUN_REQ: { 3105 struct ctl_lun_req *lun_req; 3106 struct ctl_backend_driver *backend; 3107 3108 lun_req = (struct ctl_lun_req *)addr; 3109 3110 backend = ctl_backend_find(lun_req->backend); 3111 if (backend == NULL) { 3112 lun_req->status = CTL_LUN_ERROR; 3113 snprintf(lun_req->error_str, 3114 sizeof(lun_req->error_str), 3115 "Backend \"%s\" not found.", 3116 lun_req->backend); 3117 break; 3118 } 3119 if (lun_req->num_be_args > 0) { 3120 lun_req->kern_be_args = ctl_copyin_args( 3121 lun_req->num_be_args, 3122 lun_req->be_args, 3123 lun_req->error_str, 3124 sizeof(lun_req->error_str)); 3125 if (lun_req->kern_be_args == NULL) { 3126 lun_req->status = CTL_LUN_ERROR; 3127 break; 3128 } 3129 } 3130 3131 retval = backend->ioctl(dev, cmd, addr, flag, td); 3132 3133 if (lun_req->num_be_args > 0) { 3134 ctl_copyout_args(lun_req->num_be_args, 3135 lun_req->kern_be_args); 3136 ctl_free_args(lun_req->num_be_args, 3137 lun_req->kern_be_args); 3138 } 3139 break; 3140 } 3141 case CTL_LUN_LIST: { 3142 struct sbuf *sb; 3143 struct ctl_lun *lun; 3144 struct ctl_lun_list *list; 3145 struct ctl_option *opt; 3146 3147 list = (struct ctl_lun_list *)addr; 3148 3149 /* 3150 * Allocate a fixed length sbuf here, based on the length 3151 * of the user's buffer. We could allocate an auto-extending 3152 * buffer, and then tell the user how much larger our 3153 * amount of data is than his buffer, but that presents 3154 * some problems: 3155 * 3156 * 1. The sbuf(9) routines use a blocking malloc, and so 3157 * we can't hold a lock while calling them with an 3158 * auto-extending buffer. 3159 * 3160 * 2. There is not currently a LUN reference counting 3161 * mechanism, outside of outstanding transactions on 3162 * the LUN's OOA queue. So a LUN could go away on us 3163 * while we're getting the LUN number, backend-specific 3164 * information, etc. Thus, given the way things 3165 * currently work, we need to hold the CTL lock while 3166 * grabbing LUN information. 3167 * 3168 * So, from the user's standpoint, the best thing to do is 3169 * allocate what he thinks is a reasonable buffer length, 3170 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3171 * double the buffer length and try again. (And repeat 3172 * that until he succeeds.) 3173 */ 3174 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3175 if (sb == NULL) { 3176 list->status = CTL_LUN_LIST_ERROR; 3177 snprintf(list->error_str, sizeof(list->error_str), 3178 "Unable to allocate %d bytes for LUN list", 3179 list->alloc_len); 3180 break; 3181 } 3182 3183 sbuf_printf(sb, "<ctllunlist>\n"); 3184 3185 mtx_lock(&softc->ctl_lock); 3186 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3187 mtx_lock(&lun->lun_lock); 3188 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3189 (uintmax_t)lun->lun); 3190 3191 /* 3192 * Bail out as soon as we see that we've overfilled 3193 * the buffer. 3194 */ 3195 if (retval != 0) 3196 break; 3197 3198 retval = sbuf_printf(sb, "\t<backend_type>%s" 3199 "</backend_type>\n", 3200 (lun->backend == NULL) ? "none" : 3201 lun->backend->name); 3202 3203 if (retval != 0) 3204 break; 3205 3206 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3207 lun->be_lun->lun_type); 3208 3209 if (retval != 0) 3210 break; 3211 3212 if (lun->backend == NULL) { 3213 retval = sbuf_printf(sb, "</lun>\n"); 3214 if (retval != 0) 3215 break; 3216 continue; 3217 } 3218 3219 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3220 (lun->be_lun->maxlba > 0) ? 3221 lun->be_lun->maxlba + 1 : 0); 3222 3223 if (retval != 0) 3224 break; 3225 3226 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3227 lun->be_lun->blocksize); 3228 3229 if (retval != 0) 3230 break; 3231 3232 retval = sbuf_printf(sb, "\t<serial_number>"); 3233 3234 if (retval != 0) 3235 break; 3236 3237 retval = ctl_sbuf_printf_esc(sb, 3238 lun->be_lun->serial_num, 3239 sizeof(lun->be_lun->serial_num)); 3240 3241 if (retval != 0) 3242 break; 3243 3244 retval = sbuf_printf(sb, "</serial_number>\n"); 3245 3246 if (retval != 0) 3247 break; 3248 3249 retval = sbuf_printf(sb, "\t<device_id>"); 3250 3251 if (retval != 0) 3252 break; 3253 3254 retval = ctl_sbuf_printf_esc(sb, 3255 lun->be_lun->device_id, 3256 sizeof(lun->be_lun->device_id)); 3257 3258 if (retval != 0) 3259 break; 3260 3261 retval = sbuf_printf(sb, "</device_id>\n"); 3262 3263 if (retval != 0) 3264 break; 3265 3266 if (lun->backend->lun_info != NULL) { 3267 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3268 if (retval != 0) 3269 break; 3270 } 3271 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3272 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3273 opt->name, opt->value, opt->name); 3274 if (retval != 0) 3275 break; 3276 } 3277 3278 retval = sbuf_printf(sb, "</lun>\n"); 3279 3280 if (retval != 0) 3281 break; 3282 mtx_unlock(&lun->lun_lock); 3283 } 3284 if (lun != NULL) 3285 mtx_unlock(&lun->lun_lock); 3286 mtx_unlock(&softc->ctl_lock); 3287 3288 if ((retval != 0) 3289 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3290 retval = 0; 3291 sbuf_delete(sb); 3292 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3293 snprintf(list->error_str, sizeof(list->error_str), 3294 "Out of space, %d bytes is too small", 3295 list->alloc_len); 3296 break; 3297 } 3298 3299 sbuf_finish(sb); 3300 3301 retval = copyout(sbuf_data(sb), list->lun_xml, 3302 sbuf_len(sb) + 1); 3303 3304 list->fill_len = sbuf_len(sb) + 1; 3305 list->status = CTL_LUN_LIST_OK; 3306 sbuf_delete(sb); 3307 break; 3308 } 3309 case CTL_ISCSI: { 3310 struct ctl_iscsi *ci; 3311 struct ctl_frontend *fe; 3312 3313 ci = (struct ctl_iscsi *)addr; 3314 3315 fe = ctl_frontend_find("iscsi"); 3316 if (fe == NULL) { 3317 ci->status = CTL_ISCSI_ERROR; 3318 snprintf(ci->error_str, sizeof(ci->error_str), 3319 "Frontend \"iscsi\" not found."); 3320 break; 3321 } 3322 3323 retval = fe->ioctl(dev, cmd, addr, flag, td); 3324 break; 3325 } 3326 case CTL_PORT_REQ: { 3327 struct ctl_req *req; 3328 struct ctl_frontend *fe; 3329 3330 req = (struct ctl_req *)addr; 3331 3332 fe = ctl_frontend_find(req->driver); 3333 if (fe == NULL) { 3334 req->status = CTL_LUN_ERROR; 3335 snprintf(req->error_str, sizeof(req->error_str), 3336 "Frontend \"%s\" not found.", req->driver); 3337 break; 3338 } 3339 if (req->num_args > 0) { 3340 req->kern_args = ctl_copyin_args(req->num_args, 3341 req->args, req->error_str, sizeof(req->error_str)); 3342 if (req->kern_args == NULL) { 3343 req->status = CTL_LUN_ERROR; 3344 break; 3345 } 3346 } 3347 3348 retval = fe->ioctl(dev, cmd, addr, flag, td); 3349 3350 if (req->num_args > 0) { 3351 ctl_copyout_args(req->num_args, req->kern_args); 3352 ctl_free_args(req->num_args, req->kern_args); 3353 } 3354 break; 3355 } 3356 case CTL_PORT_LIST: { 3357 struct sbuf *sb; 3358 struct ctl_port *port; 3359 struct ctl_lun_list *list; 3360 struct ctl_option *opt; 3361 int j; 3362 3363 list = (struct ctl_lun_list *)addr; 3364 3365 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3366 if (sb == NULL) { 3367 list->status = CTL_LUN_LIST_ERROR; 3368 snprintf(list->error_str, sizeof(list->error_str), 3369 "Unable to allocate %d bytes for LUN list", 3370 list->alloc_len); 3371 break; 3372 } 3373 3374 sbuf_printf(sb, "<ctlportlist>\n"); 3375 3376 mtx_lock(&softc->ctl_lock); 3377 STAILQ_FOREACH(port, &softc->port_list, links) { 3378 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3379 (uintmax_t)port->targ_port); 3380 3381 /* 3382 * Bail out as soon as we see that we've overfilled 3383 * the buffer. 3384 */ 3385 if (retval != 0) 3386 break; 3387 3388 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3389 "</frontend_type>\n", port->frontend->name); 3390 if (retval != 0) 3391 break; 3392 3393 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3394 port->port_type); 3395 if (retval != 0) 3396 break; 3397 3398 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3399 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3400 if (retval != 0) 3401 break; 3402 3403 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3404 port->port_name); 3405 if (retval != 0) 3406 break; 3407 3408 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3409 port->physical_port); 3410 if (retval != 0) 3411 break; 3412 3413 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3414 port->virtual_port); 3415 if (retval != 0) 3416 break; 3417 3418 if (port->target_devid != NULL) { 3419 sbuf_printf(sb, "\t<target>"); 3420 ctl_id_sbuf(port->target_devid, sb); 3421 sbuf_printf(sb, "</target>\n"); 3422 } 3423 3424 if (port->port_devid != NULL) { 3425 sbuf_printf(sb, "\t<port>"); 3426 ctl_id_sbuf(port->port_devid, sb); 3427 sbuf_printf(sb, "</port>\n"); 3428 } 3429 3430 if (port->port_info != NULL) { 3431 retval = port->port_info(port->onoff_arg, sb); 3432 if (retval != 0) 3433 break; 3434 } 3435 STAILQ_FOREACH(opt, &port->options, links) { 3436 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3437 opt->name, opt->value, opt->name); 3438 if (retval != 0) 3439 break; 3440 } 3441 3442 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3443 if (port->wwpn_iid[j].in_use == 0 || 3444 (port->wwpn_iid[j].wwpn == 0 && 3445 port->wwpn_iid[j].name == NULL)) 3446 continue; 3447 3448 if (port->wwpn_iid[j].name != NULL) 3449 retval = sbuf_printf(sb, 3450 "\t<initiator>%u %s</initiator>\n", 3451 j, port->wwpn_iid[j].name); 3452 else 3453 retval = sbuf_printf(sb, 3454 "\t<initiator>%u naa.%08jx</initiator>\n", 3455 j, port->wwpn_iid[j].wwpn); 3456 if (retval != 0) 3457 break; 3458 } 3459 if (retval != 0) 3460 break; 3461 3462 retval = sbuf_printf(sb, "</targ_port>\n"); 3463 if (retval != 0) 3464 break; 3465 } 3466 mtx_unlock(&softc->ctl_lock); 3467 3468 if ((retval != 0) 3469 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3470 retval = 0; 3471 sbuf_delete(sb); 3472 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3473 snprintf(list->error_str, sizeof(list->error_str), 3474 "Out of space, %d bytes is too small", 3475 list->alloc_len); 3476 break; 3477 } 3478 3479 sbuf_finish(sb); 3480 3481 retval = copyout(sbuf_data(sb), list->lun_xml, 3482 sbuf_len(sb) + 1); 3483 3484 list->fill_len = sbuf_len(sb) + 1; 3485 list->status = CTL_LUN_LIST_OK; 3486 sbuf_delete(sb); 3487 break; 3488 } 3489 default: { 3490 /* XXX KDM should we fix this? */ 3491#if 0 3492 struct ctl_backend_driver *backend; 3493 unsigned int type; 3494 int found; 3495 3496 found = 0; 3497 3498 /* 3499 * We encode the backend type as the ioctl type for backend 3500 * ioctls. So parse it out here, and then search for a 3501 * backend of this type. 3502 */ 3503 type = _IOC_TYPE(cmd); 3504 3505 STAILQ_FOREACH(backend, &softc->be_list, links) { 3506 if (backend->type == type) { 3507 found = 1; 3508 break; 3509 } 3510 } 3511 if (found == 0) { 3512 printf("ctl: unknown ioctl command %#lx or backend " 3513 "%d\n", cmd, type); 3514 retval = EINVAL; 3515 break; 3516 } 3517 retval = backend->ioctl(dev, cmd, addr, flag, td); 3518#endif 3519 retval = ENOTTY; 3520 break; 3521 } 3522 } 3523 return (retval); 3524} 3525 3526uint32_t 3527ctl_get_initindex(struct ctl_nexus *nexus) 3528{ 3529 if (nexus->targ_port < CTL_MAX_PORTS) 3530 return (nexus->initid.id + 3531 (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3532 else 3533 return (nexus->initid.id + 3534 ((nexus->targ_port - CTL_MAX_PORTS) * 3535 CTL_MAX_INIT_PER_PORT)); 3536} 3537 3538uint32_t 3539ctl_get_resindex(struct ctl_nexus *nexus) 3540{ 3541 return (nexus->initid.id + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3542} 3543 3544uint32_t 3545ctl_port_idx(int port_num) 3546{ 3547 if (port_num < CTL_MAX_PORTS) 3548 return(port_num); 3549 else 3550 return(port_num - CTL_MAX_PORTS); 3551} 3552 3553static uint32_t 3554ctl_map_lun(int port_num, uint32_t lun_id) 3555{ 3556 struct ctl_port *port; 3557 3558 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3559 if (port == NULL) 3560 return (UINT32_MAX); 3561 if (port->lun_map == NULL) 3562 return (lun_id); 3563 return (port->lun_map(port->targ_lun_arg, lun_id)); 3564} 3565 3566static uint32_t 3567ctl_map_lun_back(int port_num, uint32_t lun_id) 3568{ 3569 struct ctl_port *port; 3570 uint32_t i; 3571 3572 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3573 if (port->lun_map == NULL) 3574 return (lun_id); 3575 for (i = 0; i < CTL_MAX_LUNS; i++) { 3576 if (port->lun_map(port->targ_lun_arg, i) == lun_id) 3577 return (i); 3578 } 3579 return (UINT32_MAX); 3580} 3581 3582/* 3583 * Note: This only works for bitmask sizes that are at least 32 bits, and 3584 * that are a power of 2. 3585 */ 3586int 3587ctl_ffz(uint32_t *mask, uint32_t size) 3588{ 3589 uint32_t num_chunks, num_pieces; 3590 int i, j; 3591 3592 num_chunks = (size >> 5); 3593 if (num_chunks == 0) 3594 num_chunks++; 3595 num_pieces = ctl_min((sizeof(uint32_t) * 8), size); 3596 3597 for (i = 0; i < num_chunks; i++) { 3598 for (j = 0; j < num_pieces; j++) { 3599 if ((mask[i] & (1 << j)) == 0) 3600 return ((i << 5) + j); 3601 } 3602 } 3603 3604 return (-1); 3605} 3606 3607int 3608ctl_set_mask(uint32_t *mask, uint32_t bit) 3609{ 3610 uint32_t chunk, piece; 3611 3612 chunk = bit >> 5; 3613 piece = bit % (sizeof(uint32_t) * 8); 3614 3615 if ((mask[chunk] & (1 << piece)) != 0) 3616 return (-1); 3617 else 3618 mask[chunk] |= (1 << piece); 3619 3620 return (0); 3621} 3622 3623int 3624ctl_clear_mask(uint32_t *mask, uint32_t bit) 3625{ 3626 uint32_t chunk, piece; 3627 3628 chunk = bit >> 5; 3629 piece = bit % (sizeof(uint32_t) * 8); 3630 3631 if ((mask[chunk] & (1 << piece)) == 0) 3632 return (-1); 3633 else 3634 mask[chunk] &= ~(1 << piece); 3635 3636 return (0); 3637} 3638 3639int 3640ctl_is_set(uint32_t *mask, uint32_t bit) 3641{ 3642 uint32_t chunk, piece; 3643 3644 chunk = bit >> 5; 3645 piece = bit % (sizeof(uint32_t) * 8); 3646 3647 if ((mask[chunk] & (1 << piece)) == 0) 3648 return (0); 3649 else 3650 return (1); 3651} 3652 3653#ifdef unused 3654/* 3655 * The bus, target and lun are optional, they can be filled in later. 3656 * can_wait is used to determine whether we can wait on the malloc or not. 3657 */ 3658union ctl_io* 3659ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, uint32_t targ_target, 3660 uint32_t targ_lun, int can_wait) 3661{ 3662 union ctl_io *io; 3663 3664 if (can_wait) 3665 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_WAITOK); 3666 else 3667 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_NOWAIT); 3668 3669 if (io != NULL) { 3670 io->io_hdr.io_type = io_type; 3671 io->io_hdr.targ_port = targ_port; 3672 /* 3673 * XXX KDM this needs to change/go away. We need to move 3674 * to a preallocated pool of ctl_scsiio structures. 3675 */ 3676 io->io_hdr.nexus.targ_target.id = targ_target; 3677 io->io_hdr.nexus.targ_lun = targ_lun; 3678 } 3679 3680 return (io); 3681} 3682 3683void 3684ctl_kfree_io(union ctl_io *io) 3685{ 3686 free(io, M_CTL); 3687} 3688#endif /* unused */ 3689 3690/* 3691 * ctl_softc, pool_name, total_ctl_io are passed in. 3692 * npool is passed out. 3693 */ 3694int 3695ctl_pool_create(struct ctl_softc *ctl_softc, const char *pool_name, 3696 uint32_t total_ctl_io, void **npool) 3697{ 3698#ifdef IO_POOLS 3699 struct ctl_io_pool *pool; 3700 3701 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3702 M_NOWAIT | M_ZERO); 3703 if (pool == NULL) 3704 return (ENOMEM); 3705 3706 snprintf(pool->name, sizeof(pool->name), "CTL IO %s", pool_name); 3707 pool->ctl_softc = ctl_softc; 3708 pool->zone = uma_zsecond_create(pool->name, NULL, 3709 NULL, NULL, NULL, ctl_softc->io_zone); 3710 /* uma_prealloc(pool->zone, total_ctl_io); */ 3711 3712 *npool = pool; 3713#else 3714 *npool = ctl_softc->io_zone; 3715#endif 3716 return (0); 3717} 3718 3719void 3720ctl_pool_free(struct ctl_io_pool *pool) 3721{ 3722 3723 if (pool == NULL) 3724 return; 3725 3726#ifdef IO_POOLS 3727 uma_zdestroy(pool->zone); 3728 free(pool, M_CTL); 3729#endif 3730} 3731 3732union ctl_io * 3733ctl_alloc_io(void *pool_ref) 3734{ 3735 union ctl_io *io; 3736#ifdef IO_POOLS 3737 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3738 3739 io = uma_zalloc(pool->zone, M_WAITOK); 3740#else 3741 io = uma_zalloc((uma_zone_t)pool_ref, M_WAITOK); 3742#endif 3743 if (io != NULL) 3744 io->io_hdr.pool = pool_ref; 3745 return (io); 3746} 3747 3748union ctl_io * 3749ctl_alloc_io_nowait(void *pool_ref) 3750{ 3751 union ctl_io *io; 3752#ifdef IO_POOLS 3753 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3754 3755 io = uma_zalloc(pool->zone, M_NOWAIT); 3756#else 3757 io = uma_zalloc((uma_zone_t)pool_ref, M_NOWAIT); 3758#endif 3759 if (io != NULL) 3760 io->io_hdr.pool = pool_ref; 3761 return (io); 3762} 3763 3764void 3765ctl_free_io(union ctl_io *io) 3766{ 3767#ifdef IO_POOLS 3768 struct ctl_io_pool *pool; 3769#endif 3770 3771 if (io == NULL) 3772 return; 3773 3774#ifdef IO_POOLS 3775 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3776 uma_zfree(pool->zone, io); 3777#else 3778 uma_zfree((uma_zone_t)io->io_hdr.pool, io); 3779#endif 3780} 3781 3782void 3783ctl_zero_io(union ctl_io *io) 3784{ 3785 void *pool_ref; 3786 3787 if (io == NULL) 3788 return; 3789 3790 /* 3791 * May need to preserve linked list pointers at some point too. 3792 */ 3793 pool_ref = io->io_hdr.pool; 3794 memset(io, 0, sizeof(*io)); 3795 io->io_hdr.pool = pool_ref; 3796} 3797 3798/* 3799 * This routine is currently used for internal copies of ctl_ios that need 3800 * to persist for some reason after we've already returned status to the 3801 * FETD. (Thus the flag set.) 3802 * 3803 * XXX XXX 3804 * Note that this makes a blind copy of all fields in the ctl_io, except 3805 * for the pool reference. This includes any memory that has been 3806 * allocated! That memory will no longer be valid after done has been 3807 * called, so this would be VERY DANGEROUS for command that actually does 3808 * any reads or writes. Right now (11/7/2005), this is only used for immediate 3809 * start and stop commands, which don't transfer any data, so this is not a 3810 * problem. If it is used for anything else, the caller would also need to 3811 * allocate data buffer space and this routine would need to be modified to 3812 * copy the data buffer(s) as well. 3813 */ 3814void 3815ctl_copy_io(union ctl_io *src, union ctl_io *dest) 3816{ 3817 void *pool_ref; 3818 3819 if ((src == NULL) 3820 || (dest == NULL)) 3821 return; 3822 3823 /* 3824 * May need to preserve linked list pointers at some point too. 3825 */ 3826 pool_ref = dest->io_hdr.pool; 3827 3828 memcpy(dest, src, ctl_min(sizeof(*src), sizeof(*dest))); 3829 3830 dest->io_hdr.pool = pool_ref; 3831 /* 3832 * We need to know that this is an internal copy, and doesn't need 3833 * to get passed back to the FETD that allocated it. 3834 */ 3835 dest->io_hdr.flags |= CTL_FLAG_INT_COPY; 3836} 3837 3838static int 3839ctl_expand_number(const char *buf, uint64_t *num) 3840{ 3841 char *endptr; 3842 uint64_t number; 3843 unsigned shift; 3844 3845 number = strtoq(buf, &endptr, 0); 3846 3847 switch (tolower((unsigned char)*endptr)) { 3848 case 'e': 3849 shift = 60; 3850 break; 3851 case 'p': 3852 shift = 50; 3853 break; 3854 case 't': 3855 shift = 40; 3856 break; 3857 case 'g': 3858 shift = 30; 3859 break; 3860 case 'm': 3861 shift = 20; 3862 break; 3863 case 'k': 3864 shift = 10; 3865 break; 3866 case 'b': 3867 case '\0': /* No unit. */ 3868 *num = number; 3869 return (0); 3870 default: 3871 /* Unrecognized unit. */ 3872 return (-1); 3873 } 3874 3875 if ((number << shift) >> shift != number) { 3876 /* Overflow */ 3877 return (-1); 3878 } 3879 *num = number << shift; 3880 return (0); 3881} 3882 3883 3884/* 3885 * This routine could be used in the future to load default and/or saved 3886 * mode page parameters for a particuar lun. 3887 */ 3888static int 3889ctl_init_page_index(struct ctl_lun *lun) 3890{ 3891 int i; 3892 struct ctl_page_index *page_index; 3893 const char *value; 3894 uint64_t ival; 3895 3896 memcpy(&lun->mode_pages.index, page_index_template, 3897 sizeof(page_index_template)); 3898 3899 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 3900 3901 page_index = &lun->mode_pages.index[i]; 3902 /* 3903 * If this is a disk-only mode page, there's no point in 3904 * setting it up. For some pages, we have to have some 3905 * basic information about the disk in order to calculate the 3906 * mode page data. 3907 */ 3908 if ((lun->be_lun->lun_type != T_DIRECT) 3909 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 3910 continue; 3911 3912 switch (page_index->page_code & SMPH_PC_MASK) { 3913 case SMS_RW_ERROR_RECOVERY_PAGE: { 3914 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3915 panic("subpage is incorrect!"); 3916 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT], 3917 &rw_er_page_default, 3918 sizeof(rw_er_page_default)); 3919 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CHANGEABLE], 3920 &rw_er_page_changeable, 3921 sizeof(rw_er_page_changeable)); 3922 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_DEFAULT], 3923 &rw_er_page_default, 3924 sizeof(rw_er_page_default)); 3925 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_SAVED], 3926 &rw_er_page_default, 3927 sizeof(rw_er_page_default)); 3928 page_index->page_data = 3929 (uint8_t *)lun->mode_pages.rw_er_page; 3930 break; 3931 } 3932 case SMS_FORMAT_DEVICE_PAGE: { 3933 struct scsi_format_page *format_page; 3934 3935 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3936 panic("subpage is incorrect!"); 3937 3938 /* 3939 * Sectors per track are set above. Bytes per 3940 * sector need to be set here on a per-LUN basis. 3941 */ 3942 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 3943 &format_page_default, 3944 sizeof(format_page_default)); 3945 memcpy(&lun->mode_pages.format_page[ 3946 CTL_PAGE_CHANGEABLE], &format_page_changeable, 3947 sizeof(format_page_changeable)); 3948 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 3949 &format_page_default, 3950 sizeof(format_page_default)); 3951 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 3952 &format_page_default, 3953 sizeof(format_page_default)); 3954 3955 format_page = &lun->mode_pages.format_page[ 3956 CTL_PAGE_CURRENT]; 3957 scsi_ulto2b(lun->be_lun->blocksize, 3958 format_page->bytes_per_sector); 3959 3960 format_page = &lun->mode_pages.format_page[ 3961 CTL_PAGE_DEFAULT]; 3962 scsi_ulto2b(lun->be_lun->blocksize, 3963 format_page->bytes_per_sector); 3964 3965 format_page = &lun->mode_pages.format_page[ 3966 CTL_PAGE_SAVED]; 3967 scsi_ulto2b(lun->be_lun->blocksize, 3968 format_page->bytes_per_sector); 3969 3970 page_index->page_data = 3971 (uint8_t *)lun->mode_pages.format_page; 3972 break; 3973 } 3974 case SMS_RIGID_DISK_PAGE: { 3975 struct scsi_rigid_disk_page *rigid_disk_page; 3976 uint32_t sectors_per_cylinder; 3977 uint64_t cylinders; 3978#ifndef __XSCALE__ 3979 int shift; 3980#endif /* !__XSCALE__ */ 3981 3982 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3983 panic("invalid subpage value %d", 3984 page_index->subpage); 3985 3986 /* 3987 * Rotation rate and sectors per track are set 3988 * above. We calculate the cylinders here based on 3989 * capacity. Due to the number of heads and 3990 * sectors per track we're using, smaller arrays 3991 * may turn out to have 0 cylinders. Linux and 3992 * FreeBSD don't pay attention to these mode pages 3993 * to figure out capacity, but Solaris does. It 3994 * seems to deal with 0 cylinders just fine, and 3995 * works out a fake geometry based on the capacity. 3996 */ 3997 memcpy(&lun->mode_pages.rigid_disk_page[ 3998 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 3999 sizeof(rigid_disk_page_default)); 4000 memcpy(&lun->mode_pages.rigid_disk_page[ 4001 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4002 sizeof(rigid_disk_page_changeable)); 4003 4004 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4005 CTL_DEFAULT_HEADS; 4006 4007 /* 4008 * The divide method here will be more accurate, 4009 * probably, but results in floating point being 4010 * used in the kernel on i386 (__udivdi3()). On the 4011 * XScale, though, __udivdi3() is implemented in 4012 * software. 4013 * 4014 * The shift method for cylinder calculation is 4015 * accurate if sectors_per_cylinder is a power of 4016 * 2. Otherwise it might be slightly off -- you 4017 * might have a bit of a truncation problem. 4018 */ 4019#ifdef __XSCALE__ 4020 cylinders = (lun->be_lun->maxlba + 1) / 4021 sectors_per_cylinder; 4022#else 4023 for (shift = 31; shift > 0; shift--) { 4024 if (sectors_per_cylinder & (1 << shift)) 4025 break; 4026 } 4027 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4028#endif 4029 4030 /* 4031 * We've basically got 3 bytes, or 24 bits for the 4032 * cylinder size in the mode page. If we're over, 4033 * just round down to 2^24. 4034 */ 4035 if (cylinders > 0xffffff) 4036 cylinders = 0xffffff; 4037 4038 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4039 CTL_PAGE_DEFAULT]; 4040 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4041 4042 if ((value = ctl_get_opt(&lun->be_lun->options, 4043 "rpm")) != NULL) { 4044 scsi_ulto2b(strtol(value, NULL, 0), 4045 rigid_disk_page->rotation_rate); 4046 } 4047 4048 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_CURRENT], 4049 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4050 sizeof(rigid_disk_page_default)); 4051 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_SAVED], 4052 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4053 sizeof(rigid_disk_page_default)); 4054 4055 page_index->page_data = 4056 (uint8_t *)lun->mode_pages.rigid_disk_page; 4057 break; 4058 } 4059 case SMS_CACHING_PAGE: { 4060 struct scsi_caching_page *caching_page; 4061 4062 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4063 panic("invalid subpage value %d", 4064 page_index->subpage); 4065 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4066 &caching_page_default, 4067 sizeof(caching_page_default)); 4068 memcpy(&lun->mode_pages.caching_page[ 4069 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4070 sizeof(caching_page_changeable)); 4071 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4072 &caching_page_default, 4073 sizeof(caching_page_default)); 4074 caching_page = &lun->mode_pages.caching_page[ 4075 CTL_PAGE_SAVED]; 4076 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4077 if (value != NULL && strcmp(value, "off") == 0) 4078 caching_page->flags1 &= ~SCP_WCE; 4079 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4080 if (value != NULL && strcmp(value, "off") == 0) 4081 caching_page->flags1 |= SCP_RCD; 4082 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4083 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4084 sizeof(caching_page_default)); 4085 page_index->page_data = 4086 (uint8_t *)lun->mode_pages.caching_page; 4087 break; 4088 } 4089 case SMS_CONTROL_MODE_PAGE: { 4090 struct scsi_control_page *control_page; 4091 4092 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4093 panic("invalid subpage value %d", 4094 page_index->subpage); 4095 4096 memcpy(&lun->mode_pages.control_page[CTL_PAGE_DEFAULT], 4097 &control_page_default, 4098 sizeof(control_page_default)); 4099 memcpy(&lun->mode_pages.control_page[ 4100 CTL_PAGE_CHANGEABLE], &control_page_changeable, 4101 sizeof(control_page_changeable)); 4102 memcpy(&lun->mode_pages.control_page[CTL_PAGE_SAVED], 4103 &control_page_default, 4104 sizeof(control_page_default)); 4105 control_page = &lun->mode_pages.control_page[ 4106 CTL_PAGE_SAVED]; 4107 value = ctl_get_opt(&lun->be_lun->options, "reordering"); 4108 if (value != NULL && strcmp(value, "unrestricted") == 0) { 4109 control_page->queue_flags &= ~SCP_QUEUE_ALG_MASK; 4110 control_page->queue_flags |= SCP_QUEUE_ALG_UNRESTRICTED; 4111 } 4112 memcpy(&lun->mode_pages.control_page[CTL_PAGE_CURRENT], 4113 &lun->mode_pages.control_page[CTL_PAGE_SAVED], 4114 sizeof(control_page_default)); 4115 page_index->page_data = 4116 (uint8_t *)lun->mode_pages.control_page; 4117 break; 4118 4119 } 4120 case SMS_INFO_EXCEPTIONS_PAGE: { 4121 switch (page_index->subpage) { 4122 case SMS_SUBPAGE_PAGE_0: 4123 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_CURRENT], 4124 &ie_page_default, 4125 sizeof(ie_page_default)); 4126 memcpy(&lun->mode_pages.ie_page[ 4127 CTL_PAGE_CHANGEABLE], &ie_page_changeable, 4128 sizeof(ie_page_changeable)); 4129 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_DEFAULT], 4130 &ie_page_default, 4131 sizeof(ie_page_default)); 4132 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_SAVED], 4133 &ie_page_default, 4134 sizeof(ie_page_default)); 4135 page_index->page_data = 4136 (uint8_t *)lun->mode_pages.ie_page; 4137 break; 4138 case 0x02: { 4139 struct ctl_logical_block_provisioning_page *page; 4140 4141 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_DEFAULT], 4142 &lbp_page_default, 4143 sizeof(lbp_page_default)); 4144 memcpy(&lun->mode_pages.lbp_page[ 4145 CTL_PAGE_CHANGEABLE], &lbp_page_changeable, 4146 sizeof(lbp_page_changeable)); 4147 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4148 &lbp_page_default, 4149 sizeof(lbp_page_default)); 4150 page = &lun->mode_pages.lbp_page[CTL_PAGE_SAVED]; 4151 value = ctl_get_opt(&lun->be_lun->options, 4152 "avail-threshold"); 4153 if (value != NULL && 4154 ctl_expand_number(value, &ival) == 0) { 4155 page->descr[0].flags |= SLBPPD_ENABLED | 4156 SLBPPD_ARMING_DEC; 4157 if (lun->be_lun->blocksize) 4158 ival /= lun->be_lun->blocksize; 4159 else 4160 ival /= 512; 4161 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4162 page->descr[0].count); 4163 } 4164 value = ctl_get_opt(&lun->be_lun->options, 4165 "used-threshold"); 4166 if (value != NULL && 4167 ctl_expand_number(value, &ival) == 0) { 4168 page->descr[1].flags |= SLBPPD_ENABLED | 4169 SLBPPD_ARMING_INC; 4170 if (lun->be_lun->blocksize) 4171 ival /= lun->be_lun->blocksize; 4172 else 4173 ival /= 512; 4174 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4175 page->descr[1].count); 4176 } 4177 value = ctl_get_opt(&lun->be_lun->options, 4178 "pool-avail-threshold"); 4179 if (value != NULL && 4180 ctl_expand_number(value, &ival) == 0) { 4181 page->descr[2].flags |= SLBPPD_ENABLED | 4182 SLBPPD_ARMING_DEC; 4183 if (lun->be_lun->blocksize) 4184 ival /= lun->be_lun->blocksize; 4185 else 4186 ival /= 512; 4187 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4188 page->descr[2].count); 4189 } 4190 value = ctl_get_opt(&lun->be_lun->options, 4191 "pool-used-threshold"); 4192 if (value != NULL && 4193 ctl_expand_number(value, &ival) == 0) { 4194 page->descr[3].flags |= SLBPPD_ENABLED | 4195 SLBPPD_ARMING_INC; 4196 if (lun->be_lun->blocksize) 4197 ival /= lun->be_lun->blocksize; 4198 else 4199 ival /= 512; 4200 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4201 page->descr[3].count); 4202 } 4203 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_CURRENT], 4204 &lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4205 sizeof(lbp_page_default)); 4206 page_index->page_data = 4207 (uint8_t *)lun->mode_pages.lbp_page; 4208 }} 4209 break; 4210 } 4211 case SMS_VENDOR_SPECIFIC_PAGE:{ 4212 switch (page_index->subpage) { 4213 case DBGCNF_SUBPAGE_CODE: { 4214 struct copan_debugconf_subpage *current_page, 4215 *saved_page; 4216 4217 memcpy(&lun->mode_pages.debugconf_subpage[ 4218 CTL_PAGE_CURRENT], 4219 &debugconf_page_default, 4220 sizeof(debugconf_page_default)); 4221 memcpy(&lun->mode_pages.debugconf_subpage[ 4222 CTL_PAGE_CHANGEABLE], 4223 &debugconf_page_changeable, 4224 sizeof(debugconf_page_changeable)); 4225 memcpy(&lun->mode_pages.debugconf_subpage[ 4226 CTL_PAGE_DEFAULT], 4227 &debugconf_page_default, 4228 sizeof(debugconf_page_default)); 4229 memcpy(&lun->mode_pages.debugconf_subpage[ 4230 CTL_PAGE_SAVED], 4231 &debugconf_page_default, 4232 sizeof(debugconf_page_default)); 4233 page_index->page_data = 4234 (uint8_t *)lun->mode_pages.debugconf_subpage; 4235 4236 current_page = (struct copan_debugconf_subpage *) 4237 (page_index->page_data + 4238 (page_index->page_len * 4239 CTL_PAGE_CURRENT)); 4240 saved_page = (struct copan_debugconf_subpage *) 4241 (page_index->page_data + 4242 (page_index->page_len * 4243 CTL_PAGE_SAVED)); 4244 break; 4245 } 4246 default: 4247 panic("invalid subpage value %d", 4248 page_index->subpage); 4249 break; 4250 } 4251 break; 4252 } 4253 default: 4254 panic("invalid page value %d", 4255 page_index->page_code & SMPH_PC_MASK); 4256 break; 4257 } 4258 } 4259 4260 return (CTL_RETVAL_COMPLETE); 4261} 4262 4263static int 4264ctl_init_log_page_index(struct ctl_lun *lun) 4265{ 4266 struct ctl_page_index *page_index; 4267 int i, j, k, prev; 4268 4269 memcpy(&lun->log_pages.index, log_page_index_template, 4270 sizeof(log_page_index_template)); 4271 4272 prev = -1; 4273 for (i = 0, j = 0, k = 0; i < CTL_NUM_LOG_PAGES; i++) { 4274 4275 page_index = &lun->log_pages.index[i]; 4276 /* 4277 * If this is a disk-only mode page, there's no point in 4278 * setting it up. For some pages, we have to have some 4279 * basic information about the disk in order to calculate the 4280 * mode page data. 4281 */ 4282 if ((lun->be_lun->lun_type != T_DIRECT) 4283 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 4284 continue; 4285 4286 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING && 4287 ((lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) == 0 || 4288 lun->backend->lun_attr == NULL)) 4289 continue; 4290 4291 if (page_index->page_code != prev) { 4292 lun->log_pages.pages_page[j] = page_index->page_code; 4293 prev = page_index->page_code; 4294 j++; 4295 } 4296 lun->log_pages.subpages_page[k*2] = page_index->page_code; 4297 lun->log_pages.subpages_page[k*2+1] = page_index->subpage; 4298 k++; 4299 } 4300 lun->log_pages.index[0].page_data = &lun->log_pages.pages_page[0]; 4301 lun->log_pages.index[0].page_len = j; 4302 lun->log_pages.index[1].page_data = &lun->log_pages.subpages_page[0]; 4303 lun->log_pages.index[1].page_len = k * 2; 4304 lun->log_pages.index[2].page_data = &lun->log_pages.lbp_page[0]; 4305 lun->log_pages.index[2].page_len = 12*CTL_NUM_LBP_PARAMS; 4306 4307 return (CTL_RETVAL_COMPLETE); 4308} 4309 4310static int 4311hex2bin(const char *str, uint8_t *buf, int buf_size) 4312{ 4313 int i; 4314 u_char c; 4315 4316 memset(buf, 0, buf_size); 4317 while (isspace(str[0])) 4318 str++; 4319 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) 4320 str += 2; 4321 buf_size *= 2; 4322 for (i = 0; str[i] != 0 && i < buf_size; i++) { 4323 c = str[i]; 4324 if (isdigit(c)) 4325 c -= '0'; 4326 else if (isalpha(c)) 4327 c -= isupper(c) ? 'A' - 10 : 'a' - 10; 4328 else 4329 break; 4330 if (c >= 16) 4331 break; 4332 if ((i & 1) == 0) 4333 buf[i / 2] |= (c << 4); 4334 else 4335 buf[i / 2] |= c; 4336 } 4337 return ((i + 1) / 2); 4338} 4339 4340/* 4341 * LUN allocation. 4342 * 4343 * Requirements: 4344 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4345 * wants us to allocate the LUN and he can block. 4346 * - ctl_softc is always set 4347 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4348 * 4349 * Returns 0 for success, non-zero (errno) for failure. 4350 */ 4351static int 4352ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4353 struct ctl_be_lun *const be_lun, struct ctl_id target_id) 4354{ 4355 struct ctl_lun *nlun, *lun; 4356 struct ctl_port *port; 4357 struct scsi_vpd_id_descriptor *desc; 4358 struct scsi_vpd_id_t10 *t10id; 4359 const char *eui, *naa, *scsiname, *vendor, *value; 4360 int lun_number, i, lun_malloced; 4361 int devidlen, idlen1, idlen2 = 0, len; 4362 4363 if (be_lun == NULL) 4364 return (EINVAL); 4365 4366 /* 4367 * We currently only support Direct Access or Processor LUN types. 4368 */ 4369 switch (be_lun->lun_type) { 4370 case T_DIRECT: 4371 break; 4372 case T_PROCESSOR: 4373 break; 4374 case T_SEQUENTIAL: 4375 case T_CHANGER: 4376 default: 4377 be_lun->lun_config_status(be_lun->be_lun, 4378 CTL_LUN_CONFIG_FAILURE); 4379 break; 4380 } 4381 if (ctl_lun == NULL) { 4382 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4383 lun_malloced = 1; 4384 } else { 4385 lun_malloced = 0; 4386 lun = ctl_lun; 4387 } 4388 4389 memset(lun, 0, sizeof(*lun)); 4390 if (lun_malloced) 4391 lun->flags = CTL_LUN_MALLOCED; 4392 4393 /* Generate LUN ID. */ 4394 devidlen = max(CTL_DEVID_MIN_LEN, 4395 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4396 idlen1 = sizeof(*t10id) + devidlen; 4397 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4398 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4399 if (scsiname != NULL) { 4400 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4401 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4402 } 4403 eui = ctl_get_opt(&be_lun->options, "eui"); 4404 if (eui != NULL) { 4405 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4406 } 4407 naa = ctl_get_opt(&be_lun->options, "naa"); 4408 if (naa != NULL) { 4409 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4410 } 4411 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4412 M_CTL, M_WAITOK | M_ZERO); 4413 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4414 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4415 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4416 desc->length = idlen1; 4417 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4418 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4419 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4420 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4421 } else { 4422 strncpy(t10id->vendor, vendor, 4423 min(sizeof(t10id->vendor), strlen(vendor))); 4424 } 4425 strncpy((char *)t10id->vendor_spec_id, 4426 (char *)be_lun->device_id, devidlen); 4427 if (scsiname != NULL) { 4428 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4429 desc->length); 4430 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4431 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4432 SVPD_ID_TYPE_SCSI_NAME; 4433 desc->length = idlen2; 4434 strlcpy(desc->identifier, scsiname, idlen2); 4435 } 4436 if (eui != NULL) { 4437 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4438 desc->length); 4439 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4440 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4441 SVPD_ID_TYPE_EUI64; 4442 desc->length = hex2bin(eui, desc->identifier, 16); 4443 desc->length = desc->length > 12 ? 16 : 4444 (desc->length > 8 ? 12 : 8); 4445 len -= 16 - desc->length; 4446 } 4447 if (naa != NULL) { 4448 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4449 desc->length); 4450 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4451 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4452 SVPD_ID_TYPE_NAA; 4453 desc->length = hex2bin(naa, desc->identifier, 16); 4454 desc->length = desc->length > 8 ? 16 : 8; 4455 len -= 16 - desc->length; 4456 } 4457 lun->lun_devid->len = len; 4458 4459 mtx_lock(&ctl_softc->ctl_lock); 4460 /* 4461 * See if the caller requested a particular LUN number. If so, see 4462 * if it is available. Otherwise, allocate the first available LUN. 4463 */ 4464 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4465 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4466 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4467 mtx_unlock(&ctl_softc->ctl_lock); 4468 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4469 printf("ctl: requested LUN ID %d is higher " 4470 "than CTL_MAX_LUNS - 1 (%d)\n", 4471 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4472 } else { 4473 /* 4474 * XXX KDM return an error, or just assign 4475 * another LUN ID in this case?? 4476 */ 4477 printf("ctl: requested LUN ID %d is already " 4478 "in use\n", be_lun->req_lun_id); 4479 } 4480 if (lun->flags & CTL_LUN_MALLOCED) 4481 free(lun, M_CTL); 4482 be_lun->lun_config_status(be_lun->be_lun, 4483 CTL_LUN_CONFIG_FAILURE); 4484 return (ENOSPC); 4485 } 4486 lun_number = be_lun->req_lun_id; 4487 } else { 4488 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, CTL_MAX_LUNS); 4489 if (lun_number == -1) { 4490 mtx_unlock(&ctl_softc->ctl_lock); 4491 printf("ctl: can't allocate LUN on target %ju, out of " 4492 "LUNs\n", (uintmax_t)target_id.id); 4493 if (lun->flags & CTL_LUN_MALLOCED) 4494 free(lun, M_CTL); 4495 be_lun->lun_config_status(be_lun->be_lun, 4496 CTL_LUN_CONFIG_FAILURE); 4497 return (ENOSPC); 4498 } 4499 } 4500 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4501 4502 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4503 lun->target = target_id; 4504 lun->lun = lun_number; 4505 lun->be_lun = be_lun; 4506 /* 4507 * The processor LUN is always enabled. Disk LUNs come on line 4508 * disabled, and must be enabled by the backend. 4509 */ 4510 lun->flags |= CTL_LUN_DISABLED; 4511 lun->backend = be_lun->be; 4512 be_lun->ctl_lun = lun; 4513 be_lun->lun_id = lun_number; 4514 atomic_add_int(&be_lun->be->num_luns, 1); 4515 if (be_lun->flags & CTL_LUN_FLAG_OFFLINE) 4516 lun->flags |= CTL_LUN_OFFLINE; 4517 4518 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4519 lun->flags |= CTL_LUN_STOPPED; 4520 4521 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4522 lun->flags |= CTL_LUN_INOPERABLE; 4523 4524 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4525 lun->flags |= CTL_LUN_PRIMARY_SC; 4526 4527 value = ctl_get_opt(&be_lun->options, "readonly"); 4528 if (value != NULL && strcmp(value, "on") == 0) 4529 lun->flags |= CTL_LUN_READONLY; 4530 4531 lun->ctl_softc = ctl_softc; 4532 TAILQ_INIT(&lun->ooa_queue); 4533 TAILQ_INIT(&lun->blocked_queue); 4534 STAILQ_INIT(&lun->error_list); 4535 ctl_tpc_lun_init(lun); 4536 4537 /* 4538 * Initialize the mode and log page index. 4539 */ 4540 ctl_init_page_index(lun); 4541 ctl_init_log_page_index(lun); 4542 4543 /* 4544 * Set the poweron UA for all initiators on this LUN only. 4545 */ 4546 for (i = 0; i < CTL_MAX_INITIATORS; i++) 4547 lun->pending_ua[i] = CTL_UA_POWERON; 4548 4549 /* 4550 * Now, before we insert this lun on the lun list, set the lun 4551 * inventory changed UA for all other luns. 4552 */ 4553 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4554 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4555 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4556 } 4557 } 4558 4559 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4560 4561 ctl_softc->ctl_luns[lun_number] = lun; 4562 4563 ctl_softc->num_luns++; 4564 4565 /* Setup statistics gathering */ 4566 lun->stats.device_type = be_lun->lun_type; 4567 lun->stats.lun_number = lun_number; 4568 if (lun->stats.device_type == T_DIRECT) 4569 lun->stats.blocksize = be_lun->blocksize; 4570 else 4571 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4572 for (i = 0;i < CTL_MAX_PORTS;i++) 4573 lun->stats.ports[i].targ_port = i; 4574 4575 mtx_unlock(&ctl_softc->ctl_lock); 4576 4577 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4578 4579 /* 4580 * Run through each registered FETD and bring it online if it isn't 4581 * already. Enable the target ID if it hasn't been enabled, and 4582 * enable this particular LUN. 4583 */ 4584 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4585 int retval; 4586 4587 retval = port->lun_enable(port->targ_lun_arg, target_id,lun_number); 4588 if (retval != 0) { 4589 printf("ctl_alloc_lun: FETD %s port %d returned error " 4590 "%d for lun_enable on target %ju lun %d\n", 4591 port->port_name, port->targ_port, retval, 4592 (uintmax_t)target_id.id, lun_number); 4593 } else 4594 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4595 } 4596 return (0); 4597} 4598 4599/* 4600 * Delete a LUN. 4601 * Assumptions: 4602 * - LUN has already been marked invalid and any pending I/O has been taken 4603 * care of. 4604 */ 4605static int 4606ctl_free_lun(struct ctl_lun *lun) 4607{ 4608 struct ctl_softc *softc; 4609#if 0 4610 struct ctl_port *port; 4611#endif 4612 struct ctl_lun *nlun; 4613 int i; 4614 4615 softc = lun->ctl_softc; 4616 4617 mtx_assert(&softc->ctl_lock, MA_OWNED); 4618 4619 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4620 4621 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4622 4623 softc->ctl_luns[lun->lun] = NULL; 4624 4625 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4626 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4627 4628 softc->num_luns--; 4629 4630 /* 4631 * XXX KDM this scheme only works for a single target/multiple LUN 4632 * setup. It needs to be revamped for a multiple target scheme. 4633 * 4634 * XXX KDM this results in port->lun_disable() getting called twice, 4635 * once when ctl_disable_lun() is called, and a second time here. 4636 * We really need to re-think the LUN disable semantics. There 4637 * should probably be several steps/levels to LUN removal: 4638 * - disable 4639 * - invalidate 4640 * - free 4641 * 4642 * Right now we only have a disable method when communicating to 4643 * the front end ports, at least for individual LUNs. 4644 */ 4645#if 0 4646 STAILQ_FOREACH(port, &softc->port_list, links) { 4647 int retval; 4648 4649 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4650 lun->lun); 4651 if (retval != 0) { 4652 printf("ctl_free_lun: FETD %s port %d returned error " 4653 "%d for lun_disable on target %ju lun %jd\n", 4654 port->port_name, port->targ_port, retval, 4655 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4656 } 4657 4658 if (STAILQ_FIRST(&softc->lun_list) == NULL) { 4659 port->status &= ~CTL_PORT_STATUS_LUN_ONLINE; 4660 4661 retval = port->targ_disable(port->targ_lun_arg,lun->target); 4662 if (retval != 0) { 4663 printf("ctl_free_lun: FETD %s port %d " 4664 "returned error %d for targ_disable on " 4665 "target %ju\n", port->port_name, 4666 port->targ_port, retval, 4667 (uintmax_t)lun->target.id); 4668 } else 4669 port->status &= ~CTL_PORT_STATUS_TARG_ONLINE; 4670 4671 if ((port->status & CTL_PORT_STATUS_TARG_ONLINE) != 0) 4672 continue; 4673 4674#if 0 4675 port->port_offline(port->onoff_arg); 4676 port->status &= ~CTL_PORT_STATUS_ONLINE; 4677#endif 4678 } 4679 } 4680#endif 4681 4682 /* 4683 * Tell the backend to free resources, if this LUN has a backend. 4684 */ 4685 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4686 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4687 4688 ctl_tpc_lun_shutdown(lun); 4689 mtx_destroy(&lun->lun_lock); 4690 free(lun->lun_devid, M_CTL); 4691 free(lun->write_buffer, M_CTL); 4692 if (lun->flags & CTL_LUN_MALLOCED) 4693 free(lun, M_CTL); 4694 4695 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4696 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4697 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4698 } 4699 } 4700 4701 return (0); 4702} 4703 4704static void 4705ctl_create_lun(struct ctl_be_lun *be_lun) 4706{ 4707 struct ctl_softc *ctl_softc; 4708 4709 ctl_softc = control_softc; 4710 4711 /* 4712 * ctl_alloc_lun() should handle all potential failure cases. 4713 */ 4714 ctl_alloc_lun(ctl_softc, NULL, be_lun, ctl_softc->target); 4715} 4716 4717int 4718ctl_add_lun(struct ctl_be_lun *be_lun) 4719{ 4720 struct ctl_softc *ctl_softc = control_softc; 4721 4722 mtx_lock(&ctl_softc->ctl_lock); 4723 STAILQ_INSERT_TAIL(&ctl_softc->pending_lun_queue, be_lun, links); 4724 mtx_unlock(&ctl_softc->ctl_lock); 4725 wakeup(&ctl_softc->pending_lun_queue); 4726 4727 return (0); 4728} 4729 4730int 4731ctl_enable_lun(struct ctl_be_lun *be_lun) 4732{ 4733 struct ctl_softc *ctl_softc; 4734 struct ctl_port *port, *nport; 4735 struct ctl_lun *lun; 4736 int retval; 4737 4738 ctl_softc = control_softc; 4739 4740 lun = (struct ctl_lun *)be_lun->ctl_lun; 4741 4742 mtx_lock(&ctl_softc->ctl_lock); 4743 mtx_lock(&lun->lun_lock); 4744 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4745 /* 4746 * eh? Why did we get called if the LUN is already 4747 * enabled? 4748 */ 4749 mtx_unlock(&lun->lun_lock); 4750 mtx_unlock(&ctl_softc->ctl_lock); 4751 return (0); 4752 } 4753 lun->flags &= ~CTL_LUN_DISABLED; 4754 mtx_unlock(&lun->lun_lock); 4755 4756 for (port = STAILQ_FIRST(&ctl_softc->port_list); port != NULL; port = nport) { 4757 nport = STAILQ_NEXT(port, links); 4758 4759 /* 4760 * Drop the lock while we call the FETD's enable routine. 4761 * This can lead to a callback into CTL (at least in the 4762 * case of the internal initiator frontend. 4763 */ 4764 mtx_unlock(&ctl_softc->ctl_lock); 4765 retval = port->lun_enable(port->targ_lun_arg, lun->target,lun->lun); 4766 mtx_lock(&ctl_softc->ctl_lock); 4767 if (retval != 0) { 4768 printf("%s: FETD %s port %d returned error " 4769 "%d for lun_enable on target %ju lun %jd\n", 4770 __func__, port->port_name, port->targ_port, retval, 4771 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4772 } 4773#if 0 4774 else { 4775 /* NOTE: TODO: why does lun enable affect port status? */ 4776 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4777 } 4778#endif 4779 } 4780 4781 mtx_unlock(&ctl_softc->ctl_lock); 4782 4783 return (0); 4784} 4785 4786int 4787ctl_disable_lun(struct ctl_be_lun *be_lun) 4788{ 4789 struct ctl_softc *ctl_softc; 4790 struct ctl_port *port; 4791 struct ctl_lun *lun; 4792 int retval; 4793 4794 ctl_softc = control_softc; 4795 4796 lun = (struct ctl_lun *)be_lun->ctl_lun; 4797 4798 mtx_lock(&ctl_softc->ctl_lock); 4799 mtx_lock(&lun->lun_lock); 4800 if (lun->flags & CTL_LUN_DISABLED) { 4801 mtx_unlock(&lun->lun_lock); 4802 mtx_unlock(&ctl_softc->ctl_lock); 4803 return (0); 4804 } 4805 lun->flags |= CTL_LUN_DISABLED; 4806 mtx_unlock(&lun->lun_lock); 4807 4808 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4809 mtx_unlock(&ctl_softc->ctl_lock); 4810 /* 4811 * Drop the lock before we call the frontend's disable 4812 * routine, to avoid lock order reversals. 4813 * 4814 * XXX KDM what happens if the frontend list changes while 4815 * we're traversing it? It's unlikely, but should be handled. 4816 */ 4817 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4818 lun->lun); 4819 mtx_lock(&ctl_softc->ctl_lock); 4820 if (retval != 0) { 4821 printf("ctl_alloc_lun: FETD %s port %d returned error " 4822 "%d for lun_disable on target %ju lun %jd\n", 4823 port->port_name, port->targ_port, retval, 4824 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4825 } 4826 } 4827 4828 mtx_unlock(&ctl_softc->ctl_lock); 4829 4830 return (0); 4831} 4832 4833int 4834ctl_start_lun(struct ctl_be_lun *be_lun) 4835{ 4836 struct ctl_softc *ctl_softc; 4837 struct ctl_lun *lun; 4838 4839 ctl_softc = control_softc; 4840 4841 lun = (struct ctl_lun *)be_lun->ctl_lun; 4842 4843 mtx_lock(&lun->lun_lock); 4844 lun->flags &= ~CTL_LUN_STOPPED; 4845 mtx_unlock(&lun->lun_lock); 4846 4847 return (0); 4848} 4849 4850int 4851ctl_stop_lun(struct ctl_be_lun *be_lun) 4852{ 4853 struct ctl_softc *ctl_softc; 4854 struct ctl_lun *lun; 4855 4856 ctl_softc = control_softc; 4857 4858 lun = (struct ctl_lun *)be_lun->ctl_lun; 4859 4860 mtx_lock(&lun->lun_lock); 4861 lun->flags |= CTL_LUN_STOPPED; 4862 mtx_unlock(&lun->lun_lock); 4863 4864 return (0); 4865} 4866 4867int 4868ctl_lun_offline(struct ctl_be_lun *be_lun) 4869{ 4870 struct ctl_softc *ctl_softc; 4871 struct ctl_lun *lun; 4872 4873 ctl_softc = control_softc; 4874 4875 lun = (struct ctl_lun *)be_lun->ctl_lun; 4876 4877 mtx_lock(&lun->lun_lock); 4878 lun->flags |= CTL_LUN_OFFLINE; 4879 mtx_unlock(&lun->lun_lock); 4880 4881 return (0); 4882} 4883 4884int 4885ctl_lun_online(struct ctl_be_lun *be_lun) 4886{ 4887 struct ctl_softc *ctl_softc; 4888 struct ctl_lun *lun; 4889 4890 ctl_softc = control_softc; 4891 4892 lun = (struct ctl_lun *)be_lun->ctl_lun; 4893 4894 mtx_lock(&lun->lun_lock); 4895 lun->flags &= ~CTL_LUN_OFFLINE; 4896 mtx_unlock(&lun->lun_lock); 4897 4898 return (0); 4899} 4900 4901int 4902ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4903{ 4904 struct ctl_softc *ctl_softc; 4905 struct ctl_lun *lun; 4906 4907 ctl_softc = control_softc; 4908 4909 lun = (struct ctl_lun *)be_lun->ctl_lun; 4910 4911 mtx_lock(&lun->lun_lock); 4912 4913 /* 4914 * The LUN needs to be disabled before it can be marked invalid. 4915 */ 4916 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4917 mtx_unlock(&lun->lun_lock); 4918 return (-1); 4919 } 4920 /* 4921 * Mark the LUN invalid. 4922 */ 4923 lun->flags |= CTL_LUN_INVALID; 4924 4925 /* 4926 * If there is nothing in the OOA queue, go ahead and free the LUN. 4927 * If we have something in the OOA queue, we'll free it when the 4928 * last I/O completes. 4929 */ 4930 if (TAILQ_EMPTY(&lun->ooa_queue)) { 4931 mtx_unlock(&lun->lun_lock); 4932 mtx_lock(&ctl_softc->ctl_lock); 4933 ctl_free_lun(lun); 4934 mtx_unlock(&ctl_softc->ctl_lock); 4935 } else 4936 mtx_unlock(&lun->lun_lock); 4937 4938 return (0); 4939} 4940 4941int 4942ctl_lun_inoperable(struct ctl_be_lun *be_lun) 4943{ 4944 struct ctl_softc *ctl_softc; 4945 struct ctl_lun *lun; 4946 4947 ctl_softc = control_softc; 4948 lun = (struct ctl_lun *)be_lun->ctl_lun; 4949 4950 mtx_lock(&lun->lun_lock); 4951 lun->flags |= CTL_LUN_INOPERABLE; 4952 mtx_unlock(&lun->lun_lock); 4953 4954 return (0); 4955} 4956 4957int 4958ctl_lun_operable(struct ctl_be_lun *be_lun) 4959{ 4960 struct ctl_softc *ctl_softc; 4961 struct ctl_lun *lun; 4962 4963 ctl_softc = control_softc; 4964 lun = (struct ctl_lun *)be_lun->ctl_lun; 4965 4966 mtx_lock(&lun->lun_lock); 4967 lun->flags &= ~CTL_LUN_INOPERABLE; 4968 mtx_unlock(&lun->lun_lock); 4969 4970 return (0); 4971} 4972 4973void 4974ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 4975{ 4976 struct ctl_lun *lun; 4977 struct ctl_softc *softc; 4978 int i; 4979 4980 softc = control_softc; 4981 4982 lun = (struct ctl_lun *)be_lun->ctl_lun; 4983 4984 mtx_lock(&lun->lun_lock); 4985 4986 for (i = 0; i < CTL_MAX_INITIATORS; i++) 4987 lun->pending_ua[i] |= CTL_UA_CAPACITY_CHANGED; 4988 4989 mtx_unlock(&lun->lun_lock); 4990} 4991 4992/* 4993 * Backend "memory move is complete" callback for requests that never 4994 * make it down to say RAIDCore's configuration code. 4995 */ 4996int 4997ctl_config_move_done(union ctl_io *io) 4998{ 4999 int retval; 5000 5001 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 5002 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI, 5003 ("Config I/O type isn't CTL_IO_SCSI (%d)!", io->io_hdr.io_type)); 5004 5005 if ((io->io_hdr.port_status != 0) && 5006 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5007 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5008 /* 5009 * For hardware error sense keys, the sense key 5010 * specific value is defined to be a retry count, 5011 * but we use it to pass back an internal FETD 5012 * error code. XXX KDM Hopefully the FETD is only 5013 * using 16 bits for an error code, since that's 5014 * all the space we have in the sks field. 5015 */ 5016 ctl_set_internal_failure(&io->scsiio, 5017 /*sks_valid*/ 1, 5018 /*retry_count*/ 5019 io->io_hdr.port_status); 5020 } 5021 5022 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) || 5023 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5024 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) || 5025 ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5026 /* 5027 * XXX KDM just assuming a single pointer here, and not a 5028 * S/G list. If we start using S/G lists for config data, 5029 * we'll need to know how to clean them up here as well. 5030 */ 5031 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5032 free(io->scsiio.kern_data_ptr, M_CTL); 5033 ctl_done(io); 5034 retval = CTL_RETVAL_COMPLETE; 5035 } else { 5036 /* 5037 * XXX KDM now we need to continue data movement. Some 5038 * options: 5039 * - call ctl_scsiio() again? We don't do this for data 5040 * writes, because for those at least we know ahead of 5041 * time where the write will go and how long it is. For 5042 * config writes, though, that information is largely 5043 * contained within the write itself, thus we need to 5044 * parse out the data again. 5045 * 5046 * - Call some other function once the data is in? 5047 */ 5048 if (ctl_debug & CTL_DEBUG_CDB_DATA) 5049 ctl_data_print(io); 5050 5051 /* 5052 * XXX KDM call ctl_scsiio() again for now, and check flag 5053 * bits to see whether we're allocated or not. 5054 */ 5055 retval = ctl_scsiio(&io->scsiio); 5056 } 5057 return (retval); 5058} 5059 5060/* 5061 * This gets called by a backend driver when it is done with a 5062 * data_submit method. 5063 */ 5064void 5065ctl_data_submit_done(union ctl_io *io) 5066{ 5067 /* 5068 * If the IO_CONT flag is set, we need to call the supplied 5069 * function to continue processing the I/O, instead of completing 5070 * the I/O just yet. 5071 * 5072 * If there is an error, though, we don't want to keep processing. 5073 * Instead, just send status back to the initiator. 5074 */ 5075 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5076 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5077 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5078 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5079 io->scsiio.io_cont(io); 5080 return; 5081 } 5082 ctl_done(io); 5083} 5084 5085/* 5086 * This gets called by a backend driver when it is done with a 5087 * configuration write. 5088 */ 5089void 5090ctl_config_write_done(union ctl_io *io) 5091{ 5092 uint8_t *buf; 5093 5094 /* 5095 * If the IO_CONT flag is set, we need to call the supplied 5096 * function to continue processing the I/O, instead of completing 5097 * the I/O just yet. 5098 * 5099 * If there is an error, though, we don't want to keep processing. 5100 * Instead, just send status back to the initiator. 5101 */ 5102 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5103 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5104 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5105 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5106 io->scsiio.io_cont(io); 5107 return; 5108 } 5109 /* 5110 * Since a configuration write can be done for commands that actually 5111 * have data allocated, like write buffer, and commands that have 5112 * no data, like start/stop unit, we need to check here. 5113 */ 5114 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5115 buf = io->scsiio.kern_data_ptr; 5116 else 5117 buf = NULL; 5118 ctl_done(io); 5119 if (buf) 5120 free(buf, M_CTL); 5121} 5122 5123/* 5124 * SCSI release command. 5125 */ 5126int 5127ctl_scsi_release(struct ctl_scsiio *ctsio) 5128{ 5129 int length, longid, thirdparty_id, resv_id; 5130 struct ctl_softc *ctl_softc; 5131 struct ctl_lun *lun; 5132 uint32_t residx; 5133 5134 length = 0; 5135 resv_id = 0; 5136 5137 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5138 5139 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5140 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5141 ctl_softc = control_softc; 5142 5143 switch (ctsio->cdb[0]) { 5144 case RELEASE_10: { 5145 struct scsi_release_10 *cdb; 5146 5147 cdb = (struct scsi_release_10 *)ctsio->cdb; 5148 5149 if (cdb->byte2 & SR10_LONGID) 5150 longid = 1; 5151 else 5152 thirdparty_id = cdb->thirdparty_id; 5153 5154 resv_id = cdb->resv_id; 5155 length = scsi_2btoul(cdb->length); 5156 break; 5157 } 5158 } 5159 5160 5161 /* 5162 * XXX KDM right now, we only support LUN reservation. We don't 5163 * support 3rd party reservations, or extent reservations, which 5164 * might actually need the parameter list. If we've gotten this 5165 * far, we've got a LUN reservation. Anything else got kicked out 5166 * above. So, according to SPC, ignore the length. 5167 */ 5168 length = 0; 5169 5170 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5171 && (length > 0)) { 5172 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5173 ctsio->kern_data_len = length; 5174 ctsio->kern_total_len = length; 5175 ctsio->kern_data_resid = 0; 5176 ctsio->kern_rel_offset = 0; 5177 ctsio->kern_sg_entries = 0; 5178 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5179 ctsio->be_move_done = ctl_config_move_done; 5180 ctl_datamove((union ctl_io *)ctsio); 5181 5182 return (CTL_RETVAL_COMPLETE); 5183 } 5184 5185 if (length > 0) 5186 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5187 5188 mtx_lock(&lun->lun_lock); 5189 5190 /* 5191 * According to SPC, it is not an error for an intiator to attempt 5192 * to release a reservation on a LUN that isn't reserved, or that 5193 * is reserved by another initiator. The reservation can only be 5194 * released, though, by the initiator who made it or by one of 5195 * several reset type events. 5196 */ 5197 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5198 lun->flags &= ~CTL_LUN_RESERVED; 5199 5200 mtx_unlock(&lun->lun_lock); 5201 5202 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5203 free(ctsio->kern_data_ptr, M_CTL); 5204 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5205 } 5206 5207 ctl_set_success(ctsio); 5208 ctl_done((union ctl_io *)ctsio); 5209 return (CTL_RETVAL_COMPLETE); 5210} 5211 5212int 5213ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5214{ 5215 int extent, thirdparty, longid; 5216 int resv_id, length; 5217 uint64_t thirdparty_id; 5218 struct ctl_softc *ctl_softc; 5219 struct ctl_lun *lun; 5220 uint32_t residx; 5221 5222 extent = 0; 5223 thirdparty = 0; 5224 longid = 0; 5225 resv_id = 0; 5226 length = 0; 5227 thirdparty_id = 0; 5228 5229 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5230 5231 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5232 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5233 ctl_softc = control_softc; 5234 5235 switch (ctsio->cdb[0]) { 5236 case RESERVE_10: { 5237 struct scsi_reserve_10 *cdb; 5238 5239 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 5240 5241 if (cdb->byte2 & SR10_LONGID) 5242 longid = 1; 5243 else 5244 thirdparty_id = cdb->thirdparty_id; 5245 5246 resv_id = cdb->resv_id; 5247 length = scsi_2btoul(cdb->length); 5248 break; 5249 } 5250 } 5251 5252 /* 5253 * XXX KDM right now, we only support LUN reservation. We don't 5254 * support 3rd party reservations, or extent reservations, which 5255 * might actually need the parameter list. If we've gotten this 5256 * far, we've got a LUN reservation. Anything else got kicked out 5257 * above. So, according to SPC, ignore the length. 5258 */ 5259 length = 0; 5260 5261 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5262 && (length > 0)) { 5263 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5264 ctsio->kern_data_len = length; 5265 ctsio->kern_total_len = length; 5266 ctsio->kern_data_resid = 0; 5267 ctsio->kern_rel_offset = 0; 5268 ctsio->kern_sg_entries = 0; 5269 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5270 ctsio->be_move_done = ctl_config_move_done; 5271 ctl_datamove((union ctl_io *)ctsio); 5272 5273 return (CTL_RETVAL_COMPLETE); 5274 } 5275 5276 if (length > 0) 5277 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5278 5279 mtx_lock(&lun->lun_lock); 5280 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5281 ctl_set_reservation_conflict(ctsio); 5282 goto bailout; 5283 } 5284 5285 lun->flags |= CTL_LUN_RESERVED; 5286 lun->res_idx = residx; 5287 5288 ctl_set_success(ctsio); 5289 5290bailout: 5291 mtx_unlock(&lun->lun_lock); 5292 5293 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5294 free(ctsio->kern_data_ptr, M_CTL); 5295 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5296 } 5297 5298 ctl_done((union ctl_io *)ctsio); 5299 return (CTL_RETVAL_COMPLETE); 5300} 5301 5302int 5303ctl_start_stop(struct ctl_scsiio *ctsio) 5304{ 5305 struct scsi_start_stop_unit *cdb; 5306 struct ctl_lun *lun; 5307 struct ctl_softc *ctl_softc; 5308 int retval; 5309 5310 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5311 5312 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5313 ctl_softc = control_softc; 5314 retval = 0; 5315 5316 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5317 5318 /* 5319 * XXX KDM 5320 * We don't support the immediate bit on a stop unit. In order to 5321 * do that, we would need to code up a way to know that a stop is 5322 * pending, and hold off any new commands until it completes, one 5323 * way or another. Then we could accept or reject those commands 5324 * depending on its status. We would almost need to do the reverse 5325 * of what we do below for an immediate start -- return the copy of 5326 * the ctl_io to the FETD with status to send to the host (and to 5327 * free the copy!) and then free the original I/O once the stop 5328 * actually completes. That way, the OOA queue mechanism can work 5329 * to block commands that shouldn't proceed. Another alternative 5330 * would be to put the copy in the queue in place of the original, 5331 * and return the original back to the caller. That could be 5332 * slightly safer.. 5333 */ 5334 if ((cdb->byte2 & SSS_IMMED) 5335 && ((cdb->how & SSS_START) == 0)) { 5336 ctl_set_invalid_field(ctsio, 5337 /*sks_valid*/ 1, 5338 /*command*/ 1, 5339 /*field*/ 1, 5340 /*bit_valid*/ 1, 5341 /*bit*/ 0); 5342 ctl_done((union ctl_io *)ctsio); 5343 return (CTL_RETVAL_COMPLETE); 5344 } 5345 5346 if ((lun->flags & CTL_LUN_PR_RESERVED) 5347 && ((cdb->how & SSS_START)==0)) { 5348 uint32_t residx; 5349 5350 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5351 if (lun->pr_keys[residx] == 0 5352 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5353 5354 ctl_set_reservation_conflict(ctsio); 5355 ctl_done((union ctl_io *)ctsio); 5356 return (CTL_RETVAL_COMPLETE); 5357 } 5358 } 5359 5360 /* 5361 * If there is no backend on this device, we can't start or stop 5362 * it. In theory we shouldn't get any start/stop commands in the 5363 * first place at this level if the LUN doesn't have a backend. 5364 * That should get stopped by the command decode code. 5365 */ 5366 if (lun->backend == NULL) { 5367 ctl_set_invalid_opcode(ctsio); 5368 ctl_done((union ctl_io *)ctsio); 5369 return (CTL_RETVAL_COMPLETE); 5370 } 5371 5372 /* 5373 * XXX KDM Copan-specific offline behavior. 5374 * Figure out a reasonable way to port this? 5375 */ 5376#ifdef NEEDTOPORT 5377 mtx_lock(&lun->lun_lock); 5378 5379 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5380 && (lun->flags & CTL_LUN_OFFLINE)) { 5381 /* 5382 * If the LUN is offline, and the on/offline bit isn't set, 5383 * reject the start or stop. Otherwise, let it through. 5384 */ 5385 mtx_unlock(&lun->lun_lock); 5386 ctl_set_lun_not_ready(ctsio); 5387 ctl_done((union ctl_io *)ctsio); 5388 } else { 5389 mtx_unlock(&lun->lun_lock); 5390#endif /* NEEDTOPORT */ 5391 /* 5392 * This could be a start or a stop when we're online, 5393 * or a stop/offline or start/online. A start or stop when 5394 * we're offline is covered in the case above. 5395 */ 5396 /* 5397 * In the non-immediate case, we send the request to 5398 * the backend and return status to the user when 5399 * it is done. 5400 * 5401 * In the immediate case, we allocate a new ctl_io 5402 * to hold a copy of the request, and send that to 5403 * the backend. We then set good status on the 5404 * user's request and return it immediately. 5405 */ 5406 if (cdb->byte2 & SSS_IMMED) { 5407 union ctl_io *new_io; 5408 5409 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5410 ctl_copy_io((union ctl_io *)ctsio, new_io); 5411 retval = lun->backend->config_write(new_io); 5412 ctl_set_success(ctsio); 5413 ctl_done((union ctl_io *)ctsio); 5414 } else { 5415 retval = lun->backend->config_write( 5416 (union ctl_io *)ctsio); 5417 } 5418#ifdef NEEDTOPORT 5419 } 5420#endif 5421 return (retval); 5422} 5423 5424/* 5425 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5426 * we don't really do anything with the LBA and length fields if the user 5427 * passes them in. Instead we'll just flush out the cache for the entire 5428 * LUN. 5429 */ 5430int 5431ctl_sync_cache(struct ctl_scsiio *ctsio) 5432{ 5433 struct ctl_lun *lun; 5434 struct ctl_softc *ctl_softc; 5435 uint64_t starting_lba; 5436 uint32_t block_count; 5437 int retval; 5438 5439 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5440 5441 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5442 ctl_softc = control_softc; 5443 retval = 0; 5444 5445 switch (ctsio->cdb[0]) { 5446 case SYNCHRONIZE_CACHE: { 5447 struct scsi_sync_cache *cdb; 5448 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5449 5450 starting_lba = scsi_4btoul(cdb->begin_lba); 5451 block_count = scsi_2btoul(cdb->lb_count); 5452 break; 5453 } 5454 case SYNCHRONIZE_CACHE_16: { 5455 struct scsi_sync_cache_16 *cdb; 5456 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5457 5458 starting_lba = scsi_8btou64(cdb->begin_lba); 5459 block_count = scsi_4btoul(cdb->lb_count); 5460 break; 5461 } 5462 default: 5463 ctl_set_invalid_opcode(ctsio); 5464 ctl_done((union ctl_io *)ctsio); 5465 goto bailout; 5466 break; /* NOTREACHED */ 5467 } 5468 5469 /* 5470 * We check the LBA and length, but don't do anything with them. 5471 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5472 * get flushed. This check will just help satisfy anyone who wants 5473 * to see an error for an out of range LBA. 5474 */ 5475 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5476 ctl_set_lba_out_of_range(ctsio); 5477 ctl_done((union ctl_io *)ctsio); 5478 goto bailout; 5479 } 5480 5481 /* 5482 * If this LUN has no backend, we can't flush the cache anyway. 5483 */ 5484 if (lun->backend == NULL) { 5485 ctl_set_invalid_opcode(ctsio); 5486 ctl_done((union ctl_io *)ctsio); 5487 goto bailout; 5488 } 5489 5490 /* 5491 * Check to see whether we're configured to send the SYNCHRONIZE 5492 * CACHE command directly to the back end. 5493 */ 5494 mtx_lock(&lun->lun_lock); 5495 if ((ctl_softc->flags & CTL_FLAG_REAL_SYNC) 5496 && (++(lun->sync_count) >= lun->sync_interval)) { 5497 lun->sync_count = 0; 5498 mtx_unlock(&lun->lun_lock); 5499 retval = lun->backend->config_write((union ctl_io *)ctsio); 5500 } else { 5501 mtx_unlock(&lun->lun_lock); 5502 ctl_set_success(ctsio); 5503 ctl_done((union ctl_io *)ctsio); 5504 } 5505 5506bailout: 5507 5508 return (retval); 5509} 5510 5511int 5512ctl_format(struct ctl_scsiio *ctsio) 5513{ 5514 struct scsi_format *cdb; 5515 struct ctl_lun *lun; 5516 struct ctl_softc *ctl_softc; 5517 int length, defect_list_len; 5518 5519 CTL_DEBUG_PRINT(("ctl_format\n")); 5520 5521 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5522 ctl_softc = control_softc; 5523 5524 cdb = (struct scsi_format *)ctsio->cdb; 5525 5526 length = 0; 5527 if (cdb->byte2 & SF_FMTDATA) { 5528 if (cdb->byte2 & SF_LONGLIST) 5529 length = sizeof(struct scsi_format_header_long); 5530 else 5531 length = sizeof(struct scsi_format_header_short); 5532 } 5533 5534 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5535 && (length > 0)) { 5536 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5537 ctsio->kern_data_len = length; 5538 ctsio->kern_total_len = length; 5539 ctsio->kern_data_resid = 0; 5540 ctsio->kern_rel_offset = 0; 5541 ctsio->kern_sg_entries = 0; 5542 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5543 ctsio->be_move_done = ctl_config_move_done; 5544 ctl_datamove((union ctl_io *)ctsio); 5545 5546 return (CTL_RETVAL_COMPLETE); 5547 } 5548 5549 defect_list_len = 0; 5550 5551 if (cdb->byte2 & SF_FMTDATA) { 5552 if (cdb->byte2 & SF_LONGLIST) { 5553 struct scsi_format_header_long *header; 5554 5555 header = (struct scsi_format_header_long *) 5556 ctsio->kern_data_ptr; 5557 5558 defect_list_len = scsi_4btoul(header->defect_list_len); 5559 if (defect_list_len != 0) { 5560 ctl_set_invalid_field(ctsio, 5561 /*sks_valid*/ 1, 5562 /*command*/ 0, 5563 /*field*/ 2, 5564 /*bit_valid*/ 0, 5565 /*bit*/ 0); 5566 goto bailout; 5567 } 5568 } else { 5569 struct scsi_format_header_short *header; 5570 5571 header = (struct scsi_format_header_short *) 5572 ctsio->kern_data_ptr; 5573 5574 defect_list_len = scsi_2btoul(header->defect_list_len); 5575 if (defect_list_len != 0) { 5576 ctl_set_invalid_field(ctsio, 5577 /*sks_valid*/ 1, 5578 /*command*/ 0, 5579 /*field*/ 2, 5580 /*bit_valid*/ 0, 5581 /*bit*/ 0); 5582 goto bailout; 5583 } 5584 } 5585 } 5586 5587 /* 5588 * The format command will clear out the "Medium format corrupted" 5589 * status if set by the configuration code. That status is really 5590 * just a way to notify the host that we have lost the media, and 5591 * get them to issue a command that will basically make them think 5592 * they're blowing away the media. 5593 */ 5594 mtx_lock(&lun->lun_lock); 5595 lun->flags &= ~CTL_LUN_INOPERABLE; 5596 mtx_unlock(&lun->lun_lock); 5597 5598 ctl_set_success(ctsio); 5599bailout: 5600 5601 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5602 free(ctsio->kern_data_ptr, M_CTL); 5603 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5604 } 5605 5606 ctl_done((union ctl_io *)ctsio); 5607 return (CTL_RETVAL_COMPLETE); 5608} 5609 5610int 5611ctl_read_buffer(struct ctl_scsiio *ctsio) 5612{ 5613 struct scsi_read_buffer *cdb; 5614 struct ctl_lun *lun; 5615 int buffer_offset, len; 5616 static uint8_t descr[4]; 5617 static uint8_t echo_descr[4] = { 0 }; 5618 5619 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5620 5621 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5622 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5623 5624 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA && 5625 (cdb->byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5626 (cdb->byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5627 ctl_set_invalid_field(ctsio, 5628 /*sks_valid*/ 1, 5629 /*command*/ 1, 5630 /*field*/ 1, 5631 /*bit_valid*/ 1, 5632 /*bit*/ 4); 5633 ctl_done((union ctl_io *)ctsio); 5634 return (CTL_RETVAL_COMPLETE); 5635 } 5636 5637 len = scsi_3btoul(cdb->length); 5638 buffer_offset = scsi_3btoul(cdb->offset); 5639 5640 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5641 ctl_set_invalid_field(ctsio, 5642 /*sks_valid*/ 1, 5643 /*command*/ 1, 5644 /*field*/ 6, 5645 /*bit_valid*/ 0, 5646 /*bit*/ 0); 5647 ctl_done((union ctl_io *)ctsio); 5648 return (CTL_RETVAL_COMPLETE); 5649 } 5650 5651 if ((cdb->byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5652 descr[0] = 0; 5653 scsi_ulto3b(CTL_WRITE_BUFFER_SIZE, &descr[1]); 5654 ctsio->kern_data_ptr = descr; 5655 len = min(len, sizeof(descr)); 5656 } else if ((cdb->byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5657 ctsio->kern_data_ptr = echo_descr; 5658 len = min(len, sizeof(echo_descr)); 5659 } else { 5660 if (lun->write_buffer == NULL) { 5661 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5662 M_CTL, M_WAITOK); 5663 } 5664 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5665 } 5666 ctsio->kern_data_len = len; 5667 ctsio->kern_total_len = len; 5668 ctsio->kern_data_resid = 0; 5669 ctsio->kern_rel_offset = 0; 5670 ctsio->kern_sg_entries = 0; 5671 ctl_set_success(ctsio); 5672 ctsio->be_move_done = ctl_config_move_done; 5673 ctl_datamove((union ctl_io *)ctsio); 5674 return (CTL_RETVAL_COMPLETE); 5675} 5676 5677int 5678ctl_write_buffer(struct ctl_scsiio *ctsio) 5679{ 5680 struct scsi_write_buffer *cdb; 5681 struct ctl_lun *lun; 5682 int buffer_offset, len; 5683 5684 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5685 5686 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5687 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5688 5689 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5690 ctl_set_invalid_field(ctsio, 5691 /*sks_valid*/ 1, 5692 /*command*/ 1, 5693 /*field*/ 1, 5694 /*bit_valid*/ 1, 5695 /*bit*/ 4); 5696 ctl_done((union ctl_io *)ctsio); 5697 return (CTL_RETVAL_COMPLETE); 5698 } 5699 5700 len = scsi_3btoul(cdb->length); 5701 buffer_offset = scsi_3btoul(cdb->offset); 5702 5703 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5704 ctl_set_invalid_field(ctsio, 5705 /*sks_valid*/ 1, 5706 /*command*/ 1, 5707 /*field*/ 6, 5708 /*bit_valid*/ 0, 5709 /*bit*/ 0); 5710 ctl_done((union ctl_io *)ctsio); 5711 return (CTL_RETVAL_COMPLETE); 5712 } 5713 5714 /* 5715 * If we've got a kernel request that hasn't been malloced yet, 5716 * malloc it and tell the caller the data buffer is here. 5717 */ 5718 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5719 if (lun->write_buffer == NULL) { 5720 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5721 M_CTL, M_WAITOK); 5722 } 5723 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5724 ctsio->kern_data_len = len; 5725 ctsio->kern_total_len = len; 5726 ctsio->kern_data_resid = 0; 5727 ctsio->kern_rel_offset = 0; 5728 ctsio->kern_sg_entries = 0; 5729 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5730 ctsio->be_move_done = ctl_config_move_done; 5731 ctl_datamove((union ctl_io *)ctsio); 5732 5733 return (CTL_RETVAL_COMPLETE); 5734 } 5735 5736 ctl_set_success(ctsio); 5737 ctl_done((union ctl_io *)ctsio); 5738 return (CTL_RETVAL_COMPLETE); 5739} 5740 5741int 5742ctl_write_same(struct ctl_scsiio *ctsio) 5743{ 5744 struct ctl_lun *lun; 5745 struct ctl_lba_len_flags *lbalen; 5746 uint64_t lba; 5747 uint32_t num_blocks; 5748 int len, retval; 5749 uint8_t byte2; 5750 5751 retval = CTL_RETVAL_COMPLETE; 5752 5753 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5754 5755 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5756 5757 switch (ctsio->cdb[0]) { 5758 case WRITE_SAME_10: { 5759 struct scsi_write_same_10 *cdb; 5760 5761 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5762 5763 lba = scsi_4btoul(cdb->addr); 5764 num_blocks = scsi_2btoul(cdb->length); 5765 byte2 = cdb->byte2; 5766 break; 5767 } 5768 case WRITE_SAME_16: { 5769 struct scsi_write_same_16 *cdb; 5770 5771 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5772 5773 lba = scsi_8btou64(cdb->addr); 5774 num_blocks = scsi_4btoul(cdb->length); 5775 byte2 = cdb->byte2; 5776 break; 5777 } 5778 default: 5779 /* 5780 * We got a command we don't support. This shouldn't 5781 * happen, commands should be filtered out above us. 5782 */ 5783 ctl_set_invalid_opcode(ctsio); 5784 ctl_done((union ctl_io *)ctsio); 5785 5786 return (CTL_RETVAL_COMPLETE); 5787 break; /* NOTREACHED */ 5788 } 5789 5790 /* NDOB and ANCHOR flags can be used only together with UNMAP */ 5791 if ((byte2 & SWS_UNMAP) == 0 && 5792 (byte2 & (SWS_NDOB | SWS_ANCHOR)) != 0) { 5793 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5794 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5795 ctl_done((union ctl_io *)ctsio); 5796 return (CTL_RETVAL_COMPLETE); 5797 } 5798 5799 /* 5800 * The first check is to make sure we're in bounds, the second 5801 * check is to catch wrap-around problems. If the lba + num blocks 5802 * is less than the lba, then we've wrapped around and the block 5803 * range is invalid anyway. 5804 */ 5805 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5806 || ((lba + num_blocks) < lba)) { 5807 ctl_set_lba_out_of_range(ctsio); 5808 ctl_done((union ctl_io *)ctsio); 5809 return (CTL_RETVAL_COMPLETE); 5810 } 5811 5812 /* Zero number of blocks means "to the last logical block" */ 5813 if (num_blocks == 0) { 5814 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5815 ctl_set_invalid_field(ctsio, 5816 /*sks_valid*/ 0, 5817 /*command*/ 1, 5818 /*field*/ 0, 5819 /*bit_valid*/ 0, 5820 /*bit*/ 0); 5821 ctl_done((union ctl_io *)ctsio); 5822 return (CTL_RETVAL_COMPLETE); 5823 } 5824 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5825 } 5826 5827 len = lun->be_lun->blocksize; 5828 5829 /* 5830 * If we've got a kernel request that hasn't been malloced yet, 5831 * malloc it and tell the caller the data buffer is here. 5832 */ 5833 if ((byte2 & SWS_NDOB) == 0 && 5834 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5835 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5836 ctsio->kern_data_len = len; 5837 ctsio->kern_total_len = len; 5838 ctsio->kern_data_resid = 0; 5839 ctsio->kern_rel_offset = 0; 5840 ctsio->kern_sg_entries = 0; 5841 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5842 ctsio->be_move_done = ctl_config_move_done; 5843 ctl_datamove((union ctl_io *)ctsio); 5844 5845 return (CTL_RETVAL_COMPLETE); 5846 } 5847 5848 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5849 lbalen->lba = lba; 5850 lbalen->len = num_blocks; 5851 lbalen->flags = byte2; 5852 retval = lun->backend->config_write((union ctl_io *)ctsio); 5853 5854 return (retval); 5855} 5856 5857int 5858ctl_unmap(struct ctl_scsiio *ctsio) 5859{ 5860 struct ctl_lun *lun; 5861 struct scsi_unmap *cdb; 5862 struct ctl_ptr_len_flags *ptrlen; 5863 struct scsi_unmap_header *hdr; 5864 struct scsi_unmap_desc *buf, *end, *endnz, *range; 5865 uint64_t lba; 5866 uint32_t num_blocks; 5867 int len, retval; 5868 uint8_t byte2; 5869 5870 retval = CTL_RETVAL_COMPLETE; 5871 5872 CTL_DEBUG_PRINT(("ctl_unmap\n")); 5873 5874 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5875 cdb = (struct scsi_unmap *)ctsio->cdb; 5876 5877 len = scsi_2btoul(cdb->length); 5878 byte2 = cdb->byte2; 5879 5880 /* 5881 * If we've got a kernel request that hasn't been malloced yet, 5882 * malloc it and tell the caller the data buffer is here. 5883 */ 5884 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5885 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5886 ctsio->kern_data_len = len; 5887 ctsio->kern_total_len = len; 5888 ctsio->kern_data_resid = 0; 5889 ctsio->kern_rel_offset = 0; 5890 ctsio->kern_sg_entries = 0; 5891 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5892 ctsio->be_move_done = ctl_config_move_done; 5893 ctl_datamove((union ctl_io *)ctsio); 5894 5895 return (CTL_RETVAL_COMPLETE); 5896 } 5897 5898 len = ctsio->kern_total_len - ctsio->kern_data_resid; 5899 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 5900 if (len < sizeof (*hdr) || 5901 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 5902 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 5903 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 5904 ctl_set_invalid_field(ctsio, 5905 /*sks_valid*/ 0, 5906 /*command*/ 0, 5907 /*field*/ 0, 5908 /*bit_valid*/ 0, 5909 /*bit*/ 0); 5910 goto done; 5911 } 5912 len = scsi_2btoul(hdr->desc_length); 5913 buf = (struct scsi_unmap_desc *)(hdr + 1); 5914 end = buf + len / sizeof(*buf); 5915 5916 endnz = buf; 5917 for (range = buf; range < end; range++) { 5918 lba = scsi_8btou64(range->lba); 5919 num_blocks = scsi_4btoul(range->length); 5920 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5921 || ((lba + num_blocks) < lba)) { 5922 ctl_set_lba_out_of_range(ctsio); 5923 ctl_done((union ctl_io *)ctsio); 5924 return (CTL_RETVAL_COMPLETE); 5925 } 5926 if (num_blocks != 0) 5927 endnz = range + 1; 5928 } 5929 5930 /* 5931 * Block backend can not handle zero last range. 5932 * Filter it out and return if there is nothing left. 5933 */ 5934 len = (uint8_t *)endnz - (uint8_t *)buf; 5935 if (len == 0) { 5936 ctl_set_success(ctsio); 5937 goto done; 5938 } 5939 5940 mtx_lock(&lun->lun_lock); 5941 ptrlen = (struct ctl_ptr_len_flags *) 5942 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5943 ptrlen->ptr = (void *)buf; 5944 ptrlen->len = len; 5945 ptrlen->flags = byte2; 5946 ctl_check_blocked(lun); 5947 mtx_unlock(&lun->lun_lock); 5948 5949 retval = lun->backend->config_write((union ctl_io *)ctsio); 5950 return (retval); 5951 5952done: 5953 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5954 free(ctsio->kern_data_ptr, M_CTL); 5955 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5956 } 5957 ctl_done((union ctl_io *)ctsio); 5958 return (CTL_RETVAL_COMPLETE); 5959} 5960 5961/* 5962 * Note that this function currently doesn't actually do anything inside 5963 * CTL to enforce things if the DQue bit is turned on. 5964 * 5965 * Also note that this function can't be used in the default case, because 5966 * the DQue bit isn't set in the changeable mask for the control mode page 5967 * anyway. This is just here as an example for how to implement a page 5968 * handler, and a placeholder in case we want to allow the user to turn 5969 * tagged queueing on and off. 5970 * 5971 * The D_SENSE bit handling is functional, however, and will turn 5972 * descriptor sense on and off for a given LUN. 5973 */ 5974int 5975ctl_control_page_handler(struct ctl_scsiio *ctsio, 5976 struct ctl_page_index *page_index, uint8_t *page_ptr) 5977{ 5978 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 5979 struct ctl_lun *lun; 5980 struct ctl_softc *softc; 5981 int set_ua; 5982 uint32_t initidx; 5983 5984 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5985 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5986 set_ua = 0; 5987 5988 user_cp = (struct scsi_control_page *)page_ptr; 5989 current_cp = (struct scsi_control_page *) 5990 (page_index->page_data + (page_index->page_len * 5991 CTL_PAGE_CURRENT)); 5992 saved_cp = (struct scsi_control_page *) 5993 (page_index->page_data + (page_index->page_len * 5994 CTL_PAGE_SAVED)); 5995 5996 softc = control_softc; 5997 5998 mtx_lock(&lun->lun_lock); 5999 if (((current_cp->rlec & SCP_DSENSE) == 0) 6000 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 6001 /* 6002 * Descriptor sense is currently turned off and the user 6003 * wants to turn it on. 6004 */ 6005 current_cp->rlec |= SCP_DSENSE; 6006 saved_cp->rlec |= SCP_DSENSE; 6007 lun->flags |= CTL_LUN_SENSE_DESC; 6008 set_ua = 1; 6009 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 6010 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 6011 /* 6012 * Descriptor sense is currently turned on, and the user 6013 * wants to turn it off. 6014 */ 6015 current_cp->rlec &= ~SCP_DSENSE; 6016 saved_cp->rlec &= ~SCP_DSENSE; 6017 lun->flags &= ~CTL_LUN_SENSE_DESC; 6018 set_ua = 1; 6019 } 6020 if ((current_cp->queue_flags & SCP_QUEUE_ALG_MASK) != 6021 (user_cp->queue_flags & SCP_QUEUE_ALG_MASK)) { 6022 current_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6023 current_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6024 saved_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6025 saved_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6026 set_ua = 1; 6027 } 6028 if ((current_cp->eca_and_aen & SCP_SWP) != 6029 (user_cp->eca_and_aen & SCP_SWP)) { 6030 current_cp->eca_and_aen &= ~SCP_SWP; 6031 current_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6032 saved_cp->eca_and_aen &= ~SCP_SWP; 6033 saved_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6034 set_ua = 1; 6035 } 6036 if (set_ua != 0) { 6037 int i; 6038 /* 6039 * Let other initiators know that the mode 6040 * parameters for this LUN have changed. 6041 */ 6042 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6043 if (i == initidx) 6044 continue; 6045 6046 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6047 } 6048 } 6049 mtx_unlock(&lun->lun_lock); 6050 6051 return (0); 6052} 6053 6054int 6055ctl_caching_sp_handler(struct ctl_scsiio *ctsio, 6056 struct ctl_page_index *page_index, uint8_t *page_ptr) 6057{ 6058 struct scsi_caching_page *current_cp, *saved_cp, *user_cp; 6059 struct ctl_lun *lun; 6060 int set_ua; 6061 uint32_t initidx; 6062 6063 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6064 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6065 set_ua = 0; 6066 6067 user_cp = (struct scsi_caching_page *)page_ptr; 6068 current_cp = (struct scsi_caching_page *) 6069 (page_index->page_data + (page_index->page_len * 6070 CTL_PAGE_CURRENT)); 6071 saved_cp = (struct scsi_caching_page *) 6072 (page_index->page_data + (page_index->page_len * 6073 CTL_PAGE_SAVED)); 6074 6075 mtx_lock(&lun->lun_lock); 6076 if ((current_cp->flags1 & (SCP_WCE | SCP_RCD)) != 6077 (user_cp->flags1 & (SCP_WCE | SCP_RCD))) { 6078 current_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6079 current_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6080 saved_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6081 saved_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6082 set_ua = 1; 6083 } 6084 if (set_ua != 0) { 6085 int i; 6086 /* 6087 * Let other initiators know that the mode 6088 * parameters for this LUN have changed. 6089 */ 6090 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6091 if (i == initidx) 6092 continue; 6093 6094 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6095 } 6096 } 6097 mtx_unlock(&lun->lun_lock); 6098 6099 return (0); 6100} 6101 6102int 6103ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 6104 struct ctl_page_index *page_index, 6105 uint8_t *page_ptr) 6106{ 6107 uint8_t *c; 6108 int i; 6109 6110 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 6111 ctl_time_io_secs = 6112 (c[0] << 8) | 6113 (c[1] << 0) | 6114 0; 6115 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 6116 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 6117 printf("page data:"); 6118 for (i=0; i<8; i++) 6119 printf(" %.2x",page_ptr[i]); 6120 printf("\n"); 6121 return (0); 6122} 6123 6124int 6125ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 6126 struct ctl_page_index *page_index, 6127 int pc) 6128{ 6129 struct copan_debugconf_subpage *page; 6130 6131 page = (struct copan_debugconf_subpage *)page_index->page_data + 6132 (page_index->page_len * pc); 6133 6134 switch (pc) { 6135 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6136 case SMS_PAGE_CTRL_DEFAULT >> 6: 6137 case SMS_PAGE_CTRL_SAVED >> 6: 6138 /* 6139 * We don't update the changable or default bits for this page. 6140 */ 6141 break; 6142 case SMS_PAGE_CTRL_CURRENT >> 6: 6143 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 6144 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 6145 break; 6146 default: 6147#ifdef NEEDTOPORT 6148 EPRINT(0, "Invalid PC %d!!", pc); 6149#endif /* NEEDTOPORT */ 6150 break; 6151 } 6152 return (0); 6153} 6154 6155 6156static int 6157ctl_do_mode_select(union ctl_io *io) 6158{ 6159 struct scsi_mode_page_header *page_header; 6160 struct ctl_page_index *page_index; 6161 struct ctl_scsiio *ctsio; 6162 int control_dev, page_len; 6163 int page_len_offset, page_len_size; 6164 union ctl_modepage_info *modepage_info; 6165 struct ctl_lun *lun; 6166 int *len_left, *len_used; 6167 int retval, i; 6168 6169 ctsio = &io->scsiio; 6170 page_index = NULL; 6171 page_len = 0; 6172 retval = CTL_RETVAL_COMPLETE; 6173 6174 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6175 6176 if (lun->be_lun->lun_type != T_DIRECT) 6177 control_dev = 1; 6178 else 6179 control_dev = 0; 6180 6181 modepage_info = (union ctl_modepage_info *) 6182 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6183 len_left = &modepage_info->header.len_left; 6184 len_used = &modepage_info->header.len_used; 6185 6186do_next_page: 6187 6188 page_header = (struct scsi_mode_page_header *) 6189 (ctsio->kern_data_ptr + *len_used); 6190 6191 if (*len_left == 0) { 6192 free(ctsio->kern_data_ptr, M_CTL); 6193 ctl_set_success(ctsio); 6194 ctl_done((union ctl_io *)ctsio); 6195 return (CTL_RETVAL_COMPLETE); 6196 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6197 6198 free(ctsio->kern_data_ptr, M_CTL); 6199 ctl_set_param_len_error(ctsio); 6200 ctl_done((union ctl_io *)ctsio); 6201 return (CTL_RETVAL_COMPLETE); 6202 6203 } else if ((page_header->page_code & SMPH_SPF) 6204 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6205 6206 free(ctsio->kern_data_ptr, M_CTL); 6207 ctl_set_param_len_error(ctsio); 6208 ctl_done((union ctl_io *)ctsio); 6209 return (CTL_RETVAL_COMPLETE); 6210 } 6211 6212 6213 /* 6214 * XXX KDM should we do something with the block descriptor? 6215 */ 6216 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6217 6218 if ((control_dev != 0) 6219 && (lun->mode_pages.index[i].page_flags & 6220 CTL_PAGE_FLAG_DISK_ONLY)) 6221 continue; 6222 6223 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 6224 (page_header->page_code & SMPH_PC_MASK)) 6225 continue; 6226 6227 /* 6228 * If neither page has a subpage code, then we've got a 6229 * match. 6230 */ 6231 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 6232 && ((page_header->page_code & SMPH_SPF) == 0)) { 6233 page_index = &lun->mode_pages.index[i]; 6234 page_len = page_header->page_length; 6235 break; 6236 } 6237 6238 /* 6239 * If both pages have subpages, then the subpage numbers 6240 * have to match. 6241 */ 6242 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 6243 && (page_header->page_code & SMPH_SPF)) { 6244 struct scsi_mode_page_header_sp *sph; 6245 6246 sph = (struct scsi_mode_page_header_sp *)page_header; 6247 6248 if (lun->mode_pages.index[i].subpage == 6249 sph->subpage) { 6250 page_index = &lun->mode_pages.index[i]; 6251 page_len = scsi_2btoul(sph->page_length); 6252 break; 6253 } 6254 } 6255 } 6256 6257 /* 6258 * If we couldn't find the page, or if we don't have a mode select 6259 * handler for it, send back an error to the user. 6260 */ 6261 if ((page_index == NULL) 6262 || (page_index->select_handler == NULL)) { 6263 ctl_set_invalid_field(ctsio, 6264 /*sks_valid*/ 1, 6265 /*command*/ 0, 6266 /*field*/ *len_used, 6267 /*bit_valid*/ 0, 6268 /*bit*/ 0); 6269 free(ctsio->kern_data_ptr, M_CTL); 6270 ctl_done((union ctl_io *)ctsio); 6271 return (CTL_RETVAL_COMPLETE); 6272 } 6273 6274 if (page_index->page_code & SMPH_SPF) { 6275 page_len_offset = 2; 6276 page_len_size = 2; 6277 } else { 6278 page_len_size = 1; 6279 page_len_offset = 1; 6280 } 6281 6282 /* 6283 * If the length the initiator gives us isn't the one we specify in 6284 * the mode page header, or if they didn't specify enough data in 6285 * the CDB to avoid truncating this page, kick out the request. 6286 */ 6287 if ((page_len != (page_index->page_len - page_len_offset - 6288 page_len_size)) 6289 || (*len_left < page_index->page_len)) { 6290 6291 6292 ctl_set_invalid_field(ctsio, 6293 /*sks_valid*/ 1, 6294 /*command*/ 0, 6295 /*field*/ *len_used + page_len_offset, 6296 /*bit_valid*/ 0, 6297 /*bit*/ 0); 6298 free(ctsio->kern_data_ptr, M_CTL); 6299 ctl_done((union ctl_io *)ctsio); 6300 return (CTL_RETVAL_COMPLETE); 6301 } 6302 6303 /* 6304 * Run through the mode page, checking to make sure that the bits 6305 * the user changed are actually legal for him to change. 6306 */ 6307 for (i = 0; i < page_index->page_len; i++) { 6308 uint8_t *user_byte, *change_mask, *current_byte; 6309 int bad_bit; 6310 int j; 6311 6312 user_byte = (uint8_t *)page_header + i; 6313 change_mask = page_index->page_data + 6314 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6315 current_byte = page_index->page_data + 6316 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6317 6318 /* 6319 * Check to see whether the user set any bits in this byte 6320 * that he is not allowed to set. 6321 */ 6322 if ((*user_byte & ~(*change_mask)) == 6323 (*current_byte & ~(*change_mask))) 6324 continue; 6325 6326 /* 6327 * Go through bit by bit to determine which one is illegal. 6328 */ 6329 bad_bit = 0; 6330 for (j = 7; j >= 0; j--) { 6331 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6332 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6333 bad_bit = i; 6334 break; 6335 } 6336 } 6337 ctl_set_invalid_field(ctsio, 6338 /*sks_valid*/ 1, 6339 /*command*/ 0, 6340 /*field*/ *len_used + i, 6341 /*bit_valid*/ 1, 6342 /*bit*/ bad_bit); 6343 free(ctsio->kern_data_ptr, M_CTL); 6344 ctl_done((union ctl_io *)ctsio); 6345 return (CTL_RETVAL_COMPLETE); 6346 } 6347 6348 /* 6349 * Decrement these before we call the page handler, since we may 6350 * end up getting called back one way or another before the handler 6351 * returns to this context. 6352 */ 6353 *len_left -= page_index->page_len; 6354 *len_used += page_index->page_len; 6355 6356 retval = page_index->select_handler(ctsio, page_index, 6357 (uint8_t *)page_header); 6358 6359 /* 6360 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6361 * wait until this queued command completes to finish processing 6362 * the mode page. If it returns anything other than 6363 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6364 * already set the sense information, freed the data pointer, and 6365 * completed the io for us. 6366 */ 6367 if (retval != CTL_RETVAL_COMPLETE) 6368 goto bailout_no_done; 6369 6370 /* 6371 * If the initiator sent us more than one page, parse the next one. 6372 */ 6373 if (*len_left > 0) 6374 goto do_next_page; 6375 6376 ctl_set_success(ctsio); 6377 free(ctsio->kern_data_ptr, M_CTL); 6378 ctl_done((union ctl_io *)ctsio); 6379 6380bailout_no_done: 6381 6382 return (CTL_RETVAL_COMPLETE); 6383 6384} 6385 6386int 6387ctl_mode_select(struct ctl_scsiio *ctsio) 6388{ 6389 int param_len, pf, sp; 6390 int header_size, bd_len; 6391 int len_left, len_used; 6392 struct ctl_page_index *page_index; 6393 struct ctl_lun *lun; 6394 int control_dev, page_len; 6395 union ctl_modepage_info *modepage_info; 6396 int retval; 6397 6398 pf = 0; 6399 sp = 0; 6400 page_len = 0; 6401 len_used = 0; 6402 len_left = 0; 6403 retval = 0; 6404 bd_len = 0; 6405 page_index = NULL; 6406 6407 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6408 6409 if (lun->be_lun->lun_type != T_DIRECT) 6410 control_dev = 1; 6411 else 6412 control_dev = 0; 6413 6414 switch (ctsio->cdb[0]) { 6415 case MODE_SELECT_6: { 6416 struct scsi_mode_select_6 *cdb; 6417 6418 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6419 6420 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6421 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6422 6423 param_len = cdb->length; 6424 header_size = sizeof(struct scsi_mode_header_6); 6425 break; 6426 } 6427 case MODE_SELECT_10: { 6428 struct scsi_mode_select_10 *cdb; 6429 6430 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6431 6432 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6433 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6434 6435 param_len = scsi_2btoul(cdb->length); 6436 header_size = sizeof(struct scsi_mode_header_10); 6437 break; 6438 } 6439 default: 6440 ctl_set_invalid_opcode(ctsio); 6441 ctl_done((union ctl_io *)ctsio); 6442 return (CTL_RETVAL_COMPLETE); 6443 break; /* NOTREACHED */ 6444 } 6445 6446 /* 6447 * From SPC-3: 6448 * "A parameter list length of zero indicates that the Data-Out Buffer 6449 * shall be empty. This condition shall not be considered as an error." 6450 */ 6451 if (param_len == 0) { 6452 ctl_set_success(ctsio); 6453 ctl_done((union ctl_io *)ctsio); 6454 return (CTL_RETVAL_COMPLETE); 6455 } 6456 6457 /* 6458 * Since we'll hit this the first time through, prior to 6459 * allocation, we don't need to free a data buffer here. 6460 */ 6461 if (param_len < header_size) { 6462 ctl_set_param_len_error(ctsio); 6463 ctl_done((union ctl_io *)ctsio); 6464 return (CTL_RETVAL_COMPLETE); 6465 } 6466 6467 /* 6468 * Allocate the data buffer and grab the user's data. In theory, 6469 * we shouldn't have to sanity check the parameter list length here 6470 * because the maximum size is 64K. We should be able to malloc 6471 * that much without too many problems. 6472 */ 6473 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6474 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6475 ctsio->kern_data_len = param_len; 6476 ctsio->kern_total_len = param_len; 6477 ctsio->kern_data_resid = 0; 6478 ctsio->kern_rel_offset = 0; 6479 ctsio->kern_sg_entries = 0; 6480 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6481 ctsio->be_move_done = ctl_config_move_done; 6482 ctl_datamove((union ctl_io *)ctsio); 6483 6484 return (CTL_RETVAL_COMPLETE); 6485 } 6486 6487 switch (ctsio->cdb[0]) { 6488 case MODE_SELECT_6: { 6489 struct scsi_mode_header_6 *mh6; 6490 6491 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6492 bd_len = mh6->blk_desc_len; 6493 break; 6494 } 6495 case MODE_SELECT_10: { 6496 struct scsi_mode_header_10 *mh10; 6497 6498 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6499 bd_len = scsi_2btoul(mh10->blk_desc_len); 6500 break; 6501 } 6502 default: 6503 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6504 break; 6505 } 6506 6507 if (param_len < (header_size + bd_len)) { 6508 free(ctsio->kern_data_ptr, M_CTL); 6509 ctl_set_param_len_error(ctsio); 6510 ctl_done((union ctl_io *)ctsio); 6511 return (CTL_RETVAL_COMPLETE); 6512 } 6513 6514 /* 6515 * Set the IO_CONT flag, so that if this I/O gets passed to 6516 * ctl_config_write_done(), it'll get passed back to 6517 * ctl_do_mode_select() for further processing, or completion if 6518 * we're all done. 6519 */ 6520 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6521 ctsio->io_cont = ctl_do_mode_select; 6522 6523 modepage_info = (union ctl_modepage_info *) 6524 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6525 6526 memset(modepage_info, 0, sizeof(*modepage_info)); 6527 6528 len_left = param_len - header_size - bd_len; 6529 len_used = header_size + bd_len; 6530 6531 modepage_info->header.len_left = len_left; 6532 modepage_info->header.len_used = len_used; 6533 6534 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6535} 6536 6537int 6538ctl_mode_sense(struct ctl_scsiio *ctsio) 6539{ 6540 struct ctl_lun *lun; 6541 int pc, page_code, dbd, llba, subpage; 6542 int alloc_len, page_len, header_len, total_len; 6543 struct scsi_mode_block_descr *block_desc; 6544 struct ctl_page_index *page_index; 6545 int control_dev; 6546 6547 dbd = 0; 6548 llba = 0; 6549 block_desc = NULL; 6550 page_index = NULL; 6551 6552 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6553 6554 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6555 6556 if (lun->be_lun->lun_type != T_DIRECT) 6557 control_dev = 1; 6558 else 6559 control_dev = 0; 6560 6561 switch (ctsio->cdb[0]) { 6562 case MODE_SENSE_6: { 6563 struct scsi_mode_sense_6 *cdb; 6564 6565 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6566 6567 header_len = sizeof(struct scsi_mode_hdr_6); 6568 if (cdb->byte2 & SMS_DBD) 6569 dbd = 1; 6570 else 6571 header_len += sizeof(struct scsi_mode_block_descr); 6572 6573 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6574 page_code = cdb->page & SMS_PAGE_CODE; 6575 subpage = cdb->subpage; 6576 alloc_len = cdb->length; 6577 break; 6578 } 6579 case MODE_SENSE_10: { 6580 struct scsi_mode_sense_10 *cdb; 6581 6582 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6583 6584 header_len = sizeof(struct scsi_mode_hdr_10); 6585 6586 if (cdb->byte2 & SMS_DBD) 6587 dbd = 1; 6588 else 6589 header_len += sizeof(struct scsi_mode_block_descr); 6590 if (cdb->byte2 & SMS10_LLBAA) 6591 llba = 1; 6592 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6593 page_code = cdb->page & SMS_PAGE_CODE; 6594 subpage = cdb->subpage; 6595 alloc_len = scsi_2btoul(cdb->length); 6596 break; 6597 } 6598 default: 6599 ctl_set_invalid_opcode(ctsio); 6600 ctl_done((union ctl_io *)ctsio); 6601 return (CTL_RETVAL_COMPLETE); 6602 break; /* NOTREACHED */ 6603 } 6604 6605 /* 6606 * We have to make a first pass through to calculate the size of 6607 * the pages that match the user's query. Then we allocate enough 6608 * memory to hold it, and actually copy the data into the buffer. 6609 */ 6610 switch (page_code) { 6611 case SMS_ALL_PAGES_PAGE: { 6612 int i; 6613 6614 page_len = 0; 6615 6616 /* 6617 * At the moment, values other than 0 and 0xff here are 6618 * reserved according to SPC-3. 6619 */ 6620 if ((subpage != SMS_SUBPAGE_PAGE_0) 6621 && (subpage != SMS_SUBPAGE_ALL)) { 6622 ctl_set_invalid_field(ctsio, 6623 /*sks_valid*/ 1, 6624 /*command*/ 1, 6625 /*field*/ 3, 6626 /*bit_valid*/ 0, 6627 /*bit*/ 0); 6628 ctl_done((union ctl_io *)ctsio); 6629 return (CTL_RETVAL_COMPLETE); 6630 } 6631 6632 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6633 if ((control_dev != 0) 6634 && (lun->mode_pages.index[i].page_flags & 6635 CTL_PAGE_FLAG_DISK_ONLY)) 6636 continue; 6637 6638 /* 6639 * We don't use this subpage if the user didn't 6640 * request all subpages. 6641 */ 6642 if ((lun->mode_pages.index[i].subpage != 0) 6643 && (subpage == SMS_SUBPAGE_PAGE_0)) 6644 continue; 6645 6646#if 0 6647 printf("found page %#x len %d\n", 6648 lun->mode_pages.index[i].page_code & 6649 SMPH_PC_MASK, 6650 lun->mode_pages.index[i].page_len); 6651#endif 6652 page_len += lun->mode_pages.index[i].page_len; 6653 } 6654 break; 6655 } 6656 default: { 6657 int i; 6658 6659 page_len = 0; 6660 6661 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6662 /* Look for the right page code */ 6663 if ((lun->mode_pages.index[i].page_code & 6664 SMPH_PC_MASK) != page_code) 6665 continue; 6666 6667 /* Look for the right subpage or the subpage wildcard*/ 6668 if ((lun->mode_pages.index[i].subpage != subpage) 6669 && (subpage != SMS_SUBPAGE_ALL)) 6670 continue; 6671 6672 /* Make sure the page is supported for this dev type */ 6673 if ((control_dev != 0) 6674 && (lun->mode_pages.index[i].page_flags & 6675 CTL_PAGE_FLAG_DISK_ONLY)) 6676 continue; 6677 6678#if 0 6679 printf("found page %#x len %d\n", 6680 lun->mode_pages.index[i].page_code & 6681 SMPH_PC_MASK, 6682 lun->mode_pages.index[i].page_len); 6683#endif 6684 6685 page_len += lun->mode_pages.index[i].page_len; 6686 } 6687 6688 if (page_len == 0) { 6689 ctl_set_invalid_field(ctsio, 6690 /*sks_valid*/ 1, 6691 /*command*/ 1, 6692 /*field*/ 2, 6693 /*bit_valid*/ 1, 6694 /*bit*/ 5); 6695 ctl_done((union ctl_io *)ctsio); 6696 return (CTL_RETVAL_COMPLETE); 6697 } 6698 break; 6699 } 6700 } 6701 6702 total_len = header_len + page_len; 6703#if 0 6704 printf("header_len = %d, page_len = %d, total_len = %d\n", 6705 header_len, page_len, total_len); 6706#endif 6707 6708 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6709 ctsio->kern_sg_entries = 0; 6710 ctsio->kern_data_resid = 0; 6711 ctsio->kern_rel_offset = 0; 6712 if (total_len < alloc_len) { 6713 ctsio->residual = alloc_len - total_len; 6714 ctsio->kern_data_len = total_len; 6715 ctsio->kern_total_len = total_len; 6716 } else { 6717 ctsio->residual = 0; 6718 ctsio->kern_data_len = alloc_len; 6719 ctsio->kern_total_len = alloc_len; 6720 } 6721 6722 switch (ctsio->cdb[0]) { 6723 case MODE_SENSE_6: { 6724 struct scsi_mode_hdr_6 *header; 6725 6726 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6727 6728 header->datalen = ctl_min(total_len - 1, 254); 6729 if (control_dev == 0) { 6730 header->dev_specific = 0x10; /* DPOFUA */ 6731 if ((lun->flags & CTL_LUN_READONLY) || 6732 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6733 .eca_and_aen & SCP_SWP) != 0) 6734 header->dev_specific |= 0x80; /* WP */ 6735 } 6736 if (dbd) 6737 header->block_descr_len = 0; 6738 else 6739 header->block_descr_len = 6740 sizeof(struct scsi_mode_block_descr); 6741 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6742 break; 6743 } 6744 case MODE_SENSE_10: { 6745 struct scsi_mode_hdr_10 *header; 6746 int datalen; 6747 6748 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6749 6750 datalen = ctl_min(total_len - 2, 65533); 6751 scsi_ulto2b(datalen, header->datalen); 6752 if (control_dev == 0) { 6753 header->dev_specific = 0x10; /* DPOFUA */ 6754 if ((lun->flags & CTL_LUN_READONLY) || 6755 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6756 .eca_and_aen & SCP_SWP) != 0) 6757 header->dev_specific |= 0x80; /* WP */ 6758 } 6759 if (dbd) 6760 scsi_ulto2b(0, header->block_descr_len); 6761 else 6762 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 6763 header->block_descr_len); 6764 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6765 break; 6766 } 6767 default: 6768 panic("invalid CDB type %#x", ctsio->cdb[0]); 6769 break; /* NOTREACHED */ 6770 } 6771 6772 /* 6773 * If we've got a disk, use its blocksize in the block 6774 * descriptor. Otherwise, just set it to 0. 6775 */ 6776 if (dbd == 0) { 6777 if (control_dev == 0) 6778 scsi_ulto3b(lun->be_lun->blocksize, 6779 block_desc->block_len); 6780 else 6781 scsi_ulto3b(0, block_desc->block_len); 6782 } 6783 6784 switch (page_code) { 6785 case SMS_ALL_PAGES_PAGE: { 6786 int i, data_used; 6787 6788 data_used = header_len; 6789 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6790 struct ctl_page_index *page_index; 6791 6792 page_index = &lun->mode_pages.index[i]; 6793 6794 if ((control_dev != 0) 6795 && (page_index->page_flags & 6796 CTL_PAGE_FLAG_DISK_ONLY)) 6797 continue; 6798 6799 /* 6800 * We don't use this subpage if the user didn't 6801 * request all subpages. We already checked (above) 6802 * to make sure the user only specified a subpage 6803 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 6804 */ 6805 if ((page_index->subpage != 0) 6806 && (subpage == SMS_SUBPAGE_PAGE_0)) 6807 continue; 6808 6809 /* 6810 * Call the handler, if it exists, to update the 6811 * page to the latest values. 6812 */ 6813 if (page_index->sense_handler != NULL) 6814 page_index->sense_handler(ctsio, page_index,pc); 6815 6816 memcpy(ctsio->kern_data_ptr + data_used, 6817 page_index->page_data + 6818 (page_index->page_len * pc), 6819 page_index->page_len); 6820 data_used += page_index->page_len; 6821 } 6822 break; 6823 } 6824 default: { 6825 int i, data_used; 6826 6827 data_used = header_len; 6828 6829 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6830 struct ctl_page_index *page_index; 6831 6832 page_index = &lun->mode_pages.index[i]; 6833 6834 /* Look for the right page code */ 6835 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6836 continue; 6837 6838 /* Look for the right subpage or the subpage wildcard*/ 6839 if ((page_index->subpage != subpage) 6840 && (subpage != SMS_SUBPAGE_ALL)) 6841 continue; 6842 6843 /* Make sure the page is supported for this dev type */ 6844 if ((control_dev != 0) 6845 && (page_index->page_flags & 6846 CTL_PAGE_FLAG_DISK_ONLY)) 6847 continue; 6848 6849 /* 6850 * Call the handler, if it exists, to update the 6851 * page to the latest values. 6852 */ 6853 if (page_index->sense_handler != NULL) 6854 page_index->sense_handler(ctsio, page_index,pc); 6855 6856 memcpy(ctsio->kern_data_ptr + data_used, 6857 page_index->page_data + 6858 (page_index->page_len * pc), 6859 page_index->page_len); 6860 data_used += page_index->page_len; 6861 } 6862 break; 6863 } 6864 } 6865 6866 ctl_set_success(ctsio); 6867 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6868 ctsio->be_move_done = ctl_config_move_done; 6869 ctl_datamove((union ctl_io *)ctsio); 6870 return (CTL_RETVAL_COMPLETE); 6871} 6872 6873int 6874ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio, 6875 struct ctl_page_index *page_index, 6876 int pc) 6877{ 6878 struct ctl_lun *lun; 6879 struct scsi_log_param_header *phdr; 6880 uint8_t *data; 6881 uint64_t val; 6882 6883 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6884 data = page_index->page_data; 6885 6886 if (lun->backend->lun_attr != NULL && 6887 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksavail")) 6888 != UINT64_MAX) { 6889 phdr = (struct scsi_log_param_header *)data; 6890 scsi_ulto2b(0x0001, phdr->param_code); 6891 phdr->param_control = SLP_LBIN | SLP_LP; 6892 phdr->param_len = 8; 6893 data = (uint8_t *)(phdr + 1); 6894 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6895 data[4] = 0x02; /* per-pool */ 6896 data += phdr->param_len; 6897 } 6898 6899 if (lun->backend->lun_attr != NULL && 6900 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksused")) 6901 != UINT64_MAX) { 6902 phdr = (struct scsi_log_param_header *)data; 6903 scsi_ulto2b(0x0002, phdr->param_code); 6904 phdr->param_control = SLP_LBIN | SLP_LP; 6905 phdr->param_len = 8; 6906 data = (uint8_t *)(phdr + 1); 6907 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6908 data[4] = 0x01; /* per-LUN */ 6909 data += phdr->param_len; 6910 } 6911 6912 if (lun->backend->lun_attr != NULL && 6913 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksavail")) 6914 != UINT64_MAX) { 6915 phdr = (struct scsi_log_param_header *)data; 6916 scsi_ulto2b(0x00f1, phdr->param_code); 6917 phdr->param_control = SLP_LBIN | SLP_LP; 6918 phdr->param_len = 8; 6919 data = (uint8_t *)(phdr + 1); 6920 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6921 data[4] = 0x02; /* per-pool */ 6922 data += phdr->param_len; 6923 } 6924 6925 if (lun->backend->lun_attr != NULL && 6926 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksused")) 6927 != UINT64_MAX) { 6928 phdr = (struct scsi_log_param_header *)data; 6929 scsi_ulto2b(0x00f2, phdr->param_code); 6930 phdr->param_control = SLP_LBIN | SLP_LP; 6931 phdr->param_len = 8; 6932 data = (uint8_t *)(phdr + 1); 6933 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6934 data[4] = 0x02; /* per-pool */ 6935 data += phdr->param_len; 6936 } 6937 6938 page_index->page_len = data - page_index->page_data; 6939 return (0); 6940} 6941 6942int 6943ctl_log_sense(struct ctl_scsiio *ctsio) 6944{ 6945 struct ctl_lun *lun; 6946 int i, pc, page_code, subpage; 6947 int alloc_len, total_len; 6948 struct ctl_page_index *page_index; 6949 struct scsi_log_sense *cdb; 6950 struct scsi_log_header *header; 6951 6952 CTL_DEBUG_PRINT(("ctl_log_sense\n")); 6953 6954 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6955 cdb = (struct scsi_log_sense *)ctsio->cdb; 6956 pc = (cdb->page & SLS_PAGE_CTRL_MASK) >> 6; 6957 page_code = cdb->page & SLS_PAGE_CODE; 6958 subpage = cdb->subpage; 6959 alloc_len = scsi_2btoul(cdb->length); 6960 6961 page_index = NULL; 6962 for (i = 0; i < CTL_NUM_LOG_PAGES; i++) { 6963 page_index = &lun->log_pages.index[i]; 6964 6965 /* Look for the right page code */ 6966 if ((page_index->page_code & SL_PAGE_CODE) != page_code) 6967 continue; 6968 6969 /* Look for the right subpage or the subpage wildcard*/ 6970 if (page_index->subpage != subpage) 6971 continue; 6972 6973 break; 6974 } 6975 if (i >= CTL_NUM_LOG_PAGES) { 6976 ctl_set_invalid_field(ctsio, 6977 /*sks_valid*/ 1, 6978 /*command*/ 1, 6979 /*field*/ 2, 6980 /*bit_valid*/ 0, 6981 /*bit*/ 0); 6982 ctl_done((union ctl_io *)ctsio); 6983 return (CTL_RETVAL_COMPLETE); 6984 } 6985 6986 total_len = sizeof(struct scsi_log_header) + page_index->page_len; 6987 6988 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6989 ctsio->kern_sg_entries = 0; 6990 ctsio->kern_data_resid = 0; 6991 ctsio->kern_rel_offset = 0; 6992 if (total_len < alloc_len) { 6993 ctsio->residual = alloc_len - total_len; 6994 ctsio->kern_data_len = total_len; 6995 ctsio->kern_total_len = total_len; 6996 } else { 6997 ctsio->residual = 0; 6998 ctsio->kern_data_len = alloc_len; 6999 ctsio->kern_total_len = alloc_len; 7000 } 7001 7002 header = (struct scsi_log_header *)ctsio->kern_data_ptr; 7003 header->page = page_index->page_code; 7004 if (page_index->subpage) { 7005 header->page |= SL_SPF; 7006 header->subpage = page_index->subpage; 7007 } 7008 scsi_ulto2b(page_index->page_len, header->datalen); 7009 7010 /* 7011 * Call the handler, if it exists, to update the 7012 * page to the latest values. 7013 */ 7014 if (page_index->sense_handler != NULL) 7015 page_index->sense_handler(ctsio, page_index, pc); 7016 7017 memcpy(header + 1, page_index->page_data, page_index->page_len); 7018 7019 ctl_set_success(ctsio); 7020 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7021 ctsio->be_move_done = ctl_config_move_done; 7022 ctl_datamove((union ctl_io *)ctsio); 7023 return (CTL_RETVAL_COMPLETE); 7024} 7025 7026int 7027ctl_read_capacity(struct ctl_scsiio *ctsio) 7028{ 7029 struct scsi_read_capacity *cdb; 7030 struct scsi_read_capacity_data *data; 7031 struct ctl_lun *lun; 7032 uint32_t lba; 7033 7034 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 7035 7036 cdb = (struct scsi_read_capacity *)ctsio->cdb; 7037 7038 lba = scsi_4btoul(cdb->addr); 7039 if (((cdb->pmi & SRC_PMI) == 0) 7040 && (lba != 0)) { 7041 ctl_set_invalid_field(/*ctsio*/ ctsio, 7042 /*sks_valid*/ 1, 7043 /*command*/ 1, 7044 /*field*/ 2, 7045 /*bit_valid*/ 0, 7046 /*bit*/ 0); 7047 ctl_done((union ctl_io *)ctsio); 7048 return (CTL_RETVAL_COMPLETE); 7049 } 7050 7051 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7052 7053 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7054 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 7055 ctsio->residual = 0; 7056 ctsio->kern_data_len = sizeof(*data); 7057 ctsio->kern_total_len = sizeof(*data); 7058 ctsio->kern_data_resid = 0; 7059 ctsio->kern_rel_offset = 0; 7060 ctsio->kern_sg_entries = 0; 7061 7062 /* 7063 * If the maximum LBA is greater than 0xfffffffe, the user must 7064 * issue a SERVICE ACTION IN (16) command, with the read capacity 7065 * serivce action set. 7066 */ 7067 if (lun->be_lun->maxlba > 0xfffffffe) 7068 scsi_ulto4b(0xffffffff, data->addr); 7069 else 7070 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 7071 7072 /* 7073 * XXX KDM this may not be 512 bytes... 7074 */ 7075 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7076 7077 ctl_set_success(ctsio); 7078 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7079 ctsio->be_move_done = ctl_config_move_done; 7080 ctl_datamove((union ctl_io *)ctsio); 7081 return (CTL_RETVAL_COMPLETE); 7082} 7083 7084int 7085ctl_read_capacity_16(struct ctl_scsiio *ctsio) 7086{ 7087 struct scsi_read_capacity_16 *cdb; 7088 struct scsi_read_capacity_data_long *data; 7089 struct ctl_lun *lun; 7090 uint64_t lba; 7091 uint32_t alloc_len; 7092 7093 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 7094 7095 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 7096 7097 alloc_len = scsi_4btoul(cdb->alloc_len); 7098 lba = scsi_8btou64(cdb->addr); 7099 7100 if ((cdb->reladr & SRC16_PMI) 7101 && (lba != 0)) { 7102 ctl_set_invalid_field(/*ctsio*/ ctsio, 7103 /*sks_valid*/ 1, 7104 /*command*/ 1, 7105 /*field*/ 2, 7106 /*bit_valid*/ 0, 7107 /*bit*/ 0); 7108 ctl_done((union ctl_io *)ctsio); 7109 return (CTL_RETVAL_COMPLETE); 7110 } 7111 7112 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7113 7114 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7115 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 7116 7117 if (sizeof(*data) < alloc_len) { 7118 ctsio->residual = alloc_len - sizeof(*data); 7119 ctsio->kern_data_len = sizeof(*data); 7120 ctsio->kern_total_len = sizeof(*data); 7121 } else { 7122 ctsio->residual = 0; 7123 ctsio->kern_data_len = alloc_len; 7124 ctsio->kern_total_len = alloc_len; 7125 } 7126 ctsio->kern_data_resid = 0; 7127 ctsio->kern_rel_offset = 0; 7128 ctsio->kern_sg_entries = 0; 7129 7130 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7131 /* XXX KDM this may not be 512 bytes... */ 7132 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7133 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7134 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7135 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7136 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 7137 7138 ctl_set_success(ctsio); 7139 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7140 ctsio->be_move_done = ctl_config_move_done; 7141 ctl_datamove((union ctl_io *)ctsio); 7142 return (CTL_RETVAL_COMPLETE); 7143} 7144 7145int 7146ctl_read_defect(struct ctl_scsiio *ctsio) 7147{ 7148 struct scsi_read_defect_data_10 *ccb10; 7149 struct scsi_read_defect_data_12 *ccb12; 7150 struct scsi_read_defect_data_hdr_10 *data10; 7151 struct scsi_read_defect_data_hdr_12 *data12; 7152 uint32_t alloc_len, data_len; 7153 uint8_t format; 7154 7155 CTL_DEBUG_PRINT(("ctl_read_defect\n")); 7156 7157 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7158 ccb10 = (struct scsi_read_defect_data_10 *)&ctsio->cdb; 7159 format = ccb10->format; 7160 alloc_len = scsi_2btoul(ccb10->alloc_length); 7161 data_len = sizeof(*data10); 7162 } else { 7163 ccb12 = (struct scsi_read_defect_data_12 *)&ctsio->cdb; 7164 format = ccb12->format; 7165 alloc_len = scsi_4btoul(ccb12->alloc_length); 7166 data_len = sizeof(*data12); 7167 } 7168 if (alloc_len == 0) { 7169 ctl_set_success(ctsio); 7170 ctl_done((union ctl_io *)ctsio); 7171 return (CTL_RETVAL_COMPLETE); 7172 } 7173 7174 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 7175 if (data_len < alloc_len) { 7176 ctsio->residual = alloc_len - data_len; 7177 ctsio->kern_data_len = data_len; 7178 ctsio->kern_total_len = data_len; 7179 } else { 7180 ctsio->residual = 0; 7181 ctsio->kern_data_len = alloc_len; 7182 ctsio->kern_total_len = alloc_len; 7183 } 7184 ctsio->kern_data_resid = 0; 7185 ctsio->kern_rel_offset = 0; 7186 ctsio->kern_sg_entries = 0; 7187 7188 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7189 data10 = (struct scsi_read_defect_data_hdr_10 *) 7190 ctsio->kern_data_ptr; 7191 data10->format = format; 7192 scsi_ulto2b(0, data10->length); 7193 } else { 7194 data12 = (struct scsi_read_defect_data_hdr_12 *) 7195 ctsio->kern_data_ptr; 7196 data12->format = format; 7197 scsi_ulto2b(0, data12->generation); 7198 scsi_ulto4b(0, data12->length); 7199 } 7200 7201 ctl_set_success(ctsio); 7202 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7203 ctsio->be_move_done = ctl_config_move_done; 7204 ctl_datamove((union ctl_io *)ctsio); 7205 return (CTL_RETVAL_COMPLETE); 7206} 7207 7208int 7209ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7210{ 7211 struct scsi_maintenance_in *cdb; 7212 int retval; 7213 int alloc_len, ext, total_len = 0, g, p, pc, pg, gs, os; 7214 int num_target_port_groups, num_target_ports; 7215 struct ctl_lun *lun; 7216 struct ctl_softc *softc; 7217 struct ctl_port *port; 7218 struct scsi_target_group_data *rtg_ptr; 7219 struct scsi_target_group_data_extended *rtg_ext_ptr; 7220 struct scsi_target_port_group_descriptor *tpg_desc; 7221 7222 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7223 7224 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7225 softc = control_softc; 7226 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7227 7228 retval = CTL_RETVAL_COMPLETE; 7229 7230 switch (cdb->byte2 & STG_PDF_MASK) { 7231 case STG_PDF_LENGTH: 7232 ext = 0; 7233 break; 7234 case STG_PDF_EXTENDED: 7235 ext = 1; 7236 break; 7237 default: 7238 ctl_set_invalid_field(/*ctsio*/ ctsio, 7239 /*sks_valid*/ 1, 7240 /*command*/ 1, 7241 /*field*/ 2, 7242 /*bit_valid*/ 1, 7243 /*bit*/ 5); 7244 ctl_done((union ctl_io *)ctsio); 7245 return(retval); 7246 } 7247 7248 if (softc->is_single) 7249 num_target_port_groups = 1; 7250 else 7251 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7252 num_target_ports = 0; 7253 mtx_lock(&softc->ctl_lock); 7254 STAILQ_FOREACH(port, &softc->port_list, links) { 7255 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7256 continue; 7257 if (ctl_map_lun_back(port->targ_port, lun->lun) >= CTL_MAX_LUNS) 7258 continue; 7259 num_target_ports++; 7260 } 7261 mtx_unlock(&softc->ctl_lock); 7262 7263 if (ext) 7264 total_len = sizeof(struct scsi_target_group_data_extended); 7265 else 7266 total_len = sizeof(struct scsi_target_group_data); 7267 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7268 num_target_port_groups + 7269 sizeof(struct scsi_target_port_descriptor) * 7270 num_target_ports * num_target_port_groups; 7271 7272 alloc_len = scsi_4btoul(cdb->length); 7273 7274 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7275 7276 ctsio->kern_sg_entries = 0; 7277 7278 if (total_len < alloc_len) { 7279 ctsio->residual = alloc_len - total_len; 7280 ctsio->kern_data_len = total_len; 7281 ctsio->kern_total_len = total_len; 7282 } else { 7283 ctsio->residual = 0; 7284 ctsio->kern_data_len = alloc_len; 7285 ctsio->kern_total_len = alloc_len; 7286 } 7287 ctsio->kern_data_resid = 0; 7288 ctsio->kern_rel_offset = 0; 7289 7290 if (ext) { 7291 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7292 ctsio->kern_data_ptr; 7293 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7294 rtg_ext_ptr->format_type = 0x10; 7295 rtg_ext_ptr->implicit_transition_time = 0; 7296 tpg_desc = &rtg_ext_ptr->groups[0]; 7297 } else { 7298 rtg_ptr = (struct scsi_target_group_data *) 7299 ctsio->kern_data_ptr; 7300 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7301 tpg_desc = &rtg_ptr->groups[0]; 7302 } 7303 7304 mtx_lock(&softc->ctl_lock); 7305 pg = softc->port_offset / CTL_MAX_PORTS; 7306 if (softc->flags & CTL_FLAG_ACTIVE_SHELF) { 7307 if (softc->ha_mode == CTL_HA_MODE_ACT_STBY) { 7308 gs = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7309 os = TPG_ASYMMETRIC_ACCESS_STANDBY; 7310 } else if (lun->flags & CTL_LUN_PRIMARY_SC) { 7311 gs = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7312 os = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7313 } else { 7314 gs = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7315 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7316 } 7317 } else { 7318 gs = TPG_ASYMMETRIC_ACCESS_STANDBY; 7319 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7320 } 7321 for (g = 0; g < num_target_port_groups; g++) { 7322 tpg_desc->pref_state = (g == pg) ? gs : os; 7323 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP; 7324 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7325 tpg_desc->status = TPG_IMPLICIT; 7326 pc = 0; 7327 STAILQ_FOREACH(port, &softc->port_list, links) { 7328 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7329 continue; 7330 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 7331 CTL_MAX_LUNS) 7332 continue; 7333 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 7334 scsi_ulto2b(p, tpg_desc->descriptors[pc]. 7335 relative_target_port_identifier); 7336 pc++; 7337 } 7338 tpg_desc->target_port_count = pc; 7339 tpg_desc = (struct scsi_target_port_group_descriptor *) 7340 &tpg_desc->descriptors[pc]; 7341 } 7342 mtx_unlock(&softc->ctl_lock); 7343 7344 ctl_set_success(ctsio); 7345 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7346 ctsio->be_move_done = ctl_config_move_done; 7347 ctl_datamove((union ctl_io *)ctsio); 7348 return(retval); 7349} 7350 7351int 7352ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7353{ 7354 struct ctl_lun *lun; 7355 struct scsi_report_supported_opcodes *cdb; 7356 const struct ctl_cmd_entry *entry, *sentry; 7357 struct scsi_report_supported_opcodes_all *all; 7358 struct scsi_report_supported_opcodes_descr *descr; 7359 struct scsi_report_supported_opcodes_one *one; 7360 int retval; 7361 int alloc_len, total_len; 7362 int opcode, service_action, i, j, num; 7363 7364 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7365 7366 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7367 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7368 7369 retval = CTL_RETVAL_COMPLETE; 7370 7371 opcode = cdb->requested_opcode; 7372 service_action = scsi_2btoul(cdb->requested_service_action); 7373 switch (cdb->options & RSO_OPTIONS_MASK) { 7374 case RSO_OPTIONS_ALL: 7375 num = 0; 7376 for (i = 0; i < 256; i++) { 7377 entry = &ctl_cmd_table[i]; 7378 if (entry->flags & CTL_CMD_FLAG_SA5) { 7379 for (j = 0; j < 32; j++) { 7380 sentry = &((const struct ctl_cmd_entry *) 7381 entry->execute)[j]; 7382 if (ctl_cmd_applicable( 7383 lun->be_lun->lun_type, sentry)) 7384 num++; 7385 } 7386 } else { 7387 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7388 entry)) 7389 num++; 7390 } 7391 } 7392 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7393 num * sizeof(struct scsi_report_supported_opcodes_descr); 7394 break; 7395 case RSO_OPTIONS_OC: 7396 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7397 ctl_set_invalid_field(/*ctsio*/ ctsio, 7398 /*sks_valid*/ 1, 7399 /*command*/ 1, 7400 /*field*/ 2, 7401 /*bit_valid*/ 1, 7402 /*bit*/ 2); 7403 ctl_done((union ctl_io *)ctsio); 7404 return (CTL_RETVAL_COMPLETE); 7405 } 7406 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7407 break; 7408 case RSO_OPTIONS_OC_SA: 7409 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7410 service_action >= 32) { 7411 ctl_set_invalid_field(/*ctsio*/ ctsio, 7412 /*sks_valid*/ 1, 7413 /*command*/ 1, 7414 /*field*/ 2, 7415 /*bit_valid*/ 1, 7416 /*bit*/ 2); 7417 ctl_done((union ctl_io *)ctsio); 7418 return (CTL_RETVAL_COMPLETE); 7419 } 7420 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7421 break; 7422 default: 7423 ctl_set_invalid_field(/*ctsio*/ ctsio, 7424 /*sks_valid*/ 1, 7425 /*command*/ 1, 7426 /*field*/ 2, 7427 /*bit_valid*/ 1, 7428 /*bit*/ 2); 7429 ctl_done((union ctl_io *)ctsio); 7430 return (CTL_RETVAL_COMPLETE); 7431 } 7432 7433 alloc_len = scsi_4btoul(cdb->length); 7434 7435 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7436 7437 ctsio->kern_sg_entries = 0; 7438 7439 if (total_len < alloc_len) { 7440 ctsio->residual = alloc_len - total_len; 7441 ctsio->kern_data_len = total_len; 7442 ctsio->kern_total_len = total_len; 7443 } else { 7444 ctsio->residual = 0; 7445 ctsio->kern_data_len = alloc_len; 7446 ctsio->kern_total_len = alloc_len; 7447 } 7448 ctsio->kern_data_resid = 0; 7449 ctsio->kern_rel_offset = 0; 7450 7451 switch (cdb->options & RSO_OPTIONS_MASK) { 7452 case RSO_OPTIONS_ALL: 7453 all = (struct scsi_report_supported_opcodes_all *) 7454 ctsio->kern_data_ptr; 7455 num = 0; 7456 for (i = 0; i < 256; i++) { 7457 entry = &ctl_cmd_table[i]; 7458 if (entry->flags & CTL_CMD_FLAG_SA5) { 7459 for (j = 0; j < 32; j++) { 7460 sentry = &((const struct ctl_cmd_entry *) 7461 entry->execute)[j]; 7462 if (!ctl_cmd_applicable( 7463 lun->be_lun->lun_type, sentry)) 7464 continue; 7465 descr = &all->descr[num++]; 7466 descr->opcode = i; 7467 scsi_ulto2b(j, descr->service_action); 7468 descr->flags = RSO_SERVACTV; 7469 scsi_ulto2b(sentry->length, 7470 descr->cdb_length); 7471 } 7472 } else { 7473 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7474 entry)) 7475 continue; 7476 descr = &all->descr[num++]; 7477 descr->opcode = i; 7478 scsi_ulto2b(0, descr->service_action); 7479 descr->flags = 0; 7480 scsi_ulto2b(entry->length, descr->cdb_length); 7481 } 7482 } 7483 scsi_ulto4b( 7484 num * sizeof(struct scsi_report_supported_opcodes_descr), 7485 all->length); 7486 break; 7487 case RSO_OPTIONS_OC: 7488 one = (struct scsi_report_supported_opcodes_one *) 7489 ctsio->kern_data_ptr; 7490 entry = &ctl_cmd_table[opcode]; 7491 goto fill_one; 7492 case RSO_OPTIONS_OC_SA: 7493 one = (struct scsi_report_supported_opcodes_one *) 7494 ctsio->kern_data_ptr; 7495 entry = &ctl_cmd_table[opcode]; 7496 entry = &((const struct ctl_cmd_entry *) 7497 entry->execute)[service_action]; 7498fill_one: 7499 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7500 one->support = 3; 7501 scsi_ulto2b(entry->length, one->cdb_length); 7502 one->cdb_usage[0] = opcode; 7503 memcpy(&one->cdb_usage[1], entry->usage, 7504 entry->length - 1); 7505 } else 7506 one->support = 1; 7507 break; 7508 } 7509 7510 ctl_set_success(ctsio); 7511 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7512 ctsio->be_move_done = ctl_config_move_done; 7513 ctl_datamove((union ctl_io *)ctsio); 7514 return(retval); 7515} 7516 7517int 7518ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7519{ 7520 struct scsi_report_supported_tmf *cdb; 7521 struct scsi_report_supported_tmf_data *data; 7522 int retval; 7523 int alloc_len, total_len; 7524 7525 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7526 7527 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7528 7529 retval = CTL_RETVAL_COMPLETE; 7530 7531 total_len = sizeof(struct scsi_report_supported_tmf_data); 7532 alloc_len = scsi_4btoul(cdb->length); 7533 7534 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7535 7536 ctsio->kern_sg_entries = 0; 7537 7538 if (total_len < alloc_len) { 7539 ctsio->residual = alloc_len - total_len; 7540 ctsio->kern_data_len = total_len; 7541 ctsio->kern_total_len = total_len; 7542 } else { 7543 ctsio->residual = 0; 7544 ctsio->kern_data_len = alloc_len; 7545 ctsio->kern_total_len = alloc_len; 7546 } 7547 ctsio->kern_data_resid = 0; 7548 ctsio->kern_rel_offset = 0; 7549 7550 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7551 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_TRS; 7552 data->byte2 |= RST_ITNRS; 7553 7554 ctl_set_success(ctsio); 7555 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7556 ctsio->be_move_done = ctl_config_move_done; 7557 ctl_datamove((union ctl_io *)ctsio); 7558 return (retval); 7559} 7560 7561int 7562ctl_report_timestamp(struct ctl_scsiio *ctsio) 7563{ 7564 struct scsi_report_timestamp *cdb; 7565 struct scsi_report_timestamp_data *data; 7566 struct timeval tv; 7567 int64_t timestamp; 7568 int retval; 7569 int alloc_len, total_len; 7570 7571 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7572 7573 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7574 7575 retval = CTL_RETVAL_COMPLETE; 7576 7577 total_len = sizeof(struct scsi_report_timestamp_data); 7578 alloc_len = scsi_4btoul(cdb->length); 7579 7580 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7581 7582 ctsio->kern_sg_entries = 0; 7583 7584 if (total_len < alloc_len) { 7585 ctsio->residual = alloc_len - total_len; 7586 ctsio->kern_data_len = total_len; 7587 ctsio->kern_total_len = total_len; 7588 } else { 7589 ctsio->residual = 0; 7590 ctsio->kern_data_len = alloc_len; 7591 ctsio->kern_total_len = alloc_len; 7592 } 7593 ctsio->kern_data_resid = 0; 7594 ctsio->kern_rel_offset = 0; 7595 7596 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7597 scsi_ulto2b(sizeof(*data) - 2, data->length); 7598 data->origin = RTS_ORIG_OUTSIDE; 7599 getmicrotime(&tv); 7600 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7601 scsi_ulto4b(timestamp >> 16, data->timestamp); 7602 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7603 7604 ctl_set_success(ctsio); 7605 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7606 ctsio->be_move_done = ctl_config_move_done; 7607 ctl_datamove((union ctl_io *)ctsio); 7608 return (retval); 7609} 7610 7611int 7612ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7613{ 7614 struct scsi_per_res_in *cdb; 7615 int alloc_len, total_len = 0; 7616 /* struct scsi_per_res_in_rsrv in_data; */ 7617 struct ctl_lun *lun; 7618 struct ctl_softc *softc; 7619 7620 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7621 7622 softc = control_softc; 7623 7624 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7625 7626 alloc_len = scsi_2btoul(cdb->length); 7627 7628 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7629 7630retry: 7631 mtx_lock(&lun->lun_lock); 7632 switch (cdb->action) { 7633 case SPRI_RK: /* read keys */ 7634 total_len = sizeof(struct scsi_per_res_in_keys) + 7635 lun->pr_key_count * 7636 sizeof(struct scsi_per_res_key); 7637 break; 7638 case SPRI_RR: /* read reservation */ 7639 if (lun->flags & CTL_LUN_PR_RESERVED) 7640 total_len = sizeof(struct scsi_per_res_in_rsrv); 7641 else 7642 total_len = sizeof(struct scsi_per_res_in_header); 7643 break; 7644 case SPRI_RC: /* report capabilities */ 7645 total_len = sizeof(struct scsi_per_res_cap); 7646 break; 7647 case SPRI_RS: /* read full status */ 7648 total_len = sizeof(struct scsi_per_res_in_header) + 7649 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7650 lun->pr_key_count; 7651 break; 7652 default: 7653 panic("Invalid PR type %x", cdb->action); 7654 } 7655 mtx_unlock(&lun->lun_lock); 7656 7657 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7658 7659 if (total_len < alloc_len) { 7660 ctsio->residual = alloc_len - total_len; 7661 ctsio->kern_data_len = total_len; 7662 ctsio->kern_total_len = total_len; 7663 } else { 7664 ctsio->residual = 0; 7665 ctsio->kern_data_len = alloc_len; 7666 ctsio->kern_total_len = alloc_len; 7667 } 7668 7669 ctsio->kern_data_resid = 0; 7670 ctsio->kern_rel_offset = 0; 7671 ctsio->kern_sg_entries = 0; 7672 7673 mtx_lock(&lun->lun_lock); 7674 switch (cdb->action) { 7675 case SPRI_RK: { // read keys 7676 struct scsi_per_res_in_keys *res_keys; 7677 int i, key_count; 7678 7679 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7680 7681 /* 7682 * We had to drop the lock to allocate our buffer, which 7683 * leaves time for someone to come in with another 7684 * persistent reservation. (That is unlikely, though, 7685 * since this should be the only persistent reservation 7686 * command active right now.) 7687 */ 7688 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7689 (lun->pr_key_count * 7690 sizeof(struct scsi_per_res_key)))){ 7691 mtx_unlock(&lun->lun_lock); 7692 free(ctsio->kern_data_ptr, M_CTL); 7693 printf("%s: reservation length changed, retrying\n", 7694 __func__); 7695 goto retry; 7696 } 7697 7698 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7699 7700 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7701 lun->pr_key_count, res_keys->header.length); 7702 7703 for (i = 0, key_count = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7704 if (lun->pr_keys[i] == 0) 7705 continue; 7706 7707 /* 7708 * We used lun->pr_key_count to calculate the 7709 * size to allocate. If it turns out the number of 7710 * initiators with the registered flag set is 7711 * larger than that (i.e. they haven't been kept in 7712 * sync), we've got a problem. 7713 */ 7714 if (key_count >= lun->pr_key_count) { 7715#ifdef NEEDTOPORT 7716 csevent_log(CSC_CTL | CSC_SHELF_SW | 7717 CTL_PR_ERROR, 7718 csevent_LogType_Fault, 7719 csevent_AlertLevel_Yellow, 7720 csevent_FRU_ShelfController, 7721 csevent_FRU_Firmware, 7722 csevent_FRU_Unknown, 7723 "registered keys %d >= key " 7724 "count %d", key_count, 7725 lun->pr_key_count); 7726#endif 7727 key_count++; 7728 continue; 7729 } 7730 scsi_u64to8b(lun->pr_keys[i], 7731 res_keys->keys[key_count].key); 7732 key_count++; 7733 } 7734 break; 7735 } 7736 case SPRI_RR: { // read reservation 7737 struct scsi_per_res_in_rsrv *res; 7738 int tmp_len, header_only; 7739 7740 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7741 7742 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7743 7744 if (lun->flags & CTL_LUN_PR_RESERVED) 7745 { 7746 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7747 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7748 res->header.length); 7749 header_only = 0; 7750 } else { 7751 tmp_len = sizeof(struct scsi_per_res_in_header); 7752 scsi_ulto4b(0, res->header.length); 7753 header_only = 1; 7754 } 7755 7756 /* 7757 * We had to drop the lock to allocate our buffer, which 7758 * leaves time for someone to come in with another 7759 * persistent reservation. (That is unlikely, though, 7760 * since this should be the only persistent reservation 7761 * command active right now.) 7762 */ 7763 if (tmp_len != total_len) { 7764 mtx_unlock(&lun->lun_lock); 7765 free(ctsio->kern_data_ptr, M_CTL); 7766 printf("%s: reservation status changed, retrying\n", 7767 __func__); 7768 goto retry; 7769 } 7770 7771 /* 7772 * No reservation held, so we're done. 7773 */ 7774 if (header_only != 0) 7775 break; 7776 7777 /* 7778 * If the registration is an All Registrants type, the key 7779 * is 0, since it doesn't really matter. 7780 */ 7781 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7782 scsi_u64to8b(lun->pr_keys[lun->pr_res_idx], 7783 res->data.reservation); 7784 } 7785 res->data.scopetype = lun->res_type; 7786 break; 7787 } 7788 case SPRI_RC: //report capabilities 7789 { 7790 struct scsi_per_res_cap *res_cap; 7791 uint16_t type_mask; 7792 7793 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7794 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7795 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_5; 7796 type_mask = SPRI_TM_WR_EX_AR | 7797 SPRI_TM_EX_AC_RO | 7798 SPRI_TM_WR_EX_RO | 7799 SPRI_TM_EX_AC | 7800 SPRI_TM_WR_EX | 7801 SPRI_TM_EX_AC_AR; 7802 scsi_ulto2b(type_mask, res_cap->type_mask); 7803 break; 7804 } 7805 case SPRI_RS: { // read full status 7806 struct scsi_per_res_in_full *res_status; 7807 struct scsi_per_res_in_full_desc *res_desc; 7808 struct ctl_port *port; 7809 int i, len; 7810 7811 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7812 7813 /* 7814 * We had to drop the lock to allocate our buffer, which 7815 * leaves time for someone to come in with another 7816 * persistent reservation. (That is unlikely, though, 7817 * since this should be the only persistent reservation 7818 * command active right now.) 7819 */ 7820 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7821 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7822 lun->pr_key_count)){ 7823 mtx_unlock(&lun->lun_lock); 7824 free(ctsio->kern_data_ptr, M_CTL); 7825 printf("%s: reservation length changed, retrying\n", 7826 __func__); 7827 goto retry; 7828 } 7829 7830 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 7831 7832 res_desc = &res_status->desc[0]; 7833 for (i = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7834 if (lun->pr_keys[i] == 0) 7835 continue; 7836 7837 scsi_u64to8b(lun->pr_keys[i], res_desc->res_key.key); 7838 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7839 (lun->pr_res_idx == i || 7840 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7841 res_desc->flags = SPRI_FULL_R_HOLDER; 7842 res_desc->scopetype = lun->res_type; 7843 } 7844 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7845 res_desc->rel_trgt_port_id); 7846 len = 0; 7847 port = softc->ctl_ports[ 7848 ctl_port_idx(i / CTL_MAX_INIT_PER_PORT)]; 7849 if (port != NULL) 7850 len = ctl_create_iid(port, 7851 i % CTL_MAX_INIT_PER_PORT, 7852 res_desc->transport_id); 7853 scsi_ulto4b(len, res_desc->additional_length); 7854 res_desc = (struct scsi_per_res_in_full_desc *) 7855 &res_desc->transport_id[len]; 7856 } 7857 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7858 res_status->header.length); 7859 break; 7860 } 7861 default: 7862 /* 7863 * This is a bug, because we just checked for this above, 7864 * and should have returned an error. 7865 */ 7866 panic("Invalid PR type %x", cdb->action); 7867 break; /* NOTREACHED */ 7868 } 7869 mtx_unlock(&lun->lun_lock); 7870 7871 ctl_set_success(ctsio); 7872 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7873 ctsio->be_move_done = ctl_config_move_done; 7874 ctl_datamove((union ctl_io *)ctsio); 7875 return (CTL_RETVAL_COMPLETE); 7876} 7877 7878static void 7879ctl_set_res_ua(struct ctl_lun *lun, uint32_t residx, ctl_ua_type ua) 7880{ 7881 7882 if (residx >= persis_offset && 7883 residx < persis_offset + CTL_MAX_INITIATORS) 7884 lun->pending_ua[residx - persis_offset] |= ua; 7885} 7886 7887/* 7888 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7889 * it should return. 7890 */ 7891static int 7892ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7893 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7894 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7895 struct scsi_per_res_out_parms* param) 7896{ 7897 union ctl_ha_msg persis_io; 7898 int retval, i; 7899 int isc_retval; 7900 7901 retval = 0; 7902 7903 mtx_lock(&lun->lun_lock); 7904 if (sa_res_key == 0) { 7905 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7906 /* validate scope and type */ 7907 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7908 SPR_LU_SCOPE) { 7909 mtx_unlock(&lun->lun_lock); 7910 ctl_set_invalid_field(/*ctsio*/ ctsio, 7911 /*sks_valid*/ 1, 7912 /*command*/ 1, 7913 /*field*/ 2, 7914 /*bit_valid*/ 1, 7915 /*bit*/ 4); 7916 ctl_done((union ctl_io *)ctsio); 7917 return (1); 7918 } 7919 7920 if (type>8 || type==2 || type==4 || type==0) { 7921 mtx_unlock(&lun->lun_lock); 7922 ctl_set_invalid_field(/*ctsio*/ ctsio, 7923 /*sks_valid*/ 1, 7924 /*command*/ 1, 7925 /*field*/ 2, 7926 /*bit_valid*/ 1, 7927 /*bit*/ 0); 7928 ctl_done((union ctl_io *)ctsio); 7929 return (1); 7930 } 7931 7932 /* 7933 * Unregister everybody else and build UA for 7934 * them 7935 */ 7936 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 7937 if (i == residx || lun->pr_keys[i] == 0) 7938 continue; 7939 7940 lun->pr_keys[i] = 0; 7941 ctl_set_res_ua(lun, i, CTL_UA_REG_PREEMPT); 7942 } 7943 lun->pr_key_count = 1; 7944 lun->res_type = type; 7945 if (lun->res_type != SPR_TYPE_WR_EX_AR 7946 && lun->res_type != SPR_TYPE_EX_AC_AR) 7947 lun->pr_res_idx = residx; 7948 7949 /* send msg to other side */ 7950 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7951 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7952 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7953 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7954 persis_io.pr.pr_info.res_type = type; 7955 memcpy(persis_io.pr.pr_info.sa_res_key, 7956 param->serv_act_res_key, 7957 sizeof(param->serv_act_res_key)); 7958 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 7959 &persis_io, sizeof(persis_io), 0)) > 7960 CTL_HA_STATUS_SUCCESS) { 7961 printf("CTL:Persis Out error returned " 7962 "from ctl_ha_msg_send %d\n", 7963 isc_retval); 7964 } 7965 } else { 7966 /* not all registrants */ 7967 mtx_unlock(&lun->lun_lock); 7968 free(ctsio->kern_data_ptr, M_CTL); 7969 ctl_set_invalid_field(ctsio, 7970 /*sks_valid*/ 1, 7971 /*command*/ 0, 7972 /*field*/ 8, 7973 /*bit_valid*/ 0, 7974 /*bit*/ 0); 7975 ctl_done((union ctl_io *)ctsio); 7976 return (1); 7977 } 7978 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 7979 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 7980 int found = 0; 7981 7982 if (res_key == sa_res_key) { 7983 /* special case */ 7984 /* 7985 * The spec implies this is not good but doesn't 7986 * say what to do. There are two choices either 7987 * generate a res conflict or check condition 7988 * with illegal field in parameter data. Since 7989 * that is what is done when the sa_res_key is 7990 * zero I'll take that approach since this has 7991 * to do with the sa_res_key. 7992 */ 7993 mtx_unlock(&lun->lun_lock); 7994 free(ctsio->kern_data_ptr, M_CTL); 7995 ctl_set_invalid_field(ctsio, 7996 /*sks_valid*/ 1, 7997 /*command*/ 0, 7998 /*field*/ 8, 7999 /*bit_valid*/ 0, 8000 /*bit*/ 0); 8001 ctl_done((union ctl_io *)ctsio); 8002 return (1); 8003 } 8004 8005 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8006 if (lun->pr_keys[i] != sa_res_key) 8007 continue; 8008 8009 found = 1; 8010 lun->pr_keys[i] = 0; 8011 lun->pr_key_count--; 8012 ctl_set_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8013 } 8014 if (!found) { 8015 mtx_unlock(&lun->lun_lock); 8016 free(ctsio->kern_data_ptr, M_CTL); 8017 ctl_set_reservation_conflict(ctsio); 8018 ctl_done((union ctl_io *)ctsio); 8019 return (CTL_RETVAL_COMPLETE); 8020 } 8021 /* send msg to other side */ 8022 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8023 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8024 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8025 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8026 persis_io.pr.pr_info.res_type = type; 8027 memcpy(persis_io.pr.pr_info.sa_res_key, 8028 param->serv_act_res_key, 8029 sizeof(param->serv_act_res_key)); 8030 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8031 &persis_io, sizeof(persis_io), 0)) > 8032 CTL_HA_STATUS_SUCCESS) { 8033 printf("CTL:Persis Out error returned from " 8034 "ctl_ha_msg_send %d\n", isc_retval); 8035 } 8036 } else { 8037 /* Reserved but not all registrants */ 8038 /* sa_res_key is res holder */ 8039 if (sa_res_key == lun->pr_keys[lun->pr_res_idx]) { 8040 /* validate scope and type */ 8041 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8042 SPR_LU_SCOPE) { 8043 mtx_unlock(&lun->lun_lock); 8044 ctl_set_invalid_field(/*ctsio*/ ctsio, 8045 /*sks_valid*/ 1, 8046 /*command*/ 1, 8047 /*field*/ 2, 8048 /*bit_valid*/ 1, 8049 /*bit*/ 4); 8050 ctl_done((union ctl_io *)ctsio); 8051 return (1); 8052 } 8053 8054 if (type>8 || type==2 || type==4 || type==0) { 8055 mtx_unlock(&lun->lun_lock); 8056 ctl_set_invalid_field(/*ctsio*/ ctsio, 8057 /*sks_valid*/ 1, 8058 /*command*/ 1, 8059 /*field*/ 2, 8060 /*bit_valid*/ 1, 8061 /*bit*/ 0); 8062 ctl_done((union ctl_io *)ctsio); 8063 return (1); 8064 } 8065 8066 /* 8067 * Do the following: 8068 * if sa_res_key != res_key remove all 8069 * registrants w/sa_res_key and generate UA 8070 * for these registrants(Registrations 8071 * Preempted) if it wasn't an exclusive 8072 * reservation generate UA(Reservations 8073 * Preempted) for all other registered nexuses 8074 * if the type has changed. Establish the new 8075 * reservation and holder. If res_key and 8076 * sa_res_key are the same do the above 8077 * except don't unregister the res holder. 8078 */ 8079 8080 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8081 if (i == residx || lun->pr_keys[i] == 0) 8082 continue; 8083 8084 if (sa_res_key == lun->pr_keys[i]) { 8085 lun->pr_keys[i] = 0; 8086 lun->pr_key_count--; 8087 ctl_set_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8088 } else if (type != lun->res_type 8089 && (lun->res_type == SPR_TYPE_WR_EX_RO 8090 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 8091 ctl_set_res_ua(lun, i, CTL_UA_RES_RELEASE); 8092 } 8093 } 8094 lun->res_type = type; 8095 if (lun->res_type != SPR_TYPE_WR_EX_AR 8096 && lun->res_type != SPR_TYPE_EX_AC_AR) 8097 lun->pr_res_idx = residx; 8098 else 8099 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8100 8101 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8102 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8103 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8104 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8105 persis_io.pr.pr_info.res_type = type; 8106 memcpy(persis_io.pr.pr_info.sa_res_key, 8107 param->serv_act_res_key, 8108 sizeof(param->serv_act_res_key)); 8109 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8110 &persis_io, sizeof(persis_io), 0)) > 8111 CTL_HA_STATUS_SUCCESS) { 8112 printf("CTL:Persis Out error returned " 8113 "from ctl_ha_msg_send %d\n", 8114 isc_retval); 8115 } 8116 } else { 8117 /* 8118 * sa_res_key is not the res holder just 8119 * remove registrants 8120 */ 8121 int found=0; 8122 8123 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8124 if (sa_res_key != lun->pr_keys[i]) 8125 continue; 8126 8127 found = 1; 8128 lun->pr_keys[i] = 0; 8129 lun->pr_key_count--; 8130 ctl_set_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8131 } 8132 8133 if (!found) { 8134 mtx_unlock(&lun->lun_lock); 8135 free(ctsio->kern_data_ptr, M_CTL); 8136 ctl_set_reservation_conflict(ctsio); 8137 ctl_done((union ctl_io *)ctsio); 8138 return (1); 8139 } 8140 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8141 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8142 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8143 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8144 persis_io.pr.pr_info.res_type = type; 8145 memcpy(persis_io.pr.pr_info.sa_res_key, 8146 param->serv_act_res_key, 8147 sizeof(param->serv_act_res_key)); 8148 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8149 &persis_io, sizeof(persis_io), 0)) > 8150 CTL_HA_STATUS_SUCCESS) { 8151 printf("CTL:Persis Out error returned " 8152 "from ctl_ha_msg_send %d\n", 8153 isc_retval); 8154 } 8155 } 8156 } 8157 8158 lun->PRGeneration++; 8159 mtx_unlock(&lun->lun_lock); 8160 8161 return (retval); 8162} 8163 8164static void 8165ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8166{ 8167 uint64_t sa_res_key; 8168 int i; 8169 8170 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8171 8172 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8173 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8174 || sa_res_key != lun->pr_keys[lun->pr_res_idx]) { 8175 if (sa_res_key == 0) { 8176 /* 8177 * Unregister everybody else and build UA for 8178 * them 8179 */ 8180 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8181 if (i == msg->pr.pr_info.residx || 8182 lun->pr_keys[i] == 0) 8183 continue; 8184 8185 lun->pr_keys[i] = 0; 8186 ctl_set_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8187 } 8188 8189 lun->pr_key_count = 1; 8190 lun->res_type = msg->pr.pr_info.res_type; 8191 if (lun->res_type != SPR_TYPE_WR_EX_AR 8192 && lun->res_type != SPR_TYPE_EX_AC_AR) 8193 lun->pr_res_idx = msg->pr.pr_info.residx; 8194 } else { 8195 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8196 if (sa_res_key == lun->pr_keys[i]) 8197 continue; 8198 8199 lun->pr_keys[i] = 0; 8200 lun->pr_key_count--; 8201 ctl_set_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8202 } 8203 } 8204 } else { 8205 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8206 if (i == msg->pr.pr_info.residx || 8207 lun->pr_keys[i] == 0) 8208 continue; 8209 8210 if (sa_res_key == lun->pr_keys[i]) { 8211 lun->pr_keys[i] = 0; 8212 lun->pr_key_count--; 8213 ctl_set_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8214 } else if (msg->pr.pr_info.res_type != lun->res_type 8215 && (lun->res_type == SPR_TYPE_WR_EX_RO 8216 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8217 ctl_set_res_ua(lun, i, CTL_UA_RES_RELEASE); 8218 } 8219 } 8220 lun->res_type = msg->pr.pr_info.res_type; 8221 if (lun->res_type != SPR_TYPE_WR_EX_AR 8222 && lun->res_type != SPR_TYPE_EX_AC_AR) 8223 lun->pr_res_idx = msg->pr.pr_info.residx; 8224 else 8225 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8226 } 8227 lun->PRGeneration++; 8228 8229} 8230 8231 8232int 8233ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8234{ 8235 int retval; 8236 int isc_retval; 8237 u_int32_t param_len; 8238 struct scsi_per_res_out *cdb; 8239 struct ctl_lun *lun; 8240 struct scsi_per_res_out_parms* param; 8241 struct ctl_softc *softc; 8242 uint32_t residx; 8243 uint64_t res_key, sa_res_key; 8244 uint8_t type; 8245 union ctl_ha_msg persis_io; 8246 int i; 8247 8248 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8249 8250 retval = CTL_RETVAL_COMPLETE; 8251 8252 softc = control_softc; 8253 8254 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8255 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8256 8257 /* 8258 * We only support whole-LUN scope. The scope & type are ignored for 8259 * register, register and ignore existing key and clear. 8260 * We sometimes ignore scope and type on preempts too!! 8261 * Verify reservation type here as well. 8262 */ 8263 type = cdb->scope_type & SPR_TYPE_MASK; 8264 if ((cdb->action == SPRO_RESERVE) 8265 || (cdb->action == SPRO_RELEASE)) { 8266 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8267 ctl_set_invalid_field(/*ctsio*/ ctsio, 8268 /*sks_valid*/ 1, 8269 /*command*/ 1, 8270 /*field*/ 2, 8271 /*bit_valid*/ 1, 8272 /*bit*/ 4); 8273 ctl_done((union ctl_io *)ctsio); 8274 return (CTL_RETVAL_COMPLETE); 8275 } 8276 8277 if (type>8 || type==2 || type==4 || type==0) { 8278 ctl_set_invalid_field(/*ctsio*/ ctsio, 8279 /*sks_valid*/ 1, 8280 /*command*/ 1, 8281 /*field*/ 2, 8282 /*bit_valid*/ 1, 8283 /*bit*/ 0); 8284 ctl_done((union ctl_io *)ctsio); 8285 return (CTL_RETVAL_COMPLETE); 8286 } 8287 } 8288 8289 param_len = scsi_4btoul(cdb->length); 8290 8291 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8292 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8293 ctsio->kern_data_len = param_len; 8294 ctsio->kern_total_len = param_len; 8295 ctsio->kern_data_resid = 0; 8296 ctsio->kern_rel_offset = 0; 8297 ctsio->kern_sg_entries = 0; 8298 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8299 ctsio->be_move_done = ctl_config_move_done; 8300 ctl_datamove((union ctl_io *)ctsio); 8301 8302 return (CTL_RETVAL_COMPLETE); 8303 } 8304 8305 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8306 8307 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8308 res_key = scsi_8btou64(param->res_key.key); 8309 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8310 8311 /* 8312 * Validate the reservation key here except for SPRO_REG_IGNO 8313 * This must be done for all other service actions 8314 */ 8315 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8316 mtx_lock(&lun->lun_lock); 8317 if (lun->pr_keys[residx] != 0) { 8318 if (res_key != lun->pr_keys[residx]) { 8319 /* 8320 * The current key passed in doesn't match 8321 * the one the initiator previously 8322 * registered. 8323 */ 8324 mtx_unlock(&lun->lun_lock); 8325 free(ctsio->kern_data_ptr, M_CTL); 8326 ctl_set_reservation_conflict(ctsio); 8327 ctl_done((union ctl_io *)ctsio); 8328 return (CTL_RETVAL_COMPLETE); 8329 } 8330 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8331 /* 8332 * We are not registered 8333 */ 8334 mtx_unlock(&lun->lun_lock); 8335 free(ctsio->kern_data_ptr, M_CTL); 8336 ctl_set_reservation_conflict(ctsio); 8337 ctl_done((union ctl_io *)ctsio); 8338 return (CTL_RETVAL_COMPLETE); 8339 } else if (res_key != 0) { 8340 /* 8341 * We are not registered and trying to register but 8342 * the register key isn't zero. 8343 */ 8344 mtx_unlock(&lun->lun_lock); 8345 free(ctsio->kern_data_ptr, M_CTL); 8346 ctl_set_reservation_conflict(ctsio); 8347 ctl_done((union ctl_io *)ctsio); 8348 return (CTL_RETVAL_COMPLETE); 8349 } 8350 mtx_unlock(&lun->lun_lock); 8351 } 8352 8353 switch (cdb->action & SPRO_ACTION_MASK) { 8354 case SPRO_REGISTER: 8355 case SPRO_REG_IGNO: { 8356 8357#if 0 8358 printf("Registration received\n"); 8359#endif 8360 8361 /* 8362 * We don't support any of these options, as we report in 8363 * the read capabilities request (see 8364 * ctl_persistent_reserve_in(), above). 8365 */ 8366 if ((param->flags & SPR_SPEC_I_PT) 8367 || (param->flags & SPR_ALL_TG_PT) 8368 || (param->flags & SPR_APTPL)) { 8369 int bit_ptr; 8370 8371 if (param->flags & SPR_APTPL) 8372 bit_ptr = 0; 8373 else if (param->flags & SPR_ALL_TG_PT) 8374 bit_ptr = 2; 8375 else /* SPR_SPEC_I_PT */ 8376 bit_ptr = 3; 8377 8378 free(ctsio->kern_data_ptr, M_CTL); 8379 ctl_set_invalid_field(ctsio, 8380 /*sks_valid*/ 1, 8381 /*command*/ 0, 8382 /*field*/ 20, 8383 /*bit_valid*/ 1, 8384 /*bit*/ bit_ptr); 8385 ctl_done((union ctl_io *)ctsio); 8386 return (CTL_RETVAL_COMPLETE); 8387 } 8388 8389 mtx_lock(&lun->lun_lock); 8390 8391 /* 8392 * The initiator wants to clear the 8393 * key/unregister. 8394 */ 8395 if (sa_res_key == 0) { 8396 if ((res_key == 0 8397 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8398 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8399 && lun->pr_keys[residx] == 0)) { 8400 mtx_unlock(&lun->lun_lock); 8401 goto done; 8402 } 8403 8404 lun->pr_keys[residx] = 0; 8405 lun->pr_key_count--; 8406 8407 if (residx == lun->pr_res_idx) { 8408 lun->flags &= ~CTL_LUN_PR_RESERVED; 8409 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8410 8411 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8412 || lun->res_type == SPR_TYPE_EX_AC_RO) 8413 && lun->pr_key_count) { 8414 /* 8415 * If the reservation is a registrants 8416 * only type we need to generate a UA 8417 * for other registered inits. The 8418 * sense code should be RESERVATIONS 8419 * RELEASED 8420 */ 8421 8422 for (i = 0; i < CTL_MAX_INITIATORS;i++){ 8423 if (lun->pr_keys[ 8424 i + persis_offset] == 0) 8425 continue; 8426 lun->pending_ua[i] |= 8427 CTL_UA_RES_RELEASE; 8428 } 8429 } 8430 lun->res_type = 0; 8431 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8432 if (lun->pr_key_count==0) { 8433 lun->flags &= ~CTL_LUN_PR_RESERVED; 8434 lun->res_type = 0; 8435 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8436 } 8437 } 8438 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8439 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8440 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8441 persis_io.pr.pr_info.residx = residx; 8442 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8443 &persis_io, sizeof(persis_io), 0 )) > 8444 CTL_HA_STATUS_SUCCESS) { 8445 printf("CTL:Persis Out error returned from " 8446 "ctl_ha_msg_send %d\n", isc_retval); 8447 } 8448 } else /* sa_res_key != 0 */ { 8449 8450 /* 8451 * If we aren't registered currently then increment 8452 * the key count and set the registered flag. 8453 */ 8454 if (lun->pr_keys[residx] == 0) 8455 lun->pr_key_count++; 8456 lun->pr_keys[residx] = sa_res_key; 8457 8458 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8459 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8460 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8461 persis_io.pr.pr_info.residx = residx; 8462 memcpy(persis_io.pr.pr_info.sa_res_key, 8463 param->serv_act_res_key, 8464 sizeof(param->serv_act_res_key)); 8465 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8466 &persis_io, sizeof(persis_io), 0)) > 8467 CTL_HA_STATUS_SUCCESS) { 8468 printf("CTL:Persis Out error returned from " 8469 "ctl_ha_msg_send %d\n", isc_retval); 8470 } 8471 } 8472 lun->PRGeneration++; 8473 mtx_unlock(&lun->lun_lock); 8474 8475 break; 8476 } 8477 case SPRO_RESERVE: 8478#if 0 8479 printf("Reserve executed type %d\n", type); 8480#endif 8481 mtx_lock(&lun->lun_lock); 8482 if (lun->flags & CTL_LUN_PR_RESERVED) { 8483 /* 8484 * if this isn't the reservation holder and it's 8485 * not a "all registrants" type or if the type is 8486 * different then we have a conflict 8487 */ 8488 if ((lun->pr_res_idx != residx 8489 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8490 || lun->res_type != type) { 8491 mtx_unlock(&lun->lun_lock); 8492 free(ctsio->kern_data_ptr, M_CTL); 8493 ctl_set_reservation_conflict(ctsio); 8494 ctl_done((union ctl_io *)ctsio); 8495 return (CTL_RETVAL_COMPLETE); 8496 } 8497 mtx_unlock(&lun->lun_lock); 8498 } else /* create a reservation */ { 8499 /* 8500 * If it's not an "all registrants" type record 8501 * reservation holder 8502 */ 8503 if (type != SPR_TYPE_WR_EX_AR 8504 && type != SPR_TYPE_EX_AC_AR) 8505 lun->pr_res_idx = residx; /* Res holder */ 8506 else 8507 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8508 8509 lun->flags |= CTL_LUN_PR_RESERVED; 8510 lun->res_type = type; 8511 8512 mtx_unlock(&lun->lun_lock); 8513 8514 /* send msg to other side */ 8515 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8516 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8517 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8518 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8519 persis_io.pr.pr_info.res_type = type; 8520 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8521 &persis_io, sizeof(persis_io), 0)) > 8522 CTL_HA_STATUS_SUCCESS) { 8523 printf("CTL:Persis Out error returned from " 8524 "ctl_ha_msg_send %d\n", isc_retval); 8525 } 8526 } 8527 break; 8528 8529 case SPRO_RELEASE: 8530 mtx_lock(&lun->lun_lock); 8531 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8532 /* No reservation exists return good status */ 8533 mtx_unlock(&lun->lun_lock); 8534 goto done; 8535 } 8536 /* 8537 * Is this nexus a reservation holder? 8538 */ 8539 if (lun->pr_res_idx != residx 8540 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8541 /* 8542 * not a res holder return good status but 8543 * do nothing 8544 */ 8545 mtx_unlock(&lun->lun_lock); 8546 goto done; 8547 } 8548 8549 if (lun->res_type != type) { 8550 mtx_unlock(&lun->lun_lock); 8551 free(ctsio->kern_data_ptr, M_CTL); 8552 ctl_set_illegal_pr_release(ctsio); 8553 ctl_done((union ctl_io *)ctsio); 8554 return (CTL_RETVAL_COMPLETE); 8555 } 8556 8557 /* okay to release */ 8558 lun->flags &= ~CTL_LUN_PR_RESERVED; 8559 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8560 lun->res_type = 0; 8561 8562 /* 8563 * if this isn't an exclusive access 8564 * res generate UA for all other 8565 * registrants. 8566 */ 8567 if (type != SPR_TYPE_EX_AC 8568 && type != SPR_TYPE_WR_EX) { 8569 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8570 if (i == residx || 8571 lun->pr_keys[i + persis_offset] == 0) 8572 continue; 8573 lun->pending_ua[i] |= CTL_UA_RES_RELEASE; 8574 } 8575 } 8576 mtx_unlock(&lun->lun_lock); 8577 /* Send msg to other side */ 8578 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8579 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8580 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8581 if ((isc_retval=ctl_ha_msg_send( CTL_HA_CHAN_CTL, &persis_io, 8582 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8583 printf("CTL:Persis Out error returned from " 8584 "ctl_ha_msg_send %d\n", isc_retval); 8585 } 8586 break; 8587 8588 case SPRO_CLEAR: 8589 /* send msg to other side */ 8590 8591 mtx_lock(&lun->lun_lock); 8592 lun->flags &= ~CTL_LUN_PR_RESERVED; 8593 lun->res_type = 0; 8594 lun->pr_key_count = 0; 8595 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8596 8597 lun->pr_keys[residx] = 0; 8598 8599 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) 8600 if (lun->pr_keys[i] != 0) { 8601 lun->pr_keys[i] = 0; 8602 ctl_set_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8603 } 8604 lun->PRGeneration++; 8605 mtx_unlock(&lun->lun_lock); 8606 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8607 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8608 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8609 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8610 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8611 printf("CTL:Persis Out error returned from " 8612 "ctl_ha_msg_send %d\n", isc_retval); 8613 } 8614 break; 8615 8616 case SPRO_PREEMPT: 8617 case SPRO_PRE_ABO: { 8618 int nretval; 8619 8620 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8621 residx, ctsio, cdb, param); 8622 if (nretval != 0) 8623 return (CTL_RETVAL_COMPLETE); 8624 break; 8625 } 8626 default: 8627 panic("Invalid PR type %x", cdb->action); 8628 } 8629 8630done: 8631 free(ctsio->kern_data_ptr, M_CTL); 8632 ctl_set_success(ctsio); 8633 ctl_done((union ctl_io *)ctsio); 8634 8635 return (retval); 8636} 8637 8638/* 8639 * This routine is for handling a message from the other SC pertaining to 8640 * persistent reserve out. All the error checking will have been done 8641 * so only perorming the action need be done here to keep the two 8642 * in sync. 8643 */ 8644static void 8645ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8646{ 8647 struct ctl_lun *lun; 8648 struct ctl_softc *softc; 8649 int i; 8650 uint32_t targ_lun; 8651 8652 softc = control_softc; 8653 8654 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8655 lun = softc->ctl_luns[targ_lun]; 8656 mtx_lock(&lun->lun_lock); 8657 switch(msg->pr.pr_info.action) { 8658 case CTL_PR_REG_KEY: 8659 if (lun->pr_keys[msg->pr.pr_info.residx] == 0) 8660 lun->pr_key_count++; 8661 lun->pr_keys[msg->pr.pr_info.residx] = 8662 scsi_8btou64(msg->pr.pr_info.sa_res_key); 8663 lun->PRGeneration++; 8664 break; 8665 8666 case CTL_PR_UNREG_KEY: 8667 lun->pr_keys[msg->pr.pr_info.residx] = 0; 8668 lun->pr_key_count--; 8669 8670 /* XXX Need to see if the reservation has been released */ 8671 /* if so do we need to generate UA? */ 8672 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8673 lun->flags &= ~CTL_LUN_PR_RESERVED; 8674 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8675 8676 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8677 || lun->res_type == SPR_TYPE_EX_AC_RO) 8678 && lun->pr_key_count) { 8679 /* 8680 * If the reservation is a registrants 8681 * only type we need to generate a UA 8682 * for other registered inits. The 8683 * sense code should be RESERVATIONS 8684 * RELEASED 8685 */ 8686 8687 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8688 if (lun->pr_keys[i+ 8689 persis_offset] == 0) 8690 continue; 8691 8692 lun->pending_ua[i] |= 8693 CTL_UA_RES_RELEASE; 8694 } 8695 } 8696 lun->res_type = 0; 8697 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8698 if (lun->pr_key_count==0) { 8699 lun->flags &= ~CTL_LUN_PR_RESERVED; 8700 lun->res_type = 0; 8701 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8702 } 8703 } 8704 lun->PRGeneration++; 8705 break; 8706 8707 case CTL_PR_RESERVE: 8708 lun->flags |= CTL_LUN_PR_RESERVED; 8709 lun->res_type = msg->pr.pr_info.res_type; 8710 lun->pr_res_idx = msg->pr.pr_info.residx; 8711 8712 break; 8713 8714 case CTL_PR_RELEASE: 8715 /* 8716 * if this isn't an exclusive access res generate UA for all 8717 * other registrants. 8718 */ 8719 if (lun->res_type != SPR_TYPE_EX_AC 8720 && lun->res_type != SPR_TYPE_WR_EX) { 8721 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8722 if (lun->pr_keys[i+persis_offset] != 0) 8723 lun->pending_ua[i] |= 8724 CTL_UA_RES_RELEASE; 8725 } 8726 8727 lun->flags &= ~CTL_LUN_PR_RESERVED; 8728 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8729 lun->res_type = 0; 8730 break; 8731 8732 case CTL_PR_PREEMPT: 8733 ctl_pro_preempt_other(lun, msg); 8734 break; 8735 case CTL_PR_CLEAR: 8736 lun->flags &= ~CTL_LUN_PR_RESERVED; 8737 lun->res_type = 0; 8738 lun->pr_key_count = 0; 8739 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8740 8741 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8742 if (lun->pr_keys[i] == 0) 8743 continue; 8744 lun->pr_keys[i] = 0; 8745 ctl_set_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8746 } 8747 lun->PRGeneration++; 8748 break; 8749 } 8750 8751 mtx_unlock(&lun->lun_lock); 8752} 8753 8754int 8755ctl_read_write(struct ctl_scsiio *ctsio) 8756{ 8757 struct ctl_lun *lun; 8758 struct ctl_lba_len_flags *lbalen; 8759 uint64_t lba; 8760 uint32_t num_blocks; 8761 int flags, retval; 8762 int isread; 8763 8764 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8765 8766 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8767 8768 flags = 0; 8769 retval = CTL_RETVAL_COMPLETE; 8770 8771 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8772 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8773 switch (ctsio->cdb[0]) { 8774 case READ_6: 8775 case WRITE_6: { 8776 struct scsi_rw_6 *cdb; 8777 8778 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8779 8780 lba = scsi_3btoul(cdb->addr); 8781 /* only 5 bits are valid in the most significant address byte */ 8782 lba &= 0x1fffff; 8783 num_blocks = cdb->length; 8784 /* 8785 * This is correct according to SBC-2. 8786 */ 8787 if (num_blocks == 0) 8788 num_blocks = 256; 8789 break; 8790 } 8791 case READ_10: 8792 case WRITE_10: { 8793 struct scsi_rw_10 *cdb; 8794 8795 cdb = (struct scsi_rw_10 *)ctsio->cdb; 8796 if (cdb->byte2 & SRW10_FUA) 8797 flags |= CTL_LLF_FUA; 8798 if (cdb->byte2 & SRW10_DPO) 8799 flags |= CTL_LLF_DPO; 8800 lba = scsi_4btoul(cdb->addr); 8801 num_blocks = scsi_2btoul(cdb->length); 8802 break; 8803 } 8804 case WRITE_VERIFY_10: { 8805 struct scsi_write_verify_10 *cdb; 8806 8807 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 8808 flags |= CTL_LLF_FUA; 8809 if (cdb->byte2 & SWV_DPO) 8810 flags |= CTL_LLF_DPO; 8811 lba = scsi_4btoul(cdb->addr); 8812 num_blocks = scsi_2btoul(cdb->length); 8813 break; 8814 } 8815 case READ_12: 8816 case WRITE_12: { 8817 struct scsi_rw_12 *cdb; 8818 8819 cdb = (struct scsi_rw_12 *)ctsio->cdb; 8820 if (cdb->byte2 & SRW12_FUA) 8821 flags |= CTL_LLF_FUA; 8822 if (cdb->byte2 & SRW12_DPO) 8823 flags |= CTL_LLF_DPO; 8824 lba = scsi_4btoul(cdb->addr); 8825 num_blocks = scsi_4btoul(cdb->length); 8826 break; 8827 } 8828 case WRITE_VERIFY_12: { 8829 struct scsi_write_verify_12 *cdb; 8830 8831 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 8832 flags |= CTL_LLF_FUA; 8833 if (cdb->byte2 & SWV_DPO) 8834 flags |= CTL_LLF_DPO; 8835 lba = scsi_4btoul(cdb->addr); 8836 num_blocks = scsi_4btoul(cdb->length); 8837 break; 8838 } 8839 case READ_16: 8840 case WRITE_16: { 8841 struct scsi_rw_16 *cdb; 8842 8843 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8844 if (cdb->byte2 & SRW12_FUA) 8845 flags |= CTL_LLF_FUA; 8846 if (cdb->byte2 & SRW12_DPO) 8847 flags |= CTL_LLF_DPO; 8848 lba = scsi_8btou64(cdb->addr); 8849 num_blocks = scsi_4btoul(cdb->length); 8850 break; 8851 } 8852 case WRITE_ATOMIC_16: { 8853 struct scsi_rw_16 *cdb; 8854 8855 if (lun->be_lun->atomicblock == 0) { 8856 ctl_set_invalid_opcode(ctsio); 8857 ctl_done((union ctl_io *)ctsio); 8858 return (CTL_RETVAL_COMPLETE); 8859 } 8860 8861 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8862 if (cdb->byte2 & SRW12_FUA) 8863 flags |= CTL_LLF_FUA; 8864 if (cdb->byte2 & SRW12_DPO) 8865 flags |= CTL_LLF_DPO; 8866 lba = scsi_8btou64(cdb->addr); 8867 num_blocks = scsi_4btoul(cdb->length); 8868 if (num_blocks > lun->be_lun->atomicblock) { 8869 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 8870 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 8871 /*bit*/ 0); 8872 ctl_done((union ctl_io *)ctsio); 8873 return (CTL_RETVAL_COMPLETE); 8874 } 8875 break; 8876 } 8877 case WRITE_VERIFY_16: { 8878 struct scsi_write_verify_16 *cdb; 8879 8880 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 8881 flags |= CTL_LLF_FUA; 8882 if (cdb->byte2 & SWV_DPO) 8883 flags |= CTL_LLF_DPO; 8884 lba = scsi_8btou64(cdb->addr); 8885 num_blocks = scsi_4btoul(cdb->length); 8886 break; 8887 } 8888 default: 8889 /* 8890 * We got a command we don't support. This shouldn't 8891 * happen, commands should be filtered out above us. 8892 */ 8893 ctl_set_invalid_opcode(ctsio); 8894 ctl_done((union ctl_io *)ctsio); 8895 8896 return (CTL_RETVAL_COMPLETE); 8897 break; /* NOTREACHED */ 8898 } 8899 8900 /* 8901 * The first check is to make sure we're in bounds, the second 8902 * check is to catch wrap-around problems. If the lba + num blocks 8903 * is less than the lba, then we've wrapped around and the block 8904 * range is invalid anyway. 8905 */ 8906 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8907 || ((lba + num_blocks) < lba)) { 8908 ctl_set_lba_out_of_range(ctsio); 8909 ctl_done((union ctl_io *)ctsio); 8910 return (CTL_RETVAL_COMPLETE); 8911 } 8912 8913 /* 8914 * According to SBC-3, a transfer length of 0 is not an error. 8915 * Note that this cannot happen with WRITE(6) or READ(6), since 0 8916 * translates to 256 blocks for those commands. 8917 */ 8918 if (num_blocks == 0) { 8919 ctl_set_success(ctsio); 8920 ctl_done((union ctl_io *)ctsio); 8921 return (CTL_RETVAL_COMPLETE); 8922 } 8923 8924 /* Set FUA and/or DPO if caches are disabled. */ 8925 if (isread) { 8926 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 8927 SCP_RCD) != 0) 8928 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 8929 } else { 8930 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 8931 SCP_WCE) == 0) 8932 flags |= CTL_LLF_FUA; 8933 } 8934 8935 lbalen = (struct ctl_lba_len_flags *) 8936 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8937 lbalen->lba = lba; 8938 lbalen->len = num_blocks; 8939 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 8940 8941 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 8942 ctsio->kern_rel_offset = 0; 8943 8944 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 8945 8946 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8947 8948 return (retval); 8949} 8950 8951static int 8952ctl_cnw_cont(union ctl_io *io) 8953{ 8954 struct ctl_scsiio *ctsio; 8955 struct ctl_lun *lun; 8956 struct ctl_lba_len_flags *lbalen; 8957 int retval; 8958 8959 ctsio = &io->scsiio; 8960 ctsio->io_hdr.status = CTL_STATUS_NONE; 8961 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 8962 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8963 lbalen = (struct ctl_lba_len_flags *) 8964 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8965 lbalen->flags &= ~CTL_LLF_COMPARE; 8966 lbalen->flags |= CTL_LLF_WRITE; 8967 8968 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 8969 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8970 return (retval); 8971} 8972 8973int 8974ctl_cnw(struct ctl_scsiio *ctsio) 8975{ 8976 struct ctl_lun *lun; 8977 struct ctl_lba_len_flags *lbalen; 8978 uint64_t lba; 8979 uint32_t num_blocks; 8980 int flags, retval; 8981 8982 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8983 8984 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 8985 8986 flags = 0; 8987 retval = CTL_RETVAL_COMPLETE; 8988 8989 switch (ctsio->cdb[0]) { 8990 case COMPARE_AND_WRITE: { 8991 struct scsi_compare_and_write *cdb; 8992 8993 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 8994 if (cdb->byte2 & SRW10_FUA) 8995 flags |= CTL_LLF_FUA; 8996 if (cdb->byte2 & SRW10_DPO) 8997 flags |= CTL_LLF_DPO; 8998 lba = scsi_8btou64(cdb->addr); 8999 num_blocks = cdb->length; 9000 break; 9001 } 9002 default: 9003 /* 9004 * We got a command we don't support. This shouldn't 9005 * happen, commands should be filtered out above us. 9006 */ 9007 ctl_set_invalid_opcode(ctsio); 9008 ctl_done((union ctl_io *)ctsio); 9009 9010 return (CTL_RETVAL_COMPLETE); 9011 break; /* NOTREACHED */ 9012 } 9013 9014 /* 9015 * The first check is to make sure we're in bounds, the second 9016 * check is to catch wrap-around problems. If the lba + num blocks 9017 * is less than the lba, then we've wrapped around and the block 9018 * range is invalid anyway. 9019 */ 9020 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9021 || ((lba + num_blocks) < lba)) { 9022 ctl_set_lba_out_of_range(ctsio); 9023 ctl_done((union ctl_io *)ctsio); 9024 return (CTL_RETVAL_COMPLETE); 9025 } 9026 9027 /* 9028 * According to SBC-3, a transfer length of 0 is not an error. 9029 */ 9030 if (num_blocks == 0) { 9031 ctl_set_success(ctsio); 9032 ctl_done((union ctl_io *)ctsio); 9033 return (CTL_RETVAL_COMPLETE); 9034 } 9035 9036 /* Set FUA if write cache is disabled. */ 9037 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9038 SCP_WCE) == 0) 9039 flags |= CTL_LLF_FUA; 9040 9041 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 9042 ctsio->kern_rel_offset = 0; 9043 9044 /* 9045 * Set the IO_CONT flag, so that if this I/O gets passed to 9046 * ctl_data_submit_done(), it'll get passed back to 9047 * ctl_ctl_cnw_cont() for further processing. 9048 */ 9049 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 9050 ctsio->io_cont = ctl_cnw_cont; 9051 9052 lbalen = (struct ctl_lba_len_flags *) 9053 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9054 lbalen->lba = lba; 9055 lbalen->len = num_blocks; 9056 lbalen->flags = CTL_LLF_COMPARE | flags; 9057 9058 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 9059 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9060 return (retval); 9061} 9062 9063int 9064ctl_verify(struct ctl_scsiio *ctsio) 9065{ 9066 struct ctl_lun *lun; 9067 struct ctl_lba_len_flags *lbalen; 9068 uint64_t lba; 9069 uint32_t num_blocks; 9070 int bytchk, flags; 9071 int retval; 9072 9073 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9074 9075 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 9076 9077 bytchk = 0; 9078 flags = CTL_LLF_FUA; 9079 retval = CTL_RETVAL_COMPLETE; 9080 9081 switch (ctsio->cdb[0]) { 9082 case VERIFY_10: { 9083 struct scsi_verify_10 *cdb; 9084 9085 cdb = (struct scsi_verify_10 *)ctsio->cdb; 9086 if (cdb->byte2 & SVFY_BYTCHK) 9087 bytchk = 1; 9088 if (cdb->byte2 & SVFY_DPO) 9089 flags |= CTL_LLF_DPO; 9090 lba = scsi_4btoul(cdb->addr); 9091 num_blocks = scsi_2btoul(cdb->length); 9092 break; 9093 } 9094 case VERIFY_12: { 9095 struct scsi_verify_12 *cdb; 9096 9097 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9098 if (cdb->byte2 & SVFY_BYTCHK) 9099 bytchk = 1; 9100 if (cdb->byte2 & SVFY_DPO) 9101 flags |= CTL_LLF_DPO; 9102 lba = scsi_4btoul(cdb->addr); 9103 num_blocks = scsi_4btoul(cdb->length); 9104 break; 9105 } 9106 case VERIFY_16: { 9107 struct scsi_rw_16 *cdb; 9108 9109 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9110 if (cdb->byte2 & SVFY_BYTCHK) 9111 bytchk = 1; 9112 if (cdb->byte2 & SVFY_DPO) 9113 flags |= CTL_LLF_DPO; 9114 lba = scsi_8btou64(cdb->addr); 9115 num_blocks = scsi_4btoul(cdb->length); 9116 break; 9117 } 9118 default: 9119 /* 9120 * We got a command we don't support. This shouldn't 9121 * happen, commands should be filtered out above us. 9122 */ 9123 ctl_set_invalid_opcode(ctsio); 9124 ctl_done((union ctl_io *)ctsio); 9125 return (CTL_RETVAL_COMPLETE); 9126 } 9127 9128 /* 9129 * The first check is to make sure we're in bounds, the second 9130 * check is to catch wrap-around problems. If the lba + num blocks 9131 * is less than the lba, then we've wrapped around and the block 9132 * range is invalid anyway. 9133 */ 9134 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9135 || ((lba + num_blocks) < lba)) { 9136 ctl_set_lba_out_of_range(ctsio); 9137 ctl_done((union ctl_io *)ctsio); 9138 return (CTL_RETVAL_COMPLETE); 9139 } 9140 9141 /* 9142 * According to SBC-3, a transfer length of 0 is not an error. 9143 */ 9144 if (num_blocks == 0) { 9145 ctl_set_success(ctsio); 9146 ctl_done((union ctl_io *)ctsio); 9147 return (CTL_RETVAL_COMPLETE); 9148 } 9149 9150 lbalen = (struct ctl_lba_len_flags *) 9151 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9152 lbalen->lba = lba; 9153 lbalen->len = num_blocks; 9154 if (bytchk) { 9155 lbalen->flags = CTL_LLF_COMPARE | flags; 9156 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9157 } else { 9158 lbalen->flags = CTL_LLF_VERIFY | flags; 9159 ctsio->kern_total_len = 0; 9160 } 9161 ctsio->kern_rel_offset = 0; 9162 9163 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9164 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9165 return (retval); 9166} 9167 9168int 9169ctl_report_luns(struct ctl_scsiio *ctsio) 9170{ 9171 struct scsi_report_luns *cdb; 9172 struct scsi_report_luns_data *lun_data; 9173 struct ctl_lun *lun, *request_lun; 9174 int num_luns, retval; 9175 uint32_t alloc_len, lun_datalen; 9176 int num_filled, well_known; 9177 uint32_t initidx, targ_lun_id, lun_id; 9178 9179 retval = CTL_RETVAL_COMPLETE; 9180 well_known = 0; 9181 9182 cdb = (struct scsi_report_luns *)ctsio->cdb; 9183 9184 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9185 9186 mtx_lock(&control_softc->ctl_lock); 9187 num_luns = control_softc->num_luns; 9188 mtx_unlock(&control_softc->ctl_lock); 9189 9190 switch (cdb->select_report) { 9191 case RPL_REPORT_DEFAULT: 9192 case RPL_REPORT_ALL: 9193 break; 9194 case RPL_REPORT_WELLKNOWN: 9195 well_known = 1; 9196 num_luns = 0; 9197 break; 9198 default: 9199 ctl_set_invalid_field(ctsio, 9200 /*sks_valid*/ 1, 9201 /*command*/ 1, 9202 /*field*/ 2, 9203 /*bit_valid*/ 0, 9204 /*bit*/ 0); 9205 ctl_done((union ctl_io *)ctsio); 9206 return (retval); 9207 break; /* NOTREACHED */ 9208 } 9209 9210 alloc_len = scsi_4btoul(cdb->length); 9211 /* 9212 * The initiator has to allocate at least 16 bytes for this request, 9213 * so he can at least get the header and the first LUN. Otherwise 9214 * we reject the request (per SPC-3 rev 14, section 6.21). 9215 */ 9216 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9217 sizeof(struct scsi_report_luns_lundata))) { 9218 ctl_set_invalid_field(ctsio, 9219 /*sks_valid*/ 1, 9220 /*command*/ 1, 9221 /*field*/ 6, 9222 /*bit_valid*/ 0, 9223 /*bit*/ 0); 9224 ctl_done((union ctl_io *)ctsio); 9225 return (retval); 9226 } 9227 9228 request_lun = (struct ctl_lun *) 9229 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9230 9231 lun_datalen = sizeof(*lun_data) + 9232 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9233 9234 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9235 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9236 ctsio->kern_sg_entries = 0; 9237 9238 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9239 9240 mtx_lock(&control_softc->ctl_lock); 9241 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9242 lun_id = ctl_map_lun(ctsio->io_hdr.nexus.targ_port, targ_lun_id); 9243 if (lun_id >= CTL_MAX_LUNS) 9244 continue; 9245 lun = control_softc->ctl_luns[lun_id]; 9246 if (lun == NULL) 9247 continue; 9248 9249 if (targ_lun_id <= 0xff) { 9250 /* 9251 * Peripheral addressing method, bus number 0. 9252 */ 9253 lun_data->luns[num_filled].lundata[0] = 9254 RPL_LUNDATA_ATYP_PERIPH; 9255 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9256 num_filled++; 9257 } else if (targ_lun_id <= 0x3fff) { 9258 /* 9259 * Flat addressing method. 9260 */ 9261 lun_data->luns[num_filled].lundata[0] = 9262 RPL_LUNDATA_ATYP_FLAT | (targ_lun_id >> 8); 9263 lun_data->luns[num_filled].lundata[1] = 9264 (targ_lun_id & 0xff); 9265 num_filled++; 9266 } else if (targ_lun_id <= 0xffffff) { 9267 /* 9268 * Extended flat addressing method. 9269 */ 9270 lun_data->luns[num_filled].lundata[0] = 9271 RPL_LUNDATA_ATYP_EXTLUN | 0x12; 9272 scsi_ulto3b(targ_lun_id, 9273 &lun_data->luns[num_filled].lundata[1]); 9274 num_filled++; 9275 } else { 9276 printf("ctl_report_luns: bogus LUN number %jd, " 9277 "skipping\n", (intmax_t)targ_lun_id); 9278 } 9279 /* 9280 * According to SPC-3, rev 14 section 6.21: 9281 * 9282 * "The execution of a REPORT LUNS command to any valid and 9283 * installed logical unit shall clear the REPORTED LUNS DATA 9284 * HAS CHANGED unit attention condition for all logical 9285 * units of that target with respect to the requesting 9286 * initiator. A valid and installed logical unit is one 9287 * having a PERIPHERAL QUALIFIER of 000b in the standard 9288 * INQUIRY data (see 6.4.2)." 9289 * 9290 * If request_lun is NULL, the LUN this report luns command 9291 * was issued to is either disabled or doesn't exist. In that 9292 * case, we shouldn't clear any pending lun change unit 9293 * attention. 9294 */ 9295 if (request_lun != NULL) { 9296 mtx_lock(&lun->lun_lock); 9297 lun->pending_ua[initidx] &= ~CTL_UA_LUN_CHANGE; 9298 mtx_unlock(&lun->lun_lock); 9299 } 9300 } 9301 mtx_unlock(&control_softc->ctl_lock); 9302 9303 /* 9304 * It's quite possible that we've returned fewer LUNs than we allocated 9305 * space for. Trim it. 9306 */ 9307 lun_datalen = sizeof(*lun_data) + 9308 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9309 9310 if (lun_datalen < alloc_len) { 9311 ctsio->residual = alloc_len - lun_datalen; 9312 ctsio->kern_data_len = lun_datalen; 9313 ctsio->kern_total_len = lun_datalen; 9314 } else { 9315 ctsio->residual = 0; 9316 ctsio->kern_data_len = alloc_len; 9317 ctsio->kern_total_len = alloc_len; 9318 } 9319 ctsio->kern_data_resid = 0; 9320 ctsio->kern_rel_offset = 0; 9321 ctsio->kern_sg_entries = 0; 9322 9323 /* 9324 * We set this to the actual data length, regardless of how much 9325 * space we actually have to return results. If the user looks at 9326 * this value, he'll know whether or not he allocated enough space 9327 * and reissue the command if necessary. We don't support well 9328 * known logical units, so if the user asks for that, return none. 9329 */ 9330 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9331 9332 /* 9333 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9334 * this request. 9335 */ 9336 ctl_set_success(ctsio); 9337 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9338 ctsio->be_move_done = ctl_config_move_done; 9339 ctl_datamove((union ctl_io *)ctsio); 9340 return (retval); 9341} 9342 9343int 9344ctl_request_sense(struct ctl_scsiio *ctsio) 9345{ 9346 struct scsi_request_sense *cdb; 9347 struct scsi_sense_data *sense_ptr; 9348 struct ctl_lun *lun; 9349 uint32_t initidx; 9350 int have_error; 9351 scsi_sense_data_type sense_format; 9352 9353 cdb = (struct scsi_request_sense *)ctsio->cdb; 9354 9355 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9356 9357 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9358 9359 /* 9360 * Determine which sense format the user wants. 9361 */ 9362 if (cdb->byte2 & SRS_DESC) 9363 sense_format = SSD_TYPE_DESC; 9364 else 9365 sense_format = SSD_TYPE_FIXED; 9366 9367 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9368 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9369 ctsio->kern_sg_entries = 0; 9370 9371 /* 9372 * struct scsi_sense_data, which is currently set to 256 bytes, is 9373 * larger than the largest allowed value for the length field in the 9374 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9375 */ 9376 ctsio->residual = 0; 9377 ctsio->kern_data_len = cdb->length; 9378 ctsio->kern_total_len = cdb->length; 9379 9380 ctsio->kern_data_resid = 0; 9381 ctsio->kern_rel_offset = 0; 9382 ctsio->kern_sg_entries = 0; 9383 9384 /* 9385 * If we don't have a LUN, we don't have any pending sense. 9386 */ 9387 if (lun == NULL) 9388 goto no_sense; 9389 9390 have_error = 0; 9391 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9392 /* 9393 * Check for pending sense, and then for pending unit attentions. 9394 * Pending sense gets returned first, then pending unit attentions. 9395 */ 9396 mtx_lock(&lun->lun_lock); 9397#ifdef CTL_WITH_CA 9398 if (ctl_is_set(lun->have_ca, initidx)) { 9399 scsi_sense_data_type stored_format; 9400 9401 /* 9402 * Check to see which sense format was used for the stored 9403 * sense data. 9404 */ 9405 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9406 9407 /* 9408 * If the user requested a different sense format than the 9409 * one we stored, then we need to convert it to the other 9410 * format. If we're going from descriptor to fixed format 9411 * sense data, we may lose things in translation, depending 9412 * on what options were used. 9413 * 9414 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9415 * for some reason we'll just copy it out as-is. 9416 */ 9417 if ((stored_format == SSD_TYPE_FIXED) 9418 && (sense_format == SSD_TYPE_DESC)) 9419 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9420 &lun->pending_sense[initidx], 9421 (struct scsi_sense_data_desc *)sense_ptr); 9422 else if ((stored_format == SSD_TYPE_DESC) 9423 && (sense_format == SSD_TYPE_FIXED)) 9424 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9425 &lun->pending_sense[initidx], 9426 (struct scsi_sense_data_fixed *)sense_ptr); 9427 else 9428 memcpy(sense_ptr, &lun->pending_sense[initidx], 9429 ctl_min(sizeof(*sense_ptr), 9430 sizeof(lun->pending_sense[initidx]))); 9431 9432 ctl_clear_mask(lun->have_ca, initidx); 9433 have_error = 1; 9434 } else 9435#endif 9436 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 9437 ctl_ua_type ua_type; 9438 9439 ua_type = ctl_build_ua(&lun->pending_ua[initidx], 9440 sense_ptr, sense_format); 9441 if (ua_type != CTL_UA_NONE) 9442 have_error = 1; 9443 } 9444 mtx_unlock(&lun->lun_lock); 9445 9446 /* 9447 * We already have a pending error, return it. 9448 */ 9449 if (have_error != 0) { 9450 /* 9451 * We report the SCSI status as OK, since the status of the 9452 * request sense command itself is OK. 9453 * We report 0 for the sense length, because we aren't doing 9454 * autosense in this case. We're reporting sense as 9455 * parameter data. 9456 */ 9457 ctl_set_success(ctsio); 9458 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9459 ctsio->be_move_done = ctl_config_move_done; 9460 ctl_datamove((union ctl_io *)ctsio); 9461 return (CTL_RETVAL_COMPLETE); 9462 } 9463 9464no_sense: 9465 9466 /* 9467 * No sense information to report, so we report that everything is 9468 * okay. 9469 */ 9470 ctl_set_sense_data(sense_ptr, 9471 lun, 9472 sense_format, 9473 /*current_error*/ 1, 9474 /*sense_key*/ SSD_KEY_NO_SENSE, 9475 /*asc*/ 0x00, 9476 /*ascq*/ 0x00, 9477 SSD_ELEM_NONE); 9478 9479 /* 9480 * We report 0 for the sense length, because we aren't doing 9481 * autosense in this case. We're reporting sense as parameter data. 9482 */ 9483 ctl_set_success(ctsio); 9484 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9485 ctsio->be_move_done = ctl_config_move_done; 9486 ctl_datamove((union ctl_io *)ctsio); 9487 return (CTL_RETVAL_COMPLETE); 9488} 9489 9490int 9491ctl_tur(struct ctl_scsiio *ctsio) 9492{ 9493 9494 CTL_DEBUG_PRINT(("ctl_tur\n")); 9495 9496 ctl_set_success(ctsio); 9497 ctl_done((union ctl_io *)ctsio); 9498 9499 return (CTL_RETVAL_COMPLETE); 9500} 9501 9502#ifdef notyet 9503static int 9504ctl_cmddt_inquiry(struct ctl_scsiio *ctsio) 9505{ 9506 9507} 9508#endif 9509 9510static int 9511ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9512{ 9513 struct scsi_vpd_supported_pages *pages; 9514 int sup_page_size; 9515 struct ctl_lun *lun; 9516 9517 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9518 9519 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9520 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9521 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9522 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9523 ctsio->kern_sg_entries = 0; 9524 9525 if (sup_page_size < alloc_len) { 9526 ctsio->residual = alloc_len - sup_page_size; 9527 ctsio->kern_data_len = sup_page_size; 9528 ctsio->kern_total_len = sup_page_size; 9529 } else { 9530 ctsio->residual = 0; 9531 ctsio->kern_data_len = alloc_len; 9532 ctsio->kern_total_len = alloc_len; 9533 } 9534 ctsio->kern_data_resid = 0; 9535 ctsio->kern_rel_offset = 0; 9536 ctsio->kern_sg_entries = 0; 9537 9538 /* 9539 * The control device is always connected. The disk device, on the 9540 * other hand, may not be online all the time. Need to change this 9541 * to figure out whether the disk device is actually online or not. 9542 */ 9543 if (lun != NULL) 9544 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9545 lun->be_lun->lun_type; 9546 else 9547 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9548 9549 pages->length = SCSI_EVPD_NUM_SUPPORTED_PAGES; 9550 /* Supported VPD pages */ 9551 pages->page_list[0] = SVPD_SUPPORTED_PAGES; 9552 /* Serial Number */ 9553 pages->page_list[1] = SVPD_UNIT_SERIAL_NUMBER; 9554 /* Device Identification */ 9555 pages->page_list[2] = SVPD_DEVICE_ID; 9556 /* Extended INQUIRY Data */ 9557 pages->page_list[3] = SVPD_EXTENDED_INQUIRY_DATA; 9558 /* Mode Page Policy */ 9559 pages->page_list[4] = SVPD_MODE_PAGE_POLICY; 9560 /* SCSI Ports */ 9561 pages->page_list[5] = SVPD_SCSI_PORTS; 9562 /* Third-party Copy */ 9563 pages->page_list[6] = SVPD_SCSI_TPC; 9564 /* Block limits */ 9565 pages->page_list[7] = SVPD_BLOCK_LIMITS; 9566 /* Block Device Characteristics */ 9567 pages->page_list[8] = SVPD_BDC; 9568 /* Logical Block Provisioning */ 9569 pages->page_list[9] = SVPD_LBP; 9570 9571 ctl_set_success(ctsio); 9572 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9573 ctsio->be_move_done = ctl_config_move_done; 9574 ctl_datamove((union ctl_io *)ctsio); 9575 return (CTL_RETVAL_COMPLETE); 9576} 9577 9578static int 9579ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9580{ 9581 struct scsi_vpd_unit_serial_number *sn_ptr; 9582 struct ctl_lun *lun; 9583 int data_len; 9584 9585 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9586 9587 data_len = 4 + CTL_SN_LEN; 9588 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9589 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9590 if (data_len < alloc_len) { 9591 ctsio->residual = alloc_len - data_len; 9592 ctsio->kern_data_len = data_len; 9593 ctsio->kern_total_len = data_len; 9594 } else { 9595 ctsio->residual = 0; 9596 ctsio->kern_data_len = alloc_len; 9597 ctsio->kern_total_len = alloc_len; 9598 } 9599 ctsio->kern_data_resid = 0; 9600 ctsio->kern_rel_offset = 0; 9601 ctsio->kern_sg_entries = 0; 9602 9603 /* 9604 * The control device is always connected. The disk device, on the 9605 * other hand, may not be online all the time. Need to change this 9606 * to figure out whether the disk device is actually online or not. 9607 */ 9608 if (lun != NULL) 9609 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9610 lun->be_lun->lun_type; 9611 else 9612 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9613 9614 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9615 sn_ptr->length = CTL_SN_LEN; 9616 /* 9617 * If we don't have a LUN, we just leave the serial number as 9618 * all spaces. 9619 */ 9620 if (lun != NULL) { 9621 strncpy((char *)sn_ptr->serial_num, 9622 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9623 } else 9624 memset(sn_ptr->serial_num, 0x20, CTL_SN_LEN); 9625 9626 ctl_set_success(ctsio); 9627 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9628 ctsio->be_move_done = ctl_config_move_done; 9629 ctl_datamove((union ctl_io *)ctsio); 9630 return (CTL_RETVAL_COMPLETE); 9631} 9632 9633 9634static int 9635ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9636{ 9637 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9638 struct ctl_lun *lun; 9639 int data_len; 9640 9641 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9642 9643 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9644 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9645 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9646 ctsio->kern_sg_entries = 0; 9647 9648 if (data_len < alloc_len) { 9649 ctsio->residual = alloc_len - data_len; 9650 ctsio->kern_data_len = data_len; 9651 ctsio->kern_total_len = data_len; 9652 } else { 9653 ctsio->residual = 0; 9654 ctsio->kern_data_len = alloc_len; 9655 ctsio->kern_total_len = alloc_len; 9656 } 9657 ctsio->kern_data_resid = 0; 9658 ctsio->kern_rel_offset = 0; 9659 ctsio->kern_sg_entries = 0; 9660 9661 /* 9662 * The control device is always connected. The disk device, on the 9663 * other hand, may not be online all the time. 9664 */ 9665 if (lun != NULL) 9666 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9667 lun->be_lun->lun_type; 9668 else 9669 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9670 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9671 eid_ptr->page_length = data_len - 4; 9672 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9673 eid_ptr->flags3 = SVPD_EID_V_SUP; 9674 9675 ctl_set_success(ctsio); 9676 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9677 ctsio->be_move_done = ctl_config_move_done; 9678 ctl_datamove((union ctl_io *)ctsio); 9679 return (CTL_RETVAL_COMPLETE); 9680} 9681 9682static int 9683ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9684{ 9685 struct scsi_vpd_mode_page_policy *mpp_ptr; 9686 struct ctl_lun *lun; 9687 int data_len; 9688 9689 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9690 9691 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9692 sizeof(struct scsi_vpd_mode_page_policy_descr); 9693 9694 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9695 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9696 ctsio->kern_sg_entries = 0; 9697 9698 if (data_len < alloc_len) { 9699 ctsio->residual = alloc_len - data_len; 9700 ctsio->kern_data_len = data_len; 9701 ctsio->kern_total_len = data_len; 9702 } else { 9703 ctsio->residual = 0; 9704 ctsio->kern_data_len = alloc_len; 9705 ctsio->kern_total_len = alloc_len; 9706 } 9707 ctsio->kern_data_resid = 0; 9708 ctsio->kern_rel_offset = 0; 9709 ctsio->kern_sg_entries = 0; 9710 9711 /* 9712 * The control device is always connected. The disk device, on the 9713 * other hand, may not be online all the time. 9714 */ 9715 if (lun != NULL) 9716 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9717 lun->be_lun->lun_type; 9718 else 9719 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9720 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9721 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9722 mpp_ptr->descr[0].page_code = 0x3f; 9723 mpp_ptr->descr[0].subpage_code = 0xff; 9724 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9725 9726 ctl_set_success(ctsio); 9727 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9728 ctsio->be_move_done = ctl_config_move_done; 9729 ctl_datamove((union ctl_io *)ctsio); 9730 return (CTL_RETVAL_COMPLETE); 9731} 9732 9733static int 9734ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9735{ 9736 struct scsi_vpd_device_id *devid_ptr; 9737 struct scsi_vpd_id_descriptor *desc; 9738 struct ctl_softc *ctl_softc; 9739 struct ctl_lun *lun; 9740 struct ctl_port *port; 9741 int data_len; 9742 uint8_t proto; 9743 9744 ctl_softc = control_softc; 9745 9746 port = ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]; 9747 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9748 9749 data_len = sizeof(struct scsi_vpd_device_id) + 9750 sizeof(struct scsi_vpd_id_descriptor) + 9751 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9752 sizeof(struct scsi_vpd_id_descriptor) + 9753 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9754 if (lun && lun->lun_devid) 9755 data_len += lun->lun_devid->len; 9756 if (port->port_devid) 9757 data_len += port->port_devid->len; 9758 if (port->target_devid) 9759 data_len += port->target_devid->len; 9760 9761 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9762 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9763 ctsio->kern_sg_entries = 0; 9764 9765 if (data_len < alloc_len) { 9766 ctsio->residual = alloc_len - data_len; 9767 ctsio->kern_data_len = data_len; 9768 ctsio->kern_total_len = data_len; 9769 } else { 9770 ctsio->residual = 0; 9771 ctsio->kern_data_len = alloc_len; 9772 ctsio->kern_total_len = alloc_len; 9773 } 9774 ctsio->kern_data_resid = 0; 9775 ctsio->kern_rel_offset = 0; 9776 ctsio->kern_sg_entries = 0; 9777 9778 /* 9779 * The control device is always connected. The disk device, on the 9780 * other hand, may not be online all the time. 9781 */ 9782 if (lun != NULL) 9783 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9784 lun->be_lun->lun_type; 9785 else 9786 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9787 devid_ptr->page_code = SVPD_DEVICE_ID; 9788 scsi_ulto2b(data_len - 4, devid_ptr->length); 9789 9790 if (port->port_type == CTL_PORT_FC) 9791 proto = SCSI_PROTO_FC << 4; 9792 else if (port->port_type == CTL_PORT_ISCSI) 9793 proto = SCSI_PROTO_ISCSI << 4; 9794 else 9795 proto = SCSI_PROTO_SPI << 4; 9796 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9797 9798 /* 9799 * We're using a LUN association here. i.e., this device ID is a 9800 * per-LUN identifier. 9801 */ 9802 if (lun && lun->lun_devid) { 9803 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9804 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9805 lun->lun_devid->len); 9806 } 9807 9808 /* 9809 * This is for the WWPN which is a port association. 9810 */ 9811 if (port->port_devid) { 9812 memcpy(desc, port->port_devid->data, port->port_devid->len); 9813 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9814 port->port_devid->len); 9815 } 9816 9817 /* 9818 * This is for the Relative Target Port(type 4h) identifier 9819 */ 9820 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9821 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9822 SVPD_ID_TYPE_RELTARG; 9823 desc->length = 4; 9824 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9825 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9826 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9827 9828 /* 9829 * This is for the Target Port Group(type 5h) identifier 9830 */ 9831 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9832 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9833 SVPD_ID_TYPE_TPORTGRP; 9834 desc->length = 4; 9835 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS + 1, 9836 &desc->identifier[2]); 9837 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9838 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9839 9840 /* 9841 * This is for the Target identifier 9842 */ 9843 if (port->target_devid) { 9844 memcpy(desc, port->target_devid->data, port->target_devid->len); 9845 } 9846 9847 ctl_set_success(ctsio); 9848 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9849 ctsio->be_move_done = ctl_config_move_done; 9850 ctl_datamove((union ctl_io *)ctsio); 9851 return (CTL_RETVAL_COMPLETE); 9852} 9853 9854static int 9855ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 9856{ 9857 struct ctl_softc *softc = control_softc; 9858 struct scsi_vpd_scsi_ports *sp; 9859 struct scsi_vpd_port_designation *pd; 9860 struct scsi_vpd_port_designation_cont *pdc; 9861 struct ctl_lun *lun; 9862 struct ctl_port *port; 9863 int data_len, num_target_ports, iid_len, id_len, g, pg, p; 9864 int num_target_port_groups; 9865 9866 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9867 9868 if (softc->is_single) 9869 num_target_port_groups = 1; 9870 else 9871 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 9872 num_target_ports = 0; 9873 iid_len = 0; 9874 id_len = 0; 9875 mtx_lock(&softc->ctl_lock); 9876 STAILQ_FOREACH(port, &softc->port_list, links) { 9877 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9878 continue; 9879 if (lun != NULL && 9880 ctl_map_lun_back(port->targ_port, lun->lun) >= 9881 CTL_MAX_LUNS) 9882 continue; 9883 num_target_ports++; 9884 if (port->init_devid) 9885 iid_len += port->init_devid->len; 9886 if (port->port_devid) 9887 id_len += port->port_devid->len; 9888 } 9889 mtx_unlock(&softc->ctl_lock); 9890 9891 data_len = sizeof(struct scsi_vpd_scsi_ports) + num_target_port_groups * 9892 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 9893 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 9894 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9895 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 9896 ctsio->kern_sg_entries = 0; 9897 9898 if (data_len < alloc_len) { 9899 ctsio->residual = alloc_len - data_len; 9900 ctsio->kern_data_len = data_len; 9901 ctsio->kern_total_len = data_len; 9902 } else { 9903 ctsio->residual = 0; 9904 ctsio->kern_data_len = alloc_len; 9905 ctsio->kern_total_len = alloc_len; 9906 } 9907 ctsio->kern_data_resid = 0; 9908 ctsio->kern_rel_offset = 0; 9909 ctsio->kern_sg_entries = 0; 9910 9911 /* 9912 * The control device is always connected. The disk device, on the 9913 * other hand, may not be online all the time. Need to change this 9914 * to figure out whether the disk device is actually online or not. 9915 */ 9916 if (lun != NULL) 9917 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 9918 lun->be_lun->lun_type; 9919 else 9920 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9921 9922 sp->page_code = SVPD_SCSI_PORTS; 9923 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 9924 sp->page_length); 9925 pd = &sp->design[0]; 9926 9927 mtx_lock(&softc->ctl_lock); 9928 pg = softc->port_offset / CTL_MAX_PORTS; 9929 for (g = 0; g < num_target_port_groups; g++) { 9930 STAILQ_FOREACH(port, &softc->port_list, links) { 9931 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9932 continue; 9933 if (lun != NULL && 9934 ctl_map_lun_back(port->targ_port, lun->lun) >= 9935 CTL_MAX_LUNS) 9936 continue; 9937 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 9938 scsi_ulto2b(p, pd->relative_port_id); 9939 if (port->init_devid && g == pg) { 9940 iid_len = port->init_devid->len; 9941 memcpy(pd->initiator_transportid, 9942 port->init_devid->data, port->init_devid->len); 9943 } else 9944 iid_len = 0; 9945 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 9946 pdc = (struct scsi_vpd_port_designation_cont *) 9947 (&pd->initiator_transportid[iid_len]); 9948 if (port->port_devid && g == pg) { 9949 id_len = port->port_devid->len; 9950 memcpy(pdc->target_port_descriptors, 9951 port->port_devid->data, port->port_devid->len); 9952 } else 9953 id_len = 0; 9954 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 9955 pd = (struct scsi_vpd_port_designation *) 9956 ((uint8_t *)pdc->target_port_descriptors + id_len); 9957 } 9958 } 9959 mtx_unlock(&softc->ctl_lock); 9960 9961 ctl_set_success(ctsio); 9962 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9963 ctsio->be_move_done = ctl_config_move_done; 9964 ctl_datamove((union ctl_io *)ctsio); 9965 return (CTL_RETVAL_COMPLETE); 9966} 9967 9968static int 9969ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 9970{ 9971 struct scsi_vpd_block_limits *bl_ptr; 9972 struct ctl_lun *lun; 9973 int bs; 9974 9975 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9976 9977 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 9978 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 9979 ctsio->kern_sg_entries = 0; 9980 9981 if (sizeof(*bl_ptr) < alloc_len) { 9982 ctsio->residual = alloc_len - sizeof(*bl_ptr); 9983 ctsio->kern_data_len = sizeof(*bl_ptr); 9984 ctsio->kern_total_len = sizeof(*bl_ptr); 9985 } else { 9986 ctsio->residual = 0; 9987 ctsio->kern_data_len = alloc_len; 9988 ctsio->kern_total_len = alloc_len; 9989 } 9990 ctsio->kern_data_resid = 0; 9991 ctsio->kern_rel_offset = 0; 9992 ctsio->kern_sg_entries = 0; 9993 9994 /* 9995 * The control device is always connected. The disk device, on the 9996 * other hand, may not be online all the time. Need to change this 9997 * to figure out whether the disk device is actually online or not. 9998 */ 9999 if (lun != NULL) 10000 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10001 lun->be_lun->lun_type; 10002 else 10003 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10004 10005 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 10006 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 10007 bl_ptr->max_cmp_write_len = 0xff; 10008 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 10009 if (lun != NULL) { 10010 bs = lun->be_lun->blocksize; 10011 scsi_ulto4b(MAXPHYS / bs, bl_ptr->opt_txfer_len); 10012 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10013 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 10014 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 10015 if (lun->be_lun->pblockexp != 0) { 10016 scsi_ulto4b((1 << lun->be_lun->pblockexp), 10017 bl_ptr->opt_unmap_grain); 10018 scsi_ulto4b(0x80000000 | lun->be_lun->pblockoff, 10019 bl_ptr->unmap_grain_align); 10020 } 10021 } 10022 scsi_ulto4b(lun->be_lun->atomicblock, 10023 bl_ptr->max_atomic_transfer_length); 10024 scsi_ulto4b(0, bl_ptr->atomic_alignment); 10025 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 10026 } 10027 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 10028 10029 ctl_set_success(ctsio); 10030 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10031 ctsio->be_move_done = ctl_config_move_done; 10032 ctl_datamove((union ctl_io *)ctsio); 10033 return (CTL_RETVAL_COMPLETE); 10034} 10035 10036static int 10037ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 10038{ 10039 struct scsi_vpd_block_device_characteristics *bdc_ptr; 10040 struct ctl_lun *lun; 10041 const char *value; 10042 u_int i; 10043 10044 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10045 10046 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 10047 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 10048 ctsio->kern_sg_entries = 0; 10049 10050 if (sizeof(*bdc_ptr) < alloc_len) { 10051 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 10052 ctsio->kern_data_len = sizeof(*bdc_ptr); 10053 ctsio->kern_total_len = sizeof(*bdc_ptr); 10054 } else { 10055 ctsio->residual = 0; 10056 ctsio->kern_data_len = alloc_len; 10057 ctsio->kern_total_len = alloc_len; 10058 } 10059 ctsio->kern_data_resid = 0; 10060 ctsio->kern_rel_offset = 0; 10061 ctsio->kern_sg_entries = 0; 10062 10063 /* 10064 * The control device is always connected. The disk device, on the 10065 * other hand, may not be online all the time. Need to change this 10066 * to figure out whether the disk device is actually online or not. 10067 */ 10068 if (lun != NULL) 10069 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10070 lun->be_lun->lun_type; 10071 else 10072 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10073 bdc_ptr->page_code = SVPD_BDC; 10074 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 10075 if (lun != NULL && 10076 (value = ctl_get_opt(&lun->be_lun->options, "rpm")) != NULL) 10077 i = strtol(value, NULL, 0); 10078 else 10079 i = CTL_DEFAULT_ROTATION_RATE; 10080 scsi_ulto2b(i, bdc_ptr->medium_rotation_rate); 10081 if (lun != NULL && 10082 (value = ctl_get_opt(&lun->be_lun->options, "formfactor")) != NULL) 10083 i = strtol(value, NULL, 0); 10084 else 10085 i = 0; 10086 bdc_ptr->wab_wac_ff = (i & 0x0f); 10087 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 10088 10089 ctl_set_success(ctsio); 10090 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10091 ctsio->be_move_done = ctl_config_move_done; 10092 ctl_datamove((union ctl_io *)ctsio); 10093 return (CTL_RETVAL_COMPLETE); 10094} 10095 10096static int 10097ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10098{ 10099 struct scsi_vpd_logical_block_prov *lbp_ptr; 10100 struct ctl_lun *lun; 10101 10102 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10103 10104 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10105 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10106 ctsio->kern_sg_entries = 0; 10107 10108 if (sizeof(*lbp_ptr) < alloc_len) { 10109 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10110 ctsio->kern_data_len = sizeof(*lbp_ptr); 10111 ctsio->kern_total_len = sizeof(*lbp_ptr); 10112 } else { 10113 ctsio->residual = 0; 10114 ctsio->kern_data_len = alloc_len; 10115 ctsio->kern_total_len = alloc_len; 10116 } 10117 ctsio->kern_data_resid = 0; 10118 ctsio->kern_rel_offset = 0; 10119 ctsio->kern_sg_entries = 0; 10120 10121 /* 10122 * The control device is always connected. The disk device, on the 10123 * other hand, may not be online all the time. Need to change this 10124 * to figure out whether the disk device is actually online or not. 10125 */ 10126 if (lun != NULL) 10127 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10128 lun->be_lun->lun_type; 10129 else 10130 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10131 10132 lbp_ptr->page_code = SVPD_LBP; 10133 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10134 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10135 lbp_ptr->threshold_exponent = CTL_LBP_EXPONENT; 10136 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10137 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10138 lbp_ptr->prov_type = SVPD_LBP_THIN; 10139 } 10140 10141 ctl_set_success(ctsio); 10142 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10143 ctsio->be_move_done = ctl_config_move_done; 10144 ctl_datamove((union ctl_io *)ctsio); 10145 return (CTL_RETVAL_COMPLETE); 10146} 10147 10148static int 10149ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10150{ 10151 struct scsi_inquiry *cdb; 10152 int alloc_len, retval; 10153 10154 cdb = (struct scsi_inquiry *)ctsio->cdb; 10155 10156 retval = CTL_RETVAL_COMPLETE; 10157 10158 alloc_len = scsi_2btoul(cdb->length); 10159 10160 switch (cdb->page_code) { 10161 case SVPD_SUPPORTED_PAGES: 10162 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10163 break; 10164 case SVPD_UNIT_SERIAL_NUMBER: 10165 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10166 break; 10167 case SVPD_DEVICE_ID: 10168 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10169 break; 10170 case SVPD_EXTENDED_INQUIRY_DATA: 10171 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10172 break; 10173 case SVPD_MODE_PAGE_POLICY: 10174 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10175 break; 10176 case SVPD_SCSI_PORTS: 10177 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10178 break; 10179 case SVPD_SCSI_TPC: 10180 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10181 break; 10182 case SVPD_BLOCK_LIMITS: 10183 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10184 break; 10185 case SVPD_BDC: 10186 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10187 break; 10188 case SVPD_LBP: 10189 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10190 break; 10191 default: 10192 ctl_set_invalid_field(ctsio, 10193 /*sks_valid*/ 1, 10194 /*command*/ 1, 10195 /*field*/ 2, 10196 /*bit_valid*/ 0, 10197 /*bit*/ 0); 10198 ctl_done((union ctl_io *)ctsio); 10199 retval = CTL_RETVAL_COMPLETE; 10200 break; 10201 } 10202 10203 return (retval); 10204} 10205 10206static int 10207ctl_inquiry_std(struct ctl_scsiio *ctsio) 10208{ 10209 struct scsi_inquiry_data *inq_ptr; 10210 struct scsi_inquiry *cdb; 10211 struct ctl_softc *ctl_softc; 10212 struct ctl_lun *lun; 10213 char *val; 10214 uint32_t alloc_len, data_len; 10215 ctl_port_type port_type; 10216 10217 ctl_softc = control_softc; 10218 10219 /* 10220 * Figure out whether we're talking to a Fibre Channel port or not. 10221 * We treat the ioctl front end, and any SCSI adapters, as packetized 10222 * SCSI front ends. 10223 */ 10224 port_type = ctl_softc->ctl_ports[ 10225 ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]->port_type; 10226 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10227 port_type = CTL_PORT_SCSI; 10228 10229 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10230 cdb = (struct scsi_inquiry *)ctsio->cdb; 10231 alloc_len = scsi_2btoul(cdb->length); 10232 10233 /* 10234 * We malloc the full inquiry data size here and fill it 10235 * in. If the user only asks for less, we'll give him 10236 * that much. 10237 */ 10238 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10239 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10240 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10241 ctsio->kern_sg_entries = 0; 10242 ctsio->kern_data_resid = 0; 10243 ctsio->kern_rel_offset = 0; 10244 10245 if (data_len < alloc_len) { 10246 ctsio->residual = alloc_len - data_len; 10247 ctsio->kern_data_len = data_len; 10248 ctsio->kern_total_len = data_len; 10249 } else { 10250 ctsio->residual = 0; 10251 ctsio->kern_data_len = alloc_len; 10252 ctsio->kern_total_len = alloc_len; 10253 } 10254 10255 /* 10256 * If we have a LUN configured, report it as connected. Otherwise, 10257 * report that it is offline or no device is supported, depending 10258 * on the value of inquiry_pq_no_lun. 10259 * 10260 * According to the spec (SPC-4 r34), the peripheral qualifier 10261 * SID_QUAL_LU_OFFLINE (001b) is used in the following scenario: 10262 * 10263 * "A peripheral device having the specified peripheral device type 10264 * is not connected to this logical unit. However, the device 10265 * server is capable of supporting the specified peripheral device 10266 * type on this logical unit." 10267 * 10268 * According to the same spec, the peripheral qualifier 10269 * SID_QUAL_BAD_LU (011b) is used in this scenario: 10270 * 10271 * "The device server is not capable of supporting a peripheral 10272 * device on this logical unit. For this peripheral qualifier the 10273 * peripheral device type shall be set to 1Fh. All other peripheral 10274 * device type values are reserved for this peripheral qualifier." 10275 * 10276 * Given the text, it would seem that we probably want to report that 10277 * the LUN is offline here. There is no LUN connected, but we can 10278 * support a LUN at the given LUN number. 10279 * 10280 * In the real world, though, it sounds like things are a little 10281 * different: 10282 * 10283 * - Linux, when presented with a LUN with the offline peripheral 10284 * qualifier, will create an sg driver instance for it. So when 10285 * you attach it to CTL, you wind up with a ton of sg driver 10286 * instances. (One for every LUN that Linux bothered to probe.) 10287 * Linux does this despite the fact that it issues a REPORT LUNs 10288 * to LUN 0 to get the inventory of supported LUNs. 10289 * 10290 * - There is other anecdotal evidence (from Emulex folks) about 10291 * arrays that use the offline peripheral qualifier for LUNs that 10292 * are on the "passive" path in an active/passive array. 10293 * 10294 * So the solution is provide a hopefully reasonable default 10295 * (return bad/no LUN) and allow the user to change the behavior 10296 * with a tunable/sysctl variable. 10297 */ 10298 if (lun != NULL) 10299 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10300 lun->be_lun->lun_type; 10301 else if (ctl_softc->inquiry_pq_no_lun == 0) 10302 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10303 else 10304 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10305 10306 /* RMB in byte 2 is 0 */ 10307 inq_ptr->version = SCSI_REV_SPC4; 10308 10309 /* 10310 * According to SAM-3, even if a device only supports a single 10311 * level of LUN addressing, it should still set the HISUP bit: 10312 * 10313 * 4.9.1 Logical unit numbers overview 10314 * 10315 * All logical unit number formats described in this standard are 10316 * hierarchical in structure even when only a single level in that 10317 * hierarchy is used. The HISUP bit shall be set to one in the 10318 * standard INQUIRY data (see SPC-2) when any logical unit number 10319 * format described in this standard is used. Non-hierarchical 10320 * formats are outside the scope of this standard. 10321 * 10322 * Therefore we set the HiSup bit here. 10323 * 10324 * The reponse format is 2, per SPC-3. 10325 */ 10326 inq_ptr->response_format = SID_HiSup | 2; 10327 10328 inq_ptr->additional_length = data_len - 10329 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10330 CTL_DEBUG_PRINT(("additional_length = %d\n", 10331 inq_ptr->additional_length)); 10332 10333 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10334 /* 16 bit addressing */ 10335 if (port_type == CTL_PORT_SCSI) 10336 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10337 /* XXX set the SID_MultiP bit here if we're actually going to 10338 respond on multiple ports */ 10339 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10340 10341 /* 16 bit data bus, synchronous transfers */ 10342 if (port_type == CTL_PORT_SCSI) 10343 inq_ptr->flags = SID_WBus16 | SID_Sync; 10344 /* 10345 * XXX KDM do we want to support tagged queueing on the control 10346 * device at all? 10347 */ 10348 if ((lun == NULL) 10349 || (lun->be_lun->lun_type != T_PROCESSOR)) 10350 inq_ptr->flags |= SID_CmdQue; 10351 /* 10352 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10353 * We have 8 bytes for the vendor name, and 16 bytes for the device 10354 * name and 4 bytes for the revision. 10355 */ 10356 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10357 "vendor")) == NULL) { 10358 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10359 } else { 10360 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10361 strncpy(inq_ptr->vendor, val, 10362 min(sizeof(inq_ptr->vendor), strlen(val))); 10363 } 10364 if (lun == NULL) { 10365 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10366 sizeof(inq_ptr->product)); 10367 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10368 switch (lun->be_lun->lun_type) { 10369 case T_DIRECT: 10370 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10371 sizeof(inq_ptr->product)); 10372 break; 10373 case T_PROCESSOR: 10374 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10375 sizeof(inq_ptr->product)); 10376 break; 10377 default: 10378 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10379 sizeof(inq_ptr->product)); 10380 break; 10381 } 10382 } else { 10383 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10384 strncpy(inq_ptr->product, val, 10385 min(sizeof(inq_ptr->product), strlen(val))); 10386 } 10387 10388 /* 10389 * XXX make this a macro somewhere so it automatically gets 10390 * incremented when we make changes. 10391 */ 10392 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10393 "revision")) == NULL) { 10394 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10395 } else { 10396 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10397 strncpy(inq_ptr->revision, val, 10398 min(sizeof(inq_ptr->revision), strlen(val))); 10399 } 10400 10401 /* 10402 * For parallel SCSI, we support double transition and single 10403 * transition clocking. We also support QAS (Quick Arbitration 10404 * and Selection) and Information Unit transfers on both the 10405 * control and array devices. 10406 */ 10407 if (port_type == CTL_PORT_SCSI) 10408 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10409 SID_SPI_IUS; 10410 10411 /* SAM-5 (no version claimed) */ 10412 scsi_ulto2b(0x00A0, inq_ptr->version1); 10413 /* SPC-4 (no version claimed) */ 10414 scsi_ulto2b(0x0460, inq_ptr->version2); 10415 if (port_type == CTL_PORT_FC) { 10416 /* FCP-2 ANSI INCITS.350:2003 */ 10417 scsi_ulto2b(0x0917, inq_ptr->version3); 10418 } else if (port_type == CTL_PORT_SCSI) { 10419 /* SPI-4 ANSI INCITS.362:200x */ 10420 scsi_ulto2b(0x0B56, inq_ptr->version3); 10421 } else if (port_type == CTL_PORT_ISCSI) { 10422 /* iSCSI (no version claimed) */ 10423 scsi_ulto2b(0x0960, inq_ptr->version3); 10424 } else if (port_type == CTL_PORT_SAS) { 10425 /* SAS (no version claimed) */ 10426 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10427 } 10428 10429 if (lun == NULL) { 10430 /* SBC-4 (no version claimed) */ 10431 scsi_ulto2b(0x0600, inq_ptr->version4); 10432 } else { 10433 switch (lun->be_lun->lun_type) { 10434 case T_DIRECT: 10435 /* SBC-4 (no version claimed) */ 10436 scsi_ulto2b(0x0600, inq_ptr->version4); 10437 break; 10438 case T_PROCESSOR: 10439 default: 10440 break; 10441 } 10442 } 10443 10444 ctl_set_success(ctsio); 10445 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10446 ctsio->be_move_done = ctl_config_move_done; 10447 ctl_datamove((union ctl_io *)ctsio); 10448 return (CTL_RETVAL_COMPLETE); 10449} 10450 10451int 10452ctl_inquiry(struct ctl_scsiio *ctsio) 10453{ 10454 struct scsi_inquiry *cdb; 10455 int retval; 10456 10457 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10458 10459 cdb = (struct scsi_inquiry *)ctsio->cdb; 10460 if (cdb->byte2 & SI_EVPD) 10461 retval = ctl_inquiry_evpd(ctsio); 10462 else if (cdb->page_code == 0) 10463 retval = ctl_inquiry_std(ctsio); 10464 else { 10465 ctl_set_invalid_field(ctsio, 10466 /*sks_valid*/ 1, 10467 /*command*/ 1, 10468 /*field*/ 2, 10469 /*bit_valid*/ 0, 10470 /*bit*/ 0); 10471 ctl_done((union ctl_io *)ctsio); 10472 return (CTL_RETVAL_COMPLETE); 10473 } 10474 10475 return (retval); 10476} 10477 10478/* 10479 * For known CDB types, parse the LBA and length. 10480 */ 10481static int 10482ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10483{ 10484 if (io->io_hdr.io_type != CTL_IO_SCSI) 10485 return (1); 10486 10487 switch (io->scsiio.cdb[0]) { 10488 case COMPARE_AND_WRITE: { 10489 struct scsi_compare_and_write *cdb; 10490 10491 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10492 10493 *lba = scsi_8btou64(cdb->addr); 10494 *len = cdb->length; 10495 break; 10496 } 10497 case READ_6: 10498 case WRITE_6: { 10499 struct scsi_rw_6 *cdb; 10500 10501 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10502 10503 *lba = scsi_3btoul(cdb->addr); 10504 /* only 5 bits are valid in the most significant address byte */ 10505 *lba &= 0x1fffff; 10506 *len = cdb->length; 10507 break; 10508 } 10509 case READ_10: 10510 case WRITE_10: { 10511 struct scsi_rw_10 *cdb; 10512 10513 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10514 10515 *lba = scsi_4btoul(cdb->addr); 10516 *len = scsi_2btoul(cdb->length); 10517 break; 10518 } 10519 case WRITE_VERIFY_10: { 10520 struct scsi_write_verify_10 *cdb; 10521 10522 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10523 10524 *lba = scsi_4btoul(cdb->addr); 10525 *len = scsi_2btoul(cdb->length); 10526 break; 10527 } 10528 case READ_12: 10529 case WRITE_12: { 10530 struct scsi_rw_12 *cdb; 10531 10532 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10533 10534 *lba = scsi_4btoul(cdb->addr); 10535 *len = scsi_4btoul(cdb->length); 10536 break; 10537 } 10538 case WRITE_VERIFY_12: { 10539 struct scsi_write_verify_12 *cdb; 10540 10541 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10542 10543 *lba = scsi_4btoul(cdb->addr); 10544 *len = scsi_4btoul(cdb->length); 10545 break; 10546 } 10547 case READ_16: 10548 case WRITE_16: 10549 case WRITE_ATOMIC_16: { 10550 struct scsi_rw_16 *cdb; 10551 10552 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10553 10554 *lba = scsi_8btou64(cdb->addr); 10555 *len = scsi_4btoul(cdb->length); 10556 break; 10557 } 10558 case WRITE_VERIFY_16: { 10559 struct scsi_write_verify_16 *cdb; 10560 10561 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10562 10563 *lba = scsi_8btou64(cdb->addr); 10564 *len = scsi_4btoul(cdb->length); 10565 break; 10566 } 10567 case WRITE_SAME_10: { 10568 struct scsi_write_same_10 *cdb; 10569 10570 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10571 10572 *lba = scsi_4btoul(cdb->addr); 10573 *len = scsi_2btoul(cdb->length); 10574 break; 10575 } 10576 case WRITE_SAME_16: { 10577 struct scsi_write_same_16 *cdb; 10578 10579 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10580 10581 *lba = scsi_8btou64(cdb->addr); 10582 *len = scsi_4btoul(cdb->length); 10583 break; 10584 } 10585 case VERIFY_10: { 10586 struct scsi_verify_10 *cdb; 10587 10588 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10589 10590 *lba = scsi_4btoul(cdb->addr); 10591 *len = scsi_2btoul(cdb->length); 10592 break; 10593 } 10594 case VERIFY_12: { 10595 struct scsi_verify_12 *cdb; 10596 10597 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10598 10599 *lba = scsi_4btoul(cdb->addr); 10600 *len = scsi_4btoul(cdb->length); 10601 break; 10602 } 10603 case VERIFY_16: { 10604 struct scsi_verify_16 *cdb; 10605 10606 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10607 10608 *lba = scsi_8btou64(cdb->addr); 10609 *len = scsi_4btoul(cdb->length); 10610 break; 10611 } 10612 case UNMAP: { 10613 *lba = 0; 10614 *len = UINT64_MAX; 10615 break; 10616 } 10617 default: 10618 return (1); 10619 break; /* NOTREACHED */ 10620 } 10621 10622 return (0); 10623} 10624 10625static ctl_action 10626ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2) 10627{ 10628 uint64_t endlba1, endlba2; 10629 10630 endlba1 = lba1 + len1 - 1; 10631 endlba2 = lba2 + len2 - 1; 10632 10633 if ((endlba1 < lba2) 10634 || (endlba2 < lba1)) 10635 return (CTL_ACTION_PASS); 10636 else 10637 return (CTL_ACTION_BLOCK); 10638} 10639 10640static int 10641ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10642{ 10643 struct ctl_ptr_len_flags *ptrlen; 10644 struct scsi_unmap_desc *buf, *end, *range; 10645 uint64_t lba; 10646 uint32_t len; 10647 10648 /* If not UNMAP -- go other way. */ 10649 if (io->io_hdr.io_type != CTL_IO_SCSI || 10650 io->scsiio.cdb[0] != UNMAP) 10651 return (CTL_ACTION_ERROR); 10652 10653 /* If UNMAP without data -- block and wait for data. */ 10654 ptrlen = (struct ctl_ptr_len_flags *) 10655 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10656 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10657 ptrlen->ptr == NULL) 10658 return (CTL_ACTION_BLOCK); 10659 10660 /* UNMAP with data -- check for collision. */ 10661 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10662 end = buf + ptrlen->len / sizeof(*buf); 10663 for (range = buf; range < end; range++) { 10664 lba = scsi_8btou64(range->lba); 10665 len = scsi_4btoul(range->length); 10666 if ((lba < lba2 + len2) && (lba + len > lba2)) 10667 return (CTL_ACTION_BLOCK); 10668 } 10669 return (CTL_ACTION_PASS); 10670} 10671 10672static ctl_action 10673ctl_extent_check(union ctl_io *io1, union ctl_io *io2) 10674{ 10675 uint64_t lba1, lba2; 10676 uint64_t len1, len2; 10677 int retval; 10678 10679 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10680 return (CTL_ACTION_ERROR); 10681 10682 retval = ctl_extent_check_unmap(io2, lba1, len1); 10683 if (retval != CTL_ACTION_ERROR) 10684 return (retval); 10685 10686 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10687 return (CTL_ACTION_ERROR); 10688 10689 return (ctl_extent_check_lba(lba1, len1, lba2, len2)); 10690} 10691 10692static ctl_action 10693ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10694 union ctl_io *ooa_io) 10695{ 10696 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10697 ctl_serialize_action *serialize_row; 10698 10699 /* 10700 * The initiator attempted multiple untagged commands at the same 10701 * time. Can't do that. 10702 */ 10703 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10704 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10705 && ((pending_io->io_hdr.nexus.targ_port == 10706 ooa_io->io_hdr.nexus.targ_port) 10707 && (pending_io->io_hdr.nexus.initid.id == 10708 ooa_io->io_hdr.nexus.initid.id)) 10709 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10710 return (CTL_ACTION_OVERLAP); 10711 10712 /* 10713 * The initiator attempted to send multiple tagged commands with 10714 * the same ID. (It's fine if different initiators have the same 10715 * tag ID.) 10716 * 10717 * Even if all of those conditions are true, we don't kill the I/O 10718 * if the command ahead of us has been aborted. We won't end up 10719 * sending it to the FETD, and it's perfectly legal to resend a 10720 * command with the same tag number as long as the previous 10721 * instance of this tag number has been aborted somehow. 10722 */ 10723 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10724 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10725 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10726 && ((pending_io->io_hdr.nexus.targ_port == 10727 ooa_io->io_hdr.nexus.targ_port) 10728 && (pending_io->io_hdr.nexus.initid.id == 10729 ooa_io->io_hdr.nexus.initid.id)) 10730 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10731 return (CTL_ACTION_OVERLAP_TAG); 10732 10733 /* 10734 * If we get a head of queue tag, SAM-3 says that we should 10735 * immediately execute it. 10736 * 10737 * What happens if this command would normally block for some other 10738 * reason? e.g. a request sense with a head of queue tag 10739 * immediately after a write. Normally that would block, but this 10740 * will result in its getting executed immediately... 10741 * 10742 * We currently return "pass" instead of "skip", so we'll end up 10743 * going through the rest of the queue to check for overlapped tags. 10744 * 10745 * XXX KDM check for other types of blockage first?? 10746 */ 10747 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10748 return (CTL_ACTION_PASS); 10749 10750 /* 10751 * Ordered tags have to block until all items ahead of them 10752 * have completed. If we get called with an ordered tag, we always 10753 * block, if something else is ahead of us in the queue. 10754 */ 10755 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 10756 return (CTL_ACTION_BLOCK); 10757 10758 /* 10759 * Simple tags get blocked until all head of queue and ordered tags 10760 * ahead of them have completed. I'm lumping untagged commands in 10761 * with simple tags here. XXX KDM is that the right thing to do? 10762 */ 10763 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10764 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 10765 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10766 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 10767 return (CTL_ACTION_BLOCK); 10768 10769 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 10770 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 10771 10772 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 10773 10774 switch (serialize_row[pending_entry->seridx]) { 10775 case CTL_SER_BLOCK: 10776 return (CTL_ACTION_BLOCK); 10777 case CTL_SER_EXTENT: 10778 return (ctl_extent_check(pending_io, ooa_io)); 10779 case CTL_SER_EXTENTOPT: 10780 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 10781 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 10782 return (ctl_extent_check(pending_io, ooa_io)); 10783 /* FALLTHROUGH */ 10784 case CTL_SER_PASS: 10785 return (CTL_ACTION_PASS); 10786 case CTL_SER_BLOCKOPT: 10787 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 10788 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 10789 return (CTL_ACTION_BLOCK); 10790 return (CTL_ACTION_PASS); 10791 case CTL_SER_SKIP: 10792 return (CTL_ACTION_SKIP); 10793 default: 10794 panic("invalid serialization value %d", 10795 serialize_row[pending_entry->seridx]); 10796 } 10797 10798 return (CTL_ACTION_ERROR); 10799} 10800 10801/* 10802 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 10803 * Assumptions: 10804 * - pending_io is generally either incoming, or on the blocked queue 10805 * - starting I/O is the I/O we want to start the check with. 10806 */ 10807static ctl_action 10808ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 10809 union ctl_io *starting_io) 10810{ 10811 union ctl_io *ooa_io; 10812 ctl_action action; 10813 10814 mtx_assert(&lun->lun_lock, MA_OWNED); 10815 10816 /* 10817 * Run back along the OOA queue, starting with the current 10818 * blocked I/O and going through every I/O before it on the 10819 * queue. If starting_io is NULL, we'll just end up returning 10820 * CTL_ACTION_PASS. 10821 */ 10822 for (ooa_io = starting_io; ooa_io != NULL; 10823 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 10824 ooa_links)){ 10825 10826 /* 10827 * This routine just checks to see whether 10828 * cur_blocked is blocked by ooa_io, which is ahead 10829 * of it in the queue. It doesn't queue/dequeue 10830 * cur_blocked. 10831 */ 10832 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 10833 switch (action) { 10834 case CTL_ACTION_BLOCK: 10835 case CTL_ACTION_OVERLAP: 10836 case CTL_ACTION_OVERLAP_TAG: 10837 case CTL_ACTION_SKIP: 10838 case CTL_ACTION_ERROR: 10839 return (action); 10840 break; /* NOTREACHED */ 10841 case CTL_ACTION_PASS: 10842 break; 10843 default: 10844 panic("invalid action %d", action); 10845 break; /* NOTREACHED */ 10846 } 10847 } 10848 10849 return (CTL_ACTION_PASS); 10850} 10851 10852/* 10853 * Assumptions: 10854 * - An I/O has just completed, and has been removed from the per-LUN OOA 10855 * queue, so some items on the blocked queue may now be unblocked. 10856 */ 10857static int 10858ctl_check_blocked(struct ctl_lun *lun) 10859{ 10860 union ctl_io *cur_blocked, *next_blocked; 10861 10862 mtx_assert(&lun->lun_lock, MA_OWNED); 10863 10864 /* 10865 * Run forward from the head of the blocked queue, checking each 10866 * entry against the I/Os prior to it on the OOA queue to see if 10867 * there is still any blockage. 10868 * 10869 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 10870 * with our removing a variable on it while it is traversing the 10871 * list. 10872 */ 10873 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 10874 cur_blocked != NULL; cur_blocked = next_blocked) { 10875 union ctl_io *prev_ooa; 10876 ctl_action action; 10877 10878 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 10879 blocked_links); 10880 10881 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 10882 ctl_ooaq, ooa_links); 10883 10884 /* 10885 * If cur_blocked happens to be the first item in the OOA 10886 * queue now, prev_ooa will be NULL, and the action 10887 * returned will just be CTL_ACTION_PASS. 10888 */ 10889 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 10890 10891 switch (action) { 10892 case CTL_ACTION_BLOCK: 10893 /* Nothing to do here, still blocked */ 10894 break; 10895 case CTL_ACTION_OVERLAP: 10896 case CTL_ACTION_OVERLAP_TAG: 10897 /* 10898 * This shouldn't happen! In theory we've already 10899 * checked this command for overlap... 10900 */ 10901 break; 10902 case CTL_ACTION_PASS: 10903 case CTL_ACTION_SKIP: { 10904 struct ctl_softc *softc; 10905 const struct ctl_cmd_entry *entry; 10906 int isc_retval; 10907 10908 /* 10909 * The skip case shouldn't happen, this transaction 10910 * should have never made it onto the blocked queue. 10911 */ 10912 /* 10913 * This I/O is no longer blocked, we can remove it 10914 * from the blocked queue. Since this is a TAILQ 10915 * (doubly linked list), we can do O(1) removals 10916 * from any place on the list. 10917 */ 10918 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 10919 blocked_links); 10920 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 10921 10922 if (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC){ 10923 /* 10924 * Need to send IO back to original side to 10925 * run 10926 */ 10927 union ctl_ha_msg msg_info; 10928 10929 msg_info.hdr.original_sc = 10930 cur_blocked->io_hdr.original_sc; 10931 msg_info.hdr.serializing_sc = cur_blocked; 10932 msg_info.hdr.msg_type = CTL_MSG_R2R; 10933 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 10934 &msg_info, sizeof(msg_info), 0)) > 10935 CTL_HA_STATUS_SUCCESS) { 10936 printf("CTL:Check Blocked error from " 10937 "ctl_ha_msg_send %d\n", 10938 isc_retval); 10939 } 10940 break; 10941 } 10942 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 10943 softc = control_softc; 10944 10945 /* 10946 * Check this I/O for LUN state changes that may 10947 * have happened while this command was blocked. 10948 * The LUN state may have been changed by a command 10949 * ahead of us in the queue, so we need to re-check 10950 * for any states that can be caused by SCSI 10951 * commands. 10952 */ 10953 if (ctl_scsiio_lun_check(softc, lun, entry, 10954 &cur_blocked->scsiio) == 0) { 10955 cur_blocked->io_hdr.flags |= 10956 CTL_FLAG_IS_WAS_ON_RTR; 10957 ctl_enqueue_rtr(cur_blocked); 10958 } else 10959 ctl_done(cur_blocked); 10960 break; 10961 } 10962 default: 10963 /* 10964 * This probably shouldn't happen -- we shouldn't 10965 * get CTL_ACTION_ERROR, or anything else. 10966 */ 10967 break; 10968 } 10969 } 10970 10971 return (CTL_RETVAL_COMPLETE); 10972} 10973 10974/* 10975 * This routine (with one exception) checks LUN flags that can be set by 10976 * commands ahead of us in the OOA queue. These flags have to be checked 10977 * when a command initially comes in, and when we pull a command off the 10978 * blocked queue and are preparing to execute it. The reason we have to 10979 * check these flags for commands on the blocked queue is that the LUN 10980 * state may have been changed by a command ahead of us while we're on the 10981 * blocked queue. 10982 * 10983 * Ordering is somewhat important with these checks, so please pay 10984 * careful attention to the placement of any new checks. 10985 */ 10986static int 10987ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 10988 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 10989{ 10990 int retval; 10991 uint32_t residx; 10992 10993 retval = 0; 10994 10995 mtx_assert(&lun->lun_lock, MA_OWNED); 10996 10997 /* 10998 * If this shelf is a secondary shelf controller, we have to reject 10999 * any media access commands. 11000 */ 11001 if ((ctl_softc->flags & CTL_FLAG_ACTIVE_SHELF) == 0 && 11002 (entry->flags & CTL_CMD_FLAG_OK_ON_SECONDARY) == 0) { 11003 ctl_set_lun_standby(ctsio); 11004 retval = 1; 11005 goto bailout; 11006 } 11007 11008 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11009 if (lun->flags & CTL_LUN_READONLY) { 11010 ctl_set_sense(ctsio, /*current_error*/ 1, 11011 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11012 /*asc*/ 0x27, /*ascq*/ 0x01, SSD_ELEM_NONE); 11013 retval = 1; 11014 goto bailout; 11015 } 11016 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT] 11017 .eca_and_aen & SCP_SWP) != 0) { 11018 ctl_set_sense(ctsio, /*current_error*/ 1, 11019 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11020 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11021 retval = 1; 11022 goto bailout; 11023 } 11024 } 11025 11026 /* 11027 * Check for a reservation conflict. If this command isn't allowed 11028 * even on reserved LUNs, and if this initiator isn't the one who 11029 * reserved us, reject the command with a reservation conflict. 11030 */ 11031 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 11032 if ((lun->flags & CTL_LUN_RESERVED) 11033 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11034 if (lun->res_idx != residx) { 11035 ctl_set_reservation_conflict(ctsio); 11036 retval = 1; 11037 goto bailout; 11038 } 11039 } 11040 11041 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0 || 11042 (entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV)) { 11043 /* No reservation or command is allowed. */; 11044 } else if ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_WRESV) && 11045 (lun->res_type == SPR_TYPE_WR_EX || 11046 lun->res_type == SPR_TYPE_WR_EX_RO || 11047 lun->res_type == SPR_TYPE_WR_EX_AR)) { 11048 /* The command is allowed for Write Exclusive resv. */; 11049 } else { 11050 /* 11051 * if we aren't registered or it's a res holder type 11052 * reservation and this isn't the res holder then set a 11053 * conflict. 11054 */ 11055 if (lun->pr_keys[residx] == 0 11056 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 11057 ctl_set_reservation_conflict(ctsio); 11058 retval = 1; 11059 goto bailout; 11060 } 11061 11062 } 11063 11064 if ((lun->flags & CTL_LUN_OFFLINE) 11065 && ((entry->flags & CTL_CMD_FLAG_OK_ON_OFFLINE) == 0)) { 11066 ctl_set_lun_not_ready(ctsio); 11067 retval = 1; 11068 goto bailout; 11069 } 11070 11071 /* 11072 * If the LUN is stopped, see if this particular command is allowed 11073 * for a stopped lun. Otherwise, reject it with 0x04,0x02. 11074 */ 11075 if ((lun->flags & CTL_LUN_STOPPED) 11076 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 11077 /* "Logical unit not ready, initializing cmd. required" */ 11078 ctl_set_lun_stopped(ctsio); 11079 retval = 1; 11080 goto bailout; 11081 } 11082 11083 if ((lun->flags & CTL_LUN_INOPERABLE) 11084 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 11085 /* "Medium format corrupted" */ 11086 ctl_set_medium_format_corrupted(ctsio); 11087 retval = 1; 11088 goto bailout; 11089 } 11090 11091bailout: 11092 return (retval); 11093 11094} 11095 11096static void 11097ctl_failover_io(union ctl_io *io, int have_lock) 11098{ 11099 ctl_set_busy(&io->scsiio); 11100 ctl_done(io); 11101} 11102 11103static void 11104ctl_failover(void) 11105{ 11106 struct ctl_lun *lun; 11107 struct ctl_softc *ctl_softc; 11108 union ctl_io *next_io, *pending_io; 11109 union ctl_io *io; 11110 int lun_idx; 11111 int i; 11112 11113 ctl_softc = control_softc; 11114 11115 mtx_lock(&ctl_softc->ctl_lock); 11116 /* 11117 * Remove any cmds from the other SC from the rtr queue. These 11118 * will obviously only be for LUNs for which we're the primary. 11119 * We can't send status or get/send data for these commands. 11120 * Since they haven't been executed yet, we can just remove them. 11121 * We'll either abort them or delete them below, depending on 11122 * which HA mode we're in. 11123 */ 11124#ifdef notyet 11125 mtx_lock(&ctl_softc->queue_lock); 11126 for (io = (union ctl_io *)STAILQ_FIRST(&ctl_softc->rtr_queue); 11127 io != NULL; io = next_io) { 11128 next_io = (union ctl_io *)STAILQ_NEXT(&io->io_hdr, links); 11129 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11130 STAILQ_REMOVE(&ctl_softc->rtr_queue, &io->io_hdr, 11131 ctl_io_hdr, links); 11132 } 11133 mtx_unlock(&ctl_softc->queue_lock); 11134#endif 11135 11136 for (lun_idx=0; lun_idx < ctl_softc->num_luns; lun_idx++) { 11137 lun = ctl_softc->ctl_luns[lun_idx]; 11138 if (lun==NULL) 11139 continue; 11140 11141 /* 11142 * Processor LUNs are primary on both sides. 11143 * XXX will this always be true? 11144 */ 11145 if (lun->be_lun->lun_type == T_PROCESSOR) 11146 continue; 11147 11148 if ((lun->flags & CTL_LUN_PRIMARY_SC) 11149 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11150 printf("FAILOVER: primary lun %d\n", lun_idx); 11151 /* 11152 * Remove all commands from the other SC. First from the 11153 * blocked queue then from the ooa queue. Once we have 11154 * removed them. Call ctl_check_blocked to see if there 11155 * is anything that can run. 11156 */ 11157 for (io = (union ctl_io *)TAILQ_FIRST( 11158 &lun->blocked_queue); io != NULL; io = next_io) { 11159 11160 next_io = (union ctl_io *)TAILQ_NEXT( 11161 &io->io_hdr, blocked_links); 11162 11163 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11164 TAILQ_REMOVE(&lun->blocked_queue, 11165 &io->io_hdr,blocked_links); 11166 io->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11167 TAILQ_REMOVE(&lun->ooa_queue, 11168 &io->io_hdr, ooa_links); 11169 11170 ctl_free_io(io); 11171 } 11172 } 11173 11174 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11175 io != NULL; io = next_io) { 11176 11177 next_io = (union ctl_io *)TAILQ_NEXT( 11178 &io->io_hdr, ooa_links); 11179 11180 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11181 11182 TAILQ_REMOVE(&lun->ooa_queue, 11183 &io->io_hdr, 11184 ooa_links); 11185 11186 ctl_free_io(io); 11187 } 11188 } 11189 ctl_check_blocked(lun); 11190 } else if ((lun->flags & CTL_LUN_PRIMARY_SC) 11191 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11192 11193 printf("FAILOVER: primary lun %d\n", lun_idx); 11194 /* 11195 * Abort all commands from the other SC. We can't 11196 * send status back for them now. These should get 11197 * cleaned up when they are completed or come out 11198 * for a datamove operation. 11199 */ 11200 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11201 io != NULL; io = next_io) { 11202 next_io = (union ctl_io *)TAILQ_NEXT( 11203 &io->io_hdr, ooa_links); 11204 11205 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11206 io->io_hdr.flags |= CTL_FLAG_ABORT; 11207 } 11208 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11209 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11210 11211 printf("FAILOVER: secondary lun %d\n", lun_idx); 11212 11213 lun->flags |= CTL_LUN_PRIMARY_SC; 11214 11215 /* 11216 * We send all I/O that was sent to this controller 11217 * and redirected to the other side back with 11218 * busy status, and have the initiator retry it. 11219 * Figuring out how much data has been transferred, 11220 * etc. and picking up where we left off would be 11221 * very tricky. 11222 * 11223 * XXX KDM need to remove I/O from the blocked 11224 * queue as well! 11225 */ 11226 for (pending_io = (union ctl_io *)TAILQ_FIRST( 11227 &lun->ooa_queue); pending_io != NULL; 11228 pending_io = next_io) { 11229 11230 next_io = (union ctl_io *)TAILQ_NEXT( 11231 &pending_io->io_hdr, ooa_links); 11232 11233 pending_io->io_hdr.flags &= 11234 ~CTL_FLAG_SENT_2OTHER_SC; 11235 11236 if (pending_io->io_hdr.flags & 11237 CTL_FLAG_IO_ACTIVE) { 11238 pending_io->io_hdr.flags |= 11239 CTL_FLAG_FAILOVER; 11240 } else { 11241 ctl_set_busy(&pending_io->scsiio); 11242 ctl_done(pending_io); 11243 } 11244 } 11245 11246 /* 11247 * Build Unit Attention 11248 */ 11249 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11250 lun->pending_ua[i] |= 11251 CTL_UA_ASYM_ACC_CHANGE; 11252 } 11253 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11254 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11255 printf("FAILOVER: secondary lun %d\n", lun_idx); 11256 /* 11257 * if the first io on the OOA is not on the RtR queue 11258 * add it. 11259 */ 11260 lun->flags |= CTL_LUN_PRIMARY_SC; 11261 11262 pending_io = (union ctl_io *)TAILQ_FIRST( 11263 &lun->ooa_queue); 11264 if (pending_io==NULL) { 11265 printf("Nothing on OOA queue\n"); 11266 continue; 11267 } 11268 11269 pending_io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11270 if ((pending_io->io_hdr.flags & 11271 CTL_FLAG_IS_WAS_ON_RTR) == 0) { 11272 pending_io->io_hdr.flags |= 11273 CTL_FLAG_IS_WAS_ON_RTR; 11274 ctl_enqueue_rtr(pending_io); 11275 } 11276#if 0 11277 else 11278 { 11279 printf("Tag 0x%04x is running\n", 11280 pending_io->scsiio.tag_num); 11281 } 11282#endif 11283 11284 next_io = (union ctl_io *)TAILQ_NEXT( 11285 &pending_io->io_hdr, ooa_links); 11286 for (pending_io=next_io; pending_io != NULL; 11287 pending_io = next_io) { 11288 pending_io->io_hdr.flags &= 11289 ~CTL_FLAG_SENT_2OTHER_SC; 11290 next_io = (union ctl_io *)TAILQ_NEXT( 11291 &pending_io->io_hdr, ooa_links); 11292 if (pending_io->io_hdr.flags & 11293 CTL_FLAG_IS_WAS_ON_RTR) { 11294#if 0 11295 printf("Tag 0x%04x is running\n", 11296 pending_io->scsiio.tag_num); 11297#endif 11298 continue; 11299 } 11300 11301 switch (ctl_check_ooa(lun, pending_io, 11302 (union ctl_io *)TAILQ_PREV( 11303 &pending_io->io_hdr, ctl_ooaq, 11304 ooa_links))) { 11305 11306 case CTL_ACTION_BLOCK: 11307 TAILQ_INSERT_TAIL(&lun->blocked_queue, 11308 &pending_io->io_hdr, 11309 blocked_links); 11310 pending_io->io_hdr.flags |= 11311 CTL_FLAG_BLOCKED; 11312 break; 11313 case CTL_ACTION_PASS: 11314 case CTL_ACTION_SKIP: 11315 pending_io->io_hdr.flags |= 11316 CTL_FLAG_IS_WAS_ON_RTR; 11317 ctl_enqueue_rtr(pending_io); 11318 break; 11319 case CTL_ACTION_OVERLAP: 11320 ctl_set_overlapped_cmd( 11321 (struct ctl_scsiio *)pending_io); 11322 ctl_done(pending_io); 11323 break; 11324 case CTL_ACTION_OVERLAP_TAG: 11325 ctl_set_overlapped_tag( 11326 (struct ctl_scsiio *)pending_io, 11327 pending_io->scsiio.tag_num & 0xff); 11328 ctl_done(pending_io); 11329 break; 11330 case CTL_ACTION_ERROR: 11331 default: 11332 ctl_set_internal_failure( 11333 (struct ctl_scsiio *)pending_io, 11334 0, // sks_valid 11335 0); //retry count 11336 ctl_done(pending_io); 11337 break; 11338 } 11339 } 11340 11341 /* 11342 * Build Unit Attention 11343 */ 11344 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11345 lun->pending_ua[i] |= 11346 CTL_UA_ASYM_ACC_CHANGE; 11347 } 11348 } else { 11349 panic("Unhandled HA mode failover, LUN flags = %#x, " 11350 "ha_mode = #%x", lun->flags, ctl_softc->ha_mode); 11351 } 11352 } 11353 ctl_pause_rtr = 0; 11354 mtx_unlock(&ctl_softc->ctl_lock); 11355} 11356 11357static int 11358ctl_scsiio_precheck(struct ctl_softc *ctl_softc, struct ctl_scsiio *ctsio) 11359{ 11360 struct ctl_lun *lun; 11361 const struct ctl_cmd_entry *entry; 11362 uint32_t initidx, targ_lun; 11363 int retval; 11364 11365 retval = 0; 11366 11367 lun = NULL; 11368 11369 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11370 if ((targ_lun < CTL_MAX_LUNS) 11371 && ((lun = ctl_softc->ctl_luns[targ_lun]) != NULL)) { 11372 /* 11373 * If the LUN is invalid, pretend that it doesn't exist. 11374 * It will go away as soon as all pending I/O has been 11375 * completed. 11376 */ 11377 mtx_lock(&lun->lun_lock); 11378 if (lun->flags & CTL_LUN_DISABLED) { 11379 mtx_unlock(&lun->lun_lock); 11380 lun = NULL; 11381 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11382 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11383 } else { 11384 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11385 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11386 lun->be_lun; 11387 if (lun->be_lun->lun_type == T_PROCESSOR) { 11388 ctsio->io_hdr.flags |= CTL_FLAG_CONTROL_DEV; 11389 } 11390 11391 /* 11392 * Every I/O goes into the OOA queue for a 11393 * particular LUN, and stays there until completion. 11394 */ 11395 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11396 ooa_links); 11397 } 11398 } else { 11399 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11400 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11401 } 11402 11403 /* Get command entry and return error if it is unsuppotyed. */ 11404 entry = ctl_validate_command(ctsio); 11405 if (entry == NULL) { 11406 if (lun) 11407 mtx_unlock(&lun->lun_lock); 11408 return (retval); 11409 } 11410 11411 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11412 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11413 11414 /* 11415 * Check to see whether we can send this command to LUNs that don't 11416 * exist. This should pretty much only be the case for inquiry 11417 * and request sense. Further checks, below, really require having 11418 * a LUN, so we can't really check the command anymore. Just put 11419 * it on the rtr queue. 11420 */ 11421 if (lun == NULL) { 11422 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) { 11423 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11424 ctl_enqueue_rtr((union ctl_io *)ctsio); 11425 return (retval); 11426 } 11427 11428 ctl_set_unsupported_lun(ctsio); 11429 ctl_done((union ctl_io *)ctsio); 11430 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11431 return (retval); 11432 } else { 11433 /* 11434 * Make sure we support this particular command on this LUN. 11435 * e.g., we don't support writes to the control LUN. 11436 */ 11437 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11438 mtx_unlock(&lun->lun_lock); 11439 ctl_set_invalid_opcode(ctsio); 11440 ctl_done((union ctl_io *)ctsio); 11441 return (retval); 11442 } 11443 } 11444 11445 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11446 11447#ifdef CTL_WITH_CA 11448 /* 11449 * If we've got a request sense, it'll clear the contingent 11450 * allegiance condition. Otherwise, if we have a CA condition for 11451 * this initiator, clear it, because it sent down a command other 11452 * than request sense. 11453 */ 11454 if ((ctsio->cdb[0] != REQUEST_SENSE) 11455 && (ctl_is_set(lun->have_ca, initidx))) 11456 ctl_clear_mask(lun->have_ca, initidx); 11457#endif 11458 11459 /* 11460 * If the command has this flag set, it handles its own unit 11461 * attention reporting, we shouldn't do anything. Otherwise we 11462 * check for any pending unit attentions, and send them back to the 11463 * initiator. We only do this when a command initially comes in, 11464 * not when we pull it off the blocked queue. 11465 * 11466 * According to SAM-3, section 5.3.2, the order that things get 11467 * presented back to the host is basically unit attentions caused 11468 * by some sort of reset event, busy status, reservation conflicts 11469 * or task set full, and finally any other status. 11470 * 11471 * One issue here is that some of the unit attentions we report 11472 * don't fall into the "reset" category (e.g. "reported luns data 11473 * has changed"). So reporting it here, before the reservation 11474 * check, may be technically wrong. I guess the only thing to do 11475 * would be to check for and report the reset events here, and then 11476 * check for the other unit attention types after we check for a 11477 * reservation conflict. 11478 * 11479 * XXX KDM need to fix this 11480 */ 11481 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11482 ctl_ua_type ua_type; 11483 11484 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 11485 scsi_sense_data_type sense_format; 11486 11487 if (lun != NULL) 11488 sense_format = (lun->flags & 11489 CTL_LUN_SENSE_DESC) ? SSD_TYPE_DESC : 11490 SSD_TYPE_FIXED; 11491 else 11492 sense_format = SSD_TYPE_FIXED; 11493 11494 ua_type = ctl_build_ua(&lun->pending_ua[initidx], 11495 &ctsio->sense_data, sense_format); 11496 if (ua_type != CTL_UA_NONE) { 11497 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11498 ctsio->io_hdr.status = CTL_SCSI_ERROR | 11499 CTL_AUTOSENSE; 11500 ctsio->sense_len = SSD_FULL_SIZE; 11501 mtx_unlock(&lun->lun_lock); 11502 ctl_done((union ctl_io *)ctsio); 11503 return (retval); 11504 } 11505 } 11506 } 11507 11508 11509 if (ctl_scsiio_lun_check(ctl_softc, lun, entry, ctsio) != 0) { 11510 mtx_unlock(&lun->lun_lock); 11511 ctl_done((union ctl_io *)ctsio); 11512 return (retval); 11513 } 11514 11515 /* 11516 * XXX CHD this is where we want to send IO to other side if 11517 * this LUN is secondary on this SC. We will need to make a copy 11518 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11519 * the copy we send as FROM_OTHER. 11520 * We also need to stuff the address of the original IO so we can 11521 * find it easily. Something similar will need be done on the other 11522 * side so when we are done we can find the copy. 11523 */ 11524 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11525 union ctl_ha_msg msg_info; 11526 int isc_retval; 11527 11528 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11529 11530 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11531 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11532#if 0 11533 printf("1. ctsio %p\n", ctsio); 11534#endif 11535 msg_info.hdr.serializing_sc = NULL; 11536 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11537 msg_info.scsi.tag_num = ctsio->tag_num; 11538 msg_info.scsi.tag_type = ctsio->tag_type; 11539 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11540 11541 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11542 11543 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11544 (void *)&msg_info, sizeof(msg_info), 0)) > 11545 CTL_HA_STATUS_SUCCESS) { 11546 printf("CTL:precheck, ctl_ha_msg_send returned %d\n", 11547 isc_retval); 11548 printf("CTL:opcode is %x\n", ctsio->cdb[0]); 11549 } else { 11550#if 0 11551 printf("CTL:Precheck sent msg, opcode is %x\n",opcode); 11552#endif 11553 } 11554 11555 /* 11556 * XXX KDM this I/O is off the incoming queue, but hasn't 11557 * been inserted on any other queue. We may need to come 11558 * up with a holding queue while we wait for serialization 11559 * so that we have an idea of what we're waiting for from 11560 * the other side. 11561 */ 11562 mtx_unlock(&lun->lun_lock); 11563 return (retval); 11564 } 11565 11566 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11567 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11568 ctl_ooaq, ooa_links))) { 11569 case CTL_ACTION_BLOCK: 11570 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11571 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11572 blocked_links); 11573 mtx_unlock(&lun->lun_lock); 11574 return (retval); 11575 case CTL_ACTION_PASS: 11576 case CTL_ACTION_SKIP: 11577 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11578 mtx_unlock(&lun->lun_lock); 11579 ctl_enqueue_rtr((union ctl_io *)ctsio); 11580 break; 11581 case CTL_ACTION_OVERLAP: 11582 mtx_unlock(&lun->lun_lock); 11583 ctl_set_overlapped_cmd(ctsio); 11584 ctl_done((union ctl_io *)ctsio); 11585 break; 11586 case CTL_ACTION_OVERLAP_TAG: 11587 mtx_unlock(&lun->lun_lock); 11588 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11589 ctl_done((union ctl_io *)ctsio); 11590 break; 11591 case CTL_ACTION_ERROR: 11592 default: 11593 mtx_unlock(&lun->lun_lock); 11594 ctl_set_internal_failure(ctsio, 11595 /*sks_valid*/ 0, 11596 /*retry_count*/ 0); 11597 ctl_done((union ctl_io *)ctsio); 11598 break; 11599 } 11600 return (retval); 11601} 11602 11603const struct ctl_cmd_entry * 11604ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11605{ 11606 const struct ctl_cmd_entry *entry; 11607 int service_action; 11608 11609 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11610 if (sa) 11611 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11612 if (entry->flags & CTL_CMD_FLAG_SA5) { 11613 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11614 entry = &((const struct ctl_cmd_entry *) 11615 entry->execute)[service_action]; 11616 } 11617 return (entry); 11618} 11619 11620const struct ctl_cmd_entry * 11621ctl_validate_command(struct ctl_scsiio *ctsio) 11622{ 11623 const struct ctl_cmd_entry *entry; 11624 int i, sa; 11625 uint8_t diff; 11626 11627 entry = ctl_get_cmd_entry(ctsio, &sa); 11628 if (entry->execute == NULL) { 11629 if (sa) 11630 ctl_set_invalid_field(ctsio, 11631 /*sks_valid*/ 1, 11632 /*command*/ 1, 11633 /*field*/ 1, 11634 /*bit_valid*/ 1, 11635 /*bit*/ 4); 11636 else 11637 ctl_set_invalid_opcode(ctsio); 11638 ctl_done((union ctl_io *)ctsio); 11639 return (NULL); 11640 } 11641 KASSERT(entry->length > 0, 11642 ("Not defined length for command 0x%02x/0x%02x", 11643 ctsio->cdb[0], ctsio->cdb[1])); 11644 for (i = 1; i < entry->length; i++) { 11645 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11646 if (diff == 0) 11647 continue; 11648 ctl_set_invalid_field(ctsio, 11649 /*sks_valid*/ 1, 11650 /*command*/ 1, 11651 /*field*/ i, 11652 /*bit_valid*/ 1, 11653 /*bit*/ fls(diff) - 1); 11654 ctl_done((union ctl_io *)ctsio); 11655 return (NULL); 11656 } 11657 return (entry); 11658} 11659 11660static int 11661ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11662{ 11663 11664 switch (lun_type) { 11665 case T_PROCESSOR: 11666 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) && 11667 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11668 return (0); 11669 break; 11670 case T_DIRECT: 11671 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) && 11672 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11673 return (0); 11674 break; 11675 default: 11676 return (0); 11677 } 11678 return (1); 11679} 11680 11681static int 11682ctl_scsiio(struct ctl_scsiio *ctsio) 11683{ 11684 int retval; 11685 const struct ctl_cmd_entry *entry; 11686 11687 retval = CTL_RETVAL_COMPLETE; 11688 11689 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11690 11691 entry = ctl_get_cmd_entry(ctsio, NULL); 11692 11693 /* 11694 * If this I/O has been aborted, just send it straight to 11695 * ctl_done() without executing it. 11696 */ 11697 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11698 ctl_done((union ctl_io *)ctsio); 11699 goto bailout; 11700 } 11701 11702 /* 11703 * All the checks should have been handled by ctl_scsiio_precheck(). 11704 * We should be clear now to just execute the I/O. 11705 */ 11706 retval = entry->execute(ctsio); 11707 11708bailout: 11709 return (retval); 11710} 11711 11712/* 11713 * Since we only implement one target right now, a bus reset simply resets 11714 * our single target. 11715 */ 11716static int 11717ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io) 11718{ 11719 return(ctl_target_reset(ctl_softc, io, CTL_UA_BUS_RESET)); 11720} 11721 11722static int 11723ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 11724 ctl_ua_type ua_type) 11725{ 11726 struct ctl_lun *lun; 11727 int retval; 11728 11729 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11730 union ctl_ha_msg msg_info; 11731 11732 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11733 msg_info.hdr.nexus = io->io_hdr.nexus; 11734 if (ua_type==CTL_UA_TARG_RESET) 11735 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11736 else 11737 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11738 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11739 msg_info.hdr.original_sc = NULL; 11740 msg_info.hdr.serializing_sc = NULL; 11741 if (CTL_HA_STATUS_SUCCESS != ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11742 (void *)&msg_info, sizeof(msg_info), 0)) { 11743 } 11744 } 11745 retval = 0; 11746 11747 mtx_lock(&ctl_softc->ctl_lock); 11748 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) 11749 retval += ctl_lun_reset(lun, io, ua_type); 11750 mtx_unlock(&ctl_softc->ctl_lock); 11751 11752 return (retval); 11753} 11754 11755/* 11756 * The LUN should always be set. The I/O is optional, and is used to 11757 * distinguish between I/Os sent by this initiator, and by other 11758 * initiators. We set unit attention for initiators other than this one. 11759 * SAM-3 is vague on this point. It does say that a unit attention should 11760 * be established for other initiators when a LUN is reset (see section 11761 * 5.7.3), but it doesn't specifically say that the unit attention should 11762 * be established for this particular initiator when a LUN is reset. Here 11763 * is the relevant text, from SAM-3 rev 8: 11764 * 11765 * 5.7.2 When a SCSI initiator port aborts its own tasks 11766 * 11767 * When a SCSI initiator port causes its own task(s) to be aborted, no 11768 * notification that the task(s) have been aborted shall be returned to 11769 * the SCSI initiator port other than the completion response for the 11770 * command or task management function action that caused the task(s) to 11771 * be aborted and notification(s) associated with related effects of the 11772 * action (e.g., a reset unit attention condition). 11773 * 11774 * XXX KDM for now, we're setting unit attention for all initiators. 11775 */ 11776static int 11777ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11778{ 11779 union ctl_io *xio; 11780#if 0 11781 uint32_t initidx; 11782#endif 11783 int i; 11784 11785 mtx_lock(&lun->lun_lock); 11786 /* 11787 * Run through the OOA queue and abort each I/O. 11788 */ 11789#if 0 11790 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 11791#endif 11792 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11793 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11794 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11795 } 11796 11797 /* 11798 * This version sets unit attention for every 11799 */ 11800#if 0 11801 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11802 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11803 if (initidx == i) 11804 continue; 11805 lun->pending_ua[i] |= ua_type; 11806 } 11807#endif 11808 11809 /* 11810 * A reset (any kind, really) clears reservations established with 11811 * RESERVE/RELEASE. It does not clear reservations established 11812 * with PERSISTENT RESERVE OUT, but we don't support that at the 11813 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11814 * reservations made with the RESERVE/RELEASE commands, because 11815 * those commands are obsolete in SPC-3. 11816 */ 11817 lun->flags &= ~CTL_LUN_RESERVED; 11818 11819 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11820#ifdef CTL_WITH_CA 11821 ctl_clear_mask(lun->have_ca, i); 11822#endif 11823 lun->pending_ua[i] |= ua_type; 11824 } 11825 mtx_unlock(&lun->lun_lock); 11826 11827 return (0); 11828} 11829 11830static void 11831ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11832 int other_sc) 11833{ 11834 union ctl_io *xio; 11835 11836 mtx_assert(&lun->lun_lock, MA_OWNED); 11837 11838 /* 11839 * Run through the OOA queue and attempt to find the given I/O. 11840 * The target port, initiator ID, tag type and tag number have to 11841 * match the values that we got from the initiator. If we have an 11842 * untagged command to abort, simply abort the first untagged command 11843 * we come to. We only allow one untagged command at a time of course. 11844 */ 11845 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11846 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11847 11848 if ((targ_port == UINT32_MAX || 11849 targ_port == xio->io_hdr.nexus.targ_port) && 11850 (init_id == UINT32_MAX || 11851 init_id == xio->io_hdr.nexus.initid.id)) { 11852 if (targ_port != xio->io_hdr.nexus.targ_port || 11853 init_id != xio->io_hdr.nexus.initid.id) 11854 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 11855 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11856 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11857 union ctl_ha_msg msg_info; 11858 11859 msg_info.hdr.nexus = xio->io_hdr.nexus; 11860 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 11861 msg_info.task.tag_num = xio->scsiio.tag_num; 11862 msg_info.task.tag_type = xio->scsiio.tag_type; 11863 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11864 msg_info.hdr.original_sc = NULL; 11865 msg_info.hdr.serializing_sc = NULL; 11866 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11867 (void *)&msg_info, sizeof(msg_info), 0); 11868 } 11869 } 11870 } 11871} 11872 11873static int 11874ctl_abort_task_set(union ctl_io *io) 11875{ 11876 struct ctl_softc *softc = control_softc; 11877 struct ctl_lun *lun; 11878 uint32_t targ_lun; 11879 11880 /* 11881 * Look up the LUN. 11882 */ 11883 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11884 mtx_lock(&softc->ctl_lock); 11885 if ((targ_lun < CTL_MAX_LUNS) && (softc->ctl_luns[targ_lun] != NULL)) 11886 lun = softc->ctl_luns[targ_lun]; 11887 else { 11888 mtx_unlock(&softc->ctl_lock); 11889 return (1); 11890 } 11891 11892 mtx_lock(&lun->lun_lock); 11893 mtx_unlock(&softc->ctl_lock); 11894 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 11895 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11896 io->io_hdr.nexus.initid.id, 11897 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11898 } else { /* CTL_TASK_CLEAR_TASK_SET */ 11899 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 11900 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11901 } 11902 mtx_unlock(&lun->lun_lock); 11903 return (0); 11904} 11905 11906static int 11907ctl_i_t_nexus_reset(union ctl_io *io) 11908{ 11909 struct ctl_softc *softc = control_softc; 11910 struct ctl_lun *lun; 11911 uint32_t initidx, residx; 11912 11913 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11914 residx = ctl_get_resindex(&io->io_hdr.nexus); 11915 mtx_lock(&softc->ctl_lock); 11916 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11917 mtx_lock(&lun->lun_lock); 11918 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11919 io->io_hdr.nexus.initid.id, 11920 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11921#ifdef CTL_WITH_CA 11922 ctl_clear_mask(lun->have_ca, initidx); 11923#endif 11924 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 11925 lun->flags &= ~CTL_LUN_RESERVED; 11926 lun->pending_ua[initidx] |= CTL_UA_I_T_NEXUS_LOSS; 11927 mtx_unlock(&lun->lun_lock); 11928 } 11929 mtx_unlock(&softc->ctl_lock); 11930 return (0); 11931} 11932 11933static int 11934ctl_abort_task(union ctl_io *io) 11935{ 11936 union ctl_io *xio; 11937 struct ctl_lun *lun; 11938 struct ctl_softc *ctl_softc; 11939#if 0 11940 struct sbuf sb; 11941 char printbuf[128]; 11942#endif 11943 int found; 11944 uint32_t targ_lun; 11945 11946 ctl_softc = control_softc; 11947 found = 0; 11948 11949 /* 11950 * Look up the LUN. 11951 */ 11952 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11953 mtx_lock(&ctl_softc->ctl_lock); 11954 if ((targ_lun < CTL_MAX_LUNS) 11955 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 11956 lun = ctl_softc->ctl_luns[targ_lun]; 11957 else { 11958 mtx_unlock(&ctl_softc->ctl_lock); 11959 return (1); 11960 } 11961 11962#if 0 11963 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 11964 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 11965#endif 11966 11967 mtx_lock(&lun->lun_lock); 11968 mtx_unlock(&ctl_softc->ctl_lock); 11969 /* 11970 * Run through the OOA queue and attempt to find the given I/O. 11971 * The target port, initiator ID, tag type and tag number have to 11972 * match the values that we got from the initiator. If we have an 11973 * untagged command to abort, simply abort the first untagged command 11974 * we come to. We only allow one untagged command at a time of course. 11975 */ 11976#if 0 11977 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 11978#endif 11979 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11980 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11981#if 0 11982 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 11983 11984 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 11985 lun->lun, xio->scsiio.tag_num, 11986 xio->scsiio.tag_type, 11987 (xio->io_hdr.blocked_links.tqe_prev 11988 == NULL) ? "" : " BLOCKED", 11989 (xio->io_hdr.flags & 11990 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 11991 (xio->io_hdr.flags & 11992 CTL_FLAG_ABORT) ? " ABORT" : "", 11993 (xio->io_hdr.flags & 11994 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 11995 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 11996 sbuf_finish(&sb); 11997 printf("%s\n", sbuf_data(&sb)); 11998#endif 11999 12000 if ((xio->io_hdr.nexus.targ_port == io->io_hdr.nexus.targ_port) 12001 && (xio->io_hdr.nexus.initid.id == 12002 io->io_hdr.nexus.initid.id)) { 12003 /* 12004 * If the abort says that the task is untagged, the 12005 * task in the queue must be untagged. Otherwise, 12006 * we just check to see whether the tag numbers 12007 * match. This is because the QLogic firmware 12008 * doesn't pass back the tag type in an abort 12009 * request. 12010 */ 12011#if 0 12012 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12013 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12014 || (xio->scsiio.tag_num == io->taskio.tag_num)) { 12015#endif 12016 /* 12017 * XXX KDM we've got problems with FC, because it 12018 * doesn't send down a tag type with aborts. So we 12019 * can only really go by the tag number... 12020 * This may cause problems with parallel SCSI. 12021 * Need to figure that out!! 12022 */ 12023 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12024 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12025 found = 1; 12026 if ((io->io_hdr.flags & 12027 CTL_FLAG_FROM_OTHER_SC) == 0 && 12028 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12029 union ctl_ha_msg msg_info; 12030 12031 io->io_hdr.flags |= 12032 CTL_FLAG_SENT_2OTHER_SC; 12033 msg_info.hdr.nexus = io->io_hdr.nexus; 12034 msg_info.task.task_action = 12035 CTL_TASK_ABORT_TASK; 12036 msg_info.task.tag_num = 12037 io->taskio.tag_num; 12038 msg_info.task.tag_type = 12039 io->taskio.tag_type; 12040 msg_info.hdr.msg_type = 12041 CTL_MSG_MANAGE_TASKS; 12042 msg_info.hdr.original_sc = NULL; 12043 msg_info.hdr.serializing_sc = NULL; 12044#if 0 12045 printf("Sent Abort to other side\n"); 12046#endif 12047 if (CTL_HA_STATUS_SUCCESS != 12048 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12049 (void *)&msg_info, 12050 sizeof(msg_info), 0)) { 12051 } 12052 } 12053#if 0 12054 printf("ctl_abort_task: found I/O to abort\n"); 12055#endif 12056 break; 12057 } 12058 } 12059 } 12060 mtx_unlock(&lun->lun_lock); 12061 12062 if (found == 0) { 12063 /* 12064 * This isn't really an error. It's entirely possible for 12065 * the abort and command completion to cross on the wire. 12066 * This is more of an informative/diagnostic error. 12067 */ 12068#if 0 12069 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12070 "%d:%d:%d:%d tag %d type %d\n", 12071 io->io_hdr.nexus.initid.id, 12072 io->io_hdr.nexus.targ_port, 12073 io->io_hdr.nexus.targ_target.id, 12074 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12075 io->taskio.tag_type); 12076#endif 12077 } 12078 return (0); 12079} 12080 12081static void 12082ctl_run_task(union ctl_io *io) 12083{ 12084 struct ctl_softc *ctl_softc = control_softc; 12085 int retval = 1; 12086 const char *task_desc; 12087 12088 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12089 12090 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12091 ("ctl_run_task: Unextected io_type %d\n", 12092 io->io_hdr.io_type)); 12093 12094 task_desc = ctl_scsi_task_string(&io->taskio); 12095 if (task_desc != NULL) { 12096#ifdef NEEDTOPORT 12097 csevent_log(CSC_CTL | CSC_SHELF_SW | 12098 CTL_TASK_REPORT, 12099 csevent_LogType_Trace, 12100 csevent_Severity_Information, 12101 csevent_AlertLevel_Green, 12102 csevent_FRU_Firmware, 12103 csevent_FRU_Unknown, 12104 "CTL: received task: %s",task_desc); 12105#endif 12106 } else { 12107#ifdef NEEDTOPORT 12108 csevent_log(CSC_CTL | CSC_SHELF_SW | 12109 CTL_TASK_REPORT, 12110 csevent_LogType_Trace, 12111 csevent_Severity_Information, 12112 csevent_AlertLevel_Green, 12113 csevent_FRU_Firmware, 12114 csevent_FRU_Unknown, 12115 "CTL: received unknown task " 12116 "type: %d (%#x)", 12117 io->taskio.task_action, 12118 io->taskio.task_action); 12119#endif 12120 } 12121 switch (io->taskio.task_action) { 12122 case CTL_TASK_ABORT_TASK: 12123 retval = ctl_abort_task(io); 12124 break; 12125 case CTL_TASK_ABORT_TASK_SET: 12126 case CTL_TASK_CLEAR_TASK_SET: 12127 retval = ctl_abort_task_set(io); 12128 break; 12129 case CTL_TASK_CLEAR_ACA: 12130 break; 12131 case CTL_TASK_I_T_NEXUS_RESET: 12132 retval = ctl_i_t_nexus_reset(io); 12133 break; 12134 case CTL_TASK_LUN_RESET: { 12135 struct ctl_lun *lun; 12136 uint32_t targ_lun; 12137 12138 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12139 mtx_lock(&ctl_softc->ctl_lock); 12140 if ((targ_lun < CTL_MAX_LUNS) 12141 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12142 lun = ctl_softc->ctl_luns[targ_lun]; 12143 else { 12144 mtx_unlock(&ctl_softc->ctl_lock); 12145 retval = 1; 12146 break; 12147 } 12148 12149 if (!(io->io_hdr.flags & 12150 CTL_FLAG_FROM_OTHER_SC)) { 12151 union ctl_ha_msg msg_info; 12152 12153 io->io_hdr.flags |= 12154 CTL_FLAG_SENT_2OTHER_SC; 12155 msg_info.hdr.msg_type = 12156 CTL_MSG_MANAGE_TASKS; 12157 msg_info.hdr.nexus = io->io_hdr.nexus; 12158 msg_info.task.task_action = 12159 CTL_TASK_LUN_RESET; 12160 msg_info.hdr.original_sc = NULL; 12161 msg_info.hdr.serializing_sc = NULL; 12162 if (CTL_HA_STATUS_SUCCESS != 12163 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12164 (void *)&msg_info, 12165 sizeof(msg_info), 0)) { 12166 } 12167 } 12168 12169 retval = ctl_lun_reset(lun, io, 12170 CTL_UA_LUN_RESET); 12171 mtx_unlock(&ctl_softc->ctl_lock); 12172 break; 12173 } 12174 case CTL_TASK_TARGET_RESET: 12175 retval = ctl_target_reset(ctl_softc, io, CTL_UA_TARG_RESET); 12176 break; 12177 case CTL_TASK_BUS_RESET: 12178 retval = ctl_bus_reset(ctl_softc, io); 12179 break; 12180 case CTL_TASK_PORT_LOGIN: 12181 break; 12182 case CTL_TASK_PORT_LOGOUT: 12183 break; 12184 default: 12185 printf("ctl_run_task: got unknown task management event %d\n", 12186 io->taskio.task_action); 12187 break; 12188 } 12189 if (retval == 0) 12190 io->io_hdr.status = CTL_SUCCESS; 12191 else 12192 io->io_hdr.status = CTL_ERROR; 12193 ctl_done(io); 12194} 12195 12196/* 12197 * For HA operation. Handle commands that come in from the other 12198 * controller. 12199 */ 12200static void 12201ctl_handle_isc(union ctl_io *io) 12202{ 12203 int free_io; 12204 struct ctl_lun *lun; 12205 struct ctl_softc *ctl_softc; 12206 uint32_t targ_lun; 12207 12208 ctl_softc = control_softc; 12209 12210 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12211 lun = ctl_softc->ctl_luns[targ_lun]; 12212 12213 switch (io->io_hdr.msg_type) { 12214 case CTL_MSG_SERIALIZE: 12215 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12216 break; 12217 case CTL_MSG_R2R: { 12218 const struct ctl_cmd_entry *entry; 12219 12220 /* 12221 * This is only used in SER_ONLY mode. 12222 */ 12223 free_io = 0; 12224 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12225 mtx_lock(&lun->lun_lock); 12226 if (ctl_scsiio_lun_check(ctl_softc, lun, 12227 entry, (struct ctl_scsiio *)io) != 0) { 12228 mtx_unlock(&lun->lun_lock); 12229 ctl_done(io); 12230 break; 12231 } 12232 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12233 mtx_unlock(&lun->lun_lock); 12234 ctl_enqueue_rtr(io); 12235 break; 12236 } 12237 case CTL_MSG_FINISH_IO: 12238 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 12239 free_io = 0; 12240 ctl_done(io); 12241 } else { 12242 free_io = 1; 12243 mtx_lock(&lun->lun_lock); 12244 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12245 ooa_links); 12246 ctl_check_blocked(lun); 12247 mtx_unlock(&lun->lun_lock); 12248 } 12249 break; 12250 case CTL_MSG_PERS_ACTION: 12251 ctl_hndl_per_res_out_on_other_sc( 12252 (union ctl_ha_msg *)&io->presio.pr_msg); 12253 free_io = 1; 12254 break; 12255 case CTL_MSG_BAD_JUJU: 12256 free_io = 0; 12257 ctl_done(io); 12258 break; 12259 case CTL_MSG_DATAMOVE: 12260 /* Only used in XFER mode */ 12261 free_io = 0; 12262 ctl_datamove_remote(io); 12263 break; 12264 case CTL_MSG_DATAMOVE_DONE: 12265 /* Only used in XFER mode */ 12266 free_io = 0; 12267 io->scsiio.be_move_done(io); 12268 break; 12269 default: 12270 free_io = 1; 12271 printf("%s: Invalid message type %d\n", 12272 __func__, io->io_hdr.msg_type); 12273 break; 12274 } 12275 if (free_io) 12276 ctl_free_io(io); 12277 12278} 12279 12280 12281/* 12282 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12283 * there is no match. 12284 */ 12285static ctl_lun_error_pattern 12286ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12287{ 12288 const struct ctl_cmd_entry *entry; 12289 ctl_lun_error_pattern filtered_pattern, pattern; 12290 12291 pattern = desc->error_pattern; 12292 12293 /* 12294 * XXX KDM we need more data passed into this function to match a 12295 * custom pattern, and we actually need to implement custom pattern 12296 * matching. 12297 */ 12298 if (pattern & CTL_LUN_PAT_CMD) 12299 return (CTL_LUN_PAT_CMD); 12300 12301 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12302 return (CTL_LUN_PAT_ANY); 12303 12304 entry = ctl_get_cmd_entry(ctsio, NULL); 12305 12306 filtered_pattern = entry->pattern & pattern; 12307 12308 /* 12309 * If the user requested specific flags in the pattern (e.g. 12310 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12311 * flags. 12312 * 12313 * If the user did not specify any flags, it doesn't matter whether 12314 * or not the command supports the flags. 12315 */ 12316 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12317 (pattern & ~CTL_LUN_PAT_MASK)) 12318 return (CTL_LUN_PAT_NONE); 12319 12320 /* 12321 * If the user asked for a range check, see if the requested LBA 12322 * range overlaps with this command's LBA range. 12323 */ 12324 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12325 uint64_t lba1; 12326 uint64_t len1; 12327 ctl_action action; 12328 int retval; 12329 12330 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12331 if (retval != 0) 12332 return (CTL_LUN_PAT_NONE); 12333 12334 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12335 desc->lba_range.len); 12336 /* 12337 * A "pass" means that the LBA ranges don't overlap, so 12338 * this doesn't match the user's range criteria. 12339 */ 12340 if (action == CTL_ACTION_PASS) 12341 return (CTL_LUN_PAT_NONE); 12342 } 12343 12344 return (filtered_pattern); 12345} 12346 12347static void 12348ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12349{ 12350 struct ctl_error_desc *desc, *desc2; 12351 12352 mtx_assert(&lun->lun_lock, MA_OWNED); 12353 12354 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12355 ctl_lun_error_pattern pattern; 12356 /* 12357 * Check to see whether this particular command matches 12358 * the pattern in the descriptor. 12359 */ 12360 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12361 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12362 continue; 12363 12364 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12365 case CTL_LUN_INJ_ABORTED: 12366 ctl_set_aborted(&io->scsiio); 12367 break; 12368 case CTL_LUN_INJ_MEDIUM_ERR: 12369 ctl_set_medium_error(&io->scsiio); 12370 break; 12371 case CTL_LUN_INJ_UA: 12372 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12373 * OCCURRED */ 12374 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12375 break; 12376 case CTL_LUN_INJ_CUSTOM: 12377 /* 12378 * We're assuming the user knows what he is doing. 12379 * Just copy the sense information without doing 12380 * checks. 12381 */ 12382 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12383 ctl_min(sizeof(desc->custom_sense), 12384 sizeof(io->scsiio.sense_data))); 12385 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12386 io->scsiio.sense_len = SSD_FULL_SIZE; 12387 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12388 break; 12389 case CTL_LUN_INJ_NONE: 12390 default: 12391 /* 12392 * If this is an error injection type we don't know 12393 * about, clear the continuous flag (if it is set) 12394 * so it will get deleted below. 12395 */ 12396 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12397 break; 12398 } 12399 /* 12400 * By default, each error injection action is a one-shot 12401 */ 12402 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12403 continue; 12404 12405 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12406 12407 free(desc, M_CTL); 12408 } 12409} 12410 12411#ifdef CTL_IO_DELAY 12412static void 12413ctl_datamove_timer_wakeup(void *arg) 12414{ 12415 union ctl_io *io; 12416 12417 io = (union ctl_io *)arg; 12418 12419 ctl_datamove(io); 12420} 12421#endif /* CTL_IO_DELAY */ 12422 12423void 12424ctl_datamove(union ctl_io *io) 12425{ 12426 void (*fe_datamove)(union ctl_io *io); 12427 12428 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12429 12430 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12431 12432#ifdef CTL_TIME_IO 12433 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12434 char str[256]; 12435 char path_str[64]; 12436 struct sbuf sb; 12437 12438 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12439 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12440 12441 sbuf_cat(&sb, path_str); 12442 switch (io->io_hdr.io_type) { 12443 case CTL_IO_SCSI: 12444 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12445 sbuf_printf(&sb, "\n"); 12446 sbuf_cat(&sb, path_str); 12447 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12448 io->scsiio.tag_num, io->scsiio.tag_type); 12449 break; 12450 case CTL_IO_TASK: 12451 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12452 "Tag Type: %d\n", io->taskio.task_action, 12453 io->taskio.tag_num, io->taskio.tag_type); 12454 break; 12455 default: 12456 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12457 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12458 break; 12459 } 12460 sbuf_cat(&sb, path_str); 12461 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12462 (intmax_t)time_uptime - io->io_hdr.start_time); 12463 sbuf_finish(&sb); 12464 printf("%s", sbuf_data(&sb)); 12465 } 12466#endif /* CTL_TIME_IO */ 12467 12468#ifdef CTL_IO_DELAY 12469 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12470 struct ctl_lun *lun; 12471 12472 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12473 12474 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12475 } else { 12476 struct ctl_lun *lun; 12477 12478 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12479 if ((lun != NULL) 12480 && (lun->delay_info.datamove_delay > 0)) { 12481 struct callout *callout; 12482 12483 callout = (struct callout *)&io->io_hdr.timer_bytes; 12484 callout_init(callout, /*mpsafe*/ 1); 12485 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12486 callout_reset(callout, 12487 lun->delay_info.datamove_delay * hz, 12488 ctl_datamove_timer_wakeup, io); 12489 if (lun->delay_info.datamove_type == 12490 CTL_DELAY_TYPE_ONESHOT) 12491 lun->delay_info.datamove_delay = 0; 12492 return; 12493 } 12494 } 12495#endif 12496 12497 /* 12498 * This command has been aborted. Set the port status, so we fail 12499 * the data move. 12500 */ 12501 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12502 printf("ctl_datamove: tag 0x%04x on (%ju:%d:%ju:%d) aborted\n", 12503 io->scsiio.tag_num,(uintmax_t)io->io_hdr.nexus.initid.id, 12504 io->io_hdr.nexus.targ_port, 12505 (uintmax_t)io->io_hdr.nexus.targ_target.id, 12506 io->io_hdr.nexus.targ_lun); 12507 io->io_hdr.port_status = 31337; 12508 /* 12509 * Note that the backend, in this case, will get the 12510 * callback in its context. In other cases it may get 12511 * called in the frontend's interrupt thread context. 12512 */ 12513 io->scsiio.be_move_done(io); 12514 return; 12515 } 12516 12517 /* Don't confuse frontend with zero length data move. */ 12518 if (io->scsiio.kern_data_len == 0) { 12519 io->scsiio.be_move_done(io); 12520 return; 12521 } 12522 12523 /* 12524 * If we're in XFER mode and this I/O is from the other shelf 12525 * controller, we need to send the DMA to the other side to 12526 * actually transfer the data to/from the host. In serialize only 12527 * mode the transfer happens below CTL and ctl_datamove() is only 12528 * called on the machine that originally received the I/O. 12529 */ 12530 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12531 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12532 union ctl_ha_msg msg; 12533 uint32_t sg_entries_sent; 12534 int do_sg_copy; 12535 int i; 12536 12537 memset(&msg, 0, sizeof(msg)); 12538 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12539 msg.hdr.original_sc = io->io_hdr.original_sc; 12540 msg.hdr.serializing_sc = io; 12541 msg.hdr.nexus = io->io_hdr.nexus; 12542 msg.dt.flags = io->io_hdr.flags; 12543 /* 12544 * We convert everything into a S/G list here. We can't 12545 * pass by reference, only by value between controllers. 12546 * So we can't pass a pointer to the S/G list, only as many 12547 * S/G entries as we can fit in here. If it's possible for 12548 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12549 * then we need to break this up into multiple transfers. 12550 */ 12551 if (io->scsiio.kern_sg_entries == 0) { 12552 msg.dt.kern_sg_entries = 1; 12553 /* 12554 * If this is in cached memory, flush the cache 12555 * before we send the DMA request to the other 12556 * controller. We want to do this in either the 12557 * read or the write case. The read case is 12558 * straightforward. In the write case, we want to 12559 * make sure nothing is in the local cache that 12560 * could overwrite the DMAed data. 12561 */ 12562 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12563 /* 12564 * XXX KDM use bus_dmamap_sync() here. 12565 */ 12566 } 12567 12568 /* 12569 * Convert to a physical address if this is a 12570 * virtual address. 12571 */ 12572 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12573 msg.dt.sg_list[0].addr = 12574 io->scsiio.kern_data_ptr; 12575 } else { 12576 /* 12577 * XXX KDM use busdma here! 12578 */ 12579#if 0 12580 msg.dt.sg_list[0].addr = (void *) 12581 vtophys(io->scsiio.kern_data_ptr); 12582#endif 12583 } 12584 12585 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12586 do_sg_copy = 0; 12587 } else { 12588 struct ctl_sg_entry *sgl; 12589 12590 do_sg_copy = 1; 12591 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12592 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 12593 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12594 /* 12595 * XXX KDM use bus_dmamap_sync() here. 12596 */ 12597 } 12598 } 12599 12600 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12601 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12602 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12603 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12604 msg.dt.sg_sequence = 0; 12605 12606 /* 12607 * Loop until we've sent all of the S/G entries. On the 12608 * other end, we'll recompose these S/G entries into one 12609 * contiguous list before passing it to the 12610 */ 12611 for (sg_entries_sent = 0; sg_entries_sent < 12612 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12613 msg.dt.cur_sg_entries = ctl_min((sizeof(msg.dt.sg_list)/ 12614 sizeof(msg.dt.sg_list[0])), 12615 msg.dt.kern_sg_entries - sg_entries_sent); 12616 12617 if (do_sg_copy != 0) { 12618 struct ctl_sg_entry *sgl; 12619 int j; 12620 12621 sgl = (struct ctl_sg_entry *) 12622 io->scsiio.kern_data_ptr; 12623 /* 12624 * If this is in cached memory, flush the cache 12625 * before we send the DMA request to the other 12626 * controller. We want to do this in either 12627 * the * read or the write case. The read 12628 * case is straightforward. In the write 12629 * case, we want to make sure nothing is 12630 * in the local cache that could overwrite 12631 * the DMAed data. 12632 */ 12633 12634 for (i = sg_entries_sent, j = 0; 12635 i < msg.dt.cur_sg_entries; i++, j++) { 12636 if ((io->io_hdr.flags & 12637 CTL_FLAG_NO_DATASYNC) == 0) { 12638 /* 12639 * XXX KDM use bus_dmamap_sync() 12640 */ 12641 } 12642 if ((io->io_hdr.flags & 12643 CTL_FLAG_BUS_ADDR) == 0) { 12644 /* 12645 * XXX KDM use busdma. 12646 */ 12647#if 0 12648 msg.dt.sg_list[j].addr =(void *) 12649 vtophys(sgl[i].addr); 12650#endif 12651 } else { 12652 msg.dt.sg_list[j].addr = 12653 sgl[i].addr; 12654 } 12655 msg.dt.sg_list[j].len = sgl[i].len; 12656 } 12657 } 12658 12659 sg_entries_sent += msg.dt.cur_sg_entries; 12660 if (sg_entries_sent >= msg.dt.kern_sg_entries) 12661 msg.dt.sg_last = 1; 12662 else 12663 msg.dt.sg_last = 0; 12664 12665 /* 12666 * XXX KDM drop and reacquire the lock here? 12667 */ 12668 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12669 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 12670 /* 12671 * XXX do something here. 12672 */ 12673 } 12674 12675 msg.dt.sent_sg_entries = sg_entries_sent; 12676 } 12677 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12678 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) 12679 ctl_failover_io(io, /*have_lock*/ 0); 12680 12681 } else { 12682 12683 /* 12684 * Lookup the fe_datamove() function for this particular 12685 * front end. 12686 */ 12687 fe_datamove = 12688 control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12689 12690 fe_datamove(io); 12691 } 12692} 12693 12694static void 12695ctl_send_datamove_done(union ctl_io *io, int have_lock) 12696{ 12697 union ctl_ha_msg msg; 12698 int isc_status; 12699 12700 memset(&msg, 0, sizeof(msg)); 12701 12702 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12703 msg.hdr.original_sc = io; 12704 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12705 msg.hdr.nexus = io->io_hdr.nexus; 12706 msg.hdr.status = io->io_hdr.status; 12707 msg.scsi.tag_num = io->scsiio.tag_num; 12708 msg.scsi.tag_type = io->scsiio.tag_type; 12709 msg.scsi.scsi_status = io->scsiio.scsi_status; 12710 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12711 sizeof(io->scsiio.sense_data)); 12712 msg.scsi.sense_len = io->scsiio.sense_len; 12713 msg.scsi.sense_residual = io->scsiio.sense_residual; 12714 msg.scsi.fetd_status = io->io_hdr.port_status; 12715 msg.scsi.residual = io->scsiio.residual; 12716 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12717 12718 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12719 ctl_failover_io(io, /*have_lock*/ have_lock); 12720 return; 12721 } 12722 12723 isc_status = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0); 12724 if (isc_status > CTL_HA_STATUS_SUCCESS) { 12725 /* XXX do something if this fails */ 12726 } 12727 12728} 12729 12730/* 12731 * The DMA to the remote side is done, now we need to tell the other side 12732 * we're done so it can continue with its data movement. 12733 */ 12734static void 12735ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12736{ 12737 union ctl_io *io; 12738 12739 io = rq->context; 12740 12741 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12742 printf("%s: ISC DMA write failed with error %d", __func__, 12743 rq->ret); 12744 ctl_set_internal_failure(&io->scsiio, 12745 /*sks_valid*/ 1, 12746 /*retry_count*/ rq->ret); 12747 } 12748 12749 ctl_dt_req_free(rq); 12750 12751 /* 12752 * In this case, we had to malloc the memory locally. Free it. 12753 */ 12754 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12755 int i; 12756 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12757 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12758 } 12759 /* 12760 * The data is in local and remote memory, so now we need to send 12761 * status (good or back) back to the other side. 12762 */ 12763 ctl_send_datamove_done(io, /*have_lock*/ 0); 12764} 12765 12766/* 12767 * We've moved the data from the host/controller into local memory. Now we 12768 * need to push it over to the remote controller's memory. 12769 */ 12770static int 12771ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12772{ 12773 int retval; 12774 12775 retval = 0; 12776 12777 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12778 ctl_datamove_remote_write_cb); 12779 12780 return (retval); 12781} 12782 12783static void 12784ctl_datamove_remote_write(union ctl_io *io) 12785{ 12786 int retval; 12787 void (*fe_datamove)(union ctl_io *io); 12788 12789 /* 12790 * - Get the data from the host/HBA into local memory. 12791 * - DMA memory from the local controller to the remote controller. 12792 * - Send status back to the remote controller. 12793 */ 12794 12795 retval = ctl_datamove_remote_sgl_setup(io); 12796 if (retval != 0) 12797 return; 12798 12799 /* Switch the pointer over so the FETD knows what to do */ 12800 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12801 12802 /* 12803 * Use a custom move done callback, since we need to send completion 12804 * back to the other controller, not to the backend on this side. 12805 */ 12806 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12807 12808 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12809 12810 fe_datamove(io); 12811 12812 return; 12813 12814} 12815 12816static int 12817ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12818{ 12819#if 0 12820 char str[256]; 12821 char path_str[64]; 12822 struct sbuf sb; 12823#endif 12824 12825 /* 12826 * In this case, we had to malloc the memory locally. Free it. 12827 */ 12828 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12829 int i; 12830 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12831 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12832 } 12833 12834#if 0 12835 scsi_path_string(io, path_str, sizeof(path_str)); 12836 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12837 sbuf_cat(&sb, path_str); 12838 scsi_command_string(&io->scsiio, NULL, &sb); 12839 sbuf_printf(&sb, "\n"); 12840 sbuf_cat(&sb, path_str); 12841 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12842 io->scsiio.tag_num, io->scsiio.tag_type); 12843 sbuf_cat(&sb, path_str); 12844 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12845 io->io_hdr.flags, io->io_hdr.status); 12846 sbuf_finish(&sb); 12847 printk("%s", sbuf_data(&sb)); 12848#endif 12849 12850 12851 /* 12852 * The read is done, now we need to send status (good or bad) back 12853 * to the other side. 12854 */ 12855 ctl_send_datamove_done(io, /*have_lock*/ 0); 12856 12857 return (0); 12858} 12859 12860static void 12861ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12862{ 12863 union ctl_io *io; 12864 void (*fe_datamove)(union ctl_io *io); 12865 12866 io = rq->context; 12867 12868 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12869 printf("%s: ISC DMA read failed with error %d", __func__, 12870 rq->ret); 12871 ctl_set_internal_failure(&io->scsiio, 12872 /*sks_valid*/ 1, 12873 /*retry_count*/ rq->ret); 12874 } 12875 12876 ctl_dt_req_free(rq); 12877 12878 /* Switch the pointer over so the FETD knows what to do */ 12879 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12880 12881 /* 12882 * Use a custom move done callback, since we need to send completion 12883 * back to the other controller, not to the backend on this side. 12884 */ 12885 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12886 12887 /* XXX KDM add checks like the ones in ctl_datamove? */ 12888 12889 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12890 12891 fe_datamove(io); 12892} 12893 12894static int 12895ctl_datamove_remote_sgl_setup(union ctl_io *io) 12896{ 12897 struct ctl_sg_entry *local_sglist, *remote_sglist; 12898 struct ctl_sg_entry *local_dma_sglist, *remote_dma_sglist; 12899 struct ctl_softc *softc; 12900 int retval; 12901 int i; 12902 12903 retval = 0; 12904 softc = control_softc; 12905 12906 local_sglist = io->io_hdr.local_sglist; 12907 local_dma_sglist = io->io_hdr.local_dma_sglist; 12908 remote_sglist = io->io_hdr.remote_sglist; 12909 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 12910 12911 if (io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) { 12912 for (i = 0; i < io->scsiio.kern_sg_entries; i++) { 12913 local_sglist[i].len = remote_sglist[i].len; 12914 12915 /* 12916 * XXX Detect the situation where the RS-level I/O 12917 * redirector on the other side has already read the 12918 * data off of the AOR RS on this side, and 12919 * transferred it to remote (mirror) memory on the 12920 * other side. Since we already have the data in 12921 * memory here, we just need to use it. 12922 * 12923 * XXX KDM this can probably be removed once we 12924 * get the cache device code in and take the 12925 * current AOR implementation out. 12926 */ 12927#ifdef NEEDTOPORT 12928 if ((remote_sglist[i].addr >= 12929 (void *)vtophys(softc->mirr->addr)) 12930 && (remote_sglist[i].addr < 12931 ((void *)vtophys(softc->mirr->addr) + 12932 CacheMirrorOffset))) { 12933 local_sglist[i].addr = remote_sglist[i].addr - 12934 CacheMirrorOffset; 12935 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 12936 CTL_FLAG_DATA_IN) 12937 io->io_hdr.flags |= CTL_FLAG_REDIR_DONE; 12938 } else { 12939 local_sglist[i].addr = remote_sglist[i].addr + 12940 CacheMirrorOffset; 12941 } 12942#endif 12943#if 0 12944 printf("%s: local %p, remote %p, len %d\n", 12945 __func__, local_sglist[i].addr, 12946 remote_sglist[i].addr, local_sglist[i].len); 12947#endif 12948 } 12949 } else { 12950 uint32_t len_to_go; 12951 12952 /* 12953 * In this case, we don't have automatically allocated 12954 * memory for this I/O on this controller. This typically 12955 * happens with internal CTL I/O -- e.g. inquiry, mode 12956 * sense, etc. Anything coming from RAIDCore will have 12957 * a mirror area available. 12958 */ 12959 len_to_go = io->scsiio.kern_data_len; 12960 12961 /* 12962 * Clear the no datasync flag, we have to use malloced 12963 * buffers. 12964 */ 12965 io->io_hdr.flags &= ~CTL_FLAG_NO_DATASYNC; 12966 12967 /* 12968 * The difficult thing here is that the size of the various 12969 * S/G segments may be different than the size from the 12970 * remote controller. That'll make it harder when DMAing 12971 * the data back to the other side. 12972 */ 12973 for (i = 0; (i < sizeof(io->io_hdr.remote_sglist) / 12974 sizeof(io->io_hdr.remote_sglist[0])) && 12975 (len_to_go > 0); i++) { 12976 local_sglist[i].len = ctl_min(len_to_go, 131072); 12977 CTL_SIZE_8B(local_dma_sglist[i].len, 12978 local_sglist[i].len); 12979 local_sglist[i].addr = 12980 malloc(local_dma_sglist[i].len, M_CTL,M_WAITOK); 12981 12982 local_dma_sglist[i].addr = local_sglist[i].addr; 12983 12984 if (local_sglist[i].addr == NULL) { 12985 int j; 12986 12987 printf("malloc failed for %zd bytes!", 12988 local_dma_sglist[i].len); 12989 for (j = 0; j < i; j++) { 12990 free(local_sglist[j].addr, M_CTL); 12991 } 12992 ctl_set_internal_failure(&io->scsiio, 12993 /*sks_valid*/ 1, 12994 /*retry_count*/ 4857); 12995 retval = 1; 12996 goto bailout_error; 12997 12998 } 12999 /* XXX KDM do we need a sync here? */ 13000 13001 len_to_go -= local_sglist[i].len; 13002 } 13003 /* 13004 * Reset the number of S/G entries accordingly. The 13005 * original number of S/G entries is available in 13006 * rem_sg_entries. 13007 */ 13008 io->scsiio.kern_sg_entries = i; 13009 13010#if 0 13011 printf("%s: kern_sg_entries = %d\n", __func__, 13012 io->scsiio.kern_sg_entries); 13013 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13014 printf("%s: sg[%d] = %p, %d (DMA: %d)\n", __func__, i, 13015 local_sglist[i].addr, local_sglist[i].len, 13016 local_dma_sglist[i].len); 13017#endif 13018 } 13019 13020 13021 return (retval); 13022 13023bailout_error: 13024 13025 ctl_send_datamove_done(io, /*have_lock*/ 0); 13026 13027 return (retval); 13028} 13029 13030static int 13031ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 13032 ctl_ha_dt_cb callback) 13033{ 13034 struct ctl_ha_dt_req *rq; 13035 struct ctl_sg_entry *remote_sglist, *local_sglist; 13036 struct ctl_sg_entry *remote_dma_sglist, *local_dma_sglist; 13037 uint32_t local_used, remote_used, total_used; 13038 int retval; 13039 int i, j; 13040 13041 retval = 0; 13042 13043 rq = ctl_dt_req_alloc(); 13044 13045 /* 13046 * If we failed to allocate the request, and if the DMA didn't fail 13047 * anyway, set busy status. This is just a resource allocation 13048 * failure. 13049 */ 13050 if ((rq == NULL) 13051 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)) 13052 ctl_set_busy(&io->scsiio); 13053 13054 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 13055 13056 if (rq != NULL) 13057 ctl_dt_req_free(rq); 13058 13059 /* 13060 * The data move failed. We need to return status back 13061 * to the other controller. No point in trying to DMA 13062 * data to the remote controller. 13063 */ 13064 13065 ctl_send_datamove_done(io, /*have_lock*/ 0); 13066 13067 retval = 1; 13068 13069 goto bailout; 13070 } 13071 13072 local_sglist = io->io_hdr.local_sglist; 13073 local_dma_sglist = io->io_hdr.local_dma_sglist; 13074 remote_sglist = io->io_hdr.remote_sglist; 13075 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13076 local_used = 0; 13077 remote_used = 0; 13078 total_used = 0; 13079 13080 if (io->io_hdr.flags & CTL_FLAG_REDIR_DONE) { 13081 rq->ret = CTL_HA_STATUS_SUCCESS; 13082 rq->context = io; 13083 callback(rq); 13084 goto bailout; 13085 } 13086 13087 /* 13088 * Pull/push the data over the wire from/to the other controller. 13089 * This takes into account the possibility that the local and 13090 * remote sglists may not be identical in terms of the size of 13091 * the elements and the number of elements. 13092 * 13093 * One fundamental assumption here is that the length allocated for 13094 * both the local and remote sglists is identical. Otherwise, we've 13095 * essentially got a coding error of some sort. 13096 */ 13097 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 13098 int isc_ret; 13099 uint32_t cur_len, dma_length; 13100 uint8_t *tmp_ptr; 13101 13102 rq->id = CTL_HA_DATA_CTL; 13103 rq->command = command; 13104 rq->context = io; 13105 13106 /* 13107 * Both pointers should be aligned. But it is possible 13108 * that the allocation length is not. They should both 13109 * also have enough slack left over at the end, though, 13110 * to round up to the next 8 byte boundary. 13111 */ 13112 cur_len = ctl_min(local_sglist[i].len - local_used, 13113 remote_sglist[j].len - remote_used); 13114 13115 /* 13116 * In this case, we have a size issue and need to decrease 13117 * the size, except in the case where we actually have less 13118 * than 8 bytes left. In that case, we need to increase 13119 * the DMA length to get the last bit. 13120 */ 13121 if ((cur_len & 0x7) != 0) { 13122 if (cur_len > 0x7) { 13123 cur_len = cur_len - (cur_len & 0x7); 13124 dma_length = cur_len; 13125 } else { 13126 CTL_SIZE_8B(dma_length, cur_len); 13127 } 13128 13129 } else 13130 dma_length = cur_len; 13131 13132 /* 13133 * If we had to allocate memory for this I/O, instead of using 13134 * the non-cached mirror memory, we'll need to flush the cache 13135 * before trying to DMA to the other controller. 13136 * 13137 * We could end up doing this multiple times for the same 13138 * segment if we have a larger local segment than remote 13139 * segment. That shouldn't be an issue. 13140 */ 13141 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 13142 /* 13143 * XXX KDM use bus_dmamap_sync() here. 13144 */ 13145 } 13146 13147 rq->size = dma_length; 13148 13149 tmp_ptr = (uint8_t *)local_sglist[i].addr; 13150 tmp_ptr += local_used; 13151 13152 /* Use physical addresses when talking to ISC hardware */ 13153 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 13154 /* XXX KDM use busdma */ 13155#if 0 13156 rq->local = vtophys(tmp_ptr); 13157#endif 13158 } else 13159 rq->local = tmp_ptr; 13160 13161 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 13162 tmp_ptr += remote_used; 13163 rq->remote = tmp_ptr; 13164 13165 rq->callback = NULL; 13166 13167 local_used += cur_len; 13168 if (local_used >= local_sglist[i].len) { 13169 i++; 13170 local_used = 0; 13171 } 13172 13173 remote_used += cur_len; 13174 if (remote_used >= remote_sglist[j].len) { 13175 j++; 13176 remote_used = 0; 13177 } 13178 total_used += cur_len; 13179 13180 if (total_used >= io->scsiio.kern_data_len) 13181 rq->callback = callback; 13182 13183 if ((rq->size & 0x7) != 0) { 13184 printf("%s: warning: size %d is not on 8b boundary\n", 13185 __func__, rq->size); 13186 } 13187 if (((uintptr_t)rq->local & 0x7) != 0) { 13188 printf("%s: warning: local %p not on 8b boundary\n", 13189 __func__, rq->local); 13190 } 13191 if (((uintptr_t)rq->remote & 0x7) != 0) { 13192 printf("%s: warning: remote %p not on 8b boundary\n", 13193 __func__, rq->local); 13194 } 13195#if 0 13196 printf("%s: %s: local %#x remote %#x size %d\n", __func__, 13197 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13198 rq->local, rq->remote, rq->size); 13199#endif 13200 13201 isc_ret = ctl_dt_single(rq); 13202 if (isc_ret == CTL_HA_STATUS_WAIT) 13203 continue; 13204 13205 if (isc_ret == CTL_HA_STATUS_DISCONNECT) { 13206 rq->ret = CTL_HA_STATUS_SUCCESS; 13207 } else { 13208 rq->ret = isc_ret; 13209 } 13210 callback(rq); 13211 goto bailout; 13212 } 13213 13214bailout: 13215 return (retval); 13216 13217} 13218 13219static void 13220ctl_datamove_remote_read(union ctl_io *io) 13221{ 13222 int retval; 13223 int i; 13224 13225 /* 13226 * This will send an error to the other controller in the case of a 13227 * failure. 13228 */ 13229 retval = ctl_datamove_remote_sgl_setup(io); 13230 if (retval != 0) 13231 return; 13232 13233 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13234 ctl_datamove_remote_read_cb); 13235 if ((retval != 0) 13236 && ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0)) { 13237 /* 13238 * Make sure we free memory if there was an error.. The 13239 * ctl_datamove_remote_xfer() function will send the 13240 * datamove done message, or call the callback with an 13241 * error if there is a problem. 13242 */ 13243 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13244 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13245 } 13246 13247 return; 13248} 13249 13250/* 13251 * Process a datamove request from the other controller. This is used for 13252 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13253 * first. Once that is complete, the data gets DMAed into the remote 13254 * controller's memory. For reads, we DMA from the remote controller's 13255 * memory into our memory first, and then move it out to the FETD. 13256 */ 13257static void 13258ctl_datamove_remote(union ctl_io *io) 13259{ 13260 struct ctl_softc *softc; 13261 13262 softc = control_softc; 13263 13264 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 13265 13266 /* 13267 * Note that we look for an aborted I/O here, but don't do some of 13268 * the other checks that ctl_datamove() normally does. 13269 * We don't need to run the datamove delay code, since that should 13270 * have been done if need be on the other controller. 13271 */ 13272 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13273 printf("%s: tag 0x%04x on (%d:%d:%d:%d) aborted\n", __func__, 13274 io->scsiio.tag_num, io->io_hdr.nexus.initid.id, 13275 io->io_hdr.nexus.targ_port, 13276 io->io_hdr.nexus.targ_target.id, 13277 io->io_hdr.nexus.targ_lun); 13278 io->io_hdr.port_status = 31338; 13279 ctl_send_datamove_done(io, /*have_lock*/ 0); 13280 return; 13281 } 13282 13283 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) { 13284 ctl_datamove_remote_write(io); 13285 } else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN){ 13286 ctl_datamove_remote_read(io); 13287 } else { 13288 union ctl_ha_msg msg; 13289 struct scsi_sense_data *sense; 13290 uint8_t sks[3]; 13291 int retry_count; 13292 13293 memset(&msg, 0, sizeof(msg)); 13294 13295 msg.hdr.msg_type = CTL_MSG_BAD_JUJU; 13296 msg.hdr.status = CTL_SCSI_ERROR; 13297 msg.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 13298 13299 retry_count = 4243; 13300 13301 sense = &msg.scsi.sense_data; 13302 sks[0] = SSD_SCS_VALID; 13303 sks[1] = (retry_count >> 8) & 0xff; 13304 sks[2] = retry_count & 0xff; 13305 13306 /* "Internal target failure" */ 13307 scsi_set_sense_data(sense, 13308 /*sense_format*/ SSD_TYPE_NONE, 13309 /*current_error*/ 1, 13310 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 13311 /*asc*/ 0x44, 13312 /*ascq*/ 0x00, 13313 /*type*/ SSD_ELEM_SKS, 13314 /*size*/ sizeof(sks), 13315 /*data*/ sks, 13316 SSD_ELEM_NONE); 13317 13318 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13319 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13320 ctl_failover_io(io, /*have_lock*/ 1); 13321 return; 13322 } 13323 13324 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0) > 13325 CTL_HA_STATUS_SUCCESS) { 13326 /* XXX KDM what to do if this fails? */ 13327 } 13328 return; 13329 } 13330 13331} 13332 13333static int 13334ctl_process_done(union ctl_io *io) 13335{ 13336 struct ctl_lun *lun; 13337 struct ctl_softc *ctl_softc = control_softc; 13338 void (*fe_done)(union ctl_io *io); 13339 uint32_t targ_port = ctl_port_idx(io->io_hdr.nexus.targ_port); 13340 13341 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13342 13343 fe_done = 13344 control_softc->ctl_ports[targ_port]->fe_done; 13345 13346#ifdef CTL_TIME_IO 13347 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13348 char str[256]; 13349 char path_str[64]; 13350 struct sbuf sb; 13351 13352 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13353 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13354 13355 sbuf_cat(&sb, path_str); 13356 switch (io->io_hdr.io_type) { 13357 case CTL_IO_SCSI: 13358 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13359 sbuf_printf(&sb, "\n"); 13360 sbuf_cat(&sb, path_str); 13361 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13362 io->scsiio.tag_num, io->scsiio.tag_type); 13363 break; 13364 case CTL_IO_TASK: 13365 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13366 "Tag Type: %d\n", io->taskio.task_action, 13367 io->taskio.tag_num, io->taskio.tag_type); 13368 break; 13369 default: 13370 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13371 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13372 break; 13373 } 13374 sbuf_cat(&sb, path_str); 13375 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13376 (intmax_t)time_uptime - io->io_hdr.start_time); 13377 sbuf_finish(&sb); 13378 printf("%s", sbuf_data(&sb)); 13379 } 13380#endif /* CTL_TIME_IO */ 13381 13382 switch (io->io_hdr.io_type) { 13383 case CTL_IO_SCSI: 13384 break; 13385 case CTL_IO_TASK: 13386 if (bootverbose || (ctl_debug & CTL_DEBUG_INFO)) 13387 ctl_io_error_print(io, NULL); 13388 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 13389 ctl_free_io(io); 13390 else 13391 fe_done(io); 13392 return (CTL_RETVAL_COMPLETE); 13393 default: 13394 panic("ctl_process_done: invalid io type %d\n", 13395 io->io_hdr.io_type); 13396 break; /* NOTREACHED */ 13397 } 13398 13399 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13400 if (lun == NULL) { 13401 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13402 io->io_hdr.nexus.targ_mapped_lun)); 13403 goto bailout; 13404 } 13405 13406 mtx_lock(&lun->lun_lock); 13407 13408 /* 13409 * Check to see if we have any errors to inject here. We only 13410 * inject errors for commands that don't already have errors set. 13411 */ 13412 if ((STAILQ_FIRST(&lun->error_list) != NULL) && 13413 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) && 13414 ((io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0)) 13415 ctl_inject_error(lun, io); 13416 13417 /* 13418 * XXX KDM how do we treat commands that aren't completed 13419 * successfully? 13420 * 13421 * XXX KDM should we also track I/O latency? 13422 */ 13423 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13424 io->io_hdr.io_type == CTL_IO_SCSI) { 13425#ifdef CTL_TIME_IO 13426 struct bintime cur_bt; 13427#endif 13428 int type; 13429 13430 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13431 CTL_FLAG_DATA_IN) 13432 type = CTL_STATS_READ; 13433 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13434 CTL_FLAG_DATA_OUT) 13435 type = CTL_STATS_WRITE; 13436 else 13437 type = CTL_STATS_NO_IO; 13438 13439 lun->stats.ports[targ_port].bytes[type] += 13440 io->scsiio.kern_total_len; 13441 lun->stats.ports[targ_port].operations[type]++; 13442#ifdef CTL_TIME_IO 13443 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13444 &io->io_hdr.dma_bt); 13445 lun->stats.ports[targ_port].num_dmas[type] += 13446 io->io_hdr.num_dmas; 13447 getbintime(&cur_bt); 13448 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13449 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13450#endif 13451 } 13452 13453 /* 13454 * Remove this from the OOA queue. 13455 */ 13456 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13457 13458 /* 13459 * Run through the blocked queue on this LUN and see if anything 13460 * has become unblocked, now that this transaction is done. 13461 */ 13462 ctl_check_blocked(lun); 13463 13464 /* 13465 * If the LUN has been invalidated, free it if there is nothing 13466 * left on its OOA queue. 13467 */ 13468 if ((lun->flags & CTL_LUN_INVALID) 13469 && TAILQ_EMPTY(&lun->ooa_queue)) { 13470 mtx_unlock(&lun->lun_lock); 13471 mtx_lock(&ctl_softc->ctl_lock); 13472 ctl_free_lun(lun); 13473 mtx_unlock(&ctl_softc->ctl_lock); 13474 } else 13475 mtx_unlock(&lun->lun_lock); 13476 13477bailout: 13478 13479 /* 13480 * If this command has been aborted, make sure we set the status 13481 * properly. The FETD is responsible for freeing the I/O and doing 13482 * whatever it needs to do to clean up its state. 13483 */ 13484 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13485 ctl_set_task_aborted(&io->scsiio); 13486 13487 /* 13488 * If enabled, print command error status. 13489 * We don't print UAs unless debugging was enabled explicitly. 13490 */ 13491 do { 13492 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) 13493 break; 13494 if (!bootverbose && (ctl_debug & CTL_DEBUG_INFO) == 0) 13495 break; 13496 if ((ctl_debug & CTL_DEBUG_INFO) == 0 && 13497 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SCSI_ERROR) && 13498 (io->scsiio.scsi_status == SCSI_STATUS_CHECK_COND)) { 13499 int error_code, sense_key, asc, ascq; 13500 13501 scsi_extract_sense_len(&io->scsiio.sense_data, 13502 io->scsiio.sense_len, &error_code, &sense_key, 13503 &asc, &ascq, /*show_errors*/ 0); 13504 if (sense_key == SSD_KEY_UNIT_ATTENTION) 13505 break; 13506 } 13507 13508 ctl_io_error_print(io, NULL); 13509 } while (0); 13510 13511 /* 13512 * Tell the FETD or the other shelf controller we're done with this 13513 * command. Note that only SCSI commands get to this point. Task 13514 * management commands are completed above. 13515 * 13516 * We only send status to the other controller if we're in XFER 13517 * mode. In SER_ONLY mode, the I/O is done on the controller that 13518 * received the I/O (from CTL's perspective), and so the status is 13519 * generated there. 13520 * 13521 * XXX KDM if we hold the lock here, we could cause a deadlock 13522 * if the frontend comes back in in this context to queue 13523 * something. 13524 */ 13525 if ((ctl_softc->ha_mode == CTL_HA_MODE_XFER) 13526 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 13527 union ctl_ha_msg msg; 13528 13529 memset(&msg, 0, sizeof(msg)); 13530 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13531 msg.hdr.original_sc = io->io_hdr.original_sc; 13532 msg.hdr.nexus = io->io_hdr.nexus; 13533 msg.hdr.status = io->io_hdr.status; 13534 msg.scsi.scsi_status = io->scsiio.scsi_status; 13535 msg.scsi.tag_num = io->scsiio.tag_num; 13536 msg.scsi.tag_type = io->scsiio.tag_type; 13537 msg.scsi.sense_len = io->scsiio.sense_len; 13538 msg.scsi.sense_residual = io->scsiio.sense_residual; 13539 msg.scsi.residual = io->scsiio.residual; 13540 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13541 sizeof(io->scsiio.sense_data)); 13542 /* 13543 * We copy this whether or not this is an I/O-related 13544 * command. Otherwise, we'd have to go and check to see 13545 * whether it's a read/write command, and it really isn't 13546 * worth it. 13547 */ 13548 memcpy(&msg.scsi.lbalen, 13549 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 13550 sizeof(msg.scsi.lbalen)); 13551 13552 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13553 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13554 /* XXX do something here */ 13555 } 13556 13557 ctl_free_io(io); 13558 } else 13559 fe_done(io); 13560 13561 return (CTL_RETVAL_COMPLETE); 13562} 13563 13564#ifdef CTL_WITH_CA 13565/* 13566 * Front end should call this if it doesn't do autosense. When the request 13567 * sense comes back in from the initiator, we'll dequeue this and send it. 13568 */ 13569int 13570ctl_queue_sense(union ctl_io *io) 13571{ 13572 struct ctl_lun *lun; 13573 struct ctl_softc *ctl_softc; 13574 uint32_t initidx, targ_lun; 13575 13576 ctl_softc = control_softc; 13577 13578 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13579 13580 /* 13581 * LUN lookup will likely move to the ctl_work_thread() once we 13582 * have our new queueing infrastructure (that doesn't put things on 13583 * a per-LUN queue initially). That is so that we can handle 13584 * things like an INQUIRY to a LUN that we don't have enabled. We 13585 * can't deal with that right now. 13586 */ 13587 mtx_lock(&ctl_softc->ctl_lock); 13588 13589 /* 13590 * If we don't have a LUN for this, just toss the sense 13591 * information. 13592 */ 13593 targ_lun = io->io_hdr.nexus.targ_lun; 13594 targ_lun = ctl_map_lun(io->io_hdr.nexus.targ_port, targ_lun); 13595 if ((targ_lun < CTL_MAX_LUNS) 13596 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 13597 lun = ctl_softc->ctl_luns[targ_lun]; 13598 else 13599 goto bailout; 13600 13601 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13602 13603 mtx_lock(&lun->lun_lock); 13604 /* 13605 * Already have CA set for this LUN...toss the sense information. 13606 */ 13607 if (ctl_is_set(lun->have_ca, initidx)) { 13608 mtx_unlock(&lun->lun_lock); 13609 goto bailout; 13610 } 13611 13612 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13613 ctl_min(sizeof(lun->pending_sense[initidx]), 13614 sizeof(io->scsiio.sense_data))); 13615 ctl_set_mask(lun->have_ca, initidx); 13616 mtx_unlock(&lun->lun_lock); 13617 13618bailout: 13619 mtx_unlock(&ctl_softc->ctl_lock); 13620 13621 ctl_free_io(io); 13622 13623 return (CTL_RETVAL_COMPLETE); 13624} 13625#endif 13626 13627/* 13628 * Primary command inlet from frontend ports. All SCSI and task I/O 13629 * requests must go through this function. 13630 */ 13631int 13632ctl_queue(union ctl_io *io) 13633{ 13634 struct ctl_softc *ctl_softc; 13635 13636 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13637 13638 ctl_softc = control_softc; 13639 13640#ifdef CTL_TIME_IO 13641 io->io_hdr.start_time = time_uptime; 13642 getbintime(&io->io_hdr.start_bt); 13643#endif /* CTL_TIME_IO */ 13644 13645 /* Map FE-specific LUN ID into global one. */ 13646 io->io_hdr.nexus.targ_mapped_lun = 13647 ctl_map_lun(io->io_hdr.nexus.targ_port, io->io_hdr.nexus.targ_lun); 13648 13649 switch (io->io_hdr.io_type) { 13650 case CTL_IO_SCSI: 13651 case CTL_IO_TASK: 13652 if (ctl_debug & CTL_DEBUG_CDB) 13653 ctl_io_print(io); 13654 ctl_enqueue_incoming(io); 13655 break; 13656 default: 13657 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13658 return (EINVAL); 13659 } 13660 13661 return (CTL_RETVAL_COMPLETE); 13662} 13663 13664#ifdef CTL_IO_DELAY 13665static void 13666ctl_done_timer_wakeup(void *arg) 13667{ 13668 union ctl_io *io; 13669 13670 io = (union ctl_io *)arg; 13671 ctl_done(io); 13672} 13673#endif /* CTL_IO_DELAY */ 13674 13675void 13676ctl_done(union ctl_io *io) 13677{ 13678 struct ctl_softc *ctl_softc; 13679 13680 ctl_softc = control_softc; 13681 13682 /* 13683 * Enable this to catch duplicate completion issues. 13684 */ 13685#if 0 13686 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13687 printf("%s: type %d msg %d cdb %x iptl: " 13688 "%d:%d:%d:%d tag 0x%04x " 13689 "flag %#x status %x\n", 13690 __func__, 13691 io->io_hdr.io_type, 13692 io->io_hdr.msg_type, 13693 io->scsiio.cdb[0], 13694 io->io_hdr.nexus.initid.id, 13695 io->io_hdr.nexus.targ_port, 13696 io->io_hdr.nexus.targ_target.id, 13697 io->io_hdr.nexus.targ_lun, 13698 (io->io_hdr.io_type == 13699 CTL_IO_TASK) ? 13700 io->taskio.tag_num : 13701 io->scsiio.tag_num, 13702 io->io_hdr.flags, 13703 io->io_hdr.status); 13704 } else 13705 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13706#endif 13707 13708 /* 13709 * This is an internal copy of an I/O, and should not go through 13710 * the normal done processing logic. 13711 */ 13712 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13713 return; 13714 13715 /* 13716 * We need to send a msg to the serializing shelf to finish the IO 13717 * as well. We don't send a finish message to the other shelf if 13718 * this is a task management command. Task management commands 13719 * aren't serialized in the OOA queue, but rather just executed on 13720 * both shelf controllers for commands that originated on that 13721 * controller. 13722 */ 13723 if ((io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC) 13724 && (io->io_hdr.io_type != CTL_IO_TASK)) { 13725 union ctl_ha_msg msg_io; 13726 13727 msg_io.hdr.msg_type = CTL_MSG_FINISH_IO; 13728 msg_io.hdr.serializing_sc = io->io_hdr.serializing_sc; 13729 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_io, 13730 sizeof(msg_io), 0 ) != CTL_HA_STATUS_SUCCESS) { 13731 } 13732 /* continue on to finish IO */ 13733 } 13734#ifdef CTL_IO_DELAY 13735 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13736 struct ctl_lun *lun; 13737 13738 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13739 13740 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13741 } else { 13742 struct ctl_lun *lun; 13743 13744 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13745 13746 if ((lun != NULL) 13747 && (lun->delay_info.done_delay > 0)) { 13748 struct callout *callout; 13749 13750 callout = (struct callout *)&io->io_hdr.timer_bytes; 13751 callout_init(callout, /*mpsafe*/ 1); 13752 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13753 callout_reset(callout, 13754 lun->delay_info.done_delay * hz, 13755 ctl_done_timer_wakeup, io); 13756 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13757 lun->delay_info.done_delay = 0; 13758 return; 13759 } 13760 } 13761#endif /* CTL_IO_DELAY */ 13762 13763 ctl_enqueue_done(io); 13764} 13765 13766int 13767ctl_isc(struct ctl_scsiio *ctsio) 13768{ 13769 struct ctl_lun *lun; 13770 int retval; 13771 13772 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13773 13774 CTL_DEBUG_PRINT(("ctl_isc: command: %02x\n", ctsio->cdb[0])); 13775 13776 CTL_DEBUG_PRINT(("ctl_isc: calling data_submit()\n")); 13777 13778 retval = lun->backend->data_submit((union ctl_io *)ctsio); 13779 13780 return (retval); 13781} 13782 13783 13784static void 13785ctl_work_thread(void *arg) 13786{ 13787 struct ctl_thread *thr = (struct ctl_thread *)arg; 13788 struct ctl_softc *softc = thr->ctl_softc; 13789 union ctl_io *io; 13790 int retval; 13791 13792 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13793 13794 for (;;) { 13795 retval = 0; 13796 13797 /* 13798 * We handle the queues in this order: 13799 * - ISC 13800 * - done queue (to free up resources, unblock other commands) 13801 * - RtR queue 13802 * - incoming queue 13803 * 13804 * If those queues are empty, we break out of the loop and 13805 * go to sleep. 13806 */ 13807 mtx_lock(&thr->queue_lock); 13808 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13809 if (io != NULL) { 13810 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13811 mtx_unlock(&thr->queue_lock); 13812 ctl_handle_isc(io); 13813 continue; 13814 } 13815 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13816 if (io != NULL) { 13817 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13818 /* clear any blocked commands, call fe_done */ 13819 mtx_unlock(&thr->queue_lock); 13820 retval = ctl_process_done(io); 13821 continue; 13822 } 13823 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13824 if (io != NULL) { 13825 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13826 mtx_unlock(&thr->queue_lock); 13827 if (io->io_hdr.io_type == CTL_IO_TASK) 13828 ctl_run_task(io); 13829 else 13830 ctl_scsiio_precheck(softc, &io->scsiio); 13831 continue; 13832 } 13833 if (!ctl_pause_rtr) { 13834 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13835 if (io != NULL) { 13836 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13837 mtx_unlock(&thr->queue_lock); 13838 retval = ctl_scsiio(&io->scsiio); 13839 if (retval != CTL_RETVAL_COMPLETE) 13840 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13841 continue; 13842 } 13843 } 13844 13845 /* Sleep until we have something to do. */ 13846 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13847 } 13848} 13849 13850static void 13851ctl_lun_thread(void *arg) 13852{ 13853 struct ctl_softc *softc = (struct ctl_softc *)arg; 13854 struct ctl_be_lun *be_lun; 13855 int retval; 13856 13857 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 13858 13859 for (;;) { 13860 retval = 0; 13861 mtx_lock(&softc->ctl_lock); 13862 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 13863 if (be_lun != NULL) { 13864 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 13865 mtx_unlock(&softc->ctl_lock); 13866 ctl_create_lun(be_lun); 13867 continue; 13868 } 13869 13870 /* Sleep until we have something to do. */ 13871 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 13872 PDROP | PRIBIO, "-", 0); 13873 } 13874} 13875 13876static void 13877ctl_thresh_thread(void *arg) 13878{ 13879 struct ctl_softc *softc = (struct ctl_softc *)arg; 13880 struct ctl_lun *lun; 13881 struct ctl_be_lun *be_lun; 13882 struct scsi_da_rw_recovery_page *rwpage; 13883 struct ctl_logical_block_provisioning_page *page; 13884 const char *attr; 13885 uint64_t thres, val; 13886 int i, e; 13887 13888 CTL_DEBUG_PRINT(("ctl_thresh_thread starting\n")); 13889 13890 for (;;) { 13891 mtx_lock(&softc->ctl_lock); 13892 STAILQ_FOREACH(lun, &softc->lun_list, links) { 13893 be_lun = lun->be_lun; 13894 if ((lun->flags & CTL_LUN_DISABLED) || 13895 (lun->flags & CTL_LUN_OFFLINE) || 13896 (be_lun->flags & CTL_LUN_FLAG_UNMAP) == 0 || 13897 lun->backend->lun_attr == NULL) 13898 continue; 13899 rwpage = &lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT]; 13900 if ((rwpage->byte8 & SMS_RWER_LBPERE) == 0) 13901 continue; 13902 e = 0; 13903 page = &lun->mode_pages.lbp_page[CTL_PAGE_CURRENT]; 13904 for (i = 0; i < CTL_NUM_LBP_THRESH; i++) { 13905 if ((page->descr[i].flags & SLBPPD_ENABLED) == 0) 13906 continue; 13907 thres = scsi_4btoul(page->descr[i].count); 13908 thres <<= CTL_LBP_EXPONENT; 13909 switch (page->descr[i].resource) { 13910 case 0x01: 13911 attr = "blocksavail"; 13912 break; 13913 case 0x02: 13914 attr = "blocksused"; 13915 break; 13916 case 0xf1: 13917 attr = "poolblocksavail"; 13918 break; 13919 case 0xf2: 13920 attr = "poolblocksused"; 13921 break; 13922 default: 13923 continue; 13924 } 13925 mtx_unlock(&softc->ctl_lock); // XXX 13926 val = lun->backend->lun_attr( 13927 lun->be_lun->be_lun, attr); 13928 mtx_lock(&softc->ctl_lock); 13929 if (val == UINT64_MAX) 13930 continue; 13931 if ((page->descr[i].flags & SLBPPD_ARMING_MASK) 13932 == SLBPPD_ARMING_INC) 13933 e |= (val >= thres); 13934 else 13935 e |= (val <= thres); 13936 } 13937 mtx_lock(&lun->lun_lock); 13938 if (e) { 13939 if (lun->lasttpt == 0 || 13940 time_uptime - lun->lasttpt >= CTL_LBP_UA_PERIOD) { 13941 lun->lasttpt = time_uptime; 13942 for (i = 0; i < CTL_MAX_INITIATORS; i++) 13943 lun->pending_ua[i] |= 13944 CTL_UA_THIN_PROV_THRES; 13945 } 13946 } else { 13947 lun->lasttpt = 0; 13948 for (i = 0; i < CTL_MAX_INITIATORS; i++) 13949 lun->pending_ua[i] &= ~CTL_UA_THIN_PROV_THRES; 13950 } 13951 mtx_unlock(&lun->lun_lock); 13952 } 13953 mtx_unlock(&softc->ctl_lock); 13954 pause("-", CTL_LBP_PERIOD * hz); 13955 } 13956} 13957 13958static void 13959ctl_enqueue_incoming(union ctl_io *io) 13960{ 13961 struct ctl_softc *softc = control_softc; 13962 struct ctl_thread *thr; 13963 u_int idx; 13964 13965 idx = (io->io_hdr.nexus.targ_port * 127 + 13966 io->io_hdr.nexus.initid.id) % worker_threads; 13967 thr = &softc->threads[idx]; 13968 mtx_lock(&thr->queue_lock); 13969 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 13970 mtx_unlock(&thr->queue_lock); 13971 wakeup(thr); 13972} 13973 13974static void 13975ctl_enqueue_rtr(union ctl_io *io) 13976{ 13977 struct ctl_softc *softc = control_softc; 13978 struct ctl_thread *thr; 13979 13980 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13981 mtx_lock(&thr->queue_lock); 13982 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 13983 mtx_unlock(&thr->queue_lock); 13984 wakeup(thr); 13985} 13986 13987static void 13988ctl_enqueue_done(union ctl_io *io) 13989{ 13990 struct ctl_softc *softc = control_softc; 13991 struct ctl_thread *thr; 13992 13993 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13994 mtx_lock(&thr->queue_lock); 13995 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 13996 mtx_unlock(&thr->queue_lock); 13997 wakeup(thr); 13998} 13999 14000static void 14001ctl_enqueue_isc(union ctl_io *io) 14002{ 14003 struct ctl_softc *softc = control_softc; 14004 struct ctl_thread *thr; 14005 14006 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14007 mtx_lock(&thr->queue_lock); 14008 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 14009 mtx_unlock(&thr->queue_lock); 14010 wakeup(thr); 14011} 14012 14013/* Initialization and failover */ 14014 14015void 14016ctl_init_isc_msg(void) 14017{ 14018 printf("CTL: Still calling this thing\n"); 14019} 14020 14021/* 14022 * Init component 14023 * Initializes component into configuration defined by bootMode 14024 * (see hasc-sv.c) 14025 * returns hasc_Status: 14026 * OK 14027 * ERROR - fatal error 14028 */ 14029static ctl_ha_comp_status 14030ctl_isc_init(struct ctl_ha_component *c) 14031{ 14032 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14033 14034 c->status = ret; 14035 return ret; 14036} 14037 14038/* Start component 14039 * Starts component in state requested. If component starts successfully, 14040 * it must set its own state to the requestrd state 14041 * When requested state is HASC_STATE_HA, the component may refine it 14042 * by adding _SLAVE or _MASTER flags. 14043 * Currently allowed state transitions are: 14044 * UNKNOWN->HA - initial startup 14045 * UNKNOWN->SINGLE - initial startup when no parter detected 14046 * HA->SINGLE - failover 14047 * returns ctl_ha_comp_status: 14048 * OK - component successfully started in requested state 14049 * FAILED - could not start the requested state, failover may 14050 * be possible 14051 * ERROR - fatal error detected, no future startup possible 14052 */ 14053static ctl_ha_comp_status 14054ctl_isc_start(struct ctl_ha_component *c, ctl_ha_state state) 14055{ 14056 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14057 14058 printf("%s: go\n", __func__); 14059 14060 // UNKNOWN->HA or UNKNOWN->SINGLE (bootstrap) 14061 if (c->state == CTL_HA_STATE_UNKNOWN ) { 14062 control_softc->is_single = 0; 14063 if (ctl_ha_msg_create(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 14064 != CTL_HA_STATUS_SUCCESS) { 14065 printf("ctl_isc_start: ctl_ha_msg_create failed.\n"); 14066 ret = CTL_HA_COMP_STATUS_ERROR; 14067 } 14068 } else if (CTL_HA_STATE_IS_HA(c->state) 14069 && CTL_HA_STATE_IS_SINGLE(state)){ 14070 // HA->SINGLE transition 14071 ctl_failover(); 14072 control_softc->is_single = 1; 14073 } else { 14074 printf("ctl_isc_start:Invalid state transition %X->%X\n", 14075 c->state, state); 14076 ret = CTL_HA_COMP_STATUS_ERROR; 14077 } 14078 if (CTL_HA_STATE_IS_SINGLE(state)) 14079 control_softc->is_single = 1; 14080 14081 c->state = state; 14082 c->status = ret; 14083 return ret; 14084} 14085 14086/* 14087 * Quiesce component 14088 * The component must clear any error conditions (set status to OK) and 14089 * prepare itself to another Start call 14090 * returns ctl_ha_comp_status: 14091 * OK 14092 * ERROR 14093 */ 14094static ctl_ha_comp_status 14095ctl_isc_quiesce(struct ctl_ha_component *c) 14096{ 14097 int ret = CTL_HA_COMP_STATUS_OK; 14098 14099 ctl_pause_rtr = 1; 14100 c->status = ret; 14101 return ret; 14102} 14103 14104struct ctl_ha_component ctl_ha_component_ctlisc = 14105{ 14106 .name = "CTL ISC", 14107 .state = CTL_HA_STATE_UNKNOWN, 14108 .init = ctl_isc_init, 14109 .start = ctl_isc_start, 14110 .quiesce = ctl_isc_quiesce 14111}; 14112 14113/* 14114 * vim: ts=8 14115 */ 14116