ctl.c revision 275953
1/*- 2 * Copyright (c) 2003-2009 Silicon Graphics International Corp. 3 * Copyright (c) 2012 The FreeBSD Foundation 4 * All rights reserved. 5 * 6 * Portions of this software were developed by Edward Tomasz Napierala 7 * under sponsorship from the FreeBSD Foundation. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions, and the following disclaimer, 14 * without modification. 15 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 16 * substantially similar to the "NO WARRANTY" disclaimer below 17 * ("Disclaimer") and any redistribution must be conditioned upon 18 * including a substantially similar Disclaimer requirement for further 19 * binary redistribution. 20 * 21 * NO WARRANTY 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 23 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 24 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 25 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 26 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 30 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 31 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32 * POSSIBILITY OF SUCH DAMAGES. 33 * 34 * $Id: //depot/users/kenm/FreeBSD-test2/sys/cam/ctl/ctl.c#8 $ 35 */ 36/* 37 * CAM Target Layer, a SCSI device emulation subsystem. 38 * 39 * Author: Ken Merry <ken@FreeBSD.org> 40 */ 41 42#define _CTL_C 43 44#include <sys/cdefs.h> 45__FBSDID("$FreeBSD: head/sys/cam/ctl/ctl.c 275953 2014-12-20 13:33:31Z 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 */ 114const static 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 124const static 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 133const static 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 147const static 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 161const static 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 178const static 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 194const static 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 211const static 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 227const static 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 243const static 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 259const static 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 271const static 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 283const static 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 292const static 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 303const static 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 329const static 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 uint8_t ctl_pause_rtr; 360 361SYSCTL_NODE(_kern_cam, OID_AUTO, ctl, CTLFLAG_RD, 0, "CAM Target Layer"); 362static int worker_threads = -1; 363SYSCTL_INT(_kern_cam_ctl, OID_AUTO, worker_threads, CTLFLAG_RDTUN, 364 &worker_threads, 1, "Number of worker threads"); 365static int ctl_debug = CTL_DEBUG_NONE; 366SYSCTL_INT(_kern_cam_ctl, OID_AUTO, debug, CTLFLAG_RWTUN, 367 &ctl_debug, 0, "Enabled debug flags"); 368 369/* 370 * Supported pages (0x00), Serial number (0x80), Device ID (0x83), 371 * Extended INQUIRY Data (0x86), Mode Page Policy (0x87), 372 * SCSI Ports (0x88), Third-party Copy (0x8F), Block limits (0xB0), 373 * Block Device Characteristics (0xB1) and Logical Block Provisioning (0xB2) 374 */ 375#define SCSI_EVPD_NUM_SUPPORTED_PAGES 10 376 377static void ctl_isc_event_handler(ctl_ha_channel chanel, ctl_ha_event event, 378 int param); 379static void ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest); 380static int ctl_init(void); 381void ctl_shutdown(void); 382static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td); 383static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td); 384static void ctl_ioctl_online(void *arg); 385static void ctl_ioctl_offline(void *arg); 386static int ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id); 387static int ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id); 388static int ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio); 389static int ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio); 390static int ctl_ioctl_submit_wait(union ctl_io *io); 391static void ctl_ioctl_datamove(union ctl_io *io); 392static void ctl_ioctl_done(union ctl_io *io); 393static void ctl_ioctl_hard_startstop_callback(void *arg, 394 struct cfi_metatask *metatask); 395static void ctl_ioctl_bbrread_callback(void *arg,struct cfi_metatask *metatask); 396static int ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 397 struct ctl_ooa *ooa_hdr, 398 struct ctl_ooa_entry *kern_entries); 399static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 400 struct thread *td); 401static uint32_t ctl_map_lun(struct ctl_softc *softc, int port_num, uint32_t lun); 402static uint32_t ctl_map_lun_back(struct ctl_softc *softc, int port_num, uint32_t lun); 403static int ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 404 struct ctl_be_lun *be_lun, struct ctl_id target_id); 405static int ctl_free_lun(struct ctl_lun *lun); 406static void ctl_create_lun(struct ctl_be_lun *be_lun); 407/** 408static void ctl_failover_change_pages(struct ctl_softc *softc, 409 struct ctl_scsiio *ctsio, int master); 410**/ 411 412static int ctl_do_mode_select(union ctl_io *io); 413static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, 414 uint64_t res_key, uint64_t sa_res_key, 415 uint8_t type, uint32_t residx, 416 struct ctl_scsiio *ctsio, 417 struct scsi_per_res_out *cdb, 418 struct scsi_per_res_out_parms* param); 419static void ctl_pro_preempt_other(struct ctl_lun *lun, 420 union ctl_ha_msg *msg); 421static void ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg); 422static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 423static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 424static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 425static int ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len); 426static int ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len); 427static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, 428 int alloc_len); 429static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 430 int alloc_len); 431static int ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len); 432static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 433static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 434static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 435static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len); 436static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2, 437 bool seq); 438static ctl_action ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2); 439static ctl_action ctl_check_for_blockage(struct ctl_lun *lun, 440 union ctl_io *pending_io, union ctl_io *ooa_io); 441static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 442 union ctl_io *starting_io); 443static int ctl_check_blocked(struct ctl_lun *lun); 444static int ctl_scsiio_lun_check(struct ctl_lun *lun, 445 const struct ctl_cmd_entry *entry, 446 struct ctl_scsiio *ctsio); 447//static int ctl_check_rtr(union ctl_io *pending_io, struct ctl_softc *softc); 448static void ctl_failover(void); 449static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 450 struct ctl_scsiio *ctsio); 451static int ctl_scsiio(struct ctl_scsiio *ctsio); 452 453static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 454static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 455 ctl_ua_type ua_type); 456static int ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, 457 ctl_ua_type ua_type); 458static int ctl_abort_task(union ctl_io *io); 459static int ctl_abort_task_set(union ctl_io *io); 460static int ctl_i_t_nexus_reset(union ctl_io *io); 461static void ctl_run_task(union ctl_io *io); 462#ifdef CTL_IO_DELAY 463static void ctl_datamove_timer_wakeup(void *arg); 464static void ctl_done_timer_wakeup(void *arg); 465#endif /* CTL_IO_DELAY */ 466 467static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 468static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 469static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 470static void ctl_datamove_remote_write(union ctl_io *io); 471static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 472static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 473static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 474static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 475 ctl_ha_dt_cb callback); 476static void ctl_datamove_remote_read(union ctl_io *io); 477static void ctl_datamove_remote(union ctl_io *io); 478static int ctl_process_done(union ctl_io *io); 479static void ctl_lun_thread(void *arg); 480static void ctl_thresh_thread(void *arg); 481static void ctl_work_thread(void *arg); 482static void ctl_enqueue_incoming(union ctl_io *io); 483static void ctl_enqueue_rtr(union ctl_io *io); 484static void ctl_enqueue_done(union ctl_io *io); 485static void ctl_enqueue_isc(union ctl_io *io); 486static const struct ctl_cmd_entry * 487 ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa); 488static const struct ctl_cmd_entry * 489 ctl_validate_command(struct ctl_scsiio *ctsio); 490static int ctl_cmd_applicable(uint8_t lun_type, 491 const struct ctl_cmd_entry *entry); 492 493/* 494 * Load the serialization table. This isn't very pretty, but is probably 495 * the easiest way to do it. 496 */ 497#include "ctl_ser_table.c" 498 499/* 500 * We only need to define open, close and ioctl routines for this driver. 501 */ 502static struct cdevsw ctl_cdevsw = { 503 .d_version = D_VERSION, 504 .d_flags = 0, 505 .d_open = ctl_open, 506 .d_close = ctl_close, 507 .d_ioctl = ctl_ioctl, 508 .d_name = "ctl", 509}; 510 511 512MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 513MALLOC_DEFINE(M_CTLIO, "ctlio", "Memory used for CTL requests"); 514 515static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 516 517static moduledata_t ctl_moduledata = { 518 "ctl", 519 ctl_module_event_handler, 520 NULL 521}; 522 523DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 524MODULE_VERSION(ctl, 1); 525 526static struct ctl_frontend ioctl_frontend = 527{ 528 .name = "ioctl", 529}; 530 531static void 532ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 533 union ctl_ha_msg *msg_info) 534{ 535 struct ctl_scsiio *ctsio; 536 537 if (msg_info->hdr.original_sc == NULL) { 538 printf("%s: original_sc == NULL!\n", __func__); 539 /* XXX KDM now what? */ 540 return; 541 } 542 543 ctsio = &msg_info->hdr.original_sc->scsiio; 544 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 545 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 546 ctsio->io_hdr.status = msg_info->hdr.status; 547 ctsio->scsi_status = msg_info->scsi.scsi_status; 548 ctsio->sense_len = msg_info->scsi.sense_len; 549 ctsio->sense_residual = msg_info->scsi.sense_residual; 550 ctsio->residual = msg_info->scsi.residual; 551 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 552 sizeof(ctsio->sense_data)); 553 memcpy(&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 554 &msg_info->scsi.lbalen, sizeof(msg_info->scsi.lbalen)); 555 ctl_enqueue_isc((union ctl_io *)ctsio); 556} 557 558static void 559ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 560 union ctl_ha_msg *msg_info) 561{ 562 struct ctl_scsiio *ctsio; 563 564 if (msg_info->hdr.serializing_sc == NULL) { 565 printf("%s: serializing_sc == NULL!\n", __func__); 566 /* XXX KDM now what? */ 567 return; 568 } 569 570 ctsio = &msg_info->hdr.serializing_sc->scsiio; 571#if 0 572 /* 573 * Attempt to catch the situation where an I/O has 574 * been freed, and we're using it again. 575 */ 576 if (ctsio->io_hdr.io_type == 0xff) { 577 union ctl_io *tmp_io; 578 tmp_io = (union ctl_io *)ctsio; 579 printf("%s: %p use after free!\n", __func__, 580 ctsio); 581 printf("%s: type %d msg %d cdb %x iptl: " 582 "%d:%d:%d:%d tag 0x%04x " 583 "flag %#x status %x\n", 584 __func__, 585 tmp_io->io_hdr.io_type, 586 tmp_io->io_hdr.msg_type, 587 tmp_io->scsiio.cdb[0], 588 tmp_io->io_hdr.nexus.initid.id, 589 tmp_io->io_hdr.nexus.targ_port, 590 tmp_io->io_hdr.nexus.targ_target.id, 591 tmp_io->io_hdr.nexus.targ_lun, 592 (tmp_io->io_hdr.io_type == 593 CTL_IO_TASK) ? 594 tmp_io->taskio.tag_num : 595 tmp_io->scsiio.tag_num, 596 tmp_io->io_hdr.flags, 597 tmp_io->io_hdr.status); 598 } 599#endif 600 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 601 ctl_enqueue_isc((union ctl_io *)ctsio); 602} 603 604/* 605 * ISC (Inter Shelf Communication) event handler. Events from the HA 606 * subsystem come in here. 607 */ 608static void 609ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 610{ 611 struct ctl_softc *softc; 612 union ctl_io *io; 613 struct ctl_prio *presio; 614 ctl_ha_status isc_status; 615 616 softc = control_softc; 617 io = NULL; 618 619 620#if 0 621 printf("CTL: Isc Msg event %d\n", event); 622#endif 623 if (event == CTL_HA_EVT_MSG_RECV) { 624 union ctl_ha_msg msg_info; 625 626 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 627 sizeof(msg_info), /*wait*/ 0); 628#if 0 629 printf("CTL: msg_type %d\n", msg_info.msg_type); 630#endif 631 if (isc_status != 0) { 632 printf("Error receiving message, status = %d\n", 633 isc_status); 634 return; 635 } 636 637 switch (msg_info.hdr.msg_type) { 638 case CTL_MSG_SERIALIZE: 639#if 0 640 printf("Serialize\n"); 641#endif 642 io = ctl_alloc_io_nowait(softc->othersc_pool); 643 if (io == NULL) { 644 printf("ctl_isc_event_handler: can't allocate " 645 "ctl_io!\n"); 646 /* Bad Juju */ 647 /* Need to set busy and send msg back */ 648 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 649 msg_info.hdr.status = CTL_SCSI_ERROR; 650 msg_info.scsi.scsi_status = SCSI_STATUS_BUSY; 651 msg_info.scsi.sense_len = 0; 652 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 653 sizeof(msg_info), 0) > CTL_HA_STATUS_SUCCESS){ 654 } 655 goto bailout; 656 } 657 ctl_zero_io(io); 658 // populate ctsio from msg_info 659 io->io_hdr.io_type = CTL_IO_SCSI; 660 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 661 io->io_hdr.original_sc = msg_info.hdr.original_sc; 662#if 0 663 printf("pOrig %x\n", (int)msg_info.original_sc); 664#endif 665 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 666 CTL_FLAG_IO_ACTIVE; 667 /* 668 * If we're in serialization-only mode, we don't 669 * want to go through full done processing. Thus 670 * the COPY flag. 671 * 672 * XXX KDM add another flag that is more specific. 673 */ 674 if (softc->ha_mode == CTL_HA_MODE_SER_ONLY) 675 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 676 io->io_hdr.nexus = msg_info.hdr.nexus; 677#if 0 678 printf("targ %d, port %d, iid %d, lun %d\n", 679 io->io_hdr.nexus.targ_target.id, 680 io->io_hdr.nexus.targ_port, 681 io->io_hdr.nexus.initid.id, 682 io->io_hdr.nexus.targ_lun); 683#endif 684 io->scsiio.tag_num = msg_info.scsi.tag_num; 685 io->scsiio.tag_type = msg_info.scsi.tag_type; 686 memcpy(io->scsiio.cdb, msg_info.scsi.cdb, 687 CTL_MAX_CDBLEN); 688 if (softc->ha_mode == CTL_HA_MODE_XFER) { 689 const struct ctl_cmd_entry *entry; 690 691 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 692 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 693 io->io_hdr.flags |= 694 entry->flags & CTL_FLAG_DATA_MASK; 695 } 696 ctl_enqueue_isc(io); 697 break; 698 699 /* Performed on the Originating SC, XFER mode only */ 700 case CTL_MSG_DATAMOVE: { 701 struct ctl_sg_entry *sgl; 702 int i, j; 703 704 io = msg_info.hdr.original_sc; 705 if (io == NULL) { 706 printf("%s: original_sc == NULL!\n", __func__); 707 /* XXX KDM do something here */ 708 break; 709 } 710 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 711 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 712 /* 713 * Keep track of this, we need to send it back over 714 * when the datamove is complete. 715 */ 716 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 717 718 if (msg_info.dt.sg_sequence == 0) { 719 /* 720 * XXX KDM we use the preallocated S/G list 721 * here, but we'll need to change this to 722 * dynamic allocation if we need larger S/G 723 * lists. 724 */ 725 if (msg_info.dt.kern_sg_entries > 726 sizeof(io->io_hdr.remote_sglist) / 727 sizeof(io->io_hdr.remote_sglist[0])) { 728 printf("%s: number of S/G entries " 729 "needed %u > allocated num %zd\n", 730 __func__, 731 msg_info.dt.kern_sg_entries, 732 sizeof(io->io_hdr.remote_sglist)/ 733 sizeof(io->io_hdr.remote_sglist[0])); 734 735 /* 736 * XXX KDM send a message back to 737 * the other side to shut down the 738 * DMA. The error will come back 739 * through via the normal channel. 740 */ 741 break; 742 } 743 sgl = io->io_hdr.remote_sglist; 744 memset(sgl, 0, 745 sizeof(io->io_hdr.remote_sglist)); 746 747 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 748 749 io->scsiio.kern_sg_entries = 750 msg_info.dt.kern_sg_entries; 751 io->scsiio.rem_sg_entries = 752 msg_info.dt.kern_sg_entries; 753 io->scsiio.kern_data_len = 754 msg_info.dt.kern_data_len; 755 io->scsiio.kern_total_len = 756 msg_info.dt.kern_total_len; 757 io->scsiio.kern_data_resid = 758 msg_info.dt.kern_data_resid; 759 io->scsiio.kern_rel_offset = 760 msg_info.dt.kern_rel_offset; 761 /* 762 * Clear out per-DMA flags. 763 */ 764 io->io_hdr.flags &= ~CTL_FLAG_RDMA_MASK; 765 /* 766 * Add per-DMA flags that are set for this 767 * particular DMA request. 768 */ 769 io->io_hdr.flags |= msg_info.dt.flags & 770 CTL_FLAG_RDMA_MASK; 771 } else 772 sgl = (struct ctl_sg_entry *) 773 io->scsiio.kern_data_ptr; 774 775 for (i = msg_info.dt.sent_sg_entries, j = 0; 776 i < (msg_info.dt.sent_sg_entries + 777 msg_info.dt.cur_sg_entries); i++, j++) { 778 sgl[i].addr = msg_info.dt.sg_list[j].addr; 779 sgl[i].len = msg_info.dt.sg_list[j].len; 780 781#if 0 782 printf("%s: L: %p,%d -> %p,%d j=%d, i=%d\n", 783 __func__, 784 msg_info.dt.sg_list[j].addr, 785 msg_info.dt.sg_list[j].len, 786 sgl[i].addr, sgl[i].len, j, i); 787#endif 788 } 789#if 0 790 memcpy(&sgl[msg_info.dt.sent_sg_entries], 791 msg_info.dt.sg_list, 792 sizeof(*sgl) * msg_info.dt.cur_sg_entries); 793#endif 794 795 /* 796 * If this is the last piece of the I/O, we've got 797 * the full S/G list. Queue processing in the thread. 798 * Otherwise wait for the next piece. 799 */ 800 if (msg_info.dt.sg_last != 0) 801 ctl_enqueue_isc(io); 802 break; 803 } 804 /* Performed on the Serializing (primary) SC, XFER mode only */ 805 case CTL_MSG_DATAMOVE_DONE: { 806 if (msg_info.hdr.serializing_sc == NULL) { 807 printf("%s: serializing_sc == NULL!\n", 808 __func__); 809 /* XXX KDM now what? */ 810 break; 811 } 812 /* 813 * We grab the sense information here in case 814 * there was a failure, so we can return status 815 * back to the initiator. 816 */ 817 io = msg_info.hdr.serializing_sc; 818 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 819 io->io_hdr.status = msg_info.hdr.status; 820 io->scsiio.scsi_status = msg_info.scsi.scsi_status; 821 io->scsiio.sense_len = msg_info.scsi.sense_len; 822 io->scsiio.sense_residual =msg_info.scsi.sense_residual; 823 io->io_hdr.port_status = msg_info.scsi.fetd_status; 824 io->scsiio.residual = msg_info.scsi.residual; 825 memcpy(&io->scsiio.sense_data,&msg_info.scsi.sense_data, 826 sizeof(io->scsiio.sense_data)); 827 ctl_enqueue_isc(io); 828 break; 829 } 830 831 /* Preformed on Originating SC, SER_ONLY mode */ 832 case CTL_MSG_R2R: 833 io = msg_info.hdr.original_sc; 834 if (io == NULL) { 835 printf("%s: Major Bummer\n", __func__); 836 return; 837 } else { 838#if 0 839 printf("pOrig %x\n",(int) ctsio); 840#endif 841 } 842 io->io_hdr.msg_type = CTL_MSG_R2R; 843 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 844 ctl_enqueue_isc(io); 845 break; 846 847 /* 848 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 849 * mode. 850 * Performed on the Originating (i.e. secondary) SC in XFER 851 * mode 852 */ 853 case CTL_MSG_FINISH_IO: 854 if (softc->ha_mode == CTL_HA_MODE_XFER) 855 ctl_isc_handler_finish_xfer(softc, 856 &msg_info); 857 else 858 ctl_isc_handler_finish_ser_only(softc, 859 &msg_info); 860 break; 861 862 /* Preformed on Originating SC */ 863 case CTL_MSG_BAD_JUJU: 864 io = msg_info.hdr.original_sc; 865 if (io == NULL) { 866 printf("%s: Bad JUJU!, original_sc is NULL!\n", 867 __func__); 868 break; 869 } 870 ctl_copy_sense_data(&msg_info, io); 871 /* 872 * IO should have already been cleaned up on other 873 * SC so clear this flag so we won't send a message 874 * back to finish the IO there. 875 */ 876 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 877 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 878 879 /* io = msg_info.hdr.serializing_sc; */ 880 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 881 ctl_enqueue_isc(io); 882 break; 883 884 /* Handle resets sent from the other side */ 885 case CTL_MSG_MANAGE_TASKS: { 886 struct ctl_taskio *taskio; 887 taskio = (struct ctl_taskio *)ctl_alloc_io_nowait( 888 softc->othersc_pool); 889 if (taskio == NULL) { 890 printf("ctl_isc_event_handler: can't allocate " 891 "ctl_io!\n"); 892 /* Bad Juju */ 893 /* should I just call the proper reset func 894 here??? */ 895 goto bailout; 896 } 897 ctl_zero_io((union ctl_io *)taskio); 898 taskio->io_hdr.io_type = CTL_IO_TASK; 899 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 900 taskio->io_hdr.nexus = msg_info.hdr.nexus; 901 taskio->task_action = msg_info.task.task_action; 902 taskio->tag_num = msg_info.task.tag_num; 903 taskio->tag_type = msg_info.task.tag_type; 904#ifdef CTL_TIME_IO 905 taskio->io_hdr.start_time = time_uptime; 906 getbintime(&taskio->io_hdr.start_bt); 907#if 0 908 cs_prof_gettime(&taskio->io_hdr.start_ticks); 909#endif 910#endif /* CTL_TIME_IO */ 911 ctl_run_task((union ctl_io *)taskio); 912 break; 913 } 914 /* Persistent Reserve action which needs attention */ 915 case CTL_MSG_PERS_ACTION: 916 presio = (struct ctl_prio *)ctl_alloc_io_nowait( 917 softc->othersc_pool); 918 if (presio == NULL) { 919 printf("ctl_isc_event_handler: can't allocate " 920 "ctl_io!\n"); 921 /* Bad Juju */ 922 /* Need to set busy and send msg back */ 923 goto bailout; 924 } 925 ctl_zero_io((union ctl_io *)presio); 926 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 927 presio->pr_msg = msg_info.pr; 928 ctl_enqueue_isc((union ctl_io *)presio); 929 break; 930 case CTL_MSG_SYNC_FE: 931 rcv_sync_msg = 1; 932 break; 933 default: 934 printf("How did I get here?\n"); 935 } 936 } else if (event == CTL_HA_EVT_MSG_SENT) { 937 if (param != CTL_HA_STATUS_SUCCESS) { 938 printf("Bad status from ctl_ha_msg_send status %d\n", 939 param); 940 } 941 return; 942 } else if (event == CTL_HA_EVT_DISCONNECT) { 943 printf("CTL: Got a disconnect from Isc\n"); 944 return; 945 } else { 946 printf("ctl_isc_event_handler: Unknown event %d\n", event); 947 return; 948 } 949 950bailout: 951 return; 952} 953 954static void 955ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 956{ 957 struct scsi_sense_data *sense; 958 959 sense = &dest->scsiio.sense_data; 960 bcopy(&src->scsi.sense_data, sense, sizeof(*sense)); 961 dest->scsiio.scsi_status = src->scsi.scsi_status; 962 dest->scsiio.sense_len = src->scsi.sense_len; 963 dest->io_hdr.status = src->hdr.status; 964} 965 966static void 967ctl_est_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 968{ 969 ctl_ua_type *pu; 970 971 mtx_assert(&lun->lun_lock, MA_OWNED); 972 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 973 if (pu == NULL) 974 return; 975 pu[initidx % CTL_MAX_INIT_PER_PORT] |= ua; 976} 977 978static void 979ctl_est_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 980{ 981 int i, j; 982 983 mtx_assert(&lun->lun_lock, MA_OWNED); 984 for (i = 0; i < CTL_MAX_PORTS; i++) { 985 if (lun->pending_ua[i] == NULL) 986 continue; 987 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 988 if (i * CTL_MAX_INIT_PER_PORT + j == except) 989 continue; 990 lun->pending_ua[i][j] |= ua; 991 } 992 } 993} 994 995static void 996ctl_clr_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 997{ 998 ctl_ua_type *pu; 999 1000 mtx_assert(&lun->lun_lock, MA_OWNED); 1001 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1002 if (pu == NULL) 1003 return; 1004 pu[initidx % CTL_MAX_INIT_PER_PORT] &= ~ua; 1005} 1006 1007static void 1008ctl_clr_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1009{ 1010 int i, j; 1011 1012 mtx_assert(&lun->lun_lock, MA_OWNED); 1013 for (i = 0; i < CTL_MAX_PORTS; i++) { 1014 if (lun->pending_ua[i] == NULL) 1015 continue; 1016 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 1017 if (i * CTL_MAX_INIT_PER_PORT + j == except) 1018 continue; 1019 lun->pending_ua[i][j] &= ~ua; 1020 } 1021 } 1022} 1023 1024static int 1025ctl_ha_state_sysctl(SYSCTL_HANDLER_ARGS) 1026{ 1027 struct ctl_softc *softc = (struct ctl_softc *)arg1; 1028 struct ctl_lun *lun; 1029 int error, value; 1030 1031 if (softc->flags & CTL_FLAG_ACTIVE_SHELF) 1032 value = 0; 1033 else 1034 value = 1; 1035 1036 error = sysctl_handle_int(oidp, &value, 0, req); 1037 if ((error != 0) || (req->newptr == NULL)) 1038 return (error); 1039 1040 mtx_lock(&softc->ctl_lock); 1041 if (value == 0) 1042 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1043 else 1044 softc->flags &= ~CTL_FLAG_ACTIVE_SHELF; 1045 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1046 mtx_lock(&lun->lun_lock); 1047 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 1048 mtx_unlock(&lun->lun_lock); 1049 } 1050 mtx_unlock(&softc->ctl_lock); 1051 return (0); 1052} 1053 1054static int 1055ctl_init(void) 1056{ 1057 struct ctl_softc *softc; 1058 void *other_pool; 1059 struct ctl_port *port; 1060 int i, error, retval; 1061 //int isc_retval; 1062 1063 retval = 0; 1064 ctl_pause_rtr = 0; 1065 rcv_sync_msg = 0; 1066 1067 control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 1068 M_WAITOK | M_ZERO); 1069 softc = control_softc; 1070 1071 softc->dev = make_dev(&ctl_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, 1072 "cam/ctl"); 1073 1074 softc->dev->si_drv1 = softc; 1075 1076 /* 1077 * By default, return a "bad LUN" peripheral qualifier for unknown 1078 * LUNs. The user can override this default using the tunable or 1079 * sysctl. See the comment in ctl_inquiry_std() for more details. 1080 */ 1081 softc->inquiry_pq_no_lun = 1; 1082 TUNABLE_INT_FETCH("kern.cam.ctl.inquiry_pq_no_lun", 1083 &softc->inquiry_pq_no_lun); 1084 sysctl_ctx_init(&softc->sysctl_ctx); 1085 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1086 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 1087 CTLFLAG_RD, 0, "CAM Target Layer"); 1088 1089 if (softc->sysctl_tree == NULL) { 1090 printf("%s: unable to allocate sysctl tree\n", __func__); 1091 destroy_dev(softc->dev); 1092 free(control_softc, M_DEVBUF); 1093 control_softc = NULL; 1094 return (ENOMEM); 1095 } 1096 1097 SYSCTL_ADD_INT(&softc->sysctl_ctx, 1098 SYSCTL_CHILDREN(softc->sysctl_tree), OID_AUTO, 1099 "inquiry_pq_no_lun", CTLFLAG_RW, 1100 &softc->inquiry_pq_no_lun, 0, 1101 "Report no lun possible for invalid LUNs"); 1102 1103 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 1104 softc->io_zone = uma_zcreate("CTL IO", sizeof(union ctl_io), 1105 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); 1106 softc->open_count = 0; 1107 1108 /* 1109 * Default to actually sending a SYNCHRONIZE CACHE command down to 1110 * the drive. 1111 */ 1112 softc->flags = CTL_FLAG_REAL_SYNC; 1113 1114 /* 1115 * In Copan's HA scheme, the "master" and "slave" roles are 1116 * figured out through the slot the controller is in. Although it 1117 * is an active/active system, someone has to be in charge. 1118 */ 1119 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1120 OID_AUTO, "ha_id", CTLFLAG_RDTUN, &softc->ha_id, 0, 1121 "HA head ID (0 - no HA)"); 1122 if (softc->ha_id == 0) { 1123 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1124 softc->is_single = 1; 1125 softc->port_offset = 0; 1126 } else 1127 softc->port_offset = (softc->ha_id - 1) * CTL_MAX_PORTS; 1128 softc->persis_offset = softc->port_offset * CTL_MAX_INIT_PER_PORT; 1129 1130 /* 1131 * XXX KDM need to figure out where we want to get our target ID 1132 * and WWID. Is it different on each port? 1133 */ 1134 softc->target.id = 0; 1135 softc->target.wwid[0] = 0x12345678; 1136 softc->target.wwid[1] = 0x87654321; 1137 STAILQ_INIT(&softc->lun_list); 1138 STAILQ_INIT(&softc->pending_lun_queue); 1139 STAILQ_INIT(&softc->fe_list); 1140 STAILQ_INIT(&softc->port_list); 1141 STAILQ_INIT(&softc->be_list); 1142 ctl_tpc_init(softc); 1143 1144 if (ctl_pool_create(softc, "othersc", CTL_POOL_ENTRIES_OTHER_SC, 1145 &other_pool) != 0) 1146 { 1147 printf("ctl: can't allocate %d entry other SC pool, " 1148 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1149 return (ENOMEM); 1150 } 1151 softc->othersc_pool = other_pool; 1152 1153 if (worker_threads <= 0) 1154 worker_threads = max(1, mp_ncpus / 4); 1155 if (worker_threads > CTL_MAX_THREADS) 1156 worker_threads = CTL_MAX_THREADS; 1157 1158 for (i = 0; i < worker_threads; i++) { 1159 struct ctl_thread *thr = &softc->threads[i]; 1160 1161 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1162 thr->ctl_softc = softc; 1163 STAILQ_INIT(&thr->incoming_queue); 1164 STAILQ_INIT(&thr->rtr_queue); 1165 STAILQ_INIT(&thr->done_queue); 1166 STAILQ_INIT(&thr->isc_queue); 1167 1168 error = kproc_kthread_add(ctl_work_thread, thr, 1169 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1170 if (error != 0) { 1171 printf("error creating CTL work thread!\n"); 1172 ctl_pool_free(other_pool); 1173 return (error); 1174 } 1175 } 1176 error = kproc_kthread_add(ctl_lun_thread, softc, 1177 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1178 if (error != 0) { 1179 printf("error creating CTL lun thread!\n"); 1180 ctl_pool_free(other_pool); 1181 return (error); 1182 } 1183 error = kproc_kthread_add(ctl_thresh_thread, softc, 1184 &softc->ctl_proc, NULL, 0, 0, "ctl", "thresh"); 1185 if (error != 0) { 1186 printf("error creating CTL threshold thread!\n"); 1187 ctl_pool_free(other_pool); 1188 return (error); 1189 } 1190 if (bootverbose) 1191 printf("ctl: CAM Target Layer loaded\n"); 1192 1193 /* 1194 * Initialize the ioctl front end. 1195 */ 1196 ctl_frontend_register(&ioctl_frontend); 1197 port = &softc->ioctl_info.port; 1198 port->frontend = &ioctl_frontend; 1199 sprintf(softc->ioctl_info.port_name, "ioctl"); 1200 port->port_type = CTL_PORT_IOCTL; 1201 port->num_requested_ctl_io = 100; 1202 port->port_name = softc->ioctl_info.port_name; 1203 port->port_online = ctl_ioctl_online; 1204 port->port_offline = ctl_ioctl_offline; 1205 port->onoff_arg = &softc->ioctl_info; 1206 port->lun_enable = ctl_ioctl_lun_enable; 1207 port->lun_disable = ctl_ioctl_lun_disable; 1208 port->targ_lun_arg = &softc->ioctl_info; 1209 port->fe_datamove = ctl_ioctl_datamove; 1210 port->fe_done = ctl_ioctl_done; 1211 port->max_targets = 15; 1212 port->max_target_id = 15; 1213 1214 if (ctl_port_register(&softc->ioctl_info.port) != 0) { 1215 printf("ctl: ioctl front end registration failed, will " 1216 "continue anyway\n"); 1217 } 1218 1219 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1220 OID_AUTO, "ha_state", CTLTYPE_INT | CTLFLAG_RWTUN, 1221 softc, 0, ctl_ha_state_sysctl, "I", "HA state for this head"); 1222 1223#ifdef CTL_IO_DELAY 1224 if (sizeof(struct callout) > CTL_TIMER_BYTES) { 1225 printf("sizeof(struct callout) %zd > CTL_TIMER_BYTES %zd\n", 1226 sizeof(struct callout), CTL_TIMER_BYTES); 1227 return (EINVAL); 1228 } 1229#endif /* CTL_IO_DELAY */ 1230 1231 return (0); 1232} 1233 1234void 1235ctl_shutdown(void) 1236{ 1237 struct ctl_softc *softc; 1238 struct ctl_lun *lun, *next_lun; 1239 1240 softc = (struct ctl_softc *)control_softc; 1241 1242 if (ctl_port_deregister(&softc->ioctl_info.port) != 0) 1243 printf("ctl: ioctl front end deregistration failed\n"); 1244 1245 mtx_lock(&softc->ctl_lock); 1246 1247 /* 1248 * Free up each LUN. 1249 */ 1250 for (lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; lun = next_lun){ 1251 next_lun = STAILQ_NEXT(lun, links); 1252 ctl_free_lun(lun); 1253 } 1254 1255 mtx_unlock(&softc->ctl_lock); 1256 1257 ctl_frontend_deregister(&ioctl_frontend); 1258 1259#if 0 1260 ctl_shutdown_thread(softc->work_thread); 1261 mtx_destroy(&softc->queue_lock); 1262#endif 1263 1264 ctl_tpc_shutdown(softc); 1265 uma_zdestroy(softc->io_zone); 1266 mtx_destroy(&softc->ctl_lock); 1267 1268 destroy_dev(softc->dev); 1269 1270 sysctl_ctx_free(&softc->sysctl_ctx); 1271 1272 free(control_softc, M_DEVBUF); 1273 control_softc = NULL; 1274 1275 if (bootverbose) 1276 printf("ctl: CAM Target Layer unloaded\n"); 1277} 1278 1279static int 1280ctl_module_event_handler(module_t mod, int what, void *arg) 1281{ 1282 1283 switch (what) { 1284 case MOD_LOAD: 1285 return (ctl_init()); 1286 case MOD_UNLOAD: 1287 return (EBUSY); 1288 default: 1289 return (EOPNOTSUPP); 1290 } 1291} 1292 1293/* 1294 * XXX KDM should we do some access checks here? Bump a reference count to 1295 * prevent a CTL module from being unloaded while someone has it open? 1296 */ 1297static int 1298ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1299{ 1300 return (0); 1301} 1302 1303static int 1304ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1305{ 1306 return (0); 1307} 1308 1309int 1310ctl_port_enable(ctl_port_type port_type) 1311{ 1312 struct ctl_softc *softc = control_softc; 1313 struct ctl_port *port; 1314 1315 if (softc->is_single == 0) { 1316 union ctl_ha_msg msg_info; 1317 int isc_retval; 1318 1319#if 0 1320 printf("%s: HA mode, synchronizing frontend enable\n", 1321 __func__); 1322#endif 1323 msg_info.hdr.msg_type = CTL_MSG_SYNC_FE; 1324 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1325 sizeof(msg_info), 1 )) > CTL_HA_STATUS_SUCCESS) { 1326 printf("Sync msg send error retval %d\n", isc_retval); 1327 } 1328 if (!rcv_sync_msg) { 1329 isc_retval=ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 1330 sizeof(msg_info), 1); 1331 } 1332#if 0 1333 printf("CTL:Frontend Enable\n"); 1334 } else { 1335 printf("%s: single mode, skipping frontend synchronization\n", 1336 __func__); 1337#endif 1338 } 1339 1340 STAILQ_FOREACH(port, &softc->port_list, links) { 1341 if (port_type & port->port_type) 1342 { 1343#if 0 1344 printf("port %d\n", port->targ_port); 1345#endif 1346 ctl_port_online(port); 1347 } 1348 } 1349 1350 return (0); 1351} 1352 1353int 1354ctl_port_disable(ctl_port_type port_type) 1355{ 1356 struct ctl_softc *softc; 1357 struct ctl_port *port; 1358 1359 softc = control_softc; 1360 1361 STAILQ_FOREACH(port, &softc->port_list, links) { 1362 if (port_type & port->port_type) 1363 ctl_port_offline(port); 1364 } 1365 1366 return (0); 1367} 1368 1369/* 1370 * Returns 0 for success, 1 for failure. 1371 * Currently the only failure mode is if there aren't enough entries 1372 * allocated. So, in case of a failure, look at num_entries_dropped, 1373 * reallocate and try again. 1374 */ 1375int 1376ctl_port_list(struct ctl_port_entry *entries, int num_entries_alloced, 1377 int *num_entries_filled, int *num_entries_dropped, 1378 ctl_port_type port_type, int no_virtual) 1379{ 1380 struct ctl_softc *softc; 1381 struct ctl_port *port; 1382 int entries_dropped, entries_filled; 1383 int retval; 1384 int i; 1385 1386 softc = control_softc; 1387 1388 retval = 0; 1389 entries_filled = 0; 1390 entries_dropped = 0; 1391 1392 i = 0; 1393 mtx_lock(&softc->ctl_lock); 1394 STAILQ_FOREACH(port, &softc->port_list, links) { 1395 struct ctl_port_entry *entry; 1396 1397 if ((port->port_type & port_type) == 0) 1398 continue; 1399 1400 if ((no_virtual != 0) 1401 && (port->virtual_port != 0)) 1402 continue; 1403 1404 if (entries_filled >= num_entries_alloced) { 1405 entries_dropped++; 1406 continue; 1407 } 1408 entry = &entries[i]; 1409 1410 entry->port_type = port->port_type; 1411 strlcpy(entry->port_name, port->port_name, 1412 sizeof(entry->port_name)); 1413 entry->physical_port = port->physical_port; 1414 entry->virtual_port = port->virtual_port; 1415 entry->wwnn = port->wwnn; 1416 entry->wwpn = port->wwpn; 1417 1418 i++; 1419 entries_filled++; 1420 } 1421 1422 mtx_unlock(&softc->ctl_lock); 1423 1424 if (entries_dropped > 0) 1425 retval = 1; 1426 1427 *num_entries_dropped = entries_dropped; 1428 *num_entries_filled = entries_filled; 1429 1430 return (retval); 1431} 1432 1433static void 1434ctl_ioctl_online(void *arg) 1435{ 1436 struct ctl_ioctl_info *ioctl_info; 1437 1438 ioctl_info = (struct ctl_ioctl_info *)arg; 1439 1440 ioctl_info->flags |= CTL_IOCTL_FLAG_ENABLED; 1441} 1442 1443static void 1444ctl_ioctl_offline(void *arg) 1445{ 1446 struct ctl_ioctl_info *ioctl_info; 1447 1448 ioctl_info = (struct ctl_ioctl_info *)arg; 1449 1450 ioctl_info->flags &= ~CTL_IOCTL_FLAG_ENABLED; 1451} 1452 1453/* 1454 * Remove an initiator by port number and initiator ID. 1455 * Returns 0 for success, -1 for failure. 1456 */ 1457int 1458ctl_remove_initiator(struct ctl_port *port, int iid) 1459{ 1460 struct ctl_softc *softc = control_softc; 1461 1462 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1463 1464 if (iid > CTL_MAX_INIT_PER_PORT) { 1465 printf("%s: initiator ID %u > maximun %u!\n", 1466 __func__, iid, CTL_MAX_INIT_PER_PORT); 1467 return (-1); 1468 } 1469 1470 mtx_lock(&softc->ctl_lock); 1471 port->wwpn_iid[iid].in_use--; 1472 port->wwpn_iid[iid].last_use = time_uptime; 1473 mtx_unlock(&softc->ctl_lock); 1474 1475 return (0); 1476} 1477 1478/* 1479 * Add an initiator to the initiator map. 1480 * Returns iid for success, < 0 for failure. 1481 */ 1482int 1483ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 1484{ 1485 struct ctl_softc *softc = control_softc; 1486 time_t best_time; 1487 int i, best; 1488 1489 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1490 1491 if (iid >= CTL_MAX_INIT_PER_PORT) { 1492 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 1493 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 1494 free(name, M_CTL); 1495 return (-1); 1496 } 1497 1498 mtx_lock(&softc->ctl_lock); 1499 1500 if (iid < 0 && (wwpn != 0 || name != NULL)) { 1501 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1502 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 1503 iid = i; 1504 break; 1505 } 1506 if (name != NULL && port->wwpn_iid[i].name != NULL && 1507 strcmp(name, port->wwpn_iid[i].name) == 0) { 1508 iid = i; 1509 break; 1510 } 1511 } 1512 } 1513 1514 if (iid < 0) { 1515 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1516 if (port->wwpn_iid[i].in_use == 0 && 1517 port->wwpn_iid[i].wwpn == 0 && 1518 port->wwpn_iid[i].name == NULL) { 1519 iid = i; 1520 break; 1521 } 1522 } 1523 } 1524 1525 if (iid < 0) { 1526 best = -1; 1527 best_time = INT32_MAX; 1528 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1529 if (port->wwpn_iid[i].in_use == 0) { 1530 if (port->wwpn_iid[i].last_use < best_time) { 1531 best = i; 1532 best_time = port->wwpn_iid[i].last_use; 1533 } 1534 } 1535 } 1536 iid = best; 1537 } 1538 1539 if (iid < 0) { 1540 mtx_unlock(&softc->ctl_lock); 1541 free(name, M_CTL); 1542 return (-2); 1543 } 1544 1545 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 1546 /* 1547 * This is not an error yet. 1548 */ 1549 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 1550#if 0 1551 printf("%s: port %d iid %u WWPN %#jx arrived" 1552 " again\n", __func__, port->targ_port, 1553 iid, (uintmax_t)wwpn); 1554#endif 1555 goto take; 1556 } 1557 if (name != NULL && port->wwpn_iid[iid].name != NULL && 1558 strcmp(name, port->wwpn_iid[iid].name) == 0) { 1559#if 0 1560 printf("%s: port %d iid %u name '%s' arrived" 1561 " again\n", __func__, port->targ_port, 1562 iid, name); 1563#endif 1564 goto take; 1565 } 1566 1567 /* 1568 * This is an error, but what do we do about it? The 1569 * driver is telling us we have a new WWPN for this 1570 * initiator ID, so we pretty much need to use it. 1571 */ 1572 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 1573 " but WWPN %#jx '%s' is still at that address\n", 1574 __func__, port->targ_port, iid, wwpn, name, 1575 (uintmax_t)port->wwpn_iid[iid].wwpn, 1576 port->wwpn_iid[iid].name); 1577 1578 /* 1579 * XXX KDM clear have_ca and ua_pending on each LUN for 1580 * this initiator. 1581 */ 1582 } 1583take: 1584 free(port->wwpn_iid[iid].name, M_CTL); 1585 port->wwpn_iid[iid].name = name; 1586 port->wwpn_iid[iid].wwpn = wwpn; 1587 port->wwpn_iid[iid].in_use++; 1588 mtx_unlock(&softc->ctl_lock); 1589 1590 return (iid); 1591} 1592 1593static int 1594ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 1595{ 1596 int len; 1597 1598 switch (port->port_type) { 1599 case CTL_PORT_FC: 1600 { 1601 struct scsi_transportid_fcp *id = 1602 (struct scsi_transportid_fcp *)buf; 1603 if (port->wwpn_iid[iid].wwpn == 0) 1604 return (0); 1605 memset(id, 0, sizeof(*id)); 1606 id->format_protocol = SCSI_PROTO_FC; 1607 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 1608 return (sizeof(*id)); 1609 } 1610 case CTL_PORT_ISCSI: 1611 { 1612 struct scsi_transportid_iscsi_port *id = 1613 (struct scsi_transportid_iscsi_port *)buf; 1614 if (port->wwpn_iid[iid].name == NULL) 1615 return (0); 1616 memset(id, 0, 256); 1617 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 1618 SCSI_PROTO_ISCSI; 1619 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 1620 len = roundup2(min(len, 252), 4); 1621 scsi_ulto2b(len, id->additional_length); 1622 return (sizeof(*id) + len); 1623 } 1624 case CTL_PORT_SAS: 1625 { 1626 struct scsi_transportid_sas *id = 1627 (struct scsi_transportid_sas *)buf; 1628 if (port->wwpn_iid[iid].wwpn == 0) 1629 return (0); 1630 memset(id, 0, sizeof(*id)); 1631 id->format_protocol = SCSI_PROTO_SAS; 1632 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 1633 return (sizeof(*id)); 1634 } 1635 default: 1636 { 1637 struct scsi_transportid_spi *id = 1638 (struct scsi_transportid_spi *)buf; 1639 memset(id, 0, sizeof(*id)); 1640 id->format_protocol = SCSI_PROTO_SPI; 1641 scsi_ulto2b(iid, id->scsi_addr); 1642 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 1643 return (sizeof(*id)); 1644 } 1645 } 1646} 1647 1648static int 1649ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id) 1650{ 1651 return (0); 1652} 1653 1654static int 1655ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id) 1656{ 1657 return (0); 1658} 1659 1660/* 1661 * Data movement routine for the CTL ioctl frontend port. 1662 */ 1663static int 1664ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio) 1665{ 1666 struct ctl_sg_entry *ext_sglist, *kern_sglist; 1667 struct ctl_sg_entry ext_entry, kern_entry; 1668 int ext_sglen, ext_sg_entries, kern_sg_entries; 1669 int ext_sg_start, ext_offset; 1670 int len_to_copy, len_copied; 1671 int kern_watermark, ext_watermark; 1672 int ext_sglist_malloced; 1673 int i, j; 1674 1675 ext_sglist_malloced = 0; 1676 ext_sg_start = 0; 1677 ext_offset = 0; 1678 1679 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove\n")); 1680 1681 /* 1682 * If this flag is set, fake the data transfer. 1683 */ 1684 if (ctsio->io_hdr.flags & CTL_FLAG_NO_DATAMOVE) { 1685 ctsio->ext_data_filled = ctsio->ext_data_len; 1686 goto bailout; 1687 } 1688 1689 /* 1690 * To simplify things here, if we have a single buffer, stick it in 1691 * a S/G entry and just make it a single entry S/G list. 1692 */ 1693 if (ctsio->io_hdr.flags & CTL_FLAG_EDPTR_SGLIST) { 1694 int len_seen; 1695 1696 ext_sglen = ctsio->ext_sg_entries * sizeof(*ext_sglist); 1697 1698 ext_sglist = (struct ctl_sg_entry *)malloc(ext_sglen, M_CTL, 1699 M_WAITOK); 1700 ext_sglist_malloced = 1; 1701 if (copyin(ctsio->ext_data_ptr, ext_sglist, 1702 ext_sglen) != 0) { 1703 ctl_set_internal_failure(ctsio, 1704 /*sks_valid*/ 0, 1705 /*retry_count*/ 0); 1706 goto bailout; 1707 } 1708 ext_sg_entries = ctsio->ext_sg_entries; 1709 len_seen = 0; 1710 for (i = 0; i < ext_sg_entries; i++) { 1711 if ((len_seen + ext_sglist[i].len) >= 1712 ctsio->ext_data_filled) { 1713 ext_sg_start = i; 1714 ext_offset = ctsio->ext_data_filled - len_seen; 1715 break; 1716 } 1717 len_seen += ext_sglist[i].len; 1718 } 1719 } else { 1720 ext_sglist = &ext_entry; 1721 ext_sglist->addr = ctsio->ext_data_ptr; 1722 ext_sglist->len = ctsio->ext_data_len; 1723 ext_sg_entries = 1; 1724 ext_sg_start = 0; 1725 ext_offset = ctsio->ext_data_filled; 1726 } 1727 1728 if (ctsio->kern_sg_entries > 0) { 1729 kern_sglist = (struct ctl_sg_entry *)ctsio->kern_data_ptr; 1730 kern_sg_entries = ctsio->kern_sg_entries; 1731 } else { 1732 kern_sglist = &kern_entry; 1733 kern_sglist->addr = ctsio->kern_data_ptr; 1734 kern_sglist->len = ctsio->kern_data_len; 1735 kern_sg_entries = 1; 1736 } 1737 1738 1739 kern_watermark = 0; 1740 ext_watermark = ext_offset; 1741 len_copied = 0; 1742 for (i = ext_sg_start, j = 0; 1743 i < ext_sg_entries && j < kern_sg_entries;) { 1744 uint8_t *ext_ptr, *kern_ptr; 1745 1746 len_to_copy = MIN(ext_sglist[i].len - ext_watermark, 1747 kern_sglist[j].len - kern_watermark); 1748 1749 ext_ptr = (uint8_t *)ext_sglist[i].addr; 1750 ext_ptr = ext_ptr + ext_watermark; 1751 if (ctsio->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 1752 /* 1753 * XXX KDM fix this! 1754 */ 1755 panic("need to implement bus address support"); 1756#if 0 1757 kern_ptr = bus_to_virt(kern_sglist[j].addr); 1758#endif 1759 } else 1760 kern_ptr = (uint8_t *)kern_sglist[j].addr; 1761 kern_ptr = kern_ptr + kern_watermark; 1762 1763 kern_watermark += len_to_copy; 1764 ext_watermark += len_to_copy; 1765 1766 if ((ctsio->io_hdr.flags & CTL_FLAG_DATA_MASK) == 1767 CTL_FLAG_DATA_IN) { 1768 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1769 "bytes to user\n", len_to_copy)); 1770 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1771 "to %p\n", kern_ptr, ext_ptr)); 1772 if (copyout(kern_ptr, ext_ptr, len_to_copy) != 0) { 1773 ctl_set_internal_failure(ctsio, 1774 /*sks_valid*/ 0, 1775 /*retry_count*/ 0); 1776 goto bailout; 1777 } 1778 } else { 1779 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1780 "bytes from user\n", len_to_copy)); 1781 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1782 "to %p\n", ext_ptr, kern_ptr)); 1783 if (copyin(ext_ptr, kern_ptr, len_to_copy)!= 0){ 1784 ctl_set_internal_failure(ctsio, 1785 /*sks_valid*/ 0, 1786 /*retry_count*/0); 1787 goto bailout; 1788 } 1789 } 1790 1791 len_copied += len_to_copy; 1792 1793 if (ext_sglist[i].len == ext_watermark) { 1794 i++; 1795 ext_watermark = 0; 1796 } 1797 1798 if (kern_sglist[j].len == kern_watermark) { 1799 j++; 1800 kern_watermark = 0; 1801 } 1802 } 1803 1804 ctsio->ext_data_filled += len_copied; 1805 1806 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_sg_entries: %d, " 1807 "kern_sg_entries: %d\n", ext_sg_entries, 1808 kern_sg_entries)); 1809 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_data_len = %d, " 1810 "kern_data_len = %d\n", ctsio->ext_data_len, 1811 ctsio->kern_data_len)); 1812 1813 1814 /* XXX KDM set residual?? */ 1815bailout: 1816 1817 if (ext_sglist_malloced != 0) 1818 free(ext_sglist, M_CTL); 1819 1820 return (CTL_RETVAL_COMPLETE); 1821} 1822 1823/* 1824 * Serialize a command that went down the "wrong" side, and so was sent to 1825 * this controller for execution. The logic is a little different than the 1826 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 1827 * sent back to the other side, but in the success case, we execute the 1828 * command on this side (XFER mode) or tell the other side to execute it 1829 * (SER_ONLY mode). 1830 */ 1831static int 1832ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 1833{ 1834 struct ctl_softc *softc; 1835 union ctl_ha_msg msg_info; 1836 struct ctl_lun *lun; 1837 int retval = 0; 1838 uint32_t targ_lun; 1839 1840 softc = control_softc; 1841 1842 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 1843 lun = softc->ctl_luns[targ_lun]; 1844 if (lun==NULL) 1845 { 1846 /* 1847 * Why isn't LUN defined? The other side wouldn't 1848 * send a cmd if the LUN is undefined. 1849 */ 1850 printf("%s: Bad JUJU!, LUN is NULL!\n", __func__); 1851 1852 /* "Logical unit not supported" */ 1853 ctl_set_sense_data(&msg_info.scsi.sense_data, 1854 lun, 1855 /*sense_format*/SSD_TYPE_NONE, 1856 /*current_error*/ 1, 1857 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1858 /*asc*/ 0x25, 1859 /*ascq*/ 0x00, 1860 SSD_ELEM_NONE); 1861 1862 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1863 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1864 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1865 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1866 msg_info.hdr.serializing_sc = NULL; 1867 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1868 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1869 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1870 } 1871 return(1); 1872 1873 } 1874 1875 mtx_lock(&lun->lun_lock); 1876 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1877 1878 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 1879 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 1880 ooa_links))) { 1881 case CTL_ACTION_BLOCK: 1882 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 1883 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 1884 blocked_links); 1885 break; 1886 case CTL_ACTION_PASS: 1887 case CTL_ACTION_SKIP: 1888 if (softc->ha_mode == CTL_HA_MODE_XFER) { 1889 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 1890 ctl_enqueue_rtr((union ctl_io *)ctsio); 1891 } else { 1892 1893 /* send msg back to other side */ 1894 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1895 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 1896 msg_info.hdr.msg_type = CTL_MSG_R2R; 1897#if 0 1898 printf("2. pOrig %x\n", (int)msg_info.hdr.original_sc); 1899#endif 1900 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1901 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1902 } 1903 } 1904 break; 1905 case CTL_ACTION_OVERLAP: 1906 /* OVERLAPPED COMMANDS ATTEMPTED */ 1907 ctl_set_sense_data(&msg_info.scsi.sense_data, 1908 lun, 1909 /*sense_format*/SSD_TYPE_NONE, 1910 /*current_error*/ 1, 1911 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1912 /*asc*/ 0x4E, 1913 /*ascq*/ 0x00, 1914 SSD_ELEM_NONE); 1915 1916 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1917 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1918 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1919 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1920 msg_info.hdr.serializing_sc = NULL; 1921 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1922#if 0 1923 printf("BAD JUJU:Major Bummer Overlap\n"); 1924#endif 1925 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1926 retval = 1; 1927 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1928 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1929 } 1930 break; 1931 case CTL_ACTION_OVERLAP_TAG: 1932 /* TAGGED OVERLAPPED COMMANDS (NN = QUEUE TAG) */ 1933 ctl_set_sense_data(&msg_info.scsi.sense_data, 1934 lun, 1935 /*sense_format*/SSD_TYPE_NONE, 1936 /*current_error*/ 1, 1937 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1938 /*asc*/ 0x4D, 1939 /*ascq*/ ctsio->tag_num & 0xff, 1940 SSD_ELEM_NONE); 1941 1942 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1943 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1944 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1945 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1946 msg_info.hdr.serializing_sc = NULL; 1947 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1948#if 0 1949 printf("BAD JUJU:Major Bummer Overlap Tag\n"); 1950#endif 1951 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1952 retval = 1; 1953 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1954 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1955 } 1956 break; 1957 case CTL_ACTION_ERROR: 1958 default: 1959 /* "Internal target failure" */ 1960 ctl_set_sense_data(&msg_info.scsi.sense_data, 1961 lun, 1962 /*sense_format*/SSD_TYPE_NONE, 1963 /*current_error*/ 1, 1964 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 1965 /*asc*/ 0x44, 1966 /*ascq*/ 0x00, 1967 SSD_ELEM_NONE); 1968 1969 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1970 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1971 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1972 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1973 msg_info.hdr.serializing_sc = NULL; 1974 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1975#if 0 1976 printf("BAD JUJU:Major Bummer HW Error\n"); 1977#endif 1978 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1979 retval = 1; 1980 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1981 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1982 } 1983 break; 1984 } 1985 mtx_unlock(&lun->lun_lock); 1986 return (retval); 1987} 1988 1989static int 1990ctl_ioctl_submit_wait(union ctl_io *io) 1991{ 1992 struct ctl_fe_ioctl_params params; 1993 ctl_fe_ioctl_state last_state; 1994 int done, retval; 1995 1996 retval = 0; 1997 1998 bzero(¶ms, sizeof(params)); 1999 2000 mtx_init(¶ms.ioctl_mtx, "ctliocmtx", NULL, MTX_DEF); 2001 cv_init(¶ms.sem, "ctlioccv"); 2002 params.state = CTL_IOCTL_INPROG; 2003 last_state = params.state; 2004 2005 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = ¶ms; 2006 2007 CTL_DEBUG_PRINT(("ctl_ioctl_submit_wait\n")); 2008 2009 /* This shouldn't happen */ 2010 if ((retval = ctl_queue(io)) != CTL_RETVAL_COMPLETE) 2011 return (retval); 2012 2013 done = 0; 2014 2015 do { 2016 mtx_lock(¶ms.ioctl_mtx); 2017 /* 2018 * Check the state here, and don't sleep if the state has 2019 * already changed (i.e. wakeup has already occured, but we 2020 * weren't waiting yet). 2021 */ 2022 if (params.state == last_state) { 2023 /* XXX KDM cv_wait_sig instead? */ 2024 cv_wait(¶ms.sem, ¶ms.ioctl_mtx); 2025 } 2026 last_state = params.state; 2027 2028 switch (params.state) { 2029 case CTL_IOCTL_INPROG: 2030 /* Why did we wake up? */ 2031 /* XXX KDM error here? */ 2032 mtx_unlock(¶ms.ioctl_mtx); 2033 break; 2034 case CTL_IOCTL_DATAMOVE: 2035 CTL_DEBUG_PRINT(("got CTL_IOCTL_DATAMOVE\n")); 2036 2037 /* 2038 * change last_state back to INPROG to avoid 2039 * deadlock on subsequent data moves. 2040 */ 2041 params.state = last_state = CTL_IOCTL_INPROG; 2042 2043 mtx_unlock(¶ms.ioctl_mtx); 2044 ctl_ioctl_do_datamove(&io->scsiio); 2045 /* 2046 * Note that in some cases, most notably writes, 2047 * this will queue the I/O and call us back later. 2048 * In other cases, generally reads, this routine 2049 * will immediately call back and wake us up, 2050 * probably using our own context. 2051 */ 2052 io->scsiio.be_move_done(io); 2053 break; 2054 case CTL_IOCTL_DONE: 2055 mtx_unlock(¶ms.ioctl_mtx); 2056 CTL_DEBUG_PRINT(("got CTL_IOCTL_DONE\n")); 2057 done = 1; 2058 break; 2059 default: 2060 mtx_unlock(¶ms.ioctl_mtx); 2061 /* XXX KDM error here? */ 2062 break; 2063 } 2064 } while (done == 0); 2065 2066 mtx_destroy(¶ms.ioctl_mtx); 2067 cv_destroy(¶ms.sem); 2068 2069 return (CTL_RETVAL_COMPLETE); 2070} 2071 2072static void 2073ctl_ioctl_datamove(union ctl_io *io) 2074{ 2075 struct ctl_fe_ioctl_params *params; 2076 2077 params = (struct ctl_fe_ioctl_params *) 2078 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 2079 2080 mtx_lock(¶ms->ioctl_mtx); 2081 params->state = CTL_IOCTL_DATAMOVE; 2082 cv_broadcast(¶ms->sem); 2083 mtx_unlock(¶ms->ioctl_mtx); 2084} 2085 2086static void 2087ctl_ioctl_done(union ctl_io *io) 2088{ 2089 struct ctl_fe_ioctl_params *params; 2090 2091 params = (struct ctl_fe_ioctl_params *) 2092 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 2093 2094 mtx_lock(¶ms->ioctl_mtx); 2095 params->state = CTL_IOCTL_DONE; 2096 cv_broadcast(¶ms->sem); 2097 mtx_unlock(¶ms->ioctl_mtx); 2098} 2099 2100static void 2101ctl_ioctl_hard_startstop_callback(void *arg, struct cfi_metatask *metatask) 2102{ 2103 struct ctl_fe_ioctl_startstop_info *sd_info; 2104 2105 sd_info = (struct ctl_fe_ioctl_startstop_info *)arg; 2106 2107 sd_info->hs_info.status = metatask->status; 2108 sd_info->hs_info.total_luns = metatask->taskinfo.startstop.total_luns; 2109 sd_info->hs_info.luns_complete = 2110 metatask->taskinfo.startstop.luns_complete; 2111 sd_info->hs_info.luns_failed = metatask->taskinfo.startstop.luns_failed; 2112 2113 cv_broadcast(&sd_info->sem); 2114} 2115 2116static void 2117ctl_ioctl_bbrread_callback(void *arg, struct cfi_metatask *metatask) 2118{ 2119 struct ctl_fe_ioctl_bbrread_info *fe_bbr_info; 2120 2121 fe_bbr_info = (struct ctl_fe_ioctl_bbrread_info *)arg; 2122 2123 mtx_lock(fe_bbr_info->lock); 2124 fe_bbr_info->bbr_info->status = metatask->status; 2125 fe_bbr_info->bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2126 fe_bbr_info->wakeup_done = 1; 2127 mtx_unlock(fe_bbr_info->lock); 2128 2129 cv_broadcast(&fe_bbr_info->sem); 2130} 2131 2132/* 2133 * Returns 0 for success, errno for failure. 2134 */ 2135static int 2136ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2137 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2138{ 2139 union ctl_io *io; 2140 int retval; 2141 2142 retval = 0; 2143 2144 mtx_lock(&lun->lun_lock); 2145 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2146 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2147 ooa_links)) { 2148 struct ctl_ooa_entry *entry; 2149 2150 /* 2151 * If we've got more than we can fit, just count the 2152 * remaining entries. 2153 */ 2154 if (*cur_fill_num >= ooa_hdr->alloc_num) 2155 continue; 2156 2157 entry = &kern_entries[*cur_fill_num]; 2158 2159 entry->tag_num = io->scsiio.tag_num; 2160 entry->lun_num = lun->lun; 2161#ifdef CTL_TIME_IO 2162 entry->start_bt = io->io_hdr.start_bt; 2163#endif 2164 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2165 entry->cdb_len = io->scsiio.cdb_len; 2166 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2167 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2168 2169 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2170 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2171 2172 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2173 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2174 2175 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2176 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2177 2178 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2179 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2180 } 2181 mtx_unlock(&lun->lun_lock); 2182 2183 return (retval); 2184} 2185 2186static void * 2187ctl_copyin_alloc(void *user_addr, int len, char *error_str, 2188 size_t error_str_len) 2189{ 2190 void *kptr; 2191 2192 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2193 2194 if (copyin(user_addr, kptr, len) != 0) { 2195 snprintf(error_str, error_str_len, "Error copying %d bytes " 2196 "from user address %p to kernel address %p", len, 2197 user_addr, kptr); 2198 free(kptr, M_CTL); 2199 return (NULL); 2200 } 2201 2202 return (kptr); 2203} 2204 2205static void 2206ctl_free_args(int num_args, struct ctl_be_arg *args) 2207{ 2208 int i; 2209 2210 if (args == NULL) 2211 return; 2212 2213 for (i = 0; i < num_args; i++) { 2214 free(args[i].kname, M_CTL); 2215 free(args[i].kvalue, M_CTL); 2216 } 2217 2218 free(args, M_CTL); 2219} 2220 2221static struct ctl_be_arg * 2222ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2223 char *error_str, size_t error_str_len) 2224{ 2225 struct ctl_be_arg *args; 2226 int i; 2227 2228 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2229 error_str, error_str_len); 2230 2231 if (args == NULL) 2232 goto bailout; 2233 2234 for (i = 0; i < num_args; i++) { 2235 args[i].kname = NULL; 2236 args[i].kvalue = NULL; 2237 } 2238 2239 for (i = 0; i < num_args; i++) { 2240 uint8_t *tmpptr; 2241 2242 args[i].kname = ctl_copyin_alloc(args[i].name, 2243 args[i].namelen, error_str, error_str_len); 2244 if (args[i].kname == NULL) 2245 goto bailout; 2246 2247 if (args[i].kname[args[i].namelen - 1] != '\0') { 2248 snprintf(error_str, error_str_len, "Argument %d " 2249 "name is not NUL-terminated", i); 2250 goto bailout; 2251 } 2252 2253 if (args[i].flags & CTL_BEARG_RD) { 2254 tmpptr = ctl_copyin_alloc(args[i].value, 2255 args[i].vallen, error_str, error_str_len); 2256 if (tmpptr == NULL) 2257 goto bailout; 2258 if ((args[i].flags & CTL_BEARG_ASCII) 2259 && (tmpptr[args[i].vallen - 1] != '\0')) { 2260 snprintf(error_str, error_str_len, "Argument " 2261 "%d value is not NUL-terminated", i); 2262 goto bailout; 2263 } 2264 args[i].kvalue = tmpptr; 2265 } else { 2266 args[i].kvalue = malloc(args[i].vallen, 2267 M_CTL, M_WAITOK | M_ZERO); 2268 } 2269 } 2270 2271 return (args); 2272bailout: 2273 2274 ctl_free_args(num_args, args); 2275 2276 return (NULL); 2277} 2278 2279static void 2280ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2281{ 2282 int i; 2283 2284 for (i = 0; i < num_args; i++) { 2285 if (args[i].flags & CTL_BEARG_WR) 2286 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2287 } 2288} 2289 2290/* 2291 * Escape characters that are illegal or not recommended in XML. 2292 */ 2293int 2294ctl_sbuf_printf_esc(struct sbuf *sb, char *str, int size) 2295{ 2296 char *end = str + size; 2297 int retval; 2298 2299 retval = 0; 2300 2301 for (; *str && str < end; str++) { 2302 switch (*str) { 2303 case '&': 2304 retval = sbuf_printf(sb, "&"); 2305 break; 2306 case '>': 2307 retval = sbuf_printf(sb, ">"); 2308 break; 2309 case '<': 2310 retval = sbuf_printf(sb, "<"); 2311 break; 2312 default: 2313 retval = sbuf_putc(sb, *str); 2314 break; 2315 } 2316 2317 if (retval != 0) 2318 break; 2319 2320 } 2321 2322 return (retval); 2323} 2324 2325static void 2326ctl_id_sbuf(struct ctl_devid *id, struct sbuf *sb) 2327{ 2328 struct scsi_vpd_id_descriptor *desc; 2329 int i; 2330 2331 if (id == NULL || id->len < 4) 2332 return; 2333 desc = (struct scsi_vpd_id_descriptor *)id->data; 2334 switch (desc->id_type & SVPD_ID_TYPE_MASK) { 2335 case SVPD_ID_TYPE_T10: 2336 sbuf_printf(sb, "t10."); 2337 break; 2338 case SVPD_ID_TYPE_EUI64: 2339 sbuf_printf(sb, "eui."); 2340 break; 2341 case SVPD_ID_TYPE_NAA: 2342 sbuf_printf(sb, "naa."); 2343 break; 2344 case SVPD_ID_TYPE_SCSI_NAME: 2345 break; 2346 } 2347 switch (desc->proto_codeset & SVPD_ID_CODESET_MASK) { 2348 case SVPD_ID_CODESET_BINARY: 2349 for (i = 0; i < desc->length; i++) 2350 sbuf_printf(sb, "%02x", desc->identifier[i]); 2351 break; 2352 case SVPD_ID_CODESET_ASCII: 2353 sbuf_printf(sb, "%.*s", (int)desc->length, 2354 (char *)desc->identifier); 2355 break; 2356 case SVPD_ID_CODESET_UTF8: 2357 sbuf_printf(sb, "%s", (char *)desc->identifier); 2358 break; 2359 } 2360} 2361 2362static int 2363ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2364 struct thread *td) 2365{ 2366 struct ctl_softc *softc; 2367 int retval; 2368 2369 softc = control_softc; 2370 2371 retval = 0; 2372 2373 switch (cmd) { 2374 case CTL_IO: { 2375 union ctl_io *io; 2376 void *pool_tmp; 2377 2378 /* 2379 * If we haven't been "enabled", don't allow any SCSI I/O 2380 * to this FETD. 2381 */ 2382 if ((softc->ioctl_info.flags & CTL_IOCTL_FLAG_ENABLED) == 0) { 2383 retval = EPERM; 2384 break; 2385 } 2386 2387 io = ctl_alloc_io(softc->ioctl_info.port.ctl_pool_ref); 2388 2389 /* 2390 * Need to save the pool reference so it doesn't get 2391 * spammed by the user's ctl_io. 2392 */ 2393 pool_tmp = io->io_hdr.pool; 2394 memcpy(io, (void *)addr, sizeof(*io)); 2395 io->io_hdr.pool = pool_tmp; 2396 2397 /* 2398 * No status yet, so make sure the status is set properly. 2399 */ 2400 io->io_hdr.status = CTL_STATUS_NONE; 2401 2402 /* 2403 * The user sets the initiator ID, target and LUN IDs. 2404 */ 2405 io->io_hdr.nexus.targ_port = softc->ioctl_info.port.targ_port; 2406 io->io_hdr.flags |= CTL_FLAG_USER_REQ; 2407 if ((io->io_hdr.io_type == CTL_IO_SCSI) 2408 && (io->scsiio.tag_type != CTL_TAG_UNTAGGED)) 2409 io->scsiio.tag_num = softc->ioctl_info.cur_tag_num++; 2410 2411 retval = ctl_ioctl_submit_wait(io); 2412 2413 if (retval != 0) { 2414 ctl_free_io(io); 2415 break; 2416 } 2417 2418 memcpy((void *)addr, io, sizeof(*io)); 2419 2420 /* return this to our pool */ 2421 ctl_free_io(io); 2422 2423 break; 2424 } 2425 case CTL_ENABLE_PORT: 2426 case CTL_DISABLE_PORT: 2427 case CTL_SET_PORT_WWNS: { 2428 struct ctl_port *port; 2429 struct ctl_port_entry *entry; 2430 2431 entry = (struct ctl_port_entry *)addr; 2432 2433 mtx_lock(&softc->ctl_lock); 2434 STAILQ_FOREACH(port, &softc->port_list, links) { 2435 int action, done; 2436 2437 action = 0; 2438 done = 0; 2439 2440 if ((entry->port_type == CTL_PORT_NONE) 2441 && (entry->targ_port == port->targ_port)) { 2442 /* 2443 * If the user only wants to enable or 2444 * disable or set WWNs on a specific port, 2445 * do the operation and we're done. 2446 */ 2447 action = 1; 2448 done = 1; 2449 } else if (entry->port_type & port->port_type) { 2450 /* 2451 * Compare the user's type mask with the 2452 * particular frontend type to see if we 2453 * have a match. 2454 */ 2455 action = 1; 2456 done = 0; 2457 2458 /* 2459 * Make sure the user isn't trying to set 2460 * WWNs on multiple ports at the same time. 2461 */ 2462 if (cmd == CTL_SET_PORT_WWNS) { 2463 printf("%s: Can't set WWNs on " 2464 "multiple ports\n", __func__); 2465 retval = EINVAL; 2466 break; 2467 } 2468 } 2469 if (action != 0) { 2470 /* 2471 * XXX KDM we have to drop the lock here, 2472 * because the online/offline operations 2473 * can potentially block. We need to 2474 * reference count the frontends so they 2475 * can't go away, 2476 */ 2477 mtx_unlock(&softc->ctl_lock); 2478 2479 if (cmd == CTL_ENABLE_PORT) { 2480 struct ctl_lun *lun; 2481 2482 STAILQ_FOREACH(lun, &softc->lun_list, 2483 links) { 2484 port->lun_enable(port->targ_lun_arg, 2485 lun->target, 2486 lun->lun); 2487 } 2488 2489 ctl_port_online(port); 2490 } else if (cmd == CTL_DISABLE_PORT) { 2491 struct ctl_lun *lun; 2492 2493 ctl_port_offline(port); 2494 2495 STAILQ_FOREACH(lun, &softc->lun_list, 2496 links) { 2497 port->lun_disable( 2498 port->targ_lun_arg, 2499 lun->target, 2500 lun->lun); 2501 } 2502 } 2503 2504 mtx_lock(&softc->ctl_lock); 2505 2506 if (cmd == CTL_SET_PORT_WWNS) 2507 ctl_port_set_wwns(port, 2508 (entry->flags & CTL_PORT_WWNN_VALID) ? 2509 1 : 0, entry->wwnn, 2510 (entry->flags & CTL_PORT_WWPN_VALID) ? 2511 1 : 0, entry->wwpn); 2512 } 2513 if (done != 0) 2514 break; 2515 } 2516 mtx_unlock(&softc->ctl_lock); 2517 break; 2518 } 2519 case CTL_GET_PORT_LIST: { 2520 struct ctl_port *port; 2521 struct ctl_port_list *list; 2522 int i; 2523 2524 list = (struct ctl_port_list *)addr; 2525 2526 if (list->alloc_len != (list->alloc_num * 2527 sizeof(struct ctl_port_entry))) { 2528 printf("%s: CTL_GET_PORT_LIST: alloc_len %u != " 2529 "alloc_num %u * sizeof(struct ctl_port_entry) " 2530 "%zu\n", __func__, list->alloc_len, 2531 list->alloc_num, sizeof(struct ctl_port_entry)); 2532 retval = EINVAL; 2533 break; 2534 } 2535 list->fill_len = 0; 2536 list->fill_num = 0; 2537 list->dropped_num = 0; 2538 i = 0; 2539 mtx_lock(&softc->ctl_lock); 2540 STAILQ_FOREACH(port, &softc->port_list, links) { 2541 struct ctl_port_entry entry, *list_entry; 2542 2543 if (list->fill_num >= list->alloc_num) { 2544 list->dropped_num++; 2545 continue; 2546 } 2547 2548 entry.port_type = port->port_type; 2549 strlcpy(entry.port_name, port->port_name, 2550 sizeof(entry.port_name)); 2551 entry.targ_port = port->targ_port; 2552 entry.physical_port = port->physical_port; 2553 entry.virtual_port = port->virtual_port; 2554 entry.wwnn = port->wwnn; 2555 entry.wwpn = port->wwpn; 2556 if (port->status & CTL_PORT_STATUS_ONLINE) 2557 entry.online = 1; 2558 else 2559 entry.online = 0; 2560 2561 list_entry = &list->entries[i]; 2562 2563 retval = copyout(&entry, list_entry, sizeof(entry)); 2564 if (retval != 0) { 2565 printf("%s: CTL_GET_PORT_LIST: copyout " 2566 "returned %d\n", __func__, retval); 2567 break; 2568 } 2569 i++; 2570 list->fill_num++; 2571 list->fill_len += sizeof(entry); 2572 } 2573 mtx_unlock(&softc->ctl_lock); 2574 2575 /* 2576 * If this is non-zero, we had a copyout fault, so there's 2577 * probably no point in attempting to set the status inside 2578 * the structure. 2579 */ 2580 if (retval != 0) 2581 break; 2582 2583 if (list->dropped_num > 0) 2584 list->status = CTL_PORT_LIST_NEED_MORE_SPACE; 2585 else 2586 list->status = CTL_PORT_LIST_OK; 2587 break; 2588 } 2589 case CTL_DUMP_OOA: { 2590 struct ctl_lun *lun; 2591 union ctl_io *io; 2592 char printbuf[128]; 2593 struct sbuf sb; 2594 2595 mtx_lock(&softc->ctl_lock); 2596 printf("Dumping OOA queues:\n"); 2597 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2598 mtx_lock(&lun->lun_lock); 2599 for (io = (union ctl_io *)TAILQ_FIRST( 2600 &lun->ooa_queue); io != NULL; 2601 io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2602 ooa_links)) { 2603 sbuf_new(&sb, printbuf, sizeof(printbuf), 2604 SBUF_FIXEDLEN); 2605 sbuf_printf(&sb, "LUN %jd tag 0x%04x%s%s%s%s: ", 2606 (intmax_t)lun->lun, 2607 io->scsiio.tag_num, 2608 (io->io_hdr.flags & 2609 CTL_FLAG_BLOCKED) ? "" : " BLOCKED", 2610 (io->io_hdr.flags & 2611 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 2612 (io->io_hdr.flags & 2613 CTL_FLAG_ABORT) ? " ABORT" : "", 2614 (io->io_hdr.flags & 2615 CTL_FLAG_IS_WAS_ON_RTR) ? " RTR" : ""); 2616 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 2617 sbuf_finish(&sb); 2618 printf("%s\n", sbuf_data(&sb)); 2619 } 2620 mtx_unlock(&lun->lun_lock); 2621 } 2622 printf("OOA queues dump done\n"); 2623 mtx_unlock(&softc->ctl_lock); 2624 break; 2625 } 2626 case CTL_GET_OOA: { 2627 struct ctl_lun *lun; 2628 struct ctl_ooa *ooa_hdr; 2629 struct ctl_ooa_entry *entries; 2630 uint32_t cur_fill_num; 2631 2632 ooa_hdr = (struct ctl_ooa *)addr; 2633 2634 if ((ooa_hdr->alloc_len == 0) 2635 || (ooa_hdr->alloc_num == 0)) { 2636 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2637 "must be non-zero\n", __func__, 2638 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2639 retval = EINVAL; 2640 break; 2641 } 2642 2643 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2644 sizeof(struct ctl_ooa_entry))) { 2645 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2646 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2647 __func__, ooa_hdr->alloc_len, 2648 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2649 retval = EINVAL; 2650 break; 2651 } 2652 2653 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2654 if (entries == NULL) { 2655 printf("%s: could not allocate %d bytes for OOA " 2656 "dump\n", __func__, ooa_hdr->alloc_len); 2657 retval = ENOMEM; 2658 break; 2659 } 2660 2661 mtx_lock(&softc->ctl_lock); 2662 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2663 && ((ooa_hdr->lun_num >= CTL_MAX_LUNS) 2664 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2665 mtx_unlock(&softc->ctl_lock); 2666 free(entries, M_CTL); 2667 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2668 __func__, (uintmax_t)ooa_hdr->lun_num); 2669 retval = EINVAL; 2670 break; 2671 } 2672 2673 cur_fill_num = 0; 2674 2675 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2676 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2677 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2678 ooa_hdr, entries); 2679 if (retval != 0) 2680 break; 2681 } 2682 if (retval != 0) { 2683 mtx_unlock(&softc->ctl_lock); 2684 free(entries, M_CTL); 2685 break; 2686 } 2687 } else { 2688 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2689 2690 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num,ooa_hdr, 2691 entries); 2692 } 2693 mtx_unlock(&softc->ctl_lock); 2694 2695 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2696 ooa_hdr->fill_len = ooa_hdr->fill_num * 2697 sizeof(struct ctl_ooa_entry); 2698 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2699 if (retval != 0) { 2700 printf("%s: error copying out %d bytes for OOA dump\n", 2701 __func__, ooa_hdr->fill_len); 2702 } 2703 2704 getbintime(&ooa_hdr->cur_bt); 2705 2706 if (cur_fill_num > ooa_hdr->alloc_num) { 2707 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2708 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2709 } else { 2710 ooa_hdr->dropped_num = 0; 2711 ooa_hdr->status = CTL_OOA_OK; 2712 } 2713 2714 free(entries, M_CTL); 2715 break; 2716 } 2717 case CTL_CHECK_OOA: { 2718 union ctl_io *io; 2719 struct ctl_lun *lun; 2720 struct ctl_ooa_info *ooa_info; 2721 2722 2723 ooa_info = (struct ctl_ooa_info *)addr; 2724 2725 if (ooa_info->lun_id >= CTL_MAX_LUNS) { 2726 ooa_info->status = CTL_OOA_INVALID_LUN; 2727 break; 2728 } 2729 mtx_lock(&softc->ctl_lock); 2730 lun = softc->ctl_luns[ooa_info->lun_id]; 2731 if (lun == NULL) { 2732 mtx_unlock(&softc->ctl_lock); 2733 ooa_info->status = CTL_OOA_INVALID_LUN; 2734 break; 2735 } 2736 mtx_lock(&lun->lun_lock); 2737 mtx_unlock(&softc->ctl_lock); 2738 ooa_info->num_entries = 0; 2739 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 2740 io != NULL; io = (union ctl_io *)TAILQ_NEXT( 2741 &io->io_hdr, ooa_links)) { 2742 ooa_info->num_entries++; 2743 } 2744 mtx_unlock(&lun->lun_lock); 2745 2746 ooa_info->status = CTL_OOA_SUCCESS; 2747 2748 break; 2749 } 2750 case CTL_HARD_START: 2751 case CTL_HARD_STOP: { 2752 struct ctl_fe_ioctl_startstop_info ss_info; 2753 struct cfi_metatask *metatask; 2754 struct mtx hs_mtx; 2755 2756 mtx_init(&hs_mtx, "HS Mutex", NULL, MTX_DEF); 2757 2758 cv_init(&ss_info.sem, "hard start/stop cv" ); 2759 2760 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2761 if (metatask == NULL) { 2762 retval = ENOMEM; 2763 mtx_destroy(&hs_mtx); 2764 break; 2765 } 2766 2767 if (cmd == CTL_HARD_START) 2768 metatask->tasktype = CFI_TASK_STARTUP; 2769 else 2770 metatask->tasktype = CFI_TASK_SHUTDOWN; 2771 2772 metatask->callback = ctl_ioctl_hard_startstop_callback; 2773 metatask->callback_arg = &ss_info; 2774 2775 cfi_action(metatask); 2776 2777 /* Wait for the callback */ 2778 mtx_lock(&hs_mtx); 2779 cv_wait_sig(&ss_info.sem, &hs_mtx); 2780 mtx_unlock(&hs_mtx); 2781 2782 /* 2783 * All information has been copied from the metatask by the 2784 * time cv_broadcast() is called, so we free the metatask here. 2785 */ 2786 cfi_free_metatask(metatask); 2787 2788 memcpy((void *)addr, &ss_info.hs_info, sizeof(ss_info.hs_info)); 2789 2790 mtx_destroy(&hs_mtx); 2791 break; 2792 } 2793 case CTL_BBRREAD: { 2794 struct ctl_bbrread_info *bbr_info; 2795 struct ctl_fe_ioctl_bbrread_info fe_bbr_info; 2796 struct mtx bbr_mtx; 2797 struct cfi_metatask *metatask; 2798 2799 bbr_info = (struct ctl_bbrread_info *)addr; 2800 2801 bzero(&fe_bbr_info, sizeof(fe_bbr_info)); 2802 2803 bzero(&bbr_mtx, sizeof(bbr_mtx)); 2804 mtx_init(&bbr_mtx, "BBR Mutex", NULL, MTX_DEF); 2805 2806 fe_bbr_info.bbr_info = bbr_info; 2807 fe_bbr_info.lock = &bbr_mtx; 2808 2809 cv_init(&fe_bbr_info.sem, "BBR read cv"); 2810 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2811 2812 if (metatask == NULL) { 2813 mtx_destroy(&bbr_mtx); 2814 cv_destroy(&fe_bbr_info.sem); 2815 retval = ENOMEM; 2816 break; 2817 } 2818 metatask->tasktype = CFI_TASK_BBRREAD; 2819 metatask->callback = ctl_ioctl_bbrread_callback; 2820 metatask->callback_arg = &fe_bbr_info; 2821 metatask->taskinfo.bbrread.lun_num = bbr_info->lun_num; 2822 metatask->taskinfo.bbrread.lba = bbr_info->lba; 2823 metatask->taskinfo.bbrread.len = bbr_info->len; 2824 2825 cfi_action(metatask); 2826 2827 mtx_lock(&bbr_mtx); 2828 while (fe_bbr_info.wakeup_done == 0) 2829 cv_wait_sig(&fe_bbr_info.sem, &bbr_mtx); 2830 mtx_unlock(&bbr_mtx); 2831 2832 bbr_info->status = metatask->status; 2833 bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2834 bbr_info->scsi_status = metatask->taskinfo.bbrread.scsi_status; 2835 memcpy(&bbr_info->sense_data, 2836 &metatask->taskinfo.bbrread.sense_data, 2837 MIN(sizeof(bbr_info->sense_data), 2838 sizeof(metatask->taskinfo.bbrread.sense_data))); 2839 2840 cfi_free_metatask(metatask); 2841 2842 mtx_destroy(&bbr_mtx); 2843 cv_destroy(&fe_bbr_info.sem); 2844 2845 break; 2846 } 2847 case CTL_DELAY_IO: { 2848 struct ctl_io_delay_info *delay_info; 2849#ifdef CTL_IO_DELAY 2850 struct ctl_lun *lun; 2851#endif /* CTL_IO_DELAY */ 2852 2853 delay_info = (struct ctl_io_delay_info *)addr; 2854 2855#ifdef CTL_IO_DELAY 2856 mtx_lock(&softc->ctl_lock); 2857 2858 if ((delay_info->lun_id >= CTL_MAX_LUNS) 2859 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2860 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2861 } else { 2862 lun = softc->ctl_luns[delay_info->lun_id]; 2863 mtx_lock(&lun->lun_lock); 2864 2865 delay_info->status = CTL_DELAY_STATUS_OK; 2866 2867 switch (delay_info->delay_type) { 2868 case CTL_DELAY_TYPE_CONT: 2869 break; 2870 case CTL_DELAY_TYPE_ONESHOT: 2871 break; 2872 default: 2873 delay_info->status = 2874 CTL_DELAY_STATUS_INVALID_TYPE; 2875 break; 2876 } 2877 2878 switch (delay_info->delay_loc) { 2879 case CTL_DELAY_LOC_DATAMOVE: 2880 lun->delay_info.datamove_type = 2881 delay_info->delay_type; 2882 lun->delay_info.datamove_delay = 2883 delay_info->delay_secs; 2884 break; 2885 case CTL_DELAY_LOC_DONE: 2886 lun->delay_info.done_type = 2887 delay_info->delay_type; 2888 lun->delay_info.done_delay = 2889 delay_info->delay_secs; 2890 break; 2891 default: 2892 delay_info->status = 2893 CTL_DELAY_STATUS_INVALID_LOC; 2894 break; 2895 } 2896 mtx_unlock(&lun->lun_lock); 2897 } 2898 2899 mtx_unlock(&softc->ctl_lock); 2900#else 2901 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2902#endif /* CTL_IO_DELAY */ 2903 break; 2904 } 2905 case CTL_REALSYNC_SET: { 2906 int *syncstate; 2907 2908 syncstate = (int *)addr; 2909 2910 mtx_lock(&softc->ctl_lock); 2911 switch (*syncstate) { 2912 case 0: 2913 softc->flags &= ~CTL_FLAG_REAL_SYNC; 2914 break; 2915 case 1: 2916 softc->flags |= CTL_FLAG_REAL_SYNC; 2917 break; 2918 default: 2919 retval = EINVAL; 2920 break; 2921 } 2922 mtx_unlock(&softc->ctl_lock); 2923 break; 2924 } 2925 case CTL_REALSYNC_GET: { 2926 int *syncstate; 2927 2928 syncstate = (int*)addr; 2929 2930 mtx_lock(&softc->ctl_lock); 2931 if (softc->flags & CTL_FLAG_REAL_SYNC) 2932 *syncstate = 1; 2933 else 2934 *syncstate = 0; 2935 mtx_unlock(&softc->ctl_lock); 2936 2937 break; 2938 } 2939 case CTL_SETSYNC: 2940 case CTL_GETSYNC: { 2941 struct ctl_sync_info *sync_info; 2942 struct ctl_lun *lun; 2943 2944 sync_info = (struct ctl_sync_info *)addr; 2945 2946 mtx_lock(&softc->ctl_lock); 2947 lun = softc->ctl_luns[sync_info->lun_id]; 2948 if (lun == NULL) { 2949 mtx_unlock(&softc->ctl_lock); 2950 sync_info->status = CTL_GS_SYNC_NO_LUN; 2951 } 2952 /* 2953 * Get or set the sync interval. We're not bounds checking 2954 * in the set case, hopefully the user won't do something 2955 * silly. 2956 */ 2957 mtx_lock(&lun->lun_lock); 2958 mtx_unlock(&softc->ctl_lock); 2959 if (cmd == CTL_GETSYNC) 2960 sync_info->sync_interval = lun->sync_interval; 2961 else 2962 lun->sync_interval = sync_info->sync_interval; 2963 mtx_unlock(&lun->lun_lock); 2964 2965 sync_info->status = CTL_GS_SYNC_OK; 2966 2967 break; 2968 } 2969 case CTL_GETSTATS: { 2970 struct ctl_stats *stats; 2971 struct ctl_lun *lun; 2972 int i; 2973 2974 stats = (struct ctl_stats *)addr; 2975 2976 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2977 stats->alloc_len) { 2978 stats->status = CTL_SS_NEED_MORE_SPACE; 2979 stats->num_luns = softc->num_luns; 2980 break; 2981 } 2982 /* 2983 * XXX KDM no locking here. If the LUN list changes, 2984 * things can blow up. 2985 */ 2986 for (i = 0, lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; 2987 i++, lun = STAILQ_NEXT(lun, links)) { 2988 retval = copyout(&lun->stats, &stats->lun_stats[i], 2989 sizeof(lun->stats)); 2990 if (retval != 0) 2991 break; 2992 } 2993 stats->num_luns = softc->num_luns; 2994 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2995 softc->num_luns; 2996 stats->status = CTL_SS_OK; 2997#ifdef CTL_TIME_IO 2998 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2999#else 3000 stats->flags = CTL_STATS_FLAG_NONE; 3001#endif 3002 getnanouptime(&stats->timestamp); 3003 break; 3004 } 3005 case CTL_ERROR_INJECT: { 3006 struct ctl_error_desc *err_desc, *new_err_desc; 3007 struct ctl_lun *lun; 3008 3009 err_desc = (struct ctl_error_desc *)addr; 3010 3011 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 3012 M_WAITOK | M_ZERO); 3013 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 3014 3015 mtx_lock(&softc->ctl_lock); 3016 lun = softc->ctl_luns[err_desc->lun_id]; 3017 if (lun == NULL) { 3018 mtx_unlock(&softc->ctl_lock); 3019 free(new_err_desc, M_CTL); 3020 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 3021 __func__, (uintmax_t)err_desc->lun_id); 3022 retval = EINVAL; 3023 break; 3024 } 3025 mtx_lock(&lun->lun_lock); 3026 mtx_unlock(&softc->ctl_lock); 3027 3028 /* 3029 * We could do some checking here to verify the validity 3030 * of the request, but given the complexity of error 3031 * injection requests, the checking logic would be fairly 3032 * complex. 3033 * 3034 * For now, if the request is invalid, it just won't get 3035 * executed and might get deleted. 3036 */ 3037 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 3038 3039 /* 3040 * XXX KDM check to make sure the serial number is unique, 3041 * in case we somehow manage to wrap. That shouldn't 3042 * happen for a very long time, but it's the right thing to 3043 * do. 3044 */ 3045 new_err_desc->serial = lun->error_serial; 3046 err_desc->serial = lun->error_serial; 3047 lun->error_serial++; 3048 3049 mtx_unlock(&lun->lun_lock); 3050 break; 3051 } 3052 case CTL_ERROR_INJECT_DELETE: { 3053 struct ctl_error_desc *delete_desc, *desc, *desc2; 3054 struct ctl_lun *lun; 3055 int delete_done; 3056 3057 delete_desc = (struct ctl_error_desc *)addr; 3058 delete_done = 0; 3059 3060 mtx_lock(&softc->ctl_lock); 3061 lun = softc->ctl_luns[delete_desc->lun_id]; 3062 if (lun == NULL) { 3063 mtx_unlock(&softc->ctl_lock); 3064 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 3065 __func__, (uintmax_t)delete_desc->lun_id); 3066 retval = EINVAL; 3067 break; 3068 } 3069 mtx_lock(&lun->lun_lock); 3070 mtx_unlock(&softc->ctl_lock); 3071 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 3072 if (desc->serial != delete_desc->serial) 3073 continue; 3074 3075 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 3076 links); 3077 free(desc, M_CTL); 3078 delete_done = 1; 3079 } 3080 mtx_unlock(&lun->lun_lock); 3081 if (delete_done == 0) { 3082 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 3083 "error serial %ju on LUN %u\n", __func__, 3084 delete_desc->serial, delete_desc->lun_id); 3085 retval = EINVAL; 3086 break; 3087 } 3088 break; 3089 } 3090 case CTL_DUMP_STRUCTS: { 3091 int i, j, k; 3092 struct ctl_port *port; 3093 struct ctl_frontend *fe; 3094 3095 mtx_lock(&softc->ctl_lock); 3096 printf("CTL Persistent Reservation information start:\n"); 3097 for (i = 0; i < CTL_MAX_LUNS; i++) { 3098 struct ctl_lun *lun; 3099 3100 lun = softc->ctl_luns[i]; 3101 3102 if ((lun == NULL) 3103 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 3104 continue; 3105 3106 for (j = 0; j < (CTL_MAX_PORTS * 2); j++) { 3107 if (lun->pr_keys[j] == NULL) 3108 continue; 3109 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 3110 if (lun->pr_keys[j][k] == 0) 3111 continue; 3112 printf(" LUN %d port %d iid %d key " 3113 "%#jx\n", i, j, k, 3114 (uintmax_t)lun->pr_keys[j][k]); 3115 } 3116 } 3117 } 3118 printf("CTL Persistent Reservation information end\n"); 3119 printf("CTL Ports:\n"); 3120 STAILQ_FOREACH(port, &softc->port_list, links) { 3121 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 3122 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 3123 port->frontend->name, port->port_type, 3124 port->physical_port, port->virtual_port, 3125 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 3126 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3127 if (port->wwpn_iid[j].in_use == 0 && 3128 port->wwpn_iid[j].wwpn == 0 && 3129 port->wwpn_iid[j].name == NULL) 3130 continue; 3131 3132 printf(" iid %u use %d WWPN %#jx '%s'\n", 3133 j, port->wwpn_iid[j].in_use, 3134 (uintmax_t)port->wwpn_iid[j].wwpn, 3135 port->wwpn_iid[j].name); 3136 } 3137 } 3138 printf("CTL Port information end\n"); 3139 mtx_unlock(&softc->ctl_lock); 3140 /* 3141 * XXX KDM calling this without a lock. We'd likely want 3142 * to drop the lock before calling the frontend's dump 3143 * routine anyway. 3144 */ 3145 printf("CTL Frontends:\n"); 3146 STAILQ_FOREACH(fe, &softc->fe_list, links) { 3147 printf(" Frontend '%s'\n", fe->name); 3148 if (fe->fe_dump != NULL) 3149 fe->fe_dump(); 3150 } 3151 printf("CTL Frontend information end\n"); 3152 break; 3153 } 3154 case CTL_LUN_REQ: { 3155 struct ctl_lun_req *lun_req; 3156 struct ctl_backend_driver *backend; 3157 3158 lun_req = (struct ctl_lun_req *)addr; 3159 3160 backend = ctl_backend_find(lun_req->backend); 3161 if (backend == NULL) { 3162 lun_req->status = CTL_LUN_ERROR; 3163 snprintf(lun_req->error_str, 3164 sizeof(lun_req->error_str), 3165 "Backend \"%s\" not found.", 3166 lun_req->backend); 3167 break; 3168 } 3169 if (lun_req->num_be_args > 0) { 3170 lun_req->kern_be_args = ctl_copyin_args( 3171 lun_req->num_be_args, 3172 lun_req->be_args, 3173 lun_req->error_str, 3174 sizeof(lun_req->error_str)); 3175 if (lun_req->kern_be_args == NULL) { 3176 lun_req->status = CTL_LUN_ERROR; 3177 break; 3178 } 3179 } 3180 3181 retval = backend->ioctl(dev, cmd, addr, flag, td); 3182 3183 if (lun_req->num_be_args > 0) { 3184 ctl_copyout_args(lun_req->num_be_args, 3185 lun_req->kern_be_args); 3186 ctl_free_args(lun_req->num_be_args, 3187 lun_req->kern_be_args); 3188 } 3189 break; 3190 } 3191 case CTL_LUN_LIST: { 3192 struct sbuf *sb; 3193 struct ctl_lun *lun; 3194 struct ctl_lun_list *list; 3195 struct ctl_option *opt; 3196 3197 list = (struct ctl_lun_list *)addr; 3198 3199 /* 3200 * Allocate a fixed length sbuf here, based on the length 3201 * of the user's buffer. We could allocate an auto-extending 3202 * buffer, and then tell the user how much larger our 3203 * amount of data is than his buffer, but that presents 3204 * some problems: 3205 * 3206 * 1. The sbuf(9) routines use a blocking malloc, and so 3207 * we can't hold a lock while calling them with an 3208 * auto-extending buffer. 3209 * 3210 * 2. There is not currently a LUN reference counting 3211 * mechanism, outside of outstanding transactions on 3212 * the LUN's OOA queue. So a LUN could go away on us 3213 * while we're getting the LUN number, backend-specific 3214 * information, etc. Thus, given the way things 3215 * currently work, we need to hold the CTL lock while 3216 * grabbing LUN information. 3217 * 3218 * So, from the user's standpoint, the best thing to do is 3219 * allocate what he thinks is a reasonable buffer length, 3220 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3221 * double the buffer length and try again. (And repeat 3222 * that until he succeeds.) 3223 */ 3224 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3225 if (sb == NULL) { 3226 list->status = CTL_LUN_LIST_ERROR; 3227 snprintf(list->error_str, sizeof(list->error_str), 3228 "Unable to allocate %d bytes for LUN list", 3229 list->alloc_len); 3230 break; 3231 } 3232 3233 sbuf_printf(sb, "<ctllunlist>\n"); 3234 3235 mtx_lock(&softc->ctl_lock); 3236 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3237 mtx_lock(&lun->lun_lock); 3238 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3239 (uintmax_t)lun->lun); 3240 3241 /* 3242 * Bail out as soon as we see that we've overfilled 3243 * the buffer. 3244 */ 3245 if (retval != 0) 3246 break; 3247 3248 retval = sbuf_printf(sb, "\t<backend_type>%s" 3249 "</backend_type>\n", 3250 (lun->backend == NULL) ? "none" : 3251 lun->backend->name); 3252 3253 if (retval != 0) 3254 break; 3255 3256 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3257 lun->be_lun->lun_type); 3258 3259 if (retval != 0) 3260 break; 3261 3262 if (lun->backend == NULL) { 3263 retval = sbuf_printf(sb, "</lun>\n"); 3264 if (retval != 0) 3265 break; 3266 continue; 3267 } 3268 3269 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3270 (lun->be_lun->maxlba > 0) ? 3271 lun->be_lun->maxlba + 1 : 0); 3272 3273 if (retval != 0) 3274 break; 3275 3276 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3277 lun->be_lun->blocksize); 3278 3279 if (retval != 0) 3280 break; 3281 3282 retval = sbuf_printf(sb, "\t<serial_number>"); 3283 3284 if (retval != 0) 3285 break; 3286 3287 retval = ctl_sbuf_printf_esc(sb, 3288 lun->be_lun->serial_num, 3289 sizeof(lun->be_lun->serial_num)); 3290 3291 if (retval != 0) 3292 break; 3293 3294 retval = sbuf_printf(sb, "</serial_number>\n"); 3295 3296 if (retval != 0) 3297 break; 3298 3299 retval = sbuf_printf(sb, "\t<device_id>"); 3300 3301 if (retval != 0) 3302 break; 3303 3304 retval = ctl_sbuf_printf_esc(sb, 3305 lun->be_lun->device_id, 3306 sizeof(lun->be_lun->device_id)); 3307 3308 if (retval != 0) 3309 break; 3310 3311 retval = sbuf_printf(sb, "</device_id>\n"); 3312 3313 if (retval != 0) 3314 break; 3315 3316 if (lun->backend->lun_info != NULL) { 3317 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3318 if (retval != 0) 3319 break; 3320 } 3321 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3322 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3323 opt->name, opt->value, opt->name); 3324 if (retval != 0) 3325 break; 3326 } 3327 3328 retval = sbuf_printf(sb, "</lun>\n"); 3329 3330 if (retval != 0) 3331 break; 3332 mtx_unlock(&lun->lun_lock); 3333 } 3334 if (lun != NULL) 3335 mtx_unlock(&lun->lun_lock); 3336 mtx_unlock(&softc->ctl_lock); 3337 3338 if ((retval != 0) 3339 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3340 retval = 0; 3341 sbuf_delete(sb); 3342 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3343 snprintf(list->error_str, sizeof(list->error_str), 3344 "Out of space, %d bytes is too small", 3345 list->alloc_len); 3346 break; 3347 } 3348 3349 sbuf_finish(sb); 3350 3351 retval = copyout(sbuf_data(sb), list->lun_xml, 3352 sbuf_len(sb) + 1); 3353 3354 list->fill_len = sbuf_len(sb) + 1; 3355 list->status = CTL_LUN_LIST_OK; 3356 sbuf_delete(sb); 3357 break; 3358 } 3359 case CTL_ISCSI: { 3360 struct ctl_iscsi *ci; 3361 struct ctl_frontend *fe; 3362 3363 ci = (struct ctl_iscsi *)addr; 3364 3365 fe = ctl_frontend_find("iscsi"); 3366 if (fe == NULL) { 3367 ci->status = CTL_ISCSI_ERROR; 3368 snprintf(ci->error_str, sizeof(ci->error_str), 3369 "Frontend \"iscsi\" not found."); 3370 break; 3371 } 3372 3373 retval = fe->ioctl(dev, cmd, addr, flag, td); 3374 break; 3375 } 3376 case CTL_PORT_REQ: { 3377 struct ctl_req *req; 3378 struct ctl_frontend *fe; 3379 3380 req = (struct ctl_req *)addr; 3381 3382 fe = ctl_frontend_find(req->driver); 3383 if (fe == NULL) { 3384 req->status = CTL_LUN_ERROR; 3385 snprintf(req->error_str, sizeof(req->error_str), 3386 "Frontend \"%s\" not found.", req->driver); 3387 break; 3388 } 3389 if (req->num_args > 0) { 3390 req->kern_args = ctl_copyin_args(req->num_args, 3391 req->args, req->error_str, sizeof(req->error_str)); 3392 if (req->kern_args == NULL) { 3393 req->status = CTL_LUN_ERROR; 3394 break; 3395 } 3396 } 3397 3398 retval = fe->ioctl(dev, cmd, addr, flag, td); 3399 3400 if (req->num_args > 0) { 3401 ctl_copyout_args(req->num_args, req->kern_args); 3402 ctl_free_args(req->num_args, req->kern_args); 3403 } 3404 break; 3405 } 3406 case CTL_PORT_LIST: { 3407 struct sbuf *sb; 3408 struct ctl_port *port; 3409 struct ctl_lun_list *list; 3410 struct ctl_option *opt; 3411 int j; 3412 3413 list = (struct ctl_lun_list *)addr; 3414 3415 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3416 if (sb == NULL) { 3417 list->status = CTL_LUN_LIST_ERROR; 3418 snprintf(list->error_str, sizeof(list->error_str), 3419 "Unable to allocate %d bytes for LUN list", 3420 list->alloc_len); 3421 break; 3422 } 3423 3424 sbuf_printf(sb, "<ctlportlist>\n"); 3425 3426 mtx_lock(&softc->ctl_lock); 3427 STAILQ_FOREACH(port, &softc->port_list, links) { 3428 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3429 (uintmax_t)port->targ_port); 3430 3431 /* 3432 * Bail out as soon as we see that we've overfilled 3433 * the buffer. 3434 */ 3435 if (retval != 0) 3436 break; 3437 3438 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3439 "</frontend_type>\n", port->frontend->name); 3440 if (retval != 0) 3441 break; 3442 3443 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3444 port->port_type); 3445 if (retval != 0) 3446 break; 3447 3448 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3449 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3450 if (retval != 0) 3451 break; 3452 3453 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3454 port->port_name); 3455 if (retval != 0) 3456 break; 3457 3458 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3459 port->physical_port); 3460 if (retval != 0) 3461 break; 3462 3463 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3464 port->virtual_port); 3465 if (retval != 0) 3466 break; 3467 3468 if (port->target_devid != NULL) { 3469 sbuf_printf(sb, "\t<target>"); 3470 ctl_id_sbuf(port->target_devid, sb); 3471 sbuf_printf(sb, "</target>\n"); 3472 } 3473 3474 if (port->port_devid != NULL) { 3475 sbuf_printf(sb, "\t<port>"); 3476 ctl_id_sbuf(port->port_devid, sb); 3477 sbuf_printf(sb, "</port>\n"); 3478 } 3479 3480 if (port->port_info != NULL) { 3481 retval = port->port_info(port->onoff_arg, sb); 3482 if (retval != 0) 3483 break; 3484 } 3485 STAILQ_FOREACH(opt, &port->options, links) { 3486 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3487 opt->name, opt->value, opt->name); 3488 if (retval != 0) 3489 break; 3490 } 3491 3492 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3493 if (port->wwpn_iid[j].in_use == 0 || 3494 (port->wwpn_iid[j].wwpn == 0 && 3495 port->wwpn_iid[j].name == NULL)) 3496 continue; 3497 3498 if (port->wwpn_iid[j].name != NULL) 3499 retval = sbuf_printf(sb, 3500 "\t<initiator>%u %s</initiator>\n", 3501 j, port->wwpn_iid[j].name); 3502 else 3503 retval = sbuf_printf(sb, 3504 "\t<initiator>%u naa.%08jx</initiator>\n", 3505 j, port->wwpn_iid[j].wwpn); 3506 if (retval != 0) 3507 break; 3508 } 3509 if (retval != 0) 3510 break; 3511 3512 retval = sbuf_printf(sb, "</targ_port>\n"); 3513 if (retval != 0) 3514 break; 3515 } 3516 mtx_unlock(&softc->ctl_lock); 3517 3518 if ((retval != 0) 3519 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3520 retval = 0; 3521 sbuf_delete(sb); 3522 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3523 snprintf(list->error_str, sizeof(list->error_str), 3524 "Out of space, %d bytes is too small", 3525 list->alloc_len); 3526 break; 3527 } 3528 3529 sbuf_finish(sb); 3530 3531 retval = copyout(sbuf_data(sb), list->lun_xml, 3532 sbuf_len(sb) + 1); 3533 3534 list->fill_len = sbuf_len(sb) + 1; 3535 list->status = CTL_LUN_LIST_OK; 3536 sbuf_delete(sb); 3537 break; 3538 } 3539 default: { 3540 /* XXX KDM should we fix this? */ 3541#if 0 3542 struct ctl_backend_driver *backend; 3543 unsigned int type; 3544 int found; 3545 3546 found = 0; 3547 3548 /* 3549 * We encode the backend type as the ioctl type for backend 3550 * ioctls. So parse it out here, and then search for a 3551 * backend of this type. 3552 */ 3553 type = _IOC_TYPE(cmd); 3554 3555 STAILQ_FOREACH(backend, &softc->be_list, links) { 3556 if (backend->type == type) { 3557 found = 1; 3558 break; 3559 } 3560 } 3561 if (found == 0) { 3562 printf("ctl: unknown ioctl command %#lx or backend " 3563 "%d\n", cmd, type); 3564 retval = EINVAL; 3565 break; 3566 } 3567 retval = backend->ioctl(dev, cmd, addr, flag, td); 3568#endif 3569 retval = ENOTTY; 3570 break; 3571 } 3572 } 3573 return (retval); 3574} 3575 3576uint32_t 3577ctl_get_initindex(struct ctl_nexus *nexus) 3578{ 3579 if (nexus->targ_port < CTL_MAX_PORTS) 3580 return (nexus->initid.id + 3581 (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3582 else 3583 return (nexus->initid.id + 3584 ((nexus->targ_port - CTL_MAX_PORTS) * 3585 CTL_MAX_INIT_PER_PORT)); 3586} 3587 3588uint32_t 3589ctl_get_resindex(struct ctl_nexus *nexus) 3590{ 3591 return (nexus->initid.id + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3592} 3593 3594uint32_t 3595ctl_port_idx(int port_num) 3596{ 3597 if (port_num < CTL_MAX_PORTS) 3598 return(port_num); 3599 else 3600 return(port_num - CTL_MAX_PORTS); 3601} 3602 3603static uint32_t 3604ctl_map_lun(struct ctl_softc *softc, int port_num, uint32_t lun_id) 3605{ 3606 struct ctl_port *port; 3607 3608 port = softc->ctl_ports[ctl_port_idx(port_num)]; 3609 if (port == NULL) 3610 return (UINT32_MAX); 3611 if (port->lun_map == NULL) 3612 return (lun_id); 3613 return (port->lun_map(port->targ_lun_arg, lun_id)); 3614} 3615 3616static uint32_t 3617ctl_map_lun_back(struct ctl_softc *softc, int port_num, uint32_t lun_id) 3618{ 3619 struct ctl_port *port; 3620 uint32_t i; 3621 3622 port = softc->ctl_ports[ctl_port_idx(port_num)]; 3623 if (port->lun_map == NULL) 3624 return (lun_id); 3625 for (i = 0; i < CTL_MAX_LUNS; i++) { 3626 if (port->lun_map(port->targ_lun_arg, i) == lun_id) 3627 return (i); 3628 } 3629 return (UINT32_MAX); 3630} 3631 3632/* 3633 * Note: This only works for bitmask sizes that are at least 32 bits, and 3634 * that are a power of 2. 3635 */ 3636int 3637ctl_ffz(uint32_t *mask, uint32_t size) 3638{ 3639 uint32_t num_chunks, num_pieces; 3640 int i, j; 3641 3642 num_chunks = (size >> 5); 3643 if (num_chunks == 0) 3644 num_chunks++; 3645 num_pieces = MIN((sizeof(uint32_t) * 8), size); 3646 3647 for (i = 0; i < num_chunks; i++) { 3648 for (j = 0; j < num_pieces; j++) { 3649 if ((mask[i] & (1 << j)) == 0) 3650 return ((i << 5) + j); 3651 } 3652 } 3653 3654 return (-1); 3655} 3656 3657int 3658ctl_set_mask(uint32_t *mask, uint32_t bit) 3659{ 3660 uint32_t chunk, piece; 3661 3662 chunk = bit >> 5; 3663 piece = bit % (sizeof(uint32_t) * 8); 3664 3665 if ((mask[chunk] & (1 << piece)) != 0) 3666 return (-1); 3667 else 3668 mask[chunk] |= (1 << piece); 3669 3670 return (0); 3671} 3672 3673int 3674ctl_clear_mask(uint32_t *mask, uint32_t bit) 3675{ 3676 uint32_t chunk, piece; 3677 3678 chunk = bit >> 5; 3679 piece = bit % (sizeof(uint32_t) * 8); 3680 3681 if ((mask[chunk] & (1 << piece)) == 0) 3682 return (-1); 3683 else 3684 mask[chunk] &= ~(1 << piece); 3685 3686 return (0); 3687} 3688 3689int 3690ctl_is_set(uint32_t *mask, uint32_t bit) 3691{ 3692 uint32_t chunk, piece; 3693 3694 chunk = bit >> 5; 3695 piece = bit % (sizeof(uint32_t) * 8); 3696 3697 if ((mask[chunk] & (1 << piece)) == 0) 3698 return (0); 3699 else 3700 return (1); 3701} 3702 3703static uint64_t 3704ctl_get_prkey(struct ctl_lun *lun, uint32_t residx) 3705{ 3706 uint64_t *t; 3707 3708 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3709 if (t == NULL) 3710 return (0); 3711 return (t[residx % CTL_MAX_INIT_PER_PORT]); 3712} 3713 3714static void 3715ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx) 3716{ 3717 uint64_t *t; 3718 3719 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3720 if (t == NULL) 3721 return; 3722 t[residx % CTL_MAX_INIT_PER_PORT] = 0; 3723} 3724 3725static void 3726ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx) 3727{ 3728 uint64_t *p; 3729 u_int i; 3730 3731 i = residx/CTL_MAX_INIT_PER_PORT; 3732 if (lun->pr_keys[i] != NULL) 3733 return; 3734 mtx_unlock(&lun->lun_lock); 3735 p = malloc(sizeof(uint64_t) * CTL_MAX_INIT_PER_PORT, M_CTL, 3736 M_WAITOK | M_ZERO); 3737 mtx_lock(&lun->lun_lock); 3738 if (lun->pr_keys[i] == NULL) 3739 lun->pr_keys[i] = p; 3740 else 3741 free(p, M_CTL); 3742} 3743 3744static void 3745ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key) 3746{ 3747 uint64_t *t; 3748 3749 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3750 KASSERT(t != NULL, ("prkey %d is not allocated", residx)); 3751 t[residx % CTL_MAX_INIT_PER_PORT] = key; 3752} 3753 3754/* 3755 * ctl_softc, pool_name, total_ctl_io are passed in. 3756 * npool is passed out. 3757 */ 3758int 3759ctl_pool_create(struct ctl_softc *ctl_softc, const char *pool_name, 3760 uint32_t total_ctl_io, void **npool) 3761{ 3762#ifdef IO_POOLS 3763 struct ctl_io_pool *pool; 3764 3765 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3766 M_NOWAIT | M_ZERO); 3767 if (pool == NULL) 3768 return (ENOMEM); 3769 3770 snprintf(pool->name, sizeof(pool->name), "CTL IO %s", pool_name); 3771 pool->ctl_softc = ctl_softc; 3772 pool->zone = uma_zsecond_create(pool->name, NULL, 3773 NULL, NULL, NULL, ctl_softc->io_zone); 3774 /* uma_prealloc(pool->zone, total_ctl_io); */ 3775 3776 *npool = pool; 3777#else 3778 *npool = ctl_softc->io_zone; 3779#endif 3780 return (0); 3781} 3782 3783void 3784ctl_pool_free(struct ctl_io_pool *pool) 3785{ 3786 3787 if (pool == NULL) 3788 return; 3789 3790#ifdef IO_POOLS 3791 uma_zdestroy(pool->zone); 3792 free(pool, M_CTL); 3793#endif 3794} 3795 3796union ctl_io * 3797ctl_alloc_io(void *pool_ref) 3798{ 3799 union ctl_io *io; 3800#ifdef IO_POOLS 3801 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3802 3803 io = uma_zalloc(pool->zone, M_WAITOK); 3804#else 3805 io = uma_zalloc((uma_zone_t)pool_ref, M_WAITOK); 3806#endif 3807 if (io != NULL) 3808 io->io_hdr.pool = pool_ref; 3809 return (io); 3810} 3811 3812union ctl_io * 3813ctl_alloc_io_nowait(void *pool_ref) 3814{ 3815 union ctl_io *io; 3816#ifdef IO_POOLS 3817 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3818 3819 io = uma_zalloc(pool->zone, M_NOWAIT); 3820#else 3821 io = uma_zalloc((uma_zone_t)pool_ref, M_NOWAIT); 3822#endif 3823 if (io != NULL) 3824 io->io_hdr.pool = pool_ref; 3825 return (io); 3826} 3827 3828void 3829ctl_free_io(union ctl_io *io) 3830{ 3831#ifdef IO_POOLS 3832 struct ctl_io_pool *pool; 3833#endif 3834 3835 if (io == NULL) 3836 return; 3837 3838#ifdef IO_POOLS 3839 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3840 uma_zfree(pool->zone, io); 3841#else 3842 uma_zfree((uma_zone_t)io->io_hdr.pool, io); 3843#endif 3844} 3845 3846void 3847ctl_zero_io(union ctl_io *io) 3848{ 3849 void *pool_ref; 3850 3851 if (io == NULL) 3852 return; 3853 3854 /* 3855 * May need to preserve linked list pointers at some point too. 3856 */ 3857 pool_ref = io->io_hdr.pool; 3858 memset(io, 0, sizeof(*io)); 3859 io->io_hdr.pool = pool_ref; 3860} 3861 3862/* 3863 * This routine is currently used for internal copies of ctl_ios that need 3864 * to persist for some reason after we've already returned status to the 3865 * FETD. (Thus the flag set.) 3866 * 3867 * XXX XXX 3868 * Note that this makes a blind copy of all fields in the ctl_io, except 3869 * for the pool reference. This includes any memory that has been 3870 * allocated! That memory will no longer be valid after done has been 3871 * called, so this would be VERY DANGEROUS for command that actually does 3872 * any reads or writes. Right now (11/7/2005), this is only used for immediate 3873 * start and stop commands, which don't transfer any data, so this is not a 3874 * problem. If it is used for anything else, the caller would also need to 3875 * allocate data buffer space and this routine would need to be modified to 3876 * copy the data buffer(s) as well. 3877 */ 3878void 3879ctl_copy_io(union ctl_io *src, union ctl_io *dest) 3880{ 3881 void *pool_ref; 3882 3883 if ((src == NULL) 3884 || (dest == NULL)) 3885 return; 3886 3887 /* 3888 * May need to preserve linked list pointers at some point too. 3889 */ 3890 pool_ref = dest->io_hdr.pool; 3891 3892 memcpy(dest, src, MIN(sizeof(*src), sizeof(*dest))); 3893 3894 dest->io_hdr.pool = pool_ref; 3895 /* 3896 * We need to know that this is an internal copy, and doesn't need 3897 * to get passed back to the FETD that allocated it. 3898 */ 3899 dest->io_hdr.flags |= CTL_FLAG_INT_COPY; 3900} 3901 3902int 3903ctl_expand_number(const char *buf, uint64_t *num) 3904{ 3905 char *endptr; 3906 uint64_t number; 3907 unsigned shift; 3908 3909 number = strtoq(buf, &endptr, 0); 3910 3911 switch (tolower((unsigned char)*endptr)) { 3912 case 'e': 3913 shift = 60; 3914 break; 3915 case 'p': 3916 shift = 50; 3917 break; 3918 case 't': 3919 shift = 40; 3920 break; 3921 case 'g': 3922 shift = 30; 3923 break; 3924 case 'm': 3925 shift = 20; 3926 break; 3927 case 'k': 3928 shift = 10; 3929 break; 3930 case 'b': 3931 case '\0': /* No unit. */ 3932 *num = number; 3933 return (0); 3934 default: 3935 /* Unrecognized unit. */ 3936 return (-1); 3937 } 3938 3939 if ((number << shift) >> shift != number) { 3940 /* Overflow */ 3941 return (-1); 3942 } 3943 *num = number << shift; 3944 return (0); 3945} 3946 3947 3948/* 3949 * This routine could be used in the future to load default and/or saved 3950 * mode page parameters for a particuar lun. 3951 */ 3952static int 3953ctl_init_page_index(struct ctl_lun *lun) 3954{ 3955 int i; 3956 struct ctl_page_index *page_index; 3957 const char *value; 3958 uint64_t ival; 3959 3960 memcpy(&lun->mode_pages.index, page_index_template, 3961 sizeof(page_index_template)); 3962 3963 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 3964 3965 page_index = &lun->mode_pages.index[i]; 3966 /* 3967 * If this is a disk-only mode page, there's no point in 3968 * setting it up. For some pages, we have to have some 3969 * basic information about the disk in order to calculate the 3970 * mode page data. 3971 */ 3972 if ((lun->be_lun->lun_type != T_DIRECT) 3973 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 3974 continue; 3975 3976 switch (page_index->page_code & SMPH_PC_MASK) { 3977 case SMS_RW_ERROR_RECOVERY_PAGE: { 3978 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3979 panic("subpage is incorrect!"); 3980 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT], 3981 &rw_er_page_default, 3982 sizeof(rw_er_page_default)); 3983 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CHANGEABLE], 3984 &rw_er_page_changeable, 3985 sizeof(rw_er_page_changeable)); 3986 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_DEFAULT], 3987 &rw_er_page_default, 3988 sizeof(rw_er_page_default)); 3989 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_SAVED], 3990 &rw_er_page_default, 3991 sizeof(rw_er_page_default)); 3992 page_index->page_data = 3993 (uint8_t *)lun->mode_pages.rw_er_page; 3994 break; 3995 } 3996 case SMS_FORMAT_DEVICE_PAGE: { 3997 struct scsi_format_page *format_page; 3998 3999 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4000 panic("subpage is incorrect!"); 4001 4002 /* 4003 * Sectors per track are set above. Bytes per 4004 * sector need to be set here on a per-LUN basis. 4005 */ 4006 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 4007 &format_page_default, 4008 sizeof(format_page_default)); 4009 memcpy(&lun->mode_pages.format_page[ 4010 CTL_PAGE_CHANGEABLE], &format_page_changeable, 4011 sizeof(format_page_changeable)); 4012 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 4013 &format_page_default, 4014 sizeof(format_page_default)); 4015 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 4016 &format_page_default, 4017 sizeof(format_page_default)); 4018 4019 format_page = &lun->mode_pages.format_page[ 4020 CTL_PAGE_CURRENT]; 4021 scsi_ulto2b(lun->be_lun->blocksize, 4022 format_page->bytes_per_sector); 4023 4024 format_page = &lun->mode_pages.format_page[ 4025 CTL_PAGE_DEFAULT]; 4026 scsi_ulto2b(lun->be_lun->blocksize, 4027 format_page->bytes_per_sector); 4028 4029 format_page = &lun->mode_pages.format_page[ 4030 CTL_PAGE_SAVED]; 4031 scsi_ulto2b(lun->be_lun->blocksize, 4032 format_page->bytes_per_sector); 4033 4034 page_index->page_data = 4035 (uint8_t *)lun->mode_pages.format_page; 4036 break; 4037 } 4038 case SMS_RIGID_DISK_PAGE: { 4039 struct scsi_rigid_disk_page *rigid_disk_page; 4040 uint32_t sectors_per_cylinder; 4041 uint64_t cylinders; 4042#ifndef __XSCALE__ 4043 int shift; 4044#endif /* !__XSCALE__ */ 4045 4046 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4047 panic("invalid subpage value %d", 4048 page_index->subpage); 4049 4050 /* 4051 * Rotation rate and sectors per track are set 4052 * above. We calculate the cylinders here based on 4053 * capacity. Due to the number of heads and 4054 * sectors per track we're using, smaller arrays 4055 * may turn out to have 0 cylinders. Linux and 4056 * FreeBSD don't pay attention to these mode pages 4057 * to figure out capacity, but Solaris does. It 4058 * seems to deal with 0 cylinders just fine, and 4059 * works out a fake geometry based on the capacity. 4060 */ 4061 memcpy(&lun->mode_pages.rigid_disk_page[ 4062 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 4063 sizeof(rigid_disk_page_default)); 4064 memcpy(&lun->mode_pages.rigid_disk_page[ 4065 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4066 sizeof(rigid_disk_page_changeable)); 4067 4068 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4069 CTL_DEFAULT_HEADS; 4070 4071 /* 4072 * The divide method here will be more accurate, 4073 * probably, but results in floating point being 4074 * used in the kernel on i386 (__udivdi3()). On the 4075 * XScale, though, __udivdi3() is implemented in 4076 * software. 4077 * 4078 * The shift method for cylinder calculation is 4079 * accurate if sectors_per_cylinder is a power of 4080 * 2. Otherwise it might be slightly off -- you 4081 * might have a bit of a truncation problem. 4082 */ 4083#ifdef __XSCALE__ 4084 cylinders = (lun->be_lun->maxlba + 1) / 4085 sectors_per_cylinder; 4086#else 4087 for (shift = 31; shift > 0; shift--) { 4088 if (sectors_per_cylinder & (1 << shift)) 4089 break; 4090 } 4091 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4092#endif 4093 4094 /* 4095 * We've basically got 3 bytes, or 24 bits for the 4096 * cylinder size in the mode page. If we're over, 4097 * just round down to 2^24. 4098 */ 4099 if (cylinders > 0xffffff) 4100 cylinders = 0xffffff; 4101 4102 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4103 CTL_PAGE_DEFAULT]; 4104 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4105 4106 if ((value = ctl_get_opt(&lun->be_lun->options, 4107 "rpm")) != NULL) { 4108 scsi_ulto2b(strtol(value, NULL, 0), 4109 rigid_disk_page->rotation_rate); 4110 } 4111 4112 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_CURRENT], 4113 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4114 sizeof(rigid_disk_page_default)); 4115 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_SAVED], 4116 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4117 sizeof(rigid_disk_page_default)); 4118 4119 page_index->page_data = 4120 (uint8_t *)lun->mode_pages.rigid_disk_page; 4121 break; 4122 } 4123 case SMS_CACHING_PAGE: { 4124 struct scsi_caching_page *caching_page; 4125 4126 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4127 panic("invalid subpage value %d", 4128 page_index->subpage); 4129 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4130 &caching_page_default, 4131 sizeof(caching_page_default)); 4132 memcpy(&lun->mode_pages.caching_page[ 4133 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4134 sizeof(caching_page_changeable)); 4135 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4136 &caching_page_default, 4137 sizeof(caching_page_default)); 4138 caching_page = &lun->mode_pages.caching_page[ 4139 CTL_PAGE_SAVED]; 4140 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4141 if (value != NULL && strcmp(value, "off") == 0) 4142 caching_page->flags1 &= ~SCP_WCE; 4143 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4144 if (value != NULL && strcmp(value, "off") == 0) 4145 caching_page->flags1 |= SCP_RCD; 4146 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4147 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4148 sizeof(caching_page_default)); 4149 page_index->page_data = 4150 (uint8_t *)lun->mode_pages.caching_page; 4151 break; 4152 } 4153 case SMS_CONTROL_MODE_PAGE: { 4154 struct scsi_control_page *control_page; 4155 4156 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4157 panic("invalid subpage value %d", 4158 page_index->subpage); 4159 4160 memcpy(&lun->mode_pages.control_page[CTL_PAGE_DEFAULT], 4161 &control_page_default, 4162 sizeof(control_page_default)); 4163 memcpy(&lun->mode_pages.control_page[ 4164 CTL_PAGE_CHANGEABLE], &control_page_changeable, 4165 sizeof(control_page_changeable)); 4166 memcpy(&lun->mode_pages.control_page[CTL_PAGE_SAVED], 4167 &control_page_default, 4168 sizeof(control_page_default)); 4169 control_page = &lun->mode_pages.control_page[ 4170 CTL_PAGE_SAVED]; 4171 value = ctl_get_opt(&lun->be_lun->options, "reordering"); 4172 if (value != NULL && strcmp(value, "unrestricted") == 0) { 4173 control_page->queue_flags &= ~SCP_QUEUE_ALG_MASK; 4174 control_page->queue_flags |= SCP_QUEUE_ALG_UNRESTRICTED; 4175 } 4176 memcpy(&lun->mode_pages.control_page[CTL_PAGE_CURRENT], 4177 &lun->mode_pages.control_page[CTL_PAGE_SAVED], 4178 sizeof(control_page_default)); 4179 page_index->page_data = 4180 (uint8_t *)lun->mode_pages.control_page; 4181 break; 4182 4183 } 4184 case SMS_INFO_EXCEPTIONS_PAGE: { 4185 switch (page_index->subpage) { 4186 case SMS_SUBPAGE_PAGE_0: 4187 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_CURRENT], 4188 &ie_page_default, 4189 sizeof(ie_page_default)); 4190 memcpy(&lun->mode_pages.ie_page[ 4191 CTL_PAGE_CHANGEABLE], &ie_page_changeable, 4192 sizeof(ie_page_changeable)); 4193 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_DEFAULT], 4194 &ie_page_default, 4195 sizeof(ie_page_default)); 4196 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_SAVED], 4197 &ie_page_default, 4198 sizeof(ie_page_default)); 4199 page_index->page_data = 4200 (uint8_t *)lun->mode_pages.ie_page; 4201 break; 4202 case 0x02: { 4203 struct ctl_logical_block_provisioning_page *page; 4204 4205 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_DEFAULT], 4206 &lbp_page_default, 4207 sizeof(lbp_page_default)); 4208 memcpy(&lun->mode_pages.lbp_page[ 4209 CTL_PAGE_CHANGEABLE], &lbp_page_changeable, 4210 sizeof(lbp_page_changeable)); 4211 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4212 &lbp_page_default, 4213 sizeof(lbp_page_default)); 4214 page = &lun->mode_pages.lbp_page[CTL_PAGE_SAVED]; 4215 value = ctl_get_opt(&lun->be_lun->options, 4216 "avail-threshold"); 4217 if (value != NULL && 4218 ctl_expand_number(value, &ival) == 0) { 4219 page->descr[0].flags |= SLBPPD_ENABLED | 4220 SLBPPD_ARMING_DEC; 4221 if (lun->be_lun->blocksize) 4222 ival /= lun->be_lun->blocksize; 4223 else 4224 ival /= 512; 4225 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4226 page->descr[0].count); 4227 } 4228 value = ctl_get_opt(&lun->be_lun->options, 4229 "used-threshold"); 4230 if (value != NULL && 4231 ctl_expand_number(value, &ival) == 0) { 4232 page->descr[1].flags |= SLBPPD_ENABLED | 4233 SLBPPD_ARMING_INC; 4234 if (lun->be_lun->blocksize) 4235 ival /= lun->be_lun->blocksize; 4236 else 4237 ival /= 512; 4238 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4239 page->descr[1].count); 4240 } 4241 value = ctl_get_opt(&lun->be_lun->options, 4242 "pool-avail-threshold"); 4243 if (value != NULL && 4244 ctl_expand_number(value, &ival) == 0) { 4245 page->descr[2].flags |= SLBPPD_ENABLED | 4246 SLBPPD_ARMING_DEC; 4247 if (lun->be_lun->blocksize) 4248 ival /= lun->be_lun->blocksize; 4249 else 4250 ival /= 512; 4251 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4252 page->descr[2].count); 4253 } 4254 value = ctl_get_opt(&lun->be_lun->options, 4255 "pool-used-threshold"); 4256 if (value != NULL && 4257 ctl_expand_number(value, &ival) == 0) { 4258 page->descr[3].flags |= SLBPPD_ENABLED | 4259 SLBPPD_ARMING_INC; 4260 if (lun->be_lun->blocksize) 4261 ival /= lun->be_lun->blocksize; 4262 else 4263 ival /= 512; 4264 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4265 page->descr[3].count); 4266 } 4267 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_CURRENT], 4268 &lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4269 sizeof(lbp_page_default)); 4270 page_index->page_data = 4271 (uint8_t *)lun->mode_pages.lbp_page; 4272 }} 4273 break; 4274 } 4275 case SMS_VENDOR_SPECIFIC_PAGE:{ 4276 switch (page_index->subpage) { 4277 case DBGCNF_SUBPAGE_CODE: { 4278 struct copan_debugconf_subpage *current_page, 4279 *saved_page; 4280 4281 memcpy(&lun->mode_pages.debugconf_subpage[ 4282 CTL_PAGE_CURRENT], 4283 &debugconf_page_default, 4284 sizeof(debugconf_page_default)); 4285 memcpy(&lun->mode_pages.debugconf_subpage[ 4286 CTL_PAGE_CHANGEABLE], 4287 &debugconf_page_changeable, 4288 sizeof(debugconf_page_changeable)); 4289 memcpy(&lun->mode_pages.debugconf_subpage[ 4290 CTL_PAGE_DEFAULT], 4291 &debugconf_page_default, 4292 sizeof(debugconf_page_default)); 4293 memcpy(&lun->mode_pages.debugconf_subpage[ 4294 CTL_PAGE_SAVED], 4295 &debugconf_page_default, 4296 sizeof(debugconf_page_default)); 4297 page_index->page_data = 4298 (uint8_t *)lun->mode_pages.debugconf_subpage; 4299 4300 current_page = (struct copan_debugconf_subpage *) 4301 (page_index->page_data + 4302 (page_index->page_len * 4303 CTL_PAGE_CURRENT)); 4304 saved_page = (struct copan_debugconf_subpage *) 4305 (page_index->page_data + 4306 (page_index->page_len * 4307 CTL_PAGE_SAVED)); 4308 break; 4309 } 4310 default: 4311 panic("invalid subpage value %d", 4312 page_index->subpage); 4313 break; 4314 } 4315 break; 4316 } 4317 default: 4318 panic("invalid page value %d", 4319 page_index->page_code & SMPH_PC_MASK); 4320 break; 4321 } 4322 } 4323 4324 return (CTL_RETVAL_COMPLETE); 4325} 4326 4327static int 4328ctl_init_log_page_index(struct ctl_lun *lun) 4329{ 4330 struct ctl_page_index *page_index; 4331 int i, j, k, prev; 4332 4333 memcpy(&lun->log_pages.index, log_page_index_template, 4334 sizeof(log_page_index_template)); 4335 4336 prev = -1; 4337 for (i = 0, j = 0, k = 0; i < CTL_NUM_LOG_PAGES; i++) { 4338 4339 page_index = &lun->log_pages.index[i]; 4340 /* 4341 * If this is a disk-only mode page, there's no point in 4342 * setting it up. For some pages, we have to have some 4343 * basic information about the disk in order to calculate the 4344 * mode page data. 4345 */ 4346 if ((lun->be_lun->lun_type != T_DIRECT) 4347 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 4348 continue; 4349 4350 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING && 4351 lun->backend->lun_attr == NULL) 4352 continue; 4353 4354 if (page_index->page_code != prev) { 4355 lun->log_pages.pages_page[j] = page_index->page_code; 4356 prev = page_index->page_code; 4357 j++; 4358 } 4359 lun->log_pages.subpages_page[k*2] = page_index->page_code; 4360 lun->log_pages.subpages_page[k*2+1] = page_index->subpage; 4361 k++; 4362 } 4363 lun->log_pages.index[0].page_data = &lun->log_pages.pages_page[0]; 4364 lun->log_pages.index[0].page_len = j; 4365 lun->log_pages.index[1].page_data = &lun->log_pages.subpages_page[0]; 4366 lun->log_pages.index[1].page_len = k * 2; 4367 lun->log_pages.index[2].page_data = &lun->log_pages.lbp_page[0]; 4368 lun->log_pages.index[2].page_len = 12*CTL_NUM_LBP_PARAMS; 4369 4370 return (CTL_RETVAL_COMPLETE); 4371} 4372 4373static int 4374hex2bin(const char *str, uint8_t *buf, int buf_size) 4375{ 4376 int i; 4377 u_char c; 4378 4379 memset(buf, 0, buf_size); 4380 while (isspace(str[0])) 4381 str++; 4382 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) 4383 str += 2; 4384 buf_size *= 2; 4385 for (i = 0; str[i] != 0 && i < buf_size; i++) { 4386 c = str[i]; 4387 if (isdigit(c)) 4388 c -= '0'; 4389 else if (isalpha(c)) 4390 c -= isupper(c) ? 'A' - 10 : 'a' - 10; 4391 else 4392 break; 4393 if (c >= 16) 4394 break; 4395 if ((i & 1) == 0) 4396 buf[i / 2] |= (c << 4); 4397 else 4398 buf[i / 2] |= c; 4399 } 4400 return ((i + 1) / 2); 4401} 4402 4403/* 4404 * LUN allocation. 4405 * 4406 * Requirements: 4407 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4408 * wants us to allocate the LUN and he can block. 4409 * - ctl_softc is always set 4410 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4411 * 4412 * Returns 0 for success, non-zero (errno) for failure. 4413 */ 4414static int 4415ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4416 struct ctl_be_lun *const be_lun, struct ctl_id target_id) 4417{ 4418 struct ctl_lun *nlun, *lun; 4419 struct ctl_port *port; 4420 struct scsi_vpd_id_descriptor *desc; 4421 struct scsi_vpd_id_t10 *t10id; 4422 const char *eui, *naa, *scsiname, *vendor, *value; 4423 int lun_number, i, lun_malloced; 4424 int devidlen, idlen1, idlen2 = 0, len; 4425 4426 if (be_lun == NULL) 4427 return (EINVAL); 4428 4429 /* 4430 * We currently only support Direct Access or Processor LUN types. 4431 */ 4432 switch (be_lun->lun_type) { 4433 case T_DIRECT: 4434 break; 4435 case T_PROCESSOR: 4436 break; 4437 case T_SEQUENTIAL: 4438 case T_CHANGER: 4439 default: 4440 be_lun->lun_config_status(be_lun->be_lun, 4441 CTL_LUN_CONFIG_FAILURE); 4442 break; 4443 } 4444 if (ctl_lun == NULL) { 4445 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4446 lun_malloced = 1; 4447 } else { 4448 lun_malloced = 0; 4449 lun = ctl_lun; 4450 } 4451 4452 memset(lun, 0, sizeof(*lun)); 4453 if (lun_malloced) 4454 lun->flags = CTL_LUN_MALLOCED; 4455 4456 /* Generate LUN ID. */ 4457 devidlen = max(CTL_DEVID_MIN_LEN, 4458 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4459 idlen1 = sizeof(*t10id) + devidlen; 4460 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4461 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4462 if (scsiname != NULL) { 4463 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4464 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4465 } 4466 eui = ctl_get_opt(&be_lun->options, "eui"); 4467 if (eui != NULL) { 4468 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4469 } 4470 naa = ctl_get_opt(&be_lun->options, "naa"); 4471 if (naa != NULL) { 4472 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4473 } 4474 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4475 M_CTL, M_WAITOK | M_ZERO); 4476 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4477 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4478 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4479 desc->length = idlen1; 4480 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4481 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4482 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4483 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4484 } else { 4485 strncpy(t10id->vendor, vendor, 4486 min(sizeof(t10id->vendor), strlen(vendor))); 4487 } 4488 strncpy((char *)t10id->vendor_spec_id, 4489 (char *)be_lun->device_id, devidlen); 4490 if (scsiname != NULL) { 4491 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4492 desc->length); 4493 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4494 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4495 SVPD_ID_TYPE_SCSI_NAME; 4496 desc->length = idlen2; 4497 strlcpy(desc->identifier, scsiname, idlen2); 4498 } 4499 if (eui != NULL) { 4500 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4501 desc->length); 4502 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4503 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4504 SVPD_ID_TYPE_EUI64; 4505 desc->length = hex2bin(eui, desc->identifier, 16); 4506 desc->length = desc->length > 12 ? 16 : 4507 (desc->length > 8 ? 12 : 8); 4508 len -= 16 - desc->length; 4509 } 4510 if (naa != NULL) { 4511 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4512 desc->length); 4513 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4514 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4515 SVPD_ID_TYPE_NAA; 4516 desc->length = hex2bin(naa, desc->identifier, 16); 4517 desc->length = desc->length > 8 ? 16 : 8; 4518 len -= 16 - desc->length; 4519 } 4520 lun->lun_devid->len = len; 4521 4522 mtx_lock(&ctl_softc->ctl_lock); 4523 /* 4524 * See if the caller requested a particular LUN number. If so, see 4525 * if it is available. Otherwise, allocate the first available LUN. 4526 */ 4527 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4528 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4529 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4530 mtx_unlock(&ctl_softc->ctl_lock); 4531 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4532 printf("ctl: requested LUN ID %d is higher " 4533 "than CTL_MAX_LUNS - 1 (%d)\n", 4534 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4535 } else { 4536 /* 4537 * XXX KDM return an error, or just assign 4538 * another LUN ID in this case?? 4539 */ 4540 printf("ctl: requested LUN ID %d is already " 4541 "in use\n", be_lun->req_lun_id); 4542 } 4543 if (lun->flags & CTL_LUN_MALLOCED) 4544 free(lun, M_CTL); 4545 be_lun->lun_config_status(be_lun->be_lun, 4546 CTL_LUN_CONFIG_FAILURE); 4547 return (ENOSPC); 4548 } 4549 lun_number = be_lun->req_lun_id; 4550 } else { 4551 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, CTL_MAX_LUNS); 4552 if (lun_number == -1) { 4553 mtx_unlock(&ctl_softc->ctl_lock); 4554 printf("ctl: can't allocate LUN on target %ju, out of " 4555 "LUNs\n", (uintmax_t)target_id.id); 4556 if (lun->flags & CTL_LUN_MALLOCED) 4557 free(lun, M_CTL); 4558 be_lun->lun_config_status(be_lun->be_lun, 4559 CTL_LUN_CONFIG_FAILURE); 4560 return (ENOSPC); 4561 } 4562 } 4563 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4564 4565 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4566 lun->target = target_id; 4567 lun->lun = lun_number; 4568 lun->be_lun = be_lun; 4569 /* 4570 * The processor LUN is always enabled. Disk LUNs come on line 4571 * disabled, and must be enabled by the backend. 4572 */ 4573 lun->flags |= CTL_LUN_DISABLED; 4574 lun->backend = be_lun->be; 4575 be_lun->ctl_lun = lun; 4576 be_lun->lun_id = lun_number; 4577 atomic_add_int(&be_lun->be->num_luns, 1); 4578 if (be_lun->flags & CTL_LUN_FLAG_OFFLINE) 4579 lun->flags |= CTL_LUN_OFFLINE; 4580 4581 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4582 lun->flags |= CTL_LUN_STOPPED; 4583 4584 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4585 lun->flags |= CTL_LUN_INOPERABLE; 4586 4587 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4588 lun->flags |= CTL_LUN_PRIMARY_SC; 4589 4590 value = ctl_get_opt(&be_lun->options, "readonly"); 4591 if (value != NULL && strcmp(value, "on") == 0) 4592 lun->flags |= CTL_LUN_READONLY; 4593 4594 lun->serseq = CTL_LUN_SERSEQ_OFF; 4595 if (be_lun->flags & CTL_LUN_FLAG_SERSEQ_READ) 4596 lun->serseq = CTL_LUN_SERSEQ_READ; 4597 value = ctl_get_opt(&be_lun->options, "serseq"); 4598 if (value != NULL && strcmp(value, "on") == 0) 4599 lun->serseq = CTL_LUN_SERSEQ_ON; 4600 else if (value != NULL && strcmp(value, "read") == 0) 4601 lun->serseq = CTL_LUN_SERSEQ_READ; 4602 else if (value != NULL && strcmp(value, "off") == 0) 4603 lun->serseq = CTL_LUN_SERSEQ_OFF; 4604 4605 lun->ctl_softc = ctl_softc; 4606 TAILQ_INIT(&lun->ooa_queue); 4607 TAILQ_INIT(&lun->blocked_queue); 4608 STAILQ_INIT(&lun->error_list); 4609 ctl_tpc_lun_init(lun); 4610 4611 /* 4612 * Initialize the mode and log page index. 4613 */ 4614 ctl_init_page_index(lun); 4615 ctl_init_log_page_index(lun); 4616 4617 /* 4618 * Now, before we insert this lun on the lun list, set the lun 4619 * inventory changed UA for all other luns. 4620 */ 4621 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4622 mtx_lock(&nlun->lun_lock); 4623 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4624 mtx_unlock(&nlun->lun_lock); 4625 } 4626 4627 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4628 4629 ctl_softc->ctl_luns[lun_number] = lun; 4630 4631 ctl_softc->num_luns++; 4632 4633 /* Setup statistics gathering */ 4634 lun->stats.device_type = be_lun->lun_type; 4635 lun->stats.lun_number = lun_number; 4636 if (lun->stats.device_type == T_DIRECT) 4637 lun->stats.blocksize = be_lun->blocksize; 4638 else 4639 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4640 for (i = 0;i < CTL_MAX_PORTS;i++) 4641 lun->stats.ports[i].targ_port = i; 4642 4643 mtx_unlock(&ctl_softc->ctl_lock); 4644 4645 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4646 4647 /* 4648 * Run through each registered FETD and bring it online if it isn't 4649 * already. Enable the target ID if it hasn't been enabled, and 4650 * enable this particular LUN. 4651 */ 4652 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4653 int retval; 4654 4655 retval = port->lun_enable(port->targ_lun_arg, target_id,lun_number); 4656 if (retval != 0) { 4657 printf("ctl_alloc_lun: FETD %s port %d returned error " 4658 "%d for lun_enable on target %ju lun %d\n", 4659 port->port_name, port->targ_port, retval, 4660 (uintmax_t)target_id.id, lun_number); 4661 } else 4662 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4663 } 4664 return (0); 4665} 4666 4667/* 4668 * Delete a LUN. 4669 * Assumptions: 4670 * - LUN has already been marked invalid and any pending I/O has been taken 4671 * care of. 4672 */ 4673static int 4674ctl_free_lun(struct ctl_lun *lun) 4675{ 4676 struct ctl_softc *softc; 4677#if 0 4678 struct ctl_port *port; 4679#endif 4680 struct ctl_lun *nlun; 4681 int i; 4682 4683 softc = lun->ctl_softc; 4684 4685 mtx_assert(&softc->ctl_lock, MA_OWNED); 4686 4687 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4688 4689 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4690 4691 softc->ctl_luns[lun->lun] = NULL; 4692 4693 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4694 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4695 4696 softc->num_luns--; 4697 4698 /* 4699 * XXX KDM this scheme only works for a single target/multiple LUN 4700 * setup. It needs to be revamped for a multiple target scheme. 4701 * 4702 * XXX KDM this results in port->lun_disable() getting called twice, 4703 * once when ctl_disable_lun() is called, and a second time here. 4704 * We really need to re-think the LUN disable semantics. There 4705 * should probably be several steps/levels to LUN removal: 4706 * - disable 4707 * - invalidate 4708 * - free 4709 * 4710 * Right now we only have a disable method when communicating to 4711 * the front end ports, at least for individual LUNs. 4712 */ 4713#if 0 4714 STAILQ_FOREACH(port, &softc->port_list, links) { 4715 int retval; 4716 4717 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4718 lun->lun); 4719 if (retval != 0) { 4720 printf("ctl_free_lun: FETD %s port %d returned error " 4721 "%d for lun_disable on target %ju lun %jd\n", 4722 port->port_name, port->targ_port, retval, 4723 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4724 } 4725 4726 if (STAILQ_FIRST(&softc->lun_list) == NULL) { 4727 port->status &= ~CTL_PORT_STATUS_LUN_ONLINE; 4728 4729 retval = port->targ_disable(port->targ_lun_arg,lun->target); 4730 if (retval != 0) { 4731 printf("ctl_free_lun: FETD %s port %d " 4732 "returned error %d for targ_disable on " 4733 "target %ju\n", port->port_name, 4734 port->targ_port, retval, 4735 (uintmax_t)lun->target.id); 4736 } else 4737 port->status &= ~CTL_PORT_STATUS_TARG_ONLINE; 4738 4739 if ((port->status & CTL_PORT_STATUS_TARG_ONLINE) != 0) 4740 continue; 4741 4742#if 0 4743 port->port_offline(port->onoff_arg); 4744 port->status &= ~CTL_PORT_STATUS_ONLINE; 4745#endif 4746 } 4747 } 4748#endif 4749 4750 /* 4751 * Tell the backend to free resources, if this LUN has a backend. 4752 */ 4753 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4754 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4755 4756 ctl_tpc_lun_shutdown(lun); 4757 mtx_destroy(&lun->lun_lock); 4758 free(lun->lun_devid, M_CTL); 4759 for (i = 0; i < CTL_MAX_PORTS; i++) 4760 free(lun->pending_ua[i], M_CTL); 4761 for (i = 0; i < 2 * CTL_MAX_PORTS; i++) 4762 free(lun->pr_keys[i], M_CTL); 4763 free(lun->write_buffer, M_CTL); 4764 if (lun->flags & CTL_LUN_MALLOCED) 4765 free(lun, M_CTL); 4766 4767 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4768 mtx_lock(&nlun->lun_lock); 4769 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4770 mtx_unlock(&nlun->lun_lock); 4771 } 4772 4773 return (0); 4774} 4775 4776static void 4777ctl_create_lun(struct ctl_be_lun *be_lun) 4778{ 4779 struct ctl_softc *softc; 4780 4781 softc = control_softc; 4782 4783 /* 4784 * ctl_alloc_lun() should handle all potential failure cases. 4785 */ 4786 ctl_alloc_lun(softc, NULL, be_lun, softc->target); 4787} 4788 4789int 4790ctl_add_lun(struct ctl_be_lun *be_lun) 4791{ 4792 struct ctl_softc *softc = control_softc; 4793 4794 mtx_lock(&softc->ctl_lock); 4795 STAILQ_INSERT_TAIL(&softc->pending_lun_queue, be_lun, links); 4796 mtx_unlock(&softc->ctl_lock); 4797 wakeup(&softc->pending_lun_queue); 4798 4799 return (0); 4800} 4801 4802int 4803ctl_enable_lun(struct ctl_be_lun *be_lun) 4804{ 4805 struct ctl_softc *softc; 4806 struct ctl_port *port, *nport; 4807 struct ctl_lun *lun; 4808 int retval; 4809 4810 lun = (struct ctl_lun *)be_lun->ctl_lun; 4811 softc = lun->ctl_softc; 4812 4813 mtx_lock(&softc->ctl_lock); 4814 mtx_lock(&lun->lun_lock); 4815 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4816 /* 4817 * eh? Why did we get called if the LUN is already 4818 * enabled? 4819 */ 4820 mtx_unlock(&lun->lun_lock); 4821 mtx_unlock(&softc->ctl_lock); 4822 return (0); 4823 } 4824 lun->flags &= ~CTL_LUN_DISABLED; 4825 mtx_unlock(&lun->lun_lock); 4826 4827 for (port = STAILQ_FIRST(&softc->port_list); port != NULL; port = nport) { 4828 nport = STAILQ_NEXT(port, links); 4829 4830 /* 4831 * Drop the lock while we call the FETD's enable routine. 4832 * This can lead to a callback into CTL (at least in the 4833 * case of the internal initiator frontend. 4834 */ 4835 mtx_unlock(&softc->ctl_lock); 4836 retval = port->lun_enable(port->targ_lun_arg, lun->target,lun->lun); 4837 mtx_lock(&softc->ctl_lock); 4838 if (retval != 0) { 4839 printf("%s: FETD %s port %d returned error " 4840 "%d for lun_enable on target %ju lun %jd\n", 4841 __func__, port->port_name, port->targ_port, retval, 4842 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4843 } 4844#if 0 4845 else { 4846 /* NOTE: TODO: why does lun enable affect port status? */ 4847 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4848 } 4849#endif 4850 } 4851 4852 mtx_unlock(&softc->ctl_lock); 4853 4854 return (0); 4855} 4856 4857int 4858ctl_disable_lun(struct ctl_be_lun *be_lun) 4859{ 4860 struct ctl_softc *softc; 4861 struct ctl_port *port; 4862 struct ctl_lun *lun; 4863 int retval; 4864 4865 lun = (struct ctl_lun *)be_lun->ctl_lun; 4866 softc = lun->ctl_softc; 4867 4868 mtx_lock(&softc->ctl_lock); 4869 mtx_lock(&lun->lun_lock); 4870 if (lun->flags & CTL_LUN_DISABLED) { 4871 mtx_unlock(&lun->lun_lock); 4872 mtx_unlock(&softc->ctl_lock); 4873 return (0); 4874 } 4875 lun->flags |= CTL_LUN_DISABLED; 4876 mtx_unlock(&lun->lun_lock); 4877 4878 STAILQ_FOREACH(port, &softc->port_list, links) { 4879 mtx_unlock(&softc->ctl_lock); 4880 /* 4881 * Drop the lock before we call the frontend's disable 4882 * routine, to avoid lock order reversals. 4883 * 4884 * XXX KDM what happens if the frontend list changes while 4885 * we're traversing it? It's unlikely, but should be handled. 4886 */ 4887 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4888 lun->lun); 4889 mtx_lock(&softc->ctl_lock); 4890 if (retval != 0) { 4891 printf("ctl_alloc_lun: FETD %s port %d returned error " 4892 "%d for lun_disable on target %ju lun %jd\n", 4893 port->port_name, port->targ_port, retval, 4894 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4895 } 4896 } 4897 4898 mtx_unlock(&softc->ctl_lock); 4899 4900 return (0); 4901} 4902 4903int 4904ctl_start_lun(struct ctl_be_lun *be_lun) 4905{ 4906 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4907 4908 mtx_lock(&lun->lun_lock); 4909 lun->flags &= ~CTL_LUN_STOPPED; 4910 mtx_unlock(&lun->lun_lock); 4911 return (0); 4912} 4913 4914int 4915ctl_stop_lun(struct ctl_be_lun *be_lun) 4916{ 4917 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4918 4919 mtx_lock(&lun->lun_lock); 4920 lun->flags |= CTL_LUN_STOPPED; 4921 mtx_unlock(&lun->lun_lock); 4922 return (0); 4923} 4924 4925int 4926ctl_lun_offline(struct ctl_be_lun *be_lun) 4927{ 4928 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4929 4930 mtx_lock(&lun->lun_lock); 4931 lun->flags |= CTL_LUN_OFFLINE; 4932 mtx_unlock(&lun->lun_lock); 4933 return (0); 4934} 4935 4936int 4937ctl_lun_online(struct ctl_be_lun *be_lun) 4938{ 4939 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4940 4941 mtx_lock(&lun->lun_lock); 4942 lun->flags &= ~CTL_LUN_OFFLINE; 4943 mtx_unlock(&lun->lun_lock); 4944 return (0); 4945} 4946 4947int 4948ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4949{ 4950 struct ctl_softc *softc; 4951 struct ctl_lun *lun; 4952 4953 lun = (struct ctl_lun *)be_lun->ctl_lun; 4954 softc = lun->ctl_softc; 4955 4956 mtx_lock(&lun->lun_lock); 4957 4958 /* 4959 * The LUN needs to be disabled before it can be marked invalid. 4960 */ 4961 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4962 mtx_unlock(&lun->lun_lock); 4963 return (-1); 4964 } 4965 /* 4966 * Mark the LUN invalid. 4967 */ 4968 lun->flags |= CTL_LUN_INVALID; 4969 4970 /* 4971 * If there is nothing in the OOA queue, go ahead and free the LUN. 4972 * If we have something in the OOA queue, we'll free it when the 4973 * last I/O completes. 4974 */ 4975 if (TAILQ_EMPTY(&lun->ooa_queue)) { 4976 mtx_unlock(&lun->lun_lock); 4977 mtx_lock(&softc->ctl_lock); 4978 ctl_free_lun(lun); 4979 mtx_unlock(&softc->ctl_lock); 4980 } else 4981 mtx_unlock(&lun->lun_lock); 4982 4983 return (0); 4984} 4985 4986int 4987ctl_lun_inoperable(struct ctl_be_lun *be_lun) 4988{ 4989 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4990 4991 mtx_lock(&lun->lun_lock); 4992 lun->flags |= CTL_LUN_INOPERABLE; 4993 mtx_unlock(&lun->lun_lock); 4994 return (0); 4995} 4996 4997int 4998ctl_lun_operable(struct ctl_be_lun *be_lun) 4999{ 5000 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 5001 5002 mtx_lock(&lun->lun_lock); 5003 lun->flags &= ~CTL_LUN_INOPERABLE; 5004 mtx_unlock(&lun->lun_lock); 5005 return (0); 5006} 5007 5008void 5009ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 5010{ 5011 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 5012 5013 mtx_lock(&lun->lun_lock); 5014 ctl_est_ua_all(lun, -1, CTL_UA_CAPACITY_CHANGED); 5015 mtx_unlock(&lun->lun_lock); 5016} 5017 5018/* 5019 * Backend "memory move is complete" callback for requests that never 5020 * make it down to say RAIDCore's configuration code. 5021 */ 5022int 5023ctl_config_move_done(union ctl_io *io) 5024{ 5025 int retval; 5026 5027 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 5028 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI, 5029 ("Config I/O type isn't CTL_IO_SCSI (%d)!", io->io_hdr.io_type)); 5030 5031 if ((io->io_hdr.port_status != 0) && 5032 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5033 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5034 /* 5035 * For hardware error sense keys, the sense key 5036 * specific value is defined to be a retry count, 5037 * but we use it to pass back an internal FETD 5038 * error code. XXX KDM Hopefully the FETD is only 5039 * using 16 bits for an error code, since that's 5040 * all the space we have in the sks field. 5041 */ 5042 ctl_set_internal_failure(&io->scsiio, 5043 /*sks_valid*/ 1, 5044 /*retry_count*/ 5045 io->io_hdr.port_status); 5046 } 5047 5048 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) || 5049 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5050 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) || 5051 ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5052 /* 5053 * XXX KDM just assuming a single pointer here, and not a 5054 * S/G list. If we start using S/G lists for config data, 5055 * we'll need to know how to clean them up here as well. 5056 */ 5057 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5058 free(io->scsiio.kern_data_ptr, M_CTL); 5059 ctl_done(io); 5060 retval = CTL_RETVAL_COMPLETE; 5061 } else { 5062 /* 5063 * XXX KDM now we need to continue data movement. Some 5064 * options: 5065 * - call ctl_scsiio() again? We don't do this for data 5066 * writes, because for those at least we know ahead of 5067 * time where the write will go and how long it is. For 5068 * config writes, though, that information is largely 5069 * contained within the write itself, thus we need to 5070 * parse out the data again. 5071 * 5072 * - Call some other function once the data is in? 5073 */ 5074 if (ctl_debug & CTL_DEBUG_CDB_DATA) 5075 ctl_data_print(io); 5076 5077 /* 5078 * XXX KDM call ctl_scsiio() again for now, and check flag 5079 * bits to see whether we're allocated or not. 5080 */ 5081 retval = ctl_scsiio(&io->scsiio); 5082 } 5083 return (retval); 5084} 5085 5086/* 5087 * This gets called by a backend driver when it is done with a 5088 * data_submit method. 5089 */ 5090void 5091ctl_data_submit_done(union ctl_io *io) 5092{ 5093 /* 5094 * If the IO_CONT flag is set, we need to call the supplied 5095 * function to continue processing the I/O, instead of completing 5096 * the I/O just yet. 5097 * 5098 * If there is an error, though, we don't want to keep processing. 5099 * Instead, just send status back to the initiator. 5100 */ 5101 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5102 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5103 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5104 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5105 io->scsiio.io_cont(io); 5106 return; 5107 } 5108 ctl_done(io); 5109} 5110 5111/* 5112 * This gets called by a backend driver when it is done with a 5113 * configuration write. 5114 */ 5115void 5116ctl_config_write_done(union ctl_io *io) 5117{ 5118 uint8_t *buf; 5119 5120 /* 5121 * If the IO_CONT flag is set, we need to call the supplied 5122 * function to continue processing the I/O, instead of completing 5123 * the I/O just yet. 5124 * 5125 * If there is an error, though, we don't want to keep processing. 5126 * Instead, just send status back to the initiator. 5127 */ 5128 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5129 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5130 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5131 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5132 io->scsiio.io_cont(io); 5133 return; 5134 } 5135 /* 5136 * Since a configuration write can be done for commands that actually 5137 * have data allocated, like write buffer, and commands that have 5138 * no data, like start/stop unit, we need to check here. 5139 */ 5140 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5141 buf = io->scsiio.kern_data_ptr; 5142 else 5143 buf = NULL; 5144 ctl_done(io); 5145 if (buf) 5146 free(buf, M_CTL); 5147} 5148 5149void 5150ctl_config_read_done(union ctl_io *io) 5151{ 5152 uint8_t *buf; 5153 5154 /* 5155 * If there is some error -- we are done, skip data transfer. 5156 */ 5157 if ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0 || 5158 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5159 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) { 5160 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5161 buf = io->scsiio.kern_data_ptr; 5162 else 5163 buf = NULL; 5164 ctl_done(io); 5165 if (buf) 5166 free(buf, M_CTL); 5167 return; 5168 } 5169 5170 /* 5171 * If the IO_CONT flag is set, we need to call the supplied 5172 * function to continue processing the I/O, instead of completing 5173 * the I/O just yet. 5174 */ 5175 if (io->io_hdr.flags & CTL_FLAG_IO_CONT) { 5176 io->scsiio.io_cont(io); 5177 return; 5178 } 5179 5180 ctl_datamove(io); 5181} 5182 5183/* 5184 * SCSI release command. 5185 */ 5186int 5187ctl_scsi_release(struct ctl_scsiio *ctsio) 5188{ 5189 int length, longid, thirdparty_id, resv_id; 5190 struct ctl_lun *lun; 5191 uint32_t residx; 5192 5193 length = 0; 5194 resv_id = 0; 5195 5196 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5197 5198 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5199 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5200 5201 switch (ctsio->cdb[0]) { 5202 case RELEASE_10: { 5203 struct scsi_release_10 *cdb; 5204 5205 cdb = (struct scsi_release_10 *)ctsio->cdb; 5206 5207 if (cdb->byte2 & SR10_LONGID) 5208 longid = 1; 5209 else 5210 thirdparty_id = cdb->thirdparty_id; 5211 5212 resv_id = cdb->resv_id; 5213 length = scsi_2btoul(cdb->length); 5214 break; 5215 } 5216 } 5217 5218 5219 /* 5220 * XXX KDM right now, we only support LUN reservation. We don't 5221 * support 3rd party reservations, or extent reservations, which 5222 * might actually need the parameter list. If we've gotten this 5223 * far, we've got a LUN reservation. Anything else got kicked out 5224 * above. So, according to SPC, ignore the length. 5225 */ 5226 length = 0; 5227 5228 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5229 && (length > 0)) { 5230 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5231 ctsio->kern_data_len = length; 5232 ctsio->kern_total_len = length; 5233 ctsio->kern_data_resid = 0; 5234 ctsio->kern_rel_offset = 0; 5235 ctsio->kern_sg_entries = 0; 5236 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5237 ctsio->be_move_done = ctl_config_move_done; 5238 ctl_datamove((union ctl_io *)ctsio); 5239 5240 return (CTL_RETVAL_COMPLETE); 5241 } 5242 5243 if (length > 0) 5244 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5245 5246 mtx_lock(&lun->lun_lock); 5247 5248 /* 5249 * According to SPC, it is not an error for an intiator to attempt 5250 * to release a reservation on a LUN that isn't reserved, or that 5251 * is reserved by another initiator. The reservation can only be 5252 * released, though, by the initiator who made it or by one of 5253 * several reset type events. 5254 */ 5255 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5256 lun->flags &= ~CTL_LUN_RESERVED; 5257 5258 mtx_unlock(&lun->lun_lock); 5259 5260 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5261 free(ctsio->kern_data_ptr, M_CTL); 5262 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5263 } 5264 5265 ctl_set_success(ctsio); 5266 ctl_done((union ctl_io *)ctsio); 5267 return (CTL_RETVAL_COMPLETE); 5268} 5269 5270int 5271ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5272{ 5273 int extent, thirdparty, longid; 5274 int resv_id, length; 5275 uint64_t thirdparty_id; 5276 struct ctl_lun *lun; 5277 uint32_t residx; 5278 5279 extent = 0; 5280 thirdparty = 0; 5281 longid = 0; 5282 resv_id = 0; 5283 length = 0; 5284 thirdparty_id = 0; 5285 5286 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5287 5288 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5289 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5290 5291 switch (ctsio->cdb[0]) { 5292 case RESERVE_10: { 5293 struct scsi_reserve_10 *cdb; 5294 5295 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 5296 5297 if (cdb->byte2 & SR10_LONGID) 5298 longid = 1; 5299 else 5300 thirdparty_id = cdb->thirdparty_id; 5301 5302 resv_id = cdb->resv_id; 5303 length = scsi_2btoul(cdb->length); 5304 break; 5305 } 5306 } 5307 5308 /* 5309 * XXX KDM right now, we only support LUN reservation. We don't 5310 * support 3rd party reservations, or extent reservations, which 5311 * might actually need the parameter list. If we've gotten this 5312 * far, we've got a LUN reservation. Anything else got kicked out 5313 * above. So, according to SPC, ignore the length. 5314 */ 5315 length = 0; 5316 5317 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5318 && (length > 0)) { 5319 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5320 ctsio->kern_data_len = length; 5321 ctsio->kern_total_len = length; 5322 ctsio->kern_data_resid = 0; 5323 ctsio->kern_rel_offset = 0; 5324 ctsio->kern_sg_entries = 0; 5325 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5326 ctsio->be_move_done = ctl_config_move_done; 5327 ctl_datamove((union ctl_io *)ctsio); 5328 5329 return (CTL_RETVAL_COMPLETE); 5330 } 5331 5332 if (length > 0) 5333 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5334 5335 mtx_lock(&lun->lun_lock); 5336 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5337 ctl_set_reservation_conflict(ctsio); 5338 goto bailout; 5339 } 5340 5341 lun->flags |= CTL_LUN_RESERVED; 5342 lun->res_idx = residx; 5343 5344 ctl_set_success(ctsio); 5345 5346bailout: 5347 mtx_unlock(&lun->lun_lock); 5348 5349 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5350 free(ctsio->kern_data_ptr, M_CTL); 5351 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5352 } 5353 5354 ctl_done((union ctl_io *)ctsio); 5355 return (CTL_RETVAL_COMPLETE); 5356} 5357 5358int 5359ctl_start_stop(struct ctl_scsiio *ctsio) 5360{ 5361 struct scsi_start_stop_unit *cdb; 5362 struct ctl_lun *lun; 5363 int retval; 5364 5365 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5366 5367 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5368 retval = 0; 5369 5370 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5371 5372 /* 5373 * XXX KDM 5374 * We don't support the immediate bit on a stop unit. In order to 5375 * do that, we would need to code up a way to know that a stop is 5376 * pending, and hold off any new commands until it completes, one 5377 * way or another. Then we could accept or reject those commands 5378 * depending on its status. We would almost need to do the reverse 5379 * of what we do below for an immediate start -- return the copy of 5380 * the ctl_io to the FETD with status to send to the host (and to 5381 * free the copy!) and then free the original I/O once the stop 5382 * actually completes. That way, the OOA queue mechanism can work 5383 * to block commands that shouldn't proceed. Another alternative 5384 * would be to put the copy in the queue in place of the original, 5385 * and return the original back to the caller. That could be 5386 * slightly safer.. 5387 */ 5388 if ((cdb->byte2 & SSS_IMMED) 5389 && ((cdb->how & SSS_START) == 0)) { 5390 ctl_set_invalid_field(ctsio, 5391 /*sks_valid*/ 1, 5392 /*command*/ 1, 5393 /*field*/ 1, 5394 /*bit_valid*/ 1, 5395 /*bit*/ 0); 5396 ctl_done((union ctl_io *)ctsio); 5397 return (CTL_RETVAL_COMPLETE); 5398 } 5399 5400 if ((lun->flags & CTL_LUN_PR_RESERVED) 5401 && ((cdb->how & SSS_START)==0)) { 5402 uint32_t residx; 5403 5404 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5405 if (ctl_get_prkey(lun, residx) == 0 5406 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5407 5408 ctl_set_reservation_conflict(ctsio); 5409 ctl_done((union ctl_io *)ctsio); 5410 return (CTL_RETVAL_COMPLETE); 5411 } 5412 } 5413 5414 /* 5415 * If there is no backend on this device, we can't start or stop 5416 * it. In theory we shouldn't get any start/stop commands in the 5417 * first place at this level if the LUN doesn't have a backend. 5418 * That should get stopped by the command decode code. 5419 */ 5420 if (lun->backend == NULL) { 5421 ctl_set_invalid_opcode(ctsio); 5422 ctl_done((union ctl_io *)ctsio); 5423 return (CTL_RETVAL_COMPLETE); 5424 } 5425 5426 /* 5427 * XXX KDM Copan-specific offline behavior. 5428 * Figure out a reasonable way to port this? 5429 */ 5430#ifdef NEEDTOPORT 5431 mtx_lock(&lun->lun_lock); 5432 5433 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5434 && (lun->flags & CTL_LUN_OFFLINE)) { 5435 /* 5436 * If the LUN is offline, and the on/offline bit isn't set, 5437 * reject the start or stop. Otherwise, let it through. 5438 */ 5439 mtx_unlock(&lun->lun_lock); 5440 ctl_set_lun_not_ready(ctsio); 5441 ctl_done((union ctl_io *)ctsio); 5442 } else { 5443 mtx_unlock(&lun->lun_lock); 5444#endif /* NEEDTOPORT */ 5445 /* 5446 * This could be a start or a stop when we're online, 5447 * or a stop/offline or start/online. A start or stop when 5448 * we're offline is covered in the case above. 5449 */ 5450 /* 5451 * In the non-immediate case, we send the request to 5452 * the backend and return status to the user when 5453 * it is done. 5454 * 5455 * In the immediate case, we allocate a new ctl_io 5456 * to hold a copy of the request, and send that to 5457 * the backend. We then set good status on the 5458 * user's request and return it immediately. 5459 */ 5460 if (cdb->byte2 & SSS_IMMED) { 5461 union ctl_io *new_io; 5462 5463 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5464 ctl_copy_io((union ctl_io *)ctsio, new_io); 5465 retval = lun->backend->config_write(new_io); 5466 ctl_set_success(ctsio); 5467 ctl_done((union ctl_io *)ctsio); 5468 } else { 5469 retval = lun->backend->config_write( 5470 (union ctl_io *)ctsio); 5471 } 5472#ifdef NEEDTOPORT 5473 } 5474#endif 5475 return (retval); 5476} 5477 5478/* 5479 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5480 * we don't really do anything with the LBA and length fields if the user 5481 * passes them in. Instead we'll just flush out the cache for the entire 5482 * LUN. 5483 */ 5484int 5485ctl_sync_cache(struct ctl_scsiio *ctsio) 5486{ 5487 struct ctl_lun *lun; 5488 struct ctl_softc *softc; 5489 uint64_t starting_lba; 5490 uint32_t block_count; 5491 int retval; 5492 5493 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5494 5495 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5496 softc = lun->ctl_softc; 5497 retval = 0; 5498 5499 switch (ctsio->cdb[0]) { 5500 case SYNCHRONIZE_CACHE: { 5501 struct scsi_sync_cache *cdb; 5502 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5503 5504 starting_lba = scsi_4btoul(cdb->begin_lba); 5505 block_count = scsi_2btoul(cdb->lb_count); 5506 break; 5507 } 5508 case SYNCHRONIZE_CACHE_16: { 5509 struct scsi_sync_cache_16 *cdb; 5510 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5511 5512 starting_lba = scsi_8btou64(cdb->begin_lba); 5513 block_count = scsi_4btoul(cdb->lb_count); 5514 break; 5515 } 5516 default: 5517 ctl_set_invalid_opcode(ctsio); 5518 ctl_done((union ctl_io *)ctsio); 5519 goto bailout; 5520 break; /* NOTREACHED */ 5521 } 5522 5523 /* 5524 * We check the LBA and length, but don't do anything with them. 5525 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5526 * get flushed. This check will just help satisfy anyone who wants 5527 * to see an error for an out of range LBA. 5528 */ 5529 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5530 ctl_set_lba_out_of_range(ctsio); 5531 ctl_done((union ctl_io *)ctsio); 5532 goto bailout; 5533 } 5534 5535 /* 5536 * If this LUN has no backend, we can't flush the cache anyway. 5537 */ 5538 if (lun->backend == NULL) { 5539 ctl_set_invalid_opcode(ctsio); 5540 ctl_done((union ctl_io *)ctsio); 5541 goto bailout; 5542 } 5543 5544 /* 5545 * Check to see whether we're configured to send the SYNCHRONIZE 5546 * CACHE command directly to the back end. 5547 */ 5548 mtx_lock(&lun->lun_lock); 5549 if ((softc->flags & CTL_FLAG_REAL_SYNC) 5550 && (++(lun->sync_count) >= lun->sync_interval)) { 5551 lun->sync_count = 0; 5552 mtx_unlock(&lun->lun_lock); 5553 retval = lun->backend->config_write((union ctl_io *)ctsio); 5554 } else { 5555 mtx_unlock(&lun->lun_lock); 5556 ctl_set_success(ctsio); 5557 ctl_done((union ctl_io *)ctsio); 5558 } 5559 5560bailout: 5561 5562 return (retval); 5563} 5564 5565int 5566ctl_format(struct ctl_scsiio *ctsio) 5567{ 5568 struct scsi_format *cdb; 5569 struct ctl_lun *lun; 5570 int length, defect_list_len; 5571 5572 CTL_DEBUG_PRINT(("ctl_format\n")); 5573 5574 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5575 5576 cdb = (struct scsi_format *)ctsio->cdb; 5577 5578 length = 0; 5579 if (cdb->byte2 & SF_FMTDATA) { 5580 if (cdb->byte2 & SF_LONGLIST) 5581 length = sizeof(struct scsi_format_header_long); 5582 else 5583 length = sizeof(struct scsi_format_header_short); 5584 } 5585 5586 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5587 && (length > 0)) { 5588 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5589 ctsio->kern_data_len = length; 5590 ctsio->kern_total_len = length; 5591 ctsio->kern_data_resid = 0; 5592 ctsio->kern_rel_offset = 0; 5593 ctsio->kern_sg_entries = 0; 5594 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5595 ctsio->be_move_done = ctl_config_move_done; 5596 ctl_datamove((union ctl_io *)ctsio); 5597 5598 return (CTL_RETVAL_COMPLETE); 5599 } 5600 5601 defect_list_len = 0; 5602 5603 if (cdb->byte2 & SF_FMTDATA) { 5604 if (cdb->byte2 & SF_LONGLIST) { 5605 struct scsi_format_header_long *header; 5606 5607 header = (struct scsi_format_header_long *) 5608 ctsio->kern_data_ptr; 5609 5610 defect_list_len = scsi_4btoul(header->defect_list_len); 5611 if (defect_list_len != 0) { 5612 ctl_set_invalid_field(ctsio, 5613 /*sks_valid*/ 1, 5614 /*command*/ 0, 5615 /*field*/ 2, 5616 /*bit_valid*/ 0, 5617 /*bit*/ 0); 5618 goto bailout; 5619 } 5620 } else { 5621 struct scsi_format_header_short *header; 5622 5623 header = (struct scsi_format_header_short *) 5624 ctsio->kern_data_ptr; 5625 5626 defect_list_len = scsi_2btoul(header->defect_list_len); 5627 if (defect_list_len != 0) { 5628 ctl_set_invalid_field(ctsio, 5629 /*sks_valid*/ 1, 5630 /*command*/ 0, 5631 /*field*/ 2, 5632 /*bit_valid*/ 0, 5633 /*bit*/ 0); 5634 goto bailout; 5635 } 5636 } 5637 } 5638 5639 /* 5640 * The format command will clear out the "Medium format corrupted" 5641 * status if set by the configuration code. That status is really 5642 * just a way to notify the host that we have lost the media, and 5643 * get them to issue a command that will basically make them think 5644 * they're blowing away the media. 5645 */ 5646 mtx_lock(&lun->lun_lock); 5647 lun->flags &= ~CTL_LUN_INOPERABLE; 5648 mtx_unlock(&lun->lun_lock); 5649 5650 ctl_set_success(ctsio); 5651bailout: 5652 5653 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5654 free(ctsio->kern_data_ptr, M_CTL); 5655 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5656 } 5657 5658 ctl_done((union ctl_io *)ctsio); 5659 return (CTL_RETVAL_COMPLETE); 5660} 5661 5662int 5663ctl_read_buffer(struct ctl_scsiio *ctsio) 5664{ 5665 struct scsi_read_buffer *cdb; 5666 struct ctl_lun *lun; 5667 int buffer_offset, len; 5668 static uint8_t descr[4]; 5669 static uint8_t echo_descr[4] = { 0 }; 5670 5671 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5672 5673 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5674 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5675 5676 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA && 5677 (cdb->byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5678 (cdb->byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5679 ctl_set_invalid_field(ctsio, 5680 /*sks_valid*/ 1, 5681 /*command*/ 1, 5682 /*field*/ 1, 5683 /*bit_valid*/ 1, 5684 /*bit*/ 4); 5685 ctl_done((union ctl_io *)ctsio); 5686 return (CTL_RETVAL_COMPLETE); 5687 } 5688 5689 len = scsi_3btoul(cdb->length); 5690 buffer_offset = scsi_3btoul(cdb->offset); 5691 5692 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5693 ctl_set_invalid_field(ctsio, 5694 /*sks_valid*/ 1, 5695 /*command*/ 1, 5696 /*field*/ 6, 5697 /*bit_valid*/ 0, 5698 /*bit*/ 0); 5699 ctl_done((union ctl_io *)ctsio); 5700 return (CTL_RETVAL_COMPLETE); 5701 } 5702 5703 if ((cdb->byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5704 descr[0] = 0; 5705 scsi_ulto3b(CTL_WRITE_BUFFER_SIZE, &descr[1]); 5706 ctsio->kern_data_ptr = descr; 5707 len = min(len, sizeof(descr)); 5708 } else if ((cdb->byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5709 ctsio->kern_data_ptr = echo_descr; 5710 len = min(len, sizeof(echo_descr)); 5711 } else { 5712 if (lun->write_buffer == NULL) { 5713 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5714 M_CTL, M_WAITOK); 5715 } 5716 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5717 } 5718 ctsio->kern_data_len = len; 5719 ctsio->kern_total_len = len; 5720 ctsio->kern_data_resid = 0; 5721 ctsio->kern_rel_offset = 0; 5722 ctsio->kern_sg_entries = 0; 5723 ctl_set_success(ctsio); 5724 ctsio->be_move_done = ctl_config_move_done; 5725 ctl_datamove((union ctl_io *)ctsio); 5726 return (CTL_RETVAL_COMPLETE); 5727} 5728 5729int 5730ctl_write_buffer(struct ctl_scsiio *ctsio) 5731{ 5732 struct scsi_write_buffer *cdb; 5733 struct ctl_lun *lun; 5734 int buffer_offset, len; 5735 5736 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5737 5738 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5739 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5740 5741 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5742 ctl_set_invalid_field(ctsio, 5743 /*sks_valid*/ 1, 5744 /*command*/ 1, 5745 /*field*/ 1, 5746 /*bit_valid*/ 1, 5747 /*bit*/ 4); 5748 ctl_done((union ctl_io *)ctsio); 5749 return (CTL_RETVAL_COMPLETE); 5750 } 5751 5752 len = scsi_3btoul(cdb->length); 5753 buffer_offset = scsi_3btoul(cdb->offset); 5754 5755 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5756 ctl_set_invalid_field(ctsio, 5757 /*sks_valid*/ 1, 5758 /*command*/ 1, 5759 /*field*/ 6, 5760 /*bit_valid*/ 0, 5761 /*bit*/ 0); 5762 ctl_done((union ctl_io *)ctsio); 5763 return (CTL_RETVAL_COMPLETE); 5764 } 5765 5766 /* 5767 * If we've got a kernel request that hasn't been malloced yet, 5768 * malloc it and tell the caller the data buffer is here. 5769 */ 5770 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5771 if (lun->write_buffer == NULL) { 5772 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5773 M_CTL, M_WAITOK); 5774 } 5775 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5776 ctsio->kern_data_len = len; 5777 ctsio->kern_total_len = len; 5778 ctsio->kern_data_resid = 0; 5779 ctsio->kern_rel_offset = 0; 5780 ctsio->kern_sg_entries = 0; 5781 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5782 ctsio->be_move_done = ctl_config_move_done; 5783 ctl_datamove((union ctl_io *)ctsio); 5784 5785 return (CTL_RETVAL_COMPLETE); 5786 } 5787 5788 ctl_set_success(ctsio); 5789 ctl_done((union ctl_io *)ctsio); 5790 return (CTL_RETVAL_COMPLETE); 5791} 5792 5793int 5794ctl_write_same(struct ctl_scsiio *ctsio) 5795{ 5796 struct ctl_lun *lun; 5797 struct ctl_lba_len_flags *lbalen; 5798 uint64_t lba; 5799 uint32_t num_blocks; 5800 int len, retval; 5801 uint8_t byte2; 5802 5803 retval = CTL_RETVAL_COMPLETE; 5804 5805 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5806 5807 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5808 5809 switch (ctsio->cdb[0]) { 5810 case WRITE_SAME_10: { 5811 struct scsi_write_same_10 *cdb; 5812 5813 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5814 5815 lba = scsi_4btoul(cdb->addr); 5816 num_blocks = scsi_2btoul(cdb->length); 5817 byte2 = cdb->byte2; 5818 break; 5819 } 5820 case WRITE_SAME_16: { 5821 struct scsi_write_same_16 *cdb; 5822 5823 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5824 5825 lba = scsi_8btou64(cdb->addr); 5826 num_blocks = scsi_4btoul(cdb->length); 5827 byte2 = cdb->byte2; 5828 break; 5829 } 5830 default: 5831 /* 5832 * We got a command we don't support. This shouldn't 5833 * happen, commands should be filtered out above us. 5834 */ 5835 ctl_set_invalid_opcode(ctsio); 5836 ctl_done((union ctl_io *)ctsio); 5837 5838 return (CTL_RETVAL_COMPLETE); 5839 break; /* NOTREACHED */ 5840 } 5841 5842 /* NDOB and ANCHOR flags can be used only together with UNMAP */ 5843 if ((byte2 & SWS_UNMAP) == 0 && 5844 (byte2 & (SWS_NDOB | SWS_ANCHOR)) != 0) { 5845 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5846 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5847 ctl_done((union ctl_io *)ctsio); 5848 return (CTL_RETVAL_COMPLETE); 5849 } 5850 5851 /* 5852 * The first check is to make sure we're in bounds, the second 5853 * check is to catch wrap-around problems. If the lba + num blocks 5854 * is less than the lba, then we've wrapped around and the block 5855 * range is invalid anyway. 5856 */ 5857 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5858 || ((lba + num_blocks) < lba)) { 5859 ctl_set_lba_out_of_range(ctsio); 5860 ctl_done((union ctl_io *)ctsio); 5861 return (CTL_RETVAL_COMPLETE); 5862 } 5863 5864 /* Zero number of blocks means "to the last logical block" */ 5865 if (num_blocks == 0) { 5866 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5867 ctl_set_invalid_field(ctsio, 5868 /*sks_valid*/ 0, 5869 /*command*/ 1, 5870 /*field*/ 0, 5871 /*bit_valid*/ 0, 5872 /*bit*/ 0); 5873 ctl_done((union ctl_io *)ctsio); 5874 return (CTL_RETVAL_COMPLETE); 5875 } 5876 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5877 } 5878 5879 len = lun->be_lun->blocksize; 5880 5881 /* 5882 * If we've got a kernel request that hasn't been malloced yet, 5883 * malloc it and tell the caller the data buffer is here. 5884 */ 5885 if ((byte2 & SWS_NDOB) == 0 && 5886 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5887 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5888 ctsio->kern_data_len = len; 5889 ctsio->kern_total_len = len; 5890 ctsio->kern_data_resid = 0; 5891 ctsio->kern_rel_offset = 0; 5892 ctsio->kern_sg_entries = 0; 5893 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5894 ctsio->be_move_done = ctl_config_move_done; 5895 ctl_datamove((union ctl_io *)ctsio); 5896 5897 return (CTL_RETVAL_COMPLETE); 5898 } 5899 5900 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5901 lbalen->lba = lba; 5902 lbalen->len = num_blocks; 5903 lbalen->flags = byte2; 5904 retval = lun->backend->config_write((union ctl_io *)ctsio); 5905 5906 return (retval); 5907} 5908 5909int 5910ctl_unmap(struct ctl_scsiio *ctsio) 5911{ 5912 struct ctl_lun *lun; 5913 struct scsi_unmap *cdb; 5914 struct ctl_ptr_len_flags *ptrlen; 5915 struct scsi_unmap_header *hdr; 5916 struct scsi_unmap_desc *buf, *end, *endnz, *range; 5917 uint64_t lba; 5918 uint32_t num_blocks; 5919 int len, retval; 5920 uint8_t byte2; 5921 5922 retval = CTL_RETVAL_COMPLETE; 5923 5924 CTL_DEBUG_PRINT(("ctl_unmap\n")); 5925 5926 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5927 cdb = (struct scsi_unmap *)ctsio->cdb; 5928 5929 len = scsi_2btoul(cdb->length); 5930 byte2 = cdb->byte2; 5931 5932 /* 5933 * If we've got a kernel request that hasn't been malloced yet, 5934 * malloc it and tell the caller the data buffer is here. 5935 */ 5936 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5937 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5938 ctsio->kern_data_len = len; 5939 ctsio->kern_total_len = len; 5940 ctsio->kern_data_resid = 0; 5941 ctsio->kern_rel_offset = 0; 5942 ctsio->kern_sg_entries = 0; 5943 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5944 ctsio->be_move_done = ctl_config_move_done; 5945 ctl_datamove((union ctl_io *)ctsio); 5946 5947 return (CTL_RETVAL_COMPLETE); 5948 } 5949 5950 len = ctsio->kern_total_len - ctsio->kern_data_resid; 5951 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 5952 if (len < sizeof (*hdr) || 5953 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 5954 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 5955 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 5956 ctl_set_invalid_field(ctsio, 5957 /*sks_valid*/ 0, 5958 /*command*/ 0, 5959 /*field*/ 0, 5960 /*bit_valid*/ 0, 5961 /*bit*/ 0); 5962 goto done; 5963 } 5964 len = scsi_2btoul(hdr->desc_length); 5965 buf = (struct scsi_unmap_desc *)(hdr + 1); 5966 end = buf + len / sizeof(*buf); 5967 5968 endnz = buf; 5969 for (range = buf; range < end; range++) { 5970 lba = scsi_8btou64(range->lba); 5971 num_blocks = scsi_4btoul(range->length); 5972 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5973 || ((lba + num_blocks) < lba)) { 5974 ctl_set_lba_out_of_range(ctsio); 5975 ctl_done((union ctl_io *)ctsio); 5976 return (CTL_RETVAL_COMPLETE); 5977 } 5978 if (num_blocks != 0) 5979 endnz = range + 1; 5980 } 5981 5982 /* 5983 * Block backend can not handle zero last range. 5984 * Filter it out and return if there is nothing left. 5985 */ 5986 len = (uint8_t *)endnz - (uint8_t *)buf; 5987 if (len == 0) { 5988 ctl_set_success(ctsio); 5989 goto done; 5990 } 5991 5992 mtx_lock(&lun->lun_lock); 5993 ptrlen = (struct ctl_ptr_len_flags *) 5994 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5995 ptrlen->ptr = (void *)buf; 5996 ptrlen->len = len; 5997 ptrlen->flags = byte2; 5998 ctl_check_blocked(lun); 5999 mtx_unlock(&lun->lun_lock); 6000 6001 retval = lun->backend->config_write((union ctl_io *)ctsio); 6002 return (retval); 6003 6004done: 6005 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 6006 free(ctsio->kern_data_ptr, M_CTL); 6007 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 6008 } 6009 ctl_done((union ctl_io *)ctsio); 6010 return (CTL_RETVAL_COMPLETE); 6011} 6012 6013/* 6014 * Note that this function currently doesn't actually do anything inside 6015 * CTL to enforce things if the DQue bit is turned on. 6016 * 6017 * Also note that this function can't be used in the default case, because 6018 * the DQue bit isn't set in the changeable mask for the control mode page 6019 * anyway. This is just here as an example for how to implement a page 6020 * handler, and a placeholder in case we want to allow the user to turn 6021 * tagged queueing on and off. 6022 * 6023 * The D_SENSE bit handling is functional, however, and will turn 6024 * descriptor sense on and off for a given LUN. 6025 */ 6026int 6027ctl_control_page_handler(struct ctl_scsiio *ctsio, 6028 struct ctl_page_index *page_index, uint8_t *page_ptr) 6029{ 6030 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 6031 struct ctl_lun *lun; 6032 int set_ua; 6033 uint32_t initidx; 6034 6035 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6036 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6037 set_ua = 0; 6038 6039 user_cp = (struct scsi_control_page *)page_ptr; 6040 current_cp = (struct scsi_control_page *) 6041 (page_index->page_data + (page_index->page_len * 6042 CTL_PAGE_CURRENT)); 6043 saved_cp = (struct scsi_control_page *) 6044 (page_index->page_data + (page_index->page_len * 6045 CTL_PAGE_SAVED)); 6046 6047 mtx_lock(&lun->lun_lock); 6048 if (((current_cp->rlec & SCP_DSENSE) == 0) 6049 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 6050 /* 6051 * Descriptor sense is currently turned off and the user 6052 * wants to turn it on. 6053 */ 6054 current_cp->rlec |= SCP_DSENSE; 6055 saved_cp->rlec |= SCP_DSENSE; 6056 lun->flags |= CTL_LUN_SENSE_DESC; 6057 set_ua = 1; 6058 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 6059 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 6060 /* 6061 * Descriptor sense is currently turned on, and the user 6062 * wants to turn it off. 6063 */ 6064 current_cp->rlec &= ~SCP_DSENSE; 6065 saved_cp->rlec &= ~SCP_DSENSE; 6066 lun->flags &= ~CTL_LUN_SENSE_DESC; 6067 set_ua = 1; 6068 } 6069 if ((current_cp->queue_flags & SCP_QUEUE_ALG_MASK) != 6070 (user_cp->queue_flags & SCP_QUEUE_ALG_MASK)) { 6071 current_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6072 current_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6073 saved_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6074 saved_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6075 set_ua = 1; 6076 } 6077 if ((current_cp->eca_and_aen & SCP_SWP) != 6078 (user_cp->eca_and_aen & SCP_SWP)) { 6079 current_cp->eca_and_aen &= ~SCP_SWP; 6080 current_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6081 saved_cp->eca_and_aen &= ~SCP_SWP; 6082 saved_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6083 set_ua = 1; 6084 } 6085 if (set_ua != 0) 6086 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 6087 mtx_unlock(&lun->lun_lock); 6088 6089 return (0); 6090} 6091 6092int 6093ctl_caching_sp_handler(struct ctl_scsiio *ctsio, 6094 struct ctl_page_index *page_index, uint8_t *page_ptr) 6095{ 6096 struct scsi_caching_page *current_cp, *saved_cp, *user_cp; 6097 struct ctl_lun *lun; 6098 int set_ua; 6099 uint32_t initidx; 6100 6101 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6102 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6103 set_ua = 0; 6104 6105 user_cp = (struct scsi_caching_page *)page_ptr; 6106 current_cp = (struct scsi_caching_page *) 6107 (page_index->page_data + (page_index->page_len * 6108 CTL_PAGE_CURRENT)); 6109 saved_cp = (struct scsi_caching_page *) 6110 (page_index->page_data + (page_index->page_len * 6111 CTL_PAGE_SAVED)); 6112 6113 mtx_lock(&lun->lun_lock); 6114 if ((current_cp->flags1 & (SCP_WCE | SCP_RCD)) != 6115 (user_cp->flags1 & (SCP_WCE | SCP_RCD))) { 6116 current_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6117 current_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6118 saved_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6119 saved_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6120 set_ua = 1; 6121 } 6122 if (set_ua != 0) 6123 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 6124 mtx_unlock(&lun->lun_lock); 6125 6126 return (0); 6127} 6128 6129int 6130ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 6131 struct ctl_page_index *page_index, 6132 uint8_t *page_ptr) 6133{ 6134 uint8_t *c; 6135 int i; 6136 6137 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 6138 ctl_time_io_secs = 6139 (c[0] << 8) | 6140 (c[1] << 0) | 6141 0; 6142 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 6143 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 6144 printf("page data:"); 6145 for (i=0; i<8; i++) 6146 printf(" %.2x",page_ptr[i]); 6147 printf("\n"); 6148 return (0); 6149} 6150 6151int 6152ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 6153 struct ctl_page_index *page_index, 6154 int pc) 6155{ 6156 struct copan_debugconf_subpage *page; 6157 6158 page = (struct copan_debugconf_subpage *)page_index->page_data + 6159 (page_index->page_len * pc); 6160 6161 switch (pc) { 6162 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6163 case SMS_PAGE_CTRL_DEFAULT >> 6: 6164 case SMS_PAGE_CTRL_SAVED >> 6: 6165 /* 6166 * We don't update the changable or default bits for this page. 6167 */ 6168 break; 6169 case SMS_PAGE_CTRL_CURRENT >> 6: 6170 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 6171 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 6172 break; 6173 default: 6174#ifdef NEEDTOPORT 6175 EPRINT(0, "Invalid PC %d!!", pc); 6176#endif /* NEEDTOPORT */ 6177 break; 6178 } 6179 return (0); 6180} 6181 6182 6183static int 6184ctl_do_mode_select(union ctl_io *io) 6185{ 6186 struct scsi_mode_page_header *page_header; 6187 struct ctl_page_index *page_index; 6188 struct ctl_scsiio *ctsio; 6189 int control_dev, page_len; 6190 int page_len_offset, page_len_size; 6191 union ctl_modepage_info *modepage_info; 6192 struct ctl_lun *lun; 6193 int *len_left, *len_used; 6194 int retval, i; 6195 6196 ctsio = &io->scsiio; 6197 page_index = NULL; 6198 page_len = 0; 6199 retval = CTL_RETVAL_COMPLETE; 6200 6201 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6202 6203 if (lun->be_lun->lun_type != T_DIRECT) 6204 control_dev = 1; 6205 else 6206 control_dev = 0; 6207 6208 modepage_info = (union ctl_modepage_info *) 6209 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6210 len_left = &modepage_info->header.len_left; 6211 len_used = &modepage_info->header.len_used; 6212 6213do_next_page: 6214 6215 page_header = (struct scsi_mode_page_header *) 6216 (ctsio->kern_data_ptr + *len_used); 6217 6218 if (*len_left == 0) { 6219 free(ctsio->kern_data_ptr, M_CTL); 6220 ctl_set_success(ctsio); 6221 ctl_done((union ctl_io *)ctsio); 6222 return (CTL_RETVAL_COMPLETE); 6223 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6224 6225 free(ctsio->kern_data_ptr, M_CTL); 6226 ctl_set_param_len_error(ctsio); 6227 ctl_done((union ctl_io *)ctsio); 6228 return (CTL_RETVAL_COMPLETE); 6229 6230 } else if ((page_header->page_code & SMPH_SPF) 6231 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6232 6233 free(ctsio->kern_data_ptr, M_CTL); 6234 ctl_set_param_len_error(ctsio); 6235 ctl_done((union ctl_io *)ctsio); 6236 return (CTL_RETVAL_COMPLETE); 6237 } 6238 6239 6240 /* 6241 * XXX KDM should we do something with the block descriptor? 6242 */ 6243 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6244 6245 if ((control_dev != 0) 6246 && (lun->mode_pages.index[i].page_flags & 6247 CTL_PAGE_FLAG_DISK_ONLY)) 6248 continue; 6249 6250 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 6251 (page_header->page_code & SMPH_PC_MASK)) 6252 continue; 6253 6254 /* 6255 * If neither page has a subpage code, then we've got a 6256 * match. 6257 */ 6258 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 6259 && ((page_header->page_code & SMPH_SPF) == 0)) { 6260 page_index = &lun->mode_pages.index[i]; 6261 page_len = page_header->page_length; 6262 break; 6263 } 6264 6265 /* 6266 * If both pages have subpages, then the subpage numbers 6267 * have to match. 6268 */ 6269 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 6270 && (page_header->page_code & SMPH_SPF)) { 6271 struct scsi_mode_page_header_sp *sph; 6272 6273 sph = (struct scsi_mode_page_header_sp *)page_header; 6274 6275 if (lun->mode_pages.index[i].subpage == 6276 sph->subpage) { 6277 page_index = &lun->mode_pages.index[i]; 6278 page_len = scsi_2btoul(sph->page_length); 6279 break; 6280 } 6281 } 6282 } 6283 6284 /* 6285 * If we couldn't find the page, or if we don't have a mode select 6286 * handler for it, send back an error to the user. 6287 */ 6288 if ((page_index == NULL) 6289 || (page_index->select_handler == NULL)) { 6290 ctl_set_invalid_field(ctsio, 6291 /*sks_valid*/ 1, 6292 /*command*/ 0, 6293 /*field*/ *len_used, 6294 /*bit_valid*/ 0, 6295 /*bit*/ 0); 6296 free(ctsio->kern_data_ptr, M_CTL); 6297 ctl_done((union ctl_io *)ctsio); 6298 return (CTL_RETVAL_COMPLETE); 6299 } 6300 6301 if (page_index->page_code & SMPH_SPF) { 6302 page_len_offset = 2; 6303 page_len_size = 2; 6304 } else { 6305 page_len_size = 1; 6306 page_len_offset = 1; 6307 } 6308 6309 /* 6310 * If the length the initiator gives us isn't the one we specify in 6311 * the mode page header, or if they didn't specify enough data in 6312 * the CDB to avoid truncating this page, kick out the request. 6313 */ 6314 if ((page_len != (page_index->page_len - page_len_offset - 6315 page_len_size)) 6316 || (*len_left < page_index->page_len)) { 6317 6318 6319 ctl_set_invalid_field(ctsio, 6320 /*sks_valid*/ 1, 6321 /*command*/ 0, 6322 /*field*/ *len_used + page_len_offset, 6323 /*bit_valid*/ 0, 6324 /*bit*/ 0); 6325 free(ctsio->kern_data_ptr, M_CTL); 6326 ctl_done((union ctl_io *)ctsio); 6327 return (CTL_RETVAL_COMPLETE); 6328 } 6329 6330 /* 6331 * Run through the mode page, checking to make sure that the bits 6332 * the user changed are actually legal for him to change. 6333 */ 6334 for (i = 0; i < page_index->page_len; i++) { 6335 uint8_t *user_byte, *change_mask, *current_byte; 6336 int bad_bit; 6337 int j; 6338 6339 user_byte = (uint8_t *)page_header + i; 6340 change_mask = page_index->page_data + 6341 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6342 current_byte = page_index->page_data + 6343 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6344 6345 /* 6346 * Check to see whether the user set any bits in this byte 6347 * that he is not allowed to set. 6348 */ 6349 if ((*user_byte & ~(*change_mask)) == 6350 (*current_byte & ~(*change_mask))) 6351 continue; 6352 6353 /* 6354 * Go through bit by bit to determine which one is illegal. 6355 */ 6356 bad_bit = 0; 6357 for (j = 7; j >= 0; j--) { 6358 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6359 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6360 bad_bit = i; 6361 break; 6362 } 6363 } 6364 ctl_set_invalid_field(ctsio, 6365 /*sks_valid*/ 1, 6366 /*command*/ 0, 6367 /*field*/ *len_used + i, 6368 /*bit_valid*/ 1, 6369 /*bit*/ bad_bit); 6370 free(ctsio->kern_data_ptr, M_CTL); 6371 ctl_done((union ctl_io *)ctsio); 6372 return (CTL_RETVAL_COMPLETE); 6373 } 6374 6375 /* 6376 * Decrement these before we call the page handler, since we may 6377 * end up getting called back one way or another before the handler 6378 * returns to this context. 6379 */ 6380 *len_left -= page_index->page_len; 6381 *len_used += page_index->page_len; 6382 6383 retval = page_index->select_handler(ctsio, page_index, 6384 (uint8_t *)page_header); 6385 6386 /* 6387 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6388 * wait until this queued command completes to finish processing 6389 * the mode page. If it returns anything other than 6390 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6391 * already set the sense information, freed the data pointer, and 6392 * completed the io for us. 6393 */ 6394 if (retval != CTL_RETVAL_COMPLETE) 6395 goto bailout_no_done; 6396 6397 /* 6398 * If the initiator sent us more than one page, parse the next one. 6399 */ 6400 if (*len_left > 0) 6401 goto do_next_page; 6402 6403 ctl_set_success(ctsio); 6404 free(ctsio->kern_data_ptr, M_CTL); 6405 ctl_done((union ctl_io *)ctsio); 6406 6407bailout_no_done: 6408 6409 return (CTL_RETVAL_COMPLETE); 6410 6411} 6412 6413int 6414ctl_mode_select(struct ctl_scsiio *ctsio) 6415{ 6416 int param_len, pf, sp; 6417 int header_size, bd_len; 6418 int len_left, len_used; 6419 struct ctl_page_index *page_index; 6420 struct ctl_lun *lun; 6421 int control_dev, page_len; 6422 union ctl_modepage_info *modepage_info; 6423 int retval; 6424 6425 pf = 0; 6426 sp = 0; 6427 page_len = 0; 6428 len_used = 0; 6429 len_left = 0; 6430 retval = 0; 6431 bd_len = 0; 6432 page_index = NULL; 6433 6434 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6435 6436 if (lun->be_lun->lun_type != T_DIRECT) 6437 control_dev = 1; 6438 else 6439 control_dev = 0; 6440 6441 switch (ctsio->cdb[0]) { 6442 case MODE_SELECT_6: { 6443 struct scsi_mode_select_6 *cdb; 6444 6445 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6446 6447 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6448 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6449 6450 param_len = cdb->length; 6451 header_size = sizeof(struct scsi_mode_header_6); 6452 break; 6453 } 6454 case MODE_SELECT_10: { 6455 struct scsi_mode_select_10 *cdb; 6456 6457 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6458 6459 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6460 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6461 6462 param_len = scsi_2btoul(cdb->length); 6463 header_size = sizeof(struct scsi_mode_header_10); 6464 break; 6465 } 6466 default: 6467 ctl_set_invalid_opcode(ctsio); 6468 ctl_done((union ctl_io *)ctsio); 6469 return (CTL_RETVAL_COMPLETE); 6470 break; /* NOTREACHED */ 6471 } 6472 6473 /* 6474 * From SPC-3: 6475 * "A parameter list length of zero indicates that the Data-Out Buffer 6476 * shall be empty. This condition shall not be considered as an error." 6477 */ 6478 if (param_len == 0) { 6479 ctl_set_success(ctsio); 6480 ctl_done((union ctl_io *)ctsio); 6481 return (CTL_RETVAL_COMPLETE); 6482 } 6483 6484 /* 6485 * Since we'll hit this the first time through, prior to 6486 * allocation, we don't need to free a data buffer here. 6487 */ 6488 if (param_len < header_size) { 6489 ctl_set_param_len_error(ctsio); 6490 ctl_done((union ctl_io *)ctsio); 6491 return (CTL_RETVAL_COMPLETE); 6492 } 6493 6494 /* 6495 * Allocate the data buffer and grab the user's data. In theory, 6496 * we shouldn't have to sanity check the parameter list length here 6497 * because the maximum size is 64K. We should be able to malloc 6498 * that much without too many problems. 6499 */ 6500 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6501 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6502 ctsio->kern_data_len = param_len; 6503 ctsio->kern_total_len = param_len; 6504 ctsio->kern_data_resid = 0; 6505 ctsio->kern_rel_offset = 0; 6506 ctsio->kern_sg_entries = 0; 6507 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6508 ctsio->be_move_done = ctl_config_move_done; 6509 ctl_datamove((union ctl_io *)ctsio); 6510 6511 return (CTL_RETVAL_COMPLETE); 6512 } 6513 6514 switch (ctsio->cdb[0]) { 6515 case MODE_SELECT_6: { 6516 struct scsi_mode_header_6 *mh6; 6517 6518 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6519 bd_len = mh6->blk_desc_len; 6520 break; 6521 } 6522 case MODE_SELECT_10: { 6523 struct scsi_mode_header_10 *mh10; 6524 6525 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6526 bd_len = scsi_2btoul(mh10->blk_desc_len); 6527 break; 6528 } 6529 default: 6530 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6531 break; 6532 } 6533 6534 if (param_len < (header_size + bd_len)) { 6535 free(ctsio->kern_data_ptr, M_CTL); 6536 ctl_set_param_len_error(ctsio); 6537 ctl_done((union ctl_io *)ctsio); 6538 return (CTL_RETVAL_COMPLETE); 6539 } 6540 6541 /* 6542 * Set the IO_CONT flag, so that if this I/O gets passed to 6543 * ctl_config_write_done(), it'll get passed back to 6544 * ctl_do_mode_select() for further processing, or completion if 6545 * we're all done. 6546 */ 6547 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6548 ctsio->io_cont = ctl_do_mode_select; 6549 6550 modepage_info = (union ctl_modepage_info *) 6551 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6552 6553 memset(modepage_info, 0, sizeof(*modepage_info)); 6554 6555 len_left = param_len - header_size - bd_len; 6556 len_used = header_size + bd_len; 6557 6558 modepage_info->header.len_left = len_left; 6559 modepage_info->header.len_used = len_used; 6560 6561 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6562} 6563 6564int 6565ctl_mode_sense(struct ctl_scsiio *ctsio) 6566{ 6567 struct ctl_lun *lun; 6568 int pc, page_code, dbd, llba, subpage; 6569 int alloc_len, page_len, header_len, total_len; 6570 struct scsi_mode_block_descr *block_desc; 6571 struct ctl_page_index *page_index; 6572 int control_dev; 6573 6574 dbd = 0; 6575 llba = 0; 6576 block_desc = NULL; 6577 page_index = NULL; 6578 6579 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6580 6581 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6582 6583 if (lun->be_lun->lun_type != T_DIRECT) 6584 control_dev = 1; 6585 else 6586 control_dev = 0; 6587 6588 switch (ctsio->cdb[0]) { 6589 case MODE_SENSE_6: { 6590 struct scsi_mode_sense_6 *cdb; 6591 6592 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6593 6594 header_len = sizeof(struct scsi_mode_hdr_6); 6595 if (cdb->byte2 & SMS_DBD) 6596 dbd = 1; 6597 else 6598 header_len += sizeof(struct scsi_mode_block_descr); 6599 6600 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6601 page_code = cdb->page & SMS_PAGE_CODE; 6602 subpage = cdb->subpage; 6603 alloc_len = cdb->length; 6604 break; 6605 } 6606 case MODE_SENSE_10: { 6607 struct scsi_mode_sense_10 *cdb; 6608 6609 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6610 6611 header_len = sizeof(struct scsi_mode_hdr_10); 6612 6613 if (cdb->byte2 & SMS_DBD) 6614 dbd = 1; 6615 else 6616 header_len += sizeof(struct scsi_mode_block_descr); 6617 if (cdb->byte2 & SMS10_LLBAA) 6618 llba = 1; 6619 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6620 page_code = cdb->page & SMS_PAGE_CODE; 6621 subpage = cdb->subpage; 6622 alloc_len = scsi_2btoul(cdb->length); 6623 break; 6624 } 6625 default: 6626 ctl_set_invalid_opcode(ctsio); 6627 ctl_done((union ctl_io *)ctsio); 6628 return (CTL_RETVAL_COMPLETE); 6629 break; /* NOTREACHED */ 6630 } 6631 6632 /* 6633 * We have to make a first pass through to calculate the size of 6634 * the pages that match the user's query. Then we allocate enough 6635 * memory to hold it, and actually copy the data into the buffer. 6636 */ 6637 switch (page_code) { 6638 case SMS_ALL_PAGES_PAGE: { 6639 int i; 6640 6641 page_len = 0; 6642 6643 /* 6644 * At the moment, values other than 0 and 0xff here are 6645 * reserved according to SPC-3. 6646 */ 6647 if ((subpage != SMS_SUBPAGE_PAGE_0) 6648 && (subpage != SMS_SUBPAGE_ALL)) { 6649 ctl_set_invalid_field(ctsio, 6650 /*sks_valid*/ 1, 6651 /*command*/ 1, 6652 /*field*/ 3, 6653 /*bit_valid*/ 0, 6654 /*bit*/ 0); 6655 ctl_done((union ctl_io *)ctsio); 6656 return (CTL_RETVAL_COMPLETE); 6657 } 6658 6659 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6660 if ((control_dev != 0) 6661 && (lun->mode_pages.index[i].page_flags & 6662 CTL_PAGE_FLAG_DISK_ONLY)) 6663 continue; 6664 6665 /* 6666 * We don't use this subpage if the user didn't 6667 * request all subpages. 6668 */ 6669 if ((lun->mode_pages.index[i].subpage != 0) 6670 && (subpage == SMS_SUBPAGE_PAGE_0)) 6671 continue; 6672 6673#if 0 6674 printf("found page %#x len %d\n", 6675 lun->mode_pages.index[i].page_code & 6676 SMPH_PC_MASK, 6677 lun->mode_pages.index[i].page_len); 6678#endif 6679 page_len += lun->mode_pages.index[i].page_len; 6680 } 6681 break; 6682 } 6683 default: { 6684 int i; 6685 6686 page_len = 0; 6687 6688 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6689 /* Look for the right page code */ 6690 if ((lun->mode_pages.index[i].page_code & 6691 SMPH_PC_MASK) != page_code) 6692 continue; 6693 6694 /* Look for the right subpage or the subpage wildcard*/ 6695 if ((lun->mode_pages.index[i].subpage != subpage) 6696 && (subpage != SMS_SUBPAGE_ALL)) 6697 continue; 6698 6699 /* Make sure the page is supported for this dev type */ 6700 if ((control_dev != 0) 6701 && (lun->mode_pages.index[i].page_flags & 6702 CTL_PAGE_FLAG_DISK_ONLY)) 6703 continue; 6704 6705#if 0 6706 printf("found page %#x len %d\n", 6707 lun->mode_pages.index[i].page_code & 6708 SMPH_PC_MASK, 6709 lun->mode_pages.index[i].page_len); 6710#endif 6711 6712 page_len += lun->mode_pages.index[i].page_len; 6713 } 6714 6715 if (page_len == 0) { 6716 ctl_set_invalid_field(ctsio, 6717 /*sks_valid*/ 1, 6718 /*command*/ 1, 6719 /*field*/ 2, 6720 /*bit_valid*/ 1, 6721 /*bit*/ 5); 6722 ctl_done((union ctl_io *)ctsio); 6723 return (CTL_RETVAL_COMPLETE); 6724 } 6725 break; 6726 } 6727 } 6728 6729 total_len = header_len + page_len; 6730#if 0 6731 printf("header_len = %d, page_len = %d, total_len = %d\n", 6732 header_len, page_len, total_len); 6733#endif 6734 6735 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6736 ctsio->kern_sg_entries = 0; 6737 ctsio->kern_data_resid = 0; 6738 ctsio->kern_rel_offset = 0; 6739 if (total_len < alloc_len) { 6740 ctsio->residual = alloc_len - total_len; 6741 ctsio->kern_data_len = total_len; 6742 ctsio->kern_total_len = total_len; 6743 } else { 6744 ctsio->residual = 0; 6745 ctsio->kern_data_len = alloc_len; 6746 ctsio->kern_total_len = alloc_len; 6747 } 6748 6749 switch (ctsio->cdb[0]) { 6750 case MODE_SENSE_6: { 6751 struct scsi_mode_hdr_6 *header; 6752 6753 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6754 6755 header->datalen = MIN(total_len - 1, 254); 6756 if (control_dev == 0) { 6757 header->dev_specific = 0x10; /* DPOFUA */ 6758 if ((lun->flags & CTL_LUN_READONLY) || 6759 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6760 .eca_and_aen & SCP_SWP) != 0) 6761 header->dev_specific |= 0x80; /* WP */ 6762 } 6763 if (dbd) 6764 header->block_descr_len = 0; 6765 else 6766 header->block_descr_len = 6767 sizeof(struct scsi_mode_block_descr); 6768 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6769 break; 6770 } 6771 case MODE_SENSE_10: { 6772 struct scsi_mode_hdr_10 *header; 6773 int datalen; 6774 6775 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6776 6777 datalen = MIN(total_len - 2, 65533); 6778 scsi_ulto2b(datalen, header->datalen); 6779 if (control_dev == 0) { 6780 header->dev_specific = 0x10; /* DPOFUA */ 6781 if ((lun->flags & CTL_LUN_READONLY) || 6782 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6783 .eca_and_aen & SCP_SWP) != 0) 6784 header->dev_specific |= 0x80; /* WP */ 6785 } 6786 if (dbd) 6787 scsi_ulto2b(0, header->block_descr_len); 6788 else 6789 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 6790 header->block_descr_len); 6791 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6792 break; 6793 } 6794 default: 6795 panic("invalid CDB type %#x", ctsio->cdb[0]); 6796 break; /* NOTREACHED */ 6797 } 6798 6799 /* 6800 * If we've got a disk, use its blocksize in the block 6801 * descriptor. Otherwise, just set it to 0. 6802 */ 6803 if (dbd == 0) { 6804 if (control_dev == 0) 6805 scsi_ulto3b(lun->be_lun->blocksize, 6806 block_desc->block_len); 6807 else 6808 scsi_ulto3b(0, block_desc->block_len); 6809 } 6810 6811 switch (page_code) { 6812 case SMS_ALL_PAGES_PAGE: { 6813 int i, data_used; 6814 6815 data_used = header_len; 6816 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6817 struct ctl_page_index *page_index; 6818 6819 page_index = &lun->mode_pages.index[i]; 6820 6821 if ((control_dev != 0) 6822 && (page_index->page_flags & 6823 CTL_PAGE_FLAG_DISK_ONLY)) 6824 continue; 6825 6826 /* 6827 * We don't use this subpage if the user didn't 6828 * request all subpages. We already checked (above) 6829 * to make sure the user only specified a subpage 6830 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 6831 */ 6832 if ((page_index->subpage != 0) 6833 && (subpage == SMS_SUBPAGE_PAGE_0)) 6834 continue; 6835 6836 /* 6837 * Call the handler, if it exists, to update the 6838 * page to the latest values. 6839 */ 6840 if (page_index->sense_handler != NULL) 6841 page_index->sense_handler(ctsio, page_index,pc); 6842 6843 memcpy(ctsio->kern_data_ptr + data_used, 6844 page_index->page_data + 6845 (page_index->page_len * pc), 6846 page_index->page_len); 6847 data_used += page_index->page_len; 6848 } 6849 break; 6850 } 6851 default: { 6852 int i, data_used; 6853 6854 data_used = header_len; 6855 6856 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6857 struct ctl_page_index *page_index; 6858 6859 page_index = &lun->mode_pages.index[i]; 6860 6861 /* Look for the right page code */ 6862 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6863 continue; 6864 6865 /* Look for the right subpage or the subpage wildcard*/ 6866 if ((page_index->subpage != subpage) 6867 && (subpage != SMS_SUBPAGE_ALL)) 6868 continue; 6869 6870 /* Make sure the page is supported for this dev type */ 6871 if ((control_dev != 0) 6872 && (page_index->page_flags & 6873 CTL_PAGE_FLAG_DISK_ONLY)) 6874 continue; 6875 6876 /* 6877 * Call the handler, if it exists, to update the 6878 * page to the latest values. 6879 */ 6880 if (page_index->sense_handler != NULL) 6881 page_index->sense_handler(ctsio, page_index,pc); 6882 6883 memcpy(ctsio->kern_data_ptr + data_used, 6884 page_index->page_data + 6885 (page_index->page_len * pc), 6886 page_index->page_len); 6887 data_used += page_index->page_len; 6888 } 6889 break; 6890 } 6891 } 6892 6893 ctl_set_success(ctsio); 6894 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6895 ctsio->be_move_done = ctl_config_move_done; 6896 ctl_datamove((union ctl_io *)ctsio); 6897 return (CTL_RETVAL_COMPLETE); 6898} 6899 6900int 6901ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio, 6902 struct ctl_page_index *page_index, 6903 int pc) 6904{ 6905 struct ctl_lun *lun; 6906 struct scsi_log_param_header *phdr; 6907 uint8_t *data; 6908 uint64_t val; 6909 6910 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6911 data = page_index->page_data; 6912 6913 if (lun->backend->lun_attr != NULL && 6914 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksavail")) 6915 != UINT64_MAX) { 6916 phdr = (struct scsi_log_param_header *)data; 6917 scsi_ulto2b(0x0001, phdr->param_code); 6918 phdr->param_control = SLP_LBIN | SLP_LP; 6919 phdr->param_len = 8; 6920 data = (uint8_t *)(phdr + 1); 6921 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6922 data[4] = 0x02; /* per-pool */ 6923 data += phdr->param_len; 6924 } 6925 6926 if (lun->backend->lun_attr != NULL && 6927 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksused")) 6928 != UINT64_MAX) { 6929 phdr = (struct scsi_log_param_header *)data; 6930 scsi_ulto2b(0x0002, phdr->param_code); 6931 phdr->param_control = SLP_LBIN | SLP_LP; 6932 phdr->param_len = 8; 6933 data = (uint8_t *)(phdr + 1); 6934 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6935 data[4] = 0x01; /* per-LUN */ 6936 data += phdr->param_len; 6937 } 6938 6939 if (lun->backend->lun_attr != NULL && 6940 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksavail")) 6941 != UINT64_MAX) { 6942 phdr = (struct scsi_log_param_header *)data; 6943 scsi_ulto2b(0x00f1, phdr->param_code); 6944 phdr->param_control = SLP_LBIN | SLP_LP; 6945 phdr->param_len = 8; 6946 data = (uint8_t *)(phdr + 1); 6947 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6948 data[4] = 0x02; /* per-pool */ 6949 data += phdr->param_len; 6950 } 6951 6952 if (lun->backend->lun_attr != NULL && 6953 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksused")) 6954 != UINT64_MAX) { 6955 phdr = (struct scsi_log_param_header *)data; 6956 scsi_ulto2b(0x00f2, phdr->param_code); 6957 phdr->param_control = SLP_LBIN | SLP_LP; 6958 phdr->param_len = 8; 6959 data = (uint8_t *)(phdr + 1); 6960 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6961 data[4] = 0x02; /* per-pool */ 6962 data += phdr->param_len; 6963 } 6964 6965 page_index->page_len = data - page_index->page_data; 6966 return (0); 6967} 6968 6969int 6970ctl_log_sense(struct ctl_scsiio *ctsio) 6971{ 6972 struct ctl_lun *lun; 6973 int i, pc, page_code, subpage; 6974 int alloc_len, total_len; 6975 struct ctl_page_index *page_index; 6976 struct scsi_log_sense *cdb; 6977 struct scsi_log_header *header; 6978 6979 CTL_DEBUG_PRINT(("ctl_log_sense\n")); 6980 6981 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6982 cdb = (struct scsi_log_sense *)ctsio->cdb; 6983 pc = (cdb->page & SLS_PAGE_CTRL_MASK) >> 6; 6984 page_code = cdb->page & SLS_PAGE_CODE; 6985 subpage = cdb->subpage; 6986 alloc_len = scsi_2btoul(cdb->length); 6987 6988 page_index = NULL; 6989 for (i = 0; i < CTL_NUM_LOG_PAGES; i++) { 6990 page_index = &lun->log_pages.index[i]; 6991 6992 /* Look for the right page code */ 6993 if ((page_index->page_code & SL_PAGE_CODE) != page_code) 6994 continue; 6995 6996 /* Look for the right subpage or the subpage wildcard*/ 6997 if (page_index->subpage != subpage) 6998 continue; 6999 7000 break; 7001 } 7002 if (i >= CTL_NUM_LOG_PAGES) { 7003 ctl_set_invalid_field(ctsio, 7004 /*sks_valid*/ 1, 7005 /*command*/ 1, 7006 /*field*/ 2, 7007 /*bit_valid*/ 0, 7008 /*bit*/ 0); 7009 ctl_done((union ctl_io *)ctsio); 7010 return (CTL_RETVAL_COMPLETE); 7011 } 7012 7013 total_len = sizeof(struct scsi_log_header) + page_index->page_len; 7014 7015 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7016 ctsio->kern_sg_entries = 0; 7017 ctsio->kern_data_resid = 0; 7018 ctsio->kern_rel_offset = 0; 7019 if (total_len < alloc_len) { 7020 ctsio->residual = alloc_len - total_len; 7021 ctsio->kern_data_len = total_len; 7022 ctsio->kern_total_len = total_len; 7023 } else { 7024 ctsio->residual = 0; 7025 ctsio->kern_data_len = alloc_len; 7026 ctsio->kern_total_len = alloc_len; 7027 } 7028 7029 header = (struct scsi_log_header *)ctsio->kern_data_ptr; 7030 header->page = page_index->page_code; 7031 if (page_index->subpage) { 7032 header->page |= SL_SPF; 7033 header->subpage = page_index->subpage; 7034 } 7035 scsi_ulto2b(page_index->page_len, header->datalen); 7036 7037 /* 7038 * Call the handler, if it exists, to update the 7039 * page to the latest values. 7040 */ 7041 if (page_index->sense_handler != NULL) 7042 page_index->sense_handler(ctsio, page_index, pc); 7043 7044 memcpy(header + 1, page_index->page_data, page_index->page_len); 7045 7046 ctl_set_success(ctsio); 7047 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7048 ctsio->be_move_done = ctl_config_move_done; 7049 ctl_datamove((union ctl_io *)ctsio); 7050 return (CTL_RETVAL_COMPLETE); 7051} 7052 7053int 7054ctl_read_capacity(struct ctl_scsiio *ctsio) 7055{ 7056 struct scsi_read_capacity *cdb; 7057 struct scsi_read_capacity_data *data; 7058 struct ctl_lun *lun; 7059 uint32_t lba; 7060 7061 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 7062 7063 cdb = (struct scsi_read_capacity *)ctsio->cdb; 7064 7065 lba = scsi_4btoul(cdb->addr); 7066 if (((cdb->pmi & SRC_PMI) == 0) 7067 && (lba != 0)) { 7068 ctl_set_invalid_field(/*ctsio*/ ctsio, 7069 /*sks_valid*/ 1, 7070 /*command*/ 1, 7071 /*field*/ 2, 7072 /*bit_valid*/ 0, 7073 /*bit*/ 0); 7074 ctl_done((union ctl_io *)ctsio); 7075 return (CTL_RETVAL_COMPLETE); 7076 } 7077 7078 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7079 7080 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7081 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 7082 ctsio->residual = 0; 7083 ctsio->kern_data_len = sizeof(*data); 7084 ctsio->kern_total_len = sizeof(*data); 7085 ctsio->kern_data_resid = 0; 7086 ctsio->kern_rel_offset = 0; 7087 ctsio->kern_sg_entries = 0; 7088 7089 /* 7090 * If the maximum LBA is greater than 0xfffffffe, the user must 7091 * issue a SERVICE ACTION IN (16) command, with the read capacity 7092 * serivce action set. 7093 */ 7094 if (lun->be_lun->maxlba > 0xfffffffe) 7095 scsi_ulto4b(0xffffffff, data->addr); 7096 else 7097 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 7098 7099 /* 7100 * XXX KDM this may not be 512 bytes... 7101 */ 7102 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7103 7104 ctl_set_success(ctsio); 7105 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7106 ctsio->be_move_done = ctl_config_move_done; 7107 ctl_datamove((union ctl_io *)ctsio); 7108 return (CTL_RETVAL_COMPLETE); 7109} 7110 7111int 7112ctl_read_capacity_16(struct ctl_scsiio *ctsio) 7113{ 7114 struct scsi_read_capacity_16 *cdb; 7115 struct scsi_read_capacity_data_long *data; 7116 struct ctl_lun *lun; 7117 uint64_t lba; 7118 uint32_t alloc_len; 7119 7120 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 7121 7122 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 7123 7124 alloc_len = scsi_4btoul(cdb->alloc_len); 7125 lba = scsi_8btou64(cdb->addr); 7126 7127 if ((cdb->reladr & SRC16_PMI) 7128 && (lba != 0)) { 7129 ctl_set_invalid_field(/*ctsio*/ ctsio, 7130 /*sks_valid*/ 1, 7131 /*command*/ 1, 7132 /*field*/ 2, 7133 /*bit_valid*/ 0, 7134 /*bit*/ 0); 7135 ctl_done((union ctl_io *)ctsio); 7136 return (CTL_RETVAL_COMPLETE); 7137 } 7138 7139 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7140 7141 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7142 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 7143 7144 if (sizeof(*data) < alloc_len) { 7145 ctsio->residual = alloc_len - sizeof(*data); 7146 ctsio->kern_data_len = sizeof(*data); 7147 ctsio->kern_total_len = sizeof(*data); 7148 } else { 7149 ctsio->residual = 0; 7150 ctsio->kern_data_len = alloc_len; 7151 ctsio->kern_total_len = alloc_len; 7152 } 7153 ctsio->kern_data_resid = 0; 7154 ctsio->kern_rel_offset = 0; 7155 ctsio->kern_sg_entries = 0; 7156 7157 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7158 /* XXX KDM this may not be 512 bytes... */ 7159 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7160 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7161 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7162 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7163 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 7164 7165 ctl_set_success(ctsio); 7166 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7167 ctsio->be_move_done = ctl_config_move_done; 7168 ctl_datamove((union ctl_io *)ctsio); 7169 return (CTL_RETVAL_COMPLETE); 7170} 7171 7172int 7173ctl_get_lba_status(struct ctl_scsiio *ctsio) 7174{ 7175 struct scsi_get_lba_status *cdb; 7176 struct scsi_get_lba_status_data *data; 7177 struct ctl_lun *lun; 7178 struct ctl_lba_len_flags *lbalen; 7179 uint64_t lba; 7180 uint32_t alloc_len, total_len; 7181 int retval; 7182 7183 CTL_DEBUG_PRINT(("ctl_get_lba_status\n")); 7184 7185 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7186 cdb = (struct scsi_get_lba_status *)ctsio->cdb; 7187 lba = scsi_8btou64(cdb->addr); 7188 alloc_len = scsi_4btoul(cdb->alloc_len); 7189 7190 if (lba > lun->be_lun->maxlba) { 7191 ctl_set_lba_out_of_range(ctsio); 7192 ctl_done((union ctl_io *)ctsio); 7193 return (CTL_RETVAL_COMPLETE); 7194 } 7195 7196 total_len = sizeof(*data) + sizeof(data->descr[0]); 7197 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7198 data = (struct scsi_get_lba_status_data *)ctsio->kern_data_ptr; 7199 7200 if (total_len < alloc_len) { 7201 ctsio->residual = alloc_len - total_len; 7202 ctsio->kern_data_len = total_len; 7203 ctsio->kern_total_len = total_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 /* Fill dummy data in case backend can't tell anything. */ 7214 scsi_ulto4b(4 + sizeof(data->descr[0]), data->length); 7215 scsi_u64to8b(lba, data->descr[0].addr); 7216 scsi_ulto4b(MIN(UINT32_MAX, lun->be_lun->maxlba + 1 - lba), 7217 data->descr[0].length); 7218 data->descr[0].status = 0; /* Mapped or unknown. */ 7219 7220 ctl_set_success(ctsio); 7221 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7222 ctsio->be_move_done = ctl_config_move_done; 7223 7224 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 7225 lbalen->lba = lba; 7226 lbalen->len = total_len; 7227 lbalen->flags = 0; 7228 retval = lun->backend->config_read((union ctl_io *)ctsio); 7229 return (CTL_RETVAL_COMPLETE); 7230} 7231 7232int 7233ctl_read_defect(struct ctl_scsiio *ctsio) 7234{ 7235 struct scsi_read_defect_data_10 *ccb10; 7236 struct scsi_read_defect_data_12 *ccb12; 7237 struct scsi_read_defect_data_hdr_10 *data10; 7238 struct scsi_read_defect_data_hdr_12 *data12; 7239 uint32_t alloc_len, data_len; 7240 uint8_t format; 7241 7242 CTL_DEBUG_PRINT(("ctl_read_defect\n")); 7243 7244 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7245 ccb10 = (struct scsi_read_defect_data_10 *)&ctsio->cdb; 7246 format = ccb10->format; 7247 alloc_len = scsi_2btoul(ccb10->alloc_length); 7248 data_len = sizeof(*data10); 7249 } else { 7250 ccb12 = (struct scsi_read_defect_data_12 *)&ctsio->cdb; 7251 format = ccb12->format; 7252 alloc_len = scsi_4btoul(ccb12->alloc_length); 7253 data_len = sizeof(*data12); 7254 } 7255 if (alloc_len == 0) { 7256 ctl_set_success(ctsio); 7257 ctl_done((union ctl_io *)ctsio); 7258 return (CTL_RETVAL_COMPLETE); 7259 } 7260 7261 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 7262 if (data_len < alloc_len) { 7263 ctsio->residual = alloc_len - data_len; 7264 ctsio->kern_data_len = data_len; 7265 ctsio->kern_total_len = data_len; 7266 } else { 7267 ctsio->residual = 0; 7268 ctsio->kern_data_len = alloc_len; 7269 ctsio->kern_total_len = alloc_len; 7270 } 7271 ctsio->kern_data_resid = 0; 7272 ctsio->kern_rel_offset = 0; 7273 ctsio->kern_sg_entries = 0; 7274 7275 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7276 data10 = (struct scsi_read_defect_data_hdr_10 *) 7277 ctsio->kern_data_ptr; 7278 data10->format = format; 7279 scsi_ulto2b(0, data10->length); 7280 } else { 7281 data12 = (struct scsi_read_defect_data_hdr_12 *) 7282 ctsio->kern_data_ptr; 7283 data12->format = format; 7284 scsi_ulto2b(0, data12->generation); 7285 scsi_ulto4b(0, data12->length); 7286 } 7287 7288 ctl_set_success(ctsio); 7289 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7290 ctsio->be_move_done = ctl_config_move_done; 7291 ctl_datamove((union ctl_io *)ctsio); 7292 return (CTL_RETVAL_COMPLETE); 7293} 7294 7295int 7296ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7297{ 7298 struct scsi_maintenance_in *cdb; 7299 int retval; 7300 int alloc_len, ext, total_len = 0, g, p, pc, pg, gs, os; 7301 int num_target_port_groups, num_target_ports; 7302 struct ctl_lun *lun; 7303 struct ctl_softc *softc; 7304 struct ctl_port *port; 7305 struct scsi_target_group_data *rtg_ptr; 7306 struct scsi_target_group_data_extended *rtg_ext_ptr; 7307 struct scsi_target_port_group_descriptor *tpg_desc; 7308 7309 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7310 7311 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7312 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7313 softc = lun->ctl_softc; 7314 7315 retval = CTL_RETVAL_COMPLETE; 7316 7317 switch (cdb->byte2 & STG_PDF_MASK) { 7318 case STG_PDF_LENGTH: 7319 ext = 0; 7320 break; 7321 case STG_PDF_EXTENDED: 7322 ext = 1; 7323 break; 7324 default: 7325 ctl_set_invalid_field(/*ctsio*/ ctsio, 7326 /*sks_valid*/ 1, 7327 /*command*/ 1, 7328 /*field*/ 2, 7329 /*bit_valid*/ 1, 7330 /*bit*/ 5); 7331 ctl_done((union ctl_io *)ctsio); 7332 return(retval); 7333 } 7334 7335 if (softc->is_single) 7336 num_target_port_groups = 1; 7337 else 7338 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7339 num_target_ports = 0; 7340 mtx_lock(&softc->ctl_lock); 7341 STAILQ_FOREACH(port, &softc->port_list, links) { 7342 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7343 continue; 7344 if (ctl_map_lun_back(softc, port->targ_port, lun->lun) >= 7345 CTL_MAX_LUNS) 7346 continue; 7347 num_target_ports++; 7348 } 7349 mtx_unlock(&softc->ctl_lock); 7350 7351 if (ext) 7352 total_len = sizeof(struct scsi_target_group_data_extended); 7353 else 7354 total_len = sizeof(struct scsi_target_group_data); 7355 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7356 num_target_port_groups + 7357 sizeof(struct scsi_target_port_descriptor) * 7358 num_target_ports * num_target_port_groups; 7359 7360 alloc_len = scsi_4btoul(cdb->length); 7361 7362 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7363 7364 ctsio->kern_sg_entries = 0; 7365 7366 if (total_len < alloc_len) { 7367 ctsio->residual = alloc_len - total_len; 7368 ctsio->kern_data_len = total_len; 7369 ctsio->kern_total_len = total_len; 7370 } else { 7371 ctsio->residual = 0; 7372 ctsio->kern_data_len = alloc_len; 7373 ctsio->kern_total_len = alloc_len; 7374 } 7375 ctsio->kern_data_resid = 0; 7376 ctsio->kern_rel_offset = 0; 7377 7378 if (ext) { 7379 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7380 ctsio->kern_data_ptr; 7381 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7382 rtg_ext_ptr->format_type = 0x10; 7383 rtg_ext_ptr->implicit_transition_time = 0; 7384 tpg_desc = &rtg_ext_ptr->groups[0]; 7385 } else { 7386 rtg_ptr = (struct scsi_target_group_data *) 7387 ctsio->kern_data_ptr; 7388 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7389 tpg_desc = &rtg_ptr->groups[0]; 7390 } 7391 7392 mtx_lock(&softc->ctl_lock); 7393 pg = softc->port_offset / CTL_MAX_PORTS; 7394 if (softc->flags & CTL_FLAG_ACTIVE_SHELF) { 7395 if (softc->ha_mode == CTL_HA_MODE_ACT_STBY) { 7396 gs = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7397 os = TPG_ASYMMETRIC_ACCESS_STANDBY; 7398 } else if (lun->flags & CTL_LUN_PRIMARY_SC) { 7399 gs = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7400 os = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7401 } else { 7402 gs = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7403 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7404 } 7405 } else { 7406 gs = TPG_ASYMMETRIC_ACCESS_STANDBY; 7407 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7408 } 7409 for (g = 0; g < num_target_port_groups; g++) { 7410 tpg_desc->pref_state = (g == pg) ? gs : os; 7411 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP; 7412 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7413 tpg_desc->status = TPG_IMPLICIT; 7414 pc = 0; 7415 STAILQ_FOREACH(port, &softc->port_list, links) { 7416 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7417 continue; 7418 if (ctl_map_lun_back(softc, port->targ_port, lun->lun) 7419 >= CTL_MAX_LUNS) 7420 continue; 7421 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 7422 scsi_ulto2b(p, tpg_desc->descriptors[pc]. 7423 relative_target_port_identifier); 7424 pc++; 7425 } 7426 tpg_desc->target_port_count = pc; 7427 tpg_desc = (struct scsi_target_port_group_descriptor *) 7428 &tpg_desc->descriptors[pc]; 7429 } 7430 mtx_unlock(&softc->ctl_lock); 7431 7432 ctl_set_success(ctsio); 7433 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7434 ctsio->be_move_done = ctl_config_move_done; 7435 ctl_datamove((union ctl_io *)ctsio); 7436 return(retval); 7437} 7438 7439int 7440ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7441{ 7442 struct ctl_lun *lun; 7443 struct scsi_report_supported_opcodes *cdb; 7444 const struct ctl_cmd_entry *entry, *sentry; 7445 struct scsi_report_supported_opcodes_all *all; 7446 struct scsi_report_supported_opcodes_descr *descr; 7447 struct scsi_report_supported_opcodes_one *one; 7448 int retval; 7449 int alloc_len, total_len; 7450 int opcode, service_action, i, j, num; 7451 7452 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7453 7454 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7455 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7456 7457 retval = CTL_RETVAL_COMPLETE; 7458 7459 opcode = cdb->requested_opcode; 7460 service_action = scsi_2btoul(cdb->requested_service_action); 7461 switch (cdb->options & RSO_OPTIONS_MASK) { 7462 case RSO_OPTIONS_ALL: 7463 num = 0; 7464 for (i = 0; i < 256; i++) { 7465 entry = &ctl_cmd_table[i]; 7466 if (entry->flags & CTL_CMD_FLAG_SA5) { 7467 for (j = 0; j < 32; j++) { 7468 sentry = &((const struct ctl_cmd_entry *) 7469 entry->execute)[j]; 7470 if (ctl_cmd_applicable( 7471 lun->be_lun->lun_type, sentry)) 7472 num++; 7473 } 7474 } else { 7475 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7476 entry)) 7477 num++; 7478 } 7479 } 7480 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7481 num * sizeof(struct scsi_report_supported_opcodes_descr); 7482 break; 7483 case RSO_OPTIONS_OC: 7484 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7485 ctl_set_invalid_field(/*ctsio*/ ctsio, 7486 /*sks_valid*/ 1, 7487 /*command*/ 1, 7488 /*field*/ 2, 7489 /*bit_valid*/ 1, 7490 /*bit*/ 2); 7491 ctl_done((union ctl_io *)ctsio); 7492 return (CTL_RETVAL_COMPLETE); 7493 } 7494 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7495 break; 7496 case RSO_OPTIONS_OC_SA: 7497 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7498 service_action >= 32) { 7499 ctl_set_invalid_field(/*ctsio*/ ctsio, 7500 /*sks_valid*/ 1, 7501 /*command*/ 1, 7502 /*field*/ 2, 7503 /*bit_valid*/ 1, 7504 /*bit*/ 2); 7505 ctl_done((union ctl_io *)ctsio); 7506 return (CTL_RETVAL_COMPLETE); 7507 } 7508 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7509 break; 7510 default: 7511 ctl_set_invalid_field(/*ctsio*/ ctsio, 7512 /*sks_valid*/ 1, 7513 /*command*/ 1, 7514 /*field*/ 2, 7515 /*bit_valid*/ 1, 7516 /*bit*/ 2); 7517 ctl_done((union ctl_io *)ctsio); 7518 return (CTL_RETVAL_COMPLETE); 7519 } 7520 7521 alloc_len = scsi_4btoul(cdb->length); 7522 7523 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7524 7525 ctsio->kern_sg_entries = 0; 7526 7527 if (total_len < alloc_len) { 7528 ctsio->residual = alloc_len - total_len; 7529 ctsio->kern_data_len = total_len; 7530 ctsio->kern_total_len = total_len; 7531 } else { 7532 ctsio->residual = 0; 7533 ctsio->kern_data_len = alloc_len; 7534 ctsio->kern_total_len = alloc_len; 7535 } 7536 ctsio->kern_data_resid = 0; 7537 ctsio->kern_rel_offset = 0; 7538 7539 switch (cdb->options & RSO_OPTIONS_MASK) { 7540 case RSO_OPTIONS_ALL: 7541 all = (struct scsi_report_supported_opcodes_all *) 7542 ctsio->kern_data_ptr; 7543 num = 0; 7544 for (i = 0; i < 256; i++) { 7545 entry = &ctl_cmd_table[i]; 7546 if (entry->flags & CTL_CMD_FLAG_SA5) { 7547 for (j = 0; j < 32; j++) { 7548 sentry = &((const struct ctl_cmd_entry *) 7549 entry->execute)[j]; 7550 if (!ctl_cmd_applicable( 7551 lun->be_lun->lun_type, sentry)) 7552 continue; 7553 descr = &all->descr[num++]; 7554 descr->opcode = i; 7555 scsi_ulto2b(j, descr->service_action); 7556 descr->flags = RSO_SERVACTV; 7557 scsi_ulto2b(sentry->length, 7558 descr->cdb_length); 7559 } 7560 } else { 7561 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7562 entry)) 7563 continue; 7564 descr = &all->descr[num++]; 7565 descr->opcode = i; 7566 scsi_ulto2b(0, descr->service_action); 7567 descr->flags = 0; 7568 scsi_ulto2b(entry->length, descr->cdb_length); 7569 } 7570 } 7571 scsi_ulto4b( 7572 num * sizeof(struct scsi_report_supported_opcodes_descr), 7573 all->length); 7574 break; 7575 case RSO_OPTIONS_OC: 7576 one = (struct scsi_report_supported_opcodes_one *) 7577 ctsio->kern_data_ptr; 7578 entry = &ctl_cmd_table[opcode]; 7579 goto fill_one; 7580 case RSO_OPTIONS_OC_SA: 7581 one = (struct scsi_report_supported_opcodes_one *) 7582 ctsio->kern_data_ptr; 7583 entry = &ctl_cmd_table[opcode]; 7584 entry = &((const struct ctl_cmd_entry *) 7585 entry->execute)[service_action]; 7586fill_one: 7587 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7588 one->support = 3; 7589 scsi_ulto2b(entry->length, one->cdb_length); 7590 one->cdb_usage[0] = opcode; 7591 memcpy(&one->cdb_usage[1], entry->usage, 7592 entry->length - 1); 7593 } else 7594 one->support = 1; 7595 break; 7596 } 7597 7598 ctl_set_success(ctsio); 7599 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7600 ctsio->be_move_done = ctl_config_move_done; 7601 ctl_datamove((union ctl_io *)ctsio); 7602 return(retval); 7603} 7604 7605int 7606ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7607{ 7608 struct scsi_report_supported_tmf *cdb; 7609 struct scsi_report_supported_tmf_data *data; 7610 int retval; 7611 int alloc_len, total_len; 7612 7613 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7614 7615 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7616 7617 retval = CTL_RETVAL_COMPLETE; 7618 7619 total_len = sizeof(struct scsi_report_supported_tmf_data); 7620 alloc_len = scsi_4btoul(cdb->length); 7621 7622 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7623 7624 ctsio->kern_sg_entries = 0; 7625 7626 if (total_len < alloc_len) { 7627 ctsio->residual = alloc_len - total_len; 7628 ctsio->kern_data_len = total_len; 7629 ctsio->kern_total_len = total_len; 7630 } else { 7631 ctsio->residual = 0; 7632 ctsio->kern_data_len = alloc_len; 7633 ctsio->kern_total_len = alloc_len; 7634 } 7635 ctsio->kern_data_resid = 0; 7636 ctsio->kern_rel_offset = 0; 7637 7638 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7639 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_TRS; 7640 data->byte2 |= RST_ITNRS; 7641 7642 ctl_set_success(ctsio); 7643 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7644 ctsio->be_move_done = ctl_config_move_done; 7645 ctl_datamove((union ctl_io *)ctsio); 7646 return (retval); 7647} 7648 7649int 7650ctl_report_timestamp(struct ctl_scsiio *ctsio) 7651{ 7652 struct scsi_report_timestamp *cdb; 7653 struct scsi_report_timestamp_data *data; 7654 struct timeval tv; 7655 int64_t timestamp; 7656 int retval; 7657 int alloc_len, total_len; 7658 7659 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7660 7661 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7662 7663 retval = CTL_RETVAL_COMPLETE; 7664 7665 total_len = sizeof(struct scsi_report_timestamp_data); 7666 alloc_len = scsi_4btoul(cdb->length); 7667 7668 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7669 7670 ctsio->kern_sg_entries = 0; 7671 7672 if (total_len < alloc_len) { 7673 ctsio->residual = alloc_len - total_len; 7674 ctsio->kern_data_len = total_len; 7675 ctsio->kern_total_len = total_len; 7676 } else { 7677 ctsio->residual = 0; 7678 ctsio->kern_data_len = alloc_len; 7679 ctsio->kern_total_len = alloc_len; 7680 } 7681 ctsio->kern_data_resid = 0; 7682 ctsio->kern_rel_offset = 0; 7683 7684 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7685 scsi_ulto2b(sizeof(*data) - 2, data->length); 7686 data->origin = RTS_ORIG_OUTSIDE; 7687 getmicrotime(&tv); 7688 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7689 scsi_ulto4b(timestamp >> 16, data->timestamp); 7690 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7691 7692 ctl_set_success(ctsio); 7693 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7694 ctsio->be_move_done = ctl_config_move_done; 7695 ctl_datamove((union ctl_io *)ctsio); 7696 return (retval); 7697} 7698 7699int 7700ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7701{ 7702 struct scsi_per_res_in *cdb; 7703 int alloc_len, total_len = 0; 7704 /* struct scsi_per_res_in_rsrv in_data; */ 7705 struct ctl_lun *lun; 7706 struct ctl_softc *softc; 7707 uint64_t key; 7708 7709 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7710 7711 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7712 7713 alloc_len = scsi_2btoul(cdb->length); 7714 7715 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7716 softc = lun->ctl_softc; 7717 7718retry: 7719 mtx_lock(&lun->lun_lock); 7720 switch (cdb->action) { 7721 case SPRI_RK: /* read keys */ 7722 total_len = sizeof(struct scsi_per_res_in_keys) + 7723 lun->pr_key_count * 7724 sizeof(struct scsi_per_res_key); 7725 break; 7726 case SPRI_RR: /* read reservation */ 7727 if (lun->flags & CTL_LUN_PR_RESERVED) 7728 total_len = sizeof(struct scsi_per_res_in_rsrv); 7729 else 7730 total_len = sizeof(struct scsi_per_res_in_header); 7731 break; 7732 case SPRI_RC: /* report capabilities */ 7733 total_len = sizeof(struct scsi_per_res_cap); 7734 break; 7735 case SPRI_RS: /* read full status */ 7736 total_len = sizeof(struct scsi_per_res_in_header) + 7737 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7738 lun->pr_key_count; 7739 break; 7740 default: 7741 panic("Invalid PR type %x", cdb->action); 7742 } 7743 mtx_unlock(&lun->lun_lock); 7744 7745 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7746 7747 if (total_len < alloc_len) { 7748 ctsio->residual = alloc_len - total_len; 7749 ctsio->kern_data_len = total_len; 7750 ctsio->kern_total_len = total_len; 7751 } else { 7752 ctsio->residual = 0; 7753 ctsio->kern_data_len = alloc_len; 7754 ctsio->kern_total_len = alloc_len; 7755 } 7756 7757 ctsio->kern_data_resid = 0; 7758 ctsio->kern_rel_offset = 0; 7759 ctsio->kern_sg_entries = 0; 7760 7761 mtx_lock(&lun->lun_lock); 7762 switch (cdb->action) { 7763 case SPRI_RK: { // read keys 7764 struct scsi_per_res_in_keys *res_keys; 7765 int i, key_count; 7766 7767 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7768 7769 /* 7770 * We had to drop the lock to allocate our buffer, which 7771 * leaves time for someone to come in with another 7772 * persistent reservation. (That is unlikely, though, 7773 * since this should be the only persistent reservation 7774 * command active right now.) 7775 */ 7776 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7777 (lun->pr_key_count * 7778 sizeof(struct scsi_per_res_key)))){ 7779 mtx_unlock(&lun->lun_lock); 7780 free(ctsio->kern_data_ptr, M_CTL); 7781 printf("%s: reservation length changed, retrying\n", 7782 __func__); 7783 goto retry; 7784 } 7785 7786 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7787 7788 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7789 lun->pr_key_count, res_keys->header.length); 7790 7791 for (i = 0, key_count = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7792 if ((key = ctl_get_prkey(lun, i)) == 0) 7793 continue; 7794 7795 /* 7796 * We used lun->pr_key_count to calculate the 7797 * size to allocate. If it turns out the number of 7798 * initiators with the registered flag set is 7799 * larger than that (i.e. they haven't been kept in 7800 * sync), we've got a problem. 7801 */ 7802 if (key_count >= lun->pr_key_count) { 7803#ifdef NEEDTOPORT 7804 csevent_log(CSC_CTL | CSC_SHELF_SW | 7805 CTL_PR_ERROR, 7806 csevent_LogType_Fault, 7807 csevent_AlertLevel_Yellow, 7808 csevent_FRU_ShelfController, 7809 csevent_FRU_Firmware, 7810 csevent_FRU_Unknown, 7811 "registered keys %d >= key " 7812 "count %d", key_count, 7813 lun->pr_key_count); 7814#endif 7815 key_count++; 7816 continue; 7817 } 7818 scsi_u64to8b(key, res_keys->keys[key_count].key); 7819 key_count++; 7820 } 7821 break; 7822 } 7823 case SPRI_RR: { // read reservation 7824 struct scsi_per_res_in_rsrv *res; 7825 int tmp_len, header_only; 7826 7827 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7828 7829 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7830 7831 if (lun->flags & CTL_LUN_PR_RESERVED) 7832 { 7833 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7834 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7835 res->header.length); 7836 header_only = 0; 7837 } else { 7838 tmp_len = sizeof(struct scsi_per_res_in_header); 7839 scsi_ulto4b(0, res->header.length); 7840 header_only = 1; 7841 } 7842 7843 /* 7844 * We had to drop the lock to allocate our buffer, which 7845 * leaves time for someone to come in with another 7846 * persistent reservation. (That is unlikely, though, 7847 * since this should be the only persistent reservation 7848 * command active right now.) 7849 */ 7850 if (tmp_len != total_len) { 7851 mtx_unlock(&lun->lun_lock); 7852 free(ctsio->kern_data_ptr, M_CTL); 7853 printf("%s: reservation status changed, retrying\n", 7854 __func__); 7855 goto retry; 7856 } 7857 7858 /* 7859 * No reservation held, so we're done. 7860 */ 7861 if (header_only != 0) 7862 break; 7863 7864 /* 7865 * If the registration is an All Registrants type, the key 7866 * is 0, since it doesn't really matter. 7867 */ 7868 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7869 scsi_u64to8b(ctl_get_prkey(lun, lun->pr_res_idx), 7870 res->data.reservation); 7871 } 7872 res->data.scopetype = lun->res_type; 7873 break; 7874 } 7875 case SPRI_RC: //report capabilities 7876 { 7877 struct scsi_per_res_cap *res_cap; 7878 uint16_t type_mask; 7879 7880 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7881 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7882 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_5; 7883 type_mask = SPRI_TM_WR_EX_AR | 7884 SPRI_TM_EX_AC_RO | 7885 SPRI_TM_WR_EX_RO | 7886 SPRI_TM_EX_AC | 7887 SPRI_TM_WR_EX | 7888 SPRI_TM_EX_AC_AR; 7889 scsi_ulto2b(type_mask, res_cap->type_mask); 7890 break; 7891 } 7892 case SPRI_RS: { // read full status 7893 struct scsi_per_res_in_full *res_status; 7894 struct scsi_per_res_in_full_desc *res_desc; 7895 struct ctl_port *port; 7896 int i, len; 7897 7898 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7899 7900 /* 7901 * We had to drop the lock to allocate our buffer, which 7902 * leaves time for someone to come in with another 7903 * persistent reservation. (That is unlikely, though, 7904 * since this should be the only persistent reservation 7905 * command active right now.) 7906 */ 7907 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7908 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7909 lun->pr_key_count)){ 7910 mtx_unlock(&lun->lun_lock); 7911 free(ctsio->kern_data_ptr, M_CTL); 7912 printf("%s: reservation length changed, retrying\n", 7913 __func__); 7914 goto retry; 7915 } 7916 7917 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 7918 7919 res_desc = &res_status->desc[0]; 7920 for (i = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7921 if ((key = ctl_get_prkey(lun, i)) == 0) 7922 continue; 7923 7924 scsi_u64to8b(key, res_desc->res_key.key); 7925 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7926 (lun->pr_res_idx == i || 7927 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7928 res_desc->flags = SPRI_FULL_R_HOLDER; 7929 res_desc->scopetype = lun->res_type; 7930 } 7931 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7932 res_desc->rel_trgt_port_id); 7933 len = 0; 7934 port = softc->ctl_ports[ 7935 ctl_port_idx(i / CTL_MAX_INIT_PER_PORT)]; 7936 if (port != NULL) 7937 len = ctl_create_iid(port, 7938 i % CTL_MAX_INIT_PER_PORT, 7939 res_desc->transport_id); 7940 scsi_ulto4b(len, res_desc->additional_length); 7941 res_desc = (struct scsi_per_res_in_full_desc *) 7942 &res_desc->transport_id[len]; 7943 } 7944 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7945 res_status->header.length); 7946 break; 7947 } 7948 default: 7949 /* 7950 * This is a bug, because we just checked for this above, 7951 * and should have returned an error. 7952 */ 7953 panic("Invalid PR type %x", cdb->action); 7954 break; /* NOTREACHED */ 7955 } 7956 mtx_unlock(&lun->lun_lock); 7957 7958 ctl_set_success(ctsio); 7959 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7960 ctsio->be_move_done = ctl_config_move_done; 7961 ctl_datamove((union ctl_io *)ctsio); 7962 return (CTL_RETVAL_COMPLETE); 7963} 7964 7965static void 7966ctl_est_res_ua(struct ctl_lun *lun, uint32_t residx, ctl_ua_type ua) 7967{ 7968 int off = lun->ctl_softc->persis_offset; 7969 7970 if (residx >= off && residx < off + CTL_MAX_INITIATORS) 7971 ctl_est_ua(lun, residx - off, ua); 7972} 7973 7974/* 7975 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7976 * it should return. 7977 */ 7978static int 7979ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7980 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7981 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7982 struct scsi_per_res_out_parms* param) 7983{ 7984 union ctl_ha_msg persis_io; 7985 int retval, i; 7986 int isc_retval; 7987 7988 retval = 0; 7989 7990 mtx_lock(&lun->lun_lock); 7991 if (sa_res_key == 0) { 7992 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7993 /* validate scope and type */ 7994 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7995 SPR_LU_SCOPE) { 7996 mtx_unlock(&lun->lun_lock); 7997 ctl_set_invalid_field(/*ctsio*/ ctsio, 7998 /*sks_valid*/ 1, 7999 /*command*/ 1, 8000 /*field*/ 2, 8001 /*bit_valid*/ 1, 8002 /*bit*/ 4); 8003 ctl_done((union ctl_io *)ctsio); 8004 return (1); 8005 } 8006 8007 if (type>8 || type==2 || type==4 || type==0) { 8008 mtx_unlock(&lun->lun_lock); 8009 ctl_set_invalid_field(/*ctsio*/ ctsio, 8010 /*sks_valid*/ 1, 8011 /*command*/ 1, 8012 /*field*/ 2, 8013 /*bit_valid*/ 1, 8014 /*bit*/ 0); 8015 ctl_done((union ctl_io *)ctsio); 8016 return (1); 8017 } 8018 8019 /* 8020 * Unregister everybody else and build UA for 8021 * them 8022 */ 8023 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8024 if (i == residx || ctl_get_prkey(lun, i) == 0) 8025 continue; 8026 8027 ctl_clr_prkey(lun, i); 8028 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8029 } 8030 lun->pr_key_count = 1; 8031 lun->res_type = type; 8032 if (lun->res_type != SPR_TYPE_WR_EX_AR 8033 && lun->res_type != SPR_TYPE_EX_AC_AR) 8034 lun->pr_res_idx = residx; 8035 8036 /* send msg to other side */ 8037 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8038 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8039 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8040 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8041 persis_io.pr.pr_info.res_type = type; 8042 memcpy(persis_io.pr.pr_info.sa_res_key, 8043 param->serv_act_res_key, 8044 sizeof(param->serv_act_res_key)); 8045 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8046 &persis_io, sizeof(persis_io), 0)) > 8047 CTL_HA_STATUS_SUCCESS) { 8048 printf("CTL:Persis Out error returned " 8049 "from ctl_ha_msg_send %d\n", 8050 isc_retval); 8051 } 8052 } else { 8053 /* not all registrants */ 8054 mtx_unlock(&lun->lun_lock); 8055 free(ctsio->kern_data_ptr, M_CTL); 8056 ctl_set_invalid_field(ctsio, 8057 /*sks_valid*/ 1, 8058 /*command*/ 0, 8059 /*field*/ 8, 8060 /*bit_valid*/ 0, 8061 /*bit*/ 0); 8062 ctl_done((union ctl_io *)ctsio); 8063 return (1); 8064 } 8065 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8066 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 8067 int found = 0; 8068 8069 if (res_key == sa_res_key) { 8070 /* special case */ 8071 /* 8072 * The spec implies this is not good but doesn't 8073 * say what to do. There are two choices either 8074 * generate a res conflict or check condition 8075 * with illegal field in parameter data. Since 8076 * that is what is done when the sa_res_key is 8077 * zero I'll take that approach since this has 8078 * to do with the sa_res_key. 8079 */ 8080 mtx_unlock(&lun->lun_lock); 8081 free(ctsio->kern_data_ptr, M_CTL); 8082 ctl_set_invalid_field(ctsio, 8083 /*sks_valid*/ 1, 8084 /*command*/ 0, 8085 /*field*/ 8, 8086 /*bit_valid*/ 0, 8087 /*bit*/ 0); 8088 ctl_done((union ctl_io *)ctsio); 8089 return (1); 8090 } 8091 8092 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8093 if (ctl_get_prkey(lun, i) != sa_res_key) 8094 continue; 8095 8096 found = 1; 8097 ctl_clr_prkey(lun, i); 8098 lun->pr_key_count--; 8099 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8100 } 8101 if (!found) { 8102 mtx_unlock(&lun->lun_lock); 8103 free(ctsio->kern_data_ptr, M_CTL); 8104 ctl_set_reservation_conflict(ctsio); 8105 ctl_done((union ctl_io *)ctsio); 8106 return (CTL_RETVAL_COMPLETE); 8107 } 8108 /* send msg to other side */ 8109 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8110 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8111 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8112 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8113 persis_io.pr.pr_info.res_type = type; 8114 memcpy(persis_io.pr.pr_info.sa_res_key, 8115 param->serv_act_res_key, 8116 sizeof(param->serv_act_res_key)); 8117 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8118 &persis_io, sizeof(persis_io), 0)) > 8119 CTL_HA_STATUS_SUCCESS) { 8120 printf("CTL:Persis Out error returned from " 8121 "ctl_ha_msg_send %d\n", isc_retval); 8122 } 8123 } else { 8124 /* Reserved but not all registrants */ 8125 /* sa_res_key is res holder */ 8126 if (sa_res_key == ctl_get_prkey(lun, lun->pr_res_idx)) { 8127 /* validate scope and type */ 8128 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8129 SPR_LU_SCOPE) { 8130 mtx_unlock(&lun->lun_lock); 8131 ctl_set_invalid_field(/*ctsio*/ ctsio, 8132 /*sks_valid*/ 1, 8133 /*command*/ 1, 8134 /*field*/ 2, 8135 /*bit_valid*/ 1, 8136 /*bit*/ 4); 8137 ctl_done((union ctl_io *)ctsio); 8138 return (1); 8139 } 8140 8141 if (type>8 || type==2 || type==4 || type==0) { 8142 mtx_unlock(&lun->lun_lock); 8143 ctl_set_invalid_field(/*ctsio*/ ctsio, 8144 /*sks_valid*/ 1, 8145 /*command*/ 1, 8146 /*field*/ 2, 8147 /*bit_valid*/ 1, 8148 /*bit*/ 0); 8149 ctl_done((union ctl_io *)ctsio); 8150 return (1); 8151 } 8152 8153 /* 8154 * Do the following: 8155 * if sa_res_key != res_key remove all 8156 * registrants w/sa_res_key and generate UA 8157 * for these registrants(Registrations 8158 * Preempted) if it wasn't an exclusive 8159 * reservation generate UA(Reservations 8160 * Preempted) for all other registered nexuses 8161 * if the type has changed. Establish the new 8162 * reservation and holder. If res_key and 8163 * sa_res_key are the same do the above 8164 * except don't unregister the res holder. 8165 */ 8166 8167 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8168 if (i == residx || ctl_get_prkey(lun, i) == 0) 8169 continue; 8170 8171 if (sa_res_key == ctl_get_prkey(lun, i)) { 8172 ctl_clr_prkey(lun, i); 8173 lun->pr_key_count--; 8174 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8175 } else if (type != lun->res_type 8176 && (lun->res_type == SPR_TYPE_WR_EX_RO 8177 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 8178 ctl_est_res_ua(lun, i, CTL_UA_RES_RELEASE); 8179 } 8180 } 8181 lun->res_type = type; 8182 if (lun->res_type != SPR_TYPE_WR_EX_AR 8183 && lun->res_type != SPR_TYPE_EX_AC_AR) 8184 lun->pr_res_idx = residx; 8185 else 8186 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8187 8188 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8189 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8190 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8191 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8192 persis_io.pr.pr_info.res_type = type; 8193 memcpy(persis_io.pr.pr_info.sa_res_key, 8194 param->serv_act_res_key, 8195 sizeof(param->serv_act_res_key)); 8196 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8197 &persis_io, sizeof(persis_io), 0)) > 8198 CTL_HA_STATUS_SUCCESS) { 8199 printf("CTL:Persis Out error returned " 8200 "from ctl_ha_msg_send %d\n", 8201 isc_retval); 8202 } 8203 } else { 8204 /* 8205 * sa_res_key is not the res holder just 8206 * remove registrants 8207 */ 8208 int found=0; 8209 8210 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8211 if (sa_res_key != ctl_get_prkey(lun, i)) 8212 continue; 8213 8214 found = 1; 8215 ctl_clr_prkey(lun, i); 8216 lun->pr_key_count--; 8217 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8218 } 8219 8220 if (!found) { 8221 mtx_unlock(&lun->lun_lock); 8222 free(ctsio->kern_data_ptr, M_CTL); 8223 ctl_set_reservation_conflict(ctsio); 8224 ctl_done((union ctl_io *)ctsio); 8225 return (1); 8226 } 8227 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8228 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8229 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8230 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8231 persis_io.pr.pr_info.res_type = type; 8232 memcpy(persis_io.pr.pr_info.sa_res_key, 8233 param->serv_act_res_key, 8234 sizeof(param->serv_act_res_key)); 8235 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8236 &persis_io, sizeof(persis_io), 0)) > 8237 CTL_HA_STATUS_SUCCESS) { 8238 printf("CTL:Persis Out error returned " 8239 "from ctl_ha_msg_send %d\n", 8240 isc_retval); 8241 } 8242 } 8243 } 8244 8245 lun->PRGeneration++; 8246 mtx_unlock(&lun->lun_lock); 8247 8248 return (retval); 8249} 8250 8251static void 8252ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8253{ 8254 uint64_t sa_res_key; 8255 int i; 8256 8257 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8258 8259 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8260 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8261 || sa_res_key != ctl_get_prkey(lun, lun->pr_res_idx)) { 8262 if (sa_res_key == 0) { 8263 /* 8264 * Unregister everybody else and build UA for 8265 * them 8266 */ 8267 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8268 if (i == msg->pr.pr_info.residx || 8269 ctl_get_prkey(lun, i) == 0) 8270 continue; 8271 8272 ctl_clr_prkey(lun, i); 8273 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8274 } 8275 8276 lun->pr_key_count = 1; 8277 lun->res_type = msg->pr.pr_info.res_type; 8278 if (lun->res_type != SPR_TYPE_WR_EX_AR 8279 && lun->res_type != SPR_TYPE_EX_AC_AR) 8280 lun->pr_res_idx = msg->pr.pr_info.residx; 8281 } else { 8282 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8283 if (sa_res_key == ctl_get_prkey(lun, i)) 8284 continue; 8285 8286 ctl_clr_prkey(lun, i); 8287 lun->pr_key_count--; 8288 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8289 } 8290 } 8291 } else { 8292 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8293 if (i == msg->pr.pr_info.residx || 8294 ctl_get_prkey(lun, i) == 0) 8295 continue; 8296 8297 if (sa_res_key == ctl_get_prkey(lun, i)) { 8298 ctl_clr_prkey(lun, i); 8299 lun->pr_key_count--; 8300 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8301 } else if (msg->pr.pr_info.res_type != lun->res_type 8302 && (lun->res_type == SPR_TYPE_WR_EX_RO 8303 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8304 ctl_est_res_ua(lun, i, CTL_UA_RES_RELEASE); 8305 } 8306 } 8307 lun->res_type = msg->pr.pr_info.res_type; 8308 if (lun->res_type != SPR_TYPE_WR_EX_AR 8309 && lun->res_type != SPR_TYPE_EX_AC_AR) 8310 lun->pr_res_idx = msg->pr.pr_info.residx; 8311 else 8312 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8313 } 8314 lun->PRGeneration++; 8315 8316} 8317 8318 8319int 8320ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8321{ 8322 int retval; 8323 int isc_retval; 8324 u_int32_t param_len; 8325 struct scsi_per_res_out *cdb; 8326 struct ctl_lun *lun; 8327 struct scsi_per_res_out_parms* param; 8328 struct ctl_softc *softc; 8329 uint32_t residx; 8330 uint64_t res_key, sa_res_key, key; 8331 uint8_t type; 8332 union ctl_ha_msg persis_io; 8333 int i; 8334 8335 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8336 8337 retval = CTL_RETVAL_COMPLETE; 8338 8339 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8340 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8341 softc = lun->ctl_softc; 8342 8343 /* 8344 * We only support whole-LUN scope. The scope & type are ignored for 8345 * register, register and ignore existing key and clear. 8346 * We sometimes ignore scope and type on preempts too!! 8347 * Verify reservation type here as well. 8348 */ 8349 type = cdb->scope_type & SPR_TYPE_MASK; 8350 if ((cdb->action == SPRO_RESERVE) 8351 || (cdb->action == SPRO_RELEASE)) { 8352 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8353 ctl_set_invalid_field(/*ctsio*/ ctsio, 8354 /*sks_valid*/ 1, 8355 /*command*/ 1, 8356 /*field*/ 2, 8357 /*bit_valid*/ 1, 8358 /*bit*/ 4); 8359 ctl_done((union ctl_io *)ctsio); 8360 return (CTL_RETVAL_COMPLETE); 8361 } 8362 8363 if (type>8 || type==2 || type==4 || type==0) { 8364 ctl_set_invalid_field(/*ctsio*/ ctsio, 8365 /*sks_valid*/ 1, 8366 /*command*/ 1, 8367 /*field*/ 2, 8368 /*bit_valid*/ 1, 8369 /*bit*/ 0); 8370 ctl_done((union ctl_io *)ctsio); 8371 return (CTL_RETVAL_COMPLETE); 8372 } 8373 } 8374 8375 param_len = scsi_4btoul(cdb->length); 8376 8377 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8378 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8379 ctsio->kern_data_len = param_len; 8380 ctsio->kern_total_len = param_len; 8381 ctsio->kern_data_resid = 0; 8382 ctsio->kern_rel_offset = 0; 8383 ctsio->kern_sg_entries = 0; 8384 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8385 ctsio->be_move_done = ctl_config_move_done; 8386 ctl_datamove((union ctl_io *)ctsio); 8387 8388 return (CTL_RETVAL_COMPLETE); 8389 } 8390 8391 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8392 8393 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8394 res_key = scsi_8btou64(param->res_key.key); 8395 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8396 8397 /* 8398 * Validate the reservation key here except for SPRO_REG_IGNO 8399 * This must be done for all other service actions 8400 */ 8401 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8402 mtx_lock(&lun->lun_lock); 8403 if ((key = ctl_get_prkey(lun, residx)) != 0) { 8404 if (res_key != key) { 8405 /* 8406 * The current key passed in doesn't match 8407 * the one the initiator previously 8408 * registered. 8409 */ 8410 mtx_unlock(&lun->lun_lock); 8411 free(ctsio->kern_data_ptr, M_CTL); 8412 ctl_set_reservation_conflict(ctsio); 8413 ctl_done((union ctl_io *)ctsio); 8414 return (CTL_RETVAL_COMPLETE); 8415 } 8416 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8417 /* 8418 * We are not registered 8419 */ 8420 mtx_unlock(&lun->lun_lock); 8421 free(ctsio->kern_data_ptr, M_CTL); 8422 ctl_set_reservation_conflict(ctsio); 8423 ctl_done((union ctl_io *)ctsio); 8424 return (CTL_RETVAL_COMPLETE); 8425 } else if (res_key != 0) { 8426 /* 8427 * We are not registered and trying to register but 8428 * the register key isn't zero. 8429 */ 8430 mtx_unlock(&lun->lun_lock); 8431 free(ctsio->kern_data_ptr, M_CTL); 8432 ctl_set_reservation_conflict(ctsio); 8433 ctl_done((union ctl_io *)ctsio); 8434 return (CTL_RETVAL_COMPLETE); 8435 } 8436 mtx_unlock(&lun->lun_lock); 8437 } 8438 8439 switch (cdb->action & SPRO_ACTION_MASK) { 8440 case SPRO_REGISTER: 8441 case SPRO_REG_IGNO: { 8442 8443#if 0 8444 printf("Registration received\n"); 8445#endif 8446 8447 /* 8448 * We don't support any of these options, as we report in 8449 * the read capabilities request (see 8450 * ctl_persistent_reserve_in(), above). 8451 */ 8452 if ((param->flags & SPR_SPEC_I_PT) 8453 || (param->flags & SPR_ALL_TG_PT) 8454 || (param->flags & SPR_APTPL)) { 8455 int bit_ptr; 8456 8457 if (param->flags & SPR_APTPL) 8458 bit_ptr = 0; 8459 else if (param->flags & SPR_ALL_TG_PT) 8460 bit_ptr = 2; 8461 else /* SPR_SPEC_I_PT */ 8462 bit_ptr = 3; 8463 8464 free(ctsio->kern_data_ptr, M_CTL); 8465 ctl_set_invalid_field(ctsio, 8466 /*sks_valid*/ 1, 8467 /*command*/ 0, 8468 /*field*/ 20, 8469 /*bit_valid*/ 1, 8470 /*bit*/ bit_ptr); 8471 ctl_done((union ctl_io *)ctsio); 8472 return (CTL_RETVAL_COMPLETE); 8473 } 8474 8475 mtx_lock(&lun->lun_lock); 8476 8477 /* 8478 * The initiator wants to clear the 8479 * key/unregister. 8480 */ 8481 if (sa_res_key == 0) { 8482 if ((res_key == 0 8483 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8484 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8485 && ctl_get_prkey(lun, residx) == 0)) { 8486 mtx_unlock(&lun->lun_lock); 8487 goto done; 8488 } 8489 8490 ctl_clr_prkey(lun, residx); 8491 lun->pr_key_count--; 8492 8493 if (residx == lun->pr_res_idx) { 8494 lun->flags &= ~CTL_LUN_PR_RESERVED; 8495 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8496 8497 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8498 || lun->res_type == SPR_TYPE_EX_AC_RO) 8499 && lun->pr_key_count) { 8500 /* 8501 * If the reservation is a registrants 8502 * only type we need to generate a UA 8503 * for other registered inits. The 8504 * sense code should be RESERVATIONS 8505 * RELEASED 8506 */ 8507 8508 for (i = 0; i < CTL_MAX_INITIATORS;i++){ 8509 if (ctl_get_prkey(lun, i + 8510 softc->persis_offset) == 0) 8511 continue; 8512 ctl_est_ua(lun, i, 8513 CTL_UA_RES_RELEASE); 8514 } 8515 } 8516 lun->res_type = 0; 8517 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8518 if (lun->pr_key_count==0) { 8519 lun->flags &= ~CTL_LUN_PR_RESERVED; 8520 lun->res_type = 0; 8521 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8522 } 8523 } 8524 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8525 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8526 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8527 persis_io.pr.pr_info.residx = residx; 8528 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8529 &persis_io, sizeof(persis_io), 0 )) > 8530 CTL_HA_STATUS_SUCCESS) { 8531 printf("CTL:Persis Out error returned from " 8532 "ctl_ha_msg_send %d\n", isc_retval); 8533 } 8534 } else /* sa_res_key != 0 */ { 8535 8536 /* 8537 * If we aren't registered currently then increment 8538 * the key count and set the registered flag. 8539 */ 8540 ctl_alloc_prkey(lun, residx); 8541 if (ctl_get_prkey(lun, residx) == 0) 8542 lun->pr_key_count++; 8543 ctl_set_prkey(lun, residx, sa_res_key); 8544 8545 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8546 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8547 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8548 persis_io.pr.pr_info.residx = residx; 8549 memcpy(persis_io.pr.pr_info.sa_res_key, 8550 param->serv_act_res_key, 8551 sizeof(param->serv_act_res_key)); 8552 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8553 &persis_io, sizeof(persis_io), 0)) > 8554 CTL_HA_STATUS_SUCCESS) { 8555 printf("CTL:Persis Out error returned from " 8556 "ctl_ha_msg_send %d\n", isc_retval); 8557 } 8558 } 8559 lun->PRGeneration++; 8560 mtx_unlock(&lun->lun_lock); 8561 8562 break; 8563 } 8564 case SPRO_RESERVE: 8565#if 0 8566 printf("Reserve executed type %d\n", type); 8567#endif 8568 mtx_lock(&lun->lun_lock); 8569 if (lun->flags & CTL_LUN_PR_RESERVED) { 8570 /* 8571 * if this isn't the reservation holder and it's 8572 * not a "all registrants" type or if the type is 8573 * different then we have a conflict 8574 */ 8575 if ((lun->pr_res_idx != residx 8576 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8577 || lun->res_type != type) { 8578 mtx_unlock(&lun->lun_lock); 8579 free(ctsio->kern_data_ptr, M_CTL); 8580 ctl_set_reservation_conflict(ctsio); 8581 ctl_done((union ctl_io *)ctsio); 8582 return (CTL_RETVAL_COMPLETE); 8583 } 8584 mtx_unlock(&lun->lun_lock); 8585 } else /* create a reservation */ { 8586 /* 8587 * If it's not an "all registrants" type record 8588 * reservation holder 8589 */ 8590 if (type != SPR_TYPE_WR_EX_AR 8591 && type != SPR_TYPE_EX_AC_AR) 8592 lun->pr_res_idx = residx; /* Res holder */ 8593 else 8594 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8595 8596 lun->flags |= CTL_LUN_PR_RESERVED; 8597 lun->res_type = type; 8598 8599 mtx_unlock(&lun->lun_lock); 8600 8601 /* send msg to other side */ 8602 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8603 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8604 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8605 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8606 persis_io.pr.pr_info.res_type = type; 8607 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8608 &persis_io, sizeof(persis_io), 0)) > 8609 CTL_HA_STATUS_SUCCESS) { 8610 printf("CTL:Persis Out error returned from " 8611 "ctl_ha_msg_send %d\n", isc_retval); 8612 } 8613 } 8614 break; 8615 8616 case SPRO_RELEASE: 8617 mtx_lock(&lun->lun_lock); 8618 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8619 /* No reservation exists return good status */ 8620 mtx_unlock(&lun->lun_lock); 8621 goto done; 8622 } 8623 /* 8624 * Is this nexus a reservation holder? 8625 */ 8626 if (lun->pr_res_idx != residx 8627 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8628 /* 8629 * not a res holder return good status but 8630 * do nothing 8631 */ 8632 mtx_unlock(&lun->lun_lock); 8633 goto done; 8634 } 8635 8636 if (lun->res_type != type) { 8637 mtx_unlock(&lun->lun_lock); 8638 free(ctsio->kern_data_ptr, M_CTL); 8639 ctl_set_illegal_pr_release(ctsio); 8640 ctl_done((union ctl_io *)ctsio); 8641 return (CTL_RETVAL_COMPLETE); 8642 } 8643 8644 /* okay to release */ 8645 lun->flags &= ~CTL_LUN_PR_RESERVED; 8646 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8647 lun->res_type = 0; 8648 8649 /* 8650 * if this isn't an exclusive access 8651 * res generate UA for all other 8652 * registrants. 8653 */ 8654 if (type != SPR_TYPE_EX_AC 8655 && type != SPR_TYPE_WR_EX) { 8656 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8657 if (i == residx || 8658 ctl_get_prkey(lun, 8659 i + softc->persis_offset) == 0) 8660 continue; 8661 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8662 } 8663 } 8664 mtx_unlock(&lun->lun_lock); 8665 /* Send msg to other side */ 8666 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8667 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8668 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8669 if ((isc_retval=ctl_ha_msg_send( CTL_HA_CHAN_CTL, &persis_io, 8670 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8671 printf("CTL:Persis Out error returned from " 8672 "ctl_ha_msg_send %d\n", isc_retval); 8673 } 8674 break; 8675 8676 case SPRO_CLEAR: 8677 /* send msg to other side */ 8678 8679 mtx_lock(&lun->lun_lock); 8680 lun->flags &= ~CTL_LUN_PR_RESERVED; 8681 lun->res_type = 0; 8682 lun->pr_key_count = 0; 8683 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8684 8685 ctl_clr_prkey(lun, residx); 8686 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) 8687 if (ctl_get_prkey(lun, i) != 0) { 8688 ctl_clr_prkey(lun, i); 8689 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8690 } 8691 lun->PRGeneration++; 8692 mtx_unlock(&lun->lun_lock); 8693 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8694 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8695 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8696 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8697 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8698 printf("CTL:Persis Out error returned from " 8699 "ctl_ha_msg_send %d\n", isc_retval); 8700 } 8701 break; 8702 8703 case SPRO_PREEMPT: 8704 case SPRO_PRE_ABO: { 8705 int nretval; 8706 8707 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8708 residx, ctsio, cdb, param); 8709 if (nretval != 0) 8710 return (CTL_RETVAL_COMPLETE); 8711 break; 8712 } 8713 default: 8714 panic("Invalid PR type %x", cdb->action); 8715 } 8716 8717done: 8718 free(ctsio->kern_data_ptr, M_CTL); 8719 ctl_set_success(ctsio); 8720 ctl_done((union ctl_io *)ctsio); 8721 8722 return (retval); 8723} 8724 8725/* 8726 * This routine is for handling a message from the other SC pertaining to 8727 * persistent reserve out. All the error checking will have been done 8728 * so only perorming the action need be done here to keep the two 8729 * in sync. 8730 */ 8731static void 8732ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8733{ 8734 struct ctl_lun *lun; 8735 struct ctl_softc *softc; 8736 int i; 8737 uint32_t targ_lun; 8738 8739 softc = control_softc; 8740 8741 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8742 lun = softc->ctl_luns[targ_lun]; 8743 mtx_lock(&lun->lun_lock); 8744 switch(msg->pr.pr_info.action) { 8745 case CTL_PR_REG_KEY: 8746 ctl_alloc_prkey(lun, msg->pr.pr_info.residx); 8747 if (ctl_get_prkey(lun, msg->pr.pr_info.residx) == 0) 8748 lun->pr_key_count++; 8749 ctl_set_prkey(lun, msg->pr.pr_info.residx, 8750 scsi_8btou64(msg->pr.pr_info.sa_res_key)); 8751 lun->PRGeneration++; 8752 break; 8753 8754 case CTL_PR_UNREG_KEY: 8755 ctl_clr_prkey(lun, msg->pr.pr_info.residx); 8756 lun->pr_key_count--; 8757 8758 /* XXX Need to see if the reservation has been released */ 8759 /* if so do we need to generate UA? */ 8760 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8761 lun->flags &= ~CTL_LUN_PR_RESERVED; 8762 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8763 8764 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8765 || lun->res_type == SPR_TYPE_EX_AC_RO) 8766 && lun->pr_key_count) { 8767 /* 8768 * If the reservation is a registrants 8769 * only type we need to generate a UA 8770 * for other registered inits. The 8771 * sense code should be RESERVATIONS 8772 * RELEASED 8773 */ 8774 8775 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8776 if (ctl_get_prkey(lun, i + 8777 softc->persis_offset) == 0) 8778 continue; 8779 8780 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8781 } 8782 } 8783 lun->res_type = 0; 8784 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8785 if (lun->pr_key_count==0) { 8786 lun->flags &= ~CTL_LUN_PR_RESERVED; 8787 lun->res_type = 0; 8788 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8789 } 8790 } 8791 lun->PRGeneration++; 8792 break; 8793 8794 case CTL_PR_RESERVE: 8795 lun->flags |= CTL_LUN_PR_RESERVED; 8796 lun->res_type = msg->pr.pr_info.res_type; 8797 lun->pr_res_idx = msg->pr.pr_info.residx; 8798 8799 break; 8800 8801 case CTL_PR_RELEASE: 8802 /* 8803 * if this isn't an exclusive access res generate UA for all 8804 * other registrants. 8805 */ 8806 if (lun->res_type != SPR_TYPE_EX_AC 8807 && lun->res_type != SPR_TYPE_WR_EX) { 8808 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8809 if (ctl_get_prkey(lun, i + softc->persis_offset) != 0) 8810 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8811 } 8812 8813 lun->flags &= ~CTL_LUN_PR_RESERVED; 8814 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8815 lun->res_type = 0; 8816 break; 8817 8818 case CTL_PR_PREEMPT: 8819 ctl_pro_preempt_other(lun, msg); 8820 break; 8821 case CTL_PR_CLEAR: 8822 lun->flags &= ~CTL_LUN_PR_RESERVED; 8823 lun->res_type = 0; 8824 lun->pr_key_count = 0; 8825 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8826 8827 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8828 if (ctl_get_prkey(lun, i) == 0) 8829 continue; 8830 ctl_clr_prkey(lun, i); 8831 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8832 } 8833 lun->PRGeneration++; 8834 break; 8835 } 8836 8837 mtx_unlock(&lun->lun_lock); 8838} 8839 8840int 8841ctl_read_write(struct ctl_scsiio *ctsio) 8842{ 8843 struct ctl_lun *lun; 8844 struct ctl_lba_len_flags *lbalen; 8845 uint64_t lba; 8846 uint32_t num_blocks; 8847 int flags, retval; 8848 int isread; 8849 8850 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8851 8852 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8853 8854 flags = 0; 8855 retval = CTL_RETVAL_COMPLETE; 8856 8857 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8858 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8859 switch (ctsio->cdb[0]) { 8860 case READ_6: 8861 case WRITE_6: { 8862 struct scsi_rw_6 *cdb; 8863 8864 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8865 8866 lba = scsi_3btoul(cdb->addr); 8867 /* only 5 bits are valid in the most significant address byte */ 8868 lba &= 0x1fffff; 8869 num_blocks = cdb->length; 8870 /* 8871 * This is correct according to SBC-2. 8872 */ 8873 if (num_blocks == 0) 8874 num_blocks = 256; 8875 break; 8876 } 8877 case READ_10: 8878 case WRITE_10: { 8879 struct scsi_rw_10 *cdb; 8880 8881 cdb = (struct scsi_rw_10 *)ctsio->cdb; 8882 if (cdb->byte2 & SRW10_FUA) 8883 flags |= CTL_LLF_FUA; 8884 if (cdb->byte2 & SRW10_DPO) 8885 flags |= CTL_LLF_DPO; 8886 lba = scsi_4btoul(cdb->addr); 8887 num_blocks = scsi_2btoul(cdb->length); 8888 break; 8889 } 8890 case WRITE_VERIFY_10: { 8891 struct scsi_write_verify_10 *cdb; 8892 8893 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 8894 flags |= CTL_LLF_FUA; 8895 if (cdb->byte2 & SWV_DPO) 8896 flags |= CTL_LLF_DPO; 8897 lba = scsi_4btoul(cdb->addr); 8898 num_blocks = scsi_2btoul(cdb->length); 8899 break; 8900 } 8901 case READ_12: 8902 case WRITE_12: { 8903 struct scsi_rw_12 *cdb; 8904 8905 cdb = (struct scsi_rw_12 *)ctsio->cdb; 8906 if (cdb->byte2 & SRW12_FUA) 8907 flags |= CTL_LLF_FUA; 8908 if (cdb->byte2 & SRW12_DPO) 8909 flags |= CTL_LLF_DPO; 8910 lba = scsi_4btoul(cdb->addr); 8911 num_blocks = scsi_4btoul(cdb->length); 8912 break; 8913 } 8914 case WRITE_VERIFY_12: { 8915 struct scsi_write_verify_12 *cdb; 8916 8917 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 8918 flags |= CTL_LLF_FUA; 8919 if (cdb->byte2 & SWV_DPO) 8920 flags |= CTL_LLF_DPO; 8921 lba = scsi_4btoul(cdb->addr); 8922 num_blocks = scsi_4btoul(cdb->length); 8923 break; 8924 } 8925 case READ_16: 8926 case WRITE_16: { 8927 struct scsi_rw_16 *cdb; 8928 8929 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8930 if (cdb->byte2 & SRW12_FUA) 8931 flags |= CTL_LLF_FUA; 8932 if (cdb->byte2 & SRW12_DPO) 8933 flags |= CTL_LLF_DPO; 8934 lba = scsi_8btou64(cdb->addr); 8935 num_blocks = scsi_4btoul(cdb->length); 8936 break; 8937 } 8938 case WRITE_ATOMIC_16: { 8939 struct scsi_rw_16 *cdb; 8940 8941 if (lun->be_lun->atomicblock == 0) { 8942 ctl_set_invalid_opcode(ctsio); 8943 ctl_done((union ctl_io *)ctsio); 8944 return (CTL_RETVAL_COMPLETE); 8945 } 8946 8947 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8948 if (cdb->byte2 & SRW12_FUA) 8949 flags |= CTL_LLF_FUA; 8950 if (cdb->byte2 & SRW12_DPO) 8951 flags |= CTL_LLF_DPO; 8952 lba = scsi_8btou64(cdb->addr); 8953 num_blocks = scsi_4btoul(cdb->length); 8954 if (num_blocks > lun->be_lun->atomicblock) { 8955 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 8956 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 8957 /*bit*/ 0); 8958 ctl_done((union ctl_io *)ctsio); 8959 return (CTL_RETVAL_COMPLETE); 8960 } 8961 break; 8962 } 8963 case WRITE_VERIFY_16: { 8964 struct scsi_write_verify_16 *cdb; 8965 8966 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 8967 flags |= CTL_LLF_FUA; 8968 if (cdb->byte2 & SWV_DPO) 8969 flags |= CTL_LLF_DPO; 8970 lba = scsi_8btou64(cdb->addr); 8971 num_blocks = scsi_4btoul(cdb->length); 8972 break; 8973 } 8974 default: 8975 /* 8976 * We got a command we don't support. This shouldn't 8977 * happen, commands should be filtered out above us. 8978 */ 8979 ctl_set_invalid_opcode(ctsio); 8980 ctl_done((union ctl_io *)ctsio); 8981 8982 return (CTL_RETVAL_COMPLETE); 8983 break; /* NOTREACHED */ 8984 } 8985 8986 /* 8987 * The first check is to make sure we're in bounds, the second 8988 * check is to catch wrap-around problems. If the lba + num blocks 8989 * is less than the lba, then we've wrapped around and the block 8990 * range is invalid anyway. 8991 */ 8992 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8993 || ((lba + num_blocks) < lba)) { 8994 ctl_set_lba_out_of_range(ctsio); 8995 ctl_done((union ctl_io *)ctsio); 8996 return (CTL_RETVAL_COMPLETE); 8997 } 8998 8999 /* 9000 * According to SBC-3, a transfer length of 0 is not an error. 9001 * Note that this cannot happen with WRITE(6) or READ(6), since 0 9002 * translates to 256 blocks for those commands. 9003 */ 9004 if (num_blocks == 0) { 9005 ctl_set_success(ctsio); 9006 ctl_done((union ctl_io *)ctsio); 9007 return (CTL_RETVAL_COMPLETE); 9008 } 9009 9010 /* Set FUA and/or DPO if caches are disabled. */ 9011 if (isread) { 9012 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9013 SCP_RCD) != 0) 9014 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 9015 } else { 9016 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9017 SCP_WCE) == 0) 9018 flags |= CTL_LLF_FUA; 9019 } 9020 9021 lbalen = (struct ctl_lba_len_flags *) 9022 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9023 lbalen->lba = lba; 9024 lbalen->len = num_blocks; 9025 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 9026 9027 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9028 ctsio->kern_rel_offset = 0; 9029 9030 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 9031 9032 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9033 9034 return (retval); 9035} 9036 9037static int 9038ctl_cnw_cont(union ctl_io *io) 9039{ 9040 struct ctl_scsiio *ctsio; 9041 struct ctl_lun *lun; 9042 struct ctl_lba_len_flags *lbalen; 9043 int retval; 9044 9045 ctsio = &io->scsiio; 9046 ctsio->io_hdr.status = CTL_STATUS_NONE; 9047 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 9048 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9049 lbalen = (struct ctl_lba_len_flags *) 9050 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9051 lbalen->flags &= ~CTL_LLF_COMPARE; 9052 lbalen->flags |= CTL_LLF_WRITE; 9053 9054 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 9055 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9056 return (retval); 9057} 9058 9059int 9060ctl_cnw(struct ctl_scsiio *ctsio) 9061{ 9062 struct ctl_lun *lun; 9063 struct ctl_lba_len_flags *lbalen; 9064 uint64_t lba; 9065 uint32_t num_blocks; 9066 int flags, retval; 9067 9068 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9069 9070 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 9071 9072 flags = 0; 9073 retval = CTL_RETVAL_COMPLETE; 9074 9075 switch (ctsio->cdb[0]) { 9076 case COMPARE_AND_WRITE: { 9077 struct scsi_compare_and_write *cdb; 9078 9079 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 9080 if (cdb->byte2 & SRW10_FUA) 9081 flags |= CTL_LLF_FUA; 9082 if (cdb->byte2 & SRW10_DPO) 9083 flags |= CTL_LLF_DPO; 9084 lba = scsi_8btou64(cdb->addr); 9085 num_blocks = cdb->length; 9086 break; 9087 } 9088 default: 9089 /* 9090 * We got a command we don't support. This shouldn't 9091 * happen, commands should be filtered out above us. 9092 */ 9093 ctl_set_invalid_opcode(ctsio); 9094 ctl_done((union ctl_io *)ctsio); 9095 9096 return (CTL_RETVAL_COMPLETE); 9097 break; /* NOTREACHED */ 9098 } 9099 9100 /* 9101 * The first check is to make sure we're in bounds, the second 9102 * check is to catch wrap-around problems. If the lba + num blocks 9103 * is less than the lba, then we've wrapped around and the block 9104 * range is invalid anyway. 9105 */ 9106 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9107 || ((lba + num_blocks) < lba)) { 9108 ctl_set_lba_out_of_range(ctsio); 9109 ctl_done((union ctl_io *)ctsio); 9110 return (CTL_RETVAL_COMPLETE); 9111 } 9112 9113 /* 9114 * According to SBC-3, a transfer length of 0 is not an error. 9115 */ 9116 if (num_blocks == 0) { 9117 ctl_set_success(ctsio); 9118 ctl_done((union ctl_io *)ctsio); 9119 return (CTL_RETVAL_COMPLETE); 9120 } 9121 9122 /* Set FUA if write cache is disabled. */ 9123 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9124 SCP_WCE) == 0) 9125 flags |= CTL_LLF_FUA; 9126 9127 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 9128 ctsio->kern_rel_offset = 0; 9129 9130 /* 9131 * Set the IO_CONT flag, so that if this I/O gets passed to 9132 * ctl_data_submit_done(), it'll get passed back to 9133 * ctl_ctl_cnw_cont() for further processing. 9134 */ 9135 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 9136 ctsio->io_cont = ctl_cnw_cont; 9137 9138 lbalen = (struct ctl_lba_len_flags *) 9139 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9140 lbalen->lba = lba; 9141 lbalen->len = num_blocks; 9142 lbalen->flags = CTL_LLF_COMPARE | flags; 9143 9144 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 9145 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9146 return (retval); 9147} 9148 9149int 9150ctl_verify(struct ctl_scsiio *ctsio) 9151{ 9152 struct ctl_lun *lun; 9153 struct ctl_lba_len_flags *lbalen; 9154 uint64_t lba; 9155 uint32_t num_blocks; 9156 int bytchk, flags; 9157 int retval; 9158 9159 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9160 9161 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 9162 9163 bytchk = 0; 9164 flags = CTL_LLF_FUA; 9165 retval = CTL_RETVAL_COMPLETE; 9166 9167 switch (ctsio->cdb[0]) { 9168 case VERIFY_10: { 9169 struct scsi_verify_10 *cdb; 9170 9171 cdb = (struct scsi_verify_10 *)ctsio->cdb; 9172 if (cdb->byte2 & SVFY_BYTCHK) 9173 bytchk = 1; 9174 if (cdb->byte2 & SVFY_DPO) 9175 flags |= CTL_LLF_DPO; 9176 lba = scsi_4btoul(cdb->addr); 9177 num_blocks = scsi_2btoul(cdb->length); 9178 break; 9179 } 9180 case VERIFY_12: { 9181 struct scsi_verify_12 *cdb; 9182 9183 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9184 if (cdb->byte2 & SVFY_BYTCHK) 9185 bytchk = 1; 9186 if (cdb->byte2 & SVFY_DPO) 9187 flags |= CTL_LLF_DPO; 9188 lba = scsi_4btoul(cdb->addr); 9189 num_blocks = scsi_4btoul(cdb->length); 9190 break; 9191 } 9192 case VERIFY_16: { 9193 struct scsi_rw_16 *cdb; 9194 9195 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9196 if (cdb->byte2 & SVFY_BYTCHK) 9197 bytchk = 1; 9198 if (cdb->byte2 & SVFY_DPO) 9199 flags |= CTL_LLF_DPO; 9200 lba = scsi_8btou64(cdb->addr); 9201 num_blocks = scsi_4btoul(cdb->length); 9202 break; 9203 } 9204 default: 9205 /* 9206 * We got a command we don't support. This shouldn't 9207 * happen, commands should be filtered out above us. 9208 */ 9209 ctl_set_invalid_opcode(ctsio); 9210 ctl_done((union ctl_io *)ctsio); 9211 return (CTL_RETVAL_COMPLETE); 9212 } 9213 9214 /* 9215 * The first check is to make sure we're in bounds, the second 9216 * check is to catch wrap-around problems. If the lba + num blocks 9217 * is less than the lba, then we've wrapped around and the block 9218 * range is invalid anyway. 9219 */ 9220 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9221 || ((lba + num_blocks) < lba)) { 9222 ctl_set_lba_out_of_range(ctsio); 9223 ctl_done((union ctl_io *)ctsio); 9224 return (CTL_RETVAL_COMPLETE); 9225 } 9226 9227 /* 9228 * According to SBC-3, a transfer length of 0 is not an error. 9229 */ 9230 if (num_blocks == 0) { 9231 ctl_set_success(ctsio); 9232 ctl_done((union ctl_io *)ctsio); 9233 return (CTL_RETVAL_COMPLETE); 9234 } 9235 9236 lbalen = (struct ctl_lba_len_flags *) 9237 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9238 lbalen->lba = lba; 9239 lbalen->len = num_blocks; 9240 if (bytchk) { 9241 lbalen->flags = CTL_LLF_COMPARE | flags; 9242 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9243 } else { 9244 lbalen->flags = CTL_LLF_VERIFY | flags; 9245 ctsio->kern_total_len = 0; 9246 } 9247 ctsio->kern_rel_offset = 0; 9248 9249 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9250 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9251 return (retval); 9252} 9253 9254int 9255ctl_report_luns(struct ctl_scsiio *ctsio) 9256{ 9257 struct ctl_softc *softc = control_softc; 9258 struct scsi_report_luns *cdb; 9259 struct scsi_report_luns_data *lun_data; 9260 struct ctl_lun *lun, *request_lun; 9261 int num_luns, retval; 9262 uint32_t alloc_len, lun_datalen; 9263 int num_filled, well_known; 9264 uint32_t initidx, targ_lun_id, lun_id; 9265 9266 retval = CTL_RETVAL_COMPLETE; 9267 well_known = 0; 9268 9269 cdb = (struct scsi_report_luns *)ctsio->cdb; 9270 9271 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9272 9273 mtx_lock(&softc->ctl_lock); 9274 num_luns = softc->num_luns; 9275 mtx_unlock(&softc->ctl_lock); 9276 9277 switch (cdb->select_report) { 9278 case RPL_REPORT_DEFAULT: 9279 case RPL_REPORT_ALL: 9280 break; 9281 case RPL_REPORT_WELLKNOWN: 9282 well_known = 1; 9283 num_luns = 0; 9284 break; 9285 default: 9286 ctl_set_invalid_field(ctsio, 9287 /*sks_valid*/ 1, 9288 /*command*/ 1, 9289 /*field*/ 2, 9290 /*bit_valid*/ 0, 9291 /*bit*/ 0); 9292 ctl_done((union ctl_io *)ctsio); 9293 return (retval); 9294 break; /* NOTREACHED */ 9295 } 9296 9297 alloc_len = scsi_4btoul(cdb->length); 9298 /* 9299 * The initiator has to allocate at least 16 bytes for this request, 9300 * so he can at least get the header and the first LUN. Otherwise 9301 * we reject the request (per SPC-3 rev 14, section 6.21). 9302 */ 9303 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9304 sizeof(struct scsi_report_luns_lundata))) { 9305 ctl_set_invalid_field(ctsio, 9306 /*sks_valid*/ 1, 9307 /*command*/ 1, 9308 /*field*/ 6, 9309 /*bit_valid*/ 0, 9310 /*bit*/ 0); 9311 ctl_done((union ctl_io *)ctsio); 9312 return (retval); 9313 } 9314 9315 request_lun = (struct ctl_lun *) 9316 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9317 9318 lun_datalen = sizeof(*lun_data) + 9319 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9320 9321 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9322 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9323 ctsio->kern_sg_entries = 0; 9324 9325 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9326 9327 mtx_lock(&softc->ctl_lock); 9328 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9329 lun_id = ctl_map_lun(softc, ctsio->io_hdr.nexus.targ_port, 9330 targ_lun_id); 9331 if (lun_id >= CTL_MAX_LUNS) 9332 continue; 9333 lun = softc->ctl_luns[lun_id]; 9334 if (lun == NULL) 9335 continue; 9336 9337 if (targ_lun_id <= 0xff) { 9338 /* 9339 * Peripheral addressing method, bus number 0. 9340 */ 9341 lun_data->luns[num_filled].lundata[0] = 9342 RPL_LUNDATA_ATYP_PERIPH; 9343 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9344 num_filled++; 9345 } else if (targ_lun_id <= 0x3fff) { 9346 /* 9347 * Flat addressing method. 9348 */ 9349 lun_data->luns[num_filled].lundata[0] = 9350 RPL_LUNDATA_ATYP_FLAT | (targ_lun_id >> 8); 9351 lun_data->luns[num_filled].lundata[1] = 9352 (targ_lun_id & 0xff); 9353 num_filled++; 9354 } else if (targ_lun_id <= 0xffffff) { 9355 /* 9356 * Extended flat addressing method. 9357 */ 9358 lun_data->luns[num_filled].lundata[0] = 9359 RPL_LUNDATA_ATYP_EXTLUN | 0x12; 9360 scsi_ulto3b(targ_lun_id, 9361 &lun_data->luns[num_filled].lundata[1]); 9362 num_filled++; 9363 } else { 9364 printf("ctl_report_luns: bogus LUN number %jd, " 9365 "skipping\n", (intmax_t)targ_lun_id); 9366 } 9367 /* 9368 * According to SPC-3, rev 14 section 6.21: 9369 * 9370 * "The execution of a REPORT LUNS command to any valid and 9371 * installed logical unit shall clear the REPORTED LUNS DATA 9372 * HAS CHANGED unit attention condition for all logical 9373 * units of that target with respect to the requesting 9374 * initiator. A valid and installed logical unit is one 9375 * having a PERIPHERAL QUALIFIER of 000b in the standard 9376 * INQUIRY data (see 6.4.2)." 9377 * 9378 * If request_lun is NULL, the LUN this report luns command 9379 * was issued to is either disabled or doesn't exist. In that 9380 * case, we shouldn't clear any pending lun change unit 9381 * attention. 9382 */ 9383 if (request_lun != NULL) { 9384 mtx_lock(&lun->lun_lock); 9385 ctl_clr_ua(lun, initidx, CTL_UA_RES_RELEASE); 9386 mtx_unlock(&lun->lun_lock); 9387 } 9388 } 9389 mtx_unlock(&softc->ctl_lock); 9390 9391 /* 9392 * It's quite possible that we've returned fewer LUNs than we allocated 9393 * space for. Trim it. 9394 */ 9395 lun_datalen = sizeof(*lun_data) + 9396 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9397 9398 if (lun_datalen < alloc_len) { 9399 ctsio->residual = alloc_len - lun_datalen; 9400 ctsio->kern_data_len = lun_datalen; 9401 ctsio->kern_total_len = lun_datalen; 9402 } else { 9403 ctsio->residual = 0; 9404 ctsio->kern_data_len = alloc_len; 9405 ctsio->kern_total_len = alloc_len; 9406 } 9407 ctsio->kern_data_resid = 0; 9408 ctsio->kern_rel_offset = 0; 9409 ctsio->kern_sg_entries = 0; 9410 9411 /* 9412 * We set this to the actual data length, regardless of how much 9413 * space we actually have to return results. If the user looks at 9414 * this value, he'll know whether or not he allocated enough space 9415 * and reissue the command if necessary. We don't support well 9416 * known logical units, so if the user asks for that, return none. 9417 */ 9418 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9419 9420 /* 9421 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9422 * this request. 9423 */ 9424 ctl_set_success(ctsio); 9425 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9426 ctsio->be_move_done = ctl_config_move_done; 9427 ctl_datamove((union ctl_io *)ctsio); 9428 return (retval); 9429} 9430 9431int 9432ctl_request_sense(struct ctl_scsiio *ctsio) 9433{ 9434 struct scsi_request_sense *cdb; 9435 struct scsi_sense_data *sense_ptr; 9436 struct ctl_lun *lun; 9437 uint32_t initidx; 9438 int have_error; 9439 scsi_sense_data_type sense_format; 9440 ctl_ua_type ua_type; 9441 9442 cdb = (struct scsi_request_sense *)ctsio->cdb; 9443 9444 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9445 9446 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9447 9448 /* 9449 * Determine which sense format the user wants. 9450 */ 9451 if (cdb->byte2 & SRS_DESC) 9452 sense_format = SSD_TYPE_DESC; 9453 else 9454 sense_format = SSD_TYPE_FIXED; 9455 9456 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9457 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9458 ctsio->kern_sg_entries = 0; 9459 9460 /* 9461 * struct scsi_sense_data, which is currently set to 256 bytes, is 9462 * larger than the largest allowed value for the length field in the 9463 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9464 */ 9465 ctsio->residual = 0; 9466 ctsio->kern_data_len = cdb->length; 9467 ctsio->kern_total_len = cdb->length; 9468 9469 ctsio->kern_data_resid = 0; 9470 ctsio->kern_rel_offset = 0; 9471 ctsio->kern_sg_entries = 0; 9472 9473 /* 9474 * If we don't have a LUN, we don't have any pending sense. 9475 */ 9476 if (lun == NULL) 9477 goto no_sense; 9478 9479 have_error = 0; 9480 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9481 /* 9482 * Check for pending sense, and then for pending unit attentions. 9483 * Pending sense gets returned first, then pending unit attentions. 9484 */ 9485 mtx_lock(&lun->lun_lock); 9486#ifdef CTL_WITH_CA 9487 if (ctl_is_set(lun->have_ca, initidx)) { 9488 scsi_sense_data_type stored_format; 9489 9490 /* 9491 * Check to see which sense format was used for the stored 9492 * sense data. 9493 */ 9494 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9495 9496 /* 9497 * If the user requested a different sense format than the 9498 * one we stored, then we need to convert it to the other 9499 * format. If we're going from descriptor to fixed format 9500 * sense data, we may lose things in translation, depending 9501 * on what options were used. 9502 * 9503 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9504 * for some reason we'll just copy it out as-is. 9505 */ 9506 if ((stored_format == SSD_TYPE_FIXED) 9507 && (sense_format == SSD_TYPE_DESC)) 9508 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9509 &lun->pending_sense[initidx], 9510 (struct scsi_sense_data_desc *)sense_ptr); 9511 else if ((stored_format == SSD_TYPE_DESC) 9512 && (sense_format == SSD_TYPE_FIXED)) 9513 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9514 &lun->pending_sense[initidx], 9515 (struct scsi_sense_data_fixed *)sense_ptr); 9516 else 9517 memcpy(sense_ptr, &lun->pending_sense[initidx], 9518 MIN(sizeof(*sense_ptr), 9519 sizeof(lun->pending_sense[initidx]))); 9520 9521 ctl_clear_mask(lun->have_ca, initidx); 9522 have_error = 1; 9523 } else 9524#endif 9525 { 9526 ua_type = ctl_build_ua(lun, initidx, sense_ptr, sense_format); 9527 if (ua_type != CTL_UA_NONE) 9528 have_error = 1; 9529 } 9530 mtx_unlock(&lun->lun_lock); 9531 9532 /* 9533 * We already have a pending error, return it. 9534 */ 9535 if (have_error != 0) { 9536 /* 9537 * We report the SCSI status as OK, since the status of the 9538 * request sense command itself is OK. 9539 * We report 0 for the sense length, because we aren't doing 9540 * autosense in this case. We're reporting sense as 9541 * parameter data. 9542 */ 9543 ctl_set_success(ctsio); 9544 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9545 ctsio->be_move_done = ctl_config_move_done; 9546 ctl_datamove((union ctl_io *)ctsio); 9547 return (CTL_RETVAL_COMPLETE); 9548 } 9549 9550no_sense: 9551 9552 /* 9553 * No sense information to report, so we report that everything is 9554 * okay. 9555 */ 9556 ctl_set_sense_data(sense_ptr, 9557 lun, 9558 sense_format, 9559 /*current_error*/ 1, 9560 /*sense_key*/ SSD_KEY_NO_SENSE, 9561 /*asc*/ 0x00, 9562 /*ascq*/ 0x00, 9563 SSD_ELEM_NONE); 9564 9565 /* 9566 * We report 0 for the sense length, because we aren't doing 9567 * autosense in this case. We're reporting sense as parameter data. 9568 */ 9569 ctl_set_success(ctsio); 9570 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9571 ctsio->be_move_done = ctl_config_move_done; 9572 ctl_datamove((union ctl_io *)ctsio); 9573 return (CTL_RETVAL_COMPLETE); 9574} 9575 9576int 9577ctl_tur(struct ctl_scsiio *ctsio) 9578{ 9579 9580 CTL_DEBUG_PRINT(("ctl_tur\n")); 9581 9582 ctl_set_success(ctsio); 9583 ctl_done((union ctl_io *)ctsio); 9584 9585 return (CTL_RETVAL_COMPLETE); 9586} 9587 9588#ifdef notyet 9589static int 9590ctl_cmddt_inquiry(struct ctl_scsiio *ctsio) 9591{ 9592 9593} 9594#endif 9595 9596static int 9597ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9598{ 9599 struct scsi_vpd_supported_pages *pages; 9600 int sup_page_size; 9601 struct ctl_lun *lun; 9602 9603 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9604 9605 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9606 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9607 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9608 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9609 ctsio->kern_sg_entries = 0; 9610 9611 if (sup_page_size < alloc_len) { 9612 ctsio->residual = alloc_len - sup_page_size; 9613 ctsio->kern_data_len = sup_page_size; 9614 ctsio->kern_total_len = sup_page_size; 9615 } else { 9616 ctsio->residual = 0; 9617 ctsio->kern_data_len = alloc_len; 9618 ctsio->kern_total_len = alloc_len; 9619 } 9620 ctsio->kern_data_resid = 0; 9621 ctsio->kern_rel_offset = 0; 9622 ctsio->kern_sg_entries = 0; 9623 9624 /* 9625 * The control device is always connected. The disk device, on the 9626 * other hand, may not be online all the time. Need to change this 9627 * to figure out whether the disk device is actually online or not. 9628 */ 9629 if (lun != NULL) 9630 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9631 lun->be_lun->lun_type; 9632 else 9633 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9634 9635 pages->length = SCSI_EVPD_NUM_SUPPORTED_PAGES; 9636 /* Supported VPD pages */ 9637 pages->page_list[0] = SVPD_SUPPORTED_PAGES; 9638 /* Serial Number */ 9639 pages->page_list[1] = SVPD_UNIT_SERIAL_NUMBER; 9640 /* Device Identification */ 9641 pages->page_list[2] = SVPD_DEVICE_ID; 9642 /* Extended INQUIRY Data */ 9643 pages->page_list[3] = SVPD_EXTENDED_INQUIRY_DATA; 9644 /* Mode Page Policy */ 9645 pages->page_list[4] = SVPD_MODE_PAGE_POLICY; 9646 /* SCSI Ports */ 9647 pages->page_list[5] = SVPD_SCSI_PORTS; 9648 /* Third-party Copy */ 9649 pages->page_list[6] = SVPD_SCSI_TPC; 9650 /* Block limits */ 9651 pages->page_list[7] = SVPD_BLOCK_LIMITS; 9652 /* Block Device Characteristics */ 9653 pages->page_list[8] = SVPD_BDC; 9654 /* Logical Block Provisioning */ 9655 pages->page_list[9] = SVPD_LBP; 9656 9657 ctl_set_success(ctsio); 9658 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9659 ctsio->be_move_done = ctl_config_move_done; 9660 ctl_datamove((union ctl_io *)ctsio); 9661 return (CTL_RETVAL_COMPLETE); 9662} 9663 9664static int 9665ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9666{ 9667 struct scsi_vpd_unit_serial_number *sn_ptr; 9668 struct ctl_lun *lun; 9669 int data_len; 9670 9671 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9672 9673 data_len = 4 + CTL_SN_LEN; 9674 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9675 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9676 if (data_len < alloc_len) { 9677 ctsio->residual = alloc_len - data_len; 9678 ctsio->kern_data_len = data_len; 9679 ctsio->kern_total_len = data_len; 9680 } else { 9681 ctsio->residual = 0; 9682 ctsio->kern_data_len = alloc_len; 9683 ctsio->kern_total_len = alloc_len; 9684 } 9685 ctsio->kern_data_resid = 0; 9686 ctsio->kern_rel_offset = 0; 9687 ctsio->kern_sg_entries = 0; 9688 9689 /* 9690 * The control device is always connected. The disk device, on the 9691 * other hand, may not be online all the time. Need to change this 9692 * to figure out whether the disk device is actually online or not. 9693 */ 9694 if (lun != NULL) 9695 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9696 lun->be_lun->lun_type; 9697 else 9698 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9699 9700 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9701 sn_ptr->length = CTL_SN_LEN; 9702 /* 9703 * If we don't have a LUN, we just leave the serial number as 9704 * all spaces. 9705 */ 9706 if (lun != NULL) { 9707 strncpy((char *)sn_ptr->serial_num, 9708 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9709 } else 9710 memset(sn_ptr->serial_num, 0x20, CTL_SN_LEN); 9711 9712 ctl_set_success(ctsio); 9713 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9714 ctsio->be_move_done = ctl_config_move_done; 9715 ctl_datamove((union ctl_io *)ctsio); 9716 return (CTL_RETVAL_COMPLETE); 9717} 9718 9719 9720static int 9721ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9722{ 9723 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9724 struct ctl_lun *lun; 9725 int data_len; 9726 9727 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9728 9729 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9730 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9731 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9732 ctsio->kern_sg_entries = 0; 9733 9734 if (data_len < alloc_len) { 9735 ctsio->residual = alloc_len - data_len; 9736 ctsio->kern_data_len = data_len; 9737 ctsio->kern_total_len = data_len; 9738 } else { 9739 ctsio->residual = 0; 9740 ctsio->kern_data_len = alloc_len; 9741 ctsio->kern_total_len = alloc_len; 9742 } 9743 ctsio->kern_data_resid = 0; 9744 ctsio->kern_rel_offset = 0; 9745 ctsio->kern_sg_entries = 0; 9746 9747 /* 9748 * The control device is always connected. The disk device, on the 9749 * other hand, may not be online all the time. 9750 */ 9751 if (lun != NULL) 9752 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9753 lun->be_lun->lun_type; 9754 else 9755 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9756 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9757 eid_ptr->page_length = data_len - 4; 9758 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9759 eid_ptr->flags3 = SVPD_EID_V_SUP; 9760 9761 ctl_set_success(ctsio); 9762 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9763 ctsio->be_move_done = ctl_config_move_done; 9764 ctl_datamove((union ctl_io *)ctsio); 9765 return (CTL_RETVAL_COMPLETE); 9766} 9767 9768static int 9769ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9770{ 9771 struct scsi_vpd_mode_page_policy *mpp_ptr; 9772 struct ctl_lun *lun; 9773 int data_len; 9774 9775 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9776 9777 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9778 sizeof(struct scsi_vpd_mode_page_policy_descr); 9779 9780 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9781 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9782 ctsio->kern_sg_entries = 0; 9783 9784 if (data_len < alloc_len) { 9785 ctsio->residual = alloc_len - data_len; 9786 ctsio->kern_data_len = data_len; 9787 ctsio->kern_total_len = data_len; 9788 } else { 9789 ctsio->residual = 0; 9790 ctsio->kern_data_len = alloc_len; 9791 ctsio->kern_total_len = alloc_len; 9792 } 9793 ctsio->kern_data_resid = 0; 9794 ctsio->kern_rel_offset = 0; 9795 ctsio->kern_sg_entries = 0; 9796 9797 /* 9798 * The control device is always connected. The disk device, on the 9799 * other hand, may not be online all the time. 9800 */ 9801 if (lun != NULL) 9802 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9803 lun->be_lun->lun_type; 9804 else 9805 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9806 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9807 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9808 mpp_ptr->descr[0].page_code = 0x3f; 9809 mpp_ptr->descr[0].subpage_code = 0xff; 9810 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9811 9812 ctl_set_success(ctsio); 9813 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9814 ctsio->be_move_done = ctl_config_move_done; 9815 ctl_datamove((union ctl_io *)ctsio); 9816 return (CTL_RETVAL_COMPLETE); 9817} 9818 9819static int 9820ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9821{ 9822 struct scsi_vpd_device_id *devid_ptr; 9823 struct scsi_vpd_id_descriptor *desc; 9824 struct ctl_softc *softc; 9825 struct ctl_lun *lun; 9826 struct ctl_port *port; 9827 int data_len; 9828 uint8_t proto; 9829 9830 softc = control_softc; 9831 9832 port = softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]; 9833 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9834 9835 data_len = sizeof(struct scsi_vpd_device_id) + 9836 sizeof(struct scsi_vpd_id_descriptor) + 9837 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9838 sizeof(struct scsi_vpd_id_descriptor) + 9839 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9840 if (lun && lun->lun_devid) 9841 data_len += lun->lun_devid->len; 9842 if (port->port_devid) 9843 data_len += port->port_devid->len; 9844 if (port->target_devid) 9845 data_len += port->target_devid->len; 9846 9847 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9848 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9849 ctsio->kern_sg_entries = 0; 9850 9851 if (data_len < alloc_len) { 9852 ctsio->residual = alloc_len - data_len; 9853 ctsio->kern_data_len = data_len; 9854 ctsio->kern_total_len = data_len; 9855 } else { 9856 ctsio->residual = 0; 9857 ctsio->kern_data_len = alloc_len; 9858 ctsio->kern_total_len = alloc_len; 9859 } 9860 ctsio->kern_data_resid = 0; 9861 ctsio->kern_rel_offset = 0; 9862 ctsio->kern_sg_entries = 0; 9863 9864 /* 9865 * The control device is always connected. The disk device, on the 9866 * other hand, may not be online all the time. 9867 */ 9868 if (lun != NULL) 9869 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9870 lun->be_lun->lun_type; 9871 else 9872 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9873 devid_ptr->page_code = SVPD_DEVICE_ID; 9874 scsi_ulto2b(data_len - 4, devid_ptr->length); 9875 9876 if (port->port_type == CTL_PORT_FC) 9877 proto = SCSI_PROTO_FC << 4; 9878 else if (port->port_type == CTL_PORT_ISCSI) 9879 proto = SCSI_PROTO_ISCSI << 4; 9880 else 9881 proto = SCSI_PROTO_SPI << 4; 9882 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9883 9884 /* 9885 * We're using a LUN association here. i.e., this device ID is a 9886 * per-LUN identifier. 9887 */ 9888 if (lun && lun->lun_devid) { 9889 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9890 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9891 lun->lun_devid->len); 9892 } 9893 9894 /* 9895 * This is for the WWPN which is a port association. 9896 */ 9897 if (port->port_devid) { 9898 memcpy(desc, port->port_devid->data, port->port_devid->len); 9899 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9900 port->port_devid->len); 9901 } 9902 9903 /* 9904 * This is for the Relative Target Port(type 4h) identifier 9905 */ 9906 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9907 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9908 SVPD_ID_TYPE_RELTARG; 9909 desc->length = 4; 9910 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9911 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9912 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9913 9914 /* 9915 * This is for the Target Port Group(type 5h) identifier 9916 */ 9917 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9918 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9919 SVPD_ID_TYPE_TPORTGRP; 9920 desc->length = 4; 9921 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS + 1, 9922 &desc->identifier[2]); 9923 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9924 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9925 9926 /* 9927 * This is for the Target identifier 9928 */ 9929 if (port->target_devid) { 9930 memcpy(desc, port->target_devid->data, port->target_devid->len); 9931 } 9932 9933 ctl_set_success(ctsio); 9934 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9935 ctsio->be_move_done = ctl_config_move_done; 9936 ctl_datamove((union ctl_io *)ctsio); 9937 return (CTL_RETVAL_COMPLETE); 9938} 9939 9940static int 9941ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 9942{ 9943 struct ctl_softc *softc = control_softc; 9944 struct scsi_vpd_scsi_ports *sp; 9945 struct scsi_vpd_port_designation *pd; 9946 struct scsi_vpd_port_designation_cont *pdc; 9947 struct ctl_lun *lun; 9948 struct ctl_port *port; 9949 int data_len, num_target_ports, iid_len, id_len, g, pg, p; 9950 int num_target_port_groups; 9951 9952 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9953 9954 if (softc->is_single) 9955 num_target_port_groups = 1; 9956 else 9957 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 9958 num_target_ports = 0; 9959 iid_len = 0; 9960 id_len = 0; 9961 mtx_lock(&softc->ctl_lock); 9962 STAILQ_FOREACH(port, &softc->port_list, links) { 9963 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9964 continue; 9965 if (lun != NULL && 9966 ctl_map_lun_back(softc, port->targ_port, lun->lun) >= 9967 CTL_MAX_LUNS) 9968 continue; 9969 num_target_ports++; 9970 if (port->init_devid) 9971 iid_len += port->init_devid->len; 9972 if (port->port_devid) 9973 id_len += port->port_devid->len; 9974 } 9975 mtx_unlock(&softc->ctl_lock); 9976 9977 data_len = sizeof(struct scsi_vpd_scsi_ports) + num_target_port_groups * 9978 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 9979 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 9980 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9981 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 9982 ctsio->kern_sg_entries = 0; 9983 9984 if (data_len < alloc_len) { 9985 ctsio->residual = alloc_len - data_len; 9986 ctsio->kern_data_len = data_len; 9987 ctsio->kern_total_len = data_len; 9988 } else { 9989 ctsio->residual = 0; 9990 ctsio->kern_data_len = alloc_len; 9991 ctsio->kern_total_len = alloc_len; 9992 } 9993 ctsio->kern_data_resid = 0; 9994 ctsio->kern_rel_offset = 0; 9995 ctsio->kern_sg_entries = 0; 9996 9997 /* 9998 * The control device is always connected. The disk device, on the 9999 * other hand, may not be online all the time. Need to change this 10000 * to figure out whether the disk device is actually online or not. 10001 */ 10002 if (lun != NULL) 10003 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 10004 lun->be_lun->lun_type; 10005 else 10006 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10007 10008 sp->page_code = SVPD_SCSI_PORTS; 10009 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 10010 sp->page_length); 10011 pd = &sp->design[0]; 10012 10013 mtx_lock(&softc->ctl_lock); 10014 pg = softc->port_offset / CTL_MAX_PORTS; 10015 for (g = 0; g < num_target_port_groups; g++) { 10016 STAILQ_FOREACH(port, &softc->port_list, links) { 10017 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10018 continue; 10019 if (lun != NULL && 10020 ctl_map_lun_back(softc, port->targ_port, lun->lun) 10021 >= CTL_MAX_LUNS) 10022 continue; 10023 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 10024 scsi_ulto2b(p, pd->relative_port_id); 10025 if (port->init_devid && g == pg) { 10026 iid_len = port->init_devid->len; 10027 memcpy(pd->initiator_transportid, 10028 port->init_devid->data, port->init_devid->len); 10029 } else 10030 iid_len = 0; 10031 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 10032 pdc = (struct scsi_vpd_port_designation_cont *) 10033 (&pd->initiator_transportid[iid_len]); 10034 if (port->port_devid && g == pg) { 10035 id_len = port->port_devid->len; 10036 memcpy(pdc->target_port_descriptors, 10037 port->port_devid->data, port->port_devid->len); 10038 } else 10039 id_len = 0; 10040 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 10041 pd = (struct scsi_vpd_port_designation *) 10042 ((uint8_t *)pdc->target_port_descriptors + id_len); 10043 } 10044 } 10045 mtx_unlock(&softc->ctl_lock); 10046 10047 ctl_set_success(ctsio); 10048 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10049 ctsio->be_move_done = ctl_config_move_done; 10050 ctl_datamove((union ctl_io *)ctsio); 10051 return (CTL_RETVAL_COMPLETE); 10052} 10053 10054static int 10055ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 10056{ 10057 struct scsi_vpd_block_limits *bl_ptr; 10058 struct ctl_lun *lun; 10059 int bs; 10060 10061 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10062 10063 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 10064 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 10065 ctsio->kern_sg_entries = 0; 10066 10067 if (sizeof(*bl_ptr) < alloc_len) { 10068 ctsio->residual = alloc_len - sizeof(*bl_ptr); 10069 ctsio->kern_data_len = sizeof(*bl_ptr); 10070 ctsio->kern_total_len = sizeof(*bl_ptr); 10071 } else { 10072 ctsio->residual = 0; 10073 ctsio->kern_data_len = alloc_len; 10074 ctsio->kern_total_len = alloc_len; 10075 } 10076 ctsio->kern_data_resid = 0; 10077 ctsio->kern_rel_offset = 0; 10078 ctsio->kern_sg_entries = 0; 10079 10080 /* 10081 * The control device is always connected. The disk device, on the 10082 * other hand, may not be online all the time. Need to change this 10083 * to figure out whether the disk device is actually online or not. 10084 */ 10085 if (lun != NULL) 10086 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10087 lun->be_lun->lun_type; 10088 else 10089 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10090 10091 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 10092 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 10093 bl_ptr->max_cmp_write_len = 0xff; 10094 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 10095 if (lun != NULL) { 10096 bs = lun->be_lun->blocksize; 10097 scsi_ulto4b(lun->be_lun->opttxferlen, bl_ptr->opt_txfer_len); 10098 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10099 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 10100 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 10101 if (lun->be_lun->ublockexp != 0) { 10102 scsi_ulto4b((1 << lun->be_lun->ublockexp), 10103 bl_ptr->opt_unmap_grain); 10104 scsi_ulto4b(0x80000000 | lun->be_lun->ublockoff, 10105 bl_ptr->unmap_grain_align); 10106 } 10107 } 10108 scsi_ulto4b(lun->be_lun->atomicblock, 10109 bl_ptr->max_atomic_transfer_length); 10110 scsi_ulto4b(0, bl_ptr->atomic_alignment); 10111 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 10112 } 10113 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 10114 10115 ctl_set_success(ctsio); 10116 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10117 ctsio->be_move_done = ctl_config_move_done; 10118 ctl_datamove((union ctl_io *)ctsio); 10119 return (CTL_RETVAL_COMPLETE); 10120} 10121 10122static int 10123ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 10124{ 10125 struct scsi_vpd_block_device_characteristics *bdc_ptr; 10126 struct ctl_lun *lun; 10127 const char *value; 10128 u_int i; 10129 10130 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10131 10132 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 10133 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 10134 ctsio->kern_sg_entries = 0; 10135 10136 if (sizeof(*bdc_ptr) < alloc_len) { 10137 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 10138 ctsio->kern_data_len = sizeof(*bdc_ptr); 10139 ctsio->kern_total_len = sizeof(*bdc_ptr); 10140 } else { 10141 ctsio->residual = 0; 10142 ctsio->kern_data_len = alloc_len; 10143 ctsio->kern_total_len = alloc_len; 10144 } 10145 ctsio->kern_data_resid = 0; 10146 ctsio->kern_rel_offset = 0; 10147 ctsio->kern_sg_entries = 0; 10148 10149 /* 10150 * The control device is always connected. The disk device, on the 10151 * other hand, may not be online all the time. Need to change this 10152 * to figure out whether the disk device is actually online or not. 10153 */ 10154 if (lun != NULL) 10155 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10156 lun->be_lun->lun_type; 10157 else 10158 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10159 bdc_ptr->page_code = SVPD_BDC; 10160 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 10161 if (lun != NULL && 10162 (value = ctl_get_opt(&lun->be_lun->options, "rpm")) != NULL) 10163 i = strtol(value, NULL, 0); 10164 else 10165 i = CTL_DEFAULT_ROTATION_RATE; 10166 scsi_ulto2b(i, bdc_ptr->medium_rotation_rate); 10167 if (lun != NULL && 10168 (value = ctl_get_opt(&lun->be_lun->options, "formfactor")) != NULL) 10169 i = strtol(value, NULL, 0); 10170 else 10171 i = 0; 10172 bdc_ptr->wab_wac_ff = (i & 0x0f); 10173 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 10174 10175 ctl_set_success(ctsio); 10176 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10177 ctsio->be_move_done = ctl_config_move_done; 10178 ctl_datamove((union ctl_io *)ctsio); 10179 return (CTL_RETVAL_COMPLETE); 10180} 10181 10182static int 10183ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10184{ 10185 struct scsi_vpd_logical_block_prov *lbp_ptr; 10186 struct ctl_lun *lun; 10187 10188 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10189 10190 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10191 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10192 ctsio->kern_sg_entries = 0; 10193 10194 if (sizeof(*lbp_ptr) < alloc_len) { 10195 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10196 ctsio->kern_data_len = sizeof(*lbp_ptr); 10197 ctsio->kern_total_len = sizeof(*lbp_ptr); 10198 } else { 10199 ctsio->residual = 0; 10200 ctsio->kern_data_len = alloc_len; 10201 ctsio->kern_total_len = alloc_len; 10202 } 10203 ctsio->kern_data_resid = 0; 10204 ctsio->kern_rel_offset = 0; 10205 ctsio->kern_sg_entries = 0; 10206 10207 /* 10208 * The control device is always connected. The disk device, on the 10209 * other hand, may not be online all the time. Need to change this 10210 * to figure out whether the disk device is actually online or not. 10211 */ 10212 if (lun != NULL) 10213 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10214 lun->be_lun->lun_type; 10215 else 10216 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10217 10218 lbp_ptr->page_code = SVPD_LBP; 10219 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10220 lbp_ptr->threshold_exponent = CTL_LBP_EXPONENT; 10221 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10222 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10223 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10224 lbp_ptr->prov_type = SVPD_LBP_THIN; 10225 } 10226 10227 ctl_set_success(ctsio); 10228 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10229 ctsio->be_move_done = ctl_config_move_done; 10230 ctl_datamove((union ctl_io *)ctsio); 10231 return (CTL_RETVAL_COMPLETE); 10232} 10233 10234static int 10235ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10236{ 10237 struct scsi_inquiry *cdb; 10238 int alloc_len, retval; 10239 10240 cdb = (struct scsi_inquiry *)ctsio->cdb; 10241 10242 retval = CTL_RETVAL_COMPLETE; 10243 10244 alloc_len = scsi_2btoul(cdb->length); 10245 10246 switch (cdb->page_code) { 10247 case SVPD_SUPPORTED_PAGES: 10248 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10249 break; 10250 case SVPD_UNIT_SERIAL_NUMBER: 10251 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10252 break; 10253 case SVPD_DEVICE_ID: 10254 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10255 break; 10256 case SVPD_EXTENDED_INQUIRY_DATA: 10257 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10258 break; 10259 case SVPD_MODE_PAGE_POLICY: 10260 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10261 break; 10262 case SVPD_SCSI_PORTS: 10263 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10264 break; 10265 case SVPD_SCSI_TPC: 10266 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10267 break; 10268 case SVPD_BLOCK_LIMITS: 10269 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10270 break; 10271 case SVPD_BDC: 10272 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10273 break; 10274 case SVPD_LBP: 10275 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10276 break; 10277 default: 10278 ctl_set_invalid_field(ctsio, 10279 /*sks_valid*/ 1, 10280 /*command*/ 1, 10281 /*field*/ 2, 10282 /*bit_valid*/ 0, 10283 /*bit*/ 0); 10284 ctl_done((union ctl_io *)ctsio); 10285 retval = CTL_RETVAL_COMPLETE; 10286 break; 10287 } 10288 10289 return (retval); 10290} 10291 10292static int 10293ctl_inquiry_std(struct ctl_scsiio *ctsio) 10294{ 10295 struct scsi_inquiry_data *inq_ptr; 10296 struct scsi_inquiry *cdb; 10297 struct ctl_softc *softc; 10298 struct ctl_lun *lun; 10299 char *val; 10300 uint32_t alloc_len, data_len; 10301 ctl_port_type port_type; 10302 10303 softc = control_softc; 10304 10305 /* 10306 * Figure out whether we're talking to a Fibre Channel port or not. 10307 * We treat the ioctl front end, and any SCSI adapters, as packetized 10308 * SCSI front ends. 10309 */ 10310 port_type = softc->ctl_ports[ 10311 ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]->port_type; 10312 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10313 port_type = CTL_PORT_SCSI; 10314 10315 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10316 cdb = (struct scsi_inquiry *)ctsio->cdb; 10317 alloc_len = scsi_2btoul(cdb->length); 10318 10319 /* 10320 * We malloc the full inquiry data size here and fill it 10321 * in. If the user only asks for less, we'll give him 10322 * that much. 10323 */ 10324 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10325 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10326 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10327 ctsio->kern_sg_entries = 0; 10328 ctsio->kern_data_resid = 0; 10329 ctsio->kern_rel_offset = 0; 10330 10331 if (data_len < alloc_len) { 10332 ctsio->residual = alloc_len - data_len; 10333 ctsio->kern_data_len = data_len; 10334 ctsio->kern_total_len = data_len; 10335 } else { 10336 ctsio->residual = 0; 10337 ctsio->kern_data_len = alloc_len; 10338 ctsio->kern_total_len = alloc_len; 10339 } 10340 10341 /* 10342 * If we have a LUN configured, report it as connected. Otherwise, 10343 * report that it is offline or no device is supported, depending 10344 * on the value of inquiry_pq_no_lun. 10345 * 10346 * According to the spec (SPC-4 r34), the peripheral qualifier 10347 * SID_QUAL_LU_OFFLINE (001b) is used in the following scenario: 10348 * 10349 * "A peripheral device having the specified peripheral device type 10350 * is not connected to this logical unit. However, the device 10351 * server is capable of supporting the specified peripheral device 10352 * type on this logical unit." 10353 * 10354 * According to the same spec, the peripheral qualifier 10355 * SID_QUAL_BAD_LU (011b) is used in this scenario: 10356 * 10357 * "The device server is not capable of supporting a peripheral 10358 * device on this logical unit. For this peripheral qualifier the 10359 * peripheral device type shall be set to 1Fh. All other peripheral 10360 * device type values are reserved for this peripheral qualifier." 10361 * 10362 * Given the text, it would seem that we probably want to report that 10363 * the LUN is offline here. There is no LUN connected, but we can 10364 * support a LUN at the given LUN number. 10365 * 10366 * In the real world, though, it sounds like things are a little 10367 * different: 10368 * 10369 * - Linux, when presented with a LUN with the offline peripheral 10370 * qualifier, will create an sg driver instance for it. So when 10371 * you attach it to CTL, you wind up with a ton of sg driver 10372 * instances. (One for every LUN that Linux bothered to probe.) 10373 * Linux does this despite the fact that it issues a REPORT LUNs 10374 * to LUN 0 to get the inventory of supported LUNs. 10375 * 10376 * - There is other anecdotal evidence (from Emulex folks) about 10377 * arrays that use the offline peripheral qualifier for LUNs that 10378 * are on the "passive" path in an active/passive array. 10379 * 10380 * So the solution is provide a hopefully reasonable default 10381 * (return bad/no LUN) and allow the user to change the behavior 10382 * with a tunable/sysctl variable. 10383 */ 10384 if (lun != NULL) 10385 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10386 lun->be_lun->lun_type; 10387 else if (softc->inquiry_pq_no_lun == 0) 10388 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10389 else 10390 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10391 10392 /* RMB in byte 2 is 0 */ 10393 inq_ptr->version = SCSI_REV_SPC4; 10394 10395 /* 10396 * According to SAM-3, even if a device only supports a single 10397 * level of LUN addressing, it should still set the HISUP bit: 10398 * 10399 * 4.9.1 Logical unit numbers overview 10400 * 10401 * All logical unit number formats described in this standard are 10402 * hierarchical in structure even when only a single level in that 10403 * hierarchy is used. The HISUP bit shall be set to one in the 10404 * standard INQUIRY data (see SPC-2) when any logical unit number 10405 * format described in this standard is used. Non-hierarchical 10406 * formats are outside the scope of this standard. 10407 * 10408 * Therefore we set the HiSup bit here. 10409 * 10410 * The reponse format is 2, per SPC-3. 10411 */ 10412 inq_ptr->response_format = SID_HiSup | 2; 10413 10414 inq_ptr->additional_length = data_len - 10415 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10416 CTL_DEBUG_PRINT(("additional_length = %d\n", 10417 inq_ptr->additional_length)); 10418 10419 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10420 /* 16 bit addressing */ 10421 if (port_type == CTL_PORT_SCSI) 10422 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10423 /* XXX set the SID_MultiP bit here if we're actually going to 10424 respond on multiple ports */ 10425 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10426 10427 /* 16 bit data bus, synchronous transfers */ 10428 if (port_type == CTL_PORT_SCSI) 10429 inq_ptr->flags = SID_WBus16 | SID_Sync; 10430 /* 10431 * XXX KDM do we want to support tagged queueing on the control 10432 * device at all? 10433 */ 10434 if ((lun == NULL) 10435 || (lun->be_lun->lun_type != T_PROCESSOR)) 10436 inq_ptr->flags |= SID_CmdQue; 10437 /* 10438 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10439 * We have 8 bytes for the vendor name, and 16 bytes for the device 10440 * name and 4 bytes for the revision. 10441 */ 10442 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10443 "vendor")) == NULL) { 10444 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10445 } else { 10446 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10447 strncpy(inq_ptr->vendor, val, 10448 min(sizeof(inq_ptr->vendor), strlen(val))); 10449 } 10450 if (lun == NULL) { 10451 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10452 sizeof(inq_ptr->product)); 10453 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10454 switch (lun->be_lun->lun_type) { 10455 case T_DIRECT: 10456 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10457 sizeof(inq_ptr->product)); 10458 break; 10459 case T_PROCESSOR: 10460 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10461 sizeof(inq_ptr->product)); 10462 break; 10463 default: 10464 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10465 sizeof(inq_ptr->product)); 10466 break; 10467 } 10468 } else { 10469 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10470 strncpy(inq_ptr->product, val, 10471 min(sizeof(inq_ptr->product), strlen(val))); 10472 } 10473 10474 /* 10475 * XXX make this a macro somewhere so it automatically gets 10476 * incremented when we make changes. 10477 */ 10478 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10479 "revision")) == NULL) { 10480 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10481 } else { 10482 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10483 strncpy(inq_ptr->revision, val, 10484 min(sizeof(inq_ptr->revision), strlen(val))); 10485 } 10486 10487 /* 10488 * For parallel SCSI, we support double transition and single 10489 * transition clocking. We also support QAS (Quick Arbitration 10490 * and Selection) and Information Unit transfers on both the 10491 * control and array devices. 10492 */ 10493 if (port_type == CTL_PORT_SCSI) 10494 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10495 SID_SPI_IUS; 10496 10497 /* SAM-5 (no version claimed) */ 10498 scsi_ulto2b(0x00A0, inq_ptr->version1); 10499 /* SPC-4 (no version claimed) */ 10500 scsi_ulto2b(0x0460, inq_ptr->version2); 10501 if (port_type == CTL_PORT_FC) { 10502 /* FCP-2 ANSI INCITS.350:2003 */ 10503 scsi_ulto2b(0x0917, inq_ptr->version3); 10504 } else if (port_type == CTL_PORT_SCSI) { 10505 /* SPI-4 ANSI INCITS.362:200x */ 10506 scsi_ulto2b(0x0B56, inq_ptr->version3); 10507 } else if (port_type == CTL_PORT_ISCSI) { 10508 /* iSCSI (no version claimed) */ 10509 scsi_ulto2b(0x0960, inq_ptr->version3); 10510 } else if (port_type == CTL_PORT_SAS) { 10511 /* SAS (no version claimed) */ 10512 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10513 } 10514 10515 if (lun == NULL) { 10516 /* SBC-4 (no version claimed) */ 10517 scsi_ulto2b(0x0600, inq_ptr->version4); 10518 } else { 10519 switch (lun->be_lun->lun_type) { 10520 case T_DIRECT: 10521 /* SBC-4 (no version claimed) */ 10522 scsi_ulto2b(0x0600, inq_ptr->version4); 10523 break; 10524 case T_PROCESSOR: 10525 default: 10526 break; 10527 } 10528 } 10529 10530 ctl_set_success(ctsio); 10531 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10532 ctsio->be_move_done = ctl_config_move_done; 10533 ctl_datamove((union ctl_io *)ctsio); 10534 return (CTL_RETVAL_COMPLETE); 10535} 10536 10537int 10538ctl_inquiry(struct ctl_scsiio *ctsio) 10539{ 10540 struct scsi_inquiry *cdb; 10541 int retval; 10542 10543 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10544 10545 cdb = (struct scsi_inquiry *)ctsio->cdb; 10546 if (cdb->byte2 & SI_EVPD) 10547 retval = ctl_inquiry_evpd(ctsio); 10548 else if (cdb->page_code == 0) 10549 retval = ctl_inquiry_std(ctsio); 10550 else { 10551 ctl_set_invalid_field(ctsio, 10552 /*sks_valid*/ 1, 10553 /*command*/ 1, 10554 /*field*/ 2, 10555 /*bit_valid*/ 0, 10556 /*bit*/ 0); 10557 ctl_done((union ctl_io *)ctsio); 10558 return (CTL_RETVAL_COMPLETE); 10559 } 10560 10561 return (retval); 10562} 10563 10564/* 10565 * For known CDB types, parse the LBA and length. 10566 */ 10567static int 10568ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10569{ 10570 if (io->io_hdr.io_type != CTL_IO_SCSI) 10571 return (1); 10572 10573 switch (io->scsiio.cdb[0]) { 10574 case COMPARE_AND_WRITE: { 10575 struct scsi_compare_and_write *cdb; 10576 10577 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10578 10579 *lba = scsi_8btou64(cdb->addr); 10580 *len = cdb->length; 10581 break; 10582 } 10583 case READ_6: 10584 case WRITE_6: { 10585 struct scsi_rw_6 *cdb; 10586 10587 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10588 10589 *lba = scsi_3btoul(cdb->addr); 10590 /* only 5 bits are valid in the most significant address byte */ 10591 *lba &= 0x1fffff; 10592 *len = cdb->length; 10593 break; 10594 } 10595 case READ_10: 10596 case WRITE_10: { 10597 struct scsi_rw_10 *cdb; 10598 10599 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10600 10601 *lba = scsi_4btoul(cdb->addr); 10602 *len = scsi_2btoul(cdb->length); 10603 break; 10604 } 10605 case WRITE_VERIFY_10: { 10606 struct scsi_write_verify_10 *cdb; 10607 10608 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10609 10610 *lba = scsi_4btoul(cdb->addr); 10611 *len = scsi_2btoul(cdb->length); 10612 break; 10613 } 10614 case READ_12: 10615 case WRITE_12: { 10616 struct scsi_rw_12 *cdb; 10617 10618 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10619 10620 *lba = scsi_4btoul(cdb->addr); 10621 *len = scsi_4btoul(cdb->length); 10622 break; 10623 } 10624 case WRITE_VERIFY_12: { 10625 struct scsi_write_verify_12 *cdb; 10626 10627 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10628 10629 *lba = scsi_4btoul(cdb->addr); 10630 *len = scsi_4btoul(cdb->length); 10631 break; 10632 } 10633 case READ_16: 10634 case WRITE_16: 10635 case WRITE_ATOMIC_16: { 10636 struct scsi_rw_16 *cdb; 10637 10638 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10639 10640 *lba = scsi_8btou64(cdb->addr); 10641 *len = scsi_4btoul(cdb->length); 10642 break; 10643 } 10644 case WRITE_VERIFY_16: { 10645 struct scsi_write_verify_16 *cdb; 10646 10647 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10648 10649 *lba = scsi_8btou64(cdb->addr); 10650 *len = scsi_4btoul(cdb->length); 10651 break; 10652 } 10653 case WRITE_SAME_10: { 10654 struct scsi_write_same_10 *cdb; 10655 10656 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10657 10658 *lba = scsi_4btoul(cdb->addr); 10659 *len = scsi_2btoul(cdb->length); 10660 break; 10661 } 10662 case WRITE_SAME_16: { 10663 struct scsi_write_same_16 *cdb; 10664 10665 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10666 10667 *lba = scsi_8btou64(cdb->addr); 10668 *len = scsi_4btoul(cdb->length); 10669 break; 10670 } 10671 case VERIFY_10: { 10672 struct scsi_verify_10 *cdb; 10673 10674 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10675 10676 *lba = scsi_4btoul(cdb->addr); 10677 *len = scsi_2btoul(cdb->length); 10678 break; 10679 } 10680 case VERIFY_12: { 10681 struct scsi_verify_12 *cdb; 10682 10683 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10684 10685 *lba = scsi_4btoul(cdb->addr); 10686 *len = scsi_4btoul(cdb->length); 10687 break; 10688 } 10689 case VERIFY_16: { 10690 struct scsi_verify_16 *cdb; 10691 10692 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10693 10694 *lba = scsi_8btou64(cdb->addr); 10695 *len = scsi_4btoul(cdb->length); 10696 break; 10697 } 10698 case UNMAP: { 10699 *lba = 0; 10700 *len = UINT64_MAX; 10701 break; 10702 } 10703 case SERVICE_ACTION_IN: { /* GET LBA STATUS */ 10704 struct scsi_get_lba_status *cdb; 10705 10706 cdb = (struct scsi_get_lba_status *)io->scsiio.cdb; 10707 *lba = scsi_8btou64(cdb->addr); 10708 *len = UINT32_MAX; 10709 break; 10710 } 10711 default: 10712 return (1); 10713 break; /* NOTREACHED */ 10714 } 10715 10716 return (0); 10717} 10718 10719static ctl_action 10720ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2, 10721 bool seq) 10722{ 10723 uint64_t endlba1, endlba2; 10724 10725 endlba1 = lba1 + len1 - (seq ? 0 : 1); 10726 endlba2 = lba2 + len2 - 1; 10727 10728 if ((endlba1 < lba2) || (endlba2 < lba1)) 10729 return (CTL_ACTION_PASS); 10730 else 10731 return (CTL_ACTION_BLOCK); 10732} 10733 10734static int 10735ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10736{ 10737 struct ctl_ptr_len_flags *ptrlen; 10738 struct scsi_unmap_desc *buf, *end, *range; 10739 uint64_t lba; 10740 uint32_t len; 10741 10742 /* If not UNMAP -- go other way. */ 10743 if (io->io_hdr.io_type != CTL_IO_SCSI || 10744 io->scsiio.cdb[0] != UNMAP) 10745 return (CTL_ACTION_ERROR); 10746 10747 /* If UNMAP without data -- block and wait for data. */ 10748 ptrlen = (struct ctl_ptr_len_flags *) 10749 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10750 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10751 ptrlen->ptr == NULL) 10752 return (CTL_ACTION_BLOCK); 10753 10754 /* UNMAP with data -- check for collision. */ 10755 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10756 end = buf + ptrlen->len / sizeof(*buf); 10757 for (range = buf; range < end; range++) { 10758 lba = scsi_8btou64(range->lba); 10759 len = scsi_4btoul(range->length); 10760 if ((lba < lba2 + len2) && (lba + len > lba2)) 10761 return (CTL_ACTION_BLOCK); 10762 } 10763 return (CTL_ACTION_PASS); 10764} 10765 10766static ctl_action 10767ctl_extent_check(union ctl_io *io1, union ctl_io *io2, bool seq) 10768{ 10769 uint64_t lba1, lba2; 10770 uint64_t len1, len2; 10771 int retval; 10772 10773 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10774 return (CTL_ACTION_ERROR); 10775 10776 retval = ctl_extent_check_unmap(io1, lba2, len2); 10777 if (retval != CTL_ACTION_ERROR) 10778 return (retval); 10779 10780 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10781 return (CTL_ACTION_ERROR); 10782 10783 return (ctl_extent_check_lba(lba1, len1, lba2, len2, seq)); 10784} 10785 10786static ctl_action 10787ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2) 10788{ 10789 uint64_t lba1, lba2; 10790 uint64_t len1, len2; 10791 10792 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10793 return (CTL_ACTION_ERROR); 10794 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10795 return (CTL_ACTION_ERROR); 10796 10797 if (lba1 + len1 == lba2) 10798 return (CTL_ACTION_BLOCK); 10799 return (CTL_ACTION_PASS); 10800} 10801 10802static ctl_action 10803ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10804 union ctl_io *ooa_io) 10805{ 10806 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10807 ctl_serialize_action *serialize_row; 10808 10809 /* 10810 * The initiator attempted multiple untagged commands at the same 10811 * time. Can't do that. 10812 */ 10813 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10814 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10815 && ((pending_io->io_hdr.nexus.targ_port == 10816 ooa_io->io_hdr.nexus.targ_port) 10817 && (pending_io->io_hdr.nexus.initid.id == 10818 ooa_io->io_hdr.nexus.initid.id)) 10819 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10820 return (CTL_ACTION_OVERLAP); 10821 10822 /* 10823 * The initiator attempted to send multiple tagged commands with 10824 * the same ID. (It's fine if different initiators have the same 10825 * tag ID.) 10826 * 10827 * Even if all of those conditions are true, we don't kill the I/O 10828 * if the command ahead of us has been aborted. We won't end up 10829 * sending it to the FETD, and it's perfectly legal to resend a 10830 * command with the same tag number as long as the previous 10831 * instance of this tag number has been aborted somehow. 10832 */ 10833 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10834 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10835 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10836 && ((pending_io->io_hdr.nexus.targ_port == 10837 ooa_io->io_hdr.nexus.targ_port) 10838 && (pending_io->io_hdr.nexus.initid.id == 10839 ooa_io->io_hdr.nexus.initid.id)) 10840 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10841 return (CTL_ACTION_OVERLAP_TAG); 10842 10843 /* 10844 * If we get a head of queue tag, SAM-3 says that we should 10845 * immediately execute it. 10846 * 10847 * What happens if this command would normally block for some other 10848 * reason? e.g. a request sense with a head of queue tag 10849 * immediately after a write. Normally that would block, but this 10850 * will result in its getting executed immediately... 10851 * 10852 * We currently return "pass" instead of "skip", so we'll end up 10853 * going through the rest of the queue to check for overlapped tags. 10854 * 10855 * XXX KDM check for other types of blockage first?? 10856 */ 10857 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10858 return (CTL_ACTION_PASS); 10859 10860 /* 10861 * Ordered tags have to block until all items ahead of them 10862 * have completed. If we get called with an ordered tag, we always 10863 * block, if something else is ahead of us in the queue. 10864 */ 10865 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 10866 return (CTL_ACTION_BLOCK); 10867 10868 /* 10869 * Simple tags get blocked until all head of queue and ordered tags 10870 * ahead of them have completed. I'm lumping untagged commands in 10871 * with simple tags here. XXX KDM is that the right thing to do? 10872 */ 10873 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10874 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 10875 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10876 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 10877 return (CTL_ACTION_BLOCK); 10878 10879 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 10880 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 10881 10882 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 10883 10884 switch (serialize_row[pending_entry->seridx]) { 10885 case CTL_SER_BLOCK: 10886 return (CTL_ACTION_BLOCK); 10887 case CTL_SER_EXTENT: 10888 return (ctl_extent_check(ooa_io, pending_io, 10889 (lun->serseq == CTL_LUN_SERSEQ_ON))); 10890 case CTL_SER_EXTENTOPT: 10891 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 10892 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 10893 return (ctl_extent_check(ooa_io, pending_io, 10894 (lun->serseq == CTL_LUN_SERSEQ_ON))); 10895 return (CTL_ACTION_PASS); 10896 case CTL_SER_EXTENTSEQ: 10897 if (lun->serseq != CTL_LUN_SERSEQ_OFF) 10898 return (ctl_extent_check_seq(ooa_io, pending_io)); 10899 return (CTL_ACTION_PASS); 10900 case CTL_SER_PASS: 10901 return (CTL_ACTION_PASS); 10902 case CTL_SER_BLOCKOPT: 10903 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 10904 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 10905 return (CTL_ACTION_BLOCK); 10906 return (CTL_ACTION_PASS); 10907 case CTL_SER_SKIP: 10908 return (CTL_ACTION_SKIP); 10909 default: 10910 panic("invalid serialization value %d", 10911 serialize_row[pending_entry->seridx]); 10912 } 10913 10914 return (CTL_ACTION_ERROR); 10915} 10916 10917/* 10918 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 10919 * Assumptions: 10920 * - pending_io is generally either incoming, or on the blocked queue 10921 * - starting I/O is the I/O we want to start the check with. 10922 */ 10923static ctl_action 10924ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 10925 union ctl_io *starting_io) 10926{ 10927 union ctl_io *ooa_io; 10928 ctl_action action; 10929 10930 mtx_assert(&lun->lun_lock, MA_OWNED); 10931 10932 /* 10933 * Run back along the OOA queue, starting with the current 10934 * blocked I/O and going through every I/O before it on the 10935 * queue. If starting_io is NULL, we'll just end up returning 10936 * CTL_ACTION_PASS. 10937 */ 10938 for (ooa_io = starting_io; ooa_io != NULL; 10939 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 10940 ooa_links)){ 10941 10942 /* 10943 * This routine just checks to see whether 10944 * cur_blocked is blocked by ooa_io, which is ahead 10945 * of it in the queue. It doesn't queue/dequeue 10946 * cur_blocked. 10947 */ 10948 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 10949 switch (action) { 10950 case CTL_ACTION_BLOCK: 10951 case CTL_ACTION_OVERLAP: 10952 case CTL_ACTION_OVERLAP_TAG: 10953 case CTL_ACTION_SKIP: 10954 case CTL_ACTION_ERROR: 10955 return (action); 10956 break; /* NOTREACHED */ 10957 case CTL_ACTION_PASS: 10958 break; 10959 default: 10960 panic("invalid action %d", action); 10961 break; /* NOTREACHED */ 10962 } 10963 } 10964 10965 return (CTL_ACTION_PASS); 10966} 10967 10968/* 10969 * Assumptions: 10970 * - An I/O has just completed, and has been removed from the per-LUN OOA 10971 * queue, so some items on the blocked queue may now be unblocked. 10972 */ 10973static int 10974ctl_check_blocked(struct ctl_lun *lun) 10975{ 10976 union ctl_io *cur_blocked, *next_blocked; 10977 10978 mtx_assert(&lun->lun_lock, MA_OWNED); 10979 10980 /* 10981 * Run forward from the head of the blocked queue, checking each 10982 * entry against the I/Os prior to it on the OOA queue to see if 10983 * there is still any blockage. 10984 * 10985 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 10986 * with our removing a variable on it while it is traversing the 10987 * list. 10988 */ 10989 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 10990 cur_blocked != NULL; cur_blocked = next_blocked) { 10991 union ctl_io *prev_ooa; 10992 ctl_action action; 10993 10994 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 10995 blocked_links); 10996 10997 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 10998 ctl_ooaq, ooa_links); 10999 11000 /* 11001 * If cur_blocked happens to be the first item in the OOA 11002 * queue now, prev_ooa will be NULL, and the action 11003 * returned will just be CTL_ACTION_PASS. 11004 */ 11005 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11006 11007 switch (action) { 11008 case CTL_ACTION_BLOCK: 11009 /* Nothing to do here, still blocked */ 11010 break; 11011 case CTL_ACTION_OVERLAP: 11012 case CTL_ACTION_OVERLAP_TAG: 11013 /* 11014 * This shouldn't happen! In theory we've already 11015 * checked this command for overlap... 11016 */ 11017 break; 11018 case CTL_ACTION_PASS: 11019 case CTL_ACTION_SKIP: { 11020 const struct ctl_cmd_entry *entry; 11021 int isc_retval; 11022 11023 /* 11024 * The skip case shouldn't happen, this transaction 11025 * should have never made it onto the blocked queue. 11026 */ 11027 /* 11028 * This I/O is no longer blocked, we can remove it 11029 * from the blocked queue. Since this is a TAILQ 11030 * (doubly linked list), we can do O(1) removals 11031 * from any place on the list. 11032 */ 11033 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11034 blocked_links); 11035 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11036 11037 if (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC){ 11038 /* 11039 * Need to send IO back to original side to 11040 * run 11041 */ 11042 union ctl_ha_msg msg_info; 11043 11044 msg_info.hdr.original_sc = 11045 cur_blocked->io_hdr.original_sc; 11046 msg_info.hdr.serializing_sc = cur_blocked; 11047 msg_info.hdr.msg_type = CTL_MSG_R2R; 11048 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11049 &msg_info, sizeof(msg_info), 0)) > 11050 CTL_HA_STATUS_SUCCESS) { 11051 printf("CTL:Check Blocked error from " 11052 "ctl_ha_msg_send %d\n", 11053 isc_retval); 11054 } 11055 break; 11056 } 11057 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 11058 11059 /* 11060 * Check this I/O for LUN state changes that may 11061 * have happened while this command was blocked. 11062 * The LUN state may have been changed by a command 11063 * ahead of us in the queue, so we need to re-check 11064 * for any states that can be caused by SCSI 11065 * commands. 11066 */ 11067 if (ctl_scsiio_lun_check(lun, entry, 11068 &cur_blocked->scsiio) == 0) { 11069 cur_blocked->io_hdr.flags |= 11070 CTL_FLAG_IS_WAS_ON_RTR; 11071 ctl_enqueue_rtr(cur_blocked); 11072 } else 11073 ctl_done(cur_blocked); 11074 break; 11075 } 11076 default: 11077 /* 11078 * This probably shouldn't happen -- we shouldn't 11079 * get CTL_ACTION_ERROR, or anything else. 11080 */ 11081 break; 11082 } 11083 } 11084 11085 return (CTL_RETVAL_COMPLETE); 11086} 11087 11088/* 11089 * This routine (with one exception) checks LUN flags that can be set by 11090 * commands ahead of us in the OOA queue. These flags have to be checked 11091 * when a command initially comes in, and when we pull a command off the 11092 * blocked queue and are preparing to execute it. The reason we have to 11093 * check these flags for commands on the blocked queue is that the LUN 11094 * state may have been changed by a command ahead of us while we're on the 11095 * blocked queue. 11096 * 11097 * Ordering is somewhat important with these checks, so please pay 11098 * careful attention to the placement of any new checks. 11099 */ 11100static int 11101ctl_scsiio_lun_check(struct ctl_lun *lun, 11102 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11103{ 11104 struct ctl_softc *softc = lun->ctl_softc; 11105 int retval; 11106 uint32_t residx; 11107 11108 retval = 0; 11109 11110 mtx_assert(&lun->lun_lock, MA_OWNED); 11111 11112 /* 11113 * If this shelf is a secondary shelf controller, we have to reject 11114 * any media access commands. 11115 */ 11116 if ((softc->flags & CTL_FLAG_ACTIVE_SHELF) == 0 && 11117 (entry->flags & CTL_CMD_FLAG_OK_ON_SECONDARY) == 0) { 11118 ctl_set_lun_standby(ctsio); 11119 retval = 1; 11120 goto bailout; 11121 } 11122 11123 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11124 if (lun->flags & CTL_LUN_READONLY) { 11125 ctl_set_sense(ctsio, /*current_error*/ 1, 11126 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11127 /*asc*/ 0x27, /*ascq*/ 0x01, SSD_ELEM_NONE); 11128 retval = 1; 11129 goto bailout; 11130 } 11131 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT] 11132 .eca_and_aen & SCP_SWP) != 0) { 11133 ctl_set_sense(ctsio, /*current_error*/ 1, 11134 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11135 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11136 retval = 1; 11137 goto bailout; 11138 } 11139 } 11140 11141 /* 11142 * Check for a reservation conflict. If this command isn't allowed 11143 * even on reserved LUNs, and if this initiator isn't the one who 11144 * reserved us, reject the command with a reservation conflict. 11145 */ 11146 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 11147 if ((lun->flags & CTL_LUN_RESERVED) 11148 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11149 if (lun->res_idx != residx) { 11150 ctl_set_reservation_conflict(ctsio); 11151 retval = 1; 11152 goto bailout; 11153 } 11154 } 11155 11156 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0 || 11157 (entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV)) { 11158 /* No reservation or command is allowed. */; 11159 } else if ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_WRESV) && 11160 (lun->res_type == SPR_TYPE_WR_EX || 11161 lun->res_type == SPR_TYPE_WR_EX_RO || 11162 lun->res_type == SPR_TYPE_WR_EX_AR)) { 11163 /* The command is allowed for Write Exclusive resv. */; 11164 } else { 11165 /* 11166 * if we aren't registered or it's a res holder type 11167 * reservation and this isn't the res holder then set a 11168 * conflict. 11169 */ 11170 if (ctl_get_prkey(lun, residx) == 0 11171 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 11172 ctl_set_reservation_conflict(ctsio); 11173 retval = 1; 11174 goto bailout; 11175 } 11176 11177 } 11178 11179 if ((lun->flags & CTL_LUN_OFFLINE) 11180 && ((entry->flags & CTL_CMD_FLAG_OK_ON_OFFLINE) == 0)) { 11181 ctl_set_lun_not_ready(ctsio); 11182 retval = 1; 11183 goto bailout; 11184 } 11185 11186 /* 11187 * If the LUN is stopped, see if this particular command is allowed 11188 * for a stopped lun. Otherwise, reject it with 0x04,0x02. 11189 */ 11190 if ((lun->flags & CTL_LUN_STOPPED) 11191 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 11192 /* "Logical unit not ready, initializing cmd. required" */ 11193 ctl_set_lun_stopped(ctsio); 11194 retval = 1; 11195 goto bailout; 11196 } 11197 11198 if ((lun->flags & CTL_LUN_INOPERABLE) 11199 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 11200 /* "Medium format corrupted" */ 11201 ctl_set_medium_format_corrupted(ctsio); 11202 retval = 1; 11203 goto bailout; 11204 } 11205 11206bailout: 11207 return (retval); 11208 11209} 11210 11211static void 11212ctl_failover_io(union ctl_io *io, int have_lock) 11213{ 11214 ctl_set_busy(&io->scsiio); 11215 ctl_done(io); 11216} 11217 11218static void 11219ctl_failover(void) 11220{ 11221 struct ctl_lun *lun; 11222 struct ctl_softc *softc; 11223 union ctl_io *next_io, *pending_io; 11224 union ctl_io *io; 11225 int lun_idx; 11226 11227 softc = control_softc; 11228 11229 mtx_lock(&softc->ctl_lock); 11230 /* 11231 * Remove any cmds from the other SC from the rtr queue. These 11232 * will obviously only be for LUNs for which we're the primary. 11233 * We can't send status or get/send data for these commands. 11234 * Since they haven't been executed yet, we can just remove them. 11235 * We'll either abort them or delete them below, depending on 11236 * which HA mode we're in. 11237 */ 11238#ifdef notyet 11239 mtx_lock(&softc->queue_lock); 11240 for (io = (union ctl_io *)STAILQ_FIRST(&softc->rtr_queue); 11241 io != NULL; io = next_io) { 11242 next_io = (union ctl_io *)STAILQ_NEXT(&io->io_hdr, links); 11243 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11244 STAILQ_REMOVE(&softc->rtr_queue, &io->io_hdr, 11245 ctl_io_hdr, links); 11246 } 11247 mtx_unlock(&softc->queue_lock); 11248#endif 11249 11250 for (lun_idx=0; lun_idx < softc->num_luns; lun_idx++) { 11251 lun = softc->ctl_luns[lun_idx]; 11252 if (lun==NULL) 11253 continue; 11254 11255 /* 11256 * Processor LUNs are primary on both sides. 11257 * XXX will this always be true? 11258 */ 11259 if (lun->be_lun->lun_type == T_PROCESSOR) 11260 continue; 11261 11262 if ((lun->flags & CTL_LUN_PRIMARY_SC) 11263 && (softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11264 printf("FAILOVER: primary lun %d\n", lun_idx); 11265 /* 11266 * Remove all commands from the other SC. First from the 11267 * blocked queue then from the ooa queue. Once we have 11268 * removed them. Call ctl_check_blocked to see if there 11269 * is anything that can run. 11270 */ 11271 for (io = (union ctl_io *)TAILQ_FIRST( 11272 &lun->blocked_queue); io != NULL; io = next_io) { 11273 11274 next_io = (union ctl_io *)TAILQ_NEXT( 11275 &io->io_hdr, blocked_links); 11276 11277 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11278 TAILQ_REMOVE(&lun->blocked_queue, 11279 &io->io_hdr,blocked_links); 11280 io->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11281 TAILQ_REMOVE(&lun->ooa_queue, 11282 &io->io_hdr, ooa_links); 11283 11284 ctl_free_io(io); 11285 } 11286 } 11287 11288 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11289 io != NULL; io = next_io) { 11290 11291 next_io = (union ctl_io *)TAILQ_NEXT( 11292 &io->io_hdr, ooa_links); 11293 11294 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11295 11296 TAILQ_REMOVE(&lun->ooa_queue, 11297 &io->io_hdr, 11298 ooa_links); 11299 11300 ctl_free_io(io); 11301 } 11302 } 11303 ctl_check_blocked(lun); 11304 } else if ((lun->flags & CTL_LUN_PRIMARY_SC) 11305 && (softc->ha_mode == CTL_HA_MODE_XFER)) { 11306 11307 printf("FAILOVER: primary lun %d\n", lun_idx); 11308 /* 11309 * Abort all commands from the other SC. We can't 11310 * send status back for them now. These should get 11311 * cleaned up when they are completed or come out 11312 * for a datamove operation. 11313 */ 11314 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11315 io != NULL; io = next_io) { 11316 next_io = (union ctl_io *)TAILQ_NEXT( 11317 &io->io_hdr, ooa_links); 11318 11319 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11320 io->io_hdr.flags |= CTL_FLAG_ABORT; 11321 } 11322 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11323 && (softc->ha_mode == CTL_HA_MODE_XFER)) { 11324 11325 printf("FAILOVER: secondary lun %d\n", lun_idx); 11326 11327 lun->flags |= CTL_LUN_PRIMARY_SC; 11328 11329 /* 11330 * We send all I/O that was sent to this controller 11331 * and redirected to the other side back with 11332 * busy status, and have the initiator retry it. 11333 * Figuring out how much data has been transferred, 11334 * etc. and picking up where we left off would be 11335 * very tricky. 11336 * 11337 * XXX KDM need to remove I/O from the blocked 11338 * queue as well! 11339 */ 11340 for (pending_io = (union ctl_io *)TAILQ_FIRST( 11341 &lun->ooa_queue); pending_io != NULL; 11342 pending_io = next_io) { 11343 11344 next_io = (union ctl_io *)TAILQ_NEXT( 11345 &pending_io->io_hdr, ooa_links); 11346 11347 pending_io->io_hdr.flags &= 11348 ~CTL_FLAG_SENT_2OTHER_SC; 11349 11350 if (pending_io->io_hdr.flags & 11351 CTL_FLAG_IO_ACTIVE) { 11352 pending_io->io_hdr.flags |= 11353 CTL_FLAG_FAILOVER; 11354 } else { 11355 ctl_set_busy(&pending_io->scsiio); 11356 ctl_done(pending_io); 11357 } 11358 } 11359 11360 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 11361 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11362 && (softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11363 printf("FAILOVER: secondary lun %d\n", lun_idx); 11364 /* 11365 * if the first io on the OOA is not on the RtR queue 11366 * add it. 11367 */ 11368 lun->flags |= CTL_LUN_PRIMARY_SC; 11369 11370 pending_io = (union ctl_io *)TAILQ_FIRST( 11371 &lun->ooa_queue); 11372 if (pending_io==NULL) { 11373 printf("Nothing on OOA queue\n"); 11374 continue; 11375 } 11376 11377 pending_io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11378 if ((pending_io->io_hdr.flags & 11379 CTL_FLAG_IS_WAS_ON_RTR) == 0) { 11380 pending_io->io_hdr.flags |= 11381 CTL_FLAG_IS_WAS_ON_RTR; 11382 ctl_enqueue_rtr(pending_io); 11383 } 11384#if 0 11385 else 11386 { 11387 printf("Tag 0x%04x is running\n", 11388 pending_io->scsiio.tag_num); 11389 } 11390#endif 11391 11392 next_io = (union ctl_io *)TAILQ_NEXT( 11393 &pending_io->io_hdr, ooa_links); 11394 for (pending_io=next_io; pending_io != NULL; 11395 pending_io = next_io) { 11396 pending_io->io_hdr.flags &= 11397 ~CTL_FLAG_SENT_2OTHER_SC; 11398 next_io = (union ctl_io *)TAILQ_NEXT( 11399 &pending_io->io_hdr, ooa_links); 11400 if (pending_io->io_hdr.flags & 11401 CTL_FLAG_IS_WAS_ON_RTR) { 11402#if 0 11403 printf("Tag 0x%04x is running\n", 11404 pending_io->scsiio.tag_num); 11405#endif 11406 continue; 11407 } 11408 11409 switch (ctl_check_ooa(lun, pending_io, 11410 (union ctl_io *)TAILQ_PREV( 11411 &pending_io->io_hdr, ctl_ooaq, 11412 ooa_links))) { 11413 11414 case CTL_ACTION_BLOCK: 11415 TAILQ_INSERT_TAIL(&lun->blocked_queue, 11416 &pending_io->io_hdr, 11417 blocked_links); 11418 pending_io->io_hdr.flags |= 11419 CTL_FLAG_BLOCKED; 11420 break; 11421 case CTL_ACTION_PASS: 11422 case CTL_ACTION_SKIP: 11423 pending_io->io_hdr.flags |= 11424 CTL_FLAG_IS_WAS_ON_RTR; 11425 ctl_enqueue_rtr(pending_io); 11426 break; 11427 case CTL_ACTION_OVERLAP: 11428 ctl_set_overlapped_cmd( 11429 (struct ctl_scsiio *)pending_io); 11430 ctl_done(pending_io); 11431 break; 11432 case CTL_ACTION_OVERLAP_TAG: 11433 ctl_set_overlapped_tag( 11434 (struct ctl_scsiio *)pending_io, 11435 pending_io->scsiio.tag_num & 0xff); 11436 ctl_done(pending_io); 11437 break; 11438 case CTL_ACTION_ERROR: 11439 default: 11440 ctl_set_internal_failure( 11441 (struct ctl_scsiio *)pending_io, 11442 0, // sks_valid 11443 0); //retry count 11444 ctl_done(pending_io); 11445 break; 11446 } 11447 } 11448 11449 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 11450 } else { 11451 panic("Unhandled HA mode failover, LUN flags = %#x, " 11452 "ha_mode = #%x", lun->flags, softc->ha_mode); 11453 } 11454 } 11455 ctl_pause_rtr = 0; 11456 mtx_unlock(&softc->ctl_lock); 11457} 11458 11459static int 11460ctl_scsiio_precheck(struct ctl_softc *softc, struct ctl_scsiio *ctsio) 11461{ 11462 struct ctl_lun *lun; 11463 const struct ctl_cmd_entry *entry; 11464 uint32_t initidx, targ_lun; 11465 int retval; 11466 11467 retval = 0; 11468 11469 lun = NULL; 11470 11471 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11472 if ((targ_lun < CTL_MAX_LUNS) 11473 && ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 11474 /* 11475 * If the LUN is invalid, pretend that it doesn't exist. 11476 * It will go away as soon as all pending I/O has been 11477 * completed. 11478 */ 11479 mtx_lock(&lun->lun_lock); 11480 if (lun->flags & CTL_LUN_DISABLED) { 11481 mtx_unlock(&lun->lun_lock); 11482 lun = NULL; 11483 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11484 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11485 } else { 11486 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11487 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11488 lun->be_lun; 11489 if (lun->be_lun->lun_type == T_PROCESSOR) { 11490 ctsio->io_hdr.flags |= CTL_FLAG_CONTROL_DEV; 11491 } 11492 11493 /* 11494 * Every I/O goes into the OOA queue for a 11495 * particular LUN, and stays there until completion. 11496 */ 11497 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11498 ooa_links); 11499 } 11500 } else { 11501 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11502 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11503 } 11504 11505 /* Get command entry and return error if it is unsuppotyed. */ 11506 entry = ctl_validate_command(ctsio); 11507 if (entry == NULL) { 11508 if (lun) 11509 mtx_unlock(&lun->lun_lock); 11510 return (retval); 11511 } 11512 11513 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11514 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11515 11516 /* 11517 * Check to see whether we can send this command to LUNs that don't 11518 * exist. This should pretty much only be the case for inquiry 11519 * and request sense. Further checks, below, really require having 11520 * a LUN, so we can't really check the command anymore. Just put 11521 * it on the rtr queue. 11522 */ 11523 if (lun == NULL) { 11524 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) { 11525 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11526 ctl_enqueue_rtr((union ctl_io *)ctsio); 11527 return (retval); 11528 } 11529 11530 ctl_set_unsupported_lun(ctsio); 11531 ctl_done((union ctl_io *)ctsio); 11532 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11533 return (retval); 11534 } else { 11535 /* 11536 * Make sure we support this particular command on this LUN. 11537 * e.g., we don't support writes to the control LUN. 11538 */ 11539 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11540 mtx_unlock(&lun->lun_lock); 11541 ctl_set_invalid_opcode(ctsio); 11542 ctl_done((union ctl_io *)ctsio); 11543 return (retval); 11544 } 11545 } 11546 11547 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11548 11549#ifdef CTL_WITH_CA 11550 /* 11551 * If we've got a request sense, it'll clear the contingent 11552 * allegiance condition. Otherwise, if we have a CA condition for 11553 * this initiator, clear it, because it sent down a command other 11554 * than request sense. 11555 */ 11556 if ((ctsio->cdb[0] != REQUEST_SENSE) 11557 && (ctl_is_set(lun->have_ca, initidx))) 11558 ctl_clear_mask(lun->have_ca, initidx); 11559#endif 11560 11561 /* 11562 * If the command has this flag set, it handles its own unit 11563 * attention reporting, we shouldn't do anything. Otherwise we 11564 * check for any pending unit attentions, and send them back to the 11565 * initiator. We only do this when a command initially comes in, 11566 * not when we pull it off the blocked queue. 11567 * 11568 * According to SAM-3, section 5.3.2, the order that things get 11569 * presented back to the host is basically unit attentions caused 11570 * by some sort of reset event, busy status, reservation conflicts 11571 * or task set full, and finally any other status. 11572 * 11573 * One issue here is that some of the unit attentions we report 11574 * don't fall into the "reset" category (e.g. "reported luns data 11575 * has changed"). So reporting it here, before the reservation 11576 * check, may be technically wrong. I guess the only thing to do 11577 * would be to check for and report the reset events here, and then 11578 * check for the other unit attention types after we check for a 11579 * reservation conflict. 11580 * 11581 * XXX KDM need to fix this 11582 */ 11583 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11584 ctl_ua_type ua_type; 11585 scsi_sense_data_type sense_format; 11586 11587 if (lun->flags & CTL_LUN_SENSE_DESC) 11588 sense_format = SSD_TYPE_DESC; 11589 else 11590 sense_format = SSD_TYPE_FIXED; 11591 11592 ua_type = ctl_build_ua(lun, initidx, &ctsio->sense_data, 11593 sense_format); 11594 if (ua_type != CTL_UA_NONE) { 11595 mtx_unlock(&lun->lun_lock); 11596 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11597 ctsio->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 11598 ctsio->sense_len = SSD_FULL_SIZE; 11599 ctl_done((union ctl_io *)ctsio); 11600 return (retval); 11601 } 11602 } 11603 11604 11605 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 11606 mtx_unlock(&lun->lun_lock); 11607 ctl_done((union ctl_io *)ctsio); 11608 return (retval); 11609 } 11610 11611 /* 11612 * XXX CHD this is where we want to send IO to other side if 11613 * this LUN is secondary on this SC. We will need to make a copy 11614 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11615 * the copy we send as FROM_OTHER. 11616 * We also need to stuff the address of the original IO so we can 11617 * find it easily. Something similar will need be done on the other 11618 * side so when we are done we can find the copy. 11619 */ 11620 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11621 union ctl_ha_msg msg_info; 11622 int isc_retval; 11623 11624 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11625 11626 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11627 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11628#if 0 11629 printf("1. ctsio %p\n", ctsio); 11630#endif 11631 msg_info.hdr.serializing_sc = NULL; 11632 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11633 msg_info.scsi.tag_num = ctsio->tag_num; 11634 msg_info.scsi.tag_type = ctsio->tag_type; 11635 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11636 11637 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11638 11639 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11640 (void *)&msg_info, sizeof(msg_info), 0)) > 11641 CTL_HA_STATUS_SUCCESS) { 11642 printf("CTL:precheck, ctl_ha_msg_send returned %d\n", 11643 isc_retval); 11644 printf("CTL:opcode is %x\n", ctsio->cdb[0]); 11645 } else { 11646#if 0 11647 printf("CTL:Precheck sent msg, opcode is %x\n",opcode); 11648#endif 11649 } 11650 11651 /* 11652 * XXX KDM this I/O is off the incoming queue, but hasn't 11653 * been inserted on any other queue. We may need to come 11654 * up with a holding queue while we wait for serialization 11655 * so that we have an idea of what we're waiting for from 11656 * the other side. 11657 */ 11658 mtx_unlock(&lun->lun_lock); 11659 return (retval); 11660 } 11661 11662 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11663 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11664 ctl_ooaq, ooa_links))) { 11665 case CTL_ACTION_BLOCK: 11666 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11667 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11668 blocked_links); 11669 mtx_unlock(&lun->lun_lock); 11670 return (retval); 11671 case CTL_ACTION_PASS: 11672 case CTL_ACTION_SKIP: 11673 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11674 mtx_unlock(&lun->lun_lock); 11675 ctl_enqueue_rtr((union ctl_io *)ctsio); 11676 break; 11677 case CTL_ACTION_OVERLAP: 11678 mtx_unlock(&lun->lun_lock); 11679 ctl_set_overlapped_cmd(ctsio); 11680 ctl_done((union ctl_io *)ctsio); 11681 break; 11682 case CTL_ACTION_OVERLAP_TAG: 11683 mtx_unlock(&lun->lun_lock); 11684 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11685 ctl_done((union ctl_io *)ctsio); 11686 break; 11687 case CTL_ACTION_ERROR: 11688 default: 11689 mtx_unlock(&lun->lun_lock); 11690 ctl_set_internal_failure(ctsio, 11691 /*sks_valid*/ 0, 11692 /*retry_count*/ 0); 11693 ctl_done((union ctl_io *)ctsio); 11694 break; 11695 } 11696 return (retval); 11697} 11698 11699const struct ctl_cmd_entry * 11700ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11701{ 11702 const struct ctl_cmd_entry *entry; 11703 int service_action; 11704 11705 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11706 if (sa) 11707 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11708 if (entry->flags & CTL_CMD_FLAG_SA5) { 11709 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11710 entry = &((const struct ctl_cmd_entry *) 11711 entry->execute)[service_action]; 11712 } 11713 return (entry); 11714} 11715 11716const struct ctl_cmd_entry * 11717ctl_validate_command(struct ctl_scsiio *ctsio) 11718{ 11719 const struct ctl_cmd_entry *entry; 11720 int i, sa; 11721 uint8_t diff; 11722 11723 entry = ctl_get_cmd_entry(ctsio, &sa); 11724 if (entry->execute == NULL) { 11725 if (sa) 11726 ctl_set_invalid_field(ctsio, 11727 /*sks_valid*/ 1, 11728 /*command*/ 1, 11729 /*field*/ 1, 11730 /*bit_valid*/ 1, 11731 /*bit*/ 4); 11732 else 11733 ctl_set_invalid_opcode(ctsio); 11734 ctl_done((union ctl_io *)ctsio); 11735 return (NULL); 11736 } 11737 KASSERT(entry->length > 0, 11738 ("Not defined length for command 0x%02x/0x%02x", 11739 ctsio->cdb[0], ctsio->cdb[1])); 11740 for (i = 1; i < entry->length; i++) { 11741 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11742 if (diff == 0) 11743 continue; 11744 ctl_set_invalid_field(ctsio, 11745 /*sks_valid*/ 1, 11746 /*command*/ 1, 11747 /*field*/ i, 11748 /*bit_valid*/ 1, 11749 /*bit*/ fls(diff) - 1); 11750 ctl_done((union ctl_io *)ctsio); 11751 return (NULL); 11752 } 11753 return (entry); 11754} 11755 11756static int 11757ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11758{ 11759 11760 switch (lun_type) { 11761 case T_PROCESSOR: 11762 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) && 11763 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11764 return (0); 11765 break; 11766 case T_DIRECT: 11767 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) && 11768 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11769 return (0); 11770 break; 11771 default: 11772 return (0); 11773 } 11774 return (1); 11775} 11776 11777static int 11778ctl_scsiio(struct ctl_scsiio *ctsio) 11779{ 11780 int retval; 11781 const struct ctl_cmd_entry *entry; 11782 11783 retval = CTL_RETVAL_COMPLETE; 11784 11785 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11786 11787 entry = ctl_get_cmd_entry(ctsio, NULL); 11788 11789 /* 11790 * If this I/O has been aborted, just send it straight to 11791 * ctl_done() without executing it. 11792 */ 11793 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11794 ctl_done((union ctl_io *)ctsio); 11795 goto bailout; 11796 } 11797 11798 /* 11799 * All the checks should have been handled by ctl_scsiio_precheck(). 11800 * We should be clear now to just execute the I/O. 11801 */ 11802 retval = entry->execute(ctsio); 11803 11804bailout: 11805 return (retval); 11806} 11807 11808/* 11809 * Since we only implement one target right now, a bus reset simply resets 11810 * our single target. 11811 */ 11812static int 11813ctl_bus_reset(struct ctl_softc *softc, union ctl_io *io) 11814{ 11815 return(ctl_target_reset(softc, io, CTL_UA_BUS_RESET)); 11816} 11817 11818static int 11819ctl_target_reset(struct ctl_softc *softc, union ctl_io *io, 11820 ctl_ua_type ua_type) 11821{ 11822 struct ctl_lun *lun; 11823 int retval; 11824 11825 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11826 union ctl_ha_msg msg_info; 11827 11828 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11829 msg_info.hdr.nexus = io->io_hdr.nexus; 11830 if (ua_type==CTL_UA_TARG_RESET) 11831 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11832 else 11833 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11834 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11835 msg_info.hdr.original_sc = NULL; 11836 msg_info.hdr.serializing_sc = NULL; 11837 if (CTL_HA_STATUS_SUCCESS != ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11838 (void *)&msg_info, sizeof(msg_info), 0)) { 11839 } 11840 } 11841 retval = 0; 11842 11843 mtx_lock(&softc->ctl_lock); 11844 STAILQ_FOREACH(lun, &softc->lun_list, links) 11845 retval += ctl_lun_reset(lun, io, ua_type); 11846 mtx_unlock(&softc->ctl_lock); 11847 11848 return (retval); 11849} 11850 11851/* 11852 * The LUN should always be set. The I/O is optional, and is used to 11853 * distinguish between I/Os sent by this initiator, and by other 11854 * initiators. We set unit attention for initiators other than this one. 11855 * SAM-3 is vague on this point. It does say that a unit attention should 11856 * be established for other initiators when a LUN is reset (see section 11857 * 5.7.3), but it doesn't specifically say that the unit attention should 11858 * be established for this particular initiator when a LUN is reset. Here 11859 * is the relevant text, from SAM-3 rev 8: 11860 * 11861 * 5.7.2 When a SCSI initiator port aborts its own tasks 11862 * 11863 * When a SCSI initiator port causes its own task(s) to be aborted, no 11864 * notification that the task(s) have been aborted shall be returned to 11865 * the SCSI initiator port other than the completion response for the 11866 * command or task management function action that caused the task(s) to 11867 * be aborted and notification(s) associated with related effects of the 11868 * action (e.g., a reset unit attention condition). 11869 * 11870 * XXX KDM for now, we're setting unit attention for all initiators. 11871 */ 11872static int 11873ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11874{ 11875 union ctl_io *xio; 11876#if 0 11877 uint32_t initidx; 11878#endif 11879#ifdef CTL_WITH_CA 11880 int i; 11881#endif 11882 11883 mtx_lock(&lun->lun_lock); 11884 /* 11885 * Run through the OOA queue and abort each I/O. 11886 */ 11887#if 0 11888 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 11889#endif 11890 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11891 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11892 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11893 } 11894 11895 /* 11896 * This version sets unit attention for every 11897 */ 11898#if 0 11899 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11900 ctl_est_ua_all(lun, initidx, ua_type); 11901#else 11902 ctl_est_ua_all(lun, -1, ua_type); 11903#endif 11904 11905 /* 11906 * A reset (any kind, really) clears reservations established with 11907 * RESERVE/RELEASE. It does not clear reservations established 11908 * with PERSISTENT RESERVE OUT, but we don't support that at the 11909 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11910 * reservations made with the RESERVE/RELEASE commands, because 11911 * those commands are obsolete in SPC-3. 11912 */ 11913 lun->flags &= ~CTL_LUN_RESERVED; 11914 11915#ifdef CTL_WITH_CA 11916 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11917 ctl_clear_mask(lun->have_ca, i); 11918#endif 11919 mtx_unlock(&lun->lun_lock); 11920 11921 return (0); 11922} 11923 11924static void 11925ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11926 int other_sc) 11927{ 11928 union ctl_io *xio; 11929 11930 mtx_assert(&lun->lun_lock, MA_OWNED); 11931 11932 /* 11933 * Run through the OOA queue and attempt to find the given I/O. 11934 * The target port, initiator ID, tag type and tag number have to 11935 * match the values that we got from the initiator. If we have an 11936 * untagged command to abort, simply abort the first untagged command 11937 * we come to. We only allow one untagged command at a time of course. 11938 */ 11939 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11940 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11941 11942 if ((targ_port == UINT32_MAX || 11943 targ_port == xio->io_hdr.nexus.targ_port) && 11944 (init_id == UINT32_MAX || 11945 init_id == xio->io_hdr.nexus.initid.id)) { 11946 if (targ_port != xio->io_hdr.nexus.targ_port || 11947 init_id != xio->io_hdr.nexus.initid.id) 11948 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 11949 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11950 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11951 union ctl_ha_msg msg_info; 11952 11953 msg_info.hdr.nexus = xio->io_hdr.nexus; 11954 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 11955 msg_info.task.tag_num = xio->scsiio.tag_num; 11956 msg_info.task.tag_type = xio->scsiio.tag_type; 11957 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11958 msg_info.hdr.original_sc = NULL; 11959 msg_info.hdr.serializing_sc = NULL; 11960 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11961 (void *)&msg_info, sizeof(msg_info), 0); 11962 } 11963 } 11964 } 11965} 11966 11967static int 11968ctl_abort_task_set(union ctl_io *io) 11969{ 11970 struct ctl_softc *softc = control_softc; 11971 struct ctl_lun *lun; 11972 uint32_t targ_lun; 11973 11974 /* 11975 * Look up the LUN. 11976 */ 11977 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11978 mtx_lock(&softc->ctl_lock); 11979 if ((targ_lun < CTL_MAX_LUNS) && (softc->ctl_luns[targ_lun] != NULL)) 11980 lun = softc->ctl_luns[targ_lun]; 11981 else { 11982 mtx_unlock(&softc->ctl_lock); 11983 return (1); 11984 } 11985 11986 mtx_lock(&lun->lun_lock); 11987 mtx_unlock(&softc->ctl_lock); 11988 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 11989 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11990 io->io_hdr.nexus.initid.id, 11991 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11992 } else { /* CTL_TASK_CLEAR_TASK_SET */ 11993 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 11994 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11995 } 11996 mtx_unlock(&lun->lun_lock); 11997 return (0); 11998} 11999 12000static int 12001ctl_i_t_nexus_reset(union ctl_io *io) 12002{ 12003 struct ctl_softc *softc = control_softc; 12004 struct ctl_lun *lun; 12005 uint32_t initidx, residx; 12006 12007 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12008 residx = ctl_get_resindex(&io->io_hdr.nexus); 12009 mtx_lock(&softc->ctl_lock); 12010 STAILQ_FOREACH(lun, &softc->lun_list, links) { 12011 mtx_lock(&lun->lun_lock); 12012 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12013 io->io_hdr.nexus.initid.id, 12014 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12015#ifdef CTL_WITH_CA 12016 ctl_clear_mask(lun->have_ca, initidx); 12017#endif 12018 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 12019 lun->flags &= ~CTL_LUN_RESERVED; 12020 ctl_est_ua(lun, initidx, CTL_UA_I_T_NEXUS_LOSS); 12021 mtx_unlock(&lun->lun_lock); 12022 } 12023 mtx_unlock(&softc->ctl_lock); 12024 return (0); 12025} 12026 12027static int 12028ctl_abort_task(union ctl_io *io) 12029{ 12030 union ctl_io *xio; 12031 struct ctl_lun *lun; 12032 struct ctl_softc *softc; 12033#if 0 12034 struct sbuf sb; 12035 char printbuf[128]; 12036#endif 12037 int found; 12038 uint32_t targ_lun; 12039 12040 softc = control_softc; 12041 found = 0; 12042 12043 /* 12044 * Look up the LUN. 12045 */ 12046 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12047 mtx_lock(&softc->ctl_lock); 12048 if ((targ_lun < CTL_MAX_LUNS) 12049 && (softc->ctl_luns[targ_lun] != NULL)) 12050 lun = softc->ctl_luns[targ_lun]; 12051 else { 12052 mtx_unlock(&softc->ctl_lock); 12053 return (1); 12054 } 12055 12056#if 0 12057 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12058 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12059#endif 12060 12061 mtx_lock(&lun->lun_lock); 12062 mtx_unlock(&softc->ctl_lock); 12063 /* 12064 * Run through the OOA queue and attempt to find the given I/O. 12065 * The target port, initiator ID, tag type and tag number have to 12066 * match the values that we got from the initiator. If we have an 12067 * untagged command to abort, simply abort the first untagged command 12068 * we come to. We only allow one untagged command at a time of course. 12069 */ 12070#if 0 12071 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12072#endif 12073 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12074 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12075#if 0 12076 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12077 12078 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12079 lun->lun, xio->scsiio.tag_num, 12080 xio->scsiio.tag_type, 12081 (xio->io_hdr.blocked_links.tqe_prev 12082 == NULL) ? "" : " BLOCKED", 12083 (xio->io_hdr.flags & 12084 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12085 (xio->io_hdr.flags & 12086 CTL_FLAG_ABORT) ? " ABORT" : "", 12087 (xio->io_hdr.flags & 12088 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12089 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12090 sbuf_finish(&sb); 12091 printf("%s\n", sbuf_data(&sb)); 12092#endif 12093 12094 if ((xio->io_hdr.nexus.targ_port == io->io_hdr.nexus.targ_port) 12095 && (xio->io_hdr.nexus.initid.id == 12096 io->io_hdr.nexus.initid.id)) { 12097 /* 12098 * If the abort says that the task is untagged, the 12099 * task in the queue must be untagged. Otherwise, 12100 * we just check to see whether the tag numbers 12101 * match. This is because the QLogic firmware 12102 * doesn't pass back the tag type in an abort 12103 * request. 12104 */ 12105#if 0 12106 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12107 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12108 || (xio->scsiio.tag_num == io->taskio.tag_num)) { 12109#endif 12110 /* 12111 * XXX KDM we've got problems with FC, because it 12112 * doesn't send down a tag type with aborts. So we 12113 * can only really go by the tag number... 12114 * This may cause problems with parallel SCSI. 12115 * Need to figure that out!! 12116 */ 12117 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12118 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12119 found = 1; 12120 if ((io->io_hdr.flags & 12121 CTL_FLAG_FROM_OTHER_SC) == 0 && 12122 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12123 union ctl_ha_msg msg_info; 12124 12125 io->io_hdr.flags |= 12126 CTL_FLAG_SENT_2OTHER_SC; 12127 msg_info.hdr.nexus = io->io_hdr.nexus; 12128 msg_info.task.task_action = 12129 CTL_TASK_ABORT_TASK; 12130 msg_info.task.tag_num = 12131 io->taskio.tag_num; 12132 msg_info.task.tag_type = 12133 io->taskio.tag_type; 12134 msg_info.hdr.msg_type = 12135 CTL_MSG_MANAGE_TASKS; 12136 msg_info.hdr.original_sc = NULL; 12137 msg_info.hdr.serializing_sc = NULL; 12138#if 0 12139 printf("Sent Abort to other side\n"); 12140#endif 12141 if (CTL_HA_STATUS_SUCCESS != 12142 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12143 (void *)&msg_info, 12144 sizeof(msg_info), 0)) { 12145 } 12146 } 12147#if 0 12148 printf("ctl_abort_task: found I/O to abort\n"); 12149#endif 12150 break; 12151 } 12152 } 12153 } 12154 mtx_unlock(&lun->lun_lock); 12155 12156 if (found == 0) { 12157 /* 12158 * This isn't really an error. It's entirely possible for 12159 * the abort and command completion to cross on the wire. 12160 * This is more of an informative/diagnostic error. 12161 */ 12162#if 0 12163 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12164 "%d:%d:%d:%d tag %d type %d\n", 12165 io->io_hdr.nexus.initid.id, 12166 io->io_hdr.nexus.targ_port, 12167 io->io_hdr.nexus.targ_target.id, 12168 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12169 io->taskio.tag_type); 12170#endif 12171 } 12172 return (0); 12173} 12174 12175static void 12176ctl_run_task(union ctl_io *io) 12177{ 12178 struct ctl_softc *softc = control_softc; 12179 int retval = 1; 12180 const char *task_desc; 12181 12182 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12183 12184 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12185 ("ctl_run_task: Unextected io_type %d\n", 12186 io->io_hdr.io_type)); 12187 12188 task_desc = ctl_scsi_task_string(&io->taskio); 12189 if (task_desc != NULL) { 12190#ifdef NEEDTOPORT 12191 csevent_log(CSC_CTL | CSC_SHELF_SW | 12192 CTL_TASK_REPORT, 12193 csevent_LogType_Trace, 12194 csevent_Severity_Information, 12195 csevent_AlertLevel_Green, 12196 csevent_FRU_Firmware, 12197 csevent_FRU_Unknown, 12198 "CTL: received task: %s",task_desc); 12199#endif 12200 } else { 12201#ifdef NEEDTOPORT 12202 csevent_log(CSC_CTL | CSC_SHELF_SW | 12203 CTL_TASK_REPORT, 12204 csevent_LogType_Trace, 12205 csevent_Severity_Information, 12206 csevent_AlertLevel_Green, 12207 csevent_FRU_Firmware, 12208 csevent_FRU_Unknown, 12209 "CTL: received unknown task " 12210 "type: %d (%#x)", 12211 io->taskio.task_action, 12212 io->taskio.task_action); 12213#endif 12214 } 12215 switch (io->taskio.task_action) { 12216 case CTL_TASK_ABORT_TASK: 12217 retval = ctl_abort_task(io); 12218 break; 12219 case CTL_TASK_ABORT_TASK_SET: 12220 case CTL_TASK_CLEAR_TASK_SET: 12221 retval = ctl_abort_task_set(io); 12222 break; 12223 case CTL_TASK_CLEAR_ACA: 12224 break; 12225 case CTL_TASK_I_T_NEXUS_RESET: 12226 retval = ctl_i_t_nexus_reset(io); 12227 break; 12228 case CTL_TASK_LUN_RESET: { 12229 struct ctl_lun *lun; 12230 uint32_t targ_lun; 12231 12232 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12233 mtx_lock(&softc->ctl_lock); 12234 if ((targ_lun < CTL_MAX_LUNS) 12235 && (softc->ctl_luns[targ_lun] != NULL)) 12236 lun = softc->ctl_luns[targ_lun]; 12237 else { 12238 mtx_unlock(&softc->ctl_lock); 12239 retval = 1; 12240 break; 12241 } 12242 12243 if (!(io->io_hdr.flags & 12244 CTL_FLAG_FROM_OTHER_SC)) { 12245 union ctl_ha_msg msg_info; 12246 12247 io->io_hdr.flags |= 12248 CTL_FLAG_SENT_2OTHER_SC; 12249 msg_info.hdr.msg_type = 12250 CTL_MSG_MANAGE_TASKS; 12251 msg_info.hdr.nexus = io->io_hdr.nexus; 12252 msg_info.task.task_action = 12253 CTL_TASK_LUN_RESET; 12254 msg_info.hdr.original_sc = NULL; 12255 msg_info.hdr.serializing_sc = NULL; 12256 if (CTL_HA_STATUS_SUCCESS != 12257 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12258 (void *)&msg_info, 12259 sizeof(msg_info), 0)) { 12260 } 12261 } 12262 12263 retval = ctl_lun_reset(lun, io, 12264 CTL_UA_LUN_RESET); 12265 mtx_unlock(&softc->ctl_lock); 12266 break; 12267 } 12268 case CTL_TASK_TARGET_RESET: 12269 retval = ctl_target_reset(softc, io, CTL_UA_TARG_RESET); 12270 break; 12271 case CTL_TASK_BUS_RESET: 12272 retval = ctl_bus_reset(softc, io); 12273 break; 12274 case CTL_TASK_PORT_LOGIN: 12275 break; 12276 case CTL_TASK_PORT_LOGOUT: 12277 break; 12278 default: 12279 printf("ctl_run_task: got unknown task management event %d\n", 12280 io->taskio.task_action); 12281 break; 12282 } 12283 if (retval == 0) 12284 io->io_hdr.status = CTL_SUCCESS; 12285 else 12286 io->io_hdr.status = CTL_ERROR; 12287 ctl_done(io); 12288} 12289 12290/* 12291 * For HA operation. Handle commands that come in from the other 12292 * controller. 12293 */ 12294static void 12295ctl_handle_isc(union ctl_io *io) 12296{ 12297 int free_io; 12298 struct ctl_lun *lun; 12299 struct ctl_softc *softc; 12300 uint32_t targ_lun; 12301 12302 softc = control_softc; 12303 12304 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12305 lun = softc->ctl_luns[targ_lun]; 12306 12307 switch (io->io_hdr.msg_type) { 12308 case CTL_MSG_SERIALIZE: 12309 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12310 break; 12311 case CTL_MSG_R2R: { 12312 const struct ctl_cmd_entry *entry; 12313 12314 /* 12315 * This is only used in SER_ONLY mode. 12316 */ 12317 free_io = 0; 12318 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12319 mtx_lock(&lun->lun_lock); 12320 if (ctl_scsiio_lun_check(lun, 12321 entry, (struct ctl_scsiio *)io) != 0) { 12322 mtx_unlock(&lun->lun_lock); 12323 ctl_done(io); 12324 break; 12325 } 12326 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12327 mtx_unlock(&lun->lun_lock); 12328 ctl_enqueue_rtr(io); 12329 break; 12330 } 12331 case CTL_MSG_FINISH_IO: 12332 if (softc->ha_mode == CTL_HA_MODE_XFER) { 12333 free_io = 0; 12334 ctl_done(io); 12335 } else { 12336 free_io = 1; 12337 mtx_lock(&lun->lun_lock); 12338 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12339 ooa_links); 12340 ctl_check_blocked(lun); 12341 mtx_unlock(&lun->lun_lock); 12342 } 12343 break; 12344 case CTL_MSG_PERS_ACTION: 12345 ctl_hndl_per_res_out_on_other_sc( 12346 (union ctl_ha_msg *)&io->presio.pr_msg); 12347 free_io = 1; 12348 break; 12349 case CTL_MSG_BAD_JUJU: 12350 free_io = 0; 12351 ctl_done(io); 12352 break; 12353 case CTL_MSG_DATAMOVE: 12354 /* Only used in XFER mode */ 12355 free_io = 0; 12356 ctl_datamove_remote(io); 12357 break; 12358 case CTL_MSG_DATAMOVE_DONE: 12359 /* Only used in XFER mode */ 12360 free_io = 0; 12361 io->scsiio.be_move_done(io); 12362 break; 12363 default: 12364 free_io = 1; 12365 printf("%s: Invalid message type %d\n", 12366 __func__, io->io_hdr.msg_type); 12367 break; 12368 } 12369 if (free_io) 12370 ctl_free_io(io); 12371 12372} 12373 12374 12375/* 12376 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12377 * there is no match. 12378 */ 12379static ctl_lun_error_pattern 12380ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12381{ 12382 const struct ctl_cmd_entry *entry; 12383 ctl_lun_error_pattern filtered_pattern, pattern; 12384 12385 pattern = desc->error_pattern; 12386 12387 /* 12388 * XXX KDM we need more data passed into this function to match a 12389 * custom pattern, and we actually need to implement custom pattern 12390 * matching. 12391 */ 12392 if (pattern & CTL_LUN_PAT_CMD) 12393 return (CTL_LUN_PAT_CMD); 12394 12395 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12396 return (CTL_LUN_PAT_ANY); 12397 12398 entry = ctl_get_cmd_entry(ctsio, NULL); 12399 12400 filtered_pattern = entry->pattern & pattern; 12401 12402 /* 12403 * If the user requested specific flags in the pattern (e.g. 12404 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12405 * flags. 12406 * 12407 * If the user did not specify any flags, it doesn't matter whether 12408 * or not the command supports the flags. 12409 */ 12410 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12411 (pattern & ~CTL_LUN_PAT_MASK)) 12412 return (CTL_LUN_PAT_NONE); 12413 12414 /* 12415 * If the user asked for a range check, see if the requested LBA 12416 * range overlaps with this command's LBA range. 12417 */ 12418 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12419 uint64_t lba1; 12420 uint64_t len1; 12421 ctl_action action; 12422 int retval; 12423 12424 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12425 if (retval != 0) 12426 return (CTL_LUN_PAT_NONE); 12427 12428 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12429 desc->lba_range.len, FALSE); 12430 /* 12431 * A "pass" means that the LBA ranges don't overlap, so 12432 * this doesn't match the user's range criteria. 12433 */ 12434 if (action == CTL_ACTION_PASS) 12435 return (CTL_LUN_PAT_NONE); 12436 } 12437 12438 return (filtered_pattern); 12439} 12440 12441static void 12442ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12443{ 12444 struct ctl_error_desc *desc, *desc2; 12445 12446 mtx_assert(&lun->lun_lock, MA_OWNED); 12447 12448 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12449 ctl_lun_error_pattern pattern; 12450 /* 12451 * Check to see whether this particular command matches 12452 * the pattern in the descriptor. 12453 */ 12454 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12455 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12456 continue; 12457 12458 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12459 case CTL_LUN_INJ_ABORTED: 12460 ctl_set_aborted(&io->scsiio); 12461 break; 12462 case CTL_LUN_INJ_MEDIUM_ERR: 12463 ctl_set_medium_error(&io->scsiio); 12464 break; 12465 case CTL_LUN_INJ_UA: 12466 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12467 * OCCURRED */ 12468 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12469 break; 12470 case CTL_LUN_INJ_CUSTOM: 12471 /* 12472 * We're assuming the user knows what he is doing. 12473 * Just copy the sense information without doing 12474 * checks. 12475 */ 12476 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12477 MIN(sizeof(desc->custom_sense), 12478 sizeof(io->scsiio.sense_data))); 12479 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12480 io->scsiio.sense_len = SSD_FULL_SIZE; 12481 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12482 break; 12483 case CTL_LUN_INJ_NONE: 12484 default: 12485 /* 12486 * If this is an error injection type we don't know 12487 * about, clear the continuous flag (if it is set) 12488 * so it will get deleted below. 12489 */ 12490 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12491 break; 12492 } 12493 /* 12494 * By default, each error injection action is a one-shot 12495 */ 12496 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12497 continue; 12498 12499 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12500 12501 free(desc, M_CTL); 12502 } 12503} 12504 12505#ifdef CTL_IO_DELAY 12506static void 12507ctl_datamove_timer_wakeup(void *arg) 12508{ 12509 union ctl_io *io; 12510 12511 io = (union ctl_io *)arg; 12512 12513 ctl_datamove(io); 12514} 12515#endif /* CTL_IO_DELAY */ 12516 12517void 12518ctl_datamove(union ctl_io *io) 12519{ 12520 void (*fe_datamove)(union ctl_io *io); 12521 12522 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12523 12524 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12525 12526#ifdef CTL_TIME_IO 12527 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12528 char str[256]; 12529 char path_str[64]; 12530 struct sbuf sb; 12531 12532 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12533 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12534 12535 sbuf_cat(&sb, path_str); 12536 switch (io->io_hdr.io_type) { 12537 case CTL_IO_SCSI: 12538 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12539 sbuf_printf(&sb, "\n"); 12540 sbuf_cat(&sb, path_str); 12541 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12542 io->scsiio.tag_num, io->scsiio.tag_type); 12543 break; 12544 case CTL_IO_TASK: 12545 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12546 "Tag Type: %d\n", io->taskio.task_action, 12547 io->taskio.tag_num, io->taskio.tag_type); 12548 break; 12549 default: 12550 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12551 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12552 break; 12553 } 12554 sbuf_cat(&sb, path_str); 12555 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12556 (intmax_t)time_uptime - io->io_hdr.start_time); 12557 sbuf_finish(&sb); 12558 printf("%s", sbuf_data(&sb)); 12559 } 12560#endif /* CTL_TIME_IO */ 12561 12562#ifdef CTL_IO_DELAY 12563 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12564 struct ctl_lun *lun; 12565 12566 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12567 12568 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12569 } else { 12570 struct ctl_lun *lun; 12571 12572 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12573 if ((lun != NULL) 12574 && (lun->delay_info.datamove_delay > 0)) { 12575 struct callout *callout; 12576 12577 callout = (struct callout *)&io->io_hdr.timer_bytes; 12578 callout_init(callout, /*mpsafe*/ 1); 12579 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12580 callout_reset(callout, 12581 lun->delay_info.datamove_delay * hz, 12582 ctl_datamove_timer_wakeup, io); 12583 if (lun->delay_info.datamove_type == 12584 CTL_DELAY_TYPE_ONESHOT) 12585 lun->delay_info.datamove_delay = 0; 12586 return; 12587 } 12588 } 12589#endif 12590 12591 /* 12592 * This command has been aborted. Set the port status, so we fail 12593 * the data move. 12594 */ 12595 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12596 printf("ctl_datamove: tag 0x%04x on (%ju:%d:%ju:%d) aborted\n", 12597 io->scsiio.tag_num,(uintmax_t)io->io_hdr.nexus.initid.id, 12598 io->io_hdr.nexus.targ_port, 12599 (uintmax_t)io->io_hdr.nexus.targ_target.id, 12600 io->io_hdr.nexus.targ_lun); 12601 io->io_hdr.port_status = 31337; 12602 /* 12603 * Note that the backend, in this case, will get the 12604 * callback in its context. In other cases it may get 12605 * called in the frontend's interrupt thread context. 12606 */ 12607 io->scsiio.be_move_done(io); 12608 return; 12609 } 12610 12611 /* Don't confuse frontend with zero length data move. */ 12612 if (io->scsiio.kern_data_len == 0) { 12613 io->scsiio.be_move_done(io); 12614 return; 12615 } 12616 12617 /* 12618 * If we're in XFER mode and this I/O is from the other shelf 12619 * controller, we need to send the DMA to the other side to 12620 * actually transfer the data to/from the host. In serialize only 12621 * mode the transfer happens below CTL and ctl_datamove() is only 12622 * called on the machine that originally received the I/O. 12623 */ 12624 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12625 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12626 union ctl_ha_msg msg; 12627 uint32_t sg_entries_sent; 12628 int do_sg_copy; 12629 int i; 12630 12631 memset(&msg, 0, sizeof(msg)); 12632 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12633 msg.hdr.original_sc = io->io_hdr.original_sc; 12634 msg.hdr.serializing_sc = io; 12635 msg.hdr.nexus = io->io_hdr.nexus; 12636 msg.dt.flags = io->io_hdr.flags; 12637 /* 12638 * We convert everything into a S/G list here. We can't 12639 * pass by reference, only by value between controllers. 12640 * So we can't pass a pointer to the S/G list, only as many 12641 * S/G entries as we can fit in here. If it's possible for 12642 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12643 * then we need to break this up into multiple transfers. 12644 */ 12645 if (io->scsiio.kern_sg_entries == 0) { 12646 msg.dt.kern_sg_entries = 1; 12647 /* 12648 * If this is in cached memory, flush the cache 12649 * before we send the DMA request to the other 12650 * controller. We want to do this in either the 12651 * read or the write case. The read case is 12652 * straightforward. In the write case, we want to 12653 * make sure nothing is in the local cache that 12654 * could overwrite the DMAed data. 12655 */ 12656 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12657 /* 12658 * XXX KDM use bus_dmamap_sync() here. 12659 */ 12660 } 12661 12662 /* 12663 * Convert to a physical address if this is a 12664 * virtual address. 12665 */ 12666 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12667 msg.dt.sg_list[0].addr = 12668 io->scsiio.kern_data_ptr; 12669 } else { 12670 /* 12671 * XXX KDM use busdma here! 12672 */ 12673#if 0 12674 msg.dt.sg_list[0].addr = (void *) 12675 vtophys(io->scsiio.kern_data_ptr); 12676#endif 12677 } 12678 12679 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12680 do_sg_copy = 0; 12681 } else { 12682 struct ctl_sg_entry *sgl; 12683 12684 do_sg_copy = 1; 12685 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12686 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 12687 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12688 /* 12689 * XXX KDM use bus_dmamap_sync() here. 12690 */ 12691 } 12692 } 12693 12694 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12695 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12696 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12697 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12698 msg.dt.sg_sequence = 0; 12699 12700 /* 12701 * Loop until we've sent all of the S/G entries. On the 12702 * other end, we'll recompose these S/G entries into one 12703 * contiguous list before passing it to the 12704 */ 12705 for (sg_entries_sent = 0; sg_entries_sent < 12706 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12707 msg.dt.cur_sg_entries = MIN((sizeof(msg.dt.sg_list)/ 12708 sizeof(msg.dt.sg_list[0])), 12709 msg.dt.kern_sg_entries - sg_entries_sent); 12710 12711 if (do_sg_copy != 0) { 12712 struct ctl_sg_entry *sgl; 12713 int j; 12714 12715 sgl = (struct ctl_sg_entry *) 12716 io->scsiio.kern_data_ptr; 12717 /* 12718 * If this is in cached memory, flush the cache 12719 * before we send the DMA request to the other 12720 * controller. We want to do this in either 12721 * the * read or the write case. The read 12722 * case is straightforward. In the write 12723 * case, we want to make sure nothing is 12724 * in the local cache that could overwrite 12725 * the DMAed data. 12726 */ 12727 12728 for (i = sg_entries_sent, j = 0; 12729 i < msg.dt.cur_sg_entries; i++, j++) { 12730 if ((io->io_hdr.flags & 12731 CTL_FLAG_NO_DATASYNC) == 0) { 12732 /* 12733 * XXX KDM use bus_dmamap_sync() 12734 */ 12735 } 12736 if ((io->io_hdr.flags & 12737 CTL_FLAG_BUS_ADDR) == 0) { 12738 /* 12739 * XXX KDM use busdma. 12740 */ 12741#if 0 12742 msg.dt.sg_list[j].addr =(void *) 12743 vtophys(sgl[i].addr); 12744#endif 12745 } else { 12746 msg.dt.sg_list[j].addr = 12747 sgl[i].addr; 12748 } 12749 msg.dt.sg_list[j].len = sgl[i].len; 12750 } 12751 } 12752 12753 sg_entries_sent += msg.dt.cur_sg_entries; 12754 if (sg_entries_sent >= msg.dt.kern_sg_entries) 12755 msg.dt.sg_last = 1; 12756 else 12757 msg.dt.sg_last = 0; 12758 12759 /* 12760 * XXX KDM drop and reacquire the lock here? 12761 */ 12762 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12763 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 12764 /* 12765 * XXX do something here. 12766 */ 12767 } 12768 12769 msg.dt.sent_sg_entries = sg_entries_sent; 12770 } 12771 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12772 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) 12773 ctl_failover_io(io, /*have_lock*/ 0); 12774 12775 } else { 12776 12777 /* 12778 * Lookup the fe_datamove() function for this particular 12779 * front end. 12780 */ 12781 fe_datamove = 12782 control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12783 12784 fe_datamove(io); 12785 } 12786} 12787 12788static void 12789ctl_send_datamove_done(union ctl_io *io, int have_lock) 12790{ 12791 union ctl_ha_msg msg; 12792 int isc_status; 12793 12794 memset(&msg, 0, sizeof(msg)); 12795 12796 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12797 msg.hdr.original_sc = io; 12798 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12799 msg.hdr.nexus = io->io_hdr.nexus; 12800 msg.hdr.status = io->io_hdr.status; 12801 msg.scsi.tag_num = io->scsiio.tag_num; 12802 msg.scsi.tag_type = io->scsiio.tag_type; 12803 msg.scsi.scsi_status = io->scsiio.scsi_status; 12804 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12805 sizeof(io->scsiio.sense_data)); 12806 msg.scsi.sense_len = io->scsiio.sense_len; 12807 msg.scsi.sense_residual = io->scsiio.sense_residual; 12808 msg.scsi.fetd_status = io->io_hdr.port_status; 12809 msg.scsi.residual = io->scsiio.residual; 12810 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12811 12812 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12813 ctl_failover_io(io, /*have_lock*/ have_lock); 12814 return; 12815 } 12816 12817 isc_status = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0); 12818 if (isc_status > CTL_HA_STATUS_SUCCESS) { 12819 /* XXX do something if this fails */ 12820 } 12821 12822} 12823 12824/* 12825 * The DMA to the remote side is done, now we need to tell the other side 12826 * we're done so it can continue with its data movement. 12827 */ 12828static void 12829ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12830{ 12831 union ctl_io *io; 12832 12833 io = rq->context; 12834 12835 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12836 printf("%s: ISC DMA write failed with error %d", __func__, 12837 rq->ret); 12838 ctl_set_internal_failure(&io->scsiio, 12839 /*sks_valid*/ 1, 12840 /*retry_count*/ rq->ret); 12841 } 12842 12843 ctl_dt_req_free(rq); 12844 12845 /* 12846 * In this case, we had to malloc the memory locally. Free it. 12847 */ 12848 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12849 int i; 12850 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12851 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12852 } 12853 /* 12854 * The data is in local and remote memory, so now we need to send 12855 * status (good or back) back to the other side. 12856 */ 12857 ctl_send_datamove_done(io, /*have_lock*/ 0); 12858} 12859 12860/* 12861 * We've moved the data from the host/controller into local memory. Now we 12862 * need to push it over to the remote controller's memory. 12863 */ 12864static int 12865ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12866{ 12867 int retval; 12868 12869 retval = 0; 12870 12871 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12872 ctl_datamove_remote_write_cb); 12873 12874 return (retval); 12875} 12876 12877static void 12878ctl_datamove_remote_write(union ctl_io *io) 12879{ 12880 int retval; 12881 void (*fe_datamove)(union ctl_io *io); 12882 12883 /* 12884 * - Get the data from the host/HBA into local memory. 12885 * - DMA memory from the local controller to the remote controller. 12886 * - Send status back to the remote controller. 12887 */ 12888 12889 retval = ctl_datamove_remote_sgl_setup(io); 12890 if (retval != 0) 12891 return; 12892 12893 /* Switch the pointer over so the FETD knows what to do */ 12894 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12895 12896 /* 12897 * Use a custom move done callback, since we need to send completion 12898 * back to the other controller, not to the backend on this side. 12899 */ 12900 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12901 12902 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12903 12904 fe_datamove(io); 12905 12906 return; 12907 12908} 12909 12910static int 12911ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12912{ 12913#if 0 12914 char str[256]; 12915 char path_str[64]; 12916 struct sbuf sb; 12917#endif 12918 12919 /* 12920 * In this case, we had to malloc the memory locally. Free it. 12921 */ 12922 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12923 int i; 12924 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12925 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12926 } 12927 12928#if 0 12929 scsi_path_string(io, path_str, sizeof(path_str)); 12930 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12931 sbuf_cat(&sb, path_str); 12932 scsi_command_string(&io->scsiio, NULL, &sb); 12933 sbuf_printf(&sb, "\n"); 12934 sbuf_cat(&sb, path_str); 12935 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12936 io->scsiio.tag_num, io->scsiio.tag_type); 12937 sbuf_cat(&sb, path_str); 12938 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12939 io->io_hdr.flags, io->io_hdr.status); 12940 sbuf_finish(&sb); 12941 printk("%s", sbuf_data(&sb)); 12942#endif 12943 12944 12945 /* 12946 * The read is done, now we need to send status (good or bad) back 12947 * to the other side. 12948 */ 12949 ctl_send_datamove_done(io, /*have_lock*/ 0); 12950 12951 return (0); 12952} 12953 12954static void 12955ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12956{ 12957 union ctl_io *io; 12958 void (*fe_datamove)(union ctl_io *io); 12959 12960 io = rq->context; 12961 12962 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12963 printf("%s: ISC DMA read failed with error %d", __func__, 12964 rq->ret); 12965 ctl_set_internal_failure(&io->scsiio, 12966 /*sks_valid*/ 1, 12967 /*retry_count*/ rq->ret); 12968 } 12969 12970 ctl_dt_req_free(rq); 12971 12972 /* Switch the pointer over so the FETD knows what to do */ 12973 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12974 12975 /* 12976 * Use a custom move done callback, since we need to send completion 12977 * back to the other controller, not to the backend on this side. 12978 */ 12979 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12980 12981 /* XXX KDM add checks like the ones in ctl_datamove? */ 12982 12983 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12984 12985 fe_datamove(io); 12986} 12987 12988static int 12989ctl_datamove_remote_sgl_setup(union ctl_io *io) 12990{ 12991 struct ctl_sg_entry *local_sglist, *remote_sglist; 12992 struct ctl_sg_entry *local_dma_sglist, *remote_dma_sglist; 12993 struct ctl_softc *softc; 12994 int retval; 12995 int i; 12996 12997 retval = 0; 12998 softc = control_softc; 12999 13000 local_sglist = io->io_hdr.local_sglist; 13001 local_dma_sglist = io->io_hdr.local_dma_sglist; 13002 remote_sglist = io->io_hdr.remote_sglist; 13003 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13004 13005 if (io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) { 13006 for (i = 0; i < io->scsiio.kern_sg_entries; i++) { 13007 local_sglist[i].len = remote_sglist[i].len; 13008 13009 /* 13010 * XXX Detect the situation where the RS-level I/O 13011 * redirector on the other side has already read the 13012 * data off of the AOR RS on this side, and 13013 * transferred it to remote (mirror) memory on the 13014 * other side. Since we already have the data in 13015 * memory here, we just need to use it. 13016 * 13017 * XXX KDM this can probably be removed once we 13018 * get the cache device code in and take the 13019 * current AOR implementation out. 13020 */ 13021#ifdef NEEDTOPORT 13022 if ((remote_sglist[i].addr >= 13023 (void *)vtophys(softc->mirr->addr)) 13024 && (remote_sglist[i].addr < 13025 ((void *)vtophys(softc->mirr->addr) + 13026 CacheMirrorOffset))) { 13027 local_sglist[i].addr = remote_sglist[i].addr - 13028 CacheMirrorOffset; 13029 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13030 CTL_FLAG_DATA_IN) 13031 io->io_hdr.flags |= CTL_FLAG_REDIR_DONE; 13032 } else { 13033 local_sglist[i].addr = remote_sglist[i].addr + 13034 CacheMirrorOffset; 13035 } 13036#endif 13037#if 0 13038 printf("%s: local %p, remote %p, len %d\n", 13039 __func__, local_sglist[i].addr, 13040 remote_sglist[i].addr, local_sglist[i].len); 13041#endif 13042 } 13043 } else { 13044 uint32_t len_to_go; 13045 13046 /* 13047 * In this case, we don't have automatically allocated 13048 * memory for this I/O on this controller. This typically 13049 * happens with internal CTL I/O -- e.g. inquiry, mode 13050 * sense, etc. Anything coming from RAIDCore will have 13051 * a mirror area available. 13052 */ 13053 len_to_go = io->scsiio.kern_data_len; 13054 13055 /* 13056 * Clear the no datasync flag, we have to use malloced 13057 * buffers. 13058 */ 13059 io->io_hdr.flags &= ~CTL_FLAG_NO_DATASYNC; 13060 13061 /* 13062 * The difficult thing here is that the size of the various 13063 * S/G segments may be different than the size from the 13064 * remote controller. That'll make it harder when DMAing 13065 * the data back to the other side. 13066 */ 13067 for (i = 0; (i < sizeof(io->io_hdr.remote_sglist) / 13068 sizeof(io->io_hdr.remote_sglist[0])) && 13069 (len_to_go > 0); i++) { 13070 local_sglist[i].len = MIN(len_to_go, 131072); 13071 CTL_SIZE_8B(local_dma_sglist[i].len, 13072 local_sglist[i].len); 13073 local_sglist[i].addr = 13074 malloc(local_dma_sglist[i].len, M_CTL,M_WAITOK); 13075 13076 local_dma_sglist[i].addr = local_sglist[i].addr; 13077 13078 if (local_sglist[i].addr == NULL) { 13079 int j; 13080 13081 printf("malloc failed for %zd bytes!", 13082 local_dma_sglist[i].len); 13083 for (j = 0; j < i; j++) { 13084 free(local_sglist[j].addr, M_CTL); 13085 } 13086 ctl_set_internal_failure(&io->scsiio, 13087 /*sks_valid*/ 1, 13088 /*retry_count*/ 4857); 13089 retval = 1; 13090 goto bailout_error; 13091 13092 } 13093 /* XXX KDM do we need a sync here? */ 13094 13095 len_to_go -= local_sglist[i].len; 13096 } 13097 /* 13098 * Reset the number of S/G entries accordingly. The 13099 * original number of S/G entries is available in 13100 * rem_sg_entries. 13101 */ 13102 io->scsiio.kern_sg_entries = i; 13103 13104#if 0 13105 printf("%s: kern_sg_entries = %d\n", __func__, 13106 io->scsiio.kern_sg_entries); 13107 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13108 printf("%s: sg[%d] = %p, %d (DMA: %d)\n", __func__, i, 13109 local_sglist[i].addr, local_sglist[i].len, 13110 local_dma_sglist[i].len); 13111#endif 13112 } 13113 13114 13115 return (retval); 13116 13117bailout_error: 13118 13119 ctl_send_datamove_done(io, /*have_lock*/ 0); 13120 13121 return (retval); 13122} 13123 13124static int 13125ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 13126 ctl_ha_dt_cb callback) 13127{ 13128 struct ctl_ha_dt_req *rq; 13129 struct ctl_sg_entry *remote_sglist, *local_sglist; 13130 struct ctl_sg_entry *remote_dma_sglist, *local_dma_sglist; 13131 uint32_t local_used, remote_used, total_used; 13132 int retval; 13133 int i, j; 13134 13135 retval = 0; 13136 13137 rq = ctl_dt_req_alloc(); 13138 13139 /* 13140 * If we failed to allocate the request, and if the DMA didn't fail 13141 * anyway, set busy status. This is just a resource allocation 13142 * failure. 13143 */ 13144 if ((rq == NULL) 13145 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)) 13146 ctl_set_busy(&io->scsiio); 13147 13148 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 13149 13150 if (rq != NULL) 13151 ctl_dt_req_free(rq); 13152 13153 /* 13154 * The data move failed. We need to return status back 13155 * to the other controller. No point in trying to DMA 13156 * data to the remote controller. 13157 */ 13158 13159 ctl_send_datamove_done(io, /*have_lock*/ 0); 13160 13161 retval = 1; 13162 13163 goto bailout; 13164 } 13165 13166 local_sglist = io->io_hdr.local_sglist; 13167 local_dma_sglist = io->io_hdr.local_dma_sglist; 13168 remote_sglist = io->io_hdr.remote_sglist; 13169 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13170 local_used = 0; 13171 remote_used = 0; 13172 total_used = 0; 13173 13174 if (io->io_hdr.flags & CTL_FLAG_REDIR_DONE) { 13175 rq->ret = CTL_HA_STATUS_SUCCESS; 13176 rq->context = io; 13177 callback(rq); 13178 goto bailout; 13179 } 13180 13181 /* 13182 * Pull/push the data over the wire from/to the other controller. 13183 * This takes into account the possibility that the local and 13184 * remote sglists may not be identical in terms of the size of 13185 * the elements and the number of elements. 13186 * 13187 * One fundamental assumption here is that the length allocated for 13188 * both the local and remote sglists is identical. Otherwise, we've 13189 * essentially got a coding error of some sort. 13190 */ 13191 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 13192 int isc_ret; 13193 uint32_t cur_len, dma_length; 13194 uint8_t *tmp_ptr; 13195 13196 rq->id = CTL_HA_DATA_CTL; 13197 rq->command = command; 13198 rq->context = io; 13199 13200 /* 13201 * Both pointers should be aligned. But it is possible 13202 * that the allocation length is not. They should both 13203 * also have enough slack left over at the end, though, 13204 * to round up to the next 8 byte boundary. 13205 */ 13206 cur_len = MIN(local_sglist[i].len - local_used, 13207 remote_sglist[j].len - remote_used); 13208 13209 /* 13210 * In this case, we have a size issue and need to decrease 13211 * the size, except in the case where we actually have less 13212 * than 8 bytes left. In that case, we need to increase 13213 * the DMA length to get the last bit. 13214 */ 13215 if ((cur_len & 0x7) != 0) { 13216 if (cur_len > 0x7) { 13217 cur_len = cur_len - (cur_len & 0x7); 13218 dma_length = cur_len; 13219 } else { 13220 CTL_SIZE_8B(dma_length, cur_len); 13221 } 13222 13223 } else 13224 dma_length = cur_len; 13225 13226 /* 13227 * If we had to allocate memory for this I/O, instead of using 13228 * the non-cached mirror memory, we'll need to flush the cache 13229 * before trying to DMA to the other controller. 13230 * 13231 * We could end up doing this multiple times for the same 13232 * segment if we have a larger local segment than remote 13233 * segment. That shouldn't be an issue. 13234 */ 13235 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 13236 /* 13237 * XXX KDM use bus_dmamap_sync() here. 13238 */ 13239 } 13240 13241 rq->size = dma_length; 13242 13243 tmp_ptr = (uint8_t *)local_sglist[i].addr; 13244 tmp_ptr += local_used; 13245 13246 /* Use physical addresses when talking to ISC hardware */ 13247 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 13248 /* XXX KDM use busdma */ 13249#if 0 13250 rq->local = vtophys(tmp_ptr); 13251#endif 13252 } else 13253 rq->local = tmp_ptr; 13254 13255 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 13256 tmp_ptr += remote_used; 13257 rq->remote = tmp_ptr; 13258 13259 rq->callback = NULL; 13260 13261 local_used += cur_len; 13262 if (local_used >= local_sglist[i].len) { 13263 i++; 13264 local_used = 0; 13265 } 13266 13267 remote_used += cur_len; 13268 if (remote_used >= remote_sglist[j].len) { 13269 j++; 13270 remote_used = 0; 13271 } 13272 total_used += cur_len; 13273 13274 if (total_used >= io->scsiio.kern_data_len) 13275 rq->callback = callback; 13276 13277 if ((rq->size & 0x7) != 0) { 13278 printf("%s: warning: size %d is not on 8b boundary\n", 13279 __func__, rq->size); 13280 } 13281 if (((uintptr_t)rq->local & 0x7) != 0) { 13282 printf("%s: warning: local %p not on 8b boundary\n", 13283 __func__, rq->local); 13284 } 13285 if (((uintptr_t)rq->remote & 0x7) != 0) { 13286 printf("%s: warning: remote %p not on 8b boundary\n", 13287 __func__, rq->local); 13288 } 13289#if 0 13290 printf("%s: %s: local %#x remote %#x size %d\n", __func__, 13291 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13292 rq->local, rq->remote, rq->size); 13293#endif 13294 13295 isc_ret = ctl_dt_single(rq); 13296 if (isc_ret == CTL_HA_STATUS_WAIT) 13297 continue; 13298 13299 if (isc_ret == CTL_HA_STATUS_DISCONNECT) { 13300 rq->ret = CTL_HA_STATUS_SUCCESS; 13301 } else { 13302 rq->ret = isc_ret; 13303 } 13304 callback(rq); 13305 goto bailout; 13306 } 13307 13308bailout: 13309 return (retval); 13310 13311} 13312 13313static void 13314ctl_datamove_remote_read(union ctl_io *io) 13315{ 13316 int retval; 13317 int i; 13318 13319 /* 13320 * This will send an error to the other controller in the case of a 13321 * failure. 13322 */ 13323 retval = ctl_datamove_remote_sgl_setup(io); 13324 if (retval != 0) 13325 return; 13326 13327 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13328 ctl_datamove_remote_read_cb); 13329 if ((retval != 0) 13330 && ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0)) { 13331 /* 13332 * Make sure we free memory if there was an error.. The 13333 * ctl_datamove_remote_xfer() function will send the 13334 * datamove done message, or call the callback with an 13335 * error if there is a problem. 13336 */ 13337 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13338 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13339 } 13340 13341 return; 13342} 13343 13344/* 13345 * Process a datamove request from the other controller. This is used for 13346 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13347 * first. Once that is complete, the data gets DMAed into the remote 13348 * controller's memory. For reads, we DMA from the remote controller's 13349 * memory into our memory first, and then move it out to the FETD. 13350 */ 13351static void 13352ctl_datamove_remote(union ctl_io *io) 13353{ 13354 struct ctl_softc *softc; 13355 13356 softc = control_softc; 13357 13358 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 13359 13360 /* 13361 * Note that we look for an aborted I/O here, but don't do some of 13362 * the other checks that ctl_datamove() normally does. 13363 * We don't need to run the datamove delay code, since that should 13364 * have been done if need be on the other controller. 13365 */ 13366 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13367 printf("%s: tag 0x%04x on (%d:%d:%d:%d) aborted\n", __func__, 13368 io->scsiio.tag_num, io->io_hdr.nexus.initid.id, 13369 io->io_hdr.nexus.targ_port, 13370 io->io_hdr.nexus.targ_target.id, 13371 io->io_hdr.nexus.targ_lun); 13372 io->io_hdr.port_status = 31338; 13373 ctl_send_datamove_done(io, /*have_lock*/ 0); 13374 return; 13375 } 13376 13377 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) { 13378 ctl_datamove_remote_write(io); 13379 } else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN){ 13380 ctl_datamove_remote_read(io); 13381 } else { 13382 union ctl_ha_msg msg; 13383 struct scsi_sense_data *sense; 13384 uint8_t sks[3]; 13385 int retry_count; 13386 13387 memset(&msg, 0, sizeof(msg)); 13388 13389 msg.hdr.msg_type = CTL_MSG_BAD_JUJU; 13390 msg.hdr.status = CTL_SCSI_ERROR; 13391 msg.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 13392 13393 retry_count = 4243; 13394 13395 sense = &msg.scsi.sense_data; 13396 sks[0] = SSD_SCS_VALID; 13397 sks[1] = (retry_count >> 8) & 0xff; 13398 sks[2] = retry_count & 0xff; 13399 13400 /* "Internal target failure" */ 13401 scsi_set_sense_data(sense, 13402 /*sense_format*/ SSD_TYPE_NONE, 13403 /*current_error*/ 1, 13404 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 13405 /*asc*/ 0x44, 13406 /*ascq*/ 0x00, 13407 /*type*/ SSD_ELEM_SKS, 13408 /*size*/ sizeof(sks), 13409 /*data*/ sks, 13410 SSD_ELEM_NONE); 13411 13412 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13413 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13414 ctl_failover_io(io, /*have_lock*/ 1); 13415 return; 13416 } 13417 13418 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0) > 13419 CTL_HA_STATUS_SUCCESS) { 13420 /* XXX KDM what to do if this fails? */ 13421 } 13422 return; 13423 } 13424 13425} 13426 13427static int 13428ctl_process_done(union ctl_io *io) 13429{ 13430 struct ctl_lun *lun; 13431 struct ctl_softc *softc = control_softc; 13432 void (*fe_done)(union ctl_io *io); 13433 uint32_t targ_port = ctl_port_idx(io->io_hdr.nexus.targ_port); 13434 13435 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13436 13437 fe_done = softc->ctl_ports[targ_port]->fe_done; 13438 13439#ifdef CTL_TIME_IO 13440 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13441 char str[256]; 13442 char path_str[64]; 13443 struct sbuf sb; 13444 13445 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13446 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13447 13448 sbuf_cat(&sb, path_str); 13449 switch (io->io_hdr.io_type) { 13450 case CTL_IO_SCSI: 13451 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13452 sbuf_printf(&sb, "\n"); 13453 sbuf_cat(&sb, path_str); 13454 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13455 io->scsiio.tag_num, io->scsiio.tag_type); 13456 break; 13457 case CTL_IO_TASK: 13458 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13459 "Tag Type: %d\n", io->taskio.task_action, 13460 io->taskio.tag_num, io->taskio.tag_type); 13461 break; 13462 default: 13463 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13464 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13465 break; 13466 } 13467 sbuf_cat(&sb, path_str); 13468 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13469 (intmax_t)time_uptime - io->io_hdr.start_time); 13470 sbuf_finish(&sb); 13471 printf("%s", sbuf_data(&sb)); 13472 } 13473#endif /* CTL_TIME_IO */ 13474 13475 switch (io->io_hdr.io_type) { 13476 case CTL_IO_SCSI: 13477 break; 13478 case CTL_IO_TASK: 13479 if (bootverbose || (ctl_debug & CTL_DEBUG_INFO)) 13480 ctl_io_error_print(io, NULL); 13481 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 13482 ctl_free_io(io); 13483 else 13484 fe_done(io); 13485 return (CTL_RETVAL_COMPLETE); 13486 default: 13487 panic("ctl_process_done: invalid io type %d\n", 13488 io->io_hdr.io_type); 13489 break; /* NOTREACHED */ 13490 } 13491 13492 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13493 if (lun == NULL) { 13494 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13495 io->io_hdr.nexus.targ_mapped_lun)); 13496 goto bailout; 13497 } 13498 13499 mtx_lock(&lun->lun_lock); 13500 13501 /* 13502 * Check to see if we have any errors to inject here. We only 13503 * inject errors for commands that don't already have errors set. 13504 */ 13505 if ((STAILQ_FIRST(&lun->error_list) != NULL) && 13506 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) && 13507 ((io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0)) 13508 ctl_inject_error(lun, io); 13509 13510 /* 13511 * XXX KDM how do we treat commands that aren't completed 13512 * successfully? 13513 * 13514 * XXX KDM should we also track I/O latency? 13515 */ 13516 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13517 io->io_hdr.io_type == CTL_IO_SCSI) { 13518#ifdef CTL_TIME_IO 13519 struct bintime cur_bt; 13520#endif 13521 int type; 13522 13523 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13524 CTL_FLAG_DATA_IN) 13525 type = CTL_STATS_READ; 13526 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13527 CTL_FLAG_DATA_OUT) 13528 type = CTL_STATS_WRITE; 13529 else 13530 type = CTL_STATS_NO_IO; 13531 13532 lun->stats.ports[targ_port].bytes[type] += 13533 io->scsiio.kern_total_len; 13534 lun->stats.ports[targ_port].operations[type]++; 13535#ifdef CTL_TIME_IO 13536 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13537 &io->io_hdr.dma_bt); 13538 lun->stats.ports[targ_port].num_dmas[type] += 13539 io->io_hdr.num_dmas; 13540 getbintime(&cur_bt); 13541 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13542 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13543#endif 13544 } 13545 13546 /* 13547 * Remove this from the OOA queue. 13548 */ 13549 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13550 13551 /* 13552 * Run through the blocked queue on this LUN and see if anything 13553 * has become unblocked, now that this transaction is done. 13554 */ 13555 ctl_check_blocked(lun); 13556 13557 /* 13558 * If the LUN has been invalidated, free it if there is nothing 13559 * left on its OOA queue. 13560 */ 13561 if ((lun->flags & CTL_LUN_INVALID) 13562 && TAILQ_EMPTY(&lun->ooa_queue)) { 13563 mtx_unlock(&lun->lun_lock); 13564 mtx_lock(&softc->ctl_lock); 13565 ctl_free_lun(lun); 13566 mtx_unlock(&softc->ctl_lock); 13567 } else 13568 mtx_unlock(&lun->lun_lock); 13569 13570bailout: 13571 13572 /* 13573 * If this command has been aborted, make sure we set the status 13574 * properly. The FETD is responsible for freeing the I/O and doing 13575 * whatever it needs to do to clean up its state. 13576 */ 13577 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13578 ctl_set_task_aborted(&io->scsiio); 13579 13580 /* 13581 * If enabled, print command error status. 13582 * We don't print UAs unless debugging was enabled explicitly. 13583 */ 13584 do { 13585 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) 13586 break; 13587 if (!bootverbose && (ctl_debug & CTL_DEBUG_INFO) == 0) 13588 break; 13589 if ((ctl_debug & CTL_DEBUG_INFO) == 0 && 13590 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SCSI_ERROR) && 13591 (io->scsiio.scsi_status == SCSI_STATUS_CHECK_COND)) { 13592 int error_code, sense_key, asc, ascq; 13593 13594 scsi_extract_sense_len(&io->scsiio.sense_data, 13595 io->scsiio.sense_len, &error_code, &sense_key, 13596 &asc, &ascq, /*show_errors*/ 0); 13597 if (sense_key == SSD_KEY_UNIT_ATTENTION) 13598 break; 13599 } 13600 13601 ctl_io_error_print(io, NULL); 13602 } while (0); 13603 13604 /* 13605 * Tell the FETD or the other shelf controller we're done with this 13606 * command. Note that only SCSI commands get to this point. Task 13607 * management commands are completed above. 13608 * 13609 * We only send status to the other controller if we're in XFER 13610 * mode. In SER_ONLY mode, the I/O is done on the controller that 13611 * received the I/O (from CTL's perspective), and so the status is 13612 * generated there. 13613 * 13614 * XXX KDM if we hold the lock here, we could cause a deadlock 13615 * if the frontend comes back in in this context to queue 13616 * something. 13617 */ 13618 if ((softc->ha_mode == CTL_HA_MODE_XFER) 13619 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 13620 union ctl_ha_msg msg; 13621 13622 memset(&msg, 0, sizeof(msg)); 13623 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13624 msg.hdr.original_sc = io->io_hdr.original_sc; 13625 msg.hdr.nexus = io->io_hdr.nexus; 13626 msg.hdr.status = io->io_hdr.status; 13627 msg.scsi.scsi_status = io->scsiio.scsi_status; 13628 msg.scsi.tag_num = io->scsiio.tag_num; 13629 msg.scsi.tag_type = io->scsiio.tag_type; 13630 msg.scsi.sense_len = io->scsiio.sense_len; 13631 msg.scsi.sense_residual = io->scsiio.sense_residual; 13632 msg.scsi.residual = io->scsiio.residual; 13633 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13634 sizeof(io->scsiio.sense_data)); 13635 /* 13636 * We copy this whether or not this is an I/O-related 13637 * command. Otherwise, we'd have to go and check to see 13638 * whether it's a read/write command, and it really isn't 13639 * worth it. 13640 */ 13641 memcpy(&msg.scsi.lbalen, 13642 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 13643 sizeof(msg.scsi.lbalen)); 13644 13645 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13646 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13647 /* XXX do something here */ 13648 } 13649 13650 ctl_free_io(io); 13651 } else 13652 fe_done(io); 13653 13654 return (CTL_RETVAL_COMPLETE); 13655} 13656 13657#ifdef CTL_WITH_CA 13658/* 13659 * Front end should call this if it doesn't do autosense. When the request 13660 * sense comes back in from the initiator, we'll dequeue this and send it. 13661 */ 13662int 13663ctl_queue_sense(union ctl_io *io) 13664{ 13665 struct ctl_lun *lun; 13666 struct ctl_softc *softc; 13667 uint32_t initidx, targ_lun; 13668 13669 softc = control_softc; 13670 13671 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13672 13673 /* 13674 * LUN lookup will likely move to the ctl_work_thread() once we 13675 * have our new queueing infrastructure (that doesn't put things on 13676 * a per-LUN queue initially). That is so that we can handle 13677 * things like an INQUIRY to a LUN that we don't have enabled. We 13678 * can't deal with that right now. 13679 */ 13680 mtx_lock(&softc->ctl_lock); 13681 13682 /* 13683 * If we don't have a LUN for this, just toss the sense 13684 * information. 13685 */ 13686 targ_lun = io->io_hdr.nexus.targ_lun; 13687 targ_lun = ctl_map_lun(softc, io->io_hdr.nexus.targ_port, targ_lun); 13688 if ((targ_lun < CTL_MAX_LUNS) 13689 && (softc->ctl_luns[targ_lun] != NULL)) 13690 lun = softc->ctl_luns[targ_lun]; 13691 else 13692 goto bailout; 13693 13694 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13695 13696 mtx_lock(&lun->lun_lock); 13697 /* 13698 * Already have CA set for this LUN...toss the sense information. 13699 */ 13700 if (ctl_is_set(lun->have_ca, initidx)) { 13701 mtx_unlock(&lun->lun_lock); 13702 goto bailout; 13703 } 13704 13705 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13706 MIN(sizeof(lun->pending_sense[initidx]), 13707 sizeof(io->scsiio.sense_data))); 13708 ctl_set_mask(lun->have_ca, initidx); 13709 mtx_unlock(&lun->lun_lock); 13710 13711bailout: 13712 mtx_unlock(&softc->ctl_lock); 13713 13714 ctl_free_io(io); 13715 13716 return (CTL_RETVAL_COMPLETE); 13717} 13718#endif 13719 13720/* 13721 * Primary command inlet from frontend ports. All SCSI and task I/O 13722 * requests must go through this function. 13723 */ 13724int 13725ctl_queue(union ctl_io *io) 13726{ 13727 13728 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13729 13730#ifdef CTL_TIME_IO 13731 io->io_hdr.start_time = time_uptime; 13732 getbintime(&io->io_hdr.start_bt); 13733#endif /* CTL_TIME_IO */ 13734 13735 /* Map FE-specific LUN ID into global one. */ 13736 io->io_hdr.nexus.targ_mapped_lun = 13737 ctl_map_lun(control_softc, io->io_hdr.nexus.targ_port, 13738 io->io_hdr.nexus.targ_lun); 13739 13740 switch (io->io_hdr.io_type) { 13741 case CTL_IO_SCSI: 13742 case CTL_IO_TASK: 13743 if (ctl_debug & CTL_DEBUG_CDB) 13744 ctl_io_print(io); 13745 ctl_enqueue_incoming(io); 13746 break; 13747 default: 13748 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13749 return (EINVAL); 13750 } 13751 13752 return (CTL_RETVAL_COMPLETE); 13753} 13754 13755#ifdef CTL_IO_DELAY 13756static void 13757ctl_done_timer_wakeup(void *arg) 13758{ 13759 union ctl_io *io; 13760 13761 io = (union ctl_io *)arg; 13762 ctl_done(io); 13763} 13764#endif /* CTL_IO_DELAY */ 13765 13766void 13767ctl_done(union ctl_io *io) 13768{ 13769 13770 /* 13771 * Enable this to catch duplicate completion issues. 13772 */ 13773#if 0 13774 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13775 printf("%s: type %d msg %d cdb %x iptl: " 13776 "%d:%d:%d:%d tag 0x%04x " 13777 "flag %#x status %x\n", 13778 __func__, 13779 io->io_hdr.io_type, 13780 io->io_hdr.msg_type, 13781 io->scsiio.cdb[0], 13782 io->io_hdr.nexus.initid.id, 13783 io->io_hdr.nexus.targ_port, 13784 io->io_hdr.nexus.targ_target.id, 13785 io->io_hdr.nexus.targ_lun, 13786 (io->io_hdr.io_type == 13787 CTL_IO_TASK) ? 13788 io->taskio.tag_num : 13789 io->scsiio.tag_num, 13790 io->io_hdr.flags, 13791 io->io_hdr.status); 13792 } else 13793 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13794#endif 13795 13796 /* 13797 * This is an internal copy of an I/O, and should not go through 13798 * the normal done processing logic. 13799 */ 13800 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13801 return; 13802 13803 /* 13804 * We need to send a msg to the serializing shelf to finish the IO 13805 * as well. We don't send a finish message to the other shelf if 13806 * this is a task management command. Task management commands 13807 * aren't serialized in the OOA queue, but rather just executed on 13808 * both shelf controllers for commands that originated on that 13809 * controller. 13810 */ 13811 if ((io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC) 13812 && (io->io_hdr.io_type != CTL_IO_TASK)) { 13813 union ctl_ha_msg msg_io; 13814 13815 msg_io.hdr.msg_type = CTL_MSG_FINISH_IO; 13816 msg_io.hdr.serializing_sc = io->io_hdr.serializing_sc; 13817 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_io, 13818 sizeof(msg_io), 0 ) != CTL_HA_STATUS_SUCCESS) { 13819 } 13820 /* continue on to finish IO */ 13821 } 13822#ifdef CTL_IO_DELAY 13823 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13824 struct ctl_lun *lun; 13825 13826 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13827 13828 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13829 } else { 13830 struct ctl_lun *lun; 13831 13832 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13833 13834 if ((lun != NULL) 13835 && (lun->delay_info.done_delay > 0)) { 13836 struct callout *callout; 13837 13838 callout = (struct callout *)&io->io_hdr.timer_bytes; 13839 callout_init(callout, /*mpsafe*/ 1); 13840 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13841 callout_reset(callout, 13842 lun->delay_info.done_delay * hz, 13843 ctl_done_timer_wakeup, io); 13844 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13845 lun->delay_info.done_delay = 0; 13846 return; 13847 } 13848 } 13849#endif /* CTL_IO_DELAY */ 13850 13851 ctl_enqueue_done(io); 13852} 13853 13854int 13855ctl_isc(struct ctl_scsiio *ctsio) 13856{ 13857 struct ctl_lun *lun; 13858 int retval; 13859 13860 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13861 13862 CTL_DEBUG_PRINT(("ctl_isc: command: %02x\n", ctsio->cdb[0])); 13863 13864 CTL_DEBUG_PRINT(("ctl_isc: calling data_submit()\n")); 13865 13866 retval = lun->backend->data_submit((union ctl_io *)ctsio); 13867 13868 return (retval); 13869} 13870 13871 13872static void 13873ctl_work_thread(void *arg) 13874{ 13875 struct ctl_thread *thr = (struct ctl_thread *)arg; 13876 struct ctl_softc *softc = thr->ctl_softc; 13877 union ctl_io *io; 13878 int retval; 13879 13880 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13881 13882 for (;;) { 13883 retval = 0; 13884 13885 /* 13886 * We handle the queues in this order: 13887 * - ISC 13888 * - done queue (to free up resources, unblock other commands) 13889 * - RtR queue 13890 * - incoming queue 13891 * 13892 * If those queues are empty, we break out of the loop and 13893 * go to sleep. 13894 */ 13895 mtx_lock(&thr->queue_lock); 13896 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13897 if (io != NULL) { 13898 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13899 mtx_unlock(&thr->queue_lock); 13900 ctl_handle_isc(io); 13901 continue; 13902 } 13903 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13904 if (io != NULL) { 13905 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13906 /* clear any blocked commands, call fe_done */ 13907 mtx_unlock(&thr->queue_lock); 13908 retval = ctl_process_done(io); 13909 continue; 13910 } 13911 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13912 if (io != NULL) { 13913 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13914 mtx_unlock(&thr->queue_lock); 13915 if (io->io_hdr.io_type == CTL_IO_TASK) 13916 ctl_run_task(io); 13917 else 13918 ctl_scsiio_precheck(softc, &io->scsiio); 13919 continue; 13920 } 13921 if (!ctl_pause_rtr) { 13922 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13923 if (io != NULL) { 13924 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13925 mtx_unlock(&thr->queue_lock); 13926 retval = ctl_scsiio(&io->scsiio); 13927 if (retval != CTL_RETVAL_COMPLETE) 13928 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13929 continue; 13930 } 13931 } 13932 13933 /* Sleep until we have something to do. */ 13934 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13935 } 13936} 13937 13938static void 13939ctl_lun_thread(void *arg) 13940{ 13941 struct ctl_softc *softc = (struct ctl_softc *)arg; 13942 struct ctl_be_lun *be_lun; 13943 int retval; 13944 13945 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 13946 13947 for (;;) { 13948 retval = 0; 13949 mtx_lock(&softc->ctl_lock); 13950 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 13951 if (be_lun != NULL) { 13952 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 13953 mtx_unlock(&softc->ctl_lock); 13954 ctl_create_lun(be_lun); 13955 continue; 13956 } 13957 13958 /* Sleep until we have something to do. */ 13959 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 13960 PDROP | PRIBIO, "-", 0); 13961 } 13962} 13963 13964static void 13965ctl_thresh_thread(void *arg) 13966{ 13967 struct ctl_softc *softc = (struct ctl_softc *)arg; 13968 struct ctl_lun *lun; 13969 struct ctl_be_lun *be_lun; 13970 struct scsi_da_rw_recovery_page *rwpage; 13971 struct ctl_logical_block_provisioning_page *page; 13972 const char *attr; 13973 uint64_t thres, val; 13974 int i, e; 13975 13976 CTL_DEBUG_PRINT(("ctl_thresh_thread starting\n")); 13977 13978 for (;;) { 13979 mtx_lock(&softc->ctl_lock); 13980 STAILQ_FOREACH(lun, &softc->lun_list, links) { 13981 be_lun = lun->be_lun; 13982 if ((lun->flags & CTL_LUN_DISABLED) || 13983 (lun->flags & CTL_LUN_OFFLINE) || 13984 lun->backend->lun_attr == NULL) 13985 continue; 13986 rwpage = &lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT]; 13987 if ((rwpage->byte8 & SMS_RWER_LBPERE) == 0) 13988 continue; 13989 e = 0; 13990 page = &lun->mode_pages.lbp_page[CTL_PAGE_CURRENT]; 13991 for (i = 0; i < CTL_NUM_LBP_THRESH; i++) { 13992 if ((page->descr[i].flags & SLBPPD_ENABLED) == 0) 13993 continue; 13994 thres = scsi_4btoul(page->descr[i].count); 13995 thres <<= CTL_LBP_EXPONENT; 13996 switch (page->descr[i].resource) { 13997 case 0x01: 13998 attr = "blocksavail"; 13999 break; 14000 case 0x02: 14001 attr = "blocksused"; 14002 break; 14003 case 0xf1: 14004 attr = "poolblocksavail"; 14005 break; 14006 case 0xf2: 14007 attr = "poolblocksused"; 14008 break; 14009 default: 14010 continue; 14011 } 14012 mtx_unlock(&softc->ctl_lock); // XXX 14013 val = lun->backend->lun_attr( 14014 lun->be_lun->be_lun, attr); 14015 mtx_lock(&softc->ctl_lock); 14016 if (val == UINT64_MAX) 14017 continue; 14018 if ((page->descr[i].flags & SLBPPD_ARMING_MASK) 14019 == SLBPPD_ARMING_INC) 14020 e |= (val >= thres); 14021 else 14022 e |= (val <= thres); 14023 } 14024 mtx_lock(&lun->lun_lock); 14025 if (e) { 14026 if (lun->lasttpt == 0 || 14027 time_uptime - lun->lasttpt >= CTL_LBP_UA_PERIOD) { 14028 lun->lasttpt = time_uptime; 14029 ctl_est_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 14030 } 14031 } else { 14032 lun->lasttpt = 0; 14033 ctl_clr_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 14034 } 14035 mtx_unlock(&lun->lun_lock); 14036 } 14037 mtx_unlock(&softc->ctl_lock); 14038 pause("-", CTL_LBP_PERIOD * hz); 14039 } 14040} 14041 14042static void 14043ctl_enqueue_incoming(union ctl_io *io) 14044{ 14045 struct ctl_softc *softc = control_softc; 14046 struct ctl_thread *thr; 14047 u_int idx; 14048 14049 idx = (io->io_hdr.nexus.targ_port * 127 + 14050 io->io_hdr.nexus.initid.id) % worker_threads; 14051 thr = &softc->threads[idx]; 14052 mtx_lock(&thr->queue_lock); 14053 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 14054 mtx_unlock(&thr->queue_lock); 14055 wakeup(thr); 14056} 14057 14058static void 14059ctl_enqueue_rtr(union ctl_io *io) 14060{ 14061 struct ctl_softc *softc = control_softc; 14062 struct ctl_thread *thr; 14063 14064 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14065 mtx_lock(&thr->queue_lock); 14066 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 14067 mtx_unlock(&thr->queue_lock); 14068 wakeup(thr); 14069} 14070 14071static void 14072ctl_enqueue_done(union ctl_io *io) 14073{ 14074 struct ctl_softc *softc = control_softc; 14075 struct ctl_thread *thr; 14076 14077 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14078 mtx_lock(&thr->queue_lock); 14079 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 14080 mtx_unlock(&thr->queue_lock); 14081 wakeup(thr); 14082} 14083 14084static void 14085ctl_enqueue_isc(union ctl_io *io) 14086{ 14087 struct ctl_softc *softc = control_softc; 14088 struct ctl_thread *thr; 14089 14090 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14091 mtx_lock(&thr->queue_lock); 14092 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 14093 mtx_unlock(&thr->queue_lock); 14094 wakeup(thr); 14095} 14096 14097/* Initialization and failover */ 14098 14099void 14100ctl_init_isc_msg(void) 14101{ 14102 printf("CTL: Still calling this thing\n"); 14103} 14104 14105/* 14106 * Init component 14107 * Initializes component into configuration defined by bootMode 14108 * (see hasc-sv.c) 14109 * returns hasc_Status: 14110 * OK 14111 * ERROR - fatal error 14112 */ 14113static ctl_ha_comp_status 14114ctl_isc_init(struct ctl_ha_component *c) 14115{ 14116 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14117 14118 c->status = ret; 14119 return ret; 14120} 14121 14122/* Start component 14123 * Starts component in state requested. If component starts successfully, 14124 * it must set its own state to the requestrd state 14125 * When requested state is HASC_STATE_HA, the component may refine it 14126 * by adding _SLAVE or _MASTER flags. 14127 * Currently allowed state transitions are: 14128 * UNKNOWN->HA - initial startup 14129 * UNKNOWN->SINGLE - initial startup when no parter detected 14130 * HA->SINGLE - failover 14131 * returns ctl_ha_comp_status: 14132 * OK - component successfully started in requested state 14133 * FAILED - could not start the requested state, failover may 14134 * be possible 14135 * ERROR - fatal error detected, no future startup possible 14136 */ 14137static ctl_ha_comp_status 14138ctl_isc_start(struct ctl_ha_component *c, ctl_ha_state state) 14139{ 14140 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14141 14142 printf("%s: go\n", __func__); 14143 14144 // UNKNOWN->HA or UNKNOWN->SINGLE (bootstrap) 14145 if (c->state == CTL_HA_STATE_UNKNOWN ) { 14146 control_softc->is_single = 0; 14147 if (ctl_ha_msg_create(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 14148 != CTL_HA_STATUS_SUCCESS) { 14149 printf("ctl_isc_start: ctl_ha_msg_create failed.\n"); 14150 ret = CTL_HA_COMP_STATUS_ERROR; 14151 } 14152 } else if (CTL_HA_STATE_IS_HA(c->state) 14153 && CTL_HA_STATE_IS_SINGLE(state)){ 14154 // HA->SINGLE transition 14155 ctl_failover(); 14156 control_softc->is_single = 1; 14157 } else { 14158 printf("ctl_isc_start:Invalid state transition %X->%X\n", 14159 c->state, state); 14160 ret = CTL_HA_COMP_STATUS_ERROR; 14161 } 14162 if (CTL_HA_STATE_IS_SINGLE(state)) 14163 control_softc->is_single = 1; 14164 14165 c->state = state; 14166 c->status = ret; 14167 return ret; 14168} 14169 14170/* 14171 * Quiesce component 14172 * The component must clear any error conditions (set status to OK) and 14173 * prepare itself to another Start call 14174 * returns ctl_ha_comp_status: 14175 * OK 14176 * ERROR 14177 */ 14178static ctl_ha_comp_status 14179ctl_isc_quiesce(struct ctl_ha_component *c) 14180{ 14181 int ret = CTL_HA_COMP_STATUS_OK; 14182 14183 ctl_pause_rtr = 1; 14184 c->status = ret; 14185 return ret; 14186} 14187 14188struct ctl_ha_component ctl_ha_component_ctlisc = 14189{ 14190 .name = "CTL ISC", 14191 .state = CTL_HA_STATE_UNKNOWN, 14192 .init = ctl_isc_init, 14193 .start = ctl_isc_start, 14194 .quiesce = ctl_isc_quiesce 14195}; 14196 14197/* 14198 * vim: ts=8 14199 */ 14200