ctl.c revision 274785
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 274785 2014-11-21 06:27:37Z 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 68#include <cam/cam.h> 69#include <cam/scsi/scsi_all.h> 70#include <cam/scsi/scsi_da.h> 71#include <cam/ctl/ctl_io.h> 72#include <cam/ctl/ctl.h> 73#include <cam/ctl/ctl_frontend.h> 74#include <cam/ctl/ctl_frontend_internal.h> 75#include <cam/ctl/ctl_util.h> 76#include <cam/ctl/ctl_backend.h> 77#include <cam/ctl/ctl_ioctl.h> 78#include <cam/ctl/ctl_ha.h> 79#include <cam/ctl/ctl_private.h> 80#include <cam/ctl/ctl_debug.h> 81#include <cam/ctl/ctl_scsi_all.h> 82#include <cam/ctl/ctl_error.h> 83 84struct ctl_softc *control_softc = NULL; 85 86/* 87 * Size and alignment macros needed for Copan-specific HA hardware. These 88 * can go away when the HA code is re-written, and uses busdma for any 89 * hardware. 90 */ 91#define CTL_ALIGN_8B(target, source, type) \ 92 if (((uint32_t)source & 0x7) != 0) \ 93 target = (type)(source + (0x8 - ((uint32_t)source & 0x7)));\ 94 else \ 95 target = (type)source; 96 97#define CTL_SIZE_8B(target, size) \ 98 if ((size & 0x7) != 0) \ 99 target = size + (0x8 - (size & 0x7)); \ 100 else \ 101 target = size; 102 103#define CTL_ALIGN_8B_MARGIN 16 104 105/* 106 * Template mode pages. 107 */ 108 109/* 110 * Note that these are default values only. The actual values will be 111 * filled in when the user does a mode sense. 112 */ 113static struct copan_debugconf_subpage debugconf_page_default = { 114 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 115 DBGCNF_SUBPAGE_CODE, /* subpage */ 116 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 117 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 118 DBGCNF_VERSION, /* page_version */ 119 {CTL_TIME_IO_DEFAULT_SECS>>8, 120 CTL_TIME_IO_DEFAULT_SECS>>0}, /* ctl_time_io_secs */ 121}; 122 123static struct copan_debugconf_subpage debugconf_page_changeable = { 124 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 125 DBGCNF_SUBPAGE_CODE, /* subpage */ 126 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 127 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 128 0, /* page_version */ 129 {0xff,0xff}, /* ctl_time_io_secs */ 130}; 131 132static struct scsi_da_rw_recovery_page rw_er_page_default = { 133 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 134 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 135 /*byte3*/SMS_RWER_AWRE|SMS_RWER_ARRE, 136 /*read_retry_count*/0, 137 /*correction_span*/0, 138 /*head_offset_count*/0, 139 /*data_strobe_offset_cnt*/0, 140 /*byte8*/SMS_RWER_LBPERE, 141 /*write_retry_count*/0, 142 /*reserved2*/0, 143 /*recovery_time_limit*/{0, 0}, 144}; 145 146static struct scsi_da_rw_recovery_page rw_er_page_changeable = { 147 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 148 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 149 /*byte3*/0, 150 /*read_retry_count*/0, 151 /*correction_span*/0, 152 /*head_offset_count*/0, 153 /*data_strobe_offset_cnt*/0, 154 /*byte8*/0, 155 /*write_retry_count*/0, 156 /*reserved2*/0, 157 /*recovery_time_limit*/{0, 0}, 158}; 159 160static struct scsi_format_page format_page_default = { 161 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 162 /*page_length*/sizeof(struct scsi_format_page) - 2, 163 /*tracks_per_zone*/ {0, 0}, 164 /*alt_sectors_per_zone*/ {0, 0}, 165 /*alt_tracks_per_zone*/ {0, 0}, 166 /*alt_tracks_per_lun*/ {0, 0}, 167 /*sectors_per_track*/ {(CTL_DEFAULT_SECTORS_PER_TRACK >> 8) & 0xff, 168 CTL_DEFAULT_SECTORS_PER_TRACK & 0xff}, 169 /*bytes_per_sector*/ {0, 0}, 170 /*interleave*/ {0, 0}, 171 /*track_skew*/ {0, 0}, 172 /*cylinder_skew*/ {0, 0}, 173 /*flags*/ SFP_HSEC, 174 /*reserved*/ {0, 0, 0} 175}; 176 177static struct scsi_format_page format_page_changeable = { 178 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 179 /*page_length*/sizeof(struct scsi_format_page) - 2, 180 /*tracks_per_zone*/ {0, 0}, 181 /*alt_sectors_per_zone*/ {0, 0}, 182 /*alt_tracks_per_zone*/ {0, 0}, 183 /*alt_tracks_per_lun*/ {0, 0}, 184 /*sectors_per_track*/ {0, 0}, 185 /*bytes_per_sector*/ {0, 0}, 186 /*interleave*/ {0, 0}, 187 /*track_skew*/ {0, 0}, 188 /*cylinder_skew*/ {0, 0}, 189 /*flags*/ 0, 190 /*reserved*/ {0, 0, 0} 191}; 192 193static struct scsi_rigid_disk_page rigid_disk_page_default = { 194 /*page_code*/SMS_RIGID_DISK_PAGE, 195 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 196 /*cylinders*/ {0, 0, 0}, 197 /*heads*/ CTL_DEFAULT_HEADS, 198 /*start_write_precomp*/ {0, 0, 0}, 199 /*start_reduced_current*/ {0, 0, 0}, 200 /*step_rate*/ {0, 0}, 201 /*landing_zone_cylinder*/ {0, 0, 0}, 202 /*rpl*/ SRDP_RPL_DISABLED, 203 /*rotational_offset*/ 0, 204 /*reserved1*/ 0, 205 /*rotation_rate*/ {(CTL_DEFAULT_ROTATION_RATE >> 8) & 0xff, 206 CTL_DEFAULT_ROTATION_RATE & 0xff}, 207 /*reserved2*/ {0, 0} 208}; 209 210static struct scsi_rigid_disk_page rigid_disk_page_changeable = { 211 /*page_code*/SMS_RIGID_DISK_PAGE, 212 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 213 /*cylinders*/ {0, 0, 0}, 214 /*heads*/ 0, 215 /*start_write_precomp*/ {0, 0, 0}, 216 /*start_reduced_current*/ {0, 0, 0}, 217 /*step_rate*/ {0, 0}, 218 /*landing_zone_cylinder*/ {0, 0, 0}, 219 /*rpl*/ 0, 220 /*rotational_offset*/ 0, 221 /*reserved1*/ 0, 222 /*rotation_rate*/ {0, 0}, 223 /*reserved2*/ {0, 0} 224}; 225 226static struct scsi_caching_page caching_page_default = { 227 /*page_code*/SMS_CACHING_PAGE, 228 /*page_length*/sizeof(struct scsi_caching_page) - 2, 229 /*flags1*/ SCP_DISC | SCP_WCE, 230 /*ret_priority*/ 0, 231 /*disable_pf_transfer_len*/ {0xff, 0xff}, 232 /*min_prefetch*/ {0, 0}, 233 /*max_prefetch*/ {0xff, 0xff}, 234 /*max_pf_ceiling*/ {0xff, 0xff}, 235 /*flags2*/ 0, 236 /*cache_segments*/ 0, 237 /*cache_seg_size*/ {0, 0}, 238 /*reserved*/ 0, 239 /*non_cache_seg_size*/ {0, 0, 0} 240}; 241 242static struct scsi_caching_page caching_page_changeable = { 243 /*page_code*/SMS_CACHING_PAGE, 244 /*page_length*/sizeof(struct scsi_caching_page) - 2, 245 /*flags1*/ SCP_WCE | SCP_RCD, 246 /*ret_priority*/ 0, 247 /*disable_pf_transfer_len*/ {0, 0}, 248 /*min_prefetch*/ {0, 0}, 249 /*max_prefetch*/ {0, 0}, 250 /*max_pf_ceiling*/ {0, 0}, 251 /*flags2*/ 0, 252 /*cache_segments*/ 0, 253 /*cache_seg_size*/ {0, 0}, 254 /*reserved*/ 0, 255 /*non_cache_seg_size*/ {0, 0, 0} 256}; 257 258static struct scsi_control_page control_page_default = { 259 /*page_code*/SMS_CONTROL_MODE_PAGE, 260 /*page_length*/sizeof(struct scsi_control_page) - 2, 261 /*rlec*/0, 262 /*queue_flags*/SCP_QUEUE_ALG_RESTRICTED, 263 /*eca_and_aen*/0, 264 /*flags4*/SCP_TAS, 265 /*aen_holdoff_period*/{0, 0}, 266 /*busy_timeout_period*/{0, 0}, 267 /*extended_selftest_completion_time*/{0, 0} 268}; 269 270static struct scsi_control_page control_page_changeable = { 271 /*page_code*/SMS_CONTROL_MODE_PAGE, 272 /*page_length*/sizeof(struct scsi_control_page) - 2, 273 /*rlec*/SCP_DSENSE, 274 /*queue_flags*/SCP_QUEUE_ALG_MASK, 275 /*eca_and_aen*/SCP_SWP, 276 /*flags4*/0, 277 /*aen_holdoff_period*/{0, 0}, 278 /*busy_timeout_period*/{0, 0}, 279 /*extended_selftest_completion_time*/{0, 0} 280}; 281 282static struct scsi_info_exceptions_page ie_page_default = { 283 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 284 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 285 /*info_flags*/SIEP_FLAGS_DEXCPT, 286 /*mrie*/0, 287 /*interval_timer*/{0, 0, 0, 0}, 288 /*report_count*/{0, 0, 0, 0} 289}; 290 291static struct scsi_info_exceptions_page ie_page_changeable = { 292 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 293 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 294 /*info_flags*/0, 295 /*mrie*/0, 296 /*interval_timer*/{0, 0, 0, 0}, 297 /*report_count*/{0, 0, 0, 0} 298}; 299 300#define CTL_LBPM_LEN (sizeof(struct ctl_logical_block_provisioning_page) - 4) 301 302static struct ctl_logical_block_provisioning_page lbp_page_default = {{ 303 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 304 /*subpage_code*/0x02, 305 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 306 /*flags*/0, 307 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 308 /*descr*/{}}, 309 {{/*flags*/0, 310 /*resource*/0x01, 311 /*reserved*/{0, 0}, 312 /*count*/{0, 0, 0, 0}}, 313 {/*flags*/0, 314 /*resource*/0x02, 315 /*reserved*/{0, 0}, 316 /*count*/{0, 0, 0, 0}}, 317 {/*flags*/0, 318 /*resource*/0xf1, 319 /*reserved*/{0, 0}, 320 /*count*/{0, 0, 0, 0}}, 321 {/*flags*/0, 322 /*resource*/0xf2, 323 /*reserved*/{0, 0}, 324 /*count*/{0, 0, 0, 0}} 325 } 326}; 327 328static struct ctl_logical_block_provisioning_page lbp_page_changeable = {{ 329 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 330 /*subpage_code*/0x02, 331 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 332 /*flags*/0, 333 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 334 /*descr*/{}}, 335 {{/*flags*/0, 336 /*resource*/0, 337 /*reserved*/{0, 0}, 338 /*count*/{0, 0, 0, 0}}, 339 {/*flags*/0, 340 /*resource*/0, 341 /*reserved*/{0, 0}, 342 /*count*/{0, 0, 0, 0}}, 343 {/*flags*/0, 344 /*resource*/0, 345 /*reserved*/{0, 0}, 346 /*count*/{0, 0, 0, 0}}, 347 {/*flags*/0, 348 /*resource*/0, 349 /*reserved*/{0, 0}, 350 /*count*/{0, 0, 0, 0}} 351 } 352}; 353 354/* 355 * XXX KDM move these into the softc. 356 */ 357static int rcv_sync_msg; 358static int persis_offset; 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((void *)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( 893 (void *)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( 922 (void *)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 struct ctl_io_pool *internal_pool, *emergency_pool, *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 mtx_init(&softc->pool_lock, "CTL pool mutex", NULL, MTX_DEF); 1053 softc->open_count = 0; 1054 1055 /* 1056 * Default to actually sending a SYNCHRONIZE CACHE command down to 1057 * the drive. 1058 */ 1059 softc->flags = CTL_FLAG_REAL_SYNC; 1060 1061 /* 1062 * In Copan's HA scheme, the "master" and "slave" roles are 1063 * figured out through the slot the controller is in. Although it 1064 * is an active/active system, someone has to be in charge. 1065 */ 1066 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1067 OID_AUTO, "ha_id", CTLFLAG_RDTUN, &softc->ha_id, 0, 1068 "HA head ID (0 - no HA)"); 1069 if (softc->ha_id == 0) { 1070 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1071 softc->is_single = 1; 1072 softc->port_offset = 0; 1073 } else 1074 softc->port_offset = (softc->ha_id - 1) * CTL_MAX_PORTS; 1075 persis_offset = softc->port_offset * CTL_MAX_INIT_PER_PORT; 1076 1077 /* 1078 * XXX KDM need to figure out where we want to get our target ID 1079 * and WWID. Is it different on each port? 1080 */ 1081 softc->target.id = 0; 1082 softc->target.wwid[0] = 0x12345678; 1083 softc->target.wwid[1] = 0x87654321; 1084 STAILQ_INIT(&softc->lun_list); 1085 STAILQ_INIT(&softc->pending_lun_queue); 1086 STAILQ_INIT(&softc->fe_list); 1087 STAILQ_INIT(&softc->port_list); 1088 STAILQ_INIT(&softc->be_list); 1089 STAILQ_INIT(&softc->io_pools); 1090 ctl_tpc_init(softc); 1091 1092 if (ctl_pool_create(softc, CTL_POOL_INTERNAL, CTL_POOL_ENTRIES_INTERNAL, 1093 &internal_pool)!= 0){ 1094 printf("ctl: can't allocate %d entry internal pool, " 1095 "exiting\n", CTL_POOL_ENTRIES_INTERNAL); 1096 return (ENOMEM); 1097 } 1098 1099 if (ctl_pool_create(softc, CTL_POOL_EMERGENCY, 1100 CTL_POOL_ENTRIES_EMERGENCY, &emergency_pool) != 0) { 1101 printf("ctl: can't allocate %d entry emergency pool, " 1102 "exiting\n", CTL_POOL_ENTRIES_EMERGENCY); 1103 ctl_pool_free(internal_pool); 1104 return (ENOMEM); 1105 } 1106 1107 if (ctl_pool_create(softc, CTL_POOL_4OTHERSC, CTL_POOL_ENTRIES_OTHER_SC, 1108 &other_pool) != 0) 1109 { 1110 printf("ctl: can't allocate %d entry other SC pool, " 1111 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1112 ctl_pool_free(internal_pool); 1113 ctl_pool_free(emergency_pool); 1114 return (ENOMEM); 1115 } 1116 1117 softc->internal_pool = internal_pool; 1118 softc->emergency_pool = emergency_pool; 1119 softc->othersc_pool = other_pool; 1120 1121 if (worker_threads <= 0) 1122 worker_threads = max(1, mp_ncpus / 4); 1123 if (worker_threads > CTL_MAX_THREADS) 1124 worker_threads = CTL_MAX_THREADS; 1125 1126 for (i = 0; i < worker_threads; i++) { 1127 struct ctl_thread *thr = &softc->threads[i]; 1128 1129 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1130 thr->ctl_softc = softc; 1131 STAILQ_INIT(&thr->incoming_queue); 1132 STAILQ_INIT(&thr->rtr_queue); 1133 STAILQ_INIT(&thr->done_queue); 1134 STAILQ_INIT(&thr->isc_queue); 1135 1136 error = kproc_kthread_add(ctl_work_thread, thr, 1137 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1138 if (error != 0) { 1139 printf("error creating CTL work thread!\n"); 1140 ctl_pool_free(internal_pool); 1141 ctl_pool_free(emergency_pool); 1142 ctl_pool_free(other_pool); 1143 return (error); 1144 } 1145 } 1146 error = kproc_kthread_add(ctl_lun_thread, softc, 1147 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1148 if (error != 0) { 1149 printf("error creating CTL lun thread!\n"); 1150 ctl_pool_free(internal_pool); 1151 ctl_pool_free(emergency_pool); 1152 ctl_pool_free(other_pool); 1153 return (error); 1154 } 1155 error = kproc_kthread_add(ctl_thresh_thread, softc, 1156 &softc->ctl_proc, NULL, 0, 0, "ctl", "thresh"); 1157 if (error != 0) { 1158 printf("error creating CTL threshold thread!\n"); 1159 ctl_pool_free(internal_pool); 1160 ctl_pool_free(emergency_pool); 1161 ctl_pool_free(other_pool); 1162 return (error); 1163 } 1164 if (bootverbose) 1165 printf("ctl: CAM Target Layer loaded\n"); 1166 1167 /* 1168 * Initialize the ioctl front end. 1169 */ 1170 ctl_frontend_register(&ioctl_frontend); 1171 port = &softc->ioctl_info.port; 1172 port->frontend = &ioctl_frontend; 1173 sprintf(softc->ioctl_info.port_name, "ioctl"); 1174 port->port_type = CTL_PORT_IOCTL; 1175 port->num_requested_ctl_io = 100; 1176 port->port_name = softc->ioctl_info.port_name; 1177 port->port_online = ctl_ioctl_online; 1178 port->port_offline = ctl_ioctl_offline; 1179 port->onoff_arg = &softc->ioctl_info; 1180 port->lun_enable = ctl_ioctl_lun_enable; 1181 port->lun_disable = ctl_ioctl_lun_disable; 1182 port->targ_lun_arg = &softc->ioctl_info; 1183 port->fe_datamove = ctl_ioctl_datamove; 1184 port->fe_done = ctl_ioctl_done; 1185 port->max_targets = 15; 1186 port->max_target_id = 15; 1187 1188 if (ctl_port_register(&softc->ioctl_info.port) != 0) { 1189 printf("ctl: ioctl front end registration failed, will " 1190 "continue anyway\n"); 1191 } 1192 1193 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1194 OID_AUTO, "ha_state", CTLTYPE_INT | CTLFLAG_RWTUN, 1195 softc, 0, ctl_ha_state_sysctl, "I", "HA state for this head"); 1196 1197#ifdef CTL_IO_DELAY 1198 if (sizeof(struct callout) > CTL_TIMER_BYTES) { 1199 printf("sizeof(struct callout) %zd > CTL_TIMER_BYTES %zd\n", 1200 sizeof(struct callout), CTL_TIMER_BYTES); 1201 return (EINVAL); 1202 } 1203#endif /* CTL_IO_DELAY */ 1204 1205 return (0); 1206} 1207 1208void 1209ctl_shutdown(void) 1210{ 1211 struct ctl_softc *softc; 1212 struct ctl_lun *lun, *next_lun; 1213 struct ctl_io_pool *pool; 1214 1215 softc = (struct ctl_softc *)control_softc; 1216 1217 if (ctl_port_deregister(&softc->ioctl_info.port) != 0) 1218 printf("ctl: ioctl front end deregistration failed\n"); 1219 1220 mtx_lock(&softc->ctl_lock); 1221 1222 /* 1223 * Free up each LUN. 1224 */ 1225 for (lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; lun = next_lun){ 1226 next_lun = STAILQ_NEXT(lun, links); 1227 ctl_free_lun(lun); 1228 } 1229 1230 mtx_unlock(&softc->ctl_lock); 1231 1232 ctl_frontend_deregister(&ioctl_frontend); 1233 1234 /* 1235 * This will rip the rug out from under any FETDs or anyone else 1236 * that has a pool allocated. Since we increment our module 1237 * refcount any time someone outside the main CTL module allocates 1238 * a pool, we shouldn't have any problems here. The user won't be 1239 * able to unload the CTL module until client modules have 1240 * successfully unloaded. 1241 */ 1242 while ((pool = STAILQ_FIRST(&softc->io_pools)) != NULL) 1243 ctl_pool_free(pool); 1244 1245#if 0 1246 ctl_shutdown_thread(softc->work_thread); 1247 mtx_destroy(&softc->queue_lock); 1248#endif 1249 1250 ctl_tpc_shutdown(softc); 1251 mtx_destroy(&softc->pool_lock); 1252 mtx_destroy(&softc->ctl_lock); 1253 1254 destroy_dev(softc->dev); 1255 1256 sysctl_ctx_free(&softc->sysctl_ctx); 1257 1258 free(control_softc, M_DEVBUF); 1259 control_softc = NULL; 1260 1261 if (bootverbose) 1262 printf("ctl: CAM Target Layer unloaded\n"); 1263} 1264 1265static int 1266ctl_module_event_handler(module_t mod, int what, void *arg) 1267{ 1268 1269 switch (what) { 1270 case MOD_LOAD: 1271 return (ctl_init()); 1272 case MOD_UNLOAD: 1273 return (EBUSY); 1274 default: 1275 return (EOPNOTSUPP); 1276 } 1277} 1278 1279/* 1280 * XXX KDM should we do some access checks here? Bump a reference count to 1281 * prevent a CTL module from being unloaded while someone has it open? 1282 */ 1283static int 1284ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1285{ 1286 return (0); 1287} 1288 1289static int 1290ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1291{ 1292 return (0); 1293} 1294 1295int 1296ctl_port_enable(ctl_port_type port_type) 1297{ 1298 struct ctl_softc *softc = control_softc; 1299 struct ctl_port *port; 1300 1301 if (softc->is_single == 0) { 1302 union ctl_ha_msg msg_info; 1303 int isc_retval; 1304 1305#if 0 1306 printf("%s: HA mode, synchronizing frontend enable\n", 1307 __func__); 1308#endif 1309 msg_info.hdr.msg_type = CTL_MSG_SYNC_FE; 1310 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1311 sizeof(msg_info), 1 )) > CTL_HA_STATUS_SUCCESS) { 1312 printf("Sync msg send error retval %d\n", isc_retval); 1313 } 1314 if (!rcv_sync_msg) { 1315 isc_retval=ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 1316 sizeof(msg_info), 1); 1317 } 1318#if 0 1319 printf("CTL:Frontend Enable\n"); 1320 } else { 1321 printf("%s: single mode, skipping frontend synchronization\n", 1322 __func__); 1323#endif 1324 } 1325 1326 STAILQ_FOREACH(port, &softc->port_list, links) { 1327 if (port_type & port->port_type) 1328 { 1329#if 0 1330 printf("port %d\n", port->targ_port); 1331#endif 1332 ctl_port_online(port); 1333 } 1334 } 1335 1336 return (0); 1337} 1338 1339int 1340ctl_port_disable(ctl_port_type port_type) 1341{ 1342 struct ctl_softc *softc; 1343 struct ctl_port *port; 1344 1345 softc = control_softc; 1346 1347 STAILQ_FOREACH(port, &softc->port_list, links) { 1348 if (port_type & port->port_type) 1349 ctl_port_offline(port); 1350 } 1351 1352 return (0); 1353} 1354 1355/* 1356 * Returns 0 for success, 1 for failure. 1357 * Currently the only failure mode is if there aren't enough entries 1358 * allocated. So, in case of a failure, look at num_entries_dropped, 1359 * reallocate and try again. 1360 */ 1361int 1362ctl_port_list(struct ctl_port_entry *entries, int num_entries_alloced, 1363 int *num_entries_filled, int *num_entries_dropped, 1364 ctl_port_type port_type, int no_virtual) 1365{ 1366 struct ctl_softc *softc; 1367 struct ctl_port *port; 1368 int entries_dropped, entries_filled; 1369 int retval; 1370 int i; 1371 1372 softc = control_softc; 1373 1374 retval = 0; 1375 entries_filled = 0; 1376 entries_dropped = 0; 1377 1378 i = 0; 1379 mtx_lock(&softc->ctl_lock); 1380 STAILQ_FOREACH(port, &softc->port_list, links) { 1381 struct ctl_port_entry *entry; 1382 1383 if ((port->port_type & port_type) == 0) 1384 continue; 1385 1386 if ((no_virtual != 0) 1387 && (port->virtual_port != 0)) 1388 continue; 1389 1390 if (entries_filled >= num_entries_alloced) { 1391 entries_dropped++; 1392 continue; 1393 } 1394 entry = &entries[i]; 1395 1396 entry->port_type = port->port_type; 1397 strlcpy(entry->port_name, port->port_name, 1398 sizeof(entry->port_name)); 1399 entry->physical_port = port->physical_port; 1400 entry->virtual_port = port->virtual_port; 1401 entry->wwnn = port->wwnn; 1402 entry->wwpn = port->wwpn; 1403 1404 i++; 1405 entries_filled++; 1406 } 1407 1408 mtx_unlock(&softc->ctl_lock); 1409 1410 if (entries_dropped > 0) 1411 retval = 1; 1412 1413 *num_entries_dropped = entries_dropped; 1414 *num_entries_filled = entries_filled; 1415 1416 return (retval); 1417} 1418 1419static void 1420ctl_ioctl_online(void *arg) 1421{ 1422 struct ctl_ioctl_info *ioctl_info; 1423 1424 ioctl_info = (struct ctl_ioctl_info *)arg; 1425 1426 ioctl_info->flags |= CTL_IOCTL_FLAG_ENABLED; 1427} 1428 1429static void 1430ctl_ioctl_offline(void *arg) 1431{ 1432 struct ctl_ioctl_info *ioctl_info; 1433 1434 ioctl_info = (struct ctl_ioctl_info *)arg; 1435 1436 ioctl_info->flags &= ~CTL_IOCTL_FLAG_ENABLED; 1437} 1438 1439/* 1440 * Remove an initiator by port number and initiator ID. 1441 * Returns 0 for success, -1 for failure. 1442 */ 1443int 1444ctl_remove_initiator(struct ctl_port *port, int iid) 1445{ 1446 struct ctl_softc *softc = control_softc; 1447 1448 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1449 1450 if (iid > CTL_MAX_INIT_PER_PORT) { 1451 printf("%s: initiator ID %u > maximun %u!\n", 1452 __func__, iid, CTL_MAX_INIT_PER_PORT); 1453 return (-1); 1454 } 1455 1456 mtx_lock(&softc->ctl_lock); 1457 port->wwpn_iid[iid].in_use--; 1458 port->wwpn_iid[iid].last_use = time_uptime; 1459 mtx_unlock(&softc->ctl_lock); 1460 1461 return (0); 1462} 1463 1464/* 1465 * Add an initiator to the initiator map. 1466 * Returns iid for success, < 0 for failure. 1467 */ 1468int 1469ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 1470{ 1471 struct ctl_softc *softc = control_softc; 1472 time_t best_time; 1473 int i, best; 1474 1475 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1476 1477 if (iid >= CTL_MAX_INIT_PER_PORT) { 1478 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 1479 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 1480 free(name, M_CTL); 1481 return (-1); 1482 } 1483 1484 mtx_lock(&softc->ctl_lock); 1485 1486 if (iid < 0 && (wwpn != 0 || name != NULL)) { 1487 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1488 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 1489 iid = i; 1490 break; 1491 } 1492 if (name != NULL && port->wwpn_iid[i].name != NULL && 1493 strcmp(name, port->wwpn_iid[i].name) == 0) { 1494 iid = i; 1495 break; 1496 } 1497 } 1498 } 1499 1500 if (iid < 0) { 1501 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1502 if (port->wwpn_iid[i].in_use == 0 && 1503 port->wwpn_iid[i].wwpn == 0 && 1504 port->wwpn_iid[i].name == NULL) { 1505 iid = i; 1506 break; 1507 } 1508 } 1509 } 1510 1511 if (iid < 0) { 1512 best = -1; 1513 best_time = INT32_MAX; 1514 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1515 if (port->wwpn_iid[i].in_use == 0) { 1516 if (port->wwpn_iid[i].last_use < best_time) { 1517 best = i; 1518 best_time = port->wwpn_iid[i].last_use; 1519 } 1520 } 1521 } 1522 iid = best; 1523 } 1524 1525 if (iid < 0) { 1526 mtx_unlock(&softc->ctl_lock); 1527 free(name, M_CTL); 1528 return (-2); 1529 } 1530 1531 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 1532 /* 1533 * This is not an error yet. 1534 */ 1535 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 1536#if 0 1537 printf("%s: port %d iid %u WWPN %#jx arrived" 1538 " again\n", __func__, port->targ_port, 1539 iid, (uintmax_t)wwpn); 1540#endif 1541 goto take; 1542 } 1543 if (name != NULL && port->wwpn_iid[iid].name != NULL && 1544 strcmp(name, port->wwpn_iid[iid].name) == 0) { 1545#if 0 1546 printf("%s: port %d iid %u name '%s' arrived" 1547 " again\n", __func__, port->targ_port, 1548 iid, name); 1549#endif 1550 goto take; 1551 } 1552 1553 /* 1554 * This is an error, but what do we do about it? The 1555 * driver is telling us we have a new WWPN for this 1556 * initiator ID, so we pretty much need to use it. 1557 */ 1558 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 1559 " but WWPN %#jx '%s' is still at that address\n", 1560 __func__, port->targ_port, iid, wwpn, name, 1561 (uintmax_t)port->wwpn_iid[iid].wwpn, 1562 port->wwpn_iid[iid].name); 1563 1564 /* 1565 * XXX KDM clear have_ca and ua_pending on each LUN for 1566 * this initiator. 1567 */ 1568 } 1569take: 1570 free(port->wwpn_iid[iid].name, M_CTL); 1571 port->wwpn_iid[iid].name = name; 1572 port->wwpn_iid[iid].wwpn = wwpn; 1573 port->wwpn_iid[iid].in_use++; 1574 mtx_unlock(&softc->ctl_lock); 1575 1576 return (iid); 1577} 1578 1579static int 1580ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 1581{ 1582 int len; 1583 1584 switch (port->port_type) { 1585 case CTL_PORT_FC: 1586 { 1587 struct scsi_transportid_fcp *id = 1588 (struct scsi_transportid_fcp *)buf; 1589 if (port->wwpn_iid[iid].wwpn == 0) 1590 return (0); 1591 memset(id, 0, sizeof(*id)); 1592 id->format_protocol = SCSI_PROTO_FC; 1593 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 1594 return (sizeof(*id)); 1595 } 1596 case CTL_PORT_ISCSI: 1597 { 1598 struct scsi_transportid_iscsi_port *id = 1599 (struct scsi_transportid_iscsi_port *)buf; 1600 if (port->wwpn_iid[iid].name == NULL) 1601 return (0); 1602 memset(id, 0, 256); 1603 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 1604 SCSI_PROTO_ISCSI; 1605 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 1606 len = roundup2(min(len, 252), 4); 1607 scsi_ulto2b(len, id->additional_length); 1608 return (sizeof(*id) + len); 1609 } 1610 case CTL_PORT_SAS: 1611 { 1612 struct scsi_transportid_sas *id = 1613 (struct scsi_transportid_sas *)buf; 1614 if (port->wwpn_iid[iid].wwpn == 0) 1615 return (0); 1616 memset(id, 0, sizeof(*id)); 1617 id->format_protocol = SCSI_PROTO_SAS; 1618 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 1619 return (sizeof(*id)); 1620 } 1621 default: 1622 { 1623 struct scsi_transportid_spi *id = 1624 (struct scsi_transportid_spi *)buf; 1625 memset(id, 0, sizeof(*id)); 1626 id->format_protocol = SCSI_PROTO_SPI; 1627 scsi_ulto2b(iid, id->scsi_addr); 1628 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 1629 return (sizeof(*id)); 1630 } 1631 } 1632} 1633 1634static int 1635ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id) 1636{ 1637 return (0); 1638} 1639 1640static int 1641ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id) 1642{ 1643 return (0); 1644} 1645 1646/* 1647 * Data movement routine for the CTL ioctl frontend port. 1648 */ 1649static int 1650ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio) 1651{ 1652 struct ctl_sg_entry *ext_sglist, *kern_sglist; 1653 struct ctl_sg_entry ext_entry, kern_entry; 1654 int ext_sglen, ext_sg_entries, kern_sg_entries; 1655 int ext_sg_start, ext_offset; 1656 int len_to_copy, len_copied; 1657 int kern_watermark, ext_watermark; 1658 int ext_sglist_malloced; 1659 int i, j; 1660 1661 ext_sglist_malloced = 0; 1662 ext_sg_start = 0; 1663 ext_offset = 0; 1664 1665 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove\n")); 1666 1667 /* 1668 * If this flag is set, fake the data transfer. 1669 */ 1670 if (ctsio->io_hdr.flags & CTL_FLAG_NO_DATAMOVE) { 1671 ctsio->ext_data_filled = ctsio->ext_data_len; 1672 goto bailout; 1673 } 1674 1675 /* 1676 * To simplify things here, if we have a single buffer, stick it in 1677 * a S/G entry and just make it a single entry S/G list. 1678 */ 1679 if (ctsio->io_hdr.flags & CTL_FLAG_EDPTR_SGLIST) { 1680 int len_seen; 1681 1682 ext_sglen = ctsio->ext_sg_entries * sizeof(*ext_sglist); 1683 1684 ext_sglist = (struct ctl_sg_entry *)malloc(ext_sglen, M_CTL, 1685 M_WAITOK); 1686 ext_sglist_malloced = 1; 1687 if (copyin(ctsio->ext_data_ptr, ext_sglist, 1688 ext_sglen) != 0) { 1689 ctl_set_internal_failure(ctsio, 1690 /*sks_valid*/ 0, 1691 /*retry_count*/ 0); 1692 goto bailout; 1693 } 1694 ext_sg_entries = ctsio->ext_sg_entries; 1695 len_seen = 0; 1696 for (i = 0; i < ext_sg_entries; i++) { 1697 if ((len_seen + ext_sglist[i].len) >= 1698 ctsio->ext_data_filled) { 1699 ext_sg_start = i; 1700 ext_offset = ctsio->ext_data_filled - len_seen; 1701 break; 1702 } 1703 len_seen += ext_sglist[i].len; 1704 } 1705 } else { 1706 ext_sglist = &ext_entry; 1707 ext_sglist->addr = ctsio->ext_data_ptr; 1708 ext_sglist->len = ctsio->ext_data_len; 1709 ext_sg_entries = 1; 1710 ext_sg_start = 0; 1711 ext_offset = ctsio->ext_data_filled; 1712 } 1713 1714 if (ctsio->kern_sg_entries > 0) { 1715 kern_sglist = (struct ctl_sg_entry *)ctsio->kern_data_ptr; 1716 kern_sg_entries = ctsio->kern_sg_entries; 1717 } else { 1718 kern_sglist = &kern_entry; 1719 kern_sglist->addr = ctsio->kern_data_ptr; 1720 kern_sglist->len = ctsio->kern_data_len; 1721 kern_sg_entries = 1; 1722 } 1723 1724 1725 kern_watermark = 0; 1726 ext_watermark = ext_offset; 1727 len_copied = 0; 1728 for (i = ext_sg_start, j = 0; 1729 i < ext_sg_entries && j < kern_sg_entries;) { 1730 uint8_t *ext_ptr, *kern_ptr; 1731 1732 len_to_copy = ctl_min(ext_sglist[i].len - ext_watermark, 1733 kern_sglist[j].len - kern_watermark); 1734 1735 ext_ptr = (uint8_t *)ext_sglist[i].addr; 1736 ext_ptr = ext_ptr + ext_watermark; 1737 if (ctsio->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 1738 /* 1739 * XXX KDM fix this! 1740 */ 1741 panic("need to implement bus address support"); 1742#if 0 1743 kern_ptr = bus_to_virt(kern_sglist[j].addr); 1744#endif 1745 } else 1746 kern_ptr = (uint8_t *)kern_sglist[j].addr; 1747 kern_ptr = kern_ptr + kern_watermark; 1748 1749 kern_watermark += len_to_copy; 1750 ext_watermark += len_to_copy; 1751 1752 if ((ctsio->io_hdr.flags & CTL_FLAG_DATA_MASK) == 1753 CTL_FLAG_DATA_IN) { 1754 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1755 "bytes to user\n", len_to_copy)); 1756 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1757 "to %p\n", kern_ptr, ext_ptr)); 1758 if (copyout(kern_ptr, ext_ptr, len_to_copy) != 0) { 1759 ctl_set_internal_failure(ctsio, 1760 /*sks_valid*/ 0, 1761 /*retry_count*/ 0); 1762 goto bailout; 1763 } 1764 } else { 1765 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1766 "bytes from user\n", len_to_copy)); 1767 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1768 "to %p\n", ext_ptr, kern_ptr)); 1769 if (copyin(ext_ptr, kern_ptr, len_to_copy)!= 0){ 1770 ctl_set_internal_failure(ctsio, 1771 /*sks_valid*/ 0, 1772 /*retry_count*/0); 1773 goto bailout; 1774 } 1775 } 1776 1777 len_copied += len_to_copy; 1778 1779 if (ext_sglist[i].len == ext_watermark) { 1780 i++; 1781 ext_watermark = 0; 1782 } 1783 1784 if (kern_sglist[j].len == kern_watermark) { 1785 j++; 1786 kern_watermark = 0; 1787 } 1788 } 1789 1790 ctsio->ext_data_filled += len_copied; 1791 1792 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_sg_entries: %d, " 1793 "kern_sg_entries: %d\n", ext_sg_entries, 1794 kern_sg_entries)); 1795 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_data_len = %d, " 1796 "kern_data_len = %d\n", ctsio->ext_data_len, 1797 ctsio->kern_data_len)); 1798 1799 1800 /* XXX KDM set residual?? */ 1801bailout: 1802 1803 if (ext_sglist_malloced != 0) 1804 free(ext_sglist, M_CTL); 1805 1806 return (CTL_RETVAL_COMPLETE); 1807} 1808 1809/* 1810 * Serialize a command that went down the "wrong" side, and so was sent to 1811 * this controller for execution. The logic is a little different than the 1812 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 1813 * sent back to the other side, but in the success case, we execute the 1814 * command on this side (XFER mode) or tell the other side to execute it 1815 * (SER_ONLY mode). 1816 */ 1817static int 1818ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 1819{ 1820 struct ctl_softc *ctl_softc; 1821 union ctl_ha_msg msg_info; 1822 struct ctl_lun *lun; 1823 int retval = 0; 1824 uint32_t targ_lun; 1825 1826 ctl_softc = control_softc; 1827 1828 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 1829 lun = ctl_softc->ctl_luns[targ_lun]; 1830 if (lun==NULL) 1831 { 1832 /* 1833 * Why isn't LUN defined? The other side wouldn't 1834 * send a cmd if the LUN is undefined. 1835 */ 1836 printf("%s: Bad JUJU!, LUN is NULL!\n", __func__); 1837 1838 /* "Logical unit not supported" */ 1839 ctl_set_sense_data(&msg_info.scsi.sense_data, 1840 lun, 1841 /*sense_format*/SSD_TYPE_NONE, 1842 /*current_error*/ 1, 1843 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1844 /*asc*/ 0x25, 1845 /*ascq*/ 0x00, 1846 SSD_ELEM_NONE); 1847 1848 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1849 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1850 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1851 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1852 msg_info.hdr.serializing_sc = NULL; 1853 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1854 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1855 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1856 } 1857 return(1); 1858 1859 } 1860 1861 mtx_lock(&lun->lun_lock); 1862 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1863 1864 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 1865 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 1866 ooa_links))) { 1867 case CTL_ACTION_BLOCK: 1868 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 1869 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 1870 blocked_links); 1871 break; 1872 case CTL_ACTION_PASS: 1873 case CTL_ACTION_SKIP: 1874 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 1875 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 1876 ctl_enqueue_rtr((union ctl_io *)ctsio); 1877 } else { 1878 1879 /* send msg back to other side */ 1880 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1881 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 1882 msg_info.hdr.msg_type = CTL_MSG_R2R; 1883#if 0 1884 printf("2. pOrig %x\n", (int)msg_info.hdr.original_sc); 1885#endif 1886 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1887 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1888 } 1889 } 1890 break; 1891 case CTL_ACTION_OVERLAP: 1892 /* OVERLAPPED COMMANDS ATTEMPTED */ 1893 ctl_set_sense_data(&msg_info.scsi.sense_data, 1894 lun, 1895 /*sense_format*/SSD_TYPE_NONE, 1896 /*current_error*/ 1, 1897 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1898 /*asc*/ 0x4E, 1899 /*ascq*/ 0x00, 1900 SSD_ELEM_NONE); 1901 1902 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1903 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1904 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1905 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1906 msg_info.hdr.serializing_sc = NULL; 1907 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1908#if 0 1909 printf("BAD JUJU:Major Bummer Overlap\n"); 1910#endif 1911 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1912 retval = 1; 1913 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1914 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1915 } 1916 break; 1917 case CTL_ACTION_OVERLAP_TAG: 1918 /* TAGGED OVERLAPPED COMMANDS (NN = QUEUE TAG) */ 1919 ctl_set_sense_data(&msg_info.scsi.sense_data, 1920 lun, 1921 /*sense_format*/SSD_TYPE_NONE, 1922 /*current_error*/ 1, 1923 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1924 /*asc*/ 0x4D, 1925 /*ascq*/ ctsio->tag_num & 0xff, 1926 SSD_ELEM_NONE); 1927 1928 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1929 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1930 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1931 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1932 msg_info.hdr.serializing_sc = NULL; 1933 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1934#if 0 1935 printf("BAD JUJU:Major Bummer Overlap Tag\n"); 1936#endif 1937 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1938 retval = 1; 1939 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1940 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1941 } 1942 break; 1943 case CTL_ACTION_ERROR: 1944 default: 1945 /* "Internal target failure" */ 1946 ctl_set_sense_data(&msg_info.scsi.sense_data, 1947 lun, 1948 /*sense_format*/SSD_TYPE_NONE, 1949 /*current_error*/ 1, 1950 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 1951 /*asc*/ 0x44, 1952 /*ascq*/ 0x00, 1953 SSD_ELEM_NONE); 1954 1955 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1956 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1957 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1958 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1959 msg_info.hdr.serializing_sc = NULL; 1960 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1961#if 0 1962 printf("BAD JUJU:Major Bummer HW Error\n"); 1963#endif 1964 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1965 retval = 1; 1966 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1967 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1968 } 1969 break; 1970 } 1971 mtx_unlock(&lun->lun_lock); 1972 return (retval); 1973} 1974 1975static int 1976ctl_ioctl_submit_wait(union ctl_io *io) 1977{ 1978 struct ctl_fe_ioctl_params params; 1979 ctl_fe_ioctl_state last_state; 1980 int done, retval; 1981 1982 retval = 0; 1983 1984 bzero(¶ms, sizeof(params)); 1985 1986 mtx_init(¶ms.ioctl_mtx, "ctliocmtx", NULL, MTX_DEF); 1987 cv_init(¶ms.sem, "ctlioccv"); 1988 params.state = CTL_IOCTL_INPROG; 1989 last_state = params.state; 1990 1991 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = ¶ms; 1992 1993 CTL_DEBUG_PRINT(("ctl_ioctl_submit_wait\n")); 1994 1995 /* This shouldn't happen */ 1996 if ((retval = ctl_queue(io)) != CTL_RETVAL_COMPLETE) 1997 return (retval); 1998 1999 done = 0; 2000 2001 do { 2002 mtx_lock(¶ms.ioctl_mtx); 2003 /* 2004 * Check the state here, and don't sleep if the state has 2005 * already changed (i.e. wakeup has already occured, but we 2006 * weren't waiting yet). 2007 */ 2008 if (params.state == last_state) { 2009 /* XXX KDM cv_wait_sig instead? */ 2010 cv_wait(¶ms.sem, ¶ms.ioctl_mtx); 2011 } 2012 last_state = params.state; 2013 2014 switch (params.state) { 2015 case CTL_IOCTL_INPROG: 2016 /* Why did we wake up? */ 2017 /* XXX KDM error here? */ 2018 mtx_unlock(¶ms.ioctl_mtx); 2019 break; 2020 case CTL_IOCTL_DATAMOVE: 2021 CTL_DEBUG_PRINT(("got CTL_IOCTL_DATAMOVE\n")); 2022 2023 /* 2024 * change last_state back to INPROG to avoid 2025 * deadlock on subsequent data moves. 2026 */ 2027 params.state = last_state = CTL_IOCTL_INPROG; 2028 2029 mtx_unlock(¶ms.ioctl_mtx); 2030 ctl_ioctl_do_datamove(&io->scsiio); 2031 /* 2032 * Note that in some cases, most notably writes, 2033 * this will queue the I/O and call us back later. 2034 * In other cases, generally reads, this routine 2035 * will immediately call back and wake us up, 2036 * probably using our own context. 2037 */ 2038 io->scsiio.be_move_done(io); 2039 break; 2040 case CTL_IOCTL_DONE: 2041 mtx_unlock(¶ms.ioctl_mtx); 2042 CTL_DEBUG_PRINT(("got CTL_IOCTL_DONE\n")); 2043 done = 1; 2044 break; 2045 default: 2046 mtx_unlock(¶ms.ioctl_mtx); 2047 /* XXX KDM error here? */ 2048 break; 2049 } 2050 } while (done == 0); 2051 2052 mtx_destroy(¶ms.ioctl_mtx); 2053 cv_destroy(¶ms.sem); 2054 2055 return (CTL_RETVAL_COMPLETE); 2056} 2057 2058static void 2059ctl_ioctl_datamove(union ctl_io *io) 2060{ 2061 struct ctl_fe_ioctl_params *params; 2062 2063 params = (struct ctl_fe_ioctl_params *) 2064 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 2065 2066 mtx_lock(¶ms->ioctl_mtx); 2067 params->state = CTL_IOCTL_DATAMOVE; 2068 cv_broadcast(¶ms->sem); 2069 mtx_unlock(¶ms->ioctl_mtx); 2070} 2071 2072static void 2073ctl_ioctl_done(union ctl_io *io) 2074{ 2075 struct ctl_fe_ioctl_params *params; 2076 2077 params = (struct ctl_fe_ioctl_params *) 2078 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 2079 2080 mtx_lock(¶ms->ioctl_mtx); 2081 params->state = CTL_IOCTL_DONE; 2082 cv_broadcast(¶ms->sem); 2083 mtx_unlock(¶ms->ioctl_mtx); 2084} 2085 2086static void 2087ctl_ioctl_hard_startstop_callback(void *arg, struct cfi_metatask *metatask) 2088{ 2089 struct ctl_fe_ioctl_startstop_info *sd_info; 2090 2091 sd_info = (struct ctl_fe_ioctl_startstop_info *)arg; 2092 2093 sd_info->hs_info.status = metatask->status; 2094 sd_info->hs_info.total_luns = metatask->taskinfo.startstop.total_luns; 2095 sd_info->hs_info.luns_complete = 2096 metatask->taskinfo.startstop.luns_complete; 2097 sd_info->hs_info.luns_failed = metatask->taskinfo.startstop.luns_failed; 2098 2099 cv_broadcast(&sd_info->sem); 2100} 2101 2102static void 2103ctl_ioctl_bbrread_callback(void *arg, struct cfi_metatask *metatask) 2104{ 2105 struct ctl_fe_ioctl_bbrread_info *fe_bbr_info; 2106 2107 fe_bbr_info = (struct ctl_fe_ioctl_bbrread_info *)arg; 2108 2109 mtx_lock(fe_bbr_info->lock); 2110 fe_bbr_info->bbr_info->status = metatask->status; 2111 fe_bbr_info->bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2112 fe_bbr_info->wakeup_done = 1; 2113 mtx_unlock(fe_bbr_info->lock); 2114 2115 cv_broadcast(&fe_bbr_info->sem); 2116} 2117 2118/* 2119 * Returns 0 for success, errno for failure. 2120 */ 2121static int 2122ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2123 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2124{ 2125 union ctl_io *io; 2126 int retval; 2127 2128 retval = 0; 2129 2130 mtx_lock(&lun->lun_lock); 2131 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2132 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2133 ooa_links)) { 2134 struct ctl_ooa_entry *entry; 2135 2136 /* 2137 * If we've got more than we can fit, just count the 2138 * remaining entries. 2139 */ 2140 if (*cur_fill_num >= ooa_hdr->alloc_num) 2141 continue; 2142 2143 entry = &kern_entries[*cur_fill_num]; 2144 2145 entry->tag_num = io->scsiio.tag_num; 2146 entry->lun_num = lun->lun; 2147#ifdef CTL_TIME_IO 2148 entry->start_bt = io->io_hdr.start_bt; 2149#endif 2150 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2151 entry->cdb_len = io->scsiio.cdb_len; 2152 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2153 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2154 2155 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2156 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2157 2158 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2159 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2160 2161 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2162 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2163 2164 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2165 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2166 } 2167 mtx_unlock(&lun->lun_lock); 2168 2169 return (retval); 2170} 2171 2172static void * 2173ctl_copyin_alloc(void *user_addr, int len, char *error_str, 2174 size_t error_str_len) 2175{ 2176 void *kptr; 2177 2178 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2179 2180 if (copyin(user_addr, kptr, len) != 0) { 2181 snprintf(error_str, error_str_len, "Error copying %d bytes " 2182 "from user address %p to kernel address %p", len, 2183 user_addr, kptr); 2184 free(kptr, M_CTL); 2185 return (NULL); 2186 } 2187 2188 return (kptr); 2189} 2190 2191static void 2192ctl_free_args(int num_args, struct ctl_be_arg *args) 2193{ 2194 int i; 2195 2196 if (args == NULL) 2197 return; 2198 2199 for (i = 0; i < num_args; i++) { 2200 free(args[i].kname, M_CTL); 2201 free(args[i].kvalue, M_CTL); 2202 } 2203 2204 free(args, M_CTL); 2205} 2206 2207static struct ctl_be_arg * 2208ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2209 char *error_str, size_t error_str_len) 2210{ 2211 struct ctl_be_arg *args; 2212 int i; 2213 2214 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2215 error_str, error_str_len); 2216 2217 if (args == NULL) 2218 goto bailout; 2219 2220 for (i = 0; i < num_args; i++) { 2221 args[i].kname = NULL; 2222 args[i].kvalue = NULL; 2223 } 2224 2225 for (i = 0; i < num_args; i++) { 2226 uint8_t *tmpptr; 2227 2228 args[i].kname = ctl_copyin_alloc(args[i].name, 2229 args[i].namelen, error_str, error_str_len); 2230 if (args[i].kname == NULL) 2231 goto bailout; 2232 2233 if (args[i].kname[args[i].namelen - 1] != '\0') { 2234 snprintf(error_str, error_str_len, "Argument %d " 2235 "name is not NUL-terminated", i); 2236 goto bailout; 2237 } 2238 2239 if (args[i].flags & CTL_BEARG_RD) { 2240 tmpptr = ctl_copyin_alloc(args[i].value, 2241 args[i].vallen, error_str, error_str_len); 2242 if (tmpptr == NULL) 2243 goto bailout; 2244 if ((args[i].flags & CTL_BEARG_ASCII) 2245 && (tmpptr[args[i].vallen - 1] != '\0')) { 2246 snprintf(error_str, error_str_len, "Argument " 2247 "%d value is not NUL-terminated", i); 2248 goto bailout; 2249 } 2250 args[i].kvalue = tmpptr; 2251 } else { 2252 args[i].kvalue = malloc(args[i].vallen, 2253 M_CTL, M_WAITOK | M_ZERO); 2254 } 2255 } 2256 2257 return (args); 2258bailout: 2259 2260 ctl_free_args(num_args, args); 2261 2262 return (NULL); 2263} 2264 2265static void 2266ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2267{ 2268 int i; 2269 2270 for (i = 0; i < num_args; i++) { 2271 if (args[i].flags & CTL_BEARG_WR) 2272 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2273 } 2274} 2275 2276/* 2277 * Escape characters that are illegal or not recommended in XML. 2278 */ 2279int 2280ctl_sbuf_printf_esc(struct sbuf *sb, char *str, int size) 2281{ 2282 char *end = str + size; 2283 int retval; 2284 2285 retval = 0; 2286 2287 for (; *str && str < end; str++) { 2288 switch (*str) { 2289 case '&': 2290 retval = sbuf_printf(sb, "&"); 2291 break; 2292 case '>': 2293 retval = sbuf_printf(sb, ">"); 2294 break; 2295 case '<': 2296 retval = sbuf_printf(sb, "<"); 2297 break; 2298 default: 2299 retval = sbuf_putc(sb, *str); 2300 break; 2301 } 2302 2303 if (retval != 0) 2304 break; 2305 2306 } 2307 2308 return (retval); 2309} 2310 2311static void 2312ctl_id_sbuf(struct ctl_devid *id, struct sbuf *sb) 2313{ 2314 struct scsi_vpd_id_descriptor *desc; 2315 int i; 2316 2317 if (id == NULL || id->len < 4) 2318 return; 2319 desc = (struct scsi_vpd_id_descriptor *)id->data; 2320 switch (desc->id_type & SVPD_ID_TYPE_MASK) { 2321 case SVPD_ID_TYPE_T10: 2322 sbuf_printf(sb, "t10."); 2323 break; 2324 case SVPD_ID_TYPE_EUI64: 2325 sbuf_printf(sb, "eui."); 2326 break; 2327 case SVPD_ID_TYPE_NAA: 2328 sbuf_printf(sb, "naa."); 2329 break; 2330 case SVPD_ID_TYPE_SCSI_NAME: 2331 break; 2332 } 2333 switch (desc->proto_codeset & SVPD_ID_CODESET_MASK) { 2334 case SVPD_ID_CODESET_BINARY: 2335 for (i = 0; i < desc->length; i++) 2336 sbuf_printf(sb, "%02x", desc->identifier[i]); 2337 break; 2338 case SVPD_ID_CODESET_ASCII: 2339 sbuf_printf(sb, "%.*s", (int)desc->length, 2340 (char *)desc->identifier); 2341 break; 2342 case SVPD_ID_CODESET_UTF8: 2343 sbuf_printf(sb, "%s", (char *)desc->identifier); 2344 break; 2345 } 2346} 2347 2348static int 2349ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2350 struct thread *td) 2351{ 2352 struct ctl_softc *softc; 2353 int retval; 2354 2355 softc = control_softc; 2356 2357 retval = 0; 2358 2359 switch (cmd) { 2360 case CTL_IO: { 2361 union ctl_io *io; 2362 void *pool_tmp; 2363 2364 /* 2365 * If we haven't been "enabled", don't allow any SCSI I/O 2366 * to this FETD. 2367 */ 2368 if ((softc->ioctl_info.flags & CTL_IOCTL_FLAG_ENABLED) == 0) { 2369 retval = EPERM; 2370 break; 2371 } 2372 2373 io = ctl_alloc_io(softc->ioctl_info.port.ctl_pool_ref); 2374 if (io == NULL) { 2375 printf("ctl_ioctl: can't allocate ctl_io!\n"); 2376 retval = ENOSPC; 2377 break; 2378 } 2379 2380 /* 2381 * Need to save the pool reference so it doesn't get 2382 * spammed by the user's ctl_io. 2383 */ 2384 pool_tmp = io->io_hdr.pool; 2385 2386 memcpy(io, (void *)addr, sizeof(*io)); 2387 2388 io->io_hdr.pool = pool_tmp; 2389 /* 2390 * No status yet, so make sure the status is set properly. 2391 */ 2392 io->io_hdr.status = CTL_STATUS_NONE; 2393 2394 /* 2395 * The user sets the initiator ID, target and LUN IDs. 2396 */ 2397 io->io_hdr.nexus.targ_port = softc->ioctl_info.port.targ_port; 2398 io->io_hdr.flags |= CTL_FLAG_USER_REQ; 2399 if ((io->io_hdr.io_type == CTL_IO_SCSI) 2400 && (io->scsiio.tag_type != CTL_TAG_UNTAGGED)) 2401 io->scsiio.tag_num = softc->ioctl_info.cur_tag_num++; 2402 2403 retval = ctl_ioctl_submit_wait(io); 2404 2405 if (retval != 0) { 2406 ctl_free_io(io); 2407 break; 2408 } 2409 2410 memcpy((void *)addr, io, sizeof(*io)); 2411 2412 /* return this to our pool */ 2413 ctl_free_io(io); 2414 2415 break; 2416 } 2417 case CTL_ENABLE_PORT: 2418 case CTL_DISABLE_PORT: 2419 case CTL_SET_PORT_WWNS: { 2420 struct ctl_port *port; 2421 struct ctl_port_entry *entry; 2422 2423 entry = (struct ctl_port_entry *)addr; 2424 2425 mtx_lock(&softc->ctl_lock); 2426 STAILQ_FOREACH(port, &softc->port_list, links) { 2427 int action, done; 2428 2429 action = 0; 2430 done = 0; 2431 2432 if ((entry->port_type == CTL_PORT_NONE) 2433 && (entry->targ_port == port->targ_port)) { 2434 /* 2435 * If the user only wants to enable or 2436 * disable or set WWNs on a specific port, 2437 * do the operation and we're done. 2438 */ 2439 action = 1; 2440 done = 1; 2441 } else if (entry->port_type & port->port_type) { 2442 /* 2443 * Compare the user's type mask with the 2444 * particular frontend type to see if we 2445 * have a match. 2446 */ 2447 action = 1; 2448 done = 0; 2449 2450 /* 2451 * Make sure the user isn't trying to set 2452 * WWNs on multiple ports at the same time. 2453 */ 2454 if (cmd == CTL_SET_PORT_WWNS) { 2455 printf("%s: Can't set WWNs on " 2456 "multiple ports\n", __func__); 2457 retval = EINVAL; 2458 break; 2459 } 2460 } 2461 if (action != 0) { 2462 /* 2463 * XXX KDM we have to drop the lock here, 2464 * because the online/offline operations 2465 * can potentially block. We need to 2466 * reference count the frontends so they 2467 * can't go away, 2468 */ 2469 mtx_unlock(&softc->ctl_lock); 2470 2471 if (cmd == CTL_ENABLE_PORT) { 2472 struct ctl_lun *lun; 2473 2474 STAILQ_FOREACH(lun, &softc->lun_list, 2475 links) { 2476 port->lun_enable(port->targ_lun_arg, 2477 lun->target, 2478 lun->lun); 2479 } 2480 2481 ctl_port_online(port); 2482 } else if (cmd == CTL_DISABLE_PORT) { 2483 struct ctl_lun *lun; 2484 2485 ctl_port_offline(port); 2486 2487 STAILQ_FOREACH(lun, &softc->lun_list, 2488 links) { 2489 port->lun_disable( 2490 port->targ_lun_arg, 2491 lun->target, 2492 lun->lun); 2493 } 2494 } 2495 2496 mtx_lock(&softc->ctl_lock); 2497 2498 if (cmd == CTL_SET_PORT_WWNS) 2499 ctl_port_set_wwns(port, 2500 (entry->flags & CTL_PORT_WWNN_VALID) ? 2501 1 : 0, entry->wwnn, 2502 (entry->flags & CTL_PORT_WWPN_VALID) ? 2503 1 : 0, entry->wwpn); 2504 } 2505 if (done != 0) 2506 break; 2507 } 2508 mtx_unlock(&softc->ctl_lock); 2509 break; 2510 } 2511 case CTL_GET_PORT_LIST: { 2512 struct ctl_port *port; 2513 struct ctl_port_list *list; 2514 int i; 2515 2516 list = (struct ctl_port_list *)addr; 2517 2518 if (list->alloc_len != (list->alloc_num * 2519 sizeof(struct ctl_port_entry))) { 2520 printf("%s: CTL_GET_PORT_LIST: alloc_len %u != " 2521 "alloc_num %u * sizeof(struct ctl_port_entry) " 2522 "%zu\n", __func__, list->alloc_len, 2523 list->alloc_num, sizeof(struct ctl_port_entry)); 2524 retval = EINVAL; 2525 break; 2526 } 2527 list->fill_len = 0; 2528 list->fill_num = 0; 2529 list->dropped_num = 0; 2530 i = 0; 2531 mtx_lock(&softc->ctl_lock); 2532 STAILQ_FOREACH(port, &softc->port_list, links) { 2533 struct ctl_port_entry entry, *list_entry; 2534 2535 if (list->fill_num >= list->alloc_num) { 2536 list->dropped_num++; 2537 continue; 2538 } 2539 2540 entry.port_type = port->port_type; 2541 strlcpy(entry.port_name, port->port_name, 2542 sizeof(entry.port_name)); 2543 entry.targ_port = port->targ_port; 2544 entry.physical_port = port->physical_port; 2545 entry.virtual_port = port->virtual_port; 2546 entry.wwnn = port->wwnn; 2547 entry.wwpn = port->wwpn; 2548 if (port->status & CTL_PORT_STATUS_ONLINE) 2549 entry.online = 1; 2550 else 2551 entry.online = 0; 2552 2553 list_entry = &list->entries[i]; 2554 2555 retval = copyout(&entry, list_entry, sizeof(entry)); 2556 if (retval != 0) { 2557 printf("%s: CTL_GET_PORT_LIST: copyout " 2558 "returned %d\n", __func__, retval); 2559 break; 2560 } 2561 i++; 2562 list->fill_num++; 2563 list->fill_len += sizeof(entry); 2564 } 2565 mtx_unlock(&softc->ctl_lock); 2566 2567 /* 2568 * If this is non-zero, we had a copyout fault, so there's 2569 * probably no point in attempting to set the status inside 2570 * the structure. 2571 */ 2572 if (retval != 0) 2573 break; 2574 2575 if (list->dropped_num > 0) 2576 list->status = CTL_PORT_LIST_NEED_MORE_SPACE; 2577 else 2578 list->status = CTL_PORT_LIST_OK; 2579 break; 2580 } 2581 case CTL_DUMP_OOA: { 2582 struct ctl_lun *lun; 2583 union ctl_io *io; 2584 char printbuf[128]; 2585 struct sbuf sb; 2586 2587 mtx_lock(&softc->ctl_lock); 2588 printf("Dumping OOA queues:\n"); 2589 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2590 mtx_lock(&lun->lun_lock); 2591 for (io = (union ctl_io *)TAILQ_FIRST( 2592 &lun->ooa_queue); io != NULL; 2593 io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2594 ooa_links)) { 2595 sbuf_new(&sb, printbuf, sizeof(printbuf), 2596 SBUF_FIXEDLEN); 2597 sbuf_printf(&sb, "LUN %jd tag 0x%04x%s%s%s%s: ", 2598 (intmax_t)lun->lun, 2599 io->scsiio.tag_num, 2600 (io->io_hdr.flags & 2601 CTL_FLAG_BLOCKED) ? "" : " BLOCKED", 2602 (io->io_hdr.flags & 2603 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 2604 (io->io_hdr.flags & 2605 CTL_FLAG_ABORT) ? " ABORT" : "", 2606 (io->io_hdr.flags & 2607 CTL_FLAG_IS_WAS_ON_RTR) ? " RTR" : ""); 2608 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 2609 sbuf_finish(&sb); 2610 printf("%s\n", sbuf_data(&sb)); 2611 } 2612 mtx_unlock(&lun->lun_lock); 2613 } 2614 printf("OOA queues dump done\n"); 2615 mtx_unlock(&softc->ctl_lock); 2616 break; 2617 } 2618 case CTL_GET_OOA: { 2619 struct ctl_lun *lun; 2620 struct ctl_ooa *ooa_hdr; 2621 struct ctl_ooa_entry *entries; 2622 uint32_t cur_fill_num; 2623 2624 ooa_hdr = (struct ctl_ooa *)addr; 2625 2626 if ((ooa_hdr->alloc_len == 0) 2627 || (ooa_hdr->alloc_num == 0)) { 2628 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2629 "must be non-zero\n", __func__, 2630 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2631 retval = EINVAL; 2632 break; 2633 } 2634 2635 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2636 sizeof(struct ctl_ooa_entry))) { 2637 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2638 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2639 __func__, ooa_hdr->alloc_len, 2640 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2641 retval = EINVAL; 2642 break; 2643 } 2644 2645 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2646 if (entries == NULL) { 2647 printf("%s: could not allocate %d bytes for OOA " 2648 "dump\n", __func__, ooa_hdr->alloc_len); 2649 retval = ENOMEM; 2650 break; 2651 } 2652 2653 mtx_lock(&softc->ctl_lock); 2654 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2655 && ((ooa_hdr->lun_num >= CTL_MAX_LUNS) 2656 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2657 mtx_unlock(&softc->ctl_lock); 2658 free(entries, M_CTL); 2659 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2660 __func__, (uintmax_t)ooa_hdr->lun_num); 2661 retval = EINVAL; 2662 break; 2663 } 2664 2665 cur_fill_num = 0; 2666 2667 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2668 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2669 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2670 ooa_hdr, entries); 2671 if (retval != 0) 2672 break; 2673 } 2674 if (retval != 0) { 2675 mtx_unlock(&softc->ctl_lock); 2676 free(entries, M_CTL); 2677 break; 2678 } 2679 } else { 2680 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2681 2682 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num,ooa_hdr, 2683 entries); 2684 } 2685 mtx_unlock(&softc->ctl_lock); 2686 2687 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2688 ooa_hdr->fill_len = ooa_hdr->fill_num * 2689 sizeof(struct ctl_ooa_entry); 2690 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2691 if (retval != 0) { 2692 printf("%s: error copying out %d bytes for OOA dump\n", 2693 __func__, ooa_hdr->fill_len); 2694 } 2695 2696 getbintime(&ooa_hdr->cur_bt); 2697 2698 if (cur_fill_num > ooa_hdr->alloc_num) { 2699 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2700 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2701 } else { 2702 ooa_hdr->dropped_num = 0; 2703 ooa_hdr->status = CTL_OOA_OK; 2704 } 2705 2706 free(entries, M_CTL); 2707 break; 2708 } 2709 case CTL_CHECK_OOA: { 2710 union ctl_io *io; 2711 struct ctl_lun *lun; 2712 struct ctl_ooa_info *ooa_info; 2713 2714 2715 ooa_info = (struct ctl_ooa_info *)addr; 2716 2717 if (ooa_info->lun_id >= CTL_MAX_LUNS) { 2718 ooa_info->status = CTL_OOA_INVALID_LUN; 2719 break; 2720 } 2721 mtx_lock(&softc->ctl_lock); 2722 lun = softc->ctl_luns[ooa_info->lun_id]; 2723 if (lun == NULL) { 2724 mtx_unlock(&softc->ctl_lock); 2725 ooa_info->status = CTL_OOA_INVALID_LUN; 2726 break; 2727 } 2728 mtx_lock(&lun->lun_lock); 2729 mtx_unlock(&softc->ctl_lock); 2730 ooa_info->num_entries = 0; 2731 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 2732 io != NULL; io = (union ctl_io *)TAILQ_NEXT( 2733 &io->io_hdr, ooa_links)) { 2734 ooa_info->num_entries++; 2735 } 2736 mtx_unlock(&lun->lun_lock); 2737 2738 ooa_info->status = CTL_OOA_SUCCESS; 2739 2740 break; 2741 } 2742 case CTL_HARD_START: 2743 case CTL_HARD_STOP: { 2744 struct ctl_fe_ioctl_startstop_info ss_info; 2745 struct cfi_metatask *metatask; 2746 struct mtx hs_mtx; 2747 2748 mtx_init(&hs_mtx, "HS Mutex", NULL, MTX_DEF); 2749 2750 cv_init(&ss_info.sem, "hard start/stop cv" ); 2751 2752 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2753 if (metatask == NULL) { 2754 retval = ENOMEM; 2755 mtx_destroy(&hs_mtx); 2756 break; 2757 } 2758 2759 if (cmd == CTL_HARD_START) 2760 metatask->tasktype = CFI_TASK_STARTUP; 2761 else 2762 metatask->tasktype = CFI_TASK_SHUTDOWN; 2763 2764 metatask->callback = ctl_ioctl_hard_startstop_callback; 2765 metatask->callback_arg = &ss_info; 2766 2767 cfi_action(metatask); 2768 2769 /* Wait for the callback */ 2770 mtx_lock(&hs_mtx); 2771 cv_wait_sig(&ss_info.sem, &hs_mtx); 2772 mtx_unlock(&hs_mtx); 2773 2774 /* 2775 * All information has been copied from the metatask by the 2776 * time cv_broadcast() is called, so we free the metatask here. 2777 */ 2778 cfi_free_metatask(metatask); 2779 2780 memcpy((void *)addr, &ss_info.hs_info, sizeof(ss_info.hs_info)); 2781 2782 mtx_destroy(&hs_mtx); 2783 break; 2784 } 2785 case CTL_BBRREAD: { 2786 struct ctl_bbrread_info *bbr_info; 2787 struct ctl_fe_ioctl_bbrread_info fe_bbr_info; 2788 struct mtx bbr_mtx; 2789 struct cfi_metatask *metatask; 2790 2791 bbr_info = (struct ctl_bbrread_info *)addr; 2792 2793 bzero(&fe_bbr_info, sizeof(fe_bbr_info)); 2794 2795 bzero(&bbr_mtx, sizeof(bbr_mtx)); 2796 mtx_init(&bbr_mtx, "BBR Mutex", NULL, MTX_DEF); 2797 2798 fe_bbr_info.bbr_info = bbr_info; 2799 fe_bbr_info.lock = &bbr_mtx; 2800 2801 cv_init(&fe_bbr_info.sem, "BBR read cv"); 2802 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2803 2804 if (metatask == NULL) { 2805 mtx_destroy(&bbr_mtx); 2806 cv_destroy(&fe_bbr_info.sem); 2807 retval = ENOMEM; 2808 break; 2809 } 2810 metatask->tasktype = CFI_TASK_BBRREAD; 2811 metatask->callback = ctl_ioctl_bbrread_callback; 2812 metatask->callback_arg = &fe_bbr_info; 2813 metatask->taskinfo.bbrread.lun_num = bbr_info->lun_num; 2814 metatask->taskinfo.bbrread.lba = bbr_info->lba; 2815 metatask->taskinfo.bbrread.len = bbr_info->len; 2816 2817 cfi_action(metatask); 2818 2819 mtx_lock(&bbr_mtx); 2820 while (fe_bbr_info.wakeup_done == 0) 2821 cv_wait_sig(&fe_bbr_info.sem, &bbr_mtx); 2822 mtx_unlock(&bbr_mtx); 2823 2824 bbr_info->status = metatask->status; 2825 bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2826 bbr_info->scsi_status = metatask->taskinfo.bbrread.scsi_status; 2827 memcpy(&bbr_info->sense_data, 2828 &metatask->taskinfo.bbrread.sense_data, 2829 ctl_min(sizeof(bbr_info->sense_data), 2830 sizeof(metatask->taskinfo.bbrread.sense_data))); 2831 2832 cfi_free_metatask(metatask); 2833 2834 mtx_destroy(&bbr_mtx); 2835 cv_destroy(&fe_bbr_info.sem); 2836 2837 break; 2838 } 2839 case CTL_DELAY_IO: { 2840 struct ctl_io_delay_info *delay_info; 2841#ifdef CTL_IO_DELAY 2842 struct ctl_lun *lun; 2843#endif /* CTL_IO_DELAY */ 2844 2845 delay_info = (struct ctl_io_delay_info *)addr; 2846 2847#ifdef CTL_IO_DELAY 2848 mtx_lock(&softc->ctl_lock); 2849 2850 if ((delay_info->lun_id >= CTL_MAX_LUNS) 2851 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2852 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2853 } else { 2854 lun = softc->ctl_luns[delay_info->lun_id]; 2855 mtx_lock(&lun->lun_lock); 2856 2857 delay_info->status = CTL_DELAY_STATUS_OK; 2858 2859 switch (delay_info->delay_type) { 2860 case CTL_DELAY_TYPE_CONT: 2861 break; 2862 case CTL_DELAY_TYPE_ONESHOT: 2863 break; 2864 default: 2865 delay_info->status = 2866 CTL_DELAY_STATUS_INVALID_TYPE; 2867 break; 2868 } 2869 2870 switch (delay_info->delay_loc) { 2871 case CTL_DELAY_LOC_DATAMOVE: 2872 lun->delay_info.datamove_type = 2873 delay_info->delay_type; 2874 lun->delay_info.datamove_delay = 2875 delay_info->delay_secs; 2876 break; 2877 case CTL_DELAY_LOC_DONE: 2878 lun->delay_info.done_type = 2879 delay_info->delay_type; 2880 lun->delay_info.done_delay = 2881 delay_info->delay_secs; 2882 break; 2883 default: 2884 delay_info->status = 2885 CTL_DELAY_STATUS_INVALID_LOC; 2886 break; 2887 } 2888 mtx_unlock(&lun->lun_lock); 2889 } 2890 2891 mtx_unlock(&softc->ctl_lock); 2892#else 2893 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2894#endif /* CTL_IO_DELAY */ 2895 break; 2896 } 2897 case CTL_REALSYNC_SET: { 2898 int *syncstate; 2899 2900 syncstate = (int *)addr; 2901 2902 mtx_lock(&softc->ctl_lock); 2903 switch (*syncstate) { 2904 case 0: 2905 softc->flags &= ~CTL_FLAG_REAL_SYNC; 2906 break; 2907 case 1: 2908 softc->flags |= CTL_FLAG_REAL_SYNC; 2909 break; 2910 default: 2911 retval = EINVAL; 2912 break; 2913 } 2914 mtx_unlock(&softc->ctl_lock); 2915 break; 2916 } 2917 case CTL_REALSYNC_GET: { 2918 int *syncstate; 2919 2920 syncstate = (int*)addr; 2921 2922 mtx_lock(&softc->ctl_lock); 2923 if (softc->flags & CTL_FLAG_REAL_SYNC) 2924 *syncstate = 1; 2925 else 2926 *syncstate = 0; 2927 mtx_unlock(&softc->ctl_lock); 2928 2929 break; 2930 } 2931 case CTL_SETSYNC: 2932 case CTL_GETSYNC: { 2933 struct ctl_sync_info *sync_info; 2934 struct ctl_lun *lun; 2935 2936 sync_info = (struct ctl_sync_info *)addr; 2937 2938 mtx_lock(&softc->ctl_lock); 2939 lun = softc->ctl_luns[sync_info->lun_id]; 2940 if (lun == NULL) { 2941 mtx_unlock(&softc->ctl_lock); 2942 sync_info->status = CTL_GS_SYNC_NO_LUN; 2943 } 2944 /* 2945 * Get or set the sync interval. We're not bounds checking 2946 * in the set case, hopefully the user won't do something 2947 * silly. 2948 */ 2949 mtx_lock(&lun->lun_lock); 2950 mtx_unlock(&softc->ctl_lock); 2951 if (cmd == CTL_GETSYNC) 2952 sync_info->sync_interval = lun->sync_interval; 2953 else 2954 lun->sync_interval = sync_info->sync_interval; 2955 mtx_unlock(&lun->lun_lock); 2956 2957 sync_info->status = CTL_GS_SYNC_OK; 2958 2959 break; 2960 } 2961 case CTL_GETSTATS: { 2962 struct ctl_stats *stats; 2963 struct ctl_lun *lun; 2964 int i; 2965 2966 stats = (struct ctl_stats *)addr; 2967 2968 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2969 stats->alloc_len) { 2970 stats->status = CTL_SS_NEED_MORE_SPACE; 2971 stats->num_luns = softc->num_luns; 2972 break; 2973 } 2974 /* 2975 * XXX KDM no locking here. If the LUN list changes, 2976 * things can blow up. 2977 */ 2978 for (i = 0, lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; 2979 i++, lun = STAILQ_NEXT(lun, links)) { 2980 retval = copyout(&lun->stats, &stats->lun_stats[i], 2981 sizeof(lun->stats)); 2982 if (retval != 0) 2983 break; 2984 } 2985 stats->num_luns = softc->num_luns; 2986 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2987 softc->num_luns; 2988 stats->status = CTL_SS_OK; 2989#ifdef CTL_TIME_IO 2990 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2991#else 2992 stats->flags = CTL_STATS_FLAG_NONE; 2993#endif 2994 getnanouptime(&stats->timestamp); 2995 break; 2996 } 2997 case CTL_ERROR_INJECT: { 2998 struct ctl_error_desc *err_desc, *new_err_desc; 2999 struct ctl_lun *lun; 3000 3001 err_desc = (struct ctl_error_desc *)addr; 3002 3003 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 3004 M_WAITOK | M_ZERO); 3005 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 3006 3007 mtx_lock(&softc->ctl_lock); 3008 lun = softc->ctl_luns[err_desc->lun_id]; 3009 if (lun == NULL) { 3010 mtx_unlock(&softc->ctl_lock); 3011 free(new_err_desc, M_CTL); 3012 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 3013 __func__, (uintmax_t)err_desc->lun_id); 3014 retval = EINVAL; 3015 break; 3016 } 3017 mtx_lock(&lun->lun_lock); 3018 mtx_unlock(&softc->ctl_lock); 3019 3020 /* 3021 * We could do some checking here to verify the validity 3022 * of the request, but given the complexity of error 3023 * injection requests, the checking logic would be fairly 3024 * complex. 3025 * 3026 * For now, if the request is invalid, it just won't get 3027 * executed and might get deleted. 3028 */ 3029 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 3030 3031 /* 3032 * XXX KDM check to make sure the serial number is unique, 3033 * in case we somehow manage to wrap. That shouldn't 3034 * happen for a very long time, but it's the right thing to 3035 * do. 3036 */ 3037 new_err_desc->serial = lun->error_serial; 3038 err_desc->serial = lun->error_serial; 3039 lun->error_serial++; 3040 3041 mtx_unlock(&lun->lun_lock); 3042 break; 3043 } 3044 case CTL_ERROR_INJECT_DELETE: { 3045 struct ctl_error_desc *delete_desc, *desc, *desc2; 3046 struct ctl_lun *lun; 3047 int delete_done; 3048 3049 delete_desc = (struct ctl_error_desc *)addr; 3050 delete_done = 0; 3051 3052 mtx_lock(&softc->ctl_lock); 3053 lun = softc->ctl_luns[delete_desc->lun_id]; 3054 if (lun == NULL) { 3055 mtx_unlock(&softc->ctl_lock); 3056 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 3057 __func__, (uintmax_t)delete_desc->lun_id); 3058 retval = EINVAL; 3059 break; 3060 } 3061 mtx_lock(&lun->lun_lock); 3062 mtx_unlock(&softc->ctl_lock); 3063 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 3064 if (desc->serial != delete_desc->serial) 3065 continue; 3066 3067 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 3068 links); 3069 free(desc, M_CTL); 3070 delete_done = 1; 3071 } 3072 mtx_unlock(&lun->lun_lock); 3073 if (delete_done == 0) { 3074 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 3075 "error serial %ju on LUN %u\n", __func__, 3076 delete_desc->serial, delete_desc->lun_id); 3077 retval = EINVAL; 3078 break; 3079 } 3080 break; 3081 } 3082 case CTL_DUMP_STRUCTS: { 3083 int i, j, k, idx; 3084 struct ctl_port *port; 3085 struct ctl_frontend *fe; 3086 3087 mtx_lock(&softc->ctl_lock); 3088 printf("CTL Persistent Reservation information start:\n"); 3089 for (i = 0; i < CTL_MAX_LUNS; i++) { 3090 struct ctl_lun *lun; 3091 3092 lun = softc->ctl_luns[i]; 3093 3094 if ((lun == NULL) 3095 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 3096 continue; 3097 3098 for (j = 0; j < (CTL_MAX_PORTS * 2); j++) { 3099 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 3100 idx = j * CTL_MAX_INIT_PER_PORT + k; 3101 if (lun->pr_keys[idx] == 0) 3102 continue; 3103 printf(" LUN %d port %d iid %d key " 3104 "%#jx\n", i, j, k, 3105 (uintmax_t)lun->pr_keys[idx]); 3106 } 3107 } 3108 } 3109 printf("CTL Persistent Reservation information end\n"); 3110 printf("CTL Ports:\n"); 3111 STAILQ_FOREACH(port, &softc->port_list, links) { 3112 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 3113 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 3114 port->frontend->name, port->port_type, 3115 port->physical_port, port->virtual_port, 3116 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 3117 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3118 if (port->wwpn_iid[j].in_use == 0 && 3119 port->wwpn_iid[j].wwpn == 0 && 3120 port->wwpn_iid[j].name == NULL) 3121 continue; 3122 3123 printf(" iid %u use %d WWPN %#jx '%s'\n", 3124 j, port->wwpn_iid[j].in_use, 3125 (uintmax_t)port->wwpn_iid[j].wwpn, 3126 port->wwpn_iid[j].name); 3127 } 3128 } 3129 printf("CTL Port information end\n"); 3130 mtx_unlock(&softc->ctl_lock); 3131 /* 3132 * XXX KDM calling this without a lock. We'd likely want 3133 * to drop the lock before calling the frontend's dump 3134 * routine anyway. 3135 */ 3136 printf("CTL Frontends:\n"); 3137 STAILQ_FOREACH(fe, &softc->fe_list, links) { 3138 printf(" Frontend '%s'\n", fe->name); 3139 if (fe->fe_dump != NULL) 3140 fe->fe_dump(); 3141 } 3142 printf("CTL Frontend information end\n"); 3143 break; 3144 } 3145 case CTL_LUN_REQ: { 3146 struct ctl_lun_req *lun_req; 3147 struct ctl_backend_driver *backend; 3148 3149 lun_req = (struct ctl_lun_req *)addr; 3150 3151 backend = ctl_backend_find(lun_req->backend); 3152 if (backend == NULL) { 3153 lun_req->status = CTL_LUN_ERROR; 3154 snprintf(lun_req->error_str, 3155 sizeof(lun_req->error_str), 3156 "Backend \"%s\" not found.", 3157 lun_req->backend); 3158 break; 3159 } 3160 if (lun_req->num_be_args > 0) { 3161 lun_req->kern_be_args = ctl_copyin_args( 3162 lun_req->num_be_args, 3163 lun_req->be_args, 3164 lun_req->error_str, 3165 sizeof(lun_req->error_str)); 3166 if (lun_req->kern_be_args == NULL) { 3167 lun_req->status = CTL_LUN_ERROR; 3168 break; 3169 } 3170 } 3171 3172 retval = backend->ioctl(dev, cmd, addr, flag, td); 3173 3174 if (lun_req->num_be_args > 0) { 3175 ctl_copyout_args(lun_req->num_be_args, 3176 lun_req->kern_be_args); 3177 ctl_free_args(lun_req->num_be_args, 3178 lun_req->kern_be_args); 3179 } 3180 break; 3181 } 3182 case CTL_LUN_LIST: { 3183 struct sbuf *sb; 3184 struct ctl_lun *lun; 3185 struct ctl_lun_list *list; 3186 struct ctl_option *opt; 3187 3188 list = (struct ctl_lun_list *)addr; 3189 3190 /* 3191 * Allocate a fixed length sbuf here, based on the length 3192 * of the user's buffer. We could allocate an auto-extending 3193 * buffer, and then tell the user how much larger our 3194 * amount of data is than his buffer, but that presents 3195 * some problems: 3196 * 3197 * 1. The sbuf(9) routines use a blocking malloc, and so 3198 * we can't hold a lock while calling them with an 3199 * auto-extending buffer. 3200 * 3201 * 2. There is not currently a LUN reference counting 3202 * mechanism, outside of outstanding transactions on 3203 * the LUN's OOA queue. So a LUN could go away on us 3204 * while we're getting the LUN number, backend-specific 3205 * information, etc. Thus, given the way things 3206 * currently work, we need to hold the CTL lock while 3207 * grabbing LUN information. 3208 * 3209 * So, from the user's standpoint, the best thing to do is 3210 * allocate what he thinks is a reasonable buffer length, 3211 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3212 * double the buffer length and try again. (And repeat 3213 * that until he succeeds.) 3214 */ 3215 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3216 if (sb == NULL) { 3217 list->status = CTL_LUN_LIST_ERROR; 3218 snprintf(list->error_str, sizeof(list->error_str), 3219 "Unable to allocate %d bytes for LUN list", 3220 list->alloc_len); 3221 break; 3222 } 3223 3224 sbuf_printf(sb, "<ctllunlist>\n"); 3225 3226 mtx_lock(&softc->ctl_lock); 3227 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3228 mtx_lock(&lun->lun_lock); 3229 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3230 (uintmax_t)lun->lun); 3231 3232 /* 3233 * Bail out as soon as we see that we've overfilled 3234 * the buffer. 3235 */ 3236 if (retval != 0) 3237 break; 3238 3239 retval = sbuf_printf(sb, "\t<backend_type>%s" 3240 "</backend_type>\n", 3241 (lun->backend == NULL) ? "none" : 3242 lun->backend->name); 3243 3244 if (retval != 0) 3245 break; 3246 3247 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3248 lun->be_lun->lun_type); 3249 3250 if (retval != 0) 3251 break; 3252 3253 if (lun->backend == NULL) { 3254 retval = sbuf_printf(sb, "</lun>\n"); 3255 if (retval != 0) 3256 break; 3257 continue; 3258 } 3259 3260 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3261 (lun->be_lun->maxlba > 0) ? 3262 lun->be_lun->maxlba + 1 : 0); 3263 3264 if (retval != 0) 3265 break; 3266 3267 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3268 lun->be_lun->blocksize); 3269 3270 if (retval != 0) 3271 break; 3272 3273 retval = sbuf_printf(sb, "\t<serial_number>"); 3274 3275 if (retval != 0) 3276 break; 3277 3278 retval = ctl_sbuf_printf_esc(sb, 3279 lun->be_lun->serial_num, 3280 sizeof(lun->be_lun->serial_num)); 3281 3282 if (retval != 0) 3283 break; 3284 3285 retval = sbuf_printf(sb, "</serial_number>\n"); 3286 3287 if (retval != 0) 3288 break; 3289 3290 retval = sbuf_printf(sb, "\t<device_id>"); 3291 3292 if (retval != 0) 3293 break; 3294 3295 retval = ctl_sbuf_printf_esc(sb, 3296 lun->be_lun->device_id, 3297 sizeof(lun->be_lun->device_id)); 3298 3299 if (retval != 0) 3300 break; 3301 3302 retval = sbuf_printf(sb, "</device_id>\n"); 3303 3304 if (retval != 0) 3305 break; 3306 3307 if (lun->backend->lun_info != NULL) { 3308 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3309 if (retval != 0) 3310 break; 3311 } 3312 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3313 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3314 opt->name, opt->value, opt->name); 3315 if (retval != 0) 3316 break; 3317 } 3318 3319 retval = sbuf_printf(sb, "</lun>\n"); 3320 3321 if (retval != 0) 3322 break; 3323 mtx_unlock(&lun->lun_lock); 3324 } 3325 if (lun != NULL) 3326 mtx_unlock(&lun->lun_lock); 3327 mtx_unlock(&softc->ctl_lock); 3328 3329 if ((retval != 0) 3330 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3331 retval = 0; 3332 sbuf_delete(sb); 3333 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3334 snprintf(list->error_str, sizeof(list->error_str), 3335 "Out of space, %d bytes is too small", 3336 list->alloc_len); 3337 break; 3338 } 3339 3340 sbuf_finish(sb); 3341 3342 retval = copyout(sbuf_data(sb), list->lun_xml, 3343 sbuf_len(sb) + 1); 3344 3345 list->fill_len = sbuf_len(sb) + 1; 3346 list->status = CTL_LUN_LIST_OK; 3347 sbuf_delete(sb); 3348 break; 3349 } 3350 case CTL_ISCSI: { 3351 struct ctl_iscsi *ci; 3352 struct ctl_frontend *fe; 3353 3354 ci = (struct ctl_iscsi *)addr; 3355 3356 fe = ctl_frontend_find("iscsi"); 3357 if (fe == NULL) { 3358 ci->status = CTL_ISCSI_ERROR; 3359 snprintf(ci->error_str, sizeof(ci->error_str), 3360 "Frontend \"iscsi\" not found."); 3361 break; 3362 } 3363 3364 retval = fe->ioctl(dev, cmd, addr, flag, td); 3365 break; 3366 } 3367 case CTL_PORT_REQ: { 3368 struct ctl_req *req; 3369 struct ctl_frontend *fe; 3370 3371 req = (struct ctl_req *)addr; 3372 3373 fe = ctl_frontend_find(req->driver); 3374 if (fe == NULL) { 3375 req->status = CTL_LUN_ERROR; 3376 snprintf(req->error_str, sizeof(req->error_str), 3377 "Frontend \"%s\" not found.", req->driver); 3378 break; 3379 } 3380 if (req->num_args > 0) { 3381 req->kern_args = ctl_copyin_args(req->num_args, 3382 req->args, req->error_str, sizeof(req->error_str)); 3383 if (req->kern_args == NULL) { 3384 req->status = CTL_LUN_ERROR; 3385 break; 3386 } 3387 } 3388 3389 retval = fe->ioctl(dev, cmd, addr, flag, td); 3390 3391 if (req->num_args > 0) { 3392 ctl_copyout_args(req->num_args, req->kern_args); 3393 ctl_free_args(req->num_args, req->kern_args); 3394 } 3395 break; 3396 } 3397 case CTL_PORT_LIST: { 3398 struct sbuf *sb; 3399 struct ctl_port *port; 3400 struct ctl_lun_list *list; 3401 struct ctl_option *opt; 3402 int j; 3403 3404 list = (struct ctl_lun_list *)addr; 3405 3406 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3407 if (sb == NULL) { 3408 list->status = CTL_LUN_LIST_ERROR; 3409 snprintf(list->error_str, sizeof(list->error_str), 3410 "Unable to allocate %d bytes for LUN list", 3411 list->alloc_len); 3412 break; 3413 } 3414 3415 sbuf_printf(sb, "<ctlportlist>\n"); 3416 3417 mtx_lock(&softc->ctl_lock); 3418 STAILQ_FOREACH(port, &softc->port_list, links) { 3419 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3420 (uintmax_t)port->targ_port); 3421 3422 /* 3423 * Bail out as soon as we see that we've overfilled 3424 * the buffer. 3425 */ 3426 if (retval != 0) 3427 break; 3428 3429 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3430 "</frontend_type>\n", port->frontend->name); 3431 if (retval != 0) 3432 break; 3433 3434 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3435 port->port_type); 3436 if (retval != 0) 3437 break; 3438 3439 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3440 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3441 if (retval != 0) 3442 break; 3443 3444 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3445 port->port_name); 3446 if (retval != 0) 3447 break; 3448 3449 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3450 port->physical_port); 3451 if (retval != 0) 3452 break; 3453 3454 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3455 port->virtual_port); 3456 if (retval != 0) 3457 break; 3458 3459 if (port->target_devid != NULL) { 3460 sbuf_printf(sb, "\t<target>"); 3461 ctl_id_sbuf(port->target_devid, sb); 3462 sbuf_printf(sb, "</target>\n"); 3463 } 3464 3465 if (port->port_devid != NULL) { 3466 sbuf_printf(sb, "\t<port>"); 3467 ctl_id_sbuf(port->port_devid, sb); 3468 sbuf_printf(sb, "</port>\n"); 3469 } 3470 3471 if (port->port_info != NULL) { 3472 retval = port->port_info(port->onoff_arg, sb); 3473 if (retval != 0) 3474 break; 3475 } 3476 STAILQ_FOREACH(opt, &port->options, links) { 3477 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3478 opt->name, opt->value, opt->name); 3479 if (retval != 0) 3480 break; 3481 } 3482 3483 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3484 if (port->wwpn_iid[j].in_use == 0 || 3485 (port->wwpn_iid[j].wwpn == 0 && 3486 port->wwpn_iid[j].name == NULL)) 3487 continue; 3488 3489 if (port->wwpn_iid[j].name != NULL) 3490 retval = sbuf_printf(sb, 3491 "\t<initiator>%u %s</initiator>\n", 3492 j, port->wwpn_iid[j].name); 3493 else 3494 retval = sbuf_printf(sb, 3495 "\t<initiator>%u naa.%08jx</initiator>\n", 3496 j, port->wwpn_iid[j].wwpn); 3497 if (retval != 0) 3498 break; 3499 } 3500 if (retval != 0) 3501 break; 3502 3503 retval = sbuf_printf(sb, "</targ_port>\n"); 3504 if (retval != 0) 3505 break; 3506 } 3507 mtx_unlock(&softc->ctl_lock); 3508 3509 if ((retval != 0) 3510 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3511 retval = 0; 3512 sbuf_delete(sb); 3513 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3514 snprintf(list->error_str, sizeof(list->error_str), 3515 "Out of space, %d bytes is too small", 3516 list->alloc_len); 3517 break; 3518 } 3519 3520 sbuf_finish(sb); 3521 3522 retval = copyout(sbuf_data(sb), list->lun_xml, 3523 sbuf_len(sb) + 1); 3524 3525 list->fill_len = sbuf_len(sb) + 1; 3526 list->status = CTL_LUN_LIST_OK; 3527 sbuf_delete(sb); 3528 break; 3529 } 3530 default: { 3531 /* XXX KDM should we fix this? */ 3532#if 0 3533 struct ctl_backend_driver *backend; 3534 unsigned int type; 3535 int found; 3536 3537 found = 0; 3538 3539 /* 3540 * We encode the backend type as the ioctl type for backend 3541 * ioctls. So parse it out here, and then search for a 3542 * backend of this type. 3543 */ 3544 type = _IOC_TYPE(cmd); 3545 3546 STAILQ_FOREACH(backend, &softc->be_list, links) { 3547 if (backend->type == type) { 3548 found = 1; 3549 break; 3550 } 3551 } 3552 if (found == 0) { 3553 printf("ctl: unknown ioctl command %#lx or backend " 3554 "%d\n", cmd, type); 3555 retval = EINVAL; 3556 break; 3557 } 3558 retval = backend->ioctl(dev, cmd, addr, flag, td); 3559#endif 3560 retval = ENOTTY; 3561 break; 3562 } 3563 } 3564 return (retval); 3565} 3566 3567uint32_t 3568ctl_get_initindex(struct ctl_nexus *nexus) 3569{ 3570 if (nexus->targ_port < CTL_MAX_PORTS) 3571 return (nexus->initid.id + 3572 (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3573 else 3574 return (nexus->initid.id + 3575 ((nexus->targ_port - CTL_MAX_PORTS) * 3576 CTL_MAX_INIT_PER_PORT)); 3577} 3578 3579uint32_t 3580ctl_get_resindex(struct ctl_nexus *nexus) 3581{ 3582 return (nexus->initid.id + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3583} 3584 3585uint32_t 3586ctl_port_idx(int port_num) 3587{ 3588 if (port_num < CTL_MAX_PORTS) 3589 return(port_num); 3590 else 3591 return(port_num - CTL_MAX_PORTS); 3592} 3593 3594static uint32_t 3595ctl_map_lun(int port_num, uint32_t lun_id) 3596{ 3597 struct ctl_port *port; 3598 3599 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3600 if (port == NULL) 3601 return (UINT32_MAX); 3602 if (port->lun_map == NULL) 3603 return (lun_id); 3604 return (port->lun_map(port->targ_lun_arg, lun_id)); 3605} 3606 3607static uint32_t 3608ctl_map_lun_back(int port_num, uint32_t lun_id) 3609{ 3610 struct ctl_port *port; 3611 uint32_t i; 3612 3613 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3614 if (port->lun_map == NULL) 3615 return (lun_id); 3616 for (i = 0; i < CTL_MAX_LUNS; i++) { 3617 if (port->lun_map(port->targ_lun_arg, i) == lun_id) 3618 return (i); 3619 } 3620 return (UINT32_MAX); 3621} 3622 3623/* 3624 * Note: This only works for bitmask sizes that are at least 32 bits, and 3625 * that are a power of 2. 3626 */ 3627int 3628ctl_ffz(uint32_t *mask, uint32_t size) 3629{ 3630 uint32_t num_chunks, num_pieces; 3631 int i, j; 3632 3633 num_chunks = (size >> 5); 3634 if (num_chunks == 0) 3635 num_chunks++; 3636 num_pieces = ctl_min((sizeof(uint32_t) * 8), size); 3637 3638 for (i = 0; i < num_chunks; i++) { 3639 for (j = 0; j < num_pieces; j++) { 3640 if ((mask[i] & (1 << j)) == 0) 3641 return ((i << 5) + j); 3642 } 3643 } 3644 3645 return (-1); 3646} 3647 3648int 3649ctl_set_mask(uint32_t *mask, uint32_t bit) 3650{ 3651 uint32_t chunk, piece; 3652 3653 chunk = bit >> 5; 3654 piece = bit % (sizeof(uint32_t) * 8); 3655 3656 if ((mask[chunk] & (1 << piece)) != 0) 3657 return (-1); 3658 else 3659 mask[chunk] |= (1 << piece); 3660 3661 return (0); 3662} 3663 3664int 3665ctl_clear_mask(uint32_t *mask, uint32_t bit) 3666{ 3667 uint32_t chunk, piece; 3668 3669 chunk = bit >> 5; 3670 piece = bit % (sizeof(uint32_t) * 8); 3671 3672 if ((mask[chunk] & (1 << piece)) == 0) 3673 return (-1); 3674 else 3675 mask[chunk] &= ~(1 << piece); 3676 3677 return (0); 3678} 3679 3680int 3681ctl_is_set(uint32_t *mask, uint32_t bit) 3682{ 3683 uint32_t chunk, piece; 3684 3685 chunk = bit >> 5; 3686 piece = bit % (sizeof(uint32_t) * 8); 3687 3688 if ((mask[chunk] & (1 << piece)) == 0) 3689 return (0); 3690 else 3691 return (1); 3692} 3693 3694#ifdef unused 3695/* 3696 * The bus, target and lun are optional, they can be filled in later. 3697 * can_wait is used to determine whether we can wait on the malloc or not. 3698 */ 3699union ctl_io* 3700ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, uint32_t targ_target, 3701 uint32_t targ_lun, int can_wait) 3702{ 3703 union ctl_io *io; 3704 3705 if (can_wait) 3706 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_WAITOK); 3707 else 3708 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_NOWAIT); 3709 3710 if (io != NULL) { 3711 io->io_hdr.io_type = io_type; 3712 io->io_hdr.targ_port = targ_port; 3713 /* 3714 * XXX KDM this needs to change/go away. We need to move 3715 * to a preallocated pool of ctl_scsiio structures. 3716 */ 3717 io->io_hdr.nexus.targ_target.id = targ_target; 3718 io->io_hdr.nexus.targ_lun = targ_lun; 3719 } 3720 3721 return (io); 3722} 3723 3724void 3725ctl_kfree_io(union ctl_io *io) 3726{ 3727 free(io, M_CTL); 3728} 3729#endif /* unused */ 3730 3731/* 3732 * ctl_softc, pool_type, total_ctl_io are passed in. 3733 * npool is passed out. 3734 */ 3735int 3736ctl_pool_create(struct ctl_softc *ctl_softc, ctl_pool_type pool_type, 3737 uint32_t total_ctl_io, struct ctl_io_pool **npool) 3738{ 3739 uint32_t i; 3740 union ctl_io *cur_io, *next_io; 3741 struct ctl_io_pool *pool; 3742 int retval; 3743 3744 retval = 0; 3745 3746 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3747 M_NOWAIT | M_ZERO); 3748 if (pool == NULL) { 3749 retval = ENOMEM; 3750 goto bailout; 3751 } 3752 3753 pool->type = pool_type; 3754 pool->ctl_softc = ctl_softc; 3755 3756 mtx_lock(&ctl_softc->pool_lock); 3757 pool->id = ctl_softc->cur_pool_id++; 3758 mtx_unlock(&ctl_softc->pool_lock); 3759 3760 pool->flags = CTL_POOL_FLAG_NONE; 3761 pool->refcount = 1; /* Reference for validity. */ 3762 STAILQ_INIT(&pool->free_queue); 3763 3764 /* 3765 * XXX KDM other options here: 3766 * - allocate a page at a time 3767 * - allocate one big chunk of memory. 3768 * Page allocation might work well, but would take a little more 3769 * tracking. 3770 */ 3771 for (i = 0; i < total_ctl_io; i++) { 3772 cur_io = (union ctl_io *)malloc(sizeof(*cur_io), M_CTLIO, 3773 M_NOWAIT); 3774 if (cur_io == NULL) { 3775 retval = ENOMEM; 3776 break; 3777 } 3778 cur_io->io_hdr.pool = pool; 3779 STAILQ_INSERT_TAIL(&pool->free_queue, &cur_io->io_hdr, links); 3780 pool->total_ctl_io++; 3781 pool->free_ctl_io++; 3782 } 3783 3784 if (retval != 0) { 3785 for (cur_io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3786 cur_io != NULL; cur_io = next_io) { 3787 next_io = (union ctl_io *)STAILQ_NEXT(&cur_io->io_hdr, 3788 links); 3789 STAILQ_REMOVE(&pool->free_queue, &cur_io->io_hdr, 3790 ctl_io_hdr, links); 3791 free(cur_io, M_CTLIO); 3792 } 3793 3794 free(pool, M_CTL); 3795 goto bailout; 3796 } 3797 mtx_lock(&ctl_softc->pool_lock); 3798 ctl_softc->num_pools++; 3799 STAILQ_INSERT_TAIL(&ctl_softc->io_pools, pool, links); 3800 /* 3801 * Increment our usage count if this is an external consumer, so we 3802 * can't get unloaded until the external consumer (most likely a 3803 * FETD) unloads and frees his pool. 3804 * 3805 * XXX KDM will this increment the caller's module use count, or 3806 * mine? 3807 */ 3808#if 0 3809 if ((pool_type != CTL_POOL_EMERGENCY) 3810 && (pool_type != CTL_POOL_INTERNAL) 3811 && (pool_type != CTL_POOL_4OTHERSC)) 3812 MOD_INC_USE_COUNT; 3813#endif 3814 3815 mtx_unlock(&ctl_softc->pool_lock); 3816 3817 *npool = pool; 3818 3819bailout: 3820 3821 return (retval); 3822} 3823 3824static int 3825ctl_pool_acquire(struct ctl_io_pool *pool) 3826{ 3827 3828 mtx_assert(&pool->ctl_softc->pool_lock, MA_OWNED); 3829 3830 if (pool->flags & CTL_POOL_FLAG_INVALID) 3831 return (EINVAL); 3832 3833 pool->refcount++; 3834 3835 return (0); 3836} 3837 3838static void 3839ctl_pool_release(struct ctl_io_pool *pool) 3840{ 3841 struct ctl_softc *ctl_softc = pool->ctl_softc; 3842 union ctl_io *io; 3843 3844 mtx_assert(&ctl_softc->pool_lock, MA_OWNED); 3845 3846 if (--pool->refcount != 0) 3847 return; 3848 3849 while ((io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue)) != NULL) { 3850 STAILQ_REMOVE(&pool->free_queue, &io->io_hdr, ctl_io_hdr, 3851 links); 3852 free(io, M_CTLIO); 3853 } 3854 3855 STAILQ_REMOVE(&ctl_softc->io_pools, pool, ctl_io_pool, links); 3856 ctl_softc->num_pools--; 3857 3858 /* 3859 * XXX KDM will this decrement the caller's usage count or mine? 3860 */ 3861#if 0 3862 if ((pool->type != CTL_POOL_EMERGENCY) 3863 && (pool->type != CTL_POOL_INTERNAL) 3864 && (pool->type != CTL_POOL_4OTHERSC)) 3865 MOD_DEC_USE_COUNT; 3866#endif 3867 3868 free(pool, M_CTL); 3869} 3870 3871void 3872ctl_pool_free(struct ctl_io_pool *pool) 3873{ 3874 struct ctl_softc *ctl_softc; 3875 3876 if (pool == NULL) 3877 return; 3878 3879 ctl_softc = pool->ctl_softc; 3880 mtx_lock(&ctl_softc->pool_lock); 3881 pool->flags |= CTL_POOL_FLAG_INVALID; 3882 ctl_pool_release(pool); 3883 mtx_unlock(&ctl_softc->pool_lock); 3884} 3885 3886/* 3887 * This routine does not block (except for spinlocks of course). 3888 * It tries to allocate a ctl_io union from the caller's pool as quickly as 3889 * possible. 3890 */ 3891union ctl_io * 3892ctl_alloc_io(void *pool_ref) 3893{ 3894 union ctl_io *io; 3895 struct ctl_softc *ctl_softc; 3896 struct ctl_io_pool *pool, *npool; 3897 struct ctl_io_pool *emergency_pool; 3898 3899 pool = (struct ctl_io_pool *)pool_ref; 3900 3901 if (pool == NULL) { 3902 printf("%s: pool is NULL\n", __func__); 3903 return (NULL); 3904 } 3905 3906 emergency_pool = NULL; 3907 3908 ctl_softc = pool->ctl_softc; 3909 3910 mtx_lock(&ctl_softc->pool_lock); 3911 /* 3912 * First, try to get the io structure from the user's pool. 3913 */ 3914 if (ctl_pool_acquire(pool) == 0) { 3915 io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3916 if (io != NULL) { 3917 STAILQ_REMOVE_HEAD(&pool->free_queue, links); 3918 pool->total_allocated++; 3919 pool->free_ctl_io--; 3920 mtx_unlock(&ctl_softc->pool_lock); 3921 return (io); 3922 } else 3923 ctl_pool_release(pool); 3924 } 3925 /* 3926 * If he doesn't have any io structures left, search for an 3927 * emergency pool and grab one from there. 3928 */ 3929 STAILQ_FOREACH(npool, &ctl_softc->io_pools, links) { 3930 if (npool->type != CTL_POOL_EMERGENCY) 3931 continue; 3932 3933 if (ctl_pool_acquire(npool) != 0) 3934 continue; 3935 3936 emergency_pool = npool; 3937 3938 io = (union ctl_io *)STAILQ_FIRST(&npool->free_queue); 3939 if (io != NULL) { 3940 STAILQ_REMOVE_HEAD(&npool->free_queue, links); 3941 npool->total_allocated++; 3942 npool->free_ctl_io--; 3943 mtx_unlock(&ctl_softc->pool_lock); 3944 return (io); 3945 } else 3946 ctl_pool_release(npool); 3947 } 3948 3949 /* Drop the spinlock before we malloc */ 3950 mtx_unlock(&ctl_softc->pool_lock); 3951 3952 /* 3953 * The emergency pool (if it exists) didn't have one, so try an 3954 * atomic (i.e. nonblocking) malloc and see if we get lucky. 3955 */ 3956 io = (union ctl_io *)malloc(sizeof(*io), M_CTLIO, M_NOWAIT); 3957 if (io != NULL) { 3958 /* 3959 * If the emergency pool exists but is empty, add this 3960 * ctl_io to its list when it gets freed. 3961 */ 3962 if (emergency_pool != NULL) { 3963 mtx_lock(&ctl_softc->pool_lock); 3964 if (ctl_pool_acquire(emergency_pool) == 0) { 3965 io->io_hdr.pool = emergency_pool; 3966 emergency_pool->total_ctl_io++; 3967 /* 3968 * Need to bump this, otherwise 3969 * total_allocated and total_freed won't 3970 * match when we no longer have anything 3971 * outstanding. 3972 */ 3973 emergency_pool->total_allocated++; 3974 } 3975 mtx_unlock(&ctl_softc->pool_lock); 3976 } else 3977 io->io_hdr.pool = NULL; 3978 } 3979 3980 return (io); 3981} 3982 3983void 3984ctl_free_io(union ctl_io *io) 3985{ 3986 if (io == NULL) 3987 return; 3988 3989 /* 3990 * If this ctl_io has a pool, return it to that pool. 3991 */ 3992 if (io->io_hdr.pool != NULL) { 3993 struct ctl_io_pool *pool; 3994 3995 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3996 mtx_lock(&pool->ctl_softc->pool_lock); 3997 io->io_hdr.io_type = 0xff; 3998 STAILQ_INSERT_TAIL(&pool->free_queue, &io->io_hdr, links); 3999 pool->total_freed++; 4000 pool->free_ctl_io++; 4001 ctl_pool_release(pool); 4002 mtx_unlock(&pool->ctl_softc->pool_lock); 4003 } else { 4004 /* 4005 * Otherwise, just free it. We probably malloced it and 4006 * the emergency pool wasn't available. 4007 */ 4008 free(io, M_CTLIO); 4009 } 4010 4011} 4012 4013void 4014ctl_zero_io(union ctl_io *io) 4015{ 4016 void *pool_ref; 4017 4018 if (io == NULL) 4019 return; 4020 4021 /* 4022 * May need to preserve linked list pointers at some point too. 4023 */ 4024 pool_ref = io->io_hdr.pool; 4025 4026 memset(io, 0, sizeof(*io)); 4027 4028 io->io_hdr.pool = pool_ref; 4029} 4030 4031/* 4032 * This routine is currently used for internal copies of ctl_ios that need 4033 * to persist for some reason after we've already returned status to the 4034 * FETD. (Thus the flag set.) 4035 * 4036 * XXX XXX 4037 * Note that this makes a blind copy of all fields in the ctl_io, except 4038 * for the pool reference. This includes any memory that has been 4039 * allocated! That memory will no longer be valid after done has been 4040 * called, so this would be VERY DANGEROUS for command that actually does 4041 * any reads or writes. Right now (11/7/2005), this is only used for immediate 4042 * start and stop commands, which don't transfer any data, so this is not a 4043 * problem. If it is used for anything else, the caller would also need to 4044 * allocate data buffer space and this routine would need to be modified to 4045 * copy the data buffer(s) as well. 4046 */ 4047void 4048ctl_copy_io(union ctl_io *src, union ctl_io *dest) 4049{ 4050 void *pool_ref; 4051 4052 if ((src == NULL) 4053 || (dest == NULL)) 4054 return; 4055 4056 /* 4057 * May need to preserve linked list pointers at some point too. 4058 */ 4059 pool_ref = dest->io_hdr.pool; 4060 4061 memcpy(dest, src, ctl_min(sizeof(*src), sizeof(*dest))); 4062 4063 dest->io_hdr.pool = pool_ref; 4064 /* 4065 * We need to know that this is an internal copy, and doesn't need 4066 * to get passed back to the FETD that allocated it. 4067 */ 4068 dest->io_hdr.flags |= CTL_FLAG_INT_COPY; 4069} 4070 4071static int 4072ctl_expand_number(const char *buf, uint64_t *num) 4073{ 4074 char *endptr; 4075 uint64_t number; 4076 unsigned shift; 4077 4078 number = strtoq(buf, &endptr, 0); 4079 4080 switch (tolower((unsigned char)*endptr)) { 4081 case 'e': 4082 shift = 60; 4083 break; 4084 case 'p': 4085 shift = 50; 4086 break; 4087 case 't': 4088 shift = 40; 4089 break; 4090 case 'g': 4091 shift = 30; 4092 break; 4093 case 'm': 4094 shift = 20; 4095 break; 4096 case 'k': 4097 shift = 10; 4098 break; 4099 case 'b': 4100 case '\0': /* No unit. */ 4101 *num = number; 4102 return (0); 4103 default: 4104 /* Unrecognized unit. */ 4105 return (-1); 4106 } 4107 4108 if ((number << shift) >> shift != number) { 4109 /* Overflow */ 4110 return (-1); 4111 } 4112 *num = number << shift; 4113 return (0); 4114} 4115 4116 4117/* 4118 * This routine could be used in the future to load default and/or saved 4119 * mode page parameters for a particuar lun. 4120 */ 4121static int 4122ctl_init_page_index(struct ctl_lun *lun) 4123{ 4124 int i; 4125 struct ctl_page_index *page_index; 4126 const char *value; 4127 uint64_t ival; 4128 4129 memcpy(&lun->mode_pages.index, page_index_template, 4130 sizeof(page_index_template)); 4131 4132 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 4133 4134 page_index = &lun->mode_pages.index[i]; 4135 /* 4136 * If this is a disk-only mode page, there's no point in 4137 * setting it up. For some pages, we have to have some 4138 * basic information about the disk in order to calculate the 4139 * mode page data. 4140 */ 4141 if ((lun->be_lun->lun_type != T_DIRECT) 4142 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 4143 continue; 4144 4145 switch (page_index->page_code & SMPH_PC_MASK) { 4146 case SMS_RW_ERROR_RECOVERY_PAGE: { 4147 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4148 panic("subpage is incorrect!"); 4149 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT], 4150 &rw_er_page_default, 4151 sizeof(rw_er_page_default)); 4152 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CHANGEABLE], 4153 &rw_er_page_changeable, 4154 sizeof(rw_er_page_changeable)); 4155 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_DEFAULT], 4156 &rw_er_page_default, 4157 sizeof(rw_er_page_default)); 4158 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_SAVED], 4159 &rw_er_page_default, 4160 sizeof(rw_er_page_default)); 4161 page_index->page_data = 4162 (uint8_t *)lun->mode_pages.rw_er_page; 4163 break; 4164 } 4165 case SMS_FORMAT_DEVICE_PAGE: { 4166 struct scsi_format_page *format_page; 4167 4168 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4169 panic("subpage is incorrect!"); 4170 4171 /* 4172 * Sectors per track are set above. Bytes per 4173 * sector need to be set here on a per-LUN basis. 4174 */ 4175 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 4176 &format_page_default, 4177 sizeof(format_page_default)); 4178 memcpy(&lun->mode_pages.format_page[ 4179 CTL_PAGE_CHANGEABLE], &format_page_changeable, 4180 sizeof(format_page_changeable)); 4181 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 4182 &format_page_default, 4183 sizeof(format_page_default)); 4184 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 4185 &format_page_default, 4186 sizeof(format_page_default)); 4187 4188 format_page = &lun->mode_pages.format_page[ 4189 CTL_PAGE_CURRENT]; 4190 scsi_ulto2b(lun->be_lun->blocksize, 4191 format_page->bytes_per_sector); 4192 4193 format_page = &lun->mode_pages.format_page[ 4194 CTL_PAGE_DEFAULT]; 4195 scsi_ulto2b(lun->be_lun->blocksize, 4196 format_page->bytes_per_sector); 4197 4198 format_page = &lun->mode_pages.format_page[ 4199 CTL_PAGE_SAVED]; 4200 scsi_ulto2b(lun->be_lun->blocksize, 4201 format_page->bytes_per_sector); 4202 4203 page_index->page_data = 4204 (uint8_t *)lun->mode_pages.format_page; 4205 break; 4206 } 4207 case SMS_RIGID_DISK_PAGE: { 4208 struct scsi_rigid_disk_page *rigid_disk_page; 4209 uint32_t sectors_per_cylinder; 4210 uint64_t cylinders; 4211#ifndef __XSCALE__ 4212 int shift; 4213#endif /* !__XSCALE__ */ 4214 4215 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4216 panic("invalid subpage value %d", 4217 page_index->subpage); 4218 4219 /* 4220 * Rotation rate and sectors per track are set 4221 * above. We calculate the cylinders here based on 4222 * capacity. Due to the number of heads and 4223 * sectors per track we're using, smaller arrays 4224 * may turn out to have 0 cylinders. Linux and 4225 * FreeBSD don't pay attention to these mode pages 4226 * to figure out capacity, but Solaris does. It 4227 * seems to deal with 0 cylinders just fine, and 4228 * works out a fake geometry based on the capacity. 4229 */ 4230 memcpy(&lun->mode_pages.rigid_disk_page[ 4231 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 4232 sizeof(rigid_disk_page_default)); 4233 memcpy(&lun->mode_pages.rigid_disk_page[ 4234 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4235 sizeof(rigid_disk_page_changeable)); 4236 4237 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4238 CTL_DEFAULT_HEADS; 4239 4240 /* 4241 * The divide method here will be more accurate, 4242 * probably, but results in floating point being 4243 * used in the kernel on i386 (__udivdi3()). On the 4244 * XScale, though, __udivdi3() is implemented in 4245 * software. 4246 * 4247 * The shift method for cylinder calculation is 4248 * accurate if sectors_per_cylinder is a power of 4249 * 2. Otherwise it might be slightly off -- you 4250 * might have a bit of a truncation problem. 4251 */ 4252#ifdef __XSCALE__ 4253 cylinders = (lun->be_lun->maxlba + 1) / 4254 sectors_per_cylinder; 4255#else 4256 for (shift = 31; shift > 0; shift--) { 4257 if (sectors_per_cylinder & (1 << shift)) 4258 break; 4259 } 4260 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4261#endif 4262 4263 /* 4264 * We've basically got 3 bytes, or 24 bits for the 4265 * cylinder size in the mode page. If we're over, 4266 * just round down to 2^24. 4267 */ 4268 if (cylinders > 0xffffff) 4269 cylinders = 0xffffff; 4270 4271 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4272 CTL_PAGE_DEFAULT]; 4273 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4274 4275 if ((value = ctl_get_opt(&lun->be_lun->options, 4276 "rpm")) != NULL) { 4277 scsi_ulto2b(strtol(value, NULL, 0), 4278 rigid_disk_page->rotation_rate); 4279 } 4280 4281 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_CURRENT], 4282 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4283 sizeof(rigid_disk_page_default)); 4284 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_SAVED], 4285 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4286 sizeof(rigid_disk_page_default)); 4287 4288 page_index->page_data = 4289 (uint8_t *)lun->mode_pages.rigid_disk_page; 4290 break; 4291 } 4292 case SMS_CACHING_PAGE: { 4293 struct scsi_caching_page *caching_page; 4294 4295 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4296 panic("invalid subpage value %d", 4297 page_index->subpage); 4298 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4299 &caching_page_default, 4300 sizeof(caching_page_default)); 4301 memcpy(&lun->mode_pages.caching_page[ 4302 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4303 sizeof(caching_page_changeable)); 4304 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4305 &caching_page_default, 4306 sizeof(caching_page_default)); 4307 caching_page = &lun->mode_pages.caching_page[ 4308 CTL_PAGE_SAVED]; 4309 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4310 if (value != NULL && strcmp(value, "off") == 0) 4311 caching_page->flags1 &= ~SCP_WCE; 4312 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4313 if (value != NULL && strcmp(value, "off") == 0) 4314 caching_page->flags1 |= SCP_RCD; 4315 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4316 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4317 sizeof(caching_page_default)); 4318 page_index->page_data = 4319 (uint8_t *)lun->mode_pages.caching_page; 4320 break; 4321 } 4322 case SMS_CONTROL_MODE_PAGE: { 4323 struct scsi_control_page *control_page; 4324 4325 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4326 panic("invalid subpage value %d", 4327 page_index->subpage); 4328 4329 memcpy(&lun->mode_pages.control_page[CTL_PAGE_DEFAULT], 4330 &control_page_default, 4331 sizeof(control_page_default)); 4332 memcpy(&lun->mode_pages.control_page[ 4333 CTL_PAGE_CHANGEABLE], &control_page_changeable, 4334 sizeof(control_page_changeable)); 4335 memcpy(&lun->mode_pages.control_page[CTL_PAGE_SAVED], 4336 &control_page_default, 4337 sizeof(control_page_default)); 4338 control_page = &lun->mode_pages.control_page[ 4339 CTL_PAGE_SAVED]; 4340 value = ctl_get_opt(&lun->be_lun->options, "reordering"); 4341 if (value != NULL && strcmp(value, "unrestricted") == 0) { 4342 control_page->queue_flags &= ~SCP_QUEUE_ALG_MASK; 4343 control_page->queue_flags |= SCP_QUEUE_ALG_UNRESTRICTED; 4344 } 4345 memcpy(&lun->mode_pages.control_page[CTL_PAGE_CURRENT], 4346 &lun->mode_pages.control_page[CTL_PAGE_SAVED], 4347 sizeof(control_page_default)); 4348 page_index->page_data = 4349 (uint8_t *)lun->mode_pages.control_page; 4350 break; 4351 4352 } 4353 case SMS_INFO_EXCEPTIONS_PAGE: { 4354 switch (page_index->subpage) { 4355 case SMS_SUBPAGE_PAGE_0: 4356 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_CURRENT], 4357 &ie_page_default, 4358 sizeof(ie_page_default)); 4359 memcpy(&lun->mode_pages.ie_page[ 4360 CTL_PAGE_CHANGEABLE], &ie_page_changeable, 4361 sizeof(ie_page_changeable)); 4362 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_DEFAULT], 4363 &ie_page_default, 4364 sizeof(ie_page_default)); 4365 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_SAVED], 4366 &ie_page_default, 4367 sizeof(ie_page_default)); 4368 page_index->page_data = 4369 (uint8_t *)lun->mode_pages.ie_page; 4370 break; 4371 case 0x02: { 4372 struct ctl_logical_block_provisioning_page *page; 4373 4374 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_DEFAULT], 4375 &lbp_page_default, 4376 sizeof(lbp_page_default)); 4377 memcpy(&lun->mode_pages.lbp_page[ 4378 CTL_PAGE_CHANGEABLE], &lbp_page_changeable, 4379 sizeof(lbp_page_changeable)); 4380 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4381 &lbp_page_default, 4382 sizeof(lbp_page_default)); 4383 page = &lun->mode_pages.lbp_page[CTL_PAGE_SAVED]; 4384 value = ctl_get_opt(&lun->be_lun->options, 4385 "avail-threshold"); 4386 if (value != NULL && 4387 ctl_expand_number(value, &ival) == 0) { 4388 page->descr[0].flags |= SLBPPD_ENABLED | 4389 SLBPPD_ARMING_DEC; 4390 if (lun->be_lun->blocksize) 4391 ival /= lun->be_lun->blocksize; 4392 else 4393 ival /= 512; 4394 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4395 page->descr[0].count); 4396 } 4397 value = ctl_get_opt(&lun->be_lun->options, 4398 "used-threshold"); 4399 if (value != NULL && 4400 ctl_expand_number(value, &ival) == 0) { 4401 page->descr[1].flags |= SLBPPD_ENABLED | 4402 SLBPPD_ARMING_INC; 4403 if (lun->be_lun->blocksize) 4404 ival /= lun->be_lun->blocksize; 4405 else 4406 ival /= 512; 4407 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4408 page->descr[1].count); 4409 } 4410 value = ctl_get_opt(&lun->be_lun->options, 4411 "pool-avail-threshold"); 4412 if (value != NULL && 4413 ctl_expand_number(value, &ival) == 0) { 4414 page->descr[2].flags |= SLBPPD_ENABLED | 4415 SLBPPD_ARMING_DEC; 4416 if (lun->be_lun->blocksize) 4417 ival /= lun->be_lun->blocksize; 4418 else 4419 ival /= 512; 4420 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4421 page->descr[2].count); 4422 } 4423 value = ctl_get_opt(&lun->be_lun->options, 4424 "pool-used-threshold"); 4425 if (value != NULL && 4426 ctl_expand_number(value, &ival) == 0) { 4427 page->descr[3].flags |= SLBPPD_ENABLED | 4428 SLBPPD_ARMING_INC; 4429 if (lun->be_lun->blocksize) 4430 ival /= lun->be_lun->blocksize; 4431 else 4432 ival /= 512; 4433 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4434 page->descr[3].count); 4435 } 4436 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_CURRENT], 4437 &lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4438 sizeof(lbp_page_default)); 4439 page_index->page_data = 4440 (uint8_t *)lun->mode_pages.lbp_page; 4441 }} 4442 break; 4443 } 4444 case SMS_VENDOR_SPECIFIC_PAGE:{ 4445 switch (page_index->subpage) { 4446 case DBGCNF_SUBPAGE_CODE: { 4447 struct copan_debugconf_subpage *current_page, 4448 *saved_page; 4449 4450 memcpy(&lun->mode_pages.debugconf_subpage[ 4451 CTL_PAGE_CURRENT], 4452 &debugconf_page_default, 4453 sizeof(debugconf_page_default)); 4454 memcpy(&lun->mode_pages.debugconf_subpage[ 4455 CTL_PAGE_CHANGEABLE], 4456 &debugconf_page_changeable, 4457 sizeof(debugconf_page_changeable)); 4458 memcpy(&lun->mode_pages.debugconf_subpage[ 4459 CTL_PAGE_DEFAULT], 4460 &debugconf_page_default, 4461 sizeof(debugconf_page_default)); 4462 memcpy(&lun->mode_pages.debugconf_subpage[ 4463 CTL_PAGE_SAVED], 4464 &debugconf_page_default, 4465 sizeof(debugconf_page_default)); 4466 page_index->page_data = 4467 (uint8_t *)lun->mode_pages.debugconf_subpage; 4468 4469 current_page = (struct copan_debugconf_subpage *) 4470 (page_index->page_data + 4471 (page_index->page_len * 4472 CTL_PAGE_CURRENT)); 4473 saved_page = (struct copan_debugconf_subpage *) 4474 (page_index->page_data + 4475 (page_index->page_len * 4476 CTL_PAGE_SAVED)); 4477 break; 4478 } 4479 default: 4480 panic("invalid subpage value %d", 4481 page_index->subpage); 4482 break; 4483 } 4484 break; 4485 } 4486 default: 4487 panic("invalid page value %d", 4488 page_index->page_code & SMPH_PC_MASK); 4489 break; 4490 } 4491 } 4492 4493 return (CTL_RETVAL_COMPLETE); 4494} 4495 4496static int 4497ctl_init_log_page_index(struct ctl_lun *lun) 4498{ 4499 struct ctl_page_index *page_index; 4500 int i, j, k, prev; 4501 4502 memcpy(&lun->log_pages.index, log_page_index_template, 4503 sizeof(log_page_index_template)); 4504 4505 prev = -1; 4506 for (i = 0, j = 0, k = 0; i < CTL_NUM_LOG_PAGES; i++) { 4507 4508 page_index = &lun->log_pages.index[i]; 4509 /* 4510 * If this is a disk-only mode page, there's no point in 4511 * setting it up. For some pages, we have to have some 4512 * basic information about the disk in order to calculate the 4513 * mode page data. 4514 */ 4515 if ((lun->be_lun->lun_type != T_DIRECT) 4516 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 4517 continue; 4518 4519 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING && 4520 ((lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) == 0 || 4521 lun->backend->lun_attr == NULL)) 4522 continue; 4523 4524 if (page_index->page_code != prev) { 4525 lun->log_pages.pages_page[j] = page_index->page_code; 4526 prev = page_index->page_code; 4527 j++; 4528 } 4529 lun->log_pages.subpages_page[k*2] = page_index->page_code; 4530 lun->log_pages.subpages_page[k*2+1] = page_index->subpage; 4531 k++; 4532 } 4533 lun->log_pages.index[0].page_data = &lun->log_pages.pages_page[0]; 4534 lun->log_pages.index[0].page_len = j; 4535 lun->log_pages.index[1].page_data = &lun->log_pages.subpages_page[0]; 4536 lun->log_pages.index[1].page_len = k * 2; 4537 lun->log_pages.index[2].page_data = &lun->log_pages.lbp_page[0]; 4538 lun->log_pages.index[2].page_len = 12*CTL_NUM_LBP_PARAMS; 4539 4540 return (CTL_RETVAL_COMPLETE); 4541} 4542 4543static int 4544hex2bin(const char *str, uint8_t *buf, int buf_size) 4545{ 4546 int i; 4547 u_char c; 4548 4549 memset(buf, 0, buf_size); 4550 while (isspace(str[0])) 4551 str++; 4552 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) 4553 str += 2; 4554 buf_size *= 2; 4555 for (i = 0; str[i] != 0 && i < buf_size; i++) { 4556 c = str[i]; 4557 if (isdigit(c)) 4558 c -= '0'; 4559 else if (isalpha(c)) 4560 c -= isupper(c) ? 'A' - 10 : 'a' - 10; 4561 else 4562 break; 4563 if (c >= 16) 4564 break; 4565 if ((i & 1) == 0) 4566 buf[i / 2] |= (c << 4); 4567 else 4568 buf[i / 2] |= c; 4569 } 4570 return ((i + 1) / 2); 4571} 4572 4573/* 4574 * LUN allocation. 4575 * 4576 * Requirements: 4577 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4578 * wants us to allocate the LUN and he can block. 4579 * - ctl_softc is always set 4580 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4581 * 4582 * Returns 0 for success, non-zero (errno) for failure. 4583 */ 4584static int 4585ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4586 struct ctl_be_lun *const be_lun, struct ctl_id target_id) 4587{ 4588 struct ctl_lun *nlun, *lun; 4589 struct ctl_port *port; 4590 struct scsi_vpd_id_descriptor *desc; 4591 struct scsi_vpd_id_t10 *t10id; 4592 const char *eui, *naa, *scsiname, *vendor, *value; 4593 int lun_number, i, lun_malloced; 4594 int devidlen, idlen1, idlen2 = 0, len; 4595 4596 if (be_lun == NULL) 4597 return (EINVAL); 4598 4599 /* 4600 * We currently only support Direct Access or Processor LUN types. 4601 */ 4602 switch (be_lun->lun_type) { 4603 case T_DIRECT: 4604 break; 4605 case T_PROCESSOR: 4606 break; 4607 case T_SEQUENTIAL: 4608 case T_CHANGER: 4609 default: 4610 be_lun->lun_config_status(be_lun->be_lun, 4611 CTL_LUN_CONFIG_FAILURE); 4612 break; 4613 } 4614 if (ctl_lun == NULL) { 4615 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4616 lun_malloced = 1; 4617 } else { 4618 lun_malloced = 0; 4619 lun = ctl_lun; 4620 } 4621 4622 memset(lun, 0, sizeof(*lun)); 4623 if (lun_malloced) 4624 lun->flags = CTL_LUN_MALLOCED; 4625 4626 /* Generate LUN ID. */ 4627 devidlen = max(CTL_DEVID_MIN_LEN, 4628 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4629 idlen1 = sizeof(*t10id) + devidlen; 4630 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4631 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4632 if (scsiname != NULL) { 4633 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4634 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4635 } 4636 eui = ctl_get_opt(&be_lun->options, "eui"); 4637 if (eui != NULL) { 4638 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4639 } 4640 naa = ctl_get_opt(&be_lun->options, "naa"); 4641 if (naa != NULL) { 4642 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4643 } 4644 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4645 M_CTL, M_WAITOK | M_ZERO); 4646 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4647 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4648 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4649 desc->length = idlen1; 4650 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4651 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4652 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4653 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4654 } else { 4655 strncpy(t10id->vendor, vendor, 4656 min(sizeof(t10id->vendor), strlen(vendor))); 4657 } 4658 strncpy((char *)t10id->vendor_spec_id, 4659 (char *)be_lun->device_id, devidlen); 4660 if (scsiname != NULL) { 4661 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4662 desc->length); 4663 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4664 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4665 SVPD_ID_TYPE_SCSI_NAME; 4666 desc->length = idlen2; 4667 strlcpy(desc->identifier, scsiname, idlen2); 4668 } 4669 if (eui != NULL) { 4670 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4671 desc->length); 4672 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4673 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4674 SVPD_ID_TYPE_EUI64; 4675 desc->length = hex2bin(eui, desc->identifier, 16); 4676 desc->length = desc->length > 12 ? 16 : 4677 (desc->length > 8 ? 12 : 8); 4678 len -= 16 - desc->length; 4679 } 4680 if (naa != NULL) { 4681 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4682 desc->length); 4683 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4684 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4685 SVPD_ID_TYPE_NAA; 4686 desc->length = hex2bin(naa, desc->identifier, 16); 4687 desc->length = desc->length > 8 ? 16 : 8; 4688 len -= 16 - desc->length; 4689 } 4690 lun->lun_devid->len = len; 4691 4692 mtx_lock(&ctl_softc->ctl_lock); 4693 /* 4694 * See if the caller requested a particular LUN number. If so, see 4695 * if it is available. Otherwise, allocate the first available LUN. 4696 */ 4697 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4698 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4699 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4700 mtx_unlock(&ctl_softc->ctl_lock); 4701 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4702 printf("ctl: requested LUN ID %d is higher " 4703 "than CTL_MAX_LUNS - 1 (%d)\n", 4704 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4705 } else { 4706 /* 4707 * XXX KDM return an error, or just assign 4708 * another LUN ID in this case?? 4709 */ 4710 printf("ctl: requested LUN ID %d is already " 4711 "in use\n", be_lun->req_lun_id); 4712 } 4713 if (lun->flags & CTL_LUN_MALLOCED) 4714 free(lun, M_CTL); 4715 be_lun->lun_config_status(be_lun->be_lun, 4716 CTL_LUN_CONFIG_FAILURE); 4717 return (ENOSPC); 4718 } 4719 lun_number = be_lun->req_lun_id; 4720 } else { 4721 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, CTL_MAX_LUNS); 4722 if (lun_number == -1) { 4723 mtx_unlock(&ctl_softc->ctl_lock); 4724 printf("ctl: can't allocate LUN on target %ju, out of " 4725 "LUNs\n", (uintmax_t)target_id.id); 4726 if (lun->flags & CTL_LUN_MALLOCED) 4727 free(lun, M_CTL); 4728 be_lun->lun_config_status(be_lun->be_lun, 4729 CTL_LUN_CONFIG_FAILURE); 4730 return (ENOSPC); 4731 } 4732 } 4733 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4734 4735 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4736 lun->target = target_id; 4737 lun->lun = lun_number; 4738 lun->be_lun = be_lun; 4739 /* 4740 * The processor LUN is always enabled. Disk LUNs come on line 4741 * disabled, and must be enabled by the backend. 4742 */ 4743 lun->flags |= CTL_LUN_DISABLED; 4744 lun->backend = be_lun->be; 4745 be_lun->ctl_lun = lun; 4746 be_lun->lun_id = lun_number; 4747 atomic_add_int(&be_lun->be->num_luns, 1); 4748 if (be_lun->flags & CTL_LUN_FLAG_OFFLINE) 4749 lun->flags |= CTL_LUN_OFFLINE; 4750 4751 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4752 lun->flags |= CTL_LUN_STOPPED; 4753 4754 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4755 lun->flags |= CTL_LUN_INOPERABLE; 4756 4757 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4758 lun->flags |= CTL_LUN_PRIMARY_SC; 4759 4760 value = ctl_get_opt(&be_lun->options, "readonly"); 4761 if (value != NULL && strcmp(value, "on") == 0) 4762 lun->flags |= CTL_LUN_READONLY; 4763 4764 lun->ctl_softc = ctl_softc; 4765 TAILQ_INIT(&lun->ooa_queue); 4766 TAILQ_INIT(&lun->blocked_queue); 4767 STAILQ_INIT(&lun->error_list); 4768 ctl_tpc_lun_init(lun); 4769 4770 /* 4771 * Initialize the mode and log page index. 4772 */ 4773 ctl_init_page_index(lun); 4774 ctl_init_log_page_index(lun); 4775 4776 /* 4777 * Set the poweron UA for all initiators on this LUN only. 4778 */ 4779 for (i = 0; i < CTL_MAX_INITIATORS; i++) 4780 lun->pending_ua[i] = CTL_UA_POWERON; 4781 4782 /* 4783 * Now, before we insert this lun on the lun list, set the lun 4784 * inventory changed UA for all other luns. 4785 */ 4786 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4787 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4788 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4789 } 4790 } 4791 4792 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4793 4794 ctl_softc->ctl_luns[lun_number] = lun; 4795 4796 ctl_softc->num_luns++; 4797 4798 /* Setup statistics gathering */ 4799 lun->stats.device_type = be_lun->lun_type; 4800 lun->stats.lun_number = lun_number; 4801 if (lun->stats.device_type == T_DIRECT) 4802 lun->stats.blocksize = be_lun->blocksize; 4803 else 4804 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4805 for (i = 0;i < CTL_MAX_PORTS;i++) 4806 lun->stats.ports[i].targ_port = i; 4807 4808 mtx_unlock(&ctl_softc->ctl_lock); 4809 4810 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4811 4812 /* 4813 * Run through each registered FETD and bring it online if it isn't 4814 * already. Enable the target ID if it hasn't been enabled, and 4815 * enable this particular LUN. 4816 */ 4817 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4818 int retval; 4819 4820 retval = port->lun_enable(port->targ_lun_arg, target_id,lun_number); 4821 if (retval != 0) { 4822 printf("ctl_alloc_lun: FETD %s port %d returned error " 4823 "%d for lun_enable on target %ju lun %d\n", 4824 port->port_name, port->targ_port, retval, 4825 (uintmax_t)target_id.id, lun_number); 4826 } else 4827 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4828 } 4829 return (0); 4830} 4831 4832/* 4833 * Delete a LUN. 4834 * Assumptions: 4835 * - LUN has already been marked invalid and any pending I/O has been taken 4836 * care of. 4837 */ 4838static int 4839ctl_free_lun(struct ctl_lun *lun) 4840{ 4841 struct ctl_softc *softc; 4842#if 0 4843 struct ctl_port *port; 4844#endif 4845 struct ctl_lun *nlun; 4846 int i; 4847 4848 softc = lun->ctl_softc; 4849 4850 mtx_assert(&softc->ctl_lock, MA_OWNED); 4851 4852 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4853 4854 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4855 4856 softc->ctl_luns[lun->lun] = NULL; 4857 4858 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4859 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4860 4861 softc->num_luns--; 4862 4863 /* 4864 * XXX KDM this scheme only works for a single target/multiple LUN 4865 * setup. It needs to be revamped for a multiple target scheme. 4866 * 4867 * XXX KDM this results in port->lun_disable() getting called twice, 4868 * once when ctl_disable_lun() is called, and a second time here. 4869 * We really need to re-think the LUN disable semantics. There 4870 * should probably be several steps/levels to LUN removal: 4871 * - disable 4872 * - invalidate 4873 * - free 4874 * 4875 * Right now we only have a disable method when communicating to 4876 * the front end ports, at least for individual LUNs. 4877 */ 4878#if 0 4879 STAILQ_FOREACH(port, &softc->port_list, links) { 4880 int retval; 4881 4882 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4883 lun->lun); 4884 if (retval != 0) { 4885 printf("ctl_free_lun: FETD %s port %d returned error " 4886 "%d for lun_disable on target %ju lun %jd\n", 4887 port->port_name, port->targ_port, retval, 4888 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4889 } 4890 4891 if (STAILQ_FIRST(&softc->lun_list) == NULL) { 4892 port->status &= ~CTL_PORT_STATUS_LUN_ONLINE; 4893 4894 retval = port->targ_disable(port->targ_lun_arg,lun->target); 4895 if (retval != 0) { 4896 printf("ctl_free_lun: FETD %s port %d " 4897 "returned error %d for targ_disable on " 4898 "target %ju\n", port->port_name, 4899 port->targ_port, retval, 4900 (uintmax_t)lun->target.id); 4901 } else 4902 port->status &= ~CTL_PORT_STATUS_TARG_ONLINE; 4903 4904 if ((port->status & CTL_PORT_STATUS_TARG_ONLINE) != 0) 4905 continue; 4906 4907#if 0 4908 port->port_offline(port->onoff_arg); 4909 port->status &= ~CTL_PORT_STATUS_ONLINE; 4910#endif 4911 } 4912 } 4913#endif 4914 4915 /* 4916 * Tell the backend to free resources, if this LUN has a backend. 4917 */ 4918 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4919 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4920 4921 ctl_tpc_lun_shutdown(lun); 4922 mtx_destroy(&lun->lun_lock); 4923 free(lun->lun_devid, M_CTL); 4924 free(lun->write_buffer, M_CTL); 4925 if (lun->flags & CTL_LUN_MALLOCED) 4926 free(lun, M_CTL); 4927 4928 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4929 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4930 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4931 } 4932 } 4933 4934 return (0); 4935} 4936 4937static void 4938ctl_create_lun(struct ctl_be_lun *be_lun) 4939{ 4940 struct ctl_softc *ctl_softc; 4941 4942 ctl_softc = control_softc; 4943 4944 /* 4945 * ctl_alloc_lun() should handle all potential failure cases. 4946 */ 4947 ctl_alloc_lun(ctl_softc, NULL, be_lun, ctl_softc->target); 4948} 4949 4950int 4951ctl_add_lun(struct ctl_be_lun *be_lun) 4952{ 4953 struct ctl_softc *ctl_softc = control_softc; 4954 4955 mtx_lock(&ctl_softc->ctl_lock); 4956 STAILQ_INSERT_TAIL(&ctl_softc->pending_lun_queue, be_lun, links); 4957 mtx_unlock(&ctl_softc->ctl_lock); 4958 wakeup(&ctl_softc->pending_lun_queue); 4959 4960 return (0); 4961} 4962 4963int 4964ctl_enable_lun(struct ctl_be_lun *be_lun) 4965{ 4966 struct ctl_softc *ctl_softc; 4967 struct ctl_port *port, *nport; 4968 struct ctl_lun *lun; 4969 int retval; 4970 4971 ctl_softc = control_softc; 4972 4973 lun = (struct ctl_lun *)be_lun->ctl_lun; 4974 4975 mtx_lock(&ctl_softc->ctl_lock); 4976 mtx_lock(&lun->lun_lock); 4977 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4978 /* 4979 * eh? Why did we get called if the LUN is already 4980 * enabled? 4981 */ 4982 mtx_unlock(&lun->lun_lock); 4983 mtx_unlock(&ctl_softc->ctl_lock); 4984 return (0); 4985 } 4986 lun->flags &= ~CTL_LUN_DISABLED; 4987 mtx_unlock(&lun->lun_lock); 4988 4989 for (port = STAILQ_FIRST(&ctl_softc->port_list); port != NULL; port = nport) { 4990 nport = STAILQ_NEXT(port, links); 4991 4992 /* 4993 * Drop the lock while we call the FETD's enable routine. 4994 * This can lead to a callback into CTL (at least in the 4995 * case of the internal initiator frontend. 4996 */ 4997 mtx_unlock(&ctl_softc->ctl_lock); 4998 retval = port->lun_enable(port->targ_lun_arg, lun->target,lun->lun); 4999 mtx_lock(&ctl_softc->ctl_lock); 5000 if (retval != 0) { 5001 printf("%s: FETD %s port %d returned error " 5002 "%d for lun_enable on target %ju lun %jd\n", 5003 __func__, port->port_name, port->targ_port, retval, 5004 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 5005 } 5006#if 0 5007 else { 5008 /* NOTE: TODO: why does lun enable affect port status? */ 5009 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 5010 } 5011#endif 5012 } 5013 5014 mtx_unlock(&ctl_softc->ctl_lock); 5015 5016 return (0); 5017} 5018 5019int 5020ctl_disable_lun(struct ctl_be_lun *be_lun) 5021{ 5022 struct ctl_softc *ctl_softc; 5023 struct ctl_port *port; 5024 struct ctl_lun *lun; 5025 int retval; 5026 5027 ctl_softc = control_softc; 5028 5029 lun = (struct ctl_lun *)be_lun->ctl_lun; 5030 5031 mtx_lock(&ctl_softc->ctl_lock); 5032 mtx_lock(&lun->lun_lock); 5033 if (lun->flags & CTL_LUN_DISABLED) { 5034 mtx_unlock(&lun->lun_lock); 5035 mtx_unlock(&ctl_softc->ctl_lock); 5036 return (0); 5037 } 5038 lun->flags |= CTL_LUN_DISABLED; 5039 mtx_unlock(&lun->lun_lock); 5040 5041 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 5042 mtx_unlock(&ctl_softc->ctl_lock); 5043 /* 5044 * Drop the lock before we call the frontend's disable 5045 * routine, to avoid lock order reversals. 5046 * 5047 * XXX KDM what happens if the frontend list changes while 5048 * we're traversing it? It's unlikely, but should be handled. 5049 */ 5050 retval = port->lun_disable(port->targ_lun_arg, lun->target, 5051 lun->lun); 5052 mtx_lock(&ctl_softc->ctl_lock); 5053 if (retval != 0) { 5054 printf("ctl_alloc_lun: FETD %s port %d returned error " 5055 "%d for lun_disable on target %ju lun %jd\n", 5056 port->port_name, port->targ_port, retval, 5057 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 5058 } 5059 } 5060 5061 mtx_unlock(&ctl_softc->ctl_lock); 5062 5063 return (0); 5064} 5065 5066int 5067ctl_start_lun(struct ctl_be_lun *be_lun) 5068{ 5069 struct ctl_softc *ctl_softc; 5070 struct ctl_lun *lun; 5071 5072 ctl_softc = control_softc; 5073 5074 lun = (struct ctl_lun *)be_lun->ctl_lun; 5075 5076 mtx_lock(&lun->lun_lock); 5077 lun->flags &= ~CTL_LUN_STOPPED; 5078 mtx_unlock(&lun->lun_lock); 5079 5080 return (0); 5081} 5082 5083int 5084ctl_stop_lun(struct ctl_be_lun *be_lun) 5085{ 5086 struct ctl_softc *ctl_softc; 5087 struct ctl_lun *lun; 5088 5089 ctl_softc = control_softc; 5090 5091 lun = (struct ctl_lun *)be_lun->ctl_lun; 5092 5093 mtx_lock(&lun->lun_lock); 5094 lun->flags |= CTL_LUN_STOPPED; 5095 mtx_unlock(&lun->lun_lock); 5096 5097 return (0); 5098} 5099 5100int 5101ctl_lun_offline(struct ctl_be_lun *be_lun) 5102{ 5103 struct ctl_softc *ctl_softc; 5104 struct ctl_lun *lun; 5105 5106 ctl_softc = control_softc; 5107 5108 lun = (struct ctl_lun *)be_lun->ctl_lun; 5109 5110 mtx_lock(&lun->lun_lock); 5111 lun->flags |= CTL_LUN_OFFLINE; 5112 mtx_unlock(&lun->lun_lock); 5113 5114 return (0); 5115} 5116 5117int 5118ctl_lun_online(struct ctl_be_lun *be_lun) 5119{ 5120 struct ctl_softc *ctl_softc; 5121 struct ctl_lun *lun; 5122 5123 ctl_softc = control_softc; 5124 5125 lun = (struct ctl_lun *)be_lun->ctl_lun; 5126 5127 mtx_lock(&lun->lun_lock); 5128 lun->flags &= ~CTL_LUN_OFFLINE; 5129 mtx_unlock(&lun->lun_lock); 5130 5131 return (0); 5132} 5133 5134int 5135ctl_invalidate_lun(struct ctl_be_lun *be_lun) 5136{ 5137 struct ctl_softc *ctl_softc; 5138 struct ctl_lun *lun; 5139 5140 ctl_softc = control_softc; 5141 5142 lun = (struct ctl_lun *)be_lun->ctl_lun; 5143 5144 mtx_lock(&lun->lun_lock); 5145 5146 /* 5147 * The LUN needs to be disabled before it can be marked invalid. 5148 */ 5149 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 5150 mtx_unlock(&lun->lun_lock); 5151 return (-1); 5152 } 5153 /* 5154 * Mark the LUN invalid. 5155 */ 5156 lun->flags |= CTL_LUN_INVALID; 5157 5158 /* 5159 * If there is nothing in the OOA queue, go ahead and free the LUN. 5160 * If we have something in the OOA queue, we'll free it when the 5161 * last I/O completes. 5162 */ 5163 if (TAILQ_EMPTY(&lun->ooa_queue)) { 5164 mtx_unlock(&lun->lun_lock); 5165 mtx_lock(&ctl_softc->ctl_lock); 5166 ctl_free_lun(lun); 5167 mtx_unlock(&ctl_softc->ctl_lock); 5168 } else 5169 mtx_unlock(&lun->lun_lock); 5170 5171 return (0); 5172} 5173 5174int 5175ctl_lun_inoperable(struct ctl_be_lun *be_lun) 5176{ 5177 struct ctl_softc *ctl_softc; 5178 struct ctl_lun *lun; 5179 5180 ctl_softc = control_softc; 5181 lun = (struct ctl_lun *)be_lun->ctl_lun; 5182 5183 mtx_lock(&lun->lun_lock); 5184 lun->flags |= CTL_LUN_INOPERABLE; 5185 mtx_unlock(&lun->lun_lock); 5186 5187 return (0); 5188} 5189 5190int 5191ctl_lun_operable(struct ctl_be_lun *be_lun) 5192{ 5193 struct ctl_softc *ctl_softc; 5194 struct ctl_lun *lun; 5195 5196 ctl_softc = control_softc; 5197 lun = (struct ctl_lun *)be_lun->ctl_lun; 5198 5199 mtx_lock(&lun->lun_lock); 5200 lun->flags &= ~CTL_LUN_INOPERABLE; 5201 mtx_unlock(&lun->lun_lock); 5202 5203 return (0); 5204} 5205 5206void 5207ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 5208{ 5209 struct ctl_lun *lun; 5210 struct ctl_softc *softc; 5211 int i; 5212 5213 softc = control_softc; 5214 5215 lun = (struct ctl_lun *)be_lun->ctl_lun; 5216 5217 mtx_lock(&lun->lun_lock); 5218 5219 for (i = 0; i < CTL_MAX_INITIATORS; i++) 5220 lun->pending_ua[i] |= CTL_UA_CAPACITY_CHANGED; 5221 5222 mtx_unlock(&lun->lun_lock); 5223} 5224 5225/* 5226 * Backend "memory move is complete" callback for requests that never 5227 * make it down to say RAIDCore's configuration code. 5228 */ 5229int 5230ctl_config_move_done(union ctl_io *io) 5231{ 5232 int retval; 5233 5234 retval = CTL_RETVAL_COMPLETE; 5235 5236 5237 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 5238 /* 5239 * XXX KDM this shouldn't happen, but what if it does? 5240 */ 5241 if (io->io_hdr.io_type != CTL_IO_SCSI) 5242 panic("I/O type isn't CTL_IO_SCSI!"); 5243 5244 if ((io->io_hdr.port_status == 0) 5245 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5246 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)) 5247 io->io_hdr.status = CTL_SUCCESS; 5248 else if ((io->io_hdr.port_status != 0) 5249 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5250 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)){ 5251 /* 5252 * For hardware error sense keys, the sense key 5253 * specific value is defined to be a retry count, 5254 * but we use it to pass back an internal FETD 5255 * error code. XXX KDM Hopefully the FETD is only 5256 * using 16 bits for an error code, since that's 5257 * all the space we have in the sks field. 5258 */ 5259 ctl_set_internal_failure(&io->scsiio, 5260 /*sks_valid*/ 1, 5261 /*retry_count*/ 5262 io->io_hdr.port_status); 5263 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5264 free(io->scsiio.kern_data_ptr, M_CTL); 5265 ctl_done(io); 5266 goto bailout; 5267 } 5268 5269 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 5270 || ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 5271 || ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5272 /* 5273 * XXX KDM just assuming a single pointer here, and not a 5274 * S/G list. If we start using S/G lists for config data, 5275 * we'll need to know how to clean them up here as well. 5276 */ 5277 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5278 free(io->scsiio.kern_data_ptr, M_CTL); 5279 /* Hopefully the user has already set the status... */ 5280 ctl_done(io); 5281 } else { 5282 /* 5283 * XXX KDM now we need to continue data movement. Some 5284 * options: 5285 * - call ctl_scsiio() again? We don't do this for data 5286 * writes, because for those at least we know ahead of 5287 * time where the write will go and how long it is. For 5288 * config writes, though, that information is largely 5289 * contained within the write itself, thus we need to 5290 * parse out the data again. 5291 * 5292 * - Call some other function once the data is in? 5293 */ 5294 if (ctl_debug & CTL_DEBUG_CDB_DATA) 5295 ctl_data_print(io); 5296 5297 /* 5298 * XXX KDM call ctl_scsiio() again for now, and check flag 5299 * bits to see whether we're allocated or not. 5300 */ 5301 retval = ctl_scsiio(&io->scsiio); 5302 } 5303bailout: 5304 return (retval); 5305} 5306 5307/* 5308 * This gets called by a backend driver when it is done with a 5309 * data_submit method. 5310 */ 5311void 5312ctl_data_submit_done(union ctl_io *io) 5313{ 5314 /* 5315 * If the IO_CONT flag is set, we need to call the supplied 5316 * function to continue processing the I/O, instead of completing 5317 * the I/O just yet. 5318 * 5319 * If there is an error, though, we don't want to keep processing. 5320 * Instead, just send status back to the initiator. 5321 */ 5322 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5323 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5324 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5325 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5326 io->scsiio.io_cont(io); 5327 return; 5328 } 5329 ctl_done(io); 5330} 5331 5332/* 5333 * This gets called by a backend driver when it is done with a 5334 * configuration write. 5335 */ 5336void 5337ctl_config_write_done(union ctl_io *io) 5338{ 5339 uint8_t *buf; 5340 5341 /* 5342 * If the IO_CONT flag is set, we need to call the supplied 5343 * function to continue processing the I/O, instead of completing 5344 * the I/O just yet. 5345 * 5346 * If there is an error, though, we don't want to keep processing. 5347 * Instead, just send status back to the initiator. 5348 */ 5349 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5350 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5351 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5352 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5353 io->scsiio.io_cont(io); 5354 return; 5355 } 5356 /* 5357 * Since a configuration write can be done for commands that actually 5358 * have data allocated, like write buffer, and commands that have 5359 * no data, like start/stop unit, we need to check here. 5360 */ 5361 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5362 buf = io->scsiio.kern_data_ptr; 5363 else 5364 buf = NULL; 5365 ctl_done(io); 5366 if (buf) 5367 free(buf, M_CTL); 5368} 5369 5370/* 5371 * SCSI release command. 5372 */ 5373int 5374ctl_scsi_release(struct ctl_scsiio *ctsio) 5375{ 5376 int length, longid, thirdparty_id, resv_id; 5377 struct ctl_softc *ctl_softc; 5378 struct ctl_lun *lun; 5379 uint32_t residx; 5380 5381 length = 0; 5382 resv_id = 0; 5383 5384 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5385 5386 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5387 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5388 ctl_softc = control_softc; 5389 5390 switch (ctsio->cdb[0]) { 5391 case RELEASE_10: { 5392 struct scsi_release_10 *cdb; 5393 5394 cdb = (struct scsi_release_10 *)ctsio->cdb; 5395 5396 if (cdb->byte2 & SR10_LONGID) 5397 longid = 1; 5398 else 5399 thirdparty_id = cdb->thirdparty_id; 5400 5401 resv_id = cdb->resv_id; 5402 length = scsi_2btoul(cdb->length); 5403 break; 5404 } 5405 } 5406 5407 5408 /* 5409 * XXX KDM right now, we only support LUN reservation. We don't 5410 * support 3rd party reservations, or extent reservations, which 5411 * might actually need the parameter list. If we've gotten this 5412 * far, we've got a LUN reservation. Anything else got kicked out 5413 * above. So, according to SPC, ignore the length. 5414 */ 5415 length = 0; 5416 5417 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5418 && (length > 0)) { 5419 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5420 ctsio->kern_data_len = length; 5421 ctsio->kern_total_len = length; 5422 ctsio->kern_data_resid = 0; 5423 ctsio->kern_rel_offset = 0; 5424 ctsio->kern_sg_entries = 0; 5425 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5426 ctsio->be_move_done = ctl_config_move_done; 5427 ctl_datamove((union ctl_io *)ctsio); 5428 5429 return (CTL_RETVAL_COMPLETE); 5430 } 5431 5432 if (length > 0) 5433 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5434 5435 mtx_lock(&lun->lun_lock); 5436 5437 /* 5438 * According to SPC, it is not an error for an intiator to attempt 5439 * to release a reservation on a LUN that isn't reserved, or that 5440 * is reserved by another initiator. The reservation can only be 5441 * released, though, by the initiator who made it or by one of 5442 * several reset type events. 5443 */ 5444 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5445 lun->flags &= ~CTL_LUN_RESERVED; 5446 5447 mtx_unlock(&lun->lun_lock); 5448 5449 ctsio->scsi_status = SCSI_STATUS_OK; 5450 ctsio->io_hdr.status = CTL_SUCCESS; 5451 5452 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5453 free(ctsio->kern_data_ptr, M_CTL); 5454 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5455 } 5456 5457 ctl_done((union ctl_io *)ctsio); 5458 return (CTL_RETVAL_COMPLETE); 5459} 5460 5461int 5462ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5463{ 5464 int extent, thirdparty, longid; 5465 int resv_id, length; 5466 uint64_t thirdparty_id; 5467 struct ctl_softc *ctl_softc; 5468 struct ctl_lun *lun; 5469 uint32_t residx; 5470 5471 extent = 0; 5472 thirdparty = 0; 5473 longid = 0; 5474 resv_id = 0; 5475 length = 0; 5476 thirdparty_id = 0; 5477 5478 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5479 5480 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5481 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5482 ctl_softc = control_softc; 5483 5484 switch (ctsio->cdb[0]) { 5485 case RESERVE_10: { 5486 struct scsi_reserve_10 *cdb; 5487 5488 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 5489 5490 if (cdb->byte2 & SR10_LONGID) 5491 longid = 1; 5492 else 5493 thirdparty_id = cdb->thirdparty_id; 5494 5495 resv_id = cdb->resv_id; 5496 length = scsi_2btoul(cdb->length); 5497 break; 5498 } 5499 } 5500 5501 /* 5502 * XXX KDM right now, we only support LUN reservation. We don't 5503 * support 3rd party reservations, or extent reservations, which 5504 * might actually need the parameter list. If we've gotten this 5505 * far, we've got a LUN reservation. Anything else got kicked out 5506 * above. So, according to SPC, ignore the length. 5507 */ 5508 length = 0; 5509 5510 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5511 && (length > 0)) { 5512 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5513 ctsio->kern_data_len = length; 5514 ctsio->kern_total_len = length; 5515 ctsio->kern_data_resid = 0; 5516 ctsio->kern_rel_offset = 0; 5517 ctsio->kern_sg_entries = 0; 5518 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5519 ctsio->be_move_done = ctl_config_move_done; 5520 ctl_datamove((union ctl_io *)ctsio); 5521 5522 return (CTL_RETVAL_COMPLETE); 5523 } 5524 5525 if (length > 0) 5526 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5527 5528 mtx_lock(&lun->lun_lock); 5529 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5530 ctl_set_reservation_conflict(ctsio); 5531 goto bailout; 5532 } 5533 5534 lun->flags |= CTL_LUN_RESERVED; 5535 lun->res_idx = residx; 5536 5537 ctsio->scsi_status = SCSI_STATUS_OK; 5538 ctsio->io_hdr.status = CTL_SUCCESS; 5539 5540bailout: 5541 mtx_unlock(&lun->lun_lock); 5542 5543 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5544 free(ctsio->kern_data_ptr, M_CTL); 5545 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5546 } 5547 5548 ctl_done((union ctl_io *)ctsio); 5549 return (CTL_RETVAL_COMPLETE); 5550} 5551 5552int 5553ctl_start_stop(struct ctl_scsiio *ctsio) 5554{ 5555 struct scsi_start_stop_unit *cdb; 5556 struct ctl_lun *lun; 5557 struct ctl_softc *ctl_softc; 5558 int retval; 5559 5560 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5561 5562 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5563 ctl_softc = control_softc; 5564 retval = 0; 5565 5566 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5567 5568 /* 5569 * XXX KDM 5570 * We don't support the immediate bit on a stop unit. In order to 5571 * do that, we would need to code up a way to know that a stop is 5572 * pending, and hold off any new commands until it completes, one 5573 * way or another. Then we could accept or reject those commands 5574 * depending on its status. We would almost need to do the reverse 5575 * of what we do below for an immediate start -- return the copy of 5576 * the ctl_io to the FETD with status to send to the host (and to 5577 * free the copy!) and then free the original I/O once the stop 5578 * actually completes. That way, the OOA queue mechanism can work 5579 * to block commands that shouldn't proceed. Another alternative 5580 * would be to put the copy in the queue in place of the original, 5581 * and return the original back to the caller. That could be 5582 * slightly safer.. 5583 */ 5584 if ((cdb->byte2 & SSS_IMMED) 5585 && ((cdb->how & SSS_START) == 0)) { 5586 ctl_set_invalid_field(ctsio, 5587 /*sks_valid*/ 1, 5588 /*command*/ 1, 5589 /*field*/ 1, 5590 /*bit_valid*/ 1, 5591 /*bit*/ 0); 5592 ctl_done((union ctl_io *)ctsio); 5593 return (CTL_RETVAL_COMPLETE); 5594 } 5595 5596 if ((lun->flags & CTL_LUN_PR_RESERVED) 5597 && ((cdb->how & SSS_START)==0)) { 5598 uint32_t residx; 5599 5600 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5601 if (lun->pr_keys[residx] == 0 5602 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5603 5604 ctl_set_reservation_conflict(ctsio); 5605 ctl_done((union ctl_io *)ctsio); 5606 return (CTL_RETVAL_COMPLETE); 5607 } 5608 } 5609 5610 /* 5611 * If there is no backend on this device, we can't start or stop 5612 * it. In theory we shouldn't get any start/stop commands in the 5613 * first place at this level if the LUN doesn't have a backend. 5614 * That should get stopped by the command decode code. 5615 */ 5616 if (lun->backend == NULL) { 5617 ctl_set_invalid_opcode(ctsio); 5618 ctl_done((union ctl_io *)ctsio); 5619 return (CTL_RETVAL_COMPLETE); 5620 } 5621 5622 /* 5623 * XXX KDM Copan-specific offline behavior. 5624 * Figure out a reasonable way to port this? 5625 */ 5626#ifdef NEEDTOPORT 5627 mtx_lock(&lun->lun_lock); 5628 5629 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5630 && (lun->flags & CTL_LUN_OFFLINE)) { 5631 /* 5632 * If the LUN is offline, and the on/offline bit isn't set, 5633 * reject the start or stop. Otherwise, let it through. 5634 */ 5635 mtx_unlock(&lun->lun_lock); 5636 ctl_set_lun_not_ready(ctsio); 5637 ctl_done((union ctl_io *)ctsio); 5638 } else { 5639 mtx_unlock(&lun->lun_lock); 5640#endif /* NEEDTOPORT */ 5641 /* 5642 * This could be a start or a stop when we're online, 5643 * or a stop/offline or start/online. A start or stop when 5644 * we're offline is covered in the case above. 5645 */ 5646 /* 5647 * In the non-immediate case, we send the request to 5648 * the backend and return status to the user when 5649 * it is done. 5650 * 5651 * In the immediate case, we allocate a new ctl_io 5652 * to hold a copy of the request, and send that to 5653 * the backend. We then set good status on the 5654 * user's request and return it immediately. 5655 */ 5656 if (cdb->byte2 & SSS_IMMED) { 5657 union ctl_io *new_io; 5658 5659 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5660 if (new_io == NULL) { 5661 ctl_set_busy(ctsio); 5662 ctl_done((union ctl_io *)ctsio); 5663 } else { 5664 ctl_copy_io((union ctl_io *)ctsio, 5665 new_io); 5666 retval = lun->backend->config_write(new_io); 5667 ctl_set_success(ctsio); 5668 ctl_done((union ctl_io *)ctsio); 5669 } 5670 } else { 5671 retval = lun->backend->config_write( 5672 (union ctl_io *)ctsio); 5673 } 5674#ifdef NEEDTOPORT 5675 } 5676#endif 5677 return (retval); 5678} 5679 5680/* 5681 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5682 * we don't really do anything with the LBA and length fields if the user 5683 * passes them in. Instead we'll just flush out the cache for the entire 5684 * LUN. 5685 */ 5686int 5687ctl_sync_cache(struct ctl_scsiio *ctsio) 5688{ 5689 struct ctl_lun *lun; 5690 struct ctl_softc *ctl_softc; 5691 uint64_t starting_lba; 5692 uint32_t block_count; 5693 int retval; 5694 5695 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5696 5697 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5698 ctl_softc = control_softc; 5699 retval = 0; 5700 5701 switch (ctsio->cdb[0]) { 5702 case SYNCHRONIZE_CACHE: { 5703 struct scsi_sync_cache *cdb; 5704 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5705 5706 starting_lba = scsi_4btoul(cdb->begin_lba); 5707 block_count = scsi_2btoul(cdb->lb_count); 5708 break; 5709 } 5710 case SYNCHRONIZE_CACHE_16: { 5711 struct scsi_sync_cache_16 *cdb; 5712 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5713 5714 starting_lba = scsi_8btou64(cdb->begin_lba); 5715 block_count = scsi_4btoul(cdb->lb_count); 5716 break; 5717 } 5718 default: 5719 ctl_set_invalid_opcode(ctsio); 5720 ctl_done((union ctl_io *)ctsio); 5721 goto bailout; 5722 break; /* NOTREACHED */ 5723 } 5724 5725 /* 5726 * We check the LBA and length, but don't do anything with them. 5727 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5728 * get flushed. This check will just help satisfy anyone who wants 5729 * to see an error for an out of range LBA. 5730 */ 5731 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5732 ctl_set_lba_out_of_range(ctsio); 5733 ctl_done((union ctl_io *)ctsio); 5734 goto bailout; 5735 } 5736 5737 /* 5738 * If this LUN has no backend, we can't flush the cache anyway. 5739 */ 5740 if (lun->backend == NULL) { 5741 ctl_set_invalid_opcode(ctsio); 5742 ctl_done((union ctl_io *)ctsio); 5743 goto bailout; 5744 } 5745 5746 /* 5747 * Check to see whether we're configured to send the SYNCHRONIZE 5748 * CACHE command directly to the back end. 5749 */ 5750 mtx_lock(&lun->lun_lock); 5751 if ((ctl_softc->flags & CTL_FLAG_REAL_SYNC) 5752 && (++(lun->sync_count) >= lun->sync_interval)) { 5753 lun->sync_count = 0; 5754 mtx_unlock(&lun->lun_lock); 5755 retval = lun->backend->config_write((union ctl_io *)ctsio); 5756 } else { 5757 mtx_unlock(&lun->lun_lock); 5758 ctl_set_success(ctsio); 5759 ctl_done((union ctl_io *)ctsio); 5760 } 5761 5762bailout: 5763 5764 return (retval); 5765} 5766 5767int 5768ctl_format(struct ctl_scsiio *ctsio) 5769{ 5770 struct scsi_format *cdb; 5771 struct ctl_lun *lun; 5772 struct ctl_softc *ctl_softc; 5773 int length, defect_list_len; 5774 5775 CTL_DEBUG_PRINT(("ctl_format\n")); 5776 5777 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5778 ctl_softc = control_softc; 5779 5780 cdb = (struct scsi_format *)ctsio->cdb; 5781 5782 length = 0; 5783 if (cdb->byte2 & SF_FMTDATA) { 5784 if (cdb->byte2 & SF_LONGLIST) 5785 length = sizeof(struct scsi_format_header_long); 5786 else 5787 length = sizeof(struct scsi_format_header_short); 5788 } 5789 5790 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5791 && (length > 0)) { 5792 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5793 ctsio->kern_data_len = length; 5794 ctsio->kern_total_len = length; 5795 ctsio->kern_data_resid = 0; 5796 ctsio->kern_rel_offset = 0; 5797 ctsio->kern_sg_entries = 0; 5798 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5799 ctsio->be_move_done = ctl_config_move_done; 5800 ctl_datamove((union ctl_io *)ctsio); 5801 5802 return (CTL_RETVAL_COMPLETE); 5803 } 5804 5805 defect_list_len = 0; 5806 5807 if (cdb->byte2 & SF_FMTDATA) { 5808 if (cdb->byte2 & SF_LONGLIST) { 5809 struct scsi_format_header_long *header; 5810 5811 header = (struct scsi_format_header_long *) 5812 ctsio->kern_data_ptr; 5813 5814 defect_list_len = scsi_4btoul(header->defect_list_len); 5815 if (defect_list_len != 0) { 5816 ctl_set_invalid_field(ctsio, 5817 /*sks_valid*/ 1, 5818 /*command*/ 0, 5819 /*field*/ 2, 5820 /*bit_valid*/ 0, 5821 /*bit*/ 0); 5822 goto bailout; 5823 } 5824 } else { 5825 struct scsi_format_header_short *header; 5826 5827 header = (struct scsi_format_header_short *) 5828 ctsio->kern_data_ptr; 5829 5830 defect_list_len = scsi_2btoul(header->defect_list_len); 5831 if (defect_list_len != 0) { 5832 ctl_set_invalid_field(ctsio, 5833 /*sks_valid*/ 1, 5834 /*command*/ 0, 5835 /*field*/ 2, 5836 /*bit_valid*/ 0, 5837 /*bit*/ 0); 5838 goto bailout; 5839 } 5840 } 5841 } 5842 5843 /* 5844 * The format command will clear out the "Medium format corrupted" 5845 * status if set by the configuration code. That status is really 5846 * just a way to notify the host that we have lost the media, and 5847 * get them to issue a command that will basically make them think 5848 * they're blowing away the media. 5849 */ 5850 mtx_lock(&lun->lun_lock); 5851 lun->flags &= ~CTL_LUN_INOPERABLE; 5852 mtx_unlock(&lun->lun_lock); 5853 5854 ctsio->scsi_status = SCSI_STATUS_OK; 5855 ctsio->io_hdr.status = CTL_SUCCESS; 5856bailout: 5857 5858 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5859 free(ctsio->kern_data_ptr, M_CTL); 5860 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5861 } 5862 5863 ctl_done((union ctl_io *)ctsio); 5864 return (CTL_RETVAL_COMPLETE); 5865} 5866 5867int 5868ctl_read_buffer(struct ctl_scsiio *ctsio) 5869{ 5870 struct scsi_read_buffer *cdb; 5871 struct ctl_lun *lun; 5872 int buffer_offset, len; 5873 static uint8_t descr[4]; 5874 static uint8_t echo_descr[4] = { 0 }; 5875 5876 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5877 5878 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5879 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5880 5881 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA && 5882 (cdb->byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5883 (cdb->byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5884 ctl_set_invalid_field(ctsio, 5885 /*sks_valid*/ 1, 5886 /*command*/ 1, 5887 /*field*/ 1, 5888 /*bit_valid*/ 1, 5889 /*bit*/ 4); 5890 ctl_done((union ctl_io *)ctsio); 5891 return (CTL_RETVAL_COMPLETE); 5892 } 5893 5894 len = scsi_3btoul(cdb->length); 5895 buffer_offset = scsi_3btoul(cdb->offset); 5896 5897 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5898 ctl_set_invalid_field(ctsio, 5899 /*sks_valid*/ 1, 5900 /*command*/ 1, 5901 /*field*/ 6, 5902 /*bit_valid*/ 0, 5903 /*bit*/ 0); 5904 ctl_done((union ctl_io *)ctsio); 5905 return (CTL_RETVAL_COMPLETE); 5906 } 5907 5908 if ((cdb->byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5909 descr[0] = 0; 5910 scsi_ulto3b(CTL_WRITE_BUFFER_SIZE, &descr[1]); 5911 ctsio->kern_data_ptr = descr; 5912 len = min(len, sizeof(descr)); 5913 } else if ((cdb->byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5914 ctsio->kern_data_ptr = echo_descr; 5915 len = min(len, sizeof(echo_descr)); 5916 } else { 5917 if (lun->write_buffer == NULL) { 5918 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5919 M_CTL, M_WAITOK); 5920 } 5921 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5922 } 5923 ctsio->kern_data_len = len; 5924 ctsio->kern_total_len = len; 5925 ctsio->kern_data_resid = 0; 5926 ctsio->kern_rel_offset = 0; 5927 ctsio->kern_sg_entries = 0; 5928 ctsio->be_move_done = ctl_config_move_done; 5929 ctl_datamove((union ctl_io *)ctsio); 5930 5931 return (CTL_RETVAL_COMPLETE); 5932} 5933 5934int 5935ctl_write_buffer(struct ctl_scsiio *ctsio) 5936{ 5937 struct scsi_write_buffer *cdb; 5938 struct ctl_lun *lun; 5939 int buffer_offset, len; 5940 5941 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5942 5943 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5944 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5945 5946 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5947 ctl_set_invalid_field(ctsio, 5948 /*sks_valid*/ 1, 5949 /*command*/ 1, 5950 /*field*/ 1, 5951 /*bit_valid*/ 1, 5952 /*bit*/ 4); 5953 ctl_done((union ctl_io *)ctsio); 5954 return (CTL_RETVAL_COMPLETE); 5955 } 5956 5957 len = scsi_3btoul(cdb->length); 5958 buffer_offset = scsi_3btoul(cdb->offset); 5959 5960 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5961 ctl_set_invalid_field(ctsio, 5962 /*sks_valid*/ 1, 5963 /*command*/ 1, 5964 /*field*/ 6, 5965 /*bit_valid*/ 0, 5966 /*bit*/ 0); 5967 ctl_done((union ctl_io *)ctsio); 5968 return (CTL_RETVAL_COMPLETE); 5969 } 5970 5971 /* 5972 * If we've got a kernel request that hasn't been malloced yet, 5973 * malloc it and tell the caller the data buffer is here. 5974 */ 5975 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5976 if (lun->write_buffer == NULL) { 5977 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5978 M_CTL, M_WAITOK); 5979 } 5980 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5981 ctsio->kern_data_len = len; 5982 ctsio->kern_total_len = len; 5983 ctsio->kern_data_resid = 0; 5984 ctsio->kern_rel_offset = 0; 5985 ctsio->kern_sg_entries = 0; 5986 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5987 ctsio->be_move_done = ctl_config_move_done; 5988 ctl_datamove((union ctl_io *)ctsio); 5989 5990 return (CTL_RETVAL_COMPLETE); 5991 } 5992 5993 ctl_done((union ctl_io *)ctsio); 5994 5995 return (CTL_RETVAL_COMPLETE); 5996} 5997 5998int 5999ctl_write_same(struct ctl_scsiio *ctsio) 6000{ 6001 struct ctl_lun *lun; 6002 struct ctl_lba_len_flags *lbalen; 6003 uint64_t lba; 6004 uint32_t num_blocks; 6005 int len, retval; 6006 uint8_t byte2; 6007 6008 retval = CTL_RETVAL_COMPLETE; 6009 6010 CTL_DEBUG_PRINT(("ctl_write_same\n")); 6011 6012 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6013 6014 switch (ctsio->cdb[0]) { 6015 case WRITE_SAME_10: { 6016 struct scsi_write_same_10 *cdb; 6017 6018 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 6019 6020 lba = scsi_4btoul(cdb->addr); 6021 num_blocks = scsi_2btoul(cdb->length); 6022 byte2 = cdb->byte2; 6023 break; 6024 } 6025 case WRITE_SAME_16: { 6026 struct scsi_write_same_16 *cdb; 6027 6028 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 6029 6030 lba = scsi_8btou64(cdb->addr); 6031 num_blocks = scsi_4btoul(cdb->length); 6032 byte2 = cdb->byte2; 6033 break; 6034 } 6035 default: 6036 /* 6037 * We got a command we don't support. This shouldn't 6038 * happen, commands should be filtered out above us. 6039 */ 6040 ctl_set_invalid_opcode(ctsio); 6041 ctl_done((union ctl_io *)ctsio); 6042 6043 return (CTL_RETVAL_COMPLETE); 6044 break; /* NOTREACHED */ 6045 } 6046 6047 /* NDOB and ANCHOR flags can be used only together with UNMAP */ 6048 if ((byte2 & SWS_UNMAP) == 0 && 6049 (byte2 & (SWS_NDOB | SWS_ANCHOR)) != 0) { 6050 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 6051 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 6052 ctl_done((union ctl_io *)ctsio); 6053 return (CTL_RETVAL_COMPLETE); 6054 } 6055 6056 /* 6057 * The first check is to make sure we're in bounds, the second 6058 * check is to catch wrap-around problems. If the lba + num blocks 6059 * is less than the lba, then we've wrapped around and the block 6060 * range is invalid anyway. 6061 */ 6062 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 6063 || ((lba + num_blocks) < lba)) { 6064 ctl_set_lba_out_of_range(ctsio); 6065 ctl_done((union ctl_io *)ctsio); 6066 return (CTL_RETVAL_COMPLETE); 6067 } 6068 6069 /* Zero number of blocks means "to the last logical block" */ 6070 if (num_blocks == 0) { 6071 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 6072 ctl_set_invalid_field(ctsio, 6073 /*sks_valid*/ 0, 6074 /*command*/ 1, 6075 /*field*/ 0, 6076 /*bit_valid*/ 0, 6077 /*bit*/ 0); 6078 ctl_done((union ctl_io *)ctsio); 6079 return (CTL_RETVAL_COMPLETE); 6080 } 6081 num_blocks = (lun->be_lun->maxlba + 1) - lba; 6082 } 6083 6084 len = lun->be_lun->blocksize; 6085 6086 /* 6087 * If we've got a kernel request that hasn't been malloced yet, 6088 * malloc it and tell the caller the data buffer is here. 6089 */ 6090 if ((byte2 & SWS_NDOB) == 0 && 6091 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6092 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6093 ctsio->kern_data_len = len; 6094 ctsio->kern_total_len = len; 6095 ctsio->kern_data_resid = 0; 6096 ctsio->kern_rel_offset = 0; 6097 ctsio->kern_sg_entries = 0; 6098 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6099 ctsio->be_move_done = ctl_config_move_done; 6100 ctl_datamove((union ctl_io *)ctsio); 6101 6102 return (CTL_RETVAL_COMPLETE); 6103 } 6104 6105 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6106 lbalen->lba = lba; 6107 lbalen->len = num_blocks; 6108 lbalen->flags = byte2; 6109 retval = lun->backend->config_write((union ctl_io *)ctsio); 6110 6111 return (retval); 6112} 6113 6114int 6115ctl_unmap(struct ctl_scsiio *ctsio) 6116{ 6117 struct ctl_lun *lun; 6118 struct scsi_unmap *cdb; 6119 struct ctl_ptr_len_flags *ptrlen; 6120 struct scsi_unmap_header *hdr; 6121 struct scsi_unmap_desc *buf, *end, *endnz, *range; 6122 uint64_t lba; 6123 uint32_t num_blocks; 6124 int len, retval; 6125 uint8_t byte2; 6126 6127 retval = CTL_RETVAL_COMPLETE; 6128 6129 CTL_DEBUG_PRINT(("ctl_unmap\n")); 6130 6131 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6132 cdb = (struct scsi_unmap *)ctsio->cdb; 6133 6134 len = scsi_2btoul(cdb->length); 6135 byte2 = cdb->byte2; 6136 6137 /* 6138 * If we've got a kernel request that hasn't been malloced yet, 6139 * malloc it and tell the caller the data buffer is here. 6140 */ 6141 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6142 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6143 ctsio->kern_data_len = len; 6144 ctsio->kern_total_len = len; 6145 ctsio->kern_data_resid = 0; 6146 ctsio->kern_rel_offset = 0; 6147 ctsio->kern_sg_entries = 0; 6148 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6149 ctsio->be_move_done = ctl_config_move_done; 6150 ctl_datamove((union ctl_io *)ctsio); 6151 6152 return (CTL_RETVAL_COMPLETE); 6153 } 6154 6155 len = ctsio->kern_total_len - ctsio->kern_data_resid; 6156 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 6157 if (len < sizeof (*hdr) || 6158 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 6159 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 6160 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 6161 ctl_set_invalid_field(ctsio, 6162 /*sks_valid*/ 0, 6163 /*command*/ 0, 6164 /*field*/ 0, 6165 /*bit_valid*/ 0, 6166 /*bit*/ 0); 6167 ctl_done((union ctl_io *)ctsio); 6168 return (CTL_RETVAL_COMPLETE); 6169 } 6170 len = scsi_2btoul(hdr->desc_length); 6171 buf = (struct scsi_unmap_desc *)(hdr + 1); 6172 end = buf + len / sizeof(*buf); 6173 6174 endnz = buf; 6175 for (range = buf; range < end; range++) { 6176 lba = scsi_8btou64(range->lba); 6177 num_blocks = scsi_4btoul(range->length); 6178 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 6179 || ((lba + num_blocks) < lba)) { 6180 ctl_set_lba_out_of_range(ctsio); 6181 ctl_done((union ctl_io *)ctsio); 6182 return (CTL_RETVAL_COMPLETE); 6183 } 6184 if (num_blocks != 0) 6185 endnz = range + 1; 6186 } 6187 6188 /* 6189 * Block backend can not handle zero last range. 6190 * Filter it out and return if there is nothing left. 6191 */ 6192 len = (uint8_t *)endnz - (uint8_t *)buf; 6193 if (len == 0) { 6194 ctl_set_success(ctsio); 6195 ctl_done((union ctl_io *)ctsio); 6196 return (CTL_RETVAL_COMPLETE); 6197 } 6198 6199 mtx_lock(&lun->lun_lock); 6200 ptrlen = (struct ctl_ptr_len_flags *) 6201 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6202 ptrlen->ptr = (void *)buf; 6203 ptrlen->len = len; 6204 ptrlen->flags = byte2; 6205 ctl_check_blocked(lun); 6206 mtx_unlock(&lun->lun_lock); 6207 6208 retval = lun->backend->config_write((union ctl_io *)ctsio); 6209 return (retval); 6210} 6211 6212/* 6213 * Note that this function currently doesn't actually do anything inside 6214 * CTL to enforce things if the DQue bit is turned on. 6215 * 6216 * Also note that this function can't be used in the default case, because 6217 * the DQue bit isn't set in the changeable mask for the control mode page 6218 * anyway. This is just here as an example for how to implement a page 6219 * handler, and a placeholder in case we want to allow the user to turn 6220 * tagged queueing on and off. 6221 * 6222 * The D_SENSE bit handling is functional, however, and will turn 6223 * descriptor sense on and off for a given LUN. 6224 */ 6225int 6226ctl_control_page_handler(struct ctl_scsiio *ctsio, 6227 struct ctl_page_index *page_index, uint8_t *page_ptr) 6228{ 6229 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 6230 struct ctl_lun *lun; 6231 struct ctl_softc *softc; 6232 int set_ua; 6233 uint32_t initidx; 6234 6235 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6236 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6237 set_ua = 0; 6238 6239 user_cp = (struct scsi_control_page *)page_ptr; 6240 current_cp = (struct scsi_control_page *) 6241 (page_index->page_data + (page_index->page_len * 6242 CTL_PAGE_CURRENT)); 6243 saved_cp = (struct scsi_control_page *) 6244 (page_index->page_data + (page_index->page_len * 6245 CTL_PAGE_SAVED)); 6246 6247 softc = control_softc; 6248 6249 mtx_lock(&lun->lun_lock); 6250 if (((current_cp->rlec & SCP_DSENSE) == 0) 6251 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 6252 /* 6253 * Descriptor sense is currently turned off and the user 6254 * wants to turn it on. 6255 */ 6256 current_cp->rlec |= SCP_DSENSE; 6257 saved_cp->rlec |= SCP_DSENSE; 6258 lun->flags |= CTL_LUN_SENSE_DESC; 6259 set_ua = 1; 6260 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 6261 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 6262 /* 6263 * Descriptor sense is currently turned on, and the user 6264 * wants to turn it off. 6265 */ 6266 current_cp->rlec &= ~SCP_DSENSE; 6267 saved_cp->rlec &= ~SCP_DSENSE; 6268 lun->flags &= ~CTL_LUN_SENSE_DESC; 6269 set_ua = 1; 6270 } 6271 if ((current_cp->queue_flags & SCP_QUEUE_ALG_MASK) != 6272 (user_cp->queue_flags & SCP_QUEUE_ALG_MASK)) { 6273 current_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6274 current_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6275 saved_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6276 saved_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6277 set_ua = 1; 6278 } 6279 if ((current_cp->eca_and_aen & SCP_SWP) != 6280 (user_cp->eca_and_aen & SCP_SWP)) { 6281 current_cp->eca_and_aen &= ~SCP_SWP; 6282 current_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6283 saved_cp->eca_and_aen &= ~SCP_SWP; 6284 saved_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6285 set_ua = 1; 6286 } 6287 if (set_ua != 0) { 6288 int i; 6289 /* 6290 * Let other initiators know that the mode 6291 * parameters for this LUN have changed. 6292 */ 6293 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6294 if (i == initidx) 6295 continue; 6296 6297 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6298 } 6299 } 6300 mtx_unlock(&lun->lun_lock); 6301 6302 return (0); 6303} 6304 6305int 6306ctl_caching_sp_handler(struct ctl_scsiio *ctsio, 6307 struct ctl_page_index *page_index, uint8_t *page_ptr) 6308{ 6309 struct scsi_caching_page *current_cp, *saved_cp, *user_cp; 6310 struct ctl_lun *lun; 6311 int set_ua; 6312 uint32_t initidx; 6313 6314 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6315 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6316 set_ua = 0; 6317 6318 user_cp = (struct scsi_caching_page *)page_ptr; 6319 current_cp = (struct scsi_caching_page *) 6320 (page_index->page_data + (page_index->page_len * 6321 CTL_PAGE_CURRENT)); 6322 saved_cp = (struct scsi_caching_page *) 6323 (page_index->page_data + (page_index->page_len * 6324 CTL_PAGE_SAVED)); 6325 6326 mtx_lock(&lun->lun_lock); 6327 if ((current_cp->flags1 & (SCP_WCE | SCP_RCD)) != 6328 (user_cp->flags1 & (SCP_WCE | SCP_RCD))) { 6329 current_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6330 current_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6331 saved_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6332 saved_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6333 set_ua = 1; 6334 } 6335 if (set_ua != 0) { 6336 int i; 6337 /* 6338 * Let other initiators know that the mode 6339 * parameters for this LUN have changed. 6340 */ 6341 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6342 if (i == initidx) 6343 continue; 6344 6345 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6346 } 6347 } 6348 mtx_unlock(&lun->lun_lock); 6349 6350 return (0); 6351} 6352 6353int 6354ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 6355 struct ctl_page_index *page_index, 6356 uint8_t *page_ptr) 6357{ 6358 uint8_t *c; 6359 int i; 6360 6361 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 6362 ctl_time_io_secs = 6363 (c[0] << 8) | 6364 (c[1] << 0) | 6365 0; 6366 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 6367 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 6368 printf("page data:"); 6369 for (i=0; i<8; i++) 6370 printf(" %.2x",page_ptr[i]); 6371 printf("\n"); 6372 return (0); 6373} 6374 6375int 6376ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 6377 struct ctl_page_index *page_index, 6378 int pc) 6379{ 6380 struct copan_debugconf_subpage *page; 6381 6382 page = (struct copan_debugconf_subpage *)page_index->page_data + 6383 (page_index->page_len * pc); 6384 6385 switch (pc) { 6386 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6387 case SMS_PAGE_CTRL_DEFAULT >> 6: 6388 case SMS_PAGE_CTRL_SAVED >> 6: 6389 /* 6390 * We don't update the changable or default bits for this page. 6391 */ 6392 break; 6393 case SMS_PAGE_CTRL_CURRENT >> 6: 6394 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 6395 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 6396 break; 6397 default: 6398#ifdef NEEDTOPORT 6399 EPRINT(0, "Invalid PC %d!!", pc); 6400#endif /* NEEDTOPORT */ 6401 break; 6402 } 6403 return (0); 6404} 6405 6406 6407static int 6408ctl_do_mode_select(union ctl_io *io) 6409{ 6410 struct scsi_mode_page_header *page_header; 6411 struct ctl_page_index *page_index; 6412 struct ctl_scsiio *ctsio; 6413 int control_dev, page_len; 6414 int page_len_offset, page_len_size; 6415 union ctl_modepage_info *modepage_info; 6416 struct ctl_lun *lun; 6417 int *len_left, *len_used; 6418 int retval, i; 6419 6420 ctsio = &io->scsiio; 6421 page_index = NULL; 6422 page_len = 0; 6423 retval = CTL_RETVAL_COMPLETE; 6424 6425 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6426 6427 if (lun->be_lun->lun_type != T_DIRECT) 6428 control_dev = 1; 6429 else 6430 control_dev = 0; 6431 6432 modepage_info = (union ctl_modepage_info *) 6433 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6434 len_left = &modepage_info->header.len_left; 6435 len_used = &modepage_info->header.len_used; 6436 6437do_next_page: 6438 6439 page_header = (struct scsi_mode_page_header *) 6440 (ctsio->kern_data_ptr + *len_used); 6441 6442 if (*len_left == 0) { 6443 free(ctsio->kern_data_ptr, M_CTL); 6444 ctl_set_success(ctsio); 6445 ctl_done((union ctl_io *)ctsio); 6446 return (CTL_RETVAL_COMPLETE); 6447 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6448 6449 free(ctsio->kern_data_ptr, M_CTL); 6450 ctl_set_param_len_error(ctsio); 6451 ctl_done((union ctl_io *)ctsio); 6452 return (CTL_RETVAL_COMPLETE); 6453 6454 } else if ((page_header->page_code & SMPH_SPF) 6455 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6456 6457 free(ctsio->kern_data_ptr, M_CTL); 6458 ctl_set_param_len_error(ctsio); 6459 ctl_done((union ctl_io *)ctsio); 6460 return (CTL_RETVAL_COMPLETE); 6461 } 6462 6463 6464 /* 6465 * XXX KDM should we do something with the block descriptor? 6466 */ 6467 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6468 6469 if ((control_dev != 0) 6470 && (lun->mode_pages.index[i].page_flags & 6471 CTL_PAGE_FLAG_DISK_ONLY)) 6472 continue; 6473 6474 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 6475 (page_header->page_code & SMPH_PC_MASK)) 6476 continue; 6477 6478 /* 6479 * If neither page has a subpage code, then we've got a 6480 * match. 6481 */ 6482 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 6483 && ((page_header->page_code & SMPH_SPF) == 0)) { 6484 page_index = &lun->mode_pages.index[i]; 6485 page_len = page_header->page_length; 6486 break; 6487 } 6488 6489 /* 6490 * If both pages have subpages, then the subpage numbers 6491 * have to match. 6492 */ 6493 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 6494 && (page_header->page_code & SMPH_SPF)) { 6495 struct scsi_mode_page_header_sp *sph; 6496 6497 sph = (struct scsi_mode_page_header_sp *)page_header; 6498 6499 if (lun->mode_pages.index[i].subpage == 6500 sph->subpage) { 6501 page_index = &lun->mode_pages.index[i]; 6502 page_len = scsi_2btoul(sph->page_length); 6503 break; 6504 } 6505 } 6506 } 6507 6508 /* 6509 * If we couldn't find the page, or if we don't have a mode select 6510 * handler for it, send back an error to the user. 6511 */ 6512 if ((page_index == NULL) 6513 || (page_index->select_handler == NULL)) { 6514 ctl_set_invalid_field(ctsio, 6515 /*sks_valid*/ 1, 6516 /*command*/ 0, 6517 /*field*/ *len_used, 6518 /*bit_valid*/ 0, 6519 /*bit*/ 0); 6520 free(ctsio->kern_data_ptr, M_CTL); 6521 ctl_done((union ctl_io *)ctsio); 6522 return (CTL_RETVAL_COMPLETE); 6523 } 6524 6525 if (page_index->page_code & SMPH_SPF) { 6526 page_len_offset = 2; 6527 page_len_size = 2; 6528 } else { 6529 page_len_size = 1; 6530 page_len_offset = 1; 6531 } 6532 6533 /* 6534 * If the length the initiator gives us isn't the one we specify in 6535 * the mode page header, or if they didn't specify enough data in 6536 * the CDB to avoid truncating this page, kick out the request. 6537 */ 6538 if ((page_len != (page_index->page_len - page_len_offset - 6539 page_len_size)) 6540 || (*len_left < page_index->page_len)) { 6541 6542 6543 ctl_set_invalid_field(ctsio, 6544 /*sks_valid*/ 1, 6545 /*command*/ 0, 6546 /*field*/ *len_used + page_len_offset, 6547 /*bit_valid*/ 0, 6548 /*bit*/ 0); 6549 free(ctsio->kern_data_ptr, M_CTL); 6550 ctl_done((union ctl_io *)ctsio); 6551 return (CTL_RETVAL_COMPLETE); 6552 } 6553 6554 /* 6555 * Run through the mode page, checking to make sure that the bits 6556 * the user changed are actually legal for him to change. 6557 */ 6558 for (i = 0; i < page_index->page_len; i++) { 6559 uint8_t *user_byte, *change_mask, *current_byte; 6560 int bad_bit; 6561 int j; 6562 6563 user_byte = (uint8_t *)page_header + i; 6564 change_mask = page_index->page_data + 6565 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6566 current_byte = page_index->page_data + 6567 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6568 6569 /* 6570 * Check to see whether the user set any bits in this byte 6571 * that he is not allowed to set. 6572 */ 6573 if ((*user_byte & ~(*change_mask)) == 6574 (*current_byte & ~(*change_mask))) 6575 continue; 6576 6577 /* 6578 * Go through bit by bit to determine which one is illegal. 6579 */ 6580 bad_bit = 0; 6581 for (j = 7; j >= 0; j--) { 6582 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6583 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6584 bad_bit = i; 6585 break; 6586 } 6587 } 6588 ctl_set_invalid_field(ctsio, 6589 /*sks_valid*/ 1, 6590 /*command*/ 0, 6591 /*field*/ *len_used + i, 6592 /*bit_valid*/ 1, 6593 /*bit*/ bad_bit); 6594 free(ctsio->kern_data_ptr, M_CTL); 6595 ctl_done((union ctl_io *)ctsio); 6596 return (CTL_RETVAL_COMPLETE); 6597 } 6598 6599 /* 6600 * Decrement these before we call the page handler, since we may 6601 * end up getting called back one way or another before the handler 6602 * returns to this context. 6603 */ 6604 *len_left -= page_index->page_len; 6605 *len_used += page_index->page_len; 6606 6607 retval = page_index->select_handler(ctsio, page_index, 6608 (uint8_t *)page_header); 6609 6610 /* 6611 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6612 * wait until this queued command completes to finish processing 6613 * the mode page. If it returns anything other than 6614 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6615 * already set the sense information, freed the data pointer, and 6616 * completed the io for us. 6617 */ 6618 if (retval != CTL_RETVAL_COMPLETE) 6619 goto bailout_no_done; 6620 6621 /* 6622 * If the initiator sent us more than one page, parse the next one. 6623 */ 6624 if (*len_left > 0) 6625 goto do_next_page; 6626 6627 ctl_set_success(ctsio); 6628 free(ctsio->kern_data_ptr, M_CTL); 6629 ctl_done((union ctl_io *)ctsio); 6630 6631bailout_no_done: 6632 6633 return (CTL_RETVAL_COMPLETE); 6634 6635} 6636 6637int 6638ctl_mode_select(struct ctl_scsiio *ctsio) 6639{ 6640 int param_len, pf, sp; 6641 int header_size, bd_len; 6642 int len_left, len_used; 6643 struct ctl_page_index *page_index; 6644 struct ctl_lun *lun; 6645 int control_dev, page_len; 6646 union ctl_modepage_info *modepage_info; 6647 int retval; 6648 6649 pf = 0; 6650 sp = 0; 6651 page_len = 0; 6652 len_used = 0; 6653 len_left = 0; 6654 retval = 0; 6655 bd_len = 0; 6656 page_index = NULL; 6657 6658 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6659 6660 if (lun->be_lun->lun_type != T_DIRECT) 6661 control_dev = 1; 6662 else 6663 control_dev = 0; 6664 6665 switch (ctsio->cdb[0]) { 6666 case MODE_SELECT_6: { 6667 struct scsi_mode_select_6 *cdb; 6668 6669 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6670 6671 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6672 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6673 6674 param_len = cdb->length; 6675 header_size = sizeof(struct scsi_mode_header_6); 6676 break; 6677 } 6678 case MODE_SELECT_10: { 6679 struct scsi_mode_select_10 *cdb; 6680 6681 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6682 6683 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6684 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6685 6686 param_len = scsi_2btoul(cdb->length); 6687 header_size = sizeof(struct scsi_mode_header_10); 6688 break; 6689 } 6690 default: 6691 ctl_set_invalid_opcode(ctsio); 6692 ctl_done((union ctl_io *)ctsio); 6693 return (CTL_RETVAL_COMPLETE); 6694 break; /* NOTREACHED */ 6695 } 6696 6697 /* 6698 * From SPC-3: 6699 * "A parameter list length of zero indicates that the Data-Out Buffer 6700 * shall be empty. This condition shall not be considered as an error." 6701 */ 6702 if (param_len == 0) { 6703 ctl_set_success(ctsio); 6704 ctl_done((union ctl_io *)ctsio); 6705 return (CTL_RETVAL_COMPLETE); 6706 } 6707 6708 /* 6709 * Since we'll hit this the first time through, prior to 6710 * allocation, we don't need to free a data buffer here. 6711 */ 6712 if (param_len < header_size) { 6713 ctl_set_param_len_error(ctsio); 6714 ctl_done((union ctl_io *)ctsio); 6715 return (CTL_RETVAL_COMPLETE); 6716 } 6717 6718 /* 6719 * Allocate the data buffer and grab the user's data. In theory, 6720 * we shouldn't have to sanity check the parameter list length here 6721 * because the maximum size is 64K. We should be able to malloc 6722 * that much without too many problems. 6723 */ 6724 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6725 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6726 ctsio->kern_data_len = param_len; 6727 ctsio->kern_total_len = param_len; 6728 ctsio->kern_data_resid = 0; 6729 ctsio->kern_rel_offset = 0; 6730 ctsio->kern_sg_entries = 0; 6731 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6732 ctsio->be_move_done = ctl_config_move_done; 6733 ctl_datamove((union ctl_io *)ctsio); 6734 6735 return (CTL_RETVAL_COMPLETE); 6736 } 6737 6738 switch (ctsio->cdb[0]) { 6739 case MODE_SELECT_6: { 6740 struct scsi_mode_header_6 *mh6; 6741 6742 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6743 bd_len = mh6->blk_desc_len; 6744 break; 6745 } 6746 case MODE_SELECT_10: { 6747 struct scsi_mode_header_10 *mh10; 6748 6749 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6750 bd_len = scsi_2btoul(mh10->blk_desc_len); 6751 break; 6752 } 6753 default: 6754 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6755 break; 6756 } 6757 6758 if (param_len < (header_size + bd_len)) { 6759 free(ctsio->kern_data_ptr, M_CTL); 6760 ctl_set_param_len_error(ctsio); 6761 ctl_done((union ctl_io *)ctsio); 6762 return (CTL_RETVAL_COMPLETE); 6763 } 6764 6765 /* 6766 * Set the IO_CONT flag, so that if this I/O gets passed to 6767 * ctl_config_write_done(), it'll get passed back to 6768 * ctl_do_mode_select() for further processing, or completion if 6769 * we're all done. 6770 */ 6771 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6772 ctsio->io_cont = ctl_do_mode_select; 6773 6774 modepage_info = (union ctl_modepage_info *) 6775 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6776 6777 memset(modepage_info, 0, sizeof(*modepage_info)); 6778 6779 len_left = param_len - header_size - bd_len; 6780 len_used = header_size + bd_len; 6781 6782 modepage_info->header.len_left = len_left; 6783 modepage_info->header.len_used = len_used; 6784 6785 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6786} 6787 6788int 6789ctl_mode_sense(struct ctl_scsiio *ctsio) 6790{ 6791 struct ctl_lun *lun; 6792 int pc, page_code, dbd, llba, subpage; 6793 int alloc_len, page_len, header_len, total_len; 6794 struct scsi_mode_block_descr *block_desc; 6795 struct ctl_page_index *page_index; 6796 int control_dev; 6797 6798 dbd = 0; 6799 llba = 0; 6800 block_desc = NULL; 6801 page_index = NULL; 6802 6803 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6804 6805 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6806 6807 if (lun->be_lun->lun_type != T_DIRECT) 6808 control_dev = 1; 6809 else 6810 control_dev = 0; 6811 6812 switch (ctsio->cdb[0]) { 6813 case MODE_SENSE_6: { 6814 struct scsi_mode_sense_6 *cdb; 6815 6816 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6817 6818 header_len = sizeof(struct scsi_mode_hdr_6); 6819 if (cdb->byte2 & SMS_DBD) 6820 dbd = 1; 6821 else 6822 header_len += sizeof(struct scsi_mode_block_descr); 6823 6824 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6825 page_code = cdb->page & SMS_PAGE_CODE; 6826 subpage = cdb->subpage; 6827 alloc_len = cdb->length; 6828 break; 6829 } 6830 case MODE_SENSE_10: { 6831 struct scsi_mode_sense_10 *cdb; 6832 6833 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6834 6835 header_len = sizeof(struct scsi_mode_hdr_10); 6836 6837 if (cdb->byte2 & SMS_DBD) 6838 dbd = 1; 6839 else 6840 header_len += sizeof(struct scsi_mode_block_descr); 6841 if (cdb->byte2 & SMS10_LLBAA) 6842 llba = 1; 6843 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6844 page_code = cdb->page & SMS_PAGE_CODE; 6845 subpage = cdb->subpage; 6846 alloc_len = scsi_2btoul(cdb->length); 6847 break; 6848 } 6849 default: 6850 ctl_set_invalid_opcode(ctsio); 6851 ctl_done((union ctl_io *)ctsio); 6852 return (CTL_RETVAL_COMPLETE); 6853 break; /* NOTREACHED */ 6854 } 6855 6856 /* 6857 * We have to make a first pass through to calculate the size of 6858 * the pages that match the user's query. Then we allocate enough 6859 * memory to hold it, and actually copy the data into the buffer. 6860 */ 6861 switch (page_code) { 6862 case SMS_ALL_PAGES_PAGE: { 6863 int i; 6864 6865 page_len = 0; 6866 6867 /* 6868 * At the moment, values other than 0 and 0xff here are 6869 * reserved according to SPC-3. 6870 */ 6871 if ((subpage != SMS_SUBPAGE_PAGE_0) 6872 && (subpage != SMS_SUBPAGE_ALL)) { 6873 ctl_set_invalid_field(ctsio, 6874 /*sks_valid*/ 1, 6875 /*command*/ 1, 6876 /*field*/ 3, 6877 /*bit_valid*/ 0, 6878 /*bit*/ 0); 6879 ctl_done((union ctl_io *)ctsio); 6880 return (CTL_RETVAL_COMPLETE); 6881 } 6882 6883 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6884 if ((control_dev != 0) 6885 && (lun->mode_pages.index[i].page_flags & 6886 CTL_PAGE_FLAG_DISK_ONLY)) 6887 continue; 6888 6889 /* 6890 * We don't use this subpage if the user didn't 6891 * request all subpages. 6892 */ 6893 if ((lun->mode_pages.index[i].subpage != 0) 6894 && (subpage == SMS_SUBPAGE_PAGE_0)) 6895 continue; 6896 6897#if 0 6898 printf("found page %#x len %d\n", 6899 lun->mode_pages.index[i].page_code & 6900 SMPH_PC_MASK, 6901 lun->mode_pages.index[i].page_len); 6902#endif 6903 page_len += lun->mode_pages.index[i].page_len; 6904 } 6905 break; 6906 } 6907 default: { 6908 int i; 6909 6910 page_len = 0; 6911 6912 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6913 /* Look for the right page code */ 6914 if ((lun->mode_pages.index[i].page_code & 6915 SMPH_PC_MASK) != page_code) 6916 continue; 6917 6918 /* Look for the right subpage or the subpage wildcard*/ 6919 if ((lun->mode_pages.index[i].subpage != subpage) 6920 && (subpage != SMS_SUBPAGE_ALL)) 6921 continue; 6922 6923 /* Make sure the page is supported for this dev type */ 6924 if ((control_dev != 0) 6925 && (lun->mode_pages.index[i].page_flags & 6926 CTL_PAGE_FLAG_DISK_ONLY)) 6927 continue; 6928 6929#if 0 6930 printf("found page %#x len %d\n", 6931 lun->mode_pages.index[i].page_code & 6932 SMPH_PC_MASK, 6933 lun->mode_pages.index[i].page_len); 6934#endif 6935 6936 page_len += lun->mode_pages.index[i].page_len; 6937 } 6938 6939 if (page_len == 0) { 6940 ctl_set_invalid_field(ctsio, 6941 /*sks_valid*/ 1, 6942 /*command*/ 1, 6943 /*field*/ 2, 6944 /*bit_valid*/ 1, 6945 /*bit*/ 5); 6946 ctl_done((union ctl_io *)ctsio); 6947 return (CTL_RETVAL_COMPLETE); 6948 } 6949 break; 6950 } 6951 } 6952 6953 total_len = header_len + page_len; 6954#if 0 6955 printf("header_len = %d, page_len = %d, total_len = %d\n", 6956 header_len, page_len, total_len); 6957#endif 6958 6959 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6960 ctsio->kern_sg_entries = 0; 6961 ctsio->kern_data_resid = 0; 6962 ctsio->kern_rel_offset = 0; 6963 if (total_len < alloc_len) { 6964 ctsio->residual = alloc_len - total_len; 6965 ctsio->kern_data_len = total_len; 6966 ctsio->kern_total_len = total_len; 6967 } else { 6968 ctsio->residual = 0; 6969 ctsio->kern_data_len = alloc_len; 6970 ctsio->kern_total_len = alloc_len; 6971 } 6972 6973 switch (ctsio->cdb[0]) { 6974 case MODE_SENSE_6: { 6975 struct scsi_mode_hdr_6 *header; 6976 6977 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6978 6979 header->datalen = ctl_min(total_len - 1, 254); 6980 if (control_dev == 0) { 6981 header->dev_specific = 0x10; /* DPOFUA */ 6982 if ((lun->flags & CTL_LUN_READONLY) || 6983 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6984 .eca_and_aen & SCP_SWP) != 0) 6985 header->dev_specific |= 0x80; /* WP */ 6986 } 6987 if (dbd) 6988 header->block_descr_len = 0; 6989 else 6990 header->block_descr_len = 6991 sizeof(struct scsi_mode_block_descr); 6992 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6993 break; 6994 } 6995 case MODE_SENSE_10: { 6996 struct scsi_mode_hdr_10 *header; 6997 int datalen; 6998 6999 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 7000 7001 datalen = ctl_min(total_len - 2, 65533); 7002 scsi_ulto2b(datalen, header->datalen); 7003 if (control_dev == 0) { 7004 header->dev_specific = 0x10; /* DPOFUA */ 7005 if ((lun->flags & CTL_LUN_READONLY) || 7006 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 7007 .eca_and_aen & SCP_SWP) != 0) 7008 header->dev_specific |= 0x80; /* WP */ 7009 } 7010 if (dbd) 7011 scsi_ulto2b(0, header->block_descr_len); 7012 else 7013 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 7014 header->block_descr_len); 7015 block_desc = (struct scsi_mode_block_descr *)&header[1]; 7016 break; 7017 } 7018 default: 7019 panic("invalid CDB type %#x", ctsio->cdb[0]); 7020 break; /* NOTREACHED */ 7021 } 7022 7023 /* 7024 * If we've got a disk, use its blocksize in the block 7025 * descriptor. Otherwise, just set it to 0. 7026 */ 7027 if (dbd == 0) { 7028 if (control_dev == 0) 7029 scsi_ulto3b(lun->be_lun->blocksize, 7030 block_desc->block_len); 7031 else 7032 scsi_ulto3b(0, block_desc->block_len); 7033 } 7034 7035 switch (page_code) { 7036 case SMS_ALL_PAGES_PAGE: { 7037 int i, data_used; 7038 7039 data_used = header_len; 7040 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7041 struct ctl_page_index *page_index; 7042 7043 page_index = &lun->mode_pages.index[i]; 7044 7045 if ((control_dev != 0) 7046 && (page_index->page_flags & 7047 CTL_PAGE_FLAG_DISK_ONLY)) 7048 continue; 7049 7050 /* 7051 * We don't use this subpage if the user didn't 7052 * request all subpages. We already checked (above) 7053 * to make sure the user only specified a subpage 7054 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 7055 */ 7056 if ((page_index->subpage != 0) 7057 && (subpage == SMS_SUBPAGE_PAGE_0)) 7058 continue; 7059 7060 /* 7061 * Call the handler, if it exists, to update the 7062 * page to the latest values. 7063 */ 7064 if (page_index->sense_handler != NULL) 7065 page_index->sense_handler(ctsio, page_index,pc); 7066 7067 memcpy(ctsio->kern_data_ptr + data_used, 7068 page_index->page_data + 7069 (page_index->page_len * pc), 7070 page_index->page_len); 7071 data_used += page_index->page_len; 7072 } 7073 break; 7074 } 7075 default: { 7076 int i, data_used; 7077 7078 data_used = header_len; 7079 7080 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7081 struct ctl_page_index *page_index; 7082 7083 page_index = &lun->mode_pages.index[i]; 7084 7085 /* Look for the right page code */ 7086 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 7087 continue; 7088 7089 /* Look for the right subpage or the subpage wildcard*/ 7090 if ((page_index->subpage != subpage) 7091 && (subpage != SMS_SUBPAGE_ALL)) 7092 continue; 7093 7094 /* Make sure the page is supported for this dev type */ 7095 if ((control_dev != 0) 7096 && (page_index->page_flags & 7097 CTL_PAGE_FLAG_DISK_ONLY)) 7098 continue; 7099 7100 /* 7101 * Call the handler, if it exists, to update the 7102 * page to the latest values. 7103 */ 7104 if (page_index->sense_handler != NULL) 7105 page_index->sense_handler(ctsio, page_index,pc); 7106 7107 memcpy(ctsio->kern_data_ptr + data_used, 7108 page_index->page_data + 7109 (page_index->page_len * pc), 7110 page_index->page_len); 7111 data_used += page_index->page_len; 7112 } 7113 break; 7114 } 7115 } 7116 7117 ctsio->scsi_status = SCSI_STATUS_OK; 7118 7119 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7120 ctsio->be_move_done = ctl_config_move_done; 7121 ctl_datamove((union ctl_io *)ctsio); 7122 7123 return (CTL_RETVAL_COMPLETE); 7124} 7125 7126int 7127ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio, 7128 struct ctl_page_index *page_index, 7129 int pc) 7130{ 7131 struct ctl_lun *lun; 7132 struct scsi_log_param_header *phdr; 7133 uint8_t *data; 7134 uint64_t val; 7135 7136 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7137 data = page_index->page_data; 7138 7139 if (lun->backend->lun_attr != NULL && 7140 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksavail")) 7141 != UINT64_MAX) { 7142 phdr = (struct scsi_log_param_header *)data; 7143 scsi_ulto2b(0x0001, phdr->param_code); 7144 phdr->param_control = SLP_LBIN | SLP_LP; 7145 phdr->param_len = 8; 7146 data = (uint8_t *)(phdr + 1); 7147 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 7148 data[4] = 0x01; /* per-LUN */ 7149 data += phdr->param_len; 7150 } 7151 7152 if (lun->backend->lun_attr != NULL && 7153 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksused")) 7154 != UINT64_MAX) { 7155 phdr = (struct scsi_log_param_header *)data; 7156 scsi_ulto2b(0x0002, phdr->param_code); 7157 phdr->param_control = SLP_LBIN | SLP_LP; 7158 phdr->param_len = 8; 7159 data = (uint8_t *)(phdr + 1); 7160 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 7161 data[4] = 0x02; /* per-pool */ 7162 data += phdr->param_len; 7163 } 7164 7165 if (lun->backend->lun_attr != NULL && 7166 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksavail")) 7167 != UINT64_MAX) { 7168 phdr = (struct scsi_log_param_header *)data; 7169 scsi_ulto2b(0x00f1, phdr->param_code); 7170 phdr->param_control = SLP_LBIN | SLP_LP; 7171 phdr->param_len = 8; 7172 data = (uint8_t *)(phdr + 1); 7173 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 7174 data[4] = 0x02; /* per-pool */ 7175 data += phdr->param_len; 7176 } 7177 7178 if (lun->backend->lun_attr != NULL && 7179 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksused")) 7180 != UINT64_MAX) { 7181 phdr = (struct scsi_log_param_header *)data; 7182 scsi_ulto2b(0x00f2, phdr->param_code); 7183 phdr->param_control = SLP_LBIN | SLP_LP; 7184 phdr->param_len = 8; 7185 data = (uint8_t *)(phdr + 1); 7186 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 7187 data[4] = 0x02; /* per-pool */ 7188 data += phdr->param_len; 7189 } 7190 7191 page_index->page_len = data - page_index->page_data; 7192 return (0); 7193} 7194 7195int 7196ctl_log_sense(struct ctl_scsiio *ctsio) 7197{ 7198 struct ctl_lun *lun; 7199 int i, pc, page_code, subpage; 7200 int alloc_len, total_len; 7201 struct ctl_page_index *page_index; 7202 struct scsi_log_sense *cdb; 7203 struct scsi_log_header *header; 7204 7205 CTL_DEBUG_PRINT(("ctl_log_sense\n")); 7206 7207 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7208 cdb = (struct scsi_log_sense *)ctsio->cdb; 7209 pc = (cdb->page & SLS_PAGE_CTRL_MASK) >> 6; 7210 page_code = cdb->page & SLS_PAGE_CODE; 7211 subpage = cdb->subpage; 7212 alloc_len = scsi_2btoul(cdb->length); 7213 7214 page_index = NULL; 7215 for (i = 0; i < CTL_NUM_LOG_PAGES; i++) { 7216 page_index = &lun->log_pages.index[i]; 7217 7218 /* Look for the right page code */ 7219 if ((page_index->page_code & SL_PAGE_CODE) != page_code) 7220 continue; 7221 7222 /* Look for the right subpage or the subpage wildcard*/ 7223 if (page_index->subpage != subpage) 7224 continue; 7225 7226 break; 7227 } 7228 if (i >= CTL_NUM_LOG_PAGES) { 7229 ctl_set_invalid_field(ctsio, 7230 /*sks_valid*/ 1, 7231 /*command*/ 1, 7232 /*field*/ 2, 7233 /*bit_valid*/ 0, 7234 /*bit*/ 0); 7235 ctl_done((union ctl_io *)ctsio); 7236 return (CTL_RETVAL_COMPLETE); 7237 } 7238 7239 total_len = sizeof(struct scsi_log_header) + page_index->page_len; 7240 7241 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7242 ctsio->kern_sg_entries = 0; 7243 ctsio->kern_data_resid = 0; 7244 ctsio->kern_rel_offset = 0; 7245 if (total_len < alloc_len) { 7246 ctsio->residual = alloc_len - total_len; 7247 ctsio->kern_data_len = total_len; 7248 ctsio->kern_total_len = total_len; 7249 } else { 7250 ctsio->residual = 0; 7251 ctsio->kern_data_len = alloc_len; 7252 ctsio->kern_total_len = alloc_len; 7253 } 7254 7255 header = (struct scsi_log_header *)ctsio->kern_data_ptr; 7256 header->page = page_index->page_code; 7257 if (page_index->subpage) { 7258 header->page |= SL_SPF; 7259 header->subpage = page_index->subpage; 7260 } 7261 scsi_ulto2b(page_index->page_len, header->datalen); 7262 7263 /* 7264 * Call the handler, if it exists, to update the 7265 * page to the latest values. 7266 */ 7267 if (page_index->sense_handler != NULL) 7268 page_index->sense_handler(ctsio, page_index, pc); 7269 7270 memcpy(header + 1, page_index->page_data, page_index->page_len); 7271 7272 ctsio->scsi_status = SCSI_STATUS_OK; 7273 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7274 ctsio->be_move_done = ctl_config_move_done; 7275 ctl_datamove((union ctl_io *)ctsio); 7276 7277 return (CTL_RETVAL_COMPLETE); 7278} 7279 7280int 7281ctl_read_capacity(struct ctl_scsiio *ctsio) 7282{ 7283 struct scsi_read_capacity *cdb; 7284 struct scsi_read_capacity_data *data; 7285 struct ctl_lun *lun; 7286 uint32_t lba; 7287 7288 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 7289 7290 cdb = (struct scsi_read_capacity *)ctsio->cdb; 7291 7292 lba = scsi_4btoul(cdb->addr); 7293 if (((cdb->pmi & SRC_PMI) == 0) 7294 && (lba != 0)) { 7295 ctl_set_invalid_field(/*ctsio*/ ctsio, 7296 /*sks_valid*/ 1, 7297 /*command*/ 1, 7298 /*field*/ 2, 7299 /*bit_valid*/ 0, 7300 /*bit*/ 0); 7301 ctl_done((union ctl_io *)ctsio); 7302 return (CTL_RETVAL_COMPLETE); 7303 } 7304 7305 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7306 7307 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7308 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 7309 ctsio->residual = 0; 7310 ctsio->kern_data_len = sizeof(*data); 7311 ctsio->kern_total_len = sizeof(*data); 7312 ctsio->kern_data_resid = 0; 7313 ctsio->kern_rel_offset = 0; 7314 ctsio->kern_sg_entries = 0; 7315 7316 /* 7317 * If the maximum LBA is greater than 0xfffffffe, the user must 7318 * issue a SERVICE ACTION IN (16) command, with the read capacity 7319 * serivce action set. 7320 */ 7321 if (lun->be_lun->maxlba > 0xfffffffe) 7322 scsi_ulto4b(0xffffffff, data->addr); 7323 else 7324 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 7325 7326 /* 7327 * XXX KDM this may not be 512 bytes... 7328 */ 7329 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7330 7331 ctsio->scsi_status = SCSI_STATUS_OK; 7332 7333 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7334 ctsio->be_move_done = ctl_config_move_done; 7335 ctl_datamove((union ctl_io *)ctsio); 7336 7337 return (CTL_RETVAL_COMPLETE); 7338} 7339 7340int 7341ctl_read_capacity_16(struct ctl_scsiio *ctsio) 7342{ 7343 struct scsi_read_capacity_16 *cdb; 7344 struct scsi_read_capacity_data_long *data; 7345 struct ctl_lun *lun; 7346 uint64_t lba; 7347 uint32_t alloc_len; 7348 7349 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 7350 7351 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 7352 7353 alloc_len = scsi_4btoul(cdb->alloc_len); 7354 lba = scsi_8btou64(cdb->addr); 7355 7356 if ((cdb->reladr & SRC16_PMI) 7357 && (lba != 0)) { 7358 ctl_set_invalid_field(/*ctsio*/ ctsio, 7359 /*sks_valid*/ 1, 7360 /*command*/ 1, 7361 /*field*/ 2, 7362 /*bit_valid*/ 0, 7363 /*bit*/ 0); 7364 ctl_done((union ctl_io *)ctsio); 7365 return (CTL_RETVAL_COMPLETE); 7366 } 7367 7368 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7369 7370 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7371 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 7372 7373 if (sizeof(*data) < alloc_len) { 7374 ctsio->residual = alloc_len - sizeof(*data); 7375 ctsio->kern_data_len = sizeof(*data); 7376 ctsio->kern_total_len = sizeof(*data); 7377 } else { 7378 ctsio->residual = 0; 7379 ctsio->kern_data_len = alloc_len; 7380 ctsio->kern_total_len = alloc_len; 7381 } 7382 ctsio->kern_data_resid = 0; 7383 ctsio->kern_rel_offset = 0; 7384 ctsio->kern_sg_entries = 0; 7385 7386 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7387 /* XXX KDM this may not be 512 bytes... */ 7388 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7389 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7390 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7391 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7392 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 7393 7394 ctsio->scsi_status = SCSI_STATUS_OK; 7395 7396 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7397 ctsio->be_move_done = ctl_config_move_done; 7398 ctl_datamove((union ctl_io *)ctsio); 7399 7400 return (CTL_RETVAL_COMPLETE); 7401} 7402 7403int 7404ctl_read_defect(struct ctl_scsiio *ctsio) 7405{ 7406 struct scsi_read_defect_data_10 *ccb10; 7407 struct scsi_read_defect_data_12 *ccb12; 7408 struct scsi_read_defect_data_hdr_10 *data10; 7409 struct scsi_read_defect_data_hdr_12 *data12; 7410 struct ctl_lun *lun; 7411 uint32_t alloc_len, data_len; 7412 uint8_t format; 7413 7414 CTL_DEBUG_PRINT(("ctl_read_defect\n")); 7415 7416 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7417 7418 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7419 ccb10 = (struct scsi_read_defect_data_10 *)&ctsio->cdb; 7420 format = ccb10->format; 7421 alloc_len = scsi_2btoul(ccb10->alloc_length); 7422 data_len = sizeof(*data10); 7423 } else { 7424 ccb12 = (struct scsi_read_defect_data_12 *)&ctsio->cdb; 7425 format = ccb12->format; 7426 alloc_len = scsi_4btoul(ccb12->alloc_length); 7427 data_len = sizeof(*data12); 7428 } 7429 if (alloc_len == 0) { 7430 ctl_set_success(ctsio); 7431 ctl_done((union ctl_io *)ctsio); 7432 return (CTL_RETVAL_COMPLETE); 7433 } 7434 7435 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 7436 if (data_len < alloc_len) { 7437 ctsio->residual = alloc_len - data_len; 7438 ctsio->kern_data_len = data_len; 7439 ctsio->kern_total_len = data_len; 7440 } else { 7441 ctsio->residual = 0; 7442 ctsio->kern_data_len = alloc_len; 7443 ctsio->kern_total_len = alloc_len; 7444 } 7445 ctsio->kern_data_resid = 0; 7446 ctsio->kern_rel_offset = 0; 7447 ctsio->kern_sg_entries = 0; 7448 7449 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7450 data10 = (struct scsi_read_defect_data_hdr_10 *) 7451 ctsio->kern_data_ptr; 7452 data10->format = format; 7453 scsi_ulto2b(0, data10->length); 7454 } else { 7455 data12 = (struct scsi_read_defect_data_hdr_12 *) 7456 ctsio->kern_data_ptr; 7457 data12->format = format; 7458 scsi_ulto2b(0, data12->generation); 7459 scsi_ulto4b(0, data12->length); 7460 } 7461 7462 ctsio->scsi_status = SCSI_STATUS_OK; 7463 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7464 ctsio->be_move_done = ctl_config_move_done; 7465 ctl_datamove((union ctl_io *)ctsio); 7466 return (CTL_RETVAL_COMPLETE); 7467} 7468 7469int 7470ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7471{ 7472 struct scsi_maintenance_in *cdb; 7473 int retval; 7474 int alloc_len, ext, total_len = 0, g, p, pc, pg, gs, os; 7475 int num_target_port_groups, num_target_ports; 7476 struct ctl_lun *lun; 7477 struct ctl_softc *softc; 7478 struct ctl_port *port; 7479 struct scsi_target_group_data *rtg_ptr; 7480 struct scsi_target_group_data_extended *rtg_ext_ptr; 7481 struct scsi_target_port_group_descriptor *tpg_desc; 7482 7483 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7484 7485 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7486 softc = control_softc; 7487 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7488 7489 retval = CTL_RETVAL_COMPLETE; 7490 7491 switch (cdb->byte2 & STG_PDF_MASK) { 7492 case STG_PDF_LENGTH: 7493 ext = 0; 7494 break; 7495 case STG_PDF_EXTENDED: 7496 ext = 1; 7497 break; 7498 default: 7499 ctl_set_invalid_field(/*ctsio*/ ctsio, 7500 /*sks_valid*/ 1, 7501 /*command*/ 1, 7502 /*field*/ 2, 7503 /*bit_valid*/ 1, 7504 /*bit*/ 5); 7505 ctl_done((union ctl_io *)ctsio); 7506 return(retval); 7507 } 7508 7509 if (softc->is_single) 7510 num_target_port_groups = 1; 7511 else 7512 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7513 num_target_ports = 0; 7514 mtx_lock(&softc->ctl_lock); 7515 STAILQ_FOREACH(port, &softc->port_list, links) { 7516 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7517 continue; 7518 if (ctl_map_lun_back(port->targ_port, lun->lun) >= CTL_MAX_LUNS) 7519 continue; 7520 num_target_ports++; 7521 } 7522 mtx_unlock(&softc->ctl_lock); 7523 7524 if (ext) 7525 total_len = sizeof(struct scsi_target_group_data_extended); 7526 else 7527 total_len = sizeof(struct scsi_target_group_data); 7528 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7529 num_target_port_groups + 7530 sizeof(struct scsi_target_port_descriptor) * 7531 num_target_ports * num_target_port_groups; 7532 7533 alloc_len = scsi_4btoul(cdb->length); 7534 7535 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7536 7537 ctsio->kern_sg_entries = 0; 7538 7539 if (total_len < alloc_len) { 7540 ctsio->residual = alloc_len - total_len; 7541 ctsio->kern_data_len = total_len; 7542 ctsio->kern_total_len = total_len; 7543 } else { 7544 ctsio->residual = 0; 7545 ctsio->kern_data_len = alloc_len; 7546 ctsio->kern_total_len = alloc_len; 7547 } 7548 ctsio->kern_data_resid = 0; 7549 ctsio->kern_rel_offset = 0; 7550 7551 if (ext) { 7552 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7553 ctsio->kern_data_ptr; 7554 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7555 rtg_ext_ptr->format_type = 0x10; 7556 rtg_ext_ptr->implicit_transition_time = 0; 7557 tpg_desc = &rtg_ext_ptr->groups[0]; 7558 } else { 7559 rtg_ptr = (struct scsi_target_group_data *) 7560 ctsio->kern_data_ptr; 7561 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7562 tpg_desc = &rtg_ptr->groups[0]; 7563 } 7564 7565 mtx_lock(&softc->ctl_lock); 7566 pg = softc->port_offset / CTL_MAX_PORTS; 7567 if (softc->flags & CTL_FLAG_ACTIVE_SHELF) { 7568 if (softc->ha_mode == CTL_HA_MODE_ACT_STBY) { 7569 gs = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7570 os = TPG_ASYMMETRIC_ACCESS_STANDBY; 7571 } else if (lun->flags & CTL_LUN_PRIMARY_SC) { 7572 gs = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7573 os = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7574 } else { 7575 gs = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7576 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7577 } 7578 } else { 7579 gs = TPG_ASYMMETRIC_ACCESS_STANDBY; 7580 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7581 } 7582 for (g = 0; g < num_target_port_groups; g++) { 7583 tpg_desc->pref_state = (g == pg) ? gs : os; 7584 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP; 7585 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7586 tpg_desc->status = TPG_IMPLICIT; 7587 pc = 0; 7588 STAILQ_FOREACH(port, &softc->port_list, links) { 7589 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7590 continue; 7591 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 7592 CTL_MAX_LUNS) 7593 continue; 7594 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 7595 scsi_ulto2b(p, tpg_desc->descriptors[pc]. 7596 relative_target_port_identifier); 7597 pc++; 7598 } 7599 tpg_desc->target_port_count = pc; 7600 tpg_desc = (struct scsi_target_port_group_descriptor *) 7601 &tpg_desc->descriptors[pc]; 7602 } 7603 mtx_unlock(&softc->ctl_lock); 7604 7605 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7606 ctsio->be_move_done = ctl_config_move_done; 7607 7608 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7609 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7610 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7611 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7612 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7613 7614 ctl_datamove((union ctl_io *)ctsio); 7615 return(retval); 7616} 7617 7618int 7619ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7620{ 7621 struct ctl_lun *lun; 7622 struct scsi_report_supported_opcodes *cdb; 7623 const struct ctl_cmd_entry *entry, *sentry; 7624 struct scsi_report_supported_opcodes_all *all; 7625 struct scsi_report_supported_opcodes_descr *descr; 7626 struct scsi_report_supported_opcodes_one *one; 7627 int retval; 7628 int alloc_len, total_len; 7629 int opcode, service_action, i, j, num; 7630 7631 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7632 7633 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7634 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7635 7636 retval = CTL_RETVAL_COMPLETE; 7637 7638 opcode = cdb->requested_opcode; 7639 service_action = scsi_2btoul(cdb->requested_service_action); 7640 switch (cdb->options & RSO_OPTIONS_MASK) { 7641 case RSO_OPTIONS_ALL: 7642 num = 0; 7643 for (i = 0; i < 256; i++) { 7644 entry = &ctl_cmd_table[i]; 7645 if (entry->flags & CTL_CMD_FLAG_SA5) { 7646 for (j = 0; j < 32; j++) { 7647 sentry = &((const struct ctl_cmd_entry *) 7648 entry->execute)[j]; 7649 if (ctl_cmd_applicable( 7650 lun->be_lun->lun_type, sentry)) 7651 num++; 7652 } 7653 } else { 7654 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7655 entry)) 7656 num++; 7657 } 7658 } 7659 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7660 num * sizeof(struct scsi_report_supported_opcodes_descr); 7661 break; 7662 case RSO_OPTIONS_OC: 7663 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7664 ctl_set_invalid_field(/*ctsio*/ ctsio, 7665 /*sks_valid*/ 1, 7666 /*command*/ 1, 7667 /*field*/ 2, 7668 /*bit_valid*/ 1, 7669 /*bit*/ 2); 7670 ctl_done((union ctl_io *)ctsio); 7671 return (CTL_RETVAL_COMPLETE); 7672 } 7673 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7674 break; 7675 case RSO_OPTIONS_OC_SA: 7676 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7677 service_action >= 32) { 7678 ctl_set_invalid_field(/*ctsio*/ ctsio, 7679 /*sks_valid*/ 1, 7680 /*command*/ 1, 7681 /*field*/ 2, 7682 /*bit_valid*/ 1, 7683 /*bit*/ 2); 7684 ctl_done((union ctl_io *)ctsio); 7685 return (CTL_RETVAL_COMPLETE); 7686 } 7687 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7688 break; 7689 default: 7690 ctl_set_invalid_field(/*ctsio*/ ctsio, 7691 /*sks_valid*/ 1, 7692 /*command*/ 1, 7693 /*field*/ 2, 7694 /*bit_valid*/ 1, 7695 /*bit*/ 2); 7696 ctl_done((union ctl_io *)ctsio); 7697 return (CTL_RETVAL_COMPLETE); 7698 } 7699 7700 alloc_len = scsi_4btoul(cdb->length); 7701 7702 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7703 7704 ctsio->kern_sg_entries = 0; 7705 7706 if (total_len < alloc_len) { 7707 ctsio->residual = alloc_len - total_len; 7708 ctsio->kern_data_len = total_len; 7709 ctsio->kern_total_len = total_len; 7710 } else { 7711 ctsio->residual = 0; 7712 ctsio->kern_data_len = alloc_len; 7713 ctsio->kern_total_len = alloc_len; 7714 } 7715 ctsio->kern_data_resid = 0; 7716 ctsio->kern_rel_offset = 0; 7717 7718 switch (cdb->options & RSO_OPTIONS_MASK) { 7719 case RSO_OPTIONS_ALL: 7720 all = (struct scsi_report_supported_opcodes_all *) 7721 ctsio->kern_data_ptr; 7722 num = 0; 7723 for (i = 0; i < 256; i++) { 7724 entry = &ctl_cmd_table[i]; 7725 if (entry->flags & CTL_CMD_FLAG_SA5) { 7726 for (j = 0; j < 32; j++) { 7727 sentry = &((const struct ctl_cmd_entry *) 7728 entry->execute)[j]; 7729 if (!ctl_cmd_applicable( 7730 lun->be_lun->lun_type, sentry)) 7731 continue; 7732 descr = &all->descr[num++]; 7733 descr->opcode = i; 7734 scsi_ulto2b(j, descr->service_action); 7735 descr->flags = RSO_SERVACTV; 7736 scsi_ulto2b(sentry->length, 7737 descr->cdb_length); 7738 } 7739 } else { 7740 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7741 entry)) 7742 continue; 7743 descr = &all->descr[num++]; 7744 descr->opcode = i; 7745 scsi_ulto2b(0, descr->service_action); 7746 descr->flags = 0; 7747 scsi_ulto2b(entry->length, descr->cdb_length); 7748 } 7749 } 7750 scsi_ulto4b( 7751 num * sizeof(struct scsi_report_supported_opcodes_descr), 7752 all->length); 7753 break; 7754 case RSO_OPTIONS_OC: 7755 one = (struct scsi_report_supported_opcodes_one *) 7756 ctsio->kern_data_ptr; 7757 entry = &ctl_cmd_table[opcode]; 7758 goto fill_one; 7759 case RSO_OPTIONS_OC_SA: 7760 one = (struct scsi_report_supported_opcodes_one *) 7761 ctsio->kern_data_ptr; 7762 entry = &ctl_cmd_table[opcode]; 7763 entry = &((const struct ctl_cmd_entry *) 7764 entry->execute)[service_action]; 7765fill_one: 7766 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7767 one->support = 3; 7768 scsi_ulto2b(entry->length, one->cdb_length); 7769 one->cdb_usage[0] = opcode; 7770 memcpy(&one->cdb_usage[1], entry->usage, 7771 entry->length - 1); 7772 } else 7773 one->support = 1; 7774 break; 7775 } 7776 7777 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7778 ctsio->be_move_done = ctl_config_move_done; 7779 7780 ctl_datamove((union ctl_io *)ctsio); 7781 return(retval); 7782} 7783 7784int 7785ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7786{ 7787 struct ctl_lun *lun; 7788 struct scsi_report_supported_tmf *cdb; 7789 struct scsi_report_supported_tmf_data *data; 7790 int retval; 7791 int alloc_len, total_len; 7792 7793 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7794 7795 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7796 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7797 7798 retval = CTL_RETVAL_COMPLETE; 7799 7800 total_len = sizeof(struct scsi_report_supported_tmf_data); 7801 alloc_len = scsi_4btoul(cdb->length); 7802 7803 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7804 7805 ctsio->kern_sg_entries = 0; 7806 7807 if (total_len < alloc_len) { 7808 ctsio->residual = alloc_len - total_len; 7809 ctsio->kern_data_len = total_len; 7810 ctsio->kern_total_len = total_len; 7811 } else { 7812 ctsio->residual = 0; 7813 ctsio->kern_data_len = alloc_len; 7814 ctsio->kern_total_len = alloc_len; 7815 } 7816 ctsio->kern_data_resid = 0; 7817 ctsio->kern_rel_offset = 0; 7818 7819 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7820 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_TRS; 7821 data->byte2 |= RST_ITNRS; 7822 7823 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7824 ctsio->be_move_done = ctl_config_move_done; 7825 7826 ctl_datamove((union ctl_io *)ctsio); 7827 return (retval); 7828} 7829 7830int 7831ctl_report_timestamp(struct ctl_scsiio *ctsio) 7832{ 7833 struct ctl_lun *lun; 7834 struct scsi_report_timestamp *cdb; 7835 struct scsi_report_timestamp_data *data; 7836 struct timeval tv; 7837 int64_t timestamp; 7838 int retval; 7839 int alloc_len, total_len; 7840 7841 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7842 7843 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7844 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7845 7846 retval = CTL_RETVAL_COMPLETE; 7847 7848 total_len = sizeof(struct scsi_report_timestamp_data); 7849 alloc_len = scsi_4btoul(cdb->length); 7850 7851 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7852 7853 ctsio->kern_sg_entries = 0; 7854 7855 if (total_len < alloc_len) { 7856 ctsio->residual = alloc_len - total_len; 7857 ctsio->kern_data_len = total_len; 7858 ctsio->kern_total_len = total_len; 7859 } else { 7860 ctsio->residual = 0; 7861 ctsio->kern_data_len = alloc_len; 7862 ctsio->kern_total_len = alloc_len; 7863 } 7864 ctsio->kern_data_resid = 0; 7865 ctsio->kern_rel_offset = 0; 7866 7867 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7868 scsi_ulto2b(sizeof(*data) - 2, data->length); 7869 data->origin = RTS_ORIG_OUTSIDE; 7870 getmicrotime(&tv); 7871 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7872 scsi_ulto4b(timestamp >> 16, data->timestamp); 7873 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7874 7875 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7876 ctsio->be_move_done = ctl_config_move_done; 7877 7878 ctl_datamove((union ctl_io *)ctsio); 7879 return (retval); 7880} 7881 7882int 7883ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7884{ 7885 struct scsi_per_res_in *cdb; 7886 int alloc_len, total_len = 0; 7887 /* struct scsi_per_res_in_rsrv in_data; */ 7888 struct ctl_lun *lun; 7889 struct ctl_softc *softc; 7890 7891 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7892 7893 softc = control_softc; 7894 7895 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7896 7897 alloc_len = scsi_2btoul(cdb->length); 7898 7899 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7900 7901retry: 7902 mtx_lock(&lun->lun_lock); 7903 switch (cdb->action) { 7904 case SPRI_RK: /* read keys */ 7905 total_len = sizeof(struct scsi_per_res_in_keys) + 7906 lun->pr_key_count * 7907 sizeof(struct scsi_per_res_key); 7908 break; 7909 case SPRI_RR: /* read reservation */ 7910 if (lun->flags & CTL_LUN_PR_RESERVED) 7911 total_len = sizeof(struct scsi_per_res_in_rsrv); 7912 else 7913 total_len = sizeof(struct scsi_per_res_in_header); 7914 break; 7915 case SPRI_RC: /* report capabilities */ 7916 total_len = sizeof(struct scsi_per_res_cap); 7917 break; 7918 case SPRI_RS: /* read full status */ 7919 total_len = sizeof(struct scsi_per_res_in_header) + 7920 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7921 lun->pr_key_count; 7922 break; 7923 default: 7924 panic("Invalid PR type %x", cdb->action); 7925 } 7926 mtx_unlock(&lun->lun_lock); 7927 7928 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7929 7930 if (total_len < alloc_len) { 7931 ctsio->residual = alloc_len - total_len; 7932 ctsio->kern_data_len = total_len; 7933 ctsio->kern_total_len = total_len; 7934 } else { 7935 ctsio->residual = 0; 7936 ctsio->kern_data_len = alloc_len; 7937 ctsio->kern_total_len = alloc_len; 7938 } 7939 7940 ctsio->kern_data_resid = 0; 7941 ctsio->kern_rel_offset = 0; 7942 ctsio->kern_sg_entries = 0; 7943 7944 mtx_lock(&lun->lun_lock); 7945 switch (cdb->action) { 7946 case SPRI_RK: { // read keys 7947 struct scsi_per_res_in_keys *res_keys; 7948 int i, key_count; 7949 7950 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7951 7952 /* 7953 * We had to drop the lock to allocate our buffer, which 7954 * leaves time for someone to come in with another 7955 * persistent reservation. (That is unlikely, though, 7956 * since this should be the only persistent reservation 7957 * command active right now.) 7958 */ 7959 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7960 (lun->pr_key_count * 7961 sizeof(struct scsi_per_res_key)))){ 7962 mtx_unlock(&lun->lun_lock); 7963 free(ctsio->kern_data_ptr, M_CTL); 7964 printf("%s: reservation length changed, retrying\n", 7965 __func__); 7966 goto retry; 7967 } 7968 7969 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7970 7971 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7972 lun->pr_key_count, res_keys->header.length); 7973 7974 for (i = 0, key_count = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7975 if (lun->pr_keys[i] == 0) 7976 continue; 7977 7978 /* 7979 * We used lun->pr_key_count to calculate the 7980 * size to allocate. If it turns out the number of 7981 * initiators with the registered flag set is 7982 * larger than that (i.e. they haven't been kept in 7983 * sync), we've got a problem. 7984 */ 7985 if (key_count >= lun->pr_key_count) { 7986#ifdef NEEDTOPORT 7987 csevent_log(CSC_CTL | CSC_SHELF_SW | 7988 CTL_PR_ERROR, 7989 csevent_LogType_Fault, 7990 csevent_AlertLevel_Yellow, 7991 csevent_FRU_ShelfController, 7992 csevent_FRU_Firmware, 7993 csevent_FRU_Unknown, 7994 "registered keys %d >= key " 7995 "count %d", key_count, 7996 lun->pr_key_count); 7997#endif 7998 key_count++; 7999 continue; 8000 } 8001 scsi_u64to8b(lun->pr_keys[i], 8002 res_keys->keys[key_count].key); 8003 key_count++; 8004 } 8005 break; 8006 } 8007 case SPRI_RR: { // read reservation 8008 struct scsi_per_res_in_rsrv *res; 8009 int tmp_len, header_only; 8010 8011 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 8012 8013 scsi_ulto4b(lun->PRGeneration, res->header.generation); 8014 8015 if (lun->flags & CTL_LUN_PR_RESERVED) 8016 { 8017 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 8018 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 8019 res->header.length); 8020 header_only = 0; 8021 } else { 8022 tmp_len = sizeof(struct scsi_per_res_in_header); 8023 scsi_ulto4b(0, res->header.length); 8024 header_only = 1; 8025 } 8026 8027 /* 8028 * We had to drop the lock to allocate our buffer, which 8029 * leaves time for someone to come in with another 8030 * persistent reservation. (That is unlikely, though, 8031 * since this should be the only persistent reservation 8032 * command active right now.) 8033 */ 8034 if (tmp_len != total_len) { 8035 mtx_unlock(&lun->lun_lock); 8036 free(ctsio->kern_data_ptr, M_CTL); 8037 printf("%s: reservation status changed, retrying\n", 8038 __func__); 8039 goto retry; 8040 } 8041 8042 /* 8043 * No reservation held, so we're done. 8044 */ 8045 if (header_only != 0) 8046 break; 8047 8048 /* 8049 * If the registration is an All Registrants type, the key 8050 * is 0, since it doesn't really matter. 8051 */ 8052 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8053 scsi_u64to8b(lun->pr_keys[lun->pr_res_idx], 8054 res->data.reservation); 8055 } 8056 res->data.scopetype = lun->res_type; 8057 break; 8058 } 8059 case SPRI_RC: //report capabilities 8060 { 8061 struct scsi_per_res_cap *res_cap; 8062 uint16_t type_mask; 8063 8064 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 8065 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 8066 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_5; 8067 type_mask = SPRI_TM_WR_EX_AR | 8068 SPRI_TM_EX_AC_RO | 8069 SPRI_TM_WR_EX_RO | 8070 SPRI_TM_EX_AC | 8071 SPRI_TM_WR_EX | 8072 SPRI_TM_EX_AC_AR; 8073 scsi_ulto2b(type_mask, res_cap->type_mask); 8074 break; 8075 } 8076 case SPRI_RS: { // read full status 8077 struct scsi_per_res_in_full *res_status; 8078 struct scsi_per_res_in_full_desc *res_desc; 8079 struct ctl_port *port; 8080 int i, len; 8081 8082 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 8083 8084 /* 8085 * We had to drop the lock to allocate our buffer, which 8086 * leaves time for someone to come in with another 8087 * persistent reservation. (That is unlikely, though, 8088 * since this should be the only persistent reservation 8089 * command active right now.) 8090 */ 8091 if (total_len < (sizeof(struct scsi_per_res_in_header) + 8092 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 8093 lun->pr_key_count)){ 8094 mtx_unlock(&lun->lun_lock); 8095 free(ctsio->kern_data_ptr, M_CTL); 8096 printf("%s: reservation length changed, retrying\n", 8097 __func__); 8098 goto retry; 8099 } 8100 8101 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 8102 8103 res_desc = &res_status->desc[0]; 8104 for (i = 0; i < 2*CTL_MAX_INITIATORS; i++) { 8105 if (lun->pr_keys[i] == 0) 8106 continue; 8107 8108 scsi_u64to8b(lun->pr_keys[i], res_desc->res_key.key); 8109 if ((lun->flags & CTL_LUN_PR_RESERVED) && 8110 (lun->pr_res_idx == i || 8111 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 8112 res_desc->flags = SPRI_FULL_R_HOLDER; 8113 res_desc->scopetype = lun->res_type; 8114 } 8115 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 8116 res_desc->rel_trgt_port_id); 8117 len = 0; 8118 port = softc->ctl_ports[ 8119 ctl_port_idx(i / CTL_MAX_INIT_PER_PORT)]; 8120 if (port != NULL) 8121 len = ctl_create_iid(port, 8122 i % CTL_MAX_INIT_PER_PORT, 8123 res_desc->transport_id); 8124 scsi_ulto4b(len, res_desc->additional_length); 8125 res_desc = (struct scsi_per_res_in_full_desc *) 8126 &res_desc->transport_id[len]; 8127 } 8128 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 8129 res_status->header.length); 8130 break; 8131 } 8132 default: 8133 /* 8134 * This is a bug, because we just checked for this above, 8135 * and should have returned an error. 8136 */ 8137 panic("Invalid PR type %x", cdb->action); 8138 break; /* NOTREACHED */ 8139 } 8140 mtx_unlock(&lun->lun_lock); 8141 8142 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8143 ctsio->be_move_done = ctl_config_move_done; 8144 8145 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 8146 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 8147 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 8148 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 8149 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 8150 8151 ctl_datamove((union ctl_io *)ctsio); 8152 8153 return (CTL_RETVAL_COMPLETE); 8154} 8155 8156/* 8157 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 8158 * it should return. 8159 */ 8160static int 8161ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 8162 uint64_t sa_res_key, uint8_t type, uint32_t residx, 8163 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 8164 struct scsi_per_res_out_parms* param) 8165{ 8166 union ctl_ha_msg persis_io; 8167 int retval, i; 8168 int isc_retval; 8169 8170 retval = 0; 8171 8172 mtx_lock(&lun->lun_lock); 8173 if (sa_res_key == 0) { 8174 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8175 /* validate scope and type */ 8176 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8177 SPR_LU_SCOPE) { 8178 mtx_unlock(&lun->lun_lock); 8179 ctl_set_invalid_field(/*ctsio*/ ctsio, 8180 /*sks_valid*/ 1, 8181 /*command*/ 1, 8182 /*field*/ 2, 8183 /*bit_valid*/ 1, 8184 /*bit*/ 4); 8185 ctl_done((union ctl_io *)ctsio); 8186 return (1); 8187 } 8188 8189 if (type>8 || type==2 || type==4 || type==0) { 8190 mtx_unlock(&lun->lun_lock); 8191 ctl_set_invalid_field(/*ctsio*/ ctsio, 8192 /*sks_valid*/ 1, 8193 /*command*/ 1, 8194 /*field*/ 2, 8195 /*bit_valid*/ 1, 8196 /*bit*/ 0); 8197 ctl_done((union ctl_io *)ctsio); 8198 return (1); 8199 } 8200 8201 /* 8202 * Unregister everybody else and build UA for 8203 * them 8204 */ 8205 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8206 if (i == residx || lun->pr_keys[i] == 0) 8207 continue; 8208 8209 if (!persis_offset 8210 && i <CTL_MAX_INITIATORS) 8211 lun->pending_ua[i] |= 8212 CTL_UA_REG_PREEMPT; 8213 else if (persis_offset 8214 && i >= persis_offset) 8215 lun->pending_ua[i-persis_offset] |= 8216 CTL_UA_REG_PREEMPT; 8217 lun->pr_keys[i] = 0; 8218 } 8219 lun->pr_key_count = 1; 8220 lun->res_type = type; 8221 if (lun->res_type != SPR_TYPE_WR_EX_AR 8222 && lun->res_type != SPR_TYPE_EX_AC_AR) 8223 lun->pr_res_idx = residx; 8224 8225 /* send msg to other side */ 8226 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8227 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8228 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8229 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8230 persis_io.pr.pr_info.res_type = type; 8231 memcpy(persis_io.pr.pr_info.sa_res_key, 8232 param->serv_act_res_key, 8233 sizeof(param->serv_act_res_key)); 8234 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8235 &persis_io, sizeof(persis_io), 0)) > 8236 CTL_HA_STATUS_SUCCESS) { 8237 printf("CTL:Persis Out error returned " 8238 "from ctl_ha_msg_send %d\n", 8239 isc_retval); 8240 } 8241 } else { 8242 /* not all registrants */ 8243 mtx_unlock(&lun->lun_lock); 8244 free(ctsio->kern_data_ptr, M_CTL); 8245 ctl_set_invalid_field(ctsio, 8246 /*sks_valid*/ 1, 8247 /*command*/ 0, 8248 /*field*/ 8, 8249 /*bit_valid*/ 0, 8250 /*bit*/ 0); 8251 ctl_done((union ctl_io *)ctsio); 8252 return (1); 8253 } 8254 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8255 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 8256 int found = 0; 8257 8258 if (res_key == sa_res_key) { 8259 /* special case */ 8260 /* 8261 * The spec implies this is not good but doesn't 8262 * say what to do. There are two choices either 8263 * generate a res conflict or check condition 8264 * with illegal field in parameter data. Since 8265 * that is what is done when the sa_res_key is 8266 * zero I'll take that approach since this has 8267 * to do with the sa_res_key. 8268 */ 8269 mtx_unlock(&lun->lun_lock); 8270 free(ctsio->kern_data_ptr, M_CTL); 8271 ctl_set_invalid_field(ctsio, 8272 /*sks_valid*/ 1, 8273 /*command*/ 0, 8274 /*field*/ 8, 8275 /*bit_valid*/ 0, 8276 /*bit*/ 0); 8277 ctl_done((union ctl_io *)ctsio); 8278 return (1); 8279 } 8280 8281 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8282 if (lun->pr_keys[i] != sa_res_key) 8283 continue; 8284 8285 found = 1; 8286 lun->pr_keys[i] = 0; 8287 lun->pr_key_count--; 8288 8289 if (!persis_offset && i < CTL_MAX_INITIATORS) 8290 lun->pending_ua[i] |= CTL_UA_REG_PREEMPT; 8291 else if (persis_offset && i >= persis_offset) 8292 lun->pending_ua[i-persis_offset] |= 8293 CTL_UA_REG_PREEMPT; 8294 } 8295 if (!found) { 8296 mtx_unlock(&lun->lun_lock); 8297 free(ctsio->kern_data_ptr, M_CTL); 8298 ctl_set_reservation_conflict(ctsio); 8299 ctl_done((union ctl_io *)ctsio); 8300 return (CTL_RETVAL_COMPLETE); 8301 } 8302 /* send msg to other side */ 8303 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8304 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8305 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8306 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8307 persis_io.pr.pr_info.res_type = type; 8308 memcpy(persis_io.pr.pr_info.sa_res_key, 8309 param->serv_act_res_key, 8310 sizeof(param->serv_act_res_key)); 8311 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8312 &persis_io, sizeof(persis_io), 0)) > 8313 CTL_HA_STATUS_SUCCESS) { 8314 printf("CTL:Persis Out error returned from " 8315 "ctl_ha_msg_send %d\n", isc_retval); 8316 } 8317 } else { 8318 /* Reserved but not all registrants */ 8319 /* sa_res_key is res holder */ 8320 if (sa_res_key == lun->pr_keys[lun->pr_res_idx]) { 8321 /* validate scope and type */ 8322 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8323 SPR_LU_SCOPE) { 8324 mtx_unlock(&lun->lun_lock); 8325 ctl_set_invalid_field(/*ctsio*/ ctsio, 8326 /*sks_valid*/ 1, 8327 /*command*/ 1, 8328 /*field*/ 2, 8329 /*bit_valid*/ 1, 8330 /*bit*/ 4); 8331 ctl_done((union ctl_io *)ctsio); 8332 return (1); 8333 } 8334 8335 if (type>8 || type==2 || type==4 || type==0) { 8336 mtx_unlock(&lun->lun_lock); 8337 ctl_set_invalid_field(/*ctsio*/ ctsio, 8338 /*sks_valid*/ 1, 8339 /*command*/ 1, 8340 /*field*/ 2, 8341 /*bit_valid*/ 1, 8342 /*bit*/ 0); 8343 ctl_done((union ctl_io *)ctsio); 8344 return (1); 8345 } 8346 8347 /* 8348 * Do the following: 8349 * if sa_res_key != res_key remove all 8350 * registrants w/sa_res_key and generate UA 8351 * for these registrants(Registrations 8352 * Preempted) if it wasn't an exclusive 8353 * reservation generate UA(Reservations 8354 * Preempted) for all other registered nexuses 8355 * if the type has changed. Establish the new 8356 * reservation and holder. If res_key and 8357 * sa_res_key are the same do the above 8358 * except don't unregister the res holder. 8359 */ 8360 8361 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8362 if (i == residx || lun->pr_keys[i] == 0) 8363 continue; 8364 8365 if (sa_res_key == lun->pr_keys[i]) { 8366 lun->pr_keys[i] = 0; 8367 lun->pr_key_count--; 8368 8369 if (!persis_offset 8370 && i < CTL_MAX_INITIATORS) 8371 lun->pending_ua[i] |= 8372 CTL_UA_REG_PREEMPT; 8373 else if (persis_offset 8374 && i >= persis_offset) 8375 lun->pending_ua[i-persis_offset] |= 8376 CTL_UA_REG_PREEMPT; 8377 } else if (type != lun->res_type 8378 && (lun->res_type == SPR_TYPE_WR_EX_RO 8379 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 8380 if (!persis_offset 8381 && i < CTL_MAX_INITIATORS) 8382 lun->pending_ua[i] |= 8383 CTL_UA_RES_RELEASE; 8384 else if (persis_offset 8385 && i >= persis_offset) 8386 lun->pending_ua[ 8387 i-persis_offset] |= 8388 CTL_UA_RES_RELEASE; 8389 } 8390 } 8391 lun->res_type = type; 8392 if (lun->res_type != SPR_TYPE_WR_EX_AR 8393 && lun->res_type != SPR_TYPE_EX_AC_AR) 8394 lun->pr_res_idx = residx; 8395 else 8396 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8397 8398 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8399 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8400 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8401 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8402 persis_io.pr.pr_info.res_type = type; 8403 memcpy(persis_io.pr.pr_info.sa_res_key, 8404 param->serv_act_res_key, 8405 sizeof(param->serv_act_res_key)); 8406 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8407 &persis_io, sizeof(persis_io), 0)) > 8408 CTL_HA_STATUS_SUCCESS) { 8409 printf("CTL:Persis Out error returned " 8410 "from ctl_ha_msg_send %d\n", 8411 isc_retval); 8412 } 8413 } else { 8414 /* 8415 * sa_res_key is not the res holder just 8416 * remove registrants 8417 */ 8418 int found=0; 8419 8420 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8421 if (sa_res_key != lun->pr_keys[i]) 8422 continue; 8423 8424 found = 1; 8425 lun->pr_keys[i] = 0; 8426 lun->pr_key_count--; 8427 8428 if (!persis_offset 8429 && i < CTL_MAX_INITIATORS) 8430 lun->pending_ua[i] |= 8431 CTL_UA_REG_PREEMPT; 8432 else if (persis_offset 8433 && i >= persis_offset) 8434 lun->pending_ua[i-persis_offset] |= 8435 CTL_UA_REG_PREEMPT; 8436 } 8437 8438 if (!found) { 8439 mtx_unlock(&lun->lun_lock); 8440 free(ctsio->kern_data_ptr, M_CTL); 8441 ctl_set_reservation_conflict(ctsio); 8442 ctl_done((union ctl_io *)ctsio); 8443 return (1); 8444 } 8445 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8446 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8447 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8448 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8449 persis_io.pr.pr_info.res_type = type; 8450 memcpy(persis_io.pr.pr_info.sa_res_key, 8451 param->serv_act_res_key, 8452 sizeof(param->serv_act_res_key)); 8453 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8454 &persis_io, sizeof(persis_io), 0)) > 8455 CTL_HA_STATUS_SUCCESS) { 8456 printf("CTL:Persis Out error returned " 8457 "from ctl_ha_msg_send %d\n", 8458 isc_retval); 8459 } 8460 } 8461 } 8462 8463 lun->PRGeneration++; 8464 mtx_unlock(&lun->lun_lock); 8465 8466 return (retval); 8467} 8468 8469static void 8470ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8471{ 8472 uint64_t sa_res_key; 8473 int i; 8474 8475 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8476 8477 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8478 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8479 || sa_res_key != lun->pr_keys[lun->pr_res_idx]) { 8480 if (sa_res_key == 0) { 8481 /* 8482 * Unregister everybody else and build UA for 8483 * them 8484 */ 8485 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8486 if (i == msg->pr.pr_info.residx || 8487 lun->pr_keys[i] == 0) 8488 continue; 8489 8490 if (!persis_offset 8491 && i < CTL_MAX_INITIATORS) 8492 lun->pending_ua[i] |= 8493 CTL_UA_REG_PREEMPT; 8494 else if (persis_offset && i >= persis_offset) 8495 lun->pending_ua[i - persis_offset] |= 8496 CTL_UA_REG_PREEMPT; 8497 lun->pr_keys[i] = 0; 8498 } 8499 8500 lun->pr_key_count = 1; 8501 lun->res_type = msg->pr.pr_info.res_type; 8502 if (lun->res_type != SPR_TYPE_WR_EX_AR 8503 && lun->res_type != SPR_TYPE_EX_AC_AR) 8504 lun->pr_res_idx = msg->pr.pr_info.residx; 8505 } else { 8506 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8507 if (sa_res_key == lun->pr_keys[i]) 8508 continue; 8509 8510 lun->pr_keys[i] = 0; 8511 lun->pr_key_count--; 8512 8513 if (!persis_offset 8514 && i < persis_offset) 8515 lun->pending_ua[i] |= 8516 CTL_UA_REG_PREEMPT; 8517 else if (persis_offset 8518 && i >= persis_offset) 8519 lun->pending_ua[i - persis_offset] |= 8520 CTL_UA_REG_PREEMPT; 8521 } 8522 } 8523 } else { 8524 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8525 if (i == msg->pr.pr_info.residx || 8526 lun->pr_keys[i] == 0) 8527 continue; 8528 8529 if (sa_res_key == lun->pr_keys[i]) { 8530 lun->pr_keys[i] = 0; 8531 lun->pr_key_count--; 8532 if (!persis_offset 8533 && i < CTL_MAX_INITIATORS) 8534 lun->pending_ua[i] |= 8535 CTL_UA_REG_PREEMPT; 8536 else if (persis_offset 8537 && i >= persis_offset) 8538 lun->pending_ua[i - persis_offset] |= 8539 CTL_UA_REG_PREEMPT; 8540 } else if (msg->pr.pr_info.res_type != lun->res_type 8541 && (lun->res_type == SPR_TYPE_WR_EX_RO 8542 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8543 if (!persis_offset 8544 && i < persis_offset) 8545 lun->pending_ua[i] |= 8546 CTL_UA_RES_RELEASE; 8547 else if (persis_offset 8548 && i >= persis_offset) 8549 lun->pending_ua[i - persis_offset] |= 8550 CTL_UA_RES_RELEASE; 8551 } 8552 } 8553 lun->res_type = msg->pr.pr_info.res_type; 8554 if (lun->res_type != SPR_TYPE_WR_EX_AR 8555 && lun->res_type != SPR_TYPE_EX_AC_AR) 8556 lun->pr_res_idx = msg->pr.pr_info.residx; 8557 else 8558 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8559 } 8560 lun->PRGeneration++; 8561 8562} 8563 8564 8565int 8566ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8567{ 8568 int retval; 8569 int isc_retval; 8570 u_int32_t param_len; 8571 struct scsi_per_res_out *cdb; 8572 struct ctl_lun *lun; 8573 struct scsi_per_res_out_parms* param; 8574 struct ctl_softc *softc; 8575 uint32_t residx; 8576 uint64_t res_key, sa_res_key; 8577 uint8_t type; 8578 union ctl_ha_msg persis_io; 8579 int i; 8580 8581 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8582 8583 retval = CTL_RETVAL_COMPLETE; 8584 8585 softc = control_softc; 8586 8587 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8588 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8589 8590 /* 8591 * We only support whole-LUN scope. The scope & type are ignored for 8592 * register, register and ignore existing key and clear. 8593 * We sometimes ignore scope and type on preempts too!! 8594 * Verify reservation type here as well. 8595 */ 8596 type = cdb->scope_type & SPR_TYPE_MASK; 8597 if ((cdb->action == SPRO_RESERVE) 8598 || (cdb->action == SPRO_RELEASE)) { 8599 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8600 ctl_set_invalid_field(/*ctsio*/ ctsio, 8601 /*sks_valid*/ 1, 8602 /*command*/ 1, 8603 /*field*/ 2, 8604 /*bit_valid*/ 1, 8605 /*bit*/ 4); 8606 ctl_done((union ctl_io *)ctsio); 8607 return (CTL_RETVAL_COMPLETE); 8608 } 8609 8610 if (type>8 || type==2 || type==4 || type==0) { 8611 ctl_set_invalid_field(/*ctsio*/ ctsio, 8612 /*sks_valid*/ 1, 8613 /*command*/ 1, 8614 /*field*/ 2, 8615 /*bit_valid*/ 1, 8616 /*bit*/ 0); 8617 ctl_done((union ctl_io *)ctsio); 8618 return (CTL_RETVAL_COMPLETE); 8619 } 8620 } 8621 8622 param_len = scsi_4btoul(cdb->length); 8623 8624 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8625 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8626 ctsio->kern_data_len = param_len; 8627 ctsio->kern_total_len = param_len; 8628 ctsio->kern_data_resid = 0; 8629 ctsio->kern_rel_offset = 0; 8630 ctsio->kern_sg_entries = 0; 8631 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8632 ctsio->be_move_done = ctl_config_move_done; 8633 ctl_datamove((union ctl_io *)ctsio); 8634 8635 return (CTL_RETVAL_COMPLETE); 8636 } 8637 8638 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8639 8640 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8641 res_key = scsi_8btou64(param->res_key.key); 8642 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8643 8644 /* 8645 * Validate the reservation key here except for SPRO_REG_IGNO 8646 * This must be done for all other service actions 8647 */ 8648 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8649 mtx_lock(&lun->lun_lock); 8650 if (lun->pr_keys[residx] != 0) { 8651 if (res_key != lun->pr_keys[residx]) { 8652 /* 8653 * The current key passed in doesn't match 8654 * the one the initiator previously 8655 * registered. 8656 */ 8657 mtx_unlock(&lun->lun_lock); 8658 free(ctsio->kern_data_ptr, M_CTL); 8659 ctl_set_reservation_conflict(ctsio); 8660 ctl_done((union ctl_io *)ctsio); 8661 return (CTL_RETVAL_COMPLETE); 8662 } 8663 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8664 /* 8665 * We are not registered 8666 */ 8667 mtx_unlock(&lun->lun_lock); 8668 free(ctsio->kern_data_ptr, M_CTL); 8669 ctl_set_reservation_conflict(ctsio); 8670 ctl_done((union ctl_io *)ctsio); 8671 return (CTL_RETVAL_COMPLETE); 8672 } else if (res_key != 0) { 8673 /* 8674 * We are not registered and trying to register but 8675 * the register key isn't zero. 8676 */ 8677 mtx_unlock(&lun->lun_lock); 8678 free(ctsio->kern_data_ptr, M_CTL); 8679 ctl_set_reservation_conflict(ctsio); 8680 ctl_done((union ctl_io *)ctsio); 8681 return (CTL_RETVAL_COMPLETE); 8682 } 8683 mtx_unlock(&lun->lun_lock); 8684 } 8685 8686 switch (cdb->action & SPRO_ACTION_MASK) { 8687 case SPRO_REGISTER: 8688 case SPRO_REG_IGNO: { 8689 8690#if 0 8691 printf("Registration received\n"); 8692#endif 8693 8694 /* 8695 * We don't support any of these options, as we report in 8696 * the read capabilities request (see 8697 * ctl_persistent_reserve_in(), above). 8698 */ 8699 if ((param->flags & SPR_SPEC_I_PT) 8700 || (param->flags & SPR_ALL_TG_PT) 8701 || (param->flags & SPR_APTPL)) { 8702 int bit_ptr; 8703 8704 if (param->flags & SPR_APTPL) 8705 bit_ptr = 0; 8706 else if (param->flags & SPR_ALL_TG_PT) 8707 bit_ptr = 2; 8708 else /* SPR_SPEC_I_PT */ 8709 bit_ptr = 3; 8710 8711 free(ctsio->kern_data_ptr, M_CTL); 8712 ctl_set_invalid_field(ctsio, 8713 /*sks_valid*/ 1, 8714 /*command*/ 0, 8715 /*field*/ 20, 8716 /*bit_valid*/ 1, 8717 /*bit*/ bit_ptr); 8718 ctl_done((union ctl_io *)ctsio); 8719 return (CTL_RETVAL_COMPLETE); 8720 } 8721 8722 mtx_lock(&lun->lun_lock); 8723 8724 /* 8725 * The initiator wants to clear the 8726 * key/unregister. 8727 */ 8728 if (sa_res_key == 0) { 8729 if ((res_key == 0 8730 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8731 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8732 && lun->pr_keys[residx] == 0)) { 8733 mtx_unlock(&lun->lun_lock); 8734 goto done; 8735 } 8736 8737 lun->pr_keys[residx] = 0; 8738 lun->pr_key_count--; 8739 8740 if (residx == lun->pr_res_idx) { 8741 lun->flags &= ~CTL_LUN_PR_RESERVED; 8742 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8743 8744 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8745 || lun->res_type == SPR_TYPE_EX_AC_RO) 8746 && lun->pr_key_count) { 8747 /* 8748 * If the reservation is a registrants 8749 * only type we need to generate a UA 8750 * for other registered inits. The 8751 * sense code should be RESERVATIONS 8752 * RELEASED 8753 */ 8754 8755 for (i = 0; i < CTL_MAX_INITIATORS;i++){ 8756 if (lun->pr_keys[ 8757 i + persis_offset] == 0) 8758 continue; 8759 lun->pending_ua[i] |= 8760 CTL_UA_RES_RELEASE; 8761 } 8762 } 8763 lun->res_type = 0; 8764 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8765 if (lun->pr_key_count==0) { 8766 lun->flags &= ~CTL_LUN_PR_RESERVED; 8767 lun->res_type = 0; 8768 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8769 } 8770 } 8771 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8772 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8773 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8774 persis_io.pr.pr_info.residx = residx; 8775 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8776 &persis_io, sizeof(persis_io), 0 )) > 8777 CTL_HA_STATUS_SUCCESS) { 8778 printf("CTL:Persis Out error returned from " 8779 "ctl_ha_msg_send %d\n", isc_retval); 8780 } 8781 } else /* sa_res_key != 0 */ { 8782 8783 /* 8784 * If we aren't registered currently then increment 8785 * the key count and set the registered flag. 8786 */ 8787 if (lun->pr_keys[residx] == 0) 8788 lun->pr_key_count++; 8789 lun->pr_keys[residx] = sa_res_key; 8790 8791 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8792 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8793 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8794 persis_io.pr.pr_info.residx = residx; 8795 memcpy(persis_io.pr.pr_info.sa_res_key, 8796 param->serv_act_res_key, 8797 sizeof(param->serv_act_res_key)); 8798 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8799 &persis_io, sizeof(persis_io), 0)) > 8800 CTL_HA_STATUS_SUCCESS) { 8801 printf("CTL:Persis Out error returned from " 8802 "ctl_ha_msg_send %d\n", isc_retval); 8803 } 8804 } 8805 lun->PRGeneration++; 8806 mtx_unlock(&lun->lun_lock); 8807 8808 break; 8809 } 8810 case SPRO_RESERVE: 8811#if 0 8812 printf("Reserve executed type %d\n", type); 8813#endif 8814 mtx_lock(&lun->lun_lock); 8815 if (lun->flags & CTL_LUN_PR_RESERVED) { 8816 /* 8817 * if this isn't the reservation holder and it's 8818 * not a "all registrants" type or if the type is 8819 * different then we have a conflict 8820 */ 8821 if ((lun->pr_res_idx != residx 8822 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8823 || lun->res_type != type) { 8824 mtx_unlock(&lun->lun_lock); 8825 free(ctsio->kern_data_ptr, M_CTL); 8826 ctl_set_reservation_conflict(ctsio); 8827 ctl_done((union ctl_io *)ctsio); 8828 return (CTL_RETVAL_COMPLETE); 8829 } 8830 mtx_unlock(&lun->lun_lock); 8831 } else /* create a reservation */ { 8832 /* 8833 * If it's not an "all registrants" type record 8834 * reservation holder 8835 */ 8836 if (type != SPR_TYPE_WR_EX_AR 8837 && type != SPR_TYPE_EX_AC_AR) 8838 lun->pr_res_idx = residx; /* Res holder */ 8839 else 8840 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8841 8842 lun->flags |= CTL_LUN_PR_RESERVED; 8843 lun->res_type = type; 8844 8845 mtx_unlock(&lun->lun_lock); 8846 8847 /* send msg to other side */ 8848 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8849 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8850 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8851 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8852 persis_io.pr.pr_info.res_type = type; 8853 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8854 &persis_io, sizeof(persis_io), 0)) > 8855 CTL_HA_STATUS_SUCCESS) { 8856 printf("CTL:Persis Out error returned from " 8857 "ctl_ha_msg_send %d\n", isc_retval); 8858 } 8859 } 8860 break; 8861 8862 case SPRO_RELEASE: 8863 mtx_lock(&lun->lun_lock); 8864 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8865 /* No reservation exists return good status */ 8866 mtx_unlock(&lun->lun_lock); 8867 goto done; 8868 } 8869 /* 8870 * Is this nexus a reservation holder? 8871 */ 8872 if (lun->pr_res_idx != residx 8873 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8874 /* 8875 * not a res holder return good status but 8876 * do nothing 8877 */ 8878 mtx_unlock(&lun->lun_lock); 8879 goto done; 8880 } 8881 8882 if (lun->res_type != type) { 8883 mtx_unlock(&lun->lun_lock); 8884 free(ctsio->kern_data_ptr, M_CTL); 8885 ctl_set_illegal_pr_release(ctsio); 8886 ctl_done((union ctl_io *)ctsio); 8887 return (CTL_RETVAL_COMPLETE); 8888 } 8889 8890 /* okay to release */ 8891 lun->flags &= ~CTL_LUN_PR_RESERVED; 8892 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8893 lun->res_type = 0; 8894 8895 /* 8896 * if this isn't an exclusive access 8897 * res generate UA for all other 8898 * registrants. 8899 */ 8900 if (type != SPR_TYPE_EX_AC 8901 && type != SPR_TYPE_WR_EX) { 8902 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8903 if (i == residx || 8904 lun->pr_keys[i + persis_offset] == 0) 8905 continue; 8906 lun->pending_ua[i] |= CTL_UA_RES_RELEASE; 8907 } 8908 } 8909 mtx_unlock(&lun->lun_lock); 8910 /* Send msg to other side */ 8911 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8912 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8913 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8914 if ((isc_retval=ctl_ha_msg_send( CTL_HA_CHAN_CTL, &persis_io, 8915 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8916 printf("CTL:Persis Out error returned from " 8917 "ctl_ha_msg_send %d\n", isc_retval); 8918 } 8919 break; 8920 8921 case SPRO_CLEAR: 8922 /* send msg to other side */ 8923 8924 mtx_lock(&lun->lun_lock); 8925 lun->flags &= ~CTL_LUN_PR_RESERVED; 8926 lun->res_type = 0; 8927 lun->pr_key_count = 0; 8928 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8929 8930 lun->pr_keys[residx] = 0; 8931 8932 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) 8933 if (lun->pr_keys[i] != 0) { 8934 if (!persis_offset && i < CTL_MAX_INITIATORS) 8935 lun->pending_ua[i] |= 8936 CTL_UA_RES_PREEMPT; 8937 else if (persis_offset && i >= persis_offset) 8938 lun->pending_ua[i-persis_offset] |= 8939 CTL_UA_RES_PREEMPT; 8940 8941 lun->pr_keys[i] = 0; 8942 } 8943 lun->PRGeneration++; 8944 mtx_unlock(&lun->lun_lock); 8945 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8946 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8947 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8948 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8949 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8950 printf("CTL:Persis Out error returned from " 8951 "ctl_ha_msg_send %d\n", isc_retval); 8952 } 8953 break; 8954 8955 case SPRO_PREEMPT: 8956 case SPRO_PRE_ABO: { 8957 int nretval; 8958 8959 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8960 residx, ctsio, cdb, param); 8961 if (nretval != 0) 8962 return (CTL_RETVAL_COMPLETE); 8963 break; 8964 } 8965 default: 8966 panic("Invalid PR type %x", cdb->action); 8967 } 8968 8969done: 8970 free(ctsio->kern_data_ptr, M_CTL); 8971 ctl_set_success(ctsio); 8972 ctl_done((union ctl_io *)ctsio); 8973 8974 return (retval); 8975} 8976 8977/* 8978 * This routine is for handling a message from the other SC pertaining to 8979 * persistent reserve out. All the error checking will have been done 8980 * so only perorming the action need be done here to keep the two 8981 * in sync. 8982 */ 8983static void 8984ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8985{ 8986 struct ctl_lun *lun; 8987 struct ctl_softc *softc; 8988 int i; 8989 uint32_t targ_lun; 8990 8991 softc = control_softc; 8992 8993 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8994 lun = softc->ctl_luns[targ_lun]; 8995 mtx_lock(&lun->lun_lock); 8996 switch(msg->pr.pr_info.action) { 8997 case CTL_PR_REG_KEY: 8998 if (lun->pr_keys[msg->pr.pr_info.residx] == 0) 8999 lun->pr_key_count++; 9000 lun->pr_keys[msg->pr.pr_info.residx] = 9001 scsi_8btou64(msg->pr.pr_info.sa_res_key); 9002 lun->PRGeneration++; 9003 break; 9004 9005 case CTL_PR_UNREG_KEY: 9006 lun->pr_keys[msg->pr.pr_info.residx] = 0; 9007 lun->pr_key_count--; 9008 9009 /* XXX Need to see if the reservation has been released */ 9010 /* if so do we need to generate UA? */ 9011 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 9012 lun->flags &= ~CTL_LUN_PR_RESERVED; 9013 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 9014 9015 if ((lun->res_type == SPR_TYPE_WR_EX_RO 9016 || lun->res_type == SPR_TYPE_EX_AC_RO) 9017 && lun->pr_key_count) { 9018 /* 9019 * If the reservation is a registrants 9020 * only type we need to generate a UA 9021 * for other registered inits. The 9022 * sense code should be RESERVATIONS 9023 * RELEASED 9024 */ 9025 9026 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 9027 if (lun->pr_keys[i+ 9028 persis_offset] == 0) 9029 continue; 9030 9031 lun->pending_ua[i] |= 9032 CTL_UA_RES_RELEASE; 9033 } 9034 } 9035 lun->res_type = 0; 9036 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 9037 if (lun->pr_key_count==0) { 9038 lun->flags &= ~CTL_LUN_PR_RESERVED; 9039 lun->res_type = 0; 9040 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 9041 } 9042 } 9043 lun->PRGeneration++; 9044 break; 9045 9046 case CTL_PR_RESERVE: 9047 lun->flags |= CTL_LUN_PR_RESERVED; 9048 lun->res_type = msg->pr.pr_info.res_type; 9049 lun->pr_res_idx = msg->pr.pr_info.residx; 9050 9051 break; 9052 9053 case CTL_PR_RELEASE: 9054 /* 9055 * if this isn't an exclusive access res generate UA for all 9056 * other registrants. 9057 */ 9058 if (lun->res_type != SPR_TYPE_EX_AC 9059 && lun->res_type != SPR_TYPE_WR_EX) { 9060 for (i = 0; i < CTL_MAX_INITIATORS; i++) 9061 if (lun->pr_keys[i+persis_offset] != 0) 9062 lun->pending_ua[i] |= 9063 CTL_UA_RES_RELEASE; 9064 } 9065 9066 lun->flags &= ~CTL_LUN_PR_RESERVED; 9067 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 9068 lun->res_type = 0; 9069 break; 9070 9071 case CTL_PR_PREEMPT: 9072 ctl_pro_preempt_other(lun, msg); 9073 break; 9074 case CTL_PR_CLEAR: 9075 lun->flags &= ~CTL_LUN_PR_RESERVED; 9076 lun->res_type = 0; 9077 lun->pr_key_count = 0; 9078 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 9079 9080 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 9081 if (lun->pr_keys[i] == 0) 9082 continue; 9083 if (!persis_offset 9084 && i < CTL_MAX_INITIATORS) 9085 lun->pending_ua[i] |= CTL_UA_RES_PREEMPT; 9086 else if (persis_offset 9087 && i >= persis_offset) 9088 lun->pending_ua[i-persis_offset] |= 9089 CTL_UA_RES_PREEMPT; 9090 lun->pr_keys[i] = 0; 9091 } 9092 lun->PRGeneration++; 9093 break; 9094 } 9095 9096 mtx_unlock(&lun->lun_lock); 9097} 9098 9099int 9100ctl_read_write(struct ctl_scsiio *ctsio) 9101{ 9102 struct ctl_lun *lun; 9103 struct ctl_lba_len_flags *lbalen; 9104 uint64_t lba; 9105 uint32_t num_blocks; 9106 int flags, retval; 9107 int isread; 9108 9109 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9110 9111 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 9112 9113 flags = 0; 9114 retval = CTL_RETVAL_COMPLETE; 9115 9116 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 9117 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 9118 switch (ctsio->cdb[0]) { 9119 case READ_6: 9120 case WRITE_6: { 9121 struct scsi_rw_6 *cdb; 9122 9123 cdb = (struct scsi_rw_6 *)ctsio->cdb; 9124 9125 lba = scsi_3btoul(cdb->addr); 9126 /* only 5 bits are valid in the most significant address byte */ 9127 lba &= 0x1fffff; 9128 num_blocks = cdb->length; 9129 /* 9130 * This is correct according to SBC-2. 9131 */ 9132 if (num_blocks == 0) 9133 num_blocks = 256; 9134 break; 9135 } 9136 case READ_10: 9137 case WRITE_10: { 9138 struct scsi_rw_10 *cdb; 9139 9140 cdb = (struct scsi_rw_10 *)ctsio->cdb; 9141 if (cdb->byte2 & SRW10_FUA) 9142 flags |= CTL_LLF_FUA; 9143 if (cdb->byte2 & SRW10_DPO) 9144 flags |= CTL_LLF_DPO; 9145 lba = scsi_4btoul(cdb->addr); 9146 num_blocks = scsi_2btoul(cdb->length); 9147 break; 9148 } 9149 case WRITE_VERIFY_10: { 9150 struct scsi_write_verify_10 *cdb; 9151 9152 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 9153 flags |= CTL_LLF_FUA; 9154 if (cdb->byte2 & SWV_DPO) 9155 flags |= CTL_LLF_DPO; 9156 lba = scsi_4btoul(cdb->addr); 9157 num_blocks = scsi_2btoul(cdb->length); 9158 break; 9159 } 9160 case READ_12: 9161 case WRITE_12: { 9162 struct scsi_rw_12 *cdb; 9163 9164 cdb = (struct scsi_rw_12 *)ctsio->cdb; 9165 if (cdb->byte2 & SRW12_FUA) 9166 flags |= CTL_LLF_FUA; 9167 if (cdb->byte2 & SRW12_DPO) 9168 flags |= CTL_LLF_DPO; 9169 lba = scsi_4btoul(cdb->addr); 9170 num_blocks = scsi_4btoul(cdb->length); 9171 break; 9172 } 9173 case WRITE_VERIFY_12: { 9174 struct scsi_write_verify_12 *cdb; 9175 9176 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 9177 flags |= CTL_LLF_FUA; 9178 if (cdb->byte2 & SWV_DPO) 9179 flags |= CTL_LLF_DPO; 9180 lba = scsi_4btoul(cdb->addr); 9181 num_blocks = scsi_4btoul(cdb->length); 9182 break; 9183 } 9184 case READ_16: 9185 case WRITE_16: { 9186 struct scsi_rw_16 *cdb; 9187 9188 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9189 if (cdb->byte2 & SRW12_FUA) 9190 flags |= CTL_LLF_FUA; 9191 if (cdb->byte2 & SRW12_DPO) 9192 flags |= CTL_LLF_DPO; 9193 lba = scsi_8btou64(cdb->addr); 9194 num_blocks = scsi_4btoul(cdb->length); 9195 break; 9196 } 9197 case WRITE_ATOMIC_16: { 9198 struct scsi_rw_16 *cdb; 9199 9200 if (lun->be_lun->atomicblock == 0) { 9201 ctl_set_invalid_opcode(ctsio); 9202 ctl_done((union ctl_io *)ctsio); 9203 return (CTL_RETVAL_COMPLETE); 9204 } 9205 9206 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9207 if (cdb->byte2 & SRW12_FUA) 9208 flags |= CTL_LLF_FUA; 9209 if (cdb->byte2 & SRW12_DPO) 9210 flags |= CTL_LLF_DPO; 9211 lba = scsi_8btou64(cdb->addr); 9212 num_blocks = scsi_4btoul(cdb->length); 9213 if (num_blocks > lun->be_lun->atomicblock) { 9214 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 9215 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 9216 /*bit*/ 0); 9217 ctl_done((union ctl_io *)ctsio); 9218 return (CTL_RETVAL_COMPLETE); 9219 } 9220 break; 9221 } 9222 case WRITE_VERIFY_16: { 9223 struct scsi_write_verify_16 *cdb; 9224 9225 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 9226 flags |= CTL_LLF_FUA; 9227 if (cdb->byte2 & SWV_DPO) 9228 flags |= CTL_LLF_DPO; 9229 lba = scsi_8btou64(cdb->addr); 9230 num_blocks = scsi_4btoul(cdb->length); 9231 break; 9232 } 9233 default: 9234 /* 9235 * We got a command we don't support. This shouldn't 9236 * happen, commands should be filtered out above us. 9237 */ 9238 ctl_set_invalid_opcode(ctsio); 9239 ctl_done((union ctl_io *)ctsio); 9240 9241 return (CTL_RETVAL_COMPLETE); 9242 break; /* NOTREACHED */ 9243 } 9244 9245 /* 9246 * The first check is to make sure we're in bounds, the second 9247 * check is to catch wrap-around problems. If the lba + num blocks 9248 * is less than the lba, then we've wrapped around and the block 9249 * range is invalid anyway. 9250 */ 9251 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9252 || ((lba + num_blocks) < lba)) { 9253 ctl_set_lba_out_of_range(ctsio); 9254 ctl_done((union ctl_io *)ctsio); 9255 return (CTL_RETVAL_COMPLETE); 9256 } 9257 9258 /* 9259 * According to SBC-3, a transfer length of 0 is not an error. 9260 * Note that this cannot happen with WRITE(6) or READ(6), since 0 9261 * translates to 256 blocks for those commands. 9262 */ 9263 if (num_blocks == 0) { 9264 ctl_set_success(ctsio); 9265 ctl_done((union ctl_io *)ctsio); 9266 return (CTL_RETVAL_COMPLETE); 9267 } 9268 9269 /* Set FUA and/or DPO if caches are disabled. */ 9270 if (isread) { 9271 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9272 SCP_RCD) != 0) 9273 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 9274 } else { 9275 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9276 SCP_WCE) == 0) 9277 flags |= CTL_LLF_FUA; 9278 } 9279 9280 lbalen = (struct ctl_lba_len_flags *) 9281 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9282 lbalen->lba = lba; 9283 lbalen->len = num_blocks; 9284 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 9285 9286 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9287 ctsio->kern_rel_offset = 0; 9288 9289 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 9290 9291 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9292 9293 return (retval); 9294} 9295 9296static int 9297ctl_cnw_cont(union ctl_io *io) 9298{ 9299 struct ctl_scsiio *ctsio; 9300 struct ctl_lun *lun; 9301 struct ctl_lba_len_flags *lbalen; 9302 int retval; 9303 9304 ctsio = &io->scsiio; 9305 ctsio->io_hdr.status = CTL_STATUS_NONE; 9306 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 9307 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9308 lbalen = (struct ctl_lba_len_flags *) 9309 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9310 lbalen->flags &= ~CTL_LLF_COMPARE; 9311 lbalen->flags |= CTL_LLF_WRITE; 9312 9313 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 9314 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9315 return (retval); 9316} 9317 9318int 9319ctl_cnw(struct ctl_scsiio *ctsio) 9320{ 9321 struct ctl_lun *lun; 9322 struct ctl_lba_len_flags *lbalen; 9323 uint64_t lba; 9324 uint32_t num_blocks; 9325 int flags, retval; 9326 9327 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9328 9329 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 9330 9331 flags = 0; 9332 retval = CTL_RETVAL_COMPLETE; 9333 9334 switch (ctsio->cdb[0]) { 9335 case COMPARE_AND_WRITE: { 9336 struct scsi_compare_and_write *cdb; 9337 9338 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 9339 if (cdb->byte2 & SRW10_FUA) 9340 flags |= CTL_LLF_FUA; 9341 if (cdb->byte2 & SRW10_DPO) 9342 flags |= CTL_LLF_DPO; 9343 lba = scsi_8btou64(cdb->addr); 9344 num_blocks = cdb->length; 9345 break; 9346 } 9347 default: 9348 /* 9349 * We got a command we don't support. This shouldn't 9350 * happen, commands should be filtered out above us. 9351 */ 9352 ctl_set_invalid_opcode(ctsio); 9353 ctl_done((union ctl_io *)ctsio); 9354 9355 return (CTL_RETVAL_COMPLETE); 9356 break; /* NOTREACHED */ 9357 } 9358 9359 /* 9360 * The first check is to make sure we're in bounds, the second 9361 * check is to catch wrap-around problems. If the lba + num blocks 9362 * is less than the lba, then we've wrapped around and the block 9363 * range is invalid anyway. 9364 */ 9365 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9366 || ((lba + num_blocks) < lba)) { 9367 ctl_set_lba_out_of_range(ctsio); 9368 ctl_done((union ctl_io *)ctsio); 9369 return (CTL_RETVAL_COMPLETE); 9370 } 9371 9372 /* 9373 * According to SBC-3, a transfer length of 0 is not an error. 9374 */ 9375 if (num_blocks == 0) { 9376 ctl_set_success(ctsio); 9377 ctl_done((union ctl_io *)ctsio); 9378 return (CTL_RETVAL_COMPLETE); 9379 } 9380 9381 /* Set FUA if write cache is disabled. */ 9382 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9383 SCP_WCE) == 0) 9384 flags |= CTL_LLF_FUA; 9385 9386 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 9387 ctsio->kern_rel_offset = 0; 9388 9389 /* 9390 * Set the IO_CONT flag, so that if this I/O gets passed to 9391 * ctl_data_submit_done(), it'll get passed back to 9392 * ctl_ctl_cnw_cont() for further processing. 9393 */ 9394 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 9395 ctsio->io_cont = ctl_cnw_cont; 9396 9397 lbalen = (struct ctl_lba_len_flags *) 9398 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9399 lbalen->lba = lba; 9400 lbalen->len = num_blocks; 9401 lbalen->flags = CTL_LLF_COMPARE | flags; 9402 9403 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 9404 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9405 return (retval); 9406} 9407 9408int 9409ctl_verify(struct ctl_scsiio *ctsio) 9410{ 9411 struct ctl_lun *lun; 9412 struct ctl_lba_len_flags *lbalen; 9413 uint64_t lba; 9414 uint32_t num_blocks; 9415 int bytchk, flags; 9416 int retval; 9417 9418 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9419 9420 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 9421 9422 bytchk = 0; 9423 flags = CTL_LLF_FUA; 9424 retval = CTL_RETVAL_COMPLETE; 9425 9426 switch (ctsio->cdb[0]) { 9427 case VERIFY_10: { 9428 struct scsi_verify_10 *cdb; 9429 9430 cdb = (struct scsi_verify_10 *)ctsio->cdb; 9431 if (cdb->byte2 & SVFY_BYTCHK) 9432 bytchk = 1; 9433 if (cdb->byte2 & SVFY_DPO) 9434 flags |= CTL_LLF_DPO; 9435 lba = scsi_4btoul(cdb->addr); 9436 num_blocks = scsi_2btoul(cdb->length); 9437 break; 9438 } 9439 case VERIFY_12: { 9440 struct scsi_verify_12 *cdb; 9441 9442 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9443 if (cdb->byte2 & SVFY_BYTCHK) 9444 bytchk = 1; 9445 if (cdb->byte2 & SVFY_DPO) 9446 flags |= CTL_LLF_DPO; 9447 lba = scsi_4btoul(cdb->addr); 9448 num_blocks = scsi_4btoul(cdb->length); 9449 break; 9450 } 9451 case VERIFY_16: { 9452 struct scsi_rw_16 *cdb; 9453 9454 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9455 if (cdb->byte2 & SVFY_BYTCHK) 9456 bytchk = 1; 9457 if (cdb->byte2 & SVFY_DPO) 9458 flags |= CTL_LLF_DPO; 9459 lba = scsi_8btou64(cdb->addr); 9460 num_blocks = scsi_4btoul(cdb->length); 9461 break; 9462 } 9463 default: 9464 /* 9465 * We got a command we don't support. This shouldn't 9466 * happen, commands should be filtered out above us. 9467 */ 9468 ctl_set_invalid_opcode(ctsio); 9469 ctl_done((union ctl_io *)ctsio); 9470 return (CTL_RETVAL_COMPLETE); 9471 } 9472 9473 /* 9474 * The first check is to make sure we're in bounds, the second 9475 * check is to catch wrap-around problems. If the lba + num blocks 9476 * is less than the lba, then we've wrapped around and the block 9477 * range is invalid anyway. 9478 */ 9479 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9480 || ((lba + num_blocks) < lba)) { 9481 ctl_set_lba_out_of_range(ctsio); 9482 ctl_done((union ctl_io *)ctsio); 9483 return (CTL_RETVAL_COMPLETE); 9484 } 9485 9486 /* 9487 * According to SBC-3, a transfer length of 0 is not an error. 9488 */ 9489 if (num_blocks == 0) { 9490 ctl_set_success(ctsio); 9491 ctl_done((union ctl_io *)ctsio); 9492 return (CTL_RETVAL_COMPLETE); 9493 } 9494 9495 lbalen = (struct ctl_lba_len_flags *) 9496 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9497 lbalen->lba = lba; 9498 lbalen->len = num_blocks; 9499 if (bytchk) { 9500 lbalen->flags = CTL_LLF_COMPARE | flags; 9501 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9502 } else { 9503 lbalen->flags = CTL_LLF_VERIFY | flags; 9504 ctsio->kern_total_len = 0; 9505 } 9506 ctsio->kern_rel_offset = 0; 9507 9508 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9509 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9510 return (retval); 9511} 9512 9513int 9514ctl_report_luns(struct ctl_scsiio *ctsio) 9515{ 9516 struct scsi_report_luns *cdb; 9517 struct scsi_report_luns_data *lun_data; 9518 struct ctl_lun *lun, *request_lun; 9519 int num_luns, retval; 9520 uint32_t alloc_len, lun_datalen; 9521 int num_filled, well_known; 9522 uint32_t initidx, targ_lun_id, lun_id; 9523 9524 retval = CTL_RETVAL_COMPLETE; 9525 well_known = 0; 9526 9527 cdb = (struct scsi_report_luns *)ctsio->cdb; 9528 9529 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9530 9531 mtx_lock(&control_softc->ctl_lock); 9532 num_luns = control_softc->num_luns; 9533 mtx_unlock(&control_softc->ctl_lock); 9534 9535 switch (cdb->select_report) { 9536 case RPL_REPORT_DEFAULT: 9537 case RPL_REPORT_ALL: 9538 break; 9539 case RPL_REPORT_WELLKNOWN: 9540 well_known = 1; 9541 num_luns = 0; 9542 break; 9543 default: 9544 ctl_set_invalid_field(ctsio, 9545 /*sks_valid*/ 1, 9546 /*command*/ 1, 9547 /*field*/ 2, 9548 /*bit_valid*/ 0, 9549 /*bit*/ 0); 9550 ctl_done((union ctl_io *)ctsio); 9551 return (retval); 9552 break; /* NOTREACHED */ 9553 } 9554 9555 alloc_len = scsi_4btoul(cdb->length); 9556 /* 9557 * The initiator has to allocate at least 16 bytes for this request, 9558 * so he can at least get the header and the first LUN. Otherwise 9559 * we reject the request (per SPC-3 rev 14, section 6.21). 9560 */ 9561 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9562 sizeof(struct scsi_report_luns_lundata))) { 9563 ctl_set_invalid_field(ctsio, 9564 /*sks_valid*/ 1, 9565 /*command*/ 1, 9566 /*field*/ 6, 9567 /*bit_valid*/ 0, 9568 /*bit*/ 0); 9569 ctl_done((union ctl_io *)ctsio); 9570 return (retval); 9571 } 9572 9573 request_lun = (struct ctl_lun *) 9574 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9575 9576 lun_datalen = sizeof(*lun_data) + 9577 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9578 9579 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9580 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9581 ctsio->kern_sg_entries = 0; 9582 9583 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9584 9585 mtx_lock(&control_softc->ctl_lock); 9586 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9587 lun_id = ctl_map_lun(ctsio->io_hdr.nexus.targ_port, targ_lun_id); 9588 if (lun_id >= CTL_MAX_LUNS) 9589 continue; 9590 lun = control_softc->ctl_luns[lun_id]; 9591 if (lun == NULL) 9592 continue; 9593 9594 if (targ_lun_id <= 0xff) { 9595 /* 9596 * Peripheral addressing method, bus number 0. 9597 */ 9598 lun_data->luns[num_filled].lundata[0] = 9599 RPL_LUNDATA_ATYP_PERIPH; 9600 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9601 num_filled++; 9602 } else if (targ_lun_id <= 0x3fff) { 9603 /* 9604 * Flat addressing method. 9605 */ 9606 lun_data->luns[num_filled].lundata[0] = 9607 RPL_LUNDATA_ATYP_FLAT | (targ_lun_id >> 8); 9608 lun_data->luns[num_filled].lundata[1] = 9609 (targ_lun_id & 0xff); 9610 num_filled++; 9611 } else if (targ_lun_id <= 0xffffff) { 9612 /* 9613 * Extended flat addressing method. 9614 */ 9615 lun_data->luns[num_filled].lundata[0] = 9616 RPL_LUNDATA_ATYP_EXTLUN | 0x12; 9617 scsi_ulto3b(targ_lun_id, 9618 &lun_data->luns[num_filled].lundata[1]); 9619 num_filled++; 9620 } else { 9621 printf("ctl_report_luns: bogus LUN number %jd, " 9622 "skipping\n", (intmax_t)targ_lun_id); 9623 } 9624 /* 9625 * According to SPC-3, rev 14 section 6.21: 9626 * 9627 * "The execution of a REPORT LUNS command to any valid and 9628 * installed logical unit shall clear the REPORTED LUNS DATA 9629 * HAS CHANGED unit attention condition for all logical 9630 * units of that target with respect to the requesting 9631 * initiator. A valid and installed logical unit is one 9632 * having a PERIPHERAL QUALIFIER of 000b in the standard 9633 * INQUIRY data (see 6.4.2)." 9634 * 9635 * If request_lun is NULL, the LUN this report luns command 9636 * was issued to is either disabled or doesn't exist. In that 9637 * case, we shouldn't clear any pending lun change unit 9638 * attention. 9639 */ 9640 if (request_lun != NULL) { 9641 mtx_lock(&lun->lun_lock); 9642 lun->pending_ua[initidx] &= ~CTL_UA_LUN_CHANGE; 9643 mtx_unlock(&lun->lun_lock); 9644 } 9645 } 9646 mtx_unlock(&control_softc->ctl_lock); 9647 9648 /* 9649 * It's quite possible that we've returned fewer LUNs than we allocated 9650 * space for. Trim it. 9651 */ 9652 lun_datalen = sizeof(*lun_data) + 9653 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9654 9655 if (lun_datalen < alloc_len) { 9656 ctsio->residual = alloc_len - lun_datalen; 9657 ctsio->kern_data_len = lun_datalen; 9658 ctsio->kern_total_len = lun_datalen; 9659 } else { 9660 ctsio->residual = 0; 9661 ctsio->kern_data_len = alloc_len; 9662 ctsio->kern_total_len = alloc_len; 9663 } 9664 ctsio->kern_data_resid = 0; 9665 ctsio->kern_rel_offset = 0; 9666 ctsio->kern_sg_entries = 0; 9667 9668 /* 9669 * We set this to the actual data length, regardless of how much 9670 * space we actually have to return results. If the user looks at 9671 * this value, he'll know whether or not he allocated enough space 9672 * and reissue the command if necessary. We don't support well 9673 * known logical units, so if the user asks for that, return none. 9674 */ 9675 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9676 9677 /* 9678 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9679 * this request. 9680 */ 9681 ctsio->scsi_status = SCSI_STATUS_OK; 9682 9683 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9684 ctsio->be_move_done = ctl_config_move_done; 9685 ctl_datamove((union ctl_io *)ctsio); 9686 9687 return (retval); 9688} 9689 9690int 9691ctl_request_sense(struct ctl_scsiio *ctsio) 9692{ 9693 struct scsi_request_sense *cdb; 9694 struct scsi_sense_data *sense_ptr; 9695 struct ctl_lun *lun; 9696 uint32_t initidx; 9697 int have_error; 9698 scsi_sense_data_type sense_format; 9699 9700 cdb = (struct scsi_request_sense *)ctsio->cdb; 9701 9702 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9703 9704 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9705 9706 /* 9707 * Determine which sense format the user wants. 9708 */ 9709 if (cdb->byte2 & SRS_DESC) 9710 sense_format = SSD_TYPE_DESC; 9711 else 9712 sense_format = SSD_TYPE_FIXED; 9713 9714 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9715 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9716 ctsio->kern_sg_entries = 0; 9717 9718 /* 9719 * struct scsi_sense_data, which is currently set to 256 bytes, is 9720 * larger than the largest allowed value for the length field in the 9721 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9722 */ 9723 ctsio->residual = 0; 9724 ctsio->kern_data_len = cdb->length; 9725 ctsio->kern_total_len = cdb->length; 9726 9727 ctsio->kern_data_resid = 0; 9728 ctsio->kern_rel_offset = 0; 9729 ctsio->kern_sg_entries = 0; 9730 9731 /* 9732 * If we don't have a LUN, we don't have any pending sense. 9733 */ 9734 if (lun == NULL) 9735 goto no_sense; 9736 9737 have_error = 0; 9738 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9739 /* 9740 * Check for pending sense, and then for pending unit attentions. 9741 * Pending sense gets returned first, then pending unit attentions. 9742 */ 9743 mtx_lock(&lun->lun_lock); 9744#ifdef CTL_WITH_CA 9745 if (ctl_is_set(lun->have_ca, initidx)) { 9746 scsi_sense_data_type stored_format; 9747 9748 /* 9749 * Check to see which sense format was used for the stored 9750 * sense data. 9751 */ 9752 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9753 9754 /* 9755 * If the user requested a different sense format than the 9756 * one we stored, then we need to convert it to the other 9757 * format. If we're going from descriptor to fixed format 9758 * sense data, we may lose things in translation, depending 9759 * on what options were used. 9760 * 9761 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9762 * for some reason we'll just copy it out as-is. 9763 */ 9764 if ((stored_format == SSD_TYPE_FIXED) 9765 && (sense_format == SSD_TYPE_DESC)) 9766 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9767 &lun->pending_sense[initidx], 9768 (struct scsi_sense_data_desc *)sense_ptr); 9769 else if ((stored_format == SSD_TYPE_DESC) 9770 && (sense_format == SSD_TYPE_FIXED)) 9771 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9772 &lun->pending_sense[initidx], 9773 (struct scsi_sense_data_fixed *)sense_ptr); 9774 else 9775 memcpy(sense_ptr, &lun->pending_sense[initidx], 9776 ctl_min(sizeof(*sense_ptr), 9777 sizeof(lun->pending_sense[initidx]))); 9778 9779 ctl_clear_mask(lun->have_ca, initidx); 9780 have_error = 1; 9781 } else 9782#endif 9783 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 9784 ctl_ua_type ua_type; 9785 9786 ua_type = ctl_build_ua(&lun->pending_ua[initidx], 9787 sense_ptr, sense_format); 9788 if (ua_type != CTL_UA_NONE) 9789 have_error = 1; 9790 } 9791 mtx_unlock(&lun->lun_lock); 9792 9793 /* 9794 * We already have a pending error, return it. 9795 */ 9796 if (have_error != 0) { 9797 /* 9798 * We report the SCSI status as OK, since the status of the 9799 * request sense command itself is OK. 9800 */ 9801 ctsio->scsi_status = SCSI_STATUS_OK; 9802 9803 /* 9804 * We report 0 for the sense length, because we aren't doing 9805 * autosense in this case. We're reporting sense as 9806 * parameter data. 9807 */ 9808 ctsio->sense_len = 0; 9809 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9810 ctsio->be_move_done = ctl_config_move_done; 9811 ctl_datamove((union ctl_io *)ctsio); 9812 9813 return (CTL_RETVAL_COMPLETE); 9814 } 9815 9816no_sense: 9817 9818 /* 9819 * No sense information to report, so we report that everything is 9820 * okay. 9821 */ 9822 ctl_set_sense_data(sense_ptr, 9823 lun, 9824 sense_format, 9825 /*current_error*/ 1, 9826 /*sense_key*/ SSD_KEY_NO_SENSE, 9827 /*asc*/ 0x00, 9828 /*ascq*/ 0x00, 9829 SSD_ELEM_NONE); 9830 9831 ctsio->scsi_status = SCSI_STATUS_OK; 9832 9833 /* 9834 * We report 0 for the sense length, because we aren't doing 9835 * autosense in this case. We're reporting sense as parameter data. 9836 */ 9837 ctsio->sense_len = 0; 9838 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9839 ctsio->be_move_done = ctl_config_move_done; 9840 ctl_datamove((union ctl_io *)ctsio); 9841 9842 return (CTL_RETVAL_COMPLETE); 9843} 9844 9845int 9846ctl_tur(struct ctl_scsiio *ctsio) 9847{ 9848 struct ctl_lun *lun; 9849 9850 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9851 9852 CTL_DEBUG_PRINT(("ctl_tur\n")); 9853 9854 if (lun == NULL) 9855 return (EINVAL); 9856 9857 ctsio->scsi_status = SCSI_STATUS_OK; 9858 ctsio->io_hdr.status = CTL_SUCCESS; 9859 9860 ctl_done((union ctl_io *)ctsio); 9861 9862 return (CTL_RETVAL_COMPLETE); 9863} 9864 9865#ifdef notyet 9866static int 9867ctl_cmddt_inquiry(struct ctl_scsiio *ctsio) 9868{ 9869 9870} 9871#endif 9872 9873static int 9874ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9875{ 9876 struct scsi_vpd_supported_pages *pages; 9877 int sup_page_size; 9878 struct ctl_lun *lun; 9879 9880 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9881 9882 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9883 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9884 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9885 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9886 ctsio->kern_sg_entries = 0; 9887 9888 if (sup_page_size < alloc_len) { 9889 ctsio->residual = alloc_len - sup_page_size; 9890 ctsio->kern_data_len = sup_page_size; 9891 ctsio->kern_total_len = sup_page_size; 9892 } else { 9893 ctsio->residual = 0; 9894 ctsio->kern_data_len = alloc_len; 9895 ctsio->kern_total_len = alloc_len; 9896 } 9897 ctsio->kern_data_resid = 0; 9898 ctsio->kern_rel_offset = 0; 9899 ctsio->kern_sg_entries = 0; 9900 9901 /* 9902 * The control device is always connected. The disk device, on the 9903 * other hand, may not be online all the time. Need to change this 9904 * to figure out whether the disk device is actually online or not. 9905 */ 9906 if (lun != NULL) 9907 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9908 lun->be_lun->lun_type; 9909 else 9910 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9911 9912 pages->length = SCSI_EVPD_NUM_SUPPORTED_PAGES; 9913 /* Supported VPD pages */ 9914 pages->page_list[0] = SVPD_SUPPORTED_PAGES; 9915 /* Serial Number */ 9916 pages->page_list[1] = SVPD_UNIT_SERIAL_NUMBER; 9917 /* Device Identification */ 9918 pages->page_list[2] = SVPD_DEVICE_ID; 9919 /* Extended INQUIRY Data */ 9920 pages->page_list[3] = SVPD_EXTENDED_INQUIRY_DATA; 9921 /* Mode Page Policy */ 9922 pages->page_list[4] = SVPD_MODE_PAGE_POLICY; 9923 /* SCSI Ports */ 9924 pages->page_list[5] = SVPD_SCSI_PORTS; 9925 /* Third-party Copy */ 9926 pages->page_list[6] = SVPD_SCSI_TPC; 9927 /* Block limits */ 9928 pages->page_list[7] = SVPD_BLOCK_LIMITS; 9929 /* Block Device Characteristics */ 9930 pages->page_list[8] = SVPD_BDC; 9931 /* Logical Block Provisioning */ 9932 pages->page_list[9] = SVPD_LBP; 9933 9934 ctsio->scsi_status = SCSI_STATUS_OK; 9935 9936 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9937 ctsio->be_move_done = ctl_config_move_done; 9938 ctl_datamove((union ctl_io *)ctsio); 9939 9940 return (CTL_RETVAL_COMPLETE); 9941} 9942 9943static int 9944ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9945{ 9946 struct scsi_vpd_unit_serial_number *sn_ptr; 9947 struct ctl_lun *lun; 9948 int data_len; 9949 9950 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9951 9952 data_len = 4 + CTL_SN_LEN; 9953 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9954 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9955 if (data_len < alloc_len) { 9956 ctsio->residual = alloc_len - data_len; 9957 ctsio->kern_data_len = data_len; 9958 ctsio->kern_total_len = data_len; 9959 } else { 9960 ctsio->residual = 0; 9961 ctsio->kern_data_len = alloc_len; 9962 ctsio->kern_total_len = alloc_len; 9963 } 9964 ctsio->kern_data_resid = 0; 9965 ctsio->kern_rel_offset = 0; 9966 ctsio->kern_sg_entries = 0; 9967 9968 /* 9969 * The control device is always connected. The disk device, on the 9970 * other hand, may not be online all the time. Need to change this 9971 * to figure out whether the disk device is actually online or not. 9972 */ 9973 if (lun != NULL) 9974 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9975 lun->be_lun->lun_type; 9976 else 9977 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9978 9979 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9980 sn_ptr->length = CTL_SN_LEN; 9981 /* 9982 * If we don't have a LUN, we just leave the serial number as 9983 * all spaces. 9984 */ 9985 if (lun != NULL) { 9986 strncpy((char *)sn_ptr->serial_num, 9987 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9988 } else 9989 memset(sn_ptr->serial_num, 0x20, CTL_SN_LEN); 9990 ctsio->scsi_status = SCSI_STATUS_OK; 9991 9992 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9993 ctsio->be_move_done = ctl_config_move_done; 9994 ctl_datamove((union ctl_io *)ctsio); 9995 9996 return (CTL_RETVAL_COMPLETE); 9997} 9998 9999 10000static int 10001ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 10002{ 10003 struct scsi_vpd_extended_inquiry_data *eid_ptr; 10004 struct ctl_lun *lun; 10005 int data_len; 10006 10007 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10008 10009 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 10010 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10011 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 10012 ctsio->kern_sg_entries = 0; 10013 10014 if (data_len < alloc_len) { 10015 ctsio->residual = alloc_len - data_len; 10016 ctsio->kern_data_len = data_len; 10017 ctsio->kern_total_len = data_len; 10018 } else { 10019 ctsio->residual = 0; 10020 ctsio->kern_data_len = alloc_len; 10021 ctsio->kern_total_len = alloc_len; 10022 } 10023 ctsio->kern_data_resid = 0; 10024 ctsio->kern_rel_offset = 0; 10025 ctsio->kern_sg_entries = 0; 10026 10027 /* 10028 * The control device is always connected. The disk device, on the 10029 * other hand, may not be online all the time. 10030 */ 10031 if (lun != NULL) 10032 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10033 lun->be_lun->lun_type; 10034 else 10035 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10036 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 10037 eid_ptr->page_length = data_len - 4; 10038 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 10039 eid_ptr->flags3 = SVPD_EID_V_SUP; 10040 10041 ctsio->scsi_status = SCSI_STATUS_OK; 10042 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10043 ctsio->be_move_done = ctl_config_move_done; 10044 ctl_datamove((union ctl_io *)ctsio); 10045 10046 return (CTL_RETVAL_COMPLETE); 10047} 10048 10049static int 10050ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 10051{ 10052 struct scsi_vpd_mode_page_policy *mpp_ptr; 10053 struct ctl_lun *lun; 10054 int data_len; 10055 10056 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10057 10058 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 10059 sizeof(struct scsi_vpd_mode_page_policy_descr); 10060 10061 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10062 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 10063 ctsio->kern_sg_entries = 0; 10064 10065 if (data_len < alloc_len) { 10066 ctsio->residual = alloc_len - data_len; 10067 ctsio->kern_data_len = data_len; 10068 ctsio->kern_total_len = data_len; 10069 } else { 10070 ctsio->residual = 0; 10071 ctsio->kern_data_len = alloc_len; 10072 ctsio->kern_total_len = alloc_len; 10073 } 10074 ctsio->kern_data_resid = 0; 10075 ctsio->kern_rel_offset = 0; 10076 ctsio->kern_sg_entries = 0; 10077 10078 /* 10079 * The control device is always connected. The disk device, on the 10080 * other hand, may not be online all the time. 10081 */ 10082 if (lun != NULL) 10083 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10084 lun->be_lun->lun_type; 10085 else 10086 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10087 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 10088 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 10089 mpp_ptr->descr[0].page_code = 0x3f; 10090 mpp_ptr->descr[0].subpage_code = 0xff; 10091 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 10092 10093 ctsio->scsi_status = SCSI_STATUS_OK; 10094 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10095 ctsio->be_move_done = ctl_config_move_done; 10096 ctl_datamove((union ctl_io *)ctsio); 10097 10098 return (CTL_RETVAL_COMPLETE); 10099} 10100 10101static int 10102ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 10103{ 10104 struct scsi_vpd_device_id *devid_ptr; 10105 struct scsi_vpd_id_descriptor *desc; 10106 struct ctl_softc *ctl_softc; 10107 struct ctl_lun *lun; 10108 struct ctl_port *port; 10109 int data_len; 10110 uint8_t proto; 10111 10112 ctl_softc = control_softc; 10113 10114 port = ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]; 10115 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10116 10117 data_len = sizeof(struct scsi_vpd_device_id) + 10118 sizeof(struct scsi_vpd_id_descriptor) + 10119 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 10120 sizeof(struct scsi_vpd_id_descriptor) + 10121 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 10122 if (lun && lun->lun_devid) 10123 data_len += lun->lun_devid->len; 10124 if (port->port_devid) 10125 data_len += port->port_devid->len; 10126 if (port->target_devid) 10127 data_len += port->target_devid->len; 10128 10129 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10130 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 10131 ctsio->kern_sg_entries = 0; 10132 10133 if (data_len < alloc_len) { 10134 ctsio->residual = alloc_len - data_len; 10135 ctsio->kern_data_len = data_len; 10136 ctsio->kern_total_len = data_len; 10137 } else { 10138 ctsio->residual = 0; 10139 ctsio->kern_data_len = alloc_len; 10140 ctsio->kern_total_len = alloc_len; 10141 } 10142 ctsio->kern_data_resid = 0; 10143 ctsio->kern_rel_offset = 0; 10144 ctsio->kern_sg_entries = 0; 10145 10146 /* 10147 * The control device is always connected. The disk device, on the 10148 * other hand, may not be online all the time. 10149 */ 10150 if (lun != NULL) 10151 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10152 lun->be_lun->lun_type; 10153 else 10154 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10155 devid_ptr->page_code = SVPD_DEVICE_ID; 10156 scsi_ulto2b(data_len - 4, devid_ptr->length); 10157 10158 if (port->port_type == CTL_PORT_FC) 10159 proto = SCSI_PROTO_FC << 4; 10160 else if (port->port_type == CTL_PORT_ISCSI) 10161 proto = SCSI_PROTO_ISCSI << 4; 10162 else 10163 proto = SCSI_PROTO_SPI << 4; 10164 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 10165 10166 /* 10167 * We're using a LUN association here. i.e., this device ID is a 10168 * per-LUN identifier. 10169 */ 10170 if (lun && lun->lun_devid) { 10171 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 10172 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 10173 lun->lun_devid->len); 10174 } 10175 10176 /* 10177 * This is for the WWPN which is a port association. 10178 */ 10179 if (port->port_devid) { 10180 memcpy(desc, port->port_devid->data, port->port_devid->len); 10181 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 10182 port->port_devid->len); 10183 } 10184 10185 /* 10186 * This is for the Relative Target Port(type 4h) identifier 10187 */ 10188 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 10189 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 10190 SVPD_ID_TYPE_RELTARG; 10191 desc->length = 4; 10192 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 10193 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 10194 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 10195 10196 /* 10197 * This is for the Target Port Group(type 5h) identifier 10198 */ 10199 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 10200 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 10201 SVPD_ID_TYPE_TPORTGRP; 10202 desc->length = 4; 10203 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS + 1, 10204 &desc->identifier[2]); 10205 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 10206 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 10207 10208 /* 10209 * This is for the Target identifier 10210 */ 10211 if (port->target_devid) { 10212 memcpy(desc, port->target_devid->data, port->target_devid->len); 10213 } 10214 10215 ctsio->scsi_status = SCSI_STATUS_OK; 10216 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10217 ctsio->be_move_done = ctl_config_move_done; 10218 ctl_datamove((union ctl_io *)ctsio); 10219 10220 return (CTL_RETVAL_COMPLETE); 10221} 10222 10223static int 10224ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 10225{ 10226 struct ctl_softc *softc = control_softc; 10227 struct scsi_vpd_scsi_ports *sp; 10228 struct scsi_vpd_port_designation *pd; 10229 struct scsi_vpd_port_designation_cont *pdc; 10230 struct ctl_lun *lun; 10231 struct ctl_port *port; 10232 int data_len, num_target_ports, iid_len, id_len, g, pg, p; 10233 int num_target_port_groups; 10234 10235 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10236 10237 if (softc->is_single) 10238 num_target_port_groups = 1; 10239 else 10240 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 10241 num_target_ports = 0; 10242 iid_len = 0; 10243 id_len = 0; 10244 mtx_lock(&softc->ctl_lock); 10245 STAILQ_FOREACH(port, &softc->port_list, links) { 10246 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10247 continue; 10248 if (lun != NULL && 10249 ctl_map_lun_back(port->targ_port, lun->lun) >= 10250 CTL_MAX_LUNS) 10251 continue; 10252 num_target_ports++; 10253 if (port->init_devid) 10254 iid_len += port->init_devid->len; 10255 if (port->port_devid) 10256 id_len += port->port_devid->len; 10257 } 10258 mtx_unlock(&softc->ctl_lock); 10259 10260 data_len = sizeof(struct scsi_vpd_scsi_ports) + num_target_port_groups * 10261 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 10262 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 10263 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10264 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 10265 ctsio->kern_sg_entries = 0; 10266 10267 if (data_len < alloc_len) { 10268 ctsio->residual = alloc_len - data_len; 10269 ctsio->kern_data_len = data_len; 10270 ctsio->kern_total_len = data_len; 10271 } else { 10272 ctsio->residual = 0; 10273 ctsio->kern_data_len = alloc_len; 10274 ctsio->kern_total_len = alloc_len; 10275 } 10276 ctsio->kern_data_resid = 0; 10277 ctsio->kern_rel_offset = 0; 10278 ctsio->kern_sg_entries = 0; 10279 10280 /* 10281 * The control device is always connected. The disk device, on the 10282 * other hand, may not be online all the time. Need to change this 10283 * to figure out whether the disk device is actually online or not. 10284 */ 10285 if (lun != NULL) 10286 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 10287 lun->be_lun->lun_type; 10288 else 10289 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10290 10291 sp->page_code = SVPD_SCSI_PORTS; 10292 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 10293 sp->page_length); 10294 pd = &sp->design[0]; 10295 10296 mtx_lock(&softc->ctl_lock); 10297 pg = softc->port_offset / CTL_MAX_PORTS; 10298 for (g = 0; g < num_target_port_groups; g++) { 10299 STAILQ_FOREACH(port, &softc->port_list, links) { 10300 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10301 continue; 10302 if (lun != NULL && 10303 ctl_map_lun_back(port->targ_port, lun->lun) >= 10304 CTL_MAX_LUNS) 10305 continue; 10306 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 10307 scsi_ulto2b(p, pd->relative_port_id); 10308 if (port->init_devid && g == pg) { 10309 iid_len = port->init_devid->len; 10310 memcpy(pd->initiator_transportid, 10311 port->init_devid->data, port->init_devid->len); 10312 } else 10313 iid_len = 0; 10314 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 10315 pdc = (struct scsi_vpd_port_designation_cont *) 10316 (&pd->initiator_transportid[iid_len]); 10317 if (port->port_devid && g == pg) { 10318 id_len = port->port_devid->len; 10319 memcpy(pdc->target_port_descriptors, 10320 port->port_devid->data, port->port_devid->len); 10321 } else 10322 id_len = 0; 10323 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 10324 pd = (struct scsi_vpd_port_designation *) 10325 ((uint8_t *)pdc->target_port_descriptors + id_len); 10326 } 10327 } 10328 mtx_unlock(&softc->ctl_lock); 10329 10330 ctsio->scsi_status = SCSI_STATUS_OK; 10331 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10332 ctsio->be_move_done = ctl_config_move_done; 10333 ctl_datamove((union ctl_io *)ctsio); 10334 10335 return (CTL_RETVAL_COMPLETE); 10336} 10337 10338static int 10339ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 10340{ 10341 struct scsi_vpd_block_limits *bl_ptr; 10342 struct ctl_lun *lun; 10343 int bs; 10344 10345 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10346 10347 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 10348 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 10349 ctsio->kern_sg_entries = 0; 10350 10351 if (sizeof(*bl_ptr) < alloc_len) { 10352 ctsio->residual = alloc_len - sizeof(*bl_ptr); 10353 ctsio->kern_data_len = sizeof(*bl_ptr); 10354 ctsio->kern_total_len = sizeof(*bl_ptr); 10355 } else { 10356 ctsio->residual = 0; 10357 ctsio->kern_data_len = alloc_len; 10358 ctsio->kern_total_len = alloc_len; 10359 } 10360 ctsio->kern_data_resid = 0; 10361 ctsio->kern_rel_offset = 0; 10362 ctsio->kern_sg_entries = 0; 10363 10364 /* 10365 * The control device is always connected. The disk device, on the 10366 * other hand, may not be online all the time. Need to change this 10367 * to figure out whether the disk device is actually online or not. 10368 */ 10369 if (lun != NULL) 10370 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10371 lun->be_lun->lun_type; 10372 else 10373 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10374 10375 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 10376 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 10377 bl_ptr->max_cmp_write_len = 0xff; 10378 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 10379 if (lun != NULL) { 10380 bs = lun->be_lun->blocksize; 10381 scsi_ulto4b(MAXPHYS / bs, bl_ptr->opt_txfer_len); 10382 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10383 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 10384 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 10385 if (lun->be_lun->pblockexp != 0) { 10386 scsi_ulto4b((1 << lun->be_lun->pblockexp), 10387 bl_ptr->opt_unmap_grain); 10388 scsi_ulto4b(0x80000000 | lun->be_lun->pblockoff, 10389 bl_ptr->unmap_grain_align); 10390 } 10391 } 10392 scsi_ulto4b(lun->be_lun->atomicblock, 10393 bl_ptr->max_atomic_transfer_length); 10394 scsi_ulto4b(0, bl_ptr->atomic_alignment); 10395 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 10396 } 10397 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 10398 10399 ctsio->scsi_status = SCSI_STATUS_OK; 10400 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10401 ctsio->be_move_done = ctl_config_move_done; 10402 ctl_datamove((union ctl_io *)ctsio); 10403 10404 return (CTL_RETVAL_COMPLETE); 10405} 10406 10407static int 10408ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 10409{ 10410 struct scsi_vpd_block_device_characteristics *bdc_ptr; 10411 struct ctl_lun *lun; 10412 const char *value; 10413 u_int i; 10414 10415 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10416 10417 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 10418 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 10419 ctsio->kern_sg_entries = 0; 10420 10421 if (sizeof(*bdc_ptr) < alloc_len) { 10422 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 10423 ctsio->kern_data_len = sizeof(*bdc_ptr); 10424 ctsio->kern_total_len = sizeof(*bdc_ptr); 10425 } else { 10426 ctsio->residual = 0; 10427 ctsio->kern_data_len = alloc_len; 10428 ctsio->kern_total_len = alloc_len; 10429 } 10430 ctsio->kern_data_resid = 0; 10431 ctsio->kern_rel_offset = 0; 10432 ctsio->kern_sg_entries = 0; 10433 10434 /* 10435 * The control device is always connected. The disk device, on the 10436 * other hand, may not be online all the time. Need to change this 10437 * to figure out whether the disk device is actually online or not. 10438 */ 10439 if (lun != NULL) 10440 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10441 lun->be_lun->lun_type; 10442 else 10443 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10444 bdc_ptr->page_code = SVPD_BDC; 10445 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 10446 if (lun != NULL && 10447 (value = ctl_get_opt(&lun->be_lun->options, "rpm")) != NULL) 10448 i = strtol(value, NULL, 0); 10449 else 10450 i = CTL_DEFAULT_ROTATION_RATE; 10451 scsi_ulto2b(i, bdc_ptr->medium_rotation_rate); 10452 if (lun != NULL && 10453 (value = ctl_get_opt(&lun->be_lun->options, "formfactor")) != NULL) 10454 i = strtol(value, NULL, 0); 10455 else 10456 i = 0; 10457 bdc_ptr->wab_wac_ff = (i & 0x0f); 10458 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 10459 10460 ctsio->scsi_status = SCSI_STATUS_OK; 10461 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10462 ctsio->be_move_done = ctl_config_move_done; 10463 ctl_datamove((union ctl_io *)ctsio); 10464 10465 return (CTL_RETVAL_COMPLETE); 10466} 10467 10468static int 10469ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10470{ 10471 struct scsi_vpd_logical_block_prov *lbp_ptr; 10472 struct ctl_lun *lun; 10473 10474 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10475 10476 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10477 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10478 ctsio->kern_sg_entries = 0; 10479 10480 if (sizeof(*lbp_ptr) < alloc_len) { 10481 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10482 ctsio->kern_data_len = sizeof(*lbp_ptr); 10483 ctsio->kern_total_len = sizeof(*lbp_ptr); 10484 } else { 10485 ctsio->residual = 0; 10486 ctsio->kern_data_len = alloc_len; 10487 ctsio->kern_total_len = alloc_len; 10488 } 10489 ctsio->kern_data_resid = 0; 10490 ctsio->kern_rel_offset = 0; 10491 ctsio->kern_sg_entries = 0; 10492 10493 /* 10494 * The control device is always connected. The disk device, on the 10495 * other hand, may not be online all the time. Need to change this 10496 * to figure out whether the disk device is actually online or not. 10497 */ 10498 if (lun != NULL) 10499 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10500 lun->be_lun->lun_type; 10501 else 10502 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10503 10504 lbp_ptr->page_code = SVPD_LBP; 10505 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10506 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10507 lbp_ptr->threshold_exponent = CTL_LBP_EXPONENT; 10508 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10509 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10510 lbp_ptr->prov_type = SVPD_LBP_THIN; 10511 } 10512 10513 ctsio->scsi_status = SCSI_STATUS_OK; 10514 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10515 ctsio->be_move_done = ctl_config_move_done; 10516 ctl_datamove((union ctl_io *)ctsio); 10517 10518 return (CTL_RETVAL_COMPLETE); 10519} 10520 10521static int 10522ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10523{ 10524 struct scsi_inquiry *cdb; 10525 struct ctl_lun *lun; 10526 int alloc_len, retval; 10527 10528 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10529 cdb = (struct scsi_inquiry *)ctsio->cdb; 10530 10531 retval = CTL_RETVAL_COMPLETE; 10532 10533 alloc_len = scsi_2btoul(cdb->length); 10534 10535 switch (cdb->page_code) { 10536 case SVPD_SUPPORTED_PAGES: 10537 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10538 break; 10539 case SVPD_UNIT_SERIAL_NUMBER: 10540 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10541 break; 10542 case SVPD_DEVICE_ID: 10543 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10544 break; 10545 case SVPD_EXTENDED_INQUIRY_DATA: 10546 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10547 break; 10548 case SVPD_MODE_PAGE_POLICY: 10549 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10550 break; 10551 case SVPD_SCSI_PORTS: 10552 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10553 break; 10554 case SVPD_SCSI_TPC: 10555 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10556 break; 10557 case SVPD_BLOCK_LIMITS: 10558 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10559 break; 10560 case SVPD_BDC: 10561 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10562 break; 10563 case SVPD_LBP: 10564 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10565 break; 10566 default: 10567 ctl_set_invalid_field(ctsio, 10568 /*sks_valid*/ 1, 10569 /*command*/ 1, 10570 /*field*/ 2, 10571 /*bit_valid*/ 0, 10572 /*bit*/ 0); 10573 ctl_done((union ctl_io *)ctsio); 10574 retval = CTL_RETVAL_COMPLETE; 10575 break; 10576 } 10577 10578 return (retval); 10579} 10580 10581static int 10582ctl_inquiry_std(struct ctl_scsiio *ctsio) 10583{ 10584 struct scsi_inquiry_data *inq_ptr; 10585 struct scsi_inquiry *cdb; 10586 struct ctl_softc *ctl_softc; 10587 struct ctl_lun *lun; 10588 char *val; 10589 uint32_t alloc_len, data_len; 10590 ctl_port_type port_type; 10591 10592 ctl_softc = control_softc; 10593 10594 /* 10595 * Figure out whether we're talking to a Fibre Channel port or not. 10596 * We treat the ioctl front end, and any SCSI adapters, as packetized 10597 * SCSI front ends. 10598 */ 10599 port_type = ctl_softc->ctl_ports[ 10600 ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]->port_type; 10601 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10602 port_type = CTL_PORT_SCSI; 10603 10604 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10605 cdb = (struct scsi_inquiry *)ctsio->cdb; 10606 alloc_len = scsi_2btoul(cdb->length); 10607 10608 /* 10609 * We malloc the full inquiry data size here and fill it 10610 * in. If the user only asks for less, we'll give him 10611 * that much. 10612 */ 10613 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10614 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10615 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10616 ctsio->kern_sg_entries = 0; 10617 ctsio->kern_data_resid = 0; 10618 ctsio->kern_rel_offset = 0; 10619 10620 if (data_len < alloc_len) { 10621 ctsio->residual = alloc_len - data_len; 10622 ctsio->kern_data_len = data_len; 10623 ctsio->kern_total_len = data_len; 10624 } else { 10625 ctsio->residual = 0; 10626 ctsio->kern_data_len = alloc_len; 10627 ctsio->kern_total_len = alloc_len; 10628 } 10629 10630 /* 10631 * If we have a LUN configured, report it as connected. Otherwise, 10632 * report that it is offline or no device is supported, depending 10633 * on the value of inquiry_pq_no_lun. 10634 * 10635 * According to the spec (SPC-4 r34), the peripheral qualifier 10636 * SID_QUAL_LU_OFFLINE (001b) is used in the following scenario: 10637 * 10638 * "A peripheral device having the specified peripheral device type 10639 * is not connected to this logical unit. However, the device 10640 * server is capable of supporting the specified peripheral device 10641 * type on this logical unit." 10642 * 10643 * According to the same spec, the peripheral qualifier 10644 * SID_QUAL_BAD_LU (011b) is used in this scenario: 10645 * 10646 * "The device server is not capable of supporting a peripheral 10647 * device on this logical unit. For this peripheral qualifier the 10648 * peripheral device type shall be set to 1Fh. All other peripheral 10649 * device type values are reserved for this peripheral qualifier." 10650 * 10651 * Given the text, it would seem that we probably want to report that 10652 * the LUN is offline here. There is no LUN connected, but we can 10653 * support a LUN at the given LUN number. 10654 * 10655 * In the real world, though, it sounds like things are a little 10656 * different: 10657 * 10658 * - Linux, when presented with a LUN with the offline peripheral 10659 * qualifier, will create an sg driver instance for it. So when 10660 * you attach it to CTL, you wind up with a ton of sg driver 10661 * instances. (One for every LUN that Linux bothered to probe.) 10662 * Linux does this despite the fact that it issues a REPORT LUNs 10663 * to LUN 0 to get the inventory of supported LUNs. 10664 * 10665 * - There is other anecdotal evidence (from Emulex folks) about 10666 * arrays that use the offline peripheral qualifier for LUNs that 10667 * are on the "passive" path in an active/passive array. 10668 * 10669 * So the solution is provide a hopefully reasonable default 10670 * (return bad/no LUN) and allow the user to change the behavior 10671 * with a tunable/sysctl variable. 10672 */ 10673 if (lun != NULL) 10674 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10675 lun->be_lun->lun_type; 10676 else if (ctl_softc->inquiry_pq_no_lun == 0) 10677 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10678 else 10679 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10680 10681 /* RMB in byte 2 is 0 */ 10682 inq_ptr->version = SCSI_REV_SPC4; 10683 10684 /* 10685 * According to SAM-3, even if a device only supports a single 10686 * level of LUN addressing, it should still set the HISUP bit: 10687 * 10688 * 4.9.1 Logical unit numbers overview 10689 * 10690 * All logical unit number formats described in this standard are 10691 * hierarchical in structure even when only a single level in that 10692 * hierarchy is used. The HISUP bit shall be set to one in the 10693 * standard INQUIRY data (see SPC-2) when any logical unit number 10694 * format described in this standard is used. Non-hierarchical 10695 * formats are outside the scope of this standard. 10696 * 10697 * Therefore we set the HiSup bit here. 10698 * 10699 * The reponse format is 2, per SPC-3. 10700 */ 10701 inq_ptr->response_format = SID_HiSup | 2; 10702 10703 inq_ptr->additional_length = data_len - 10704 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10705 CTL_DEBUG_PRINT(("additional_length = %d\n", 10706 inq_ptr->additional_length)); 10707 10708 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10709 /* 16 bit addressing */ 10710 if (port_type == CTL_PORT_SCSI) 10711 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10712 /* XXX set the SID_MultiP bit here if we're actually going to 10713 respond on multiple ports */ 10714 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10715 10716 /* 16 bit data bus, synchronous transfers */ 10717 if (port_type == CTL_PORT_SCSI) 10718 inq_ptr->flags = SID_WBus16 | SID_Sync; 10719 /* 10720 * XXX KDM do we want to support tagged queueing on the control 10721 * device at all? 10722 */ 10723 if ((lun == NULL) 10724 || (lun->be_lun->lun_type != T_PROCESSOR)) 10725 inq_ptr->flags |= SID_CmdQue; 10726 /* 10727 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10728 * We have 8 bytes for the vendor name, and 16 bytes for the device 10729 * name and 4 bytes for the revision. 10730 */ 10731 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10732 "vendor")) == NULL) { 10733 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10734 } else { 10735 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10736 strncpy(inq_ptr->vendor, val, 10737 min(sizeof(inq_ptr->vendor), strlen(val))); 10738 } 10739 if (lun == NULL) { 10740 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10741 sizeof(inq_ptr->product)); 10742 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10743 switch (lun->be_lun->lun_type) { 10744 case T_DIRECT: 10745 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10746 sizeof(inq_ptr->product)); 10747 break; 10748 case T_PROCESSOR: 10749 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10750 sizeof(inq_ptr->product)); 10751 break; 10752 default: 10753 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10754 sizeof(inq_ptr->product)); 10755 break; 10756 } 10757 } else { 10758 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10759 strncpy(inq_ptr->product, val, 10760 min(sizeof(inq_ptr->product), strlen(val))); 10761 } 10762 10763 /* 10764 * XXX make this a macro somewhere so it automatically gets 10765 * incremented when we make changes. 10766 */ 10767 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10768 "revision")) == NULL) { 10769 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10770 } else { 10771 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10772 strncpy(inq_ptr->revision, val, 10773 min(sizeof(inq_ptr->revision), strlen(val))); 10774 } 10775 10776 /* 10777 * For parallel SCSI, we support double transition and single 10778 * transition clocking. We also support QAS (Quick Arbitration 10779 * and Selection) and Information Unit transfers on both the 10780 * control and array devices. 10781 */ 10782 if (port_type == CTL_PORT_SCSI) 10783 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10784 SID_SPI_IUS; 10785 10786 /* SAM-5 (no version claimed) */ 10787 scsi_ulto2b(0x00A0, inq_ptr->version1); 10788 /* SPC-4 (no version claimed) */ 10789 scsi_ulto2b(0x0460, inq_ptr->version2); 10790 if (port_type == CTL_PORT_FC) { 10791 /* FCP-2 ANSI INCITS.350:2003 */ 10792 scsi_ulto2b(0x0917, inq_ptr->version3); 10793 } else if (port_type == CTL_PORT_SCSI) { 10794 /* SPI-4 ANSI INCITS.362:200x */ 10795 scsi_ulto2b(0x0B56, inq_ptr->version3); 10796 } else if (port_type == CTL_PORT_ISCSI) { 10797 /* iSCSI (no version claimed) */ 10798 scsi_ulto2b(0x0960, inq_ptr->version3); 10799 } else if (port_type == CTL_PORT_SAS) { 10800 /* SAS (no version claimed) */ 10801 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10802 } 10803 10804 if (lun == NULL) { 10805 /* SBC-4 (no version claimed) */ 10806 scsi_ulto2b(0x0600, inq_ptr->version4); 10807 } else { 10808 switch (lun->be_lun->lun_type) { 10809 case T_DIRECT: 10810 /* SBC-4 (no version claimed) */ 10811 scsi_ulto2b(0x0600, inq_ptr->version4); 10812 break; 10813 case T_PROCESSOR: 10814 default: 10815 break; 10816 } 10817 } 10818 10819 ctsio->scsi_status = SCSI_STATUS_OK; 10820 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10821 ctsio->be_move_done = ctl_config_move_done; 10822 ctl_datamove((union ctl_io *)ctsio); 10823 return (CTL_RETVAL_COMPLETE); 10824} 10825 10826int 10827ctl_inquiry(struct ctl_scsiio *ctsio) 10828{ 10829 struct scsi_inquiry *cdb; 10830 int retval; 10831 10832 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10833 10834 cdb = (struct scsi_inquiry *)ctsio->cdb; 10835 if (cdb->byte2 & SI_EVPD) 10836 retval = ctl_inquiry_evpd(ctsio); 10837 else if (cdb->page_code == 0) 10838 retval = ctl_inquiry_std(ctsio); 10839 else { 10840 ctl_set_invalid_field(ctsio, 10841 /*sks_valid*/ 1, 10842 /*command*/ 1, 10843 /*field*/ 2, 10844 /*bit_valid*/ 0, 10845 /*bit*/ 0); 10846 ctl_done((union ctl_io *)ctsio); 10847 return (CTL_RETVAL_COMPLETE); 10848 } 10849 10850 return (retval); 10851} 10852 10853/* 10854 * For known CDB types, parse the LBA and length. 10855 */ 10856static int 10857ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10858{ 10859 if (io->io_hdr.io_type != CTL_IO_SCSI) 10860 return (1); 10861 10862 switch (io->scsiio.cdb[0]) { 10863 case COMPARE_AND_WRITE: { 10864 struct scsi_compare_and_write *cdb; 10865 10866 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10867 10868 *lba = scsi_8btou64(cdb->addr); 10869 *len = cdb->length; 10870 break; 10871 } 10872 case READ_6: 10873 case WRITE_6: { 10874 struct scsi_rw_6 *cdb; 10875 10876 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10877 10878 *lba = scsi_3btoul(cdb->addr); 10879 /* only 5 bits are valid in the most significant address byte */ 10880 *lba &= 0x1fffff; 10881 *len = cdb->length; 10882 break; 10883 } 10884 case READ_10: 10885 case WRITE_10: { 10886 struct scsi_rw_10 *cdb; 10887 10888 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10889 10890 *lba = scsi_4btoul(cdb->addr); 10891 *len = scsi_2btoul(cdb->length); 10892 break; 10893 } 10894 case WRITE_VERIFY_10: { 10895 struct scsi_write_verify_10 *cdb; 10896 10897 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10898 10899 *lba = scsi_4btoul(cdb->addr); 10900 *len = scsi_2btoul(cdb->length); 10901 break; 10902 } 10903 case READ_12: 10904 case WRITE_12: { 10905 struct scsi_rw_12 *cdb; 10906 10907 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10908 10909 *lba = scsi_4btoul(cdb->addr); 10910 *len = scsi_4btoul(cdb->length); 10911 break; 10912 } 10913 case WRITE_VERIFY_12: { 10914 struct scsi_write_verify_12 *cdb; 10915 10916 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10917 10918 *lba = scsi_4btoul(cdb->addr); 10919 *len = scsi_4btoul(cdb->length); 10920 break; 10921 } 10922 case READ_16: 10923 case WRITE_16: 10924 case WRITE_ATOMIC_16: { 10925 struct scsi_rw_16 *cdb; 10926 10927 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10928 10929 *lba = scsi_8btou64(cdb->addr); 10930 *len = scsi_4btoul(cdb->length); 10931 break; 10932 } 10933 case WRITE_VERIFY_16: { 10934 struct scsi_write_verify_16 *cdb; 10935 10936 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10937 10938 *lba = scsi_8btou64(cdb->addr); 10939 *len = scsi_4btoul(cdb->length); 10940 break; 10941 } 10942 case WRITE_SAME_10: { 10943 struct scsi_write_same_10 *cdb; 10944 10945 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10946 10947 *lba = scsi_4btoul(cdb->addr); 10948 *len = scsi_2btoul(cdb->length); 10949 break; 10950 } 10951 case WRITE_SAME_16: { 10952 struct scsi_write_same_16 *cdb; 10953 10954 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10955 10956 *lba = scsi_8btou64(cdb->addr); 10957 *len = scsi_4btoul(cdb->length); 10958 break; 10959 } 10960 case VERIFY_10: { 10961 struct scsi_verify_10 *cdb; 10962 10963 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10964 10965 *lba = scsi_4btoul(cdb->addr); 10966 *len = scsi_2btoul(cdb->length); 10967 break; 10968 } 10969 case VERIFY_12: { 10970 struct scsi_verify_12 *cdb; 10971 10972 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10973 10974 *lba = scsi_4btoul(cdb->addr); 10975 *len = scsi_4btoul(cdb->length); 10976 break; 10977 } 10978 case VERIFY_16: { 10979 struct scsi_verify_16 *cdb; 10980 10981 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10982 10983 *lba = scsi_8btou64(cdb->addr); 10984 *len = scsi_4btoul(cdb->length); 10985 break; 10986 } 10987 case UNMAP: { 10988 *lba = 0; 10989 *len = UINT64_MAX; 10990 break; 10991 } 10992 default: 10993 return (1); 10994 break; /* NOTREACHED */ 10995 } 10996 10997 return (0); 10998} 10999 11000static ctl_action 11001ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2) 11002{ 11003 uint64_t endlba1, endlba2; 11004 11005 endlba1 = lba1 + len1 - 1; 11006 endlba2 = lba2 + len2 - 1; 11007 11008 if ((endlba1 < lba2) 11009 || (endlba2 < lba1)) 11010 return (CTL_ACTION_PASS); 11011 else 11012 return (CTL_ACTION_BLOCK); 11013} 11014 11015static int 11016ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 11017{ 11018 struct ctl_ptr_len_flags *ptrlen; 11019 struct scsi_unmap_desc *buf, *end, *range; 11020 uint64_t lba; 11021 uint32_t len; 11022 11023 /* If not UNMAP -- go other way. */ 11024 if (io->io_hdr.io_type != CTL_IO_SCSI || 11025 io->scsiio.cdb[0] != UNMAP) 11026 return (CTL_ACTION_ERROR); 11027 11028 /* If UNMAP without data -- block and wait for data. */ 11029 ptrlen = (struct ctl_ptr_len_flags *) 11030 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 11031 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 11032 ptrlen->ptr == NULL) 11033 return (CTL_ACTION_BLOCK); 11034 11035 /* UNMAP with data -- check for collision. */ 11036 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 11037 end = buf + ptrlen->len / sizeof(*buf); 11038 for (range = buf; range < end; range++) { 11039 lba = scsi_8btou64(range->lba); 11040 len = scsi_4btoul(range->length); 11041 if ((lba < lba2 + len2) && (lba + len > lba2)) 11042 return (CTL_ACTION_BLOCK); 11043 } 11044 return (CTL_ACTION_PASS); 11045} 11046 11047static ctl_action 11048ctl_extent_check(union ctl_io *io1, union ctl_io *io2) 11049{ 11050 uint64_t lba1, lba2; 11051 uint64_t len1, len2; 11052 int retval; 11053 11054 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 11055 return (CTL_ACTION_ERROR); 11056 11057 retval = ctl_extent_check_unmap(io2, lba1, len1); 11058 if (retval != CTL_ACTION_ERROR) 11059 return (retval); 11060 11061 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 11062 return (CTL_ACTION_ERROR); 11063 11064 return (ctl_extent_check_lba(lba1, len1, lba2, len2)); 11065} 11066 11067static ctl_action 11068ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 11069 union ctl_io *ooa_io) 11070{ 11071 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 11072 ctl_serialize_action *serialize_row; 11073 11074 /* 11075 * The initiator attempted multiple untagged commands at the same 11076 * time. Can't do that. 11077 */ 11078 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11079 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11080 && ((pending_io->io_hdr.nexus.targ_port == 11081 ooa_io->io_hdr.nexus.targ_port) 11082 && (pending_io->io_hdr.nexus.initid.id == 11083 ooa_io->io_hdr.nexus.initid.id)) 11084 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 11085 return (CTL_ACTION_OVERLAP); 11086 11087 /* 11088 * The initiator attempted to send multiple tagged commands with 11089 * the same ID. (It's fine if different initiators have the same 11090 * tag ID.) 11091 * 11092 * Even if all of those conditions are true, we don't kill the I/O 11093 * if the command ahead of us has been aborted. We won't end up 11094 * sending it to the FETD, and it's perfectly legal to resend a 11095 * command with the same tag number as long as the previous 11096 * instance of this tag number has been aborted somehow. 11097 */ 11098 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11099 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11100 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 11101 && ((pending_io->io_hdr.nexus.targ_port == 11102 ooa_io->io_hdr.nexus.targ_port) 11103 && (pending_io->io_hdr.nexus.initid.id == 11104 ooa_io->io_hdr.nexus.initid.id)) 11105 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 11106 return (CTL_ACTION_OVERLAP_TAG); 11107 11108 /* 11109 * If we get a head of queue tag, SAM-3 says that we should 11110 * immediately execute it. 11111 * 11112 * What happens if this command would normally block for some other 11113 * reason? e.g. a request sense with a head of queue tag 11114 * immediately after a write. Normally that would block, but this 11115 * will result in its getting executed immediately... 11116 * 11117 * We currently return "pass" instead of "skip", so we'll end up 11118 * going through the rest of the queue to check for overlapped tags. 11119 * 11120 * XXX KDM check for other types of blockage first?? 11121 */ 11122 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11123 return (CTL_ACTION_PASS); 11124 11125 /* 11126 * Ordered tags have to block until all items ahead of them 11127 * have completed. If we get called with an ordered tag, we always 11128 * block, if something else is ahead of us in the queue. 11129 */ 11130 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 11131 return (CTL_ACTION_BLOCK); 11132 11133 /* 11134 * Simple tags get blocked until all head of queue and ordered tags 11135 * ahead of them have completed. I'm lumping untagged commands in 11136 * with simple tags here. XXX KDM is that the right thing to do? 11137 */ 11138 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11139 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 11140 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11141 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 11142 return (CTL_ACTION_BLOCK); 11143 11144 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 11145 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 11146 11147 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 11148 11149 switch (serialize_row[pending_entry->seridx]) { 11150 case CTL_SER_BLOCK: 11151 return (CTL_ACTION_BLOCK); 11152 case CTL_SER_EXTENT: 11153 return (ctl_extent_check(pending_io, ooa_io)); 11154 case CTL_SER_EXTENTOPT: 11155 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 11156 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 11157 return (ctl_extent_check(pending_io, ooa_io)); 11158 /* FALLTHROUGH */ 11159 case CTL_SER_PASS: 11160 return (CTL_ACTION_PASS); 11161 case CTL_SER_BLOCKOPT: 11162 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 11163 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 11164 return (CTL_ACTION_BLOCK); 11165 return (CTL_ACTION_PASS); 11166 case CTL_SER_SKIP: 11167 return (CTL_ACTION_SKIP); 11168 default: 11169 panic("invalid serialization value %d", 11170 serialize_row[pending_entry->seridx]); 11171 } 11172 11173 return (CTL_ACTION_ERROR); 11174} 11175 11176/* 11177 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 11178 * Assumptions: 11179 * - pending_io is generally either incoming, or on the blocked queue 11180 * - starting I/O is the I/O we want to start the check with. 11181 */ 11182static ctl_action 11183ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 11184 union ctl_io *starting_io) 11185{ 11186 union ctl_io *ooa_io; 11187 ctl_action action; 11188 11189 mtx_assert(&lun->lun_lock, MA_OWNED); 11190 11191 /* 11192 * Run back along the OOA queue, starting with the current 11193 * blocked I/O and going through every I/O before it on the 11194 * queue. If starting_io is NULL, we'll just end up returning 11195 * CTL_ACTION_PASS. 11196 */ 11197 for (ooa_io = starting_io; ooa_io != NULL; 11198 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 11199 ooa_links)){ 11200 11201 /* 11202 * This routine just checks to see whether 11203 * cur_blocked is blocked by ooa_io, which is ahead 11204 * of it in the queue. It doesn't queue/dequeue 11205 * cur_blocked. 11206 */ 11207 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 11208 switch (action) { 11209 case CTL_ACTION_BLOCK: 11210 case CTL_ACTION_OVERLAP: 11211 case CTL_ACTION_OVERLAP_TAG: 11212 case CTL_ACTION_SKIP: 11213 case CTL_ACTION_ERROR: 11214 return (action); 11215 break; /* NOTREACHED */ 11216 case CTL_ACTION_PASS: 11217 break; 11218 default: 11219 panic("invalid action %d", action); 11220 break; /* NOTREACHED */ 11221 } 11222 } 11223 11224 return (CTL_ACTION_PASS); 11225} 11226 11227/* 11228 * Assumptions: 11229 * - An I/O has just completed, and has been removed from the per-LUN OOA 11230 * queue, so some items on the blocked queue may now be unblocked. 11231 */ 11232static int 11233ctl_check_blocked(struct ctl_lun *lun) 11234{ 11235 union ctl_io *cur_blocked, *next_blocked; 11236 11237 mtx_assert(&lun->lun_lock, MA_OWNED); 11238 11239 /* 11240 * Run forward from the head of the blocked queue, checking each 11241 * entry against the I/Os prior to it on the OOA queue to see if 11242 * there is still any blockage. 11243 * 11244 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 11245 * with our removing a variable on it while it is traversing the 11246 * list. 11247 */ 11248 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 11249 cur_blocked != NULL; cur_blocked = next_blocked) { 11250 union ctl_io *prev_ooa; 11251 ctl_action action; 11252 11253 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 11254 blocked_links); 11255 11256 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11257 ctl_ooaq, ooa_links); 11258 11259 /* 11260 * If cur_blocked happens to be the first item in the OOA 11261 * queue now, prev_ooa will be NULL, and the action 11262 * returned will just be CTL_ACTION_PASS. 11263 */ 11264 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11265 11266 switch (action) { 11267 case CTL_ACTION_BLOCK: 11268 /* Nothing to do here, still blocked */ 11269 break; 11270 case CTL_ACTION_OVERLAP: 11271 case CTL_ACTION_OVERLAP_TAG: 11272 /* 11273 * This shouldn't happen! In theory we've already 11274 * checked this command for overlap... 11275 */ 11276 break; 11277 case CTL_ACTION_PASS: 11278 case CTL_ACTION_SKIP: { 11279 struct ctl_softc *softc; 11280 const struct ctl_cmd_entry *entry; 11281 uint32_t initidx; 11282 int isc_retval; 11283 11284 /* 11285 * The skip case shouldn't happen, this transaction 11286 * should have never made it onto the blocked queue. 11287 */ 11288 /* 11289 * This I/O is no longer blocked, we can remove it 11290 * from the blocked queue. Since this is a TAILQ 11291 * (doubly linked list), we can do O(1) removals 11292 * from any place on the list. 11293 */ 11294 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11295 blocked_links); 11296 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11297 11298 if (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC){ 11299 /* 11300 * Need to send IO back to original side to 11301 * run 11302 */ 11303 union ctl_ha_msg msg_info; 11304 11305 msg_info.hdr.original_sc = 11306 cur_blocked->io_hdr.original_sc; 11307 msg_info.hdr.serializing_sc = cur_blocked; 11308 msg_info.hdr.msg_type = CTL_MSG_R2R; 11309 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11310 &msg_info, sizeof(msg_info), 0)) > 11311 CTL_HA_STATUS_SUCCESS) { 11312 printf("CTL:Check Blocked error from " 11313 "ctl_ha_msg_send %d\n", 11314 isc_retval); 11315 } 11316 break; 11317 } 11318 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 11319 softc = control_softc; 11320 11321 initidx = ctl_get_initindex(&cur_blocked->io_hdr.nexus); 11322 11323 /* 11324 * Check this I/O for LUN state changes that may 11325 * have happened while this command was blocked. 11326 * The LUN state may have been changed by a command 11327 * ahead of us in the queue, so we need to re-check 11328 * for any states that can be caused by SCSI 11329 * commands. 11330 */ 11331 if (ctl_scsiio_lun_check(softc, lun, entry, 11332 &cur_blocked->scsiio) == 0) { 11333 cur_blocked->io_hdr.flags |= 11334 CTL_FLAG_IS_WAS_ON_RTR; 11335 ctl_enqueue_rtr(cur_blocked); 11336 } else 11337 ctl_done(cur_blocked); 11338 break; 11339 } 11340 default: 11341 /* 11342 * This probably shouldn't happen -- we shouldn't 11343 * get CTL_ACTION_ERROR, or anything else. 11344 */ 11345 break; 11346 } 11347 } 11348 11349 return (CTL_RETVAL_COMPLETE); 11350} 11351 11352/* 11353 * This routine (with one exception) checks LUN flags that can be set by 11354 * commands ahead of us in the OOA queue. These flags have to be checked 11355 * when a command initially comes in, and when we pull a command off the 11356 * blocked queue and are preparing to execute it. The reason we have to 11357 * check these flags for commands on the blocked queue is that the LUN 11358 * state may have been changed by a command ahead of us while we're on the 11359 * blocked queue. 11360 * 11361 * Ordering is somewhat important with these checks, so please pay 11362 * careful attention to the placement of any new checks. 11363 */ 11364static int 11365ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 11366 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11367{ 11368 int retval; 11369 uint32_t residx; 11370 11371 retval = 0; 11372 11373 mtx_assert(&lun->lun_lock, MA_OWNED); 11374 11375 /* 11376 * If this shelf is a secondary shelf controller, we have to reject 11377 * any media access commands. 11378 */ 11379 if ((ctl_softc->flags & CTL_FLAG_ACTIVE_SHELF) == 0 && 11380 (entry->flags & CTL_CMD_FLAG_OK_ON_SECONDARY) == 0) { 11381 ctl_set_lun_standby(ctsio); 11382 retval = 1; 11383 goto bailout; 11384 } 11385 11386 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11387 if (lun->flags & CTL_LUN_READONLY) { 11388 ctl_set_sense(ctsio, /*current_error*/ 1, 11389 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11390 /*asc*/ 0x27, /*ascq*/ 0x01, SSD_ELEM_NONE); 11391 retval = 1; 11392 goto bailout; 11393 } 11394 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT] 11395 .eca_and_aen & SCP_SWP) != 0) { 11396 ctl_set_sense(ctsio, /*current_error*/ 1, 11397 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11398 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11399 retval = 1; 11400 goto bailout; 11401 } 11402 } 11403 11404 /* 11405 * Check for a reservation conflict. If this command isn't allowed 11406 * even on reserved LUNs, and if this initiator isn't the one who 11407 * reserved us, reject the command with a reservation conflict. 11408 */ 11409 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 11410 if ((lun->flags & CTL_LUN_RESERVED) 11411 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11412 if (lun->res_idx != residx) { 11413 ctl_set_reservation_conflict(ctsio); 11414 retval = 1; 11415 goto bailout; 11416 } 11417 } 11418 11419 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0 || 11420 (entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV)) { 11421 /* No reservation or command is allowed. */; 11422 } else if ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_WRESV) && 11423 (lun->res_type == SPR_TYPE_WR_EX || 11424 lun->res_type == SPR_TYPE_WR_EX_RO || 11425 lun->res_type == SPR_TYPE_WR_EX_AR)) { 11426 /* The command is allowed for Write Exclusive resv. */; 11427 } else { 11428 /* 11429 * if we aren't registered or it's a res holder type 11430 * reservation and this isn't the res holder then set a 11431 * conflict. 11432 */ 11433 if (lun->pr_keys[residx] == 0 11434 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 11435 ctl_set_reservation_conflict(ctsio); 11436 retval = 1; 11437 goto bailout; 11438 } 11439 11440 } 11441 11442 if ((lun->flags & CTL_LUN_OFFLINE) 11443 && ((entry->flags & CTL_CMD_FLAG_OK_ON_OFFLINE) == 0)) { 11444 ctl_set_lun_not_ready(ctsio); 11445 retval = 1; 11446 goto bailout; 11447 } 11448 11449 /* 11450 * If the LUN is stopped, see if this particular command is allowed 11451 * for a stopped lun. Otherwise, reject it with 0x04,0x02. 11452 */ 11453 if ((lun->flags & CTL_LUN_STOPPED) 11454 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 11455 /* "Logical unit not ready, initializing cmd. required" */ 11456 ctl_set_lun_stopped(ctsio); 11457 retval = 1; 11458 goto bailout; 11459 } 11460 11461 if ((lun->flags & CTL_LUN_INOPERABLE) 11462 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 11463 /* "Medium format corrupted" */ 11464 ctl_set_medium_format_corrupted(ctsio); 11465 retval = 1; 11466 goto bailout; 11467 } 11468 11469bailout: 11470 return (retval); 11471 11472} 11473 11474static void 11475ctl_failover_io(union ctl_io *io, int have_lock) 11476{ 11477 ctl_set_busy(&io->scsiio); 11478 ctl_done(io); 11479} 11480 11481static void 11482ctl_failover(void) 11483{ 11484 struct ctl_lun *lun; 11485 struct ctl_softc *ctl_softc; 11486 union ctl_io *next_io, *pending_io; 11487 union ctl_io *io; 11488 int lun_idx; 11489 int i; 11490 11491 ctl_softc = control_softc; 11492 11493 mtx_lock(&ctl_softc->ctl_lock); 11494 /* 11495 * Remove any cmds from the other SC from the rtr queue. These 11496 * will obviously only be for LUNs for which we're the primary. 11497 * We can't send status or get/send data for these commands. 11498 * Since they haven't been executed yet, we can just remove them. 11499 * We'll either abort them or delete them below, depending on 11500 * which HA mode we're in. 11501 */ 11502#ifdef notyet 11503 mtx_lock(&ctl_softc->queue_lock); 11504 for (io = (union ctl_io *)STAILQ_FIRST(&ctl_softc->rtr_queue); 11505 io != NULL; io = next_io) { 11506 next_io = (union ctl_io *)STAILQ_NEXT(&io->io_hdr, links); 11507 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11508 STAILQ_REMOVE(&ctl_softc->rtr_queue, &io->io_hdr, 11509 ctl_io_hdr, links); 11510 } 11511 mtx_unlock(&ctl_softc->queue_lock); 11512#endif 11513 11514 for (lun_idx=0; lun_idx < ctl_softc->num_luns; lun_idx++) { 11515 lun = ctl_softc->ctl_luns[lun_idx]; 11516 if (lun==NULL) 11517 continue; 11518 11519 /* 11520 * Processor LUNs are primary on both sides. 11521 * XXX will this always be true? 11522 */ 11523 if (lun->be_lun->lun_type == T_PROCESSOR) 11524 continue; 11525 11526 if ((lun->flags & CTL_LUN_PRIMARY_SC) 11527 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11528 printf("FAILOVER: primary lun %d\n", lun_idx); 11529 /* 11530 * Remove all commands from the other SC. First from the 11531 * blocked queue then from the ooa queue. Once we have 11532 * removed them. Call ctl_check_blocked to see if there 11533 * is anything that can run. 11534 */ 11535 for (io = (union ctl_io *)TAILQ_FIRST( 11536 &lun->blocked_queue); io != NULL; io = next_io) { 11537 11538 next_io = (union ctl_io *)TAILQ_NEXT( 11539 &io->io_hdr, blocked_links); 11540 11541 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11542 TAILQ_REMOVE(&lun->blocked_queue, 11543 &io->io_hdr,blocked_links); 11544 io->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11545 TAILQ_REMOVE(&lun->ooa_queue, 11546 &io->io_hdr, ooa_links); 11547 11548 ctl_free_io(io); 11549 } 11550 } 11551 11552 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11553 io != NULL; io = next_io) { 11554 11555 next_io = (union ctl_io *)TAILQ_NEXT( 11556 &io->io_hdr, ooa_links); 11557 11558 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11559 11560 TAILQ_REMOVE(&lun->ooa_queue, 11561 &io->io_hdr, 11562 ooa_links); 11563 11564 ctl_free_io(io); 11565 } 11566 } 11567 ctl_check_blocked(lun); 11568 } else if ((lun->flags & CTL_LUN_PRIMARY_SC) 11569 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11570 11571 printf("FAILOVER: primary lun %d\n", lun_idx); 11572 /* 11573 * Abort all commands from the other SC. We can't 11574 * send status back for them now. These should get 11575 * cleaned up when they are completed or come out 11576 * for a datamove operation. 11577 */ 11578 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11579 io != NULL; io = next_io) { 11580 next_io = (union ctl_io *)TAILQ_NEXT( 11581 &io->io_hdr, ooa_links); 11582 11583 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11584 io->io_hdr.flags |= CTL_FLAG_ABORT; 11585 } 11586 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11587 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11588 11589 printf("FAILOVER: secondary lun %d\n", lun_idx); 11590 11591 lun->flags |= CTL_LUN_PRIMARY_SC; 11592 11593 /* 11594 * We send all I/O that was sent to this controller 11595 * and redirected to the other side back with 11596 * busy status, and have the initiator retry it. 11597 * Figuring out how much data has been transferred, 11598 * etc. and picking up where we left off would be 11599 * very tricky. 11600 * 11601 * XXX KDM need to remove I/O from the blocked 11602 * queue as well! 11603 */ 11604 for (pending_io = (union ctl_io *)TAILQ_FIRST( 11605 &lun->ooa_queue); pending_io != NULL; 11606 pending_io = next_io) { 11607 11608 next_io = (union ctl_io *)TAILQ_NEXT( 11609 &pending_io->io_hdr, ooa_links); 11610 11611 pending_io->io_hdr.flags &= 11612 ~CTL_FLAG_SENT_2OTHER_SC; 11613 11614 if (pending_io->io_hdr.flags & 11615 CTL_FLAG_IO_ACTIVE) { 11616 pending_io->io_hdr.flags |= 11617 CTL_FLAG_FAILOVER; 11618 } else { 11619 ctl_set_busy(&pending_io->scsiio); 11620 ctl_done(pending_io); 11621 } 11622 } 11623 11624 /* 11625 * Build Unit Attention 11626 */ 11627 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11628 lun->pending_ua[i] |= 11629 CTL_UA_ASYM_ACC_CHANGE; 11630 } 11631 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11632 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11633 printf("FAILOVER: secondary lun %d\n", lun_idx); 11634 /* 11635 * if the first io on the OOA is not on the RtR queue 11636 * add it. 11637 */ 11638 lun->flags |= CTL_LUN_PRIMARY_SC; 11639 11640 pending_io = (union ctl_io *)TAILQ_FIRST( 11641 &lun->ooa_queue); 11642 if (pending_io==NULL) { 11643 printf("Nothing on OOA queue\n"); 11644 continue; 11645 } 11646 11647 pending_io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11648 if ((pending_io->io_hdr.flags & 11649 CTL_FLAG_IS_WAS_ON_RTR) == 0) { 11650 pending_io->io_hdr.flags |= 11651 CTL_FLAG_IS_WAS_ON_RTR; 11652 ctl_enqueue_rtr(pending_io); 11653 } 11654#if 0 11655 else 11656 { 11657 printf("Tag 0x%04x is running\n", 11658 pending_io->scsiio.tag_num); 11659 } 11660#endif 11661 11662 next_io = (union ctl_io *)TAILQ_NEXT( 11663 &pending_io->io_hdr, ooa_links); 11664 for (pending_io=next_io; pending_io != NULL; 11665 pending_io = next_io) { 11666 pending_io->io_hdr.flags &= 11667 ~CTL_FLAG_SENT_2OTHER_SC; 11668 next_io = (union ctl_io *)TAILQ_NEXT( 11669 &pending_io->io_hdr, ooa_links); 11670 if (pending_io->io_hdr.flags & 11671 CTL_FLAG_IS_WAS_ON_RTR) { 11672#if 0 11673 printf("Tag 0x%04x is running\n", 11674 pending_io->scsiio.tag_num); 11675#endif 11676 continue; 11677 } 11678 11679 switch (ctl_check_ooa(lun, pending_io, 11680 (union ctl_io *)TAILQ_PREV( 11681 &pending_io->io_hdr, ctl_ooaq, 11682 ooa_links))) { 11683 11684 case CTL_ACTION_BLOCK: 11685 TAILQ_INSERT_TAIL(&lun->blocked_queue, 11686 &pending_io->io_hdr, 11687 blocked_links); 11688 pending_io->io_hdr.flags |= 11689 CTL_FLAG_BLOCKED; 11690 break; 11691 case CTL_ACTION_PASS: 11692 case CTL_ACTION_SKIP: 11693 pending_io->io_hdr.flags |= 11694 CTL_FLAG_IS_WAS_ON_RTR; 11695 ctl_enqueue_rtr(pending_io); 11696 break; 11697 case CTL_ACTION_OVERLAP: 11698 ctl_set_overlapped_cmd( 11699 (struct ctl_scsiio *)pending_io); 11700 ctl_done(pending_io); 11701 break; 11702 case CTL_ACTION_OVERLAP_TAG: 11703 ctl_set_overlapped_tag( 11704 (struct ctl_scsiio *)pending_io, 11705 pending_io->scsiio.tag_num & 0xff); 11706 ctl_done(pending_io); 11707 break; 11708 case CTL_ACTION_ERROR: 11709 default: 11710 ctl_set_internal_failure( 11711 (struct ctl_scsiio *)pending_io, 11712 0, // sks_valid 11713 0); //retry count 11714 ctl_done(pending_io); 11715 break; 11716 } 11717 } 11718 11719 /* 11720 * Build Unit Attention 11721 */ 11722 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11723 lun->pending_ua[i] |= 11724 CTL_UA_ASYM_ACC_CHANGE; 11725 } 11726 } else { 11727 panic("Unhandled HA mode failover, LUN flags = %#x, " 11728 "ha_mode = #%x", lun->flags, ctl_softc->ha_mode); 11729 } 11730 } 11731 ctl_pause_rtr = 0; 11732 mtx_unlock(&ctl_softc->ctl_lock); 11733} 11734 11735static int 11736ctl_scsiio_precheck(struct ctl_softc *ctl_softc, struct ctl_scsiio *ctsio) 11737{ 11738 struct ctl_lun *lun; 11739 const struct ctl_cmd_entry *entry; 11740 uint32_t initidx, targ_lun; 11741 int retval; 11742 11743 retval = 0; 11744 11745 lun = NULL; 11746 11747 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11748 if ((targ_lun < CTL_MAX_LUNS) 11749 && (ctl_softc->ctl_luns[targ_lun] != NULL)) { 11750 lun = ctl_softc->ctl_luns[targ_lun]; 11751 /* 11752 * If the LUN is invalid, pretend that it doesn't exist. 11753 * It will go away as soon as all pending I/O has been 11754 * completed. 11755 */ 11756 if (lun->flags & CTL_LUN_DISABLED) { 11757 lun = NULL; 11758 } else { 11759 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11760 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11761 lun->be_lun; 11762 if (lun->be_lun->lun_type == T_PROCESSOR) { 11763 ctsio->io_hdr.flags |= CTL_FLAG_CONTROL_DEV; 11764 } 11765 11766 /* 11767 * Every I/O goes into the OOA queue for a 11768 * particular LUN, and stays there until completion. 11769 */ 11770 mtx_lock(&lun->lun_lock); 11771 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11772 ooa_links); 11773 } 11774 } else { 11775 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11776 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11777 } 11778 11779 /* Get command entry and return error if it is unsuppotyed. */ 11780 entry = ctl_validate_command(ctsio); 11781 if (entry == NULL) { 11782 if (lun) 11783 mtx_unlock(&lun->lun_lock); 11784 return (retval); 11785 } 11786 11787 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11788 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11789 11790 /* 11791 * Check to see whether we can send this command to LUNs that don't 11792 * exist. This should pretty much only be the case for inquiry 11793 * and request sense. Further checks, below, really require having 11794 * a LUN, so we can't really check the command anymore. Just put 11795 * it on the rtr queue. 11796 */ 11797 if (lun == NULL) { 11798 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) { 11799 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11800 ctl_enqueue_rtr((union ctl_io *)ctsio); 11801 return (retval); 11802 } 11803 11804 ctl_set_unsupported_lun(ctsio); 11805 ctl_done((union ctl_io *)ctsio); 11806 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11807 return (retval); 11808 } else { 11809 /* 11810 * Make sure we support this particular command on this LUN. 11811 * e.g., we don't support writes to the control LUN. 11812 */ 11813 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11814 mtx_unlock(&lun->lun_lock); 11815 ctl_set_invalid_opcode(ctsio); 11816 ctl_done((union ctl_io *)ctsio); 11817 return (retval); 11818 } 11819 } 11820 11821 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11822 11823#ifdef CTL_WITH_CA 11824 /* 11825 * If we've got a request sense, it'll clear the contingent 11826 * allegiance condition. Otherwise, if we have a CA condition for 11827 * this initiator, clear it, because it sent down a command other 11828 * than request sense. 11829 */ 11830 if ((ctsio->cdb[0] != REQUEST_SENSE) 11831 && (ctl_is_set(lun->have_ca, initidx))) 11832 ctl_clear_mask(lun->have_ca, initidx); 11833#endif 11834 11835 /* 11836 * If the command has this flag set, it handles its own unit 11837 * attention reporting, we shouldn't do anything. Otherwise we 11838 * check for any pending unit attentions, and send them back to the 11839 * initiator. We only do this when a command initially comes in, 11840 * not when we pull it off the blocked queue. 11841 * 11842 * According to SAM-3, section 5.3.2, the order that things get 11843 * presented back to the host is basically unit attentions caused 11844 * by some sort of reset event, busy status, reservation conflicts 11845 * or task set full, and finally any other status. 11846 * 11847 * One issue here is that some of the unit attentions we report 11848 * don't fall into the "reset" category (e.g. "reported luns data 11849 * has changed"). So reporting it here, before the reservation 11850 * check, may be technically wrong. I guess the only thing to do 11851 * would be to check for and report the reset events here, and then 11852 * check for the other unit attention types after we check for a 11853 * reservation conflict. 11854 * 11855 * XXX KDM need to fix this 11856 */ 11857 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11858 ctl_ua_type ua_type; 11859 11860 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 11861 scsi_sense_data_type sense_format; 11862 11863 if (lun != NULL) 11864 sense_format = (lun->flags & 11865 CTL_LUN_SENSE_DESC) ? SSD_TYPE_DESC : 11866 SSD_TYPE_FIXED; 11867 else 11868 sense_format = SSD_TYPE_FIXED; 11869 11870 ua_type = ctl_build_ua(&lun->pending_ua[initidx], 11871 &ctsio->sense_data, sense_format); 11872 if (ua_type != CTL_UA_NONE) { 11873 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11874 ctsio->io_hdr.status = CTL_SCSI_ERROR | 11875 CTL_AUTOSENSE; 11876 ctsio->sense_len = SSD_FULL_SIZE; 11877 mtx_unlock(&lun->lun_lock); 11878 ctl_done((union ctl_io *)ctsio); 11879 return (retval); 11880 } 11881 } 11882 } 11883 11884 11885 if (ctl_scsiio_lun_check(ctl_softc, lun, entry, ctsio) != 0) { 11886 mtx_unlock(&lun->lun_lock); 11887 ctl_done((union ctl_io *)ctsio); 11888 return (retval); 11889 } 11890 11891 /* 11892 * XXX CHD this is where we want to send IO to other side if 11893 * this LUN is secondary on this SC. We will need to make a copy 11894 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11895 * the copy we send as FROM_OTHER. 11896 * We also need to stuff the address of the original IO so we can 11897 * find it easily. Something similar will need be done on the other 11898 * side so when we are done we can find the copy. 11899 */ 11900 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11901 union ctl_ha_msg msg_info; 11902 int isc_retval; 11903 11904 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11905 11906 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11907 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11908#if 0 11909 printf("1. ctsio %p\n", ctsio); 11910#endif 11911 msg_info.hdr.serializing_sc = NULL; 11912 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11913 msg_info.scsi.tag_num = ctsio->tag_num; 11914 msg_info.scsi.tag_type = ctsio->tag_type; 11915 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11916 11917 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11918 11919 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11920 (void *)&msg_info, sizeof(msg_info), 0)) > 11921 CTL_HA_STATUS_SUCCESS) { 11922 printf("CTL:precheck, ctl_ha_msg_send returned %d\n", 11923 isc_retval); 11924 printf("CTL:opcode is %x\n", ctsio->cdb[0]); 11925 } else { 11926#if 0 11927 printf("CTL:Precheck sent msg, opcode is %x\n",opcode); 11928#endif 11929 } 11930 11931 /* 11932 * XXX KDM this I/O is off the incoming queue, but hasn't 11933 * been inserted on any other queue. We may need to come 11934 * up with a holding queue while we wait for serialization 11935 * so that we have an idea of what we're waiting for from 11936 * the other side. 11937 */ 11938 mtx_unlock(&lun->lun_lock); 11939 return (retval); 11940 } 11941 11942 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11943 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11944 ctl_ooaq, ooa_links))) { 11945 case CTL_ACTION_BLOCK: 11946 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11947 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11948 blocked_links); 11949 mtx_unlock(&lun->lun_lock); 11950 return (retval); 11951 case CTL_ACTION_PASS: 11952 case CTL_ACTION_SKIP: 11953 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11954 mtx_unlock(&lun->lun_lock); 11955 ctl_enqueue_rtr((union ctl_io *)ctsio); 11956 break; 11957 case CTL_ACTION_OVERLAP: 11958 mtx_unlock(&lun->lun_lock); 11959 ctl_set_overlapped_cmd(ctsio); 11960 ctl_done((union ctl_io *)ctsio); 11961 break; 11962 case CTL_ACTION_OVERLAP_TAG: 11963 mtx_unlock(&lun->lun_lock); 11964 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11965 ctl_done((union ctl_io *)ctsio); 11966 break; 11967 case CTL_ACTION_ERROR: 11968 default: 11969 mtx_unlock(&lun->lun_lock); 11970 ctl_set_internal_failure(ctsio, 11971 /*sks_valid*/ 0, 11972 /*retry_count*/ 0); 11973 ctl_done((union ctl_io *)ctsio); 11974 break; 11975 } 11976 return (retval); 11977} 11978 11979const struct ctl_cmd_entry * 11980ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11981{ 11982 const struct ctl_cmd_entry *entry; 11983 int service_action; 11984 11985 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11986 if (sa) 11987 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11988 if (entry->flags & CTL_CMD_FLAG_SA5) { 11989 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11990 entry = &((const struct ctl_cmd_entry *) 11991 entry->execute)[service_action]; 11992 } 11993 return (entry); 11994} 11995 11996const struct ctl_cmd_entry * 11997ctl_validate_command(struct ctl_scsiio *ctsio) 11998{ 11999 const struct ctl_cmd_entry *entry; 12000 int i, sa; 12001 uint8_t diff; 12002 12003 entry = ctl_get_cmd_entry(ctsio, &sa); 12004 if (entry->execute == NULL) { 12005 if (sa) 12006 ctl_set_invalid_field(ctsio, 12007 /*sks_valid*/ 1, 12008 /*command*/ 1, 12009 /*field*/ 1, 12010 /*bit_valid*/ 1, 12011 /*bit*/ 4); 12012 else 12013 ctl_set_invalid_opcode(ctsio); 12014 ctl_done((union ctl_io *)ctsio); 12015 return (NULL); 12016 } 12017 KASSERT(entry->length > 0, 12018 ("Not defined length for command 0x%02x/0x%02x", 12019 ctsio->cdb[0], ctsio->cdb[1])); 12020 for (i = 1; i < entry->length; i++) { 12021 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 12022 if (diff == 0) 12023 continue; 12024 ctl_set_invalid_field(ctsio, 12025 /*sks_valid*/ 1, 12026 /*command*/ 1, 12027 /*field*/ i, 12028 /*bit_valid*/ 1, 12029 /*bit*/ fls(diff) - 1); 12030 ctl_done((union ctl_io *)ctsio); 12031 return (NULL); 12032 } 12033 return (entry); 12034} 12035 12036static int 12037ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 12038{ 12039 12040 switch (lun_type) { 12041 case T_PROCESSOR: 12042 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) && 12043 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 12044 return (0); 12045 break; 12046 case T_DIRECT: 12047 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) && 12048 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 12049 return (0); 12050 break; 12051 default: 12052 return (0); 12053 } 12054 return (1); 12055} 12056 12057static int 12058ctl_scsiio(struct ctl_scsiio *ctsio) 12059{ 12060 int retval; 12061 const struct ctl_cmd_entry *entry; 12062 12063 retval = CTL_RETVAL_COMPLETE; 12064 12065 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 12066 12067 entry = ctl_get_cmd_entry(ctsio, NULL); 12068 12069 /* 12070 * If this I/O has been aborted, just send it straight to 12071 * ctl_done() without executing it. 12072 */ 12073 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 12074 ctl_done((union ctl_io *)ctsio); 12075 goto bailout; 12076 } 12077 12078 /* 12079 * All the checks should have been handled by ctl_scsiio_precheck(). 12080 * We should be clear now to just execute the I/O. 12081 */ 12082 retval = entry->execute(ctsio); 12083 12084bailout: 12085 return (retval); 12086} 12087 12088/* 12089 * Since we only implement one target right now, a bus reset simply resets 12090 * our single target. 12091 */ 12092static int 12093ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io) 12094{ 12095 return(ctl_target_reset(ctl_softc, io, CTL_UA_BUS_RESET)); 12096} 12097 12098static int 12099ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 12100 ctl_ua_type ua_type) 12101{ 12102 struct ctl_lun *lun; 12103 int retval; 12104 12105 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12106 union ctl_ha_msg msg_info; 12107 12108 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 12109 msg_info.hdr.nexus = io->io_hdr.nexus; 12110 if (ua_type==CTL_UA_TARG_RESET) 12111 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 12112 else 12113 msg_info.task.task_action = CTL_TASK_BUS_RESET; 12114 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12115 msg_info.hdr.original_sc = NULL; 12116 msg_info.hdr.serializing_sc = NULL; 12117 if (CTL_HA_STATUS_SUCCESS != ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12118 (void *)&msg_info, sizeof(msg_info), 0)) { 12119 } 12120 } 12121 retval = 0; 12122 12123 mtx_lock(&ctl_softc->ctl_lock); 12124 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) 12125 retval += ctl_lun_reset(lun, io, ua_type); 12126 mtx_unlock(&ctl_softc->ctl_lock); 12127 12128 return (retval); 12129} 12130 12131/* 12132 * The LUN should always be set. The I/O is optional, and is used to 12133 * distinguish between I/Os sent by this initiator, and by other 12134 * initiators. We set unit attention for initiators other than this one. 12135 * SAM-3 is vague on this point. It does say that a unit attention should 12136 * be established for other initiators when a LUN is reset (see section 12137 * 5.7.3), but it doesn't specifically say that the unit attention should 12138 * be established for this particular initiator when a LUN is reset. Here 12139 * is the relevant text, from SAM-3 rev 8: 12140 * 12141 * 5.7.2 When a SCSI initiator port aborts its own tasks 12142 * 12143 * When a SCSI initiator port causes its own task(s) to be aborted, no 12144 * notification that the task(s) have been aborted shall be returned to 12145 * the SCSI initiator port other than the completion response for the 12146 * command or task management function action that caused the task(s) to 12147 * be aborted and notification(s) associated with related effects of the 12148 * action (e.g., a reset unit attention condition). 12149 * 12150 * XXX KDM for now, we're setting unit attention for all initiators. 12151 */ 12152static int 12153ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 12154{ 12155 union ctl_io *xio; 12156#if 0 12157 uint32_t initindex; 12158#endif 12159 int i; 12160 12161 mtx_lock(&lun->lun_lock); 12162 /* 12163 * Run through the OOA queue and abort each I/O. 12164 */ 12165#if 0 12166 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12167#endif 12168 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12169 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12170 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 12171 } 12172 12173 /* 12174 * This version sets unit attention for every 12175 */ 12176#if 0 12177 initindex = ctl_get_initindex(&io->io_hdr.nexus); 12178 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 12179 if (initindex == i) 12180 continue; 12181 lun->pending_ua[i] |= ua_type; 12182 } 12183#endif 12184 12185 /* 12186 * A reset (any kind, really) clears reservations established with 12187 * RESERVE/RELEASE. It does not clear reservations established 12188 * with PERSISTENT RESERVE OUT, but we don't support that at the 12189 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 12190 * reservations made with the RESERVE/RELEASE commands, because 12191 * those commands are obsolete in SPC-3. 12192 */ 12193 lun->flags &= ~CTL_LUN_RESERVED; 12194 12195 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 12196#ifdef CTL_WITH_CA 12197 ctl_clear_mask(lun->have_ca, i); 12198#endif 12199 lun->pending_ua[i] |= ua_type; 12200 } 12201 mtx_unlock(&lun->lun_lock); 12202 12203 return (0); 12204} 12205 12206static void 12207ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 12208 int other_sc) 12209{ 12210 union ctl_io *xio; 12211 12212 mtx_assert(&lun->lun_lock, MA_OWNED); 12213 12214 /* 12215 * Run through the OOA queue and attempt to find the given I/O. 12216 * The target port, initiator ID, tag type and tag number have to 12217 * match the values that we got from the initiator. If we have an 12218 * untagged command to abort, simply abort the first untagged command 12219 * we come to. We only allow one untagged command at a time of course. 12220 */ 12221 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12222 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12223 12224 if ((targ_port == UINT32_MAX || 12225 targ_port == xio->io_hdr.nexus.targ_port) && 12226 (init_id == UINT32_MAX || 12227 init_id == xio->io_hdr.nexus.initid.id)) { 12228 if (targ_port != xio->io_hdr.nexus.targ_port || 12229 init_id != xio->io_hdr.nexus.initid.id) 12230 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 12231 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12232 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12233 union ctl_ha_msg msg_info; 12234 12235 msg_info.hdr.nexus = xio->io_hdr.nexus; 12236 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12237 msg_info.task.tag_num = xio->scsiio.tag_num; 12238 msg_info.task.tag_type = xio->scsiio.tag_type; 12239 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12240 msg_info.hdr.original_sc = NULL; 12241 msg_info.hdr.serializing_sc = NULL; 12242 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12243 (void *)&msg_info, sizeof(msg_info), 0); 12244 } 12245 } 12246 } 12247} 12248 12249static int 12250ctl_abort_task_set(union ctl_io *io) 12251{ 12252 struct ctl_softc *softc = control_softc; 12253 struct ctl_lun *lun; 12254 uint32_t targ_lun; 12255 12256 /* 12257 * Look up the LUN. 12258 */ 12259 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12260 mtx_lock(&softc->ctl_lock); 12261 if ((targ_lun < CTL_MAX_LUNS) && (softc->ctl_luns[targ_lun] != NULL)) 12262 lun = softc->ctl_luns[targ_lun]; 12263 else { 12264 mtx_unlock(&softc->ctl_lock); 12265 return (1); 12266 } 12267 12268 mtx_lock(&lun->lun_lock); 12269 mtx_unlock(&softc->ctl_lock); 12270 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 12271 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12272 io->io_hdr.nexus.initid.id, 12273 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12274 } else { /* CTL_TASK_CLEAR_TASK_SET */ 12275 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 12276 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12277 } 12278 mtx_unlock(&lun->lun_lock); 12279 return (0); 12280} 12281 12282static int 12283ctl_i_t_nexus_reset(union ctl_io *io) 12284{ 12285 struct ctl_softc *softc = control_softc; 12286 struct ctl_lun *lun; 12287 uint32_t initindex, residx; 12288 12289 initindex = ctl_get_initindex(&io->io_hdr.nexus); 12290 residx = ctl_get_resindex(&io->io_hdr.nexus); 12291 mtx_lock(&softc->ctl_lock); 12292 STAILQ_FOREACH(lun, &softc->lun_list, links) { 12293 mtx_lock(&lun->lun_lock); 12294 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12295 io->io_hdr.nexus.initid.id, 12296 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12297#ifdef CTL_WITH_CA 12298 ctl_clear_mask(lun->have_ca, initindex); 12299#endif 12300 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 12301 lun->flags &= ~CTL_LUN_RESERVED; 12302 lun->pending_ua[initindex] |= CTL_UA_I_T_NEXUS_LOSS; 12303 mtx_unlock(&lun->lun_lock); 12304 } 12305 mtx_unlock(&softc->ctl_lock); 12306 return (0); 12307} 12308 12309static int 12310ctl_abort_task(union ctl_io *io) 12311{ 12312 union ctl_io *xio; 12313 struct ctl_lun *lun; 12314 struct ctl_softc *ctl_softc; 12315#if 0 12316 struct sbuf sb; 12317 char printbuf[128]; 12318#endif 12319 int found; 12320 uint32_t targ_lun; 12321 12322 ctl_softc = control_softc; 12323 found = 0; 12324 12325 /* 12326 * Look up the LUN. 12327 */ 12328 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12329 mtx_lock(&ctl_softc->ctl_lock); 12330 if ((targ_lun < CTL_MAX_LUNS) 12331 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12332 lun = ctl_softc->ctl_luns[targ_lun]; 12333 else { 12334 mtx_unlock(&ctl_softc->ctl_lock); 12335 return (1); 12336 } 12337 12338#if 0 12339 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12340 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12341#endif 12342 12343 mtx_lock(&lun->lun_lock); 12344 mtx_unlock(&ctl_softc->ctl_lock); 12345 /* 12346 * Run through the OOA queue and attempt to find the given I/O. 12347 * The target port, initiator ID, tag type and tag number have to 12348 * match the values that we got from the initiator. If we have an 12349 * untagged command to abort, simply abort the first untagged command 12350 * we come to. We only allow one untagged command at a time of course. 12351 */ 12352#if 0 12353 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12354#endif 12355 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12356 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12357#if 0 12358 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12359 12360 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12361 lun->lun, xio->scsiio.tag_num, 12362 xio->scsiio.tag_type, 12363 (xio->io_hdr.blocked_links.tqe_prev 12364 == NULL) ? "" : " BLOCKED", 12365 (xio->io_hdr.flags & 12366 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12367 (xio->io_hdr.flags & 12368 CTL_FLAG_ABORT) ? " ABORT" : "", 12369 (xio->io_hdr.flags & 12370 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12371 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12372 sbuf_finish(&sb); 12373 printf("%s\n", sbuf_data(&sb)); 12374#endif 12375 12376 if ((xio->io_hdr.nexus.targ_port == io->io_hdr.nexus.targ_port) 12377 && (xio->io_hdr.nexus.initid.id == 12378 io->io_hdr.nexus.initid.id)) { 12379 /* 12380 * If the abort says that the task is untagged, the 12381 * task in the queue must be untagged. Otherwise, 12382 * we just check to see whether the tag numbers 12383 * match. This is because the QLogic firmware 12384 * doesn't pass back the tag type in an abort 12385 * request. 12386 */ 12387#if 0 12388 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12389 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12390 || (xio->scsiio.tag_num == io->taskio.tag_num)) { 12391#endif 12392 /* 12393 * XXX KDM we've got problems with FC, because it 12394 * doesn't send down a tag type with aborts. So we 12395 * can only really go by the tag number... 12396 * This may cause problems with parallel SCSI. 12397 * Need to figure that out!! 12398 */ 12399 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12400 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12401 found = 1; 12402 if ((io->io_hdr.flags & 12403 CTL_FLAG_FROM_OTHER_SC) == 0 && 12404 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12405 union ctl_ha_msg msg_info; 12406 12407 io->io_hdr.flags |= 12408 CTL_FLAG_SENT_2OTHER_SC; 12409 msg_info.hdr.nexus = io->io_hdr.nexus; 12410 msg_info.task.task_action = 12411 CTL_TASK_ABORT_TASK; 12412 msg_info.task.tag_num = 12413 io->taskio.tag_num; 12414 msg_info.task.tag_type = 12415 io->taskio.tag_type; 12416 msg_info.hdr.msg_type = 12417 CTL_MSG_MANAGE_TASKS; 12418 msg_info.hdr.original_sc = NULL; 12419 msg_info.hdr.serializing_sc = NULL; 12420#if 0 12421 printf("Sent Abort to other side\n"); 12422#endif 12423 if (CTL_HA_STATUS_SUCCESS != 12424 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12425 (void *)&msg_info, 12426 sizeof(msg_info), 0)) { 12427 } 12428 } 12429#if 0 12430 printf("ctl_abort_task: found I/O to abort\n"); 12431#endif 12432 break; 12433 } 12434 } 12435 } 12436 mtx_unlock(&lun->lun_lock); 12437 12438 if (found == 0) { 12439 /* 12440 * This isn't really an error. It's entirely possible for 12441 * the abort and command completion to cross on the wire. 12442 * This is more of an informative/diagnostic error. 12443 */ 12444#if 0 12445 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12446 "%d:%d:%d:%d tag %d type %d\n", 12447 io->io_hdr.nexus.initid.id, 12448 io->io_hdr.nexus.targ_port, 12449 io->io_hdr.nexus.targ_target.id, 12450 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12451 io->taskio.tag_type); 12452#endif 12453 } 12454 return (0); 12455} 12456 12457static void 12458ctl_run_task(union ctl_io *io) 12459{ 12460 struct ctl_softc *ctl_softc = control_softc; 12461 int retval = 1; 12462 const char *task_desc; 12463 12464 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12465 12466 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12467 ("ctl_run_task: Unextected io_type %d\n", 12468 io->io_hdr.io_type)); 12469 12470 task_desc = ctl_scsi_task_string(&io->taskio); 12471 if (task_desc != NULL) { 12472#ifdef NEEDTOPORT 12473 csevent_log(CSC_CTL | CSC_SHELF_SW | 12474 CTL_TASK_REPORT, 12475 csevent_LogType_Trace, 12476 csevent_Severity_Information, 12477 csevent_AlertLevel_Green, 12478 csevent_FRU_Firmware, 12479 csevent_FRU_Unknown, 12480 "CTL: received task: %s",task_desc); 12481#endif 12482 } else { 12483#ifdef NEEDTOPORT 12484 csevent_log(CSC_CTL | CSC_SHELF_SW | 12485 CTL_TASK_REPORT, 12486 csevent_LogType_Trace, 12487 csevent_Severity_Information, 12488 csevent_AlertLevel_Green, 12489 csevent_FRU_Firmware, 12490 csevent_FRU_Unknown, 12491 "CTL: received unknown task " 12492 "type: %d (%#x)", 12493 io->taskio.task_action, 12494 io->taskio.task_action); 12495#endif 12496 } 12497 switch (io->taskio.task_action) { 12498 case CTL_TASK_ABORT_TASK: 12499 retval = ctl_abort_task(io); 12500 break; 12501 case CTL_TASK_ABORT_TASK_SET: 12502 case CTL_TASK_CLEAR_TASK_SET: 12503 retval = ctl_abort_task_set(io); 12504 break; 12505 case CTL_TASK_CLEAR_ACA: 12506 break; 12507 case CTL_TASK_I_T_NEXUS_RESET: 12508 retval = ctl_i_t_nexus_reset(io); 12509 break; 12510 case CTL_TASK_LUN_RESET: { 12511 struct ctl_lun *lun; 12512 uint32_t targ_lun; 12513 12514 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12515 mtx_lock(&ctl_softc->ctl_lock); 12516 if ((targ_lun < CTL_MAX_LUNS) 12517 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12518 lun = ctl_softc->ctl_luns[targ_lun]; 12519 else { 12520 mtx_unlock(&ctl_softc->ctl_lock); 12521 retval = 1; 12522 break; 12523 } 12524 12525 if (!(io->io_hdr.flags & 12526 CTL_FLAG_FROM_OTHER_SC)) { 12527 union ctl_ha_msg msg_info; 12528 12529 io->io_hdr.flags |= 12530 CTL_FLAG_SENT_2OTHER_SC; 12531 msg_info.hdr.msg_type = 12532 CTL_MSG_MANAGE_TASKS; 12533 msg_info.hdr.nexus = io->io_hdr.nexus; 12534 msg_info.task.task_action = 12535 CTL_TASK_LUN_RESET; 12536 msg_info.hdr.original_sc = NULL; 12537 msg_info.hdr.serializing_sc = NULL; 12538 if (CTL_HA_STATUS_SUCCESS != 12539 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12540 (void *)&msg_info, 12541 sizeof(msg_info), 0)) { 12542 } 12543 } 12544 12545 retval = ctl_lun_reset(lun, io, 12546 CTL_UA_LUN_RESET); 12547 mtx_unlock(&ctl_softc->ctl_lock); 12548 break; 12549 } 12550 case CTL_TASK_TARGET_RESET: 12551 retval = ctl_target_reset(ctl_softc, io, CTL_UA_TARG_RESET); 12552 break; 12553 case CTL_TASK_BUS_RESET: 12554 retval = ctl_bus_reset(ctl_softc, io); 12555 break; 12556 case CTL_TASK_PORT_LOGIN: 12557 break; 12558 case CTL_TASK_PORT_LOGOUT: 12559 break; 12560 default: 12561 printf("ctl_run_task: got unknown task management event %d\n", 12562 io->taskio.task_action); 12563 break; 12564 } 12565 if (retval == 0) 12566 io->io_hdr.status = CTL_SUCCESS; 12567 else 12568 io->io_hdr.status = CTL_ERROR; 12569 ctl_done(io); 12570} 12571 12572/* 12573 * For HA operation. Handle commands that come in from the other 12574 * controller. 12575 */ 12576static void 12577ctl_handle_isc(union ctl_io *io) 12578{ 12579 int free_io; 12580 struct ctl_lun *lun; 12581 struct ctl_softc *ctl_softc; 12582 uint32_t targ_lun; 12583 12584 ctl_softc = control_softc; 12585 12586 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12587 lun = ctl_softc->ctl_luns[targ_lun]; 12588 12589 switch (io->io_hdr.msg_type) { 12590 case CTL_MSG_SERIALIZE: 12591 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12592 break; 12593 case CTL_MSG_R2R: { 12594 const struct ctl_cmd_entry *entry; 12595 12596 /* 12597 * This is only used in SER_ONLY mode. 12598 */ 12599 free_io = 0; 12600 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12601 mtx_lock(&lun->lun_lock); 12602 if (ctl_scsiio_lun_check(ctl_softc, lun, 12603 entry, (struct ctl_scsiio *)io) != 0) { 12604 mtx_unlock(&lun->lun_lock); 12605 ctl_done(io); 12606 break; 12607 } 12608 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12609 mtx_unlock(&lun->lun_lock); 12610 ctl_enqueue_rtr(io); 12611 break; 12612 } 12613 case CTL_MSG_FINISH_IO: 12614 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 12615 free_io = 0; 12616 ctl_done(io); 12617 } else { 12618 free_io = 1; 12619 mtx_lock(&lun->lun_lock); 12620 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12621 ooa_links); 12622 ctl_check_blocked(lun); 12623 mtx_unlock(&lun->lun_lock); 12624 } 12625 break; 12626 case CTL_MSG_PERS_ACTION: 12627 ctl_hndl_per_res_out_on_other_sc( 12628 (union ctl_ha_msg *)&io->presio.pr_msg); 12629 free_io = 1; 12630 break; 12631 case CTL_MSG_BAD_JUJU: 12632 free_io = 0; 12633 ctl_done(io); 12634 break; 12635 case CTL_MSG_DATAMOVE: 12636 /* Only used in XFER mode */ 12637 free_io = 0; 12638 ctl_datamove_remote(io); 12639 break; 12640 case CTL_MSG_DATAMOVE_DONE: 12641 /* Only used in XFER mode */ 12642 free_io = 0; 12643 io->scsiio.be_move_done(io); 12644 break; 12645 default: 12646 free_io = 1; 12647 printf("%s: Invalid message type %d\n", 12648 __func__, io->io_hdr.msg_type); 12649 break; 12650 } 12651 if (free_io) 12652 ctl_free_io(io); 12653 12654} 12655 12656 12657/* 12658 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12659 * there is no match. 12660 */ 12661static ctl_lun_error_pattern 12662ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12663{ 12664 const struct ctl_cmd_entry *entry; 12665 ctl_lun_error_pattern filtered_pattern, pattern; 12666 12667 pattern = desc->error_pattern; 12668 12669 /* 12670 * XXX KDM we need more data passed into this function to match a 12671 * custom pattern, and we actually need to implement custom pattern 12672 * matching. 12673 */ 12674 if (pattern & CTL_LUN_PAT_CMD) 12675 return (CTL_LUN_PAT_CMD); 12676 12677 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12678 return (CTL_LUN_PAT_ANY); 12679 12680 entry = ctl_get_cmd_entry(ctsio, NULL); 12681 12682 filtered_pattern = entry->pattern & pattern; 12683 12684 /* 12685 * If the user requested specific flags in the pattern (e.g. 12686 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12687 * flags. 12688 * 12689 * If the user did not specify any flags, it doesn't matter whether 12690 * or not the command supports the flags. 12691 */ 12692 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12693 (pattern & ~CTL_LUN_PAT_MASK)) 12694 return (CTL_LUN_PAT_NONE); 12695 12696 /* 12697 * If the user asked for a range check, see if the requested LBA 12698 * range overlaps with this command's LBA range. 12699 */ 12700 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12701 uint64_t lba1; 12702 uint64_t len1; 12703 ctl_action action; 12704 int retval; 12705 12706 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12707 if (retval != 0) 12708 return (CTL_LUN_PAT_NONE); 12709 12710 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12711 desc->lba_range.len); 12712 /* 12713 * A "pass" means that the LBA ranges don't overlap, so 12714 * this doesn't match the user's range criteria. 12715 */ 12716 if (action == CTL_ACTION_PASS) 12717 return (CTL_LUN_PAT_NONE); 12718 } 12719 12720 return (filtered_pattern); 12721} 12722 12723static void 12724ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12725{ 12726 struct ctl_error_desc *desc, *desc2; 12727 12728 mtx_assert(&lun->lun_lock, MA_OWNED); 12729 12730 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12731 ctl_lun_error_pattern pattern; 12732 /* 12733 * Check to see whether this particular command matches 12734 * the pattern in the descriptor. 12735 */ 12736 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12737 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12738 continue; 12739 12740 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12741 case CTL_LUN_INJ_ABORTED: 12742 ctl_set_aborted(&io->scsiio); 12743 break; 12744 case CTL_LUN_INJ_MEDIUM_ERR: 12745 ctl_set_medium_error(&io->scsiio); 12746 break; 12747 case CTL_LUN_INJ_UA: 12748 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12749 * OCCURRED */ 12750 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12751 break; 12752 case CTL_LUN_INJ_CUSTOM: 12753 /* 12754 * We're assuming the user knows what he is doing. 12755 * Just copy the sense information without doing 12756 * checks. 12757 */ 12758 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12759 ctl_min(sizeof(desc->custom_sense), 12760 sizeof(io->scsiio.sense_data))); 12761 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12762 io->scsiio.sense_len = SSD_FULL_SIZE; 12763 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12764 break; 12765 case CTL_LUN_INJ_NONE: 12766 default: 12767 /* 12768 * If this is an error injection type we don't know 12769 * about, clear the continuous flag (if it is set) 12770 * so it will get deleted below. 12771 */ 12772 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12773 break; 12774 } 12775 /* 12776 * By default, each error injection action is a one-shot 12777 */ 12778 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12779 continue; 12780 12781 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12782 12783 free(desc, M_CTL); 12784 } 12785} 12786 12787#ifdef CTL_IO_DELAY 12788static void 12789ctl_datamove_timer_wakeup(void *arg) 12790{ 12791 union ctl_io *io; 12792 12793 io = (union ctl_io *)arg; 12794 12795 ctl_datamove(io); 12796} 12797#endif /* CTL_IO_DELAY */ 12798 12799void 12800ctl_datamove(union ctl_io *io) 12801{ 12802 void (*fe_datamove)(union ctl_io *io); 12803 12804 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12805 12806 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12807 12808#ifdef CTL_TIME_IO 12809 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12810 char str[256]; 12811 char path_str[64]; 12812 struct sbuf sb; 12813 12814 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12815 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12816 12817 sbuf_cat(&sb, path_str); 12818 switch (io->io_hdr.io_type) { 12819 case CTL_IO_SCSI: 12820 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12821 sbuf_printf(&sb, "\n"); 12822 sbuf_cat(&sb, path_str); 12823 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12824 io->scsiio.tag_num, io->scsiio.tag_type); 12825 break; 12826 case CTL_IO_TASK: 12827 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12828 "Tag Type: %d\n", io->taskio.task_action, 12829 io->taskio.tag_num, io->taskio.tag_type); 12830 break; 12831 default: 12832 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12833 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12834 break; 12835 } 12836 sbuf_cat(&sb, path_str); 12837 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12838 (intmax_t)time_uptime - io->io_hdr.start_time); 12839 sbuf_finish(&sb); 12840 printf("%s", sbuf_data(&sb)); 12841 } 12842#endif /* CTL_TIME_IO */ 12843 12844#ifdef CTL_IO_DELAY 12845 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12846 struct ctl_lun *lun; 12847 12848 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12849 12850 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12851 } else { 12852 struct ctl_lun *lun; 12853 12854 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12855 if ((lun != NULL) 12856 && (lun->delay_info.datamove_delay > 0)) { 12857 struct callout *callout; 12858 12859 callout = (struct callout *)&io->io_hdr.timer_bytes; 12860 callout_init(callout, /*mpsafe*/ 1); 12861 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12862 callout_reset(callout, 12863 lun->delay_info.datamove_delay * hz, 12864 ctl_datamove_timer_wakeup, io); 12865 if (lun->delay_info.datamove_type == 12866 CTL_DELAY_TYPE_ONESHOT) 12867 lun->delay_info.datamove_delay = 0; 12868 return; 12869 } 12870 } 12871#endif 12872 12873 /* 12874 * This command has been aborted. Set the port status, so we fail 12875 * the data move. 12876 */ 12877 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12878 printf("ctl_datamove: tag 0x%04x on (%ju:%d:%ju:%d) aborted\n", 12879 io->scsiio.tag_num,(uintmax_t)io->io_hdr.nexus.initid.id, 12880 io->io_hdr.nexus.targ_port, 12881 (uintmax_t)io->io_hdr.nexus.targ_target.id, 12882 io->io_hdr.nexus.targ_lun); 12883 io->io_hdr.port_status = 31337; 12884 /* 12885 * Note that the backend, in this case, will get the 12886 * callback in its context. In other cases it may get 12887 * called in the frontend's interrupt thread context. 12888 */ 12889 io->scsiio.be_move_done(io); 12890 return; 12891 } 12892 12893 /* Don't confuse frontend with zero length data move. */ 12894 if (io->scsiio.kern_data_len == 0) { 12895 io->scsiio.be_move_done(io); 12896 return; 12897 } 12898 12899 /* 12900 * If we're in XFER mode and this I/O is from the other shelf 12901 * controller, we need to send the DMA to the other side to 12902 * actually transfer the data to/from the host. In serialize only 12903 * mode the transfer happens below CTL and ctl_datamove() is only 12904 * called on the machine that originally received the I/O. 12905 */ 12906 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12907 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12908 union ctl_ha_msg msg; 12909 uint32_t sg_entries_sent; 12910 int do_sg_copy; 12911 int i; 12912 12913 memset(&msg, 0, sizeof(msg)); 12914 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12915 msg.hdr.original_sc = io->io_hdr.original_sc; 12916 msg.hdr.serializing_sc = io; 12917 msg.hdr.nexus = io->io_hdr.nexus; 12918 msg.dt.flags = io->io_hdr.flags; 12919 /* 12920 * We convert everything into a S/G list here. We can't 12921 * pass by reference, only by value between controllers. 12922 * So we can't pass a pointer to the S/G list, only as many 12923 * S/G entries as we can fit in here. If it's possible for 12924 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12925 * then we need to break this up into multiple transfers. 12926 */ 12927 if (io->scsiio.kern_sg_entries == 0) { 12928 msg.dt.kern_sg_entries = 1; 12929 /* 12930 * If this is in cached memory, flush the cache 12931 * before we send the DMA request to the other 12932 * controller. We want to do this in either the 12933 * read or the write case. The read case is 12934 * straightforward. In the write case, we want to 12935 * make sure nothing is in the local cache that 12936 * could overwrite the DMAed data. 12937 */ 12938 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12939 /* 12940 * XXX KDM use bus_dmamap_sync() here. 12941 */ 12942 } 12943 12944 /* 12945 * Convert to a physical address if this is a 12946 * virtual address. 12947 */ 12948 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12949 msg.dt.sg_list[0].addr = 12950 io->scsiio.kern_data_ptr; 12951 } else { 12952 /* 12953 * XXX KDM use busdma here! 12954 */ 12955#if 0 12956 msg.dt.sg_list[0].addr = (void *) 12957 vtophys(io->scsiio.kern_data_ptr); 12958#endif 12959 } 12960 12961 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12962 do_sg_copy = 0; 12963 } else { 12964 struct ctl_sg_entry *sgl; 12965 12966 do_sg_copy = 1; 12967 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12968 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 12969 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12970 /* 12971 * XXX KDM use bus_dmamap_sync() here. 12972 */ 12973 } 12974 } 12975 12976 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12977 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12978 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12979 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12980 msg.dt.sg_sequence = 0; 12981 12982 /* 12983 * Loop until we've sent all of the S/G entries. On the 12984 * other end, we'll recompose these S/G entries into one 12985 * contiguous list before passing it to the 12986 */ 12987 for (sg_entries_sent = 0; sg_entries_sent < 12988 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12989 msg.dt.cur_sg_entries = ctl_min((sizeof(msg.dt.sg_list)/ 12990 sizeof(msg.dt.sg_list[0])), 12991 msg.dt.kern_sg_entries - sg_entries_sent); 12992 12993 if (do_sg_copy != 0) { 12994 struct ctl_sg_entry *sgl; 12995 int j; 12996 12997 sgl = (struct ctl_sg_entry *) 12998 io->scsiio.kern_data_ptr; 12999 /* 13000 * If this is in cached memory, flush the cache 13001 * before we send the DMA request to the other 13002 * controller. We want to do this in either 13003 * the * read or the write case. The read 13004 * case is straightforward. In the write 13005 * case, we want to make sure nothing is 13006 * in the local cache that could overwrite 13007 * the DMAed data. 13008 */ 13009 13010 for (i = sg_entries_sent, j = 0; 13011 i < msg.dt.cur_sg_entries; i++, j++) { 13012 if ((io->io_hdr.flags & 13013 CTL_FLAG_NO_DATASYNC) == 0) { 13014 /* 13015 * XXX KDM use bus_dmamap_sync() 13016 */ 13017 } 13018 if ((io->io_hdr.flags & 13019 CTL_FLAG_BUS_ADDR) == 0) { 13020 /* 13021 * XXX KDM use busdma. 13022 */ 13023#if 0 13024 msg.dt.sg_list[j].addr =(void *) 13025 vtophys(sgl[i].addr); 13026#endif 13027 } else { 13028 msg.dt.sg_list[j].addr = 13029 sgl[i].addr; 13030 } 13031 msg.dt.sg_list[j].len = sgl[i].len; 13032 } 13033 } 13034 13035 sg_entries_sent += msg.dt.cur_sg_entries; 13036 if (sg_entries_sent >= msg.dt.kern_sg_entries) 13037 msg.dt.sg_last = 1; 13038 else 13039 msg.dt.sg_last = 0; 13040 13041 /* 13042 * XXX KDM drop and reacquire the lock here? 13043 */ 13044 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13045 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13046 /* 13047 * XXX do something here. 13048 */ 13049 } 13050 13051 msg.dt.sent_sg_entries = sg_entries_sent; 13052 } 13053 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13054 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) 13055 ctl_failover_io(io, /*have_lock*/ 0); 13056 13057 } else { 13058 13059 /* 13060 * Lookup the fe_datamove() function for this particular 13061 * front end. 13062 */ 13063 fe_datamove = 13064 control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13065 13066 fe_datamove(io); 13067 } 13068} 13069 13070static void 13071ctl_send_datamove_done(union ctl_io *io, int have_lock) 13072{ 13073 union ctl_ha_msg msg; 13074 int isc_status; 13075 13076 memset(&msg, 0, sizeof(msg)); 13077 13078 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 13079 msg.hdr.original_sc = io; 13080 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 13081 msg.hdr.nexus = io->io_hdr.nexus; 13082 msg.hdr.status = io->io_hdr.status; 13083 msg.scsi.tag_num = io->scsiio.tag_num; 13084 msg.scsi.tag_type = io->scsiio.tag_type; 13085 msg.scsi.scsi_status = io->scsiio.scsi_status; 13086 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13087 sizeof(io->scsiio.sense_data)); 13088 msg.scsi.sense_len = io->scsiio.sense_len; 13089 msg.scsi.sense_residual = io->scsiio.sense_residual; 13090 msg.scsi.fetd_status = io->io_hdr.port_status; 13091 msg.scsi.residual = io->scsiio.residual; 13092 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13093 13094 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13095 ctl_failover_io(io, /*have_lock*/ have_lock); 13096 return; 13097 } 13098 13099 isc_status = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0); 13100 if (isc_status > CTL_HA_STATUS_SUCCESS) { 13101 /* XXX do something if this fails */ 13102 } 13103 13104} 13105 13106/* 13107 * The DMA to the remote side is done, now we need to tell the other side 13108 * we're done so it can continue with its data movement. 13109 */ 13110static void 13111ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 13112{ 13113 union ctl_io *io; 13114 13115 io = rq->context; 13116 13117 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 13118 printf("%s: ISC DMA write failed with error %d", __func__, 13119 rq->ret); 13120 ctl_set_internal_failure(&io->scsiio, 13121 /*sks_valid*/ 1, 13122 /*retry_count*/ rq->ret); 13123 } 13124 13125 ctl_dt_req_free(rq); 13126 13127 /* 13128 * In this case, we had to malloc the memory locally. Free it. 13129 */ 13130 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 13131 int i; 13132 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13133 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13134 } 13135 /* 13136 * The data is in local and remote memory, so now we need to send 13137 * status (good or back) back to the other side. 13138 */ 13139 ctl_send_datamove_done(io, /*have_lock*/ 0); 13140} 13141 13142/* 13143 * We've moved the data from the host/controller into local memory. Now we 13144 * need to push it over to the remote controller's memory. 13145 */ 13146static int 13147ctl_datamove_remote_dm_write_cb(union ctl_io *io) 13148{ 13149 int retval; 13150 13151 retval = 0; 13152 13153 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 13154 ctl_datamove_remote_write_cb); 13155 13156 return (retval); 13157} 13158 13159static void 13160ctl_datamove_remote_write(union ctl_io *io) 13161{ 13162 int retval; 13163 void (*fe_datamove)(union ctl_io *io); 13164 13165 /* 13166 * - Get the data from the host/HBA into local memory. 13167 * - DMA memory from the local controller to the remote controller. 13168 * - Send status back to the remote controller. 13169 */ 13170 13171 retval = ctl_datamove_remote_sgl_setup(io); 13172 if (retval != 0) 13173 return; 13174 13175 /* Switch the pointer over so the FETD knows what to do */ 13176 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 13177 13178 /* 13179 * Use a custom move done callback, since we need to send completion 13180 * back to the other controller, not to the backend on this side. 13181 */ 13182 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 13183 13184 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13185 13186 fe_datamove(io); 13187 13188 return; 13189 13190} 13191 13192static int 13193ctl_datamove_remote_dm_read_cb(union ctl_io *io) 13194{ 13195#if 0 13196 char str[256]; 13197 char path_str[64]; 13198 struct sbuf sb; 13199#endif 13200 13201 /* 13202 * In this case, we had to malloc the memory locally. Free it. 13203 */ 13204 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 13205 int i; 13206 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13207 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13208 } 13209 13210#if 0 13211 scsi_path_string(io, path_str, sizeof(path_str)); 13212 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13213 sbuf_cat(&sb, path_str); 13214 scsi_command_string(&io->scsiio, NULL, &sb); 13215 sbuf_printf(&sb, "\n"); 13216 sbuf_cat(&sb, path_str); 13217 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13218 io->scsiio.tag_num, io->scsiio.tag_type); 13219 sbuf_cat(&sb, path_str); 13220 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 13221 io->io_hdr.flags, io->io_hdr.status); 13222 sbuf_finish(&sb); 13223 printk("%s", sbuf_data(&sb)); 13224#endif 13225 13226 13227 /* 13228 * The read is done, now we need to send status (good or bad) back 13229 * to the other side. 13230 */ 13231 ctl_send_datamove_done(io, /*have_lock*/ 0); 13232 13233 return (0); 13234} 13235 13236static void 13237ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 13238{ 13239 union ctl_io *io; 13240 void (*fe_datamove)(union ctl_io *io); 13241 13242 io = rq->context; 13243 13244 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 13245 printf("%s: ISC DMA read failed with error %d", __func__, 13246 rq->ret); 13247 ctl_set_internal_failure(&io->scsiio, 13248 /*sks_valid*/ 1, 13249 /*retry_count*/ rq->ret); 13250 } 13251 13252 ctl_dt_req_free(rq); 13253 13254 /* Switch the pointer over so the FETD knows what to do */ 13255 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 13256 13257 /* 13258 * Use a custom move done callback, since we need to send completion 13259 * back to the other controller, not to the backend on this side. 13260 */ 13261 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 13262 13263 /* XXX KDM add checks like the ones in ctl_datamove? */ 13264 13265 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13266 13267 fe_datamove(io); 13268} 13269 13270static int 13271ctl_datamove_remote_sgl_setup(union ctl_io *io) 13272{ 13273 struct ctl_sg_entry *local_sglist, *remote_sglist; 13274 struct ctl_sg_entry *local_dma_sglist, *remote_dma_sglist; 13275 struct ctl_softc *softc; 13276 int retval; 13277 int i; 13278 13279 retval = 0; 13280 softc = control_softc; 13281 13282 local_sglist = io->io_hdr.local_sglist; 13283 local_dma_sglist = io->io_hdr.local_dma_sglist; 13284 remote_sglist = io->io_hdr.remote_sglist; 13285 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13286 13287 if (io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) { 13288 for (i = 0; i < io->scsiio.kern_sg_entries; i++) { 13289 local_sglist[i].len = remote_sglist[i].len; 13290 13291 /* 13292 * XXX Detect the situation where the RS-level I/O 13293 * redirector on the other side has already read the 13294 * data off of the AOR RS on this side, and 13295 * transferred it to remote (mirror) memory on the 13296 * other side. Since we already have the data in 13297 * memory here, we just need to use it. 13298 * 13299 * XXX KDM this can probably be removed once we 13300 * get the cache device code in and take the 13301 * current AOR implementation out. 13302 */ 13303#ifdef NEEDTOPORT 13304 if ((remote_sglist[i].addr >= 13305 (void *)vtophys(softc->mirr->addr)) 13306 && (remote_sglist[i].addr < 13307 ((void *)vtophys(softc->mirr->addr) + 13308 CacheMirrorOffset))) { 13309 local_sglist[i].addr = remote_sglist[i].addr - 13310 CacheMirrorOffset; 13311 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13312 CTL_FLAG_DATA_IN) 13313 io->io_hdr.flags |= CTL_FLAG_REDIR_DONE; 13314 } else { 13315 local_sglist[i].addr = remote_sglist[i].addr + 13316 CacheMirrorOffset; 13317 } 13318#endif 13319#if 0 13320 printf("%s: local %p, remote %p, len %d\n", 13321 __func__, local_sglist[i].addr, 13322 remote_sglist[i].addr, local_sglist[i].len); 13323#endif 13324 } 13325 } else { 13326 uint32_t len_to_go; 13327 13328 /* 13329 * In this case, we don't have automatically allocated 13330 * memory for this I/O on this controller. This typically 13331 * happens with internal CTL I/O -- e.g. inquiry, mode 13332 * sense, etc. Anything coming from RAIDCore will have 13333 * a mirror area available. 13334 */ 13335 len_to_go = io->scsiio.kern_data_len; 13336 13337 /* 13338 * Clear the no datasync flag, we have to use malloced 13339 * buffers. 13340 */ 13341 io->io_hdr.flags &= ~CTL_FLAG_NO_DATASYNC; 13342 13343 /* 13344 * The difficult thing here is that the size of the various 13345 * S/G segments may be different than the size from the 13346 * remote controller. That'll make it harder when DMAing 13347 * the data back to the other side. 13348 */ 13349 for (i = 0; (i < sizeof(io->io_hdr.remote_sglist) / 13350 sizeof(io->io_hdr.remote_sglist[0])) && 13351 (len_to_go > 0); i++) { 13352 local_sglist[i].len = ctl_min(len_to_go, 131072); 13353 CTL_SIZE_8B(local_dma_sglist[i].len, 13354 local_sglist[i].len); 13355 local_sglist[i].addr = 13356 malloc(local_dma_sglist[i].len, M_CTL,M_WAITOK); 13357 13358 local_dma_sglist[i].addr = local_sglist[i].addr; 13359 13360 if (local_sglist[i].addr == NULL) { 13361 int j; 13362 13363 printf("malloc failed for %zd bytes!", 13364 local_dma_sglist[i].len); 13365 for (j = 0; j < i; j++) { 13366 free(local_sglist[j].addr, M_CTL); 13367 } 13368 ctl_set_internal_failure(&io->scsiio, 13369 /*sks_valid*/ 1, 13370 /*retry_count*/ 4857); 13371 retval = 1; 13372 goto bailout_error; 13373 13374 } 13375 /* XXX KDM do we need a sync here? */ 13376 13377 len_to_go -= local_sglist[i].len; 13378 } 13379 /* 13380 * Reset the number of S/G entries accordingly. The 13381 * original number of S/G entries is available in 13382 * rem_sg_entries. 13383 */ 13384 io->scsiio.kern_sg_entries = i; 13385 13386#if 0 13387 printf("%s: kern_sg_entries = %d\n", __func__, 13388 io->scsiio.kern_sg_entries); 13389 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13390 printf("%s: sg[%d] = %p, %d (DMA: %d)\n", __func__, i, 13391 local_sglist[i].addr, local_sglist[i].len, 13392 local_dma_sglist[i].len); 13393#endif 13394 } 13395 13396 13397 return (retval); 13398 13399bailout_error: 13400 13401 ctl_send_datamove_done(io, /*have_lock*/ 0); 13402 13403 return (retval); 13404} 13405 13406static int 13407ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 13408 ctl_ha_dt_cb callback) 13409{ 13410 struct ctl_ha_dt_req *rq; 13411 struct ctl_sg_entry *remote_sglist, *local_sglist; 13412 struct ctl_sg_entry *remote_dma_sglist, *local_dma_sglist; 13413 uint32_t local_used, remote_used, total_used; 13414 int retval; 13415 int i, j; 13416 13417 retval = 0; 13418 13419 rq = ctl_dt_req_alloc(); 13420 13421 /* 13422 * If we failed to allocate the request, and if the DMA didn't fail 13423 * anyway, set busy status. This is just a resource allocation 13424 * failure. 13425 */ 13426 if ((rq == NULL) 13427 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)) 13428 ctl_set_busy(&io->scsiio); 13429 13430 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 13431 13432 if (rq != NULL) 13433 ctl_dt_req_free(rq); 13434 13435 /* 13436 * The data move failed. We need to return status back 13437 * to the other controller. No point in trying to DMA 13438 * data to the remote controller. 13439 */ 13440 13441 ctl_send_datamove_done(io, /*have_lock*/ 0); 13442 13443 retval = 1; 13444 13445 goto bailout; 13446 } 13447 13448 local_sglist = io->io_hdr.local_sglist; 13449 local_dma_sglist = io->io_hdr.local_dma_sglist; 13450 remote_sglist = io->io_hdr.remote_sglist; 13451 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13452 local_used = 0; 13453 remote_used = 0; 13454 total_used = 0; 13455 13456 if (io->io_hdr.flags & CTL_FLAG_REDIR_DONE) { 13457 rq->ret = CTL_HA_STATUS_SUCCESS; 13458 rq->context = io; 13459 callback(rq); 13460 goto bailout; 13461 } 13462 13463 /* 13464 * Pull/push the data over the wire from/to the other controller. 13465 * This takes into account the possibility that the local and 13466 * remote sglists may not be identical in terms of the size of 13467 * the elements and the number of elements. 13468 * 13469 * One fundamental assumption here is that the length allocated for 13470 * both the local and remote sglists is identical. Otherwise, we've 13471 * essentially got a coding error of some sort. 13472 */ 13473 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 13474 int isc_ret; 13475 uint32_t cur_len, dma_length; 13476 uint8_t *tmp_ptr; 13477 13478 rq->id = CTL_HA_DATA_CTL; 13479 rq->command = command; 13480 rq->context = io; 13481 13482 /* 13483 * Both pointers should be aligned. But it is possible 13484 * that the allocation length is not. They should both 13485 * also have enough slack left over at the end, though, 13486 * to round up to the next 8 byte boundary. 13487 */ 13488 cur_len = ctl_min(local_sglist[i].len - local_used, 13489 remote_sglist[j].len - remote_used); 13490 13491 /* 13492 * In this case, we have a size issue and need to decrease 13493 * the size, except in the case where we actually have less 13494 * than 8 bytes left. In that case, we need to increase 13495 * the DMA length to get the last bit. 13496 */ 13497 if ((cur_len & 0x7) != 0) { 13498 if (cur_len > 0x7) { 13499 cur_len = cur_len - (cur_len & 0x7); 13500 dma_length = cur_len; 13501 } else { 13502 CTL_SIZE_8B(dma_length, cur_len); 13503 } 13504 13505 } else 13506 dma_length = cur_len; 13507 13508 /* 13509 * If we had to allocate memory for this I/O, instead of using 13510 * the non-cached mirror memory, we'll need to flush the cache 13511 * before trying to DMA to the other controller. 13512 * 13513 * We could end up doing this multiple times for the same 13514 * segment if we have a larger local segment than remote 13515 * segment. That shouldn't be an issue. 13516 */ 13517 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 13518 /* 13519 * XXX KDM use bus_dmamap_sync() here. 13520 */ 13521 } 13522 13523 rq->size = dma_length; 13524 13525 tmp_ptr = (uint8_t *)local_sglist[i].addr; 13526 tmp_ptr += local_used; 13527 13528 /* Use physical addresses when talking to ISC hardware */ 13529 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 13530 /* XXX KDM use busdma */ 13531#if 0 13532 rq->local = vtophys(tmp_ptr); 13533#endif 13534 } else 13535 rq->local = tmp_ptr; 13536 13537 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 13538 tmp_ptr += remote_used; 13539 rq->remote = tmp_ptr; 13540 13541 rq->callback = NULL; 13542 13543 local_used += cur_len; 13544 if (local_used >= local_sglist[i].len) { 13545 i++; 13546 local_used = 0; 13547 } 13548 13549 remote_used += cur_len; 13550 if (remote_used >= remote_sglist[j].len) { 13551 j++; 13552 remote_used = 0; 13553 } 13554 total_used += cur_len; 13555 13556 if (total_used >= io->scsiio.kern_data_len) 13557 rq->callback = callback; 13558 13559 if ((rq->size & 0x7) != 0) { 13560 printf("%s: warning: size %d is not on 8b boundary\n", 13561 __func__, rq->size); 13562 } 13563 if (((uintptr_t)rq->local & 0x7) != 0) { 13564 printf("%s: warning: local %p not on 8b boundary\n", 13565 __func__, rq->local); 13566 } 13567 if (((uintptr_t)rq->remote & 0x7) != 0) { 13568 printf("%s: warning: remote %p not on 8b boundary\n", 13569 __func__, rq->local); 13570 } 13571#if 0 13572 printf("%s: %s: local %#x remote %#x size %d\n", __func__, 13573 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13574 rq->local, rq->remote, rq->size); 13575#endif 13576 13577 isc_ret = ctl_dt_single(rq); 13578 if (isc_ret == CTL_HA_STATUS_WAIT) 13579 continue; 13580 13581 if (isc_ret == CTL_HA_STATUS_DISCONNECT) { 13582 rq->ret = CTL_HA_STATUS_SUCCESS; 13583 } else { 13584 rq->ret = isc_ret; 13585 } 13586 callback(rq); 13587 goto bailout; 13588 } 13589 13590bailout: 13591 return (retval); 13592 13593} 13594 13595static void 13596ctl_datamove_remote_read(union ctl_io *io) 13597{ 13598 int retval; 13599 int i; 13600 13601 /* 13602 * This will send an error to the other controller in the case of a 13603 * failure. 13604 */ 13605 retval = ctl_datamove_remote_sgl_setup(io); 13606 if (retval != 0) 13607 return; 13608 13609 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13610 ctl_datamove_remote_read_cb); 13611 if ((retval != 0) 13612 && ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0)) { 13613 /* 13614 * Make sure we free memory if there was an error.. The 13615 * ctl_datamove_remote_xfer() function will send the 13616 * datamove done message, or call the callback with an 13617 * error if there is a problem. 13618 */ 13619 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13620 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13621 } 13622 13623 return; 13624} 13625 13626/* 13627 * Process a datamove request from the other controller. This is used for 13628 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13629 * first. Once that is complete, the data gets DMAed into the remote 13630 * controller's memory. For reads, we DMA from the remote controller's 13631 * memory into our memory first, and then move it out to the FETD. 13632 */ 13633static void 13634ctl_datamove_remote(union ctl_io *io) 13635{ 13636 struct ctl_softc *softc; 13637 13638 softc = control_softc; 13639 13640 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 13641 13642 /* 13643 * Note that we look for an aborted I/O here, but don't do some of 13644 * the other checks that ctl_datamove() normally does. 13645 * We don't need to run the datamove delay code, since that should 13646 * have been done if need be on the other controller. 13647 */ 13648 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13649 printf("%s: tag 0x%04x on (%d:%d:%d:%d) aborted\n", __func__, 13650 io->scsiio.tag_num, io->io_hdr.nexus.initid.id, 13651 io->io_hdr.nexus.targ_port, 13652 io->io_hdr.nexus.targ_target.id, 13653 io->io_hdr.nexus.targ_lun); 13654 io->io_hdr.port_status = 31338; 13655 ctl_send_datamove_done(io, /*have_lock*/ 0); 13656 return; 13657 } 13658 13659 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) { 13660 ctl_datamove_remote_write(io); 13661 } else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN){ 13662 ctl_datamove_remote_read(io); 13663 } else { 13664 union ctl_ha_msg msg; 13665 struct scsi_sense_data *sense; 13666 uint8_t sks[3]; 13667 int retry_count; 13668 13669 memset(&msg, 0, sizeof(msg)); 13670 13671 msg.hdr.msg_type = CTL_MSG_BAD_JUJU; 13672 msg.hdr.status = CTL_SCSI_ERROR; 13673 msg.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 13674 13675 retry_count = 4243; 13676 13677 sense = &msg.scsi.sense_data; 13678 sks[0] = SSD_SCS_VALID; 13679 sks[1] = (retry_count >> 8) & 0xff; 13680 sks[2] = retry_count & 0xff; 13681 13682 /* "Internal target failure" */ 13683 scsi_set_sense_data(sense, 13684 /*sense_format*/ SSD_TYPE_NONE, 13685 /*current_error*/ 1, 13686 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 13687 /*asc*/ 0x44, 13688 /*ascq*/ 0x00, 13689 /*type*/ SSD_ELEM_SKS, 13690 /*size*/ sizeof(sks), 13691 /*data*/ sks, 13692 SSD_ELEM_NONE); 13693 13694 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13695 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13696 ctl_failover_io(io, /*have_lock*/ 1); 13697 return; 13698 } 13699 13700 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0) > 13701 CTL_HA_STATUS_SUCCESS) { 13702 /* XXX KDM what to do if this fails? */ 13703 } 13704 return; 13705 } 13706 13707} 13708 13709static int 13710ctl_process_done(union ctl_io *io) 13711{ 13712 struct ctl_lun *lun; 13713 struct ctl_softc *ctl_softc; 13714 void (*fe_done)(union ctl_io *io); 13715 uint32_t targ_port = ctl_port_idx(io->io_hdr.nexus.targ_port); 13716 13717 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13718 13719 fe_done = 13720 control_softc->ctl_ports[targ_port]->fe_done; 13721 13722#ifdef CTL_TIME_IO 13723 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13724 char str[256]; 13725 char path_str[64]; 13726 struct sbuf sb; 13727 13728 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13729 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13730 13731 sbuf_cat(&sb, path_str); 13732 switch (io->io_hdr.io_type) { 13733 case CTL_IO_SCSI: 13734 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13735 sbuf_printf(&sb, "\n"); 13736 sbuf_cat(&sb, path_str); 13737 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13738 io->scsiio.tag_num, io->scsiio.tag_type); 13739 break; 13740 case CTL_IO_TASK: 13741 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13742 "Tag Type: %d\n", io->taskio.task_action, 13743 io->taskio.tag_num, io->taskio.tag_type); 13744 break; 13745 default: 13746 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13747 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13748 break; 13749 } 13750 sbuf_cat(&sb, path_str); 13751 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13752 (intmax_t)time_uptime - io->io_hdr.start_time); 13753 sbuf_finish(&sb); 13754 printf("%s", sbuf_data(&sb)); 13755 } 13756#endif /* CTL_TIME_IO */ 13757 13758 switch (io->io_hdr.io_type) { 13759 case CTL_IO_SCSI: 13760 break; 13761 case CTL_IO_TASK: 13762 if (bootverbose || (ctl_debug & CTL_DEBUG_INFO)) 13763 ctl_io_error_print(io, NULL); 13764 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 13765 ctl_free_io(io); 13766 else 13767 fe_done(io); 13768 return (CTL_RETVAL_COMPLETE); 13769 default: 13770 panic("ctl_process_done: invalid io type %d\n", 13771 io->io_hdr.io_type); 13772 break; /* NOTREACHED */ 13773 } 13774 13775 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13776 if (lun == NULL) { 13777 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13778 io->io_hdr.nexus.targ_mapped_lun)); 13779 fe_done(io); 13780 goto bailout; 13781 } 13782 ctl_softc = lun->ctl_softc; 13783 13784 mtx_lock(&lun->lun_lock); 13785 13786 /* 13787 * Check to see if we have any errors to inject here. We only 13788 * inject errors for commands that don't already have errors set. 13789 */ 13790 if ((STAILQ_FIRST(&lun->error_list) != NULL) 13791 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) 13792 ctl_inject_error(lun, io); 13793 13794 /* 13795 * XXX KDM how do we treat commands that aren't completed 13796 * successfully? 13797 * 13798 * XXX KDM should we also track I/O latency? 13799 */ 13800 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13801 io->io_hdr.io_type == CTL_IO_SCSI) { 13802#ifdef CTL_TIME_IO 13803 struct bintime cur_bt; 13804#endif 13805 int type; 13806 13807 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13808 CTL_FLAG_DATA_IN) 13809 type = CTL_STATS_READ; 13810 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13811 CTL_FLAG_DATA_OUT) 13812 type = CTL_STATS_WRITE; 13813 else 13814 type = CTL_STATS_NO_IO; 13815 13816 lun->stats.ports[targ_port].bytes[type] += 13817 io->scsiio.kern_total_len; 13818 lun->stats.ports[targ_port].operations[type]++; 13819#ifdef CTL_TIME_IO 13820 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13821 &io->io_hdr.dma_bt); 13822 lun->stats.ports[targ_port].num_dmas[type] += 13823 io->io_hdr.num_dmas; 13824 getbintime(&cur_bt); 13825 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13826 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13827#endif 13828 } 13829 13830 /* 13831 * Remove this from the OOA queue. 13832 */ 13833 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13834 13835 /* 13836 * Run through the blocked queue on this LUN and see if anything 13837 * has become unblocked, now that this transaction is done. 13838 */ 13839 ctl_check_blocked(lun); 13840 13841 /* 13842 * If the LUN has been invalidated, free it if there is nothing 13843 * left on its OOA queue. 13844 */ 13845 if ((lun->flags & CTL_LUN_INVALID) 13846 && TAILQ_EMPTY(&lun->ooa_queue)) { 13847 mtx_unlock(&lun->lun_lock); 13848 mtx_lock(&ctl_softc->ctl_lock); 13849 ctl_free_lun(lun); 13850 mtx_unlock(&ctl_softc->ctl_lock); 13851 } else 13852 mtx_unlock(&lun->lun_lock); 13853 13854 /* 13855 * If this command has been aborted, make sure we set the status 13856 * properly. The FETD is responsible for freeing the I/O and doing 13857 * whatever it needs to do to clean up its state. 13858 */ 13859 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13860 ctl_set_task_aborted(&io->scsiio); 13861 13862 /* 13863 * If enabled, print command error status. 13864 * We don't print UAs unless debugging was enabled explicitly. 13865 */ 13866 do { 13867 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) 13868 break; 13869 if (!bootverbose && (ctl_debug & CTL_DEBUG_INFO) == 0) 13870 break; 13871 if ((ctl_debug & CTL_DEBUG_INFO) == 0 && 13872 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SCSI_ERROR) && 13873 (io->scsiio.scsi_status == SCSI_STATUS_CHECK_COND)) { 13874 int error_code, sense_key, asc, ascq; 13875 13876 scsi_extract_sense_len(&io->scsiio.sense_data, 13877 io->scsiio.sense_len, &error_code, &sense_key, 13878 &asc, &ascq, /*show_errors*/ 0); 13879 if (sense_key == SSD_KEY_UNIT_ATTENTION) 13880 break; 13881 } 13882 13883 ctl_io_error_print(io, NULL); 13884 } while (0); 13885 13886 /* 13887 * Tell the FETD or the other shelf controller we're done with this 13888 * command. Note that only SCSI commands get to this point. Task 13889 * management commands are completed above. 13890 * 13891 * We only send status to the other controller if we're in XFER 13892 * mode. In SER_ONLY mode, the I/O is done on the controller that 13893 * received the I/O (from CTL's perspective), and so the status is 13894 * generated there. 13895 * 13896 * XXX KDM if we hold the lock here, we could cause a deadlock 13897 * if the frontend comes back in in this context to queue 13898 * something. 13899 */ 13900 if ((ctl_softc->ha_mode == CTL_HA_MODE_XFER) 13901 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 13902 union ctl_ha_msg msg; 13903 13904 memset(&msg, 0, sizeof(msg)); 13905 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13906 msg.hdr.original_sc = io->io_hdr.original_sc; 13907 msg.hdr.nexus = io->io_hdr.nexus; 13908 msg.hdr.status = io->io_hdr.status; 13909 msg.scsi.scsi_status = io->scsiio.scsi_status; 13910 msg.scsi.tag_num = io->scsiio.tag_num; 13911 msg.scsi.tag_type = io->scsiio.tag_type; 13912 msg.scsi.sense_len = io->scsiio.sense_len; 13913 msg.scsi.sense_residual = io->scsiio.sense_residual; 13914 msg.scsi.residual = io->scsiio.residual; 13915 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13916 sizeof(io->scsiio.sense_data)); 13917 /* 13918 * We copy this whether or not this is an I/O-related 13919 * command. Otherwise, we'd have to go and check to see 13920 * whether it's a read/write command, and it really isn't 13921 * worth it. 13922 */ 13923 memcpy(&msg.scsi.lbalen, 13924 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 13925 sizeof(msg.scsi.lbalen)); 13926 13927 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13928 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13929 /* XXX do something here */ 13930 } 13931 13932 ctl_free_io(io); 13933 } else 13934 fe_done(io); 13935 13936bailout: 13937 13938 return (CTL_RETVAL_COMPLETE); 13939} 13940 13941#ifdef CTL_WITH_CA 13942/* 13943 * Front end should call this if it doesn't do autosense. When the request 13944 * sense comes back in from the initiator, we'll dequeue this and send it. 13945 */ 13946int 13947ctl_queue_sense(union ctl_io *io) 13948{ 13949 struct ctl_lun *lun; 13950 struct ctl_softc *ctl_softc; 13951 uint32_t initidx, targ_lun; 13952 13953 ctl_softc = control_softc; 13954 13955 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13956 13957 /* 13958 * LUN lookup will likely move to the ctl_work_thread() once we 13959 * have our new queueing infrastructure (that doesn't put things on 13960 * a per-LUN queue initially). That is so that we can handle 13961 * things like an INQUIRY to a LUN that we don't have enabled. We 13962 * can't deal with that right now. 13963 */ 13964 mtx_lock(&ctl_softc->ctl_lock); 13965 13966 /* 13967 * If we don't have a LUN for this, just toss the sense 13968 * information. 13969 */ 13970 targ_lun = io->io_hdr.nexus.targ_lun; 13971 targ_lun = ctl_map_lun(io->io_hdr.nexus.targ_port, targ_lun); 13972 if ((targ_lun < CTL_MAX_LUNS) 13973 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 13974 lun = ctl_softc->ctl_luns[targ_lun]; 13975 else 13976 goto bailout; 13977 13978 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13979 13980 mtx_lock(&lun->lun_lock); 13981 /* 13982 * Already have CA set for this LUN...toss the sense information. 13983 */ 13984 if (ctl_is_set(lun->have_ca, initidx)) { 13985 mtx_unlock(&lun->lun_lock); 13986 goto bailout; 13987 } 13988 13989 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13990 ctl_min(sizeof(lun->pending_sense[initidx]), 13991 sizeof(io->scsiio.sense_data))); 13992 ctl_set_mask(lun->have_ca, initidx); 13993 mtx_unlock(&lun->lun_lock); 13994 13995bailout: 13996 mtx_unlock(&ctl_softc->ctl_lock); 13997 13998 ctl_free_io(io); 13999 14000 return (CTL_RETVAL_COMPLETE); 14001} 14002#endif 14003 14004/* 14005 * Primary command inlet from frontend ports. All SCSI and task I/O 14006 * requests must go through this function. 14007 */ 14008int 14009ctl_queue(union ctl_io *io) 14010{ 14011 struct ctl_softc *ctl_softc; 14012 14013 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 14014 14015 ctl_softc = control_softc; 14016 14017#ifdef CTL_TIME_IO 14018 io->io_hdr.start_time = time_uptime; 14019 getbintime(&io->io_hdr.start_bt); 14020#endif /* CTL_TIME_IO */ 14021 14022 /* Map FE-specific LUN ID into global one. */ 14023 io->io_hdr.nexus.targ_mapped_lun = 14024 ctl_map_lun(io->io_hdr.nexus.targ_port, io->io_hdr.nexus.targ_lun); 14025 14026 switch (io->io_hdr.io_type) { 14027 case CTL_IO_SCSI: 14028 case CTL_IO_TASK: 14029 if (ctl_debug & CTL_DEBUG_CDB) 14030 ctl_io_print(io); 14031 ctl_enqueue_incoming(io); 14032 break; 14033 default: 14034 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 14035 return (EINVAL); 14036 } 14037 14038 return (CTL_RETVAL_COMPLETE); 14039} 14040 14041#ifdef CTL_IO_DELAY 14042static void 14043ctl_done_timer_wakeup(void *arg) 14044{ 14045 union ctl_io *io; 14046 14047 io = (union ctl_io *)arg; 14048 ctl_done(io); 14049} 14050#endif /* CTL_IO_DELAY */ 14051 14052void 14053ctl_done(union ctl_io *io) 14054{ 14055 struct ctl_softc *ctl_softc; 14056 14057 ctl_softc = control_softc; 14058 14059 /* 14060 * Enable this to catch duplicate completion issues. 14061 */ 14062#if 0 14063 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 14064 printf("%s: type %d msg %d cdb %x iptl: " 14065 "%d:%d:%d:%d tag 0x%04x " 14066 "flag %#x status %x\n", 14067 __func__, 14068 io->io_hdr.io_type, 14069 io->io_hdr.msg_type, 14070 io->scsiio.cdb[0], 14071 io->io_hdr.nexus.initid.id, 14072 io->io_hdr.nexus.targ_port, 14073 io->io_hdr.nexus.targ_target.id, 14074 io->io_hdr.nexus.targ_lun, 14075 (io->io_hdr.io_type == 14076 CTL_IO_TASK) ? 14077 io->taskio.tag_num : 14078 io->scsiio.tag_num, 14079 io->io_hdr.flags, 14080 io->io_hdr.status); 14081 } else 14082 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 14083#endif 14084 14085 /* 14086 * This is an internal copy of an I/O, and should not go through 14087 * the normal done processing logic. 14088 */ 14089 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 14090 return; 14091 14092 /* 14093 * We need to send a msg to the serializing shelf to finish the IO 14094 * as well. We don't send a finish message to the other shelf if 14095 * this is a task management command. Task management commands 14096 * aren't serialized in the OOA queue, but rather just executed on 14097 * both shelf controllers for commands that originated on that 14098 * controller. 14099 */ 14100 if ((io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC) 14101 && (io->io_hdr.io_type != CTL_IO_TASK)) { 14102 union ctl_ha_msg msg_io; 14103 14104 msg_io.hdr.msg_type = CTL_MSG_FINISH_IO; 14105 msg_io.hdr.serializing_sc = io->io_hdr.serializing_sc; 14106 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_io, 14107 sizeof(msg_io), 0 ) != CTL_HA_STATUS_SUCCESS) { 14108 } 14109 /* continue on to finish IO */ 14110 } 14111#ifdef CTL_IO_DELAY 14112 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 14113 struct ctl_lun *lun; 14114 14115 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14116 14117 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 14118 } else { 14119 struct ctl_lun *lun; 14120 14121 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14122 14123 if ((lun != NULL) 14124 && (lun->delay_info.done_delay > 0)) { 14125 struct callout *callout; 14126 14127 callout = (struct callout *)&io->io_hdr.timer_bytes; 14128 callout_init(callout, /*mpsafe*/ 1); 14129 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 14130 callout_reset(callout, 14131 lun->delay_info.done_delay * hz, 14132 ctl_done_timer_wakeup, io); 14133 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 14134 lun->delay_info.done_delay = 0; 14135 return; 14136 } 14137 } 14138#endif /* CTL_IO_DELAY */ 14139 14140 ctl_enqueue_done(io); 14141} 14142 14143int 14144ctl_isc(struct ctl_scsiio *ctsio) 14145{ 14146 struct ctl_lun *lun; 14147 int retval; 14148 14149 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 14150 14151 CTL_DEBUG_PRINT(("ctl_isc: command: %02x\n", ctsio->cdb[0])); 14152 14153 CTL_DEBUG_PRINT(("ctl_isc: calling data_submit()\n")); 14154 14155 retval = lun->backend->data_submit((union ctl_io *)ctsio); 14156 14157 return (retval); 14158} 14159 14160 14161static void 14162ctl_work_thread(void *arg) 14163{ 14164 struct ctl_thread *thr = (struct ctl_thread *)arg; 14165 struct ctl_softc *softc = thr->ctl_softc; 14166 union ctl_io *io; 14167 int retval; 14168 14169 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 14170 14171 for (;;) { 14172 retval = 0; 14173 14174 /* 14175 * We handle the queues in this order: 14176 * - ISC 14177 * - done queue (to free up resources, unblock other commands) 14178 * - RtR queue 14179 * - incoming queue 14180 * 14181 * If those queues are empty, we break out of the loop and 14182 * go to sleep. 14183 */ 14184 mtx_lock(&thr->queue_lock); 14185 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 14186 if (io != NULL) { 14187 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 14188 mtx_unlock(&thr->queue_lock); 14189 ctl_handle_isc(io); 14190 continue; 14191 } 14192 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 14193 if (io != NULL) { 14194 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 14195 /* clear any blocked commands, call fe_done */ 14196 mtx_unlock(&thr->queue_lock); 14197 retval = ctl_process_done(io); 14198 continue; 14199 } 14200 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 14201 if (io != NULL) { 14202 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 14203 mtx_unlock(&thr->queue_lock); 14204 if (io->io_hdr.io_type == CTL_IO_TASK) 14205 ctl_run_task(io); 14206 else 14207 ctl_scsiio_precheck(softc, &io->scsiio); 14208 continue; 14209 } 14210 if (!ctl_pause_rtr) { 14211 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 14212 if (io != NULL) { 14213 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 14214 mtx_unlock(&thr->queue_lock); 14215 retval = ctl_scsiio(&io->scsiio); 14216 if (retval != CTL_RETVAL_COMPLETE) 14217 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 14218 continue; 14219 } 14220 } 14221 14222 /* Sleep until we have something to do. */ 14223 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 14224 } 14225} 14226 14227static void 14228ctl_lun_thread(void *arg) 14229{ 14230 struct ctl_softc *softc = (struct ctl_softc *)arg; 14231 struct ctl_be_lun *be_lun; 14232 int retval; 14233 14234 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 14235 14236 for (;;) { 14237 retval = 0; 14238 mtx_lock(&softc->ctl_lock); 14239 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 14240 if (be_lun != NULL) { 14241 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 14242 mtx_unlock(&softc->ctl_lock); 14243 ctl_create_lun(be_lun); 14244 continue; 14245 } 14246 14247 /* Sleep until we have something to do. */ 14248 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 14249 PDROP | PRIBIO, "-", 0); 14250 } 14251} 14252 14253static void 14254ctl_thresh_thread(void *arg) 14255{ 14256 struct ctl_softc *softc = (struct ctl_softc *)arg; 14257 struct ctl_lun *lun; 14258 struct ctl_be_lun *be_lun; 14259 struct scsi_da_rw_recovery_page *rwpage; 14260 struct ctl_logical_block_provisioning_page *page; 14261 const char *attr; 14262 uint64_t thres, val; 14263 int i, e; 14264 14265 CTL_DEBUG_PRINT(("ctl_thresh_thread starting\n")); 14266 14267 for (;;) { 14268 mtx_lock(&softc->ctl_lock); 14269 STAILQ_FOREACH(lun, &softc->lun_list, links) { 14270 be_lun = lun->be_lun; 14271 if ((lun->flags & CTL_LUN_DISABLED) || 14272 (lun->flags & CTL_LUN_OFFLINE) || 14273 (be_lun->flags & CTL_LUN_FLAG_UNMAP) == 0 || 14274 lun->backend->lun_attr == NULL) 14275 continue; 14276 rwpage = &lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT]; 14277 if ((rwpage->byte8 & SMS_RWER_LBPERE) == 0) 14278 continue; 14279 e = 0; 14280 page = &lun->mode_pages.lbp_page[CTL_PAGE_CURRENT]; 14281 for (i = 0; i < CTL_NUM_LBP_THRESH; i++) { 14282 if ((page->descr[i].flags & SLBPPD_ENABLED) == 0) 14283 continue; 14284 thres = scsi_4btoul(page->descr[i].count); 14285 thres <<= CTL_LBP_EXPONENT; 14286 switch (page->descr[i].resource) { 14287 case 0x01: 14288 attr = "blocksavail"; 14289 break; 14290 case 0x02: 14291 attr = "blocksused"; 14292 break; 14293 case 0xf1: 14294 attr = "poolblocksavail"; 14295 break; 14296 case 0xf2: 14297 attr = "poolblocksused"; 14298 break; 14299 default: 14300 continue; 14301 } 14302 mtx_unlock(&softc->ctl_lock); // XXX 14303 val = lun->backend->lun_attr( 14304 lun->be_lun->be_lun, attr); 14305 mtx_lock(&softc->ctl_lock); 14306 if (val == UINT64_MAX) 14307 continue; 14308 if ((page->descr[i].flags & SLBPPD_ARMING_MASK) 14309 == SLBPPD_ARMING_INC) 14310 e |= (val >= thres); 14311 else 14312 e |= (val <= thres); 14313 } 14314 mtx_lock(&lun->lun_lock); 14315 if (e) { 14316 if (lun->lasttpt == 0 || 14317 time_uptime - lun->lasttpt >= CTL_LBP_UA_PERIOD) { 14318 lun->lasttpt = time_uptime; 14319 for (i = 0; i < CTL_MAX_INITIATORS; i++) 14320 lun->pending_ua[i] |= 14321 CTL_UA_THIN_PROV_THRES; 14322 } 14323 } else { 14324 lun->lasttpt = 0; 14325 for (i = 0; i < CTL_MAX_INITIATORS; i++) 14326 lun->pending_ua[i] &= ~CTL_UA_THIN_PROV_THRES; 14327 } 14328 mtx_unlock(&lun->lun_lock); 14329 } 14330 mtx_unlock(&softc->ctl_lock); 14331 pause("-", CTL_LBP_PERIOD * hz); 14332 } 14333} 14334 14335static void 14336ctl_enqueue_incoming(union ctl_io *io) 14337{ 14338 struct ctl_softc *softc = control_softc; 14339 struct ctl_thread *thr; 14340 u_int idx; 14341 14342 idx = (io->io_hdr.nexus.targ_port * 127 + 14343 io->io_hdr.nexus.initid.id) % worker_threads; 14344 thr = &softc->threads[idx]; 14345 mtx_lock(&thr->queue_lock); 14346 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 14347 mtx_unlock(&thr->queue_lock); 14348 wakeup(thr); 14349} 14350 14351static void 14352ctl_enqueue_rtr(union ctl_io *io) 14353{ 14354 struct ctl_softc *softc = control_softc; 14355 struct ctl_thread *thr; 14356 14357 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14358 mtx_lock(&thr->queue_lock); 14359 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 14360 mtx_unlock(&thr->queue_lock); 14361 wakeup(thr); 14362} 14363 14364static void 14365ctl_enqueue_done(union ctl_io *io) 14366{ 14367 struct ctl_softc *softc = control_softc; 14368 struct ctl_thread *thr; 14369 14370 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14371 mtx_lock(&thr->queue_lock); 14372 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 14373 mtx_unlock(&thr->queue_lock); 14374 wakeup(thr); 14375} 14376 14377static void 14378ctl_enqueue_isc(union ctl_io *io) 14379{ 14380 struct ctl_softc *softc = control_softc; 14381 struct ctl_thread *thr; 14382 14383 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14384 mtx_lock(&thr->queue_lock); 14385 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 14386 mtx_unlock(&thr->queue_lock); 14387 wakeup(thr); 14388} 14389 14390/* Initialization and failover */ 14391 14392void 14393ctl_init_isc_msg(void) 14394{ 14395 printf("CTL: Still calling this thing\n"); 14396} 14397 14398/* 14399 * Init component 14400 * Initializes component into configuration defined by bootMode 14401 * (see hasc-sv.c) 14402 * returns hasc_Status: 14403 * OK 14404 * ERROR - fatal error 14405 */ 14406static ctl_ha_comp_status 14407ctl_isc_init(struct ctl_ha_component *c) 14408{ 14409 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14410 14411 c->status = ret; 14412 return ret; 14413} 14414 14415/* Start component 14416 * Starts component in state requested. If component starts successfully, 14417 * it must set its own state to the requestrd state 14418 * When requested state is HASC_STATE_HA, the component may refine it 14419 * by adding _SLAVE or _MASTER flags. 14420 * Currently allowed state transitions are: 14421 * UNKNOWN->HA - initial startup 14422 * UNKNOWN->SINGLE - initial startup when no parter detected 14423 * HA->SINGLE - failover 14424 * returns ctl_ha_comp_status: 14425 * OK - component successfully started in requested state 14426 * FAILED - could not start the requested state, failover may 14427 * be possible 14428 * ERROR - fatal error detected, no future startup possible 14429 */ 14430static ctl_ha_comp_status 14431ctl_isc_start(struct ctl_ha_component *c, ctl_ha_state state) 14432{ 14433 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14434 14435 printf("%s: go\n", __func__); 14436 14437 // UNKNOWN->HA or UNKNOWN->SINGLE (bootstrap) 14438 if (c->state == CTL_HA_STATE_UNKNOWN ) { 14439 control_softc->is_single = 0; 14440 if (ctl_ha_msg_create(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 14441 != CTL_HA_STATUS_SUCCESS) { 14442 printf("ctl_isc_start: ctl_ha_msg_create failed.\n"); 14443 ret = CTL_HA_COMP_STATUS_ERROR; 14444 } 14445 } else if (CTL_HA_STATE_IS_HA(c->state) 14446 && CTL_HA_STATE_IS_SINGLE(state)){ 14447 // HA->SINGLE transition 14448 ctl_failover(); 14449 control_softc->is_single = 1; 14450 } else { 14451 printf("ctl_isc_start:Invalid state transition %X->%X\n", 14452 c->state, state); 14453 ret = CTL_HA_COMP_STATUS_ERROR; 14454 } 14455 if (CTL_HA_STATE_IS_SINGLE(state)) 14456 control_softc->is_single = 1; 14457 14458 c->state = state; 14459 c->status = ret; 14460 return ret; 14461} 14462 14463/* 14464 * Quiesce component 14465 * The component must clear any error conditions (set status to OK) and 14466 * prepare itself to another Start call 14467 * returns ctl_ha_comp_status: 14468 * OK 14469 * ERROR 14470 */ 14471static ctl_ha_comp_status 14472ctl_isc_quiesce(struct ctl_ha_component *c) 14473{ 14474 int ret = CTL_HA_COMP_STATUS_OK; 14475 14476 ctl_pause_rtr = 1; 14477 c->status = ret; 14478 return ret; 14479} 14480 14481struct ctl_ha_component ctl_ha_component_ctlisc = 14482{ 14483 .name = "CTL ISC", 14484 .state = CTL_HA_STATE_UNKNOWN, 14485 .init = ctl_isc_init, 14486 .start = ctl_isc_start, 14487 .quiesce = ctl_isc_quiesce 14488}; 14489 14490/* 14491 * vim: ts=8 14492 */ 14493