ctl.c revision 284627
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 * $Id$ 35 */ 36/* 37 * CAM Target Layer, a SCSI device emulation subsystem. 38 * 39 * Author: Ken Merry <ken@FreeBSD.org> 40 */ 41 42#define _CTL_C 43 44#include <sys/cdefs.h> 45__FBSDID("$FreeBSD: head/sys/cam/ctl/ctl.c 284627 2015-06-20 07:33:06Z mav $"); 46 47#include <sys/param.h> 48#include <sys/systm.h> 49#include <sys/ctype.h> 50#include <sys/kernel.h> 51#include <sys/types.h> 52#include <sys/kthread.h> 53#include <sys/bio.h> 54#include <sys/fcntl.h> 55#include <sys/lock.h> 56#include <sys/module.h> 57#include <sys/mutex.h> 58#include <sys/condvar.h> 59#include <sys/malloc.h> 60#include <sys/conf.h> 61#include <sys/ioccom.h> 62#include <sys/queue.h> 63#include <sys/sbuf.h> 64#include <sys/smp.h> 65#include <sys/endian.h> 66#include <sys/sysctl.h> 67#include <vm/uma.h> 68 69#include <cam/cam.h> 70#include <cam/scsi/scsi_all.h> 71#include <cam/scsi/scsi_da.h> 72#include <cam/ctl/ctl_io.h> 73#include <cam/ctl/ctl.h> 74#include <cam/ctl/ctl_frontend.h> 75#include <cam/ctl/ctl_frontend_internal.h> 76#include <cam/ctl/ctl_util.h> 77#include <cam/ctl/ctl_backend.h> 78#include <cam/ctl/ctl_ioctl.h> 79#include <cam/ctl/ctl_ha.h> 80#include <cam/ctl/ctl_private.h> 81#include <cam/ctl/ctl_debug.h> 82#include <cam/ctl/ctl_scsi_all.h> 83#include <cam/ctl/ctl_error.h> 84 85struct ctl_softc *control_softc = NULL; 86 87/* 88 * Size and alignment macros needed for Copan-specific HA hardware. These 89 * can go away when the HA code is re-written, and uses busdma for any 90 * hardware. 91 */ 92#define CTL_ALIGN_8B(target, source, type) \ 93 if (((uint32_t)source & 0x7) != 0) \ 94 target = (type)(source + (0x8 - ((uint32_t)source & 0x7)));\ 95 else \ 96 target = (type)source; 97 98#define CTL_SIZE_8B(target, size) \ 99 if ((size & 0x7) != 0) \ 100 target = size + (0x8 - (size & 0x7)); \ 101 else \ 102 target = size; 103 104#define CTL_ALIGN_8B_MARGIN 16 105 106/* 107 * Template mode pages. 108 */ 109 110/* 111 * Note that these are default values only. The actual values will be 112 * filled in when the user does a mode sense. 113 */ 114const static struct copan_debugconf_subpage debugconf_page_default = { 115 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 116 DBGCNF_SUBPAGE_CODE, /* subpage */ 117 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 118 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 119 DBGCNF_VERSION, /* page_version */ 120 {CTL_TIME_IO_DEFAULT_SECS>>8, 121 CTL_TIME_IO_DEFAULT_SECS>>0}, /* ctl_time_io_secs */ 122}; 123 124const static struct copan_debugconf_subpage debugconf_page_changeable = { 125 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 126 DBGCNF_SUBPAGE_CODE, /* subpage */ 127 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 128 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 129 0, /* page_version */ 130 {0xff,0xff}, /* ctl_time_io_secs */ 131}; 132 133const static struct scsi_da_rw_recovery_page rw_er_page_default = { 134 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 135 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 136 /*byte3*/SMS_RWER_AWRE|SMS_RWER_ARRE, 137 /*read_retry_count*/0, 138 /*correction_span*/0, 139 /*head_offset_count*/0, 140 /*data_strobe_offset_cnt*/0, 141 /*byte8*/SMS_RWER_LBPERE, 142 /*write_retry_count*/0, 143 /*reserved2*/0, 144 /*recovery_time_limit*/{0, 0}, 145}; 146 147const static struct scsi_da_rw_recovery_page rw_er_page_changeable = { 148 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 149 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 150 /*byte3*/0, 151 /*read_retry_count*/0, 152 /*correction_span*/0, 153 /*head_offset_count*/0, 154 /*data_strobe_offset_cnt*/0, 155 /*byte8*/0, 156 /*write_retry_count*/0, 157 /*reserved2*/0, 158 /*recovery_time_limit*/{0, 0}, 159}; 160 161const static struct scsi_format_page format_page_default = { 162 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 163 /*page_length*/sizeof(struct scsi_format_page) - 2, 164 /*tracks_per_zone*/ {0, 0}, 165 /*alt_sectors_per_zone*/ {0, 0}, 166 /*alt_tracks_per_zone*/ {0, 0}, 167 /*alt_tracks_per_lun*/ {0, 0}, 168 /*sectors_per_track*/ {(CTL_DEFAULT_SECTORS_PER_TRACK >> 8) & 0xff, 169 CTL_DEFAULT_SECTORS_PER_TRACK & 0xff}, 170 /*bytes_per_sector*/ {0, 0}, 171 /*interleave*/ {0, 0}, 172 /*track_skew*/ {0, 0}, 173 /*cylinder_skew*/ {0, 0}, 174 /*flags*/ SFP_HSEC, 175 /*reserved*/ {0, 0, 0} 176}; 177 178const static struct scsi_format_page format_page_changeable = { 179 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 180 /*page_length*/sizeof(struct scsi_format_page) - 2, 181 /*tracks_per_zone*/ {0, 0}, 182 /*alt_sectors_per_zone*/ {0, 0}, 183 /*alt_tracks_per_zone*/ {0, 0}, 184 /*alt_tracks_per_lun*/ {0, 0}, 185 /*sectors_per_track*/ {0, 0}, 186 /*bytes_per_sector*/ {0, 0}, 187 /*interleave*/ {0, 0}, 188 /*track_skew*/ {0, 0}, 189 /*cylinder_skew*/ {0, 0}, 190 /*flags*/ 0, 191 /*reserved*/ {0, 0, 0} 192}; 193 194const static struct scsi_rigid_disk_page rigid_disk_page_default = { 195 /*page_code*/SMS_RIGID_DISK_PAGE, 196 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 197 /*cylinders*/ {0, 0, 0}, 198 /*heads*/ CTL_DEFAULT_HEADS, 199 /*start_write_precomp*/ {0, 0, 0}, 200 /*start_reduced_current*/ {0, 0, 0}, 201 /*step_rate*/ {0, 0}, 202 /*landing_zone_cylinder*/ {0, 0, 0}, 203 /*rpl*/ SRDP_RPL_DISABLED, 204 /*rotational_offset*/ 0, 205 /*reserved1*/ 0, 206 /*rotation_rate*/ {(CTL_DEFAULT_ROTATION_RATE >> 8) & 0xff, 207 CTL_DEFAULT_ROTATION_RATE & 0xff}, 208 /*reserved2*/ {0, 0} 209}; 210 211const static struct scsi_rigid_disk_page rigid_disk_page_changeable = { 212 /*page_code*/SMS_RIGID_DISK_PAGE, 213 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 214 /*cylinders*/ {0, 0, 0}, 215 /*heads*/ 0, 216 /*start_write_precomp*/ {0, 0, 0}, 217 /*start_reduced_current*/ {0, 0, 0}, 218 /*step_rate*/ {0, 0}, 219 /*landing_zone_cylinder*/ {0, 0, 0}, 220 /*rpl*/ 0, 221 /*rotational_offset*/ 0, 222 /*reserved1*/ 0, 223 /*rotation_rate*/ {0, 0}, 224 /*reserved2*/ {0, 0} 225}; 226 227const static struct scsi_caching_page caching_page_default = { 228 /*page_code*/SMS_CACHING_PAGE, 229 /*page_length*/sizeof(struct scsi_caching_page) - 2, 230 /*flags1*/ SCP_DISC | SCP_WCE, 231 /*ret_priority*/ 0, 232 /*disable_pf_transfer_len*/ {0xff, 0xff}, 233 /*min_prefetch*/ {0, 0}, 234 /*max_prefetch*/ {0xff, 0xff}, 235 /*max_pf_ceiling*/ {0xff, 0xff}, 236 /*flags2*/ 0, 237 /*cache_segments*/ 0, 238 /*cache_seg_size*/ {0, 0}, 239 /*reserved*/ 0, 240 /*non_cache_seg_size*/ {0, 0, 0} 241}; 242 243const static struct scsi_caching_page caching_page_changeable = { 244 /*page_code*/SMS_CACHING_PAGE, 245 /*page_length*/sizeof(struct scsi_caching_page) - 2, 246 /*flags1*/ SCP_WCE | SCP_RCD, 247 /*ret_priority*/ 0, 248 /*disable_pf_transfer_len*/ {0, 0}, 249 /*min_prefetch*/ {0, 0}, 250 /*max_prefetch*/ {0, 0}, 251 /*max_pf_ceiling*/ {0, 0}, 252 /*flags2*/ 0, 253 /*cache_segments*/ 0, 254 /*cache_seg_size*/ {0, 0}, 255 /*reserved*/ 0, 256 /*non_cache_seg_size*/ {0, 0, 0} 257}; 258 259const static struct scsi_control_page control_page_default = { 260 /*page_code*/SMS_CONTROL_MODE_PAGE, 261 /*page_length*/sizeof(struct scsi_control_page) - 2, 262 /*rlec*/0, 263 /*queue_flags*/SCP_QUEUE_ALG_RESTRICTED, 264 /*eca_and_aen*/0, 265 /*flags4*/SCP_TAS, 266 /*aen_holdoff_period*/{0, 0}, 267 /*busy_timeout_period*/{0, 0}, 268 /*extended_selftest_completion_time*/{0, 0} 269}; 270 271const static struct scsi_control_page control_page_changeable = { 272 /*page_code*/SMS_CONTROL_MODE_PAGE, 273 /*page_length*/sizeof(struct scsi_control_page) - 2, 274 /*rlec*/SCP_DSENSE, 275 /*queue_flags*/SCP_QUEUE_ALG_MASK, 276 /*eca_and_aen*/SCP_SWP, 277 /*flags4*/0, 278 /*aen_holdoff_period*/{0, 0}, 279 /*busy_timeout_period*/{0, 0}, 280 /*extended_selftest_completion_time*/{0, 0} 281}; 282 283const static struct scsi_info_exceptions_page ie_page_default = { 284 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 285 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 286 /*info_flags*/SIEP_FLAGS_DEXCPT, 287 /*mrie*/0, 288 /*interval_timer*/{0, 0, 0, 0}, 289 /*report_count*/{0, 0, 0, 0} 290}; 291 292const static struct scsi_info_exceptions_page ie_page_changeable = { 293 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 294 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 295 /*info_flags*/0, 296 /*mrie*/0, 297 /*interval_timer*/{0, 0, 0, 0}, 298 /*report_count*/{0, 0, 0, 0} 299}; 300 301#define CTL_LBPM_LEN (sizeof(struct ctl_logical_block_provisioning_page) - 4) 302 303const static struct ctl_logical_block_provisioning_page lbp_page_default = {{ 304 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 305 /*subpage_code*/0x02, 306 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 307 /*flags*/0, 308 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 309 /*descr*/{}}, 310 {{/*flags*/0, 311 /*resource*/0x01, 312 /*reserved*/{0, 0}, 313 /*count*/{0, 0, 0, 0}}, 314 {/*flags*/0, 315 /*resource*/0x02, 316 /*reserved*/{0, 0}, 317 /*count*/{0, 0, 0, 0}}, 318 {/*flags*/0, 319 /*resource*/0xf1, 320 /*reserved*/{0, 0}, 321 /*count*/{0, 0, 0, 0}}, 322 {/*flags*/0, 323 /*resource*/0xf2, 324 /*reserved*/{0, 0}, 325 /*count*/{0, 0, 0, 0}} 326 } 327}; 328 329const static struct ctl_logical_block_provisioning_page lbp_page_changeable = {{ 330 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 331 /*subpage_code*/0x02, 332 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 333 /*flags*/0, 334 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 335 /*descr*/{}}, 336 {{/*flags*/0, 337 /*resource*/0, 338 /*reserved*/{0, 0}, 339 /*count*/{0, 0, 0, 0}}, 340 {/*flags*/0, 341 /*resource*/0, 342 /*reserved*/{0, 0}, 343 /*count*/{0, 0, 0, 0}}, 344 {/*flags*/0, 345 /*resource*/0, 346 /*reserved*/{0, 0}, 347 /*count*/{0, 0, 0, 0}}, 348 {/*flags*/0, 349 /*resource*/0, 350 /*reserved*/{0, 0}, 351 /*count*/{0, 0, 0, 0}} 352 } 353}; 354 355/* 356 * XXX KDM move these into the softc. 357 */ 358static int rcv_sync_msg; 359static uint8_t ctl_pause_rtr; 360 361SYSCTL_NODE(_kern_cam, OID_AUTO, ctl, CTLFLAG_RD, 0, "CAM Target Layer"); 362static int worker_threads = -1; 363SYSCTL_INT(_kern_cam_ctl, OID_AUTO, worker_threads, CTLFLAG_RDTUN, 364 &worker_threads, 1, "Number of worker threads"); 365static int ctl_debug = CTL_DEBUG_NONE; 366SYSCTL_INT(_kern_cam_ctl, OID_AUTO, debug, CTLFLAG_RWTUN, 367 &ctl_debug, 0, "Enabled debug flags"); 368 369/* 370 * Supported pages (0x00), Serial number (0x80), Device ID (0x83), 371 * Extended INQUIRY Data (0x86), Mode Page Policy (0x87), 372 * SCSI Ports (0x88), Third-party Copy (0x8F), Block limits (0xB0), 373 * Block Device Characteristics (0xB1) and Logical Block Provisioning (0xB2) 374 */ 375#define SCSI_EVPD_NUM_SUPPORTED_PAGES 10 376 377static void ctl_isc_event_handler(ctl_ha_channel chanel, ctl_ha_event event, 378 int param); 379static void ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest); 380static int ctl_init(void); 381void ctl_shutdown(void); 382static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td); 383static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td); 384static void ctl_ioctl_online(void *arg); 385static void ctl_ioctl_offline(void *arg); 386static int ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id); 387static int ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id); 388static int ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio); 389static int ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio); 390static int ctl_ioctl_submit_wait(union ctl_io *io); 391static void ctl_ioctl_datamove(union ctl_io *io); 392static void ctl_ioctl_done(union ctl_io *io); 393static void ctl_ioctl_hard_startstop_callback(void *arg, 394 struct cfi_metatask *metatask); 395static void ctl_ioctl_bbrread_callback(void *arg,struct cfi_metatask *metatask); 396static int ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 397 struct ctl_ooa *ooa_hdr, 398 struct ctl_ooa_entry *kern_entries); 399static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 400 struct thread *td); 401static int ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 402 struct ctl_be_lun *be_lun, struct ctl_id target_id); 403static int ctl_free_lun(struct ctl_lun *lun); 404static void ctl_create_lun(struct ctl_be_lun *be_lun); 405static struct ctl_port * ctl_io_port(struct ctl_io_hdr *io_hdr); 406/** 407static void ctl_failover_change_pages(struct ctl_softc *softc, 408 struct ctl_scsiio *ctsio, int master); 409**/ 410 411static int ctl_do_mode_select(union ctl_io *io); 412static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, 413 uint64_t res_key, uint64_t sa_res_key, 414 uint8_t type, uint32_t residx, 415 struct ctl_scsiio *ctsio, 416 struct scsi_per_res_out *cdb, 417 struct scsi_per_res_out_parms* param); 418static void ctl_pro_preempt_other(struct ctl_lun *lun, 419 union ctl_ha_msg *msg); 420static void ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg); 421static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 422static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 423static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 424static int ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len); 425static int ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len); 426static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, 427 int alloc_len); 428static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 429 int alloc_len); 430static int ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len); 431static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 432static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 433static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 434static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len); 435static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2, 436 bool seq); 437static ctl_action ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2); 438static ctl_action ctl_check_for_blockage(struct ctl_lun *lun, 439 union ctl_io *pending_io, union ctl_io *ooa_io); 440static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 441 union ctl_io *starting_io); 442static int ctl_check_blocked(struct ctl_lun *lun); 443static int ctl_scsiio_lun_check(struct ctl_lun *lun, 444 const struct ctl_cmd_entry *entry, 445 struct ctl_scsiio *ctsio); 446//static int ctl_check_rtr(union ctl_io *pending_io, struct ctl_softc *softc); 447static void ctl_failover(void); 448static void ctl_clear_ua(struct ctl_softc *ctl_softc, uint32_t initidx, 449 ctl_ua_type ua_type); 450static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 451 struct ctl_scsiio *ctsio); 452static int ctl_scsiio(struct ctl_scsiio *ctsio); 453 454static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 455static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 456 ctl_ua_type ua_type); 457static int ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, 458 ctl_ua_type ua_type); 459static int ctl_abort_task(union ctl_io *io); 460static int ctl_abort_task_set(union ctl_io *io); 461static int ctl_i_t_nexus_reset(union ctl_io *io); 462static void ctl_run_task(union ctl_io *io); 463#ifdef CTL_IO_DELAY 464static void ctl_datamove_timer_wakeup(void *arg); 465static void ctl_done_timer_wakeup(void *arg); 466#endif /* CTL_IO_DELAY */ 467 468static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 469static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 470static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 471static void ctl_datamove_remote_write(union ctl_io *io); 472static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 473static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 474static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 475static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 476 ctl_ha_dt_cb callback); 477static void ctl_datamove_remote_read(union ctl_io *io); 478static void ctl_datamove_remote(union ctl_io *io); 479static int ctl_process_done(union ctl_io *io); 480static void ctl_lun_thread(void *arg); 481static void ctl_thresh_thread(void *arg); 482static void ctl_work_thread(void *arg); 483static void ctl_enqueue_incoming(union ctl_io *io); 484static void ctl_enqueue_rtr(union ctl_io *io); 485static void ctl_enqueue_done(union ctl_io *io); 486static void ctl_enqueue_isc(union ctl_io *io); 487static const struct ctl_cmd_entry * 488 ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa); 489static const struct ctl_cmd_entry * 490 ctl_validate_command(struct ctl_scsiio *ctsio); 491static int ctl_cmd_applicable(uint8_t lun_type, 492 const struct ctl_cmd_entry *entry); 493 494/* 495 * Load the serialization table. This isn't very pretty, but is probably 496 * the easiest way to do it. 497 */ 498#include "ctl_ser_table.c" 499 500/* 501 * We only need to define open, close and ioctl routines for this driver. 502 */ 503static struct cdevsw ctl_cdevsw = { 504 .d_version = D_VERSION, 505 .d_flags = 0, 506 .d_open = ctl_open, 507 .d_close = ctl_close, 508 .d_ioctl = ctl_ioctl, 509 .d_name = "ctl", 510}; 511 512 513MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 514MALLOC_DEFINE(M_CTLIO, "ctlio", "Memory used for CTL requests"); 515 516static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 517 518static moduledata_t ctl_moduledata = { 519 "ctl", 520 ctl_module_event_handler, 521 NULL 522}; 523 524DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 525MODULE_VERSION(ctl, 1); 526 527static struct ctl_frontend ioctl_frontend = 528{ 529 .name = "ioctl", 530}; 531 532static void 533ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 534 union ctl_ha_msg *msg_info) 535{ 536 struct ctl_scsiio *ctsio; 537 538 if (msg_info->hdr.original_sc == NULL) { 539 printf("%s: original_sc == NULL!\n", __func__); 540 /* XXX KDM now what? */ 541 return; 542 } 543 544 ctsio = &msg_info->hdr.original_sc->scsiio; 545 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 546 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 547 ctsio->io_hdr.status = msg_info->hdr.status; 548 ctsio->scsi_status = msg_info->scsi.scsi_status; 549 ctsio->sense_len = msg_info->scsi.sense_len; 550 ctsio->sense_residual = msg_info->scsi.sense_residual; 551 ctsio->residual = msg_info->scsi.residual; 552 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 553 sizeof(ctsio->sense_data)); 554 memcpy(&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 555 &msg_info->scsi.lbalen, sizeof(msg_info->scsi.lbalen)); 556 ctl_enqueue_isc((union ctl_io *)ctsio); 557} 558 559static void 560ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 561 union ctl_ha_msg *msg_info) 562{ 563 struct ctl_scsiio *ctsio; 564 565 if (msg_info->hdr.serializing_sc == NULL) { 566 printf("%s: serializing_sc == NULL!\n", __func__); 567 /* XXX KDM now what? */ 568 return; 569 } 570 571 ctsio = &msg_info->hdr.serializing_sc->scsiio; 572#if 0 573 /* 574 * Attempt to catch the situation where an I/O has 575 * been freed, and we're using it again. 576 */ 577 if (ctsio->io_hdr.io_type == 0xff) { 578 union ctl_io *tmp_io; 579 tmp_io = (union ctl_io *)ctsio; 580 printf("%s: %p use after free!\n", __func__, 581 ctsio); 582 printf("%s: type %d msg %d cdb %x iptl: " 583 "%d:%d:%d:%d tag 0x%04x " 584 "flag %#x status %x\n", 585 __func__, 586 tmp_io->io_hdr.io_type, 587 tmp_io->io_hdr.msg_type, 588 tmp_io->scsiio.cdb[0], 589 tmp_io->io_hdr.nexus.initid.id, 590 tmp_io->io_hdr.nexus.targ_port, 591 tmp_io->io_hdr.nexus.targ_target.id, 592 tmp_io->io_hdr.nexus.targ_lun, 593 (tmp_io->io_hdr.io_type == 594 CTL_IO_TASK) ? 595 tmp_io->taskio.tag_num : 596 tmp_io->scsiio.tag_num, 597 tmp_io->io_hdr.flags, 598 tmp_io->io_hdr.status); 599 } 600#endif 601 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 602 ctl_enqueue_isc((union ctl_io *)ctsio); 603} 604 605/* 606 * ISC (Inter Shelf Communication) event handler. Events from the HA 607 * subsystem come in here. 608 */ 609static void 610ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 611{ 612 struct ctl_softc *softc; 613 union ctl_io *io; 614 struct ctl_prio *presio; 615 ctl_ha_status isc_status; 616 617 softc = control_softc; 618 io = NULL; 619 620 621#if 0 622 printf("CTL: Isc Msg event %d\n", event); 623#endif 624 if (event == CTL_HA_EVT_MSG_RECV) { 625 union ctl_ha_msg msg_info; 626 627 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 628 sizeof(msg_info), /*wait*/ 0); 629#if 0 630 printf("CTL: msg_type %d\n", msg_info.msg_type); 631#endif 632 if (isc_status != 0) { 633 printf("Error receiving message, status = %d\n", 634 isc_status); 635 return; 636 } 637 638 switch (msg_info.hdr.msg_type) { 639 case CTL_MSG_SERIALIZE: 640#if 0 641 printf("Serialize\n"); 642#endif 643 io = ctl_alloc_io_nowait(softc->othersc_pool); 644 if (io == NULL) { 645 printf("ctl_isc_event_handler: can't allocate " 646 "ctl_io!\n"); 647 /* Bad Juju */ 648 /* Need to set busy and send msg back */ 649 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 650 msg_info.hdr.status = CTL_SCSI_ERROR; 651 msg_info.scsi.scsi_status = SCSI_STATUS_BUSY; 652 msg_info.scsi.sense_len = 0; 653 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 654 sizeof(msg_info), 0) > CTL_HA_STATUS_SUCCESS){ 655 } 656 goto bailout; 657 } 658 ctl_zero_io(io); 659 // populate ctsio from msg_info 660 io->io_hdr.io_type = CTL_IO_SCSI; 661 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 662 io->io_hdr.original_sc = msg_info.hdr.original_sc; 663#if 0 664 printf("pOrig %x\n", (int)msg_info.original_sc); 665#endif 666 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 667 CTL_FLAG_IO_ACTIVE; 668 /* 669 * If we're in serialization-only mode, we don't 670 * want to go through full done processing. Thus 671 * the COPY flag. 672 * 673 * XXX KDM add another flag that is more specific. 674 */ 675 if (softc->ha_mode == CTL_HA_MODE_SER_ONLY) 676 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 677 io->io_hdr.nexus = msg_info.hdr.nexus; 678#if 0 679 printf("targ %d, port %d, iid %d, lun %d\n", 680 io->io_hdr.nexus.targ_target.id, 681 io->io_hdr.nexus.targ_port, 682 io->io_hdr.nexus.initid.id, 683 io->io_hdr.nexus.targ_lun); 684#endif 685 io->scsiio.tag_num = msg_info.scsi.tag_num; 686 io->scsiio.tag_type = msg_info.scsi.tag_type; 687 memcpy(io->scsiio.cdb, msg_info.scsi.cdb, 688 CTL_MAX_CDBLEN); 689 if (softc->ha_mode == CTL_HA_MODE_XFER) { 690 const struct ctl_cmd_entry *entry; 691 692 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 693 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 694 io->io_hdr.flags |= 695 entry->flags & CTL_FLAG_DATA_MASK; 696 } 697 ctl_enqueue_isc(io); 698 break; 699 700 /* Performed on the Originating SC, XFER mode only */ 701 case CTL_MSG_DATAMOVE: { 702 struct ctl_sg_entry *sgl; 703 int i, j; 704 705 io = msg_info.hdr.original_sc; 706 if (io == NULL) { 707 printf("%s: original_sc == NULL!\n", __func__); 708 /* XXX KDM do something here */ 709 break; 710 } 711 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 712 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 713 /* 714 * Keep track of this, we need to send it back over 715 * when the datamove is complete. 716 */ 717 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 718 719 if (msg_info.dt.sg_sequence == 0) { 720 /* 721 * XXX KDM we use the preallocated S/G list 722 * here, but we'll need to change this to 723 * dynamic allocation if we need larger S/G 724 * lists. 725 */ 726 if (msg_info.dt.kern_sg_entries > 727 sizeof(io->io_hdr.remote_sglist) / 728 sizeof(io->io_hdr.remote_sglist[0])) { 729 printf("%s: number of S/G entries " 730 "needed %u > allocated num %zd\n", 731 __func__, 732 msg_info.dt.kern_sg_entries, 733 sizeof(io->io_hdr.remote_sglist)/ 734 sizeof(io->io_hdr.remote_sglist[0])); 735 736 /* 737 * XXX KDM send a message back to 738 * the other side to shut down the 739 * DMA. The error will come back 740 * through via the normal channel. 741 */ 742 break; 743 } 744 sgl = io->io_hdr.remote_sglist; 745 memset(sgl, 0, 746 sizeof(io->io_hdr.remote_sglist)); 747 748 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 749 750 io->scsiio.kern_sg_entries = 751 msg_info.dt.kern_sg_entries; 752 io->scsiio.rem_sg_entries = 753 msg_info.dt.kern_sg_entries; 754 io->scsiio.kern_data_len = 755 msg_info.dt.kern_data_len; 756 io->scsiio.kern_total_len = 757 msg_info.dt.kern_total_len; 758 io->scsiio.kern_data_resid = 759 msg_info.dt.kern_data_resid; 760 io->scsiio.kern_rel_offset = 761 msg_info.dt.kern_rel_offset; 762 /* 763 * Clear out per-DMA flags. 764 */ 765 io->io_hdr.flags &= ~CTL_FLAG_RDMA_MASK; 766 /* 767 * Add per-DMA flags that are set for this 768 * particular DMA request. 769 */ 770 io->io_hdr.flags |= msg_info.dt.flags & 771 CTL_FLAG_RDMA_MASK; 772 } else 773 sgl = (struct ctl_sg_entry *) 774 io->scsiio.kern_data_ptr; 775 776 for (i = msg_info.dt.sent_sg_entries, j = 0; 777 i < (msg_info.dt.sent_sg_entries + 778 msg_info.dt.cur_sg_entries); i++, j++) { 779 sgl[i].addr = msg_info.dt.sg_list[j].addr; 780 sgl[i].len = msg_info.dt.sg_list[j].len; 781 782#if 0 783 printf("%s: L: %p,%d -> %p,%d j=%d, i=%d\n", 784 __func__, 785 msg_info.dt.sg_list[j].addr, 786 msg_info.dt.sg_list[j].len, 787 sgl[i].addr, sgl[i].len, j, i); 788#endif 789 } 790#if 0 791 memcpy(&sgl[msg_info.dt.sent_sg_entries], 792 msg_info.dt.sg_list, 793 sizeof(*sgl) * msg_info.dt.cur_sg_entries); 794#endif 795 796 /* 797 * If this is the last piece of the I/O, we've got 798 * the full S/G list. Queue processing in the thread. 799 * Otherwise wait for the next piece. 800 */ 801 if (msg_info.dt.sg_last != 0) 802 ctl_enqueue_isc(io); 803 break; 804 } 805 /* Performed on the Serializing (primary) SC, XFER mode only */ 806 case CTL_MSG_DATAMOVE_DONE: { 807 if (msg_info.hdr.serializing_sc == NULL) { 808 printf("%s: serializing_sc == NULL!\n", 809 __func__); 810 /* XXX KDM now what? */ 811 break; 812 } 813 /* 814 * We grab the sense information here in case 815 * there was a failure, so we can return status 816 * back to the initiator. 817 */ 818 io = msg_info.hdr.serializing_sc; 819 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 820 io->io_hdr.status = msg_info.hdr.status; 821 io->scsiio.scsi_status = msg_info.scsi.scsi_status; 822 io->scsiio.sense_len = msg_info.scsi.sense_len; 823 io->scsiio.sense_residual =msg_info.scsi.sense_residual; 824 io->io_hdr.port_status = msg_info.scsi.fetd_status; 825 io->scsiio.residual = msg_info.scsi.residual; 826 memcpy(&io->scsiio.sense_data,&msg_info.scsi.sense_data, 827 sizeof(io->scsiio.sense_data)); 828 ctl_enqueue_isc(io); 829 break; 830 } 831 832 /* Preformed on Originating SC, SER_ONLY mode */ 833 case CTL_MSG_R2R: 834 io = msg_info.hdr.original_sc; 835 if (io == NULL) { 836 printf("%s: Major Bummer\n", __func__); 837 return; 838 } else { 839#if 0 840 printf("pOrig %x\n",(int) ctsio); 841#endif 842 } 843 io->io_hdr.msg_type = CTL_MSG_R2R; 844 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 845 ctl_enqueue_isc(io); 846 break; 847 848 /* 849 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 850 * mode. 851 * Performed on the Originating (i.e. secondary) SC in XFER 852 * mode 853 */ 854 case CTL_MSG_FINISH_IO: 855 if (softc->ha_mode == CTL_HA_MODE_XFER) 856 ctl_isc_handler_finish_xfer(softc, 857 &msg_info); 858 else 859 ctl_isc_handler_finish_ser_only(softc, 860 &msg_info); 861 break; 862 863 /* Preformed on Originating SC */ 864 case CTL_MSG_BAD_JUJU: 865 io = msg_info.hdr.original_sc; 866 if (io == NULL) { 867 printf("%s: Bad JUJU!, original_sc is NULL!\n", 868 __func__); 869 break; 870 } 871 ctl_copy_sense_data(&msg_info, io); 872 /* 873 * IO should have already been cleaned up on other 874 * SC so clear this flag so we won't send a message 875 * back to finish the IO there. 876 */ 877 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 878 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 879 880 /* io = msg_info.hdr.serializing_sc; */ 881 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 882 ctl_enqueue_isc(io); 883 break; 884 885 /* Handle resets sent from the other side */ 886 case CTL_MSG_MANAGE_TASKS: { 887 struct ctl_taskio *taskio; 888 taskio = (struct ctl_taskio *)ctl_alloc_io_nowait( 889 softc->othersc_pool); 890 if (taskio == NULL) { 891 printf("ctl_isc_event_handler: can't allocate " 892 "ctl_io!\n"); 893 /* Bad Juju */ 894 /* should I just call the proper reset func 895 here??? */ 896 goto bailout; 897 } 898 ctl_zero_io((union ctl_io *)taskio); 899 taskio->io_hdr.io_type = CTL_IO_TASK; 900 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 901 taskio->io_hdr.nexus = msg_info.hdr.nexus; 902 taskio->task_action = msg_info.task.task_action; 903 taskio->tag_num = msg_info.task.tag_num; 904 taskio->tag_type = msg_info.task.tag_type; 905#ifdef CTL_TIME_IO 906 taskio->io_hdr.start_time = time_uptime; 907 getbintime(&taskio->io_hdr.start_bt); 908#if 0 909 cs_prof_gettime(&taskio->io_hdr.start_ticks); 910#endif 911#endif /* CTL_TIME_IO */ 912 ctl_run_task((union ctl_io *)taskio); 913 break; 914 } 915 /* Persistent Reserve action which needs attention */ 916 case CTL_MSG_PERS_ACTION: 917 presio = (struct ctl_prio *)ctl_alloc_io_nowait( 918 softc->othersc_pool); 919 if (presio == NULL) { 920 printf("ctl_isc_event_handler: can't allocate " 921 "ctl_io!\n"); 922 /* Bad Juju */ 923 /* Need to set busy and send msg back */ 924 goto bailout; 925 } 926 ctl_zero_io((union ctl_io *)presio); 927 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 928 presio->pr_msg = msg_info.pr; 929 ctl_enqueue_isc((union ctl_io *)presio); 930 break; 931 case CTL_MSG_SYNC_FE: 932 rcv_sync_msg = 1; 933 break; 934 default: 935 printf("How did I get here?\n"); 936 } 937 } else if (event == CTL_HA_EVT_MSG_SENT) { 938 if (param != CTL_HA_STATUS_SUCCESS) { 939 printf("Bad status from ctl_ha_msg_send status %d\n", 940 param); 941 } 942 return; 943 } else if (event == CTL_HA_EVT_DISCONNECT) { 944 printf("CTL: Got a disconnect from Isc\n"); 945 return; 946 } else { 947 printf("ctl_isc_event_handler: Unknown event %d\n", event); 948 return; 949 } 950 951bailout: 952 return; 953} 954 955static void 956ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 957{ 958 struct scsi_sense_data *sense; 959 960 sense = &dest->scsiio.sense_data; 961 bcopy(&src->scsi.sense_data, sense, sizeof(*sense)); 962 dest->scsiio.scsi_status = src->scsi.scsi_status; 963 dest->scsiio.sense_len = src->scsi.sense_len; 964 dest->io_hdr.status = src->hdr.status; 965} 966 967static void 968ctl_est_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 969{ 970 ctl_ua_type *pu; 971 972 mtx_assert(&lun->lun_lock, MA_OWNED); 973 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 974 if (pu == NULL) 975 return; 976 pu[initidx % CTL_MAX_INIT_PER_PORT] |= ua; 977} 978 979static void 980ctl_est_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 981{ 982 int i, j; 983 984 mtx_assert(&lun->lun_lock, MA_OWNED); 985 for (i = 0; i < CTL_MAX_PORTS; i++) { 986 if (lun->pending_ua[i] == NULL) 987 continue; 988 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 989 if (i * CTL_MAX_INIT_PER_PORT + j == except) 990 continue; 991 lun->pending_ua[i][j] |= ua; 992 } 993 } 994} 995 996static void 997ctl_clr_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 998{ 999 ctl_ua_type *pu; 1000 1001 mtx_assert(&lun->lun_lock, MA_OWNED); 1002 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1003 if (pu == NULL) 1004 return; 1005 pu[initidx % CTL_MAX_INIT_PER_PORT] &= ~ua; 1006} 1007 1008static void 1009ctl_clr_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1010{ 1011 int i, j; 1012 1013 mtx_assert(&lun->lun_lock, MA_OWNED); 1014 for (i = 0; i < CTL_MAX_PORTS; i++) { 1015 if (lun->pending_ua[i] == NULL) 1016 continue; 1017 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 1018 if (i * CTL_MAX_INIT_PER_PORT + j == except) 1019 continue; 1020 lun->pending_ua[i][j] &= ~ua; 1021 } 1022 } 1023} 1024 1025static int 1026ctl_ha_state_sysctl(SYSCTL_HANDLER_ARGS) 1027{ 1028 struct ctl_softc *softc = (struct ctl_softc *)arg1; 1029 struct ctl_lun *lun; 1030 int error, value; 1031 1032 if (softc->flags & CTL_FLAG_ACTIVE_SHELF) 1033 value = 0; 1034 else 1035 value = 1; 1036 1037 error = sysctl_handle_int(oidp, &value, 0, req); 1038 if ((error != 0) || (req->newptr == NULL)) 1039 return (error); 1040 1041 mtx_lock(&softc->ctl_lock); 1042 if (value == 0) 1043 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1044 else 1045 softc->flags &= ~CTL_FLAG_ACTIVE_SHELF; 1046 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1047 mtx_lock(&lun->lun_lock); 1048 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 1049 mtx_unlock(&lun->lun_lock); 1050 } 1051 mtx_unlock(&softc->ctl_lock); 1052 return (0); 1053} 1054 1055static int 1056ctl_init(void) 1057{ 1058 struct ctl_softc *softc; 1059 void *other_pool; 1060 struct ctl_port *port; 1061 int i, error, retval; 1062 //int isc_retval; 1063 1064 retval = 0; 1065 ctl_pause_rtr = 0; 1066 rcv_sync_msg = 0; 1067 1068 control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 1069 M_WAITOK | M_ZERO); 1070 softc = control_softc; 1071 1072 softc->dev = make_dev(&ctl_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, 1073 "cam/ctl"); 1074 1075 softc->dev->si_drv1 = softc; 1076 1077 /* 1078 * By default, return a "bad LUN" peripheral qualifier for unknown 1079 * LUNs. The user can override this default using the tunable or 1080 * sysctl. See the comment in ctl_inquiry_std() for more details. 1081 */ 1082 softc->inquiry_pq_no_lun = 1; 1083 TUNABLE_INT_FETCH("kern.cam.ctl.inquiry_pq_no_lun", 1084 &softc->inquiry_pq_no_lun); 1085 sysctl_ctx_init(&softc->sysctl_ctx); 1086 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1087 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 1088 CTLFLAG_RD, 0, "CAM Target Layer"); 1089 1090 if (softc->sysctl_tree == NULL) { 1091 printf("%s: unable to allocate sysctl tree\n", __func__); 1092 destroy_dev(softc->dev); 1093 free(control_softc, M_DEVBUF); 1094 control_softc = NULL; 1095 return (ENOMEM); 1096 } 1097 1098 SYSCTL_ADD_INT(&softc->sysctl_ctx, 1099 SYSCTL_CHILDREN(softc->sysctl_tree), OID_AUTO, 1100 "inquiry_pq_no_lun", CTLFLAG_RW, 1101 &softc->inquiry_pq_no_lun, 0, 1102 "Report no lun possible for invalid LUNs"); 1103 1104 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 1105 softc->io_zone = uma_zcreate("CTL IO", sizeof(union ctl_io), 1106 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); 1107 softc->open_count = 0; 1108 1109 /* 1110 * Default to actually sending a SYNCHRONIZE CACHE command down to 1111 * the drive. 1112 */ 1113 softc->flags = CTL_FLAG_REAL_SYNC; 1114 1115 /* 1116 * In Copan's HA scheme, the "master" and "slave" roles are 1117 * figured out through the slot the controller is in. Although it 1118 * is an active/active system, someone has to be in charge. 1119 */ 1120 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1121 OID_AUTO, "ha_id", CTLFLAG_RDTUN, &softc->ha_id, 0, 1122 "HA head ID (0 - no HA)"); 1123 if (softc->ha_id == 0) { 1124 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1125 softc->is_single = 1; 1126 softc->port_offset = 0; 1127 } else 1128 softc->port_offset = (softc->ha_id - 1) * CTL_MAX_PORTS; 1129 softc->persis_offset = softc->port_offset * CTL_MAX_INIT_PER_PORT; 1130 1131 /* 1132 * XXX KDM need to figure out where we want to get our target ID 1133 * and WWID. Is it different on each port? 1134 */ 1135 softc->target.id = 0; 1136 softc->target.wwid[0] = 0x12345678; 1137 softc->target.wwid[1] = 0x87654321; 1138 STAILQ_INIT(&softc->lun_list); 1139 STAILQ_INIT(&softc->pending_lun_queue); 1140 STAILQ_INIT(&softc->fe_list); 1141 STAILQ_INIT(&softc->port_list); 1142 STAILQ_INIT(&softc->be_list); 1143 ctl_tpc_init(softc); 1144 1145 if (ctl_pool_create(softc, "othersc", CTL_POOL_ENTRIES_OTHER_SC, 1146 &other_pool) != 0) 1147 { 1148 printf("ctl: can't allocate %d entry other SC pool, " 1149 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1150 return (ENOMEM); 1151 } 1152 softc->othersc_pool = other_pool; 1153 1154 if (worker_threads <= 0) 1155 worker_threads = max(1, mp_ncpus / 4); 1156 if (worker_threads > CTL_MAX_THREADS) 1157 worker_threads = CTL_MAX_THREADS; 1158 1159 for (i = 0; i < worker_threads; i++) { 1160 struct ctl_thread *thr = &softc->threads[i]; 1161 1162 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1163 thr->ctl_softc = softc; 1164 STAILQ_INIT(&thr->incoming_queue); 1165 STAILQ_INIT(&thr->rtr_queue); 1166 STAILQ_INIT(&thr->done_queue); 1167 STAILQ_INIT(&thr->isc_queue); 1168 1169 error = kproc_kthread_add(ctl_work_thread, thr, 1170 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1171 if (error != 0) { 1172 printf("error creating CTL work thread!\n"); 1173 ctl_pool_free(other_pool); 1174 return (error); 1175 } 1176 } 1177 error = kproc_kthread_add(ctl_lun_thread, softc, 1178 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1179 if (error != 0) { 1180 printf("error creating CTL lun thread!\n"); 1181 ctl_pool_free(other_pool); 1182 return (error); 1183 } 1184 error = kproc_kthread_add(ctl_thresh_thread, softc, 1185 &softc->ctl_proc, NULL, 0, 0, "ctl", "thresh"); 1186 if (error != 0) { 1187 printf("error creating CTL threshold thread!\n"); 1188 ctl_pool_free(other_pool); 1189 return (error); 1190 } 1191 if (bootverbose) 1192 printf("ctl: CAM Target Layer loaded\n"); 1193 1194 /* 1195 * Initialize the ioctl front end. 1196 */ 1197 ctl_frontend_register(&ioctl_frontend); 1198 port = &softc->ioctl_info.port; 1199 port->frontend = &ioctl_frontend; 1200 sprintf(softc->ioctl_info.port_name, "ioctl"); 1201 port->port_type = CTL_PORT_IOCTL; 1202 port->num_requested_ctl_io = 100; 1203 port->port_name = softc->ioctl_info.port_name; 1204 port->port_online = ctl_ioctl_online; 1205 port->port_offline = ctl_ioctl_offline; 1206 port->onoff_arg = &softc->ioctl_info; 1207 port->lun_enable = ctl_ioctl_lun_enable; 1208 port->lun_disable = ctl_ioctl_lun_disable; 1209 port->targ_lun_arg = &softc->ioctl_info; 1210 port->fe_datamove = ctl_ioctl_datamove; 1211 port->fe_done = ctl_ioctl_done; 1212 port->max_targets = 15; 1213 port->max_target_id = 15; 1214 1215 if (ctl_port_register(&softc->ioctl_info.port) != 0) { 1216 printf("ctl: ioctl front end registration failed, will " 1217 "continue anyway\n"); 1218 } 1219 1220 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1221 OID_AUTO, "ha_state", CTLTYPE_INT | CTLFLAG_RWTUN, 1222 softc, 0, ctl_ha_state_sysctl, "I", "HA state for this head"); 1223 1224#ifdef CTL_IO_DELAY 1225 if (sizeof(struct callout) > CTL_TIMER_BYTES) { 1226 printf("sizeof(struct callout) %zd > CTL_TIMER_BYTES %zd\n", 1227 sizeof(struct callout), CTL_TIMER_BYTES); 1228 return (EINVAL); 1229 } 1230#endif /* CTL_IO_DELAY */ 1231 1232 return (0); 1233} 1234 1235void 1236ctl_shutdown(void) 1237{ 1238 struct ctl_softc *softc; 1239 struct ctl_lun *lun, *next_lun; 1240 1241 softc = (struct ctl_softc *)control_softc; 1242 1243 if (ctl_port_deregister(&softc->ioctl_info.port) != 0) 1244 printf("ctl: ioctl front end deregistration failed\n"); 1245 1246 mtx_lock(&softc->ctl_lock); 1247 1248 /* 1249 * Free up each LUN. 1250 */ 1251 for (lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; lun = next_lun){ 1252 next_lun = STAILQ_NEXT(lun, links); 1253 ctl_free_lun(lun); 1254 } 1255 1256 mtx_unlock(&softc->ctl_lock); 1257 1258 ctl_frontend_deregister(&ioctl_frontend); 1259 1260#if 0 1261 ctl_shutdown_thread(softc->work_thread); 1262 mtx_destroy(&softc->queue_lock); 1263#endif 1264 1265 ctl_tpc_shutdown(softc); 1266 uma_zdestroy(softc->io_zone); 1267 mtx_destroy(&softc->ctl_lock); 1268 1269 destroy_dev(softc->dev); 1270 1271 sysctl_ctx_free(&softc->sysctl_ctx); 1272 1273 free(control_softc, M_DEVBUF); 1274 control_softc = NULL; 1275 1276 if (bootverbose) 1277 printf("ctl: CAM Target Layer unloaded\n"); 1278} 1279 1280static int 1281ctl_module_event_handler(module_t mod, int what, void *arg) 1282{ 1283 1284 switch (what) { 1285 case MOD_LOAD: 1286 return (ctl_init()); 1287 case MOD_UNLOAD: 1288 return (EBUSY); 1289 default: 1290 return (EOPNOTSUPP); 1291 } 1292} 1293 1294/* 1295 * XXX KDM should we do some access checks here? Bump a reference count to 1296 * prevent a CTL module from being unloaded while someone has it open? 1297 */ 1298static int 1299ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1300{ 1301 return (0); 1302} 1303 1304static int 1305ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1306{ 1307 return (0); 1308} 1309 1310int 1311ctl_port_enable(ctl_port_type port_type) 1312{ 1313 struct ctl_softc *softc = control_softc; 1314 struct ctl_port *port; 1315 1316 if (softc->is_single == 0) { 1317 union ctl_ha_msg msg_info; 1318 int isc_retval; 1319 1320#if 0 1321 printf("%s: HA mode, synchronizing frontend enable\n", 1322 __func__); 1323#endif 1324 msg_info.hdr.msg_type = CTL_MSG_SYNC_FE; 1325 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1326 sizeof(msg_info), 1 )) > CTL_HA_STATUS_SUCCESS) { 1327 printf("Sync msg send error retval %d\n", isc_retval); 1328 } 1329 if (!rcv_sync_msg) { 1330 isc_retval=ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 1331 sizeof(msg_info), 1); 1332 } 1333#if 0 1334 printf("CTL:Frontend Enable\n"); 1335 } else { 1336 printf("%s: single mode, skipping frontend synchronization\n", 1337 __func__); 1338#endif 1339 } 1340 1341 STAILQ_FOREACH(port, &softc->port_list, links) { 1342 if (port_type & port->port_type) 1343 { 1344#if 0 1345 printf("port %d\n", port->targ_port); 1346#endif 1347 ctl_port_online(port); 1348 } 1349 } 1350 1351 return (0); 1352} 1353 1354int 1355ctl_port_disable(ctl_port_type port_type) 1356{ 1357 struct ctl_softc *softc; 1358 struct ctl_port *port; 1359 1360 softc = control_softc; 1361 1362 STAILQ_FOREACH(port, &softc->port_list, links) { 1363 if (port_type & port->port_type) 1364 ctl_port_offline(port); 1365 } 1366 1367 return (0); 1368} 1369 1370/* 1371 * Returns 0 for success, 1 for failure. 1372 * Currently the only failure mode is if there aren't enough entries 1373 * allocated. So, in case of a failure, look at num_entries_dropped, 1374 * reallocate and try again. 1375 */ 1376int 1377ctl_port_list(struct ctl_port_entry *entries, int num_entries_alloced, 1378 int *num_entries_filled, int *num_entries_dropped, 1379 ctl_port_type port_type, int no_virtual) 1380{ 1381 struct ctl_softc *softc; 1382 struct ctl_port *port; 1383 int entries_dropped, entries_filled; 1384 int retval; 1385 int i; 1386 1387 softc = control_softc; 1388 1389 retval = 0; 1390 entries_filled = 0; 1391 entries_dropped = 0; 1392 1393 i = 0; 1394 mtx_lock(&softc->ctl_lock); 1395 STAILQ_FOREACH(port, &softc->port_list, links) { 1396 struct ctl_port_entry *entry; 1397 1398 if ((port->port_type & port_type) == 0) 1399 continue; 1400 1401 if ((no_virtual != 0) 1402 && (port->virtual_port != 0)) 1403 continue; 1404 1405 if (entries_filled >= num_entries_alloced) { 1406 entries_dropped++; 1407 continue; 1408 } 1409 entry = &entries[i]; 1410 1411 entry->port_type = port->port_type; 1412 strlcpy(entry->port_name, port->port_name, 1413 sizeof(entry->port_name)); 1414 entry->physical_port = port->physical_port; 1415 entry->virtual_port = port->virtual_port; 1416 entry->wwnn = port->wwnn; 1417 entry->wwpn = port->wwpn; 1418 1419 i++; 1420 entries_filled++; 1421 } 1422 1423 mtx_unlock(&softc->ctl_lock); 1424 1425 if (entries_dropped > 0) 1426 retval = 1; 1427 1428 *num_entries_dropped = entries_dropped; 1429 *num_entries_filled = entries_filled; 1430 1431 return (retval); 1432} 1433 1434static void 1435ctl_ioctl_online(void *arg) 1436{ 1437 struct ctl_ioctl_info *ioctl_info; 1438 1439 ioctl_info = (struct ctl_ioctl_info *)arg; 1440 1441 ioctl_info->flags |= CTL_IOCTL_FLAG_ENABLED; 1442} 1443 1444static void 1445ctl_ioctl_offline(void *arg) 1446{ 1447 struct ctl_ioctl_info *ioctl_info; 1448 1449 ioctl_info = (struct ctl_ioctl_info *)arg; 1450 1451 ioctl_info->flags &= ~CTL_IOCTL_FLAG_ENABLED; 1452} 1453 1454/* 1455 * Remove an initiator by port number and initiator ID. 1456 * Returns 0 for success, -1 for failure. 1457 */ 1458int 1459ctl_remove_initiator(struct ctl_port *port, int iid) 1460{ 1461 struct ctl_softc *softc = control_softc; 1462 1463 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1464 1465 if (iid > CTL_MAX_INIT_PER_PORT) { 1466 printf("%s: initiator ID %u > maximun %u!\n", 1467 __func__, iid, CTL_MAX_INIT_PER_PORT); 1468 return (-1); 1469 } 1470 1471 mtx_lock(&softc->ctl_lock); 1472 port->wwpn_iid[iid].in_use--; 1473 port->wwpn_iid[iid].last_use = time_uptime; 1474 mtx_unlock(&softc->ctl_lock); 1475 1476 return (0); 1477} 1478 1479/* 1480 * Add an initiator to the initiator map. 1481 * Returns iid for success, < 0 for failure. 1482 */ 1483int 1484ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 1485{ 1486 struct ctl_softc *softc = control_softc; 1487 time_t best_time; 1488 int i, best; 1489 1490 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1491 1492 if (iid >= CTL_MAX_INIT_PER_PORT) { 1493 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 1494 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 1495 free(name, M_CTL); 1496 return (-1); 1497 } 1498 1499 mtx_lock(&softc->ctl_lock); 1500 1501 if (iid < 0 && (wwpn != 0 || name != NULL)) { 1502 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1503 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 1504 iid = i; 1505 break; 1506 } 1507 if (name != NULL && port->wwpn_iid[i].name != NULL && 1508 strcmp(name, port->wwpn_iid[i].name) == 0) { 1509 iid = i; 1510 break; 1511 } 1512 } 1513 } 1514 1515 if (iid < 0) { 1516 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1517 if (port->wwpn_iid[i].in_use == 0 && 1518 port->wwpn_iid[i].wwpn == 0 && 1519 port->wwpn_iid[i].name == NULL) { 1520 iid = i; 1521 break; 1522 } 1523 } 1524 } 1525 1526 if (iid < 0) { 1527 best = -1; 1528 best_time = INT32_MAX; 1529 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1530 if (port->wwpn_iid[i].in_use == 0) { 1531 if (port->wwpn_iid[i].last_use < best_time) { 1532 best = i; 1533 best_time = port->wwpn_iid[i].last_use; 1534 } 1535 } 1536 } 1537 iid = best; 1538 } 1539 1540 if (iid < 0) { 1541 mtx_unlock(&softc->ctl_lock); 1542 free(name, M_CTL); 1543 return (-2); 1544 } 1545 1546 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 1547 /* 1548 * This is not an error yet. 1549 */ 1550 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 1551#if 0 1552 printf("%s: port %d iid %u WWPN %#jx arrived" 1553 " again\n", __func__, port->targ_port, 1554 iid, (uintmax_t)wwpn); 1555#endif 1556 goto take; 1557 } 1558 if (name != NULL && port->wwpn_iid[iid].name != NULL && 1559 strcmp(name, port->wwpn_iid[iid].name) == 0) { 1560#if 0 1561 printf("%s: port %d iid %u name '%s' arrived" 1562 " again\n", __func__, port->targ_port, 1563 iid, name); 1564#endif 1565 goto take; 1566 } 1567 1568 /* 1569 * This is an error, but what do we do about it? The 1570 * driver is telling us we have a new WWPN for this 1571 * initiator ID, so we pretty much need to use it. 1572 */ 1573 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 1574 " but WWPN %#jx '%s' is still at that address\n", 1575 __func__, port->targ_port, iid, wwpn, name, 1576 (uintmax_t)port->wwpn_iid[iid].wwpn, 1577 port->wwpn_iid[iid].name); 1578 1579 /* 1580 * XXX KDM clear have_ca and ua_pending on each LUN for 1581 * this initiator. 1582 */ 1583 } 1584take: 1585 free(port->wwpn_iid[iid].name, M_CTL); 1586 port->wwpn_iid[iid].name = name; 1587 port->wwpn_iid[iid].wwpn = wwpn; 1588 port->wwpn_iid[iid].in_use++; 1589 mtx_unlock(&softc->ctl_lock); 1590 1591 return (iid); 1592} 1593 1594static int 1595ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 1596{ 1597 int len; 1598 1599 switch (port->port_type) { 1600 case CTL_PORT_FC: 1601 { 1602 struct scsi_transportid_fcp *id = 1603 (struct scsi_transportid_fcp *)buf; 1604 if (port->wwpn_iid[iid].wwpn == 0) 1605 return (0); 1606 memset(id, 0, sizeof(*id)); 1607 id->format_protocol = SCSI_PROTO_FC; 1608 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 1609 return (sizeof(*id)); 1610 } 1611 case CTL_PORT_ISCSI: 1612 { 1613 struct scsi_transportid_iscsi_port *id = 1614 (struct scsi_transportid_iscsi_port *)buf; 1615 if (port->wwpn_iid[iid].name == NULL) 1616 return (0); 1617 memset(id, 0, 256); 1618 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 1619 SCSI_PROTO_ISCSI; 1620 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 1621 len = roundup2(min(len, 252), 4); 1622 scsi_ulto2b(len, id->additional_length); 1623 return (sizeof(*id) + len); 1624 } 1625 case CTL_PORT_SAS: 1626 { 1627 struct scsi_transportid_sas *id = 1628 (struct scsi_transportid_sas *)buf; 1629 if (port->wwpn_iid[iid].wwpn == 0) 1630 return (0); 1631 memset(id, 0, sizeof(*id)); 1632 id->format_protocol = SCSI_PROTO_SAS; 1633 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 1634 return (sizeof(*id)); 1635 } 1636 default: 1637 { 1638 struct scsi_transportid_spi *id = 1639 (struct scsi_transportid_spi *)buf; 1640 memset(id, 0, sizeof(*id)); 1641 id->format_protocol = SCSI_PROTO_SPI; 1642 scsi_ulto2b(iid, id->scsi_addr); 1643 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 1644 return (sizeof(*id)); 1645 } 1646 } 1647} 1648 1649static int 1650ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id) 1651{ 1652 return (0); 1653} 1654 1655static int 1656ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id) 1657{ 1658 return (0); 1659} 1660 1661/* 1662 * Data movement routine for the CTL ioctl frontend port. 1663 */ 1664static int 1665ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio) 1666{ 1667 struct ctl_sg_entry *ext_sglist, *kern_sglist; 1668 struct ctl_sg_entry ext_entry, kern_entry; 1669 int ext_sglen, ext_sg_entries, kern_sg_entries; 1670 int ext_sg_start, ext_offset; 1671 int len_to_copy, len_copied; 1672 int kern_watermark, ext_watermark; 1673 int ext_sglist_malloced; 1674 int i, j; 1675 1676 ext_sglist_malloced = 0; 1677 ext_sg_start = 0; 1678 ext_offset = 0; 1679 1680 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove\n")); 1681 1682 /* 1683 * If this flag is set, fake the data transfer. 1684 */ 1685 if (ctsio->io_hdr.flags & CTL_FLAG_NO_DATAMOVE) { 1686 ctsio->ext_data_filled = ctsio->ext_data_len; 1687 goto bailout; 1688 } 1689 1690 /* 1691 * To simplify things here, if we have a single buffer, stick it in 1692 * a S/G entry and just make it a single entry S/G list. 1693 */ 1694 if (ctsio->io_hdr.flags & CTL_FLAG_EDPTR_SGLIST) { 1695 int len_seen; 1696 1697 ext_sglen = ctsio->ext_sg_entries * sizeof(*ext_sglist); 1698 1699 ext_sglist = (struct ctl_sg_entry *)malloc(ext_sglen, M_CTL, 1700 M_WAITOK); 1701 ext_sglist_malloced = 1; 1702 if (copyin(ctsio->ext_data_ptr, ext_sglist, 1703 ext_sglen) != 0) { 1704 ctl_set_internal_failure(ctsio, 1705 /*sks_valid*/ 0, 1706 /*retry_count*/ 0); 1707 goto bailout; 1708 } 1709 ext_sg_entries = ctsio->ext_sg_entries; 1710 len_seen = 0; 1711 for (i = 0; i < ext_sg_entries; i++) { 1712 if ((len_seen + ext_sglist[i].len) >= 1713 ctsio->ext_data_filled) { 1714 ext_sg_start = i; 1715 ext_offset = ctsio->ext_data_filled - len_seen; 1716 break; 1717 } 1718 len_seen += ext_sglist[i].len; 1719 } 1720 } else { 1721 ext_sglist = &ext_entry; 1722 ext_sglist->addr = ctsio->ext_data_ptr; 1723 ext_sglist->len = ctsio->ext_data_len; 1724 ext_sg_entries = 1; 1725 ext_sg_start = 0; 1726 ext_offset = ctsio->ext_data_filled; 1727 } 1728 1729 if (ctsio->kern_sg_entries > 0) { 1730 kern_sglist = (struct ctl_sg_entry *)ctsio->kern_data_ptr; 1731 kern_sg_entries = ctsio->kern_sg_entries; 1732 } else { 1733 kern_sglist = &kern_entry; 1734 kern_sglist->addr = ctsio->kern_data_ptr; 1735 kern_sglist->len = ctsio->kern_data_len; 1736 kern_sg_entries = 1; 1737 } 1738 1739 1740 kern_watermark = 0; 1741 ext_watermark = ext_offset; 1742 len_copied = 0; 1743 for (i = ext_sg_start, j = 0; 1744 i < ext_sg_entries && j < kern_sg_entries;) { 1745 uint8_t *ext_ptr, *kern_ptr; 1746 1747 len_to_copy = MIN(ext_sglist[i].len - ext_watermark, 1748 kern_sglist[j].len - kern_watermark); 1749 1750 ext_ptr = (uint8_t *)ext_sglist[i].addr; 1751 ext_ptr = ext_ptr + ext_watermark; 1752 if (ctsio->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 1753 /* 1754 * XXX KDM fix this! 1755 */ 1756 panic("need to implement bus address support"); 1757#if 0 1758 kern_ptr = bus_to_virt(kern_sglist[j].addr); 1759#endif 1760 } else 1761 kern_ptr = (uint8_t *)kern_sglist[j].addr; 1762 kern_ptr = kern_ptr + kern_watermark; 1763 1764 kern_watermark += len_to_copy; 1765 ext_watermark += len_to_copy; 1766 1767 if ((ctsio->io_hdr.flags & CTL_FLAG_DATA_MASK) == 1768 CTL_FLAG_DATA_IN) { 1769 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1770 "bytes to user\n", len_to_copy)); 1771 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1772 "to %p\n", kern_ptr, ext_ptr)); 1773 if (copyout(kern_ptr, ext_ptr, len_to_copy) != 0) { 1774 ctl_set_internal_failure(ctsio, 1775 /*sks_valid*/ 0, 1776 /*retry_count*/ 0); 1777 goto bailout; 1778 } 1779 } else { 1780 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1781 "bytes from user\n", len_to_copy)); 1782 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1783 "to %p\n", ext_ptr, kern_ptr)); 1784 if (copyin(ext_ptr, kern_ptr, len_to_copy)!= 0){ 1785 ctl_set_internal_failure(ctsio, 1786 /*sks_valid*/ 0, 1787 /*retry_count*/0); 1788 goto bailout; 1789 } 1790 } 1791 1792 len_copied += len_to_copy; 1793 1794 if (ext_sglist[i].len == ext_watermark) { 1795 i++; 1796 ext_watermark = 0; 1797 } 1798 1799 if (kern_sglist[j].len == kern_watermark) { 1800 j++; 1801 kern_watermark = 0; 1802 } 1803 } 1804 1805 ctsio->ext_data_filled += len_copied; 1806 1807 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_sg_entries: %d, " 1808 "kern_sg_entries: %d\n", ext_sg_entries, 1809 kern_sg_entries)); 1810 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_data_len = %d, " 1811 "kern_data_len = %d\n", ctsio->ext_data_len, 1812 ctsio->kern_data_len)); 1813 1814 1815 /* XXX KDM set residual?? */ 1816bailout: 1817 1818 if (ext_sglist_malloced != 0) 1819 free(ext_sglist, M_CTL); 1820 1821 return (CTL_RETVAL_COMPLETE); 1822} 1823 1824/* 1825 * Serialize a command that went down the "wrong" side, and so was sent to 1826 * this controller for execution. The logic is a little different than the 1827 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 1828 * sent back to the other side, but in the success case, we execute the 1829 * command on this side (XFER mode) or tell the other side to execute it 1830 * (SER_ONLY mode). 1831 */ 1832static int 1833ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 1834{ 1835 struct ctl_softc *softc; 1836 union ctl_ha_msg msg_info; 1837 struct ctl_lun *lun; 1838 int retval = 0; 1839 uint32_t targ_lun; 1840 1841 softc = control_softc; 1842 1843 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 1844 lun = softc->ctl_luns[targ_lun]; 1845 if (lun==NULL) 1846 { 1847 /* 1848 * Why isn't LUN defined? The other side wouldn't 1849 * send a cmd if the LUN is undefined. 1850 */ 1851 printf("%s: Bad JUJU!, LUN is NULL!\n", __func__); 1852 1853 /* "Logical unit not supported" */ 1854 ctl_set_sense_data(&msg_info.scsi.sense_data, 1855 lun, 1856 /*sense_format*/SSD_TYPE_NONE, 1857 /*current_error*/ 1, 1858 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1859 /*asc*/ 0x25, 1860 /*ascq*/ 0x00, 1861 SSD_ELEM_NONE); 1862 1863 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1864 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1865 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1866 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1867 msg_info.hdr.serializing_sc = NULL; 1868 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1869 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1870 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1871 } 1872 return(1); 1873 1874 } 1875 1876 mtx_lock(&lun->lun_lock); 1877 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1878 1879 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 1880 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 1881 ooa_links))) { 1882 case CTL_ACTION_BLOCK: 1883 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 1884 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 1885 blocked_links); 1886 break; 1887 case CTL_ACTION_PASS: 1888 case CTL_ACTION_SKIP: 1889 if (softc->ha_mode == CTL_HA_MODE_XFER) { 1890 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 1891 ctl_enqueue_rtr((union ctl_io *)ctsio); 1892 } else { 1893 1894 /* send msg back to other side */ 1895 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1896 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 1897 msg_info.hdr.msg_type = CTL_MSG_R2R; 1898#if 0 1899 printf("2. pOrig %x\n", (int)msg_info.hdr.original_sc); 1900#endif 1901 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1902 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1903 } 1904 } 1905 break; 1906 case CTL_ACTION_OVERLAP: 1907 /* OVERLAPPED COMMANDS ATTEMPTED */ 1908 ctl_set_sense_data(&msg_info.scsi.sense_data, 1909 lun, 1910 /*sense_format*/SSD_TYPE_NONE, 1911 /*current_error*/ 1, 1912 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1913 /*asc*/ 0x4E, 1914 /*ascq*/ 0x00, 1915 SSD_ELEM_NONE); 1916 1917 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1918 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1919 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1920 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1921 msg_info.hdr.serializing_sc = NULL; 1922 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1923#if 0 1924 printf("BAD JUJU:Major Bummer Overlap\n"); 1925#endif 1926 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1927 retval = 1; 1928 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1929 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1930 } 1931 break; 1932 case CTL_ACTION_OVERLAP_TAG: 1933 /* TAGGED OVERLAPPED COMMANDS (NN = QUEUE TAG) */ 1934 ctl_set_sense_data(&msg_info.scsi.sense_data, 1935 lun, 1936 /*sense_format*/SSD_TYPE_NONE, 1937 /*current_error*/ 1, 1938 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1939 /*asc*/ 0x4D, 1940 /*ascq*/ ctsio->tag_num & 0xff, 1941 SSD_ELEM_NONE); 1942 1943 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1944 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1945 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1946 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1947 msg_info.hdr.serializing_sc = NULL; 1948 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1949#if 0 1950 printf("BAD JUJU:Major Bummer Overlap Tag\n"); 1951#endif 1952 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1953 retval = 1; 1954 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1955 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1956 } 1957 break; 1958 case CTL_ACTION_ERROR: 1959 default: 1960 /* "Internal target failure" */ 1961 ctl_set_sense_data(&msg_info.scsi.sense_data, 1962 lun, 1963 /*sense_format*/SSD_TYPE_NONE, 1964 /*current_error*/ 1, 1965 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 1966 /*asc*/ 0x44, 1967 /*ascq*/ 0x00, 1968 SSD_ELEM_NONE); 1969 1970 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1971 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1972 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1973 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1974 msg_info.hdr.serializing_sc = NULL; 1975 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1976#if 0 1977 printf("BAD JUJU:Major Bummer HW Error\n"); 1978#endif 1979 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1980 retval = 1; 1981 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1982 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1983 } 1984 break; 1985 } 1986 mtx_unlock(&lun->lun_lock); 1987 return (retval); 1988} 1989 1990static int 1991ctl_ioctl_submit_wait(union ctl_io *io) 1992{ 1993 struct ctl_fe_ioctl_params params; 1994 ctl_fe_ioctl_state last_state; 1995 int done, retval; 1996 1997 retval = 0; 1998 1999 bzero(¶ms, sizeof(params)); 2000 2001 mtx_init(¶ms.ioctl_mtx, "ctliocmtx", NULL, MTX_DEF); 2002 cv_init(¶ms.sem, "ctlioccv"); 2003 params.state = CTL_IOCTL_INPROG; 2004 last_state = params.state; 2005 2006 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = ¶ms; 2007 2008 CTL_DEBUG_PRINT(("ctl_ioctl_submit_wait\n")); 2009 2010 /* This shouldn't happen */ 2011 if ((retval = ctl_queue(io)) != CTL_RETVAL_COMPLETE) 2012 return (retval); 2013 2014 done = 0; 2015 2016 do { 2017 mtx_lock(¶ms.ioctl_mtx); 2018 /* 2019 * Check the state here, and don't sleep if the state has 2020 * already changed (i.e. wakeup has already occured, but we 2021 * weren't waiting yet). 2022 */ 2023 if (params.state == last_state) { 2024 /* XXX KDM cv_wait_sig instead? */ 2025 cv_wait(¶ms.sem, ¶ms.ioctl_mtx); 2026 } 2027 last_state = params.state; 2028 2029 switch (params.state) { 2030 case CTL_IOCTL_INPROG: 2031 /* Why did we wake up? */ 2032 /* XXX KDM error here? */ 2033 mtx_unlock(¶ms.ioctl_mtx); 2034 break; 2035 case CTL_IOCTL_DATAMOVE: 2036 CTL_DEBUG_PRINT(("got CTL_IOCTL_DATAMOVE\n")); 2037 2038 /* 2039 * change last_state back to INPROG to avoid 2040 * deadlock on subsequent data moves. 2041 */ 2042 params.state = last_state = CTL_IOCTL_INPROG; 2043 2044 mtx_unlock(¶ms.ioctl_mtx); 2045 ctl_ioctl_do_datamove(&io->scsiio); 2046 /* 2047 * Note that in some cases, most notably writes, 2048 * this will queue the I/O and call us back later. 2049 * In other cases, generally reads, this routine 2050 * will immediately call back and wake us up, 2051 * probably using our own context. 2052 */ 2053 io->scsiio.be_move_done(io); 2054 break; 2055 case CTL_IOCTL_DONE: 2056 mtx_unlock(¶ms.ioctl_mtx); 2057 CTL_DEBUG_PRINT(("got CTL_IOCTL_DONE\n")); 2058 done = 1; 2059 break; 2060 default: 2061 mtx_unlock(¶ms.ioctl_mtx); 2062 /* XXX KDM error here? */ 2063 break; 2064 } 2065 } while (done == 0); 2066 2067 mtx_destroy(¶ms.ioctl_mtx); 2068 cv_destroy(¶ms.sem); 2069 2070 return (CTL_RETVAL_COMPLETE); 2071} 2072 2073static void 2074ctl_ioctl_datamove(union ctl_io *io) 2075{ 2076 struct ctl_fe_ioctl_params *params; 2077 2078 params = (struct ctl_fe_ioctl_params *) 2079 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 2080 2081 mtx_lock(¶ms->ioctl_mtx); 2082 params->state = CTL_IOCTL_DATAMOVE; 2083 cv_broadcast(¶ms->sem); 2084 mtx_unlock(¶ms->ioctl_mtx); 2085} 2086 2087static void 2088ctl_ioctl_done(union ctl_io *io) 2089{ 2090 struct ctl_fe_ioctl_params *params; 2091 2092 params = (struct ctl_fe_ioctl_params *) 2093 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 2094 2095 mtx_lock(¶ms->ioctl_mtx); 2096 params->state = CTL_IOCTL_DONE; 2097 cv_broadcast(¶ms->sem); 2098 mtx_unlock(¶ms->ioctl_mtx); 2099} 2100 2101static void 2102ctl_ioctl_hard_startstop_callback(void *arg, struct cfi_metatask *metatask) 2103{ 2104 struct ctl_fe_ioctl_startstop_info *sd_info; 2105 2106 sd_info = (struct ctl_fe_ioctl_startstop_info *)arg; 2107 2108 sd_info->hs_info.status = metatask->status; 2109 sd_info->hs_info.total_luns = metatask->taskinfo.startstop.total_luns; 2110 sd_info->hs_info.luns_complete = 2111 metatask->taskinfo.startstop.luns_complete; 2112 sd_info->hs_info.luns_failed = metatask->taskinfo.startstop.luns_failed; 2113 2114 cv_broadcast(&sd_info->sem); 2115} 2116 2117static void 2118ctl_ioctl_bbrread_callback(void *arg, struct cfi_metatask *metatask) 2119{ 2120 struct ctl_fe_ioctl_bbrread_info *fe_bbr_info; 2121 2122 fe_bbr_info = (struct ctl_fe_ioctl_bbrread_info *)arg; 2123 2124 mtx_lock(fe_bbr_info->lock); 2125 fe_bbr_info->bbr_info->status = metatask->status; 2126 fe_bbr_info->bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2127 fe_bbr_info->wakeup_done = 1; 2128 mtx_unlock(fe_bbr_info->lock); 2129 2130 cv_broadcast(&fe_bbr_info->sem); 2131} 2132 2133/* 2134 * Returns 0 for success, errno for failure. 2135 */ 2136static int 2137ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2138 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2139{ 2140 union ctl_io *io; 2141 int retval; 2142 2143 retval = 0; 2144 2145 mtx_lock(&lun->lun_lock); 2146 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2147 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2148 ooa_links)) { 2149 struct ctl_ooa_entry *entry; 2150 2151 /* 2152 * If we've got more than we can fit, just count the 2153 * remaining entries. 2154 */ 2155 if (*cur_fill_num >= ooa_hdr->alloc_num) 2156 continue; 2157 2158 entry = &kern_entries[*cur_fill_num]; 2159 2160 entry->tag_num = io->scsiio.tag_num; 2161 entry->lun_num = lun->lun; 2162#ifdef CTL_TIME_IO 2163 entry->start_bt = io->io_hdr.start_bt; 2164#endif 2165 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2166 entry->cdb_len = io->scsiio.cdb_len; 2167 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2168 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2169 2170 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2171 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2172 2173 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2174 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2175 2176 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2177 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2178 2179 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2180 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2181 } 2182 mtx_unlock(&lun->lun_lock); 2183 2184 return (retval); 2185} 2186 2187static void * 2188ctl_copyin_alloc(void *user_addr, int len, char *error_str, 2189 size_t error_str_len) 2190{ 2191 void *kptr; 2192 2193 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2194 2195 if (copyin(user_addr, kptr, len) != 0) { 2196 snprintf(error_str, error_str_len, "Error copying %d bytes " 2197 "from user address %p to kernel address %p", len, 2198 user_addr, kptr); 2199 free(kptr, M_CTL); 2200 return (NULL); 2201 } 2202 2203 return (kptr); 2204} 2205 2206static void 2207ctl_free_args(int num_args, struct ctl_be_arg *args) 2208{ 2209 int i; 2210 2211 if (args == NULL) 2212 return; 2213 2214 for (i = 0; i < num_args; i++) { 2215 free(args[i].kname, M_CTL); 2216 free(args[i].kvalue, M_CTL); 2217 } 2218 2219 free(args, M_CTL); 2220} 2221 2222static struct ctl_be_arg * 2223ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2224 char *error_str, size_t error_str_len) 2225{ 2226 struct ctl_be_arg *args; 2227 int i; 2228 2229 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2230 error_str, error_str_len); 2231 2232 if (args == NULL) 2233 goto bailout; 2234 2235 for (i = 0; i < num_args; i++) { 2236 args[i].kname = NULL; 2237 args[i].kvalue = NULL; 2238 } 2239 2240 for (i = 0; i < num_args; i++) { 2241 uint8_t *tmpptr; 2242 2243 args[i].kname = ctl_copyin_alloc(args[i].name, 2244 args[i].namelen, error_str, error_str_len); 2245 if (args[i].kname == NULL) 2246 goto bailout; 2247 2248 if (args[i].kname[args[i].namelen - 1] != '\0') { 2249 snprintf(error_str, error_str_len, "Argument %d " 2250 "name is not NUL-terminated", i); 2251 goto bailout; 2252 } 2253 2254 if (args[i].flags & CTL_BEARG_RD) { 2255 tmpptr = ctl_copyin_alloc(args[i].value, 2256 args[i].vallen, error_str, error_str_len); 2257 if (tmpptr == NULL) 2258 goto bailout; 2259 if ((args[i].flags & CTL_BEARG_ASCII) 2260 && (tmpptr[args[i].vallen - 1] != '\0')) { 2261 snprintf(error_str, error_str_len, "Argument " 2262 "%d value is not NUL-terminated", i); 2263 goto bailout; 2264 } 2265 args[i].kvalue = tmpptr; 2266 } else { 2267 args[i].kvalue = malloc(args[i].vallen, 2268 M_CTL, M_WAITOK | M_ZERO); 2269 } 2270 } 2271 2272 return (args); 2273bailout: 2274 2275 ctl_free_args(num_args, args); 2276 2277 return (NULL); 2278} 2279 2280static void 2281ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2282{ 2283 int i; 2284 2285 for (i = 0; i < num_args; i++) { 2286 if (args[i].flags & CTL_BEARG_WR) 2287 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2288 } 2289} 2290 2291/* 2292 * Escape characters that are illegal or not recommended in XML. 2293 */ 2294int 2295ctl_sbuf_printf_esc(struct sbuf *sb, char *str, int size) 2296{ 2297 char *end = str + size; 2298 int retval; 2299 2300 retval = 0; 2301 2302 for (; *str && str < end; str++) { 2303 switch (*str) { 2304 case '&': 2305 retval = sbuf_printf(sb, "&"); 2306 break; 2307 case '>': 2308 retval = sbuf_printf(sb, ">"); 2309 break; 2310 case '<': 2311 retval = sbuf_printf(sb, "<"); 2312 break; 2313 default: 2314 retval = sbuf_putc(sb, *str); 2315 break; 2316 } 2317 2318 if (retval != 0) 2319 break; 2320 2321 } 2322 2323 return (retval); 2324} 2325 2326static void 2327ctl_id_sbuf(struct ctl_devid *id, struct sbuf *sb) 2328{ 2329 struct scsi_vpd_id_descriptor *desc; 2330 int i; 2331 2332 if (id == NULL || id->len < 4) 2333 return; 2334 desc = (struct scsi_vpd_id_descriptor *)id->data; 2335 switch (desc->id_type & SVPD_ID_TYPE_MASK) { 2336 case SVPD_ID_TYPE_T10: 2337 sbuf_printf(sb, "t10."); 2338 break; 2339 case SVPD_ID_TYPE_EUI64: 2340 sbuf_printf(sb, "eui."); 2341 break; 2342 case SVPD_ID_TYPE_NAA: 2343 sbuf_printf(sb, "naa."); 2344 break; 2345 case SVPD_ID_TYPE_SCSI_NAME: 2346 break; 2347 } 2348 switch (desc->proto_codeset & SVPD_ID_CODESET_MASK) { 2349 case SVPD_ID_CODESET_BINARY: 2350 for (i = 0; i < desc->length; i++) 2351 sbuf_printf(sb, "%02x", desc->identifier[i]); 2352 break; 2353 case SVPD_ID_CODESET_ASCII: 2354 sbuf_printf(sb, "%.*s", (int)desc->length, 2355 (char *)desc->identifier); 2356 break; 2357 case SVPD_ID_CODESET_UTF8: 2358 sbuf_printf(sb, "%s", (char *)desc->identifier); 2359 break; 2360 } 2361} 2362 2363static int 2364ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2365 struct thread *td) 2366{ 2367 struct ctl_softc *softc; 2368 int retval; 2369 2370 softc = control_softc; 2371 2372 retval = 0; 2373 2374 switch (cmd) { 2375 case CTL_IO: { 2376 union ctl_io *io; 2377 void *pool_tmp; 2378 2379 /* 2380 * If we haven't been "enabled", don't allow any SCSI I/O 2381 * to this FETD. 2382 */ 2383 if ((softc->ioctl_info.flags & CTL_IOCTL_FLAG_ENABLED) == 0) { 2384 retval = EPERM; 2385 break; 2386 } 2387 2388 io = ctl_alloc_io(softc->ioctl_info.port.ctl_pool_ref); 2389 2390 /* 2391 * Need to save the pool reference so it doesn't get 2392 * spammed by the user's ctl_io. 2393 */ 2394 pool_tmp = io->io_hdr.pool; 2395 memcpy(io, (void *)addr, sizeof(*io)); 2396 io->io_hdr.pool = pool_tmp; 2397 2398 /* 2399 * No status yet, so make sure the status is set properly. 2400 */ 2401 io->io_hdr.status = CTL_STATUS_NONE; 2402 2403 /* 2404 * The user sets the initiator ID, target and LUN IDs. 2405 */ 2406 io->io_hdr.nexus.targ_port = softc->ioctl_info.port.targ_port; 2407 io->io_hdr.flags |= CTL_FLAG_USER_REQ; 2408 if ((io->io_hdr.io_type == CTL_IO_SCSI) 2409 && (io->scsiio.tag_type != CTL_TAG_UNTAGGED)) 2410 io->scsiio.tag_num = softc->ioctl_info.cur_tag_num++; 2411 2412 retval = ctl_ioctl_submit_wait(io); 2413 2414 if (retval != 0) { 2415 ctl_free_io(io); 2416 break; 2417 } 2418 2419 memcpy((void *)addr, io, sizeof(*io)); 2420 2421 /* return this to our pool */ 2422 ctl_free_io(io); 2423 2424 break; 2425 } 2426 case CTL_ENABLE_PORT: 2427 case CTL_DISABLE_PORT: 2428 case CTL_SET_PORT_WWNS: { 2429 struct ctl_port *port; 2430 struct ctl_port_entry *entry; 2431 2432 entry = (struct ctl_port_entry *)addr; 2433 2434 mtx_lock(&softc->ctl_lock); 2435 STAILQ_FOREACH(port, &softc->port_list, links) { 2436 int action, done; 2437 2438 action = 0; 2439 done = 0; 2440 2441 if ((entry->port_type == CTL_PORT_NONE) 2442 && (entry->targ_port == port->targ_port)) { 2443 /* 2444 * If the user only wants to enable or 2445 * disable or set WWNs on a specific port, 2446 * do the operation and we're done. 2447 */ 2448 action = 1; 2449 done = 1; 2450 } else if (entry->port_type & port->port_type) { 2451 /* 2452 * Compare the user's type mask with the 2453 * particular frontend type to see if we 2454 * have a match. 2455 */ 2456 action = 1; 2457 done = 0; 2458 2459 /* 2460 * Make sure the user isn't trying to set 2461 * WWNs on multiple ports at the same time. 2462 */ 2463 if (cmd == CTL_SET_PORT_WWNS) { 2464 printf("%s: Can't set WWNs on " 2465 "multiple ports\n", __func__); 2466 retval = EINVAL; 2467 break; 2468 } 2469 } 2470 if (action != 0) { 2471 /* 2472 * XXX KDM we have to drop the lock here, 2473 * because the online/offline operations 2474 * can potentially block. We need to 2475 * reference count the frontends so they 2476 * can't go away, 2477 */ 2478 mtx_unlock(&softc->ctl_lock); 2479 2480 if (cmd == CTL_ENABLE_PORT) { 2481 struct ctl_lun *lun; 2482 2483 STAILQ_FOREACH(lun, &softc->lun_list, 2484 links) { 2485 port->lun_enable(port->targ_lun_arg, 2486 lun->target, 2487 lun->lun); 2488 } 2489 2490 ctl_port_online(port); 2491 } else if (cmd == CTL_DISABLE_PORT) { 2492 struct ctl_lun *lun; 2493 2494 ctl_port_offline(port); 2495 2496 STAILQ_FOREACH(lun, &softc->lun_list, 2497 links) { 2498 port->lun_disable( 2499 port->targ_lun_arg, 2500 lun->target, 2501 lun->lun); 2502 } 2503 } 2504 2505 mtx_lock(&softc->ctl_lock); 2506 2507 if (cmd == CTL_SET_PORT_WWNS) 2508 ctl_port_set_wwns(port, 2509 (entry->flags & CTL_PORT_WWNN_VALID) ? 2510 1 : 0, entry->wwnn, 2511 (entry->flags & CTL_PORT_WWPN_VALID) ? 2512 1 : 0, entry->wwpn); 2513 } 2514 if (done != 0) 2515 break; 2516 } 2517 mtx_unlock(&softc->ctl_lock); 2518 break; 2519 } 2520 case CTL_GET_PORT_LIST: { 2521 struct ctl_port *port; 2522 struct ctl_port_list *list; 2523 int i; 2524 2525 list = (struct ctl_port_list *)addr; 2526 2527 if (list->alloc_len != (list->alloc_num * 2528 sizeof(struct ctl_port_entry))) { 2529 printf("%s: CTL_GET_PORT_LIST: alloc_len %u != " 2530 "alloc_num %u * sizeof(struct ctl_port_entry) " 2531 "%zu\n", __func__, list->alloc_len, 2532 list->alloc_num, sizeof(struct ctl_port_entry)); 2533 retval = EINVAL; 2534 break; 2535 } 2536 list->fill_len = 0; 2537 list->fill_num = 0; 2538 list->dropped_num = 0; 2539 i = 0; 2540 mtx_lock(&softc->ctl_lock); 2541 STAILQ_FOREACH(port, &softc->port_list, links) { 2542 struct ctl_port_entry entry, *list_entry; 2543 2544 if (list->fill_num >= list->alloc_num) { 2545 list->dropped_num++; 2546 continue; 2547 } 2548 2549 entry.port_type = port->port_type; 2550 strlcpy(entry.port_name, port->port_name, 2551 sizeof(entry.port_name)); 2552 entry.targ_port = port->targ_port; 2553 entry.physical_port = port->physical_port; 2554 entry.virtual_port = port->virtual_port; 2555 entry.wwnn = port->wwnn; 2556 entry.wwpn = port->wwpn; 2557 if (port->status & CTL_PORT_STATUS_ONLINE) 2558 entry.online = 1; 2559 else 2560 entry.online = 0; 2561 2562 list_entry = &list->entries[i]; 2563 2564 retval = copyout(&entry, list_entry, sizeof(entry)); 2565 if (retval != 0) { 2566 printf("%s: CTL_GET_PORT_LIST: copyout " 2567 "returned %d\n", __func__, retval); 2568 break; 2569 } 2570 i++; 2571 list->fill_num++; 2572 list->fill_len += sizeof(entry); 2573 } 2574 mtx_unlock(&softc->ctl_lock); 2575 2576 /* 2577 * If this is non-zero, we had a copyout fault, so there's 2578 * probably no point in attempting to set the status inside 2579 * the structure. 2580 */ 2581 if (retval != 0) 2582 break; 2583 2584 if (list->dropped_num > 0) 2585 list->status = CTL_PORT_LIST_NEED_MORE_SPACE; 2586 else 2587 list->status = CTL_PORT_LIST_OK; 2588 break; 2589 } 2590 case CTL_DUMP_OOA: { 2591 struct ctl_lun *lun; 2592 union ctl_io *io; 2593 char printbuf[128]; 2594 struct sbuf sb; 2595 2596 mtx_lock(&softc->ctl_lock); 2597 printf("Dumping OOA queues:\n"); 2598 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2599 mtx_lock(&lun->lun_lock); 2600 for (io = (union ctl_io *)TAILQ_FIRST( 2601 &lun->ooa_queue); io != NULL; 2602 io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2603 ooa_links)) { 2604 sbuf_new(&sb, printbuf, sizeof(printbuf), 2605 SBUF_FIXEDLEN); 2606 sbuf_printf(&sb, "LUN %jd tag 0x%04x%s%s%s%s: ", 2607 (intmax_t)lun->lun, 2608 io->scsiio.tag_num, 2609 (io->io_hdr.flags & 2610 CTL_FLAG_BLOCKED) ? "" : " BLOCKED", 2611 (io->io_hdr.flags & 2612 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 2613 (io->io_hdr.flags & 2614 CTL_FLAG_ABORT) ? " ABORT" : "", 2615 (io->io_hdr.flags & 2616 CTL_FLAG_IS_WAS_ON_RTR) ? " RTR" : ""); 2617 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 2618 sbuf_finish(&sb); 2619 printf("%s\n", sbuf_data(&sb)); 2620 } 2621 mtx_unlock(&lun->lun_lock); 2622 } 2623 printf("OOA queues dump done\n"); 2624 mtx_unlock(&softc->ctl_lock); 2625 break; 2626 } 2627 case CTL_GET_OOA: { 2628 struct ctl_lun *lun; 2629 struct ctl_ooa *ooa_hdr; 2630 struct ctl_ooa_entry *entries; 2631 uint32_t cur_fill_num; 2632 2633 ooa_hdr = (struct ctl_ooa *)addr; 2634 2635 if ((ooa_hdr->alloc_len == 0) 2636 || (ooa_hdr->alloc_num == 0)) { 2637 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2638 "must be non-zero\n", __func__, 2639 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2640 retval = EINVAL; 2641 break; 2642 } 2643 2644 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2645 sizeof(struct ctl_ooa_entry))) { 2646 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2647 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2648 __func__, ooa_hdr->alloc_len, 2649 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2650 retval = EINVAL; 2651 break; 2652 } 2653 2654 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2655 if (entries == NULL) { 2656 printf("%s: could not allocate %d bytes for OOA " 2657 "dump\n", __func__, ooa_hdr->alloc_len); 2658 retval = ENOMEM; 2659 break; 2660 } 2661 2662 mtx_lock(&softc->ctl_lock); 2663 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2664 && ((ooa_hdr->lun_num >= CTL_MAX_LUNS) 2665 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2666 mtx_unlock(&softc->ctl_lock); 2667 free(entries, M_CTL); 2668 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2669 __func__, (uintmax_t)ooa_hdr->lun_num); 2670 retval = EINVAL; 2671 break; 2672 } 2673 2674 cur_fill_num = 0; 2675 2676 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2677 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2678 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2679 ooa_hdr, entries); 2680 if (retval != 0) 2681 break; 2682 } 2683 if (retval != 0) { 2684 mtx_unlock(&softc->ctl_lock); 2685 free(entries, M_CTL); 2686 break; 2687 } 2688 } else { 2689 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2690 2691 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num,ooa_hdr, 2692 entries); 2693 } 2694 mtx_unlock(&softc->ctl_lock); 2695 2696 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2697 ooa_hdr->fill_len = ooa_hdr->fill_num * 2698 sizeof(struct ctl_ooa_entry); 2699 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2700 if (retval != 0) { 2701 printf("%s: error copying out %d bytes for OOA dump\n", 2702 __func__, ooa_hdr->fill_len); 2703 } 2704 2705 getbintime(&ooa_hdr->cur_bt); 2706 2707 if (cur_fill_num > ooa_hdr->alloc_num) { 2708 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2709 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2710 } else { 2711 ooa_hdr->dropped_num = 0; 2712 ooa_hdr->status = CTL_OOA_OK; 2713 } 2714 2715 free(entries, M_CTL); 2716 break; 2717 } 2718 case CTL_CHECK_OOA: { 2719 union ctl_io *io; 2720 struct ctl_lun *lun; 2721 struct ctl_ooa_info *ooa_info; 2722 2723 2724 ooa_info = (struct ctl_ooa_info *)addr; 2725 2726 if (ooa_info->lun_id >= CTL_MAX_LUNS) { 2727 ooa_info->status = CTL_OOA_INVALID_LUN; 2728 break; 2729 } 2730 mtx_lock(&softc->ctl_lock); 2731 lun = softc->ctl_luns[ooa_info->lun_id]; 2732 if (lun == NULL) { 2733 mtx_unlock(&softc->ctl_lock); 2734 ooa_info->status = CTL_OOA_INVALID_LUN; 2735 break; 2736 } 2737 mtx_lock(&lun->lun_lock); 2738 mtx_unlock(&softc->ctl_lock); 2739 ooa_info->num_entries = 0; 2740 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 2741 io != NULL; io = (union ctl_io *)TAILQ_NEXT( 2742 &io->io_hdr, ooa_links)) { 2743 ooa_info->num_entries++; 2744 } 2745 mtx_unlock(&lun->lun_lock); 2746 2747 ooa_info->status = CTL_OOA_SUCCESS; 2748 2749 break; 2750 } 2751 case CTL_HARD_START: 2752 case CTL_HARD_STOP: { 2753 struct ctl_fe_ioctl_startstop_info ss_info; 2754 struct cfi_metatask *metatask; 2755 struct mtx hs_mtx; 2756 2757 mtx_init(&hs_mtx, "HS Mutex", NULL, MTX_DEF); 2758 2759 cv_init(&ss_info.sem, "hard start/stop cv" ); 2760 2761 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2762 if (metatask == NULL) { 2763 retval = ENOMEM; 2764 mtx_destroy(&hs_mtx); 2765 break; 2766 } 2767 2768 if (cmd == CTL_HARD_START) 2769 metatask->tasktype = CFI_TASK_STARTUP; 2770 else 2771 metatask->tasktype = CFI_TASK_SHUTDOWN; 2772 2773 metatask->callback = ctl_ioctl_hard_startstop_callback; 2774 metatask->callback_arg = &ss_info; 2775 2776 cfi_action(metatask); 2777 2778 /* Wait for the callback */ 2779 mtx_lock(&hs_mtx); 2780 cv_wait_sig(&ss_info.sem, &hs_mtx); 2781 mtx_unlock(&hs_mtx); 2782 2783 /* 2784 * All information has been copied from the metatask by the 2785 * time cv_broadcast() is called, so we free the metatask here. 2786 */ 2787 cfi_free_metatask(metatask); 2788 2789 memcpy((void *)addr, &ss_info.hs_info, sizeof(ss_info.hs_info)); 2790 2791 mtx_destroy(&hs_mtx); 2792 break; 2793 } 2794 case CTL_BBRREAD: { 2795 struct ctl_bbrread_info *bbr_info; 2796 struct ctl_fe_ioctl_bbrread_info fe_bbr_info; 2797 struct mtx bbr_mtx; 2798 struct cfi_metatask *metatask; 2799 2800 bbr_info = (struct ctl_bbrread_info *)addr; 2801 2802 bzero(&fe_bbr_info, sizeof(fe_bbr_info)); 2803 2804 bzero(&bbr_mtx, sizeof(bbr_mtx)); 2805 mtx_init(&bbr_mtx, "BBR Mutex", NULL, MTX_DEF); 2806 2807 fe_bbr_info.bbr_info = bbr_info; 2808 fe_bbr_info.lock = &bbr_mtx; 2809 2810 cv_init(&fe_bbr_info.sem, "BBR read cv"); 2811 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2812 2813 if (metatask == NULL) { 2814 mtx_destroy(&bbr_mtx); 2815 cv_destroy(&fe_bbr_info.sem); 2816 retval = ENOMEM; 2817 break; 2818 } 2819 metatask->tasktype = CFI_TASK_BBRREAD; 2820 metatask->callback = ctl_ioctl_bbrread_callback; 2821 metatask->callback_arg = &fe_bbr_info; 2822 metatask->taskinfo.bbrread.lun_num = bbr_info->lun_num; 2823 metatask->taskinfo.bbrread.lba = bbr_info->lba; 2824 metatask->taskinfo.bbrread.len = bbr_info->len; 2825 2826 cfi_action(metatask); 2827 2828 mtx_lock(&bbr_mtx); 2829 while (fe_bbr_info.wakeup_done == 0) 2830 cv_wait_sig(&fe_bbr_info.sem, &bbr_mtx); 2831 mtx_unlock(&bbr_mtx); 2832 2833 bbr_info->status = metatask->status; 2834 bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2835 bbr_info->scsi_status = metatask->taskinfo.bbrread.scsi_status; 2836 memcpy(&bbr_info->sense_data, 2837 &metatask->taskinfo.bbrread.sense_data, 2838 MIN(sizeof(bbr_info->sense_data), 2839 sizeof(metatask->taskinfo.bbrread.sense_data))); 2840 2841 cfi_free_metatask(metatask); 2842 2843 mtx_destroy(&bbr_mtx); 2844 cv_destroy(&fe_bbr_info.sem); 2845 2846 break; 2847 } 2848 case CTL_DELAY_IO: { 2849 struct ctl_io_delay_info *delay_info; 2850#ifdef CTL_IO_DELAY 2851 struct ctl_lun *lun; 2852#endif /* CTL_IO_DELAY */ 2853 2854 delay_info = (struct ctl_io_delay_info *)addr; 2855 2856#ifdef CTL_IO_DELAY 2857 mtx_lock(&softc->ctl_lock); 2858 2859 if ((delay_info->lun_id >= CTL_MAX_LUNS) 2860 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2861 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2862 } else { 2863 lun = softc->ctl_luns[delay_info->lun_id]; 2864 mtx_lock(&lun->lun_lock); 2865 2866 delay_info->status = CTL_DELAY_STATUS_OK; 2867 2868 switch (delay_info->delay_type) { 2869 case CTL_DELAY_TYPE_CONT: 2870 break; 2871 case CTL_DELAY_TYPE_ONESHOT: 2872 break; 2873 default: 2874 delay_info->status = 2875 CTL_DELAY_STATUS_INVALID_TYPE; 2876 break; 2877 } 2878 2879 switch (delay_info->delay_loc) { 2880 case CTL_DELAY_LOC_DATAMOVE: 2881 lun->delay_info.datamove_type = 2882 delay_info->delay_type; 2883 lun->delay_info.datamove_delay = 2884 delay_info->delay_secs; 2885 break; 2886 case CTL_DELAY_LOC_DONE: 2887 lun->delay_info.done_type = 2888 delay_info->delay_type; 2889 lun->delay_info.done_delay = 2890 delay_info->delay_secs; 2891 break; 2892 default: 2893 delay_info->status = 2894 CTL_DELAY_STATUS_INVALID_LOC; 2895 break; 2896 } 2897 mtx_unlock(&lun->lun_lock); 2898 } 2899 2900 mtx_unlock(&softc->ctl_lock); 2901#else 2902 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2903#endif /* CTL_IO_DELAY */ 2904 break; 2905 } 2906 case CTL_REALSYNC_SET: { 2907 int *syncstate; 2908 2909 syncstate = (int *)addr; 2910 2911 mtx_lock(&softc->ctl_lock); 2912 switch (*syncstate) { 2913 case 0: 2914 softc->flags &= ~CTL_FLAG_REAL_SYNC; 2915 break; 2916 case 1: 2917 softc->flags |= CTL_FLAG_REAL_SYNC; 2918 break; 2919 default: 2920 retval = EINVAL; 2921 break; 2922 } 2923 mtx_unlock(&softc->ctl_lock); 2924 break; 2925 } 2926 case CTL_REALSYNC_GET: { 2927 int *syncstate; 2928 2929 syncstate = (int*)addr; 2930 2931 mtx_lock(&softc->ctl_lock); 2932 if (softc->flags & CTL_FLAG_REAL_SYNC) 2933 *syncstate = 1; 2934 else 2935 *syncstate = 0; 2936 mtx_unlock(&softc->ctl_lock); 2937 2938 break; 2939 } 2940 case CTL_SETSYNC: 2941 case CTL_GETSYNC: { 2942 struct ctl_sync_info *sync_info; 2943 struct ctl_lun *lun; 2944 2945 sync_info = (struct ctl_sync_info *)addr; 2946 2947 mtx_lock(&softc->ctl_lock); 2948 lun = softc->ctl_luns[sync_info->lun_id]; 2949 if (lun == NULL) { 2950 mtx_unlock(&softc->ctl_lock); 2951 sync_info->status = CTL_GS_SYNC_NO_LUN; 2952 } 2953 /* 2954 * Get or set the sync interval. We're not bounds checking 2955 * in the set case, hopefully the user won't do something 2956 * silly. 2957 */ 2958 mtx_lock(&lun->lun_lock); 2959 mtx_unlock(&softc->ctl_lock); 2960 if (cmd == CTL_GETSYNC) 2961 sync_info->sync_interval = lun->sync_interval; 2962 else 2963 lun->sync_interval = sync_info->sync_interval; 2964 mtx_unlock(&lun->lun_lock); 2965 2966 sync_info->status = CTL_GS_SYNC_OK; 2967 2968 break; 2969 } 2970 case CTL_GETSTATS: { 2971 struct ctl_stats *stats; 2972 struct ctl_lun *lun; 2973 int i; 2974 2975 stats = (struct ctl_stats *)addr; 2976 2977 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2978 stats->alloc_len) { 2979 stats->status = CTL_SS_NEED_MORE_SPACE; 2980 stats->num_luns = softc->num_luns; 2981 break; 2982 } 2983 /* 2984 * XXX KDM no locking here. If the LUN list changes, 2985 * things can blow up. 2986 */ 2987 for (i = 0, lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; 2988 i++, lun = STAILQ_NEXT(lun, links)) { 2989 retval = copyout(&lun->stats, &stats->lun_stats[i], 2990 sizeof(lun->stats)); 2991 if (retval != 0) 2992 break; 2993 } 2994 stats->num_luns = softc->num_luns; 2995 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2996 softc->num_luns; 2997 stats->status = CTL_SS_OK; 2998#ifdef CTL_TIME_IO 2999 stats->flags = CTL_STATS_FLAG_TIME_VALID; 3000#else 3001 stats->flags = CTL_STATS_FLAG_NONE; 3002#endif 3003 getnanouptime(&stats->timestamp); 3004 break; 3005 } 3006 case CTL_ERROR_INJECT: { 3007 struct ctl_error_desc *err_desc, *new_err_desc; 3008 struct ctl_lun *lun; 3009 3010 err_desc = (struct ctl_error_desc *)addr; 3011 3012 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 3013 M_WAITOK | M_ZERO); 3014 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 3015 3016 mtx_lock(&softc->ctl_lock); 3017 lun = softc->ctl_luns[err_desc->lun_id]; 3018 if (lun == NULL) { 3019 mtx_unlock(&softc->ctl_lock); 3020 free(new_err_desc, M_CTL); 3021 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 3022 __func__, (uintmax_t)err_desc->lun_id); 3023 retval = EINVAL; 3024 break; 3025 } 3026 mtx_lock(&lun->lun_lock); 3027 mtx_unlock(&softc->ctl_lock); 3028 3029 /* 3030 * We could do some checking here to verify the validity 3031 * of the request, but given the complexity of error 3032 * injection requests, the checking logic would be fairly 3033 * complex. 3034 * 3035 * For now, if the request is invalid, it just won't get 3036 * executed and might get deleted. 3037 */ 3038 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 3039 3040 /* 3041 * XXX KDM check to make sure the serial number is unique, 3042 * in case we somehow manage to wrap. That shouldn't 3043 * happen for a very long time, but it's the right thing to 3044 * do. 3045 */ 3046 new_err_desc->serial = lun->error_serial; 3047 err_desc->serial = lun->error_serial; 3048 lun->error_serial++; 3049 3050 mtx_unlock(&lun->lun_lock); 3051 break; 3052 } 3053 case CTL_ERROR_INJECT_DELETE: { 3054 struct ctl_error_desc *delete_desc, *desc, *desc2; 3055 struct ctl_lun *lun; 3056 int delete_done; 3057 3058 delete_desc = (struct ctl_error_desc *)addr; 3059 delete_done = 0; 3060 3061 mtx_lock(&softc->ctl_lock); 3062 lun = softc->ctl_luns[delete_desc->lun_id]; 3063 if (lun == NULL) { 3064 mtx_unlock(&softc->ctl_lock); 3065 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 3066 __func__, (uintmax_t)delete_desc->lun_id); 3067 retval = EINVAL; 3068 break; 3069 } 3070 mtx_lock(&lun->lun_lock); 3071 mtx_unlock(&softc->ctl_lock); 3072 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 3073 if (desc->serial != delete_desc->serial) 3074 continue; 3075 3076 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 3077 links); 3078 free(desc, M_CTL); 3079 delete_done = 1; 3080 } 3081 mtx_unlock(&lun->lun_lock); 3082 if (delete_done == 0) { 3083 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 3084 "error serial %ju on LUN %u\n", __func__, 3085 delete_desc->serial, delete_desc->lun_id); 3086 retval = EINVAL; 3087 break; 3088 } 3089 break; 3090 } 3091 case CTL_DUMP_STRUCTS: { 3092 int i, j, k; 3093 struct ctl_port *port; 3094 struct ctl_frontend *fe; 3095 3096 mtx_lock(&softc->ctl_lock); 3097 printf("CTL Persistent Reservation information start:\n"); 3098 for (i = 0; i < CTL_MAX_LUNS; i++) { 3099 struct ctl_lun *lun; 3100 3101 lun = softc->ctl_luns[i]; 3102 3103 if ((lun == NULL) 3104 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 3105 continue; 3106 3107 for (j = 0; j < (CTL_MAX_PORTS * 2); j++) { 3108 if (lun->pr_keys[j] == NULL) 3109 continue; 3110 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 3111 if (lun->pr_keys[j][k] == 0) 3112 continue; 3113 printf(" LUN %d port %d iid %d key " 3114 "%#jx\n", i, j, k, 3115 (uintmax_t)lun->pr_keys[j][k]); 3116 } 3117 } 3118 } 3119 printf("CTL Persistent Reservation information end\n"); 3120 printf("CTL Ports:\n"); 3121 STAILQ_FOREACH(port, &softc->port_list, links) { 3122 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 3123 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 3124 port->frontend->name, port->port_type, 3125 port->physical_port, port->virtual_port, 3126 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 3127 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3128 if (port->wwpn_iid[j].in_use == 0 && 3129 port->wwpn_iid[j].wwpn == 0 && 3130 port->wwpn_iid[j].name == NULL) 3131 continue; 3132 3133 printf(" iid %u use %d WWPN %#jx '%s'\n", 3134 j, port->wwpn_iid[j].in_use, 3135 (uintmax_t)port->wwpn_iid[j].wwpn, 3136 port->wwpn_iid[j].name); 3137 } 3138 } 3139 printf("CTL Port information end\n"); 3140 mtx_unlock(&softc->ctl_lock); 3141 /* 3142 * XXX KDM calling this without a lock. We'd likely want 3143 * to drop the lock before calling the frontend's dump 3144 * routine anyway. 3145 */ 3146 printf("CTL Frontends:\n"); 3147 STAILQ_FOREACH(fe, &softc->fe_list, links) { 3148 printf(" Frontend '%s'\n", fe->name); 3149 if (fe->fe_dump != NULL) 3150 fe->fe_dump(); 3151 } 3152 printf("CTL Frontend information end\n"); 3153 break; 3154 } 3155 case CTL_LUN_REQ: { 3156 struct ctl_lun_req *lun_req; 3157 struct ctl_backend_driver *backend; 3158 3159 lun_req = (struct ctl_lun_req *)addr; 3160 3161 backend = ctl_backend_find(lun_req->backend); 3162 if (backend == NULL) { 3163 lun_req->status = CTL_LUN_ERROR; 3164 snprintf(lun_req->error_str, 3165 sizeof(lun_req->error_str), 3166 "Backend \"%s\" not found.", 3167 lun_req->backend); 3168 break; 3169 } 3170 if (lun_req->num_be_args > 0) { 3171 lun_req->kern_be_args = ctl_copyin_args( 3172 lun_req->num_be_args, 3173 lun_req->be_args, 3174 lun_req->error_str, 3175 sizeof(lun_req->error_str)); 3176 if (lun_req->kern_be_args == NULL) { 3177 lun_req->status = CTL_LUN_ERROR; 3178 break; 3179 } 3180 } 3181 3182 retval = backend->ioctl(dev, cmd, addr, flag, td); 3183 3184 if (lun_req->num_be_args > 0) { 3185 ctl_copyout_args(lun_req->num_be_args, 3186 lun_req->kern_be_args); 3187 ctl_free_args(lun_req->num_be_args, 3188 lun_req->kern_be_args); 3189 } 3190 break; 3191 } 3192 case CTL_LUN_LIST: { 3193 struct sbuf *sb; 3194 struct ctl_lun *lun; 3195 struct ctl_lun_list *list; 3196 struct ctl_option *opt; 3197 3198 list = (struct ctl_lun_list *)addr; 3199 3200 /* 3201 * Allocate a fixed length sbuf here, based on the length 3202 * of the user's buffer. We could allocate an auto-extending 3203 * buffer, and then tell the user how much larger our 3204 * amount of data is than his buffer, but that presents 3205 * some problems: 3206 * 3207 * 1. The sbuf(9) routines use a blocking malloc, and so 3208 * we can't hold a lock while calling them with an 3209 * auto-extending buffer. 3210 * 3211 * 2. There is not currently a LUN reference counting 3212 * mechanism, outside of outstanding transactions on 3213 * the LUN's OOA queue. So a LUN could go away on us 3214 * while we're getting the LUN number, backend-specific 3215 * information, etc. Thus, given the way things 3216 * currently work, we need to hold the CTL lock while 3217 * grabbing LUN information. 3218 * 3219 * So, from the user's standpoint, the best thing to do is 3220 * allocate what he thinks is a reasonable buffer length, 3221 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3222 * double the buffer length and try again. (And repeat 3223 * that until he succeeds.) 3224 */ 3225 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3226 if (sb == NULL) { 3227 list->status = CTL_LUN_LIST_ERROR; 3228 snprintf(list->error_str, sizeof(list->error_str), 3229 "Unable to allocate %d bytes for LUN list", 3230 list->alloc_len); 3231 break; 3232 } 3233 3234 sbuf_printf(sb, "<ctllunlist>\n"); 3235 3236 mtx_lock(&softc->ctl_lock); 3237 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3238 mtx_lock(&lun->lun_lock); 3239 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3240 (uintmax_t)lun->lun); 3241 3242 /* 3243 * Bail out as soon as we see that we've overfilled 3244 * the buffer. 3245 */ 3246 if (retval != 0) 3247 break; 3248 3249 retval = sbuf_printf(sb, "\t<backend_type>%s" 3250 "</backend_type>\n", 3251 (lun->backend == NULL) ? "none" : 3252 lun->backend->name); 3253 3254 if (retval != 0) 3255 break; 3256 3257 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3258 lun->be_lun->lun_type); 3259 3260 if (retval != 0) 3261 break; 3262 3263 if (lun->backend == NULL) { 3264 retval = sbuf_printf(sb, "</lun>\n"); 3265 if (retval != 0) 3266 break; 3267 continue; 3268 } 3269 3270 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3271 (lun->be_lun->maxlba > 0) ? 3272 lun->be_lun->maxlba + 1 : 0); 3273 3274 if (retval != 0) 3275 break; 3276 3277 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3278 lun->be_lun->blocksize); 3279 3280 if (retval != 0) 3281 break; 3282 3283 retval = sbuf_printf(sb, "\t<serial_number>"); 3284 3285 if (retval != 0) 3286 break; 3287 3288 retval = ctl_sbuf_printf_esc(sb, 3289 lun->be_lun->serial_num, 3290 sizeof(lun->be_lun->serial_num)); 3291 3292 if (retval != 0) 3293 break; 3294 3295 retval = sbuf_printf(sb, "</serial_number>\n"); 3296 3297 if (retval != 0) 3298 break; 3299 3300 retval = sbuf_printf(sb, "\t<device_id>"); 3301 3302 if (retval != 0) 3303 break; 3304 3305 retval = ctl_sbuf_printf_esc(sb, 3306 lun->be_lun->device_id, 3307 sizeof(lun->be_lun->device_id)); 3308 3309 if (retval != 0) 3310 break; 3311 3312 retval = sbuf_printf(sb, "</device_id>\n"); 3313 3314 if (retval != 0) 3315 break; 3316 3317 if (lun->backend->lun_info != NULL) { 3318 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3319 if (retval != 0) 3320 break; 3321 } 3322 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3323 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3324 opt->name, opt->value, opt->name); 3325 if (retval != 0) 3326 break; 3327 } 3328 3329 retval = sbuf_printf(sb, "</lun>\n"); 3330 3331 if (retval != 0) 3332 break; 3333 mtx_unlock(&lun->lun_lock); 3334 } 3335 if (lun != NULL) 3336 mtx_unlock(&lun->lun_lock); 3337 mtx_unlock(&softc->ctl_lock); 3338 3339 if ((retval != 0) 3340 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3341 retval = 0; 3342 sbuf_delete(sb); 3343 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3344 snprintf(list->error_str, sizeof(list->error_str), 3345 "Out of space, %d bytes is too small", 3346 list->alloc_len); 3347 break; 3348 } 3349 3350 sbuf_finish(sb); 3351 3352 retval = copyout(sbuf_data(sb), list->lun_xml, 3353 sbuf_len(sb) + 1); 3354 3355 list->fill_len = sbuf_len(sb) + 1; 3356 list->status = CTL_LUN_LIST_OK; 3357 sbuf_delete(sb); 3358 break; 3359 } 3360 case CTL_ISCSI: { 3361 struct ctl_iscsi *ci; 3362 struct ctl_frontend *fe; 3363 3364 ci = (struct ctl_iscsi *)addr; 3365 3366 fe = ctl_frontend_find("iscsi"); 3367 if (fe == NULL) { 3368 ci->status = CTL_ISCSI_ERROR; 3369 snprintf(ci->error_str, sizeof(ci->error_str), 3370 "Frontend \"iscsi\" not found."); 3371 break; 3372 } 3373 3374 retval = fe->ioctl(dev, cmd, addr, flag, td); 3375 break; 3376 } 3377 case CTL_PORT_REQ: { 3378 struct ctl_req *req; 3379 struct ctl_frontend *fe; 3380 3381 req = (struct ctl_req *)addr; 3382 3383 fe = ctl_frontend_find(req->driver); 3384 if (fe == NULL) { 3385 req->status = CTL_LUN_ERROR; 3386 snprintf(req->error_str, sizeof(req->error_str), 3387 "Frontend \"%s\" not found.", req->driver); 3388 break; 3389 } 3390 if (req->num_args > 0) { 3391 req->kern_args = ctl_copyin_args(req->num_args, 3392 req->args, req->error_str, sizeof(req->error_str)); 3393 if (req->kern_args == NULL) { 3394 req->status = CTL_LUN_ERROR; 3395 break; 3396 } 3397 } 3398 3399 retval = fe->ioctl(dev, cmd, addr, flag, td); 3400 3401 if (req->num_args > 0) { 3402 ctl_copyout_args(req->num_args, req->kern_args); 3403 ctl_free_args(req->num_args, req->kern_args); 3404 } 3405 break; 3406 } 3407 case CTL_PORT_LIST: { 3408 struct sbuf *sb; 3409 struct ctl_port *port; 3410 struct ctl_lun_list *list; 3411 struct ctl_option *opt; 3412 int j; 3413 uint32_t plun; 3414 3415 list = (struct ctl_lun_list *)addr; 3416 3417 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3418 if (sb == NULL) { 3419 list->status = CTL_LUN_LIST_ERROR; 3420 snprintf(list->error_str, sizeof(list->error_str), 3421 "Unable to allocate %d bytes for LUN list", 3422 list->alloc_len); 3423 break; 3424 } 3425 3426 sbuf_printf(sb, "<ctlportlist>\n"); 3427 3428 mtx_lock(&softc->ctl_lock); 3429 STAILQ_FOREACH(port, &softc->port_list, links) { 3430 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3431 (uintmax_t)port->targ_port); 3432 3433 /* 3434 * Bail out as soon as we see that we've overfilled 3435 * the buffer. 3436 */ 3437 if (retval != 0) 3438 break; 3439 3440 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3441 "</frontend_type>\n", port->frontend->name); 3442 if (retval != 0) 3443 break; 3444 3445 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3446 port->port_type); 3447 if (retval != 0) 3448 break; 3449 3450 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3451 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3452 if (retval != 0) 3453 break; 3454 3455 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3456 port->port_name); 3457 if (retval != 0) 3458 break; 3459 3460 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3461 port->physical_port); 3462 if (retval != 0) 3463 break; 3464 3465 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3466 port->virtual_port); 3467 if (retval != 0) 3468 break; 3469 3470 if (port->target_devid != NULL) { 3471 sbuf_printf(sb, "\t<target>"); 3472 ctl_id_sbuf(port->target_devid, sb); 3473 sbuf_printf(sb, "</target>\n"); 3474 } 3475 3476 if (port->port_devid != NULL) { 3477 sbuf_printf(sb, "\t<port>"); 3478 ctl_id_sbuf(port->port_devid, sb); 3479 sbuf_printf(sb, "</port>\n"); 3480 } 3481 3482 if (port->port_info != NULL) { 3483 retval = port->port_info(port->onoff_arg, sb); 3484 if (retval != 0) 3485 break; 3486 } 3487 STAILQ_FOREACH(opt, &port->options, links) { 3488 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3489 opt->name, opt->value, opt->name); 3490 if (retval != 0) 3491 break; 3492 } 3493 3494 if (port->lun_map != NULL) { 3495 sbuf_printf(sb, "\t<lun_map>on</lun_map>\n"); 3496 for (j = 0; j < CTL_MAX_LUNS; j++) { 3497 plun = ctl_lun_map_from_port(port, j); 3498 if (plun >= CTL_MAX_LUNS) 3499 continue; 3500 sbuf_printf(sb, 3501 "\t<lun id=\"%u\">%u</lun>\n", 3502 j, plun); 3503 } 3504 } 3505 3506 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3507 if (port->wwpn_iid[j].in_use == 0 || 3508 (port->wwpn_iid[j].wwpn == 0 && 3509 port->wwpn_iid[j].name == NULL)) 3510 continue; 3511 3512 if (port->wwpn_iid[j].name != NULL) 3513 retval = sbuf_printf(sb, 3514 "\t<initiator id=\"%u\">%s</initiator>\n", 3515 j, port->wwpn_iid[j].name); 3516 else 3517 retval = sbuf_printf(sb, 3518 "\t<initiator id=\"%u\">naa.%08jx</initiator>\n", 3519 j, port->wwpn_iid[j].wwpn); 3520 if (retval != 0) 3521 break; 3522 } 3523 if (retval != 0) 3524 break; 3525 3526 retval = sbuf_printf(sb, "</targ_port>\n"); 3527 if (retval != 0) 3528 break; 3529 } 3530 mtx_unlock(&softc->ctl_lock); 3531 3532 if ((retval != 0) 3533 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3534 retval = 0; 3535 sbuf_delete(sb); 3536 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3537 snprintf(list->error_str, sizeof(list->error_str), 3538 "Out of space, %d bytes is too small", 3539 list->alloc_len); 3540 break; 3541 } 3542 3543 sbuf_finish(sb); 3544 3545 retval = copyout(sbuf_data(sb), list->lun_xml, 3546 sbuf_len(sb) + 1); 3547 3548 list->fill_len = sbuf_len(sb) + 1; 3549 list->status = CTL_LUN_LIST_OK; 3550 sbuf_delete(sb); 3551 break; 3552 } 3553 case CTL_LUN_MAP: { 3554 struct ctl_lun_map *lm = (struct ctl_lun_map *)addr; 3555 struct ctl_port *port; 3556 3557 mtx_lock(&softc->ctl_lock); 3558 if (lm->port >= CTL_MAX_PORTS || 3559 (port = softc->ctl_ports[lm->port]) == NULL) { 3560 mtx_unlock(&softc->ctl_lock); 3561 return (ENXIO); 3562 } 3563 if (lm->plun < CTL_MAX_LUNS) { 3564 if (lm->lun == UINT32_MAX) 3565 retval = ctl_lun_map_unset(port, lm->plun); 3566 else if (lm->lun < CTL_MAX_LUNS && 3567 softc->ctl_luns[lm->lun] != NULL) 3568 retval = ctl_lun_map_set(port, lm->plun, lm->lun); 3569 else { 3570 mtx_unlock(&softc->ctl_lock); 3571 return (ENXIO); 3572 } 3573 } else if (lm->plun == UINT32_MAX) { 3574 if (lm->lun == UINT32_MAX) 3575 retval = ctl_lun_map_deinit(port); 3576 else 3577 retval = ctl_lun_map_init(port); 3578 } else { 3579 mtx_unlock(&softc->ctl_lock); 3580 return (ENXIO); 3581 } 3582 mtx_unlock(&softc->ctl_lock); 3583 break; 3584 } 3585 default: { 3586 /* XXX KDM should we fix this? */ 3587#if 0 3588 struct ctl_backend_driver *backend; 3589 unsigned int type; 3590 int found; 3591 3592 found = 0; 3593 3594 /* 3595 * We encode the backend type as the ioctl type for backend 3596 * ioctls. So parse it out here, and then search for a 3597 * backend of this type. 3598 */ 3599 type = _IOC_TYPE(cmd); 3600 3601 STAILQ_FOREACH(backend, &softc->be_list, links) { 3602 if (backend->type == type) { 3603 found = 1; 3604 break; 3605 } 3606 } 3607 if (found == 0) { 3608 printf("ctl: unknown ioctl command %#lx or backend " 3609 "%d\n", cmd, type); 3610 retval = EINVAL; 3611 break; 3612 } 3613 retval = backend->ioctl(dev, cmd, addr, flag, td); 3614#endif 3615 retval = ENOTTY; 3616 break; 3617 } 3618 } 3619 return (retval); 3620} 3621 3622uint32_t 3623ctl_get_initindex(struct ctl_nexus *nexus) 3624{ 3625 if (nexus->targ_port < CTL_MAX_PORTS) 3626 return (nexus->initid.id + 3627 (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3628 else 3629 return (nexus->initid.id + 3630 ((nexus->targ_port - CTL_MAX_PORTS) * 3631 CTL_MAX_INIT_PER_PORT)); 3632} 3633 3634uint32_t 3635ctl_get_resindex(struct ctl_nexus *nexus) 3636{ 3637 return (nexus->initid.id + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3638} 3639 3640uint32_t 3641ctl_port_idx(int port_num) 3642{ 3643 if (port_num < CTL_MAX_PORTS) 3644 return(port_num); 3645 else 3646 return(port_num - CTL_MAX_PORTS); 3647} 3648 3649int 3650ctl_lun_map_init(struct ctl_port *port) 3651{ 3652 uint32_t i; 3653 3654 if (port->lun_map == NULL) 3655 port->lun_map = malloc(sizeof(uint32_t) * CTL_MAX_LUNS, 3656 M_CTL, M_NOWAIT); 3657 if (port->lun_map == NULL) 3658 return (ENOMEM); 3659 for (i = 0; i < CTL_MAX_LUNS; i++) 3660 port->lun_map[i] = UINT32_MAX; 3661 return (0); 3662} 3663 3664int 3665ctl_lun_map_deinit(struct ctl_port *port) 3666{ 3667 3668 if (port->lun_map == NULL) 3669 return (0); 3670 free(port->lun_map, M_CTL); 3671 port->lun_map = NULL; 3672 return (0); 3673} 3674 3675int 3676ctl_lun_map_set(struct ctl_port *port, uint32_t plun, uint32_t glun) 3677{ 3678 int status; 3679 3680 if (port->lun_map == NULL) { 3681 status = ctl_lun_map_init(port); 3682 if (status != 0) 3683 return (status); 3684 } 3685 port->lun_map[plun] = glun; 3686 return (0); 3687} 3688 3689int 3690ctl_lun_map_unset(struct ctl_port *port, uint32_t plun) 3691{ 3692 3693 if (port->lun_map == NULL) 3694 return (0); 3695 port->lun_map[plun] = UINT32_MAX; 3696 return (0); 3697} 3698 3699int 3700ctl_lun_map_unsetg(struct ctl_port *port, uint32_t glun) 3701{ 3702 int i; 3703 3704 if (port->lun_map == NULL) 3705 return (0); 3706 for (i = 0; i < CTL_MAX_LUNS; i++) { 3707 if (port->lun_map[i] == glun) 3708 port->lun_map[i] = UINT32_MAX; 3709 } 3710 return (0); 3711} 3712 3713uint32_t 3714ctl_lun_map_from_port(struct ctl_port *port, uint32_t lun_id) 3715{ 3716 3717 if (port == NULL) 3718 return (UINT32_MAX); 3719 if (port->lun_map == NULL || lun_id >= CTL_MAX_LUNS) 3720 return (lun_id); 3721 return (port->lun_map[lun_id]); 3722} 3723 3724uint32_t 3725ctl_lun_map_to_port(struct ctl_port *port, uint32_t lun_id) 3726{ 3727 uint32_t i; 3728 3729 if (port == NULL) 3730 return (UINT32_MAX); 3731 if (port->lun_map == NULL) 3732 return (lun_id); 3733 for (i = 0; i < CTL_MAX_LUNS; i++) { 3734 if (port->lun_map[i] == lun_id) 3735 return (i); 3736 } 3737 return (UINT32_MAX); 3738} 3739 3740static struct ctl_port * 3741ctl_io_port(struct ctl_io_hdr *io_hdr) 3742{ 3743 int port_num; 3744 3745 port_num = io_hdr->nexus.targ_port; 3746 return (control_softc->ctl_ports[ctl_port_idx(port_num)]); 3747} 3748 3749/* 3750 * Note: This only works for bitmask sizes that are at least 32 bits, and 3751 * that are a power of 2. 3752 */ 3753int 3754ctl_ffz(uint32_t *mask, uint32_t size) 3755{ 3756 uint32_t num_chunks, num_pieces; 3757 int i, j; 3758 3759 num_chunks = (size >> 5); 3760 if (num_chunks == 0) 3761 num_chunks++; 3762 num_pieces = MIN((sizeof(uint32_t) * 8), size); 3763 3764 for (i = 0; i < num_chunks; i++) { 3765 for (j = 0; j < num_pieces; j++) { 3766 if ((mask[i] & (1 << j)) == 0) 3767 return ((i << 5) + j); 3768 } 3769 } 3770 3771 return (-1); 3772} 3773 3774int 3775ctl_set_mask(uint32_t *mask, uint32_t bit) 3776{ 3777 uint32_t chunk, piece; 3778 3779 chunk = bit >> 5; 3780 piece = bit % (sizeof(uint32_t) * 8); 3781 3782 if ((mask[chunk] & (1 << piece)) != 0) 3783 return (-1); 3784 else 3785 mask[chunk] |= (1 << piece); 3786 3787 return (0); 3788} 3789 3790int 3791ctl_clear_mask(uint32_t *mask, uint32_t bit) 3792{ 3793 uint32_t chunk, piece; 3794 3795 chunk = bit >> 5; 3796 piece = bit % (sizeof(uint32_t) * 8); 3797 3798 if ((mask[chunk] & (1 << piece)) == 0) 3799 return (-1); 3800 else 3801 mask[chunk] &= ~(1 << piece); 3802 3803 return (0); 3804} 3805 3806int 3807ctl_is_set(uint32_t *mask, uint32_t bit) 3808{ 3809 uint32_t chunk, piece; 3810 3811 chunk = bit >> 5; 3812 piece = bit % (sizeof(uint32_t) * 8); 3813 3814 if ((mask[chunk] & (1 << piece)) == 0) 3815 return (0); 3816 else 3817 return (1); 3818} 3819 3820static uint64_t 3821ctl_get_prkey(struct ctl_lun *lun, uint32_t residx) 3822{ 3823 uint64_t *t; 3824 3825 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3826 if (t == NULL) 3827 return (0); 3828 return (t[residx % CTL_MAX_INIT_PER_PORT]); 3829} 3830 3831static void 3832ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx) 3833{ 3834 uint64_t *t; 3835 3836 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3837 if (t == NULL) 3838 return; 3839 t[residx % CTL_MAX_INIT_PER_PORT] = 0; 3840} 3841 3842static void 3843ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx) 3844{ 3845 uint64_t *p; 3846 u_int i; 3847 3848 i = residx/CTL_MAX_INIT_PER_PORT; 3849 if (lun->pr_keys[i] != NULL) 3850 return; 3851 mtx_unlock(&lun->lun_lock); 3852 p = malloc(sizeof(uint64_t) * CTL_MAX_INIT_PER_PORT, M_CTL, 3853 M_WAITOK | M_ZERO); 3854 mtx_lock(&lun->lun_lock); 3855 if (lun->pr_keys[i] == NULL) 3856 lun->pr_keys[i] = p; 3857 else 3858 free(p, M_CTL); 3859} 3860 3861static void 3862ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key) 3863{ 3864 uint64_t *t; 3865 3866 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3867 KASSERT(t != NULL, ("prkey %d is not allocated", residx)); 3868 t[residx % CTL_MAX_INIT_PER_PORT] = key; 3869} 3870 3871/* 3872 * ctl_softc, pool_name, total_ctl_io are passed in. 3873 * npool is passed out. 3874 */ 3875int 3876ctl_pool_create(struct ctl_softc *ctl_softc, const char *pool_name, 3877 uint32_t total_ctl_io, void **npool) 3878{ 3879#ifdef IO_POOLS 3880 struct ctl_io_pool *pool; 3881 3882 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3883 M_NOWAIT | M_ZERO); 3884 if (pool == NULL) 3885 return (ENOMEM); 3886 3887 snprintf(pool->name, sizeof(pool->name), "CTL IO %s", pool_name); 3888 pool->ctl_softc = ctl_softc; 3889 pool->zone = uma_zsecond_create(pool->name, NULL, 3890 NULL, NULL, NULL, ctl_softc->io_zone); 3891 /* uma_prealloc(pool->zone, total_ctl_io); */ 3892 3893 *npool = pool; 3894#else 3895 *npool = ctl_softc->io_zone; 3896#endif 3897 return (0); 3898} 3899 3900void 3901ctl_pool_free(struct ctl_io_pool *pool) 3902{ 3903 3904 if (pool == NULL) 3905 return; 3906 3907#ifdef IO_POOLS 3908 uma_zdestroy(pool->zone); 3909 free(pool, M_CTL); 3910#endif 3911} 3912 3913union ctl_io * 3914ctl_alloc_io(void *pool_ref) 3915{ 3916 union ctl_io *io; 3917#ifdef IO_POOLS 3918 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3919 3920 io = uma_zalloc(pool->zone, M_WAITOK); 3921#else 3922 io = uma_zalloc((uma_zone_t)pool_ref, M_WAITOK); 3923#endif 3924 if (io != NULL) 3925 io->io_hdr.pool = pool_ref; 3926 return (io); 3927} 3928 3929union ctl_io * 3930ctl_alloc_io_nowait(void *pool_ref) 3931{ 3932 union ctl_io *io; 3933#ifdef IO_POOLS 3934 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3935 3936 io = uma_zalloc(pool->zone, M_NOWAIT); 3937#else 3938 io = uma_zalloc((uma_zone_t)pool_ref, M_NOWAIT); 3939#endif 3940 if (io != NULL) 3941 io->io_hdr.pool = pool_ref; 3942 return (io); 3943} 3944 3945void 3946ctl_free_io(union ctl_io *io) 3947{ 3948#ifdef IO_POOLS 3949 struct ctl_io_pool *pool; 3950#endif 3951 3952 if (io == NULL) 3953 return; 3954 3955#ifdef IO_POOLS 3956 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3957 uma_zfree(pool->zone, io); 3958#else 3959 uma_zfree((uma_zone_t)io->io_hdr.pool, io); 3960#endif 3961} 3962 3963void 3964ctl_zero_io(union ctl_io *io) 3965{ 3966 void *pool_ref; 3967 3968 if (io == NULL) 3969 return; 3970 3971 /* 3972 * May need to preserve linked list pointers at some point too. 3973 */ 3974 pool_ref = io->io_hdr.pool; 3975 memset(io, 0, sizeof(*io)); 3976 io->io_hdr.pool = pool_ref; 3977} 3978 3979/* 3980 * This routine is currently used for internal copies of ctl_ios that need 3981 * to persist for some reason after we've already returned status to the 3982 * FETD. (Thus the flag set.) 3983 * 3984 * XXX XXX 3985 * Note that this makes a blind copy of all fields in the ctl_io, except 3986 * for the pool reference. This includes any memory that has been 3987 * allocated! That memory will no longer be valid after done has been 3988 * called, so this would be VERY DANGEROUS for command that actually does 3989 * any reads or writes. Right now (11/7/2005), this is only used for immediate 3990 * start and stop commands, which don't transfer any data, so this is not a 3991 * problem. If it is used for anything else, the caller would also need to 3992 * allocate data buffer space and this routine would need to be modified to 3993 * copy the data buffer(s) as well. 3994 */ 3995void 3996ctl_copy_io(union ctl_io *src, union ctl_io *dest) 3997{ 3998 void *pool_ref; 3999 4000 if ((src == NULL) 4001 || (dest == NULL)) 4002 return; 4003 4004 /* 4005 * May need to preserve linked list pointers at some point too. 4006 */ 4007 pool_ref = dest->io_hdr.pool; 4008 4009 memcpy(dest, src, MIN(sizeof(*src), sizeof(*dest))); 4010 4011 dest->io_hdr.pool = pool_ref; 4012 /* 4013 * We need to know that this is an internal copy, and doesn't need 4014 * to get passed back to the FETD that allocated it. 4015 */ 4016 dest->io_hdr.flags |= CTL_FLAG_INT_COPY; 4017} 4018 4019int 4020ctl_expand_number(const char *buf, uint64_t *num) 4021{ 4022 char *endptr; 4023 uint64_t number; 4024 unsigned shift; 4025 4026 number = strtoq(buf, &endptr, 0); 4027 4028 switch (tolower((unsigned char)*endptr)) { 4029 case 'e': 4030 shift = 60; 4031 break; 4032 case 'p': 4033 shift = 50; 4034 break; 4035 case 't': 4036 shift = 40; 4037 break; 4038 case 'g': 4039 shift = 30; 4040 break; 4041 case 'm': 4042 shift = 20; 4043 break; 4044 case 'k': 4045 shift = 10; 4046 break; 4047 case 'b': 4048 case '\0': /* No unit. */ 4049 *num = number; 4050 return (0); 4051 default: 4052 /* Unrecognized unit. */ 4053 return (-1); 4054 } 4055 4056 if ((number << shift) >> shift != number) { 4057 /* Overflow */ 4058 return (-1); 4059 } 4060 *num = number << shift; 4061 return (0); 4062} 4063 4064 4065/* 4066 * This routine could be used in the future to load default and/or saved 4067 * mode page parameters for a particuar lun. 4068 */ 4069static int 4070ctl_init_page_index(struct ctl_lun *lun) 4071{ 4072 int i; 4073 struct ctl_page_index *page_index; 4074 const char *value; 4075 uint64_t ival; 4076 4077 memcpy(&lun->mode_pages.index, page_index_template, 4078 sizeof(page_index_template)); 4079 4080 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 4081 4082 page_index = &lun->mode_pages.index[i]; 4083 /* 4084 * If this is a disk-only mode page, there's no point in 4085 * setting it up. For some pages, we have to have some 4086 * basic information about the disk in order to calculate the 4087 * mode page data. 4088 */ 4089 if ((lun->be_lun->lun_type != T_DIRECT) 4090 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 4091 continue; 4092 4093 switch (page_index->page_code & SMPH_PC_MASK) { 4094 case SMS_RW_ERROR_RECOVERY_PAGE: { 4095 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4096 panic("subpage is incorrect!"); 4097 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT], 4098 &rw_er_page_default, 4099 sizeof(rw_er_page_default)); 4100 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CHANGEABLE], 4101 &rw_er_page_changeable, 4102 sizeof(rw_er_page_changeable)); 4103 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_DEFAULT], 4104 &rw_er_page_default, 4105 sizeof(rw_er_page_default)); 4106 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_SAVED], 4107 &rw_er_page_default, 4108 sizeof(rw_er_page_default)); 4109 page_index->page_data = 4110 (uint8_t *)lun->mode_pages.rw_er_page; 4111 break; 4112 } 4113 case SMS_FORMAT_DEVICE_PAGE: { 4114 struct scsi_format_page *format_page; 4115 4116 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4117 panic("subpage is incorrect!"); 4118 4119 /* 4120 * Sectors per track are set above. Bytes per 4121 * sector need to be set here on a per-LUN basis. 4122 */ 4123 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 4124 &format_page_default, 4125 sizeof(format_page_default)); 4126 memcpy(&lun->mode_pages.format_page[ 4127 CTL_PAGE_CHANGEABLE], &format_page_changeable, 4128 sizeof(format_page_changeable)); 4129 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 4130 &format_page_default, 4131 sizeof(format_page_default)); 4132 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 4133 &format_page_default, 4134 sizeof(format_page_default)); 4135 4136 format_page = &lun->mode_pages.format_page[ 4137 CTL_PAGE_CURRENT]; 4138 scsi_ulto2b(lun->be_lun->blocksize, 4139 format_page->bytes_per_sector); 4140 4141 format_page = &lun->mode_pages.format_page[ 4142 CTL_PAGE_DEFAULT]; 4143 scsi_ulto2b(lun->be_lun->blocksize, 4144 format_page->bytes_per_sector); 4145 4146 format_page = &lun->mode_pages.format_page[ 4147 CTL_PAGE_SAVED]; 4148 scsi_ulto2b(lun->be_lun->blocksize, 4149 format_page->bytes_per_sector); 4150 4151 page_index->page_data = 4152 (uint8_t *)lun->mode_pages.format_page; 4153 break; 4154 } 4155 case SMS_RIGID_DISK_PAGE: { 4156 struct scsi_rigid_disk_page *rigid_disk_page; 4157 uint32_t sectors_per_cylinder; 4158 uint64_t cylinders; 4159#ifndef __XSCALE__ 4160 int shift; 4161#endif /* !__XSCALE__ */ 4162 4163 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4164 panic("invalid subpage value %d", 4165 page_index->subpage); 4166 4167 /* 4168 * Rotation rate and sectors per track are set 4169 * above. We calculate the cylinders here based on 4170 * capacity. Due to the number of heads and 4171 * sectors per track we're using, smaller arrays 4172 * may turn out to have 0 cylinders. Linux and 4173 * FreeBSD don't pay attention to these mode pages 4174 * to figure out capacity, but Solaris does. It 4175 * seems to deal with 0 cylinders just fine, and 4176 * works out a fake geometry based on the capacity. 4177 */ 4178 memcpy(&lun->mode_pages.rigid_disk_page[ 4179 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 4180 sizeof(rigid_disk_page_default)); 4181 memcpy(&lun->mode_pages.rigid_disk_page[ 4182 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4183 sizeof(rigid_disk_page_changeable)); 4184 4185 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4186 CTL_DEFAULT_HEADS; 4187 4188 /* 4189 * The divide method here will be more accurate, 4190 * probably, but results in floating point being 4191 * used in the kernel on i386 (__udivdi3()). On the 4192 * XScale, though, __udivdi3() is implemented in 4193 * software. 4194 * 4195 * The shift method for cylinder calculation is 4196 * accurate if sectors_per_cylinder is a power of 4197 * 2. Otherwise it might be slightly off -- you 4198 * might have a bit of a truncation problem. 4199 */ 4200#ifdef __XSCALE__ 4201 cylinders = (lun->be_lun->maxlba + 1) / 4202 sectors_per_cylinder; 4203#else 4204 for (shift = 31; shift > 0; shift--) { 4205 if (sectors_per_cylinder & (1 << shift)) 4206 break; 4207 } 4208 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4209#endif 4210 4211 /* 4212 * We've basically got 3 bytes, or 24 bits for the 4213 * cylinder size in the mode page. If we're over, 4214 * just round down to 2^24. 4215 */ 4216 if (cylinders > 0xffffff) 4217 cylinders = 0xffffff; 4218 4219 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4220 CTL_PAGE_DEFAULT]; 4221 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4222 4223 if ((value = ctl_get_opt(&lun->be_lun->options, 4224 "rpm")) != NULL) { 4225 scsi_ulto2b(strtol(value, NULL, 0), 4226 rigid_disk_page->rotation_rate); 4227 } 4228 4229 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_CURRENT], 4230 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4231 sizeof(rigid_disk_page_default)); 4232 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_SAVED], 4233 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4234 sizeof(rigid_disk_page_default)); 4235 4236 page_index->page_data = 4237 (uint8_t *)lun->mode_pages.rigid_disk_page; 4238 break; 4239 } 4240 case SMS_CACHING_PAGE: { 4241 struct scsi_caching_page *caching_page; 4242 4243 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4244 panic("invalid subpage value %d", 4245 page_index->subpage); 4246 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4247 &caching_page_default, 4248 sizeof(caching_page_default)); 4249 memcpy(&lun->mode_pages.caching_page[ 4250 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4251 sizeof(caching_page_changeable)); 4252 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4253 &caching_page_default, 4254 sizeof(caching_page_default)); 4255 caching_page = &lun->mode_pages.caching_page[ 4256 CTL_PAGE_SAVED]; 4257 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4258 if (value != NULL && strcmp(value, "off") == 0) 4259 caching_page->flags1 &= ~SCP_WCE; 4260 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4261 if (value != NULL && strcmp(value, "off") == 0) 4262 caching_page->flags1 |= SCP_RCD; 4263 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4264 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4265 sizeof(caching_page_default)); 4266 page_index->page_data = 4267 (uint8_t *)lun->mode_pages.caching_page; 4268 break; 4269 } 4270 case SMS_CONTROL_MODE_PAGE: { 4271 struct scsi_control_page *control_page; 4272 4273 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4274 panic("invalid subpage value %d", 4275 page_index->subpage); 4276 4277 memcpy(&lun->mode_pages.control_page[CTL_PAGE_DEFAULT], 4278 &control_page_default, 4279 sizeof(control_page_default)); 4280 memcpy(&lun->mode_pages.control_page[ 4281 CTL_PAGE_CHANGEABLE], &control_page_changeable, 4282 sizeof(control_page_changeable)); 4283 memcpy(&lun->mode_pages.control_page[CTL_PAGE_SAVED], 4284 &control_page_default, 4285 sizeof(control_page_default)); 4286 control_page = &lun->mode_pages.control_page[ 4287 CTL_PAGE_SAVED]; 4288 value = ctl_get_opt(&lun->be_lun->options, "reordering"); 4289 if (value != NULL && strcmp(value, "unrestricted") == 0) { 4290 control_page->queue_flags &= ~SCP_QUEUE_ALG_MASK; 4291 control_page->queue_flags |= SCP_QUEUE_ALG_UNRESTRICTED; 4292 } 4293 memcpy(&lun->mode_pages.control_page[CTL_PAGE_CURRENT], 4294 &lun->mode_pages.control_page[CTL_PAGE_SAVED], 4295 sizeof(control_page_default)); 4296 page_index->page_data = 4297 (uint8_t *)lun->mode_pages.control_page; 4298 break; 4299 4300 } 4301 case SMS_INFO_EXCEPTIONS_PAGE: { 4302 switch (page_index->subpage) { 4303 case SMS_SUBPAGE_PAGE_0: 4304 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_CURRENT], 4305 &ie_page_default, 4306 sizeof(ie_page_default)); 4307 memcpy(&lun->mode_pages.ie_page[ 4308 CTL_PAGE_CHANGEABLE], &ie_page_changeable, 4309 sizeof(ie_page_changeable)); 4310 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_DEFAULT], 4311 &ie_page_default, 4312 sizeof(ie_page_default)); 4313 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_SAVED], 4314 &ie_page_default, 4315 sizeof(ie_page_default)); 4316 page_index->page_data = 4317 (uint8_t *)lun->mode_pages.ie_page; 4318 break; 4319 case 0x02: { 4320 struct ctl_logical_block_provisioning_page *page; 4321 4322 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_DEFAULT], 4323 &lbp_page_default, 4324 sizeof(lbp_page_default)); 4325 memcpy(&lun->mode_pages.lbp_page[ 4326 CTL_PAGE_CHANGEABLE], &lbp_page_changeable, 4327 sizeof(lbp_page_changeable)); 4328 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4329 &lbp_page_default, 4330 sizeof(lbp_page_default)); 4331 page = &lun->mode_pages.lbp_page[CTL_PAGE_SAVED]; 4332 value = ctl_get_opt(&lun->be_lun->options, 4333 "avail-threshold"); 4334 if (value != NULL && 4335 ctl_expand_number(value, &ival) == 0) { 4336 page->descr[0].flags |= SLBPPD_ENABLED | 4337 SLBPPD_ARMING_DEC; 4338 if (lun->be_lun->blocksize) 4339 ival /= lun->be_lun->blocksize; 4340 else 4341 ival /= 512; 4342 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4343 page->descr[0].count); 4344 } 4345 value = ctl_get_opt(&lun->be_lun->options, 4346 "used-threshold"); 4347 if (value != NULL && 4348 ctl_expand_number(value, &ival) == 0) { 4349 page->descr[1].flags |= SLBPPD_ENABLED | 4350 SLBPPD_ARMING_INC; 4351 if (lun->be_lun->blocksize) 4352 ival /= lun->be_lun->blocksize; 4353 else 4354 ival /= 512; 4355 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4356 page->descr[1].count); 4357 } 4358 value = ctl_get_opt(&lun->be_lun->options, 4359 "pool-avail-threshold"); 4360 if (value != NULL && 4361 ctl_expand_number(value, &ival) == 0) { 4362 page->descr[2].flags |= SLBPPD_ENABLED | 4363 SLBPPD_ARMING_DEC; 4364 if (lun->be_lun->blocksize) 4365 ival /= lun->be_lun->blocksize; 4366 else 4367 ival /= 512; 4368 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4369 page->descr[2].count); 4370 } 4371 value = ctl_get_opt(&lun->be_lun->options, 4372 "pool-used-threshold"); 4373 if (value != NULL && 4374 ctl_expand_number(value, &ival) == 0) { 4375 page->descr[3].flags |= SLBPPD_ENABLED | 4376 SLBPPD_ARMING_INC; 4377 if (lun->be_lun->blocksize) 4378 ival /= lun->be_lun->blocksize; 4379 else 4380 ival /= 512; 4381 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4382 page->descr[3].count); 4383 } 4384 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_CURRENT], 4385 &lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4386 sizeof(lbp_page_default)); 4387 page_index->page_data = 4388 (uint8_t *)lun->mode_pages.lbp_page; 4389 }} 4390 break; 4391 } 4392 case SMS_VENDOR_SPECIFIC_PAGE:{ 4393 switch (page_index->subpage) { 4394 case DBGCNF_SUBPAGE_CODE: { 4395 struct copan_debugconf_subpage *current_page, 4396 *saved_page; 4397 4398 memcpy(&lun->mode_pages.debugconf_subpage[ 4399 CTL_PAGE_CURRENT], 4400 &debugconf_page_default, 4401 sizeof(debugconf_page_default)); 4402 memcpy(&lun->mode_pages.debugconf_subpage[ 4403 CTL_PAGE_CHANGEABLE], 4404 &debugconf_page_changeable, 4405 sizeof(debugconf_page_changeable)); 4406 memcpy(&lun->mode_pages.debugconf_subpage[ 4407 CTL_PAGE_DEFAULT], 4408 &debugconf_page_default, 4409 sizeof(debugconf_page_default)); 4410 memcpy(&lun->mode_pages.debugconf_subpage[ 4411 CTL_PAGE_SAVED], 4412 &debugconf_page_default, 4413 sizeof(debugconf_page_default)); 4414 page_index->page_data = 4415 (uint8_t *)lun->mode_pages.debugconf_subpage; 4416 4417 current_page = (struct copan_debugconf_subpage *) 4418 (page_index->page_data + 4419 (page_index->page_len * 4420 CTL_PAGE_CURRENT)); 4421 saved_page = (struct copan_debugconf_subpage *) 4422 (page_index->page_data + 4423 (page_index->page_len * 4424 CTL_PAGE_SAVED)); 4425 break; 4426 } 4427 default: 4428 panic("invalid subpage value %d", 4429 page_index->subpage); 4430 break; 4431 } 4432 break; 4433 } 4434 default: 4435 panic("invalid page value %d", 4436 page_index->page_code & SMPH_PC_MASK); 4437 break; 4438 } 4439 } 4440 4441 return (CTL_RETVAL_COMPLETE); 4442} 4443 4444static int 4445ctl_init_log_page_index(struct ctl_lun *lun) 4446{ 4447 struct ctl_page_index *page_index; 4448 int i, j, k, prev; 4449 4450 memcpy(&lun->log_pages.index, log_page_index_template, 4451 sizeof(log_page_index_template)); 4452 4453 prev = -1; 4454 for (i = 0, j = 0, k = 0; i < CTL_NUM_LOG_PAGES; i++) { 4455 4456 page_index = &lun->log_pages.index[i]; 4457 /* 4458 * If this is a disk-only mode page, there's no point in 4459 * setting it up. For some pages, we have to have some 4460 * basic information about the disk in order to calculate the 4461 * mode page data. 4462 */ 4463 if ((lun->be_lun->lun_type != T_DIRECT) 4464 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 4465 continue; 4466 4467 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING && 4468 lun->backend->lun_attr == NULL) 4469 continue; 4470 4471 if (page_index->page_code != prev) { 4472 lun->log_pages.pages_page[j] = page_index->page_code; 4473 prev = page_index->page_code; 4474 j++; 4475 } 4476 lun->log_pages.subpages_page[k*2] = page_index->page_code; 4477 lun->log_pages.subpages_page[k*2+1] = page_index->subpage; 4478 k++; 4479 } 4480 lun->log_pages.index[0].page_data = &lun->log_pages.pages_page[0]; 4481 lun->log_pages.index[0].page_len = j; 4482 lun->log_pages.index[1].page_data = &lun->log_pages.subpages_page[0]; 4483 lun->log_pages.index[1].page_len = k * 2; 4484 lun->log_pages.index[2].page_data = &lun->log_pages.lbp_page[0]; 4485 lun->log_pages.index[2].page_len = 12*CTL_NUM_LBP_PARAMS; 4486 lun->log_pages.index[3].page_data = (uint8_t *)&lun->log_pages.stat_page; 4487 lun->log_pages.index[3].page_len = sizeof(lun->log_pages.stat_page); 4488 4489 return (CTL_RETVAL_COMPLETE); 4490} 4491 4492static int 4493hex2bin(const char *str, uint8_t *buf, int buf_size) 4494{ 4495 int i; 4496 u_char c; 4497 4498 memset(buf, 0, buf_size); 4499 while (isspace(str[0])) 4500 str++; 4501 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) 4502 str += 2; 4503 buf_size *= 2; 4504 for (i = 0; str[i] != 0 && i < buf_size; i++) { 4505 c = str[i]; 4506 if (isdigit(c)) 4507 c -= '0'; 4508 else if (isalpha(c)) 4509 c -= isupper(c) ? 'A' - 10 : 'a' - 10; 4510 else 4511 break; 4512 if (c >= 16) 4513 break; 4514 if ((i & 1) == 0) 4515 buf[i / 2] |= (c << 4); 4516 else 4517 buf[i / 2] |= c; 4518 } 4519 return ((i + 1) / 2); 4520} 4521 4522/* 4523 * LUN allocation. 4524 * 4525 * Requirements: 4526 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4527 * wants us to allocate the LUN and he can block. 4528 * - ctl_softc is always set 4529 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4530 * 4531 * Returns 0 for success, non-zero (errno) for failure. 4532 */ 4533static int 4534ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4535 struct ctl_be_lun *const be_lun, struct ctl_id target_id) 4536{ 4537 struct ctl_lun *nlun, *lun; 4538 struct scsi_vpd_id_descriptor *desc; 4539 struct scsi_vpd_id_t10 *t10id; 4540 const char *eui, *naa, *scsiname, *vendor, *value; 4541 int lun_number, i, lun_malloced; 4542 int devidlen, idlen1, idlen2 = 0, len; 4543 4544 if (be_lun == NULL) 4545 return (EINVAL); 4546 4547 /* 4548 * We currently only support Direct Access or Processor LUN types. 4549 */ 4550 switch (be_lun->lun_type) { 4551 case T_DIRECT: 4552 break; 4553 case T_PROCESSOR: 4554 break; 4555 case T_SEQUENTIAL: 4556 case T_CHANGER: 4557 default: 4558 be_lun->lun_config_status(be_lun->be_lun, 4559 CTL_LUN_CONFIG_FAILURE); 4560 break; 4561 } 4562 if (ctl_lun == NULL) { 4563 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4564 lun_malloced = 1; 4565 } else { 4566 lun_malloced = 0; 4567 lun = ctl_lun; 4568 } 4569 4570 memset(lun, 0, sizeof(*lun)); 4571 if (lun_malloced) 4572 lun->flags = CTL_LUN_MALLOCED; 4573 4574 /* Generate LUN ID. */ 4575 devidlen = max(CTL_DEVID_MIN_LEN, 4576 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4577 idlen1 = sizeof(*t10id) + devidlen; 4578 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4579 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4580 if (scsiname != NULL) { 4581 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4582 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4583 } 4584 eui = ctl_get_opt(&be_lun->options, "eui"); 4585 if (eui != NULL) { 4586 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4587 } 4588 naa = ctl_get_opt(&be_lun->options, "naa"); 4589 if (naa != NULL) { 4590 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4591 } 4592 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4593 M_CTL, M_WAITOK | M_ZERO); 4594 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4595 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4596 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4597 desc->length = idlen1; 4598 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4599 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4600 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4601 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4602 } else { 4603 strncpy(t10id->vendor, vendor, 4604 min(sizeof(t10id->vendor), strlen(vendor))); 4605 } 4606 strncpy((char *)t10id->vendor_spec_id, 4607 (char *)be_lun->device_id, devidlen); 4608 if (scsiname != NULL) { 4609 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4610 desc->length); 4611 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4612 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4613 SVPD_ID_TYPE_SCSI_NAME; 4614 desc->length = idlen2; 4615 strlcpy(desc->identifier, scsiname, idlen2); 4616 } 4617 if (eui != NULL) { 4618 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4619 desc->length); 4620 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4621 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4622 SVPD_ID_TYPE_EUI64; 4623 desc->length = hex2bin(eui, desc->identifier, 16); 4624 desc->length = desc->length > 12 ? 16 : 4625 (desc->length > 8 ? 12 : 8); 4626 len -= 16 - desc->length; 4627 } 4628 if (naa != NULL) { 4629 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4630 desc->length); 4631 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4632 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4633 SVPD_ID_TYPE_NAA; 4634 desc->length = hex2bin(naa, desc->identifier, 16); 4635 desc->length = desc->length > 8 ? 16 : 8; 4636 len -= 16 - desc->length; 4637 } 4638 lun->lun_devid->len = len; 4639 4640 mtx_lock(&ctl_softc->ctl_lock); 4641 /* 4642 * See if the caller requested a particular LUN number. If so, see 4643 * if it is available. Otherwise, allocate the first available LUN. 4644 */ 4645 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4646 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4647 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4648 mtx_unlock(&ctl_softc->ctl_lock); 4649 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4650 printf("ctl: requested LUN ID %d is higher " 4651 "than CTL_MAX_LUNS - 1 (%d)\n", 4652 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4653 } else { 4654 /* 4655 * XXX KDM return an error, or just assign 4656 * another LUN ID in this case?? 4657 */ 4658 printf("ctl: requested LUN ID %d is already " 4659 "in use\n", be_lun->req_lun_id); 4660 } 4661 if (lun->flags & CTL_LUN_MALLOCED) 4662 free(lun, M_CTL); 4663 be_lun->lun_config_status(be_lun->be_lun, 4664 CTL_LUN_CONFIG_FAILURE); 4665 return (ENOSPC); 4666 } 4667 lun_number = be_lun->req_lun_id; 4668 } else { 4669 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, CTL_MAX_LUNS); 4670 if (lun_number == -1) { 4671 mtx_unlock(&ctl_softc->ctl_lock); 4672 printf("ctl: can't allocate LUN on target %ju, out of " 4673 "LUNs\n", (uintmax_t)target_id.id); 4674 if (lun->flags & CTL_LUN_MALLOCED) 4675 free(lun, M_CTL); 4676 be_lun->lun_config_status(be_lun->be_lun, 4677 CTL_LUN_CONFIG_FAILURE); 4678 return (ENOSPC); 4679 } 4680 } 4681 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4682 4683 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4684 lun->target = target_id; 4685 lun->lun = lun_number; 4686 lun->be_lun = be_lun; 4687 /* 4688 * The processor LUN is always enabled. Disk LUNs come on line 4689 * disabled, and must be enabled by the backend. 4690 */ 4691 lun->flags |= CTL_LUN_DISABLED; 4692 lun->backend = be_lun->be; 4693 be_lun->ctl_lun = lun; 4694 be_lun->lun_id = lun_number; 4695 atomic_add_int(&be_lun->be->num_luns, 1); 4696 if (be_lun->flags & CTL_LUN_FLAG_OFFLINE) 4697 lun->flags |= CTL_LUN_OFFLINE; 4698 4699 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4700 lun->flags |= CTL_LUN_STOPPED; 4701 4702 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4703 lun->flags |= CTL_LUN_INOPERABLE; 4704 4705 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4706 lun->flags |= CTL_LUN_PRIMARY_SC; 4707 4708 value = ctl_get_opt(&be_lun->options, "readonly"); 4709 if (value != NULL && strcmp(value, "on") == 0) 4710 lun->flags |= CTL_LUN_READONLY; 4711 4712 lun->serseq = CTL_LUN_SERSEQ_OFF; 4713 if (be_lun->flags & CTL_LUN_FLAG_SERSEQ_READ) 4714 lun->serseq = CTL_LUN_SERSEQ_READ; 4715 value = ctl_get_opt(&be_lun->options, "serseq"); 4716 if (value != NULL && strcmp(value, "on") == 0) 4717 lun->serseq = CTL_LUN_SERSEQ_ON; 4718 else if (value != NULL && strcmp(value, "read") == 0) 4719 lun->serseq = CTL_LUN_SERSEQ_READ; 4720 else if (value != NULL && strcmp(value, "off") == 0) 4721 lun->serseq = CTL_LUN_SERSEQ_OFF; 4722 4723 lun->ctl_softc = ctl_softc; 4724#ifdef CTL_TIME_IO 4725 lun->last_busy = getsbinuptime(); 4726#endif 4727 TAILQ_INIT(&lun->ooa_queue); 4728 TAILQ_INIT(&lun->blocked_queue); 4729 STAILQ_INIT(&lun->error_list); 4730 ctl_tpc_lun_init(lun); 4731 4732 /* 4733 * Initialize the mode and log page index. 4734 */ 4735 ctl_init_page_index(lun); 4736 ctl_init_log_page_index(lun); 4737 4738 /* 4739 * Now, before we insert this lun on the lun list, set the lun 4740 * inventory changed UA for all other luns. 4741 */ 4742 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4743 mtx_lock(&nlun->lun_lock); 4744 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4745 mtx_unlock(&nlun->lun_lock); 4746 } 4747 4748 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4749 4750 ctl_softc->ctl_luns[lun_number] = lun; 4751 4752 ctl_softc->num_luns++; 4753 4754 /* Setup statistics gathering */ 4755 lun->stats.device_type = be_lun->lun_type; 4756 lun->stats.lun_number = lun_number; 4757 if (lun->stats.device_type == T_DIRECT) 4758 lun->stats.blocksize = be_lun->blocksize; 4759 else 4760 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4761 for (i = 0;i < CTL_MAX_PORTS;i++) 4762 lun->stats.ports[i].targ_port = i; 4763 4764 mtx_unlock(&ctl_softc->ctl_lock); 4765 4766 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4767 return (0); 4768} 4769 4770/* 4771 * Delete a LUN. 4772 * Assumptions: 4773 * - LUN has already been marked invalid and any pending I/O has been taken 4774 * care of. 4775 */ 4776static int 4777ctl_free_lun(struct ctl_lun *lun) 4778{ 4779 struct ctl_softc *softc; 4780 struct ctl_port *port; 4781 struct ctl_lun *nlun; 4782 int i; 4783 4784 softc = lun->ctl_softc; 4785 4786 mtx_assert(&softc->ctl_lock, MA_OWNED); 4787 4788 STAILQ_FOREACH(port, &softc->port_list, links) 4789 ctl_lun_map_unsetg(port, lun->lun); 4790 4791 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4792 4793 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4794 4795 softc->ctl_luns[lun->lun] = NULL; 4796 4797 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4798 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4799 4800 softc->num_luns--; 4801 4802 /* 4803 * Tell the backend to free resources, if this LUN has a backend. 4804 */ 4805 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4806 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4807 4808 ctl_tpc_lun_shutdown(lun); 4809 mtx_destroy(&lun->lun_lock); 4810 free(lun->lun_devid, M_CTL); 4811 for (i = 0; i < CTL_MAX_PORTS; i++) 4812 free(lun->pending_ua[i], M_CTL); 4813 for (i = 0; i < 2 * CTL_MAX_PORTS; i++) 4814 free(lun->pr_keys[i], M_CTL); 4815 free(lun->write_buffer, M_CTL); 4816 if (lun->flags & CTL_LUN_MALLOCED) 4817 free(lun, M_CTL); 4818 4819 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4820 mtx_lock(&nlun->lun_lock); 4821 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4822 mtx_unlock(&nlun->lun_lock); 4823 } 4824 4825 return (0); 4826} 4827 4828static void 4829ctl_create_lun(struct ctl_be_lun *be_lun) 4830{ 4831 struct ctl_softc *softc; 4832 4833 softc = control_softc; 4834 4835 /* 4836 * ctl_alloc_lun() should handle all potential failure cases. 4837 */ 4838 ctl_alloc_lun(softc, NULL, be_lun, softc->target); 4839} 4840 4841int 4842ctl_add_lun(struct ctl_be_lun *be_lun) 4843{ 4844 struct ctl_softc *softc = control_softc; 4845 4846 mtx_lock(&softc->ctl_lock); 4847 STAILQ_INSERT_TAIL(&softc->pending_lun_queue, be_lun, links); 4848 mtx_unlock(&softc->ctl_lock); 4849 wakeup(&softc->pending_lun_queue); 4850 4851 return (0); 4852} 4853 4854int 4855ctl_enable_lun(struct ctl_be_lun *be_lun) 4856{ 4857 struct ctl_softc *softc; 4858 struct ctl_port *port, *nport; 4859 struct ctl_lun *lun; 4860 int retval; 4861 4862 lun = (struct ctl_lun *)be_lun->ctl_lun; 4863 softc = lun->ctl_softc; 4864 4865 mtx_lock(&softc->ctl_lock); 4866 mtx_lock(&lun->lun_lock); 4867 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4868 /* 4869 * eh? Why did we get called if the LUN is already 4870 * enabled? 4871 */ 4872 mtx_unlock(&lun->lun_lock); 4873 mtx_unlock(&softc->ctl_lock); 4874 return (0); 4875 } 4876 lun->flags &= ~CTL_LUN_DISABLED; 4877 mtx_unlock(&lun->lun_lock); 4878 4879 for (port = STAILQ_FIRST(&softc->port_list); port != NULL; port = nport) { 4880 nport = STAILQ_NEXT(port, links); 4881 4882 /* 4883 * Drop the lock while we call the FETD's enable routine. 4884 * This can lead to a callback into CTL (at least in the 4885 * case of the internal initiator frontend. 4886 */ 4887 mtx_unlock(&softc->ctl_lock); 4888 retval = port->lun_enable(port->targ_lun_arg, lun->target,lun->lun); 4889 mtx_lock(&softc->ctl_lock); 4890 if (retval != 0) { 4891 printf("%s: FETD %s port %d returned error " 4892 "%d for lun_enable on target %ju lun %jd\n", 4893 __func__, port->port_name, port->targ_port, retval, 4894 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4895 } 4896 } 4897 4898 mtx_unlock(&softc->ctl_lock); 4899 4900 return (0); 4901} 4902 4903int 4904ctl_disable_lun(struct ctl_be_lun *be_lun) 4905{ 4906 struct ctl_softc *softc; 4907 struct ctl_port *port; 4908 struct ctl_lun *lun; 4909 int retval; 4910 4911 lun = (struct ctl_lun *)be_lun->ctl_lun; 4912 softc = lun->ctl_softc; 4913 4914 mtx_lock(&softc->ctl_lock); 4915 mtx_lock(&lun->lun_lock); 4916 if (lun->flags & CTL_LUN_DISABLED) { 4917 mtx_unlock(&lun->lun_lock); 4918 mtx_unlock(&softc->ctl_lock); 4919 return (0); 4920 } 4921 lun->flags |= CTL_LUN_DISABLED; 4922 mtx_unlock(&lun->lun_lock); 4923 4924 STAILQ_FOREACH(port, &softc->port_list, links) { 4925 mtx_unlock(&softc->ctl_lock); 4926 /* 4927 * Drop the lock before we call the frontend's disable 4928 * routine, to avoid lock order reversals. 4929 * 4930 * XXX KDM what happens if the frontend list changes while 4931 * we're traversing it? It's unlikely, but should be handled. 4932 */ 4933 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4934 lun->lun); 4935 mtx_lock(&softc->ctl_lock); 4936 if (retval != 0) { 4937 printf("%s: FETD %s port %d returned error " 4938 "%d for lun_disable on target %ju lun %jd\n", 4939 __func__, port->port_name, port->targ_port, retval, 4940 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4941 } 4942 } 4943 4944 mtx_unlock(&softc->ctl_lock); 4945 4946 return (0); 4947} 4948 4949int 4950ctl_start_lun(struct ctl_be_lun *be_lun) 4951{ 4952 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4953 4954 mtx_lock(&lun->lun_lock); 4955 lun->flags &= ~CTL_LUN_STOPPED; 4956 mtx_unlock(&lun->lun_lock); 4957 return (0); 4958} 4959 4960int 4961ctl_stop_lun(struct ctl_be_lun *be_lun) 4962{ 4963 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4964 4965 mtx_lock(&lun->lun_lock); 4966 lun->flags |= CTL_LUN_STOPPED; 4967 mtx_unlock(&lun->lun_lock); 4968 return (0); 4969} 4970 4971int 4972ctl_lun_offline(struct ctl_be_lun *be_lun) 4973{ 4974 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4975 4976 mtx_lock(&lun->lun_lock); 4977 lun->flags |= CTL_LUN_OFFLINE; 4978 mtx_unlock(&lun->lun_lock); 4979 return (0); 4980} 4981 4982int 4983ctl_lun_online(struct ctl_be_lun *be_lun) 4984{ 4985 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4986 4987 mtx_lock(&lun->lun_lock); 4988 lun->flags &= ~CTL_LUN_OFFLINE; 4989 mtx_unlock(&lun->lun_lock); 4990 return (0); 4991} 4992 4993int 4994ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4995{ 4996 struct ctl_softc *softc; 4997 struct ctl_lun *lun; 4998 4999 lun = (struct ctl_lun *)be_lun->ctl_lun; 5000 softc = lun->ctl_softc; 5001 5002 mtx_lock(&lun->lun_lock); 5003 5004 /* 5005 * The LUN needs to be disabled before it can be marked invalid. 5006 */ 5007 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 5008 mtx_unlock(&lun->lun_lock); 5009 return (-1); 5010 } 5011 /* 5012 * Mark the LUN invalid. 5013 */ 5014 lun->flags |= CTL_LUN_INVALID; 5015 5016 /* 5017 * If there is nothing in the OOA queue, go ahead and free the LUN. 5018 * If we have something in the OOA queue, we'll free it when the 5019 * last I/O completes. 5020 */ 5021 if (TAILQ_EMPTY(&lun->ooa_queue)) { 5022 mtx_unlock(&lun->lun_lock); 5023 mtx_lock(&softc->ctl_lock); 5024 ctl_free_lun(lun); 5025 mtx_unlock(&softc->ctl_lock); 5026 } else 5027 mtx_unlock(&lun->lun_lock); 5028 5029 return (0); 5030} 5031 5032int 5033ctl_lun_inoperable(struct ctl_be_lun *be_lun) 5034{ 5035 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 5036 5037 mtx_lock(&lun->lun_lock); 5038 lun->flags |= CTL_LUN_INOPERABLE; 5039 mtx_unlock(&lun->lun_lock); 5040 return (0); 5041} 5042 5043int 5044ctl_lun_operable(struct ctl_be_lun *be_lun) 5045{ 5046 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 5047 5048 mtx_lock(&lun->lun_lock); 5049 lun->flags &= ~CTL_LUN_INOPERABLE; 5050 mtx_unlock(&lun->lun_lock); 5051 return (0); 5052} 5053 5054void 5055ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 5056{ 5057 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 5058 5059 mtx_lock(&lun->lun_lock); 5060 ctl_est_ua_all(lun, -1, CTL_UA_CAPACITY_CHANGED); 5061 mtx_unlock(&lun->lun_lock); 5062} 5063 5064/* 5065 * Backend "memory move is complete" callback for requests that never 5066 * make it down to say RAIDCore's configuration code. 5067 */ 5068int 5069ctl_config_move_done(union ctl_io *io) 5070{ 5071 int retval; 5072 5073 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 5074 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI, 5075 ("Config I/O type isn't CTL_IO_SCSI (%d)!", io->io_hdr.io_type)); 5076 5077 if ((io->io_hdr.port_status != 0) && 5078 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5079 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5080 /* 5081 * For hardware error sense keys, the sense key 5082 * specific value is defined to be a retry count, 5083 * but we use it to pass back an internal FETD 5084 * error code. XXX KDM Hopefully the FETD is only 5085 * using 16 bits for an error code, since that's 5086 * all the space we have in the sks field. 5087 */ 5088 ctl_set_internal_failure(&io->scsiio, 5089 /*sks_valid*/ 1, 5090 /*retry_count*/ 5091 io->io_hdr.port_status); 5092 } 5093 5094 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) || 5095 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5096 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) || 5097 ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5098 /* 5099 * XXX KDM just assuming a single pointer here, and not a 5100 * S/G list. If we start using S/G lists for config data, 5101 * we'll need to know how to clean them up here as well. 5102 */ 5103 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5104 free(io->scsiio.kern_data_ptr, M_CTL); 5105 ctl_done(io); 5106 retval = CTL_RETVAL_COMPLETE; 5107 } else { 5108 /* 5109 * XXX KDM now we need to continue data movement. Some 5110 * options: 5111 * - call ctl_scsiio() again? We don't do this for data 5112 * writes, because for those at least we know ahead of 5113 * time where the write will go and how long it is. For 5114 * config writes, though, that information is largely 5115 * contained within the write itself, thus we need to 5116 * parse out the data again. 5117 * 5118 * - Call some other function once the data is in? 5119 */ 5120 if (ctl_debug & CTL_DEBUG_CDB_DATA) 5121 ctl_data_print(io); 5122 5123 /* 5124 * XXX KDM call ctl_scsiio() again for now, and check flag 5125 * bits to see whether we're allocated or not. 5126 */ 5127 retval = ctl_scsiio(&io->scsiio); 5128 } 5129 return (retval); 5130} 5131 5132/* 5133 * This gets called by a backend driver when it is done with a 5134 * data_submit method. 5135 */ 5136void 5137ctl_data_submit_done(union ctl_io *io) 5138{ 5139 /* 5140 * If the IO_CONT flag is set, we need to call the supplied 5141 * function to continue processing the I/O, instead of completing 5142 * the I/O just yet. 5143 * 5144 * If there is an error, though, we don't want to keep processing. 5145 * Instead, just send status back to the initiator. 5146 */ 5147 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5148 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5149 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5150 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5151 io->scsiio.io_cont(io); 5152 return; 5153 } 5154 ctl_done(io); 5155} 5156 5157/* 5158 * This gets called by a backend driver when it is done with a 5159 * configuration write. 5160 */ 5161void 5162ctl_config_write_done(union ctl_io *io) 5163{ 5164 uint8_t *buf; 5165 5166 /* 5167 * If the IO_CONT flag is set, we need to call the supplied 5168 * function to continue processing the I/O, instead of completing 5169 * the I/O just yet. 5170 * 5171 * If there is an error, though, we don't want to keep processing. 5172 * Instead, just send status back to the initiator. 5173 */ 5174 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5175 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5176 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5177 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5178 io->scsiio.io_cont(io); 5179 return; 5180 } 5181 /* 5182 * Since a configuration write can be done for commands that actually 5183 * have data allocated, like write buffer, and commands that have 5184 * no data, like start/stop unit, we need to check here. 5185 */ 5186 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5187 buf = io->scsiio.kern_data_ptr; 5188 else 5189 buf = NULL; 5190 ctl_done(io); 5191 if (buf) 5192 free(buf, M_CTL); 5193} 5194 5195void 5196ctl_config_read_done(union ctl_io *io) 5197{ 5198 uint8_t *buf; 5199 5200 /* 5201 * If there is some error -- we are done, skip data transfer. 5202 */ 5203 if ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0 || 5204 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5205 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) { 5206 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5207 buf = io->scsiio.kern_data_ptr; 5208 else 5209 buf = NULL; 5210 ctl_done(io); 5211 if (buf) 5212 free(buf, M_CTL); 5213 return; 5214 } 5215 5216 /* 5217 * If the IO_CONT flag is set, we need to call the supplied 5218 * function to continue processing the I/O, instead of completing 5219 * the I/O just yet. 5220 */ 5221 if (io->io_hdr.flags & CTL_FLAG_IO_CONT) { 5222 io->scsiio.io_cont(io); 5223 return; 5224 } 5225 5226 ctl_datamove(io); 5227} 5228 5229/* 5230 * SCSI release command. 5231 */ 5232int 5233ctl_scsi_release(struct ctl_scsiio *ctsio) 5234{ 5235 int length, longid, thirdparty_id, resv_id; 5236 struct ctl_lun *lun; 5237 uint32_t residx; 5238 5239 length = 0; 5240 resv_id = 0; 5241 5242 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5243 5244 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5245 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5246 5247 switch (ctsio->cdb[0]) { 5248 case RELEASE_10: { 5249 struct scsi_release_10 *cdb; 5250 5251 cdb = (struct scsi_release_10 *)ctsio->cdb; 5252 5253 if (cdb->byte2 & SR10_LONGID) 5254 longid = 1; 5255 else 5256 thirdparty_id = cdb->thirdparty_id; 5257 5258 resv_id = cdb->resv_id; 5259 length = scsi_2btoul(cdb->length); 5260 break; 5261 } 5262 } 5263 5264 5265 /* 5266 * XXX KDM right now, we only support LUN reservation. We don't 5267 * support 3rd party reservations, or extent reservations, which 5268 * might actually need the parameter list. If we've gotten this 5269 * far, we've got a LUN reservation. Anything else got kicked out 5270 * above. So, according to SPC, ignore the length. 5271 */ 5272 length = 0; 5273 5274 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5275 && (length > 0)) { 5276 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5277 ctsio->kern_data_len = length; 5278 ctsio->kern_total_len = length; 5279 ctsio->kern_data_resid = 0; 5280 ctsio->kern_rel_offset = 0; 5281 ctsio->kern_sg_entries = 0; 5282 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5283 ctsio->be_move_done = ctl_config_move_done; 5284 ctl_datamove((union ctl_io *)ctsio); 5285 5286 return (CTL_RETVAL_COMPLETE); 5287 } 5288 5289 if (length > 0) 5290 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5291 5292 mtx_lock(&lun->lun_lock); 5293 5294 /* 5295 * According to SPC, it is not an error for an intiator to attempt 5296 * to release a reservation on a LUN that isn't reserved, or that 5297 * is reserved by another initiator. The reservation can only be 5298 * released, though, by the initiator who made it or by one of 5299 * several reset type events. 5300 */ 5301 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5302 lun->flags &= ~CTL_LUN_RESERVED; 5303 5304 mtx_unlock(&lun->lun_lock); 5305 5306 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5307 free(ctsio->kern_data_ptr, M_CTL); 5308 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5309 } 5310 5311 ctl_set_success(ctsio); 5312 ctl_done((union ctl_io *)ctsio); 5313 return (CTL_RETVAL_COMPLETE); 5314} 5315 5316int 5317ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5318{ 5319 int extent, thirdparty, longid; 5320 int resv_id, length; 5321 uint64_t thirdparty_id; 5322 struct ctl_lun *lun; 5323 uint32_t residx; 5324 5325 extent = 0; 5326 thirdparty = 0; 5327 longid = 0; 5328 resv_id = 0; 5329 length = 0; 5330 thirdparty_id = 0; 5331 5332 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5333 5334 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5335 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5336 5337 switch (ctsio->cdb[0]) { 5338 case RESERVE_10: { 5339 struct scsi_reserve_10 *cdb; 5340 5341 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 5342 5343 if (cdb->byte2 & SR10_LONGID) 5344 longid = 1; 5345 else 5346 thirdparty_id = cdb->thirdparty_id; 5347 5348 resv_id = cdb->resv_id; 5349 length = scsi_2btoul(cdb->length); 5350 break; 5351 } 5352 } 5353 5354 /* 5355 * XXX KDM right now, we only support LUN reservation. We don't 5356 * support 3rd party reservations, or extent reservations, which 5357 * might actually need the parameter list. If we've gotten this 5358 * far, we've got a LUN reservation. Anything else got kicked out 5359 * above. So, according to SPC, ignore the length. 5360 */ 5361 length = 0; 5362 5363 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5364 && (length > 0)) { 5365 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5366 ctsio->kern_data_len = length; 5367 ctsio->kern_total_len = length; 5368 ctsio->kern_data_resid = 0; 5369 ctsio->kern_rel_offset = 0; 5370 ctsio->kern_sg_entries = 0; 5371 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5372 ctsio->be_move_done = ctl_config_move_done; 5373 ctl_datamove((union ctl_io *)ctsio); 5374 5375 return (CTL_RETVAL_COMPLETE); 5376 } 5377 5378 if (length > 0) 5379 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5380 5381 mtx_lock(&lun->lun_lock); 5382 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5383 ctl_set_reservation_conflict(ctsio); 5384 goto bailout; 5385 } 5386 5387 lun->flags |= CTL_LUN_RESERVED; 5388 lun->res_idx = residx; 5389 5390 ctl_set_success(ctsio); 5391 5392bailout: 5393 mtx_unlock(&lun->lun_lock); 5394 5395 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5396 free(ctsio->kern_data_ptr, M_CTL); 5397 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5398 } 5399 5400 ctl_done((union ctl_io *)ctsio); 5401 return (CTL_RETVAL_COMPLETE); 5402} 5403 5404int 5405ctl_start_stop(struct ctl_scsiio *ctsio) 5406{ 5407 struct scsi_start_stop_unit *cdb; 5408 struct ctl_lun *lun; 5409 int retval; 5410 5411 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5412 5413 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5414 retval = 0; 5415 5416 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5417 5418 /* 5419 * XXX KDM 5420 * We don't support the immediate bit on a stop unit. In order to 5421 * do that, we would need to code up a way to know that a stop is 5422 * pending, and hold off any new commands until it completes, one 5423 * way or another. Then we could accept or reject those commands 5424 * depending on its status. We would almost need to do the reverse 5425 * of what we do below for an immediate start -- return the copy of 5426 * the ctl_io to the FETD with status to send to the host (and to 5427 * free the copy!) and then free the original I/O once the stop 5428 * actually completes. That way, the OOA queue mechanism can work 5429 * to block commands that shouldn't proceed. Another alternative 5430 * would be to put the copy in the queue in place of the original, 5431 * and return the original back to the caller. That could be 5432 * slightly safer.. 5433 */ 5434 if ((cdb->byte2 & SSS_IMMED) 5435 && ((cdb->how & SSS_START) == 0)) { 5436 ctl_set_invalid_field(ctsio, 5437 /*sks_valid*/ 1, 5438 /*command*/ 1, 5439 /*field*/ 1, 5440 /*bit_valid*/ 1, 5441 /*bit*/ 0); 5442 ctl_done((union ctl_io *)ctsio); 5443 return (CTL_RETVAL_COMPLETE); 5444 } 5445 5446 if ((lun->flags & CTL_LUN_PR_RESERVED) 5447 && ((cdb->how & SSS_START)==0)) { 5448 uint32_t residx; 5449 5450 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5451 if (ctl_get_prkey(lun, residx) == 0 5452 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5453 5454 ctl_set_reservation_conflict(ctsio); 5455 ctl_done((union ctl_io *)ctsio); 5456 return (CTL_RETVAL_COMPLETE); 5457 } 5458 } 5459 5460 /* 5461 * If there is no backend on this device, we can't start or stop 5462 * it. In theory we shouldn't get any start/stop commands in the 5463 * first place at this level if the LUN doesn't have a backend. 5464 * That should get stopped by the command decode code. 5465 */ 5466 if (lun->backend == NULL) { 5467 ctl_set_invalid_opcode(ctsio); 5468 ctl_done((union ctl_io *)ctsio); 5469 return (CTL_RETVAL_COMPLETE); 5470 } 5471 5472 /* 5473 * XXX KDM Copan-specific offline behavior. 5474 * Figure out a reasonable way to port this? 5475 */ 5476#ifdef NEEDTOPORT 5477 mtx_lock(&lun->lun_lock); 5478 5479 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5480 && (lun->flags & CTL_LUN_OFFLINE)) { 5481 /* 5482 * If the LUN is offline, and the on/offline bit isn't set, 5483 * reject the start or stop. Otherwise, let it through. 5484 */ 5485 mtx_unlock(&lun->lun_lock); 5486 ctl_set_lun_not_ready(ctsio); 5487 ctl_done((union ctl_io *)ctsio); 5488 } else { 5489 mtx_unlock(&lun->lun_lock); 5490#endif /* NEEDTOPORT */ 5491 /* 5492 * This could be a start or a stop when we're online, 5493 * or a stop/offline or start/online. A start or stop when 5494 * we're offline is covered in the case above. 5495 */ 5496 /* 5497 * In the non-immediate case, we send the request to 5498 * the backend and return status to the user when 5499 * it is done. 5500 * 5501 * In the immediate case, we allocate a new ctl_io 5502 * to hold a copy of the request, and send that to 5503 * the backend. We then set good status on the 5504 * user's request and return it immediately. 5505 */ 5506 if (cdb->byte2 & SSS_IMMED) { 5507 union ctl_io *new_io; 5508 5509 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5510 ctl_copy_io((union ctl_io *)ctsio, new_io); 5511 retval = lun->backend->config_write(new_io); 5512 ctl_set_success(ctsio); 5513 ctl_done((union ctl_io *)ctsio); 5514 } else { 5515 retval = lun->backend->config_write( 5516 (union ctl_io *)ctsio); 5517 } 5518#ifdef NEEDTOPORT 5519 } 5520#endif 5521 return (retval); 5522} 5523 5524/* 5525 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5526 * we don't really do anything with the LBA and length fields if the user 5527 * passes them in. Instead we'll just flush out the cache for the entire 5528 * LUN. 5529 */ 5530int 5531ctl_sync_cache(struct ctl_scsiio *ctsio) 5532{ 5533 struct ctl_lun *lun; 5534 struct ctl_softc *softc; 5535 uint64_t starting_lba; 5536 uint32_t block_count; 5537 int retval; 5538 5539 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5540 5541 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5542 softc = lun->ctl_softc; 5543 retval = 0; 5544 5545 switch (ctsio->cdb[0]) { 5546 case SYNCHRONIZE_CACHE: { 5547 struct scsi_sync_cache *cdb; 5548 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5549 5550 starting_lba = scsi_4btoul(cdb->begin_lba); 5551 block_count = scsi_2btoul(cdb->lb_count); 5552 break; 5553 } 5554 case SYNCHRONIZE_CACHE_16: { 5555 struct scsi_sync_cache_16 *cdb; 5556 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5557 5558 starting_lba = scsi_8btou64(cdb->begin_lba); 5559 block_count = scsi_4btoul(cdb->lb_count); 5560 break; 5561 } 5562 default: 5563 ctl_set_invalid_opcode(ctsio); 5564 ctl_done((union ctl_io *)ctsio); 5565 goto bailout; 5566 break; /* NOTREACHED */ 5567 } 5568 5569 /* 5570 * We check the LBA and length, but don't do anything with them. 5571 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5572 * get flushed. This check will just help satisfy anyone who wants 5573 * to see an error for an out of range LBA. 5574 */ 5575 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5576 ctl_set_lba_out_of_range(ctsio); 5577 ctl_done((union ctl_io *)ctsio); 5578 goto bailout; 5579 } 5580 5581 /* 5582 * If this LUN has no backend, we can't flush the cache anyway. 5583 */ 5584 if (lun->backend == NULL) { 5585 ctl_set_invalid_opcode(ctsio); 5586 ctl_done((union ctl_io *)ctsio); 5587 goto bailout; 5588 } 5589 5590 /* 5591 * Check to see whether we're configured to send the SYNCHRONIZE 5592 * CACHE command directly to the back end. 5593 */ 5594 mtx_lock(&lun->lun_lock); 5595 if ((softc->flags & CTL_FLAG_REAL_SYNC) 5596 && (++(lun->sync_count) >= lun->sync_interval)) { 5597 lun->sync_count = 0; 5598 mtx_unlock(&lun->lun_lock); 5599 retval = lun->backend->config_write((union ctl_io *)ctsio); 5600 } else { 5601 mtx_unlock(&lun->lun_lock); 5602 ctl_set_success(ctsio); 5603 ctl_done((union ctl_io *)ctsio); 5604 } 5605 5606bailout: 5607 5608 return (retval); 5609} 5610 5611int 5612ctl_format(struct ctl_scsiio *ctsio) 5613{ 5614 struct scsi_format *cdb; 5615 struct ctl_lun *lun; 5616 int length, defect_list_len; 5617 5618 CTL_DEBUG_PRINT(("ctl_format\n")); 5619 5620 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5621 5622 cdb = (struct scsi_format *)ctsio->cdb; 5623 5624 length = 0; 5625 if (cdb->byte2 & SF_FMTDATA) { 5626 if (cdb->byte2 & SF_LONGLIST) 5627 length = sizeof(struct scsi_format_header_long); 5628 else 5629 length = sizeof(struct scsi_format_header_short); 5630 } 5631 5632 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5633 && (length > 0)) { 5634 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5635 ctsio->kern_data_len = length; 5636 ctsio->kern_total_len = length; 5637 ctsio->kern_data_resid = 0; 5638 ctsio->kern_rel_offset = 0; 5639 ctsio->kern_sg_entries = 0; 5640 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5641 ctsio->be_move_done = ctl_config_move_done; 5642 ctl_datamove((union ctl_io *)ctsio); 5643 5644 return (CTL_RETVAL_COMPLETE); 5645 } 5646 5647 defect_list_len = 0; 5648 5649 if (cdb->byte2 & SF_FMTDATA) { 5650 if (cdb->byte2 & SF_LONGLIST) { 5651 struct scsi_format_header_long *header; 5652 5653 header = (struct scsi_format_header_long *) 5654 ctsio->kern_data_ptr; 5655 5656 defect_list_len = scsi_4btoul(header->defect_list_len); 5657 if (defect_list_len != 0) { 5658 ctl_set_invalid_field(ctsio, 5659 /*sks_valid*/ 1, 5660 /*command*/ 0, 5661 /*field*/ 2, 5662 /*bit_valid*/ 0, 5663 /*bit*/ 0); 5664 goto bailout; 5665 } 5666 } else { 5667 struct scsi_format_header_short *header; 5668 5669 header = (struct scsi_format_header_short *) 5670 ctsio->kern_data_ptr; 5671 5672 defect_list_len = scsi_2btoul(header->defect_list_len); 5673 if (defect_list_len != 0) { 5674 ctl_set_invalid_field(ctsio, 5675 /*sks_valid*/ 1, 5676 /*command*/ 0, 5677 /*field*/ 2, 5678 /*bit_valid*/ 0, 5679 /*bit*/ 0); 5680 goto bailout; 5681 } 5682 } 5683 } 5684 5685 /* 5686 * The format command will clear out the "Medium format corrupted" 5687 * status if set by the configuration code. That status is really 5688 * just a way to notify the host that we have lost the media, and 5689 * get them to issue a command that will basically make them think 5690 * they're blowing away the media. 5691 */ 5692 mtx_lock(&lun->lun_lock); 5693 lun->flags &= ~CTL_LUN_INOPERABLE; 5694 mtx_unlock(&lun->lun_lock); 5695 5696 ctl_set_success(ctsio); 5697bailout: 5698 5699 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5700 free(ctsio->kern_data_ptr, M_CTL); 5701 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5702 } 5703 5704 ctl_done((union ctl_io *)ctsio); 5705 return (CTL_RETVAL_COMPLETE); 5706} 5707 5708int 5709ctl_read_buffer(struct ctl_scsiio *ctsio) 5710{ 5711 struct scsi_read_buffer *cdb; 5712 struct ctl_lun *lun; 5713 int buffer_offset, len; 5714 static uint8_t descr[4]; 5715 static uint8_t echo_descr[4] = { 0 }; 5716 5717 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5718 5719 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5720 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5721 5722 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA && 5723 (cdb->byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5724 (cdb->byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5725 ctl_set_invalid_field(ctsio, 5726 /*sks_valid*/ 1, 5727 /*command*/ 1, 5728 /*field*/ 1, 5729 /*bit_valid*/ 1, 5730 /*bit*/ 4); 5731 ctl_done((union ctl_io *)ctsio); 5732 return (CTL_RETVAL_COMPLETE); 5733 } 5734 5735 len = scsi_3btoul(cdb->length); 5736 buffer_offset = scsi_3btoul(cdb->offset); 5737 5738 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5739 ctl_set_invalid_field(ctsio, 5740 /*sks_valid*/ 1, 5741 /*command*/ 1, 5742 /*field*/ 6, 5743 /*bit_valid*/ 0, 5744 /*bit*/ 0); 5745 ctl_done((union ctl_io *)ctsio); 5746 return (CTL_RETVAL_COMPLETE); 5747 } 5748 5749 if ((cdb->byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5750 descr[0] = 0; 5751 scsi_ulto3b(CTL_WRITE_BUFFER_SIZE, &descr[1]); 5752 ctsio->kern_data_ptr = descr; 5753 len = min(len, sizeof(descr)); 5754 } else if ((cdb->byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5755 ctsio->kern_data_ptr = echo_descr; 5756 len = min(len, sizeof(echo_descr)); 5757 } else { 5758 if (lun->write_buffer == NULL) { 5759 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5760 M_CTL, M_WAITOK); 5761 } 5762 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5763 } 5764 ctsio->kern_data_len = len; 5765 ctsio->kern_total_len = len; 5766 ctsio->kern_data_resid = 0; 5767 ctsio->kern_rel_offset = 0; 5768 ctsio->kern_sg_entries = 0; 5769 ctl_set_success(ctsio); 5770 ctsio->be_move_done = ctl_config_move_done; 5771 ctl_datamove((union ctl_io *)ctsio); 5772 return (CTL_RETVAL_COMPLETE); 5773} 5774 5775int 5776ctl_write_buffer(struct ctl_scsiio *ctsio) 5777{ 5778 struct scsi_write_buffer *cdb; 5779 struct ctl_lun *lun; 5780 int buffer_offset, len; 5781 5782 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5783 5784 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5785 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5786 5787 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5788 ctl_set_invalid_field(ctsio, 5789 /*sks_valid*/ 1, 5790 /*command*/ 1, 5791 /*field*/ 1, 5792 /*bit_valid*/ 1, 5793 /*bit*/ 4); 5794 ctl_done((union ctl_io *)ctsio); 5795 return (CTL_RETVAL_COMPLETE); 5796 } 5797 5798 len = scsi_3btoul(cdb->length); 5799 buffer_offset = scsi_3btoul(cdb->offset); 5800 5801 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5802 ctl_set_invalid_field(ctsio, 5803 /*sks_valid*/ 1, 5804 /*command*/ 1, 5805 /*field*/ 6, 5806 /*bit_valid*/ 0, 5807 /*bit*/ 0); 5808 ctl_done((union ctl_io *)ctsio); 5809 return (CTL_RETVAL_COMPLETE); 5810 } 5811 5812 /* 5813 * If we've got a kernel request that hasn't been malloced yet, 5814 * malloc it and tell the caller the data buffer is here. 5815 */ 5816 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5817 if (lun->write_buffer == NULL) { 5818 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5819 M_CTL, M_WAITOK); 5820 } 5821 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5822 ctsio->kern_data_len = len; 5823 ctsio->kern_total_len = len; 5824 ctsio->kern_data_resid = 0; 5825 ctsio->kern_rel_offset = 0; 5826 ctsio->kern_sg_entries = 0; 5827 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5828 ctsio->be_move_done = ctl_config_move_done; 5829 ctl_datamove((union ctl_io *)ctsio); 5830 5831 return (CTL_RETVAL_COMPLETE); 5832 } 5833 5834 ctl_set_success(ctsio); 5835 ctl_done((union ctl_io *)ctsio); 5836 return (CTL_RETVAL_COMPLETE); 5837} 5838 5839int 5840ctl_write_same(struct ctl_scsiio *ctsio) 5841{ 5842 struct ctl_lun *lun; 5843 struct ctl_lba_len_flags *lbalen; 5844 uint64_t lba; 5845 uint32_t num_blocks; 5846 int len, retval; 5847 uint8_t byte2; 5848 5849 retval = CTL_RETVAL_COMPLETE; 5850 5851 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5852 5853 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5854 5855 switch (ctsio->cdb[0]) { 5856 case WRITE_SAME_10: { 5857 struct scsi_write_same_10 *cdb; 5858 5859 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5860 5861 lba = scsi_4btoul(cdb->addr); 5862 num_blocks = scsi_2btoul(cdb->length); 5863 byte2 = cdb->byte2; 5864 break; 5865 } 5866 case WRITE_SAME_16: { 5867 struct scsi_write_same_16 *cdb; 5868 5869 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5870 5871 lba = scsi_8btou64(cdb->addr); 5872 num_blocks = scsi_4btoul(cdb->length); 5873 byte2 = cdb->byte2; 5874 break; 5875 } 5876 default: 5877 /* 5878 * We got a command we don't support. This shouldn't 5879 * happen, commands should be filtered out above us. 5880 */ 5881 ctl_set_invalid_opcode(ctsio); 5882 ctl_done((union ctl_io *)ctsio); 5883 5884 return (CTL_RETVAL_COMPLETE); 5885 break; /* NOTREACHED */ 5886 } 5887 5888 /* NDOB and ANCHOR flags can be used only together with UNMAP */ 5889 if ((byte2 & SWS_UNMAP) == 0 && 5890 (byte2 & (SWS_NDOB | SWS_ANCHOR)) != 0) { 5891 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5892 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5893 ctl_done((union ctl_io *)ctsio); 5894 return (CTL_RETVAL_COMPLETE); 5895 } 5896 5897 /* 5898 * The first check is to make sure we're in bounds, the second 5899 * check is to catch wrap-around problems. If the lba + num blocks 5900 * is less than the lba, then we've wrapped around and the block 5901 * range is invalid anyway. 5902 */ 5903 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5904 || ((lba + num_blocks) < lba)) { 5905 ctl_set_lba_out_of_range(ctsio); 5906 ctl_done((union ctl_io *)ctsio); 5907 return (CTL_RETVAL_COMPLETE); 5908 } 5909 5910 /* Zero number of blocks means "to the last logical block" */ 5911 if (num_blocks == 0) { 5912 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5913 ctl_set_invalid_field(ctsio, 5914 /*sks_valid*/ 0, 5915 /*command*/ 1, 5916 /*field*/ 0, 5917 /*bit_valid*/ 0, 5918 /*bit*/ 0); 5919 ctl_done((union ctl_io *)ctsio); 5920 return (CTL_RETVAL_COMPLETE); 5921 } 5922 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5923 } 5924 5925 len = lun->be_lun->blocksize; 5926 5927 /* 5928 * If we've got a kernel request that hasn't been malloced yet, 5929 * malloc it and tell the caller the data buffer is here. 5930 */ 5931 if ((byte2 & SWS_NDOB) == 0 && 5932 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5933 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5934 ctsio->kern_data_len = len; 5935 ctsio->kern_total_len = len; 5936 ctsio->kern_data_resid = 0; 5937 ctsio->kern_rel_offset = 0; 5938 ctsio->kern_sg_entries = 0; 5939 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5940 ctsio->be_move_done = ctl_config_move_done; 5941 ctl_datamove((union ctl_io *)ctsio); 5942 5943 return (CTL_RETVAL_COMPLETE); 5944 } 5945 5946 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5947 lbalen->lba = lba; 5948 lbalen->len = num_blocks; 5949 lbalen->flags = byte2; 5950 retval = lun->backend->config_write((union ctl_io *)ctsio); 5951 5952 return (retval); 5953} 5954 5955int 5956ctl_unmap(struct ctl_scsiio *ctsio) 5957{ 5958 struct ctl_lun *lun; 5959 struct scsi_unmap *cdb; 5960 struct ctl_ptr_len_flags *ptrlen; 5961 struct scsi_unmap_header *hdr; 5962 struct scsi_unmap_desc *buf, *end, *endnz, *range; 5963 uint64_t lba; 5964 uint32_t num_blocks; 5965 int len, retval; 5966 uint8_t byte2; 5967 5968 retval = CTL_RETVAL_COMPLETE; 5969 5970 CTL_DEBUG_PRINT(("ctl_unmap\n")); 5971 5972 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5973 cdb = (struct scsi_unmap *)ctsio->cdb; 5974 5975 len = scsi_2btoul(cdb->length); 5976 byte2 = cdb->byte2; 5977 5978 /* 5979 * If we've got a kernel request that hasn't been malloced yet, 5980 * malloc it and tell the caller the data buffer is here. 5981 */ 5982 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5983 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5984 ctsio->kern_data_len = len; 5985 ctsio->kern_total_len = len; 5986 ctsio->kern_data_resid = 0; 5987 ctsio->kern_rel_offset = 0; 5988 ctsio->kern_sg_entries = 0; 5989 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5990 ctsio->be_move_done = ctl_config_move_done; 5991 ctl_datamove((union ctl_io *)ctsio); 5992 5993 return (CTL_RETVAL_COMPLETE); 5994 } 5995 5996 len = ctsio->kern_total_len - ctsio->kern_data_resid; 5997 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 5998 if (len < sizeof (*hdr) || 5999 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 6000 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 6001 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 6002 ctl_set_invalid_field(ctsio, 6003 /*sks_valid*/ 0, 6004 /*command*/ 0, 6005 /*field*/ 0, 6006 /*bit_valid*/ 0, 6007 /*bit*/ 0); 6008 goto done; 6009 } 6010 len = scsi_2btoul(hdr->desc_length); 6011 buf = (struct scsi_unmap_desc *)(hdr + 1); 6012 end = buf + len / sizeof(*buf); 6013 6014 endnz = buf; 6015 for (range = buf; range < end; range++) { 6016 lba = scsi_8btou64(range->lba); 6017 num_blocks = scsi_4btoul(range->length); 6018 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 6019 || ((lba + num_blocks) < lba)) { 6020 ctl_set_lba_out_of_range(ctsio); 6021 ctl_done((union ctl_io *)ctsio); 6022 return (CTL_RETVAL_COMPLETE); 6023 } 6024 if (num_blocks != 0) 6025 endnz = range + 1; 6026 } 6027 6028 /* 6029 * Block backend can not handle zero last range. 6030 * Filter it out and return if there is nothing left. 6031 */ 6032 len = (uint8_t *)endnz - (uint8_t *)buf; 6033 if (len == 0) { 6034 ctl_set_success(ctsio); 6035 goto done; 6036 } 6037 6038 mtx_lock(&lun->lun_lock); 6039 ptrlen = (struct ctl_ptr_len_flags *) 6040 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6041 ptrlen->ptr = (void *)buf; 6042 ptrlen->len = len; 6043 ptrlen->flags = byte2; 6044 ctl_check_blocked(lun); 6045 mtx_unlock(&lun->lun_lock); 6046 6047 retval = lun->backend->config_write((union ctl_io *)ctsio); 6048 return (retval); 6049 6050done: 6051 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 6052 free(ctsio->kern_data_ptr, M_CTL); 6053 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 6054 } 6055 ctl_done((union ctl_io *)ctsio); 6056 return (CTL_RETVAL_COMPLETE); 6057} 6058 6059/* 6060 * Note that this function currently doesn't actually do anything inside 6061 * CTL to enforce things if the DQue bit is turned on. 6062 * 6063 * Also note that this function can't be used in the default case, because 6064 * the DQue bit isn't set in the changeable mask for the control mode page 6065 * anyway. This is just here as an example for how to implement a page 6066 * handler, and a placeholder in case we want to allow the user to turn 6067 * tagged queueing on and off. 6068 * 6069 * The D_SENSE bit handling is functional, however, and will turn 6070 * descriptor sense on and off for a given LUN. 6071 */ 6072int 6073ctl_control_page_handler(struct ctl_scsiio *ctsio, 6074 struct ctl_page_index *page_index, uint8_t *page_ptr) 6075{ 6076 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 6077 struct ctl_lun *lun; 6078 int set_ua; 6079 uint32_t initidx; 6080 6081 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6082 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6083 set_ua = 0; 6084 6085 user_cp = (struct scsi_control_page *)page_ptr; 6086 current_cp = (struct scsi_control_page *) 6087 (page_index->page_data + (page_index->page_len * 6088 CTL_PAGE_CURRENT)); 6089 saved_cp = (struct scsi_control_page *) 6090 (page_index->page_data + (page_index->page_len * 6091 CTL_PAGE_SAVED)); 6092 6093 mtx_lock(&lun->lun_lock); 6094 if (((current_cp->rlec & SCP_DSENSE) == 0) 6095 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 6096 /* 6097 * Descriptor sense is currently turned off and the user 6098 * wants to turn it on. 6099 */ 6100 current_cp->rlec |= SCP_DSENSE; 6101 saved_cp->rlec |= SCP_DSENSE; 6102 lun->flags |= CTL_LUN_SENSE_DESC; 6103 set_ua = 1; 6104 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 6105 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 6106 /* 6107 * Descriptor sense is currently turned on, and the user 6108 * wants to turn it off. 6109 */ 6110 current_cp->rlec &= ~SCP_DSENSE; 6111 saved_cp->rlec &= ~SCP_DSENSE; 6112 lun->flags &= ~CTL_LUN_SENSE_DESC; 6113 set_ua = 1; 6114 } 6115 if ((current_cp->queue_flags & SCP_QUEUE_ALG_MASK) != 6116 (user_cp->queue_flags & SCP_QUEUE_ALG_MASK)) { 6117 current_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6118 current_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6119 saved_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6120 saved_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6121 set_ua = 1; 6122 } 6123 if ((current_cp->eca_and_aen & SCP_SWP) != 6124 (user_cp->eca_and_aen & SCP_SWP)) { 6125 current_cp->eca_and_aen &= ~SCP_SWP; 6126 current_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6127 saved_cp->eca_and_aen &= ~SCP_SWP; 6128 saved_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6129 set_ua = 1; 6130 } 6131 if (set_ua != 0) 6132 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 6133 mtx_unlock(&lun->lun_lock); 6134 6135 return (0); 6136} 6137 6138int 6139ctl_caching_sp_handler(struct ctl_scsiio *ctsio, 6140 struct ctl_page_index *page_index, uint8_t *page_ptr) 6141{ 6142 struct scsi_caching_page *current_cp, *saved_cp, *user_cp; 6143 struct ctl_lun *lun; 6144 int set_ua; 6145 uint32_t initidx; 6146 6147 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6148 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6149 set_ua = 0; 6150 6151 user_cp = (struct scsi_caching_page *)page_ptr; 6152 current_cp = (struct scsi_caching_page *) 6153 (page_index->page_data + (page_index->page_len * 6154 CTL_PAGE_CURRENT)); 6155 saved_cp = (struct scsi_caching_page *) 6156 (page_index->page_data + (page_index->page_len * 6157 CTL_PAGE_SAVED)); 6158 6159 mtx_lock(&lun->lun_lock); 6160 if ((current_cp->flags1 & (SCP_WCE | SCP_RCD)) != 6161 (user_cp->flags1 & (SCP_WCE | SCP_RCD))) { 6162 current_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6163 current_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6164 saved_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6165 saved_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6166 set_ua = 1; 6167 } 6168 if (set_ua != 0) 6169 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 6170 mtx_unlock(&lun->lun_lock); 6171 6172 return (0); 6173} 6174 6175int 6176ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 6177 struct ctl_page_index *page_index, 6178 uint8_t *page_ptr) 6179{ 6180 uint8_t *c; 6181 int i; 6182 6183 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 6184 ctl_time_io_secs = 6185 (c[0] << 8) | 6186 (c[1] << 0) | 6187 0; 6188 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 6189 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 6190 printf("page data:"); 6191 for (i=0; i<8; i++) 6192 printf(" %.2x",page_ptr[i]); 6193 printf("\n"); 6194 return (0); 6195} 6196 6197int 6198ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 6199 struct ctl_page_index *page_index, 6200 int pc) 6201{ 6202 struct copan_debugconf_subpage *page; 6203 6204 page = (struct copan_debugconf_subpage *)page_index->page_data + 6205 (page_index->page_len * pc); 6206 6207 switch (pc) { 6208 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6209 case SMS_PAGE_CTRL_DEFAULT >> 6: 6210 case SMS_PAGE_CTRL_SAVED >> 6: 6211 /* 6212 * We don't update the changable or default bits for this page. 6213 */ 6214 break; 6215 case SMS_PAGE_CTRL_CURRENT >> 6: 6216 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 6217 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 6218 break; 6219 default: 6220#ifdef NEEDTOPORT 6221 EPRINT(0, "Invalid PC %d!!", pc); 6222#endif /* NEEDTOPORT */ 6223 break; 6224 } 6225 return (0); 6226} 6227 6228 6229static int 6230ctl_do_mode_select(union ctl_io *io) 6231{ 6232 struct scsi_mode_page_header *page_header; 6233 struct ctl_page_index *page_index; 6234 struct ctl_scsiio *ctsio; 6235 int control_dev, page_len; 6236 int page_len_offset, page_len_size; 6237 union ctl_modepage_info *modepage_info; 6238 struct ctl_lun *lun; 6239 int *len_left, *len_used; 6240 int retval, i; 6241 6242 ctsio = &io->scsiio; 6243 page_index = NULL; 6244 page_len = 0; 6245 retval = CTL_RETVAL_COMPLETE; 6246 6247 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6248 6249 if (lun->be_lun->lun_type != T_DIRECT) 6250 control_dev = 1; 6251 else 6252 control_dev = 0; 6253 6254 modepage_info = (union ctl_modepage_info *) 6255 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6256 len_left = &modepage_info->header.len_left; 6257 len_used = &modepage_info->header.len_used; 6258 6259do_next_page: 6260 6261 page_header = (struct scsi_mode_page_header *) 6262 (ctsio->kern_data_ptr + *len_used); 6263 6264 if (*len_left == 0) { 6265 free(ctsio->kern_data_ptr, M_CTL); 6266 ctl_set_success(ctsio); 6267 ctl_done((union ctl_io *)ctsio); 6268 return (CTL_RETVAL_COMPLETE); 6269 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6270 6271 free(ctsio->kern_data_ptr, M_CTL); 6272 ctl_set_param_len_error(ctsio); 6273 ctl_done((union ctl_io *)ctsio); 6274 return (CTL_RETVAL_COMPLETE); 6275 6276 } else if ((page_header->page_code & SMPH_SPF) 6277 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6278 6279 free(ctsio->kern_data_ptr, M_CTL); 6280 ctl_set_param_len_error(ctsio); 6281 ctl_done((union ctl_io *)ctsio); 6282 return (CTL_RETVAL_COMPLETE); 6283 } 6284 6285 6286 /* 6287 * XXX KDM should we do something with the block descriptor? 6288 */ 6289 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6290 6291 if ((control_dev != 0) 6292 && (lun->mode_pages.index[i].page_flags & 6293 CTL_PAGE_FLAG_DISK_ONLY)) 6294 continue; 6295 6296 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 6297 (page_header->page_code & SMPH_PC_MASK)) 6298 continue; 6299 6300 /* 6301 * If neither page has a subpage code, then we've got a 6302 * match. 6303 */ 6304 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 6305 && ((page_header->page_code & SMPH_SPF) == 0)) { 6306 page_index = &lun->mode_pages.index[i]; 6307 page_len = page_header->page_length; 6308 break; 6309 } 6310 6311 /* 6312 * If both pages have subpages, then the subpage numbers 6313 * have to match. 6314 */ 6315 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 6316 && (page_header->page_code & SMPH_SPF)) { 6317 struct scsi_mode_page_header_sp *sph; 6318 6319 sph = (struct scsi_mode_page_header_sp *)page_header; 6320 6321 if (lun->mode_pages.index[i].subpage == 6322 sph->subpage) { 6323 page_index = &lun->mode_pages.index[i]; 6324 page_len = scsi_2btoul(sph->page_length); 6325 break; 6326 } 6327 } 6328 } 6329 6330 /* 6331 * If we couldn't find the page, or if we don't have a mode select 6332 * handler for it, send back an error to the user. 6333 */ 6334 if ((page_index == NULL) 6335 || (page_index->select_handler == NULL)) { 6336 ctl_set_invalid_field(ctsio, 6337 /*sks_valid*/ 1, 6338 /*command*/ 0, 6339 /*field*/ *len_used, 6340 /*bit_valid*/ 0, 6341 /*bit*/ 0); 6342 free(ctsio->kern_data_ptr, M_CTL); 6343 ctl_done((union ctl_io *)ctsio); 6344 return (CTL_RETVAL_COMPLETE); 6345 } 6346 6347 if (page_index->page_code & SMPH_SPF) { 6348 page_len_offset = 2; 6349 page_len_size = 2; 6350 } else { 6351 page_len_size = 1; 6352 page_len_offset = 1; 6353 } 6354 6355 /* 6356 * If the length the initiator gives us isn't the one we specify in 6357 * the mode page header, or if they didn't specify enough data in 6358 * the CDB to avoid truncating this page, kick out the request. 6359 */ 6360 if ((page_len != (page_index->page_len - page_len_offset - 6361 page_len_size)) 6362 || (*len_left < page_index->page_len)) { 6363 6364 6365 ctl_set_invalid_field(ctsio, 6366 /*sks_valid*/ 1, 6367 /*command*/ 0, 6368 /*field*/ *len_used + page_len_offset, 6369 /*bit_valid*/ 0, 6370 /*bit*/ 0); 6371 free(ctsio->kern_data_ptr, M_CTL); 6372 ctl_done((union ctl_io *)ctsio); 6373 return (CTL_RETVAL_COMPLETE); 6374 } 6375 6376 /* 6377 * Run through the mode page, checking to make sure that the bits 6378 * the user changed are actually legal for him to change. 6379 */ 6380 for (i = 0; i < page_index->page_len; i++) { 6381 uint8_t *user_byte, *change_mask, *current_byte; 6382 int bad_bit; 6383 int j; 6384 6385 user_byte = (uint8_t *)page_header + i; 6386 change_mask = page_index->page_data + 6387 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6388 current_byte = page_index->page_data + 6389 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6390 6391 /* 6392 * Check to see whether the user set any bits in this byte 6393 * that he is not allowed to set. 6394 */ 6395 if ((*user_byte & ~(*change_mask)) == 6396 (*current_byte & ~(*change_mask))) 6397 continue; 6398 6399 /* 6400 * Go through bit by bit to determine which one is illegal. 6401 */ 6402 bad_bit = 0; 6403 for (j = 7; j >= 0; j--) { 6404 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6405 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6406 bad_bit = i; 6407 break; 6408 } 6409 } 6410 ctl_set_invalid_field(ctsio, 6411 /*sks_valid*/ 1, 6412 /*command*/ 0, 6413 /*field*/ *len_used + i, 6414 /*bit_valid*/ 1, 6415 /*bit*/ bad_bit); 6416 free(ctsio->kern_data_ptr, M_CTL); 6417 ctl_done((union ctl_io *)ctsio); 6418 return (CTL_RETVAL_COMPLETE); 6419 } 6420 6421 /* 6422 * Decrement these before we call the page handler, since we may 6423 * end up getting called back one way or another before the handler 6424 * returns to this context. 6425 */ 6426 *len_left -= page_index->page_len; 6427 *len_used += page_index->page_len; 6428 6429 retval = page_index->select_handler(ctsio, page_index, 6430 (uint8_t *)page_header); 6431 6432 /* 6433 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6434 * wait until this queued command completes to finish processing 6435 * the mode page. If it returns anything other than 6436 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6437 * already set the sense information, freed the data pointer, and 6438 * completed the io for us. 6439 */ 6440 if (retval != CTL_RETVAL_COMPLETE) 6441 goto bailout_no_done; 6442 6443 /* 6444 * If the initiator sent us more than one page, parse the next one. 6445 */ 6446 if (*len_left > 0) 6447 goto do_next_page; 6448 6449 ctl_set_success(ctsio); 6450 free(ctsio->kern_data_ptr, M_CTL); 6451 ctl_done((union ctl_io *)ctsio); 6452 6453bailout_no_done: 6454 6455 return (CTL_RETVAL_COMPLETE); 6456 6457} 6458 6459int 6460ctl_mode_select(struct ctl_scsiio *ctsio) 6461{ 6462 int param_len, pf, sp; 6463 int header_size, bd_len; 6464 int len_left, len_used; 6465 struct ctl_page_index *page_index; 6466 struct ctl_lun *lun; 6467 int control_dev, page_len; 6468 union ctl_modepage_info *modepage_info; 6469 int retval; 6470 6471 pf = 0; 6472 sp = 0; 6473 page_len = 0; 6474 len_used = 0; 6475 len_left = 0; 6476 retval = 0; 6477 bd_len = 0; 6478 page_index = NULL; 6479 6480 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6481 6482 if (lun->be_lun->lun_type != T_DIRECT) 6483 control_dev = 1; 6484 else 6485 control_dev = 0; 6486 6487 switch (ctsio->cdb[0]) { 6488 case MODE_SELECT_6: { 6489 struct scsi_mode_select_6 *cdb; 6490 6491 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6492 6493 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6494 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6495 6496 param_len = cdb->length; 6497 header_size = sizeof(struct scsi_mode_header_6); 6498 break; 6499 } 6500 case MODE_SELECT_10: { 6501 struct scsi_mode_select_10 *cdb; 6502 6503 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6504 6505 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6506 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6507 6508 param_len = scsi_2btoul(cdb->length); 6509 header_size = sizeof(struct scsi_mode_header_10); 6510 break; 6511 } 6512 default: 6513 ctl_set_invalid_opcode(ctsio); 6514 ctl_done((union ctl_io *)ctsio); 6515 return (CTL_RETVAL_COMPLETE); 6516 break; /* NOTREACHED */ 6517 } 6518 6519 /* 6520 * From SPC-3: 6521 * "A parameter list length of zero indicates that the Data-Out Buffer 6522 * shall be empty. This condition shall not be considered as an error." 6523 */ 6524 if (param_len == 0) { 6525 ctl_set_success(ctsio); 6526 ctl_done((union ctl_io *)ctsio); 6527 return (CTL_RETVAL_COMPLETE); 6528 } 6529 6530 /* 6531 * Since we'll hit this the first time through, prior to 6532 * allocation, we don't need to free a data buffer here. 6533 */ 6534 if (param_len < header_size) { 6535 ctl_set_param_len_error(ctsio); 6536 ctl_done((union ctl_io *)ctsio); 6537 return (CTL_RETVAL_COMPLETE); 6538 } 6539 6540 /* 6541 * Allocate the data buffer and grab the user's data. In theory, 6542 * we shouldn't have to sanity check the parameter list length here 6543 * because the maximum size is 64K. We should be able to malloc 6544 * that much without too many problems. 6545 */ 6546 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6547 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6548 ctsio->kern_data_len = param_len; 6549 ctsio->kern_total_len = param_len; 6550 ctsio->kern_data_resid = 0; 6551 ctsio->kern_rel_offset = 0; 6552 ctsio->kern_sg_entries = 0; 6553 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6554 ctsio->be_move_done = ctl_config_move_done; 6555 ctl_datamove((union ctl_io *)ctsio); 6556 6557 return (CTL_RETVAL_COMPLETE); 6558 } 6559 6560 switch (ctsio->cdb[0]) { 6561 case MODE_SELECT_6: { 6562 struct scsi_mode_header_6 *mh6; 6563 6564 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6565 bd_len = mh6->blk_desc_len; 6566 break; 6567 } 6568 case MODE_SELECT_10: { 6569 struct scsi_mode_header_10 *mh10; 6570 6571 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6572 bd_len = scsi_2btoul(mh10->blk_desc_len); 6573 break; 6574 } 6575 default: 6576 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6577 break; 6578 } 6579 6580 if (param_len < (header_size + bd_len)) { 6581 free(ctsio->kern_data_ptr, M_CTL); 6582 ctl_set_param_len_error(ctsio); 6583 ctl_done((union ctl_io *)ctsio); 6584 return (CTL_RETVAL_COMPLETE); 6585 } 6586 6587 /* 6588 * Set the IO_CONT flag, so that if this I/O gets passed to 6589 * ctl_config_write_done(), it'll get passed back to 6590 * ctl_do_mode_select() for further processing, or completion if 6591 * we're all done. 6592 */ 6593 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6594 ctsio->io_cont = ctl_do_mode_select; 6595 6596 modepage_info = (union ctl_modepage_info *) 6597 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6598 6599 memset(modepage_info, 0, sizeof(*modepage_info)); 6600 6601 len_left = param_len - header_size - bd_len; 6602 len_used = header_size + bd_len; 6603 6604 modepage_info->header.len_left = len_left; 6605 modepage_info->header.len_used = len_used; 6606 6607 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6608} 6609 6610int 6611ctl_mode_sense(struct ctl_scsiio *ctsio) 6612{ 6613 struct ctl_lun *lun; 6614 int pc, page_code, dbd, llba, subpage; 6615 int alloc_len, page_len, header_len, total_len; 6616 struct scsi_mode_block_descr *block_desc; 6617 struct ctl_page_index *page_index; 6618 int control_dev; 6619 6620 dbd = 0; 6621 llba = 0; 6622 block_desc = NULL; 6623 page_index = NULL; 6624 6625 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6626 6627 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6628 6629 if (lun->be_lun->lun_type != T_DIRECT) 6630 control_dev = 1; 6631 else 6632 control_dev = 0; 6633 6634 switch (ctsio->cdb[0]) { 6635 case MODE_SENSE_6: { 6636 struct scsi_mode_sense_6 *cdb; 6637 6638 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6639 6640 header_len = sizeof(struct scsi_mode_hdr_6); 6641 if (cdb->byte2 & SMS_DBD) 6642 dbd = 1; 6643 else 6644 header_len += sizeof(struct scsi_mode_block_descr); 6645 6646 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6647 page_code = cdb->page & SMS_PAGE_CODE; 6648 subpage = cdb->subpage; 6649 alloc_len = cdb->length; 6650 break; 6651 } 6652 case MODE_SENSE_10: { 6653 struct scsi_mode_sense_10 *cdb; 6654 6655 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6656 6657 header_len = sizeof(struct scsi_mode_hdr_10); 6658 6659 if (cdb->byte2 & SMS_DBD) 6660 dbd = 1; 6661 else 6662 header_len += sizeof(struct scsi_mode_block_descr); 6663 if (cdb->byte2 & SMS10_LLBAA) 6664 llba = 1; 6665 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6666 page_code = cdb->page & SMS_PAGE_CODE; 6667 subpage = cdb->subpage; 6668 alloc_len = scsi_2btoul(cdb->length); 6669 break; 6670 } 6671 default: 6672 ctl_set_invalid_opcode(ctsio); 6673 ctl_done((union ctl_io *)ctsio); 6674 return (CTL_RETVAL_COMPLETE); 6675 break; /* NOTREACHED */ 6676 } 6677 6678 /* 6679 * We have to make a first pass through to calculate the size of 6680 * the pages that match the user's query. Then we allocate enough 6681 * memory to hold it, and actually copy the data into the buffer. 6682 */ 6683 switch (page_code) { 6684 case SMS_ALL_PAGES_PAGE: { 6685 int i; 6686 6687 page_len = 0; 6688 6689 /* 6690 * At the moment, values other than 0 and 0xff here are 6691 * reserved according to SPC-3. 6692 */ 6693 if ((subpage != SMS_SUBPAGE_PAGE_0) 6694 && (subpage != SMS_SUBPAGE_ALL)) { 6695 ctl_set_invalid_field(ctsio, 6696 /*sks_valid*/ 1, 6697 /*command*/ 1, 6698 /*field*/ 3, 6699 /*bit_valid*/ 0, 6700 /*bit*/ 0); 6701 ctl_done((union ctl_io *)ctsio); 6702 return (CTL_RETVAL_COMPLETE); 6703 } 6704 6705 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6706 if ((control_dev != 0) 6707 && (lun->mode_pages.index[i].page_flags & 6708 CTL_PAGE_FLAG_DISK_ONLY)) 6709 continue; 6710 6711 /* 6712 * We don't use this subpage if the user didn't 6713 * request all subpages. 6714 */ 6715 if ((lun->mode_pages.index[i].subpage != 0) 6716 && (subpage == SMS_SUBPAGE_PAGE_0)) 6717 continue; 6718 6719#if 0 6720 printf("found page %#x len %d\n", 6721 lun->mode_pages.index[i].page_code & 6722 SMPH_PC_MASK, 6723 lun->mode_pages.index[i].page_len); 6724#endif 6725 page_len += lun->mode_pages.index[i].page_len; 6726 } 6727 break; 6728 } 6729 default: { 6730 int i; 6731 6732 page_len = 0; 6733 6734 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6735 /* Look for the right page code */ 6736 if ((lun->mode_pages.index[i].page_code & 6737 SMPH_PC_MASK) != page_code) 6738 continue; 6739 6740 /* Look for the right subpage or the subpage wildcard*/ 6741 if ((lun->mode_pages.index[i].subpage != subpage) 6742 && (subpage != SMS_SUBPAGE_ALL)) 6743 continue; 6744 6745 /* Make sure the page is supported for this dev type */ 6746 if ((control_dev != 0) 6747 && (lun->mode_pages.index[i].page_flags & 6748 CTL_PAGE_FLAG_DISK_ONLY)) 6749 continue; 6750 6751#if 0 6752 printf("found page %#x len %d\n", 6753 lun->mode_pages.index[i].page_code & 6754 SMPH_PC_MASK, 6755 lun->mode_pages.index[i].page_len); 6756#endif 6757 6758 page_len += lun->mode_pages.index[i].page_len; 6759 } 6760 6761 if (page_len == 0) { 6762 ctl_set_invalid_field(ctsio, 6763 /*sks_valid*/ 1, 6764 /*command*/ 1, 6765 /*field*/ 2, 6766 /*bit_valid*/ 1, 6767 /*bit*/ 5); 6768 ctl_done((union ctl_io *)ctsio); 6769 return (CTL_RETVAL_COMPLETE); 6770 } 6771 break; 6772 } 6773 } 6774 6775 total_len = header_len + page_len; 6776#if 0 6777 printf("header_len = %d, page_len = %d, total_len = %d\n", 6778 header_len, page_len, total_len); 6779#endif 6780 6781 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6782 ctsio->kern_sg_entries = 0; 6783 ctsio->kern_data_resid = 0; 6784 ctsio->kern_rel_offset = 0; 6785 if (total_len < alloc_len) { 6786 ctsio->residual = alloc_len - total_len; 6787 ctsio->kern_data_len = total_len; 6788 ctsio->kern_total_len = total_len; 6789 } else { 6790 ctsio->residual = 0; 6791 ctsio->kern_data_len = alloc_len; 6792 ctsio->kern_total_len = alloc_len; 6793 } 6794 6795 switch (ctsio->cdb[0]) { 6796 case MODE_SENSE_6: { 6797 struct scsi_mode_hdr_6 *header; 6798 6799 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6800 6801 header->datalen = MIN(total_len - 1, 254); 6802 if (control_dev == 0) { 6803 header->dev_specific = 0x10; /* DPOFUA */ 6804 if ((lun->flags & CTL_LUN_READONLY) || 6805 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6806 .eca_and_aen & SCP_SWP) != 0) 6807 header->dev_specific |= 0x80; /* WP */ 6808 } 6809 if (dbd) 6810 header->block_descr_len = 0; 6811 else 6812 header->block_descr_len = 6813 sizeof(struct scsi_mode_block_descr); 6814 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6815 break; 6816 } 6817 case MODE_SENSE_10: { 6818 struct scsi_mode_hdr_10 *header; 6819 int datalen; 6820 6821 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6822 6823 datalen = MIN(total_len - 2, 65533); 6824 scsi_ulto2b(datalen, header->datalen); 6825 if (control_dev == 0) { 6826 header->dev_specific = 0x10; /* DPOFUA */ 6827 if ((lun->flags & CTL_LUN_READONLY) || 6828 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6829 .eca_and_aen & SCP_SWP) != 0) 6830 header->dev_specific |= 0x80; /* WP */ 6831 } 6832 if (dbd) 6833 scsi_ulto2b(0, header->block_descr_len); 6834 else 6835 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 6836 header->block_descr_len); 6837 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6838 break; 6839 } 6840 default: 6841 panic("invalid CDB type %#x", ctsio->cdb[0]); 6842 break; /* NOTREACHED */ 6843 } 6844 6845 /* 6846 * If we've got a disk, use its blocksize in the block 6847 * descriptor. Otherwise, just set it to 0. 6848 */ 6849 if (dbd == 0) { 6850 if (control_dev == 0) 6851 scsi_ulto3b(lun->be_lun->blocksize, 6852 block_desc->block_len); 6853 else 6854 scsi_ulto3b(0, block_desc->block_len); 6855 } 6856 6857 switch (page_code) { 6858 case SMS_ALL_PAGES_PAGE: { 6859 int i, data_used; 6860 6861 data_used = header_len; 6862 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6863 struct ctl_page_index *page_index; 6864 6865 page_index = &lun->mode_pages.index[i]; 6866 6867 if ((control_dev != 0) 6868 && (page_index->page_flags & 6869 CTL_PAGE_FLAG_DISK_ONLY)) 6870 continue; 6871 6872 /* 6873 * We don't use this subpage if the user didn't 6874 * request all subpages. We already checked (above) 6875 * to make sure the user only specified a subpage 6876 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 6877 */ 6878 if ((page_index->subpage != 0) 6879 && (subpage == SMS_SUBPAGE_PAGE_0)) 6880 continue; 6881 6882 /* 6883 * Call the handler, if it exists, to update the 6884 * page to the latest values. 6885 */ 6886 if (page_index->sense_handler != NULL) 6887 page_index->sense_handler(ctsio, page_index,pc); 6888 6889 memcpy(ctsio->kern_data_ptr + data_used, 6890 page_index->page_data + 6891 (page_index->page_len * pc), 6892 page_index->page_len); 6893 data_used += page_index->page_len; 6894 } 6895 break; 6896 } 6897 default: { 6898 int i, data_used; 6899 6900 data_used = header_len; 6901 6902 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6903 struct ctl_page_index *page_index; 6904 6905 page_index = &lun->mode_pages.index[i]; 6906 6907 /* Look for the right page code */ 6908 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6909 continue; 6910 6911 /* Look for the right subpage or the subpage wildcard*/ 6912 if ((page_index->subpage != subpage) 6913 && (subpage != SMS_SUBPAGE_ALL)) 6914 continue; 6915 6916 /* Make sure the page is supported for this dev type */ 6917 if ((control_dev != 0) 6918 && (page_index->page_flags & 6919 CTL_PAGE_FLAG_DISK_ONLY)) 6920 continue; 6921 6922 /* 6923 * Call the handler, if it exists, to update the 6924 * page to the latest values. 6925 */ 6926 if (page_index->sense_handler != NULL) 6927 page_index->sense_handler(ctsio, page_index,pc); 6928 6929 memcpy(ctsio->kern_data_ptr + data_used, 6930 page_index->page_data + 6931 (page_index->page_len * pc), 6932 page_index->page_len); 6933 data_used += page_index->page_len; 6934 } 6935 break; 6936 } 6937 } 6938 6939 ctl_set_success(ctsio); 6940 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6941 ctsio->be_move_done = ctl_config_move_done; 6942 ctl_datamove((union ctl_io *)ctsio); 6943 return (CTL_RETVAL_COMPLETE); 6944} 6945 6946int 6947ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio, 6948 struct ctl_page_index *page_index, 6949 int pc) 6950{ 6951 struct ctl_lun *lun; 6952 struct scsi_log_param_header *phdr; 6953 uint8_t *data; 6954 uint64_t val; 6955 6956 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6957 data = page_index->page_data; 6958 6959 if (lun->backend->lun_attr != NULL && 6960 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksavail")) 6961 != UINT64_MAX) { 6962 phdr = (struct scsi_log_param_header *)data; 6963 scsi_ulto2b(0x0001, phdr->param_code); 6964 phdr->param_control = SLP_LBIN | SLP_LP; 6965 phdr->param_len = 8; 6966 data = (uint8_t *)(phdr + 1); 6967 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6968 data[4] = 0x02; /* per-pool */ 6969 data += phdr->param_len; 6970 } 6971 6972 if (lun->backend->lun_attr != NULL && 6973 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksused")) 6974 != UINT64_MAX) { 6975 phdr = (struct scsi_log_param_header *)data; 6976 scsi_ulto2b(0x0002, phdr->param_code); 6977 phdr->param_control = SLP_LBIN | SLP_LP; 6978 phdr->param_len = 8; 6979 data = (uint8_t *)(phdr + 1); 6980 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6981 data[4] = 0x01; /* per-LUN */ 6982 data += phdr->param_len; 6983 } 6984 6985 if (lun->backend->lun_attr != NULL && 6986 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksavail")) 6987 != UINT64_MAX) { 6988 phdr = (struct scsi_log_param_header *)data; 6989 scsi_ulto2b(0x00f1, phdr->param_code); 6990 phdr->param_control = SLP_LBIN | SLP_LP; 6991 phdr->param_len = 8; 6992 data = (uint8_t *)(phdr + 1); 6993 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6994 data[4] = 0x02; /* per-pool */ 6995 data += phdr->param_len; 6996 } 6997 6998 if (lun->backend->lun_attr != NULL && 6999 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksused")) 7000 != UINT64_MAX) { 7001 phdr = (struct scsi_log_param_header *)data; 7002 scsi_ulto2b(0x00f2, phdr->param_code); 7003 phdr->param_control = SLP_LBIN | SLP_LP; 7004 phdr->param_len = 8; 7005 data = (uint8_t *)(phdr + 1); 7006 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 7007 data[4] = 0x02; /* per-pool */ 7008 data += phdr->param_len; 7009 } 7010 7011 page_index->page_len = data - page_index->page_data; 7012 return (0); 7013} 7014 7015int 7016ctl_sap_log_sense_handler(struct ctl_scsiio *ctsio, 7017 struct ctl_page_index *page_index, 7018 int pc) 7019{ 7020 struct ctl_lun *lun; 7021 struct stat_page *data; 7022 uint64_t rn, wn, rb, wb; 7023 struct bintime rt, wt; 7024 int i; 7025 7026 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7027 data = (struct stat_page *)page_index->page_data; 7028 7029 scsi_ulto2b(SLP_SAP, data->sap.hdr.param_code); 7030 data->sap.hdr.param_control = SLP_LBIN; 7031 data->sap.hdr.param_len = sizeof(struct scsi_log_stat_and_perf) - 7032 sizeof(struct scsi_log_param_header); 7033 rn = wn = rb = wb = 0; 7034 bintime_clear(&rt); 7035 bintime_clear(&wt); 7036 for (i = 0; i < CTL_MAX_PORTS; i++) { 7037 rn += lun->stats.ports[i].operations[CTL_STATS_READ]; 7038 wn += lun->stats.ports[i].operations[CTL_STATS_WRITE]; 7039 rb += lun->stats.ports[i].bytes[CTL_STATS_READ]; 7040 wb += lun->stats.ports[i].bytes[CTL_STATS_WRITE]; 7041 bintime_add(&rt, &lun->stats.ports[i].time[CTL_STATS_READ]); 7042 bintime_add(&wt, &lun->stats.ports[i].time[CTL_STATS_WRITE]); 7043 } 7044 scsi_u64to8b(rn, data->sap.read_num); 7045 scsi_u64to8b(wn, data->sap.write_num); 7046 if (lun->stats.blocksize > 0) { 7047 scsi_u64to8b(wb / lun->stats.blocksize, 7048 data->sap.recvieved_lba); 7049 scsi_u64to8b(rb / lun->stats.blocksize, 7050 data->sap.transmitted_lba); 7051 } 7052 scsi_u64to8b((uint64_t)rt.sec * 1000 + rt.frac / (UINT64_MAX / 1000), 7053 data->sap.read_int); 7054 scsi_u64to8b((uint64_t)wt.sec * 1000 + wt.frac / (UINT64_MAX / 1000), 7055 data->sap.write_int); 7056 scsi_u64to8b(0, data->sap.weighted_num); 7057 scsi_u64to8b(0, data->sap.weighted_int); 7058 scsi_ulto2b(SLP_IT, data->it.hdr.param_code); 7059 data->it.hdr.param_control = SLP_LBIN; 7060 data->it.hdr.param_len = sizeof(struct scsi_log_idle_time) - 7061 sizeof(struct scsi_log_param_header); 7062#ifdef CTL_TIME_IO 7063 scsi_u64to8b(lun->idle_time / SBT_1MS, data->it.idle_int); 7064#endif 7065 scsi_ulto2b(SLP_TI, data->ti.hdr.param_code); 7066 data->it.hdr.param_control = SLP_LBIN; 7067 data->ti.hdr.param_len = sizeof(struct scsi_log_time_interval) - 7068 sizeof(struct scsi_log_param_header); 7069 scsi_ulto4b(3, data->ti.exponent); 7070 scsi_ulto4b(1, data->ti.integer); 7071 7072 page_index->page_len = sizeof(*data); 7073 return (0); 7074} 7075 7076int 7077ctl_log_sense(struct ctl_scsiio *ctsio) 7078{ 7079 struct ctl_lun *lun; 7080 int i, pc, page_code, subpage; 7081 int alloc_len, total_len; 7082 struct ctl_page_index *page_index; 7083 struct scsi_log_sense *cdb; 7084 struct scsi_log_header *header; 7085 7086 CTL_DEBUG_PRINT(("ctl_log_sense\n")); 7087 7088 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7089 cdb = (struct scsi_log_sense *)ctsio->cdb; 7090 pc = (cdb->page & SLS_PAGE_CTRL_MASK) >> 6; 7091 page_code = cdb->page & SLS_PAGE_CODE; 7092 subpage = cdb->subpage; 7093 alloc_len = scsi_2btoul(cdb->length); 7094 7095 page_index = NULL; 7096 for (i = 0; i < CTL_NUM_LOG_PAGES; i++) { 7097 page_index = &lun->log_pages.index[i]; 7098 7099 /* Look for the right page code */ 7100 if ((page_index->page_code & SL_PAGE_CODE) != page_code) 7101 continue; 7102 7103 /* Look for the right subpage or the subpage wildcard*/ 7104 if (page_index->subpage != subpage) 7105 continue; 7106 7107 break; 7108 } 7109 if (i >= CTL_NUM_LOG_PAGES) { 7110 ctl_set_invalid_field(ctsio, 7111 /*sks_valid*/ 1, 7112 /*command*/ 1, 7113 /*field*/ 2, 7114 /*bit_valid*/ 0, 7115 /*bit*/ 0); 7116 ctl_done((union ctl_io *)ctsio); 7117 return (CTL_RETVAL_COMPLETE); 7118 } 7119 7120 total_len = sizeof(struct scsi_log_header) + page_index->page_len; 7121 7122 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7123 ctsio->kern_sg_entries = 0; 7124 ctsio->kern_data_resid = 0; 7125 ctsio->kern_rel_offset = 0; 7126 if (total_len < alloc_len) { 7127 ctsio->residual = alloc_len - total_len; 7128 ctsio->kern_data_len = total_len; 7129 ctsio->kern_total_len = total_len; 7130 } else { 7131 ctsio->residual = 0; 7132 ctsio->kern_data_len = alloc_len; 7133 ctsio->kern_total_len = alloc_len; 7134 } 7135 7136 header = (struct scsi_log_header *)ctsio->kern_data_ptr; 7137 header->page = page_index->page_code; 7138 if (page_index->subpage) { 7139 header->page |= SL_SPF; 7140 header->subpage = page_index->subpage; 7141 } 7142 scsi_ulto2b(page_index->page_len, header->datalen); 7143 7144 /* 7145 * Call the handler, if it exists, to update the 7146 * page to the latest values. 7147 */ 7148 if (page_index->sense_handler != NULL) 7149 page_index->sense_handler(ctsio, page_index, pc); 7150 7151 memcpy(header + 1, page_index->page_data, page_index->page_len); 7152 7153 ctl_set_success(ctsio); 7154 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7155 ctsio->be_move_done = ctl_config_move_done; 7156 ctl_datamove((union ctl_io *)ctsio); 7157 return (CTL_RETVAL_COMPLETE); 7158} 7159 7160int 7161ctl_read_capacity(struct ctl_scsiio *ctsio) 7162{ 7163 struct scsi_read_capacity *cdb; 7164 struct scsi_read_capacity_data *data; 7165 struct ctl_lun *lun; 7166 uint32_t lba; 7167 7168 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 7169 7170 cdb = (struct scsi_read_capacity *)ctsio->cdb; 7171 7172 lba = scsi_4btoul(cdb->addr); 7173 if (((cdb->pmi & SRC_PMI) == 0) 7174 && (lba != 0)) { 7175 ctl_set_invalid_field(/*ctsio*/ ctsio, 7176 /*sks_valid*/ 1, 7177 /*command*/ 1, 7178 /*field*/ 2, 7179 /*bit_valid*/ 0, 7180 /*bit*/ 0); 7181 ctl_done((union ctl_io *)ctsio); 7182 return (CTL_RETVAL_COMPLETE); 7183 } 7184 7185 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7186 7187 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7188 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 7189 ctsio->residual = 0; 7190 ctsio->kern_data_len = sizeof(*data); 7191 ctsio->kern_total_len = sizeof(*data); 7192 ctsio->kern_data_resid = 0; 7193 ctsio->kern_rel_offset = 0; 7194 ctsio->kern_sg_entries = 0; 7195 7196 /* 7197 * If the maximum LBA is greater than 0xfffffffe, the user must 7198 * issue a SERVICE ACTION IN (16) command, with the read capacity 7199 * serivce action set. 7200 */ 7201 if (lun->be_lun->maxlba > 0xfffffffe) 7202 scsi_ulto4b(0xffffffff, data->addr); 7203 else 7204 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 7205 7206 /* 7207 * XXX KDM this may not be 512 bytes... 7208 */ 7209 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7210 7211 ctl_set_success(ctsio); 7212 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7213 ctsio->be_move_done = ctl_config_move_done; 7214 ctl_datamove((union ctl_io *)ctsio); 7215 return (CTL_RETVAL_COMPLETE); 7216} 7217 7218int 7219ctl_read_capacity_16(struct ctl_scsiio *ctsio) 7220{ 7221 struct scsi_read_capacity_16 *cdb; 7222 struct scsi_read_capacity_data_long *data; 7223 struct ctl_lun *lun; 7224 uint64_t lba; 7225 uint32_t alloc_len; 7226 7227 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 7228 7229 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 7230 7231 alloc_len = scsi_4btoul(cdb->alloc_len); 7232 lba = scsi_8btou64(cdb->addr); 7233 7234 if ((cdb->reladr & SRC16_PMI) 7235 && (lba != 0)) { 7236 ctl_set_invalid_field(/*ctsio*/ ctsio, 7237 /*sks_valid*/ 1, 7238 /*command*/ 1, 7239 /*field*/ 2, 7240 /*bit_valid*/ 0, 7241 /*bit*/ 0); 7242 ctl_done((union ctl_io *)ctsio); 7243 return (CTL_RETVAL_COMPLETE); 7244 } 7245 7246 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7247 7248 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7249 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 7250 7251 if (sizeof(*data) < alloc_len) { 7252 ctsio->residual = alloc_len - sizeof(*data); 7253 ctsio->kern_data_len = sizeof(*data); 7254 ctsio->kern_total_len = sizeof(*data); 7255 } else { 7256 ctsio->residual = 0; 7257 ctsio->kern_data_len = alloc_len; 7258 ctsio->kern_total_len = alloc_len; 7259 } 7260 ctsio->kern_data_resid = 0; 7261 ctsio->kern_rel_offset = 0; 7262 ctsio->kern_sg_entries = 0; 7263 7264 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7265 /* XXX KDM this may not be 512 bytes... */ 7266 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7267 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7268 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7269 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7270 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 7271 7272 ctl_set_success(ctsio); 7273 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7274 ctsio->be_move_done = ctl_config_move_done; 7275 ctl_datamove((union ctl_io *)ctsio); 7276 return (CTL_RETVAL_COMPLETE); 7277} 7278 7279int 7280ctl_get_lba_status(struct ctl_scsiio *ctsio) 7281{ 7282 struct scsi_get_lba_status *cdb; 7283 struct scsi_get_lba_status_data *data; 7284 struct ctl_lun *lun; 7285 struct ctl_lba_len_flags *lbalen; 7286 uint64_t lba; 7287 uint32_t alloc_len, total_len; 7288 int retval; 7289 7290 CTL_DEBUG_PRINT(("ctl_get_lba_status\n")); 7291 7292 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7293 cdb = (struct scsi_get_lba_status *)ctsio->cdb; 7294 lba = scsi_8btou64(cdb->addr); 7295 alloc_len = scsi_4btoul(cdb->alloc_len); 7296 7297 if (lba > lun->be_lun->maxlba) { 7298 ctl_set_lba_out_of_range(ctsio); 7299 ctl_done((union ctl_io *)ctsio); 7300 return (CTL_RETVAL_COMPLETE); 7301 } 7302 7303 total_len = sizeof(*data) + sizeof(data->descr[0]); 7304 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7305 data = (struct scsi_get_lba_status_data *)ctsio->kern_data_ptr; 7306 7307 if (total_len < alloc_len) { 7308 ctsio->residual = alloc_len - total_len; 7309 ctsio->kern_data_len = total_len; 7310 ctsio->kern_total_len = total_len; 7311 } else { 7312 ctsio->residual = 0; 7313 ctsio->kern_data_len = alloc_len; 7314 ctsio->kern_total_len = alloc_len; 7315 } 7316 ctsio->kern_data_resid = 0; 7317 ctsio->kern_rel_offset = 0; 7318 ctsio->kern_sg_entries = 0; 7319 7320 /* Fill dummy data in case backend can't tell anything. */ 7321 scsi_ulto4b(4 + sizeof(data->descr[0]), data->length); 7322 scsi_u64to8b(lba, data->descr[0].addr); 7323 scsi_ulto4b(MIN(UINT32_MAX, lun->be_lun->maxlba + 1 - lba), 7324 data->descr[0].length); 7325 data->descr[0].status = 0; /* Mapped or unknown. */ 7326 7327 ctl_set_success(ctsio); 7328 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7329 ctsio->be_move_done = ctl_config_move_done; 7330 7331 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 7332 lbalen->lba = lba; 7333 lbalen->len = total_len; 7334 lbalen->flags = 0; 7335 retval = lun->backend->config_read((union ctl_io *)ctsio); 7336 return (CTL_RETVAL_COMPLETE); 7337} 7338 7339int 7340ctl_read_defect(struct ctl_scsiio *ctsio) 7341{ 7342 struct scsi_read_defect_data_10 *ccb10; 7343 struct scsi_read_defect_data_12 *ccb12; 7344 struct scsi_read_defect_data_hdr_10 *data10; 7345 struct scsi_read_defect_data_hdr_12 *data12; 7346 uint32_t alloc_len, data_len; 7347 uint8_t format; 7348 7349 CTL_DEBUG_PRINT(("ctl_read_defect\n")); 7350 7351 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7352 ccb10 = (struct scsi_read_defect_data_10 *)&ctsio->cdb; 7353 format = ccb10->format; 7354 alloc_len = scsi_2btoul(ccb10->alloc_length); 7355 data_len = sizeof(*data10); 7356 } else { 7357 ccb12 = (struct scsi_read_defect_data_12 *)&ctsio->cdb; 7358 format = ccb12->format; 7359 alloc_len = scsi_4btoul(ccb12->alloc_length); 7360 data_len = sizeof(*data12); 7361 } 7362 if (alloc_len == 0) { 7363 ctl_set_success(ctsio); 7364 ctl_done((union ctl_io *)ctsio); 7365 return (CTL_RETVAL_COMPLETE); 7366 } 7367 7368 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 7369 if (data_len < alloc_len) { 7370 ctsio->residual = alloc_len - data_len; 7371 ctsio->kern_data_len = data_len; 7372 ctsio->kern_total_len = data_len; 7373 } else { 7374 ctsio->residual = 0; 7375 ctsio->kern_data_len = alloc_len; 7376 ctsio->kern_total_len = alloc_len; 7377 } 7378 ctsio->kern_data_resid = 0; 7379 ctsio->kern_rel_offset = 0; 7380 ctsio->kern_sg_entries = 0; 7381 7382 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7383 data10 = (struct scsi_read_defect_data_hdr_10 *) 7384 ctsio->kern_data_ptr; 7385 data10->format = format; 7386 scsi_ulto2b(0, data10->length); 7387 } else { 7388 data12 = (struct scsi_read_defect_data_hdr_12 *) 7389 ctsio->kern_data_ptr; 7390 data12->format = format; 7391 scsi_ulto2b(0, data12->generation); 7392 scsi_ulto4b(0, data12->length); 7393 } 7394 7395 ctl_set_success(ctsio); 7396 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7397 ctsio->be_move_done = ctl_config_move_done; 7398 ctl_datamove((union ctl_io *)ctsio); 7399 return (CTL_RETVAL_COMPLETE); 7400} 7401 7402int 7403ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7404{ 7405 struct scsi_maintenance_in *cdb; 7406 int retval; 7407 int alloc_len, ext, total_len = 0, g, p, pc, pg, gs, os; 7408 int num_target_port_groups, num_target_ports; 7409 struct ctl_lun *lun; 7410 struct ctl_softc *softc; 7411 struct ctl_port *port; 7412 struct scsi_target_group_data *rtg_ptr; 7413 struct scsi_target_group_data_extended *rtg_ext_ptr; 7414 struct scsi_target_port_group_descriptor *tpg_desc; 7415 7416 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7417 7418 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7419 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7420 softc = lun->ctl_softc; 7421 7422 retval = CTL_RETVAL_COMPLETE; 7423 7424 switch (cdb->byte2 & STG_PDF_MASK) { 7425 case STG_PDF_LENGTH: 7426 ext = 0; 7427 break; 7428 case STG_PDF_EXTENDED: 7429 ext = 1; 7430 break; 7431 default: 7432 ctl_set_invalid_field(/*ctsio*/ ctsio, 7433 /*sks_valid*/ 1, 7434 /*command*/ 1, 7435 /*field*/ 2, 7436 /*bit_valid*/ 1, 7437 /*bit*/ 5); 7438 ctl_done((union ctl_io *)ctsio); 7439 return(retval); 7440 } 7441 7442 if (softc->is_single) 7443 num_target_port_groups = 1; 7444 else 7445 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7446 num_target_ports = 0; 7447 mtx_lock(&softc->ctl_lock); 7448 STAILQ_FOREACH(port, &softc->port_list, links) { 7449 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7450 continue; 7451 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 7452 continue; 7453 num_target_ports++; 7454 } 7455 mtx_unlock(&softc->ctl_lock); 7456 7457 if (ext) 7458 total_len = sizeof(struct scsi_target_group_data_extended); 7459 else 7460 total_len = sizeof(struct scsi_target_group_data); 7461 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7462 num_target_port_groups + 7463 sizeof(struct scsi_target_port_descriptor) * 7464 num_target_ports * num_target_port_groups; 7465 7466 alloc_len = scsi_4btoul(cdb->length); 7467 7468 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7469 7470 ctsio->kern_sg_entries = 0; 7471 7472 if (total_len < alloc_len) { 7473 ctsio->residual = alloc_len - total_len; 7474 ctsio->kern_data_len = total_len; 7475 ctsio->kern_total_len = total_len; 7476 } else { 7477 ctsio->residual = 0; 7478 ctsio->kern_data_len = alloc_len; 7479 ctsio->kern_total_len = alloc_len; 7480 } 7481 ctsio->kern_data_resid = 0; 7482 ctsio->kern_rel_offset = 0; 7483 7484 if (ext) { 7485 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7486 ctsio->kern_data_ptr; 7487 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7488 rtg_ext_ptr->format_type = 0x10; 7489 rtg_ext_ptr->implicit_transition_time = 0; 7490 tpg_desc = &rtg_ext_ptr->groups[0]; 7491 } else { 7492 rtg_ptr = (struct scsi_target_group_data *) 7493 ctsio->kern_data_ptr; 7494 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7495 tpg_desc = &rtg_ptr->groups[0]; 7496 } 7497 7498 mtx_lock(&softc->ctl_lock); 7499 pg = softc->port_offset / CTL_MAX_PORTS; 7500 if (softc->flags & CTL_FLAG_ACTIVE_SHELF) { 7501 if (softc->ha_mode == CTL_HA_MODE_ACT_STBY) { 7502 gs = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7503 os = TPG_ASYMMETRIC_ACCESS_STANDBY; 7504 } else if (lun->flags & CTL_LUN_PRIMARY_SC) { 7505 gs = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7506 os = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7507 } else { 7508 gs = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7509 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7510 } 7511 } else { 7512 gs = TPG_ASYMMETRIC_ACCESS_STANDBY; 7513 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7514 } 7515 for (g = 0; g < num_target_port_groups; g++) { 7516 tpg_desc->pref_state = (g == pg) ? gs : os; 7517 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP; 7518 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7519 tpg_desc->status = TPG_IMPLICIT; 7520 pc = 0; 7521 STAILQ_FOREACH(port, &softc->port_list, links) { 7522 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7523 continue; 7524 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 7525 continue; 7526 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 7527 scsi_ulto2b(p, tpg_desc->descriptors[pc]. 7528 relative_target_port_identifier); 7529 pc++; 7530 } 7531 tpg_desc->target_port_count = pc; 7532 tpg_desc = (struct scsi_target_port_group_descriptor *) 7533 &tpg_desc->descriptors[pc]; 7534 } 7535 mtx_unlock(&softc->ctl_lock); 7536 7537 ctl_set_success(ctsio); 7538 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7539 ctsio->be_move_done = ctl_config_move_done; 7540 ctl_datamove((union ctl_io *)ctsio); 7541 return(retval); 7542} 7543 7544int 7545ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7546{ 7547 struct ctl_lun *lun; 7548 struct scsi_report_supported_opcodes *cdb; 7549 const struct ctl_cmd_entry *entry, *sentry; 7550 struct scsi_report_supported_opcodes_all *all; 7551 struct scsi_report_supported_opcodes_descr *descr; 7552 struct scsi_report_supported_opcodes_one *one; 7553 int retval; 7554 int alloc_len, total_len; 7555 int opcode, service_action, i, j, num; 7556 7557 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7558 7559 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7560 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7561 7562 retval = CTL_RETVAL_COMPLETE; 7563 7564 opcode = cdb->requested_opcode; 7565 service_action = scsi_2btoul(cdb->requested_service_action); 7566 switch (cdb->options & RSO_OPTIONS_MASK) { 7567 case RSO_OPTIONS_ALL: 7568 num = 0; 7569 for (i = 0; i < 256; i++) { 7570 entry = &ctl_cmd_table[i]; 7571 if (entry->flags & CTL_CMD_FLAG_SA5) { 7572 for (j = 0; j < 32; j++) { 7573 sentry = &((const struct ctl_cmd_entry *) 7574 entry->execute)[j]; 7575 if (ctl_cmd_applicable( 7576 lun->be_lun->lun_type, sentry)) 7577 num++; 7578 } 7579 } else { 7580 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7581 entry)) 7582 num++; 7583 } 7584 } 7585 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7586 num * sizeof(struct scsi_report_supported_opcodes_descr); 7587 break; 7588 case RSO_OPTIONS_OC: 7589 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7590 ctl_set_invalid_field(/*ctsio*/ ctsio, 7591 /*sks_valid*/ 1, 7592 /*command*/ 1, 7593 /*field*/ 2, 7594 /*bit_valid*/ 1, 7595 /*bit*/ 2); 7596 ctl_done((union ctl_io *)ctsio); 7597 return (CTL_RETVAL_COMPLETE); 7598 } 7599 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7600 break; 7601 case RSO_OPTIONS_OC_SA: 7602 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7603 service_action >= 32) { 7604 ctl_set_invalid_field(/*ctsio*/ ctsio, 7605 /*sks_valid*/ 1, 7606 /*command*/ 1, 7607 /*field*/ 2, 7608 /*bit_valid*/ 1, 7609 /*bit*/ 2); 7610 ctl_done((union ctl_io *)ctsio); 7611 return (CTL_RETVAL_COMPLETE); 7612 } 7613 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7614 break; 7615 default: 7616 ctl_set_invalid_field(/*ctsio*/ ctsio, 7617 /*sks_valid*/ 1, 7618 /*command*/ 1, 7619 /*field*/ 2, 7620 /*bit_valid*/ 1, 7621 /*bit*/ 2); 7622 ctl_done((union ctl_io *)ctsio); 7623 return (CTL_RETVAL_COMPLETE); 7624 } 7625 7626 alloc_len = scsi_4btoul(cdb->length); 7627 7628 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7629 7630 ctsio->kern_sg_entries = 0; 7631 7632 if (total_len < alloc_len) { 7633 ctsio->residual = alloc_len - total_len; 7634 ctsio->kern_data_len = total_len; 7635 ctsio->kern_total_len = total_len; 7636 } else { 7637 ctsio->residual = 0; 7638 ctsio->kern_data_len = alloc_len; 7639 ctsio->kern_total_len = alloc_len; 7640 } 7641 ctsio->kern_data_resid = 0; 7642 ctsio->kern_rel_offset = 0; 7643 7644 switch (cdb->options & RSO_OPTIONS_MASK) { 7645 case RSO_OPTIONS_ALL: 7646 all = (struct scsi_report_supported_opcodes_all *) 7647 ctsio->kern_data_ptr; 7648 num = 0; 7649 for (i = 0; i < 256; i++) { 7650 entry = &ctl_cmd_table[i]; 7651 if (entry->flags & CTL_CMD_FLAG_SA5) { 7652 for (j = 0; j < 32; j++) { 7653 sentry = &((const struct ctl_cmd_entry *) 7654 entry->execute)[j]; 7655 if (!ctl_cmd_applicable( 7656 lun->be_lun->lun_type, sentry)) 7657 continue; 7658 descr = &all->descr[num++]; 7659 descr->opcode = i; 7660 scsi_ulto2b(j, descr->service_action); 7661 descr->flags = RSO_SERVACTV; 7662 scsi_ulto2b(sentry->length, 7663 descr->cdb_length); 7664 } 7665 } else { 7666 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7667 entry)) 7668 continue; 7669 descr = &all->descr[num++]; 7670 descr->opcode = i; 7671 scsi_ulto2b(0, descr->service_action); 7672 descr->flags = 0; 7673 scsi_ulto2b(entry->length, descr->cdb_length); 7674 } 7675 } 7676 scsi_ulto4b( 7677 num * sizeof(struct scsi_report_supported_opcodes_descr), 7678 all->length); 7679 break; 7680 case RSO_OPTIONS_OC: 7681 one = (struct scsi_report_supported_opcodes_one *) 7682 ctsio->kern_data_ptr; 7683 entry = &ctl_cmd_table[opcode]; 7684 goto fill_one; 7685 case RSO_OPTIONS_OC_SA: 7686 one = (struct scsi_report_supported_opcodes_one *) 7687 ctsio->kern_data_ptr; 7688 entry = &ctl_cmd_table[opcode]; 7689 entry = &((const struct ctl_cmd_entry *) 7690 entry->execute)[service_action]; 7691fill_one: 7692 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7693 one->support = 3; 7694 scsi_ulto2b(entry->length, one->cdb_length); 7695 one->cdb_usage[0] = opcode; 7696 memcpy(&one->cdb_usage[1], entry->usage, 7697 entry->length - 1); 7698 } else 7699 one->support = 1; 7700 break; 7701 } 7702 7703 ctl_set_success(ctsio); 7704 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7705 ctsio->be_move_done = ctl_config_move_done; 7706 ctl_datamove((union ctl_io *)ctsio); 7707 return(retval); 7708} 7709 7710int 7711ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7712{ 7713 struct scsi_report_supported_tmf *cdb; 7714 struct scsi_report_supported_tmf_data *data; 7715 int retval; 7716 int alloc_len, total_len; 7717 7718 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7719 7720 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7721 7722 retval = CTL_RETVAL_COMPLETE; 7723 7724 total_len = sizeof(struct scsi_report_supported_tmf_data); 7725 alloc_len = scsi_4btoul(cdb->length); 7726 7727 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7728 7729 ctsio->kern_sg_entries = 0; 7730 7731 if (total_len < alloc_len) { 7732 ctsio->residual = alloc_len - total_len; 7733 ctsio->kern_data_len = total_len; 7734 ctsio->kern_total_len = total_len; 7735 } else { 7736 ctsio->residual = 0; 7737 ctsio->kern_data_len = alloc_len; 7738 ctsio->kern_total_len = alloc_len; 7739 } 7740 ctsio->kern_data_resid = 0; 7741 ctsio->kern_rel_offset = 0; 7742 7743 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7744 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_TRS; 7745 data->byte2 |= RST_ITNRS; 7746 7747 ctl_set_success(ctsio); 7748 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7749 ctsio->be_move_done = ctl_config_move_done; 7750 ctl_datamove((union ctl_io *)ctsio); 7751 return (retval); 7752} 7753 7754int 7755ctl_report_timestamp(struct ctl_scsiio *ctsio) 7756{ 7757 struct scsi_report_timestamp *cdb; 7758 struct scsi_report_timestamp_data *data; 7759 struct timeval tv; 7760 int64_t timestamp; 7761 int retval; 7762 int alloc_len, total_len; 7763 7764 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7765 7766 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7767 7768 retval = CTL_RETVAL_COMPLETE; 7769 7770 total_len = sizeof(struct scsi_report_timestamp_data); 7771 alloc_len = scsi_4btoul(cdb->length); 7772 7773 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7774 7775 ctsio->kern_sg_entries = 0; 7776 7777 if (total_len < alloc_len) { 7778 ctsio->residual = alloc_len - total_len; 7779 ctsio->kern_data_len = total_len; 7780 ctsio->kern_total_len = total_len; 7781 } else { 7782 ctsio->residual = 0; 7783 ctsio->kern_data_len = alloc_len; 7784 ctsio->kern_total_len = alloc_len; 7785 } 7786 ctsio->kern_data_resid = 0; 7787 ctsio->kern_rel_offset = 0; 7788 7789 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7790 scsi_ulto2b(sizeof(*data) - 2, data->length); 7791 data->origin = RTS_ORIG_OUTSIDE; 7792 getmicrotime(&tv); 7793 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7794 scsi_ulto4b(timestamp >> 16, data->timestamp); 7795 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7796 7797 ctl_set_success(ctsio); 7798 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7799 ctsio->be_move_done = ctl_config_move_done; 7800 ctl_datamove((union ctl_io *)ctsio); 7801 return (retval); 7802} 7803 7804int 7805ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7806{ 7807 struct scsi_per_res_in *cdb; 7808 int alloc_len, total_len = 0; 7809 /* struct scsi_per_res_in_rsrv in_data; */ 7810 struct ctl_lun *lun; 7811 struct ctl_softc *softc; 7812 uint64_t key; 7813 7814 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7815 7816 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7817 7818 alloc_len = scsi_2btoul(cdb->length); 7819 7820 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7821 softc = lun->ctl_softc; 7822 7823retry: 7824 mtx_lock(&lun->lun_lock); 7825 switch (cdb->action) { 7826 case SPRI_RK: /* read keys */ 7827 total_len = sizeof(struct scsi_per_res_in_keys) + 7828 lun->pr_key_count * 7829 sizeof(struct scsi_per_res_key); 7830 break; 7831 case SPRI_RR: /* read reservation */ 7832 if (lun->flags & CTL_LUN_PR_RESERVED) 7833 total_len = sizeof(struct scsi_per_res_in_rsrv); 7834 else 7835 total_len = sizeof(struct scsi_per_res_in_header); 7836 break; 7837 case SPRI_RC: /* report capabilities */ 7838 total_len = sizeof(struct scsi_per_res_cap); 7839 break; 7840 case SPRI_RS: /* read full status */ 7841 total_len = sizeof(struct scsi_per_res_in_header) + 7842 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7843 lun->pr_key_count; 7844 break; 7845 default: 7846 panic("Invalid PR type %x", cdb->action); 7847 } 7848 mtx_unlock(&lun->lun_lock); 7849 7850 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7851 7852 if (total_len < alloc_len) { 7853 ctsio->residual = alloc_len - total_len; 7854 ctsio->kern_data_len = total_len; 7855 ctsio->kern_total_len = total_len; 7856 } else { 7857 ctsio->residual = 0; 7858 ctsio->kern_data_len = alloc_len; 7859 ctsio->kern_total_len = alloc_len; 7860 } 7861 7862 ctsio->kern_data_resid = 0; 7863 ctsio->kern_rel_offset = 0; 7864 ctsio->kern_sg_entries = 0; 7865 7866 mtx_lock(&lun->lun_lock); 7867 switch (cdb->action) { 7868 case SPRI_RK: { // read keys 7869 struct scsi_per_res_in_keys *res_keys; 7870 int i, key_count; 7871 7872 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7873 7874 /* 7875 * We had to drop the lock to allocate our buffer, which 7876 * leaves time for someone to come in with another 7877 * persistent reservation. (That is unlikely, though, 7878 * since this should be the only persistent reservation 7879 * command active right now.) 7880 */ 7881 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7882 (lun->pr_key_count * 7883 sizeof(struct scsi_per_res_key)))){ 7884 mtx_unlock(&lun->lun_lock); 7885 free(ctsio->kern_data_ptr, M_CTL); 7886 printf("%s: reservation length changed, retrying\n", 7887 __func__); 7888 goto retry; 7889 } 7890 7891 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7892 7893 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7894 lun->pr_key_count, res_keys->header.length); 7895 7896 for (i = 0, key_count = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7897 if ((key = ctl_get_prkey(lun, i)) == 0) 7898 continue; 7899 7900 /* 7901 * We used lun->pr_key_count to calculate the 7902 * size to allocate. If it turns out the number of 7903 * initiators with the registered flag set is 7904 * larger than that (i.e. they haven't been kept in 7905 * sync), we've got a problem. 7906 */ 7907 if (key_count >= lun->pr_key_count) { 7908#ifdef NEEDTOPORT 7909 csevent_log(CSC_CTL | CSC_SHELF_SW | 7910 CTL_PR_ERROR, 7911 csevent_LogType_Fault, 7912 csevent_AlertLevel_Yellow, 7913 csevent_FRU_ShelfController, 7914 csevent_FRU_Firmware, 7915 csevent_FRU_Unknown, 7916 "registered keys %d >= key " 7917 "count %d", key_count, 7918 lun->pr_key_count); 7919#endif 7920 key_count++; 7921 continue; 7922 } 7923 scsi_u64to8b(key, res_keys->keys[key_count].key); 7924 key_count++; 7925 } 7926 break; 7927 } 7928 case SPRI_RR: { // read reservation 7929 struct scsi_per_res_in_rsrv *res; 7930 int tmp_len, header_only; 7931 7932 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7933 7934 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7935 7936 if (lun->flags & CTL_LUN_PR_RESERVED) 7937 { 7938 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7939 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7940 res->header.length); 7941 header_only = 0; 7942 } else { 7943 tmp_len = sizeof(struct scsi_per_res_in_header); 7944 scsi_ulto4b(0, res->header.length); 7945 header_only = 1; 7946 } 7947 7948 /* 7949 * We had to drop the lock to allocate our buffer, which 7950 * leaves time for someone to come in with another 7951 * persistent reservation. (That is unlikely, though, 7952 * since this should be the only persistent reservation 7953 * command active right now.) 7954 */ 7955 if (tmp_len != total_len) { 7956 mtx_unlock(&lun->lun_lock); 7957 free(ctsio->kern_data_ptr, M_CTL); 7958 printf("%s: reservation status changed, retrying\n", 7959 __func__); 7960 goto retry; 7961 } 7962 7963 /* 7964 * No reservation held, so we're done. 7965 */ 7966 if (header_only != 0) 7967 break; 7968 7969 /* 7970 * If the registration is an All Registrants type, the key 7971 * is 0, since it doesn't really matter. 7972 */ 7973 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7974 scsi_u64to8b(ctl_get_prkey(lun, lun->pr_res_idx), 7975 res->data.reservation); 7976 } 7977 res->data.scopetype = lun->res_type; 7978 break; 7979 } 7980 case SPRI_RC: //report capabilities 7981 { 7982 struct scsi_per_res_cap *res_cap; 7983 uint16_t type_mask; 7984 7985 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7986 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7987 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_5; 7988 type_mask = SPRI_TM_WR_EX_AR | 7989 SPRI_TM_EX_AC_RO | 7990 SPRI_TM_WR_EX_RO | 7991 SPRI_TM_EX_AC | 7992 SPRI_TM_WR_EX | 7993 SPRI_TM_EX_AC_AR; 7994 scsi_ulto2b(type_mask, res_cap->type_mask); 7995 break; 7996 } 7997 case SPRI_RS: { // read full status 7998 struct scsi_per_res_in_full *res_status; 7999 struct scsi_per_res_in_full_desc *res_desc; 8000 struct ctl_port *port; 8001 int i, len; 8002 8003 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 8004 8005 /* 8006 * We had to drop the lock to allocate our buffer, which 8007 * leaves time for someone to come in with another 8008 * persistent reservation. (That is unlikely, though, 8009 * since this should be the only persistent reservation 8010 * command active right now.) 8011 */ 8012 if (total_len < (sizeof(struct scsi_per_res_in_header) + 8013 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 8014 lun->pr_key_count)){ 8015 mtx_unlock(&lun->lun_lock); 8016 free(ctsio->kern_data_ptr, M_CTL); 8017 printf("%s: reservation length changed, retrying\n", 8018 __func__); 8019 goto retry; 8020 } 8021 8022 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 8023 8024 res_desc = &res_status->desc[0]; 8025 for (i = 0; i < 2*CTL_MAX_INITIATORS; i++) { 8026 if ((key = ctl_get_prkey(lun, i)) == 0) 8027 continue; 8028 8029 scsi_u64to8b(key, res_desc->res_key.key); 8030 if ((lun->flags & CTL_LUN_PR_RESERVED) && 8031 (lun->pr_res_idx == i || 8032 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 8033 res_desc->flags = SPRI_FULL_R_HOLDER; 8034 res_desc->scopetype = lun->res_type; 8035 } 8036 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 8037 res_desc->rel_trgt_port_id); 8038 len = 0; 8039 port = softc->ctl_ports[ 8040 ctl_port_idx(i / CTL_MAX_INIT_PER_PORT)]; 8041 if (port != NULL) 8042 len = ctl_create_iid(port, 8043 i % CTL_MAX_INIT_PER_PORT, 8044 res_desc->transport_id); 8045 scsi_ulto4b(len, res_desc->additional_length); 8046 res_desc = (struct scsi_per_res_in_full_desc *) 8047 &res_desc->transport_id[len]; 8048 } 8049 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 8050 res_status->header.length); 8051 break; 8052 } 8053 default: 8054 /* 8055 * This is a bug, because we just checked for this above, 8056 * and should have returned an error. 8057 */ 8058 panic("Invalid PR type %x", cdb->action); 8059 break; /* NOTREACHED */ 8060 } 8061 mtx_unlock(&lun->lun_lock); 8062 8063 ctl_set_success(ctsio); 8064 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8065 ctsio->be_move_done = ctl_config_move_done; 8066 ctl_datamove((union ctl_io *)ctsio); 8067 return (CTL_RETVAL_COMPLETE); 8068} 8069 8070static void 8071ctl_est_res_ua(struct ctl_lun *lun, uint32_t residx, ctl_ua_type ua) 8072{ 8073 int off = lun->ctl_softc->persis_offset; 8074 8075 if (residx >= off && residx < off + CTL_MAX_INITIATORS) 8076 ctl_est_ua(lun, residx - off, ua); 8077} 8078 8079/* 8080 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 8081 * it should return. 8082 */ 8083static int 8084ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 8085 uint64_t sa_res_key, uint8_t type, uint32_t residx, 8086 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 8087 struct scsi_per_res_out_parms* param) 8088{ 8089 union ctl_ha_msg persis_io; 8090 int retval, i; 8091 int isc_retval; 8092 8093 retval = 0; 8094 8095 mtx_lock(&lun->lun_lock); 8096 if (sa_res_key == 0) { 8097 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8098 /* validate scope and type */ 8099 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8100 SPR_LU_SCOPE) { 8101 mtx_unlock(&lun->lun_lock); 8102 ctl_set_invalid_field(/*ctsio*/ ctsio, 8103 /*sks_valid*/ 1, 8104 /*command*/ 1, 8105 /*field*/ 2, 8106 /*bit_valid*/ 1, 8107 /*bit*/ 4); 8108 ctl_done((union ctl_io *)ctsio); 8109 return (1); 8110 } 8111 8112 if (type>8 || type==2 || type==4 || type==0) { 8113 mtx_unlock(&lun->lun_lock); 8114 ctl_set_invalid_field(/*ctsio*/ ctsio, 8115 /*sks_valid*/ 1, 8116 /*command*/ 1, 8117 /*field*/ 2, 8118 /*bit_valid*/ 1, 8119 /*bit*/ 0); 8120 ctl_done((union ctl_io *)ctsio); 8121 return (1); 8122 } 8123 8124 /* 8125 * Unregister everybody else and build UA for 8126 * them 8127 */ 8128 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8129 if (i == residx || ctl_get_prkey(lun, i) == 0) 8130 continue; 8131 8132 ctl_clr_prkey(lun, i); 8133 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8134 } 8135 lun->pr_key_count = 1; 8136 lun->res_type = type; 8137 if (lun->res_type != SPR_TYPE_WR_EX_AR 8138 && lun->res_type != SPR_TYPE_EX_AC_AR) 8139 lun->pr_res_idx = residx; 8140 8141 /* send msg to other side */ 8142 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8143 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8144 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8145 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8146 persis_io.pr.pr_info.res_type = type; 8147 memcpy(persis_io.pr.pr_info.sa_res_key, 8148 param->serv_act_res_key, 8149 sizeof(param->serv_act_res_key)); 8150 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8151 &persis_io, sizeof(persis_io), 0)) > 8152 CTL_HA_STATUS_SUCCESS) { 8153 printf("CTL:Persis Out error returned " 8154 "from ctl_ha_msg_send %d\n", 8155 isc_retval); 8156 } 8157 } else { 8158 /* not all registrants */ 8159 mtx_unlock(&lun->lun_lock); 8160 free(ctsio->kern_data_ptr, M_CTL); 8161 ctl_set_invalid_field(ctsio, 8162 /*sks_valid*/ 1, 8163 /*command*/ 0, 8164 /*field*/ 8, 8165 /*bit_valid*/ 0, 8166 /*bit*/ 0); 8167 ctl_done((union ctl_io *)ctsio); 8168 return (1); 8169 } 8170 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8171 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 8172 int found = 0; 8173 8174 if (res_key == sa_res_key) { 8175 /* special case */ 8176 /* 8177 * The spec implies this is not good but doesn't 8178 * say what to do. There are two choices either 8179 * generate a res conflict or check condition 8180 * with illegal field in parameter data. Since 8181 * that is what is done when the sa_res_key is 8182 * zero I'll take that approach since this has 8183 * to do with the sa_res_key. 8184 */ 8185 mtx_unlock(&lun->lun_lock); 8186 free(ctsio->kern_data_ptr, M_CTL); 8187 ctl_set_invalid_field(ctsio, 8188 /*sks_valid*/ 1, 8189 /*command*/ 0, 8190 /*field*/ 8, 8191 /*bit_valid*/ 0, 8192 /*bit*/ 0); 8193 ctl_done((union ctl_io *)ctsio); 8194 return (1); 8195 } 8196 8197 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8198 if (ctl_get_prkey(lun, i) != sa_res_key) 8199 continue; 8200 8201 found = 1; 8202 ctl_clr_prkey(lun, i); 8203 lun->pr_key_count--; 8204 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8205 } 8206 if (!found) { 8207 mtx_unlock(&lun->lun_lock); 8208 free(ctsio->kern_data_ptr, M_CTL); 8209 ctl_set_reservation_conflict(ctsio); 8210 ctl_done((union ctl_io *)ctsio); 8211 return (CTL_RETVAL_COMPLETE); 8212 } 8213 /* send msg to other side */ 8214 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8215 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8216 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8217 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8218 persis_io.pr.pr_info.res_type = type; 8219 memcpy(persis_io.pr.pr_info.sa_res_key, 8220 param->serv_act_res_key, 8221 sizeof(param->serv_act_res_key)); 8222 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8223 &persis_io, sizeof(persis_io), 0)) > 8224 CTL_HA_STATUS_SUCCESS) { 8225 printf("CTL:Persis Out error returned from " 8226 "ctl_ha_msg_send %d\n", isc_retval); 8227 } 8228 } else { 8229 /* Reserved but not all registrants */ 8230 /* sa_res_key is res holder */ 8231 if (sa_res_key == ctl_get_prkey(lun, lun->pr_res_idx)) { 8232 /* validate scope and type */ 8233 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8234 SPR_LU_SCOPE) { 8235 mtx_unlock(&lun->lun_lock); 8236 ctl_set_invalid_field(/*ctsio*/ ctsio, 8237 /*sks_valid*/ 1, 8238 /*command*/ 1, 8239 /*field*/ 2, 8240 /*bit_valid*/ 1, 8241 /*bit*/ 4); 8242 ctl_done((union ctl_io *)ctsio); 8243 return (1); 8244 } 8245 8246 if (type>8 || type==2 || type==4 || type==0) { 8247 mtx_unlock(&lun->lun_lock); 8248 ctl_set_invalid_field(/*ctsio*/ ctsio, 8249 /*sks_valid*/ 1, 8250 /*command*/ 1, 8251 /*field*/ 2, 8252 /*bit_valid*/ 1, 8253 /*bit*/ 0); 8254 ctl_done((union ctl_io *)ctsio); 8255 return (1); 8256 } 8257 8258 /* 8259 * Do the following: 8260 * if sa_res_key != res_key remove all 8261 * registrants w/sa_res_key and generate UA 8262 * for these registrants(Registrations 8263 * Preempted) if it wasn't an exclusive 8264 * reservation generate UA(Reservations 8265 * Preempted) for all other registered nexuses 8266 * if the type has changed. Establish the new 8267 * reservation and holder. If res_key and 8268 * sa_res_key are the same do the above 8269 * except don't unregister the res holder. 8270 */ 8271 8272 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8273 if (i == residx || ctl_get_prkey(lun, i) == 0) 8274 continue; 8275 8276 if (sa_res_key == ctl_get_prkey(lun, i)) { 8277 ctl_clr_prkey(lun, i); 8278 lun->pr_key_count--; 8279 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8280 } else if (type != lun->res_type 8281 && (lun->res_type == SPR_TYPE_WR_EX_RO 8282 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 8283 ctl_est_res_ua(lun, i, CTL_UA_RES_RELEASE); 8284 } 8285 } 8286 lun->res_type = type; 8287 if (lun->res_type != SPR_TYPE_WR_EX_AR 8288 && lun->res_type != SPR_TYPE_EX_AC_AR) 8289 lun->pr_res_idx = residx; 8290 else 8291 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8292 8293 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8294 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8295 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8296 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8297 persis_io.pr.pr_info.res_type = type; 8298 memcpy(persis_io.pr.pr_info.sa_res_key, 8299 param->serv_act_res_key, 8300 sizeof(param->serv_act_res_key)); 8301 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8302 &persis_io, sizeof(persis_io), 0)) > 8303 CTL_HA_STATUS_SUCCESS) { 8304 printf("CTL:Persis Out error returned " 8305 "from ctl_ha_msg_send %d\n", 8306 isc_retval); 8307 } 8308 } else { 8309 /* 8310 * sa_res_key is not the res holder just 8311 * remove registrants 8312 */ 8313 int found=0; 8314 8315 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8316 if (sa_res_key != ctl_get_prkey(lun, i)) 8317 continue; 8318 8319 found = 1; 8320 ctl_clr_prkey(lun, i); 8321 lun->pr_key_count--; 8322 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8323 } 8324 8325 if (!found) { 8326 mtx_unlock(&lun->lun_lock); 8327 free(ctsio->kern_data_ptr, M_CTL); 8328 ctl_set_reservation_conflict(ctsio); 8329 ctl_done((union ctl_io *)ctsio); 8330 return (1); 8331 } 8332 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8333 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8334 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8335 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8336 persis_io.pr.pr_info.res_type = type; 8337 memcpy(persis_io.pr.pr_info.sa_res_key, 8338 param->serv_act_res_key, 8339 sizeof(param->serv_act_res_key)); 8340 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8341 &persis_io, sizeof(persis_io), 0)) > 8342 CTL_HA_STATUS_SUCCESS) { 8343 printf("CTL:Persis Out error returned " 8344 "from ctl_ha_msg_send %d\n", 8345 isc_retval); 8346 } 8347 } 8348 } 8349 8350 lun->PRGeneration++; 8351 mtx_unlock(&lun->lun_lock); 8352 8353 return (retval); 8354} 8355 8356static void 8357ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8358{ 8359 uint64_t sa_res_key; 8360 int i; 8361 8362 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8363 8364 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8365 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8366 || sa_res_key != ctl_get_prkey(lun, lun->pr_res_idx)) { 8367 if (sa_res_key == 0) { 8368 /* 8369 * Unregister everybody else and build UA for 8370 * them 8371 */ 8372 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8373 if (i == msg->pr.pr_info.residx || 8374 ctl_get_prkey(lun, i) == 0) 8375 continue; 8376 8377 ctl_clr_prkey(lun, i); 8378 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8379 } 8380 8381 lun->pr_key_count = 1; 8382 lun->res_type = msg->pr.pr_info.res_type; 8383 if (lun->res_type != SPR_TYPE_WR_EX_AR 8384 && lun->res_type != SPR_TYPE_EX_AC_AR) 8385 lun->pr_res_idx = msg->pr.pr_info.residx; 8386 } else { 8387 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8388 if (sa_res_key == ctl_get_prkey(lun, i)) 8389 continue; 8390 8391 ctl_clr_prkey(lun, i); 8392 lun->pr_key_count--; 8393 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8394 } 8395 } 8396 } else { 8397 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8398 if (i == msg->pr.pr_info.residx || 8399 ctl_get_prkey(lun, i) == 0) 8400 continue; 8401 8402 if (sa_res_key == ctl_get_prkey(lun, i)) { 8403 ctl_clr_prkey(lun, i); 8404 lun->pr_key_count--; 8405 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8406 } else if (msg->pr.pr_info.res_type != lun->res_type 8407 && (lun->res_type == SPR_TYPE_WR_EX_RO 8408 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8409 ctl_est_res_ua(lun, i, CTL_UA_RES_RELEASE); 8410 } 8411 } 8412 lun->res_type = msg->pr.pr_info.res_type; 8413 if (lun->res_type != SPR_TYPE_WR_EX_AR 8414 && lun->res_type != SPR_TYPE_EX_AC_AR) 8415 lun->pr_res_idx = msg->pr.pr_info.residx; 8416 else 8417 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8418 } 8419 lun->PRGeneration++; 8420 8421} 8422 8423 8424int 8425ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8426{ 8427 int retval; 8428 int isc_retval; 8429 u_int32_t param_len; 8430 struct scsi_per_res_out *cdb; 8431 struct ctl_lun *lun; 8432 struct scsi_per_res_out_parms* param; 8433 struct ctl_softc *softc; 8434 uint32_t residx; 8435 uint64_t res_key, sa_res_key, key; 8436 uint8_t type; 8437 union ctl_ha_msg persis_io; 8438 int i; 8439 8440 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8441 8442 retval = CTL_RETVAL_COMPLETE; 8443 8444 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8445 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8446 softc = lun->ctl_softc; 8447 8448 /* 8449 * We only support whole-LUN scope. The scope & type are ignored for 8450 * register, register and ignore existing key and clear. 8451 * We sometimes ignore scope and type on preempts too!! 8452 * Verify reservation type here as well. 8453 */ 8454 type = cdb->scope_type & SPR_TYPE_MASK; 8455 if ((cdb->action == SPRO_RESERVE) 8456 || (cdb->action == SPRO_RELEASE)) { 8457 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8458 ctl_set_invalid_field(/*ctsio*/ ctsio, 8459 /*sks_valid*/ 1, 8460 /*command*/ 1, 8461 /*field*/ 2, 8462 /*bit_valid*/ 1, 8463 /*bit*/ 4); 8464 ctl_done((union ctl_io *)ctsio); 8465 return (CTL_RETVAL_COMPLETE); 8466 } 8467 8468 if (type>8 || type==2 || type==4 || type==0) { 8469 ctl_set_invalid_field(/*ctsio*/ ctsio, 8470 /*sks_valid*/ 1, 8471 /*command*/ 1, 8472 /*field*/ 2, 8473 /*bit_valid*/ 1, 8474 /*bit*/ 0); 8475 ctl_done((union ctl_io *)ctsio); 8476 return (CTL_RETVAL_COMPLETE); 8477 } 8478 } 8479 8480 param_len = scsi_4btoul(cdb->length); 8481 8482 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8483 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8484 ctsio->kern_data_len = param_len; 8485 ctsio->kern_total_len = param_len; 8486 ctsio->kern_data_resid = 0; 8487 ctsio->kern_rel_offset = 0; 8488 ctsio->kern_sg_entries = 0; 8489 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8490 ctsio->be_move_done = ctl_config_move_done; 8491 ctl_datamove((union ctl_io *)ctsio); 8492 8493 return (CTL_RETVAL_COMPLETE); 8494 } 8495 8496 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8497 8498 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8499 res_key = scsi_8btou64(param->res_key.key); 8500 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8501 8502 /* 8503 * Validate the reservation key here except for SPRO_REG_IGNO 8504 * This must be done for all other service actions 8505 */ 8506 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8507 mtx_lock(&lun->lun_lock); 8508 if ((key = ctl_get_prkey(lun, residx)) != 0) { 8509 if (res_key != key) { 8510 /* 8511 * The current key passed in doesn't match 8512 * the one the initiator previously 8513 * registered. 8514 */ 8515 mtx_unlock(&lun->lun_lock); 8516 free(ctsio->kern_data_ptr, M_CTL); 8517 ctl_set_reservation_conflict(ctsio); 8518 ctl_done((union ctl_io *)ctsio); 8519 return (CTL_RETVAL_COMPLETE); 8520 } 8521 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8522 /* 8523 * We are not registered 8524 */ 8525 mtx_unlock(&lun->lun_lock); 8526 free(ctsio->kern_data_ptr, M_CTL); 8527 ctl_set_reservation_conflict(ctsio); 8528 ctl_done((union ctl_io *)ctsio); 8529 return (CTL_RETVAL_COMPLETE); 8530 } else if (res_key != 0) { 8531 /* 8532 * We are not registered and trying to register but 8533 * the register key isn't zero. 8534 */ 8535 mtx_unlock(&lun->lun_lock); 8536 free(ctsio->kern_data_ptr, M_CTL); 8537 ctl_set_reservation_conflict(ctsio); 8538 ctl_done((union ctl_io *)ctsio); 8539 return (CTL_RETVAL_COMPLETE); 8540 } 8541 mtx_unlock(&lun->lun_lock); 8542 } 8543 8544 switch (cdb->action & SPRO_ACTION_MASK) { 8545 case SPRO_REGISTER: 8546 case SPRO_REG_IGNO: { 8547 8548#if 0 8549 printf("Registration received\n"); 8550#endif 8551 8552 /* 8553 * We don't support any of these options, as we report in 8554 * the read capabilities request (see 8555 * ctl_persistent_reserve_in(), above). 8556 */ 8557 if ((param->flags & SPR_SPEC_I_PT) 8558 || (param->flags & SPR_ALL_TG_PT) 8559 || (param->flags & SPR_APTPL)) { 8560 int bit_ptr; 8561 8562 if (param->flags & SPR_APTPL) 8563 bit_ptr = 0; 8564 else if (param->flags & SPR_ALL_TG_PT) 8565 bit_ptr = 2; 8566 else /* SPR_SPEC_I_PT */ 8567 bit_ptr = 3; 8568 8569 free(ctsio->kern_data_ptr, M_CTL); 8570 ctl_set_invalid_field(ctsio, 8571 /*sks_valid*/ 1, 8572 /*command*/ 0, 8573 /*field*/ 20, 8574 /*bit_valid*/ 1, 8575 /*bit*/ bit_ptr); 8576 ctl_done((union ctl_io *)ctsio); 8577 return (CTL_RETVAL_COMPLETE); 8578 } 8579 8580 mtx_lock(&lun->lun_lock); 8581 8582 /* 8583 * The initiator wants to clear the 8584 * key/unregister. 8585 */ 8586 if (sa_res_key == 0) { 8587 if ((res_key == 0 8588 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8589 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8590 && ctl_get_prkey(lun, residx) == 0)) { 8591 mtx_unlock(&lun->lun_lock); 8592 goto done; 8593 } 8594 8595 ctl_clr_prkey(lun, residx); 8596 lun->pr_key_count--; 8597 8598 if (residx == lun->pr_res_idx) { 8599 lun->flags &= ~CTL_LUN_PR_RESERVED; 8600 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8601 8602 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8603 || lun->res_type == SPR_TYPE_EX_AC_RO) 8604 && lun->pr_key_count) { 8605 /* 8606 * If the reservation is a registrants 8607 * only type we need to generate a UA 8608 * for other registered inits. The 8609 * sense code should be RESERVATIONS 8610 * RELEASED 8611 */ 8612 8613 for (i = 0; i < CTL_MAX_INITIATORS;i++){ 8614 if (ctl_get_prkey(lun, i + 8615 softc->persis_offset) == 0) 8616 continue; 8617 ctl_est_ua(lun, i, 8618 CTL_UA_RES_RELEASE); 8619 } 8620 } 8621 lun->res_type = 0; 8622 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8623 if (lun->pr_key_count==0) { 8624 lun->flags &= ~CTL_LUN_PR_RESERVED; 8625 lun->res_type = 0; 8626 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8627 } 8628 } 8629 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8630 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8631 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8632 persis_io.pr.pr_info.residx = residx; 8633 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8634 &persis_io, sizeof(persis_io), 0 )) > 8635 CTL_HA_STATUS_SUCCESS) { 8636 printf("CTL:Persis Out error returned from " 8637 "ctl_ha_msg_send %d\n", isc_retval); 8638 } 8639 } else /* sa_res_key != 0 */ { 8640 8641 /* 8642 * If we aren't registered currently then increment 8643 * the key count and set the registered flag. 8644 */ 8645 ctl_alloc_prkey(lun, residx); 8646 if (ctl_get_prkey(lun, residx) == 0) 8647 lun->pr_key_count++; 8648 ctl_set_prkey(lun, residx, sa_res_key); 8649 8650 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8651 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8652 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8653 persis_io.pr.pr_info.residx = residx; 8654 memcpy(persis_io.pr.pr_info.sa_res_key, 8655 param->serv_act_res_key, 8656 sizeof(param->serv_act_res_key)); 8657 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8658 &persis_io, sizeof(persis_io), 0)) > 8659 CTL_HA_STATUS_SUCCESS) { 8660 printf("CTL:Persis Out error returned from " 8661 "ctl_ha_msg_send %d\n", isc_retval); 8662 } 8663 } 8664 lun->PRGeneration++; 8665 mtx_unlock(&lun->lun_lock); 8666 8667 break; 8668 } 8669 case SPRO_RESERVE: 8670#if 0 8671 printf("Reserve executed type %d\n", type); 8672#endif 8673 mtx_lock(&lun->lun_lock); 8674 if (lun->flags & CTL_LUN_PR_RESERVED) { 8675 /* 8676 * if this isn't the reservation holder and it's 8677 * not a "all registrants" type or if the type is 8678 * different then we have a conflict 8679 */ 8680 if ((lun->pr_res_idx != residx 8681 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8682 || lun->res_type != type) { 8683 mtx_unlock(&lun->lun_lock); 8684 free(ctsio->kern_data_ptr, M_CTL); 8685 ctl_set_reservation_conflict(ctsio); 8686 ctl_done((union ctl_io *)ctsio); 8687 return (CTL_RETVAL_COMPLETE); 8688 } 8689 mtx_unlock(&lun->lun_lock); 8690 } else /* create a reservation */ { 8691 /* 8692 * If it's not an "all registrants" type record 8693 * reservation holder 8694 */ 8695 if (type != SPR_TYPE_WR_EX_AR 8696 && type != SPR_TYPE_EX_AC_AR) 8697 lun->pr_res_idx = residx; /* Res holder */ 8698 else 8699 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8700 8701 lun->flags |= CTL_LUN_PR_RESERVED; 8702 lun->res_type = type; 8703 8704 mtx_unlock(&lun->lun_lock); 8705 8706 /* send msg to other side */ 8707 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8708 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8709 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8710 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8711 persis_io.pr.pr_info.res_type = type; 8712 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8713 &persis_io, sizeof(persis_io), 0)) > 8714 CTL_HA_STATUS_SUCCESS) { 8715 printf("CTL:Persis Out error returned from " 8716 "ctl_ha_msg_send %d\n", isc_retval); 8717 } 8718 } 8719 break; 8720 8721 case SPRO_RELEASE: 8722 mtx_lock(&lun->lun_lock); 8723 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8724 /* No reservation exists return good status */ 8725 mtx_unlock(&lun->lun_lock); 8726 goto done; 8727 } 8728 /* 8729 * Is this nexus a reservation holder? 8730 */ 8731 if (lun->pr_res_idx != residx 8732 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8733 /* 8734 * not a res holder return good status but 8735 * do nothing 8736 */ 8737 mtx_unlock(&lun->lun_lock); 8738 goto done; 8739 } 8740 8741 if (lun->res_type != type) { 8742 mtx_unlock(&lun->lun_lock); 8743 free(ctsio->kern_data_ptr, M_CTL); 8744 ctl_set_illegal_pr_release(ctsio); 8745 ctl_done((union ctl_io *)ctsio); 8746 return (CTL_RETVAL_COMPLETE); 8747 } 8748 8749 /* okay to release */ 8750 lun->flags &= ~CTL_LUN_PR_RESERVED; 8751 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8752 lun->res_type = 0; 8753 8754 /* 8755 * if this isn't an exclusive access 8756 * res generate UA for all other 8757 * registrants. 8758 */ 8759 if (type != SPR_TYPE_EX_AC 8760 && type != SPR_TYPE_WR_EX) { 8761 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8762 if (i == residx || 8763 ctl_get_prkey(lun, 8764 i + softc->persis_offset) == 0) 8765 continue; 8766 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8767 } 8768 } 8769 mtx_unlock(&lun->lun_lock); 8770 /* Send msg to other side */ 8771 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8772 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8773 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8774 if ((isc_retval=ctl_ha_msg_send( CTL_HA_CHAN_CTL, &persis_io, 8775 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8776 printf("CTL:Persis Out error returned from " 8777 "ctl_ha_msg_send %d\n", isc_retval); 8778 } 8779 break; 8780 8781 case SPRO_CLEAR: 8782 /* send msg to other side */ 8783 8784 mtx_lock(&lun->lun_lock); 8785 lun->flags &= ~CTL_LUN_PR_RESERVED; 8786 lun->res_type = 0; 8787 lun->pr_key_count = 0; 8788 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8789 8790 ctl_clr_prkey(lun, residx); 8791 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) 8792 if (ctl_get_prkey(lun, i) != 0) { 8793 ctl_clr_prkey(lun, i); 8794 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8795 } 8796 lun->PRGeneration++; 8797 mtx_unlock(&lun->lun_lock); 8798 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8799 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8800 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8801 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8802 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8803 printf("CTL:Persis Out error returned from " 8804 "ctl_ha_msg_send %d\n", isc_retval); 8805 } 8806 break; 8807 8808 case SPRO_PREEMPT: 8809 case SPRO_PRE_ABO: { 8810 int nretval; 8811 8812 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8813 residx, ctsio, cdb, param); 8814 if (nretval != 0) 8815 return (CTL_RETVAL_COMPLETE); 8816 break; 8817 } 8818 default: 8819 panic("Invalid PR type %x", cdb->action); 8820 } 8821 8822done: 8823 free(ctsio->kern_data_ptr, M_CTL); 8824 ctl_set_success(ctsio); 8825 ctl_done((union ctl_io *)ctsio); 8826 8827 return (retval); 8828} 8829 8830/* 8831 * This routine is for handling a message from the other SC pertaining to 8832 * persistent reserve out. All the error checking will have been done 8833 * so only perorming the action need be done here to keep the two 8834 * in sync. 8835 */ 8836static void 8837ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8838{ 8839 struct ctl_lun *lun; 8840 struct ctl_softc *softc; 8841 int i; 8842 uint32_t targ_lun; 8843 8844 softc = control_softc; 8845 8846 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8847 lun = softc->ctl_luns[targ_lun]; 8848 mtx_lock(&lun->lun_lock); 8849 switch(msg->pr.pr_info.action) { 8850 case CTL_PR_REG_KEY: 8851 ctl_alloc_prkey(lun, msg->pr.pr_info.residx); 8852 if (ctl_get_prkey(lun, msg->pr.pr_info.residx) == 0) 8853 lun->pr_key_count++; 8854 ctl_set_prkey(lun, msg->pr.pr_info.residx, 8855 scsi_8btou64(msg->pr.pr_info.sa_res_key)); 8856 lun->PRGeneration++; 8857 break; 8858 8859 case CTL_PR_UNREG_KEY: 8860 ctl_clr_prkey(lun, msg->pr.pr_info.residx); 8861 lun->pr_key_count--; 8862 8863 /* XXX Need to see if the reservation has been released */ 8864 /* if so do we need to generate UA? */ 8865 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8866 lun->flags &= ~CTL_LUN_PR_RESERVED; 8867 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8868 8869 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8870 || lun->res_type == SPR_TYPE_EX_AC_RO) 8871 && lun->pr_key_count) { 8872 /* 8873 * If the reservation is a registrants 8874 * only type we need to generate a UA 8875 * for other registered inits. The 8876 * sense code should be RESERVATIONS 8877 * RELEASED 8878 */ 8879 8880 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8881 if (ctl_get_prkey(lun, i + 8882 softc->persis_offset) == 0) 8883 continue; 8884 8885 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8886 } 8887 } 8888 lun->res_type = 0; 8889 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8890 if (lun->pr_key_count==0) { 8891 lun->flags &= ~CTL_LUN_PR_RESERVED; 8892 lun->res_type = 0; 8893 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8894 } 8895 } 8896 lun->PRGeneration++; 8897 break; 8898 8899 case CTL_PR_RESERVE: 8900 lun->flags |= CTL_LUN_PR_RESERVED; 8901 lun->res_type = msg->pr.pr_info.res_type; 8902 lun->pr_res_idx = msg->pr.pr_info.residx; 8903 8904 break; 8905 8906 case CTL_PR_RELEASE: 8907 /* 8908 * if this isn't an exclusive access res generate UA for all 8909 * other registrants. 8910 */ 8911 if (lun->res_type != SPR_TYPE_EX_AC 8912 && lun->res_type != SPR_TYPE_WR_EX) { 8913 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8914 if (ctl_get_prkey(lun, i + softc->persis_offset) != 0) 8915 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8916 } 8917 8918 lun->flags &= ~CTL_LUN_PR_RESERVED; 8919 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8920 lun->res_type = 0; 8921 break; 8922 8923 case CTL_PR_PREEMPT: 8924 ctl_pro_preempt_other(lun, msg); 8925 break; 8926 case CTL_PR_CLEAR: 8927 lun->flags &= ~CTL_LUN_PR_RESERVED; 8928 lun->res_type = 0; 8929 lun->pr_key_count = 0; 8930 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8931 8932 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8933 if (ctl_get_prkey(lun, i) == 0) 8934 continue; 8935 ctl_clr_prkey(lun, i); 8936 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8937 } 8938 lun->PRGeneration++; 8939 break; 8940 } 8941 8942 mtx_unlock(&lun->lun_lock); 8943} 8944 8945int 8946ctl_read_write(struct ctl_scsiio *ctsio) 8947{ 8948 struct ctl_lun *lun; 8949 struct ctl_lba_len_flags *lbalen; 8950 uint64_t lba; 8951 uint32_t num_blocks; 8952 int flags, retval; 8953 int isread; 8954 8955 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8956 8957 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8958 8959 flags = 0; 8960 retval = CTL_RETVAL_COMPLETE; 8961 8962 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8963 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8964 switch (ctsio->cdb[0]) { 8965 case READ_6: 8966 case WRITE_6: { 8967 struct scsi_rw_6 *cdb; 8968 8969 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8970 8971 lba = scsi_3btoul(cdb->addr); 8972 /* only 5 bits are valid in the most significant address byte */ 8973 lba &= 0x1fffff; 8974 num_blocks = cdb->length; 8975 /* 8976 * This is correct according to SBC-2. 8977 */ 8978 if (num_blocks == 0) 8979 num_blocks = 256; 8980 break; 8981 } 8982 case READ_10: 8983 case WRITE_10: { 8984 struct scsi_rw_10 *cdb; 8985 8986 cdb = (struct scsi_rw_10 *)ctsio->cdb; 8987 if (cdb->byte2 & SRW10_FUA) 8988 flags |= CTL_LLF_FUA; 8989 if (cdb->byte2 & SRW10_DPO) 8990 flags |= CTL_LLF_DPO; 8991 lba = scsi_4btoul(cdb->addr); 8992 num_blocks = scsi_2btoul(cdb->length); 8993 break; 8994 } 8995 case WRITE_VERIFY_10: { 8996 struct scsi_write_verify_10 *cdb; 8997 8998 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 8999 flags |= CTL_LLF_FUA; 9000 if (cdb->byte2 & SWV_DPO) 9001 flags |= CTL_LLF_DPO; 9002 lba = scsi_4btoul(cdb->addr); 9003 num_blocks = scsi_2btoul(cdb->length); 9004 break; 9005 } 9006 case READ_12: 9007 case WRITE_12: { 9008 struct scsi_rw_12 *cdb; 9009 9010 cdb = (struct scsi_rw_12 *)ctsio->cdb; 9011 if (cdb->byte2 & SRW12_FUA) 9012 flags |= CTL_LLF_FUA; 9013 if (cdb->byte2 & SRW12_DPO) 9014 flags |= CTL_LLF_DPO; 9015 lba = scsi_4btoul(cdb->addr); 9016 num_blocks = scsi_4btoul(cdb->length); 9017 break; 9018 } 9019 case WRITE_VERIFY_12: { 9020 struct scsi_write_verify_12 *cdb; 9021 9022 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 9023 flags |= CTL_LLF_FUA; 9024 if (cdb->byte2 & SWV_DPO) 9025 flags |= CTL_LLF_DPO; 9026 lba = scsi_4btoul(cdb->addr); 9027 num_blocks = scsi_4btoul(cdb->length); 9028 break; 9029 } 9030 case READ_16: 9031 case WRITE_16: { 9032 struct scsi_rw_16 *cdb; 9033 9034 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9035 if (cdb->byte2 & SRW12_FUA) 9036 flags |= CTL_LLF_FUA; 9037 if (cdb->byte2 & SRW12_DPO) 9038 flags |= CTL_LLF_DPO; 9039 lba = scsi_8btou64(cdb->addr); 9040 num_blocks = scsi_4btoul(cdb->length); 9041 break; 9042 } 9043 case WRITE_ATOMIC_16: { 9044 struct scsi_rw_16 *cdb; 9045 9046 if (lun->be_lun->atomicblock == 0) { 9047 ctl_set_invalid_opcode(ctsio); 9048 ctl_done((union ctl_io *)ctsio); 9049 return (CTL_RETVAL_COMPLETE); 9050 } 9051 9052 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9053 if (cdb->byte2 & SRW12_FUA) 9054 flags |= CTL_LLF_FUA; 9055 if (cdb->byte2 & SRW12_DPO) 9056 flags |= CTL_LLF_DPO; 9057 lba = scsi_8btou64(cdb->addr); 9058 num_blocks = scsi_4btoul(cdb->length); 9059 if (num_blocks > lun->be_lun->atomicblock) { 9060 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 9061 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 9062 /*bit*/ 0); 9063 ctl_done((union ctl_io *)ctsio); 9064 return (CTL_RETVAL_COMPLETE); 9065 } 9066 break; 9067 } 9068 case WRITE_VERIFY_16: { 9069 struct scsi_write_verify_16 *cdb; 9070 9071 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 9072 flags |= CTL_LLF_FUA; 9073 if (cdb->byte2 & SWV_DPO) 9074 flags |= CTL_LLF_DPO; 9075 lba = scsi_8btou64(cdb->addr); 9076 num_blocks = scsi_4btoul(cdb->length); 9077 break; 9078 } 9079 default: 9080 /* 9081 * We got a command we don't support. This shouldn't 9082 * happen, commands should be filtered out above us. 9083 */ 9084 ctl_set_invalid_opcode(ctsio); 9085 ctl_done((union ctl_io *)ctsio); 9086 9087 return (CTL_RETVAL_COMPLETE); 9088 break; /* NOTREACHED */ 9089 } 9090 9091 /* 9092 * The first check is to make sure we're in bounds, the second 9093 * check is to catch wrap-around problems. If the lba + num blocks 9094 * is less than the lba, then we've wrapped around and the block 9095 * range is invalid anyway. 9096 */ 9097 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9098 || ((lba + num_blocks) < lba)) { 9099 ctl_set_lba_out_of_range(ctsio); 9100 ctl_done((union ctl_io *)ctsio); 9101 return (CTL_RETVAL_COMPLETE); 9102 } 9103 9104 /* 9105 * According to SBC-3, a transfer length of 0 is not an error. 9106 * Note that this cannot happen with WRITE(6) or READ(6), since 0 9107 * translates to 256 blocks for those commands. 9108 */ 9109 if (num_blocks == 0) { 9110 ctl_set_success(ctsio); 9111 ctl_done((union ctl_io *)ctsio); 9112 return (CTL_RETVAL_COMPLETE); 9113 } 9114 9115 /* Set FUA and/or DPO if caches are disabled. */ 9116 if (isread) { 9117 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9118 SCP_RCD) != 0) 9119 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 9120 } else { 9121 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9122 SCP_WCE) == 0) 9123 flags |= CTL_LLF_FUA; 9124 } 9125 9126 lbalen = (struct ctl_lba_len_flags *) 9127 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9128 lbalen->lba = lba; 9129 lbalen->len = num_blocks; 9130 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 9131 9132 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9133 ctsio->kern_rel_offset = 0; 9134 9135 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 9136 9137 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9138 9139 return (retval); 9140} 9141 9142static int 9143ctl_cnw_cont(union ctl_io *io) 9144{ 9145 struct ctl_scsiio *ctsio; 9146 struct ctl_lun *lun; 9147 struct ctl_lba_len_flags *lbalen; 9148 int retval; 9149 9150 ctsio = &io->scsiio; 9151 ctsio->io_hdr.status = CTL_STATUS_NONE; 9152 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 9153 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9154 lbalen = (struct ctl_lba_len_flags *) 9155 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9156 lbalen->flags &= ~CTL_LLF_COMPARE; 9157 lbalen->flags |= CTL_LLF_WRITE; 9158 9159 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 9160 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9161 return (retval); 9162} 9163 9164int 9165ctl_cnw(struct ctl_scsiio *ctsio) 9166{ 9167 struct ctl_lun *lun; 9168 struct ctl_lba_len_flags *lbalen; 9169 uint64_t lba; 9170 uint32_t num_blocks; 9171 int flags, retval; 9172 9173 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9174 9175 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 9176 9177 flags = 0; 9178 retval = CTL_RETVAL_COMPLETE; 9179 9180 switch (ctsio->cdb[0]) { 9181 case COMPARE_AND_WRITE: { 9182 struct scsi_compare_and_write *cdb; 9183 9184 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 9185 if (cdb->byte2 & SRW10_FUA) 9186 flags |= CTL_LLF_FUA; 9187 if (cdb->byte2 & SRW10_DPO) 9188 flags |= CTL_LLF_DPO; 9189 lba = scsi_8btou64(cdb->addr); 9190 num_blocks = cdb->length; 9191 break; 9192 } 9193 default: 9194 /* 9195 * We got a command we don't support. This shouldn't 9196 * happen, commands should be filtered out above us. 9197 */ 9198 ctl_set_invalid_opcode(ctsio); 9199 ctl_done((union ctl_io *)ctsio); 9200 9201 return (CTL_RETVAL_COMPLETE); 9202 break; /* NOTREACHED */ 9203 } 9204 9205 /* 9206 * The first check is to make sure we're in bounds, the second 9207 * check is to catch wrap-around problems. If the lba + num blocks 9208 * is less than the lba, then we've wrapped around and the block 9209 * range is invalid anyway. 9210 */ 9211 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9212 || ((lba + num_blocks) < lba)) { 9213 ctl_set_lba_out_of_range(ctsio); 9214 ctl_done((union ctl_io *)ctsio); 9215 return (CTL_RETVAL_COMPLETE); 9216 } 9217 9218 /* 9219 * According to SBC-3, a transfer length of 0 is not an error. 9220 */ 9221 if (num_blocks == 0) { 9222 ctl_set_success(ctsio); 9223 ctl_done((union ctl_io *)ctsio); 9224 return (CTL_RETVAL_COMPLETE); 9225 } 9226 9227 /* Set FUA if write cache is disabled. */ 9228 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9229 SCP_WCE) == 0) 9230 flags |= CTL_LLF_FUA; 9231 9232 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 9233 ctsio->kern_rel_offset = 0; 9234 9235 /* 9236 * Set the IO_CONT flag, so that if this I/O gets passed to 9237 * ctl_data_submit_done(), it'll get passed back to 9238 * ctl_ctl_cnw_cont() for further processing. 9239 */ 9240 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 9241 ctsio->io_cont = ctl_cnw_cont; 9242 9243 lbalen = (struct ctl_lba_len_flags *) 9244 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9245 lbalen->lba = lba; 9246 lbalen->len = num_blocks; 9247 lbalen->flags = CTL_LLF_COMPARE | flags; 9248 9249 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 9250 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9251 return (retval); 9252} 9253 9254int 9255ctl_verify(struct ctl_scsiio *ctsio) 9256{ 9257 struct ctl_lun *lun; 9258 struct ctl_lba_len_flags *lbalen; 9259 uint64_t lba; 9260 uint32_t num_blocks; 9261 int bytchk, flags; 9262 int retval; 9263 9264 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9265 9266 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 9267 9268 bytchk = 0; 9269 flags = CTL_LLF_FUA; 9270 retval = CTL_RETVAL_COMPLETE; 9271 9272 switch (ctsio->cdb[0]) { 9273 case VERIFY_10: { 9274 struct scsi_verify_10 *cdb; 9275 9276 cdb = (struct scsi_verify_10 *)ctsio->cdb; 9277 if (cdb->byte2 & SVFY_BYTCHK) 9278 bytchk = 1; 9279 if (cdb->byte2 & SVFY_DPO) 9280 flags |= CTL_LLF_DPO; 9281 lba = scsi_4btoul(cdb->addr); 9282 num_blocks = scsi_2btoul(cdb->length); 9283 break; 9284 } 9285 case VERIFY_12: { 9286 struct scsi_verify_12 *cdb; 9287 9288 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9289 if (cdb->byte2 & SVFY_BYTCHK) 9290 bytchk = 1; 9291 if (cdb->byte2 & SVFY_DPO) 9292 flags |= CTL_LLF_DPO; 9293 lba = scsi_4btoul(cdb->addr); 9294 num_blocks = scsi_4btoul(cdb->length); 9295 break; 9296 } 9297 case VERIFY_16: { 9298 struct scsi_rw_16 *cdb; 9299 9300 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9301 if (cdb->byte2 & SVFY_BYTCHK) 9302 bytchk = 1; 9303 if (cdb->byte2 & SVFY_DPO) 9304 flags |= CTL_LLF_DPO; 9305 lba = scsi_8btou64(cdb->addr); 9306 num_blocks = scsi_4btoul(cdb->length); 9307 break; 9308 } 9309 default: 9310 /* 9311 * We got a command we don't support. This shouldn't 9312 * happen, commands should be filtered out above us. 9313 */ 9314 ctl_set_invalid_opcode(ctsio); 9315 ctl_done((union ctl_io *)ctsio); 9316 return (CTL_RETVAL_COMPLETE); 9317 } 9318 9319 /* 9320 * The first check is to make sure we're in bounds, the second 9321 * check is to catch wrap-around problems. If the lba + num blocks 9322 * is less than the lba, then we've wrapped around and the block 9323 * range is invalid anyway. 9324 */ 9325 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9326 || ((lba + num_blocks) < lba)) { 9327 ctl_set_lba_out_of_range(ctsio); 9328 ctl_done((union ctl_io *)ctsio); 9329 return (CTL_RETVAL_COMPLETE); 9330 } 9331 9332 /* 9333 * According to SBC-3, a transfer length of 0 is not an error. 9334 */ 9335 if (num_blocks == 0) { 9336 ctl_set_success(ctsio); 9337 ctl_done((union ctl_io *)ctsio); 9338 return (CTL_RETVAL_COMPLETE); 9339 } 9340 9341 lbalen = (struct ctl_lba_len_flags *) 9342 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9343 lbalen->lba = lba; 9344 lbalen->len = num_blocks; 9345 if (bytchk) { 9346 lbalen->flags = CTL_LLF_COMPARE | flags; 9347 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9348 } else { 9349 lbalen->flags = CTL_LLF_VERIFY | flags; 9350 ctsio->kern_total_len = 0; 9351 } 9352 ctsio->kern_rel_offset = 0; 9353 9354 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9355 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9356 return (retval); 9357} 9358 9359int 9360ctl_report_luns(struct ctl_scsiio *ctsio) 9361{ 9362 struct ctl_softc *softc = control_softc; 9363 struct scsi_report_luns *cdb; 9364 struct scsi_report_luns_data *lun_data; 9365 struct ctl_lun *lun, *request_lun; 9366 struct ctl_port *port; 9367 int num_luns, retval; 9368 uint32_t alloc_len, lun_datalen; 9369 int num_filled, well_known; 9370 uint32_t initidx, targ_lun_id, lun_id; 9371 9372 retval = CTL_RETVAL_COMPLETE; 9373 well_known = 0; 9374 9375 cdb = (struct scsi_report_luns *)ctsio->cdb; 9376 9377 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9378 9379 mtx_lock(&softc->ctl_lock); 9380 num_luns = softc->num_luns; 9381 mtx_unlock(&softc->ctl_lock); 9382 9383 switch (cdb->select_report) { 9384 case RPL_REPORT_DEFAULT: 9385 case RPL_REPORT_ALL: 9386 break; 9387 case RPL_REPORT_WELLKNOWN: 9388 well_known = 1; 9389 num_luns = 0; 9390 break; 9391 default: 9392 ctl_set_invalid_field(ctsio, 9393 /*sks_valid*/ 1, 9394 /*command*/ 1, 9395 /*field*/ 2, 9396 /*bit_valid*/ 0, 9397 /*bit*/ 0); 9398 ctl_done((union ctl_io *)ctsio); 9399 return (retval); 9400 break; /* NOTREACHED */ 9401 } 9402 9403 alloc_len = scsi_4btoul(cdb->length); 9404 /* 9405 * The initiator has to allocate at least 16 bytes for this request, 9406 * so he can at least get the header and the first LUN. Otherwise 9407 * we reject the request (per SPC-3 rev 14, section 6.21). 9408 */ 9409 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9410 sizeof(struct scsi_report_luns_lundata))) { 9411 ctl_set_invalid_field(ctsio, 9412 /*sks_valid*/ 1, 9413 /*command*/ 1, 9414 /*field*/ 6, 9415 /*bit_valid*/ 0, 9416 /*bit*/ 0); 9417 ctl_done((union ctl_io *)ctsio); 9418 return (retval); 9419 } 9420 9421 request_lun = (struct ctl_lun *) 9422 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9423 port = ctl_io_port(&ctsio->io_hdr); 9424 9425 lun_datalen = sizeof(*lun_data) + 9426 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9427 9428 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9429 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9430 ctsio->kern_sg_entries = 0; 9431 9432 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9433 9434 mtx_lock(&softc->ctl_lock); 9435 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9436 lun_id = ctl_lun_map_from_port(port, targ_lun_id); 9437 if (lun_id >= CTL_MAX_LUNS) 9438 continue; 9439 lun = softc->ctl_luns[lun_id]; 9440 if (lun == NULL) 9441 continue; 9442 9443 if (targ_lun_id <= 0xff) { 9444 /* 9445 * Peripheral addressing method, bus number 0. 9446 */ 9447 lun_data->luns[num_filled].lundata[0] = 9448 RPL_LUNDATA_ATYP_PERIPH; 9449 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9450 num_filled++; 9451 } else if (targ_lun_id <= 0x3fff) { 9452 /* 9453 * Flat addressing method. 9454 */ 9455 lun_data->luns[num_filled].lundata[0] = 9456 RPL_LUNDATA_ATYP_FLAT | (targ_lun_id >> 8); 9457 lun_data->luns[num_filled].lundata[1] = 9458 (targ_lun_id & 0xff); 9459 num_filled++; 9460 } else if (targ_lun_id <= 0xffffff) { 9461 /* 9462 * Extended flat addressing method. 9463 */ 9464 lun_data->luns[num_filled].lundata[0] = 9465 RPL_LUNDATA_ATYP_EXTLUN | 0x12; 9466 scsi_ulto3b(targ_lun_id, 9467 &lun_data->luns[num_filled].lundata[1]); 9468 num_filled++; 9469 } else { 9470 printf("ctl_report_luns: bogus LUN number %jd, " 9471 "skipping\n", (intmax_t)targ_lun_id); 9472 } 9473 /* 9474 * According to SPC-3, rev 14 section 6.21: 9475 * 9476 * "The execution of a REPORT LUNS command to any valid and 9477 * installed logical unit shall clear the REPORTED LUNS DATA 9478 * HAS CHANGED unit attention condition for all logical 9479 * units of that target with respect to the requesting 9480 * initiator. A valid and installed logical unit is one 9481 * having a PERIPHERAL QUALIFIER of 000b in the standard 9482 * INQUIRY data (see 6.4.2)." 9483 * 9484 * If request_lun is NULL, the LUN this report luns command 9485 * was issued to is either disabled or doesn't exist. In that 9486 * case, we shouldn't clear any pending lun change unit 9487 * attention. 9488 */ 9489 if (request_lun != NULL) { 9490 mtx_lock(&lun->lun_lock); 9491 ctl_clr_ua(lun, initidx, CTL_UA_RES_RELEASE); 9492 mtx_unlock(&lun->lun_lock); 9493 } 9494 } 9495 mtx_unlock(&softc->ctl_lock); 9496 9497 /* 9498 * It's quite possible that we've returned fewer LUNs than we allocated 9499 * space for. Trim it. 9500 */ 9501 lun_datalen = sizeof(*lun_data) + 9502 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9503 9504 if (lun_datalen < alloc_len) { 9505 ctsio->residual = alloc_len - lun_datalen; 9506 ctsio->kern_data_len = lun_datalen; 9507 ctsio->kern_total_len = lun_datalen; 9508 } else { 9509 ctsio->residual = 0; 9510 ctsio->kern_data_len = alloc_len; 9511 ctsio->kern_total_len = alloc_len; 9512 } 9513 ctsio->kern_data_resid = 0; 9514 ctsio->kern_rel_offset = 0; 9515 ctsio->kern_sg_entries = 0; 9516 9517 /* 9518 * We set this to the actual data length, regardless of how much 9519 * space we actually have to return results. If the user looks at 9520 * this value, he'll know whether or not he allocated enough space 9521 * and reissue the command if necessary. We don't support well 9522 * known logical units, so if the user asks for that, return none. 9523 */ 9524 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9525 9526 /* 9527 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9528 * this request. 9529 */ 9530 ctl_set_success(ctsio); 9531 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9532 ctsio->be_move_done = ctl_config_move_done; 9533 ctl_datamove((union ctl_io *)ctsio); 9534 return (retval); 9535} 9536 9537int 9538ctl_request_sense(struct ctl_scsiio *ctsio) 9539{ 9540 struct scsi_request_sense *cdb; 9541 struct scsi_sense_data *sense_ptr; 9542 struct ctl_softc *ctl_softc; 9543 struct ctl_lun *lun; 9544 uint32_t initidx; 9545 int have_error; 9546 scsi_sense_data_type sense_format; 9547 ctl_ua_type ua_type; 9548 9549 cdb = (struct scsi_request_sense *)ctsio->cdb; 9550 9551 ctl_softc = control_softc; 9552 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9553 9554 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9555 9556 /* 9557 * Determine which sense format the user wants. 9558 */ 9559 if (cdb->byte2 & SRS_DESC) 9560 sense_format = SSD_TYPE_DESC; 9561 else 9562 sense_format = SSD_TYPE_FIXED; 9563 9564 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9565 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9566 ctsio->kern_sg_entries = 0; 9567 9568 /* 9569 * struct scsi_sense_data, which is currently set to 256 bytes, is 9570 * larger than the largest allowed value for the length field in the 9571 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9572 */ 9573 ctsio->residual = 0; 9574 ctsio->kern_data_len = cdb->length; 9575 ctsio->kern_total_len = cdb->length; 9576 9577 ctsio->kern_data_resid = 0; 9578 ctsio->kern_rel_offset = 0; 9579 ctsio->kern_sg_entries = 0; 9580 9581 /* 9582 * If we don't have a LUN, we don't have any pending sense. 9583 */ 9584 if (lun == NULL) 9585 goto no_sense; 9586 9587 have_error = 0; 9588 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9589 /* 9590 * Check for pending sense, and then for pending unit attentions. 9591 * Pending sense gets returned first, then pending unit attentions. 9592 */ 9593 mtx_lock(&lun->lun_lock); 9594#ifdef CTL_WITH_CA 9595 if (ctl_is_set(lun->have_ca, initidx)) { 9596 scsi_sense_data_type stored_format; 9597 9598 /* 9599 * Check to see which sense format was used for the stored 9600 * sense data. 9601 */ 9602 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9603 9604 /* 9605 * If the user requested a different sense format than the 9606 * one we stored, then we need to convert it to the other 9607 * format. If we're going from descriptor to fixed format 9608 * sense data, we may lose things in translation, depending 9609 * on what options were used. 9610 * 9611 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9612 * for some reason we'll just copy it out as-is. 9613 */ 9614 if ((stored_format == SSD_TYPE_FIXED) 9615 && (sense_format == SSD_TYPE_DESC)) 9616 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9617 &lun->pending_sense[initidx], 9618 (struct scsi_sense_data_desc *)sense_ptr); 9619 else if ((stored_format == SSD_TYPE_DESC) 9620 && (sense_format == SSD_TYPE_FIXED)) 9621 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9622 &lun->pending_sense[initidx], 9623 (struct scsi_sense_data_fixed *)sense_ptr); 9624 else 9625 memcpy(sense_ptr, &lun->pending_sense[initidx], 9626 MIN(sizeof(*sense_ptr), 9627 sizeof(lun->pending_sense[initidx]))); 9628 9629 ctl_clear_mask(lun->have_ca, initidx); 9630 have_error = 1; 9631 } else 9632#endif 9633 { 9634 ua_type = ctl_build_ua(lun, initidx, sense_ptr, sense_format); 9635 if (ua_type != CTL_UA_NONE) 9636 have_error = 1; 9637 if (ua_type == CTL_UA_LUN_CHANGE) { 9638 mtx_unlock(&lun->lun_lock); 9639 mtx_lock(&ctl_softc->ctl_lock); 9640 ctl_clear_ua(ctl_softc, initidx, ua_type); 9641 mtx_unlock(&ctl_softc->ctl_lock); 9642 mtx_lock(&lun->lun_lock); 9643 } 9644 9645 } 9646 mtx_unlock(&lun->lun_lock); 9647 9648 /* 9649 * We already have a pending error, return it. 9650 */ 9651 if (have_error != 0) { 9652 /* 9653 * We report the SCSI status as OK, since the status of the 9654 * request sense command itself is OK. 9655 * We report 0 for the sense length, because we aren't doing 9656 * autosense in this case. We're reporting sense as 9657 * parameter data. 9658 */ 9659 ctl_set_success(ctsio); 9660 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9661 ctsio->be_move_done = ctl_config_move_done; 9662 ctl_datamove((union ctl_io *)ctsio); 9663 return (CTL_RETVAL_COMPLETE); 9664 } 9665 9666no_sense: 9667 9668 /* 9669 * No sense information to report, so we report that everything is 9670 * okay. 9671 */ 9672 ctl_set_sense_data(sense_ptr, 9673 lun, 9674 sense_format, 9675 /*current_error*/ 1, 9676 /*sense_key*/ SSD_KEY_NO_SENSE, 9677 /*asc*/ 0x00, 9678 /*ascq*/ 0x00, 9679 SSD_ELEM_NONE); 9680 9681 /* 9682 * We report 0 for the sense length, because we aren't doing 9683 * autosense in this case. We're reporting sense as parameter data. 9684 */ 9685 ctl_set_success(ctsio); 9686 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9687 ctsio->be_move_done = ctl_config_move_done; 9688 ctl_datamove((union ctl_io *)ctsio); 9689 return (CTL_RETVAL_COMPLETE); 9690} 9691 9692int 9693ctl_tur(struct ctl_scsiio *ctsio) 9694{ 9695 9696 CTL_DEBUG_PRINT(("ctl_tur\n")); 9697 9698 ctl_set_success(ctsio); 9699 ctl_done((union ctl_io *)ctsio); 9700 9701 return (CTL_RETVAL_COMPLETE); 9702} 9703 9704#ifdef notyet 9705static int 9706ctl_cmddt_inquiry(struct ctl_scsiio *ctsio) 9707{ 9708 9709} 9710#endif 9711 9712/* 9713 * SCSI VPD page 0x00, the Supported VPD Pages page. 9714 */ 9715static int 9716ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9717{ 9718 struct scsi_vpd_supported_pages *pages; 9719 int sup_page_size; 9720 struct ctl_lun *lun; 9721 int p; 9722 9723 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9724 9725 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9726 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9727 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9728 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9729 ctsio->kern_sg_entries = 0; 9730 9731 if (sup_page_size < alloc_len) { 9732 ctsio->residual = alloc_len - sup_page_size; 9733 ctsio->kern_data_len = sup_page_size; 9734 ctsio->kern_total_len = sup_page_size; 9735 } else { 9736 ctsio->residual = 0; 9737 ctsio->kern_data_len = alloc_len; 9738 ctsio->kern_total_len = alloc_len; 9739 } 9740 ctsio->kern_data_resid = 0; 9741 ctsio->kern_rel_offset = 0; 9742 ctsio->kern_sg_entries = 0; 9743 9744 /* 9745 * The control device is always connected. The disk device, on the 9746 * other hand, may not be online all the time. Need to change this 9747 * to figure out whether the disk device is actually online or not. 9748 */ 9749 if (lun != NULL) 9750 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9751 lun->be_lun->lun_type; 9752 else 9753 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9754 9755 p = 0; 9756 /* Supported VPD pages */ 9757 pages->page_list[p++] = SVPD_SUPPORTED_PAGES; 9758 /* Serial Number */ 9759 pages->page_list[p++] = SVPD_UNIT_SERIAL_NUMBER; 9760 /* Device Identification */ 9761 pages->page_list[p++] = SVPD_DEVICE_ID; 9762 /* Extended INQUIRY Data */ 9763 pages->page_list[p++] = SVPD_EXTENDED_INQUIRY_DATA; 9764 /* Mode Page Policy */ 9765 pages->page_list[p++] = SVPD_MODE_PAGE_POLICY; 9766 /* SCSI Ports */ 9767 pages->page_list[p++] = SVPD_SCSI_PORTS; 9768 /* Third-party Copy */ 9769 pages->page_list[p++] = SVPD_SCSI_TPC; 9770 if (lun != NULL && lun->be_lun->lun_type == T_DIRECT) { 9771 /* Block limits */ 9772 pages->page_list[p++] = SVPD_BLOCK_LIMITS; 9773 /* Block Device Characteristics */ 9774 pages->page_list[p++] = SVPD_BDC; 9775 /* Logical Block Provisioning */ 9776 pages->page_list[p++] = SVPD_LBP; 9777 } 9778 pages->length = p; 9779 9780 ctl_set_success(ctsio); 9781 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9782 ctsio->be_move_done = ctl_config_move_done; 9783 ctl_datamove((union ctl_io *)ctsio); 9784 return (CTL_RETVAL_COMPLETE); 9785} 9786 9787/* 9788 * SCSI VPD page 0x80, the Unit Serial Number page. 9789 */ 9790static int 9791ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9792{ 9793 struct scsi_vpd_unit_serial_number *sn_ptr; 9794 struct ctl_lun *lun; 9795 int data_len; 9796 9797 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9798 9799 data_len = 4 + CTL_SN_LEN; 9800 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9801 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9802 if (data_len < alloc_len) { 9803 ctsio->residual = alloc_len - data_len; 9804 ctsio->kern_data_len = data_len; 9805 ctsio->kern_total_len = data_len; 9806 } else { 9807 ctsio->residual = 0; 9808 ctsio->kern_data_len = alloc_len; 9809 ctsio->kern_total_len = alloc_len; 9810 } 9811 ctsio->kern_data_resid = 0; 9812 ctsio->kern_rel_offset = 0; 9813 ctsio->kern_sg_entries = 0; 9814 9815 /* 9816 * The control device is always connected. The disk device, on the 9817 * other hand, may not be online all the time. Need to change this 9818 * to figure out whether the disk device is actually online or not. 9819 */ 9820 if (lun != NULL) 9821 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9822 lun->be_lun->lun_type; 9823 else 9824 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9825 9826 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9827 sn_ptr->length = CTL_SN_LEN; 9828 /* 9829 * If we don't have a LUN, we just leave the serial number as 9830 * all spaces. 9831 */ 9832 if (lun != NULL) { 9833 strncpy((char *)sn_ptr->serial_num, 9834 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9835 } else 9836 memset(sn_ptr->serial_num, 0x20, CTL_SN_LEN); 9837 9838 ctl_set_success(ctsio); 9839 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9840 ctsio->be_move_done = ctl_config_move_done; 9841 ctl_datamove((union ctl_io *)ctsio); 9842 return (CTL_RETVAL_COMPLETE); 9843} 9844 9845 9846/* 9847 * SCSI VPD page 0x86, the Extended INQUIRY Data page. 9848 */ 9849static int 9850ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9851{ 9852 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9853 struct ctl_lun *lun; 9854 int data_len; 9855 9856 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9857 9858 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9859 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9860 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9861 ctsio->kern_sg_entries = 0; 9862 9863 if (data_len < alloc_len) { 9864 ctsio->residual = alloc_len - data_len; 9865 ctsio->kern_data_len = data_len; 9866 ctsio->kern_total_len = data_len; 9867 } else { 9868 ctsio->residual = 0; 9869 ctsio->kern_data_len = alloc_len; 9870 ctsio->kern_total_len = alloc_len; 9871 } 9872 ctsio->kern_data_resid = 0; 9873 ctsio->kern_rel_offset = 0; 9874 ctsio->kern_sg_entries = 0; 9875 9876 /* 9877 * The control device is always connected. The disk device, on the 9878 * other hand, may not be online all the time. 9879 */ 9880 if (lun != NULL) 9881 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9882 lun->be_lun->lun_type; 9883 else 9884 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9885 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9886 scsi_ulto2b(data_len - 4, eid_ptr->page_length); 9887 /* 9888 * We support head of queue, ordered and simple tags. 9889 */ 9890 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9891 /* 9892 * Volatile cache supported. 9893 */ 9894 eid_ptr->flags3 = SVPD_EID_V_SUP; 9895 9896 /* 9897 * This means that we clear the REPORTED LUNS DATA HAS CHANGED unit 9898 * attention for a particular IT nexus on all LUNs once we report 9899 * it to that nexus once. This bit is required as of SPC-4. 9900 */ 9901 eid_ptr->flags4 = SVPD_EID_LUICLT; 9902 9903 /* 9904 * XXX KDM in order to correctly answer this, we would need 9905 * information from the SIM to determine how much sense data it 9906 * can send. So this would really be a path inquiry field, most 9907 * likely. This can be set to a maximum of 252 according to SPC-4, 9908 * but the hardware may or may not be able to support that much. 9909 * 0 just means that the maximum sense data length is not reported. 9910 */ 9911 eid_ptr->max_sense_length = 0; 9912 9913 ctl_set_success(ctsio); 9914 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9915 ctsio->be_move_done = ctl_config_move_done; 9916 ctl_datamove((union ctl_io *)ctsio); 9917 return (CTL_RETVAL_COMPLETE); 9918} 9919 9920static int 9921ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9922{ 9923 struct scsi_vpd_mode_page_policy *mpp_ptr; 9924 struct ctl_lun *lun; 9925 int data_len; 9926 9927 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9928 9929 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9930 sizeof(struct scsi_vpd_mode_page_policy_descr); 9931 9932 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9933 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9934 ctsio->kern_sg_entries = 0; 9935 9936 if (data_len < alloc_len) { 9937 ctsio->residual = alloc_len - data_len; 9938 ctsio->kern_data_len = data_len; 9939 ctsio->kern_total_len = data_len; 9940 } else { 9941 ctsio->residual = 0; 9942 ctsio->kern_data_len = alloc_len; 9943 ctsio->kern_total_len = alloc_len; 9944 } 9945 ctsio->kern_data_resid = 0; 9946 ctsio->kern_rel_offset = 0; 9947 ctsio->kern_sg_entries = 0; 9948 9949 /* 9950 * The control device is always connected. The disk device, on the 9951 * other hand, may not be online all the time. 9952 */ 9953 if (lun != NULL) 9954 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9955 lun->be_lun->lun_type; 9956 else 9957 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9958 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9959 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9960 mpp_ptr->descr[0].page_code = 0x3f; 9961 mpp_ptr->descr[0].subpage_code = 0xff; 9962 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9963 9964 ctl_set_success(ctsio); 9965 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9966 ctsio->be_move_done = ctl_config_move_done; 9967 ctl_datamove((union ctl_io *)ctsio); 9968 return (CTL_RETVAL_COMPLETE); 9969} 9970 9971/* 9972 * SCSI VPD page 0x83, the Device Identification page. 9973 */ 9974static int 9975ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9976{ 9977 struct scsi_vpd_device_id *devid_ptr; 9978 struct scsi_vpd_id_descriptor *desc; 9979 struct ctl_softc *softc; 9980 struct ctl_lun *lun; 9981 struct ctl_port *port; 9982 int data_len; 9983 uint8_t proto; 9984 9985 softc = control_softc; 9986 9987 port = softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]; 9988 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9989 9990 data_len = sizeof(struct scsi_vpd_device_id) + 9991 sizeof(struct scsi_vpd_id_descriptor) + 9992 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9993 sizeof(struct scsi_vpd_id_descriptor) + 9994 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9995 if (lun && lun->lun_devid) 9996 data_len += lun->lun_devid->len; 9997 if (port->port_devid) 9998 data_len += port->port_devid->len; 9999 if (port->target_devid) 10000 data_len += port->target_devid->len; 10001 10002 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10003 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 10004 ctsio->kern_sg_entries = 0; 10005 10006 if (data_len < alloc_len) { 10007 ctsio->residual = alloc_len - data_len; 10008 ctsio->kern_data_len = data_len; 10009 ctsio->kern_total_len = data_len; 10010 } else { 10011 ctsio->residual = 0; 10012 ctsio->kern_data_len = alloc_len; 10013 ctsio->kern_total_len = alloc_len; 10014 } 10015 ctsio->kern_data_resid = 0; 10016 ctsio->kern_rel_offset = 0; 10017 ctsio->kern_sg_entries = 0; 10018 10019 /* 10020 * The control device is always connected. The disk device, on the 10021 * other hand, may not be online all the time. 10022 */ 10023 if (lun != NULL) 10024 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10025 lun->be_lun->lun_type; 10026 else 10027 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10028 devid_ptr->page_code = SVPD_DEVICE_ID; 10029 scsi_ulto2b(data_len - 4, devid_ptr->length); 10030 10031 if (port->port_type == CTL_PORT_FC) 10032 proto = SCSI_PROTO_FC << 4; 10033 else if (port->port_type == CTL_PORT_ISCSI) 10034 proto = SCSI_PROTO_ISCSI << 4; 10035 else 10036 proto = SCSI_PROTO_SPI << 4; 10037 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 10038 10039 /* 10040 * We're using a LUN association here. i.e., this device ID is a 10041 * per-LUN identifier. 10042 */ 10043 if (lun && lun->lun_devid) { 10044 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 10045 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 10046 lun->lun_devid->len); 10047 } 10048 10049 /* 10050 * This is for the WWPN which is a port association. 10051 */ 10052 if (port->port_devid) { 10053 memcpy(desc, port->port_devid->data, port->port_devid->len); 10054 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 10055 port->port_devid->len); 10056 } 10057 10058 /* 10059 * This is for the Relative Target Port(type 4h) identifier 10060 */ 10061 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 10062 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 10063 SVPD_ID_TYPE_RELTARG; 10064 desc->length = 4; 10065 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 10066 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 10067 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 10068 10069 /* 10070 * This is for the Target Port Group(type 5h) identifier 10071 */ 10072 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 10073 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 10074 SVPD_ID_TYPE_TPORTGRP; 10075 desc->length = 4; 10076 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS + 1, 10077 &desc->identifier[2]); 10078 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 10079 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 10080 10081 /* 10082 * This is for the Target identifier 10083 */ 10084 if (port->target_devid) { 10085 memcpy(desc, port->target_devid->data, port->target_devid->len); 10086 } 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_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 10097{ 10098 struct ctl_softc *softc = control_softc; 10099 struct scsi_vpd_scsi_ports *sp; 10100 struct scsi_vpd_port_designation *pd; 10101 struct scsi_vpd_port_designation_cont *pdc; 10102 struct ctl_lun *lun; 10103 struct ctl_port *port; 10104 int data_len, num_target_ports, iid_len, id_len, g, pg, p; 10105 int num_target_port_groups; 10106 10107 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10108 10109 if (softc->is_single) 10110 num_target_port_groups = 1; 10111 else 10112 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 10113 num_target_ports = 0; 10114 iid_len = 0; 10115 id_len = 0; 10116 mtx_lock(&softc->ctl_lock); 10117 STAILQ_FOREACH(port, &softc->port_list, links) { 10118 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10119 continue; 10120 if (lun != NULL && 10121 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 10122 continue; 10123 num_target_ports++; 10124 if (port->init_devid) 10125 iid_len += port->init_devid->len; 10126 if (port->port_devid) 10127 id_len += port->port_devid->len; 10128 } 10129 mtx_unlock(&softc->ctl_lock); 10130 10131 data_len = sizeof(struct scsi_vpd_scsi_ports) + num_target_port_groups * 10132 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 10133 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 10134 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10135 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 10136 ctsio->kern_sg_entries = 0; 10137 10138 if (data_len < alloc_len) { 10139 ctsio->residual = alloc_len - data_len; 10140 ctsio->kern_data_len = data_len; 10141 ctsio->kern_total_len = data_len; 10142 } else { 10143 ctsio->residual = 0; 10144 ctsio->kern_data_len = alloc_len; 10145 ctsio->kern_total_len = alloc_len; 10146 } 10147 ctsio->kern_data_resid = 0; 10148 ctsio->kern_rel_offset = 0; 10149 ctsio->kern_sg_entries = 0; 10150 10151 /* 10152 * The control device is always connected. The disk device, on the 10153 * other hand, may not be online all the time. Need to change this 10154 * to figure out whether the disk device is actually online or not. 10155 */ 10156 if (lun != NULL) 10157 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 10158 lun->be_lun->lun_type; 10159 else 10160 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10161 10162 sp->page_code = SVPD_SCSI_PORTS; 10163 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 10164 sp->page_length); 10165 pd = &sp->design[0]; 10166 10167 mtx_lock(&softc->ctl_lock); 10168 pg = softc->port_offset / CTL_MAX_PORTS; 10169 for (g = 0; g < num_target_port_groups; g++) { 10170 STAILQ_FOREACH(port, &softc->port_list, links) { 10171 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10172 continue; 10173 if (lun != NULL && 10174 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 10175 continue; 10176 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 10177 scsi_ulto2b(p, pd->relative_port_id); 10178 if (port->init_devid && g == pg) { 10179 iid_len = port->init_devid->len; 10180 memcpy(pd->initiator_transportid, 10181 port->init_devid->data, port->init_devid->len); 10182 } else 10183 iid_len = 0; 10184 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 10185 pdc = (struct scsi_vpd_port_designation_cont *) 10186 (&pd->initiator_transportid[iid_len]); 10187 if (port->port_devid && g == pg) { 10188 id_len = port->port_devid->len; 10189 memcpy(pdc->target_port_descriptors, 10190 port->port_devid->data, port->port_devid->len); 10191 } else 10192 id_len = 0; 10193 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 10194 pd = (struct scsi_vpd_port_designation *) 10195 ((uint8_t *)pdc->target_port_descriptors + id_len); 10196 } 10197 } 10198 mtx_unlock(&softc->ctl_lock); 10199 10200 ctl_set_success(ctsio); 10201 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10202 ctsio->be_move_done = ctl_config_move_done; 10203 ctl_datamove((union ctl_io *)ctsio); 10204 return (CTL_RETVAL_COMPLETE); 10205} 10206 10207static int 10208ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 10209{ 10210 struct scsi_vpd_block_limits *bl_ptr; 10211 struct ctl_lun *lun; 10212 int bs; 10213 10214 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10215 10216 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 10217 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 10218 ctsio->kern_sg_entries = 0; 10219 10220 if (sizeof(*bl_ptr) < alloc_len) { 10221 ctsio->residual = alloc_len - sizeof(*bl_ptr); 10222 ctsio->kern_data_len = sizeof(*bl_ptr); 10223 ctsio->kern_total_len = sizeof(*bl_ptr); 10224 } else { 10225 ctsio->residual = 0; 10226 ctsio->kern_data_len = alloc_len; 10227 ctsio->kern_total_len = alloc_len; 10228 } 10229 ctsio->kern_data_resid = 0; 10230 ctsio->kern_rel_offset = 0; 10231 ctsio->kern_sg_entries = 0; 10232 10233 /* 10234 * The control device is always connected. The disk device, on the 10235 * other hand, may not be online all the time. Need to change this 10236 * to figure out whether the disk device is actually online or not. 10237 */ 10238 if (lun != NULL) 10239 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10240 lun->be_lun->lun_type; 10241 else 10242 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10243 10244 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 10245 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 10246 bl_ptr->max_cmp_write_len = 0xff; 10247 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 10248 if (lun != NULL) { 10249 bs = lun->be_lun->blocksize; 10250 scsi_ulto4b(lun->be_lun->opttxferlen, bl_ptr->opt_txfer_len); 10251 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10252 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 10253 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 10254 if (lun->be_lun->ublockexp != 0) { 10255 scsi_ulto4b((1 << lun->be_lun->ublockexp), 10256 bl_ptr->opt_unmap_grain); 10257 scsi_ulto4b(0x80000000 | lun->be_lun->ublockoff, 10258 bl_ptr->unmap_grain_align); 10259 } 10260 } 10261 scsi_ulto4b(lun->be_lun->atomicblock, 10262 bl_ptr->max_atomic_transfer_length); 10263 scsi_ulto4b(0, bl_ptr->atomic_alignment); 10264 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 10265 } 10266 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 10267 10268 ctl_set_success(ctsio); 10269 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10270 ctsio->be_move_done = ctl_config_move_done; 10271 ctl_datamove((union ctl_io *)ctsio); 10272 return (CTL_RETVAL_COMPLETE); 10273} 10274 10275static int 10276ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 10277{ 10278 struct scsi_vpd_block_device_characteristics *bdc_ptr; 10279 struct ctl_lun *lun; 10280 const char *value; 10281 u_int i; 10282 10283 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10284 10285 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 10286 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 10287 ctsio->kern_sg_entries = 0; 10288 10289 if (sizeof(*bdc_ptr) < alloc_len) { 10290 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 10291 ctsio->kern_data_len = sizeof(*bdc_ptr); 10292 ctsio->kern_total_len = sizeof(*bdc_ptr); 10293 } else { 10294 ctsio->residual = 0; 10295 ctsio->kern_data_len = alloc_len; 10296 ctsio->kern_total_len = alloc_len; 10297 } 10298 ctsio->kern_data_resid = 0; 10299 ctsio->kern_rel_offset = 0; 10300 ctsio->kern_sg_entries = 0; 10301 10302 /* 10303 * The control device is always connected. The disk device, on the 10304 * other hand, may not be online all the time. Need to change this 10305 * to figure out whether the disk device is actually online or not. 10306 */ 10307 if (lun != NULL) 10308 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10309 lun->be_lun->lun_type; 10310 else 10311 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10312 bdc_ptr->page_code = SVPD_BDC; 10313 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 10314 if (lun != NULL && 10315 (value = ctl_get_opt(&lun->be_lun->options, "rpm")) != NULL) 10316 i = strtol(value, NULL, 0); 10317 else 10318 i = CTL_DEFAULT_ROTATION_RATE; 10319 scsi_ulto2b(i, bdc_ptr->medium_rotation_rate); 10320 if (lun != NULL && 10321 (value = ctl_get_opt(&lun->be_lun->options, "formfactor")) != NULL) 10322 i = strtol(value, NULL, 0); 10323 else 10324 i = 0; 10325 bdc_ptr->wab_wac_ff = (i & 0x0f); 10326 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 10327 10328 ctl_set_success(ctsio); 10329 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10330 ctsio->be_move_done = ctl_config_move_done; 10331 ctl_datamove((union ctl_io *)ctsio); 10332 return (CTL_RETVAL_COMPLETE); 10333} 10334 10335static int 10336ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10337{ 10338 struct scsi_vpd_logical_block_prov *lbp_ptr; 10339 struct ctl_lun *lun; 10340 10341 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10342 10343 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10344 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10345 ctsio->kern_sg_entries = 0; 10346 10347 if (sizeof(*lbp_ptr) < alloc_len) { 10348 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10349 ctsio->kern_data_len = sizeof(*lbp_ptr); 10350 ctsio->kern_total_len = sizeof(*lbp_ptr); 10351 } else { 10352 ctsio->residual = 0; 10353 ctsio->kern_data_len = alloc_len; 10354 ctsio->kern_total_len = alloc_len; 10355 } 10356 ctsio->kern_data_resid = 0; 10357 ctsio->kern_rel_offset = 0; 10358 ctsio->kern_sg_entries = 0; 10359 10360 /* 10361 * The control device is always connected. The disk device, on the 10362 * other hand, may not be online all the time. Need to change this 10363 * to figure out whether the disk device is actually online or not. 10364 */ 10365 if (lun != NULL) 10366 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10367 lun->be_lun->lun_type; 10368 else 10369 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10370 10371 lbp_ptr->page_code = SVPD_LBP; 10372 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10373 lbp_ptr->threshold_exponent = CTL_LBP_EXPONENT; 10374 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10375 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10376 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10377 lbp_ptr->prov_type = SVPD_LBP_THIN; 10378 } 10379 10380 ctl_set_success(ctsio); 10381 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10382 ctsio->be_move_done = ctl_config_move_done; 10383 ctl_datamove((union ctl_io *)ctsio); 10384 return (CTL_RETVAL_COMPLETE); 10385} 10386 10387/* 10388 * INQUIRY with the EVPD bit set. 10389 */ 10390static int 10391ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10392{ 10393 struct ctl_lun *lun; 10394 struct scsi_inquiry *cdb; 10395 int alloc_len, retval; 10396 10397 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10398 cdb = (struct scsi_inquiry *)ctsio->cdb; 10399 alloc_len = scsi_2btoul(cdb->length); 10400 10401 switch (cdb->page_code) { 10402 case SVPD_SUPPORTED_PAGES: 10403 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10404 break; 10405 case SVPD_UNIT_SERIAL_NUMBER: 10406 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10407 break; 10408 case SVPD_DEVICE_ID: 10409 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10410 break; 10411 case SVPD_EXTENDED_INQUIRY_DATA: 10412 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10413 break; 10414 case SVPD_MODE_PAGE_POLICY: 10415 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10416 break; 10417 case SVPD_SCSI_PORTS: 10418 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10419 break; 10420 case SVPD_SCSI_TPC: 10421 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10422 break; 10423 case SVPD_BLOCK_LIMITS: 10424 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10425 goto err; 10426 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10427 break; 10428 case SVPD_BDC: 10429 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10430 goto err; 10431 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10432 break; 10433 case SVPD_LBP: 10434 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10435 goto err; 10436 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10437 break; 10438 default: 10439err: 10440 ctl_set_invalid_field(ctsio, 10441 /*sks_valid*/ 1, 10442 /*command*/ 1, 10443 /*field*/ 2, 10444 /*bit_valid*/ 0, 10445 /*bit*/ 0); 10446 ctl_done((union ctl_io *)ctsio); 10447 retval = CTL_RETVAL_COMPLETE; 10448 break; 10449 } 10450 10451 return (retval); 10452} 10453 10454/* 10455 * Standard INQUIRY data. 10456 */ 10457static int 10458ctl_inquiry_std(struct ctl_scsiio *ctsio) 10459{ 10460 struct scsi_inquiry_data *inq_ptr; 10461 struct scsi_inquiry *cdb; 10462 struct ctl_softc *softc; 10463 struct ctl_lun *lun; 10464 char *val; 10465 uint32_t alloc_len, data_len; 10466 ctl_port_type port_type; 10467 10468 softc = control_softc; 10469 10470 /* 10471 * Figure out whether we're talking to a Fibre Channel port or not. 10472 * We treat the ioctl front end, and any SCSI adapters, as packetized 10473 * SCSI front ends. 10474 */ 10475 port_type = softc->ctl_ports[ 10476 ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]->port_type; 10477 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10478 port_type = CTL_PORT_SCSI; 10479 10480 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10481 cdb = (struct scsi_inquiry *)ctsio->cdb; 10482 alloc_len = scsi_2btoul(cdb->length); 10483 10484 /* 10485 * We malloc the full inquiry data size here and fill it 10486 * in. If the user only asks for less, we'll give him 10487 * that much. 10488 */ 10489 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10490 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10491 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10492 ctsio->kern_sg_entries = 0; 10493 ctsio->kern_data_resid = 0; 10494 ctsio->kern_rel_offset = 0; 10495 10496 if (data_len < alloc_len) { 10497 ctsio->residual = alloc_len - data_len; 10498 ctsio->kern_data_len = data_len; 10499 ctsio->kern_total_len = data_len; 10500 } else { 10501 ctsio->residual = 0; 10502 ctsio->kern_data_len = alloc_len; 10503 ctsio->kern_total_len = alloc_len; 10504 } 10505 10506 /* 10507 * If we have a LUN configured, report it as connected. Otherwise, 10508 * report that it is offline or no device is supported, depending 10509 * on the value of inquiry_pq_no_lun. 10510 * 10511 * According to the spec (SPC-4 r34), the peripheral qualifier 10512 * SID_QUAL_LU_OFFLINE (001b) is used in the following scenario: 10513 * 10514 * "A peripheral device having the specified peripheral device type 10515 * is not connected to this logical unit. However, the device 10516 * server is capable of supporting the specified peripheral device 10517 * type on this logical unit." 10518 * 10519 * According to the same spec, the peripheral qualifier 10520 * SID_QUAL_BAD_LU (011b) is used in this scenario: 10521 * 10522 * "The device server is not capable of supporting a peripheral 10523 * device on this logical unit. For this peripheral qualifier the 10524 * peripheral device type shall be set to 1Fh. All other peripheral 10525 * device type values are reserved for this peripheral qualifier." 10526 * 10527 * Given the text, it would seem that we probably want to report that 10528 * the LUN is offline here. There is no LUN connected, but we can 10529 * support a LUN at the given LUN number. 10530 * 10531 * In the real world, though, it sounds like things are a little 10532 * different: 10533 * 10534 * - Linux, when presented with a LUN with the offline peripheral 10535 * qualifier, will create an sg driver instance for it. So when 10536 * you attach it to CTL, you wind up with a ton of sg driver 10537 * instances. (One for every LUN that Linux bothered to probe.) 10538 * Linux does this despite the fact that it issues a REPORT LUNs 10539 * to LUN 0 to get the inventory of supported LUNs. 10540 * 10541 * - There is other anecdotal evidence (from Emulex folks) about 10542 * arrays that use the offline peripheral qualifier for LUNs that 10543 * are on the "passive" path in an active/passive array. 10544 * 10545 * So the solution is provide a hopefully reasonable default 10546 * (return bad/no LUN) and allow the user to change the behavior 10547 * with a tunable/sysctl variable. 10548 */ 10549 if (lun != NULL) 10550 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10551 lun->be_lun->lun_type; 10552 else if (softc->inquiry_pq_no_lun == 0) 10553 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10554 else 10555 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10556 10557 /* RMB in byte 2 is 0 */ 10558 inq_ptr->version = SCSI_REV_SPC4; 10559 10560 /* 10561 * According to SAM-3, even if a device only supports a single 10562 * level of LUN addressing, it should still set the HISUP bit: 10563 * 10564 * 4.9.1 Logical unit numbers overview 10565 * 10566 * All logical unit number formats described in this standard are 10567 * hierarchical in structure even when only a single level in that 10568 * hierarchy is used. The HISUP bit shall be set to one in the 10569 * standard INQUIRY data (see SPC-2) when any logical unit number 10570 * format described in this standard is used. Non-hierarchical 10571 * formats are outside the scope of this standard. 10572 * 10573 * Therefore we set the HiSup bit here. 10574 * 10575 * The reponse format is 2, per SPC-3. 10576 */ 10577 inq_ptr->response_format = SID_HiSup | 2; 10578 10579 inq_ptr->additional_length = data_len - 10580 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10581 CTL_DEBUG_PRINT(("additional_length = %d\n", 10582 inq_ptr->additional_length)); 10583 10584 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10585 /* 16 bit addressing */ 10586 if (port_type == CTL_PORT_SCSI) 10587 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10588 /* XXX set the SID_MultiP bit here if we're actually going to 10589 respond on multiple ports */ 10590 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10591 10592 /* 16 bit data bus, synchronous transfers */ 10593 if (port_type == CTL_PORT_SCSI) 10594 inq_ptr->flags = SID_WBus16 | SID_Sync; 10595 /* 10596 * XXX KDM do we want to support tagged queueing on the control 10597 * device at all? 10598 */ 10599 if ((lun == NULL) 10600 || (lun->be_lun->lun_type != T_PROCESSOR)) 10601 inq_ptr->flags |= SID_CmdQue; 10602 /* 10603 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10604 * We have 8 bytes for the vendor name, and 16 bytes for the device 10605 * name and 4 bytes for the revision. 10606 */ 10607 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10608 "vendor")) == NULL) { 10609 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10610 } else { 10611 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10612 strncpy(inq_ptr->vendor, val, 10613 min(sizeof(inq_ptr->vendor), strlen(val))); 10614 } 10615 if (lun == NULL) { 10616 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10617 sizeof(inq_ptr->product)); 10618 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10619 switch (lun->be_lun->lun_type) { 10620 case T_DIRECT: 10621 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10622 sizeof(inq_ptr->product)); 10623 break; 10624 case T_PROCESSOR: 10625 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10626 sizeof(inq_ptr->product)); 10627 break; 10628 default: 10629 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10630 sizeof(inq_ptr->product)); 10631 break; 10632 } 10633 } else { 10634 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10635 strncpy(inq_ptr->product, val, 10636 min(sizeof(inq_ptr->product), strlen(val))); 10637 } 10638 10639 /* 10640 * XXX make this a macro somewhere so it automatically gets 10641 * incremented when we make changes. 10642 */ 10643 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10644 "revision")) == NULL) { 10645 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10646 } else { 10647 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10648 strncpy(inq_ptr->revision, val, 10649 min(sizeof(inq_ptr->revision), strlen(val))); 10650 } 10651 10652 /* 10653 * For parallel SCSI, we support double transition and single 10654 * transition clocking. We also support QAS (Quick Arbitration 10655 * and Selection) and Information Unit transfers on both the 10656 * control and array devices. 10657 */ 10658 if (port_type == CTL_PORT_SCSI) 10659 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10660 SID_SPI_IUS; 10661 10662 /* SAM-5 (no version claimed) */ 10663 scsi_ulto2b(0x00A0, inq_ptr->version1); 10664 /* SPC-4 (no version claimed) */ 10665 scsi_ulto2b(0x0460, inq_ptr->version2); 10666 if (port_type == CTL_PORT_FC) { 10667 /* FCP-2 ANSI INCITS.350:2003 */ 10668 scsi_ulto2b(0x0917, inq_ptr->version3); 10669 } else if (port_type == CTL_PORT_SCSI) { 10670 /* SPI-4 ANSI INCITS.362:200x */ 10671 scsi_ulto2b(0x0B56, inq_ptr->version3); 10672 } else if (port_type == CTL_PORT_ISCSI) { 10673 /* iSCSI (no version claimed) */ 10674 scsi_ulto2b(0x0960, inq_ptr->version3); 10675 } else if (port_type == CTL_PORT_SAS) { 10676 /* SAS (no version claimed) */ 10677 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10678 } 10679 10680 if (lun == NULL) { 10681 /* SBC-4 (no version claimed) */ 10682 scsi_ulto2b(0x0600, inq_ptr->version4); 10683 } else { 10684 switch (lun->be_lun->lun_type) { 10685 case T_DIRECT: 10686 /* SBC-4 (no version claimed) */ 10687 scsi_ulto2b(0x0600, inq_ptr->version4); 10688 break; 10689 case T_PROCESSOR: 10690 default: 10691 break; 10692 } 10693 } 10694 10695 ctl_set_success(ctsio); 10696 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10697 ctsio->be_move_done = ctl_config_move_done; 10698 ctl_datamove((union ctl_io *)ctsio); 10699 return (CTL_RETVAL_COMPLETE); 10700} 10701 10702int 10703ctl_inquiry(struct ctl_scsiio *ctsio) 10704{ 10705 struct scsi_inquiry *cdb; 10706 int retval; 10707 10708 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10709 10710 cdb = (struct scsi_inquiry *)ctsio->cdb; 10711 if (cdb->byte2 & SI_EVPD) 10712 retval = ctl_inquiry_evpd(ctsio); 10713 else if (cdb->page_code == 0) 10714 retval = ctl_inquiry_std(ctsio); 10715 else { 10716 ctl_set_invalid_field(ctsio, 10717 /*sks_valid*/ 1, 10718 /*command*/ 1, 10719 /*field*/ 2, 10720 /*bit_valid*/ 0, 10721 /*bit*/ 0); 10722 ctl_done((union ctl_io *)ctsio); 10723 return (CTL_RETVAL_COMPLETE); 10724 } 10725 10726 return (retval); 10727} 10728 10729/* 10730 * For known CDB types, parse the LBA and length. 10731 */ 10732static int 10733ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10734{ 10735 if (io->io_hdr.io_type != CTL_IO_SCSI) 10736 return (1); 10737 10738 switch (io->scsiio.cdb[0]) { 10739 case COMPARE_AND_WRITE: { 10740 struct scsi_compare_and_write *cdb; 10741 10742 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10743 10744 *lba = scsi_8btou64(cdb->addr); 10745 *len = cdb->length; 10746 break; 10747 } 10748 case READ_6: 10749 case WRITE_6: { 10750 struct scsi_rw_6 *cdb; 10751 10752 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10753 10754 *lba = scsi_3btoul(cdb->addr); 10755 /* only 5 bits are valid in the most significant address byte */ 10756 *lba &= 0x1fffff; 10757 *len = cdb->length; 10758 break; 10759 } 10760 case READ_10: 10761 case WRITE_10: { 10762 struct scsi_rw_10 *cdb; 10763 10764 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10765 10766 *lba = scsi_4btoul(cdb->addr); 10767 *len = scsi_2btoul(cdb->length); 10768 break; 10769 } 10770 case WRITE_VERIFY_10: { 10771 struct scsi_write_verify_10 *cdb; 10772 10773 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10774 10775 *lba = scsi_4btoul(cdb->addr); 10776 *len = scsi_2btoul(cdb->length); 10777 break; 10778 } 10779 case READ_12: 10780 case WRITE_12: { 10781 struct scsi_rw_12 *cdb; 10782 10783 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10784 10785 *lba = scsi_4btoul(cdb->addr); 10786 *len = scsi_4btoul(cdb->length); 10787 break; 10788 } 10789 case WRITE_VERIFY_12: { 10790 struct scsi_write_verify_12 *cdb; 10791 10792 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10793 10794 *lba = scsi_4btoul(cdb->addr); 10795 *len = scsi_4btoul(cdb->length); 10796 break; 10797 } 10798 case READ_16: 10799 case WRITE_16: 10800 case WRITE_ATOMIC_16: { 10801 struct scsi_rw_16 *cdb; 10802 10803 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10804 10805 *lba = scsi_8btou64(cdb->addr); 10806 *len = scsi_4btoul(cdb->length); 10807 break; 10808 } 10809 case WRITE_VERIFY_16: { 10810 struct scsi_write_verify_16 *cdb; 10811 10812 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10813 10814 *lba = scsi_8btou64(cdb->addr); 10815 *len = scsi_4btoul(cdb->length); 10816 break; 10817 } 10818 case WRITE_SAME_10: { 10819 struct scsi_write_same_10 *cdb; 10820 10821 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10822 10823 *lba = scsi_4btoul(cdb->addr); 10824 *len = scsi_2btoul(cdb->length); 10825 break; 10826 } 10827 case WRITE_SAME_16: { 10828 struct scsi_write_same_16 *cdb; 10829 10830 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10831 10832 *lba = scsi_8btou64(cdb->addr); 10833 *len = scsi_4btoul(cdb->length); 10834 break; 10835 } 10836 case VERIFY_10: { 10837 struct scsi_verify_10 *cdb; 10838 10839 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10840 10841 *lba = scsi_4btoul(cdb->addr); 10842 *len = scsi_2btoul(cdb->length); 10843 break; 10844 } 10845 case VERIFY_12: { 10846 struct scsi_verify_12 *cdb; 10847 10848 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10849 10850 *lba = scsi_4btoul(cdb->addr); 10851 *len = scsi_4btoul(cdb->length); 10852 break; 10853 } 10854 case VERIFY_16: { 10855 struct scsi_verify_16 *cdb; 10856 10857 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10858 10859 *lba = scsi_8btou64(cdb->addr); 10860 *len = scsi_4btoul(cdb->length); 10861 break; 10862 } 10863 case UNMAP: { 10864 *lba = 0; 10865 *len = UINT64_MAX; 10866 break; 10867 } 10868 case SERVICE_ACTION_IN: { /* GET LBA STATUS */ 10869 struct scsi_get_lba_status *cdb; 10870 10871 cdb = (struct scsi_get_lba_status *)io->scsiio.cdb; 10872 *lba = scsi_8btou64(cdb->addr); 10873 *len = UINT32_MAX; 10874 break; 10875 } 10876 default: 10877 return (1); 10878 break; /* NOTREACHED */ 10879 } 10880 10881 return (0); 10882} 10883 10884static ctl_action 10885ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2, 10886 bool seq) 10887{ 10888 uint64_t endlba1, endlba2; 10889 10890 endlba1 = lba1 + len1 - (seq ? 0 : 1); 10891 endlba2 = lba2 + len2 - 1; 10892 10893 if ((endlba1 < lba2) || (endlba2 < lba1)) 10894 return (CTL_ACTION_PASS); 10895 else 10896 return (CTL_ACTION_BLOCK); 10897} 10898 10899static int 10900ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10901{ 10902 struct ctl_ptr_len_flags *ptrlen; 10903 struct scsi_unmap_desc *buf, *end, *range; 10904 uint64_t lba; 10905 uint32_t len; 10906 10907 /* If not UNMAP -- go other way. */ 10908 if (io->io_hdr.io_type != CTL_IO_SCSI || 10909 io->scsiio.cdb[0] != UNMAP) 10910 return (CTL_ACTION_ERROR); 10911 10912 /* If UNMAP without data -- block and wait for data. */ 10913 ptrlen = (struct ctl_ptr_len_flags *) 10914 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10915 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10916 ptrlen->ptr == NULL) 10917 return (CTL_ACTION_BLOCK); 10918 10919 /* UNMAP with data -- check for collision. */ 10920 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10921 end = buf + ptrlen->len / sizeof(*buf); 10922 for (range = buf; range < end; range++) { 10923 lba = scsi_8btou64(range->lba); 10924 len = scsi_4btoul(range->length); 10925 if ((lba < lba2 + len2) && (lba + len > lba2)) 10926 return (CTL_ACTION_BLOCK); 10927 } 10928 return (CTL_ACTION_PASS); 10929} 10930 10931static ctl_action 10932ctl_extent_check(union ctl_io *io1, union ctl_io *io2, bool seq) 10933{ 10934 uint64_t lba1, lba2; 10935 uint64_t len1, len2; 10936 int retval; 10937 10938 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10939 return (CTL_ACTION_ERROR); 10940 10941 retval = ctl_extent_check_unmap(io1, lba2, len2); 10942 if (retval != CTL_ACTION_ERROR) 10943 return (retval); 10944 10945 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10946 return (CTL_ACTION_ERROR); 10947 10948 return (ctl_extent_check_lba(lba1, len1, lba2, len2, seq)); 10949} 10950 10951static ctl_action 10952ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2) 10953{ 10954 uint64_t lba1, lba2; 10955 uint64_t len1, len2; 10956 10957 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10958 return (CTL_ACTION_ERROR); 10959 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10960 return (CTL_ACTION_ERROR); 10961 10962 if (lba1 + len1 == lba2) 10963 return (CTL_ACTION_BLOCK); 10964 return (CTL_ACTION_PASS); 10965} 10966 10967static ctl_action 10968ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10969 union ctl_io *ooa_io) 10970{ 10971 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10972 ctl_serialize_action *serialize_row; 10973 10974 /* 10975 * The initiator attempted multiple untagged commands at the same 10976 * time. Can't do that. 10977 */ 10978 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10979 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10980 && ((pending_io->io_hdr.nexus.targ_port == 10981 ooa_io->io_hdr.nexus.targ_port) 10982 && (pending_io->io_hdr.nexus.initid.id == 10983 ooa_io->io_hdr.nexus.initid.id)) 10984 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 10985 CTL_FLAG_STATUS_SENT)) == 0)) 10986 return (CTL_ACTION_OVERLAP); 10987 10988 /* 10989 * The initiator attempted to send multiple tagged commands with 10990 * the same ID. (It's fine if different initiators have the same 10991 * tag ID.) 10992 * 10993 * Even if all of those conditions are true, we don't kill the I/O 10994 * if the command ahead of us has been aborted. We won't end up 10995 * sending it to the FETD, and it's perfectly legal to resend a 10996 * command with the same tag number as long as the previous 10997 * instance of this tag number has been aborted somehow. 10998 */ 10999 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11000 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11001 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 11002 && ((pending_io->io_hdr.nexus.targ_port == 11003 ooa_io->io_hdr.nexus.targ_port) 11004 && (pending_io->io_hdr.nexus.initid.id == 11005 ooa_io->io_hdr.nexus.initid.id)) 11006 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 11007 CTL_FLAG_STATUS_SENT)) == 0)) 11008 return (CTL_ACTION_OVERLAP_TAG); 11009 11010 /* 11011 * If we get a head of queue tag, SAM-3 says that we should 11012 * immediately execute it. 11013 * 11014 * What happens if this command would normally block for some other 11015 * reason? e.g. a request sense with a head of queue tag 11016 * immediately after a write. Normally that would block, but this 11017 * will result in its getting executed immediately... 11018 * 11019 * We currently return "pass" instead of "skip", so we'll end up 11020 * going through the rest of the queue to check for overlapped tags. 11021 * 11022 * XXX KDM check for other types of blockage first?? 11023 */ 11024 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11025 return (CTL_ACTION_PASS); 11026 11027 /* 11028 * Ordered tags have to block until all items ahead of them 11029 * have completed. If we get called with an ordered tag, we always 11030 * block, if something else is ahead of us in the queue. 11031 */ 11032 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 11033 return (CTL_ACTION_BLOCK); 11034 11035 /* 11036 * Simple tags get blocked until all head of queue and ordered tags 11037 * ahead of them have completed. I'm lumping untagged commands in 11038 * with simple tags here. XXX KDM is that the right thing to do? 11039 */ 11040 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11041 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 11042 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11043 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 11044 return (CTL_ACTION_BLOCK); 11045 11046 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 11047 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 11048 11049 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 11050 11051 switch (serialize_row[pending_entry->seridx]) { 11052 case CTL_SER_BLOCK: 11053 return (CTL_ACTION_BLOCK); 11054 case CTL_SER_EXTENT: 11055 return (ctl_extent_check(ooa_io, pending_io, 11056 (lun->serseq == CTL_LUN_SERSEQ_ON))); 11057 case CTL_SER_EXTENTOPT: 11058 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 11059 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 11060 return (ctl_extent_check(ooa_io, pending_io, 11061 (lun->serseq == CTL_LUN_SERSEQ_ON))); 11062 return (CTL_ACTION_PASS); 11063 case CTL_SER_EXTENTSEQ: 11064 if (lun->serseq != CTL_LUN_SERSEQ_OFF) 11065 return (ctl_extent_check_seq(ooa_io, pending_io)); 11066 return (CTL_ACTION_PASS); 11067 case CTL_SER_PASS: 11068 return (CTL_ACTION_PASS); 11069 case CTL_SER_BLOCKOPT: 11070 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 11071 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 11072 return (CTL_ACTION_BLOCK); 11073 return (CTL_ACTION_PASS); 11074 case CTL_SER_SKIP: 11075 return (CTL_ACTION_SKIP); 11076 default: 11077 panic("invalid serialization value %d", 11078 serialize_row[pending_entry->seridx]); 11079 } 11080 11081 return (CTL_ACTION_ERROR); 11082} 11083 11084/* 11085 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 11086 * Assumptions: 11087 * - pending_io is generally either incoming, or on the blocked queue 11088 * - starting I/O is the I/O we want to start the check with. 11089 */ 11090static ctl_action 11091ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 11092 union ctl_io *starting_io) 11093{ 11094 union ctl_io *ooa_io; 11095 ctl_action action; 11096 11097 mtx_assert(&lun->lun_lock, MA_OWNED); 11098 11099 /* 11100 * Run back along the OOA queue, starting with the current 11101 * blocked I/O and going through every I/O before it on the 11102 * queue. If starting_io is NULL, we'll just end up returning 11103 * CTL_ACTION_PASS. 11104 */ 11105 for (ooa_io = starting_io; ooa_io != NULL; 11106 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 11107 ooa_links)){ 11108 11109 /* 11110 * This routine just checks to see whether 11111 * cur_blocked is blocked by ooa_io, which is ahead 11112 * of it in the queue. It doesn't queue/dequeue 11113 * cur_blocked. 11114 */ 11115 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 11116 switch (action) { 11117 case CTL_ACTION_BLOCK: 11118 case CTL_ACTION_OVERLAP: 11119 case CTL_ACTION_OVERLAP_TAG: 11120 case CTL_ACTION_SKIP: 11121 case CTL_ACTION_ERROR: 11122 return (action); 11123 break; /* NOTREACHED */ 11124 case CTL_ACTION_PASS: 11125 break; 11126 default: 11127 panic("invalid action %d", action); 11128 break; /* NOTREACHED */ 11129 } 11130 } 11131 11132 return (CTL_ACTION_PASS); 11133} 11134 11135/* 11136 * Assumptions: 11137 * - An I/O has just completed, and has been removed from the per-LUN OOA 11138 * queue, so some items on the blocked queue may now be unblocked. 11139 */ 11140static int 11141ctl_check_blocked(struct ctl_lun *lun) 11142{ 11143 union ctl_io *cur_blocked, *next_blocked; 11144 11145 mtx_assert(&lun->lun_lock, MA_OWNED); 11146 11147 /* 11148 * Run forward from the head of the blocked queue, checking each 11149 * entry against the I/Os prior to it on the OOA queue to see if 11150 * there is still any blockage. 11151 * 11152 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 11153 * with our removing a variable on it while it is traversing the 11154 * list. 11155 */ 11156 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 11157 cur_blocked != NULL; cur_blocked = next_blocked) { 11158 union ctl_io *prev_ooa; 11159 ctl_action action; 11160 11161 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 11162 blocked_links); 11163 11164 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11165 ctl_ooaq, ooa_links); 11166 11167 /* 11168 * If cur_blocked happens to be the first item in the OOA 11169 * queue now, prev_ooa will be NULL, and the action 11170 * returned will just be CTL_ACTION_PASS. 11171 */ 11172 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11173 11174 switch (action) { 11175 case CTL_ACTION_BLOCK: 11176 /* Nothing to do here, still blocked */ 11177 break; 11178 case CTL_ACTION_OVERLAP: 11179 case CTL_ACTION_OVERLAP_TAG: 11180 /* 11181 * This shouldn't happen! In theory we've already 11182 * checked this command for overlap... 11183 */ 11184 break; 11185 case CTL_ACTION_PASS: 11186 case CTL_ACTION_SKIP: { 11187 const struct ctl_cmd_entry *entry; 11188 int isc_retval; 11189 11190 /* 11191 * The skip case shouldn't happen, this transaction 11192 * should have never made it onto the blocked queue. 11193 */ 11194 /* 11195 * This I/O is no longer blocked, we can remove it 11196 * from the blocked queue. Since this is a TAILQ 11197 * (doubly linked list), we can do O(1) removals 11198 * from any place on the list. 11199 */ 11200 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11201 blocked_links); 11202 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11203 11204 if (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC){ 11205 /* 11206 * Need to send IO back to original side to 11207 * run 11208 */ 11209 union ctl_ha_msg msg_info; 11210 11211 msg_info.hdr.original_sc = 11212 cur_blocked->io_hdr.original_sc; 11213 msg_info.hdr.serializing_sc = cur_blocked; 11214 msg_info.hdr.msg_type = CTL_MSG_R2R; 11215 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11216 &msg_info, sizeof(msg_info), 0)) > 11217 CTL_HA_STATUS_SUCCESS) { 11218 printf("CTL:Check Blocked error from " 11219 "ctl_ha_msg_send %d\n", 11220 isc_retval); 11221 } 11222 break; 11223 } 11224 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 11225 11226 /* 11227 * Check this I/O for LUN state changes that may 11228 * have happened while this command was blocked. 11229 * The LUN state may have been changed by a command 11230 * ahead of us in the queue, so we need to re-check 11231 * for any states that can be caused by SCSI 11232 * commands. 11233 */ 11234 if (ctl_scsiio_lun_check(lun, entry, 11235 &cur_blocked->scsiio) == 0) { 11236 cur_blocked->io_hdr.flags |= 11237 CTL_FLAG_IS_WAS_ON_RTR; 11238 ctl_enqueue_rtr(cur_blocked); 11239 } else 11240 ctl_done(cur_blocked); 11241 break; 11242 } 11243 default: 11244 /* 11245 * This probably shouldn't happen -- we shouldn't 11246 * get CTL_ACTION_ERROR, or anything else. 11247 */ 11248 break; 11249 } 11250 } 11251 11252 return (CTL_RETVAL_COMPLETE); 11253} 11254 11255/* 11256 * This routine (with one exception) checks LUN flags that can be set by 11257 * commands ahead of us in the OOA queue. These flags have to be checked 11258 * when a command initially comes in, and when we pull a command off the 11259 * blocked queue and are preparing to execute it. The reason we have to 11260 * check these flags for commands on the blocked queue is that the LUN 11261 * state may have been changed by a command ahead of us while we're on the 11262 * blocked queue. 11263 * 11264 * Ordering is somewhat important with these checks, so please pay 11265 * careful attention to the placement of any new checks. 11266 */ 11267static int 11268ctl_scsiio_lun_check(struct ctl_lun *lun, 11269 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11270{ 11271 struct ctl_softc *softc = lun->ctl_softc; 11272 int retval; 11273 uint32_t residx; 11274 11275 retval = 0; 11276 11277 mtx_assert(&lun->lun_lock, MA_OWNED); 11278 11279 /* 11280 * If this shelf is a secondary shelf controller, we have to reject 11281 * any media access commands. 11282 */ 11283 if ((softc->flags & CTL_FLAG_ACTIVE_SHELF) == 0 && 11284 (entry->flags & CTL_CMD_FLAG_OK_ON_SECONDARY) == 0) { 11285 ctl_set_lun_standby(ctsio); 11286 retval = 1; 11287 goto bailout; 11288 } 11289 11290 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11291 if (lun->flags & CTL_LUN_READONLY) { 11292 ctl_set_sense(ctsio, /*current_error*/ 1, 11293 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11294 /*asc*/ 0x27, /*ascq*/ 0x01, SSD_ELEM_NONE); 11295 retval = 1; 11296 goto bailout; 11297 } 11298 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT] 11299 .eca_and_aen & SCP_SWP) != 0) { 11300 ctl_set_sense(ctsio, /*current_error*/ 1, 11301 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11302 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11303 retval = 1; 11304 goto bailout; 11305 } 11306 } 11307 11308 /* 11309 * Check for a reservation conflict. If this command isn't allowed 11310 * even on reserved LUNs, and if this initiator isn't the one who 11311 * reserved us, reject the command with a reservation conflict. 11312 */ 11313 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 11314 if ((lun->flags & CTL_LUN_RESERVED) 11315 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11316 if (lun->res_idx != residx) { 11317 ctl_set_reservation_conflict(ctsio); 11318 retval = 1; 11319 goto bailout; 11320 } 11321 } 11322 11323 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0 || 11324 (entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV)) { 11325 /* No reservation or command is allowed. */; 11326 } else if ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_WRESV) && 11327 (lun->res_type == SPR_TYPE_WR_EX || 11328 lun->res_type == SPR_TYPE_WR_EX_RO || 11329 lun->res_type == SPR_TYPE_WR_EX_AR)) { 11330 /* The command is allowed for Write Exclusive resv. */; 11331 } else { 11332 /* 11333 * if we aren't registered or it's a res holder type 11334 * reservation and this isn't the res holder then set a 11335 * conflict. 11336 */ 11337 if (ctl_get_prkey(lun, residx) == 0 11338 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 11339 ctl_set_reservation_conflict(ctsio); 11340 retval = 1; 11341 goto bailout; 11342 } 11343 11344 } 11345 11346 if ((lun->flags & CTL_LUN_OFFLINE) 11347 && ((entry->flags & CTL_CMD_FLAG_OK_ON_OFFLINE) == 0)) { 11348 ctl_set_lun_not_ready(ctsio); 11349 retval = 1; 11350 goto bailout; 11351 } 11352 11353 /* 11354 * If the LUN is stopped, see if this particular command is allowed 11355 * for a stopped lun. Otherwise, reject it with 0x04,0x02. 11356 */ 11357 if ((lun->flags & CTL_LUN_STOPPED) 11358 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 11359 /* "Logical unit not ready, initializing cmd. required" */ 11360 ctl_set_lun_stopped(ctsio); 11361 retval = 1; 11362 goto bailout; 11363 } 11364 11365 if ((lun->flags & CTL_LUN_INOPERABLE) 11366 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 11367 /* "Medium format corrupted" */ 11368 ctl_set_medium_format_corrupted(ctsio); 11369 retval = 1; 11370 goto bailout; 11371 } 11372 11373bailout: 11374 return (retval); 11375 11376} 11377 11378static void 11379ctl_failover_io(union ctl_io *io, int have_lock) 11380{ 11381 ctl_set_busy(&io->scsiio); 11382 ctl_done(io); 11383} 11384 11385static void 11386ctl_failover(void) 11387{ 11388 struct ctl_lun *lun; 11389 struct ctl_softc *softc; 11390 union ctl_io *next_io, *pending_io; 11391 union ctl_io *io; 11392 int lun_idx; 11393 11394 softc = control_softc; 11395 11396 mtx_lock(&softc->ctl_lock); 11397 /* 11398 * Remove any cmds from the other SC from the rtr queue. These 11399 * will obviously only be for LUNs for which we're the primary. 11400 * We can't send status or get/send data for these commands. 11401 * Since they haven't been executed yet, we can just remove them. 11402 * We'll either abort them or delete them below, depending on 11403 * which HA mode we're in. 11404 */ 11405#ifdef notyet 11406 mtx_lock(&softc->queue_lock); 11407 for (io = (union ctl_io *)STAILQ_FIRST(&softc->rtr_queue); 11408 io != NULL; io = next_io) { 11409 next_io = (union ctl_io *)STAILQ_NEXT(&io->io_hdr, links); 11410 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11411 STAILQ_REMOVE(&softc->rtr_queue, &io->io_hdr, 11412 ctl_io_hdr, links); 11413 } 11414 mtx_unlock(&softc->queue_lock); 11415#endif 11416 11417 for (lun_idx=0; lun_idx < softc->num_luns; lun_idx++) { 11418 lun = softc->ctl_luns[lun_idx]; 11419 if (lun==NULL) 11420 continue; 11421 11422 /* 11423 * Processor LUNs are primary on both sides. 11424 * XXX will this always be true? 11425 */ 11426 if (lun->be_lun->lun_type == T_PROCESSOR) 11427 continue; 11428 11429 if ((lun->flags & CTL_LUN_PRIMARY_SC) 11430 && (softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11431 printf("FAILOVER: primary lun %d\n", lun_idx); 11432 /* 11433 * Remove all commands from the other SC. First from the 11434 * blocked queue then from the ooa queue. Once we have 11435 * removed them. Call ctl_check_blocked to see if there 11436 * is anything that can run. 11437 */ 11438 for (io = (union ctl_io *)TAILQ_FIRST( 11439 &lun->blocked_queue); io != NULL; io = next_io) { 11440 11441 next_io = (union ctl_io *)TAILQ_NEXT( 11442 &io->io_hdr, blocked_links); 11443 11444 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11445 TAILQ_REMOVE(&lun->blocked_queue, 11446 &io->io_hdr,blocked_links); 11447 io->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11448 TAILQ_REMOVE(&lun->ooa_queue, 11449 &io->io_hdr, ooa_links); 11450 11451 ctl_free_io(io); 11452 } 11453 } 11454 11455 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11456 io != NULL; io = next_io) { 11457 11458 next_io = (union ctl_io *)TAILQ_NEXT( 11459 &io->io_hdr, ooa_links); 11460 11461 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11462 11463 TAILQ_REMOVE(&lun->ooa_queue, 11464 &io->io_hdr, 11465 ooa_links); 11466 11467 ctl_free_io(io); 11468 } 11469 } 11470 ctl_check_blocked(lun); 11471 } else if ((lun->flags & CTL_LUN_PRIMARY_SC) 11472 && (softc->ha_mode == CTL_HA_MODE_XFER)) { 11473 11474 printf("FAILOVER: primary lun %d\n", lun_idx); 11475 /* 11476 * Abort all commands from the other SC. We can't 11477 * send status back for them now. These should get 11478 * cleaned up when they are completed or come out 11479 * for a datamove operation. 11480 */ 11481 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11482 io != NULL; io = next_io) { 11483 next_io = (union ctl_io *)TAILQ_NEXT( 11484 &io->io_hdr, ooa_links); 11485 11486 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11487 io->io_hdr.flags |= CTL_FLAG_ABORT; 11488 } 11489 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11490 && (softc->ha_mode == CTL_HA_MODE_XFER)) { 11491 11492 printf("FAILOVER: secondary lun %d\n", lun_idx); 11493 11494 lun->flags |= CTL_LUN_PRIMARY_SC; 11495 11496 /* 11497 * We send all I/O that was sent to this controller 11498 * and redirected to the other side back with 11499 * busy status, and have the initiator retry it. 11500 * Figuring out how much data has been transferred, 11501 * etc. and picking up where we left off would be 11502 * very tricky. 11503 * 11504 * XXX KDM need to remove I/O from the blocked 11505 * queue as well! 11506 */ 11507 for (pending_io = (union ctl_io *)TAILQ_FIRST( 11508 &lun->ooa_queue); pending_io != NULL; 11509 pending_io = next_io) { 11510 11511 next_io = (union ctl_io *)TAILQ_NEXT( 11512 &pending_io->io_hdr, ooa_links); 11513 11514 pending_io->io_hdr.flags &= 11515 ~CTL_FLAG_SENT_2OTHER_SC; 11516 11517 if (pending_io->io_hdr.flags & 11518 CTL_FLAG_IO_ACTIVE) { 11519 pending_io->io_hdr.flags |= 11520 CTL_FLAG_FAILOVER; 11521 } else { 11522 ctl_set_busy(&pending_io->scsiio); 11523 ctl_done(pending_io); 11524 } 11525 } 11526 11527 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 11528 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11529 && (softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11530 printf("FAILOVER: secondary lun %d\n", lun_idx); 11531 /* 11532 * if the first io on the OOA is not on the RtR queue 11533 * add it. 11534 */ 11535 lun->flags |= CTL_LUN_PRIMARY_SC; 11536 11537 pending_io = (union ctl_io *)TAILQ_FIRST( 11538 &lun->ooa_queue); 11539 if (pending_io==NULL) { 11540 printf("Nothing on OOA queue\n"); 11541 continue; 11542 } 11543 11544 pending_io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11545 if ((pending_io->io_hdr.flags & 11546 CTL_FLAG_IS_WAS_ON_RTR) == 0) { 11547 pending_io->io_hdr.flags |= 11548 CTL_FLAG_IS_WAS_ON_RTR; 11549 ctl_enqueue_rtr(pending_io); 11550 } 11551#if 0 11552 else 11553 { 11554 printf("Tag 0x%04x is running\n", 11555 pending_io->scsiio.tag_num); 11556 } 11557#endif 11558 11559 next_io = (union ctl_io *)TAILQ_NEXT( 11560 &pending_io->io_hdr, ooa_links); 11561 for (pending_io=next_io; pending_io != NULL; 11562 pending_io = next_io) { 11563 pending_io->io_hdr.flags &= 11564 ~CTL_FLAG_SENT_2OTHER_SC; 11565 next_io = (union ctl_io *)TAILQ_NEXT( 11566 &pending_io->io_hdr, ooa_links); 11567 if (pending_io->io_hdr.flags & 11568 CTL_FLAG_IS_WAS_ON_RTR) { 11569#if 0 11570 printf("Tag 0x%04x is running\n", 11571 pending_io->scsiio.tag_num); 11572#endif 11573 continue; 11574 } 11575 11576 switch (ctl_check_ooa(lun, pending_io, 11577 (union ctl_io *)TAILQ_PREV( 11578 &pending_io->io_hdr, ctl_ooaq, 11579 ooa_links))) { 11580 11581 case CTL_ACTION_BLOCK: 11582 TAILQ_INSERT_TAIL(&lun->blocked_queue, 11583 &pending_io->io_hdr, 11584 blocked_links); 11585 pending_io->io_hdr.flags |= 11586 CTL_FLAG_BLOCKED; 11587 break; 11588 case CTL_ACTION_PASS: 11589 case CTL_ACTION_SKIP: 11590 pending_io->io_hdr.flags |= 11591 CTL_FLAG_IS_WAS_ON_RTR; 11592 ctl_enqueue_rtr(pending_io); 11593 break; 11594 case CTL_ACTION_OVERLAP: 11595 ctl_set_overlapped_cmd( 11596 (struct ctl_scsiio *)pending_io); 11597 ctl_done(pending_io); 11598 break; 11599 case CTL_ACTION_OVERLAP_TAG: 11600 ctl_set_overlapped_tag( 11601 (struct ctl_scsiio *)pending_io, 11602 pending_io->scsiio.tag_num & 0xff); 11603 ctl_done(pending_io); 11604 break; 11605 case CTL_ACTION_ERROR: 11606 default: 11607 ctl_set_internal_failure( 11608 (struct ctl_scsiio *)pending_io, 11609 0, // sks_valid 11610 0); //retry count 11611 ctl_done(pending_io); 11612 break; 11613 } 11614 } 11615 11616 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 11617 } else { 11618 panic("Unhandled HA mode failover, LUN flags = %#x, " 11619 "ha_mode = #%x", lun->flags, softc->ha_mode); 11620 } 11621 } 11622 ctl_pause_rtr = 0; 11623 mtx_unlock(&softc->ctl_lock); 11624} 11625 11626static void 11627ctl_clear_ua(struct ctl_softc *ctl_softc, uint32_t initidx, 11628 ctl_ua_type ua_type) 11629{ 11630 struct ctl_lun *lun; 11631 ctl_ua_type *pu; 11632 11633 mtx_assert(&ctl_softc->ctl_lock, MA_OWNED); 11634 11635 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) { 11636 mtx_lock(&lun->lun_lock); 11637 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 11638 if (pu != NULL) 11639 pu[initidx % CTL_MAX_INIT_PER_PORT] &= ~ua_type; 11640 mtx_unlock(&lun->lun_lock); 11641 } 11642} 11643 11644static int 11645ctl_scsiio_precheck(struct ctl_softc *softc, struct ctl_scsiio *ctsio) 11646{ 11647 struct ctl_lun *lun; 11648 const struct ctl_cmd_entry *entry; 11649 uint32_t initidx, targ_lun; 11650 int retval; 11651 11652 retval = 0; 11653 11654 lun = NULL; 11655 11656 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11657 if ((targ_lun < CTL_MAX_LUNS) 11658 && ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 11659 /* 11660 * If the LUN is invalid, pretend that it doesn't exist. 11661 * It will go away as soon as all pending I/O has been 11662 * completed. 11663 */ 11664 mtx_lock(&lun->lun_lock); 11665 if (lun->flags & CTL_LUN_DISABLED) { 11666 mtx_unlock(&lun->lun_lock); 11667 lun = NULL; 11668 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11669 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11670 } else { 11671 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11672 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11673 lun->be_lun; 11674 if (lun->be_lun->lun_type == T_PROCESSOR) { 11675 ctsio->io_hdr.flags |= CTL_FLAG_CONTROL_DEV; 11676 } 11677 11678 /* 11679 * Every I/O goes into the OOA queue for a 11680 * particular LUN, and stays there until completion. 11681 */ 11682#ifdef CTL_TIME_IO 11683 if (TAILQ_EMPTY(&lun->ooa_queue)) { 11684 lun->idle_time += getsbinuptime() - 11685 lun->last_busy; 11686 } 11687#endif 11688 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11689 ooa_links); 11690 } 11691 } else { 11692 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11693 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11694 } 11695 11696 /* Get command entry and return error if it is unsuppotyed. */ 11697 entry = ctl_validate_command(ctsio); 11698 if (entry == NULL) { 11699 if (lun) 11700 mtx_unlock(&lun->lun_lock); 11701 return (retval); 11702 } 11703 11704 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11705 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11706 11707 /* 11708 * Check to see whether we can send this command to LUNs that don't 11709 * exist. This should pretty much only be the case for inquiry 11710 * and request sense. Further checks, below, really require having 11711 * a LUN, so we can't really check the command anymore. Just put 11712 * it on the rtr queue. 11713 */ 11714 if (lun == NULL) { 11715 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) { 11716 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11717 ctl_enqueue_rtr((union ctl_io *)ctsio); 11718 return (retval); 11719 } 11720 11721 ctl_set_unsupported_lun(ctsio); 11722 ctl_done((union ctl_io *)ctsio); 11723 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11724 return (retval); 11725 } else { 11726 /* 11727 * Make sure we support this particular command on this LUN. 11728 * e.g., we don't support writes to the control LUN. 11729 */ 11730 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11731 mtx_unlock(&lun->lun_lock); 11732 ctl_set_invalid_opcode(ctsio); 11733 ctl_done((union ctl_io *)ctsio); 11734 return (retval); 11735 } 11736 } 11737 11738 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11739 11740#ifdef CTL_WITH_CA 11741 /* 11742 * If we've got a request sense, it'll clear the contingent 11743 * allegiance condition. Otherwise, if we have a CA condition for 11744 * this initiator, clear it, because it sent down a command other 11745 * than request sense. 11746 */ 11747 if ((ctsio->cdb[0] != REQUEST_SENSE) 11748 && (ctl_is_set(lun->have_ca, initidx))) 11749 ctl_clear_mask(lun->have_ca, initidx); 11750#endif 11751 11752 /* 11753 * If the command has this flag set, it handles its own unit 11754 * attention reporting, we shouldn't do anything. Otherwise we 11755 * check for any pending unit attentions, and send them back to the 11756 * initiator. We only do this when a command initially comes in, 11757 * not when we pull it off the blocked queue. 11758 * 11759 * According to SAM-3, section 5.3.2, the order that things get 11760 * presented back to the host is basically unit attentions caused 11761 * by some sort of reset event, busy status, reservation conflicts 11762 * or task set full, and finally any other status. 11763 * 11764 * One issue here is that some of the unit attentions we report 11765 * don't fall into the "reset" category (e.g. "reported luns data 11766 * has changed"). So reporting it here, before the reservation 11767 * check, may be technically wrong. I guess the only thing to do 11768 * would be to check for and report the reset events here, and then 11769 * check for the other unit attention types after we check for a 11770 * reservation conflict. 11771 * 11772 * XXX KDM need to fix this 11773 */ 11774 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11775 ctl_ua_type ua_type; 11776 scsi_sense_data_type sense_format; 11777 11778 if (lun->flags & CTL_LUN_SENSE_DESC) 11779 sense_format = SSD_TYPE_DESC; 11780 else 11781 sense_format = SSD_TYPE_FIXED; 11782 11783 ua_type = ctl_build_ua(lun, initidx, &ctsio->sense_data, 11784 sense_format); 11785 if (ua_type != CTL_UA_NONE) { 11786 mtx_unlock(&lun->lun_lock); 11787 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11788 ctsio->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 11789 ctsio->sense_len = SSD_FULL_SIZE; 11790 ctl_done((union ctl_io *)ctsio); 11791 return (retval); 11792 } 11793 } 11794 11795 11796 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 11797 mtx_unlock(&lun->lun_lock); 11798 ctl_done((union ctl_io *)ctsio); 11799 return (retval); 11800 } 11801 11802 /* 11803 * XXX CHD this is where we want to send IO to other side if 11804 * this LUN is secondary on this SC. We will need to make a copy 11805 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11806 * the copy we send as FROM_OTHER. 11807 * We also need to stuff the address of the original IO so we can 11808 * find it easily. Something similar will need be done on the other 11809 * side so when we are done we can find the copy. 11810 */ 11811 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11812 union ctl_ha_msg msg_info; 11813 int isc_retval; 11814 11815 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11816 11817 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11818 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11819#if 0 11820 printf("1. ctsio %p\n", ctsio); 11821#endif 11822 msg_info.hdr.serializing_sc = NULL; 11823 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11824 msg_info.scsi.tag_num = ctsio->tag_num; 11825 msg_info.scsi.tag_type = ctsio->tag_type; 11826 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11827 11828 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11829 11830 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11831 (void *)&msg_info, sizeof(msg_info), 0)) > 11832 CTL_HA_STATUS_SUCCESS) { 11833 printf("CTL:precheck, ctl_ha_msg_send returned %d\n", 11834 isc_retval); 11835 printf("CTL:opcode is %x\n", ctsio->cdb[0]); 11836 } else { 11837#if 0 11838 printf("CTL:Precheck sent msg, opcode is %x\n",opcode); 11839#endif 11840 } 11841 11842 /* 11843 * XXX KDM this I/O is off the incoming queue, but hasn't 11844 * been inserted on any other queue. We may need to come 11845 * up with a holding queue while we wait for serialization 11846 * so that we have an idea of what we're waiting for from 11847 * the other side. 11848 */ 11849 mtx_unlock(&lun->lun_lock); 11850 return (retval); 11851 } 11852 11853 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11854 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11855 ctl_ooaq, ooa_links))) { 11856 case CTL_ACTION_BLOCK: 11857 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11858 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11859 blocked_links); 11860 mtx_unlock(&lun->lun_lock); 11861 return (retval); 11862 case CTL_ACTION_PASS: 11863 case CTL_ACTION_SKIP: 11864 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11865 mtx_unlock(&lun->lun_lock); 11866 ctl_enqueue_rtr((union ctl_io *)ctsio); 11867 break; 11868 case CTL_ACTION_OVERLAP: 11869 mtx_unlock(&lun->lun_lock); 11870 ctl_set_overlapped_cmd(ctsio); 11871 ctl_done((union ctl_io *)ctsio); 11872 break; 11873 case CTL_ACTION_OVERLAP_TAG: 11874 mtx_unlock(&lun->lun_lock); 11875 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11876 ctl_done((union ctl_io *)ctsio); 11877 break; 11878 case CTL_ACTION_ERROR: 11879 default: 11880 mtx_unlock(&lun->lun_lock); 11881 ctl_set_internal_failure(ctsio, 11882 /*sks_valid*/ 0, 11883 /*retry_count*/ 0); 11884 ctl_done((union ctl_io *)ctsio); 11885 break; 11886 } 11887 return (retval); 11888} 11889 11890const struct ctl_cmd_entry * 11891ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11892{ 11893 const struct ctl_cmd_entry *entry; 11894 int service_action; 11895 11896 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11897 if (sa) 11898 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11899 if (entry->flags & CTL_CMD_FLAG_SA5) { 11900 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11901 entry = &((const struct ctl_cmd_entry *) 11902 entry->execute)[service_action]; 11903 } 11904 return (entry); 11905} 11906 11907const struct ctl_cmd_entry * 11908ctl_validate_command(struct ctl_scsiio *ctsio) 11909{ 11910 const struct ctl_cmd_entry *entry; 11911 int i, sa; 11912 uint8_t diff; 11913 11914 entry = ctl_get_cmd_entry(ctsio, &sa); 11915 if (entry->execute == NULL) { 11916 if (sa) 11917 ctl_set_invalid_field(ctsio, 11918 /*sks_valid*/ 1, 11919 /*command*/ 1, 11920 /*field*/ 1, 11921 /*bit_valid*/ 1, 11922 /*bit*/ 4); 11923 else 11924 ctl_set_invalid_opcode(ctsio); 11925 ctl_done((union ctl_io *)ctsio); 11926 return (NULL); 11927 } 11928 KASSERT(entry->length > 0, 11929 ("Not defined length for command 0x%02x/0x%02x", 11930 ctsio->cdb[0], ctsio->cdb[1])); 11931 for (i = 1; i < entry->length; i++) { 11932 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11933 if (diff == 0) 11934 continue; 11935 ctl_set_invalid_field(ctsio, 11936 /*sks_valid*/ 1, 11937 /*command*/ 1, 11938 /*field*/ i, 11939 /*bit_valid*/ 1, 11940 /*bit*/ fls(diff) - 1); 11941 ctl_done((union ctl_io *)ctsio); 11942 return (NULL); 11943 } 11944 return (entry); 11945} 11946 11947static int 11948ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11949{ 11950 11951 switch (lun_type) { 11952 case T_PROCESSOR: 11953 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) && 11954 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11955 return (0); 11956 break; 11957 case T_DIRECT: 11958 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) && 11959 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11960 return (0); 11961 break; 11962 default: 11963 return (0); 11964 } 11965 return (1); 11966} 11967 11968static int 11969ctl_scsiio(struct ctl_scsiio *ctsio) 11970{ 11971 int retval; 11972 const struct ctl_cmd_entry *entry; 11973 11974 retval = CTL_RETVAL_COMPLETE; 11975 11976 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11977 11978 entry = ctl_get_cmd_entry(ctsio, NULL); 11979 11980 /* 11981 * If this I/O has been aborted, just send it straight to 11982 * ctl_done() without executing it. 11983 */ 11984 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11985 ctl_done((union ctl_io *)ctsio); 11986 goto bailout; 11987 } 11988 11989 /* 11990 * All the checks should have been handled by ctl_scsiio_precheck(). 11991 * We should be clear now to just execute the I/O. 11992 */ 11993 retval = entry->execute(ctsio); 11994 11995bailout: 11996 return (retval); 11997} 11998 11999/* 12000 * Since we only implement one target right now, a bus reset simply resets 12001 * our single target. 12002 */ 12003static int 12004ctl_bus_reset(struct ctl_softc *softc, union ctl_io *io) 12005{ 12006 return(ctl_target_reset(softc, io, CTL_UA_BUS_RESET)); 12007} 12008 12009static int 12010ctl_target_reset(struct ctl_softc *softc, union ctl_io *io, 12011 ctl_ua_type ua_type) 12012{ 12013 struct ctl_lun *lun; 12014 int retval; 12015 12016 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12017 union ctl_ha_msg msg_info; 12018 12019 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 12020 msg_info.hdr.nexus = io->io_hdr.nexus; 12021 if (ua_type==CTL_UA_TARG_RESET) 12022 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 12023 else 12024 msg_info.task.task_action = CTL_TASK_BUS_RESET; 12025 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12026 msg_info.hdr.original_sc = NULL; 12027 msg_info.hdr.serializing_sc = NULL; 12028 if (CTL_HA_STATUS_SUCCESS != ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12029 (void *)&msg_info, sizeof(msg_info), 0)) { 12030 } 12031 } 12032 retval = 0; 12033 12034 mtx_lock(&softc->ctl_lock); 12035 STAILQ_FOREACH(lun, &softc->lun_list, links) 12036 retval += ctl_lun_reset(lun, io, ua_type); 12037 mtx_unlock(&softc->ctl_lock); 12038 12039 return (retval); 12040} 12041 12042/* 12043 * The LUN should always be set. The I/O is optional, and is used to 12044 * distinguish between I/Os sent by this initiator, and by other 12045 * initiators. We set unit attention for initiators other than this one. 12046 * SAM-3 is vague on this point. It does say that a unit attention should 12047 * be established for other initiators when a LUN is reset (see section 12048 * 5.7.3), but it doesn't specifically say that the unit attention should 12049 * be established for this particular initiator when a LUN is reset. Here 12050 * is the relevant text, from SAM-3 rev 8: 12051 * 12052 * 5.7.2 When a SCSI initiator port aborts its own tasks 12053 * 12054 * When a SCSI initiator port causes its own task(s) to be aborted, no 12055 * notification that the task(s) have been aborted shall be returned to 12056 * the SCSI initiator port other than the completion response for the 12057 * command or task management function action that caused the task(s) to 12058 * be aborted and notification(s) associated with related effects of the 12059 * action (e.g., a reset unit attention condition). 12060 * 12061 * XXX KDM for now, we're setting unit attention for all initiators. 12062 */ 12063static int 12064ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 12065{ 12066 union ctl_io *xio; 12067#if 0 12068 uint32_t initidx; 12069#endif 12070#ifdef CTL_WITH_CA 12071 int i; 12072#endif 12073 12074 mtx_lock(&lun->lun_lock); 12075 /* 12076 * Run through the OOA queue and abort each I/O. 12077 */ 12078 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12079 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12080 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 12081 } 12082 12083 /* 12084 * This version sets unit attention for every 12085 */ 12086#if 0 12087 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12088 ctl_est_ua_all(lun, initidx, ua_type); 12089#else 12090 ctl_est_ua_all(lun, -1, ua_type); 12091#endif 12092 12093 /* 12094 * A reset (any kind, really) clears reservations established with 12095 * RESERVE/RELEASE. It does not clear reservations established 12096 * with PERSISTENT RESERVE OUT, but we don't support that at the 12097 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 12098 * reservations made with the RESERVE/RELEASE commands, because 12099 * those commands are obsolete in SPC-3. 12100 */ 12101 lun->flags &= ~CTL_LUN_RESERVED; 12102 12103#ifdef CTL_WITH_CA 12104 for (i = 0; i < CTL_MAX_INITIATORS; i++) 12105 ctl_clear_mask(lun->have_ca, i); 12106#endif 12107 mtx_unlock(&lun->lun_lock); 12108 12109 return (0); 12110} 12111 12112static void 12113ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 12114 int other_sc) 12115{ 12116 union ctl_io *xio; 12117 12118 mtx_assert(&lun->lun_lock, MA_OWNED); 12119 12120 /* 12121 * Run through the OOA queue and attempt to find the given I/O. 12122 * The target port, initiator ID, tag type and tag number have to 12123 * match the values that we got from the initiator. If we have an 12124 * untagged command to abort, simply abort the first untagged command 12125 * we come to. We only allow one untagged command at a time of course. 12126 */ 12127 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12128 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12129 12130 if ((targ_port == UINT32_MAX || 12131 targ_port == xio->io_hdr.nexus.targ_port) && 12132 (init_id == UINT32_MAX || 12133 init_id == xio->io_hdr.nexus.initid.id)) { 12134 if (targ_port != xio->io_hdr.nexus.targ_port || 12135 init_id != xio->io_hdr.nexus.initid.id) 12136 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 12137 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12138 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12139 union ctl_ha_msg msg_info; 12140 12141 msg_info.hdr.nexus = xio->io_hdr.nexus; 12142 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12143 msg_info.task.tag_num = xio->scsiio.tag_num; 12144 msg_info.task.tag_type = xio->scsiio.tag_type; 12145 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12146 msg_info.hdr.original_sc = NULL; 12147 msg_info.hdr.serializing_sc = NULL; 12148 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12149 (void *)&msg_info, sizeof(msg_info), 0); 12150 } 12151 } 12152 } 12153} 12154 12155static int 12156ctl_abort_task_set(union ctl_io *io) 12157{ 12158 struct ctl_softc *softc = control_softc; 12159 struct ctl_lun *lun; 12160 uint32_t targ_lun; 12161 12162 /* 12163 * Look up the LUN. 12164 */ 12165 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12166 mtx_lock(&softc->ctl_lock); 12167 if ((targ_lun < CTL_MAX_LUNS) && (softc->ctl_luns[targ_lun] != NULL)) 12168 lun = softc->ctl_luns[targ_lun]; 12169 else { 12170 mtx_unlock(&softc->ctl_lock); 12171 return (1); 12172 } 12173 12174 mtx_lock(&lun->lun_lock); 12175 mtx_unlock(&softc->ctl_lock); 12176 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 12177 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12178 io->io_hdr.nexus.initid.id, 12179 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12180 } else { /* CTL_TASK_CLEAR_TASK_SET */ 12181 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 12182 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12183 } 12184 mtx_unlock(&lun->lun_lock); 12185 return (0); 12186} 12187 12188static int 12189ctl_i_t_nexus_reset(union ctl_io *io) 12190{ 12191 struct ctl_softc *softc = control_softc; 12192 struct ctl_lun *lun; 12193 uint32_t initidx, residx; 12194 12195 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12196 residx = ctl_get_resindex(&io->io_hdr.nexus); 12197 mtx_lock(&softc->ctl_lock); 12198 STAILQ_FOREACH(lun, &softc->lun_list, links) { 12199 mtx_lock(&lun->lun_lock); 12200 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12201 io->io_hdr.nexus.initid.id, 12202 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12203#ifdef CTL_WITH_CA 12204 ctl_clear_mask(lun->have_ca, initidx); 12205#endif 12206 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 12207 lun->flags &= ~CTL_LUN_RESERVED; 12208 ctl_est_ua(lun, initidx, CTL_UA_I_T_NEXUS_LOSS); 12209 mtx_unlock(&lun->lun_lock); 12210 } 12211 mtx_unlock(&softc->ctl_lock); 12212 return (0); 12213} 12214 12215static int 12216ctl_abort_task(union ctl_io *io) 12217{ 12218 union ctl_io *xio; 12219 struct ctl_lun *lun; 12220 struct ctl_softc *softc; 12221#if 0 12222 struct sbuf sb; 12223 char printbuf[128]; 12224#endif 12225 int found; 12226 uint32_t targ_lun; 12227 12228 softc = control_softc; 12229 found = 0; 12230 12231 /* 12232 * Look up the LUN. 12233 */ 12234 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12235 mtx_lock(&softc->ctl_lock); 12236 if ((targ_lun < CTL_MAX_LUNS) 12237 && (softc->ctl_luns[targ_lun] != NULL)) 12238 lun = softc->ctl_luns[targ_lun]; 12239 else { 12240 mtx_unlock(&softc->ctl_lock); 12241 return (1); 12242 } 12243 12244#if 0 12245 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12246 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12247#endif 12248 12249 mtx_lock(&lun->lun_lock); 12250 mtx_unlock(&softc->ctl_lock); 12251 /* 12252 * Run through the OOA queue and attempt to find the given I/O. 12253 * The target port, initiator ID, tag type and tag number have to 12254 * match the values that we got from the initiator. If we have an 12255 * untagged command to abort, simply abort the first untagged command 12256 * we come to. We only allow one untagged command at a time of course. 12257 */ 12258 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12259 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12260#if 0 12261 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12262 12263 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12264 lun->lun, xio->scsiio.tag_num, 12265 xio->scsiio.tag_type, 12266 (xio->io_hdr.blocked_links.tqe_prev 12267 == NULL) ? "" : " BLOCKED", 12268 (xio->io_hdr.flags & 12269 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12270 (xio->io_hdr.flags & 12271 CTL_FLAG_ABORT) ? " ABORT" : "", 12272 (xio->io_hdr.flags & 12273 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12274 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12275 sbuf_finish(&sb); 12276 printf("%s\n", sbuf_data(&sb)); 12277#endif 12278 12279 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 12280 || (xio->io_hdr.nexus.initid.id != io->io_hdr.nexus.initid.id) 12281 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 12282 continue; 12283 12284 /* 12285 * If the abort says that the task is untagged, the 12286 * task in the queue must be untagged. Otherwise, 12287 * we just check to see whether the tag numbers 12288 * match. This is because the QLogic firmware 12289 * doesn't pass back the tag type in an abort 12290 * request. 12291 */ 12292#if 0 12293 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12294 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12295 || (xio->scsiio.tag_num == io->taskio.tag_num)) 12296#endif 12297 /* 12298 * XXX KDM we've got problems with FC, because it 12299 * doesn't send down a tag type with aborts. So we 12300 * can only really go by the tag number... 12301 * This may cause problems with parallel SCSI. 12302 * Need to figure that out!! 12303 */ 12304 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12305 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12306 found = 1; 12307 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0 && 12308 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12309 union ctl_ha_msg msg_info; 12310 12311 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 12312 msg_info.hdr.nexus = io->io_hdr.nexus; 12313 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12314 msg_info.task.tag_num = io->taskio.tag_num; 12315 msg_info.task.tag_type = io->taskio.tag_type; 12316 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12317 msg_info.hdr.original_sc = NULL; 12318 msg_info.hdr.serializing_sc = NULL; 12319#if 0 12320 printf("Sent Abort to other side\n"); 12321#endif 12322 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12323 (void *)&msg_info, sizeof(msg_info), 0) != 12324 CTL_HA_STATUS_SUCCESS) { 12325 } 12326 } 12327#if 0 12328 printf("ctl_abort_task: found I/O to abort\n"); 12329#endif 12330 } 12331 } 12332 mtx_unlock(&lun->lun_lock); 12333 12334 if (found == 0) { 12335 /* 12336 * This isn't really an error. It's entirely possible for 12337 * the abort and command completion to cross on the wire. 12338 * This is more of an informative/diagnostic error. 12339 */ 12340#if 0 12341 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12342 "%d:%d:%d:%d tag %d type %d\n", 12343 io->io_hdr.nexus.initid.id, 12344 io->io_hdr.nexus.targ_port, 12345 io->io_hdr.nexus.targ_target.id, 12346 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12347 io->taskio.tag_type); 12348#endif 12349 } 12350 return (0); 12351} 12352 12353static void 12354ctl_run_task(union ctl_io *io) 12355{ 12356 struct ctl_softc *softc = control_softc; 12357 int retval = 1; 12358 const char *task_desc; 12359 12360 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12361 12362 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12363 ("ctl_run_task: Unextected io_type %d\n", 12364 io->io_hdr.io_type)); 12365 12366 task_desc = ctl_scsi_task_string(&io->taskio); 12367 if (task_desc != NULL) { 12368#ifdef NEEDTOPORT 12369 csevent_log(CSC_CTL | CSC_SHELF_SW | 12370 CTL_TASK_REPORT, 12371 csevent_LogType_Trace, 12372 csevent_Severity_Information, 12373 csevent_AlertLevel_Green, 12374 csevent_FRU_Firmware, 12375 csevent_FRU_Unknown, 12376 "CTL: received task: %s",task_desc); 12377#endif 12378 } else { 12379#ifdef NEEDTOPORT 12380 csevent_log(CSC_CTL | CSC_SHELF_SW | 12381 CTL_TASK_REPORT, 12382 csevent_LogType_Trace, 12383 csevent_Severity_Information, 12384 csevent_AlertLevel_Green, 12385 csevent_FRU_Firmware, 12386 csevent_FRU_Unknown, 12387 "CTL: received unknown task " 12388 "type: %d (%#x)", 12389 io->taskio.task_action, 12390 io->taskio.task_action); 12391#endif 12392 } 12393 switch (io->taskio.task_action) { 12394 case CTL_TASK_ABORT_TASK: 12395 retval = ctl_abort_task(io); 12396 break; 12397 case CTL_TASK_ABORT_TASK_SET: 12398 case CTL_TASK_CLEAR_TASK_SET: 12399 retval = ctl_abort_task_set(io); 12400 break; 12401 case CTL_TASK_CLEAR_ACA: 12402 break; 12403 case CTL_TASK_I_T_NEXUS_RESET: 12404 retval = ctl_i_t_nexus_reset(io); 12405 break; 12406 case CTL_TASK_LUN_RESET: { 12407 struct ctl_lun *lun; 12408 uint32_t targ_lun; 12409 12410 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12411 mtx_lock(&softc->ctl_lock); 12412 if ((targ_lun < CTL_MAX_LUNS) 12413 && (softc->ctl_luns[targ_lun] != NULL)) 12414 lun = softc->ctl_luns[targ_lun]; 12415 else { 12416 mtx_unlock(&softc->ctl_lock); 12417 retval = 1; 12418 break; 12419 } 12420 12421 if (!(io->io_hdr.flags & 12422 CTL_FLAG_FROM_OTHER_SC)) { 12423 union ctl_ha_msg msg_info; 12424 12425 io->io_hdr.flags |= 12426 CTL_FLAG_SENT_2OTHER_SC; 12427 msg_info.hdr.msg_type = 12428 CTL_MSG_MANAGE_TASKS; 12429 msg_info.hdr.nexus = io->io_hdr.nexus; 12430 msg_info.task.task_action = 12431 CTL_TASK_LUN_RESET; 12432 msg_info.hdr.original_sc = NULL; 12433 msg_info.hdr.serializing_sc = NULL; 12434 if (CTL_HA_STATUS_SUCCESS != 12435 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12436 (void *)&msg_info, 12437 sizeof(msg_info), 0)) { 12438 } 12439 } 12440 12441 retval = ctl_lun_reset(lun, io, 12442 CTL_UA_LUN_RESET); 12443 mtx_unlock(&softc->ctl_lock); 12444 break; 12445 } 12446 case CTL_TASK_TARGET_RESET: 12447 retval = ctl_target_reset(softc, io, CTL_UA_TARG_RESET); 12448 break; 12449 case CTL_TASK_BUS_RESET: 12450 retval = ctl_bus_reset(softc, io); 12451 break; 12452 case CTL_TASK_PORT_LOGIN: 12453 break; 12454 case CTL_TASK_PORT_LOGOUT: 12455 break; 12456 default: 12457 printf("ctl_run_task: got unknown task management event %d\n", 12458 io->taskio.task_action); 12459 break; 12460 } 12461 if (retval == 0) 12462 io->io_hdr.status = CTL_SUCCESS; 12463 else 12464 io->io_hdr.status = CTL_ERROR; 12465 ctl_done(io); 12466} 12467 12468/* 12469 * For HA operation. Handle commands that come in from the other 12470 * controller. 12471 */ 12472static void 12473ctl_handle_isc(union ctl_io *io) 12474{ 12475 int free_io; 12476 struct ctl_lun *lun; 12477 struct ctl_softc *softc; 12478 uint32_t targ_lun; 12479 12480 softc = control_softc; 12481 12482 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12483 lun = softc->ctl_luns[targ_lun]; 12484 12485 switch (io->io_hdr.msg_type) { 12486 case CTL_MSG_SERIALIZE: 12487 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12488 break; 12489 case CTL_MSG_R2R: { 12490 const struct ctl_cmd_entry *entry; 12491 12492 /* 12493 * This is only used in SER_ONLY mode. 12494 */ 12495 free_io = 0; 12496 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12497 mtx_lock(&lun->lun_lock); 12498 if (ctl_scsiio_lun_check(lun, 12499 entry, (struct ctl_scsiio *)io) != 0) { 12500 mtx_unlock(&lun->lun_lock); 12501 ctl_done(io); 12502 break; 12503 } 12504 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12505 mtx_unlock(&lun->lun_lock); 12506 ctl_enqueue_rtr(io); 12507 break; 12508 } 12509 case CTL_MSG_FINISH_IO: 12510 if (softc->ha_mode == CTL_HA_MODE_XFER) { 12511 free_io = 0; 12512 ctl_done(io); 12513 } else { 12514 free_io = 1; 12515 mtx_lock(&lun->lun_lock); 12516 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12517 ooa_links); 12518 ctl_check_blocked(lun); 12519 mtx_unlock(&lun->lun_lock); 12520 } 12521 break; 12522 case CTL_MSG_PERS_ACTION: 12523 ctl_hndl_per_res_out_on_other_sc( 12524 (union ctl_ha_msg *)&io->presio.pr_msg); 12525 free_io = 1; 12526 break; 12527 case CTL_MSG_BAD_JUJU: 12528 free_io = 0; 12529 ctl_done(io); 12530 break; 12531 case CTL_MSG_DATAMOVE: 12532 /* Only used in XFER mode */ 12533 free_io = 0; 12534 ctl_datamove_remote(io); 12535 break; 12536 case CTL_MSG_DATAMOVE_DONE: 12537 /* Only used in XFER mode */ 12538 free_io = 0; 12539 io->scsiio.be_move_done(io); 12540 break; 12541 default: 12542 free_io = 1; 12543 printf("%s: Invalid message type %d\n", 12544 __func__, io->io_hdr.msg_type); 12545 break; 12546 } 12547 if (free_io) 12548 ctl_free_io(io); 12549 12550} 12551 12552 12553/* 12554 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12555 * there is no match. 12556 */ 12557static ctl_lun_error_pattern 12558ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12559{ 12560 const struct ctl_cmd_entry *entry; 12561 ctl_lun_error_pattern filtered_pattern, pattern; 12562 12563 pattern = desc->error_pattern; 12564 12565 /* 12566 * XXX KDM we need more data passed into this function to match a 12567 * custom pattern, and we actually need to implement custom pattern 12568 * matching. 12569 */ 12570 if (pattern & CTL_LUN_PAT_CMD) 12571 return (CTL_LUN_PAT_CMD); 12572 12573 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12574 return (CTL_LUN_PAT_ANY); 12575 12576 entry = ctl_get_cmd_entry(ctsio, NULL); 12577 12578 filtered_pattern = entry->pattern & pattern; 12579 12580 /* 12581 * If the user requested specific flags in the pattern (e.g. 12582 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12583 * flags. 12584 * 12585 * If the user did not specify any flags, it doesn't matter whether 12586 * or not the command supports the flags. 12587 */ 12588 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12589 (pattern & ~CTL_LUN_PAT_MASK)) 12590 return (CTL_LUN_PAT_NONE); 12591 12592 /* 12593 * If the user asked for a range check, see if the requested LBA 12594 * range overlaps with this command's LBA range. 12595 */ 12596 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12597 uint64_t lba1; 12598 uint64_t len1; 12599 ctl_action action; 12600 int retval; 12601 12602 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12603 if (retval != 0) 12604 return (CTL_LUN_PAT_NONE); 12605 12606 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12607 desc->lba_range.len, FALSE); 12608 /* 12609 * A "pass" means that the LBA ranges don't overlap, so 12610 * this doesn't match the user's range criteria. 12611 */ 12612 if (action == CTL_ACTION_PASS) 12613 return (CTL_LUN_PAT_NONE); 12614 } 12615 12616 return (filtered_pattern); 12617} 12618 12619static void 12620ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12621{ 12622 struct ctl_error_desc *desc, *desc2; 12623 12624 mtx_assert(&lun->lun_lock, MA_OWNED); 12625 12626 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12627 ctl_lun_error_pattern pattern; 12628 /* 12629 * Check to see whether this particular command matches 12630 * the pattern in the descriptor. 12631 */ 12632 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12633 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12634 continue; 12635 12636 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12637 case CTL_LUN_INJ_ABORTED: 12638 ctl_set_aborted(&io->scsiio); 12639 break; 12640 case CTL_LUN_INJ_MEDIUM_ERR: 12641 ctl_set_medium_error(&io->scsiio); 12642 break; 12643 case CTL_LUN_INJ_UA: 12644 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12645 * OCCURRED */ 12646 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12647 break; 12648 case CTL_LUN_INJ_CUSTOM: 12649 /* 12650 * We're assuming the user knows what he is doing. 12651 * Just copy the sense information without doing 12652 * checks. 12653 */ 12654 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12655 MIN(sizeof(desc->custom_sense), 12656 sizeof(io->scsiio.sense_data))); 12657 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12658 io->scsiio.sense_len = SSD_FULL_SIZE; 12659 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12660 break; 12661 case CTL_LUN_INJ_NONE: 12662 default: 12663 /* 12664 * If this is an error injection type we don't know 12665 * about, clear the continuous flag (if it is set) 12666 * so it will get deleted below. 12667 */ 12668 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12669 break; 12670 } 12671 /* 12672 * By default, each error injection action is a one-shot 12673 */ 12674 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12675 continue; 12676 12677 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12678 12679 free(desc, M_CTL); 12680 } 12681} 12682 12683#ifdef CTL_IO_DELAY 12684static void 12685ctl_datamove_timer_wakeup(void *arg) 12686{ 12687 union ctl_io *io; 12688 12689 io = (union ctl_io *)arg; 12690 12691 ctl_datamove(io); 12692} 12693#endif /* CTL_IO_DELAY */ 12694 12695void 12696ctl_datamove(union ctl_io *io) 12697{ 12698 void (*fe_datamove)(union ctl_io *io); 12699 12700 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12701 12702 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12703 12704#ifdef CTL_TIME_IO 12705 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12706 char str[256]; 12707 char path_str[64]; 12708 struct sbuf sb; 12709 12710 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12711 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12712 12713 sbuf_cat(&sb, path_str); 12714 switch (io->io_hdr.io_type) { 12715 case CTL_IO_SCSI: 12716 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12717 sbuf_printf(&sb, "\n"); 12718 sbuf_cat(&sb, path_str); 12719 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12720 io->scsiio.tag_num, io->scsiio.tag_type); 12721 break; 12722 case CTL_IO_TASK: 12723 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12724 "Tag Type: %d\n", io->taskio.task_action, 12725 io->taskio.tag_num, io->taskio.tag_type); 12726 break; 12727 default: 12728 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12729 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12730 break; 12731 } 12732 sbuf_cat(&sb, path_str); 12733 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12734 (intmax_t)time_uptime - io->io_hdr.start_time); 12735 sbuf_finish(&sb); 12736 printf("%s", sbuf_data(&sb)); 12737 } 12738#endif /* CTL_TIME_IO */ 12739 12740#ifdef CTL_IO_DELAY 12741 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12742 struct ctl_lun *lun; 12743 12744 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12745 12746 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12747 } else { 12748 struct ctl_lun *lun; 12749 12750 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12751 if ((lun != NULL) 12752 && (lun->delay_info.datamove_delay > 0)) { 12753 struct callout *callout; 12754 12755 callout = (struct callout *)&io->io_hdr.timer_bytes; 12756 callout_init(callout, /*mpsafe*/ 1); 12757 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12758 callout_reset(callout, 12759 lun->delay_info.datamove_delay * hz, 12760 ctl_datamove_timer_wakeup, io); 12761 if (lun->delay_info.datamove_type == 12762 CTL_DELAY_TYPE_ONESHOT) 12763 lun->delay_info.datamove_delay = 0; 12764 return; 12765 } 12766 } 12767#endif 12768 12769 /* 12770 * This command has been aborted. Set the port status, so we fail 12771 * the data move. 12772 */ 12773 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12774 printf("ctl_datamove: tag 0x%04x on (%ju:%d:%ju:%d) aborted\n", 12775 io->scsiio.tag_num,(uintmax_t)io->io_hdr.nexus.initid.id, 12776 io->io_hdr.nexus.targ_port, 12777 (uintmax_t)io->io_hdr.nexus.targ_target.id, 12778 io->io_hdr.nexus.targ_lun); 12779 io->io_hdr.port_status = 31337; 12780 /* 12781 * Note that the backend, in this case, will get the 12782 * callback in its context. In other cases it may get 12783 * called in the frontend's interrupt thread context. 12784 */ 12785 io->scsiio.be_move_done(io); 12786 return; 12787 } 12788 12789 /* Don't confuse frontend with zero length data move. */ 12790 if (io->scsiio.kern_data_len == 0) { 12791 io->scsiio.be_move_done(io); 12792 return; 12793 } 12794 12795 /* 12796 * If we're in XFER mode and this I/O is from the other shelf 12797 * controller, we need to send the DMA to the other side to 12798 * actually transfer the data to/from the host. In serialize only 12799 * mode the transfer happens below CTL and ctl_datamove() is only 12800 * called on the machine that originally received the I/O. 12801 */ 12802 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12803 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12804 union ctl_ha_msg msg; 12805 uint32_t sg_entries_sent; 12806 int do_sg_copy; 12807 int i; 12808 12809 memset(&msg, 0, sizeof(msg)); 12810 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12811 msg.hdr.original_sc = io->io_hdr.original_sc; 12812 msg.hdr.serializing_sc = io; 12813 msg.hdr.nexus = io->io_hdr.nexus; 12814 msg.dt.flags = io->io_hdr.flags; 12815 /* 12816 * We convert everything into a S/G list here. We can't 12817 * pass by reference, only by value between controllers. 12818 * So we can't pass a pointer to the S/G list, only as many 12819 * S/G entries as we can fit in here. If it's possible for 12820 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12821 * then we need to break this up into multiple transfers. 12822 */ 12823 if (io->scsiio.kern_sg_entries == 0) { 12824 msg.dt.kern_sg_entries = 1; 12825 /* 12826 * If this is in cached memory, flush the cache 12827 * before we send the DMA request to the other 12828 * controller. We want to do this in either the 12829 * read or the write case. The read case is 12830 * straightforward. In the write case, we want to 12831 * make sure nothing is in the local cache that 12832 * could overwrite the DMAed data. 12833 */ 12834 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12835 /* 12836 * XXX KDM use bus_dmamap_sync() here. 12837 */ 12838 } 12839 12840 /* 12841 * Convert to a physical address if this is a 12842 * virtual address. 12843 */ 12844 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12845 msg.dt.sg_list[0].addr = 12846 io->scsiio.kern_data_ptr; 12847 } else { 12848 /* 12849 * XXX KDM use busdma here! 12850 */ 12851#if 0 12852 msg.dt.sg_list[0].addr = (void *) 12853 vtophys(io->scsiio.kern_data_ptr); 12854#endif 12855 } 12856 12857 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12858 do_sg_copy = 0; 12859 } else { 12860 struct ctl_sg_entry *sgl; 12861 12862 do_sg_copy = 1; 12863 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12864 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 12865 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12866 /* 12867 * XXX KDM use bus_dmamap_sync() here. 12868 */ 12869 } 12870 } 12871 12872 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12873 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12874 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12875 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12876 msg.dt.sg_sequence = 0; 12877 12878 /* 12879 * Loop until we've sent all of the S/G entries. On the 12880 * other end, we'll recompose these S/G entries into one 12881 * contiguous list before passing it to the 12882 */ 12883 for (sg_entries_sent = 0; sg_entries_sent < 12884 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12885 msg.dt.cur_sg_entries = MIN((sizeof(msg.dt.sg_list)/ 12886 sizeof(msg.dt.sg_list[0])), 12887 msg.dt.kern_sg_entries - sg_entries_sent); 12888 12889 if (do_sg_copy != 0) { 12890 struct ctl_sg_entry *sgl; 12891 int j; 12892 12893 sgl = (struct ctl_sg_entry *) 12894 io->scsiio.kern_data_ptr; 12895 /* 12896 * If this is in cached memory, flush the cache 12897 * before we send the DMA request to the other 12898 * controller. We want to do this in either 12899 * the * read or the write case. The read 12900 * case is straightforward. In the write 12901 * case, we want to make sure nothing is 12902 * in the local cache that could overwrite 12903 * the DMAed data. 12904 */ 12905 12906 for (i = sg_entries_sent, j = 0; 12907 i < msg.dt.cur_sg_entries; i++, j++) { 12908 if ((io->io_hdr.flags & 12909 CTL_FLAG_NO_DATASYNC) == 0) { 12910 /* 12911 * XXX KDM use bus_dmamap_sync() 12912 */ 12913 } 12914 if ((io->io_hdr.flags & 12915 CTL_FLAG_BUS_ADDR) == 0) { 12916 /* 12917 * XXX KDM use busdma. 12918 */ 12919#if 0 12920 msg.dt.sg_list[j].addr =(void *) 12921 vtophys(sgl[i].addr); 12922#endif 12923 } else { 12924 msg.dt.sg_list[j].addr = 12925 sgl[i].addr; 12926 } 12927 msg.dt.sg_list[j].len = sgl[i].len; 12928 } 12929 } 12930 12931 sg_entries_sent += msg.dt.cur_sg_entries; 12932 if (sg_entries_sent >= msg.dt.kern_sg_entries) 12933 msg.dt.sg_last = 1; 12934 else 12935 msg.dt.sg_last = 0; 12936 12937 /* 12938 * XXX KDM drop and reacquire the lock here? 12939 */ 12940 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12941 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 12942 /* 12943 * XXX do something here. 12944 */ 12945 } 12946 12947 msg.dt.sent_sg_entries = sg_entries_sent; 12948 } 12949 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12950 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) 12951 ctl_failover_io(io, /*have_lock*/ 0); 12952 12953 } else { 12954 12955 /* 12956 * Lookup the fe_datamove() function for this particular 12957 * front end. 12958 */ 12959 fe_datamove = 12960 control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12961 12962 fe_datamove(io); 12963 } 12964} 12965 12966static void 12967ctl_send_datamove_done(union ctl_io *io, int have_lock) 12968{ 12969 union ctl_ha_msg msg; 12970 int isc_status; 12971 12972 memset(&msg, 0, sizeof(msg)); 12973 12974 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12975 msg.hdr.original_sc = io; 12976 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12977 msg.hdr.nexus = io->io_hdr.nexus; 12978 msg.hdr.status = io->io_hdr.status; 12979 msg.scsi.tag_num = io->scsiio.tag_num; 12980 msg.scsi.tag_type = io->scsiio.tag_type; 12981 msg.scsi.scsi_status = io->scsiio.scsi_status; 12982 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12983 sizeof(io->scsiio.sense_data)); 12984 msg.scsi.sense_len = io->scsiio.sense_len; 12985 msg.scsi.sense_residual = io->scsiio.sense_residual; 12986 msg.scsi.fetd_status = io->io_hdr.port_status; 12987 msg.scsi.residual = io->scsiio.residual; 12988 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12989 12990 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12991 ctl_failover_io(io, /*have_lock*/ have_lock); 12992 return; 12993 } 12994 12995 isc_status = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0); 12996 if (isc_status > CTL_HA_STATUS_SUCCESS) { 12997 /* XXX do something if this fails */ 12998 } 12999 13000} 13001 13002/* 13003 * The DMA to the remote side is done, now we need to tell the other side 13004 * we're done so it can continue with its data movement. 13005 */ 13006static void 13007ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 13008{ 13009 union ctl_io *io; 13010 13011 io = rq->context; 13012 13013 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 13014 printf("%s: ISC DMA write failed with error %d", __func__, 13015 rq->ret); 13016 ctl_set_internal_failure(&io->scsiio, 13017 /*sks_valid*/ 1, 13018 /*retry_count*/ rq->ret); 13019 } 13020 13021 ctl_dt_req_free(rq); 13022 13023 /* 13024 * In this case, we had to malloc the memory locally. Free it. 13025 */ 13026 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 13027 int i; 13028 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13029 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13030 } 13031 /* 13032 * The data is in local and remote memory, so now we need to send 13033 * status (good or back) back to the other side. 13034 */ 13035 ctl_send_datamove_done(io, /*have_lock*/ 0); 13036} 13037 13038/* 13039 * We've moved the data from the host/controller into local memory. Now we 13040 * need to push it over to the remote controller's memory. 13041 */ 13042static int 13043ctl_datamove_remote_dm_write_cb(union ctl_io *io) 13044{ 13045 int retval; 13046 13047 retval = 0; 13048 13049 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 13050 ctl_datamove_remote_write_cb); 13051 13052 return (retval); 13053} 13054 13055static void 13056ctl_datamove_remote_write(union ctl_io *io) 13057{ 13058 int retval; 13059 void (*fe_datamove)(union ctl_io *io); 13060 13061 /* 13062 * - Get the data from the host/HBA into local memory. 13063 * - DMA memory from the local controller to the remote controller. 13064 * - Send status back to the remote controller. 13065 */ 13066 13067 retval = ctl_datamove_remote_sgl_setup(io); 13068 if (retval != 0) 13069 return; 13070 13071 /* Switch the pointer over so the FETD knows what to do */ 13072 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 13073 13074 /* 13075 * Use a custom move done callback, since we need to send completion 13076 * back to the other controller, not to the backend on this side. 13077 */ 13078 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 13079 13080 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13081 13082 fe_datamove(io); 13083 13084 return; 13085 13086} 13087 13088static int 13089ctl_datamove_remote_dm_read_cb(union ctl_io *io) 13090{ 13091#if 0 13092 char str[256]; 13093 char path_str[64]; 13094 struct sbuf sb; 13095#endif 13096 13097 /* 13098 * In this case, we had to malloc the memory locally. Free it. 13099 */ 13100 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 13101 int i; 13102 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13103 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13104 } 13105 13106#if 0 13107 scsi_path_string(io, path_str, sizeof(path_str)); 13108 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13109 sbuf_cat(&sb, path_str); 13110 scsi_command_string(&io->scsiio, NULL, &sb); 13111 sbuf_printf(&sb, "\n"); 13112 sbuf_cat(&sb, path_str); 13113 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13114 io->scsiio.tag_num, io->scsiio.tag_type); 13115 sbuf_cat(&sb, path_str); 13116 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 13117 io->io_hdr.flags, io->io_hdr.status); 13118 sbuf_finish(&sb); 13119 printk("%s", sbuf_data(&sb)); 13120#endif 13121 13122 13123 /* 13124 * The read is done, now we need to send status (good or bad) back 13125 * to the other side. 13126 */ 13127 ctl_send_datamove_done(io, /*have_lock*/ 0); 13128 13129 return (0); 13130} 13131 13132static void 13133ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 13134{ 13135 union ctl_io *io; 13136 void (*fe_datamove)(union ctl_io *io); 13137 13138 io = rq->context; 13139 13140 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 13141 printf("%s: ISC DMA read failed with error %d", __func__, 13142 rq->ret); 13143 ctl_set_internal_failure(&io->scsiio, 13144 /*sks_valid*/ 1, 13145 /*retry_count*/ rq->ret); 13146 } 13147 13148 ctl_dt_req_free(rq); 13149 13150 /* Switch the pointer over so the FETD knows what to do */ 13151 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 13152 13153 /* 13154 * Use a custom move done callback, since we need to send completion 13155 * back to the other controller, not to the backend on this side. 13156 */ 13157 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 13158 13159 /* XXX KDM add checks like the ones in ctl_datamove? */ 13160 13161 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13162 13163 fe_datamove(io); 13164} 13165 13166static int 13167ctl_datamove_remote_sgl_setup(union ctl_io *io) 13168{ 13169 struct ctl_sg_entry *local_sglist, *remote_sglist; 13170 struct ctl_sg_entry *local_dma_sglist, *remote_dma_sglist; 13171 struct ctl_softc *softc; 13172 int retval; 13173 int i; 13174 13175 retval = 0; 13176 softc = control_softc; 13177 13178 local_sglist = io->io_hdr.local_sglist; 13179 local_dma_sglist = io->io_hdr.local_dma_sglist; 13180 remote_sglist = io->io_hdr.remote_sglist; 13181 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13182 13183 if (io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) { 13184 for (i = 0; i < io->scsiio.kern_sg_entries; i++) { 13185 local_sglist[i].len = remote_sglist[i].len; 13186 13187 /* 13188 * XXX Detect the situation where the RS-level I/O 13189 * redirector on the other side has already read the 13190 * data off of the AOR RS on this side, and 13191 * transferred it to remote (mirror) memory on the 13192 * other side. Since we already have the data in 13193 * memory here, we just need to use it. 13194 * 13195 * XXX KDM this can probably be removed once we 13196 * get the cache device code in and take the 13197 * current AOR implementation out. 13198 */ 13199#ifdef NEEDTOPORT 13200 if ((remote_sglist[i].addr >= 13201 (void *)vtophys(softc->mirr->addr)) 13202 && (remote_sglist[i].addr < 13203 ((void *)vtophys(softc->mirr->addr) + 13204 CacheMirrorOffset))) { 13205 local_sglist[i].addr = remote_sglist[i].addr - 13206 CacheMirrorOffset; 13207 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13208 CTL_FLAG_DATA_IN) 13209 io->io_hdr.flags |= CTL_FLAG_REDIR_DONE; 13210 } else { 13211 local_sglist[i].addr = remote_sglist[i].addr + 13212 CacheMirrorOffset; 13213 } 13214#endif 13215#if 0 13216 printf("%s: local %p, remote %p, len %d\n", 13217 __func__, local_sglist[i].addr, 13218 remote_sglist[i].addr, local_sglist[i].len); 13219#endif 13220 } 13221 } else { 13222 uint32_t len_to_go; 13223 13224 /* 13225 * In this case, we don't have automatically allocated 13226 * memory for this I/O on this controller. This typically 13227 * happens with internal CTL I/O -- e.g. inquiry, mode 13228 * sense, etc. Anything coming from RAIDCore will have 13229 * a mirror area available. 13230 */ 13231 len_to_go = io->scsiio.kern_data_len; 13232 13233 /* 13234 * Clear the no datasync flag, we have to use malloced 13235 * buffers. 13236 */ 13237 io->io_hdr.flags &= ~CTL_FLAG_NO_DATASYNC; 13238 13239 /* 13240 * The difficult thing here is that the size of the various 13241 * S/G segments may be different than the size from the 13242 * remote controller. That'll make it harder when DMAing 13243 * the data back to the other side. 13244 */ 13245 for (i = 0; (i < sizeof(io->io_hdr.remote_sglist) / 13246 sizeof(io->io_hdr.remote_sglist[0])) && 13247 (len_to_go > 0); i++) { 13248 local_sglist[i].len = MIN(len_to_go, 131072); 13249 CTL_SIZE_8B(local_dma_sglist[i].len, 13250 local_sglist[i].len); 13251 local_sglist[i].addr = 13252 malloc(local_dma_sglist[i].len, M_CTL,M_WAITOK); 13253 13254 local_dma_sglist[i].addr = local_sglist[i].addr; 13255 13256 if (local_sglist[i].addr == NULL) { 13257 int j; 13258 13259 printf("malloc failed for %zd bytes!", 13260 local_dma_sglist[i].len); 13261 for (j = 0; j < i; j++) { 13262 free(local_sglist[j].addr, M_CTL); 13263 } 13264 ctl_set_internal_failure(&io->scsiio, 13265 /*sks_valid*/ 1, 13266 /*retry_count*/ 4857); 13267 retval = 1; 13268 goto bailout_error; 13269 13270 } 13271 /* XXX KDM do we need a sync here? */ 13272 13273 len_to_go -= local_sglist[i].len; 13274 } 13275 /* 13276 * Reset the number of S/G entries accordingly. The 13277 * original number of S/G entries is available in 13278 * rem_sg_entries. 13279 */ 13280 io->scsiio.kern_sg_entries = i; 13281 13282#if 0 13283 printf("%s: kern_sg_entries = %d\n", __func__, 13284 io->scsiio.kern_sg_entries); 13285 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13286 printf("%s: sg[%d] = %p, %d (DMA: %d)\n", __func__, i, 13287 local_sglist[i].addr, local_sglist[i].len, 13288 local_dma_sglist[i].len); 13289#endif 13290 } 13291 13292 13293 return (retval); 13294 13295bailout_error: 13296 13297 ctl_send_datamove_done(io, /*have_lock*/ 0); 13298 13299 return (retval); 13300} 13301 13302static int 13303ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 13304 ctl_ha_dt_cb callback) 13305{ 13306 struct ctl_ha_dt_req *rq; 13307 struct ctl_sg_entry *remote_sglist, *local_sglist; 13308 struct ctl_sg_entry *remote_dma_sglist, *local_dma_sglist; 13309 uint32_t local_used, remote_used, total_used; 13310 int retval; 13311 int i, j; 13312 13313 retval = 0; 13314 13315 rq = ctl_dt_req_alloc(); 13316 13317 /* 13318 * If we failed to allocate the request, and if the DMA didn't fail 13319 * anyway, set busy status. This is just a resource allocation 13320 * failure. 13321 */ 13322 if ((rq == NULL) 13323 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)) 13324 ctl_set_busy(&io->scsiio); 13325 13326 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 13327 13328 if (rq != NULL) 13329 ctl_dt_req_free(rq); 13330 13331 /* 13332 * The data move failed. We need to return status back 13333 * to the other controller. No point in trying to DMA 13334 * data to the remote controller. 13335 */ 13336 13337 ctl_send_datamove_done(io, /*have_lock*/ 0); 13338 13339 retval = 1; 13340 13341 goto bailout; 13342 } 13343 13344 local_sglist = io->io_hdr.local_sglist; 13345 local_dma_sglist = io->io_hdr.local_dma_sglist; 13346 remote_sglist = io->io_hdr.remote_sglist; 13347 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13348 local_used = 0; 13349 remote_used = 0; 13350 total_used = 0; 13351 13352 if (io->io_hdr.flags & CTL_FLAG_REDIR_DONE) { 13353 rq->ret = CTL_HA_STATUS_SUCCESS; 13354 rq->context = io; 13355 callback(rq); 13356 goto bailout; 13357 } 13358 13359 /* 13360 * Pull/push the data over the wire from/to the other controller. 13361 * This takes into account the possibility that the local and 13362 * remote sglists may not be identical in terms of the size of 13363 * the elements and the number of elements. 13364 * 13365 * One fundamental assumption here is that the length allocated for 13366 * both the local and remote sglists is identical. Otherwise, we've 13367 * essentially got a coding error of some sort. 13368 */ 13369 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 13370 int isc_ret; 13371 uint32_t cur_len, dma_length; 13372 uint8_t *tmp_ptr; 13373 13374 rq->id = CTL_HA_DATA_CTL; 13375 rq->command = command; 13376 rq->context = io; 13377 13378 /* 13379 * Both pointers should be aligned. But it is possible 13380 * that the allocation length is not. They should both 13381 * also have enough slack left over at the end, though, 13382 * to round up to the next 8 byte boundary. 13383 */ 13384 cur_len = MIN(local_sglist[i].len - local_used, 13385 remote_sglist[j].len - remote_used); 13386 13387 /* 13388 * In this case, we have a size issue and need to decrease 13389 * the size, except in the case where we actually have less 13390 * than 8 bytes left. In that case, we need to increase 13391 * the DMA length to get the last bit. 13392 */ 13393 if ((cur_len & 0x7) != 0) { 13394 if (cur_len > 0x7) { 13395 cur_len = cur_len - (cur_len & 0x7); 13396 dma_length = cur_len; 13397 } else { 13398 CTL_SIZE_8B(dma_length, cur_len); 13399 } 13400 13401 } else 13402 dma_length = cur_len; 13403 13404 /* 13405 * If we had to allocate memory for this I/O, instead of using 13406 * the non-cached mirror memory, we'll need to flush the cache 13407 * before trying to DMA to the other controller. 13408 * 13409 * We could end up doing this multiple times for the same 13410 * segment if we have a larger local segment than remote 13411 * segment. That shouldn't be an issue. 13412 */ 13413 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 13414 /* 13415 * XXX KDM use bus_dmamap_sync() here. 13416 */ 13417 } 13418 13419 rq->size = dma_length; 13420 13421 tmp_ptr = (uint8_t *)local_sglist[i].addr; 13422 tmp_ptr += local_used; 13423 13424 /* Use physical addresses when talking to ISC hardware */ 13425 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 13426 /* XXX KDM use busdma */ 13427#if 0 13428 rq->local = vtophys(tmp_ptr); 13429#endif 13430 } else 13431 rq->local = tmp_ptr; 13432 13433 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 13434 tmp_ptr += remote_used; 13435 rq->remote = tmp_ptr; 13436 13437 rq->callback = NULL; 13438 13439 local_used += cur_len; 13440 if (local_used >= local_sglist[i].len) { 13441 i++; 13442 local_used = 0; 13443 } 13444 13445 remote_used += cur_len; 13446 if (remote_used >= remote_sglist[j].len) { 13447 j++; 13448 remote_used = 0; 13449 } 13450 total_used += cur_len; 13451 13452 if (total_used >= io->scsiio.kern_data_len) 13453 rq->callback = callback; 13454 13455 if ((rq->size & 0x7) != 0) { 13456 printf("%s: warning: size %d is not on 8b boundary\n", 13457 __func__, rq->size); 13458 } 13459 if (((uintptr_t)rq->local & 0x7) != 0) { 13460 printf("%s: warning: local %p not on 8b boundary\n", 13461 __func__, rq->local); 13462 } 13463 if (((uintptr_t)rq->remote & 0x7) != 0) { 13464 printf("%s: warning: remote %p not on 8b boundary\n", 13465 __func__, rq->local); 13466 } 13467#if 0 13468 printf("%s: %s: local %#x remote %#x size %d\n", __func__, 13469 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13470 rq->local, rq->remote, rq->size); 13471#endif 13472 13473 isc_ret = ctl_dt_single(rq); 13474 if (isc_ret == CTL_HA_STATUS_WAIT) 13475 continue; 13476 13477 if (isc_ret == CTL_HA_STATUS_DISCONNECT) { 13478 rq->ret = CTL_HA_STATUS_SUCCESS; 13479 } else { 13480 rq->ret = isc_ret; 13481 } 13482 callback(rq); 13483 goto bailout; 13484 } 13485 13486bailout: 13487 return (retval); 13488 13489} 13490 13491static void 13492ctl_datamove_remote_read(union ctl_io *io) 13493{ 13494 int retval; 13495 int i; 13496 13497 /* 13498 * This will send an error to the other controller in the case of a 13499 * failure. 13500 */ 13501 retval = ctl_datamove_remote_sgl_setup(io); 13502 if (retval != 0) 13503 return; 13504 13505 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13506 ctl_datamove_remote_read_cb); 13507 if ((retval != 0) 13508 && ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0)) { 13509 /* 13510 * Make sure we free memory if there was an error.. The 13511 * ctl_datamove_remote_xfer() function will send the 13512 * datamove done message, or call the callback with an 13513 * error if there is a problem. 13514 */ 13515 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13516 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13517 } 13518 13519 return; 13520} 13521 13522/* 13523 * Process a datamove request from the other controller. This is used for 13524 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13525 * first. Once that is complete, the data gets DMAed into the remote 13526 * controller's memory. For reads, we DMA from the remote controller's 13527 * memory into our memory first, and then move it out to the FETD. 13528 */ 13529static void 13530ctl_datamove_remote(union ctl_io *io) 13531{ 13532 struct ctl_softc *softc; 13533 13534 softc = control_softc; 13535 13536 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 13537 13538 /* 13539 * Note that we look for an aborted I/O here, but don't do some of 13540 * the other checks that ctl_datamove() normally does. 13541 * We don't need to run the datamove delay code, since that should 13542 * have been done if need be on the other controller. 13543 */ 13544 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13545 printf("%s: tag 0x%04x on (%d:%d:%d:%d) aborted\n", __func__, 13546 io->scsiio.tag_num, io->io_hdr.nexus.initid.id, 13547 io->io_hdr.nexus.targ_port, 13548 io->io_hdr.nexus.targ_target.id, 13549 io->io_hdr.nexus.targ_lun); 13550 io->io_hdr.port_status = 31338; 13551 ctl_send_datamove_done(io, /*have_lock*/ 0); 13552 return; 13553 } 13554 13555 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) { 13556 ctl_datamove_remote_write(io); 13557 } else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN){ 13558 ctl_datamove_remote_read(io); 13559 } else { 13560 union ctl_ha_msg msg; 13561 struct scsi_sense_data *sense; 13562 uint8_t sks[3]; 13563 int retry_count; 13564 13565 memset(&msg, 0, sizeof(msg)); 13566 13567 msg.hdr.msg_type = CTL_MSG_BAD_JUJU; 13568 msg.hdr.status = CTL_SCSI_ERROR; 13569 msg.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 13570 13571 retry_count = 4243; 13572 13573 sense = &msg.scsi.sense_data; 13574 sks[0] = SSD_SCS_VALID; 13575 sks[1] = (retry_count >> 8) & 0xff; 13576 sks[2] = retry_count & 0xff; 13577 13578 /* "Internal target failure" */ 13579 scsi_set_sense_data(sense, 13580 /*sense_format*/ SSD_TYPE_NONE, 13581 /*current_error*/ 1, 13582 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 13583 /*asc*/ 0x44, 13584 /*ascq*/ 0x00, 13585 /*type*/ SSD_ELEM_SKS, 13586 /*size*/ sizeof(sks), 13587 /*data*/ sks, 13588 SSD_ELEM_NONE); 13589 13590 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13591 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13592 ctl_failover_io(io, /*have_lock*/ 1); 13593 return; 13594 } 13595 13596 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0) > 13597 CTL_HA_STATUS_SUCCESS) { 13598 /* XXX KDM what to do if this fails? */ 13599 } 13600 return; 13601 } 13602 13603} 13604 13605static int 13606ctl_process_done(union ctl_io *io) 13607{ 13608 struct ctl_lun *lun; 13609 struct ctl_softc *softc = control_softc; 13610 void (*fe_done)(union ctl_io *io); 13611 uint32_t targ_port = ctl_port_idx(io->io_hdr.nexus.targ_port); 13612 13613 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13614 13615 fe_done = softc->ctl_ports[targ_port]->fe_done; 13616 13617#ifdef CTL_TIME_IO 13618 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13619 char str[256]; 13620 char path_str[64]; 13621 struct sbuf sb; 13622 13623 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13624 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13625 13626 sbuf_cat(&sb, path_str); 13627 switch (io->io_hdr.io_type) { 13628 case CTL_IO_SCSI: 13629 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13630 sbuf_printf(&sb, "\n"); 13631 sbuf_cat(&sb, path_str); 13632 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13633 io->scsiio.tag_num, io->scsiio.tag_type); 13634 break; 13635 case CTL_IO_TASK: 13636 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13637 "Tag Type: %d\n", io->taskio.task_action, 13638 io->taskio.tag_num, io->taskio.tag_type); 13639 break; 13640 default: 13641 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13642 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13643 break; 13644 } 13645 sbuf_cat(&sb, path_str); 13646 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13647 (intmax_t)time_uptime - io->io_hdr.start_time); 13648 sbuf_finish(&sb); 13649 printf("%s", sbuf_data(&sb)); 13650 } 13651#endif /* CTL_TIME_IO */ 13652 13653 switch (io->io_hdr.io_type) { 13654 case CTL_IO_SCSI: 13655 break; 13656 case CTL_IO_TASK: 13657 if (bootverbose || (ctl_debug & CTL_DEBUG_INFO)) 13658 ctl_io_error_print(io, NULL); 13659 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 13660 ctl_free_io(io); 13661 else 13662 fe_done(io); 13663 return (CTL_RETVAL_COMPLETE); 13664 default: 13665 panic("ctl_process_done: invalid io type %d\n", 13666 io->io_hdr.io_type); 13667 break; /* NOTREACHED */ 13668 } 13669 13670 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13671 if (lun == NULL) { 13672 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13673 io->io_hdr.nexus.targ_mapped_lun)); 13674 goto bailout; 13675 } 13676 13677 mtx_lock(&lun->lun_lock); 13678 13679 /* 13680 * Check to see if we have any errors to inject here. We only 13681 * inject errors for commands that don't already have errors set. 13682 */ 13683 if ((STAILQ_FIRST(&lun->error_list) != NULL) && 13684 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) && 13685 ((io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0)) 13686 ctl_inject_error(lun, io); 13687 13688 /* 13689 * XXX KDM how do we treat commands that aren't completed 13690 * successfully? 13691 * 13692 * XXX KDM should we also track I/O latency? 13693 */ 13694 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13695 io->io_hdr.io_type == CTL_IO_SCSI) { 13696#ifdef CTL_TIME_IO 13697 struct bintime cur_bt; 13698#endif 13699 int type; 13700 13701 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13702 CTL_FLAG_DATA_IN) 13703 type = CTL_STATS_READ; 13704 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13705 CTL_FLAG_DATA_OUT) 13706 type = CTL_STATS_WRITE; 13707 else 13708 type = CTL_STATS_NO_IO; 13709 13710 lun->stats.ports[targ_port].bytes[type] += 13711 io->scsiio.kern_total_len; 13712 lun->stats.ports[targ_port].operations[type]++; 13713#ifdef CTL_TIME_IO 13714 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13715 &io->io_hdr.dma_bt); 13716 lun->stats.ports[targ_port].num_dmas[type] += 13717 io->io_hdr.num_dmas; 13718 getbintime(&cur_bt); 13719 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13720 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13721#endif 13722 } 13723 13724 /* 13725 * Remove this from the OOA queue. 13726 */ 13727 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13728#ifdef CTL_TIME_IO 13729 if (TAILQ_EMPTY(&lun->ooa_queue)) 13730 lun->last_busy = getsbinuptime(); 13731#endif 13732 13733 /* 13734 * Run through the blocked queue on this LUN and see if anything 13735 * has become unblocked, now that this transaction is done. 13736 */ 13737 ctl_check_blocked(lun); 13738 13739 /* 13740 * If the LUN has been invalidated, free it if there is nothing 13741 * left on its OOA queue. 13742 */ 13743 if ((lun->flags & CTL_LUN_INVALID) 13744 && TAILQ_EMPTY(&lun->ooa_queue)) { 13745 mtx_unlock(&lun->lun_lock); 13746 mtx_lock(&softc->ctl_lock); 13747 ctl_free_lun(lun); 13748 mtx_unlock(&softc->ctl_lock); 13749 } else 13750 mtx_unlock(&lun->lun_lock); 13751 13752bailout: 13753 13754 /* 13755 * If this command has been aborted, make sure we set the status 13756 * properly. The FETD is responsible for freeing the I/O and doing 13757 * whatever it needs to do to clean up its state. 13758 */ 13759 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13760 ctl_set_task_aborted(&io->scsiio); 13761 13762 /* 13763 * If enabled, print command error status. 13764 * We don't print UAs unless debugging was enabled explicitly. 13765 */ 13766 do { 13767 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) 13768 break; 13769 if (!bootverbose && (ctl_debug & CTL_DEBUG_INFO) == 0) 13770 break; 13771 if ((ctl_debug & CTL_DEBUG_INFO) == 0 && 13772 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SCSI_ERROR) && 13773 (io->scsiio.scsi_status == SCSI_STATUS_CHECK_COND)) { 13774 int error_code, sense_key, asc, ascq; 13775 13776 scsi_extract_sense_len(&io->scsiio.sense_data, 13777 io->scsiio.sense_len, &error_code, &sense_key, 13778 &asc, &ascq, /*show_errors*/ 0); 13779 if (sense_key == SSD_KEY_UNIT_ATTENTION) 13780 break; 13781 } 13782 13783 ctl_io_error_print(io, NULL); 13784 } while (0); 13785 13786 /* 13787 * Tell the FETD or the other shelf controller we're done with this 13788 * command. Note that only SCSI commands get to this point. Task 13789 * management commands are completed above. 13790 * 13791 * We only send status to the other controller if we're in XFER 13792 * mode. In SER_ONLY mode, the I/O is done on the controller that 13793 * received the I/O (from CTL's perspective), and so the status is 13794 * generated there. 13795 * 13796 * XXX KDM if we hold the lock here, we could cause a deadlock 13797 * if the frontend comes back in in this context to queue 13798 * something. 13799 */ 13800 if ((softc->ha_mode == CTL_HA_MODE_XFER) 13801 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 13802 union ctl_ha_msg msg; 13803 13804 memset(&msg, 0, sizeof(msg)); 13805 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13806 msg.hdr.original_sc = io->io_hdr.original_sc; 13807 msg.hdr.nexus = io->io_hdr.nexus; 13808 msg.hdr.status = io->io_hdr.status; 13809 msg.scsi.scsi_status = io->scsiio.scsi_status; 13810 msg.scsi.tag_num = io->scsiio.tag_num; 13811 msg.scsi.tag_type = io->scsiio.tag_type; 13812 msg.scsi.sense_len = io->scsiio.sense_len; 13813 msg.scsi.sense_residual = io->scsiio.sense_residual; 13814 msg.scsi.residual = io->scsiio.residual; 13815 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13816 sizeof(io->scsiio.sense_data)); 13817 /* 13818 * We copy this whether or not this is an I/O-related 13819 * command. Otherwise, we'd have to go and check to see 13820 * whether it's a read/write command, and it really isn't 13821 * worth it. 13822 */ 13823 memcpy(&msg.scsi.lbalen, 13824 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 13825 sizeof(msg.scsi.lbalen)); 13826 13827 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13828 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13829 /* XXX do something here */ 13830 } 13831 13832 ctl_free_io(io); 13833 } else 13834 fe_done(io); 13835 13836 return (CTL_RETVAL_COMPLETE); 13837} 13838 13839#ifdef CTL_WITH_CA 13840/* 13841 * Front end should call this if it doesn't do autosense. When the request 13842 * sense comes back in from the initiator, we'll dequeue this and send it. 13843 */ 13844int 13845ctl_queue_sense(union ctl_io *io) 13846{ 13847 struct ctl_lun *lun; 13848 struct ctl_port *port; 13849 struct ctl_softc *softc; 13850 uint32_t initidx, targ_lun; 13851 13852 softc = control_softc; 13853 13854 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13855 13856 /* 13857 * LUN lookup will likely move to the ctl_work_thread() once we 13858 * have our new queueing infrastructure (that doesn't put things on 13859 * a per-LUN queue initially). That is so that we can handle 13860 * things like an INQUIRY to a LUN that we don't have enabled. We 13861 * can't deal with that right now. 13862 */ 13863 mtx_lock(&softc->ctl_lock); 13864 13865 /* 13866 * If we don't have a LUN for this, just toss the sense 13867 * information. 13868 */ 13869 port = ctl_io_port(&ctsio->io_hdr); 13870 targ_lun = ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13871 if ((targ_lun < CTL_MAX_LUNS) 13872 && (softc->ctl_luns[targ_lun] != NULL)) 13873 lun = softc->ctl_luns[targ_lun]; 13874 else 13875 goto bailout; 13876 13877 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13878 13879 mtx_lock(&lun->lun_lock); 13880 /* 13881 * Already have CA set for this LUN...toss the sense information. 13882 */ 13883 if (ctl_is_set(lun->have_ca, initidx)) { 13884 mtx_unlock(&lun->lun_lock); 13885 goto bailout; 13886 } 13887 13888 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13889 MIN(sizeof(lun->pending_sense[initidx]), 13890 sizeof(io->scsiio.sense_data))); 13891 ctl_set_mask(lun->have_ca, initidx); 13892 mtx_unlock(&lun->lun_lock); 13893 13894bailout: 13895 mtx_unlock(&softc->ctl_lock); 13896 13897 ctl_free_io(io); 13898 13899 return (CTL_RETVAL_COMPLETE); 13900} 13901#endif 13902 13903/* 13904 * Primary command inlet from frontend ports. All SCSI and task I/O 13905 * requests must go through this function. 13906 */ 13907int 13908ctl_queue(union ctl_io *io) 13909{ 13910 struct ctl_port *port; 13911 13912 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13913 13914#ifdef CTL_TIME_IO 13915 io->io_hdr.start_time = time_uptime; 13916 getbintime(&io->io_hdr.start_bt); 13917#endif /* CTL_TIME_IO */ 13918 13919 /* Map FE-specific LUN ID into global one. */ 13920 port = ctl_io_port(&io->io_hdr); 13921 io->io_hdr.nexus.targ_mapped_lun = 13922 ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13923 13924 switch (io->io_hdr.io_type) { 13925 case CTL_IO_SCSI: 13926 case CTL_IO_TASK: 13927 if (ctl_debug & CTL_DEBUG_CDB) 13928 ctl_io_print(io); 13929 ctl_enqueue_incoming(io); 13930 break; 13931 default: 13932 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13933 return (EINVAL); 13934 } 13935 13936 return (CTL_RETVAL_COMPLETE); 13937} 13938 13939#ifdef CTL_IO_DELAY 13940static void 13941ctl_done_timer_wakeup(void *arg) 13942{ 13943 union ctl_io *io; 13944 13945 io = (union ctl_io *)arg; 13946 ctl_done(io); 13947} 13948#endif /* CTL_IO_DELAY */ 13949 13950void 13951ctl_done(union ctl_io *io) 13952{ 13953 13954 /* 13955 * Enable this to catch duplicate completion issues. 13956 */ 13957#if 0 13958 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13959 printf("%s: type %d msg %d cdb %x iptl: " 13960 "%d:%d:%d:%d tag 0x%04x " 13961 "flag %#x status %x\n", 13962 __func__, 13963 io->io_hdr.io_type, 13964 io->io_hdr.msg_type, 13965 io->scsiio.cdb[0], 13966 io->io_hdr.nexus.initid.id, 13967 io->io_hdr.nexus.targ_port, 13968 io->io_hdr.nexus.targ_target.id, 13969 io->io_hdr.nexus.targ_lun, 13970 (io->io_hdr.io_type == 13971 CTL_IO_TASK) ? 13972 io->taskio.tag_num : 13973 io->scsiio.tag_num, 13974 io->io_hdr.flags, 13975 io->io_hdr.status); 13976 } else 13977 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13978#endif 13979 13980 /* 13981 * This is an internal copy of an I/O, and should not go through 13982 * the normal done processing logic. 13983 */ 13984 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13985 return; 13986 13987 /* 13988 * We need to send a msg to the serializing shelf to finish the IO 13989 * as well. We don't send a finish message to the other shelf if 13990 * this is a task management command. Task management commands 13991 * aren't serialized in the OOA queue, but rather just executed on 13992 * both shelf controllers for commands that originated on that 13993 * controller. 13994 */ 13995 if ((io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC) 13996 && (io->io_hdr.io_type != CTL_IO_TASK)) { 13997 union ctl_ha_msg msg_io; 13998 13999 msg_io.hdr.msg_type = CTL_MSG_FINISH_IO; 14000 msg_io.hdr.serializing_sc = io->io_hdr.serializing_sc; 14001 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_io, 14002 sizeof(msg_io), 0 ) != CTL_HA_STATUS_SUCCESS) { 14003 } 14004 /* continue on to finish IO */ 14005 } 14006#ifdef CTL_IO_DELAY 14007 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 14008 struct ctl_lun *lun; 14009 14010 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14011 14012 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 14013 } else { 14014 struct ctl_lun *lun; 14015 14016 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14017 14018 if ((lun != NULL) 14019 && (lun->delay_info.done_delay > 0)) { 14020 struct callout *callout; 14021 14022 callout = (struct callout *)&io->io_hdr.timer_bytes; 14023 callout_init(callout, /*mpsafe*/ 1); 14024 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 14025 callout_reset(callout, 14026 lun->delay_info.done_delay * hz, 14027 ctl_done_timer_wakeup, io); 14028 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 14029 lun->delay_info.done_delay = 0; 14030 return; 14031 } 14032 } 14033#endif /* CTL_IO_DELAY */ 14034 14035 ctl_enqueue_done(io); 14036} 14037 14038int 14039ctl_isc(struct ctl_scsiio *ctsio) 14040{ 14041 struct ctl_lun *lun; 14042 int retval; 14043 14044 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14045 14046 CTL_DEBUG_PRINT(("ctl_isc: command: %02x\n", ctsio->cdb[0])); 14047 14048 CTL_DEBUG_PRINT(("ctl_isc: calling data_submit()\n")); 14049 14050 retval = lun->backend->data_submit((union ctl_io *)ctsio); 14051 14052 return (retval); 14053} 14054 14055 14056static void 14057ctl_work_thread(void *arg) 14058{ 14059 struct ctl_thread *thr = (struct ctl_thread *)arg; 14060 struct ctl_softc *softc = thr->ctl_softc; 14061 union ctl_io *io; 14062 int retval; 14063 14064 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 14065 14066 for (;;) { 14067 retval = 0; 14068 14069 /* 14070 * We handle the queues in this order: 14071 * - ISC 14072 * - done queue (to free up resources, unblock other commands) 14073 * - RtR queue 14074 * - incoming queue 14075 * 14076 * If those queues are empty, we break out of the loop and 14077 * go to sleep. 14078 */ 14079 mtx_lock(&thr->queue_lock); 14080 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 14081 if (io != NULL) { 14082 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 14083 mtx_unlock(&thr->queue_lock); 14084 ctl_handle_isc(io); 14085 continue; 14086 } 14087 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 14088 if (io != NULL) { 14089 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 14090 /* clear any blocked commands, call fe_done */ 14091 mtx_unlock(&thr->queue_lock); 14092 retval = ctl_process_done(io); 14093 continue; 14094 } 14095 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 14096 if (io != NULL) { 14097 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 14098 mtx_unlock(&thr->queue_lock); 14099 if (io->io_hdr.io_type == CTL_IO_TASK) 14100 ctl_run_task(io); 14101 else 14102 ctl_scsiio_precheck(softc, &io->scsiio); 14103 continue; 14104 } 14105 if (!ctl_pause_rtr) { 14106 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 14107 if (io != NULL) { 14108 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 14109 mtx_unlock(&thr->queue_lock); 14110 retval = ctl_scsiio(&io->scsiio); 14111 if (retval != CTL_RETVAL_COMPLETE) 14112 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 14113 continue; 14114 } 14115 } 14116 14117 /* Sleep until we have something to do. */ 14118 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 14119 } 14120} 14121 14122static void 14123ctl_lun_thread(void *arg) 14124{ 14125 struct ctl_softc *softc = (struct ctl_softc *)arg; 14126 struct ctl_be_lun *be_lun; 14127 int retval; 14128 14129 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 14130 14131 for (;;) { 14132 retval = 0; 14133 mtx_lock(&softc->ctl_lock); 14134 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 14135 if (be_lun != NULL) { 14136 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 14137 mtx_unlock(&softc->ctl_lock); 14138 ctl_create_lun(be_lun); 14139 continue; 14140 } 14141 14142 /* Sleep until we have something to do. */ 14143 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 14144 PDROP | PRIBIO, "-", 0); 14145 } 14146} 14147 14148static void 14149ctl_thresh_thread(void *arg) 14150{ 14151 struct ctl_softc *softc = (struct ctl_softc *)arg; 14152 struct ctl_lun *lun; 14153 struct ctl_be_lun *be_lun; 14154 struct scsi_da_rw_recovery_page *rwpage; 14155 struct ctl_logical_block_provisioning_page *page; 14156 const char *attr; 14157 uint64_t thres, val; 14158 int i, e; 14159 14160 CTL_DEBUG_PRINT(("ctl_thresh_thread starting\n")); 14161 14162 for (;;) { 14163 mtx_lock(&softc->ctl_lock); 14164 STAILQ_FOREACH(lun, &softc->lun_list, links) { 14165 be_lun = lun->be_lun; 14166 if ((lun->flags & CTL_LUN_DISABLED) || 14167 (lun->flags & CTL_LUN_OFFLINE) || 14168 lun->backend->lun_attr == NULL) 14169 continue; 14170 rwpage = &lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT]; 14171 if ((rwpage->byte8 & SMS_RWER_LBPERE) == 0) 14172 continue; 14173 e = 0; 14174 page = &lun->mode_pages.lbp_page[CTL_PAGE_CURRENT]; 14175 for (i = 0; i < CTL_NUM_LBP_THRESH; i++) { 14176 if ((page->descr[i].flags & SLBPPD_ENABLED) == 0) 14177 continue; 14178 thres = scsi_4btoul(page->descr[i].count); 14179 thres <<= CTL_LBP_EXPONENT; 14180 switch (page->descr[i].resource) { 14181 case 0x01: 14182 attr = "blocksavail"; 14183 break; 14184 case 0x02: 14185 attr = "blocksused"; 14186 break; 14187 case 0xf1: 14188 attr = "poolblocksavail"; 14189 break; 14190 case 0xf2: 14191 attr = "poolblocksused"; 14192 break; 14193 default: 14194 continue; 14195 } 14196 mtx_unlock(&softc->ctl_lock); // XXX 14197 val = lun->backend->lun_attr( 14198 lun->be_lun->be_lun, attr); 14199 mtx_lock(&softc->ctl_lock); 14200 if (val == UINT64_MAX) 14201 continue; 14202 if ((page->descr[i].flags & SLBPPD_ARMING_MASK) 14203 == SLBPPD_ARMING_INC) 14204 e |= (val >= thres); 14205 else 14206 e |= (val <= thres); 14207 } 14208 mtx_lock(&lun->lun_lock); 14209 if (e) { 14210 if (lun->lasttpt == 0 || 14211 time_uptime - lun->lasttpt >= CTL_LBP_UA_PERIOD) { 14212 lun->lasttpt = time_uptime; 14213 ctl_est_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 14214 } 14215 } else { 14216 lun->lasttpt = 0; 14217 ctl_clr_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 14218 } 14219 mtx_unlock(&lun->lun_lock); 14220 } 14221 mtx_unlock(&softc->ctl_lock); 14222 pause("-", CTL_LBP_PERIOD * hz); 14223 } 14224} 14225 14226static void 14227ctl_enqueue_incoming(union ctl_io *io) 14228{ 14229 struct ctl_softc *softc = control_softc; 14230 struct ctl_thread *thr; 14231 u_int idx; 14232 14233 idx = (io->io_hdr.nexus.targ_port * 127 + 14234 io->io_hdr.nexus.initid.id) % worker_threads; 14235 thr = &softc->threads[idx]; 14236 mtx_lock(&thr->queue_lock); 14237 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 14238 mtx_unlock(&thr->queue_lock); 14239 wakeup(thr); 14240} 14241 14242static void 14243ctl_enqueue_rtr(union ctl_io *io) 14244{ 14245 struct ctl_softc *softc = control_softc; 14246 struct ctl_thread *thr; 14247 14248 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14249 mtx_lock(&thr->queue_lock); 14250 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 14251 mtx_unlock(&thr->queue_lock); 14252 wakeup(thr); 14253} 14254 14255static void 14256ctl_enqueue_done(union ctl_io *io) 14257{ 14258 struct ctl_softc *softc = control_softc; 14259 struct ctl_thread *thr; 14260 14261 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14262 mtx_lock(&thr->queue_lock); 14263 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 14264 mtx_unlock(&thr->queue_lock); 14265 wakeup(thr); 14266} 14267 14268static void 14269ctl_enqueue_isc(union ctl_io *io) 14270{ 14271 struct ctl_softc *softc = control_softc; 14272 struct ctl_thread *thr; 14273 14274 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14275 mtx_lock(&thr->queue_lock); 14276 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 14277 mtx_unlock(&thr->queue_lock); 14278 wakeup(thr); 14279} 14280 14281/* Initialization and failover */ 14282 14283void 14284ctl_init_isc_msg(void) 14285{ 14286 printf("CTL: Still calling this thing\n"); 14287} 14288 14289/* 14290 * Init component 14291 * Initializes component into configuration defined by bootMode 14292 * (see hasc-sv.c) 14293 * returns hasc_Status: 14294 * OK 14295 * ERROR - fatal error 14296 */ 14297static ctl_ha_comp_status 14298ctl_isc_init(struct ctl_ha_component *c) 14299{ 14300 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14301 14302 c->status = ret; 14303 return ret; 14304} 14305 14306/* Start component 14307 * Starts component in state requested. If component starts successfully, 14308 * it must set its own state to the requestrd state 14309 * When requested state is HASC_STATE_HA, the component may refine it 14310 * by adding _SLAVE or _MASTER flags. 14311 * Currently allowed state transitions are: 14312 * UNKNOWN->HA - initial startup 14313 * UNKNOWN->SINGLE - initial startup when no parter detected 14314 * HA->SINGLE - failover 14315 * returns ctl_ha_comp_status: 14316 * OK - component successfully started in requested state 14317 * FAILED - could not start the requested state, failover may 14318 * be possible 14319 * ERROR - fatal error detected, no future startup possible 14320 */ 14321static ctl_ha_comp_status 14322ctl_isc_start(struct ctl_ha_component *c, ctl_ha_state state) 14323{ 14324 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14325 14326 printf("%s: go\n", __func__); 14327 14328 // UNKNOWN->HA or UNKNOWN->SINGLE (bootstrap) 14329 if (c->state == CTL_HA_STATE_UNKNOWN ) { 14330 control_softc->is_single = 0; 14331 if (ctl_ha_msg_create(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 14332 != CTL_HA_STATUS_SUCCESS) { 14333 printf("ctl_isc_start: ctl_ha_msg_create failed.\n"); 14334 ret = CTL_HA_COMP_STATUS_ERROR; 14335 } 14336 } else if (CTL_HA_STATE_IS_HA(c->state) 14337 && CTL_HA_STATE_IS_SINGLE(state)){ 14338 // HA->SINGLE transition 14339 ctl_failover(); 14340 control_softc->is_single = 1; 14341 } else { 14342 printf("ctl_isc_start:Invalid state transition %X->%X\n", 14343 c->state, state); 14344 ret = CTL_HA_COMP_STATUS_ERROR; 14345 } 14346 if (CTL_HA_STATE_IS_SINGLE(state)) 14347 control_softc->is_single = 1; 14348 14349 c->state = state; 14350 c->status = ret; 14351 return ret; 14352} 14353 14354/* 14355 * Quiesce component 14356 * The component must clear any error conditions (set status to OK) and 14357 * prepare itself to another Start call 14358 * returns ctl_ha_comp_status: 14359 * OK 14360 * ERROR 14361 */ 14362static ctl_ha_comp_status 14363ctl_isc_quiesce(struct ctl_ha_component *c) 14364{ 14365 int ret = CTL_HA_COMP_STATUS_OK; 14366 14367 ctl_pause_rtr = 1; 14368 c->status = ret; 14369 return ret; 14370} 14371 14372struct ctl_ha_component ctl_ha_component_ctlisc = 14373{ 14374 .name = "CTL ISC", 14375 .state = CTL_HA_STATE_UNKNOWN, 14376 .init = ctl_isc_init, 14377 .start = ctl_isc_start, 14378 .quiesce = ctl_isc_quiesce 14379}; 14380 14381/* 14382 * vim: ts=8 14383 */ 14384