ctl.c revision 275447
1/*- 2 * Copyright (c) 2003-2009 Silicon Graphics International Corp. 3 * Copyright (c) 2012 The FreeBSD Foundation 4 * All rights reserved. 5 * 6 * Portions of this software were developed by Edward Tomasz Napierala 7 * under sponsorship from the FreeBSD Foundation. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions, and the following disclaimer, 14 * without modification. 15 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 16 * substantially similar to the "NO WARRANTY" disclaimer below 17 * ("Disclaimer") and any redistribution must be conditioned upon 18 * including a substantially similar Disclaimer requirement for further 19 * binary redistribution. 20 * 21 * NO WARRANTY 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 23 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 24 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 25 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 26 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 30 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 31 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32 * POSSIBILITY OF SUCH DAMAGES. 33 * 34 * $Id: //depot/users/kenm/FreeBSD-test2/sys/cam/ctl/ctl.c#8 $ 35 */ 36/* 37 * CAM Target Layer, a SCSI device emulation subsystem. 38 * 39 * Author: Ken Merry <ken@FreeBSD.org> 40 */ 41 42#define _CTL_C 43 44#include <sys/cdefs.h> 45__FBSDID("$FreeBSD: head/sys/cam/ctl/ctl.c 275447 2014-12-03 09:05:53Z mav $"); 46 47#include <sys/param.h> 48#include <sys/systm.h> 49#include <sys/ctype.h> 50#include <sys/kernel.h> 51#include <sys/types.h> 52#include <sys/kthread.h> 53#include <sys/bio.h> 54#include <sys/fcntl.h> 55#include <sys/lock.h> 56#include <sys/module.h> 57#include <sys/mutex.h> 58#include <sys/condvar.h> 59#include <sys/malloc.h> 60#include <sys/conf.h> 61#include <sys/ioccom.h> 62#include <sys/queue.h> 63#include <sys/sbuf.h> 64#include <sys/smp.h> 65#include <sys/endian.h> 66#include <sys/sysctl.h> 67#include <vm/uma.h> 68 69#include <cam/cam.h> 70#include <cam/scsi/scsi_all.h> 71#include <cam/scsi/scsi_da.h> 72#include <cam/ctl/ctl_io.h> 73#include <cam/ctl/ctl.h> 74#include <cam/ctl/ctl_frontend.h> 75#include <cam/ctl/ctl_frontend_internal.h> 76#include <cam/ctl/ctl_util.h> 77#include <cam/ctl/ctl_backend.h> 78#include <cam/ctl/ctl_ioctl.h> 79#include <cam/ctl/ctl_ha.h> 80#include <cam/ctl/ctl_private.h> 81#include <cam/ctl/ctl_debug.h> 82#include <cam/ctl/ctl_scsi_all.h> 83#include <cam/ctl/ctl_error.h> 84 85struct ctl_softc *control_softc = NULL; 86 87/* 88 * Size and alignment macros needed for Copan-specific HA hardware. These 89 * can go away when the HA code is re-written, and uses busdma for any 90 * hardware. 91 */ 92#define CTL_ALIGN_8B(target, source, type) \ 93 if (((uint32_t)source & 0x7) != 0) \ 94 target = (type)(source + (0x8 - ((uint32_t)source & 0x7)));\ 95 else \ 96 target = (type)source; 97 98#define CTL_SIZE_8B(target, size) \ 99 if ((size & 0x7) != 0) \ 100 target = size + (0x8 - (size & 0x7)); \ 101 else \ 102 target = size; 103 104#define CTL_ALIGN_8B_MARGIN 16 105 106/* 107 * Template mode pages. 108 */ 109 110/* 111 * Note that these are default values only. The actual values will be 112 * filled in when the user does a mode sense. 113 */ 114static struct copan_debugconf_subpage debugconf_page_default = { 115 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 116 DBGCNF_SUBPAGE_CODE, /* subpage */ 117 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 118 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 119 DBGCNF_VERSION, /* page_version */ 120 {CTL_TIME_IO_DEFAULT_SECS>>8, 121 CTL_TIME_IO_DEFAULT_SECS>>0}, /* ctl_time_io_secs */ 122}; 123 124static struct copan_debugconf_subpage debugconf_page_changeable = { 125 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 126 DBGCNF_SUBPAGE_CODE, /* subpage */ 127 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 128 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 129 0, /* page_version */ 130 {0xff,0xff}, /* ctl_time_io_secs */ 131}; 132 133static struct scsi_da_rw_recovery_page rw_er_page_default = { 134 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 135 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 136 /*byte3*/SMS_RWER_AWRE|SMS_RWER_ARRE, 137 /*read_retry_count*/0, 138 /*correction_span*/0, 139 /*head_offset_count*/0, 140 /*data_strobe_offset_cnt*/0, 141 /*byte8*/SMS_RWER_LBPERE, 142 /*write_retry_count*/0, 143 /*reserved2*/0, 144 /*recovery_time_limit*/{0, 0}, 145}; 146 147static struct scsi_da_rw_recovery_page rw_er_page_changeable = { 148 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 149 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 150 /*byte3*/0, 151 /*read_retry_count*/0, 152 /*correction_span*/0, 153 /*head_offset_count*/0, 154 /*data_strobe_offset_cnt*/0, 155 /*byte8*/0, 156 /*write_retry_count*/0, 157 /*reserved2*/0, 158 /*recovery_time_limit*/{0, 0}, 159}; 160 161static struct scsi_format_page format_page_default = { 162 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 163 /*page_length*/sizeof(struct scsi_format_page) - 2, 164 /*tracks_per_zone*/ {0, 0}, 165 /*alt_sectors_per_zone*/ {0, 0}, 166 /*alt_tracks_per_zone*/ {0, 0}, 167 /*alt_tracks_per_lun*/ {0, 0}, 168 /*sectors_per_track*/ {(CTL_DEFAULT_SECTORS_PER_TRACK >> 8) & 0xff, 169 CTL_DEFAULT_SECTORS_PER_TRACK & 0xff}, 170 /*bytes_per_sector*/ {0, 0}, 171 /*interleave*/ {0, 0}, 172 /*track_skew*/ {0, 0}, 173 /*cylinder_skew*/ {0, 0}, 174 /*flags*/ SFP_HSEC, 175 /*reserved*/ {0, 0, 0} 176}; 177 178static struct scsi_format_page format_page_changeable = { 179 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 180 /*page_length*/sizeof(struct scsi_format_page) - 2, 181 /*tracks_per_zone*/ {0, 0}, 182 /*alt_sectors_per_zone*/ {0, 0}, 183 /*alt_tracks_per_zone*/ {0, 0}, 184 /*alt_tracks_per_lun*/ {0, 0}, 185 /*sectors_per_track*/ {0, 0}, 186 /*bytes_per_sector*/ {0, 0}, 187 /*interleave*/ {0, 0}, 188 /*track_skew*/ {0, 0}, 189 /*cylinder_skew*/ {0, 0}, 190 /*flags*/ 0, 191 /*reserved*/ {0, 0, 0} 192}; 193 194static struct scsi_rigid_disk_page rigid_disk_page_default = { 195 /*page_code*/SMS_RIGID_DISK_PAGE, 196 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 197 /*cylinders*/ {0, 0, 0}, 198 /*heads*/ CTL_DEFAULT_HEADS, 199 /*start_write_precomp*/ {0, 0, 0}, 200 /*start_reduced_current*/ {0, 0, 0}, 201 /*step_rate*/ {0, 0}, 202 /*landing_zone_cylinder*/ {0, 0, 0}, 203 /*rpl*/ SRDP_RPL_DISABLED, 204 /*rotational_offset*/ 0, 205 /*reserved1*/ 0, 206 /*rotation_rate*/ {(CTL_DEFAULT_ROTATION_RATE >> 8) & 0xff, 207 CTL_DEFAULT_ROTATION_RATE & 0xff}, 208 /*reserved2*/ {0, 0} 209}; 210 211static struct scsi_rigid_disk_page rigid_disk_page_changeable = { 212 /*page_code*/SMS_RIGID_DISK_PAGE, 213 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 214 /*cylinders*/ {0, 0, 0}, 215 /*heads*/ 0, 216 /*start_write_precomp*/ {0, 0, 0}, 217 /*start_reduced_current*/ {0, 0, 0}, 218 /*step_rate*/ {0, 0}, 219 /*landing_zone_cylinder*/ {0, 0, 0}, 220 /*rpl*/ 0, 221 /*rotational_offset*/ 0, 222 /*reserved1*/ 0, 223 /*rotation_rate*/ {0, 0}, 224 /*reserved2*/ {0, 0} 225}; 226 227static struct scsi_caching_page caching_page_default = { 228 /*page_code*/SMS_CACHING_PAGE, 229 /*page_length*/sizeof(struct scsi_caching_page) - 2, 230 /*flags1*/ SCP_DISC | SCP_WCE, 231 /*ret_priority*/ 0, 232 /*disable_pf_transfer_len*/ {0xff, 0xff}, 233 /*min_prefetch*/ {0, 0}, 234 /*max_prefetch*/ {0xff, 0xff}, 235 /*max_pf_ceiling*/ {0xff, 0xff}, 236 /*flags2*/ 0, 237 /*cache_segments*/ 0, 238 /*cache_seg_size*/ {0, 0}, 239 /*reserved*/ 0, 240 /*non_cache_seg_size*/ {0, 0, 0} 241}; 242 243static struct scsi_caching_page caching_page_changeable = { 244 /*page_code*/SMS_CACHING_PAGE, 245 /*page_length*/sizeof(struct scsi_caching_page) - 2, 246 /*flags1*/ SCP_WCE | SCP_RCD, 247 /*ret_priority*/ 0, 248 /*disable_pf_transfer_len*/ {0, 0}, 249 /*min_prefetch*/ {0, 0}, 250 /*max_prefetch*/ {0, 0}, 251 /*max_pf_ceiling*/ {0, 0}, 252 /*flags2*/ 0, 253 /*cache_segments*/ 0, 254 /*cache_seg_size*/ {0, 0}, 255 /*reserved*/ 0, 256 /*non_cache_seg_size*/ {0, 0, 0} 257}; 258 259static struct scsi_control_page control_page_default = { 260 /*page_code*/SMS_CONTROL_MODE_PAGE, 261 /*page_length*/sizeof(struct scsi_control_page) - 2, 262 /*rlec*/0, 263 /*queue_flags*/SCP_QUEUE_ALG_RESTRICTED, 264 /*eca_and_aen*/0, 265 /*flags4*/SCP_TAS, 266 /*aen_holdoff_period*/{0, 0}, 267 /*busy_timeout_period*/{0, 0}, 268 /*extended_selftest_completion_time*/{0, 0} 269}; 270 271static struct scsi_control_page control_page_changeable = { 272 /*page_code*/SMS_CONTROL_MODE_PAGE, 273 /*page_length*/sizeof(struct scsi_control_page) - 2, 274 /*rlec*/SCP_DSENSE, 275 /*queue_flags*/SCP_QUEUE_ALG_MASK, 276 /*eca_and_aen*/SCP_SWP, 277 /*flags4*/0, 278 /*aen_holdoff_period*/{0, 0}, 279 /*busy_timeout_period*/{0, 0}, 280 /*extended_selftest_completion_time*/{0, 0} 281}; 282 283static struct scsi_info_exceptions_page ie_page_default = { 284 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 285 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 286 /*info_flags*/SIEP_FLAGS_DEXCPT, 287 /*mrie*/0, 288 /*interval_timer*/{0, 0, 0, 0}, 289 /*report_count*/{0, 0, 0, 0} 290}; 291 292static struct scsi_info_exceptions_page ie_page_changeable = { 293 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 294 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 295 /*info_flags*/0, 296 /*mrie*/0, 297 /*interval_timer*/{0, 0, 0, 0}, 298 /*report_count*/{0, 0, 0, 0} 299}; 300 301#define CTL_LBPM_LEN (sizeof(struct ctl_logical_block_provisioning_page) - 4) 302 303static struct ctl_logical_block_provisioning_page lbp_page_default = {{ 304 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 305 /*subpage_code*/0x02, 306 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 307 /*flags*/0, 308 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 309 /*descr*/{}}, 310 {{/*flags*/0, 311 /*resource*/0x01, 312 /*reserved*/{0, 0}, 313 /*count*/{0, 0, 0, 0}}, 314 {/*flags*/0, 315 /*resource*/0x02, 316 /*reserved*/{0, 0}, 317 /*count*/{0, 0, 0, 0}}, 318 {/*flags*/0, 319 /*resource*/0xf1, 320 /*reserved*/{0, 0}, 321 /*count*/{0, 0, 0, 0}}, 322 {/*flags*/0, 323 /*resource*/0xf2, 324 /*reserved*/{0, 0}, 325 /*count*/{0, 0, 0, 0}} 326 } 327}; 328 329static struct ctl_logical_block_provisioning_page lbp_page_changeable = {{ 330 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 331 /*subpage_code*/0x02, 332 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 333 /*flags*/0, 334 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 335 /*descr*/{}}, 336 {{/*flags*/0, 337 /*resource*/0, 338 /*reserved*/{0, 0}, 339 /*count*/{0, 0, 0, 0}}, 340 {/*flags*/0, 341 /*resource*/0, 342 /*reserved*/{0, 0}, 343 /*count*/{0, 0, 0, 0}}, 344 {/*flags*/0, 345 /*resource*/0, 346 /*reserved*/{0, 0}, 347 /*count*/{0, 0, 0, 0}}, 348 {/*flags*/0, 349 /*resource*/0, 350 /*reserved*/{0, 0}, 351 /*count*/{0, 0, 0, 0}} 352 } 353}; 354 355/* 356 * XXX KDM move these into the softc. 357 */ 358static int rcv_sync_msg; 359static uint8_t ctl_pause_rtr; 360 361SYSCTL_NODE(_kern_cam, OID_AUTO, ctl, CTLFLAG_RD, 0, "CAM Target Layer"); 362static int worker_threads = -1; 363SYSCTL_INT(_kern_cam_ctl, OID_AUTO, worker_threads, CTLFLAG_RDTUN, 364 &worker_threads, 1, "Number of worker threads"); 365static int ctl_debug = CTL_DEBUG_NONE; 366SYSCTL_INT(_kern_cam_ctl, OID_AUTO, debug, CTLFLAG_RWTUN, 367 &ctl_debug, 0, "Enabled debug flags"); 368 369/* 370 * Supported pages (0x00), Serial number (0x80), Device ID (0x83), 371 * Extended INQUIRY Data (0x86), Mode Page Policy (0x87), 372 * SCSI Ports (0x88), Third-party Copy (0x8F), Block limits (0xB0), 373 * Block Device Characteristics (0xB1) and Logical Block Provisioning (0xB2) 374 */ 375#define SCSI_EVPD_NUM_SUPPORTED_PAGES 10 376 377static void ctl_isc_event_handler(ctl_ha_channel chanel, ctl_ha_event event, 378 int param); 379static void ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest); 380static int ctl_init(void); 381void ctl_shutdown(void); 382static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td); 383static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td); 384static void ctl_ioctl_online(void *arg); 385static void ctl_ioctl_offline(void *arg); 386static int ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id); 387static int ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id); 388static int ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio); 389static int ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio); 390static int ctl_ioctl_submit_wait(union ctl_io *io); 391static void ctl_ioctl_datamove(union ctl_io *io); 392static void ctl_ioctl_done(union ctl_io *io); 393static void ctl_ioctl_hard_startstop_callback(void *arg, 394 struct cfi_metatask *metatask); 395static void ctl_ioctl_bbrread_callback(void *arg,struct cfi_metatask *metatask); 396static int ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 397 struct ctl_ooa *ooa_hdr, 398 struct ctl_ooa_entry *kern_entries); 399static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 400 struct thread *td); 401static uint32_t ctl_map_lun(int port_num, uint32_t lun); 402static uint32_t ctl_map_lun_back(int port_num, uint32_t lun); 403#ifdef unused 404static union ctl_io *ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, 405 uint32_t targ_target, uint32_t targ_lun, 406 int can_wait); 407static void ctl_kfree_io(union ctl_io *io); 408#endif /* unused */ 409static int ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 410 struct ctl_be_lun *be_lun, struct ctl_id target_id); 411static int ctl_free_lun(struct ctl_lun *lun); 412static void ctl_create_lun(struct ctl_be_lun *be_lun); 413/** 414static void ctl_failover_change_pages(struct ctl_softc *softc, 415 struct ctl_scsiio *ctsio, int master); 416**/ 417 418static int ctl_do_mode_select(union ctl_io *io); 419static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, 420 uint64_t res_key, uint64_t sa_res_key, 421 uint8_t type, uint32_t residx, 422 struct ctl_scsiio *ctsio, 423 struct scsi_per_res_out *cdb, 424 struct scsi_per_res_out_parms* param); 425static void ctl_pro_preempt_other(struct ctl_lun *lun, 426 union ctl_ha_msg *msg); 427static void ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg); 428static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 429static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 430static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 431static int ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len); 432static int ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len); 433static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, 434 int alloc_len); 435static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 436 int alloc_len); 437static int ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len); 438static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 439static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 440static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 441static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len); 442static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2); 443static ctl_action ctl_check_for_blockage(struct ctl_lun *lun, 444 union ctl_io *pending_io, union ctl_io *ooa_io); 445static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 446 union ctl_io *starting_io); 447static int ctl_check_blocked(struct ctl_lun *lun); 448static int ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, 449 struct ctl_lun *lun, 450 const struct ctl_cmd_entry *entry, 451 struct ctl_scsiio *ctsio); 452//static int ctl_check_rtr(union ctl_io *pending_io, struct ctl_softc *softc); 453static void ctl_failover(void); 454static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 455 struct ctl_scsiio *ctsio); 456static int ctl_scsiio(struct ctl_scsiio *ctsio); 457 458static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 459static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 460 ctl_ua_type ua_type); 461static int ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, 462 ctl_ua_type ua_type); 463static int ctl_abort_task(union ctl_io *io); 464static int ctl_abort_task_set(union ctl_io *io); 465static int ctl_i_t_nexus_reset(union ctl_io *io); 466static void ctl_run_task(union ctl_io *io); 467#ifdef CTL_IO_DELAY 468static void ctl_datamove_timer_wakeup(void *arg); 469static void ctl_done_timer_wakeup(void *arg); 470#endif /* CTL_IO_DELAY */ 471 472static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 473static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 474static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 475static void ctl_datamove_remote_write(union ctl_io *io); 476static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 477static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 478static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 479static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 480 ctl_ha_dt_cb callback); 481static void ctl_datamove_remote_read(union ctl_io *io); 482static void ctl_datamove_remote(union ctl_io *io); 483static int ctl_process_done(union ctl_io *io); 484static void ctl_lun_thread(void *arg); 485static void ctl_thresh_thread(void *arg); 486static void ctl_work_thread(void *arg); 487static void ctl_enqueue_incoming(union ctl_io *io); 488static void ctl_enqueue_rtr(union ctl_io *io); 489static void ctl_enqueue_done(union ctl_io *io); 490static void ctl_enqueue_isc(union ctl_io *io); 491static const struct ctl_cmd_entry * 492 ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa); 493static const struct ctl_cmd_entry * 494 ctl_validate_command(struct ctl_scsiio *ctsio); 495static int ctl_cmd_applicable(uint8_t lun_type, 496 const struct ctl_cmd_entry *entry); 497 498/* 499 * Load the serialization table. This isn't very pretty, but is probably 500 * the easiest way to do it. 501 */ 502#include "ctl_ser_table.c" 503 504/* 505 * We only need to define open, close and ioctl routines for this driver. 506 */ 507static struct cdevsw ctl_cdevsw = { 508 .d_version = D_VERSION, 509 .d_flags = 0, 510 .d_open = ctl_open, 511 .d_close = ctl_close, 512 .d_ioctl = ctl_ioctl, 513 .d_name = "ctl", 514}; 515 516 517MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 518MALLOC_DEFINE(M_CTLIO, "ctlio", "Memory used for CTL requests"); 519 520static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 521 522static moduledata_t ctl_moduledata = { 523 "ctl", 524 ctl_module_event_handler, 525 NULL 526}; 527 528DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 529MODULE_VERSION(ctl, 1); 530 531static struct ctl_frontend ioctl_frontend = 532{ 533 .name = "ioctl", 534}; 535 536static void 537ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 538 union ctl_ha_msg *msg_info) 539{ 540 struct ctl_scsiio *ctsio; 541 542 if (msg_info->hdr.original_sc == NULL) { 543 printf("%s: original_sc == NULL!\n", __func__); 544 /* XXX KDM now what? */ 545 return; 546 } 547 548 ctsio = &msg_info->hdr.original_sc->scsiio; 549 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 550 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 551 ctsio->io_hdr.status = msg_info->hdr.status; 552 ctsio->scsi_status = msg_info->scsi.scsi_status; 553 ctsio->sense_len = msg_info->scsi.sense_len; 554 ctsio->sense_residual = msg_info->scsi.sense_residual; 555 ctsio->residual = msg_info->scsi.residual; 556 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 557 sizeof(ctsio->sense_data)); 558 memcpy(&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 559 &msg_info->scsi.lbalen, sizeof(msg_info->scsi.lbalen)); 560 ctl_enqueue_isc((union ctl_io *)ctsio); 561} 562 563static void 564ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 565 union ctl_ha_msg *msg_info) 566{ 567 struct ctl_scsiio *ctsio; 568 569 if (msg_info->hdr.serializing_sc == NULL) { 570 printf("%s: serializing_sc == NULL!\n", __func__); 571 /* XXX KDM now what? */ 572 return; 573 } 574 575 ctsio = &msg_info->hdr.serializing_sc->scsiio; 576#if 0 577 /* 578 * Attempt to catch the situation where an I/O has 579 * been freed, and we're using it again. 580 */ 581 if (ctsio->io_hdr.io_type == 0xff) { 582 union ctl_io *tmp_io; 583 tmp_io = (union ctl_io *)ctsio; 584 printf("%s: %p use after free!\n", __func__, 585 ctsio); 586 printf("%s: type %d msg %d cdb %x iptl: " 587 "%d:%d:%d:%d tag 0x%04x " 588 "flag %#x status %x\n", 589 __func__, 590 tmp_io->io_hdr.io_type, 591 tmp_io->io_hdr.msg_type, 592 tmp_io->scsiio.cdb[0], 593 tmp_io->io_hdr.nexus.initid.id, 594 tmp_io->io_hdr.nexus.targ_port, 595 tmp_io->io_hdr.nexus.targ_target.id, 596 tmp_io->io_hdr.nexus.targ_lun, 597 (tmp_io->io_hdr.io_type == 598 CTL_IO_TASK) ? 599 tmp_io->taskio.tag_num : 600 tmp_io->scsiio.tag_num, 601 tmp_io->io_hdr.flags, 602 tmp_io->io_hdr.status); 603 } 604#endif 605 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 606 ctl_enqueue_isc((union ctl_io *)ctsio); 607} 608 609/* 610 * ISC (Inter Shelf Communication) event handler. Events from the HA 611 * subsystem come in here. 612 */ 613static void 614ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 615{ 616 struct ctl_softc *ctl_softc; 617 union ctl_io *io; 618 struct ctl_prio *presio; 619 ctl_ha_status isc_status; 620 621 ctl_softc = control_softc; 622 io = NULL; 623 624 625#if 0 626 printf("CTL: Isc Msg event %d\n", event); 627#endif 628 if (event == CTL_HA_EVT_MSG_RECV) { 629 union ctl_ha_msg msg_info; 630 631 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 632 sizeof(msg_info), /*wait*/ 0); 633#if 0 634 printf("CTL: msg_type %d\n", msg_info.msg_type); 635#endif 636 if (isc_status != 0) { 637 printf("Error receiving message, status = %d\n", 638 isc_status); 639 return; 640 } 641 642 switch (msg_info.hdr.msg_type) { 643 case CTL_MSG_SERIALIZE: 644#if 0 645 printf("Serialize\n"); 646#endif 647 io = ctl_alloc_io_nowait(ctl_softc->othersc_pool); 648 if (io == NULL) { 649 printf("ctl_isc_event_handler: can't allocate " 650 "ctl_io!\n"); 651 /* Bad Juju */ 652 /* Need to set busy and send msg back */ 653 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 654 msg_info.hdr.status = CTL_SCSI_ERROR; 655 msg_info.scsi.scsi_status = SCSI_STATUS_BUSY; 656 msg_info.scsi.sense_len = 0; 657 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 658 sizeof(msg_info), 0) > CTL_HA_STATUS_SUCCESS){ 659 } 660 goto bailout; 661 } 662 ctl_zero_io(io); 663 // populate ctsio from msg_info 664 io->io_hdr.io_type = CTL_IO_SCSI; 665 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 666 io->io_hdr.original_sc = msg_info.hdr.original_sc; 667#if 0 668 printf("pOrig %x\n", (int)msg_info.original_sc); 669#endif 670 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 671 CTL_FLAG_IO_ACTIVE; 672 /* 673 * If we're in serialization-only mode, we don't 674 * want to go through full done processing. Thus 675 * the COPY flag. 676 * 677 * XXX KDM add another flag that is more specific. 678 */ 679 if (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY) 680 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 681 io->io_hdr.nexus = msg_info.hdr.nexus; 682#if 0 683 printf("targ %d, port %d, iid %d, lun %d\n", 684 io->io_hdr.nexus.targ_target.id, 685 io->io_hdr.nexus.targ_port, 686 io->io_hdr.nexus.initid.id, 687 io->io_hdr.nexus.targ_lun); 688#endif 689 io->scsiio.tag_num = msg_info.scsi.tag_num; 690 io->scsiio.tag_type = msg_info.scsi.tag_type; 691 memcpy(io->scsiio.cdb, msg_info.scsi.cdb, 692 CTL_MAX_CDBLEN); 693 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 694 const struct ctl_cmd_entry *entry; 695 696 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 697 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 698 io->io_hdr.flags |= 699 entry->flags & CTL_FLAG_DATA_MASK; 700 } 701 ctl_enqueue_isc(io); 702 break; 703 704 /* Performed on the Originating SC, XFER mode only */ 705 case CTL_MSG_DATAMOVE: { 706 struct ctl_sg_entry *sgl; 707 int i, j; 708 709 io = msg_info.hdr.original_sc; 710 if (io == NULL) { 711 printf("%s: original_sc == NULL!\n", __func__); 712 /* XXX KDM do something here */ 713 break; 714 } 715 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 716 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 717 /* 718 * Keep track of this, we need to send it back over 719 * when the datamove is complete. 720 */ 721 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 722 723 if (msg_info.dt.sg_sequence == 0) { 724 /* 725 * XXX KDM we use the preallocated S/G list 726 * here, but we'll need to change this to 727 * dynamic allocation if we need larger S/G 728 * lists. 729 */ 730 if (msg_info.dt.kern_sg_entries > 731 sizeof(io->io_hdr.remote_sglist) / 732 sizeof(io->io_hdr.remote_sglist[0])) { 733 printf("%s: number of S/G entries " 734 "needed %u > allocated num %zd\n", 735 __func__, 736 msg_info.dt.kern_sg_entries, 737 sizeof(io->io_hdr.remote_sglist)/ 738 sizeof(io->io_hdr.remote_sglist[0])); 739 740 /* 741 * XXX KDM send a message back to 742 * the other side to shut down the 743 * DMA. The error will come back 744 * through via the normal channel. 745 */ 746 break; 747 } 748 sgl = io->io_hdr.remote_sglist; 749 memset(sgl, 0, 750 sizeof(io->io_hdr.remote_sglist)); 751 752 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 753 754 io->scsiio.kern_sg_entries = 755 msg_info.dt.kern_sg_entries; 756 io->scsiio.rem_sg_entries = 757 msg_info.dt.kern_sg_entries; 758 io->scsiio.kern_data_len = 759 msg_info.dt.kern_data_len; 760 io->scsiio.kern_total_len = 761 msg_info.dt.kern_total_len; 762 io->scsiio.kern_data_resid = 763 msg_info.dt.kern_data_resid; 764 io->scsiio.kern_rel_offset = 765 msg_info.dt.kern_rel_offset; 766 /* 767 * Clear out per-DMA flags. 768 */ 769 io->io_hdr.flags &= ~CTL_FLAG_RDMA_MASK; 770 /* 771 * Add per-DMA flags that are set for this 772 * particular DMA request. 773 */ 774 io->io_hdr.flags |= msg_info.dt.flags & 775 CTL_FLAG_RDMA_MASK; 776 } else 777 sgl = (struct ctl_sg_entry *) 778 io->scsiio.kern_data_ptr; 779 780 for (i = msg_info.dt.sent_sg_entries, j = 0; 781 i < (msg_info.dt.sent_sg_entries + 782 msg_info.dt.cur_sg_entries); i++, j++) { 783 sgl[i].addr = msg_info.dt.sg_list[j].addr; 784 sgl[i].len = msg_info.dt.sg_list[j].len; 785 786#if 0 787 printf("%s: L: %p,%d -> %p,%d j=%d, i=%d\n", 788 __func__, 789 msg_info.dt.sg_list[j].addr, 790 msg_info.dt.sg_list[j].len, 791 sgl[i].addr, sgl[i].len, j, i); 792#endif 793 } 794#if 0 795 memcpy(&sgl[msg_info.dt.sent_sg_entries], 796 msg_info.dt.sg_list, 797 sizeof(*sgl) * msg_info.dt.cur_sg_entries); 798#endif 799 800 /* 801 * If this is the last piece of the I/O, we've got 802 * the full S/G list. Queue processing in the thread. 803 * Otherwise wait for the next piece. 804 */ 805 if (msg_info.dt.sg_last != 0) 806 ctl_enqueue_isc(io); 807 break; 808 } 809 /* Performed on the Serializing (primary) SC, XFER mode only */ 810 case CTL_MSG_DATAMOVE_DONE: { 811 if (msg_info.hdr.serializing_sc == NULL) { 812 printf("%s: serializing_sc == NULL!\n", 813 __func__); 814 /* XXX KDM now what? */ 815 break; 816 } 817 /* 818 * We grab the sense information here in case 819 * there was a failure, so we can return status 820 * back to the initiator. 821 */ 822 io = msg_info.hdr.serializing_sc; 823 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 824 io->io_hdr.status = msg_info.hdr.status; 825 io->scsiio.scsi_status = msg_info.scsi.scsi_status; 826 io->scsiio.sense_len = msg_info.scsi.sense_len; 827 io->scsiio.sense_residual =msg_info.scsi.sense_residual; 828 io->io_hdr.port_status = msg_info.scsi.fetd_status; 829 io->scsiio.residual = msg_info.scsi.residual; 830 memcpy(&io->scsiio.sense_data,&msg_info.scsi.sense_data, 831 sizeof(io->scsiio.sense_data)); 832 ctl_enqueue_isc(io); 833 break; 834 } 835 836 /* Preformed on Originating SC, SER_ONLY mode */ 837 case CTL_MSG_R2R: 838 io = msg_info.hdr.original_sc; 839 if (io == NULL) { 840 printf("%s: Major Bummer\n", __func__); 841 return; 842 } else { 843#if 0 844 printf("pOrig %x\n",(int) ctsio); 845#endif 846 } 847 io->io_hdr.msg_type = CTL_MSG_R2R; 848 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 849 ctl_enqueue_isc(io); 850 break; 851 852 /* 853 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 854 * mode. 855 * Performed on the Originating (i.e. secondary) SC in XFER 856 * mode 857 */ 858 case CTL_MSG_FINISH_IO: 859 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) 860 ctl_isc_handler_finish_xfer(ctl_softc, 861 &msg_info); 862 else 863 ctl_isc_handler_finish_ser_only(ctl_softc, 864 &msg_info); 865 break; 866 867 /* Preformed on Originating SC */ 868 case CTL_MSG_BAD_JUJU: 869 io = msg_info.hdr.original_sc; 870 if (io == NULL) { 871 printf("%s: Bad JUJU!, original_sc is NULL!\n", 872 __func__); 873 break; 874 } 875 ctl_copy_sense_data(&msg_info, io); 876 /* 877 * IO should have already been cleaned up on other 878 * SC so clear this flag so we won't send a message 879 * back to finish the IO there. 880 */ 881 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 882 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 883 884 /* io = msg_info.hdr.serializing_sc; */ 885 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 886 ctl_enqueue_isc(io); 887 break; 888 889 /* Handle resets sent from the other side */ 890 case CTL_MSG_MANAGE_TASKS: { 891 struct ctl_taskio *taskio; 892 taskio = (struct ctl_taskio *)ctl_alloc_io_nowait( 893 ctl_softc->othersc_pool); 894 if (taskio == NULL) { 895 printf("ctl_isc_event_handler: can't allocate " 896 "ctl_io!\n"); 897 /* Bad Juju */ 898 /* should I just call the proper reset func 899 here??? */ 900 goto bailout; 901 } 902 ctl_zero_io((union ctl_io *)taskio); 903 taskio->io_hdr.io_type = CTL_IO_TASK; 904 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 905 taskio->io_hdr.nexus = msg_info.hdr.nexus; 906 taskio->task_action = msg_info.task.task_action; 907 taskio->tag_num = msg_info.task.tag_num; 908 taskio->tag_type = msg_info.task.tag_type; 909#ifdef CTL_TIME_IO 910 taskio->io_hdr.start_time = time_uptime; 911 getbintime(&taskio->io_hdr.start_bt); 912#if 0 913 cs_prof_gettime(&taskio->io_hdr.start_ticks); 914#endif 915#endif /* CTL_TIME_IO */ 916 ctl_run_task((union ctl_io *)taskio); 917 break; 918 } 919 /* Persistent Reserve action which needs attention */ 920 case CTL_MSG_PERS_ACTION: 921 presio = (struct ctl_prio *)ctl_alloc_io_nowait( 922 ctl_softc->othersc_pool); 923 if (presio == NULL) { 924 printf("ctl_isc_event_handler: can't allocate " 925 "ctl_io!\n"); 926 /* Bad Juju */ 927 /* Need to set busy and send msg back */ 928 goto bailout; 929 } 930 ctl_zero_io((union ctl_io *)presio); 931 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 932 presio->pr_msg = msg_info.pr; 933 ctl_enqueue_isc((union ctl_io *)presio); 934 break; 935 case CTL_MSG_SYNC_FE: 936 rcv_sync_msg = 1; 937 break; 938 default: 939 printf("How did I get here?\n"); 940 } 941 } else if (event == CTL_HA_EVT_MSG_SENT) { 942 if (param != CTL_HA_STATUS_SUCCESS) { 943 printf("Bad status from ctl_ha_msg_send status %d\n", 944 param); 945 } 946 return; 947 } else if (event == CTL_HA_EVT_DISCONNECT) { 948 printf("CTL: Got a disconnect from Isc\n"); 949 return; 950 } else { 951 printf("ctl_isc_event_handler: Unknown event %d\n", event); 952 return; 953 } 954 955bailout: 956 return; 957} 958 959static void 960ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 961{ 962 struct scsi_sense_data *sense; 963 964 sense = &dest->scsiio.sense_data; 965 bcopy(&src->scsi.sense_data, sense, sizeof(*sense)); 966 dest->scsiio.scsi_status = src->scsi.scsi_status; 967 dest->scsiio.sense_len = src->scsi.sense_len; 968 dest->io_hdr.status = src->hdr.status; 969} 970 971static int 972ctl_ha_state_sysctl(SYSCTL_HANDLER_ARGS) 973{ 974 struct ctl_softc *softc = (struct ctl_softc *)arg1; 975 struct ctl_lun *lun; 976 int error, value, i; 977 978 if (softc->flags & CTL_FLAG_ACTIVE_SHELF) 979 value = 0; 980 else 981 value = 1; 982 983 error = sysctl_handle_int(oidp, &value, 0, req); 984 if ((error != 0) || (req->newptr == NULL)) 985 return (error); 986 987 mtx_lock(&softc->ctl_lock); 988 if (value == 0) 989 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 990 else 991 softc->flags &= ~CTL_FLAG_ACTIVE_SHELF; 992 STAILQ_FOREACH(lun, &softc->lun_list, links) { 993 mtx_lock(&lun->lun_lock); 994 for (i = 0; i < CTL_MAX_INITIATORS; i++) 995 lun->pending_ua[i] |= CTL_UA_ASYM_ACC_CHANGE; 996 mtx_unlock(&lun->lun_lock); 997 } 998 mtx_unlock(&softc->ctl_lock); 999 return (0); 1000} 1001 1002static int 1003ctl_init(void) 1004{ 1005 struct ctl_softc *softc; 1006 void *other_pool; 1007 struct ctl_port *port; 1008 int i, error, retval; 1009 //int isc_retval; 1010 1011 retval = 0; 1012 ctl_pause_rtr = 0; 1013 rcv_sync_msg = 0; 1014 1015 control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 1016 M_WAITOK | M_ZERO); 1017 softc = control_softc; 1018 1019 softc->dev = make_dev(&ctl_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, 1020 "cam/ctl"); 1021 1022 softc->dev->si_drv1 = softc; 1023 1024 /* 1025 * By default, return a "bad LUN" peripheral qualifier for unknown 1026 * LUNs. The user can override this default using the tunable or 1027 * sysctl. See the comment in ctl_inquiry_std() for more details. 1028 */ 1029 softc->inquiry_pq_no_lun = 1; 1030 TUNABLE_INT_FETCH("kern.cam.ctl.inquiry_pq_no_lun", 1031 &softc->inquiry_pq_no_lun); 1032 sysctl_ctx_init(&softc->sysctl_ctx); 1033 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1034 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 1035 CTLFLAG_RD, 0, "CAM Target Layer"); 1036 1037 if (softc->sysctl_tree == NULL) { 1038 printf("%s: unable to allocate sysctl tree\n", __func__); 1039 destroy_dev(softc->dev); 1040 free(control_softc, M_DEVBUF); 1041 control_softc = NULL; 1042 return (ENOMEM); 1043 } 1044 1045 SYSCTL_ADD_INT(&softc->sysctl_ctx, 1046 SYSCTL_CHILDREN(softc->sysctl_tree), OID_AUTO, 1047 "inquiry_pq_no_lun", CTLFLAG_RW, 1048 &softc->inquiry_pq_no_lun, 0, 1049 "Report no lun possible for invalid LUNs"); 1050 1051 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 1052 softc->io_zone = uma_zcreate("CTL IO", sizeof(union ctl_io), 1053 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); 1054 softc->open_count = 0; 1055 1056 /* 1057 * Default to actually sending a SYNCHRONIZE CACHE command down to 1058 * the drive. 1059 */ 1060 softc->flags = CTL_FLAG_REAL_SYNC; 1061 1062 /* 1063 * In Copan's HA scheme, the "master" and "slave" roles are 1064 * figured out through the slot the controller is in. Although it 1065 * is an active/active system, someone has to be in charge. 1066 */ 1067 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1068 OID_AUTO, "ha_id", CTLFLAG_RDTUN, &softc->ha_id, 0, 1069 "HA head ID (0 - no HA)"); 1070 if (softc->ha_id == 0) { 1071 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1072 softc->is_single = 1; 1073 softc->port_offset = 0; 1074 } else 1075 softc->port_offset = (softc->ha_id - 1) * CTL_MAX_PORTS; 1076 softc->persis_offset = softc->port_offset * CTL_MAX_INIT_PER_PORT; 1077 1078 /* 1079 * XXX KDM need to figure out where we want to get our target ID 1080 * and WWID. Is it different on each port? 1081 */ 1082 softc->target.id = 0; 1083 softc->target.wwid[0] = 0x12345678; 1084 softc->target.wwid[1] = 0x87654321; 1085 STAILQ_INIT(&softc->lun_list); 1086 STAILQ_INIT(&softc->pending_lun_queue); 1087 STAILQ_INIT(&softc->fe_list); 1088 STAILQ_INIT(&softc->port_list); 1089 STAILQ_INIT(&softc->be_list); 1090 ctl_tpc_init(softc); 1091 1092 if (ctl_pool_create(softc, "othersc", CTL_POOL_ENTRIES_OTHER_SC, 1093 &other_pool) != 0) 1094 { 1095 printf("ctl: can't allocate %d entry other SC pool, " 1096 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1097 return (ENOMEM); 1098 } 1099 softc->othersc_pool = other_pool; 1100 1101 if (worker_threads <= 0) 1102 worker_threads = max(1, mp_ncpus / 4); 1103 if (worker_threads > CTL_MAX_THREADS) 1104 worker_threads = CTL_MAX_THREADS; 1105 1106 for (i = 0; i < worker_threads; i++) { 1107 struct ctl_thread *thr = &softc->threads[i]; 1108 1109 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1110 thr->ctl_softc = softc; 1111 STAILQ_INIT(&thr->incoming_queue); 1112 STAILQ_INIT(&thr->rtr_queue); 1113 STAILQ_INIT(&thr->done_queue); 1114 STAILQ_INIT(&thr->isc_queue); 1115 1116 error = kproc_kthread_add(ctl_work_thread, thr, 1117 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1118 if (error != 0) { 1119 printf("error creating CTL work thread!\n"); 1120 ctl_pool_free(other_pool); 1121 return (error); 1122 } 1123 } 1124 error = kproc_kthread_add(ctl_lun_thread, softc, 1125 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1126 if (error != 0) { 1127 printf("error creating CTL lun thread!\n"); 1128 ctl_pool_free(other_pool); 1129 return (error); 1130 } 1131 error = kproc_kthread_add(ctl_thresh_thread, softc, 1132 &softc->ctl_proc, NULL, 0, 0, "ctl", "thresh"); 1133 if (error != 0) { 1134 printf("error creating CTL threshold thread!\n"); 1135 ctl_pool_free(other_pool); 1136 return (error); 1137 } 1138 if (bootverbose) 1139 printf("ctl: CAM Target Layer loaded\n"); 1140 1141 /* 1142 * Initialize the ioctl front end. 1143 */ 1144 ctl_frontend_register(&ioctl_frontend); 1145 port = &softc->ioctl_info.port; 1146 port->frontend = &ioctl_frontend; 1147 sprintf(softc->ioctl_info.port_name, "ioctl"); 1148 port->port_type = CTL_PORT_IOCTL; 1149 port->num_requested_ctl_io = 100; 1150 port->port_name = softc->ioctl_info.port_name; 1151 port->port_online = ctl_ioctl_online; 1152 port->port_offline = ctl_ioctl_offline; 1153 port->onoff_arg = &softc->ioctl_info; 1154 port->lun_enable = ctl_ioctl_lun_enable; 1155 port->lun_disable = ctl_ioctl_lun_disable; 1156 port->targ_lun_arg = &softc->ioctl_info; 1157 port->fe_datamove = ctl_ioctl_datamove; 1158 port->fe_done = ctl_ioctl_done; 1159 port->max_targets = 15; 1160 port->max_target_id = 15; 1161 1162 if (ctl_port_register(&softc->ioctl_info.port) != 0) { 1163 printf("ctl: ioctl front end registration failed, will " 1164 "continue anyway\n"); 1165 } 1166 1167 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1168 OID_AUTO, "ha_state", CTLTYPE_INT | CTLFLAG_RWTUN, 1169 softc, 0, ctl_ha_state_sysctl, "I", "HA state for this head"); 1170 1171#ifdef CTL_IO_DELAY 1172 if (sizeof(struct callout) > CTL_TIMER_BYTES) { 1173 printf("sizeof(struct callout) %zd > CTL_TIMER_BYTES %zd\n", 1174 sizeof(struct callout), CTL_TIMER_BYTES); 1175 return (EINVAL); 1176 } 1177#endif /* CTL_IO_DELAY */ 1178 1179 return (0); 1180} 1181 1182void 1183ctl_shutdown(void) 1184{ 1185 struct ctl_softc *softc; 1186 struct ctl_lun *lun, *next_lun; 1187 1188 softc = (struct ctl_softc *)control_softc; 1189 1190 if (ctl_port_deregister(&softc->ioctl_info.port) != 0) 1191 printf("ctl: ioctl front end deregistration failed\n"); 1192 1193 mtx_lock(&softc->ctl_lock); 1194 1195 /* 1196 * Free up each LUN. 1197 */ 1198 for (lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; lun = next_lun){ 1199 next_lun = STAILQ_NEXT(lun, links); 1200 ctl_free_lun(lun); 1201 } 1202 1203 mtx_unlock(&softc->ctl_lock); 1204 1205 ctl_frontend_deregister(&ioctl_frontend); 1206 1207#if 0 1208 ctl_shutdown_thread(softc->work_thread); 1209 mtx_destroy(&softc->queue_lock); 1210#endif 1211 1212 ctl_tpc_shutdown(softc); 1213 uma_zdestroy(softc->io_zone); 1214 mtx_destroy(&softc->ctl_lock); 1215 1216 destroy_dev(softc->dev); 1217 1218 sysctl_ctx_free(&softc->sysctl_ctx); 1219 1220 free(control_softc, M_DEVBUF); 1221 control_softc = NULL; 1222 1223 if (bootverbose) 1224 printf("ctl: CAM Target Layer unloaded\n"); 1225} 1226 1227static int 1228ctl_module_event_handler(module_t mod, int what, void *arg) 1229{ 1230 1231 switch (what) { 1232 case MOD_LOAD: 1233 return (ctl_init()); 1234 case MOD_UNLOAD: 1235 return (EBUSY); 1236 default: 1237 return (EOPNOTSUPP); 1238 } 1239} 1240 1241/* 1242 * XXX KDM should we do some access checks here? Bump a reference count to 1243 * prevent a CTL module from being unloaded while someone has it open? 1244 */ 1245static int 1246ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1247{ 1248 return (0); 1249} 1250 1251static int 1252ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1253{ 1254 return (0); 1255} 1256 1257int 1258ctl_port_enable(ctl_port_type port_type) 1259{ 1260 struct ctl_softc *softc = control_softc; 1261 struct ctl_port *port; 1262 1263 if (softc->is_single == 0) { 1264 union ctl_ha_msg msg_info; 1265 int isc_retval; 1266 1267#if 0 1268 printf("%s: HA mode, synchronizing frontend enable\n", 1269 __func__); 1270#endif 1271 msg_info.hdr.msg_type = CTL_MSG_SYNC_FE; 1272 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1273 sizeof(msg_info), 1 )) > CTL_HA_STATUS_SUCCESS) { 1274 printf("Sync msg send error retval %d\n", isc_retval); 1275 } 1276 if (!rcv_sync_msg) { 1277 isc_retval=ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 1278 sizeof(msg_info), 1); 1279 } 1280#if 0 1281 printf("CTL:Frontend Enable\n"); 1282 } else { 1283 printf("%s: single mode, skipping frontend synchronization\n", 1284 __func__); 1285#endif 1286 } 1287 1288 STAILQ_FOREACH(port, &softc->port_list, links) { 1289 if (port_type & port->port_type) 1290 { 1291#if 0 1292 printf("port %d\n", port->targ_port); 1293#endif 1294 ctl_port_online(port); 1295 } 1296 } 1297 1298 return (0); 1299} 1300 1301int 1302ctl_port_disable(ctl_port_type port_type) 1303{ 1304 struct ctl_softc *softc; 1305 struct ctl_port *port; 1306 1307 softc = control_softc; 1308 1309 STAILQ_FOREACH(port, &softc->port_list, links) { 1310 if (port_type & port->port_type) 1311 ctl_port_offline(port); 1312 } 1313 1314 return (0); 1315} 1316 1317/* 1318 * Returns 0 for success, 1 for failure. 1319 * Currently the only failure mode is if there aren't enough entries 1320 * allocated. So, in case of a failure, look at num_entries_dropped, 1321 * reallocate and try again. 1322 */ 1323int 1324ctl_port_list(struct ctl_port_entry *entries, int num_entries_alloced, 1325 int *num_entries_filled, int *num_entries_dropped, 1326 ctl_port_type port_type, int no_virtual) 1327{ 1328 struct ctl_softc *softc; 1329 struct ctl_port *port; 1330 int entries_dropped, entries_filled; 1331 int retval; 1332 int i; 1333 1334 softc = control_softc; 1335 1336 retval = 0; 1337 entries_filled = 0; 1338 entries_dropped = 0; 1339 1340 i = 0; 1341 mtx_lock(&softc->ctl_lock); 1342 STAILQ_FOREACH(port, &softc->port_list, links) { 1343 struct ctl_port_entry *entry; 1344 1345 if ((port->port_type & port_type) == 0) 1346 continue; 1347 1348 if ((no_virtual != 0) 1349 && (port->virtual_port != 0)) 1350 continue; 1351 1352 if (entries_filled >= num_entries_alloced) { 1353 entries_dropped++; 1354 continue; 1355 } 1356 entry = &entries[i]; 1357 1358 entry->port_type = port->port_type; 1359 strlcpy(entry->port_name, port->port_name, 1360 sizeof(entry->port_name)); 1361 entry->physical_port = port->physical_port; 1362 entry->virtual_port = port->virtual_port; 1363 entry->wwnn = port->wwnn; 1364 entry->wwpn = port->wwpn; 1365 1366 i++; 1367 entries_filled++; 1368 } 1369 1370 mtx_unlock(&softc->ctl_lock); 1371 1372 if (entries_dropped > 0) 1373 retval = 1; 1374 1375 *num_entries_dropped = entries_dropped; 1376 *num_entries_filled = entries_filled; 1377 1378 return (retval); 1379} 1380 1381static void 1382ctl_ioctl_online(void *arg) 1383{ 1384 struct ctl_ioctl_info *ioctl_info; 1385 1386 ioctl_info = (struct ctl_ioctl_info *)arg; 1387 1388 ioctl_info->flags |= CTL_IOCTL_FLAG_ENABLED; 1389} 1390 1391static void 1392ctl_ioctl_offline(void *arg) 1393{ 1394 struct ctl_ioctl_info *ioctl_info; 1395 1396 ioctl_info = (struct ctl_ioctl_info *)arg; 1397 1398 ioctl_info->flags &= ~CTL_IOCTL_FLAG_ENABLED; 1399} 1400 1401/* 1402 * Remove an initiator by port number and initiator ID. 1403 * Returns 0 for success, -1 for failure. 1404 */ 1405int 1406ctl_remove_initiator(struct ctl_port *port, int iid) 1407{ 1408 struct ctl_softc *softc = control_softc; 1409 1410 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1411 1412 if (iid > CTL_MAX_INIT_PER_PORT) { 1413 printf("%s: initiator ID %u > maximun %u!\n", 1414 __func__, iid, CTL_MAX_INIT_PER_PORT); 1415 return (-1); 1416 } 1417 1418 mtx_lock(&softc->ctl_lock); 1419 port->wwpn_iid[iid].in_use--; 1420 port->wwpn_iid[iid].last_use = time_uptime; 1421 mtx_unlock(&softc->ctl_lock); 1422 1423 return (0); 1424} 1425 1426/* 1427 * Add an initiator to the initiator map. 1428 * Returns iid for success, < 0 for failure. 1429 */ 1430int 1431ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 1432{ 1433 struct ctl_softc *softc = control_softc; 1434 time_t best_time; 1435 int i, best; 1436 1437 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1438 1439 if (iid >= CTL_MAX_INIT_PER_PORT) { 1440 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 1441 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 1442 free(name, M_CTL); 1443 return (-1); 1444 } 1445 1446 mtx_lock(&softc->ctl_lock); 1447 1448 if (iid < 0 && (wwpn != 0 || name != NULL)) { 1449 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1450 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 1451 iid = i; 1452 break; 1453 } 1454 if (name != NULL && port->wwpn_iid[i].name != NULL && 1455 strcmp(name, port->wwpn_iid[i].name) == 0) { 1456 iid = i; 1457 break; 1458 } 1459 } 1460 } 1461 1462 if (iid < 0) { 1463 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1464 if (port->wwpn_iid[i].in_use == 0 && 1465 port->wwpn_iid[i].wwpn == 0 && 1466 port->wwpn_iid[i].name == NULL) { 1467 iid = i; 1468 break; 1469 } 1470 } 1471 } 1472 1473 if (iid < 0) { 1474 best = -1; 1475 best_time = INT32_MAX; 1476 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1477 if (port->wwpn_iid[i].in_use == 0) { 1478 if (port->wwpn_iid[i].last_use < best_time) { 1479 best = i; 1480 best_time = port->wwpn_iid[i].last_use; 1481 } 1482 } 1483 } 1484 iid = best; 1485 } 1486 1487 if (iid < 0) { 1488 mtx_unlock(&softc->ctl_lock); 1489 free(name, M_CTL); 1490 return (-2); 1491 } 1492 1493 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 1494 /* 1495 * This is not an error yet. 1496 */ 1497 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 1498#if 0 1499 printf("%s: port %d iid %u WWPN %#jx arrived" 1500 " again\n", __func__, port->targ_port, 1501 iid, (uintmax_t)wwpn); 1502#endif 1503 goto take; 1504 } 1505 if (name != NULL && port->wwpn_iid[iid].name != NULL && 1506 strcmp(name, port->wwpn_iid[iid].name) == 0) { 1507#if 0 1508 printf("%s: port %d iid %u name '%s' arrived" 1509 " again\n", __func__, port->targ_port, 1510 iid, name); 1511#endif 1512 goto take; 1513 } 1514 1515 /* 1516 * This is an error, but what do we do about it? The 1517 * driver is telling us we have a new WWPN for this 1518 * initiator ID, so we pretty much need to use it. 1519 */ 1520 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 1521 " but WWPN %#jx '%s' is still at that address\n", 1522 __func__, port->targ_port, iid, wwpn, name, 1523 (uintmax_t)port->wwpn_iid[iid].wwpn, 1524 port->wwpn_iid[iid].name); 1525 1526 /* 1527 * XXX KDM clear have_ca and ua_pending on each LUN for 1528 * this initiator. 1529 */ 1530 } 1531take: 1532 free(port->wwpn_iid[iid].name, M_CTL); 1533 port->wwpn_iid[iid].name = name; 1534 port->wwpn_iid[iid].wwpn = wwpn; 1535 port->wwpn_iid[iid].in_use++; 1536 mtx_unlock(&softc->ctl_lock); 1537 1538 return (iid); 1539} 1540 1541static int 1542ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 1543{ 1544 int len; 1545 1546 switch (port->port_type) { 1547 case CTL_PORT_FC: 1548 { 1549 struct scsi_transportid_fcp *id = 1550 (struct scsi_transportid_fcp *)buf; 1551 if (port->wwpn_iid[iid].wwpn == 0) 1552 return (0); 1553 memset(id, 0, sizeof(*id)); 1554 id->format_protocol = SCSI_PROTO_FC; 1555 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 1556 return (sizeof(*id)); 1557 } 1558 case CTL_PORT_ISCSI: 1559 { 1560 struct scsi_transportid_iscsi_port *id = 1561 (struct scsi_transportid_iscsi_port *)buf; 1562 if (port->wwpn_iid[iid].name == NULL) 1563 return (0); 1564 memset(id, 0, 256); 1565 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 1566 SCSI_PROTO_ISCSI; 1567 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 1568 len = roundup2(min(len, 252), 4); 1569 scsi_ulto2b(len, id->additional_length); 1570 return (sizeof(*id) + len); 1571 } 1572 case CTL_PORT_SAS: 1573 { 1574 struct scsi_transportid_sas *id = 1575 (struct scsi_transportid_sas *)buf; 1576 if (port->wwpn_iid[iid].wwpn == 0) 1577 return (0); 1578 memset(id, 0, sizeof(*id)); 1579 id->format_protocol = SCSI_PROTO_SAS; 1580 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 1581 return (sizeof(*id)); 1582 } 1583 default: 1584 { 1585 struct scsi_transportid_spi *id = 1586 (struct scsi_transportid_spi *)buf; 1587 memset(id, 0, sizeof(*id)); 1588 id->format_protocol = SCSI_PROTO_SPI; 1589 scsi_ulto2b(iid, id->scsi_addr); 1590 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 1591 return (sizeof(*id)); 1592 } 1593 } 1594} 1595 1596static int 1597ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id) 1598{ 1599 return (0); 1600} 1601 1602static int 1603ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id) 1604{ 1605 return (0); 1606} 1607 1608/* 1609 * Data movement routine for the CTL ioctl frontend port. 1610 */ 1611static int 1612ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio) 1613{ 1614 struct ctl_sg_entry *ext_sglist, *kern_sglist; 1615 struct ctl_sg_entry ext_entry, kern_entry; 1616 int ext_sglen, ext_sg_entries, kern_sg_entries; 1617 int ext_sg_start, ext_offset; 1618 int len_to_copy, len_copied; 1619 int kern_watermark, ext_watermark; 1620 int ext_sglist_malloced; 1621 int i, j; 1622 1623 ext_sglist_malloced = 0; 1624 ext_sg_start = 0; 1625 ext_offset = 0; 1626 1627 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove\n")); 1628 1629 /* 1630 * If this flag is set, fake the data transfer. 1631 */ 1632 if (ctsio->io_hdr.flags & CTL_FLAG_NO_DATAMOVE) { 1633 ctsio->ext_data_filled = ctsio->ext_data_len; 1634 goto bailout; 1635 } 1636 1637 /* 1638 * To simplify things here, if we have a single buffer, stick it in 1639 * a S/G entry and just make it a single entry S/G list. 1640 */ 1641 if (ctsio->io_hdr.flags & CTL_FLAG_EDPTR_SGLIST) { 1642 int len_seen; 1643 1644 ext_sglen = ctsio->ext_sg_entries * sizeof(*ext_sglist); 1645 1646 ext_sglist = (struct ctl_sg_entry *)malloc(ext_sglen, M_CTL, 1647 M_WAITOK); 1648 ext_sglist_malloced = 1; 1649 if (copyin(ctsio->ext_data_ptr, ext_sglist, 1650 ext_sglen) != 0) { 1651 ctl_set_internal_failure(ctsio, 1652 /*sks_valid*/ 0, 1653 /*retry_count*/ 0); 1654 goto bailout; 1655 } 1656 ext_sg_entries = ctsio->ext_sg_entries; 1657 len_seen = 0; 1658 for (i = 0; i < ext_sg_entries; i++) { 1659 if ((len_seen + ext_sglist[i].len) >= 1660 ctsio->ext_data_filled) { 1661 ext_sg_start = i; 1662 ext_offset = ctsio->ext_data_filled - len_seen; 1663 break; 1664 } 1665 len_seen += ext_sglist[i].len; 1666 } 1667 } else { 1668 ext_sglist = &ext_entry; 1669 ext_sglist->addr = ctsio->ext_data_ptr; 1670 ext_sglist->len = ctsio->ext_data_len; 1671 ext_sg_entries = 1; 1672 ext_sg_start = 0; 1673 ext_offset = ctsio->ext_data_filled; 1674 } 1675 1676 if (ctsio->kern_sg_entries > 0) { 1677 kern_sglist = (struct ctl_sg_entry *)ctsio->kern_data_ptr; 1678 kern_sg_entries = ctsio->kern_sg_entries; 1679 } else { 1680 kern_sglist = &kern_entry; 1681 kern_sglist->addr = ctsio->kern_data_ptr; 1682 kern_sglist->len = ctsio->kern_data_len; 1683 kern_sg_entries = 1; 1684 } 1685 1686 1687 kern_watermark = 0; 1688 ext_watermark = ext_offset; 1689 len_copied = 0; 1690 for (i = ext_sg_start, j = 0; 1691 i < ext_sg_entries && j < kern_sg_entries;) { 1692 uint8_t *ext_ptr, *kern_ptr; 1693 1694 len_to_copy = ctl_min(ext_sglist[i].len - ext_watermark, 1695 kern_sglist[j].len - kern_watermark); 1696 1697 ext_ptr = (uint8_t *)ext_sglist[i].addr; 1698 ext_ptr = ext_ptr + ext_watermark; 1699 if (ctsio->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 1700 /* 1701 * XXX KDM fix this! 1702 */ 1703 panic("need to implement bus address support"); 1704#if 0 1705 kern_ptr = bus_to_virt(kern_sglist[j].addr); 1706#endif 1707 } else 1708 kern_ptr = (uint8_t *)kern_sglist[j].addr; 1709 kern_ptr = kern_ptr + kern_watermark; 1710 1711 kern_watermark += len_to_copy; 1712 ext_watermark += len_to_copy; 1713 1714 if ((ctsio->io_hdr.flags & CTL_FLAG_DATA_MASK) == 1715 CTL_FLAG_DATA_IN) { 1716 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1717 "bytes to user\n", len_to_copy)); 1718 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1719 "to %p\n", kern_ptr, ext_ptr)); 1720 if (copyout(kern_ptr, ext_ptr, len_to_copy) != 0) { 1721 ctl_set_internal_failure(ctsio, 1722 /*sks_valid*/ 0, 1723 /*retry_count*/ 0); 1724 goto bailout; 1725 } 1726 } else { 1727 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1728 "bytes from user\n", len_to_copy)); 1729 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1730 "to %p\n", ext_ptr, kern_ptr)); 1731 if (copyin(ext_ptr, kern_ptr, len_to_copy)!= 0){ 1732 ctl_set_internal_failure(ctsio, 1733 /*sks_valid*/ 0, 1734 /*retry_count*/0); 1735 goto bailout; 1736 } 1737 } 1738 1739 len_copied += len_to_copy; 1740 1741 if (ext_sglist[i].len == ext_watermark) { 1742 i++; 1743 ext_watermark = 0; 1744 } 1745 1746 if (kern_sglist[j].len == kern_watermark) { 1747 j++; 1748 kern_watermark = 0; 1749 } 1750 } 1751 1752 ctsio->ext_data_filled += len_copied; 1753 1754 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_sg_entries: %d, " 1755 "kern_sg_entries: %d\n", ext_sg_entries, 1756 kern_sg_entries)); 1757 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_data_len = %d, " 1758 "kern_data_len = %d\n", ctsio->ext_data_len, 1759 ctsio->kern_data_len)); 1760 1761 1762 /* XXX KDM set residual?? */ 1763bailout: 1764 1765 if (ext_sglist_malloced != 0) 1766 free(ext_sglist, M_CTL); 1767 1768 return (CTL_RETVAL_COMPLETE); 1769} 1770 1771/* 1772 * Serialize a command that went down the "wrong" side, and so was sent to 1773 * this controller for execution. The logic is a little different than the 1774 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 1775 * sent back to the other side, but in the success case, we execute the 1776 * command on this side (XFER mode) or tell the other side to execute it 1777 * (SER_ONLY mode). 1778 */ 1779static int 1780ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 1781{ 1782 struct ctl_softc *ctl_softc; 1783 union ctl_ha_msg msg_info; 1784 struct ctl_lun *lun; 1785 int retval = 0; 1786 uint32_t targ_lun; 1787 1788 ctl_softc = control_softc; 1789 1790 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 1791 lun = ctl_softc->ctl_luns[targ_lun]; 1792 if (lun==NULL) 1793 { 1794 /* 1795 * Why isn't LUN defined? The other side wouldn't 1796 * send a cmd if the LUN is undefined. 1797 */ 1798 printf("%s: Bad JUJU!, LUN is NULL!\n", __func__); 1799 1800 /* "Logical unit not supported" */ 1801 ctl_set_sense_data(&msg_info.scsi.sense_data, 1802 lun, 1803 /*sense_format*/SSD_TYPE_NONE, 1804 /*current_error*/ 1, 1805 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1806 /*asc*/ 0x25, 1807 /*ascq*/ 0x00, 1808 SSD_ELEM_NONE); 1809 1810 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1811 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1812 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1813 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1814 msg_info.hdr.serializing_sc = NULL; 1815 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1816 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1817 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1818 } 1819 return(1); 1820 1821 } 1822 1823 mtx_lock(&lun->lun_lock); 1824 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1825 1826 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 1827 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 1828 ooa_links))) { 1829 case CTL_ACTION_BLOCK: 1830 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 1831 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 1832 blocked_links); 1833 break; 1834 case CTL_ACTION_PASS: 1835 case CTL_ACTION_SKIP: 1836 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 1837 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 1838 ctl_enqueue_rtr((union ctl_io *)ctsio); 1839 } else { 1840 1841 /* send msg back to other side */ 1842 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1843 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 1844 msg_info.hdr.msg_type = CTL_MSG_R2R; 1845#if 0 1846 printf("2. pOrig %x\n", (int)msg_info.hdr.original_sc); 1847#endif 1848 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1849 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1850 } 1851 } 1852 break; 1853 case CTL_ACTION_OVERLAP: 1854 /* OVERLAPPED COMMANDS ATTEMPTED */ 1855 ctl_set_sense_data(&msg_info.scsi.sense_data, 1856 lun, 1857 /*sense_format*/SSD_TYPE_NONE, 1858 /*current_error*/ 1, 1859 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1860 /*asc*/ 0x4E, 1861 /*ascq*/ 0x00, 1862 SSD_ELEM_NONE); 1863 1864 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1865 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1866 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1867 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1868 msg_info.hdr.serializing_sc = NULL; 1869 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1870#if 0 1871 printf("BAD JUJU:Major Bummer Overlap\n"); 1872#endif 1873 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1874 retval = 1; 1875 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1876 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1877 } 1878 break; 1879 case CTL_ACTION_OVERLAP_TAG: 1880 /* TAGGED OVERLAPPED COMMANDS (NN = QUEUE TAG) */ 1881 ctl_set_sense_data(&msg_info.scsi.sense_data, 1882 lun, 1883 /*sense_format*/SSD_TYPE_NONE, 1884 /*current_error*/ 1, 1885 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1886 /*asc*/ 0x4D, 1887 /*ascq*/ ctsio->tag_num & 0xff, 1888 SSD_ELEM_NONE); 1889 1890 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1891 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1892 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1893 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1894 msg_info.hdr.serializing_sc = NULL; 1895 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1896#if 0 1897 printf("BAD JUJU:Major Bummer Overlap Tag\n"); 1898#endif 1899 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1900 retval = 1; 1901 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1902 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1903 } 1904 break; 1905 case CTL_ACTION_ERROR: 1906 default: 1907 /* "Internal target failure" */ 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_HARDWARE_ERROR, 1913 /*asc*/ 0x44, 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 HW Error\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 } 1933 mtx_unlock(&lun->lun_lock); 1934 return (retval); 1935} 1936 1937static int 1938ctl_ioctl_submit_wait(union ctl_io *io) 1939{ 1940 struct ctl_fe_ioctl_params params; 1941 ctl_fe_ioctl_state last_state; 1942 int done, retval; 1943 1944 retval = 0; 1945 1946 bzero(¶ms, sizeof(params)); 1947 1948 mtx_init(¶ms.ioctl_mtx, "ctliocmtx", NULL, MTX_DEF); 1949 cv_init(¶ms.sem, "ctlioccv"); 1950 params.state = CTL_IOCTL_INPROG; 1951 last_state = params.state; 1952 1953 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = ¶ms; 1954 1955 CTL_DEBUG_PRINT(("ctl_ioctl_submit_wait\n")); 1956 1957 /* This shouldn't happen */ 1958 if ((retval = ctl_queue(io)) != CTL_RETVAL_COMPLETE) 1959 return (retval); 1960 1961 done = 0; 1962 1963 do { 1964 mtx_lock(¶ms.ioctl_mtx); 1965 /* 1966 * Check the state here, and don't sleep if the state has 1967 * already changed (i.e. wakeup has already occured, but we 1968 * weren't waiting yet). 1969 */ 1970 if (params.state == last_state) { 1971 /* XXX KDM cv_wait_sig instead? */ 1972 cv_wait(¶ms.sem, ¶ms.ioctl_mtx); 1973 } 1974 last_state = params.state; 1975 1976 switch (params.state) { 1977 case CTL_IOCTL_INPROG: 1978 /* Why did we wake up? */ 1979 /* XXX KDM error here? */ 1980 mtx_unlock(¶ms.ioctl_mtx); 1981 break; 1982 case CTL_IOCTL_DATAMOVE: 1983 CTL_DEBUG_PRINT(("got CTL_IOCTL_DATAMOVE\n")); 1984 1985 /* 1986 * change last_state back to INPROG to avoid 1987 * deadlock on subsequent data moves. 1988 */ 1989 params.state = last_state = CTL_IOCTL_INPROG; 1990 1991 mtx_unlock(¶ms.ioctl_mtx); 1992 ctl_ioctl_do_datamove(&io->scsiio); 1993 /* 1994 * Note that in some cases, most notably writes, 1995 * this will queue the I/O and call us back later. 1996 * In other cases, generally reads, this routine 1997 * will immediately call back and wake us up, 1998 * probably using our own context. 1999 */ 2000 io->scsiio.be_move_done(io); 2001 break; 2002 case CTL_IOCTL_DONE: 2003 mtx_unlock(¶ms.ioctl_mtx); 2004 CTL_DEBUG_PRINT(("got CTL_IOCTL_DONE\n")); 2005 done = 1; 2006 break; 2007 default: 2008 mtx_unlock(¶ms.ioctl_mtx); 2009 /* XXX KDM error here? */ 2010 break; 2011 } 2012 } while (done == 0); 2013 2014 mtx_destroy(¶ms.ioctl_mtx); 2015 cv_destroy(¶ms.sem); 2016 2017 return (CTL_RETVAL_COMPLETE); 2018} 2019 2020static void 2021ctl_ioctl_datamove(union ctl_io *io) 2022{ 2023 struct ctl_fe_ioctl_params *params; 2024 2025 params = (struct ctl_fe_ioctl_params *) 2026 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 2027 2028 mtx_lock(¶ms->ioctl_mtx); 2029 params->state = CTL_IOCTL_DATAMOVE; 2030 cv_broadcast(¶ms->sem); 2031 mtx_unlock(¶ms->ioctl_mtx); 2032} 2033 2034static void 2035ctl_ioctl_done(union ctl_io *io) 2036{ 2037 struct ctl_fe_ioctl_params *params; 2038 2039 params = (struct ctl_fe_ioctl_params *) 2040 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 2041 2042 mtx_lock(¶ms->ioctl_mtx); 2043 params->state = CTL_IOCTL_DONE; 2044 cv_broadcast(¶ms->sem); 2045 mtx_unlock(¶ms->ioctl_mtx); 2046} 2047 2048static void 2049ctl_ioctl_hard_startstop_callback(void *arg, struct cfi_metatask *metatask) 2050{ 2051 struct ctl_fe_ioctl_startstop_info *sd_info; 2052 2053 sd_info = (struct ctl_fe_ioctl_startstop_info *)arg; 2054 2055 sd_info->hs_info.status = metatask->status; 2056 sd_info->hs_info.total_luns = metatask->taskinfo.startstop.total_luns; 2057 sd_info->hs_info.luns_complete = 2058 metatask->taskinfo.startstop.luns_complete; 2059 sd_info->hs_info.luns_failed = metatask->taskinfo.startstop.luns_failed; 2060 2061 cv_broadcast(&sd_info->sem); 2062} 2063 2064static void 2065ctl_ioctl_bbrread_callback(void *arg, struct cfi_metatask *metatask) 2066{ 2067 struct ctl_fe_ioctl_bbrread_info *fe_bbr_info; 2068 2069 fe_bbr_info = (struct ctl_fe_ioctl_bbrread_info *)arg; 2070 2071 mtx_lock(fe_bbr_info->lock); 2072 fe_bbr_info->bbr_info->status = metatask->status; 2073 fe_bbr_info->bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2074 fe_bbr_info->wakeup_done = 1; 2075 mtx_unlock(fe_bbr_info->lock); 2076 2077 cv_broadcast(&fe_bbr_info->sem); 2078} 2079 2080/* 2081 * Returns 0 for success, errno for failure. 2082 */ 2083static int 2084ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2085 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2086{ 2087 union ctl_io *io; 2088 int retval; 2089 2090 retval = 0; 2091 2092 mtx_lock(&lun->lun_lock); 2093 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2094 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2095 ooa_links)) { 2096 struct ctl_ooa_entry *entry; 2097 2098 /* 2099 * If we've got more than we can fit, just count the 2100 * remaining entries. 2101 */ 2102 if (*cur_fill_num >= ooa_hdr->alloc_num) 2103 continue; 2104 2105 entry = &kern_entries[*cur_fill_num]; 2106 2107 entry->tag_num = io->scsiio.tag_num; 2108 entry->lun_num = lun->lun; 2109#ifdef CTL_TIME_IO 2110 entry->start_bt = io->io_hdr.start_bt; 2111#endif 2112 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2113 entry->cdb_len = io->scsiio.cdb_len; 2114 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2115 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2116 2117 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2118 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2119 2120 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2121 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2122 2123 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2124 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2125 2126 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2127 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2128 } 2129 mtx_unlock(&lun->lun_lock); 2130 2131 return (retval); 2132} 2133 2134static void * 2135ctl_copyin_alloc(void *user_addr, int len, char *error_str, 2136 size_t error_str_len) 2137{ 2138 void *kptr; 2139 2140 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2141 2142 if (copyin(user_addr, kptr, len) != 0) { 2143 snprintf(error_str, error_str_len, "Error copying %d bytes " 2144 "from user address %p to kernel address %p", len, 2145 user_addr, kptr); 2146 free(kptr, M_CTL); 2147 return (NULL); 2148 } 2149 2150 return (kptr); 2151} 2152 2153static void 2154ctl_free_args(int num_args, struct ctl_be_arg *args) 2155{ 2156 int i; 2157 2158 if (args == NULL) 2159 return; 2160 2161 for (i = 0; i < num_args; i++) { 2162 free(args[i].kname, M_CTL); 2163 free(args[i].kvalue, M_CTL); 2164 } 2165 2166 free(args, M_CTL); 2167} 2168 2169static struct ctl_be_arg * 2170ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2171 char *error_str, size_t error_str_len) 2172{ 2173 struct ctl_be_arg *args; 2174 int i; 2175 2176 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2177 error_str, error_str_len); 2178 2179 if (args == NULL) 2180 goto bailout; 2181 2182 for (i = 0; i < num_args; i++) { 2183 args[i].kname = NULL; 2184 args[i].kvalue = NULL; 2185 } 2186 2187 for (i = 0; i < num_args; i++) { 2188 uint8_t *tmpptr; 2189 2190 args[i].kname = ctl_copyin_alloc(args[i].name, 2191 args[i].namelen, error_str, error_str_len); 2192 if (args[i].kname == NULL) 2193 goto bailout; 2194 2195 if (args[i].kname[args[i].namelen - 1] != '\0') { 2196 snprintf(error_str, error_str_len, "Argument %d " 2197 "name is not NUL-terminated", i); 2198 goto bailout; 2199 } 2200 2201 if (args[i].flags & CTL_BEARG_RD) { 2202 tmpptr = ctl_copyin_alloc(args[i].value, 2203 args[i].vallen, error_str, error_str_len); 2204 if (tmpptr == NULL) 2205 goto bailout; 2206 if ((args[i].flags & CTL_BEARG_ASCII) 2207 && (tmpptr[args[i].vallen - 1] != '\0')) { 2208 snprintf(error_str, error_str_len, "Argument " 2209 "%d value is not NUL-terminated", i); 2210 goto bailout; 2211 } 2212 args[i].kvalue = tmpptr; 2213 } else { 2214 args[i].kvalue = malloc(args[i].vallen, 2215 M_CTL, M_WAITOK | M_ZERO); 2216 } 2217 } 2218 2219 return (args); 2220bailout: 2221 2222 ctl_free_args(num_args, args); 2223 2224 return (NULL); 2225} 2226 2227static void 2228ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2229{ 2230 int i; 2231 2232 for (i = 0; i < num_args; i++) { 2233 if (args[i].flags & CTL_BEARG_WR) 2234 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2235 } 2236} 2237 2238/* 2239 * Escape characters that are illegal or not recommended in XML. 2240 */ 2241int 2242ctl_sbuf_printf_esc(struct sbuf *sb, char *str, int size) 2243{ 2244 char *end = str + size; 2245 int retval; 2246 2247 retval = 0; 2248 2249 for (; *str && str < end; str++) { 2250 switch (*str) { 2251 case '&': 2252 retval = sbuf_printf(sb, "&"); 2253 break; 2254 case '>': 2255 retval = sbuf_printf(sb, ">"); 2256 break; 2257 case '<': 2258 retval = sbuf_printf(sb, "<"); 2259 break; 2260 default: 2261 retval = sbuf_putc(sb, *str); 2262 break; 2263 } 2264 2265 if (retval != 0) 2266 break; 2267 2268 } 2269 2270 return (retval); 2271} 2272 2273static void 2274ctl_id_sbuf(struct ctl_devid *id, struct sbuf *sb) 2275{ 2276 struct scsi_vpd_id_descriptor *desc; 2277 int i; 2278 2279 if (id == NULL || id->len < 4) 2280 return; 2281 desc = (struct scsi_vpd_id_descriptor *)id->data; 2282 switch (desc->id_type & SVPD_ID_TYPE_MASK) { 2283 case SVPD_ID_TYPE_T10: 2284 sbuf_printf(sb, "t10."); 2285 break; 2286 case SVPD_ID_TYPE_EUI64: 2287 sbuf_printf(sb, "eui."); 2288 break; 2289 case SVPD_ID_TYPE_NAA: 2290 sbuf_printf(sb, "naa."); 2291 break; 2292 case SVPD_ID_TYPE_SCSI_NAME: 2293 break; 2294 } 2295 switch (desc->proto_codeset & SVPD_ID_CODESET_MASK) { 2296 case SVPD_ID_CODESET_BINARY: 2297 for (i = 0; i < desc->length; i++) 2298 sbuf_printf(sb, "%02x", desc->identifier[i]); 2299 break; 2300 case SVPD_ID_CODESET_ASCII: 2301 sbuf_printf(sb, "%.*s", (int)desc->length, 2302 (char *)desc->identifier); 2303 break; 2304 case SVPD_ID_CODESET_UTF8: 2305 sbuf_printf(sb, "%s", (char *)desc->identifier); 2306 break; 2307 } 2308} 2309 2310static int 2311ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2312 struct thread *td) 2313{ 2314 struct ctl_softc *softc; 2315 int retval; 2316 2317 softc = control_softc; 2318 2319 retval = 0; 2320 2321 switch (cmd) { 2322 case CTL_IO: { 2323 union ctl_io *io; 2324 void *pool_tmp; 2325 2326 /* 2327 * If we haven't been "enabled", don't allow any SCSI I/O 2328 * to this FETD. 2329 */ 2330 if ((softc->ioctl_info.flags & CTL_IOCTL_FLAG_ENABLED) == 0) { 2331 retval = EPERM; 2332 break; 2333 } 2334 2335 io = ctl_alloc_io(softc->ioctl_info.port.ctl_pool_ref); 2336 2337 /* 2338 * Need to save the pool reference so it doesn't get 2339 * spammed by the user's ctl_io. 2340 */ 2341 pool_tmp = io->io_hdr.pool; 2342 memcpy(io, (void *)addr, sizeof(*io)); 2343 io->io_hdr.pool = pool_tmp; 2344 2345 /* 2346 * No status yet, so make sure the status is set properly. 2347 */ 2348 io->io_hdr.status = CTL_STATUS_NONE; 2349 2350 /* 2351 * The user sets the initiator ID, target and LUN IDs. 2352 */ 2353 io->io_hdr.nexus.targ_port = softc->ioctl_info.port.targ_port; 2354 io->io_hdr.flags |= CTL_FLAG_USER_REQ; 2355 if ((io->io_hdr.io_type == CTL_IO_SCSI) 2356 && (io->scsiio.tag_type != CTL_TAG_UNTAGGED)) 2357 io->scsiio.tag_num = softc->ioctl_info.cur_tag_num++; 2358 2359 retval = ctl_ioctl_submit_wait(io); 2360 2361 if (retval != 0) { 2362 ctl_free_io(io); 2363 break; 2364 } 2365 2366 memcpy((void *)addr, io, sizeof(*io)); 2367 2368 /* return this to our pool */ 2369 ctl_free_io(io); 2370 2371 break; 2372 } 2373 case CTL_ENABLE_PORT: 2374 case CTL_DISABLE_PORT: 2375 case CTL_SET_PORT_WWNS: { 2376 struct ctl_port *port; 2377 struct ctl_port_entry *entry; 2378 2379 entry = (struct ctl_port_entry *)addr; 2380 2381 mtx_lock(&softc->ctl_lock); 2382 STAILQ_FOREACH(port, &softc->port_list, links) { 2383 int action, done; 2384 2385 action = 0; 2386 done = 0; 2387 2388 if ((entry->port_type == CTL_PORT_NONE) 2389 && (entry->targ_port == port->targ_port)) { 2390 /* 2391 * If the user only wants to enable or 2392 * disable or set WWNs on a specific port, 2393 * do the operation and we're done. 2394 */ 2395 action = 1; 2396 done = 1; 2397 } else if (entry->port_type & port->port_type) { 2398 /* 2399 * Compare the user's type mask with the 2400 * particular frontend type to see if we 2401 * have a match. 2402 */ 2403 action = 1; 2404 done = 0; 2405 2406 /* 2407 * Make sure the user isn't trying to set 2408 * WWNs on multiple ports at the same time. 2409 */ 2410 if (cmd == CTL_SET_PORT_WWNS) { 2411 printf("%s: Can't set WWNs on " 2412 "multiple ports\n", __func__); 2413 retval = EINVAL; 2414 break; 2415 } 2416 } 2417 if (action != 0) { 2418 /* 2419 * XXX KDM we have to drop the lock here, 2420 * because the online/offline operations 2421 * can potentially block. We need to 2422 * reference count the frontends so they 2423 * can't go away, 2424 */ 2425 mtx_unlock(&softc->ctl_lock); 2426 2427 if (cmd == CTL_ENABLE_PORT) { 2428 struct ctl_lun *lun; 2429 2430 STAILQ_FOREACH(lun, &softc->lun_list, 2431 links) { 2432 port->lun_enable(port->targ_lun_arg, 2433 lun->target, 2434 lun->lun); 2435 } 2436 2437 ctl_port_online(port); 2438 } else if (cmd == CTL_DISABLE_PORT) { 2439 struct ctl_lun *lun; 2440 2441 ctl_port_offline(port); 2442 2443 STAILQ_FOREACH(lun, &softc->lun_list, 2444 links) { 2445 port->lun_disable( 2446 port->targ_lun_arg, 2447 lun->target, 2448 lun->lun); 2449 } 2450 } 2451 2452 mtx_lock(&softc->ctl_lock); 2453 2454 if (cmd == CTL_SET_PORT_WWNS) 2455 ctl_port_set_wwns(port, 2456 (entry->flags & CTL_PORT_WWNN_VALID) ? 2457 1 : 0, entry->wwnn, 2458 (entry->flags & CTL_PORT_WWPN_VALID) ? 2459 1 : 0, entry->wwpn); 2460 } 2461 if (done != 0) 2462 break; 2463 } 2464 mtx_unlock(&softc->ctl_lock); 2465 break; 2466 } 2467 case CTL_GET_PORT_LIST: { 2468 struct ctl_port *port; 2469 struct ctl_port_list *list; 2470 int i; 2471 2472 list = (struct ctl_port_list *)addr; 2473 2474 if (list->alloc_len != (list->alloc_num * 2475 sizeof(struct ctl_port_entry))) { 2476 printf("%s: CTL_GET_PORT_LIST: alloc_len %u != " 2477 "alloc_num %u * sizeof(struct ctl_port_entry) " 2478 "%zu\n", __func__, list->alloc_len, 2479 list->alloc_num, sizeof(struct ctl_port_entry)); 2480 retval = EINVAL; 2481 break; 2482 } 2483 list->fill_len = 0; 2484 list->fill_num = 0; 2485 list->dropped_num = 0; 2486 i = 0; 2487 mtx_lock(&softc->ctl_lock); 2488 STAILQ_FOREACH(port, &softc->port_list, links) { 2489 struct ctl_port_entry entry, *list_entry; 2490 2491 if (list->fill_num >= list->alloc_num) { 2492 list->dropped_num++; 2493 continue; 2494 } 2495 2496 entry.port_type = port->port_type; 2497 strlcpy(entry.port_name, port->port_name, 2498 sizeof(entry.port_name)); 2499 entry.targ_port = port->targ_port; 2500 entry.physical_port = port->physical_port; 2501 entry.virtual_port = port->virtual_port; 2502 entry.wwnn = port->wwnn; 2503 entry.wwpn = port->wwpn; 2504 if (port->status & CTL_PORT_STATUS_ONLINE) 2505 entry.online = 1; 2506 else 2507 entry.online = 0; 2508 2509 list_entry = &list->entries[i]; 2510 2511 retval = copyout(&entry, list_entry, sizeof(entry)); 2512 if (retval != 0) { 2513 printf("%s: CTL_GET_PORT_LIST: copyout " 2514 "returned %d\n", __func__, retval); 2515 break; 2516 } 2517 i++; 2518 list->fill_num++; 2519 list->fill_len += sizeof(entry); 2520 } 2521 mtx_unlock(&softc->ctl_lock); 2522 2523 /* 2524 * If this is non-zero, we had a copyout fault, so there's 2525 * probably no point in attempting to set the status inside 2526 * the structure. 2527 */ 2528 if (retval != 0) 2529 break; 2530 2531 if (list->dropped_num > 0) 2532 list->status = CTL_PORT_LIST_NEED_MORE_SPACE; 2533 else 2534 list->status = CTL_PORT_LIST_OK; 2535 break; 2536 } 2537 case CTL_DUMP_OOA: { 2538 struct ctl_lun *lun; 2539 union ctl_io *io; 2540 char printbuf[128]; 2541 struct sbuf sb; 2542 2543 mtx_lock(&softc->ctl_lock); 2544 printf("Dumping OOA queues:\n"); 2545 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2546 mtx_lock(&lun->lun_lock); 2547 for (io = (union ctl_io *)TAILQ_FIRST( 2548 &lun->ooa_queue); io != NULL; 2549 io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2550 ooa_links)) { 2551 sbuf_new(&sb, printbuf, sizeof(printbuf), 2552 SBUF_FIXEDLEN); 2553 sbuf_printf(&sb, "LUN %jd tag 0x%04x%s%s%s%s: ", 2554 (intmax_t)lun->lun, 2555 io->scsiio.tag_num, 2556 (io->io_hdr.flags & 2557 CTL_FLAG_BLOCKED) ? "" : " BLOCKED", 2558 (io->io_hdr.flags & 2559 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 2560 (io->io_hdr.flags & 2561 CTL_FLAG_ABORT) ? " ABORT" : "", 2562 (io->io_hdr.flags & 2563 CTL_FLAG_IS_WAS_ON_RTR) ? " RTR" : ""); 2564 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 2565 sbuf_finish(&sb); 2566 printf("%s\n", sbuf_data(&sb)); 2567 } 2568 mtx_unlock(&lun->lun_lock); 2569 } 2570 printf("OOA queues dump done\n"); 2571 mtx_unlock(&softc->ctl_lock); 2572 break; 2573 } 2574 case CTL_GET_OOA: { 2575 struct ctl_lun *lun; 2576 struct ctl_ooa *ooa_hdr; 2577 struct ctl_ooa_entry *entries; 2578 uint32_t cur_fill_num; 2579 2580 ooa_hdr = (struct ctl_ooa *)addr; 2581 2582 if ((ooa_hdr->alloc_len == 0) 2583 || (ooa_hdr->alloc_num == 0)) { 2584 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2585 "must be non-zero\n", __func__, 2586 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2587 retval = EINVAL; 2588 break; 2589 } 2590 2591 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2592 sizeof(struct ctl_ooa_entry))) { 2593 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2594 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2595 __func__, ooa_hdr->alloc_len, 2596 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2597 retval = EINVAL; 2598 break; 2599 } 2600 2601 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2602 if (entries == NULL) { 2603 printf("%s: could not allocate %d bytes for OOA " 2604 "dump\n", __func__, ooa_hdr->alloc_len); 2605 retval = ENOMEM; 2606 break; 2607 } 2608 2609 mtx_lock(&softc->ctl_lock); 2610 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2611 && ((ooa_hdr->lun_num >= CTL_MAX_LUNS) 2612 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2613 mtx_unlock(&softc->ctl_lock); 2614 free(entries, M_CTL); 2615 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2616 __func__, (uintmax_t)ooa_hdr->lun_num); 2617 retval = EINVAL; 2618 break; 2619 } 2620 2621 cur_fill_num = 0; 2622 2623 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2624 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2625 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2626 ooa_hdr, entries); 2627 if (retval != 0) 2628 break; 2629 } 2630 if (retval != 0) { 2631 mtx_unlock(&softc->ctl_lock); 2632 free(entries, M_CTL); 2633 break; 2634 } 2635 } else { 2636 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2637 2638 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num,ooa_hdr, 2639 entries); 2640 } 2641 mtx_unlock(&softc->ctl_lock); 2642 2643 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2644 ooa_hdr->fill_len = ooa_hdr->fill_num * 2645 sizeof(struct ctl_ooa_entry); 2646 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2647 if (retval != 0) { 2648 printf("%s: error copying out %d bytes for OOA dump\n", 2649 __func__, ooa_hdr->fill_len); 2650 } 2651 2652 getbintime(&ooa_hdr->cur_bt); 2653 2654 if (cur_fill_num > ooa_hdr->alloc_num) { 2655 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2656 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2657 } else { 2658 ooa_hdr->dropped_num = 0; 2659 ooa_hdr->status = CTL_OOA_OK; 2660 } 2661 2662 free(entries, M_CTL); 2663 break; 2664 } 2665 case CTL_CHECK_OOA: { 2666 union ctl_io *io; 2667 struct ctl_lun *lun; 2668 struct ctl_ooa_info *ooa_info; 2669 2670 2671 ooa_info = (struct ctl_ooa_info *)addr; 2672 2673 if (ooa_info->lun_id >= CTL_MAX_LUNS) { 2674 ooa_info->status = CTL_OOA_INVALID_LUN; 2675 break; 2676 } 2677 mtx_lock(&softc->ctl_lock); 2678 lun = softc->ctl_luns[ooa_info->lun_id]; 2679 if (lun == NULL) { 2680 mtx_unlock(&softc->ctl_lock); 2681 ooa_info->status = CTL_OOA_INVALID_LUN; 2682 break; 2683 } 2684 mtx_lock(&lun->lun_lock); 2685 mtx_unlock(&softc->ctl_lock); 2686 ooa_info->num_entries = 0; 2687 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 2688 io != NULL; io = (union ctl_io *)TAILQ_NEXT( 2689 &io->io_hdr, ooa_links)) { 2690 ooa_info->num_entries++; 2691 } 2692 mtx_unlock(&lun->lun_lock); 2693 2694 ooa_info->status = CTL_OOA_SUCCESS; 2695 2696 break; 2697 } 2698 case CTL_HARD_START: 2699 case CTL_HARD_STOP: { 2700 struct ctl_fe_ioctl_startstop_info ss_info; 2701 struct cfi_metatask *metatask; 2702 struct mtx hs_mtx; 2703 2704 mtx_init(&hs_mtx, "HS Mutex", NULL, MTX_DEF); 2705 2706 cv_init(&ss_info.sem, "hard start/stop cv" ); 2707 2708 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2709 if (metatask == NULL) { 2710 retval = ENOMEM; 2711 mtx_destroy(&hs_mtx); 2712 break; 2713 } 2714 2715 if (cmd == CTL_HARD_START) 2716 metatask->tasktype = CFI_TASK_STARTUP; 2717 else 2718 metatask->tasktype = CFI_TASK_SHUTDOWN; 2719 2720 metatask->callback = ctl_ioctl_hard_startstop_callback; 2721 metatask->callback_arg = &ss_info; 2722 2723 cfi_action(metatask); 2724 2725 /* Wait for the callback */ 2726 mtx_lock(&hs_mtx); 2727 cv_wait_sig(&ss_info.sem, &hs_mtx); 2728 mtx_unlock(&hs_mtx); 2729 2730 /* 2731 * All information has been copied from the metatask by the 2732 * time cv_broadcast() is called, so we free the metatask here. 2733 */ 2734 cfi_free_metatask(metatask); 2735 2736 memcpy((void *)addr, &ss_info.hs_info, sizeof(ss_info.hs_info)); 2737 2738 mtx_destroy(&hs_mtx); 2739 break; 2740 } 2741 case CTL_BBRREAD: { 2742 struct ctl_bbrread_info *bbr_info; 2743 struct ctl_fe_ioctl_bbrread_info fe_bbr_info; 2744 struct mtx bbr_mtx; 2745 struct cfi_metatask *metatask; 2746 2747 bbr_info = (struct ctl_bbrread_info *)addr; 2748 2749 bzero(&fe_bbr_info, sizeof(fe_bbr_info)); 2750 2751 bzero(&bbr_mtx, sizeof(bbr_mtx)); 2752 mtx_init(&bbr_mtx, "BBR Mutex", NULL, MTX_DEF); 2753 2754 fe_bbr_info.bbr_info = bbr_info; 2755 fe_bbr_info.lock = &bbr_mtx; 2756 2757 cv_init(&fe_bbr_info.sem, "BBR read cv"); 2758 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2759 2760 if (metatask == NULL) { 2761 mtx_destroy(&bbr_mtx); 2762 cv_destroy(&fe_bbr_info.sem); 2763 retval = ENOMEM; 2764 break; 2765 } 2766 metatask->tasktype = CFI_TASK_BBRREAD; 2767 metatask->callback = ctl_ioctl_bbrread_callback; 2768 metatask->callback_arg = &fe_bbr_info; 2769 metatask->taskinfo.bbrread.lun_num = bbr_info->lun_num; 2770 metatask->taskinfo.bbrread.lba = bbr_info->lba; 2771 metatask->taskinfo.bbrread.len = bbr_info->len; 2772 2773 cfi_action(metatask); 2774 2775 mtx_lock(&bbr_mtx); 2776 while (fe_bbr_info.wakeup_done == 0) 2777 cv_wait_sig(&fe_bbr_info.sem, &bbr_mtx); 2778 mtx_unlock(&bbr_mtx); 2779 2780 bbr_info->status = metatask->status; 2781 bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2782 bbr_info->scsi_status = metatask->taskinfo.bbrread.scsi_status; 2783 memcpy(&bbr_info->sense_data, 2784 &metatask->taskinfo.bbrread.sense_data, 2785 ctl_min(sizeof(bbr_info->sense_data), 2786 sizeof(metatask->taskinfo.bbrread.sense_data))); 2787 2788 cfi_free_metatask(metatask); 2789 2790 mtx_destroy(&bbr_mtx); 2791 cv_destroy(&fe_bbr_info.sem); 2792 2793 break; 2794 } 2795 case CTL_DELAY_IO: { 2796 struct ctl_io_delay_info *delay_info; 2797#ifdef CTL_IO_DELAY 2798 struct ctl_lun *lun; 2799#endif /* CTL_IO_DELAY */ 2800 2801 delay_info = (struct ctl_io_delay_info *)addr; 2802 2803#ifdef CTL_IO_DELAY 2804 mtx_lock(&softc->ctl_lock); 2805 2806 if ((delay_info->lun_id >= CTL_MAX_LUNS) 2807 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2808 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2809 } else { 2810 lun = softc->ctl_luns[delay_info->lun_id]; 2811 mtx_lock(&lun->lun_lock); 2812 2813 delay_info->status = CTL_DELAY_STATUS_OK; 2814 2815 switch (delay_info->delay_type) { 2816 case CTL_DELAY_TYPE_CONT: 2817 break; 2818 case CTL_DELAY_TYPE_ONESHOT: 2819 break; 2820 default: 2821 delay_info->status = 2822 CTL_DELAY_STATUS_INVALID_TYPE; 2823 break; 2824 } 2825 2826 switch (delay_info->delay_loc) { 2827 case CTL_DELAY_LOC_DATAMOVE: 2828 lun->delay_info.datamove_type = 2829 delay_info->delay_type; 2830 lun->delay_info.datamove_delay = 2831 delay_info->delay_secs; 2832 break; 2833 case CTL_DELAY_LOC_DONE: 2834 lun->delay_info.done_type = 2835 delay_info->delay_type; 2836 lun->delay_info.done_delay = 2837 delay_info->delay_secs; 2838 break; 2839 default: 2840 delay_info->status = 2841 CTL_DELAY_STATUS_INVALID_LOC; 2842 break; 2843 } 2844 mtx_unlock(&lun->lun_lock); 2845 } 2846 2847 mtx_unlock(&softc->ctl_lock); 2848#else 2849 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2850#endif /* CTL_IO_DELAY */ 2851 break; 2852 } 2853 case CTL_REALSYNC_SET: { 2854 int *syncstate; 2855 2856 syncstate = (int *)addr; 2857 2858 mtx_lock(&softc->ctl_lock); 2859 switch (*syncstate) { 2860 case 0: 2861 softc->flags &= ~CTL_FLAG_REAL_SYNC; 2862 break; 2863 case 1: 2864 softc->flags |= CTL_FLAG_REAL_SYNC; 2865 break; 2866 default: 2867 retval = EINVAL; 2868 break; 2869 } 2870 mtx_unlock(&softc->ctl_lock); 2871 break; 2872 } 2873 case CTL_REALSYNC_GET: { 2874 int *syncstate; 2875 2876 syncstate = (int*)addr; 2877 2878 mtx_lock(&softc->ctl_lock); 2879 if (softc->flags & CTL_FLAG_REAL_SYNC) 2880 *syncstate = 1; 2881 else 2882 *syncstate = 0; 2883 mtx_unlock(&softc->ctl_lock); 2884 2885 break; 2886 } 2887 case CTL_SETSYNC: 2888 case CTL_GETSYNC: { 2889 struct ctl_sync_info *sync_info; 2890 struct ctl_lun *lun; 2891 2892 sync_info = (struct ctl_sync_info *)addr; 2893 2894 mtx_lock(&softc->ctl_lock); 2895 lun = softc->ctl_luns[sync_info->lun_id]; 2896 if (lun == NULL) { 2897 mtx_unlock(&softc->ctl_lock); 2898 sync_info->status = CTL_GS_SYNC_NO_LUN; 2899 } 2900 /* 2901 * Get or set the sync interval. We're not bounds checking 2902 * in the set case, hopefully the user won't do something 2903 * silly. 2904 */ 2905 mtx_lock(&lun->lun_lock); 2906 mtx_unlock(&softc->ctl_lock); 2907 if (cmd == CTL_GETSYNC) 2908 sync_info->sync_interval = lun->sync_interval; 2909 else 2910 lun->sync_interval = sync_info->sync_interval; 2911 mtx_unlock(&lun->lun_lock); 2912 2913 sync_info->status = CTL_GS_SYNC_OK; 2914 2915 break; 2916 } 2917 case CTL_GETSTATS: { 2918 struct ctl_stats *stats; 2919 struct ctl_lun *lun; 2920 int i; 2921 2922 stats = (struct ctl_stats *)addr; 2923 2924 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2925 stats->alloc_len) { 2926 stats->status = CTL_SS_NEED_MORE_SPACE; 2927 stats->num_luns = softc->num_luns; 2928 break; 2929 } 2930 /* 2931 * XXX KDM no locking here. If the LUN list changes, 2932 * things can blow up. 2933 */ 2934 for (i = 0, lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; 2935 i++, lun = STAILQ_NEXT(lun, links)) { 2936 retval = copyout(&lun->stats, &stats->lun_stats[i], 2937 sizeof(lun->stats)); 2938 if (retval != 0) 2939 break; 2940 } 2941 stats->num_luns = softc->num_luns; 2942 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2943 softc->num_luns; 2944 stats->status = CTL_SS_OK; 2945#ifdef CTL_TIME_IO 2946 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2947#else 2948 stats->flags = CTL_STATS_FLAG_NONE; 2949#endif 2950 getnanouptime(&stats->timestamp); 2951 break; 2952 } 2953 case CTL_ERROR_INJECT: { 2954 struct ctl_error_desc *err_desc, *new_err_desc; 2955 struct ctl_lun *lun; 2956 2957 err_desc = (struct ctl_error_desc *)addr; 2958 2959 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2960 M_WAITOK | M_ZERO); 2961 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2962 2963 mtx_lock(&softc->ctl_lock); 2964 lun = softc->ctl_luns[err_desc->lun_id]; 2965 if (lun == NULL) { 2966 mtx_unlock(&softc->ctl_lock); 2967 free(new_err_desc, M_CTL); 2968 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2969 __func__, (uintmax_t)err_desc->lun_id); 2970 retval = EINVAL; 2971 break; 2972 } 2973 mtx_lock(&lun->lun_lock); 2974 mtx_unlock(&softc->ctl_lock); 2975 2976 /* 2977 * We could do some checking here to verify the validity 2978 * of the request, but given the complexity of error 2979 * injection requests, the checking logic would be fairly 2980 * complex. 2981 * 2982 * For now, if the request is invalid, it just won't get 2983 * executed and might get deleted. 2984 */ 2985 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2986 2987 /* 2988 * XXX KDM check to make sure the serial number is unique, 2989 * in case we somehow manage to wrap. That shouldn't 2990 * happen for a very long time, but it's the right thing to 2991 * do. 2992 */ 2993 new_err_desc->serial = lun->error_serial; 2994 err_desc->serial = lun->error_serial; 2995 lun->error_serial++; 2996 2997 mtx_unlock(&lun->lun_lock); 2998 break; 2999 } 3000 case CTL_ERROR_INJECT_DELETE: { 3001 struct ctl_error_desc *delete_desc, *desc, *desc2; 3002 struct ctl_lun *lun; 3003 int delete_done; 3004 3005 delete_desc = (struct ctl_error_desc *)addr; 3006 delete_done = 0; 3007 3008 mtx_lock(&softc->ctl_lock); 3009 lun = softc->ctl_luns[delete_desc->lun_id]; 3010 if (lun == NULL) { 3011 mtx_unlock(&softc->ctl_lock); 3012 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 3013 __func__, (uintmax_t)delete_desc->lun_id); 3014 retval = EINVAL; 3015 break; 3016 } 3017 mtx_lock(&lun->lun_lock); 3018 mtx_unlock(&softc->ctl_lock); 3019 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 3020 if (desc->serial != delete_desc->serial) 3021 continue; 3022 3023 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 3024 links); 3025 free(desc, M_CTL); 3026 delete_done = 1; 3027 } 3028 mtx_unlock(&lun->lun_lock); 3029 if (delete_done == 0) { 3030 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 3031 "error serial %ju on LUN %u\n", __func__, 3032 delete_desc->serial, delete_desc->lun_id); 3033 retval = EINVAL; 3034 break; 3035 } 3036 break; 3037 } 3038 case CTL_DUMP_STRUCTS: { 3039 int i, j, k; 3040 struct ctl_port *port; 3041 struct ctl_frontend *fe; 3042 3043 mtx_lock(&softc->ctl_lock); 3044 printf("CTL Persistent Reservation information start:\n"); 3045 for (i = 0; i < CTL_MAX_LUNS; i++) { 3046 struct ctl_lun *lun; 3047 3048 lun = softc->ctl_luns[i]; 3049 3050 if ((lun == NULL) 3051 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 3052 continue; 3053 3054 for (j = 0; j < (CTL_MAX_PORTS * 2); j++) { 3055 if (lun->pr_keys[j] == NULL) 3056 continue; 3057 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 3058 if (lun->pr_keys[j][k] == 0) 3059 continue; 3060 printf(" LUN %d port %d iid %d key " 3061 "%#jx\n", i, j, k, 3062 (uintmax_t)lun->pr_keys[j][k]); 3063 } 3064 } 3065 } 3066 printf("CTL Persistent Reservation information end\n"); 3067 printf("CTL Ports:\n"); 3068 STAILQ_FOREACH(port, &softc->port_list, links) { 3069 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 3070 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 3071 port->frontend->name, port->port_type, 3072 port->physical_port, port->virtual_port, 3073 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 3074 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3075 if (port->wwpn_iid[j].in_use == 0 && 3076 port->wwpn_iid[j].wwpn == 0 && 3077 port->wwpn_iid[j].name == NULL) 3078 continue; 3079 3080 printf(" iid %u use %d WWPN %#jx '%s'\n", 3081 j, port->wwpn_iid[j].in_use, 3082 (uintmax_t)port->wwpn_iid[j].wwpn, 3083 port->wwpn_iid[j].name); 3084 } 3085 } 3086 printf("CTL Port information end\n"); 3087 mtx_unlock(&softc->ctl_lock); 3088 /* 3089 * XXX KDM calling this without a lock. We'd likely want 3090 * to drop the lock before calling the frontend's dump 3091 * routine anyway. 3092 */ 3093 printf("CTL Frontends:\n"); 3094 STAILQ_FOREACH(fe, &softc->fe_list, links) { 3095 printf(" Frontend '%s'\n", fe->name); 3096 if (fe->fe_dump != NULL) 3097 fe->fe_dump(); 3098 } 3099 printf("CTL Frontend information end\n"); 3100 break; 3101 } 3102 case CTL_LUN_REQ: { 3103 struct ctl_lun_req *lun_req; 3104 struct ctl_backend_driver *backend; 3105 3106 lun_req = (struct ctl_lun_req *)addr; 3107 3108 backend = ctl_backend_find(lun_req->backend); 3109 if (backend == NULL) { 3110 lun_req->status = CTL_LUN_ERROR; 3111 snprintf(lun_req->error_str, 3112 sizeof(lun_req->error_str), 3113 "Backend \"%s\" not found.", 3114 lun_req->backend); 3115 break; 3116 } 3117 if (lun_req->num_be_args > 0) { 3118 lun_req->kern_be_args = ctl_copyin_args( 3119 lun_req->num_be_args, 3120 lun_req->be_args, 3121 lun_req->error_str, 3122 sizeof(lun_req->error_str)); 3123 if (lun_req->kern_be_args == NULL) { 3124 lun_req->status = CTL_LUN_ERROR; 3125 break; 3126 } 3127 } 3128 3129 retval = backend->ioctl(dev, cmd, addr, flag, td); 3130 3131 if (lun_req->num_be_args > 0) { 3132 ctl_copyout_args(lun_req->num_be_args, 3133 lun_req->kern_be_args); 3134 ctl_free_args(lun_req->num_be_args, 3135 lun_req->kern_be_args); 3136 } 3137 break; 3138 } 3139 case CTL_LUN_LIST: { 3140 struct sbuf *sb; 3141 struct ctl_lun *lun; 3142 struct ctl_lun_list *list; 3143 struct ctl_option *opt; 3144 3145 list = (struct ctl_lun_list *)addr; 3146 3147 /* 3148 * Allocate a fixed length sbuf here, based on the length 3149 * of the user's buffer. We could allocate an auto-extending 3150 * buffer, and then tell the user how much larger our 3151 * amount of data is than his buffer, but that presents 3152 * some problems: 3153 * 3154 * 1. The sbuf(9) routines use a blocking malloc, and so 3155 * we can't hold a lock while calling them with an 3156 * auto-extending buffer. 3157 * 3158 * 2. There is not currently a LUN reference counting 3159 * mechanism, outside of outstanding transactions on 3160 * the LUN's OOA queue. So a LUN could go away on us 3161 * while we're getting the LUN number, backend-specific 3162 * information, etc. Thus, given the way things 3163 * currently work, we need to hold the CTL lock while 3164 * grabbing LUN information. 3165 * 3166 * So, from the user's standpoint, the best thing to do is 3167 * allocate what he thinks is a reasonable buffer length, 3168 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3169 * double the buffer length and try again. (And repeat 3170 * that until he succeeds.) 3171 */ 3172 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3173 if (sb == NULL) { 3174 list->status = CTL_LUN_LIST_ERROR; 3175 snprintf(list->error_str, sizeof(list->error_str), 3176 "Unable to allocate %d bytes for LUN list", 3177 list->alloc_len); 3178 break; 3179 } 3180 3181 sbuf_printf(sb, "<ctllunlist>\n"); 3182 3183 mtx_lock(&softc->ctl_lock); 3184 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3185 mtx_lock(&lun->lun_lock); 3186 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3187 (uintmax_t)lun->lun); 3188 3189 /* 3190 * Bail out as soon as we see that we've overfilled 3191 * the buffer. 3192 */ 3193 if (retval != 0) 3194 break; 3195 3196 retval = sbuf_printf(sb, "\t<backend_type>%s" 3197 "</backend_type>\n", 3198 (lun->backend == NULL) ? "none" : 3199 lun->backend->name); 3200 3201 if (retval != 0) 3202 break; 3203 3204 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3205 lun->be_lun->lun_type); 3206 3207 if (retval != 0) 3208 break; 3209 3210 if (lun->backend == NULL) { 3211 retval = sbuf_printf(sb, "</lun>\n"); 3212 if (retval != 0) 3213 break; 3214 continue; 3215 } 3216 3217 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3218 (lun->be_lun->maxlba > 0) ? 3219 lun->be_lun->maxlba + 1 : 0); 3220 3221 if (retval != 0) 3222 break; 3223 3224 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3225 lun->be_lun->blocksize); 3226 3227 if (retval != 0) 3228 break; 3229 3230 retval = sbuf_printf(sb, "\t<serial_number>"); 3231 3232 if (retval != 0) 3233 break; 3234 3235 retval = ctl_sbuf_printf_esc(sb, 3236 lun->be_lun->serial_num, 3237 sizeof(lun->be_lun->serial_num)); 3238 3239 if (retval != 0) 3240 break; 3241 3242 retval = sbuf_printf(sb, "</serial_number>\n"); 3243 3244 if (retval != 0) 3245 break; 3246 3247 retval = sbuf_printf(sb, "\t<device_id>"); 3248 3249 if (retval != 0) 3250 break; 3251 3252 retval = ctl_sbuf_printf_esc(sb, 3253 lun->be_lun->device_id, 3254 sizeof(lun->be_lun->device_id)); 3255 3256 if (retval != 0) 3257 break; 3258 3259 retval = sbuf_printf(sb, "</device_id>\n"); 3260 3261 if (retval != 0) 3262 break; 3263 3264 if (lun->backend->lun_info != NULL) { 3265 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3266 if (retval != 0) 3267 break; 3268 } 3269 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3270 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3271 opt->name, opt->value, opt->name); 3272 if (retval != 0) 3273 break; 3274 } 3275 3276 retval = sbuf_printf(sb, "</lun>\n"); 3277 3278 if (retval != 0) 3279 break; 3280 mtx_unlock(&lun->lun_lock); 3281 } 3282 if (lun != NULL) 3283 mtx_unlock(&lun->lun_lock); 3284 mtx_unlock(&softc->ctl_lock); 3285 3286 if ((retval != 0) 3287 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3288 retval = 0; 3289 sbuf_delete(sb); 3290 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3291 snprintf(list->error_str, sizeof(list->error_str), 3292 "Out of space, %d bytes is too small", 3293 list->alloc_len); 3294 break; 3295 } 3296 3297 sbuf_finish(sb); 3298 3299 retval = copyout(sbuf_data(sb), list->lun_xml, 3300 sbuf_len(sb) + 1); 3301 3302 list->fill_len = sbuf_len(sb) + 1; 3303 list->status = CTL_LUN_LIST_OK; 3304 sbuf_delete(sb); 3305 break; 3306 } 3307 case CTL_ISCSI: { 3308 struct ctl_iscsi *ci; 3309 struct ctl_frontend *fe; 3310 3311 ci = (struct ctl_iscsi *)addr; 3312 3313 fe = ctl_frontend_find("iscsi"); 3314 if (fe == NULL) { 3315 ci->status = CTL_ISCSI_ERROR; 3316 snprintf(ci->error_str, sizeof(ci->error_str), 3317 "Frontend \"iscsi\" not found."); 3318 break; 3319 } 3320 3321 retval = fe->ioctl(dev, cmd, addr, flag, td); 3322 break; 3323 } 3324 case CTL_PORT_REQ: { 3325 struct ctl_req *req; 3326 struct ctl_frontend *fe; 3327 3328 req = (struct ctl_req *)addr; 3329 3330 fe = ctl_frontend_find(req->driver); 3331 if (fe == NULL) { 3332 req->status = CTL_LUN_ERROR; 3333 snprintf(req->error_str, sizeof(req->error_str), 3334 "Frontend \"%s\" not found.", req->driver); 3335 break; 3336 } 3337 if (req->num_args > 0) { 3338 req->kern_args = ctl_copyin_args(req->num_args, 3339 req->args, req->error_str, sizeof(req->error_str)); 3340 if (req->kern_args == NULL) { 3341 req->status = CTL_LUN_ERROR; 3342 break; 3343 } 3344 } 3345 3346 retval = fe->ioctl(dev, cmd, addr, flag, td); 3347 3348 if (req->num_args > 0) { 3349 ctl_copyout_args(req->num_args, req->kern_args); 3350 ctl_free_args(req->num_args, req->kern_args); 3351 } 3352 break; 3353 } 3354 case CTL_PORT_LIST: { 3355 struct sbuf *sb; 3356 struct ctl_port *port; 3357 struct ctl_lun_list *list; 3358 struct ctl_option *opt; 3359 int j; 3360 3361 list = (struct ctl_lun_list *)addr; 3362 3363 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3364 if (sb == NULL) { 3365 list->status = CTL_LUN_LIST_ERROR; 3366 snprintf(list->error_str, sizeof(list->error_str), 3367 "Unable to allocate %d bytes for LUN list", 3368 list->alloc_len); 3369 break; 3370 } 3371 3372 sbuf_printf(sb, "<ctlportlist>\n"); 3373 3374 mtx_lock(&softc->ctl_lock); 3375 STAILQ_FOREACH(port, &softc->port_list, links) { 3376 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3377 (uintmax_t)port->targ_port); 3378 3379 /* 3380 * Bail out as soon as we see that we've overfilled 3381 * the buffer. 3382 */ 3383 if (retval != 0) 3384 break; 3385 3386 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3387 "</frontend_type>\n", port->frontend->name); 3388 if (retval != 0) 3389 break; 3390 3391 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3392 port->port_type); 3393 if (retval != 0) 3394 break; 3395 3396 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3397 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3398 if (retval != 0) 3399 break; 3400 3401 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3402 port->port_name); 3403 if (retval != 0) 3404 break; 3405 3406 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3407 port->physical_port); 3408 if (retval != 0) 3409 break; 3410 3411 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3412 port->virtual_port); 3413 if (retval != 0) 3414 break; 3415 3416 if (port->target_devid != NULL) { 3417 sbuf_printf(sb, "\t<target>"); 3418 ctl_id_sbuf(port->target_devid, sb); 3419 sbuf_printf(sb, "</target>\n"); 3420 } 3421 3422 if (port->port_devid != NULL) { 3423 sbuf_printf(sb, "\t<port>"); 3424 ctl_id_sbuf(port->port_devid, sb); 3425 sbuf_printf(sb, "</port>\n"); 3426 } 3427 3428 if (port->port_info != NULL) { 3429 retval = port->port_info(port->onoff_arg, sb); 3430 if (retval != 0) 3431 break; 3432 } 3433 STAILQ_FOREACH(opt, &port->options, links) { 3434 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3435 opt->name, opt->value, opt->name); 3436 if (retval != 0) 3437 break; 3438 } 3439 3440 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3441 if (port->wwpn_iid[j].in_use == 0 || 3442 (port->wwpn_iid[j].wwpn == 0 && 3443 port->wwpn_iid[j].name == NULL)) 3444 continue; 3445 3446 if (port->wwpn_iid[j].name != NULL) 3447 retval = sbuf_printf(sb, 3448 "\t<initiator>%u %s</initiator>\n", 3449 j, port->wwpn_iid[j].name); 3450 else 3451 retval = sbuf_printf(sb, 3452 "\t<initiator>%u naa.%08jx</initiator>\n", 3453 j, port->wwpn_iid[j].wwpn); 3454 if (retval != 0) 3455 break; 3456 } 3457 if (retval != 0) 3458 break; 3459 3460 retval = sbuf_printf(sb, "</targ_port>\n"); 3461 if (retval != 0) 3462 break; 3463 } 3464 mtx_unlock(&softc->ctl_lock); 3465 3466 if ((retval != 0) 3467 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3468 retval = 0; 3469 sbuf_delete(sb); 3470 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3471 snprintf(list->error_str, sizeof(list->error_str), 3472 "Out of space, %d bytes is too small", 3473 list->alloc_len); 3474 break; 3475 } 3476 3477 sbuf_finish(sb); 3478 3479 retval = copyout(sbuf_data(sb), list->lun_xml, 3480 sbuf_len(sb) + 1); 3481 3482 list->fill_len = sbuf_len(sb) + 1; 3483 list->status = CTL_LUN_LIST_OK; 3484 sbuf_delete(sb); 3485 break; 3486 } 3487 default: { 3488 /* XXX KDM should we fix this? */ 3489#if 0 3490 struct ctl_backend_driver *backend; 3491 unsigned int type; 3492 int found; 3493 3494 found = 0; 3495 3496 /* 3497 * We encode the backend type as the ioctl type for backend 3498 * ioctls. So parse it out here, and then search for a 3499 * backend of this type. 3500 */ 3501 type = _IOC_TYPE(cmd); 3502 3503 STAILQ_FOREACH(backend, &softc->be_list, links) { 3504 if (backend->type == type) { 3505 found = 1; 3506 break; 3507 } 3508 } 3509 if (found == 0) { 3510 printf("ctl: unknown ioctl command %#lx or backend " 3511 "%d\n", cmd, type); 3512 retval = EINVAL; 3513 break; 3514 } 3515 retval = backend->ioctl(dev, cmd, addr, flag, td); 3516#endif 3517 retval = ENOTTY; 3518 break; 3519 } 3520 } 3521 return (retval); 3522} 3523 3524uint32_t 3525ctl_get_initindex(struct ctl_nexus *nexus) 3526{ 3527 if (nexus->targ_port < CTL_MAX_PORTS) 3528 return (nexus->initid.id + 3529 (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3530 else 3531 return (nexus->initid.id + 3532 ((nexus->targ_port - CTL_MAX_PORTS) * 3533 CTL_MAX_INIT_PER_PORT)); 3534} 3535 3536uint32_t 3537ctl_get_resindex(struct ctl_nexus *nexus) 3538{ 3539 return (nexus->initid.id + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3540} 3541 3542uint32_t 3543ctl_port_idx(int port_num) 3544{ 3545 if (port_num < CTL_MAX_PORTS) 3546 return(port_num); 3547 else 3548 return(port_num - CTL_MAX_PORTS); 3549} 3550 3551static uint32_t 3552ctl_map_lun(int port_num, uint32_t lun_id) 3553{ 3554 struct ctl_port *port; 3555 3556 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3557 if (port == NULL) 3558 return (UINT32_MAX); 3559 if (port->lun_map == NULL) 3560 return (lun_id); 3561 return (port->lun_map(port->targ_lun_arg, lun_id)); 3562} 3563 3564static uint32_t 3565ctl_map_lun_back(int port_num, uint32_t lun_id) 3566{ 3567 struct ctl_port *port; 3568 uint32_t i; 3569 3570 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3571 if (port->lun_map == NULL) 3572 return (lun_id); 3573 for (i = 0; i < CTL_MAX_LUNS; i++) { 3574 if (port->lun_map(port->targ_lun_arg, i) == lun_id) 3575 return (i); 3576 } 3577 return (UINT32_MAX); 3578} 3579 3580/* 3581 * Note: This only works for bitmask sizes that are at least 32 bits, and 3582 * that are a power of 2. 3583 */ 3584int 3585ctl_ffz(uint32_t *mask, uint32_t size) 3586{ 3587 uint32_t num_chunks, num_pieces; 3588 int i, j; 3589 3590 num_chunks = (size >> 5); 3591 if (num_chunks == 0) 3592 num_chunks++; 3593 num_pieces = ctl_min((sizeof(uint32_t) * 8), size); 3594 3595 for (i = 0; i < num_chunks; i++) { 3596 for (j = 0; j < num_pieces; j++) { 3597 if ((mask[i] & (1 << j)) == 0) 3598 return ((i << 5) + j); 3599 } 3600 } 3601 3602 return (-1); 3603} 3604 3605int 3606ctl_set_mask(uint32_t *mask, uint32_t bit) 3607{ 3608 uint32_t chunk, piece; 3609 3610 chunk = bit >> 5; 3611 piece = bit % (sizeof(uint32_t) * 8); 3612 3613 if ((mask[chunk] & (1 << piece)) != 0) 3614 return (-1); 3615 else 3616 mask[chunk] |= (1 << piece); 3617 3618 return (0); 3619} 3620 3621int 3622ctl_clear_mask(uint32_t *mask, uint32_t bit) 3623{ 3624 uint32_t chunk, piece; 3625 3626 chunk = bit >> 5; 3627 piece = bit % (sizeof(uint32_t) * 8); 3628 3629 if ((mask[chunk] & (1 << piece)) == 0) 3630 return (-1); 3631 else 3632 mask[chunk] &= ~(1 << piece); 3633 3634 return (0); 3635} 3636 3637int 3638ctl_is_set(uint32_t *mask, uint32_t bit) 3639{ 3640 uint32_t chunk, piece; 3641 3642 chunk = bit >> 5; 3643 piece = bit % (sizeof(uint32_t) * 8); 3644 3645 if ((mask[chunk] & (1 << piece)) == 0) 3646 return (0); 3647 else 3648 return (1); 3649} 3650 3651static uint64_t 3652ctl_get_prkey(struct ctl_lun *lun, uint32_t residx) 3653{ 3654 uint64_t *t; 3655 3656 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3657 if (t == NULL) 3658 return (0); 3659 return (t[residx % CTL_MAX_INIT_PER_PORT]); 3660} 3661 3662static void 3663ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx) 3664{ 3665 uint64_t *t; 3666 3667 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3668 if (t == NULL) 3669 return; 3670 t[residx % CTL_MAX_INIT_PER_PORT] = 0; 3671} 3672 3673static void 3674ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx) 3675{ 3676 uint64_t *p; 3677 u_int i; 3678 3679 i = residx/CTL_MAX_INIT_PER_PORT; 3680 if (lun->pr_keys[i] != NULL) 3681 return; 3682 mtx_unlock(&lun->lun_lock); 3683 p = malloc(sizeof(uint64_t) * CTL_MAX_INIT_PER_PORT, M_CTL, 3684 M_WAITOK | M_ZERO); 3685 mtx_lock(&lun->lun_lock); 3686 if (lun->pr_keys[i] == NULL) 3687 lun->pr_keys[i] = p; 3688 else 3689 free(p, M_CTL); 3690} 3691 3692static void 3693ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key) 3694{ 3695 uint64_t *t; 3696 3697 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3698 KASSERT(t != NULL, ("prkey %d is not allocated", residx)); 3699 t[residx % CTL_MAX_INIT_PER_PORT] = key; 3700} 3701 3702#ifdef unused 3703/* 3704 * The bus, target and lun are optional, they can be filled in later. 3705 * can_wait is used to determine whether we can wait on the malloc or not. 3706 */ 3707union ctl_io* 3708ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, uint32_t targ_target, 3709 uint32_t targ_lun, int can_wait) 3710{ 3711 union ctl_io *io; 3712 3713 if (can_wait) 3714 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_WAITOK); 3715 else 3716 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_NOWAIT); 3717 3718 if (io != NULL) { 3719 io->io_hdr.io_type = io_type; 3720 io->io_hdr.targ_port = targ_port; 3721 /* 3722 * XXX KDM this needs to change/go away. We need to move 3723 * to a preallocated pool of ctl_scsiio structures. 3724 */ 3725 io->io_hdr.nexus.targ_target.id = targ_target; 3726 io->io_hdr.nexus.targ_lun = targ_lun; 3727 } 3728 3729 return (io); 3730} 3731 3732void 3733ctl_kfree_io(union ctl_io *io) 3734{ 3735 free(io, M_CTL); 3736} 3737#endif /* unused */ 3738 3739/* 3740 * ctl_softc, pool_name, total_ctl_io are passed in. 3741 * npool is passed out. 3742 */ 3743int 3744ctl_pool_create(struct ctl_softc *ctl_softc, const char *pool_name, 3745 uint32_t total_ctl_io, void **npool) 3746{ 3747#ifdef IO_POOLS 3748 struct ctl_io_pool *pool; 3749 3750 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3751 M_NOWAIT | M_ZERO); 3752 if (pool == NULL) 3753 return (ENOMEM); 3754 3755 snprintf(pool->name, sizeof(pool->name), "CTL IO %s", pool_name); 3756 pool->ctl_softc = ctl_softc; 3757 pool->zone = uma_zsecond_create(pool->name, NULL, 3758 NULL, NULL, NULL, ctl_softc->io_zone); 3759 /* uma_prealloc(pool->zone, total_ctl_io); */ 3760 3761 *npool = pool; 3762#else 3763 *npool = ctl_softc->io_zone; 3764#endif 3765 return (0); 3766} 3767 3768void 3769ctl_pool_free(struct ctl_io_pool *pool) 3770{ 3771 3772 if (pool == NULL) 3773 return; 3774 3775#ifdef IO_POOLS 3776 uma_zdestroy(pool->zone); 3777 free(pool, M_CTL); 3778#endif 3779} 3780 3781union ctl_io * 3782ctl_alloc_io(void *pool_ref) 3783{ 3784 union ctl_io *io; 3785#ifdef IO_POOLS 3786 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3787 3788 io = uma_zalloc(pool->zone, M_WAITOK); 3789#else 3790 io = uma_zalloc((uma_zone_t)pool_ref, M_WAITOK); 3791#endif 3792 if (io != NULL) 3793 io->io_hdr.pool = pool_ref; 3794 return (io); 3795} 3796 3797union ctl_io * 3798ctl_alloc_io_nowait(void *pool_ref) 3799{ 3800 union ctl_io *io; 3801#ifdef IO_POOLS 3802 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3803 3804 io = uma_zalloc(pool->zone, M_NOWAIT); 3805#else 3806 io = uma_zalloc((uma_zone_t)pool_ref, M_NOWAIT); 3807#endif 3808 if (io != NULL) 3809 io->io_hdr.pool = pool_ref; 3810 return (io); 3811} 3812 3813void 3814ctl_free_io(union ctl_io *io) 3815{ 3816#ifdef IO_POOLS 3817 struct ctl_io_pool *pool; 3818#endif 3819 3820 if (io == NULL) 3821 return; 3822 3823#ifdef IO_POOLS 3824 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3825 uma_zfree(pool->zone, io); 3826#else 3827 uma_zfree((uma_zone_t)io->io_hdr.pool, io); 3828#endif 3829} 3830 3831void 3832ctl_zero_io(union ctl_io *io) 3833{ 3834 void *pool_ref; 3835 3836 if (io == NULL) 3837 return; 3838 3839 /* 3840 * May need to preserve linked list pointers at some point too. 3841 */ 3842 pool_ref = io->io_hdr.pool; 3843 memset(io, 0, sizeof(*io)); 3844 io->io_hdr.pool = pool_ref; 3845} 3846 3847/* 3848 * This routine is currently used for internal copies of ctl_ios that need 3849 * to persist for some reason after we've already returned status to the 3850 * FETD. (Thus the flag set.) 3851 * 3852 * XXX XXX 3853 * Note that this makes a blind copy of all fields in the ctl_io, except 3854 * for the pool reference. This includes any memory that has been 3855 * allocated! That memory will no longer be valid after done has been 3856 * called, so this would be VERY DANGEROUS for command that actually does 3857 * any reads or writes. Right now (11/7/2005), this is only used for immediate 3858 * start and stop commands, which don't transfer any data, so this is not a 3859 * problem. If it is used for anything else, the caller would also need to 3860 * allocate data buffer space and this routine would need to be modified to 3861 * copy the data buffer(s) as well. 3862 */ 3863void 3864ctl_copy_io(union ctl_io *src, union ctl_io *dest) 3865{ 3866 void *pool_ref; 3867 3868 if ((src == NULL) 3869 || (dest == NULL)) 3870 return; 3871 3872 /* 3873 * May need to preserve linked list pointers at some point too. 3874 */ 3875 pool_ref = dest->io_hdr.pool; 3876 3877 memcpy(dest, src, ctl_min(sizeof(*src), sizeof(*dest))); 3878 3879 dest->io_hdr.pool = pool_ref; 3880 /* 3881 * We need to know that this is an internal copy, and doesn't need 3882 * to get passed back to the FETD that allocated it. 3883 */ 3884 dest->io_hdr.flags |= CTL_FLAG_INT_COPY; 3885} 3886 3887static int 3888ctl_expand_number(const char *buf, uint64_t *num) 3889{ 3890 char *endptr; 3891 uint64_t number; 3892 unsigned shift; 3893 3894 number = strtoq(buf, &endptr, 0); 3895 3896 switch (tolower((unsigned char)*endptr)) { 3897 case 'e': 3898 shift = 60; 3899 break; 3900 case 'p': 3901 shift = 50; 3902 break; 3903 case 't': 3904 shift = 40; 3905 break; 3906 case 'g': 3907 shift = 30; 3908 break; 3909 case 'm': 3910 shift = 20; 3911 break; 3912 case 'k': 3913 shift = 10; 3914 break; 3915 case 'b': 3916 case '\0': /* No unit. */ 3917 *num = number; 3918 return (0); 3919 default: 3920 /* Unrecognized unit. */ 3921 return (-1); 3922 } 3923 3924 if ((number << shift) >> shift != number) { 3925 /* Overflow */ 3926 return (-1); 3927 } 3928 *num = number << shift; 3929 return (0); 3930} 3931 3932 3933/* 3934 * This routine could be used in the future to load default and/or saved 3935 * mode page parameters for a particuar lun. 3936 */ 3937static int 3938ctl_init_page_index(struct ctl_lun *lun) 3939{ 3940 int i; 3941 struct ctl_page_index *page_index; 3942 const char *value; 3943 uint64_t ival; 3944 3945 memcpy(&lun->mode_pages.index, page_index_template, 3946 sizeof(page_index_template)); 3947 3948 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 3949 3950 page_index = &lun->mode_pages.index[i]; 3951 /* 3952 * If this is a disk-only mode page, there's no point in 3953 * setting it up. For some pages, we have to have some 3954 * basic information about the disk in order to calculate the 3955 * mode page data. 3956 */ 3957 if ((lun->be_lun->lun_type != T_DIRECT) 3958 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 3959 continue; 3960 3961 switch (page_index->page_code & SMPH_PC_MASK) { 3962 case SMS_RW_ERROR_RECOVERY_PAGE: { 3963 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3964 panic("subpage is incorrect!"); 3965 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT], 3966 &rw_er_page_default, 3967 sizeof(rw_er_page_default)); 3968 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CHANGEABLE], 3969 &rw_er_page_changeable, 3970 sizeof(rw_er_page_changeable)); 3971 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_DEFAULT], 3972 &rw_er_page_default, 3973 sizeof(rw_er_page_default)); 3974 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_SAVED], 3975 &rw_er_page_default, 3976 sizeof(rw_er_page_default)); 3977 page_index->page_data = 3978 (uint8_t *)lun->mode_pages.rw_er_page; 3979 break; 3980 } 3981 case SMS_FORMAT_DEVICE_PAGE: { 3982 struct scsi_format_page *format_page; 3983 3984 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3985 panic("subpage is incorrect!"); 3986 3987 /* 3988 * Sectors per track are set above. Bytes per 3989 * sector need to be set here on a per-LUN basis. 3990 */ 3991 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 3992 &format_page_default, 3993 sizeof(format_page_default)); 3994 memcpy(&lun->mode_pages.format_page[ 3995 CTL_PAGE_CHANGEABLE], &format_page_changeable, 3996 sizeof(format_page_changeable)); 3997 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 3998 &format_page_default, 3999 sizeof(format_page_default)); 4000 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 4001 &format_page_default, 4002 sizeof(format_page_default)); 4003 4004 format_page = &lun->mode_pages.format_page[ 4005 CTL_PAGE_CURRENT]; 4006 scsi_ulto2b(lun->be_lun->blocksize, 4007 format_page->bytes_per_sector); 4008 4009 format_page = &lun->mode_pages.format_page[ 4010 CTL_PAGE_DEFAULT]; 4011 scsi_ulto2b(lun->be_lun->blocksize, 4012 format_page->bytes_per_sector); 4013 4014 format_page = &lun->mode_pages.format_page[ 4015 CTL_PAGE_SAVED]; 4016 scsi_ulto2b(lun->be_lun->blocksize, 4017 format_page->bytes_per_sector); 4018 4019 page_index->page_data = 4020 (uint8_t *)lun->mode_pages.format_page; 4021 break; 4022 } 4023 case SMS_RIGID_DISK_PAGE: { 4024 struct scsi_rigid_disk_page *rigid_disk_page; 4025 uint32_t sectors_per_cylinder; 4026 uint64_t cylinders; 4027#ifndef __XSCALE__ 4028 int shift; 4029#endif /* !__XSCALE__ */ 4030 4031 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4032 panic("invalid subpage value %d", 4033 page_index->subpage); 4034 4035 /* 4036 * Rotation rate and sectors per track are set 4037 * above. We calculate the cylinders here based on 4038 * capacity. Due to the number of heads and 4039 * sectors per track we're using, smaller arrays 4040 * may turn out to have 0 cylinders. Linux and 4041 * FreeBSD don't pay attention to these mode pages 4042 * to figure out capacity, but Solaris does. It 4043 * seems to deal with 0 cylinders just fine, and 4044 * works out a fake geometry based on the capacity. 4045 */ 4046 memcpy(&lun->mode_pages.rigid_disk_page[ 4047 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 4048 sizeof(rigid_disk_page_default)); 4049 memcpy(&lun->mode_pages.rigid_disk_page[ 4050 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4051 sizeof(rigid_disk_page_changeable)); 4052 4053 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4054 CTL_DEFAULT_HEADS; 4055 4056 /* 4057 * The divide method here will be more accurate, 4058 * probably, but results in floating point being 4059 * used in the kernel on i386 (__udivdi3()). On the 4060 * XScale, though, __udivdi3() is implemented in 4061 * software. 4062 * 4063 * The shift method for cylinder calculation is 4064 * accurate if sectors_per_cylinder is a power of 4065 * 2. Otherwise it might be slightly off -- you 4066 * might have a bit of a truncation problem. 4067 */ 4068#ifdef __XSCALE__ 4069 cylinders = (lun->be_lun->maxlba + 1) / 4070 sectors_per_cylinder; 4071#else 4072 for (shift = 31; shift > 0; shift--) { 4073 if (sectors_per_cylinder & (1 << shift)) 4074 break; 4075 } 4076 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4077#endif 4078 4079 /* 4080 * We've basically got 3 bytes, or 24 bits for the 4081 * cylinder size in the mode page. If we're over, 4082 * just round down to 2^24. 4083 */ 4084 if (cylinders > 0xffffff) 4085 cylinders = 0xffffff; 4086 4087 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4088 CTL_PAGE_DEFAULT]; 4089 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4090 4091 if ((value = ctl_get_opt(&lun->be_lun->options, 4092 "rpm")) != NULL) { 4093 scsi_ulto2b(strtol(value, NULL, 0), 4094 rigid_disk_page->rotation_rate); 4095 } 4096 4097 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_CURRENT], 4098 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4099 sizeof(rigid_disk_page_default)); 4100 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_SAVED], 4101 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4102 sizeof(rigid_disk_page_default)); 4103 4104 page_index->page_data = 4105 (uint8_t *)lun->mode_pages.rigid_disk_page; 4106 break; 4107 } 4108 case SMS_CACHING_PAGE: { 4109 struct scsi_caching_page *caching_page; 4110 4111 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4112 panic("invalid subpage value %d", 4113 page_index->subpage); 4114 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4115 &caching_page_default, 4116 sizeof(caching_page_default)); 4117 memcpy(&lun->mode_pages.caching_page[ 4118 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4119 sizeof(caching_page_changeable)); 4120 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4121 &caching_page_default, 4122 sizeof(caching_page_default)); 4123 caching_page = &lun->mode_pages.caching_page[ 4124 CTL_PAGE_SAVED]; 4125 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4126 if (value != NULL && strcmp(value, "off") == 0) 4127 caching_page->flags1 &= ~SCP_WCE; 4128 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4129 if (value != NULL && strcmp(value, "off") == 0) 4130 caching_page->flags1 |= SCP_RCD; 4131 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4132 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4133 sizeof(caching_page_default)); 4134 page_index->page_data = 4135 (uint8_t *)lun->mode_pages.caching_page; 4136 break; 4137 } 4138 case SMS_CONTROL_MODE_PAGE: { 4139 struct scsi_control_page *control_page; 4140 4141 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4142 panic("invalid subpage value %d", 4143 page_index->subpage); 4144 4145 memcpy(&lun->mode_pages.control_page[CTL_PAGE_DEFAULT], 4146 &control_page_default, 4147 sizeof(control_page_default)); 4148 memcpy(&lun->mode_pages.control_page[ 4149 CTL_PAGE_CHANGEABLE], &control_page_changeable, 4150 sizeof(control_page_changeable)); 4151 memcpy(&lun->mode_pages.control_page[CTL_PAGE_SAVED], 4152 &control_page_default, 4153 sizeof(control_page_default)); 4154 control_page = &lun->mode_pages.control_page[ 4155 CTL_PAGE_SAVED]; 4156 value = ctl_get_opt(&lun->be_lun->options, "reordering"); 4157 if (value != NULL && strcmp(value, "unrestricted") == 0) { 4158 control_page->queue_flags &= ~SCP_QUEUE_ALG_MASK; 4159 control_page->queue_flags |= SCP_QUEUE_ALG_UNRESTRICTED; 4160 } 4161 memcpy(&lun->mode_pages.control_page[CTL_PAGE_CURRENT], 4162 &lun->mode_pages.control_page[CTL_PAGE_SAVED], 4163 sizeof(control_page_default)); 4164 page_index->page_data = 4165 (uint8_t *)lun->mode_pages.control_page; 4166 break; 4167 4168 } 4169 case SMS_INFO_EXCEPTIONS_PAGE: { 4170 switch (page_index->subpage) { 4171 case SMS_SUBPAGE_PAGE_0: 4172 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_CURRENT], 4173 &ie_page_default, 4174 sizeof(ie_page_default)); 4175 memcpy(&lun->mode_pages.ie_page[ 4176 CTL_PAGE_CHANGEABLE], &ie_page_changeable, 4177 sizeof(ie_page_changeable)); 4178 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_DEFAULT], 4179 &ie_page_default, 4180 sizeof(ie_page_default)); 4181 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_SAVED], 4182 &ie_page_default, 4183 sizeof(ie_page_default)); 4184 page_index->page_data = 4185 (uint8_t *)lun->mode_pages.ie_page; 4186 break; 4187 case 0x02: { 4188 struct ctl_logical_block_provisioning_page *page; 4189 4190 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_DEFAULT], 4191 &lbp_page_default, 4192 sizeof(lbp_page_default)); 4193 memcpy(&lun->mode_pages.lbp_page[ 4194 CTL_PAGE_CHANGEABLE], &lbp_page_changeable, 4195 sizeof(lbp_page_changeable)); 4196 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4197 &lbp_page_default, 4198 sizeof(lbp_page_default)); 4199 page = &lun->mode_pages.lbp_page[CTL_PAGE_SAVED]; 4200 value = ctl_get_opt(&lun->be_lun->options, 4201 "avail-threshold"); 4202 if (value != NULL && 4203 ctl_expand_number(value, &ival) == 0) { 4204 page->descr[0].flags |= SLBPPD_ENABLED | 4205 SLBPPD_ARMING_DEC; 4206 if (lun->be_lun->blocksize) 4207 ival /= lun->be_lun->blocksize; 4208 else 4209 ival /= 512; 4210 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4211 page->descr[0].count); 4212 } 4213 value = ctl_get_opt(&lun->be_lun->options, 4214 "used-threshold"); 4215 if (value != NULL && 4216 ctl_expand_number(value, &ival) == 0) { 4217 page->descr[1].flags |= SLBPPD_ENABLED | 4218 SLBPPD_ARMING_INC; 4219 if (lun->be_lun->blocksize) 4220 ival /= lun->be_lun->blocksize; 4221 else 4222 ival /= 512; 4223 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4224 page->descr[1].count); 4225 } 4226 value = ctl_get_opt(&lun->be_lun->options, 4227 "pool-avail-threshold"); 4228 if (value != NULL && 4229 ctl_expand_number(value, &ival) == 0) { 4230 page->descr[2].flags |= SLBPPD_ENABLED | 4231 SLBPPD_ARMING_DEC; 4232 if (lun->be_lun->blocksize) 4233 ival /= lun->be_lun->blocksize; 4234 else 4235 ival /= 512; 4236 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4237 page->descr[2].count); 4238 } 4239 value = ctl_get_opt(&lun->be_lun->options, 4240 "pool-used-threshold"); 4241 if (value != NULL && 4242 ctl_expand_number(value, &ival) == 0) { 4243 page->descr[3].flags |= SLBPPD_ENABLED | 4244 SLBPPD_ARMING_INC; 4245 if (lun->be_lun->blocksize) 4246 ival /= lun->be_lun->blocksize; 4247 else 4248 ival /= 512; 4249 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4250 page->descr[3].count); 4251 } 4252 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_CURRENT], 4253 &lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4254 sizeof(lbp_page_default)); 4255 page_index->page_data = 4256 (uint8_t *)lun->mode_pages.lbp_page; 4257 }} 4258 break; 4259 } 4260 case SMS_VENDOR_SPECIFIC_PAGE:{ 4261 switch (page_index->subpage) { 4262 case DBGCNF_SUBPAGE_CODE: { 4263 struct copan_debugconf_subpage *current_page, 4264 *saved_page; 4265 4266 memcpy(&lun->mode_pages.debugconf_subpage[ 4267 CTL_PAGE_CURRENT], 4268 &debugconf_page_default, 4269 sizeof(debugconf_page_default)); 4270 memcpy(&lun->mode_pages.debugconf_subpage[ 4271 CTL_PAGE_CHANGEABLE], 4272 &debugconf_page_changeable, 4273 sizeof(debugconf_page_changeable)); 4274 memcpy(&lun->mode_pages.debugconf_subpage[ 4275 CTL_PAGE_DEFAULT], 4276 &debugconf_page_default, 4277 sizeof(debugconf_page_default)); 4278 memcpy(&lun->mode_pages.debugconf_subpage[ 4279 CTL_PAGE_SAVED], 4280 &debugconf_page_default, 4281 sizeof(debugconf_page_default)); 4282 page_index->page_data = 4283 (uint8_t *)lun->mode_pages.debugconf_subpage; 4284 4285 current_page = (struct copan_debugconf_subpage *) 4286 (page_index->page_data + 4287 (page_index->page_len * 4288 CTL_PAGE_CURRENT)); 4289 saved_page = (struct copan_debugconf_subpage *) 4290 (page_index->page_data + 4291 (page_index->page_len * 4292 CTL_PAGE_SAVED)); 4293 break; 4294 } 4295 default: 4296 panic("invalid subpage value %d", 4297 page_index->subpage); 4298 break; 4299 } 4300 break; 4301 } 4302 default: 4303 panic("invalid page value %d", 4304 page_index->page_code & SMPH_PC_MASK); 4305 break; 4306 } 4307 } 4308 4309 return (CTL_RETVAL_COMPLETE); 4310} 4311 4312static int 4313ctl_init_log_page_index(struct ctl_lun *lun) 4314{ 4315 struct ctl_page_index *page_index; 4316 int i, j, k, prev; 4317 4318 memcpy(&lun->log_pages.index, log_page_index_template, 4319 sizeof(log_page_index_template)); 4320 4321 prev = -1; 4322 for (i = 0, j = 0, k = 0; i < CTL_NUM_LOG_PAGES; i++) { 4323 4324 page_index = &lun->log_pages.index[i]; 4325 /* 4326 * If this is a disk-only mode page, there's no point in 4327 * setting it up. For some pages, we have to have some 4328 * basic information about the disk in order to calculate the 4329 * mode page data. 4330 */ 4331 if ((lun->be_lun->lun_type != T_DIRECT) 4332 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 4333 continue; 4334 4335 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING && 4336 ((lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) == 0 || 4337 lun->backend->lun_attr == NULL)) 4338 continue; 4339 4340 if (page_index->page_code != prev) { 4341 lun->log_pages.pages_page[j] = page_index->page_code; 4342 prev = page_index->page_code; 4343 j++; 4344 } 4345 lun->log_pages.subpages_page[k*2] = page_index->page_code; 4346 lun->log_pages.subpages_page[k*2+1] = page_index->subpage; 4347 k++; 4348 } 4349 lun->log_pages.index[0].page_data = &lun->log_pages.pages_page[0]; 4350 lun->log_pages.index[0].page_len = j; 4351 lun->log_pages.index[1].page_data = &lun->log_pages.subpages_page[0]; 4352 lun->log_pages.index[1].page_len = k * 2; 4353 lun->log_pages.index[2].page_data = &lun->log_pages.lbp_page[0]; 4354 lun->log_pages.index[2].page_len = 12*CTL_NUM_LBP_PARAMS; 4355 4356 return (CTL_RETVAL_COMPLETE); 4357} 4358 4359static int 4360hex2bin(const char *str, uint8_t *buf, int buf_size) 4361{ 4362 int i; 4363 u_char c; 4364 4365 memset(buf, 0, buf_size); 4366 while (isspace(str[0])) 4367 str++; 4368 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) 4369 str += 2; 4370 buf_size *= 2; 4371 for (i = 0; str[i] != 0 && i < buf_size; i++) { 4372 c = str[i]; 4373 if (isdigit(c)) 4374 c -= '0'; 4375 else if (isalpha(c)) 4376 c -= isupper(c) ? 'A' - 10 : 'a' - 10; 4377 else 4378 break; 4379 if (c >= 16) 4380 break; 4381 if ((i & 1) == 0) 4382 buf[i / 2] |= (c << 4); 4383 else 4384 buf[i / 2] |= c; 4385 } 4386 return ((i + 1) / 2); 4387} 4388 4389/* 4390 * LUN allocation. 4391 * 4392 * Requirements: 4393 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4394 * wants us to allocate the LUN and he can block. 4395 * - ctl_softc is always set 4396 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4397 * 4398 * Returns 0 for success, non-zero (errno) for failure. 4399 */ 4400static int 4401ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4402 struct ctl_be_lun *const be_lun, struct ctl_id target_id) 4403{ 4404 struct ctl_lun *nlun, *lun; 4405 struct ctl_port *port; 4406 struct scsi_vpd_id_descriptor *desc; 4407 struct scsi_vpd_id_t10 *t10id; 4408 const char *eui, *naa, *scsiname, *vendor, *value; 4409 int lun_number, i, lun_malloced; 4410 int devidlen, idlen1, idlen2 = 0, len; 4411 4412 if (be_lun == NULL) 4413 return (EINVAL); 4414 4415 /* 4416 * We currently only support Direct Access or Processor LUN types. 4417 */ 4418 switch (be_lun->lun_type) { 4419 case T_DIRECT: 4420 break; 4421 case T_PROCESSOR: 4422 break; 4423 case T_SEQUENTIAL: 4424 case T_CHANGER: 4425 default: 4426 be_lun->lun_config_status(be_lun->be_lun, 4427 CTL_LUN_CONFIG_FAILURE); 4428 break; 4429 } 4430 if (ctl_lun == NULL) { 4431 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4432 lun_malloced = 1; 4433 } else { 4434 lun_malloced = 0; 4435 lun = ctl_lun; 4436 } 4437 4438 memset(lun, 0, sizeof(*lun)); 4439 if (lun_malloced) 4440 lun->flags = CTL_LUN_MALLOCED; 4441 4442 /* Generate LUN ID. */ 4443 devidlen = max(CTL_DEVID_MIN_LEN, 4444 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4445 idlen1 = sizeof(*t10id) + devidlen; 4446 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4447 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4448 if (scsiname != NULL) { 4449 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4450 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4451 } 4452 eui = ctl_get_opt(&be_lun->options, "eui"); 4453 if (eui != NULL) { 4454 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4455 } 4456 naa = ctl_get_opt(&be_lun->options, "naa"); 4457 if (naa != NULL) { 4458 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4459 } 4460 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4461 M_CTL, M_WAITOK | M_ZERO); 4462 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4463 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4464 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4465 desc->length = idlen1; 4466 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4467 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4468 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4469 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4470 } else { 4471 strncpy(t10id->vendor, vendor, 4472 min(sizeof(t10id->vendor), strlen(vendor))); 4473 } 4474 strncpy((char *)t10id->vendor_spec_id, 4475 (char *)be_lun->device_id, devidlen); 4476 if (scsiname != NULL) { 4477 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4478 desc->length); 4479 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4480 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4481 SVPD_ID_TYPE_SCSI_NAME; 4482 desc->length = idlen2; 4483 strlcpy(desc->identifier, scsiname, idlen2); 4484 } 4485 if (eui != NULL) { 4486 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4487 desc->length); 4488 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4489 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4490 SVPD_ID_TYPE_EUI64; 4491 desc->length = hex2bin(eui, desc->identifier, 16); 4492 desc->length = desc->length > 12 ? 16 : 4493 (desc->length > 8 ? 12 : 8); 4494 len -= 16 - desc->length; 4495 } 4496 if (naa != NULL) { 4497 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4498 desc->length); 4499 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4500 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4501 SVPD_ID_TYPE_NAA; 4502 desc->length = hex2bin(naa, desc->identifier, 16); 4503 desc->length = desc->length > 8 ? 16 : 8; 4504 len -= 16 - desc->length; 4505 } 4506 lun->lun_devid->len = len; 4507 4508 mtx_lock(&ctl_softc->ctl_lock); 4509 /* 4510 * See if the caller requested a particular LUN number. If so, see 4511 * if it is available. Otherwise, allocate the first available LUN. 4512 */ 4513 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4514 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4515 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4516 mtx_unlock(&ctl_softc->ctl_lock); 4517 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4518 printf("ctl: requested LUN ID %d is higher " 4519 "than CTL_MAX_LUNS - 1 (%d)\n", 4520 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4521 } else { 4522 /* 4523 * XXX KDM return an error, or just assign 4524 * another LUN ID in this case?? 4525 */ 4526 printf("ctl: requested LUN ID %d is already " 4527 "in use\n", be_lun->req_lun_id); 4528 } 4529 if (lun->flags & CTL_LUN_MALLOCED) 4530 free(lun, M_CTL); 4531 be_lun->lun_config_status(be_lun->be_lun, 4532 CTL_LUN_CONFIG_FAILURE); 4533 return (ENOSPC); 4534 } 4535 lun_number = be_lun->req_lun_id; 4536 } else { 4537 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, CTL_MAX_LUNS); 4538 if (lun_number == -1) { 4539 mtx_unlock(&ctl_softc->ctl_lock); 4540 printf("ctl: can't allocate LUN on target %ju, out of " 4541 "LUNs\n", (uintmax_t)target_id.id); 4542 if (lun->flags & CTL_LUN_MALLOCED) 4543 free(lun, M_CTL); 4544 be_lun->lun_config_status(be_lun->be_lun, 4545 CTL_LUN_CONFIG_FAILURE); 4546 return (ENOSPC); 4547 } 4548 } 4549 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4550 4551 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4552 lun->target = target_id; 4553 lun->lun = lun_number; 4554 lun->be_lun = be_lun; 4555 /* 4556 * The processor LUN is always enabled. Disk LUNs come on line 4557 * disabled, and must be enabled by the backend. 4558 */ 4559 lun->flags |= CTL_LUN_DISABLED; 4560 lun->backend = be_lun->be; 4561 be_lun->ctl_lun = lun; 4562 be_lun->lun_id = lun_number; 4563 atomic_add_int(&be_lun->be->num_luns, 1); 4564 if (be_lun->flags & CTL_LUN_FLAG_OFFLINE) 4565 lun->flags |= CTL_LUN_OFFLINE; 4566 4567 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4568 lun->flags |= CTL_LUN_STOPPED; 4569 4570 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4571 lun->flags |= CTL_LUN_INOPERABLE; 4572 4573 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4574 lun->flags |= CTL_LUN_PRIMARY_SC; 4575 4576 value = ctl_get_opt(&be_lun->options, "readonly"); 4577 if (value != NULL && strcmp(value, "on") == 0) 4578 lun->flags |= CTL_LUN_READONLY; 4579 4580 lun->ctl_softc = ctl_softc; 4581 TAILQ_INIT(&lun->ooa_queue); 4582 TAILQ_INIT(&lun->blocked_queue); 4583 STAILQ_INIT(&lun->error_list); 4584 ctl_tpc_lun_init(lun); 4585 4586 /* 4587 * Initialize the mode and log page index. 4588 */ 4589 ctl_init_page_index(lun); 4590 ctl_init_log_page_index(lun); 4591 4592 /* 4593 * Set the poweron UA for all initiators on this LUN only. 4594 */ 4595 for (i = 0; i < CTL_MAX_INITIATORS; i++) 4596 lun->pending_ua[i] = CTL_UA_POWERON; 4597 4598 /* 4599 * Now, before we insert this lun on the lun list, set the lun 4600 * inventory changed UA for all other luns. 4601 */ 4602 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4603 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4604 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4605 } 4606 } 4607 4608 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4609 4610 ctl_softc->ctl_luns[lun_number] = lun; 4611 4612 ctl_softc->num_luns++; 4613 4614 /* Setup statistics gathering */ 4615 lun->stats.device_type = be_lun->lun_type; 4616 lun->stats.lun_number = lun_number; 4617 if (lun->stats.device_type == T_DIRECT) 4618 lun->stats.blocksize = be_lun->blocksize; 4619 else 4620 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4621 for (i = 0;i < CTL_MAX_PORTS;i++) 4622 lun->stats.ports[i].targ_port = i; 4623 4624 mtx_unlock(&ctl_softc->ctl_lock); 4625 4626 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4627 4628 /* 4629 * Run through each registered FETD and bring it online if it isn't 4630 * already. Enable the target ID if it hasn't been enabled, and 4631 * enable this particular LUN. 4632 */ 4633 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4634 int retval; 4635 4636 retval = port->lun_enable(port->targ_lun_arg, target_id,lun_number); 4637 if (retval != 0) { 4638 printf("ctl_alloc_lun: FETD %s port %d returned error " 4639 "%d for lun_enable on target %ju lun %d\n", 4640 port->port_name, port->targ_port, retval, 4641 (uintmax_t)target_id.id, lun_number); 4642 } else 4643 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4644 } 4645 return (0); 4646} 4647 4648/* 4649 * Delete a LUN. 4650 * Assumptions: 4651 * - LUN has already been marked invalid and any pending I/O has been taken 4652 * care of. 4653 */ 4654static int 4655ctl_free_lun(struct ctl_lun *lun) 4656{ 4657 struct ctl_softc *softc; 4658#if 0 4659 struct ctl_port *port; 4660#endif 4661 struct ctl_lun *nlun; 4662 int i; 4663 4664 softc = lun->ctl_softc; 4665 4666 mtx_assert(&softc->ctl_lock, MA_OWNED); 4667 4668 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4669 4670 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4671 4672 softc->ctl_luns[lun->lun] = NULL; 4673 4674 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4675 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4676 4677 softc->num_luns--; 4678 4679 /* 4680 * XXX KDM this scheme only works for a single target/multiple LUN 4681 * setup. It needs to be revamped for a multiple target scheme. 4682 * 4683 * XXX KDM this results in port->lun_disable() getting called twice, 4684 * once when ctl_disable_lun() is called, and a second time here. 4685 * We really need to re-think the LUN disable semantics. There 4686 * should probably be several steps/levels to LUN removal: 4687 * - disable 4688 * - invalidate 4689 * - free 4690 * 4691 * Right now we only have a disable method when communicating to 4692 * the front end ports, at least for individual LUNs. 4693 */ 4694#if 0 4695 STAILQ_FOREACH(port, &softc->port_list, links) { 4696 int retval; 4697 4698 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4699 lun->lun); 4700 if (retval != 0) { 4701 printf("ctl_free_lun: FETD %s port %d returned error " 4702 "%d for lun_disable on target %ju lun %jd\n", 4703 port->port_name, port->targ_port, retval, 4704 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4705 } 4706 4707 if (STAILQ_FIRST(&softc->lun_list) == NULL) { 4708 port->status &= ~CTL_PORT_STATUS_LUN_ONLINE; 4709 4710 retval = port->targ_disable(port->targ_lun_arg,lun->target); 4711 if (retval != 0) { 4712 printf("ctl_free_lun: FETD %s port %d " 4713 "returned error %d for targ_disable on " 4714 "target %ju\n", port->port_name, 4715 port->targ_port, retval, 4716 (uintmax_t)lun->target.id); 4717 } else 4718 port->status &= ~CTL_PORT_STATUS_TARG_ONLINE; 4719 4720 if ((port->status & CTL_PORT_STATUS_TARG_ONLINE) != 0) 4721 continue; 4722 4723#if 0 4724 port->port_offline(port->onoff_arg); 4725 port->status &= ~CTL_PORT_STATUS_ONLINE; 4726#endif 4727 } 4728 } 4729#endif 4730 4731 /* 4732 * Tell the backend to free resources, if this LUN has a backend. 4733 */ 4734 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4735 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4736 4737 ctl_tpc_lun_shutdown(lun); 4738 mtx_destroy(&lun->lun_lock); 4739 free(lun->lun_devid, M_CTL); 4740 for (i = 0; i < 2 * CTL_MAX_PORTS; i++) { 4741 if (lun->pr_keys[i] != NULL) 4742 free(lun->pr_keys[i], M_CTL); 4743 } 4744 free(lun->write_buffer, M_CTL); 4745 if (lun->flags & CTL_LUN_MALLOCED) 4746 free(lun, M_CTL); 4747 4748 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4749 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4750 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4751 } 4752 } 4753 4754 return (0); 4755} 4756 4757static void 4758ctl_create_lun(struct ctl_be_lun *be_lun) 4759{ 4760 struct ctl_softc *ctl_softc; 4761 4762 ctl_softc = control_softc; 4763 4764 /* 4765 * ctl_alloc_lun() should handle all potential failure cases. 4766 */ 4767 ctl_alloc_lun(ctl_softc, NULL, be_lun, ctl_softc->target); 4768} 4769 4770int 4771ctl_add_lun(struct ctl_be_lun *be_lun) 4772{ 4773 struct ctl_softc *ctl_softc = control_softc; 4774 4775 mtx_lock(&ctl_softc->ctl_lock); 4776 STAILQ_INSERT_TAIL(&ctl_softc->pending_lun_queue, be_lun, links); 4777 mtx_unlock(&ctl_softc->ctl_lock); 4778 wakeup(&ctl_softc->pending_lun_queue); 4779 4780 return (0); 4781} 4782 4783int 4784ctl_enable_lun(struct ctl_be_lun *be_lun) 4785{ 4786 struct ctl_softc *ctl_softc; 4787 struct ctl_port *port, *nport; 4788 struct ctl_lun *lun; 4789 int retval; 4790 4791 ctl_softc = control_softc; 4792 4793 lun = (struct ctl_lun *)be_lun->ctl_lun; 4794 4795 mtx_lock(&ctl_softc->ctl_lock); 4796 mtx_lock(&lun->lun_lock); 4797 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4798 /* 4799 * eh? Why did we get called if the LUN is already 4800 * enabled? 4801 */ 4802 mtx_unlock(&lun->lun_lock); 4803 mtx_unlock(&ctl_softc->ctl_lock); 4804 return (0); 4805 } 4806 lun->flags &= ~CTL_LUN_DISABLED; 4807 mtx_unlock(&lun->lun_lock); 4808 4809 for (port = STAILQ_FIRST(&ctl_softc->port_list); port != NULL; port = nport) { 4810 nport = STAILQ_NEXT(port, links); 4811 4812 /* 4813 * Drop the lock while we call the FETD's enable routine. 4814 * This can lead to a callback into CTL (at least in the 4815 * case of the internal initiator frontend. 4816 */ 4817 mtx_unlock(&ctl_softc->ctl_lock); 4818 retval = port->lun_enable(port->targ_lun_arg, lun->target,lun->lun); 4819 mtx_lock(&ctl_softc->ctl_lock); 4820 if (retval != 0) { 4821 printf("%s: FETD %s port %d returned error " 4822 "%d for lun_enable on target %ju lun %jd\n", 4823 __func__, port->port_name, port->targ_port, retval, 4824 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4825 } 4826#if 0 4827 else { 4828 /* NOTE: TODO: why does lun enable affect port status? */ 4829 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4830 } 4831#endif 4832 } 4833 4834 mtx_unlock(&ctl_softc->ctl_lock); 4835 4836 return (0); 4837} 4838 4839int 4840ctl_disable_lun(struct ctl_be_lun *be_lun) 4841{ 4842 struct ctl_softc *ctl_softc; 4843 struct ctl_port *port; 4844 struct ctl_lun *lun; 4845 int retval; 4846 4847 ctl_softc = control_softc; 4848 4849 lun = (struct ctl_lun *)be_lun->ctl_lun; 4850 4851 mtx_lock(&ctl_softc->ctl_lock); 4852 mtx_lock(&lun->lun_lock); 4853 if (lun->flags & CTL_LUN_DISABLED) { 4854 mtx_unlock(&lun->lun_lock); 4855 mtx_unlock(&ctl_softc->ctl_lock); 4856 return (0); 4857 } 4858 lun->flags |= CTL_LUN_DISABLED; 4859 mtx_unlock(&lun->lun_lock); 4860 4861 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4862 mtx_unlock(&ctl_softc->ctl_lock); 4863 /* 4864 * Drop the lock before we call the frontend's disable 4865 * routine, to avoid lock order reversals. 4866 * 4867 * XXX KDM what happens if the frontend list changes while 4868 * we're traversing it? It's unlikely, but should be handled. 4869 */ 4870 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4871 lun->lun); 4872 mtx_lock(&ctl_softc->ctl_lock); 4873 if (retval != 0) { 4874 printf("ctl_alloc_lun: FETD %s port %d returned error " 4875 "%d for lun_disable on target %ju lun %jd\n", 4876 port->port_name, port->targ_port, retval, 4877 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4878 } 4879 } 4880 4881 mtx_unlock(&ctl_softc->ctl_lock); 4882 4883 return (0); 4884} 4885 4886int 4887ctl_start_lun(struct ctl_be_lun *be_lun) 4888{ 4889 struct ctl_softc *ctl_softc; 4890 struct ctl_lun *lun; 4891 4892 ctl_softc = control_softc; 4893 4894 lun = (struct ctl_lun *)be_lun->ctl_lun; 4895 4896 mtx_lock(&lun->lun_lock); 4897 lun->flags &= ~CTL_LUN_STOPPED; 4898 mtx_unlock(&lun->lun_lock); 4899 4900 return (0); 4901} 4902 4903int 4904ctl_stop_lun(struct ctl_be_lun *be_lun) 4905{ 4906 struct ctl_softc *ctl_softc; 4907 struct ctl_lun *lun; 4908 4909 ctl_softc = control_softc; 4910 4911 lun = (struct ctl_lun *)be_lun->ctl_lun; 4912 4913 mtx_lock(&lun->lun_lock); 4914 lun->flags |= CTL_LUN_STOPPED; 4915 mtx_unlock(&lun->lun_lock); 4916 4917 return (0); 4918} 4919 4920int 4921ctl_lun_offline(struct ctl_be_lun *be_lun) 4922{ 4923 struct ctl_softc *ctl_softc; 4924 struct ctl_lun *lun; 4925 4926 ctl_softc = control_softc; 4927 4928 lun = (struct ctl_lun *)be_lun->ctl_lun; 4929 4930 mtx_lock(&lun->lun_lock); 4931 lun->flags |= CTL_LUN_OFFLINE; 4932 mtx_unlock(&lun->lun_lock); 4933 4934 return (0); 4935} 4936 4937int 4938ctl_lun_online(struct ctl_be_lun *be_lun) 4939{ 4940 struct ctl_softc *ctl_softc; 4941 struct ctl_lun *lun; 4942 4943 ctl_softc = control_softc; 4944 4945 lun = (struct ctl_lun *)be_lun->ctl_lun; 4946 4947 mtx_lock(&lun->lun_lock); 4948 lun->flags &= ~CTL_LUN_OFFLINE; 4949 mtx_unlock(&lun->lun_lock); 4950 4951 return (0); 4952} 4953 4954int 4955ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4956{ 4957 struct ctl_softc *ctl_softc; 4958 struct ctl_lun *lun; 4959 4960 ctl_softc = control_softc; 4961 4962 lun = (struct ctl_lun *)be_lun->ctl_lun; 4963 4964 mtx_lock(&lun->lun_lock); 4965 4966 /* 4967 * The LUN needs to be disabled before it can be marked invalid. 4968 */ 4969 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4970 mtx_unlock(&lun->lun_lock); 4971 return (-1); 4972 } 4973 /* 4974 * Mark the LUN invalid. 4975 */ 4976 lun->flags |= CTL_LUN_INVALID; 4977 4978 /* 4979 * If there is nothing in the OOA queue, go ahead and free the LUN. 4980 * If we have something in the OOA queue, we'll free it when the 4981 * last I/O completes. 4982 */ 4983 if (TAILQ_EMPTY(&lun->ooa_queue)) { 4984 mtx_unlock(&lun->lun_lock); 4985 mtx_lock(&ctl_softc->ctl_lock); 4986 ctl_free_lun(lun); 4987 mtx_unlock(&ctl_softc->ctl_lock); 4988 } else 4989 mtx_unlock(&lun->lun_lock); 4990 4991 return (0); 4992} 4993 4994int 4995ctl_lun_inoperable(struct ctl_be_lun *be_lun) 4996{ 4997 struct ctl_softc *ctl_softc; 4998 struct ctl_lun *lun; 4999 5000 ctl_softc = control_softc; 5001 lun = (struct ctl_lun *)be_lun->ctl_lun; 5002 5003 mtx_lock(&lun->lun_lock); 5004 lun->flags |= CTL_LUN_INOPERABLE; 5005 mtx_unlock(&lun->lun_lock); 5006 5007 return (0); 5008} 5009 5010int 5011ctl_lun_operable(struct ctl_be_lun *be_lun) 5012{ 5013 struct ctl_softc *ctl_softc; 5014 struct ctl_lun *lun; 5015 5016 ctl_softc = control_softc; 5017 lun = (struct ctl_lun *)be_lun->ctl_lun; 5018 5019 mtx_lock(&lun->lun_lock); 5020 lun->flags &= ~CTL_LUN_INOPERABLE; 5021 mtx_unlock(&lun->lun_lock); 5022 5023 return (0); 5024} 5025 5026void 5027ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 5028{ 5029 struct ctl_lun *lun; 5030 struct ctl_softc *softc; 5031 int i; 5032 5033 softc = control_softc; 5034 5035 lun = (struct ctl_lun *)be_lun->ctl_lun; 5036 5037 mtx_lock(&lun->lun_lock); 5038 5039 for (i = 0; i < CTL_MAX_INITIATORS; i++) 5040 lun->pending_ua[i] |= CTL_UA_CAPACITY_CHANGED; 5041 5042 mtx_unlock(&lun->lun_lock); 5043} 5044 5045/* 5046 * Backend "memory move is complete" callback for requests that never 5047 * make it down to say RAIDCore's configuration code. 5048 */ 5049int 5050ctl_config_move_done(union ctl_io *io) 5051{ 5052 int retval; 5053 5054 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 5055 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI, 5056 ("Config I/O type isn't CTL_IO_SCSI (%d)!", io->io_hdr.io_type)); 5057 5058 if ((io->io_hdr.port_status != 0) && 5059 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5060 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5061 /* 5062 * For hardware error sense keys, the sense key 5063 * specific value is defined to be a retry count, 5064 * but we use it to pass back an internal FETD 5065 * error code. XXX KDM Hopefully the FETD is only 5066 * using 16 bits for an error code, since that's 5067 * all the space we have in the sks field. 5068 */ 5069 ctl_set_internal_failure(&io->scsiio, 5070 /*sks_valid*/ 1, 5071 /*retry_count*/ 5072 io->io_hdr.port_status); 5073 } 5074 5075 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) || 5076 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5077 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) || 5078 ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5079 /* 5080 * XXX KDM just assuming a single pointer here, and not a 5081 * S/G list. If we start using S/G lists for config data, 5082 * we'll need to know how to clean them up here as well. 5083 */ 5084 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5085 free(io->scsiio.kern_data_ptr, M_CTL); 5086 ctl_done(io); 5087 retval = CTL_RETVAL_COMPLETE; 5088 } else { 5089 /* 5090 * XXX KDM now we need to continue data movement. Some 5091 * options: 5092 * - call ctl_scsiio() again? We don't do this for data 5093 * writes, because for those at least we know ahead of 5094 * time where the write will go and how long it is. For 5095 * config writes, though, that information is largely 5096 * contained within the write itself, thus we need to 5097 * parse out the data again. 5098 * 5099 * - Call some other function once the data is in? 5100 */ 5101 if (ctl_debug & CTL_DEBUG_CDB_DATA) 5102 ctl_data_print(io); 5103 5104 /* 5105 * XXX KDM call ctl_scsiio() again for now, and check flag 5106 * bits to see whether we're allocated or not. 5107 */ 5108 retval = ctl_scsiio(&io->scsiio); 5109 } 5110 return (retval); 5111} 5112 5113/* 5114 * This gets called by a backend driver when it is done with a 5115 * data_submit method. 5116 */ 5117void 5118ctl_data_submit_done(union ctl_io *io) 5119{ 5120 /* 5121 * If the IO_CONT flag is set, we need to call the supplied 5122 * function to continue processing the I/O, instead of completing 5123 * the I/O just yet. 5124 * 5125 * If there is an error, though, we don't want to keep processing. 5126 * Instead, just send status back to the initiator. 5127 */ 5128 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5129 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5130 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5131 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5132 io->scsiio.io_cont(io); 5133 return; 5134 } 5135 ctl_done(io); 5136} 5137 5138/* 5139 * This gets called by a backend driver when it is done with a 5140 * configuration write. 5141 */ 5142void 5143ctl_config_write_done(union ctl_io *io) 5144{ 5145 uint8_t *buf; 5146 5147 /* 5148 * If the IO_CONT flag is set, we need to call the supplied 5149 * function to continue processing the I/O, instead of completing 5150 * the I/O just yet. 5151 * 5152 * If there is an error, though, we don't want to keep processing. 5153 * Instead, just send status back to the initiator. 5154 */ 5155 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5156 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5157 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5158 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5159 io->scsiio.io_cont(io); 5160 return; 5161 } 5162 /* 5163 * Since a configuration write can be done for commands that actually 5164 * have data allocated, like write buffer, and commands that have 5165 * no data, like start/stop unit, we need to check here. 5166 */ 5167 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5168 buf = io->scsiio.kern_data_ptr; 5169 else 5170 buf = NULL; 5171 ctl_done(io); 5172 if (buf) 5173 free(buf, M_CTL); 5174} 5175 5176/* 5177 * SCSI release command. 5178 */ 5179int 5180ctl_scsi_release(struct ctl_scsiio *ctsio) 5181{ 5182 int length, longid, thirdparty_id, resv_id; 5183 struct ctl_softc *ctl_softc; 5184 struct ctl_lun *lun; 5185 uint32_t residx; 5186 5187 length = 0; 5188 resv_id = 0; 5189 5190 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5191 5192 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5193 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5194 ctl_softc = control_softc; 5195 5196 switch (ctsio->cdb[0]) { 5197 case RELEASE_10: { 5198 struct scsi_release_10 *cdb; 5199 5200 cdb = (struct scsi_release_10 *)ctsio->cdb; 5201 5202 if (cdb->byte2 & SR10_LONGID) 5203 longid = 1; 5204 else 5205 thirdparty_id = cdb->thirdparty_id; 5206 5207 resv_id = cdb->resv_id; 5208 length = scsi_2btoul(cdb->length); 5209 break; 5210 } 5211 } 5212 5213 5214 /* 5215 * XXX KDM right now, we only support LUN reservation. We don't 5216 * support 3rd party reservations, or extent reservations, which 5217 * might actually need the parameter list. If we've gotten this 5218 * far, we've got a LUN reservation. Anything else got kicked out 5219 * above. So, according to SPC, ignore the length. 5220 */ 5221 length = 0; 5222 5223 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5224 && (length > 0)) { 5225 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5226 ctsio->kern_data_len = length; 5227 ctsio->kern_total_len = length; 5228 ctsio->kern_data_resid = 0; 5229 ctsio->kern_rel_offset = 0; 5230 ctsio->kern_sg_entries = 0; 5231 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5232 ctsio->be_move_done = ctl_config_move_done; 5233 ctl_datamove((union ctl_io *)ctsio); 5234 5235 return (CTL_RETVAL_COMPLETE); 5236 } 5237 5238 if (length > 0) 5239 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5240 5241 mtx_lock(&lun->lun_lock); 5242 5243 /* 5244 * According to SPC, it is not an error for an intiator to attempt 5245 * to release a reservation on a LUN that isn't reserved, or that 5246 * is reserved by another initiator. The reservation can only be 5247 * released, though, by the initiator who made it or by one of 5248 * several reset type events. 5249 */ 5250 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5251 lun->flags &= ~CTL_LUN_RESERVED; 5252 5253 mtx_unlock(&lun->lun_lock); 5254 5255 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5256 free(ctsio->kern_data_ptr, M_CTL); 5257 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5258 } 5259 5260 ctl_set_success(ctsio); 5261 ctl_done((union ctl_io *)ctsio); 5262 return (CTL_RETVAL_COMPLETE); 5263} 5264 5265int 5266ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5267{ 5268 int extent, thirdparty, longid; 5269 int resv_id, length; 5270 uint64_t thirdparty_id; 5271 struct ctl_softc *ctl_softc; 5272 struct ctl_lun *lun; 5273 uint32_t residx; 5274 5275 extent = 0; 5276 thirdparty = 0; 5277 longid = 0; 5278 resv_id = 0; 5279 length = 0; 5280 thirdparty_id = 0; 5281 5282 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5283 5284 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5285 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5286 ctl_softc = control_softc; 5287 5288 switch (ctsio->cdb[0]) { 5289 case RESERVE_10: { 5290 struct scsi_reserve_10 *cdb; 5291 5292 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 5293 5294 if (cdb->byte2 & SR10_LONGID) 5295 longid = 1; 5296 else 5297 thirdparty_id = cdb->thirdparty_id; 5298 5299 resv_id = cdb->resv_id; 5300 length = scsi_2btoul(cdb->length); 5301 break; 5302 } 5303 } 5304 5305 /* 5306 * XXX KDM right now, we only support LUN reservation. We don't 5307 * support 3rd party reservations, or extent reservations, which 5308 * might actually need the parameter list. If we've gotten this 5309 * far, we've got a LUN reservation. Anything else got kicked out 5310 * above. So, according to SPC, ignore the length. 5311 */ 5312 length = 0; 5313 5314 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5315 && (length > 0)) { 5316 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5317 ctsio->kern_data_len = length; 5318 ctsio->kern_total_len = length; 5319 ctsio->kern_data_resid = 0; 5320 ctsio->kern_rel_offset = 0; 5321 ctsio->kern_sg_entries = 0; 5322 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5323 ctsio->be_move_done = ctl_config_move_done; 5324 ctl_datamove((union ctl_io *)ctsio); 5325 5326 return (CTL_RETVAL_COMPLETE); 5327 } 5328 5329 if (length > 0) 5330 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5331 5332 mtx_lock(&lun->lun_lock); 5333 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5334 ctl_set_reservation_conflict(ctsio); 5335 goto bailout; 5336 } 5337 5338 lun->flags |= CTL_LUN_RESERVED; 5339 lun->res_idx = residx; 5340 5341 ctl_set_success(ctsio); 5342 5343bailout: 5344 mtx_unlock(&lun->lun_lock); 5345 5346 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5347 free(ctsio->kern_data_ptr, M_CTL); 5348 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5349 } 5350 5351 ctl_done((union ctl_io *)ctsio); 5352 return (CTL_RETVAL_COMPLETE); 5353} 5354 5355int 5356ctl_start_stop(struct ctl_scsiio *ctsio) 5357{ 5358 struct scsi_start_stop_unit *cdb; 5359 struct ctl_lun *lun; 5360 struct ctl_softc *ctl_softc; 5361 int retval; 5362 5363 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5364 5365 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5366 ctl_softc = control_softc; 5367 retval = 0; 5368 5369 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5370 5371 /* 5372 * XXX KDM 5373 * We don't support the immediate bit on a stop unit. In order to 5374 * do that, we would need to code up a way to know that a stop is 5375 * pending, and hold off any new commands until it completes, one 5376 * way or another. Then we could accept or reject those commands 5377 * depending on its status. We would almost need to do the reverse 5378 * of what we do below for an immediate start -- return the copy of 5379 * the ctl_io to the FETD with status to send to the host (and to 5380 * free the copy!) and then free the original I/O once the stop 5381 * actually completes. That way, the OOA queue mechanism can work 5382 * to block commands that shouldn't proceed. Another alternative 5383 * would be to put the copy in the queue in place of the original, 5384 * and return the original back to the caller. That could be 5385 * slightly safer.. 5386 */ 5387 if ((cdb->byte2 & SSS_IMMED) 5388 && ((cdb->how & SSS_START) == 0)) { 5389 ctl_set_invalid_field(ctsio, 5390 /*sks_valid*/ 1, 5391 /*command*/ 1, 5392 /*field*/ 1, 5393 /*bit_valid*/ 1, 5394 /*bit*/ 0); 5395 ctl_done((union ctl_io *)ctsio); 5396 return (CTL_RETVAL_COMPLETE); 5397 } 5398 5399 if ((lun->flags & CTL_LUN_PR_RESERVED) 5400 && ((cdb->how & SSS_START)==0)) { 5401 uint32_t residx; 5402 5403 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5404 if (ctl_get_prkey(lun, residx) == 0 5405 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5406 5407 ctl_set_reservation_conflict(ctsio); 5408 ctl_done((union ctl_io *)ctsio); 5409 return (CTL_RETVAL_COMPLETE); 5410 } 5411 } 5412 5413 /* 5414 * If there is no backend on this device, we can't start or stop 5415 * it. In theory we shouldn't get any start/stop commands in the 5416 * first place at this level if the LUN doesn't have a backend. 5417 * That should get stopped by the command decode code. 5418 */ 5419 if (lun->backend == NULL) { 5420 ctl_set_invalid_opcode(ctsio); 5421 ctl_done((union ctl_io *)ctsio); 5422 return (CTL_RETVAL_COMPLETE); 5423 } 5424 5425 /* 5426 * XXX KDM Copan-specific offline behavior. 5427 * Figure out a reasonable way to port this? 5428 */ 5429#ifdef NEEDTOPORT 5430 mtx_lock(&lun->lun_lock); 5431 5432 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5433 && (lun->flags & CTL_LUN_OFFLINE)) { 5434 /* 5435 * If the LUN is offline, and the on/offline bit isn't set, 5436 * reject the start or stop. Otherwise, let it through. 5437 */ 5438 mtx_unlock(&lun->lun_lock); 5439 ctl_set_lun_not_ready(ctsio); 5440 ctl_done((union ctl_io *)ctsio); 5441 } else { 5442 mtx_unlock(&lun->lun_lock); 5443#endif /* NEEDTOPORT */ 5444 /* 5445 * This could be a start or a stop when we're online, 5446 * or a stop/offline or start/online. A start or stop when 5447 * we're offline is covered in the case above. 5448 */ 5449 /* 5450 * In the non-immediate case, we send the request to 5451 * the backend and return status to the user when 5452 * it is done. 5453 * 5454 * In the immediate case, we allocate a new ctl_io 5455 * to hold a copy of the request, and send that to 5456 * the backend. We then set good status on the 5457 * user's request and return it immediately. 5458 */ 5459 if (cdb->byte2 & SSS_IMMED) { 5460 union ctl_io *new_io; 5461 5462 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5463 ctl_copy_io((union ctl_io *)ctsio, new_io); 5464 retval = lun->backend->config_write(new_io); 5465 ctl_set_success(ctsio); 5466 ctl_done((union ctl_io *)ctsio); 5467 } else { 5468 retval = lun->backend->config_write( 5469 (union ctl_io *)ctsio); 5470 } 5471#ifdef NEEDTOPORT 5472 } 5473#endif 5474 return (retval); 5475} 5476 5477/* 5478 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5479 * we don't really do anything with the LBA and length fields if the user 5480 * passes them in. Instead we'll just flush out the cache for the entire 5481 * LUN. 5482 */ 5483int 5484ctl_sync_cache(struct ctl_scsiio *ctsio) 5485{ 5486 struct ctl_lun *lun; 5487 struct ctl_softc *ctl_softc; 5488 uint64_t starting_lba; 5489 uint32_t block_count; 5490 int retval; 5491 5492 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5493 5494 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5495 ctl_softc = control_softc; 5496 retval = 0; 5497 5498 switch (ctsio->cdb[0]) { 5499 case SYNCHRONIZE_CACHE: { 5500 struct scsi_sync_cache *cdb; 5501 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5502 5503 starting_lba = scsi_4btoul(cdb->begin_lba); 5504 block_count = scsi_2btoul(cdb->lb_count); 5505 break; 5506 } 5507 case SYNCHRONIZE_CACHE_16: { 5508 struct scsi_sync_cache_16 *cdb; 5509 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5510 5511 starting_lba = scsi_8btou64(cdb->begin_lba); 5512 block_count = scsi_4btoul(cdb->lb_count); 5513 break; 5514 } 5515 default: 5516 ctl_set_invalid_opcode(ctsio); 5517 ctl_done((union ctl_io *)ctsio); 5518 goto bailout; 5519 break; /* NOTREACHED */ 5520 } 5521 5522 /* 5523 * We check the LBA and length, but don't do anything with them. 5524 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5525 * get flushed. This check will just help satisfy anyone who wants 5526 * to see an error for an out of range LBA. 5527 */ 5528 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5529 ctl_set_lba_out_of_range(ctsio); 5530 ctl_done((union ctl_io *)ctsio); 5531 goto bailout; 5532 } 5533 5534 /* 5535 * If this LUN has no backend, we can't flush the cache anyway. 5536 */ 5537 if (lun->backend == NULL) { 5538 ctl_set_invalid_opcode(ctsio); 5539 ctl_done((union ctl_io *)ctsio); 5540 goto bailout; 5541 } 5542 5543 /* 5544 * Check to see whether we're configured to send the SYNCHRONIZE 5545 * CACHE command directly to the back end. 5546 */ 5547 mtx_lock(&lun->lun_lock); 5548 if ((ctl_softc->flags & CTL_FLAG_REAL_SYNC) 5549 && (++(lun->sync_count) >= lun->sync_interval)) { 5550 lun->sync_count = 0; 5551 mtx_unlock(&lun->lun_lock); 5552 retval = lun->backend->config_write((union ctl_io *)ctsio); 5553 } else { 5554 mtx_unlock(&lun->lun_lock); 5555 ctl_set_success(ctsio); 5556 ctl_done((union ctl_io *)ctsio); 5557 } 5558 5559bailout: 5560 5561 return (retval); 5562} 5563 5564int 5565ctl_format(struct ctl_scsiio *ctsio) 5566{ 5567 struct scsi_format *cdb; 5568 struct ctl_lun *lun; 5569 struct ctl_softc *ctl_softc; 5570 int length, defect_list_len; 5571 5572 CTL_DEBUG_PRINT(("ctl_format\n")); 5573 5574 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5575 ctl_softc = control_softc; 5576 5577 cdb = (struct scsi_format *)ctsio->cdb; 5578 5579 length = 0; 5580 if (cdb->byte2 & SF_FMTDATA) { 5581 if (cdb->byte2 & SF_LONGLIST) 5582 length = sizeof(struct scsi_format_header_long); 5583 else 5584 length = sizeof(struct scsi_format_header_short); 5585 } 5586 5587 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5588 && (length > 0)) { 5589 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5590 ctsio->kern_data_len = length; 5591 ctsio->kern_total_len = length; 5592 ctsio->kern_data_resid = 0; 5593 ctsio->kern_rel_offset = 0; 5594 ctsio->kern_sg_entries = 0; 5595 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5596 ctsio->be_move_done = ctl_config_move_done; 5597 ctl_datamove((union ctl_io *)ctsio); 5598 5599 return (CTL_RETVAL_COMPLETE); 5600 } 5601 5602 defect_list_len = 0; 5603 5604 if (cdb->byte2 & SF_FMTDATA) { 5605 if (cdb->byte2 & SF_LONGLIST) { 5606 struct scsi_format_header_long *header; 5607 5608 header = (struct scsi_format_header_long *) 5609 ctsio->kern_data_ptr; 5610 5611 defect_list_len = scsi_4btoul(header->defect_list_len); 5612 if (defect_list_len != 0) { 5613 ctl_set_invalid_field(ctsio, 5614 /*sks_valid*/ 1, 5615 /*command*/ 0, 5616 /*field*/ 2, 5617 /*bit_valid*/ 0, 5618 /*bit*/ 0); 5619 goto bailout; 5620 } 5621 } else { 5622 struct scsi_format_header_short *header; 5623 5624 header = (struct scsi_format_header_short *) 5625 ctsio->kern_data_ptr; 5626 5627 defect_list_len = scsi_2btoul(header->defect_list_len); 5628 if (defect_list_len != 0) { 5629 ctl_set_invalid_field(ctsio, 5630 /*sks_valid*/ 1, 5631 /*command*/ 0, 5632 /*field*/ 2, 5633 /*bit_valid*/ 0, 5634 /*bit*/ 0); 5635 goto bailout; 5636 } 5637 } 5638 } 5639 5640 /* 5641 * The format command will clear out the "Medium format corrupted" 5642 * status if set by the configuration code. That status is really 5643 * just a way to notify the host that we have lost the media, and 5644 * get them to issue a command that will basically make them think 5645 * they're blowing away the media. 5646 */ 5647 mtx_lock(&lun->lun_lock); 5648 lun->flags &= ~CTL_LUN_INOPERABLE; 5649 mtx_unlock(&lun->lun_lock); 5650 5651 ctl_set_success(ctsio); 5652bailout: 5653 5654 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5655 free(ctsio->kern_data_ptr, M_CTL); 5656 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5657 } 5658 5659 ctl_done((union ctl_io *)ctsio); 5660 return (CTL_RETVAL_COMPLETE); 5661} 5662 5663int 5664ctl_read_buffer(struct ctl_scsiio *ctsio) 5665{ 5666 struct scsi_read_buffer *cdb; 5667 struct ctl_lun *lun; 5668 int buffer_offset, len; 5669 static uint8_t descr[4]; 5670 static uint8_t echo_descr[4] = { 0 }; 5671 5672 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5673 5674 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5675 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5676 5677 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA && 5678 (cdb->byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5679 (cdb->byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5680 ctl_set_invalid_field(ctsio, 5681 /*sks_valid*/ 1, 5682 /*command*/ 1, 5683 /*field*/ 1, 5684 /*bit_valid*/ 1, 5685 /*bit*/ 4); 5686 ctl_done((union ctl_io *)ctsio); 5687 return (CTL_RETVAL_COMPLETE); 5688 } 5689 5690 len = scsi_3btoul(cdb->length); 5691 buffer_offset = scsi_3btoul(cdb->offset); 5692 5693 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5694 ctl_set_invalid_field(ctsio, 5695 /*sks_valid*/ 1, 5696 /*command*/ 1, 5697 /*field*/ 6, 5698 /*bit_valid*/ 0, 5699 /*bit*/ 0); 5700 ctl_done((union ctl_io *)ctsio); 5701 return (CTL_RETVAL_COMPLETE); 5702 } 5703 5704 if ((cdb->byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5705 descr[0] = 0; 5706 scsi_ulto3b(CTL_WRITE_BUFFER_SIZE, &descr[1]); 5707 ctsio->kern_data_ptr = descr; 5708 len = min(len, sizeof(descr)); 5709 } else if ((cdb->byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5710 ctsio->kern_data_ptr = echo_descr; 5711 len = min(len, sizeof(echo_descr)); 5712 } else { 5713 if (lun->write_buffer == NULL) { 5714 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5715 M_CTL, M_WAITOK); 5716 } 5717 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5718 } 5719 ctsio->kern_data_len = len; 5720 ctsio->kern_total_len = len; 5721 ctsio->kern_data_resid = 0; 5722 ctsio->kern_rel_offset = 0; 5723 ctsio->kern_sg_entries = 0; 5724 ctl_set_success(ctsio); 5725 ctsio->be_move_done = ctl_config_move_done; 5726 ctl_datamove((union ctl_io *)ctsio); 5727 return (CTL_RETVAL_COMPLETE); 5728} 5729 5730int 5731ctl_write_buffer(struct ctl_scsiio *ctsio) 5732{ 5733 struct scsi_write_buffer *cdb; 5734 struct ctl_lun *lun; 5735 int buffer_offset, len; 5736 5737 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5738 5739 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5740 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5741 5742 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5743 ctl_set_invalid_field(ctsio, 5744 /*sks_valid*/ 1, 5745 /*command*/ 1, 5746 /*field*/ 1, 5747 /*bit_valid*/ 1, 5748 /*bit*/ 4); 5749 ctl_done((union ctl_io *)ctsio); 5750 return (CTL_RETVAL_COMPLETE); 5751 } 5752 5753 len = scsi_3btoul(cdb->length); 5754 buffer_offset = scsi_3btoul(cdb->offset); 5755 5756 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5757 ctl_set_invalid_field(ctsio, 5758 /*sks_valid*/ 1, 5759 /*command*/ 1, 5760 /*field*/ 6, 5761 /*bit_valid*/ 0, 5762 /*bit*/ 0); 5763 ctl_done((union ctl_io *)ctsio); 5764 return (CTL_RETVAL_COMPLETE); 5765 } 5766 5767 /* 5768 * If we've got a kernel request that hasn't been malloced yet, 5769 * malloc it and tell the caller the data buffer is here. 5770 */ 5771 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5772 if (lun->write_buffer == NULL) { 5773 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5774 M_CTL, M_WAITOK); 5775 } 5776 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5777 ctsio->kern_data_len = len; 5778 ctsio->kern_total_len = len; 5779 ctsio->kern_data_resid = 0; 5780 ctsio->kern_rel_offset = 0; 5781 ctsio->kern_sg_entries = 0; 5782 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5783 ctsio->be_move_done = ctl_config_move_done; 5784 ctl_datamove((union ctl_io *)ctsio); 5785 5786 return (CTL_RETVAL_COMPLETE); 5787 } 5788 5789 ctl_set_success(ctsio); 5790 ctl_done((union ctl_io *)ctsio); 5791 return (CTL_RETVAL_COMPLETE); 5792} 5793 5794int 5795ctl_write_same(struct ctl_scsiio *ctsio) 5796{ 5797 struct ctl_lun *lun; 5798 struct ctl_lba_len_flags *lbalen; 5799 uint64_t lba; 5800 uint32_t num_blocks; 5801 int len, retval; 5802 uint8_t byte2; 5803 5804 retval = CTL_RETVAL_COMPLETE; 5805 5806 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5807 5808 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5809 5810 switch (ctsio->cdb[0]) { 5811 case WRITE_SAME_10: { 5812 struct scsi_write_same_10 *cdb; 5813 5814 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5815 5816 lba = scsi_4btoul(cdb->addr); 5817 num_blocks = scsi_2btoul(cdb->length); 5818 byte2 = cdb->byte2; 5819 break; 5820 } 5821 case WRITE_SAME_16: { 5822 struct scsi_write_same_16 *cdb; 5823 5824 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5825 5826 lba = scsi_8btou64(cdb->addr); 5827 num_blocks = scsi_4btoul(cdb->length); 5828 byte2 = cdb->byte2; 5829 break; 5830 } 5831 default: 5832 /* 5833 * We got a command we don't support. This shouldn't 5834 * happen, commands should be filtered out above us. 5835 */ 5836 ctl_set_invalid_opcode(ctsio); 5837 ctl_done((union ctl_io *)ctsio); 5838 5839 return (CTL_RETVAL_COMPLETE); 5840 break; /* NOTREACHED */ 5841 } 5842 5843 /* NDOB and ANCHOR flags can be used only together with UNMAP */ 5844 if ((byte2 & SWS_UNMAP) == 0 && 5845 (byte2 & (SWS_NDOB | SWS_ANCHOR)) != 0) { 5846 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5847 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5848 ctl_done((union ctl_io *)ctsio); 5849 return (CTL_RETVAL_COMPLETE); 5850 } 5851 5852 /* 5853 * The first check is to make sure we're in bounds, the second 5854 * check is to catch wrap-around problems. If the lba + num blocks 5855 * is less than the lba, then we've wrapped around and the block 5856 * range is invalid anyway. 5857 */ 5858 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5859 || ((lba + num_blocks) < lba)) { 5860 ctl_set_lba_out_of_range(ctsio); 5861 ctl_done((union ctl_io *)ctsio); 5862 return (CTL_RETVAL_COMPLETE); 5863 } 5864 5865 /* Zero number of blocks means "to the last logical block" */ 5866 if (num_blocks == 0) { 5867 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5868 ctl_set_invalid_field(ctsio, 5869 /*sks_valid*/ 0, 5870 /*command*/ 1, 5871 /*field*/ 0, 5872 /*bit_valid*/ 0, 5873 /*bit*/ 0); 5874 ctl_done((union ctl_io *)ctsio); 5875 return (CTL_RETVAL_COMPLETE); 5876 } 5877 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5878 } 5879 5880 len = lun->be_lun->blocksize; 5881 5882 /* 5883 * If we've got a kernel request that hasn't been malloced yet, 5884 * malloc it and tell the caller the data buffer is here. 5885 */ 5886 if ((byte2 & SWS_NDOB) == 0 && 5887 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5888 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5889 ctsio->kern_data_len = len; 5890 ctsio->kern_total_len = len; 5891 ctsio->kern_data_resid = 0; 5892 ctsio->kern_rel_offset = 0; 5893 ctsio->kern_sg_entries = 0; 5894 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5895 ctsio->be_move_done = ctl_config_move_done; 5896 ctl_datamove((union ctl_io *)ctsio); 5897 5898 return (CTL_RETVAL_COMPLETE); 5899 } 5900 5901 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5902 lbalen->lba = lba; 5903 lbalen->len = num_blocks; 5904 lbalen->flags = byte2; 5905 retval = lun->backend->config_write((union ctl_io *)ctsio); 5906 5907 return (retval); 5908} 5909 5910int 5911ctl_unmap(struct ctl_scsiio *ctsio) 5912{ 5913 struct ctl_lun *lun; 5914 struct scsi_unmap *cdb; 5915 struct ctl_ptr_len_flags *ptrlen; 5916 struct scsi_unmap_header *hdr; 5917 struct scsi_unmap_desc *buf, *end, *endnz, *range; 5918 uint64_t lba; 5919 uint32_t num_blocks; 5920 int len, retval; 5921 uint8_t byte2; 5922 5923 retval = CTL_RETVAL_COMPLETE; 5924 5925 CTL_DEBUG_PRINT(("ctl_unmap\n")); 5926 5927 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5928 cdb = (struct scsi_unmap *)ctsio->cdb; 5929 5930 len = scsi_2btoul(cdb->length); 5931 byte2 = cdb->byte2; 5932 5933 /* 5934 * If we've got a kernel request that hasn't been malloced yet, 5935 * malloc it and tell the caller the data buffer is here. 5936 */ 5937 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5938 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5939 ctsio->kern_data_len = len; 5940 ctsio->kern_total_len = len; 5941 ctsio->kern_data_resid = 0; 5942 ctsio->kern_rel_offset = 0; 5943 ctsio->kern_sg_entries = 0; 5944 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5945 ctsio->be_move_done = ctl_config_move_done; 5946 ctl_datamove((union ctl_io *)ctsio); 5947 5948 return (CTL_RETVAL_COMPLETE); 5949 } 5950 5951 len = ctsio->kern_total_len - ctsio->kern_data_resid; 5952 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 5953 if (len < sizeof (*hdr) || 5954 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 5955 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 5956 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 5957 ctl_set_invalid_field(ctsio, 5958 /*sks_valid*/ 0, 5959 /*command*/ 0, 5960 /*field*/ 0, 5961 /*bit_valid*/ 0, 5962 /*bit*/ 0); 5963 goto done; 5964 } 5965 len = scsi_2btoul(hdr->desc_length); 5966 buf = (struct scsi_unmap_desc *)(hdr + 1); 5967 end = buf + len / sizeof(*buf); 5968 5969 endnz = buf; 5970 for (range = buf; range < end; range++) { 5971 lba = scsi_8btou64(range->lba); 5972 num_blocks = scsi_4btoul(range->length); 5973 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5974 || ((lba + num_blocks) < lba)) { 5975 ctl_set_lba_out_of_range(ctsio); 5976 ctl_done((union ctl_io *)ctsio); 5977 return (CTL_RETVAL_COMPLETE); 5978 } 5979 if (num_blocks != 0) 5980 endnz = range + 1; 5981 } 5982 5983 /* 5984 * Block backend can not handle zero last range. 5985 * Filter it out and return if there is nothing left. 5986 */ 5987 len = (uint8_t *)endnz - (uint8_t *)buf; 5988 if (len == 0) { 5989 ctl_set_success(ctsio); 5990 goto done; 5991 } 5992 5993 mtx_lock(&lun->lun_lock); 5994 ptrlen = (struct ctl_ptr_len_flags *) 5995 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5996 ptrlen->ptr = (void *)buf; 5997 ptrlen->len = len; 5998 ptrlen->flags = byte2; 5999 ctl_check_blocked(lun); 6000 mtx_unlock(&lun->lun_lock); 6001 6002 retval = lun->backend->config_write((union ctl_io *)ctsio); 6003 return (retval); 6004 6005done: 6006 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 6007 free(ctsio->kern_data_ptr, M_CTL); 6008 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 6009 } 6010 ctl_done((union ctl_io *)ctsio); 6011 return (CTL_RETVAL_COMPLETE); 6012} 6013 6014/* 6015 * Note that this function currently doesn't actually do anything inside 6016 * CTL to enforce things if the DQue bit is turned on. 6017 * 6018 * Also note that this function can't be used in the default case, because 6019 * the DQue bit isn't set in the changeable mask for the control mode page 6020 * anyway. This is just here as an example for how to implement a page 6021 * handler, and a placeholder in case we want to allow the user to turn 6022 * tagged queueing on and off. 6023 * 6024 * The D_SENSE bit handling is functional, however, and will turn 6025 * descriptor sense on and off for a given LUN. 6026 */ 6027int 6028ctl_control_page_handler(struct ctl_scsiio *ctsio, 6029 struct ctl_page_index *page_index, uint8_t *page_ptr) 6030{ 6031 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 6032 struct ctl_lun *lun; 6033 struct ctl_softc *softc; 6034 int set_ua; 6035 uint32_t initidx; 6036 6037 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6038 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6039 set_ua = 0; 6040 6041 user_cp = (struct scsi_control_page *)page_ptr; 6042 current_cp = (struct scsi_control_page *) 6043 (page_index->page_data + (page_index->page_len * 6044 CTL_PAGE_CURRENT)); 6045 saved_cp = (struct scsi_control_page *) 6046 (page_index->page_data + (page_index->page_len * 6047 CTL_PAGE_SAVED)); 6048 6049 softc = control_softc; 6050 6051 mtx_lock(&lun->lun_lock); 6052 if (((current_cp->rlec & SCP_DSENSE) == 0) 6053 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 6054 /* 6055 * Descriptor sense is currently turned off and the user 6056 * wants to turn it on. 6057 */ 6058 current_cp->rlec |= SCP_DSENSE; 6059 saved_cp->rlec |= SCP_DSENSE; 6060 lun->flags |= CTL_LUN_SENSE_DESC; 6061 set_ua = 1; 6062 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 6063 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 6064 /* 6065 * Descriptor sense is currently turned on, and the user 6066 * wants to turn it off. 6067 */ 6068 current_cp->rlec &= ~SCP_DSENSE; 6069 saved_cp->rlec &= ~SCP_DSENSE; 6070 lun->flags &= ~CTL_LUN_SENSE_DESC; 6071 set_ua = 1; 6072 } 6073 if ((current_cp->queue_flags & SCP_QUEUE_ALG_MASK) != 6074 (user_cp->queue_flags & SCP_QUEUE_ALG_MASK)) { 6075 current_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6076 current_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6077 saved_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6078 saved_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6079 set_ua = 1; 6080 } 6081 if ((current_cp->eca_and_aen & SCP_SWP) != 6082 (user_cp->eca_and_aen & SCP_SWP)) { 6083 current_cp->eca_and_aen &= ~SCP_SWP; 6084 current_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6085 saved_cp->eca_and_aen &= ~SCP_SWP; 6086 saved_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6087 set_ua = 1; 6088 } 6089 if (set_ua != 0) { 6090 int i; 6091 /* 6092 * Let other initiators know that the mode 6093 * parameters for this LUN have changed. 6094 */ 6095 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6096 if (i == initidx) 6097 continue; 6098 6099 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6100 } 6101 } 6102 mtx_unlock(&lun->lun_lock); 6103 6104 return (0); 6105} 6106 6107int 6108ctl_caching_sp_handler(struct ctl_scsiio *ctsio, 6109 struct ctl_page_index *page_index, uint8_t *page_ptr) 6110{ 6111 struct scsi_caching_page *current_cp, *saved_cp, *user_cp; 6112 struct ctl_lun *lun; 6113 int set_ua; 6114 uint32_t initidx; 6115 6116 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6117 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6118 set_ua = 0; 6119 6120 user_cp = (struct scsi_caching_page *)page_ptr; 6121 current_cp = (struct scsi_caching_page *) 6122 (page_index->page_data + (page_index->page_len * 6123 CTL_PAGE_CURRENT)); 6124 saved_cp = (struct scsi_caching_page *) 6125 (page_index->page_data + (page_index->page_len * 6126 CTL_PAGE_SAVED)); 6127 6128 mtx_lock(&lun->lun_lock); 6129 if ((current_cp->flags1 & (SCP_WCE | SCP_RCD)) != 6130 (user_cp->flags1 & (SCP_WCE | SCP_RCD))) { 6131 current_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6132 current_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6133 saved_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6134 saved_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6135 set_ua = 1; 6136 } 6137 if (set_ua != 0) { 6138 int i; 6139 /* 6140 * Let other initiators know that the mode 6141 * parameters for this LUN have changed. 6142 */ 6143 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6144 if (i == initidx) 6145 continue; 6146 6147 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6148 } 6149 } 6150 mtx_unlock(&lun->lun_lock); 6151 6152 return (0); 6153} 6154 6155int 6156ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 6157 struct ctl_page_index *page_index, 6158 uint8_t *page_ptr) 6159{ 6160 uint8_t *c; 6161 int i; 6162 6163 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 6164 ctl_time_io_secs = 6165 (c[0] << 8) | 6166 (c[1] << 0) | 6167 0; 6168 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 6169 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 6170 printf("page data:"); 6171 for (i=0; i<8; i++) 6172 printf(" %.2x",page_ptr[i]); 6173 printf("\n"); 6174 return (0); 6175} 6176 6177int 6178ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 6179 struct ctl_page_index *page_index, 6180 int pc) 6181{ 6182 struct copan_debugconf_subpage *page; 6183 6184 page = (struct copan_debugconf_subpage *)page_index->page_data + 6185 (page_index->page_len * pc); 6186 6187 switch (pc) { 6188 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6189 case SMS_PAGE_CTRL_DEFAULT >> 6: 6190 case SMS_PAGE_CTRL_SAVED >> 6: 6191 /* 6192 * We don't update the changable or default bits for this page. 6193 */ 6194 break; 6195 case SMS_PAGE_CTRL_CURRENT >> 6: 6196 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 6197 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 6198 break; 6199 default: 6200#ifdef NEEDTOPORT 6201 EPRINT(0, "Invalid PC %d!!", pc); 6202#endif /* NEEDTOPORT */ 6203 break; 6204 } 6205 return (0); 6206} 6207 6208 6209static int 6210ctl_do_mode_select(union ctl_io *io) 6211{ 6212 struct scsi_mode_page_header *page_header; 6213 struct ctl_page_index *page_index; 6214 struct ctl_scsiio *ctsio; 6215 int control_dev, page_len; 6216 int page_len_offset, page_len_size; 6217 union ctl_modepage_info *modepage_info; 6218 struct ctl_lun *lun; 6219 int *len_left, *len_used; 6220 int retval, i; 6221 6222 ctsio = &io->scsiio; 6223 page_index = NULL; 6224 page_len = 0; 6225 retval = CTL_RETVAL_COMPLETE; 6226 6227 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6228 6229 if (lun->be_lun->lun_type != T_DIRECT) 6230 control_dev = 1; 6231 else 6232 control_dev = 0; 6233 6234 modepage_info = (union ctl_modepage_info *) 6235 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6236 len_left = &modepage_info->header.len_left; 6237 len_used = &modepage_info->header.len_used; 6238 6239do_next_page: 6240 6241 page_header = (struct scsi_mode_page_header *) 6242 (ctsio->kern_data_ptr + *len_used); 6243 6244 if (*len_left == 0) { 6245 free(ctsio->kern_data_ptr, M_CTL); 6246 ctl_set_success(ctsio); 6247 ctl_done((union ctl_io *)ctsio); 6248 return (CTL_RETVAL_COMPLETE); 6249 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6250 6251 free(ctsio->kern_data_ptr, M_CTL); 6252 ctl_set_param_len_error(ctsio); 6253 ctl_done((union ctl_io *)ctsio); 6254 return (CTL_RETVAL_COMPLETE); 6255 6256 } else if ((page_header->page_code & SMPH_SPF) 6257 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6258 6259 free(ctsio->kern_data_ptr, M_CTL); 6260 ctl_set_param_len_error(ctsio); 6261 ctl_done((union ctl_io *)ctsio); 6262 return (CTL_RETVAL_COMPLETE); 6263 } 6264 6265 6266 /* 6267 * XXX KDM should we do something with the block descriptor? 6268 */ 6269 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6270 6271 if ((control_dev != 0) 6272 && (lun->mode_pages.index[i].page_flags & 6273 CTL_PAGE_FLAG_DISK_ONLY)) 6274 continue; 6275 6276 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 6277 (page_header->page_code & SMPH_PC_MASK)) 6278 continue; 6279 6280 /* 6281 * If neither page has a subpage code, then we've got a 6282 * match. 6283 */ 6284 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 6285 && ((page_header->page_code & SMPH_SPF) == 0)) { 6286 page_index = &lun->mode_pages.index[i]; 6287 page_len = page_header->page_length; 6288 break; 6289 } 6290 6291 /* 6292 * If both pages have subpages, then the subpage numbers 6293 * have to match. 6294 */ 6295 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 6296 && (page_header->page_code & SMPH_SPF)) { 6297 struct scsi_mode_page_header_sp *sph; 6298 6299 sph = (struct scsi_mode_page_header_sp *)page_header; 6300 6301 if (lun->mode_pages.index[i].subpage == 6302 sph->subpage) { 6303 page_index = &lun->mode_pages.index[i]; 6304 page_len = scsi_2btoul(sph->page_length); 6305 break; 6306 } 6307 } 6308 } 6309 6310 /* 6311 * If we couldn't find the page, or if we don't have a mode select 6312 * handler for it, send back an error to the user. 6313 */ 6314 if ((page_index == NULL) 6315 || (page_index->select_handler == NULL)) { 6316 ctl_set_invalid_field(ctsio, 6317 /*sks_valid*/ 1, 6318 /*command*/ 0, 6319 /*field*/ *len_used, 6320 /*bit_valid*/ 0, 6321 /*bit*/ 0); 6322 free(ctsio->kern_data_ptr, M_CTL); 6323 ctl_done((union ctl_io *)ctsio); 6324 return (CTL_RETVAL_COMPLETE); 6325 } 6326 6327 if (page_index->page_code & SMPH_SPF) { 6328 page_len_offset = 2; 6329 page_len_size = 2; 6330 } else { 6331 page_len_size = 1; 6332 page_len_offset = 1; 6333 } 6334 6335 /* 6336 * If the length the initiator gives us isn't the one we specify in 6337 * the mode page header, or if they didn't specify enough data in 6338 * the CDB to avoid truncating this page, kick out the request. 6339 */ 6340 if ((page_len != (page_index->page_len - page_len_offset - 6341 page_len_size)) 6342 || (*len_left < page_index->page_len)) { 6343 6344 6345 ctl_set_invalid_field(ctsio, 6346 /*sks_valid*/ 1, 6347 /*command*/ 0, 6348 /*field*/ *len_used + page_len_offset, 6349 /*bit_valid*/ 0, 6350 /*bit*/ 0); 6351 free(ctsio->kern_data_ptr, M_CTL); 6352 ctl_done((union ctl_io *)ctsio); 6353 return (CTL_RETVAL_COMPLETE); 6354 } 6355 6356 /* 6357 * Run through the mode page, checking to make sure that the bits 6358 * the user changed are actually legal for him to change. 6359 */ 6360 for (i = 0; i < page_index->page_len; i++) { 6361 uint8_t *user_byte, *change_mask, *current_byte; 6362 int bad_bit; 6363 int j; 6364 6365 user_byte = (uint8_t *)page_header + i; 6366 change_mask = page_index->page_data + 6367 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6368 current_byte = page_index->page_data + 6369 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6370 6371 /* 6372 * Check to see whether the user set any bits in this byte 6373 * that he is not allowed to set. 6374 */ 6375 if ((*user_byte & ~(*change_mask)) == 6376 (*current_byte & ~(*change_mask))) 6377 continue; 6378 6379 /* 6380 * Go through bit by bit to determine which one is illegal. 6381 */ 6382 bad_bit = 0; 6383 for (j = 7; j >= 0; j--) { 6384 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6385 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6386 bad_bit = i; 6387 break; 6388 } 6389 } 6390 ctl_set_invalid_field(ctsio, 6391 /*sks_valid*/ 1, 6392 /*command*/ 0, 6393 /*field*/ *len_used + i, 6394 /*bit_valid*/ 1, 6395 /*bit*/ bad_bit); 6396 free(ctsio->kern_data_ptr, M_CTL); 6397 ctl_done((union ctl_io *)ctsio); 6398 return (CTL_RETVAL_COMPLETE); 6399 } 6400 6401 /* 6402 * Decrement these before we call the page handler, since we may 6403 * end up getting called back one way or another before the handler 6404 * returns to this context. 6405 */ 6406 *len_left -= page_index->page_len; 6407 *len_used += page_index->page_len; 6408 6409 retval = page_index->select_handler(ctsio, page_index, 6410 (uint8_t *)page_header); 6411 6412 /* 6413 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6414 * wait until this queued command completes to finish processing 6415 * the mode page. If it returns anything other than 6416 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6417 * already set the sense information, freed the data pointer, and 6418 * completed the io for us. 6419 */ 6420 if (retval != CTL_RETVAL_COMPLETE) 6421 goto bailout_no_done; 6422 6423 /* 6424 * If the initiator sent us more than one page, parse the next one. 6425 */ 6426 if (*len_left > 0) 6427 goto do_next_page; 6428 6429 ctl_set_success(ctsio); 6430 free(ctsio->kern_data_ptr, M_CTL); 6431 ctl_done((union ctl_io *)ctsio); 6432 6433bailout_no_done: 6434 6435 return (CTL_RETVAL_COMPLETE); 6436 6437} 6438 6439int 6440ctl_mode_select(struct ctl_scsiio *ctsio) 6441{ 6442 int param_len, pf, sp; 6443 int header_size, bd_len; 6444 int len_left, len_used; 6445 struct ctl_page_index *page_index; 6446 struct ctl_lun *lun; 6447 int control_dev, page_len; 6448 union ctl_modepage_info *modepage_info; 6449 int retval; 6450 6451 pf = 0; 6452 sp = 0; 6453 page_len = 0; 6454 len_used = 0; 6455 len_left = 0; 6456 retval = 0; 6457 bd_len = 0; 6458 page_index = NULL; 6459 6460 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6461 6462 if (lun->be_lun->lun_type != T_DIRECT) 6463 control_dev = 1; 6464 else 6465 control_dev = 0; 6466 6467 switch (ctsio->cdb[0]) { 6468 case MODE_SELECT_6: { 6469 struct scsi_mode_select_6 *cdb; 6470 6471 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6472 6473 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6474 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6475 6476 param_len = cdb->length; 6477 header_size = sizeof(struct scsi_mode_header_6); 6478 break; 6479 } 6480 case MODE_SELECT_10: { 6481 struct scsi_mode_select_10 *cdb; 6482 6483 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6484 6485 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6486 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6487 6488 param_len = scsi_2btoul(cdb->length); 6489 header_size = sizeof(struct scsi_mode_header_10); 6490 break; 6491 } 6492 default: 6493 ctl_set_invalid_opcode(ctsio); 6494 ctl_done((union ctl_io *)ctsio); 6495 return (CTL_RETVAL_COMPLETE); 6496 break; /* NOTREACHED */ 6497 } 6498 6499 /* 6500 * From SPC-3: 6501 * "A parameter list length of zero indicates that the Data-Out Buffer 6502 * shall be empty. This condition shall not be considered as an error." 6503 */ 6504 if (param_len == 0) { 6505 ctl_set_success(ctsio); 6506 ctl_done((union ctl_io *)ctsio); 6507 return (CTL_RETVAL_COMPLETE); 6508 } 6509 6510 /* 6511 * Since we'll hit this the first time through, prior to 6512 * allocation, we don't need to free a data buffer here. 6513 */ 6514 if (param_len < header_size) { 6515 ctl_set_param_len_error(ctsio); 6516 ctl_done((union ctl_io *)ctsio); 6517 return (CTL_RETVAL_COMPLETE); 6518 } 6519 6520 /* 6521 * Allocate the data buffer and grab the user's data. In theory, 6522 * we shouldn't have to sanity check the parameter list length here 6523 * because the maximum size is 64K. We should be able to malloc 6524 * that much without too many problems. 6525 */ 6526 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6527 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6528 ctsio->kern_data_len = param_len; 6529 ctsio->kern_total_len = param_len; 6530 ctsio->kern_data_resid = 0; 6531 ctsio->kern_rel_offset = 0; 6532 ctsio->kern_sg_entries = 0; 6533 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6534 ctsio->be_move_done = ctl_config_move_done; 6535 ctl_datamove((union ctl_io *)ctsio); 6536 6537 return (CTL_RETVAL_COMPLETE); 6538 } 6539 6540 switch (ctsio->cdb[0]) { 6541 case MODE_SELECT_6: { 6542 struct scsi_mode_header_6 *mh6; 6543 6544 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6545 bd_len = mh6->blk_desc_len; 6546 break; 6547 } 6548 case MODE_SELECT_10: { 6549 struct scsi_mode_header_10 *mh10; 6550 6551 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6552 bd_len = scsi_2btoul(mh10->blk_desc_len); 6553 break; 6554 } 6555 default: 6556 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6557 break; 6558 } 6559 6560 if (param_len < (header_size + bd_len)) { 6561 free(ctsio->kern_data_ptr, M_CTL); 6562 ctl_set_param_len_error(ctsio); 6563 ctl_done((union ctl_io *)ctsio); 6564 return (CTL_RETVAL_COMPLETE); 6565 } 6566 6567 /* 6568 * Set the IO_CONT flag, so that if this I/O gets passed to 6569 * ctl_config_write_done(), it'll get passed back to 6570 * ctl_do_mode_select() for further processing, or completion if 6571 * we're all done. 6572 */ 6573 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6574 ctsio->io_cont = ctl_do_mode_select; 6575 6576 modepage_info = (union ctl_modepage_info *) 6577 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6578 6579 memset(modepage_info, 0, sizeof(*modepage_info)); 6580 6581 len_left = param_len - header_size - bd_len; 6582 len_used = header_size + bd_len; 6583 6584 modepage_info->header.len_left = len_left; 6585 modepage_info->header.len_used = len_used; 6586 6587 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6588} 6589 6590int 6591ctl_mode_sense(struct ctl_scsiio *ctsio) 6592{ 6593 struct ctl_lun *lun; 6594 int pc, page_code, dbd, llba, subpage; 6595 int alloc_len, page_len, header_len, total_len; 6596 struct scsi_mode_block_descr *block_desc; 6597 struct ctl_page_index *page_index; 6598 int control_dev; 6599 6600 dbd = 0; 6601 llba = 0; 6602 block_desc = NULL; 6603 page_index = NULL; 6604 6605 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6606 6607 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6608 6609 if (lun->be_lun->lun_type != T_DIRECT) 6610 control_dev = 1; 6611 else 6612 control_dev = 0; 6613 6614 switch (ctsio->cdb[0]) { 6615 case MODE_SENSE_6: { 6616 struct scsi_mode_sense_6 *cdb; 6617 6618 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6619 6620 header_len = sizeof(struct scsi_mode_hdr_6); 6621 if (cdb->byte2 & SMS_DBD) 6622 dbd = 1; 6623 else 6624 header_len += sizeof(struct scsi_mode_block_descr); 6625 6626 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6627 page_code = cdb->page & SMS_PAGE_CODE; 6628 subpage = cdb->subpage; 6629 alloc_len = cdb->length; 6630 break; 6631 } 6632 case MODE_SENSE_10: { 6633 struct scsi_mode_sense_10 *cdb; 6634 6635 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6636 6637 header_len = sizeof(struct scsi_mode_hdr_10); 6638 6639 if (cdb->byte2 & SMS_DBD) 6640 dbd = 1; 6641 else 6642 header_len += sizeof(struct scsi_mode_block_descr); 6643 if (cdb->byte2 & SMS10_LLBAA) 6644 llba = 1; 6645 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6646 page_code = cdb->page & SMS_PAGE_CODE; 6647 subpage = cdb->subpage; 6648 alloc_len = scsi_2btoul(cdb->length); 6649 break; 6650 } 6651 default: 6652 ctl_set_invalid_opcode(ctsio); 6653 ctl_done((union ctl_io *)ctsio); 6654 return (CTL_RETVAL_COMPLETE); 6655 break; /* NOTREACHED */ 6656 } 6657 6658 /* 6659 * We have to make a first pass through to calculate the size of 6660 * the pages that match the user's query. Then we allocate enough 6661 * memory to hold it, and actually copy the data into the buffer. 6662 */ 6663 switch (page_code) { 6664 case SMS_ALL_PAGES_PAGE: { 6665 int i; 6666 6667 page_len = 0; 6668 6669 /* 6670 * At the moment, values other than 0 and 0xff here are 6671 * reserved according to SPC-3. 6672 */ 6673 if ((subpage != SMS_SUBPAGE_PAGE_0) 6674 && (subpage != SMS_SUBPAGE_ALL)) { 6675 ctl_set_invalid_field(ctsio, 6676 /*sks_valid*/ 1, 6677 /*command*/ 1, 6678 /*field*/ 3, 6679 /*bit_valid*/ 0, 6680 /*bit*/ 0); 6681 ctl_done((union ctl_io *)ctsio); 6682 return (CTL_RETVAL_COMPLETE); 6683 } 6684 6685 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6686 if ((control_dev != 0) 6687 && (lun->mode_pages.index[i].page_flags & 6688 CTL_PAGE_FLAG_DISK_ONLY)) 6689 continue; 6690 6691 /* 6692 * We don't use this subpage if the user didn't 6693 * request all subpages. 6694 */ 6695 if ((lun->mode_pages.index[i].subpage != 0) 6696 && (subpage == SMS_SUBPAGE_PAGE_0)) 6697 continue; 6698 6699#if 0 6700 printf("found page %#x len %d\n", 6701 lun->mode_pages.index[i].page_code & 6702 SMPH_PC_MASK, 6703 lun->mode_pages.index[i].page_len); 6704#endif 6705 page_len += lun->mode_pages.index[i].page_len; 6706 } 6707 break; 6708 } 6709 default: { 6710 int i; 6711 6712 page_len = 0; 6713 6714 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6715 /* Look for the right page code */ 6716 if ((lun->mode_pages.index[i].page_code & 6717 SMPH_PC_MASK) != page_code) 6718 continue; 6719 6720 /* Look for the right subpage or the subpage wildcard*/ 6721 if ((lun->mode_pages.index[i].subpage != subpage) 6722 && (subpage != SMS_SUBPAGE_ALL)) 6723 continue; 6724 6725 /* Make sure the page is supported for this dev type */ 6726 if ((control_dev != 0) 6727 && (lun->mode_pages.index[i].page_flags & 6728 CTL_PAGE_FLAG_DISK_ONLY)) 6729 continue; 6730 6731#if 0 6732 printf("found page %#x len %d\n", 6733 lun->mode_pages.index[i].page_code & 6734 SMPH_PC_MASK, 6735 lun->mode_pages.index[i].page_len); 6736#endif 6737 6738 page_len += lun->mode_pages.index[i].page_len; 6739 } 6740 6741 if (page_len == 0) { 6742 ctl_set_invalid_field(ctsio, 6743 /*sks_valid*/ 1, 6744 /*command*/ 1, 6745 /*field*/ 2, 6746 /*bit_valid*/ 1, 6747 /*bit*/ 5); 6748 ctl_done((union ctl_io *)ctsio); 6749 return (CTL_RETVAL_COMPLETE); 6750 } 6751 break; 6752 } 6753 } 6754 6755 total_len = header_len + page_len; 6756#if 0 6757 printf("header_len = %d, page_len = %d, total_len = %d\n", 6758 header_len, page_len, total_len); 6759#endif 6760 6761 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6762 ctsio->kern_sg_entries = 0; 6763 ctsio->kern_data_resid = 0; 6764 ctsio->kern_rel_offset = 0; 6765 if (total_len < alloc_len) { 6766 ctsio->residual = alloc_len - total_len; 6767 ctsio->kern_data_len = total_len; 6768 ctsio->kern_total_len = total_len; 6769 } else { 6770 ctsio->residual = 0; 6771 ctsio->kern_data_len = alloc_len; 6772 ctsio->kern_total_len = alloc_len; 6773 } 6774 6775 switch (ctsio->cdb[0]) { 6776 case MODE_SENSE_6: { 6777 struct scsi_mode_hdr_6 *header; 6778 6779 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6780 6781 header->datalen = ctl_min(total_len - 1, 254); 6782 if (control_dev == 0) { 6783 header->dev_specific = 0x10; /* DPOFUA */ 6784 if ((lun->flags & CTL_LUN_READONLY) || 6785 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6786 .eca_and_aen & SCP_SWP) != 0) 6787 header->dev_specific |= 0x80; /* WP */ 6788 } 6789 if (dbd) 6790 header->block_descr_len = 0; 6791 else 6792 header->block_descr_len = 6793 sizeof(struct scsi_mode_block_descr); 6794 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6795 break; 6796 } 6797 case MODE_SENSE_10: { 6798 struct scsi_mode_hdr_10 *header; 6799 int datalen; 6800 6801 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6802 6803 datalen = ctl_min(total_len - 2, 65533); 6804 scsi_ulto2b(datalen, header->datalen); 6805 if (control_dev == 0) { 6806 header->dev_specific = 0x10; /* DPOFUA */ 6807 if ((lun->flags & CTL_LUN_READONLY) || 6808 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6809 .eca_and_aen & SCP_SWP) != 0) 6810 header->dev_specific |= 0x80; /* WP */ 6811 } 6812 if (dbd) 6813 scsi_ulto2b(0, header->block_descr_len); 6814 else 6815 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 6816 header->block_descr_len); 6817 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6818 break; 6819 } 6820 default: 6821 panic("invalid CDB type %#x", ctsio->cdb[0]); 6822 break; /* NOTREACHED */ 6823 } 6824 6825 /* 6826 * If we've got a disk, use its blocksize in the block 6827 * descriptor. Otherwise, just set it to 0. 6828 */ 6829 if (dbd == 0) { 6830 if (control_dev == 0) 6831 scsi_ulto3b(lun->be_lun->blocksize, 6832 block_desc->block_len); 6833 else 6834 scsi_ulto3b(0, block_desc->block_len); 6835 } 6836 6837 switch (page_code) { 6838 case SMS_ALL_PAGES_PAGE: { 6839 int i, data_used; 6840 6841 data_used = header_len; 6842 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6843 struct ctl_page_index *page_index; 6844 6845 page_index = &lun->mode_pages.index[i]; 6846 6847 if ((control_dev != 0) 6848 && (page_index->page_flags & 6849 CTL_PAGE_FLAG_DISK_ONLY)) 6850 continue; 6851 6852 /* 6853 * We don't use this subpage if the user didn't 6854 * request all subpages. We already checked (above) 6855 * to make sure the user only specified a subpage 6856 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 6857 */ 6858 if ((page_index->subpage != 0) 6859 && (subpage == SMS_SUBPAGE_PAGE_0)) 6860 continue; 6861 6862 /* 6863 * Call the handler, if it exists, to update the 6864 * page to the latest values. 6865 */ 6866 if (page_index->sense_handler != NULL) 6867 page_index->sense_handler(ctsio, page_index,pc); 6868 6869 memcpy(ctsio->kern_data_ptr + data_used, 6870 page_index->page_data + 6871 (page_index->page_len * pc), 6872 page_index->page_len); 6873 data_used += page_index->page_len; 6874 } 6875 break; 6876 } 6877 default: { 6878 int i, data_used; 6879 6880 data_used = header_len; 6881 6882 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6883 struct ctl_page_index *page_index; 6884 6885 page_index = &lun->mode_pages.index[i]; 6886 6887 /* Look for the right page code */ 6888 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6889 continue; 6890 6891 /* Look for the right subpage or the subpage wildcard*/ 6892 if ((page_index->subpage != subpage) 6893 && (subpage != SMS_SUBPAGE_ALL)) 6894 continue; 6895 6896 /* Make sure the page is supported for this dev type */ 6897 if ((control_dev != 0) 6898 && (page_index->page_flags & 6899 CTL_PAGE_FLAG_DISK_ONLY)) 6900 continue; 6901 6902 /* 6903 * Call the handler, if it exists, to update the 6904 * page to the latest values. 6905 */ 6906 if (page_index->sense_handler != NULL) 6907 page_index->sense_handler(ctsio, page_index,pc); 6908 6909 memcpy(ctsio->kern_data_ptr + data_used, 6910 page_index->page_data + 6911 (page_index->page_len * pc), 6912 page_index->page_len); 6913 data_used += page_index->page_len; 6914 } 6915 break; 6916 } 6917 } 6918 6919 ctl_set_success(ctsio); 6920 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6921 ctsio->be_move_done = ctl_config_move_done; 6922 ctl_datamove((union ctl_io *)ctsio); 6923 return (CTL_RETVAL_COMPLETE); 6924} 6925 6926int 6927ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio, 6928 struct ctl_page_index *page_index, 6929 int pc) 6930{ 6931 struct ctl_lun *lun; 6932 struct scsi_log_param_header *phdr; 6933 uint8_t *data; 6934 uint64_t val; 6935 6936 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6937 data = page_index->page_data; 6938 6939 if (lun->backend->lun_attr != NULL && 6940 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksavail")) 6941 != UINT64_MAX) { 6942 phdr = (struct scsi_log_param_header *)data; 6943 scsi_ulto2b(0x0001, phdr->param_code); 6944 phdr->param_control = SLP_LBIN | SLP_LP; 6945 phdr->param_len = 8; 6946 data = (uint8_t *)(phdr + 1); 6947 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6948 data[4] = 0x01; /* per-LUN */ 6949 data += phdr->param_len; 6950 } 6951 6952 if (lun->backend->lun_attr != NULL && 6953 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksused")) 6954 != UINT64_MAX) { 6955 phdr = (struct scsi_log_param_header *)data; 6956 scsi_ulto2b(0x0002, phdr->param_code); 6957 phdr->param_control = SLP_LBIN | SLP_LP; 6958 phdr->param_len = 8; 6959 data = (uint8_t *)(phdr + 1); 6960 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6961 data[4] = 0x02; /* per-pool */ 6962 data += phdr->param_len; 6963 } 6964 6965 if (lun->backend->lun_attr != NULL && 6966 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksavail")) 6967 != UINT64_MAX) { 6968 phdr = (struct scsi_log_param_header *)data; 6969 scsi_ulto2b(0x00f1, phdr->param_code); 6970 phdr->param_control = SLP_LBIN | SLP_LP; 6971 phdr->param_len = 8; 6972 data = (uint8_t *)(phdr + 1); 6973 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6974 data[4] = 0x02; /* per-pool */ 6975 data += phdr->param_len; 6976 } 6977 6978 if (lun->backend->lun_attr != NULL && 6979 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksused")) 6980 != UINT64_MAX) { 6981 phdr = (struct scsi_log_param_header *)data; 6982 scsi_ulto2b(0x00f2, phdr->param_code); 6983 phdr->param_control = SLP_LBIN | SLP_LP; 6984 phdr->param_len = 8; 6985 data = (uint8_t *)(phdr + 1); 6986 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6987 data[4] = 0x02; /* per-pool */ 6988 data += phdr->param_len; 6989 } 6990 6991 page_index->page_len = data - page_index->page_data; 6992 return (0); 6993} 6994 6995int 6996ctl_log_sense(struct ctl_scsiio *ctsio) 6997{ 6998 struct ctl_lun *lun; 6999 int i, pc, page_code, subpage; 7000 int alloc_len, total_len; 7001 struct ctl_page_index *page_index; 7002 struct scsi_log_sense *cdb; 7003 struct scsi_log_header *header; 7004 7005 CTL_DEBUG_PRINT(("ctl_log_sense\n")); 7006 7007 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7008 cdb = (struct scsi_log_sense *)ctsio->cdb; 7009 pc = (cdb->page & SLS_PAGE_CTRL_MASK) >> 6; 7010 page_code = cdb->page & SLS_PAGE_CODE; 7011 subpage = cdb->subpage; 7012 alloc_len = scsi_2btoul(cdb->length); 7013 7014 page_index = NULL; 7015 for (i = 0; i < CTL_NUM_LOG_PAGES; i++) { 7016 page_index = &lun->log_pages.index[i]; 7017 7018 /* Look for the right page code */ 7019 if ((page_index->page_code & SL_PAGE_CODE) != page_code) 7020 continue; 7021 7022 /* Look for the right subpage or the subpage wildcard*/ 7023 if (page_index->subpage != subpage) 7024 continue; 7025 7026 break; 7027 } 7028 if (i >= CTL_NUM_LOG_PAGES) { 7029 ctl_set_invalid_field(ctsio, 7030 /*sks_valid*/ 1, 7031 /*command*/ 1, 7032 /*field*/ 2, 7033 /*bit_valid*/ 0, 7034 /*bit*/ 0); 7035 ctl_done((union ctl_io *)ctsio); 7036 return (CTL_RETVAL_COMPLETE); 7037 } 7038 7039 total_len = sizeof(struct scsi_log_header) + page_index->page_len; 7040 7041 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7042 ctsio->kern_sg_entries = 0; 7043 ctsio->kern_data_resid = 0; 7044 ctsio->kern_rel_offset = 0; 7045 if (total_len < alloc_len) { 7046 ctsio->residual = alloc_len - total_len; 7047 ctsio->kern_data_len = total_len; 7048 ctsio->kern_total_len = total_len; 7049 } else { 7050 ctsio->residual = 0; 7051 ctsio->kern_data_len = alloc_len; 7052 ctsio->kern_total_len = alloc_len; 7053 } 7054 7055 header = (struct scsi_log_header *)ctsio->kern_data_ptr; 7056 header->page = page_index->page_code; 7057 if (page_index->subpage) { 7058 header->page |= SL_SPF; 7059 header->subpage = page_index->subpage; 7060 } 7061 scsi_ulto2b(page_index->page_len, header->datalen); 7062 7063 /* 7064 * Call the handler, if it exists, to update the 7065 * page to the latest values. 7066 */ 7067 if (page_index->sense_handler != NULL) 7068 page_index->sense_handler(ctsio, page_index, pc); 7069 7070 memcpy(header + 1, page_index->page_data, page_index->page_len); 7071 7072 ctl_set_success(ctsio); 7073 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7074 ctsio->be_move_done = ctl_config_move_done; 7075 ctl_datamove((union ctl_io *)ctsio); 7076 return (CTL_RETVAL_COMPLETE); 7077} 7078 7079int 7080ctl_read_capacity(struct ctl_scsiio *ctsio) 7081{ 7082 struct scsi_read_capacity *cdb; 7083 struct scsi_read_capacity_data *data; 7084 struct ctl_lun *lun; 7085 uint32_t lba; 7086 7087 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 7088 7089 cdb = (struct scsi_read_capacity *)ctsio->cdb; 7090 7091 lba = scsi_4btoul(cdb->addr); 7092 if (((cdb->pmi & SRC_PMI) == 0) 7093 && (lba != 0)) { 7094 ctl_set_invalid_field(/*ctsio*/ ctsio, 7095 /*sks_valid*/ 1, 7096 /*command*/ 1, 7097 /*field*/ 2, 7098 /*bit_valid*/ 0, 7099 /*bit*/ 0); 7100 ctl_done((union ctl_io *)ctsio); 7101 return (CTL_RETVAL_COMPLETE); 7102 } 7103 7104 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7105 7106 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7107 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 7108 ctsio->residual = 0; 7109 ctsio->kern_data_len = sizeof(*data); 7110 ctsio->kern_total_len = sizeof(*data); 7111 ctsio->kern_data_resid = 0; 7112 ctsio->kern_rel_offset = 0; 7113 ctsio->kern_sg_entries = 0; 7114 7115 /* 7116 * If the maximum LBA is greater than 0xfffffffe, the user must 7117 * issue a SERVICE ACTION IN (16) command, with the read capacity 7118 * serivce action set. 7119 */ 7120 if (lun->be_lun->maxlba > 0xfffffffe) 7121 scsi_ulto4b(0xffffffff, data->addr); 7122 else 7123 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 7124 7125 /* 7126 * XXX KDM this may not be 512 bytes... 7127 */ 7128 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7129 7130 ctl_set_success(ctsio); 7131 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7132 ctsio->be_move_done = ctl_config_move_done; 7133 ctl_datamove((union ctl_io *)ctsio); 7134 return (CTL_RETVAL_COMPLETE); 7135} 7136 7137int 7138ctl_read_capacity_16(struct ctl_scsiio *ctsio) 7139{ 7140 struct scsi_read_capacity_16 *cdb; 7141 struct scsi_read_capacity_data_long *data; 7142 struct ctl_lun *lun; 7143 uint64_t lba; 7144 uint32_t alloc_len; 7145 7146 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 7147 7148 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 7149 7150 alloc_len = scsi_4btoul(cdb->alloc_len); 7151 lba = scsi_8btou64(cdb->addr); 7152 7153 if ((cdb->reladr & SRC16_PMI) 7154 && (lba != 0)) { 7155 ctl_set_invalid_field(/*ctsio*/ ctsio, 7156 /*sks_valid*/ 1, 7157 /*command*/ 1, 7158 /*field*/ 2, 7159 /*bit_valid*/ 0, 7160 /*bit*/ 0); 7161 ctl_done((union ctl_io *)ctsio); 7162 return (CTL_RETVAL_COMPLETE); 7163 } 7164 7165 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7166 7167 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7168 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 7169 7170 if (sizeof(*data) < alloc_len) { 7171 ctsio->residual = alloc_len - sizeof(*data); 7172 ctsio->kern_data_len = sizeof(*data); 7173 ctsio->kern_total_len = sizeof(*data); 7174 } else { 7175 ctsio->residual = 0; 7176 ctsio->kern_data_len = alloc_len; 7177 ctsio->kern_total_len = alloc_len; 7178 } 7179 ctsio->kern_data_resid = 0; 7180 ctsio->kern_rel_offset = 0; 7181 ctsio->kern_sg_entries = 0; 7182 7183 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7184 /* XXX KDM this may not be 512 bytes... */ 7185 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7186 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7187 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7188 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7189 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 7190 7191 ctl_set_success(ctsio); 7192 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7193 ctsio->be_move_done = ctl_config_move_done; 7194 ctl_datamove((union ctl_io *)ctsio); 7195 return (CTL_RETVAL_COMPLETE); 7196} 7197 7198int 7199ctl_read_defect(struct ctl_scsiio *ctsio) 7200{ 7201 struct scsi_read_defect_data_10 *ccb10; 7202 struct scsi_read_defect_data_12 *ccb12; 7203 struct scsi_read_defect_data_hdr_10 *data10; 7204 struct scsi_read_defect_data_hdr_12 *data12; 7205 uint32_t alloc_len, data_len; 7206 uint8_t format; 7207 7208 CTL_DEBUG_PRINT(("ctl_read_defect\n")); 7209 7210 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7211 ccb10 = (struct scsi_read_defect_data_10 *)&ctsio->cdb; 7212 format = ccb10->format; 7213 alloc_len = scsi_2btoul(ccb10->alloc_length); 7214 data_len = sizeof(*data10); 7215 } else { 7216 ccb12 = (struct scsi_read_defect_data_12 *)&ctsio->cdb; 7217 format = ccb12->format; 7218 alloc_len = scsi_4btoul(ccb12->alloc_length); 7219 data_len = sizeof(*data12); 7220 } 7221 if (alloc_len == 0) { 7222 ctl_set_success(ctsio); 7223 ctl_done((union ctl_io *)ctsio); 7224 return (CTL_RETVAL_COMPLETE); 7225 } 7226 7227 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 7228 if (data_len < alloc_len) { 7229 ctsio->residual = alloc_len - data_len; 7230 ctsio->kern_data_len = data_len; 7231 ctsio->kern_total_len = data_len; 7232 } else { 7233 ctsio->residual = 0; 7234 ctsio->kern_data_len = alloc_len; 7235 ctsio->kern_total_len = alloc_len; 7236 } 7237 ctsio->kern_data_resid = 0; 7238 ctsio->kern_rel_offset = 0; 7239 ctsio->kern_sg_entries = 0; 7240 7241 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7242 data10 = (struct scsi_read_defect_data_hdr_10 *) 7243 ctsio->kern_data_ptr; 7244 data10->format = format; 7245 scsi_ulto2b(0, data10->length); 7246 } else { 7247 data12 = (struct scsi_read_defect_data_hdr_12 *) 7248 ctsio->kern_data_ptr; 7249 data12->format = format; 7250 scsi_ulto2b(0, data12->generation); 7251 scsi_ulto4b(0, data12->length); 7252 } 7253 7254 ctl_set_success(ctsio); 7255 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7256 ctsio->be_move_done = ctl_config_move_done; 7257 ctl_datamove((union ctl_io *)ctsio); 7258 return (CTL_RETVAL_COMPLETE); 7259} 7260 7261int 7262ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7263{ 7264 struct scsi_maintenance_in *cdb; 7265 int retval; 7266 int alloc_len, ext, total_len = 0, g, p, pc, pg, gs, os; 7267 int num_target_port_groups, num_target_ports; 7268 struct ctl_lun *lun; 7269 struct ctl_softc *softc; 7270 struct ctl_port *port; 7271 struct scsi_target_group_data *rtg_ptr; 7272 struct scsi_target_group_data_extended *rtg_ext_ptr; 7273 struct scsi_target_port_group_descriptor *tpg_desc; 7274 7275 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7276 7277 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7278 softc = control_softc; 7279 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7280 7281 retval = CTL_RETVAL_COMPLETE; 7282 7283 switch (cdb->byte2 & STG_PDF_MASK) { 7284 case STG_PDF_LENGTH: 7285 ext = 0; 7286 break; 7287 case STG_PDF_EXTENDED: 7288 ext = 1; 7289 break; 7290 default: 7291 ctl_set_invalid_field(/*ctsio*/ ctsio, 7292 /*sks_valid*/ 1, 7293 /*command*/ 1, 7294 /*field*/ 2, 7295 /*bit_valid*/ 1, 7296 /*bit*/ 5); 7297 ctl_done((union ctl_io *)ctsio); 7298 return(retval); 7299 } 7300 7301 if (softc->is_single) 7302 num_target_port_groups = 1; 7303 else 7304 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7305 num_target_ports = 0; 7306 mtx_lock(&softc->ctl_lock); 7307 STAILQ_FOREACH(port, &softc->port_list, links) { 7308 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7309 continue; 7310 if (ctl_map_lun_back(port->targ_port, lun->lun) >= CTL_MAX_LUNS) 7311 continue; 7312 num_target_ports++; 7313 } 7314 mtx_unlock(&softc->ctl_lock); 7315 7316 if (ext) 7317 total_len = sizeof(struct scsi_target_group_data_extended); 7318 else 7319 total_len = sizeof(struct scsi_target_group_data); 7320 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7321 num_target_port_groups + 7322 sizeof(struct scsi_target_port_descriptor) * 7323 num_target_ports * num_target_port_groups; 7324 7325 alloc_len = scsi_4btoul(cdb->length); 7326 7327 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7328 7329 ctsio->kern_sg_entries = 0; 7330 7331 if (total_len < alloc_len) { 7332 ctsio->residual = alloc_len - total_len; 7333 ctsio->kern_data_len = total_len; 7334 ctsio->kern_total_len = total_len; 7335 } else { 7336 ctsio->residual = 0; 7337 ctsio->kern_data_len = alloc_len; 7338 ctsio->kern_total_len = alloc_len; 7339 } 7340 ctsio->kern_data_resid = 0; 7341 ctsio->kern_rel_offset = 0; 7342 7343 if (ext) { 7344 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7345 ctsio->kern_data_ptr; 7346 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7347 rtg_ext_ptr->format_type = 0x10; 7348 rtg_ext_ptr->implicit_transition_time = 0; 7349 tpg_desc = &rtg_ext_ptr->groups[0]; 7350 } else { 7351 rtg_ptr = (struct scsi_target_group_data *) 7352 ctsio->kern_data_ptr; 7353 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7354 tpg_desc = &rtg_ptr->groups[0]; 7355 } 7356 7357 mtx_lock(&softc->ctl_lock); 7358 pg = softc->port_offset / CTL_MAX_PORTS; 7359 if (softc->flags & CTL_FLAG_ACTIVE_SHELF) { 7360 if (softc->ha_mode == CTL_HA_MODE_ACT_STBY) { 7361 gs = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7362 os = TPG_ASYMMETRIC_ACCESS_STANDBY; 7363 } else if (lun->flags & CTL_LUN_PRIMARY_SC) { 7364 gs = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7365 os = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7366 } else { 7367 gs = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7368 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7369 } 7370 } else { 7371 gs = TPG_ASYMMETRIC_ACCESS_STANDBY; 7372 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7373 } 7374 for (g = 0; g < num_target_port_groups; g++) { 7375 tpg_desc->pref_state = (g == pg) ? gs : os; 7376 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP; 7377 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7378 tpg_desc->status = TPG_IMPLICIT; 7379 pc = 0; 7380 STAILQ_FOREACH(port, &softc->port_list, links) { 7381 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7382 continue; 7383 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 7384 CTL_MAX_LUNS) 7385 continue; 7386 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 7387 scsi_ulto2b(p, tpg_desc->descriptors[pc]. 7388 relative_target_port_identifier); 7389 pc++; 7390 } 7391 tpg_desc->target_port_count = pc; 7392 tpg_desc = (struct scsi_target_port_group_descriptor *) 7393 &tpg_desc->descriptors[pc]; 7394 } 7395 mtx_unlock(&softc->ctl_lock); 7396 7397 ctl_set_success(ctsio); 7398 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7399 ctsio->be_move_done = ctl_config_move_done; 7400 ctl_datamove((union ctl_io *)ctsio); 7401 return(retval); 7402} 7403 7404int 7405ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7406{ 7407 struct ctl_lun *lun; 7408 struct scsi_report_supported_opcodes *cdb; 7409 const struct ctl_cmd_entry *entry, *sentry; 7410 struct scsi_report_supported_opcodes_all *all; 7411 struct scsi_report_supported_opcodes_descr *descr; 7412 struct scsi_report_supported_opcodes_one *one; 7413 int retval; 7414 int alloc_len, total_len; 7415 int opcode, service_action, i, j, num; 7416 7417 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7418 7419 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7420 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7421 7422 retval = CTL_RETVAL_COMPLETE; 7423 7424 opcode = cdb->requested_opcode; 7425 service_action = scsi_2btoul(cdb->requested_service_action); 7426 switch (cdb->options & RSO_OPTIONS_MASK) { 7427 case RSO_OPTIONS_ALL: 7428 num = 0; 7429 for (i = 0; i < 256; i++) { 7430 entry = &ctl_cmd_table[i]; 7431 if (entry->flags & CTL_CMD_FLAG_SA5) { 7432 for (j = 0; j < 32; j++) { 7433 sentry = &((const struct ctl_cmd_entry *) 7434 entry->execute)[j]; 7435 if (ctl_cmd_applicable( 7436 lun->be_lun->lun_type, sentry)) 7437 num++; 7438 } 7439 } else { 7440 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7441 entry)) 7442 num++; 7443 } 7444 } 7445 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7446 num * sizeof(struct scsi_report_supported_opcodes_descr); 7447 break; 7448 case RSO_OPTIONS_OC: 7449 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7450 ctl_set_invalid_field(/*ctsio*/ ctsio, 7451 /*sks_valid*/ 1, 7452 /*command*/ 1, 7453 /*field*/ 2, 7454 /*bit_valid*/ 1, 7455 /*bit*/ 2); 7456 ctl_done((union ctl_io *)ctsio); 7457 return (CTL_RETVAL_COMPLETE); 7458 } 7459 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7460 break; 7461 case RSO_OPTIONS_OC_SA: 7462 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7463 service_action >= 32) { 7464 ctl_set_invalid_field(/*ctsio*/ ctsio, 7465 /*sks_valid*/ 1, 7466 /*command*/ 1, 7467 /*field*/ 2, 7468 /*bit_valid*/ 1, 7469 /*bit*/ 2); 7470 ctl_done((union ctl_io *)ctsio); 7471 return (CTL_RETVAL_COMPLETE); 7472 } 7473 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7474 break; 7475 default: 7476 ctl_set_invalid_field(/*ctsio*/ ctsio, 7477 /*sks_valid*/ 1, 7478 /*command*/ 1, 7479 /*field*/ 2, 7480 /*bit_valid*/ 1, 7481 /*bit*/ 2); 7482 ctl_done((union ctl_io *)ctsio); 7483 return (CTL_RETVAL_COMPLETE); 7484 } 7485 7486 alloc_len = scsi_4btoul(cdb->length); 7487 7488 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7489 7490 ctsio->kern_sg_entries = 0; 7491 7492 if (total_len < alloc_len) { 7493 ctsio->residual = alloc_len - total_len; 7494 ctsio->kern_data_len = total_len; 7495 ctsio->kern_total_len = total_len; 7496 } else { 7497 ctsio->residual = 0; 7498 ctsio->kern_data_len = alloc_len; 7499 ctsio->kern_total_len = alloc_len; 7500 } 7501 ctsio->kern_data_resid = 0; 7502 ctsio->kern_rel_offset = 0; 7503 7504 switch (cdb->options & RSO_OPTIONS_MASK) { 7505 case RSO_OPTIONS_ALL: 7506 all = (struct scsi_report_supported_opcodes_all *) 7507 ctsio->kern_data_ptr; 7508 num = 0; 7509 for (i = 0; i < 256; i++) { 7510 entry = &ctl_cmd_table[i]; 7511 if (entry->flags & CTL_CMD_FLAG_SA5) { 7512 for (j = 0; j < 32; j++) { 7513 sentry = &((const struct ctl_cmd_entry *) 7514 entry->execute)[j]; 7515 if (!ctl_cmd_applicable( 7516 lun->be_lun->lun_type, sentry)) 7517 continue; 7518 descr = &all->descr[num++]; 7519 descr->opcode = i; 7520 scsi_ulto2b(j, descr->service_action); 7521 descr->flags = RSO_SERVACTV; 7522 scsi_ulto2b(sentry->length, 7523 descr->cdb_length); 7524 } 7525 } else { 7526 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7527 entry)) 7528 continue; 7529 descr = &all->descr[num++]; 7530 descr->opcode = i; 7531 scsi_ulto2b(0, descr->service_action); 7532 descr->flags = 0; 7533 scsi_ulto2b(entry->length, descr->cdb_length); 7534 } 7535 } 7536 scsi_ulto4b( 7537 num * sizeof(struct scsi_report_supported_opcodes_descr), 7538 all->length); 7539 break; 7540 case RSO_OPTIONS_OC: 7541 one = (struct scsi_report_supported_opcodes_one *) 7542 ctsio->kern_data_ptr; 7543 entry = &ctl_cmd_table[opcode]; 7544 goto fill_one; 7545 case RSO_OPTIONS_OC_SA: 7546 one = (struct scsi_report_supported_opcodes_one *) 7547 ctsio->kern_data_ptr; 7548 entry = &ctl_cmd_table[opcode]; 7549 entry = &((const struct ctl_cmd_entry *) 7550 entry->execute)[service_action]; 7551fill_one: 7552 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7553 one->support = 3; 7554 scsi_ulto2b(entry->length, one->cdb_length); 7555 one->cdb_usage[0] = opcode; 7556 memcpy(&one->cdb_usage[1], entry->usage, 7557 entry->length - 1); 7558 } else 7559 one->support = 1; 7560 break; 7561 } 7562 7563 ctl_set_success(ctsio); 7564 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7565 ctsio->be_move_done = ctl_config_move_done; 7566 ctl_datamove((union ctl_io *)ctsio); 7567 return(retval); 7568} 7569 7570int 7571ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7572{ 7573 struct scsi_report_supported_tmf *cdb; 7574 struct scsi_report_supported_tmf_data *data; 7575 int retval; 7576 int alloc_len, total_len; 7577 7578 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7579 7580 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7581 7582 retval = CTL_RETVAL_COMPLETE; 7583 7584 total_len = sizeof(struct scsi_report_supported_tmf_data); 7585 alloc_len = scsi_4btoul(cdb->length); 7586 7587 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7588 7589 ctsio->kern_sg_entries = 0; 7590 7591 if (total_len < alloc_len) { 7592 ctsio->residual = alloc_len - total_len; 7593 ctsio->kern_data_len = total_len; 7594 ctsio->kern_total_len = total_len; 7595 } else { 7596 ctsio->residual = 0; 7597 ctsio->kern_data_len = alloc_len; 7598 ctsio->kern_total_len = alloc_len; 7599 } 7600 ctsio->kern_data_resid = 0; 7601 ctsio->kern_rel_offset = 0; 7602 7603 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7604 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_TRS; 7605 data->byte2 |= RST_ITNRS; 7606 7607 ctl_set_success(ctsio); 7608 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7609 ctsio->be_move_done = ctl_config_move_done; 7610 ctl_datamove((union ctl_io *)ctsio); 7611 return (retval); 7612} 7613 7614int 7615ctl_report_timestamp(struct ctl_scsiio *ctsio) 7616{ 7617 struct scsi_report_timestamp *cdb; 7618 struct scsi_report_timestamp_data *data; 7619 struct timeval tv; 7620 int64_t timestamp; 7621 int retval; 7622 int alloc_len, total_len; 7623 7624 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7625 7626 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7627 7628 retval = CTL_RETVAL_COMPLETE; 7629 7630 total_len = sizeof(struct scsi_report_timestamp_data); 7631 alloc_len = scsi_4btoul(cdb->length); 7632 7633 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7634 7635 ctsio->kern_sg_entries = 0; 7636 7637 if (total_len < alloc_len) { 7638 ctsio->residual = alloc_len - total_len; 7639 ctsio->kern_data_len = total_len; 7640 ctsio->kern_total_len = total_len; 7641 } else { 7642 ctsio->residual = 0; 7643 ctsio->kern_data_len = alloc_len; 7644 ctsio->kern_total_len = alloc_len; 7645 } 7646 ctsio->kern_data_resid = 0; 7647 ctsio->kern_rel_offset = 0; 7648 7649 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7650 scsi_ulto2b(sizeof(*data) - 2, data->length); 7651 data->origin = RTS_ORIG_OUTSIDE; 7652 getmicrotime(&tv); 7653 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7654 scsi_ulto4b(timestamp >> 16, data->timestamp); 7655 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7656 7657 ctl_set_success(ctsio); 7658 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7659 ctsio->be_move_done = ctl_config_move_done; 7660 ctl_datamove((union ctl_io *)ctsio); 7661 return (retval); 7662} 7663 7664int 7665ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7666{ 7667 struct scsi_per_res_in *cdb; 7668 int alloc_len, total_len = 0; 7669 /* struct scsi_per_res_in_rsrv in_data; */ 7670 struct ctl_lun *lun; 7671 struct ctl_softc *softc; 7672 uint64_t key; 7673 7674 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7675 7676 softc = control_softc; 7677 7678 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7679 7680 alloc_len = scsi_2btoul(cdb->length); 7681 7682 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7683 7684retry: 7685 mtx_lock(&lun->lun_lock); 7686 switch (cdb->action) { 7687 case SPRI_RK: /* read keys */ 7688 total_len = sizeof(struct scsi_per_res_in_keys) + 7689 lun->pr_key_count * 7690 sizeof(struct scsi_per_res_key); 7691 break; 7692 case SPRI_RR: /* read reservation */ 7693 if (lun->flags & CTL_LUN_PR_RESERVED) 7694 total_len = sizeof(struct scsi_per_res_in_rsrv); 7695 else 7696 total_len = sizeof(struct scsi_per_res_in_header); 7697 break; 7698 case SPRI_RC: /* report capabilities */ 7699 total_len = sizeof(struct scsi_per_res_cap); 7700 break; 7701 case SPRI_RS: /* read full status */ 7702 total_len = sizeof(struct scsi_per_res_in_header) + 7703 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7704 lun->pr_key_count; 7705 break; 7706 default: 7707 panic("Invalid PR type %x", cdb->action); 7708 } 7709 mtx_unlock(&lun->lun_lock); 7710 7711 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7712 7713 if (total_len < alloc_len) { 7714 ctsio->residual = alloc_len - total_len; 7715 ctsio->kern_data_len = total_len; 7716 ctsio->kern_total_len = total_len; 7717 } else { 7718 ctsio->residual = 0; 7719 ctsio->kern_data_len = alloc_len; 7720 ctsio->kern_total_len = alloc_len; 7721 } 7722 7723 ctsio->kern_data_resid = 0; 7724 ctsio->kern_rel_offset = 0; 7725 ctsio->kern_sg_entries = 0; 7726 7727 mtx_lock(&lun->lun_lock); 7728 switch (cdb->action) { 7729 case SPRI_RK: { // read keys 7730 struct scsi_per_res_in_keys *res_keys; 7731 int i, key_count; 7732 7733 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7734 7735 /* 7736 * We had to drop the lock to allocate our buffer, which 7737 * leaves time for someone to come in with another 7738 * persistent reservation. (That is unlikely, though, 7739 * since this should be the only persistent reservation 7740 * command active right now.) 7741 */ 7742 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7743 (lun->pr_key_count * 7744 sizeof(struct scsi_per_res_key)))){ 7745 mtx_unlock(&lun->lun_lock); 7746 free(ctsio->kern_data_ptr, M_CTL); 7747 printf("%s: reservation length changed, retrying\n", 7748 __func__); 7749 goto retry; 7750 } 7751 7752 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7753 7754 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7755 lun->pr_key_count, res_keys->header.length); 7756 7757 for (i = 0, key_count = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7758 if ((key = ctl_get_prkey(lun, i)) == 0) 7759 continue; 7760 7761 /* 7762 * We used lun->pr_key_count to calculate the 7763 * size to allocate. If it turns out the number of 7764 * initiators with the registered flag set is 7765 * larger than that (i.e. they haven't been kept in 7766 * sync), we've got a problem. 7767 */ 7768 if (key_count >= lun->pr_key_count) { 7769#ifdef NEEDTOPORT 7770 csevent_log(CSC_CTL | CSC_SHELF_SW | 7771 CTL_PR_ERROR, 7772 csevent_LogType_Fault, 7773 csevent_AlertLevel_Yellow, 7774 csevent_FRU_ShelfController, 7775 csevent_FRU_Firmware, 7776 csevent_FRU_Unknown, 7777 "registered keys %d >= key " 7778 "count %d", key_count, 7779 lun->pr_key_count); 7780#endif 7781 key_count++; 7782 continue; 7783 } 7784 scsi_u64to8b(key, res_keys->keys[key_count].key); 7785 key_count++; 7786 } 7787 break; 7788 } 7789 case SPRI_RR: { // read reservation 7790 struct scsi_per_res_in_rsrv *res; 7791 int tmp_len, header_only; 7792 7793 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7794 7795 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7796 7797 if (lun->flags & CTL_LUN_PR_RESERVED) 7798 { 7799 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7800 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7801 res->header.length); 7802 header_only = 0; 7803 } else { 7804 tmp_len = sizeof(struct scsi_per_res_in_header); 7805 scsi_ulto4b(0, res->header.length); 7806 header_only = 1; 7807 } 7808 7809 /* 7810 * We had to drop the lock to allocate our buffer, which 7811 * leaves time for someone to come in with another 7812 * persistent reservation. (That is unlikely, though, 7813 * since this should be the only persistent reservation 7814 * command active right now.) 7815 */ 7816 if (tmp_len != total_len) { 7817 mtx_unlock(&lun->lun_lock); 7818 free(ctsio->kern_data_ptr, M_CTL); 7819 printf("%s: reservation status changed, retrying\n", 7820 __func__); 7821 goto retry; 7822 } 7823 7824 /* 7825 * No reservation held, so we're done. 7826 */ 7827 if (header_only != 0) 7828 break; 7829 7830 /* 7831 * If the registration is an All Registrants type, the key 7832 * is 0, since it doesn't really matter. 7833 */ 7834 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7835 scsi_u64to8b(ctl_get_prkey(lun, lun->pr_res_idx), 7836 res->data.reservation); 7837 } 7838 res->data.scopetype = lun->res_type; 7839 break; 7840 } 7841 case SPRI_RC: //report capabilities 7842 { 7843 struct scsi_per_res_cap *res_cap; 7844 uint16_t type_mask; 7845 7846 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7847 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7848 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_5; 7849 type_mask = SPRI_TM_WR_EX_AR | 7850 SPRI_TM_EX_AC_RO | 7851 SPRI_TM_WR_EX_RO | 7852 SPRI_TM_EX_AC | 7853 SPRI_TM_WR_EX | 7854 SPRI_TM_EX_AC_AR; 7855 scsi_ulto2b(type_mask, res_cap->type_mask); 7856 break; 7857 } 7858 case SPRI_RS: { // read full status 7859 struct scsi_per_res_in_full *res_status; 7860 struct scsi_per_res_in_full_desc *res_desc; 7861 struct ctl_port *port; 7862 int i, len; 7863 7864 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7865 7866 /* 7867 * We had to drop the lock to allocate our buffer, which 7868 * leaves time for someone to come in with another 7869 * persistent reservation. (That is unlikely, though, 7870 * since this should be the only persistent reservation 7871 * command active right now.) 7872 */ 7873 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7874 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7875 lun->pr_key_count)){ 7876 mtx_unlock(&lun->lun_lock); 7877 free(ctsio->kern_data_ptr, M_CTL); 7878 printf("%s: reservation length changed, retrying\n", 7879 __func__); 7880 goto retry; 7881 } 7882 7883 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 7884 7885 res_desc = &res_status->desc[0]; 7886 for (i = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7887 if ((key = ctl_get_prkey(lun, i)) == 0) 7888 continue; 7889 7890 scsi_u64to8b(key, res_desc->res_key.key); 7891 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7892 (lun->pr_res_idx == i || 7893 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7894 res_desc->flags = SPRI_FULL_R_HOLDER; 7895 res_desc->scopetype = lun->res_type; 7896 } 7897 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7898 res_desc->rel_trgt_port_id); 7899 len = 0; 7900 port = softc->ctl_ports[ 7901 ctl_port_idx(i / CTL_MAX_INIT_PER_PORT)]; 7902 if (port != NULL) 7903 len = ctl_create_iid(port, 7904 i % CTL_MAX_INIT_PER_PORT, 7905 res_desc->transport_id); 7906 scsi_ulto4b(len, res_desc->additional_length); 7907 res_desc = (struct scsi_per_res_in_full_desc *) 7908 &res_desc->transport_id[len]; 7909 } 7910 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7911 res_status->header.length); 7912 break; 7913 } 7914 default: 7915 /* 7916 * This is a bug, because we just checked for this above, 7917 * and should have returned an error. 7918 */ 7919 panic("Invalid PR type %x", cdb->action); 7920 break; /* NOTREACHED */ 7921 } 7922 mtx_unlock(&lun->lun_lock); 7923 7924 ctl_set_success(ctsio); 7925 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7926 ctsio->be_move_done = ctl_config_move_done; 7927 ctl_datamove((union ctl_io *)ctsio); 7928 return (CTL_RETVAL_COMPLETE); 7929} 7930 7931static void 7932ctl_set_res_ua(struct ctl_lun *lun, uint32_t residx, ctl_ua_type ua) 7933{ 7934 int off = lun->ctl_softc->persis_offset; 7935 7936 if (residx >= off && residx < off + CTL_MAX_INITIATORS) 7937 lun->pending_ua[residx - off] |= ua; 7938} 7939 7940/* 7941 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7942 * it should return. 7943 */ 7944static int 7945ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7946 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7947 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7948 struct scsi_per_res_out_parms* param) 7949{ 7950 union ctl_ha_msg persis_io; 7951 int retval, i; 7952 int isc_retval; 7953 7954 retval = 0; 7955 7956 mtx_lock(&lun->lun_lock); 7957 if (sa_res_key == 0) { 7958 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7959 /* validate scope and type */ 7960 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7961 SPR_LU_SCOPE) { 7962 mtx_unlock(&lun->lun_lock); 7963 ctl_set_invalid_field(/*ctsio*/ ctsio, 7964 /*sks_valid*/ 1, 7965 /*command*/ 1, 7966 /*field*/ 2, 7967 /*bit_valid*/ 1, 7968 /*bit*/ 4); 7969 ctl_done((union ctl_io *)ctsio); 7970 return (1); 7971 } 7972 7973 if (type>8 || type==2 || type==4 || type==0) { 7974 mtx_unlock(&lun->lun_lock); 7975 ctl_set_invalid_field(/*ctsio*/ ctsio, 7976 /*sks_valid*/ 1, 7977 /*command*/ 1, 7978 /*field*/ 2, 7979 /*bit_valid*/ 1, 7980 /*bit*/ 0); 7981 ctl_done((union ctl_io *)ctsio); 7982 return (1); 7983 } 7984 7985 /* 7986 * Unregister everybody else and build UA for 7987 * them 7988 */ 7989 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 7990 if (i == residx || ctl_get_prkey(lun, i) == 0) 7991 continue; 7992 7993 ctl_clr_prkey(lun, i); 7994 ctl_set_res_ua(lun, i, CTL_UA_REG_PREEMPT); 7995 } 7996 lun->pr_key_count = 1; 7997 lun->res_type = type; 7998 if (lun->res_type != SPR_TYPE_WR_EX_AR 7999 && lun->res_type != SPR_TYPE_EX_AC_AR) 8000 lun->pr_res_idx = residx; 8001 8002 /* send msg to other side */ 8003 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8004 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8005 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8006 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8007 persis_io.pr.pr_info.res_type = type; 8008 memcpy(persis_io.pr.pr_info.sa_res_key, 8009 param->serv_act_res_key, 8010 sizeof(param->serv_act_res_key)); 8011 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8012 &persis_io, sizeof(persis_io), 0)) > 8013 CTL_HA_STATUS_SUCCESS) { 8014 printf("CTL:Persis Out error returned " 8015 "from ctl_ha_msg_send %d\n", 8016 isc_retval); 8017 } 8018 } else { 8019 /* not all registrants */ 8020 mtx_unlock(&lun->lun_lock); 8021 free(ctsio->kern_data_ptr, M_CTL); 8022 ctl_set_invalid_field(ctsio, 8023 /*sks_valid*/ 1, 8024 /*command*/ 0, 8025 /*field*/ 8, 8026 /*bit_valid*/ 0, 8027 /*bit*/ 0); 8028 ctl_done((union ctl_io *)ctsio); 8029 return (1); 8030 } 8031 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8032 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 8033 int found = 0; 8034 8035 if (res_key == sa_res_key) { 8036 /* special case */ 8037 /* 8038 * The spec implies this is not good but doesn't 8039 * say what to do. There are two choices either 8040 * generate a res conflict or check condition 8041 * with illegal field in parameter data. Since 8042 * that is what is done when the sa_res_key is 8043 * zero I'll take that approach since this has 8044 * to do with the sa_res_key. 8045 */ 8046 mtx_unlock(&lun->lun_lock); 8047 free(ctsio->kern_data_ptr, M_CTL); 8048 ctl_set_invalid_field(ctsio, 8049 /*sks_valid*/ 1, 8050 /*command*/ 0, 8051 /*field*/ 8, 8052 /*bit_valid*/ 0, 8053 /*bit*/ 0); 8054 ctl_done((union ctl_io *)ctsio); 8055 return (1); 8056 } 8057 8058 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8059 if (ctl_get_prkey(lun, i) != sa_res_key) 8060 continue; 8061 8062 found = 1; 8063 ctl_clr_prkey(lun, i); 8064 lun->pr_key_count--; 8065 ctl_set_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8066 } 8067 if (!found) { 8068 mtx_unlock(&lun->lun_lock); 8069 free(ctsio->kern_data_ptr, M_CTL); 8070 ctl_set_reservation_conflict(ctsio); 8071 ctl_done((union ctl_io *)ctsio); 8072 return (CTL_RETVAL_COMPLETE); 8073 } 8074 /* send msg to other side */ 8075 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8076 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8077 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8078 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8079 persis_io.pr.pr_info.res_type = type; 8080 memcpy(persis_io.pr.pr_info.sa_res_key, 8081 param->serv_act_res_key, 8082 sizeof(param->serv_act_res_key)); 8083 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8084 &persis_io, sizeof(persis_io), 0)) > 8085 CTL_HA_STATUS_SUCCESS) { 8086 printf("CTL:Persis Out error returned from " 8087 "ctl_ha_msg_send %d\n", isc_retval); 8088 } 8089 } else { 8090 /* Reserved but not all registrants */ 8091 /* sa_res_key is res holder */ 8092 if (sa_res_key == ctl_get_prkey(lun, lun->pr_res_idx)) { 8093 /* validate scope and type */ 8094 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8095 SPR_LU_SCOPE) { 8096 mtx_unlock(&lun->lun_lock); 8097 ctl_set_invalid_field(/*ctsio*/ ctsio, 8098 /*sks_valid*/ 1, 8099 /*command*/ 1, 8100 /*field*/ 2, 8101 /*bit_valid*/ 1, 8102 /*bit*/ 4); 8103 ctl_done((union ctl_io *)ctsio); 8104 return (1); 8105 } 8106 8107 if (type>8 || type==2 || type==4 || type==0) { 8108 mtx_unlock(&lun->lun_lock); 8109 ctl_set_invalid_field(/*ctsio*/ ctsio, 8110 /*sks_valid*/ 1, 8111 /*command*/ 1, 8112 /*field*/ 2, 8113 /*bit_valid*/ 1, 8114 /*bit*/ 0); 8115 ctl_done((union ctl_io *)ctsio); 8116 return (1); 8117 } 8118 8119 /* 8120 * Do the following: 8121 * if sa_res_key != res_key remove all 8122 * registrants w/sa_res_key and generate UA 8123 * for these registrants(Registrations 8124 * Preempted) if it wasn't an exclusive 8125 * reservation generate UA(Reservations 8126 * Preempted) for all other registered nexuses 8127 * if the type has changed. Establish the new 8128 * reservation and holder. If res_key and 8129 * sa_res_key are the same do the above 8130 * except don't unregister the res holder. 8131 */ 8132 8133 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8134 if (i == residx || ctl_get_prkey(lun, i) == 0) 8135 continue; 8136 8137 if (sa_res_key == ctl_get_prkey(lun, i)) { 8138 ctl_clr_prkey(lun, i); 8139 lun->pr_key_count--; 8140 ctl_set_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8141 } else if (type != lun->res_type 8142 && (lun->res_type == SPR_TYPE_WR_EX_RO 8143 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 8144 ctl_set_res_ua(lun, i, CTL_UA_RES_RELEASE); 8145 } 8146 } 8147 lun->res_type = type; 8148 if (lun->res_type != SPR_TYPE_WR_EX_AR 8149 && lun->res_type != SPR_TYPE_EX_AC_AR) 8150 lun->pr_res_idx = residx; 8151 else 8152 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8153 8154 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8155 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8156 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8157 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8158 persis_io.pr.pr_info.res_type = type; 8159 memcpy(persis_io.pr.pr_info.sa_res_key, 8160 param->serv_act_res_key, 8161 sizeof(param->serv_act_res_key)); 8162 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8163 &persis_io, sizeof(persis_io), 0)) > 8164 CTL_HA_STATUS_SUCCESS) { 8165 printf("CTL:Persis Out error returned " 8166 "from ctl_ha_msg_send %d\n", 8167 isc_retval); 8168 } 8169 } else { 8170 /* 8171 * sa_res_key is not the res holder just 8172 * remove registrants 8173 */ 8174 int found=0; 8175 8176 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8177 if (sa_res_key != ctl_get_prkey(lun, i)) 8178 continue; 8179 8180 found = 1; 8181 ctl_clr_prkey(lun, i); 8182 lun->pr_key_count--; 8183 ctl_set_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8184 } 8185 8186 if (!found) { 8187 mtx_unlock(&lun->lun_lock); 8188 free(ctsio->kern_data_ptr, M_CTL); 8189 ctl_set_reservation_conflict(ctsio); 8190 ctl_done((union ctl_io *)ctsio); 8191 return (1); 8192 } 8193 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8194 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8195 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8196 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8197 persis_io.pr.pr_info.res_type = type; 8198 memcpy(persis_io.pr.pr_info.sa_res_key, 8199 param->serv_act_res_key, 8200 sizeof(param->serv_act_res_key)); 8201 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8202 &persis_io, sizeof(persis_io), 0)) > 8203 CTL_HA_STATUS_SUCCESS) { 8204 printf("CTL:Persis Out error returned " 8205 "from ctl_ha_msg_send %d\n", 8206 isc_retval); 8207 } 8208 } 8209 } 8210 8211 lun->PRGeneration++; 8212 mtx_unlock(&lun->lun_lock); 8213 8214 return (retval); 8215} 8216 8217static void 8218ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8219{ 8220 uint64_t sa_res_key; 8221 int i; 8222 8223 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8224 8225 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8226 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8227 || sa_res_key != ctl_get_prkey(lun, lun->pr_res_idx)) { 8228 if (sa_res_key == 0) { 8229 /* 8230 * Unregister everybody else and build UA for 8231 * them 8232 */ 8233 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8234 if (i == msg->pr.pr_info.residx || 8235 ctl_get_prkey(lun, i) == 0) 8236 continue; 8237 8238 ctl_clr_prkey(lun, i); 8239 ctl_set_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8240 } 8241 8242 lun->pr_key_count = 1; 8243 lun->res_type = msg->pr.pr_info.res_type; 8244 if (lun->res_type != SPR_TYPE_WR_EX_AR 8245 && lun->res_type != SPR_TYPE_EX_AC_AR) 8246 lun->pr_res_idx = msg->pr.pr_info.residx; 8247 } else { 8248 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8249 if (sa_res_key == ctl_get_prkey(lun, i)) 8250 continue; 8251 8252 ctl_clr_prkey(lun, i); 8253 lun->pr_key_count--; 8254 ctl_set_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8255 } 8256 } 8257 } else { 8258 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8259 if (i == msg->pr.pr_info.residx || 8260 ctl_get_prkey(lun, i) == 0) 8261 continue; 8262 8263 if (sa_res_key == ctl_get_prkey(lun, i)) { 8264 ctl_clr_prkey(lun, i); 8265 lun->pr_key_count--; 8266 ctl_set_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8267 } else if (msg->pr.pr_info.res_type != lun->res_type 8268 && (lun->res_type == SPR_TYPE_WR_EX_RO 8269 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8270 ctl_set_res_ua(lun, i, CTL_UA_RES_RELEASE); 8271 } 8272 } 8273 lun->res_type = msg->pr.pr_info.res_type; 8274 if (lun->res_type != SPR_TYPE_WR_EX_AR 8275 && lun->res_type != SPR_TYPE_EX_AC_AR) 8276 lun->pr_res_idx = msg->pr.pr_info.residx; 8277 else 8278 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8279 } 8280 lun->PRGeneration++; 8281 8282} 8283 8284 8285int 8286ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8287{ 8288 int retval; 8289 int isc_retval; 8290 u_int32_t param_len; 8291 struct scsi_per_res_out *cdb; 8292 struct ctl_lun *lun; 8293 struct scsi_per_res_out_parms* param; 8294 struct ctl_softc *softc; 8295 uint32_t residx; 8296 uint64_t res_key, sa_res_key, key; 8297 uint8_t type; 8298 union ctl_ha_msg persis_io; 8299 int i; 8300 8301 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8302 8303 retval = CTL_RETVAL_COMPLETE; 8304 8305 softc = control_softc; 8306 8307 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8308 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8309 8310 /* 8311 * We only support whole-LUN scope. The scope & type are ignored for 8312 * register, register and ignore existing key and clear. 8313 * We sometimes ignore scope and type on preempts too!! 8314 * Verify reservation type here as well. 8315 */ 8316 type = cdb->scope_type & SPR_TYPE_MASK; 8317 if ((cdb->action == SPRO_RESERVE) 8318 || (cdb->action == SPRO_RELEASE)) { 8319 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8320 ctl_set_invalid_field(/*ctsio*/ ctsio, 8321 /*sks_valid*/ 1, 8322 /*command*/ 1, 8323 /*field*/ 2, 8324 /*bit_valid*/ 1, 8325 /*bit*/ 4); 8326 ctl_done((union ctl_io *)ctsio); 8327 return (CTL_RETVAL_COMPLETE); 8328 } 8329 8330 if (type>8 || type==2 || type==4 || type==0) { 8331 ctl_set_invalid_field(/*ctsio*/ ctsio, 8332 /*sks_valid*/ 1, 8333 /*command*/ 1, 8334 /*field*/ 2, 8335 /*bit_valid*/ 1, 8336 /*bit*/ 0); 8337 ctl_done((union ctl_io *)ctsio); 8338 return (CTL_RETVAL_COMPLETE); 8339 } 8340 } 8341 8342 param_len = scsi_4btoul(cdb->length); 8343 8344 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8345 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8346 ctsio->kern_data_len = param_len; 8347 ctsio->kern_total_len = param_len; 8348 ctsio->kern_data_resid = 0; 8349 ctsio->kern_rel_offset = 0; 8350 ctsio->kern_sg_entries = 0; 8351 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8352 ctsio->be_move_done = ctl_config_move_done; 8353 ctl_datamove((union ctl_io *)ctsio); 8354 8355 return (CTL_RETVAL_COMPLETE); 8356 } 8357 8358 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8359 8360 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8361 res_key = scsi_8btou64(param->res_key.key); 8362 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8363 8364 /* 8365 * Validate the reservation key here except for SPRO_REG_IGNO 8366 * This must be done for all other service actions 8367 */ 8368 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8369 mtx_lock(&lun->lun_lock); 8370 if ((key = ctl_get_prkey(lun, residx)) != 0) { 8371 if (res_key != key) { 8372 /* 8373 * The current key passed in doesn't match 8374 * the one the initiator previously 8375 * registered. 8376 */ 8377 mtx_unlock(&lun->lun_lock); 8378 free(ctsio->kern_data_ptr, M_CTL); 8379 ctl_set_reservation_conflict(ctsio); 8380 ctl_done((union ctl_io *)ctsio); 8381 return (CTL_RETVAL_COMPLETE); 8382 } 8383 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8384 /* 8385 * We are not registered 8386 */ 8387 mtx_unlock(&lun->lun_lock); 8388 free(ctsio->kern_data_ptr, M_CTL); 8389 ctl_set_reservation_conflict(ctsio); 8390 ctl_done((union ctl_io *)ctsio); 8391 return (CTL_RETVAL_COMPLETE); 8392 } else if (res_key != 0) { 8393 /* 8394 * We are not registered and trying to register but 8395 * the register key isn't zero. 8396 */ 8397 mtx_unlock(&lun->lun_lock); 8398 free(ctsio->kern_data_ptr, M_CTL); 8399 ctl_set_reservation_conflict(ctsio); 8400 ctl_done((union ctl_io *)ctsio); 8401 return (CTL_RETVAL_COMPLETE); 8402 } 8403 mtx_unlock(&lun->lun_lock); 8404 } 8405 8406 switch (cdb->action & SPRO_ACTION_MASK) { 8407 case SPRO_REGISTER: 8408 case SPRO_REG_IGNO: { 8409 8410#if 0 8411 printf("Registration received\n"); 8412#endif 8413 8414 /* 8415 * We don't support any of these options, as we report in 8416 * the read capabilities request (see 8417 * ctl_persistent_reserve_in(), above). 8418 */ 8419 if ((param->flags & SPR_SPEC_I_PT) 8420 || (param->flags & SPR_ALL_TG_PT) 8421 || (param->flags & SPR_APTPL)) { 8422 int bit_ptr; 8423 8424 if (param->flags & SPR_APTPL) 8425 bit_ptr = 0; 8426 else if (param->flags & SPR_ALL_TG_PT) 8427 bit_ptr = 2; 8428 else /* SPR_SPEC_I_PT */ 8429 bit_ptr = 3; 8430 8431 free(ctsio->kern_data_ptr, M_CTL); 8432 ctl_set_invalid_field(ctsio, 8433 /*sks_valid*/ 1, 8434 /*command*/ 0, 8435 /*field*/ 20, 8436 /*bit_valid*/ 1, 8437 /*bit*/ bit_ptr); 8438 ctl_done((union ctl_io *)ctsio); 8439 return (CTL_RETVAL_COMPLETE); 8440 } 8441 8442 mtx_lock(&lun->lun_lock); 8443 8444 /* 8445 * The initiator wants to clear the 8446 * key/unregister. 8447 */ 8448 if (sa_res_key == 0) { 8449 if ((res_key == 0 8450 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8451 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8452 && ctl_get_prkey(lun, residx) == 0)) { 8453 mtx_unlock(&lun->lun_lock); 8454 goto done; 8455 } 8456 8457 ctl_clr_prkey(lun, residx); 8458 lun->pr_key_count--; 8459 8460 if (residx == lun->pr_res_idx) { 8461 lun->flags &= ~CTL_LUN_PR_RESERVED; 8462 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8463 8464 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8465 || lun->res_type == SPR_TYPE_EX_AC_RO) 8466 && lun->pr_key_count) { 8467 /* 8468 * If the reservation is a registrants 8469 * only type we need to generate a UA 8470 * for other registered inits. The 8471 * sense code should be RESERVATIONS 8472 * RELEASED 8473 */ 8474 8475 for (i = 0; i < CTL_MAX_INITIATORS;i++){ 8476 if (ctl_get_prkey(lun, i + 8477 softc->persis_offset) == 0) 8478 continue; 8479 lun->pending_ua[i] |= 8480 CTL_UA_RES_RELEASE; 8481 } 8482 } 8483 lun->res_type = 0; 8484 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8485 if (lun->pr_key_count==0) { 8486 lun->flags &= ~CTL_LUN_PR_RESERVED; 8487 lun->res_type = 0; 8488 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8489 } 8490 } 8491 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8492 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8493 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8494 persis_io.pr.pr_info.residx = residx; 8495 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8496 &persis_io, sizeof(persis_io), 0 )) > 8497 CTL_HA_STATUS_SUCCESS) { 8498 printf("CTL:Persis Out error returned from " 8499 "ctl_ha_msg_send %d\n", isc_retval); 8500 } 8501 } else /* sa_res_key != 0 */ { 8502 8503 /* 8504 * If we aren't registered currently then increment 8505 * the key count and set the registered flag. 8506 */ 8507 ctl_alloc_prkey(lun, residx); 8508 if (ctl_get_prkey(lun, residx) == 0) 8509 lun->pr_key_count++; 8510 ctl_set_prkey(lun, residx, sa_res_key); 8511 8512 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8513 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8514 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8515 persis_io.pr.pr_info.residx = residx; 8516 memcpy(persis_io.pr.pr_info.sa_res_key, 8517 param->serv_act_res_key, 8518 sizeof(param->serv_act_res_key)); 8519 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8520 &persis_io, sizeof(persis_io), 0)) > 8521 CTL_HA_STATUS_SUCCESS) { 8522 printf("CTL:Persis Out error returned from " 8523 "ctl_ha_msg_send %d\n", isc_retval); 8524 } 8525 } 8526 lun->PRGeneration++; 8527 mtx_unlock(&lun->lun_lock); 8528 8529 break; 8530 } 8531 case SPRO_RESERVE: 8532#if 0 8533 printf("Reserve executed type %d\n", type); 8534#endif 8535 mtx_lock(&lun->lun_lock); 8536 if (lun->flags & CTL_LUN_PR_RESERVED) { 8537 /* 8538 * if this isn't the reservation holder and it's 8539 * not a "all registrants" type or if the type is 8540 * different then we have a conflict 8541 */ 8542 if ((lun->pr_res_idx != residx 8543 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8544 || lun->res_type != type) { 8545 mtx_unlock(&lun->lun_lock); 8546 free(ctsio->kern_data_ptr, M_CTL); 8547 ctl_set_reservation_conflict(ctsio); 8548 ctl_done((union ctl_io *)ctsio); 8549 return (CTL_RETVAL_COMPLETE); 8550 } 8551 mtx_unlock(&lun->lun_lock); 8552 } else /* create a reservation */ { 8553 /* 8554 * If it's not an "all registrants" type record 8555 * reservation holder 8556 */ 8557 if (type != SPR_TYPE_WR_EX_AR 8558 && type != SPR_TYPE_EX_AC_AR) 8559 lun->pr_res_idx = residx; /* Res holder */ 8560 else 8561 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8562 8563 lun->flags |= CTL_LUN_PR_RESERVED; 8564 lun->res_type = type; 8565 8566 mtx_unlock(&lun->lun_lock); 8567 8568 /* send msg to other side */ 8569 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8570 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8571 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8572 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8573 persis_io.pr.pr_info.res_type = type; 8574 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8575 &persis_io, sizeof(persis_io), 0)) > 8576 CTL_HA_STATUS_SUCCESS) { 8577 printf("CTL:Persis Out error returned from " 8578 "ctl_ha_msg_send %d\n", isc_retval); 8579 } 8580 } 8581 break; 8582 8583 case SPRO_RELEASE: 8584 mtx_lock(&lun->lun_lock); 8585 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8586 /* No reservation exists return good status */ 8587 mtx_unlock(&lun->lun_lock); 8588 goto done; 8589 } 8590 /* 8591 * Is this nexus a reservation holder? 8592 */ 8593 if (lun->pr_res_idx != residx 8594 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8595 /* 8596 * not a res holder return good status but 8597 * do nothing 8598 */ 8599 mtx_unlock(&lun->lun_lock); 8600 goto done; 8601 } 8602 8603 if (lun->res_type != type) { 8604 mtx_unlock(&lun->lun_lock); 8605 free(ctsio->kern_data_ptr, M_CTL); 8606 ctl_set_illegal_pr_release(ctsio); 8607 ctl_done((union ctl_io *)ctsio); 8608 return (CTL_RETVAL_COMPLETE); 8609 } 8610 8611 /* okay to release */ 8612 lun->flags &= ~CTL_LUN_PR_RESERVED; 8613 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8614 lun->res_type = 0; 8615 8616 /* 8617 * if this isn't an exclusive access 8618 * res generate UA for all other 8619 * registrants. 8620 */ 8621 if (type != SPR_TYPE_EX_AC 8622 && type != SPR_TYPE_WR_EX) { 8623 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8624 if (i == residx || 8625 ctl_get_prkey(lun, 8626 i + softc->persis_offset) == 0) 8627 continue; 8628 lun->pending_ua[i] |= CTL_UA_RES_RELEASE; 8629 } 8630 } 8631 mtx_unlock(&lun->lun_lock); 8632 /* Send msg to other side */ 8633 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8634 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8635 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8636 if ((isc_retval=ctl_ha_msg_send( CTL_HA_CHAN_CTL, &persis_io, 8637 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8638 printf("CTL:Persis Out error returned from " 8639 "ctl_ha_msg_send %d\n", isc_retval); 8640 } 8641 break; 8642 8643 case SPRO_CLEAR: 8644 /* send msg to other side */ 8645 8646 mtx_lock(&lun->lun_lock); 8647 lun->flags &= ~CTL_LUN_PR_RESERVED; 8648 lun->res_type = 0; 8649 lun->pr_key_count = 0; 8650 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8651 8652 ctl_clr_prkey(lun, residx); 8653 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) 8654 if (ctl_get_prkey(lun, i) != 0) { 8655 ctl_clr_prkey(lun, i); 8656 ctl_set_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8657 } 8658 lun->PRGeneration++; 8659 mtx_unlock(&lun->lun_lock); 8660 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8661 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8662 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8663 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8664 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8665 printf("CTL:Persis Out error returned from " 8666 "ctl_ha_msg_send %d\n", isc_retval); 8667 } 8668 break; 8669 8670 case SPRO_PREEMPT: 8671 case SPRO_PRE_ABO: { 8672 int nretval; 8673 8674 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8675 residx, ctsio, cdb, param); 8676 if (nretval != 0) 8677 return (CTL_RETVAL_COMPLETE); 8678 break; 8679 } 8680 default: 8681 panic("Invalid PR type %x", cdb->action); 8682 } 8683 8684done: 8685 free(ctsio->kern_data_ptr, M_CTL); 8686 ctl_set_success(ctsio); 8687 ctl_done((union ctl_io *)ctsio); 8688 8689 return (retval); 8690} 8691 8692/* 8693 * This routine is for handling a message from the other SC pertaining to 8694 * persistent reserve out. All the error checking will have been done 8695 * so only perorming the action need be done here to keep the two 8696 * in sync. 8697 */ 8698static void 8699ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8700{ 8701 struct ctl_lun *lun; 8702 struct ctl_softc *softc; 8703 int i; 8704 uint32_t targ_lun; 8705 8706 softc = control_softc; 8707 8708 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8709 lun = softc->ctl_luns[targ_lun]; 8710 mtx_lock(&lun->lun_lock); 8711 switch(msg->pr.pr_info.action) { 8712 case CTL_PR_REG_KEY: 8713 ctl_alloc_prkey(lun, msg->pr.pr_info.residx); 8714 if (ctl_get_prkey(lun, msg->pr.pr_info.residx) == 0) 8715 lun->pr_key_count++; 8716 ctl_set_prkey(lun, msg->pr.pr_info.residx, 8717 scsi_8btou64(msg->pr.pr_info.sa_res_key)); 8718 lun->PRGeneration++; 8719 break; 8720 8721 case CTL_PR_UNREG_KEY: 8722 ctl_clr_prkey(lun, msg->pr.pr_info.residx); 8723 lun->pr_key_count--; 8724 8725 /* XXX Need to see if the reservation has been released */ 8726 /* if so do we need to generate UA? */ 8727 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8728 lun->flags &= ~CTL_LUN_PR_RESERVED; 8729 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8730 8731 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8732 || lun->res_type == SPR_TYPE_EX_AC_RO) 8733 && lun->pr_key_count) { 8734 /* 8735 * If the reservation is a registrants 8736 * only type we need to generate a UA 8737 * for other registered inits. The 8738 * sense code should be RESERVATIONS 8739 * RELEASED 8740 */ 8741 8742 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8743 if (ctl_get_prkey(lun, i + 8744 softc->persis_offset) == 0) 8745 continue; 8746 8747 lun->pending_ua[i] |= 8748 CTL_UA_RES_RELEASE; 8749 } 8750 } 8751 lun->res_type = 0; 8752 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8753 if (lun->pr_key_count==0) { 8754 lun->flags &= ~CTL_LUN_PR_RESERVED; 8755 lun->res_type = 0; 8756 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8757 } 8758 } 8759 lun->PRGeneration++; 8760 break; 8761 8762 case CTL_PR_RESERVE: 8763 lun->flags |= CTL_LUN_PR_RESERVED; 8764 lun->res_type = msg->pr.pr_info.res_type; 8765 lun->pr_res_idx = msg->pr.pr_info.residx; 8766 8767 break; 8768 8769 case CTL_PR_RELEASE: 8770 /* 8771 * if this isn't an exclusive access res generate UA for all 8772 * other registrants. 8773 */ 8774 if (lun->res_type != SPR_TYPE_EX_AC 8775 && lun->res_type != SPR_TYPE_WR_EX) { 8776 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8777 if (ctl_get_prkey(lun, i + softc->persis_offset) != 0) 8778 lun->pending_ua[i] |= 8779 CTL_UA_RES_RELEASE; 8780 } 8781 8782 lun->flags &= ~CTL_LUN_PR_RESERVED; 8783 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8784 lun->res_type = 0; 8785 break; 8786 8787 case CTL_PR_PREEMPT: 8788 ctl_pro_preempt_other(lun, msg); 8789 break; 8790 case CTL_PR_CLEAR: 8791 lun->flags &= ~CTL_LUN_PR_RESERVED; 8792 lun->res_type = 0; 8793 lun->pr_key_count = 0; 8794 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8795 8796 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8797 if (ctl_get_prkey(lun, i) == 0) 8798 continue; 8799 ctl_clr_prkey(lun, i); 8800 ctl_set_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8801 } 8802 lun->PRGeneration++; 8803 break; 8804 } 8805 8806 mtx_unlock(&lun->lun_lock); 8807} 8808 8809int 8810ctl_read_write(struct ctl_scsiio *ctsio) 8811{ 8812 struct ctl_lun *lun; 8813 struct ctl_lba_len_flags *lbalen; 8814 uint64_t lba; 8815 uint32_t num_blocks; 8816 int flags, retval; 8817 int isread; 8818 8819 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8820 8821 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8822 8823 flags = 0; 8824 retval = CTL_RETVAL_COMPLETE; 8825 8826 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8827 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8828 switch (ctsio->cdb[0]) { 8829 case READ_6: 8830 case WRITE_6: { 8831 struct scsi_rw_6 *cdb; 8832 8833 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8834 8835 lba = scsi_3btoul(cdb->addr); 8836 /* only 5 bits are valid in the most significant address byte */ 8837 lba &= 0x1fffff; 8838 num_blocks = cdb->length; 8839 /* 8840 * This is correct according to SBC-2. 8841 */ 8842 if (num_blocks == 0) 8843 num_blocks = 256; 8844 break; 8845 } 8846 case READ_10: 8847 case WRITE_10: { 8848 struct scsi_rw_10 *cdb; 8849 8850 cdb = (struct scsi_rw_10 *)ctsio->cdb; 8851 if (cdb->byte2 & SRW10_FUA) 8852 flags |= CTL_LLF_FUA; 8853 if (cdb->byte2 & SRW10_DPO) 8854 flags |= CTL_LLF_DPO; 8855 lba = scsi_4btoul(cdb->addr); 8856 num_blocks = scsi_2btoul(cdb->length); 8857 break; 8858 } 8859 case WRITE_VERIFY_10: { 8860 struct scsi_write_verify_10 *cdb; 8861 8862 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 8863 flags |= CTL_LLF_FUA; 8864 if (cdb->byte2 & SWV_DPO) 8865 flags |= CTL_LLF_DPO; 8866 lba = scsi_4btoul(cdb->addr); 8867 num_blocks = scsi_2btoul(cdb->length); 8868 break; 8869 } 8870 case READ_12: 8871 case WRITE_12: { 8872 struct scsi_rw_12 *cdb; 8873 8874 cdb = (struct scsi_rw_12 *)ctsio->cdb; 8875 if (cdb->byte2 & SRW12_FUA) 8876 flags |= CTL_LLF_FUA; 8877 if (cdb->byte2 & SRW12_DPO) 8878 flags |= CTL_LLF_DPO; 8879 lba = scsi_4btoul(cdb->addr); 8880 num_blocks = scsi_4btoul(cdb->length); 8881 break; 8882 } 8883 case WRITE_VERIFY_12: { 8884 struct scsi_write_verify_12 *cdb; 8885 8886 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 8887 flags |= CTL_LLF_FUA; 8888 if (cdb->byte2 & SWV_DPO) 8889 flags |= CTL_LLF_DPO; 8890 lba = scsi_4btoul(cdb->addr); 8891 num_blocks = scsi_4btoul(cdb->length); 8892 break; 8893 } 8894 case READ_16: 8895 case WRITE_16: { 8896 struct scsi_rw_16 *cdb; 8897 8898 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8899 if (cdb->byte2 & SRW12_FUA) 8900 flags |= CTL_LLF_FUA; 8901 if (cdb->byte2 & SRW12_DPO) 8902 flags |= CTL_LLF_DPO; 8903 lba = scsi_8btou64(cdb->addr); 8904 num_blocks = scsi_4btoul(cdb->length); 8905 break; 8906 } 8907 case WRITE_ATOMIC_16: { 8908 struct scsi_rw_16 *cdb; 8909 8910 if (lun->be_lun->atomicblock == 0) { 8911 ctl_set_invalid_opcode(ctsio); 8912 ctl_done((union ctl_io *)ctsio); 8913 return (CTL_RETVAL_COMPLETE); 8914 } 8915 8916 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8917 if (cdb->byte2 & SRW12_FUA) 8918 flags |= CTL_LLF_FUA; 8919 if (cdb->byte2 & SRW12_DPO) 8920 flags |= CTL_LLF_DPO; 8921 lba = scsi_8btou64(cdb->addr); 8922 num_blocks = scsi_4btoul(cdb->length); 8923 if (num_blocks > lun->be_lun->atomicblock) { 8924 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 8925 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 8926 /*bit*/ 0); 8927 ctl_done((union ctl_io *)ctsio); 8928 return (CTL_RETVAL_COMPLETE); 8929 } 8930 break; 8931 } 8932 case WRITE_VERIFY_16: { 8933 struct scsi_write_verify_16 *cdb; 8934 8935 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 8936 flags |= CTL_LLF_FUA; 8937 if (cdb->byte2 & SWV_DPO) 8938 flags |= CTL_LLF_DPO; 8939 lba = scsi_8btou64(cdb->addr); 8940 num_blocks = scsi_4btoul(cdb->length); 8941 break; 8942 } 8943 default: 8944 /* 8945 * We got a command we don't support. This shouldn't 8946 * happen, commands should be filtered out above us. 8947 */ 8948 ctl_set_invalid_opcode(ctsio); 8949 ctl_done((union ctl_io *)ctsio); 8950 8951 return (CTL_RETVAL_COMPLETE); 8952 break; /* NOTREACHED */ 8953 } 8954 8955 /* 8956 * The first check is to make sure we're in bounds, the second 8957 * check is to catch wrap-around problems. If the lba + num blocks 8958 * is less than the lba, then we've wrapped around and the block 8959 * range is invalid anyway. 8960 */ 8961 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8962 || ((lba + num_blocks) < lba)) { 8963 ctl_set_lba_out_of_range(ctsio); 8964 ctl_done((union ctl_io *)ctsio); 8965 return (CTL_RETVAL_COMPLETE); 8966 } 8967 8968 /* 8969 * According to SBC-3, a transfer length of 0 is not an error. 8970 * Note that this cannot happen with WRITE(6) or READ(6), since 0 8971 * translates to 256 blocks for those commands. 8972 */ 8973 if (num_blocks == 0) { 8974 ctl_set_success(ctsio); 8975 ctl_done((union ctl_io *)ctsio); 8976 return (CTL_RETVAL_COMPLETE); 8977 } 8978 8979 /* Set FUA and/or DPO if caches are disabled. */ 8980 if (isread) { 8981 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 8982 SCP_RCD) != 0) 8983 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 8984 } else { 8985 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 8986 SCP_WCE) == 0) 8987 flags |= CTL_LLF_FUA; 8988 } 8989 8990 lbalen = (struct ctl_lba_len_flags *) 8991 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8992 lbalen->lba = lba; 8993 lbalen->len = num_blocks; 8994 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 8995 8996 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 8997 ctsio->kern_rel_offset = 0; 8998 8999 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 9000 9001 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9002 9003 return (retval); 9004} 9005 9006static int 9007ctl_cnw_cont(union ctl_io *io) 9008{ 9009 struct ctl_scsiio *ctsio; 9010 struct ctl_lun *lun; 9011 struct ctl_lba_len_flags *lbalen; 9012 int retval; 9013 9014 ctsio = &io->scsiio; 9015 ctsio->io_hdr.status = CTL_STATUS_NONE; 9016 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 9017 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9018 lbalen = (struct ctl_lba_len_flags *) 9019 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9020 lbalen->flags &= ~CTL_LLF_COMPARE; 9021 lbalen->flags |= CTL_LLF_WRITE; 9022 9023 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 9024 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9025 return (retval); 9026} 9027 9028int 9029ctl_cnw(struct ctl_scsiio *ctsio) 9030{ 9031 struct ctl_lun *lun; 9032 struct ctl_lba_len_flags *lbalen; 9033 uint64_t lba; 9034 uint32_t num_blocks; 9035 int flags, retval; 9036 9037 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9038 9039 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 9040 9041 flags = 0; 9042 retval = CTL_RETVAL_COMPLETE; 9043 9044 switch (ctsio->cdb[0]) { 9045 case COMPARE_AND_WRITE: { 9046 struct scsi_compare_and_write *cdb; 9047 9048 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 9049 if (cdb->byte2 & SRW10_FUA) 9050 flags |= CTL_LLF_FUA; 9051 if (cdb->byte2 & SRW10_DPO) 9052 flags |= CTL_LLF_DPO; 9053 lba = scsi_8btou64(cdb->addr); 9054 num_blocks = cdb->length; 9055 break; 9056 } 9057 default: 9058 /* 9059 * We got a command we don't support. This shouldn't 9060 * happen, commands should be filtered out above us. 9061 */ 9062 ctl_set_invalid_opcode(ctsio); 9063 ctl_done((union ctl_io *)ctsio); 9064 9065 return (CTL_RETVAL_COMPLETE); 9066 break; /* NOTREACHED */ 9067 } 9068 9069 /* 9070 * The first check is to make sure we're in bounds, the second 9071 * check is to catch wrap-around problems. If the lba + num blocks 9072 * is less than the lba, then we've wrapped around and the block 9073 * range is invalid anyway. 9074 */ 9075 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9076 || ((lba + num_blocks) < lba)) { 9077 ctl_set_lba_out_of_range(ctsio); 9078 ctl_done((union ctl_io *)ctsio); 9079 return (CTL_RETVAL_COMPLETE); 9080 } 9081 9082 /* 9083 * According to SBC-3, a transfer length of 0 is not an error. 9084 */ 9085 if (num_blocks == 0) { 9086 ctl_set_success(ctsio); 9087 ctl_done((union ctl_io *)ctsio); 9088 return (CTL_RETVAL_COMPLETE); 9089 } 9090 9091 /* Set FUA if write cache is disabled. */ 9092 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9093 SCP_WCE) == 0) 9094 flags |= CTL_LLF_FUA; 9095 9096 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 9097 ctsio->kern_rel_offset = 0; 9098 9099 /* 9100 * Set the IO_CONT flag, so that if this I/O gets passed to 9101 * ctl_data_submit_done(), it'll get passed back to 9102 * ctl_ctl_cnw_cont() for further processing. 9103 */ 9104 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 9105 ctsio->io_cont = ctl_cnw_cont; 9106 9107 lbalen = (struct ctl_lba_len_flags *) 9108 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9109 lbalen->lba = lba; 9110 lbalen->len = num_blocks; 9111 lbalen->flags = CTL_LLF_COMPARE | flags; 9112 9113 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 9114 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9115 return (retval); 9116} 9117 9118int 9119ctl_verify(struct ctl_scsiio *ctsio) 9120{ 9121 struct ctl_lun *lun; 9122 struct ctl_lba_len_flags *lbalen; 9123 uint64_t lba; 9124 uint32_t num_blocks; 9125 int bytchk, flags; 9126 int retval; 9127 9128 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9129 9130 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 9131 9132 bytchk = 0; 9133 flags = CTL_LLF_FUA; 9134 retval = CTL_RETVAL_COMPLETE; 9135 9136 switch (ctsio->cdb[0]) { 9137 case VERIFY_10: { 9138 struct scsi_verify_10 *cdb; 9139 9140 cdb = (struct scsi_verify_10 *)ctsio->cdb; 9141 if (cdb->byte2 & SVFY_BYTCHK) 9142 bytchk = 1; 9143 if (cdb->byte2 & SVFY_DPO) 9144 flags |= CTL_LLF_DPO; 9145 lba = scsi_4btoul(cdb->addr); 9146 num_blocks = scsi_2btoul(cdb->length); 9147 break; 9148 } 9149 case VERIFY_12: { 9150 struct scsi_verify_12 *cdb; 9151 9152 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9153 if (cdb->byte2 & SVFY_BYTCHK) 9154 bytchk = 1; 9155 if (cdb->byte2 & SVFY_DPO) 9156 flags |= CTL_LLF_DPO; 9157 lba = scsi_4btoul(cdb->addr); 9158 num_blocks = scsi_4btoul(cdb->length); 9159 break; 9160 } 9161 case VERIFY_16: { 9162 struct scsi_rw_16 *cdb; 9163 9164 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9165 if (cdb->byte2 & SVFY_BYTCHK) 9166 bytchk = 1; 9167 if (cdb->byte2 & SVFY_DPO) 9168 flags |= CTL_LLF_DPO; 9169 lba = scsi_8btou64(cdb->addr); 9170 num_blocks = scsi_4btoul(cdb->length); 9171 break; 9172 } 9173 default: 9174 /* 9175 * We got a command we don't support. This shouldn't 9176 * happen, commands should be filtered out above us. 9177 */ 9178 ctl_set_invalid_opcode(ctsio); 9179 ctl_done((union ctl_io *)ctsio); 9180 return (CTL_RETVAL_COMPLETE); 9181 } 9182 9183 /* 9184 * The first check is to make sure we're in bounds, the second 9185 * check is to catch wrap-around problems. If the lba + num blocks 9186 * is less than the lba, then we've wrapped around and the block 9187 * range is invalid anyway. 9188 */ 9189 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9190 || ((lba + num_blocks) < lba)) { 9191 ctl_set_lba_out_of_range(ctsio); 9192 ctl_done((union ctl_io *)ctsio); 9193 return (CTL_RETVAL_COMPLETE); 9194 } 9195 9196 /* 9197 * According to SBC-3, a transfer length of 0 is not an error. 9198 */ 9199 if (num_blocks == 0) { 9200 ctl_set_success(ctsio); 9201 ctl_done((union ctl_io *)ctsio); 9202 return (CTL_RETVAL_COMPLETE); 9203 } 9204 9205 lbalen = (struct ctl_lba_len_flags *) 9206 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9207 lbalen->lba = lba; 9208 lbalen->len = num_blocks; 9209 if (bytchk) { 9210 lbalen->flags = CTL_LLF_COMPARE | flags; 9211 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9212 } else { 9213 lbalen->flags = CTL_LLF_VERIFY | flags; 9214 ctsio->kern_total_len = 0; 9215 } 9216 ctsio->kern_rel_offset = 0; 9217 9218 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9219 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9220 return (retval); 9221} 9222 9223int 9224ctl_report_luns(struct ctl_scsiio *ctsio) 9225{ 9226 struct scsi_report_luns *cdb; 9227 struct scsi_report_luns_data *lun_data; 9228 struct ctl_lun *lun, *request_lun; 9229 int num_luns, retval; 9230 uint32_t alloc_len, lun_datalen; 9231 int num_filled, well_known; 9232 uint32_t initidx, targ_lun_id, lun_id; 9233 9234 retval = CTL_RETVAL_COMPLETE; 9235 well_known = 0; 9236 9237 cdb = (struct scsi_report_luns *)ctsio->cdb; 9238 9239 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9240 9241 mtx_lock(&control_softc->ctl_lock); 9242 num_luns = control_softc->num_luns; 9243 mtx_unlock(&control_softc->ctl_lock); 9244 9245 switch (cdb->select_report) { 9246 case RPL_REPORT_DEFAULT: 9247 case RPL_REPORT_ALL: 9248 break; 9249 case RPL_REPORT_WELLKNOWN: 9250 well_known = 1; 9251 num_luns = 0; 9252 break; 9253 default: 9254 ctl_set_invalid_field(ctsio, 9255 /*sks_valid*/ 1, 9256 /*command*/ 1, 9257 /*field*/ 2, 9258 /*bit_valid*/ 0, 9259 /*bit*/ 0); 9260 ctl_done((union ctl_io *)ctsio); 9261 return (retval); 9262 break; /* NOTREACHED */ 9263 } 9264 9265 alloc_len = scsi_4btoul(cdb->length); 9266 /* 9267 * The initiator has to allocate at least 16 bytes for this request, 9268 * so he can at least get the header and the first LUN. Otherwise 9269 * we reject the request (per SPC-3 rev 14, section 6.21). 9270 */ 9271 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9272 sizeof(struct scsi_report_luns_lundata))) { 9273 ctl_set_invalid_field(ctsio, 9274 /*sks_valid*/ 1, 9275 /*command*/ 1, 9276 /*field*/ 6, 9277 /*bit_valid*/ 0, 9278 /*bit*/ 0); 9279 ctl_done((union ctl_io *)ctsio); 9280 return (retval); 9281 } 9282 9283 request_lun = (struct ctl_lun *) 9284 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9285 9286 lun_datalen = sizeof(*lun_data) + 9287 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9288 9289 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9290 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9291 ctsio->kern_sg_entries = 0; 9292 9293 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9294 9295 mtx_lock(&control_softc->ctl_lock); 9296 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9297 lun_id = ctl_map_lun(ctsio->io_hdr.nexus.targ_port, targ_lun_id); 9298 if (lun_id >= CTL_MAX_LUNS) 9299 continue; 9300 lun = control_softc->ctl_luns[lun_id]; 9301 if (lun == NULL) 9302 continue; 9303 9304 if (targ_lun_id <= 0xff) { 9305 /* 9306 * Peripheral addressing method, bus number 0. 9307 */ 9308 lun_data->luns[num_filled].lundata[0] = 9309 RPL_LUNDATA_ATYP_PERIPH; 9310 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9311 num_filled++; 9312 } else if (targ_lun_id <= 0x3fff) { 9313 /* 9314 * Flat addressing method. 9315 */ 9316 lun_data->luns[num_filled].lundata[0] = 9317 RPL_LUNDATA_ATYP_FLAT | (targ_lun_id >> 8); 9318 lun_data->luns[num_filled].lundata[1] = 9319 (targ_lun_id & 0xff); 9320 num_filled++; 9321 } else if (targ_lun_id <= 0xffffff) { 9322 /* 9323 * Extended flat addressing method. 9324 */ 9325 lun_data->luns[num_filled].lundata[0] = 9326 RPL_LUNDATA_ATYP_EXTLUN | 0x12; 9327 scsi_ulto3b(targ_lun_id, 9328 &lun_data->luns[num_filled].lundata[1]); 9329 num_filled++; 9330 } else { 9331 printf("ctl_report_luns: bogus LUN number %jd, " 9332 "skipping\n", (intmax_t)targ_lun_id); 9333 } 9334 /* 9335 * According to SPC-3, rev 14 section 6.21: 9336 * 9337 * "The execution of a REPORT LUNS command to any valid and 9338 * installed logical unit shall clear the REPORTED LUNS DATA 9339 * HAS CHANGED unit attention condition for all logical 9340 * units of that target with respect to the requesting 9341 * initiator. A valid and installed logical unit is one 9342 * having a PERIPHERAL QUALIFIER of 000b in the standard 9343 * INQUIRY data (see 6.4.2)." 9344 * 9345 * If request_lun is NULL, the LUN this report luns command 9346 * was issued to is either disabled or doesn't exist. In that 9347 * case, we shouldn't clear any pending lun change unit 9348 * attention. 9349 */ 9350 if (request_lun != NULL) { 9351 mtx_lock(&lun->lun_lock); 9352 lun->pending_ua[initidx] &= ~CTL_UA_LUN_CHANGE; 9353 mtx_unlock(&lun->lun_lock); 9354 } 9355 } 9356 mtx_unlock(&control_softc->ctl_lock); 9357 9358 /* 9359 * It's quite possible that we've returned fewer LUNs than we allocated 9360 * space for. Trim it. 9361 */ 9362 lun_datalen = sizeof(*lun_data) + 9363 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9364 9365 if (lun_datalen < alloc_len) { 9366 ctsio->residual = alloc_len - lun_datalen; 9367 ctsio->kern_data_len = lun_datalen; 9368 ctsio->kern_total_len = lun_datalen; 9369 } else { 9370 ctsio->residual = 0; 9371 ctsio->kern_data_len = alloc_len; 9372 ctsio->kern_total_len = alloc_len; 9373 } 9374 ctsio->kern_data_resid = 0; 9375 ctsio->kern_rel_offset = 0; 9376 ctsio->kern_sg_entries = 0; 9377 9378 /* 9379 * We set this to the actual data length, regardless of how much 9380 * space we actually have to return results. If the user looks at 9381 * this value, he'll know whether or not he allocated enough space 9382 * and reissue the command if necessary. We don't support well 9383 * known logical units, so if the user asks for that, return none. 9384 */ 9385 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9386 9387 /* 9388 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9389 * this request. 9390 */ 9391 ctl_set_success(ctsio); 9392 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9393 ctsio->be_move_done = ctl_config_move_done; 9394 ctl_datamove((union ctl_io *)ctsio); 9395 return (retval); 9396} 9397 9398int 9399ctl_request_sense(struct ctl_scsiio *ctsio) 9400{ 9401 struct scsi_request_sense *cdb; 9402 struct scsi_sense_data *sense_ptr; 9403 struct ctl_lun *lun; 9404 uint32_t initidx; 9405 int have_error; 9406 scsi_sense_data_type sense_format; 9407 9408 cdb = (struct scsi_request_sense *)ctsio->cdb; 9409 9410 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9411 9412 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9413 9414 /* 9415 * Determine which sense format the user wants. 9416 */ 9417 if (cdb->byte2 & SRS_DESC) 9418 sense_format = SSD_TYPE_DESC; 9419 else 9420 sense_format = SSD_TYPE_FIXED; 9421 9422 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9423 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9424 ctsio->kern_sg_entries = 0; 9425 9426 /* 9427 * struct scsi_sense_data, which is currently set to 256 bytes, is 9428 * larger than the largest allowed value for the length field in the 9429 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9430 */ 9431 ctsio->residual = 0; 9432 ctsio->kern_data_len = cdb->length; 9433 ctsio->kern_total_len = cdb->length; 9434 9435 ctsio->kern_data_resid = 0; 9436 ctsio->kern_rel_offset = 0; 9437 ctsio->kern_sg_entries = 0; 9438 9439 /* 9440 * If we don't have a LUN, we don't have any pending sense. 9441 */ 9442 if (lun == NULL) 9443 goto no_sense; 9444 9445 have_error = 0; 9446 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9447 /* 9448 * Check for pending sense, and then for pending unit attentions. 9449 * Pending sense gets returned first, then pending unit attentions. 9450 */ 9451 mtx_lock(&lun->lun_lock); 9452#ifdef CTL_WITH_CA 9453 if (ctl_is_set(lun->have_ca, initidx)) { 9454 scsi_sense_data_type stored_format; 9455 9456 /* 9457 * Check to see which sense format was used for the stored 9458 * sense data. 9459 */ 9460 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9461 9462 /* 9463 * If the user requested a different sense format than the 9464 * one we stored, then we need to convert it to the other 9465 * format. If we're going from descriptor to fixed format 9466 * sense data, we may lose things in translation, depending 9467 * on what options were used. 9468 * 9469 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9470 * for some reason we'll just copy it out as-is. 9471 */ 9472 if ((stored_format == SSD_TYPE_FIXED) 9473 && (sense_format == SSD_TYPE_DESC)) 9474 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9475 &lun->pending_sense[initidx], 9476 (struct scsi_sense_data_desc *)sense_ptr); 9477 else if ((stored_format == SSD_TYPE_DESC) 9478 && (sense_format == SSD_TYPE_FIXED)) 9479 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9480 &lun->pending_sense[initidx], 9481 (struct scsi_sense_data_fixed *)sense_ptr); 9482 else 9483 memcpy(sense_ptr, &lun->pending_sense[initidx], 9484 ctl_min(sizeof(*sense_ptr), 9485 sizeof(lun->pending_sense[initidx]))); 9486 9487 ctl_clear_mask(lun->have_ca, initidx); 9488 have_error = 1; 9489 } else 9490#endif 9491 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 9492 ctl_ua_type ua_type; 9493 9494 ua_type = ctl_build_ua(&lun->pending_ua[initidx], 9495 sense_ptr, sense_format); 9496 if (ua_type != CTL_UA_NONE) 9497 have_error = 1; 9498 } 9499 mtx_unlock(&lun->lun_lock); 9500 9501 /* 9502 * We already have a pending error, return it. 9503 */ 9504 if (have_error != 0) { 9505 /* 9506 * We report the SCSI status as OK, since the status of the 9507 * request sense command itself is OK. 9508 * We report 0 for the sense length, because we aren't doing 9509 * autosense in this case. We're reporting sense as 9510 * parameter data. 9511 */ 9512 ctl_set_success(ctsio); 9513 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9514 ctsio->be_move_done = ctl_config_move_done; 9515 ctl_datamove((union ctl_io *)ctsio); 9516 return (CTL_RETVAL_COMPLETE); 9517 } 9518 9519no_sense: 9520 9521 /* 9522 * No sense information to report, so we report that everything is 9523 * okay. 9524 */ 9525 ctl_set_sense_data(sense_ptr, 9526 lun, 9527 sense_format, 9528 /*current_error*/ 1, 9529 /*sense_key*/ SSD_KEY_NO_SENSE, 9530 /*asc*/ 0x00, 9531 /*ascq*/ 0x00, 9532 SSD_ELEM_NONE); 9533 9534 /* 9535 * We report 0 for the sense length, because we aren't doing 9536 * autosense in this case. We're reporting sense as parameter data. 9537 */ 9538 ctl_set_success(ctsio); 9539 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9540 ctsio->be_move_done = ctl_config_move_done; 9541 ctl_datamove((union ctl_io *)ctsio); 9542 return (CTL_RETVAL_COMPLETE); 9543} 9544 9545int 9546ctl_tur(struct ctl_scsiio *ctsio) 9547{ 9548 9549 CTL_DEBUG_PRINT(("ctl_tur\n")); 9550 9551 ctl_set_success(ctsio); 9552 ctl_done((union ctl_io *)ctsio); 9553 9554 return (CTL_RETVAL_COMPLETE); 9555} 9556 9557#ifdef notyet 9558static int 9559ctl_cmddt_inquiry(struct ctl_scsiio *ctsio) 9560{ 9561 9562} 9563#endif 9564 9565static int 9566ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9567{ 9568 struct scsi_vpd_supported_pages *pages; 9569 int sup_page_size; 9570 struct ctl_lun *lun; 9571 9572 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9573 9574 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9575 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9576 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9577 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9578 ctsio->kern_sg_entries = 0; 9579 9580 if (sup_page_size < alloc_len) { 9581 ctsio->residual = alloc_len - sup_page_size; 9582 ctsio->kern_data_len = sup_page_size; 9583 ctsio->kern_total_len = sup_page_size; 9584 } else { 9585 ctsio->residual = 0; 9586 ctsio->kern_data_len = alloc_len; 9587 ctsio->kern_total_len = alloc_len; 9588 } 9589 ctsio->kern_data_resid = 0; 9590 ctsio->kern_rel_offset = 0; 9591 ctsio->kern_sg_entries = 0; 9592 9593 /* 9594 * The control device is always connected. The disk device, on the 9595 * other hand, may not be online all the time. Need to change this 9596 * to figure out whether the disk device is actually online or not. 9597 */ 9598 if (lun != NULL) 9599 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9600 lun->be_lun->lun_type; 9601 else 9602 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9603 9604 pages->length = SCSI_EVPD_NUM_SUPPORTED_PAGES; 9605 /* Supported VPD pages */ 9606 pages->page_list[0] = SVPD_SUPPORTED_PAGES; 9607 /* Serial Number */ 9608 pages->page_list[1] = SVPD_UNIT_SERIAL_NUMBER; 9609 /* Device Identification */ 9610 pages->page_list[2] = SVPD_DEVICE_ID; 9611 /* Extended INQUIRY Data */ 9612 pages->page_list[3] = SVPD_EXTENDED_INQUIRY_DATA; 9613 /* Mode Page Policy */ 9614 pages->page_list[4] = SVPD_MODE_PAGE_POLICY; 9615 /* SCSI Ports */ 9616 pages->page_list[5] = SVPD_SCSI_PORTS; 9617 /* Third-party Copy */ 9618 pages->page_list[6] = SVPD_SCSI_TPC; 9619 /* Block limits */ 9620 pages->page_list[7] = SVPD_BLOCK_LIMITS; 9621 /* Block Device Characteristics */ 9622 pages->page_list[8] = SVPD_BDC; 9623 /* Logical Block Provisioning */ 9624 pages->page_list[9] = SVPD_LBP; 9625 9626 ctl_set_success(ctsio); 9627 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9628 ctsio->be_move_done = ctl_config_move_done; 9629 ctl_datamove((union ctl_io *)ctsio); 9630 return (CTL_RETVAL_COMPLETE); 9631} 9632 9633static int 9634ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9635{ 9636 struct scsi_vpd_unit_serial_number *sn_ptr; 9637 struct ctl_lun *lun; 9638 int data_len; 9639 9640 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9641 9642 data_len = 4 + CTL_SN_LEN; 9643 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9644 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9645 if (data_len < alloc_len) { 9646 ctsio->residual = alloc_len - data_len; 9647 ctsio->kern_data_len = data_len; 9648 ctsio->kern_total_len = data_len; 9649 } else { 9650 ctsio->residual = 0; 9651 ctsio->kern_data_len = alloc_len; 9652 ctsio->kern_total_len = alloc_len; 9653 } 9654 ctsio->kern_data_resid = 0; 9655 ctsio->kern_rel_offset = 0; 9656 ctsio->kern_sg_entries = 0; 9657 9658 /* 9659 * The control device is always connected. The disk device, on the 9660 * other hand, may not be online all the time. Need to change this 9661 * to figure out whether the disk device is actually online or not. 9662 */ 9663 if (lun != NULL) 9664 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9665 lun->be_lun->lun_type; 9666 else 9667 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9668 9669 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9670 sn_ptr->length = CTL_SN_LEN; 9671 /* 9672 * If we don't have a LUN, we just leave the serial number as 9673 * all spaces. 9674 */ 9675 if (lun != NULL) { 9676 strncpy((char *)sn_ptr->serial_num, 9677 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9678 } else 9679 memset(sn_ptr->serial_num, 0x20, CTL_SN_LEN); 9680 9681 ctl_set_success(ctsio); 9682 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9683 ctsio->be_move_done = ctl_config_move_done; 9684 ctl_datamove((union ctl_io *)ctsio); 9685 return (CTL_RETVAL_COMPLETE); 9686} 9687 9688 9689static int 9690ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9691{ 9692 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9693 struct ctl_lun *lun; 9694 int data_len; 9695 9696 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9697 9698 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9699 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9700 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9701 ctsio->kern_sg_entries = 0; 9702 9703 if (data_len < alloc_len) { 9704 ctsio->residual = alloc_len - data_len; 9705 ctsio->kern_data_len = data_len; 9706 ctsio->kern_total_len = data_len; 9707 } else { 9708 ctsio->residual = 0; 9709 ctsio->kern_data_len = alloc_len; 9710 ctsio->kern_total_len = alloc_len; 9711 } 9712 ctsio->kern_data_resid = 0; 9713 ctsio->kern_rel_offset = 0; 9714 ctsio->kern_sg_entries = 0; 9715 9716 /* 9717 * The control device is always connected. The disk device, on the 9718 * other hand, may not be online all the time. 9719 */ 9720 if (lun != NULL) 9721 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9722 lun->be_lun->lun_type; 9723 else 9724 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9725 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9726 eid_ptr->page_length = data_len - 4; 9727 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9728 eid_ptr->flags3 = SVPD_EID_V_SUP; 9729 9730 ctl_set_success(ctsio); 9731 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9732 ctsio->be_move_done = ctl_config_move_done; 9733 ctl_datamove((union ctl_io *)ctsio); 9734 return (CTL_RETVAL_COMPLETE); 9735} 9736 9737static int 9738ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9739{ 9740 struct scsi_vpd_mode_page_policy *mpp_ptr; 9741 struct ctl_lun *lun; 9742 int data_len; 9743 9744 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9745 9746 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9747 sizeof(struct scsi_vpd_mode_page_policy_descr); 9748 9749 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9750 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9751 ctsio->kern_sg_entries = 0; 9752 9753 if (data_len < alloc_len) { 9754 ctsio->residual = alloc_len - data_len; 9755 ctsio->kern_data_len = data_len; 9756 ctsio->kern_total_len = data_len; 9757 } else { 9758 ctsio->residual = 0; 9759 ctsio->kern_data_len = alloc_len; 9760 ctsio->kern_total_len = alloc_len; 9761 } 9762 ctsio->kern_data_resid = 0; 9763 ctsio->kern_rel_offset = 0; 9764 ctsio->kern_sg_entries = 0; 9765 9766 /* 9767 * The control device is always connected. The disk device, on the 9768 * other hand, may not be online all the time. 9769 */ 9770 if (lun != NULL) 9771 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9772 lun->be_lun->lun_type; 9773 else 9774 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9775 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9776 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9777 mpp_ptr->descr[0].page_code = 0x3f; 9778 mpp_ptr->descr[0].subpage_code = 0xff; 9779 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9780 9781 ctl_set_success(ctsio); 9782 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9783 ctsio->be_move_done = ctl_config_move_done; 9784 ctl_datamove((union ctl_io *)ctsio); 9785 return (CTL_RETVAL_COMPLETE); 9786} 9787 9788static int 9789ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9790{ 9791 struct scsi_vpd_device_id *devid_ptr; 9792 struct scsi_vpd_id_descriptor *desc; 9793 struct ctl_softc *ctl_softc; 9794 struct ctl_lun *lun; 9795 struct ctl_port *port; 9796 int data_len; 9797 uint8_t proto; 9798 9799 ctl_softc = control_softc; 9800 9801 port = ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]; 9802 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9803 9804 data_len = sizeof(struct scsi_vpd_device_id) + 9805 sizeof(struct scsi_vpd_id_descriptor) + 9806 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9807 sizeof(struct scsi_vpd_id_descriptor) + 9808 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9809 if (lun && lun->lun_devid) 9810 data_len += lun->lun_devid->len; 9811 if (port->port_devid) 9812 data_len += port->port_devid->len; 9813 if (port->target_devid) 9814 data_len += port->target_devid->len; 9815 9816 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9817 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9818 ctsio->kern_sg_entries = 0; 9819 9820 if (data_len < alloc_len) { 9821 ctsio->residual = alloc_len - data_len; 9822 ctsio->kern_data_len = data_len; 9823 ctsio->kern_total_len = data_len; 9824 } else { 9825 ctsio->residual = 0; 9826 ctsio->kern_data_len = alloc_len; 9827 ctsio->kern_total_len = alloc_len; 9828 } 9829 ctsio->kern_data_resid = 0; 9830 ctsio->kern_rel_offset = 0; 9831 ctsio->kern_sg_entries = 0; 9832 9833 /* 9834 * The control device is always connected. The disk device, on the 9835 * other hand, may not be online all the time. 9836 */ 9837 if (lun != NULL) 9838 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9839 lun->be_lun->lun_type; 9840 else 9841 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9842 devid_ptr->page_code = SVPD_DEVICE_ID; 9843 scsi_ulto2b(data_len - 4, devid_ptr->length); 9844 9845 if (port->port_type == CTL_PORT_FC) 9846 proto = SCSI_PROTO_FC << 4; 9847 else if (port->port_type == CTL_PORT_ISCSI) 9848 proto = SCSI_PROTO_ISCSI << 4; 9849 else 9850 proto = SCSI_PROTO_SPI << 4; 9851 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9852 9853 /* 9854 * We're using a LUN association here. i.e., this device ID is a 9855 * per-LUN identifier. 9856 */ 9857 if (lun && lun->lun_devid) { 9858 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9859 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9860 lun->lun_devid->len); 9861 } 9862 9863 /* 9864 * This is for the WWPN which is a port association. 9865 */ 9866 if (port->port_devid) { 9867 memcpy(desc, port->port_devid->data, port->port_devid->len); 9868 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9869 port->port_devid->len); 9870 } 9871 9872 /* 9873 * This is for the Relative Target Port(type 4h) identifier 9874 */ 9875 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9876 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9877 SVPD_ID_TYPE_RELTARG; 9878 desc->length = 4; 9879 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9880 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9881 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9882 9883 /* 9884 * This is for the Target Port Group(type 5h) identifier 9885 */ 9886 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9887 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9888 SVPD_ID_TYPE_TPORTGRP; 9889 desc->length = 4; 9890 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS + 1, 9891 &desc->identifier[2]); 9892 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9893 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9894 9895 /* 9896 * This is for the Target identifier 9897 */ 9898 if (port->target_devid) { 9899 memcpy(desc, port->target_devid->data, port->target_devid->len); 9900 } 9901 9902 ctl_set_success(ctsio); 9903 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9904 ctsio->be_move_done = ctl_config_move_done; 9905 ctl_datamove((union ctl_io *)ctsio); 9906 return (CTL_RETVAL_COMPLETE); 9907} 9908 9909static int 9910ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 9911{ 9912 struct ctl_softc *softc = control_softc; 9913 struct scsi_vpd_scsi_ports *sp; 9914 struct scsi_vpd_port_designation *pd; 9915 struct scsi_vpd_port_designation_cont *pdc; 9916 struct ctl_lun *lun; 9917 struct ctl_port *port; 9918 int data_len, num_target_ports, iid_len, id_len, g, pg, p; 9919 int num_target_port_groups; 9920 9921 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9922 9923 if (softc->is_single) 9924 num_target_port_groups = 1; 9925 else 9926 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 9927 num_target_ports = 0; 9928 iid_len = 0; 9929 id_len = 0; 9930 mtx_lock(&softc->ctl_lock); 9931 STAILQ_FOREACH(port, &softc->port_list, links) { 9932 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9933 continue; 9934 if (lun != NULL && 9935 ctl_map_lun_back(port->targ_port, lun->lun) >= 9936 CTL_MAX_LUNS) 9937 continue; 9938 num_target_ports++; 9939 if (port->init_devid) 9940 iid_len += port->init_devid->len; 9941 if (port->port_devid) 9942 id_len += port->port_devid->len; 9943 } 9944 mtx_unlock(&softc->ctl_lock); 9945 9946 data_len = sizeof(struct scsi_vpd_scsi_ports) + num_target_port_groups * 9947 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 9948 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 9949 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9950 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 9951 ctsio->kern_sg_entries = 0; 9952 9953 if (data_len < alloc_len) { 9954 ctsio->residual = alloc_len - data_len; 9955 ctsio->kern_data_len = data_len; 9956 ctsio->kern_total_len = data_len; 9957 } else { 9958 ctsio->residual = 0; 9959 ctsio->kern_data_len = alloc_len; 9960 ctsio->kern_total_len = alloc_len; 9961 } 9962 ctsio->kern_data_resid = 0; 9963 ctsio->kern_rel_offset = 0; 9964 ctsio->kern_sg_entries = 0; 9965 9966 /* 9967 * The control device is always connected. The disk device, on the 9968 * other hand, may not be online all the time. Need to change this 9969 * to figure out whether the disk device is actually online or not. 9970 */ 9971 if (lun != NULL) 9972 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 9973 lun->be_lun->lun_type; 9974 else 9975 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9976 9977 sp->page_code = SVPD_SCSI_PORTS; 9978 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 9979 sp->page_length); 9980 pd = &sp->design[0]; 9981 9982 mtx_lock(&softc->ctl_lock); 9983 pg = softc->port_offset / CTL_MAX_PORTS; 9984 for (g = 0; g < num_target_port_groups; g++) { 9985 STAILQ_FOREACH(port, &softc->port_list, links) { 9986 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9987 continue; 9988 if (lun != NULL && 9989 ctl_map_lun_back(port->targ_port, lun->lun) >= 9990 CTL_MAX_LUNS) 9991 continue; 9992 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 9993 scsi_ulto2b(p, pd->relative_port_id); 9994 if (port->init_devid && g == pg) { 9995 iid_len = port->init_devid->len; 9996 memcpy(pd->initiator_transportid, 9997 port->init_devid->data, port->init_devid->len); 9998 } else 9999 iid_len = 0; 10000 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 10001 pdc = (struct scsi_vpd_port_designation_cont *) 10002 (&pd->initiator_transportid[iid_len]); 10003 if (port->port_devid && g == pg) { 10004 id_len = port->port_devid->len; 10005 memcpy(pdc->target_port_descriptors, 10006 port->port_devid->data, port->port_devid->len); 10007 } else 10008 id_len = 0; 10009 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 10010 pd = (struct scsi_vpd_port_designation *) 10011 ((uint8_t *)pdc->target_port_descriptors + id_len); 10012 } 10013 } 10014 mtx_unlock(&softc->ctl_lock); 10015 10016 ctl_set_success(ctsio); 10017 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10018 ctsio->be_move_done = ctl_config_move_done; 10019 ctl_datamove((union ctl_io *)ctsio); 10020 return (CTL_RETVAL_COMPLETE); 10021} 10022 10023static int 10024ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 10025{ 10026 struct scsi_vpd_block_limits *bl_ptr; 10027 struct ctl_lun *lun; 10028 int bs; 10029 10030 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10031 10032 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 10033 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 10034 ctsio->kern_sg_entries = 0; 10035 10036 if (sizeof(*bl_ptr) < alloc_len) { 10037 ctsio->residual = alloc_len - sizeof(*bl_ptr); 10038 ctsio->kern_data_len = sizeof(*bl_ptr); 10039 ctsio->kern_total_len = sizeof(*bl_ptr); 10040 } else { 10041 ctsio->residual = 0; 10042 ctsio->kern_data_len = alloc_len; 10043 ctsio->kern_total_len = alloc_len; 10044 } 10045 ctsio->kern_data_resid = 0; 10046 ctsio->kern_rel_offset = 0; 10047 ctsio->kern_sg_entries = 0; 10048 10049 /* 10050 * The control device is always connected. The disk device, on the 10051 * other hand, may not be online all the time. Need to change this 10052 * to figure out whether the disk device is actually online or not. 10053 */ 10054 if (lun != NULL) 10055 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10056 lun->be_lun->lun_type; 10057 else 10058 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10059 10060 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 10061 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 10062 bl_ptr->max_cmp_write_len = 0xff; 10063 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 10064 if (lun != NULL) { 10065 bs = lun->be_lun->blocksize; 10066 scsi_ulto4b(MAXPHYS / bs, bl_ptr->opt_txfer_len); 10067 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10068 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 10069 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 10070 if (lun->be_lun->pblockexp != 0) { 10071 scsi_ulto4b((1 << lun->be_lun->pblockexp), 10072 bl_ptr->opt_unmap_grain); 10073 scsi_ulto4b(0x80000000 | lun->be_lun->pblockoff, 10074 bl_ptr->unmap_grain_align); 10075 } 10076 } 10077 scsi_ulto4b(lun->be_lun->atomicblock, 10078 bl_ptr->max_atomic_transfer_length); 10079 scsi_ulto4b(0, bl_ptr->atomic_alignment); 10080 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 10081 } 10082 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 10083 10084 ctl_set_success(ctsio); 10085 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10086 ctsio->be_move_done = ctl_config_move_done; 10087 ctl_datamove((union ctl_io *)ctsio); 10088 return (CTL_RETVAL_COMPLETE); 10089} 10090 10091static int 10092ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 10093{ 10094 struct scsi_vpd_block_device_characteristics *bdc_ptr; 10095 struct ctl_lun *lun; 10096 const char *value; 10097 u_int i; 10098 10099 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10100 10101 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 10102 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 10103 ctsio->kern_sg_entries = 0; 10104 10105 if (sizeof(*bdc_ptr) < alloc_len) { 10106 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 10107 ctsio->kern_data_len = sizeof(*bdc_ptr); 10108 ctsio->kern_total_len = sizeof(*bdc_ptr); 10109 } else { 10110 ctsio->residual = 0; 10111 ctsio->kern_data_len = alloc_len; 10112 ctsio->kern_total_len = alloc_len; 10113 } 10114 ctsio->kern_data_resid = 0; 10115 ctsio->kern_rel_offset = 0; 10116 ctsio->kern_sg_entries = 0; 10117 10118 /* 10119 * The control device is always connected. The disk device, on the 10120 * other hand, may not be online all the time. Need to change this 10121 * to figure out whether the disk device is actually online or not. 10122 */ 10123 if (lun != NULL) 10124 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10125 lun->be_lun->lun_type; 10126 else 10127 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10128 bdc_ptr->page_code = SVPD_BDC; 10129 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 10130 if (lun != NULL && 10131 (value = ctl_get_opt(&lun->be_lun->options, "rpm")) != NULL) 10132 i = strtol(value, NULL, 0); 10133 else 10134 i = CTL_DEFAULT_ROTATION_RATE; 10135 scsi_ulto2b(i, bdc_ptr->medium_rotation_rate); 10136 if (lun != NULL && 10137 (value = ctl_get_opt(&lun->be_lun->options, "formfactor")) != NULL) 10138 i = strtol(value, NULL, 0); 10139 else 10140 i = 0; 10141 bdc_ptr->wab_wac_ff = (i & 0x0f); 10142 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 10143 10144 ctl_set_success(ctsio); 10145 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10146 ctsio->be_move_done = ctl_config_move_done; 10147 ctl_datamove((union ctl_io *)ctsio); 10148 return (CTL_RETVAL_COMPLETE); 10149} 10150 10151static int 10152ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10153{ 10154 struct scsi_vpd_logical_block_prov *lbp_ptr; 10155 struct ctl_lun *lun; 10156 10157 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10158 10159 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10160 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10161 ctsio->kern_sg_entries = 0; 10162 10163 if (sizeof(*lbp_ptr) < alloc_len) { 10164 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10165 ctsio->kern_data_len = sizeof(*lbp_ptr); 10166 ctsio->kern_total_len = sizeof(*lbp_ptr); 10167 } else { 10168 ctsio->residual = 0; 10169 ctsio->kern_data_len = alloc_len; 10170 ctsio->kern_total_len = alloc_len; 10171 } 10172 ctsio->kern_data_resid = 0; 10173 ctsio->kern_rel_offset = 0; 10174 ctsio->kern_sg_entries = 0; 10175 10176 /* 10177 * The control device is always connected. The disk device, on the 10178 * other hand, may not be online all the time. Need to change this 10179 * to figure out whether the disk device is actually online or not. 10180 */ 10181 if (lun != NULL) 10182 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10183 lun->be_lun->lun_type; 10184 else 10185 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10186 10187 lbp_ptr->page_code = SVPD_LBP; 10188 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10189 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10190 lbp_ptr->threshold_exponent = CTL_LBP_EXPONENT; 10191 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10192 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10193 lbp_ptr->prov_type = SVPD_LBP_THIN; 10194 } 10195 10196 ctl_set_success(ctsio); 10197 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10198 ctsio->be_move_done = ctl_config_move_done; 10199 ctl_datamove((union ctl_io *)ctsio); 10200 return (CTL_RETVAL_COMPLETE); 10201} 10202 10203static int 10204ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10205{ 10206 struct scsi_inquiry *cdb; 10207 int alloc_len, retval; 10208 10209 cdb = (struct scsi_inquiry *)ctsio->cdb; 10210 10211 retval = CTL_RETVAL_COMPLETE; 10212 10213 alloc_len = scsi_2btoul(cdb->length); 10214 10215 switch (cdb->page_code) { 10216 case SVPD_SUPPORTED_PAGES: 10217 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10218 break; 10219 case SVPD_UNIT_SERIAL_NUMBER: 10220 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10221 break; 10222 case SVPD_DEVICE_ID: 10223 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10224 break; 10225 case SVPD_EXTENDED_INQUIRY_DATA: 10226 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10227 break; 10228 case SVPD_MODE_PAGE_POLICY: 10229 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10230 break; 10231 case SVPD_SCSI_PORTS: 10232 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10233 break; 10234 case SVPD_SCSI_TPC: 10235 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10236 break; 10237 case SVPD_BLOCK_LIMITS: 10238 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10239 break; 10240 case SVPD_BDC: 10241 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10242 break; 10243 case SVPD_LBP: 10244 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10245 break; 10246 default: 10247 ctl_set_invalid_field(ctsio, 10248 /*sks_valid*/ 1, 10249 /*command*/ 1, 10250 /*field*/ 2, 10251 /*bit_valid*/ 0, 10252 /*bit*/ 0); 10253 ctl_done((union ctl_io *)ctsio); 10254 retval = CTL_RETVAL_COMPLETE; 10255 break; 10256 } 10257 10258 return (retval); 10259} 10260 10261static int 10262ctl_inquiry_std(struct ctl_scsiio *ctsio) 10263{ 10264 struct scsi_inquiry_data *inq_ptr; 10265 struct scsi_inquiry *cdb; 10266 struct ctl_softc *ctl_softc; 10267 struct ctl_lun *lun; 10268 char *val; 10269 uint32_t alloc_len, data_len; 10270 ctl_port_type port_type; 10271 10272 ctl_softc = control_softc; 10273 10274 /* 10275 * Figure out whether we're talking to a Fibre Channel port or not. 10276 * We treat the ioctl front end, and any SCSI adapters, as packetized 10277 * SCSI front ends. 10278 */ 10279 port_type = ctl_softc->ctl_ports[ 10280 ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]->port_type; 10281 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10282 port_type = CTL_PORT_SCSI; 10283 10284 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10285 cdb = (struct scsi_inquiry *)ctsio->cdb; 10286 alloc_len = scsi_2btoul(cdb->length); 10287 10288 /* 10289 * We malloc the full inquiry data size here and fill it 10290 * in. If the user only asks for less, we'll give him 10291 * that much. 10292 */ 10293 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10294 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10295 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10296 ctsio->kern_sg_entries = 0; 10297 ctsio->kern_data_resid = 0; 10298 ctsio->kern_rel_offset = 0; 10299 10300 if (data_len < alloc_len) { 10301 ctsio->residual = alloc_len - data_len; 10302 ctsio->kern_data_len = data_len; 10303 ctsio->kern_total_len = data_len; 10304 } else { 10305 ctsio->residual = 0; 10306 ctsio->kern_data_len = alloc_len; 10307 ctsio->kern_total_len = alloc_len; 10308 } 10309 10310 /* 10311 * If we have a LUN configured, report it as connected. Otherwise, 10312 * report that it is offline or no device is supported, depending 10313 * on the value of inquiry_pq_no_lun. 10314 * 10315 * According to the spec (SPC-4 r34), the peripheral qualifier 10316 * SID_QUAL_LU_OFFLINE (001b) is used in the following scenario: 10317 * 10318 * "A peripheral device having the specified peripheral device type 10319 * is not connected to this logical unit. However, the device 10320 * server is capable of supporting the specified peripheral device 10321 * type on this logical unit." 10322 * 10323 * According to the same spec, the peripheral qualifier 10324 * SID_QUAL_BAD_LU (011b) is used in this scenario: 10325 * 10326 * "The device server is not capable of supporting a peripheral 10327 * device on this logical unit. For this peripheral qualifier the 10328 * peripheral device type shall be set to 1Fh. All other peripheral 10329 * device type values are reserved for this peripheral qualifier." 10330 * 10331 * Given the text, it would seem that we probably want to report that 10332 * the LUN is offline here. There is no LUN connected, but we can 10333 * support a LUN at the given LUN number. 10334 * 10335 * In the real world, though, it sounds like things are a little 10336 * different: 10337 * 10338 * - Linux, when presented with a LUN with the offline peripheral 10339 * qualifier, will create an sg driver instance for it. So when 10340 * you attach it to CTL, you wind up with a ton of sg driver 10341 * instances. (One for every LUN that Linux bothered to probe.) 10342 * Linux does this despite the fact that it issues a REPORT LUNs 10343 * to LUN 0 to get the inventory of supported LUNs. 10344 * 10345 * - There is other anecdotal evidence (from Emulex folks) about 10346 * arrays that use the offline peripheral qualifier for LUNs that 10347 * are on the "passive" path in an active/passive array. 10348 * 10349 * So the solution is provide a hopefully reasonable default 10350 * (return bad/no LUN) and allow the user to change the behavior 10351 * with a tunable/sysctl variable. 10352 */ 10353 if (lun != NULL) 10354 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10355 lun->be_lun->lun_type; 10356 else if (ctl_softc->inquiry_pq_no_lun == 0) 10357 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10358 else 10359 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10360 10361 /* RMB in byte 2 is 0 */ 10362 inq_ptr->version = SCSI_REV_SPC4; 10363 10364 /* 10365 * According to SAM-3, even if a device only supports a single 10366 * level of LUN addressing, it should still set the HISUP bit: 10367 * 10368 * 4.9.1 Logical unit numbers overview 10369 * 10370 * All logical unit number formats described in this standard are 10371 * hierarchical in structure even when only a single level in that 10372 * hierarchy is used. The HISUP bit shall be set to one in the 10373 * standard INQUIRY data (see SPC-2) when any logical unit number 10374 * format described in this standard is used. Non-hierarchical 10375 * formats are outside the scope of this standard. 10376 * 10377 * Therefore we set the HiSup bit here. 10378 * 10379 * The reponse format is 2, per SPC-3. 10380 */ 10381 inq_ptr->response_format = SID_HiSup | 2; 10382 10383 inq_ptr->additional_length = data_len - 10384 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10385 CTL_DEBUG_PRINT(("additional_length = %d\n", 10386 inq_ptr->additional_length)); 10387 10388 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10389 /* 16 bit addressing */ 10390 if (port_type == CTL_PORT_SCSI) 10391 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10392 /* XXX set the SID_MultiP bit here if we're actually going to 10393 respond on multiple ports */ 10394 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10395 10396 /* 16 bit data bus, synchronous transfers */ 10397 if (port_type == CTL_PORT_SCSI) 10398 inq_ptr->flags = SID_WBus16 | SID_Sync; 10399 /* 10400 * XXX KDM do we want to support tagged queueing on the control 10401 * device at all? 10402 */ 10403 if ((lun == NULL) 10404 || (lun->be_lun->lun_type != T_PROCESSOR)) 10405 inq_ptr->flags |= SID_CmdQue; 10406 /* 10407 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10408 * We have 8 bytes for the vendor name, and 16 bytes for the device 10409 * name and 4 bytes for the revision. 10410 */ 10411 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10412 "vendor")) == NULL) { 10413 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10414 } else { 10415 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10416 strncpy(inq_ptr->vendor, val, 10417 min(sizeof(inq_ptr->vendor), strlen(val))); 10418 } 10419 if (lun == NULL) { 10420 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10421 sizeof(inq_ptr->product)); 10422 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10423 switch (lun->be_lun->lun_type) { 10424 case T_DIRECT: 10425 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10426 sizeof(inq_ptr->product)); 10427 break; 10428 case T_PROCESSOR: 10429 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10430 sizeof(inq_ptr->product)); 10431 break; 10432 default: 10433 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10434 sizeof(inq_ptr->product)); 10435 break; 10436 } 10437 } else { 10438 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10439 strncpy(inq_ptr->product, val, 10440 min(sizeof(inq_ptr->product), strlen(val))); 10441 } 10442 10443 /* 10444 * XXX make this a macro somewhere so it automatically gets 10445 * incremented when we make changes. 10446 */ 10447 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10448 "revision")) == NULL) { 10449 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10450 } else { 10451 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10452 strncpy(inq_ptr->revision, val, 10453 min(sizeof(inq_ptr->revision), strlen(val))); 10454 } 10455 10456 /* 10457 * For parallel SCSI, we support double transition and single 10458 * transition clocking. We also support QAS (Quick Arbitration 10459 * and Selection) and Information Unit transfers on both the 10460 * control and array devices. 10461 */ 10462 if (port_type == CTL_PORT_SCSI) 10463 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10464 SID_SPI_IUS; 10465 10466 /* SAM-5 (no version claimed) */ 10467 scsi_ulto2b(0x00A0, inq_ptr->version1); 10468 /* SPC-4 (no version claimed) */ 10469 scsi_ulto2b(0x0460, inq_ptr->version2); 10470 if (port_type == CTL_PORT_FC) { 10471 /* FCP-2 ANSI INCITS.350:2003 */ 10472 scsi_ulto2b(0x0917, inq_ptr->version3); 10473 } else if (port_type == CTL_PORT_SCSI) { 10474 /* SPI-4 ANSI INCITS.362:200x */ 10475 scsi_ulto2b(0x0B56, inq_ptr->version3); 10476 } else if (port_type == CTL_PORT_ISCSI) { 10477 /* iSCSI (no version claimed) */ 10478 scsi_ulto2b(0x0960, inq_ptr->version3); 10479 } else if (port_type == CTL_PORT_SAS) { 10480 /* SAS (no version claimed) */ 10481 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10482 } 10483 10484 if (lun == NULL) { 10485 /* SBC-4 (no version claimed) */ 10486 scsi_ulto2b(0x0600, inq_ptr->version4); 10487 } else { 10488 switch (lun->be_lun->lun_type) { 10489 case T_DIRECT: 10490 /* SBC-4 (no version claimed) */ 10491 scsi_ulto2b(0x0600, inq_ptr->version4); 10492 break; 10493 case T_PROCESSOR: 10494 default: 10495 break; 10496 } 10497 } 10498 10499 ctl_set_success(ctsio); 10500 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10501 ctsio->be_move_done = ctl_config_move_done; 10502 ctl_datamove((union ctl_io *)ctsio); 10503 return (CTL_RETVAL_COMPLETE); 10504} 10505 10506int 10507ctl_inquiry(struct ctl_scsiio *ctsio) 10508{ 10509 struct scsi_inquiry *cdb; 10510 int retval; 10511 10512 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10513 10514 cdb = (struct scsi_inquiry *)ctsio->cdb; 10515 if (cdb->byte2 & SI_EVPD) 10516 retval = ctl_inquiry_evpd(ctsio); 10517 else if (cdb->page_code == 0) 10518 retval = ctl_inquiry_std(ctsio); 10519 else { 10520 ctl_set_invalid_field(ctsio, 10521 /*sks_valid*/ 1, 10522 /*command*/ 1, 10523 /*field*/ 2, 10524 /*bit_valid*/ 0, 10525 /*bit*/ 0); 10526 ctl_done((union ctl_io *)ctsio); 10527 return (CTL_RETVAL_COMPLETE); 10528 } 10529 10530 return (retval); 10531} 10532 10533/* 10534 * For known CDB types, parse the LBA and length. 10535 */ 10536static int 10537ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10538{ 10539 if (io->io_hdr.io_type != CTL_IO_SCSI) 10540 return (1); 10541 10542 switch (io->scsiio.cdb[0]) { 10543 case COMPARE_AND_WRITE: { 10544 struct scsi_compare_and_write *cdb; 10545 10546 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10547 10548 *lba = scsi_8btou64(cdb->addr); 10549 *len = cdb->length; 10550 break; 10551 } 10552 case READ_6: 10553 case WRITE_6: { 10554 struct scsi_rw_6 *cdb; 10555 10556 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10557 10558 *lba = scsi_3btoul(cdb->addr); 10559 /* only 5 bits are valid in the most significant address byte */ 10560 *lba &= 0x1fffff; 10561 *len = cdb->length; 10562 break; 10563 } 10564 case READ_10: 10565 case WRITE_10: { 10566 struct scsi_rw_10 *cdb; 10567 10568 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10569 10570 *lba = scsi_4btoul(cdb->addr); 10571 *len = scsi_2btoul(cdb->length); 10572 break; 10573 } 10574 case WRITE_VERIFY_10: { 10575 struct scsi_write_verify_10 *cdb; 10576 10577 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10578 10579 *lba = scsi_4btoul(cdb->addr); 10580 *len = scsi_2btoul(cdb->length); 10581 break; 10582 } 10583 case READ_12: 10584 case WRITE_12: { 10585 struct scsi_rw_12 *cdb; 10586 10587 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10588 10589 *lba = scsi_4btoul(cdb->addr); 10590 *len = scsi_4btoul(cdb->length); 10591 break; 10592 } 10593 case WRITE_VERIFY_12: { 10594 struct scsi_write_verify_12 *cdb; 10595 10596 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10597 10598 *lba = scsi_4btoul(cdb->addr); 10599 *len = scsi_4btoul(cdb->length); 10600 break; 10601 } 10602 case READ_16: 10603 case WRITE_16: 10604 case WRITE_ATOMIC_16: { 10605 struct scsi_rw_16 *cdb; 10606 10607 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10608 10609 *lba = scsi_8btou64(cdb->addr); 10610 *len = scsi_4btoul(cdb->length); 10611 break; 10612 } 10613 case WRITE_VERIFY_16: { 10614 struct scsi_write_verify_16 *cdb; 10615 10616 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10617 10618 *lba = scsi_8btou64(cdb->addr); 10619 *len = scsi_4btoul(cdb->length); 10620 break; 10621 } 10622 case WRITE_SAME_10: { 10623 struct scsi_write_same_10 *cdb; 10624 10625 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10626 10627 *lba = scsi_4btoul(cdb->addr); 10628 *len = scsi_2btoul(cdb->length); 10629 break; 10630 } 10631 case WRITE_SAME_16: { 10632 struct scsi_write_same_16 *cdb; 10633 10634 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10635 10636 *lba = scsi_8btou64(cdb->addr); 10637 *len = scsi_4btoul(cdb->length); 10638 break; 10639 } 10640 case VERIFY_10: { 10641 struct scsi_verify_10 *cdb; 10642 10643 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10644 10645 *lba = scsi_4btoul(cdb->addr); 10646 *len = scsi_2btoul(cdb->length); 10647 break; 10648 } 10649 case VERIFY_12: { 10650 struct scsi_verify_12 *cdb; 10651 10652 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10653 10654 *lba = scsi_4btoul(cdb->addr); 10655 *len = scsi_4btoul(cdb->length); 10656 break; 10657 } 10658 case VERIFY_16: { 10659 struct scsi_verify_16 *cdb; 10660 10661 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10662 10663 *lba = scsi_8btou64(cdb->addr); 10664 *len = scsi_4btoul(cdb->length); 10665 break; 10666 } 10667 case UNMAP: { 10668 *lba = 0; 10669 *len = UINT64_MAX; 10670 break; 10671 } 10672 default: 10673 return (1); 10674 break; /* NOTREACHED */ 10675 } 10676 10677 return (0); 10678} 10679 10680static ctl_action 10681ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2) 10682{ 10683 uint64_t endlba1, endlba2; 10684 10685 endlba1 = lba1 + len1 - 1; 10686 endlba2 = lba2 + len2 - 1; 10687 10688 if ((endlba1 < lba2) 10689 || (endlba2 < lba1)) 10690 return (CTL_ACTION_PASS); 10691 else 10692 return (CTL_ACTION_BLOCK); 10693} 10694 10695static int 10696ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10697{ 10698 struct ctl_ptr_len_flags *ptrlen; 10699 struct scsi_unmap_desc *buf, *end, *range; 10700 uint64_t lba; 10701 uint32_t len; 10702 10703 /* If not UNMAP -- go other way. */ 10704 if (io->io_hdr.io_type != CTL_IO_SCSI || 10705 io->scsiio.cdb[0] != UNMAP) 10706 return (CTL_ACTION_ERROR); 10707 10708 /* If UNMAP without data -- block and wait for data. */ 10709 ptrlen = (struct ctl_ptr_len_flags *) 10710 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10711 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10712 ptrlen->ptr == NULL) 10713 return (CTL_ACTION_BLOCK); 10714 10715 /* UNMAP with data -- check for collision. */ 10716 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10717 end = buf + ptrlen->len / sizeof(*buf); 10718 for (range = buf; range < end; range++) { 10719 lba = scsi_8btou64(range->lba); 10720 len = scsi_4btoul(range->length); 10721 if ((lba < lba2 + len2) && (lba + len > lba2)) 10722 return (CTL_ACTION_BLOCK); 10723 } 10724 return (CTL_ACTION_PASS); 10725} 10726 10727static ctl_action 10728ctl_extent_check(union ctl_io *io1, union ctl_io *io2) 10729{ 10730 uint64_t lba1, lba2; 10731 uint64_t len1, len2; 10732 int retval; 10733 10734 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10735 return (CTL_ACTION_ERROR); 10736 10737 retval = ctl_extent_check_unmap(io2, lba1, len1); 10738 if (retval != CTL_ACTION_ERROR) 10739 return (retval); 10740 10741 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10742 return (CTL_ACTION_ERROR); 10743 10744 return (ctl_extent_check_lba(lba1, len1, lba2, len2)); 10745} 10746 10747static ctl_action 10748ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10749 union ctl_io *ooa_io) 10750{ 10751 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10752 ctl_serialize_action *serialize_row; 10753 10754 /* 10755 * The initiator attempted multiple untagged commands at the same 10756 * time. Can't do that. 10757 */ 10758 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10759 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10760 && ((pending_io->io_hdr.nexus.targ_port == 10761 ooa_io->io_hdr.nexus.targ_port) 10762 && (pending_io->io_hdr.nexus.initid.id == 10763 ooa_io->io_hdr.nexus.initid.id)) 10764 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10765 return (CTL_ACTION_OVERLAP); 10766 10767 /* 10768 * The initiator attempted to send multiple tagged commands with 10769 * the same ID. (It's fine if different initiators have the same 10770 * tag ID.) 10771 * 10772 * Even if all of those conditions are true, we don't kill the I/O 10773 * if the command ahead of us has been aborted. We won't end up 10774 * sending it to the FETD, and it's perfectly legal to resend a 10775 * command with the same tag number as long as the previous 10776 * instance of this tag number has been aborted somehow. 10777 */ 10778 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10779 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10780 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10781 && ((pending_io->io_hdr.nexus.targ_port == 10782 ooa_io->io_hdr.nexus.targ_port) 10783 && (pending_io->io_hdr.nexus.initid.id == 10784 ooa_io->io_hdr.nexus.initid.id)) 10785 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10786 return (CTL_ACTION_OVERLAP_TAG); 10787 10788 /* 10789 * If we get a head of queue tag, SAM-3 says that we should 10790 * immediately execute it. 10791 * 10792 * What happens if this command would normally block for some other 10793 * reason? e.g. a request sense with a head of queue tag 10794 * immediately after a write. Normally that would block, but this 10795 * will result in its getting executed immediately... 10796 * 10797 * We currently return "pass" instead of "skip", so we'll end up 10798 * going through the rest of the queue to check for overlapped tags. 10799 * 10800 * XXX KDM check for other types of blockage first?? 10801 */ 10802 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10803 return (CTL_ACTION_PASS); 10804 10805 /* 10806 * Ordered tags have to block until all items ahead of them 10807 * have completed. If we get called with an ordered tag, we always 10808 * block, if something else is ahead of us in the queue. 10809 */ 10810 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 10811 return (CTL_ACTION_BLOCK); 10812 10813 /* 10814 * Simple tags get blocked until all head of queue and ordered tags 10815 * ahead of them have completed. I'm lumping untagged commands in 10816 * with simple tags here. XXX KDM is that the right thing to do? 10817 */ 10818 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10819 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 10820 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10821 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 10822 return (CTL_ACTION_BLOCK); 10823 10824 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 10825 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 10826 10827 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 10828 10829 switch (serialize_row[pending_entry->seridx]) { 10830 case CTL_SER_BLOCK: 10831 return (CTL_ACTION_BLOCK); 10832 case CTL_SER_EXTENT: 10833 return (ctl_extent_check(pending_io, ooa_io)); 10834 case CTL_SER_EXTENTOPT: 10835 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 10836 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 10837 return (ctl_extent_check(pending_io, ooa_io)); 10838 /* FALLTHROUGH */ 10839 case CTL_SER_PASS: 10840 return (CTL_ACTION_PASS); 10841 case CTL_SER_BLOCKOPT: 10842 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 10843 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 10844 return (CTL_ACTION_BLOCK); 10845 return (CTL_ACTION_PASS); 10846 case CTL_SER_SKIP: 10847 return (CTL_ACTION_SKIP); 10848 default: 10849 panic("invalid serialization value %d", 10850 serialize_row[pending_entry->seridx]); 10851 } 10852 10853 return (CTL_ACTION_ERROR); 10854} 10855 10856/* 10857 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 10858 * Assumptions: 10859 * - pending_io is generally either incoming, or on the blocked queue 10860 * - starting I/O is the I/O we want to start the check with. 10861 */ 10862static ctl_action 10863ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 10864 union ctl_io *starting_io) 10865{ 10866 union ctl_io *ooa_io; 10867 ctl_action action; 10868 10869 mtx_assert(&lun->lun_lock, MA_OWNED); 10870 10871 /* 10872 * Run back along the OOA queue, starting with the current 10873 * blocked I/O and going through every I/O before it on the 10874 * queue. If starting_io is NULL, we'll just end up returning 10875 * CTL_ACTION_PASS. 10876 */ 10877 for (ooa_io = starting_io; ooa_io != NULL; 10878 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 10879 ooa_links)){ 10880 10881 /* 10882 * This routine just checks to see whether 10883 * cur_blocked is blocked by ooa_io, which is ahead 10884 * of it in the queue. It doesn't queue/dequeue 10885 * cur_blocked. 10886 */ 10887 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 10888 switch (action) { 10889 case CTL_ACTION_BLOCK: 10890 case CTL_ACTION_OVERLAP: 10891 case CTL_ACTION_OVERLAP_TAG: 10892 case CTL_ACTION_SKIP: 10893 case CTL_ACTION_ERROR: 10894 return (action); 10895 break; /* NOTREACHED */ 10896 case CTL_ACTION_PASS: 10897 break; 10898 default: 10899 panic("invalid action %d", action); 10900 break; /* NOTREACHED */ 10901 } 10902 } 10903 10904 return (CTL_ACTION_PASS); 10905} 10906 10907/* 10908 * Assumptions: 10909 * - An I/O has just completed, and has been removed from the per-LUN OOA 10910 * queue, so some items on the blocked queue may now be unblocked. 10911 */ 10912static int 10913ctl_check_blocked(struct ctl_lun *lun) 10914{ 10915 union ctl_io *cur_blocked, *next_blocked; 10916 10917 mtx_assert(&lun->lun_lock, MA_OWNED); 10918 10919 /* 10920 * Run forward from the head of the blocked queue, checking each 10921 * entry against the I/Os prior to it on the OOA queue to see if 10922 * there is still any blockage. 10923 * 10924 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 10925 * with our removing a variable on it while it is traversing the 10926 * list. 10927 */ 10928 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 10929 cur_blocked != NULL; cur_blocked = next_blocked) { 10930 union ctl_io *prev_ooa; 10931 ctl_action action; 10932 10933 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 10934 blocked_links); 10935 10936 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 10937 ctl_ooaq, ooa_links); 10938 10939 /* 10940 * If cur_blocked happens to be the first item in the OOA 10941 * queue now, prev_ooa will be NULL, and the action 10942 * returned will just be CTL_ACTION_PASS. 10943 */ 10944 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 10945 10946 switch (action) { 10947 case CTL_ACTION_BLOCK: 10948 /* Nothing to do here, still blocked */ 10949 break; 10950 case CTL_ACTION_OVERLAP: 10951 case CTL_ACTION_OVERLAP_TAG: 10952 /* 10953 * This shouldn't happen! In theory we've already 10954 * checked this command for overlap... 10955 */ 10956 break; 10957 case CTL_ACTION_PASS: 10958 case CTL_ACTION_SKIP: { 10959 struct ctl_softc *softc; 10960 const struct ctl_cmd_entry *entry; 10961 int isc_retval; 10962 10963 /* 10964 * The skip case shouldn't happen, this transaction 10965 * should have never made it onto the blocked queue. 10966 */ 10967 /* 10968 * This I/O is no longer blocked, we can remove it 10969 * from the blocked queue. Since this is a TAILQ 10970 * (doubly linked list), we can do O(1) removals 10971 * from any place on the list. 10972 */ 10973 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 10974 blocked_links); 10975 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 10976 10977 if (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC){ 10978 /* 10979 * Need to send IO back to original side to 10980 * run 10981 */ 10982 union ctl_ha_msg msg_info; 10983 10984 msg_info.hdr.original_sc = 10985 cur_blocked->io_hdr.original_sc; 10986 msg_info.hdr.serializing_sc = cur_blocked; 10987 msg_info.hdr.msg_type = CTL_MSG_R2R; 10988 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 10989 &msg_info, sizeof(msg_info), 0)) > 10990 CTL_HA_STATUS_SUCCESS) { 10991 printf("CTL:Check Blocked error from " 10992 "ctl_ha_msg_send %d\n", 10993 isc_retval); 10994 } 10995 break; 10996 } 10997 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 10998 softc = control_softc; 10999 11000 /* 11001 * Check this I/O for LUN state changes that may 11002 * have happened while this command was blocked. 11003 * The LUN state may have been changed by a command 11004 * ahead of us in the queue, so we need to re-check 11005 * for any states that can be caused by SCSI 11006 * commands. 11007 */ 11008 if (ctl_scsiio_lun_check(softc, lun, entry, 11009 &cur_blocked->scsiio) == 0) { 11010 cur_blocked->io_hdr.flags |= 11011 CTL_FLAG_IS_WAS_ON_RTR; 11012 ctl_enqueue_rtr(cur_blocked); 11013 } else 11014 ctl_done(cur_blocked); 11015 break; 11016 } 11017 default: 11018 /* 11019 * This probably shouldn't happen -- we shouldn't 11020 * get CTL_ACTION_ERROR, or anything else. 11021 */ 11022 break; 11023 } 11024 } 11025 11026 return (CTL_RETVAL_COMPLETE); 11027} 11028 11029/* 11030 * This routine (with one exception) checks LUN flags that can be set by 11031 * commands ahead of us in the OOA queue. These flags have to be checked 11032 * when a command initially comes in, and when we pull a command off the 11033 * blocked queue and are preparing to execute it. The reason we have to 11034 * check these flags for commands on the blocked queue is that the LUN 11035 * state may have been changed by a command ahead of us while we're on the 11036 * blocked queue. 11037 * 11038 * Ordering is somewhat important with these checks, so please pay 11039 * careful attention to the placement of any new checks. 11040 */ 11041static int 11042ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 11043 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11044{ 11045 int retval; 11046 uint32_t residx; 11047 11048 retval = 0; 11049 11050 mtx_assert(&lun->lun_lock, MA_OWNED); 11051 11052 /* 11053 * If this shelf is a secondary shelf controller, we have to reject 11054 * any media access commands. 11055 */ 11056 if ((ctl_softc->flags & CTL_FLAG_ACTIVE_SHELF) == 0 && 11057 (entry->flags & CTL_CMD_FLAG_OK_ON_SECONDARY) == 0) { 11058 ctl_set_lun_standby(ctsio); 11059 retval = 1; 11060 goto bailout; 11061 } 11062 11063 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11064 if (lun->flags & CTL_LUN_READONLY) { 11065 ctl_set_sense(ctsio, /*current_error*/ 1, 11066 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11067 /*asc*/ 0x27, /*ascq*/ 0x01, SSD_ELEM_NONE); 11068 retval = 1; 11069 goto bailout; 11070 } 11071 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT] 11072 .eca_and_aen & SCP_SWP) != 0) { 11073 ctl_set_sense(ctsio, /*current_error*/ 1, 11074 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11075 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11076 retval = 1; 11077 goto bailout; 11078 } 11079 } 11080 11081 /* 11082 * Check for a reservation conflict. If this command isn't allowed 11083 * even on reserved LUNs, and if this initiator isn't the one who 11084 * reserved us, reject the command with a reservation conflict. 11085 */ 11086 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 11087 if ((lun->flags & CTL_LUN_RESERVED) 11088 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11089 if (lun->res_idx != residx) { 11090 ctl_set_reservation_conflict(ctsio); 11091 retval = 1; 11092 goto bailout; 11093 } 11094 } 11095 11096 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0 || 11097 (entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV)) { 11098 /* No reservation or command is allowed. */; 11099 } else if ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_WRESV) && 11100 (lun->res_type == SPR_TYPE_WR_EX || 11101 lun->res_type == SPR_TYPE_WR_EX_RO || 11102 lun->res_type == SPR_TYPE_WR_EX_AR)) { 11103 /* The command is allowed for Write Exclusive resv. */; 11104 } else { 11105 /* 11106 * if we aren't registered or it's a res holder type 11107 * reservation and this isn't the res holder then set a 11108 * conflict. 11109 */ 11110 if (ctl_get_prkey(lun, residx) == 0 11111 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 11112 ctl_set_reservation_conflict(ctsio); 11113 retval = 1; 11114 goto bailout; 11115 } 11116 11117 } 11118 11119 if ((lun->flags & CTL_LUN_OFFLINE) 11120 && ((entry->flags & CTL_CMD_FLAG_OK_ON_OFFLINE) == 0)) { 11121 ctl_set_lun_not_ready(ctsio); 11122 retval = 1; 11123 goto bailout; 11124 } 11125 11126 /* 11127 * If the LUN is stopped, see if this particular command is allowed 11128 * for a stopped lun. Otherwise, reject it with 0x04,0x02. 11129 */ 11130 if ((lun->flags & CTL_LUN_STOPPED) 11131 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 11132 /* "Logical unit not ready, initializing cmd. required" */ 11133 ctl_set_lun_stopped(ctsio); 11134 retval = 1; 11135 goto bailout; 11136 } 11137 11138 if ((lun->flags & CTL_LUN_INOPERABLE) 11139 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 11140 /* "Medium format corrupted" */ 11141 ctl_set_medium_format_corrupted(ctsio); 11142 retval = 1; 11143 goto bailout; 11144 } 11145 11146bailout: 11147 return (retval); 11148 11149} 11150 11151static void 11152ctl_failover_io(union ctl_io *io, int have_lock) 11153{ 11154 ctl_set_busy(&io->scsiio); 11155 ctl_done(io); 11156} 11157 11158static void 11159ctl_failover(void) 11160{ 11161 struct ctl_lun *lun; 11162 struct ctl_softc *ctl_softc; 11163 union ctl_io *next_io, *pending_io; 11164 union ctl_io *io; 11165 int lun_idx; 11166 int i; 11167 11168 ctl_softc = control_softc; 11169 11170 mtx_lock(&ctl_softc->ctl_lock); 11171 /* 11172 * Remove any cmds from the other SC from the rtr queue. These 11173 * will obviously only be for LUNs for which we're the primary. 11174 * We can't send status or get/send data for these commands. 11175 * Since they haven't been executed yet, we can just remove them. 11176 * We'll either abort them or delete them below, depending on 11177 * which HA mode we're in. 11178 */ 11179#ifdef notyet 11180 mtx_lock(&ctl_softc->queue_lock); 11181 for (io = (union ctl_io *)STAILQ_FIRST(&ctl_softc->rtr_queue); 11182 io != NULL; io = next_io) { 11183 next_io = (union ctl_io *)STAILQ_NEXT(&io->io_hdr, links); 11184 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11185 STAILQ_REMOVE(&ctl_softc->rtr_queue, &io->io_hdr, 11186 ctl_io_hdr, links); 11187 } 11188 mtx_unlock(&ctl_softc->queue_lock); 11189#endif 11190 11191 for (lun_idx=0; lun_idx < ctl_softc->num_luns; lun_idx++) { 11192 lun = ctl_softc->ctl_luns[lun_idx]; 11193 if (lun==NULL) 11194 continue; 11195 11196 /* 11197 * Processor LUNs are primary on both sides. 11198 * XXX will this always be true? 11199 */ 11200 if (lun->be_lun->lun_type == T_PROCESSOR) 11201 continue; 11202 11203 if ((lun->flags & CTL_LUN_PRIMARY_SC) 11204 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11205 printf("FAILOVER: primary lun %d\n", lun_idx); 11206 /* 11207 * Remove all commands from the other SC. First from the 11208 * blocked queue then from the ooa queue. Once we have 11209 * removed them. Call ctl_check_blocked to see if there 11210 * is anything that can run. 11211 */ 11212 for (io = (union ctl_io *)TAILQ_FIRST( 11213 &lun->blocked_queue); io != NULL; io = next_io) { 11214 11215 next_io = (union ctl_io *)TAILQ_NEXT( 11216 &io->io_hdr, blocked_links); 11217 11218 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11219 TAILQ_REMOVE(&lun->blocked_queue, 11220 &io->io_hdr,blocked_links); 11221 io->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11222 TAILQ_REMOVE(&lun->ooa_queue, 11223 &io->io_hdr, ooa_links); 11224 11225 ctl_free_io(io); 11226 } 11227 } 11228 11229 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11230 io != NULL; io = next_io) { 11231 11232 next_io = (union ctl_io *)TAILQ_NEXT( 11233 &io->io_hdr, ooa_links); 11234 11235 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11236 11237 TAILQ_REMOVE(&lun->ooa_queue, 11238 &io->io_hdr, 11239 ooa_links); 11240 11241 ctl_free_io(io); 11242 } 11243 } 11244 ctl_check_blocked(lun); 11245 } else if ((lun->flags & CTL_LUN_PRIMARY_SC) 11246 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11247 11248 printf("FAILOVER: primary lun %d\n", lun_idx); 11249 /* 11250 * Abort all commands from the other SC. We can't 11251 * send status back for them now. These should get 11252 * cleaned up when they are completed or come out 11253 * for a datamove operation. 11254 */ 11255 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11256 io != NULL; io = next_io) { 11257 next_io = (union ctl_io *)TAILQ_NEXT( 11258 &io->io_hdr, ooa_links); 11259 11260 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11261 io->io_hdr.flags |= CTL_FLAG_ABORT; 11262 } 11263 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11264 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11265 11266 printf("FAILOVER: secondary lun %d\n", lun_idx); 11267 11268 lun->flags |= CTL_LUN_PRIMARY_SC; 11269 11270 /* 11271 * We send all I/O that was sent to this controller 11272 * and redirected to the other side back with 11273 * busy status, and have the initiator retry it. 11274 * Figuring out how much data has been transferred, 11275 * etc. and picking up where we left off would be 11276 * very tricky. 11277 * 11278 * XXX KDM need to remove I/O from the blocked 11279 * queue as well! 11280 */ 11281 for (pending_io = (union ctl_io *)TAILQ_FIRST( 11282 &lun->ooa_queue); pending_io != NULL; 11283 pending_io = next_io) { 11284 11285 next_io = (union ctl_io *)TAILQ_NEXT( 11286 &pending_io->io_hdr, ooa_links); 11287 11288 pending_io->io_hdr.flags &= 11289 ~CTL_FLAG_SENT_2OTHER_SC; 11290 11291 if (pending_io->io_hdr.flags & 11292 CTL_FLAG_IO_ACTIVE) { 11293 pending_io->io_hdr.flags |= 11294 CTL_FLAG_FAILOVER; 11295 } else { 11296 ctl_set_busy(&pending_io->scsiio); 11297 ctl_done(pending_io); 11298 } 11299 } 11300 11301 /* 11302 * Build Unit Attention 11303 */ 11304 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11305 lun->pending_ua[i] |= 11306 CTL_UA_ASYM_ACC_CHANGE; 11307 } 11308 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11309 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11310 printf("FAILOVER: secondary lun %d\n", lun_idx); 11311 /* 11312 * if the first io on the OOA is not on the RtR queue 11313 * add it. 11314 */ 11315 lun->flags |= CTL_LUN_PRIMARY_SC; 11316 11317 pending_io = (union ctl_io *)TAILQ_FIRST( 11318 &lun->ooa_queue); 11319 if (pending_io==NULL) { 11320 printf("Nothing on OOA queue\n"); 11321 continue; 11322 } 11323 11324 pending_io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11325 if ((pending_io->io_hdr.flags & 11326 CTL_FLAG_IS_WAS_ON_RTR) == 0) { 11327 pending_io->io_hdr.flags |= 11328 CTL_FLAG_IS_WAS_ON_RTR; 11329 ctl_enqueue_rtr(pending_io); 11330 } 11331#if 0 11332 else 11333 { 11334 printf("Tag 0x%04x is running\n", 11335 pending_io->scsiio.tag_num); 11336 } 11337#endif 11338 11339 next_io = (union ctl_io *)TAILQ_NEXT( 11340 &pending_io->io_hdr, ooa_links); 11341 for (pending_io=next_io; pending_io != NULL; 11342 pending_io = next_io) { 11343 pending_io->io_hdr.flags &= 11344 ~CTL_FLAG_SENT_2OTHER_SC; 11345 next_io = (union ctl_io *)TAILQ_NEXT( 11346 &pending_io->io_hdr, ooa_links); 11347 if (pending_io->io_hdr.flags & 11348 CTL_FLAG_IS_WAS_ON_RTR) { 11349#if 0 11350 printf("Tag 0x%04x is running\n", 11351 pending_io->scsiio.tag_num); 11352#endif 11353 continue; 11354 } 11355 11356 switch (ctl_check_ooa(lun, pending_io, 11357 (union ctl_io *)TAILQ_PREV( 11358 &pending_io->io_hdr, ctl_ooaq, 11359 ooa_links))) { 11360 11361 case CTL_ACTION_BLOCK: 11362 TAILQ_INSERT_TAIL(&lun->blocked_queue, 11363 &pending_io->io_hdr, 11364 blocked_links); 11365 pending_io->io_hdr.flags |= 11366 CTL_FLAG_BLOCKED; 11367 break; 11368 case CTL_ACTION_PASS: 11369 case CTL_ACTION_SKIP: 11370 pending_io->io_hdr.flags |= 11371 CTL_FLAG_IS_WAS_ON_RTR; 11372 ctl_enqueue_rtr(pending_io); 11373 break; 11374 case CTL_ACTION_OVERLAP: 11375 ctl_set_overlapped_cmd( 11376 (struct ctl_scsiio *)pending_io); 11377 ctl_done(pending_io); 11378 break; 11379 case CTL_ACTION_OVERLAP_TAG: 11380 ctl_set_overlapped_tag( 11381 (struct ctl_scsiio *)pending_io, 11382 pending_io->scsiio.tag_num & 0xff); 11383 ctl_done(pending_io); 11384 break; 11385 case CTL_ACTION_ERROR: 11386 default: 11387 ctl_set_internal_failure( 11388 (struct ctl_scsiio *)pending_io, 11389 0, // sks_valid 11390 0); //retry count 11391 ctl_done(pending_io); 11392 break; 11393 } 11394 } 11395 11396 /* 11397 * Build Unit Attention 11398 */ 11399 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11400 lun->pending_ua[i] |= 11401 CTL_UA_ASYM_ACC_CHANGE; 11402 } 11403 } else { 11404 panic("Unhandled HA mode failover, LUN flags = %#x, " 11405 "ha_mode = #%x", lun->flags, ctl_softc->ha_mode); 11406 } 11407 } 11408 ctl_pause_rtr = 0; 11409 mtx_unlock(&ctl_softc->ctl_lock); 11410} 11411 11412static int 11413ctl_scsiio_precheck(struct ctl_softc *ctl_softc, struct ctl_scsiio *ctsio) 11414{ 11415 struct ctl_lun *lun; 11416 const struct ctl_cmd_entry *entry; 11417 uint32_t initidx, targ_lun; 11418 int retval; 11419 11420 retval = 0; 11421 11422 lun = NULL; 11423 11424 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11425 if ((targ_lun < CTL_MAX_LUNS) 11426 && ((lun = ctl_softc->ctl_luns[targ_lun]) != NULL)) { 11427 /* 11428 * If the LUN is invalid, pretend that it doesn't exist. 11429 * It will go away as soon as all pending I/O has been 11430 * completed. 11431 */ 11432 mtx_lock(&lun->lun_lock); 11433 if (lun->flags & CTL_LUN_DISABLED) { 11434 mtx_unlock(&lun->lun_lock); 11435 lun = NULL; 11436 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11437 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11438 } else { 11439 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11440 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11441 lun->be_lun; 11442 if (lun->be_lun->lun_type == T_PROCESSOR) { 11443 ctsio->io_hdr.flags |= CTL_FLAG_CONTROL_DEV; 11444 } 11445 11446 /* 11447 * Every I/O goes into the OOA queue for a 11448 * particular LUN, and stays there until completion. 11449 */ 11450 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11451 ooa_links); 11452 } 11453 } else { 11454 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11455 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11456 } 11457 11458 /* Get command entry and return error if it is unsuppotyed. */ 11459 entry = ctl_validate_command(ctsio); 11460 if (entry == NULL) { 11461 if (lun) 11462 mtx_unlock(&lun->lun_lock); 11463 return (retval); 11464 } 11465 11466 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11467 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11468 11469 /* 11470 * Check to see whether we can send this command to LUNs that don't 11471 * exist. This should pretty much only be the case for inquiry 11472 * and request sense. Further checks, below, really require having 11473 * a LUN, so we can't really check the command anymore. Just put 11474 * it on the rtr queue. 11475 */ 11476 if (lun == NULL) { 11477 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) { 11478 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11479 ctl_enqueue_rtr((union ctl_io *)ctsio); 11480 return (retval); 11481 } 11482 11483 ctl_set_unsupported_lun(ctsio); 11484 ctl_done((union ctl_io *)ctsio); 11485 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11486 return (retval); 11487 } else { 11488 /* 11489 * Make sure we support this particular command on this LUN. 11490 * e.g., we don't support writes to the control LUN. 11491 */ 11492 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11493 mtx_unlock(&lun->lun_lock); 11494 ctl_set_invalid_opcode(ctsio); 11495 ctl_done((union ctl_io *)ctsio); 11496 return (retval); 11497 } 11498 } 11499 11500 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11501 11502#ifdef CTL_WITH_CA 11503 /* 11504 * If we've got a request sense, it'll clear the contingent 11505 * allegiance condition. Otherwise, if we have a CA condition for 11506 * this initiator, clear it, because it sent down a command other 11507 * than request sense. 11508 */ 11509 if ((ctsio->cdb[0] != REQUEST_SENSE) 11510 && (ctl_is_set(lun->have_ca, initidx))) 11511 ctl_clear_mask(lun->have_ca, initidx); 11512#endif 11513 11514 /* 11515 * If the command has this flag set, it handles its own unit 11516 * attention reporting, we shouldn't do anything. Otherwise we 11517 * check for any pending unit attentions, and send them back to the 11518 * initiator. We only do this when a command initially comes in, 11519 * not when we pull it off the blocked queue. 11520 * 11521 * According to SAM-3, section 5.3.2, the order that things get 11522 * presented back to the host is basically unit attentions caused 11523 * by some sort of reset event, busy status, reservation conflicts 11524 * or task set full, and finally any other status. 11525 * 11526 * One issue here is that some of the unit attentions we report 11527 * don't fall into the "reset" category (e.g. "reported luns data 11528 * has changed"). So reporting it here, before the reservation 11529 * check, may be technically wrong. I guess the only thing to do 11530 * would be to check for and report the reset events here, and then 11531 * check for the other unit attention types after we check for a 11532 * reservation conflict. 11533 * 11534 * XXX KDM need to fix this 11535 */ 11536 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11537 ctl_ua_type ua_type; 11538 11539 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 11540 scsi_sense_data_type sense_format; 11541 11542 if (lun != NULL) 11543 sense_format = (lun->flags & 11544 CTL_LUN_SENSE_DESC) ? SSD_TYPE_DESC : 11545 SSD_TYPE_FIXED; 11546 else 11547 sense_format = SSD_TYPE_FIXED; 11548 11549 ua_type = ctl_build_ua(&lun->pending_ua[initidx], 11550 &ctsio->sense_data, sense_format); 11551 if (ua_type != CTL_UA_NONE) { 11552 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11553 ctsio->io_hdr.status = CTL_SCSI_ERROR | 11554 CTL_AUTOSENSE; 11555 ctsio->sense_len = SSD_FULL_SIZE; 11556 mtx_unlock(&lun->lun_lock); 11557 ctl_done((union ctl_io *)ctsio); 11558 return (retval); 11559 } 11560 } 11561 } 11562 11563 11564 if (ctl_scsiio_lun_check(ctl_softc, lun, entry, ctsio) != 0) { 11565 mtx_unlock(&lun->lun_lock); 11566 ctl_done((union ctl_io *)ctsio); 11567 return (retval); 11568 } 11569 11570 /* 11571 * XXX CHD this is where we want to send IO to other side if 11572 * this LUN is secondary on this SC. We will need to make a copy 11573 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11574 * the copy we send as FROM_OTHER. 11575 * We also need to stuff the address of the original IO so we can 11576 * find it easily. Something similar will need be done on the other 11577 * side so when we are done we can find the copy. 11578 */ 11579 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11580 union ctl_ha_msg msg_info; 11581 int isc_retval; 11582 11583 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11584 11585 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11586 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11587#if 0 11588 printf("1. ctsio %p\n", ctsio); 11589#endif 11590 msg_info.hdr.serializing_sc = NULL; 11591 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11592 msg_info.scsi.tag_num = ctsio->tag_num; 11593 msg_info.scsi.tag_type = ctsio->tag_type; 11594 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11595 11596 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11597 11598 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11599 (void *)&msg_info, sizeof(msg_info), 0)) > 11600 CTL_HA_STATUS_SUCCESS) { 11601 printf("CTL:precheck, ctl_ha_msg_send returned %d\n", 11602 isc_retval); 11603 printf("CTL:opcode is %x\n", ctsio->cdb[0]); 11604 } else { 11605#if 0 11606 printf("CTL:Precheck sent msg, opcode is %x\n",opcode); 11607#endif 11608 } 11609 11610 /* 11611 * XXX KDM this I/O is off the incoming queue, but hasn't 11612 * been inserted on any other queue. We may need to come 11613 * up with a holding queue while we wait for serialization 11614 * so that we have an idea of what we're waiting for from 11615 * the other side. 11616 */ 11617 mtx_unlock(&lun->lun_lock); 11618 return (retval); 11619 } 11620 11621 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11622 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11623 ctl_ooaq, ooa_links))) { 11624 case CTL_ACTION_BLOCK: 11625 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11626 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11627 blocked_links); 11628 mtx_unlock(&lun->lun_lock); 11629 return (retval); 11630 case CTL_ACTION_PASS: 11631 case CTL_ACTION_SKIP: 11632 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11633 mtx_unlock(&lun->lun_lock); 11634 ctl_enqueue_rtr((union ctl_io *)ctsio); 11635 break; 11636 case CTL_ACTION_OVERLAP: 11637 mtx_unlock(&lun->lun_lock); 11638 ctl_set_overlapped_cmd(ctsio); 11639 ctl_done((union ctl_io *)ctsio); 11640 break; 11641 case CTL_ACTION_OVERLAP_TAG: 11642 mtx_unlock(&lun->lun_lock); 11643 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11644 ctl_done((union ctl_io *)ctsio); 11645 break; 11646 case CTL_ACTION_ERROR: 11647 default: 11648 mtx_unlock(&lun->lun_lock); 11649 ctl_set_internal_failure(ctsio, 11650 /*sks_valid*/ 0, 11651 /*retry_count*/ 0); 11652 ctl_done((union ctl_io *)ctsio); 11653 break; 11654 } 11655 return (retval); 11656} 11657 11658const struct ctl_cmd_entry * 11659ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11660{ 11661 const struct ctl_cmd_entry *entry; 11662 int service_action; 11663 11664 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11665 if (sa) 11666 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11667 if (entry->flags & CTL_CMD_FLAG_SA5) { 11668 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11669 entry = &((const struct ctl_cmd_entry *) 11670 entry->execute)[service_action]; 11671 } 11672 return (entry); 11673} 11674 11675const struct ctl_cmd_entry * 11676ctl_validate_command(struct ctl_scsiio *ctsio) 11677{ 11678 const struct ctl_cmd_entry *entry; 11679 int i, sa; 11680 uint8_t diff; 11681 11682 entry = ctl_get_cmd_entry(ctsio, &sa); 11683 if (entry->execute == NULL) { 11684 if (sa) 11685 ctl_set_invalid_field(ctsio, 11686 /*sks_valid*/ 1, 11687 /*command*/ 1, 11688 /*field*/ 1, 11689 /*bit_valid*/ 1, 11690 /*bit*/ 4); 11691 else 11692 ctl_set_invalid_opcode(ctsio); 11693 ctl_done((union ctl_io *)ctsio); 11694 return (NULL); 11695 } 11696 KASSERT(entry->length > 0, 11697 ("Not defined length for command 0x%02x/0x%02x", 11698 ctsio->cdb[0], ctsio->cdb[1])); 11699 for (i = 1; i < entry->length; i++) { 11700 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11701 if (diff == 0) 11702 continue; 11703 ctl_set_invalid_field(ctsio, 11704 /*sks_valid*/ 1, 11705 /*command*/ 1, 11706 /*field*/ i, 11707 /*bit_valid*/ 1, 11708 /*bit*/ fls(diff) - 1); 11709 ctl_done((union ctl_io *)ctsio); 11710 return (NULL); 11711 } 11712 return (entry); 11713} 11714 11715static int 11716ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11717{ 11718 11719 switch (lun_type) { 11720 case T_PROCESSOR: 11721 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) && 11722 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11723 return (0); 11724 break; 11725 case T_DIRECT: 11726 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) && 11727 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11728 return (0); 11729 break; 11730 default: 11731 return (0); 11732 } 11733 return (1); 11734} 11735 11736static int 11737ctl_scsiio(struct ctl_scsiio *ctsio) 11738{ 11739 int retval; 11740 const struct ctl_cmd_entry *entry; 11741 11742 retval = CTL_RETVAL_COMPLETE; 11743 11744 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11745 11746 entry = ctl_get_cmd_entry(ctsio, NULL); 11747 11748 /* 11749 * If this I/O has been aborted, just send it straight to 11750 * ctl_done() without executing it. 11751 */ 11752 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11753 ctl_done((union ctl_io *)ctsio); 11754 goto bailout; 11755 } 11756 11757 /* 11758 * All the checks should have been handled by ctl_scsiio_precheck(). 11759 * We should be clear now to just execute the I/O. 11760 */ 11761 retval = entry->execute(ctsio); 11762 11763bailout: 11764 return (retval); 11765} 11766 11767/* 11768 * Since we only implement one target right now, a bus reset simply resets 11769 * our single target. 11770 */ 11771static int 11772ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io) 11773{ 11774 return(ctl_target_reset(ctl_softc, io, CTL_UA_BUS_RESET)); 11775} 11776 11777static int 11778ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 11779 ctl_ua_type ua_type) 11780{ 11781 struct ctl_lun *lun; 11782 int retval; 11783 11784 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11785 union ctl_ha_msg msg_info; 11786 11787 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11788 msg_info.hdr.nexus = io->io_hdr.nexus; 11789 if (ua_type==CTL_UA_TARG_RESET) 11790 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11791 else 11792 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11793 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11794 msg_info.hdr.original_sc = NULL; 11795 msg_info.hdr.serializing_sc = NULL; 11796 if (CTL_HA_STATUS_SUCCESS != ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11797 (void *)&msg_info, sizeof(msg_info), 0)) { 11798 } 11799 } 11800 retval = 0; 11801 11802 mtx_lock(&ctl_softc->ctl_lock); 11803 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) 11804 retval += ctl_lun_reset(lun, io, ua_type); 11805 mtx_unlock(&ctl_softc->ctl_lock); 11806 11807 return (retval); 11808} 11809 11810/* 11811 * The LUN should always be set. The I/O is optional, and is used to 11812 * distinguish between I/Os sent by this initiator, and by other 11813 * initiators. We set unit attention for initiators other than this one. 11814 * SAM-3 is vague on this point. It does say that a unit attention should 11815 * be established for other initiators when a LUN is reset (see section 11816 * 5.7.3), but it doesn't specifically say that the unit attention should 11817 * be established for this particular initiator when a LUN is reset. Here 11818 * is the relevant text, from SAM-3 rev 8: 11819 * 11820 * 5.7.2 When a SCSI initiator port aborts its own tasks 11821 * 11822 * When a SCSI initiator port causes its own task(s) to be aborted, no 11823 * notification that the task(s) have been aborted shall be returned to 11824 * the SCSI initiator port other than the completion response for the 11825 * command or task management function action that caused the task(s) to 11826 * be aborted and notification(s) associated with related effects of the 11827 * action (e.g., a reset unit attention condition). 11828 * 11829 * XXX KDM for now, we're setting unit attention for all initiators. 11830 */ 11831static int 11832ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11833{ 11834 union ctl_io *xio; 11835#if 0 11836 uint32_t initidx; 11837#endif 11838 int i; 11839 11840 mtx_lock(&lun->lun_lock); 11841 /* 11842 * Run through the OOA queue and abort each I/O. 11843 */ 11844#if 0 11845 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 11846#endif 11847 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11848 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11849 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11850 } 11851 11852 /* 11853 * This version sets unit attention for every 11854 */ 11855#if 0 11856 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11857 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11858 if (initidx == i) 11859 continue; 11860 lun->pending_ua[i] |= ua_type; 11861 } 11862#endif 11863 11864 /* 11865 * A reset (any kind, really) clears reservations established with 11866 * RESERVE/RELEASE. It does not clear reservations established 11867 * with PERSISTENT RESERVE OUT, but we don't support that at the 11868 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11869 * reservations made with the RESERVE/RELEASE commands, because 11870 * those commands are obsolete in SPC-3. 11871 */ 11872 lun->flags &= ~CTL_LUN_RESERVED; 11873 11874 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11875#ifdef CTL_WITH_CA 11876 ctl_clear_mask(lun->have_ca, i); 11877#endif 11878 lun->pending_ua[i] |= ua_type; 11879 } 11880 mtx_unlock(&lun->lun_lock); 11881 11882 return (0); 11883} 11884 11885static void 11886ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11887 int other_sc) 11888{ 11889 union ctl_io *xio; 11890 11891 mtx_assert(&lun->lun_lock, MA_OWNED); 11892 11893 /* 11894 * Run through the OOA queue and attempt to find the given I/O. 11895 * The target port, initiator ID, tag type and tag number have to 11896 * match the values that we got from the initiator. If we have an 11897 * untagged command to abort, simply abort the first untagged command 11898 * we come to. We only allow one untagged command at a time of course. 11899 */ 11900 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11901 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11902 11903 if ((targ_port == UINT32_MAX || 11904 targ_port == xio->io_hdr.nexus.targ_port) && 11905 (init_id == UINT32_MAX || 11906 init_id == xio->io_hdr.nexus.initid.id)) { 11907 if (targ_port != xio->io_hdr.nexus.targ_port || 11908 init_id != xio->io_hdr.nexus.initid.id) 11909 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 11910 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11911 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11912 union ctl_ha_msg msg_info; 11913 11914 msg_info.hdr.nexus = xio->io_hdr.nexus; 11915 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 11916 msg_info.task.tag_num = xio->scsiio.tag_num; 11917 msg_info.task.tag_type = xio->scsiio.tag_type; 11918 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11919 msg_info.hdr.original_sc = NULL; 11920 msg_info.hdr.serializing_sc = NULL; 11921 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11922 (void *)&msg_info, sizeof(msg_info), 0); 11923 } 11924 } 11925 } 11926} 11927 11928static int 11929ctl_abort_task_set(union ctl_io *io) 11930{ 11931 struct ctl_softc *softc = control_softc; 11932 struct ctl_lun *lun; 11933 uint32_t targ_lun; 11934 11935 /* 11936 * Look up the LUN. 11937 */ 11938 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11939 mtx_lock(&softc->ctl_lock); 11940 if ((targ_lun < CTL_MAX_LUNS) && (softc->ctl_luns[targ_lun] != NULL)) 11941 lun = softc->ctl_luns[targ_lun]; 11942 else { 11943 mtx_unlock(&softc->ctl_lock); 11944 return (1); 11945 } 11946 11947 mtx_lock(&lun->lun_lock); 11948 mtx_unlock(&softc->ctl_lock); 11949 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 11950 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11951 io->io_hdr.nexus.initid.id, 11952 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11953 } else { /* CTL_TASK_CLEAR_TASK_SET */ 11954 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 11955 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11956 } 11957 mtx_unlock(&lun->lun_lock); 11958 return (0); 11959} 11960 11961static int 11962ctl_i_t_nexus_reset(union ctl_io *io) 11963{ 11964 struct ctl_softc *softc = control_softc; 11965 struct ctl_lun *lun; 11966 uint32_t initidx, residx; 11967 11968 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11969 residx = ctl_get_resindex(&io->io_hdr.nexus); 11970 mtx_lock(&softc->ctl_lock); 11971 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11972 mtx_lock(&lun->lun_lock); 11973 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11974 io->io_hdr.nexus.initid.id, 11975 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11976#ifdef CTL_WITH_CA 11977 ctl_clear_mask(lun->have_ca, initidx); 11978#endif 11979 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 11980 lun->flags &= ~CTL_LUN_RESERVED; 11981 lun->pending_ua[initidx] |= CTL_UA_I_T_NEXUS_LOSS; 11982 mtx_unlock(&lun->lun_lock); 11983 } 11984 mtx_unlock(&softc->ctl_lock); 11985 return (0); 11986} 11987 11988static int 11989ctl_abort_task(union ctl_io *io) 11990{ 11991 union ctl_io *xio; 11992 struct ctl_lun *lun; 11993 struct ctl_softc *ctl_softc; 11994#if 0 11995 struct sbuf sb; 11996 char printbuf[128]; 11997#endif 11998 int found; 11999 uint32_t targ_lun; 12000 12001 ctl_softc = control_softc; 12002 found = 0; 12003 12004 /* 12005 * Look up the LUN. 12006 */ 12007 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12008 mtx_lock(&ctl_softc->ctl_lock); 12009 if ((targ_lun < CTL_MAX_LUNS) 12010 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12011 lun = ctl_softc->ctl_luns[targ_lun]; 12012 else { 12013 mtx_unlock(&ctl_softc->ctl_lock); 12014 return (1); 12015 } 12016 12017#if 0 12018 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12019 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12020#endif 12021 12022 mtx_lock(&lun->lun_lock); 12023 mtx_unlock(&ctl_softc->ctl_lock); 12024 /* 12025 * Run through the OOA queue and attempt to find the given I/O. 12026 * The target port, initiator ID, tag type and tag number have to 12027 * match the values that we got from the initiator. If we have an 12028 * untagged command to abort, simply abort the first untagged command 12029 * we come to. We only allow one untagged command at a time of course. 12030 */ 12031#if 0 12032 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12033#endif 12034 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12035 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12036#if 0 12037 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12038 12039 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12040 lun->lun, xio->scsiio.tag_num, 12041 xio->scsiio.tag_type, 12042 (xio->io_hdr.blocked_links.tqe_prev 12043 == NULL) ? "" : " BLOCKED", 12044 (xio->io_hdr.flags & 12045 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12046 (xio->io_hdr.flags & 12047 CTL_FLAG_ABORT) ? " ABORT" : "", 12048 (xio->io_hdr.flags & 12049 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12050 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12051 sbuf_finish(&sb); 12052 printf("%s\n", sbuf_data(&sb)); 12053#endif 12054 12055 if ((xio->io_hdr.nexus.targ_port == io->io_hdr.nexus.targ_port) 12056 && (xio->io_hdr.nexus.initid.id == 12057 io->io_hdr.nexus.initid.id)) { 12058 /* 12059 * If the abort says that the task is untagged, the 12060 * task in the queue must be untagged. Otherwise, 12061 * we just check to see whether the tag numbers 12062 * match. This is because the QLogic firmware 12063 * doesn't pass back the tag type in an abort 12064 * request. 12065 */ 12066#if 0 12067 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12068 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12069 || (xio->scsiio.tag_num == io->taskio.tag_num)) { 12070#endif 12071 /* 12072 * XXX KDM we've got problems with FC, because it 12073 * doesn't send down a tag type with aborts. So we 12074 * can only really go by the tag number... 12075 * This may cause problems with parallel SCSI. 12076 * Need to figure that out!! 12077 */ 12078 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12079 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12080 found = 1; 12081 if ((io->io_hdr.flags & 12082 CTL_FLAG_FROM_OTHER_SC) == 0 && 12083 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12084 union ctl_ha_msg msg_info; 12085 12086 io->io_hdr.flags |= 12087 CTL_FLAG_SENT_2OTHER_SC; 12088 msg_info.hdr.nexus = io->io_hdr.nexus; 12089 msg_info.task.task_action = 12090 CTL_TASK_ABORT_TASK; 12091 msg_info.task.tag_num = 12092 io->taskio.tag_num; 12093 msg_info.task.tag_type = 12094 io->taskio.tag_type; 12095 msg_info.hdr.msg_type = 12096 CTL_MSG_MANAGE_TASKS; 12097 msg_info.hdr.original_sc = NULL; 12098 msg_info.hdr.serializing_sc = NULL; 12099#if 0 12100 printf("Sent Abort to other side\n"); 12101#endif 12102 if (CTL_HA_STATUS_SUCCESS != 12103 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12104 (void *)&msg_info, 12105 sizeof(msg_info), 0)) { 12106 } 12107 } 12108#if 0 12109 printf("ctl_abort_task: found I/O to abort\n"); 12110#endif 12111 break; 12112 } 12113 } 12114 } 12115 mtx_unlock(&lun->lun_lock); 12116 12117 if (found == 0) { 12118 /* 12119 * This isn't really an error. It's entirely possible for 12120 * the abort and command completion to cross on the wire. 12121 * This is more of an informative/diagnostic error. 12122 */ 12123#if 0 12124 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12125 "%d:%d:%d:%d tag %d type %d\n", 12126 io->io_hdr.nexus.initid.id, 12127 io->io_hdr.nexus.targ_port, 12128 io->io_hdr.nexus.targ_target.id, 12129 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12130 io->taskio.tag_type); 12131#endif 12132 } 12133 return (0); 12134} 12135 12136static void 12137ctl_run_task(union ctl_io *io) 12138{ 12139 struct ctl_softc *ctl_softc = control_softc; 12140 int retval = 1; 12141 const char *task_desc; 12142 12143 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12144 12145 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12146 ("ctl_run_task: Unextected io_type %d\n", 12147 io->io_hdr.io_type)); 12148 12149 task_desc = ctl_scsi_task_string(&io->taskio); 12150 if (task_desc != NULL) { 12151#ifdef NEEDTOPORT 12152 csevent_log(CSC_CTL | CSC_SHELF_SW | 12153 CTL_TASK_REPORT, 12154 csevent_LogType_Trace, 12155 csevent_Severity_Information, 12156 csevent_AlertLevel_Green, 12157 csevent_FRU_Firmware, 12158 csevent_FRU_Unknown, 12159 "CTL: received task: %s",task_desc); 12160#endif 12161 } else { 12162#ifdef NEEDTOPORT 12163 csevent_log(CSC_CTL | CSC_SHELF_SW | 12164 CTL_TASK_REPORT, 12165 csevent_LogType_Trace, 12166 csevent_Severity_Information, 12167 csevent_AlertLevel_Green, 12168 csevent_FRU_Firmware, 12169 csevent_FRU_Unknown, 12170 "CTL: received unknown task " 12171 "type: %d (%#x)", 12172 io->taskio.task_action, 12173 io->taskio.task_action); 12174#endif 12175 } 12176 switch (io->taskio.task_action) { 12177 case CTL_TASK_ABORT_TASK: 12178 retval = ctl_abort_task(io); 12179 break; 12180 case CTL_TASK_ABORT_TASK_SET: 12181 case CTL_TASK_CLEAR_TASK_SET: 12182 retval = ctl_abort_task_set(io); 12183 break; 12184 case CTL_TASK_CLEAR_ACA: 12185 break; 12186 case CTL_TASK_I_T_NEXUS_RESET: 12187 retval = ctl_i_t_nexus_reset(io); 12188 break; 12189 case CTL_TASK_LUN_RESET: { 12190 struct ctl_lun *lun; 12191 uint32_t targ_lun; 12192 12193 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12194 mtx_lock(&ctl_softc->ctl_lock); 12195 if ((targ_lun < CTL_MAX_LUNS) 12196 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12197 lun = ctl_softc->ctl_luns[targ_lun]; 12198 else { 12199 mtx_unlock(&ctl_softc->ctl_lock); 12200 retval = 1; 12201 break; 12202 } 12203 12204 if (!(io->io_hdr.flags & 12205 CTL_FLAG_FROM_OTHER_SC)) { 12206 union ctl_ha_msg msg_info; 12207 12208 io->io_hdr.flags |= 12209 CTL_FLAG_SENT_2OTHER_SC; 12210 msg_info.hdr.msg_type = 12211 CTL_MSG_MANAGE_TASKS; 12212 msg_info.hdr.nexus = io->io_hdr.nexus; 12213 msg_info.task.task_action = 12214 CTL_TASK_LUN_RESET; 12215 msg_info.hdr.original_sc = NULL; 12216 msg_info.hdr.serializing_sc = NULL; 12217 if (CTL_HA_STATUS_SUCCESS != 12218 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12219 (void *)&msg_info, 12220 sizeof(msg_info), 0)) { 12221 } 12222 } 12223 12224 retval = ctl_lun_reset(lun, io, 12225 CTL_UA_LUN_RESET); 12226 mtx_unlock(&ctl_softc->ctl_lock); 12227 break; 12228 } 12229 case CTL_TASK_TARGET_RESET: 12230 retval = ctl_target_reset(ctl_softc, io, CTL_UA_TARG_RESET); 12231 break; 12232 case CTL_TASK_BUS_RESET: 12233 retval = ctl_bus_reset(ctl_softc, io); 12234 break; 12235 case CTL_TASK_PORT_LOGIN: 12236 break; 12237 case CTL_TASK_PORT_LOGOUT: 12238 break; 12239 default: 12240 printf("ctl_run_task: got unknown task management event %d\n", 12241 io->taskio.task_action); 12242 break; 12243 } 12244 if (retval == 0) 12245 io->io_hdr.status = CTL_SUCCESS; 12246 else 12247 io->io_hdr.status = CTL_ERROR; 12248 ctl_done(io); 12249} 12250 12251/* 12252 * For HA operation. Handle commands that come in from the other 12253 * controller. 12254 */ 12255static void 12256ctl_handle_isc(union ctl_io *io) 12257{ 12258 int free_io; 12259 struct ctl_lun *lun; 12260 struct ctl_softc *ctl_softc; 12261 uint32_t targ_lun; 12262 12263 ctl_softc = control_softc; 12264 12265 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12266 lun = ctl_softc->ctl_luns[targ_lun]; 12267 12268 switch (io->io_hdr.msg_type) { 12269 case CTL_MSG_SERIALIZE: 12270 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12271 break; 12272 case CTL_MSG_R2R: { 12273 const struct ctl_cmd_entry *entry; 12274 12275 /* 12276 * This is only used in SER_ONLY mode. 12277 */ 12278 free_io = 0; 12279 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12280 mtx_lock(&lun->lun_lock); 12281 if (ctl_scsiio_lun_check(ctl_softc, lun, 12282 entry, (struct ctl_scsiio *)io) != 0) { 12283 mtx_unlock(&lun->lun_lock); 12284 ctl_done(io); 12285 break; 12286 } 12287 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12288 mtx_unlock(&lun->lun_lock); 12289 ctl_enqueue_rtr(io); 12290 break; 12291 } 12292 case CTL_MSG_FINISH_IO: 12293 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 12294 free_io = 0; 12295 ctl_done(io); 12296 } else { 12297 free_io = 1; 12298 mtx_lock(&lun->lun_lock); 12299 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12300 ooa_links); 12301 ctl_check_blocked(lun); 12302 mtx_unlock(&lun->lun_lock); 12303 } 12304 break; 12305 case CTL_MSG_PERS_ACTION: 12306 ctl_hndl_per_res_out_on_other_sc( 12307 (union ctl_ha_msg *)&io->presio.pr_msg); 12308 free_io = 1; 12309 break; 12310 case CTL_MSG_BAD_JUJU: 12311 free_io = 0; 12312 ctl_done(io); 12313 break; 12314 case CTL_MSG_DATAMOVE: 12315 /* Only used in XFER mode */ 12316 free_io = 0; 12317 ctl_datamove_remote(io); 12318 break; 12319 case CTL_MSG_DATAMOVE_DONE: 12320 /* Only used in XFER mode */ 12321 free_io = 0; 12322 io->scsiio.be_move_done(io); 12323 break; 12324 default: 12325 free_io = 1; 12326 printf("%s: Invalid message type %d\n", 12327 __func__, io->io_hdr.msg_type); 12328 break; 12329 } 12330 if (free_io) 12331 ctl_free_io(io); 12332 12333} 12334 12335 12336/* 12337 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12338 * there is no match. 12339 */ 12340static ctl_lun_error_pattern 12341ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12342{ 12343 const struct ctl_cmd_entry *entry; 12344 ctl_lun_error_pattern filtered_pattern, pattern; 12345 12346 pattern = desc->error_pattern; 12347 12348 /* 12349 * XXX KDM we need more data passed into this function to match a 12350 * custom pattern, and we actually need to implement custom pattern 12351 * matching. 12352 */ 12353 if (pattern & CTL_LUN_PAT_CMD) 12354 return (CTL_LUN_PAT_CMD); 12355 12356 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12357 return (CTL_LUN_PAT_ANY); 12358 12359 entry = ctl_get_cmd_entry(ctsio, NULL); 12360 12361 filtered_pattern = entry->pattern & pattern; 12362 12363 /* 12364 * If the user requested specific flags in the pattern (e.g. 12365 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12366 * flags. 12367 * 12368 * If the user did not specify any flags, it doesn't matter whether 12369 * or not the command supports the flags. 12370 */ 12371 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12372 (pattern & ~CTL_LUN_PAT_MASK)) 12373 return (CTL_LUN_PAT_NONE); 12374 12375 /* 12376 * If the user asked for a range check, see if the requested LBA 12377 * range overlaps with this command's LBA range. 12378 */ 12379 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12380 uint64_t lba1; 12381 uint64_t len1; 12382 ctl_action action; 12383 int retval; 12384 12385 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12386 if (retval != 0) 12387 return (CTL_LUN_PAT_NONE); 12388 12389 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12390 desc->lba_range.len); 12391 /* 12392 * A "pass" means that the LBA ranges don't overlap, so 12393 * this doesn't match the user's range criteria. 12394 */ 12395 if (action == CTL_ACTION_PASS) 12396 return (CTL_LUN_PAT_NONE); 12397 } 12398 12399 return (filtered_pattern); 12400} 12401 12402static void 12403ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12404{ 12405 struct ctl_error_desc *desc, *desc2; 12406 12407 mtx_assert(&lun->lun_lock, MA_OWNED); 12408 12409 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12410 ctl_lun_error_pattern pattern; 12411 /* 12412 * Check to see whether this particular command matches 12413 * the pattern in the descriptor. 12414 */ 12415 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12416 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12417 continue; 12418 12419 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12420 case CTL_LUN_INJ_ABORTED: 12421 ctl_set_aborted(&io->scsiio); 12422 break; 12423 case CTL_LUN_INJ_MEDIUM_ERR: 12424 ctl_set_medium_error(&io->scsiio); 12425 break; 12426 case CTL_LUN_INJ_UA: 12427 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12428 * OCCURRED */ 12429 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12430 break; 12431 case CTL_LUN_INJ_CUSTOM: 12432 /* 12433 * We're assuming the user knows what he is doing. 12434 * Just copy the sense information without doing 12435 * checks. 12436 */ 12437 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12438 ctl_min(sizeof(desc->custom_sense), 12439 sizeof(io->scsiio.sense_data))); 12440 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12441 io->scsiio.sense_len = SSD_FULL_SIZE; 12442 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12443 break; 12444 case CTL_LUN_INJ_NONE: 12445 default: 12446 /* 12447 * If this is an error injection type we don't know 12448 * about, clear the continuous flag (if it is set) 12449 * so it will get deleted below. 12450 */ 12451 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12452 break; 12453 } 12454 /* 12455 * By default, each error injection action is a one-shot 12456 */ 12457 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12458 continue; 12459 12460 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12461 12462 free(desc, M_CTL); 12463 } 12464} 12465 12466#ifdef CTL_IO_DELAY 12467static void 12468ctl_datamove_timer_wakeup(void *arg) 12469{ 12470 union ctl_io *io; 12471 12472 io = (union ctl_io *)arg; 12473 12474 ctl_datamove(io); 12475} 12476#endif /* CTL_IO_DELAY */ 12477 12478void 12479ctl_datamove(union ctl_io *io) 12480{ 12481 void (*fe_datamove)(union ctl_io *io); 12482 12483 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12484 12485 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12486 12487#ifdef CTL_TIME_IO 12488 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12489 char str[256]; 12490 char path_str[64]; 12491 struct sbuf sb; 12492 12493 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12494 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12495 12496 sbuf_cat(&sb, path_str); 12497 switch (io->io_hdr.io_type) { 12498 case CTL_IO_SCSI: 12499 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12500 sbuf_printf(&sb, "\n"); 12501 sbuf_cat(&sb, path_str); 12502 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12503 io->scsiio.tag_num, io->scsiio.tag_type); 12504 break; 12505 case CTL_IO_TASK: 12506 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12507 "Tag Type: %d\n", io->taskio.task_action, 12508 io->taskio.tag_num, io->taskio.tag_type); 12509 break; 12510 default: 12511 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12512 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12513 break; 12514 } 12515 sbuf_cat(&sb, path_str); 12516 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12517 (intmax_t)time_uptime - io->io_hdr.start_time); 12518 sbuf_finish(&sb); 12519 printf("%s", sbuf_data(&sb)); 12520 } 12521#endif /* CTL_TIME_IO */ 12522 12523#ifdef CTL_IO_DELAY 12524 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12525 struct ctl_lun *lun; 12526 12527 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12528 12529 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12530 } else { 12531 struct ctl_lun *lun; 12532 12533 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12534 if ((lun != NULL) 12535 && (lun->delay_info.datamove_delay > 0)) { 12536 struct callout *callout; 12537 12538 callout = (struct callout *)&io->io_hdr.timer_bytes; 12539 callout_init(callout, /*mpsafe*/ 1); 12540 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12541 callout_reset(callout, 12542 lun->delay_info.datamove_delay * hz, 12543 ctl_datamove_timer_wakeup, io); 12544 if (lun->delay_info.datamove_type == 12545 CTL_DELAY_TYPE_ONESHOT) 12546 lun->delay_info.datamove_delay = 0; 12547 return; 12548 } 12549 } 12550#endif 12551 12552 /* 12553 * This command has been aborted. Set the port status, so we fail 12554 * the data move. 12555 */ 12556 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12557 printf("ctl_datamove: tag 0x%04x on (%ju:%d:%ju:%d) aborted\n", 12558 io->scsiio.tag_num,(uintmax_t)io->io_hdr.nexus.initid.id, 12559 io->io_hdr.nexus.targ_port, 12560 (uintmax_t)io->io_hdr.nexus.targ_target.id, 12561 io->io_hdr.nexus.targ_lun); 12562 io->io_hdr.port_status = 31337; 12563 /* 12564 * Note that the backend, in this case, will get the 12565 * callback in its context. In other cases it may get 12566 * called in the frontend's interrupt thread context. 12567 */ 12568 io->scsiio.be_move_done(io); 12569 return; 12570 } 12571 12572 /* Don't confuse frontend with zero length data move. */ 12573 if (io->scsiio.kern_data_len == 0) { 12574 io->scsiio.be_move_done(io); 12575 return; 12576 } 12577 12578 /* 12579 * If we're in XFER mode and this I/O is from the other shelf 12580 * controller, we need to send the DMA to the other side to 12581 * actually transfer the data to/from the host. In serialize only 12582 * mode the transfer happens below CTL and ctl_datamove() is only 12583 * called on the machine that originally received the I/O. 12584 */ 12585 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12586 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12587 union ctl_ha_msg msg; 12588 uint32_t sg_entries_sent; 12589 int do_sg_copy; 12590 int i; 12591 12592 memset(&msg, 0, sizeof(msg)); 12593 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12594 msg.hdr.original_sc = io->io_hdr.original_sc; 12595 msg.hdr.serializing_sc = io; 12596 msg.hdr.nexus = io->io_hdr.nexus; 12597 msg.dt.flags = io->io_hdr.flags; 12598 /* 12599 * We convert everything into a S/G list here. We can't 12600 * pass by reference, only by value between controllers. 12601 * So we can't pass a pointer to the S/G list, only as many 12602 * S/G entries as we can fit in here. If it's possible for 12603 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12604 * then we need to break this up into multiple transfers. 12605 */ 12606 if (io->scsiio.kern_sg_entries == 0) { 12607 msg.dt.kern_sg_entries = 1; 12608 /* 12609 * If this is in cached memory, flush the cache 12610 * before we send the DMA request to the other 12611 * controller. We want to do this in either the 12612 * read or the write case. The read case is 12613 * straightforward. In the write case, we want to 12614 * make sure nothing is in the local cache that 12615 * could overwrite the DMAed data. 12616 */ 12617 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12618 /* 12619 * XXX KDM use bus_dmamap_sync() here. 12620 */ 12621 } 12622 12623 /* 12624 * Convert to a physical address if this is a 12625 * virtual address. 12626 */ 12627 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12628 msg.dt.sg_list[0].addr = 12629 io->scsiio.kern_data_ptr; 12630 } else { 12631 /* 12632 * XXX KDM use busdma here! 12633 */ 12634#if 0 12635 msg.dt.sg_list[0].addr = (void *) 12636 vtophys(io->scsiio.kern_data_ptr); 12637#endif 12638 } 12639 12640 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12641 do_sg_copy = 0; 12642 } else { 12643 struct ctl_sg_entry *sgl; 12644 12645 do_sg_copy = 1; 12646 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12647 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 12648 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12649 /* 12650 * XXX KDM use bus_dmamap_sync() here. 12651 */ 12652 } 12653 } 12654 12655 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12656 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12657 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12658 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12659 msg.dt.sg_sequence = 0; 12660 12661 /* 12662 * Loop until we've sent all of the S/G entries. On the 12663 * other end, we'll recompose these S/G entries into one 12664 * contiguous list before passing it to the 12665 */ 12666 for (sg_entries_sent = 0; sg_entries_sent < 12667 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12668 msg.dt.cur_sg_entries = ctl_min((sizeof(msg.dt.sg_list)/ 12669 sizeof(msg.dt.sg_list[0])), 12670 msg.dt.kern_sg_entries - sg_entries_sent); 12671 12672 if (do_sg_copy != 0) { 12673 struct ctl_sg_entry *sgl; 12674 int j; 12675 12676 sgl = (struct ctl_sg_entry *) 12677 io->scsiio.kern_data_ptr; 12678 /* 12679 * If this is in cached memory, flush the cache 12680 * before we send the DMA request to the other 12681 * controller. We want to do this in either 12682 * the * read or the write case. The read 12683 * case is straightforward. In the write 12684 * case, we want to make sure nothing is 12685 * in the local cache that could overwrite 12686 * the DMAed data. 12687 */ 12688 12689 for (i = sg_entries_sent, j = 0; 12690 i < msg.dt.cur_sg_entries; i++, j++) { 12691 if ((io->io_hdr.flags & 12692 CTL_FLAG_NO_DATASYNC) == 0) { 12693 /* 12694 * XXX KDM use bus_dmamap_sync() 12695 */ 12696 } 12697 if ((io->io_hdr.flags & 12698 CTL_FLAG_BUS_ADDR) == 0) { 12699 /* 12700 * XXX KDM use busdma. 12701 */ 12702#if 0 12703 msg.dt.sg_list[j].addr =(void *) 12704 vtophys(sgl[i].addr); 12705#endif 12706 } else { 12707 msg.dt.sg_list[j].addr = 12708 sgl[i].addr; 12709 } 12710 msg.dt.sg_list[j].len = sgl[i].len; 12711 } 12712 } 12713 12714 sg_entries_sent += msg.dt.cur_sg_entries; 12715 if (sg_entries_sent >= msg.dt.kern_sg_entries) 12716 msg.dt.sg_last = 1; 12717 else 12718 msg.dt.sg_last = 0; 12719 12720 /* 12721 * XXX KDM drop and reacquire the lock here? 12722 */ 12723 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12724 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 12725 /* 12726 * XXX do something here. 12727 */ 12728 } 12729 12730 msg.dt.sent_sg_entries = sg_entries_sent; 12731 } 12732 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12733 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) 12734 ctl_failover_io(io, /*have_lock*/ 0); 12735 12736 } else { 12737 12738 /* 12739 * Lookup the fe_datamove() function for this particular 12740 * front end. 12741 */ 12742 fe_datamove = 12743 control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12744 12745 fe_datamove(io); 12746 } 12747} 12748 12749static void 12750ctl_send_datamove_done(union ctl_io *io, int have_lock) 12751{ 12752 union ctl_ha_msg msg; 12753 int isc_status; 12754 12755 memset(&msg, 0, sizeof(msg)); 12756 12757 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12758 msg.hdr.original_sc = io; 12759 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12760 msg.hdr.nexus = io->io_hdr.nexus; 12761 msg.hdr.status = io->io_hdr.status; 12762 msg.scsi.tag_num = io->scsiio.tag_num; 12763 msg.scsi.tag_type = io->scsiio.tag_type; 12764 msg.scsi.scsi_status = io->scsiio.scsi_status; 12765 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12766 sizeof(io->scsiio.sense_data)); 12767 msg.scsi.sense_len = io->scsiio.sense_len; 12768 msg.scsi.sense_residual = io->scsiio.sense_residual; 12769 msg.scsi.fetd_status = io->io_hdr.port_status; 12770 msg.scsi.residual = io->scsiio.residual; 12771 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12772 12773 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12774 ctl_failover_io(io, /*have_lock*/ have_lock); 12775 return; 12776 } 12777 12778 isc_status = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0); 12779 if (isc_status > CTL_HA_STATUS_SUCCESS) { 12780 /* XXX do something if this fails */ 12781 } 12782 12783} 12784 12785/* 12786 * The DMA to the remote side is done, now we need to tell the other side 12787 * we're done so it can continue with its data movement. 12788 */ 12789static void 12790ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12791{ 12792 union ctl_io *io; 12793 12794 io = rq->context; 12795 12796 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12797 printf("%s: ISC DMA write failed with error %d", __func__, 12798 rq->ret); 12799 ctl_set_internal_failure(&io->scsiio, 12800 /*sks_valid*/ 1, 12801 /*retry_count*/ rq->ret); 12802 } 12803 12804 ctl_dt_req_free(rq); 12805 12806 /* 12807 * In this case, we had to malloc the memory locally. Free it. 12808 */ 12809 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12810 int i; 12811 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12812 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12813 } 12814 /* 12815 * The data is in local and remote memory, so now we need to send 12816 * status (good or back) back to the other side. 12817 */ 12818 ctl_send_datamove_done(io, /*have_lock*/ 0); 12819} 12820 12821/* 12822 * We've moved the data from the host/controller into local memory. Now we 12823 * need to push it over to the remote controller's memory. 12824 */ 12825static int 12826ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12827{ 12828 int retval; 12829 12830 retval = 0; 12831 12832 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12833 ctl_datamove_remote_write_cb); 12834 12835 return (retval); 12836} 12837 12838static void 12839ctl_datamove_remote_write(union ctl_io *io) 12840{ 12841 int retval; 12842 void (*fe_datamove)(union ctl_io *io); 12843 12844 /* 12845 * - Get the data from the host/HBA into local memory. 12846 * - DMA memory from the local controller to the remote controller. 12847 * - Send status back to the remote controller. 12848 */ 12849 12850 retval = ctl_datamove_remote_sgl_setup(io); 12851 if (retval != 0) 12852 return; 12853 12854 /* Switch the pointer over so the FETD knows what to do */ 12855 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12856 12857 /* 12858 * Use a custom move done callback, since we need to send completion 12859 * back to the other controller, not to the backend on this side. 12860 */ 12861 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12862 12863 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12864 12865 fe_datamove(io); 12866 12867 return; 12868 12869} 12870 12871static int 12872ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12873{ 12874#if 0 12875 char str[256]; 12876 char path_str[64]; 12877 struct sbuf sb; 12878#endif 12879 12880 /* 12881 * In this case, we had to malloc the memory locally. Free it. 12882 */ 12883 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12884 int i; 12885 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12886 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12887 } 12888 12889#if 0 12890 scsi_path_string(io, path_str, sizeof(path_str)); 12891 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12892 sbuf_cat(&sb, path_str); 12893 scsi_command_string(&io->scsiio, NULL, &sb); 12894 sbuf_printf(&sb, "\n"); 12895 sbuf_cat(&sb, path_str); 12896 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12897 io->scsiio.tag_num, io->scsiio.tag_type); 12898 sbuf_cat(&sb, path_str); 12899 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12900 io->io_hdr.flags, io->io_hdr.status); 12901 sbuf_finish(&sb); 12902 printk("%s", sbuf_data(&sb)); 12903#endif 12904 12905 12906 /* 12907 * The read is done, now we need to send status (good or bad) back 12908 * to the other side. 12909 */ 12910 ctl_send_datamove_done(io, /*have_lock*/ 0); 12911 12912 return (0); 12913} 12914 12915static void 12916ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12917{ 12918 union ctl_io *io; 12919 void (*fe_datamove)(union ctl_io *io); 12920 12921 io = rq->context; 12922 12923 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12924 printf("%s: ISC DMA read failed with error %d", __func__, 12925 rq->ret); 12926 ctl_set_internal_failure(&io->scsiio, 12927 /*sks_valid*/ 1, 12928 /*retry_count*/ rq->ret); 12929 } 12930 12931 ctl_dt_req_free(rq); 12932 12933 /* Switch the pointer over so the FETD knows what to do */ 12934 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12935 12936 /* 12937 * Use a custom move done callback, since we need to send completion 12938 * back to the other controller, not to the backend on this side. 12939 */ 12940 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12941 12942 /* XXX KDM add checks like the ones in ctl_datamove? */ 12943 12944 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12945 12946 fe_datamove(io); 12947} 12948 12949static int 12950ctl_datamove_remote_sgl_setup(union ctl_io *io) 12951{ 12952 struct ctl_sg_entry *local_sglist, *remote_sglist; 12953 struct ctl_sg_entry *local_dma_sglist, *remote_dma_sglist; 12954 struct ctl_softc *softc; 12955 int retval; 12956 int i; 12957 12958 retval = 0; 12959 softc = control_softc; 12960 12961 local_sglist = io->io_hdr.local_sglist; 12962 local_dma_sglist = io->io_hdr.local_dma_sglist; 12963 remote_sglist = io->io_hdr.remote_sglist; 12964 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 12965 12966 if (io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) { 12967 for (i = 0; i < io->scsiio.kern_sg_entries; i++) { 12968 local_sglist[i].len = remote_sglist[i].len; 12969 12970 /* 12971 * XXX Detect the situation where the RS-level I/O 12972 * redirector on the other side has already read the 12973 * data off of the AOR RS on this side, and 12974 * transferred it to remote (mirror) memory on the 12975 * other side. Since we already have the data in 12976 * memory here, we just need to use it. 12977 * 12978 * XXX KDM this can probably be removed once we 12979 * get the cache device code in and take the 12980 * current AOR implementation out. 12981 */ 12982#ifdef NEEDTOPORT 12983 if ((remote_sglist[i].addr >= 12984 (void *)vtophys(softc->mirr->addr)) 12985 && (remote_sglist[i].addr < 12986 ((void *)vtophys(softc->mirr->addr) + 12987 CacheMirrorOffset))) { 12988 local_sglist[i].addr = remote_sglist[i].addr - 12989 CacheMirrorOffset; 12990 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 12991 CTL_FLAG_DATA_IN) 12992 io->io_hdr.flags |= CTL_FLAG_REDIR_DONE; 12993 } else { 12994 local_sglist[i].addr = remote_sglist[i].addr + 12995 CacheMirrorOffset; 12996 } 12997#endif 12998#if 0 12999 printf("%s: local %p, remote %p, len %d\n", 13000 __func__, local_sglist[i].addr, 13001 remote_sglist[i].addr, local_sglist[i].len); 13002#endif 13003 } 13004 } else { 13005 uint32_t len_to_go; 13006 13007 /* 13008 * In this case, we don't have automatically allocated 13009 * memory for this I/O on this controller. This typically 13010 * happens with internal CTL I/O -- e.g. inquiry, mode 13011 * sense, etc. Anything coming from RAIDCore will have 13012 * a mirror area available. 13013 */ 13014 len_to_go = io->scsiio.kern_data_len; 13015 13016 /* 13017 * Clear the no datasync flag, we have to use malloced 13018 * buffers. 13019 */ 13020 io->io_hdr.flags &= ~CTL_FLAG_NO_DATASYNC; 13021 13022 /* 13023 * The difficult thing here is that the size of the various 13024 * S/G segments may be different than the size from the 13025 * remote controller. That'll make it harder when DMAing 13026 * the data back to the other side. 13027 */ 13028 for (i = 0; (i < sizeof(io->io_hdr.remote_sglist) / 13029 sizeof(io->io_hdr.remote_sglist[0])) && 13030 (len_to_go > 0); i++) { 13031 local_sglist[i].len = ctl_min(len_to_go, 131072); 13032 CTL_SIZE_8B(local_dma_sglist[i].len, 13033 local_sglist[i].len); 13034 local_sglist[i].addr = 13035 malloc(local_dma_sglist[i].len, M_CTL,M_WAITOK); 13036 13037 local_dma_sglist[i].addr = local_sglist[i].addr; 13038 13039 if (local_sglist[i].addr == NULL) { 13040 int j; 13041 13042 printf("malloc failed for %zd bytes!", 13043 local_dma_sglist[i].len); 13044 for (j = 0; j < i; j++) { 13045 free(local_sglist[j].addr, M_CTL); 13046 } 13047 ctl_set_internal_failure(&io->scsiio, 13048 /*sks_valid*/ 1, 13049 /*retry_count*/ 4857); 13050 retval = 1; 13051 goto bailout_error; 13052 13053 } 13054 /* XXX KDM do we need a sync here? */ 13055 13056 len_to_go -= local_sglist[i].len; 13057 } 13058 /* 13059 * Reset the number of S/G entries accordingly. The 13060 * original number of S/G entries is available in 13061 * rem_sg_entries. 13062 */ 13063 io->scsiio.kern_sg_entries = i; 13064 13065#if 0 13066 printf("%s: kern_sg_entries = %d\n", __func__, 13067 io->scsiio.kern_sg_entries); 13068 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13069 printf("%s: sg[%d] = %p, %d (DMA: %d)\n", __func__, i, 13070 local_sglist[i].addr, local_sglist[i].len, 13071 local_dma_sglist[i].len); 13072#endif 13073 } 13074 13075 13076 return (retval); 13077 13078bailout_error: 13079 13080 ctl_send_datamove_done(io, /*have_lock*/ 0); 13081 13082 return (retval); 13083} 13084 13085static int 13086ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 13087 ctl_ha_dt_cb callback) 13088{ 13089 struct ctl_ha_dt_req *rq; 13090 struct ctl_sg_entry *remote_sglist, *local_sglist; 13091 struct ctl_sg_entry *remote_dma_sglist, *local_dma_sglist; 13092 uint32_t local_used, remote_used, total_used; 13093 int retval; 13094 int i, j; 13095 13096 retval = 0; 13097 13098 rq = ctl_dt_req_alloc(); 13099 13100 /* 13101 * If we failed to allocate the request, and if the DMA didn't fail 13102 * anyway, set busy status. This is just a resource allocation 13103 * failure. 13104 */ 13105 if ((rq == NULL) 13106 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)) 13107 ctl_set_busy(&io->scsiio); 13108 13109 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 13110 13111 if (rq != NULL) 13112 ctl_dt_req_free(rq); 13113 13114 /* 13115 * The data move failed. We need to return status back 13116 * to the other controller. No point in trying to DMA 13117 * data to the remote controller. 13118 */ 13119 13120 ctl_send_datamove_done(io, /*have_lock*/ 0); 13121 13122 retval = 1; 13123 13124 goto bailout; 13125 } 13126 13127 local_sglist = io->io_hdr.local_sglist; 13128 local_dma_sglist = io->io_hdr.local_dma_sglist; 13129 remote_sglist = io->io_hdr.remote_sglist; 13130 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13131 local_used = 0; 13132 remote_used = 0; 13133 total_used = 0; 13134 13135 if (io->io_hdr.flags & CTL_FLAG_REDIR_DONE) { 13136 rq->ret = CTL_HA_STATUS_SUCCESS; 13137 rq->context = io; 13138 callback(rq); 13139 goto bailout; 13140 } 13141 13142 /* 13143 * Pull/push the data over the wire from/to the other controller. 13144 * This takes into account the possibility that the local and 13145 * remote sglists may not be identical in terms of the size of 13146 * the elements and the number of elements. 13147 * 13148 * One fundamental assumption here is that the length allocated for 13149 * both the local and remote sglists is identical. Otherwise, we've 13150 * essentially got a coding error of some sort. 13151 */ 13152 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 13153 int isc_ret; 13154 uint32_t cur_len, dma_length; 13155 uint8_t *tmp_ptr; 13156 13157 rq->id = CTL_HA_DATA_CTL; 13158 rq->command = command; 13159 rq->context = io; 13160 13161 /* 13162 * Both pointers should be aligned. But it is possible 13163 * that the allocation length is not. They should both 13164 * also have enough slack left over at the end, though, 13165 * to round up to the next 8 byte boundary. 13166 */ 13167 cur_len = ctl_min(local_sglist[i].len - local_used, 13168 remote_sglist[j].len - remote_used); 13169 13170 /* 13171 * In this case, we have a size issue and need to decrease 13172 * the size, except in the case where we actually have less 13173 * than 8 bytes left. In that case, we need to increase 13174 * the DMA length to get the last bit. 13175 */ 13176 if ((cur_len & 0x7) != 0) { 13177 if (cur_len > 0x7) { 13178 cur_len = cur_len - (cur_len & 0x7); 13179 dma_length = cur_len; 13180 } else { 13181 CTL_SIZE_8B(dma_length, cur_len); 13182 } 13183 13184 } else 13185 dma_length = cur_len; 13186 13187 /* 13188 * If we had to allocate memory for this I/O, instead of using 13189 * the non-cached mirror memory, we'll need to flush the cache 13190 * before trying to DMA to the other controller. 13191 * 13192 * We could end up doing this multiple times for the same 13193 * segment if we have a larger local segment than remote 13194 * segment. That shouldn't be an issue. 13195 */ 13196 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 13197 /* 13198 * XXX KDM use bus_dmamap_sync() here. 13199 */ 13200 } 13201 13202 rq->size = dma_length; 13203 13204 tmp_ptr = (uint8_t *)local_sglist[i].addr; 13205 tmp_ptr += local_used; 13206 13207 /* Use physical addresses when talking to ISC hardware */ 13208 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 13209 /* XXX KDM use busdma */ 13210#if 0 13211 rq->local = vtophys(tmp_ptr); 13212#endif 13213 } else 13214 rq->local = tmp_ptr; 13215 13216 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 13217 tmp_ptr += remote_used; 13218 rq->remote = tmp_ptr; 13219 13220 rq->callback = NULL; 13221 13222 local_used += cur_len; 13223 if (local_used >= local_sglist[i].len) { 13224 i++; 13225 local_used = 0; 13226 } 13227 13228 remote_used += cur_len; 13229 if (remote_used >= remote_sglist[j].len) { 13230 j++; 13231 remote_used = 0; 13232 } 13233 total_used += cur_len; 13234 13235 if (total_used >= io->scsiio.kern_data_len) 13236 rq->callback = callback; 13237 13238 if ((rq->size & 0x7) != 0) { 13239 printf("%s: warning: size %d is not on 8b boundary\n", 13240 __func__, rq->size); 13241 } 13242 if (((uintptr_t)rq->local & 0x7) != 0) { 13243 printf("%s: warning: local %p not on 8b boundary\n", 13244 __func__, rq->local); 13245 } 13246 if (((uintptr_t)rq->remote & 0x7) != 0) { 13247 printf("%s: warning: remote %p not on 8b boundary\n", 13248 __func__, rq->local); 13249 } 13250#if 0 13251 printf("%s: %s: local %#x remote %#x size %d\n", __func__, 13252 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13253 rq->local, rq->remote, rq->size); 13254#endif 13255 13256 isc_ret = ctl_dt_single(rq); 13257 if (isc_ret == CTL_HA_STATUS_WAIT) 13258 continue; 13259 13260 if (isc_ret == CTL_HA_STATUS_DISCONNECT) { 13261 rq->ret = CTL_HA_STATUS_SUCCESS; 13262 } else { 13263 rq->ret = isc_ret; 13264 } 13265 callback(rq); 13266 goto bailout; 13267 } 13268 13269bailout: 13270 return (retval); 13271 13272} 13273 13274static void 13275ctl_datamove_remote_read(union ctl_io *io) 13276{ 13277 int retval; 13278 int i; 13279 13280 /* 13281 * This will send an error to the other controller in the case of a 13282 * failure. 13283 */ 13284 retval = ctl_datamove_remote_sgl_setup(io); 13285 if (retval != 0) 13286 return; 13287 13288 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13289 ctl_datamove_remote_read_cb); 13290 if ((retval != 0) 13291 && ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0)) { 13292 /* 13293 * Make sure we free memory if there was an error.. The 13294 * ctl_datamove_remote_xfer() function will send the 13295 * datamove done message, or call the callback with an 13296 * error if there is a problem. 13297 */ 13298 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13299 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13300 } 13301 13302 return; 13303} 13304 13305/* 13306 * Process a datamove request from the other controller. This is used for 13307 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13308 * first. Once that is complete, the data gets DMAed into the remote 13309 * controller's memory. For reads, we DMA from the remote controller's 13310 * memory into our memory first, and then move it out to the FETD. 13311 */ 13312static void 13313ctl_datamove_remote(union ctl_io *io) 13314{ 13315 struct ctl_softc *softc; 13316 13317 softc = control_softc; 13318 13319 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 13320 13321 /* 13322 * Note that we look for an aborted I/O here, but don't do some of 13323 * the other checks that ctl_datamove() normally does. 13324 * We don't need to run the datamove delay code, since that should 13325 * have been done if need be on the other controller. 13326 */ 13327 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13328 printf("%s: tag 0x%04x on (%d:%d:%d:%d) aborted\n", __func__, 13329 io->scsiio.tag_num, io->io_hdr.nexus.initid.id, 13330 io->io_hdr.nexus.targ_port, 13331 io->io_hdr.nexus.targ_target.id, 13332 io->io_hdr.nexus.targ_lun); 13333 io->io_hdr.port_status = 31338; 13334 ctl_send_datamove_done(io, /*have_lock*/ 0); 13335 return; 13336 } 13337 13338 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) { 13339 ctl_datamove_remote_write(io); 13340 } else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN){ 13341 ctl_datamove_remote_read(io); 13342 } else { 13343 union ctl_ha_msg msg; 13344 struct scsi_sense_data *sense; 13345 uint8_t sks[3]; 13346 int retry_count; 13347 13348 memset(&msg, 0, sizeof(msg)); 13349 13350 msg.hdr.msg_type = CTL_MSG_BAD_JUJU; 13351 msg.hdr.status = CTL_SCSI_ERROR; 13352 msg.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 13353 13354 retry_count = 4243; 13355 13356 sense = &msg.scsi.sense_data; 13357 sks[0] = SSD_SCS_VALID; 13358 sks[1] = (retry_count >> 8) & 0xff; 13359 sks[2] = retry_count & 0xff; 13360 13361 /* "Internal target failure" */ 13362 scsi_set_sense_data(sense, 13363 /*sense_format*/ SSD_TYPE_NONE, 13364 /*current_error*/ 1, 13365 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 13366 /*asc*/ 0x44, 13367 /*ascq*/ 0x00, 13368 /*type*/ SSD_ELEM_SKS, 13369 /*size*/ sizeof(sks), 13370 /*data*/ sks, 13371 SSD_ELEM_NONE); 13372 13373 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13374 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13375 ctl_failover_io(io, /*have_lock*/ 1); 13376 return; 13377 } 13378 13379 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0) > 13380 CTL_HA_STATUS_SUCCESS) { 13381 /* XXX KDM what to do if this fails? */ 13382 } 13383 return; 13384 } 13385 13386} 13387 13388static int 13389ctl_process_done(union ctl_io *io) 13390{ 13391 struct ctl_lun *lun; 13392 struct ctl_softc *ctl_softc = control_softc; 13393 void (*fe_done)(union ctl_io *io); 13394 uint32_t targ_port = ctl_port_idx(io->io_hdr.nexus.targ_port); 13395 13396 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13397 13398 fe_done = 13399 control_softc->ctl_ports[targ_port]->fe_done; 13400 13401#ifdef CTL_TIME_IO 13402 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13403 char str[256]; 13404 char path_str[64]; 13405 struct sbuf sb; 13406 13407 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13408 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13409 13410 sbuf_cat(&sb, path_str); 13411 switch (io->io_hdr.io_type) { 13412 case CTL_IO_SCSI: 13413 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13414 sbuf_printf(&sb, "\n"); 13415 sbuf_cat(&sb, path_str); 13416 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13417 io->scsiio.tag_num, io->scsiio.tag_type); 13418 break; 13419 case CTL_IO_TASK: 13420 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13421 "Tag Type: %d\n", io->taskio.task_action, 13422 io->taskio.tag_num, io->taskio.tag_type); 13423 break; 13424 default: 13425 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13426 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13427 break; 13428 } 13429 sbuf_cat(&sb, path_str); 13430 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13431 (intmax_t)time_uptime - io->io_hdr.start_time); 13432 sbuf_finish(&sb); 13433 printf("%s", sbuf_data(&sb)); 13434 } 13435#endif /* CTL_TIME_IO */ 13436 13437 switch (io->io_hdr.io_type) { 13438 case CTL_IO_SCSI: 13439 break; 13440 case CTL_IO_TASK: 13441 if (bootverbose || (ctl_debug & CTL_DEBUG_INFO)) 13442 ctl_io_error_print(io, NULL); 13443 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 13444 ctl_free_io(io); 13445 else 13446 fe_done(io); 13447 return (CTL_RETVAL_COMPLETE); 13448 default: 13449 panic("ctl_process_done: invalid io type %d\n", 13450 io->io_hdr.io_type); 13451 break; /* NOTREACHED */ 13452 } 13453 13454 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13455 if (lun == NULL) { 13456 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13457 io->io_hdr.nexus.targ_mapped_lun)); 13458 goto bailout; 13459 } 13460 13461 mtx_lock(&lun->lun_lock); 13462 13463 /* 13464 * Check to see if we have any errors to inject here. We only 13465 * inject errors for commands that don't already have errors set. 13466 */ 13467 if ((STAILQ_FIRST(&lun->error_list) != NULL) && 13468 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) && 13469 ((io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0)) 13470 ctl_inject_error(lun, io); 13471 13472 /* 13473 * XXX KDM how do we treat commands that aren't completed 13474 * successfully? 13475 * 13476 * XXX KDM should we also track I/O latency? 13477 */ 13478 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13479 io->io_hdr.io_type == CTL_IO_SCSI) { 13480#ifdef CTL_TIME_IO 13481 struct bintime cur_bt; 13482#endif 13483 int type; 13484 13485 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13486 CTL_FLAG_DATA_IN) 13487 type = CTL_STATS_READ; 13488 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13489 CTL_FLAG_DATA_OUT) 13490 type = CTL_STATS_WRITE; 13491 else 13492 type = CTL_STATS_NO_IO; 13493 13494 lun->stats.ports[targ_port].bytes[type] += 13495 io->scsiio.kern_total_len; 13496 lun->stats.ports[targ_port].operations[type]++; 13497#ifdef CTL_TIME_IO 13498 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13499 &io->io_hdr.dma_bt); 13500 lun->stats.ports[targ_port].num_dmas[type] += 13501 io->io_hdr.num_dmas; 13502 getbintime(&cur_bt); 13503 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13504 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13505#endif 13506 } 13507 13508 /* 13509 * Remove this from the OOA queue. 13510 */ 13511 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13512 13513 /* 13514 * Run through the blocked queue on this LUN and see if anything 13515 * has become unblocked, now that this transaction is done. 13516 */ 13517 ctl_check_blocked(lun); 13518 13519 /* 13520 * If the LUN has been invalidated, free it if there is nothing 13521 * left on its OOA queue. 13522 */ 13523 if ((lun->flags & CTL_LUN_INVALID) 13524 && TAILQ_EMPTY(&lun->ooa_queue)) { 13525 mtx_unlock(&lun->lun_lock); 13526 mtx_lock(&ctl_softc->ctl_lock); 13527 ctl_free_lun(lun); 13528 mtx_unlock(&ctl_softc->ctl_lock); 13529 } else 13530 mtx_unlock(&lun->lun_lock); 13531 13532bailout: 13533 13534 /* 13535 * If this command has been aborted, make sure we set the status 13536 * properly. The FETD is responsible for freeing the I/O and doing 13537 * whatever it needs to do to clean up its state. 13538 */ 13539 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13540 ctl_set_task_aborted(&io->scsiio); 13541 13542 /* 13543 * If enabled, print command error status. 13544 * We don't print UAs unless debugging was enabled explicitly. 13545 */ 13546 do { 13547 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) 13548 break; 13549 if (!bootverbose && (ctl_debug & CTL_DEBUG_INFO) == 0) 13550 break; 13551 if ((ctl_debug & CTL_DEBUG_INFO) == 0 && 13552 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SCSI_ERROR) && 13553 (io->scsiio.scsi_status == SCSI_STATUS_CHECK_COND)) { 13554 int error_code, sense_key, asc, ascq; 13555 13556 scsi_extract_sense_len(&io->scsiio.sense_data, 13557 io->scsiio.sense_len, &error_code, &sense_key, 13558 &asc, &ascq, /*show_errors*/ 0); 13559 if (sense_key == SSD_KEY_UNIT_ATTENTION) 13560 break; 13561 } 13562 13563 ctl_io_error_print(io, NULL); 13564 } while (0); 13565 13566 /* 13567 * Tell the FETD or the other shelf controller we're done with this 13568 * command. Note that only SCSI commands get to this point. Task 13569 * management commands are completed above. 13570 * 13571 * We only send status to the other controller if we're in XFER 13572 * mode. In SER_ONLY mode, the I/O is done on the controller that 13573 * received the I/O (from CTL's perspective), and so the status is 13574 * generated there. 13575 * 13576 * XXX KDM if we hold the lock here, we could cause a deadlock 13577 * if the frontend comes back in in this context to queue 13578 * something. 13579 */ 13580 if ((ctl_softc->ha_mode == CTL_HA_MODE_XFER) 13581 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 13582 union ctl_ha_msg msg; 13583 13584 memset(&msg, 0, sizeof(msg)); 13585 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13586 msg.hdr.original_sc = io->io_hdr.original_sc; 13587 msg.hdr.nexus = io->io_hdr.nexus; 13588 msg.hdr.status = io->io_hdr.status; 13589 msg.scsi.scsi_status = io->scsiio.scsi_status; 13590 msg.scsi.tag_num = io->scsiio.tag_num; 13591 msg.scsi.tag_type = io->scsiio.tag_type; 13592 msg.scsi.sense_len = io->scsiio.sense_len; 13593 msg.scsi.sense_residual = io->scsiio.sense_residual; 13594 msg.scsi.residual = io->scsiio.residual; 13595 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13596 sizeof(io->scsiio.sense_data)); 13597 /* 13598 * We copy this whether or not this is an I/O-related 13599 * command. Otherwise, we'd have to go and check to see 13600 * whether it's a read/write command, and it really isn't 13601 * worth it. 13602 */ 13603 memcpy(&msg.scsi.lbalen, 13604 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 13605 sizeof(msg.scsi.lbalen)); 13606 13607 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13608 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13609 /* XXX do something here */ 13610 } 13611 13612 ctl_free_io(io); 13613 } else 13614 fe_done(io); 13615 13616 return (CTL_RETVAL_COMPLETE); 13617} 13618 13619#ifdef CTL_WITH_CA 13620/* 13621 * Front end should call this if it doesn't do autosense. When the request 13622 * sense comes back in from the initiator, we'll dequeue this and send it. 13623 */ 13624int 13625ctl_queue_sense(union ctl_io *io) 13626{ 13627 struct ctl_lun *lun; 13628 struct ctl_softc *ctl_softc; 13629 uint32_t initidx, targ_lun; 13630 13631 ctl_softc = control_softc; 13632 13633 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13634 13635 /* 13636 * LUN lookup will likely move to the ctl_work_thread() once we 13637 * have our new queueing infrastructure (that doesn't put things on 13638 * a per-LUN queue initially). That is so that we can handle 13639 * things like an INQUIRY to a LUN that we don't have enabled. We 13640 * can't deal with that right now. 13641 */ 13642 mtx_lock(&ctl_softc->ctl_lock); 13643 13644 /* 13645 * If we don't have a LUN for this, just toss the sense 13646 * information. 13647 */ 13648 targ_lun = io->io_hdr.nexus.targ_lun; 13649 targ_lun = ctl_map_lun(io->io_hdr.nexus.targ_port, targ_lun); 13650 if ((targ_lun < CTL_MAX_LUNS) 13651 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 13652 lun = ctl_softc->ctl_luns[targ_lun]; 13653 else 13654 goto bailout; 13655 13656 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13657 13658 mtx_lock(&lun->lun_lock); 13659 /* 13660 * Already have CA set for this LUN...toss the sense information. 13661 */ 13662 if (ctl_is_set(lun->have_ca, initidx)) { 13663 mtx_unlock(&lun->lun_lock); 13664 goto bailout; 13665 } 13666 13667 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13668 ctl_min(sizeof(lun->pending_sense[initidx]), 13669 sizeof(io->scsiio.sense_data))); 13670 ctl_set_mask(lun->have_ca, initidx); 13671 mtx_unlock(&lun->lun_lock); 13672 13673bailout: 13674 mtx_unlock(&ctl_softc->ctl_lock); 13675 13676 ctl_free_io(io); 13677 13678 return (CTL_RETVAL_COMPLETE); 13679} 13680#endif 13681 13682/* 13683 * Primary command inlet from frontend ports. All SCSI and task I/O 13684 * requests must go through this function. 13685 */ 13686int 13687ctl_queue(union ctl_io *io) 13688{ 13689 struct ctl_softc *ctl_softc; 13690 13691 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13692 13693 ctl_softc = control_softc; 13694 13695#ifdef CTL_TIME_IO 13696 io->io_hdr.start_time = time_uptime; 13697 getbintime(&io->io_hdr.start_bt); 13698#endif /* CTL_TIME_IO */ 13699 13700 /* Map FE-specific LUN ID into global one. */ 13701 io->io_hdr.nexus.targ_mapped_lun = 13702 ctl_map_lun(io->io_hdr.nexus.targ_port, io->io_hdr.nexus.targ_lun); 13703 13704 switch (io->io_hdr.io_type) { 13705 case CTL_IO_SCSI: 13706 case CTL_IO_TASK: 13707 if (ctl_debug & CTL_DEBUG_CDB) 13708 ctl_io_print(io); 13709 ctl_enqueue_incoming(io); 13710 break; 13711 default: 13712 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13713 return (EINVAL); 13714 } 13715 13716 return (CTL_RETVAL_COMPLETE); 13717} 13718 13719#ifdef CTL_IO_DELAY 13720static void 13721ctl_done_timer_wakeup(void *arg) 13722{ 13723 union ctl_io *io; 13724 13725 io = (union ctl_io *)arg; 13726 ctl_done(io); 13727} 13728#endif /* CTL_IO_DELAY */ 13729 13730void 13731ctl_done(union ctl_io *io) 13732{ 13733 struct ctl_softc *ctl_softc; 13734 13735 ctl_softc = control_softc; 13736 13737 /* 13738 * Enable this to catch duplicate completion issues. 13739 */ 13740#if 0 13741 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13742 printf("%s: type %d msg %d cdb %x iptl: " 13743 "%d:%d:%d:%d tag 0x%04x " 13744 "flag %#x status %x\n", 13745 __func__, 13746 io->io_hdr.io_type, 13747 io->io_hdr.msg_type, 13748 io->scsiio.cdb[0], 13749 io->io_hdr.nexus.initid.id, 13750 io->io_hdr.nexus.targ_port, 13751 io->io_hdr.nexus.targ_target.id, 13752 io->io_hdr.nexus.targ_lun, 13753 (io->io_hdr.io_type == 13754 CTL_IO_TASK) ? 13755 io->taskio.tag_num : 13756 io->scsiio.tag_num, 13757 io->io_hdr.flags, 13758 io->io_hdr.status); 13759 } else 13760 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13761#endif 13762 13763 /* 13764 * This is an internal copy of an I/O, and should not go through 13765 * the normal done processing logic. 13766 */ 13767 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13768 return; 13769 13770 /* 13771 * We need to send a msg to the serializing shelf to finish the IO 13772 * as well. We don't send a finish message to the other shelf if 13773 * this is a task management command. Task management commands 13774 * aren't serialized in the OOA queue, but rather just executed on 13775 * both shelf controllers for commands that originated on that 13776 * controller. 13777 */ 13778 if ((io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC) 13779 && (io->io_hdr.io_type != CTL_IO_TASK)) { 13780 union ctl_ha_msg msg_io; 13781 13782 msg_io.hdr.msg_type = CTL_MSG_FINISH_IO; 13783 msg_io.hdr.serializing_sc = io->io_hdr.serializing_sc; 13784 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_io, 13785 sizeof(msg_io), 0 ) != CTL_HA_STATUS_SUCCESS) { 13786 } 13787 /* continue on to finish IO */ 13788 } 13789#ifdef CTL_IO_DELAY 13790 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13791 struct ctl_lun *lun; 13792 13793 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13794 13795 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13796 } else { 13797 struct ctl_lun *lun; 13798 13799 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13800 13801 if ((lun != NULL) 13802 && (lun->delay_info.done_delay > 0)) { 13803 struct callout *callout; 13804 13805 callout = (struct callout *)&io->io_hdr.timer_bytes; 13806 callout_init(callout, /*mpsafe*/ 1); 13807 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13808 callout_reset(callout, 13809 lun->delay_info.done_delay * hz, 13810 ctl_done_timer_wakeup, io); 13811 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13812 lun->delay_info.done_delay = 0; 13813 return; 13814 } 13815 } 13816#endif /* CTL_IO_DELAY */ 13817 13818 ctl_enqueue_done(io); 13819} 13820 13821int 13822ctl_isc(struct ctl_scsiio *ctsio) 13823{ 13824 struct ctl_lun *lun; 13825 int retval; 13826 13827 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13828 13829 CTL_DEBUG_PRINT(("ctl_isc: command: %02x\n", ctsio->cdb[0])); 13830 13831 CTL_DEBUG_PRINT(("ctl_isc: calling data_submit()\n")); 13832 13833 retval = lun->backend->data_submit((union ctl_io *)ctsio); 13834 13835 return (retval); 13836} 13837 13838 13839static void 13840ctl_work_thread(void *arg) 13841{ 13842 struct ctl_thread *thr = (struct ctl_thread *)arg; 13843 struct ctl_softc *softc = thr->ctl_softc; 13844 union ctl_io *io; 13845 int retval; 13846 13847 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13848 13849 for (;;) { 13850 retval = 0; 13851 13852 /* 13853 * We handle the queues in this order: 13854 * - ISC 13855 * - done queue (to free up resources, unblock other commands) 13856 * - RtR queue 13857 * - incoming queue 13858 * 13859 * If those queues are empty, we break out of the loop and 13860 * go to sleep. 13861 */ 13862 mtx_lock(&thr->queue_lock); 13863 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13864 if (io != NULL) { 13865 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13866 mtx_unlock(&thr->queue_lock); 13867 ctl_handle_isc(io); 13868 continue; 13869 } 13870 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13871 if (io != NULL) { 13872 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13873 /* clear any blocked commands, call fe_done */ 13874 mtx_unlock(&thr->queue_lock); 13875 retval = ctl_process_done(io); 13876 continue; 13877 } 13878 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13879 if (io != NULL) { 13880 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13881 mtx_unlock(&thr->queue_lock); 13882 if (io->io_hdr.io_type == CTL_IO_TASK) 13883 ctl_run_task(io); 13884 else 13885 ctl_scsiio_precheck(softc, &io->scsiio); 13886 continue; 13887 } 13888 if (!ctl_pause_rtr) { 13889 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13890 if (io != NULL) { 13891 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13892 mtx_unlock(&thr->queue_lock); 13893 retval = ctl_scsiio(&io->scsiio); 13894 if (retval != CTL_RETVAL_COMPLETE) 13895 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13896 continue; 13897 } 13898 } 13899 13900 /* Sleep until we have something to do. */ 13901 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13902 } 13903} 13904 13905static void 13906ctl_lun_thread(void *arg) 13907{ 13908 struct ctl_softc *softc = (struct ctl_softc *)arg; 13909 struct ctl_be_lun *be_lun; 13910 int retval; 13911 13912 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 13913 13914 for (;;) { 13915 retval = 0; 13916 mtx_lock(&softc->ctl_lock); 13917 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 13918 if (be_lun != NULL) { 13919 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 13920 mtx_unlock(&softc->ctl_lock); 13921 ctl_create_lun(be_lun); 13922 continue; 13923 } 13924 13925 /* Sleep until we have something to do. */ 13926 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 13927 PDROP | PRIBIO, "-", 0); 13928 } 13929} 13930 13931static void 13932ctl_thresh_thread(void *arg) 13933{ 13934 struct ctl_softc *softc = (struct ctl_softc *)arg; 13935 struct ctl_lun *lun; 13936 struct ctl_be_lun *be_lun; 13937 struct scsi_da_rw_recovery_page *rwpage; 13938 struct ctl_logical_block_provisioning_page *page; 13939 const char *attr; 13940 uint64_t thres, val; 13941 int i, e; 13942 13943 CTL_DEBUG_PRINT(("ctl_thresh_thread starting\n")); 13944 13945 for (;;) { 13946 mtx_lock(&softc->ctl_lock); 13947 STAILQ_FOREACH(lun, &softc->lun_list, links) { 13948 be_lun = lun->be_lun; 13949 if ((lun->flags & CTL_LUN_DISABLED) || 13950 (lun->flags & CTL_LUN_OFFLINE) || 13951 (be_lun->flags & CTL_LUN_FLAG_UNMAP) == 0 || 13952 lun->backend->lun_attr == NULL) 13953 continue; 13954 rwpage = &lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT]; 13955 if ((rwpage->byte8 & SMS_RWER_LBPERE) == 0) 13956 continue; 13957 e = 0; 13958 page = &lun->mode_pages.lbp_page[CTL_PAGE_CURRENT]; 13959 for (i = 0; i < CTL_NUM_LBP_THRESH; i++) { 13960 if ((page->descr[i].flags & SLBPPD_ENABLED) == 0) 13961 continue; 13962 thres = scsi_4btoul(page->descr[i].count); 13963 thres <<= CTL_LBP_EXPONENT; 13964 switch (page->descr[i].resource) { 13965 case 0x01: 13966 attr = "blocksavail"; 13967 break; 13968 case 0x02: 13969 attr = "blocksused"; 13970 break; 13971 case 0xf1: 13972 attr = "poolblocksavail"; 13973 break; 13974 case 0xf2: 13975 attr = "poolblocksused"; 13976 break; 13977 default: 13978 continue; 13979 } 13980 mtx_unlock(&softc->ctl_lock); // XXX 13981 val = lun->backend->lun_attr( 13982 lun->be_lun->be_lun, attr); 13983 mtx_lock(&softc->ctl_lock); 13984 if (val == UINT64_MAX) 13985 continue; 13986 if ((page->descr[i].flags & SLBPPD_ARMING_MASK) 13987 == SLBPPD_ARMING_INC) 13988 e |= (val >= thres); 13989 else 13990 e |= (val <= thres); 13991 } 13992 mtx_lock(&lun->lun_lock); 13993 if (e) { 13994 if (lun->lasttpt == 0 || 13995 time_uptime - lun->lasttpt >= CTL_LBP_UA_PERIOD) { 13996 lun->lasttpt = time_uptime; 13997 for (i = 0; i < CTL_MAX_INITIATORS; i++) 13998 lun->pending_ua[i] |= 13999 CTL_UA_THIN_PROV_THRES; 14000 } 14001 } else { 14002 lun->lasttpt = 0; 14003 for (i = 0; i < CTL_MAX_INITIATORS; i++) 14004 lun->pending_ua[i] &= ~CTL_UA_THIN_PROV_THRES; 14005 } 14006 mtx_unlock(&lun->lun_lock); 14007 } 14008 mtx_unlock(&softc->ctl_lock); 14009 pause("-", CTL_LBP_PERIOD * hz); 14010 } 14011} 14012 14013static void 14014ctl_enqueue_incoming(union ctl_io *io) 14015{ 14016 struct ctl_softc *softc = control_softc; 14017 struct ctl_thread *thr; 14018 u_int idx; 14019 14020 idx = (io->io_hdr.nexus.targ_port * 127 + 14021 io->io_hdr.nexus.initid.id) % worker_threads; 14022 thr = &softc->threads[idx]; 14023 mtx_lock(&thr->queue_lock); 14024 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 14025 mtx_unlock(&thr->queue_lock); 14026 wakeup(thr); 14027} 14028 14029static void 14030ctl_enqueue_rtr(union ctl_io *io) 14031{ 14032 struct ctl_softc *softc = control_softc; 14033 struct ctl_thread *thr; 14034 14035 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14036 mtx_lock(&thr->queue_lock); 14037 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 14038 mtx_unlock(&thr->queue_lock); 14039 wakeup(thr); 14040} 14041 14042static void 14043ctl_enqueue_done(union ctl_io *io) 14044{ 14045 struct ctl_softc *softc = control_softc; 14046 struct ctl_thread *thr; 14047 14048 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14049 mtx_lock(&thr->queue_lock); 14050 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 14051 mtx_unlock(&thr->queue_lock); 14052 wakeup(thr); 14053} 14054 14055static void 14056ctl_enqueue_isc(union ctl_io *io) 14057{ 14058 struct ctl_softc *softc = control_softc; 14059 struct ctl_thread *thr; 14060 14061 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14062 mtx_lock(&thr->queue_lock); 14063 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 14064 mtx_unlock(&thr->queue_lock); 14065 wakeup(thr); 14066} 14067 14068/* Initialization and failover */ 14069 14070void 14071ctl_init_isc_msg(void) 14072{ 14073 printf("CTL: Still calling this thing\n"); 14074} 14075 14076/* 14077 * Init component 14078 * Initializes component into configuration defined by bootMode 14079 * (see hasc-sv.c) 14080 * returns hasc_Status: 14081 * OK 14082 * ERROR - fatal error 14083 */ 14084static ctl_ha_comp_status 14085ctl_isc_init(struct ctl_ha_component *c) 14086{ 14087 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14088 14089 c->status = ret; 14090 return ret; 14091} 14092 14093/* Start component 14094 * Starts component in state requested. If component starts successfully, 14095 * it must set its own state to the requestrd state 14096 * When requested state is HASC_STATE_HA, the component may refine it 14097 * by adding _SLAVE or _MASTER flags. 14098 * Currently allowed state transitions are: 14099 * UNKNOWN->HA - initial startup 14100 * UNKNOWN->SINGLE - initial startup when no parter detected 14101 * HA->SINGLE - failover 14102 * returns ctl_ha_comp_status: 14103 * OK - component successfully started in requested state 14104 * FAILED - could not start the requested state, failover may 14105 * be possible 14106 * ERROR - fatal error detected, no future startup possible 14107 */ 14108static ctl_ha_comp_status 14109ctl_isc_start(struct ctl_ha_component *c, ctl_ha_state state) 14110{ 14111 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14112 14113 printf("%s: go\n", __func__); 14114 14115 // UNKNOWN->HA or UNKNOWN->SINGLE (bootstrap) 14116 if (c->state == CTL_HA_STATE_UNKNOWN ) { 14117 control_softc->is_single = 0; 14118 if (ctl_ha_msg_create(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 14119 != CTL_HA_STATUS_SUCCESS) { 14120 printf("ctl_isc_start: ctl_ha_msg_create failed.\n"); 14121 ret = CTL_HA_COMP_STATUS_ERROR; 14122 } 14123 } else if (CTL_HA_STATE_IS_HA(c->state) 14124 && CTL_HA_STATE_IS_SINGLE(state)){ 14125 // HA->SINGLE transition 14126 ctl_failover(); 14127 control_softc->is_single = 1; 14128 } else { 14129 printf("ctl_isc_start:Invalid state transition %X->%X\n", 14130 c->state, state); 14131 ret = CTL_HA_COMP_STATUS_ERROR; 14132 } 14133 if (CTL_HA_STATE_IS_SINGLE(state)) 14134 control_softc->is_single = 1; 14135 14136 c->state = state; 14137 c->status = ret; 14138 return ret; 14139} 14140 14141/* 14142 * Quiesce component 14143 * The component must clear any error conditions (set status to OK) and 14144 * prepare itself to another Start call 14145 * returns ctl_ha_comp_status: 14146 * OK 14147 * ERROR 14148 */ 14149static ctl_ha_comp_status 14150ctl_isc_quiesce(struct ctl_ha_component *c) 14151{ 14152 int ret = CTL_HA_COMP_STATUS_OK; 14153 14154 ctl_pause_rtr = 1; 14155 c->status = ret; 14156 return ret; 14157} 14158 14159struct ctl_ha_component ctl_ha_component_ctlisc = 14160{ 14161 .name = "CTL ISC", 14162 .state = CTL_HA_STATE_UNKNOWN, 14163 .init = ctl_isc_init, 14164 .start = ctl_isc_start, 14165 .quiesce = ctl_isc_quiesce 14166}; 14167 14168/* 14169 * vim: ts=8 14170 */ 14171