ctl.c revision 275883
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 275883 2014-12-18 08:27:00Z 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 7878/* 7879 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7880 * it should return. 7881 */ 7882static int 7883ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7884 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7885 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7886 struct scsi_per_res_out_parms* param) 7887{ 7888 union ctl_ha_msg persis_io; 7889 int retval, i; 7890 int isc_retval; 7891 7892 retval = 0; 7893 7894 mtx_lock(&lun->lun_lock); 7895 if (sa_res_key == 0) { 7896 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7897 /* validate scope and type */ 7898 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7899 SPR_LU_SCOPE) { 7900 mtx_unlock(&lun->lun_lock); 7901 ctl_set_invalid_field(/*ctsio*/ ctsio, 7902 /*sks_valid*/ 1, 7903 /*command*/ 1, 7904 /*field*/ 2, 7905 /*bit_valid*/ 1, 7906 /*bit*/ 4); 7907 ctl_done((union ctl_io *)ctsio); 7908 return (1); 7909 } 7910 7911 if (type>8 || type==2 || type==4 || type==0) { 7912 mtx_unlock(&lun->lun_lock); 7913 ctl_set_invalid_field(/*ctsio*/ ctsio, 7914 /*sks_valid*/ 1, 7915 /*command*/ 1, 7916 /*field*/ 2, 7917 /*bit_valid*/ 1, 7918 /*bit*/ 0); 7919 ctl_done((union ctl_io *)ctsio); 7920 return (1); 7921 } 7922 7923 /* 7924 * Unregister everybody else and build UA for 7925 * them 7926 */ 7927 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 7928 if (i == residx || lun->pr_keys[i] == 0) 7929 continue; 7930 7931 if (!persis_offset 7932 && i <CTL_MAX_INITIATORS) 7933 lun->pending_ua[i] |= 7934 CTL_UA_REG_PREEMPT; 7935 else if (persis_offset 7936 && i >= persis_offset) 7937 lun->pending_ua[i-persis_offset] |= 7938 CTL_UA_REG_PREEMPT; 7939 lun->pr_keys[i] = 0; 7940 } 7941 lun->pr_key_count = 1; 7942 lun->res_type = type; 7943 if (lun->res_type != SPR_TYPE_WR_EX_AR 7944 && lun->res_type != SPR_TYPE_EX_AC_AR) 7945 lun->pr_res_idx = residx; 7946 7947 /* send msg to other side */ 7948 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7949 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7950 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7951 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7952 persis_io.pr.pr_info.res_type = type; 7953 memcpy(persis_io.pr.pr_info.sa_res_key, 7954 param->serv_act_res_key, 7955 sizeof(param->serv_act_res_key)); 7956 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 7957 &persis_io, sizeof(persis_io), 0)) > 7958 CTL_HA_STATUS_SUCCESS) { 7959 printf("CTL:Persis Out error returned " 7960 "from ctl_ha_msg_send %d\n", 7961 isc_retval); 7962 } 7963 } else { 7964 /* not all registrants */ 7965 mtx_unlock(&lun->lun_lock); 7966 free(ctsio->kern_data_ptr, M_CTL); 7967 ctl_set_invalid_field(ctsio, 7968 /*sks_valid*/ 1, 7969 /*command*/ 0, 7970 /*field*/ 8, 7971 /*bit_valid*/ 0, 7972 /*bit*/ 0); 7973 ctl_done((union ctl_io *)ctsio); 7974 return (1); 7975 } 7976 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 7977 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 7978 int found = 0; 7979 7980 if (res_key == sa_res_key) { 7981 /* special case */ 7982 /* 7983 * The spec implies this is not good but doesn't 7984 * say what to do. There are two choices either 7985 * generate a res conflict or check condition 7986 * with illegal field in parameter data. Since 7987 * that is what is done when the sa_res_key is 7988 * zero I'll take that approach since this has 7989 * to do with the sa_res_key. 7990 */ 7991 mtx_unlock(&lun->lun_lock); 7992 free(ctsio->kern_data_ptr, M_CTL); 7993 ctl_set_invalid_field(ctsio, 7994 /*sks_valid*/ 1, 7995 /*command*/ 0, 7996 /*field*/ 8, 7997 /*bit_valid*/ 0, 7998 /*bit*/ 0); 7999 ctl_done((union ctl_io *)ctsio); 8000 return (1); 8001 } 8002 8003 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8004 if (lun->pr_keys[i] != sa_res_key) 8005 continue; 8006 8007 found = 1; 8008 lun->pr_keys[i] = 0; 8009 lun->pr_key_count--; 8010 8011 if (!persis_offset && i < CTL_MAX_INITIATORS) 8012 lun->pending_ua[i] |= CTL_UA_REG_PREEMPT; 8013 else if (persis_offset && i >= persis_offset) 8014 lun->pending_ua[i-persis_offset] |= 8015 CTL_UA_REG_PREEMPT; 8016 } 8017 if (!found) { 8018 mtx_unlock(&lun->lun_lock); 8019 free(ctsio->kern_data_ptr, M_CTL); 8020 ctl_set_reservation_conflict(ctsio); 8021 ctl_done((union ctl_io *)ctsio); 8022 return (CTL_RETVAL_COMPLETE); 8023 } 8024 /* send msg to other side */ 8025 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8026 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8027 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8028 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8029 persis_io.pr.pr_info.res_type = type; 8030 memcpy(persis_io.pr.pr_info.sa_res_key, 8031 param->serv_act_res_key, 8032 sizeof(param->serv_act_res_key)); 8033 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8034 &persis_io, sizeof(persis_io), 0)) > 8035 CTL_HA_STATUS_SUCCESS) { 8036 printf("CTL:Persis Out error returned from " 8037 "ctl_ha_msg_send %d\n", isc_retval); 8038 } 8039 } else { 8040 /* Reserved but not all registrants */ 8041 /* sa_res_key is res holder */ 8042 if (sa_res_key == lun->pr_keys[lun->pr_res_idx]) { 8043 /* validate scope and type */ 8044 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8045 SPR_LU_SCOPE) { 8046 mtx_unlock(&lun->lun_lock); 8047 ctl_set_invalid_field(/*ctsio*/ ctsio, 8048 /*sks_valid*/ 1, 8049 /*command*/ 1, 8050 /*field*/ 2, 8051 /*bit_valid*/ 1, 8052 /*bit*/ 4); 8053 ctl_done((union ctl_io *)ctsio); 8054 return (1); 8055 } 8056 8057 if (type>8 || type==2 || type==4 || type==0) { 8058 mtx_unlock(&lun->lun_lock); 8059 ctl_set_invalid_field(/*ctsio*/ ctsio, 8060 /*sks_valid*/ 1, 8061 /*command*/ 1, 8062 /*field*/ 2, 8063 /*bit_valid*/ 1, 8064 /*bit*/ 0); 8065 ctl_done((union ctl_io *)ctsio); 8066 return (1); 8067 } 8068 8069 /* 8070 * Do the following: 8071 * if sa_res_key != res_key remove all 8072 * registrants w/sa_res_key and generate UA 8073 * for these registrants(Registrations 8074 * Preempted) if it wasn't an exclusive 8075 * reservation generate UA(Reservations 8076 * Preempted) for all other registered nexuses 8077 * if the type has changed. Establish the new 8078 * reservation and holder. If res_key and 8079 * sa_res_key are the same do the above 8080 * except don't unregister the res holder. 8081 */ 8082 8083 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8084 if (i == residx || lun->pr_keys[i] == 0) 8085 continue; 8086 8087 if (sa_res_key == lun->pr_keys[i]) { 8088 lun->pr_keys[i] = 0; 8089 lun->pr_key_count--; 8090 8091 if (!persis_offset 8092 && i < CTL_MAX_INITIATORS) 8093 lun->pending_ua[i] |= 8094 CTL_UA_REG_PREEMPT; 8095 else if (persis_offset 8096 && i >= persis_offset) 8097 lun->pending_ua[i-persis_offset] |= 8098 CTL_UA_REG_PREEMPT; 8099 } else if (type != lun->res_type 8100 && (lun->res_type == SPR_TYPE_WR_EX_RO 8101 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 8102 if (!persis_offset 8103 && i < CTL_MAX_INITIATORS) 8104 lun->pending_ua[i] |= 8105 CTL_UA_RES_RELEASE; 8106 else if (persis_offset 8107 && i >= persis_offset) 8108 lun->pending_ua[ 8109 i-persis_offset] |= 8110 CTL_UA_RES_RELEASE; 8111 } 8112 } 8113 lun->res_type = type; 8114 if (lun->res_type != SPR_TYPE_WR_EX_AR 8115 && lun->res_type != SPR_TYPE_EX_AC_AR) 8116 lun->pr_res_idx = residx; 8117 else 8118 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8119 8120 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8121 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8122 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8123 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8124 persis_io.pr.pr_info.res_type = type; 8125 memcpy(persis_io.pr.pr_info.sa_res_key, 8126 param->serv_act_res_key, 8127 sizeof(param->serv_act_res_key)); 8128 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8129 &persis_io, sizeof(persis_io), 0)) > 8130 CTL_HA_STATUS_SUCCESS) { 8131 printf("CTL:Persis Out error returned " 8132 "from ctl_ha_msg_send %d\n", 8133 isc_retval); 8134 } 8135 } else { 8136 /* 8137 * sa_res_key is not the res holder just 8138 * remove registrants 8139 */ 8140 int found=0; 8141 8142 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8143 if (sa_res_key != lun->pr_keys[i]) 8144 continue; 8145 8146 found = 1; 8147 lun->pr_keys[i] = 0; 8148 lun->pr_key_count--; 8149 8150 if (!persis_offset 8151 && i < CTL_MAX_INITIATORS) 8152 lun->pending_ua[i] |= 8153 CTL_UA_REG_PREEMPT; 8154 else if (persis_offset 8155 && i >= persis_offset) 8156 lun->pending_ua[i-persis_offset] |= 8157 CTL_UA_REG_PREEMPT; 8158 } 8159 8160 if (!found) { 8161 mtx_unlock(&lun->lun_lock); 8162 free(ctsio->kern_data_ptr, M_CTL); 8163 ctl_set_reservation_conflict(ctsio); 8164 ctl_done((union ctl_io *)ctsio); 8165 return (1); 8166 } 8167 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8168 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8169 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8170 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8171 persis_io.pr.pr_info.res_type = type; 8172 memcpy(persis_io.pr.pr_info.sa_res_key, 8173 param->serv_act_res_key, 8174 sizeof(param->serv_act_res_key)); 8175 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8176 &persis_io, sizeof(persis_io), 0)) > 8177 CTL_HA_STATUS_SUCCESS) { 8178 printf("CTL:Persis Out error returned " 8179 "from ctl_ha_msg_send %d\n", 8180 isc_retval); 8181 } 8182 } 8183 } 8184 8185 lun->PRGeneration++; 8186 mtx_unlock(&lun->lun_lock); 8187 8188 return (retval); 8189} 8190 8191static void 8192ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8193{ 8194 uint64_t sa_res_key; 8195 int i; 8196 8197 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8198 8199 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8200 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8201 || sa_res_key != lun->pr_keys[lun->pr_res_idx]) { 8202 if (sa_res_key == 0) { 8203 /* 8204 * Unregister everybody else and build UA for 8205 * them 8206 */ 8207 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8208 if (i == msg->pr.pr_info.residx || 8209 lun->pr_keys[i] == 0) 8210 continue; 8211 8212 if (!persis_offset 8213 && i < CTL_MAX_INITIATORS) 8214 lun->pending_ua[i] |= 8215 CTL_UA_REG_PREEMPT; 8216 else if (persis_offset && i >= persis_offset) 8217 lun->pending_ua[i - persis_offset] |= 8218 CTL_UA_REG_PREEMPT; 8219 lun->pr_keys[i] = 0; 8220 } 8221 8222 lun->pr_key_count = 1; 8223 lun->res_type = msg->pr.pr_info.res_type; 8224 if (lun->res_type != SPR_TYPE_WR_EX_AR 8225 && lun->res_type != SPR_TYPE_EX_AC_AR) 8226 lun->pr_res_idx = msg->pr.pr_info.residx; 8227 } else { 8228 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8229 if (sa_res_key == lun->pr_keys[i]) 8230 continue; 8231 8232 lun->pr_keys[i] = 0; 8233 lun->pr_key_count--; 8234 8235 if (!persis_offset 8236 && i < persis_offset) 8237 lun->pending_ua[i] |= 8238 CTL_UA_REG_PREEMPT; 8239 else if (persis_offset 8240 && i >= persis_offset) 8241 lun->pending_ua[i - persis_offset] |= 8242 CTL_UA_REG_PREEMPT; 8243 } 8244 } 8245 } else { 8246 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8247 if (i == msg->pr.pr_info.residx || 8248 lun->pr_keys[i] == 0) 8249 continue; 8250 8251 if (sa_res_key == lun->pr_keys[i]) { 8252 lun->pr_keys[i] = 0; 8253 lun->pr_key_count--; 8254 if (!persis_offset 8255 && i < CTL_MAX_INITIATORS) 8256 lun->pending_ua[i] |= 8257 CTL_UA_REG_PREEMPT; 8258 else if (persis_offset 8259 && i >= persis_offset) 8260 lun->pending_ua[i - persis_offset] |= 8261 CTL_UA_REG_PREEMPT; 8262 } else if (msg->pr.pr_info.res_type != lun->res_type 8263 && (lun->res_type == SPR_TYPE_WR_EX_RO 8264 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8265 if (!persis_offset 8266 && i < persis_offset) 8267 lun->pending_ua[i] |= 8268 CTL_UA_RES_RELEASE; 8269 else if (persis_offset 8270 && i >= persis_offset) 8271 lun->pending_ua[i - persis_offset] |= 8272 CTL_UA_RES_RELEASE; 8273 } 8274 } 8275 lun->res_type = msg->pr.pr_info.res_type; 8276 if (lun->res_type != SPR_TYPE_WR_EX_AR 8277 && lun->res_type != SPR_TYPE_EX_AC_AR) 8278 lun->pr_res_idx = msg->pr.pr_info.residx; 8279 else 8280 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8281 } 8282 lun->PRGeneration++; 8283 8284} 8285 8286 8287int 8288ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8289{ 8290 int retval; 8291 int isc_retval; 8292 u_int32_t param_len; 8293 struct scsi_per_res_out *cdb; 8294 struct ctl_lun *lun; 8295 struct scsi_per_res_out_parms* param; 8296 struct ctl_softc *softc; 8297 uint32_t residx; 8298 uint64_t res_key, sa_res_key; 8299 uint8_t type; 8300 union ctl_ha_msg persis_io; 8301 int i; 8302 8303 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8304 8305 retval = CTL_RETVAL_COMPLETE; 8306 8307 softc = control_softc; 8308 8309 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8310 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8311 8312 /* 8313 * We only support whole-LUN scope. The scope & type are ignored for 8314 * register, register and ignore existing key and clear. 8315 * We sometimes ignore scope and type on preempts too!! 8316 * Verify reservation type here as well. 8317 */ 8318 type = cdb->scope_type & SPR_TYPE_MASK; 8319 if ((cdb->action == SPRO_RESERVE) 8320 || (cdb->action == SPRO_RELEASE)) { 8321 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8322 ctl_set_invalid_field(/*ctsio*/ ctsio, 8323 /*sks_valid*/ 1, 8324 /*command*/ 1, 8325 /*field*/ 2, 8326 /*bit_valid*/ 1, 8327 /*bit*/ 4); 8328 ctl_done((union ctl_io *)ctsio); 8329 return (CTL_RETVAL_COMPLETE); 8330 } 8331 8332 if (type>8 || type==2 || type==4 || type==0) { 8333 ctl_set_invalid_field(/*ctsio*/ ctsio, 8334 /*sks_valid*/ 1, 8335 /*command*/ 1, 8336 /*field*/ 2, 8337 /*bit_valid*/ 1, 8338 /*bit*/ 0); 8339 ctl_done((union ctl_io *)ctsio); 8340 return (CTL_RETVAL_COMPLETE); 8341 } 8342 } 8343 8344 param_len = scsi_4btoul(cdb->length); 8345 8346 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8347 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8348 ctsio->kern_data_len = param_len; 8349 ctsio->kern_total_len = param_len; 8350 ctsio->kern_data_resid = 0; 8351 ctsio->kern_rel_offset = 0; 8352 ctsio->kern_sg_entries = 0; 8353 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8354 ctsio->be_move_done = ctl_config_move_done; 8355 ctl_datamove((union ctl_io *)ctsio); 8356 8357 return (CTL_RETVAL_COMPLETE); 8358 } 8359 8360 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8361 8362 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8363 res_key = scsi_8btou64(param->res_key.key); 8364 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8365 8366 /* 8367 * Validate the reservation key here except for SPRO_REG_IGNO 8368 * This must be done for all other service actions 8369 */ 8370 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8371 mtx_lock(&lun->lun_lock); 8372 if (lun->pr_keys[residx] != 0) { 8373 if (res_key != lun->pr_keys[residx]) { 8374 /* 8375 * The current key passed in doesn't match 8376 * the one the initiator previously 8377 * registered. 8378 */ 8379 mtx_unlock(&lun->lun_lock); 8380 free(ctsio->kern_data_ptr, M_CTL); 8381 ctl_set_reservation_conflict(ctsio); 8382 ctl_done((union ctl_io *)ctsio); 8383 return (CTL_RETVAL_COMPLETE); 8384 } 8385 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8386 /* 8387 * We are not registered 8388 */ 8389 mtx_unlock(&lun->lun_lock); 8390 free(ctsio->kern_data_ptr, M_CTL); 8391 ctl_set_reservation_conflict(ctsio); 8392 ctl_done((union ctl_io *)ctsio); 8393 return (CTL_RETVAL_COMPLETE); 8394 } else if (res_key != 0) { 8395 /* 8396 * We are not registered and trying to register but 8397 * the register key isn't zero. 8398 */ 8399 mtx_unlock(&lun->lun_lock); 8400 free(ctsio->kern_data_ptr, M_CTL); 8401 ctl_set_reservation_conflict(ctsio); 8402 ctl_done((union ctl_io *)ctsio); 8403 return (CTL_RETVAL_COMPLETE); 8404 } 8405 mtx_unlock(&lun->lun_lock); 8406 } 8407 8408 switch (cdb->action & SPRO_ACTION_MASK) { 8409 case SPRO_REGISTER: 8410 case SPRO_REG_IGNO: { 8411 8412#if 0 8413 printf("Registration received\n"); 8414#endif 8415 8416 /* 8417 * We don't support any of these options, as we report in 8418 * the read capabilities request (see 8419 * ctl_persistent_reserve_in(), above). 8420 */ 8421 if ((param->flags & SPR_SPEC_I_PT) 8422 || (param->flags & SPR_ALL_TG_PT) 8423 || (param->flags & SPR_APTPL)) { 8424 int bit_ptr; 8425 8426 if (param->flags & SPR_APTPL) 8427 bit_ptr = 0; 8428 else if (param->flags & SPR_ALL_TG_PT) 8429 bit_ptr = 2; 8430 else /* SPR_SPEC_I_PT */ 8431 bit_ptr = 3; 8432 8433 free(ctsio->kern_data_ptr, M_CTL); 8434 ctl_set_invalid_field(ctsio, 8435 /*sks_valid*/ 1, 8436 /*command*/ 0, 8437 /*field*/ 20, 8438 /*bit_valid*/ 1, 8439 /*bit*/ bit_ptr); 8440 ctl_done((union ctl_io *)ctsio); 8441 return (CTL_RETVAL_COMPLETE); 8442 } 8443 8444 mtx_lock(&lun->lun_lock); 8445 8446 /* 8447 * The initiator wants to clear the 8448 * key/unregister. 8449 */ 8450 if (sa_res_key == 0) { 8451 if ((res_key == 0 8452 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8453 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8454 && lun->pr_keys[residx] == 0)) { 8455 mtx_unlock(&lun->lun_lock); 8456 goto done; 8457 } 8458 8459 lun->pr_keys[residx] = 0; 8460 lun->pr_key_count--; 8461 8462 if (residx == lun->pr_res_idx) { 8463 lun->flags &= ~CTL_LUN_PR_RESERVED; 8464 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8465 8466 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8467 || lun->res_type == SPR_TYPE_EX_AC_RO) 8468 && lun->pr_key_count) { 8469 /* 8470 * If the reservation is a registrants 8471 * only type we need to generate a UA 8472 * for other registered inits. The 8473 * sense code should be RESERVATIONS 8474 * RELEASED 8475 */ 8476 8477 for (i = 0; i < CTL_MAX_INITIATORS;i++){ 8478 if (lun->pr_keys[ 8479 i + persis_offset] == 0) 8480 continue; 8481 lun->pending_ua[i] |= 8482 CTL_UA_RES_RELEASE; 8483 } 8484 } 8485 lun->res_type = 0; 8486 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8487 if (lun->pr_key_count==0) { 8488 lun->flags &= ~CTL_LUN_PR_RESERVED; 8489 lun->res_type = 0; 8490 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8491 } 8492 } 8493 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8494 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8495 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8496 persis_io.pr.pr_info.residx = residx; 8497 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8498 &persis_io, sizeof(persis_io), 0 )) > 8499 CTL_HA_STATUS_SUCCESS) { 8500 printf("CTL:Persis Out error returned from " 8501 "ctl_ha_msg_send %d\n", isc_retval); 8502 } 8503 } else /* sa_res_key != 0 */ { 8504 8505 /* 8506 * If we aren't registered currently then increment 8507 * the key count and set the registered flag. 8508 */ 8509 if (lun->pr_keys[residx] == 0) 8510 lun->pr_key_count++; 8511 lun->pr_keys[residx] = sa_res_key; 8512 8513 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8514 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8515 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8516 persis_io.pr.pr_info.residx = residx; 8517 memcpy(persis_io.pr.pr_info.sa_res_key, 8518 param->serv_act_res_key, 8519 sizeof(param->serv_act_res_key)); 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 lun->PRGeneration++; 8528 mtx_unlock(&lun->lun_lock); 8529 8530 break; 8531 } 8532 case SPRO_RESERVE: 8533#if 0 8534 printf("Reserve executed type %d\n", type); 8535#endif 8536 mtx_lock(&lun->lun_lock); 8537 if (lun->flags & CTL_LUN_PR_RESERVED) { 8538 /* 8539 * if this isn't the reservation holder and it's 8540 * not a "all registrants" type or if the type is 8541 * different then we have a conflict 8542 */ 8543 if ((lun->pr_res_idx != residx 8544 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8545 || lun->res_type != type) { 8546 mtx_unlock(&lun->lun_lock); 8547 free(ctsio->kern_data_ptr, M_CTL); 8548 ctl_set_reservation_conflict(ctsio); 8549 ctl_done((union ctl_io *)ctsio); 8550 return (CTL_RETVAL_COMPLETE); 8551 } 8552 mtx_unlock(&lun->lun_lock); 8553 } else /* create a reservation */ { 8554 /* 8555 * If it's not an "all registrants" type record 8556 * reservation holder 8557 */ 8558 if (type != SPR_TYPE_WR_EX_AR 8559 && type != SPR_TYPE_EX_AC_AR) 8560 lun->pr_res_idx = residx; /* Res holder */ 8561 else 8562 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8563 8564 lun->flags |= CTL_LUN_PR_RESERVED; 8565 lun->res_type = type; 8566 8567 mtx_unlock(&lun->lun_lock); 8568 8569 /* send msg to other side */ 8570 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8571 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8572 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8573 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8574 persis_io.pr.pr_info.res_type = type; 8575 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8576 &persis_io, sizeof(persis_io), 0)) > 8577 CTL_HA_STATUS_SUCCESS) { 8578 printf("CTL:Persis Out error returned from " 8579 "ctl_ha_msg_send %d\n", isc_retval); 8580 } 8581 } 8582 break; 8583 8584 case SPRO_RELEASE: 8585 mtx_lock(&lun->lun_lock); 8586 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8587 /* No reservation exists return good status */ 8588 mtx_unlock(&lun->lun_lock); 8589 goto done; 8590 } 8591 /* 8592 * Is this nexus a reservation holder? 8593 */ 8594 if (lun->pr_res_idx != residx 8595 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8596 /* 8597 * not a res holder return good status but 8598 * do nothing 8599 */ 8600 mtx_unlock(&lun->lun_lock); 8601 goto done; 8602 } 8603 8604 if (lun->res_type != type) { 8605 mtx_unlock(&lun->lun_lock); 8606 free(ctsio->kern_data_ptr, M_CTL); 8607 ctl_set_illegal_pr_release(ctsio); 8608 ctl_done((union ctl_io *)ctsio); 8609 return (CTL_RETVAL_COMPLETE); 8610 } 8611 8612 /* okay to release */ 8613 lun->flags &= ~CTL_LUN_PR_RESERVED; 8614 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8615 lun->res_type = 0; 8616 8617 /* 8618 * if this isn't an exclusive access 8619 * res generate UA for all other 8620 * registrants. 8621 */ 8622 if (type != SPR_TYPE_EX_AC 8623 && type != SPR_TYPE_WR_EX) { 8624 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8625 if (i == residx || 8626 lun->pr_keys[i + persis_offset] == 0) 8627 continue; 8628 lun->pending_ua[i] |= CTL_UA_RES_RELEASE; 8629 } 8630 } 8631 mtx_unlock(&lun->lun_lock); 8632 /* Send msg to other side */ 8633 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8634 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8635 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8636 if ((isc_retval=ctl_ha_msg_send( CTL_HA_CHAN_CTL, &persis_io, 8637 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8638 printf("CTL:Persis Out error returned from " 8639 "ctl_ha_msg_send %d\n", isc_retval); 8640 } 8641 break; 8642 8643 case SPRO_CLEAR: 8644 /* send msg to other side */ 8645 8646 mtx_lock(&lun->lun_lock); 8647 lun->flags &= ~CTL_LUN_PR_RESERVED; 8648 lun->res_type = 0; 8649 lun->pr_key_count = 0; 8650 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8651 8652 lun->pr_keys[residx] = 0; 8653 8654 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) 8655 if (lun->pr_keys[i] != 0) { 8656 if (!persis_offset && i < CTL_MAX_INITIATORS) 8657 lun->pending_ua[i] |= 8658 CTL_UA_RES_PREEMPT; 8659 else if (persis_offset && i >= persis_offset) 8660 lun->pending_ua[i-persis_offset] |= 8661 CTL_UA_RES_PREEMPT; 8662 8663 lun->pr_keys[i] = 0; 8664 } 8665 lun->PRGeneration++; 8666 mtx_unlock(&lun->lun_lock); 8667 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8668 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8669 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8670 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8671 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8672 printf("CTL:Persis Out error returned from " 8673 "ctl_ha_msg_send %d\n", isc_retval); 8674 } 8675 break; 8676 8677 case SPRO_PREEMPT: 8678 case SPRO_PRE_ABO: { 8679 int nretval; 8680 8681 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8682 residx, ctsio, cdb, param); 8683 if (nretval != 0) 8684 return (CTL_RETVAL_COMPLETE); 8685 break; 8686 } 8687 default: 8688 panic("Invalid PR type %x", cdb->action); 8689 } 8690 8691done: 8692 free(ctsio->kern_data_ptr, M_CTL); 8693 ctl_set_success(ctsio); 8694 ctl_done((union ctl_io *)ctsio); 8695 8696 return (retval); 8697} 8698 8699/* 8700 * This routine is for handling a message from the other SC pertaining to 8701 * persistent reserve out. All the error checking will have been done 8702 * so only perorming the action need be done here to keep the two 8703 * in sync. 8704 */ 8705static void 8706ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8707{ 8708 struct ctl_lun *lun; 8709 struct ctl_softc *softc; 8710 int i; 8711 uint32_t targ_lun; 8712 8713 softc = control_softc; 8714 8715 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8716 lun = softc->ctl_luns[targ_lun]; 8717 mtx_lock(&lun->lun_lock); 8718 switch(msg->pr.pr_info.action) { 8719 case CTL_PR_REG_KEY: 8720 if (lun->pr_keys[msg->pr.pr_info.residx] == 0) 8721 lun->pr_key_count++; 8722 lun->pr_keys[msg->pr.pr_info.residx] = 8723 scsi_8btou64(msg->pr.pr_info.sa_res_key); 8724 lun->PRGeneration++; 8725 break; 8726 8727 case CTL_PR_UNREG_KEY: 8728 lun->pr_keys[msg->pr.pr_info.residx] = 0; 8729 lun->pr_key_count--; 8730 8731 /* XXX Need to see if the reservation has been released */ 8732 /* if so do we need to generate UA? */ 8733 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8734 lun->flags &= ~CTL_LUN_PR_RESERVED; 8735 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8736 8737 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8738 || lun->res_type == SPR_TYPE_EX_AC_RO) 8739 && lun->pr_key_count) { 8740 /* 8741 * If the reservation is a registrants 8742 * only type we need to generate a UA 8743 * for other registered inits. The 8744 * sense code should be RESERVATIONS 8745 * RELEASED 8746 */ 8747 8748 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8749 if (lun->pr_keys[i+ 8750 persis_offset] == 0) 8751 continue; 8752 8753 lun->pending_ua[i] |= 8754 CTL_UA_RES_RELEASE; 8755 } 8756 } 8757 lun->res_type = 0; 8758 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8759 if (lun->pr_key_count==0) { 8760 lun->flags &= ~CTL_LUN_PR_RESERVED; 8761 lun->res_type = 0; 8762 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8763 } 8764 } 8765 lun->PRGeneration++; 8766 break; 8767 8768 case CTL_PR_RESERVE: 8769 lun->flags |= CTL_LUN_PR_RESERVED; 8770 lun->res_type = msg->pr.pr_info.res_type; 8771 lun->pr_res_idx = msg->pr.pr_info.residx; 8772 8773 break; 8774 8775 case CTL_PR_RELEASE: 8776 /* 8777 * if this isn't an exclusive access res generate UA for all 8778 * other registrants. 8779 */ 8780 if (lun->res_type != SPR_TYPE_EX_AC 8781 && lun->res_type != SPR_TYPE_WR_EX) { 8782 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8783 if (lun->pr_keys[i+persis_offset] != 0) 8784 lun->pending_ua[i] |= 8785 CTL_UA_RES_RELEASE; 8786 } 8787 8788 lun->flags &= ~CTL_LUN_PR_RESERVED; 8789 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8790 lun->res_type = 0; 8791 break; 8792 8793 case CTL_PR_PREEMPT: 8794 ctl_pro_preempt_other(lun, msg); 8795 break; 8796 case CTL_PR_CLEAR: 8797 lun->flags &= ~CTL_LUN_PR_RESERVED; 8798 lun->res_type = 0; 8799 lun->pr_key_count = 0; 8800 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8801 8802 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8803 if (lun->pr_keys[i] == 0) 8804 continue; 8805 if (!persis_offset 8806 && i < CTL_MAX_INITIATORS) 8807 lun->pending_ua[i] |= CTL_UA_RES_PREEMPT; 8808 else if (persis_offset 8809 && i >= persis_offset) 8810 lun->pending_ua[i-persis_offset] |= 8811 CTL_UA_RES_PREEMPT; 8812 lun->pr_keys[i] = 0; 8813 } 8814 lun->PRGeneration++; 8815 break; 8816 } 8817 8818 mtx_unlock(&lun->lun_lock); 8819} 8820 8821int 8822ctl_read_write(struct ctl_scsiio *ctsio) 8823{ 8824 struct ctl_lun *lun; 8825 struct ctl_lba_len_flags *lbalen; 8826 uint64_t lba; 8827 uint32_t num_blocks; 8828 int flags, retval; 8829 int isread; 8830 8831 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8832 8833 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8834 8835 flags = 0; 8836 retval = CTL_RETVAL_COMPLETE; 8837 8838 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8839 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8840 switch (ctsio->cdb[0]) { 8841 case READ_6: 8842 case WRITE_6: { 8843 struct scsi_rw_6 *cdb; 8844 8845 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8846 8847 lba = scsi_3btoul(cdb->addr); 8848 /* only 5 bits are valid in the most significant address byte */ 8849 lba &= 0x1fffff; 8850 num_blocks = cdb->length; 8851 /* 8852 * This is correct according to SBC-2. 8853 */ 8854 if (num_blocks == 0) 8855 num_blocks = 256; 8856 break; 8857 } 8858 case READ_10: 8859 case WRITE_10: { 8860 struct scsi_rw_10 *cdb; 8861 8862 cdb = (struct scsi_rw_10 *)ctsio->cdb; 8863 if (cdb->byte2 & SRW10_FUA) 8864 flags |= CTL_LLF_FUA; 8865 if (cdb->byte2 & SRW10_DPO) 8866 flags |= CTL_LLF_DPO; 8867 lba = scsi_4btoul(cdb->addr); 8868 num_blocks = scsi_2btoul(cdb->length); 8869 break; 8870 } 8871 case WRITE_VERIFY_10: { 8872 struct scsi_write_verify_10 *cdb; 8873 8874 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 8875 flags |= CTL_LLF_FUA; 8876 if (cdb->byte2 & SWV_DPO) 8877 flags |= CTL_LLF_DPO; 8878 lba = scsi_4btoul(cdb->addr); 8879 num_blocks = scsi_2btoul(cdb->length); 8880 break; 8881 } 8882 case READ_12: 8883 case WRITE_12: { 8884 struct scsi_rw_12 *cdb; 8885 8886 cdb = (struct scsi_rw_12 *)ctsio->cdb; 8887 if (cdb->byte2 & SRW12_FUA) 8888 flags |= CTL_LLF_FUA; 8889 if (cdb->byte2 & SRW12_DPO) 8890 flags |= CTL_LLF_DPO; 8891 lba = scsi_4btoul(cdb->addr); 8892 num_blocks = scsi_4btoul(cdb->length); 8893 break; 8894 } 8895 case WRITE_VERIFY_12: { 8896 struct scsi_write_verify_12 *cdb; 8897 8898 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 8899 flags |= CTL_LLF_FUA; 8900 if (cdb->byte2 & SWV_DPO) 8901 flags |= CTL_LLF_DPO; 8902 lba = scsi_4btoul(cdb->addr); 8903 num_blocks = scsi_4btoul(cdb->length); 8904 break; 8905 } 8906 case READ_16: 8907 case WRITE_16: { 8908 struct scsi_rw_16 *cdb; 8909 8910 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8911 if (cdb->byte2 & SRW12_FUA) 8912 flags |= CTL_LLF_FUA; 8913 if (cdb->byte2 & SRW12_DPO) 8914 flags |= CTL_LLF_DPO; 8915 lba = scsi_8btou64(cdb->addr); 8916 num_blocks = scsi_4btoul(cdb->length); 8917 break; 8918 } 8919 case WRITE_ATOMIC_16: { 8920 struct scsi_rw_16 *cdb; 8921 8922 if (lun->be_lun->atomicblock == 0) { 8923 ctl_set_invalid_opcode(ctsio); 8924 ctl_done((union ctl_io *)ctsio); 8925 return (CTL_RETVAL_COMPLETE); 8926 } 8927 8928 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8929 if (cdb->byte2 & SRW12_FUA) 8930 flags |= CTL_LLF_FUA; 8931 if (cdb->byte2 & SRW12_DPO) 8932 flags |= CTL_LLF_DPO; 8933 lba = scsi_8btou64(cdb->addr); 8934 num_blocks = scsi_4btoul(cdb->length); 8935 if (num_blocks > lun->be_lun->atomicblock) { 8936 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 8937 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 8938 /*bit*/ 0); 8939 ctl_done((union ctl_io *)ctsio); 8940 return (CTL_RETVAL_COMPLETE); 8941 } 8942 break; 8943 } 8944 case WRITE_VERIFY_16: { 8945 struct scsi_write_verify_16 *cdb; 8946 8947 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 8948 flags |= CTL_LLF_FUA; 8949 if (cdb->byte2 & SWV_DPO) 8950 flags |= CTL_LLF_DPO; 8951 lba = scsi_8btou64(cdb->addr); 8952 num_blocks = scsi_4btoul(cdb->length); 8953 break; 8954 } 8955 default: 8956 /* 8957 * We got a command we don't support. This shouldn't 8958 * happen, commands should be filtered out above us. 8959 */ 8960 ctl_set_invalid_opcode(ctsio); 8961 ctl_done((union ctl_io *)ctsio); 8962 8963 return (CTL_RETVAL_COMPLETE); 8964 break; /* NOTREACHED */ 8965 } 8966 8967 /* 8968 * The first check is to make sure we're in bounds, the second 8969 * check is to catch wrap-around problems. If the lba + num blocks 8970 * is less than the lba, then we've wrapped around and the block 8971 * range is invalid anyway. 8972 */ 8973 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8974 || ((lba + num_blocks) < lba)) { 8975 ctl_set_lba_out_of_range(ctsio); 8976 ctl_done((union ctl_io *)ctsio); 8977 return (CTL_RETVAL_COMPLETE); 8978 } 8979 8980 /* 8981 * According to SBC-3, a transfer length of 0 is not an error. 8982 * Note that this cannot happen with WRITE(6) or READ(6), since 0 8983 * translates to 256 blocks for those commands. 8984 */ 8985 if (num_blocks == 0) { 8986 ctl_set_success(ctsio); 8987 ctl_done((union ctl_io *)ctsio); 8988 return (CTL_RETVAL_COMPLETE); 8989 } 8990 8991 /* Set FUA and/or DPO if caches are disabled. */ 8992 if (isread) { 8993 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 8994 SCP_RCD) != 0) 8995 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 8996 } else { 8997 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 8998 SCP_WCE) == 0) 8999 flags |= CTL_LLF_FUA; 9000 } 9001 9002 lbalen = (struct ctl_lba_len_flags *) 9003 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9004 lbalen->lba = lba; 9005 lbalen->len = num_blocks; 9006 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 9007 9008 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9009 ctsio->kern_rel_offset = 0; 9010 9011 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 9012 9013 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9014 9015 return (retval); 9016} 9017 9018static int 9019ctl_cnw_cont(union ctl_io *io) 9020{ 9021 struct ctl_scsiio *ctsio; 9022 struct ctl_lun *lun; 9023 struct ctl_lba_len_flags *lbalen; 9024 int retval; 9025 9026 ctsio = &io->scsiio; 9027 ctsio->io_hdr.status = CTL_STATUS_NONE; 9028 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 9029 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9030 lbalen = (struct ctl_lba_len_flags *) 9031 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9032 lbalen->flags &= ~CTL_LLF_COMPARE; 9033 lbalen->flags |= CTL_LLF_WRITE; 9034 9035 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 9036 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9037 return (retval); 9038} 9039 9040int 9041ctl_cnw(struct ctl_scsiio *ctsio) 9042{ 9043 struct ctl_lun *lun; 9044 struct ctl_lba_len_flags *lbalen; 9045 uint64_t lba; 9046 uint32_t num_blocks; 9047 int flags, retval; 9048 9049 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9050 9051 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 9052 9053 flags = 0; 9054 retval = CTL_RETVAL_COMPLETE; 9055 9056 switch (ctsio->cdb[0]) { 9057 case COMPARE_AND_WRITE: { 9058 struct scsi_compare_and_write *cdb; 9059 9060 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 9061 if (cdb->byte2 & SRW10_FUA) 9062 flags |= CTL_LLF_FUA; 9063 if (cdb->byte2 & SRW10_DPO) 9064 flags |= CTL_LLF_DPO; 9065 lba = scsi_8btou64(cdb->addr); 9066 num_blocks = cdb->length; 9067 break; 9068 } 9069 default: 9070 /* 9071 * We got a command we don't support. This shouldn't 9072 * happen, commands should be filtered out above us. 9073 */ 9074 ctl_set_invalid_opcode(ctsio); 9075 ctl_done((union ctl_io *)ctsio); 9076 9077 return (CTL_RETVAL_COMPLETE); 9078 break; /* NOTREACHED */ 9079 } 9080 9081 /* 9082 * The first check is to make sure we're in bounds, the second 9083 * check is to catch wrap-around problems. If the lba + num blocks 9084 * is less than the lba, then we've wrapped around and the block 9085 * range is invalid anyway. 9086 */ 9087 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9088 || ((lba + num_blocks) < lba)) { 9089 ctl_set_lba_out_of_range(ctsio); 9090 ctl_done((union ctl_io *)ctsio); 9091 return (CTL_RETVAL_COMPLETE); 9092 } 9093 9094 /* 9095 * According to SBC-3, a transfer length of 0 is not an error. 9096 */ 9097 if (num_blocks == 0) { 9098 ctl_set_success(ctsio); 9099 ctl_done((union ctl_io *)ctsio); 9100 return (CTL_RETVAL_COMPLETE); 9101 } 9102 9103 /* Set FUA if write cache is disabled. */ 9104 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9105 SCP_WCE) == 0) 9106 flags |= CTL_LLF_FUA; 9107 9108 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 9109 ctsio->kern_rel_offset = 0; 9110 9111 /* 9112 * Set the IO_CONT flag, so that if this I/O gets passed to 9113 * ctl_data_submit_done(), it'll get passed back to 9114 * ctl_ctl_cnw_cont() for further processing. 9115 */ 9116 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 9117 ctsio->io_cont = ctl_cnw_cont; 9118 9119 lbalen = (struct ctl_lba_len_flags *) 9120 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9121 lbalen->lba = lba; 9122 lbalen->len = num_blocks; 9123 lbalen->flags = CTL_LLF_COMPARE | flags; 9124 9125 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 9126 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9127 return (retval); 9128} 9129 9130int 9131ctl_verify(struct ctl_scsiio *ctsio) 9132{ 9133 struct ctl_lun *lun; 9134 struct ctl_lba_len_flags *lbalen; 9135 uint64_t lba; 9136 uint32_t num_blocks; 9137 int bytchk, flags; 9138 int retval; 9139 9140 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9141 9142 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 9143 9144 bytchk = 0; 9145 flags = CTL_LLF_FUA; 9146 retval = CTL_RETVAL_COMPLETE; 9147 9148 switch (ctsio->cdb[0]) { 9149 case VERIFY_10: { 9150 struct scsi_verify_10 *cdb; 9151 9152 cdb = (struct scsi_verify_10 *)ctsio->cdb; 9153 if (cdb->byte2 & SVFY_BYTCHK) 9154 bytchk = 1; 9155 if (cdb->byte2 & SVFY_DPO) 9156 flags |= CTL_LLF_DPO; 9157 lba = scsi_4btoul(cdb->addr); 9158 num_blocks = scsi_2btoul(cdb->length); 9159 break; 9160 } 9161 case VERIFY_12: { 9162 struct scsi_verify_12 *cdb; 9163 9164 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9165 if (cdb->byte2 & SVFY_BYTCHK) 9166 bytchk = 1; 9167 if (cdb->byte2 & SVFY_DPO) 9168 flags |= CTL_LLF_DPO; 9169 lba = scsi_4btoul(cdb->addr); 9170 num_blocks = scsi_4btoul(cdb->length); 9171 break; 9172 } 9173 case VERIFY_16: { 9174 struct scsi_rw_16 *cdb; 9175 9176 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9177 if (cdb->byte2 & SVFY_BYTCHK) 9178 bytchk = 1; 9179 if (cdb->byte2 & SVFY_DPO) 9180 flags |= CTL_LLF_DPO; 9181 lba = scsi_8btou64(cdb->addr); 9182 num_blocks = scsi_4btoul(cdb->length); 9183 break; 9184 } 9185 default: 9186 /* 9187 * We got a command we don't support. This shouldn't 9188 * happen, commands should be filtered out above us. 9189 */ 9190 ctl_set_invalid_opcode(ctsio); 9191 ctl_done((union ctl_io *)ctsio); 9192 return (CTL_RETVAL_COMPLETE); 9193 } 9194 9195 /* 9196 * The first check is to make sure we're in bounds, the second 9197 * check is to catch wrap-around problems. If the lba + num blocks 9198 * is less than the lba, then we've wrapped around and the block 9199 * range is invalid anyway. 9200 */ 9201 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9202 || ((lba + num_blocks) < lba)) { 9203 ctl_set_lba_out_of_range(ctsio); 9204 ctl_done((union ctl_io *)ctsio); 9205 return (CTL_RETVAL_COMPLETE); 9206 } 9207 9208 /* 9209 * According to SBC-3, a transfer length of 0 is not an error. 9210 */ 9211 if (num_blocks == 0) { 9212 ctl_set_success(ctsio); 9213 ctl_done((union ctl_io *)ctsio); 9214 return (CTL_RETVAL_COMPLETE); 9215 } 9216 9217 lbalen = (struct ctl_lba_len_flags *) 9218 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9219 lbalen->lba = lba; 9220 lbalen->len = num_blocks; 9221 if (bytchk) { 9222 lbalen->flags = CTL_LLF_COMPARE | flags; 9223 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9224 } else { 9225 lbalen->flags = CTL_LLF_VERIFY | flags; 9226 ctsio->kern_total_len = 0; 9227 } 9228 ctsio->kern_rel_offset = 0; 9229 9230 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9231 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9232 return (retval); 9233} 9234 9235int 9236ctl_report_luns(struct ctl_scsiio *ctsio) 9237{ 9238 struct scsi_report_luns *cdb; 9239 struct scsi_report_luns_data *lun_data; 9240 struct ctl_lun *lun, *request_lun; 9241 int num_luns, retval; 9242 uint32_t alloc_len, lun_datalen; 9243 int num_filled, well_known; 9244 uint32_t initidx, targ_lun_id, lun_id; 9245 9246 retval = CTL_RETVAL_COMPLETE; 9247 well_known = 0; 9248 9249 cdb = (struct scsi_report_luns *)ctsio->cdb; 9250 9251 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9252 9253 mtx_lock(&control_softc->ctl_lock); 9254 num_luns = control_softc->num_luns; 9255 mtx_unlock(&control_softc->ctl_lock); 9256 9257 switch (cdb->select_report) { 9258 case RPL_REPORT_DEFAULT: 9259 case RPL_REPORT_ALL: 9260 break; 9261 case RPL_REPORT_WELLKNOWN: 9262 well_known = 1; 9263 num_luns = 0; 9264 break; 9265 default: 9266 ctl_set_invalid_field(ctsio, 9267 /*sks_valid*/ 1, 9268 /*command*/ 1, 9269 /*field*/ 2, 9270 /*bit_valid*/ 0, 9271 /*bit*/ 0); 9272 ctl_done((union ctl_io *)ctsio); 9273 return (retval); 9274 break; /* NOTREACHED */ 9275 } 9276 9277 alloc_len = scsi_4btoul(cdb->length); 9278 /* 9279 * The initiator has to allocate at least 16 bytes for this request, 9280 * so he can at least get the header and the first LUN. Otherwise 9281 * we reject the request (per SPC-3 rev 14, section 6.21). 9282 */ 9283 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9284 sizeof(struct scsi_report_luns_lundata))) { 9285 ctl_set_invalid_field(ctsio, 9286 /*sks_valid*/ 1, 9287 /*command*/ 1, 9288 /*field*/ 6, 9289 /*bit_valid*/ 0, 9290 /*bit*/ 0); 9291 ctl_done((union ctl_io *)ctsio); 9292 return (retval); 9293 } 9294 9295 request_lun = (struct ctl_lun *) 9296 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9297 9298 lun_datalen = sizeof(*lun_data) + 9299 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9300 9301 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9302 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9303 ctsio->kern_sg_entries = 0; 9304 9305 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9306 9307 mtx_lock(&control_softc->ctl_lock); 9308 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9309 lun_id = ctl_map_lun(ctsio->io_hdr.nexus.targ_port, targ_lun_id); 9310 if (lun_id >= CTL_MAX_LUNS) 9311 continue; 9312 lun = control_softc->ctl_luns[lun_id]; 9313 if (lun == NULL) 9314 continue; 9315 9316 if (targ_lun_id <= 0xff) { 9317 /* 9318 * Peripheral addressing method, bus number 0. 9319 */ 9320 lun_data->luns[num_filled].lundata[0] = 9321 RPL_LUNDATA_ATYP_PERIPH; 9322 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9323 num_filled++; 9324 } else if (targ_lun_id <= 0x3fff) { 9325 /* 9326 * Flat addressing method. 9327 */ 9328 lun_data->luns[num_filled].lundata[0] = 9329 RPL_LUNDATA_ATYP_FLAT | (targ_lun_id >> 8); 9330 lun_data->luns[num_filled].lundata[1] = 9331 (targ_lun_id & 0xff); 9332 num_filled++; 9333 } else if (targ_lun_id <= 0xffffff) { 9334 /* 9335 * Extended flat addressing method. 9336 */ 9337 lun_data->luns[num_filled].lundata[0] = 9338 RPL_LUNDATA_ATYP_EXTLUN | 0x12; 9339 scsi_ulto3b(targ_lun_id, 9340 &lun_data->luns[num_filled].lundata[1]); 9341 num_filled++; 9342 } else { 9343 printf("ctl_report_luns: bogus LUN number %jd, " 9344 "skipping\n", (intmax_t)targ_lun_id); 9345 } 9346 /* 9347 * According to SPC-3, rev 14 section 6.21: 9348 * 9349 * "The execution of a REPORT LUNS command to any valid and 9350 * installed logical unit shall clear the REPORTED LUNS DATA 9351 * HAS CHANGED unit attention condition for all logical 9352 * units of that target with respect to the requesting 9353 * initiator. A valid and installed logical unit is one 9354 * having a PERIPHERAL QUALIFIER of 000b in the standard 9355 * INQUIRY data (see 6.4.2)." 9356 * 9357 * If request_lun is NULL, the LUN this report luns command 9358 * was issued to is either disabled or doesn't exist. In that 9359 * case, we shouldn't clear any pending lun change unit 9360 * attention. 9361 */ 9362 if (request_lun != NULL) { 9363 mtx_lock(&lun->lun_lock); 9364 lun->pending_ua[initidx] &= ~CTL_UA_LUN_CHANGE; 9365 mtx_unlock(&lun->lun_lock); 9366 } 9367 } 9368 mtx_unlock(&control_softc->ctl_lock); 9369 9370 /* 9371 * It's quite possible that we've returned fewer LUNs than we allocated 9372 * space for. Trim it. 9373 */ 9374 lun_datalen = sizeof(*lun_data) + 9375 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9376 9377 if (lun_datalen < alloc_len) { 9378 ctsio->residual = alloc_len - lun_datalen; 9379 ctsio->kern_data_len = lun_datalen; 9380 ctsio->kern_total_len = lun_datalen; 9381 } else { 9382 ctsio->residual = 0; 9383 ctsio->kern_data_len = alloc_len; 9384 ctsio->kern_total_len = alloc_len; 9385 } 9386 ctsio->kern_data_resid = 0; 9387 ctsio->kern_rel_offset = 0; 9388 ctsio->kern_sg_entries = 0; 9389 9390 /* 9391 * We set this to the actual data length, regardless of how much 9392 * space we actually have to return results. If the user looks at 9393 * this value, he'll know whether or not he allocated enough space 9394 * and reissue the command if necessary. We don't support well 9395 * known logical units, so if the user asks for that, return none. 9396 */ 9397 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9398 9399 /* 9400 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9401 * this request. 9402 */ 9403 ctl_set_success(ctsio); 9404 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9405 ctsio->be_move_done = ctl_config_move_done; 9406 ctl_datamove((union ctl_io *)ctsio); 9407 return (retval); 9408} 9409 9410int 9411ctl_request_sense(struct ctl_scsiio *ctsio) 9412{ 9413 struct scsi_request_sense *cdb; 9414 struct scsi_sense_data *sense_ptr; 9415 struct ctl_lun *lun; 9416 uint32_t initidx; 9417 int have_error; 9418 scsi_sense_data_type sense_format; 9419 9420 cdb = (struct scsi_request_sense *)ctsio->cdb; 9421 9422 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9423 9424 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9425 9426 /* 9427 * Determine which sense format the user wants. 9428 */ 9429 if (cdb->byte2 & SRS_DESC) 9430 sense_format = SSD_TYPE_DESC; 9431 else 9432 sense_format = SSD_TYPE_FIXED; 9433 9434 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9435 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9436 ctsio->kern_sg_entries = 0; 9437 9438 /* 9439 * struct scsi_sense_data, which is currently set to 256 bytes, is 9440 * larger than the largest allowed value for the length field in the 9441 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9442 */ 9443 ctsio->residual = 0; 9444 ctsio->kern_data_len = cdb->length; 9445 ctsio->kern_total_len = cdb->length; 9446 9447 ctsio->kern_data_resid = 0; 9448 ctsio->kern_rel_offset = 0; 9449 ctsio->kern_sg_entries = 0; 9450 9451 /* 9452 * If we don't have a LUN, we don't have any pending sense. 9453 */ 9454 if (lun == NULL) 9455 goto no_sense; 9456 9457 have_error = 0; 9458 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9459 /* 9460 * Check for pending sense, and then for pending unit attentions. 9461 * Pending sense gets returned first, then pending unit attentions. 9462 */ 9463 mtx_lock(&lun->lun_lock); 9464#ifdef CTL_WITH_CA 9465 if (ctl_is_set(lun->have_ca, initidx)) { 9466 scsi_sense_data_type stored_format; 9467 9468 /* 9469 * Check to see which sense format was used for the stored 9470 * sense data. 9471 */ 9472 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9473 9474 /* 9475 * If the user requested a different sense format than the 9476 * one we stored, then we need to convert it to the other 9477 * format. If we're going from descriptor to fixed format 9478 * sense data, we may lose things in translation, depending 9479 * on what options were used. 9480 * 9481 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9482 * for some reason we'll just copy it out as-is. 9483 */ 9484 if ((stored_format == SSD_TYPE_FIXED) 9485 && (sense_format == SSD_TYPE_DESC)) 9486 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9487 &lun->pending_sense[initidx], 9488 (struct scsi_sense_data_desc *)sense_ptr); 9489 else if ((stored_format == SSD_TYPE_DESC) 9490 && (sense_format == SSD_TYPE_FIXED)) 9491 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9492 &lun->pending_sense[initidx], 9493 (struct scsi_sense_data_fixed *)sense_ptr); 9494 else 9495 memcpy(sense_ptr, &lun->pending_sense[initidx], 9496 ctl_min(sizeof(*sense_ptr), 9497 sizeof(lun->pending_sense[initidx]))); 9498 9499 ctl_clear_mask(lun->have_ca, initidx); 9500 have_error = 1; 9501 } else 9502#endif 9503 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 9504 ctl_ua_type ua_type; 9505 9506 ua_type = ctl_build_ua(&lun->pending_ua[initidx], 9507 sense_ptr, sense_format); 9508 if (ua_type != CTL_UA_NONE) 9509 have_error = 1; 9510 } 9511 mtx_unlock(&lun->lun_lock); 9512 9513 /* 9514 * We already have a pending error, return it. 9515 */ 9516 if (have_error != 0) { 9517 /* 9518 * We report the SCSI status as OK, since the status of the 9519 * request sense command itself is OK. 9520 * We report 0 for the sense length, because we aren't doing 9521 * autosense in this case. We're reporting sense as 9522 * parameter data. 9523 */ 9524 ctl_set_success(ctsio); 9525 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9526 ctsio->be_move_done = ctl_config_move_done; 9527 ctl_datamove((union ctl_io *)ctsio); 9528 return (CTL_RETVAL_COMPLETE); 9529 } 9530 9531no_sense: 9532 9533 /* 9534 * No sense information to report, so we report that everything is 9535 * okay. 9536 */ 9537 ctl_set_sense_data(sense_ptr, 9538 lun, 9539 sense_format, 9540 /*current_error*/ 1, 9541 /*sense_key*/ SSD_KEY_NO_SENSE, 9542 /*asc*/ 0x00, 9543 /*ascq*/ 0x00, 9544 SSD_ELEM_NONE); 9545 9546 /* 9547 * We report 0 for the sense length, because we aren't doing 9548 * autosense in this case. We're reporting sense as parameter data. 9549 */ 9550 ctl_set_success(ctsio); 9551 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9552 ctsio->be_move_done = ctl_config_move_done; 9553 ctl_datamove((union ctl_io *)ctsio); 9554 return (CTL_RETVAL_COMPLETE); 9555} 9556 9557int 9558ctl_tur(struct ctl_scsiio *ctsio) 9559{ 9560 9561 CTL_DEBUG_PRINT(("ctl_tur\n")); 9562 9563 ctl_set_success(ctsio); 9564 ctl_done((union ctl_io *)ctsio); 9565 9566 return (CTL_RETVAL_COMPLETE); 9567} 9568 9569#ifdef notyet 9570static int 9571ctl_cmddt_inquiry(struct ctl_scsiio *ctsio) 9572{ 9573 9574} 9575#endif 9576 9577static int 9578ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9579{ 9580 struct scsi_vpd_supported_pages *pages; 9581 int sup_page_size; 9582 struct ctl_lun *lun; 9583 9584 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9585 9586 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9587 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9588 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9589 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9590 ctsio->kern_sg_entries = 0; 9591 9592 if (sup_page_size < alloc_len) { 9593 ctsio->residual = alloc_len - sup_page_size; 9594 ctsio->kern_data_len = sup_page_size; 9595 ctsio->kern_total_len = sup_page_size; 9596 } else { 9597 ctsio->residual = 0; 9598 ctsio->kern_data_len = alloc_len; 9599 ctsio->kern_total_len = alloc_len; 9600 } 9601 ctsio->kern_data_resid = 0; 9602 ctsio->kern_rel_offset = 0; 9603 ctsio->kern_sg_entries = 0; 9604 9605 /* 9606 * The control device is always connected. The disk device, on the 9607 * other hand, may not be online all the time. Need to change this 9608 * to figure out whether the disk device is actually online or not. 9609 */ 9610 if (lun != NULL) 9611 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9612 lun->be_lun->lun_type; 9613 else 9614 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9615 9616 pages->length = SCSI_EVPD_NUM_SUPPORTED_PAGES; 9617 /* Supported VPD pages */ 9618 pages->page_list[0] = SVPD_SUPPORTED_PAGES; 9619 /* Serial Number */ 9620 pages->page_list[1] = SVPD_UNIT_SERIAL_NUMBER; 9621 /* Device Identification */ 9622 pages->page_list[2] = SVPD_DEVICE_ID; 9623 /* Extended INQUIRY Data */ 9624 pages->page_list[3] = SVPD_EXTENDED_INQUIRY_DATA; 9625 /* Mode Page Policy */ 9626 pages->page_list[4] = SVPD_MODE_PAGE_POLICY; 9627 /* SCSI Ports */ 9628 pages->page_list[5] = SVPD_SCSI_PORTS; 9629 /* Third-party Copy */ 9630 pages->page_list[6] = SVPD_SCSI_TPC; 9631 /* Block limits */ 9632 pages->page_list[7] = SVPD_BLOCK_LIMITS; 9633 /* Block Device Characteristics */ 9634 pages->page_list[8] = SVPD_BDC; 9635 /* Logical Block Provisioning */ 9636 pages->page_list[9] = SVPD_LBP; 9637 9638 ctl_set_success(ctsio); 9639 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9640 ctsio->be_move_done = ctl_config_move_done; 9641 ctl_datamove((union ctl_io *)ctsio); 9642 return (CTL_RETVAL_COMPLETE); 9643} 9644 9645static int 9646ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9647{ 9648 struct scsi_vpd_unit_serial_number *sn_ptr; 9649 struct ctl_lun *lun; 9650 int data_len; 9651 9652 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9653 9654 data_len = 4 + CTL_SN_LEN; 9655 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9656 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9657 if (data_len < alloc_len) { 9658 ctsio->residual = alloc_len - data_len; 9659 ctsio->kern_data_len = data_len; 9660 ctsio->kern_total_len = data_len; 9661 } else { 9662 ctsio->residual = 0; 9663 ctsio->kern_data_len = alloc_len; 9664 ctsio->kern_total_len = alloc_len; 9665 } 9666 ctsio->kern_data_resid = 0; 9667 ctsio->kern_rel_offset = 0; 9668 ctsio->kern_sg_entries = 0; 9669 9670 /* 9671 * The control device is always connected. The disk device, on the 9672 * other hand, may not be online all the time. Need to change this 9673 * to figure out whether the disk device is actually online or not. 9674 */ 9675 if (lun != NULL) 9676 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9677 lun->be_lun->lun_type; 9678 else 9679 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9680 9681 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9682 sn_ptr->length = CTL_SN_LEN; 9683 /* 9684 * If we don't have a LUN, we just leave the serial number as 9685 * all spaces. 9686 */ 9687 if (lun != NULL) { 9688 strncpy((char *)sn_ptr->serial_num, 9689 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9690 } else 9691 memset(sn_ptr->serial_num, 0x20, CTL_SN_LEN); 9692 9693 ctl_set_success(ctsio); 9694 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9695 ctsio->be_move_done = ctl_config_move_done; 9696 ctl_datamove((union ctl_io *)ctsio); 9697 return (CTL_RETVAL_COMPLETE); 9698} 9699 9700 9701static int 9702ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9703{ 9704 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9705 struct ctl_lun *lun; 9706 int data_len; 9707 9708 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9709 9710 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9711 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9712 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9713 ctsio->kern_sg_entries = 0; 9714 9715 if (data_len < alloc_len) { 9716 ctsio->residual = alloc_len - data_len; 9717 ctsio->kern_data_len = data_len; 9718 ctsio->kern_total_len = data_len; 9719 } else { 9720 ctsio->residual = 0; 9721 ctsio->kern_data_len = alloc_len; 9722 ctsio->kern_total_len = alloc_len; 9723 } 9724 ctsio->kern_data_resid = 0; 9725 ctsio->kern_rel_offset = 0; 9726 ctsio->kern_sg_entries = 0; 9727 9728 /* 9729 * The control device is always connected. The disk device, on the 9730 * other hand, may not be online all the time. 9731 */ 9732 if (lun != NULL) 9733 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9734 lun->be_lun->lun_type; 9735 else 9736 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9737 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9738 eid_ptr->page_length = data_len - 4; 9739 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9740 eid_ptr->flags3 = SVPD_EID_V_SUP; 9741 9742 ctl_set_success(ctsio); 9743 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9744 ctsio->be_move_done = ctl_config_move_done; 9745 ctl_datamove((union ctl_io *)ctsio); 9746 return (CTL_RETVAL_COMPLETE); 9747} 9748 9749static int 9750ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9751{ 9752 struct scsi_vpd_mode_page_policy *mpp_ptr; 9753 struct ctl_lun *lun; 9754 int data_len; 9755 9756 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9757 9758 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9759 sizeof(struct scsi_vpd_mode_page_policy_descr); 9760 9761 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9762 mpp_ptr = (struct scsi_vpd_mode_page_policy *)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 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9784 lun->be_lun->lun_type; 9785 else 9786 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9787 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9788 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9789 mpp_ptr->descr[0].page_code = 0x3f; 9790 mpp_ptr->descr[0].subpage_code = 0xff; 9791 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9792 9793 ctl_set_success(ctsio); 9794 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9795 ctsio->be_move_done = ctl_config_move_done; 9796 ctl_datamove((union ctl_io *)ctsio); 9797 return (CTL_RETVAL_COMPLETE); 9798} 9799 9800static int 9801ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9802{ 9803 struct scsi_vpd_device_id *devid_ptr; 9804 struct scsi_vpd_id_descriptor *desc; 9805 struct ctl_softc *ctl_softc; 9806 struct ctl_lun *lun; 9807 struct ctl_port *port; 9808 int data_len; 9809 uint8_t proto; 9810 9811 ctl_softc = control_softc; 9812 9813 port = ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]; 9814 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9815 9816 data_len = sizeof(struct scsi_vpd_device_id) + 9817 sizeof(struct scsi_vpd_id_descriptor) + 9818 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9819 sizeof(struct scsi_vpd_id_descriptor) + 9820 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9821 if (lun && lun->lun_devid) 9822 data_len += lun->lun_devid->len; 9823 if (port->port_devid) 9824 data_len += port->port_devid->len; 9825 if (port->target_devid) 9826 data_len += port->target_devid->len; 9827 9828 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9829 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9830 ctsio->kern_sg_entries = 0; 9831 9832 if (data_len < alloc_len) { 9833 ctsio->residual = alloc_len - data_len; 9834 ctsio->kern_data_len = data_len; 9835 ctsio->kern_total_len = data_len; 9836 } else { 9837 ctsio->residual = 0; 9838 ctsio->kern_data_len = alloc_len; 9839 ctsio->kern_total_len = alloc_len; 9840 } 9841 ctsio->kern_data_resid = 0; 9842 ctsio->kern_rel_offset = 0; 9843 ctsio->kern_sg_entries = 0; 9844 9845 /* 9846 * The control device is always connected. The disk device, on the 9847 * other hand, may not be online all the time. 9848 */ 9849 if (lun != NULL) 9850 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9851 lun->be_lun->lun_type; 9852 else 9853 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9854 devid_ptr->page_code = SVPD_DEVICE_ID; 9855 scsi_ulto2b(data_len - 4, devid_ptr->length); 9856 9857 if (port->port_type == CTL_PORT_FC) 9858 proto = SCSI_PROTO_FC << 4; 9859 else if (port->port_type == CTL_PORT_ISCSI) 9860 proto = SCSI_PROTO_ISCSI << 4; 9861 else 9862 proto = SCSI_PROTO_SPI << 4; 9863 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9864 9865 /* 9866 * We're using a LUN association here. i.e., this device ID is a 9867 * per-LUN identifier. 9868 */ 9869 if (lun && lun->lun_devid) { 9870 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9871 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9872 lun->lun_devid->len); 9873 } 9874 9875 /* 9876 * This is for the WWPN which is a port association. 9877 */ 9878 if (port->port_devid) { 9879 memcpy(desc, port->port_devid->data, port->port_devid->len); 9880 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9881 port->port_devid->len); 9882 } 9883 9884 /* 9885 * This is for the Relative Target Port(type 4h) identifier 9886 */ 9887 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9888 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9889 SVPD_ID_TYPE_RELTARG; 9890 desc->length = 4; 9891 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9892 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9893 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9894 9895 /* 9896 * This is for the Target Port Group(type 5h) identifier 9897 */ 9898 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9899 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9900 SVPD_ID_TYPE_TPORTGRP; 9901 desc->length = 4; 9902 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS + 1, 9903 &desc->identifier[2]); 9904 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9905 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9906 9907 /* 9908 * This is for the Target identifier 9909 */ 9910 if (port->target_devid) { 9911 memcpy(desc, port->target_devid->data, port->target_devid->len); 9912 } 9913 9914 ctl_set_success(ctsio); 9915 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9916 ctsio->be_move_done = ctl_config_move_done; 9917 ctl_datamove((union ctl_io *)ctsio); 9918 return (CTL_RETVAL_COMPLETE); 9919} 9920 9921static int 9922ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 9923{ 9924 struct ctl_softc *softc = control_softc; 9925 struct scsi_vpd_scsi_ports *sp; 9926 struct scsi_vpd_port_designation *pd; 9927 struct scsi_vpd_port_designation_cont *pdc; 9928 struct ctl_lun *lun; 9929 struct ctl_port *port; 9930 int data_len, num_target_ports, iid_len, id_len, g, pg, p; 9931 int num_target_port_groups; 9932 9933 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9934 9935 if (softc->is_single) 9936 num_target_port_groups = 1; 9937 else 9938 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 9939 num_target_ports = 0; 9940 iid_len = 0; 9941 id_len = 0; 9942 mtx_lock(&softc->ctl_lock); 9943 STAILQ_FOREACH(port, &softc->port_list, links) { 9944 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9945 continue; 9946 if (lun != NULL && 9947 ctl_map_lun_back(port->targ_port, lun->lun) >= 9948 CTL_MAX_LUNS) 9949 continue; 9950 num_target_ports++; 9951 if (port->init_devid) 9952 iid_len += port->init_devid->len; 9953 if (port->port_devid) 9954 id_len += port->port_devid->len; 9955 } 9956 mtx_unlock(&softc->ctl_lock); 9957 9958 data_len = sizeof(struct scsi_vpd_scsi_ports) + num_target_port_groups * 9959 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 9960 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 9961 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9962 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 9963 ctsio->kern_sg_entries = 0; 9964 9965 if (data_len < alloc_len) { 9966 ctsio->residual = alloc_len - data_len; 9967 ctsio->kern_data_len = data_len; 9968 ctsio->kern_total_len = data_len; 9969 } else { 9970 ctsio->residual = 0; 9971 ctsio->kern_data_len = alloc_len; 9972 ctsio->kern_total_len = alloc_len; 9973 } 9974 ctsio->kern_data_resid = 0; 9975 ctsio->kern_rel_offset = 0; 9976 ctsio->kern_sg_entries = 0; 9977 9978 /* 9979 * The control device is always connected. The disk device, on the 9980 * other hand, may not be online all the time. Need to change this 9981 * to figure out whether the disk device is actually online or not. 9982 */ 9983 if (lun != NULL) 9984 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 9985 lun->be_lun->lun_type; 9986 else 9987 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9988 9989 sp->page_code = SVPD_SCSI_PORTS; 9990 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 9991 sp->page_length); 9992 pd = &sp->design[0]; 9993 9994 mtx_lock(&softc->ctl_lock); 9995 pg = softc->port_offset / CTL_MAX_PORTS; 9996 for (g = 0; g < num_target_port_groups; g++) { 9997 STAILQ_FOREACH(port, &softc->port_list, links) { 9998 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9999 continue; 10000 if (lun != NULL && 10001 ctl_map_lun_back(port->targ_port, lun->lun) >= 10002 CTL_MAX_LUNS) 10003 continue; 10004 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 10005 scsi_ulto2b(p, pd->relative_port_id); 10006 if (port->init_devid && g == pg) { 10007 iid_len = port->init_devid->len; 10008 memcpy(pd->initiator_transportid, 10009 port->init_devid->data, port->init_devid->len); 10010 } else 10011 iid_len = 0; 10012 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 10013 pdc = (struct scsi_vpd_port_designation_cont *) 10014 (&pd->initiator_transportid[iid_len]); 10015 if (port->port_devid && g == pg) { 10016 id_len = port->port_devid->len; 10017 memcpy(pdc->target_port_descriptors, 10018 port->port_devid->data, port->port_devid->len); 10019 } else 10020 id_len = 0; 10021 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 10022 pd = (struct scsi_vpd_port_designation *) 10023 ((uint8_t *)pdc->target_port_descriptors + id_len); 10024 } 10025 } 10026 mtx_unlock(&softc->ctl_lock); 10027 10028 ctl_set_success(ctsio); 10029 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10030 ctsio->be_move_done = ctl_config_move_done; 10031 ctl_datamove((union ctl_io *)ctsio); 10032 return (CTL_RETVAL_COMPLETE); 10033} 10034 10035static int 10036ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 10037{ 10038 struct scsi_vpd_block_limits *bl_ptr; 10039 struct ctl_lun *lun; 10040 int bs; 10041 10042 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10043 10044 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 10045 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 10046 ctsio->kern_sg_entries = 0; 10047 10048 if (sizeof(*bl_ptr) < alloc_len) { 10049 ctsio->residual = alloc_len - sizeof(*bl_ptr); 10050 ctsio->kern_data_len = sizeof(*bl_ptr); 10051 ctsio->kern_total_len = sizeof(*bl_ptr); 10052 } else { 10053 ctsio->residual = 0; 10054 ctsio->kern_data_len = alloc_len; 10055 ctsio->kern_total_len = alloc_len; 10056 } 10057 ctsio->kern_data_resid = 0; 10058 ctsio->kern_rel_offset = 0; 10059 ctsio->kern_sg_entries = 0; 10060 10061 /* 10062 * The control device is always connected. The disk device, on the 10063 * other hand, may not be online all the time. Need to change this 10064 * to figure out whether the disk device is actually online or not. 10065 */ 10066 if (lun != NULL) 10067 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10068 lun->be_lun->lun_type; 10069 else 10070 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10071 10072 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 10073 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 10074 bl_ptr->max_cmp_write_len = 0xff; 10075 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 10076 if (lun != NULL) { 10077 bs = lun->be_lun->blocksize; 10078 scsi_ulto4b(MAXPHYS / bs, bl_ptr->opt_txfer_len); 10079 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10080 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 10081 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 10082 if (lun->be_lun->pblockexp != 0) { 10083 scsi_ulto4b((1 << lun->be_lun->pblockexp), 10084 bl_ptr->opt_unmap_grain); 10085 scsi_ulto4b(0x80000000 | lun->be_lun->pblockoff, 10086 bl_ptr->unmap_grain_align); 10087 } 10088 } 10089 scsi_ulto4b(lun->be_lun->atomicblock, 10090 bl_ptr->max_atomic_transfer_length); 10091 scsi_ulto4b(0, bl_ptr->atomic_alignment); 10092 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 10093 } 10094 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 10095 10096 ctl_set_success(ctsio); 10097 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10098 ctsio->be_move_done = ctl_config_move_done; 10099 ctl_datamove((union ctl_io *)ctsio); 10100 return (CTL_RETVAL_COMPLETE); 10101} 10102 10103static int 10104ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 10105{ 10106 struct scsi_vpd_block_device_characteristics *bdc_ptr; 10107 struct ctl_lun *lun; 10108 const char *value; 10109 u_int i; 10110 10111 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10112 10113 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 10114 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 10115 ctsio->kern_sg_entries = 0; 10116 10117 if (sizeof(*bdc_ptr) < alloc_len) { 10118 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 10119 ctsio->kern_data_len = sizeof(*bdc_ptr); 10120 ctsio->kern_total_len = sizeof(*bdc_ptr); 10121 } else { 10122 ctsio->residual = 0; 10123 ctsio->kern_data_len = alloc_len; 10124 ctsio->kern_total_len = alloc_len; 10125 } 10126 ctsio->kern_data_resid = 0; 10127 ctsio->kern_rel_offset = 0; 10128 ctsio->kern_sg_entries = 0; 10129 10130 /* 10131 * The control device is always connected. The disk device, on the 10132 * other hand, may not be online all the time. Need to change this 10133 * to figure out whether the disk device is actually online or not. 10134 */ 10135 if (lun != NULL) 10136 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10137 lun->be_lun->lun_type; 10138 else 10139 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10140 bdc_ptr->page_code = SVPD_BDC; 10141 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 10142 if (lun != NULL && 10143 (value = ctl_get_opt(&lun->be_lun->options, "rpm")) != NULL) 10144 i = strtol(value, NULL, 0); 10145 else 10146 i = CTL_DEFAULT_ROTATION_RATE; 10147 scsi_ulto2b(i, bdc_ptr->medium_rotation_rate); 10148 if (lun != NULL && 10149 (value = ctl_get_opt(&lun->be_lun->options, "formfactor")) != NULL) 10150 i = strtol(value, NULL, 0); 10151 else 10152 i = 0; 10153 bdc_ptr->wab_wac_ff = (i & 0x0f); 10154 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 10155 10156 ctl_set_success(ctsio); 10157 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10158 ctsio->be_move_done = ctl_config_move_done; 10159 ctl_datamove((union ctl_io *)ctsio); 10160 return (CTL_RETVAL_COMPLETE); 10161} 10162 10163static int 10164ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10165{ 10166 struct scsi_vpd_logical_block_prov *lbp_ptr; 10167 struct ctl_lun *lun; 10168 10169 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10170 10171 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10172 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10173 ctsio->kern_sg_entries = 0; 10174 10175 if (sizeof(*lbp_ptr) < alloc_len) { 10176 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10177 ctsio->kern_data_len = sizeof(*lbp_ptr); 10178 ctsio->kern_total_len = sizeof(*lbp_ptr); 10179 } else { 10180 ctsio->residual = 0; 10181 ctsio->kern_data_len = alloc_len; 10182 ctsio->kern_total_len = alloc_len; 10183 } 10184 ctsio->kern_data_resid = 0; 10185 ctsio->kern_rel_offset = 0; 10186 ctsio->kern_sg_entries = 0; 10187 10188 /* 10189 * The control device is always connected. The disk device, on the 10190 * other hand, may not be online all the time. Need to change this 10191 * to figure out whether the disk device is actually online or not. 10192 */ 10193 if (lun != NULL) 10194 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10195 lun->be_lun->lun_type; 10196 else 10197 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10198 10199 lbp_ptr->page_code = SVPD_LBP; 10200 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10201 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10202 lbp_ptr->threshold_exponent = CTL_LBP_EXPONENT; 10203 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10204 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10205 lbp_ptr->prov_type = SVPD_LBP_THIN; 10206 } 10207 10208 ctl_set_success(ctsio); 10209 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10210 ctsio->be_move_done = ctl_config_move_done; 10211 ctl_datamove((union ctl_io *)ctsio); 10212 return (CTL_RETVAL_COMPLETE); 10213} 10214 10215static int 10216ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10217{ 10218 struct scsi_inquiry *cdb; 10219 int alloc_len, retval; 10220 10221 cdb = (struct scsi_inquiry *)ctsio->cdb; 10222 10223 retval = CTL_RETVAL_COMPLETE; 10224 10225 alloc_len = scsi_2btoul(cdb->length); 10226 10227 switch (cdb->page_code) { 10228 case SVPD_SUPPORTED_PAGES: 10229 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10230 break; 10231 case SVPD_UNIT_SERIAL_NUMBER: 10232 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10233 break; 10234 case SVPD_DEVICE_ID: 10235 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10236 break; 10237 case SVPD_EXTENDED_INQUIRY_DATA: 10238 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10239 break; 10240 case SVPD_MODE_PAGE_POLICY: 10241 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10242 break; 10243 case SVPD_SCSI_PORTS: 10244 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10245 break; 10246 case SVPD_SCSI_TPC: 10247 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10248 break; 10249 case SVPD_BLOCK_LIMITS: 10250 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10251 break; 10252 case SVPD_BDC: 10253 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10254 break; 10255 case SVPD_LBP: 10256 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10257 break; 10258 default: 10259 ctl_set_invalid_field(ctsio, 10260 /*sks_valid*/ 1, 10261 /*command*/ 1, 10262 /*field*/ 2, 10263 /*bit_valid*/ 0, 10264 /*bit*/ 0); 10265 ctl_done((union ctl_io *)ctsio); 10266 retval = CTL_RETVAL_COMPLETE; 10267 break; 10268 } 10269 10270 return (retval); 10271} 10272 10273static int 10274ctl_inquiry_std(struct ctl_scsiio *ctsio) 10275{ 10276 struct scsi_inquiry_data *inq_ptr; 10277 struct scsi_inquiry *cdb; 10278 struct ctl_softc *ctl_softc; 10279 struct ctl_lun *lun; 10280 char *val; 10281 uint32_t alloc_len, data_len; 10282 ctl_port_type port_type; 10283 10284 ctl_softc = control_softc; 10285 10286 /* 10287 * Figure out whether we're talking to a Fibre Channel port or not. 10288 * We treat the ioctl front end, and any SCSI adapters, as packetized 10289 * SCSI front ends. 10290 */ 10291 port_type = ctl_softc->ctl_ports[ 10292 ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]->port_type; 10293 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10294 port_type = CTL_PORT_SCSI; 10295 10296 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10297 cdb = (struct scsi_inquiry *)ctsio->cdb; 10298 alloc_len = scsi_2btoul(cdb->length); 10299 10300 /* 10301 * We malloc the full inquiry data size here and fill it 10302 * in. If the user only asks for less, we'll give him 10303 * that much. 10304 */ 10305 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10306 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10307 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10308 ctsio->kern_sg_entries = 0; 10309 ctsio->kern_data_resid = 0; 10310 ctsio->kern_rel_offset = 0; 10311 10312 if (data_len < alloc_len) { 10313 ctsio->residual = alloc_len - data_len; 10314 ctsio->kern_data_len = data_len; 10315 ctsio->kern_total_len = data_len; 10316 } else { 10317 ctsio->residual = 0; 10318 ctsio->kern_data_len = alloc_len; 10319 ctsio->kern_total_len = alloc_len; 10320 } 10321 10322 /* 10323 * If we have a LUN configured, report it as connected. Otherwise, 10324 * report that it is offline or no device is supported, depending 10325 * on the value of inquiry_pq_no_lun. 10326 * 10327 * According to the spec (SPC-4 r34), the peripheral qualifier 10328 * SID_QUAL_LU_OFFLINE (001b) is used in the following scenario: 10329 * 10330 * "A peripheral device having the specified peripheral device type 10331 * is not connected to this logical unit. However, the device 10332 * server is capable of supporting the specified peripheral device 10333 * type on this logical unit." 10334 * 10335 * According to the same spec, the peripheral qualifier 10336 * SID_QUAL_BAD_LU (011b) is used in this scenario: 10337 * 10338 * "The device server is not capable of supporting a peripheral 10339 * device on this logical unit. For this peripheral qualifier the 10340 * peripheral device type shall be set to 1Fh. All other peripheral 10341 * device type values are reserved for this peripheral qualifier." 10342 * 10343 * Given the text, it would seem that we probably want to report that 10344 * the LUN is offline here. There is no LUN connected, but we can 10345 * support a LUN at the given LUN number. 10346 * 10347 * In the real world, though, it sounds like things are a little 10348 * different: 10349 * 10350 * - Linux, when presented with a LUN with the offline peripheral 10351 * qualifier, will create an sg driver instance for it. So when 10352 * you attach it to CTL, you wind up with a ton of sg driver 10353 * instances. (One for every LUN that Linux bothered to probe.) 10354 * Linux does this despite the fact that it issues a REPORT LUNs 10355 * to LUN 0 to get the inventory of supported LUNs. 10356 * 10357 * - There is other anecdotal evidence (from Emulex folks) about 10358 * arrays that use the offline peripheral qualifier for LUNs that 10359 * are on the "passive" path in an active/passive array. 10360 * 10361 * So the solution is provide a hopefully reasonable default 10362 * (return bad/no LUN) and allow the user to change the behavior 10363 * with a tunable/sysctl variable. 10364 */ 10365 if (lun != NULL) 10366 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10367 lun->be_lun->lun_type; 10368 else if (ctl_softc->inquiry_pq_no_lun == 0) 10369 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10370 else 10371 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10372 10373 /* RMB in byte 2 is 0 */ 10374 inq_ptr->version = SCSI_REV_SPC4; 10375 10376 /* 10377 * According to SAM-3, even if a device only supports a single 10378 * level of LUN addressing, it should still set the HISUP bit: 10379 * 10380 * 4.9.1 Logical unit numbers overview 10381 * 10382 * All logical unit number formats described in this standard are 10383 * hierarchical in structure even when only a single level in that 10384 * hierarchy is used. The HISUP bit shall be set to one in the 10385 * standard INQUIRY data (see SPC-2) when any logical unit number 10386 * format described in this standard is used. Non-hierarchical 10387 * formats are outside the scope of this standard. 10388 * 10389 * Therefore we set the HiSup bit here. 10390 * 10391 * The reponse format is 2, per SPC-3. 10392 */ 10393 inq_ptr->response_format = SID_HiSup | 2; 10394 10395 inq_ptr->additional_length = data_len - 10396 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10397 CTL_DEBUG_PRINT(("additional_length = %d\n", 10398 inq_ptr->additional_length)); 10399 10400 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10401 /* 16 bit addressing */ 10402 if (port_type == CTL_PORT_SCSI) 10403 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10404 /* XXX set the SID_MultiP bit here if we're actually going to 10405 respond on multiple ports */ 10406 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10407 10408 /* 16 bit data bus, synchronous transfers */ 10409 if (port_type == CTL_PORT_SCSI) 10410 inq_ptr->flags = SID_WBus16 | SID_Sync; 10411 /* 10412 * XXX KDM do we want to support tagged queueing on the control 10413 * device at all? 10414 */ 10415 if ((lun == NULL) 10416 || (lun->be_lun->lun_type != T_PROCESSOR)) 10417 inq_ptr->flags |= SID_CmdQue; 10418 /* 10419 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10420 * We have 8 bytes for the vendor name, and 16 bytes for the device 10421 * name and 4 bytes for the revision. 10422 */ 10423 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10424 "vendor")) == NULL) { 10425 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10426 } else { 10427 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10428 strncpy(inq_ptr->vendor, val, 10429 min(sizeof(inq_ptr->vendor), strlen(val))); 10430 } 10431 if (lun == NULL) { 10432 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10433 sizeof(inq_ptr->product)); 10434 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10435 switch (lun->be_lun->lun_type) { 10436 case T_DIRECT: 10437 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10438 sizeof(inq_ptr->product)); 10439 break; 10440 case T_PROCESSOR: 10441 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10442 sizeof(inq_ptr->product)); 10443 break; 10444 default: 10445 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10446 sizeof(inq_ptr->product)); 10447 break; 10448 } 10449 } else { 10450 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10451 strncpy(inq_ptr->product, val, 10452 min(sizeof(inq_ptr->product), strlen(val))); 10453 } 10454 10455 /* 10456 * XXX make this a macro somewhere so it automatically gets 10457 * incremented when we make changes. 10458 */ 10459 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10460 "revision")) == NULL) { 10461 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10462 } else { 10463 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10464 strncpy(inq_ptr->revision, val, 10465 min(sizeof(inq_ptr->revision), strlen(val))); 10466 } 10467 10468 /* 10469 * For parallel SCSI, we support double transition and single 10470 * transition clocking. We also support QAS (Quick Arbitration 10471 * and Selection) and Information Unit transfers on both the 10472 * control and array devices. 10473 */ 10474 if (port_type == CTL_PORT_SCSI) 10475 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10476 SID_SPI_IUS; 10477 10478 /* SAM-5 (no version claimed) */ 10479 scsi_ulto2b(0x00A0, inq_ptr->version1); 10480 /* SPC-4 (no version claimed) */ 10481 scsi_ulto2b(0x0460, inq_ptr->version2); 10482 if (port_type == CTL_PORT_FC) { 10483 /* FCP-2 ANSI INCITS.350:2003 */ 10484 scsi_ulto2b(0x0917, inq_ptr->version3); 10485 } else if (port_type == CTL_PORT_SCSI) { 10486 /* SPI-4 ANSI INCITS.362:200x */ 10487 scsi_ulto2b(0x0B56, inq_ptr->version3); 10488 } else if (port_type == CTL_PORT_ISCSI) { 10489 /* iSCSI (no version claimed) */ 10490 scsi_ulto2b(0x0960, inq_ptr->version3); 10491 } else if (port_type == CTL_PORT_SAS) { 10492 /* SAS (no version claimed) */ 10493 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10494 } 10495 10496 if (lun == NULL) { 10497 /* SBC-4 (no version claimed) */ 10498 scsi_ulto2b(0x0600, inq_ptr->version4); 10499 } else { 10500 switch (lun->be_lun->lun_type) { 10501 case T_DIRECT: 10502 /* SBC-4 (no version claimed) */ 10503 scsi_ulto2b(0x0600, inq_ptr->version4); 10504 break; 10505 case T_PROCESSOR: 10506 default: 10507 break; 10508 } 10509 } 10510 10511 ctl_set_success(ctsio); 10512 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10513 ctsio->be_move_done = ctl_config_move_done; 10514 ctl_datamove((union ctl_io *)ctsio); 10515 return (CTL_RETVAL_COMPLETE); 10516} 10517 10518int 10519ctl_inquiry(struct ctl_scsiio *ctsio) 10520{ 10521 struct scsi_inquiry *cdb; 10522 int retval; 10523 10524 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10525 10526 cdb = (struct scsi_inquiry *)ctsio->cdb; 10527 if (cdb->byte2 & SI_EVPD) 10528 retval = ctl_inquiry_evpd(ctsio); 10529 else if (cdb->page_code == 0) 10530 retval = ctl_inquiry_std(ctsio); 10531 else { 10532 ctl_set_invalid_field(ctsio, 10533 /*sks_valid*/ 1, 10534 /*command*/ 1, 10535 /*field*/ 2, 10536 /*bit_valid*/ 0, 10537 /*bit*/ 0); 10538 ctl_done((union ctl_io *)ctsio); 10539 return (CTL_RETVAL_COMPLETE); 10540 } 10541 10542 return (retval); 10543} 10544 10545/* 10546 * For known CDB types, parse the LBA and length. 10547 */ 10548static int 10549ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10550{ 10551 if (io->io_hdr.io_type != CTL_IO_SCSI) 10552 return (1); 10553 10554 switch (io->scsiio.cdb[0]) { 10555 case COMPARE_AND_WRITE: { 10556 struct scsi_compare_and_write *cdb; 10557 10558 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10559 10560 *lba = scsi_8btou64(cdb->addr); 10561 *len = cdb->length; 10562 break; 10563 } 10564 case READ_6: 10565 case WRITE_6: { 10566 struct scsi_rw_6 *cdb; 10567 10568 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10569 10570 *lba = scsi_3btoul(cdb->addr); 10571 /* only 5 bits are valid in the most significant address byte */ 10572 *lba &= 0x1fffff; 10573 *len = cdb->length; 10574 break; 10575 } 10576 case READ_10: 10577 case WRITE_10: { 10578 struct scsi_rw_10 *cdb; 10579 10580 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10581 10582 *lba = scsi_4btoul(cdb->addr); 10583 *len = scsi_2btoul(cdb->length); 10584 break; 10585 } 10586 case WRITE_VERIFY_10: { 10587 struct scsi_write_verify_10 *cdb; 10588 10589 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10590 10591 *lba = scsi_4btoul(cdb->addr); 10592 *len = scsi_2btoul(cdb->length); 10593 break; 10594 } 10595 case READ_12: 10596 case WRITE_12: { 10597 struct scsi_rw_12 *cdb; 10598 10599 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10600 10601 *lba = scsi_4btoul(cdb->addr); 10602 *len = scsi_4btoul(cdb->length); 10603 break; 10604 } 10605 case WRITE_VERIFY_12: { 10606 struct scsi_write_verify_12 *cdb; 10607 10608 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10609 10610 *lba = scsi_4btoul(cdb->addr); 10611 *len = scsi_4btoul(cdb->length); 10612 break; 10613 } 10614 case READ_16: 10615 case WRITE_16: 10616 case WRITE_ATOMIC_16: { 10617 struct scsi_rw_16 *cdb; 10618 10619 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10620 10621 *lba = scsi_8btou64(cdb->addr); 10622 *len = scsi_4btoul(cdb->length); 10623 break; 10624 } 10625 case WRITE_VERIFY_16: { 10626 struct scsi_write_verify_16 *cdb; 10627 10628 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10629 10630 *lba = scsi_8btou64(cdb->addr); 10631 *len = scsi_4btoul(cdb->length); 10632 break; 10633 } 10634 case WRITE_SAME_10: { 10635 struct scsi_write_same_10 *cdb; 10636 10637 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10638 10639 *lba = scsi_4btoul(cdb->addr); 10640 *len = scsi_2btoul(cdb->length); 10641 break; 10642 } 10643 case WRITE_SAME_16: { 10644 struct scsi_write_same_16 *cdb; 10645 10646 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10647 10648 *lba = scsi_8btou64(cdb->addr); 10649 *len = scsi_4btoul(cdb->length); 10650 break; 10651 } 10652 case VERIFY_10: { 10653 struct scsi_verify_10 *cdb; 10654 10655 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10656 10657 *lba = scsi_4btoul(cdb->addr); 10658 *len = scsi_2btoul(cdb->length); 10659 break; 10660 } 10661 case VERIFY_12: { 10662 struct scsi_verify_12 *cdb; 10663 10664 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10665 10666 *lba = scsi_4btoul(cdb->addr); 10667 *len = scsi_4btoul(cdb->length); 10668 break; 10669 } 10670 case VERIFY_16: { 10671 struct scsi_verify_16 *cdb; 10672 10673 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10674 10675 *lba = scsi_8btou64(cdb->addr); 10676 *len = scsi_4btoul(cdb->length); 10677 break; 10678 } 10679 case UNMAP: { 10680 *lba = 0; 10681 *len = UINT64_MAX; 10682 break; 10683 } 10684 default: 10685 return (1); 10686 break; /* NOTREACHED */ 10687 } 10688 10689 return (0); 10690} 10691 10692static ctl_action 10693ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2) 10694{ 10695 uint64_t endlba1, endlba2; 10696 10697 endlba1 = lba1 + len1 - 1; 10698 endlba2 = lba2 + len2 - 1; 10699 10700 if ((endlba1 < lba2) 10701 || (endlba2 < lba1)) 10702 return (CTL_ACTION_PASS); 10703 else 10704 return (CTL_ACTION_BLOCK); 10705} 10706 10707static int 10708ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10709{ 10710 struct ctl_ptr_len_flags *ptrlen; 10711 struct scsi_unmap_desc *buf, *end, *range; 10712 uint64_t lba; 10713 uint32_t len; 10714 10715 /* If not UNMAP -- go other way. */ 10716 if (io->io_hdr.io_type != CTL_IO_SCSI || 10717 io->scsiio.cdb[0] != UNMAP) 10718 return (CTL_ACTION_ERROR); 10719 10720 /* If UNMAP without data -- block and wait for data. */ 10721 ptrlen = (struct ctl_ptr_len_flags *) 10722 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10723 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10724 ptrlen->ptr == NULL) 10725 return (CTL_ACTION_BLOCK); 10726 10727 /* UNMAP with data -- check for collision. */ 10728 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10729 end = buf + ptrlen->len / sizeof(*buf); 10730 for (range = buf; range < end; range++) { 10731 lba = scsi_8btou64(range->lba); 10732 len = scsi_4btoul(range->length); 10733 if ((lba < lba2 + len2) && (lba + len > lba2)) 10734 return (CTL_ACTION_BLOCK); 10735 } 10736 return (CTL_ACTION_PASS); 10737} 10738 10739static ctl_action 10740ctl_extent_check(union ctl_io *io1, union ctl_io *io2) 10741{ 10742 uint64_t lba1, lba2; 10743 uint64_t len1, len2; 10744 int retval; 10745 10746 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10747 return (CTL_ACTION_ERROR); 10748 10749 retval = ctl_extent_check_unmap(io2, lba1, len1); 10750 if (retval != CTL_ACTION_ERROR) 10751 return (retval); 10752 10753 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10754 return (CTL_ACTION_ERROR); 10755 10756 return (ctl_extent_check_lba(lba1, len1, lba2, len2)); 10757} 10758 10759static ctl_action 10760ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10761 union ctl_io *ooa_io) 10762{ 10763 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10764 ctl_serialize_action *serialize_row; 10765 10766 /* 10767 * The initiator attempted multiple untagged commands at the same 10768 * time. Can't do that. 10769 */ 10770 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10771 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10772 && ((pending_io->io_hdr.nexus.targ_port == 10773 ooa_io->io_hdr.nexus.targ_port) 10774 && (pending_io->io_hdr.nexus.initid.id == 10775 ooa_io->io_hdr.nexus.initid.id)) 10776 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10777 return (CTL_ACTION_OVERLAP); 10778 10779 /* 10780 * The initiator attempted to send multiple tagged commands with 10781 * the same ID. (It's fine if different initiators have the same 10782 * tag ID.) 10783 * 10784 * Even if all of those conditions are true, we don't kill the I/O 10785 * if the command ahead of us has been aborted. We won't end up 10786 * sending it to the FETD, and it's perfectly legal to resend a 10787 * command with the same tag number as long as the previous 10788 * instance of this tag number has been aborted somehow. 10789 */ 10790 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10791 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10792 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10793 && ((pending_io->io_hdr.nexus.targ_port == 10794 ooa_io->io_hdr.nexus.targ_port) 10795 && (pending_io->io_hdr.nexus.initid.id == 10796 ooa_io->io_hdr.nexus.initid.id)) 10797 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10798 return (CTL_ACTION_OVERLAP_TAG); 10799 10800 /* 10801 * If we get a head of queue tag, SAM-3 says that we should 10802 * immediately execute it. 10803 * 10804 * What happens if this command would normally block for some other 10805 * reason? e.g. a request sense with a head of queue tag 10806 * immediately after a write. Normally that would block, but this 10807 * will result in its getting executed immediately... 10808 * 10809 * We currently return "pass" instead of "skip", so we'll end up 10810 * going through the rest of the queue to check for overlapped tags. 10811 * 10812 * XXX KDM check for other types of blockage first?? 10813 */ 10814 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10815 return (CTL_ACTION_PASS); 10816 10817 /* 10818 * Ordered tags have to block until all items ahead of them 10819 * have completed. If we get called with an ordered tag, we always 10820 * block, if something else is ahead of us in the queue. 10821 */ 10822 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 10823 return (CTL_ACTION_BLOCK); 10824 10825 /* 10826 * Simple tags get blocked until all head of queue and ordered tags 10827 * ahead of them have completed. I'm lumping untagged commands in 10828 * with simple tags here. XXX KDM is that the right thing to do? 10829 */ 10830 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10831 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 10832 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10833 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 10834 return (CTL_ACTION_BLOCK); 10835 10836 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 10837 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 10838 10839 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 10840 10841 switch (serialize_row[pending_entry->seridx]) { 10842 case CTL_SER_BLOCK: 10843 return (CTL_ACTION_BLOCK); 10844 case CTL_SER_EXTENT: 10845 return (ctl_extent_check(pending_io, ooa_io)); 10846 case CTL_SER_EXTENTOPT: 10847 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 10848 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 10849 return (ctl_extent_check(pending_io, ooa_io)); 10850 /* FALLTHROUGH */ 10851 case CTL_SER_PASS: 10852 return (CTL_ACTION_PASS); 10853 case CTL_SER_BLOCKOPT: 10854 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 10855 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 10856 return (CTL_ACTION_BLOCK); 10857 return (CTL_ACTION_PASS); 10858 case CTL_SER_SKIP: 10859 return (CTL_ACTION_SKIP); 10860 default: 10861 panic("invalid serialization value %d", 10862 serialize_row[pending_entry->seridx]); 10863 } 10864 10865 return (CTL_ACTION_ERROR); 10866} 10867 10868/* 10869 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 10870 * Assumptions: 10871 * - pending_io is generally either incoming, or on the blocked queue 10872 * - starting I/O is the I/O we want to start the check with. 10873 */ 10874static ctl_action 10875ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 10876 union ctl_io *starting_io) 10877{ 10878 union ctl_io *ooa_io; 10879 ctl_action action; 10880 10881 mtx_assert(&lun->lun_lock, MA_OWNED); 10882 10883 /* 10884 * Run back along the OOA queue, starting with the current 10885 * blocked I/O and going through every I/O before it on the 10886 * queue. If starting_io is NULL, we'll just end up returning 10887 * CTL_ACTION_PASS. 10888 */ 10889 for (ooa_io = starting_io; ooa_io != NULL; 10890 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 10891 ooa_links)){ 10892 10893 /* 10894 * This routine just checks to see whether 10895 * cur_blocked is blocked by ooa_io, which is ahead 10896 * of it in the queue. It doesn't queue/dequeue 10897 * cur_blocked. 10898 */ 10899 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 10900 switch (action) { 10901 case CTL_ACTION_BLOCK: 10902 case CTL_ACTION_OVERLAP: 10903 case CTL_ACTION_OVERLAP_TAG: 10904 case CTL_ACTION_SKIP: 10905 case CTL_ACTION_ERROR: 10906 return (action); 10907 break; /* NOTREACHED */ 10908 case CTL_ACTION_PASS: 10909 break; 10910 default: 10911 panic("invalid action %d", action); 10912 break; /* NOTREACHED */ 10913 } 10914 } 10915 10916 return (CTL_ACTION_PASS); 10917} 10918 10919/* 10920 * Assumptions: 10921 * - An I/O has just completed, and has been removed from the per-LUN OOA 10922 * queue, so some items on the blocked queue may now be unblocked. 10923 */ 10924static int 10925ctl_check_blocked(struct ctl_lun *lun) 10926{ 10927 union ctl_io *cur_blocked, *next_blocked; 10928 10929 mtx_assert(&lun->lun_lock, MA_OWNED); 10930 10931 /* 10932 * Run forward from the head of the blocked queue, checking each 10933 * entry against the I/Os prior to it on the OOA queue to see if 10934 * there is still any blockage. 10935 * 10936 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 10937 * with our removing a variable on it while it is traversing the 10938 * list. 10939 */ 10940 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 10941 cur_blocked != NULL; cur_blocked = next_blocked) { 10942 union ctl_io *prev_ooa; 10943 ctl_action action; 10944 10945 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 10946 blocked_links); 10947 10948 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 10949 ctl_ooaq, ooa_links); 10950 10951 /* 10952 * If cur_blocked happens to be the first item in the OOA 10953 * queue now, prev_ooa will be NULL, and the action 10954 * returned will just be CTL_ACTION_PASS. 10955 */ 10956 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 10957 10958 switch (action) { 10959 case CTL_ACTION_BLOCK: 10960 /* Nothing to do here, still blocked */ 10961 break; 10962 case CTL_ACTION_OVERLAP: 10963 case CTL_ACTION_OVERLAP_TAG: 10964 /* 10965 * This shouldn't happen! In theory we've already 10966 * checked this command for overlap... 10967 */ 10968 break; 10969 case CTL_ACTION_PASS: 10970 case CTL_ACTION_SKIP: { 10971 struct ctl_softc *softc; 10972 const struct ctl_cmd_entry *entry; 10973 int isc_retval; 10974 10975 /* 10976 * The skip case shouldn't happen, this transaction 10977 * should have never made it onto the blocked queue. 10978 */ 10979 /* 10980 * This I/O is no longer blocked, we can remove it 10981 * from the blocked queue. Since this is a TAILQ 10982 * (doubly linked list), we can do O(1) removals 10983 * from any place on the list. 10984 */ 10985 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 10986 blocked_links); 10987 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 10988 10989 if (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC){ 10990 /* 10991 * Need to send IO back to original side to 10992 * run 10993 */ 10994 union ctl_ha_msg msg_info; 10995 10996 msg_info.hdr.original_sc = 10997 cur_blocked->io_hdr.original_sc; 10998 msg_info.hdr.serializing_sc = cur_blocked; 10999 msg_info.hdr.msg_type = CTL_MSG_R2R; 11000 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11001 &msg_info, sizeof(msg_info), 0)) > 11002 CTL_HA_STATUS_SUCCESS) { 11003 printf("CTL:Check Blocked error from " 11004 "ctl_ha_msg_send %d\n", 11005 isc_retval); 11006 } 11007 break; 11008 } 11009 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 11010 softc = control_softc; 11011 11012 /* 11013 * Check this I/O for LUN state changes that may 11014 * have happened while this command was blocked. 11015 * The LUN state may have been changed by a command 11016 * ahead of us in the queue, so we need to re-check 11017 * for any states that can be caused by SCSI 11018 * commands. 11019 */ 11020 if (ctl_scsiio_lun_check(softc, lun, entry, 11021 &cur_blocked->scsiio) == 0) { 11022 cur_blocked->io_hdr.flags |= 11023 CTL_FLAG_IS_WAS_ON_RTR; 11024 ctl_enqueue_rtr(cur_blocked); 11025 } else 11026 ctl_done(cur_blocked); 11027 break; 11028 } 11029 default: 11030 /* 11031 * This probably shouldn't happen -- we shouldn't 11032 * get CTL_ACTION_ERROR, or anything else. 11033 */ 11034 break; 11035 } 11036 } 11037 11038 return (CTL_RETVAL_COMPLETE); 11039} 11040 11041/* 11042 * This routine (with one exception) checks LUN flags that can be set by 11043 * commands ahead of us in the OOA queue. These flags have to be checked 11044 * when a command initially comes in, and when we pull a command off the 11045 * blocked queue and are preparing to execute it. The reason we have to 11046 * check these flags for commands on the blocked queue is that the LUN 11047 * state may have been changed by a command ahead of us while we're on the 11048 * blocked queue. 11049 * 11050 * Ordering is somewhat important with these checks, so please pay 11051 * careful attention to the placement of any new checks. 11052 */ 11053static int 11054ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 11055 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11056{ 11057 int retval; 11058 uint32_t residx; 11059 11060 retval = 0; 11061 11062 mtx_assert(&lun->lun_lock, MA_OWNED); 11063 11064 /* 11065 * If this shelf is a secondary shelf controller, we have to reject 11066 * any media access commands. 11067 */ 11068 if ((ctl_softc->flags & CTL_FLAG_ACTIVE_SHELF) == 0 && 11069 (entry->flags & CTL_CMD_FLAG_OK_ON_SECONDARY) == 0) { 11070 ctl_set_lun_standby(ctsio); 11071 retval = 1; 11072 goto bailout; 11073 } 11074 11075 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11076 if (lun->flags & CTL_LUN_READONLY) { 11077 ctl_set_sense(ctsio, /*current_error*/ 1, 11078 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11079 /*asc*/ 0x27, /*ascq*/ 0x01, SSD_ELEM_NONE); 11080 retval = 1; 11081 goto bailout; 11082 } 11083 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT] 11084 .eca_and_aen & SCP_SWP) != 0) { 11085 ctl_set_sense(ctsio, /*current_error*/ 1, 11086 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11087 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11088 retval = 1; 11089 goto bailout; 11090 } 11091 } 11092 11093 /* 11094 * Check for a reservation conflict. If this command isn't allowed 11095 * even on reserved LUNs, and if this initiator isn't the one who 11096 * reserved us, reject the command with a reservation conflict. 11097 */ 11098 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 11099 if ((lun->flags & CTL_LUN_RESERVED) 11100 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11101 if (lun->res_idx != residx) { 11102 ctl_set_reservation_conflict(ctsio); 11103 retval = 1; 11104 goto bailout; 11105 } 11106 } 11107 11108 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0 || 11109 (entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV)) { 11110 /* No reservation or command is allowed. */; 11111 } else if ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_WRESV) && 11112 (lun->res_type == SPR_TYPE_WR_EX || 11113 lun->res_type == SPR_TYPE_WR_EX_RO || 11114 lun->res_type == SPR_TYPE_WR_EX_AR)) { 11115 /* The command is allowed for Write Exclusive resv. */; 11116 } else { 11117 /* 11118 * if we aren't registered or it's a res holder type 11119 * reservation and this isn't the res holder then set a 11120 * conflict. 11121 */ 11122 if (lun->pr_keys[residx] == 0 11123 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 11124 ctl_set_reservation_conflict(ctsio); 11125 retval = 1; 11126 goto bailout; 11127 } 11128 11129 } 11130 11131 if ((lun->flags & CTL_LUN_OFFLINE) 11132 && ((entry->flags & CTL_CMD_FLAG_OK_ON_OFFLINE) == 0)) { 11133 ctl_set_lun_not_ready(ctsio); 11134 retval = 1; 11135 goto bailout; 11136 } 11137 11138 /* 11139 * If the LUN is stopped, see if this particular command is allowed 11140 * for a stopped lun. Otherwise, reject it with 0x04,0x02. 11141 */ 11142 if ((lun->flags & CTL_LUN_STOPPED) 11143 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 11144 /* "Logical unit not ready, initializing cmd. required" */ 11145 ctl_set_lun_stopped(ctsio); 11146 retval = 1; 11147 goto bailout; 11148 } 11149 11150 if ((lun->flags & CTL_LUN_INOPERABLE) 11151 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 11152 /* "Medium format corrupted" */ 11153 ctl_set_medium_format_corrupted(ctsio); 11154 retval = 1; 11155 goto bailout; 11156 } 11157 11158bailout: 11159 return (retval); 11160 11161} 11162 11163static void 11164ctl_failover_io(union ctl_io *io, int have_lock) 11165{ 11166 ctl_set_busy(&io->scsiio); 11167 ctl_done(io); 11168} 11169 11170static void 11171ctl_failover(void) 11172{ 11173 struct ctl_lun *lun; 11174 struct ctl_softc *ctl_softc; 11175 union ctl_io *next_io, *pending_io; 11176 union ctl_io *io; 11177 int lun_idx; 11178 int i; 11179 11180 ctl_softc = control_softc; 11181 11182 mtx_lock(&ctl_softc->ctl_lock); 11183 /* 11184 * Remove any cmds from the other SC from the rtr queue. These 11185 * will obviously only be for LUNs for which we're the primary. 11186 * We can't send status or get/send data for these commands. 11187 * Since they haven't been executed yet, we can just remove them. 11188 * We'll either abort them or delete them below, depending on 11189 * which HA mode we're in. 11190 */ 11191#ifdef notyet 11192 mtx_lock(&ctl_softc->queue_lock); 11193 for (io = (union ctl_io *)STAILQ_FIRST(&ctl_softc->rtr_queue); 11194 io != NULL; io = next_io) { 11195 next_io = (union ctl_io *)STAILQ_NEXT(&io->io_hdr, links); 11196 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11197 STAILQ_REMOVE(&ctl_softc->rtr_queue, &io->io_hdr, 11198 ctl_io_hdr, links); 11199 } 11200 mtx_unlock(&ctl_softc->queue_lock); 11201#endif 11202 11203 for (lun_idx=0; lun_idx < ctl_softc->num_luns; lun_idx++) { 11204 lun = ctl_softc->ctl_luns[lun_idx]; 11205 if (lun==NULL) 11206 continue; 11207 11208 /* 11209 * Processor LUNs are primary on both sides. 11210 * XXX will this always be true? 11211 */ 11212 if (lun->be_lun->lun_type == T_PROCESSOR) 11213 continue; 11214 11215 if ((lun->flags & CTL_LUN_PRIMARY_SC) 11216 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11217 printf("FAILOVER: primary lun %d\n", lun_idx); 11218 /* 11219 * Remove all commands from the other SC. First from the 11220 * blocked queue then from the ooa queue. Once we have 11221 * removed them. Call ctl_check_blocked to see if there 11222 * is anything that can run. 11223 */ 11224 for (io = (union ctl_io *)TAILQ_FIRST( 11225 &lun->blocked_queue); io != NULL; io = next_io) { 11226 11227 next_io = (union ctl_io *)TAILQ_NEXT( 11228 &io->io_hdr, blocked_links); 11229 11230 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11231 TAILQ_REMOVE(&lun->blocked_queue, 11232 &io->io_hdr,blocked_links); 11233 io->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11234 TAILQ_REMOVE(&lun->ooa_queue, 11235 &io->io_hdr, ooa_links); 11236 11237 ctl_free_io(io); 11238 } 11239 } 11240 11241 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11242 io != NULL; io = next_io) { 11243 11244 next_io = (union ctl_io *)TAILQ_NEXT( 11245 &io->io_hdr, ooa_links); 11246 11247 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11248 11249 TAILQ_REMOVE(&lun->ooa_queue, 11250 &io->io_hdr, 11251 ooa_links); 11252 11253 ctl_free_io(io); 11254 } 11255 } 11256 ctl_check_blocked(lun); 11257 } else if ((lun->flags & CTL_LUN_PRIMARY_SC) 11258 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11259 11260 printf("FAILOVER: primary lun %d\n", lun_idx); 11261 /* 11262 * Abort all commands from the other SC. We can't 11263 * send status back for them now. These should get 11264 * cleaned up when they are completed or come out 11265 * for a datamove operation. 11266 */ 11267 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11268 io != NULL; io = next_io) { 11269 next_io = (union ctl_io *)TAILQ_NEXT( 11270 &io->io_hdr, ooa_links); 11271 11272 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11273 io->io_hdr.flags |= CTL_FLAG_ABORT; 11274 } 11275 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11276 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11277 11278 printf("FAILOVER: secondary lun %d\n", lun_idx); 11279 11280 lun->flags |= CTL_LUN_PRIMARY_SC; 11281 11282 /* 11283 * We send all I/O that was sent to this controller 11284 * and redirected to the other side back with 11285 * busy status, and have the initiator retry it. 11286 * Figuring out how much data has been transferred, 11287 * etc. and picking up where we left off would be 11288 * very tricky. 11289 * 11290 * XXX KDM need to remove I/O from the blocked 11291 * queue as well! 11292 */ 11293 for (pending_io = (union ctl_io *)TAILQ_FIRST( 11294 &lun->ooa_queue); pending_io != NULL; 11295 pending_io = next_io) { 11296 11297 next_io = (union ctl_io *)TAILQ_NEXT( 11298 &pending_io->io_hdr, ooa_links); 11299 11300 pending_io->io_hdr.flags &= 11301 ~CTL_FLAG_SENT_2OTHER_SC; 11302 11303 if (pending_io->io_hdr.flags & 11304 CTL_FLAG_IO_ACTIVE) { 11305 pending_io->io_hdr.flags |= 11306 CTL_FLAG_FAILOVER; 11307 } else { 11308 ctl_set_busy(&pending_io->scsiio); 11309 ctl_done(pending_io); 11310 } 11311 } 11312 11313 /* 11314 * Build Unit Attention 11315 */ 11316 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11317 lun->pending_ua[i] |= 11318 CTL_UA_ASYM_ACC_CHANGE; 11319 } 11320 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11321 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11322 printf("FAILOVER: secondary lun %d\n", lun_idx); 11323 /* 11324 * if the first io on the OOA is not on the RtR queue 11325 * add it. 11326 */ 11327 lun->flags |= CTL_LUN_PRIMARY_SC; 11328 11329 pending_io = (union ctl_io *)TAILQ_FIRST( 11330 &lun->ooa_queue); 11331 if (pending_io==NULL) { 11332 printf("Nothing on OOA queue\n"); 11333 continue; 11334 } 11335 11336 pending_io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11337 if ((pending_io->io_hdr.flags & 11338 CTL_FLAG_IS_WAS_ON_RTR) == 0) { 11339 pending_io->io_hdr.flags |= 11340 CTL_FLAG_IS_WAS_ON_RTR; 11341 ctl_enqueue_rtr(pending_io); 11342 } 11343#if 0 11344 else 11345 { 11346 printf("Tag 0x%04x is running\n", 11347 pending_io->scsiio.tag_num); 11348 } 11349#endif 11350 11351 next_io = (union ctl_io *)TAILQ_NEXT( 11352 &pending_io->io_hdr, ooa_links); 11353 for (pending_io=next_io; pending_io != NULL; 11354 pending_io = next_io) { 11355 pending_io->io_hdr.flags &= 11356 ~CTL_FLAG_SENT_2OTHER_SC; 11357 next_io = (union ctl_io *)TAILQ_NEXT( 11358 &pending_io->io_hdr, ooa_links); 11359 if (pending_io->io_hdr.flags & 11360 CTL_FLAG_IS_WAS_ON_RTR) { 11361#if 0 11362 printf("Tag 0x%04x is running\n", 11363 pending_io->scsiio.tag_num); 11364#endif 11365 continue; 11366 } 11367 11368 switch (ctl_check_ooa(lun, pending_io, 11369 (union ctl_io *)TAILQ_PREV( 11370 &pending_io->io_hdr, ctl_ooaq, 11371 ooa_links))) { 11372 11373 case CTL_ACTION_BLOCK: 11374 TAILQ_INSERT_TAIL(&lun->blocked_queue, 11375 &pending_io->io_hdr, 11376 blocked_links); 11377 pending_io->io_hdr.flags |= 11378 CTL_FLAG_BLOCKED; 11379 break; 11380 case CTL_ACTION_PASS: 11381 case CTL_ACTION_SKIP: 11382 pending_io->io_hdr.flags |= 11383 CTL_FLAG_IS_WAS_ON_RTR; 11384 ctl_enqueue_rtr(pending_io); 11385 break; 11386 case CTL_ACTION_OVERLAP: 11387 ctl_set_overlapped_cmd( 11388 (struct ctl_scsiio *)pending_io); 11389 ctl_done(pending_io); 11390 break; 11391 case CTL_ACTION_OVERLAP_TAG: 11392 ctl_set_overlapped_tag( 11393 (struct ctl_scsiio *)pending_io, 11394 pending_io->scsiio.tag_num & 0xff); 11395 ctl_done(pending_io); 11396 break; 11397 case CTL_ACTION_ERROR: 11398 default: 11399 ctl_set_internal_failure( 11400 (struct ctl_scsiio *)pending_io, 11401 0, // sks_valid 11402 0); //retry count 11403 ctl_done(pending_io); 11404 break; 11405 } 11406 } 11407 11408 /* 11409 * Build Unit Attention 11410 */ 11411 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11412 lun->pending_ua[i] |= 11413 CTL_UA_ASYM_ACC_CHANGE; 11414 } 11415 } else { 11416 panic("Unhandled HA mode failover, LUN flags = %#x, " 11417 "ha_mode = #%x", lun->flags, ctl_softc->ha_mode); 11418 } 11419 } 11420 ctl_pause_rtr = 0; 11421 mtx_unlock(&ctl_softc->ctl_lock); 11422} 11423 11424static int 11425ctl_scsiio_precheck(struct ctl_softc *ctl_softc, struct ctl_scsiio *ctsio) 11426{ 11427 struct ctl_lun *lun; 11428 const struct ctl_cmd_entry *entry; 11429 uint32_t initidx, targ_lun; 11430 int retval; 11431 11432 retval = 0; 11433 11434 lun = NULL; 11435 11436 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11437 if ((targ_lun < CTL_MAX_LUNS) 11438 && ((lun = ctl_softc->ctl_luns[targ_lun]) != NULL)) { 11439 /* 11440 * If the LUN is invalid, pretend that it doesn't exist. 11441 * It will go away as soon as all pending I/O has been 11442 * completed. 11443 */ 11444 mtx_lock(&lun->lun_lock); 11445 if (lun->flags & CTL_LUN_DISABLED) { 11446 mtx_unlock(&lun->lun_lock); 11447 lun = NULL; 11448 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11449 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11450 } else { 11451 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11452 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11453 lun->be_lun; 11454 if (lun->be_lun->lun_type == T_PROCESSOR) { 11455 ctsio->io_hdr.flags |= CTL_FLAG_CONTROL_DEV; 11456 } 11457 11458 /* 11459 * Every I/O goes into the OOA queue for a 11460 * particular LUN, and stays there until completion. 11461 */ 11462 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11463 ooa_links); 11464 } 11465 } else { 11466 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11467 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11468 } 11469 11470 /* Get command entry and return error if it is unsuppotyed. */ 11471 entry = ctl_validate_command(ctsio); 11472 if (entry == NULL) { 11473 if (lun) 11474 mtx_unlock(&lun->lun_lock); 11475 return (retval); 11476 } 11477 11478 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11479 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11480 11481 /* 11482 * Check to see whether we can send this command to LUNs that don't 11483 * exist. This should pretty much only be the case for inquiry 11484 * and request sense. Further checks, below, really require having 11485 * a LUN, so we can't really check the command anymore. Just put 11486 * it on the rtr queue. 11487 */ 11488 if (lun == NULL) { 11489 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) { 11490 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11491 ctl_enqueue_rtr((union ctl_io *)ctsio); 11492 return (retval); 11493 } 11494 11495 ctl_set_unsupported_lun(ctsio); 11496 ctl_done((union ctl_io *)ctsio); 11497 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11498 return (retval); 11499 } else { 11500 /* 11501 * Make sure we support this particular command on this LUN. 11502 * e.g., we don't support writes to the control LUN. 11503 */ 11504 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11505 mtx_unlock(&lun->lun_lock); 11506 ctl_set_invalid_opcode(ctsio); 11507 ctl_done((union ctl_io *)ctsio); 11508 return (retval); 11509 } 11510 } 11511 11512 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11513 11514#ifdef CTL_WITH_CA 11515 /* 11516 * If we've got a request sense, it'll clear the contingent 11517 * allegiance condition. Otherwise, if we have a CA condition for 11518 * this initiator, clear it, because it sent down a command other 11519 * than request sense. 11520 */ 11521 if ((ctsio->cdb[0] != REQUEST_SENSE) 11522 && (ctl_is_set(lun->have_ca, initidx))) 11523 ctl_clear_mask(lun->have_ca, initidx); 11524#endif 11525 11526 /* 11527 * If the command has this flag set, it handles its own unit 11528 * attention reporting, we shouldn't do anything. Otherwise we 11529 * check for any pending unit attentions, and send them back to the 11530 * initiator. We only do this when a command initially comes in, 11531 * not when we pull it off the blocked queue. 11532 * 11533 * According to SAM-3, section 5.3.2, the order that things get 11534 * presented back to the host is basically unit attentions caused 11535 * by some sort of reset event, busy status, reservation conflicts 11536 * or task set full, and finally any other status. 11537 * 11538 * One issue here is that some of the unit attentions we report 11539 * don't fall into the "reset" category (e.g. "reported luns data 11540 * has changed"). So reporting it here, before the reservation 11541 * check, may be technically wrong. I guess the only thing to do 11542 * would be to check for and report the reset events here, and then 11543 * check for the other unit attention types after we check for a 11544 * reservation conflict. 11545 * 11546 * XXX KDM need to fix this 11547 */ 11548 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11549 ctl_ua_type ua_type; 11550 11551 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 11552 scsi_sense_data_type sense_format; 11553 11554 if (lun != NULL) 11555 sense_format = (lun->flags & 11556 CTL_LUN_SENSE_DESC) ? SSD_TYPE_DESC : 11557 SSD_TYPE_FIXED; 11558 else 11559 sense_format = SSD_TYPE_FIXED; 11560 11561 ua_type = ctl_build_ua(&lun->pending_ua[initidx], 11562 &ctsio->sense_data, sense_format); 11563 if (ua_type != CTL_UA_NONE) { 11564 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11565 ctsio->io_hdr.status = CTL_SCSI_ERROR | 11566 CTL_AUTOSENSE; 11567 ctsio->sense_len = SSD_FULL_SIZE; 11568 mtx_unlock(&lun->lun_lock); 11569 ctl_done((union ctl_io *)ctsio); 11570 return (retval); 11571 } 11572 } 11573 } 11574 11575 11576 if (ctl_scsiio_lun_check(ctl_softc, lun, entry, ctsio) != 0) { 11577 mtx_unlock(&lun->lun_lock); 11578 ctl_done((union ctl_io *)ctsio); 11579 return (retval); 11580 } 11581 11582 /* 11583 * XXX CHD this is where we want to send IO to other side if 11584 * this LUN is secondary on this SC. We will need to make a copy 11585 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11586 * the copy we send as FROM_OTHER. 11587 * We also need to stuff the address of the original IO so we can 11588 * find it easily. Something similar will need be done on the other 11589 * side so when we are done we can find the copy. 11590 */ 11591 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11592 union ctl_ha_msg msg_info; 11593 int isc_retval; 11594 11595 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11596 11597 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11598 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11599#if 0 11600 printf("1. ctsio %p\n", ctsio); 11601#endif 11602 msg_info.hdr.serializing_sc = NULL; 11603 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11604 msg_info.scsi.tag_num = ctsio->tag_num; 11605 msg_info.scsi.tag_type = ctsio->tag_type; 11606 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11607 11608 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11609 11610 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11611 (void *)&msg_info, sizeof(msg_info), 0)) > 11612 CTL_HA_STATUS_SUCCESS) { 11613 printf("CTL:precheck, ctl_ha_msg_send returned %d\n", 11614 isc_retval); 11615 printf("CTL:opcode is %x\n", ctsio->cdb[0]); 11616 } else { 11617#if 0 11618 printf("CTL:Precheck sent msg, opcode is %x\n",opcode); 11619#endif 11620 } 11621 11622 /* 11623 * XXX KDM this I/O is off the incoming queue, but hasn't 11624 * been inserted on any other queue. We may need to come 11625 * up with a holding queue while we wait for serialization 11626 * so that we have an idea of what we're waiting for from 11627 * the other side. 11628 */ 11629 mtx_unlock(&lun->lun_lock); 11630 return (retval); 11631 } 11632 11633 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11634 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11635 ctl_ooaq, ooa_links))) { 11636 case CTL_ACTION_BLOCK: 11637 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11638 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11639 blocked_links); 11640 mtx_unlock(&lun->lun_lock); 11641 return (retval); 11642 case CTL_ACTION_PASS: 11643 case CTL_ACTION_SKIP: 11644 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11645 mtx_unlock(&lun->lun_lock); 11646 ctl_enqueue_rtr((union ctl_io *)ctsio); 11647 break; 11648 case CTL_ACTION_OVERLAP: 11649 mtx_unlock(&lun->lun_lock); 11650 ctl_set_overlapped_cmd(ctsio); 11651 ctl_done((union ctl_io *)ctsio); 11652 break; 11653 case CTL_ACTION_OVERLAP_TAG: 11654 mtx_unlock(&lun->lun_lock); 11655 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11656 ctl_done((union ctl_io *)ctsio); 11657 break; 11658 case CTL_ACTION_ERROR: 11659 default: 11660 mtx_unlock(&lun->lun_lock); 11661 ctl_set_internal_failure(ctsio, 11662 /*sks_valid*/ 0, 11663 /*retry_count*/ 0); 11664 ctl_done((union ctl_io *)ctsio); 11665 break; 11666 } 11667 return (retval); 11668} 11669 11670const struct ctl_cmd_entry * 11671ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11672{ 11673 const struct ctl_cmd_entry *entry; 11674 int service_action; 11675 11676 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11677 if (sa) 11678 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11679 if (entry->flags & CTL_CMD_FLAG_SA5) { 11680 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11681 entry = &((const struct ctl_cmd_entry *) 11682 entry->execute)[service_action]; 11683 } 11684 return (entry); 11685} 11686 11687const struct ctl_cmd_entry * 11688ctl_validate_command(struct ctl_scsiio *ctsio) 11689{ 11690 const struct ctl_cmd_entry *entry; 11691 int i, sa; 11692 uint8_t diff; 11693 11694 entry = ctl_get_cmd_entry(ctsio, &sa); 11695 if (entry->execute == NULL) { 11696 if (sa) 11697 ctl_set_invalid_field(ctsio, 11698 /*sks_valid*/ 1, 11699 /*command*/ 1, 11700 /*field*/ 1, 11701 /*bit_valid*/ 1, 11702 /*bit*/ 4); 11703 else 11704 ctl_set_invalid_opcode(ctsio); 11705 ctl_done((union ctl_io *)ctsio); 11706 return (NULL); 11707 } 11708 KASSERT(entry->length > 0, 11709 ("Not defined length for command 0x%02x/0x%02x", 11710 ctsio->cdb[0], ctsio->cdb[1])); 11711 for (i = 1; i < entry->length; i++) { 11712 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11713 if (diff == 0) 11714 continue; 11715 ctl_set_invalid_field(ctsio, 11716 /*sks_valid*/ 1, 11717 /*command*/ 1, 11718 /*field*/ i, 11719 /*bit_valid*/ 1, 11720 /*bit*/ fls(diff) - 1); 11721 ctl_done((union ctl_io *)ctsio); 11722 return (NULL); 11723 } 11724 return (entry); 11725} 11726 11727static int 11728ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11729{ 11730 11731 switch (lun_type) { 11732 case T_PROCESSOR: 11733 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) && 11734 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11735 return (0); 11736 break; 11737 case T_DIRECT: 11738 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) && 11739 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11740 return (0); 11741 break; 11742 default: 11743 return (0); 11744 } 11745 return (1); 11746} 11747 11748static int 11749ctl_scsiio(struct ctl_scsiio *ctsio) 11750{ 11751 int retval; 11752 const struct ctl_cmd_entry *entry; 11753 11754 retval = CTL_RETVAL_COMPLETE; 11755 11756 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11757 11758 entry = ctl_get_cmd_entry(ctsio, NULL); 11759 11760 /* 11761 * If this I/O has been aborted, just send it straight to 11762 * ctl_done() without executing it. 11763 */ 11764 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11765 ctl_done((union ctl_io *)ctsio); 11766 goto bailout; 11767 } 11768 11769 /* 11770 * All the checks should have been handled by ctl_scsiio_precheck(). 11771 * We should be clear now to just execute the I/O. 11772 */ 11773 retval = entry->execute(ctsio); 11774 11775bailout: 11776 return (retval); 11777} 11778 11779/* 11780 * Since we only implement one target right now, a bus reset simply resets 11781 * our single target. 11782 */ 11783static int 11784ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io) 11785{ 11786 return(ctl_target_reset(ctl_softc, io, CTL_UA_BUS_RESET)); 11787} 11788 11789static int 11790ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 11791 ctl_ua_type ua_type) 11792{ 11793 struct ctl_lun *lun; 11794 int retval; 11795 11796 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11797 union ctl_ha_msg msg_info; 11798 11799 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11800 msg_info.hdr.nexus = io->io_hdr.nexus; 11801 if (ua_type==CTL_UA_TARG_RESET) 11802 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11803 else 11804 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11805 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11806 msg_info.hdr.original_sc = NULL; 11807 msg_info.hdr.serializing_sc = NULL; 11808 if (CTL_HA_STATUS_SUCCESS != ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11809 (void *)&msg_info, sizeof(msg_info), 0)) { 11810 } 11811 } 11812 retval = 0; 11813 11814 mtx_lock(&ctl_softc->ctl_lock); 11815 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) 11816 retval += ctl_lun_reset(lun, io, ua_type); 11817 mtx_unlock(&ctl_softc->ctl_lock); 11818 11819 return (retval); 11820} 11821 11822/* 11823 * The LUN should always be set. The I/O is optional, and is used to 11824 * distinguish between I/Os sent by this initiator, and by other 11825 * initiators. We set unit attention for initiators other than this one. 11826 * SAM-3 is vague on this point. It does say that a unit attention should 11827 * be established for other initiators when a LUN is reset (see section 11828 * 5.7.3), but it doesn't specifically say that the unit attention should 11829 * be established for this particular initiator when a LUN is reset. Here 11830 * is the relevant text, from SAM-3 rev 8: 11831 * 11832 * 5.7.2 When a SCSI initiator port aborts its own tasks 11833 * 11834 * When a SCSI initiator port causes its own task(s) to be aborted, no 11835 * notification that the task(s) have been aborted shall be returned to 11836 * the SCSI initiator port other than the completion response for the 11837 * command or task management function action that caused the task(s) to 11838 * be aborted and notification(s) associated with related effects of the 11839 * action (e.g., a reset unit attention condition). 11840 * 11841 * XXX KDM for now, we're setting unit attention for all initiators. 11842 */ 11843static int 11844ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11845{ 11846 union ctl_io *xio; 11847#if 0 11848 uint32_t initidx; 11849#endif 11850 int i; 11851 11852 mtx_lock(&lun->lun_lock); 11853 /* 11854 * Run through the OOA queue and abort each I/O. 11855 */ 11856#if 0 11857 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 11858#endif 11859 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11860 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11861 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11862 } 11863 11864 /* 11865 * This version sets unit attention for every 11866 */ 11867#if 0 11868 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11869 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11870 if (initidx == i) 11871 continue; 11872 lun->pending_ua[i] |= ua_type; 11873 } 11874#endif 11875 11876 /* 11877 * A reset (any kind, really) clears reservations established with 11878 * RESERVE/RELEASE. It does not clear reservations established 11879 * with PERSISTENT RESERVE OUT, but we don't support that at the 11880 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11881 * reservations made with the RESERVE/RELEASE commands, because 11882 * those commands are obsolete in SPC-3. 11883 */ 11884 lun->flags &= ~CTL_LUN_RESERVED; 11885 11886 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11887#ifdef CTL_WITH_CA 11888 ctl_clear_mask(lun->have_ca, i); 11889#endif 11890 lun->pending_ua[i] |= ua_type; 11891 } 11892 mtx_unlock(&lun->lun_lock); 11893 11894 return (0); 11895} 11896 11897static void 11898ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11899 int other_sc) 11900{ 11901 union ctl_io *xio; 11902 11903 mtx_assert(&lun->lun_lock, MA_OWNED); 11904 11905 /* 11906 * Run through the OOA queue and attempt to find the given I/O. 11907 * The target port, initiator ID, tag type and tag number have to 11908 * match the values that we got from the initiator. If we have an 11909 * untagged command to abort, simply abort the first untagged command 11910 * we come to. We only allow one untagged command at a time of course. 11911 */ 11912 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11913 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11914 11915 if ((targ_port == UINT32_MAX || 11916 targ_port == xio->io_hdr.nexus.targ_port) && 11917 (init_id == UINT32_MAX || 11918 init_id == xio->io_hdr.nexus.initid.id)) { 11919 if (targ_port != xio->io_hdr.nexus.targ_port || 11920 init_id != xio->io_hdr.nexus.initid.id) 11921 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 11922 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11923 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11924 union ctl_ha_msg msg_info; 11925 11926 msg_info.hdr.nexus = xio->io_hdr.nexus; 11927 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 11928 msg_info.task.tag_num = xio->scsiio.tag_num; 11929 msg_info.task.tag_type = xio->scsiio.tag_type; 11930 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11931 msg_info.hdr.original_sc = NULL; 11932 msg_info.hdr.serializing_sc = NULL; 11933 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11934 (void *)&msg_info, sizeof(msg_info), 0); 11935 } 11936 } 11937 } 11938} 11939 11940static int 11941ctl_abort_task_set(union ctl_io *io) 11942{ 11943 struct ctl_softc *softc = control_softc; 11944 struct ctl_lun *lun; 11945 uint32_t targ_lun; 11946 11947 /* 11948 * Look up the LUN. 11949 */ 11950 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11951 mtx_lock(&softc->ctl_lock); 11952 if ((targ_lun < CTL_MAX_LUNS) && (softc->ctl_luns[targ_lun] != NULL)) 11953 lun = softc->ctl_luns[targ_lun]; 11954 else { 11955 mtx_unlock(&softc->ctl_lock); 11956 return (1); 11957 } 11958 11959 mtx_lock(&lun->lun_lock); 11960 mtx_unlock(&softc->ctl_lock); 11961 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 11962 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11963 io->io_hdr.nexus.initid.id, 11964 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11965 } else { /* CTL_TASK_CLEAR_TASK_SET */ 11966 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 11967 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11968 } 11969 mtx_unlock(&lun->lun_lock); 11970 return (0); 11971} 11972 11973static int 11974ctl_i_t_nexus_reset(union ctl_io *io) 11975{ 11976 struct ctl_softc *softc = control_softc; 11977 struct ctl_lun *lun; 11978 uint32_t initidx, residx; 11979 11980 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11981 residx = ctl_get_resindex(&io->io_hdr.nexus); 11982 mtx_lock(&softc->ctl_lock); 11983 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11984 mtx_lock(&lun->lun_lock); 11985 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11986 io->io_hdr.nexus.initid.id, 11987 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11988#ifdef CTL_WITH_CA 11989 ctl_clear_mask(lun->have_ca, initidx); 11990#endif 11991 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 11992 lun->flags &= ~CTL_LUN_RESERVED; 11993 lun->pending_ua[initidx] |= CTL_UA_I_T_NEXUS_LOSS; 11994 mtx_unlock(&lun->lun_lock); 11995 } 11996 mtx_unlock(&softc->ctl_lock); 11997 return (0); 11998} 11999 12000static int 12001ctl_abort_task(union ctl_io *io) 12002{ 12003 union ctl_io *xio; 12004 struct ctl_lun *lun; 12005 struct ctl_softc *ctl_softc; 12006#if 0 12007 struct sbuf sb; 12008 char printbuf[128]; 12009#endif 12010 int found; 12011 uint32_t targ_lun; 12012 12013 ctl_softc = control_softc; 12014 found = 0; 12015 12016 /* 12017 * Look up the LUN. 12018 */ 12019 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12020 mtx_lock(&ctl_softc->ctl_lock); 12021 if ((targ_lun < CTL_MAX_LUNS) 12022 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12023 lun = ctl_softc->ctl_luns[targ_lun]; 12024 else { 12025 mtx_unlock(&ctl_softc->ctl_lock); 12026 return (1); 12027 } 12028 12029#if 0 12030 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12031 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12032#endif 12033 12034 mtx_lock(&lun->lun_lock); 12035 mtx_unlock(&ctl_softc->ctl_lock); 12036 /* 12037 * Run through the OOA queue and attempt to find the given I/O. 12038 * The target port, initiator ID, tag type and tag number have to 12039 * match the values that we got from the initiator. If we have an 12040 * untagged command to abort, simply abort the first untagged command 12041 * we come to. We only allow one untagged command at a time of course. 12042 */ 12043#if 0 12044 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12045#endif 12046 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12047 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12048#if 0 12049 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12050 12051 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12052 lun->lun, xio->scsiio.tag_num, 12053 xio->scsiio.tag_type, 12054 (xio->io_hdr.blocked_links.tqe_prev 12055 == NULL) ? "" : " BLOCKED", 12056 (xio->io_hdr.flags & 12057 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12058 (xio->io_hdr.flags & 12059 CTL_FLAG_ABORT) ? " ABORT" : "", 12060 (xio->io_hdr.flags & 12061 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12062 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12063 sbuf_finish(&sb); 12064 printf("%s\n", sbuf_data(&sb)); 12065#endif 12066 12067 if ((xio->io_hdr.nexus.targ_port == io->io_hdr.nexus.targ_port) 12068 && (xio->io_hdr.nexus.initid.id == 12069 io->io_hdr.nexus.initid.id)) { 12070 /* 12071 * If the abort says that the task is untagged, the 12072 * task in the queue must be untagged. Otherwise, 12073 * we just check to see whether the tag numbers 12074 * match. This is because the QLogic firmware 12075 * doesn't pass back the tag type in an abort 12076 * request. 12077 */ 12078#if 0 12079 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12080 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12081 || (xio->scsiio.tag_num == io->taskio.tag_num)) { 12082#endif 12083 /* 12084 * XXX KDM we've got problems with FC, because it 12085 * doesn't send down a tag type with aborts. So we 12086 * can only really go by the tag number... 12087 * This may cause problems with parallel SCSI. 12088 * Need to figure that out!! 12089 */ 12090 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12091 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12092 found = 1; 12093 if ((io->io_hdr.flags & 12094 CTL_FLAG_FROM_OTHER_SC) == 0 && 12095 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12096 union ctl_ha_msg msg_info; 12097 12098 io->io_hdr.flags |= 12099 CTL_FLAG_SENT_2OTHER_SC; 12100 msg_info.hdr.nexus = io->io_hdr.nexus; 12101 msg_info.task.task_action = 12102 CTL_TASK_ABORT_TASK; 12103 msg_info.task.tag_num = 12104 io->taskio.tag_num; 12105 msg_info.task.tag_type = 12106 io->taskio.tag_type; 12107 msg_info.hdr.msg_type = 12108 CTL_MSG_MANAGE_TASKS; 12109 msg_info.hdr.original_sc = NULL; 12110 msg_info.hdr.serializing_sc = NULL; 12111#if 0 12112 printf("Sent Abort to other side\n"); 12113#endif 12114 if (CTL_HA_STATUS_SUCCESS != 12115 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12116 (void *)&msg_info, 12117 sizeof(msg_info), 0)) { 12118 } 12119 } 12120#if 0 12121 printf("ctl_abort_task: found I/O to abort\n"); 12122#endif 12123 break; 12124 } 12125 } 12126 } 12127 mtx_unlock(&lun->lun_lock); 12128 12129 if (found == 0) { 12130 /* 12131 * This isn't really an error. It's entirely possible for 12132 * the abort and command completion to cross on the wire. 12133 * This is more of an informative/diagnostic error. 12134 */ 12135#if 0 12136 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12137 "%d:%d:%d:%d tag %d type %d\n", 12138 io->io_hdr.nexus.initid.id, 12139 io->io_hdr.nexus.targ_port, 12140 io->io_hdr.nexus.targ_target.id, 12141 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12142 io->taskio.tag_type); 12143#endif 12144 } 12145 return (0); 12146} 12147 12148static void 12149ctl_run_task(union ctl_io *io) 12150{ 12151 struct ctl_softc *ctl_softc = control_softc; 12152 int retval = 1; 12153 const char *task_desc; 12154 12155 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12156 12157 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12158 ("ctl_run_task: Unextected io_type %d\n", 12159 io->io_hdr.io_type)); 12160 12161 task_desc = ctl_scsi_task_string(&io->taskio); 12162 if (task_desc != NULL) { 12163#ifdef NEEDTOPORT 12164 csevent_log(CSC_CTL | CSC_SHELF_SW | 12165 CTL_TASK_REPORT, 12166 csevent_LogType_Trace, 12167 csevent_Severity_Information, 12168 csevent_AlertLevel_Green, 12169 csevent_FRU_Firmware, 12170 csevent_FRU_Unknown, 12171 "CTL: received task: %s",task_desc); 12172#endif 12173 } else { 12174#ifdef NEEDTOPORT 12175 csevent_log(CSC_CTL | CSC_SHELF_SW | 12176 CTL_TASK_REPORT, 12177 csevent_LogType_Trace, 12178 csevent_Severity_Information, 12179 csevent_AlertLevel_Green, 12180 csevent_FRU_Firmware, 12181 csevent_FRU_Unknown, 12182 "CTL: received unknown task " 12183 "type: %d (%#x)", 12184 io->taskio.task_action, 12185 io->taskio.task_action); 12186#endif 12187 } 12188 switch (io->taskio.task_action) { 12189 case CTL_TASK_ABORT_TASK: 12190 retval = ctl_abort_task(io); 12191 break; 12192 case CTL_TASK_ABORT_TASK_SET: 12193 case CTL_TASK_CLEAR_TASK_SET: 12194 retval = ctl_abort_task_set(io); 12195 break; 12196 case CTL_TASK_CLEAR_ACA: 12197 break; 12198 case CTL_TASK_I_T_NEXUS_RESET: 12199 retval = ctl_i_t_nexus_reset(io); 12200 break; 12201 case CTL_TASK_LUN_RESET: { 12202 struct ctl_lun *lun; 12203 uint32_t targ_lun; 12204 12205 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12206 mtx_lock(&ctl_softc->ctl_lock); 12207 if ((targ_lun < CTL_MAX_LUNS) 12208 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12209 lun = ctl_softc->ctl_luns[targ_lun]; 12210 else { 12211 mtx_unlock(&ctl_softc->ctl_lock); 12212 retval = 1; 12213 break; 12214 } 12215 12216 if (!(io->io_hdr.flags & 12217 CTL_FLAG_FROM_OTHER_SC)) { 12218 union ctl_ha_msg msg_info; 12219 12220 io->io_hdr.flags |= 12221 CTL_FLAG_SENT_2OTHER_SC; 12222 msg_info.hdr.msg_type = 12223 CTL_MSG_MANAGE_TASKS; 12224 msg_info.hdr.nexus = io->io_hdr.nexus; 12225 msg_info.task.task_action = 12226 CTL_TASK_LUN_RESET; 12227 msg_info.hdr.original_sc = NULL; 12228 msg_info.hdr.serializing_sc = NULL; 12229 if (CTL_HA_STATUS_SUCCESS != 12230 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12231 (void *)&msg_info, 12232 sizeof(msg_info), 0)) { 12233 } 12234 } 12235 12236 retval = ctl_lun_reset(lun, io, 12237 CTL_UA_LUN_RESET); 12238 mtx_unlock(&ctl_softc->ctl_lock); 12239 break; 12240 } 12241 case CTL_TASK_TARGET_RESET: 12242 retval = ctl_target_reset(ctl_softc, io, CTL_UA_TARG_RESET); 12243 break; 12244 case CTL_TASK_BUS_RESET: 12245 retval = ctl_bus_reset(ctl_softc, io); 12246 break; 12247 case CTL_TASK_PORT_LOGIN: 12248 break; 12249 case CTL_TASK_PORT_LOGOUT: 12250 break; 12251 default: 12252 printf("ctl_run_task: got unknown task management event %d\n", 12253 io->taskio.task_action); 12254 break; 12255 } 12256 if (retval == 0) 12257 io->io_hdr.status = CTL_SUCCESS; 12258 else 12259 io->io_hdr.status = CTL_ERROR; 12260 ctl_done(io); 12261} 12262 12263/* 12264 * For HA operation. Handle commands that come in from the other 12265 * controller. 12266 */ 12267static void 12268ctl_handle_isc(union ctl_io *io) 12269{ 12270 int free_io; 12271 struct ctl_lun *lun; 12272 struct ctl_softc *ctl_softc; 12273 uint32_t targ_lun; 12274 12275 ctl_softc = control_softc; 12276 12277 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12278 lun = ctl_softc->ctl_luns[targ_lun]; 12279 12280 switch (io->io_hdr.msg_type) { 12281 case CTL_MSG_SERIALIZE: 12282 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12283 break; 12284 case CTL_MSG_R2R: { 12285 const struct ctl_cmd_entry *entry; 12286 12287 /* 12288 * This is only used in SER_ONLY mode. 12289 */ 12290 free_io = 0; 12291 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12292 mtx_lock(&lun->lun_lock); 12293 if (ctl_scsiio_lun_check(ctl_softc, lun, 12294 entry, (struct ctl_scsiio *)io) != 0) { 12295 mtx_unlock(&lun->lun_lock); 12296 ctl_done(io); 12297 break; 12298 } 12299 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12300 mtx_unlock(&lun->lun_lock); 12301 ctl_enqueue_rtr(io); 12302 break; 12303 } 12304 case CTL_MSG_FINISH_IO: 12305 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 12306 free_io = 0; 12307 ctl_done(io); 12308 } else { 12309 free_io = 1; 12310 mtx_lock(&lun->lun_lock); 12311 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12312 ooa_links); 12313 ctl_check_blocked(lun); 12314 mtx_unlock(&lun->lun_lock); 12315 } 12316 break; 12317 case CTL_MSG_PERS_ACTION: 12318 ctl_hndl_per_res_out_on_other_sc( 12319 (union ctl_ha_msg *)&io->presio.pr_msg); 12320 free_io = 1; 12321 break; 12322 case CTL_MSG_BAD_JUJU: 12323 free_io = 0; 12324 ctl_done(io); 12325 break; 12326 case CTL_MSG_DATAMOVE: 12327 /* Only used in XFER mode */ 12328 free_io = 0; 12329 ctl_datamove_remote(io); 12330 break; 12331 case CTL_MSG_DATAMOVE_DONE: 12332 /* Only used in XFER mode */ 12333 free_io = 0; 12334 io->scsiio.be_move_done(io); 12335 break; 12336 default: 12337 free_io = 1; 12338 printf("%s: Invalid message type %d\n", 12339 __func__, io->io_hdr.msg_type); 12340 break; 12341 } 12342 if (free_io) 12343 ctl_free_io(io); 12344 12345} 12346 12347 12348/* 12349 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12350 * there is no match. 12351 */ 12352static ctl_lun_error_pattern 12353ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12354{ 12355 const struct ctl_cmd_entry *entry; 12356 ctl_lun_error_pattern filtered_pattern, pattern; 12357 12358 pattern = desc->error_pattern; 12359 12360 /* 12361 * XXX KDM we need more data passed into this function to match a 12362 * custom pattern, and we actually need to implement custom pattern 12363 * matching. 12364 */ 12365 if (pattern & CTL_LUN_PAT_CMD) 12366 return (CTL_LUN_PAT_CMD); 12367 12368 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12369 return (CTL_LUN_PAT_ANY); 12370 12371 entry = ctl_get_cmd_entry(ctsio, NULL); 12372 12373 filtered_pattern = entry->pattern & pattern; 12374 12375 /* 12376 * If the user requested specific flags in the pattern (e.g. 12377 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12378 * flags. 12379 * 12380 * If the user did not specify any flags, it doesn't matter whether 12381 * or not the command supports the flags. 12382 */ 12383 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12384 (pattern & ~CTL_LUN_PAT_MASK)) 12385 return (CTL_LUN_PAT_NONE); 12386 12387 /* 12388 * If the user asked for a range check, see if the requested LBA 12389 * range overlaps with this command's LBA range. 12390 */ 12391 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12392 uint64_t lba1; 12393 uint64_t len1; 12394 ctl_action action; 12395 int retval; 12396 12397 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12398 if (retval != 0) 12399 return (CTL_LUN_PAT_NONE); 12400 12401 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12402 desc->lba_range.len); 12403 /* 12404 * A "pass" means that the LBA ranges don't overlap, so 12405 * this doesn't match the user's range criteria. 12406 */ 12407 if (action == CTL_ACTION_PASS) 12408 return (CTL_LUN_PAT_NONE); 12409 } 12410 12411 return (filtered_pattern); 12412} 12413 12414static void 12415ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12416{ 12417 struct ctl_error_desc *desc, *desc2; 12418 12419 mtx_assert(&lun->lun_lock, MA_OWNED); 12420 12421 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12422 ctl_lun_error_pattern pattern; 12423 /* 12424 * Check to see whether this particular command matches 12425 * the pattern in the descriptor. 12426 */ 12427 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12428 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12429 continue; 12430 12431 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12432 case CTL_LUN_INJ_ABORTED: 12433 ctl_set_aborted(&io->scsiio); 12434 break; 12435 case CTL_LUN_INJ_MEDIUM_ERR: 12436 ctl_set_medium_error(&io->scsiio); 12437 break; 12438 case CTL_LUN_INJ_UA: 12439 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12440 * OCCURRED */ 12441 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12442 break; 12443 case CTL_LUN_INJ_CUSTOM: 12444 /* 12445 * We're assuming the user knows what he is doing. 12446 * Just copy the sense information without doing 12447 * checks. 12448 */ 12449 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12450 ctl_min(sizeof(desc->custom_sense), 12451 sizeof(io->scsiio.sense_data))); 12452 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12453 io->scsiio.sense_len = SSD_FULL_SIZE; 12454 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12455 break; 12456 case CTL_LUN_INJ_NONE: 12457 default: 12458 /* 12459 * If this is an error injection type we don't know 12460 * about, clear the continuous flag (if it is set) 12461 * so it will get deleted below. 12462 */ 12463 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12464 break; 12465 } 12466 /* 12467 * By default, each error injection action is a one-shot 12468 */ 12469 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12470 continue; 12471 12472 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12473 12474 free(desc, M_CTL); 12475 } 12476} 12477 12478#ifdef CTL_IO_DELAY 12479static void 12480ctl_datamove_timer_wakeup(void *arg) 12481{ 12482 union ctl_io *io; 12483 12484 io = (union ctl_io *)arg; 12485 12486 ctl_datamove(io); 12487} 12488#endif /* CTL_IO_DELAY */ 12489 12490void 12491ctl_datamove(union ctl_io *io) 12492{ 12493 void (*fe_datamove)(union ctl_io *io); 12494 12495 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12496 12497 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12498 12499#ifdef CTL_TIME_IO 12500 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12501 char str[256]; 12502 char path_str[64]; 12503 struct sbuf sb; 12504 12505 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12506 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12507 12508 sbuf_cat(&sb, path_str); 12509 switch (io->io_hdr.io_type) { 12510 case CTL_IO_SCSI: 12511 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12512 sbuf_printf(&sb, "\n"); 12513 sbuf_cat(&sb, path_str); 12514 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12515 io->scsiio.tag_num, io->scsiio.tag_type); 12516 break; 12517 case CTL_IO_TASK: 12518 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12519 "Tag Type: %d\n", io->taskio.task_action, 12520 io->taskio.tag_num, io->taskio.tag_type); 12521 break; 12522 default: 12523 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12524 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12525 break; 12526 } 12527 sbuf_cat(&sb, path_str); 12528 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12529 (intmax_t)time_uptime - io->io_hdr.start_time); 12530 sbuf_finish(&sb); 12531 printf("%s", sbuf_data(&sb)); 12532 } 12533#endif /* CTL_TIME_IO */ 12534 12535#ifdef CTL_IO_DELAY 12536 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12537 struct ctl_lun *lun; 12538 12539 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12540 12541 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12542 } else { 12543 struct ctl_lun *lun; 12544 12545 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12546 if ((lun != NULL) 12547 && (lun->delay_info.datamove_delay > 0)) { 12548 struct callout *callout; 12549 12550 callout = (struct callout *)&io->io_hdr.timer_bytes; 12551 callout_init(callout, /*mpsafe*/ 1); 12552 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12553 callout_reset(callout, 12554 lun->delay_info.datamove_delay * hz, 12555 ctl_datamove_timer_wakeup, io); 12556 if (lun->delay_info.datamove_type == 12557 CTL_DELAY_TYPE_ONESHOT) 12558 lun->delay_info.datamove_delay = 0; 12559 return; 12560 } 12561 } 12562#endif 12563 12564 /* 12565 * This command has been aborted. Set the port status, so we fail 12566 * the data move. 12567 */ 12568 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12569 printf("ctl_datamove: tag 0x%04x on (%ju:%d:%ju:%d) aborted\n", 12570 io->scsiio.tag_num,(uintmax_t)io->io_hdr.nexus.initid.id, 12571 io->io_hdr.nexus.targ_port, 12572 (uintmax_t)io->io_hdr.nexus.targ_target.id, 12573 io->io_hdr.nexus.targ_lun); 12574 io->io_hdr.port_status = 31337; 12575 /* 12576 * Note that the backend, in this case, will get the 12577 * callback in its context. In other cases it may get 12578 * called in the frontend's interrupt thread context. 12579 */ 12580 io->scsiio.be_move_done(io); 12581 return; 12582 } 12583 12584 /* Don't confuse frontend with zero length data move. */ 12585 if (io->scsiio.kern_data_len == 0) { 12586 io->scsiio.be_move_done(io); 12587 return; 12588 } 12589 12590 /* 12591 * If we're in XFER mode and this I/O is from the other shelf 12592 * controller, we need to send the DMA to the other side to 12593 * actually transfer the data to/from the host. In serialize only 12594 * mode the transfer happens below CTL and ctl_datamove() is only 12595 * called on the machine that originally received the I/O. 12596 */ 12597 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12598 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12599 union ctl_ha_msg msg; 12600 uint32_t sg_entries_sent; 12601 int do_sg_copy; 12602 int i; 12603 12604 memset(&msg, 0, sizeof(msg)); 12605 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12606 msg.hdr.original_sc = io->io_hdr.original_sc; 12607 msg.hdr.serializing_sc = io; 12608 msg.hdr.nexus = io->io_hdr.nexus; 12609 msg.dt.flags = io->io_hdr.flags; 12610 /* 12611 * We convert everything into a S/G list here. We can't 12612 * pass by reference, only by value between controllers. 12613 * So we can't pass a pointer to the S/G list, only as many 12614 * S/G entries as we can fit in here. If it's possible for 12615 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12616 * then we need to break this up into multiple transfers. 12617 */ 12618 if (io->scsiio.kern_sg_entries == 0) { 12619 msg.dt.kern_sg_entries = 1; 12620 /* 12621 * If this is in cached memory, flush the cache 12622 * before we send the DMA request to the other 12623 * controller. We want to do this in either the 12624 * read or the write case. The read case is 12625 * straightforward. In the write case, we want to 12626 * make sure nothing is in the local cache that 12627 * could overwrite the DMAed data. 12628 */ 12629 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12630 /* 12631 * XXX KDM use bus_dmamap_sync() here. 12632 */ 12633 } 12634 12635 /* 12636 * Convert to a physical address if this is a 12637 * virtual address. 12638 */ 12639 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12640 msg.dt.sg_list[0].addr = 12641 io->scsiio.kern_data_ptr; 12642 } else { 12643 /* 12644 * XXX KDM use busdma here! 12645 */ 12646#if 0 12647 msg.dt.sg_list[0].addr = (void *) 12648 vtophys(io->scsiio.kern_data_ptr); 12649#endif 12650 } 12651 12652 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12653 do_sg_copy = 0; 12654 } else { 12655 struct ctl_sg_entry *sgl; 12656 12657 do_sg_copy = 1; 12658 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12659 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 12660 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12661 /* 12662 * XXX KDM use bus_dmamap_sync() here. 12663 */ 12664 } 12665 } 12666 12667 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12668 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12669 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12670 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12671 msg.dt.sg_sequence = 0; 12672 12673 /* 12674 * Loop until we've sent all of the S/G entries. On the 12675 * other end, we'll recompose these S/G entries into one 12676 * contiguous list before passing it to the 12677 */ 12678 for (sg_entries_sent = 0; sg_entries_sent < 12679 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12680 msg.dt.cur_sg_entries = ctl_min((sizeof(msg.dt.sg_list)/ 12681 sizeof(msg.dt.sg_list[0])), 12682 msg.dt.kern_sg_entries - sg_entries_sent); 12683 12684 if (do_sg_copy != 0) { 12685 struct ctl_sg_entry *sgl; 12686 int j; 12687 12688 sgl = (struct ctl_sg_entry *) 12689 io->scsiio.kern_data_ptr; 12690 /* 12691 * If this is in cached memory, flush the cache 12692 * before we send the DMA request to the other 12693 * controller. We want to do this in either 12694 * the * read or the write case. The read 12695 * case is straightforward. In the write 12696 * case, we want to make sure nothing is 12697 * in the local cache that could overwrite 12698 * the DMAed data. 12699 */ 12700 12701 for (i = sg_entries_sent, j = 0; 12702 i < msg.dt.cur_sg_entries; i++, j++) { 12703 if ((io->io_hdr.flags & 12704 CTL_FLAG_NO_DATASYNC) == 0) { 12705 /* 12706 * XXX KDM use bus_dmamap_sync() 12707 */ 12708 } 12709 if ((io->io_hdr.flags & 12710 CTL_FLAG_BUS_ADDR) == 0) { 12711 /* 12712 * XXX KDM use busdma. 12713 */ 12714#if 0 12715 msg.dt.sg_list[j].addr =(void *) 12716 vtophys(sgl[i].addr); 12717#endif 12718 } else { 12719 msg.dt.sg_list[j].addr = 12720 sgl[i].addr; 12721 } 12722 msg.dt.sg_list[j].len = sgl[i].len; 12723 } 12724 } 12725 12726 sg_entries_sent += msg.dt.cur_sg_entries; 12727 if (sg_entries_sent >= msg.dt.kern_sg_entries) 12728 msg.dt.sg_last = 1; 12729 else 12730 msg.dt.sg_last = 0; 12731 12732 /* 12733 * XXX KDM drop and reacquire the lock here? 12734 */ 12735 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12736 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 12737 /* 12738 * XXX do something here. 12739 */ 12740 } 12741 12742 msg.dt.sent_sg_entries = sg_entries_sent; 12743 } 12744 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12745 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) 12746 ctl_failover_io(io, /*have_lock*/ 0); 12747 12748 } else { 12749 12750 /* 12751 * Lookup the fe_datamove() function for this particular 12752 * front end. 12753 */ 12754 fe_datamove = 12755 control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12756 12757 fe_datamove(io); 12758 } 12759} 12760 12761static void 12762ctl_send_datamove_done(union ctl_io *io, int have_lock) 12763{ 12764 union ctl_ha_msg msg; 12765 int isc_status; 12766 12767 memset(&msg, 0, sizeof(msg)); 12768 12769 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12770 msg.hdr.original_sc = io; 12771 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12772 msg.hdr.nexus = io->io_hdr.nexus; 12773 msg.hdr.status = io->io_hdr.status; 12774 msg.scsi.tag_num = io->scsiio.tag_num; 12775 msg.scsi.tag_type = io->scsiio.tag_type; 12776 msg.scsi.scsi_status = io->scsiio.scsi_status; 12777 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12778 sizeof(io->scsiio.sense_data)); 12779 msg.scsi.sense_len = io->scsiio.sense_len; 12780 msg.scsi.sense_residual = io->scsiio.sense_residual; 12781 msg.scsi.fetd_status = io->io_hdr.port_status; 12782 msg.scsi.residual = io->scsiio.residual; 12783 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12784 12785 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12786 ctl_failover_io(io, /*have_lock*/ have_lock); 12787 return; 12788 } 12789 12790 isc_status = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0); 12791 if (isc_status > CTL_HA_STATUS_SUCCESS) { 12792 /* XXX do something if this fails */ 12793 } 12794 12795} 12796 12797/* 12798 * The DMA to the remote side is done, now we need to tell the other side 12799 * we're done so it can continue with its data movement. 12800 */ 12801static void 12802ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12803{ 12804 union ctl_io *io; 12805 12806 io = rq->context; 12807 12808 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12809 printf("%s: ISC DMA write failed with error %d", __func__, 12810 rq->ret); 12811 ctl_set_internal_failure(&io->scsiio, 12812 /*sks_valid*/ 1, 12813 /*retry_count*/ rq->ret); 12814 } 12815 12816 ctl_dt_req_free(rq); 12817 12818 /* 12819 * In this case, we had to malloc the memory locally. Free it. 12820 */ 12821 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12822 int i; 12823 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12824 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12825 } 12826 /* 12827 * The data is in local and remote memory, so now we need to send 12828 * status (good or back) back to the other side. 12829 */ 12830 ctl_send_datamove_done(io, /*have_lock*/ 0); 12831} 12832 12833/* 12834 * We've moved the data from the host/controller into local memory. Now we 12835 * need to push it over to the remote controller's memory. 12836 */ 12837static int 12838ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12839{ 12840 int retval; 12841 12842 retval = 0; 12843 12844 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12845 ctl_datamove_remote_write_cb); 12846 12847 return (retval); 12848} 12849 12850static void 12851ctl_datamove_remote_write(union ctl_io *io) 12852{ 12853 int retval; 12854 void (*fe_datamove)(union ctl_io *io); 12855 12856 /* 12857 * - Get the data from the host/HBA into local memory. 12858 * - DMA memory from the local controller to the remote controller. 12859 * - Send status back to the remote controller. 12860 */ 12861 12862 retval = ctl_datamove_remote_sgl_setup(io); 12863 if (retval != 0) 12864 return; 12865 12866 /* Switch the pointer over so the FETD knows what to do */ 12867 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12868 12869 /* 12870 * Use a custom move done callback, since we need to send completion 12871 * back to the other controller, not to the backend on this side. 12872 */ 12873 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12874 12875 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12876 12877 fe_datamove(io); 12878 12879 return; 12880 12881} 12882 12883static int 12884ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12885{ 12886#if 0 12887 char str[256]; 12888 char path_str[64]; 12889 struct sbuf sb; 12890#endif 12891 12892 /* 12893 * In this case, we had to malloc the memory locally. Free it. 12894 */ 12895 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12896 int i; 12897 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12898 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12899 } 12900 12901#if 0 12902 scsi_path_string(io, path_str, sizeof(path_str)); 12903 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12904 sbuf_cat(&sb, path_str); 12905 scsi_command_string(&io->scsiio, NULL, &sb); 12906 sbuf_printf(&sb, "\n"); 12907 sbuf_cat(&sb, path_str); 12908 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12909 io->scsiio.tag_num, io->scsiio.tag_type); 12910 sbuf_cat(&sb, path_str); 12911 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12912 io->io_hdr.flags, io->io_hdr.status); 12913 sbuf_finish(&sb); 12914 printk("%s", sbuf_data(&sb)); 12915#endif 12916 12917 12918 /* 12919 * The read is done, now we need to send status (good or bad) back 12920 * to the other side. 12921 */ 12922 ctl_send_datamove_done(io, /*have_lock*/ 0); 12923 12924 return (0); 12925} 12926 12927static void 12928ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12929{ 12930 union ctl_io *io; 12931 void (*fe_datamove)(union ctl_io *io); 12932 12933 io = rq->context; 12934 12935 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12936 printf("%s: ISC DMA read failed with error %d", __func__, 12937 rq->ret); 12938 ctl_set_internal_failure(&io->scsiio, 12939 /*sks_valid*/ 1, 12940 /*retry_count*/ rq->ret); 12941 } 12942 12943 ctl_dt_req_free(rq); 12944 12945 /* Switch the pointer over so the FETD knows what to do */ 12946 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12947 12948 /* 12949 * Use a custom move done callback, since we need to send completion 12950 * back to the other controller, not to the backend on this side. 12951 */ 12952 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12953 12954 /* XXX KDM add checks like the ones in ctl_datamove? */ 12955 12956 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12957 12958 fe_datamove(io); 12959} 12960 12961static int 12962ctl_datamove_remote_sgl_setup(union ctl_io *io) 12963{ 12964 struct ctl_sg_entry *local_sglist, *remote_sglist; 12965 struct ctl_sg_entry *local_dma_sglist, *remote_dma_sglist; 12966 struct ctl_softc *softc; 12967 int retval; 12968 int i; 12969 12970 retval = 0; 12971 softc = control_softc; 12972 12973 local_sglist = io->io_hdr.local_sglist; 12974 local_dma_sglist = io->io_hdr.local_dma_sglist; 12975 remote_sglist = io->io_hdr.remote_sglist; 12976 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 12977 12978 if (io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) { 12979 for (i = 0; i < io->scsiio.kern_sg_entries; i++) { 12980 local_sglist[i].len = remote_sglist[i].len; 12981 12982 /* 12983 * XXX Detect the situation where the RS-level I/O 12984 * redirector on the other side has already read the 12985 * data off of the AOR RS on this side, and 12986 * transferred it to remote (mirror) memory on the 12987 * other side. Since we already have the data in 12988 * memory here, we just need to use it. 12989 * 12990 * XXX KDM this can probably be removed once we 12991 * get the cache device code in and take the 12992 * current AOR implementation out. 12993 */ 12994#ifdef NEEDTOPORT 12995 if ((remote_sglist[i].addr >= 12996 (void *)vtophys(softc->mirr->addr)) 12997 && (remote_sglist[i].addr < 12998 ((void *)vtophys(softc->mirr->addr) + 12999 CacheMirrorOffset))) { 13000 local_sglist[i].addr = remote_sglist[i].addr - 13001 CacheMirrorOffset; 13002 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13003 CTL_FLAG_DATA_IN) 13004 io->io_hdr.flags |= CTL_FLAG_REDIR_DONE; 13005 } else { 13006 local_sglist[i].addr = remote_sglist[i].addr + 13007 CacheMirrorOffset; 13008 } 13009#endif 13010#if 0 13011 printf("%s: local %p, remote %p, len %d\n", 13012 __func__, local_sglist[i].addr, 13013 remote_sglist[i].addr, local_sglist[i].len); 13014#endif 13015 } 13016 } else { 13017 uint32_t len_to_go; 13018 13019 /* 13020 * In this case, we don't have automatically allocated 13021 * memory for this I/O on this controller. This typically 13022 * happens with internal CTL I/O -- e.g. inquiry, mode 13023 * sense, etc. Anything coming from RAIDCore will have 13024 * a mirror area available. 13025 */ 13026 len_to_go = io->scsiio.kern_data_len; 13027 13028 /* 13029 * Clear the no datasync flag, we have to use malloced 13030 * buffers. 13031 */ 13032 io->io_hdr.flags &= ~CTL_FLAG_NO_DATASYNC; 13033 13034 /* 13035 * The difficult thing here is that the size of the various 13036 * S/G segments may be different than the size from the 13037 * remote controller. That'll make it harder when DMAing 13038 * the data back to the other side. 13039 */ 13040 for (i = 0; (i < sizeof(io->io_hdr.remote_sglist) / 13041 sizeof(io->io_hdr.remote_sglist[0])) && 13042 (len_to_go > 0); i++) { 13043 local_sglist[i].len = ctl_min(len_to_go, 131072); 13044 CTL_SIZE_8B(local_dma_sglist[i].len, 13045 local_sglist[i].len); 13046 local_sglist[i].addr = 13047 malloc(local_dma_sglist[i].len, M_CTL,M_WAITOK); 13048 13049 local_dma_sglist[i].addr = local_sglist[i].addr; 13050 13051 if (local_sglist[i].addr == NULL) { 13052 int j; 13053 13054 printf("malloc failed for %zd bytes!", 13055 local_dma_sglist[i].len); 13056 for (j = 0; j < i; j++) { 13057 free(local_sglist[j].addr, M_CTL); 13058 } 13059 ctl_set_internal_failure(&io->scsiio, 13060 /*sks_valid*/ 1, 13061 /*retry_count*/ 4857); 13062 retval = 1; 13063 goto bailout_error; 13064 13065 } 13066 /* XXX KDM do we need a sync here? */ 13067 13068 len_to_go -= local_sglist[i].len; 13069 } 13070 /* 13071 * Reset the number of S/G entries accordingly. The 13072 * original number of S/G entries is available in 13073 * rem_sg_entries. 13074 */ 13075 io->scsiio.kern_sg_entries = i; 13076 13077#if 0 13078 printf("%s: kern_sg_entries = %d\n", __func__, 13079 io->scsiio.kern_sg_entries); 13080 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13081 printf("%s: sg[%d] = %p, %d (DMA: %d)\n", __func__, i, 13082 local_sglist[i].addr, local_sglist[i].len, 13083 local_dma_sglist[i].len); 13084#endif 13085 } 13086 13087 13088 return (retval); 13089 13090bailout_error: 13091 13092 ctl_send_datamove_done(io, /*have_lock*/ 0); 13093 13094 return (retval); 13095} 13096 13097static int 13098ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 13099 ctl_ha_dt_cb callback) 13100{ 13101 struct ctl_ha_dt_req *rq; 13102 struct ctl_sg_entry *remote_sglist, *local_sglist; 13103 struct ctl_sg_entry *remote_dma_sglist, *local_dma_sglist; 13104 uint32_t local_used, remote_used, total_used; 13105 int retval; 13106 int i, j; 13107 13108 retval = 0; 13109 13110 rq = ctl_dt_req_alloc(); 13111 13112 /* 13113 * If we failed to allocate the request, and if the DMA didn't fail 13114 * anyway, set busy status. This is just a resource allocation 13115 * failure. 13116 */ 13117 if ((rq == NULL) 13118 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)) 13119 ctl_set_busy(&io->scsiio); 13120 13121 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 13122 13123 if (rq != NULL) 13124 ctl_dt_req_free(rq); 13125 13126 /* 13127 * The data move failed. We need to return status back 13128 * to the other controller. No point in trying to DMA 13129 * data to the remote controller. 13130 */ 13131 13132 ctl_send_datamove_done(io, /*have_lock*/ 0); 13133 13134 retval = 1; 13135 13136 goto bailout; 13137 } 13138 13139 local_sglist = io->io_hdr.local_sglist; 13140 local_dma_sglist = io->io_hdr.local_dma_sglist; 13141 remote_sglist = io->io_hdr.remote_sglist; 13142 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13143 local_used = 0; 13144 remote_used = 0; 13145 total_used = 0; 13146 13147 if (io->io_hdr.flags & CTL_FLAG_REDIR_DONE) { 13148 rq->ret = CTL_HA_STATUS_SUCCESS; 13149 rq->context = io; 13150 callback(rq); 13151 goto bailout; 13152 } 13153 13154 /* 13155 * Pull/push the data over the wire from/to the other controller. 13156 * This takes into account the possibility that the local and 13157 * remote sglists may not be identical in terms of the size of 13158 * the elements and the number of elements. 13159 * 13160 * One fundamental assumption here is that the length allocated for 13161 * both the local and remote sglists is identical. Otherwise, we've 13162 * essentially got a coding error of some sort. 13163 */ 13164 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 13165 int isc_ret; 13166 uint32_t cur_len, dma_length; 13167 uint8_t *tmp_ptr; 13168 13169 rq->id = CTL_HA_DATA_CTL; 13170 rq->command = command; 13171 rq->context = io; 13172 13173 /* 13174 * Both pointers should be aligned. But it is possible 13175 * that the allocation length is not. They should both 13176 * also have enough slack left over at the end, though, 13177 * to round up to the next 8 byte boundary. 13178 */ 13179 cur_len = ctl_min(local_sglist[i].len - local_used, 13180 remote_sglist[j].len - remote_used); 13181 13182 /* 13183 * In this case, we have a size issue and need to decrease 13184 * the size, except in the case where we actually have less 13185 * than 8 bytes left. In that case, we need to increase 13186 * the DMA length to get the last bit. 13187 */ 13188 if ((cur_len & 0x7) != 0) { 13189 if (cur_len > 0x7) { 13190 cur_len = cur_len - (cur_len & 0x7); 13191 dma_length = cur_len; 13192 } else { 13193 CTL_SIZE_8B(dma_length, cur_len); 13194 } 13195 13196 } else 13197 dma_length = cur_len; 13198 13199 /* 13200 * If we had to allocate memory for this I/O, instead of using 13201 * the non-cached mirror memory, we'll need to flush the cache 13202 * before trying to DMA to the other controller. 13203 * 13204 * We could end up doing this multiple times for the same 13205 * segment if we have a larger local segment than remote 13206 * segment. That shouldn't be an issue. 13207 */ 13208 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 13209 /* 13210 * XXX KDM use bus_dmamap_sync() here. 13211 */ 13212 } 13213 13214 rq->size = dma_length; 13215 13216 tmp_ptr = (uint8_t *)local_sglist[i].addr; 13217 tmp_ptr += local_used; 13218 13219 /* Use physical addresses when talking to ISC hardware */ 13220 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 13221 /* XXX KDM use busdma */ 13222#if 0 13223 rq->local = vtophys(tmp_ptr); 13224#endif 13225 } else 13226 rq->local = tmp_ptr; 13227 13228 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 13229 tmp_ptr += remote_used; 13230 rq->remote = tmp_ptr; 13231 13232 rq->callback = NULL; 13233 13234 local_used += cur_len; 13235 if (local_used >= local_sglist[i].len) { 13236 i++; 13237 local_used = 0; 13238 } 13239 13240 remote_used += cur_len; 13241 if (remote_used >= remote_sglist[j].len) { 13242 j++; 13243 remote_used = 0; 13244 } 13245 total_used += cur_len; 13246 13247 if (total_used >= io->scsiio.kern_data_len) 13248 rq->callback = callback; 13249 13250 if ((rq->size & 0x7) != 0) { 13251 printf("%s: warning: size %d is not on 8b boundary\n", 13252 __func__, rq->size); 13253 } 13254 if (((uintptr_t)rq->local & 0x7) != 0) { 13255 printf("%s: warning: local %p not on 8b boundary\n", 13256 __func__, rq->local); 13257 } 13258 if (((uintptr_t)rq->remote & 0x7) != 0) { 13259 printf("%s: warning: remote %p not on 8b boundary\n", 13260 __func__, rq->local); 13261 } 13262#if 0 13263 printf("%s: %s: local %#x remote %#x size %d\n", __func__, 13264 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13265 rq->local, rq->remote, rq->size); 13266#endif 13267 13268 isc_ret = ctl_dt_single(rq); 13269 if (isc_ret == CTL_HA_STATUS_WAIT) 13270 continue; 13271 13272 if (isc_ret == CTL_HA_STATUS_DISCONNECT) { 13273 rq->ret = CTL_HA_STATUS_SUCCESS; 13274 } else { 13275 rq->ret = isc_ret; 13276 } 13277 callback(rq); 13278 goto bailout; 13279 } 13280 13281bailout: 13282 return (retval); 13283 13284} 13285 13286static void 13287ctl_datamove_remote_read(union ctl_io *io) 13288{ 13289 int retval; 13290 int i; 13291 13292 /* 13293 * This will send an error to the other controller in the case of a 13294 * failure. 13295 */ 13296 retval = ctl_datamove_remote_sgl_setup(io); 13297 if (retval != 0) 13298 return; 13299 13300 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13301 ctl_datamove_remote_read_cb); 13302 if ((retval != 0) 13303 && ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0)) { 13304 /* 13305 * Make sure we free memory if there was an error.. The 13306 * ctl_datamove_remote_xfer() function will send the 13307 * datamove done message, or call the callback with an 13308 * error if there is a problem. 13309 */ 13310 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13311 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13312 } 13313 13314 return; 13315} 13316 13317/* 13318 * Process a datamove request from the other controller. This is used for 13319 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13320 * first. Once that is complete, the data gets DMAed into the remote 13321 * controller's memory. For reads, we DMA from the remote controller's 13322 * memory into our memory first, and then move it out to the FETD. 13323 */ 13324static void 13325ctl_datamove_remote(union ctl_io *io) 13326{ 13327 struct ctl_softc *softc; 13328 13329 softc = control_softc; 13330 13331 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 13332 13333 /* 13334 * Note that we look for an aborted I/O here, but don't do some of 13335 * the other checks that ctl_datamove() normally does. 13336 * We don't need to run the datamove delay code, since that should 13337 * have been done if need be on the other controller. 13338 */ 13339 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13340 printf("%s: tag 0x%04x on (%d:%d:%d:%d) aborted\n", __func__, 13341 io->scsiio.tag_num, io->io_hdr.nexus.initid.id, 13342 io->io_hdr.nexus.targ_port, 13343 io->io_hdr.nexus.targ_target.id, 13344 io->io_hdr.nexus.targ_lun); 13345 io->io_hdr.port_status = 31338; 13346 ctl_send_datamove_done(io, /*have_lock*/ 0); 13347 return; 13348 } 13349 13350 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) { 13351 ctl_datamove_remote_write(io); 13352 } else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN){ 13353 ctl_datamove_remote_read(io); 13354 } else { 13355 union ctl_ha_msg msg; 13356 struct scsi_sense_data *sense; 13357 uint8_t sks[3]; 13358 int retry_count; 13359 13360 memset(&msg, 0, sizeof(msg)); 13361 13362 msg.hdr.msg_type = CTL_MSG_BAD_JUJU; 13363 msg.hdr.status = CTL_SCSI_ERROR; 13364 msg.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 13365 13366 retry_count = 4243; 13367 13368 sense = &msg.scsi.sense_data; 13369 sks[0] = SSD_SCS_VALID; 13370 sks[1] = (retry_count >> 8) & 0xff; 13371 sks[2] = retry_count & 0xff; 13372 13373 /* "Internal target failure" */ 13374 scsi_set_sense_data(sense, 13375 /*sense_format*/ SSD_TYPE_NONE, 13376 /*current_error*/ 1, 13377 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 13378 /*asc*/ 0x44, 13379 /*ascq*/ 0x00, 13380 /*type*/ SSD_ELEM_SKS, 13381 /*size*/ sizeof(sks), 13382 /*data*/ sks, 13383 SSD_ELEM_NONE); 13384 13385 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13386 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13387 ctl_failover_io(io, /*have_lock*/ 1); 13388 return; 13389 } 13390 13391 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0) > 13392 CTL_HA_STATUS_SUCCESS) { 13393 /* XXX KDM what to do if this fails? */ 13394 } 13395 return; 13396 } 13397 13398} 13399 13400static int 13401ctl_process_done(union ctl_io *io) 13402{ 13403 struct ctl_lun *lun; 13404 struct ctl_softc *ctl_softc = control_softc; 13405 void (*fe_done)(union ctl_io *io); 13406 uint32_t targ_port = ctl_port_idx(io->io_hdr.nexus.targ_port); 13407 13408 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13409 13410 fe_done = 13411 control_softc->ctl_ports[targ_port]->fe_done; 13412 13413#ifdef CTL_TIME_IO 13414 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13415 char str[256]; 13416 char path_str[64]; 13417 struct sbuf sb; 13418 13419 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13420 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13421 13422 sbuf_cat(&sb, path_str); 13423 switch (io->io_hdr.io_type) { 13424 case CTL_IO_SCSI: 13425 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13426 sbuf_printf(&sb, "\n"); 13427 sbuf_cat(&sb, path_str); 13428 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13429 io->scsiio.tag_num, io->scsiio.tag_type); 13430 break; 13431 case CTL_IO_TASK: 13432 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13433 "Tag Type: %d\n", io->taskio.task_action, 13434 io->taskio.tag_num, io->taskio.tag_type); 13435 break; 13436 default: 13437 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13438 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13439 break; 13440 } 13441 sbuf_cat(&sb, path_str); 13442 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13443 (intmax_t)time_uptime - io->io_hdr.start_time); 13444 sbuf_finish(&sb); 13445 printf("%s", sbuf_data(&sb)); 13446 } 13447#endif /* CTL_TIME_IO */ 13448 13449 switch (io->io_hdr.io_type) { 13450 case CTL_IO_SCSI: 13451 break; 13452 case CTL_IO_TASK: 13453 if (bootverbose || (ctl_debug & CTL_DEBUG_INFO)) 13454 ctl_io_error_print(io, NULL); 13455 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 13456 ctl_free_io(io); 13457 else 13458 fe_done(io); 13459 return (CTL_RETVAL_COMPLETE); 13460 default: 13461 panic("ctl_process_done: invalid io type %d\n", 13462 io->io_hdr.io_type); 13463 break; /* NOTREACHED */ 13464 } 13465 13466 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13467 if (lun == NULL) { 13468 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13469 io->io_hdr.nexus.targ_mapped_lun)); 13470 goto bailout; 13471 } 13472 13473 mtx_lock(&lun->lun_lock); 13474 13475 /* 13476 * Check to see if we have any errors to inject here. We only 13477 * inject errors for commands that don't already have errors set. 13478 */ 13479 if ((STAILQ_FIRST(&lun->error_list) != NULL) && 13480 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) && 13481 ((io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0)) 13482 ctl_inject_error(lun, io); 13483 13484 /* 13485 * XXX KDM how do we treat commands that aren't completed 13486 * successfully? 13487 * 13488 * XXX KDM should we also track I/O latency? 13489 */ 13490 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13491 io->io_hdr.io_type == CTL_IO_SCSI) { 13492#ifdef CTL_TIME_IO 13493 struct bintime cur_bt; 13494#endif 13495 int type; 13496 13497 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13498 CTL_FLAG_DATA_IN) 13499 type = CTL_STATS_READ; 13500 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13501 CTL_FLAG_DATA_OUT) 13502 type = CTL_STATS_WRITE; 13503 else 13504 type = CTL_STATS_NO_IO; 13505 13506 lun->stats.ports[targ_port].bytes[type] += 13507 io->scsiio.kern_total_len; 13508 lun->stats.ports[targ_port].operations[type]++; 13509#ifdef CTL_TIME_IO 13510 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13511 &io->io_hdr.dma_bt); 13512 lun->stats.ports[targ_port].num_dmas[type] += 13513 io->io_hdr.num_dmas; 13514 getbintime(&cur_bt); 13515 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13516 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13517#endif 13518 } 13519 13520 /* 13521 * Remove this from the OOA queue. 13522 */ 13523 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13524 13525 /* 13526 * Run through the blocked queue on this LUN and see if anything 13527 * has become unblocked, now that this transaction is done. 13528 */ 13529 ctl_check_blocked(lun); 13530 13531 /* 13532 * If the LUN has been invalidated, free it if there is nothing 13533 * left on its OOA queue. 13534 */ 13535 if ((lun->flags & CTL_LUN_INVALID) 13536 && TAILQ_EMPTY(&lun->ooa_queue)) { 13537 mtx_unlock(&lun->lun_lock); 13538 mtx_lock(&ctl_softc->ctl_lock); 13539 ctl_free_lun(lun); 13540 mtx_unlock(&ctl_softc->ctl_lock); 13541 } else 13542 mtx_unlock(&lun->lun_lock); 13543 13544bailout: 13545 13546 /* 13547 * If this command has been aborted, make sure we set the status 13548 * properly. The FETD is responsible for freeing the I/O and doing 13549 * whatever it needs to do to clean up its state. 13550 */ 13551 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13552 ctl_set_task_aborted(&io->scsiio); 13553 13554 /* 13555 * If enabled, print command error status. 13556 * We don't print UAs unless debugging was enabled explicitly. 13557 */ 13558 do { 13559 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) 13560 break; 13561 if (!bootverbose && (ctl_debug & CTL_DEBUG_INFO) == 0) 13562 break; 13563 if ((ctl_debug & CTL_DEBUG_INFO) == 0 && 13564 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SCSI_ERROR) && 13565 (io->scsiio.scsi_status == SCSI_STATUS_CHECK_COND)) { 13566 int error_code, sense_key, asc, ascq; 13567 13568 scsi_extract_sense_len(&io->scsiio.sense_data, 13569 io->scsiio.sense_len, &error_code, &sense_key, 13570 &asc, &ascq, /*show_errors*/ 0); 13571 if (sense_key == SSD_KEY_UNIT_ATTENTION) 13572 break; 13573 } 13574 13575 ctl_io_error_print(io, NULL); 13576 } while (0); 13577 13578 /* 13579 * Tell the FETD or the other shelf controller we're done with this 13580 * command. Note that only SCSI commands get to this point. Task 13581 * management commands are completed above. 13582 * 13583 * We only send status to the other controller if we're in XFER 13584 * mode. In SER_ONLY mode, the I/O is done on the controller that 13585 * received the I/O (from CTL's perspective), and so the status is 13586 * generated there. 13587 * 13588 * XXX KDM if we hold the lock here, we could cause a deadlock 13589 * if the frontend comes back in in this context to queue 13590 * something. 13591 */ 13592 if ((ctl_softc->ha_mode == CTL_HA_MODE_XFER) 13593 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 13594 union ctl_ha_msg msg; 13595 13596 memset(&msg, 0, sizeof(msg)); 13597 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13598 msg.hdr.original_sc = io->io_hdr.original_sc; 13599 msg.hdr.nexus = io->io_hdr.nexus; 13600 msg.hdr.status = io->io_hdr.status; 13601 msg.scsi.scsi_status = io->scsiio.scsi_status; 13602 msg.scsi.tag_num = io->scsiio.tag_num; 13603 msg.scsi.tag_type = io->scsiio.tag_type; 13604 msg.scsi.sense_len = io->scsiio.sense_len; 13605 msg.scsi.sense_residual = io->scsiio.sense_residual; 13606 msg.scsi.residual = io->scsiio.residual; 13607 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13608 sizeof(io->scsiio.sense_data)); 13609 /* 13610 * We copy this whether or not this is an I/O-related 13611 * command. Otherwise, we'd have to go and check to see 13612 * whether it's a read/write command, and it really isn't 13613 * worth it. 13614 */ 13615 memcpy(&msg.scsi.lbalen, 13616 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 13617 sizeof(msg.scsi.lbalen)); 13618 13619 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13620 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13621 /* XXX do something here */ 13622 } 13623 13624 ctl_free_io(io); 13625 } else 13626 fe_done(io); 13627 13628 return (CTL_RETVAL_COMPLETE); 13629} 13630 13631#ifdef CTL_WITH_CA 13632/* 13633 * Front end should call this if it doesn't do autosense. When the request 13634 * sense comes back in from the initiator, we'll dequeue this and send it. 13635 */ 13636int 13637ctl_queue_sense(union ctl_io *io) 13638{ 13639 struct ctl_lun *lun; 13640 struct ctl_softc *ctl_softc; 13641 uint32_t initidx, targ_lun; 13642 13643 ctl_softc = control_softc; 13644 13645 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13646 13647 /* 13648 * LUN lookup will likely move to the ctl_work_thread() once we 13649 * have our new queueing infrastructure (that doesn't put things on 13650 * a per-LUN queue initially). That is so that we can handle 13651 * things like an INQUIRY to a LUN that we don't have enabled. We 13652 * can't deal with that right now. 13653 */ 13654 mtx_lock(&ctl_softc->ctl_lock); 13655 13656 /* 13657 * If we don't have a LUN for this, just toss the sense 13658 * information. 13659 */ 13660 targ_lun = io->io_hdr.nexus.targ_lun; 13661 targ_lun = ctl_map_lun(io->io_hdr.nexus.targ_port, targ_lun); 13662 if ((targ_lun < CTL_MAX_LUNS) 13663 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 13664 lun = ctl_softc->ctl_luns[targ_lun]; 13665 else 13666 goto bailout; 13667 13668 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13669 13670 mtx_lock(&lun->lun_lock); 13671 /* 13672 * Already have CA set for this LUN...toss the sense information. 13673 */ 13674 if (ctl_is_set(lun->have_ca, initidx)) { 13675 mtx_unlock(&lun->lun_lock); 13676 goto bailout; 13677 } 13678 13679 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13680 ctl_min(sizeof(lun->pending_sense[initidx]), 13681 sizeof(io->scsiio.sense_data))); 13682 ctl_set_mask(lun->have_ca, initidx); 13683 mtx_unlock(&lun->lun_lock); 13684 13685bailout: 13686 mtx_unlock(&ctl_softc->ctl_lock); 13687 13688 ctl_free_io(io); 13689 13690 return (CTL_RETVAL_COMPLETE); 13691} 13692#endif 13693 13694/* 13695 * Primary command inlet from frontend ports. All SCSI and task I/O 13696 * requests must go through this function. 13697 */ 13698int 13699ctl_queue(union ctl_io *io) 13700{ 13701 struct ctl_softc *ctl_softc; 13702 13703 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13704 13705 ctl_softc = control_softc; 13706 13707#ifdef CTL_TIME_IO 13708 io->io_hdr.start_time = time_uptime; 13709 getbintime(&io->io_hdr.start_bt); 13710#endif /* CTL_TIME_IO */ 13711 13712 /* Map FE-specific LUN ID into global one. */ 13713 io->io_hdr.nexus.targ_mapped_lun = 13714 ctl_map_lun(io->io_hdr.nexus.targ_port, io->io_hdr.nexus.targ_lun); 13715 13716 switch (io->io_hdr.io_type) { 13717 case CTL_IO_SCSI: 13718 case CTL_IO_TASK: 13719 if (ctl_debug & CTL_DEBUG_CDB) 13720 ctl_io_print(io); 13721 ctl_enqueue_incoming(io); 13722 break; 13723 default: 13724 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13725 return (EINVAL); 13726 } 13727 13728 return (CTL_RETVAL_COMPLETE); 13729} 13730 13731#ifdef CTL_IO_DELAY 13732static void 13733ctl_done_timer_wakeup(void *arg) 13734{ 13735 union ctl_io *io; 13736 13737 io = (union ctl_io *)arg; 13738 ctl_done(io); 13739} 13740#endif /* CTL_IO_DELAY */ 13741 13742void 13743ctl_done(union ctl_io *io) 13744{ 13745 struct ctl_softc *ctl_softc; 13746 13747 ctl_softc = control_softc; 13748 13749 /* 13750 * Enable this to catch duplicate completion issues. 13751 */ 13752#if 0 13753 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13754 printf("%s: type %d msg %d cdb %x iptl: " 13755 "%d:%d:%d:%d tag 0x%04x " 13756 "flag %#x status %x\n", 13757 __func__, 13758 io->io_hdr.io_type, 13759 io->io_hdr.msg_type, 13760 io->scsiio.cdb[0], 13761 io->io_hdr.nexus.initid.id, 13762 io->io_hdr.nexus.targ_port, 13763 io->io_hdr.nexus.targ_target.id, 13764 io->io_hdr.nexus.targ_lun, 13765 (io->io_hdr.io_type == 13766 CTL_IO_TASK) ? 13767 io->taskio.tag_num : 13768 io->scsiio.tag_num, 13769 io->io_hdr.flags, 13770 io->io_hdr.status); 13771 } else 13772 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13773#endif 13774 13775 /* 13776 * This is an internal copy of an I/O, and should not go through 13777 * the normal done processing logic. 13778 */ 13779 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13780 return; 13781 13782 /* 13783 * We need to send a msg to the serializing shelf to finish the IO 13784 * as well. We don't send a finish message to the other shelf if 13785 * this is a task management command. Task management commands 13786 * aren't serialized in the OOA queue, but rather just executed on 13787 * both shelf controllers for commands that originated on that 13788 * controller. 13789 */ 13790 if ((io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC) 13791 && (io->io_hdr.io_type != CTL_IO_TASK)) { 13792 union ctl_ha_msg msg_io; 13793 13794 msg_io.hdr.msg_type = CTL_MSG_FINISH_IO; 13795 msg_io.hdr.serializing_sc = io->io_hdr.serializing_sc; 13796 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_io, 13797 sizeof(msg_io), 0 ) != CTL_HA_STATUS_SUCCESS) { 13798 } 13799 /* continue on to finish IO */ 13800 } 13801#ifdef CTL_IO_DELAY 13802 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13803 struct ctl_lun *lun; 13804 13805 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13806 13807 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13808 } else { 13809 struct ctl_lun *lun; 13810 13811 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13812 13813 if ((lun != NULL) 13814 && (lun->delay_info.done_delay > 0)) { 13815 struct callout *callout; 13816 13817 callout = (struct callout *)&io->io_hdr.timer_bytes; 13818 callout_init(callout, /*mpsafe*/ 1); 13819 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13820 callout_reset(callout, 13821 lun->delay_info.done_delay * hz, 13822 ctl_done_timer_wakeup, io); 13823 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13824 lun->delay_info.done_delay = 0; 13825 return; 13826 } 13827 } 13828#endif /* CTL_IO_DELAY */ 13829 13830 ctl_enqueue_done(io); 13831} 13832 13833int 13834ctl_isc(struct ctl_scsiio *ctsio) 13835{ 13836 struct ctl_lun *lun; 13837 int retval; 13838 13839 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13840 13841 CTL_DEBUG_PRINT(("ctl_isc: command: %02x\n", ctsio->cdb[0])); 13842 13843 CTL_DEBUG_PRINT(("ctl_isc: calling data_submit()\n")); 13844 13845 retval = lun->backend->data_submit((union ctl_io *)ctsio); 13846 13847 return (retval); 13848} 13849 13850 13851static void 13852ctl_work_thread(void *arg) 13853{ 13854 struct ctl_thread *thr = (struct ctl_thread *)arg; 13855 struct ctl_softc *softc = thr->ctl_softc; 13856 union ctl_io *io; 13857 int retval; 13858 13859 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13860 13861 for (;;) { 13862 retval = 0; 13863 13864 /* 13865 * We handle the queues in this order: 13866 * - ISC 13867 * - done queue (to free up resources, unblock other commands) 13868 * - RtR queue 13869 * - incoming queue 13870 * 13871 * If those queues are empty, we break out of the loop and 13872 * go to sleep. 13873 */ 13874 mtx_lock(&thr->queue_lock); 13875 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13876 if (io != NULL) { 13877 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13878 mtx_unlock(&thr->queue_lock); 13879 ctl_handle_isc(io); 13880 continue; 13881 } 13882 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13883 if (io != NULL) { 13884 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13885 /* clear any blocked commands, call fe_done */ 13886 mtx_unlock(&thr->queue_lock); 13887 retval = ctl_process_done(io); 13888 continue; 13889 } 13890 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13891 if (io != NULL) { 13892 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13893 mtx_unlock(&thr->queue_lock); 13894 if (io->io_hdr.io_type == CTL_IO_TASK) 13895 ctl_run_task(io); 13896 else 13897 ctl_scsiio_precheck(softc, &io->scsiio); 13898 continue; 13899 } 13900 if (!ctl_pause_rtr) { 13901 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13902 if (io != NULL) { 13903 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13904 mtx_unlock(&thr->queue_lock); 13905 retval = ctl_scsiio(&io->scsiio); 13906 if (retval != CTL_RETVAL_COMPLETE) 13907 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13908 continue; 13909 } 13910 } 13911 13912 /* Sleep until we have something to do. */ 13913 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13914 } 13915} 13916 13917static void 13918ctl_lun_thread(void *arg) 13919{ 13920 struct ctl_softc *softc = (struct ctl_softc *)arg; 13921 struct ctl_be_lun *be_lun; 13922 int retval; 13923 13924 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 13925 13926 for (;;) { 13927 retval = 0; 13928 mtx_lock(&softc->ctl_lock); 13929 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 13930 if (be_lun != NULL) { 13931 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 13932 mtx_unlock(&softc->ctl_lock); 13933 ctl_create_lun(be_lun); 13934 continue; 13935 } 13936 13937 /* Sleep until we have something to do. */ 13938 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 13939 PDROP | PRIBIO, "-", 0); 13940 } 13941} 13942 13943static void 13944ctl_thresh_thread(void *arg) 13945{ 13946 struct ctl_softc *softc = (struct ctl_softc *)arg; 13947 struct ctl_lun *lun; 13948 struct ctl_be_lun *be_lun; 13949 struct scsi_da_rw_recovery_page *rwpage; 13950 struct ctl_logical_block_provisioning_page *page; 13951 const char *attr; 13952 uint64_t thres, val; 13953 int i, e; 13954 13955 CTL_DEBUG_PRINT(("ctl_thresh_thread starting\n")); 13956 13957 for (;;) { 13958 mtx_lock(&softc->ctl_lock); 13959 STAILQ_FOREACH(lun, &softc->lun_list, links) { 13960 be_lun = lun->be_lun; 13961 if ((lun->flags & CTL_LUN_DISABLED) || 13962 (lun->flags & CTL_LUN_OFFLINE) || 13963 (be_lun->flags & CTL_LUN_FLAG_UNMAP) == 0 || 13964 lun->backend->lun_attr == NULL) 13965 continue; 13966 rwpage = &lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT]; 13967 if ((rwpage->byte8 & SMS_RWER_LBPERE) == 0) 13968 continue; 13969 e = 0; 13970 page = &lun->mode_pages.lbp_page[CTL_PAGE_CURRENT]; 13971 for (i = 0; i < CTL_NUM_LBP_THRESH; i++) { 13972 if ((page->descr[i].flags & SLBPPD_ENABLED) == 0) 13973 continue; 13974 thres = scsi_4btoul(page->descr[i].count); 13975 thres <<= CTL_LBP_EXPONENT; 13976 switch (page->descr[i].resource) { 13977 case 0x01: 13978 attr = "blocksavail"; 13979 break; 13980 case 0x02: 13981 attr = "blocksused"; 13982 break; 13983 case 0xf1: 13984 attr = "poolblocksavail"; 13985 break; 13986 case 0xf2: 13987 attr = "poolblocksused"; 13988 break; 13989 default: 13990 continue; 13991 } 13992 mtx_unlock(&softc->ctl_lock); // XXX 13993 val = lun->backend->lun_attr( 13994 lun->be_lun->be_lun, attr); 13995 mtx_lock(&softc->ctl_lock); 13996 if (val == UINT64_MAX) 13997 continue; 13998 if ((page->descr[i].flags & SLBPPD_ARMING_MASK) 13999 == SLBPPD_ARMING_INC) 14000 e |= (val >= thres); 14001 else 14002 e |= (val <= thres); 14003 } 14004 mtx_lock(&lun->lun_lock); 14005 if (e) { 14006 if (lun->lasttpt == 0 || 14007 time_uptime - lun->lasttpt >= CTL_LBP_UA_PERIOD) { 14008 lun->lasttpt = time_uptime; 14009 for (i = 0; i < CTL_MAX_INITIATORS; i++) 14010 lun->pending_ua[i] |= 14011 CTL_UA_THIN_PROV_THRES; 14012 } 14013 } else { 14014 lun->lasttpt = 0; 14015 for (i = 0; i < CTL_MAX_INITIATORS; i++) 14016 lun->pending_ua[i] &= ~CTL_UA_THIN_PROV_THRES; 14017 } 14018 mtx_unlock(&lun->lun_lock); 14019 } 14020 mtx_unlock(&softc->ctl_lock); 14021 pause("-", CTL_LBP_PERIOD * hz); 14022 } 14023} 14024 14025static void 14026ctl_enqueue_incoming(union ctl_io *io) 14027{ 14028 struct ctl_softc *softc = control_softc; 14029 struct ctl_thread *thr; 14030 u_int idx; 14031 14032 idx = (io->io_hdr.nexus.targ_port * 127 + 14033 io->io_hdr.nexus.initid.id) % worker_threads; 14034 thr = &softc->threads[idx]; 14035 mtx_lock(&thr->queue_lock); 14036 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 14037 mtx_unlock(&thr->queue_lock); 14038 wakeup(thr); 14039} 14040 14041static void 14042ctl_enqueue_rtr(union ctl_io *io) 14043{ 14044 struct ctl_softc *softc = control_softc; 14045 struct ctl_thread *thr; 14046 14047 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14048 mtx_lock(&thr->queue_lock); 14049 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 14050 mtx_unlock(&thr->queue_lock); 14051 wakeup(thr); 14052} 14053 14054static void 14055ctl_enqueue_done(union ctl_io *io) 14056{ 14057 struct ctl_softc *softc = control_softc; 14058 struct ctl_thread *thr; 14059 14060 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14061 mtx_lock(&thr->queue_lock); 14062 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 14063 mtx_unlock(&thr->queue_lock); 14064 wakeup(thr); 14065} 14066 14067static void 14068ctl_enqueue_isc(union ctl_io *io) 14069{ 14070 struct ctl_softc *softc = control_softc; 14071 struct ctl_thread *thr; 14072 14073 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14074 mtx_lock(&thr->queue_lock); 14075 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 14076 mtx_unlock(&thr->queue_lock); 14077 wakeup(thr); 14078} 14079 14080/* Initialization and failover */ 14081 14082void 14083ctl_init_isc_msg(void) 14084{ 14085 printf("CTL: Still calling this thing\n"); 14086} 14087 14088/* 14089 * Init component 14090 * Initializes component into configuration defined by bootMode 14091 * (see hasc-sv.c) 14092 * returns hasc_Status: 14093 * OK 14094 * ERROR - fatal error 14095 */ 14096static ctl_ha_comp_status 14097ctl_isc_init(struct ctl_ha_component *c) 14098{ 14099 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14100 14101 c->status = ret; 14102 return ret; 14103} 14104 14105/* Start component 14106 * Starts component in state requested. If component starts successfully, 14107 * it must set its own state to the requestrd state 14108 * When requested state is HASC_STATE_HA, the component may refine it 14109 * by adding _SLAVE or _MASTER flags. 14110 * Currently allowed state transitions are: 14111 * UNKNOWN->HA - initial startup 14112 * UNKNOWN->SINGLE - initial startup when no parter detected 14113 * HA->SINGLE - failover 14114 * returns ctl_ha_comp_status: 14115 * OK - component successfully started in requested state 14116 * FAILED - could not start the requested state, failover may 14117 * be possible 14118 * ERROR - fatal error detected, no future startup possible 14119 */ 14120static ctl_ha_comp_status 14121ctl_isc_start(struct ctl_ha_component *c, ctl_ha_state state) 14122{ 14123 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14124 14125 printf("%s: go\n", __func__); 14126 14127 // UNKNOWN->HA or UNKNOWN->SINGLE (bootstrap) 14128 if (c->state == CTL_HA_STATE_UNKNOWN ) { 14129 control_softc->is_single = 0; 14130 if (ctl_ha_msg_create(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 14131 != CTL_HA_STATUS_SUCCESS) { 14132 printf("ctl_isc_start: ctl_ha_msg_create failed.\n"); 14133 ret = CTL_HA_COMP_STATUS_ERROR; 14134 } 14135 } else if (CTL_HA_STATE_IS_HA(c->state) 14136 && CTL_HA_STATE_IS_SINGLE(state)){ 14137 // HA->SINGLE transition 14138 ctl_failover(); 14139 control_softc->is_single = 1; 14140 } else { 14141 printf("ctl_isc_start:Invalid state transition %X->%X\n", 14142 c->state, state); 14143 ret = CTL_HA_COMP_STATUS_ERROR; 14144 } 14145 if (CTL_HA_STATE_IS_SINGLE(state)) 14146 control_softc->is_single = 1; 14147 14148 c->state = state; 14149 c->status = ret; 14150 return ret; 14151} 14152 14153/* 14154 * Quiesce component 14155 * The component must clear any error conditions (set status to OK) and 14156 * prepare itself to another Start call 14157 * returns ctl_ha_comp_status: 14158 * OK 14159 * ERROR 14160 */ 14161static ctl_ha_comp_status 14162ctl_isc_quiesce(struct ctl_ha_component *c) 14163{ 14164 int ret = CTL_HA_COMP_STATUS_OK; 14165 14166 ctl_pause_rtr = 1; 14167 c->status = ret; 14168 return ret; 14169} 14170 14171struct ctl_ha_component ctl_ha_component_ctlisc = 14172{ 14173 .name = "CTL ISC", 14174 .state = CTL_HA_STATE_UNKNOWN, 14175 .init = ctl_isc_init, 14176 .start = ctl_isc_start, 14177 .quiesce = ctl_isc_quiesce 14178}; 14179 14180/* 14181 * vim: ts=8 14182 */ 14183