ctl.c revision 275878
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 275878 2014-12-18 08:22:16Z 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 retval = CTL_RETVAL_COMPLETE; 5002 5003 5004 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 5005 /* 5006 * XXX KDM this shouldn't happen, but what if it does? 5007 */ 5008 if (io->io_hdr.io_type != CTL_IO_SCSI) 5009 panic("I/O type isn't CTL_IO_SCSI!"); 5010 5011 if ((io->io_hdr.port_status == 0) 5012 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5013 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)) 5014 io->io_hdr.status = CTL_SUCCESS; 5015 else if ((io->io_hdr.port_status != 0) 5016 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5017 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)){ 5018 /* 5019 * For hardware error sense keys, the sense key 5020 * specific value is defined to be a retry count, 5021 * but we use it to pass back an internal FETD 5022 * error code. XXX KDM Hopefully the FETD is only 5023 * using 16 bits for an error code, since that's 5024 * all the space we have in the sks field. 5025 */ 5026 ctl_set_internal_failure(&io->scsiio, 5027 /*sks_valid*/ 1, 5028 /*retry_count*/ 5029 io->io_hdr.port_status); 5030 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5031 free(io->scsiio.kern_data_ptr, M_CTL); 5032 ctl_done(io); 5033 goto bailout; 5034 } 5035 5036 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 5037 || ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 5038 || ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5039 /* 5040 * XXX KDM just assuming a single pointer here, and not a 5041 * S/G list. If we start using S/G lists for config data, 5042 * we'll need to know how to clean them up here as well. 5043 */ 5044 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5045 free(io->scsiio.kern_data_ptr, M_CTL); 5046 /* Hopefully the user has already set the status... */ 5047 ctl_done(io); 5048 } else { 5049 /* 5050 * XXX KDM now we need to continue data movement. Some 5051 * options: 5052 * - call ctl_scsiio() again? We don't do this for data 5053 * writes, because for those at least we know ahead of 5054 * time where the write will go and how long it is. For 5055 * config writes, though, that information is largely 5056 * contained within the write itself, thus we need to 5057 * parse out the data again. 5058 * 5059 * - Call some other function once the data is in? 5060 */ 5061 if (ctl_debug & CTL_DEBUG_CDB_DATA) 5062 ctl_data_print(io); 5063 5064 /* 5065 * XXX KDM call ctl_scsiio() again for now, and check flag 5066 * bits to see whether we're allocated or not. 5067 */ 5068 retval = ctl_scsiio(&io->scsiio); 5069 } 5070bailout: 5071 return (retval); 5072} 5073 5074/* 5075 * This gets called by a backend driver when it is done with a 5076 * data_submit method. 5077 */ 5078void 5079ctl_data_submit_done(union ctl_io *io) 5080{ 5081 /* 5082 * If the IO_CONT flag is set, we need to call the supplied 5083 * function to continue processing the I/O, instead of completing 5084 * the I/O just yet. 5085 * 5086 * If there is an error, though, we don't want to keep processing. 5087 * Instead, just send status back to the initiator. 5088 */ 5089 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5090 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5091 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5092 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5093 io->scsiio.io_cont(io); 5094 return; 5095 } 5096 ctl_done(io); 5097} 5098 5099/* 5100 * This gets called by a backend driver when it is done with a 5101 * configuration write. 5102 */ 5103void 5104ctl_config_write_done(union ctl_io *io) 5105{ 5106 uint8_t *buf; 5107 5108 /* 5109 * If the IO_CONT flag is set, we need to call the supplied 5110 * function to continue processing the I/O, instead of completing 5111 * the I/O just yet. 5112 * 5113 * If there is an error, though, we don't want to keep processing. 5114 * Instead, just send status back to the initiator. 5115 */ 5116 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5117 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5118 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5119 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5120 io->scsiio.io_cont(io); 5121 return; 5122 } 5123 /* 5124 * Since a configuration write can be done for commands that actually 5125 * have data allocated, like write buffer, and commands that have 5126 * no data, like start/stop unit, we need to check here. 5127 */ 5128 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5129 buf = io->scsiio.kern_data_ptr; 5130 else 5131 buf = NULL; 5132 ctl_done(io); 5133 if (buf) 5134 free(buf, M_CTL); 5135} 5136 5137/* 5138 * SCSI release command. 5139 */ 5140int 5141ctl_scsi_release(struct ctl_scsiio *ctsio) 5142{ 5143 int length, longid, thirdparty_id, resv_id; 5144 struct ctl_softc *ctl_softc; 5145 struct ctl_lun *lun; 5146 uint32_t residx; 5147 5148 length = 0; 5149 resv_id = 0; 5150 5151 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5152 5153 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5154 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5155 ctl_softc = control_softc; 5156 5157 switch (ctsio->cdb[0]) { 5158 case RELEASE_10: { 5159 struct scsi_release_10 *cdb; 5160 5161 cdb = (struct scsi_release_10 *)ctsio->cdb; 5162 5163 if (cdb->byte2 & SR10_LONGID) 5164 longid = 1; 5165 else 5166 thirdparty_id = cdb->thirdparty_id; 5167 5168 resv_id = cdb->resv_id; 5169 length = scsi_2btoul(cdb->length); 5170 break; 5171 } 5172 } 5173 5174 5175 /* 5176 * XXX KDM right now, we only support LUN reservation. We don't 5177 * support 3rd party reservations, or extent reservations, which 5178 * might actually need the parameter list. If we've gotten this 5179 * far, we've got a LUN reservation. Anything else got kicked out 5180 * above. So, according to SPC, ignore the length. 5181 */ 5182 length = 0; 5183 5184 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5185 && (length > 0)) { 5186 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5187 ctsio->kern_data_len = length; 5188 ctsio->kern_total_len = length; 5189 ctsio->kern_data_resid = 0; 5190 ctsio->kern_rel_offset = 0; 5191 ctsio->kern_sg_entries = 0; 5192 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5193 ctsio->be_move_done = ctl_config_move_done; 5194 ctl_datamove((union ctl_io *)ctsio); 5195 5196 return (CTL_RETVAL_COMPLETE); 5197 } 5198 5199 if (length > 0) 5200 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5201 5202 mtx_lock(&lun->lun_lock); 5203 5204 /* 5205 * According to SPC, it is not an error for an intiator to attempt 5206 * to release a reservation on a LUN that isn't reserved, or that 5207 * is reserved by another initiator. The reservation can only be 5208 * released, though, by the initiator who made it or by one of 5209 * several reset type events. 5210 */ 5211 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5212 lun->flags &= ~CTL_LUN_RESERVED; 5213 5214 mtx_unlock(&lun->lun_lock); 5215 5216 ctsio->scsi_status = SCSI_STATUS_OK; 5217 ctsio->io_hdr.status = CTL_SUCCESS; 5218 5219 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5220 free(ctsio->kern_data_ptr, M_CTL); 5221 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5222 } 5223 5224 ctl_done((union ctl_io *)ctsio); 5225 return (CTL_RETVAL_COMPLETE); 5226} 5227 5228int 5229ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5230{ 5231 int extent, thirdparty, longid; 5232 int resv_id, length; 5233 uint64_t thirdparty_id; 5234 struct ctl_softc *ctl_softc; 5235 struct ctl_lun *lun; 5236 uint32_t residx; 5237 5238 extent = 0; 5239 thirdparty = 0; 5240 longid = 0; 5241 resv_id = 0; 5242 length = 0; 5243 thirdparty_id = 0; 5244 5245 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5246 5247 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5248 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5249 ctl_softc = control_softc; 5250 5251 switch (ctsio->cdb[0]) { 5252 case RESERVE_10: { 5253 struct scsi_reserve_10 *cdb; 5254 5255 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 5256 5257 if (cdb->byte2 & SR10_LONGID) 5258 longid = 1; 5259 else 5260 thirdparty_id = cdb->thirdparty_id; 5261 5262 resv_id = cdb->resv_id; 5263 length = scsi_2btoul(cdb->length); 5264 break; 5265 } 5266 } 5267 5268 /* 5269 * XXX KDM right now, we only support LUN reservation. We don't 5270 * support 3rd party reservations, or extent reservations, which 5271 * might actually need the parameter list. If we've gotten this 5272 * far, we've got a LUN reservation. Anything else got kicked out 5273 * above. So, according to SPC, ignore the length. 5274 */ 5275 length = 0; 5276 5277 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5278 && (length > 0)) { 5279 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5280 ctsio->kern_data_len = length; 5281 ctsio->kern_total_len = length; 5282 ctsio->kern_data_resid = 0; 5283 ctsio->kern_rel_offset = 0; 5284 ctsio->kern_sg_entries = 0; 5285 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5286 ctsio->be_move_done = ctl_config_move_done; 5287 ctl_datamove((union ctl_io *)ctsio); 5288 5289 return (CTL_RETVAL_COMPLETE); 5290 } 5291 5292 if (length > 0) 5293 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5294 5295 mtx_lock(&lun->lun_lock); 5296 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5297 ctl_set_reservation_conflict(ctsio); 5298 goto bailout; 5299 } 5300 5301 lun->flags |= CTL_LUN_RESERVED; 5302 lun->res_idx = residx; 5303 5304 ctsio->scsi_status = SCSI_STATUS_OK; 5305 ctsio->io_hdr.status = CTL_SUCCESS; 5306 5307bailout: 5308 mtx_unlock(&lun->lun_lock); 5309 5310 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5311 free(ctsio->kern_data_ptr, M_CTL); 5312 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5313 } 5314 5315 ctl_done((union ctl_io *)ctsio); 5316 return (CTL_RETVAL_COMPLETE); 5317} 5318 5319int 5320ctl_start_stop(struct ctl_scsiio *ctsio) 5321{ 5322 struct scsi_start_stop_unit *cdb; 5323 struct ctl_lun *lun; 5324 struct ctl_softc *ctl_softc; 5325 int retval; 5326 5327 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5328 5329 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5330 ctl_softc = control_softc; 5331 retval = 0; 5332 5333 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5334 5335 /* 5336 * XXX KDM 5337 * We don't support the immediate bit on a stop unit. In order to 5338 * do that, we would need to code up a way to know that a stop is 5339 * pending, and hold off any new commands until it completes, one 5340 * way or another. Then we could accept or reject those commands 5341 * depending on its status. We would almost need to do the reverse 5342 * of what we do below for an immediate start -- return the copy of 5343 * the ctl_io to the FETD with status to send to the host (and to 5344 * free the copy!) and then free the original I/O once the stop 5345 * actually completes. That way, the OOA queue mechanism can work 5346 * to block commands that shouldn't proceed. Another alternative 5347 * would be to put the copy in the queue in place of the original, 5348 * and return the original back to the caller. That could be 5349 * slightly safer.. 5350 */ 5351 if ((cdb->byte2 & SSS_IMMED) 5352 && ((cdb->how & SSS_START) == 0)) { 5353 ctl_set_invalid_field(ctsio, 5354 /*sks_valid*/ 1, 5355 /*command*/ 1, 5356 /*field*/ 1, 5357 /*bit_valid*/ 1, 5358 /*bit*/ 0); 5359 ctl_done((union ctl_io *)ctsio); 5360 return (CTL_RETVAL_COMPLETE); 5361 } 5362 5363 if ((lun->flags & CTL_LUN_PR_RESERVED) 5364 && ((cdb->how & SSS_START)==0)) { 5365 uint32_t residx; 5366 5367 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5368 if (lun->pr_keys[residx] == 0 5369 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5370 5371 ctl_set_reservation_conflict(ctsio); 5372 ctl_done((union ctl_io *)ctsio); 5373 return (CTL_RETVAL_COMPLETE); 5374 } 5375 } 5376 5377 /* 5378 * If there is no backend on this device, we can't start or stop 5379 * it. In theory we shouldn't get any start/stop commands in the 5380 * first place at this level if the LUN doesn't have a backend. 5381 * That should get stopped by the command decode code. 5382 */ 5383 if (lun->backend == NULL) { 5384 ctl_set_invalid_opcode(ctsio); 5385 ctl_done((union ctl_io *)ctsio); 5386 return (CTL_RETVAL_COMPLETE); 5387 } 5388 5389 /* 5390 * XXX KDM Copan-specific offline behavior. 5391 * Figure out a reasonable way to port this? 5392 */ 5393#ifdef NEEDTOPORT 5394 mtx_lock(&lun->lun_lock); 5395 5396 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5397 && (lun->flags & CTL_LUN_OFFLINE)) { 5398 /* 5399 * If the LUN is offline, and the on/offline bit isn't set, 5400 * reject the start or stop. Otherwise, let it through. 5401 */ 5402 mtx_unlock(&lun->lun_lock); 5403 ctl_set_lun_not_ready(ctsio); 5404 ctl_done((union ctl_io *)ctsio); 5405 } else { 5406 mtx_unlock(&lun->lun_lock); 5407#endif /* NEEDTOPORT */ 5408 /* 5409 * This could be a start or a stop when we're online, 5410 * or a stop/offline or start/online. A start or stop when 5411 * we're offline is covered in the case above. 5412 */ 5413 /* 5414 * In the non-immediate case, we send the request to 5415 * the backend and return status to the user when 5416 * it is done. 5417 * 5418 * In the immediate case, we allocate a new ctl_io 5419 * to hold a copy of the request, and send that to 5420 * the backend. We then set good status on the 5421 * user's request and return it immediately. 5422 */ 5423 if (cdb->byte2 & SSS_IMMED) { 5424 union ctl_io *new_io; 5425 5426 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5427 ctl_copy_io((union ctl_io *)ctsio, new_io); 5428 retval = lun->backend->config_write(new_io); 5429 ctl_set_success(ctsio); 5430 ctl_done((union ctl_io *)ctsio); 5431 } else { 5432 retval = lun->backend->config_write( 5433 (union ctl_io *)ctsio); 5434 } 5435#ifdef NEEDTOPORT 5436 } 5437#endif 5438 return (retval); 5439} 5440 5441/* 5442 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5443 * we don't really do anything with the LBA and length fields if the user 5444 * passes them in. Instead we'll just flush out the cache for the entire 5445 * LUN. 5446 */ 5447int 5448ctl_sync_cache(struct ctl_scsiio *ctsio) 5449{ 5450 struct ctl_lun *lun; 5451 struct ctl_softc *ctl_softc; 5452 uint64_t starting_lba; 5453 uint32_t block_count; 5454 int retval; 5455 5456 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5457 5458 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5459 ctl_softc = control_softc; 5460 retval = 0; 5461 5462 switch (ctsio->cdb[0]) { 5463 case SYNCHRONIZE_CACHE: { 5464 struct scsi_sync_cache *cdb; 5465 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5466 5467 starting_lba = scsi_4btoul(cdb->begin_lba); 5468 block_count = scsi_2btoul(cdb->lb_count); 5469 break; 5470 } 5471 case SYNCHRONIZE_CACHE_16: { 5472 struct scsi_sync_cache_16 *cdb; 5473 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5474 5475 starting_lba = scsi_8btou64(cdb->begin_lba); 5476 block_count = scsi_4btoul(cdb->lb_count); 5477 break; 5478 } 5479 default: 5480 ctl_set_invalid_opcode(ctsio); 5481 ctl_done((union ctl_io *)ctsio); 5482 goto bailout; 5483 break; /* NOTREACHED */ 5484 } 5485 5486 /* 5487 * We check the LBA and length, but don't do anything with them. 5488 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5489 * get flushed. This check will just help satisfy anyone who wants 5490 * to see an error for an out of range LBA. 5491 */ 5492 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5493 ctl_set_lba_out_of_range(ctsio); 5494 ctl_done((union ctl_io *)ctsio); 5495 goto bailout; 5496 } 5497 5498 /* 5499 * If this LUN has no backend, we can't flush the cache anyway. 5500 */ 5501 if (lun->backend == NULL) { 5502 ctl_set_invalid_opcode(ctsio); 5503 ctl_done((union ctl_io *)ctsio); 5504 goto bailout; 5505 } 5506 5507 /* 5508 * Check to see whether we're configured to send the SYNCHRONIZE 5509 * CACHE command directly to the back end. 5510 */ 5511 mtx_lock(&lun->lun_lock); 5512 if ((ctl_softc->flags & CTL_FLAG_REAL_SYNC) 5513 && (++(lun->sync_count) >= lun->sync_interval)) { 5514 lun->sync_count = 0; 5515 mtx_unlock(&lun->lun_lock); 5516 retval = lun->backend->config_write((union ctl_io *)ctsio); 5517 } else { 5518 mtx_unlock(&lun->lun_lock); 5519 ctl_set_success(ctsio); 5520 ctl_done((union ctl_io *)ctsio); 5521 } 5522 5523bailout: 5524 5525 return (retval); 5526} 5527 5528int 5529ctl_format(struct ctl_scsiio *ctsio) 5530{ 5531 struct scsi_format *cdb; 5532 struct ctl_lun *lun; 5533 struct ctl_softc *ctl_softc; 5534 int length, defect_list_len; 5535 5536 CTL_DEBUG_PRINT(("ctl_format\n")); 5537 5538 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5539 ctl_softc = control_softc; 5540 5541 cdb = (struct scsi_format *)ctsio->cdb; 5542 5543 length = 0; 5544 if (cdb->byte2 & SF_FMTDATA) { 5545 if (cdb->byte2 & SF_LONGLIST) 5546 length = sizeof(struct scsi_format_header_long); 5547 else 5548 length = sizeof(struct scsi_format_header_short); 5549 } 5550 5551 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5552 && (length > 0)) { 5553 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5554 ctsio->kern_data_len = length; 5555 ctsio->kern_total_len = length; 5556 ctsio->kern_data_resid = 0; 5557 ctsio->kern_rel_offset = 0; 5558 ctsio->kern_sg_entries = 0; 5559 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5560 ctsio->be_move_done = ctl_config_move_done; 5561 ctl_datamove((union ctl_io *)ctsio); 5562 5563 return (CTL_RETVAL_COMPLETE); 5564 } 5565 5566 defect_list_len = 0; 5567 5568 if (cdb->byte2 & SF_FMTDATA) { 5569 if (cdb->byte2 & SF_LONGLIST) { 5570 struct scsi_format_header_long *header; 5571 5572 header = (struct scsi_format_header_long *) 5573 ctsio->kern_data_ptr; 5574 5575 defect_list_len = scsi_4btoul(header->defect_list_len); 5576 if (defect_list_len != 0) { 5577 ctl_set_invalid_field(ctsio, 5578 /*sks_valid*/ 1, 5579 /*command*/ 0, 5580 /*field*/ 2, 5581 /*bit_valid*/ 0, 5582 /*bit*/ 0); 5583 goto bailout; 5584 } 5585 } else { 5586 struct scsi_format_header_short *header; 5587 5588 header = (struct scsi_format_header_short *) 5589 ctsio->kern_data_ptr; 5590 5591 defect_list_len = scsi_2btoul(header->defect_list_len); 5592 if (defect_list_len != 0) { 5593 ctl_set_invalid_field(ctsio, 5594 /*sks_valid*/ 1, 5595 /*command*/ 0, 5596 /*field*/ 2, 5597 /*bit_valid*/ 0, 5598 /*bit*/ 0); 5599 goto bailout; 5600 } 5601 } 5602 } 5603 5604 /* 5605 * The format command will clear out the "Medium format corrupted" 5606 * status if set by the configuration code. That status is really 5607 * just a way to notify the host that we have lost the media, and 5608 * get them to issue a command that will basically make them think 5609 * they're blowing away the media. 5610 */ 5611 mtx_lock(&lun->lun_lock); 5612 lun->flags &= ~CTL_LUN_INOPERABLE; 5613 mtx_unlock(&lun->lun_lock); 5614 5615 ctsio->scsi_status = SCSI_STATUS_OK; 5616 ctsio->io_hdr.status = CTL_SUCCESS; 5617bailout: 5618 5619 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5620 free(ctsio->kern_data_ptr, M_CTL); 5621 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5622 } 5623 5624 ctl_done((union ctl_io *)ctsio); 5625 return (CTL_RETVAL_COMPLETE); 5626} 5627 5628int 5629ctl_read_buffer(struct ctl_scsiio *ctsio) 5630{ 5631 struct scsi_read_buffer *cdb; 5632 struct ctl_lun *lun; 5633 int buffer_offset, len; 5634 static uint8_t descr[4]; 5635 static uint8_t echo_descr[4] = { 0 }; 5636 5637 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5638 5639 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5640 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5641 5642 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA && 5643 (cdb->byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5644 (cdb->byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5645 ctl_set_invalid_field(ctsio, 5646 /*sks_valid*/ 1, 5647 /*command*/ 1, 5648 /*field*/ 1, 5649 /*bit_valid*/ 1, 5650 /*bit*/ 4); 5651 ctl_done((union ctl_io *)ctsio); 5652 return (CTL_RETVAL_COMPLETE); 5653 } 5654 5655 len = scsi_3btoul(cdb->length); 5656 buffer_offset = scsi_3btoul(cdb->offset); 5657 5658 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5659 ctl_set_invalid_field(ctsio, 5660 /*sks_valid*/ 1, 5661 /*command*/ 1, 5662 /*field*/ 6, 5663 /*bit_valid*/ 0, 5664 /*bit*/ 0); 5665 ctl_done((union ctl_io *)ctsio); 5666 return (CTL_RETVAL_COMPLETE); 5667 } 5668 5669 if ((cdb->byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5670 descr[0] = 0; 5671 scsi_ulto3b(CTL_WRITE_BUFFER_SIZE, &descr[1]); 5672 ctsio->kern_data_ptr = descr; 5673 len = min(len, sizeof(descr)); 5674 } else if ((cdb->byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5675 ctsio->kern_data_ptr = echo_descr; 5676 len = min(len, sizeof(echo_descr)); 5677 } else { 5678 if (lun->write_buffer == NULL) { 5679 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5680 M_CTL, M_WAITOK); 5681 } 5682 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5683 } 5684 ctsio->kern_data_len = len; 5685 ctsio->kern_total_len = len; 5686 ctsio->kern_data_resid = 0; 5687 ctsio->kern_rel_offset = 0; 5688 ctsio->kern_sg_entries = 0; 5689 ctsio->be_move_done = ctl_config_move_done; 5690 ctl_datamove((union ctl_io *)ctsio); 5691 5692 return (CTL_RETVAL_COMPLETE); 5693} 5694 5695int 5696ctl_write_buffer(struct ctl_scsiio *ctsio) 5697{ 5698 struct scsi_write_buffer *cdb; 5699 struct ctl_lun *lun; 5700 int buffer_offset, len; 5701 5702 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5703 5704 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5705 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5706 5707 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5708 ctl_set_invalid_field(ctsio, 5709 /*sks_valid*/ 1, 5710 /*command*/ 1, 5711 /*field*/ 1, 5712 /*bit_valid*/ 1, 5713 /*bit*/ 4); 5714 ctl_done((union ctl_io *)ctsio); 5715 return (CTL_RETVAL_COMPLETE); 5716 } 5717 5718 len = scsi_3btoul(cdb->length); 5719 buffer_offset = scsi_3btoul(cdb->offset); 5720 5721 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5722 ctl_set_invalid_field(ctsio, 5723 /*sks_valid*/ 1, 5724 /*command*/ 1, 5725 /*field*/ 6, 5726 /*bit_valid*/ 0, 5727 /*bit*/ 0); 5728 ctl_done((union ctl_io *)ctsio); 5729 return (CTL_RETVAL_COMPLETE); 5730 } 5731 5732 /* 5733 * If we've got a kernel request that hasn't been malloced yet, 5734 * malloc it and tell the caller the data buffer is here. 5735 */ 5736 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5737 if (lun->write_buffer == NULL) { 5738 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5739 M_CTL, M_WAITOK); 5740 } 5741 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5742 ctsio->kern_data_len = len; 5743 ctsio->kern_total_len = len; 5744 ctsio->kern_data_resid = 0; 5745 ctsio->kern_rel_offset = 0; 5746 ctsio->kern_sg_entries = 0; 5747 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5748 ctsio->be_move_done = ctl_config_move_done; 5749 ctl_datamove((union ctl_io *)ctsio); 5750 5751 return (CTL_RETVAL_COMPLETE); 5752 } 5753 5754 ctl_done((union ctl_io *)ctsio); 5755 5756 return (CTL_RETVAL_COMPLETE); 5757} 5758 5759int 5760ctl_write_same(struct ctl_scsiio *ctsio) 5761{ 5762 struct ctl_lun *lun; 5763 struct ctl_lba_len_flags *lbalen; 5764 uint64_t lba; 5765 uint32_t num_blocks; 5766 int len, retval; 5767 uint8_t byte2; 5768 5769 retval = CTL_RETVAL_COMPLETE; 5770 5771 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5772 5773 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5774 5775 switch (ctsio->cdb[0]) { 5776 case WRITE_SAME_10: { 5777 struct scsi_write_same_10 *cdb; 5778 5779 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5780 5781 lba = scsi_4btoul(cdb->addr); 5782 num_blocks = scsi_2btoul(cdb->length); 5783 byte2 = cdb->byte2; 5784 break; 5785 } 5786 case WRITE_SAME_16: { 5787 struct scsi_write_same_16 *cdb; 5788 5789 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5790 5791 lba = scsi_8btou64(cdb->addr); 5792 num_blocks = scsi_4btoul(cdb->length); 5793 byte2 = cdb->byte2; 5794 break; 5795 } 5796 default: 5797 /* 5798 * We got a command we don't support. This shouldn't 5799 * happen, commands should be filtered out above us. 5800 */ 5801 ctl_set_invalid_opcode(ctsio); 5802 ctl_done((union ctl_io *)ctsio); 5803 5804 return (CTL_RETVAL_COMPLETE); 5805 break; /* NOTREACHED */ 5806 } 5807 5808 /* NDOB and ANCHOR flags can be used only together with UNMAP */ 5809 if ((byte2 & SWS_UNMAP) == 0 && 5810 (byte2 & (SWS_NDOB | SWS_ANCHOR)) != 0) { 5811 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5812 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5813 ctl_done((union ctl_io *)ctsio); 5814 return (CTL_RETVAL_COMPLETE); 5815 } 5816 5817 /* 5818 * The first check is to make sure we're in bounds, the second 5819 * check is to catch wrap-around problems. If the lba + num blocks 5820 * is less than the lba, then we've wrapped around and the block 5821 * range is invalid anyway. 5822 */ 5823 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5824 || ((lba + num_blocks) < lba)) { 5825 ctl_set_lba_out_of_range(ctsio); 5826 ctl_done((union ctl_io *)ctsio); 5827 return (CTL_RETVAL_COMPLETE); 5828 } 5829 5830 /* Zero number of blocks means "to the last logical block" */ 5831 if (num_blocks == 0) { 5832 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5833 ctl_set_invalid_field(ctsio, 5834 /*sks_valid*/ 0, 5835 /*command*/ 1, 5836 /*field*/ 0, 5837 /*bit_valid*/ 0, 5838 /*bit*/ 0); 5839 ctl_done((union ctl_io *)ctsio); 5840 return (CTL_RETVAL_COMPLETE); 5841 } 5842 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5843 } 5844 5845 len = lun->be_lun->blocksize; 5846 5847 /* 5848 * If we've got a kernel request that hasn't been malloced yet, 5849 * malloc it and tell the caller the data buffer is here. 5850 */ 5851 if ((byte2 & SWS_NDOB) == 0 && 5852 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5853 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5854 ctsio->kern_data_len = len; 5855 ctsio->kern_total_len = len; 5856 ctsio->kern_data_resid = 0; 5857 ctsio->kern_rel_offset = 0; 5858 ctsio->kern_sg_entries = 0; 5859 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5860 ctsio->be_move_done = ctl_config_move_done; 5861 ctl_datamove((union ctl_io *)ctsio); 5862 5863 return (CTL_RETVAL_COMPLETE); 5864 } 5865 5866 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5867 lbalen->lba = lba; 5868 lbalen->len = num_blocks; 5869 lbalen->flags = byte2; 5870 retval = lun->backend->config_write((union ctl_io *)ctsio); 5871 5872 return (retval); 5873} 5874 5875int 5876ctl_unmap(struct ctl_scsiio *ctsio) 5877{ 5878 struct ctl_lun *lun; 5879 struct scsi_unmap *cdb; 5880 struct ctl_ptr_len_flags *ptrlen; 5881 struct scsi_unmap_header *hdr; 5882 struct scsi_unmap_desc *buf, *end, *endnz, *range; 5883 uint64_t lba; 5884 uint32_t num_blocks; 5885 int len, retval; 5886 uint8_t byte2; 5887 5888 retval = CTL_RETVAL_COMPLETE; 5889 5890 CTL_DEBUG_PRINT(("ctl_unmap\n")); 5891 5892 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5893 cdb = (struct scsi_unmap *)ctsio->cdb; 5894 5895 len = scsi_2btoul(cdb->length); 5896 byte2 = cdb->byte2; 5897 5898 /* 5899 * If we've got a kernel request that hasn't been malloced yet, 5900 * malloc it and tell the caller the data buffer is here. 5901 */ 5902 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5903 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5904 ctsio->kern_data_len = len; 5905 ctsio->kern_total_len = len; 5906 ctsio->kern_data_resid = 0; 5907 ctsio->kern_rel_offset = 0; 5908 ctsio->kern_sg_entries = 0; 5909 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5910 ctsio->be_move_done = ctl_config_move_done; 5911 ctl_datamove((union ctl_io *)ctsio); 5912 5913 return (CTL_RETVAL_COMPLETE); 5914 } 5915 5916 len = ctsio->kern_total_len - ctsio->kern_data_resid; 5917 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 5918 if (len < sizeof (*hdr) || 5919 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 5920 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 5921 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 5922 ctl_set_invalid_field(ctsio, 5923 /*sks_valid*/ 0, 5924 /*command*/ 0, 5925 /*field*/ 0, 5926 /*bit_valid*/ 0, 5927 /*bit*/ 0); 5928 goto done; 5929 } 5930 len = scsi_2btoul(hdr->desc_length); 5931 buf = (struct scsi_unmap_desc *)(hdr + 1); 5932 end = buf + len / sizeof(*buf); 5933 5934 endnz = buf; 5935 for (range = buf; range < end; range++) { 5936 lba = scsi_8btou64(range->lba); 5937 num_blocks = scsi_4btoul(range->length); 5938 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5939 || ((lba + num_blocks) < lba)) { 5940 ctl_set_lba_out_of_range(ctsio); 5941 ctl_done((union ctl_io *)ctsio); 5942 return (CTL_RETVAL_COMPLETE); 5943 } 5944 if (num_blocks != 0) 5945 endnz = range + 1; 5946 } 5947 5948 /* 5949 * Block backend can not handle zero last range. 5950 * Filter it out and return if there is nothing left. 5951 */ 5952 len = (uint8_t *)endnz - (uint8_t *)buf; 5953 if (len == 0) { 5954 ctl_set_success(ctsio); 5955 goto done; 5956 } 5957 5958 mtx_lock(&lun->lun_lock); 5959 ptrlen = (struct ctl_ptr_len_flags *) 5960 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5961 ptrlen->ptr = (void *)buf; 5962 ptrlen->len = len; 5963 ptrlen->flags = byte2; 5964 ctl_check_blocked(lun); 5965 mtx_unlock(&lun->lun_lock); 5966 5967 retval = lun->backend->config_write((union ctl_io *)ctsio); 5968 return (retval); 5969 5970done: 5971 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5972 free(ctsio->kern_data_ptr, M_CTL); 5973 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5974 } 5975 ctl_done((union ctl_io *)ctsio); 5976 return (CTL_RETVAL_COMPLETE); 5977} 5978 5979/* 5980 * Note that this function currently doesn't actually do anything inside 5981 * CTL to enforce things if the DQue bit is turned on. 5982 * 5983 * Also note that this function can't be used in the default case, because 5984 * the DQue bit isn't set in the changeable mask for the control mode page 5985 * anyway. This is just here as an example for how to implement a page 5986 * handler, and a placeholder in case we want to allow the user to turn 5987 * tagged queueing on and off. 5988 * 5989 * The D_SENSE bit handling is functional, however, and will turn 5990 * descriptor sense on and off for a given LUN. 5991 */ 5992int 5993ctl_control_page_handler(struct ctl_scsiio *ctsio, 5994 struct ctl_page_index *page_index, uint8_t *page_ptr) 5995{ 5996 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 5997 struct ctl_lun *lun; 5998 struct ctl_softc *softc; 5999 int set_ua; 6000 uint32_t initidx; 6001 6002 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6003 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6004 set_ua = 0; 6005 6006 user_cp = (struct scsi_control_page *)page_ptr; 6007 current_cp = (struct scsi_control_page *) 6008 (page_index->page_data + (page_index->page_len * 6009 CTL_PAGE_CURRENT)); 6010 saved_cp = (struct scsi_control_page *) 6011 (page_index->page_data + (page_index->page_len * 6012 CTL_PAGE_SAVED)); 6013 6014 softc = control_softc; 6015 6016 mtx_lock(&lun->lun_lock); 6017 if (((current_cp->rlec & SCP_DSENSE) == 0) 6018 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 6019 /* 6020 * Descriptor sense is currently turned off and the user 6021 * wants to turn it on. 6022 */ 6023 current_cp->rlec |= SCP_DSENSE; 6024 saved_cp->rlec |= SCP_DSENSE; 6025 lun->flags |= CTL_LUN_SENSE_DESC; 6026 set_ua = 1; 6027 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 6028 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 6029 /* 6030 * Descriptor sense is currently turned on, and the user 6031 * wants to turn it off. 6032 */ 6033 current_cp->rlec &= ~SCP_DSENSE; 6034 saved_cp->rlec &= ~SCP_DSENSE; 6035 lun->flags &= ~CTL_LUN_SENSE_DESC; 6036 set_ua = 1; 6037 } 6038 if ((current_cp->queue_flags & SCP_QUEUE_ALG_MASK) != 6039 (user_cp->queue_flags & SCP_QUEUE_ALG_MASK)) { 6040 current_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6041 current_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6042 saved_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6043 saved_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6044 set_ua = 1; 6045 } 6046 if ((current_cp->eca_and_aen & SCP_SWP) != 6047 (user_cp->eca_and_aen & SCP_SWP)) { 6048 current_cp->eca_and_aen &= ~SCP_SWP; 6049 current_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6050 saved_cp->eca_and_aen &= ~SCP_SWP; 6051 saved_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6052 set_ua = 1; 6053 } 6054 if (set_ua != 0) { 6055 int i; 6056 /* 6057 * Let other initiators know that the mode 6058 * parameters for this LUN have changed. 6059 */ 6060 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6061 if (i == initidx) 6062 continue; 6063 6064 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6065 } 6066 } 6067 mtx_unlock(&lun->lun_lock); 6068 6069 return (0); 6070} 6071 6072int 6073ctl_caching_sp_handler(struct ctl_scsiio *ctsio, 6074 struct ctl_page_index *page_index, uint8_t *page_ptr) 6075{ 6076 struct scsi_caching_page *current_cp, *saved_cp, *user_cp; 6077 struct ctl_lun *lun; 6078 int set_ua; 6079 uint32_t initidx; 6080 6081 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6082 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6083 set_ua = 0; 6084 6085 user_cp = (struct scsi_caching_page *)page_ptr; 6086 current_cp = (struct scsi_caching_page *) 6087 (page_index->page_data + (page_index->page_len * 6088 CTL_PAGE_CURRENT)); 6089 saved_cp = (struct scsi_caching_page *) 6090 (page_index->page_data + (page_index->page_len * 6091 CTL_PAGE_SAVED)); 6092 6093 mtx_lock(&lun->lun_lock); 6094 if ((current_cp->flags1 & (SCP_WCE | SCP_RCD)) != 6095 (user_cp->flags1 & (SCP_WCE | SCP_RCD))) { 6096 current_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6097 current_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6098 saved_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6099 saved_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6100 set_ua = 1; 6101 } 6102 if (set_ua != 0) { 6103 int i; 6104 /* 6105 * Let other initiators know that the mode 6106 * parameters for this LUN have changed. 6107 */ 6108 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6109 if (i == initidx) 6110 continue; 6111 6112 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6113 } 6114 } 6115 mtx_unlock(&lun->lun_lock); 6116 6117 return (0); 6118} 6119 6120int 6121ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 6122 struct ctl_page_index *page_index, 6123 uint8_t *page_ptr) 6124{ 6125 uint8_t *c; 6126 int i; 6127 6128 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 6129 ctl_time_io_secs = 6130 (c[0] << 8) | 6131 (c[1] << 0) | 6132 0; 6133 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 6134 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 6135 printf("page data:"); 6136 for (i=0; i<8; i++) 6137 printf(" %.2x",page_ptr[i]); 6138 printf("\n"); 6139 return (0); 6140} 6141 6142int 6143ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 6144 struct ctl_page_index *page_index, 6145 int pc) 6146{ 6147 struct copan_debugconf_subpage *page; 6148 6149 page = (struct copan_debugconf_subpage *)page_index->page_data + 6150 (page_index->page_len * pc); 6151 6152 switch (pc) { 6153 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6154 case SMS_PAGE_CTRL_DEFAULT >> 6: 6155 case SMS_PAGE_CTRL_SAVED >> 6: 6156 /* 6157 * We don't update the changable or default bits for this page. 6158 */ 6159 break; 6160 case SMS_PAGE_CTRL_CURRENT >> 6: 6161 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 6162 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 6163 break; 6164 default: 6165#ifdef NEEDTOPORT 6166 EPRINT(0, "Invalid PC %d!!", pc); 6167#endif /* NEEDTOPORT */ 6168 break; 6169 } 6170 return (0); 6171} 6172 6173 6174static int 6175ctl_do_mode_select(union ctl_io *io) 6176{ 6177 struct scsi_mode_page_header *page_header; 6178 struct ctl_page_index *page_index; 6179 struct ctl_scsiio *ctsio; 6180 int control_dev, page_len; 6181 int page_len_offset, page_len_size; 6182 union ctl_modepage_info *modepage_info; 6183 struct ctl_lun *lun; 6184 int *len_left, *len_used; 6185 int retval, i; 6186 6187 ctsio = &io->scsiio; 6188 page_index = NULL; 6189 page_len = 0; 6190 retval = CTL_RETVAL_COMPLETE; 6191 6192 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6193 6194 if (lun->be_lun->lun_type != T_DIRECT) 6195 control_dev = 1; 6196 else 6197 control_dev = 0; 6198 6199 modepage_info = (union ctl_modepage_info *) 6200 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6201 len_left = &modepage_info->header.len_left; 6202 len_used = &modepage_info->header.len_used; 6203 6204do_next_page: 6205 6206 page_header = (struct scsi_mode_page_header *) 6207 (ctsio->kern_data_ptr + *len_used); 6208 6209 if (*len_left == 0) { 6210 free(ctsio->kern_data_ptr, M_CTL); 6211 ctl_set_success(ctsio); 6212 ctl_done((union ctl_io *)ctsio); 6213 return (CTL_RETVAL_COMPLETE); 6214 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6215 6216 free(ctsio->kern_data_ptr, M_CTL); 6217 ctl_set_param_len_error(ctsio); 6218 ctl_done((union ctl_io *)ctsio); 6219 return (CTL_RETVAL_COMPLETE); 6220 6221 } else if ((page_header->page_code & SMPH_SPF) 6222 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6223 6224 free(ctsio->kern_data_ptr, M_CTL); 6225 ctl_set_param_len_error(ctsio); 6226 ctl_done((union ctl_io *)ctsio); 6227 return (CTL_RETVAL_COMPLETE); 6228 } 6229 6230 6231 /* 6232 * XXX KDM should we do something with the block descriptor? 6233 */ 6234 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6235 6236 if ((control_dev != 0) 6237 && (lun->mode_pages.index[i].page_flags & 6238 CTL_PAGE_FLAG_DISK_ONLY)) 6239 continue; 6240 6241 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 6242 (page_header->page_code & SMPH_PC_MASK)) 6243 continue; 6244 6245 /* 6246 * If neither page has a subpage code, then we've got a 6247 * match. 6248 */ 6249 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 6250 && ((page_header->page_code & SMPH_SPF) == 0)) { 6251 page_index = &lun->mode_pages.index[i]; 6252 page_len = page_header->page_length; 6253 break; 6254 } 6255 6256 /* 6257 * If both pages have subpages, then the subpage numbers 6258 * have to match. 6259 */ 6260 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 6261 && (page_header->page_code & SMPH_SPF)) { 6262 struct scsi_mode_page_header_sp *sph; 6263 6264 sph = (struct scsi_mode_page_header_sp *)page_header; 6265 6266 if (lun->mode_pages.index[i].subpage == 6267 sph->subpage) { 6268 page_index = &lun->mode_pages.index[i]; 6269 page_len = scsi_2btoul(sph->page_length); 6270 break; 6271 } 6272 } 6273 } 6274 6275 /* 6276 * If we couldn't find the page, or if we don't have a mode select 6277 * handler for it, send back an error to the user. 6278 */ 6279 if ((page_index == NULL) 6280 || (page_index->select_handler == NULL)) { 6281 ctl_set_invalid_field(ctsio, 6282 /*sks_valid*/ 1, 6283 /*command*/ 0, 6284 /*field*/ *len_used, 6285 /*bit_valid*/ 0, 6286 /*bit*/ 0); 6287 free(ctsio->kern_data_ptr, M_CTL); 6288 ctl_done((union ctl_io *)ctsio); 6289 return (CTL_RETVAL_COMPLETE); 6290 } 6291 6292 if (page_index->page_code & SMPH_SPF) { 6293 page_len_offset = 2; 6294 page_len_size = 2; 6295 } else { 6296 page_len_size = 1; 6297 page_len_offset = 1; 6298 } 6299 6300 /* 6301 * If the length the initiator gives us isn't the one we specify in 6302 * the mode page header, or if they didn't specify enough data in 6303 * the CDB to avoid truncating this page, kick out the request. 6304 */ 6305 if ((page_len != (page_index->page_len - page_len_offset - 6306 page_len_size)) 6307 || (*len_left < page_index->page_len)) { 6308 6309 6310 ctl_set_invalid_field(ctsio, 6311 /*sks_valid*/ 1, 6312 /*command*/ 0, 6313 /*field*/ *len_used + page_len_offset, 6314 /*bit_valid*/ 0, 6315 /*bit*/ 0); 6316 free(ctsio->kern_data_ptr, M_CTL); 6317 ctl_done((union ctl_io *)ctsio); 6318 return (CTL_RETVAL_COMPLETE); 6319 } 6320 6321 /* 6322 * Run through the mode page, checking to make sure that the bits 6323 * the user changed are actually legal for him to change. 6324 */ 6325 for (i = 0; i < page_index->page_len; i++) { 6326 uint8_t *user_byte, *change_mask, *current_byte; 6327 int bad_bit; 6328 int j; 6329 6330 user_byte = (uint8_t *)page_header + i; 6331 change_mask = page_index->page_data + 6332 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6333 current_byte = page_index->page_data + 6334 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6335 6336 /* 6337 * Check to see whether the user set any bits in this byte 6338 * that he is not allowed to set. 6339 */ 6340 if ((*user_byte & ~(*change_mask)) == 6341 (*current_byte & ~(*change_mask))) 6342 continue; 6343 6344 /* 6345 * Go through bit by bit to determine which one is illegal. 6346 */ 6347 bad_bit = 0; 6348 for (j = 7; j >= 0; j--) { 6349 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6350 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6351 bad_bit = i; 6352 break; 6353 } 6354 } 6355 ctl_set_invalid_field(ctsio, 6356 /*sks_valid*/ 1, 6357 /*command*/ 0, 6358 /*field*/ *len_used + i, 6359 /*bit_valid*/ 1, 6360 /*bit*/ bad_bit); 6361 free(ctsio->kern_data_ptr, M_CTL); 6362 ctl_done((union ctl_io *)ctsio); 6363 return (CTL_RETVAL_COMPLETE); 6364 } 6365 6366 /* 6367 * Decrement these before we call the page handler, since we may 6368 * end up getting called back one way or another before the handler 6369 * returns to this context. 6370 */ 6371 *len_left -= page_index->page_len; 6372 *len_used += page_index->page_len; 6373 6374 retval = page_index->select_handler(ctsio, page_index, 6375 (uint8_t *)page_header); 6376 6377 /* 6378 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6379 * wait until this queued command completes to finish processing 6380 * the mode page. If it returns anything other than 6381 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6382 * already set the sense information, freed the data pointer, and 6383 * completed the io for us. 6384 */ 6385 if (retval != CTL_RETVAL_COMPLETE) 6386 goto bailout_no_done; 6387 6388 /* 6389 * If the initiator sent us more than one page, parse the next one. 6390 */ 6391 if (*len_left > 0) 6392 goto do_next_page; 6393 6394 ctl_set_success(ctsio); 6395 free(ctsio->kern_data_ptr, M_CTL); 6396 ctl_done((union ctl_io *)ctsio); 6397 6398bailout_no_done: 6399 6400 return (CTL_RETVAL_COMPLETE); 6401 6402} 6403 6404int 6405ctl_mode_select(struct ctl_scsiio *ctsio) 6406{ 6407 int param_len, pf, sp; 6408 int header_size, bd_len; 6409 int len_left, len_used; 6410 struct ctl_page_index *page_index; 6411 struct ctl_lun *lun; 6412 int control_dev, page_len; 6413 union ctl_modepage_info *modepage_info; 6414 int retval; 6415 6416 pf = 0; 6417 sp = 0; 6418 page_len = 0; 6419 len_used = 0; 6420 len_left = 0; 6421 retval = 0; 6422 bd_len = 0; 6423 page_index = NULL; 6424 6425 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6426 6427 if (lun->be_lun->lun_type != T_DIRECT) 6428 control_dev = 1; 6429 else 6430 control_dev = 0; 6431 6432 switch (ctsio->cdb[0]) { 6433 case MODE_SELECT_6: { 6434 struct scsi_mode_select_6 *cdb; 6435 6436 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6437 6438 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6439 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6440 6441 param_len = cdb->length; 6442 header_size = sizeof(struct scsi_mode_header_6); 6443 break; 6444 } 6445 case MODE_SELECT_10: { 6446 struct scsi_mode_select_10 *cdb; 6447 6448 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6449 6450 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6451 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6452 6453 param_len = scsi_2btoul(cdb->length); 6454 header_size = sizeof(struct scsi_mode_header_10); 6455 break; 6456 } 6457 default: 6458 ctl_set_invalid_opcode(ctsio); 6459 ctl_done((union ctl_io *)ctsio); 6460 return (CTL_RETVAL_COMPLETE); 6461 break; /* NOTREACHED */ 6462 } 6463 6464 /* 6465 * From SPC-3: 6466 * "A parameter list length of zero indicates that the Data-Out Buffer 6467 * shall be empty. This condition shall not be considered as an error." 6468 */ 6469 if (param_len == 0) { 6470 ctl_set_success(ctsio); 6471 ctl_done((union ctl_io *)ctsio); 6472 return (CTL_RETVAL_COMPLETE); 6473 } 6474 6475 /* 6476 * Since we'll hit this the first time through, prior to 6477 * allocation, we don't need to free a data buffer here. 6478 */ 6479 if (param_len < header_size) { 6480 ctl_set_param_len_error(ctsio); 6481 ctl_done((union ctl_io *)ctsio); 6482 return (CTL_RETVAL_COMPLETE); 6483 } 6484 6485 /* 6486 * Allocate the data buffer and grab the user's data. In theory, 6487 * we shouldn't have to sanity check the parameter list length here 6488 * because the maximum size is 64K. We should be able to malloc 6489 * that much without too many problems. 6490 */ 6491 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6492 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6493 ctsio->kern_data_len = param_len; 6494 ctsio->kern_total_len = param_len; 6495 ctsio->kern_data_resid = 0; 6496 ctsio->kern_rel_offset = 0; 6497 ctsio->kern_sg_entries = 0; 6498 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6499 ctsio->be_move_done = ctl_config_move_done; 6500 ctl_datamove((union ctl_io *)ctsio); 6501 6502 return (CTL_RETVAL_COMPLETE); 6503 } 6504 6505 switch (ctsio->cdb[0]) { 6506 case MODE_SELECT_6: { 6507 struct scsi_mode_header_6 *mh6; 6508 6509 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6510 bd_len = mh6->blk_desc_len; 6511 break; 6512 } 6513 case MODE_SELECT_10: { 6514 struct scsi_mode_header_10 *mh10; 6515 6516 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6517 bd_len = scsi_2btoul(mh10->blk_desc_len); 6518 break; 6519 } 6520 default: 6521 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6522 break; 6523 } 6524 6525 if (param_len < (header_size + bd_len)) { 6526 free(ctsio->kern_data_ptr, M_CTL); 6527 ctl_set_param_len_error(ctsio); 6528 ctl_done((union ctl_io *)ctsio); 6529 return (CTL_RETVAL_COMPLETE); 6530 } 6531 6532 /* 6533 * Set the IO_CONT flag, so that if this I/O gets passed to 6534 * ctl_config_write_done(), it'll get passed back to 6535 * ctl_do_mode_select() for further processing, or completion if 6536 * we're all done. 6537 */ 6538 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6539 ctsio->io_cont = ctl_do_mode_select; 6540 6541 modepage_info = (union ctl_modepage_info *) 6542 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6543 6544 memset(modepage_info, 0, sizeof(*modepage_info)); 6545 6546 len_left = param_len - header_size - bd_len; 6547 len_used = header_size + bd_len; 6548 6549 modepage_info->header.len_left = len_left; 6550 modepage_info->header.len_used = len_used; 6551 6552 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6553} 6554 6555int 6556ctl_mode_sense(struct ctl_scsiio *ctsio) 6557{ 6558 struct ctl_lun *lun; 6559 int pc, page_code, dbd, llba, subpage; 6560 int alloc_len, page_len, header_len, total_len; 6561 struct scsi_mode_block_descr *block_desc; 6562 struct ctl_page_index *page_index; 6563 int control_dev; 6564 6565 dbd = 0; 6566 llba = 0; 6567 block_desc = NULL; 6568 page_index = NULL; 6569 6570 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6571 6572 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6573 6574 if (lun->be_lun->lun_type != T_DIRECT) 6575 control_dev = 1; 6576 else 6577 control_dev = 0; 6578 6579 switch (ctsio->cdb[0]) { 6580 case MODE_SENSE_6: { 6581 struct scsi_mode_sense_6 *cdb; 6582 6583 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6584 6585 header_len = sizeof(struct scsi_mode_hdr_6); 6586 if (cdb->byte2 & SMS_DBD) 6587 dbd = 1; 6588 else 6589 header_len += sizeof(struct scsi_mode_block_descr); 6590 6591 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6592 page_code = cdb->page & SMS_PAGE_CODE; 6593 subpage = cdb->subpage; 6594 alloc_len = cdb->length; 6595 break; 6596 } 6597 case MODE_SENSE_10: { 6598 struct scsi_mode_sense_10 *cdb; 6599 6600 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6601 6602 header_len = sizeof(struct scsi_mode_hdr_10); 6603 6604 if (cdb->byte2 & SMS_DBD) 6605 dbd = 1; 6606 else 6607 header_len += sizeof(struct scsi_mode_block_descr); 6608 if (cdb->byte2 & SMS10_LLBAA) 6609 llba = 1; 6610 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6611 page_code = cdb->page & SMS_PAGE_CODE; 6612 subpage = cdb->subpage; 6613 alloc_len = scsi_2btoul(cdb->length); 6614 break; 6615 } 6616 default: 6617 ctl_set_invalid_opcode(ctsio); 6618 ctl_done((union ctl_io *)ctsio); 6619 return (CTL_RETVAL_COMPLETE); 6620 break; /* NOTREACHED */ 6621 } 6622 6623 /* 6624 * We have to make a first pass through to calculate the size of 6625 * the pages that match the user's query. Then we allocate enough 6626 * memory to hold it, and actually copy the data into the buffer. 6627 */ 6628 switch (page_code) { 6629 case SMS_ALL_PAGES_PAGE: { 6630 int i; 6631 6632 page_len = 0; 6633 6634 /* 6635 * At the moment, values other than 0 and 0xff here are 6636 * reserved according to SPC-3. 6637 */ 6638 if ((subpage != SMS_SUBPAGE_PAGE_0) 6639 && (subpage != SMS_SUBPAGE_ALL)) { 6640 ctl_set_invalid_field(ctsio, 6641 /*sks_valid*/ 1, 6642 /*command*/ 1, 6643 /*field*/ 3, 6644 /*bit_valid*/ 0, 6645 /*bit*/ 0); 6646 ctl_done((union ctl_io *)ctsio); 6647 return (CTL_RETVAL_COMPLETE); 6648 } 6649 6650 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6651 if ((control_dev != 0) 6652 && (lun->mode_pages.index[i].page_flags & 6653 CTL_PAGE_FLAG_DISK_ONLY)) 6654 continue; 6655 6656 /* 6657 * We don't use this subpage if the user didn't 6658 * request all subpages. 6659 */ 6660 if ((lun->mode_pages.index[i].subpage != 0) 6661 && (subpage == SMS_SUBPAGE_PAGE_0)) 6662 continue; 6663 6664#if 0 6665 printf("found page %#x len %d\n", 6666 lun->mode_pages.index[i].page_code & 6667 SMPH_PC_MASK, 6668 lun->mode_pages.index[i].page_len); 6669#endif 6670 page_len += lun->mode_pages.index[i].page_len; 6671 } 6672 break; 6673 } 6674 default: { 6675 int i; 6676 6677 page_len = 0; 6678 6679 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6680 /* Look for the right page code */ 6681 if ((lun->mode_pages.index[i].page_code & 6682 SMPH_PC_MASK) != page_code) 6683 continue; 6684 6685 /* Look for the right subpage or the subpage wildcard*/ 6686 if ((lun->mode_pages.index[i].subpage != subpage) 6687 && (subpage != SMS_SUBPAGE_ALL)) 6688 continue; 6689 6690 /* Make sure the page is supported for this dev type */ 6691 if ((control_dev != 0) 6692 && (lun->mode_pages.index[i].page_flags & 6693 CTL_PAGE_FLAG_DISK_ONLY)) 6694 continue; 6695 6696#if 0 6697 printf("found page %#x len %d\n", 6698 lun->mode_pages.index[i].page_code & 6699 SMPH_PC_MASK, 6700 lun->mode_pages.index[i].page_len); 6701#endif 6702 6703 page_len += lun->mode_pages.index[i].page_len; 6704 } 6705 6706 if (page_len == 0) { 6707 ctl_set_invalid_field(ctsio, 6708 /*sks_valid*/ 1, 6709 /*command*/ 1, 6710 /*field*/ 2, 6711 /*bit_valid*/ 1, 6712 /*bit*/ 5); 6713 ctl_done((union ctl_io *)ctsio); 6714 return (CTL_RETVAL_COMPLETE); 6715 } 6716 break; 6717 } 6718 } 6719 6720 total_len = header_len + page_len; 6721#if 0 6722 printf("header_len = %d, page_len = %d, total_len = %d\n", 6723 header_len, page_len, total_len); 6724#endif 6725 6726 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6727 ctsio->kern_sg_entries = 0; 6728 ctsio->kern_data_resid = 0; 6729 ctsio->kern_rel_offset = 0; 6730 if (total_len < alloc_len) { 6731 ctsio->residual = alloc_len - total_len; 6732 ctsio->kern_data_len = total_len; 6733 ctsio->kern_total_len = total_len; 6734 } else { 6735 ctsio->residual = 0; 6736 ctsio->kern_data_len = alloc_len; 6737 ctsio->kern_total_len = alloc_len; 6738 } 6739 6740 switch (ctsio->cdb[0]) { 6741 case MODE_SENSE_6: { 6742 struct scsi_mode_hdr_6 *header; 6743 6744 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6745 6746 header->datalen = ctl_min(total_len - 1, 254); 6747 if (control_dev == 0) { 6748 header->dev_specific = 0x10; /* DPOFUA */ 6749 if ((lun->flags & CTL_LUN_READONLY) || 6750 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6751 .eca_and_aen & SCP_SWP) != 0) 6752 header->dev_specific |= 0x80; /* WP */ 6753 } 6754 if (dbd) 6755 header->block_descr_len = 0; 6756 else 6757 header->block_descr_len = 6758 sizeof(struct scsi_mode_block_descr); 6759 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6760 break; 6761 } 6762 case MODE_SENSE_10: { 6763 struct scsi_mode_hdr_10 *header; 6764 int datalen; 6765 6766 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6767 6768 datalen = ctl_min(total_len - 2, 65533); 6769 scsi_ulto2b(datalen, header->datalen); 6770 if (control_dev == 0) { 6771 header->dev_specific = 0x10; /* DPOFUA */ 6772 if ((lun->flags & CTL_LUN_READONLY) || 6773 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6774 .eca_and_aen & SCP_SWP) != 0) 6775 header->dev_specific |= 0x80; /* WP */ 6776 } 6777 if (dbd) 6778 scsi_ulto2b(0, header->block_descr_len); 6779 else 6780 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 6781 header->block_descr_len); 6782 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6783 break; 6784 } 6785 default: 6786 panic("invalid CDB type %#x", ctsio->cdb[0]); 6787 break; /* NOTREACHED */ 6788 } 6789 6790 /* 6791 * If we've got a disk, use its blocksize in the block 6792 * descriptor. Otherwise, just set it to 0. 6793 */ 6794 if (dbd == 0) { 6795 if (control_dev == 0) 6796 scsi_ulto3b(lun->be_lun->blocksize, 6797 block_desc->block_len); 6798 else 6799 scsi_ulto3b(0, block_desc->block_len); 6800 } 6801 6802 switch (page_code) { 6803 case SMS_ALL_PAGES_PAGE: { 6804 int i, data_used; 6805 6806 data_used = header_len; 6807 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6808 struct ctl_page_index *page_index; 6809 6810 page_index = &lun->mode_pages.index[i]; 6811 6812 if ((control_dev != 0) 6813 && (page_index->page_flags & 6814 CTL_PAGE_FLAG_DISK_ONLY)) 6815 continue; 6816 6817 /* 6818 * We don't use this subpage if the user didn't 6819 * request all subpages. We already checked (above) 6820 * to make sure the user only specified a subpage 6821 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 6822 */ 6823 if ((page_index->subpage != 0) 6824 && (subpage == SMS_SUBPAGE_PAGE_0)) 6825 continue; 6826 6827 /* 6828 * Call the handler, if it exists, to update the 6829 * page to the latest values. 6830 */ 6831 if (page_index->sense_handler != NULL) 6832 page_index->sense_handler(ctsio, page_index,pc); 6833 6834 memcpy(ctsio->kern_data_ptr + data_used, 6835 page_index->page_data + 6836 (page_index->page_len * pc), 6837 page_index->page_len); 6838 data_used += page_index->page_len; 6839 } 6840 break; 6841 } 6842 default: { 6843 int i, data_used; 6844 6845 data_used = header_len; 6846 6847 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6848 struct ctl_page_index *page_index; 6849 6850 page_index = &lun->mode_pages.index[i]; 6851 6852 /* Look for the right page code */ 6853 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6854 continue; 6855 6856 /* Look for the right subpage or the subpage wildcard*/ 6857 if ((page_index->subpage != subpage) 6858 && (subpage != SMS_SUBPAGE_ALL)) 6859 continue; 6860 6861 /* Make sure the page is supported for this dev type */ 6862 if ((control_dev != 0) 6863 && (page_index->page_flags & 6864 CTL_PAGE_FLAG_DISK_ONLY)) 6865 continue; 6866 6867 /* 6868 * Call the handler, if it exists, to update the 6869 * page to the latest values. 6870 */ 6871 if (page_index->sense_handler != NULL) 6872 page_index->sense_handler(ctsio, page_index,pc); 6873 6874 memcpy(ctsio->kern_data_ptr + data_used, 6875 page_index->page_data + 6876 (page_index->page_len * pc), 6877 page_index->page_len); 6878 data_used += page_index->page_len; 6879 } 6880 break; 6881 } 6882 } 6883 6884 ctsio->scsi_status = SCSI_STATUS_OK; 6885 6886 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6887 ctsio->be_move_done = ctl_config_move_done; 6888 ctl_datamove((union ctl_io *)ctsio); 6889 6890 return (CTL_RETVAL_COMPLETE); 6891} 6892 6893int 6894ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio, 6895 struct ctl_page_index *page_index, 6896 int pc) 6897{ 6898 struct ctl_lun *lun; 6899 struct scsi_log_param_header *phdr; 6900 uint8_t *data; 6901 uint64_t val; 6902 6903 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6904 data = page_index->page_data; 6905 6906 if (lun->backend->lun_attr != NULL && 6907 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksavail")) 6908 != UINT64_MAX) { 6909 phdr = (struct scsi_log_param_header *)data; 6910 scsi_ulto2b(0x0001, phdr->param_code); 6911 phdr->param_control = SLP_LBIN | SLP_LP; 6912 phdr->param_len = 8; 6913 data = (uint8_t *)(phdr + 1); 6914 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6915 data[4] = 0x02; /* per-pool */ 6916 data += phdr->param_len; 6917 } 6918 6919 if (lun->backend->lun_attr != NULL && 6920 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksused")) 6921 != UINT64_MAX) { 6922 phdr = (struct scsi_log_param_header *)data; 6923 scsi_ulto2b(0x0002, phdr->param_code); 6924 phdr->param_control = SLP_LBIN | SLP_LP; 6925 phdr->param_len = 8; 6926 data = (uint8_t *)(phdr + 1); 6927 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6928 data[4] = 0x01; /* per-LUN */ 6929 data += phdr->param_len; 6930 } 6931 6932 if (lun->backend->lun_attr != NULL && 6933 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksavail")) 6934 != UINT64_MAX) { 6935 phdr = (struct scsi_log_param_header *)data; 6936 scsi_ulto2b(0x00f1, phdr->param_code); 6937 phdr->param_control = SLP_LBIN | SLP_LP; 6938 phdr->param_len = 8; 6939 data = (uint8_t *)(phdr + 1); 6940 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6941 data[4] = 0x02; /* per-pool */ 6942 data += phdr->param_len; 6943 } 6944 6945 if (lun->backend->lun_attr != NULL && 6946 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksused")) 6947 != UINT64_MAX) { 6948 phdr = (struct scsi_log_param_header *)data; 6949 scsi_ulto2b(0x00f2, phdr->param_code); 6950 phdr->param_control = SLP_LBIN | SLP_LP; 6951 phdr->param_len = 8; 6952 data = (uint8_t *)(phdr + 1); 6953 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6954 data[4] = 0x02; /* per-pool */ 6955 data += phdr->param_len; 6956 } 6957 6958 page_index->page_len = data - page_index->page_data; 6959 return (0); 6960} 6961 6962int 6963ctl_log_sense(struct ctl_scsiio *ctsio) 6964{ 6965 struct ctl_lun *lun; 6966 int i, pc, page_code, subpage; 6967 int alloc_len, total_len; 6968 struct ctl_page_index *page_index; 6969 struct scsi_log_sense *cdb; 6970 struct scsi_log_header *header; 6971 6972 CTL_DEBUG_PRINT(("ctl_log_sense\n")); 6973 6974 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6975 cdb = (struct scsi_log_sense *)ctsio->cdb; 6976 pc = (cdb->page & SLS_PAGE_CTRL_MASK) >> 6; 6977 page_code = cdb->page & SLS_PAGE_CODE; 6978 subpage = cdb->subpage; 6979 alloc_len = scsi_2btoul(cdb->length); 6980 6981 page_index = NULL; 6982 for (i = 0; i < CTL_NUM_LOG_PAGES; i++) { 6983 page_index = &lun->log_pages.index[i]; 6984 6985 /* Look for the right page code */ 6986 if ((page_index->page_code & SL_PAGE_CODE) != page_code) 6987 continue; 6988 6989 /* Look for the right subpage or the subpage wildcard*/ 6990 if (page_index->subpage != subpage) 6991 continue; 6992 6993 break; 6994 } 6995 if (i >= CTL_NUM_LOG_PAGES) { 6996 ctl_set_invalid_field(ctsio, 6997 /*sks_valid*/ 1, 6998 /*command*/ 1, 6999 /*field*/ 2, 7000 /*bit_valid*/ 0, 7001 /*bit*/ 0); 7002 ctl_done((union ctl_io *)ctsio); 7003 return (CTL_RETVAL_COMPLETE); 7004 } 7005 7006 total_len = sizeof(struct scsi_log_header) + page_index->page_len; 7007 7008 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7009 ctsio->kern_sg_entries = 0; 7010 ctsio->kern_data_resid = 0; 7011 ctsio->kern_rel_offset = 0; 7012 if (total_len < alloc_len) { 7013 ctsio->residual = alloc_len - total_len; 7014 ctsio->kern_data_len = total_len; 7015 ctsio->kern_total_len = total_len; 7016 } else { 7017 ctsio->residual = 0; 7018 ctsio->kern_data_len = alloc_len; 7019 ctsio->kern_total_len = alloc_len; 7020 } 7021 7022 header = (struct scsi_log_header *)ctsio->kern_data_ptr; 7023 header->page = page_index->page_code; 7024 if (page_index->subpage) { 7025 header->page |= SL_SPF; 7026 header->subpage = page_index->subpage; 7027 } 7028 scsi_ulto2b(page_index->page_len, header->datalen); 7029 7030 /* 7031 * Call the handler, if it exists, to update the 7032 * page to the latest values. 7033 */ 7034 if (page_index->sense_handler != NULL) 7035 page_index->sense_handler(ctsio, page_index, pc); 7036 7037 memcpy(header + 1, page_index->page_data, page_index->page_len); 7038 7039 ctsio->scsi_status = SCSI_STATUS_OK; 7040 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7041 ctsio->be_move_done = ctl_config_move_done; 7042 ctl_datamove((union ctl_io *)ctsio); 7043 7044 return (CTL_RETVAL_COMPLETE); 7045} 7046 7047int 7048ctl_read_capacity(struct ctl_scsiio *ctsio) 7049{ 7050 struct scsi_read_capacity *cdb; 7051 struct scsi_read_capacity_data *data; 7052 struct ctl_lun *lun; 7053 uint32_t lba; 7054 7055 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 7056 7057 cdb = (struct scsi_read_capacity *)ctsio->cdb; 7058 7059 lba = scsi_4btoul(cdb->addr); 7060 if (((cdb->pmi & SRC_PMI) == 0) 7061 && (lba != 0)) { 7062 ctl_set_invalid_field(/*ctsio*/ ctsio, 7063 /*sks_valid*/ 1, 7064 /*command*/ 1, 7065 /*field*/ 2, 7066 /*bit_valid*/ 0, 7067 /*bit*/ 0); 7068 ctl_done((union ctl_io *)ctsio); 7069 return (CTL_RETVAL_COMPLETE); 7070 } 7071 7072 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7073 7074 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7075 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 7076 ctsio->residual = 0; 7077 ctsio->kern_data_len = sizeof(*data); 7078 ctsio->kern_total_len = sizeof(*data); 7079 ctsio->kern_data_resid = 0; 7080 ctsio->kern_rel_offset = 0; 7081 ctsio->kern_sg_entries = 0; 7082 7083 /* 7084 * If the maximum LBA is greater than 0xfffffffe, the user must 7085 * issue a SERVICE ACTION IN (16) command, with the read capacity 7086 * serivce action set. 7087 */ 7088 if (lun->be_lun->maxlba > 0xfffffffe) 7089 scsi_ulto4b(0xffffffff, data->addr); 7090 else 7091 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 7092 7093 /* 7094 * XXX KDM this may not be 512 bytes... 7095 */ 7096 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7097 7098 ctsio->scsi_status = SCSI_STATUS_OK; 7099 7100 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7101 ctsio->be_move_done = ctl_config_move_done; 7102 ctl_datamove((union ctl_io *)ctsio); 7103 7104 return (CTL_RETVAL_COMPLETE); 7105} 7106 7107int 7108ctl_read_capacity_16(struct ctl_scsiio *ctsio) 7109{ 7110 struct scsi_read_capacity_16 *cdb; 7111 struct scsi_read_capacity_data_long *data; 7112 struct ctl_lun *lun; 7113 uint64_t lba; 7114 uint32_t alloc_len; 7115 7116 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 7117 7118 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 7119 7120 alloc_len = scsi_4btoul(cdb->alloc_len); 7121 lba = scsi_8btou64(cdb->addr); 7122 7123 if ((cdb->reladr & SRC16_PMI) 7124 && (lba != 0)) { 7125 ctl_set_invalid_field(/*ctsio*/ ctsio, 7126 /*sks_valid*/ 1, 7127 /*command*/ 1, 7128 /*field*/ 2, 7129 /*bit_valid*/ 0, 7130 /*bit*/ 0); 7131 ctl_done((union ctl_io *)ctsio); 7132 return (CTL_RETVAL_COMPLETE); 7133 } 7134 7135 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7136 7137 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7138 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 7139 7140 if (sizeof(*data) < alloc_len) { 7141 ctsio->residual = alloc_len - sizeof(*data); 7142 ctsio->kern_data_len = sizeof(*data); 7143 ctsio->kern_total_len = sizeof(*data); 7144 } else { 7145 ctsio->residual = 0; 7146 ctsio->kern_data_len = alloc_len; 7147 ctsio->kern_total_len = alloc_len; 7148 } 7149 ctsio->kern_data_resid = 0; 7150 ctsio->kern_rel_offset = 0; 7151 ctsio->kern_sg_entries = 0; 7152 7153 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7154 /* XXX KDM this may not be 512 bytes... */ 7155 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7156 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7157 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7158 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7159 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 7160 7161 ctsio->scsi_status = SCSI_STATUS_OK; 7162 7163 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7164 ctsio->be_move_done = ctl_config_move_done; 7165 ctl_datamove((union ctl_io *)ctsio); 7166 7167 return (CTL_RETVAL_COMPLETE); 7168} 7169 7170int 7171ctl_read_defect(struct ctl_scsiio *ctsio) 7172{ 7173 struct scsi_read_defect_data_10 *ccb10; 7174 struct scsi_read_defect_data_12 *ccb12; 7175 struct scsi_read_defect_data_hdr_10 *data10; 7176 struct scsi_read_defect_data_hdr_12 *data12; 7177 uint32_t alloc_len, data_len; 7178 uint8_t format; 7179 7180 CTL_DEBUG_PRINT(("ctl_read_defect\n")); 7181 7182 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7183 ccb10 = (struct scsi_read_defect_data_10 *)&ctsio->cdb; 7184 format = ccb10->format; 7185 alloc_len = scsi_2btoul(ccb10->alloc_length); 7186 data_len = sizeof(*data10); 7187 } else { 7188 ccb12 = (struct scsi_read_defect_data_12 *)&ctsio->cdb; 7189 format = ccb12->format; 7190 alloc_len = scsi_4btoul(ccb12->alloc_length); 7191 data_len = sizeof(*data12); 7192 } 7193 if (alloc_len == 0) { 7194 ctl_set_success(ctsio); 7195 ctl_done((union ctl_io *)ctsio); 7196 return (CTL_RETVAL_COMPLETE); 7197 } 7198 7199 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 7200 if (data_len < alloc_len) { 7201 ctsio->residual = alloc_len - data_len; 7202 ctsio->kern_data_len = data_len; 7203 ctsio->kern_total_len = data_len; 7204 } else { 7205 ctsio->residual = 0; 7206 ctsio->kern_data_len = alloc_len; 7207 ctsio->kern_total_len = alloc_len; 7208 } 7209 ctsio->kern_data_resid = 0; 7210 ctsio->kern_rel_offset = 0; 7211 ctsio->kern_sg_entries = 0; 7212 7213 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7214 data10 = (struct scsi_read_defect_data_hdr_10 *) 7215 ctsio->kern_data_ptr; 7216 data10->format = format; 7217 scsi_ulto2b(0, data10->length); 7218 } else { 7219 data12 = (struct scsi_read_defect_data_hdr_12 *) 7220 ctsio->kern_data_ptr; 7221 data12->format = format; 7222 scsi_ulto2b(0, data12->generation); 7223 scsi_ulto4b(0, data12->length); 7224 } 7225 7226 ctsio->scsi_status = SCSI_STATUS_OK; 7227 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7228 ctsio->be_move_done = ctl_config_move_done; 7229 ctl_datamove((union ctl_io *)ctsio); 7230 return (CTL_RETVAL_COMPLETE); 7231} 7232 7233int 7234ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7235{ 7236 struct scsi_maintenance_in *cdb; 7237 int retval; 7238 int alloc_len, ext, total_len = 0, g, p, pc, pg, gs, os; 7239 int num_target_port_groups, num_target_ports; 7240 struct ctl_lun *lun; 7241 struct ctl_softc *softc; 7242 struct ctl_port *port; 7243 struct scsi_target_group_data *rtg_ptr; 7244 struct scsi_target_group_data_extended *rtg_ext_ptr; 7245 struct scsi_target_port_group_descriptor *tpg_desc; 7246 7247 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7248 7249 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7250 softc = control_softc; 7251 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7252 7253 retval = CTL_RETVAL_COMPLETE; 7254 7255 switch (cdb->byte2 & STG_PDF_MASK) { 7256 case STG_PDF_LENGTH: 7257 ext = 0; 7258 break; 7259 case STG_PDF_EXTENDED: 7260 ext = 1; 7261 break; 7262 default: 7263 ctl_set_invalid_field(/*ctsio*/ ctsio, 7264 /*sks_valid*/ 1, 7265 /*command*/ 1, 7266 /*field*/ 2, 7267 /*bit_valid*/ 1, 7268 /*bit*/ 5); 7269 ctl_done((union ctl_io *)ctsio); 7270 return(retval); 7271 } 7272 7273 if (softc->is_single) 7274 num_target_port_groups = 1; 7275 else 7276 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7277 num_target_ports = 0; 7278 mtx_lock(&softc->ctl_lock); 7279 STAILQ_FOREACH(port, &softc->port_list, links) { 7280 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7281 continue; 7282 if (ctl_map_lun_back(port->targ_port, lun->lun) >= CTL_MAX_LUNS) 7283 continue; 7284 num_target_ports++; 7285 } 7286 mtx_unlock(&softc->ctl_lock); 7287 7288 if (ext) 7289 total_len = sizeof(struct scsi_target_group_data_extended); 7290 else 7291 total_len = sizeof(struct scsi_target_group_data); 7292 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7293 num_target_port_groups + 7294 sizeof(struct scsi_target_port_descriptor) * 7295 num_target_ports * num_target_port_groups; 7296 7297 alloc_len = scsi_4btoul(cdb->length); 7298 7299 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7300 7301 ctsio->kern_sg_entries = 0; 7302 7303 if (total_len < alloc_len) { 7304 ctsio->residual = alloc_len - total_len; 7305 ctsio->kern_data_len = total_len; 7306 ctsio->kern_total_len = total_len; 7307 } else { 7308 ctsio->residual = 0; 7309 ctsio->kern_data_len = alloc_len; 7310 ctsio->kern_total_len = alloc_len; 7311 } 7312 ctsio->kern_data_resid = 0; 7313 ctsio->kern_rel_offset = 0; 7314 7315 if (ext) { 7316 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7317 ctsio->kern_data_ptr; 7318 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7319 rtg_ext_ptr->format_type = 0x10; 7320 rtg_ext_ptr->implicit_transition_time = 0; 7321 tpg_desc = &rtg_ext_ptr->groups[0]; 7322 } else { 7323 rtg_ptr = (struct scsi_target_group_data *) 7324 ctsio->kern_data_ptr; 7325 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7326 tpg_desc = &rtg_ptr->groups[0]; 7327 } 7328 7329 mtx_lock(&softc->ctl_lock); 7330 pg = softc->port_offset / CTL_MAX_PORTS; 7331 if (softc->flags & CTL_FLAG_ACTIVE_SHELF) { 7332 if (softc->ha_mode == CTL_HA_MODE_ACT_STBY) { 7333 gs = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7334 os = TPG_ASYMMETRIC_ACCESS_STANDBY; 7335 } else if (lun->flags & CTL_LUN_PRIMARY_SC) { 7336 gs = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7337 os = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7338 } else { 7339 gs = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7340 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7341 } 7342 } else { 7343 gs = TPG_ASYMMETRIC_ACCESS_STANDBY; 7344 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7345 } 7346 for (g = 0; g < num_target_port_groups; g++) { 7347 tpg_desc->pref_state = (g == pg) ? gs : os; 7348 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP; 7349 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7350 tpg_desc->status = TPG_IMPLICIT; 7351 pc = 0; 7352 STAILQ_FOREACH(port, &softc->port_list, links) { 7353 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7354 continue; 7355 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 7356 CTL_MAX_LUNS) 7357 continue; 7358 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 7359 scsi_ulto2b(p, tpg_desc->descriptors[pc]. 7360 relative_target_port_identifier); 7361 pc++; 7362 } 7363 tpg_desc->target_port_count = pc; 7364 tpg_desc = (struct scsi_target_port_group_descriptor *) 7365 &tpg_desc->descriptors[pc]; 7366 } 7367 mtx_unlock(&softc->ctl_lock); 7368 7369 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7370 ctsio->be_move_done = ctl_config_move_done; 7371 7372 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7373 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7374 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7375 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7376 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7377 7378 ctl_datamove((union ctl_io *)ctsio); 7379 return(retval); 7380} 7381 7382int 7383ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7384{ 7385 struct ctl_lun *lun; 7386 struct scsi_report_supported_opcodes *cdb; 7387 const struct ctl_cmd_entry *entry, *sentry; 7388 struct scsi_report_supported_opcodes_all *all; 7389 struct scsi_report_supported_opcodes_descr *descr; 7390 struct scsi_report_supported_opcodes_one *one; 7391 int retval; 7392 int alloc_len, total_len; 7393 int opcode, service_action, i, j, num; 7394 7395 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7396 7397 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7398 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7399 7400 retval = CTL_RETVAL_COMPLETE; 7401 7402 opcode = cdb->requested_opcode; 7403 service_action = scsi_2btoul(cdb->requested_service_action); 7404 switch (cdb->options & RSO_OPTIONS_MASK) { 7405 case RSO_OPTIONS_ALL: 7406 num = 0; 7407 for (i = 0; i < 256; i++) { 7408 entry = &ctl_cmd_table[i]; 7409 if (entry->flags & CTL_CMD_FLAG_SA5) { 7410 for (j = 0; j < 32; j++) { 7411 sentry = &((const struct ctl_cmd_entry *) 7412 entry->execute)[j]; 7413 if (ctl_cmd_applicable( 7414 lun->be_lun->lun_type, sentry)) 7415 num++; 7416 } 7417 } else { 7418 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7419 entry)) 7420 num++; 7421 } 7422 } 7423 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7424 num * sizeof(struct scsi_report_supported_opcodes_descr); 7425 break; 7426 case RSO_OPTIONS_OC: 7427 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7428 ctl_set_invalid_field(/*ctsio*/ ctsio, 7429 /*sks_valid*/ 1, 7430 /*command*/ 1, 7431 /*field*/ 2, 7432 /*bit_valid*/ 1, 7433 /*bit*/ 2); 7434 ctl_done((union ctl_io *)ctsio); 7435 return (CTL_RETVAL_COMPLETE); 7436 } 7437 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7438 break; 7439 case RSO_OPTIONS_OC_SA: 7440 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7441 service_action >= 32) { 7442 ctl_set_invalid_field(/*ctsio*/ ctsio, 7443 /*sks_valid*/ 1, 7444 /*command*/ 1, 7445 /*field*/ 2, 7446 /*bit_valid*/ 1, 7447 /*bit*/ 2); 7448 ctl_done((union ctl_io *)ctsio); 7449 return (CTL_RETVAL_COMPLETE); 7450 } 7451 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7452 break; 7453 default: 7454 ctl_set_invalid_field(/*ctsio*/ ctsio, 7455 /*sks_valid*/ 1, 7456 /*command*/ 1, 7457 /*field*/ 2, 7458 /*bit_valid*/ 1, 7459 /*bit*/ 2); 7460 ctl_done((union ctl_io *)ctsio); 7461 return (CTL_RETVAL_COMPLETE); 7462 } 7463 7464 alloc_len = scsi_4btoul(cdb->length); 7465 7466 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7467 7468 ctsio->kern_sg_entries = 0; 7469 7470 if (total_len < alloc_len) { 7471 ctsio->residual = alloc_len - total_len; 7472 ctsio->kern_data_len = total_len; 7473 ctsio->kern_total_len = total_len; 7474 } else { 7475 ctsio->residual = 0; 7476 ctsio->kern_data_len = alloc_len; 7477 ctsio->kern_total_len = alloc_len; 7478 } 7479 ctsio->kern_data_resid = 0; 7480 ctsio->kern_rel_offset = 0; 7481 7482 switch (cdb->options & RSO_OPTIONS_MASK) { 7483 case RSO_OPTIONS_ALL: 7484 all = (struct scsi_report_supported_opcodes_all *) 7485 ctsio->kern_data_ptr; 7486 num = 0; 7487 for (i = 0; i < 256; i++) { 7488 entry = &ctl_cmd_table[i]; 7489 if (entry->flags & CTL_CMD_FLAG_SA5) { 7490 for (j = 0; j < 32; j++) { 7491 sentry = &((const struct ctl_cmd_entry *) 7492 entry->execute)[j]; 7493 if (!ctl_cmd_applicable( 7494 lun->be_lun->lun_type, sentry)) 7495 continue; 7496 descr = &all->descr[num++]; 7497 descr->opcode = i; 7498 scsi_ulto2b(j, descr->service_action); 7499 descr->flags = RSO_SERVACTV; 7500 scsi_ulto2b(sentry->length, 7501 descr->cdb_length); 7502 } 7503 } else { 7504 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7505 entry)) 7506 continue; 7507 descr = &all->descr[num++]; 7508 descr->opcode = i; 7509 scsi_ulto2b(0, descr->service_action); 7510 descr->flags = 0; 7511 scsi_ulto2b(entry->length, descr->cdb_length); 7512 } 7513 } 7514 scsi_ulto4b( 7515 num * sizeof(struct scsi_report_supported_opcodes_descr), 7516 all->length); 7517 break; 7518 case RSO_OPTIONS_OC: 7519 one = (struct scsi_report_supported_opcodes_one *) 7520 ctsio->kern_data_ptr; 7521 entry = &ctl_cmd_table[opcode]; 7522 goto fill_one; 7523 case RSO_OPTIONS_OC_SA: 7524 one = (struct scsi_report_supported_opcodes_one *) 7525 ctsio->kern_data_ptr; 7526 entry = &ctl_cmd_table[opcode]; 7527 entry = &((const struct ctl_cmd_entry *) 7528 entry->execute)[service_action]; 7529fill_one: 7530 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7531 one->support = 3; 7532 scsi_ulto2b(entry->length, one->cdb_length); 7533 one->cdb_usage[0] = opcode; 7534 memcpy(&one->cdb_usage[1], entry->usage, 7535 entry->length - 1); 7536 } else 7537 one->support = 1; 7538 break; 7539 } 7540 7541 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7542 ctsio->be_move_done = ctl_config_move_done; 7543 7544 ctl_datamove((union ctl_io *)ctsio); 7545 return(retval); 7546} 7547 7548int 7549ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7550{ 7551 struct scsi_report_supported_tmf *cdb; 7552 struct scsi_report_supported_tmf_data *data; 7553 int retval; 7554 int alloc_len, total_len; 7555 7556 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7557 7558 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7559 7560 retval = CTL_RETVAL_COMPLETE; 7561 7562 total_len = sizeof(struct scsi_report_supported_tmf_data); 7563 alloc_len = scsi_4btoul(cdb->length); 7564 7565 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7566 7567 ctsio->kern_sg_entries = 0; 7568 7569 if (total_len < alloc_len) { 7570 ctsio->residual = alloc_len - total_len; 7571 ctsio->kern_data_len = total_len; 7572 ctsio->kern_total_len = total_len; 7573 } else { 7574 ctsio->residual = 0; 7575 ctsio->kern_data_len = alloc_len; 7576 ctsio->kern_total_len = alloc_len; 7577 } 7578 ctsio->kern_data_resid = 0; 7579 ctsio->kern_rel_offset = 0; 7580 7581 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7582 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_TRS; 7583 data->byte2 |= RST_ITNRS; 7584 7585 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7586 ctsio->be_move_done = ctl_config_move_done; 7587 7588 ctl_datamove((union ctl_io *)ctsio); 7589 return (retval); 7590} 7591 7592int 7593ctl_report_timestamp(struct ctl_scsiio *ctsio) 7594{ 7595 struct scsi_report_timestamp *cdb; 7596 struct scsi_report_timestamp_data *data; 7597 struct timeval tv; 7598 int64_t timestamp; 7599 int retval; 7600 int alloc_len, total_len; 7601 7602 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7603 7604 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7605 7606 retval = CTL_RETVAL_COMPLETE; 7607 7608 total_len = sizeof(struct scsi_report_timestamp_data); 7609 alloc_len = scsi_4btoul(cdb->length); 7610 7611 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7612 7613 ctsio->kern_sg_entries = 0; 7614 7615 if (total_len < alloc_len) { 7616 ctsio->residual = alloc_len - total_len; 7617 ctsio->kern_data_len = total_len; 7618 ctsio->kern_total_len = total_len; 7619 } else { 7620 ctsio->residual = 0; 7621 ctsio->kern_data_len = alloc_len; 7622 ctsio->kern_total_len = alloc_len; 7623 } 7624 ctsio->kern_data_resid = 0; 7625 ctsio->kern_rel_offset = 0; 7626 7627 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7628 scsi_ulto2b(sizeof(*data) - 2, data->length); 7629 data->origin = RTS_ORIG_OUTSIDE; 7630 getmicrotime(&tv); 7631 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7632 scsi_ulto4b(timestamp >> 16, data->timestamp); 7633 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7634 7635 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7636 ctsio->be_move_done = ctl_config_move_done; 7637 7638 ctl_datamove((union ctl_io *)ctsio); 7639 return (retval); 7640} 7641 7642int 7643ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7644{ 7645 struct scsi_per_res_in *cdb; 7646 int alloc_len, total_len = 0; 7647 /* struct scsi_per_res_in_rsrv in_data; */ 7648 struct ctl_lun *lun; 7649 struct ctl_softc *softc; 7650 7651 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7652 7653 softc = control_softc; 7654 7655 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7656 7657 alloc_len = scsi_2btoul(cdb->length); 7658 7659 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7660 7661retry: 7662 mtx_lock(&lun->lun_lock); 7663 switch (cdb->action) { 7664 case SPRI_RK: /* read keys */ 7665 total_len = sizeof(struct scsi_per_res_in_keys) + 7666 lun->pr_key_count * 7667 sizeof(struct scsi_per_res_key); 7668 break; 7669 case SPRI_RR: /* read reservation */ 7670 if (lun->flags & CTL_LUN_PR_RESERVED) 7671 total_len = sizeof(struct scsi_per_res_in_rsrv); 7672 else 7673 total_len = sizeof(struct scsi_per_res_in_header); 7674 break; 7675 case SPRI_RC: /* report capabilities */ 7676 total_len = sizeof(struct scsi_per_res_cap); 7677 break; 7678 case SPRI_RS: /* read full status */ 7679 total_len = sizeof(struct scsi_per_res_in_header) + 7680 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7681 lun->pr_key_count; 7682 break; 7683 default: 7684 panic("Invalid PR type %x", cdb->action); 7685 } 7686 mtx_unlock(&lun->lun_lock); 7687 7688 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7689 7690 if (total_len < alloc_len) { 7691 ctsio->residual = alloc_len - total_len; 7692 ctsio->kern_data_len = total_len; 7693 ctsio->kern_total_len = total_len; 7694 } else { 7695 ctsio->residual = 0; 7696 ctsio->kern_data_len = alloc_len; 7697 ctsio->kern_total_len = alloc_len; 7698 } 7699 7700 ctsio->kern_data_resid = 0; 7701 ctsio->kern_rel_offset = 0; 7702 ctsio->kern_sg_entries = 0; 7703 7704 mtx_lock(&lun->lun_lock); 7705 switch (cdb->action) { 7706 case SPRI_RK: { // read keys 7707 struct scsi_per_res_in_keys *res_keys; 7708 int i, key_count; 7709 7710 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7711 7712 /* 7713 * We had to drop the lock to allocate our buffer, which 7714 * leaves time for someone to come in with another 7715 * persistent reservation. (That is unlikely, though, 7716 * since this should be the only persistent reservation 7717 * command active right now.) 7718 */ 7719 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7720 (lun->pr_key_count * 7721 sizeof(struct scsi_per_res_key)))){ 7722 mtx_unlock(&lun->lun_lock); 7723 free(ctsio->kern_data_ptr, M_CTL); 7724 printf("%s: reservation length changed, retrying\n", 7725 __func__); 7726 goto retry; 7727 } 7728 7729 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7730 7731 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7732 lun->pr_key_count, res_keys->header.length); 7733 7734 for (i = 0, key_count = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7735 if (lun->pr_keys[i] == 0) 7736 continue; 7737 7738 /* 7739 * We used lun->pr_key_count to calculate the 7740 * size to allocate. If it turns out the number of 7741 * initiators with the registered flag set is 7742 * larger than that (i.e. they haven't been kept in 7743 * sync), we've got a problem. 7744 */ 7745 if (key_count >= lun->pr_key_count) { 7746#ifdef NEEDTOPORT 7747 csevent_log(CSC_CTL | CSC_SHELF_SW | 7748 CTL_PR_ERROR, 7749 csevent_LogType_Fault, 7750 csevent_AlertLevel_Yellow, 7751 csevent_FRU_ShelfController, 7752 csevent_FRU_Firmware, 7753 csevent_FRU_Unknown, 7754 "registered keys %d >= key " 7755 "count %d", key_count, 7756 lun->pr_key_count); 7757#endif 7758 key_count++; 7759 continue; 7760 } 7761 scsi_u64to8b(lun->pr_keys[i], 7762 res_keys->keys[key_count].key); 7763 key_count++; 7764 } 7765 break; 7766 } 7767 case SPRI_RR: { // read reservation 7768 struct scsi_per_res_in_rsrv *res; 7769 int tmp_len, header_only; 7770 7771 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7772 7773 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7774 7775 if (lun->flags & CTL_LUN_PR_RESERVED) 7776 { 7777 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7778 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7779 res->header.length); 7780 header_only = 0; 7781 } else { 7782 tmp_len = sizeof(struct scsi_per_res_in_header); 7783 scsi_ulto4b(0, res->header.length); 7784 header_only = 1; 7785 } 7786 7787 /* 7788 * We had to drop the lock to allocate our buffer, which 7789 * leaves time for someone to come in with another 7790 * persistent reservation. (That is unlikely, though, 7791 * since this should be the only persistent reservation 7792 * command active right now.) 7793 */ 7794 if (tmp_len != total_len) { 7795 mtx_unlock(&lun->lun_lock); 7796 free(ctsio->kern_data_ptr, M_CTL); 7797 printf("%s: reservation status changed, retrying\n", 7798 __func__); 7799 goto retry; 7800 } 7801 7802 /* 7803 * No reservation held, so we're done. 7804 */ 7805 if (header_only != 0) 7806 break; 7807 7808 /* 7809 * If the registration is an All Registrants type, the key 7810 * is 0, since it doesn't really matter. 7811 */ 7812 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7813 scsi_u64to8b(lun->pr_keys[lun->pr_res_idx], 7814 res->data.reservation); 7815 } 7816 res->data.scopetype = lun->res_type; 7817 break; 7818 } 7819 case SPRI_RC: //report capabilities 7820 { 7821 struct scsi_per_res_cap *res_cap; 7822 uint16_t type_mask; 7823 7824 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7825 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7826 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_5; 7827 type_mask = SPRI_TM_WR_EX_AR | 7828 SPRI_TM_EX_AC_RO | 7829 SPRI_TM_WR_EX_RO | 7830 SPRI_TM_EX_AC | 7831 SPRI_TM_WR_EX | 7832 SPRI_TM_EX_AC_AR; 7833 scsi_ulto2b(type_mask, res_cap->type_mask); 7834 break; 7835 } 7836 case SPRI_RS: { // read full status 7837 struct scsi_per_res_in_full *res_status; 7838 struct scsi_per_res_in_full_desc *res_desc; 7839 struct ctl_port *port; 7840 int i, len; 7841 7842 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7843 7844 /* 7845 * We had to drop the lock to allocate our buffer, which 7846 * leaves time for someone to come in with another 7847 * persistent reservation. (That is unlikely, though, 7848 * since this should be the only persistent reservation 7849 * command active right now.) 7850 */ 7851 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7852 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7853 lun->pr_key_count)){ 7854 mtx_unlock(&lun->lun_lock); 7855 free(ctsio->kern_data_ptr, M_CTL); 7856 printf("%s: reservation length changed, retrying\n", 7857 __func__); 7858 goto retry; 7859 } 7860 7861 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 7862 7863 res_desc = &res_status->desc[0]; 7864 for (i = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7865 if (lun->pr_keys[i] == 0) 7866 continue; 7867 7868 scsi_u64to8b(lun->pr_keys[i], res_desc->res_key.key); 7869 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7870 (lun->pr_res_idx == i || 7871 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7872 res_desc->flags = SPRI_FULL_R_HOLDER; 7873 res_desc->scopetype = lun->res_type; 7874 } 7875 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7876 res_desc->rel_trgt_port_id); 7877 len = 0; 7878 port = softc->ctl_ports[ 7879 ctl_port_idx(i / CTL_MAX_INIT_PER_PORT)]; 7880 if (port != NULL) 7881 len = ctl_create_iid(port, 7882 i % CTL_MAX_INIT_PER_PORT, 7883 res_desc->transport_id); 7884 scsi_ulto4b(len, res_desc->additional_length); 7885 res_desc = (struct scsi_per_res_in_full_desc *) 7886 &res_desc->transport_id[len]; 7887 } 7888 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7889 res_status->header.length); 7890 break; 7891 } 7892 default: 7893 /* 7894 * This is a bug, because we just checked for this above, 7895 * and should have returned an error. 7896 */ 7897 panic("Invalid PR type %x", cdb->action); 7898 break; /* NOTREACHED */ 7899 } 7900 mtx_unlock(&lun->lun_lock); 7901 7902 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7903 ctsio->be_move_done = ctl_config_move_done; 7904 7905 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7906 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7907 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7908 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7909 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7910 7911 ctl_datamove((union ctl_io *)ctsio); 7912 7913 return (CTL_RETVAL_COMPLETE); 7914} 7915 7916/* 7917 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7918 * it should return. 7919 */ 7920static int 7921ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7922 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7923 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7924 struct scsi_per_res_out_parms* param) 7925{ 7926 union ctl_ha_msg persis_io; 7927 int retval, i; 7928 int isc_retval; 7929 7930 retval = 0; 7931 7932 mtx_lock(&lun->lun_lock); 7933 if (sa_res_key == 0) { 7934 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7935 /* validate scope and type */ 7936 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7937 SPR_LU_SCOPE) { 7938 mtx_unlock(&lun->lun_lock); 7939 ctl_set_invalid_field(/*ctsio*/ ctsio, 7940 /*sks_valid*/ 1, 7941 /*command*/ 1, 7942 /*field*/ 2, 7943 /*bit_valid*/ 1, 7944 /*bit*/ 4); 7945 ctl_done((union ctl_io *)ctsio); 7946 return (1); 7947 } 7948 7949 if (type>8 || type==2 || type==4 || type==0) { 7950 mtx_unlock(&lun->lun_lock); 7951 ctl_set_invalid_field(/*ctsio*/ ctsio, 7952 /*sks_valid*/ 1, 7953 /*command*/ 1, 7954 /*field*/ 2, 7955 /*bit_valid*/ 1, 7956 /*bit*/ 0); 7957 ctl_done((union ctl_io *)ctsio); 7958 return (1); 7959 } 7960 7961 /* 7962 * Unregister everybody else and build UA for 7963 * them 7964 */ 7965 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 7966 if (i == residx || lun->pr_keys[i] == 0) 7967 continue; 7968 7969 if (!persis_offset 7970 && i <CTL_MAX_INITIATORS) 7971 lun->pending_ua[i] |= 7972 CTL_UA_REG_PREEMPT; 7973 else if (persis_offset 7974 && i >= persis_offset) 7975 lun->pending_ua[i-persis_offset] |= 7976 CTL_UA_REG_PREEMPT; 7977 lun->pr_keys[i] = 0; 7978 } 7979 lun->pr_key_count = 1; 7980 lun->res_type = type; 7981 if (lun->res_type != SPR_TYPE_WR_EX_AR 7982 && lun->res_type != SPR_TYPE_EX_AC_AR) 7983 lun->pr_res_idx = residx; 7984 7985 /* send msg to other side */ 7986 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7987 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7988 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7989 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7990 persis_io.pr.pr_info.res_type = type; 7991 memcpy(persis_io.pr.pr_info.sa_res_key, 7992 param->serv_act_res_key, 7993 sizeof(param->serv_act_res_key)); 7994 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 7995 &persis_io, sizeof(persis_io), 0)) > 7996 CTL_HA_STATUS_SUCCESS) { 7997 printf("CTL:Persis Out error returned " 7998 "from ctl_ha_msg_send %d\n", 7999 isc_retval); 8000 } 8001 } else { 8002 /* not all registrants */ 8003 mtx_unlock(&lun->lun_lock); 8004 free(ctsio->kern_data_ptr, M_CTL); 8005 ctl_set_invalid_field(ctsio, 8006 /*sks_valid*/ 1, 8007 /*command*/ 0, 8008 /*field*/ 8, 8009 /*bit_valid*/ 0, 8010 /*bit*/ 0); 8011 ctl_done((union ctl_io *)ctsio); 8012 return (1); 8013 } 8014 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8015 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 8016 int found = 0; 8017 8018 if (res_key == sa_res_key) { 8019 /* special case */ 8020 /* 8021 * The spec implies this is not good but doesn't 8022 * say what to do. There are two choices either 8023 * generate a res conflict or check condition 8024 * with illegal field in parameter data. Since 8025 * that is what is done when the sa_res_key is 8026 * zero I'll take that approach since this has 8027 * to do with the sa_res_key. 8028 */ 8029 mtx_unlock(&lun->lun_lock); 8030 free(ctsio->kern_data_ptr, M_CTL); 8031 ctl_set_invalid_field(ctsio, 8032 /*sks_valid*/ 1, 8033 /*command*/ 0, 8034 /*field*/ 8, 8035 /*bit_valid*/ 0, 8036 /*bit*/ 0); 8037 ctl_done((union ctl_io *)ctsio); 8038 return (1); 8039 } 8040 8041 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8042 if (lun->pr_keys[i] != sa_res_key) 8043 continue; 8044 8045 found = 1; 8046 lun->pr_keys[i] = 0; 8047 lun->pr_key_count--; 8048 8049 if (!persis_offset && i < CTL_MAX_INITIATORS) 8050 lun->pending_ua[i] |= CTL_UA_REG_PREEMPT; 8051 else if (persis_offset && i >= persis_offset) 8052 lun->pending_ua[i-persis_offset] |= 8053 CTL_UA_REG_PREEMPT; 8054 } 8055 if (!found) { 8056 mtx_unlock(&lun->lun_lock); 8057 free(ctsio->kern_data_ptr, M_CTL); 8058 ctl_set_reservation_conflict(ctsio); 8059 ctl_done((union ctl_io *)ctsio); 8060 return (CTL_RETVAL_COMPLETE); 8061 } 8062 /* send msg to other side */ 8063 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8064 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8065 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8066 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8067 persis_io.pr.pr_info.res_type = type; 8068 memcpy(persis_io.pr.pr_info.sa_res_key, 8069 param->serv_act_res_key, 8070 sizeof(param->serv_act_res_key)); 8071 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8072 &persis_io, sizeof(persis_io), 0)) > 8073 CTL_HA_STATUS_SUCCESS) { 8074 printf("CTL:Persis Out error returned from " 8075 "ctl_ha_msg_send %d\n", isc_retval); 8076 } 8077 } else { 8078 /* Reserved but not all registrants */ 8079 /* sa_res_key is res holder */ 8080 if (sa_res_key == lun->pr_keys[lun->pr_res_idx]) { 8081 /* validate scope and type */ 8082 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8083 SPR_LU_SCOPE) { 8084 mtx_unlock(&lun->lun_lock); 8085 ctl_set_invalid_field(/*ctsio*/ ctsio, 8086 /*sks_valid*/ 1, 8087 /*command*/ 1, 8088 /*field*/ 2, 8089 /*bit_valid*/ 1, 8090 /*bit*/ 4); 8091 ctl_done((union ctl_io *)ctsio); 8092 return (1); 8093 } 8094 8095 if (type>8 || type==2 || type==4 || type==0) { 8096 mtx_unlock(&lun->lun_lock); 8097 ctl_set_invalid_field(/*ctsio*/ ctsio, 8098 /*sks_valid*/ 1, 8099 /*command*/ 1, 8100 /*field*/ 2, 8101 /*bit_valid*/ 1, 8102 /*bit*/ 0); 8103 ctl_done((union ctl_io *)ctsio); 8104 return (1); 8105 } 8106 8107 /* 8108 * Do the following: 8109 * if sa_res_key != res_key remove all 8110 * registrants w/sa_res_key and generate UA 8111 * for these registrants(Registrations 8112 * Preempted) if it wasn't an exclusive 8113 * reservation generate UA(Reservations 8114 * Preempted) for all other registered nexuses 8115 * if the type has changed. Establish the new 8116 * reservation and holder. If res_key and 8117 * sa_res_key are the same do the above 8118 * except don't unregister the res holder. 8119 */ 8120 8121 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8122 if (i == residx || lun->pr_keys[i] == 0) 8123 continue; 8124 8125 if (sa_res_key == lun->pr_keys[i]) { 8126 lun->pr_keys[i] = 0; 8127 lun->pr_key_count--; 8128 8129 if (!persis_offset 8130 && i < CTL_MAX_INITIATORS) 8131 lun->pending_ua[i] |= 8132 CTL_UA_REG_PREEMPT; 8133 else if (persis_offset 8134 && i >= persis_offset) 8135 lun->pending_ua[i-persis_offset] |= 8136 CTL_UA_REG_PREEMPT; 8137 } else if (type != lun->res_type 8138 && (lun->res_type == SPR_TYPE_WR_EX_RO 8139 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 8140 if (!persis_offset 8141 && i < CTL_MAX_INITIATORS) 8142 lun->pending_ua[i] |= 8143 CTL_UA_RES_RELEASE; 8144 else if (persis_offset 8145 && i >= persis_offset) 8146 lun->pending_ua[ 8147 i-persis_offset] |= 8148 CTL_UA_RES_RELEASE; 8149 } 8150 } 8151 lun->res_type = type; 8152 if (lun->res_type != SPR_TYPE_WR_EX_AR 8153 && lun->res_type != SPR_TYPE_EX_AC_AR) 8154 lun->pr_res_idx = residx; 8155 else 8156 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8157 8158 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8159 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8160 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8161 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8162 persis_io.pr.pr_info.res_type = type; 8163 memcpy(persis_io.pr.pr_info.sa_res_key, 8164 param->serv_act_res_key, 8165 sizeof(param->serv_act_res_key)); 8166 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8167 &persis_io, sizeof(persis_io), 0)) > 8168 CTL_HA_STATUS_SUCCESS) { 8169 printf("CTL:Persis Out error returned " 8170 "from ctl_ha_msg_send %d\n", 8171 isc_retval); 8172 } 8173 } else { 8174 /* 8175 * sa_res_key is not the res holder just 8176 * remove registrants 8177 */ 8178 int found=0; 8179 8180 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8181 if (sa_res_key != lun->pr_keys[i]) 8182 continue; 8183 8184 found = 1; 8185 lun->pr_keys[i] = 0; 8186 lun->pr_key_count--; 8187 8188 if (!persis_offset 8189 && i < CTL_MAX_INITIATORS) 8190 lun->pending_ua[i] |= 8191 CTL_UA_REG_PREEMPT; 8192 else if (persis_offset 8193 && i >= persis_offset) 8194 lun->pending_ua[i-persis_offset] |= 8195 CTL_UA_REG_PREEMPT; 8196 } 8197 8198 if (!found) { 8199 mtx_unlock(&lun->lun_lock); 8200 free(ctsio->kern_data_ptr, M_CTL); 8201 ctl_set_reservation_conflict(ctsio); 8202 ctl_done((union ctl_io *)ctsio); 8203 return (1); 8204 } 8205 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8206 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8207 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8208 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8209 persis_io.pr.pr_info.res_type = type; 8210 memcpy(persis_io.pr.pr_info.sa_res_key, 8211 param->serv_act_res_key, 8212 sizeof(param->serv_act_res_key)); 8213 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8214 &persis_io, sizeof(persis_io), 0)) > 8215 CTL_HA_STATUS_SUCCESS) { 8216 printf("CTL:Persis Out error returned " 8217 "from ctl_ha_msg_send %d\n", 8218 isc_retval); 8219 } 8220 } 8221 } 8222 8223 lun->PRGeneration++; 8224 mtx_unlock(&lun->lun_lock); 8225 8226 return (retval); 8227} 8228 8229static void 8230ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8231{ 8232 uint64_t sa_res_key; 8233 int i; 8234 8235 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8236 8237 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8238 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8239 || sa_res_key != lun->pr_keys[lun->pr_res_idx]) { 8240 if (sa_res_key == 0) { 8241 /* 8242 * Unregister everybody else and build UA for 8243 * them 8244 */ 8245 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8246 if (i == msg->pr.pr_info.residx || 8247 lun->pr_keys[i] == 0) 8248 continue; 8249 8250 if (!persis_offset 8251 && i < CTL_MAX_INITIATORS) 8252 lun->pending_ua[i] |= 8253 CTL_UA_REG_PREEMPT; 8254 else if (persis_offset && i >= persis_offset) 8255 lun->pending_ua[i - persis_offset] |= 8256 CTL_UA_REG_PREEMPT; 8257 lun->pr_keys[i] = 0; 8258 } 8259 8260 lun->pr_key_count = 1; 8261 lun->res_type = msg->pr.pr_info.res_type; 8262 if (lun->res_type != SPR_TYPE_WR_EX_AR 8263 && lun->res_type != SPR_TYPE_EX_AC_AR) 8264 lun->pr_res_idx = msg->pr.pr_info.residx; 8265 } else { 8266 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8267 if (sa_res_key == lun->pr_keys[i]) 8268 continue; 8269 8270 lun->pr_keys[i] = 0; 8271 lun->pr_key_count--; 8272 8273 if (!persis_offset 8274 && i < persis_offset) 8275 lun->pending_ua[i] |= 8276 CTL_UA_REG_PREEMPT; 8277 else if (persis_offset 8278 && i >= persis_offset) 8279 lun->pending_ua[i - persis_offset] |= 8280 CTL_UA_REG_PREEMPT; 8281 } 8282 } 8283 } else { 8284 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8285 if (i == msg->pr.pr_info.residx || 8286 lun->pr_keys[i] == 0) 8287 continue; 8288 8289 if (sa_res_key == lun->pr_keys[i]) { 8290 lun->pr_keys[i] = 0; 8291 lun->pr_key_count--; 8292 if (!persis_offset 8293 && i < CTL_MAX_INITIATORS) 8294 lun->pending_ua[i] |= 8295 CTL_UA_REG_PREEMPT; 8296 else if (persis_offset 8297 && i >= persis_offset) 8298 lun->pending_ua[i - persis_offset] |= 8299 CTL_UA_REG_PREEMPT; 8300 } else if (msg->pr.pr_info.res_type != lun->res_type 8301 && (lun->res_type == SPR_TYPE_WR_EX_RO 8302 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8303 if (!persis_offset 8304 && i < persis_offset) 8305 lun->pending_ua[i] |= 8306 CTL_UA_RES_RELEASE; 8307 else if (persis_offset 8308 && i >= persis_offset) 8309 lun->pending_ua[i - persis_offset] |= 8310 CTL_UA_RES_RELEASE; 8311 } 8312 } 8313 lun->res_type = msg->pr.pr_info.res_type; 8314 if (lun->res_type != SPR_TYPE_WR_EX_AR 8315 && lun->res_type != SPR_TYPE_EX_AC_AR) 8316 lun->pr_res_idx = msg->pr.pr_info.residx; 8317 else 8318 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8319 } 8320 lun->PRGeneration++; 8321 8322} 8323 8324 8325int 8326ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8327{ 8328 int retval; 8329 int isc_retval; 8330 u_int32_t param_len; 8331 struct scsi_per_res_out *cdb; 8332 struct ctl_lun *lun; 8333 struct scsi_per_res_out_parms* param; 8334 struct ctl_softc *softc; 8335 uint32_t residx; 8336 uint64_t res_key, sa_res_key; 8337 uint8_t type; 8338 union ctl_ha_msg persis_io; 8339 int i; 8340 8341 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8342 8343 retval = CTL_RETVAL_COMPLETE; 8344 8345 softc = control_softc; 8346 8347 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8348 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8349 8350 /* 8351 * We only support whole-LUN scope. The scope & type are ignored for 8352 * register, register and ignore existing key and clear. 8353 * We sometimes ignore scope and type on preempts too!! 8354 * Verify reservation type here as well. 8355 */ 8356 type = cdb->scope_type & SPR_TYPE_MASK; 8357 if ((cdb->action == SPRO_RESERVE) 8358 || (cdb->action == SPRO_RELEASE)) { 8359 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8360 ctl_set_invalid_field(/*ctsio*/ ctsio, 8361 /*sks_valid*/ 1, 8362 /*command*/ 1, 8363 /*field*/ 2, 8364 /*bit_valid*/ 1, 8365 /*bit*/ 4); 8366 ctl_done((union ctl_io *)ctsio); 8367 return (CTL_RETVAL_COMPLETE); 8368 } 8369 8370 if (type>8 || type==2 || type==4 || type==0) { 8371 ctl_set_invalid_field(/*ctsio*/ ctsio, 8372 /*sks_valid*/ 1, 8373 /*command*/ 1, 8374 /*field*/ 2, 8375 /*bit_valid*/ 1, 8376 /*bit*/ 0); 8377 ctl_done((union ctl_io *)ctsio); 8378 return (CTL_RETVAL_COMPLETE); 8379 } 8380 } 8381 8382 param_len = scsi_4btoul(cdb->length); 8383 8384 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8385 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8386 ctsio->kern_data_len = param_len; 8387 ctsio->kern_total_len = param_len; 8388 ctsio->kern_data_resid = 0; 8389 ctsio->kern_rel_offset = 0; 8390 ctsio->kern_sg_entries = 0; 8391 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8392 ctsio->be_move_done = ctl_config_move_done; 8393 ctl_datamove((union ctl_io *)ctsio); 8394 8395 return (CTL_RETVAL_COMPLETE); 8396 } 8397 8398 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8399 8400 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8401 res_key = scsi_8btou64(param->res_key.key); 8402 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8403 8404 /* 8405 * Validate the reservation key here except for SPRO_REG_IGNO 8406 * This must be done for all other service actions 8407 */ 8408 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8409 mtx_lock(&lun->lun_lock); 8410 if (lun->pr_keys[residx] != 0) { 8411 if (res_key != lun->pr_keys[residx]) { 8412 /* 8413 * The current key passed in doesn't match 8414 * the one the initiator previously 8415 * registered. 8416 */ 8417 mtx_unlock(&lun->lun_lock); 8418 free(ctsio->kern_data_ptr, M_CTL); 8419 ctl_set_reservation_conflict(ctsio); 8420 ctl_done((union ctl_io *)ctsio); 8421 return (CTL_RETVAL_COMPLETE); 8422 } 8423 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8424 /* 8425 * We are not registered 8426 */ 8427 mtx_unlock(&lun->lun_lock); 8428 free(ctsio->kern_data_ptr, M_CTL); 8429 ctl_set_reservation_conflict(ctsio); 8430 ctl_done((union ctl_io *)ctsio); 8431 return (CTL_RETVAL_COMPLETE); 8432 } else if (res_key != 0) { 8433 /* 8434 * We are not registered and trying to register but 8435 * the register key isn't zero. 8436 */ 8437 mtx_unlock(&lun->lun_lock); 8438 free(ctsio->kern_data_ptr, M_CTL); 8439 ctl_set_reservation_conflict(ctsio); 8440 ctl_done((union ctl_io *)ctsio); 8441 return (CTL_RETVAL_COMPLETE); 8442 } 8443 mtx_unlock(&lun->lun_lock); 8444 } 8445 8446 switch (cdb->action & SPRO_ACTION_MASK) { 8447 case SPRO_REGISTER: 8448 case SPRO_REG_IGNO: { 8449 8450#if 0 8451 printf("Registration received\n"); 8452#endif 8453 8454 /* 8455 * We don't support any of these options, as we report in 8456 * the read capabilities request (see 8457 * ctl_persistent_reserve_in(), above). 8458 */ 8459 if ((param->flags & SPR_SPEC_I_PT) 8460 || (param->flags & SPR_ALL_TG_PT) 8461 || (param->flags & SPR_APTPL)) { 8462 int bit_ptr; 8463 8464 if (param->flags & SPR_APTPL) 8465 bit_ptr = 0; 8466 else if (param->flags & SPR_ALL_TG_PT) 8467 bit_ptr = 2; 8468 else /* SPR_SPEC_I_PT */ 8469 bit_ptr = 3; 8470 8471 free(ctsio->kern_data_ptr, M_CTL); 8472 ctl_set_invalid_field(ctsio, 8473 /*sks_valid*/ 1, 8474 /*command*/ 0, 8475 /*field*/ 20, 8476 /*bit_valid*/ 1, 8477 /*bit*/ bit_ptr); 8478 ctl_done((union ctl_io *)ctsio); 8479 return (CTL_RETVAL_COMPLETE); 8480 } 8481 8482 mtx_lock(&lun->lun_lock); 8483 8484 /* 8485 * The initiator wants to clear the 8486 * key/unregister. 8487 */ 8488 if (sa_res_key == 0) { 8489 if ((res_key == 0 8490 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8491 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8492 && lun->pr_keys[residx] == 0)) { 8493 mtx_unlock(&lun->lun_lock); 8494 goto done; 8495 } 8496 8497 lun->pr_keys[residx] = 0; 8498 lun->pr_key_count--; 8499 8500 if (residx == lun->pr_res_idx) { 8501 lun->flags &= ~CTL_LUN_PR_RESERVED; 8502 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8503 8504 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8505 || lun->res_type == SPR_TYPE_EX_AC_RO) 8506 && lun->pr_key_count) { 8507 /* 8508 * If the reservation is a registrants 8509 * only type we need to generate a UA 8510 * for other registered inits. The 8511 * sense code should be RESERVATIONS 8512 * RELEASED 8513 */ 8514 8515 for (i = 0; i < CTL_MAX_INITIATORS;i++){ 8516 if (lun->pr_keys[ 8517 i + persis_offset] == 0) 8518 continue; 8519 lun->pending_ua[i] |= 8520 CTL_UA_RES_RELEASE; 8521 } 8522 } 8523 lun->res_type = 0; 8524 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8525 if (lun->pr_key_count==0) { 8526 lun->flags &= ~CTL_LUN_PR_RESERVED; 8527 lun->res_type = 0; 8528 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8529 } 8530 } 8531 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8532 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8533 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8534 persis_io.pr.pr_info.residx = residx; 8535 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8536 &persis_io, sizeof(persis_io), 0 )) > 8537 CTL_HA_STATUS_SUCCESS) { 8538 printf("CTL:Persis Out error returned from " 8539 "ctl_ha_msg_send %d\n", isc_retval); 8540 } 8541 } else /* sa_res_key != 0 */ { 8542 8543 /* 8544 * If we aren't registered currently then increment 8545 * the key count and set the registered flag. 8546 */ 8547 if (lun->pr_keys[residx] == 0) 8548 lun->pr_key_count++; 8549 lun->pr_keys[residx] = sa_res_key; 8550 8551 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8552 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8553 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8554 persis_io.pr.pr_info.residx = residx; 8555 memcpy(persis_io.pr.pr_info.sa_res_key, 8556 param->serv_act_res_key, 8557 sizeof(param->serv_act_res_key)); 8558 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8559 &persis_io, sizeof(persis_io), 0)) > 8560 CTL_HA_STATUS_SUCCESS) { 8561 printf("CTL:Persis Out error returned from " 8562 "ctl_ha_msg_send %d\n", isc_retval); 8563 } 8564 } 8565 lun->PRGeneration++; 8566 mtx_unlock(&lun->lun_lock); 8567 8568 break; 8569 } 8570 case SPRO_RESERVE: 8571#if 0 8572 printf("Reserve executed type %d\n", type); 8573#endif 8574 mtx_lock(&lun->lun_lock); 8575 if (lun->flags & CTL_LUN_PR_RESERVED) { 8576 /* 8577 * if this isn't the reservation holder and it's 8578 * not a "all registrants" type or if the type is 8579 * different then we have a conflict 8580 */ 8581 if ((lun->pr_res_idx != residx 8582 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8583 || lun->res_type != type) { 8584 mtx_unlock(&lun->lun_lock); 8585 free(ctsio->kern_data_ptr, M_CTL); 8586 ctl_set_reservation_conflict(ctsio); 8587 ctl_done((union ctl_io *)ctsio); 8588 return (CTL_RETVAL_COMPLETE); 8589 } 8590 mtx_unlock(&lun->lun_lock); 8591 } else /* create a reservation */ { 8592 /* 8593 * If it's not an "all registrants" type record 8594 * reservation holder 8595 */ 8596 if (type != SPR_TYPE_WR_EX_AR 8597 && type != SPR_TYPE_EX_AC_AR) 8598 lun->pr_res_idx = residx; /* Res holder */ 8599 else 8600 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8601 8602 lun->flags |= CTL_LUN_PR_RESERVED; 8603 lun->res_type = type; 8604 8605 mtx_unlock(&lun->lun_lock); 8606 8607 /* send msg to other side */ 8608 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8609 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8610 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8611 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8612 persis_io.pr.pr_info.res_type = type; 8613 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8614 &persis_io, sizeof(persis_io), 0)) > 8615 CTL_HA_STATUS_SUCCESS) { 8616 printf("CTL:Persis Out error returned from " 8617 "ctl_ha_msg_send %d\n", isc_retval); 8618 } 8619 } 8620 break; 8621 8622 case SPRO_RELEASE: 8623 mtx_lock(&lun->lun_lock); 8624 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8625 /* No reservation exists return good status */ 8626 mtx_unlock(&lun->lun_lock); 8627 goto done; 8628 } 8629 /* 8630 * Is this nexus a reservation holder? 8631 */ 8632 if (lun->pr_res_idx != residx 8633 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8634 /* 8635 * not a res holder return good status but 8636 * do nothing 8637 */ 8638 mtx_unlock(&lun->lun_lock); 8639 goto done; 8640 } 8641 8642 if (lun->res_type != type) { 8643 mtx_unlock(&lun->lun_lock); 8644 free(ctsio->kern_data_ptr, M_CTL); 8645 ctl_set_illegal_pr_release(ctsio); 8646 ctl_done((union ctl_io *)ctsio); 8647 return (CTL_RETVAL_COMPLETE); 8648 } 8649 8650 /* okay to release */ 8651 lun->flags &= ~CTL_LUN_PR_RESERVED; 8652 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8653 lun->res_type = 0; 8654 8655 /* 8656 * if this isn't an exclusive access 8657 * res generate UA for all other 8658 * registrants. 8659 */ 8660 if (type != SPR_TYPE_EX_AC 8661 && type != SPR_TYPE_WR_EX) { 8662 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8663 if (i == residx || 8664 lun->pr_keys[i + persis_offset] == 0) 8665 continue; 8666 lun->pending_ua[i] |= CTL_UA_RES_RELEASE; 8667 } 8668 } 8669 mtx_unlock(&lun->lun_lock); 8670 /* Send msg to other side */ 8671 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8672 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8673 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8674 if ((isc_retval=ctl_ha_msg_send( CTL_HA_CHAN_CTL, &persis_io, 8675 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8676 printf("CTL:Persis Out error returned from " 8677 "ctl_ha_msg_send %d\n", isc_retval); 8678 } 8679 break; 8680 8681 case SPRO_CLEAR: 8682 /* send msg to other side */ 8683 8684 mtx_lock(&lun->lun_lock); 8685 lun->flags &= ~CTL_LUN_PR_RESERVED; 8686 lun->res_type = 0; 8687 lun->pr_key_count = 0; 8688 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8689 8690 lun->pr_keys[residx] = 0; 8691 8692 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) 8693 if (lun->pr_keys[i] != 0) { 8694 if (!persis_offset && i < CTL_MAX_INITIATORS) 8695 lun->pending_ua[i] |= 8696 CTL_UA_RES_PREEMPT; 8697 else if (persis_offset && i >= persis_offset) 8698 lun->pending_ua[i-persis_offset] |= 8699 CTL_UA_RES_PREEMPT; 8700 8701 lun->pr_keys[i] = 0; 8702 } 8703 lun->PRGeneration++; 8704 mtx_unlock(&lun->lun_lock); 8705 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8706 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8707 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8708 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8709 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8710 printf("CTL:Persis Out error returned from " 8711 "ctl_ha_msg_send %d\n", isc_retval); 8712 } 8713 break; 8714 8715 case SPRO_PREEMPT: 8716 case SPRO_PRE_ABO: { 8717 int nretval; 8718 8719 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8720 residx, ctsio, cdb, param); 8721 if (nretval != 0) 8722 return (CTL_RETVAL_COMPLETE); 8723 break; 8724 } 8725 default: 8726 panic("Invalid PR type %x", cdb->action); 8727 } 8728 8729done: 8730 free(ctsio->kern_data_ptr, M_CTL); 8731 ctl_set_success(ctsio); 8732 ctl_done((union ctl_io *)ctsio); 8733 8734 return (retval); 8735} 8736 8737/* 8738 * This routine is for handling a message from the other SC pertaining to 8739 * persistent reserve out. All the error checking will have been done 8740 * so only perorming the action need be done here to keep the two 8741 * in sync. 8742 */ 8743static void 8744ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8745{ 8746 struct ctl_lun *lun; 8747 struct ctl_softc *softc; 8748 int i; 8749 uint32_t targ_lun; 8750 8751 softc = control_softc; 8752 8753 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8754 lun = softc->ctl_luns[targ_lun]; 8755 mtx_lock(&lun->lun_lock); 8756 switch(msg->pr.pr_info.action) { 8757 case CTL_PR_REG_KEY: 8758 if (lun->pr_keys[msg->pr.pr_info.residx] == 0) 8759 lun->pr_key_count++; 8760 lun->pr_keys[msg->pr.pr_info.residx] = 8761 scsi_8btou64(msg->pr.pr_info.sa_res_key); 8762 lun->PRGeneration++; 8763 break; 8764 8765 case CTL_PR_UNREG_KEY: 8766 lun->pr_keys[msg->pr.pr_info.residx] = 0; 8767 lun->pr_key_count--; 8768 8769 /* XXX Need to see if the reservation has been released */ 8770 /* if so do we need to generate UA? */ 8771 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8772 lun->flags &= ~CTL_LUN_PR_RESERVED; 8773 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8774 8775 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8776 || lun->res_type == SPR_TYPE_EX_AC_RO) 8777 && lun->pr_key_count) { 8778 /* 8779 * If the reservation is a registrants 8780 * only type we need to generate a UA 8781 * for other registered inits. The 8782 * sense code should be RESERVATIONS 8783 * RELEASED 8784 */ 8785 8786 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8787 if (lun->pr_keys[i+ 8788 persis_offset] == 0) 8789 continue; 8790 8791 lun->pending_ua[i] |= 8792 CTL_UA_RES_RELEASE; 8793 } 8794 } 8795 lun->res_type = 0; 8796 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8797 if (lun->pr_key_count==0) { 8798 lun->flags &= ~CTL_LUN_PR_RESERVED; 8799 lun->res_type = 0; 8800 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8801 } 8802 } 8803 lun->PRGeneration++; 8804 break; 8805 8806 case CTL_PR_RESERVE: 8807 lun->flags |= CTL_LUN_PR_RESERVED; 8808 lun->res_type = msg->pr.pr_info.res_type; 8809 lun->pr_res_idx = msg->pr.pr_info.residx; 8810 8811 break; 8812 8813 case CTL_PR_RELEASE: 8814 /* 8815 * if this isn't an exclusive access res generate UA for all 8816 * other registrants. 8817 */ 8818 if (lun->res_type != SPR_TYPE_EX_AC 8819 && lun->res_type != SPR_TYPE_WR_EX) { 8820 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8821 if (lun->pr_keys[i+persis_offset] != 0) 8822 lun->pending_ua[i] |= 8823 CTL_UA_RES_RELEASE; 8824 } 8825 8826 lun->flags &= ~CTL_LUN_PR_RESERVED; 8827 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8828 lun->res_type = 0; 8829 break; 8830 8831 case CTL_PR_PREEMPT: 8832 ctl_pro_preempt_other(lun, msg); 8833 break; 8834 case CTL_PR_CLEAR: 8835 lun->flags &= ~CTL_LUN_PR_RESERVED; 8836 lun->res_type = 0; 8837 lun->pr_key_count = 0; 8838 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8839 8840 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8841 if (lun->pr_keys[i] == 0) 8842 continue; 8843 if (!persis_offset 8844 && i < CTL_MAX_INITIATORS) 8845 lun->pending_ua[i] |= CTL_UA_RES_PREEMPT; 8846 else if (persis_offset 8847 && i >= persis_offset) 8848 lun->pending_ua[i-persis_offset] |= 8849 CTL_UA_RES_PREEMPT; 8850 lun->pr_keys[i] = 0; 8851 } 8852 lun->PRGeneration++; 8853 break; 8854 } 8855 8856 mtx_unlock(&lun->lun_lock); 8857} 8858 8859int 8860ctl_read_write(struct ctl_scsiio *ctsio) 8861{ 8862 struct ctl_lun *lun; 8863 struct ctl_lba_len_flags *lbalen; 8864 uint64_t lba; 8865 uint32_t num_blocks; 8866 int flags, retval; 8867 int isread; 8868 8869 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8870 8871 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8872 8873 flags = 0; 8874 retval = CTL_RETVAL_COMPLETE; 8875 8876 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8877 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8878 switch (ctsio->cdb[0]) { 8879 case READ_6: 8880 case WRITE_6: { 8881 struct scsi_rw_6 *cdb; 8882 8883 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8884 8885 lba = scsi_3btoul(cdb->addr); 8886 /* only 5 bits are valid in the most significant address byte */ 8887 lba &= 0x1fffff; 8888 num_blocks = cdb->length; 8889 /* 8890 * This is correct according to SBC-2. 8891 */ 8892 if (num_blocks == 0) 8893 num_blocks = 256; 8894 break; 8895 } 8896 case READ_10: 8897 case WRITE_10: { 8898 struct scsi_rw_10 *cdb; 8899 8900 cdb = (struct scsi_rw_10 *)ctsio->cdb; 8901 if (cdb->byte2 & SRW10_FUA) 8902 flags |= CTL_LLF_FUA; 8903 if (cdb->byte2 & SRW10_DPO) 8904 flags |= CTL_LLF_DPO; 8905 lba = scsi_4btoul(cdb->addr); 8906 num_blocks = scsi_2btoul(cdb->length); 8907 break; 8908 } 8909 case WRITE_VERIFY_10: { 8910 struct scsi_write_verify_10 *cdb; 8911 8912 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 8913 flags |= CTL_LLF_FUA; 8914 if (cdb->byte2 & SWV_DPO) 8915 flags |= CTL_LLF_DPO; 8916 lba = scsi_4btoul(cdb->addr); 8917 num_blocks = scsi_2btoul(cdb->length); 8918 break; 8919 } 8920 case READ_12: 8921 case WRITE_12: { 8922 struct scsi_rw_12 *cdb; 8923 8924 cdb = (struct scsi_rw_12 *)ctsio->cdb; 8925 if (cdb->byte2 & SRW12_FUA) 8926 flags |= CTL_LLF_FUA; 8927 if (cdb->byte2 & SRW12_DPO) 8928 flags |= CTL_LLF_DPO; 8929 lba = scsi_4btoul(cdb->addr); 8930 num_blocks = scsi_4btoul(cdb->length); 8931 break; 8932 } 8933 case WRITE_VERIFY_12: { 8934 struct scsi_write_verify_12 *cdb; 8935 8936 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 8937 flags |= CTL_LLF_FUA; 8938 if (cdb->byte2 & SWV_DPO) 8939 flags |= CTL_LLF_DPO; 8940 lba = scsi_4btoul(cdb->addr); 8941 num_blocks = scsi_4btoul(cdb->length); 8942 break; 8943 } 8944 case READ_16: 8945 case WRITE_16: { 8946 struct scsi_rw_16 *cdb; 8947 8948 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8949 if (cdb->byte2 & SRW12_FUA) 8950 flags |= CTL_LLF_FUA; 8951 if (cdb->byte2 & SRW12_DPO) 8952 flags |= CTL_LLF_DPO; 8953 lba = scsi_8btou64(cdb->addr); 8954 num_blocks = scsi_4btoul(cdb->length); 8955 break; 8956 } 8957 case WRITE_ATOMIC_16: { 8958 struct scsi_rw_16 *cdb; 8959 8960 if (lun->be_lun->atomicblock == 0) { 8961 ctl_set_invalid_opcode(ctsio); 8962 ctl_done((union ctl_io *)ctsio); 8963 return (CTL_RETVAL_COMPLETE); 8964 } 8965 8966 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8967 if (cdb->byte2 & SRW12_FUA) 8968 flags |= CTL_LLF_FUA; 8969 if (cdb->byte2 & SRW12_DPO) 8970 flags |= CTL_LLF_DPO; 8971 lba = scsi_8btou64(cdb->addr); 8972 num_blocks = scsi_4btoul(cdb->length); 8973 if (num_blocks > lun->be_lun->atomicblock) { 8974 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 8975 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 8976 /*bit*/ 0); 8977 ctl_done((union ctl_io *)ctsio); 8978 return (CTL_RETVAL_COMPLETE); 8979 } 8980 break; 8981 } 8982 case WRITE_VERIFY_16: { 8983 struct scsi_write_verify_16 *cdb; 8984 8985 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 8986 flags |= CTL_LLF_FUA; 8987 if (cdb->byte2 & SWV_DPO) 8988 flags |= CTL_LLF_DPO; 8989 lba = scsi_8btou64(cdb->addr); 8990 num_blocks = scsi_4btoul(cdb->length); 8991 break; 8992 } 8993 default: 8994 /* 8995 * We got a command we don't support. This shouldn't 8996 * happen, commands should be filtered out above us. 8997 */ 8998 ctl_set_invalid_opcode(ctsio); 8999 ctl_done((union ctl_io *)ctsio); 9000 9001 return (CTL_RETVAL_COMPLETE); 9002 break; /* NOTREACHED */ 9003 } 9004 9005 /* 9006 * The first check is to make sure we're in bounds, the second 9007 * check is to catch wrap-around problems. If the lba + num blocks 9008 * is less than the lba, then we've wrapped around and the block 9009 * range is invalid anyway. 9010 */ 9011 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9012 || ((lba + num_blocks) < lba)) { 9013 ctl_set_lba_out_of_range(ctsio); 9014 ctl_done((union ctl_io *)ctsio); 9015 return (CTL_RETVAL_COMPLETE); 9016 } 9017 9018 /* 9019 * According to SBC-3, a transfer length of 0 is not an error. 9020 * Note that this cannot happen with WRITE(6) or READ(6), since 0 9021 * translates to 256 blocks for those commands. 9022 */ 9023 if (num_blocks == 0) { 9024 ctl_set_success(ctsio); 9025 ctl_done((union ctl_io *)ctsio); 9026 return (CTL_RETVAL_COMPLETE); 9027 } 9028 9029 /* Set FUA and/or DPO if caches are disabled. */ 9030 if (isread) { 9031 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9032 SCP_RCD) != 0) 9033 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 9034 } else { 9035 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9036 SCP_WCE) == 0) 9037 flags |= CTL_LLF_FUA; 9038 } 9039 9040 lbalen = (struct ctl_lba_len_flags *) 9041 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9042 lbalen->lba = lba; 9043 lbalen->len = num_blocks; 9044 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 9045 9046 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9047 ctsio->kern_rel_offset = 0; 9048 9049 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 9050 9051 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9052 9053 return (retval); 9054} 9055 9056static int 9057ctl_cnw_cont(union ctl_io *io) 9058{ 9059 struct ctl_scsiio *ctsio; 9060 struct ctl_lun *lun; 9061 struct ctl_lba_len_flags *lbalen; 9062 int retval; 9063 9064 ctsio = &io->scsiio; 9065 ctsio->io_hdr.status = CTL_STATUS_NONE; 9066 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 9067 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9068 lbalen = (struct ctl_lba_len_flags *) 9069 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9070 lbalen->flags &= ~CTL_LLF_COMPARE; 9071 lbalen->flags |= CTL_LLF_WRITE; 9072 9073 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 9074 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9075 return (retval); 9076} 9077 9078int 9079ctl_cnw(struct ctl_scsiio *ctsio) 9080{ 9081 struct ctl_lun *lun; 9082 struct ctl_lba_len_flags *lbalen; 9083 uint64_t lba; 9084 uint32_t num_blocks; 9085 int flags, retval; 9086 9087 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9088 9089 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 9090 9091 flags = 0; 9092 retval = CTL_RETVAL_COMPLETE; 9093 9094 switch (ctsio->cdb[0]) { 9095 case COMPARE_AND_WRITE: { 9096 struct scsi_compare_and_write *cdb; 9097 9098 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 9099 if (cdb->byte2 & SRW10_FUA) 9100 flags |= CTL_LLF_FUA; 9101 if (cdb->byte2 & SRW10_DPO) 9102 flags |= CTL_LLF_DPO; 9103 lba = scsi_8btou64(cdb->addr); 9104 num_blocks = cdb->length; 9105 break; 9106 } 9107 default: 9108 /* 9109 * We got a command we don't support. This shouldn't 9110 * happen, commands should be filtered out above us. 9111 */ 9112 ctl_set_invalid_opcode(ctsio); 9113 ctl_done((union ctl_io *)ctsio); 9114 9115 return (CTL_RETVAL_COMPLETE); 9116 break; /* NOTREACHED */ 9117 } 9118 9119 /* 9120 * The first check is to make sure we're in bounds, the second 9121 * check is to catch wrap-around problems. If the lba + num blocks 9122 * is less than the lba, then we've wrapped around and the block 9123 * range is invalid anyway. 9124 */ 9125 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9126 || ((lba + num_blocks) < lba)) { 9127 ctl_set_lba_out_of_range(ctsio); 9128 ctl_done((union ctl_io *)ctsio); 9129 return (CTL_RETVAL_COMPLETE); 9130 } 9131 9132 /* 9133 * According to SBC-3, a transfer length of 0 is not an error. 9134 */ 9135 if (num_blocks == 0) { 9136 ctl_set_success(ctsio); 9137 ctl_done((union ctl_io *)ctsio); 9138 return (CTL_RETVAL_COMPLETE); 9139 } 9140 9141 /* Set FUA if write cache is disabled. */ 9142 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9143 SCP_WCE) == 0) 9144 flags |= CTL_LLF_FUA; 9145 9146 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 9147 ctsio->kern_rel_offset = 0; 9148 9149 /* 9150 * Set the IO_CONT flag, so that if this I/O gets passed to 9151 * ctl_data_submit_done(), it'll get passed back to 9152 * ctl_ctl_cnw_cont() for further processing. 9153 */ 9154 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 9155 ctsio->io_cont = ctl_cnw_cont; 9156 9157 lbalen = (struct ctl_lba_len_flags *) 9158 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9159 lbalen->lba = lba; 9160 lbalen->len = num_blocks; 9161 lbalen->flags = CTL_LLF_COMPARE | flags; 9162 9163 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 9164 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9165 return (retval); 9166} 9167 9168int 9169ctl_verify(struct ctl_scsiio *ctsio) 9170{ 9171 struct ctl_lun *lun; 9172 struct ctl_lba_len_flags *lbalen; 9173 uint64_t lba; 9174 uint32_t num_blocks; 9175 int bytchk, flags; 9176 int retval; 9177 9178 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9179 9180 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 9181 9182 bytchk = 0; 9183 flags = CTL_LLF_FUA; 9184 retval = CTL_RETVAL_COMPLETE; 9185 9186 switch (ctsio->cdb[0]) { 9187 case VERIFY_10: { 9188 struct scsi_verify_10 *cdb; 9189 9190 cdb = (struct scsi_verify_10 *)ctsio->cdb; 9191 if (cdb->byte2 & SVFY_BYTCHK) 9192 bytchk = 1; 9193 if (cdb->byte2 & SVFY_DPO) 9194 flags |= CTL_LLF_DPO; 9195 lba = scsi_4btoul(cdb->addr); 9196 num_blocks = scsi_2btoul(cdb->length); 9197 break; 9198 } 9199 case VERIFY_12: { 9200 struct scsi_verify_12 *cdb; 9201 9202 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9203 if (cdb->byte2 & SVFY_BYTCHK) 9204 bytchk = 1; 9205 if (cdb->byte2 & SVFY_DPO) 9206 flags |= CTL_LLF_DPO; 9207 lba = scsi_4btoul(cdb->addr); 9208 num_blocks = scsi_4btoul(cdb->length); 9209 break; 9210 } 9211 case VERIFY_16: { 9212 struct scsi_rw_16 *cdb; 9213 9214 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9215 if (cdb->byte2 & SVFY_BYTCHK) 9216 bytchk = 1; 9217 if (cdb->byte2 & SVFY_DPO) 9218 flags |= CTL_LLF_DPO; 9219 lba = scsi_8btou64(cdb->addr); 9220 num_blocks = scsi_4btoul(cdb->length); 9221 break; 9222 } 9223 default: 9224 /* 9225 * We got a command we don't support. This shouldn't 9226 * happen, commands should be filtered out above us. 9227 */ 9228 ctl_set_invalid_opcode(ctsio); 9229 ctl_done((union ctl_io *)ctsio); 9230 return (CTL_RETVAL_COMPLETE); 9231 } 9232 9233 /* 9234 * The first check is to make sure we're in bounds, the second 9235 * check is to catch wrap-around problems. If the lba + num blocks 9236 * is less than the lba, then we've wrapped around and the block 9237 * range is invalid anyway. 9238 */ 9239 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9240 || ((lba + num_blocks) < lba)) { 9241 ctl_set_lba_out_of_range(ctsio); 9242 ctl_done((union ctl_io *)ctsio); 9243 return (CTL_RETVAL_COMPLETE); 9244 } 9245 9246 /* 9247 * According to SBC-3, a transfer length of 0 is not an error. 9248 */ 9249 if (num_blocks == 0) { 9250 ctl_set_success(ctsio); 9251 ctl_done((union ctl_io *)ctsio); 9252 return (CTL_RETVAL_COMPLETE); 9253 } 9254 9255 lbalen = (struct ctl_lba_len_flags *) 9256 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9257 lbalen->lba = lba; 9258 lbalen->len = num_blocks; 9259 if (bytchk) { 9260 lbalen->flags = CTL_LLF_COMPARE | flags; 9261 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9262 } else { 9263 lbalen->flags = CTL_LLF_VERIFY | flags; 9264 ctsio->kern_total_len = 0; 9265 } 9266 ctsio->kern_rel_offset = 0; 9267 9268 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9269 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9270 return (retval); 9271} 9272 9273int 9274ctl_report_luns(struct ctl_scsiio *ctsio) 9275{ 9276 struct scsi_report_luns *cdb; 9277 struct scsi_report_luns_data *lun_data; 9278 struct ctl_lun *lun, *request_lun; 9279 int num_luns, retval; 9280 uint32_t alloc_len, lun_datalen; 9281 int num_filled, well_known; 9282 uint32_t initidx, targ_lun_id, lun_id; 9283 9284 retval = CTL_RETVAL_COMPLETE; 9285 well_known = 0; 9286 9287 cdb = (struct scsi_report_luns *)ctsio->cdb; 9288 9289 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9290 9291 mtx_lock(&control_softc->ctl_lock); 9292 num_luns = control_softc->num_luns; 9293 mtx_unlock(&control_softc->ctl_lock); 9294 9295 switch (cdb->select_report) { 9296 case RPL_REPORT_DEFAULT: 9297 case RPL_REPORT_ALL: 9298 break; 9299 case RPL_REPORT_WELLKNOWN: 9300 well_known = 1; 9301 num_luns = 0; 9302 break; 9303 default: 9304 ctl_set_invalid_field(ctsio, 9305 /*sks_valid*/ 1, 9306 /*command*/ 1, 9307 /*field*/ 2, 9308 /*bit_valid*/ 0, 9309 /*bit*/ 0); 9310 ctl_done((union ctl_io *)ctsio); 9311 return (retval); 9312 break; /* NOTREACHED */ 9313 } 9314 9315 alloc_len = scsi_4btoul(cdb->length); 9316 /* 9317 * The initiator has to allocate at least 16 bytes for this request, 9318 * so he can at least get the header and the first LUN. Otherwise 9319 * we reject the request (per SPC-3 rev 14, section 6.21). 9320 */ 9321 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9322 sizeof(struct scsi_report_luns_lundata))) { 9323 ctl_set_invalid_field(ctsio, 9324 /*sks_valid*/ 1, 9325 /*command*/ 1, 9326 /*field*/ 6, 9327 /*bit_valid*/ 0, 9328 /*bit*/ 0); 9329 ctl_done((union ctl_io *)ctsio); 9330 return (retval); 9331 } 9332 9333 request_lun = (struct ctl_lun *) 9334 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9335 9336 lun_datalen = sizeof(*lun_data) + 9337 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9338 9339 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9340 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9341 ctsio->kern_sg_entries = 0; 9342 9343 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9344 9345 mtx_lock(&control_softc->ctl_lock); 9346 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9347 lun_id = ctl_map_lun(ctsio->io_hdr.nexus.targ_port, targ_lun_id); 9348 if (lun_id >= CTL_MAX_LUNS) 9349 continue; 9350 lun = control_softc->ctl_luns[lun_id]; 9351 if (lun == NULL) 9352 continue; 9353 9354 if (targ_lun_id <= 0xff) { 9355 /* 9356 * Peripheral addressing method, bus number 0. 9357 */ 9358 lun_data->luns[num_filled].lundata[0] = 9359 RPL_LUNDATA_ATYP_PERIPH; 9360 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9361 num_filled++; 9362 } else if (targ_lun_id <= 0x3fff) { 9363 /* 9364 * Flat addressing method. 9365 */ 9366 lun_data->luns[num_filled].lundata[0] = 9367 RPL_LUNDATA_ATYP_FLAT | (targ_lun_id >> 8); 9368 lun_data->luns[num_filled].lundata[1] = 9369 (targ_lun_id & 0xff); 9370 num_filled++; 9371 } else if (targ_lun_id <= 0xffffff) { 9372 /* 9373 * Extended flat addressing method. 9374 */ 9375 lun_data->luns[num_filled].lundata[0] = 9376 RPL_LUNDATA_ATYP_EXTLUN | 0x12; 9377 scsi_ulto3b(targ_lun_id, 9378 &lun_data->luns[num_filled].lundata[1]); 9379 num_filled++; 9380 } else { 9381 printf("ctl_report_luns: bogus LUN number %jd, " 9382 "skipping\n", (intmax_t)targ_lun_id); 9383 } 9384 /* 9385 * According to SPC-3, rev 14 section 6.21: 9386 * 9387 * "The execution of a REPORT LUNS command to any valid and 9388 * installed logical unit shall clear the REPORTED LUNS DATA 9389 * HAS CHANGED unit attention condition for all logical 9390 * units of that target with respect to the requesting 9391 * initiator. A valid and installed logical unit is one 9392 * having a PERIPHERAL QUALIFIER of 000b in the standard 9393 * INQUIRY data (see 6.4.2)." 9394 * 9395 * If request_lun is NULL, the LUN this report luns command 9396 * was issued to is either disabled or doesn't exist. In that 9397 * case, we shouldn't clear any pending lun change unit 9398 * attention. 9399 */ 9400 if (request_lun != NULL) { 9401 mtx_lock(&lun->lun_lock); 9402 lun->pending_ua[initidx] &= ~CTL_UA_LUN_CHANGE; 9403 mtx_unlock(&lun->lun_lock); 9404 } 9405 } 9406 mtx_unlock(&control_softc->ctl_lock); 9407 9408 /* 9409 * It's quite possible that we've returned fewer LUNs than we allocated 9410 * space for. Trim it. 9411 */ 9412 lun_datalen = sizeof(*lun_data) + 9413 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9414 9415 if (lun_datalen < alloc_len) { 9416 ctsio->residual = alloc_len - lun_datalen; 9417 ctsio->kern_data_len = lun_datalen; 9418 ctsio->kern_total_len = lun_datalen; 9419 } else { 9420 ctsio->residual = 0; 9421 ctsio->kern_data_len = alloc_len; 9422 ctsio->kern_total_len = alloc_len; 9423 } 9424 ctsio->kern_data_resid = 0; 9425 ctsio->kern_rel_offset = 0; 9426 ctsio->kern_sg_entries = 0; 9427 9428 /* 9429 * We set this to the actual data length, regardless of how much 9430 * space we actually have to return results. If the user looks at 9431 * this value, he'll know whether or not he allocated enough space 9432 * and reissue the command if necessary. We don't support well 9433 * known logical units, so if the user asks for that, return none. 9434 */ 9435 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9436 9437 /* 9438 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9439 * this request. 9440 */ 9441 ctsio->scsi_status = SCSI_STATUS_OK; 9442 9443 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9444 ctsio->be_move_done = ctl_config_move_done; 9445 ctl_datamove((union ctl_io *)ctsio); 9446 9447 return (retval); 9448} 9449 9450int 9451ctl_request_sense(struct ctl_scsiio *ctsio) 9452{ 9453 struct scsi_request_sense *cdb; 9454 struct scsi_sense_data *sense_ptr; 9455 struct ctl_lun *lun; 9456 uint32_t initidx; 9457 int have_error; 9458 scsi_sense_data_type sense_format; 9459 9460 cdb = (struct scsi_request_sense *)ctsio->cdb; 9461 9462 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9463 9464 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9465 9466 /* 9467 * Determine which sense format the user wants. 9468 */ 9469 if (cdb->byte2 & SRS_DESC) 9470 sense_format = SSD_TYPE_DESC; 9471 else 9472 sense_format = SSD_TYPE_FIXED; 9473 9474 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9475 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9476 ctsio->kern_sg_entries = 0; 9477 9478 /* 9479 * struct scsi_sense_data, which is currently set to 256 bytes, is 9480 * larger than the largest allowed value for the length field in the 9481 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9482 */ 9483 ctsio->residual = 0; 9484 ctsio->kern_data_len = cdb->length; 9485 ctsio->kern_total_len = cdb->length; 9486 9487 ctsio->kern_data_resid = 0; 9488 ctsio->kern_rel_offset = 0; 9489 ctsio->kern_sg_entries = 0; 9490 9491 /* 9492 * If we don't have a LUN, we don't have any pending sense. 9493 */ 9494 if (lun == NULL) 9495 goto no_sense; 9496 9497 have_error = 0; 9498 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9499 /* 9500 * Check for pending sense, and then for pending unit attentions. 9501 * Pending sense gets returned first, then pending unit attentions. 9502 */ 9503 mtx_lock(&lun->lun_lock); 9504#ifdef CTL_WITH_CA 9505 if (ctl_is_set(lun->have_ca, initidx)) { 9506 scsi_sense_data_type stored_format; 9507 9508 /* 9509 * Check to see which sense format was used for the stored 9510 * sense data. 9511 */ 9512 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9513 9514 /* 9515 * If the user requested a different sense format than the 9516 * one we stored, then we need to convert it to the other 9517 * format. If we're going from descriptor to fixed format 9518 * sense data, we may lose things in translation, depending 9519 * on what options were used. 9520 * 9521 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9522 * for some reason we'll just copy it out as-is. 9523 */ 9524 if ((stored_format == SSD_TYPE_FIXED) 9525 && (sense_format == SSD_TYPE_DESC)) 9526 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9527 &lun->pending_sense[initidx], 9528 (struct scsi_sense_data_desc *)sense_ptr); 9529 else if ((stored_format == SSD_TYPE_DESC) 9530 && (sense_format == SSD_TYPE_FIXED)) 9531 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9532 &lun->pending_sense[initidx], 9533 (struct scsi_sense_data_fixed *)sense_ptr); 9534 else 9535 memcpy(sense_ptr, &lun->pending_sense[initidx], 9536 ctl_min(sizeof(*sense_ptr), 9537 sizeof(lun->pending_sense[initidx]))); 9538 9539 ctl_clear_mask(lun->have_ca, initidx); 9540 have_error = 1; 9541 } else 9542#endif 9543 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 9544 ctl_ua_type ua_type; 9545 9546 ua_type = ctl_build_ua(&lun->pending_ua[initidx], 9547 sense_ptr, sense_format); 9548 if (ua_type != CTL_UA_NONE) 9549 have_error = 1; 9550 } 9551 mtx_unlock(&lun->lun_lock); 9552 9553 /* 9554 * We already have a pending error, return it. 9555 */ 9556 if (have_error != 0) { 9557 /* 9558 * We report the SCSI status as OK, since the status of the 9559 * request sense command itself is OK. 9560 */ 9561 ctsio->scsi_status = SCSI_STATUS_OK; 9562 9563 /* 9564 * We report 0 for the sense length, because we aren't doing 9565 * autosense in this case. We're reporting sense as 9566 * parameter data. 9567 */ 9568 ctsio->sense_len = 0; 9569 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9570 ctsio->be_move_done = ctl_config_move_done; 9571 ctl_datamove((union ctl_io *)ctsio); 9572 9573 return (CTL_RETVAL_COMPLETE); 9574 } 9575 9576no_sense: 9577 9578 /* 9579 * No sense information to report, so we report that everything is 9580 * okay. 9581 */ 9582 ctl_set_sense_data(sense_ptr, 9583 lun, 9584 sense_format, 9585 /*current_error*/ 1, 9586 /*sense_key*/ SSD_KEY_NO_SENSE, 9587 /*asc*/ 0x00, 9588 /*ascq*/ 0x00, 9589 SSD_ELEM_NONE); 9590 9591 ctsio->scsi_status = SCSI_STATUS_OK; 9592 9593 /* 9594 * We report 0 for the sense length, because we aren't doing 9595 * autosense in this case. We're reporting sense as parameter data. 9596 */ 9597 ctsio->sense_len = 0; 9598 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9599 ctsio->be_move_done = ctl_config_move_done; 9600 ctl_datamove((union ctl_io *)ctsio); 9601 9602 return (CTL_RETVAL_COMPLETE); 9603} 9604 9605int 9606ctl_tur(struct ctl_scsiio *ctsio) 9607{ 9608 9609 CTL_DEBUG_PRINT(("ctl_tur\n")); 9610 9611 ctsio->scsi_status = SCSI_STATUS_OK; 9612 ctsio->io_hdr.status = CTL_SUCCESS; 9613 9614 ctl_done((union ctl_io *)ctsio); 9615 9616 return (CTL_RETVAL_COMPLETE); 9617} 9618 9619#ifdef notyet 9620static int 9621ctl_cmddt_inquiry(struct ctl_scsiio *ctsio) 9622{ 9623 9624} 9625#endif 9626 9627static int 9628ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9629{ 9630 struct scsi_vpd_supported_pages *pages; 9631 int sup_page_size; 9632 struct ctl_lun *lun; 9633 9634 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9635 9636 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9637 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9638 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9639 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9640 ctsio->kern_sg_entries = 0; 9641 9642 if (sup_page_size < alloc_len) { 9643 ctsio->residual = alloc_len - sup_page_size; 9644 ctsio->kern_data_len = sup_page_size; 9645 ctsio->kern_total_len = sup_page_size; 9646 } else { 9647 ctsio->residual = 0; 9648 ctsio->kern_data_len = alloc_len; 9649 ctsio->kern_total_len = alloc_len; 9650 } 9651 ctsio->kern_data_resid = 0; 9652 ctsio->kern_rel_offset = 0; 9653 ctsio->kern_sg_entries = 0; 9654 9655 /* 9656 * The control device is always connected. The disk device, on the 9657 * other hand, may not be online all the time. Need to change this 9658 * to figure out whether the disk device is actually online or not. 9659 */ 9660 if (lun != NULL) 9661 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9662 lun->be_lun->lun_type; 9663 else 9664 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9665 9666 pages->length = SCSI_EVPD_NUM_SUPPORTED_PAGES; 9667 /* Supported VPD pages */ 9668 pages->page_list[0] = SVPD_SUPPORTED_PAGES; 9669 /* Serial Number */ 9670 pages->page_list[1] = SVPD_UNIT_SERIAL_NUMBER; 9671 /* Device Identification */ 9672 pages->page_list[2] = SVPD_DEVICE_ID; 9673 /* Extended INQUIRY Data */ 9674 pages->page_list[3] = SVPD_EXTENDED_INQUIRY_DATA; 9675 /* Mode Page Policy */ 9676 pages->page_list[4] = SVPD_MODE_PAGE_POLICY; 9677 /* SCSI Ports */ 9678 pages->page_list[5] = SVPD_SCSI_PORTS; 9679 /* Third-party Copy */ 9680 pages->page_list[6] = SVPD_SCSI_TPC; 9681 /* Block limits */ 9682 pages->page_list[7] = SVPD_BLOCK_LIMITS; 9683 /* Block Device Characteristics */ 9684 pages->page_list[8] = SVPD_BDC; 9685 /* Logical Block Provisioning */ 9686 pages->page_list[9] = SVPD_LBP; 9687 9688 ctsio->scsi_status = SCSI_STATUS_OK; 9689 9690 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9691 ctsio->be_move_done = ctl_config_move_done; 9692 ctl_datamove((union ctl_io *)ctsio); 9693 9694 return (CTL_RETVAL_COMPLETE); 9695} 9696 9697static int 9698ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9699{ 9700 struct scsi_vpd_unit_serial_number *sn_ptr; 9701 struct ctl_lun *lun; 9702 int data_len; 9703 9704 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9705 9706 data_len = 4 + CTL_SN_LEN; 9707 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9708 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9709 if (data_len < alloc_len) { 9710 ctsio->residual = alloc_len - data_len; 9711 ctsio->kern_data_len = data_len; 9712 ctsio->kern_total_len = data_len; 9713 } else { 9714 ctsio->residual = 0; 9715 ctsio->kern_data_len = alloc_len; 9716 ctsio->kern_total_len = alloc_len; 9717 } 9718 ctsio->kern_data_resid = 0; 9719 ctsio->kern_rel_offset = 0; 9720 ctsio->kern_sg_entries = 0; 9721 9722 /* 9723 * The control device is always connected. The disk device, on the 9724 * other hand, may not be online all the time. Need to change this 9725 * to figure out whether the disk device is actually online or not. 9726 */ 9727 if (lun != NULL) 9728 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9729 lun->be_lun->lun_type; 9730 else 9731 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9732 9733 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9734 sn_ptr->length = CTL_SN_LEN; 9735 /* 9736 * If we don't have a LUN, we just leave the serial number as 9737 * all spaces. 9738 */ 9739 if (lun != NULL) { 9740 strncpy((char *)sn_ptr->serial_num, 9741 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9742 } else 9743 memset(sn_ptr->serial_num, 0x20, CTL_SN_LEN); 9744 ctsio->scsi_status = SCSI_STATUS_OK; 9745 9746 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9747 ctsio->be_move_done = ctl_config_move_done; 9748 ctl_datamove((union ctl_io *)ctsio); 9749 9750 return (CTL_RETVAL_COMPLETE); 9751} 9752 9753 9754static int 9755ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9756{ 9757 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9758 struct ctl_lun *lun; 9759 int data_len; 9760 9761 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9762 9763 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9764 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9765 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9766 ctsio->kern_sg_entries = 0; 9767 9768 if (data_len < alloc_len) { 9769 ctsio->residual = alloc_len - data_len; 9770 ctsio->kern_data_len = data_len; 9771 ctsio->kern_total_len = data_len; 9772 } else { 9773 ctsio->residual = 0; 9774 ctsio->kern_data_len = alloc_len; 9775 ctsio->kern_total_len = alloc_len; 9776 } 9777 ctsio->kern_data_resid = 0; 9778 ctsio->kern_rel_offset = 0; 9779 ctsio->kern_sg_entries = 0; 9780 9781 /* 9782 * The control device is always connected. The disk device, on the 9783 * other hand, may not be online all the time. 9784 */ 9785 if (lun != NULL) 9786 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9787 lun->be_lun->lun_type; 9788 else 9789 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9790 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9791 eid_ptr->page_length = data_len - 4; 9792 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9793 eid_ptr->flags3 = SVPD_EID_V_SUP; 9794 9795 ctsio->scsi_status = SCSI_STATUS_OK; 9796 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9797 ctsio->be_move_done = ctl_config_move_done; 9798 ctl_datamove((union ctl_io *)ctsio); 9799 9800 return (CTL_RETVAL_COMPLETE); 9801} 9802 9803static int 9804ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9805{ 9806 struct scsi_vpd_mode_page_policy *mpp_ptr; 9807 struct ctl_lun *lun; 9808 int data_len; 9809 9810 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9811 9812 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9813 sizeof(struct scsi_vpd_mode_page_policy_descr); 9814 9815 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9816 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9817 ctsio->kern_sg_entries = 0; 9818 9819 if (data_len < alloc_len) { 9820 ctsio->residual = alloc_len - data_len; 9821 ctsio->kern_data_len = data_len; 9822 ctsio->kern_total_len = data_len; 9823 } else { 9824 ctsio->residual = 0; 9825 ctsio->kern_data_len = alloc_len; 9826 ctsio->kern_total_len = alloc_len; 9827 } 9828 ctsio->kern_data_resid = 0; 9829 ctsio->kern_rel_offset = 0; 9830 ctsio->kern_sg_entries = 0; 9831 9832 /* 9833 * The control device is always connected. The disk device, on the 9834 * other hand, may not be online all the time. 9835 */ 9836 if (lun != NULL) 9837 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9838 lun->be_lun->lun_type; 9839 else 9840 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9841 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9842 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9843 mpp_ptr->descr[0].page_code = 0x3f; 9844 mpp_ptr->descr[0].subpage_code = 0xff; 9845 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9846 9847 ctsio->scsi_status = SCSI_STATUS_OK; 9848 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9849 ctsio->be_move_done = ctl_config_move_done; 9850 ctl_datamove((union ctl_io *)ctsio); 9851 9852 return (CTL_RETVAL_COMPLETE); 9853} 9854 9855static int 9856ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9857{ 9858 struct scsi_vpd_device_id *devid_ptr; 9859 struct scsi_vpd_id_descriptor *desc; 9860 struct ctl_softc *ctl_softc; 9861 struct ctl_lun *lun; 9862 struct ctl_port *port; 9863 int data_len; 9864 uint8_t proto; 9865 9866 ctl_softc = control_softc; 9867 9868 port = ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]; 9869 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9870 9871 data_len = sizeof(struct scsi_vpd_device_id) + 9872 sizeof(struct scsi_vpd_id_descriptor) + 9873 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9874 sizeof(struct scsi_vpd_id_descriptor) + 9875 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9876 if (lun && lun->lun_devid) 9877 data_len += lun->lun_devid->len; 9878 if (port->port_devid) 9879 data_len += port->port_devid->len; 9880 if (port->target_devid) 9881 data_len += port->target_devid->len; 9882 9883 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9884 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9885 ctsio->kern_sg_entries = 0; 9886 9887 if (data_len < alloc_len) { 9888 ctsio->residual = alloc_len - data_len; 9889 ctsio->kern_data_len = data_len; 9890 ctsio->kern_total_len = data_len; 9891 } else { 9892 ctsio->residual = 0; 9893 ctsio->kern_data_len = alloc_len; 9894 ctsio->kern_total_len = alloc_len; 9895 } 9896 ctsio->kern_data_resid = 0; 9897 ctsio->kern_rel_offset = 0; 9898 ctsio->kern_sg_entries = 0; 9899 9900 /* 9901 * The control device is always connected. The disk device, on the 9902 * other hand, may not be online all the time. 9903 */ 9904 if (lun != NULL) 9905 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9906 lun->be_lun->lun_type; 9907 else 9908 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9909 devid_ptr->page_code = SVPD_DEVICE_ID; 9910 scsi_ulto2b(data_len - 4, devid_ptr->length); 9911 9912 if (port->port_type == CTL_PORT_FC) 9913 proto = SCSI_PROTO_FC << 4; 9914 else if (port->port_type == CTL_PORT_ISCSI) 9915 proto = SCSI_PROTO_ISCSI << 4; 9916 else 9917 proto = SCSI_PROTO_SPI << 4; 9918 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9919 9920 /* 9921 * We're using a LUN association here. i.e., this device ID is a 9922 * per-LUN identifier. 9923 */ 9924 if (lun && lun->lun_devid) { 9925 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9926 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9927 lun->lun_devid->len); 9928 } 9929 9930 /* 9931 * This is for the WWPN which is a port association. 9932 */ 9933 if (port->port_devid) { 9934 memcpy(desc, port->port_devid->data, port->port_devid->len); 9935 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9936 port->port_devid->len); 9937 } 9938 9939 /* 9940 * This is for the Relative Target Port(type 4h) identifier 9941 */ 9942 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9943 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9944 SVPD_ID_TYPE_RELTARG; 9945 desc->length = 4; 9946 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9947 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9948 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9949 9950 /* 9951 * This is for the Target Port Group(type 5h) identifier 9952 */ 9953 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9954 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9955 SVPD_ID_TYPE_TPORTGRP; 9956 desc->length = 4; 9957 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS + 1, 9958 &desc->identifier[2]); 9959 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9960 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9961 9962 /* 9963 * This is for the Target identifier 9964 */ 9965 if (port->target_devid) { 9966 memcpy(desc, port->target_devid->data, port->target_devid->len); 9967 } 9968 9969 ctsio->scsi_status = SCSI_STATUS_OK; 9970 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9971 ctsio->be_move_done = ctl_config_move_done; 9972 ctl_datamove((union ctl_io *)ctsio); 9973 9974 return (CTL_RETVAL_COMPLETE); 9975} 9976 9977static int 9978ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 9979{ 9980 struct ctl_softc *softc = control_softc; 9981 struct scsi_vpd_scsi_ports *sp; 9982 struct scsi_vpd_port_designation *pd; 9983 struct scsi_vpd_port_designation_cont *pdc; 9984 struct ctl_lun *lun; 9985 struct ctl_port *port; 9986 int data_len, num_target_ports, iid_len, id_len, g, pg, p; 9987 int num_target_port_groups; 9988 9989 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9990 9991 if (softc->is_single) 9992 num_target_port_groups = 1; 9993 else 9994 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 9995 num_target_ports = 0; 9996 iid_len = 0; 9997 id_len = 0; 9998 mtx_lock(&softc->ctl_lock); 9999 STAILQ_FOREACH(port, &softc->port_list, links) { 10000 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10001 continue; 10002 if (lun != NULL && 10003 ctl_map_lun_back(port->targ_port, lun->lun) >= 10004 CTL_MAX_LUNS) 10005 continue; 10006 num_target_ports++; 10007 if (port->init_devid) 10008 iid_len += port->init_devid->len; 10009 if (port->port_devid) 10010 id_len += port->port_devid->len; 10011 } 10012 mtx_unlock(&softc->ctl_lock); 10013 10014 data_len = sizeof(struct scsi_vpd_scsi_ports) + num_target_port_groups * 10015 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 10016 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 10017 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10018 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 10019 ctsio->kern_sg_entries = 0; 10020 10021 if (data_len < alloc_len) { 10022 ctsio->residual = alloc_len - data_len; 10023 ctsio->kern_data_len = data_len; 10024 ctsio->kern_total_len = data_len; 10025 } else { 10026 ctsio->residual = 0; 10027 ctsio->kern_data_len = alloc_len; 10028 ctsio->kern_total_len = alloc_len; 10029 } 10030 ctsio->kern_data_resid = 0; 10031 ctsio->kern_rel_offset = 0; 10032 ctsio->kern_sg_entries = 0; 10033 10034 /* 10035 * The control device is always connected. The disk device, on the 10036 * other hand, may not be online all the time. Need to change this 10037 * to figure out whether the disk device is actually online or not. 10038 */ 10039 if (lun != NULL) 10040 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 10041 lun->be_lun->lun_type; 10042 else 10043 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10044 10045 sp->page_code = SVPD_SCSI_PORTS; 10046 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 10047 sp->page_length); 10048 pd = &sp->design[0]; 10049 10050 mtx_lock(&softc->ctl_lock); 10051 pg = softc->port_offset / CTL_MAX_PORTS; 10052 for (g = 0; g < num_target_port_groups; g++) { 10053 STAILQ_FOREACH(port, &softc->port_list, links) { 10054 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10055 continue; 10056 if (lun != NULL && 10057 ctl_map_lun_back(port->targ_port, lun->lun) >= 10058 CTL_MAX_LUNS) 10059 continue; 10060 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 10061 scsi_ulto2b(p, pd->relative_port_id); 10062 if (port->init_devid && g == pg) { 10063 iid_len = port->init_devid->len; 10064 memcpy(pd->initiator_transportid, 10065 port->init_devid->data, port->init_devid->len); 10066 } else 10067 iid_len = 0; 10068 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 10069 pdc = (struct scsi_vpd_port_designation_cont *) 10070 (&pd->initiator_transportid[iid_len]); 10071 if (port->port_devid && g == pg) { 10072 id_len = port->port_devid->len; 10073 memcpy(pdc->target_port_descriptors, 10074 port->port_devid->data, port->port_devid->len); 10075 } else 10076 id_len = 0; 10077 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 10078 pd = (struct scsi_vpd_port_designation *) 10079 ((uint8_t *)pdc->target_port_descriptors + id_len); 10080 } 10081 } 10082 mtx_unlock(&softc->ctl_lock); 10083 10084 ctsio->scsi_status = SCSI_STATUS_OK; 10085 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10086 ctsio->be_move_done = ctl_config_move_done; 10087 ctl_datamove((union ctl_io *)ctsio); 10088 10089 return (CTL_RETVAL_COMPLETE); 10090} 10091 10092static int 10093ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 10094{ 10095 struct scsi_vpd_block_limits *bl_ptr; 10096 struct ctl_lun *lun; 10097 int bs; 10098 10099 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10100 10101 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 10102 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 10103 ctsio->kern_sg_entries = 0; 10104 10105 if (sizeof(*bl_ptr) < alloc_len) { 10106 ctsio->residual = alloc_len - sizeof(*bl_ptr); 10107 ctsio->kern_data_len = sizeof(*bl_ptr); 10108 ctsio->kern_total_len = sizeof(*bl_ptr); 10109 } else { 10110 ctsio->residual = 0; 10111 ctsio->kern_data_len = alloc_len; 10112 ctsio->kern_total_len = alloc_len; 10113 } 10114 ctsio->kern_data_resid = 0; 10115 ctsio->kern_rel_offset = 0; 10116 ctsio->kern_sg_entries = 0; 10117 10118 /* 10119 * The control device is always connected. The disk device, on the 10120 * other hand, may not be online all the time. Need to change this 10121 * to figure out whether the disk device is actually online or not. 10122 */ 10123 if (lun != NULL) 10124 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10125 lun->be_lun->lun_type; 10126 else 10127 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10128 10129 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 10130 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 10131 bl_ptr->max_cmp_write_len = 0xff; 10132 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 10133 if (lun != NULL) { 10134 bs = lun->be_lun->blocksize; 10135 scsi_ulto4b(MAXPHYS / bs, bl_ptr->opt_txfer_len); 10136 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10137 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 10138 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 10139 if (lun->be_lun->pblockexp != 0) { 10140 scsi_ulto4b((1 << lun->be_lun->pblockexp), 10141 bl_ptr->opt_unmap_grain); 10142 scsi_ulto4b(0x80000000 | lun->be_lun->pblockoff, 10143 bl_ptr->unmap_grain_align); 10144 } 10145 } 10146 scsi_ulto4b(lun->be_lun->atomicblock, 10147 bl_ptr->max_atomic_transfer_length); 10148 scsi_ulto4b(0, bl_ptr->atomic_alignment); 10149 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 10150 } 10151 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 10152 10153 ctsio->scsi_status = SCSI_STATUS_OK; 10154 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10155 ctsio->be_move_done = ctl_config_move_done; 10156 ctl_datamove((union ctl_io *)ctsio); 10157 10158 return (CTL_RETVAL_COMPLETE); 10159} 10160 10161static int 10162ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 10163{ 10164 struct scsi_vpd_block_device_characteristics *bdc_ptr; 10165 struct ctl_lun *lun; 10166 const char *value; 10167 u_int i; 10168 10169 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10170 10171 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 10172 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 10173 ctsio->kern_sg_entries = 0; 10174 10175 if (sizeof(*bdc_ptr) < alloc_len) { 10176 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 10177 ctsio->kern_data_len = sizeof(*bdc_ptr); 10178 ctsio->kern_total_len = sizeof(*bdc_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 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10195 lun->be_lun->lun_type; 10196 else 10197 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10198 bdc_ptr->page_code = SVPD_BDC; 10199 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 10200 if (lun != NULL && 10201 (value = ctl_get_opt(&lun->be_lun->options, "rpm")) != NULL) 10202 i = strtol(value, NULL, 0); 10203 else 10204 i = CTL_DEFAULT_ROTATION_RATE; 10205 scsi_ulto2b(i, bdc_ptr->medium_rotation_rate); 10206 if (lun != NULL && 10207 (value = ctl_get_opt(&lun->be_lun->options, "formfactor")) != NULL) 10208 i = strtol(value, NULL, 0); 10209 else 10210 i = 0; 10211 bdc_ptr->wab_wac_ff = (i & 0x0f); 10212 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 10213 10214 ctsio->scsi_status = SCSI_STATUS_OK; 10215 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10216 ctsio->be_move_done = ctl_config_move_done; 10217 ctl_datamove((union ctl_io *)ctsio); 10218 10219 return (CTL_RETVAL_COMPLETE); 10220} 10221 10222static int 10223ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10224{ 10225 struct scsi_vpd_logical_block_prov *lbp_ptr; 10226 struct ctl_lun *lun; 10227 10228 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10229 10230 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10231 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10232 ctsio->kern_sg_entries = 0; 10233 10234 if (sizeof(*lbp_ptr) < alloc_len) { 10235 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10236 ctsio->kern_data_len = sizeof(*lbp_ptr); 10237 ctsio->kern_total_len = sizeof(*lbp_ptr); 10238 } else { 10239 ctsio->residual = 0; 10240 ctsio->kern_data_len = alloc_len; 10241 ctsio->kern_total_len = alloc_len; 10242 } 10243 ctsio->kern_data_resid = 0; 10244 ctsio->kern_rel_offset = 0; 10245 ctsio->kern_sg_entries = 0; 10246 10247 /* 10248 * The control device is always connected. The disk device, on the 10249 * other hand, may not be online all the time. Need to change this 10250 * to figure out whether the disk device is actually online or not. 10251 */ 10252 if (lun != NULL) 10253 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10254 lun->be_lun->lun_type; 10255 else 10256 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10257 10258 lbp_ptr->page_code = SVPD_LBP; 10259 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10260 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10261 lbp_ptr->threshold_exponent = CTL_LBP_EXPONENT; 10262 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10263 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10264 lbp_ptr->prov_type = SVPD_LBP_THIN; 10265 } 10266 10267 ctsio->scsi_status = SCSI_STATUS_OK; 10268 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10269 ctsio->be_move_done = ctl_config_move_done; 10270 ctl_datamove((union ctl_io *)ctsio); 10271 10272 return (CTL_RETVAL_COMPLETE); 10273} 10274 10275static int 10276ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10277{ 10278 struct scsi_inquiry *cdb; 10279 int alloc_len, retval; 10280 10281 cdb = (struct scsi_inquiry *)ctsio->cdb; 10282 10283 retval = CTL_RETVAL_COMPLETE; 10284 10285 alloc_len = scsi_2btoul(cdb->length); 10286 10287 switch (cdb->page_code) { 10288 case SVPD_SUPPORTED_PAGES: 10289 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10290 break; 10291 case SVPD_UNIT_SERIAL_NUMBER: 10292 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10293 break; 10294 case SVPD_DEVICE_ID: 10295 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10296 break; 10297 case SVPD_EXTENDED_INQUIRY_DATA: 10298 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10299 break; 10300 case SVPD_MODE_PAGE_POLICY: 10301 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10302 break; 10303 case SVPD_SCSI_PORTS: 10304 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10305 break; 10306 case SVPD_SCSI_TPC: 10307 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10308 break; 10309 case SVPD_BLOCK_LIMITS: 10310 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10311 break; 10312 case SVPD_BDC: 10313 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10314 break; 10315 case SVPD_LBP: 10316 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10317 break; 10318 default: 10319 ctl_set_invalid_field(ctsio, 10320 /*sks_valid*/ 1, 10321 /*command*/ 1, 10322 /*field*/ 2, 10323 /*bit_valid*/ 0, 10324 /*bit*/ 0); 10325 ctl_done((union ctl_io *)ctsio); 10326 retval = CTL_RETVAL_COMPLETE; 10327 break; 10328 } 10329 10330 return (retval); 10331} 10332 10333static int 10334ctl_inquiry_std(struct ctl_scsiio *ctsio) 10335{ 10336 struct scsi_inquiry_data *inq_ptr; 10337 struct scsi_inquiry *cdb; 10338 struct ctl_softc *ctl_softc; 10339 struct ctl_lun *lun; 10340 char *val; 10341 uint32_t alloc_len, data_len; 10342 ctl_port_type port_type; 10343 10344 ctl_softc = control_softc; 10345 10346 /* 10347 * Figure out whether we're talking to a Fibre Channel port or not. 10348 * We treat the ioctl front end, and any SCSI adapters, as packetized 10349 * SCSI front ends. 10350 */ 10351 port_type = ctl_softc->ctl_ports[ 10352 ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]->port_type; 10353 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10354 port_type = CTL_PORT_SCSI; 10355 10356 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10357 cdb = (struct scsi_inquiry *)ctsio->cdb; 10358 alloc_len = scsi_2btoul(cdb->length); 10359 10360 /* 10361 * We malloc the full inquiry data size here and fill it 10362 * in. If the user only asks for less, we'll give him 10363 * that much. 10364 */ 10365 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10366 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10367 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10368 ctsio->kern_sg_entries = 0; 10369 ctsio->kern_data_resid = 0; 10370 ctsio->kern_rel_offset = 0; 10371 10372 if (data_len < alloc_len) { 10373 ctsio->residual = alloc_len - data_len; 10374 ctsio->kern_data_len = data_len; 10375 ctsio->kern_total_len = data_len; 10376 } else { 10377 ctsio->residual = 0; 10378 ctsio->kern_data_len = alloc_len; 10379 ctsio->kern_total_len = alloc_len; 10380 } 10381 10382 /* 10383 * If we have a LUN configured, report it as connected. Otherwise, 10384 * report that it is offline or no device is supported, depending 10385 * on the value of inquiry_pq_no_lun. 10386 * 10387 * According to the spec (SPC-4 r34), the peripheral qualifier 10388 * SID_QUAL_LU_OFFLINE (001b) is used in the following scenario: 10389 * 10390 * "A peripheral device having the specified peripheral device type 10391 * is not connected to this logical unit. However, the device 10392 * server is capable of supporting the specified peripheral device 10393 * type on this logical unit." 10394 * 10395 * According to the same spec, the peripheral qualifier 10396 * SID_QUAL_BAD_LU (011b) is used in this scenario: 10397 * 10398 * "The device server is not capable of supporting a peripheral 10399 * device on this logical unit. For this peripheral qualifier the 10400 * peripheral device type shall be set to 1Fh. All other peripheral 10401 * device type values are reserved for this peripheral qualifier." 10402 * 10403 * Given the text, it would seem that we probably want to report that 10404 * the LUN is offline here. There is no LUN connected, but we can 10405 * support a LUN at the given LUN number. 10406 * 10407 * In the real world, though, it sounds like things are a little 10408 * different: 10409 * 10410 * - Linux, when presented with a LUN with the offline peripheral 10411 * qualifier, will create an sg driver instance for it. So when 10412 * you attach it to CTL, you wind up with a ton of sg driver 10413 * instances. (One for every LUN that Linux bothered to probe.) 10414 * Linux does this despite the fact that it issues a REPORT LUNs 10415 * to LUN 0 to get the inventory of supported LUNs. 10416 * 10417 * - There is other anecdotal evidence (from Emulex folks) about 10418 * arrays that use the offline peripheral qualifier for LUNs that 10419 * are on the "passive" path in an active/passive array. 10420 * 10421 * So the solution is provide a hopefully reasonable default 10422 * (return bad/no LUN) and allow the user to change the behavior 10423 * with a tunable/sysctl variable. 10424 */ 10425 if (lun != NULL) 10426 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10427 lun->be_lun->lun_type; 10428 else if (ctl_softc->inquiry_pq_no_lun == 0) 10429 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10430 else 10431 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10432 10433 /* RMB in byte 2 is 0 */ 10434 inq_ptr->version = SCSI_REV_SPC4; 10435 10436 /* 10437 * According to SAM-3, even if a device only supports a single 10438 * level of LUN addressing, it should still set the HISUP bit: 10439 * 10440 * 4.9.1 Logical unit numbers overview 10441 * 10442 * All logical unit number formats described in this standard are 10443 * hierarchical in structure even when only a single level in that 10444 * hierarchy is used. The HISUP bit shall be set to one in the 10445 * standard INQUIRY data (see SPC-2) when any logical unit number 10446 * format described in this standard is used. Non-hierarchical 10447 * formats are outside the scope of this standard. 10448 * 10449 * Therefore we set the HiSup bit here. 10450 * 10451 * The reponse format is 2, per SPC-3. 10452 */ 10453 inq_ptr->response_format = SID_HiSup | 2; 10454 10455 inq_ptr->additional_length = data_len - 10456 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10457 CTL_DEBUG_PRINT(("additional_length = %d\n", 10458 inq_ptr->additional_length)); 10459 10460 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10461 /* 16 bit addressing */ 10462 if (port_type == CTL_PORT_SCSI) 10463 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10464 /* XXX set the SID_MultiP bit here if we're actually going to 10465 respond on multiple ports */ 10466 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10467 10468 /* 16 bit data bus, synchronous transfers */ 10469 if (port_type == CTL_PORT_SCSI) 10470 inq_ptr->flags = SID_WBus16 | SID_Sync; 10471 /* 10472 * XXX KDM do we want to support tagged queueing on the control 10473 * device at all? 10474 */ 10475 if ((lun == NULL) 10476 || (lun->be_lun->lun_type != T_PROCESSOR)) 10477 inq_ptr->flags |= SID_CmdQue; 10478 /* 10479 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10480 * We have 8 bytes for the vendor name, and 16 bytes for the device 10481 * name and 4 bytes for the revision. 10482 */ 10483 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10484 "vendor")) == NULL) { 10485 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10486 } else { 10487 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10488 strncpy(inq_ptr->vendor, val, 10489 min(sizeof(inq_ptr->vendor), strlen(val))); 10490 } 10491 if (lun == NULL) { 10492 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10493 sizeof(inq_ptr->product)); 10494 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10495 switch (lun->be_lun->lun_type) { 10496 case T_DIRECT: 10497 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10498 sizeof(inq_ptr->product)); 10499 break; 10500 case T_PROCESSOR: 10501 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10502 sizeof(inq_ptr->product)); 10503 break; 10504 default: 10505 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10506 sizeof(inq_ptr->product)); 10507 break; 10508 } 10509 } else { 10510 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10511 strncpy(inq_ptr->product, val, 10512 min(sizeof(inq_ptr->product), strlen(val))); 10513 } 10514 10515 /* 10516 * XXX make this a macro somewhere so it automatically gets 10517 * incremented when we make changes. 10518 */ 10519 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10520 "revision")) == NULL) { 10521 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10522 } else { 10523 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10524 strncpy(inq_ptr->revision, val, 10525 min(sizeof(inq_ptr->revision), strlen(val))); 10526 } 10527 10528 /* 10529 * For parallel SCSI, we support double transition and single 10530 * transition clocking. We also support QAS (Quick Arbitration 10531 * and Selection) and Information Unit transfers on both the 10532 * control and array devices. 10533 */ 10534 if (port_type == CTL_PORT_SCSI) 10535 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10536 SID_SPI_IUS; 10537 10538 /* SAM-5 (no version claimed) */ 10539 scsi_ulto2b(0x00A0, inq_ptr->version1); 10540 /* SPC-4 (no version claimed) */ 10541 scsi_ulto2b(0x0460, inq_ptr->version2); 10542 if (port_type == CTL_PORT_FC) { 10543 /* FCP-2 ANSI INCITS.350:2003 */ 10544 scsi_ulto2b(0x0917, inq_ptr->version3); 10545 } else if (port_type == CTL_PORT_SCSI) { 10546 /* SPI-4 ANSI INCITS.362:200x */ 10547 scsi_ulto2b(0x0B56, inq_ptr->version3); 10548 } else if (port_type == CTL_PORT_ISCSI) { 10549 /* iSCSI (no version claimed) */ 10550 scsi_ulto2b(0x0960, inq_ptr->version3); 10551 } else if (port_type == CTL_PORT_SAS) { 10552 /* SAS (no version claimed) */ 10553 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10554 } 10555 10556 if (lun == NULL) { 10557 /* SBC-4 (no version claimed) */ 10558 scsi_ulto2b(0x0600, inq_ptr->version4); 10559 } else { 10560 switch (lun->be_lun->lun_type) { 10561 case T_DIRECT: 10562 /* SBC-4 (no version claimed) */ 10563 scsi_ulto2b(0x0600, inq_ptr->version4); 10564 break; 10565 case T_PROCESSOR: 10566 default: 10567 break; 10568 } 10569 } 10570 10571 ctsio->scsi_status = SCSI_STATUS_OK; 10572 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10573 ctsio->be_move_done = ctl_config_move_done; 10574 ctl_datamove((union ctl_io *)ctsio); 10575 return (CTL_RETVAL_COMPLETE); 10576} 10577 10578int 10579ctl_inquiry(struct ctl_scsiio *ctsio) 10580{ 10581 struct scsi_inquiry *cdb; 10582 int retval; 10583 10584 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10585 10586 cdb = (struct scsi_inquiry *)ctsio->cdb; 10587 if (cdb->byte2 & SI_EVPD) 10588 retval = ctl_inquiry_evpd(ctsio); 10589 else if (cdb->page_code == 0) 10590 retval = ctl_inquiry_std(ctsio); 10591 else { 10592 ctl_set_invalid_field(ctsio, 10593 /*sks_valid*/ 1, 10594 /*command*/ 1, 10595 /*field*/ 2, 10596 /*bit_valid*/ 0, 10597 /*bit*/ 0); 10598 ctl_done((union ctl_io *)ctsio); 10599 return (CTL_RETVAL_COMPLETE); 10600 } 10601 10602 return (retval); 10603} 10604 10605/* 10606 * For known CDB types, parse the LBA and length. 10607 */ 10608static int 10609ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10610{ 10611 if (io->io_hdr.io_type != CTL_IO_SCSI) 10612 return (1); 10613 10614 switch (io->scsiio.cdb[0]) { 10615 case COMPARE_AND_WRITE: { 10616 struct scsi_compare_and_write *cdb; 10617 10618 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10619 10620 *lba = scsi_8btou64(cdb->addr); 10621 *len = cdb->length; 10622 break; 10623 } 10624 case READ_6: 10625 case WRITE_6: { 10626 struct scsi_rw_6 *cdb; 10627 10628 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10629 10630 *lba = scsi_3btoul(cdb->addr); 10631 /* only 5 bits are valid in the most significant address byte */ 10632 *lba &= 0x1fffff; 10633 *len = cdb->length; 10634 break; 10635 } 10636 case READ_10: 10637 case WRITE_10: { 10638 struct scsi_rw_10 *cdb; 10639 10640 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10641 10642 *lba = scsi_4btoul(cdb->addr); 10643 *len = scsi_2btoul(cdb->length); 10644 break; 10645 } 10646 case WRITE_VERIFY_10: { 10647 struct scsi_write_verify_10 *cdb; 10648 10649 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10650 10651 *lba = scsi_4btoul(cdb->addr); 10652 *len = scsi_2btoul(cdb->length); 10653 break; 10654 } 10655 case READ_12: 10656 case WRITE_12: { 10657 struct scsi_rw_12 *cdb; 10658 10659 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10660 10661 *lba = scsi_4btoul(cdb->addr); 10662 *len = scsi_4btoul(cdb->length); 10663 break; 10664 } 10665 case WRITE_VERIFY_12: { 10666 struct scsi_write_verify_12 *cdb; 10667 10668 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10669 10670 *lba = scsi_4btoul(cdb->addr); 10671 *len = scsi_4btoul(cdb->length); 10672 break; 10673 } 10674 case READ_16: 10675 case WRITE_16: 10676 case WRITE_ATOMIC_16: { 10677 struct scsi_rw_16 *cdb; 10678 10679 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10680 10681 *lba = scsi_8btou64(cdb->addr); 10682 *len = scsi_4btoul(cdb->length); 10683 break; 10684 } 10685 case WRITE_VERIFY_16: { 10686 struct scsi_write_verify_16 *cdb; 10687 10688 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10689 10690 *lba = scsi_8btou64(cdb->addr); 10691 *len = scsi_4btoul(cdb->length); 10692 break; 10693 } 10694 case WRITE_SAME_10: { 10695 struct scsi_write_same_10 *cdb; 10696 10697 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10698 10699 *lba = scsi_4btoul(cdb->addr); 10700 *len = scsi_2btoul(cdb->length); 10701 break; 10702 } 10703 case WRITE_SAME_16: { 10704 struct scsi_write_same_16 *cdb; 10705 10706 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10707 10708 *lba = scsi_8btou64(cdb->addr); 10709 *len = scsi_4btoul(cdb->length); 10710 break; 10711 } 10712 case VERIFY_10: { 10713 struct scsi_verify_10 *cdb; 10714 10715 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10716 10717 *lba = scsi_4btoul(cdb->addr); 10718 *len = scsi_2btoul(cdb->length); 10719 break; 10720 } 10721 case VERIFY_12: { 10722 struct scsi_verify_12 *cdb; 10723 10724 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10725 10726 *lba = scsi_4btoul(cdb->addr); 10727 *len = scsi_4btoul(cdb->length); 10728 break; 10729 } 10730 case VERIFY_16: { 10731 struct scsi_verify_16 *cdb; 10732 10733 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10734 10735 *lba = scsi_8btou64(cdb->addr); 10736 *len = scsi_4btoul(cdb->length); 10737 break; 10738 } 10739 case UNMAP: { 10740 *lba = 0; 10741 *len = UINT64_MAX; 10742 break; 10743 } 10744 default: 10745 return (1); 10746 break; /* NOTREACHED */ 10747 } 10748 10749 return (0); 10750} 10751 10752static ctl_action 10753ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2) 10754{ 10755 uint64_t endlba1, endlba2; 10756 10757 endlba1 = lba1 + len1 - 1; 10758 endlba2 = lba2 + len2 - 1; 10759 10760 if ((endlba1 < lba2) 10761 || (endlba2 < lba1)) 10762 return (CTL_ACTION_PASS); 10763 else 10764 return (CTL_ACTION_BLOCK); 10765} 10766 10767static int 10768ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10769{ 10770 struct ctl_ptr_len_flags *ptrlen; 10771 struct scsi_unmap_desc *buf, *end, *range; 10772 uint64_t lba; 10773 uint32_t len; 10774 10775 /* If not UNMAP -- go other way. */ 10776 if (io->io_hdr.io_type != CTL_IO_SCSI || 10777 io->scsiio.cdb[0] != UNMAP) 10778 return (CTL_ACTION_ERROR); 10779 10780 /* If UNMAP without data -- block and wait for data. */ 10781 ptrlen = (struct ctl_ptr_len_flags *) 10782 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10783 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10784 ptrlen->ptr == NULL) 10785 return (CTL_ACTION_BLOCK); 10786 10787 /* UNMAP with data -- check for collision. */ 10788 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10789 end = buf + ptrlen->len / sizeof(*buf); 10790 for (range = buf; range < end; range++) { 10791 lba = scsi_8btou64(range->lba); 10792 len = scsi_4btoul(range->length); 10793 if ((lba < lba2 + len2) && (lba + len > lba2)) 10794 return (CTL_ACTION_BLOCK); 10795 } 10796 return (CTL_ACTION_PASS); 10797} 10798 10799static ctl_action 10800ctl_extent_check(union ctl_io *io1, union ctl_io *io2) 10801{ 10802 uint64_t lba1, lba2; 10803 uint64_t len1, len2; 10804 int retval; 10805 10806 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10807 return (CTL_ACTION_ERROR); 10808 10809 retval = ctl_extent_check_unmap(io2, lba1, len1); 10810 if (retval != CTL_ACTION_ERROR) 10811 return (retval); 10812 10813 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10814 return (CTL_ACTION_ERROR); 10815 10816 return (ctl_extent_check_lba(lba1, len1, lba2, len2)); 10817} 10818 10819static ctl_action 10820ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10821 union ctl_io *ooa_io) 10822{ 10823 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10824 ctl_serialize_action *serialize_row; 10825 10826 /* 10827 * The initiator attempted multiple untagged commands at the same 10828 * time. Can't do that. 10829 */ 10830 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10831 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10832 && ((pending_io->io_hdr.nexus.targ_port == 10833 ooa_io->io_hdr.nexus.targ_port) 10834 && (pending_io->io_hdr.nexus.initid.id == 10835 ooa_io->io_hdr.nexus.initid.id)) 10836 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10837 return (CTL_ACTION_OVERLAP); 10838 10839 /* 10840 * The initiator attempted to send multiple tagged commands with 10841 * the same ID. (It's fine if different initiators have the same 10842 * tag ID.) 10843 * 10844 * Even if all of those conditions are true, we don't kill the I/O 10845 * if the command ahead of us has been aborted. We won't end up 10846 * sending it to the FETD, and it's perfectly legal to resend a 10847 * command with the same tag number as long as the previous 10848 * instance of this tag number has been aborted somehow. 10849 */ 10850 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10851 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10852 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10853 && ((pending_io->io_hdr.nexus.targ_port == 10854 ooa_io->io_hdr.nexus.targ_port) 10855 && (pending_io->io_hdr.nexus.initid.id == 10856 ooa_io->io_hdr.nexus.initid.id)) 10857 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10858 return (CTL_ACTION_OVERLAP_TAG); 10859 10860 /* 10861 * If we get a head of queue tag, SAM-3 says that we should 10862 * immediately execute it. 10863 * 10864 * What happens if this command would normally block for some other 10865 * reason? e.g. a request sense with a head of queue tag 10866 * immediately after a write. Normally that would block, but this 10867 * will result in its getting executed immediately... 10868 * 10869 * We currently return "pass" instead of "skip", so we'll end up 10870 * going through the rest of the queue to check for overlapped tags. 10871 * 10872 * XXX KDM check for other types of blockage first?? 10873 */ 10874 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10875 return (CTL_ACTION_PASS); 10876 10877 /* 10878 * Ordered tags have to block until all items ahead of them 10879 * have completed. If we get called with an ordered tag, we always 10880 * block, if something else is ahead of us in the queue. 10881 */ 10882 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 10883 return (CTL_ACTION_BLOCK); 10884 10885 /* 10886 * Simple tags get blocked until all head of queue and ordered tags 10887 * ahead of them have completed. I'm lumping untagged commands in 10888 * with simple tags here. XXX KDM is that the right thing to do? 10889 */ 10890 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10891 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 10892 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10893 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 10894 return (CTL_ACTION_BLOCK); 10895 10896 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 10897 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 10898 10899 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 10900 10901 switch (serialize_row[pending_entry->seridx]) { 10902 case CTL_SER_BLOCK: 10903 return (CTL_ACTION_BLOCK); 10904 case CTL_SER_EXTENT: 10905 return (ctl_extent_check(pending_io, ooa_io)); 10906 case CTL_SER_EXTENTOPT: 10907 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 10908 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 10909 return (ctl_extent_check(pending_io, ooa_io)); 10910 /* FALLTHROUGH */ 10911 case CTL_SER_PASS: 10912 return (CTL_ACTION_PASS); 10913 case CTL_SER_BLOCKOPT: 10914 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 10915 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 10916 return (CTL_ACTION_BLOCK); 10917 return (CTL_ACTION_PASS); 10918 case CTL_SER_SKIP: 10919 return (CTL_ACTION_SKIP); 10920 default: 10921 panic("invalid serialization value %d", 10922 serialize_row[pending_entry->seridx]); 10923 } 10924 10925 return (CTL_ACTION_ERROR); 10926} 10927 10928/* 10929 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 10930 * Assumptions: 10931 * - pending_io is generally either incoming, or on the blocked queue 10932 * - starting I/O is the I/O we want to start the check with. 10933 */ 10934static ctl_action 10935ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 10936 union ctl_io *starting_io) 10937{ 10938 union ctl_io *ooa_io; 10939 ctl_action action; 10940 10941 mtx_assert(&lun->lun_lock, MA_OWNED); 10942 10943 /* 10944 * Run back along the OOA queue, starting with the current 10945 * blocked I/O and going through every I/O before it on the 10946 * queue. If starting_io is NULL, we'll just end up returning 10947 * CTL_ACTION_PASS. 10948 */ 10949 for (ooa_io = starting_io; ooa_io != NULL; 10950 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 10951 ooa_links)){ 10952 10953 /* 10954 * This routine just checks to see whether 10955 * cur_blocked is blocked by ooa_io, which is ahead 10956 * of it in the queue. It doesn't queue/dequeue 10957 * cur_blocked. 10958 */ 10959 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 10960 switch (action) { 10961 case CTL_ACTION_BLOCK: 10962 case CTL_ACTION_OVERLAP: 10963 case CTL_ACTION_OVERLAP_TAG: 10964 case CTL_ACTION_SKIP: 10965 case CTL_ACTION_ERROR: 10966 return (action); 10967 break; /* NOTREACHED */ 10968 case CTL_ACTION_PASS: 10969 break; 10970 default: 10971 panic("invalid action %d", action); 10972 break; /* NOTREACHED */ 10973 } 10974 } 10975 10976 return (CTL_ACTION_PASS); 10977} 10978 10979/* 10980 * Assumptions: 10981 * - An I/O has just completed, and has been removed from the per-LUN OOA 10982 * queue, so some items on the blocked queue may now be unblocked. 10983 */ 10984static int 10985ctl_check_blocked(struct ctl_lun *lun) 10986{ 10987 union ctl_io *cur_blocked, *next_blocked; 10988 10989 mtx_assert(&lun->lun_lock, MA_OWNED); 10990 10991 /* 10992 * Run forward from the head of the blocked queue, checking each 10993 * entry against the I/Os prior to it on the OOA queue to see if 10994 * there is still any blockage. 10995 * 10996 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 10997 * with our removing a variable on it while it is traversing the 10998 * list. 10999 */ 11000 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 11001 cur_blocked != NULL; cur_blocked = next_blocked) { 11002 union ctl_io *prev_ooa; 11003 ctl_action action; 11004 11005 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 11006 blocked_links); 11007 11008 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11009 ctl_ooaq, ooa_links); 11010 11011 /* 11012 * If cur_blocked happens to be the first item in the OOA 11013 * queue now, prev_ooa will be NULL, and the action 11014 * returned will just be CTL_ACTION_PASS. 11015 */ 11016 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11017 11018 switch (action) { 11019 case CTL_ACTION_BLOCK: 11020 /* Nothing to do here, still blocked */ 11021 break; 11022 case CTL_ACTION_OVERLAP: 11023 case CTL_ACTION_OVERLAP_TAG: 11024 /* 11025 * This shouldn't happen! In theory we've already 11026 * checked this command for overlap... 11027 */ 11028 break; 11029 case CTL_ACTION_PASS: 11030 case CTL_ACTION_SKIP: { 11031 struct ctl_softc *softc; 11032 const struct ctl_cmd_entry *entry; 11033 uint32_t initidx; 11034 int isc_retval; 11035 11036 /* 11037 * The skip case shouldn't happen, this transaction 11038 * should have never made it onto the blocked queue. 11039 */ 11040 /* 11041 * This I/O is no longer blocked, we can remove it 11042 * from the blocked queue. Since this is a TAILQ 11043 * (doubly linked list), we can do O(1) removals 11044 * from any place on the list. 11045 */ 11046 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11047 blocked_links); 11048 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11049 11050 if (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC){ 11051 /* 11052 * Need to send IO back to original side to 11053 * run 11054 */ 11055 union ctl_ha_msg msg_info; 11056 11057 msg_info.hdr.original_sc = 11058 cur_blocked->io_hdr.original_sc; 11059 msg_info.hdr.serializing_sc = cur_blocked; 11060 msg_info.hdr.msg_type = CTL_MSG_R2R; 11061 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11062 &msg_info, sizeof(msg_info), 0)) > 11063 CTL_HA_STATUS_SUCCESS) { 11064 printf("CTL:Check Blocked error from " 11065 "ctl_ha_msg_send %d\n", 11066 isc_retval); 11067 } 11068 break; 11069 } 11070 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 11071 softc = control_softc; 11072 11073 initidx = ctl_get_initindex(&cur_blocked->io_hdr.nexus); 11074 11075 /* 11076 * Check this I/O for LUN state changes that may 11077 * have happened while this command was blocked. 11078 * The LUN state may have been changed by a command 11079 * ahead of us in the queue, so we need to re-check 11080 * for any states that can be caused by SCSI 11081 * commands. 11082 */ 11083 if (ctl_scsiio_lun_check(softc, lun, entry, 11084 &cur_blocked->scsiio) == 0) { 11085 cur_blocked->io_hdr.flags |= 11086 CTL_FLAG_IS_WAS_ON_RTR; 11087 ctl_enqueue_rtr(cur_blocked); 11088 } else 11089 ctl_done(cur_blocked); 11090 break; 11091 } 11092 default: 11093 /* 11094 * This probably shouldn't happen -- we shouldn't 11095 * get CTL_ACTION_ERROR, or anything else. 11096 */ 11097 break; 11098 } 11099 } 11100 11101 return (CTL_RETVAL_COMPLETE); 11102} 11103 11104/* 11105 * This routine (with one exception) checks LUN flags that can be set by 11106 * commands ahead of us in the OOA queue. These flags have to be checked 11107 * when a command initially comes in, and when we pull a command off the 11108 * blocked queue and are preparing to execute it. The reason we have to 11109 * check these flags for commands on the blocked queue is that the LUN 11110 * state may have been changed by a command ahead of us while we're on the 11111 * blocked queue. 11112 * 11113 * Ordering is somewhat important with these checks, so please pay 11114 * careful attention to the placement of any new checks. 11115 */ 11116static int 11117ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 11118 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11119{ 11120 int retval; 11121 uint32_t residx; 11122 11123 retval = 0; 11124 11125 mtx_assert(&lun->lun_lock, MA_OWNED); 11126 11127 /* 11128 * If this shelf is a secondary shelf controller, we have to reject 11129 * any media access commands. 11130 */ 11131 if ((ctl_softc->flags & CTL_FLAG_ACTIVE_SHELF) == 0 && 11132 (entry->flags & CTL_CMD_FLAG_OK_ON_SECONDARY) == 0) { 11133 ctl_set_lun_standby(ctsio); 11134 retval = 1; 11135 goto bailout; 11136 } 11137 11138 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11139 if (lun->flags & CTL_LUN_READONLY) { 11140 ctl_set_sense(ctsio, /*current_error*/ 1, 11141 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11142 /*asc*/ 0x27, /*ascq*/ 0x01, SSD_ELEM_NONE); 11143 retval = 1; 11144 goto bailout; 11145 } 11146 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT] 11147 .eca_and_aen & SCP_SWP) != 0) { 11148 ctl_set_sense(ctsio, /*current_error*/ 1, 11149 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11150 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11151 retval = 1; 11152 goto bailout; 11153 } 11154 } 11155 11156 /* 11157 * Check for a reservation conflict. If this command isn't allowed 11158 * even on reserved LUNs, and if this initiator isn't the one who 11159 * reserved us, reject the command with a reservation conflict. 11160 */ 11161 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 11162 if ((lun->flags & CTL_LUN_RESERVED) 11163 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11164 if (lun->res_idx != residx) { 11165 ctl_set_reservation_conflict(ctsio); 11166 retval = 1; 11167 goto bailout; 11168 } 11169 } 11170 11171 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0 || 11172 (entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV)) { 11173 /* No reservation or command is allowed. */; 11174 } else if ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_WRESV) && 11175 (lun->res_type == SPR_TYPE_WR_EX || 11176 lun->res_type == SPR_TYPE_WR_EX_RO || 11177 lun->res_type == SPR_TYPE_WR_EX_AR)) { 11178 /* The command is allowed for Write Exclusive resv. */; 11179 } else { 11180 /* 11181 * if we aren't registered or it's a res holder type 11182 * reservation and this isn't the res holder then set a 11183 * conflict. 11184 */ 11185 if (lun->pr_keys[residx] == 0 11186 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 11187 ctl_set_reservation_conflict(ctsio); 11188 retval = 1; 11189 goto bailout; 11190 } 11191 11192 } 11193 11194 if ((lun->flags & CTL_LUN_OFFLINE) 11195 && ((entry->flags & CTL_CMD_FLAG_OK_ON_OFFLINE) == 0)) { 11196 ctl_set_lun_not_ready(ctsio); 11197 retval = 1; 11198 goto bailout; 11199 } 11200 11201 /* 11202 * If the LUN is stopped, see if this particular command is allowed 11203 * for a stopped lun. Otherwise, reject it with 0x04,0x02. 11204 */ 11205 if ((lun->flags & CTL_LUN_STOPPED) 11206 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 11207 /* "Logical unit not ready, initializing cmd. required" */ 11208 ctl_set_lun_stopped(ctsio); 11209 retval = 1; 11210 goto bailout; 11211 } 11212 11213 if ((lun->flags & CTL_LUN_INOPERABLE) 11214 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 11215 /* "Medium format corrupted" */ 11216 ctl_set_medium_format_corrupted(ctsio); 11217 retval = 1; 11218 goto bailout; 11219 } 11220 11221bailout: 11222 return (retval); 11223 11224} 11225 11226static void 11227ctl_failover_io(union ctl_io *io, int have_lock) 11228{ 11229 ctl_set_busy(&io->scsiio); 11230 ctl_done(io); 11231} 11232 11233static void 11234ctl_failover(void) 11235{ 11236 struct ctl_lun *lun; 11237 struct ctl_softc *ctl_softc; 11238 union ctl_io *next_io, *pending_io; 11239 union ctl_io *io; 11240 int lun_idx; 11241 int i; 11242 11243 ctl_softc = control_softc; 11244 11245 mtx_lock(&ctl_softc->ctl_lock); 11246 /* 11247 * Remove any cmds from the other SC from the rtr queue. These 11248 * will obviously only be for LUNs for which we're the primary. 11249 * We can't send status or get/send data for these commands. 11250 * Since they haven't been executed yet, we can just remove them. 11251 * We'll either abort them or delete them below, depending on 11252 * which HA mode we're in. 11253 */ 11254#ifdef notyet 11255 mtx_lock(&ctl_softc->queue_lock); 11256 for (io = (union ctl_io *)STAILQ_FIRST(&ctl_softc->rtr_queue); 11257 io != NULL; io = next_io) { 11258 next_io = (union ctl_io *)STAILQ_NEXT(&io->io_hdr, links); 11259 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11260 STAILQ_REMOVE(&ctl_softc->rtr_queue, &io->io_hdr, 11261 ctl_io_hdr, links); 11262 } 11263 mtx_unlock(&ctl_softc->queue_lock); 11264#endif 11265 11266 for (lun_idx=0; lun_idx < ctl_softc->num_luns; lun_idx++) { 11267 lun = ctl_softc->ctl_luns[lun_idx]; 11268 if (lun==NULL) 11269 continue; 11270 11271 /* 11272 * Processor LUNs are primary on both sides. 11273 * XXX will this always be true? 11274 */ 11275 if (lun->be_lun->lun_type == T_PROCESSOR) 11276 continue; 11277 11278 if ((lun->flags & CTL_LUN_PRIMARY_SC) 11279 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11280 printf("FAILOVER: primary lun %d\n", lun_idx); 11281 /* 11282 * Remove all commands from the other SC. First from the 11283 * blocked queue then from the ooa queue. Once we have 11284 * removed them. Call ctl_check_blocked to see if there 11285 * is anything that can run. 11286 */ 11287 for (io = (union ctl_io *)TAILQ_FIRST( 11288 &lun->blocked_queue); io != NULL; io = next_io) { 11289 11290 next_io = (union ctl_io *)TAILQ_NEXT( 11291 &io->io_hdr, blocked_links); 11292 11293 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11294 TAILQ_REMOVE(&lun->blocked_queue, 11295 &io->io_hdr,blocked_links); 11296 io->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11297 TAILQ_REMOVE(&lun->ooa_queue, 11298 &io->io_hdr, ooa_links); 11299 11300 ctl_free_io(io); 11301 } 11302 } 11303 11304 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11305 io != NULL; io = next_io) { 11306 11307 next_io = (union ctl_io *)TAILQ_NEXT( 11308 &io->io_hdr, ooa_links); 11309 11310 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11311 11312 TAILQ_REMOVE(&lun->ooa_queue, 11313 &io->io_hdr, 11314 ooa_links); 11315 11316 ctl_free_io(io); 11317 } 11318 } 11319 ctl_check_blocked(lun); 11320 } else if ((lun->flags & CTL_LUN_PRIMARY_SC) 11321 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11322 11323 printf("FAILOVER: primary lun %d\n", lun_idx); 11324 /* 11325 * Abort all commands from the other SC. We can't 11326 * send status back for them now. These should get 11327 * cleaned up when they are completed or come out 11328 * for a datamove operation. 11329 */ 11330 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11331 io != NULL; io = next_io) { 11332 next_io = (union ctl_io *)TAILQ_NEXT( 11333 &io->io_hdr, ooa_links); 11334 11335 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11336 io->io_hdr.flags |= CTL_FLAG_ABORT; 11337 } 11338 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11339 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11340 11341 printf("FAILOVER: secondary lun %d\n", lun_idx); 11342 11343 lun->flags |= CTL_LUN_PRIMARY_SC; 11344 11345 /* 11346 * We send all I/O that was sent to this controller 11347 * and redirected to the other side back with 11348 * busy status, and have the initiator retry it. 11349 * Figuring out how much data has been transferred, 11350 * etc. and picking up where we left off would be 11351 * very tricky. 11352 * 11353 * XXX KDM need to remove I/O from the blocked 11354 * queue as well! 11355 */ 11356 for (pending_io = (union ctl_io *)TAILQ_FIRST( 11357 &lun->ooa_queue); pending_io != NULL; 11358 pending_io = next_io) { 11359 11360 next_io = (union ctl_io *)TAILQ_NEXT( 11361 &pending_io->io_hdr, ooa_links); 11362 11363 pending_io->io_hdr.flags &= 11364 ~CTL_FLAG_SENT_2OTHER_SC; 11365 11366 if (pending_io->io_hdr.flags & 11367 CTL_FLAG_IO_ACTIVE) { 11368 pending_io->io_hdr.flags |= 11369 CTL_FLAG_FAILOVER; 11370 } else { 11371 ctl_set_busy(&pending_io->scsiio); 11372 ctl_done(pending_io); 11373 } 11374 } 11375 11376 /* 11377 * Build Unit Attention 11378 */ 11379 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11380 lun->pending_ua[i] |= 11381 CTL_UA_ASYM_ACC_CHANGE; 11382 } 11383 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11384 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11385 printf("FAILOVER: secondary lun %d\n", lun_idx); 11386 /* 11387 * if the first io on the OOA is not on the RtR queue 11388 * add it. 11389 */ 11390 lun->flags |= CTL_LUN_PRIMARY_SC; 11391 11392 pending_io = (union ctl_io *)TAILQ_FIRST( 11393 &lun->ooa_queue); 11394 if (pending_io==NULL) { 11395 printf("Nothing on OOA queue\n"); 11396 continue; 11397 } 11398 11399 pending_io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11400 if ((pending_io->io_hdr.flags & 11401 CTL_FLAG_IS_WAS_ON_RTR) == 0) { 11402 pending_io->io_hdr.flags |= 11403 CTL_FLAG_IS_WAS_ON_RTR; 11404 ctl_enqueue_rtr(pending_io); 11405 } 11406#if 0 11407 else 11408 { 11409 printf("Tag 0x%04x is running\n", 11410 pending_io->scsiio.tag_num); 11411 } 11412#endif 11413 11414 next_io = (union ctl_io *)TAILQ_NEXT( 11415 &pending_io->io_hdr, ooa_links); 11416 for (pending_io=next_io; pending_io != NULL; 11417 pending_io = next_io) { 11418 pending_io->io_hdr.flags &= 11419 ~CTL_FLAG_SENT_2OTHER_SC; 11420 next_io = (union ctl_io *)TAILQ_NEXT( 11421 &pending_io->io_hdr, ooa_links); 11422 if (pending_io->io_hdr.flags & 11423 CTL_FLAG_IS_WAS_ON_RTR) { 11424#if 0 11425 printf("Tag 0x%04x is running\n", 11426 pending_io->scsiio.tag_num); 11427#endif 11428 continue; 11429 } 11430 11431 switch (ctl_check_ooa(lun, pending_io, 11432 (union ctl_io *)TAILQ_PREV( 11433 &pending_io->io_hdr, ctl_ooaq, 11434 ooa_links))) { 11435 11436 case CTL_ACTION_BLOCK: 11437 TAILQ_INSERT_TAIL(&lun->blocked_queue, 11438 &pending_io->io_hdr, 11439 blocked_links); 11440 pending_io->io_hdr.flags |= 11441 CTL_FLAG_BLOCKED; 11442 break; 11443 case CTL_ACTION_PASS: 11444 case CTL_ACTION_SKIP: 11445 pending_io->io_hdr.flags |= 11446 CTL_FLAG_IS_WAS_ON_RTR; 11447 ctl_enqueue_rtr(pending_io); 11448 break; 11449 case CTL_ACTION_OVERLAP: 11450 ctl_set_overlapped_cmd( 11451 (struct ctl_scsiio *)pending_io); 11452 ctl_done(pending_io); 11453 break; 11454 case CTL_ACTION_OVERLAP_TAG: 11455 ctl_set_overlapped_tag( 11456 (struct ctl_scsiio *)pending_io, 11457 pending_io->scsiio.tag_num & 0xff); 11458 ctl_done(pending_io); 11459 break; 11460 case CTL_ACTION_ERROR: 11461 default: 11462 ctl_set_internal_failure( 11463 (struct ctl_scsiio *)pending_io, 11464 0, // sks_valid 11465 0); //retry count 11466 ctl_done(pending_io); 11467 break; 11468 } 11469 } 11470 11471 /* 11472 * Build Unit Attention 11473 */ 11474 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11475 lun->pending_ua[i] |= 11476 CTL_UA_ASYM_ACC_CHANGE; 11477 } 11478 } else { 11479 panic("Unhandled HA mode failover, LUN flags = %#x, " 11480 "ha_mode = #%x", lun->flags, ctl_softc->ha_mode); 11481 } 11482 } 11483 ctl_pause_rtr = 0; 11484 mtx_unlock(&ctl_softc->ctl_lock); 11485} 11486 11487static int 11488ctl_scsiio_precheck(struct ctl_softc *ctl_softc, struct ctl_scsiio *ctsio) 11489{ 11490 struct ctl_lun *lun; 11491 const struct ctl_cmd_entry *entry; 11492 uint32_t initidx, targ_lun; 11493 int retval; 11494 11495 retval = 0; 11496 11497 lun = NULL; 11498 11499 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11500 if ((targ_lun < CTL_MAX_LUNS) 11501 && ((lun = ctl_softc->ctl_luns[targ_lun]) != NULL)) { 11502 /* 11503 * If the LUN is invalid, pretend that it doesn't exist. 11504 * It will go away as soon as all pending I/O has been 11505 * completed. 11506 */ 11507 mtx_lock(&lun->lun_lock); 11508 if (lun->flags & CTL_LUN_DISABLED) { 11509 mtx_unlock(&lun->lun_lock); 11510 lun = NULL; 11511 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11512 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11513 } else { 11514 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11515 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11516 lun->be_lun; 11517 if (lun->be_lun->lun_type == T_PROCESSOR) { 11518 ctsio->io_hdr.flags |= CTL_FLAG_CONTROL_DEV; 11519 } 11520 11521 /* 11522 * Every I/O goes into the OOA queue for a 11523 * particular LUN, and stays there until completion. 11524 */ 11525 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11526 ooa_links); 11527 } 11528 } else { 11529 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11530 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11531 } 11532 11533 /* Get command entry and return error if it is unsuppotyed. */ 11534 entry = ctl_validate_command(ctsio); 11535 if (entry == NULL) { 11536 if (lun) 11537 mtx_unlock(&lun->lun_lock); 11538 return (retval); 11539 } 11540 11541 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11542 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11543 11544 /* 11545 * Check to see whether we can send this command to LUNs that don't 11546 * exist. This should pretty much only be the case for inquiry 11547 * and request sense. Further checks, below, really require having 11548 * a LUN, so we can't really check the command anymore. Just put 11549 * it on the rtr queue. 11550 */ 11551 if (lun == NULL) { 11552 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) { 11553 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11554 ctl_enqueue_rtr((union ctl_io *)ctsio); 11555 return (retval); 11556 } 11557 11558 ctl_set_unsupported_lun(ctsio); 11559 ctl_done((union ctl_io *)ctsio); 11560 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11561 return (retval); 11562 } else { 11563 /* 11564 * Make sure we support this particular command on this LUN. 11565 * e.g., we don't support writes to the control LUN. 11566 */ 11567 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11568 mtx_unlock(&lun->lun_lock); 11569 ctl_set_invalid_opcode(ctsio); 11570 ctl_done((union ctl_io *)ctsio); 11571 return (retval); 11572 } 11573 } 11574 11575 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11576 11577#ifdef CTL_WITH_CA 11578 /* 11579 * If we've got a request sense, it'll clear the contingent 11580 * allegiance condition. Otherwise, if we have a CA condition for 11581 * this initiator, clear it, because it sent down a command other 11582 * than request sense. 11583 */ 11584 if ((ctsio->cdb[0] != REQUEST_SENSE) 11585 && (ctl_is_set(lun->have_ca, initidx))) 11586 ctl_clear_mask(lun->have_ca, initidx); 11587#endif 11588 11589 /* 11590 * If the command has this flag set, it handles its own unit 11591 * attention reporting, we shouldn't do anything. Otherwise we 11592 * check for any pending unit attentions, and send them back to the 11593 * initiator. We only do this when a command initially comes in, 11594 * not when we pull it off the blocked queue. 11595 * 11596 * According to SAM-3, section 5.3.2, the order that things get 11597 * presented back to the host is basically unit attentions caused 11598 * by some sort of reset event, busy status, reservation conflicts 11599 * or task set full, and finally any other status. 11600 * 11601 * One issue here is that some of the unit attentions we report 11602 * don't fall into the "reset" category (e.g. "reported luns data 11603 * has changed"). So reporting it here, before the reservation 11604 * check, may be technically wrong. I guess the only thing to do 11605 * would be to check for and report the reset events here, and then 11606 * check for the other unit attention types after we check for a 11607 * reservation conflict. 11608 * 11609 * XXX KDM need to fix this 11610 */ 11611 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11612 ctl_ua_type ua_type; 11613 11614 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 11615 scsi_sense_data_type sense_format; 11616 11617 if (lun != NULL) 11618 sense_format = (lun->flags & 11619 CTL_LUN_SENSE_DESC) ? SSD_TYPE_DESC : 11620 SSD_TYPE_FIXED; 11621 else 11622 sense_format = SSD_TYPE_FIXED; 11623 11624 ua_type = ctl_build_ua(&lun->pending_ua[initidx], 11625 &ctsio->sense_data, sense_format); 11626 if (ua_type != CTL_UA_NONE) { 11627 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11628 ctsio->io_hdr.status = CTL_SCSI_ERROR | 11629 CTL_AUTOSENSE; 11630 ctsio->sense_len = SSD_FULL_SIZE; 11631 mtx_unlock(&lun->lun_lock); 11632 ctl_done((union ctl_io *)ctsio); 11633 return (retval); 11634 } 11635 } 11636 } 11637 11638 11639 if (ctl_scsiio_lun_check(ctl_softc, lun, entry, ctsio) != 0) { 11640 mtx_unlock(&lun->lun_lock); 11641 ctl_done((union ctl_io *)ctsio); 11642 return (retval); 11643 } 11644 11645 /* 11646 * XXX CHD this is where we want to send IO to other side if 11647 * this LUN is secondary on this SC. We will need to make a copy 11648 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11649 * the copy we send as FROM_OTHER. 11650 * We also need to stuff the address of the original IO so we can 11651 * find it easily. Something similar will need be done on the other 11652 * side so when we are done we can find the copy. 11653 */ 11654 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11655 union ctl_ha_msg msg_info; 11656 int isc_retval; 11657 11658 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11659 11660 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11661 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11662#if 0 11663 printf("1. ctsio %p\n", ctsio); 11664#endif 11665 msg_info.hdr.serializing_sc = NULL; 11666 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11667 msg_info.scsi.tag_num = ctsio->tag_num; 11668 msg_info.scsi.tag_type = ctsio->tag_type; 11669 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11670 11671 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11672 11673 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11674 (void *)&msg_info, sizeof(msg_info), 0)) > 11675 CTL_HA_STATUS_SUCCESS) { 11676 printf("CTL:precheck, ctl_ha_msg_send returned %d\n", 11677 isc_retval); 11678 printf("CTL:opcode is %x\n", ctsio->cdb[0]); 11679 } else { 11680#if 0 11681 printf("CTL:Precheck sent msg, opcode is %x\n",opcode); 11682#endif 11683 } 11684 11685 /* 11686 * XXX KDM this I/O is off the incoming queue, but hasn't 11687 * been inserted on any other queue. We may need to come 11688 * up with a holding queue while we wait for serialization 11689 * so that we have an idea of what we're waiting for from 11690 * the other side. 11691 */ 11692 mtx_unlock(&lun->lun_lock); 11693 return (retval); 11694 } 11695 11696 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11697 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11698 ctl_ooaq, ooa_links))) { 11699 case CTL_ACTION_BLOCK: 11700 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11701 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11702 blocked_links); 11703 mtx_unlock(&lun->lun_lock); 11704 return (retval); 11705 case CTL_ACTION_PASS: 11706 case CTL_ACTION_SKIP: 11707 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11708 mtx_unlock(&lun->lun_lock); 11709 ctl_enqueue_rtr((union ctl_io *)ctsio); 11710 break; 11711 case CTL_ACTION_OVERLAP: 11712 mtx_unlock(&lun->lun_lock); 11713 ctl_set_overlapped_cmd(ctsio); 11714 ctl_done((union ctl_io *)ctsio); 11715 break; 11716 case CTL_ACTION_OVERLAP_TAG: 11717 mtx_unlock(&lun->lun_lock); 11718 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11719 ctl_done((union ctl_io *)ctsio); 11720 break; 11721 case CTL_ACTION_ERROR: 11722 default: 11723 mtx_unlock(&lun->lun_lock); 11724 ctl_set_internal_failure(ctsio, 11725 /*sks_valid*/ 0, 11726 /*retry_count*/ 0); 11727 ctl_done((union ctl_io *)ctsio); 11728 break; 11729 } 11730 return (retval); 11731} 11732 11733const struct ctl_cmd_entry * 11734ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11735{ 11736 const struct ctl_cmd_entry *entry; 11737 int service_action; 11738 11739 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11740 if (sa) 11741 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11742 if (entry->flags & CTL_CMD_FLAG_SA5) { 11743 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11744 entry = &((const struct ctl_cmd_entry *) 11745 entry->execute)[service_action]; 11746 } 11747 return (entry); 11748} 11749 11750const struct ctl_cmd_entry * 11751ctl_validate_command(struct ctl_scsiio *ctsio) 11752{ 11753 const struct ctl_cmd_entry *entry; 11754 int i, sa; 11755 uint8_t diff; 11756 11757 entry = ctl_get_cmd_entry(ctsio, &sa); 11758 if (entry->execute == NULL) { 11759 if (sa) 11760 ctl_set_invalid_field(ctsio, 11761 /*sks_valid*/ 1, 11762 /*command*/ 1, 11763 /*field*/ 1, 11764 /*bit_valid*/ 1, 11765 /*bit*/ 4); 11766 else 11767 ctl_set_invalid_opcode(ctsio); 11768 ctl_done((union ctl_io *)ctsio); 11769 return (NULL); 11770 } 11771 KASSERT(entry->length > 0, 11772 ("Not defined length for command 0x%02x/0x%02x", 11773 ctsio->cdb[0], ctsio->cdb[1])); 11774 for (i = 1; i < entry->length; i++) { 11775 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11776 if (diff == 0) 11777 continue; 11778 ctl_set_invalid_field(ctsio, 11779 /*sks_valid*/ 1, 11780 /*command*/ 1, 11781 /*field*/ i, 11782 /*bit_valid*/ 1, 11783 /*bit*/ fls(diff) - 1); 11784 ctl_done((union ctl_io *)ctsio); 11785 return (NULL); 11786 } 11787 return (entry); 11788} 11789 11790static int 11791ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11792{ 11793 11794 switch (lun_type) { 11795 case T_PROCESSOR: 11796 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) && 11797 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11798 return (0); 11799 break; 11800 case T_DIRECT: 11801 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) && 11802 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11803 return (0); 11804 break; 11805 default: 11806 return (0); 11807 } 11808 return (1); 11809} 11810 11811static int 11812ctl_scsiio(struct ctl_scsiio *ctsio) 11813{ 11814 int retval; 11815 const struct ctl_cmd_entry *entry; 11816 11817 retval = CTL_RETVAL_COMPLETE; 11818 11819 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11820 11821 entry = ctl_get_cmd_entry(ctsio, NULL); 11822 11823 /* 11824 * If this I/O has been aborted, just send it straight to 11825 * ctl_done() without executing it. 11826 */ 11827 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11828 ctl_done((union ctl_io *)ctsio); 11829 goto bailout; 11830 } 11831 11832 /* 11833 * All the checks should have been handled by ctl_scsiio_precheck(). 11834 * We should be clear now to just execute the I/O. 11835 */ 11836 retval = entry->execute(ctsio); 11837 11838bailout: 11839 return (retval); 11840} 11841 11842/* 11843 * Since we only implement one target right now, a bus reset simply resets 11844 * our single target. 11845 */ 11846static int 11847ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io) 11848{ 11849 return(ctl_target_reset(ctl_softc, io, CTL_UA_BUS_RESET)); 11850} 11851 11852static int 11853ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 11854 ctl_ua_type ua_type) 11855{ 11856 struct ctl_lun *lun; 11857 int retval; 11858 11859 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11860 union ctl_ha_msg msg_info; 11861 11862 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11863 msg_info.hdr.nexus = io->io_hdr.nexus; 11864 if (ua_type==CTL_UA_TARG_RESET) 11865 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11866 else 11867 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11868 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11869 msg_info.hdr.original_sc = NULL; 11870 msg_info.hdr.serializing_sc = NULL; 11871 if (CTL_HA_STATUS_SUCCESS != ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11872 (void *)&msg_info, sizeof(msg_info), 0)) { 11873 } 11874 } 11875 retval = 0; 11876 11877 mtx_lock(&ctl_softc->ctl_lock); 11878 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) 11879 retval += ctl_lun_reset(lun, io, ua_type); 11880 mtx_unlock(&ctl_softc->ctl_lock); 11881 11882 return (retval); 11883} 11884 11885/* 11886 * The LUN should always be set. The I/O is optional, and is used to 11887 * distinguish between I/Os sent by this initiator, and by other 11888 * initiators. We set unit attention for initiators other than this one. 11889 * SAM-3 is vague on this point. It does say that a unit attention should 11890 * be established for other initiators when a LUN is reset (see section 11891 * 5.7.3), but it doesn't specifically say that the unit attention should 11892 * be established for this particular initiator when a LUN is reset. Here 11893 * is the relevant text, from SAM-3 rev 8: 11894 * 11895 * 5.7.2 When a SCSI initiator port aborts its own tasks 11896 * 11897 * When a SCSI initiator port causes its own task(s) to be aborted, no 11898 * notification that the task(s) have been aborted shall be returned to 11899 * the SCSI initiator port other than the completion response for the 11900 * command or task management function action that caused the task(s) to 11901 * be aborted and notification(s) associated with related effects of the 11902 * action (e.g., a reset unit attention condition). 11903 * 11904 * XXX KDM for now, we're setting unit attention for all initiators. 11905 */ 11906static int 11907ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11908{ 11909 union ctl_io *xio; 11910#if 0 11911 uint32_t initindex; 11912#endif 11913 int i; 11914 11915 mtx_lock(&lun->lun_lock); 11916 /* 11917 * Run through the OOA queue and abort each I/O. 11918 */ 11919#if 0 11920 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 11921#endif 11922 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11923 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11924 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11925 } 11926 11927 /* 11928 * This version sets unit attention for every 11929 */ 11930#if 0 11931 initindex = ctl_get_initindex(&io->io_hdr.nexus); 11932 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11933 if (initindex == i) 11934 continue; 11935 lun->pending_ua[i] |= ua_type; 11936 } 11937#endif 11938 11939 /* 11940 * A reset (any kind, really) clears reservations established with 11941 * RESERVE/RELEASE. It does not clear reservations established 11942 * with PERSISTENT RESERVE OUT, but we don't support that at the 11943 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11944 * reservations made with the RESERVE/RELEASE commands, because 11945 * those commands are obsolete in SPC-3. 11946 */ 11947 lun->flags &= ~CTL_LUN_RESERVED; 11948 11949 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11950#ifdef CTL_WITH_CA 11951 ctl_clear_mask(lun->have_ca, i); 11952#endif 11953 lun->pending_ua[i] |= ua_type; 11954 } 11955 mtx_unlock(&lun->lun_lock); 11956 11957 return (0); 11958} 11959 11960static void 11961ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11962 int other_sc) 11963{ 11964 union ctl_io *xio; 11965 11966 mtx_assert(&lun->lun_lock, MA_OWNED); 11967 11968 /* 11969 * Run through the OOA queue and attempt to find the given I/O. 11970 * The target port, initiator ID, tag type and tag number have to 11971 * match the values that we got from the initiator. If we have an 11972 * untagged command to abort, simply abort the first untagged command 11973 * we come to. We only allow one untagged command at a time of course. 11974 */ 11975 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11976 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11977 11978 if ((targ_port == UINT32_MAX || 11979 targ_port == xio->io_hdr.nexus.targ_port) && 11980 (init_id == UINT32_MAX || 11981 init_id == xio->io_hdr.nexus.initid.id)) { 11982 if (targ_port != xio->io_hdr.nexus.targ_port || 11983 init_id != xio->io_hdr.nexus.initid.id) 11984 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 11985 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11986 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11987 union ctl_ha_msg msg_info; 11988 11989 msg_info.hdr.nexus = xio->io_hdr.nexus; 11990 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 11991 msg_info.task.tag_num = xio->scsiio.tag_num; 11992 msg_info.task.tag_type = xio->scsiio.tag_type; 11993 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11994 msg_info.hdr.original_sc = NULL; 11995 msg_info.hdr.serializing_sc = NULL; 11996 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11997 (void *)&msg_info, sizeof(msg_info), 0); 11998 } 11999 } 12000 } 12001} 12002 12003static int 12004ctl_abort_task_set(union ctl_io *io) 12005{ 12006 struct ctl_softc *softc = control_softc; 12007 struct ctl_lun *lun; 12008 uint32_t targ_lun; 12009 12010 /* 12011 * Look up the LUN. 12012 */ 12013 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12014 mtx_lock(&softc->ctl_lock); 12015 if ((targ_lun < CTL_MAX_LUNS) && (softc->ctl_luns[targ_lun] != NULL)) 12016 lun = softc->ctl_luns[targ_lun]; 12017 else { 12018 mtx_unlock(&softc->ctl_lock); 12019 return (1); 12020 } 12021 12022 mtx_lock(&lun->lun_lock); 12023 mtx_unlock(&softc->ctl_lock); 12024 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 12025 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12026 io->io_hdr.nexus.initid.id, 12027 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12028 } else { /* CTL_TASK_CLEAR_TASK_SET */ 12029 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 12030 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12031 } 12032 mtx_unlock(&lun->lun_lock); 12033 return (0); 12034} 12035 12036static int 12037ctl_i_t_nexus_reset(union ctl_io *io) 12038{ 12039 struct ctl_softc *softc = control_softc; 12040 struct ctl_lun *lun; 12041 uint32_t initindex, residx; 12042 12043 initindex = ctl_get_initindex(&io->io_hdr.nexus); 12044 residx = ctl_get_resindex(&io->io_hdr.nexus); 12045 mtx_lock(&softc->ctl_lock); 12046 STAILQ_FOREACH(lun, &softc->lun_list, links) { 12047 mtx_lock(&lun->lun_lock); 12048 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12049 io->io_hdr.nexus.initid.id, 12050 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12051#ifdef CTL_WITH_CA 12052 ctl_clear_mask(lun->have_ca, initindex); 12053#endif 12054 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 12055 lun->flags &= ~CTL_LUN_RESERVED; 12056 lun->pending_ua[initindex] |= CTL_UA_I_T_NEXUS_LOSS; 12057 mtx_unlock(&lun->lun_lock); 12058 } 12059 mtx_unlock(&softc->ctl_lock); 12060 return (0); 12061} 12062 12063static int 12064ctl_abort_task(union ctl_io *io) 12065{ 12066 union ctl_io *xio; 12067 struct ctl_lun *lun; 12068 struct ctl_softc *ctl_softc; 12069#if 0 12070 struct sbuf sb; 12071 char printbuf[128]; 12072#endif 12073 int found; 12074 uint32_t targ_lun; 12075 12076 ctl_softc = control_softc; 12077 found = 0; 12078 12079 /* 12080 * Look up the LUN. 12081 */ 12082 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12083 mtx_lock(&ctl_softc->ctl_lock); 12084 if ((targ_lun < CTL_MAX_LUNS) 12085 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12086 lun = ctl_softc->ctl_luns[targ_lun]; 12087 else { 12088 mtx_unlock(&ctl_softc->ctl_lock); 12089 return (1); 12090 } 12091 12092#if 0 12093 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12094 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12095#endif 12096 12097 mtx_lock(&lun->lun_lock); 12098 mtx_unlock(&ctl_softc->ctl_lock); 12099 /* 12100 * Run through the OOA queue and attempt to find the given I/O. 12101 * The target port, initiator ID, tag type and tag number have to 12102 * match the values that we got from the initiator. If we have an 12103 * untagged command to abort, simply abort the first untagged command 12104 * we come to. We only allow one untagged command at a time of course. 12105 */ 12106#if 0 12107 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12108#endif 12109 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12110 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12111#if 0 12112 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12113 12114 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12115 lun->lun, xio->scsiio.tag_num, 12116 xio->scsiio.tag_type, 12117 (xio->io_hdr.blocked_links.tqe_prev 12118 == NULL) ? "" : " BLOCKED", 12119 (xio->io_hdr.flags & 12120 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12121 (xio->io_hdr.flags & 12122 CTL_FLAG_ABORT) ? " ABORT" : "", 12123 (xio->io_hdr.flags & 12124 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12125 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12126 sbuf_finish(&sb); 12127 printf("%s\n", sbuf_data(&sb)); 12128#endif 12129 12130 if ((xio->io_hdr.nexus.targ_port == io->io_hdr.nexus.targ_port) 12131 && (xio->io_hdr.nexus.initid.id == 12132 io->io_hdr.nexus.initid.id)) { 12133 /* 12134 * If the abort says that the task is untagged, the 12135 * task in the queue must be untagged. Otherwise, 12136 * we just check to see whether the tag numbers 12137 * match. This is because the QLogic firmware 12138 * doesn't pass back the tag type in an abort 12139 * request. 12140 */ 12141#if 0 12142 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12143 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12144 || (xio->scsiio.tag_num == io->taskio.tag_num)) { 12145#endif 12146 /* 12147 * XXX KDM we've got problems with FC, because it 12148 * doesn't send down a tag type with aborts. So we 12149 * can only really go by the tag number... 12150 * This may cause problems with parallel SCSI. 12151 * Need to figure that out!! 12152 */ 12153 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12154 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12155 found = 1; 12156 if ((io->io_hdr.flags & 12157 CTL_FLAG_FROM_OTHER_SC) == 0 && 12158 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12159 union ctl_ha_msg msg_info; 12160 12161 io->io_hdr.flags |= 12162 CTL_FLAG_SENT_2OTHER_SC; 12163 msg_info.hdr.nexus = io->io_hdr.nexus; 12164 msg_info.task.task_action = 12165 CTL_TASK_ABORT_TASK; 12166 msg_info.task.tag_num = 12167 io->taskio.tag_num; 12168 msg_info.task.tag_type = 12169 io->taskio.tag_type; 12170 msg_info.hdr.msg_type = 12171 CTL_MSG_MANAGE_TASKS; 12172 msg_info.hdr.original_sc = NULL; 12173 msg_info.hdr.serializing_sc = NULL; 12174#if 0 12175 printf("Sent Abort to other side\n"); 12176#endif 12177 if (CTL_HA_STATUS_SUCCESS != 12178 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12179 (void *)&msg_info, 12180 sizeof(msg_info), 0)) { 12181 } 12182 } 12183#if 0 12184 printf("ctl_abort_task: found I/O to abort\n"); 12185#endif 12186 break; 12187 } 12188 } 12189 } 12190 mtx_unlock(&lun->lun_lock); 12191 12192 if (found == 0) { 12193 /* 12194 * This isn't really an error. It's entirely possible for 12195 * the abort and command completion to cross on the wire. 12196 * This is more of an informative/diagnostic error. 12197 */ 12198#if 0 12199 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12200 "%d:%d:%d:%d tag %d type %d\n", 12201 io->io_hdr.nexus.initid.id, 12202 io->io_hdr.nexus.targ_port, 12203 io->io_hdr.nexus.targ_target.id, 12204 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12205 io->taskio.tag_type); 12206#endif 12207 } 12208 return (0); 12209} 12210 12211static void 12212ctl_run_task(union ctl_io *io) 12213{ 12214 struct ctl_softc *ctl_softc = control_softc; 12215 int retval = 1; 12216 const char *task_desc; 12217 12218 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12219 12220 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12221 ("ctl_run_task: Unextected io_type %d\n", 12222 io->io_hdr.io_type)); 12223 12224 task_desc = ctl_scsi_task_string(&io->taskio); 12225 if (task_desc != NULL) { 12226#ifdef NEEDTOPORT 12227 csevent_log(CSC_CTL | CSC_SHELF_SW | 12228 CTL_TASK_REPORT, 12229 csevent_LogType_Trace, 12230 csevent_Severity_Information, 12231 csevent_AlertLevel_Green, 12232 csevent_FRU_Firmware, 12233 csevent_FRU_Unknown, 12234 "CTL: received task: %s",task_desc); 12235#endif 12236 } else { 12237#ifdef NEEDTOPORT 12238 csevent_log(CSC_CTL | CSC_SHELF_SW | 12239 CTL_TASK_REPORT, 12240 csevent_LogType_Trace, 12241 csevent_Severity_Information, 12242 csevent_AlertLevel_Green, 12243 csevent_FRU_Firmware, 12244 csevent_FRU_Unknown, 12245 "CTL: received unknown task " 12246 "type: %d (%#x)", 12247 io->taskio.task_action, 12248 io->taskio.task_action); 12249#endif 12250 } 12251 switch (io->taskio.task_action) { 12252 case CTL_TASK_ABORT_TASK: 12253 retval = ctl_abort_task(io); 12254 break; 12255 case CTL_TASK_ABORT_TASK_SET: 12256 case CTL_TASK_CLEAR_TASK_SET: 12257 retval = ctl_abort_task_set(io); 12258 break; 12259 case CTL_TASK_CLEAR_ACA: 12260 break; 12261 case CTL_TASK_I_T_NEXUS_RESET: 12262 retval = ctl_i_t_nexus_reset(io); 12263 break; 12264 case CTL_TASK_LUN_RESET: { 12265 struct ctl_lun *lun; 12266 uint32_t targ_lun; 12267 12268 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12269 mtx_lock(&ctl_softc->ctl_lock); 12270 if ((targ_lun < CTL_MAX_LUNS) 12271 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12272 lun = ctl_softc->ctl_luns[targ_lun]; 12273 else { 12274 mtx_unlock(&ctl_softc->ctl_lock); 12275 retval = 1; 12276 break; 12277 } 12278 12279 if (!(io->io_hdr.flags & 12280 CTL_FLAG_FROM_OTHER_SC)) { 12281 union ctl_ha_msg msg_info; 12282 12283 io->io_hdr.flags |= 12284 CTL_FLAG_SENT_2OTHER_SC; 12285 msg_info.hdr.msg_type = 12286 CTL_MSG_MANAGE_TASKS; 12287 msg_info.hdr.nexus = io->io_hdr.nexus; 12288 msg_info.task.task_action = 12289 CTL_TASK_LUN_RESET; 12290 msg_info.hdr.original_sc = NULL; 12291 msg_info.hdr.serializing_sc = NULL; 12292 if (CTL_HA_STATUS_SUCCESS != 12293 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12294 (void *)&msg_info, 12295 sizeof(msg_info), 0)) { 12296 } 12297 } 12298 12299 retval = ctl_lun_reset(lun, io, 12300 CTL_UA_LUN_RESET); 12301 mtx_unlock(&ctl_softc->ctl_lock); 12302 break; 12303 } 12304 case CTL_TASK_TARGET_RESET: 12305 retval = ctl_target_reset(ctl_softc, io, CTL_UA_TARG_RESET); 12306 break; 12307 case CTL_TASK_BUS_RESET: 12308 retval = ctl_bus_reset(ctl_softc, io); 12309 break; 12310 case CTL_TASK_PORT_LOGIN: 12311 break; 12312 case CTL_TASK_PORT_LOGOUT: 12313 break; 12314 default: 12315 printf("ctl_run_task: got unknown task management event %d\n", 12316 io->taskio.task_action); 12317 break; 12318 } 12319 if (retval == 0) 12320 io->io_hdr.status = CTL_SUCCESS; 12321 else 12322 io->io_hdr.status = CTL_ERROR; 12323 ctl_done(io); 12324} 12325 12326/* 12327 * For HA operation. Handle commands that come in from the other 12328 * controller. 12329 */ 12330static void 12331ctl_handle_isc(union ctl_io *io) 12332{ 12333 int free_io; 12334 struct ctl_lun *lun; 12335 struct ctl_softc *ctl_softc; 12336 uint32_t targ_lun; 12337 12338 ctl_softc = control_softc; 12339 12340 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12341 lun = ctl_softc->ctl_luns[targ_lun]; 12342 12343 switch (io->io_hdr.msg_type) { 12344 case CTL_MSG_SERIALIZE: 12345 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12346 break; 12347 case CTL_MSG_R2R: { 12348 const struct ctl_cmd_entry *entry; 12349 12350 /* 12351 * This is only used in SER_ONLY mode. 12352 */ 12353 free_io = 0; 12354 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12355 mtx_lock(&lun->lun_lock); 12356 if (ctl_scsiio_lun_check(ctl_softc, lun, 12357 entry, (struct ctl_scsiio *)io) != 0) { 12358 mtx_unlock(&lun->lun_lock); 12359 ctl_done(io); 12360 break; 12361 } 12362 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12363 mtx_unlock(&lun->lun_lock); 12364 ctl_enqueue_rtr(io); 12365 break; 12366 } 12367 case CTL_MSG_FINISH_IO: 12368 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 12369 free_io = 0; 12370 ctl_done(io); 12371 } else { 12372 free_io = 1; 12373 mtx_lock(&lun->lun_lock); 12374 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12375 ooa_links); 12376 ctl_check_blocked(lun); 12377 mtx_unlock(&lun->lun_lock); 12378 } 12379 break; 12380 case CTL_MSG_PERS_ACTION: 12381 ctl_hndl_per_res_out_on_other_sc( 12382 (union ctl_ha_msg *)&io->presio.pr_msg); 12383 free_io = 1; 12384 break; 12385 case CTL_MSG_BAD_JUJU: 12386 free_io = 0; 12387 ctl_done(io); 12388 break; 12389 case CTL_MSG_DATAMOVE: 12390 /* Only used in XFER mode */ 12391 free_io = 0; 12392 ctl_datamove_remote(io); 12393 break; 12394 case CTL_MSG_DATAMOVE_DONE: 12395 /* Only used in XFER mode */ 12396 free_io = 0; 12397 io->scsiio.be_move_done(io); 12398 break; 12399 default: 12400 free_io = 1; 12401 printf("%s: Invalid message type %d\n", 12402 __func__, io->io_hdr.msg_type); 12403 break; 12404 } 12405 if (free_io) 12406 ctl_free_io(io); 12407 12408} 12409 12410 12411/* 12412 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12413 * there is no match. 12414 */ 12415static ctl_lun_error_pattern 12416ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12417{ 12418 const struct ctl_cmd_entry *entry; 12419 ctl_lun_error_pattern filtered_pattern, pattern; 12420 12421 pattern = desc->error_pattern; 12422 12423 /* 12424 * XXX KDM we need more data passed into this function to match a 12425 * custom pattern, and we actually need to implement custom pattern 12426 * matching. 12427 */ 12428 if (pattern & CTL_LUN_PAT_CMD) 12429 return (CTL_LUN_PAT_CMD); 12430 12431 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12432 return (CTL_LUN_PAT_ANY); 12433 12434 entry = ctl_get_cmd_entry(ctsio, NULL); 12435 12436 filtered_pattern = entry->pattern & pattern; 12437 12438 /* 12439 * If the user requested specific flags in the pattern (e.g. 12440 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12441 * flags. 12442 * 12443 * If the user did not specify any flags, it doesn't matter whether 12444 * or not the command supports the flags. 12445 */ 12446 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12447 (pattern & ~CTL_LUN_PAT_MASK)) 12448 return (CTL_LUN_PAT_NONE); 12449 12450 /* 12451 * If the user asked for a range check, see if the requested LBA 12452 * range overlaps with this command's LBA range. 12453 */ 12454 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12455 uint64_t lba1; 12456 uint64_t len1; 12457 ctl_action action; 12458 int retval; 12459 12460 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12461 if (retval != 0) 12462 return (CTL_LUN_PAT_NONE); 12463 12464 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12465 desc->lba_range.len); 12466 /* 12467 * A "pass" means that the LBA ranges don't overlap, so 12468 * this doesn't match the user's range criteria. 12469 */ 12470 if (action == CTL_ACTION_PASS) 12471 return (CTL_LUN_PAT_NONE); 12472 } 12473 12474 return (filtered_pattern); 12475} 12476 12477static void 12478ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12479{ 12480 struct ctl_error_desc *desc, *desc2; 12481 12482 mtx_assert(&lun->lun_lock, MA_OWNED); 12483 12484 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12485 ctl_lun_error_pattern pattern; 12486 /* 12487 * Check to see whether this particular command matches 12488 * the pattern in the descriptor. 12489 */ 12490 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12491 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12492 continue; 12493 12494 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12495 case CTL_LUN_INJ_ABORTED: 12496 ctl_set_aborted(&io->scsiio); 12497 break; 12498 case CTL_LUN_INJ_MEDIUM_ERR: 12499 ctl_set_medium_error(&io->scsiio); 12500 break; 12501 case CTL_LUN_INJ_UA: 12502 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12503 * OCCURRED */ 12504 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12505 break; 12506 case CTL_LUN_INJ_CUSTOM: 12507 /* 12508 * We're assuming the user knows what he is doing. 12509 * Just copy the sense information without doing 12510 * checks. 12511 */ 12512 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12513 ctl_min(sizeof(desc->custom_sense), 12514 sizeof(io->scsiio.sense_data))); 12515 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12516 io->scsiio.sense_len = SSD_FULL_SIZE; 12517 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12518 break; 12519 case CTL_LUN_INJ_NONE: 12520 default: 12521 /* 12522 * If this is an error injection type we don't know 12523 * about, clear the continuous flag (if it is set) 12524 * so it will get deleted below. 12525 */ 12526 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12527 break; 12528 } 12529 /* 12530 * By default, each error injection action is a one-shot 12531 */ 12532 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12533 continue; 12534 12535 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12536 12537 free(desc, M_CTL); 12538 } 12539} 12540 12541#ifdef CTL_IO_DELAY 12542static void 12543ctl_datamove_timer_wakeup(void *arg) 12544{ 12545 union ctl_io *io; 12546 12547 io = (union ctl_io *)arg; 12548 12549 ctl_datamove(io); 12550} 12551#endif /* CTL_IO_DELAY */ 12552 12553void 12554ctl_datamove(union ctl_io *io) 12555{ 12556 void (*fe_datamove)(union ctl_io *io); 12557 12558 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12559 12560 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12561 12562#ifdef CTL_TIME_IO 12563 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12564 char str[256]; 12565 char path_str[64]; 12566 struct sbuf sb; 12567 12568 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12569 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12570 12571 sbuf_cat(&sb, path_str); 12572 switch (io->io_hdr.io_type) { 12573 case CTL_IO_SCSI: 12574 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12575 sbuf_printf(&sb, "\n"); 12576 sbuf_cat(&sb, path_str); 12577 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12578 io->scsiio.tag_num, io->scsiio.tag_type); 12579 break; 12580 case CTL_IO_TASK: 12581 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12582 "Tag Type: %d\n", io->taskio.task_action, 12583 io->taskio.tag_num, io->taskio.tag_type); 12584 break; 12585 default: 12586 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12587 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12588 break; 12589 } 12590 sbuf_cat(&sb, path_str); 12591 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12592 (intmax_t)time_uptime - io->io_hdr.start_time); 12593 sbuf_finish(&sb); 12594 printf("%s", sbuf_data(&sb)); 12595 } 12596#endif /* CTL_TIME_IO */ 12597 12598#ifdef CTL_IO_DELAY 12599 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12600 struct ctl_lun *lun; 12601 12602 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12603 12604 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12605 } else { 12606 struct ctl_lun *lun; 12607 12608 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12609 if ((lun != NULL) 12610 && (lun->delay_info.datamove_delay > 0)) { 12611 struct callout *callout; 12612 12613 callout = (struct callout *)&io->io_hdr.timer_bytes; 12614 callout_init(callout, /*mpsafe*/ 1); 12615 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12616 callout_reset(callout, 12617 lun->delay_info.datamove_delay * hz, 12618 ctl_datamove_timer_wakeup, io); 12619 if (lun->delay_info.datamove_type == 12620 CTL_DELAY_TYPE_ONESHOT) 12621 lun->delay_info.datamove_delay = 0; 12622 return; 12623 } 12624 } 12625#endif 12626 12627 /* 12628 * This command has been aborted. Set the port status, so we fail 12629 * the data move. 12630 */ 12631 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12632 printf("ctl_datamove: tag 0x%04x on (%ju:%d:%ju:%d) aborted\n", 12633 io->scsiio.tag_num,(uintmax_t)io->io_hdr.nexus.initid.id, 12634 io->io_hdr.nexus.targ_port, 12635 (uintmax_t)io->io_hdr.nexus.targ_target.id, 12636 io->io_hdr.nexus.targ_lun); 12637 io->io_hdr.port_status = 31337; 12638 /* 12639 * Note that the backend, in this case, will get the 12640 * callback in its context. In other cases it may get 12641 * called in the frontend's interrupt thread context. 12642 */ 12643 io->scsiio.be_move_done(io); 12644 return; 12645 } 12646 12647 /* Don't confuse frontend with zero length data move. */ 12648 if (io->scsiio.kern_data_len == 0) { 12649 io->scsiio.be_move_done(io); 12650 return; 12651 } 12652 12653 /* 12654 * If we're in XFER mode and this I/O is from the other shelf 12655 * controller, we need to send the DMA to the other side to 12656 * actually transfer the data to/from the host. In serialize only 12657 * mode the transfer happens below CTL and ctl_datamove() is only 12658 * called on the machine that originally received the I/O. 12659 */ 12660 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12661 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12662 union ctl_ha_msg msg; 12663 uint32_t sg_entries_sent; 12664 int do_sg_copy; 12665 int i; 12666 12667 memset(&msg, 0, sizeof(msg)); 12668 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12669 msg.hdr.original_sc = io->io_hdr.original_sc; 12670 msg.hdr.serializing_sc = io; 12671 msg.hdr.nexus = io->io_hdr.nexus; 12672 msg.dt.flags = io->io_hdr.flags; 12673 /* 12674 * We convert everything into a S/G list here. We can't 12675 * pass by reference, only by value between controllers. 12676 * So we can't pass a pointer to the S/G list, only as many 12677 * S/G entries as we can fit in here. If it's possible for 12678 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12679 * then we need to break this up into multiple transfers. 12680 */ 12681 if (io->scsiio.kern_sg_entries == 0) { 12682 msg.dt.kern_sg_entries = 1; 12683 /* 12684 * If this is in cached memory, flush the cache 12685 * before we send the DMA request to the other 12686 * controller. We want to do this in either the 12687 * read or the write case. The read case is 12688 * straightforward. In the write case, we want to 12689 * make sure nothing is in the local cache that 12690 * could overwrite the DMAed data. 12691 */ 12692 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12693 /* 12694 * XXX KDM use bus_dmamap_sync() here. 12695 */ 12696 } 12697 12698 /* 12699 * Convert to a physical address if this is a 12700 * virtual address. 12701 */ 12702 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12703 msg.dt.sg_list[0].addr = 12704 io->scsiio.kern_data_ptr; 12705 } else { 12706 /* 12707 * XXX KDM use busdma here! 12708 */ 12709#if 0 12710 msg.dt.sg_list[0].addr = (void *) 12711 vtophys(io->scsiio.kern_data_ptr); 12712#endif 12713 } 12714 12715 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12716 do_sg_copy = 0; 12717 } else { 12718 struct ctl_sg_entry *sgl; 12719 12720 do_sg_copy = 1; 12721 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12722 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 12723 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12724 /* 12725 * XXX KDM use bus_dmamap_sync() here. 12726 */ 12727 } 12728 } 12729 12730 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12731 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12732 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12733 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12734 msg.dt.sg_sequence = 0; 12735 12736 /* 12737 * Loop until we've sent all of the S/G entries. On the 12738 * other end, we'll recompose these S/G entries into one 12739 * contiguous list before passing it to the 12740 */ 12741 for (sg_entries_sent = 0; sg_entries_sent < 12742 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12743 msg.dt.cur_sg_entries = ctl_min((sizeof(msg.dt.sg_list)/ 12744 sizeof(msg.dt.sg_list[0])), 12745 msg.dt.kern_sg_entries - sg_entries_sent); 12746 12747 if (do_sg_copy != 0) { 12748 struct ctl_sg_entry *sgl; 12749 int j; 12750 12751 sgl = (struct ctl_sg_entry *) 12752 io->scsiio.kern_data_ptr; 12753 /* 12754 * If this is in cached memory, flush the cache 12755 * before we send the DMA request to the other 12756 * controller. We want to do this in either 12757 * the * read or the write case. The read 12758 * case is straightforward. In the write 12759 * case, we want to make sure nothing is 12760 * in the local cache that could overwrite 12761 * the DMAed data. 12762 */ 12763 12764 for (i = sg_entries_sent, j = 0; 12765 i < msg.dt.cur_sg_entries; i++, j++) { 12766 if ((io->io_hdr.flags & 12767 CTL_FLAG_NO_DATASYNC) == 0) { 12768 /* 12769 * XXX KDM use bus_dmamap_sync() 12770 */ 12771 } 12772 if ((io->io_hdr.flags & 12773 CTL_FLAG_BUS_ADDR) == 0) { 12774 /* 12775 * XXX KDM use busdma. 12776 */ 12777#if 0 12778 msg.dt.sg_list[j].addr =(void *) 12779 vtophys(sgl[i].addr); 12780#endif 12781 } else { 12782 msg.dt.sg_list[j].addr = 12783 sgl[i].addr; 12784 } 12785 msg.dt.sg_list[j].len = sgl[i].len; 12786 } 12787 } 12788 12789 sg_entries_sent += msg.dt.cur_sg_entries; 12790 if (sg_entries_sent >= msg.dt.kern_sg_entries) 12791 msg.dt.sg_last = 1; 12792 else 12793 msg.dt.sg_last = 0; 12794 12795 /* 12796 * XXX KDM drop and reacquire the lock here? 12797 */ 12798 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12799 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 12800 /* 12801 * XXX do something here. 12802 */ 12803 } 12804 12805 msg.dt.sent_sg_entries = sg_entries_sent; 12806 } 12807 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12808 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) 12809 ctl_failover_io(io, /*have_lock*/ 0); 12810 12811 } else { 12812 12813 /* 12814 * Lookup the fe_datamove() function for this particular 12815 * front end. 12816 */ 12817 fe_datamove = 12818 control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12819 12820 fe_datamove(io); 12821 } 12822} 12823 12824static void 12825ctl_send_datamove_done(union ctl_io *io, int have_lock) 12826{ 12827 union ctl_ha_msg msg; 12828 int isc_status; 12829 12830 memset(&msg, 0, sizeof(msg)); 12831 12832 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12833 msg.hdr.original_sc = io; 12834 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12835 msg.hdr.nexus = io->io_hdr.nexus; 12836 msg.hdr.status = io->io_hdr.status; 12837 msg.scsi.tag_num = io->scsiio.tag_num; 12838 msg.scsi.tag_type = io->scsiio.tag_type; 12839 msg.scsi.scsi_status = io->scsiio.scsi_status; 12840 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12841 sizeof(io->scsiio.sense_data)); 12842 msg.scsi.sense_len = io->scsiio.sense_len; 12843 msg.scsi.sense_residual = io->scsiio.sense_residual; 12844 msg.scsi.fetd_status = io->io_hdr.port_status; 12845 msg.scsi.residual = io->scsiio.residual; 12846 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12847 12848 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12849 ctl_failover_io(io, /*have_lock*/ have_lock); 12850 return; 12851 } 12852 12853 isc_status = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0); 12854 if (isc_status > CTL_HA_STATUS_SUCCESS) { 12855 /* XXX do something if this fails */ 12856 } 12857 12858} 12859 12860/* 12861 * The DMA to the remote side is done, now we need to tell the other side 12862 * we're done so it can continue with its data movement. 12863 */ 12864static void 12865ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12866{ 12867 union ctl_io *io; 12868 12869 io = rq->context; 12870 12871 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12872 printf("%s: ISC DMA write failed with error %d", __func__, 12873 rq->ret); 12874 ctl_set_internal_failure(&io->scsiio, 12875 /*sks_valid*/ 1, 12876 /*retry_count*/ rq->ret); 12877 } 12878 12879 ctl_dt_req_free(rq); 12880 12881 /* 12882 * In this case, we had to malloc the memory locally. Free it. 12883 */ 12884 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12885 int i; 12886 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12887 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12888 } 12889 /* 12890 * The data is in local and remote memory, so now we need to send 12891 * status (good or back) back to the other side. 12892 */ 12893 ctl_send_datamove_done(io, /*have_lock*/ 0); 12894} 12895 12896/* 12897 * We've moved the data from the host/controller into local memory. Now we 12898 * need to push it over to the remote controller's memory. 12899 */ 12900static int 12901ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12902{ 12903 int retval; 12904 12905 retval = 0; 12906 12907 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12908 ctl_datamove_remote_write_cb); 12909 12910 return (retval); 12911} 12912 12913static void 12914ctl_datamove_remote_write(union ctl_io *io) 12915{ 12916 int retval; 12917 void (*fe_datamove)(union ctl_io *io); 12918 12919 /* 12920 * - Get the data from the host/HBA into local memory. 12921 * - DMA memory from the local controller to the remote controller. 12922 * - Send status back to the remote controller. 12923 */ 12924 12925 retval = ctl_datamove_remote_sgl_setup(io); 12926 if (retval != 0) 12927 return; 12928 12929 /* Switch the pointer over so the FETD knows what to do */ 12930 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12931 12932 /* 12933 * Use a custom move done callback, since we need to send completion 12934 * back to the other controller, not to the backend on this side. 12935 */ 12936 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12937 12938 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12939 12940 fe_datamove(io); 12941 12942 return; 12943 12944} 12945 12946static int 12947ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12948{ 12949#if 0 12950 char str[256]; 12951 char path_str[64]; 12952 struct sbuf sb; 12953#endif 12954 12955 /* 12956 * In this case, we had to malloc the memory locally. Free it. 12957 */ 12958 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12959 int i; 12960 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12961 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12962 } 12963 12964#if 0 12965 scsi_path_string(io, path_str, sizeof(path_str)); 12966 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12967 sbuf_cat(&sb, path_str); 12968 scsi_command_string(&io->scsiio, NULL, &sb); 12969 sbuf_printf(&sb, "\n"); 12970 sbuf_cat(&sb, path_str); 12971 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12972 io->scsiio.tag_num, io->scsiio.tag_type); 12973 sbuf_cat(&sb, path_str); 12974 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12975 io->io_hdr.flags, io->io_hdr.status); 12976 sbuf_finish(&sb); 12977 printk("%s", sbuf_data(&sb)); 12978#endif 12979 12980 12981 /* 12982 * The read is done, now we need to send status (good or bad) back 12983 * to the other side. 12984 */ 12985 ctl_send_datamove_done(io, /*have_lock*/ 0); 12986 12987 return (0); 12988} 12989 12990static void 12991ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12992{ 12993 union ctl_io *io; 12994 void (*fe_datamove)(union ctl_io *io); 12995 12996 io = rq->context; 12997 12998 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12999 printf("%s: ISC DMA read failed with error %d", __func__, 13000 rq->ret); 13001 ctl_set_internal_failure(&io->scsiio, 13002 /*sks_valid*/ 1, 13003 /*retry_count*/ rq->ret); 13004 } 13005 13006 ctl_dt_req_free(rq); 13007 13008 /* Switch the pointer over so the FETD knows what to do */ 13009 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 13010 13011 /* 13012 * Use a custom move done callback, since we need to send completion 13013 * back to the other controller, not to the backend on this side. 13014 */ 13015 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 13016 13017 /* XXX KDM add checks like the ones in ctl_datamove? */ 13018 13019 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13020 13021 fe_datamove(io); 13022} 13023 13024static int 13025ctl_datamove_remote_sgl_setup(union ctl_io *io) 13026{ 13027 struct ctl_sg_entry *local_sglist, *remote_sglist; 13028 struct ctl_sg_entry *local_dma_sglist, *remote_dma_sglist; 13029 struct ctl_softc *softc; 13030 int retval; 13031 int i; 13032 13033 retval = 0; 13034 softc = control_softc; 13035 13036 local_sglist = io->io_hdr.local_sglist; 13037 local_dma_sglist = io->io_hdr.local_dma_sglist; 13038 remote_sglist = io->io_hdr.remote_sglist; 13039 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13040 13041 if (io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) { 13042 for (i = 0; i < io->scsiio.kern_sg_entries; i++) { 13043 local_sglist[i].len = remote_sglist[i].len; 13044 13045 /* 13046 * XXX Detect the situation where the RS-level I/O 13047 * redirector on the other side has already read the 13048 * data off of the AOR RS on this side, and 13049 * transferred it to remote (mirror) memory on the 13050 * other side. Since we already have the data in 13051 * memory here, we just need to use it. 13052 * 13053 * XXX KDM this can probably be removed once we 13054 * get the cache device code in and take the 13055 * current AOR implementation out. 13056 */ 13057#ifdef NEEDTOPORT 13058 if ((remote_sglist[i].addr >= 13059 (void *)vtophys(softc->mirr->addr)) 13060 && (remote_sglist[i].addr < 13061 ((void *)vtophys(softc->mirr->addr) + 13062 CacheMirrorOffset))) { 13063 local_sglist[i].addr = remote_sglist[i].addr - 13064 CacheMirrorOffset; 13065 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13066 CTL_FLAG_DATA_IN) 13067 io->io_hdr.flags |= CTL_FLAG_REDIR_DONE; 13068 } else { 13069 local_sglist[i].addr = remote_sglist[i].addr + 13070 CacheMirrorOffset; 13071 } 13072#endif 13073#if 0 13074 printf("%s: local %p, remote %p, len %d\n", 13075 __func__, local_sglist[i].addr, 13076 remote_sglist[i].addr, local_sglist[i].len); 13077#endif 13078 } 13079 } else { 13080 uint32_t len_to_go; 13081 13082 /* 13083 * In this case, we don't have automatically allocated 13084 * memory for this I/O on this controller. This typically 13085 * happens with internal CTL I/O -- e.g. inquiry, mode 13086 * sense, etc. Anything coming from RAIDCore will have 13087 * a mirror area available. 13088 */ 13089 len_to_go = io->scsiio.kern_data_len; 13090 13091 /* 13092 * Clear the no datasync flag, we have to use malloced 13093 * buffers. 13094 */ 13095 io->io_hdr.flags &= ~CTL_FLAG_NO_DATASYNC; 13096 13097 /* 13098 * The difficult thing here is that the size of the various 13099 * S/G segments may be different than the size from the 13100 * remote controller. That'll make it harder when DMAing 13101 * the data back to the other side. 13102 */ 13103 for (i = 0; (i < sizeof(io->io_hdr.remote_sglist) / 13104 sizeof(io->io_hdr.remote_sglist[0])) && 13105 (len_to_go > 0); i++) { 13106 local_sglist[i].len = ctl_min(len_to_go, 131072); 13107 CTL_SIZE_8B(local_dma_sglist[i].len, 13108 local_sglist[i].len); 13109 local_sglist[i].addr = 13110 malloc(local_dma_sglist[i].len, M_CTL,M_WAITOK); 13111 13112 local_dma_sglist[i].addr = local_sglist[i].addr; 13113 13114 if (local_sglist[i].addr == NULL) { 13115 int j; 13116 13117 printf("malloc failed for %zd bytes!", 13118 local_dma_sglist[i].len); 13119 for (j = 0; j < i; j++) { 13120 free(local_sglist[j].addr, M_CTL); 13121 } 13122 ctl_set_internal_failure(&io->scsiio, 13123 /*sks_valid*/ 1, 13124 /*retry_count*/ 4857); 13125 retval = 1; 13126 goto bailout_error; 13127 13128 } 13129 /* XXX KDM do we need a sync here? */ 13130 13131 len_to_go -= local_sglist[i].len; 13132 } 13133 /* 13134 * Reset the number of S/G entries accordingly. The 13135 * original number of S/G entries is available in 13136 * rem_sg_entries. 13137 */ 13138 io->scsiio.kern_sg_entries = i; 13139 13140#if 0 13141 printf("%s: kern_sg_entries = %d\n", __func__, 13142 io->scsiio.kern_sg_entries); 13143 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13144 printf("%s: sg[%d] = %p, %d (DMA: %d)\n", __func__, i, 13145 local_sglist[i].addr, local_sglist[i].len, 13146 local_dma_sglist[i].len); 13147#endif 13148 } 13149 13150 13151 return (retval); 13152 13153bailout_error: 13154 13155 ctl_send_datamove_done(io, /*have_lock*/ 0); 13156 13157 return (retval); 13158} 13159 13160static int 13161ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 13162 ctl_ha_dt_cb callback) 13163{ 13164 struct ctl_ha_dt_req *rq; 13165 struct ctl_sg_entry *remote_sglist, *local_sglist; 13166 struct ctl_sg_entry *remote_dma_sglist, *local_dma_sglist; 13167 uint32_t local_used, remote_used, total_used; 13168 int retval; 13169 int i, j; 13170 13171 retval = 0; 13172 13173 rq = ctl_dt_req_alloc(); 13174 13175 /* 13176 * If we failed to allocate the request, and if the DMA didn't fail 13177 * anyway, set busy status. This is just a resource allocation 13178 * failure. 13179 */ 13180 if ((rq == NULL) 13181 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)) 13182 ctl_set_busy(&io->scsiio); 13183 13184 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 13185 13186 if (rq != NULL) 13187 ctl_dt_req_free(rq); 13188 13189 /* 13190 * The data move failed. We need to return status back 13191 * to the other controller. No point in trying to DMA 13192 * data to the remote controller. 13193 */ 13194 13195 ctl_send_datamove_done(io, /*have_lock*/ 0); 13196 13197 retval = 1; 13198 13199 goto bailout; 13200 } 13201 13202 local_sglist = io->io_hdr.local_sglist; 13203 local_dma_sglist = io->io_hdr.local_dma_sglist; 13204 remote_sglist = io->io_hdr.remote_sglist; 13205 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13206 local_used = 0; 13207 remote_used = 0; 13208 total_used = 0; 13209 13210 if (io->io_hdr.flags & CTL_FLAG_REDIR_DONE) { 13211 rq->ret = CTL_HA_STATUS_SUCCESS; 13212 rq->context = io; 13213 callback(rq); 13214 goto bailout; 13215 } 13216 13217 /* 13218 * Pull/push the data over the wire from/to the other controller. 13219 * This takes into account the possibility that the local and 13220 * remote sglists may not be identical in terms of the size of 13221 * the elements and the number of elements. 13222 * 13223 * One fundamental assumption here is that the length allocated for 13224 * both the local and remote sglists is identical. Otherwise, we've 13225 * essentially got a coding error of some sort. 13226 */ 13227 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 13228 int isc_ret; 13229 uint32_t cur_len, dma_length; 13230 uint8_t *tmp_ptr; 13231 13232 rq->id = CTL_HA_DATA_CTL; 13233 rq->command = command; 13234 rq->context = io; 13235 13236 /* 13237 * Both pointers should be aligned. But it is possible 13238 * that the allocation length is not. They should both 13239 * also have enough slack left over at the end, though, 13240 * to round up to the next 8 byte boundary. 13241 */ 13242 cur_len = ctl_min(local_sglist[i].len - local_used, 13243 remote_sglist[j].len - remote_used); 13244 13245 /* 13246 * In this case, we have a size issue and need to decrease 13247 * the size, except in the case where we actually have less 13248 * than 8 bytes left. In that case, we need to increase 13249 * the DMA length to get the last bit. 13250 */ 13251 if ((cur_len & 0x7) != 0) { 13252 if (cur_len > 0x7) { 13253 cur_len = cur_len - (cur_len & 0x7); 13254 dma_length = cur_len; 13255 } else { 13256 CTL_SIZE_8B(dma_length, cur_len); 13257 } 13258 13259 } else 13260 dma_length = cur_len; 13261 13262 /* 13263 * If we had to allocate memory for this I/O, instead of using 13264 * the non-cached mirror memory, we'll need to flush the cache 13265 * before trying to DMA to the other controller. 13266 * 13267 * We could end up doing this multiple times for the same 13268 * segment if we have a larger local segment than remote 13269 * segment. That shouldn't be an issue. 13270 */ 13271 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 13272 /* 13273 * XXX KDM use bus_dmamap_sync() here. 13274 */ 13275 } 13276 13277 rq->size = dma_length; 13278 13279 tmp_ptr = (uint8_t *)local_sglist[i].addr; 13280 tmp_ptr += local_used; 13281 13282 /* Use physical addresses when talking to ISC hardware */ 13283 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 13284 /* XXX KDM use busdma */ 13285#if 0 13286 rq->local = vtophys(tmp_ptr); 13287#endif 13288 } else 13289 rq->local = tmp_ptr; 13290 13291 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 13292 tmp_ptr += remote_used; 13293 rq->remote = tmp_ptr; 13294 13295 rq->callback = NULL; 13296 13297 local_used += cur_len; 13298 if (local_used >= local_sglist[i].len) { 13299 i++; 13300 local_used = 0; 13301 } 13302 13303 remote_used += cur_len; 13304 if (remote_used >= remote_sglist[j].len) { 13305 j++; 13306 remote_used = 0; 13307 } 13308 total_used += cur_len; 13309 13310 if (total_used >= io->scsiio.kern_data_len) 13311 rq->callback = callback; 13312 13313 if ((rq->size & 0x7) != 0) { 13314 printf("%s: warning: size %d is not on 8b boundary\n", 13315 __func__, rq->size); 13316 } 13317 if (((uintptr_t)rq->local & 0x7) != 0) { 13318 printf("%s: warning: local %p not on 8b boundary\n", 13319 __func__, rq->local); 13320 } 13321 if (((uintptr_t)rq->remote & 0x7) != 0) { 13322 printf("%s: warning: remote %p not on 8b boundary\n", 13323 __func__, rq->local); 13324 } 13325#if 0 13326 printf("%s: %s: local %#x remote %#x size %d\n", __func__, 13327 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13328 rq->local, rq->remote, rq->size); 13329#endif 13330 13331 isc_ret = ctl_dt_single(rq); 13332 if (isc_ret == CTL_HA_STATUS_WAIT) 13333 continue; 13334 13335 if (isc_ret == CTL_HA_STATUS_DISCONNECT) { 13336 rq->ret = CTL_HA_STATUS_SUCCESS; 13337 } else { 13338 rq->ret = isc_ret; 13339 } 13340 callback(rq); 13341 goto bailout; 13342 } 13343 13344bailout: 13345 return (retval); 13346 13347} 13348 13349static void 13350ctl_datamove_remote_read(union ctl_io *io) 13351{ 13352 int retval; 13353 int i; 13354 13355 /* 13356 * This will send an error to the other controller in the case of a 13357 * failure. 13358 */ 13359 retval = ctl_datamove_remote_sgl_setup(io); 13360 if (retval != 0) 13361 return; 13362 13363 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13364 ctl_datamove_remote_read_cb); 13365 if ((retval != 0) 13366 && ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0)) { 13367 /* 13368 * Make sure we free memory if there was an error.. The 13369 * ctl_datamove_remote_xfer() function will send the 13370 * datamove done message, or call the callback with an 13371 * error if there is a problem. 13372 */ 13373 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13374 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13375 } 13376 13377 return; 13378} 13379 13380/* 13381 * Process a datamove request from the other controller. This is used for 13382 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13383 * first. Once that is complete, the data gets DMAed into the remote 13384 * controller's memory. For reads, we DMA from the remote controller's 13385 * memory into our memory first, and then move it out to the FETD. 13386 */ 13387static void 13388ctl_datamove_remote(union ctl_io *io) 13389{ 13390 struct ctl_softc *softc; 13391 13392 softc = control_softc; 13393 13394 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 13395 13396 /* 13397 * Note that we look for an aborted I/O here, but don't do some of 13398 * the other checks that ctl_datamove() normally does. 13399 * We don't need to run the datamove delay code, since that should 13400 * have been done if need be on the other controller. 13401 */ 13402 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13403 printf("%s: tag 0x%04x on (%d:%d:%d:%d) aborted\n", __func__, 13404 io->scsiio.tag_num, io->io_hdr.nexus.initid.id, 13405 io->io_hdr.nexus.targ_port, 13406 io->io_hdr.nexus.targ_target.id, 13407 io->io_hdr.nexus.targ_lun); 13408 io->io_hdr.port_status = 31338; 13409 ctl_send_datamove_done(io, /*have_lock*/ 0); 13410 return; 13411 } 13412 13413 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) { 13414 ctl_datamove_remote_write(io); 13415 } else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN){ 13416 ctl_datamove_remote_read(io); 13417 } else { 13418 union ctl_ha_msg msg; 13419 struct scsi_sense_data *sense; 13420 uint8_t sks[3]; 13421 int retry_count; 13422 13423 memset(&msg, 0, sizeof(msg)); 13424 13425 msg.hdr.msg_type = CTL_MSG_BAD_JUJU; 13426 msg.hdr.status = CTL_SCSI_ERROR; 13427 msg.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 13428 13429 retry_count = 4243; 13430 13431 sense = &msg.scsi.sense_data; 13432 sks[0] = SSD_SCS_VALID; 13433 sks[1] = (retry_count >> 8) & 0xff; 13434 sks[2] = retry_count & 0xff; 13435 13436 /* "Internal target failure" */ 13437 scsi_set_sense_data(sense, 13438 /*sense_format*/ SSD_TYPE_NONE, 13439 /*current_error*/ 1, 13440 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 13441 /*asc*/ 0x44, 13442 /*ascq*/ 0x00, 13443 /*type*/ SSD_ELEM_SKS, 13444 /*size*/ sizeof(sks), 13445 /*data*/ sks, 13446 SSD_ELEM_NONE); 13447 13448 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13449 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13450 ctl_failover_io(io, /*have_lock*/ 1); 13451 return; 13452 } 13453 13454 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0) > 13455 CTL_HA_STATUS_SUCCESS) { 13456 /* XXX KDM what to do if this fails? */ 13457 } 13458 return; 13459 } 13460 13461} 13462 13463static int 13464ctl_process_done(union ctl_io *io) 13465{ 13466 struct ctl_lun *lun; 13467 struct ctl_softc *ctl_softc = control_softc; 13468 void (*fe_done)(union ctl_io *io); 13469 uint32_t targ_port = ctl_port_idx(io->io_hdr.nexus.targ_port); 13470 13471 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13472 13473 fe_done = 13474 control_softc->ctl_ports[targ_port]->fe_done; 13475 13476#ifdef CTL_TIME_IO 13477 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13478 char str[256]; 13479 char path_str[64]; 13480 struct sbuf sb; 13481 13482 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13483 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13484 13485 sbuf_cat(&sb, path_str); 13486 switch (io->io_hdr.io_type) { 13487 case CTL_IO_SCSI: 13488 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13489 sbuf_printf(&sb, "\n"); 13490 sbuf_cat(&sb, path_str); 13491 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13492 io->scsiio.tag_num, io->scsiio.tag_type); 13493 break; 13494 case CTL_IO_TASK: 13495 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13496 "Tag Type: %d\n", io->taskio.task_action, 13497 io->taskio.tag_num, io->taskio.tag_type); 13498 break; 13499 default: 13500 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13501 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13502 break; 13503 } 13504 sbuf_cat(&sb, path_str); 13505 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13506 (intmax_t)time_uptime - io->io_hdr.start_time); 13507 sbuf_finish(&sb); 13508 printf("%s", sbuf_data(&sb)); 13509 } 13510#endif /* CTL_TIME_IO */ 13511 13512 switch (io->io_hdr.io_type) { 13513 case CTL_IO_SCSI: 13514 break; 13515 case CTL_IO_TASK: 13516 if (bootverbose || (ctl_debug & CTL_DEBUG_INFO)) 13517 ctl_io_error_print(io, NULL); 13518 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 13519 ctl_free_io(io); 13520 else 13521 fe_done(io); 13522 return (CTL_RETVAL_COMPLETE); 13523 default: 13524 panic("ctl_process_done: invalid io type %d\n", 13525 io->io_hdr.io_type); 13526 break; /* NOTREACHED */ 13527 } 13528 13529 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13530 if (lun == NULL) { 13531 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13532 io->io_hdr.nexus.targ_mapped_lun)); 13533 goto bailout; 13534 } 13535 13536 mtx_lock(&lun->lun_lock); 13537 13538 /* 13539 * Check to see if we have any errors to inject here. We only 13540 * inject errors for commands that don't already have errors set. 13541 */ 13542 if ((STAILQ_FIRST(&lun->error_list) != NULL) 13543 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) 13544 ctl_inject_error(lun, io); 13545 13546 /* 13547 * XXX KDM how do we treat commands that aren't completed 13548 * successfully? 13549 * 13550 * XXX KDM should we also track I/O latency? 13551 */ 13552 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13553 io->io_hdr.io_type == CTL_IO_SCSI) { 13554#ifdef CTL_TIME_IO 13555 struct bintime cur_bt; 13556#endif 13557 int type; 13558 13559 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13560 CTL_FLAG_DATA_IN) 13561 type = CTL_STATS_READ; 13562 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13563 CTL_FLAG_DATA_OUT) 13564 type = CTL_STATS_WRITE; 13565 else 13566 type = CTL_STATS_NO_IO; 13567 13568 lun->stats.ports[targ_port].bytes[type] += 13569 io->scsiio.kern_total_len; 13570 lun->stats.ports[targ_port].operations[type]++; 13571#ifdef CTL_TIME_IO 13572 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13573 &io->io_hdr.dma_bt); 13574 lun->stats.ports[targ_port].num_dmas[type] += 13575 io->io_hdr.num_dmas; 13576 getbintime(&cur_bt); 13577 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13578 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13579#endif 13580 } 13581 13582 /* 13583 * Remove this from the OOA queue. 13584 */ 13585 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13586 13587 /* 13588 * Run through the blocked queue on this LUN and see if anything 13589 * has become unblocked, now that this transaction is done. 13590 */ 13591 ctl_check_blocked(lun); 13592 13593 /* 13594 * If the LUN has been invalidated, free it if there is nothing 13595 * left on its OOA queue. 13596 */ 13597 if ((lun->flags & CTL_LUN_INVALID) 13598 && TAILQ_EMPTY(&lun->ooa_queue)) { 13599 mtx_unlock(&lun->lun_lock); 13600 mtx_lock(&ctl_softc->ctl_lock); 13601 ctl_free_lun(lun); 13602 mtx_unlock(&ctl_softc->ctl_lock); 13603 } else 13604 mtx_unlock(&lun->lun_lock); 13605 13606bailout: 13607 13608 /* 13609 * If this command has been aborted, make sure we set the status 13610 * properly. The FETD is responsible for freeing the I/O and doing 13611 * whatever it needs to do to clean up its state. 13612 */ 13613 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13614 ctl_set_task_aborted(&io->scsiio); 13615 13616 /* 13617 * If enabled, print command error status. 13618 * We don't print UAs unless debugging was enabled explicitly. 13619 */ 13620 do { 13621 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) 13622 break; 13623 if (!bootverbose && (ctl_debug & CTL_DEBUG_INFO) == 0) 13624 break; 13625 if ((ctl_debug & CTL_DEBUG_INFO) == 0 && 13626 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SCSI_ERROR) && 13627 (io->scsiio.scsi_status == SCSI_STATUS_CHECK_COND)) { 13628 int error_code, sense_key, asc, ascq; 13629 13630 scsi_extract_sense_len(&io->scsiio.sense_data, 13631 io->scsiio.sense_len, &error_code, &sense_key, 13632 &asc, &ascq, /*show_errors*/ 0); 13633 if (sense_key == SSD_KEY_UNIT_ATTENTION) 13634 break; 13635 } 13636 13637 ctl_io_error_print(io, NULL); 13638 } while (0); 13639 13640 /* 13641 * Tell the FETD or the other shelf controller we're done with this 13642 * command. Note that only SCSI commands get to this point. Task 13643 * management commands are completed above. 13644 * 13645 * We only send status to the other controller if we're in XFER 13646 * mode. In SER_ONLY mode, the I/O is done on the controller that 13647 * received the I/O (from CTL's perspective), and so the status is 13648 * generated there. 13649 * 13650 * XXX KDM if we hold the lock here, we could cause a deadlock 13651 * if the frontend comes back in in this context to queue 13652 * something. 13653 */ 13654 if ((ctl_softc->ha_mode == CTL_HA_MODE_XFER) 13655 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 13656 union ctl_ha_msg msg; 13657 13658 memset(&msg, 0, sizeof(msg)); 13659 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13660 msg.hdr.original_sc = io->io_hdr.original_sc; 13661 msg.hdr.nexus = io->io_hdr.nexus; 13662 msg.hdr.status = io->io_hdr.status; 13663 msg.scsi.scsi_status = io->scsiio.scsi_status; 13664 msg.scsi.tag_num = io->scsiio.tag_num; 13665 msg.scsi.tag_type = io->scsiio.tag_type; 13666 msg.scsi.sense_len = io->scsiio.sense_len; 13667 msg.scsi.sense_residual = io->scsiio.sense_residual; 13668 msg.scsi.residual = io->scsiio.residual; 13669 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13670 sizeof(io->scsiio.sense_data)); 13671 /* 13672 * We copy this whether or not this is an I/O-related 13673 * command. Otherwise, we'd have to go and check to see 13674 * whether it's a read/write command, and it really isn't 13675 * worth it. 13676 */ 13677 memcpy(&msg.scsi.lbalen, 13678 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 13679 sizeof(msg.scsi.lbalen)); 13680 13681 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13682 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13683 /* XXX do something here */ 13684 } 13685 13686 ctl_free_io(io); 13687 } else 13688 fe_done(io); 13689 13690 return (CTL_RETVAL_COMPLETE); 13691} 13692 13693#ifdef CTL_WITH_CA 13694/* 13695 * Front end should call this if it doesn't do autosense. When the request 13696 * sense comes back in from the initiator, we'll dequeue this and send it. 13697 */ 13698int 13699ctl_queue_sense(union ctl_io *io) 13700{ 13701 struct ctl_lun *lun; 13702 struct ctl_softc *ctl_softc; 13703 uint32_t initidx, targ_lun; 13704 13705 ctl_softc = control_softc; 13706 13707 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13708 13709 /* 13710 * LUN lookup will likely move to the ctl_work_thread() once we 13711 * have our new queueing infrastructure (that doesn't put things on 13712 * a per-LUN queue initially). That is so that we can handle 13713 * things like an INQUIRY to a LUN that we don't have enabled. We 13714 * can't deal with that right now. 13715 */ 13716 mtx_lock(&ctl_softc->ctl_lock); 13717 13718 /* 13719 * If we don't have a LUN for this, just toss the sense 13720 * information. 13721 */ 13722 targ_lun = io->io_hdr.nexus.targ_lun; 13723 targ_lun = ctl_map_lun(io->io_hdr.nexus.targ_port, targ_lun); 13724 if ((targ_lun < CTL_MAX_LUNS) 13725 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 13726 lun = ctl_softc->ctl_luns[targ_lun]; 13727 else 13728 goto bailout; 13729 13730 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13731 13732 mtx_lock(&lun->lun_lock); 13733 /* 13734 * Already have CA set for this LUN...toss the sense information. 13735 */ 13736 if (ctl_is_set(lun->have_ca, initidx)) { 13737 mtx_unlock(&lun->lun_lock); 13738 goto bailout; 13739 } 13740 13741 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13742 ctl_min(sizeof(lun->pending_sense[initidx]), 13743 sizeof(io->scsiio.sense_data))); 13744 ctl_set_mask(lun->have_ca, initidx); 13745 mtx_unlock(&lun->lun_lock); 13746 13747bailout: 13748 mtx_unlock(&ctl_softc->ctl_lock); 13749 13750 ctl_free_io(io); 13751 13752 return (CTL_RETVAL_COMPLETE); 13753} 13754#endif 13755 13756/* 13757 * Primary command inlet from frontend ports. All SCSI and task I/O 13758 * requests must go through this function. 13759 */ 13760int 13761ctl_queue(union ctl_io *io) 13762{ 13763 struct ctl_softc *ctl_softc; 13764 13765 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13766 13767 ctl_softc = control_softc; 13768 13769#ifdef CTL_TIME_IO 13770 io->io_hdr.start_time = time_uptime; 13771 getbintime(&io->io_hdr.start_bt); 13772#endif /* CTL_TIME_IO */ 13773 13774 /* Map FE-specific LUN ID into global one. */ 13775 io->io_hdr.nexus.targ_mapped_lun = 13776 ctl_map_lun(io->io_hdr.nexus.targ_port, io->io_hdr.nexus.targ_lun); 13777 13778 switch (io->io_hdr.io_type) { 13779 case CTL_IO_SCSI: 13780 case CTL_IO_TASK: 13781 if (ctl_debug & CTL_DEBUG_CDB) 13782 ctl_io_print(io); 13783 ctl_enqueue_incoming(io); 13784 break; 13785 default: 13786 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13787 return (EINVAL); 13788 } 13789 13790 return (CTL_RETVAL_COMPLETE); 13791} 13792 13793#ifdef CTL_IO_DELAY 13794static void 13795ctl_done_timer_wakeup(void *arg) 13796{ 13797 union ctl_io *io; 13798 13799 io = (union ctl_io *)arg; 13800 ctl_done(io); 13801} 13802#endif /* CTL_IO_DELAY */ 13803 13804void 13805ctl_done(union ctl_io *io) 13806{ 13807 struct ctl_softc *ctl_softc; 13808 13809 ctl_softc = control_softc; 13810 13811 /* 13812 * Enable this to catch duplicate completion issues. 13813 */ 13814#if 0 13815 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13816 printf("%s: type %d msg %d cdb %x iptl: " 13817 "%d:%d:%d:%d tag 0x%04x " 13818 "flag %#x status %x\n", 13819 __func__, 13820 io->io_hdr.io_type, 13821 io->io_hdr.msg_type, 13822 io->scsiio.cdb[0], 13823 io->io_hdr.nexus.initid.id, 13824 io->io_hdr.nexus.targ_port, 13825 io->io_hdr.nexus.targ_target.id, 13826 io->io_hdr.nexus.targ_lun, 13827 (io->io_hdr.io_type == 13828 CTL_IO_TASK) ? 13829 io->taskio.tag_num : 13830 io->scsiio.tag_num, 13831 io->io_hdr.flags, 13832 io->io_hdr.status); 13833 } else 13834 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13835#endif 13836 13837 /* 13838 * This is an internal copy of an I/O, and should not go through 13839 * the normal done processing logic. 13840 */ 13841 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13842 return; 13843 13844 /* 13845 * We need to send a msg to the serializing shelf to finish the IO 13846 * as well. We don't send a finish message to the other shelf if 13847 * this is a task management command. Task management commands 13848 * aren't serialized in the OOA queue, but rather just executed on 13849 * both shelf controllers for commands that originated on that 13850 * controller. 13851 */ 13852 if ((io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC) 13853 && (io->io_hdr.io_type != CTL_IO_TASK)) { 13854 union ctl_ha_msg msg_io; 13855 13856 msg_io.hdr.msg_type = CTL_MSG_FINISH_IO; 13857 msg_io.hdr.serializing_sc = io->io_hdr.serializing_sc; 13858 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_io, 13859 sizeof(msg_io), 0 ) != CTL_HA_STATUS_SUCCESS) { 13860 } 13861 /* continue on to finish IO */ 13862 } 13863#ifdef CTL_IO_DELAY 13864 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13865 struct ctl_lun *lun; 13866 13867 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13868 13869 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13870 } else { 13871 struct ctl_lun *lun; 13872 13873 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13874 13875 if ((lun != NULL) 13876 && (lun->delay_info.done_delay > 0)) { 13877 struct callout *callout; 13878 13879 callout = (struct callout *)&io->io_hdr.timer_bytes; 13880 callout_init(callout, /*mpsafe*/ 1); 13881 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13882 callout_reset(callout, 13883 lun->delay_info.done_delay * hz, 13884 ctl_done_timer_wakeup, io); 13885 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13886 lun->delay_info.done_delay = 0; 13887 return; 13888 } 13889 } 13890#endif /* CTL_IO_DELAY */ 13891 13892 ctl_enqueue_done(io); 13893} 13894 13895int 13896ctl_isc(struct ctl_scsiio *ctsio) 13897{ 13898 struct ctl_lun *lun; 13899 int retval; 13900 13901 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13902 13903 CTL_DEBUG_PRINT(("ctl_isc: command: %02x\n", ctsio->cdb[0])); 13904 13905 CTL_DEBUG_PRINT(("ctl_isc: calling data_submit()\n")); 13906 13907 retval = lun->backend->data_submit((union ctl_io *)ctsio); 13908 13909 return (retval); 13910} 13911 13912 13913static void 13914ctl_work_thread(void *arg) 13915{ 13916 struct ctl_thread *thr = (struct ctl_thread *)arg; 13917 struct ctl_softc *softc = thr->ctl_softc; 13918 union ctl_io *io; 13919 int retval; 13920 13921 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13922 13923 for (;;) { 13924 retval = 0; 13925 13926 /* 13927 * We handle the queues in this order: 13928 * - ISC 13929 * - done queue (to free up resources, unblock other commands) 13930 * - RtR queue 13931 * - incoming queue 13932 * 13933 * If those queues are empty, we break out of the loop and 13934 * go to sleep. 13935 */ 13936 mtx_lock(&thr->queue_lock); 13937 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13938 if (io != NULL) { 13939 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13940 mtx_unlock(&thr->queue_lock); 13941 ctl_handle_isc(io); 13942 continue; 13943 } 13944 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13945 if (io != NULL) { 13946 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13947 /* clear any blocked commands, call fe_done */ 13948 mtx_unlock(&thr->queue_lock); 13949 retval = ctl_process_done(io); 13950 continue; 13951 } 13952 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13953 if (io != NULL) { 13954 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13955 mtx_unlock(&thr->queue_lock); 13956 if (io->io_hdr.io_type == CTL_IO_TASK) 13957 ctl_run_task(io); 13958 else 13959 ctl_scsiio_precheck(softc, &io->scsiio); 13960 continue; 13961 } 13962 if (!ctl_pause_rtr) { 13963 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13964 if (io != NULL) { 13965 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13966 mtx_unlock(&thr->queue_lock); 13967 retval = ctl_scsiio(&io->scsiio); 13968 if (retval != CTL_RETVAL_COMPLETE) 13969 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13970 continue; 13971 } 13972 } 13973 13974 /* Sleep until we have something to do. */ 13975 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13976 } 13977} 13978 13979static void 13980ctl_lun_thread(void *arg) 13981{ 13982 struct ctl_softc *softc = (struct ctl_softc *)arg; 13983 struct ctl_be_lun *be_lun; 13984 int retval; 13985 13986 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 13987 13988 for (;;) { 13989 retval = 0; 13990 mtx_lock(&softc->ctl_lock); 13991 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 13992 if (be_lun != NULL) { 13993 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 13994 mtx_unlock(&softc->ctl_lock); 13995 ctl_create_lun(be_lun); 13996 continue; 13997 } 13998 13999 /* Sleep until we have something to do. */ 14000 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 14001 PDROP | PRIBIO, "-", 0); 14002 } 14003} 14004 14005static void 14006ctl_thresh_thread(void *arg) 14007{ 14008 struct ctl_softc *softc = (struct ctl_softc *)arg; 14009 struct ctl_lun *lun; 14010 struct ctl_be_lun *be_lun; 14011 struct scsi_da_rw_recovery_page *rwpage; 14012 struct ctl_logical_block_provisioning_page *page; 14013 const char *attr; 14014 uint64_t thres, val; 14015 int i, e; 14016 14017 CTL_DEBUG_PRINT(("ctl_thresh_thread starting\n")); 14018 14019 for (;;) { 14020 mtx_lock(&softc->ctl_lock); 14021 STAILQ_FOREACH(lun, &softc->lun_list, links) { 14022 be_lun = lun->be_lun; 14023 if ((lun->flags & CTL_LUN_DISABLED) || 14024 (lun->flags & CTL_LUN_OFFLINE) || 14025 (be_lun->flags & CTL_LUN_FLAG_UNMAP) == 0 || 14026 lun->backend->lun_attr == NULL) 14027 continue; 14028 rwpage = &lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT]; 14029 if ((rwpage->byte8 & SMS_RWER_LBPERE) == 0) 14030 continue; 14031 e = 0; 14032 page = &lun->mode_pages.lbp_page[CTL_PAGE_CURRENT]; 14033 for (i = 0; i < CTL_NUM_LBP_THRESH; i++) { 14034 if ((page->descr[i].flags & SLBPPD_ENABLED) == 0) 14035 continue; 14036 thres = scsi_4btoul(page->descr[i].count); 14037 thres <<= CTL_LBP_EXPONENT; 14038 switch (page->descr[i].resource) { 14039 case 0x01: 14040 attr = "blocksavail"; 14041 break; 14042 case 0x02: 14043 attr = "blocksused"; 14044 break; 14045 case 0xf1: 14046 attr = "poolblocksavail"; 14047 break; 14048 case 0xf2: 14049 attr = "poolblocksused"; 14050 break; 14051 default: 14052 continue; 14053 } 14054 mtx_unlock(&softc->ctl_lock); // XXX 14055 val = lun->backend->lun_attr( 14056 lun->be_lun->be_lun, attr); 14057 mtx_lock(&softc->ctl_lock); 14058 if (val == UINT64_MAX) 14059 continue; 14060 if ((page->descr[i].flags & SLBPPD_ARMING_MASK) 14061 == SLBPPD_ARMING_INC) 14062 e |= (val >= thres); 14063 else 14064 e |= (val <= thres); 14065 } 14066 mtx_lock(&lun->lun_lock); 14067 if (e) { 14068 if (lun->lasttpt == 0 || 14069 time_uptime - lun->lasttpt >= CTL_LBP_UA_PERIOD) { 14070 lun->lasttpt = time_uptime; 14071 for (i = 0; i < CTL_MAX_INITIATORS; i++) 14072 lun->pending_ua[i] |= 14073 CTL_UA_THIN_PROV_THRES; 14074 } 14075 } else { 14076 lun->lasttpt = 0; 14077 for (i = 0; i < CTL_MAX_INITIATORS; i++) 14078 lun->pending_ua[i] &= ~CTL_UA_THIN_PROV_THRES; 14079 } 14080 mtx_unlock(&lun->lun_lock); 14081 } 14082 mtx_unlock(&softc->ctl_lock); 14083 pause("-", CTL_LBP_PERIOD * hz); 14084 } 14085} 14086 14087static void 14088ctl_enqueue_incoming(union ctl_io *io) 14089{ 14090 struct ctl_softc *softc = control_softc; 14091 struct ctl_thread *thr; 14092 u_int idx; 14093 14094 idx = (io->io_hdr.nexus.targ_port * 127 + 14095 io->io_hdr.nexus.initid.id) % worker_threads; 14096 thr = &softc->threads[idx]; 14097 mtx_lock(&thr->queue_lock); 14098 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 14099 mtx_unlock(&thr->queue_lock); 14100 wakeup(thr); 14101} 14102 14103static void 14104ctl_enqueue_rtr(union ctl_io *io) 14105{ 14106 struct ctl_softc *softc = control_softc; 14107 struct ctl_thread *thr; 14108 14109 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14110 mtx_lock(&thr->queue_lock); 14111 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 14112 mtx_unlock(&thr->queue_lock); 14113 wakeup(thr); 14114} 14115 14116static void 14117ctl_enqueue_done(union ctl_io *io) 14118{ 14119 struct ctl_softc *softc = control_softc; 14120 struct ctl_thread *thr; 14121 14122 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14123 mtx_lock(&thr->queue_lock); 14124 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 14125 mtx_unlock(&thr->queue_lock); 14126 wakeup(thr); 14127} 14128 14129static void 14130ctl_enqueue_isc(union ctl_io *io) 14131{ 14132 struct ctl_softc *softc = control_softc; 14133 struct ctl_thread *thr; 14134 14135 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14136 mtx_lock(&thr->queue_lock); 14137 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 14138 mtx_unlock(&thr->queue_lock); 14139 wakeup(thr); 14140} 14141 14142/* Initialization and failover */ 14143 14144void 14145ctl_init_isc_msg(void) 14146{ 14147 printf("CTL: Still calling this thing\n"); 14148} 14149 14150/* 14151 * Init component 14152 * Initializes component into configuration defined by bootMode 14153 * (see hasc-sv.c) 14154 * returns hasc_Status: 14155 * OK 14156 * ERROR - fatal error 14157 */ 14158static ctl_ha_comp_status 14159ctl_isc_init(struct ctl_ha_component *c) 14160{ 14161 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14162 14163 c->status = ret; 14164 return ret; 14165} 14166 14167/* Start component 14168 * Starts component in state requested. If component starts successfully, 14169 * it must set its own state to the requestrd state 14170 * When requested state is HASC_STATE_HA, the component may refine it 14171 * by adding _SLAVE or _MASTER flags. 14172 * Currently allowed state transitions are: 14173 * UNKNOWN->HA - initial startup 14174 * UNKNOWN->SINGLE - initial startup when no parter detected 14175 * HA->SINGLE - failover 14176 * returns ctl_ha_comp_status: 14177 * OK - component successfully started in requested state 14178 * FAILED - could not start the requested state, failover may 14179 * be possible 14180 * ERROR - fatal error detected, no future startup possible 14181 */ 14182static ctl_ha_comp_status 14183ctl_isc_start(struct ctl_ha_component *c, ctl_ha_state state) 14184{ 14185 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14186 14187 printf("%s: go\n", __func__); 14188 14189 // UNKNOWN->HA or UNKNOWN->SINGLE (bootstrap) 14190 if (c->state == CTL_HA_STATE_UNKNOWN ) { 14191 control_softc->is_single = 0; 14192 if (ctl_ha_msg_create(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 14193 != CTL_HA_STATUS_SUCCESS) { 14194 printf("ctl_isc_start: ctl_ha_msg_create failed.\n"); 14195 ret = CTL_HA_COMP_STATUS_ERROR; 14196 } 14197 } else if (CTL_HA_STATE_IS_HA(c->state) 14198 && CTL_HA_STATE_IS_SINGLE(state)){ 14199 // HA->SINGLE transition 14200 ctl_failover(); 14201 control_softc->is_single = 1; 14202 } else { 14203 printf("ctl_isc_start:Invalid state transition %X->%X\n", 14204 c->state, state); 14205 ret = CTL_HA_COMP_STATUS_ERROR; 14206 } 14207 if (CTL_HA_STATE_IS_SINGLE(state)) 14208 control_softc->is_single = 1; 14209 14210 c->state = state; 14211 c->status = ret; 14212 return ret; 14213} 14214 14215/* 14216 * Quiesce component 14217 * The component must clear any error conditions (set status to OK) and 14218 * prepare itself to another Start call 14219 * returns ctl_ha_comp_status: 14220 * OK 14221 * ERROR 14222 */ 14223static ctl_ha_comp_status 14224ctl_isc_quiesce(struct ctl_ha_component *c) 14225{ 14226 int ret = CTL_HA_COMP_STATUS_OK; 14227 14228 ctl_pause_rtr = 1; 14229 c->status = ret; 14230 return ret; 14231} 14232 14233struct ctl_ha_component ctl_ha_component_ctlisc = 14234{ 14235 .name = "CTL ISC", 14236 .state = CTL_HA_STATE_UNKNOWN, 14237 .init = ctl_isc_init, 14238 .start = ctl_isc_start, 14239 .quiesce = ctl_isc_quiesce 14240}; 14241 14242/* 14243 * vim: ts=8 14244 */ 14245