ctl.c revision 275885
1/*- 2 * Copyright (c) 2003-2009 Silicon Graphics International Corp. 3 * Copyright (c) 2012 The FreeBSD Foundation 4 * All rights reserved. 5 * 6 * Portions of this software were developed by Edward Tomasz Napierala 7 * under sponsorship from the FreeBSD Foundation. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions, and the following disclaimer, 14 * without modification. 15 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 16 * substantially similar to the "NO WARRANTY" disclaimer below 17 * ("Disclaimer") and any redistribution must be conditioned upon 18 * including a substantially similar Disclaimer requirement for further 19 * binary redistribution. 20 * 21 * NO WARRANTY 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 23 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 24 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 25 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 26 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 30 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 31 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32 * POSSIBILITY OF SUCH DAMAGES. 33 * 34 * $Id: //depot/users/kenm/FreeBSD-test2/sys/cam/ctl/ctl.c#8 $ 35 */ 36/* 37 * CAM Target Layer, a SCSI device emulation subsystem. 38 * 39 * Author: Ken Merry <ken@FreeBSD.org> 40 */ 41 42#define _CTL_C 43 44#include <sys/cdefs.h> 45__FBSDID("$FreeBSD: stable/10/sys/cam/ctl/ctl.c 275885 2014-12-18 08:28:44Z mav $"); 46 47#include <sys/param.h> 48#include <sys/systm.h> 49#include <sys/ctype.h> 50#include <sys/kernel.h> 51#include <sys/types.h> 52#include <sys/kthread.h> 53#include <sys/bio.h> 54#include <sys/fcntl.h> 55#include <sys/lock.h> 56#include <sys/module.h> 57#include <sys/mutex.h> 58#include <sys/condvar.h> 59#include <sys/malloc.h> 60#include <sys/conf.h> 61#include <sys/ioccom.h> 62#include <sys/queue.h> 63#include <sys/sbuf.h> 64#include <sys/smp.h> 65#include <sys/endian.h> 66#include <sys/sysctl.h> 67#include <vm/uma.h> 68 69#include <cam/cam.h> 70#include <cam/scsi/scsi_all.h> 71#include <cam/scsi/scsi_da.h> 72#include <cam/ctl/ctl_io.h> 73#include <cam/ctl/ctl.h> 74#include <cam/ctl/ctl_frontend.h> 75#include <cam/ctl/ctl_frontend_internal.h> 76#include <cam/ctl/ctl_util.h> 77#include <cam/ctl/ctl_backend.h> 78#include <cam/ctl/ctl_ioctl.h> 79#include <cam/ctl/ctl_ha.h> 80#include <cam/ctl/ctl_private.h> 81#include <cam/ctl/ctl_debug.h> 82#include <cam/ctl/ctl_scsi_all.h> 83#include <cam/ctl/ctl_error.h> 84 85struct ctl_softc *control_softc = NULL; 86 87/* 88 * Size and alignment macros needed for Copan-specific HA hardware. These 89 * can go away when the HA code is re-written, and uses busdma for any 90 * hardware. 91 */ 92#define CTL_ALIGN_8B(target, source, type) \ 93 if (((uint32_t)source & 0x7) != 0) \ 94 target = (type)(source + (0x8 - ((uint32_t)source & 0x7)));\ 95 else \ 96 target = (type)source; 97 98#define CTL_SIZE_8B(target, size) \ 99 if ((size & 0x7) != 0) \ 100 target = size + (0x8 - (size & 0x7)); \ 101 else \ 102 target = size; 103 104#define CTL_ALIGN_8B_MARGIN 16 105 106/* 107 * Template mode pages. 108 */ 109 110/* 111 * Note that these are default values only. The actual values will be 112 * filled in when the user does a mode sense. 113 */ 114static struct copan_debugconf_subpage debugconf_page_default = { 115 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 116 DBGCNF_SUBPAGE_CODE, /* subpage */ 117 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 118 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 119 DBGCNF_VERSION, /* page_version */ 120 {CTL_TIME_IO_DEFAULT_SECS>>8, 121 CTL_TIME_IO_DEFAULT_SECS>>0}, /* ctl_time_io_secs */ 122}; 123 124static struct copan_debugconf_subpage debugconf_page_changeable = { 125 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 126 DBGCNF_SUBPAGE_CODE, /* subpage */ 127 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 128 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 129 0, /* page_version */ 130 {0xff,0xff}, /* ctl_time_io_secs */ 131}; 132 133static struct scsi_da_rw_recovery_page rw_er_page_default = { 134 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 135 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 136 /*byte3*/SMS_RWER_AWRE|SMS_RWER_ARRE, 137 /*read_retry_count*/0, 138 /*correction_span*/0, 139 /*head_offset_count*/0, 140 /*data_strobe_offset_cnt*/0, 141 /*byte8*/SMS_RWER_LBPERE, 142 /*write_retry_count*/0, 143 /*reserved2*/0, 144 /*recovery_time_limit*/{0, 0}, 145}; 146 147static struct scsi_da_rw_recovery_page rw_er_page_changeable = { 148 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 149 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 150 /*byte3*/0, 151 /*read_retry_count*/0, 152 /*correction_span*/0, 153 /*head_offset_count*/0, 154 /*data_strobe_offset_cnt*/0, 155 /*byte8*/0, 156 /*write_retry_count*/0, 157 /*reserved2*/0, 158 /*recovery_time_limit*/{0, 0}, 159}; 160 161static struct scsi_format_page format_page_default = { 162 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 163 /*page_length*/sizeof(struct scsi_format_page) - 2, 164 /*tracks_per_zone*/ {0, 0}, 165 /*alt_sectors_per_zone*/ {0, 0}, 166 /*alt_tracks_per_zone*/ {0, 0}, 167 /*alt_tracks_per_lun*/ {0, 0}, 168 /*sectors_per_track*/ {(CTL_DEFAULT_SECTORS_PER_TRACK >> 8) & 0xff, 169 CTL_DEFAULT_SECTORS_PER_TRACK & 0xff}, 170 /*bytes_per_sector*/ {0, 0}, 171 /*interleave*/ {0, 0}, 172 /*track_skew*/ {0, 0}, 173 /*cylinder_skew*/ {0, 0}, 174 /*flags*/ SFP_HSEC, 175 /*reserved*/ {0, 0, 0} 176}; 177 178static struct scsi_format_page format_page_changeable = { 179 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 180 /*page_length*/sizeof(struct scsi_format_page) - 2, 181 /*tracks_per_zone*/ {0, 0}, 182 /*alt_sectors_per_zone*/ {0, 0}, 183 /*alt_tracks_per_zone*/ {0, 0}, 184 /*alt_tracks_per_lun*/ {0, 0}, 185 /*sectors_per_track*/ {0, 0}, 186 /*bytes_per_sector*/ {0, 0}, 187 /*interleave*/ {0, 0}, 188 /*track_skew*/ {0, 0}, 189 /*cylinder_skew*/ {0, 0}, 190 /*flags*/ 0, 191 /*reserved*/ {0, 0, 0} 192}; 193 194static struct scsi_rigid_disk_page rigid_disk_page_default = { 195 /*page_code*/SMS_RIGID_DISK_PAGE, 196 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 197 /*cylinders*/ {0, 0, 0}, 198 /*heads*/ CTL_DEFAULT_HEADS, 199 /*start_write_precomp*/ {0, 0, 0}, 200 /*start_reduced_current*/ {0, 0, 0}, 201 /*step_rate*/ {0, 0}, 202 /*landing_zone_cylinder*/ {0, 0, 0}, 203 /*rpl*/ SRDP_RPL_DISABLED, 204 /*rotational_offset*/ 0, 205 /*reserved1*/ 0, 206 /*rotation_rate*/ {(CTL_DEFAULT_ROTATION_RATE >> 8) & 0xff, 207 CTL_DEFAULT_ROTATION_RATE & 0xff}, 208 /*reserved2*/ {0, 0} 209}; 210 211static struct scsi_rigid_disk_page rigid_disk_page_changeable = { 212 /*page_code*/SMS_RIGID_DISK_PAGE, 213 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 214 /*cylinders*/ {0, 0, 0}, 215 /*heads*/ 0, 216 /*start_write_precomp*/ {0, 0, 0}, 217 /*start_reduced_current*/ {0, 0, 0}, 218 /*step_rate*/ {0, 0}, 219 /*landing_zone_cylinder*/ {0, 0, 0}, 220 /*rpl*/ 0, 221 /*rotational_offset*/ 0, 222 /*reserved1*/ 0, 223 /*rotation_rate*/ {0, 0}, 224 /*reserved2*/ {0, 0} 225}; 226 227static struct scsi_caching_page caching_page_default = { 228 /*page_code*/SMS_CACHING_PAGE, 229 /*page_length*/sizeof(struct scsi_caching_page) - 2, 230 /*flags1*/ SCP_DISC | SCP_WCE, 231 /*ret_priority*/ 0, 232 /*disable_pf_transfer_len*/ {0xff, 0xff}, 233 /*min_prefetch*/ {0, 0}, 234 /*max_prefetch*/ {0xff, 0xff}, 235 /*max_pf_ceiling*/ {0xff, 0xff}, 236 /*flags2*/ 0, 237 /*cache_segments*/ 0, 238 /*cache_seg_size*/ {0, 0}, 239 /*reserved*/ 0, 240 /*non_cache_seg_size*/ {0, 0, 0} 241}; 242 243static struct scsi_caching_page caching_page_changeable = { 244 /*page_code*/SMS_CACHING_PAGE, 245 /*page_length*/sizeof(struct scsi_caching_page) - 2, 246 /*flags1*/ SCP_WCE | SCP_RCD, 247 /*ret_priority*/ 0, 248 /*disable_pf_transfer_len*/ {0, 0}, 249 /*min_prefetch*/ {0, 0}, 250 /*max_prefetch*/ {0, 0}, 251 /*max_pf_ceiling*/ {0, 0}, 252 /*flags2*/ 0, 253 /*cache_segments*/ 0, 254 /*cache_seg_size*/ {0, 0}, 255 /*reserved*/ 0, 256 /*non_cache_seg_size*/ {0, 0, 0} 257}; 258 259static struct scsi_control_page control_page_default = { 260 /*page_code*/SMS_CONTROL_MODE_PAGE, 261 /*page_length*/sizeof(struct scsi_control_page) - 2, 262 /*rlec*/0, 263 /*queue_flags*/SCP_QUEUE_ALG_RESTRICTED, 264 /*eca_and_aen*/0, 265 /*flags4*/SCP_TAS, 266 /*aen_holdoff_period*/{0, 0}, 267 /*busy_timeout_period*/{0, 0}, 268 /*extended_selftest_completion_time*/{0, 0} 269}; 270 271static struct scsi_control_page control_page_changeable = { 272 /*page_code*/SMS_CONTROL_MODE_PAGE, 273 /*page_length*/sizeof(struct scsi_control_page) - 2, 274 /*rlec*/SCP_DSENSE, 275 /*queue_flags*/SCP_QUEUE_ALG_MASK, 276 /*eca_and_aen*/SCP_SWP, 277 /*flags4*/0, 278 /*aen_holdoff_period*/{0, 0}, 279 /*busy_timeout_period*/{0, 0}, 280 /*extended_selftest_completion_time*/{0, 0} 281}; 282 283static struct scsi_info_exceptions_page ie_page_default = { 284 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 285 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 286 /*info_flags*/SIEP_FLAGS_DEXCPT, 287 /*mrie*/0, 288 /*interval_timer*/{0, 0, 0, 0}, 289 /*report_count*/{0, 0, 0, 0} 290}; 291 292static struct scsi_info_exceptions_page ie_page_changeable = { 293 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 294 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 295 /*info_flags*/0, 296 /*mrie*/0, 297 /*interval_timer*/{0, 0, 0, 0}, 298 /*report_count*/{0, 0, 0, 0} 299}; 300 301#define CTL_LBPM_LEN (sizeof(struct ctl_logical_block_provisioning_page) - 4) 302 303static struct ctl_logical_block_provisioning_page lbp_page_default = {{ 304 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 305 /*subpage_code*/0x02, 306 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 307 /*flags*/0, 308 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 309 /*descr*/{}}, 310 {{/*flags*/0, 311 /*resource*/0x01, 312 /*reserved*/{0, 0}, 313 /*count*/{0, 0, 0, 0}}, 314 {/*flags*/0, 315 /*resource*/0x02, 316 /*reserved*/{0, 0}, 317 /*count*/{0, 0, 0, 0}}, 318 {/*flags*/0, 319 /*resource*/0xf1, 320 /*reserved*/{0, 0}, 321 /*count*/{0, 0, 0, 0}}, 322 {/*flags*/0, 323 /*resource*/0xf2, 324 /*reserved*/{0, 0}, 325 /*count*/{0, 0, 0, 0}} 326 } 327}; 328 329static struct ctl_logical_block_provisioning_page lbp_page_changeable = {{ 330 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 331 /*subpage_code*/0x02, 332 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 333 /*flags*/0, 334 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 335 /*descr*/{}}, 336 {{/*flags*/0, 337 /*resource*/0, 338 /*reserved*/{0, 0}, 339 /*count*/{0, 0, 0, 0}}, 340 {/*flags*/0, 341 /*resource*/0, 342 /*reserved*/{0, 0}, 343 /*count*/{0, 0, 0, 0}}, 344 {/*flags*/0, 345 /*resource*/0, 346 /*reserved*/{0, 0}, 347 /*count*/{0, 0, 0, 0}}, 348 {/*flags*/0, 349 /*resource*/0, 350 /*reserved*/{0, 0}, 351 /*count*/{0, 0, 0, 0}} 352 } 353}; 354 355/* 356 * XXX KDM move these into the softc. 357 */ 358static int rcv_sync_msg; 359static uint8_t ctl_pause_rtr; 360 361SYSCTL_NODE(_kern_cam, OID_AUTO, ctl, CTLFLAG_RD, 0, "CAM Target Layer"); 362static int worker_threads = -1; 363TUNABLE_INT("kern.cam.ctl.worker_threads", &worker_threads); 364SYSCTL_INT(_kern_cam_ctl, OID_AUTO, worker_threads, CTLFLAG_RDTUN, 365 &worker_threads, 1, "Number of worker threads"); 366static int ctl_debug = CTL_DEBUG_NONE; 367TUNABLE_INT("kern.cam.ctl.debug", &ctl_debug); 368SYSCTL_INT(_kern_cam_ctl, OID_AUTO, debug, CTLFLAG_RWTUN, 369 &ctl_debug, 0, "Enabled debug flags"); 370 371/* 372 * Supported pages (0x00), Serial number (0x80), Device ID (0x83), 373 * Extended INQUIRY Data (0x86), Mode Page Policy (0x87), 374 * SCSI Ports (0x88), Third-party Copy (0x8F), Block limits (0xB0), 375 * Block Device Characteristics (0xB1) and Logical Block Provisioning (0xB2) 376 */ 377#define SCSI_EVPD_NUM_SUPPORTED_PAGES 10 378 379static void ctl_isc_event_handler(ctl_ha_channel chanel, ctl_ha_event event, 380 int param); 381static void ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest); 382static int ctl_init(void); 383void ctl_shutdown(void); 384static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td); 385static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td); 386static void ctl_ioctl_online(void *arg); 387static void ctl_ioctl_offline(void *arg); 388static int ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id); 389static int ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id); 390static int ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio); 391static int ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio); 392static int ctl_ioctl_submit_wait(union ctl_io *io); 393static void ctl_ioctl_datamove(union ctl_io *io); 394static void ctl_ioctl_done(union ctl_io *io); 395static void ctl_ioctl_hard_startstop_callback(void *arg, 396 struct cfi_metatask *metatask); 397static void ctl_ioctl_bbrread_callback(void *arg,struct cfi_metatask *metatask); 398static int ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 399 struct ctl_ooa *ooa_hdr, 400 struct ctl_ooa_entry *kern_entries); 401static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 402 struct thread *td); 403static uint32_t ctl_map_lun(int port_num, uint32_t lun); 404static uint32_t ctl_map_lun_back(int port_num, uint32_t lun); 405#ifdef unused 406static union ctl_io *ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, 407 uint32_t targ_target, uint32_t targ_lun, 408 int can_wait); 409static void ctl_kfree_io(union ctl_io *io); 410#endif /* unused */ 411static int ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 412 struct ctl_be_lun *be_lun, struct ctl_id target_id); 413static int ctl_free_lun(struct ctl_lun *lun); 414static void ctl_create_lun(struct ctl_be_lun *be_lun); 415/** 416static void ctl_failover_change_pages(struct ctl_softc *softc, 417 struct ctl_scsiio *ctsio, int master); 418**/ 419 420static int ctl_do_mode_select(union ctl_io *io); 421static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, 422 uint64_t res_key, uint64_t sa_res_key, 423 uint8_t type, uint32_t residx, 424 struct ctl_scsiio *ctsio, 425 struct scsi_per_res_out *cdb, 426 struct scsi_per_res_out_parms* param); 427static void ctl_pro_preempt_other(struct ctl_lun *lun, 428 union ctl_ha_msg *msg); 429static void ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg); 430static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 431static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 432static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 433static int ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len); 434static int ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len); 435static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, 436 int alloc_len); 437static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 438 int alloc_len); 439static int ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len); 440static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 441static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 442static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 443static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len); 444static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2); 445static ctl_action ctl_check_for_blockage(struct ctl_lun *lun, 446 union ctl_io *pending_io, union ctl_io *ooa_io); 447static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 448 union ctl_io *starting_io); 449static int ctl_check_blocked(struct ctl_lun *lun); 450static int ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, 451 struct ctl_lun *lun, 452 const struct ctl_cmd_entry *entry, 453 struct ctl_scsiio *ctsio); 454//static int ctl_check_rtr(union ctl_io *pending_io, struct ctl_softc *softc); 455static void ctl_failover(void); 456static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 457 struct ctl_scsiio *ctsio); 458static int ctl_scsiio(struct ctl_scsiio *ctsio); 459 460static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 461static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 462 ctl_ua_type ua_type); 463static int ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, 464 ctl_ua_type ua_type); 465static int ctl_abort_task(union ctl_io *io); 466static int ctl_abort_task_set(union ctl_io *io); 467static int ctl_i_t_nexus_reset(union ctl_io *io); 468static void ctl_run_task(union ctl_io *io); 469#ifdef CTL_IO_DELAY 470static void ctl_datamove_timer_wakeup(void *arg); 471static void ctl_done_timer_wakeup(void *arg); 472#endif /* CTL_IO_DELAY */ 473 474static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 475static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 476static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 477static void ctl_datamove_remote_write(union ctl_io *io); 478static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 479static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 480static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 481static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 482 ctl_ha_dt_cb callback); 483static void ctl_datamove_remote_read(union ctl_io *io); 484static void ctl_datamove_remote(union ctl_io *io); 485static int ctl_process_done(union ctl_io *io); 486static void ctl_lun_thread(void *arg); 487static void ctl_thresh_thread(void *arg); 488static void ctl_work_thread(void *arg); 489static void ctl_enqueue_incoming(union ctl_io *io); 490static void ctl_enqueue_rtr(union ctl_io *io); 491static void ctl_enqueue_done(union ctl_io *io); 492static void ctl_enqueue_isc(union ctl_io *io); 493static const struct ctl_cmd_entry * 494 ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa); 495static const struct ctl_cmd_entry * 496 ctl_validate_command(struct ctl_scsiio *ctsio); 497static int ctl_cmd_applicable(uint8_t lun_type, 498 const struct ctl_cmd_entry *entry); 499 500/* 501 * Load the serialization table. This isn't very pretty, but is probably 502 * the easiest way to do it. 503 */ 504#include "ctl_ser_table.c" 505 506/* 507 * We only need to define open, close and ioctl routines for this driver. 508 */ 509static struct cdevsw ctl_cdevsw = { 510 .d_version = D_VERSION, 511 .d_flags = 0, 512 .d_open = ctl_open, 513 .d_close = ctl_close, 514 .d_ioctl = ctl_ioctl, 515 .d_name = "ctl", 516}; 517 518 519MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 520MALLOC_DEFINE(M_CTLIO, "ctlio", "Memory used for CTL requests"); 521 522static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 523 524static moduledata_t ctl_moduledata = { 525 "ctl", 526 ctl_module_event_handler, 527 NULL 528}; 529 530DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 531MODULE_VERSION(ctl, 1); 532 533static struct ctl_frontend ioctl_frontend = 534{ 535 .name = "ioctl", 536}; 537 538static void 539ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 540 union ctl_ha_msg *msg_info) 541{ 542 struct ctl_scsiio *ctsio; 543 544 if (msg_info->hdr.original_sc == NULL) { 545 printf("%s: original_sc == NULL!\n", __func__); 546 /* XXX KDM now what? */ 547 return; 548 } 549 550 ctsio = &msg_info->hdr.original_sc->scsiio; 551 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 552 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 553 ctsio->io_hdr.status = msg_info->hdr.status; 554 ctsio->scsi_status = msg_info->scsi.scsi_status; 555 ctsio->sense_len = msg_info->scsi.sense_len; 556 ctsio->sense_residual = msg_info->scsi.sense_residual; 557 ctsio->residual = msg_info->scsi.residual; 558 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 559 sizeof(ctsio->sense_data)); 560 memcpy(&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 561 &msg_info->scsi.lbalen, sizeof(msg_info->scsi.lbalen)); 562 ctl_enqueue_isc((union ctl_io *)ctsio); 563} 564 565static void 566ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 567 union ctl_ha_msg *msg_info) 568{ 569 struct ctl_scsiio *ctsio; 570 571 if (msg_info->hdr.serializing_sc == NULL) { 572 printf("%s: serializing_sc == NULL!\n", __func__); 573 /* XXX KDM now what? */ 574 return; 575 } 576 577 ctsio = &msg_info->hdr.serializing_sc->scsiio; 578#if 0 579 /* 580 * Attempt to catch the situation where an I/O has 581 * been freed, and we're using it again. 582 */ 583 if (ctsio->io_hdr.io_type == 0xff) { 584 union ctl_io *tmp_io; 585 tmp_io = (union ctl_io *)ctsio; 586 printf("%s: %p use after free!\n", __func__, 587 ctsio); 588 printf("%s: type %d msg %d cdb %x iptl: " 589 "%d:%d:%d:%d tag 0x%04x " 590 "flag %#x status %x\n", 591 __func__, 592 tmp_io->io_hdr.io_type, 593 tmp_io->io_hdr.msg_type, 594 tmp_io->scsiio.cdb[0], 595 tmp_io->io_hdr.nexus.initid.id, 596 tmp_io->io_hdr.nexus.targ_port, 597 tmp_io->io_hdr.nexus.targ_target.id, 598 tmp_io->io_hdr.nexus.targ_lun, 599 (tmp_io->io_hdr.io_type == 600 CTL_IO_TASK) ? 601 tmp_io->taskio.tag_num : 602 tmp_io->scsiio.tag_num, 603 tmp_io->io_hdr.flags, 604 tmp_io->io_hdr.status); 605 } 606#endif 607 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 608 ctl_enqueue_isc((union ctl_io *)ctsio); 609} 610 611/* 612 * ISC (Inter Shelf Communication) event handler. Events from the HA 613 * subsystem come in here. 614 */ 615static void 616ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 617{ 618 struct ctl_softc *ctl_softc; 619 union ctl_io *io; 620 struct ctl_prio *presio; 621 ctl_ha_status isc_status; 622 623 ctl_softc = control_softc; 624 io = NULL; 625 626 627#if 0 628 printf("CTL: Isc Msg event %d\n", event); 629#endif 630 if (event == CTL_HA_EVT_MSG_RECV) { 631 union ctl_ha_msg msg_info; 632 633 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 634 sizeof(msg_info), /*wait*/ 0); 635#if 0 636 printf("CTL: msg_type %d\n", msg_info.msg_type); 637#endif 638 if (isc_status != 0) { 639 printf("Error receiving message, status = %d\n", 640 isc_status); 641 return; 642 } 643 644 switch (msg_info.hdr.msg_type) { 645 case CTL_MSG_SERIALIZE: 646#if 0 647 printf("Serialize\n"); 648#endif 649 io = ctl_alloc_io_nowait(ctl_softc->othersc_pool); 650 if (io == NULL) { 651 printf("ctl_isc_event_handler: can't allocate " 652 "ctl_io!\n"); 653 /* Bad Juju */ 654 /* Need to set busy and send msg back */ 655 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 656 msg_info.hdr.status = CTL_SCSI_ERROR; 657 msg_info.scsi.scsi_status = SCSI_STATUS_BUSY; 658 msg_info.scsi.sense_len = 0; 659 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 660 sizeof(msg_info), 0) > CTL_HA_STATUS_SUCCESS){ 661 } 662 goto bailout; 663 } 664 ctl_zero_io(io); 665 // populate ctsio from msg_info 666 io->io_hdr.io_type = CTL_IO_SCSI; 667 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 668 io->io_hdr.original_sc = msg_info.hdr.original_sc; 669#if 0 670 printf("pOrig %x\n", (int)msg_info.original_sc); 671#endif 672 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 673 CTL_FLAG_IO_ACTIVE; 674 /* 675 * If we're in serialization-only mode, we don't 676 * want to go through full done processing. Thus 677 * the COPY flag. 678 * 679 * XXX KDM add another flag that is more specific. 680 */ 681 if (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY) 682 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 683 io->io_hdr.nexus = msg_info.hdr.nexus; 684#if 0 685 printf("targ %d, port %d, iid %d, lun %d\n", 686 io->io_hdr.nexus.targ_target.id, 687 io->io_hdr.nexus.targ_port, 688 io->io_hdr.nexus.initid.id, 689 io->io_hdr.nexus.targ_lun); 690#endif 691 io->scsiio.tag_num = msg_info.scsi.tag_num; 692 io->scsiio.tag_type = msg_info.scsi.tag_type; 693 memcpy(io->scsiio.cdb, msg_info.scsi.cdb, 694 CTL_MAX_CDBLEN); 695 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 696 const struct ctl_cmd_entry *entry; 697 698 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 699 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 700 io->io_hdr.flags |= 701 entry->flags & CTL_FLAG_DATA_MASK; 702 } 703 ctl_enqueue_isc(io); 704 break; 705 706 /* Performed on the Originating SC, XFER mode only */ 707 case CTL_MSG_DATAMOVE: { 708 struct ctl_sg_entry *sgl; 709 int i, j; 710 711 io = msg_info.hdr.original_sc; 712 if (io == NULL) { 713 printf("%s: original_sc == NULL!\n", __func__); 714 /* XXX KDM do something here */ 715 break; 716 } 717 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 718 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 719 /* 720 * Keep track of this, we need to send it back over 721 * when the datamove is complete. 722 */ 723 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 724 725 if (msg_info.dt.sg_sequence == 0) { 726 /* 727 * XXX KDM we use the preallocated S/G list 728 * here, but we'll need to change this to 729 * dynamic allocation if we need larger S/G 730 * lists. 731 */ 732 if (msg_info.dt.kern_sg_entries > 733 sizeof(io->io_hdr.remote_sglist) / 734 sizeof(io->io_hdr.remote_sglist[0])) { 735 printf("%s: number of S/G entries " 736 "needed %u > allocated num %zd\n", 737 __func__, 738 msg_info.dt.kern_sg_entries, 739 sizeof(io->io_hdr.remote_sglist)/ 740 sizeof(io->io_hdr.remote_sglist[0])); 741 742 /* 743 * XXX KDM send a message back to 744 * the other side to shut down the 745 * DMA. The error will come back 746 * through via the normal channel. 747 */ 748 break; 749 } 750 sgl = io->io_hdr.remote_sglist; 751 memset(sgl, 0, 752 sizeof(io->io_hdr.remote_sglist)); 753 754 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 755 756 io->scsiio.kern_sg_entries = 757 msg_info.dt.kern_sg_entries; 758 io->scsiio.rem_sg_entries = 759 msg_info.dt.kern_sg_entries; 760 io->scsiio.kern_data_len = 761 msg_info.dt.kern_data_len; 762 io->scsiio.kern_total_len = 763 msg_info.dt.kern_total_len; 764 io->scsiio.kern_data_resid = 765 msg_info.dt.kern_data_resid; 766 io->scsiio.kern_rel_offset = 767 msg_info.dt.kern_rel_offset; 768 /* 769 * Clear out per-DMA flags. 770 */ 771 io->io_hdr.flags &= ~CTL_FLAG_RDMA_MASK; 772 /* 773 * Add per-DMA flags that are set for this 774 * particular DMA request. 775 */ 776 io->io_hdr.flags |= msg_info.dt.flags & 777 CTL_FLAG_RDMA_MASK; 778 } else 779 sgl = (struct ctl_sg_entry *) 780 io->scsiio.kern_data_ptr; 781 782 for (i = msg_info.dt.sent_sg_entries, j = 0; 783 i < (msg_info.dt.sent_sg_entries + 784 msg_info.dt.cur_sg_entries); i++, j++) { 785 sgl[i].addr = msg_info.dt.sg_list[j].addr; 786 sgl[i].len = msg_info.dt.sg_list[j].len; 787 788#if 0 789 printf("%s: L: %p,%d -> %p,%d j=%d, i=%d\n", 790 __func__, 791 msg_info.dt.sg_list[j].addr, 792 msg_info.dt.sg_list[j].len, 793 sgl[i].addr, sgl[i].len, j, i); 794#endif 795 } 796#if 0 797 memcpy(&sgl[msg_info.dt.sent_sg_entries], 798 msg_info.dt.sg_list, 799 sizeof(*sgl) * msg_info.dt.cur_sg_entries); 800#endif 801 802 /* 803 * If this is the last piece of the I/O, we've got 804 * the full S/G list. Queue processing in the thread. 805 * Otherwise wait for the next piece. 806 */ 807 if (msg_info.dt.sg_last != 0) 808 ctl_enqueue_isc(io); 809 break; 810 } 811 /* Performed on the Serializing (primary) SC, XFER mode only */ 812 case CTL_MSG_DATAMOVE_DONE: { 813 if (msg_info.hdr.serializing_sc == NULL) { 814 printf("%s: serializing_sc == NULL!\n", 815 __func__); 816 /* XXX KDM now what? */ 817 break; 818 } 819 /* 820 * We grab the sense information here in case 821 * there was a failure, so we can return status 822 * back to the initiator. 823 */ 824 io = msg_info.hdr.serializing_sc; 825 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 826 io->io_hdr.status = msg_info.hdr.status; 827 io->scsiio.scsi_status = msg_info.scsi.scsi_status; 828 io->scsiio.sense_len = msg_info.scsi.sense_len; 829 io->scsiio.sense_residual =msg_info.scsi.sense_residual; 830 io->io_hdr.port_status = msg_info.scsi.fetd_status; 831 io->scsiio.residual = msg_info.scsi.residual; 832 memcpy(&io->scsiio.sense_data,&msg_info.scsi.sense_data, 833 sizeof(io->scsiio.sense_data)); 834 ctl_enqueue_isc(io); 835 break; 836 } 837 838 /* Preformed on Originating SC, SER_ONLY mode */ 839 case CTL_MSG_R2R: 840 io = msg_info.hdr.original_sc; 841 if (io == NULL) { 842 printf("%s: Major Bummer\n", __func__); 843 return; 844 } else { 845#if 0 846 printf("pOrig %x\n",(int) ctsio); 847#endif 848 } 849 io->io_hdr.msg_type = CTL_MSG_R2R; 850 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 851 ctl_enqueue_isc(io); 852 break; 853 854 /* 855 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 856 * mode. 857 * Performed on the Originating (i.e. secondary) SC in XFER 858 * mode 859 */ 860 case CTL_MSG_FINISH_IO: 861 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) 862 ctl_isc_handler_finish_xfer(ctl_softc, 863 &msg_info); 864 else 865 ctl_isc_handler_finish_ser_only(ctl_softc, 866 &msg_info); 867 break; 868 869 /* Preformed on Originating SC */ 870 case CTL_MSG_BAD_JUJU: 871 io = msg_info.hdr.original_sc; 872 if (io == NULL) { 873 printf("%s: Bad JUJU!, original_sc is NULL!\n", 874 __func__); 875 break; 876 } 877 ctl_copy_sense_data(&msg_info, io); 878 /* 879 * IO should have already been cleaned up on other 880 * SC so clear this flag so we won't send a message 881 * back to finish the IO there. 882 */ 883 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 884 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 885 886 /* io = msg_info.hdr.serializing_sc; */ 887 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 888 ctl_enqueue_isc(io); 889 break; 890 891 /* Handle resets sent from the other side */ 892 case CTL_MSG_MANAGE_TASKS: { 893 struct ctl_taskio *taskio; 894 taskio = (struct ctl_taskio *)ctl_alloc_io_nowait( 895 ctl_softc->othersc_pool); 896 if (taskio == NULL) { 897 printf("ctl_isc_event_handler: can't allocate " 898 "ctl_io!\n"); 899 /* Bad Juju */ 900 /* should I just call the proper reset func 901 here??? */ 902 goto bailout; 903 } 904 ctl_zero_io((union ctl_io *)taskio); 905 taskio->io_hdr.io_type = CTL_IO_TASK; 906 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 907 taskio->io_hdr.nexus = msg_info.hdr.nexus; 908 taskio->task_action = msg_info.task.task_action; 909 taskio->tag_num = msg_info.task.tag_num; 910 taskio->tag_type = msg_info.task.tag_type; 911#ifdef CTL_TIME_IO 912 taskio->io_hdr.start_time = time_uptime; 913 getbintime(&taskio->io_hdr.start_bt); 914#if 0 915 cs_prof_gettime(&taskio->io_hdr.start_ticks); 916#endif 917#endif /* CTL_TIME_IO */ 918 ctl_run_task((union ctl_io *)taskio); 919 break; 920 } 921 /* Persistent Reserve action which needs attention */ 922 case CTL_MSG_PERS_ACTION: 923 presio = (struct ctl_prio *)ctl_alloc_io_nowait( 924 ctl_softc->othersc_pool); 925 if (presio == NULL) { 926 printf("ctl_isc_event_handler: can't allocate " 927 "ctl_io!\n"); 928 /* Bad Juju */ 929 /* Need to set busy and send msg back */ 930 goto bailout; 931 } 932 ctl_zero_io((union ctl_io *)presio); 933 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 934 presio->pr_msg = msg_info.pr; 935 ctl_enqueue_isc((union ctl_io *)presio); 936 break; 937 case CTL_MSG_SYNC_FE: 938 rcv_sync_msg = 1; 939 break; 940 default: 941 printf("How did I get here?\n"); 942 } 943 } else if (event == CTL_HA_EVT_MSG_SENT) { 944 if (param != CTL_HA_STATUS_SUCCESS) { 945 printf("Bad status from ctl_ha_msg_send status %d\n", 946 param); 947 } 948 return; 949 } else if (event == CTL_HA_EVT_DISCONNECT) { 950 printf("CTL: Got a disconnect from Isc\n"); 951 return; 952 } else { 953 printf("ctl_isc_event_handler: Unknown event %d\n", event); 954 return; 955 } 956 957bailout: 958 return; 959} 960 961static void 962ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 963{ 964 struct scsi_sense_data *sense; 965 966 sense = &dest->scsiio.sense_data; 967 bcopy(&src->scsi.sense_data, sense, sizeof(*sense)); 968 dest->scsiio.scsi_status = src->scsi.scsi_status; 969 dest->scsiio.sense_len = src->scsi.sense_len; 970 dest->io_hdr.status = src->hdr.status; 971} 972 973static int 974ctl_ha_state_sysctl(SYSCTL_HANDLER_ARGS) 975{ 976 struct ctl_softc *softc = (struct ctl_softc *)arg1; 977 struct ctl_lun *lun; 978 int error, value, i; 979 980 if (softc->flags & CTL_FLAG_ACTIVE_SHELF) 981 value = 0; 982 else 983 value = 1; 984 985 error = sysctl_handle_int(oidp, &value, 0, req); 986 if ((error != 0) || (req->newptr == NULL)) 987 return (error); 988 989 mtx_lock(&softc->ctl_lock); 990 if (value == 0) 991 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 992 else 993 softc->flags &= ~CTL_FLAG_ACTIVE_SHELF; 994 STAILQ_FOREACH(lun, &softc->lun_list, links) { 995 mtx_lock(&lun->lun_lock); 996 for (i = 0; i < CTL_MAX_INITIATORS; i++) 997 lun->pending_ua[i] |= CTL_UA_ASYM_ACC_CHANGE; 998 mtx_unlock(&lun->lun_lock); 999 } 1000 mtx_unlock(&softc->ctl_lock); 1001 return (0); 1002} 1003 1004static int 1005ctl_init(void) 1006{ 1007 struct ctl_softc *softc; 1008 void *other_pool; 1009 struct ctl_port *port; 1010 int i, error, retval; 1011 //int isc_retval; 1012 1013 retval = 0; 1014 ctl_pause_rtr = 0; 1015 rcv_sync_msg = 0; 1016 1017 control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 1018 M_WAITOK | M_ZERO); 1019 softc = control_softc; 1020 1021 softc->dev = make_dev(&ctl_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, 1022 "cam/ctl"); 1023 1024 softc->dev->si_drv1 = softc; 1025 1026 /* 1027 * By default, return a "bad LUN" peripheral qualifier for unknown 1028 * LUNs. The user can override this default using the tunable or 1029 * sysctl. See the comment in ctl_inquiry_std() for more details. 1030 */ 1031 softc->inquiry_pq_no_lun = 1; 1032 TUNABLE_INT_FETCH("kern.cam.ctl.inquiry_pq_no_lun", 1033 &softc->inquiry_pq_no_lun); 1034 sysctl_ctx_init(&softc->sysctl_ctx); 1035 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1036 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 1037 CTLFLAG_RD, 0, "CAM Target Layer"); 1038 1039 if (softc->sysctl_tree == NULL) { 1040 printf("%s: unable to allocate sysctl tree\n", __func__); 1041 destroy_dev(softc->dev); 1042 free(control_softc, M_DEVBUF); 1043 control_softc = NULL; 1044 return (ENOMEM); 1045 } 1046 1047 SYSCTL_ADD_INT(&softc->sysctl_ctx, 1048 SYSCTL_CHILDREN(softc->sysctl_tree), OID_AUTO, 1049 "inquiry_pq_no_lun", CTLFLAG_RW, 1050 &softc->inquiry_pq_no_lun, 0, 1051 "Report no lun possible for invalid LUNs"); 1052 1053 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 1054 softc->io_zone = uma_zcreate("CTL IO", sizeof(union ctl_io), 1055 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); 1056 softc->open_count = 0; 1057 1058 /* 1059 * Default to actually sending a SYNCHRONIZE CACHE command down to 1060 * the drive. 1061 */ 1062 softc->flags = CTL_FLAG_REAL_SYNC; 1063 1064 /* 1065 * In Copan's HA scheme, the "master" and "slave" roles are 1066 * figured out through the slot the controller is in. Although it 1067 * is an active/active system, someone has to be in charge. 1068 */ 1069 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1070 OID_AUTO, "ha_id", CTLFLAG_RDTUN, &softc->ha_id, 0, 1071 "HA head ID (0 - no HA)"); 1072 if (softc->ha_id == 0) { 1073 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1074 softc->is_single = 1; 1075 softc->port_offset = 0; 1076 } else 1077 softc->port_offset = (softc->ha_id - 1) * CTL_MAX_PORTS; 1078 softc->persis_offset = softc->port_offset * CTL_MAX_INIT_PER_PORT; 1079 1080 /* 1081 * XXX KDM need to figure out where we want to get our target ID 1082 * and WWID. Is it different on each port? 1083 */ 1084 softc->target.id = 0; 1085 softc->target.wwid[0] = 0x12345678; 1086 softc->target.wwid[1] = 0x87654321; 1087 STAILQ_INIT(&softc->lun_list); 1088 STAILQ_INIT(&softc->pending_lun_queue); 1089 STAILQ_INIT(&softc->fe_list); 1090 STAILQ_INIT(&softc->port_list); 1091 STAILQ_INIT(&softc->be_list); 1092 ctl_tpc_init(softc); 1093 1094 if (ctl_pool_create(softc, "othersc", CTL_POOL_ENTRIES_OTHER_SC, 1095 &other_pool) != 0) 1096 { 1097 printf("ctl: can't allocate %d entry other SC pool, " 1098 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1099 return (ENOMEM); 1100 } 1101 softc->othersc_pool = other_pool; 1102 1103 if (worker_threads <= 0) 1104 worker_threads = max(1, mp_ncpus / 4); 1105 if (worker_threads > CTL_MAX_THREADS) 1106 worker_threads = CTL_MAX_THREADS; 1107 1108 for (i = 0; i < worker_threads; i++) { 1109 struct ctl_thread *thr = &softc->threads[i]; 1110 1111 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1112 thr->ctl_softc = softc; 1113 STAILQ_INIT(&thr->incoming_queue); 1114 STAILQ_INIT(&thr->rtr_queue); 1115 STAILQ_INIT(&thr->done_queue); 1116 STAILQ_INIT(&thr->isc_queue); 1117 1118 error = kproc_kthread_add(ctl_work_thread, thr, 1119 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1120 if (error != 0) { 1121 printf("error creating CTL work thread!\n"); 1122 ctl_pool_free(other_pool); 1123 return (error); 1124 } 1125 } 1126 error = kproc_kthread_add(ctl_lun_thread, softc, 1127 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1128 if (error != 0) { 1129 printf("error creating CTL lun thread!\n"); 1130 ctl_pool_free(other_pool); 1131 return (error); 1132 } 1133 error = kproc_kthread_add(ctl_thresh_thread, softc, 1134 &softc->ctl_proc, NULL, 0, 0, "ctl", "thresh"); 1135 if (error != 0) { 1136 printf("error creating CTL threshold thread!\n"); 1137 ctl_pool_free(other_pool); 1138 return (error); 1139 } 1140 if (bootverbose) 1141 printf("ctl: CAM Target Layer loaded\n"); 1142 1143 /* 1144 * Initialize the ioctl front end. 1145 */ 1146 ctl_frontend_register(&ioctl_frontend); 1147 port = &softc->ioctl_info.port; 1148 port->frontend = &ioctl_frontend; 1149 sprintf(softc->ioctl_info.port_name, "ioctl"); 1150 port->port_type = CTL_PORT_IOCTL; 1151 port->num_requested_ctl_io = 100; 1152 port->port_name = softc->ioctl_info.port_name; 1153 port->port_online = ctl_ioctl_online; 1154 port->port_offline = ctl_ioctl_offline; 1155 port->onoff_arg = &softc->ioctl_info; 1156 port->lun_enable = ctl_ioctl_lun_enable; 1157 port->lun_disable = ctl_ioctl_lun_disable; 1158 port->targ_lun_arg = &softc->ioctl_info; 1159 port->fe_datamove = ctl_ioctl_datamove; 1160 port->fe_done = ctl_ioctl_done; 1161 port->max_targets = 15; 1162 port->max_target_id = 15; 1163 1164 if (ctl_port_register(&softc->ioctl_info.port) != 0) { 1165 printf("ctl: ioctl front end registration failed, will " 1166 "continue anyway\n"); 1167 } 1168 1169 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1170 OID_AUTO, "ha_state", CTLTYPE_INT | CTLFLAG_RWTUN, 1171 softc, 0, ctl_ha_state_sysctl, "I", "HA state for this head"); 1172 1173#ifdef CTL_IO_DELAY 1174 if (sizeof(struct callout) > CTL_TIMER_BYTES) { 1175 printf("sizeof(struct callout) %zd > CTL_TIMER_BYTES %zd\n", 1176 sizeof(struct callout), CTL_TIMER_BYTES); 1177 return (EINVAL); 1178 } 1179#endif /* CTL_IO_DELAY */ 1180 1181 return (0); 1182} 1183 1184void 1185ctl_shutdown(void) 1186{ 1187 struct ctl_softc *softc; 1188 struct ctl_lun *lun, *next_lun; 1189 1190 softc = (struct ctl_softc *)control_softc; 1191 1192 if (ctl_port_deregister(&softc->ioctl_info.port) != 0) 1193 printf("ctl: ioctl front end deregistration failed\n"); 1194 1195 mtx_lock(&softc->ctl_lock); 1196 1197 /* 1198 * Free up each LUN. 1199 */ 1200 for (lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; lun = next_lun){ 1201 next_lun = STAILQ_NEXT(lun, links); 1202 ctl_free_lun(lun); 1203 } 1204 1205 mtx_unlock(&softc->ctl_lock); 1206 1207 ctl_frontend_deregister(&ioctl_frontend); 1208 1209#if 0 1210 ctl_shutdown_thread(softc->work_thread); 1211 mtx_destroy(&softc->queue_lock); 1212#endif 1213 1214 ctl_tpc_shutdown(softc); 1215 uma_zdestroy(softc->io_zone); 1216 mtx_destroy(&softc->ctl_lock); 1217 1218 destroy_dev(softc->dev); 1219 1220 sysctl_ctx_free(&softc->sysctl_ctx); 1221 1222 free(control_softc, M_DEVBUF); 1223 control_softc = NULL; 1224 1225 if (bootverbose) 1226 printf("ctl: CAM Target Layer unloaded\n"); 1227} 1228 1229static int 1230ctl_module_event_handler(module_t mod, int what, void *arg) 1231{ 1232 1233 switch (what) { 1234 case MOD_LOAD: 1235 return (ctl_init()); 1236 case MOD_UNLOAD: 1237 return (EBUSY); 1238 default: 1239 return (EOPNOTSUPP); 1240 } 1241} 1242 1243/* 1244 * XXX KDM should we do some access checks here? Bump a reference count to 1245 * prevent a CTL module from being unloaded while someone has it open? 1246 */ 1247static int 1248ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1249{ 1250 return (0); 1251} 1252 1253static int 1254ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1255{ 1256 return (0); 1257} 1258 1259int 1260ctl_port_enable(ctl_port_type port_type) 1261{ 1262 struct ctl_softc *softc = control_softc; 1263 struct ctl_port *port; 1264 1265 if (softc->is_single == 0) { 1266 union ctl_ha_msg msg_info; 1267 int isc_retval; 1268 1269#if 0 1270 printf("%s: HA mode, synchronizing frontend enable\n", 1271 __func__); 1272#endif 1273 msg_info.hdr.msg_type = CTL_MSG_SYNC_FE; 1274 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1275 sizeof(msg_info), 1 )) > CTL_HA_STATUS_SUCCESS) { 1276 printf("Sync msg send error retval %d\n", isc_retval); 1277 } 1278 if (!rcv_sync_msg) { 1279 isc_retval=ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 1280 sizeof(msg_info), 1); 1281 } 1282#if 0 1283 printf("CTL:Frontend Enable\n"); 1284 } else { 1285 printf("%s: single mode, skipping frontend synchronization\n", 1286 __func__); 1287#endif 1288 } 1289 1290 STAILQ_FOREACH(port, &softc->port_list, links) { 1291 if (port_type & port->port_type) 1292 { 1293#if 0 1294 printf("port %d\n", port->targ_port); 1295#endif 1296 ctl_port_online(port); 1297 } 1298 } 1299 1300 return (0); 1301} 1302 1303int 1304ctl_port_disable(ctl_port_type port_type) 1305{ 1306 struct ctl_softc *softc; 1307 struct ctl_port *port; 1308 1309 softc = control_softc; 1310 1311 STAILQ_FOREACH(port, &softc->port_list, links) { 1312 if (port_type & port->port_type) 1313 ctl_port_offline(port); 1314 } 1315 1316 return (0); 1317} 1318 1319/* 1320 * Returns 0 for success, 1 for failure. 1321 * Currently the only failure mode is if there aren't enough entries 1322 * allocated. So, in case of a failure, look at num_entries_dropped, 1323 * reallocate and try again. 1324 */ 1325int 1326ctl_port_list(struct ctl_port_entry *entries, int num_entries_alloced, 1327 int *num_entries_filled, int *num_entries_dropped, 1328 ctl_port_type port_type, int no_virtual) 1329{ 1330 struct ctl_softc *softc; 1331 struct ctl_port *port; 1332 int entries_dropped, entries_filled; 1333 int retval; 1334 int i; 1335 1336 softc = control_softc; 1337 1338 retval = 0; 1339 entries_filled = 0; 1340 entries_dropped = 0; 1341 1342 i = 0; 1343 mtx_lock(&softc->ctl_lock); 1344 STAILQ_FOREACH(port, &softc->port_list, links) { 1345 struct ctl_port_entry *entry; 1346 1347 if ((port->port_type & port_type) == 0) 1348 continue; 1349 1350 if ((no_virtual != 0) 1351 && (port->virtual_port != 0)) 1352 continue; 1353 1354 if (entries_filled >= num_entries_alloced) { 1355 entries_dropped++; 1356 continue; 1357 } 1358 entry = &entries[i]; 1359 1360 entry->port_type = port->port_type; 1361 strlcpy(entry->port_name, port->port_name, 1362 sizeof(entry->port_name)); 1363 entry->physical_port = port->physical_port; 1364 entry->virtual_port = port->virtual_port; 1365 entry->wwnn = port->wwnn; 1366 entry->wwpn = port->wwpn; 1367 1368 i++; 1369 entries_filled++; 1370 } 1371 1372 mtx_unlock(&softc->ctl_lock); 1373 1374 if (entries_dropped > 0) 1375 retval = 1; 1376 1377 *num_entries_dropped = entries_dropped; 1378 *num_entries_filled = entries_filled; 1379 1380 return (retval); 1381} 1382 1383static void 1384ctl_ioctl_online(void *arg) 1385{ 1386 struct ctl_ioctl_info *ioctl_info; 1387 1388 ioctl_info = (struct ctl_ioctl_info *)arg; 1389 1390 ioctl_info->flags |= CTL_IOCTL_FLAG_ENABLED; 1391} 1392 1393static void 1394ctl_ioctl_offline(void *arg) 1395{ 1396 struct ctl_ioctl_info *ioctl_info; 1397 1398 ioctl_info = (struct ctl_ioctl_info *)arg; 1399 1400 ioctl_info->flags &= ~CTL_IOCTL_FLAG_ENABLED; 1401} 1402 1403/* 1404 * Remove an initiator by port number and initiator ID. 1405 * Returns 0 for success, -1 for failure. 1406 */ 1407int 1408ctl_remove_initiator(struct ctl_port *port, int iid) 1409{ 1410 struct ctl_softc *softc = control_softc; 1411 1412 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1413 1414 if (iid > CTL_MAX_INIT_PER_PORT) { 1415 printf("%s: initiator ID %u > maximun %u!\n", 1416 __func__, iid, CTL_MAX_INIT_PER_PORT); 1417 return (-1); 1418 } 1419 1420 mtx_lock(&softc->ctl_lock); 1421 port->wwpn_iid[iid].in_use--; 1422 port->wwpn_iid[iid].last_use = time_uptime; 1423 mtx_unlock(&softc->ctl_lock); 1424 1425 return (0); 1426} 1427 1428/* 1429 * Add an initiator to the initiator map. 1430 * Returns iid for success, < 0 for failure. 1431 */ 1432int 1433ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 1434{ 1435 struct ctl_softc *softc = control_softc; 1436 time_t best_time; 1437 int i, best; 1438 1439 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1440 1441 if (iid >= CTL_MAX_INIT_PER_PORT) { 1442 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 1443 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 1444 free(name, M_CTL); 1445 return (-1); 1446 } 1447 1448 mtx_lock(&softc->ctl_lock); 1449 1450 if (iid < 0 && (wwpn != 0 || name != NULL)) { 1451 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1452 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 1453 iid = i; 1454 break; 1455 } 1456 if (name != NULL && port->wwpn_iid[i].name != NULL && 1457 strcmp(name, port->wwpn_iid[i].name) == 0) { 1458 iid = i; 1459 break; 1460 } 1461 } 1462 } 1463 1464 if (iid < 0) { 1465 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1466 if (port->wwpn_iid[i].in_use == 0 && 1467 port->wwpn_iid[i].wwpn == 0 && 1468 port->wwpn_iid[i].name == NULL) { 1469 iid = i; 1470 break; 1471 } 1472 } 1473 } 1474 1475 if (iid < 0) { 1476 best = -1; 1477 best_time = INT32_MAX; 1478 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1479 if (port->wwpn_iid[i].in_use == 0) { 1480 if (port->wwpn_iid[i].last_use < best_time) { 1481 best = i; 1482 best_time = port->wwpn_iid[i].last_use; 1483 } 1484 } 1485 } 1486 iid = best; 1487 } 1488 1489 if (iid < 0) { 1490 mtx_unlock(&softc->ctl_lock); 1491 free(name, M_CTL); 1492 return (-2); 1493 } 1494 1495 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 1496 /* 1497 * This is not an error yet. 1498 */ 1499 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 1500#if 0 1501 printf("%s: port %d iid %u WWPN %#jx arrived" 1502 " again\n", __func__, port->targ_port, 1503 iid, (uintmax_t)wwpn); 1504#endif 1505 goto take; 1506 } 1507 if (name != NULL && port->wwpn_iid[iid].name != NULL && 1508 strcmp(name, port->wwpn_iid[iid].name) == 0) { 1509#if 0 1510 printf("%s: port %d iid %u name '%s' arrived" 1511 " again\n", __func__, port->targ_port, 1512 iid, name); 1513#endif 1514 goto take; 1515 } 1516 1517 /* 1518 * This is an error, but what do we do about it? The 1519 * driver is telling us we have a new WWPN for this 1520 * initiator ID, so we pretty much need to use it. 1521 */ 1522 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 1523 " but WWPN %#jx '%s' is still at that address\n", 1524 __func__, port->targ_port, iid, wwpn, name, 1525 (uintmax_t)port->wwpn_iid[iid].wwpn, 1526 port->wwpn_iid[iid].name); 1527 1528 /* 1529 * XXX KDM clear have_ca and ua_pending on each LUN for 1530 * this initiator. 1531 */ 1532 } 1533take: 1534 free(port->wwpn_iid[iid].name, M_CTL); 1535 port->wwpn_iid[iid].name = name; 1536 port->wwpn_iid[iid].wwpn = wwpn; 1537 port->wwpn_iid[iid].in_use++; 1538 mtx_unlock(&softc->ctl_lock); 1539 1540 return (iid); 1541} 1542 1543static int 1544ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 1545{ 1546 int len; 1547 1548 switch (port->port_type) { 1549 case CTL_PORT_FC: 1550 { 1551 struct scsi_transportid_fcp *id = 1552 (struct scsi_transportid_fcp *)buf; 1553 if (port->wwpn_iid[iid].wwpn == 0) 1554 return (0); 1555 memset(id, 0, sizeof(*id)); 1556 id->format_protocol = SCSI_PROTO_FC; 1557 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 1558 return (sizeof(*id)); 1559 } 1560 case CTL_PORT_ISCSI: 1561 { 1562 struct scsi_transportid_iscsi_port *id = 1563 (struct scsi_transportid_iscsi_port *)buf; 1564 if (port->wwpn_iid[iid].name == NULL) 1565 return (0); 1566 memset(id, 0, 256); 1567 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 1568 SCSI_PROTO_ISCSI; 1569 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 1570 len = roundup2(min(len, 252), 4); 1571 scsi_ulto2b(len, id->additional_length); 1572 return (sizeof(*id) + len); 1573 } 1574 case CTL_PORT_SAS: 1575 { 1576 struct scsi_transportid_sas *id = 1577 (struct scsi_transportid_sas *)buf; 1578 if (port->wwpn_iid[iid].wwpn == 0) 1579 return (0); 1580 memset(id, 0, sizeof(*id)); 1581 id->format_protocol = SCSI_PROTO_SAS; 1582 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 1583 return (sizeof(*id)); 1584 } 1585 default: 1586 { 1587 struct scsi_transportid_spi *id = 1588 (struct scsi_transportid_spi *)buf; 1589 memset(id, 0, sizeof(*id)); 1590 id->format_protocol = SCSI_PROTO_SPI; 1591 scsi_ulto2b(iid, id->scsi_addr); 1592 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 1593 return (sizeof(*id)); 1594 } 1595 } 1596} 1597 1598static int 1599ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id) 1600{ 1601 return (0); 1602} 1603 1604static int 1605ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id) 1606{ 1607 return (0); 1608} 1609 1610/* 1611 * Data movement routine for the CTL ioctl frontend port. 1612 */ 1613static int 1614ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio) 1615{ 1616 struct ctl_sg_entry *ext_sglist, *kern_sglist; 1617 struct ctl_sg_entry ext_entry, kern_entry; 1618 int ext_sglen, ext_sg_entries, kern_sg_entries; 1619 int ext_sg_start, ext_offset; 1620 int len_to_copy, len_copied; 1621 int kern_watermark, ext_watermark; 1622 int ext_sglist_malloced; 1623 int i, j; 1624 1625 ext_sglist_malloced = 0; 1626 ext_sg_start = 0; 1627 ext_offset = 0; 1628 1629 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove\n")); 1630 1631 /* 1632 * If this flag is set, fake the data transfer. 1633 */ 1634 if (ctsio->io_hdr.flags & CTL_FLAG_NO_DATAMOVE) { 1635 ctsio->ext_data_filled = ctsio->ext_data_len; 1636 goto bailout; 1637 } 1638 1639 /* 1640 * To simplify things here, if we have a single buffer, stick it in 1641 * a S/G entry and just make it a single entry S/G list. 1642 */ 1643 if (ctsio->io_hdr.flags & CTL_FLAG_EDPTR_SGLIST) { 1644 int len_seen; 1645 1646 ext_sglen = ctsio->ext_sg_entries * sizeof(*ext_sglist); 1647 1648 ext_sglist = (struct ctl_sg_entry *)malloc(ext_sglen, M_CTL, 1649 M_WAITOK); 1650 ext_sglist_malloced = 1; 1651 if (copyin(ctsio->ext_data_ptr, ext_sglist, 1652 ext_sglen) != 0) { 1653 ctl_set_internal_failure(ctsio, 1654 /*sks_valid*/ 0, 1655 /*retry_count*/ 0); 1656 goto bailout; 1657 } 1658 ext_sg_entries = ctsio->ext_sg_entries; 1659 len_seen = 0; 1660 for (i = 0; i < ext_sg_entries; i++) { 1661 if ((len_seen + ext_sglist[i].len) >= 1662 ctsio->ext_data_filled) { 1663 ext_sg_start = i; 1664 ext_offset = ctsio->ext_data_filled - len_seen; 1665 break; 1666 } 1667 len_seen += ext_sglist[i].len; 1668 } 1669 } else { 1670 ext_sglist = &ext_entry; 1671 ext_sglist->addr = ctsio->ext_data_ptr; 1672 ext_sglist->len = ctsio->ext_data_len; 1673 ext_sg_entries = 1; 1674 ext_sg_start = 0; 1675 ext_offset = ctsio->ext_data_filled; 1676 } 1677 1678 if (ctsio->kern_sg_entries > 0) { 1679 kern_sglist = (struct ctl_sg_entry *)ctsio->kern_data_ptr; 1680 kern_sg_entries = ctsio->kern_sg_entries; 1681 } else { 1682 kern_sglist = &kern_entry; 1683 kern_sglist->addr = ctsio->kern_data_ptr; 1684 kern_sglist->len = ctsio->kern_data_len; 1685 kern_sg_entries = 1; 1686 } 1687 1688 1689 kern_watermark = 0; 1690 ext_watermark = ext_offset; 1691 len_copied = 0; 1692 for (i = ext_sg_start, j = 0; 1693 i < ext_sg_entries && j < kern_sg_entries;) { 1694 uint8_t *ext_ptr, *kern_ptr; 1695 1696 len_to_copy = ctl_min(ext_sglist[i].len - ext_watermark, 1697 kern_sglist[j].len - kern_watermark); 1698 1699 ext_ptr = (uint8_t *)ext_sglist[i].addr; 1700 ext_ptr = ext_ptr + ext_watermark; 1701 if (ctsio->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 1702 /* 1703 * XXX KDM fix this! 1704 */ 1705 panic("need to implement bus address support"); 1706#if 0 1707 kern_ptr = bus_to_virt(kern_sglist[j].addr); 1708#endif 1709 } else 1710 kern_ptr = (uint8_t *)kern_sglist[j].addr; 1711 kern_ptr = kern_ptr + kern_watermark; 1712 1713 kern_watermark += len_to_copy; 1714 ext_watermark += len_to_copy; 1715 1716 if ((ctsio->io_hdr.flags & CTL_FLAG_DATA_MASK) == 1717 CTL_FLAG_DATA_IN) { 1718 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1719 "bytes to user\n", len_to_copy)); 1720 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1721 "to %p\n", kern_ptr, ext_ptr)); 1722 if (copyout(kern_ptr, ext_ptr, len_to_copy) != 0) { 1723 ctl_set_internal_failure(ctsio, 1724 /*sks_valid*/ 0, 1725 /*retry_count*/ 0); 1726 goto bailout; 1727 } 1728 } else { 1729 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1730 "bytes from user\n", len_to_copy)); 1731 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1732 "to %p\n", ext_ptr, kern_ptr)); 1733 if (copyin(ext_ptr, kern_ptr, len_to_copy)!= 0){ 1734 ctl_set_internal_failure(ctsio, 1735 /*sks_valid*/ 0, 1736 /*retry_count*/0); 1737 goto bailout; 1738 } 1739 } 1740 1741 len_copied += len_to_copy; 1742 1743 if (ext_sglist[i].len == ext_watermark) { 1744 i++; 1745 ext_watermark = 0; 1746 } 1747 1748 if (kern_sglist[j].len == kern_watermark) { 1749 j++; 1750 kern_watermark = 0; 1751 } 1752 } 1753 1754 ctsio->ext_data_filled += len_copied; 1755 1756 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_sg_entries: %d, " 1757 "kern_sg_entries: %d\n", ext_sg_entries, 1758 kern_sg_entries)); 1759 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_data_len = %d, " 1760 "kern_data_len = %d\n", ctsio->ext_data_len, 1761 ctsio->kern_data_len)); 1762 1763 1764 /* XXX KDM set residual?? */ 1765bailout: 1766 1767 if (ext_sglist_malloced != 0) 1768 free(ext_sglist, M_CTL); 1769 1770 return (CTL_RETVAL_COMPLETE); 1771} 1772 1773/* 1774 * Serialize a command that went down the "wrong" side, and so was sent to 1775 * this controller for execution. The logic is a little different than the 1776 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 1777 * sent back to the other side, but in the success case, we execute the 1778 * command on this side (XFER mode) or tell the other side to execute it 1779 * (SER_ONLY mode). 1780 */ 1781static int 1782ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 1783{ 1784 struct ctl_softc *ctl_softc; 1785 union ctl_ha_msg msg_info; 1786 struct ctl_lun *lun; 1787 int retval = 0; 1788 uint32_t targ_lun; 1789 1790 ctl_softc = control_softc; 1791 1792 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 1793 lun = ctl_softc->ctl_luns[targ_lun]; 1794 if (lun==NULL) 1795 { 1796 /* 1797 * Why isn't LUN defined? The other side wouldn't 1798 * send a cmd if the LUN is undefined. 1799 */ 1800 printf("%s: Bad JUJU!, LUN is NULL!\n", __func__); 1801 1802 /* "Logical unit not supported" */ 1803 ctl_set_sense_data(&msg_info.scsi.sense_data, 1804 lun, 1805 /*sense_format*/SSD_TYPE_NONE, 1806 /*current_error*/ 1, 1807 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1808 /*asc*/ 0x25, 1809 /*ascq*/ 0x00, 1810 SSD_ELEM_NONE); 1811 1812 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1813 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1814 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1815 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1816 msg_info.hdr.serializing_sc = NULL; 1817 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1818 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1819 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1820 } 1821 return(1); 1822 1823 } 1824 1825 mtx_lock(&lun->lun_lock); 1826 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1827 1828 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 1829 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 1830 ooa_links))) { 1831 case CTL_ACTION_BLOCK: 1832 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 1833 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 1834 blocked_links); 1835 break; 1836 case CTL_ACTION_PASS: 1837 case CTL_ACTION_SKIP: 1838 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 1839 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 1840 ctl_enqueue_rtr((union ctl_io *)ctsio); 1841 } else { 1842 1843 /* send msg back to other side */ 1844 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1845 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 1846 msg_info.hdr.msg_type = CTL_MSG_R2R; 1847#if 0 1848 printf("2. pOrig %x\n", (int)msg_info.hdr.original_sc); 1849#endif 1850 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1851 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1852 } 1853 } 1854 break; 1855 case CTL_ACTION_OVERLAP: 1856 /* OVERLAPPED COMMANDS ATTEMPTED */ 1857 ctl_set_sense_data(&msg_info.scsi.sense_data, 1858 lun, 1859 /*sense_format*/SSD_TYPE_NONE, 1860 /*current_error*/ 1, 1861 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1862 /*asc*/ 0x4E, 1863 /*ascq*/ 0x00, 1864 SSD_ELEM_NONE); 1865 1866 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1867 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1868 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1869 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1870 msg_info.hdr.serializing_sc = NULL; 1871 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1872#if 0 1873 printf("BAD JUJU:Major Bummer Overlap\n"); 1874#endif 1875 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1876 retval = 1; 1877 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1878 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1879 } 1880 break; 1881 case CTL_ACTION_OVERLAP_TAG: 1882 /* TAGGED OVERLAPPED COMMANDS (NN = QUEUE TAG) */ 1883 ctl_set_sense_data(&msg_info.scsi.sense_data, 1884 lun, 1885 /*sense_format*/SSD_TYPE_NONE, 1886 /*current_error*/ 1, 1887 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1888 /*asc*/ 0x4D, 1889 /*ascq*/ ctsio->tag_num & 0xff, 1890 SSD_ELEM_NONE); 1891 1892 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1893 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1894 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1895 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1896 msg_info.hdr.serializing_sc = NULL; 1897 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1898#if 0 1899 printf("BAD JUJU:Major Bummer Overlap Tag\n"); 1900#endif 1901 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1902 retval = 1; 1903 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1904 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1905 } 1906 break; 1907 case CTL_ACTION_ERROR: 1908 default: 1909 /* "Internal target failure" */ 1910 ctl_set_sense_data(&msg_info.scsi.sense_data, 1911 lun, 1912 /*sense_format*/SSD_TYPE_NONE, 1913 /*current_error*/ 1, 1914 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 1915 /*asc*/ 0x44, 1916 /*ascq*/ 0x00, 1917 SSD_ELEM_NONE); 1918 1919 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1920 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1921 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1922 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1923 msg_info.hdr.serializing_sc = NULL; 1924 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1925#if 0 1926 printf("BAD JUJU:Major Bummer HW Error\n"); 1927#endif 1928 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1929 retval = 1; 1930 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1931 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1932 } 1933 break; 1934 } 1935 mtx_unlock(&lun->lun_lock); 1936 return (retval); 1937} 1938 1939static int 1940ctl_ioctl_submit_wait(union ctl_io *io) 1941{ 1942 struct ctl_fe_ioctl_params params; 1943 ctl_fe_ioctl_state last_state; 1944 int done, retval; 1945 1946 retval = 0; 1947 1948 bzero(¶ms, sizeof(params)); 1949 1950 mtx_init(¶ms.ioctl_mtx, "ctliocmtx", NULL, MTX_DEF); 1951 cv_init(¶ms.sem, "ctlioccv"); 1952 params.state = CTL_IOCTL_INPROG; 1953 last_state = params.state; 1954 1955 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = ¶ms; 1956 1957 CTL_DEBUG_PRINT(("ctl_ioctl_submit_wait\n")); 1958 1959 /* This shouldn't happen */ 1960 if ((retval = ctl_queue(io)) != CTL_RETVAL_COMPLETE) 1961 return (retval); 1962 1963 done = 0; 1964 1965 do { 1966 mtx_lock(¶ms.ioctl_mtx); 1967 /* 1968 * Check the state here, and don't sleep if the state has 1969 * already changed (i.e. wakeup has already occured, but we 1970 * weren't waiting yet). 1971 */ 1972 if (params.state == last_state) { 1973 /* XXX KDM cv_wait_sig instead? */ 1974 cv_wait(¶ms.sem, ¶ms.ioctl_mtx); 1975 } 1976 last_state = params.state; 1977 1978 switch (params.state) { 1979 case CTL_IOCTL_INPROG: 1980 /* Why did we wake up? */ 1981 /* XXX KDM error here? */ 1982 mtx_unlock(¶ms.ioctl_mtx); 1983 break; 1984 case CTL_IOCTL_DATAMOVE: 1985 CTL_DEBUG_PRINT(("got CTL_IOCTL_DATAMOVE\n")); 1986 1987 /* 1988 * change last_state back to INPROG to avoid 1989 * deadlock on subsequent data moves. 1990 */ 1991 params.state = last_state = CTL_IOCTL_INPROG; 1992 1993 mtx_unlock(¶ms.ioctl_mtx); 1994 ctl_ioctl_do_datamove(&io->scsiio); 1995 /* 1996 * Note that in some cases, most notably writes, 1997 * this will queue the I/O and call us back later. 1998 * In other cases, generally reads, this routine 1999 * will immediately call back and wake us up, 2000 * probably using our own context. 2001 */ 2002 io->scsiio.be_move_done(io); 2003 break; 2004 case CTL_IOCTL_DONE: 2005 mtx_unlock(¶ms.ioctl_mtx); 2006 CTL_DEBUG_PRINT(("got CTL_IOCTL_DONE\n")); 2007 done = 1; 2008 break; 2009 default: 2010 mtx_unlock(¶ms.ioctl_mtx); 2011 /* XXX KDM error here? */ 2012 break; 2013 } 2014 } while (done == 0); 2015 2016 mtx_destroy(¶ms.ioctl_mtx); 2017 cv_destroy(¶ms.sem); 2018 2019 return (CTL_RETVAL_COMPLETE); 2020} 2021 2022static void 2023ctl_ioctl_datamove(union ctl_io *io) 2024{ 2025 struct ctl_fe_ioctl_params *params; 2026 2027 params = (struct ctl_fe_ioctl_params *) 2028 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 2029 2030 mtx_lock(¶ms->ioctl_mtx); 2031 params->state = CTL_IOCTL_DATAMOVE; 2032 cv_broadcast(¶ms->sem); 2033 mtx_unlock(¶ms->ioctl_mtx); 2034} 2035 2036static void 2037ctl_ioctl_done(union ctl_io *io) 2038{ 2039 struct ctl_fe_ioctl_params *params; 2040 2041 params = (struct ctl_fe_ioctl_params *) 2042 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 2043 2044 mtx_lock(¶ms->ioctl_mtx); 2045 params->state = CTL_IOCTL_DONE; 2046 cv_broadcast(¶ms->sem); 2047 mtx_unlock(¶ms->ioctl_mtx); 2048} 2049 2050static void 2051ctl_ioctl_hard_startstop_callback(void *arg, struct cfi_metatask *metatask) 2052{ 2053 struct ctl_fe_ioctl_startstop_info *sd_info; 2054 2055 sd_info = (struct ctl_fe_ioctl_startstop_info *)arg; 2056 2057 sd_info->hs_info.status = metatask->status; 2058 sd_info->hs_info.total_luns = metatask->taskinfo.startstop.total_luns; 2059 sd_info->hs_info.luns_complete = 2060 metatask->taskinfo.startstop.luns_complete; 2061 sd_info->hs_info.luns_failed = metatask->taskinfo.startstop.luns_failed; 2062 2063 cv_broadcast(&sd_info->sem); 2064} 2065 2066static void 2067ctl_ioctl_bbrread_callback(void *arg, struct cfi_metatask *metatask) 2068{ 2069 struct ctl_fe_ioctl_bbrread_info *fe_bbr_info; 2070 2071 fe_bbr_info = (struct ctl_fe_ioctl_bbrread_info *)arg; 2072 2073 mtx_lock(fe_bbr_info->lock); 2074 fe_bbr_info->bbr_info->status = metatask->status; 2075 fe_bbr_info->bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2076 fe_bbr_info->wakeup_done = 1; 2077 mtx_unlock(fe_bbr_info->lock); 2078 2079 cv_broadcast(&fe_bbr_info->sem); 2080} 2081 2082/* 2083 * Returns 0 for success, errno for failure. 2084 */ 2085static int 2086ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2087 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2088{ 2089 union ctl_io *io; 2090 int retval; 2091 2092 retval = 0; 2093 2094 mtx_lock(&lun->lun_lock); 2095 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2096 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2097 ooa_links)) { 2098 struct ctl_ooa_entry *entry; 2099 2100 /* 2101 * If we've got more than we can fit, just count the 2102 * remaining entries. 2103 */ 2104 if (*cur_fill_num >= ooa_hdr->alloc_num) 2105 continue; 2106 2107 entry = &kern_entries[*cur_fill_num]; 2108 2109 entry->tag_num = io->scsiio.tag_num; 2110 entry->lun_num = lun->lun; 2111#ifdef CTL_TIME_IO 2112 entry->start_bt = io->io_hdr.start_bt; 2113#endif 2114 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2115 entry->cdb_len = io->scsiio.cdb_len; 2116 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2117 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2118 2119 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2120 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2121 2122 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2123 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2124 2125 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2126 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2127 2128 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2129 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2130 } 2131 mtx_unlock(&lun->lun_lock); 2132 2133 return (retval); 2134} 2135 2136static void * 2137ctl_copyin_alloc(void *user_addr, int len, char *error_str, 2138 size_t error_str_len) 2139{ 2140 void *kptr; 2141 2142 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2143 2144 if (copyin(user_addr, kptr, len) != 0) { 2145 snprintf(error_str, error_str_len, "Error copying %d bytes " 2146 "from user address %p to kernel address %p", len, 2147 user_addr, kptr); 2148 free(kptr, M_CTL); 2149 return (NULL); 2150 } 2151 2152 return (kptr); 2153} 2154 2155static void 2156ctl_free_args(int num_args, struct ctl_be_arg *args) 2157{ 2158 int i; 2159 2160 if (args == NULL) 2161 return; 2162 2163 for (i = 0; i < num_args; i++) { 2164 free(args[i].kname, M_CTL); 2165 free(args[i].kvalue, M_CTL); 2166 } 2167 2168 free(args, M_CTL); 2169} 2170 2171static struct ctl_be_arg * 2172ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2173 char *error_str, size_t error_str_len) 2174{ 2175 struct ctl_be_arg *args; 2176 int i; 2177 2178 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2179 error_str, error_str_len); 2180 2181 if (args == NULL) 2182 goto bailout; 2183 2184 for (i = 0; i < num_args; i++) { 2185 args[i].kname = NULL; 2186 args[i].kvalue = NULL; 2187 } 2188 2189 for (i = 0; i < num_args; i++) { 2190 uint8_t *tmpptr; 2191 2192 args[i].kname = ctl_copyin_alloc(args[i].name, 2193 args[i].namelen, error_str, error_str_len); 2194 if (args[i].kname == NULL) 2195 goto bailout; 2196 2197 if (args[i].kname[args[i].namelen - 1] != '\0') { 2198 snprintf(error_str, error_str_len, "Argument %d " 2199 "name is not NUL-terminated", i); 2200 goto bailout; 2201 } 2202 2203 if (args[i].flags & CTL_BEARG_RD) { 2204 tmpptr = ctl_copyin_alloc(args[i].value, 2205 args[i].vallen, error_str, error_str_len); 2206 if (tmpptr == NULL) 2207 goto bailout; 2208 if ((args[i].flags & CTL_BEARG_ASCII) 2209 && (tmpptr[args[i].vallen - 1] != '\0')) { 2210 snprintf(error_str, error_str_len, "Argument " 2211 "%d value is not NUL-terminated", i); 2212 goto bailout; 2213 } 2214 args[i].kvalue = tmpptr; 2215 } else { 2216 args[i].kvalue = malloc(args[i].vallen, 2217 M_CTL, M_WAITOK | M_ZERO); 2218 } 2219 } 2220 2221 return (args); 2222bailout: 2223 2224 ctl_free_args(num_args, args); 2225 2226 return (NULL); 2227} 2228 2229static void 2230ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2231{ 2232 int i; 2233 2234 for (i = 0; i < num_args; i++) { 2235 if (args[i].flags & CTL_BEARG_WR) 2236 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2237 } 2238} 2239 2240/* 2241 * Escape characters that are illegal or not recommended in XML. 2242 */ 2243int 2244ctl_sbuf_printf_esc(struct sbuf *sb, char *str, int size) 2245{ 2246 char *end = str + size; 2247 int retval; 2248 2249 retval = 0; 2250 2251 for (; *str && str < end; str++) { 2252 switch (*str) { 2253 case '&': 2254 retval = sbuf_printf(sb, "&"); 2255 break; 2256 case '>': 2257 retval = sbuf_printf(sb, ">"); 2258 break; 2259 case '<': 2260 retval = sbuf_printf(sb, "<"); 2261 break; 2262 default: 2263 retval = sbuf_putc(sb, *str); 2264 break; 2265 } 2266 2267 if (retval != 0) 2268 break; 2269 2270 } 2271 2272 return (retval); 2273} 2274 2275static void 2276ctl_id_sbuf(struct ctl_devid *id, struct sbuf *sb) 2277{ 2278 struct scsi_vpd_id_descriptor *desc; 2279 int i; 2280 2281 if (id == NULL || id->len < 4) 2282 return; 2283 desc = (struct scsi_vpd_id_descriptor *)id->data; 2284 switch (desc->id_type & SVPD_ID_TYPE_MASK) { 2285 case SVPD_ID_TYPE_T10: 2286 sbuf_printf(sb, "t10."); 2287 break; 2288 case SVPD_ID_TYPE_EUI64: 2289 sbuf_printf(sb, "eui."); 2290 break; 2291 case SVPD_ID_TYPE_NAA: 2292 sbuf_printf(sb, "naa."); 2293 break; 2294 case SVPD_ID_TYPE_SCSI_NAME: 2295 break; 2296 } 2297 switch (desc->proto_codeset & SVPD_ID_CODESET_MASK) { 2298 case SVPD_ID_CODESET_BINARY: 2299 for (i = 0; i < desc->length; i++) 2300 sbuf_printf(sb, "%02x", desc->identifier[i]); 2301 break; 2302 case SVPD_ID_CODESET_ASCII: 2303 sbuf_printf(sb, "%.*s", (int)desc->length, 2304 (char *)desc->identifier); 2305 break; 2306 case SVPD_ID_CODESET_UTF8: 2307 sbuf_printf(sb, "%s", (char *)desc->identifier); 2308 break; 2309 } 2310} 2311 2312static int 2313ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2314 struct thread *td) 2315{ 2316 struct ctl_softc *softc; 2317 int retval; 2318 2319 softc = control_softc; 2320 2321 retval = 0; 2322 2323 switch (cmd) { 2324 case CTL_IO: { 2325 union ctl_io *io; 2326 void *pool_tmp; 2327 2328 /* 2329 * If we haven't been "enabled", don't allow any SCSI I/O 2330 * to this FETD. 2331 */ 2332 if ((softc->ioctl_info.flags & CTL_IOCTL_FLAG_ENABLED) == 0) { 2333 retval = EPERM; 2334 break; 2335 } 2336 2337 io = ctl_alloc_io(softc->ioctl_info.port.ctl_pool_ref); 2338 2339 /* 2340 * Need to save the pool reference so it doesn't get 2341 * spammed by the user's ctl_io. 2342 */ 2343 pool_tmp = io->io_hdr.pool; 2344 memcpy(io, (void *)addr, sizeof(*io)); 2345 io->io_hdr.pool = pool_tmp; 2346 2347 /* 2348 * No status yet, so make sure the status is set properly. 2349 */ 2350 io->io_hdr.status = CTL_STATUS_NONE; 2351 2352 /* 2353 * The user sets the initiator ID, target and LUN IDs. 2354 */ 2355 io->io_hdr.nexus.targ_port = softc->ioctl_info.port.targ_port; 2356 io->io_hdr.flags |= CTL_FLAG_USER_REQ; 2357 if ((io->io_hdr.io_type == CTL_IO_SCSI) 2358 && (io->scsiio.tag_type != CTL_TAG_UNTAGGED)) 2359 io->scsiio.tag_num = softc->ioctl_info.cur_tag_num++; 2360 2361 retval = ctl_ioctl_submit_wait(io); 2362 2363 if (retval != 0) { 2364 ctl_free_io(io); 2365 break; 2366 } 2367 2368 memcpy((void *)addr, io, sizeof(*io)); 2369 2370 /* return this to our pool */ 2371 ctl_free_io(io); 2372 2373 break; 2374 } 2375 case CTL_ENABLE_PORT: 2376 case CTL_DISABLE_PORT: 2377 case CTL_SET_PORT_WWNS: { 2378 struct ctl_port *port; 2379 struct ctl_port_entry *entry; 2380 2381 entry = (struct ctl_port_entry *)addr; 2382 2383 mtx_lock(&softc->ctl_lock); 2384 STAILQ_FOREACH(port, &softc->port_list, links) { 2385 int action, done; 2386 2387 action = 0; 2388 done = 0; 2389 2390 if ((entry->port_type == CTL_PORT_NONE) 2391 && (entry->targ_port == port->targ_port)) { 2392 /* 2393 * If the user only wants to enable or 2394 * disable or set WWNs on a specific port, 2395 * do the operation and we're done. 2396 */ 2397 action = 1; 2398 done = 1; 2399 } else if (entry->port_type & port->port_type) { 2400 /* 2401 * Compare the user's type mask with the 2402 * particular frontend type to see if we 2403 * have a match. 2404 */ 2405 action = 1; 2406 done = 0; 2407 2408 /* 2409 * Make sure the user isn't trying to set 2410 * WWNs on multiple ports at the same time. 2411 */ 2412 if (cmd == CTL_SET_PORT_WWNS) { 2413 printf("%s: Can't set WWNs on " 2414 "multiple ports\n", __func__); 2415 retval = EINVAL; 2416 break; 2417 } 2418 } 2419 if (action != 0) { 2420 /* 2421 * XXX KDM we have to drop the lock here, 2422 * because the online/offline operations 2423 * can potentially block. We need to 2424 * reference count the frontends so they 2425 * can't go away, 2426 */ 2427 mtx_unlock(&softc->ctl_lock); 2428 2429 if (cmd == CTL_ENABLE_PORT) { 2430 struct ctl_lun *lun; 2431 2432 STAILQ_FOREACH(lun, &softc->lun_list, 2433 links) { 2434 port->lun_enable(port->targ_lun_arg, 2435 lun->target, 2436 lun->lun); 2437 } 2438 2439 ctl_port_online(port); 2440 } else if (cmd == CTL_DISABLE_PORT) { 2441 struct ctl_lun *lun; 2442 2443 ctl_port_offline(port); 2444 2445 STAILQ_FOREACH(lun, &softc->lun_list, 2446 links) { 2447 port->lun_disable( 2448 port->targ_lun_arg, 2449 lun->target, 2450 lun->lun); 2451 } 2452 } 2453 2454 mtx_lock(&softc->ctl_lock); 2455 2456 if (cmd == CTL_SET_PORT_WWNS) 2457 ctl_port_set_wwns(port, 2458 (entry->flags & CTL_PORT_WWNN_VALID) ? 2459 1 : 0, entry->wwnn, 2460 (entry->flags & CTL_PORT_WWPN_VALID) ? 2461 1 : 0, entry->wwpn); 2462 } 2463 if (done != 0) 2464 break; 2465 } 2466 mtx_unlock(&softc->ctl_lock); 2467 break; 2468 } 2469 case CTL_GET_PORT_LIST: { 2470 struct ctl_port *port; 2471 struct ctl_port_list *list; 2472 int i; 2473 2474 list = (struct ctl_port_list *)addr; 2475 2476 if (list->alloc_len != (list->alloc_num * 2477 sizeof(struct ctl_port_entry))) { 2478 printf("%s: CTL_GET_PORT_LIST: alloc_len %u != " 2479 "alloc_num %u * sizeof(struct ctl_port_entry) " 2480 "%zu\n", __func__, list->alloc_len, 2481 list->alloc_num, sizeof(struct ctl_port_entry)); 2482 retval = EINVAL; 2483 break; 2484 } 2485 list->fill_len = 0; 2486 list->fill_num = 0; 2487 list->dropped_num = 0; 2488 i = 0; 2489 mtx_lock(&softc->ctl_lock); 2490 STAILQ_FOREACH(port, &softc->port_list, links) { 2491 struct ctl_port_entry entry, *list_entry; 2492 2493 if (list->fill_num >= list->alloc_num) { 2494 list->dropped_num++; 2495 continue; 2496 } 2497 2498 entry.port_type = port->port_type; 2499 strlcpy(entry.port_name, port->port_name, 2500 sizeof(entry.port_name)); 2501 entry.targ_port = port->targ_port; 2502 entry.physical_port = port->physical_port; 2503 entry.virtual_port = port->virtual_port; 2504 entry.wwnn = port->wwnn; 2505 entry.wwpn = port->wwpn; 2506 if (port->status & CTL_PORT_STATUS_ONLINE) 2507 entry.online = 1; 2508 else 2509 entry.online = 0; 2510 2511 list_entry = &list->entries[i]; 2512 2513 retval = copyout(&entry, list_entry, sizeof(entry)); 2514 if (retval != 0) { 2515 printf("%s: CTL_GET_PORT_LIST: copyout " 2516 "returned %d\n", __func__, retval); 2517 break; 2518 } 2519 i++; 2520 list->fill_num++; 2521 list->fill_len += sizeof(entry); 2522 } 2523 mtx_unlock(&softc->ctl_lock); 2524 2525 /* 2526 * If this is non-zero, we had a copyout fault, so there's 2527 * probably no point in attempting to set the status inside 2528 * the structure. 2529 */ 2530 if (retval != 0) 2531 break; 2532 2533 if (list->dropped_num > 0) 2534 list->status = CTL_PORT_LIST_NEED_MORE_SPACE; 2535 else 2536 list->status = CTL_PORT_LIST_OK; 2537 break; 2538 } 2539 case CTL_DUMP_OOA: { 2540 struct ctl_lun *lun; 2541 union ctl_io *io; 2542 char printbuf[128]; 2543 struct sbuf sb; 2544 2545 mtx_lock(&softc->ctl_lock); 2546 printf("Dumping OOA queues:\n"); 2547 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2548 mtx_lock(&lun->lun_lock); 2549 for (io = (union ctl_io *)TAILQ_FIRST( 2550 &lun->ooa_queue); io != NULL; 2551 io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2552 ooa_links)) { 2553 sbuf_new(&sb, printbuf, sizeof(printbuf), 2554 SBUF_FIXEDLEN); 2555 sbuf_printf(&sb, "LUN %jd tag 0x%04x%s%s%s%s: ", 2556 (intmax_t)lun->lun, 2557 io->scsiio.tag_num, 2558 (io->io_hdr.flags & 2559 CTL_FLAG_BLOCKED) ? "" : " BLOCKED", 2560 (io->io_hdr.flags & 2561 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 2562 (io->io_hdr.flags & 2563 CTL_FLAG_ABORT) ? " ABORT" : "", 2564 (io->io_hdr.flags & 2565 CTL_FLAG_IS_WAS_ON_RTR) ? " RTR" : ""); 2566 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 2567 sbuf_finish(&sb); 2568 printf("%s\n", sbuf_data(&sb)); 2569 } 2570 mtx_unlock(&lun->lun_lock); 2571 } 2572 printf("OOA queues dump done\n"); 2573 mtx_unlock(&softc->ctl_lock); 2574 break; 2575 } 2576 case CTL_GET_OOA: { 2577 struct ctl_lun *lun; 2578 struct ctl_ooa *ooa_hdr; 2579 struct ctl_ooa_entry *entries; 2580 uint32_t cur_fill_num; 2581 2582 ooa_hdr = (struct ctl_ooa *)addr; 2583 2584 if ((ooa_hdr->alloc_len == 0) 2585 || (ooa_hdr->alloc_num == 0)) { 2586 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2587 "must be non-zero\n", __func__, 2588 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2589 retval = EINVAL; 2590 break; 2591 } 2592 2593 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2594 sizeof(struct ctl_ooa_entry))) { 2595 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2596 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2597 __func__, ooa_hdr->alloc_len, 2598 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2599 retval = EINVAL; 2600 break; 2601 } 2602 2603 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2604 if (entries == NULL) { 2605 printf("%s: could not allocate %d bytes for OOA " 2606 "dump\n", __func__, ooa_hdr->alloc_len); 2607 retval = ENOMEM; 2608 break; 2609 } 2610 2611 mtx_lock(&softc->ctl_lock); 2612 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2613 && ((ooa_hdr->lun_num >= CTL_MAX_LUNS) 2614 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2615 mtx_unlock(&softc->ctl_lock); 2616 free(entries, M_CTL); 2617 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2618 __func__, (uintmax_t)ooa_hdr->lun_num); 2619 retval = EINVAL; 2620 break; 2621 } 2622 2623 cur_fill_num = 0; 2624 2625 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2626 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2627 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2628 ooa_hdr, entries); 2629 if (retval != 0) 2630 break; 2631 } 2632 if (retval != 0) { 2633 mtx_unlock(&softc->ctl_lock); 2634 free(entries, M_CTL); 2635 break; 2636 } 2637 } else { 2638 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2639 2640 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num,ooa_hdr, 2641 entries); 2642 } 2643 mtx_unlock(&softc->ctl_lock); 2644 2645 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2646 ooa_hdr->fill_len = ooa_hdr->fill_num * 2647 sizeof(struct ctl_ooa_entry); 2648 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2649 if (retval != 0) { 2650 printf("%s: error copying out %d bytes for OOA dump\n", 2651 __func__, ooa_hdr->fill_len); 2652 } 2653 2654 getbintime(&ooa_hdr->cur_bt); 2655 2656 if (cur_fill_num > ooa_hdr->alloc_num) { 2657 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2658 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2659 } else { 2660 ooa_hdr->dropped_num = 0; 2661 ooa_hdr->status = CTL_OOA_OK; 2662 } 2663 2664 free(entries, M_CTL); 2665 break; 2666 } 2667 case CTL_CHECK_OOA: { 2668 union ctl_io *io; 2669 struct ctl_lun *lun; 2670 struct ctl_ooa_info *ooa_info; 2671 2672 2673 ooa_info = (struct ctl_ooa_info *)addr; 2674 2675 if (ooa_info->lun_id >= CTL_MAX_LUNS) { 2676 ooa_info->status = CTL_OOA_INVALID_LUN; 2677 break; 2678 } 2679 mtx_lock(&softc->ctl_lock); 2680 lun = softc->ctl_luns[ooa_info->lun_id]; 2681 if (lun == NULL) { 2682 mtx_unlock(&softc->ctl_lock); 2683 ooa_info->status = CTL_OOA_INVALID_LUN; 2684 break; 2685 } 2686 mtx_lock(&lun->lun_lock); 2687 mtx_unlock(&softc->ctl_lock); 2688 ooa_info->num_entries = 0; 2689 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 2690 io != NULL; io = (union ctl_io *)TAILQ_NEXT( 2691 &io->io_hdr, ooa_links)) { 2692 ooa_info->num_entries++; 2693 } 2694 mtx_unlock(&lun->lun_lock); 2695 2696 ooa_info->status = CTL_OOA_SUCCESS; 2697 2698 break; 2699 } 2700 case CTL_HARD_START: 2701 case CTL_HARD_STOP: { 2702 struct ctl_fe_ioctl_startstop_info ss_info; 2703 struct cfi_metatask *metatask; 2704 struct mtx hs_mtx; 2705 2706 mtx_init(&hs_mtx, "HS Mutex", NULL, MTX_DEF); 2707 2708 cv_init(&ss_info.sem, "hard start/stop cv" ); 2709 2710 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2711 if (metatask == NULL) { 2712 retval = ENOMEM; 2713 mtx_destroy(&hs_mtx); 2714 break; 2715 } 2716 2717 if (cmd == CTL_HARD_START) 2718 metatask->tasktype = CFI_TASK_STARTUP; 2719 else 2720 metatask->tasktype = CFI_TASK_SHUTDOWN; 2721 2722 metatask->callback = ctl_ioctl_hard_startstop_callback; 2723 metatask->callback_arg = &ss_info; 2724 2725 cfi_action(metatask); 2726 2727 /* Wait for the callback */ 2728 mtx_lock(&hs_mtx); 2729 cv_wait_sig(&ss_info.sem, &hs_mtx); 2730 mtx_unlock(&hs_mtx); 2731 2732 /* 2733 * All information has been copied from the metatask by the 2734 * time cv_broadcast() is called, so we free the metatask here. 2735 */ 2736 cfi_free_metatask(metatask); 2737 2738 memcpy((void *)addr, &ss_info.hs_info, sizeof(ss_info.hs_info)); 2739 2740 mtx_destroy(&hs_mtx); 2741 break; 2742 } 2743 case CTL_BBRREAD: { 2744 struct ctl_bbrread_info *bbr_info; 2745 struct ctl_fe_ioctl_bbrread_info fe_bbr_info; 2746 struct mtx bbr_mtx; 2747 struct cfi_metatask *metatask; 2748 2749 bbr_info = (struct ctl_bbrread_info *)addr; 2750 2751 bzero(&fe_bbr_info, sizeof(fe_bbr_info)); 2752 2753 bzero(&bbr_mtx, sizeof(bbr_mtx)); 2754 mtx_init(&bbr_mtx, "BBR Mutex", NULL, MTX_DEF); 2755 2756 fe_bbr_info.bbr_info = bbr_info; 2757 fe_bbr_info.lock = &bbr_mtx; 2758 2759 cv_init(&fe_bbr_info.sem, "BBR read cv"); 2760 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2761 2762 if (metatask == NULL) { 2763 mtx_destroy(&bbr_mtx); 2764 cv_destroy(&fe_bbr_info.sem); 2765 retval = ENOMEM; 2766 break; 2767 } 2768 metatask->tasktype = CFI_TASK_BBRREAD; 2769 metatask->callback = ctl_ioctl_bbrread_callback; 2770 metatask->callback_arg = &fe_bbr_info; 2771 metatask->taskinfo.bbrread.lun_num = bbr_info->lun_num; 2772 metatask->taskinfo.bbrread.lba = bbr_info->lba; 2773 metatask->taskinfo.bbrread.len = bbr_info->len; 2774 2775 cfi_action(metatask); 2776 2777 mtx_lock(&bbr_mtx); 2778 while (fe_bbr_info.wakeup_done == 0) 2779 cv_wait_sig(&fe_bbr_info.sem, &bbr_mtx); 2780 mtx_unlock(&bbr_mtx); 2781 2782 bbr_info->status = metatask->status; 2783 bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2784 bbr_info->scsi_status = metatask->taskinfo.bbrread.scsi_status; 2785 memcpy(&bbr_info->sense_data, 2786 &metatask->taskinfo.bbrread.sense_data, 2787 ctl_min(sizeof(bbr_info->sense_data), 2788 sizeof(metatask->taskinfo.bbrread.sense_data))); 2789 2790 cfi_free_metatask(metatask); 2791 2792 mtx_destroy(&bbr_mtx); 2793 cv_destroy(&fe_bbr_info.sem); 2794 2795 break; 2796 } 2797 case CTL_DELAY_IO: { 2798 struct ctl_io_delay_info *delay_info; 2799#ifdef CTL_IO_DELAY 2800 struct ctl_lun *lun; 2801#endif /* CTL_IO_DELAY */ 2802 2803 delay_info = (struct ctl_io_delay_info *)addr; 2804 2805#ifdef CTL_IO_DELAY 2806 mtx_lock(&softc->ctl_lock); 2807 2808 if ((delay_info->lun_id >= CTL_MAX_LUNS) 2809 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2810 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2811 } else { 2812 lun = softc->ctl_luns[delay_info->lun_id]; 2813 mtx_lock(&lun->lun_lock); 2814 2815 delay_info->status = CTL_DELAY_STATUS_OK; 2816 2817 switch (delay_info->delay_type) { 2818 case CTL_DELAY_TYPE_CONT: 2819 break; 2820 case CTL_DELAY_TYPE_ONESHOT: 2821 break; 2822 default: 2823 delay_info->status = 2824 CTL_DELAY_STATUS_INVALID_TYPE; 2825 break; 2826 } 2827 2828 switch (delay_info->delay_loc) { 2829 case CTL_DELAY_LOC_DATAMOVE: 2830 lun->delay_info.datamove_type = 2831 delay_info->delay_type; 2832 lun->delay_info.datamove_delay = 2833 delay_info->delay_secs; 2834 break; 2835 case CTL_DELAY_LOC_DONE: 2836 lun->delay_info.done_type = 2837 delay_info->delay_type; 2838 lun->delay_info.done_delay = 2839 delay_info->delay_secs; 2840 break; 2841 default: 2842 delay_info->status = 2843 CTL_DELAY_STATUS_INVALID_LOC; 2844 break; 2845 } 2846 mtx_unlock(&lun->lun_lock); 2847 } 2848 2849 mtx_unlock(&softc->ctl_lock); 2850#else 2851 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2852#endif /* CTL_IO_DELAY */ 2853 break; 2854 } 2855 case CTL_REALSYNC_SET: { 2856 int *syncstate; 2857 2858 syncstate = (int *)addr; 2859 2860 mtx_lock(&softc->ctl_lock); 2861 switch (*syncstate) { 2862 case 0: 2863 softc->flags &= ~CTL_FLAG_REAL_SYNC; 2864 break; 2865 case 1: 2866 softc->flags |= CTL_FLAG_REAL_SYNC; 2867 break; 2868 default: 2869 retval = EINVAL; 2870 break; 2871 } 2872 mtx_unlock(&softc->ctl_lock); 2873 break; 2874 } 2875 case CTL_REALSYNC_GET: { 2876 int *syncstate; 2877 2878 syncstate = (int*)addr; 2879 2880 mtx_lock(&softc->ctl_lock); 2881 if (softc->flags & CTL_FLAG_REAL_SYNC) 2882 *syncstate = 1; 2883 else 2884 *syncstate = 0; 2885 mtx_unlock(&softc->ctl_lock); 2886 2887 break; 2888 } 2889 case CTL_SETSYNC: 2890 case CTL_GETSYNC: { 2891 struct ctl_sync_info *sync_info; 2892 struct ctl_lun *lun; 2893 2894 sync_info = (struct ctl_sync_info *)addr; 2895 2896 mtx_lock(&softc->ctl_lock); 2897 lun = softc->ctl_luns[sync_info->lun_id]; 2898 if (lun == NULL) { 2899 mtx_unlock(&softc->ctl_lock); 2900 sync_info->status = CTL_GS_SYNC_NO_LUN; 2901 } 2902 /* 2903 * Get or set the sync interval. We're not bounds checking 2904 * in the set case, hopefully the user won't do something 2905 * silly. 2906 */ 2907 mtx_lock(&lun->lun_lock); 2908 mtx_unlock(&softc->ctl_lock); 2909 if (cmd == CTL_GETSYNC) 2910 sync_info->sync_interval = lun->sync_interval; 2911 else 2912 lun->sync_interval = sync_info->sync_interval; 2913 mtx_unlock(&lun->lun_lock); 2914 2915 sync_info->status = CTL_GS_SYNC_OK; 2916 2917 break; 2918 } 2919 case CTL_GETSTATS: { 2920 struct ctl_stats *stats; 2921 struct ctl_lun *lun; 2922 int i; 2923 2924 stats = (struct ctl_stats *)addr; 2925 2926 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2927 stats->alloc_len) { 2928 stats->status = CTL_SS_NEED_MORE_SPACE; 2929 stats->num_luns = softc->num_luns; 2930 break; 2931 } 2932 /* 2933 * XXX KDM no locking here. If the LUN list changes, 2934 * things can blow up. 2935 */ 2936 for (i = 0, lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; 2937 i++, lun = STAILQ_NEXT(lun, links)) { 2938 retval = copyout(&lun->stats, &stats->lun_stats[i], 2939 sizeof(lun->stats)); 2940 if (retval != 0) 2941 break; 2942 } 2943 stats->num_luns = softc->num_luns; 2944 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2945 softc->num_luns; 2946 stats->status = CTL_SS_OK; 2947#ifdef CTL_TIME_IO 2948 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2949#else 2950 stats->flags = CTL_STATS_FLAG_NONE; 2951#endif 2952 getnanouptime(&stats->timestamp); 2953 break; 2954 } 2955 case CTL_ERROR_INJECT: { 2956 struct ctl_error_desc *err_desc, *new_err_desc; 2957 struct ctl_lun *lun; 2958 2959 err_desc = (struct ctl_error_desc *)addr; 2960 2961 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2962 M_WAITOK | M_ZERO); 2963 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2964 2965 mtx_lock(&softc->ctl_lock); 2966 lun = softc->ctl_luns[err_desc->lun_id]; 2967 if (lun == NULL) { 2968 mtx_unlock(&softc->ctl_lock); 2969 free(new_err_desc, M_CTL); 2970 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2971 __func__, (uintmax_t)err_desc->lun_id); 2972 retval = EINVAL; 2973 break; 2974 } 2975 mtx_lock(&lun->lun_lock); 2976 mtx_unlock(&softc->ctl_lock); 2977 2978 /* 2979 * We could do some checking here to verify the validity 2980 * of the request, but given the complexity of error 2981 * injection requests, the checking logic would be fairly 2982 * complex. 2983 * 2984 * For now, if the request is invalid, it just won't get 2985 * executed and might get deleted. 2986 */ 2987 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2988 2989 /* 2990 * XXX KDM check to make sure the serial number is unique, 2991 * in case we somehow manage to wrap. That shouldn't 2992 * happen for a very long time, but it's the right thing to 2993 * do. 2994 */ 2995 new_err_desc->serial = lun->error_serial; 2996 err_desc->serial = lun->error_serial; 2997 lun->error_serial++; 2998 2999 mtx_unlock(&lun->lun_lock); 3000 break; 3001 } 3002 case CTL_ERROR_INJECT_DELETE: { 3003 struct ctl_error_desc *delete_desc, *desc, *desc2; 3004 struct ctl_lun *lun; 3005 int delete_done; 3006 3007 delete_desc = (struct ctl_error_desc *)addr; 3008 delete_done = 0; 3009 3010 mtx_lock(&softc->ctl_lock); 3011 lun = softc->ctl_luns[delete_desc->lun_id]; 3012 if (lun == NULL) { 3013 mtx_unlock(&softc->ctl_lock); 3014 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 3015 __func__, (uintmax_t)delete_desc->lun_id); 3016 retval = EINVAL; 3017 break; 3018 } 3019 mtx_lock(&lun->lun_lock); 3020 mtx_unlock(&softc->ctl_lock); 3021 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 3022 if (desc->serial != delete_desc->serial) 3023 continue; 3024 3025 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 3026 links); 3027 free(desc, M_CTL); 3028 delete_done = 1; 3029 } 3030 mtx_unlock(&lun->lun_lock); 3031 if (delete_done == 0) { 3032 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 3033 "error serial %ju on LUN %u\n", __func__, 3034 delete_desc->serial, delete_desc->lun_id); 3035 retval = EINVAL; 3036 break; 3037 } 3038 break; 3039 } 3040 case CTL_DUMP_STRUCTS: { 3041 int i, j, k, idx; 3042 struct ctl_port *port; 3043 struct ctl_frontend *fe; 3044 3045 mtx_lock(&softc->ctl_lock); 3046 printf("CTL Persistent Reservation information start:\n"); 3047 for (i = 0; i < CTL_MAX_LUNS; i++) { 3048 struct ctl_lun *lun; 3049 3050 lun = softc->ctl_luns[i]; 3051 3052 if ((lun == NULL) 3053 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 3054 continue; 3055 3056 for (j = 0; j < (CTL_MAX_PORTS * 2); j++) { 3057 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 3058 idx = j * CTL_MAX_INIT_PER_PORT + k; 3059 if (lun->pr_keys[idx] == 0) 3060 continue; 3061 printf(" LUN %d port %d iid %d key " 3062 "%#jx\n", i, j, k, 3063 (uintmax_t)lun->pr_keys[idx]); 3064 } 3065 } 3066 } 3067 printf("CTL Persistent Reservation information end\n"); 3068 printf("CTL Ports:\n"); 3069 STAILQ_FOREACH(port, &softc->port_list, links) { 3070 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 3071 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 3072 port->frontend->name, port->port_type, 3073 port->physical_port, port->virtual_port, 3074 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 3075 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3076 if (port->wwpn_iid[j].in_use == 0 && 3077 port->wwpn_iid[j].wwpn == 0 && 3078 port->wwpn_iid[j].name == NULL) 3079 continue; 3080 3081 printf(" iid %u use %d WWPN %#jx '%s'\n", 3082 j, port->wwpn_iid[j].in_use, 3083 (uintmax_t)port->wwpn_iid[j].wwpn, 3084 port->wwpn_iid[j].name); 3085 } 3086 } 3087 printf("CTL Port information end\n"); 3088 mtx_unlock(&softc->ctl_lock); 3089 /* 3090 * XXX KDM calling this without a lock. We'd likely want 3091 * to drop the lock before calling the frontend's dump 3092 * routine anyway. 3093 */ 3094 printf("CTL Frontends:\n"); 3095 STAILQ_FOREACH(fe, &softc->fe_list, links) { 3096 printf(" Frontend '%s'\n", fe->name); 3097 if (fe->fe_dump != NULL) 3098 fe->fe_dump(); 3099 } 3100 printf("CTL Frontend information end\n"); 3101 break; 3102 } 3103 case CTL_LUN_REQ: { 3104 struct ctl_lun_req *lun_req; 3105 struct ctl_backend_driver *backend; 3106 3107 lun_req = (struct ctl_lun_req *)addr; 3108 3109 backend = ctl_backend_find(lun_req->backend); 3110 if (backend == NULL) { 3111 lun_req->status = CTL_LUN_ERROR; 3112 snprintf(lun_req->error_str, 3113 sizeof(lun_req->error_str), 3114 "Backend \"%s\" not found.", 3115 lun_req->backend); 3116 break; 3117 } 3118 if (lun_req->num_be_args > 0) { 3119 lun_req->kern_be_args = ctl_copyin_args( 3120 lun_req->num_be_args, 3121 lun_req->be_args, 3122 lun_req->error_str, 3123 sizeof(lun_req->error_str)); 3124 if (lun_req->kern_be_args == NULL) { 3125 lun_req->status = CTL_LUN_ERROR; 3126 break; 3127 } 3128 } 3129 3130 retval = backend->ioctl(dev, cmd, addr, flag, td); 3131 3132 if (lun_req->num_be_args > 0) { 3133 ctl_copyout_args(lun_req->num_be_args, 3134 lun_req->kern_be_args); 3135 ctl_free_args(lun_req->num_be_args, 3136 lun_req->kern_be_args); 3137 } 3138 break; 3139 } 3140 case CTL_LUN_LIST: { 3141 struct sbuf *sb; 3142 struct ctl_lun *lun; 3143 struct ctl_lun_list *list; 3144 struct ctl_option *opt; 3145 3146 list = (struct ctl_lun_list *)addr; 3147 3148 /* 3149 * Allocate a fixed length sbuf here, based on the length 3150 * of the user's buffer. We could allocate an auto-extending 3151 * buffer, and then tell the user how much larger our 3152 * amount of data is than his buffer, but that presents 3153 * some problems: 3154 * 3155 * 1. The sbuf(9) routines use a blocking malloc, and so 3156 * we can't hold a lock while calling them with an 3157 * auto-extending buffer. 3158 * 3159 * 2. There is not currently a LUN reference counting 3160 * mechanism, outside of outstanding transactions on 3161 * the LUN's OOA queue. So a LUN could go away on us 3162 * while we're getting the LUN number, backend-specific 3163 * information, etc. Thus, given the way things 3164 * currently work, we need to hold the CTL lock while 3165 * grabbing LUN information. 3166 * 3167 * So, from the user's standpoint, the best thing to do is 3168 * allocate what he thinks is a reasonable buffer length, 3169 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3170 * double the buffer length and try again. (And repeat 3171 * that until he succeeds.) 3172 */ 3173 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3174 if (sb == NULL) { 3175 list->status = CTL_LUN_LIST_ERROR; 3176 snprintf(list->error_str, sizeof(list->error_str), 3177 "Unable to allocate %d bytes for LUN list", 3178 list->alloc_len); 3179 break; 3180 } 3181 3182 sbuf_printf(sb, "<ctllunlist>\n"); 3183 3184 mtx_lock(&softc->ctl_lock); 3185 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3186 mtx_lock(&lun->lun_lock); 3187 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3188 (uintmax_t)lun->lun); 3189 3190 /* 3191 * Bail out as soon as we see that we've overfilled 3192 * the buffer. 3193 */ 3194 if (retval != 0) 3195 break; 3196 3197 retval = sbuf_printf(sb, "\t<backend_type>%s" 3198 "</backend_type>\n", 3199 (lun->backend == NULL) ? "none" : 3200 lun->backend->name); 3201 3202 if (retval != 0) 3203 break; 3204 3205 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3206 lun->be_lun->lun_type); 3207 3208 if (retval != 0) 3209 break; 3210 3211 if (lun->backend == NULL) { 3212 retval = sbuf_printf(sb, "</lun>\n"); 3213 if (retval != 0) 3214 break; 3215 continue; 3216 } 3217 3218 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3219 (lun->be_lun->maxlba > 0) ? 3220 lun->be_lun->maxlba + 1 : 0); 3221 3222 if (retval != 0) 3223 break; 3224 3225 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3226 lun->be_lun->blocksize); 3227 3228 if (retval != 0) 3229 break; 3230 3231 retval = sbuf_printf(sb, "\t<serial_number>"); 3232 3233 if (retval != 0) 3234 break; 3235 3236 retval = ctl_sbuf_printf_esc(sb, 3237 lun->be_lun->serial_num, 3238 sizeof(lun->be_lun->serial_num)); 3239 3240 if (retval != 0) 3241 break; 3242 3243 retval = sbuf_printf(sb, "</serial_number>\n"); 3244 3245 if (retval != 0) 3246 break; 3247 3248 retval = sbuf_printf(sb, "\t<device_id>"); 3249 3250 if (retval != 0) 3251 break; 3252 3253 retval = ctl_sbuf_printf_esc(sb, 3254 lun->be_lun->device_id, 3255 sizeof(lun->be_lun->device_id)); 3256 3257 if (retval != 0) 3258 break; 3259 3260 retval = sbuf_printf(sb, "</device_id>\n"); 3261 3262 if (retval != 0) 3263 break; 3264 3265 if (lun->backend->lun_info != NULL) { 3266 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3267 if (retval != 0) 3268 break; 3269 } 3270 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3271 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3272 opt->name, opt->value, opt->name); 3273 if (retval != 0) 3274 break; 3275 } 3276 3277 retval = sbuf_printf(sb, "</lun>\n"); 3278 3279 if (retval != 0) 3280 break; 3281 mtx_unlock(&lun->lun_lock); 3282 } 3283 if (lun != NULL) 3284 mtx_unlock(&lun->lun_lock); 3285 mtx_unlock(&softc->ctl_lock); 3286 3287 if ((retval != 0) 3288 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3289 retval = 0; 3290 sbuf_delete(sb); 3291 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3292 snprintf(list->error_str, sizeof(list->error_str), 3293 "Out of space, %d bytes is too small", 3294 list->alloc_len); 3295 break; 3296 } 3297 3298 sbuf_finish(sb); 3299 3300 retval = copyout(sbuf_data(sb), list->lun_xml, 3301 sbuf_len(sb) + 1); 3302 3303 list->fill_len = sbuf_len(sb) + 1; 3304 list->status = CTL_LUN_LIST_OK; 3305 sbuf_delete(sb); 3306 break; 3307 } 3308 case CTL_ISCSI: { 3309 struct ctl_iscsi *ci; 3310 struct ctl_frontend *fe; 3311 3312 ci = (struct ctl_iscsi *)addr; 3313 3314 fe = ctl_frontend_find("iscsi"); 3315 if (fe == NULL) { 3316 ci->status = CTL_ISCSI_ERROR; 3317 snprintf(ci->error_str, sizeof(ci->error_str), 3318 "Frontend \"iscsi\" not found."); 3319 break; 3320 } 3321 3322 retval = fe->ioctl(dev, cmd, addr, flag, td); 3323 break; 3324 } 3325 case CTL_PORT_REQ: { 3326 struct ctl_req *req; 3327 struct ctl_frontend *fe; 3328 3329 req = (struct ctl_req *)addr; 3330 3331 fe = ctl_frontend_find(req->driver); 3332 if (fe == NULL) { 3333 req->status = CTL_LUN_ERROR; 3334 snprintf(req->error_str, sizeof(req->error_str), 3335 "Frontend \"%s\" not found.", req->driver); 3336 break; 3337 } 3338 if (req->num_args > 0) { 3339 req->kern_args = ctl_copyin_args(req->num_args, 3340 req->args, req->error_str, sizeof(req->error_str)); 3341 if (req->kern_args == NULL) { 3342 req->status = CTL_LUN_ERROR; 3343 break; 3344 } 3345 } 3346 3347 retval = fe->ioctl(dev, cmd, addr, flag, td); 3348 3349 if (req->num_args > 0) { 3350 ctl_copyout_args(req->num_args, req->kern_args); 3351 ctl_free_args(req->num_args, req->kern_args); 3352 } 3353 break; 3354 } 3355 case CTL_PORT_LIST: { 3356 struct sbuf *sb; 3357 struct ctl_port *port; 3358 struct ctl_lun_list *list; 3359 struct ctl_option *opt; 3360 int j; 3361 3362 list = (struct ctl_lun_list *)addr; 3363 3364 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3365 if (sb == NULL) { 3366 list->status = CTL_LUN_LIST_ERROR; 3367 snprintf(list->error_str, sizeof(list->error_str), 3368 "Unable to allocate %d bytes for LUN list", 3369 list->alloc_len); 3370 break; 3371 } 3372 3373 sbuf_printf(sb, "<ctlportlist>\n"); 3374 3375 mtx_lock(&softc->ctl_lock); 3376 STAILQ_FOREACH(port, &softc->port_list, links) { 3377 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3378 (uintmax_t)port->targ_port); 3379 3380 /* 3381 * Bail out as soon as we see that we've overfilled 3382 * the buffer. 3383 */ 3384 if (retval != 0) 3385 break; 3386 3387 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3388 "</frontend_type>\n", port->frontend->name); 3389 if (retval != 0) 3390 break; 3391 3392 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3393 port->port_type); 3394 if (retval != 0) 3395 break; 3396 3397 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3398 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3399 if (retval != 0) 3400 break; 3401 3402 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3403 port->port_name); 3404 if (retval != 0) 3405 break; 3406 3407 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3408 port->physical_port); 3409 if (retval != 0) 3410 break; 3411 3412 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3413 port->virtual_port); 3414 if (retval != 0) 3415 break; 3416 3417 if (port->target_devid != NULL) { 3418 sbuf_printf(sb, "\t<target>"); 3419 ctl_id_sbuf(port->target_devid, sb); 3420 sbuf_printf(sb, "</target>\n"); 3421 } 3422 3423 if (port->port_devid != NULL) { 3424 sbuf_printf(sb, "\t<port>"); 3425 ctl_id_sbuf(port->port_devid, sb); 3426 sbuf_printf(sb, "</port>\n"); 3427 } 3428 3429 if (port->port_info != NULL) { 3430 retval = port->port_info(port->onoff_arg, sb); 3431 if (retval != 0) 3432 break; 3433 } 3434 STAILQ_FOREACH(opt, &port->options, links) { 3435 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3436 opt->name, opt->value, opt->name); 3437 if (retval != 0) 3438 break; 3439 } 3440 3441 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3442 if (port->wwpn_iid[j].in_use == 0 || 3443 (port->wwpn_iid[j].wwpn == 0 && 3444 port->wwpn_iid[j].name == NULL)) 3445 continue; 3446 3447 if (port->wwpn_iid[j].name != NULL) 3448 retval = sbuf_printf(sb, 3449 "\t<initiator>%u %s</initiator>\n", 3450 j, port->wwpn_iid[j].name); 3451 else 3452 retval = sbuf_printf(sb, 3453 "\t<initiator>%u naa.%08jx</initiator>\n", 3454 j, port->wwpn_iid[j].wwpn); 3455 if (retval != 0) 3456 break; 3457 } 3458 if (retval != 0) 3459 break; 3460 3461 retval = sbuf_printf(sb, "</targ_port>\n"); 3462 if (retval != 0) 3463 break; 3464 } 3465 mtx_unlock(&softc->ctl_lock); 3466 3467 if ((retval != 0) 3468 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3469 retval = 0; 3470 sbuf_delete(sb); 3471 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3472 snprintf(list->error_str, sizeof(list->error_str), 3473 "Out of space, %d bytes is too small", 3474 list->alloc_len); 3475 break; 3476 } 3477 3478 sbuf_finish(sb); 3479 3480 retval = copyout(sbuf_data(sb), list->lun_xml, 3481 sbuf_len(sb) + 1); 3482 3483 list->fill_len = sbuf_len(sb) + 1; 3484 list->status = CTL_LUN_LIST_OK; 3485 sbuf_delete(sb); 3486 break; 3487 } 3488 default: { 3489 /* XXX KDM should we fix this? */ 3490#if 0 3491 struct ctl_backend_driver *backend; 3492 unsigned int type; 3493 int found; 3494 3495 found = 0; 3496 3497 /* 3498 * We encode the backend type as the ioctl type for backend 3499 * ioctls. So parse it out here, and then search for a 3500 * backend of this type. 3501 */ 3502 type = _IOC_TYPE(cmd); 3503 3504 STAILQ_FOREACH(backend, &softc->be_list, links) { 3505 if (backend->type == type) { 3506 found = 1; 3507 break; 3508 } 3509 } 3510 if (found == 0) { 3511 printf("ctl: unknown ioctl command %#lx or backend " 3512 "%d\n", cmd, type); 3513 retval = EINVAL; 3514 break; 3515 } 3516 retval = backend->ioctl(dev, cmd, addr, flag, td); 3517#endif 3518 retval = ENOTTY; 3519 break; 3520 } 3521 } 3522 return (retval); 3523} 3524 3525uint32_t 3526ctl_get_initindex(struct ctl_nexus *nexus) 3527{ 3528 if (nexus->targ_port < CTL_MAX_PORTS) 3529 return (nexus->initid.id + 3530 (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3531 else 3532 return (nexus->initid.id + 3533 ((nexus->targ_port - CTL_MAX_PORTS) * 3534 CTL_MAX_INIT_PER_PORT)); 3535} 3536 3537uint32_t 3538ctl_get_resindex(struct ctl_nexus *nexus) 3539{ 3540 return (nexus->initid.id + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3541} 3542 3543uint32_t 3544ctl_port_idx(int port_num) 3545{ 3546 if (port_num < CTL_MAX_PORTS) 3547 return(port_num); 3548 else 3549 return(port_num - CTL_MAX_PORTS); 3550} 3551 3552static uint32_t 3553ctl_map_lun(int port_num, uint32_t lun_id) 3554{ 3555 struct ctl_port *port; 3556 3557 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3558 if (port == NULL) 3559 return (UINT32_MAX); 3560 if (port->lun_map == NULL) 3561 return (lun_id); 3562 return (port->lun_map(port->targ_lun_arg, lun_id)); 3563} 3564 3565static uint32_t 3566ctl_map_lun_back(int port_num, uint32_t lun_id) 3567{ 3568 struct ctl_port *port; 3569 uint32_t i; 3570 3571 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3572 if (port->lun_map == NULL) 3573 return (lun_id); 3574 for (i = 0; i < CTL_MAX_LUNS; i++) { 3575 if (port->lun_map(port->targ_lun_arg, i) == lun_id) 3576 return (i); 3577 } 3578 return (UINT32_MAX); 3579} 3580 3581/* 3582 * Note: This only works for bitmask sizes that are at least 32 bits, and 3583 * that are a power of 2. 3584 */ 3585int 3586ctl_ffz(uint32_t *mask, uint32_t size) 3587{ 3588 uint32_t num_chunks, num_pieces; 3589 int i, j; 3590 3591 num_chunks = (size >> 5); 3592 if (num_chunks == 0) 3593 num_chunks++; 3594 num_pieces = ctl_min((sizeof(uint32_t) * 8), size); 3595 3596 for (i = 0; i < num_chunks; i++) { 3597 for (j = 0; j < num_pieces; j++) { 3598 if ((mask[i] & (1 << j)) == 0) 3599 return ((i << 5) + j); 3600 } 3601 } 3602 3603 return (-1); 3604} 3605 3606int 3607ctl_set_mask(uint32_t *mask, uint32_t bit) 3608{ 3609 uint32_t chunk, piece; 3610 3611 chunk = bit >> 5; 3612 piece = bit % (sizeof(uint32_t) * 8); 3613 3614 if ((mask[chunk] & (1 << piece)) != 0) 3615 return (-1); 3616 else 3617 mask[chunk] |= (1 << piece); 3618 3619 return (0); 3620} 3621 3622int 3623ctl_clear_mask(uint32_t *mask, uint32_t bit) 3624{ 3625 uint32_t chunk, piece; 3626 3627 chunk = bit >> 5; 3628 piece = bit % (sizeof(uint32_t) * 8); 3629 3630 if ((mask[chunk] & (1 << piece)) == 0) 3631 return (-1); 3632 else 3633 mask[chunk] &= ~(1 << piece); 3634 3635 return (0); 3636} 3637 3638int 3639ctl_is_set(uint32_t *mask, uint32_t bit) 3640{ 3641 uint32_t chunk, piece; 3642 3643 chunk = bit >> 5; 3644 piece = bit % (sizeof(uint32_t) * 8); 3645 3646 if ((mask[chunk] & (1 << piece)) == 0) 3647 return (0); 3648 else 3649 return (1); 3650} 3651 3652#ifdef unused 3653/* 3654 * The bus, target and lun are optional, they can be filled in later. 3655 * can_wait is used to determine whether we can wait on the malloc or not. 3656 */ 3657union ctl_io* 3658ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, uint32_t targ_target, 3659 uint32_t targ_lun, int can_wait) 3660{ 3661 union ctl_io *io; 3662 3663 if (can_wait) 3664 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_WAITOK); 3665 else 3666 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_NOWAIT); 3667 3668 if (io != NULL) { 3669 io->io_hdr.io_type = io_type; 3670 io->io_hdr.targ_port = targ_port; 3671 /* 3672 * XXX KDM this needs to change/go away. We need to move 3673 * to a preallocated pool of ctl_scsiio structures. 3674 */ 3675 io->io_hdr.nexus.targ_target.id = targ_target; 3676 io->io_hdr.nexus.targ_lun = targ_lun; 3677 } 3678 3679 return (io); 3680} 3681 3682void 3683ctl_kfree_io(union ctl_io *io) 3684{ 3685 free(io, M_CTL); 3686} 3687#endif /* unused */ 3688 3689/* 3690 * ctl_softc, pool_name, total_ctl_io are passed in. 3691 * npool is passed out. 3692 */ 3693int 3694ctl_pool_create(struct ctl_softc *ctl_softc, const char *pool_name, 3695 uint32_t total_ctl_io, void **npool) 3696{ 3697#ifdef IO_POOLS 3698 struct ctl_io_pool *pool; 3699 3700 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3701 M_NOWAIT | M_ZERO); 3702 if (pool == NULL) 3703 return (ENOMEM); 3704 3705 snprintf(pool->name, sizeof(pool->name), "CTL IO %s", pool_name); 3706 pool->ctl_softc = ctl_softc; 3707 pool->zone = uma_zsecond_create(pool->name, NULL, 3708 NULL, NULL, NULL, ctl_softc->io_zone); 3709 /* uma_prealloc(pool->zone, total_ctl_io); */ 3710 3711 *npool = pool; 3712#else 3713 *npool = ctl_softc->io_zone; 3714#endif 3715 return (0); 3716} 3717 3718void 3719ctl_pool_free(struct ctl_io_pool *pool) 3720{ 3721 3722 if (pool == NULL) 3723 return; 3724 3725#ifdef IO_POOLS 3726 uma_zdestroy(pool->zone); 3727 free(pool, M_CTL); 3728#endif 3729} 3730 3731union ctl_io * 3732ctl_alloc_io(void *pool_ref) 3733{ 3734 union ctl_io *io; 3735#ifdef IO_POOLS 3736 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3737 3738 io = uma_zalloc(pool->zone, M_WAITOK); 3739#else 3740 io = uma_zalloc((uma_zone_t)pool_ref, M_WAITOK); 3741#endif 3742 if (io != NULL) 3743 io->io_hdr.pool = pool_ref; 3744 return (io); 3745} 3746 3747union ctl_io * 3748ctl_alloc_io_nowait(void *pool_ref) 3749{ 3750 union ctl_io *io; 3751#ifdef IO_POOLS 3752 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3753 3754 io = uma_zalloc(pool->zone, M_NOWAIT); 3755#else 3756 io = uma_zalloc((uma_zone_t)pool_ref, M_NOWAIT); 3757#endif 3758 if (io != NULL) 3759 io->io_hdr.pool = pool_ref; 3760 return (io); 3761} 3762 3763void 3764ctl_free_io(union ctl_io *io) 3765{ 3766#ifdef IO_POOLS 3767 struct ctl_io_pool *pool; 3768#endif 3769 3770 if (io == NULL) 3771 return; 3772 3773#ifdef IO_POOLS 3774 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3775 uma_zfree(pool->zone, io); 3776#else 3777 uma_zfree((uma_zone_t)io->io_hdr.pool, io); 3778#endif 3779} 3780 3781void 3782ctl_zero_io(union ctl_io *io) 3783{ 3784 void *pool_ref; 3785 3786 if (io == NULL) 3787 return; 3788 3789 /* 3790 * May need to preserve linked list pointers at some point too. 3791 */ 3792 pool_ref = io->io_hdr.pool; 3793 memset(io, 0, sizeof(*io)); 3794 io->io_hdr.pool = pool_ref; 3795} 3796 3797/* 3798 * This routine is currently used for internal copies of ctl_ios that need 3799 * to persist for some reason after we've already returned status to the 3800 * FETD. (Thus the flag set.) 3801 * 3802 * XXX XXX 3803 * Note that this makes a blind copy of all fields in the ctl_io, except 3804 * for the pool reference. This includes any memory that has been 3805 * allocated! That memory will no longer be valid after done has been 3806 * called, so this would be VERY DANGEROUS for command that actually does 3807 * any reads or writes. Right now (11/7/2005), this is only used for immediate 3808 * start and stop commands, which don't transfer any data, so this is not a 3809 * problem. If it is used for anything else, the caller would also need to 3810 * allocate data buffer space and this routine would need to be modified to 3811 * copy the data buffer(s) as well. 3812 */ 3813void 3814ctl_copy_io(union ctl_io *src, union ctl_io *dest) 3815{ 3816 void *pool_ref; 3817 3818 if ((src == NULL) 3819 || (dest == NULL)) 3820 return; 3821 3822 /* 3823 * May need to preserve linked list pointers at some point too. 3824 */ 3825 pool_ref = dest->io_hdr.pool; 3826 3827 memcpy(dest, src, ctl_min(sizeof(*src), sizeof(*dest))); 3828 3829 dest->io_hdr.pool = pool_ref; 3830 /* 3831 * We need to know that this is an internal copy, and doesn't need 3832 * to get passed back to the FETD that allocated it. 3833 */ 3834 dest->io_hdr.flags |= CTL_FLAG_INT_COPY; 3835} 3836 3837static int 3838ctl_expand_number(const char *buf, uint64_t *num) 3839{ 3840 char *endptr; 3841 uint64_t number; 3842 unsigned shift; 3843 3844 number = strtoq(buf, &endptr, 0); 3845 3846 switch (tolower((unsigned char)*endptr)) { 3847 case 'e': 3848 shift = 60; 3849 break; 3850 case 'p': 3851 shift = 50; 3852 break; 3853 case 't': 3854 shift = 40; 3855 break; 3856 case 'g': 3857 shift = 30; 3858 break; 3859 case 'm': 3860 shift = 20; 3861 break; 3862 case 'k': 3863 shift = 10; 3864 break; 3865 case 'b': 3866 case '\0': /* No unit. */ 3867 *num = number; 3868 return (0); 3869 default: 3870 /* Unrecognized unit. */ 3871 return (-1); 3872 } 3873 3874 if ((number << shift) >> shift != number) { 3875 /* Overflow */ 3876 return (-1); 3877 } 3878 *num = number << shift; 3879 return (0); 3880} 3881 3882 3883/* 3884 * This routine could be used in the future to load default and/or saved 3885 * mode page parameters for a particuar lun. 3886 */ 3887static int 3888ctl_init_page_index(struct ctl_lun *lun) 3889{ 3890 int i; 3891 struct ctl_page_index *page_index; 3892 const char *value; 3893 uint64_t ival; 3894 3895 memcpy(&lun->mode_pages.index, page_index_template, 3896 sizeof(page_index_template)); 3897 3898 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 3899 3900 page_index = &lun->mode_pages.index[i]; 3901 /* 3902 * If this is a disk-only mode page, there's no point in 3903 * setting it up. For some pages, we have to have some 3904 * basic information about the disk in order to calculate the 3905 * mode page data. 3906 */ 3907 if ((lun->be_lun->lun_type != T_DIRECT) 3908 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 3909 continue; 3910 3911 switch (page_index->page_code & SMPH_PC_MASK) { 3912 case SMS_RW_ERROR_RECOVERY_PAGE: { 3913 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3914 panic("subpage is incorrect!"); 3915 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT], 3916 &rw_er_page_default, 3917 sizeof(rw_er_page_default)); 3918 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CHANGEABLE], 3919 &rw_er_page_changeable, 3920 sizeof(rw_er_page_changeable)); 3921 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_DEFAULT], 3922 &rw_er_page_default, 3923 sizeof(rw_er_page_default)); 3924 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_SAVED], 3925 &rw_er_page_default, 3926 sizeof(rw_er_page_default)); 3927 page_index->page_data = 3928 (uint8_t *)lun->mode_pages.rw_er_page; 3929 break; 3930 } 3931 case SMS_FORMAT_DEVICE_PAGE: { 3932 struct scsi_format_page *format_page; 3933 3934 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3935 panic("subpage is incorrect!"); 3936 3937 /* 3938 * Sectors per track are set above. Bytes per 3939 * sector need to be set here on a per-LUN basis. 3940 */ 3941 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 3942 &format_page_default, 3943 sizeof(format_page_default)); 3944 memcpy(&lun->mode_pages.format_page[ 3945 CTL_PAGE_CHANGEABLE], &format_page_changeable, 3946 sizeof(format_page_changeable)); 3947 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 3948 &format_page_default, 3949 sizeof(format_page_default)); 3950 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 3951 &format_page_default, 3952 sizeof(format_page_default)); 3953 3954 format_page = &lun->mode_pages.format_page[ 3955 CTL_PAGE_CURRENT]; 3956 scsi_ulto2b(lun->be_lun->blocksize, 3957 format_page->bytes_per_sector); 3958 3959 format_page = &lun->mode_pages.format_page[ 3960 CTL_PAGE_DEFAULT]; 3961 scsi_ulto2b(lun->be_lun->blocksize, 3962 format_page->bytes_per_sector); 3963 3964 format_page = &lun->mode_pages.format_page[ 3965 CTL_PAGE_SAVED]; 3966 scsi_ulto2b(lun->be_lun->blocksize, 3967 format_page->bytes_per_sector); 3968 3969 page_index->page_data = 3970 (uint8_t *)lun->mode_pages.format_page; 3971 break; 3972 } 3973 case SMS_RIGID_DISK_PAGE: { 3974 struct scsi_rigid_disk_page *rigid_disk_page; 3975 uint32_t sectors_per_cylinder; 3976 uint64_t cylinders; 3977#ifndef __XSCALE__ 3978 int shift; 3979#endif /* !__XSCALE__ */ 3980 3981 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3982 panic("invalid subpage value %d", 3983 page_index->subpage); 3984 3985 /* 3986 * Rotation rate and sectors per track are set 3987 * above. We calculate the cylinders here based on 3988 * capacity. Due to the number of heads and 3989 * sectors per track we're using, smaller arrays 3990 * may turn out to have 0 cylinders. Linux and 3991 * FreeBSD don't pay attention to these mode pages 3992 * to figure out capacity, but Solaris does. It 3993 * seems to deal with 0 cylinders just fine, and 3994 * works out a fake geometry based on the capacity. 3995 */ 3996 memcpy(&lun->mode_pages.rigid_disk_page[ 3997 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 3998 sizeof(rigid_disk_page_default)); 3999 memcpy(&lun->mode_pages.rigid_disk_page[ 4000 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4001 sizeof(rigid_disk_page_changeable)); 4002 4003 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4004 CTL_DEFAULT_HEADS; 4005 4006 /* 4007 * The divide method here will be more accurate, 4008 * probably, but results in floating point being 4009 * used in the kernel on i386 (__udivdi3()). On the 4010 * XScale, though, __udivdi3() is implemented in 4011 * software. 4012 * 4013 * The shift method for cylinder calculation is 4014 * accurate if sectors_per_cylinder is a power of 4015 * 2. Otherwise it might be slightly off -- you 4016 * might have a bit of a truncation problem. 4017 */ 4018#ifdef __XSCALE__ 4019 cylinders = (lun->be_lun->maxlba + 1) / 4020 sectors_per_cylinder; 4021#else 4022 for (shift = 31; shift > 0; shift--) { 4023 if (sectors_per_cylinder & (1 << shift)) 4024 break; 4025 } 4026 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4027#endif 4028 4029 /* 4030 * We've basically got 3 bytes, or 24 bits for the 4031 * cylinder size in the mode page. If we're over, 4032 * just round down to 2^24. 4033 */ 4034 if (cylinders > 0xffffff) 4035 cylinders = 0xffffff; 4036 4037 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4038 CTL_PAGE_DEFAULT]; 4039 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4040 4041 if ((value = ctl_get_opt(&lun->be_lun->options, 4042 "rpm")) != NULL) { 4043 scsi_ulto2b(strtol(value, NULL, 0), 4044 rigid_disk_page->rotation_rate); 4045 } 4046 4047 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_CURRENT], 4048 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4049 sizeof(rigid_disk_page_default)); 4050 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_SAVED], 4051 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4052 sizeof(rigid_disk_page_default)); 4053 4054 page_index->page_data = 4055 (uint8_t *)lun->mode_pages.rigid_disk_page; 4056 break; 4057 } 4058 case SMS_CACHING_PAGE: { 4059 struct scsi_caching_page *caching_page; 4060 4061 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4062 panic("invalid subpage value %d", 4063 page_index->subpage); 4064 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4065 &caching_page_default, 4066 sizeof(caching_page_default)); 4067 memcpy(&lun->mode_pages.caching_page[ 4068 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4069 sizeof(caching_page_changeable)); 4070 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4071 &caching_page_default, 4072 sizeof(caching_page_default)); 4073 caching_page = &lun->mode_pages.caching_page[ 4074 CTL_PAGE_SAVED]; 4075 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4076 if (value != NULL && strcmp(value, "off") == 0) 4077 caching_page->flags1 &= ~SCP_WCE; 4078 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4079 if (value != NULL && strcmp(value, "off") == 0) 4080 caching_page->flags1 |= SCP_RCD; 4081 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4082 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4083 sizeof(caching_page_default)); 4084 page_index->page_data = 4085 (uint8_t *)lun->mode_pages.caching_page; 4086 break; 4087 } 4088 case SMS_CONTROL_MODE_PAGE: { 4089 struct scsi_control_page *control_page; 4090 4091 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4092 panic("invalid subpage value %d", 4093 page_index->subpage); 4094 4095 memcpy(&lun->mode_pages.control_page[CTL_PAGE_DEFAULT], 4096 &control_page_default, 4097 sizeof(control_page_default)); 4098 memcpy(&lun->mode_pages.control_page[ 4099 CTL_PAGE_CHANGEABLE], &control_page_changeable, 4100 sizeof(control_page_changeable)); 4101 memcpy(&lun->mode_pages.control_page[CTL_PAGE_SAVED], 4102 &control_page_default, 4103 sizeof(control_page_default)); 4104 control_page = &lun->mode_pages.control_page[ 4105 CTL_PAGE_SAVED]; 4106 value = ctl_get_opt(&lun->be_lun->options, "reordering"); 4107 if (value != NULL && strcmp(value, "unrestricted") == 0) { 4108 control_page->queue_flags &= ~SCP_QUEUE_ALG_MASK; 4109 control_page->queue_flags |= SCP_QUEUE_ALG_UNRESTRICTED; 4110 } 4111 memcpy(&lun->mode_pages.control_page[CTL_PAGE_CURRENT], 4112 &lun->mode_pages.control_page[CTL_PAGE_SAVED], 4113 sizeof(control_page_default)); 4114 page_index->page_data = 4115 (uint8_t *)lun->mode_pages.control_page; 4116 break; 4117 4118 } 4119 case SMS_INFO_EXCEPTIONS_PAGE: { 4120 switch (page_index->subpage) { 4121 case SMS_SUBPAGE_PAGE_0: 4122 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_CURRENT], 4123 &ie_page_default, 4124 sizeof(ie_page_default)); 4125 memcpy(&lun->mode_pages.ie_page[ 4126 CTL_PAGE_CHANGEABLE], &ie_page_changeable, 4127 sizeof(ie_page_changeable)); 4128 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_DEFAULT], 4129 &ie_page_default, 4130 sizeof(ie_page_default)); 4131 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_SAVED], 4132 &ie_page_default, 4133 sizeof(ie_page_default)); 4134 page_index->page_data = 4135 (uint8_t *)lun->mode_pages.ie_page; 4136 break; 4137 case 0x02: { 4138 struct ctl_logical_block_provisioning_page *page; 4139 4140 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_DEFAULT], 4141 &lbp_page_default, 4142 sizeof(lbp_page_default)); 4143 memcpy(&lun->mode_pages.lbp_page[ 4144 CTL_PAGE_CHANGEABLE], &lbp_page_changeable, 4145 sizeof(lbp_page_changeable)); 4146 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4147 &lbp_page_default, 4148 sizeof(lbp_page_default)); 4149 page = &lun->mode_pages.lbp_page[CTL_PAGE_SAVED]; 4150 value = ctl_get_opt(&lun->be_lun->options, 4151 "avail-threshold"); 4152 if (value != NULL && 4153 ctl_expand_number(value, &ival) == 0) { 4154 page->descr[0].flags |= SLBPPD_ENABLED | 4155 SLBPPD_ARMING_DEC; 4156 if (lun->be_lun->blocksize) 4157 ival /= lun->be_lun->blocksize; 4158 else 4159 ival /= 512; 4160 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4161 page->descr[0].count); 4162 } 4163 value = ctl_get_opt(&lun->be_lun->options, 4164 "used-threshold"); 4165 if (value != NULL && 4166 ctl_expand_number(value, &ival) == 0) { 4167 page->descr[1].flags |= SLBPPD_ENABLED | 4168 SLBPPD_ARMING_INC; 4169 if (lun->be_lun->blocksize) 4170 ival /= lun->be_lun->blocksize; 4171 else 4172 ival /= 512; 4173 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4174 page->descr[1].count); 4175 } 4176 value = ctl_get_opt(&lun->be_lun->options, 4177 "pool-avail-threshold"); 4178 if (value != NULL && 4179 ctl_expand_number(value, &ival) == 0) { 4180 page->descr[2].flags |= SLBPPD_ENABLED | 4181 SLBPPD_ARMING_DEC; 4182 if (lun->be_lun->blocksize) 4183 ival /= lun->be_lun->blocksize; 4184 else 4185 ival /= 512; 4186 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4187 page->descr[2].count); 4188 } 4189 value = ctl_get_opt(&lun->be_lun->options, 4190 "pool-used-threshold"); 4191 if (value != NULL && 4192 ctl_expand_number(value, &ival) == 0) { 4193 page->descr[3].flags |= SLBPPD_ENABLED | 4194 SLBPPD_ARMING_INC; 4195 if (lun->be_lun->blocksize) 4196 ival /= lun->be_lun->blocksize; 4197 else 4198 ival /= 512; 4199 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4200 page->descr[3].count); 4201 } 4202 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_CURRENT], 4203 &lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4204 sizeof(lbp_page_default)); 4205 page_index->page_data = 4206 (uint8_t *)lun->mode_pages.lbp_page; 4207 }} 4208 break; 4209 } 4210 case SMS_VENDOR_SPECIFIC_PAGE:{ 4211 switch (page_index->subpage) { 4212 case DBGCNF_SUBPAGE_CODE: { 4213 struct copan_debugconf_subpage *current_page, 4214 *saved_page; 4215 4216 memcpy(&lun->mode_pages.debugconf_subpage[ 4217 CTL_PAGE_CURRENT], 4218 &debugconf_page_default, 4219 sizeof(debugconf_page_default)); 4220 memcpy(&lun->mode_pages.debugconf_subpage[ 4221 CTL_PAGE_CHANGEABLE], 4222 &debugconf_page_changeable, 4223 sizeof(debugconf_page_changeable)); 4224 memcpy(&lun->mode_pages.debugconf_subpage[ 4225 CTL_PAGE_DEFAULT], 4226 &debugconf_page_default, 4227 sizeof(debugconf_page_default)); 4228 memcpy(&lun->mode_pages.debugconf_subpage[ 4229 CTL_PAGE_SAVED], 4230 &debugconf_page_default, 4231 sizeof(debugconf_page_default)); 4232 page_index->page_data = 4233 (uint8_t *)lun->mode_pages.debugconf_subpage; 4234 4235 current_page = (struct copan_debugconf_subpage *) 4236 (page_index->page_data + 4237 (page_index->page_len * 4238 CTL_PAGE_CURRENT)); 4239 saved_page = (struct copan_debugconf_subpage *) 4240 (page_index->page_data + 4241 (page_index->page_len * 4242 CTL_PAGE_SAVED)); 4243 break; 4244 } 4245 default: 4246 panic("invalid subpage value %d", 4247 page_index->subpage); 4248 break; 4249 } 4250 break; 4251 } 4252 default: 4253 panic("invalid page value %d", 4254 page_index->page_code & SMPH_PC_MASK); 4255 break; 4256 } 4257 } 4258 4259 return (CTL_RETVAL_COMPLETE); 4260} 4261 4262static int 4263ctl_init_log_page_index(struct ctl_lun *lun) 4264{ 4265 struct ctl_page_index *page_index; 4266 int i, j, k, prev; 4267 4268 memcpy(&lun->log_pages.index, log_page_index_template, 4269 sizeof(log_page_index_template)); 4270 4271 prev = -1; 4272 for (i = 0, j = 0, k = 0; i < CTL_NUM_LOG_PAGES; i++) { 4273 4274 page_index = &lun->log_pages.index[i]; 4275 /* 4276 * If this is a disk-only mode page, there's no point in 4277 * setting it up. For some pages, we have to have some 4278 * basic information about the disk in order to calculate the 4279 * mode page data. 4280 */ 4281 if ((lun->be_lun->lun_type != T_DIRECT) 4282 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 4283 continue; 4284 4285 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING && 4286 ((lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) == 0 || 4287 lun->backend->lun_attr == NULL)) 4288 continue; 4289 4290 if (page_index->page_code != prev) { 4291 lun->log_pages.pages_page[j] = page_index->page_code; 4292 prev = page_index->page_code; 4293 j++; 4294 } 4295 lun->log_pages.subpages_page[k*2] = page_index->page_code; 4296 lun->log_pages.subpages_page[k*2+1] = page_index->subpage; 4297 k++; 4298 } 4299 lun->log_pages.index[0].page_data = &lun->log_pages.pages_page[0]; 4300 lun->log_pages.index[0].page_len = j; 4301 lun->log_pages.index[1].page_data = &lun->log_pages.subpages_page[0]; 4302 lun->log_pages.index[1].page_len = k * 2; 4303 lun->log_pages.index[2].page_data = &lun->log_pages.lbp_page[0]; 4304 lun->log_pages.index[2].page_len = 12*CTL_NUM_LBP_PARAMS; 4305 4306 return (CTL_RETVAL_COMPLETE); 4307} 4308 4309static int 4310hex2bin(const char *str, uint8_t *buf, int buf_size) 4311{ 4312 int i; 4313 u_char c; 4314 4315 memset(buf, 0, buf_size); 4316 while (isspace(str[0])) 4317 str++; 4318 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) 4319 str += 2; 4320 buf_size *= 2; 4321 for (i = 0; str[i] != 0 && i < buf_size; i++) { 4322 c = str[i]; 4323 if (isdigit(c)) 4324 c -= '0'; 4325 else if (isalpha(c)) 4326 c -= isupper(c) ? 'A' - 10 : 'a' - 10; 4327 else 4328 break; 4329 if (c >= 16) 4330 break; 4331 if ((i & 1) == 0) 4332 buf[i / 2] |= (c << 4); 4333 else 4334 buf[i / 2] |= c; 4335 } 4336 return ((i + 1) / 2); 4337} 4338 4339/* 4340 * LUN allocation. 4341 * 4342 * Requirements: 4343 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4344 * wants us to allocate the LUN and he can block. 4345 * - ctl_softc is always set 4346 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4347 * 4348 * Returns 0 for success, non-zero (errno) for failure. 4349 */ 4350static int 4351ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4352 struct ctl_be_lun *const be_lun, struct ctl_id target_id) 4353{ 4354 struct ctl_lun *nlun, *lun; 4355 struct ctl_port *port; 4356 struct scsi_vpd_id_descriptor *desc; 4357 struct scsi_vpd_id_t10 *t10id; 4358 const char *eui, *naa, *scsiname, *vendor, *value; 4359 int lun_number, i, lun_malloced; 4360 int devidlen, idlen1, idlen2 = 0, len; 4361 4362 if (be_lun == NULL) 4363 return (EINVAL); 4364 4365 /* 4366 * We currently only support Direct Access or Processor LUN types. 4367 */ 4368 switch (be_lun->lun_type) { 4369 case T_DIRECT: 4370 break; 4371 case T_PROCESSOR: 4372 break; 4373 case T_SEQUENTIAL: 4374 case T_CHANGER: 4375 default: 4376 be_lun->lun_config_status(be_lun->be_lun, 4377 CTL_LUN_CONFIG_FAILURE); 4378 break; 4379 } 4380 if (ctl_lun == NULL) { 4381 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4382 lun_malloced = 1; 4383 } else { 4384 lun_malloced = 0; 4385 lun = ctl_lun; 4386 } 4387 4388 memset(lun, 0, sizeof(*lun)); 4389 if (lun_malloced) 4390 lun->flags = CTL_LUN_MALLOCED; 4391 4392 /* Generate LUN ID. */ 4393 devidlen = max(CTL_DEVID_MIN_LEN, 4394 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4395 idlen1 = sizeof(*t10id) + devidlen; 4396 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4397 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4398 if (scsiname != NULL) { 4399 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4400 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4401 } 4402 eui = ctl_get_opt(&be_lun->options, "eui"); 4403 if (eui != NULL) { 4404 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4405 } 4406 naa = ctl_get_opt(&be_lun->options, "naa"); 4407 if (naa != NULL) { 4408 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4409 } 4410 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4411 M_CTL, M_WAITOK | M_ZERO); 4412 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4413 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4414 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4415 desc->length = idlen1; 4416 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4417 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4418 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4419 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4420 } else { 4421 strncpy(t10id->vendor, vendor, 4422 min(sizeof(t10id->vendor), strlen(vendor))); 4423 } 4424 strncpy((char *)t10id->vendor_spec_id, 4425 (char *)be_lun->device_id, devidlen); 4426 if (scsiname != NULL) { 4427 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4428 desc->length); 4429 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4430 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4431 SVPD_ID_TYPE_SCSI_NAME; 4432 desc->length = idlen2; 4433 strlcpy(desc->identifier, scsiname, idlen2); 4434 } 4435 if (eui != NULL) { 4436 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4437 desc->length); 4438 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4439 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4440 SVPD_ID_TYPE_EUI64; 4441 desc->length = hex2bin(eui, desc->identifier, 16); 4442 desc->length = desc->length > 12 ? 16 : 4443 (desc->length > 8 ? 12 : 8); 4444 len -= 16 - desc->length; 4445 } 4446 if (naa != NULL) { 4447 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4448 desc->length); 4449 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4450 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4451 SVPD_ID_TYPE_NAA; 4452 desc->length = hex2bin(naa, desc->identifier, 16); 4453 desc->length = desc->length > 8 ? 16 : 8; 4454 len -= 16 - desc->length; 4455 } 4456 lun->lun_devid->len = len; 4457 4458 mtx_lock(&ctl_softc->ctl_lock); 4459 /* 4460 * See if the caller requested a particular LUN number. If so, see 4461 * if it is available. Otherwise, allocate the first available LUN. 4462 */ 4463 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4464 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4465 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4466 mtx_unlock(&ctl_softc->ctl_lock); 4467 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4468 printf("ctl: requested LUN ID %d is higher " 4469 "than CTL_MAX_LUNS - 1 (%d)\n", 4470 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4471 } else { 4472 /* 4473 * XXX KDM return an error, or just assign 4474 * another LUN ID in this case?? 4475 */ 4476 printf("ctl: requested LUN ID %d is already " 4477 "in use\n", be_lun->req_lun_id); 4478 } 4479 if (lun->flags & CTL_LUN_MALLOCED) 4480 free(lun, M_CTL); 4481 be_lun->lun_config_status(be_lun->be_lun, 4482 CTL_LUN_CONFIG_FAILURE); 4483 return (ENOSPC); 4484 } 4485 lun_number = be_lun->req_lun_id; 4486 } else { 4487 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, CTL_MAX_LUNS); 4488 if (lun_number == -1) { 4489 mtx_unlock(&ctl_softc->ctl_lock); 4490 printf("ctl: can't allocate LUN on target %ju, out of " 4491 "LUNs\n", (uintmax_t)target_id.id); 4492 if (lun->flags & CTL_LUN_MALLOCED) 4493 free(lun, M_CTL); 4494 be_lun->lun_config_status(be_lun->be_lun, 4495 CTL_LUN_CONFIG_FAILURE); 4496 return (ENOSPC); 4497 } 4498 } 4499 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4500 4501 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4502 lun->target = target_id; 4503 lun->lun = lun_number; 4504 lun->be_lun = be_lun; 4505 /* 4506 * The processor LUN is always enabled. Disk LUNs come on line 4507 * disabled, and must be enabled by the backend. 4508 */ 4509 lun->flags |= CTL_LUN_DISABLED; 4510 lun->backend = be_lun->be; 4511 be_lun->ctl_lun = lun; 4512 be_lun->lun_id = lun_number; 4513 atomic_add_int(&be_lun->be->num_luns, 1); 4514 if (be_lun->flags & CTL_LUN_FLAG_OFFLINE) 4515 lun->flags |= CTL_LUN_OFFLINE; 4516 4517 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4518 lun->flags |= CTL_LUN_STOPPED; 4519 4520 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4521 lun->flags |= CTL_LUN_INOPERABLE; 4522 4523 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4524 lun->flags |= CTL_LUN_PRIMARY_SC; 4525 4526 value = ctl_get_opt(&be_lun->options, "readonly"); 4527 if (value != NULL && strcmp(value, "on") == 0) 4528 lun->flags |= CTL_LUN_READONLY; 4529 4530 lun->ctl_softc = ctl_softc; 4531 TAILQ_INIT(&lun->ooa_queue); 4532 TAILQ_INIT(&lun->blocked_queue); 4533 STAILQ_INIT(&lun->error_list); 4534 ctl_tpc_lun_init(lun); 4535 4536 /* 4537 * Initialize the mode and log page index. 4538 */ 4539 ctl_init_page_index(lun); 4540 ctl_init_log_page_index(lun); 4541 4542 /* 4543 * Set the poweron UA for all initiators on this LUN only. 4544 */ 4545 for (i = 0; i < CTL_MAX_INITIATORS; i++) 4546 lun->pending_ua[i] = CTL_UA_POWERON; 4547 4548 /* 4549 * Now, before we insert this lun on the lun list, set the lun 4550 * inventory changed UA for all other luns. 4551 */ 4552 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4553 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4554 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4555 } 4556 } 4557 4558 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4559 4560 ctl_softc->ctl_luns[lun_number] = lun; 4561 4562 ctl_softc->num_luns++; 4563 4564 /* Setup statistics gathering */ 4565 lun->stats.device_type = be_lun->lun_type; 4566 lun->stats.lun_number = lun_number; 4567 if (lun->stats.device_type == T_DIRECT) 4568 lun->stats.blocksize = be_lun->blocksize; 4569 else 4570 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4571 for (i = 0;i < CTL_MAX_PORTS;i++) 4572 lun->stats.ports[i].targ_port = i; 4573 4574 mtx_unlock(&ctl_softc->ctl_lock); 4575 4576 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4577 4578 /* 4579 * Run through each registered FETD and bring it online if it isn't 4580 * already. Enable the target ID if it hasn't been enabled, and 4581 * enable this particular LUN. 4582 */ 4583 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4584 int retval; 4585 4586 retval = port->lun_enable(port->targ_lun_arg, target_id,lun_number); 4587 if (retval != 0) { 4588 printf("ctl_alloc_lun: FETD %s port %d returned error " 4589 "%d for lun_enable on target %ju lun %d\n", 4590 port->port_name, port->targ_port, retval, 4591 (uintmax_t)target_id.id, lun_number); 4592 } else 4593 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4594 } 4595 return (0); 4596} 4597 4598/* 4599 * Delete a LUN. 4600 * Assumptions: 4601 * - LUN has already been marked invalid and any pending I/O has been taken 4602 * care of. 4603 */ 4604static int 4605ctl_free_lun(struct ctl_lun *lun) 4606{ 4607 struct ctl_softc *softc; 4608#if 0 4609 struct ctl_port *port; 4610#endif 4611 struct ctl_lun *nlun; 4612 int i; 4613 4614 softc = lun->ctl_softc; 4615 4616 mtx_assert(&softc->ctl_lock, MA_OWNED); 4617 4618 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4619 4620 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4621 4622 softc->ctl_luns[lun->lun] = NULL; 4623 4624 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4625 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4626 4627 softc->num_luns--; 4628 4629 /* 4630 * XXX KDM this scheme only works for a single target/multiple LUN 4631 * setup. It needs to be revamped for a multiple target scheme. 4632 * 4633 * XXX KDM this results in port->lun_disable() getting called twice, 4634 * once when ctl_disable_lun() is called, and a second time here. 4635 * We really need to re-think the LUN disable semantics. There 4636 * should probably be several steps/levels to LUN removal: 4637 * - disable 4638 * - invalidate 4639 * - free 4640 * 4641 * Right now we only have a disable method when communicating to 4642 * the front end ports, at least for individual LUNs. 4643 */ 4644#if 0 4645 STAILQ_FOREACH(port, &softc->port_list, links) { 4646 int retval; 4647 4648 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4649 lun->lun); 4650 if (retval != 0) { 4651 printf("ctl_free_lun: FETD %s port %d returned error " 4652 "%d for lun_disable on target %ju lun %jd\n", 4653 port->port_name, port->targ_port, retval, 4654 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4655 } 4656 4657 if (STAILQ_FIRST(&softc->lun_list) == NULL) { 4658 port->status &= ~CTL_PORT_STATUS_LUN_ONLINE; 4659 4660 retval = port->targ_disable(port->targ_lun_arg,lun->target); 4661 if (retval != 0) { 4662 printf("ctl_free_lun: FETD %s port %d " 4663 "returned error %d for targ_disable on " 4664 "target %ju\n", port->port_name, 4665 port->targ_port, retval, 4666 (uintmax_t)lun->target.id); 4667 } else 4668 port->status &= ~CTL_PORT_STATUS_TARG_ONLINE; 4669 4670 if ((port->status & CTL_PORT_STATUS_TARG_ONLINE) != 0) 4671 continue; 4672 4673#if 0 4674 port->port_offline(port->onoff_arg); 4675 port->status &= ~CTL_PORT_STATUS_ONLINE; 4676#endif 4677 } 4678 } 4679#endif 4680 4681 /* 4682 * Tell the backend to free resources, if this LUN has a backend. 4683 */ 4684 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4685 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4686 4687 ctl_tpc_lun_shutdown(lun); 4688 mtx_destroy(&lun->lun_lock); 4689 free(lun->lun_devid, M_CTL); 4690 free(lun->write_buffer, M_CTL); 4691 if (lun->flags & CTL_LUN_MALLOCED) 4692 free(lun, M_CTL); 4693 4694 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4695 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4696 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4697 } 4698 } 4699 4700 return (0); 4701} 4702 4703static void 4704ctl_create_lun(struct ctl_be_lun *be_lun) 4705{ 4706 struct ctl_softc *ctl_softc; 4707 4708 ctl_softc = control_softc; 4709 4710 /* 4711 * ctl_alloc_lun() should handle all potential failure cases. 4712 */ 4713 ctl_alloc_lun(ctl_softc, NULL, be_lun, ctl_softc->target); 4714} 4715 4716int 4717ctl_add_lun(struct ctl_be_lun *be_lun) 4718{ 4719 struct ctl_softc *ctl_softc = control_softc; 4720 4721 mtx_lock(&ctl_softc->ctl_lock); 4722 STAILQ_INSERT_TAIL(&ctl_softc->pending_lun_queue, be_lun, links); 4723 mtx_unlock(&ctl_softc->ctl_lock); 4724 wakeup(&ctl_softc->pending_lun_queue); 4725 4726 return (0); 4727} 4728 4729int 4730ctl_enable_lun(struct ctl_be_lun *be_lun) 4731{ 4732 struct ctl_softc *ctl_softc; 4733 struct ctl_port *port, *nport; 4734 struct ctl_lun *lun; 4735 int retval; 4736 4737 ctl_softc = control_softc; 4738 4739 lun = (struct ctl_lun *)be_lun->ctl_lun; 4740 4741 mtx_lock(&ctl_softc->ctl_lock); 4742 mtx_lock(&lun->lun_lock); 4743 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4744 /* 4745 * eh? Why did we get called if the LUN is already 4746 * enabled? 4747 */ 4748 mtx_unlock(&lun->lun_lock); 4749 mtx_unlock(&ctl_softc->ctl_lock); 4750 return (0); 4751 } 4752 lun->flags &= ~CTL_LUN_DISABLED; 4753 mtx_unlock(&lun->lun_lock); 4754 4755 for (port = STAILQ_FIRST(&ctl_softc->port_list); port != NULL; port = nport) { 4756 nport = STAILQ_NEXT(port, links); 4757 4758 /* 4759 * Drop the lock while we call the FETD's enable routine. 4760 * This can lead to a callback into CTL (at least in the 4761 * case of the internal initiator frontend. 4762 */ 4763 mtx_unlock(&ctl_softc->ctl_lock); 4764 retval = port->lun_enable(port->targ_lun_arg, lun->target,lun->lun); 4765 mtx_lock(&ctl_softc->ctl_lock); 4766 if (retval != 0) { 4767 printf("%s: FETD %s port %d returned error " 4768 "%d for lun_enable on target %ju lun %jd\n", 4769 __func__, port->port_name, port->targ_port, retval, 4770 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4771 } 4772#if 0 4773 else { 4774 /* NOTE: TODO: why does lun enable affect port status? */ 4775 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4776 } 4777#endif 4778 } 4779 4780 mtx_unlock(&ctl_softc->ctl_lock); 4781 4782 return (0); 4783} 4784 4785int 4786ctl_disable_lun(struct ctl_be_lun *be_lun) 4787{ 4788 struct ctl_softc *ctl_softc; 4789 struct ctl_port *port; 4790 struct ctl_lun *lun; 4791 int retval; 4792 4793 ctl_softc = control_softc; 4794 4795 lun = (struct ctl_lun *)be_lun->ctl_lun; 4796 4797 mtx_lock(&ctl_softc->ctl_lock); 4798 mtx_lock(&lun->lun_lock); 4799 if (lun->flags & CTL_LUN_DISABLED) { 4800 mtx_unlock(&lun->lun_lock); 4801 mtx_unlock(&ctl_softc->ctl_lock); 4802 return (0); 4803 } 4804 lun->flags |= CTL_LUN_DISABLED; 4805 mtx_unlock(&lun->lun_lock); 4806 4807 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4808 mtx_unlock(&ctl_softc->ctl_lock); 4809 /* 4810 * Drop the lock before we call the frontend's disable 4811 * routine, to avoid lock order reversals. 4812 * 4813 * XXX KDM what happens if the frontend list changes while 4814 * we're traversing it? It's unlikely, but should be handled. 4815 */ 4816 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4817 lun->lun); 4818 mtx_lock(&ctl_softc->ctl_lock); 4819 if (retval != 0) { 4820 printf("ctl_alloc_lun: FETD %s port %d returned error " 4821 "%d for lun_disable on target %ju lun %jd\n", 4822 port->port_name, port->targ_port, retval, 4823 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4824 } 4825 } 4826 4827 mtx_unlock(&ctl_softc->ctl_lock); 4828 4829 return (0); 4830} 4831 4832int 4833ctl_start_lun(struct ctl_be_lun *be_lun) 4834{ 4835 struct ctl_softc *ctl_softc; 4836 struct ctl_lun *lun; 4837 4838 ctl_softc = control_softc; 4839 4840 lun = (struct ctl_lun *)be_lun->ctl_lun; 4841 4842 mtx_lock(&lun->lun_lock); 4843 lun->flags &= ~CTL_LUN_STOPPED; 4844 mtx_unlock(&lun->lun_lock); 4845 4846 return (0); 4847} 4848 4849int 4850ctl_stop_lun(struct ctl_be_lun *be_lun) 4851{ 4852 struct ctl_softc *ctl_softc; 4853 struct ctl_lun *lun; 4854 4855 ctl_softc = control_softc; 4856 4857 lun = (struct ctl_lun *)be_lun->ctl_lun; 4858 4859 mtx_lock(&lun->lun_lock); 4860 lun->flags |= CTL_LUN_STOPPED; 4861 mtx_unlock(&lun->lun_lock); 4862 4863 return (0); 4864} 4865 4866int 4867ctl_lun_offline(struct ctl_be_lun *be_lun) 4868{ 4869 struct ctl_softc *ctl_softc; 4870 struct ctl_lun *lun; 4871 4872 ctl_softc = control_softc; 4873 4874 lun = (struct ctl_lun *)be_lun->ctl_lun; 4875 4876 mtx_lock(&lun->lun_lock); 4877 lun->flags |= CTL_LUN_OFFLINE; 4878 mtx_unlock(&lun->lun_lock); 4879 4880 return (0); 4881} 4882 4883int 4884ctl_lun_online(struct ctl_be_lun *be_lun) 4885{ 4886 struct ctl_softc *ctl_softc; 4887 struct ctl_lun *lun; 4888 4889 ctl_softc = control_softc; 4890 4891 lun = (struct ctl_lun *)be_lun->ctl_lun; 4892 4893 mtx_lock(&lun->lun_lock); 4894 lun->flags &= ~CTL_LUN_OFFLINE; 4895 mtx_unlock(&lun->lun_lock); 4896 4897 return (0); 4898} 4899 4900int 4901ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4902{ 4903 struct ctl_softc *ctl_softc; 4904 struct ctl_lun *lun; 4905 4906 ctl_softc = control_softc; 4907 4908 lun = (struct ctl_lun *)be_lun->ctl_lun; 4909 4910 mtx_lock(&lun->lun_lock); 4911 4912 /* 4913 * The LUN needs to be disabled before it can be marked invalid. 4914 */ 4915 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4916 mtx_unlock(&lun->lun_lock); 4917 return (-1); 4918 } 4919 /* 4920 * Mark the LUN invalid. 4921 */ 4922 lun->flags |= CTL_LUN_INVALID; 4923 4924 /* 4925 * If there is nothing in the OOA queue, go ahead and free the LUN. 4926 * If we have something in the OOA queue, we'll free it when the 4927 * last I/O completes. 4928 */ 4929 if (TAILQ_EMPTY(&lun->ooa_queue)) { 4930 mtx_unlock(&lun->lun_lock); 4931 mtx_lock(&ctl_softc->ctl_lock); 4932 ctl_free_lun(lun); 4933 mtx_unlock(&ctl_softc->ctl_lock); 4934 } else 4935 mtx_unlock(&lun->lun_lock); 4936 4937 return (0); 4938} 4939 4940int 4941ctl_lun_inoperable(struct ctl_be_lun *be_lun) 4942{ 4943 struct ctl_softc *ctl_softc; 4944 struct ctl_lun *lun; 4945 4946 ctl_softc = control_softc; 4947 lun = (struct ctl_lun *)be_lun->ctl_lun; 4948 4949 mtx_lock(&lun->lun_lock); 4950 lun->flags |= CTL_LUN_INOPERABLE; 4951 mtx_unlock(&lun->lun_lock); 4952 4953 return (0); 4954} 4955 4956int 4957ctl_lun_operable(struct ctl_be_lun *be_lun) 4958{ 4959 struct ctl_softc *ctl_softc; 4960 struct ctl_lun *lun; 4961 4962 ctl_softc = control_softc; 4963 lun = (struct ctl_lun *)be_lun->ctl_lun; 4964 4965 mtx_lock(&lun->lun_lock); 4966 lun->flags &= ~CTL_LUN_INOPERABLE; 4967 mtx_unlock(&lun->lun_lock); 4968 4969 return (0); 4970} 4971 4972void 4973ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 4974{ 4975 struct ctl_lun *lun; 4976 struct ctl_softc *softc; 4977 int i; 4978 4979 softc = control_softc; 4980 4981 lun = (struct ctl_lun *)be_lun->ctl_lun; 4982 4983 mtx_lock(&lun->lun_lock); 4984 4985 for (i = 0; i < CTL_MAX_INITIATORS; i++) 4986 lun->pending_ua[i] |= CTL_UA_CAPACITY_CHANGED; 4987 4988 mtx_unlock(&lun->lun_lock); 4989} 4990 4991/* 4992 * Backend "memory move is complete" callback for requests that never 4993 * make it down to say RAIDCore's configuration code. 4994 */ 4995int 4996ctl_config_move_done(union ctl_io *io) 4997{ 4998 int retval; 4999 5000 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 5001 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI, 5002 ("Config I/O type isn't CTL_IO_SCSI (%d)!", io->io_hdr.io_type)); 5003 5004 if ((io->io_hdr.port_status != 0) && 5005 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5006 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5007 /* 5008 * For hardware error sense keys, the sense key 5009 * specific value is defined to be a retry count, 5010 * but we use it to pass back an internal FETD 5011 * error code. XXX KDM Hopefully the FETD is only 5012 * using 16 bits for an error code, since that's 5013 * all the space we have in the sks field. 5014 */ 5015 ctl_set_internal_failure(&io->scsiio, 5016 /*sks_valid*/ 1, 5017 /*retry_count*/ 5018 io->io_hdr.port_status); 5019 } 5020 5021 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) || 5022 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5023 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) || 5024 ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5025 /* 5026 * XXX KDM just assuming a single pointer here, and not a 5027 * S/G list. If we start using S/G lists for config data, 5028 * we'll need to know how to clean them up here as well. 5029 */ 5030 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5031 free(io->scsiio.kern_data_ptr, M_CTL); 5032 ctl_done(io); 5033 retval = CTL_RETVAL_COMPLETE; 5034 } else { 5035 /* 5036 * XXX KDM now we need to continue data movement. Some 5037 * options: 5038 * - call ctl_scsiio() again? We don't do this for data 5039 * writes, because for those at least we know ahead of 5040 * time where the write will go and how long it is. For 5041 * config writes, though, that information is largely 5042 * contained within the write itself, thus we need to 5043 * parse out the data again. 5044 * 5045 * - Call some other function once the data is in? 5046 */ 5047 if (ctl_debug & CTL_DEBUG_CDB_DATA) 5048 ctl_data_print(io); 5049 5050 /* 5051 * XXX KDM call ctl_scsiio() again for now, and check flag 5052 * bits to see whether we're allocated or not. 5053 */ 5054 retval = ctl_scsiio(&io->scsiio); 5055 } 5056 return (retval); 5057} 5058 5059/* 5060 * This gets called by a backend driver when it is done with a 5061 * data_submit method. 5062 */ 5063void 5064ctl_data_submit_done(union ctl_io *io) 5065{ 5066 /* 5067 * If the IO_CONT flag is set, we need to call the supplied 5068 * function to continue processing the I/O, instead of completing 5069 * the I/O just yet. 5070 * 5071 * If there is an error, though, we don't want to keep processing. 5072 * Instead, just send status back to the initiator. 5073 */ 5074 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5075 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5076 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5077 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5078 io->scsiio.io_cont(io); 5079 return; 5080 } 5081 ctl_done(io); 5082} 5083 5084/* 5085 * This gets called by a backend driver when it is done with a 5086 * configuration write. 5087 */ 5088void 5089ctl_config_write_done(union ctl_io *io) 5090{ 5091 uint8_t *buf; 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 /* 5109 * Since a configuration write can be done for commands that actually 5110 * have data allocated, like write buffer, and commands that have 5111 * no data, like start/stop unit, we need to check here. 5112 */ 5113 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5114 buf = io->scsiio.kern_data_ptr; 5115 else 5116 buf = NULL; 5117 ctl_done(io); 5118 if (buf) 5119 free(buf, M_CTL); 5120} 5121 5122/* 5123 * SCSI release command. 5124 */ 5125int 5126ctl_scsi_release(struct ctl_scsiio *ctsio) 5127{ 5128 int length, longid, thirdparty_id, resv_id; 5129 struct ctl_softc *ctl_softc; 5130 struct ctl_lun *lun; 5131 uint32_t residx; 5132 5133 length = 0; 5134 resv_id = 0; 5135 5136 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5137 5138 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5139 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5140 ctl_softc = control_softc; 5141 5142 switch (ctsio->cdb[0]) { 5143 case RELEASE_10: { 5144 struct scsi_release_10 *cdb; 5145 5146 cdb = (struct scsi_release_10 *)ctsio->cdb; 5147 5148 if (cdb->byte2 & SR10_LONGID) 5149 longid = 1; 5150 else 5151 thirdparty_id = cdb->thirdparty_id; 5152 5153 resv_id = cdb->resv_id; 5154 length = scsi_2btoul(cdb->length); 5155 break; 5156 } 5157 } 5158 5159 5160 /* 5161 * XXX KDM right now, we only support LUN reservation. We don't 5162 * support 3rd party reservations, or extent reservations, which 5163 * might actually need the parameter list. If we've gotten this 5164 * far, we've got a LUN reservation. Anything else got kicked out 5165 * above. So, according to SPC, ignore the length. 5166 */ 5167 length = 0; 5168 5169 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5170 && (length > 0)) { 5171 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5172 ctsio->kern_data_len = length; 5173 ctsio->kern_total_len = length; 5174 ctsio->kern_data_resid = 0; 5175 ctsio->kern_rel_offset = 0; 5176 ctsio->kern_sg_entries = 0; 5177 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5178 ctsio->be_move_done = ctl_config_move_done; 5179 ctl_datamove((union ctl_io *)ctsio); 5180 5181 return (CTL_RETVAL_COMPLETE); 5182 } 5183 5184 if (length > 0) 5185 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5186 5187 mtx_lock(&lun->lun_lock); 5188 5189 /* 5190 * According to SPC, it is not an error for an intiator to attempt 5191 * to release a reservation on a LUN that isn't reserved, or that 5192 * is reserved by another initiator. The reservation can only be 5193 * released, though, by the initiator who made it or by one of 5194 * several reset type events. 5195 */ 5196 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5197 lun->flags &= ~CTL_LUN_RESERVED; 5198 5199 mtx_unlock(&lun->lun_lock); 5200 5201 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5202 free(ctsio->kern_data_ptr, M_CTL); 5203 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5204 } 5205 5206 ctl_set_success(ctsio); 5207 ctl_done((union ctl_io *)ctsio); 5208 return (CTL_RETVAL_COMPLETE); 5209} 5210 5211int 5212ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5213{ 5214 int extent, thirdparty, longid; 5215 int resv_id, length; 5216 uint64_t thirdparty_id; 5217 struct ctl_softc *ctl_softc; 5218 struct ctl_lun *lun; 5219 uint32_t residx; 5220 5221 extent = 0; 5222 thirdparty = 0; 5223 longid = 0; 5224 resv_id = 0; 5225 length = 0; 5226 thirdparty_id = 0; 5227 5228 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5229 5230 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5231 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5232 ctl_softc = control_softc; 5233 5234 switch (ctsio->cdb[0]) { 5235 case RESERVE_10: { 5236 struct scsi_reserve_10 *cdb; 5237 5238 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 5239 5240 if (cdb->byte2 & SR10_LONGID) 5241 longid = 1; 5242 else 5243 thirdparty_id = cdb->thirdparty_id; 5244 5245 resv_id = cdb->resv_id; 5246 length = scsi_2btoul(cdb->length); 5247 break; 5248 } 5249 } 5250 5251 /* 5252 * XXX KDM right now, we only support LUN reservation. We don't 5253 * support 3rd party reservations, or extent reservations, which 5254 * might actually need the parameter list. If we've gotten this 5255 * far, we've got a LUN reservation. Anything else got kicked out 5256 * above. So, according to SPC, ignore the length. 5257 */ 5258 length = 0; 5259 5260 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5261 && (length > 0)) { 5262 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5263 ctsio->kern_data_len = length; 5264 ctsio->kern_total_len = length; 5265 ctsio->kern_data_resid = 0; 5266 ctsio->kern_rel_offset = 0; 5267 ctsio->kern_sg_entries = 0; 5268 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5269 ctsio->be_move_done = ctl_config_move_done; 5270 ctl_datamove((union ctl_io *)ctsio); 5271 5272 return (CTL_RETVAL_COMPLETE); 5273 } 5274 5275 if (length > 0) 5276 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5277 5278 mtx_lock(&lun->lun_lock); 5279 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5280 ctl_set_reservation_conflict(ctsio); 5281 goto bailout; 5282 } 5283 5284 lun->flags |= CTL_LUN_RESERVED; 5285 lun->res_idx = residx; 5286 5287 ctl_set_success(ctsio); 5288 5289bailout: 5290 mtx_unlock(&lun->lun_lock); 5291 5292 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5293 free(ctsio->kern_data_ptr, M_CTL); 5294 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5295 } 5296 5297 ctl_done((union ctl_io *)ctsio); 5298 return (CTL_RETVAL_COMPLETE); 5299} 5300 5301int 5302ctl_start_stop(struct ctl_scsiio *ctsio) 5303{ 5304 struct scsi_start_stop_unit *cdb; 5305 struct ctl_lun *lun; 5306 struct ctl_softc *ctl_softc; 5307 int retval; 5308 5309 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5310 5311 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5312 ctl_softc = control_softc; 5313 retval = 0; 5314 5315 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5316 5317 /* 5318 * XXX KDM 5319 * We don't support the immediate bit on a stop unit. In order to 5320 * do that, we would need to code up a way to know that a stop is 5321 * pending, and hold off any new commands until it completes, one 5322 * way or another. Then we could accept or reject those commands 5323 * depending on its status. We would almost need to do the reverse 5324 * of what we do below for an immediate start -- return the copy of 5325 * the ctl_io to the FETD with status to send to the host (and to 5326 * free the copy!) and then free the original I/O once the stop 5327 * actually completes. That way, the OOA queue mechanism can work 5328 * to block commands that shouldn't proceed. Another alternative 5329 * would be to put the copy in the queue in place of the original, 5330 * and return the original back to the caller. That could be 5331 * slightly safer.. 5332 */ 5333 if ((cdb->byte2 & SSS_IMMED) 5334 && ((cdb->how & SSS_START) == 0)) { 5335 ctl_set_invalid_field(ctsio, 5336 /*sks_valid*/ 1, 5337 /*command*/ 1, 5338 /*field*/ 1, 5339 /*bit_valid*/ 1, 5340 /*bit*/ 0); 5341 ctl_done((union ctl_io *)ctsio); 5342 return (CTL_RETVAL_COMPLETE); 5343 } 5344 5345 if ((lun->flags & CTL_LUN_PR_RESERVED) 5346 && ((cdb->how & SSS_START)==0)) { 5347 uint32_t residx; 5348 5349 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5350 if (lun->pr_keys[residx] == 0 5351 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5352 5353 ctl_set_reservation_conflict(ctsio); 5354 ctl_done((union ctl_io *)ctsio); 5355 return (CTL_RETVAL_COMPLETE); 5356 } 5357 } 5358 5359 /* 5360 * If there is no backend on this device, we can't start or stop 5361 * it. In theory we shouldn't get any start/stop commands in the 5362 * first place at this level if the LUN doesn't have a backend. 5363 * That should get stopped by the command decode code. 5364 */ 5365 if (lun->backend == NULL) { 5366 ctl_set_invalid_opcode(ctsio); 5367 ctl_done((union ctl_io *)ctsio); 5368 return (CTL_RETVAL_COMPLETE); 5369 } 5370 5371 /* 5372 * XXX KDM Copan-specific offline behavior. 5373 * Figure out a reasonable way to port this? 5374 */ 5375#ifdef NEEDTOPORT 5376 mtx_lock(&lun->lun_lock); 5377 5378 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5379 && (lun->flags & CTL_LUN_OFFLINE)) { 5380 /* 5381 * If the LUN is offline, and the on/offline bit isn't set, 5382 * reject the start or stop. Otherwise, let it through. 5383 */ 5384 mtx_unlock(&lun->lun_lock); 5385 ctl_set_lun_not_ready(ctsio); 5386 ctl_done((union ctl_io *)ctsio); 5387 } else { 5388 mtx_unlock(&lun->lun_lock); 5389#endif /* NEEDTOPORT */ 5390 /* 5391 * This could be a start or a stop when we're online, 5392 * or a stop/offline or start/online. A start or stop when 5393 * we're offline is covered in the case above. 5394 */ 5395 /* 5396 * In the non-immediate case, we send the request to 5397 * the backend and return status to the user when 5398 * it is done. 5399 * 5400 * In the immediate case, we allocate a new ctl_io 5401 * to hold a copy of the request, and send that to 5402 * the backend. We then set good status on the 5403 * user's request and return it immediately. 5404 */ 5405 if (cdb->byte2 & SSS_IMMED) { 5406 union ctl_io *new_io; 5407 5408 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5409 ctl_copy_io((union ctl_io *)ctsio, new_io); 5410 retval = lun->backend->config_write(new_io); 5411 ctl_set_success(ctsio); 5412 ctl_done((union ctl_io *)ctsio); 5413 } else { 5414 retval = lun->backend->config_write( 5415 (union ctl_io *)ctsio); 5416 } 5417#ifdef NEEDTOPORT 5418 } 5419#endif 5420 return (retval); 5421} 5422 5423/* 5424 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5425 * we don't really do anything with the LBA and length fields if the user 5426 * passes them in. Instead we'll just flush out the cache for the entire 5427 * LUN. 5428 */ 5429int 5430ctl_sync_cache(struct ctl_scsiio *ctsio) 5431{ 5432 struct ctl_lun *lun; 5433 struct ctl_softc *ctl_softc; 5434 uint64_t starting_lba; 5435 uint32_t block_count; 5436 int retval; 5437 5438 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5439 5440 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5441 ctl_softc = control_softc; 5442 retval = 0; 5443 5444 switch (ctsio->cdb[0]) { 5445 case SYNCHRONIZE_CACHE: { 5446 struct scsi_sync_cache *cdb; 5447 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5448 5449 starting_lba = scsi_4btoul(cdb->begin_lba); 5450 block_count = scsi_2btoul(cdb->lb_count); 5451 break; 5452 } 5453 case SYNCHRONIZE_CACHE_16: { 5454 struct scsi_sync_cache_16 *cdb; 5455 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5456 5457 starting_lba = scsi_8btou64(cdb->begin_lba); 5458 block_count = scsi_4btoul(cdb->lb_count); 5459 break; 5460 } 5461 default: 5462 ctl_set_invalid_opcode(ctsio); 5463 ctl_done((union ctl_io *)ctsio); 5464 goto bailout; 5465 break; /* NOTREACHED */ 5466 } 5467 5468 /* 5469 * We check the LBA and length, but don't do anything with them. 5470 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5471 * get flushed. This check will just help satisfy anyone who wants 5472 * to see an error for an out of range LBA. 5473 */ 5474 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5475 ctl_set_lba_out_of_range(ctsio); 5476 ctl_done((union ctl_io *)ctsio); 5477 goto bailout; 5478 } 5479 5480 /* 5481 * If this LUN has no backend, we can't flush the cache anyway. 5482 */ 5483 if (lun->backend == NULL) { 5484 ctl_set_invalid_opcode(ctsio); 5485 ctl_done((union ctl_io *)ctsio); 5486 goto bailout; 5487 } 5488 5489 /* 5490 * Check to see whether we're configured to send the SYNCHRONIZE 5491 * CACHE command directly to the back end. 5492 */ 5493 mtx_lock(&lun->lun_lock); 5494 if ((ctl_softc->flags & CTL_FLAG_REAL_SYNC) 5495 && (++(lun->sync_count) >= lun->sync_interval)) { 5496 lun->sync_count = 0; 5497 mtx_unlock(&lun->lun_lock); 5498 retval = lun->backend->config_write((union ctl_io *)ctsio); 5499 } else { 5500 mtx_unlock(&lun->lun_lock); 5501 ctl_set_success(ctsio); 5502 ctl_done((union ctl_io *)ctsio); 5503 } 5504 5505bailout: 5506 5507 return (retval); 5508} 5509 5510int 5511ctl_format(struct ctl_scsiio *ctsio) 5512{ 5513 struct scsi_format *cdb; 5514 struct ctl_lun *lun; 5515 struct ctl_softc *ctl_softc; 5516 int length, defect_list_len; 5517 5518 CTL_DEBUG_PRINT(("ctl_format\n")); 5519 5520 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5521 ctl_softc = control_softc; 5522 5523 cdb = (struct scsi_format *)ctsio->cdb; 5524 5525 length = 0; 5526 if (cdb->byte2 & SF_FMTDATA) { 5527 if (cdb->byte2 & SF_LONGLIST) 5528 length = sizeof(struct scsi_format_header_long); 5529 else 5530 length = sizeof(struct scsi_format_header_short); 5531 } 5532 5533 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5534 && (length > 0)) { 5535 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5536 ctsio->kern_data_len = length; 5537 ctsio->kern_total_len = length; 5538 ctsio->kern_data_resid = 0; 5539 ctsio->kern_rel_offset = 0; 5540 ctsio->kern_sg_entries = 0; 5541 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5542 ctsio->be_move_done = ctl_config_move_done; 5543 ctl_datamove((union ctl_io *)ctsio); 5544 5545 return (CTL_RETVAL_COMPLETE); 5546 } 5547 5548 defect_list_len = 0; 5549 5550 if (cdb->byte2 & SF_FMTDATA) { 5551 if (cdb->byte2 & SF_LONGLIST) { 5552 struct scsi_format_header_long *header; 5553 5554 header = (struct scsi_format_header_long *) 5555 ctsio->kern_data_ptr; 5556 5557 defect_list_len = scsi_4btoul(header->defect_list_len); 5558 if (defect_list_len != 0) { 5559 ctl_set_invalid_field(ctsio, 5560 /*sks_valid*/ 1, 5561 /*command*/ 0, 5562 /*field*/ 2, 5563 /*bit_valid*/ 0, 5564 /*bit*/ 0); 5565 goto bailout; 5566 } 5567 } else { 5568 struct scsi_format_header_short *header; 5569 5570 header = (struct scsi_format_header_short *) 5571 ctsio->kern_data_ptr; 5572 5573 defect_list_len = scsi_2btoul(header->defect_list_len); 5574 if (defect_list_len != 0) { 5575 ctl_set_invalid_field(ctsio, 5576 /*sks_valid*/ 1, 5577 /*command*/ 0, 5578 /*field*/ 2, 5579 /*bit_valid*/ 0, 5580 /*bit*/ 0); 5581 goto bailout; 5582 } 5583 } 5584 } 5585 5586 /* 5587 * The format command will clear out the "Medium format corrupted" 5588 * status if set by the configuration code. That status is really 5589 * just a way to notify the host that we have lost the media, and 5590 * get them to issue a command that will basically make them think 5591 * they're blowing away the media. 5592 */ 5593 mtx_lock(&lun->lun_lock); 5594 lun->flags &= ~CTL_LUN_INOPERABLE; 5595 mtx_unlock(&lun->lun_lock); 5596 5597 ctl_set_success(ctsio); 5598bailout: 5599 5600 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5601 free(ctsio->kern_data_ptr, M_CTL); 5602 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5603 } 5604 5605 ctl_done((union ctl_io *)ctsio); 5606 return (CTL_RETVAL_COMPLETE); 5607} 5608 5609int 5610ctl_read_buffer(struct ctl_scsiio *ctsio) 5611{ 5612 struct scsi_read_buffer *cdb; 5613 struct ctl_lun *lun; 5614 int buffer_offset, len; 5615 static uint8_t descr[4]; 5616 static uint8_t echo_descr[4] = { 0 }; 5617 5618 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5619 5620 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5621 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5622 5623 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA && 5624 (cdb->byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5625 (cdb->byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5626 ctl_set_invalid_field(ctsio, 5627 /*sks_valid*/ 1, 5628 /*command*/ 1, 5629 /*field*/ 1, 5630 /*bit_valid*/ 1, 5631 /*bit*/ 4); 5632 ctl_done((union ctl_io *)ctsio); 5633 return (CTL_RETVAL_COMPLETE); 5634 } 5635 5636 len = scsi_3btoul(cdb->length); 5637 buffer_offset = scsi_3btoul(cdb->offset); 5638 5639 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5640 ctl_set_invalid_field(ctsio, 5641 /*sks_valid*/ 1, 5642 /*command*/ 1, 5643 /*field*/ 6, 5644 /*bit_valid*/ 0, 5645 /*bit*/ 0); 5646 ctl_done((union ctl_io *)ctsio); 5647 return (CTL_RETVAL_COMPLETE); 5648 } 5649 5650 if ((cdb->byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5651 descr[0] = 0; 5652 scsi_ulto3b(CTL_WRITE_BUFFER_SIZE, &descr[1]); 5653 ctsio->kern_data_ptr = descr; 5654 len = min(len, sizeof(descr)); 5655 } else if ((cdb->byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5656 ctsio->kern_data_ptr = echo_descr; 5657 len = min(len, sizeof(echo_descr)); 5658 } else { 5659 if (lun->write_buffer == NULL) { 5660 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5661 M_CTL, M_WAITOK); 5662 } 5663 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5664 } 5665 ctsio->kern_data_len = len; 5666 ctsio->kern_total_len = len; 5667 ctsio->kern_data_resid = 0; 5668 ctsio->kern_rel_offset = 0; 5669 ctsio->kern_sg_entries = 0; 5670 ctl_set_success(ctsio); 5671 ctsio->be_move_done = ctl_config_move_done; 5672 ctl_datamove((union ctl_io *)ctsio); 5673 return (CTL_RETVAL_COMPLETE); 5674} 5675 5676int 5677ctl_write_buffer(struct ctl_scsiio *ctsio) 5678{ 5679 struct scsi_write_buffer *cdb; 5680 struct ctl_lun *lun; 5681 int buffer_offset, len; 5682 5683 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5684 5685 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5686 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5687 5688 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5689 ctl_set_invalid_field(ctsio, 5690 /*sks_valid*/ 1, 5691 /*command*/ 1, 5692 /*field*/ 1, 5693 /*bit_valid*/ 1, 5694 /*bit*/ 4); 5695 ctl_done((union ctl_io *)ctsio); 5696 return (CTL_RETVAL_COMPLETE); 5697 } 5698 5699 len = scsi_3btoul(cdb->length); 5700 buffer_offset = scsi_3btoul(cdb->offset); 5701 5702 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5703 ctl_set_invalid_field(ctsio, 5704 /*sks_valid*/ 1, 5705 /*command*/ 1, 5706 /*field*/ 6, 5707 /*bit_valid*/ 0, 5708 /*bit*/ 0); 5709 ctl_done((union ctl_io *)ctsio); 5710 return (CTL_RETVAL_COMPLETE); 5711 } 5712 5713 /* 5714 * If we've got a kernel request that hasn't been malloced yet, 5715 * malloc it and tell the caller the data buffer is here. 5716 */ 5717 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5718 if (lun->write_buffer == NULL) { 5719 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5720 M_CTL, M_WAITOK); 5721 } 5722 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5723 ctsio->kern_data_len = len; 5724 ctsio->kern_total_len = len; 5725 ctsio->kern_data_resid = 0; 5726 ctsio->kern_rel_offset = 0; 5727 ctsio->kern_sg_entries = 0; 5728 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5729 ctsio->be_move_done = ctl_config_move_done; 5730 ctl_datamove((union ctl_io *)ctsio); 5731 5732 return (CTL_RETVAL_COMPLETE); 5733 } 5734 5735 ctl_set_success(ctsio); 5736 ctl_done((union ctl_io *)ctsio); 5737 return (CTL_RETVAL_COMPLETE); 5738} 5739 5740int 5741ctl_write_same(struct ctl_scsiio *ctsio) 5742{ 5743 struct ctl_lun *lun; 5744 struct ctl_lba_len_flags *lbalen; 5745 uint64_t lba; 5746 uint32_t num_blocks; 5747 int len, retval; 5748 uint8_t byte2; 5749 5750 retval = CTL_RETVAL_COMPLETE; 5751 5752 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5753 5754 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5755 5756 switch (ctsio->cdb[0]) { 5757 case WRITE_SAME_10: { 5758 struct scsi_write_same_10 *cdb; 5759 5760 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5761 5762 lba = scsi_4btoul(cdb->addr); 5763 num_blocks = scsi_2btoul(cdb->length); 5764 byte2 = cdb->byte2; 5765 break; 5766 } 5767 case WRITE_SAME_16: { 5768 struct scsi_write_same_16 *cdb; 5769 5770 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5771 5772 lba = scsi_8btou64(cdb->addr); 5773 num_blocks = scsi_4btoul(cdb->length); 5774 byte2 = cdb->byte2; 5775 break; 5776 } 5777 default: 5778 /* 5779 * We got a command we don't support. This shouldn't 5780 * happen, commands should be filtered out above us. 5781 */ 5782 ctl_set_invalid_opcode(ctsio); 5783 ctl_done((union ctl_io *)ctsio); 5784 5785 return (CTL_RETVAL_COMPLETE); 5786 break; /* NOTREACHED */ 5787 } 5788 5789 /* NDOB and ANCHOR flags can be used only together with UNMAP */ 5790 if ((byte2 & SWS_UNMAP) == 0 && 5791 (byte2 & (SWS_NDOB | SWS_ANCHOR)) != 0) { 5792 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5793 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5794 ctl_done((union ctl_io *)ctsio); 5795 return (CTL_RETVAL_COMPLETE); 5796 } 5797 5798 /* 5799 * The first check is to make sure we're in bounds, the second 5800 * check is to catch wrap-around problems. If the lba + num blocks 5801 * is less than the lba, then we've wrapped around and the block 5802 * range is invalid anyway. 5803 */ 5804 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5805 || ((lba + num_blocks) < lba)) { 5806 ctl_set_lba_out_of_range(ctsio); 5807 ctl_done((union ctl_io *)ctsio); 5808 return (CTL_RETVAL_COMPLETE); 5809 } 5810 5811 /* Zero number of blocks means "to the last logical block" */ 5812 if (num_blocks == 0) { 5813 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5814 ctl_set_invalid_field(ctsio, 5815 /*sks_valid*/ 0, 5816 /*command*/ 1, 5817 /*field*/ 0, 5818 /*bit_valid*/ 0, 5819 /*bit*/ 0); 5820 ctl_done((union ctl_io *)ctsio); 5821 return (CTL_RETVAL_COMPLETE); 5822 } 5823 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5824 } 5825 5826 len = lun->be_lun->blocksize; 5827 5828 /* 5829 * If we've got a kernel request that hasn't been malloced yet, 5830 * malloc it and tell the caller the data buffer is here. 5831 */ 5832 if ((byte2 & SWS_NDOB) == 0 && 5833 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5834 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5835 ctsio->kern_data_len = len; 5836 ctsio->kern_total_len = len; 5837 ctsio->kern_data_resid = 0; 5838 ctsio->kern_rel_offset = 0; 5839 ctsio->kern_sg_entries = 0; 5840 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5841 ctsio->be_move_done = ctl_config_move_done; 5842 ctl_datamove((union ctl_io *)ctsio); 5843 5844 return (CTL_RETVAL_COMPLETE); 5845 } 5846 5847 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5848 lbalen->lba = lba; 5849 lbalen->len = num_blocks; 5850 lbalen->flags = byte2; 5851 retval = lun->backend->config_write((union ctl_io *)ctsio); 5852 5853 return (retval); 5854} 5855 5856int 5857ctl_unmap(struct ctl_scsiio *ctsio) 5858{ 5859 struct ctl_lun *lun; 5860 struct scsi_unmap *cdb; 5861 struct ctl_ptr_len_flags *ptrlen; 5862 struct scsi_unmap_header *hdr; 5863 struct scsi_unmap_desc *buf, *end, *endnz, *range; 5864 uint64_t lba; 5865 uint32_t num_blocks; 5866 int len, retval; 5867 uint8_t byte2; 5868 5869 retval = CTL_RETVAL_COMPLETE; 5870 5871 CTL_DEBUG_PRINT(("ctl_unmap\n")); 5872 5873 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5874 cdb = (struct scsi_unmap *)ctsio->cdb; 5875 5876 len = scsi_2btoul(cdb->length); 5877 byte2 = cdb->byte2; 5878 5879 /* 5880 * If we've got a kernel request that hasn't been malloced yet, 5881 * malloc it and tell the caller the data buffer is here. 5882 */ 5883 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5884 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5885 ctsio->kern_data_len = len; 5886 ctsio->kern_total_len = len; 5887 ctsio->kern_data_resid = 0; 5888 ctsio->kern_rel_offset = 0; 5889 ctsio->kern_sg_entries = 0; 5890 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5891 ctsio->be_move_done = ctl_config_move_done; 5892 ctl_datamove((union ctl_io *)ctsio); 5893 5894 return (CTL_RETVAL_COMPLETE); 5895 } 5896 5897 len = ctsio->kern_total_len - ctsio->kern_data_resid; 5898 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 5899 if (len < sizeof (*hdr) || 5900 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 5901 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 5902 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 5903 ctl_set_invalid_field(ctsio, 5904 /*sks_valid*/ 0, 5905 /*command*/ 0, 5906 /*field*/ 0, 5907 /*bit_valid*/ 0, 5908 /*bit*/ 0); 5909 goto done; 5910 } 5911 len = scsi_2btoul(hdr->desc_length); 5912 buf = (struct scsi_unmap_desc *)(hdr + 1); 5913 end = buf + len / sizeof(*buf); 5914 5915 endnz = buf; 5916 for (range = buf; range < end; range++) { 5917 lba = scsi_8btou64(range->lba); 5918 num_blocks = scsi_4btoul(range->length); 5919 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5920 || ((lba + num_blocks) < lba)) { 5921 ctl_set_lba_out_of_range(ctsio); 5922 ctl_done((union ctl_io *)ctsio); 5923 return (CTL_RETVAL_COMPLETE); 5924 } 5925 if (num_blocks != 0) 5926 endnz = range + 1; 5927 } 5928 5929 /* 5930 * Block backend can not handle zero last range. 5931 * Filter it out and return if there is nothing left. 5932 */ 5933 len = (uint8_t *)endnz - (uint8_t *)buf; 5934 if (len == 0) { 5935 ctl_set_success(ctsio); 5936 goto done; 5937 } 5938 5939 mtx_lock(&lun->lun_lock); 5940 ptrlen = (struct ctl_ptr_len_flags *) 5941 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5942 ptrlen->ptr = (void *)buf; 5943 ptrlen->len = len; 5944 ptrlen->flags = byte2; 5945 ctl_check_blocked(lun); 5946 mtx_unlock(&lun->lun_lock); 5947 5948 retval = lun->backend->config_write((union ctl_io *)ctsio); 5949 return (retval); 5950 5951done: 5952 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5953 free(ctsio->kern_data_ptr, M_CTL); 5954 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5955 } 5956 ctl_done((union ctl_io *)ctsio); 5957 return (CTL_RETVAL_COMPLETE); 5958} 5959 5960/* 5961 * Note that this function currently doesn't actually do anything inside 5962 * CTL to enforce things if the DQue bit is turned on. 5963 * 5964 * Also note that this function can't be used in the default case, because 5965 * the DQue bit isn't set in the changeable mask for the control mode page 5966 * anyway. This is just here as an example for how to implement a page 5967 * handler, and a placeholder in case we want to allow the user to turn 5968 * tagged queueing on and off. 5969 * 5970 * The D_SENSE bit handling is functional, however, and will turn 5971 * descriptor sense on and off for a given LUN. 5972 */ 5973int 5974ctl_control_page_handler(struct ctl_scsiio *ctsio, 5975 struct ctl_page_index *page_index, uint8_t *page_ptr) 5976{ 5977 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 5978 struct ctl_lun *lun; 5979 struct ctl_softc *softc; 5980 int set_ua; 5981 uint32_t initidx; 5982 5983 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5984 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5985 set_ua = 0; 5986 5987 user_cp = (struct scsi_control_page *)page_ptr; 5988 current_cp = (struct scsi_control_page *) 5989 (page_index->page_data + (page_index->page_len * 5990 CTL_PAGE_CURRENT)); 5991 saved_cp = (struct scsi_control_page *) 5992 (page_index->page_data + (page_index->page_len * 5993 CTL_PAGE_SAVED)); 5994 5995 softc = control_softc; 5996 5997 mtx_lock(&lun->lun_lock); 5998 if (((current_cp->rlec & SCP_DSENSE) == 0) 5999 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 6000 /* 6001 * Descriptor sense is currently turned off and the user 6002 * wants to turn it on. 6003 */ 6004 current_cp->rlec |= SCP_DSENSE; 6005 saved_cp->rlec |= SCP_DSENSE; 6006 lun->flags |= CTL_LUN_SENSE_DESC; 6007 set_ua = 1; 6008 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 6009 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 6010 /* 6011 * Descriptor sense is currently turned on, and the user 6012 * wants to turn it off. 6013 */ 6014 current_cp->rlec &= ~SCP_DSENSE; 6015 saved_cp->rlec &= ~SCP_DSENSE; 6016 lun->flags &= ~CTL_LUN_SENSE_DESC; 6017 set_ua = 1; 6018 } 6019 if ((current_cp->queue_flags & SCP_QUEUE_ALG_MASK) != 6020 (user_cp->queue_flags & SCP_QUEUE_ALG_MASK)) { 6021 current_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6022 current_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6023 saved_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6024 saved_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6025 set_ua = 1; 6026 } 6027 if ((current_cp->eca_and_aen & SCP_SWP) != 6028 (user_cp->eca_and_aen & SCP_SWP)) { 6029 current_cp->eca_and_aen &= ~SCP_SWP; 6030 current_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6031 saved_cp->eca_and_aen &= ~SCP_SWP; 6032 saved_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6033 set_ua = 1; 6034 } 6035 if (set_ua != 0) { 6036 int i; 6037 /* 6038 * Let other initiators know that the mode 6039 * parameters for this LUN have changed. 6040 */ 6041 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6042 if (i == initidx) 6043 continue; 6044 6045 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6046 } 6047 } 6048 mtx_unlock(&lun->lun_lock); 6049 6050 return (0); 6051} 6052 6053int 6054ctl_caching_sp_handler(struct ctl_scsiio *ctsio, 6055 struct ctl_page_index *page_index, uint8_t *page_ptr) 6056{ 6057 struct scsi_caching_page *current_cp, *saved_cp, *user_cp; 6058 struct ctl_lun *lun; 6059 int set_ua; 6060 uint32_t initidx; 6061 6062 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6063 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6064 set_ua = 0; 6065 6066 user_cp = (struct scsi_caching_page *)page_ptr; 6067 current_cp = (struct scsi_caching_page *) 6068 (page_index->page_data + (page_index->page_len * 6069 CTL_PAGE_CURRENT)); 6070 saved_cp = (struct scsi_caching_page *) 6071 (page_index->page_data + (page_index->page_len * 6072 CTL_PAGE_SAVED)); 6073 6074 mtx_lock(&lun->lun_lock); 6075 if ((current_cp->flags1 & (SCP_WCE | SCP_RCD)) != 6076 (user_cp->flags1 & (SCP_WCE | SCP_RCD))) { 6077 current_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6078 current_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6079 saved_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6080 saved_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6081 set_ua = 1; 6082 } 6083 if (set_ua != 0) { 6084 int i; 6085 /* 6086 * Let other initiators know that the mode 6087 * parameters for this LUN have changed. 6088 */ 6089 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6090 if (i == initidx) 6091 continue; 6092 6093 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6094 } 6095 } 6096 mtx_unlock(&lun->lun_lock); 6097 6098 return (0); 6099} 6100 6101int 6102ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 6103 struct ctl_page_index *page_index, 6104 uint8_t *page_ptr) 6105{ 6106 uint8_t *c; 6107 int i; 6108 6109 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 6110 ctl_time_io_secs = 6111 (c[0] << 8) | 6112 (c[1] << 0) | 6113 0; 6114 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 6115 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 6116 printf("page data:"); 6117 for (i=0; i<8; i++) 6118 printf(" %.2x",page_ptr[i]); 6119 printf("\n"); 6120 return (0); 6121} 6122 6123int 6124ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 6125 struct ctl_page_index *page_index, 6126 int pc) 6127{ 6128 struct copan_debugconf_subpage *page; 6129 6130 page = (struct copan_debugconf_subpage *)page_index->page_data + 6131 (page_index->page_len * pc); 6132 6133 switch (pc) { 6134 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6135 case SMS_PAGE_CTRL_DEFAULT >> 6: 6136 case SMS_PAGE_CTRL_SAVED >> 6: 6137 /* 6138 * We don't update the changable or default bits for this page. 6139 */ 6140 break; 6141 case SMS_PAGE_CTRL_CURRENT >> 6: 6142 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 6143 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 6144 break; 6145 default: 6146#ifdef NEEDTOPORT 6147 EPRINT(0, "Invalid PC %d!!", pc); 6148#endif /* NEEDTOPORT */ 6149 break; 6150 } 6151 return (0); 6152} 6153 6154 6155static int 6156ctl_do_mode_select(union ctl_io *io) 6157{ 6158 struct scsi_mode_page_header *page_header; 6159 struct ctl_page_index *page_index; 6160 struct ctl_scsiio *ctsio; 6161 int control_dev, page_len; 6162 int page_len_offset, page_len_size; 6163 union ctl_modepage_info *modepage_info; 6164 struct ctl_lun *lun; 6165 int *len_left, *len_used; 6166 int retval, i; 6167 6168 ctsio = &io->scsiio; 6169 page_index = NULL; 6170 page_len = 0; 6171 retval = CTL_RETVAL_COMPLETE; 6172 6173 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6174 6175 if (lun->be_lun->lun_type != T_DIRECT) 6176 control_dev = 1; 6177 else 6178 control_dev = 0; 6179 6180 modepage_info = (union ctl_modepage_info *) 6181 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6182 len_left = &modepage_info->header.len_left; 6183 len_used = &modepage_info->header.len_used; 6184 6185do_next_page: 6186 6187 page_header = (struct scsi_mode_page_header *) 6188 (ctsio->kern_data_ptr + *len_used); 6189 6190 if (*len_left == 0) { 6191 free(ctsio->kern_data_ptr, M_CTL); 6192 ctl_set_success(ctsio); 6193 ctl_done((union ctl_io *)ctsio); 6194 return (CTL_RETVAL_COMPLETE); 6195 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6196 6197 free(ctsio->kern_data_ptr, M_CTL); 6198 ctl_set_param_len_error(ctsio); 6199 ctl_done((union ctl_io *)ctsio); 6200 return (CTL_RETVAL_COMPLETE); 6201 6202 } else if ((page_header->page_code & SMPH_SPF) 6203 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6204 6205 free(ctsio->kern_data_ptr, M_CTL); 6206 ctl_set_param_len_error(ctsio); 6207 ctl_done((union ctl_io *)ctsio); 6208 return (CTL_RETVAL_COMPLETE); 6209 } 6210 6211 6212 /* 6213 * XXX KDM should we do something with the block descriptor? 6214 */ 6215 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6216 6217 if ((control_dev != 0) 6218 && (lun->mode_pages.index[i].page_flags & 6219 CTL_PAGE_FLAG_DISK_ONLY)) 6220 continue; 6221 6222 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 6223 (page_header->page_code & SMPH_PC_MASK)) 6224 continue; 6225 6226 /* 6227 * If neither page has a subpage code, then we've got a 6228 * match. 6229 */ 6230 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 6231 && ((page_header->page_code & SMPH_SPF) == 0)) { 6232 page_index = &lun->mode_pages.index[i]; 6233 page_len = page_header->page_length; 6234 break; 6235 } 6236 6237 /* 6238 * If both pages have subpages, then the subpage numbers 6239 * have to match. 6240 */ 6241 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 6242 && (page_header->page_code & SMPH_SPF)) { 6243 struct scsi_mode_page_header_sp *sph; 6244 6245 sph = (struct scsi_mode_page_header_sp *)page_header; 6246 6247 if (lun->mode_pages.index[i].subpage == 6248 sph->subpage) { 6249 page_index = &lun->mode_pages.index[i]; 6250 page_len = scsi_2btoul(sph->page_length); 6251 break; 6252 } 6253 } 6254 } 6255 6256 /* 6257 * If we couldn't find the page, or if we don't have a mode select 6258 * handler for it, send back an error to the user. 6259 */ 6260 if ((page_index == NULL) 6261 || (page_index->select_handler == NULL)) { 6262 ctl_set_invalid_field(ctsio, 6263 /*sks_valid*/ 1, 6264 /*command*/ 0, 6265 /*field*/ *len_used, 6266 /*bit_valid*/ 0, 6267 /*bit*/ 0); 6268 free(ctsio->kern_data_ptr, M_CTL); 6269 ctl_done((union ctl_io *)ctsio); 6270 return (CTL_RETVAL_COMPLETE); 6271 } 6272 6273 if (page_index->page_code & SMPH_SPF) { 6274 page_len_offset = 2; 6275 page_len_size = 2; 6276 } else { 6277 page_len_size = 1; 6278 page_len_offset = 1; 6279 } 6280 6281 /* 6282 * If the length the initiator gives us isn't the one we specify in 6283 * the mode page header, or if they didn't specify enough data in 6284 * the CDB to avoid truncating this page, kick out the request. 6285 */ 6286 if ((page_len != (page_index->page_len - page_len_offset - 6287 page_len_size)) 6288 || (*len_left < page_index->page_len)) { 6289 6290 6291 ctl_set_invalid_field(ctsio, 6292 /*sks_valid*/ 1, 6293 /*command*/ 0, 6294 /*field*/ *len_used + page_len_offset, 6295 /*bit_valid*/ 0, 6296 /*bit*/ 0); 6297 free(ctsio->kern_data_ptr, M_CTL); 6298 ctl_done((union ctl_io *)ctsio); 6299 return (CTL_RETVAL_COMPLETE); 6300 } 6301 6302 /* 6303 * Run through the mode page, checking to make sure that the bits 6304 * the user changed are actually legal for him to change. 6305 */ 6306 for (i = 0; i < page_index->page_len; i++) { 6307 uint8_t *user_byte, *change_mask, *current_byte; 6308 int bad_bit; 6309 int j; 6310 6311 user_byte = (uint8_t *)page_header + i; 6312 change_mask = page_index->page_data + 6313 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6314 current_byte = page_index->page_data + 6315 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6316 6317 /* 6318 * Check to see whether the user set any bits in this byte 6319 * that he is not allowed to set. 6320 */ 6321 if ((*user_byte & ~(*change_mask)) == 6322 (*current_byte & ~(*change_mask))) 6323 continue; 6324 6325 /* 6326 * Go through bit by bit to determine which one is illegal. 6327 */ 6328 bad_bit = 0; 6329 for (j = 7; j >= 0; j--) { 6330 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6331 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6332 bad_bit = i; 6333 break; 6334 } 6335 } 6336 ctl_set_invalid_field(ctsio, 6337 /*sks_valid*/ 1, 6338 /*command*/ 0, 6339 /*field*/ *len_used + i, 6340 /*bit_valid*/ 1, 6341 /*bit*/ bad_bit); 6342 free(ctsio->kern_data_ptr, M_CTL); 6343 ctl_done((union ctl_io *)ctsio); 6344 return (CTL_RETVAL_COMPLETE); 6345 } 6346 6347 /* 6348 * Decrement these before we call the page handler, since we may 6349 * end up getting called back one way or another before the handler 6350 * returns to this context. 6351 */ 6352 *len_left -= page_index->page_len; 6353 *len_used += page_index->page_len; 6354 6355 retval = page_index->select_handler(ctsio, page_index, 6356 (uint8_t *)page_header); 6357 6358 /* 6359 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6360 * wait until this queued command completes to finish processing 6361 * the mode page. If it returns anything other than 6362 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6363 * already set the sense information, freed the data pointer, and 6364 * completed the io for us. 6365 */ 6366 if (retval != CTL_RETVAL_COMPLETE) 6367 goto bailout_no_done; 6368 6369 /* 6370 * If the initiator sent us more than one page, parse the next one. 6371 */ 6372 if (*len_left > 0) 6373 goto do_next_page; 6374 6375 ctl_set_success(ctsio); 6376 free(ctsio->kern_data_ptr, M_CTL); 6377 ctl_done((union ctl_io *)ctsio); 6378 6379bailout_no_done: 6380 6381 return (CTL_RETVAL_COMPLETE); 6382 6383} 6384 6385int 6386ctl_mode_select(struct ctl_scsiio *ctsio) 6387{ 6388 int param_len, pf, sp; 6389 int header_size, bd_len; 6390 int len_left, len_used; 6391 struct ctl_page_index *page_index; 6392 struct ctl_lun *lun; 6393 int control_dev, page_len; 6394 union ctl_modepage_info *modepage_info; 6395 int retval; 6396 6397 pf = 0; 6398 sp = 0; 6399 page_len = 0; 6400 len_used = 0; 6401 len_left = 0; 6402 retval = 0; 6403 bd_len = 0; 6404 page_index = NULL; 6405 6406 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6407 6408 if (lun->be_lun->lun_type != T_DIRECT) 6409 control_dev = 1; 6410 else 6411 control_dev = 0; 6412 6413 switch (ctsio->cdb[0]) { 6414 case MODE_SELECT_6: { 6415 struct scsi_mode_select_6 *cdb; 6416 6417 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6418 6419 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6420 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6421 6422 param_len = cdb->length; 6423 header_size = sizeof(struct scsi_mode_header_6); 6424 break; 6425 } 6426 case MODE_SELECT_10: { 6427 struct scsi_mode_select_10 *cdb; 6428 6429 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6430 6431 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6432 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6433 6434 param_len = scsi_2btoul(cdb->length); 6435 header_size = sizeof(struct scsi_mode_header_10); 6436 break; 6437 } 6438 default: 6439 ctl_set_invalid_opcode(ctsio); 6440 ctl_done((union ctl_io *)ctsio); 6441 return (CTL_RETVAL_COMPLETE); 6442 break; /* NOTREACHED */ 6443 } 6444 6445 /* 6446 * From SPC-3: 6447 * "A parameter list length of zero indicates that the Data-Out Buffer 6448 * shall be empty. This condition shall not be considered as an error." 6449 */ 6450 if (param_len == 0) { 6451 ctl_set_success(ctsio); 6452 ctl_done((union ctl_io *)ctsio); 6453 return (CTL_RETVAL_COMPLETE); 6454 } 6455 6456 /* 6457 * Since we'll hit this the first time through, prior to 6458 * allocation, we don't need to free a data buffer here. 6459 */ 6460 if (param_len < header_size) { 6461 ctl_set_param_len_error(ctsio); 6462 ctl_done((union ctl_io *)ctsio); 6463 return (CTL_RETVAL_COMPLETE); 6464 } 6465 6466 /* 6467 * Allocate the data buffer and grab the user's data. In theory, 6468 * we shouldn't have to sanity check the parameter list length here 6469 * because the maximum size is 64K. We should be able to malloc 6470 * that much without too many problems. 6471 */ 6472 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6473 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6474 ctsio->kern_data_len = param_len; 6475 ctsio->kern_total_len = param_len; 6476 ctsio->kern_data_resid = 0; 6477 ctsio->kern_rel_offset = 0; 6478 ctsio->kern_sg_entries = 0; 6479 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6480 ctsio->be_move_done = ctl_config_move_done; 6481 ctl_datamove((union ctl_io *)ctsio); 6482 6483 return (CTL_RETVAL_COMPLETE); 6484 } 6485 6486 switch (ctsio->cdb[0]) { 6487 case MODE_SELECT_6: { 6488 struct scsi_mode_header_6 *mh6; 6489 6490 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6491 bd_len = mh6->blk_desc_len; 6492 break; 6493 } 6494 case MODE_SELECT_10: { 6495 struct scsi_mode_header_10 *mh10; 6496 6497 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6498 bd_len = scsi_2btoul(mh10->blk_desc_len); 6499 break; 6500 } 6501 default: 6502 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6503 break; 6504 } 6505 6506 if (param_len < (header_size + bd_len)) { 6507 free(ctsio->kern_data_ptr, M_CTL); 6508 ctl_set_param_len_error(ctsio); 6509 ctl_done((union ctl_io *)ctsio); 6510 return (CTL_RETVAL_COMPLETE); 6511 } 6512 6513 /* 6514 * Set the IO_CONT flag, so that if this I/O gets passed to 6515 * ctl_config_write_done(), it'll get passed back to 6516 * ctl_do_mode_select() for further processing, or completion if 6517 * we're all done. 6518 */ 6519 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6520 ctsio->io_cont = ctl_do_mode_select; 6521 6522 modepage_info = (union ctl_modepage_info *) 6523 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6524 6525 memset(modepage_info, 0, sizeof(*modepage_info)); 6526 6527 len_left = param_len - header_size - bd_len; 6528 len_used = header_size + bd_len; 6529 6530 modepage_info->header.len_left = len_left; 6531 modepage_info->header.len_used = len_used; 6532 6533 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6534} 6535 6536int 6537ctl_mode_sense(struct ctl_scsiio *ctsio) 6538{ 6539 struct ctl_lun *lun; 6540 int pc, page_code, dbd, llba, subpage; 6541 int alloc_len, page_len, header_len, total_len; 6542 struct scsi_mode_block_descr *block_desc; 6543 struct ctl_page_index *page_index; 6544 int control_dev; 6545 6546 dbd = 0; 6547 llba = 0; 6548 block_desc = NULL; 6549 page_index = NULL; 6550 6551 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6552 6553 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6554 6555 if (lun->be_lun->lun_type != T_DIRECT) 6556 control_dev = 1; 6557 else 6558 control_dev = 0; 6559 6560 switch (ctsio->cdb[0]) { 6561 case MODE_SENSE_6: { 6562 struct scsi_mode_sense_6 *cdb; 6563 6564 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6565 6566 header_len = sizeof(struct scsi_mode_hdr_6); 6567 if (cdb->byte2 & SMS_DBD) 6568 dbd = 1; 6569 else 6570 header_len += sizeof(struct scsi_mode_block_descr); 6571 6572 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6573 page_code = cdb->page & SMS_PAGE_CODE; 6574 subpage = cdb->subpage; 6575 alloc_len = cdb->length; 6576 break; 6577 } 6578 case MODE_SENSE_10: { 6579 struct scsi_mode_sense_10 *cdb; 6580 6581 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6582 6583 header_len = sizeof(struct scsi_mode_hdr_10); 6584 6585 if (cdb->byte2 & SMS_DBD) 6586 dbd = 1; 6587 else 6588 header_len += sizeof(struct scsi_mode_block_descr); 6589 if (cdb->byte2 & SMS10_LLBAA) 6590 llba = 1; 6591 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6592 page_code = cdb->page & SMS_PAGE_CODE; 6593 subpage = cdb->subpage; 6594 alloc_len = scsi_2btoul(cdb->length); 6595 break; 6596 } 6597 default: 6598 ctl_set_invalid_opcode(ctsio); 6599 ctl_done((union ctl_io *)ctsio); 6600 return (CTL_RETVAL_COMPLETE); 6601 break; /* NOTREACHED */ 6602 } 6603 6604 /* 6605 * We have to make a first pass through to calculate the size of 6606 * the pages that match the user's query. Then we allocate enough 6607 * memory to hold it, and actually copy the data into the buffer. 6608 */ 6609 switch (page_code) { 6610 case SMS_ALL_PAGES_PAGE: { 6611 int i; 6612 6613 page_len = 0; 6614 6615 /* 6616 * At the moment, values other than 0 and 0xff here are 6617 * reserved according to SPC-3. 6618 */ 6619 if ((subpage != SMS_SUBPAGE_PAGE_0) 6620 && (subpage != SMS_SUBPAGE_ALL)) { 6621 ctl_set_invalid_field(ctsio, 6622 /*sks_valid*/ 1, 6623 /*command*/ 1, 6624 /*field*/ 3, 6625 /*bit_valid*/ 0, 6626 /*bit*/ 0); 6627 ctl_done((union ctl_io *)ctsio); 6628 return (CTL_RETVAL_COMPLETE); 6629 } 6630 6631 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6632 if ((control_dev != 0) 6633 && (lun->mode_pages.index[i].page_flags & 6634 CTL_PAGE_FLAG_DISK_ONLY)) 6635 continue; 6636 6637 /* 6638 * We don't use this subpage if the user didn't 6639 * request all subpages. 6640 */ 6641 if ((lun->mode_pages.index[i].subpage != 0) 6642 && (subpage == SMS_SUBPAGE_PAGE_0)) 6643 continue; 6644 6645#if 0 6646 printf("found page %#x len %d\n", 6647 lun->mode_pages.index[i].page_code & 6648 SMPH_PC_MASK, 6649 lun->mode_pages.index[i].page_len); 6650#endif 6651 page_len += lun->mode_pages.index[i].page_len; 6652 } 6653 break; 6654 } 6655 default: { 6656 int i; 6657 6658 page_len = 0; 6659 6660 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6661 /* Look for the right page code */ 6662 if ((lun->mode_pages.index[i].page_code & 6663 SMPH_PC_MASK) != page_code) 6664 continue; 6665 6666 /* Look for the right subpage or the subpage wildcard*/ 6667 if ((lun->mode_pages.index[i].subpage != subpage) 6668 && (subpage != SMS_SUBPAGE_ALL)) 6669 continue; 6670 6671 /* Make sure the page is supported for this dev type */ 6672 if ((control_dev != 0) 6673 && (lun->mode_pages.index[i].page_flags & 6674 CTL_PAGE_FLAG_DISK_ONLY)) 6675 continue; 6676 6677#if 0 6678 printf("found page %#x len %d\n", 6679 lun->mode_pages.index[i].page_code & 6680 SMPH_PC_MASK, 6681 lun->mode_pages.index[i].page_len); 6682#endif 6683 6684 page_len += lun->mode_pages.index[i].page_len; 6685 } 6686 6687 if (page_len == 0) { 6688 ctl_set_invalid_field(ctsio, 6689 /*sks_valid*/ 1, 6690 /*command*/ 1, 6691 /*field*/ 2, 6692 /*bit_valid*/ 1, 6693 /*bit*/ 5); 6694 ctl_done((union ctl_io *)ctsio); 6695 return (CTL_RETVAL_COMPLETE); 6696 } 6697 break; 6698 } 6699 } 6700 6701 total_len = header_len + page_len; 6702#if 0 6703 printf("header_len = %d, page_len = %d, total_len = %d\n", 6704 header_len, page_len, total_len); 6705#endif 6706 6707 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6708 ctsio->kern_sg_entries = 0; 6709 ctsio->kern_data_resid = 0; 6710 ctsio->kern_rel_offset = 0; 6711 if (total_len < alloc_len) { 6712 ctsio->residual = alloc_len - total_len; 6713 ctsio->kern_data_len = total_len; 6714 ctsio->kern_total_len = total_len; 6715 } else { 6716 ctsio->residual = 0; 6717 ctsio->kern_data_len = alloc_len; 6718 ctsio->kern_total_len = alloc_len; 6719 } 6720 6721 switch (ctsio->cdb[0]) { 6722 case MODE_SENSE_6: { 6723 struct scsi_mode_hdr_6 *header; 6724 6725 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6726 6727 header->datalen = ctl_min(total_len - 1, 254); 6728 if (control_dev == 0) { 6729 header->dev_specific = 0x10; /* DPOFUA */ 6730 if ((lun->flags & CTL_LUN_READONLY) || 6731 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6732 .eca_and_aen & SCP_SWP) != 0) 6733 header->dev_specific |= 0x80; /* WP */ 6734 } 6735 if (dbd) 6736 header->block_descr_len = 0; 6737 else 6738 header->block_descr_len = 6739 sizeof(struct scsi_mode_block_descr); 6740 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6741 break; 6742 } 6743 case MODE_SENSE_10: { 6744 struct scsi_mode_hdr_10 *header; 6745 int datalen; 6746 6747 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6748 6749 datalen = ctl_min(total_len - 2, 65533); 6750 scsi_ulto2b(datalen, header->datalen); 6751 if (control_dev == 0) { 6752 header->dev_specific = 0x10; /* DPOFUA */ 6753 if ((lun->flags & CTL_LUN_READONLY) || 6754 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6755 .eca_and_aen & SCP_SWP) != 0) 6756 header->dev_specific |= 0x80; /* WP */ 6757 } 6758 if (dbd) 6759 scsi_ulto2b(0, header->block_descr_len); 6760 else 6761 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 6762 header->block_descr_len); 6763 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6764 break; 6765 } 6766 default: 6767 panic("invalid CDB type %#x", ctsio->cdb[0]); 6768 break; /* NOTREACHED */ 6769 } 6770 6771 /* 6772 * If we've got a disk, use its blocksize in the block 6773 * descriptor. Otherwise, just set it to 0. 6774 */ 6775 if (dbd == 0) { 6776 if (control_dev == 0) 6777 scsi_ulto3b(lun->be_lun->blocksize, 6778 block_desc->block_len); 6779 else 6780 scsi_ulto3b(0, block_desc->block_len); 6781 } 6782 6783 switch (page_code) { 6784 case SMS_ALL_PAGES_PAGE: { 6785 int i, data_used; 6786 6787 data_used = header_len; 6788 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6789 struct ctl_page_index *page_index; 6790 6791 page_index = &lun->mode_pages.index[i]; 6792 6793 if ((control_dev != 0) 6794 && (page_index->page_flags & 6795 CTL_PAGE_FLAG_DISK_ONLY)) 6796 continue; 6797 6798 /* 6799 * We don't use this subpage if the user didn't 6800 * request all subpages. We already checked (above) 6801 * to make sure the user only specified a subpage 6802 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 6803 */ 6804 if ((page_index->subpage != 0) 6805 && (subpage == SMS_SUBPAGE_PAGE_0)) 6806 continue; 6807 6808 /* 6809 * Call the handler, if it exists, to update the 6810 * page to the latest values. 6811 */ 6812 if (page_index->sense_handler != NULL) 6813 page_index->sense_handler(ctsio, page_index,pc); 6814 6815 memcpy(ctsio->kern_data_ptr + data_used, 6816 page_index->page_data + 6817 (page_index->page_len * pc), 6818 page_index->page_len); 6819 data_used += page_index->page_len; 6820 } 6821 break; 6822 } 6823 default: { 6824 int i, data_used; 6825 6826 data_used = header_len; 6827 6828 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6829 struct ctl_page_index *page_index; 6830 6831 page_index = &lun->mode_pages.index[i]; 6832 6833 /* Look for the right page code */ 6834 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6835 continue; 6836 6837 /* Look for the right subpage or the subpage wildcard*/ 6838 if ((page_index->subpage != subpage) 6839 && (subpage != SMS_SUBPAGE_ALL)) 6840 continue; 6841 6842 /* Make sure the page is supported for this dev type */ 6843 if ((control_dev != 0) 6844 && (page_index->page_flags & 6845 CTL_PAGE_FLAG_DISK_ONLY)) 6846 continue; 6847 6848 /* 6849 * Call the handler, if it exists, to update the 6850 * page to the latest values. 6851 */ 6852 if (page_index->sense_handler != NULL) 6853 page_index->sense_handler(ctsio, page_index,pc); 6854 6855 memcpy(ctsio->kern_data_ptr + data_used, 6856 page_index->page_data + 6857 (page_index->page_len * pc), 6858 page_index->page_len); 6859 data_used += page_index->page_len; 6860 } 6861 break; 6862 } 6863 } 6864 6865 ctl_set_success(ctsio); 6866 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6867 ctsio->be_move_done = ctl_config_move_done; 6868 ctl_datamove((union ctl_io *)ctsio); 6869 return (CTL_RETVAL_COMPLETE); 6870} 6871 6872int 6873ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio, 6874 struct ctl_page_index *page_index, 6875 int pc) 6876{ 6877 struct ctl_lun *lun; 6878 struct scsi_log_param_header *phdr; 6879 uint8_t *data; 6880 uint64_t val; 6881 6882 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6883 data = page_index->page_data; 6884 6885 if (lun->backend->lun_attr != NULL && 6886 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksavail")) 6887 != UINT64_MAX) { 6888 phdr = (struct scsi_log_param_header *)data; 6889 scsi_ulto2b(0x0001, phdr->param_code); 6890 phdr->param_control = SLP_LBIN | SLP_LP; 6891 phdr->param_len = 8; 6892 data = (uint8_t *)(phdr + 1); 6893 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6894 data[4] = 0x02; /* per-pool */ 6895 data += phdr->param_len; 6896 } 6897 6898 if (lun->backend->lun_attr != NULL && 6899 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksused")) 6900 != UINT64_MAX) { 6901 phdr = (struct scsi_log_param_header *)data; 6902 scsi_ulto2b(0x0002, phdr->param_code); 6903 phdr->param_control = SLP_LBIN | SLP_LP; 6904 phdr->param_len = 8; 6905 data = (uint8_t *)(phdr + 1); 6906 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6907 data[4] = 0x01; /* per-LUN */ 6908 data += phdr->param_len; 6909 } 6910 6911 if (lun->backend->lun_attr != NULL && 6912 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksavail")) 6913 != UINT64_MAX) { 6914 phdr = (struct scsi_log_param_header *)data; 6915 scsi_ulto2b(0x00f1, phdr->param_code); 6916 phdr->param_control = SLP_LBIN | SLP_LP; 6917 phdr->param_len = 8; 6918 data = (uint8_t *)(phdr + 1); 6919 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6920 data[4] = 0x02; /* per-pool */ 6921 data += phdr->param_len; 6922 } 6923 6924 if (lun->backend->lun_attr != NULL && 6925 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksused")) 6926 != UINT64_MAX) { 6927 phdr = (struct scsi_log_param_header *)data; 6928 scsi_ulto2b(0x00f2, phdr->param_code); 6929 phdr->param_control = SLP_LBIN | SLP_LP; 6930 phdr->param_len = 8; 6931 data = (uint8_t *)(phdr + 1); 6932 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6933 data[4] = 0x02; /* per-pool */ 6934 data += phdr->param_len; 6935 } 6936 6937 page_index->page_len = data - page_index->page_data; 6938 return (0); 6939} 6940 6941int 6942ctl_log_sense(struct ctl_scsiio *ctsio) 6943{ 6944 struct ctl_lun *lun; 6945 int i, pc, page_code, subpage; 6946 int alloc_len, total_len; 6947 struct ctl_page_index *page_index; 6948 struct scsi_log_sense *cdb; 6949 struct scsi_log_header *header; 6950 6951 CTL_DEBUG_PRINT(("ctl_log_sense\n")); 6952 6953 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6954 cdb = (struct scsi_log_sense *)ctsio->cdb; 6955 pc = (cdb->page & SLS_PAGE_CTRL_MASK) >> 6; 6956 page_code = cdb->page & SLS_PAGE_CODE; 6957 subpage = cdb->subpage; 6958 alloc_len = scsi_2btoul(cdb->length); 6959 6960 page_index = NULL; 6961 for (i = 0; i < CTL_NUM_LOG_PAGES; i++) { 6962 page_index = &lun->log_pages.index[i]; 6963 6964 /* Look for the right page code */ 6965 if ((page_index->page_code & SL_PAGE_CODE) != page_code) 6966 continue; 6967 6968 /* Look for the right subpage or the subpage wildcard*/ 6969 if (page_index->subpage != subpage) 6970 continue; 6971 6972 break; 6973 } 6974 if (i >= CTL_NUM_LOG_PAGES) { 6975 ctl_set_invalid_field(ctsio, 6976 /*sks_valid*/ 1, 6977 /*command*/ 1, 6978 /*field*/ 2, 6979 /*bit_valid*/ 0, 6980 /*bit*/ 0); 6981 ctl_done((union ctl_io *)ctsio); 6982 return (CTL_RETVAL_COMPLETE); 6983 } 6984 6985 total_len = sizeof(struct scsi_log_header) + page_index->page_len; 6986 6987 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6988 ctsio->kern_sg_entries = 0; 6989 ctsio->kern_data_resid = 0; 6990 ctsio->kern_rel_offset = 0; 6991 if (total_len < alloc_len) { 6992 ctsio->residual = alloc_len - total_len; 6993 ctsio->kern_data_len = total_len; 6994 ctsio->kern_total_len = total_len; 6995 } else { 6996 ctsio->residual = 0; 6997 ctsio->kern_data_len = alloc_len; 6998 ctsio->kern_total_len = alloc_len; 6999 } 7000 7001 header = (struct scsi_log_header *)ctsio->kern_data_ptr; 7002 header->page = page_index->page_code; 7003 if (page_index->subpage) { 7004 header->page |= SL_SPF; 7005 header->subpage = page_index->subpage; 7006 } 7007 scsi_ulto2b(page_index->page_len, header->datalen); 7008 7009 /* 7010 * Call the handler, if it exists, to update the 7011 * page to the latest values. 7012 */ 7013 if (page_index->sense_handler != NULL) 7014 page_index->sense_handler(ctsio, page_index, pc); 7015 7016 memcpy(header + 1, page_index->page_data, page_index->page_len); 7017 7018 ctl_set_success(ctsio); 7019 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7020 ctsio->be_move_done = ctl_config_move_done; 7021 ctl_datamove((union ctl_io *)ctsio); 7022 return (CTL_RETVAL_COMPLETE); 7023} 7024 7025int 7026ctl_read_capacity(struct ctl_scsiio *ctsio) 7027{ 7028 struct scsi_read_capacity *cdb; 7029 struct scsi_read_capacity_data *data; 7030 struct ctl_lun *lun; 7031 uint32_t lba; 7032 7033 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 7034 7035 cdb = (struct scsi_read_capacity *)ctsio->cdb; 7036 7037 lba = scsi_4btoul(cdb->addr); 7038 if (((cdb->pmi & SRC_PMI) == 0) 7039 && (lba != 0)) { 7040 ctl_set_invalid_field(/*ctsio*/ ctsio, 7041 /*sks_valid*/ 1, 7042 /*command*/ 1, 7043 /*field*/ 2, 7044 /*bit_valid*/ 0, 7045 /*bit*/ 0); 7046 ctl_done((union ctl_io *)ctsio); 7047 return (CTL_RETVAL_COMPLETE); 7048 } 7049 7050 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7051 7052 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7053 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 7054 ctsio->residual = 0; 7055 ctsio->kern_data_len = sizeof(*data); 7056 ctsio->kern_total_len = sizeof(*data); 7057 ctsio->kern_data_resid = 0; 7058 ctsio->kern_rel_offset = 0; 7059 ctsio->kern_sg_entries = 0; 7060 7061 /* 7062 * If the maximum LBA is greater than 0xfffffffe, the user must 7063 * issue a SERVICE ACTION IN (16) command, with the read capacity 7064 * serivce action set. 7065 */ 7066 if (lun->be_lun->maxlba > 0xfffffffe) 7067 scsi_ulto4b(0xffffffff, data->addr); 7068 else 7069 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 7070 7071 /* 7072 * XXX KDM this may not be 512 bytes... 7073 */ 7074 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7075 7076 ctl_set_success(ctsio); 7077 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7078 ctsio->be_move_done = ctl_config_move_done; 7079 ctl_datamove((union ctl_io *)ctsio); 7080 return (CTL_RETVAL_COMPLETE); 7081} 7082 7083int 7084ctl_read_capacity_16(struct ctl_scsiio *ctsio) 7085{ 7086 struct scsi_read_capacity_16 *cdb; 7087 struct scsi_read_capacity_data_long *data; 7088 struct ctl_lun *lun; 7089 uint64_t lba; 7090 uint32_t alloc_len; 7091 7092 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 7093 7094 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 7095 7096 alloc_len = scsi_4btoul(cdb->alloc_len); 7097 lba = scsi_8btou64(cdb->addr); 7098 7099 if ((cdb->reladr & SRC16_PMI) 7100 && (lba != 0)) { 7101 ctl_set_invalid_field(/*ctsio*/ ctsio, 7102 /*sks_valid*/ 1, 7103 /*command*/ 1, 7104 /*field*/ 2, 7105 /*bit_valid*/ 0, 7106 /*bit*/ 0); 7107 ctl_done((union ctl_io *)ctsio); 7108 return (CTL_RETVAL_COMPLETE); 7109 } 7110 7111 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7112 7113 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7114 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 7115 7116 if (sizeof(*data) < alloc_len) { 7117 ctsio->residual = alloc_len - sizeof(*data); 7118 ctsio->kern_data_len = sizeof(*data); 7119 ctsio->kern_total_len = sizeof(*data); 7120 } else { 7121 ctsio->residual = 0; 7122 ctsio->kern_data_len = alloc_len; 7123 ctsio->kern_total_len = alloc_len; 7124 } 7125 ctsio->kern_data_resid = 0; 7126 ctsio->kern_rel_offset = 0; 7127 ctsio->kern_sg_entries = 0; 7128 7129 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7130 /* XXX KDM this may not be 512 bytes... */ 7131 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7132 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7133 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7134 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7135 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 7136 7137 ctl_set_success(ctsio); 7138 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7139 ctsio->be_move_done = ctl_config_move_done; 7140 ctl_datamove((union ctl_io *)ctsio); 7141 return (CTL_RETVAL_COMPLETE); 7142} 7143 7144int 7145ctl_read_defect(struct ctl_scsiio *ctsio) 7146{ 7147 struct scsi_read_defect_data_10 *ccb10; 7148 struct scsi_read_defect_data_12 *ccb12; 7149 struct scsi_read_defect_data_hdr_10 *data10; 7150 struct scsi_read_defect_data_hdr_12 *data12; 7151 uint32_t alloc_len, data_len; 7152 uint8_t format; 7153 7154 CTL_DEBUG_PRINT(("ctl_read_defect\n")); 7155 7156 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7157 ccb10 = (struct scsi_read_defect_data_10 *)&ctsio->cdb; 7158 format = ccb10->format; 7159 alloc_len = scsi_2btoul(ccb10->alloc_length); 7160 data_len = sizeof(*data10); 7161 } else { 7162 ccb12 = (struct scsi_read_defect_data_12 *)&ctsio->cdb; 7163 format = ccb12->format; 7164 alloc_len = scsi_4btoul(ccb12->alloc_length); 7165 data_len = sizeof(*data12); 7166 } 7167 if (alloc_len == 0) { 7168 ctl_set_success(ctsio); 7169 ctl_done((union ctl_io *)ctsio); 7170 return (CTL_RETVAL_COMPLETE); 7171 } 7172 7173 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 7174 if (data_len < alloc_len) { 7175 ctsio->residual = alloc_len - data_len; 7176 ctsio->kern_data_len = data_len; 7177 ctsio->kern_total_len = data_len; 7178 } else { 7179 ctsio->residual = 0; 7180 ctsio->kern_data_len = alloc_len; 7181 ctsio->kern_total_len = alloc_len; 7182 } 7183 ctsio->kern_data_resid = 0; 7184 ctsio->kern_rel_offset = 0; 7185 ctsio->kern_sg_entries = 0; 7186 7187 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7188 data10 = (struct scsi_read_defect_data_hdr_10 *) 7189 ctsio->kern_data_ptr; 7190 data10->format = format; 7191 scsi_ulto2b(0, data10->length); 7192 } else { 7193 data12 = (struct scsi_read_defect_data_hdr_12 *) 7194 ctsio->kern_data_ptr; 7195 data12->format = format; 7196 scsi_ulto2b(0, data12->generation); 7197 scsi_ulto4b(0, data12->length); 7198 } 7199 7200 ctl_set_success(ctsio); 7201 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7202 ctsio->be_move_done = ctl_config_move_done; 7203 ctl_datamove((union ctl_io *)ctsio); 7204 return (CTL_RETVAL_COMPLETE); 7205} 7206 7207int 7208ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7209{ 7210 struct scsi_maintenance_in *cdb; 7211 int retval; 7212 int alloc_len, ext, total_len = 0, g, p, pc, pg, gs, os; 7213 int num_target_port_groups, num_target_ports; 7214 struct ctl_lun *lun; 7215 struct ctl_softc *softc; 7216 struct ctl_port *port; 7217 struct scsi_target_group_data *rtg_ptr; 7218 struct scsi_target_group_data_extended *rtg_ext_ptr; 7219 struct scsi_target_port_group_descriptor *tpg_desc; 7220 7221 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7222 7223 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7224 softc = control_softc; 7225 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7226 7227 retval = CTL_RETVAL_COMPLETE; 7228 7229 switch (cdb->byte2 & STG_PDF_MASK) { 7230 case STG_PDF_LENGTH: 7231 ext = 0; 7232 break; 7233 case STG_PDF_EXTENDED: 7234 ext = 1; 7235 break; 7236 default: 7237 ctl_set_invalid_field(/*ctsio*/ ctsio, 7238 /*sks_valid*/ 1, 7239 /*command*/ 1, 7240 /*field*/ 2, 7241 /*bit_valid*/ 1, 7242 /*bit*/ 5); 7243 ctl_done((union ctl_io *)ctsio); 7244 return(retval); 7245 } 7246 7247 if (softc->is_single) 7248 num_target_port_groups = 1; 7249 else 7250 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7251 num_target_ports = 0; 7252 mtx_lock(&softc->ctl_lock); 7253 STAILQ_FOREACH(port, &softc->port_list, links) { 7254 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7255 continue; 7256 if (ctl_map_lun_back(port->targ_port, lun->lun) >= CTL_MAX_LUNS) 7257 continue; 7258 num_target_ports++; 7259 } 7260 mtx_unlock(&softc->ctl_lock); 7261 7262 if (ext) 7263 total_len = sizeof(struct scsi_target_group_data_extended); 7264 else 7265 total_len = sizeof(struct scsi_target_group_data); 7266 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7267 num_target_port_groups + 7268 sizeof(struct scsi_target_port_descriptor) * 7269 num_target_ports * num_target_port_groups; 7270 7271 alloc_len = scsi_4btoul(cdb->length); 7272 7273 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7274 7275 ctsio->kern_sg_entries = 0; 7276 7277 if (total_len < alloc_len) { 7278 ctsio->residual = alloc_len - total_len; 7279 ctsio->kern_data_len = total_len; 7280 ctsio->kern_total_len = total_len; 7281 } else { 7282 ctsio->residual = 0; 7283 ctsio->kern_data_len = alloc_len; 7284 ctsio->kern_total_len = alloc_len; 7285 } 7286 ctsio->kern_data_resid = 0; 7287 ctsio->kern_rel_offset = 0; 7288 7289 if (ext) { 7290 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7291 ctsio->kern_data_ptr; 7292 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7293 rtg_ext_ptr->format_type = 0x10; 7294 rtg_ext_ptr->implicit_transition_time = 0; 7295 tpg_desc = &rtg_ext_ptr->groups[0]; 7296 } else { 7297 rtg_ptr = (struct scsi_target_group_data *) 7298 ctsio->kern_data_ptr; 7299 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7300 tpg_desc = &rtg_ptr->groups[0]; 7301 } 7302 7303 mtx_lock(&softc->ctl_lock); 7304 pg = softc->port_offset / CTL_MAX_PORTS; 7305 if (softc->flags & CTL_FLAG_ACTIVE_SHELF) { 7306 if (softc->ha_mode == CTL_HA_MODE_ACT_STBY) { 7307 gs = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7308 os = TPG_ASYMMETRIC_ACCESS_STANDBY; 7309 } else if (lun->flags & CTL_LUN_PRIMARY_SC) { 7310 gs = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7311 os = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7312 } else { 7313 gs = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7314 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7315 } 7316 } else { 7317 gs = TPG_ASYMMETRIC_ACCESS_STANDBY; 7318 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7319 } 7320 for (g = 0; g < num_target_port_groups; g++) { 7321 tpg_desc->pref_state = (g == pg) ? gs : os; 7322 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP; 7323 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7324 tpg_desc->status = TPG_IMPLICIT; 7325 pc = 0; 7326 STAILQ_FOREACH(port, &softc->port_list, links) { 7327 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7328 continue; 7329 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 7330 CTL_MAX_LUNS) 7331 continue; 7332 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 7333 scsi_ulto2b(p, tpg_desc->descriptors[pc]. 7334 relative_target_port_identifier); 7335 pc++; 7336 } 7337 tpg_desc->target_port_count = pc; 7338 tpg_desc = (struct scsi_target_port_group_descriptor *) 7339 &tpg_desc->descriptors[pc]; 7340 } 7341 mtx_unlock(&softc->ctl_lock); 7342 7343 ctl_set_success(ctsio); 7344 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7345 ctsio->be_move_done = ctl_config_move_done; 7346 ctl_datamove((union ctl_io *)ctsio); 7347 return(retval); 7348} 7349 7350int 7351ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7352{ 7353 struct ctl_lun *lun; 7354 struct scsi_report_supported_opcodes *cdb; 7355 const struct ctl_cmd_entry *entry, *sentry; 7356 struct scsi_report_supported_opcodes_all *all; 7357 struct scsi_report_supported_opcodes_descr *descr; 7358 struct scsi_report_supported_opcodes_one *one; 7359 int retval; 7360 int alloc_len, total_len; 7361 int opcode, service_action, i, j, num; 7362 7363 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7364 7365 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7366 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7367 7368 retval = CTL_RETVAL_COMPLETE; 7369 7370 opcode = cdb->requested_opcode; 7371 service_action = scsi_2btoul(cdb->requested_service_action); 7372 switch (cdb->options & RSO_OPTIONS_MASK) { 7373 case RSO_OPTIONS_ALL: 7374 num = 0; 7375 for (i = 0; i < 256; i++) { 7376 entry = &ctl_cmd_table[i]; 7377 if (entry->flags & CTL_CMD_FLAG_SA5) { 7378 for (j = 0; j < 32; j++) { 7379 sentry = &((const struct ctl_cmd_entry *) 7380 entry->execute)[j]; 7381 if (ctl_cmd_applicable( 7382 lun->be_lun->lun_type, sentry)) 7383 num++; 7384 } 7385 } else { 7386 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7387 entry)) 7388 num++; 7389 } 7390 } 7391 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7392 num * sizeof(struct scsi_report_supported_opcodes_descr); 7393 break; 7394 case RSO_OPTIONS_OC: 7395 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7396 ctl_set_invalid_field(/*ctsio*/ ctsio, 7397 /*sks_valid*/ 1, 7398 /*command*/ 1, 7399 /*field*/ 2, 7400 /*bit_valid*/ 1, 7401 /*bit*/ 2); 7402 ctl_done((union ctl_io *)ctsio); 7403 return (CTL_RETVAL_COMPLETE); 7404 } 7405 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7406 break; 7407 case RSO_OPTIONS_OC_SA: 7408 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7409 service_action >= 32) { 7410 ctl_set_invalid_field(/*ctsio*/ ctsio, 7411 /*sks_valid*/ 1, 7412 /*command*/ 1, 7413 /*field*/ 2, 7414 /*bit_valid*/ 1, 7415 /*bit*/ 2); 7416 ctl_done((union ctl_io *)ctsio); 7417 return (CTL_RETVAL_COMPLETE); 7418 } 7419 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7420 break; 7421 default: 7422 ctl_set_invalid_field(/*ctsio*/ ctsio, 7423 /*sks_valid*/ 1, 7424 /*command*/ 1, 7425 /*field*/ 2, 7426 /*bit_valid*/ 1, 7427 /*bit*/ 2); 7428 ctl_done((union ctl_io *)ctsio); 7429 return (CTL_RETVAL_COMPLETE); 7430 } 7431 7432 alloc_len = scsi_4btoul(cdb->length); 7433 7434 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7435 7436 ctsio->kern_sg_entries = 0; 7437 7438 if (total_len < alloc_len) { 7439 ctsio->residual = alloc_len - total_len; 7440 ctsio->kern_data_len = total_len; 7441 ctsio->kern_total_len = total_len; 7442 } else { 7443 ctsio->residual = 0; 7444 ctsio->kern_data_len = alloc_len; 7445 ctsio->kern_total_len = alloc_len; 7446 } 7447 ctsio->kern_data_resid = 0; 7448 ctsio->kern_rel_offset = 0; 7449 7450 switch (cdb->options & RSO_OPTIONS_MASK) { 7451 case RSO_OPTIONS_ALL: 7452 all = (struct scsi_report_supported_opcodes_all *) 7453 ctsio->kern_data_ptr; 7454 num = 0; 7455 for (i = 0; i < 256; i++) { 7456 entry = &ctl_cmd_table[i]; 7457 if (entry->flags & CTL_CMD_FLAG_SA5) { 7458 for (j = 0; j < 32; j++) { 7459 sentry = &((const struct ctl_cmd_entry *) 7460 entry->execute)[j]; 7461 if (!ctl_cmd_applicable( 7462 lun->be_lun->lun_type, sentry)) 7463 continue; 7464 descr = &all->descr[num++]; 7465 descr->opcode = i; 7466 scsi_ulto2b(j, descr->service_action); 7467 descr->flags = RSO_SERVACTV; 7468 scsi_ulto2b(sentry->length, 7469 descr->cdb_length); 7470 } 7471 } else { 7472 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7473 entry)) 7474 continue; 7475 descr = &all->descr[num++]; 7476 descr->opcode = i; 7477 scsi_ulto2b(0, descr->service_action); 7478 descr->flags = 0; 7479 scsi_ulto2b(entry->length, descr->cdb_length); 7480 } 7481 } 7482 scsi_ulto4b( 7483 num * sizeof(struct scsi_report_supported_opcodes_descr), 7484 all->length); 7485 break; 7486 case RSO_OPTIONS_OC: 7487 one = (struct scsi_report_supported_opcodes_one *) 7488 ctsio->kern_data_ptr; 7489 entry = &ctl_cmd_table[opcode]; 7490 goto fill_one; 7491 case RSO_OPTIONS_OC_SA: 7492 one = (struct scsi_report_supported_opcodes_one *) 7493 ctsio->kern_data_ptr; 7494 entry = &ctl_cmd_table[opcode]; 7495 entry = &((const struct ctl_cmd_entry *) 7496 entry->execute)[service_action]; 7497fill_one: 7498 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7499 one->support = 3; 7500 scsi_ulto2b(entry->length, one->cdb_length); 7501 one->cdb_usage[0] = opcode; 7502 memcpy(&one->cdb_usage[1], entry->usage, 7503 entry->length - 1); 7504 } else 7505 one->support = 1; 7506 break; 7507 } 7508 7509 ctl_set_success(ctsio); 7510 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7511 ctsio->be_move_done = ctl_config_move_done; 7512 ctl_datamove((union ctl_io *)ctsio); 7513 return(retval); 7514} 7515 7516int 7517ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7518{ 7519 struct scsi_report_supported_tmf *cdb; 7520 struct scsi_report_supported_tmf_data *data; 7521 int retval; 7522 int alloc_len, total_len; 7523 7524 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7525 7526 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7527 7528 retval = CTL_RETVAL_COMPLETE; 7529 7530 total_len = sizeof(struct scsi_report_supported_tmf_data); 7531 alloc_len = scsi_4btoul(cdb->length); 7532 7533 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7534 7535 ctsio->kern_sg_entries = 0; 7536 7537 if (total_len < alloc_len) { 7538 ctsio->residual = alloc_len - total_len; 7539 ctsio->kern_data_len = total_len; 7540 ctsio->kern_total_len = total_len; 7541 } else { 7542 ctsio->residual = 0; 7543 ctsio->kern_data_len = alloc_len; 7544 ctsio->kern_total_len = alloc_len; 7545 } 7546 ctsio->kern_data_resid = 0; 7547 ctsio->kern_rel_offset = 0; 7548 7549 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7550 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_TRS; 7551 data->byte2 |= RST_ITNRS; 7552 7553 ctl_set_success(ctsio); 7554 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7555 ctsio->be_move_done = ctl_config_move_done; 7556 ctl_datamove((union ctl_io *)ctsio); 7557 return (retval); 7558} 7559 7560int 7561ctl_report_timestamp(struct ctl_scsiio *ctsio) 7562{ 7563 struct scsi_report_timestamp *cdb; 7564 struct scsi_report_timestamp_data *data; 7565 struct timeval tv; 7566 int64_t timestamp; 7567 int retval; 7568 int alloc_len, total_len; 7569 7570 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7571 7572 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7573 7574 retval = CTL_RETVAL_COMPLETE; 7575 7576 total_len = sizeof(struct scsi_report_timestamp_data); 7577 alloc_len = scsi_4btoul(cdb->length); 7578 7579 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7580 7581 ctsio->kern_sg_entries = 0; 7582 7583 if (total_len < alloc_len) { 7584 ctsio->residual = alloc_len - total_len; 7585 ctsio->kern_data_len = total_len; 7586 ctsio->kern_total_len = total_len; 7587 } else { 7588 ctsio->residual = 0; 7589 ctsio->kern_data_len = alloc_len; 7590 ctsio->kern_total_len = alloc_len; 7591 } 7592 ctsio->kern_data_resid = 0; 7593 ctsio->kern_rel_offset = 0; 7594 7595 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7596 scsi_ulto2b(sizeof(*data) - 2, data->length); 7597 data->origin = RTS_ORIG_OUTSIDE; 7598 getmicrotime(&tv); 7599 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7600 scsi_ulto4b(timestamp >> 16, data->timestamp); 7601 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7602 7603 ctl_set_success(ctsio); 7604 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7605 ctsio->be_move_done = ctl_config_move_done; 7606 ctl_datamove((union ctl_io *)ctsio); 7607 return (retval); 7608} 7609 7610int 7611ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7612{ 7613 struct scsi_per_res_in *cdb; 7614 int alloc_len, total_len = 0; 7615 /* struct scsi_per_res_in_rsrv in_data; */ 7616 struct ctl_lun *lun; 7617 struct ctl_softc *softc; 7618 7619 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7620 7621 softc = control_softc; 7622 7623 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7624 7625 alloc_len = scsi_2btoul(cdb->length); 7626 7627 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7628 7629retry: 7630 mtx_lock(&lun->lun_lock); 7631 switch (cdb->action) { 7632 case SPRI_RK: /* read keys */ 7633 total_len = sizeof(struct scsi_per_res_in_keys) + 7634 lun->pr_key_count * 7635 sizeof(struct scsi_per_res_key); 7636 break; 7637 case SPRI_RR: /* read reservation */ 7638 if (lun->flags & CTL_LUN_PR_RESERVED) 7639 total_len = sizeof(struct scsi_per_res_in_rsrv); 7640 else 7641 total_len = sizeof(struct scsi_per_res_in_header); 7642 break; 7643 case SPRI_RC: /* report capabilities */ 7644 total_len = sizeof(struct scsi_per_res_cap); 7645 break; 7646 case SPRI_RS: /* read full status */ 7647 total_len = sizeof(struct scsi_per_res_in_header) + 7648 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7649 lun->pr_key_count; 7650 break; 7651 default: 7652 panic("Invalid PR type %x", cdb->action); 7653 } 7654 mtx_unlock(&lun->lun_lock); 7655 7656 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7657 7658 if (total_len < alloc_len) { 7659 ctsio->residual = alloc_len - total_len; 7660 ctsio->kern_data_len = total_len; 7661 ctsio->kern_total_len = total_len; 7662 } else { 7663 ctsio->residual = 0; 7664 ctsio->kern_data_len = alloc_len; 7665 ctsio->kern_total_len = alloc_len; 7666 } 7667 7668 ctsio->kern_data_resid = 0; 7669 ctsio->kern_rel_offset = 0; 7670 ctsio->kern_sg_entries = 0; 7671 7672 mtx_lock(&lun->lun_lock); 7673 switch (cdb->action) { 7674 case SPRI_RK: { // read keys 7675 struct scsi_per_res_in_keys *res_keys; 7676 int i, key_count; 7677 7678 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7679 7680 /* 7681 * We had to drop the lock to allocate our buffer, which 7682 * leaves time for someone to come in with another 7683 * persistent reservation. (That is unlikely, though, 7684 * since this should be the only persistent reservation 7685 * command active right now.) 7686 */ 7687 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7688 (lun->pr_key_count * 7689 sizeof(struct scsi_per_res_key)))){ 7690 mtx_unlock(&lun->lun_lock); 7691 free(ctsio->kern_data_ptr, M_CTL); 7692 printf("%s: reservation length changed, retrying\n", 7693 __func__); 7694 goto retry; 7695 } 7696 7697 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7698 7699 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7700 lun->pr_key_count, res_keys->header.length); 7701 7702 for (i = 0, key_count = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7703 if (lun->pr_keys[i] == 0) 7704 continue; 7705 7706 /* 7707 * We used lun->pr_key_count to calculate the 7708 * size to allocate. If it turns out the number of 7709 * initiators with the registered flag set is 7710 * larger than that (i.e. they haven't been kept in 7711 * sync), we've got a problem. 7712 */ 7713 if (key_count >= lun->pr_key_count) { 7714#ifdef NEEDTOPORT 7715 csevent_log(CSC_CTL | CSC_SHELF_SW | 7716 CTL_PR_ERROR, 7717 csevent_LogType_Fault, 7718 csevent_AlertLevel_Yellow, 7719 csevent_FRU_ShelfController, 7720 csevent_FRU_Firmware, 7721 csevent_FRU_Unknown, 7722 "registered keys %d >= key " 7723 "count %d", key_count, 7724 lun->pr_key_count); 7725#endif 7726 key_count++; 7727 continue; 7728 } 7729 scsi_u64to8b(lun->pr_keys[i], 7730 res_keys->keys[key_count].key); 7731 key_count++; 7732 } 7733 break; 7734 } 7735 case SPRI_RR: { // read reservation 7736 struct scsi_per_res_in_rsrv *res; 7737 int tmp_len, header_only; 7738 7739 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7740 7741 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7742 7743 if (lun->flags & CTL_LUN_PR_RESERVED) 7744 { 7745 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7746 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7747 res->header.length); 7748 header_only = 0; 7749 } else { 7750 tmp_len = sizeof(struct scsi_per_res_in_header); 7751 scsi_ulto4b(0, res->header.length); 7752 header_only = 1; 7753 } 7754 7755 /* 7756 * We had to drop the lock to allocate our buffer, which 7757 * leaves time for someone to come in with another 7758 * persistent reservation. (That is unlikely, though, 7759 * since this should be the only persistent reservation 7760 * command active right now.) 7761 */ 7762 if (tmp_len != total_len) { 7763 mtx_unlock(&lun->lun_lock); 7764 free(ctsio->kern_data_ptr, M_CTL); 7765 printf("%s: reservation status changed, retrying\n", 7766 __func__); 7767 goto retry; 7768 } 7769 7770 /* 7771 * No reservation held, so we're done. 7772 */ 7773 if (header_only != 0) 7774 break; 7775 7776 /* 7777 * If the registration is an All Registrants type, the key 7778 * is 0, since it doesn't really matter. 7779 */ 7780 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7781 scsi_u64to8b(lun->pr_keys[lun->pr_res_idx], 7782 res->data.reservation); 7783 } 7784 res->data.scopetype = lun->res_type; 7785 break; 7786 } 7787 case SPRI_RC: //report capabilities 7788 { 7789 struct scsi_per_res_cap *res_cap; 7790 uint16_t type_mask; 7791 7792 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7793 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7794 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_5; 7795 type_mask = SPRI_TM_WR_EX_AR | 7796 SPRI_TM_EX_AC_RO | 7797 SPRI_TM_WR_EX_RO | 7798 SPRI_TM_EX_AC | 7799 SPRI_TM_WR_EX | 7800 SPRI_TM_EX_AC_AR; 7801 scsi_ulto2b(type_mask, res_cap->type_mask); 7802 break; 7803 } 7804 case SPRI_RS: { // read full status 7805 struct scsi_per_res_in_full *res_status; 7806 struct scsi_per_res_in_full_desc *res_desc; 7807 struct ctl_port *port; 7808 int i, len; 7809 7810 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7811 7812 /* 7813 * We had to drop the lock to allocate our buffer, which 7814 * leaves time for someone to come in with another 7815 * persistent reservation. (That is unlikely, though, 7816 * since this should be the only persistent reservation 7817 * command active right now.) 7818 */ 7819 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7820 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7821 lun->pr_key_count)){ 7822 mtx_unlock(&lun->lun_lock); 7823 free(ctsio->kern_data_ptr, M_CTL); 7824 printf("%s: reservation length changed, retrying\n", 7825 __func__); 7826 goto retry; 7827 } 7828 7829 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 7830 7831 res_desc = &res_status->desc[0]; 7832 for (i = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7833 if (lun->pr_keys[i] == 0) 7834 continue; 7835 7836 scsi_u64to8b(lun->pr_keys[i], res_desc->res_key.key); 7837 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7838 (lun->pr_res_idx == i || 7839 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7840 res_desc->flags = SPRI_FULL_R_HOLDER; 7841 res_desc->scopetype = lun->res_type; 7842 } 7843 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7844 res_desc->rel_trgt_port_id); 7845 len = 0; 7846 port = softc->ctl_ports[ 7847 ctl_port_idx(i / CTL_MAX_INIT_PER_PORT)]; 7848 if (port != NULL) 7849 len = ctl_create_iid(port, 7850 i % CTL_MAX_INIT_PER_PORT, 7851 res_desc->transport_id); 7852 scsi_ulto4b(len, res_desc->additional_length); 7853 res_desc = (struct scsi_per_res_in_full_desc *) 7854 &res_desc->transport_id[len]; 7855 } 7856 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7857 res_status->header.length); 7858 break; 7859 } 7860 default: 7861 /* 7862 * This is a bug, because we just checked for this above, 7863 * and should have returned an error. 7864 */ 7865 panic("Invalid PR type %x", cdb->action); 7866 break; /* NOTREACHED */ 7867 } 7868 mtx_unlock(&lun->lun_lock); 7869 7870 ctl_set_success(ctsio); 7871 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7872 ctsio->be_move_done = ctl_config_move_done; 7873 ctl_datamove((union ctl_io *)ctsio); 7874 return (CTL_RETVAL_COMPLETE); 7875} 7876 7877static void 7878ctl_set_res_ua(struct ctl_lun *lun, uint32_t residx, ctl_ua_type ua) 7879{ 7880 int off = lun->ctl_softc->persis_offset; 7881 7882 if (residx >= off && residx < off + CTL_MAX_INITIATORS) 7883 lun->pending_ua[residx - off] |= ua; 7884} 7885 7886/* 7887 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7888 * it should return. 7889 */ 7890static int 7891ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7892 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7893 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7894 struct scsi_per_res_out_parms* param) 7895{ 7896 union ctl_ha_msg persis_io; 7897 int retval, i; 7898 int isc_retval; 7899 7900 retval = 0; 7901 7902 mtx_lock(&lun->lun_lock); 7903 if (sa_res_key == 0) { 7904 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7905 /* validate scope and type */ 7906 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7907 SPR_LU_SCOPE) { 7908 mtx_unlock(&lun->lun_lock); 7909 ctl_set_invalid_field(/*ctsio*/ ctsio, 7910 /*sks_valid*/ 1, 7911 /*command*/ 1, 7912 /*field*/ 2, 7913 /*bit_valid*/ 1, 7914 /*bit*/ 4); 7915 ctl_done((union ctl_io *)ctsio); 7916 return (1); 7917 } 7918 7919 if (type>8 || type==2 || type==4 || type==0) { 7920 mtx_unlock(&lun->lun_lock); 7921 ctl_set_invalid_field(/*ctsio*/ ctsio, 7922 /*sks_valid*/ 1, 7923 /*command*/ 1, 7924 /*field*/ 2, 7925 /*bit_valid*/ 1, 7926 /*bit*/ 0); 7927 ctl_done((union ctl_io *)ctsio); 7928 return (1); 7929 } 7930 7931 /* 7932 * Unregister everybody else and build UA for 7933 * them 7934 */ 7935 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 7936 if (i == residx || lun->pr_keys[i] == 0) 7937 continue; 7938 7939 lun->pr_keys[i] = 0; 7940 ctl_set_res_ua(lun, i, CTL_UA_REG_PREEMPT); 7941 } 7942 lun->pr_key_count = 1; 7943 lun->res_type = type; 7944 if (lun->res_type != SPR_TYPE_WR_EX_AR 7945 && lun->res_type != SPR_TYPE_EX_AC_AR) 7946 lun->pr_res_idx = residx; 7947 7948 /* send msg to other side */ 7949 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7950 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7951 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7952 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7953 persis_io.pr.pr_info.res_type = type; 7954 memcpy(persis_io.pr.pr_info.sa_res_key, 7955 param->serv_act_res_key, 7956 sizeof(param->serv_act_res_key)); 7957 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 7958 &persis_io, sizeof(persis_io), 0)) > 7959 CTL_HA_STATUS_SUCCESS) { 7960 printf("CTL:Persis Out error returned " 7961 "from ctl_ha_msg_send %d\n", 7962 isc_retval); 7963 } 7964 } else { 7965 /* not all registrants */ 7966 mtx_unlock(&lun->lun_lock); 7967 free(ctsio->kern_data_ptr, M_CTL); 7968 ctl_set_invalid_field(ctsio, 7969 /*sks_valid*/ 1, 7970 /*command*/ 0, 7971 /*field*/ 8, 7972 /*bit_valid*/ 0, 7973 /*bit*/ 0); 7974 ctl_done((union ctl_io *)ctsio); 7975 return (1); 7976 } 7977 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 7978 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 7979 int found = 0; 7980 7981 if (res_key == sa_res_key) { 7982 /* special case */ 7983 /* 7984 * The spec implies this is not good but doesn't 7985 * say what to do. There are two choices either 7986 * generate a res conflict or check condition 7987 * with illegal field in parameter data. Since 7988 * that is what is done when the sa_res_key is 7989 * zero I'll take that approach since this has 7990 * to do with the sa_res_key. 7991 */ 7992 mtx_unlock(&lun->lun_lock); 7993 free(ctsio->kern_data_ptr, M_CTL); 7994 ctl_set_invalid_field(ctsio, 7995 /*sks_valid*/ 1, 7996 /*command*/ 0, 7997 /*field*/ 8, 7998 /*bit_valid*/ 0, 7999 /*bit*/ 0); 8000 ctl_done((union ctl_io *)ctsio); 8001 return (1); 8002 } 8003 8004 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8005 if (lun->pr_keys[i] != sa_res_key) 8006 continue; 8007 8008 found = 1; 8009 lun->pr_keys[i] = 0; 8010 lun->pr_key_count--; 8011 ctl_set_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8012 } 8013 if (!found) { 8014 mtx_unlock(&lun->lun_lock); 8015 free(ctsio->kern_data_ptr, M_CTL); 8016 ctl_set_reservation_conflict(ctsio); 8017 ctl_done((union ctl_io *)ctsio); 8018 return (CTL_RETVAL_COMPLETE); 8019 } 8020 /* send msg to other side */ 8021 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8022 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8023 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8024 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8025 persis_io.pr.pr_info.res_type = type; 8026 memcpy(persis_io.pr.pr_info.sa_res_key, 8027 param->serv_act_res_key, 8028 sizeof(param->serv_act_res_key)); 8029 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8030 &persis_io, sizeof(persis_io), 0)) > 8031 CTL_HA_STATUS_SUCCESS) { 8032 printf("CTL:Persis Out error returned from " 8033 "ctl_ha_msg_send %d\n", isc_retval); 8034 } 8035 } else { 8036 /* Reserved but not all registrants */ 8037 /* sa_res_key is res holder */ 8038 if (sa_res_key == lun->pr_keys[lun->pr_res_idx]) { 8039 /* validate scope and type */ 8040 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8041 SPR_LU_SCOPE) { 8042 mtx_unlock(&lun->lun_lock); 8043 ctl_set_invalid_field(/*ctsio*/ ctsio, 8044 /*sks_valid*/ 1, 8045 /*command*/ 1, 8046 /*field*/ 2, 8047 /*bit_valid*/ 1, 8048 /*bit*/ 4); 8049 ctl_done((union ctl_io *)ctsio); 8050 return (1); 8051 } 8052 8053 if (type>8 || type==2 || type==4 || type==0) { 8054 mtx_unlock(&lun->lun_lock); 8055 ctl_set_invalid_field(/*ctsio*/ ctsio, 8056 /*sks_valid*/ 1, 8057 /*command*/ 1, 8058 /*field*/ 2, 8059 /*bit_valid*/ 1, 8060 /*bit*/ 0); 8061 ctl_done((union ctl_io *)ctsio); 8062 return (1); 8063 } 8064 8065 /* 8066 * Do the following: 8067 * if sa_res_key != res_key remove all 8068 * registrants w/sa_res_key and generate UA 8069 * for these registrants(Registrations 8070 * Preempted) if it wasn't an exclusive 8071 * reservation generate UA(Reservations 8072 * Preempted) for all other registered nexuses 8073 * if the type has changed. Establish the new 8074 * reservation and holder. If res_key and 8075 * sa_res_key are the same do the above 8076 * except don't unregister the res holder. 8077 */ 8078 8079 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8080 if (i == residx || lun->pr_keys[i] == 0) 8081 continue; 8082 8083 if (sa_res_key == lun->pr_keys[i]) { 8084 lun->pr_keys[i] = 0; 8085 lun->pr_key_count--; 8086 ctl_set_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8087 } else if (type != lun->res_type 8088 && (lun->res_type == SPR_TYPE_WR_EX_RO 8089 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 8090 ctl_set_res_ua(lun, i, CTL_UA_RES_RELEASE); 8091 } 8092 } 8093 lun->res_type = type; 8094 if (lun->res_type != SPR_TYPE_WR_EX_AR 8095 && lun->res_type != SPR_TYPE_EX_AC_AR) 8096 lun->pr_res_idx = residx; 8097 else 8098 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8099 8100 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8101 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8102 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8103 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8104 persis_io.pr.pr_info.res_type = type; 8105 memcpy(persis_io.pr.pr_info.sa_res_key, 8106 param->serv_act_res_key, 8107 sizeof(param->serv_act_res_key)); 8108 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8109 &persis_io, sizeof(persis_io), 0)) > 8110 CTL_HA_STATUS_SUCCESS) { 8111 printf("CTL:Persis Out error returned " 8112 "from ctl_ha_msg_send %d\n", 8113 isc_retval); 8114 } 8115 } else { 8116 /* 8117 * sa_res_key is not the res holder just 8118 * remove registrants 8119 */ 8120 int found=0; 8121 8122 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8123 if (sa_res_key != lun->pr_keys[i]) 8124 continue; 8125 8126 found = 1; 8127 lun->pr_keys[i] = 0; 8128 lun->pr_key_count--; 8129 ctl_set_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8130 } 8131 8132 if (!found) { 8133 mtx_unlock(&lun->lun_lock); 8134 free(ctsio->kern_data_ptr, M_CTL); 8135 ctl_set_reservation_conflict(ctsio); 8136 ctl_done((union ctl_io *)ctsio); 8137 return (1); 8138 } 8139 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8140 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8141 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8142 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8143 persis_io.pr.pr_info.res_type = type; 8144 memcpy(persis_io.pr.pr_info.sa_res_key, 8145 param->serv_act_res_key, 8146 sizeof(param->serv_act_res_key)); 8147 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8148 &persis_io, sizeof(persis_io), 0)) > 8149 CTL_HA_STATUS_SUCCESS) { 8150 printf("CTL:Persis Out error returned " 8151 "from ctl_ha_msg_send %d\n", 8152 isc_retval); 8153 } 8154 } 8155 } 8156 8157 lun->PRGeneration++; 8158 mtx_unlock(&lun->lun_lock); 8159 8160 return (retval); 8161} 8162 8163static void 8164ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8165{ 8166 uint64_t sa_res_key; 8167 int i; 8168 8169 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8170 8171 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8172 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8173 || sa_res_key != lun->pr_keys[lun->pr_res_idx]) { 8174 if (sa_res_key == 0) { 8175 /* 8176 * Unregister everybody else and build UA for 8177 * them 8178 */ 8179 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8180 if (i == msg->pr.pr_info.residx || 8181 lun->pr_keys[i] == 0) 8182 continue; 8183 8184 lun->pr_keys[i] = 0; 8185 ctl_set_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8186 } 8187 8188 lun->pr_key_count = 1; 8189 lun->res_type = msg->pr.pr_info.res_type; 8190 if (lun->res_type != SPR_TYPE_WR_EX_AR 8191 && lun->res_type != SPR_TYPE_EX_AC_AR) 8192 lun->pr_res_idx = msg->pr.pr_info.residx; 8193 } else { 8194 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8195 if (sa_res_key == lun->pr_keys[i]) 8196 continue; 8197 8198 lun->pr_keys[i] = 0; 8199 lun->pr_key_count--; 8200 ctl_set_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8201 } 8202 } 8203 } else { 8204 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8205 if (i == msg->pr.pr_info.residx || 8206 lun->pr_keys[i] == 0) 8207 continue; 8208 8209 if (sa_res_key == lun->pr_keys[i]) { 8210 lun->pr_keys[i] = 0; 8211 lun->pr_key_count--; 8212 ctl_set_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8213 } else if (msg->pr.pr_info.res_type != lun->res_type 8214 && (lun->res_type == SPR_TYPE_WR_EX_RO 8215 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8216 ctl_set_res_ua(lun, i, CTL_UA_RES_RELEASE); 8217 } 8218 } 8219 lun->res_type = msg->pr.pr_info.res_type; 8220 if (lun->res_type != SPR_TYPE_WR_EX_AR 8221 && lun->res_type != SPR_TYPE_EX_AC_AR) 8222 lun->pr_res_idx = msg->pr.pr_info.residx; 8223 else 8224 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8225 } 8226 lun->PRGeneration++; 8227 8228} 8229 8230 8231int 8232ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8233{ 8234 int retval; 8235 int isc_retval; 8236 u_int32_t param_len; 8237 struct scsi_per_res_out *cdb; 8238 struct ctl_lun *lun; 8239 struct scsi_per_res_out_parms* param; 8240 struct ctl_softc *softc; 8241 uint32_t residx; 8242 uint64_t res_key, sa_res_key; 8243 uint8_t type; 8244 union ctl_ha_msg persis_io; 8245 int i; 8246 8247 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8248 8249 retval = CTL_RETVAL_COMPLETE; 8250 8251 softc = control_softc; 8252 8253 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8254 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8255 8256 /* 8257 * We only support whole-LUN scope. The scope & type are ignored for 8258 * register, register and ignore existing key and clear. 8259 * We sometimes ignore scope and type on preempts too!! 8260 * Verify reservation type here as well. 8261 */ 8262 type = cdb->scope_type & SPR_TYPE_MASK; 8263 if ((cdb->action == SPRO_RESERVE) 8264 || (cdb->action == SPRO_RELEASE)) { 8265 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8266 ctl_set_invalid_field(/*ctsio*/ ctsio, 8267 /*sks_valid*/ 1, 8268 /*command*/ 1, 8269 /*field*/ 2, 8270 /*bit_valid*/ 1, 8271 /*bit*/ 4); 8272 ctl_done((union ctl_io *)ctsio); 8273 return (CTL_RETVAL_COMPLETE); 8274 } 8275 8276 if (type>8 || type==2 || type==4 || type==0) { 8277 ctl_set_invalid_field(/*ctsio*/ ctsio, 8278 /*sks_valid*/ 1, 8279 /*command*/ 1, 8280 /*field*/ 2, 8281 /*bit_valid*/ 1, 8282 /*bit*/ 0); 8283 ctl_done((union ctl_io *)ctsio); 8284 return (CTL_RETVAL_COMPLETE); 8285 } 8286 } 8287 8288 param_len = scsi_4btoul(cdb->length); 8289 8290 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8291 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8292 ctsio->kern_data_len = param_len; 8293 ctsio->kern_total_len = param_len; 8294 ctsio->kern_data_resid = 0; 8295 ctsio->kern_rel_offset = 0; 8296 ctsio->kern_sg_entries = 0; 8297 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8298 ctsio->be_move_done = ctl_config_move_done; 8299 ctl_datamove((union ctl_io *)ctsio); 8300 8301 return (CTL_RETVAL_COMPLETE); 8302 } 8303 8304 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8305 8306 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8307 res_key = scsi_8btou64(param->res_key.key); 8308 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8309 8310 /* 8311 * Validate the reservation key here except for SPRO_REG_IGNO 8312 * This must be done for all other service actions 8313 */ 8314 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8315 mtx_lock(&lun->lun_lock); 8316 if (lun->pr_keys[residx] != 0) { 8317 if (res_key != lun->pr_keys[residx]) { 8318 /* 8319 * The current key passed in doesn't match 8320 * the one the initiator previously 8321 * registered. 8322 */ 8323 mtx_unlock(&lun->lun_lock); 8324 free(ctsio->kern_data_ptr, M_CTL); 8325 ctl_set_reservation_conflict(ctsio); 8326 ctl_done((union ctl_io *)ctsio); 8327 return (CTL_RETVAL_COMPLETE); 8328 } 8329 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8330 /* 8331 * We are not registered 8332 */ 8333 mtx_unlock(&lun->lun_lock); 8334 free(ctsio->kern_data_ptr, M_CTL); 8335 ctl_set_reservation_conflict(ctsio); 8336 ctl_done((union ctl_io *)ctsio); 8337 return (CTL_RETVAL_COMPLETE); 8338 } else if (res_key != 0) { 8339 /* 8340 * We are not registered and trying to register but 8341 * the register key isn't zero. 8342 */ 8343 mtx_unlock(&lun->lun_lock); 8344 free(ctsio->kern_data_ptr, M_CTL); 8345 ctl_set_reservation_conflict(ctsio); 8346 ctl_done((union ctl_io *)ctsio); 8347 return (CTL_RETVAL_COMPLETE); 8348 } 8349 mtx_unlock(&lun->lun_lock); 8350 } 8351 8352 switch (cdb->action & SPRO_ACTION_MASK) { 8353 case SPRO_REGISTER: 8354 case SPRO_REG_IGNO: { 8355 8356#if 0 8357 printf("Registration received\n"); 8358#endif 8359 8360 /* 8361 * We don't support any of these options, as we report in 8362 * the read capabilities request (see 8363 * ctl_persistent_reserve_in(), above). 8364 */ 8365 if ((param->flags & SPR_SPEC_I_PT) 8366 || (param->flags & SPR_ALL_TG_PT) 8367 || (param->flags & SPR_APTPL)) { 8368 int bit_ptr; 8369 8370 if (param->flags & SPR_APTPL) 8371 bit_ptr = 0; 8372 else if (param->flags & SPR_ALL_TG_PT) 8373 bit_ptr = 2; 8374 else /* SPR_SPEC_I_PT */ 8375 bit_ptr = 3; 8376 8377 free(ctsio->kern_data_ptr, M_CTL); 8378 ctl_set_invalid_field(ctsio, 8379 /*sks_valid*/ 1, 8380 /*command*/ 0, 8381 /*field*/ 20, 8382 /*bit_valid*/ 1, 8383 /*bit*/ bit_ptr); 8384 ctl_done((union ctl_io *)ctsio); 8385 return (CTL_RETVAL_COMPLETE); 8386 } 8387 8388 mtx_lock(&lun->lun_lock); 8389 8390 /* 8391 * The initiator wants to clear the 8392 * key/unregister. 8393 */ 8394 if (sa_res_key == 0) { 8395 if ((res_key == 0 8396 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8397 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8398 && lun->pr_keys[residx] == 0)) { 8399 mtx_unlock(&lun->lun_lock); 8400 goto done; 8401 } 8402 8403 lun->pr_keys[residx] = 0; 8404 lun->pr_key_count--; 8405 8406 if (residx == lun->pr_res_idx) { 8407 lun->flags &= ~CTL_LUN_PR_RESERVED; 8408 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8409 8410 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8411 || lun->res_type == SPR_TYPE_EX_AC_RO) 8412 && lun->pr_key_count) { 8413 /* 8414 * If the reservation is a registrants 8415 * only type we need to generate a UA 8416 * for other registered inits. The 8417 * sense code should be RESERVATIONS 8418 * RELEASED 8419 */ 8420 8421 for (i = 0; i < CTL_MAX_INITIATORS;i++){ 8422 if (lun->pr_keys[i + 8423 softc->persis_offset] == 0) 8424 continue; 8425 lun->pending_ua[i] |= 8426 CTL_UA_RES_RELEASE; 8427 } 8428 } 8429 lun->res_type = 0; 8430 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8431 if (lun->pr_key_count==0) { 8432 lun->flags &= ~CTL_LUN_PR_RESERVED; 8433 lun->res_type = 0; 8434 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8435 } 8436 } 8437 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8438 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8439 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8440 persis_io.pr.pr_info.residx = residx; 8441 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8442 &persis_io, sizeof(persis_io), 0 )) > 8443 CTL_HA_STATUS_SUCCESS) { 8444 printf("CTL:Persis Out error returned from " 8445 "ctl_ha_msg_send %d\n", isc_retval); 8446 } 8447 } else /* sa_res_key != 0 */ { 8448 8449 /* 8450 * If we aren't registered currently then increment 8451 * the key count and set the registered flag. 8452 */ 8453 if (lun->pr_keys[residx] == 0) 8454 lun->pr_key_count++; 8455 lun->pr_keys[residx] = sa_res_key; 8456 8457 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8458 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8459 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8460 persis_io.pr.pr_info.residx = residx; 8461 memcpy(persis_io.pr.pr_info.sa_res_key, 8462 param->serv_act_res_key, 8463 sizeof(param->serv_act_res_key)); 8464 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8465 &persis_io, sizeof(persis_io), 0)) > 8466 CTL_HA_STATUS_SUCCESS) { 8467 printf("CTL:Persis Out error returned from " 8468 "ctl_ha_msg_send %d\n", isc_retval); 8469 } 8470 } 8471 lun->PRGeneration++; 8472 mtx_unlock(&lun->lun_lock); 8473 8474 break; 8475 } 8476 case SPRO_RESERVE: 8477#if 0 8478 printf("Reserve executed type %d\n", type); 8479#endif 8480 mtx_lock(&lun->lun_lock); 8481 if (lun->flags & CTL_LUN_PR_RESERVED) { 8482 /* 8483 * if this isn't the reservation holder and it's 8484 * not a "all registrants" type or if the type is 8485 * different then we have a conflict 8486 */ 8487 if ((lun->pr_res_idx != residx 8488 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8489 || lun->res_type != type) { 8490 mtx_unlock(&lun->lun_lock); 8491 free(ctsio->kern_data_ptr, M_CTL); 8492 ctl_set_reservation_conflict(ctsio); 8493 ctl_done((union ctl_io *)ctsio); 8494 return (CTL_RETVAL_COMPLETE); 8495 } 8496 mtx_unlock(&lun->lun_lock); 8497 } else /* create a reservation */ { 8498 /* 8499 * If it's not an "all registrants" type record 8500 * reservation holder 8501 */ 8502 if (type != SPR_TYPE_WR_EX_AR 8503 && type != SPR_TYPE_EX_AC_AR) 8504 lun->pr_res_idx = residx; /* Res holder */ 8505 else 8506 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8507 8508 lun->flags |= CTL_LUN_PR_RESERVED; 8509 lun->res_type = type; 8510 8511 mtx_unlock(&lun->lun_lock); 8512 8513 /* send msg to other side */ 8514 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8515 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8516 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8517 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8518 persis_io.pr.pr_info.res_type = type; 8519 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8520 &persis_io, sizeof(persis_io), 0)) > 8521 CTL_HA_STATUS_SUCCESS) { 8522 printf("CTL:Persis Out error returned from " 8523 "ctl_ha_msg_send %d\n", isc_retval); 8524 } 8525 } 8526 break; 8527 8528 case SPRO_RELEASE: 8529 mtx_lock(&lun->lun_lock); 8530 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8531 /* No reservation exists return good status */ 8532 mtx_unlock(&lun->lun_lock); 8533 goto done; 8534 } 8535 /* 8536 * Is this nexus a reservation holder? 8537 */ 8538 if (lun->pr_res_idx != residx 8539 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8540 /* 8541 * not a res holder return good status but 8542 * do nothing 8543 */ 8544 mtx_unlock(&lun->lun_lock); 8545 goto done; 8546 } 8547 8548 if (lun->res_type != type) { 8549 mtx_unlock(&lun->lun_lock); 8550 free(ctsio->kern_data_ptr, M_CTL); 8551 ctl_set_illegal_pr_release(ctsio); 8552 ctl_done((union ctl_io *)ctsio); 8553 return (CTL_RETVAL_COMPLETE); 8554 } 8555 8556 /* okay to release */ 8557 lun->flags &= ~CTL_LUN_PR_RESERVED; 8558 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8559 lun->res_type = 0; 8560 8561 /* 8562 * if this isn't an exclusive access 8563 * res generate UA for all other 8564 * registrants. 8565 */ 8566 if (type != SPR_TYPE_EX_AC 8567 && type != SPR_TYPE_WR_EX) { 8568 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8569 if (i == residx || 8570 lun->pr_keys[i + softc->persis_offset] == 0) 8571 continue; 8572 lun->pending_ua[i] |= CTL_UA_RES_RELEASE; 8573 } 8574 } 8575 mtx_unlock(&lun->lun_lock); 8576 /* Send msg to other side */ 8577 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8578 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8579 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8580 if ((isc_retval=ctl_ha_msg_send( CTL_HA_CHAN_CTL, &persis_io, 8581 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8582 printf("CTL:Persis Out error returned from " 8583 "ctl_ha_msg_send %d\n", isc_retval); 8584 } 8585 break; 8586 8587 case SPRO_CLEAR: 8588 /* send msg to other side */ 8589 8590 mtx_lock(&lun->lun_lock); 8591 lun->flags &= ~CTL_LUN_PR_RESERVED; 8592 lun->res_type = 0; 8593 lun->pr_key_count = 0; 8594 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8595 8596 lun->pr_keys[residx] = 0; 8597 8598 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) 8599 if (lun->pr_keys[i] != 0) { 8600 lun->pr_keys[i] = 0; 8601 ctl_set_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8602 } 8603 lun->PRGeneration++; 8604 mtx_unlock(&lun->lun_lock); 8605 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8606 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8607 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8608 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8609 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8610 printf("CTL:Persis Out error returned from " 8611 "ctl_ha_msg_send %d\n", isc_retval); 8612 } 8613 break; 8614 8615 case SPRO_PREEMPT: 8616 case SPRO_PRE_ABO: { 8617 int nretval; 8618 8619 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8620 residx, ctsio, cdb, param); 8621 if (nretval != 0) 8622 return (CTL_RETVAL_COMPLETE); 8623 break; 8624 } 8625 default: 8626 panic("Invalid PR type %x", cdb->action); 8627 } 8628 8629done: 8630 free(ctsio->kern_data_ptr, M_CTL); 8631 ctl_set_success(ctsio); 8632 ctl_done((union ctl_io *)ctsio); 8633 8634 return (retval); 8635} 8636 8637/* 8638 * This routine is for handling a message from the other SC pertaining to 8639 * persistent reserve out. All the error checking will have been done 8640 * so only perorming the action need be done here to keep the two 8641 * in sync. 8642 */ 8643static void 8644ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8645{ 8646 struct ctl_lun *lun; 8647 struct ctl_softc *softc; 8648 int i; 8649 uint32_t targ_lun; 8650 8651 softc = control_softc; 8652 8653 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8654 lun = softc->ctl_luns[targ_lun]; 8655 mtx_lock(&lun->lun_lock); 8656 switch(msg->pr.pr_info.action) { 8657 case CTL_PR_REG_KEY: 8658 if (lun->pr_keys[msg->pr.pr_info.residx] == 0) 8659 lun->pr_key_count++; 8660 lun->pr_keys[msg->pr.pr_info.residx] = 8661 scsi_8btou64(msg->pr.pr_info.sa_res_key); 8662 lun->PRGeneration++; 8663 break; 8664 8665 case CTL_PR_UNREG_KEY: 8666 lun->pr_keys[msg->pr.pr_info.residx] = 0; 8667 lun->pr_key_count--; 8668 8669 /* XXX Need to see if the reservation has been released */ 8670 /* if so do we need to generate UA? */ 8671 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8672 lun->flags &= ~CTL_LUN_PR_RESERVED; 8673 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8674 8675 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8676 || lun->res_type == SPR_TYPE_EX_AC_RO) 8677 && lun->pr_key_count) { 8678 /* 8679 * If the reservation is a registrants 8680 * only type we need to generate a UA 8681 * for other registered inits. The 8682 * sense code should be RESERVATIONS 8683 * RELEASED 8684 */ 8685 8686 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8687 if (lun->pr_keys[i + 8688 softc->persis_offset] == 0) 8689 continue; 8690 8691 lun->pending_ua[i] |= 8692 CTL_UA_RES_RELEASE; 8693 } 8694 } 8695 lun->res_type = 0; 8696 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8697 if (lun->pr_key_count==0) { 8698 lun->flags &= ~CTL_LUN_PR_RESERVED; 8699 lun->res_type = 0; 8700 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8701 } 8702 } 8703 lun->PRGeneration++; 8704 break; 8705 8706 case CTL_PR_RESERVE: 8707 lun->flags |= CTL_LUN_PR_RESERVED; 8708 lun->res_type = msg->pr.pr_info.res_type; 8709 lun->pr_res_idx = msg->pr.pr_info.residx; 8710 8711 break; 8712 8713 case CTL_PR_RELEASE: 8714 /* 8715 * if this isn't an exclusive access res generate UA for all 8716 * other registrants. 8717 */ 8718 if (lun->res_type != SPR_TYPE_EX_AC 8719 && lun->res_type != SPR_TYPE_WR_EX) { 8720 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8721 if (lun->pr_keys[i + softc->persis_offset] != 0) 8722 lun->pending_ua[i] |= 8723 CTL_UA_RES_RELEASE; 8724 } 8725 8726 lun->flags &= ~CTL_LUN_PR_RESERVED; 8727 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8728 lun->res_type = 0; 8729 break; 8730 8731 case CTL_PR_PREEMPT: 8732 ctl_pro_preempt_other(lun, msg); 8733 break; 8734 case CTL_PR_CLEAR: 8735 lun->flags &= ~CTL_LUN_PR_RESERVED; 8736 lun->res_type = 0; 8737 lun->pr_key_count = 0; 8738 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8739 8740 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8741 if (lun->pr_keys[i] == 0) 8742 continue; 8743 lun->pr_keys[i] = 0; 8744 ctl_set_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8745 } 8746 lun->PRGeneration++; 8747 break; 8748 } 8749 8750 mtx_unlock(&lun->lun_lock); 8751} 8752 8753int 8754ctl_read_write(struct ctl_scsiio *ctsio) 8755{ 8756 struct ctl_lun *lun; 8757 struct ctl_lba_len_flags *lbalen; 8758 uint64_t lba; 8759 uint32_t num_blocks; 8760 int flags, retval; 8761 int isread; 8762 8763 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8764 8765 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8766 8767 flags = 0; 8768 retval = CTL_RETVAL_COMPLETE; 8769 8770 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8771 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8772 switch (ctsio->cdb[0]) { 8773 case READ_6: 8774 case WRITE_6: { 8775 struct scsi_rw_6 *cdb; 8776 8777 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8778 8779 lba = scsi_3btoul(cdb->addr); 8780 /* only 5 bits are valid in the most significant address byte */ 8781 lba &= 0x1fffff; 8782 num_blocks = cdb->length; 8783 /* 8784 * This is correct according to SBC-2. 8785 */ 8786 if (num_blocks == 0) 8787 num_blocks = 256; 8788 break; 8789 } 8790 case READ_10: 8791 case WRITE_10: { 8792 struct scsi_rw_10 *cdb; 8793 8794 cdb = (struct scsi_rw_10 *)ctsio->cdb; 8795 if (cdb->byte2 & SRW10_FUA) 8796 flags |= CTL_LLF_FUA; 8797 if (cdb->byte2 & SRW10_DPO) 8798 flags |= CTL_LLF_DPO; 8799 lba = scsi_4btoul(cdb->addr); 8800 num_blocks = scsi_2btoul(cdb->length); 8801 break; 8802 } 8803 case WRITE_VERIFY_10: { 8804 struct scsi_write_verify_10 *cdb; 8805 8806 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 8807 flags |= CTL_LLF_FUA; 8808 if (cdb->byte2 & SWV_DPO) 8809 flags |= CTL_LLF_DPO; 8810 lba = scsi_4btoul(cdb->addr); 8811 num_blocks = scsi_2btoul(cdb->length); 8812 break; 8813 } 8814 case READ_12: 8815 case WRITE_12: { 8816 struct scsi_rw_12 *cdb; 8817 8818 cdb = (struct scsi_rw_12 *)ctsio->cdb; 8819 if (cdb->byte2 & SRW12_FUA) 8820 flags |= CTL_LLF_FUA; 8821 if (cdb->byte2 & SRW12_DPO) 8822 flags |= CTL_LLF_DPO; 8823 lba = scsi_4btoul(cdb->addr); 8824 num_blocks = scsi_4btoul(cdb->length); 8825 break; 8826 } 8827 case WRITE_VERIFY_12: { 8828 struct scsi_write_verify_12 *cdb; 8829 8830 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 8831 flags |= CTL_LLF_FUA; 8832 if (cdb->byte2 & SWV_DPO) 8833 flags |= CTL_LLF_DPO; 8834 lba = scsi_4btoul(cdb->addr); 8835 num_blocks = scsi_4btoul(cdb->length); 8836 break; 8837 } 8838 case READ_16: 8839 case WRITE_16: { 8840 struct scsi_rw_16 *cdb; 8841 8842 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8843 if (cdb->byte2 & SRW12_FUA) 8844 flags |= CTL_LLF_FUA; 8845 if (cdb->byte2 & SRW12_DPO) 8846 flags |= CTL_LLF_DPO; 8847 lba = scsi_8btou64(cdb->addr); 8848 num_blocks = scsi_4btoul(cdb->length); 8849 break; 8850 } 8851 case WRITE_ATOMIC_16: { 8852 struct scsi_rw_16 *cdb; 8853 8854 if (lun->be_lun->atomicblock == 0) { 8855 ctl_set_invalid_opcode(ctsio); 8856 ctl_done((union ctl_io *)ctsio); 8857 return (CTL_RETVAL_COMPLETE); 8858 } 8859 8860 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8861 if (cdb->byte2 & SRW12_FUA) 8862 flags |= CTL_LLF_FUA; 8863 if (cdb->byte2 & SRW12_DPO) 8864 flags |= CTL_LLF_DPO; 8865 lba = scsi_8btou64(cdb->addr); 8866 num_blocks = scsi_4btoul(cdb->length); 8867 if (num_blocks > lun->be_lun->atomicblock) { 8868 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 8869 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 8870 /*bit*/ 0); 8871 ctl_done((union ctl_io *)ctsio); 8872 return (CTL_RETVAL_COMPLETE); 8873 } 8874 break; 8875 } 8876 case WRITE_VERIFY_16: { 8877 struct scsi_write_verify_16 *cdb; 8878 8879 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 8880 flags |= CTL_LLF_FUA; 8881 if (cdb->byte2 & SWV_DPO) 8882 flags |= CTL_LLF_DPO; 8883 lba = scsi_8btou64(cdb->addr); 8884 num_blocks = scsi_4btoul(cdb->length); 8885 break; 8886 } 8887 default: 8888 /* 8889 * We got a command we don't support. This shouldn't 8890 * happen, commands should be filtered out above us. 8891 */ 8892 ctl_set_invalid_opcode(ctsio); 8893 ctl_done((union ctl_io *)ctsio); 8894 8895 return (CTL_RETVAL_COMPLETE); 8896 break; /* NOTREACHED */ 8897 } 8898 8899 /* 8900 * The first check is to make sure we're in bounds, the second 8901 * check is to catch wrap-around problems. If the lba + num blocks 8902 * is less than the lba, then we've wrapped around and the block 8903 * range is invalid anyway. 8904 */ 8905 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8906 || ((lba + num_blocks) < lba)) { 8907 ctl_set_lba_out_of_range(ctsio); 8908 ctl_done((union ctl_io *)ctsio); 8909 return (CTL_RETVAL_COMPLETE); 8910 } 8911 8912 /* 8913 * According to SBC-3, a transfer length of 0 is not an error. 8914 * Note that this cannot happen with WRITE(6) or READ(6), since 0 8915 * translates to 256 blocks for those commands. 8916 */ 8917 if (num_blocks == 0) { 8918 ctl_set_success(ctsio); 8919 ctl_done((union ctl_io *)ctsio); 8920 return (CTL_RETVAL_COMPLETE); 8921 } 8922 8923 /* Set FUA and/or DPO if caches are disabled. */ 8924 if (isread) { 8925 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 8926 SCP_RCD) != 0) 8927 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 8928 } else { 8929 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 8930 SCP_WCE) == 0) 8931 flags |= CTL_LLF_FUA; 8932 } 8933 8934 lbalen = (struct ctl_lba_len_flags *) 8935 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8936 lbalen->lba = lba; 8937 lbalen->len = num_blocks; 8938 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 8939 8940 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 8941 ctsio->kern_rel_offset = 0; 8942 8943 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 8944 8945 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8946 8947 return (retval); 8948} 8949 8950static int 8951ctl_cnw_cont(union ctl_io *io) 8952{ 8953 struct ctl_scsiio *ctsio; 8954 struct ctl_lun *lun; 8955 struct ctl_lba_len_flags *lbalen; 8956 int retval; 8957 8958 ctsio = &io->scsiio; 8959 ctsio->io_hdr.status = CTL_STATUS_NONE; 8960 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 8961 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8962 lbalen = (struct ctl_lba_len_flags *) 8963 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8964 lbalen->flags &= ~CTL_LLF_COMPARE; 8965 lbalen->flags |= CTL_LLF_WRITE; 8966 8967 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 8968 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8969 return (retval); 8970} 8971 8972int 8973ctl_cnw(struct ctl_scsiio *ctsio) 8974{ 8975 struct ctl_lun *lun; 8976 struct ctl_lba_len_flags *lbalen; 8977 uint64_t lba; 8978 uint32_t num_blocks; 8979 int flags, retval; 8980 8981 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8982 8983 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 8984 8985 flags = 0; 8986 retval = CTL_RETVAL_COMPLETE; 8987 8988 switch (ctsio->cdb[0]) { 8989 case COMPARE_AND_WRITE: { 8990 struct scsi_compare_and_write *cdb; 8991 8992 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 8993 if (cdb->byte2 & SRW10_FUA) 8994 flags |= CTL_LLF_FUA; 8995 if (cdb->byte2 & SRW10_DPO) 8996 flags |= CTL_LLF_DPO; 8997 lba = scsi_8btou64(cdb->addr); 8998 num_blocks = cdb->length; 8999 break; 9000 } 9001 default: 9002 /* 9003 * We got a command we don't support. This shouldn't 9004 * happen, commands should be filtered out above us. 9005 */ 9006 ctl_set_invalid_opcode(ctsio); 9007 ctl_done((union ctl_io *)ctsio); 9008 9009 return (CTL_RETVAL_COMPLETE); 9010 break; /* NOTREACHED */ 9011 } 9012 9013 /* 9014 * The first check is to make sure we're in bounds, the second 9015 * check is to catch wrap-around problems. If the lba + num blocks 9016 * is less than the lba, then we've wrapped around and the block 9017 * range is invalid anyway. 9018 */ 9019 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9020 || ((lba + num_blocks) < lba)) { 9021 ctl_set_lba_out_of_range(ctsio); 9022 ctl_done((union ctl_io *)ctsio); 9023 return (CTL_RETVAL_COMPLETE); 9024 } 9025 9026 /* 9027 * According to SBC-3, a transfer length of 0 is not an error. 9028 */ 9029 if (num_blocks == 0) { 9030 ctl_set_success(ctsio); 9031 ctl_done((union ctl_io *)ctsio); 9032 return (CTL_RETVAL_COMPLETE); 9033 } 9034 9035 /* Set FUA if write cache is disabled. */ 9036 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9037 SCP_WCE) == 0) 9038 flags |= CTL_LLF_FUA; 9039 9040 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 9041 ctsio->kern_rel_offset = 0; 9042 9043 /* 9044 * Set the IO_CONT flag, so that if this I/O gets passed to 9045 * ctl_data_submit_done(), it'll get passed back to 9046 * ctl_ctl_cnw_cont() for further processing. 9047 */ 9048 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 9049 ctsio->io_cont = ctl_cnw_cont; 9050 9051 lbalen = (struct ctl_lba_len_flags *) 9052 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9053 lbalen->lba = lba; 9054 lbalen->len = num_blocks; 9055 lbalen->flags = CTL_LLF_COMPARE | flags; 9056 9057 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 9058 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9059 return (retval); 9060} 9061 9062int 9063ctl_verify(struct ctl_scsiio *ctsio) 9064{ 9065 struct ctl_lun *lun; 9066 struct ctl_lba_len_flags *lbalen; 9067 uint64_t lba; 9068 uint32_t num_blocks; 9069 int bytchk, flags; 9070 int retval; 9071 9072 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9073 9074 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 9075 9076 bytchk = 0; 9077 flags = CTL_LLF_FUA; 9078 retval = CTL_RETVAL_COMPLETE; 9079 9080 switch (ctsio->cdb[0]) { 9081 case VERIFY_10: { 9082 struct scsi_verify_10 *cdb; 9083 9084 cdb = (struct scsi_verify_10 *)ctsio->cdb; 9085 if (cdb->byte2 & SVFY_BYTCHK) 9086 bytchk = 1; 9087 if (cdb->byte2 & SVFY_DPO) 9088 flags |= CTL_LLF_DPO; 9089 lba = scsi_4btoul(cdb->addr); 9090 num_blocks = scsi_2btoul(cdb->length); 9091 break; 9092 } 9093 case VERIFY_12: { 9094 struct scsi_verify_12 *cdb; 9095 9096 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9097 if (cdb->byte2 & SVFY_BYTCHK) 9098 bytchk = 1; 9099 if (cdb->byte2 & SVFY_DPO) 9100 flags |= CTL_LLF_DPO; 9101 lba = scsi_4btoul(cdb->addr); 9102 num_blocks = scsi_4btoul(cdb->length); 9103 break; 9104 } 9105 case VERIFY_16: { 9106 struct scsi_rw_16 *cdb; 9107 9108 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9109 if (cdb->byte2 & SVFY_BYTCHK) 9110 bytchk = 1; 9111 if (cdb->byte2 & SVFY_DPO) 9112 flags |= CTL_LLF_DPO; 9113 lba = scsi_8btou64(cdb->addr); 9114 num_blocks = scsi_4btoul(cdb->length); 9115 break; 9116 } 9117 default: 9118 /* 9119 * We got a command we don't support. This shouldn't 9120 * happen, commands should be filtered out above us. 9121 */ 9122 ctl_set_invalid_opcode(ctsio); 9123 ctl_done((union ctl_io *)ctsio); 9124 return (CTL_RETVAL_COMPLETE); 9125 } 9126 9127 /* 9128 * The first check is to make sure we're in bounds, the second 9129 * check is to catch wrap-around problems. If the lba + num blocks 9130 * is less than the lba, then we've wrapped around and the block 9131 * range is invalid anyway. 9132 */ 9133 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9134 || ((lba + num_blocks) < lba)) { 9135 ctl_set_lba_out_of_range(ctsio); 9136 ctl_done((union ctl_io *)ctsio); 9137 return (CTL_RETVAL_COMPLETE); 9138 } 9139 9140 /* 9141 * According to SBC-3, a transfer length of 0 is not an error. 9142 */ 9143 if (num_blocks == 0) { 9144 ctl_set_success(ctsio); 9145 ctl_done((union ctl_io *)ctsio); 9146 return (CTL_RETVAL_COMPLETE); 9147 } 9148 9149 lbalen = (struct ctl_lba_len_flags *) 9150 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9151 lbalen->lba = lba; 9152 lbalen->len = num_blocks; 9153 if (bytchk) { 9154 lbalen->flags = CTL_LLF_COMPARE | flags; 9155 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9156 } else { 9157 lbalen->flags = CTL_LLF_VERIFY | flags; 9158 ctsio->kern_total_len = 0; 9159 } 9160 ctsio->kern_rel_offset = 0; 9161 9162 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9163 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9164 return (retval); 9165} 9166 9167int 9168ctl_report_luns(struct ctl_scsiio *ctsio) 9169{ 9170 struct scsi_report_luns *cdb; 9171 struct scsi_report_luns_data *lun_data; 9172 struct ctl_lun *lun, *request_lun; 9173 int num_luns, retval; 9174 uint32_t alloc_len, lun_datalen; 9175 int num_filled, well_known; 9176 uint32_t initidx, targ_lun_id, lun_id; 9177 9178 retval = CTL_RETVAL_COMPLETE; 9179 well_known = 0; 9180 9181 cdb = (struct scsi_report_luns *)ctsio->cdb; 9182 9183 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9184 9185 mtx_lock(&control_softc->ctl_lock); 9186 num_luns = control_softc->num_luns; 9187 mtx_unlock(&control_softc->ctl_lock); 9188 9189 switch (cdb->select_report) { 9190 case RPL_REPORT_DEFAULT: 9191 case RPL_REPORT_ALL: 9192 break; 9193 case RPL_REPORT_WELLKNOWN: 9194 well_known = 1; 9195 num_luns = 0; 9196 break; 9197 default: 9198 ctl_set_invalid_field(ctsio, 9199 /*sks_valid*/ 1, 9200 /*command*/ 1, 9201 /*field*/ 2, 9202 /*bit_valid*/ 0, 9203 /*bit*/ 0); 9204 ctl_done((union ctl_io *)ctsio); 9205 return (retval); 9206 break; /* NOTREACHED */ 9207 } 9208 9209 alloc_len = scsi_4btoul(cdb->length); 9210 /* 9211 * The initiator has to allocate at least 16 bytes for this request, 9212 * so he can at least get the header and the first LUN. Otherwise 9213 * we reject the request (per SPC-3 rev 14, section 6.21). 9214 */ 9215 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9216 sizeof(struct scsi_report_luns_lundata))) { 9217 ctl_set_invalid_field(ctsio, 9218 /*sks_valid*/ 1, 9219 /*command*/ 1, 9220 /*field*/ 6, 9221 /*bit_valid*/ 0, 9222 /*bit*/ 0); 9223 ctl_done((union ctl_io *)ctsio); 9224 return (retval); 9225 } 9226 9227 request_lun = (struct ctl_lun *) 9228 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9229 9230 lun_datalen = sizeof(*lun_data) + 9231 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9232 9233 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9234 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9235 ctsio->kern_sg_entries = 0; 9236 9237 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9238 9239 mtx_lock(&control_softc->ctl_lock); 9240 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9241 lun_id = ctl_map_lun(ctsio->io_hdr.nexus.targ_port, targ_lun_id); 9242 if (lun_id >= CTL_MAX_LUNS) 9243 continue; 9244 lun = control_softc->ctl_luns[lun_id]; 9245 if (lun == NULL) 9246 continue; 9247 9248 if (targ_lun_id <= 0xff) { 9249 /* 9250 * Peripheral addressing method, bus number 0. 9251 */ 9252 lun_data->luns[num_filled].lundata[0] = 9253 RPL_LUNDATA_ATYP_PERIPH; 9254 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9255 num_filled++; 9256 } else if (targ_lun_id <= 0x3fff) { 9257 /* 9258 * Flat addressing method. 9259 */ 9260 lun_data->luns[num_filled].lundata[0] = 9261 RPL_LUNDATA_ATYP_FLAT | (targ_lun_id >> 8); 9262 lun_data->luns[num_filled].lundata[1] = 9263 (targ_lun_id & 0xff); 9264 num_filled++; 9265 } else if (targ_lun_id <= 0xffffff) { 9266 /* 9267 * Extended flat addressing method. 9268 */ 9269 lun_data->luns[num_filled].lundata[0] = 9270 RPL_LUNDATA_ATYP_EXTLUN | 0x12; 9271 scsi_ulto3b(targ_lun_id, 9272 &lun_data->luns[num_filled].lundata[1]); 9273 num_filled++; 9274 } else { 9275 printf("ctl_report_luns: bogus LUN number %jd, " 9276 "skipping\n", (intmax_t)targ_lun_id); 9277 } 9278 /* 9279 * According to SPC-3, rev 14 section 6.21: 9280 * 9281 * "The execution of a REPORT LUNS command to any valid and 9282 * installed logical unit shall clear the REPORTED LUNS DATA 9283 * HAS CHANGED unit attention condition for all logical 9284 * units of that target with respect to the requesting 9285 * initiator. A valid and installed logical unit is one 9286 * having a PERIPHERAL QUALIFIER of 000b in the standard 9287 * INQUIRY data (see 6.4.2)." 9288 * 9289 * If request_lun is NULL, the LUN this report luns command 9290 * was issued to is either disabled or doesn't exist. In that 9291 * case, we shouldn't clear any pending lun change unit 9292 * attention. 9293 */ 9294 if (request_lun != NULL) { 9295 mtx_lock(&lun->lun_lock); 9296 lun->pending_ua[initidx] &= ~CTL_UA_LUN_CHANGE; 9297 mtx_unlock(&lun->lun_lock); 9298 } 9299 } 9300 mtx_unlock(&control_softc->ctl_lock); 9301 9302 /* 9303 * It's quite possible that we've returned fewer LUNs than we allocated 9304 * space for. Trim it. 9305 */ 9306 lun_datalen = sizeof(*lun_data) + 9307 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9308 9309 if (lun_datalen < alloc_len) { 9310 ctsio->residual = alloc_len - lun_datalen; 9311 ctsio->kern_data_len = lun_datalen; 9312 ctsio->kern_total_len = lun_datalen; 9313 } else { 9314 ctsio->residual = 0; 9315 ctsio->kern_data_len = alloc_len; 9316 ctsio->kern_total_len = alloc_len; 9317 } 9318 ctsio->kern_data_resid = 0; 9319 ctsio->kern_rel_offset = 0; 9320 ctsio->kern_sg_entries = 0; 9321 9322 /* 9323 * We set this to the actual data length, regardless of how much 9324 * space we actually have to return results. If the user looks at 9325 * this value, he'll know whether or not he allocated enough space 9326 * and reissue the command if necessary. We don't support well 9327 * known logical units, so if the user asks for that, return none. 9328 */ 9329 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9330 9331 /* 9332 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9333 * this request. 9334 */ 9335 ctl_set_success(ctsio); 9336 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9337 ctsio->be_move_done = ctl_config_move_done; 9338 ctl_datamove((union ctl_io *)ctsio); 9339 return (retval); 9340} 9341 9342int 9343ctl_request_sense(struct ctl_scsiio *ctsio) 9344{ 9345 struct scsi_request_sense *cdb; 9346 struct scsi_sense_data *sense_ptr; 9347 struct ctl_lun *lun; 9348 uint32_t initidx; 9349 int have_error; 9350 scsi_sense_data_type sense_format; 9351 9352 cdb = (struct scsi_request_sense *)ctsio->cdb; 9353 9354 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9355 9356 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9357 9358 /* 9359 * Determine which sense format the user wants. 9360 */ 9361 if (cdb->byte2 & SRS_DESC) 9362 sense_format = SSD_TYPE_DESC; 9363 else 9364 sense_format = SSD_TYPE_FIXED; 9365 9366 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9367 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9368 ctsio->kern_sg_entries = 0; 9369 9370 /* 9371 * struct scsi_sense_data, which is currently set to 256 bytes, is 9372 * larger than the largest allowed value for the length field in the 9373 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9374 */ 9375 ctsio->residual = 0; 9376 ctsio->kern_data_len = cdb->length; 9377 ctsio->kern_total_len = cdb->length; 9378 9379 ctsio->kern_data_resid = 0; 9380 ctsio->kern_rel_offset = 0; 9381 ctsio->kern_sg_entries = 0; 9382 9383 /* 9384 * If we don't have a LUN, we don't have any pending sense. 9385 */ 9386 if (lun == NULL) 9387 goto no_sense; 9388 9389 have_error = 0; 9390 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9391 /* 9392 * Check for pending sense, and then for pending unit attentions. 9393 * Pending sense gets returned first, then pending unit attentions. 9394 */ 9395 mtx_lock(&lun->lun_lock); 9396#ifdef CTL_WITH_CA 9397 if (ctl_is_set(lun->have_ca, initidx)) { 9398 scsi_sense_data_type stored_format; 9399 9400 /* 9401 * Check to see which sense format was used for the stored 9402 * sense data. 9403 */ 9404 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9405 9406 /* 9407 * If the user requested a different sense format than the 9408 * one we stored, then we need to convert it to the other 9409 * format. If we're going from descriptor to fixed format 9410 * sense data, we may lose things in translation, depending 9411 * on what options were used. 9412 * 9413 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9414 * for some reason we'll just copy it out as-is. 9415 */ 9416 if ((stored_format == SSD_TYPE_FIXED) 9417 && (sense_format == SSD_TYPE_DESC)) 9418 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9419 &lun->pending_sense[initidx], 9420 (struct scsi_sense_data_desc *)sense_ptr); 9421 else if ((stored_format == SSD_TYPE_DESC) 9422 && (sense_format == SSD_TYPE_FIXED)) 9423 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9424 &lun->pending_sense[initidx], 9425 (struct scsi_sense_data_fixed *)sense_ptr); 9426 else 9427 memcpy(sense_ptr, &lun->pending_sense[initidx], 9428 ctl_min(sizeof(*sense_ptr), 9429 sizeof(lun->pending_sense[initidx]))); 9430 9431 ctl_clear_mask(lun->have_ca, initidx); 9432 have_error = 1; 9433 } else 9434#endif 9435 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 9436 ctl_ua_type ua_type; 9437 9438 ua_type = ctl_build_ua(&lun->pending_ua[initidx], 9439 sense_ptr, sense_format); 9440 if (ua_type != CTL_UA_NONE) 9441 have_error = 1; 9442 } 9443 mtx_unlock(&lun->lun_lock); 9444 9445 /* 9446 * We already have a pending error, return it. 9447 */ 9448 if (have_error != 0) { 9449 /* 9450 * We report the SCSI status as OK, since the status of the 9451 * request sense command itself is OK. 9452 * We report 0 for the sense length, because we aren't doing 9453 * autosense in this case. We're reporting sense as 9454 * parameter data. 9455 */ 9456 ctl_set_success(ctsio); 9457 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9458 ctsio->be_move_done = ctl_config_move_done; 9459 ctl_datamove((union ctl_io *)ctsio); 9460 return (CTL_RETVAL_COMPLETE); 9461 } 9462 9463no_sense: 9464 9465 /* 9466 * No sense information to report, so we report that everything is 9467 * okay. 9468 */ 9469 ctl_set_sense_data(sense_ptr, 9470 lun, 9471 sense_format, 9472 /*current_error*/ 1, 9473 /*sense_key*/ SSD_KEY_NO_SENSE, 9474 /*asc*/ 0x00, 9475 /*ascq*/ 0x00, 9476 SSD_ELEM_NONE); 9477 9478 /* 9479 * We report 0 for the sense length, because we aren't doing 9480 * autosense in this case. We're reporting sense as parameter data. 9481 */ 9482 ctl_set_success(ctsio); 9483 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9484 ctsio->be_move_done = ctl_config_move_done; 9485 ctl_datamove((union ctl_io *)ctsio); 9486 return (CTL_RETVAL_COMPLETE); 9487} 9488 9489int 9490ctl_tur(struct ctl_scsiio *ctsio) 9491{ 9492 9493 CTL_DEBUG_PRINT(("ctl_tur\n")); 9494 9495 ctl_set_success(ctsio); 9496 ctl_done((union ctl_io *)ctsio); 9497 9498 return (CTL_RETVAL_COMPLETE); 9499} 9500 9501#ifdef notyet 9502static int 9503ctl_cmddt_inquiry(struct ctl_scsiio *ctsio) 9504{ 9505 9506} 9507#endif 9508 9509static int 9510ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9511{ 9512 struct scsi_vpd_supported_pages *pages; 9513 int sup_page_size; 9514 struct ctl_lun *lun; 9515 9516 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9517 9518 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9519 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9520 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9521 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9522 ctsio->kern_sg_entries = 0; 9523 9524 if (sup_page_size < alloc_len) { 9525 ctsio->residual = alloc_len - sup_page_size; 9526 ctsio->kern_data_len = sup_page_size; 9527 ctsio->kern_total_len = sup_page_size; 9528 } else { 9529 ctsio->residual = 0; 9530 ctsio->kern_data_len = alloc_len; 9531 ctsio->kern_total_len = alloc_len; 9532 } 9533 ctsio->kern_data_resid = 0; 9534 ctsio->kern_rel_offset = 0; 9535 ctsio->kern_sg_entries = 0; 9536 9537 /* 9538 * The control device is always connected. The disk device, on the 9539 * other hand, may not be online all the time. Need to change this 9540 * to figure out whether the disk device is actually online or not. 9541 */ 9542 if (lun != NULL) 9543 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9544 lun->be_lun->lun_type; 9545 else 9546 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9547 9548 pages->length = SCSI_EVPD_NUM_SUPPORTED_PAGES; 9549 /* Supported VPD pages */ 9550 pages->page_list[0] = SVPD_SUPPORTED_PAGES; 9551 /* Serial Number */ 9552 pages->page_list[1] = SVPD_UNIT_SERIAL_NUMBER; 9553 /* Device Identification */ 9554 pages->page_list[2] = SVPD_DEVICE_ID; 9555 /* Extended INQUIRY Data */ 9556 pages->page_list[3] = SVPD_EXTENDED_INQUIRY_DATA; 9557 /* Mode Page Policy */ 9558 pages->page_list[4] = SVPD_MODE_PAGE_POLICY; 9559 /* SCSI Ports */ 9560 pages->page_list[5] = SVPD_SCSI_PORTS; 9561 /* Third-party Copy */ 9562 pages->page_list[6] = SVPD_SCSI_TPC; 9563 /* Block limits */ 9564 pages->page_list[7] = SVPD_BLOCK_LIMITS; 9565 /* Block Device Characteristics */ 9566 pages->page_list[8] = SVPD_BDC; 9567 /* Logical Block Provisioning */ 9568 pages->page_list[9] = SVPD_LBP; 9569 9570 ctl_set_success(ctsio); 9571 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9572 ctsio->be_move_done = ctl_config_move_done; 9573 ctl_datamove((union ctl_io *)ctsio); 9574 return (CTL_RETVAL_COMPLETE); 9575} 9576 9577static int 9578ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9579{ 9580 struct scsi_vpd_unit_serial_number *sn_ptr; 9581 struct ctl_lun *lun; 9582 int data_len; 9583 9584 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9585 9586 data_len = 4 + CTL_SN_LEN; 9587 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9588 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9589 if (data_len < alloc_len) { 9590 ctsio->residual = alloc_len - data_len; 9591 ctsio->kern_data_len = data_len; 9592 ctsio->kern_total_len = data_len; 9593 } else { 9594 ctsio->residual = 0; 9595 ctsio->kern_data_len = alloc_len; 9596 ctsio->kern_total_len = alloc_len; 9597 } 9598 ctsio->kern_data_resid = 0; 9599 ctsio->kern_rel_offset = 0; 9600 ctsio->kern_sg_entries = 0; 9601 9602 /* 9603 * The control device is always connected. The disk device, on the 9604 * other hand, may not be online all the time. Need to change this 9605 * to figure out whether the disk device is actually online or not. 9606 */ 9607 if (lun != NULL) 9608 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9609 lun->be_lun->lun_type; 9610 else 9611 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9612 9613 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9614 sn_ptr->length = CTL_SN_LEN; 9615 /* 9616 * If we don't have a LUN, we just leave the serial number as 9617 * all spaces. 9618 */ 9619 if (lun != NULL) { 9620 strncpy((char *)sn_ptr->serial_num, 9621 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9622 } else 9623 memset(sn_ptr->serial_num, 0x20, CTL_SN_LEN); 9624 9625 ctl_set_success(ctsio); 9626 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9627 ctsio->be_move_done = ctl_config_move_done; 9628 ctl_datamove((union ctl_io *)ctsio); 9629 return (CTL_RETVAL_COMPLETE); 9630} 9631 9632 9633static int 9634ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9635{ 9636 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9637 struct ctl_lun *lun; 9638 int data_len; 9639 9640 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9641 9642 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9643 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9644 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9645 ctsio->kern_sg_entries = 0; 9646 9647 if (data_len < alloc_len) { 9648 ctsio->residual = alloc_len - data_len; 9649 ctsio->kern_data_len = data_len; 9650 ctsio->kern_total_len = data_len; 9651 } else { 9652 ctsio->residual = 0; 9653 ctsio->kern_data_len = alloc_len; 9654 ctsio->kern_total_len = alloc_len; 9655 } 9656 ctsio->kern_data_resid = 0; 9657 ctsio->kern_rel_offset = 0; 9658 ctsio->kern_sg_entries = 0; 9659 9660 /* 9661 * The control device is always connected. The disk device, on the 9662 * other hand, may not be online all the time. 9663 */ 9664 if (lun != NULL) 9665 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9666 lun->be_lun->lun_type; 9667 else 9668 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9669 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9670 eid_ptr->page_length = data_len - 4; 9671 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9672 eid_ptr->flags3 = SVPD_EID_V_SUP; 9673 9674 ctl_set_success(ctsio); 9675 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9676 ctsio->be_move_done = ctl_config_move_done; 9677 ctl_datamove((union ctl_io *)ctsio); 9678 return (CTL_RETVAL_COMPLETE); 9679} 9680 9681static int 9682ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9683{ 9684 struct scsi_vpd_mode_page_policy *mpp_ptr; 9685 struct ctl_lun *lun; 9686 int data_len; 9687 9688 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9689 9690 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9691 sizeof(struct scsi_vpd_mode_page_policy_descr); 9692 9693 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9694 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9695 ctsio->kern_sg_entries = 0; 9696 9697 if (data_len < alloc_len) { 9698 ctsio->residual = alloc_len - data_len; 9699 ctsio->kern_data_len = data_len; 9700 ctsio->kern_total_len = data_len; 9701 } else { 9702 ctsio->residual = 0; 9703 ctsio->kern_data_len = alloc_len; 9704 ctsio->kern_total_len = alloc_len; 9705 } 9706 ctsio->kern_data_resid = 0; 9707 ctsio->kern_rel_offset = 0; 9708 ctsio->kern_sg_entries = 0; 9709 9710 /* 9711 * The control device is always connected. The disk device, on the 9712 * other hand, may not be online all the time. 9713 */ 9714 if (lun != NULL) 9715 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9716 lun->be_lun->lun_type; 9717 else 9718 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9719 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9720 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9721 mpp_ptr->descr[0].page_code = 0x3f; 9722 mpp_ptr->descr[0].subpage_code = 0xff; 9723 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9724 9725 ctl_set_success(ctsio); 9726 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9727 ctsio->be_move_done = ctl_config_move_done; 9728 ctl_datamove((union ctl_io *)ctsio); 9729 return (CTL_RETVAL_COMPLETE); 9730} 9731 9732static int 9733ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9734{ 9735 struct scsi_vpd_device_id *devid_ptr; 9736 struct scsi_vpd_id_descriptor *desc; 9737 struct ctl_softc *ctl_softc; 9738 struct ctl_lun *lun; 9739 struct ctl_port *port; 9740 int data_len; 9741 uint8_t proto; 9742 9743 ctl_softc = control_softc; 9744 9745 port = ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]; 9746 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9747 9748 data_len = sizeof(struct scsi_vpd_device_id) + 9749 sizeof(struct scsi_vpd_id_descriptor) + 9750 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9751 sizeof(struct scsi_vpd_id_descriptor) + 9752 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9753 if (lun && lun->lun_devid) 9754 data_len += lun->lun_devid->len; 9755 if (port->port_devid) 9756 data_len += port->port_devid->len; 9757 if (port->target_devid) 9758 data_len += port->target_devid->len; 9759 9760 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9761 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9762 ctsio->kern_sg_entries = 0; 9763 9764 if (data_len < alloc_len) { 9765 ctsio->residual = alloc_len - data_len; 9766 ctsio->kern_data_len = data_len; 9767 ctsio->kern_total_len = data_len; 9768 } else { 9769 ctsio->residual = 0; 9770 ctsio->kern_data_len = alloc_len; 9771 ctsio->kern_total_len = alloc_len; 9772 } 9773 ctsio->kern_data_resid = 0; 9774 ctsio->kern_rel_offset = 0; 9775 ctsio->kern_sg_entries = 0; 9776 9777 /* 9778 * The control device is always connected. The disk device, on the 9779 * other hand, may not be online all the time. 9780 */ 9781 if (lun != NULL) 9782 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9783 lun->be_lun->lun_type; 9784 else 9785 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9786 devid_ptr->page_code = SVPD_DEVICE_ID; 9787 scsi_ulto2b(data_len - 4, devid_ptr->length); 9788 9789 if (port->port_type == CTL_PORT_FC) 9790 proto = SCSI_PROTO_FC << 4; 9791 else if (port->port_type == CTL_PORT_ISCSI) 9792 proto = SCSI_PROTO_ISCSI << 4; 9793 else 9794 proto = SCSI_PROTO_SPI << 4; 9795 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9796 9797 /* 9798 * We're using a LUN association here. i.e., this device ID is a 9799 * per-LUN identifier. 9800 */ 9801 if (lun && lun->lun_devid) { 9802 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9803 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9804 lun->lun_devid->len); 9805 } 9806 9807 /* 9808 * This is for the WWPN which is a port association. 9809 */ 9810 if (port->port_devid) { 9811 memcpy(desc, port->port_devid->data, port->port_devid->len); 9812 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9813 port->port_devid->len); 9814 } 9815 9816 /* 9817 * This is for the Relative Target Port(type 4h) identifier 9818 */ 9819 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9820 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9821 SVPD_ID_TYPE_RELTARG; 9822 desc->length = 4; 9823 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9824 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9825 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9826 9827 /* 9828 * This is for the Target Port Group(type 5h) identifier 9829 */ 9830 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9831 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9832 SVPD_ID_TYPE_TPORTGRP; 9833 desc->length = 4; 9834 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS + 1, 9835 &desc->identifier[2]); 9836 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9837 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9838 9839 /* 9840 * This is for the Target identifier 9841 */ 9842 if (port->target_devid) { 9843 memcpy(desc, port->target_devid->data, port->target_devid->len); 9844 } 9845 9846 ctl_set_success(ctsio); 9847 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9848 ctsio->be_move_done = ctl_config_move_done; 9849 ctl_datamove((union ctl_io *)ctsio); 9850 return (CTL_RETVAL_COMPLETE); 9851} 9852 9853static int 9854ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 9855{ 9856 struct ctl_softc *softc = control_softc; 9857 struct scsi_vpd_scsi_ports *sp; 9858 struct scsi_vpd_port_designation *pd; 9859 struct scsi_vpd_port_designation_cont *pdc; 9860 struct ctl_lun *lun; 9861 struct ctl_port *port; 9862 int data_len, num_target_ports, iid_len, id_len, g, pg, p; 9863 int num_target_port_groups; 9864 9865 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9866 9867 if (softc->is_single) 9868 num_target_port_groups = 1; 9869 else 9870 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 9871 num_target_ports = 0; 9872 iid_len = 0; 9873 id_len = 0; 9874 mtx_lock(&softc->ctl_lock); 9875 STAILQ_FOREACH(port, &softc->port_list, links) { 9876 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9877 continue; 9878 if (lun != NULL && 9879 ctl_map_lun_back(port->targ_port, lun->lun) >= 9880 CTL_MAX_LUNS) 9881 continue; 9882 num_target_ports++; 9883 if (port->init_devid) 9884 iid_len += port->init_devid->len; 9885 if (port->port_devid) 9886 id_len += port->port_devid->len; 9887 } 9888 mtx_unlock(&softc->ctl_lock); 9889 9890 data_len = sizeof(struct scsi_vpd_scsi_ports) + num_target_port_groups * 9891 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 9892 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 9893 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9894 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 9895 ctsio->kern_sg_entries = 0; 9896 9897 if (data_len < alloc_len) { 9898 ctsio->residual = alloc_len - data_len; 9899 ctsio->kern_data_len = data_len; 9900 ctsio->kern_total_len = data_len; 9901 } else { 9902 ctsio->residual = 0; 9903 ctsio->kern_data_len = alloc_len; 9904 ctsio->kern_total_len = alloc_len; 9905 } 9906 ctsio->kern_data_resid = 0; 9907 ctsio->kern_rel_offset = 0; 9908 ctsio->kern_sg_entries = 0; 9909 9910 /* 9911 * The control device is always connected. The disk device, on the 9912 * other hand, may not be online all the time. Need to change this 9913 * to figure out whether the disk device is actually online or not. 9914 */ 9915 if (lun != NULL) 9916 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 9917 lun->be_lun->lun_type; 9918 else 9919 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9920 9921 sp->page_code = SVPD_SCSI_PORTS; 9922 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 9923 sp->page_length); 9924 pd = &sp->design[0]; 9925 9926 mtx_lock(&softc->ctl_lock); 9927 pg = softc->port_offset / CTL_MAX_PORTS; 9928 for (g = 0; g < num_target_port_groups; g++) { 9929 STAILQ_FOREACH(port, &softc->port_list, links) { 9930 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9931 continue; 9932 if (lun != NULL && 9933 ctl_map_lun_back(port->targ_port, lun->lun) >= 9934 CTL_MAX_LUNS) 9935 continue; 9936 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 9937 scsi_ulto2b(p, pd->relative_port_id); 9938 if (port->init_devid && g == pg) { 9939 iid_len = port->init_devid->len; 9940 memcpy(pd->initiator_transportid, 9941 port->init_devid->data, port->init_devid->len); 9942 } else 9943 iid_len = 0; 9944 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 9945 pdc = (struct scsi_vpd_port_designation_cont *) 9946 (&pd->initiator_transportid[iid_len]); 9947 if (port->port_devid && g == pg) { 9948 id_len = port->port_devid->len; 9949 memcpy(pdc->target_port_descriptors, 9950 port->port_devid->data, port->port_devid->len); 9951 } else 9952 id_len = 0; 9953 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 9954 pd = (struct scsi_vpd_port_designation *) 9955 ((uint8_t *)pdc->target_port_descriptors + id_len); 9956 } 9957 } 9958 mtx_unlock(&softc->ctl_lock); 9959 9960 ctl_set_success(ctsio); 9961 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9962 ctsio->be_move_done = ctl_config_move_done; 9963 ctl_datamove((union ctl_io *)ctsio); 9964 return (CTL_RETVAL_COMPLETE); 9965} 9966 9967static int 9968ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 9969{ 9970 struct scsi_vpd_block_limits *bl_ptr; 9971 struct ctl_lun *lun; 9972 int bs; 9973 9974 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9975 9976 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 9977 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 9978 ctsio->kern_sg_entries = 0; 9979 9980 if (sizeof(*bl_ptr) < alloc_len) { 9981 ctsio->residual = alloc_len - sizeof(*bl_ptr); 9982 ctsio->kern_data_len = sizeof(*bl_ptr); 9983 ctsio->kern_total_len = sizeof(*bl_ptr); 9984 } else { 9985 ctsio->residual = 0; 9986 ctsio->kern_data_len = alloc_len; 9987 ctsio->kern_total_len = alloc_len; 9988 } 9989 ctsio->kern_data_resid = 0; 9990 ctsio->kern_rel_offset = 0; 9991 ctsio->kern_sg_entries = 0; 9992 9993 /* 9994 * The control device is always connected. The disk device, on the 9995 * other hand, may not be online all the time. Need to change this 9996 * to figure out whether the disk device is actually online or not. 9997 */ 9998 if (lun != NULL) 9999 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10000 lun->be_lun->lun_type; 10001 else 10002 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10003 10004 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 10005 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 10006 bl_ptr->max_cmp_write_len = 0xff; 10007 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 10008 if (lun != NULL) { 10009 bs = lun->be_lun->blocksize; 10010 scsi_ulto4b(MAXPHYS / bs, bl_ptr->opt_txfer_len); 10011 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10012 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 10013 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 10014 if (lun->be_lun->pblockexp != 0) { 10015 scsi_ulto4b((1 << lun->be_lun->pblockexp), 10016 bl_ptr->opt_unmap_grain); 10017 scsi_ulto4b(0x80000000 | lun->be_lun->pblockoff, 10018 bl_ptr->unmap_grain_align); 10019 } 10020 } 10021 scsi_ulto4b(lun->be_lun->atomicblock, 10022 bl_ptr->max_atomic_transfer_length); 10023 scsi_ulto4b(0, bl_ptr->atomic_alignment); 10024 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 10025 } 10026 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 10027 10028 ctl_set_success(ctsio); 10029 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10030 ctsio->be_move_done = ctl_config_move_done; 10031 ctl_datamove((union ctl_io *)ctsio); 10032 return (CTL_RETVAL_COMPLETE); 10033} 10034 10035static int 10036ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 10037{ 10038 struct scsi_vpd_block_device_characteristics *bdc_ptr; 10039 struct ctl_lun *lun; 10040 const char *value; 10041 u_int i; 10042 10043 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10044 10045 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 10046 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 10047 ctsio->kern_sg_entries = 0; 10048 10049 if (sizeof(*bdc_ptr) < alloc_len) { 10050 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 10051 ctsio->kern_data_len = sizeof(*bdc_ptr); 10052 ctsio->kern_total_len = sizeof(*bdc_ptr); 10053 } else { 10054 ctsio->residual = 0; 10055 ctsio->kern_data_len = alloc_len; 10056 ctsio->kern_total_len = alloc_len; 10057 } 10058 ctsio->kern_data_resid = 0; 10059 ctsio->kern_rel_offset = 0; 10060 ctsio->kern_sg_entries = 0; 10061 10062 /* 10063 * The control device is always connected. The disk device, on the 10064 * other hand, may not be online all the time. Need to change this 10065 * to figure out whether the disk device is actually online or not. 10066 */ 10067 if (lun != NULL) 10068 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10069 lun->be_lun->lun_type; 10070 else 10071 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10072 bdc_ptr->page_code = SVPD_BDC; 10073 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 10074 if (lun != NULL && 10075 (value = ctl_get_opt(&lun->be_lun->options, "rpm")) != NULL) 10076 i = strtol(value, NULL, 0); 10077 else 10078 i = CTL_DEFAULT_ROTATION_RATE; 10079 scsi_ulto2b(i, bdc_ptr->medium_rotation_rate); 10080 if (lun != NULL && 10081 (value = ctl_get_opt(&lun->be_lun->options, "formfactor")) != NULL) 10082 i = strtol(value, NULL, 0); 10083 else 10084 i = 0; 10085 bdc_ptr->wab_wac_ff = (i & 0x0f); 10086 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 10087 10088 ctl_set_success(ctsio); 10089 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10090 ctsio->be_move_done = ctl_config_move_done; 10091 ctl_datamove((union ctl_io *)ctsio); 10092 return (CTL_RETVAL_COMPLETE); 10093} 10094 10095static int 10096ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10097{ 10098 struct scsi_vpd_logical_block_prov *lbp_ptr; 10099 struct ctl_lun *lun; 10100 10101 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10102 10103 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10104 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10105 ctsio->kern_sg_entries = 0; 10106 10107 if (sizeof(*lbp_ptr) < alloc_len) { 10108 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10109 ctsio->kern_data_len = sizeof(*lbp_ptr); 10110 ctsio->kern_total_len = sizeof(*lbp_ptr); 10111 } else { 10112 ctsio->residual = 0; 10113 ctsio->kern_data_len = alloc_len; 10114 ctsio->kern_total_len = alloc_len; 10115 } 10116 ctsio->kern_data_resid = 0; 10117 ctsio->kern_rel_offset = 0; 10118 ctsio->kern_sg_entries = 0; 10119 10120 /* 10121 * The control device is always connected. The disk device, on the 10122 * other hand, may not be online all the time. Need to change this 10123 * to figure out whether the disk device is actually online or not. 10124 */ 10125 if (lun != NULL) 10126 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10127 lun->be_lun->lun_type; 10128 else 10129 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10130 10131 lbp_ptr->page_code = SVPD_LBP; 10132 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10133 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10134 lbp_ptr->threshold_exponent = CTL_LBP_EXPONENT; 10135 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10136 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10137 lbp_ptr->prov_type = SVPD_LBP_THIN; 10138 } 10139 10140 ctl_set_success(ctsio); 10141 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10142 ctsio->be_move_done = ctl_config_move_done; 10143 ctl_datamove((union ctl_io *)ctsio); 10144 return (CTL_RETVAL_COMPLETE); 10145} 10146 10147static int 10148ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10149{ 10150 struct scsi_inquiry *cdb; 10151 int alloc_len, retval; 10152 10153 cdb = (struct scsi_inquiry *)ctsio->cdb; 10154 10155 retval = CTL_RETVAL_COMPLETE; 10156 10157 alloc_len = scsi_2btoul(cdb->length); 10158 10159 switch (cdb->page_code) { 10160 case SVPD_SUPPORTED_PAGES: 10161 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10162 break; 10163 case SVPD_UNIT_SERIAL_NUMBER: 10164 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10165 break; 10166 case SVPD_DEVICE_ID: 10167 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10168 break; 10169 case SVPD_EXTENDED_INQUIRY_DATA: 10170 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10171 break; 10172 case SVPD_MODE_PAGE_POLICY: 10173 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10174 break; 10175 case SVPD_SCSI_PORTS: 10176 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10177 break; 10178 case SVPD_SCSI_TPC: 10179 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10180 break; 10181 case SVPD_BLOCK_LIMITS: 10182 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10183 break; 10184 case SVPD_BDC: 10185 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10186 break; 10187 case SVPD_LBP: 10188 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10189 break; 10190 default: 10191 ctl_set_invalid_field(ctsio, 10192 /*sks_valid*/ 1, 10193 /*command*/ 1, 10194 /*field*/ 2, 10195 /*bit_valid*/ 0, 10196 /*bit*/ 0); 10197 ctl_done((union ctl_io *)ctsio); 10198 retval = CTL_RETVAL_COMPLETE; 10199 break; 10200 } 10201 10202 return (retval); 10203} 10204 10205static int 10206ctl_inquiry_std(struct ctl_scsiio *ctsio) 10207{ 10208 struct scsi_inquiry_data *inq_ptr; 10209 struct scsi_inquiry *cdb; 10210 struct ctl_softc *ctl_softc; 10211 struct ctl_lun *lun; 10212 char *val; 10213 uint32_t alloc_len, data_len; 10214 ctl_port_type port_type; 10215 10216 ctl_softc = control_softc; 10217 10218 /* 10219 * Figure out whether we're talking to a Fibre Channel port or not. 10220 * We treat the ioctl front end, and any SCSI adapters, as packetized 10221 * SCSI front ends. 10222 */ 10223 port_type = ctl_softc->ctl_ports[ 10224 ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]->port_type; 10225 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10226 port_type = CTL_PORT_SCSI; 10227 10228 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10229 cdb = (struct scsi_inquiry *)ctsio->cdb; 10230 alloc_len = scsi_2btoul(cdb->length); 10231 10232 /* 10233 * We malloc the full inquiry data size here and fill it 10234 * in. If the user only asks for less, we'll give him 10235 * that much. 10236 */ 10237 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10238 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10239 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10240 ctsio->kern_sg_entries = 0; 10241 ctsio->kern_data_resid = 0; 10242 ctsio->kern_rel_offset = 0; 10243 10244 if (data_len < alloc_len) { 10245 ctsio->residual = alloc_len - data_len; 10246 ctsio->kern_data_len = data_len; 10247 ctsio->kern_total_len = data_len; 10248 } else { 10249 ctsio->residual = 0; 10250 ctsio->kern_data_len = alloc_len; 10251 ctsio->kern_total_len = alloc_len; 10252 } 10253 10254 /* 10255 * If we have a LUN configured, report it as connected. Otherwise, 10256 * report that it is offline or no device is supported, depending 10257 * on the value of inquiry_pq_no_lun. 10258 * 10259 * According to the spec (SPC-4 r34), the peripheral qualifier 10260 * SID_QUAL_LU_OFFLINE (001b) is used in the following scenario: 10261 * 10262 * "A peripheral device having the specified peripheral device type 10263 * is not connected to this logical unit. However, the device 10264 * server is capable of supporting the specified peripheral device 10265 * type on this logical unit." 10266 * 10267 * According to the same spec, the peripheral qualifier 10268 * SID_QUAL_BAD_LU (011b) is used in this scenario: 10269 * 10270 * "The device server is not capable of supporting a peripheral 10271 * device on this logical unit. For this peripheral qualifier the 10272 * peripheral device type shall be set to 1Fh. All other peripheral 10273 * device type values are reserved for this peripheral qualifier." 10274 * 10275 * Given the text, it would seem that we probably want to report that 10276 * the LUN is offline here. There is no LUN connected, but we can 10277 * support a LUN at the given LUN number. 10278 * 10279 * In the real world, though, it sounds like things are a little 10280 * different: 10281 * 10282 * - Linux, when presented with a LUN with the offline peripheral 10283 * qualifier, will create an sg driver instance for it. So when 10284 * you attach it to CTL, you wind up with a ton of sg driver 10285 * instances. (One for every LUN that Linux bothered to probe.) 10286 * Linux does this despite the fact that it issues a REPORT LUNs 10287 * to LUN 0 to get the inventory of supported LUNs. 10288 * 10289 * - There is other anecdotal evidence (from Emulex folks) about 10290 * arrays that use the offline peripheral qualifier for LUNs that 10291 * are on the "passive" path in an active/passive array. 10292 * 10293 * So the solution is provide a hopefully reasonable default 10294 * (return bad/no LUN) and allow the user to change the behavior 10295 * with a tunable/sysctl variable. 10296 */ 10297 if (lun != NULL) 10298 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10299 lun->be_lun->lun_type; 10300 else if (ctl_softc->inquiry_pq_no_lun == 0) 10301 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10302 else 10303 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10304 10305 /* RMB in byte 2 is 0 */ 10306 inq_ptr->version = SCSI_REV_SPC4; 10307 10308 /* 10309 * According to SAM-3, even if a device only supports a single 10310 * level of LUN addressing, it should still set the HISUP bit: 10311 * 10312 * 4.9.1 Logical unit numbers overview 10313 * 10314 * All logical unit number formats described in this standard are 10315 * hierarchical in structure even when only a single level in that 10316 * hierarchy is used. The HISUP bit shall be set to one in the 10317 * standard INQUIRY data (see SPC-2) when any logical unit number 10318 * format described in this standard is used. Non-hierarchical 10319 * formats are outside the scope of this standard. 10320 * 10321 * Therefore we set the HiSup bit here. 10322 * 10323 * The reponse format is 2, per SPC-3. 10324 */ 10325 inq_ptr->response_format = SID_HiSup | 2; 10326 10327 inq_ptr->additional_length = data_len - 10328 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10329 CTL_DEBUG_PRINT(("additional_length = %d\n", 10330 inq_ptr->additional_length)); 10331 10332 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10333 /* 16 bit addressing */ 10334 if (port_type == CTL_PORT_SCSI) 10335 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10336 /* XXX set the SID_MultiP bit here if we're actually going to 10337 respond on multiple ports */ 10338 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10339 10340 /* 16 bit data bus, synchronous transfers */ 10341 if (port_type == CTL_PORT_SCSI) 10342 inq_ptr->flags = SID_WBus16 | SID_Sync; 10343 /* 10344 * XXX KDM do we want to support tagged queueing on the control 10345 * device at all? 10346 */ 10347 if ((lun == NULL) 10348 || (lun->be_lun->lun_type != T_PROCESSOR)) 10349 inq_ptr->flags |= SID_CmdQue; 10350 /* 10351 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10352 * We have 8 bytes for the vendor name, and 16 bytes for the device 10353 * name and 4 bytes for the revision. 10354 */ 10355 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10356 "vendor")) == NULL) { 10357 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10358 } else { 10359 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10360 strncpy(inq_ptr->vendor, val, 10361 min(sizeof(inq_ptr->vendor), strlen(val))); 10362 } 10363 if (lun == NULL) { 10364 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10365 sizeof(inq_ptr->product)); 10366 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10367 switch (lun->be_lun->lun_type) { 10368 case T_DIRECT: 10369 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10370 sizeof(inq_ptr->product)); 10371 break; 10372 case T_PROCESSOR: 10373 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10374 sizeof(inq_ptr->product)); 10375 break; 10376 default: 10377 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10378 sizeof(inq_ptr->product)); 10379 break; 10380 } 10381 } else { 10382 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10383 strncpy(inq_ptr->product, val, 10384 min(sizeof(inq_ptr->product), strlen(val))); 10385 } 10386 10387 /* 10388 * XXX make this a macro somewhere so it automatically gets 10389 * incremented when we make changes. 10390 */ 10391 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10392 "revision")) == NULL) { 10393 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10394 } else { 10395 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10396 strncpy(inq_ptr->revision, val, 10397 min(sizeof(inq_ptr->revision), strlen(val))); 10398 } 10399 10400 /* 10401 * For parallel SCSI, we support double transition and single 10402 * transition clocking. We also support QAS (Quick Arbitration 10403 * and Selection) and Information Unit transfers on both the 10404 * control and array devices. 10405 */ 10406 if (port_type == CTL_PORT_SCSI) 10407 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10408 SID_SPI_IUS; 10409 10410 /* SAM-5 (no version claimed) */ 10411 scsi_ulto2b(0x00A0, inq_ptr->version1); 10412 /* SPC-4 (no version claimed) */ 10413 scsi_ulto2b(0x0460, inq_ptr->version2); 10414 if (port_type == CTL_PORT_FC) { 10415 /* FCP-2 ANSI INCITS.350:2003 */ 10416 scsi_ulto2b(0x0917, inq_ptr->version3); 10417 } else if (port_type == CTL_PORT_SCSI) { 10418 /* SPI-4 ANSI INCITS.362:200x */ 10419 scsi_ulto2b(0x0B56, inq_ptr->version3); 10420 } else if (port_type == CTL_PORT_ISCSI) { 10421 /* iSCSI (no version claimed) */ 10422 scsi_ulto2b(0x0960, inq_ptr->version3); 10423 } else if (port_type == CTL_PORT_SAS) { 10424 /* SAS (no version claimed) */ 10425 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10426 } 10427 10428 if (lun == NULL) { 10429 /* SBC-4 (no version claimed) */ 10430 scsi_ulto2b(0x0600, inq_ptr->version4); 10431 } else { 10432 switch (lun->be_lun->lun_type) { 10433 case T_DIRECT: 10434 /* SBC-4 (no version claimed) */ 10435 scsi_ulto2b(0x0600, inq_ptr->version4); 10436 break; 10437 case T_PROCESSOR: 10438 default: 10439 break; 10440 } 10441 } 10442 10443 ctl_set_success(ctsio); 10444 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10445 ctsio->be_move_done = ctl_config_move_done; 10446 ctl_datamove((union ctl_io *)ctsio); 10447 return (CTL_RETVAL_COMPLETE); 10448} 10449 10450int 10451ctl_inquiry(struct ctl_scsiio *ctsio) 10452{ 10453 struct scsi_inquiry *cdb; 10454 int retval; 10455 10456 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10457 10458 cdb = (struct scsi_inquiry *)ctsio->cdb; 10459 if (cdb->byte2 & SI_EVPD) 10460 retval = ctl_inquiry_evpd(ctsio); 10461 else if (cdb->page_code == 0) 10462 retval = ctl_inquiry_std(ctsio); 10463 else { 10464 ctl_set_invalid_field(ctsio, 10465 /*sks_valid*/ 1, 10466 /*command*/ 1, 10467 /*field*/ 2, 10468 /*bit_valid*/ 0, 10469 /*bit*/ 0); 10470 ctl_done((union ctl_io *)ctsio); 10471 return (CTL_RETVAL_COMPLETE); 10472 } 10473 10474 return (retval); 10475} 10476 10477/* 10478 * For known CDB types, parse the LBA and length. 10479 */ 10480static int 10481ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10482{ 10483 if (io->io_hdr.io_type != CTL_IO_SCSI) 10484 return (1); 10485 10486 switch (io->scsiio.cdb[0]) { 10487 case COMPARE_AND_WRITE: { 10488 struct scsi_compare_and_write *cdb; 10489 10490 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10491 10492 *lba = scsi_8btou64(cdb->addr); 10493 *len = cdb->length; 10494 break; 10495 } 10496 case READ_6: 10497 case WRITE_6: { 10498 struct scsi_rw_6 *cdb; 10499 10500 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10501 10502 *lba = scsi_3btoul(cdb->addr); 10503 /* only 5 bits are valid in the most significant address byte */ 10504 *lba &= 0x1fffff; 10505 *len = cdb->length; 10506 break; 10507 } 10508 case READ_10: 10509 case WRITE_10: { 10510 struct scsi_rw_10 *cdb; 10511 10512 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10513 10514 *lba = scsi_4btoul(cdb->addr); 10515 *len = scsi_2btoul(cdb->length); 10516 break; 10517 } 10518 case WRITE_VERIFY_10: { 10519 struct scsi_write_verify_10 *cdb; 10520 10521 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10522 10523 *lba = scsi_4btoul(cdb->addr); 10524 *len = scsi_2btoul(cdb->length); 10525 break; 10526 } 10527 case READ_12: 10528 case WRITE_12: { 10529 struct scsi_rw_12 *cdb; 10530 10531 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10532 10533 *lba = scsi_4btoul(cdb->addr); 10534 *len = scsi_4btoul(cdb->length); 10535 break; 10536 } 10537 case WRITE_VERIFY_12: { 10538 struct scsi_write_verify_12 *cdb; 10539 10540 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10541 10542 *lba = scsi_4btoul(cdb->addr); 10543 *len = scsi_4btoul(cdb->length); 10544 break; 10545 } 10546 case READ_16: 10547 case WRITE_16: 10548 case WRITE_ATOMIC_16: { 10549 struct scsi_rw_16 *cdb; 10550 10551 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10552 10553 *lba = scsi_8btou64(cdb->addr); 10554 *len = scsi_4btoul(cdb->length); 10555 break; 10556 } 10557 case WRITE_VERIFY_16: { 10558 struct scsi_write_verify_16 *cdb; 10559 10560 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10561 10562 *lba = scsi_8btou64(cdb->addr); 10563 *len = scsi_4btoul(cdb->length); 10564 break; 10565 } 10566 case WRITE_SAME_10: { 10567 struct scsi_write_same_10 *cdb; 10568 10569 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10570 10571 *lba = scsi_4btoul(cdb->addr); 10572 *len = scsi_2btoul(cdb->length); 10573 break; 10574 } 10575 case WRITE_SAME_16: { 10576 struct scsi_write_same_16 *cdb; 10577 10578 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10579 10580 *lba = scsi_8btou64(cdb->addr); 10581 *len = scsi_4btoul(cdb->length); 10582 break; 10583 } 10584 case VERIFY_10: { 10585 struct scsi_verify_10 *cdb; 10586 10587 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10588 10589 *lba = scsi_4btoul(cdb->addr); 10590 *len = scsi_2btoul(cdb->length); 10591 break; 10592 } 10593 case VERIFY_12: { 10594 struct scsi_verify_12 *cdb; 10595 10596 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10597 10598 *lba = scsi_4btoul(cdb->addr); 10599 *len = scsi_4btoul(cdb->length); 10600 break; 10601 } 10602 case VERIFY_16: { 10603 struct scsi_verify_16 *cdb; 10604 10605 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10606 10607 *lba = scsi_8btou64(cdb->addr); 10608 *len = scsi_4btoul(cdb->length); 10609 break; 10610 } 10611 case UNMAP: { 10612 *lba = 0; 10613 *len = UINT64_MAX; 10614 break; 10615 } 10616 default: 10617 return (1); 10618 break; /* NOTREACHED */ 10619 } 10620 10621 return (0); 10622} 10623 10624static ctl_action 10625ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2) 10626{ 10627 uint64_t endlba1, endlba2; 10628 10629 endlba1 = lba1 + len1 - 1; 10630 endlba2 = lba2 + len2 - 1; 10631 10632 if ((endlba1 < lba2) 10633 || (endlba2 < lba1)) 10634 return (CTL_ACTION_PASS); 10635 else 10636 return (CTL_ACTION_BLOCK); 10637} 10638 10639static int 10640ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10641{ 10642 struct ctl_ptr_len_flags *ptrlen; 10643 struct scsi_unmap_desc *buf, *end, *range; 10644 uint64_t lba; 10645 uint32_t len; 10646 10647 /* If not UNMAP -- go other way. */ 10648 if (io->io_hdr.io_type != CTL_IO_SCSI || 10649 io->scsiio.cdb[0] != UNMAP) 10650 return (CTL_ACTION_ERROR); 10651 10652 /* If UNMAP without data -- block and wait for data. */ 10653 ptrlen = (struct ctl_ptr_len_flags *) 10654 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10655 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10656 ptrlen->ptr == NULL) 10657 return (CTL_ACTION_BLOCK); 10658 10659 /* UNMAP with data -- check for collision. */ 10660 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10661 end = buf + ptrlen->len / sizeof(*buf); 10662 for (range = buf; range < end; range++) { 10663 lba = scsi_8btou64(range->lba); 10664 len = scsi_4btoul(range->length); 10665 if ((lba < lba2 + len2) && (lba + len > lba2)) 10666 return (CTL_ACTION_BLOCK); 10667 } 10668 return (CTL_ACTION_PASS); 10669} 10670 10671static ctl_action 10672ctl_extent_check(union ctl_io *io1, union ctl_io *io2) 10673{ 10674 uint64_t lba1, lba2; 10675 uint64_t len1, len2; 10676 int retval; 10677 10678 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10679 return (CTL_ACTION_ERROR); 10680 10681 retval = ctl_extent_check_unmap(io2, lba1, len1); 10682 if (retval != CTL_ACTION_ERROR) 10683 return (retval); 10684 10685 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10686 return (CTL_ACTION_ERROR); 10687 10688 return (ctl_extent_check_lba(lba1, len1, lba2, len2)); 10689} 10690 10691static ctl_action 10692ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10693 union ctl_io *ooa_io) 10694{ 10695 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10696 ctl_serialize_action *serialize_row; 10697 10698 /* 10699 * The initiator attempted multiple untagged commands at the same 10700 * time. Can't do that. 10701 */ 10702 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10703 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10704 && ((pending_io->io_hdr.nexus.targ_port == 10705 ooa_io->io_hdr.nexus.targ_port) 10706 && (pending_io->io_hdr.nexus.initid.id == 10707 ooa_io->io_hdr.nexus.initid.id)) 10708 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10709 return (CTL_ACTION_OVERLAP); 10710 10711 /* 10712 * The initiator attempted to send multiple tagged commands with 10713 * the same ID. (It's fine if different initiators have the same 10714 * tag ID.) 10715 * 10716 * Even if all of those conditions are true, we don't kill the I/O 10717 * if the command ahead of us has been aborted. We won't end up 10718 * sending it to the FETD, and it's perfectly legal to resend a 10719 * command with the same tag number as long as the previous 10720 * instance of this tag number has been aborted somehow. 10721 */ 10722 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10723 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10724 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10725 && ((pending_io->io_hdr.nexus.targ_port == 10726 ooa_io->io_hdr.nexus.targ_port) 10727 && (pending_io->io_hdr.nexus.initid.id == 10728 ooa_io->io_hdr.nexus.initid.id)) 10729 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10730 return (CTL_ACTION_OVERLAP_TAG); 10731 10732 /* 10733 * If we get a head of queue tag, SAM-3 says that we should 10734 * immediately execute it. 10735 * 10736 * What happens if this command would normally block for some other 10737 * reason? e.g. a request sense with a head of queue tag 10738 * immediately after a write. Normally that would block, but this 10739 * will result in its getting executed immediately... 10740 * 10741 * We currently return "pass" instead of "skip", so we'll end up 10742 * going through the rest of the queue to check for overlapped tags. 10743 * 10744 * XXX KDM check for other types of blockage first?? 10745 */ 10746 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10747 return (CTL_ACTION_PASS); 10748 10749 /* 10750 * Ordered tags have to block until all items ahead of them 10751 * have completed. If we get called with an ordered tag, we always 10752 * block, if something else is ahead of us in the queue. 10753 */ 10754 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 10755 return (CTL_ACTION_BLOCK); 10756 10757 /* 10758 * Simple tags get blocked until all head of queue and ordered tags 10759 * ahead of them have completed. I'm lumping untagged commands in 10760 * with simple tags here. XXX KDM is that the right thing to do? 10761 */ 10762 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10763 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 10764 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10765 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 10766 return (CTL_ACTION_BLOCK); 10767 10768 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 10769 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 10770 10771 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 10772 10773 switch (serialize_row[pending_entry->seridx]) { 10774 case CTL_SER_BLOCK: 10775 return (CTL_ACTION_BLOCK); 10776 case CTL_SER_EXTENT: 10777 return (ctl_extent_check(pending_io, ooa_io)); 10778 case CTL_SER_EXTENTOPT: 10779 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 10780 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 10781 return (ctl_extent_check(pending_io, ooa_io)); 10782 /* FALLTHROUGH */ 10783 case CTL_SER_PASS: 10784 return (CTL_ACTION_PASS); 10785 case CTL_SER_BLOCKOPT: 10786 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 10787 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 10788 return (CTL_ACTION_BLOCK); 10789 return (CTL_ACTION_PASS); 10790 case CTL_SER_SKIP: 10791 return (CTL_ACTION_SKIP); 10792 default: 10793 panic("invalid serialization value %d", 10794 serialize_row[pending_entry->seridx]); 10795 } 10796 10797 return (CTL_ACTION_ERROR); 10798} 10799 10800/* 10801 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 10802 * Assumptions: 10803 * - pending_io is generally either incoming, or on the blocked queue 10804 * - starting I/O is the I/O we want to start the check with. 10805 */ 10806static ctl_action 10807ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 10808 union ctl_io *starting_io) 10809{ 10810 union ctl_io *ooa_io; 10811 ctl_action action; 10812 10813 mtx_assert(&lun->lun_lock, MA_OWNED); 10814 10815 /* 10816 * Run back along the OOA queue, starting with the current 10817 * blocked I/O and going through every I/O before it on the 10818 * queue. If starting_io is NULL, we'll just end up returning 10819 * CTL_ACTION_PASS. 10820 */ 10821 for (ooa_io = starting_io; ooa_io != NULL; 10822 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 10823 ooa_links)){ 10824 10825 /* 10826 * This routine just checks to see whether 10827 * cur_blocked is blocked by ooa_io, which is ahead 10828 * of it in the queue. It doesn't queue/dequeue 10829 * cur_blocked. 10830 */ 10831 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 10832 switch (action) { 10833 case CTL_ACTION_BLOCK: 10834 case CTL_ACTION_OVERLAP: 10835 case CTL_ACTION_OVERLAP_TAG: 10836 case CTL_ACTION_SKIP: 10837 case CTL_ACTION_ERROR: 10838 return (action); 10839 break; /* NOTREACHED */ 10840 case CTL_ACTION_PASS: 10841 break; 10842 default: 10843 panic("invalid action %d", action); 10844 break; /* NOTREACHED */ 10845 } 10846 } 10847 10848 return (CTL_ACTION_PASS); 10849} 10850 10851/* 10852 * Assumptions: 10853 * - An I/O has just completed, and has been removed from the per-LUN OOA 10854 * queue, so some items on the blocked queue may now be unblocked. 10855 */ 10856static int 10857ctl_check_blocked(struct ctl_lun *lun) 10858{ 10859 union ctl_io *cur_blocked, *next_blocked; 10860 10861 mtx_assert(&lun->lun_lock, MA_OWNED); 10862 10863 /* 10864 * Run forward from the head of the blocked queue, checking each 10865 * entry against the I/Os prior to it on the OOA queue to see if 10866 * there is still any blockage. 10867 * 10868 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 10869 * with our removing a variable on it while it is traversing the 10870 * list. 10871 */ 10872 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 10873 cur_blocked != NULL; cur_blocked = next_blocked) { 10874 union ctl_io *prev_ooa; 10875 ctl_action action; 10876 10877 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 10878 blocked_links); 10879 10880 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 10881 ctl_ooaq, ooa_links); 10882 10883 /* 10884 * If cur_blocked happens to be the first item in the OOA 10885 * queue now, prev_ooa will be NULL, and the action 10886 * returned will just be CTL_ACTION_PASS. 10887 */ 10888 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 10889 10890 switch (action) { 10891 case CTL_ACTION_BLOCK: 10892 /* Nothing to do here, still blocked */ 10893 break; 10894 case CTL_ACTION_OVERLAP: 10895 case CTL_ACTION_OVERLAP_TAG: 10896 /* 10897 * This shouldn't happen! In theory we've already 10898 * checked this command for overlap... 10899 */ 10900 break; 10901 case CTL_ACTION_PASS: 10902 case CTL_ACTION_SKIP: { 10903 struct ctl_softc *softc; 10904 const struct ctl_cmd_entry *entry; 10905 int isc_retval; 10906 10907 /* 10908 * The skip case shouldn't happen, this transaction 10909 * should have never made it onto the blocked queue. 10910 */ 10911 /* 10912 * This I/O is no longer blocked, we can remove it 10913 * from the blocked queue. Since this is a TAILQ 10914 * (doubly linked list), we can do O(1) removals 10915 * from any place on the list. 10916 */ 10917 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 10918 blocked_links); 10919 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 10920 10921 if (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC){ 10922 /* 10923 * Need to send IO back to original side to 10924 * run 10925 */ 10926 union ctl_ha_msg msg_info; 10927 10928 msg_info.hdr.original_sc = 10929 cur_blocked->io_hdr.original_sc; 10930 msg_info.hdr.serializing_sc = cur_blocked; 10931 msg_info.hdr.msg_type = CTL_MSG_R2R; 10932 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 10933 &msg_info, sizeof(msg_info), 0)) > 10934 CTL_HA_STATUS_SUCCESS) { 10935 printf("CTL:Check Blocked error from " 10936 "ctl_ha_msg_send %d\n", 10937 isc_retval); 10938 } 10939 break; 10940 } 10941 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 10942 softc = control_softc; 10943 10944 /* 10945 * Check this I/O for LUN state changes that may 10946 * have happened while this command was blocked. 10947 * The LUN state may have been changed by a command 10948 * ahead of us in the queue, so we need to re-check 10949 * for any states that can be caused by SCSI 10950 * commands. 10951 */ 10952 if (ctl_scsiio_lun_check(softc, lun, entry, 10953 &cur_blocked->scsiio) == 0) { 10954 cur_blocked->io_hdr.flags |= 10955 CTL_FLAG_IS_WAS_ON_RTR; 10956 ctl_enqueue_rtr(cur_blocked); 10957 } else 10958 ctl_done(cur_blocked); 10959 break; 10960 } 10961 default: 10962 /* 10963 * This probably shouldn't happen -- we shouldn't 10964 * get CTL_ACTION_ERROR, or anything else. 10965 */ 10966 break; 10967 } 10968 } 10969 10970 return (CTL_RETVAL_COMPLETE); 10971} 10972 10973/* 10974 * This routine (with one exception) checks LUN flags that can be set by 10975 * commands ahead of us in the OOA queue. These flags have to be checked 10976 * when a command initially comes in, and when we pull a command off the 10977 * blocked queue and are preparing to execute it. The reason we have to 10978 * check these flags for commands on the blocked queue is that the LUN 10979 * state may have been changed by a command ahead of us while we're on the 10980 * blocked queue. 10981 * 10982 * Ordering is somewhat important with these checks, so please pay 10983 * careful attention to the placement of any new checks. 10984 */ 10985static int 10986ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 10987 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 10988{ 10989 int retval; 10990 uint32_t residx; 10991 10992 retval = 0; 10993 10994 mtx_assert(&lun->lun_lock, MA_OWNED); 10995 10996 /* 10997 * If this shelf is a secondary shelf controller, we have to reject 10998 * any media access commands. 10999 */ 11000 if ((ctl_softc->flags & CTL_FLAG_ACTIVE_SHELF) == 0 && 11001 (entry->flags & CTL_CMD_FLAG_OK_ON_SECONDARY) == 0) { 11002 ctl_set_lun_standby(ctsio); 11003 retval = 1; 11004 goto bailout; 11005 } 11006 11007 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11008 if (lun->flags & CTL_LUN_READONLY) { 11009 ctl_set_sense(ctsio, /*current_error*/ 1, 11010 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11011 /*asc*/ 0x27, /*ascq*/ 0x01, SSD_ELEM_NONE); 11012 retval = 1; 11013 goto bailout; 11014 } 11015 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT] 11016 .eca_and_aen & SCP_SWP) != 0) { 11017 ctl_set_sense(ctsio, /*current_error*/ 1, 11018 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11019 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11020 retval = 1; 11021 goto bailout; 11022 } 11023 } 11024 11025 /* 11026 * Check for a reservation conflict. If this command isn't allowed 11027 * even on reserved LUNs, and if this initiator isn't the one who 11028 * reserved us, reject the command with a reservation conflict. 11029 */ 11030 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 11031 if ((lun->flags & CTL_LUN_RESERVED) 11032 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11033 if (lun->res_idx != residx) { 11034 ctl_set_reservation_conflict(ctsio); 11035 retval = 1; 11036 goto bailout; 11037 } 11038 } 11039 11040 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0 || 11041 (entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV)) { 11042 /* No reservation or command is allowed. */; 11043 } else if ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_WRESV) && 11044 (lun->res_type == SPR_TYPE_WR_EX || 11045 lun->res_type == SPR_TYPE_WR_EX_RO || 11046 lun->res_type == SPR_TYPE_WR_EX_AR)) { 11047 /* The command is allowed for Write Exclusive resv. */; 11048 } else { 11049 /* 11050 * if we aren't registered or it's a res holder type 11051 * reservation and this isn't the res holder then set a 11052 * conflict. 11053 */ 11054 if (lun->pr_keys[residx] == 0 11055 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 11056 ctl_set_reservation_conflict(ctsio); 11057 retval = 1; 11058 goto bailout; 11059 } 11060 11061 } 11062 11063 if ((lun->flags & CTL_LUN_OFFLINE) 11064 && ((entry->flags & CTL_CMD_FLAG_OK_ON_OFFLINE) == 0)) { 11065 ctl_set_lun_not_ready(ctsio); 11066 retval = 1; 11067 goto bailout; 11068 } 11069 11070 /* 11071 * If the LUN is stopped, see if this particular command is allowed 11072 * for a stopped lun. Otherwise, reject it with 0x04,0x02. 11073 */ 11074 if ((lun->flags & CTL_LUN_STOPPED) 11075 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 11076 /* "Logical unit not ready, initializing cmd. required" */ 11077 ctl_set_lun_stopped(ctsio); 11078 retval = 1; 11079 goto bailout; 11080 } 11081 11082 if ((lun->flags & CTL_LUN_INOPERABLE) 11083 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 11084 /* "Medium format corrupted" */ 11085 ctl_set_medium_format_corrupted(ctsio); 11086 retval = 1; 11087 goto bailout; 11088 } 11089 11090bailout: 11091 return (retval); 11092 11093} 11094 11095static void 11096ctl_failover_io(union ctl_io *io, int have_lock) 11097{ 11098 ctl_set_busy(&io->scsiio); 11099 ctl_done(io); 11100} 11101 11102static void 11103ctl_failover(void) 11104{ 11105 struct ctl_lun *lun; 11106 struct ctl_softc *ctl_softc; 11107 union ctl_io *next_io, *pending_io; 11108 union ctl_io *io; 11109 int lun_idx; 11110 int i; 11111 11112 ctl_softc = control_softc; 11113 11114 mtx_lock(&ctl_softc->ctl_lock); 11115 /* 11116 * Remove any cmds from the other SC from the rtr queue. These 11117 * will obviously only be for LUNs for which we're the primary. 11118 * We can't send status or get/send data for these commands. 11119 * Since they haven't been executed yet, we can just remove them. 11120 * We'll either abort them or delete them below, depending on 11121 * which HA mode we're in. 11122 */ 11123#ifdef notyet 11124 mtx_lock(&ctl_softc->queue_lock); 11125 for (io = (union ctl_io *)STAILQ_FIRST(&ctl_softc->rtr_queue); 11126 io != NULL; io = next_io) { 11127 next_io = (union ctl_io *)STAILQ_NEXT(&io->io_hdr, links); 11128 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11129 STAILQ_REMOVE(&ctl_softc->rtr_queue, &io->io_hdr, 11130 ctl_io_hdr, links); 11131 } 11132 mtx_unlock(&ctl_softc->queue_lock); 11133#endif 11134 11135 for (lun_idx=0; lun_idx < ctl_softc->num_luns; lun_idx++) { 11136 lun = ctl_softc->ctl_luns[lun_idx]; 11137 if (lun==NULL) 11138 continue; 11139 11140 /* 11141 * Processor LUNs are primary on both sides. 11142 * XXX will this always be true? 11143 */ 11144 if (lun->be_lun->lun_type == T_PROCESSOR) 11145 continue; 11146 11147 if ((lun->flags & CTL_LUN_PRIMARY_SC) 11148 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11149 printf("FAILOVER: primary lun %d\n", lun_idx); 11150 /* 11151 * Remove all commands from the other SC. First from the 11152 * blocked queue then from the ooa queue. Once we have 11153 * removed them. Call ctl_check_blocked to see if there 11154 * is anything that can run. 11155 */ 11156 for (io = (union ctl_io *)TAILQ_FIRST( 11157 &lun->blocked_queue); io != NULL; io = next_io) { 11158 11159 next_io = (union ctl_io *)TAILQ_NEXT( 11160 &io->io_hdr, blocked_links); 11161 11162 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11163 TAILQ_REMOVE(&lun->blocked_queue, 11164 &io->io_hdr,blocked_links); 11165 io->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11166 TAILQ_REMOVE(&lun->ooa_queue, 11167 &io->io_hdr, ooa_links); 11168 11169 ctl_free_io(io); 11170 } 11171 } 11172 11173 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11174 io != NULL; io = next_io) { 11175 11176 next_io = (union ctl_io *)TAILQ_NEXT( 11177 &io->io_hdr, ooa_links); 11178 11179 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11180 11181 TAILQ_REMOVE(&lun->ooa_queue, 11182 &io->io_hdr, 11183 ooa_links); 11184 11185 ctl_free_io(io); 11186 } 11187 } 11188 ctl_check_blocked(lun); 11189 } else if ((lun->flags & CTL_LUN_PRIMARY_SC) 11190 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11191 11192 printf("FAILOVER: primary lun %d\n", lun_idx); 11193 /* 11194 * Abort all commands from the other SC. We can't 11195 * send status back for them now. These should get 11196 * cleaned up when they are completed or come out 11197 * for a datamove operation. 11198 */ 11199 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11200 io != NULL; io = next_io) { 11201 next_io = (union ctl_io *)TAILQ_NEXT( 11202 &io->io_hdr, ooa_links); 11203 11204 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11205 io->io_hdr.flags |= CTL_FLAG_ABORT; 11206 } 11207 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11208 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11209 11210 printf("FAILOVER: secondary lun %d\n", lun_idx); 11211 11212 lun->flags |= CTL_LUN_PRIMARY_SC; 11213 11214 /* 11215 * We send all I/O that was sent to this controller 11216 * and redirected to the other side back with 11217 * busy status, and have the initiator retry it. 11218 * Figuring out how much data has been transferred, 11219 * etc. and picking up where we left off would be 11220 * very tricky. 11221 * 11222 * XXX KDM need to remove I/O from the blocked 11223 * queue as well! 11224 */ 11225 for (pending_io = (union ctl_io *)TAILQ_FIRST( 11226 &lun->ooa_queue); pending_io != NULL; 11227 pending_io = next_io) { 11228 11229 next_io = (union ctl_io *)TAILQ_NEXT( 11230 &pending_io->io_hdr, ooa_links); 11231 11232 pending_io->io_hdr.flags &= 11233 ~CTL_FLAG_SENT_2OTHER_SC; 11234 11235 if (pending_io->io_hdr.flags & 11236 CTL_FLAG_IO_ACTIVE) { 11237 pending_io->io_hdr.flags |= 11238 CTL_FLAG_FAILOVER; 11239 } else { 11240 ctl_set_busy(&pending_io->scsiio); 11241 ctl_done(pending_io); 11242 } 11243 } 11244 11245 /* 11246 * Build Unit Attention 11247 */ 11248 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11249 lun->pending_ua[i] |= 11250 CTL_UA_ASYM_ACC_CHANGE; 11251 } 11252 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11253 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11254 printf("FAILOVER: secondary lun %d\n", lun_idx); 11255 /* 11256 * if the first io on the OOA is not on the RtR queue 11257 * add it. 11258 */ 11259 lun->flags |= CTL_LUN_PRIMARY_SC; 11260 11261 pending_io = (union ctl_io *)TAILQ_FIRST( 11262 &lun->ooa_queue); 11263 if (pending_io==NULL) { 11264 printf("Nothing on OOA queue\n"); 11265 continue; 11266 } 11267 11268 pending_io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11269 if ((pending_io->io_hdr.flags & 11270 CTL_FLAG_IS_WAS_ON_RTR) == 0) { 11271 pending_io->io_hdr.flags |= 11272 CTL_FLAG_IS_WAS_ON_RTR; 11273 ctl_enqueue_rtr(pending_io); 11274 } 11275#if 0 11276 else 11277 { 11278 printf("Tag 0x%04x is running\n", 11279 pending_io->scsiio.tag_num); 11280 } 11281#endif 11282 11283 next_io = (union ctl_io *)TAILQ_NEXT( 11284 &pending_io->io_hdr, ooa_links); 11285 for (pending_io=next_io; pending_io != NULL; 11286 pending_io = next_io) { 11287 pending_io->io_hdr.flags &= 11288 ~CTL_FLAG_SENT_2OTHER_SC; 11289 next_io = (union ctl_io *)TAILQ_NEXT( 11290 &pending_io->io_hdr, ooa_links); 11291 if (pending_io->io_hdr.flags & 11292 CTL_FLAG_IS_WAS_ON_RTR) { 11293#if 0 11294 printf("Tag 0x%04x is running\n", 11295 pending_io->scsiio.tag_num); 11296#endif 11297 continue; 11298 } 11299 11300 switch (ctl_check_ooa(lun, pending_io, 11301 (union ctl_io *)TAILQ_PREV( 11302 &pending_io->io_hdr, ctl_ooaq, 11303 ooa_links))) { 11304 11305 case CTL_ACTION_BLOCK: 11306 TAILQ_INSERT_TAIL(&lun->blocked_queue, 11307 &pending_io->io_hdr, 11308 blocked_links); 11309 pending_io->io_hdr.flags |= 11310 CTL_FLAG_BLOCKED; 11311 break; 11312 case CTL_ACTION_PASS: 11313 case CTL_ACTION_SKIP: 11314 pending_io->io_hdr.flags |= 11315 CTL_FLAG_IS_WAS_ON_RTR; 11316 ctl_enqueue_rtr(pending_io); 11317 break; 11318 case CTL_ACTION_OVERLAP: 11319 ctl_set_overlapped_cmd( 11320 (struct ctl_scsiio *)pending_io); 11321 ctl_done(pending_io); 11322 break; 11323 case CTL_ACTION_OVERLAP_TAG: 11324 ctl_set_overlapped_tag( 11325 (struct ctl_scsiio *)pending_io, 11326 pending_io->scsiio.tag_num & 0xff); 11327 ctl_done(pending_io); 11328 break; 11329 case CTL_ACTION_ERROR: 11330 default: 11331 ctl_set_internal_failure( 11332 (struct ctl_scsiio *)pending_io, 11333 0, // sks_valid 11334 0); //retry count 11335 ctl_done(pending_io); 11336 break; 11337 } 11338 } 11339 11340 /* 11341 * Build Unit Attention 11342 */ 11343 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11344 lun->pending_ua[i] |= 11345 CTL_UA_ASYM_ACC_CHANGE; 11346 } 11347 } else { 11348 panic("Unhandled HA mode failover, LUN flags = %#x, " 11349 "ha_mode = #%x", lun->flags, ctl_softc->ha_mode); 11350 } 11351 } 11352 ctl_pause_rtr = 0; 11353 mtx_unlock(&ctl_softc->ctl_lock); 11354} 11355 11356static int 11357ctl_scsiio_precheck(struct ctl_softc *ctl_softc, struct ctl_scsiio *ctsio) 11358{ 11359 struct ctl_lun *lun; 11360 const struct ctl_cmd_entry *entry; 11361 uint32_t initidx, targ_lun; 11362 int retval; 11363 11364 retval = 0; 11365 11366 lun = NULL; 11367 11368 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11369 if ((targ_lun < CTL_MAX_LUNS) 11370 && ((lun = ctl_softc->ctl_luns[targ_lun]) != NULL)) { 11371 /* 11372 * If the LUN is invalid, pretend that it doesn't exist. 11373 * It will go away as soon as all pending I/O has been 11374 * completed. 11375 */ 11376 mtx_lock(&lun->lun_lock); 11377 if (lun->flags & CTL_LUN_DISABLED) { 11378 mtx_unlock(&lun->lun_lock); 11379 lun = NULL; 11380 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11381 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11382 } else { 11383 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11384 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11385 lun->be_lun; 11386 if (lun->be_lun->lun_type == T_PROCESSOR) { 11387 ctsio->io_hdr.flags |= CTL_FLAG_CONTROL_DEV; 11388 } 11389 11390 /* 11391 * Every I/O goes into the OOA queue for a 11392 * particular LUN, and stays there until completion. 11393 */ 11394 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11395 ooa_links); 11396 } 11397 } else { 11398 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11399 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11400 } 11401 11402 /* Get command entry and return error if it is unsuppotyed. */ 11403 entry = ctl_validate_command(ctsio); 11404 if (entry == NULL) { 11405 if (lun) 11406 mtx_unlock(&lun->lun_lock); 11407 return (retval); 11408 } 11409 11410 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11411 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11412 11413 /* 11414 * Check to see whether we can send this command to LUNs that don't 11415 * exist. This should pretty much only be the case for inquiry 11416 * and request sense. Further checks, below, really require having 11417 * a LUN, so we can't really check the command anymore. Just put 11418 * it on the rtr queue. 11419 */ 11420 if (lun == NULL) { 11421 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) { 11422 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11423 ctl_enqueue_rtr((union ctl_io *)ctsio); 11424 return (retval); 11425 } 11426 11427 ctl_set_unsupported_lun(ctsio); 11428 ctl_done((union ctl_io *)ctsio); 11429 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11430 return (retval); 11431 } else { 11432 /* 11433 * Make sure we support this particular command on this LUN. 11434 * e.g., we don't support writes to the control LUN. 11435 */ 11436 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11437 mtx_unlock(&lun->lun_lock); 11438 ctl_set_invalid_opcode(ctsio); 11439 ctl_done((union ctl_io *)ctsio); 11440 return (retval); 11441 } 11442 } 11443 11444 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11445 11446#ifdef CTL_WITH_CA 11447 /* 11448 * If we've got a request sense, it'll clear the contingent 11449 * allegiance condition. Otherwise, if we have a CA condition for 11450 * this initiator, clear it, because it sent down a command other 11451 * than request sense. 11452 */ 11453 if ((ctsio->cdb[0] != REQUEST_SENSE) 11454 && (ctl_is_set(lun->have_ca, initidx))) 11455 ctl_clear_mask(lun->have_ca, initidx); 11456#endif 11457 11458 /* 11459 * If the command has this flag set, it handles its own unit 11460 * attention reporting, we shouldn't do anything. Otherwise we 11461 * check for any pending unit attentions, and send them back to the 11462 * initiator. We only do this when a command initially comes in, 11463 * not when we pull it off the blocked queue. 11464 * 11465 * According to SAM-3, section 5.3.2, the order that things get 11466 * presented back to the host is basically unit attentions caused 11467 * by some sort of reset event, busy status, reservation conflicts 11468 * or task set full, and finally any other status. 11469 * 11470 * One issue here is that some of the unit attentions we report 11471 * don't fall into the "reset" category (e.g. "reported luns data 11472 * has changed"). So reporting it here, before the reservation 11473 * check, may be technically wrong. I guess the only thing to do 11474 * would be to check for and report the reset events here, and then 11475 * check for the other unit attention types after we check for a 11476 * reservation conflict. 11477 * 11478 * XXX KDM need to fix this 11479 */ 11480 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11481 ctl_ua_type ua_type; 11482 11483 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 11484 scsi_sense_data_type sense_format; 11485 11486 if (lun != NULL) 11487 sense_format = (lun->flags & 11488 CTL_LUN_SENSE_DESC) ? SSD_TYPE_DESC : 11489 SSD_TYPE_FIXED; 11490 else 11491 sense_format = SSD_TYPE_FIXED; 11492 11493 ua_type = ctl_build_ua(&lun->pending_ua[initidx], 11494 &ctsio->sense_data, sense_format); 11495 if (ua_type != CTL_UA_NONE) { 11496 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11497 ctsio->io_hdr.status = CTL_SCSI_ERROR | 11498 CTL_AUTOSENSE; 11499 ctsio->sense_len = SSD_FULL_SIZE; 11500 mtx_unlock(&lun->lun_lock); 11501 ctl_done((union ctl_io *)ctsio); 11502 return (retval); 11503 } 11504 } 11505 } 11506 11507 11508 if (ctl_scsiio_lun_check(ctl_softc, lun, entry, ctsio) != 0) { 11509 mtx_unlock(&lun->lun_lock); 11510 ctl_done((union ctl_io *)ctsio); 11511 return (retval); 11512 } 11513 11514 /* 11515 * XXX CHD this is where we want to send IO to other side if 11516 * this LUN is secondary on this SC. We will need to make a copy 11517 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11518 * the copy we send as FROM_OTHER. 11519 * We also need to stuff the address of the original IO so we can 11520 * find it easily. Something similar will need be done on the other 11521 * side so when we are done we can find the copy. 11522 */ 11523 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11524 union ctl_ha_msg msg_info; 11525 int isc_retval; 11526 11527 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11528 11529 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11530 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11531#if 0 11532 printf("1. ctsio %p\n", ctsio); 11533#endif 11534 msg_info.hdr.serializing_sc = NULL; 11535 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11536 msg_info.scsi.tag_num = ctsio->tag_num; 11537 msg_info.scsi.tag_type = ctsio->tag_type; 11538 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11539 11540 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11541 11542 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11543 (void *)&msg_info, sizeof(msg_info), 0)) > 11544 CTL_HA_STATUS_SUCCESS) { 11545 printf("CTL:precheck, ctl_ha_msg_send returned %d\n", 11546 isc_retval); 11547 printf("CTL:opcode is %x\n", ctsio->cdb[0]); 11548 } else { 11549#if 0 11550 printf("CTL:Precheck sent msg, opcode is %x\n",opcode); 11551#endif 11552 } 11553 11554 /* 11555 * XXX KDM this I/O is off the incoming queue, but hasn't 11556 * been inserted on any other queue. We may need to come 11557 * up with a holding queue while we wait for serialization 11558 * so that we have an idea of what we're waiting for from 11559 * the other side. 11560 */ 11561 mtx_unlock(&lun->lun_lock); 11562 return (retval); 11563 } 11564 11565 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11566 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11567 ctl_ooaq, ooa_links))) { 11568 case CTL_ACTION_BLOCK: 11569 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11570 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11571 blocked_links); 11572 mtx_unlock(&lun->lun_lock); 11573 return (retval); 11574 case CTL_ACTION_PASS: 11575 case CTL_ACTION_SKIP: 11576 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11577 mtx_unlock(&lun->lun_lock); 11578 ctl_enqueue_rtr((union ctl_io *)ctsio); 11579 break; 11580 case CTL_ACTION_OVERLAP: 11581 mtx_unlock(&lun->lun_lock); 11582 ctl_set_overlapped_cmd(ctsio); 11583 ctl_done((union ctl_io *)ctsio); 11584 break; 11585 case CTL_ACTION_OVERLAP_TAG: 11586 mtx_unlock(&lun->lun_lock); 11587 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11588 ctl_done((union ctl_io *)ctsio); 11589 break; 11590 case CTL_ACTION_ERROR: 11591 default: 11592 mtx_unlock(&lun->lun_lock); 11593 ctl_set_internal_failure(ctsio, 11594 /*sks_valid*/ 0, 11595 /*retry_count*/ 0); 11596 ctl_done((union ctl_io *)ctsio); 11597 break; 11598 } 11599 return (retval); 11600} 11601 11602const struct ctl_cmd_entry * 11603ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11604{ 11605 const struct ctl_cmd_entry *entry; 11606 int service_action; 11607 11608 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11609 if (sa) 11610 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11611 if (entry->flags & CTL_CMD_FLAG_SA5) { 11612 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11613 entry = &((const struct ctl_cmd_entry *) 11614 entry->execute)[service_action]; 11615 } 11616 return (entry); 11617} 11618 11619const struct ctl_cmd_entry * 11620ctl_validate_command(struct ctl_scsiio *ctsio) 11621{ 11622 const struct ctl_cmd_entry *entry; 11623 int i, sa; 11624 uint8_t diff; 11625 11626 entry = ctl_get_cmd_entry(ctsio, &sa); 11627 if (entry->execute == NULL) { 11628 if (sa) 11629 ctl_set_invalid_field(ctsio, 11630 /*sks_valid*/ 1, 11631 /*command*/ 1, 11632 /*field*/ 1, 11633 /*bit_valid*/ 1, 11634 /*bit*/ 4); 11635 else 11636 ctl_set_invalid_opcode(ctsio); 11637 ctl_done((union ctl_io *)ctsio); 11638 return (NULL); 11639 } 11640 KASSERT(entry->length > 0, 11641 ("Not defined length for command 0x%02x/0x%02x", 11642 ctsio->cdb[0], ctsio->cdb[1])); 11643 for (i = 1; i < entry->length; i++) { 11644 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11645 if (diff == 0) 11646 continue; 11647 ctl_set_invalid_field(ctsio, 11648 /*sks_valid*/ 1, 11649 /*command*/ 1, 11650 /*field*/ i, 11651 /*bit_valid*/ 1, 11652 /*bit*/ fls(diff) - 1); 11653 ctl_done((union ctl_io *)ctsio); 11654 return (NULL); 11655 } 11656 return (entry); 11657} 11658 11659static int 11660ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11661{ 11662 11663 switch (lun_type) { 11664 case T_PROCESSOR: 11665 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) && 11666 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11667 return (0); 11668 break; 11669 case T_DIRECT: 11670 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) && 11671 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11672 return (0); 11673 break; 11674 default: 11675 return (0); 11676 } 11677 return (1); 11678} 11679 11680static int 11681ctl_scsiio(struct ctl_scsiio *ctsio) 11682{ 11683 int retval; 11684 const struct ctl_cmd_entry *entry; 11685 11686 retval = CTL_RETVAL_COMPLETE; 11687 11688 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11689 11690 entry = ctl_get_cmd_entry(ctsio, NULL); 11691 11692 /* 11693 * If this I/O has been aborted, just send it straight to 11694 * ctl_done() without executing it. 11695 */ 11696 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11697 ctl_done((union ctl_io *)ctsio); 11698 goto bailout; 11699 } 11700 11701 /* 11702 * All the checks should have been handled by ctl_scsiio_precheck(). 11703 * We should be clear now to just execute the I/O. 11704 */ 11705 retval = entry->execute(ctsio); 11706 11707bailout: 11708 return (retval); 11709} 11710 11711/* 11712 * Since we only implement one target right now, a bus reset simply resets 11713 * our single target. 11714 */ 11715static int 11716ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io) 11717{ 11718 return(ctl_target_reset(ctl_softc, io, CTL_UA_BUS_RESET)); 11719} 11720 11721static int 11722ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 11723 ctl_ua_type ua_type) 11724{ 11725 struct ctl_lun *lun; 11726 int retval; 11727 11728 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11729 union ctl_ha_msg msg_info; 11730 11731 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11732 msg_info.hdr.nexus = io->io_hdr.nexus; 11733 if (ua_type==CTL_UA_TARG_RESET) 11734 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11735 else 11736 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11737 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11738 msg_info.hdr.original_sc = NULL; 11739 msg_info.hdr.serializing_sc = NULL; 11740 if (CTL_HA_STATUS_SUCCESS != ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11741 (void *)&msg_info, sizeof(msg_info), 0)) { 11742 } 11743 } 11744 retval = 0; 11745 11746 mtx_lock(&ctl_softc->ctl_lock); 11747 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) 11748 retval += ctl_lun_reset(lun, io, ua_type); 11749 mtx_unlock(&ctl_softc->ctl_lock); 11750 11751 return (retval); 11752} 11753 11754/* 11755 * The LUN should always be set. The I/O is optional, and is used to 11756 * distinguish between I/Os sent by this initiator, and by other 11757 * initiators. We set unit attention for initiators other than this one. 11758 * SAM-3 is vague on this point. It does say that a unit attention should 11759 * be established for other initiators when a LUN is reset (see section 11760 * 5.7.3), but it doesn't specifically say that the unit attention should 11761 * be established for this particular initiator when a LUN is reset. Here 11762 * is the relevant text, from SAM-3 rev 8: 11763 * 11764 * 5.7.2 When a SCSI initiator port aborts its own tasks 11765 * 11766 * When a SCSI initiator port causes its own task(s) to be aborted, no 11767 * notification that the task(s) have been aborted shall be returned to 11768 * the SCSI initiator port other than the completion response for the 11769 * command or task management function action that caused the task(s) to 11770 * be aborted and notification(s) associated with related effects of the 11771 * action (e.g., a reset unit attention condition). 11772 * 11773 * XXX KDM for now, we're setting unit attention for all initiators. 11774 */ 11775static int 11776ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11777{ 11778 union ctl_io *xio; 11779#if 0 11780 uint32_t initidx; 11781#endif 11782 int i; 11783 11784 mtx_lock(&lun->lun_lock); 11785 /* 11786 * Run through the OOA queue and abort each I/O. 11787 */ 11788#if 0 11789 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 11790#endif 11791 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11792 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11793 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11794 } 11795 11796 /* 11797 * This version sets unit attention for every 11798 */ 11799#if 0 11800 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11801 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11802 if (initidx == i) 11803 continue; 11804 lun->pending_ua[i] |= ua_type; 11805 } 11806#endif 11807 11808 /* 11809 * A reset (any kind, really) clears reservations established with 11810 * RESERVE/RELEASE. It does not clear reservations established 11811 * with PERSISTENT RESERVE OUT, but we don't support that at the 11812 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11813 * reservations made with the RESERVE/RELEASE commands, because 11814 * those commands are obsolete in SPC-3. 11815 */ 11816 lun->flags &= ~CTL_LUN_RESERVED; 11817 11818 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11819#ifdef CTL_WITH_CA 11820 ctl_clear_mask(lun->have_ca, i); 11821#endif 11822 lun->pending_ua[i] |= ua_type; 11823 } 11824 mtx_unlock(&lun->lun_lock); 11825 11826 return (0); 11827} 11828 11829static void 11830ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11831 int other_sc) 11832{ 11833 union ctl_io *xio; 11834 11835 mtx_assert(&lun->lun_lock, MA_OWNED); 11836 11837 /* 11838 * Run through the OOA queue and attempt to find the given I/O. 11839 * The target port, initiator ID, tag type and tag number have to 11840 * match the values that we got from the initiator. If we have an 11841 * untagged command to abort, simply abort the first untagged command 11842 * we come to. We only allow one untagged command at a time of course. 11843 */ 11844 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11845 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11846 11847 if ((targ_port == UINT32_MAX || 11848 targ_port == xio->io_hdr.nexus.targ_port) && 11849 (init_id == UINT32_MAX || 11850 init_id == xio->io_hdr.nexus.initid.id)) { 11851 if (targ_port != xio->io_hdr.nexus.targ_port || 11852 init_id != xio->io_hdr.nexus.initid.id) 11853 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 11854 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11855 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11856 union ctl_ha_msg msg_info; 11857 11858 msg_info.hdr.nexus = xio->io_hdr.nexus; 11859 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 11860 msg_info.task.tag_num = xio->scsiio.tag_num; 11861 msg_info.task.tag_type = xio->scsiio.tag_type; 11862 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11863 msg_info.hdr.original_sc = NULL; 11864 msg_info.hdr.serializing_sc = NULL; 11865 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11866 (void *)&msg_info, sizeof(msg_info), 0); 11867 } 11868 } 11869 } 11870} 11871 11872static int 11873ctl_abort_task_set(union ctl_io *io) 11874{ 11875 struct ctl_softc *softc = control_softc; 11876 struct ctl_lun *lun; 11877 uint32_t targ_lun; 11878 11879 /* 11880 * Look up the LUN. 11881 */ 11882 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11883 mtx_lock(&softc->ctl_lock); 11884 if ((targ_lun < CTL_MAX_LUNS) && (softc->ctl_luns[targ_lun] != NULL)) 11885 lun = softc->ctl_luns[targ_lun]; 11886 else { 11887 mtx_unlock(&softc->ctl_lock); 11888 return (1); 11889 } 11890 11891 mtx_lock(&lun->lun_lock); 11892 mtx_unlock(&softc->ctl_lock); 11893 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 11894 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11895 io->io_hdr.nexus.initid.id, 11896 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11897 } else { /* CTL_TASK_CLEAR_TASK_SET */ 11898 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 11899 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11900 } 11901 mtx_unlock(&lun->lun_lock); 11902 return (0); 11903} 11904 11905static int 11906ctl_i_t_nexus_reset(union ctl_io *io) 11907{ 11908 struct ctl_softc *softc = control_softc; 11909 struct ctl_lun *lun; 11910 uint32_t initidx, residx; 11911 11912 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11913 residx = ctl_get_resindex(&io->io_hdr.nexus); 11914 mtx_lock(&softc->ctl_lock); 11915 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11916 mtx_lock(&lun->lun_lock); 11917 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11918 io->io_hdr.nexus.initid.id, 11919 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11920#ifdef CTL_WITH_CA 11921 ctl_clear_mask(lun->have_ca, initidx); 11922#endif 11923 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 11924 lun->flags &= ~CTL_LUN_RESERVED; 11925 lun->pending_ua[initidx] |= CTL_UA_I_T_NEXUS_LOSS; 11926 mtx_unlock(&lun->lun_lock); 11927 } 11928 mtx_unlock(&softc->ctl_lock); 11929 return (0); 11930} 11931 11932static int 11933ctl_abort_task(union ctl_io *io) 11934{ 11935 union ctl_io *xio; 11936 struct ctl_lun *lun; 11937 struct ctl_softc *ctl_softc; 11938#if 0 11939 struct sbuf sb; 11940 char printbuf[128]; 11941#endif 11942 int found; 11943 uint32_t targ_lun; 11944 11945 ctl_softc = control_softc; 11946 found = 0; 11947 11948 /* 11949 * Look up the LUN. 11950 */ 11951 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11952 mtx_lock(&ctl_softc->ctl_lock); 11953 if ((targ_lun < CTL_MAX_LUNS) 11954 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 11955 lun = ctl_softc->ctl_luns[targ_lun]; 11956 else { 11957 mtx_unlock(&ctl_softc->ctl_lock); 11958 return (1); 11959 } 11960 11961#if 0 11962 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 11963 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 11964#endif 11965 11966 mtx_lock(&lun->lun_lock); 11967 mtx_unlock(&ctl_softc->ctl_lock); 11968 /* 11969 * Run through the OOA queue and attempt to find the given I/O. 11970 * The target port, initiator ID, tag type and tag number have to 11971 * match the values that we got from the initiator. If we have an 11972 * untagged command to abort, simply abort the first untagged command 11973 * we come to. We only allow one untagged command at a time of course. 11974 */ 11975#if 0 11976 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 11977#endif 11978 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11979 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11980#if 0 11981 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 11982 11983 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 11984 lun->lun, xio->scsiio.tag_num, 11985 xio->scsiio.tag_type, 11986 (xio->io_hdr.blocked_links.tqe_prev 11987 == NULL) ? "" : " BLOCKED", 11988 (xio->io_hdr.flags & 11989 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 11990 (xio->io_hdr.flags & 11991 CTL_FLAG_ABORT) ? " ABORT" : "", 11992 (xio->io_hdr.flags & 11993 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 11994 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 11995 sbuf_finish(&sb); 11996 printf("%s\n", sbuf_data(&sb)); 11997#endif 11998 11999 if ((xio->io_hdr.nexus.targ_port == io->io_hdr.nexus.targ_port) 12000 && (xio->io_hdr.nexus.initid.id == 12001 io->io_hdr.nexus.initid.id)) { 12002 /* 12003 * If the abort says that the task is untagged, the 12004 * task in the queue must be untagged. Otherwise, 12005 * we just check to see whether the tag numbers 12006 * match. This is because the QLogic firmware 12007 * doesn't pass back the tag type in an abort 12008 * request. 12009 */ 12010#if 0 12011 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12012 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12013 || (xio->scsiio.tag_num == io->taskio.tag_num)) { 12014#endif 12015 /* 12016 * XXX KDM we've got problems with FC, because it 12017 * doesn't send down a tag type with aborts. So we 12018 * can only really go by the tag number... 12019 * This may cause problems with parallel SCSI. 12020 * Need to figure that out!! 12021 */ 12022 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12023 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12024 found = 1; 12025 if ((io->io_hdr.flags & 12026 CTL_FLAG_FROM_OTHER_SC) == 0 && 12027 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12028 union ctl_ha_msg msg_info; 12029 12030 io->io_hdr.flags |= 12031 CTL_FLAG_SENT_2OTHER_SC; 12032 msg_info.hdr.nexus = io->io_hdr.nexus; 12033 msg_info.task.task_action = 12034 CTL_TASK_ABORT_TASK; 12035 msg_info.task.tag_num = 12036 io->taskio.tag_num; 12037 msg_info.task.tag_type = 12038 io->taskio.tag_type; 12039 msg_info.hdr.msg_type = 12040 CTL_MSG_MANAGE_TASKS; 12041 msg_info.hdr.original_sc = NULL; 12042 msg_info.hdr.serializing_sc = NULL; 12043#if 0 12044 printf("Sent Abort to other side\n"); 12045#endif 12046 if (CTL_HA_STATUS_SUCCESS != 12047 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12048 (void *)&msg_info, 12049 sizeof(msg_info), 0)) { 12050 } 12051 } 12052#if 0 12053 printf("ctl_abort_task: found I/O to abort\n"); 12054#endif 12055 break; 12056 } 12057 } 12058 } 12059 mtx_unlock(&lun->lun_lock); 12060 12061 if (found == 0) { 12062 /* 12063 * This isn't really an error. It's entirely possible for 12064 * the abort and command completion to cross on the wire. 12065 * This is more of an informative/diagnostic error. 12066 */ 12067#if 0 12068 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12069 "%d:%d:%d:%d tag %d type %d\n", 12070 io->io_hdr.nexus.initid.id, 12071 io->io_hdr.nexus.targ_port, 12072 io->io_hdr.nexus.targ_target.id, 12073 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12074 io->taskio.tag_type); 12075#endif 12076 } 12077 return (0); 12078} 12079 12080static void 12081ctl_run_task(union ctl_io *io) 12082{ 12083 struct ctl_softc *ctl_softc = control_softc; 12084 int retval = 1; 12085 const char *task_desc; 12086 12087 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12088 12089 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12090 ("ctl_run_task: Unextected io_type %d\n", 12091 io->io_hdr.io_type)); 12092 12093 task_desc = ctl_scsi_task_string(&io->taskio); 12094 if (task_desc != NULL) { 12095#ifdef NEEDTOPORT 12096 csevent_log(CSC_CTL | CSC_SHELF_SW | 12097 CTL_TASK_REPORT, 12098 csevent_LogType_Trace, 12099 csevent_Severity_Information, 12100 csevent_AlertLevel_Green, 12101 csevent_FRU_Firmware, 12102 csevent_FRU_Unknown, 12103 "CTL: received task: %s",task_desc); 12104#endif 12105 } else { 12106#ifdef NEEDTOPORT 12107 csevent_log(CSC_CTL | CSC_SHELF_SW | 12108 CTL_TASK_REPORT, 12109 csevent_LogType_Trace, 12110 csevent_Severity_Information, 12111 csevent_AlertLevel_Green, 12112 csevent_FRU_Firmware, 12113 csevent_FRU_Unknown, 12114 "CTL: received unknown task " 12115 "type: %d (%#x)", 12116 io->taskio.task_action, 12117 io->taskio.task_action); 12118#endif 12119 } 12120 switch (io->taskio.task_action) { 12121 case CTL_TASK_ABORT_TASK: 12122 retval = ctl_abort_task(io); 12123 break; 12124 case CTL_TASK_ABORT_TASK_SET: 12125 case CTL_TASK_CLEAR_TASK_SET: 12126 retval = ctl_abort_task_set(io); 12127 break; 12128 case CTL_TASK_CLEAR_ACA: 12129 break; 12130 case CTL_TASK_I_T_NEXUS_RESET: 12131 retval = ctl_i_t_nexus_reset(io); 12132 break; 12133 case CTL_TASK_LUN_RESET: { 12134 struct ctl_lun *lun; 12135 uint32_t targ_lun; 12136 12137 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12138 mtx_lock(&ctl_softc->ctl_lock); 12139 if ((targ_lun < CTL_MAX_LUNS) 12140 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12141 lun = ctl_softc->ctl_luns[targ_lun]; 12142 else { 12143 mtx_unlock(&ctl_softc->ctl_lock); 12144 retval = 1; 12145 break; 12146 } 12147 12148 if (!(io->io_hdr.flags & 12149 CTL_FLAG_FROM_OTHER_SC)) { 12150 union ctl_ha_msg msg_info; 12151 12152 io->io_hdr.flags |= 12153 CTL_FLAG_SENT_2OTHER_SC; 12154 msg_info.hdr.msg_type = 12155 CTL_MSG_MANAGE_TASKS; 12156 msg_info.hdr.nexus = io->io_hdr.nexus; 12157 msg_info.task.task_action = 12158 CTL_TASK_LUN_RESET; 12159 msg_info.hdr.original_sc = NULL; 12160 msg_info.hdr.serializing_sc = NULL; 12161 if (CTL_HA_STATUS_SUCCESS != 12162 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12163 (void *)&msg_info, 12164 sizeof(msg_info), 0)) { 12165 } 12166 } 12167 12168 retval = ctl_lun_reset(lun, io, 12169 CTL_UA_LUN_RESET); 12170 mtx_unlock(&ctl_softc->ctl_lock); 12171 break; 12172 } 12173 case CTL_TASK_TARGET_RESET: 12174 retval = ctl_target_reset(ctl_softc, io, CTL_UA_TARG_RESET); 12175 break; 12176 case CTL_TASK_BUS_RESET: 12177 retval = ctl_bus_reset(ctl_softc, io); 12178 break; 12179 case CTL_TASK_PORT_LOGIN: 12180 break; 12181 case CTL_TASK_PORT_LOGOUT: 12182 break; 12183 default: 12184 printf("ctl_run_task: got unknown task management event %d\n", 12185 io->taskio.task_action); 12186 break; 12187 } 12188 if (retval == 0) 12189 io->io_hdr.status = CTL_SUCCESS; 12190 else 12191 io->io_hdr.status = CTL_ERROR; 12192 ctl_done(io); 12193} 12194 12195/* 12196 * For HA operation. Handle commands that come in from the other 12197 * controller. 12198 */ 12199static void 12200ctl_handle_isc(union ctl_io *io) 12201{ 12202 int free_io; 12203 struct ctl_lun *lun; 12204 struct ctl_softc *ctl_softc; 12205 uint32_t targ_lun; 12206 12207 ctl_softc = control_softc; 12208 12209 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12210 lun = ctl_softc->ctl_luns[targ_lun]; 12211 12212 switch (io->io_hdr.msg_type) { 12213 case CTL_MSG_SERIALIZE: 12214 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12215 break; 12216 case CTL_MSG_R2R: { 12217 const struct ctl_cmd_entry *entry; 12218 12219 /* 12220 * This is only used in SER_ONLY mode. 12221 */ 12222 free_io = 0; 12223 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12224 mtx_lock(&lun->lun_lock); 12225 if (ctl_scsiio_lun_check(ctl_softc, lun, 12226 entry, (struct ctl_scsiio *)io) != 0) { 12227 mtx_unlock(&lun->lun_lock); 12228 ctl_done(io); 12229 break; 12230 } 12231 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12232 mtx_unlock(&lun->lun_lock); 12233 ctl_enqueue_rtr(io); 12234 break; 12235 } 12236 case CTL_MSG_FINISH_IO: 12237 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 12238 free_io = 0; 12239 ctl_done(io); 12240 } else { 12241 free_io = 1; 12242 mtx_lock(&lun->lun_lock); 12243 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12244 ooa_links); 12245 ctl_check_blocked(lun); 12246 mtx_unlock(&lun->lun_lock); 12247 } 12248 break; 12249 case CTL_MSG_PERS_ACTION: 12250 ctl_hndl_per_res_out_on_other_sc( 12251 (union ctl_ha_msg *)&io->presio.pr_msg); 12252 free_io = 1; 12253 break; 12254 case CTL_MSG_BAD_JUJU: 12255 free_io = 0; 12256 ctl_done(io); 12257 break; 12258 case CTL_MSG_DATAMOVE: 12259 /* Only used in XFER mode */ 12260 free_io = 0; 12261 ctl_datamove_remote(io); 12262 break; 12263 case CTL_MSG_DATAMOVE_DONE: 12264 /* Only used in XFER mode */ 12265 free_io = 0; 12266 io->scsiio.be_move_done(io); 12267 break; 12268 default: 12269 free_io = 1; 12270 printf("%s: Invalid message type %d\n", 12271 __func__, io->io_hdr.msg_type); 12272 break; 12273 } 12274 if (free_io) 12275 ctl_free_io(io); 12276 12277} 12278 12279 12280/* 12281 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12282 * there is no match. 12283 */ 12284static ctl_lun_error_pattern 12285ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12286{ 12287 const struct ctl_cmd_entry *entry; 12288 ctl_lun_error_pattern filtered_pattern, pattern; 12289 12290 pattern = desc->error_pattern; 12291 12292 /* 12293 * XXX KDM we need more data passed into this function to match a 12294 * custom pattern, and we actually need to implement custom pattern 12295 * matching. 12296 */ 12297 if (pattern & CTL_LUN_PAT_CMD) 12298 return (CTL_LUN_PAT_CMD); 12299 12300 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12301 return (CTL_LUN_PAT_ANY); 12302 12303 entry = ctl_get_cmd_entry(ctsio, NULL); 12304 12305 filtered_pattern = entry->pattern & pattern; 12306 12307 /* 12308 * If the user requested specific flags in the pattern (e.g. 12309 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12310 * flags. 12311 * 12312 * If the user did not specify any flags, it doesn't matter whether 12313 * or not the command supports the flags. 12314 */ 12315 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12316 (pattern & ~CTL_LUN_PAT_MASK)) 12317 return (CTL_LUN_PAT_NONE); 12318 12319 /* 12320 * If the user asked for a range check, see if the requested LBA 12321 * range overlaps with this command's LBA range. 12322 */ 12323 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12324 uint64_t lba1; 12325 uint64_t len1; 12326 ctl_action action; 12327 int retval; 12328 12329 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12330 if (retval != 0) 12331 return (CTL_LUN_PAT_NONE); 12332 12333 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12334 desc->lba_range.len); 12335 /* 12336 * A "pass" means that the LBA ranges don't overlap, so 12337 * this doesn't match the user's range criteria. 12338 */ 12339 if (action == CTL_ACTION_PASS) 12340 return (CTL_LUN_PAT_NONE); 12341 } 12342 12343 return (filtered_pattern); 12344} 12345 12346static void 12347ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12348{ 12349 struct ctl_error_desc *desc, *desc2; 12350 12351 mtx_assert(&lun->lun_lock, MA_OWNED); 12352 12353 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12354 ctl_lun_error_pattern pattern; 12355 /* 12356 * Check to see whether this particular command matches 12357 * the pattern in the descriptor. 12358 */ 12359 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12360 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12361 continue; 12362 12363 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12364 case CTL_LUN_INJ_ABORTED: 12365 ctl_set_aborted(&io->scsiio); 12366 break; 12367 case CTL_LUN_INJ_MEDIUM_ERR: 12368 ctl_set_medium_error(&io->scsiio); 12369 break; 12370 case CTL_LUN_INJ_UA: 12371 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12372 * OCCURRED */ 12373 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12374 break; 12375 case CTL_LUN_INJ_CUSTOM: 12376 /* 12377 * We're assuming the user knows what he is doing. 12378 * Just copy the sense information without doing 12379 * checks. 12380 */ 12381 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12382 ctl_min(sizeof(desc->custom_sense), 12383 sizeof(io->scsiio.sense_data))); 12384 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12385 io->scsiio.sense_len = SSD_FULL_SIZE; 12386 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12387 break; 12388 case CTL_LUN_INJ_NONE: 12389 default: 12390 /* 12391 * If this is an error injection type we don't know 12392 * about, clear the continuous flag (if it is set) 12393 * so it will get deleted below. 12394 */ 12395 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12396 break; 12397 } 12398 /* 12399 * By default, each error injection action is a one-shot 12400 */ 12401 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12402 continue; 12403 12404 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12405 12406 free(desc, M_CTL); 12407 } 12408} 12409 12410#ifdef CTL_IO_DELAY 12411static void 12412ctl_datamove_timer_wakeup(void *arg) 12413{ 12414 union ctl_io *io; 12415 12416 io = (union ctl_io *)arg; 12417 12418 ctl_datamove(io); 12419} 12420#endif /* CTL_IO_DELAY */ 12421 12422void 12423ctl_datamove(union ctl_io *io) 12424{ 12425 void (*fe_datamove)(union ctl_io *io); 12426 12427 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12428 12429 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12430 12431#ifdef CTL_TIME_IO 12432 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12433 char str[256]; 12434 char path_str[64]; 12435 struct sbuf sb; 12436 12437 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12438 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12439 12440 sbuf_cat(&sb, path_str); 12441 switch (io->io_hdr.io_type) { 12442 case CTL_IO_SCSI: 12443 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12444 sbuf_printf(&sb, "\n"); 12445 sbuf_cat(&sb, path_str); 12446 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12447 io->scsiio.tag_num, io->scsiio.tag_type); 12448 break; 12449 case CTL_IO_TASK: 12450 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12451 "Tag Type: %d\n", io->taskio.task_action, 12452 io->taskio.tag_num, io->taskio.tag_type); 12453 break; 12454 default: 12455 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12456 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12457 break; 12458 } 12459 sbuf_cat(&sb, path_str); 12460 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12461 (intmax_t)time_uptime - io->io_hdr.start_time); 12462 sbuf_finish(&sb); 12463 printf("%s", sbuf_data(&sb)); 12464 } 12465#endif /* CTL_TIME_IO */ 12466 12467#ifdef CTL_IO_DELAY 12468 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12469 struct ctl_lun *lun; 12470 12471 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12472 12473 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12474 } else { 12475 struct ctl_lun *lun; 12476 12477 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12478 if ((lun != NULL) 12479 && (lun->delay_info.datamove_delay > 0)) { 12480 struct callout *callout; 12481 12482 callout = (struct callout *)&io->io_hdr.timer_bytes; 12483 callout_init(callout, /*mpsafe*/ 1); 12484 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12485 callout_reset(callout, 12486 lun->delay_info.datamove_delay * hz, 12487 ctl_datamove_timer_wakeup, io); 12488 if (lun->delay_info.datamove_type == 12489 CTL_DELAY_TYPE_ONESHOT) 12490 lun->delay_info.datamove_delay = 0; 12491 return; 12492 } 12493 } 12494#endif 12495 12496 /* 12497 * This command has been aborted. Set the port status, so we fail 12498 * the data move. 12499 */ 12500 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12501 printf("ctl_datamove: tag 0x%04x on (%ju:%d:%ju:%d) aborted\n", 12502 io->scsiio.tag_num,(uintmax_t)io->io_hdr.nexus.initid.id, 12503 io->io_hdr.nexus.targ_port, 12504 (uintmax_t)io->io_hdr.nexus.targ_target.id, 12505 io->io_hdr.nexus.targ_lun); 12506 io->io_hdr.port_status = 31337; 12507 /* 12508 * Note that the backend, in this case, will get the 12509 * callback in its context. In other cases it may get 12510 * called in the frontend's interrupt thread context. 12511 */ 12512 io->scsiio.be_move_done(io); 12513 return; 12514 } 12515 12516 /* Don't confuse frontend with zero length data move. */ 12517 if (io->scsiio.kern_data_len == 0) { 12518 io->scsiio.be_move_done(io); 12519 return; 12520 } 12521 12522 /* 12523 * If we're in XFER mode and this I/O is from the other shelf 12524 * controller, we need to send the DMA to the other side to 12525 * actually transfer the data to/from the host. In serialize only 12526 * mode the transfer happens below CTL and ctl_datamove() is only 12527 * called on the machine that originally received the I/O. 12528 */ 12529 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12530 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12531 union ctl_ha_msg msg; 12532 uint32_t sg_entries_sent; 12533 int do_sg_copy; 12534 int i; 12535 12536 memset(&msg, 0, sizeof(msg)); 12537 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12538 msg.hdr.original_sc = io->io_hdr.original_sc; 12539 msg.hdr.serializing_sc = io; 12540 msg.hdr.nexus = io->io_hdr.nexus; 12541 msg.dt.flags = io->io_hdr.flags; 12542 /* 12543 * We convert everything into a S/G list here. We can't 12544 * pass by reference, only by value between controllers. 12545 * So we can't pass a pointer to the S/G list, only as many 12546 * S/G entries as we can fit in here. If it's possible for 12547 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12548 * then we need to break this up into multiple transfers. 12549 */ 12550 if (io->scsiio.kern_sg_entries == 0) { 12551 msg.dt.kern_sg_entries = 1; 12552 /* 12553 * If this is in cached memory, flush the cache 12554 * before we send the DMA request to the other 12555 * controller. We want to do this in either the 12556 * read or the write case. The read case is 12557 * straightforward. In the write case, we want to 12558 * make sure nothing is in the local cache that 12559 * could overwrite the DMAed data. 12560 */ 12561 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12562 /* 12563 * XXX KDM use bus_dmamap_sync() here. 12564 */ 12565 } 12566 12567 /* 12568 * Convert to a physical address if this is a 12569 * virtual address. 12570 */ 12571 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12572 msg.dt.sg_list[0].addr = 12573 io->scsiio.kern_data_ptr; 12574 } else { 12575 /* 12576 * XXX KDM use busdma here! 12577 */ 12578#if 0 12579 msg.dt.sg_list[0].addr = (void *) 12580 vtophys(io->scsiio.kern_data_ptr); 12581#endif 12582 } 12583 12584 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12585 do_sg_copy = 0; 12586 } else { 12587 struct ctl_sg_entry *sgl; 12588 12589 do_sg_copy = 1; 12590 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12591 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 12592 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12593 /* 12594 * XXX KDM use bus_dmamap_sync() here. 12595 */ 12596 } 12597 } 12598 12599 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12600 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12601 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12602 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12603 msg.dt.sg_sequence = 0; 12604 12605 /* 12606 * Loop until we've sent all of the S/G entries. On the 12607 * other end, we'll recompose these S/G entries into one 12608 * contiguous list before passing it to the 12609 */ 12610 for (sg_entries_sent = 0; sg_entries_sent < 12611 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12612 msg.dt.cur_sg_entries = ctl_min((sizeof(msg.dt.sg_list)/ 12613 sizeof(msg.dt.sg_list[0])), 12614 msg.dt.kern_sg_entries - sg_entries_sent); 12615 12616 if (do_sg_copy != 0) { 12617 struct ctl_sg_entry *sgl; 12618 int j; 12619 12620 sgl = (struct ctl_sg_entry *) 12621 io->scsiio.kern_data_ptr; 12622 /* 12623 * If this is in cached memory, flush the cache 12624 * before we send the DMA request to the other 12625 * controller. We want to do this in either 12626 * the * read or the write case. The read 12627 * case is straightforward. In the write 12628 * case, we want to make sure nothing is 12629 * in the local cache that could overwrite 12630 * the DMAed data. 12631 */ 12632 12633 for (i = sg_entries_sent, j = 0; 12634 i < msg.dt.cur_sg_entries; i++, j++) { 12635 if ((io->io_hdr.flags & 12636 CTL_FLAG_NO_DATASYNC) == 0) { 12637 /* 12638 * XXX KDM use bus_dmamap_sync() 12639 */ 12640 } 12641 if ((io->io_hdr.flags & 12642 CTL_FLAG_BUS_ADDR) == 0) { 12643 /* 12644 * XXX KDM use busdma. 12645 */ 12646#if 0 12647 msg.dt.sg_list[j].addr =(void *) 12648 vtophys(sgl[i].addr); 12649#endif 12650 } else { 12651 msg.dt.sg_list[j].addr = 12652 sgl[i].addr; 12653 } 12654 msg.dt.sg_list[j].len = sgl[i].len; 12655 } 12656 } 12657 12658 sg_entries_sent += msg.dt.cur_sg_entries; 12659 if (sg_entries_sent >= msg.dt.kern_sg_entries) 12660 msg.dt.sg_last = 1; 12661 else 12662 msg.dt.sg_last = 0; 12663 12664 /* 12665 * XXX KDM drop and reacquire the lock here? 12666 */ 12667 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12668 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 12669 /* 12670 * XXX do something here. 12671 */ 12672 } 12673 12674 msg.dt.sent_sg_entries = sg_entries_sent; 12675 } 12676 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12677 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) 12678 ctl_failover_io(io, /*have_lock*/ 0); 12679 12680 } else { 12681 12682 /* 12683 * Lookup the fe_datamove() function for this particular 12684 * front end. 12685 */ 12686 fe_datamove = 12687 control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12688 12689 fe_datamove(io); 12690 } 12691} 12692 12693static void 12694ctl_send_datamove_done(union ctl_io *io, int have_lock) 12695{ 12696 union ctl_ha_msg msg; 12697 int isc_status; 12698 12699 memset(&msg, 0, sizeof(msg)); 12700 12701 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12702 msg.hdr.original_sc = io; 12703 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12704 msg.hdr.nexus = io->io_hdr.nexus; 12705 msg.hdr.status = io->io_hdr.status; 12706 msg.scsi.tag_num = io->scsiio.tag_num; 12707 msg.scsi.tag_type = io->scsiio.tag_type; 12708 msg.scsi.scsi_status = io->scsiio.scsi_status; 12709 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12710 sizeof(io->scsiio.sense_data)); 12711 msg.scsi.sense_len = io->scsiio.sense_len; 12712 msg.scsi.sense_residual = io->scsiio.sense_residual; 12713 msg.scsi.fetd_status = io->io_hdr.port_status; 12714 msg.scsi.residual = io->scsiio.residual; 12715 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12716 12717 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12718 ctl_failover_io(io, /*have_lock*/ have_lock); 12719 return; 12720 } 12721 12722 isc_status = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0); 12723 if (isc_status > CTL_HA_STATUS_SUCCESS) { 12724 /* XXX do something if this fails */ 12725 } 12726 12727} 12728 12729/* 12730 * The DMA to the remote side is done, now we need to tell the other side 12731 * we're done so it can continue with its data movement. 12732 */ 12733static void 12734ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12735{ 12736 union ctl_io *io; 12737 12738 io = rq->context; 12739 12740 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12741 printf("%s: ISC DMA write failed with error %d", __func__, 12742 rq->ret); 12743 ctl_set_internal_failure(&io->scsiio, 12744 /*sks_valid*/ 1, 12745 /*retry_count*/ rq->ret); 12746 } 12747 12748 ctl_dt_req_free(rq); 12749 12750 /* 12751 * In this case, we had to malloc the memory locally. Free it. 12752 */ 12753 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12754 int i; 12755 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12756 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12757 } 12758 /* 12759 * The data is in local and remote memory, so now we need to send 12760 * status (good or back) back to the other side. 12761 */ 12762 ctl_send_datamove_done(io, /*have_lock*/ 0); 12763} 12764 12765/* 12766 * We've moved the data from the host/controller into local memory. Now we 12767 * need to push it over to the remote controller's memory. 12768 */ 12769static int 12770ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12771{ 12772 int retval; 12773 12774 retval = 0; 12775 12776 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12777 ctl_datamove_remote_write_cb); 12778 12779 return (retval); 12780} 12781 12782static void 12783ctl_datamove_remote_write(union ctl_io *io) 12784{ 12785 int retval; 12786 void (*fe_datamove)(union ctl_io *io); 12787 12788 /* 12789 * - Get the data from the host/HBA into local memory. 12790 * - DMA memory from the local controller to the remote controller. 12791 * - Send status back to the remote controller. 12792 */ 12793 12794 retval = ctl_datamove_remote_sgl_setup(io); 12795 if (retval != 0) 12796 return; 12797 12798 /* Switch the pointer over so the FETD knows what to do */ 12799 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12800 12801 /* 12802 * Use a custom move done callback, since we need to send completion 12803 * back to the other controller, not to the backend on this side. 12804 */ 12805 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12806 12807 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12808 12809 fe_datamove(io); 12810 12811 return; 12812 12813} 12814 12815static int 12816ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12817{ 12818#if 0 12819 char str[256]; 12820 char path_str[64]; 12821 struct sbuf sb; 12822#endif 12823 12824 /* 12825 * In this case, we had to malloc the memory locally. Free it. 12826 */ 12827 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12828 int i; 12829 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12830 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12831 } 12832 12833#if 0 12834 scsi_path_string(io, path_str, sizeof(path_str)); 12835 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12836 sbuf_cat(&sb, path_str); 12837 scsi_command_string(&io->scsiio, NULL, &sb); 12838 sbuf_printf(&sb, "\n"); 12839 sbuf_cat(&sb, path_str); 12840 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12841 io->scsiio.tag_num, io->scsiio.tag_type); 12842 sbuf_cat(&sb, path_str); 12843 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12844 io->io_hdr.flags, io->io_hdr.status); 12845 sbuf_finish(&sb); 12846 printk("%s", sbuf_data(&sb)); 12847#endif 12848 12849 12850 /* 12851 * The read is done, now we need to send status (good or bad) back 12852 * to the other side. 12853 */ 12854 ctl_send_datamove_done(io, /*have_lock*/ 0); 12855 12856 return (0); 12857} 12858 12859static void 12860ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12861{ 12862 union ctl_io *io; 12863 void (*fe_datamove)(union ctl_io *io); 12864 12865 io = rq->context; 12866 12867 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12868 printf("%s: ISC DMA read failed with error %d", __func__, 12869 rq->ret); 12870 ctl_set_internal_failure(&io->scsiio, 12871 /*sks_valid*/ 1, 12872 /*retry_count*/ rq->ret); 12873 } 12874 12875 ctl_dt_req_free(rq); 12876 12877 /* Switch the pointer over so the FETD knows what to do */ 12878 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12879 12880 /* 12881 * Use a custom move done callback, since we need to send completion 12882 * back to the other controller, not to the backend on this side. 12883 */ 12884 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12885 12886 /* XXX KDM add checks like the ones in ctl_datamove? */ 12887 12888 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12889 12890 fe_datamove(io); 12891} 12892 12893static int 12894ctl_datamove_remote_sgl_setup(union ctl_io *io) 12895{ 12896 struct ctl_sg_entry *local_sglist, *remote_sglist; 12897 struct ctl_sg_entry *local_dma_sglist, *remote_dma_sglist; 12898 struct ctl_softc *softc; 12899 int retval; 12900 int i; 12901 12902 retval = 0; 12903 softc = control_softc; 12904 12905 local_sglist = io->io_hdr.local_sglist; 12906 local_dma_sglist = io->io_hdr.local_dma_sglist; 12907 remote_sglist = io->io_hdr.remote_sglist; 12908 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 12909 12910 if (io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) { 12911 for (i = 0; i < io->scsiio.kern_sg_entries; i++) { 12912 local_sglist[i].len = remote_sglist[i].len; 12913 12914 /* 12915 * XXX Detect the situation where the RS-level I/O 12916 * redirector on the other side has already read the 12917 * data off of the AOR RS on this side, and 12918 * transferred it to remote (mirror) memory on the 12919 * other side. Since we already have the data in 12920 * memory here, we just need to use it. 12921 * 12922 * XXX KDM this can probably be removed once we 12923 * get the cache device code in and take the 12924 * current AOR implementation out. 12925 */ 12926#ifdef NEEDTOPORT 12927 if ((remote_sglist[i].addr >= 12928 (void *)vtophys(softc->mirr->addr)) 12929 && (remote_sglist[i].addr < 12930 ((void *)vtophys(softc->mirr->addr) + 12931 CacheMirrorOffset))) { 12932 local_sglist[i].addr = remote_sglist[i].addr - 12933 CacheMirrorOffset; 12934 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 12935 CTL_FLAG_DATA_IN) 12936 io->io_hdr.flags |= CTL_FLAG_REDIR_DONE; 12937 } else { 12938 local_sglist[i].addr = remote_sglist[i].addr + 12939 CacheMirrorOffset; 12940 } 12941#endif 12942#if 0 12943 printf("%s: local %p, remote %p, len %d\n", 12944 __func__, local_sglist[i].addr, 12945 remote_sglist[i].addr, local_sglist[i].len); 12946#endif 12947 } 12948 } else { 12949 uint32_t len_to_go; 12950 12951 /* 12952 * In this case, we don't have automatically allocated 12953 * memory for this I/O on this controller. This typically 12954 * happens with internal CTL I/O -- e.g. inquiry, mode 12955 * sense, etc. Anything coming from RAIDCore will have 12956 * a mirror area available. 12957 */ 12958 len_to_go = io->scsiio.kern_data_len; 12959 12960 /* 12961 * Clear the no datasync flag, we have to use malloced 12962 * buffers. 12963 */ 12964 io->io_hdr.flags &= ~CTL_FLAG_NO_DATASYNC; 12965 12966 /* 12967 * The difficult thing here is that the size of the various 12968 * S/G segments may be different than the size from the 12969 * remote controller. That'll make it harder when DMAing 12970 * the data back to the other side. 12971 */ 12972 for (i = 0; (i < sizeof(io->io_hdr.remote_sglist) / 12973 sizeof(io->io_hdr.remote_sglist[0])) && 12974 (len_to_go > 0); i++) { 12975 local_sglist[i].len = ctl_min(len_to_go, 131072); 12976 CTL_SIZE_8B(local_dma_sglist[i].len, 12977 local_sglist[i].len); 12978 local_sglist[i].addr = 12979 malloc(local_dma_sglist[i].len, M_CTL,M_WAITOK); 12980 12981 local_dma_sglist[i].addr = local_sglist[i].addr; 12982 12983 if (local_sglist[i].addr == NULL) { 12984 int j; 12985 12986 printf("malloc failed for %zd bytes!", 12987 local_dma_sglist[i].len); 12988 for (j = 0; j < i; j++) { 12989 free(local_sglist[j].addr, M_CTL); 12990 } 12991 ctl_set_internal_failure(&io->scsiio, 12992 /*sks_valid*/ 1, 12993 /*retry_count*/ 4857); 12994 retval = 1; 12995 goto bailout_error; 12996 12997 } 12998 /* XXX KDM do we need a sync here? */ 12999 13000 len_to_go -= local_sglist[i].len; 13001 } 13002 /* 13003 * Reset the number of S/G entries accordingly. The 13004 * original number of S/G entries is available in 13005 * rem_sg_entries. 13006 */ 13007 io->scsiio.kern_sg_entries = i; 13008 13009#if 0 13010 printf("%s: kern_sg_entries = %d\n", __func__, 13011 io->scsiio.kern_sg_entries); 13012 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13013 printf("%s: sg[%d] = %p, %d (DMA: %d)\n", __func__, i, 13014 local_sglist[i].addr, local_sglist[i].len, 13015 local_dma_sglist[i].len); 13016#endif 13017 } 13018 13019 13020 return (retval); 13021 13022bailout_error: 13023 13024 ctl_send_datamove_done(io, /*have_lock*/ 0); 13025 13026 return (retval); 13027} 13028 13029static int 13030ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 13031 ctl_ha_dt_cb callback) 13032{ 13033 struct ctl_ha_dt_req *rq; 13034 struct ctl_sg_entry *remote_sglist, *local_sglist; 13035 struct ctl_sg_entry *remote_dma_sglist, *local_dma_sglist; 13036 uint32_t local_used, remote_used, total_used; 13037 int retval; 13038 int i, j; 13039 13040 retval = 0; 13041 13042 rq = ctl_dt_req_alloc(); 13043 13044 /* 13045 * If we failed to allocate the request, and if the DMA didn't fail 13046 * anyway, set busy status. This is just a resource allocation 13047 * failure. 13048 */ 13049 if ((rq == NULL) 13050 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)) 13051 ctl_set_busy(&io->scsiio); 13052 13053 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 13054 13055 if (rq != NULL) 13056 ctl_dt_req_free(rq); 13057 13058 /* 13059 * The data move failed. We need to return status back 13060 * to the other controller. No point in trying to DMA 13061 * data to the remote controller. 13062 */ 13063 13064 ctl_send_datamove_done(io, /*have_lock*/ 0); 13065 13066 retval = 1; 13067 13068 goto bailout; 13069 } 13070 13071 local_sglist = io->io_hdr.local_sglist; 13072 local_dma_sglist = io->io_hdr.local_dma_sglist; 13073 remote_sglist = io->io_hdr.remote_sglist; 13074 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13075 local_used = 0; 13076 remote_used = 0; 13077 total_used = 0; 13078 13079 if (io->io_hdr.flags & CTL_FLAG_REDIR_DONE) { 13080 rq->ret = CTL_HA_STATUS_SUCCESS; 13081 rq->context = io; 13082 callback(rq); 13083 goto bailout; 13084 } 13085 13086 /* 13087 * Pull/push the data over the wire from/to the other controller. 13088 * This takes into account the possibility that the local and 13089 * remote sglists may not be identical in terms of the size of 13090 * the elements and the number of elements. 13091 * 13092 * One fundamental assumption here is that the length allocated for 13093 * both the local and remote sglists is identical. Otherwise, we've 13094 * essentially got a coding error of some sort. 13095 */ 13096 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 13097 int isc_ret; 13098 uint32_t cur_len, dma_length; 13099 uint8_t *tmp_ptr; 13100 13101 rq->id = CTL_HA_DATA_CTL; 13102 rq->command = command; 13103 rq->context = io; 13104 13105 /* 13106 * Both pointers should be aligned. But it is possible 13107 * that the allocation length is not. They should both 13108 * also have enough slack left over at the end, though, 13109 * to round up to the next 8 byte boundary. 13110 */ 13111 cur_len = ctl_min(local_sglist[i].len - local_used, 13112 remote_sglist[j].len - remote_used); 13113 13114 /* 13115 * In this case, we have a size issue and need to decrease 13116 * the size, except in the case where we actually have less 13117 * than 8 bytes left. In that case, we need to increase 13118 * the DMA length to get the last bit. 13119 */ 13120 if ((cur_len & 0x7) != 0) { 13121 if (cur_len > 0x7) { 13122 cur_len = cur_len - (cur_len & 0x7); 13123 dma_length = cur_len; 13124 } else { 13125 CTL_SIZE_8B(dma_length, cur_len); 13126 } 13127 13128 } else 13129 dma_length = cur_len; 13130 13131 /* 13132 * If we had to allocate memory for this I/O, instead of using 13133 * the non-cached mirror memory, we'll need to flush the cache 13134 * before trying to DMA to the other controller. 13135 * 13136 * We could end up doing this multiple times for the same 13137 * segment if we have a larger local segment than remote 13138 * segment. That shouldn't be an issue. 13139 */ 13140 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 13141 /* 13142 * XXX KDM use bus_dmamap_sync() here. 13143 */ 13144 } 13145 13146 rq->size = dma_length; 13147 13148 tmp_ptr = (uint8_t *)local_sglist[i].addr; 13149 tmp_ptr += local_used; 13150 13151 /* Use physical addresses when talking to ISC hardware */ 13152 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 13153 /* XXX KDM use busdma */ 13154#if 0 13155 rq->local = vtophys(tmp_ptr); 13156#endif 13157 } else 13158 rq->local = tmp_ptr; 13159 13160 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 13161 tmp_ptr += remote_used; 13162 rq->remote = tmp_ptr; 13163 13164 rq->callback = NULL; 13165 13166 local_used += cur_len; 13167 if (local_used >= local_sglist[i].len) { 13168 i++; 13169 local_used = 0; 13170 } 13171 13172 remote_used += cur_len; 13173 if (remote_used >= remote_sglist[j].len) { 13174 j++; 13175 remote_used = 0; 13176 } 13177 total_used += cur_len; 13178 13179 if (total_used >= io->scsiio.kern_data_len) 13180 rq->callback = callback; 13181 13182 if ((rq->size & 0x7) != 0) { 13183 printf("%s: warning: size %d is not on 8b boundary\n", 13184 __func__, rq->size); 13185 } 13186 if (((uintptr_t)rq->local & 0x7) != 0) { 13187 printf("%s: warning: local %p not on 8b boundary\n", 13188 __func__, rq->local); 13189 } 13190 if (((uintptr_t)rq->remote & 0x7) != 0) { 13191 printf("%s: warning: remote %p not on 8b boundary\n", 13192 __func__, rq->local); 13193 } 13194#if 0 13195 printf("%s: %s: local %#x remote %#x size %d\n", __func__, 13196 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13197 rq->local, rq->remote, rq->size); 13198#endif 13199 13200 isc_ret = ctl_dt_single(rq); 13201 if (isc_ret == CTL_HA_STATUS_WAIT) 13202 continue; 13203 13204 if (isc_ret == CTL_HA_STATUS_DISCONNECT) { 13205 rq->ret = CTL_HA_STATUS_SUCCESS; 13206 } else { 13207 rq->ret = isc_ret; 13208 } 13209 callback(rq); 13210 goto bailout; 13211 } 13212 13213bailout: 13214 return (retval); 13215 13216} 13217 13218static void 13219ctl_datamove_remote_read(union ctl_io *io) 13220{ 13221 int retval; 13222 int i; 13223 13224 /* 13225 * This will send an error to the other controller in the case of a 13226 * failure. 13227 */ 13228 retval = ctl_datamove_remote_sgl_setup(io); 13229 if (retval != 0) 13230 return; 13231 13232 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13233 ctl_datamove_remote_read_cb); 13234 if ((retval != 0) 13235 && ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0)) { 13236 /* 13237 * Make sure we free memory if there was an error.. The 13238 * ctl_datamove_remote_xfer() function will send the 13239 * datamove done message, or call the callback with an 13240 * error if there is a problem. 13241 */ 13242 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13243 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13244 } 13245 13246 return; 13247} 13248 13249/* 13250 * Process a datamove request from the other controller. This is used for 13251 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13252 * first. Once that is complete, the data gets DMAed into the remote 13253 * controller's memory. For reads, we DMA from the remote controller's 13254 * memory into our memory first, and then move it out to the FETD. 13255 */ 13256static void 13257ctl_datamove_remote(union ctl_io *io) 13258{ 13259 struct ctl_softc *softc; 13260 13261 softc = control_softc; 13262 13263 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 13264 13265 /* 13266 * Note that we look for an aborted I/O here, but don't do some of 13267 * the other checks that ctl_datamove() normally does. 13268 * We don't need to run the datamove delay code, since that should 13269 * have been done if need be on the other controller. 13270 */ 13271 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13272 printf("%s: tag 0x%04x on (%d:%d:%d:%d) aborted\n", __func__, 13273 io->scsiio.tag_num, io->io_hdr.nexus.initid.id, 13274 io->io_hdr.nexus.targ_port, 13275 io->io_hdr.nexus.targ_target.id, 13276 io->io_hdr.nexus.targ_lun); 13277 io->io_hdr.port_status = 31338; 13278 ctl_send_datamove_done(io, /*have_lock*/ 0); 13279 return; 13280 } 13281 13282 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) { 13283 ctl_datamove_remote_write(io); 13284 } else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN){ 13285 ctl_datamove_remote_read(io); 13286 } else { 13287 union ctl_ha_msg msg; 13288 struct scsi_sense_data *sense; 13289 uint8_t sks[3]; 13290 int retry_count; 13291 13292 memset(&msg, 0, sizeof(msg)); 13293 13294 msg.hdr.msg_type = CTL_MSG_BAD_JUJU; 13295 msg.hdr.status = CTL_SCSI_ERROR; 13296 msg.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 13297 13298 retry_count = 4243; 13299 13300 sense = &msg.scsi.sense_data; 13301 sks[0] = SSD_SCS_VALID; 13302 sks[1] = (retry_count >> 8) & 0xff; 13303 sks[2] = retry_count & 0xff; 13304 13305 /* "Internal target failure" */ 13306 scsi_set_sense_data(sense, 13307 /*sense_format*/ SSD_TYPE_NONE, 13308 /*current_error*/ 1, 13309 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 13310 /*asc*/ 0x44, 13311 /*ascq*/ 0x00, 13312 /*type*/ SSD_ELEM_SKS, 13313 /*size*/ sizeof(sks), 13314 /*data*/ sks, 13315 SSD_ELEM_NONE); 13316 13317 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13318 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13319 ctl_failover_io(io, /*have_lock*/ 1); 13320 return; 13321 } 13322 13323 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0) > 13324 CTL_HA_STATUS_SUCCESS) { 13325 /* XXX KDM what to do if this fails? */ 13326 } 13327 return; 13328 } 13329 13330} 13331 13332static int 13333ctl_process_done(union ctl_io *io) 13334{ 13335 struct ctl_lun *lun; 13336 struct ctl_softc *ctl_softc = control_softc; 13337 void (*fe_done)(union ctl_io *io); 13338 uint32_t targ_port = ctl_port_idx(io->io_hdr.nexus.targ_port); 13339 13340 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13341 13342 fe_done = 13343 control_softc->ctl_ports[targ_port]->fe_done; 13344 13345#ifdef CTL_TIME_IO 13346 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13347 char str[256]; 13348 char path_str[64]; 13349 struct sbuf sb; 13350 13351 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13352 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13353 13354 sbuf_cat(&sb, path_str); 13355 switch (io->io_hdr.io_type) { 13356 case CTL_IO_SCSI: 13357 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13358 sbuf_printf(&sb, "\n"); 13359 sbuf_cat(&sb, path_str); 13360 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13361 io->scsiio.tag_num, io->scsiio.tag_type); 13362 break; 13363 case CTL_IO_TASK: 13364 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13365 "Tag Type: %d\n", io->taskio.task_action, 13366 io->taskio.tag_num, io->taskio.tag_type); 13367 break; 13368 default: 13369 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13370 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13371 break; 13372 } 13373 sbuf_cat(&sb, path_str); 13374 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13375 (intmax_t)time_uptime - io->io_hdr.start_time); 13376 sbuf_finish(&sb); 13377 printf("%s", sbuf_data(&sb)); 13378 } 13379#endif /* CTL_TIME_IO */ 13380 13381 switch (io->io_hdr.io_type) { 13382 case CTL_IO_SCSI: 13383 break; 13384 case CTL_IO_TASK: 13385 if (bootverbose || (ctl_debug & CTL_DEBUG_INFO)) 13386 ctl_io_error_print(io, NULL); 13387 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 13388 ctl_free_io(io); 13389 else 13390 fe_done(io); 13391 return (CTL_RETVAL_COMPLETE); 13392 default: 13393 panic("ctl_process_done: invalid io type %d\n", 13394 io->io_hdr.io_type); 13395 break; /* NOTREACHED */ 13396 } 13397 13398 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13399 if (lun == NULL) { 13400 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13401 io->io_hdr.nexus.targ_mapped_lun)); 13402 goto bailout; 13403 } 13404 13405 mtx_lock(&lun->lun_lock); 13406 13407 /* 13408 * Check to see if we have any errors to inject here. We only 13409 * inject errors for commands that don't already have errors set. 13410 */ 13411 if ((STAILQ_FIRST(&lun->error_list) != NULL) && 13412 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) && 13413 ((io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0)) 13414 ctl_inject_error(lun, io); 13415 13416 /* 13417 * XXX KDM how do we treat commands that aren't completed 13418 * successfully? 13419 * 13420 * XXX KDM should we also track I/O latency? 13421 */ 13422 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13423 io->io_hdr.io_type == CTL_IO_SCSI) { 13424#ifdef CTL_TIME_IO 13425 struct bintime cur_bt; 13426#endif 13427 int type; 13428 13429 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13430 CTL_FLAG_DATA_IN) 13431 type = CTL_STATS_READ; 13432 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13433 CTL_FLAG_DATA_OUT) 13434 type = CTL_STATS_WRITE; 13435 else 13436 type = CTL_STATS_NO_IO; 13437 13438 lun->stats.ports[targ_port].bytes[type] += 13439 io->scsiio.kern_total_len; 13440 lun->stats.ports[targ_port].operations[type]++; 13441#ifdef CTL_TIME_IO 13442 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13443 &io->io_hdr.dma_bt); 13444 lun->stats.ports[targ_port].num_dmas[type] += 13445 io->io_hdr.num_dmas; 13446 getbintime(&cur_bt); 13447 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13448 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13449#endif 13450 } 13451 13452 /* 13453 * Remove this from the OOA queue. 13454 */ 13455 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13456 13457 /* 13458 * Run through the blocked queue on this LUN and see if anything 13459 * has become unblocked, now that this transaction is done. 13460 */ 13461 ctl_check_blocked(lun); 13462 13463 /* 13464 * If the LUN has been invalidated, free it if there is nothing 13465 * left on its OOA queue. 13466 */ 13467 if ((lun->flags & CTL_LUN_INVALID) 13468 && TAILQ_EMPTY(&lun->ooa_queue)) { 13469 mtx_unlock(&lun->lun_lock); 13470 mtx_lock(&ctl_softc->ctl_lock); 13471 ctl_free_lun(lun); 13472 mtx_unlock(&ctl_softc->ctl_lock); 13473 } else 13474 mtx_unlock(&lun->lun_lock); 13475 13476bailout: 13477 13478 /* 13479 * If this command has been aborted, make sure we set the status 13480 * properly. The FETD is responsible for freeing the I/O and doing 13481 * whatever it needs to do to clean up its state. 13482 */ 13483 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13484 ctl_set_task_aborted(&io->scsiio); 13485 13486 /* 13487 * If enabled, print command error status. 13488 * We don't print UAs unless debugging was enabled explicitly. 13489 */ 13490 do { 13491 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) 13492 break; 13493 if (!bootverbose && (ctl_debug & CTL_DEBUG_INFO) == 0) 13494 break; 13495 if ((ctl_debug & CTL_DEBUG_INFO) == 0 && 13496 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SCSI_ERROR) && 13497 (io->scsiio.scsi_status == SCSI_STATUS_CHECK_COND)) { 13498 int error_code, sense_key, asc, ascq; 13499 13500 scsi_extract_sense_len(&io->scsiio.sense_data, 13501 io->scsiio.sense_len, &error_code, &sense_key, 13502 &asc, &ascq, /*show_errors*/ 0); 13503 if (sense_key == SSD_KEY_UNIT_ATTENTION) 13504 break; 13505 } 13506 13507 ctl_io_error_print(io, NULL); 13508 } while (0); 13509 13510 /* 13511 * Tell the FETD or the other shelf controller we're done with this 13512 * command. Note that only SCSI commands get to this point. Task 13513 * management commands are completed above. 13514 * 13515 * We only send status to the other controller if we're in XFER 13516 * mode. In SER_ONLY mode, the I/O is done on the controller that 13517 * received the I/O (from CTL's perspective), and so the status is 13518 * generated there. 13519 * 13520 * XXX KDM if we hold the lock here, we could cause a deadlock 13521 * if the frontend comes back in in this context to queue 13522 * something. 13523 */ 13524 if ((ctl_softc->ha_mode == CTL_HA_MODE_XFER) 13525 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 13526 union ctl_ha_msg msg; 13527 13528 memset(&msg, 0, sizeof(msg)); 13529 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13530 msg.hdr.original_sc = io->io_hdr.original_sc; 13531 msg.hdr.nexus = io->io_hdr.nexus; 13532 msg.hdr.status = io->io_hdr.status; 13533 msg.scsi.scsi_status = io->scsiio.scsi_status; 13534 msg.scsi.tag_num = io->scsiio.tag_num; 13535 msg.scsi.tag_type = io->scsiio.tag_type; 13536 msg.scsi.sense_len = io->scsiio.sense_len; 13537 msg.scsi.sense_residual = io->scsiio.sense_residual; 13538 msg.scsi.residual = io->scsiio.residual; 13539 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13540 sizeof(io->scsiio.sense_data)); 13541 /* 13542 * We copy this whether or not this is an I/O-related 13543 * command. Otherwise, we'd have to go and check to see 13544 * whether it's a read/write command, and it really isn't 13545 * worth it. 13546 */ 13547 memcpy(&msg.scsi.lbalen, 13548 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 13549 sizeof(msg.scsi.lbalen)); 13550 13551 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13552 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13553 /* XXX do something here */ 13554 } 13555 13556 ctl_free_io(io); 13557 } else 13558 fe_done(io); 13559 13560 return (CTL_RETVAL_COMPLETE); 13561} 13562 13563#ifdef CTL_WITH_CA 13564/* 13565 * Front end should call this if it doesn't do autosense. When the request 13566 * sense comes back in from the initiator, we'll dequeue this and send it. 13567 */ 13568int 13569ctl_queue_sense(union ctl_io *io) 13570{ 13571 struct ctl_lun *lun; 13572 struct ctl_softc *ctl_softc; 13573 uint32_t initidx, targ_lun; 13574 13575 ctl_softc = control_softc; 13576 13577 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13578 13579 /* 13580 * LUN lookup will likely move to the ctl_work_thread() once we 13581 * have our new queueing infrastructure (that doesn't put things on 13582 * a per-LUN queue initially). That is so that we can handle 13583 * things like an INQUIRY to a LUN that we don't have enabled. We 13584 * can't deal with that right now. 13585 */ 13586 mtx_lock(&ctl_softc->ctl_lock); 13587 13588 /* 13589 * If we don't have a LUN for this, just toss the sense 13590 * information. 13591 */ 13592 targ_lun = io->io_hdr.nexus.targ_lun; 13593 targ_lun = ctl_map_lun(io->io_hdr.nexus.targ_port, targ_lun); 13594 if ((targ_lun < CTL_MAX_LUNS) 13595 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 13596 lun = ctl_softc->ctl_luns[targ_lun]; 13597 else 13598 goto bailout; 13599 13600 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13601 13602 mtx_lock(&lun->lun_lock); 13603 /* 13604 * Already have CA set for this LUN...toss the sense information. 13605 */ 13606 if (ctl_is_set(lun->have_ca, initidx)) { 13607 mtx_unlock(&lun->lun_lock); 13608 goto bailout; 13609 } 13610 13611 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13612 ctl_min(sizeof(lun->pending_sense[initidx]), 13613 sizeof(io->scsiio.sense_data))); 13614 ctl_set_mask(lun->have_ca, initidx); 13615 mtx_unlock(&lun->lun_lock); 13616 13617bailout: 13618 mtx_unlock(&ctl_softc->ctl_lock); 13619 13620 ctl_free_io(io); 13621 13622 return (CTL_RETVAL_COMPLETE); 13623} 13624#endif 13625 13626/* 13627 * Primary command inlet from frontend ports. All SCSI and task I/O 13628 * requests must go through this function. 13629 */ 13630int 13631ctl_queue(union ctl_io *io) 13632{ 13633 struct ctl_softc *ctl_softc; 13634 13635 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13636 13637 ctl_softc = control_softc; 13638 13639#ifdef CTL_TIME_IO 13640 io->io_hdr.start_time = time_uptime; 13641 getbintime(&io->io_hdr.start_bt); 13642#endif /* CTL_TIME_IO */ 13643 13644 /* Map FE-specific LUN ID into global one. */ 13645 io->io_hdr.nexus.targ_mapped_lun = 13646 ctl_map_lun(io->io_hdr.nexus.targ_port, io->io_hdr.nexus.targ_lun); 13647 13648 switch (io->io_hdr.io_type) { 13649 case CTL_IO_SCSI: 13650 case CTL_IO_TASK: 13651 if (ctl_debug & CTL_DEBUG_CDB) 13652 ctl_io_print(io); 13653 ctl_enqueue_incoming(io); 13654 break; 13655 default: 13656 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13657 return (EINVAL); 13658 } 13659 13660 return (CTL_RETVAL_COMPLETE); 13661} 13662 13663#ifdef CTL_IO_DELAY 13664static void 13665ctl_done_timer_wakeup(void *arg) 13666{ 13667 union ctl_io *io; 13668 13669 io = (union ctl_io *)arg; 13670 ctl_done(io); 13671} 13672#endif /* CTL_IO_DELAY */ 13673 13674void 13675ctl_done(union ctl_io *io) 13676{ 13677 struct ctl_softc *ctl_softc; 13678 13679 ctl_softc = control_softc; 13680 13681 /* 13682 * Enable this to catch duplicate completion issues. 13683 */ 13684#if 0 13685 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13686 printf("%s: type %d msg %d cdb %x iptl: " 13687 "%d:%d:%d:%d tag 0x%04x " 13688 "flag %#x status %x\n", 13689 __func__, 13690 io->io_hdr.io_type, 13691 io->io_hdr.msg_type, 13692 io->scsiio.cdb[0], 13693 io->io_hdr.nexus.initid.id, 13694 io->io_hdr.nexus.targ_port, 13695 io->io_hdr.nexus.targ_target.id, 13696 io->io_hdr.nexus.targ_lun, 13697 (io->io_hdr.io_type == 13698 CTL_IO_TASK) ? 13699 io->taskio.tag_num : 13700 io->scsiio.tag_num, 13701 io->io_hdr.flags, 13702 io->io_hdr.status); 13703 } else 13704 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13705#endif 13706 13707 /* 13708 * This is an internal copy of an I/O, and should not go through 13709 * the normal done processing logic. 13710 */ 13711 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13712 return; 13713 13714 /* 13715 * We need to send a msg to the serializing shelf to finish the IO 13716 * as well. We don't send a finish message to the other shelf if 13717 * this is a task management command. Task management commands 13718 * aren't serialized in the OOA queue, but rather just executed on 13719 * both shelf controllers for commands that originated on that 13720 * controller. 13721 */ 13722 if ((io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC) 13723 && (io->io_hdr.io_type != CTL_IO_TASK)) { 13724 union ctl_ha_msg msg_io; 13725 13726 msg_io.hdr.msg_type = CTL_MSG_FINISH_IO; 13727 msg_io.hdr.serializing_sc = io->io_hdr.serializing_sc; 13728 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_io, 13729 sizeof(msg_io), 0 ) != CTL_HA_STATUS_SUCCESS) { 13730 } 13731 /* continue on to finish IO */ 13732 } 13733#ifdef CTL_IO_DELAY 13734 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13735 struct ctl_lun *lun; 13736 13737 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13738 13739 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13740 } else { 13741 struct ctl_lun *lun; 13742 13743 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13744 13745 if ((lun != NULL) 13746 && (lun->delay_info.done_delay > 0)) { 13747 struct callout *callout; 13748 13749 callout = (struct callout *)&io->io_hdr.timer_bytes; 13750 callout_init(callout, /*mpsafe*/ 1); 13751 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13752 callout_reset(callout, 13753 lun->delay_info.done_delay * hz, 13754 ctl_done_timer_wakeup, io); 13755 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13756 lun->delay_info.done_delay = 0; 13757 return; 13758 } 13759 } 13760#endif /* CTL_IO_DELAY */ 13761 13762 ctl_enqueue_done(io); 13763} 13764 13765int 13766ctl_isc(struct ctl_scsiio *ctsio) 13767{ 13768 struct ctl_lun *lun; 13769 int retval; 13770 13771 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13772 13773 CTL_DEBUG_PRINT(("ctl_isc: command: %02x\n", ctsio->cdb[0])); 13774 13775 CTL_DEBUG_PRINT(("ctl_isc: calling data_submit()\n")); 13776 13777 retval = lun->backend->data_submit((union ctl_io *)ctsio); 13778 13779 return (retval); 13780} 13781 13782 13783static void 13784ctl_work_thread(void *arg) 13785{ 13786 struct ctl_thread *thr = (struct ctl_thread *)arg; 13787 struct ctl_softc *softc = thr->ctl_softc; 13788 union ctl_io *io; 13789 int retval; 13790 13791 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13792 13793 for (;;) { 13794 retval = 0; 13795 13796 /* 13797 * We handle the queues in this order: 13798 * - ISC 13799 * - done queue (to free up resources, unblock other commands) 13800 * - RtR queue 13801 * - incoming queue 13802 * 13803 * If those queues are empty, we break out of the loop and 13804 * go to sleep. 13805 */ 13806 mtx_lock(&thr->queue_lock); 13807 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13808 if (io != NULL) { 13809 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13810 mtx_unlock(&thr->queue_lock); 13811 ctl_handle_isc(io); 13812 continue; 13813 } 13814 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13815 if (io != NULL) { 13816 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13817 /* clear any blocked commands, call fe_done */ 13818 mtx_unlock(&thr->queue_lock); 13819 retval = ctl_process_done(io); 13820 continue; 13821 } 13822 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13823 if (io != NULL) { 13824 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13825 mtx_unlock(&thr->queue_lock); 13826 if (io->io_hdr.io_type == CTL_IO_TASK) 13827 ctl_run_task(io); 13828 else 13829 ctl_scsiio_precheck(softc, &io->scsiio); 13830 continue; 13831 } 13832 if (!ctl_pause_rtr) { 13833 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13834 if (io != NULL) { 13835 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13836 mtx_unlock(&thr->queue_lock); 13837 retval = ctl_scsiio(&io->scsiio); 13838 if (retval != CTL_RETVAL_COMPLETE) 13839 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13840 continue; 13841 } 13842 } 13843 13844 /* Sleep until we have something to do. */ 13845 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13846 } 13847} 13848 13849static void 13850ctl_lun_thread(void *arg) 13851{ 13852 struct ctl_softc *softc = (struct ctl_softc *)arg; 13853 struct ctl_be_lun *be_lun; 13854 int retval; 13855 13856 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 13857 13858 for (;;) { 13859 retval = 0; 13860 mtx_lock(&softc->ctl_lock); 13861 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 13862 if (be_lun != NULL) { 13863 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 13864 mtx_unlock(&softc->ctl_lock); 13865 ctl_create_lun(be_lun); 13866 continue; 13867 } 13868 13869 /* Sleep until we have something to do. */ 13870 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 13871 PDROP | PRIBIO, "-", 0); 13872 } 13873} 13874 13875static void 13876ctl_thresh_thread(void *arg) 13877{ 13878 struct ctl_softc *softc = (struct ctl_softc *)arg; 13879 struct ctl_lun *lun; 13880 struct ctl_be_lun *be_lun; 13881 struct scsi_da_rw_recovery_page *rwpage; 13882 struct ctl_logical_block_provisioning_page *page; 13883 const char *attr; 13884 uint64_t thres, val; 13885 int i, e; 13886 13887 CTL_DEBUG_PRINT(("ctl_thresh_thread starting\n")); 13888 13889 for (;;) { 13890 mtx_lock(&softc->ctl_lock); 13891 STAILQ_FOREACH(lun, &softc->lun_list, links) { 13892 be_lun = lun->be_lun; 13893 if ((lun->flags & CTL_LUN_DISABLED) || 13894 (lun->flags & CTL_LUN_OFFLINE) || 13895 (be_lun->flags & CTL_LUN_FLAG_UNMAP) == 0 || 13896 lun->backend->lun_attr == NULL) 13897 continue; 13898 rwpage = &lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT]; 13899 if ((rwpage->byte8 & SMS_RWER_LBPERE) == 0) 13900 continue; 13901 e = 0; 13902 page = &lun->mode_pages.lbp_page[CTL_PAGE_CURRENT]; 13903 for (i = 0; i < CTL_NUM_LBP_THRESH; i++) { 13904 if ((page->descr[i].flags & SLBPPD_ENABLED) == 0) 13905 continue; 13906 thres = scsi_4btoul(page->descr[i].count); 13907 thres <<= CTL_LBP_EXPONENT; 13908 switch (page->descr[i].resource) { 13909 case 0x01: 13910 attr = "blocksavail"; 13911 break; 13912 case 0x02: 13913 attr = "blocksused"; 13914 break; 13915 case 0xf1: 13916 attr = "poolblocksavail"; 13917 break; 13918 case 0xf2: 13919 attr = "poolblocksused"; 13920 break; 13921 default: 13922 continue; 13923 } 13924 mtx_unlock(&softc->ctl_lock); // XXX 13925 val = lun->backend->lun_attr( 13926 lun->be_lun->be_lun, attr); 13927 mtx_lock(&softc->ctl_lock); 13928 if (val == UINT64_MAX) 13929 continue; 13930 if ((page->descr[i].flags & SLBPPD_ARMING_MASK) 13931 == SLBPPD_ARMING_INC) 13932 e |= (val >= thres); 13933 else 13934 e |= (val <= thres); 13935 } 13936 mtx_lock(&lun->lun_lock); 13937 if (e) { 13938 if (lun->lasttpt == 0 || 13939 time_uptime - lun->lasttpt >= CTL_LBP_UA_PERIOD) { 13940 lun->lasttpt = time_uptime; 13941 for (i = 0; i < CTL_MAX_INITIATORS; i++) 13942 lun->pending_ua[i] |= 13943 CTL_UA_THIN_PROV_THRES; 13944 } 13945 } else { 13946 lun->lasttpt = 0; 13947 for (i = 0; i < CTL_MAX_INITIATORS; i++) 13948 lun->pending_ua[i] &= ~CTL_UA_THIN_PROV_THRES; 13949 } 13950 mtx_unlock(&lun->lun_lock); 13951 } 13952 mtx_unlock(&softc->ctl_lock); 13953 pause("-", CTL_LBP_PERIOD * hz); 13954 } 13955} 13956 13957static void 13958ctl_enqueue_incoming(union ctl_io *io) 13959{ 13960 struct ctl_softc *softc = control_softc; 13961 struct ctl_thread *thr; 13962 u_int idx; 13963 13964 idx = (io->io_hdr.nexus.targ_port * 127 + 13965 io->io_hdr.nexus.initid.id) % worker_threads; 13966 thr = &softc->threads[idx]; 13967 mtx_lock(&thr->queue_lock); 13968 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 13969 mtx_unlock(&thr->queue_lock); 13970 wakeup(thr); 13971} 13972 13973static void 13974ctl_enqueue_rtr(union ctl_io *io) 13975{ 13976 struct ctl_softc *softc = control_softc; 13977 struct ctl_thread *thr; 13978 13979 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13980 mtx_lock(&thr->queue_lock); 13981 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 13982 mtx_unlock(&thr->queue_lock); 13983 wakeup(thr); 13984} 13985 13986static void 13987ctl_enqueue_done(union ctl_io *io) 13988{ 13989 struct ctl_softc *softc = control_softc; 13990 struct ctl_thread *thr; 13991 13992 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13993 mtx_lock(&thr->queue_lock); 13994 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 13995 mtx_unlock(&thr->queue_lock); 13996 wakeup(thr); 13997} 13998 13999static void 14000ctl_enqueue_isc(union ctl_io *io) 14001{ 14002 struct ctl_softc *softc = control_softc; 14003 struct ctl_thread *thr; 14004 14005 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14006 mtx_lock(&thr->queue_lock); 14007 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 14008 mtx_unlock(&thr->queue_lock); 14009 wakeup(thr); 14010} 14011 14012/* Initialization and failover */ 14013 14014void 14015ctl_init_isc_msg(void) 14016{ 14017 printf("CTL: Still calling this thing\n"); 14018} 14019 14020/* 14021 * Init component 14022 * Initializes component into configuration defined by bootMode 14023 * (see hasc-sv.c) 14024 * returns hasc_Status: 14025 * OK 14026 * ERROR - fatal error 14027 */ 14028static ctl_ha_comp_status 14029ctl_isc_init(struct ctl_ha_component *c) 14030{ 14031 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14032 14033 c->status = ret; 14034 return ret; 14035} 14036 14037/* Start component 14038 * Starts component in state requested. If component starts successfully, 14039 * it must set its own state to the requestrd state 14040 * When requested state is HASC_STATE_HA, the component may refine it 14041 * by adding _SLAVE or _MASTER flags. 14042 * Currently allowed state transitions are: 14043 * UNKNOWN->HA - initial startup 14044 * UNKNOWN->SINGLE - initial startup when no parter detected 14045 * HA->SINGLE - failover 14046 * returns ctl_ha_comp_status: 14047 * OK - component successfully started in requested state 14048 * FAILED - could not start the requested state, failover may 14049 * be possible 14050 * ERROR - fatal error detected, no future startup possible 14051 */ 14052static ctl_ha_comp_status 14053ctl_isc_start(struct ctl_ha_component *c, ctl_ha_state state) 14054{ 14055 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14056 14057 printf("%s: go\n", __func__); 14058 14059 // UNKNOWN->HA or UNKNOWN->SINGLE (bootstrap) 14060 if (c->state == CTL_HA_STATE_UNKNOWN ) { 14061 control_softc->is_single = 0; 14062 if (ctl_ha_msg_create(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 14063 != CTL_HA_STATUS_SUCCESS) { 14064 printf("ctl_isc_start: ctl_ha_msg_create failed.\n"); 14065 ret = CTL_HA_COMP_STATUS_ERROR; 14066 } 14067 } else if (CTL_HA_STATE_IS_HA(c->state) 14068 && CTL_HA_STATE_IS_SINGLE(state)){ 14069 // HA->SINGLE transition 14070 ctl_failover(); 14071 control_softc->is_single = 1; 14072 } else { 14073 printf("ctl_isc_start:Invalid state transition %X->%X\n", 14074 c->state, state); 14075 ret = CTL_HA_COMP_STATUS_ERROR; 14076 } 14077 if (CTL_HA_STATE_IS_SINGLE(state)) 14078 control_softc->is_single = 1; 14079 14080 c->state = state; 14081 c->status = ret; 14082 return ret; 14083} 14084 14085/* 14086 * Quiesce component 14087 * The component must clear any error conditions (set status to OK) and 14088 * prepare itself to another Start call 14089 * returns ctl_ha_comp_status: 14090 * OK 14091 * ERROR 14092 */ 14093static ctl_ha_comp_status 14094ctl_isc_quiesce(struct ctl_ha_component *c) 14095{ 14096 int ret = CTL_HA_COMP_STATUS_OK; 14097 14098 ctl_pause_rtr = 1; 14099 c->status = ret; 14100 return ret; 14101} 14102 14103struct ctl_ha_component ctl_ha_component_ctlisc = 14104{ 14105 .name = "CTL ISC", 14106 .state = CTL_HA_STATE_UNKNOWN, 14107 .init = ctl_isc_init, 14108 .start = ctl_isc_start, 14109 .quiesce = ctl_isc_quiesce 14110}; 14111 14112/* 14113 * vim: ts=8 14114 */ 14115