ctl.c revision 287778
1/*- 2 * Copyright (c) 2003-2009 Silicon Graphics International Corp. 3 * Copyright (c) 2012 The FreeBSD Foundation 4 * Copyright (c) 2015 Alexander Motin <mav@FreeBSD.org> 5 * All rights reserved. 6 * 7 * Portions of this software were developed by Edward Tomasz Napierala 8 * under sponsorship from the FreeBSD Foundation. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions, and the following disclaimer, 15 * without modification. 16 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 17 * substantially similar to the "NO WARRANTY" disclaimer below 18 * ("Disclaimer") and any redistribution must be conditioned upon 19 * including a substantially similar Disclaimer requirement for further 20 * binary redistribution. 21 * 22 * NO WARRANTY 23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 24 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 25 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 26 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 27 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 31 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 32 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 33 * POSSIBILITY OF SUCH DAMAGES. 34 * 35 * $Id$ 36 */ 37/* 38 * CAM Target Layer, a SCSI device emulation subsystem. 39 * 40 * Author: Ken Merry <ken@FreeBSD.org> 41 */ 42 43#define _CTL_C 44 45#include <sys/cdefs.h> 46__FBSDID("$FreeBSD: head/sys/cam/ctl/ctl.c 287778 2015-09-14 09:56:01Z mav $"); 47 48#include <sys/param.h> 49#include <sys/systm.h> 50#include <sys/ctype.h> 51#include <sys/kernel.h> 52#include <sys/types.h> 53#include <sys/kthread.h> 54#include <sys/bio.h> 55#include <sys/fcntl.h> 56#include <sys/lock.h> 57#include <sys/module.h> 58#include <sys/mutex.h> 59#include <sys/condvar.h> 60#include <sys/malloc.h> 61#include <sys/conf.h> 62#include <sys/ioccom.h> 63#include <sys/queue.h> 64#include <sys/sbuf.h> 65#include <sys/smp.h> 66#include <sys/endian.h> 67#include <sys/sysctl.h> 68#include <vm/uma.h> 69 70#include <cam/cam.h> 71#include <cam/scsi/scsi_all.h> 72#include <cam/scsi/scsi_da.h> 73#include <cam/ctl/ctl_io.h> 74#include <cam/ctl/ctl.h> 75#include <cam/ctl/ctl_frontend.h> 76#include <cam/ctl/ctl_util.h> 77#include <cam/ctl/ctl_backend.h> 78#include <cam/ctl/ctl_ioctl.h> 79#include <cam/ctl/ctl_ha.h> 80#include <cam/ctl/ctl_private.h> 81#include <cam/ctl/ctl_debug.h> 82#include <cam/ctl/ctl_scsi_all.h> 83#include <cam/ctl/ctl_error.h> 84 85struct ctl_softc *control_softc = NULL; 86 87/* 88 * Template mode pages. 89 */ 90 91/* 92 * Note that these are default values only. The actual values will be 93 * filled in when the user does a mode sense. 94 */ 95const static struct copan_debugconf_subpage debugconf_page_default = { 96 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 97 DBGCNF_SUBPAGE_CODE, /* subpage */ 98 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 99 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 100 DBGCNF_VERSION, /* page_version */ 101 {CTL_TIME_IO_DEFAULT_SECS>>8, 102 CTL_TIME_IO_DEFAULT_SECS>>0}, /* ctl_time_io_secs */ 103}; 104 105const static struct copan_debugconf_subpage debugconf_page_changeable = { 106 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 107 DBGCNF_SUBPAGE_CODE, /* subpage */ 108 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 109 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 110 0, /* page_version */ 111 {0xff,0xff}, /* ctl_time_io_secs */ 112}; 113 114const static struct scsi_da_rw_recovery_page rw_er_page_default = { 115 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 116 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 117 /*byte3*/SMS_RWER_AWRE|SMS_RWER_ARRE, 118 /*read_retry_count*/0, 119 /*correction_span*/0, 120 /*head_offset_count*/0, 121 /*data_strobe_offset_cnt*/0, 122 /*byte8*/SMS_RWER_LBPERE, 123 /*write_retry_count*/0, 124 /*reserved2*/0, 125 /*recovery_time_limit*/{0, 0}, 126}; 127 128const static struct scsi_da_rw_recovery_page rw_er_page_changeable = { 129 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 130 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 131 /*byte3*/0, 132 /*read_retry_count*/0, 133 /*correction_span*/0, 134 /*head_offset_count*/0, 135 /*data_strobe_offset_cnt*/0, 136 /*byte8*/0, 137 /*write_retry_count*/0, 138 /*reserved2*/0, 139 /*recovery_time_limit*/{0, 0}, 140}; 141 142const static struct scsi_format_page format_page_default = { 143 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 144 /*page_length*/sizeof(struct scsi_format_page) - 2, 145 /*tracks_per_zone*/ {0, 0}, 146 /*alt_sectors_per_zone*/ {0, 0}, 147 /*alt_tracks_per_zone*/ {0, 0}, 148 /*alt_tracks_per_lun*/ {0, 0}, 149 /*sectors_per_track*/ {(CTL_DEFAULT_SECTORS_PER_TRACK >> 8) & 0xff, 150 CTL_DEFAULT_SECTORS_PER_TRACK & 0xff}, 151 /*bytes_per_sector*/ {0, 0}, 152 /*interleave*/ {0, 0}, 153 /*track_skew*/ {0, 0}, 154 /*cylinder_skew*/ {0, 0}, 155 /*flags*/ SFP_HSEC, 156 /*reserved*/ {0, 0, 0} 157}; 158 159const static struct scsi_format_page format_page_changeable = { 160 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 161 /*page_length*/sizeof(struct scsi_format_page) - 2, 162 /*tracks_per_zone*/ {0, 0}, 163 /*alt_sectors_per_zone*/ {0, 0}, 164 /*alt_tracks_per_zone*/ {0, 0}, 165 /*alt_tracks_per_lun*/ {0, 0}, 166 /*sectors_per_track*/ {0, 0}, 167 /*bytes_per_sector*/ {0, 0}, 168 /*interleave*/ {0, 0}, 169 /*track_skew*/ {0, 0}, 170 /*cylinder_skew*/ {0, 0}, 171 /*flags*/ 0, 172 /*reserved*/ {0, 0, 0} 173}; 174 175const static struct scsi_rigid_disk_page rigid_disk_page_default = { 176 /*page_code*/SMS_RIGID_DISK_PAGE, 177 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 178 /*cylinders*/ {0, 0, 0}, 179 /*heads*/ CTL_DEFAULT_HEADS, 180 /*start_write_precomp*/ {0, 0, 0}, 181 /*start_reduced_current*/ {0, 0, 0}, 182 /*step_rate*/ {0, 0}, 183 /*landing_zone_cylinder*/ {0, 0, 0}, 184 /*rpl*/ SRDP_RPL_DISABLED, 185 /*rotational_offset*/ 0, 186 /*reserved1*/ 0, 187 /*rotation_rate*/ {(CTL_DEFAULT_ROTATION_RATE >> 8) & 0xff, 188 CTL_DEFAULT_ROTATION_RATE & 0xff}, 189 /*reserved2*/ {0, 0} 190}; 191 192const static struct scsi_rigid_disk_page rigid_disk_page_changeable = { 193 /*page_code*/SMS_RIGID_DISK_PAGE, 194 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 195 /*cylinders*/ {0, 0, 0}, 196 /*heads*/ 0, 197 /*start_write_precomp*/ {0, 0, 0}, 198 /*start_reduced_current*/ {0, 0, 0}, 199 /*step_rate*/ {0, 0}, 200 /*landing_zone_cylinder*/ {0, 0, 0}, 201 /*rpl*/ 0, 202 /*rotational_offset*/ 0, 203 /*reserved1*/ 0, 204 /*rotation_rate*/ {0, 0}, 205 /*reserved2*/ {0, 0} 206}; 207 208const static struct scsi_caching_page caching_page_default = { 209 /*page_code*/SMS_CACHING_PAGE, 210 /*page_length*/sizeof(struct scsi_caching_page) - 2, 211 /*flags1*/ SCP_DISC | SCP_WCE, 212 /*ret_priority*/ 0, 213 /*disable_pf_transfer_len*/ {0xff, 0xff}, 214 /*min_prefetch*/ {0, 0}, 215 /*max_prefetch*/ {0xff, 0xff}, 216 /*max_pf_ceiling*/ {0xff, 0xff}, 217 /*flags2*/ 0, 218 /*cache_segments*/ 0, 219 /*cache_seg_size*/ {0, 0}, 220 /*reserved*/ 0, 221 /*non_cache_seg_size*/ {0, 0, 0} 222}; 223 224const static struct scsi_caching_page caching_page_changeable = { 225 /*page_code*/SMS_CACHING_PAGE, 226 /*page_length*/sizeof(struct scsi_caching_page) - 2, 227 /*flags1*/ SCP_WCE | SCP_RCD, 228 /*ret_priority*/ 0, 229 /*disable_pf_transfer_len*/ {0, 0}, 230 /*min_prefetch*/ {0, 0}, 231 /*max_prefetch*/ {0, 0}, 232 /*max_pf_ceiling*/ {0, 0}, 233 /*flags2*/ 0, 234 /*cache_segments*/ 0, 235 /*cache_seg_size*/ {0, 0}, 236 /*reserved*/ 0, 237 /*non_cache_seg_size*/ {0, 0, 0} 238}; 239 240const static struct scsi_control_page control_page_default = { 241 /*page_code*/SMS_CONTROL_MODE_PAGE, 242 /*page_length*/sizeof(struct scsi_control_page) - 2, 243 /*rlec*/0, 244 /*queue_flags*/SCP_QUEUE_ALG_RESTRICTED, 245 /*eca_and_aen*/0, 246 /*flags4*/SCP_TAS, 247 /*aen_holdoff_period*/{0, 0}, 248 /*busy_timeout_period*/{0, 0}, 249 /*extended_selftest_completion_time*/{0, 0} 250}; 251 252const static struct scsi_control_page control_page_changeable = { 253 /*page_code*/SMS_CONTROL_MODE_PAGE, 254 /*page_length*/sizeof(struct scsi_control_page) - 2, 255 /*rlec*/SCP_DSENSE, 256 /*queue_flags*/SCP_QUEUE_ALG_MASK, 257 /*eca_and_aen*/SCP_SWP, 258 /*flags4*/0, 259 /*aen_holdoff_period*/{0, 0}, 260 /*busy_timeout_period*/{0, 0}, 261 /*extended_selftest_completion_time*/{0, 0} 262}; 263 264const static struct scsi_info_exceptions_page ie_page_default = { 265 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 266 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 267 /*info_flags*/SIEP_FLAGS_DEXCPT, 268 /*mrie*/0, 269 /*interval_timer*/{0, 0, 0, 0}, 270 /*report_count*/{0, 0, 0, 0} 271}; 272 273const static struct scsi_info_exceptions_page ie_page_changeable = { 274 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 275 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 276 /*info_flags*/0, 277 /*mrie*/0, 278 /*interval_timer*/{0, 0, 0, 0}, 279 /*report_count*/{0, 0, 0, 0} 280}; 281 282#define CTL_LBPM_LEN (sizeof(struct ctl_logical_block_provisioning_page) - 4) 283 284const static struct ctl_logical_block_provisioning_page lbp_page_default = {{ 285 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 286 /*subpage_code*/0x02, 287 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 288 /*flags*/0, 289 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 290 /*descr*/{}}, 291 {{/*flags*/0, 292 /*resource*/0x01, 293 /*reserved*/{0, 0}, 294 /*count*/{0, 0, 0, 0}}, 295 {/*flags*/0, 296 /*resource*/0x02, 297 /*reserved*/{0, 0}, 298 /*count*/{0, 0, 0, 0}}, 299 {/*flags*/0, 300 /*resource*/0xf1, 301 /*reserved*/{0, 0}, 302 /*count*/{0, 0, 0, 0}}, 303 {/*flags*/0, 304 /*resource*/0xf2, 305 /*reserved*/{0, 0}, 306 /*count*/{0, 0, 0, 0}} 307 } 308}; 309 310const static struct ctl_logical_block_provisioning_page lbp_page_changeable = {{ 311 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 312 /*subpage_code*/0x02, 313 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 314 /*flags*/0, 315 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 316 /*descr*/{}}, 317 {{/*flags*/0, 318 /*resource*/0, 319 /*reserved*/{0, 0}, 320 /*count*/{0, 0, 0, 0}}, 321 {/*flags*/0, 322 /*resource*/0, 323 /*reserved*/{0, 0}, 324 /*count*/{0, 0, 0, 0}}, 325 {/*flags*/0, 326 /*resource*/0, 327 /*reserved*/{0, 0}, 328 /*count*/{0, 0, 0, 0}}, 329 {/*flags*/0, 330 /*resource*/0, 331 /*reserved*/{0, 0}, 332 /*count*/{0, 0, 0, 0}} 333 } 334}; 335 336SYSCTL_NODE(_kern_cam, OID_AUTO, ctl, CTLFLAG_RD, 0, "CAM Target Layer"); 337static int worker_threads = -1; 338SYSCTL_INT(_kern_cam_ctl, OID_AUTO, worker_threads, CTLFLAG_RDTUN, 339 &worker_threads, 1, "Number of worker threads"); 340static int ctl_debug = CTL_DEBUG_NONE; 341SYSCTL_INT(_kern_cam_ctl, OID_AUTO, debug, CTLFLAG_RWTUN, 342 &ctl_debug, 0, "Enabled debug flags"); 343 344/* 345 * Supported pages (0x00), Serial number (0x80), Device ID (0x83), 346 * Extended INQUIRY Data (0x86), Mode Page Policy (0x87), 347 * SCSI Ports (0x88), Third-party Copy (0x8F), Block limits (0xB0), 348 * Block Device Characteristics (0xB1) and Logical Block Provisioning (0xB2) 349 */ 350#define SCSI_EVPD_NUM_SUPPORTED_PAGES 10 351 352static void ctl_isc_event_handler(ctl_ha_channel chanel, ctl_ha_event event, 353 int param); 354static void ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest); 355static void ctl_copy_sense_data_back(union ctl_io *src, union ctl_ha_msg *dest); 356static int ctl_init(void); 357void ctl_shutdown(void); 358static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td); 359static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td); 360static int ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio); 361static int ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 362 struct ctl_ooa *ooa_hdr, 363 struct ctl_ooa_entry *kern_entries); 364static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 365 struct thread *td); 366static int ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 367 struct ctl_be_lun *be_lun); 368static int ctl_free_lun(struct ctl_lun *lun); 369static void ctl_create_lun(struct ctl_be_lun *be_lun); 370static struct ctl_port * ctl_io_port(struct ctl_io_hdr *io_hdr); 371 372static int ctl_do_mode_select(union ctl_io *io); 373static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, 374 uint64_t res_key, uint64_t sa_res_key, 375 uint8_t type, uint32_t residx, 376 struct ctl_scsiio *ctsio, 377 struct scsi_per_res_out *cdb, 378 struct scsi_per_res_out_parms* param); 379static void ctl_pro_preempt_other(struct ctl_lun *lun, 380 union ctl_ha_msg *msg); 381static void ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg); 382static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 383static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 384static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 385static int ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len); 386static int ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len); 387static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, 388 int alloc_len); 389static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 390 int alloc_len); 391static int ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len); 392static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 393static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 394static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 395static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len); 396static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2, 397 bool seq); 398static ctl_action ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2); 399static ctl_action ctl_check_for_blockage(struct ctl_lun *lun, 400 union ctl_io *pending_io, union ctl_io *ooa_io); 401static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 402 union ctl_io *starting_io); 403static int ctl_check_blocked(struct ctl_lun *lun); 404static int ctl_scsiio_lun_check(struct ctl_lun *lun, 405 const struct ctl_cmd_entry *entry, 406 struct ctl_scsiio *ctsio); 407static void ctl_failover_lun(struct ctl_lun *lun); 408static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 409 struct ctl_scsiio *ctsio); 410static int ctl_scsiio(struct ctl_scsiio *ctsio); 411 412static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 413static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 414 ctl_ua_type ua_type); 415static int ctl_do_lun_reset(struct ctl_lun *lun, union ctl_io *io, 416 ctl_ua_type ua_type); 417static int ctl_lun_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 418static int ctl_abort_task(union ctl_io *io); 419static int ctl_abort_task_set(union ctl_io *io); 420static int ctl_query_task(union ctl_io *io, int task_set); 421static int ctl_i_t_nexus_reset(union ctl_io *io); 422static int ctl_query_async_event(union ctl_io *io); 423static void ctl_run_task(union ctl_io *io); 424#ifdef CTL_IO_DELAY 425static void ctl_datamove_timer_wakeup(void *arg); 426static void ctl_done_timer_wakeup(void *arg); 427#endif /* CTL_IO_DELAY */ 428 429static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 430static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 431static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 432static void ctl_datamove_remote_write(union ctl_io *io); 433static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 434static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 435static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 436static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 437 ctl_ha_dt_cb callback); 438static void ctl_datamove_remote_read(union ctl_io *io); 439static void ctl_datamove_remote(union ctl_io *io); 440static int ctl_process_done(union ctl_io *io); 441static void ctl_lun_thread(void *arg); 442static void ctl_thresh_thread(void *arg); 443static void ctl_work_thread(void *arg); 444static void ctl_enqueue_incoming(union ctl_io *io); 445static void ctl_enqueue_rtr(union ctl_io *io); 446static void ctl_enqueue_done(union ctl_io *io); 447static void ctl_enqueue_isc(union ctl_io *io); 448static const struct ctl_cmd_entry * 449 ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa); 450static const struct ctl_cmd_entry * 451 ctl_validate_command(struct ctl_scsiio *ctsio); 452static int ctl_cmd_applicable(uint8_t lun_type, 453 const struct ctl_cmd_entry *entry); 454 455static uint64_t ctl_get_prkey(struct ctl_lun *lun, uint32_t residx); 456static void ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx); 457static void ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx); 458static void ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key); 459 460/* 461 * Load the serialization table. This isn't very pretty, but is probably 462 * the easiest way to do it. 463 */ 464#include "ctl_ser_table.c" 465 466/* 467 * We only need to define open, close and ioctl routines for this driver. 468 */ 469static struct cdevsw ctl_cdevsw = { 470 .d_version = D_VERSION, 471 .d_flags = 0, 472 .d_open = ctl_open, 473 .d_close = ctl_close, 474 .d_ioctl = ctl_ioctl, 475 .d_name = "ctl", 476}; 477 478 479MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 480 481static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 482 483static moduledata_t ctl_moduledata = { 484 "ctl", 485 ctl_module_event_handler, 486 NULL 487}; 488 489DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 490MODULE_VERSION(ctl, 1); 491 492static struct ctl_frontend ha_frontend = 493{ 494 .name = "ha", 495}; 496 497static void 498ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 499 union ctl_ha_msg *msg_info) 500{ 501 struct ctl_scsiio *ctsio; 502 503 if (msg_info->hdr.original_sc == NULL) { 504 printf("%s: original_sc == NULL!\n", __func__); 505 /* XXX KDM now what? */ 506 return; 507 } 508 509 ctsio = &msg_info->hdr.original_sc->scsiio; 510 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 511 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 512 ctsio->io_hdr.status = msg_info->hdr.status; 513 ctsio->scsi_status = msg_info->scsi.scsi_status; 514 ctsio->sense_len = msg_info->scsi.sense_len; 515 ctsio->sense_residual = msg_info->scsi.sense_residual; 516 ctsio->residual = msg_info->scsi.residual; 517 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 518 msg_info->scsi.sense_len); 519 ctl_enqueue_isc((union ctl_io *)ctsio); 520} 521 522static void 523ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 524 union ctl_ha_msg *msg_info) 525{ 526 struct ctl_scsiio *ctsio; 527 528 if (msg_info->hdr.serializing_sc == NULL) { 529 printf("%s: serializing_sc == NULL!\n", __func__); 530 /* XXX KDM now what? */ 531 return; 532 } 533 534 ctsio = &msg_info->hdr.serializing_sc->scsiio; 535 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 536 ctl_enqueue_isc((union ctl_io *)ctsio); 537} 538 539void 540ctl_isc_announce_lun(struct ctl_lun *lun) 541{ 542 struct ctl_softc *softc = lun->ctl_softc; 543 union ctl_ha_msg *msg; 544 struct ctl_ha_msg_lun_pr_key pr_key; 545 int i, k; 546 547 if (softc->ha_link != CTL_HA_LINK_ONLINE) 548 return; 549 mtx_lock(&lun->lun_lock); 550 i = sizeof(msg->lun); 551 if (lun->lun_devid) 552 i += lun->lun_devid->len; 553 i += sizeof(pr_key) * lun->pr_key_count; 554alloc: 555 mtx_unlock(&lun->lun_lock); 556 msg = malloc(i, M_CTL, M_WAITOK); 557 mtx_lock(&lun->lun_lock); 558 k = sizeof(msg->lun); 559 if (lun->lun_devid) 560 k += lun->lun_devid->len; 561 k += sizeof(pr_key) * lun->pr_key_count; 562 if (i < k) { 563 free(msg, M_CTL); 564 i = k; 565 goto alloc; 566 } 567 bzero(&msg->lun, sizeof(msg->lun)); 568 msg->hdr.msg_type = CTL_MSG_LUN_SYNC; 569 msg->hdr.nexus.targ_lun = lun->lun; 570 msg->hdr.nexus.targ_mapped_lun = lun->lun; 571 msg->lun.flags = lun->flags; 572 msg->lun.pr_generation = lun->PRGeneration; 573 msg->lun.pr_res_idx = lun->pr_res_idx; 574 msg->lun.pr_res_type = lun->res_type; 575 msg->lun.pr_key_count = lun->pr_key_count; 576 i = 0; 577 if (lun->lun_devid) { 578 msg->lun.lun_devid_len = lun->lun_devid->len; 579 memcpy(&msg->lun.data[i], lun->lun_devid->data, 580 msg->lun.lun_devid_len); 581 i += msg->lun.lun_devid_len; 582 } 583 for (k = 0; k < CTL_MAX_INITIATORS; k++) { 584 if ((pr_key.pr_key = ctl_get_prkey(lun, k)) == 0) 585 continue; 586 pr_key.pr_iid = k; 587 memcpy(&msg->lun.data[i], &pr_key, sizeof(pr_key)); 588 i += sizeof(pr_key); 589 } 590 mtx_unlock(&lun->lun_lock); 591 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->port, sizeof(msg->port) + i, 592 M_WAITOK); 593 free(msg, M_CTL); 594} 595 596void 597ctl_isc_announce_port(struct ctl_port *port) 598{ 599 struct ctl_softc *softc = control_softc; 600 union ctl_ha_msg *msg; 601 int i; 602 603 if (port->targ_port < softc->port_min || 604 port->targ_port >= softc->port_max || 605 softc->ha_link != CTL_HA_LINK_ONLINE) 606 return; 607 i = sizeof(msg->port) + strlen(port->port_name) + 1; 608 if (port->lun_map) 609 i += sizeof(uint32_t) * CTL_MAX_LUNS; 610 if (port->port_devid) 611 i += port->port_devid->len; 612 if (port->target_devid) 613 i += port->target_devid->len; 614 msg = malloc(i, M_CTL, M_WAITOK); 615 bzero(&msg->port, sizeof(msg->port)); 616 msg->hdr.msg_type = CTL_MSG_PORT_SYNC; 617 msg->hdr.nexus.targ_port = port->targ_port; 618 msg->port.port_type = port->port_type; 619 msg->port.physical_port = port->physical_port; 620 msg->port.virtual_port = port->virtual_port; 621 msg->port.status = port->status; 622 i = 0; 623 msg->port.name_len = sprintf(&msg->port.data[i], 624 "%d:%s", softc->ha_id, port->port_name) + 1; 625 i += msg->port.name_len; 626 if (port->lun_map) { 627 msg->port.lun_map_len = sizeof(uint32_t) * CTL_MAX_LUNS; 628 memcpy(&msg->port.data[i], port->lun_map, 629 msg->port.lun_map_len); 630 i += msg->port.lun_map_len; 631 } 632 if (port->port_devid) { 633 msg->port.port_devid_len = port->port_devid->len; 634 memcpy(&msg->port.data[i], port->port_devid->data, 635 msg->port.port_devid_len); 636 i += msg->port.port_devid_len; 637 } 638 if (port->target_devid) { 639 msg->port.target_devid_len = port->target_devid->len; 640 memcpy(&msg->port.data[i], port->target_devid->data, 641 msg->port.target_devid_len); 642 i += msg->port.target_devid_len; 643 } 644 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->port, sizeof(msg->port) + i, 645 M_WAITOK); 646 free(msg, M_CTL); 647} 648 649static void 650ctl_isc_ha_link_up(struct ctl_softc *softc) 651{ 652 struct ctl_port *port; 653 struct ctl_lun *lun; 654 655 STAILQ_FOREACH(port, &softc->port_list, links) 656 ctl_isc_announce_port(port); 657 STAILQ_FOREACH(lun, &softc->lun_list, links) 658 ctl_isc_announce_lun(lun); 659} 660 661static void 662ctl_isc_ha_link_down(struct ctl_softc *softc) 663{ 664 struct ctl_port *port; 665 struct ctl_lun *lun; 666 union ctl_io *io; 667 668 mtx_lock(&softc->ctl_lock); 669 STAILQ_FOREACH(lun, &softc->lun_list, links) { 670 mtx_lock(&lun->lun_lock); 671 if (lun->flags & CTL_LUN_PEER_SC_PRIMARY) { 672 lun->flags &= ~CTL_LUN_PEER_SC_PRIMARY; 673 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 674 } 675 mtx_unlock(&lun->lun_lock); 676 677 mtx_unlock(&softc->ctl_lock); 678 io = ctl_alloc_io(softc->othersc_pool); 679 mtx_lock(&softc->ctl_lock); 680 ctl_zero_io(io); 681 io->io_hdr.msg_type = CTL_MSG_FAILOVER; 682 io->io_hdr.nexus.targ_mapped_lun = lun->lun; 683 ctl_enqueue_isc(io); 684 } 685 686 STAILQ_FOREACH(port, &softc->port_list, links) { 687 if (port->targ_port >= softc->port_min && 688 port->targ_port < softc->port_max) 689 continue; 690 port->status &= ~CTL_PORT_STATUS_ONLINE; 691 } 692 mtx_unlock(&softc->ctl_lock); 693} 694 695static void 696ctl_isc_ua(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 697{ 698 struct ctl_lun *lun; 699 uint32_t iid = ctl_get_initindex(&msg->hdr.nexus); 700 701 mtx_lock(&softc->ctl_lock); 702 if (msg->hdr.nexus.targ_lun < CTL_MAX_LUNS && 703 (lun = softc->ctl_luns[msg->hdr.nexus.targ_mapped_lun]) != NULL) { 704 mtx_lock(&lun->lun_lock); 705 mtx_unlock(&softc->ctl_lock); 706 if (msg->ua.ua_all) { 707 if (msg->ua.ua_set) 708 ctl_est_ua_all(lun, iid, msg->ua.ua_type); 709 else 710 ctl_clr_ua_all(lun, iid, msg->ua.ua_type); 711 } else { 712 if (msg->ua.ua_set) 713 ctl_est_ua(lun, iid, msg->ua.ua_type); 714 else 715 ctl_clr_ua(lun, iid, msg->ua.ua_type); 716 } 717 mtx_unlock(&lun->lun_lock); 718 } else 719 mtx_unlock(&softc->ctl_lock); 720} 721 722static void 723ctl_isc_lun_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 724{ 725 struct ctl_lun *lun; 726 struct ctl_ha_msg_lun_pr_key pr_key; 727 int i, k; 728 ctl_lun_flags oflags; 729 uint32_t targ_lun; 730 731 targ_lun = msg->hdr.nexus.targ_mapped_lun; 732 mtx_lock(&softc->ctl_lock); 733 if ((targ_lun >= CTL_MAX_LUNS) || 734 ((lun = softc->ctl_luns[targ_lun]) == NULL)) { 735 mtx_unlock(&softc->ctl_lock); 736 return; 737 } 738 mtx_lock(&lun->lun_lock); 739 mtx_unlock(&softc->ctl_lock); 740 if (lun->flags & CTL_LUN_DISABLED) { 741 mtx_unlock(&lun->lun_lock); 742 return; 743 } 744 i = (lun->lun_devid != NULL) ? lun->lun_devid->len : 0; 745 if (msg->lun.lun_devid_len != i || (i > 0 && 746 memcmp(&msg->lun.data[0], lun->lun_devid->data, i) != 0)) { 747 mtx_unlock(&lun->lun_lock); 748 printf("%s: Received conflicting HA LUN %d\n", 749 __func__, msg->hdr.nexus.targ_lun); 750 return; 751 } else { 752 /* Record whether peer is primary. */ 753 oflags = lun->flags; 754 if ((msg->lun.flags & CTL_LUN_PRIMARY_SC) && 755 (msg->lun.flags & CTL_LUN_DISABLED) == 0) 756 lun->flags |= CTL_LUN_PEER_SC_PRIMARY; 757 else 758 lun->flags &= ~CTL_LUN_PEER_SC_PRIMARY; 759 if (oflags != lun->flags) 760 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 761 762 /* If peer is primary and we are not -- use data */ 763 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 764 (lun->flags & CTL_LUN_PEER_SC_PRIMARY)) { 765 lun->PRGeneration = msg->lun.pr_generation; 766 lun->pr_res_idx = msg->lun.pr_res_idx; 767 lun->res_type = msg->lun.pr_res_type; 768 lun->pr_key_count = msg->lun.pr_key_count; 769 for (k = 0; k < CTL_MAX_INITIATORS; k++) 770 ctl_clr_prkey(lun, k); 771 for (k = 0; k < msg->lun.pr_key_count; k++) { 772 memcpy(&pr_key, &msg->lun.data[i], 773 sizeof(pr_key)); 774 ctl_alloc_prkey(lun, pr_key.pr_iid); 775 ctl_set_prkey(lun, pr_key.pr_iid, 776 pr_key.pr_key); 777 i += sizeof(pr_key); 778 } 779 } 780 781 mtx_unlock(&lun->lun_lock); 782 CTL_DEBUG_PRINT(("%s: Known LUN %d, peer is %s\n", 783 __func__, msg->hdr.nexus.targ_lun, 784 (msg->lun.flags & CTL_LUN_PRIMARY_SC) ? 785 "primary" : "secondary")); 786 787 /* If we are primary but peer doesn't know -- notify */ 788 if ((lun->flags & CTL_LUN_PRIMARY_SC) && 789 (msg->lun.flags & CTL_LUN_PEER_SC_PRIMARY) == 0) 790 ctl_isc_announce_lun(lun); 791 } 792} 793 794static void 795ctl_isc_port_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 796{ 797 struct ctl_port *port; 798 struct ctl_lun *lun; 799 int i, new; 800 801 port = softc->ctl_ports[msg->hdr.nexus.targ_port]; 802 if (port == NULL) { 803 CTL_DEBUG_PRINT(("%s: New port %d\n", __func__, 804 msg->hdr.nexus.targ_port)); 805 new = 1; 806 port = malloc(sizeof(*port), M_CTL, M_WAITOK | M_ZERO); 807 port->frontend = &ha_frontend; 808 port->targ_port = msg->hdr.nexus.targ_port; 809 } else if (port->frontend == &ha_frontend) { 810 CTL_DEBUG_PRINT(("%s: Updated port %d\n", __func__, 811 msg->hdr.nexus.targ_port)); 812 new = 0; 813 } else { 814 printf("%s: Received conflicting HA port %d\n", 815 __func__, msg->hdr.nexus.targ_port); 816 return; 817 } 818 port->port_type = msg->port.port_type; 819 port->physical_port = msg->port.physical_port; 820 port->virtual_port = msg->port.virtual_port; 821 port->status = msg->port.status; 822 i = 0; 823 free(port->port_name, M_CTL); 824 port->port_name = strndup(&msg->port.data[i], msg->port.name_len, 825 M_CTL); 826 i += msg->port.name_len; 827 if (msg->port.lun_map_len != 0) { 828 if (port->lun_map == NULL) 829 port->lun_map = malloc(sizeof(uint32_t) * CTL_MAX_LUNS, 830 M_CTL, M_WAITOK); 831 memcpy(port->lun_map, &msg->port.data[i], 832 sizeof(uint32_t) * CTL_MAX_LUNS); 833 i += msg->port.lun_map_len; 834 } else { 835 free(port->lun_map, M_CTL); 836 port->lun_map = NULL; 837 } 838 if (msg->port.port_devid_len != 0) { 839 if (port->port_devid == NULL || 840 port->port_devid->len != msg->port.port_devid_len) { 841 free(port->port_devid, M_CTL); 842 port->port_devid = malloc(sizeof(struct ctl_devid) + 843 msg->port.port_devid_len, M_CTL, M_WAITOK); 844 } 845 memcpy(port->port_devid->data, &msg->port.data[i], 846 msg->port.port_devid_len); 847 port->port_devid->len = msg->port.port_devid_len; 848 i += msg->port.port_devid_len; 849 } else { 850 free(port->port_devid, M_CTL); 851 port->port_devid = NULL; 852 } 853 if (msg->port.target_devid_len != 0) { 854 if (port->target_devid == NULL || 855 port->target_devid->len != msg->port.target_devid_len) { 856 free(port->target_devid, M_CTL); 857 port->target_devid = malloc(sizeof(struct ctl_devid) + 858 msg->port.target_devid_len, M_CTL, M_WAITOK); 859 } 860 memcpy(port->target_devid->data, &msg->port.data[i], 861 msg->port.target_devid_len); 862 port->target_devid->len = msg->port.target_devid_len; 863 i += msg->port.target_devid_len; 864 } else { 865 free(port->port_devid, M_CTL); 866 port->port_devid = NULL; 867 } 868 if (new) { 869 if (ctl_port_register(port) != 0) { 870 printf("%s: ctl_port_register() failed with error\n", 871 __func__); 872 } 873 } 874 mtx_lock(&softc->ctl_lock); 875 STAILQ_FOREACH(lun, &softc->lun_list, links) { 876 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 877 continue; 878 mtx_lock(&lun->lun_lock); 879 ctl_est_ua_all(lun, -1, CTL_UA_INQ_CHANGE); 880 mtx_unlock(&lun->lun_lock); 881 } 882 mtx_unlock(&softc->ctl_lock); 883} 884 885/* 886 * ISC (Inter Shelf Communication) event handler. Events from the HA 887 * subsystem come in here. 888 */ 889static void 890ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 891{ 892 struct ctl_softc *softc; 893 union ctl_io *io; 894 struct ctl_prio *presio; 895 ctl_ha_status isc_status; 896 897 softc = control_softc; 898 CTL_DEBUG_PRINT(("CTL: Isc Msg event %d\n", event)); 899 if (event == CTL_HA_EVT_MSG_RECV) { 900 union ctl_ha_msg *msg, msgbuf; 901 902 if (param > sizeof(msgbuf)) 903 msg = malloc(param, M_CTL, M_WAITOK); 904 else 905 msg = &msgbuf; 906 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, msg, param, 907 M_WAITOK); 908 if (isc_status != CTL_HA_STATUS_SUCCESS) { 909 printf("%s: Error receiving message: %d\n", 910 __func__, isc_status); 911 if (msg != &msgbuf) 912 free(msg, M_CTL); 913 return; 914 } 915 916 CTL_DEBUG_PRINT(("CTL: msg_type %d\n", msg->msg_type)); 917 switch (msg->hdr.msg_type) { 918 case CTL_MSG_SERIALIZE: 919 io = ctl_alloc_io(softc->othersc_pool); 920 ctl_zero_io(io); 921 // populate ctsio from msg 922 io->io_hdr.io_type = CTL_IO_SCSI; 923 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 924 io->io_hdr.original_sc = msg->hdr.original_sc; 925 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 926 CTL_FLAG_IO_ACTIVE; 927 /* 928 * If we're in serialization-only mode, we don't 929 * want to go through full done processing. Thus 930 * the COPY flag. 931 * 932 * XXX KDM add another flag that is more specific. 933 */ 934 if (softc->ha_mode != CTL_HA_MODE_XFER) 935 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 936 io->io_hdr.nexus = msg->hdr.nexus; 937#if 0 938 printf("port %u, iid %u, lun %u\n", 939 io->io_hdr.nexus.targ_port, 940 io->io_hdr.nexus.initid, 941 io->io_hdr.nexus.targ_lun); 942#endif 943 io->scsiio.tag_num = msg->scsi.tag_num; 944 io->scsiio.tag_type = msg->scsi.tag_type; 945#ifdef CTL_TIME_IO 946 io->io_hdr.start_time = time_uptime; 947 getbintime(&io->io_hdr.start_bt); 948#endif /* CTL_TIME_IO */ 949 io->scsiio.cdb_len = msg->scsi.cdb_len; 950 memcpy(io->scsiio.cdb, msg->scsi.cdb, 951 CTL_MAX_CDBLEN); 952 if (softc->ha_mode == CTL_HA_MODE_XFER) { 953 const struct ctl_cmd_entry *entry; 954 955 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 956 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 957 io->io_hdr.flags |= 958 entry->flags & CTL_FLAG_DATA_MASK; 959 } 960 ctl_enqueue_isc(io); 961 break; 962 963 /* Performed on the Originating SC, XFER mode only */ 964 case CTL_MSG_DATAMOVE: { 965 struct ctl_sg_entry *sgl; 966 int i, j; 967 968 io = msg->hdr.original_sc; 969 if (io == NULL) { 970 printf("%s: original_sc == NULL!\n", __func__); 971 /* XXX KDM do something here */ 972 break; 973 } 974 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 975 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 976 /* 977 * Keep track of this, we need to send it back over 978 * when the datamove is complete. 979 */ 980 io->io_hdr.serializing_sc = msg->hdr.serializing_sc; 981 982 if (msg->dt.sg_sequence == 0) { 983 i = msg->dt.kern_sg_entries + 984 io->scsiio.kern_data_len / 985 CTL_HA_DATAMOVE_SEGMENT + 1; 986 sgl = malloc(sizeof(*sgl) * i, M_CTL, 987 M_WAITOK | M_ZERO); 988 io->io_hdr.remote_sglist = sgl; 989 io->io_hdr.local_sglist = 990 &sgl[msg->dt.kern_sg_entries]; 991 992 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 993 994 io->scsiio.kern_sg_entries = 995 msg->dt.kern_sg_entries; 996 io->scsiio.rem_sg_entries = 997 msg->dt.kern_sg_entries; 998 io->scsiio.kern_data_len = 999 msg->dt.kern_data_len; 1000 io->scsiio.kern_total_len = 1001 msg->dt.kern_total_len; 1002 io->scsiio.kern_data_resid = 1003 msg->dt.kern_data_resid; 1004 io->scsiio.kern_rel_offset = 1005 msg->dt.kern_rel_offset; 1006 io->io_hdr.flags &= ~CTL_FLAG_BUS_ADDR; 1007 io->io_hdr.flags |= msg->dt.flags & 1008 CTL_FLAG_BUS_ADDR; 1009 } else 1010 sgl = (struct ctl_sg_entry *) 1011 io->scsiio.kern_data_ptr; 1012 1013 for (i = msg->dt.sent_sg_entries, j = 0; 1014 i < (msg->dt.sent_sg_entries + 1015 msg->dt.cur_sg_entries); i++, j++) { 1016 sgl[i].addr = msg->dt.sg_list[j].addr; 1017 sgl[i].len = msg->dt.sg_list[j].len; 1018 1019#if 0 1020 printf("%s: L: %p,%d -> %p,%d j=%d, i=%d\n", 1021 __func__, 1022 msg->dt.sg_list[j].addr, 1023 msg->dt.sg_list[j].len, 1024 sgl[i].addr, sgl[i].len, j, i); 1025#endif 1026 } 1027 1028 /* 1029 * If this is the last piece of the I/O, we've got 1030 * the full S/G list. Queue processing in the thread. 1031 * Otherwise wait for the next piece. 1032 */ 1033 if (msg->dt.sg_last != 0) 1034 ctl_enqueue_isc(io); 1035 break; 1036 } 1037 /* Performed on the Serializing (primary) SC, XFER mode only */ 1038 case CTL_MSG_DATAMOVE_DONE: { 1039 if (msg->hdr.serializing_sc == NULL) { 1040 printf("%s: serializing_sc == NULL!\n", 1041 __func__); 1042 /* XXX KDM now what? */ 1043 break; 1044 } 1045 /* 1046 * We grab the sense information here in case 1047 * there was a failure, so we can return status 1048 * back to the initiator. 1049 */ 1050 io = msg->hdr.serializing_sc; 1051 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 1052 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1053 io->io_hdr.port_status = msg->scsi.fetd_status; 1054 io->scsiio.residual = msg->scsi.residual; 1055 if (msg->hdr.status != CTL_STATUS_NONE) { 1056 io->io_hdr.status = msg->hdr.status; 1057 io->scsiio.scsi_status = msg->scsi.scsi_status; 1058 io->scsiio.sense_len = msg->scsi.sense_len; 1059 io->scsiio.sense_residual =msg->scsi.sense_residual; 1060 memcpy(&io->scsiio.sense_data, 1061 &msg->scsi.sense_data, 1062 msg->scsi.sense_len); 1063 } 1064 ctl_enqueue_isc(io); 1065 break; 1066 } 1067 1068 /* Preformed on Originating SC, SER_ONLY mode */ 1069 case CTL_MSG_R2R: 1070 io = msg->hdr.original_sc; 1071 if (io == NULL) { 1072 printf("%s: original_sc == NULL!\n", 1073 __func__); 1074 break; 1075 } 1076 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1077 io->io_hdr.msg_type = CTL_MSG_R2R; 1078 io->io_hdr.serializing_sc = msg->hdr.serializing_sc; 1079 ctl_enqueue_isc(io); 1080 break; 1081 1082 /* 1083 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 1084 * mode. 1085 * Performed on the Originating (i.e. secondary) SC in XFER 1086 * mode 1087 */ 1088 case CTL_MSG_FINISH_IO: 1089 if (softc->ha_mode == CTL_HA_MODE_XFER) 1090 ctl_isc_handler_finish_xfer(softc, msg); 1091 else 1092 ctl_isc_handler_finish_ser_only(softc, msg); 1093 break; 1094 1095 /* Preformed on Originating SC */ 1096 case CTL_MSG_BAD_JUJU: 1097 io = msg->hdr.original_sc; 1098 if (io == NULL) { 1099 printf("%s: Bad JUJU!, original_sc is NULL!\n", 1100 __func__); 1101 break; 1102 } 1103 ctl_copy_sense_data(msg, io); 1104 /* 1105 * IO should have already been cleaned up on other 1106 * SC so clear this flag so we won't send a message 1107 * back to finish the IO there. 1108 */ 1109 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 1110 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1111 1112 /* io = msg->hdr.serializing_sc; */ 1113 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 1114 ctl_enqueue_isc(io); 1115 break; 1116 1117 /* Handle resets sent from the other side */ 1118 case CTL_MSG_MANAGE_TASKS: { 1119 struct ctl_taskio *taskio; 1120 taskio = (struct ctl_taskio *)ctl_alloc_io( 1121 softc->othersc_pool); 1122 ctl_zero_io((union ctl_io *)taskio); 1123 taskio->io_hdr.io_type = CTL_IO_TASK; 1124 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 1125 taskio->io_hdr.nexus = msg->hdr.nexus; 1126 taskio->task_action = msg->task.task_action; 1127 taskio->tag_num = msg->task.tag_num; 1128 taskio->tag_type = msg->task.tag_type; 1129#ifdef CTL_TIME_IO 1130 taskio->io_hdr.start_time = time_uptime; 1131 getbintime(&taskio->io_hdr.start_bt); 1132#endif /* CTL_TIME_IO */ 1133 ctl_run_task((union ctl_io *)taskio); 1134 break; 1135 } 1136 /* Persistent Reserve action which needs attention */ 1137 case CTL_MSG_PERS_ACTION: 1138 presio = (struct ctl_prio *)ctl_alloc_io( 1139 softc->othersc_pool); 1140 ctl_zero_io((union ctl_io *)presio); 1141 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 1142 presio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 1143 presio->io_hdr.nexus = msg->hdr.nexus; 1144 presio->pr_msg = msg->pr; 1145 ctl_enqueue_isc((union ctl_io *)presio); 1146 break; 1147 case CTL_MSG_UA: 1148 ctl_isc_ua(softc, msg, param); 1149 break; 1150 case CTL_MSG_PORT_SYNC: 1151 ctl_isc_port_sync(softc, msg, param); 1152 break; 1153 case CTL_MSG_LUN_SYNC: 1154 ctl_isc_lun_sync(softc, msg, param); 1155 break; 1156 default: 1157 printf("Received HA message of unknown type %d\n", 1158 msg->hdr.msg_type); 1159 break; 1160 } 1161 if (msg != &msgbuf) 1162 free(msg, M_CTL); 1163 } else if (event == CTL_HA_EVT_LINK_CHANGE) { 1164 printf("CTL: HA link status changed from %d to %d\n", 1165 softc->ha_link, param); 1166 if (param == softc->ha_link) 1167 return; 1168 if (softc->ha_link == CTL_HA_LINK_ONLINE) { 1169 softc->ha_link = param; 1170 ctl_isc_ha_link_down(softc); 1171 } else { 1172 softc->ha_link = param; 1173 if (softc->ha_link == CTL_HA_LINK_ONLINE) 1174 ctl_isc_ha_link_up(softc); 1175 } 1176 return; 1177 } else { 1178 printf("ctl_isc_event_handler: Unknown event %d\n", event); 1179 return; 1180 } 1181} 1182 1183static void 1184ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 1185{ 1186 1187 memcpy(&dest->scsiio.sense_data, &src->scsi.sense_data, 1188 src->scsi.sense_len); 1189 dest->scsiio.scsi_status = src->scsi.scsi_status; 1190 dest->scsiio.sense_len = src->scsi.sense_len; 1191 dest->io_hdr.status = src->hdr.status; 1192} 1193 1194static void 1195ctl_copy_sense_data_back(union ctl_io *src, union ctl_ha_msg *dest) 1196{ 1197 1198 memcpy(&dest->scsi.sense_data, &src->scsiio.sense_data, 1199 src->scsiio.sense_len); 1200 dest->scsi.scsi_status = src->scsiio.scsi_status; 1201 dest->scsi.sense_len = src->scsiio.sense_len; 1202 dest->hdr.status = src->io_hdr.status; 1203} 1204 1205void 1206ctl_est_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 1207{ 1208 struct ctl_softc *softc = lun->ctl_softc; 1209 ctl_ua_type *pu; 1210 1211 if (initidx < softc->init_min || initidx >= softc->init_max) 1212 return; 1213 mtx_assert(&lun->lun_lock, MA_OWNED); 1214 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1215 if (pu == NULL) 1216 return; 1217 pu[initidx % CTL_MAX_INIT_PER_PORT] |= ua; 1218} 1219 1220void 1221ctl_est_ua_port(struct ctl_lun *lun, int port, uint32_t except, ctl_ua_type ua) 1222{ 1223 int i; 1224 1225 mtx_assert(&lun->lun_lock, MA_OWNED); 1226 if (lun->pending_ua[port] == NULL) 1227 return; 1228 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1229 if (port * CTL_MAX_INIT_PER_PORT + i == except) 1230 continue; 1231 lun->pending_ua[port][i] |= ua; 1232 } 1233} 1234 1235void 1236ctl_est_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1237{ 1238 struct ctl_softc *softc = lun->ctl_softc; 1239 int i; 1240 1241 mtx_assert(&lun->lun_lock, MA_OWNED); 1242 for (i = softc->port_min; i < softc->port_max; i++) 1243 ctl_est_ua_port(lun, i, except, ua); 1244} 1245 1246void 1247ctl_clr_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 1248{ 1249 struct ctl_softc *softc = lun->ctl_softc; 1250 ctl_ua_type *pu; 1251 1252 if (initidx < softc->init_min || initidx >= softc->init_max) 1253 return; 1254 mtx_assert(&lun->lun_lock, MA_OWNED); 1255 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1256 if (pu == NULL) 1257 return; 1258 pu[initidx % CTL_MAX_INIT_PER_PORT] &= ~ua; 1259} 1260 1261void 1262ctl_clr_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1263{ 1264 struct ctl_softc *softc = lun->ctl_softc; 1265 int i, j; 1266 1267 mtx_assert(&lun->lun_lock, MA_OWNED); 1268 for (i = softc->port_min; i < softc->port_max; i++) { 1269 if (lun->pending_ua[i] == NULL) 1270 continue; 1271 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 1272 if (i * CTL_MAX_INIT_PER_PORT + j == except) 1273 continue; 1274 lun->pending_ua[i][j] &= ~ua; 1275 } 1276 } 1277} 1278 1279void 1280ctl_clr_ua_allluns(struct ctl_softc *ctl_softc, uint32_t initidx, 1281 ctl_ua_type ua_type) 1282{ 1283 struct ctl_lun *lun; 1284 1285 mtx_assert(&ctl_softc->ctl_lock, MA_OWNED); 1286 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) { 1287 mtx_lock(&lun->lun_lock); 1288 ctl_clr_ua(lun, initidx, ua_type); 1289 mtx_unlock(&lun->lun_lock); 1290 } 1291} 1292 1293static int 1294ctl_ha_role_sysctl(SYSCTL_HANDLER_ARGS) 1295{ 1296 struct ctl_softc *softc = (struct ctl_softc *)arg1; 1297 struct ctl_lun *lun; 1298 struct ctl_lun_req ireq; 1299 int error, value; 1300 1301 value = (softc->flags & CTL_FLAG_ACTIVE_SHELF) ? 0 : 1; 1302 error = sysctl_handle_int(oidp, &value, 0, req); 1303 if ((error != 0) || (req->newptr == NULL)) 1304 return (error); 1305 1306 mtx_lock(&softc->ctl_lock); 1307 if (value == 0) 1308 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1309 else 1310 softc->flags &= ~CTL_FLAG_ACTIVE_SHELF; 1311 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1312 mtx_unlock(&softc->ctl_lock); 1313 bzero(&ireq, sizeof(ireq)); 1314 ireq.reqtype = CTL_LUNREQ_MODIFY; 1315 ireq.reqdata.modify.lun_id = lun->lun; 1316 lun->backend->ioctl(NULL, CTL_LUN_REQ, (caddr_t)&ireq, 0, 1317 curthread); 1318 if (ireq.status != CTL_LUN_OK) { 1319 printf("%s: CTL_LUNREQ_MODIFY returned %d '%s'\n", 1320 __func__, ireq.status, ireq.error_str); 1321 } 1322 mtx_lock(&softc->ctl_lock); 1323 } 1324 mtx_unlock(&softc->ctl_lock); 1325 return (0); 1326} 1327 1328static int 1329ctl_init(void) 1330{ 1331 struct ctl_softc *softc; 1332 void *other_pool; 1333 int i, error, retval; 1334 1335 retval = 0; 1336 control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 1337 M_WAITOK | M_ZERO); 1338 softc = control_softc; 1339 1340 softc->dev = make_dev(&ctl_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, 1341 "cam/ctl"); 1342 1343 softc->dev->si_drv1 = softc; 1344 1345 sysctl_ctx_init(&softc->sysctl_ctx); 1346 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1347 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 1348 CTLFLAG_RD, 0, "CAM Target Layer"); 1349 1350 if (softc->sysctl_tree == NULL) { 1351 printf("%s: unable to allocate sysctl tree\n", __func__); 1352 destroy_dev(softc->dev); 1353 free(control_softc, M_DEVBUF); 1354 control_softc = NULL; 1355 return (ENOMEM); 1356 } 1357 1358 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 1359 softc->io_zone = uma_zcreate("CTL IO", sizeof(union ctl_io), 1360 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); 1361 softc->open_count = 0; 1362 1363 /* 1364 * Default to actually sending a SYNCHRONIZE CACHE command down to 1365 * the drive. 1366 */ 1367 softc->flags = CTL_FLAG_REAL_SYNC; 1368 1369 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1370 OID_AUTO, "ha_mode", CTLFLAG_RDTUN, (int *)&softc->ha_mode, 0, 1371 "HA mode (0 - act/stby, 1 - serialize only, 2 - xfer)"); 1372 1373 /* 1374 * In Copan's HA scheme, the "master" and "slave" roles are 1375 * figured out through the slot the controller is in. Although it 1376 * is an active/active system, someone has to be in charge. 1377 */ 1378 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1379 OID_AUTO, "ha_id", CTLFLAG_RDTUN, &softc->ha_id, 0, 1380 "HA head ID (0 - no HA)"); 1381 if (softc->ha_id == 0 || softc->ha_id > NUM_TARGET_PORT_GROUPS) { 1382 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1383 softc->is_single = 1; 1384 softc->port_cnt = CTL_MAX_PORTS; 1385 softc->port_min = 0; 1386 } else { 1387 softc->port_cnt = CTL_MAX_PORTS / NUM_TARGET_PORT_GROUPS; 1388 softc->port_min = (softc->ha_id - 1) * softc->port_cnt; 1389 } 1390 softc->port_max = softc->port_min + softc->port_cnt; 1391 softc->init_min = softc->port_min * CTL_MAX_INIT_PER_PORT; 1392 softc->init_max = softc->port_max * CTL_MAX_INIT_PER_PORT; 1393 1394 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1395 OID_AUTO, "ha_link", CTLFLAG_RD, (int *)&softc->ha_link, 0, 1396 "HA link state (0 - offline, 1 - unknown, 2 - online)"); 1397 1398 STAILQ_INIT(&softc->lun_list); 1399 STAILQ_INIT(&softc->pending_lun_queue); 1400 STAILQ_INIT(&softc->fe_list); 1401 STAILQ_INIT(&softc->port_list); 1402 STAILQ_INIT(&softc->be_list); 1403 ctl_tpc_init(softc); 1404 1405 if (ctl_pool_create(softc, "othersc", CTL_POOL_ENTRIES_OTHER_SC, 1406 &other_pool) != 0) 1407 { 1408 printf("ctl: can't allocate %d entry other SC pool, " 1409 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1410 return (ENOMEM); 1411 } 1412 softc->othersc_pool = other_pool; 1413 1414 if (worker_threads <= 0) 1415 worker_threads = max(1, mp_ncpus / 4); 1416 if (worker_threads > CTL_MAX_THREADS) 1417 worker_threads = CTL_MAX_THREADS; 1418 1419 for (i = 0; i < worker_threads; i++) { 1420 struct ctl_thread *thr = &softc->threads[i]; 1421 1422 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1423 thr->ctl_softc = softc; 1424 STAILQ_INIT(&thr->incoming_queue); 1425 STAILQ_INIT(&thr->rtr_queue); 1426 STAILQ_INIT(&thr->done_queue); 1427 STAILQ_INIT(&thr->isc_queue); 1428 1429 error = kproc_kthread_add(ctl_work_thread, thr, 1430 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1431 if (error != 0) { 1432 printf("error creating CTL work thread!\n"); 1433 ctl_pool_free(other_pool); 1434 return (error); 1435 } 1436 } 1437 error = kproc_kthread_add(ctl_lun_thread, softc, 1438 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1439 if (error != 0) { 1440 printf("error creating CTL lun thread!\n"); 1441 ctl_pool_free(other_pool); 1442 return (error); 1443 } 1444 error = kproc_kthread_add(ctl_thresh_thread, softc, 1445 &softc->ctl_proc, NULL, 0, 0, "ctl", "thresh"); 1446 if (error != 0) { 1447 printf("error creating CTL threshold thread!\n"); 1448 ctl_pool_free(other_pool); 1449 return (error); 1450 } 1451 1452 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1453 OID_AUTO, "ha_role", CTLTYPE_INT | CTLFLAG_RWTUN, 1454 softc, 0, ctl_ha_role_sysctl, "I", "HA role for this head"); 1455 1456 if (softc->is_single == 0) { 1457 ctl_frontend_register(&ha_frontend); 1458 if (ctl_ha_msg_init(softc) != CTL_HA_STATUS_SUCCESS) { 1459 printf("ctl_init: ctl_ha_msg_init failed.\n"); 1460 softc->is_single = 1; 1461 } else 1462 if (ctl_ha_msg_register(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 1463 != CTL_HA_STATUS_SUCCESS) { 1464 printf("ctl_init: ctl_ha_msg_register failed.\n"); 1465 softc->is_single = 1; 1466 } 1467 } 1468 return (0); 1469} 1470 1471void 1472ctl_shutdown(void) 1473{ 1474 struct ctl_softc *softc; 1475 struct ctl_lun *lun, *next_lun; 1476 1477 softc = (struct ctl_softc *)control_softc; 1478 1479 if (softc->is_single == 0) { 1480 if (ctl_ha_msg_deregister(CTL_HA_CHAN_CTL) 1481 != CTL_HA_STATUS_SUCCESS) { 1482 printf("ctl_shutdown: ctl_ha_msg_deregister failed.\n"); 1483 } 1484 if (ctl_ha_msg_shutdown(softc) != CTL_HA_STATUS_SUCCESS) { 1485 printf("ctl_shutdown: ctl_ha_msg_shutdown failed.\n"); 1486 } 1487 ctl_frontend_deregister(&ha_frontend); 1488 } 1489 1490 mtx_lock(&softc->ctl_lock); 1491 1492 /* 1493 * Free up each LUN. 1494 */ 1495 for (lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; lun = next_lun){ 1496 next_lun = STAILQ_NEXT(lun, links); 1497 ctl_free_lun(lun); 1498 } 1499 1500 mtx_unlock(&softc->ctl_lock); 1501 1502#if 0 1503 ctl_shutdown_thread(softc->work_thread); 1504 mtx_destroy(&softc->queue_lock); 1505#endif 1506 1507 ctl_tpc_shutdown(softc); 1508 uma_zdestroy(softc->io_zone); 1509 mtx_destroy(&softc->ctl_lock); 1510 1511 destroy_dev(softc->dev); 1512 1513 sysctl_ctx_free(&softc->sysctl_ctx); 1514 1515 free(control_softc, M_DEVBUF); 1516 control_softc = NULL; 1517} 1518 1519static int 1520ctl_module_event_handler(module_t mod, int what, void *arg) 1521{ 1522 1523 switch (what) { 1524 case MOD_LOAD: 1525 return (ctl_init()); 1526 case MOD_UNLOAD: 1527 return (EBUSY); 1528 default: 1529 return (EOPNOTSUPP); 1530 } 1531} 1532 1533/* 1534 * XXX KDM should we do some access checks here? Bump a reference count to 1535 * prevent a CTL module from being unloaded while someone has it open? 1536 */ 1537static int 1538ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1539{ 1540 return (0); 1541} 1542 1543static int 1544ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1545{ 1546 return (0); 1547} 1548 1549/* 1550 * Remove an initiator by port number and initiator ID. 1551 * Returns 0 for success, -1 for failure. 1552 */ 1553int 1554ctl_remove_initiator(struct ctl_port *port, int iid) 1555{ 1556 struct ctl_softc *softc = control_softc; 1557 1558 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1559 1560 if (iid > CTL_MAX_INIT_PER_PORT) { 1561 printf("%s: initiator ID %u > maximun %u!\n", 1562 __func__, iid, CTL_MAX_INIT_PER_PORT); 1563 return (-1); 1564 } 1565 1566 mtx_lock(&softc->ctl_lock); 1567 port->wwpn_iid[iid].in_use--; 1568 port->wwpn_iid[iid].last_use = time_uptime; 1569 mtx_unlock(&softc->ctl_lock); 1570 1571 return (0); 1572} 1573 1574/* 1575 * Add an initiator to the initiator map. 1576 * Returns iid for success, < 0 for failure. 1577 */ 1578int 1579ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 1580{ 1581 struct ctl_softc *softc = control_softc; 1582 time_t best_time; 1583 int i, best; 1584 1585 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1586 1587 if (iid >= CTL_MAX_INIT_PER_PORT) { 1588 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 1589 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 1590 free(name, M_CTL); 1591 return (-1); 1592 } 1593 1594 mtx_lock(&softc->ctl_lock); 1595 1596 if (iid < 0 && (wwpn != 0 || name != NULL)) { 1597 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1598 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 1599 iid = i; 1600 break; 1601 } 1602 if (name != NULL && port->wwpn_iid[i].name != NULL && 1603 strcmp(name, port->wwpn_iid[i].name) == 0) { 1604 iid = i; 1605 break; 1606 } 1607 } 1608 } 1609 1610 if (iid < 0) { 1611 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1612 if (port->wwpn_iid[i].in_use == 0 && 1613 port->wwpn_iid[i].wwpn == 0 && 1614 port->wwpn_iid[i].name == NULL) { 1615 iid = i; 1616 break; 1617 } 1618 } 1619 } 1620 1621 if (iid < 0) { 1622 best = -1; 1623 best_time = INT32_MAX; 1624 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1625 if (port->wwpn_iid[i].in_use == 0) { 1626 if (port->wwpn_iid[i].last_use < best_time) { 1627 best = i; 1628 best_time = port->wwpn_iid[i].last_use; 1629 } 1630 } 1631 } 1632 iid = best; 1633 } 1634 1635 if (iid < 0) { 1636 mtx_unlock(&softc->ctl_lock); 1637 free(name, M_CTL); 1638 return (-2); 1639 } 1640 1641 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 1642 /* 1643 * This is not an error yet. 1644 */ 1645 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 1646#if 0 1647 printf("%s: port %d iid %u WWPN %#jx arrived" 1648 " again\n", __func__, port->targ_port, 1649 iid, (uintmax_t)wwpn); 1650#endif 1651 goto take; 1652 } 1653 if (name != NULL && port->wwpn_iid[iid].name != NULL && 1654 strcmp(name, port->wwpn_iid[iid].name) == 0) { 1655#if 0 1656 printf("%s: port %d iid %u name '%s' arrived" 1657 " again\n", __func__, port->targ_port, 1658 iid, name); 1659#endif 1660 goto take; 1661 } 1662 1663 /* 1664 * This is an error, but what do we do about it? The 1665 * driver is telling us we have a new WWPN for this 1666 * initiator ID, so we pretty much need to use it. 1667 */ 1668 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 1669 " but WWPN %#jx '%s' is still at that address\n", 1670 __func__, port->targ_port, iid, wwpn, name, 1671 (uintmax_t)port->wwpn_iid[iid].wwpn, 1672 port->wwpn_iid[iid].name); 1673 1674 /* 1675 * XXX KDM clear have_ca and ua_pending on each LUN for 1676 * this initiator. 1677 */ 1678 } 1679take: 1680 free(port->wwpn_iid[iid].name, M_CTL); 1681 port->wwpn_iid[iid].name = name; 1682 port->wwpn_iid[iid].wwpn = wwpn; 1683 port->wwpn_iid[iid].in_use++; 1684 mtx_unlock(&softc->ctl_lock); 1685 1686 return (iid); 1687} 1688 1689static int 1690ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 1691{ 1692 int len; 1693 1694 switch (port->port_type) { 1695 case CTL_PORT_FC: 1696 { 1697 struct scsi_transportid_fcp *id = 1698 (struct scsi_transportid_fcp *)buf; 1699 if (port->wwpn_iid[iid].wwpn == 0) 1700 return (0); 1701 memset(id, 0, sizeof(*id)); 1702 id->format_protocol = SCSI_PROTO_FC; 1703 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 1704 return (sizeof(*id)); 1705 } 1706 case CTL_PORT_ISCSI: 1707 { 1708 struct scsi_transportid_iscsi_port *id = 1709 (struct scsi_transportid_iscsi_port *)buf; 1710 if (port->wwpn_iid[iid].name == NULL) 1711 return (0); 1712 memset(id, 0, 256); 1713 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 1714 SCSI_PROTO_ISCSI; 1715 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 1716 len = roundup2(min(len, 252), 4); 1717 scsi_ulto2b(len, id->additional_length); 1718 return (sizeof(*id) + len); 1719 } 1720 case CTL_PORT_SAS: 1721 { 1722 struct scsi_transportid_sas *id = 1723 (struct scsi_transportid_sas *)buf; 1724 if (port->wwpn_iid[iid].wwpn == 0) 1725 return (0); 1726 memset(id, 0, sizeof(*id)); 1727 id->format_protocol = SCSI_PROTO_SAS; 1728 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 1729 return (sizeof(*id)); 1730 } 1731 default: 1732 { 1733 struct scsi_transportid_spi *id = 1734 (struct scsi_transportid_spi *)buf; 1735 memset(id, 0, sizeof(*id)); 1736 id->format_protocol = SCSI_PROTO_SPI; 1737 scsi_ulto2b(iid, id->scsi_addr); 1738 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 1739 return (sizeof(*id)); 1740 } 1741 } 1742} 1743 1744/* 1745 * Serialize a command that went down the "wrong" side, and so was sent to 1746 * this controller for execution. The logic is a little different than the 1747 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 1748 * sent back to the other side, but in the success case, we execute the 1749 * command on this side (XFER mode) or tell the other side to execute it 1750 * (SER_ONLY mode). 1751 */ 1752static int 1753ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 1754{ 1755 struct ctl_softc *softc; 1756 union ctl_ha_msg msg_info; 1757 struct ctl_lun *lun; 1758 const struct ctl_cmd_entry *entry; 1759 int retval = 0; 1760 uint32_t targ_lun; 1761 1762 softc = control_softc; 1763 1764 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 1765 mtx_lock(&softc->ctl_lock); 1766 if ((targ_lun < CTL_MAX_LUNS) && 1767 ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 1768 mtx_lock(&lun->lun_lock); 1769 mtx_unlock(&softc->ctl_lock); 1770 /* 1771 * If the LUN is invalid, pretend that it doesn't exist. 1772 * It will go away as soon as all pending I/O has been 1773 * completed. 1774 */ 1775 if (lun->flags & CTL_LUN_DISABLED) { 1776 mtx_unlock(&lun->lun_lock); 1777 lun = NULL; 1778 } 1779 } else { 1780 mtx_unlock(&softc->ctl_lock); 1781 lun = NULL; 1782 } 1783 if (lun == NULL) { 1784 /* 1785 * The other node would not send this request to us unless 1786 * received announce that we are primary node for this LUN. 1787 * If this LUN does not exist now, it is probably result of 1788 * a race, so respond to initiator in the most opaque way. 1789 */ 1790 ctl_set_busy(ctsio); 1791 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 1792 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1793 msg_info.hdr.serializing_sc = NULL; 1794 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1795 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1796 sizeof(msg_info.scsi), M_WAITOK); 1797 return(1); 1798 } 1799 1800 entry = ctl_get_cmd_entry(ctsio, NULL); 1801 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 1802 mtx_unlock(&lun->lun_lock); 1803 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 1804 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1805 msg_info.hdr.serializing_sc = NULL; 1806 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1807 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1808 sizeof(msg_info.scsi), M_WAITOK); 1809 return(1); 1810 } 1811 1812 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 1813 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = lun->be_lun; 1814 1815 /* 1816 * Every I/O goes into the OOA queue for a 1817 * particular LUN, and stays there until completion. 1818 */ 1819#ifdef CTL_TIME_IO 1820 if (TAILQ_EMPTY(&lun->ooa_queue)) 1821 lun->idle_time += getsbinuptime() - lun->last_busy; 1822#endif 1823 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1824 1825 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 1826 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 1827 ooa_links))) { 1828 case CTL_ACTION_BLOCK: 1829 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 1830 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 1831 blocked_links); 1832 mtx_unlock(&lun->lun_lock); 1833 break; 1834 case CTL_ACTION_PASS: 1835 case CTL_ACTION_SKIP: 1836 if (softc->ha_mode == CTL_HA_MODE_XFER) { 1837 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 1838 ctl_enqueue_rtr((union ctl_io *)ctsio); 1839 mtx_unlock(&lun->lun_lock); 1840 } else { 1841 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 1842 mtx_unlock(&lun->lun_lock); 1843 1844 /* send msg back to other side */ 1845 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1846 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 1847 msg_info.hdr.msg_type = CTL_MSG_R2R; 1848 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1849 sizeof(msg_info.hdr), M_WAITOK); 1850 } 1851 break; 1852 case CTL_ACTION_OVERLAP: 1853 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1854 mtx_unlock(&lun->lun_lock); 1855 retval = 1; 1856 1857 ctl_set_overlapped_cmd(ctsio); 1858 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 1859 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1860 msg_info.hdr.serializing_sc = NULL; 1861 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1862 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1863 sizeof(msg_info.scsi), M_WAITOK); 1864 break; 1865 case CTL_ACTION_OVERLAP_TAG: 1866 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1867 mtx_unlock(&lun->lun_lock); 1868 retval = 1; 1869 ctl_set_overlapped_tag(ctsio, ctsio->tag_num); 1870 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 1871 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1872 msg_info.hdr.serializing_sc = NULL; 1873 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1874 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1875 sizeof(msg_info.scsi), M_WAITOK); 1876 break; 1877 case CTL_ACTION_ERROR: 1878 default: 1879 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1880 mtx_unlock(&lun->lun_lock); 1881 retval = 1; 1882 1883 ctl_set_internal_failure(ctsio, /*sks_valid*/ 0, 1884 /*retry_count*/ 0); 1885 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 1886 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1887 msg_info.hdr.serializing_sc = NULL; 1888 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1889 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1890 sizeof(msg_info.scsi), M_WAITOK); 1891 break; 1892 } 1893 return (retval); 1894} 1895 1896/* 1897 * Returns 0 for success, errno for failure. 1898 */ 1899static int 1900ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 1901 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 1902{ 1903 union ctl_io *io; 1904 int retval; 1905 1906 retval = 0; 1907 1908 mtx_lock(&lun->lun_lock); 1909 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 1910 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 1911 ooa_links)) { 1912 struct ctl_ooa_entry *entry; 1913 1914 /* 1915 * If we've got more than we can fit, just count the 1916 * remaining entries. 1917 */ 1918 if (*cur_fill_num >= ooa_hdr->alloc_num) 1919 continue; 1920 1921 entry = &kern_entries[*cur_fill_num]; 1922 1923 entry->tag_num = io->scsiio.tag_num; 1924 entry->lun_num = lun->lun; 1925#ifdef CTL_TIME_IO 1926 entry->start_bt = io->io_hdr.start_bt; 1927#endif 1928 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 1929 entry->cdb_len = io->scsiio.cdb_len; 1930 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 1931 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 1932 1933 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 1934 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 1935 1936 if (io->io_hdr.flags & CTL_FLAG_ABORT) 1937 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 1938 1939 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 1940 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 1941 1942 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 1943 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 1944 } 1945 mtx_unlock(&lun->lun_lock); 1946 1947 return (retval); 1948} 1949 1950static void * 1951ctl_copyin_alloc(void *user_addr, int len, char *error_str, 1952 size_t error_str_len) 1953{ 1954 void *kptr; 1955 1956 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 1957 1958 if (copyin(user_addr, kptr, len) != 0) { 1959 snprintf(error_str, error_str_len, "Error copying %d bytes " 1960 "from user address %p to kernel address %p", len, 1961 user_addr, kptr); 1962 free(kptr, M_CTL); 1963 return (NULL); 1964 } 1965 1966 return (kptr); 1967} 1968 1969static void 1970ctl_free_args(int num_args, struct ctl_be_arg *args) 1971{ 1972 int i; 1973 1974 if (args == NULL) 1975 return; 1976 1977 for (i = 0; i < num_args; i++) { 1978 free(args[i].kname, M_CTL); 1979 free(args[i].kvalue, M_CTL); 1980 } 1981 1982 free(args, M_CTL); 1983} 1984 1985static struct ctl_be_arg * 1986ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 1987 char *error_str, size_t error_str_len) 1988{ 1989 struct ctl_be_arg *args; 1990 int i; 1991 1992 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 1993 error_str, error_str_len); 1994 1995 if (args == NULL) 1996 goto bailout; 1997 1998 for (i = 0; i < num_args; i++) { 1999 args[i].kname = NULL; 2000 args[i].kvalue = NULL; 2001 } 2002 2003 for (i = 0; i < num_args; i++) { 2004 uint8_t *tmpptr; 2005 2006 args[i].kname = ctl_copyin_alloc(args[i].name, 2007 args[i].namelen, error_str, error_str_len); 2008 if (args[i].kname == NULL) 2009 goto bailout; 2010 2011 if (args[i].kname[args[i].namelen - 1] != '\0') { 2012 snprintf(error_str, error_str_len, "Argument %d " 2013 "name is not NUL-terminated", i); 2014 goto bailout; 2015 } 2016 2017 if (args[i].flags & CTL_BEARG_RD) { 2018 tmpptr = ctl_copyin_alloc(args[i].value, 2019 args[i].vallen, error_str, error_str_len); 2020 if (tmpptr == NULL) 2021 goto bailout; 2022 if ((args[i].flags & CTL_BEARG_ASCII) 2023 && (tmpptr[args[i].vallen - 1] != '\0')) { 2024 snprintf(error_str, error_str_len, "Argument " 2025 "%d value is not NUL-terminated", i); 2026 goto bailout; 2027 } 2028 args[i].kvalue = tmpptr; 2029 } else { 2030 args[i].kvalue = malloc(args[i].vallen, 2031 M_CTL, M_WAITOK | M_ZERO); 2032 } 2033 } 2034 2035 return (args); 2036bailout: 2037 2038 ctl_free_args(num_args, args); 2039 2040 return (NULL); 2041} 2042 2043static void 2044ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2045{ 2046 int i; 2047 2048 for (i = 0; i < num_args; i++) { 2049 if (args[i].flags & CTL_BEARG_WR) 2050 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2051 } 2052} 2053 2054/* 2055 * Escape characters that are illegal or not recommended in XML. 2056 */ 2057int 2058ctl_sbuf_printf_esc(struct sbuf *sb, char *str, int size) 2059{ 2060 char *end = str + size; 2061 int retval; 2062 2063 retval = 0; 2064 2065 for (; *str && str < end; str++) { 2066 switch (*str) { 2067 case '&': 2068 retval = sbuf_printf(sb, "&"); 2069 break; 2070 case '>': 2071 retval = sbuf_printf(sb, ">"); 2072 break; 2073 case '<': 2074 retval = sbuf_printf(sb, "<"); 2075 break; 2076 default: 2077 retval = sbuf_putc(sb, *str); 2078 break; 2079 } 2080 2081 if (retval != 0) 2082 break; 2083 2084 } 2085 2086 return (retval); 2087} 2088 2089static void 2090ctl_id_sbuf(struct ctl_devid *id, struct sbuf *sb) 2091{ 2092 struct scsi_vpd_id_descriptor *desc; 2093 int i; 2094 2095 if (id == NULL || id->len < 4) 2096 return; 2097 desc = (struct scsi_vpd_id_descriptor *)id->data; 2098 switch (desc->id_type & SVPD_ID_TYPE_MASK) { 2099 case SVPD_ID_TYPE_T10: 2100 sbuf_printf(sb, "t10."); 2101 break; 2102 case SVPD_ID_TYPE_EUI64: 2103 sbuf_printf(sb, "eui."); 2104 break; 2105 case SVPD_ID_TYPE_NAA: 2106 sbuf_printf(sb, "naa."); 2107 break; 2108 case SVPD_ID_TYPE_SCSI_NAME: 2109 break; 2110 } 2111 switch (desc->proto_codeset & SVPD_ID_CODESET_MASK) { 2112 case SVPD_ID_CODESET_BINARY: 2113 for (i = 0; i < desc->length; i++) 2114 sbuf_printf(sb, "%02x", desc->identifier[i]); 2115 break; 2116 case SVPD_ID_CODESET_ASCII: 2117 sbuf_printf(sb, "%.*s", (int)desc->length, 2118 (char *)desc->identifier); 2119 break; 2120 case SVPD_ID_CODESET_UTF8: 2121 sbuf_printf(sb, "%s", (char *)desc->identifier); 2122 break; 2123 } 2124} 2125 2126static int 2127ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2128 struct thread *td) 2129{ 2130 struct ctl_softc *softc; 2131 struct ctl_lun *lun; 2132 int retval; 2133 2134 softc = control_softc; 2135 2136 retval = 0; 2137 2138 switch (cmd) { 2139 case CTL_IO: 2140 retval = ctl_ioctl_io(dev, cmd, addr, flag, td); 2141 break; 2142 case CTL_ENABLE_PORT: 2143 case CTL_DISABLE_PORT: 2144 case CTL_SET_PORT_WWNS: { 2145 struct ctl_port *port; 2146 struct ctl_port_entry *entry; 2147 2148 entry = (struct ctl_port_entry *)addr; 2149 2150 mtx_lock(&softc->ctl_lock); 2151 STAILQ_FOREACH(port, &softc->port_list, links) { 2152 int action, done; 2153 2154 if (port->targ_port < softc->port_min || 2155 port->targ_port >= softc->port_max) 2156 continue; 2157 2158 action = 0; 2159 done = 0; 2160 if ((entry->port_type == CTL_PORT_NONE) 2161 && (entry->targ_port == port->targ_port)) { 2162 /* 2163 * If the user only wants to enable or 2164 * disable or set WWNs on a specific port, 2165 * do the operation and we're done. 2166 */ 2167 action = 1; 2168 done = 1; 2169 } else if (entry->port_type & port->port_type) { 2170 /* 2171 * Compare the user's type mask with the 2172 * particular frontend type to see if we 2173 * have a match. 2174 */ 2175 action = 1; 2176 done = 0; 2177 2178 /* 2179 * Make sure the user isn't trying to set 2180 * WWNs on multiple ports at the same time. 2181 */ 2182 if (cmd == CTL_SET_PORT_WWNS) { 2183 printf("%s: Can't set WWNs on " 2184 "multiple ports\n", __func__); 2185 retval = EINVAL; 2186 break; 2187 } 2188 } 2189 if (action == 0) 2190 continue; 2191 2192 /* 2193 * XXX KDM we have to drop the lock here, because 2194 * the online/offline operations can potentially 2195 * block. We need to reference count the frontends 2196 * so they can't go away, 2197 */ 2198 if (cmd == CTL_ENABLE_PORT) { 2199 mtx_unlock(&softc->ctl_lock); 2200 ctl_port_online(port); 2201 mtx_lock(&softc->ctl_lock); 2202 } else if (cmd == CTL_DISABLE_PORT) { 2203 mtx_unlock(&softc->ctl_lock); 2204 ctl_port_offline(port); 2205 mtx_lock(&softc->ctl_lock); 2206 } else if (cmd == CTL_SET_PORT_WWNS) { 2207 ctl_port_set_wwns(port, 2208 (entry->flags & CTL_PORT_WWNN_VALID) ? 2209 1 : 0, entry->wwnn, 2210 (entry->flags & CTL_PORT_WWPN_VALID) ? 2211 1 : 0, entry->wwpn); 2212 } 2213 if (done != 0) 2214 break; 2215 } 2216 mtx_unlock(&softc->ctl_lock); 2217 break; 2218 } 2219 case CTL_GET_PORT_LIST: { 2220 struct ctl_port *port; 2221 struct ctl_port_list *list; 2222 int i; 2223 2224 list = (struct ctl_port_list *)addr; 2225 2226 if (list->alloc_len != (list->alloc_num * 2227 sizeof(struct ctl_port_entry))) { 2228 printf("%s: CTL_GET_PORT_LIST: alloc_len %u != " 2229 "alloc_num %u * sizeof(struct ctl_port_entry) " 2230 "%zu\n", __func__, list->alloc_len, 2231 list->alloc_num, sizeof(struct ctl_port_entry)); 2232 retval = EINVAL; 2233 break; 2234 } 2235 list->fill_len = 0; 2236 list->fill_num = 0; 2237 list->dropped_num = 0; 2238 i = 0; 2239 mtx_lock(&softc->ctl_lock); 2240 STAILQ_FOREACH(port, &softc->port_list, links) { 2241 struct ctl_port_entry entry, *list_entry; 2242 2243 if (list->fill_num >= list->alloc_num) { 2244 list->dropped_num++; 2245 continue; 2246 } 2247 2248 entry.port_type = port->port_type; 2249 strlcpy(entry.port_name, port->port_name, 2250 sizeof(entry.port_name)); 2251 entry.targ_port = port->targ_port; 2252 entry.physical_port = port->physical_port; 2253 entry.virtual_port = port->virtual_port; 2254 entry.wwnn = port->wwnn; 2255 entry.wwpn = port->wwpn; 2256 if (port->status & CTL_PORT_STATUS_ONLINE) 2257 entry.online = 1; 2258 else 2259 entry.online = 0; 2260 2261 list_entry = &list->entries[i]; 2262 2263 retval = copyout(&entry, list_entry, sizeof(entry)); 2264 if (retval != 0) { 2265 printf("%s: CTL_GET_PORT_LIST: copyout " 2266 "returned %d\n", __func__, retval); 2267 break; 2268 } 2269 i++; 2270 list->fill_num++; 2271 list->fill_len += sizeof(entry); 2272 } 2273 mtx_unlock(&softc->ctl_lock); 2274 2275 /* 2276 * If this is non-zero, we had a copyout fault, so there's 2277 * probably no point in attempting to set the status inside 2278 * the structure. 2279 */ 2280 if (retval != 0) 2281 break; 2282 2283 if (list->dropped_num > 0) 2284 list->status = CTL_PORT_LIST_NEED_MORE_SPACE; 2285 else 2286 list->status = CTL_PORT_LIST_OK; 2287 break; 2288 } 2289 case CTL_DUMP_OOA: { 2290 union ctl_io *io; 2291 char printbuf[128]; 2292 struct sbuf sb; 2293 2294 mtx_lock(&softc->ctl_lock); 2295 printf("Dumping OOA queues:\n"); 2296 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2297 mtx_lock(&lun->lun_lock); 2298 for (io = (union ctl_io *)TAILQ_FIRST( 2299 &lun->ooa_queue); io != NULL; 2300 io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2301 ooa_links)) { 2302 sbuf_new(&sb, printbuf, sizeof(printbuf), 2303 SBUF_FIXEDLEN); 2304 sbuf_printf(&sb, "LUN %jd tag 0x%04x%s%s%s%s: ", 2305 (intmax_t)lun->lun, 2306 io->scsiio.tag_num, 2307 (io->io_hdr.flags & 2308 CTL_FLAG_BLOCKED) ? "" : " BLOCKED", 2309 (io->io_hdr.flags & 2310 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 2311 (io->io_hdr.flags & 2312 CTL_FLAG_ABORT) ? " ABORT" : "", 2313 (io->io_hdr.flags & 2314 CTL_FLAG_IS_WAS_ON_RTR) ? " RTR" : ""); 2315 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 2316 sbuf_finish(&sb); 2317 printf("%s\n", sbuf_data(&sb)); 2318 } 2319 mtx_unlock(&lun->lun_lock); 2320 } 2321 printf("OOA queues dump done\n"); 2322 mtx_unlock(&softc->ctl_lock); 2323 break; 2324 } 2325 case CTL_GET_OOA: { 2326 struct ctl_ooa *ooa_hdr; 2327 struct ctl_ooa_entry *entries; 2328 uint32_t cur_fill_num; 2329 2330 ooa_hdr = (struct ctl_ooa *)addr; 2331 2332 if ((ooa_hdr->alloc_len == 0) 2333 || (ooa_hdr->alloc_num == 0)) { 2334 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2335 "must be non-zero\n", __func__, 2336 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2337 retval = EINVAL; 2338 break; 2339 } 2340 2341 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2342 sizeof(struct ctl_ooa_entry))) { 2343 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2344 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2345 __func__, ooa_hdr->alloc_len, 2346 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2347 retval = EINVAL; 2348 break; 2349 } 2350 2351 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2352 if (entries == NULL) { 2353 printf("%s: could not allocate %d bytes for OOA " 2354 "dump\n", __func__, ooa_hdr->alloc_len); 2355 retval = ENOMEM; 2356 break; 2357 } 2358 2359 mtx_lock(&softc->ctl_lock); 2360 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2361 && ((ooa_hdr->lun_num >= CTL_MAX_LUNS) 2362 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2363 mtx_unlock(&softc->ctl_lock); 2364 free(entries, M_CTL); 2365 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2366 __func__, (uintmax_t)ooa_hdr->lun_num); 2367 retval = EINVAL; 2368 break; 2369 } 2370 2371 cur_fill_num = 0; 2372 2373 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2374 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2375 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2376 ooa_hdr, entries); 2377 if (retval != 0) 2378 break; 2379 } 2380 if (retval != 0) { 2381 mtx_unlock(&softc->ctl_lock); 2382 free(entries, M_CTL); 2383 break; 2384 } 2385 } else { 2386 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2387 2388 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num,ooa_hdr, 2389 entries); 2390 } 2391 mtx_unlock(&softc->ctl_lock); 2392 2393 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2394 ooa_hdr->fill_len = ooa_hdr->fill_num * 2395 sizeof(struct ctl_ooa_entry); 2396 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2397 if (retval != 0) { 2398 printf("%s: error copying out %d bytes for OOA dump\n", 2399 __func__, ooa_hdr->fill_len); 2400 } 2401 2402 getbintime(&ooa_hdr->cur_bt); 2403 2404 if (cur_fill_num > ooa_hdr->alloc_num) { 2405 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2406 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2407 } else { 2408 ooa_hdr->dropped_num = 0; 2409 ooa_hdr->status = CTL_OOA_OK; 2410 } 2411 2412 free(entries, M_CTL); 2413 break; 2414 } 2415 case CTL_CHECK_OOA: { 2416 union ctl_io *io; 2417 struct ctl_ooa_info *ooa_info; 2418 2419 2420 ooa_info = (struct ctl_ooa_info *)addr; 2421 2422 if (ooa_info->lun_id >= CTL_MAX_LUNS) { 2423 ooa_info->status = CTL_OOA_INVALID_LUN; 2424 break; 2425 } 2426 mtx_lock(&softc->ctl_lock); 2427 lun = softc->ctl_luns[ooa_info->lun_id]; 2428 if (lun == NULL) { 2429 mtx_unlock(&softc->ctl_lock); 2430 ooa_info->status = CTL_OOA_INVALID_LUN; 2431 break; 2432 } 2433 mtx_lock(&lun->lun_lock); 2434 mtx_unlock(&softc->ctl_lock); 2435 ooa_info->num_entries = 0; 2436 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 2437 io != NULL; io = (union ctl_io *)TAILQ_NEXT( 2438 &io->io_hdr, ooa_links)) { 2439 ooa_info->num_entries++; 2440 } 2441 mtx_unlock(&lun->lun_lock); 2442 2443 ooa_info->status = CTL_OOA_SUCCESS; 2444 2445 break; 2446 } 2447 case CTL_DELAY_IO: { 2448 struct ctl_io_delay_info *delay_info; 2449 2450 delay_info = (struct ctl_io_delay_info *)addr; 2451 2452#ifdef CTL_IO_DELAY 2453 mtx_lock(&softc->ctl_lock); 2454 2455 if ((delay_info->lun_id >= CTL_MAX_LUNS) 2456 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2457 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2458 } else { 2459 lun = softc->ctl_luns[delay_info->lun_id]; 2460 mtx_lock(&lun->lun_lock); 2461 2462 delay_info->status = CTL_DELAY_STATUS_OK; 2463 2464 switch (delay_info->delay_type) { 2465 case CTL_DELAY_TYPE_CONT: 2466 break; 2467 case CTL_DELAY_TYPE_ONESHOT: 2468 break; 2469 default: 2470 delay_info->status = 2471 CTL_DELAY_STATUS_INVALID_TYPE; 2472 break; 2473 } 2474 2475 switch (delay_info->delay_loc) { 2476 case CTL_DELAY_LOC_DATAMOVE: 2477 lun->delay_info.datamove_type = 2478 delay_info->delay_type; 2479 lun->delay_info.datamove_delay = 2480 delay_info->delay_secs; 2481 break; 2482 case CTL_DELAY_LOC_DONE: 2483 lun->delay_info.done_type = 2484 delay_info->delay_type; 2485 lun->delay_info.done_delay = 2486 delay_info->delay_secs; 2487 break; 2488 default: 2489 delay_info->status = 2490 CTL_DELAY_STATUS_INVALID_LOC; 2491 break; 2492 } 2493 mtx_unlock(&lun->lun_lock); 2494 } 2495 2496 mtx_unlock(&softc->ctl_lock); 2497#else 2498 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2499#endif /* CTL_IO_DELAY */ 2500 break; 2501 } 2502 case CTL_REALSYNC_SET: { 2503 int *syncstate; 2504 2505 syncstate = (int *)addr; 2506 2507 mtx_lock(&softc->ctl_lock); 2508 switch (*syncstate) { 2509 case 0: 2510 softc->flags &= ~CTL_FLAG_REAL_SYNC; 2511 break; 2512 case 1: 2513 softc->flags |= CTL_FLAG_REAL_SYNC; 2514 break; 2515 default: 2516 retval = EINVAL; 2517 break; 2518 } 2519 mtx_unlock(&softc->ctl_lock); 2520 break; 2521 } 2522 case CTL_REALSYNC_GET: { 2523 int *syncstate; 2524 2525 syncstate = (int*)addr; 2526 2527 mtx_lock(&softc->ctl_lock); 2528 if (softc->flags & CTL_FLAG_REAL_SYNC) 2529 *syncstate = 1; 2530 else 2531 *syncstate = 0; 2532 mtx_unlock(&softc->ctl_lock); 2533 2534 break; 2535 } 2536 case CTL_SETSYNC: 2537 case CTL_GETSYNC: { 2538 struct ctl_sync_info *sync_info; 2539 2540 sync_info = (struct ctl_sync_info *)addr; 2541 2542 mtx_lock(&softc->ctl_lock); 2543 lun = softc->ctl_luns[sync_info->lun_id]; 2544 if (lun == NULL) { 2545 mtx_unlock(&softc->ctl_lock); 2546 sync_info->status = CTL_GS_SYNC_NO_LUN; 2547 break; 2548 } 2549 /* 2550 * Get or set the sync interval. We're not bounds checking 2551 * in the set case, hopefully the user won't do something 2552 * silly. 2553 */ 2554 mtx_lock(&lun->lun_lock); 2555 mtx_unlock(&softc->ctl_lock); 2556 if (cmd == CTL_GETSYNC) 2557 sync_info->sync_interval = lun->sync_interval; 2558 else 2559 lun->sync_interval = sync_info->sync_interval; 2560 mtx_unlock(&lun->lun_lock); 2561 2562 sync_info->status = CTL_GS_SYNC_OK; 2563 2564 break; 2565 } 2566 case CTL_GETSTATS: { 2567 struct ctl_stats *stats; 2568 int i; 2569 2570 stats = (struct ctl_stats *)addr; 2571 2572 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2573 stats->alloc_len) { 2574 stats->status = CTL_SS_NEED_MORE_SPACE; 2575 stats->num_luns = softc->num_luns; 2576 break; 2577 } 2578 /* 2579 * XXX KDM no locking here. If the LUN list changes, 2580 * things can blow up. 2581 */ 2582 for (i = 0, lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; 2583 i++, lun = STAILQ_NEXT(lun, links)) { 2584 retval = copyout(&lun->stats, &stats->lun_stats[i], 2585 sizeof(lun->stats)); 2586 if (retval != 0) 2587 break; 2588 } 2589 stats->num_luns = softc->num_luns; 2590 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2591 softc->num_luns; 2592 stats->status = CTL_SS_OK; 2593#ifdef CTL_TIME_IO 2594 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2595#else 2596 stats->flags = CTL_STATS_FLAG_NONE; 2597#endif 2598 getnanouptime(&stats->timestamp); 2599 break; 2600 } 2601 case CTL_ERROR_INJECT: { 2602 struct ctl_error_desc *err_desc, *new_err_desc; 2603 2604 err_desc = (struct ctl_error_desc *)addr; 2605 2606 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2607 M_WAITOK | M_ZERO); 2608 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2609 2610 mtx_lock(&softc->ctl_lock); 2611 lun = softc->ctl_luns[err_desc->lun_id]; 2612 if (lun == NULL) { 2613 mtx_unlock(&softc->ctl_lock); 2614 free(new_err_desc, M_CTL); 2615 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2616 __func__, (uintmax_t)err_desc->lun_id); 2617 retval = EINVAL; 2618 break; 2619 } 2620 mtx_lock(&lun->lun_lock); 2621 mtx_unlock(&softc->ctl_lock); 2622 2623 /* 2624 * We could do some checking here to verify the validity 2625 * of the request, but given the complexity of error 2626 * injection requests, the checking logic would be fairly 2627 * complex. 2628 * 2629 * For now, if the request is invalid, it just won't get 2630 * executed and might get deleted. 2631 */ 2632 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2633 2634 /* 2635 * XXX KDM check to make sure the serial number is unique, 2636 * in case we somehow manage to wrap. That shouldn't 2637 * happen for a very long time, but it's the right thing to 2638 * do. 2639 */ 2640 new_err_desc->serial = lun->error_serial; 2641 err_desc->serial = lun->error_serial; 2642 lun->error_serial++; 2643 2644 mtx_unlock(&lun->lun_lock); 2645 break; 2646 } 2647 case CTL_ERROR_INJECT_DELETE: { 2648 struct ctl_error_desc *delete_desc, *desc, *desc2; 2649 int delete_done; 2650 2651 delete_desc = (struct ctl_error_desc *)addr; 2652 delete_done = 0; 2653 2654 mtx_lock(&softc->ctl_lock); 2655 lun = softc->ctl_luns[delete_desc->lun_id]; 2656 if (lun == NULL) { 2657 mtx_unlock(&softc->ctl_lock); 2658 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 2659 __func__, (uintmax_t)delete_desc->lun_id); 2660 retval = EINVAL; 2661 break; 2662 } 2663 mtx_lock(&lun->lun_lock); 2664 mtx_unlock(&softc->ctl_lock); 2665 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 2666 if (desc->serial != delete_desc->serial) 2667 continue; 2668 2669 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 2670 links); 2671 free(desc, M_CTL); 2672 delete_done = 1; 2673 } 2674 mtx_unlock(&lun->lun_lock); 2675 if (delete_done == 0) { 2676 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 2677 "error serial %ju on LUN %u\n", __func__, 2678 delete_desc->serial, delete_desc->lun_id); 2679 retval = EINVAL; 2680 break; 2681 } 2682 break; 2683 } 2684 case CTL_DUMP_STRUCTS: { 2685 int i, j, k; 2686 struct ctl_port *port; 2687 struct ctl_frontend *fe; 2688 2689 mtx_lock(&softc->ctl_lock); 2690 printf("CTL Persistent Reservation information start:\n"); 2691 for (i = 0; i < CTL_MAX_LUNS; i++) { 2692 lun = softc->ctl_luns[i]; 2693 2694 if ((lun == NULL) 2695 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 2696 continue; 2697 2698 for (j = 0; j < CTL_MAX_PORTS; j++) { 2699 if (lun->pr_keys[j] == NULL) 2700 continue; 2701 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 2702 if (lun->pr_keys[j][k] == 0) 2703 continue; 2704 printf(" LUN %d port %d iid %d key " 2705 "%#jx\n", i, j, k, 2706 (uintmax_t)lun->pr_keys[j][k]); 2707 } 2708 } 2709 } 2710 printf("CTL Persistent Reservation information end\n"); 2711 printf("CTL Ports:\n"); 2712 STAILQ_FOREACH(port, &softc->port_list, links) { 2713 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 2714 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 2715 port->frontend->name, port->port_type, 2716 port->physical_port, port->virtual_port, 2717 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 2718 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 2719 if (port->wwpn_iid[j].in_use == 0 && 2720 port->wwpn_iid[j].wwpn == 0 && 2721 port->wwpn_iid[j].name == NULL) 2722 continue; 2723 2724 printf(" iid %u use %d WWPN %#jx '%s'\n", 2725 j, port->wwpn_iid[j].in_use, 2726 (uintmax_t)port->wwpn_iid[j].wwpn, 2727 port->wwpn_iid[j].name); 2728 } 2729 } 2730 printf("CTL Port information end\n"); 2731 mtx_unlock(&softc->ctl_lock); 2732 /* 2733 * XXX KDM calling this without a lock. We'd likely want 2734 * to drop the lock before calling the frontend's dump 2735 * routine anyway. 2736 */ 2737 printf("CTL Frontends:\n"); 2738 STAILQ_FOREACH(fe, &softc->fe_list, links) { 2739 printf(" Frontend '%s'\n", fe->name); 2740 if (fe->fe_dump != NULL) 2741 fe->fe_dump(); 2742 } 2743 printf("CTL Frontend information end\n"); 2744 break; 2745 } 2746 case CTL_LUN_REQ: { 2747 struct ctl_lun_req *lun_req; 2748 struct ctl_backend_driver *backend; 2749 2750 lun_req = (struct ctl_lun_req *)addr; 2751 2752 backend = ctl_backend_find(lun_req->backend); 2753 if (backend == NULL) { 2754 lun_req->status = CTL_LUN_ERROR; 2755 snprintf(lun_req->error_str, 2756 sizeof(lun_req->error_str), 2757 "Backend \"%s\" not found.", 2758 lun_req->backend); 2759 break; 2760 } 2761 if (lun_req->num_be_args > 0) { 2762 lun_req->kern_be_args = ctl_copyin_args( 2763 lun_req->num_be_args, 2764 lun_req->be_args, 2765 lun_req->error_str, 2766 sizeof(lun_req->error_str)); 2767 if (lun_req->kern_be_args == NULL) { 2768 lun_req->status = CTL_LUN_ERROR; 2769 break; 2770 } 2771 } 2772 2773 retval = backend->ioctl(dev, cmd, addr, flag, td); 2774 2775 if (lun_req->num_be_args > 0) { 2776 ctl_copyout_args(lun_req->num_be_args, 2777 lun_req->kern_be_args); 2778 ctl_free_args(lun_req->num_be_args, 2779 lun_req->kern_be_args); 2780 } 2781 break; 2782 } 2783 case CTL_LUN_LIST: { 2784 struct sbuf *sb; 2785 struct ctl_lun_list *list; 2786 struct ctl_option *opt; 2787 2788 list = (struct ctl_lun_list *)addr; 2789 2790 /* 2791 * Allocate a fixed length sbuf here, based on the length 2792 * of the user's buffer. We could allocate an auto-extending 2793 * buffer, and then tell the user how much larger our 2794 * amount of data is than his buffer, but that presents 2795 * some problems: 2796 * 2797 * 1. The sbuf(9) routines use a blocking malloc, and so 2798 * we can't hold a lock while calling them with an 2799 * auto-extending buffer. 2800 * 2801 * 2. There is not currently a LUN reference counting 2802 * mechanism, outside of outstanding transactions on 2803 * the LUN's OOA queue. So a LUN could go away on us 2804 * while we're getting the LUN number, backend-specific 2805 * information, etc. Thus, given the way things 2806 * currently work, we need to hold the CTL lock while 2807 * grabbing LUN information. 2808 * 2809 * So, from the user's standpoint, the best thing to do is 2810 * allocate what he thinks is a reasonable buffer length, 2811 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 2812 * double the buffer length and try again. (And repeat 2813 * that until he succeeds.) 2814 */ 2815 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 2816 if (sb == NULL) { 2817 list->status = CTL_LUN_LIST_ERROR; 2818 snprintf(list->error_str, sizeof(list->error_str), 2819 "Unable to allocate %d bytes for LUN list", 2820 list->alloc_len); 2821 break; 2822 } 2823 2824 sbuf_printf(sb, "<ctllunlist>\n"); 2825 2826 mtx_lock(&softc->ctl_lock); 2827 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2828 mtx_lock(&lun->lun_lock); 2829 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 2830 (uintmax_t)lun->lun); 2831 2832 /* 2833 * Bail out as soon as we see that we've overfilled 2834 * the buffer. 2835 */ 2836 if (retval != 0) 2837 break; 2838 2839 retval = sbuf_printf(sb, "\t<backend_type>%s" 2840 "</backend_type>\n", 2841 (lun->backend == NULL) ? "none" : 2842 lun->backend->name); 2843 2844 if (retval != 0) 2845 break; 2846 2847 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 2848 lun->be_lun->lun_type); 2849 2850 if (retval != 0) 2851 break; 2852 2853 if (lun->backend == NULL) { 2854 retval = sbuf_printf(sb, "</lun>\n"); 2855 if (retval != 0) 2856 break; 2857 continue; 2858 } 2859 2860 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 2861 (lun->be_lun->maxlba > 0) ? 2862 lun->be_lun->maxlba + 1 : 0); 2863 2864 if (retval != 0) 2865 break; 2866 2867 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 2868 lun->be_lun->blocksize); 2869 2870 if (retval != 0) 2871 break; 2872 2873 retval = sbuf_printf(sb, "\t<serial_number>"); 2874 2875 if (retval != 0) 2876 break; 2877 2878 retval = ctl_sbuf_printf_esc(sb, 2879 lun->be_lun->serial_num, 2880 sizeof(lun->be_lun->serial_num)); 2881 2882 if (retval != 0) 2883 break; 2884 2885 retval = sbuf_printf(sb, "</serial_number>\n"); 2886 2887 if (retval != 0) 2888 break; 2889 2890 retval = sbuf_printf(sb, "\t<device_id>"); 2891 2892 if (retval != 0) 2893 break; 2894 2895 retval = ctl_sbuf_printf_esc(sb, 2896 lun->be_lun->device_id, 2897 sizeof(lun->be_lun->device_id)); 2898 2899 if (retval != 0) 2900 break; 2901 2902 retval = sbuf_printf(sb, "</device_id>\n"); 2903 2904 if (retval != 0) 2905 break; 2906 2907 if (lun->backend->lun_info != NULL) { 2908 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 2909 if (retval != 0) 2910 break; 2911 } 2912 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 2913 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 2914 opt->name, opt->value, opt->name); 2915 if (retval != 0) 2916 break; 2917 } 2918 2919 retval = sbuf_printf(sb, "</lun>\n"); 2920 2921 if (retval != 0) 2922 break; 2923 mtx_unlock(&lun->lun_lock); 2924 } 2925 if (lun != NULL) 2926 mtx_unlock(&lun->lun_lock); 2927 mtx_unlock(&softc->ctl_lock); 2928 2929 if ((retval != 0) 2930 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 2931 retval = 0; 2932 sbuf_delete(sb); 2933 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 2934 snprintf(list->error_str, sizeof(list->error_str), 2935 "Out of space, %d bytes is too small", 2936 list->alloc_len); 2937 break; 2938 } 2939 2940 sbuf_finish(sb); 2941 2942 retval = copyout(sbuf_data(sb), list->lun_xml, 2943 sbuf_len(sb) + 1); 2944 2945 list->fill_len = sbuf_len(sb) + 1; 2946 list->status = CTL_LUN_LIST_OK; 2947 sbuf_delete(sb); 2948 break; 2949 } 2950 case CTL_ISCSI: { 2951 struct ctl_iscsi *ci; 2952 struct ctl_frontend *fe; 2953 2954 ci = (struct ctl_iscsi *)addr; 2955 2956 fe = ctl_frontend_find("iscsi"); 2957 if (fe == NULL) { 2958 ci->status = CTL_ISCSI_ERROR; 2959 snprintf(ci->error_str, sizeof(ci->error_str), 2960 "Frontend \"iscsi\" not found."); 2961 break; 2962 } 2963 2964 retval = fe->ioctl(dev, cmd, addr, flag, td); 2965 break; 2966 } 2967 case CTL_PORT_REQ: { 2968 struct ctl_req *req; 2969 struct ctl_frontend *fe; 2970 2971 req = (struct ctl_req *)addr; 2972 2973 fe = ctl_frontend_find(req->driver); 2974 if (fe == NULL) { 2975 req->status = CTL_LUN_ERROR; 2976 snprintf(req->error_str, sizeof(req->error_str), 2977 "Frontend \"%s\" not found.", req->driver); 2978 break; 2979 } 2980 if (req->num_args > 0) { 2981 req->kern_args = ctl_copyin_args(req->num_args, 2982 req->args, req->error_str, sizeof(req->error_str)); 2983 if (req->kern_args == NULL) { 2984 req->status = CTL_LUN_ERROR; 2985 break; 2986 } 2987 } 2988 2989 if (fe->ioctl) 2990 retval = fe->ioctl(dev, cmd, addr, flag, td); 2991 else 2992 retval = ENODEV; 2993 2994 if (req->num_args > 0) { 2995 ctl_copyout_args(req->num_args, req->kern_args); 2996 ctl_free_args(req->num_args, req->kern_args); 2997 } 2998 break; 2999 } 3000 case CTL_PORT_LIST: { 3001 struct sbuf *sb; 3002 struct ctl_port *port; 3003 struct ctl_lun_list *list; 3004 struct ctl_option *opt; 3005 int j; 3006 uint32_t plun; 3007 3008 list = (struct ctl_lun_list *)addr; 3009 3010 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3011 if (sb == NULL) { 3012 list->status = CTL_LUN_LIST_ERROR; 3013 snprintf(list->error_str, sizeof(list->error_str), 3014 "Unable to allocate %d bytes for LUN list", 3015 list->alloc_len); 3016 break; 3017 } 3018 3019 sbuf_printf(sb, "<ctlportlist>\n"); 3020 3021 mtx_lock(&softc->ctl_lock); 3022 STAILQ_FOREACH(port, &softc->port_list, links) { 3023 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3024 (uintmax_t)port->targ_port); 3025 3026 /* 3027 * Bail out as soon as we see that we've overfilled 3028 * the buffer. 3029 */ 3030 if (retval != 0) 3031 break; 3032 3033 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3034 "</frontend_type>\n", port->frontend->name); 3035 if (retval != 0) 3036 break; 3037 3038 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3039 port->port_type); 3040 if (retval != 0) 3041 break; 3042 3043 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3044 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3045 if (retval != 0) 3046 break; 3047 3048 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3049 port->port_name); 3050 if (retval != 0) 3051 break; 3052 3053 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3054 port->physical_port); 3055 if (retval != 0) 3056 break; 3057 3058 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3059 port->virtual_port); 3060 if (retval != 0) 3061 break; 3062 3063 if (port->target_devid != NULL) { 3064 sbuf_printf(sb, "\t<target>"); 3065 ctl_id_sbuf(port->target_devid, sb); 3066 sbuf_printf(sb, "</target>\n"); 3067 } 3068 3069 if (port->port_devid != NULL) { 3070 sbuf_printf(sb, "\t<port>"); 3071 ctl_id_sbuf(port->port_devid, sb); 3072 sbuf_printf(sb, "</port>\n"); 3073 } 3074 3075 if (port->port_info != NULL) { 3076 retval = port->port_info(port->onoff_arg, sb); 3077 if (retval != 0) 3078 break; 3079 } 3080 STAILQ_FOREACH(opt, &port->options, links) { 3081 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3082 opt->name, opt->value, opt->name); 3083 if (retval != 0) 3084 break; 3085 } 3086 3087 if (port->lun_map != NULL) { 3088 sbuf_printf(sb, "\t<lun_map>on</lun_map>\n"); 3089 for (j = 0; j < CTL_MAX_LUNS; j++) { 3090 plun = ctl_lun_map_from_port(port, j); 3091 if (plun >= CTL_MAX_LUNS) 3092 continue; 3093 sbuf_printf(sb, 3094 "\t<lun id=\"%u\">%u</lun>\n", 3095 j, plun); 3096 } 3097 } 3098 3099 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3100 if (port->wwpn_iid[j].in_use == 0 || 3101 (port->wwpn_iid[j].wwpn == 0 && 3102 port->wwpn_iid[j].name == NULL)) 3103 continue; 3104 3105 if (port->wwpn_iid[j].name != NULL) 3106 retval = sbuf_printf(sb, 3107 "\t<initiator id=\"%u\">%s</initiator>\n", 3108 j, port->wwpn_iid[j].name); 3109 else 3110 retval = sbuf_printf(sb, 3111 "\t<initiator id=\"%u\">naa.%08jx</initiator>\n", 3112 j, port->wwpn_iid[j].wwpn); 3113 if (retval != 0) 3114 break; 3115 } 3116 if (retval != 0) 3117 break; 3118 3119 retval = sbuf_printf(sb, "</targ_port>\n"); 3120 if (retval != 0) 3121 break; 3122 } 3123 mtx_unlock(&softc->ctl_lock); 3124 3125 if ((retval != 0) 3126 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3127 retval = 0; 3128 sbuf_delete(sb); 3129 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3130 snprintf(list->error_str, sizeof(list->error_str), 3131 "Out of space, %d bytes is too small", 3132 list->alloc_len); 3133 break; 3134 } 3135 3136 sbuf_finish(sb); 3137 3138 retval = copyout(sbuf_data(sb), list->lun_xml, 3139 sbuf_len(sb) + 1); 3140 3141 list->fill_len = sbuf_len(sb) + 1; 3142 list->status = CTL_LUN_LIST_OK; 3143 sbuf_delete(sb); 3144 break; 3145 } 3146 case CTL_LUN_MAP: { 3147 struct ctl_lun_map *lm = (struct ctl_lun_map *)addr; 3148 struct ctl_port *port; 3149 3150 mtx_lock(&softc->ctl_lock); 3151 if (lm->port < softc->port_min || 3152 lm->port >= softc->port_max || 3153 (port = softc->ctl_ports[lm->port]) == NULL) { 3154 mtx_unlock(&softc->ctl_lock); 3155 return (ENXIO); 3156 } 3157 if (port->status & CTL_PORT_STATUS_ONLINE) { 3158 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3159 if (ctl_lun_map_to_port(port, lun->lun) >= 3160 CTL_MAX_LUNS) 3161 continue; 3162 mtx_lock(&lun->lun_lock); 3163 ctl_est_ua_port(lun, lm->port, -1, 3164 CTL_UA_LUN_CHANGE); 3165 mtx_unlock(&lun->lun_lock); 3166 } 3167 } 3168 mtx_unlock(&softc->ctl_lock); // XXX: port_enable sleeps 3169 if (lm->plun < CTL_MAX_LUNS) { 3170 if (lm->lun == UINT32_MAX) 3171 retval = ctl_lun_map_unset(port, lm->plun); 3172 else if (lm->lun < CTL_MAX_LUNS && 3173 softc->ctl_luns[lm->lun] != NULL) 3174 retval = ctl_lun_map_set(port, lm->plun, lm->lun); 3175 else 3176 return (ENXIO); 3177 } else if (lm->plun == UINT32_MAX) { 3178 if (lm->lun == UINT32_MAX) 3179 retval = ctl_lun_map_deinit(port); 3180 else 3181 retval = ctl_lun_map_init(port); 3182 } else 3183 return (ENXIO); 3184 if (port->status & CTL_PORT_STATUS_ONLINE) 3185 ctl_isc_announce_port(port); 3186 break; 3187 } 3188 default: { 3189 /* XXX KDM should we fix this? */ 3190#if 0 3191 struct ctl_backend_driver *backend; 3192 unsigned int type; 3193 int found; 3194 3195 found = 0; 3196 3197 /* 3198 * We encode the backend type as the ioctl type for backend 3199 * ioctls. So parse it out here, and then search for a 3200 * backend of this type. 3201 */ 3202 type = _IOC_TYPE(cmd); 3203 3204 STAILQ_FOREACH(backend, &softc->be_list, links) { 3205 if (backend->type == type) { 3206 found = 1; 3207 break; 3208 } 3209 } 3210 if (found == 0) { 3211 printf("ctl: unknown ioctl command %#lx or backend " 3212 "%d\n", cmd, type); 3213 retval = EINVAL; 3214 break; 3215 } 3216 retval = backend->ioctl(dev, cmd, addr, flag, td); 3217#endif 3218 retval = ENOTTY; 3219 break; 3220 } 3221 } 3222 return (retval); 3223} 3224 3225uint32_t 3226ctl_get_initindex(struct ctl_nexus *nexus) 3227{ 3228 return (nexus->initid + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3229} 3230 3231int 3232ctl_lun_map_init(struct ctl_port *port) 3233{ 3234 struct ctl_softc *softc = control_softc; 3235 struct ctl_lun *lun; 3236 uint32_t i; 3237 3238 if (port->lun_map == NULL) 3239 port->lun_map = malloc(sizeof(uint32_t) * CTL_MAX_LUNS, 3240 M_CTL, M_NOWAIT); 3241 if (port->lun_map == NULL) 3242 return (ENOMEM); 3243 for (i = 0; i < CTL_MAX_LUNS; i++) 3244 port->lun_map[i] = UINT32_MAX; 3245 if (port->status & CTL_PORT_STATUS_ONLINE) { 3246 if (port->lun_disable != NULL) { 3247 STAILQ_FOREACH(lun, &softc->lun_list, links) 3248 port->lun_disable(port->targ_lun_arg, lun->lun); 3249 } 3250 ctl_isc_announce_port(port); 3251 } 3252 return (0); 3253} 3254 3255int 3256ctl_lun_map_deinit(struct ctl_port *port) 3257{ 3258 struct ctl_softc *softc = control_softc; 3259 struct ctl_lun *lun; 3260 3261 if (port->lun_map == NULL) 3262 return (0); 3263 free(port->lun_map, M_CTL); 3264 port->lun_map = NULL; 3265 if (port->status & CTL_PORT_STATUS_ONLINE) { 3266 if (port->lun_enable != NULL) { 3267 STAILQ_FOREACH(lun, &softc->lun_list, links) 3268 port->lun_enable(port->targ_lun_arg, lun->lun); 3269 } 3270 ctl_isc_announce_port(port); 3271 } 3272 return (0); 3273} 3274 3275int 3276ctl_lun_map_set(struct ctl_port *port, uint32_t plun, uint32_t glun) 3277{ 3278 int status; 3279 uint32_t old; 3280 3281 if (port->lun_map == NULL) { 3282 status = ctl_lun_map_init(port); 3283 if (status != 0) 3284 return (status); 3285 } 3286 old = port->lun_map[plun]; 3287 port->lun_map[plun] = glun; 3288 if ((port->status & CTL_PORT_STATUS_ONLINE) && old >= CTL_MAX_LUNS) { 3289 if (port->lun_enable != NULL) 3290 port->lun_enable(port->targ_lun_arg, plun); 3291 ctl_isc_announce_port(port); 3292 } 3293 return (0); 3294} 3295 3296int 3297ctl_lun_map_unset(struct ctl_port *port, uint32_t plun) 3298{ 3299 uint32_t old; 3300 3301 if (port->lun_map == NULL) 3302 return (0); 3303 old = port->lun_map[plun]; 3304 port->lun_map[plun] = UINT32_MAX; 3305 if ((port->status & CTL_PORT_STATUS_ONLINE) && old < CTL_MAX_LUNS) { 3306 if (port->lun_disable != NULL) 3307 port->lun_disable(port->targ_lun_arg, plun); 3308 ctl_isc_announce_port(port); 3309 } 3310 return (0); 3311} 3312 3313uint32_t 3314ctl_lun_map_from_port(struct ctl_port *port, uint32_t lun_id) 3315{ 3316 3317 if (port == NULL) 3318 return (UINT32_MAX); 3319 if (port->lun_map == NULL || lun_id >= CTL_MAX_LUNS) 3320 return (lun_id); 3321 return (port->lun_map[lun_id]); 3322} 3323 3324uint32_t 3325ctl_lun_map_to_port(struct ctl_port *port, uint32_t lun_id) 3326{ 3327 uint32_t i; 3328 3329 if (port == NULL) 3330 return (UINT32_MAX); 3331 if (port->lun_map == NULL) 3332 return (lun_id); 3333 for (i = 0; i < CTL_MAX_LUNS; i++) { 3334 if (port->lun_map[i] == lun_id) 3335 return (i); 3336 } 3337 return (UINT32_MAX); 3338} 3339 3340static struct ctl_port * 3341ctl_io_port(struct ctl_io_hdr *io_hdr) 3342{ 3343 3344 return (control_softc->ctl_ports[io_hdr->nexus.targ_port]); 3345} 3346 3347int 3348ctl_ffz(uint32_t *mask, uint32_t first, uint32_t last) 3349{ 3350 int i; 3351 3352 for (i = first; i < last; i++) { 3353 if ((mask[i / 32] & (1 << (i % 32))) == 0) 3354 return (i); 3355 } 3356 return (-1); 3357} 3358 3359int 3360ctl_set_mask(uint32_t *mask, uint32_t bit) 3361{ 3362 uint32_t chunk, piece; 3363 3364 chunk = bit >> 5; 3365 piece = bit % (sizeof(uint32_t) * 8); 3366 3367 if ((mask[chunk] & (1 << piece)) != 0) 3368 return (-1); 3369 else 3370 mask[chunk] |= (1 << piece); 3371 3372 return (0); 3373} 3374 3375int 3376ctl_clear_mask(uint32_t *mask, uint32_t bit) 3377{ 3378 uint32_t chunk, piece; 3379 3380 chunk = bit >> 5; 3381 piece = bit % (sizeof(uint32_t) * 8); 3382 3383 if ((mask[chunk] & (1 << piece)) == 0) 3384 return (-1); 3385 else 3386 mask[chunk] &= ~(1 << piece); 3387 3388 return (0); 3389} 3390 3391int 3392ctl_is_set(uint32_t *mask, uint32_t bit) 3393{ 3394 uint32_t chunk, piece; 3395 3396 chunk = bit >> 5; 3397 piece = bit % (sizeof(uint32_t) * 8); 3398 3399 if ((mask[chunk] & (1 << piece)) == 0) 3400 return (0); 3401 else 3402 return (1); 3403} 3404 3405static uint64_t 3406ctl_get_prkey(struct ctl_lun *lun, uint32_t residx) 3407{ 3408 uint64_t *t; 3409 3410 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3411 if (t == NULL) 3412 return (0); 3413 return (t[residx % CTL_MAX_INIT_PER_PORT]); 3414} 3415 3416static void 3417ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx) 3418{ 3419 uint64_t *t; 3420 3421 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3422 if (t == NULL) 3423 return; 3424 t[residx % CTL_MAX_INIT_PER_PORT] = 0; 3425} 3426 3427static void 3428ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx) 3429{ 3430 uint64_t *p; 3431 u_int i; 3432 3433 i = residx/CTL_MAX_INIT_PER_PORT; 3434 if (lun->pr_keys[i] != NULL) 3435 return; 3436 mtx_unlock(&lun->lun_lock); 3437 p = malloc(sizeof(uint64_t) * CTL_MAX_INIT_PER_PORT, M_CTL, 3438 M_WAITOK | M_ZERO); 3439 mtx_lock(&lun->lun_lock); 3440 if (lun->pr_keys[i] == NULL) 3441 lun->pr_keys[i] = p; 3442 else 3443 free(p, M_CTL); 3444} 3445 3446static void 3447ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key) 3448{ 3449 uint64_t *t; 3450 3451 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3452 KASSERT(t != NULL, ("prkey %d is not allocated", residx)); 3453 t[residx % CTL_MAX_INIT_PER_PORT] = key; 3454} 3455 3456/* 3457 * ctl_softc, pool_name, total_ctl_io are passed in. 3458 * npool is passed out. 3459 */ 3460int 3461ctl_pool_create(struct ctl_softc *ctl_softc, const char *pool_name, 3462 uint32_t total_ctl_io, void **npool) 3463{ 3464#ifdef IO_POOLS 3465 struct ctl_io_pool *pool; 3466 3467 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3468 M_NOWAIT | M_ZERO); 3469 if (pool == NULL) 3470 return (ENOMEM); 3471 3472 snprintf(pool->name, sizeof(pool->name), "CTL IO %s", pool_name); 3473 pool->ctl_softc = ctl_softc; 3474 pool->zone = uma_zsecond_create(pool->name, NULL, 3475 NULL, NULL, NULL, ctl_softc->io_zone); 3476 /* uma_prealloc(pool->zone, total_ctl_io); */ 3477 3478 *npool = pool; 3479#else 3480 *npool = ctl_softc->io_zone; 3481#endif 3482 return (0); 3483} 3484 3485void 3486ctl_pool_free(struct ctl_io_pool *pool) 3487{ 3488 3489 if (pool == NULL) 3490 return; 3491 3492#ifdef IO_POOLS 3493 uma_zdestroy(pool->zone); 3494 free(pool, M_CTL); 3495#endif 3496} 3497 3498union ctl_io * 3499ctl_alloc_io(void *pool_ref) 3500{ 3501 union ctl_io *io; 3502#ifdef IO_POOLS 3503 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3504 3505 io = uma_zalloc(pool->zone, M_WAITOK); 3506#else 3507 io = uma_zalloc((uma_zone_t)pool_ref, M_WAITOK); 3508#endif 3509 if (io != NULL) 3510 io->io_hdr.pool = pool_ref; 3511 return (io); 3512} 3513 3514union ctl_io * 3515ctl_alloc_io_nowait(void *pool_ref) 3516{ 3517 union ctl_io *io; 3518#ifdef IO_POOLS 3519 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3520 3521 io = uma_zalloc(pool->zone, M_NOWAIT); 3522#else 3523 io = uma_zalloc((uma_zone_t)pool_ref, M_NOWAIT); 3524#endif 3525 if (io != NULL) 3526 io->io_hdr.pool = pool_ref; 3527 return (io); 3528} 3529 3530void 3531ctl_free_io(union ctl_io *io) 3532{ 3533#ifdef IO_POOLS 3534 struct ctl_io_pool *pool; 3535#endif 3536 3537 if (io == NULL) 3538 return; 3539 3540#ifdef IO_POOLS 3541 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3542 uma_zfree(pool->zone, io); 3543#else 3544 uma_zfree((uma_zone_t)io->io_hdr.pool, io); 3545#endif 3546} 3547 3548void 3549ctl_zero_io(union ctl_io *io) 3550{ 3551 void *pool_ref; 3552 3553 if (io == NULL) 3554 return; 3555 3556 /* 3557 * May need to preserve linked list pointers at some point too. 3558 */ 3559 pool_ref = io->io_hdr.pool; 3560 memset(io, 0, sizeof(*io)); 3561 io->io_hdr.pool = pool_ref; 3562} 3563 3564/* 3565 * This routine is currently used for internal copies of ctl_ios that need 3566 * to persist for some reason after we've already returned status to the 3567 * FETD. (Thus the flag set.) 3568 * 3569 * XXX XXX 3570 * Note that this makes a blind copy of all fields in the ctl_io, except 3571 * for the pool reference. This includes any memory that has been 3572 * allocated! That memory will no longer be valid after done has been 3573 * called, so this would be VERY DANGEROUS for command that actually does 3574 * any reads or writes. Right now (11/7/2005), this is only used for immediate 3575 * start and stop commands, which don't transfer any data, so this is not a 3576 * problem. If it is used for anything else, the caller would also need to 3577 * allocate data buffer space and this routine would need to be modified to 3578 * copy the data buffer(s) as well. 3579 */ 3580void 3581ctl_copy_io(union ctl_io *src, union ctl_io *dest) 3582{ 3583 void *pool_ref; 3584 3585 if ((src == NULL) 3586 || (dest == NULL)) 3587 return; 3588 3589 /* 3590 * May need to preserve linked list pointers at some point too. 3591 */ 3592 pool_ref = dest->io_hdr.pool; 3593 3594 memcpy(dest, src, MIN(sizeof(*src), sizeof(*dest))); 3595 3596 dest->io_hdr.pool = pool_ref; 3597 /* 3598 * We need to know that this is an internal copy, and doesn't need 3599 * to get passed back to the FETD that allocated it. 3600 */ 3601 dest->io_hdr.flags |= CTL_FLAG_INT_COPY; 3602} 3603 3604int 3605ctl_expand_number(const char *buf, uint64_t *num) 3606{ 3607 char *endptr; 3608 uint64_t number; 3609 unsigned shift; 3610 3611 number = strtoq(buf, &endptr, 0); 3612 3613 switch (tolower((unsigned char)*endptr)) { 3614 case 'e': 3615 shift = 60; 3616 break; 3617 case 'p': 3618 shift = 50; 3619 break; 3620 case 't': 3621 shift = 40; 3622 break; 3623 case 'g': 3624 shift = 30; 3625 break; 3626 case 'm': 3627 shift = 20; 3628 break; 3629 case 'k': 3630 shift = 10; 3631 break; 3632 case 'b': 3633 case '\0': /* No unit. */ 3634 *num = number; 3635 return (0); 3636 default: 3637 /* Unrecognized unit. */ 3638 return (-1); 3639 } 3640 3641 if ((number << shift) >> shift != number) { 3642 /* Overflow */ 3643 return (-1); 3644 } 3645 *num = number << shift; 3646 return (0); 3647} 3648 3649 3650/* 3651 * This routine could be used in the future to load default and/or saved 3652 * mode page parameters for a particuar lun. 3653 */ 3654static int 3655ctl_init_page_index(struct ctl_lun *lun) 3656{ 3657 int i; 3658 struct ctl_page_index *page_index; 3659 const char *value; 3660 uint64_t ival; 3661 3662 memcpy(&lun->mode_pages.index, page_index_template, 3663 sizeof(page_index_template)); 3664 3665 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 3666 3667 page_index = &lun->mode_pages.index[i]; 3668 /* 3669 * If this is a disk-only mode page, there's no point in 3670 * setting it up. For some pages, we have to have some 3671 * basic information about the disk in order to calculate the 3672 * mode page data. 3673 */ 3674 if ((lun->be_lun->lun_type != T_DIRECT) 3675 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 3676 continue; 3677 3678 switch (page_index->page_code & SMPH_PC_MASK) { 3679 case SMS_RW_ERROR_RECOVERY_PAGE: { 3680 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3681 panic("subpage is incorrect!"); 3682 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT], 3683 &rw_er_page_default, 3684 sizeof(rw_er_page_default)); 3685 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CHANGEABLE], 3686 &rw_er_page_changeable, 3687 sizeof(rw_er_page_changeable)); 3688 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_DEFAULT], 3689 &rw_er_page_default, 3690 sizeof(rw_er_page_default)); 3691 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_SAVED], 3692 &rw_er_page_default, 3693 sizeof(rw_er_page_default)); 3694 page_index->page_data = 3695 (uint8_t *)lun->mode_pages.rw_er_page; 3696 break; 3697 } 3698 case SMS_FORMAT_DEVICE_PAGE: { 3699 struct scsi_format_page *format_page; 3700 3701 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3702 panic("subpage is incorrect!"); 3703 3704 /* 3705 * Sectors per track are set above. Bytes per 3706 * sector need to be set here on a per-LUN basis. 3707 */ 3708 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 3709 &format_page_default, 3710 sizeof(format_page_default)); 3711 memcpy(&lun->mode_pages.format_page[ 3712 CTL_PAGE_CHANGEABLE], &format_page_changeable, 3713 sizeof(format_page_changeable)); 3714 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 3715 &format_page_default, 3716 sizeof(format_page_default)); 3717 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 3718 &format_page_default, 3719 sizeof(format_page_default)); 3720 3721 format_page = &lun->mode_pages.format_page[ 3722 CTL_PAGE_CURRENT]; 3723 scsi_ulto2b(lun->be_lun->blocksize, 3724 format_page->bytes_per_sector); 3725 3726 format_page = &lun->mode_pages.format_page[ 3727 CTL_PAGE_DEFAULT]; 3728 scsi_ulto2b(lun->be_lun->blocksize, 3729 format_page->bytes_per_sector); 3730 3731 format_page = &lun->mode_pages.format_page[ 3732 CTL_PAGE_SAVED]; 3733 scsi_ulto2b(lun->be_lun->blocksize, 3734 format_page->bytes_per_sector); 3735 3736 page_index->page_data = 3737 (uint8_t *)lun->mode_pages.format_page; 3738 break; 3739 } 3740 case SMS_RIGID_DISK_PAGE: { 3741 struct scsi_rigid_disk_page *rigid_disk_page; 3742 uint32_t sectors_per_cylinder; 3743 uint64_t cylinders; 3744#ifndef __XSCALE__ 3745 int shift; 3746#endif /* !__XSCALE__ */ 3747 3748 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3749 panic("invalid subpage value %d", 3750 page_index->subpage); 3751 3752 /* 3753 * Rotation rate and sectors per track are set 3754 * above. We calculate the cylinders here based on 3755 * capacity. Due to the number of heads and 3756 * sectors per track we're using, smaller arrays 3757 * may turn out to have 0 cylinders. Linux and 3758 * FreeBSD don't pay attention to these mode pages 3759 * to figure out capacity, but Solaris does. It 3760 * seems to deal with 0 cylinders just fine, and 3761 * works out a fake geometry based on the capacity. 3762 */ 3763 memcpy(&lun->mode_pages.rigid_disk_page[ 3764 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 3765 sizeof(rigid_disk_page_default)); 3766 memcpy(&lun->mode_pages.rigid_disk_page[ 3767 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 3768 sizeof(rigid_disk_page_changeable)); 3769 3770 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 3771 CTL_DEFAULT_HEADS; 3772 3773 /* 3774 * The divide method here will be more accurate, 3775 * probably, but results in floating point being 3776 * used in the kernel on i386 (__udivdi3()). On the 3777 * XScale, though, __udivdi3() is implemented in 3778 * software. 3779 * 3780 * The shift method for cylinder calculation is 3781 * accurate if sectors_per_cylinder is a power of 3782 * 2. Otherwise it might be slightly off -- you 3783 * might have a bit of a truncation problem. 3784 */ 3785#ifdef __XSCALE__ 3786 cylinders = (lun->be_lun->maxlba + 1) / 3787 sectors_per_cylinder; 3788#else 3789 for (shift = 31; shift > 0; shift--) { 3790 if (sectors_per_cylinder & (1 << shift)) 3791 break; 3792 } 3793 cylinders = (lun->be_lun->maxlba + 1) >> shift; 3794#endif 3795 3796 /* 3797 * We've basically got 3 bytes, or 24 bits for the 3798 * cylinder size in the mode page. If we're over, 3799 * just round down to 2^24. 3800 */ 3801 if (cylinders > 0xffffff) 3802 cylinders = 0xffffff; 3803 3804 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 3805 CTL_PAGE_DEFAULT]; 3806 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 3807 3808 if ((value = ctl_get_opt(&lun->be_lun->options, 3809 "rpm")) != NULL) { 3810 scsi_ulto2b(strtol(value, NULL, 0), 3811 rigid_disk_page->rotation_rate); 3812 } 3813 3814 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_CURRENT], 3815 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 3816 sizeof(rigid_disk_page_default)); 3817 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_SAVED], 3818 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 3819 sizeof(rigid_disk_page_default)); 3820 3821 page_index->page_data = 3822 (uint8_t *)lun->mode_pages.rigid_disk_page; 3823 break; 3824 } 3825 case SMS_CACHING_PAGE: { 3826 struct scsi_caching_page *caching_page; 3827 3828 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3829 panic("invalid subpage value %d", 3830 page_index->subpage); 3831 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 3832 &caching_page_default, 3833 sizeof(caching_page_default)); 3834 memcpy(&lun->mode_pages.caching_page[ 3835 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 3836 sizeof(caching_page_changeable)); 3837 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 3838 &caching_page_default, 3839 sizeof(caching_page_default)); 3840 caching_page = &lun->mode_pages.caching_page[ 3841 CTL_PAGE_SAVED]; 3842 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 3843 if (value != NULL && strcmp(value, "off") == 0) 3844 caching_page->flags1 &= ~SCP_WCE; 3845 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 3846 if (value != NULL && strcmp(value, "off") == 0) 3847 caching_page->flags1 |= SCP_RCD; 3848 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 3849 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 3850 sizeof(caching_page_default)); 3851 page_index->page_data = 3852 (uint8_t *)lun->mode_pages.caching_page; 3853 break; 3854 } 3855 case SMS_CONTROL_MODE_PAGE: { 3856 struct scsi_control_page *control_page; 3857 3858 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3859 panic("invalid subpage value %d", 3860 page_index->subpage); 3861 3862 memcpy(&lun->mode_pages.control_page[CTL_PAGE_DEFAULT], 3863 &control_page_default, 3864 sizeof(control_page_default)); 3865 memcpy(&lun->mode_pages.control_page[ 3866 CTL_PAGE_CHANGEABLE], &control_page_changeable, 3867 sizeof(control_page_changeable)); 3868 memcpy(&lun->mode_pages.control_page[CTL_PAGE_SAVED], 3869 &control_page_default, 3870 sizeof(control_page_default)); 3871 control_page = &lun->mode_pages.control_page[ 3872 CTL_PAGE_SAVED]; 3873 value = ctl_get_opt(&lun->be_lun->options, "reordering"); 3874 if (value != NULL && strcmp(value, "unrestricted") == 0) { 3875 control_page->queue_flags &= ~SCP_QUEUE_ALG_MASK; 3876 control_page->queue_flags |= SCP_QUEUE_ALG_UNRESTRICTED; 3877 } 3878 memcpy(&lun->mode_pages.control_page[CTL_PAGE_CURRENT], 3879 &lun->mode_pages.control_page[CTL_PAGE_SAVED], 3880 sizeof(control_page_default)); 3881 page_index->page_data = 3882 (uint8_t *)lun->mode_pages.control_page; 3883 break; 3884 3885 } 3886 case SMS_INFO_EXCEPTIONS_PAGE: { 3887 switch (page_index->subpage) { 3888 case SMS_SUBPAGE_PAGE_0: 3889 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_CURRENT], 3890 &ie_page_default, 3891 sizeof(ie_page_default)); 3892 memcpy(&lun->mode_pages.ie_page[ 3893 CTL_PAGE_CHANGEABLE], &ie_page_changeable, 3894 sizeof(ie_page_changeable)); 3895 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_DEFAULT], 3896 &ie_page_default, 3897 sizeof(ie_page_default)); 3898 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_SAVED], 3899 &ie_page_default, 3900 sizeof(ie_page_default)); 3901 page_index->page_data = 3902 (uint8_t *)lun->mode_pages.ie_page; 3903 break; 3904 case 0x02: { 3905 struct ctl_logical_block_provisioning_page *page; 3906 3907 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_DEFAULT], 3908 &lbp_page_default, 3909 sizeof(lbp_page_default)); 3910 memcpy(&lun->mode_pages.lbp_page[ 3911 CTL_PAGE_CHANGEABLE], &lbp_page_changeable, 3912 sizeof(lbp_page_changeable)); 3913 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 3914 &lbp_page_default, 3915 sizeof(lbp_page_default)); 3916 page = &lun->mode_pages.lbp_page[CTL_PAGE_SAVED]; 3917 value = ctl_get_opt(&lun->be_lun->options, 3918 "avail-threshold"); 3919 if (value != NULL && 3920 ctl_expand_number(value, &ival) == 0) { 3921 page->descr[0].flags |= SLBPPD_ENABLED | 3922 SLBPPD_ARMING_DEC; 3923 if (lun->be_lun->blocksize) 3924 ival /= lun->be_lun->blocksize; 3925 else 3926 ival /= 512; 3927 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 3928 page->descr[0].count); 3929 } 3930 value = ctl_get_opt(&lun->be_lun->options, 3931 "used-threshold"); 3932 if (value != NULL && 3933 ctl_expand_number(value, &ival) == 0) { 3934 page->descr[1].flags |= SLBPPD_ENABLED | 3935 SLBPPD_ARMING_INC; 3936 if (lun->be_lun->blocksize) 3937 ival /= lun->be_lun->blocksize; 3938 else 3939 ival /= 512; 3940 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 3941 page->descr[1].count); 3942 } 3943 value = ctl_get_opt(&lun->be_lun->options, 3944 "pool-avail-threshold"); 3945 if (value != NULL && 3946 ctl_expand_number(value, &ival) == 0) { 3947 page->descr[2].flags |= SLBPPD_ENABLED | 3948 SLBPPD_ARMING_DEC; 3949 if (lun->be_lun->blocksize) 3950 ival /= lun->be_lun->blocksize; 3951 else 3952 ival /= 512; 3953 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 3954 page->descr[2].count); 3955 } 3956 value = ctl_get_opt(&lun->be_lun->options, 3957 "pool-used-threshold"); 3958 if (value != NULL && 3959 ctl_expand_number(value, &ival) == 0) { 3960 page->descr[3].flags |= SLBPPD_ENABLED | 3961 SLBPPD_ARMING_INC; 3962 if (lun->be_lun->blocksize) 3963 ival /= lun->be_lun->blocksize; 3964 else 3965 ival /= 512; 3966 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 3967 page->descr[3].count); 3968 } 3969 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_CURRENT], 3970 &lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 3971 sizeof(lbp_page_default)); 3972 page_index->page_data = 3973 (uint8_t *)lun->mode_pages.lbp_page; 3974 }} 3975 break; 3976 } 3977 case SMS_VENDOR_SPECIFIC_PAGE:{ 3978 switch (page_index->subpage) { 3979 case DBGCNF_SUBPAGE_CODE: { 3980 struct copan_debugconf_subpage *current_page, 3981 *saved_page; 3982 3983 memcpy(&lun->mode_pages.debugconf_subpage[ 3984 CTL_PAGE_CURRENT], 3985 &debugconf_page_default, 3986 sizeof(debugconf_page_default)); 3987 memcpy(&lun->mode_pages.debugconf_subpage[ 3988 CTL_PAGE_CHANGEABLE], 3989 &debugconf_page_changeable, 3990 sizeof(debugconf_page_changeable)); 3991 memcpy(&lun->mode_pages.debugconf_subpage[ 3992 CTL_PAGE_DEFAULT], 3993 &debugconf_page_default, 3994 sizeof(debugconf_page_default)); 3995 memcpy(&lun->mode_pages.debugconf_subpage[ 3996 CTL_PAGE_SAVED], 3997 &debugconf_page_default, 3998 sizeof(debugconf_page_default)); 3999 page_index->page_data = 4000 (uint8_t *)lun->mode_pages.debugconf_subpage; 4001 4002 current_page = (struct copan_debugconf_subpage *) 4003 (page_index->page_data + 4004 (page_index->page_len * 4005 CTL_PAGE_CURRENT)); 4006 saved_page = (struct copan_debugconf_subpage *) 4007 (page_index->page_data + 4008 (page_index->page_len * 4009 CTL_PAGE_SAVED)); 4010 break; 4011 } 4012 default: 4013 panic("invalid subpage value %d", 4014 page_index->subpage); 4015 break; 4016 } 4017 break; 4018 } 4019 default: 4020 panic("invalid page value %d", 4021 page_index->page_code & SMPH_PC_MASK); 4022 break; 4023 } 4024 } 4025 4026 return (CTL_RETVAL_COMPLETE); 4027} 4028 4029static int 4030ctl_init_log_page_index(struct ctl_lun *lun) 4031{ 4032 struct ctl_page_index *page_index; 4033 int i, j, k, prev; 4034 4035 memcpy(&lun->log_pages.index, log_page_index_template, 4036 sizeof(log_page_index_template)); 4037 4038 prev = -1; 4039 for (i = 0, j = 0, k = 0; i < CTL_NUM_LOG_PAGES; i++) { 4040 4041 page_index = &lun->log_pages.index[i]; 4042 /* 4043 * If this is a disk-only mode page, there's no point in 4044 * setting it up. For some pages, we have to have some 4045 * basic information about the disk in order to calculate the 4046 * mode page data. 4047 */ 4048 if ((lun->be_lun->lun_type != T_DIRECT) 4049 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 4050 continue; 4051 4052 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING && 4053 lun->backend->lun_attr == NULL) 4054 continue; 4055 4056 if (page_index->page_code != prev) { 4057 lun->log_pages.pages_page[j] = page_index->page_code; 4058 prev = page_index->page_code; 4059 j++; 4060 } 4061 lun->log_pages.subpages_page[k*2] = page_index->page_code; 4062 lun->log_pages.subpages_page[k*2+1] = page_index->subpage; 4063 k++; 4064 } 4065 lun->log_pages.index[0].page_data = &lun->log_pages.pages_page[0]; 4066 lun->log_pages.index[0].page_len = j; 4067 lun->log_pages.index[1].page_data = &lun->log_pages.subpages_page[0]; 4068 lun->log_pages.index[1].page_len = k * 2; 4069 lun->log_pages.index[2].page_data = &lun->log_pages.lbp_page[0]; 4070 lun->log_pages.index[2].page_len = 12*CTL_NUM_LBP_PARAMS; 4071 lun->log_pages.index[3].page_data = (uint8_t *)&lun->log_pages.stat_page; 4072 lun->log_pages.index[3].page_len = sizeof(lun->log_pages.stat_page); 4073 4074 return (CTL_RETVAL_COMPLETE); 4075} 4076 4077static int 4078hex2bin(const char *str, uint8_t *buf, int buf_size) 4079{ 4080 int i; 4081 u_char c; 4082 4083 memset(buf, 0, buf_size); 4084 while (isspace(str[0])) 4085 str++; 4086 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) 4087 str += 2; 4088 buf_size *= 2; 4089 for (i = 0; str[i] != 0 && i < buf_size; i++) { 4090 c = str[i]; 4091 if (isdigit(c)) 4092 c -= '0'; 4093 else if (isalpha(c)) 4094 c -= isupper(c) ? 'A' - 10 : 'a' - 10; 4095 else 4096 break; 4097 if (c >= 16) 4098 break; 4099 if ((i & 1) == 0) 4100 buf[i / 2] |= (c << 4); 4101 else 4102 buf[i / 2] |= c; 4103 } 4104 return ((i + 1) / 2); 4105} 4106 4107/* 4108 * LUN allocation. 4109 * 4110 * Requirements: 4111 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4112 * wants us to allocate the LUN and he can block. 4113 * - ctl_softc is always set 4114 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4115 * 4116 * Returns 0 for success, non-zero (errno) for failure. 4117 */ 4118static int 4119ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4120 struct ctl_be_lun *const be_lun) 4121{ 4122 struct ctl_lun *nlun, *lun; 4123 struct scsi_vpd_id_descriptor *desc; 4124 struct scsi_vpd_id_t10 *t10id; 4125 const char *eui, *naa, *scsiname, *vendor; 4126 int lun_number, i, lun_malloced; 4127 int devidlen, idlen1, idlen2 = 0, len; 4128 4129 if (be_lun == NULL) 4130 return (EINVAL); 4131 4132 /* 4133 * We currently only support Direct Access or Processor LUN types. 4134 */ 4135 switch (be_lun->lun_type) { 4136 case T_DIRECT: 4137 break; 4138 case T_PROCESSOR: 4139 break; 4140 case T_SEQUENTIAL: 4141 case T_CHANGER: 4142 default: 4143 be_lun->lun_config_status(be_lun->be_lun, 4144 CTL_LUN_CONFIG_FAILURE); 4145 break; 4146 } 4147 if (ctl_lun == NULL) { 4148 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4149 lun_malloced = 1; 4150 } else { 4151 lun_malloced = 0; 4152 lun = ctl_lun; 4153 } 4154 4155 memset(lun, 0, sizeof(*lun)); 4156 if (lun_malloced) 4157 lun->flags = CTL_LUN_MALLOCED; 4158 4159 /* Generate LUN ID. */ 4160 devidlen = max(CTL_DEVID_MIN_LEN, 4161 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4162 idlen1 = sizeof(*t10id) + devidlen; 4163 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4164 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4165 if (scsiname != NULL) { 4166 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4167 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4168 } 4169 eui = ctl_get_opt(&be_lun->options, "eui"); 4170 if (eui != NULL) { 4171 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4172 } 4173 naa = ctl_get_opt(&be_lun->options, "naa"); 4174 if (naa != NULL) { 4175 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4176 } 4177 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4178 M_CTL, M_WAITOK | M_ZERO); 4179 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4180 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4181 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4182 desc->length = idlen1; 4183 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4184 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4185 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4186 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4187 } else { 4188 strncpy(t10id->vendor, vendor, 4189 min(sizeof(t10id->vendor), strlen(vendor))); 4190 } 4191 strncpy((char *)t10id->vendor_spec_id, 4192 (char *)be_lun->device_id, devidlen); 4193 if (scsiname != NULL) { 4194 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4195 desc->length); 4196 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4197 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4198 SVPD_ID_TYPE_SCSI_NAME; 4199 desc->length = idlen2; 4200 strlcpy(desc->identifier, scsiname, idlen2); 4201 } 4202 if (eui != NULL) { 4203 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4204 desc->length); 4205 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4206 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4207 SVPD_ID_TYPE_EUI64; 4208 desc->length = hex2bin(eui, desc->identifier, 16); 4209 desc->length = desc->length > 12 ? 16 : 4210 (desc->length > 8 ? 12 : 8); 4211 len -= 16 - desc->length; 4212 } 4213 if (naa != NULL) { 4214 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4215 desc->length); 4216 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4217 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4218 SVPD_ID_TYPE_NAA; 4219 desc->length = hex2bin(naa, desc->identifier, 16); 4220 desc->length = desc->length > 8 ? 16 : 8; 4221 len -= 16 - desc->length; 4222 } 4223 lun->lun_devid->len = len; 4224 4225 mtx_lock(&ctl_softc->ctl_lock); 4226 /* 4227 * See if the caller requested a particular LUN number. If so, see 4228 * if it is available. Otherwise, allocate the first available LUN. 4229 */ 4230 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4231 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4232 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4233 mtx_unlock(&ctl_softc->ctl_lock); 4234 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4235 printf("ctl: requested LUN ID %d is higher " 4236 "than CTL_MAX_LUNS - 1 (%d)\n", 4237 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4238 } else { 4239 /* 4240 * XXX KDM return an error, or just assign 4241 * another LUN ID in this case?? 4242 */ 4243 printf("ctl: requested LUN ID %d is already " 4244 "in use\n", be_lun->req_lun_id); 4245 } 4246 if (lun->flags & CTL_LUN_MALLOCED) 4247 free(lun, M_CTL); 4248 be_lun->lun_config_status(be_lun->be_lun, 4249 CTL_LUN_CONFIG_FAILURE); 4250 return (ENOSPC); 4251 } 4252 lun_number = be_lun->req_lun_id; 4253 } else { 4254 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, 0, CTL_MAX_LUNS); 4255 if (lun_number == -1) { 4256 mtx_unlock(&ctl_softc->ctl_lock); 4257 printf("ctl: can't allocate LUN, out of LUNs\n"); 4258 if (lun->flags & CTL_LUN_MALLOCED) 4259 free(lun, M_CTL); 4260 be_lun->lun_config_status(be_lun->be_lun, 4261 CTL_LUN_CONFIG_FAILURE); 4262 return (ENOSPC); 4263 } 4264 } 4265 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4266 4267 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4268 lun->lun = lun_number; 4269 lun->be_lun = be_lun; 4270 /* 4271 * The processor LUN is always enabled. Disk LUNs come on line 4272 * disabled, and must be enabled by the backend. 4273 */ 4274 lun->flags |= CTL_LUN_DISABLED; 4275 lun->backend = be_lun->be; 4276 be_lun->ctl_lun = lun; 4277 be_lun->lun_id = lun_number; 4278 atomic_add_int(&be_lun->be->num_luns, 1); 4279 if (be_lun->flags & CTL_LUN_FLAG_OFFLINE) 4280 lun->flags |= CTL_LUN_OFFLINE; 4281 4282 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4283 lun->flags |= CTL_LUN_STOPPED; 4284 4285 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4286 lun->flags |= CTL_LUN_INOPERABLE; 4287 4288 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4289 lun->flags |= CTL_LUN_PRIMARY_SC; 4290 4291 lun->ctl_softc = ctl_softc; 4292#ifdef CTL_TIME_IO 4293 lun->last_busy = getsbinuptime(); 4294#endif 4295 TAILQ_INIT(&lun->ooa_queue); 4296 TAILQ_INIT(&lun->blocked_queue); 4297 STAILQ_INIT(&lun->error_list); 4298 ctl_tpc_lun_init(lun); 4299 4300 /* 4301 * Initialize the mode and log page index. 4302 */ 4303 ctl_init_page_index(lun); 4304 ctl_init_log_page_index(lun); 4305 4306 /* 4307 * Now, before we insert this lun on the lun list, set the lun 4308 * inventory changed UA for all other luns. 4309 */ 4310 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4311 mtx_lock(&nlun->lun_lock); 4312 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4313 mtx_unlock(&nlun->lun_lock); 4314 } 4315 4316 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4317 4318 ctl_softc->ctl_luns[lun_number] = lun; 4319 4320 ctl_softc->num_luns++; 4321 4322 /* Setup statistics gathering */ 4323 lun->stats.device_type = be_lun->lun_type; 4324 lun->stats.lun_number = lun_number; 4325 if (lun->stats.device_type == T_DIRECT) 4326 lun->stats.blocksize = be_lun->blocksize; 4327 else 4328 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4329 for (i = 0;i < CTL_MAX_PORTS;i++) 4330 lun->stats.ports[i].targ_port = i; 4331 4332 mtx_unlock(&ctl_softc->ctl_lock); 4333 4334 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4335 return (0); 4336} 4337 4338/* 4339 * Delete a LUN. 4340 * Assumptions: 4341 * - LUN has already been marked invalid and any pending I/O has been taken 4342 * care of. 4343 */ 4344static int 4345ctl_free_lun(struct ctl_lun *lun) 4346{ 4347 struct ctl_softc *softc; 4348 struct ctl_lun *nlun; 4349 int i; 4350 4351 softc = lun->ctl_softc; 4352 4353 mtx_assert(&softc->ctl_lock, MA_OWNED); 4354 4355 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4356 4357 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4358 4359 softc->ctl_luns[lun->lun] = NULL; 4360 4361 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4362 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4363 4364 softc->num_luns--; 4365 4366 /* 4367 * Tell the backend to free resources, if this LUN has a backend. 4368 */ 4369 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4370 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4371 4372 ctl_tpc_lun_shutdown(lun); 4373 mtx_destroy(&lun->lun_lock); 4374 free(lun->lun_devid, M_CTL); 4375 for (i = 0; i < CTL_MAX_PORTS; i++) 4376 free(lun->pending_ua[i], M_CTL); 4377 for (i = 0; i < CTL_MAX_PORTS; i++) 4378 free(lun->pr_keys[i], M_CTL); 4379 free(lun->write_buffer, M_CTL); 4380 if (lun->flags & CTL_LUN_MALLOCED) 4381 free(lun, M_CTL); 4382 4383 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4384 mtx_lock(&nlun->lun_lock); 4385 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4386 mtx_unlock(&nlun->lun_lock); 4387 } 4388 4389 return (0); 4390} 4391 4392static void 4393ctl_create_lun(struct ctl_be_lun *be_lun) 4394{ 4395 struct ctl_softc *softc; 4396 4397 softc = control_softc; 4398 4399 /* 4400 * ctl_alloc_lun() should handle all potential failure cases. 4401 */ 4402 ctl_alloc_lun(softc, NULL, be_lun); 4403} 4404 4405int 4406ctl_add_lun(struct ctl_be_lun *be_lun) 4407{ 4408 struct ctl_softc *softc = control_softc; 4409 4410 mtx_lock(&softc->ctl_lock); 4411 STAILQ_INSERT_TAIL(&softc->pending_lun_queue, be_lun, links); 4412 mtx_unlock(&softc->ctl_lock); 4413 wakeup(&softc->pending_lun_queue); 4414 4415 return (0); 4416} 4417 4418int 4419ctl_enable_lun(struct ctl_be_lun *be_lun) 4420{ 4421 struct ctl_softc *softc; 4422 struct ctl_port *port, *nport; 4423 struct ctl_lun *lun; 4424 int retval; 4425 4426 lun = (struct ctl_lun *)be_lun->ctl_lun; 4427 softc = lun->ctl_softc; 4428 4429 mtx_lock(&softc->ctl_lock); 4430 mtx_lock(&lun->lun_lock); 4431 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4432 /* 4433 * eh? Why did we get called if the LUN is already 4434 * enabled? 4435 */ 4436 mtx_unlock(&lun->lun_lock); 4437 mtx_unlock(&softc->ctl_lock); 4438 return (0); 4439 } 4440 lun->flags &= ~CTL_LUN_DISABLED; 4441 mtx_unlock(&lun->lun_lock); 4442 4443 for (port = STAILQ_FIRST(&softc->port_list); port != NULL; port = nport) { 4444 nport = STAILQ_NEXT(port, links); 4445 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4446 port->lun_map != NULL || port->lun_enable == NULL) 4447 continue; 4448 4449 /* 4450 * Drop the lock while we call the FETD's enable routine. 4451 * This can lead to a callback into CTL (at least in the 4452 * case of the internal initiator frontend. 4453 */ 4454 mtx_unlock(&softc->ctl_lock); 4455 retval = port->lun_enable(port->targ_lun_arg, lun->lun); 4456 mtx_lock(&softc->ctl_lock); 4457 if (retval != 0) { 4458 printf("%s: FETD %s port %d returned error " 4459 "%d for lun_enable on lun %jd\n", 4460 __func__, port->port_name, port->targ_port, 4461 retval, (intmax_t)lun->lun); 4462 } 4463 } 4464 4465 mtx_unlock(&softc->ctl_lock); 4466 ctl_isc_announce_lun(lun); 4467 4468 return (0); 4469} 4470 4471int 4472ctl_disable_lun(struct ctl_be_lun *be_lun) 4473{ 4474 struct ctl_softc *softc; 4475 struct ctl_port *port; 4476 struct ctl_lun *lun; 4477 int retval; 4478 4479 lun = (struct ctl_lun *)be_lun->ctl_lun; 4480 softc = lun->ctl_softc; 4481 4482 mtx_lock(&softc->ctl_lock); 4483 mtx_lock(&lun->lun_lock); 4484 if (lun->flags & CTL_LUN_DISABLED) { 4485 mtx_unlock(&lun->lun_lock); 4486 mtx_unlock(&softc->ctl_lock); 4487 return (0); 4488 } 4489 lun->flags |= CTL_LUN_DISABLED; 4490 mtx_unlock(&lun->lun_lock); 4491 4492 STAILQ_FOREACH(port, &softc->port_list, links) { 4493 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4494 port->lun_map != NULL || port->lun_disable == NULL) 4495 continue; 4496 4497 /* 4498 * Drop the lock before we call the frontend's disable 4499 * routine, to avoid lock order reversals. 4500 * 4501 * XXX KDM what happens if the frontend list changes while 4502 * we're traversing it? It's unlikely, but should be handled. 4503 */ 4504 mtx_unlock(&softc->ctl_lock); 4505 retval = port->lun_disable(port->targ_lun_arg, lun->lun); 4506 mtx_lock(&softc->ctl_lock); 4507 if (retval != 0) { 4508 printf("%s: FETD %s port %d returned error " 4509 "%d for lun_disable on lun %jd\n", 4510 __func__, port->port_name, port->targ_port, 4511 retval, (intmax_t)lun->lun); 4512 } 4513 } 4514 4515 mtx_unlock(&softc->ctl_lock); 4516 ctl_isc_announce_lun(lun); 4517 4518 return (0); 4519} 4520 4521int 4522ctl_start_lun(struct ctl_be_lun *be_lun) 4523{ 4524 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4525 4526 mtx_lock(&lun->lun_lock); 4527 lun->flags &= ~CTL_LUN_STOPPED; 4528 mtx_unlock(&lun->lun_lock); 4529 return (0); 4530} 4531 4532int 4533ctl_stop_lun(struct ctl_be_lun *be_lun) 4534{ 4535 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4536 4537 mtx_lock(&lun->lun_lock); 4538 lun->flags |= CTL_LUN_STOPPED; 4539 mtx_unlock(&lun->lun_lock); 4540 return (0); 4541} 4542 4543int 4544ctl_lun_offline(struct ctl_be_lun *be_lun) 4545{ 4546 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4547 4548 mtx_lock(&lun->lun_lock); 4549 lun->flags |= CTL_LUN_OFFLINE; 4550 mtx_unlock(&lun->lun_lock); 4551 return (0); 4552} 4553 4554int 4555ctl_lun_online(struct ctl_be_lun *be_lun) 4556{ 4557 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4558 4559 mtx_lock(&lun->lun_lock); 4560 lun->flags &= ~CTL_LUN_OFFLINE; 4561 mtx_unlock(&lun->lun_lock); 4562 return (0); 4563} 4564 4565int 4566ctl_lun_primary(struct ctl_be_lun *be_lun) 4567{ 4568 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4569 4570 mtx_lock(&lun->lun_lock); 4571 lun->flags |= CTL_LUN_PRIMARY_SC; 4572 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4573 mtx_unlock(&lun->lun_lock); 4574 ctl_isc_announce_lun(lun); 4575 return (0); 4576} 4577 4578int 4579ctl_lun_secondary(struct ctl_be_lun *be_lun) 4580{ 4581 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4582 4583 mtx_lock(&lun->lun_lock); 4584 lun->flags &= ~CTL_LUN_PRIMARY_SC; 4585 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4586 mtx_unlock(&lun->lun_lock); 4587 ctl_isc_announce_lun(lun); 4588 return (0); 4589} 4590 4591int 4592ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4593{ 4594 struct ctl_softc *softc; 4595 struct ctl_lun *lun; 4596 4597 lun = (struct ctl_lun *)be_lun->ctl_lun; 4598 softc = lun->ctl_softc; 4599 4600 mtx_lock(&lun->lun_lock); 4601 4602 /* 4603 * The LUN needs to be disabled before it can be marked invalid. 4604 */ 4605 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4606 mtx_unlock(&lun->lun_lock); 4607 return (-1); 4608 } 4609 /* 4610 * Mark the LUN invalid. 4611 */ 4612 lun->flags |= CTL_LUN_INVALID; 4613 4614 /* 4615 * If there is nothing in the OOA queue, go ahead and free the LUN. 4616 * If we have something in the OOA queue, we'll free it when the 4617 * last I/O completes. 4618 */ 4619 if (TAILQ_EMPTY(&lun->ooa_queue)) { 4620 mtx_unlock(&lun->lun_lock); 4621 mtx_lock(&softc->ctl_lock); 4622 ctl_free_lun(lun); 4623 mtx_unlock(&softc->ctl_lock); 4624 } else 4625 mtx_unlock(&lun->lun_lock); 4626 4627 return (0); 4628} 4629 4630int 4631ctl_lun_inoperable(struct ctl_be_lun *be_lun) 4632{ 4633 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4634 4635 mtx_lock(&lun->lun_lock); 4636 lun->flags |= CTL_LUN_INOPERABLE; 4637 mtx_unlock(&lun->lun_lock); 4638 return (0); 4639} 4640 4641int 4642ctl_lun_operable(struct ctl_be_lun *be_lun) 4643{ 4644 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4645 4646 mtx_lock(&lun->lun_lock); 4647 lun->flags &= ~CTL_LUN_INOPERABLE; 4648 mtx_unlock(&lun->lun_lock); 4649 return (0); 4650} 4651 4652void 4653ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 4654{ 4655 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4656 union ctl_ha_msg msg; 4657 4658 mtx_lock(&lun->lun_lock); 4659 ctl_est_ua_all(lun, -1, CTL_UA_CAPACITY_CHANGED); 4660 mtx_unlock(&lun->lun_lock); 4661 if (lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 4662 /* Send msg to other side. */ 4663 bzero(&msg.ua, sizeof(msg.ua)); 4664 msg.hdr.msg_type = CTL_MSG_UA; 4665 msg.hdr.nexus.initid = -1; 4666 msg.hdr.nexus.targ_port = -1; 4667 msg.hdr.nexus.targ_lun = lun->lun; 4668 msg.hdr.nexus.targ_mapped_lun = lun->lun; 4669 msg.ua.ua_all = 1; 4670 msg.ua.ua_set = 1; 4671 msg.ua.ua_type = CTL_UA_CAPACITY_CHANGED; 4672 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 4673 M_WAITOK); 4674 } 4675} 4676 4677/* 4678 * Backend "memory move is complete" callback for requests that never 4679 * make it down to say RAIDCore's configuration code. 4680 */ 4681int 4682ctl_config_move_done(union ctl_io *io) 4683{ 4684 int retval; 4685 4686 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 4687 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI, 4688 ("Config I/O type isn't CTL_IO_SCSI (%d)!", io->io_hdr.io_type)); 4689 4690 if ((io->io_hdr.port_status != 0) && 4691 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 4692 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 4693 /* 4694 * For hardware error sense keys, the sense key 4695 * specific value is defined to be a retry count, 4696 * but we use it to pass back an internal FETD 4697 * error code. XXX KDM Hopefully the FETD is only 4698 * using 16 bits for an error code, since that's 4699 * all the space we have in the sks field. 4700 */ 4701 ctl_set_internal_failure(&io->scsiio, 4702 /*sks_valid*/ 1, 4703 /*retry_count*/ 4704 io->io_hdr.port_status); 4705 } 4706 4707 if (ctl_debug & CTL_DEBUG_CDB_DATA) 4708 ctl_data_print(io); 4709 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) || 4710 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 4711 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) || 4712 ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 4713 /* 4714 * XXX KDM just assuming a single pointer here, and not a 4715 * S/G list. If we start using S/G lists for config data, 4716 * we'll need to know how to clean them up here as well. 4717 */ 4718 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 4719 free(io->scsiio.kern_data_ptr, M_CTL); 4720 ctl_done(io); 4721 retval = CTL_RETVAL_COMPLETE; 4722 } else { 4723 /* 4724 * XXX KDM now we need to continue data movement. Some 4725 * options: 4726 * - call ctl_scsiio() again? We don't do this for data 4727 * writes, because for those at least we know ahead of 4728 * time where the write will go and how long it is. For 4729 * config writes, though, that information is largely 4730 * contained within the write itself, thus we need to 4731 * parse out the data again. 4732 * 4733 * - Call some other function once the data is in? 4734 */ 4735 4736 /* 4737 * XXX KDM call ctl_scsiio() again for now, and check flag 4738 * bits to see whether we're allocated or not. 4739 */ 4740 retval = ctl_scsiio(&io->scsiio); 4741 } 4742 return (retval); 4743} 4744 4745/* 4746 * This gets called by a backend driver when it is done with a 4747 * data_submit method. 4748 */ 4749void 4750ctl_data_submit_done(union ctl_io *io) 4751{ 4752 /* 4753 * If the IO_CONT flag is set, we need to call the supplied 4754 * function to continue processing the I/O, instead of completing 4755 * the I/O just yet. 4756 * 4757 * If there is an error, though, we don't want to keep processing. 4758 * Instead, just send status back to the initiator. 4759 */ 4760 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 4761 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 4762 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 4763 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 4764 io->scsiio.io_cont(io); 4765 return; 4766 } 4767 ctl_done(io); 4768} 4769 4770/* 4771 * This gets called by a backend driver when it is done with a 4772 * configuration write. 4773 */ 4774void 4775ctl_config_write_done(union ctl_io *io) 4776{ 4777 uint8_t *buf; 4778 4779 /* 4780 * If the IO_CONT flag is set, we need to call the supplied 4781 * function to continue processing the I/O, instead of completing 4782 * the I/O just yet. 4783 * 4784 * If there is an error, though, we don't want to keep processing. 4785 * Instead, just send status back to the initiator. 4786 */ 4787 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 4788 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 4789 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 4790 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 4791 io->scsiio.io_cont(io); 4792 return; 4793 } 4794 /* 4795 * Since a configuration write can be done for commands that actually 4796 * have data allocated, like write buffer, and commands that have 4797 * no data, like start/stop unit, we need to check here. 4798 */ 4799 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 4800 buf = io->scsiio.kern_data_ptr; 4801 else 4802 buf = NULL; 4803 ctl_done(io); 4804 if (buf) 4805 free(buf, M_CTL); 4806} 4807 4808void 4809ctl_config_read_done(union ctl_io *io) 4810{ 4811 uint8_t *buf; 4812 4813 /* 4814 * If there is some error -- we are done, skip data transfer. 4815 */ 4816 if ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0 || 4817 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 4818 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) { 4819 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 4820 buf = io->scsiio.kern_data_ptr; 4821 else 4822 buf = NULL; 4823 ctl_done(io); 4824 if (buf) 4825 free(buf, M_CTL); 4826 return; 4827 } 4828 4829 /* 4830 * If the IO_CONT flag is set, we need to call the supplied 4831 * function to continue processing the I/O, instead of completing 4832 * the I/O just yet. 4833 */ 4834 if (io->io_hdr.flags & CTL_FLAG_IO_CONT) { 4835 io->scsiio.io_cont(io); 4836 return; 4837 } 4838 4839 ctl_datamove(io); 4840} 4841 4842/* 4843 * SCSI release command. 4844 */ 4845int 4846ctl_scsi_release(struct ctl_scsiio *ctsio) 4847{ 4848 int length, longid, thirdparty_id, resv_id; 4849 struct ctl_lun *lun; 4850 uint32_t residx; 4851 4852 length = 0; 4853 resv_id = 0; 4854 4855 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 4856 4857 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 4858 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 4859 4860 switch (ctsio->cdb[0]) { 4861 case RELEASE_10: { 4862 struct scsi_release_10 *cdb; 4863 4864 cdb = (struct scsi_release_10 *)ctsio->cdb; 4865 4866 if (cdb->byte2 & SR10_LONGID) 4867 longid = 1; 4868 else 4869 thirdparty_id = cdb->thirdparty_id; 4870 4871 resv_id = cdb->resv_id; 4872 length = scsi_2btoul(cdb->length); 4873 break; 4874 } 4875 } 4876 4877 4878 /* 4879 * XXX KDM right now, we only support LUN reservation. We don't 4880 * support 3rd party reservations, or extent reservations, which 4881 * might actually need the parameter list. If we've gotten this 4882 * far, we've got a LUN reservation. Anything else got kicked out 4883 * above. So, according to SPC, ignore the length. 4884 */ 4885 length = 0; 4886 4887 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 4888 && (length > 0)) { 4889 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 4890 ctsio->kern_data_len = length; 4891 ctsio->kern_total_len = length; 4892 ctsio->kern_data_resid = 0; 4893 ctsio->kern_rel_offset = 0; 4894 ctsio->kern_sg_entries = 0; 4895 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 4896 ctsio->be_move_done = ctl_config_move_done; 4897 ctl_datamove((union ctl_io *)ctsio); 4898 4899 return (CTL_RETVAL_COMPLETE); 4900 } 4901 4902 if (length > 0) 4903 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 4904 4905 mtx_lock(&lun->lun_lock); 4906 4907 /* 4908 * According to SPC, it is not an error for an intiator to attempt 4909 * to release a reservation on a LUN that isn't reserved, or that 4910 * is reserved by another initiator. The reservation can only be 4911 * released, though, by the initiator who made it or by one of 4912 * several reset type events. 4913 */ 4914 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 4915 lun->flags &= ~CTL_LUN_RESERVED; 4916 4917 mtx_unlock(&lun->lun_lock); 4918 4919 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 4920 free(ctsio->kern_data_ptr, M_CTL); 4921 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 4922 } 4923 4924 ctl_set_success(ctsio); 4925 ctl_done((union ctl_io *)ctsio); 4926 return (CTL_RETVAL_COMPLETE); 4927} 4928 4929int 4930ctl_scsi_reserve(struct ctl_scsiio *ctsio) 4931{ 4932 int extent, thirdparty, longid; 4933 int resv_id, length; 4934 uint64_t thirdparty_id; 4935 struct ctl_lun *lun; 4936 uint32_t residx; 4937 4938 extent = 0; 4939 thirdparty = 0; 4940 longid = 0; 4941 resv_id = 0; 4942 length = 0; 4943 thirdparty_id = 0; 4944 4945 CTL_DEBUG_PRINT(("ctl_reserve\n")); 4946 4947 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 4948 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 4949 4950 switch (ctsio->cdb[0]) { 4951 case RESERVE_10: { 4952 struct scsi_reserve_10 *cdb; 4953 4954 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 4955 4956 if (cdb->byte2 & SR10_LONGID) 4957 longid = 1; 4958 else 4959 thirdparty_id = cdb->thirdparty_id; 4960 4961 resv_id = cdb->resv_id; 4962 length = scsi_2btoul(cdb->length); 4963 break; 4964 } 4965 } 4966 4967 /* 4968 * XXX KDM right now, we only support LUN reservation. We don't 4969 * support 3rd party reservations, or extent reservations, which 4970 * might actually need the parameter list. If we've gotten this 4971 * far, we've got a LUN reservation. Anything else got kicked out 4972 * above. So, according to SPC, ignore the length. 4973 */ 4974 length = 0; 4975 4976 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 4977 && (length > 0)) { 4978 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 4979 ctsio->kern_data_len = length; 4980 ctsio->kern_total_len = length; 4981 ctsio->kern_data_resid = 0; 4982 ctsio->kern_rel_offset = 0; 4983 ctsio->kern_sg_entries = 0; 4984 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 4985 ctsio->be_move_done = ctl_config_move_done; 4986 ctl_datamove((union ctl_io *)ctsio); 4987 4988 return (CTL_RETVAL_COMPLETE); 4989 } 4990 4991 if (length > 0) 4992 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 4993 4994 mtx_lock(&lun->lun_lock); 4995 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 4996 ctl_set_reservation_conflict(ctsio); 4997 goto bailout; 4998 } 4999 5000 lun->flags |= CTL_LUN_RESERVED; 5001 lun->res_idx = residx; 5002 5003 ctl_set_success(ctsio); 5004 5005bailout: 5006 mtx_unlock(&lun->lun_lock); 5007 5008 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5009 free(ctsio->kern_data_ptr, M_CTL); 5010 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5011 } 5012 5013 ctl_done((union ctl_io *)ctsio); 5014 return (CTL_RETVAL_COMPLETE); 5015} 5016 5017int 5018ctl_start_stop(struct ctl_scsiio *ctsio) 5019{ 5020 struct scsi_start_stop_unit *cdb; 5021 struct ctl_lun *lun; 5022 int retval; 5023 5024 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5025 5026 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5027 retval = 0; 5028 5029 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5030 5031 /* 5032 * XXX KDM 5033 * We don't support the immediate bit on a stop unit. In order to 5034 * do that, we would need to code up a way to know that a stop is 5035 * pending, and hold off any new commands until it completes, one 5036 * way or another. Then we could accept or reject those commands 5037 * depending on its status. We would almost need to do the reverse 5038 * of what we do below for an immediate start -- return the copy of 5039 * the ctl_io to the FETD with status to send to the host (and to 5040 * free the copy!) and then free the original I/O once the stop 5041 * actually completes. That way, the OOA queue mechanism can work 5042 * to block commands that shouldn't proceed. Another alternative 5043 * would be to put the copy in the queue in place of the original, 5044 * and return the original back to the caller. That could be 5045 * slightly safer.. 5046 */ 5047 if ((cdb->byte2 & SSS_IMMED) 5048 && ((cdb->how & SSS_START) == 0)) { 5049 ctl_set_invalid_field(ctsio, 5050 /*sks_valid*/ 1, 5051 /*command*/ 1, 5052 /*field*/ 1, 5053 /*bit_valid*/ 1, 5054 /*bit*/ 0); 5055 ctl_done((union ctl_io *)ctsio); 5056 return (CTL_RETVAL_COMPLETE); 5057 } 5058 5059 if ((lun->flags & CTL_LUN_PR_RESERVED) 5060 && ((cdb->how & SSS_START)==0)) { 5061 uint32_t residx; 5062 5063 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5064 if (ctl_get_prkey(lun, residx) == 0 5065 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5066 5067 ctl_set_reservation_conflict(ctsio); 5068 ctl_done((union ctl_io *)ctsio); 5069 return (CTL_RETVAL_COMPLETE); 5070 } 5071 } 5072 5073 /* 5074 * If there is no backend on this device, we can't start or stop 5075 * it. In theory we shouldn't get any start/stop commands in the 5076 * first place at this level if the LUN doesn't have a backend. 5077 * That should get stopped by the command decode code. 5078 */ 5079 if (lun->backend == NULL) { 5080 ctl_set_invalid_opcode(ctsio); 5081 ctl_done((union ctl_io *)ctsio); 5082 return (CTL_RETVAL_COMPLETE); 5083 } 5084 5085 /* 5086 * XXX KDM Copan-specific offline behavior. 5087 * Figure out a reasonable way to port this? 5088 */ 5089#ifdef NEEDTOPORT 5090 mtx_lock(&lun->lun_lock); 5091 5092 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5093 && (lun->flags & CTL_LUN_OFFLINE)) { 5094 /* 5095 * If the LUN is offline, and the on/offline bit isn't set, 5096 * reject the start or stop. Otherwise, let it through. 5097 */ 5098 mtx_unlock(&lun->lun_lock); 5099 ctl_set_lun_not_ready(ctsio); 5100 ctl_done((union ctl_io *)ctsio); 5101 } else { 5102 mtx_unlock(&lun->lun_lock); 5103#endif /* NEEDTOPORT */ 5104 /* 5105 * This could be a start or a stop when we're online, 5106 * or a stop/offline or start/online. A start or stop when 5107 * we're offline is covered in the case above. 5108 */ 5109 /* 5110 * In the non-immediate case, we send the request to 5111 * the backend and return status to the user when 5112 * it is done. 5113 * 5114 * In the immediate case, we allocate a new ctl_io 5115 * to hold a copy of the request, and send that to 5116 * the backend. We then set good status on the 5117 * user's request and return it immediately. 5118 */ 5119 if (cdb->byte2 & SSS_IMMED) { 5120 union ctl_io *new_io; 5121 5122 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5123 ctl_copy_io((union ctl_io *)ctsio, new_io); 5124 retval = lun->backend->config_write(new_io); 5125 ctl_set_success(ctsio); 5126 ctl_done((union ctl_io *)ctsio); 5127 } else { 5128 retval = lun->backend->config_write( 5129 (union ctl_io *)ctsio); 5130 } 5131#ifdef NEEDTOPORT 5132 } 5133#endif 5134 return (retval); 5135} 5136 5137/* 5138 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5139 * we don't really do anything with the LBA and length fields if the user 5140 * passes them in. Instead we'll just flush out the cache for the entire 5141 * LUN. 5142 */ 5143int 5144ctl_sync_cache(struct ctl_scsiio *ctsio) 5145{ 5146 struct ctl_lun *lun; 5147 struct ctl_softc *softc; 5148 struct ctl_lba_len_flags *lbalen; 5149 uint64_t starting_lba; 5150 uint32_t block_count; 5151 int retval; 5152 uint8_t byte2; 5153 5154 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5155 5156 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5157 softc = lun->ctl_softc; 5158 retval = 0; 5159 5160 switch (ctsio->cdb[0]) { 5161 case SYNCHRONIZE_CACHE: { 5162 struct scsi_sync_cache *cdb; 5163 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5164 5165 starting_lba = scsi_4btoul(cdb->begin_lba); 5166 block_count = scsi_2btoul(cdb->lb_count); 5167 byte2 = cdb->byte2; 5168 break; 5169 } 5170 case SYNCHRONIZE_CACHE_16: { 5171 struct scsi_sync_cache_16 *cdb; 5172 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5173 5174 starting_lba = scsi_8btou64(cdb->begin_lba); 5175 block_count = scsi_4btoul(cdb->lb_count); 5176 byte2 = cdb->byte2; 5177 break; 5178 } 5179 default: 5180 ctl_set_invalid_opcode(ctsio); 5181 ctl_done((union ctl_io *)ctsio); 5182 goto bailout; 5183 break; /* NOTREACHED */ 5184 } 5185 5186 /* 5187 * We check the LBA and length, but don't do anything with them. 5188 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5189 * get flushed. This check will just help satisfy anyone who wants 5190 * to see an error for an out of range LBA. 5191 */ 5192 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5193 ctl_set_lba_out_of_range(ctsio); 5194 ctl_done((union ctl_io *)ctsio); 5195 goto bailout; 5196 } 5197 5198 /* 5199 * If this LUN has no backend, we can't flush the cache anyway. 5200 */ 5201 if (lun->backend == NULL) { 5202 ctl_set_invalid_opcode(ctsio); 5203 ctl_done((union ctl_io *)ctsio); 5204 goto bailout; 5205 } 5206 5207 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5208 lbalen->lba = starting_lba; 5209 lbalen->len = block_count; 5210 lbalen->flags = byte2; 5211 5212 /* 5213 * Check to see whether we're configured to send the SYNCHRONIZE 5214 * CACHE command directly to the back end. 5215 */ 5216 mtx_lock(&lun->lun_lock); 5217 if ((softc->flags & CTL_FLAG_REAL_SYNC) 5218 && (++(lun->sync_count) >= lun->sync_interval)) { 5219 lun->sync_count = 0; 5220 mtx_unlock(&lun->lun_lock); 5221 retval = lun->backend->config_write((union ctl_io *)ctsio); 5222 } else { 5223 mtx_unlock(&lun->lun_lock); 5224 ctl_set_success(ctsio); 5225 ctl_done((union ctl_io *)ctsio); 5226 } 5227 5228bailout: 5229 5230 return (retval); 5231} 5232 5233int 5234ctl_format(struct ctl_scsiio *ctsio) 5235{ 5236 struct scsi_format *cdb; 5237 struct ctl_lun *lun; 5238 int length, defect_list_len; 5239 5240 CTL_DEBUG_PRINT(("ctl_format\n")); 5241 5242 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5243 5244 cdb = (struct scsi_format *)ctsio->cdb; 5245 5246 length = 0; 5247 if (cdb->byte2 & SF_FMTDATA) { 5248 if (cdb->byte2 & SF_LONGLIST) 5249 length = sizeof(struct scsi_format_header_long); 5250 else 5251 length = sizeof(struct scsi_format_header_short); 5252 } 5253 5254 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5255 && (length > 0)) { 5256 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5257 ctsio->kern_data_len = length; 5258 ctsio->kern_total_len = length; 5259 ctsio->kern_data_resid = 0; 5260 ctsio->kern_rel_offset = 0; 5261 ctsio->kern_sg_entries = 0; 5262 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5263 ctsio->be_move_done = ctl_config_move_done; 5264 ctl_datamove((union ctl_io *)ctsio); 5265 5266 return (CTL_RETVAL_COMPLETE); 5267 } 5268 5269 defect_list_len = 0; 5270 5271 if (cdb->byte2 & SF_FMTDATA) { 5272 if (cdb->byte2 & SF_LONGLIST) { 5273 struct scsi_format_header_long *header; 5274 5275 header = (struct scsi_format_header_long *) 5276 ctsio->kern_data_ptr; 5277 5278 defect_list_len = scsi_4btoul(header->defect_list_len); 5279 if (defect_list_len != 0) { 5280 ctl_set_invalid_field(ctsio, 5281 /*sks_valid*/ 1, 5282 /*command*/ 0, 5283 /*field*/ 2, 5284 /*bit_valid*/ 0, 5285 /*bit*/ 0); 5286 goto bailout; 5287 } 5288 } else { 5289 struct scsi_format_header_short *header; 5290 5291 header = (struct scsi_format_header_short *) 5292 ctsio->kern_data_ptr; 5293 5294 defect_list_len = scsi_2btoul(header->defect_list_len); 5295 if (defect_list_len != 0) { 5296 ctl_set_invalid_field(ctsio, 5297 /*sks_valid*/ 1, 5298 /*command*/ 0, 5299 /*field*/ 2, 5300 /*bit_valid*/ 0, 5301 /*bit*/ 0); 5302 goto bailout; 5303 } 5304 } 5305 } 5306 5307 /* 5308 * The format command will clear out the "Medium format corrupted" 5309 * status if set by the configuration code. That status is really 5310 * just a way to notify the host that we have lost the media, and 5311 * get them to issue a command that will basically make them think 5312 * they're blowing away the media. 5313 */ 5314 mtx_lock(&lun->lun_lock); 5315 lun->flags &= ~CTL_LUN_INOPERABLE; 5316 mtx_unlock(&lun->lun_lock); 5317 5318 ctl_set_success(ctsio); 5319bailout: 5320 5321 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5322 free(ctsio->kern_data_ptr, M_CTL); 5323 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5324 } 5325 5326 ctl_done((union ctl_io *)ctsio); 5327 return (CTL_RETVAL_COMPLETE); 5328} 5329 5330int 5331ctl_read_buffer(struct ctl_scsiio *ctsio) 5332{ 5333 struct scsi_read_buffer *cdb; 5334 struct ctl_lun *lun; 5335 int buffer_offset, len; 5336 static uint8_t descr[4]; 5337 static uint8_t echo_descr[4] = { 0 }; 5338 5339 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5340 5341 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5342 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5343 5344 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA && 5345 (cdb->byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5346 (cdb->byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5347 ctl_set_invalid_field(ctsio, 5348 /*sks_valid*/ 1, 5349 /*command*/ 1, 5350 /*field*/ 1, 5351 /*bit_valid*/ 1, 5352 /*bit*/ 4); 5353 ctl_done((union ctl_io *)ctsio); 5354 return (CTL_RETVAL_COMPLETE); 5355 } 5356 5357 len = scsi_3btoul(cdb->length); 5358 buffer_offset = scsi_3btoul(cdb->offset); 5359 5360 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5361 ctl_set_invalid_field(ctsio, 5362 /*sks_valid*/ 1, 5363 /*command*/ 1, 5364 /*field*/ 6, 5365 /*bit_valid*/ 0, 5366 /*bit*/ 0); 5367 ctl_done((union ctl_io *)ctsio); 5368 return (CTL_RETVAL_COMPLETE); 5369 } 5370 5371 if ((cdb->byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5372 descr[0] = 0; 5373 scsi_ulto3b(CTL_WRITE_BUFFER_SIZE, &descr[1]); 5374 ctsio->kern_data_ptr = descr; 5375 len = min(len, sizeof(descr)); 5376 } else if ((cdb->byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5377 ctsio->kern_data_ptr = echo_descr; 5378 len = min(len, sizeof(echo_descr)); 5379 } else { 5380 if (lun->write_buffer == NULL) { 5381 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5382 M_CTL, M_WAITOK); 5383 } 5384 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5385 } 5386 ctsio->kern_data_len = len; 5387 ctsio->kern_total_len = len; 5388 ctsio->kern_data_resid = 0; 5389 ctsio->kern_rel_offset = 0; 5390 ctsio->kern_sg_entries = 0; 5391 ctl_set_success(ctsio); 5392 ctsio->be_move_done = ctl_config_move_done; 5393 ctl_datamove((union ctl_io *)ctsio); 5394 return (CTL_RETVAL_COMPLETE); 5395} 5396 5397int 5398ctl_write_buffer(struct ctl_scsiio *ctsio) 5399{ 5400 struct scsi_write_buffer *cdb; 5401 struct ctl_lun *lun; 5402 int buffer_offset, len; 5403 5404 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5405 5406 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5407 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5408 5409 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5410 ctl_set_invalid_field(ctsio, 5411 /*sks_valid*/ 1, 5412 /*command*/ 1, 5413 /*field*/ 1, 5414 /*bit_valid*/ 1, 5415 /*bit*/ 4); 5416 ctl_done((union ctl_io *)ctsio); 5417 return (CTL_RETVAL_COMPLETE); 5418 } 5419 5420 len = scsi_3btoul(cdb->length); 5421 buffer_offset = scsi_3btoul(cdb->offset); 5422 5423 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5424 ctl_set_invalid_field(ctsio, 5425 /*sks_valid*/ 1, 5426 /*command*/ 1, 5427 /*field*/ 6, 5428 /*bit_valid*/ 0, 5429 /*bit*/ 0); 5430 ctl_done((union ctl_io *)ctsio); 5431 return (CTL_RETVAL_COMPLETE); 5432 } 5433 5434 /* 5435 * If we've got a kernel request that hasn't been malloced yet, 5436 * malloc it and tell the caller the data buffer is here. 5437 */ 5438 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5439 if (lun->write_buffer == NULL) { 5440 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5441 M_CTL, M_WAITOK); 5442 } 5443 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5444 ctsio->kern_data_len = len; 5445 ctsio->kern_total_len = len; 5446 ctsio->kern_data_resid = 0; 5447 ctsio->kern_rel_offset = 0; 5448 ctsio->kern_sg_entries = 0; 5449 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5450 ctsio->be_move_done = ctl_config_move_done; 5451 ctl_datamove((union ctl_io *)ctsio); 5452 5453 return (CTL_RETVAL_COMPLETE); 5454 } 5455 5456 ctl_set_success(ctsio); 5457 ctl_done((union ctl_io *)ctsio); 5458 return (CTL_RETVAL_COMPLETE); 5459} 5460 5461int 5462ctl_write_same(struct ctl_scsiio *ctsio) 5463{ 5464 struct ctl_lun *lun; 5465 struct ctl_lba_len_flags *lbalen; 5466 uint64_t lba; 5467 uint32_t num_blocks; 5468 int len, retval; 5469 uint8_t byte2; 5470 5471 retval = CTL_RETVAL_COMPLETE; 5472 5473 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5474 5475 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5476 5477 switch (ctsio->cdb[0]) { 5478 case WRITE_SAME_10: { 5479 struct scsi_write_same_10 *cdb; 5480 5481 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5482 5483 lba = scsi_4btoul(cdb->addr); 5484 num_blocks = scsi_2btoul(cdb->length); 5485 byte2 = cdb->byte2; 5486 break; 5487 } 5488 case WRITE_SAME_16: { 5489 struct scsi_write_same_16 *cdb; 5490 5491 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5492 5493 lba = scsi_8btou64(cdb->addr); 5494 num_blocks = scsi_4btoul(cdb->length); 5495 byte2 = cdb->byte2; 5496 break; 5497 } 5498 default: 5499 /* 5500 * We got a command we don't support. This shouldn't 5501 * happen, commands should be filtered out above us. 5502 */ 5503 ctl_set_invalid_opcode(ctsio); 5504 ctl_done((union ctl_io *)ctsio); 5505 5506 return (CTL_RETVAL_COMPLETE); 5507 break; /* NOTREACHED */ 5508 } 5509 5510 /* NDOB and ANCHOR flags can be used only together with UNMAP */ 5511 if ((byte2 & SWS_UNMAP) == 0 && 5512 (byte2 & (SWS_NDOB | SWS_ANCHOR)) != 0) { 5513 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5514 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5515 ctl_done((union ctl_io *)ctsio); 5516 return (CTL_RETVAL_COMPLETE); 5517 } 5518 5519 /* 5520 * The first check is to make sure we're in bounds, the second 5521 * check is to catch wrap-around problems. If the lba + num blocks 5522 * is less than the lba, then we've wrapped around and the block 5523 * range is invalid anyway. 5524 */ 5525 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5526 || ((lba + num_blocks) < lba)) { 5527 ctl_set_lba_out_of_range(ctsio); 5528 ctl_done((union ctl_io *)ctsio); 5529 return (CTL_RETVAL_COMPLETE); 5530 } 5531 5532 /* Zero number of blocks means "to the last logical block" */ 5533 if (num_blocks == 0) { 5534 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5535 ctl_set_invalid_field(ctsio, 5536 /*sks_valid*/ 0, 5537 /*command*/ 1, 5538 /*field*/ 0, 5539 /*bit_valid*/ 0, 5540 /*bit*/ 0); 5541 ctl_done((union ctl_io *)ctsio); 5542 return (CTL_RETVAL_COMPLETE); 5543 } 5544 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5545 } 5546 5547 len = lun->be_lun->blocksize; 5548 5549 /* 5550 * If we've got a kernel request that hasn't been malloced yet, 5551 * malloc it and tell the caller the data buffer is here. 5552 */ 5553 if ((byte2 & SWS_NDOB) == 0 && 5554 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5555 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5556 ctsio->kern_data_len = len; 5557 ctsio->kern_total_len = len; 5558 ctsio->kern_data_resid = 0; 5559 ctsio->kern_rel_offset = 0; 5560 ctsio->kern_sg_entries = 0; 5561 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5562 ctsio->be_move_done = ctl_config_move_done; 5563 ctl_datamove((union ctl_io *)ctsio); 5564 5565 return (CTL_RETVAL_COMPLETE); 5566 } 5567 5568 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5569 lbalen->lba = lba; 5570 lbalen->len = num_blocks; 5571 lbalen->flags = byte2; 5572 retval = lun->backend->config_write((union ctl_io *)ctsio); 5573 5574 return (retval); 5575} 5576 5577int 5578ctl_unmap(struct ctl_scsiio *ctsio) 5579{ 5580 struct ctl_lun *lun; 5581 struct scsi_unmap *cdb; 5582 struct ctl_ptr_len_flags *ptrlen; 5583 struct scsi_unmap_header *hdr; 5584 struct scsi_unmap_desc *buf, *end, *endnz, *range; 5585 uint64_t lba; 5586 uint32_t num_blocks; 5587 int len, retval; 5588 uint8_t byte2; 5589 5590 retval = CTL_RETVAL_COMPLETE; 5591 5592 CTL_DEBUG_PRINT(("ctl_unmap\n")); 5593 5594 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5595 cdb = (struct scsi_unmap *)ctsio->cdb; 5596 5597 len = scsi_2btoul(cdb->length); 5598 byte2 = cdb->byte2; 5599 5600 /* 5601 * If we've got a kernel request that hasn't been malloced yet, 5602 * malloc it and tell the caller the data buffer is here. 5603 */ 5604 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5605 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5606 ctsio->kern_data_len = len; 5607 ctsio->kern_total_len = len; 5608 ctsio->kern_data_resid = 0; 5609 ctsio->kern_rel_offset = 0; 5610 ctsio->kern_sg_entries = 0; 5611 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5612 ctsio->be_move_done = ctl_config_move_done; 5613 ctl_datamove((union ctl_io *)ctsio); 5614 5615 return (CTL_RETVAL_COMPLETE); 5616 } 5617 5618 len = ctsio->kern_total_len - ctsio->kern_data_resid; 5619 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 5620 if (len < sizeof (*hdr) || 5621 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 5622 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 5623 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 5624 ctl_set_invalid_field(ctsio, 5625 /*sks_valid*/ 0, 5626 /*command*/ 0, 5627 /*field*/ 0, 5628 /*bit_valid*/ 0, 5629 /*bit*/ 0); 5630 goto done; 5631 } 5632 len = scsi_2btoul(hdr->desc_length); 5633 buf = (struct scsi_unmap_desc *)(hdr + 1); 5634 end = buf + len / sizeof(*buf); 5635 5636 endnz = buf; 5637 for (range = buf; range < end; range++) { 5638 lba = scsi_8btou64(range->lba); 5639 num_blocks = scsi_4btoul(range->length); 5640 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5641 || ((lba + num_blocks) < lba)) { 5642 ctl_set_lba_out_of_range(ctsio); 5643 ctl_done((union ctl_io *)ctsio); 5644 return (CTL_RETVAL_COMPLETE); 5645 } 5646 if (num_blocks != 0) 5647 endnz = range + 1; 5648 } 5649 5650 /* 5651 * Block backend can not handle zero last range. 5652 * Filter it out and return if there is nothing left. 5653 */ 5654 len = (uint8_t *)endnz - (uint8_t *)buf; 5655 if (len == 0) { 5656 ctl_set_success(ctsio); 5657 goto done; 5658 } 5659 5660 mtx_lock(&lun->lun_lock); 5661 ptrlen = (struct ctl_ptr_len_flags *) 5662 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5663 ptrlen->ptr = (void *)buf; 5664 ptrlen->len = len; 5665 ptrlen->flags = byte2; 5666 ctl_check_blocked(lun); 5667 mtx_unlock(&lun->lun_lock); 5668 5669 retval = lun->backend->config_write((union ctl_io *)ctsio); 5670 return (retval); 5671 5672done: 5673 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5674 free(ctsio->kern_data_ptr, M_CTL); 5675 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5676 } 5677 ctl_done((union ctl_io *)ctsio); 5678 return (CTL_RETVAL_COMPLETE); 5679} 5680 5681/* 5682 * Note that this function currently doesn't actually do anything inside 5683 * CTL to enforce things if the DQue bit is turned on. 5684 * 5685 * Also note that this function can't be used in the default case, because 5686 * the DQue bit isn't set in the changeable mask for the control mode page 5687 * anyway. This is just here as an example for how to implement a page 5688 * handler, and a placeholder in case we want to allow the user to turn 5689 * tagged queueing on and off. 5690 * 5691 * The D_SENSE bit handling is functional, however, and will turn 5692 * descriptor sense on and off for a given LUN. 5693 */ 5694int 5695ctl_control_page_handler(struct ctl_scsiio *ctsio, 5696 struct ctl_page_index *page_index, uint8_t *page_ptr) 5697{ 5698 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 5699 struct ctl_lun *lun; 5700 int set_ua; 5701 uint32_t initidx; 5702 5703 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5704 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5705 set_ua = 0; 5706 5707 user_cp = (struct scsi_control_page *)page_ptr; 5708 current_cp = (struct scsi_control_page *) 5709 (page_index->page_data + (page_index->page_len * 5710 CTL_PAGE_CURRENT)); 5711 saved_cp = (struct scsi_control_page *) 5712 (page_index->page_data + (page_index->page_len * 5713 CTL_PAGE_SAVED)); 5714 5715 mtx_lock(&lun->lun_lock); 5716 if (((current_cp->rlec & SCP_DSENSE) == 0) 5717 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 5718 /* 5719 * Descriptor sense is currently turned off and the user 5720 * wants to turn it on. 5721 */ 5722 current_cp->rlec |= SCP_DSENSE; 5723 saved_cp->rlec |= SCP_DSENSE; 5724 lun->flags |= CTL_LUN_SENSE_DESC; 5725 set_ua = 1; 5726 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 5727 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 5728 /* 5729 * Descriptor sense is currently turned on, and the user 5730 * wants to turn it off. 5731 */ 5732 current_cp->rlec &= ~SCP_DSENSE; 5733 saved_cp->rlec &= ~SCP_DSENSE; 5734 lun->flags &= ~CTL_LUN_SENSE_DESC; 5735 set_ua = 1; 5736 } 5737 if ((current_cp->queue_flags & SCP_QUEUE_ALG_MASK) != 5738 (user_cp->queue_flags & SCP_QUEUE_ALG_MASK)) { 5739 current_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 5740 current_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 5741 saved_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 5742 saved_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 5743 set_ua = 1; 5744 } 5745 if ((current_cp->eca_and_aen & SCP_SWP) != 5746 (user_cp->eca_and_aen & SCP_SWP)) { 5747 current_cp->eca_and_aen &= ~SCP_SWP; 5748 current_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 5749 saved_cp->eca_and_aen &= ~SCP_SWP; 5750 saved_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 5751 set_ua = 1; 5752 } 5753 if (set_ua != 0) 5754 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 5755 mtx_unlock(&lun->lun_lock); 5756 5757 return (0); 5758} 5759 5760int 5761ctl_caching_sp_handler(struct ctl_scsiio *ctsio, 5762 struct ctl_page_index *page_index, uint8_t *page_ptr) 5763{ 5764 struct scsi_caching_page *current_cp, *saved_cp, *user_cp; 5765 struct ctl_lun *lun; 5766 int set_ua; 5767 uint32_t initidx; 5768 5769 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5770 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5771 set_ua = 0; 5772 5773 user_cp = (struct scsi_caching_page *)page_ptr; 5774 current_cp = (struct scsi_caching_page *) 5775 (page_index->page_data + (page_index->page_len * 5776 CTL_PAGE_CURRENT)); 5777 saved_cp = (struct scsi_caching_page *) 5778 (page_index->page_data + (page_index->page_len * 5779 CTL_PAGE_SAVED)); 5780 5781 mtx_lock(&lun->lun_lock); 5782 if ((current_cp->flags1 & (SCP_WCE | SCP_RCD)) != 5783 (user_cp->flags1 & (SCP_WCE | SCP_RCD))) { 5784 current_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 5785 current_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 5786 saved_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 5787 saved_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 5788 set_ua = 1; 5789 } 5790 if (set_ua != 0) 5791 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 5792 mtx_unlock(&lun->lun_lock); 5793 5794 return (0); 5795} 5796 5797int 5798ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 5799 struct ctl_page_index *page_index, 5800 uint8_t *page_ptr) 5801{ 5802 uint8_t *c; 5803 int i; 5804 5805 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 5806 ctl_time_io_secs = 5807 (c[0] << 8) | 5808 (c[1] << 0) | 5809 0; 5810 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 5811 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 5812 printf("page data:"); 5813 for (i=0; i<8; i++) 5814 printf(" %.2x",page_ptr[i]); 5815 printf("\n"); 5816 return (0); 5817} 5818 5819int 5820ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 5821 struct ctl_page_index *page_index, 5822 int pc) 5823{ 5824 struct copan_debugconf_subpage *page; 5825 5826 page = (struct copan_debugconf_subpage *)page_index->page_data + 5827 (page_index->page_len * pc); 5828 5829 switch (pc) { 5830 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 5831 case SMS_PAGE_CTRL_DEFAULT >> 6: 5832 case SMS_PAGE_CTRL_SAVED >> 6: 5833 /* 5834 * We don't update the changable or default bits for this page. 5835 */ 5836 break; 5837 case SMS_PAGE_CTRL_CURRENT >> 6: 5838 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 5839 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 5840 break; 5841 default: 5842#ifdef NEEDTOPORT 5843 EPRINT(0, "Invalid PC %d!!", pc); 5844#endif /* NEEDTOPORT */ 5845 break; 5846 } 5847 return (0); 5848} 5849 5850 5851static int 5852ctl_do_mode_select(union ctl_io *io) 5853{ 5854 struct scsi_mode_page_header *page_header; 5855 struct ctl_page_index *page_index; 5856 struct ctl_scsiio *ctsio; 5857 int control_dev, page_len; 5858 int page_len_offset, page_len_size; 5859 union ctl_modepage_info *modepage_info; 5860 struct ctl_lun *lun; 5861 int *len_left, *len_used; 5862 int retval, i; 5863 5864 ctsio = &io->scsiio; 5865 page_index = NULL; 5866 page_len = 0; 5867 retval = CTL_RETVAL_COMPLETE; 5868 5869 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5870 5871 if (lun->be_lun->lun_type != T_DIRECT) 5872 control_dev = 1; 5873 else 5874 control_dev = 0; 5875 5876 modepage_info = (union ctl_modepage_info *) 5877 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 5878 len_left = &modepage_info->header.len_left; 5879 len_used = &modepage_info->header.len_used; 5880 5881do_next_page: 5882 5883 page_header = (struct scsi_mode_page_header *) 5884 (ctsio->kern_data_ptr + *len_used); 5885 5886 if (*len_left == 0) { 5887 free(ctsio->kern_data_ptr, M_CTL); 5888 ctl_set_success(ctsio); 5889 ctl_done((union ctl_io *)ctsio); 5890 return (CTL_RETVAL_COMPLETE); 5891 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 5892 5893 free(ctsio->kern_data_ptr, M_CTL); 5894 ctl_set_param_len_error(ctsio); 5895 ctl_done((union ctl_io *)ctsio); 5896 return (CTL_RETVAL_COMPLETE); 5897 5898 } else if ((page_header->page_code & SMPH_SPF) 5899 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 5900 5901 free(ctsio->kern_data_ptr, M_CTL); 5902 ctl_set_param_len_error(ctsio); 5903 ctl_done((union ctl_io *)ctsio); 5904 return (CTL_RETVAL_COMPLETE); 5905 } 5906 5907 5908 /* 5909 * XXX KDM should we do something with the block descriptor? 5910 */ 5911 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 5912 5913 if ((control_dev != 0) 5914 && (lun->mode_pages.index[i].page_flags & 5915 CTL_PAGE_FLAG_DISK_ONLY)) 5916 continue; 5917 5918 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 5919 (page_header->page_code & SMPH_PC_MASK)) 5920 continue; 5921 5922 /* 5923 * If neither page has a subpage code, then we've got a 5924 * match. 5925 */ 5926 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 5927 && ((page_header->page_code & SMPH_SPF) == 0)) { 5928 page_index = &lun->mode_pages.index[i]; 5929 page_len = page_header->page_length; 5930 break; 5931 } 5932 5933 /* 5934 * If both pages have subpages, then the subpage numbers 5935 * have to match. 5936 */ 5937 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 5938 && (page_header->page_code & SMPH_SPF)) { 5939 struct scsi_mode_page_header_sp *sph; 5940 5941 sph = (struct scsi_mode_page_header_sp *)page_header; 5942 5943 if (lun->mode_pages.index[i].subpage == 5944 sph->subpage) { 5945 page_index = &lun->mode_pages.index[i]; 5946 page_len = scsi_2btoul(sph->page_length); 5947 break; 5948 } 5949 } 5950 } 5951 5952 /* 5953 * If we couldn't find the page, or if we don't have a mode select 5954 * handler for it, send back an error to the user. 5955 */ 5956 if ((page_index == NULL) 5957 || (page_index->select_handler == NULL)) { 5958 ctl_set_invalid_field(ctsio, 5959 /*sks_valid*/ 1, 5960 /*command*/ 0, 5961 /*field*/ *len_used, 5962 /*bit_valid*/ 0, 5963 /*bit*/ 0); 5964 free(ctsio->kern_data_ptr, M_CTL); 5965 ctl_done((union ctl_io *)ctsio); 5966 return (CTL_RETVAL_COMPLETE); 5967 } 5968 5969 if (page_index->page_code & SMPH_SPF) { 5970 page_len_offset = 2; 5971 page_len_size = 2; 5972 } else { 5973 page_len_size = 1; 5974 page_len_offset = 1; 5975 } 5976 5977 /* 5978 * If the length the initiator gives us isn't the one we specify in 5979 * the mode page header, or if they didn't specify enough data in 5980 * the CDB to avoid truncating this page, kick out the request. 5981 */ 5982 if ((page_len != (page_index->page_len - page_len_offset - 5983 page_len_size)) 5984 || (*len_left < page_index->page_len)) { 5985 5986 5987 ctl_set_invalid_field(ctsio, 5988 /*sks_valid*/ 1, 5989 /*command*/ 0, 5990 /*field*/ *len_used + page_len_offset, 5991 /*bit_valid*/ 0, 5992 /*bit*/ 0); 5993 free(ctsio->kern_data_ptr, M_CTL); 5994 ctl_done((union ctl_io *)ctsio); 5995 return (CTL_RETVAL_COMPLETE); 5996 } 5997 5998 /* 5999 * Run through the mode page, checking to make sure that the bits 6000 * the user changed are actually legal for him to change. 6001 */ 6002 for (i = 0; i < page_index->page_len; i++) { 6003 uint8_t *user_byte, *change_mask, *current_byte; 6004 int bad_bit; 6005 int j; 6006 6007 user_byte = (uint8_t *)page_header + i; 6008 change_mask = page_index->page_data + 6009 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6010 current_byte = page_index->page_data + 6011 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6012 6013 /* 6014 * Check to see whether the user set any bits in this byte 6015 * that he is not allowed to set. 6016 */ 6017 if ((*user_byte & ~(*change_mask)) == 6018 (*current_byte & ~(*change_mask))) 6019 continue; 6020 6021 /* 6022 * Go through bit by bit to determine which one is illegal. 6023 */ 6024 bad_bit = 0; 6025 for (j = 7; j >= 0; j--) { 6026 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6027 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6028 bad_bit = i; 6029 break; 6030 } 6031 } 6032 ctl_set_invalid_field(ctsio, 6033 /*sks_valid*/ 1, 6034 /*command*/ 0, 6035 /*field*/ *len_used + i, 6036 /*bit_valid*/ 1, 6037 /*bit*/ bad_bit); 6038 free(ctsio->kern_data_ptr, M_CTL); 6039 ctl_done((union ctl_io *)ctsio); 6040 return (CTL_RETVAL_COMPLETE); 6041 } 6042 6043 /* 6044 * Decrement these before we call the page handler, since we may 6045 * end up getting called back one way or another before the handler 6046 * returns to this context. 6047 */ 6048 *len_left -= page_index->page_len; 6049 *len_used += page_index->page_len; 6050 6051 retval = page_index->select_handler(ctsio, page_index, 6052 (uint8_t *)page_header); 6053 6054 /* 6055 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6056 * wait until this queued command completes to finish processing 6057 * the mode page. If it returns anything other than 6058 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6059 * already set the sense information, freed the data pointer, and 6060 * completed the io for us. 6061 */ 6062 if (retval != CTL_RETVAL_COMPLETE) 6063 goto bailout_no_done; 6064 6065 /* 6066 * If the initiator sent us more than one page, parse the next one. 6067 */ 6068 if (*len_left > 0) 6069 goto do_next_page; 6070 6071 ctl_set_success(ctsio); 6072 free(ctsio->kern_data_ptr, M_CTL); 6073 ctl_done((union ctl_io *)ctsio); 6074 6075bailout_no_done: 6076 6077 return (CTL_RETVAL_COMPLETE); 6078 6079} 6080 6081int 6082ctl_mode_select(struct ctl_scsiio *ctsio) 6083{ 6084 int param_len, pf, sp; 6085 int header_size, bd_len; 6086 int len_left, len_used; 6087 struct ctl_page_index *page_index; 6088 struct ctl_lun *lun; 6089 int control_dev, page_len; 6090 union ctl_modepage_info *modepage_info; 6091 int retval; 6092 6093 pf = 0; 6094 sp = 0; 6095 page_len = 0; 6096 len_used = 0; 6097 len_left = 0; 6098 retval = 0; 6099 bd_len = 0; 6100 page_index = NULL; 6101 6102 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6103 6104 if (lun->be_lun->lun_type != T_DIRECT) 6105 control_dev = 1; 6106 else 6107 control_dev = 0; 6108 6109 switch (ctsio->cdb[0]) { 6110 case MODE_SELECT_6: { 6111 struct scsi_mode_select_6 *cdb; 6112 6113 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6114 6115 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6116 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6117 6118 param_len = cdb->length; 6119 header_size = sizeof(struct scsi_mode_header_6); 6120 break; 6121 } 6122 case MODE_SELECT_10: { 6123 struct scsi_mode_select_10 *cdb; 6124 6125 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6126 6127 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6128 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6129 6130 param_len = scsi_2btoul(cdb->length); 6131 header_size = sizeof(struct scsi_mode_header_10); 6132 break; 6133 } 6134 default: 6135 ctl_set_invalid_opcode(ctsio); 6136 ctl_done((union ctl_io *)ctsio); 6137 return (CTL_RETVAL_COMPLETE); 6138 break; /* NOTREACHED */ 6139 } 6140 6141 /* 6142 * From SPC-3: 6143 * "A parameter list length of zero indicates that the Data-Out Buffer 6144 * shall be empty. This condition shall not be considered as an error." 6145 */ 6146 if (param_len == 0) { 6147 ctl_set_success(ctsio); 6148 ctl_done((union ctl_io *)ctsio); 6149 return (CTL_RETVAL_COMPLETE); 6150 } 6151 6152 /* 6153 * Since we'll hit this the first time through, prior to 6154 * allocation, we don't need to free a data buffer here. 6155 */ 6156 if (param_len < header_size) { 6157 ctl_set_param_len_error(ctsio); 6158 ctl_done((union ctl_io *)ctsio); 6159 return (CTL_RETVAL_COMPLETE); 6160 } 6161 6162 /* 6163 * Allocate the data buffer and grab the user's data. In theory, 6164 * we shouldn't have to sanity check the parameter list length here 6165 * because the maximum size is 64K. We should be able to malloc 6166 * that much without too many problems. 6167 */ 6168 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6169 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6170 ctsio->kern_data_len = param_len; 6171 ctsio->kern_total_len = param_len; 6172 ctsio->kern_data_resid = 0; 6173 ctsio->kern_rel_offset = 0; 6174 ctsio->kern_sg_entries = 0; 6175 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6176 ctsio->be_move_done = ctl_config_move_done; 6177 ctl_datamove((union ctl_io *)ctsio); 6178 6179 return (CTL_RETVAL_COMPLETE); 6180 } 6181 6182 switch (ctsio->cdb[0]) { 6183 case MODE_SELECT_6: { 6184 struct scsi_mode_header_6 *mh6; 6185 6186 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6187 bd_len = mh6->blk_desc_len; 6188 break; 6189 } 6190 case MODE_SELECT_10: { 6191 struct scsi_mode_header_10 *mh10; 6192 6193 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6194 bd_len = scsi_2btoul(mh10->blk_desc_len); 6195 break; 6196 } 6197 default: 6198 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6199 break; 6200 } 6201 6202 if (param_len < (header_size + bd_len)) { 6203 free(ctsio->kern_data_ptr, M_CTL); 6204 ctl_set_param_len_error(ctsio); 6205 ctl_done((union ctl_io *)ctsio); 6206 return (CTL_RETVAL_COMPLETE); 6207 } 6208 6209 /* 6210 * Set the IO_CONT flag, so that if this I/O gets passed to 6211 * ctl_config_write_done(), it'll get passed back to 6212 * ctl_do_mode_select() for further processing, or completion if 6213 * we're all done. 6214 */ 6215 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6216 ctsio->io_cont = ctl_do_mode_select; 6217 6218 modepage_info = (union ctl_modepage_info *) 6219 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6220 6221 memset(modepage_info, 0, sizeof(*modepage_info)); 6222 6223 len_left = param_len - header_size - bd_len; 6224 len_used = header_size + bd_len; 6225 6226 modepage_info->header.len_left = len_left; 6227 modepage_info->header.len_used = len_used; 6228 6229 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6230} 6231 6232int 6233ctl_mode_sense(struct ctl_scsiio *ctsio) 6234{ 6235 struct ctl_lun *lun; 6236 int pc, page_code, dbd, llba, subpage; 6237 int alloc_len, page_len, header_len, total_len; 6238 struct scsi_mode_block_descr *block_desc; 6239 struct ctl_page_index *page_index; 6240 int control_dev; 6241 6242 dbd = 0; 6243 llba = 0; 6244 block_desc = NULL; 6245 page_index = NULL; 6246 6247 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6248 6249 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6250 6251 if (lun->be_lun->lun_type != T_DIRECT) 6252 control_dev = 1; 6253 else 6254 control_dev = 0; 6255 6256 switch (ctsio->cdb[0]) { 6257 case MODE_SENSE_6: { 6258 struct scsi_mode_sense_6 *cdb; 6259 6260 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6261 6262 header_len = sizeof(struct scsi_mode_hdr_6); 6263 if (cdb->byte2 & SMS_DBD) 6264 dbd = 1; 6265 else 6266 header_len += sizeof(struct scsi_mode_block_descr); 6267 6268 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6269 page_code = cdb->page & SMS_PAGE_CODE; 6270 subpage = cdb->subpage; 6271 alloc_len = cdb->length; 6272 break; 6273 } 6274 case MODE_SENSE_10: { 6275 struct scsi_mode_sense_10 *cdb; 6276 6277 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6278 6279 header_len = sizeof(struct scsi_mode_hdr_10); 6280 6281 if (cdb->byte2 & SMS_DBD) 6282 dbd = 1; 6283 else 6284 header_len += sizeof(struct scsi_mode_block_descr); 6285 if (cdb->byte2 & SMS10_LLBAA) 6286 llba = 1; 6287 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6288 page_code = cdb->page & SMS_PAGE_CODE; 6289 subpage = cdb->subpage; 6290 alloc_len = scsi_2btoul(cdb->length); 6291 break; 6292 } 6293 default: 6294 ctl_set_invalid_opcode(ctsio); 6295 ctl_done((union ctl_io *)ctsio); 6296 return (CTL_RETVAL_COMPLETE); 6297 break; /* NOTREACHED */ 6298 } 6299 6300 /* 6301 * We have to make a first pass through to calculate the size of 6302 * the pages that match the user's query. Then we allocate enough 6303 * memory to hold it, and actually copy the data into the buffer. 6304 */ 6305 switch (page_code) { 6306 case SMS_ALL_PAGES_PAGE: { 6307 int i; 6308 6309 page_len = 0; 6310 6311 /* 6312 * At the moment, values other than 0 and 0xff here are 6313 * reserved according to SPC-3. 6314 */ 6315 if ((subpage != SMS_SUBPAGE_PAGE_0) 6316 && (subpage != SMS_SUBPAGE_ALL)) { 6317 ctl_set_invalid_field(ctsio, 6318 /*sks_valid*/ 1, 6319 /*command*/ 1, 6320 /*field*/ 3, 6321 /*bit_valid*/ 0, 6322 /*bit*/ 0); 6323 ctl_done((union ctl_io *)ctsio); 6324 return (CTL_RETVAL_COMPLETE); 6325 } 6326 6327 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6328 if ((control_dev != 0) 6329 && (lun->mode_pages.index[i].page_flags & 6330 CTL_PAGE_FLAG_DISK_ONLY)) 6331 continue; 6332 6333 /* 6334 * We don't use this subpage if the user didn't 6335 * request all subpages. 6336 */ 6337 if ((lun->mode_pages.index[i].subpage != 0) 6338 && (subpage == SMS_SUBPAGE_PAGE_0)) 6339 continue; 6340 6341#if 0 6342 printf("found page %#x len %d\n", 6343 lun->mode_pages.index[i].page_code & 6344 SMPH_PC_MASK, 6345 lun->mode_pages.index[i].page_len); 6346#endif 6347 page_len += lun->mode_pages.index[i].page_len; 6348 } 6349 break; 6350 } 6351 default: { 6352 int i; 6353 6354 page_len = 0; 6355 6356 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6357 /* Look for the right page code */ 6358 if ((lun->mode_pages.index[i].page_code & 6359 SMPH_PC_MASK) != page_code) 6360 continue; 6361 6362 /* Look for the right subpage or the subpage wildcard*/ 6363 if ((lun->mode_pages.index[i].subpage != subpage) 6364 && (subpage != SMS_SUBPAGE_ALL)) 6365 continue; 6366 6367 /* Make sure the page is supported for this dev type */ 6368 if ((control_dev != 0) 6369 && (lun->mode_pages.index[i].page_flags & 6370 CTL_PAGE_FLAG_DISK_ONLY)) 6371 continue; 6372 6373#if 0 6374 printf("found page %#x len %d\n", 6375 lun->mode_pages.index[i].page_code & 6376 SMPH_PC_MASK, 6377 lun->mode_pages.index[i].page_len); 6378#endif 6379 6380 page_len += lun->mode_pages.index[i].page_len; 6381 } 6382 6383 if (page_len == 0) { 6384 ctl_set_invalid_field(ctsio, 6385 /*sks_valid*/ 1, 6386 /*command*/ 1, 6387 /*field*/ 2, 6388 /*bit_valid*/ 1, 6389 /*bit*/ 5); 6390 ctl_done((union ctl_io *)ctsio); 6391 return (CTL_RETVAL_COMPLETE); 6392 } 6393 break; 6394 } 6395 } 6396 6397 total_len = header_len + page_len; 6398#if 0 6399 printf("header_len = %d, page_len = %d, total_len = %d\n", 6400 header_len, page_len, total_len); 6401#endif 6402 6403 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6404 ctsio->kern_sg_entries = 0; 6405 ctsio->kern_data_resid = 0; 6406 ctsio->kern_rel_offset = 0; 6407 if (total_len < alloc_len) { 6408 ctsio->residual = alloc_len - total_len; 6409 ctsio->kern_data_len = total_len; 6410 ctsio->kern_total_len = total_len; 6411 } else { 6412 ctsio->residual = 0; 6413 ctsio->kern_data_len = alloc_len; 6414 ctsio->kern_total_len = alloc_len; 6415 } 6416 6417 switch (ctsio->cdb[0]) { 6418 case MODE_SENSE_6: { 6419 struct scsi_mode_hdr_6 *header; 6420 6421 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6422 6423 header->datalen = MIN(total_len - 1, 254); 6424 if (control_dev == 0) { 6425 header->dev_specific = 0x10; /* DPOFUA */ 6426 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6427 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6428 .eca_and_aen & SCP_SWP) != 0) 6429 header->dev_specific |= 0x80; /* WP */ 6430 } 6431 if (dbd) 6432 header->block_descr_len = 0; 6433 else 6434 header->block_descr_len = 6435 sizeof(struct scsi_mode_block_descr); 6436 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6437 break; 6438 } 6439 case MODE_SENSE_10: { 6440 struct scsi_mode_hdr_10 *header; 6441 int datalen; 6442 6443 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6444 6445 datalen = MIN(total_len - 2, 65533); 6446 scsi_ulto2b(datalen, header->datalen); 6447 if (control_dev == 0) { 6448 header->dev_specific = 0x10; /* DPOFUA */ 6449 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6450 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6451 .eca_and_aen & SCP_SWP) != 0) 6452 header->dev_specific |= 0x80; /* WP */ 6453 } 6454 if (dbd) 6455 scsi_ulto2b(0, header->block_descr_len); 6456 else 6457 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 6458 header->block_descr_len); 6459 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6460 break; 6461 } 6462 default: 6463 panic("invalid CDB type %#x", ctsio->cdb[0]); 6464 break; /* NOTREACHED */ 6465 } 6466 6467 /* 6468 * If we've got a disk, use its blocksize in the block 6469 * descriptor. Otherwise, just set it to 0. 6470 */ 6471 if (dbd == 0) { 6472 if (control_dev == 0) 6473 scsi_ulto3b(lun->be_lun->blocksize, 6474 block_desc->block_len); 6475 else 6476 scsi_ulto3b(0, block_desc->block_len); 6477 } 6478 6479 switch (page_code) { 6480 case SMS_ALL_PAGES_PAGE: { 6481 int i, data_used; 6482 6483 data_used = header_len; 6484 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6485 struct ctl_page_index *page_index; 6486 6487 page_index = &lun->mode_pages.index[i]; 6488 6489 if ((control_dev != 0) 6490 && (page_index->page_flags & 6491 CTL_PAGE_FLAG_DISK_ONLY)) 6492 continue; 6493 6494 /* 6495 * We don't use this subpage if the user didn't 6496 * request all subpages. We already checked (above) 6497 * to make sure the user only specified a subpage 6498 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 6499 */ 6500 if ((page_index->subpage != 0) 6501 && (subpage == SMS_SUBPAGE_PAGE_0)) 6502 continue; 6503 6504 /* 6505 * Call the handler, if it exists, to update the 6506 * page to the latest values. 6507 */ 6508 if (page_index->sense_handler != NULL) 6509 page_index->sense_handler(ctsio, page_index,pc); 6510 6511 memcpy(ctsio->kern_data_ptr + data_used, 6512 page_index->page_data + 6513 (page_index->page_len * pc), 6514 page_index->page_len); 6515 data_used += page_index->page_len; 6516 } 6517 break; 6518 } 6519 default: { 6520 int i, data_used; 6521 6522 data_used = header_len; 6523 6524 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6525 struct ctl_page_index *page_index; 6526 6527 page_index = &lun->mode_pages.index[i]; 6528 6529 /* Look for the right page code */ 6530 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6531 continue; 6532 6533 /* Look for the right subpage or the subpage wildcard*/ 6534 if ((page_index->subpage != subpage) 6535 && (subpage != SMS_SUBPAGE_ALL)) 6536 continue; 6537 6538 /* Make sure the page is supported for this dev type */ 6539 if ((control_dev != 0) 6540 && (page_index->page_flags & 6541 CTL_PAGE_FLAG_DISK_ONLY)) 6542 continue; 6543 6544 /* 6545 * Call the handler, if it exists, to update the 6546 * page to the latest values. 6547 */ 6548 if (page_index->sense_handler != NULL) 6549 page_index->sense_handler(ctsio, page_index,pc); 6550 6551 memcpy(ctsio->kern_data_ptr + data_used, 6552 page_index->page_data + 6553 (page_index->page_len * pc), 6554 page_index->page_len); 6555 data_used += page_index->page_len; 6556 } 6557 break; 6558 } 6559 } 6560 6561 ctl_set_success(ctsio); 6562 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6563 ctsio->be_move_done = ctl_config_move_done; 6564 ctl_datamove((union ctl_io *)ctsio); 6565 return (CTL_RETVAL_COMPLETE); 6566} 6567 6568int 6569ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio, 6570 struct ctl_page_index *page_index, 6571 int pc) 6572{ 6573 struct ctl_lun *lun; 6574 struct scsi_log_param_header *phdr; 6575 uint8_t *data; 6576 uint64_t val; 6577 6578 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6579 data = page_index->page_data; 6580 6581 if (lun->backend->lun_attr != NULL && 6582 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksavail")) 6583 != UINT64_MAX) { 6584 phdr = (struct scsi_log_param_header *)data; 6585 scsi_ulto2b(0x0001, phdr->param_code); 6586 phdr->param_control = SLP_LBIN | SLP_LP; 6587 phdr->param_len = 8; 6588 data = (uint8_t *)(phdr + 1); 6589 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6590 data[4] = 0x02; /* per-pool */ 6591 data += phdr->param_len; 6592 } 6593 6594 if (lun->backend->lun_attr != NULL && 6595 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksused")) 6596 != UINT64_MAX) { 6597 phdr = (struct scsi_log_param_header *)data; 6598 scsi_ulto2b(0x0002, phdr->param_code); 6599 phdr->param_control = SLP_LBIN | SLP_LP; 6600 phdr->param_len = 8; 6601 data = (uint8_t *)(phdr + 1); 6602 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6603 data[4] = 0x01; /* per-LUN */ 6604 data += phdr->param_len; 6605 } 6606 6607 if (lun->backend->lun_attr != NULL && 6608 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksavail")) 6609 != UINT64_MAX) { 6610 phdr = (struct scsi_log_param_header *)data; 6611 scsi_ulto2b(0x00f1, phdr->param_code); 6612 phdr->param_control = SLP_LBIN | SLP_LP; 6613 phdr->param_len = 8; 6614 data = (uint8_t *)(phdr + 1); 6615 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6616 data[4] = 0x02; /* per-pool */ 6617 data += phdr->param_len; 6618 } 6619 6620 if (lun->backend->lun_attr != NULL && 6621 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksused")) 6622 != UINT64_MAX) { 6623 phdr = (struct scsi_log_param_header *)data; 6624 scsi_ulto2b(0x00f2, phdr->param_code); 6625 phdr->param_control = SLP_LBIN | SLP_LP; 6626 phdr->param_len = 8; 6627 data = (uint8_t *)(phdr + 1); 6628 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6629 data[4] = 0x02; /* per-pool */ 6630 data += phdr->param_len; 6631 } 6632 6633 page_index->page_len = data - page_index->page_data; 6634 return (0); 6635} 6636 6637int 6638ctl_sap_log_sense_handler(struct ctl_scsiio *ctsio, 6639 struct ctl_page_index *page_index, 6640 int pc) 6641{ 6642 struct ctl_lun *lun; 6643 struct stat_page *data; 6644 uint64_t rn, wn, rb, wb; 6645 struct bintime rt, wt; 6646 int i; 6647 6648 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6649 data = (struct stat_page *)page_index->page_data; 6650 6651 scsi_ulto2b(SLP_SAP, data->sap.hdr.param_code); 6652 data->sap.hdr.param_control = SLP_LBIN; 6653 data->sap.hdr.param_len = sizeof(struct scsi_log_stat_and_perf) - 6654 sizeof(struct scsi_log_param_header); 6655 rn = wn = rb = wb = 0; 6656 bintime_clear(&rt); 6657 bintime_clear(&wt); 6658 for (i = 0; i < CTL_MAX_PORTS; i++) { 6659 rn += lun->stats.ports[i].operations[CTL_STATS_READ]; 6660 wn += lun->stats.ports[i].operations[CTL_STATS_WRITE]; 6661 rb += lun->stats.ports[i].bytes[CTL_STATS_READ]; 6662 wb += lun->stats.ports[i].bytes[CTL_STATS_WRITE]; 6663 bintime_add(&rt, &lun->stats.ports[i].time[CTL_STATS_READ]); 6664 bintime_add(&wt, &lun->stats.ports[i].time[CTL_STATS_WRITE]); 6665 } 6666 scsi_u64to8b(rn, data->sap.read_num); 6667 scsi_u64to8b(wn, data->sap.write_num); 6668 if (lun->stats.blocksize > 0) { 6669 scsi_u64to8b(wb / lun->stats.blocksize, 6670 data->sap.recvieved_lba); 6671 scsi_u64to8b(rb / lun->stats.blocksize, 6672 data->sap.transmitted_lba); 6673 } 6674 scsi_u64to8b((uint64_t)rt.sec * 1000 + rt.frac / (UINT64_MAX / 1000), 6675 data->sap.read_int); 6676 scsi_u64to8b((uint64_t)wt.sec * 1000 + wt.frac / (UINT64_MAX / 1000), 6677 data->sap.write_int); 6678 scsi_u64to8b(0, data->sap.weighted_num); 6679 scsi_u64to8b(0, data->sap.weighted_int); 6680 scsi_ulto2b(SLP_IT, data->it.hdr.param_code); 6681 data->it.hdr.param_control = SLP_LBIN; 6682 data->it.hdr.param_len = sizeof(struct scsi_log_idle_time) - 6683 sizeof(struct scsi_log_param_header); 6684#ifdef CTL_TIME_IO 6685 scsi_u64to8b(lun->idle_time / SBT_1MS, data->it.idle_int); 6686#endif 6687 scsi_ulto2b(SLP_TI, data->ti.hdr.param_code); 6688 data->it.hdr.param_control = SLP_LBIN; 6689 data->ti.hdr.param_len = sizeof(struct scsi_log_time_interval) - 6690 sizeof(struct scsi_log_param_header); 6691 scsi_ulto4b(3, data->ti.exponent); 6692 scsi_ulto4b(1, data->ti.integer); 6693 6694 page_index->page_len = sizeof(*data); 6695 return (0); 6696} 6697 6698int 6699ctl_log_sense(struct ctl_scsiio *ctsio) 6700{ 6701 struct ctl_lun *lun; 6702 int i, pc, page_code, subpage; 6703 int alloc_len, total_len; 6704 struct ctl_page_index *page_index; 6705 struct scsi_log_sense *cdb; 6706 struct scsi_log_header *header; 6707 6708 CTL_DEBUG_PRINT(("ctl_log_sense\n")); 6709 6710 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6711 cdb = (struct scsi_log_sense *)ctsio->cdb; 6712 pc = (cdb->page & SLS_PAGE_CTRL_MASK) >> 6; 6713 page_code = cdb->page & SLS_PAGE_CODE; 6714 subpage = cdb->subpage; 6715 alloc_len = scsi_2btoul(cdb->length); 6716 6717 page_index = NULL; 6718 for (i = 0; i < CTL_NUM_LOG_PAGES; i++) { 6719 page_index = &lun->log_pages.index[i]; 6720 6721 /* Look for the right page code */ 6722 if ((page_index->page_code & SL_PAGE_CODE) != page_code) 6723 continue; 6724 6725 /* Look for the right subpage or the subpage wildcard*/ 6726 if (page_index->subpage != subpage) 6727 continue; 6728 6729 break; 6730 } 6731 if (i >= CTL_NUM_LOG_PAGES) { 6732 ctl_set_invalid_field(ctsio, 6733 /*sks_valid*/ 1, 6734 /*command*/ 1, 6735 /*field*/ 2, 6736 /*bit_valid*/ 0, 6737 /*bit*/ 0); 6738 ctl_done((union ctl_io *)ctsio); 6739 return (CTL_RETVAL_COMPLETE); 6740 } 6741 6742 total_len = sizeof(struct scsi_log_header) + page_index->page_len; 6743 6744 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6745 ctsio->kern_sg_entries = 0; 6746 ctsio->kern_data_resid = 0; 6747 ctsio->kern_rel_offset = 0; 6748 if (total_len < alloc_len) { 6749 ctsio->residual = alloc_len - total_len; 6750 ctsio->kern_data_len = total_len; 6751 ctsio->kern_total_len = total_len; 6752 } else { 6753 ctsio->residual = 0; 6754 ctsio->kern_data_len = alloc_len; 6755 ctsio->kern_total_len = alloc_len; 6756 } 6757 6758 header = (struct scsi_log_header *)ctsio->kern_data_ptr; 6759 header->page = page_index->page_code; 6760 if (page_index->subpage) { 6761 header->page |= SL_SPF; 6762 header->subpage = page_index->subpage; 6763 } 6764 scsi_ulto2b(page_index->page_len, header->datalen); 6765 6766 /* 6767 * Call the handler, if it exists, to update the 6768 * page to the latest values. 6769 */ 6770 if (page_index->sense_handler != NULL) 6771 page_index->sense_handler(ctsio, page_index, pc); 6772 6773 memcpy(header + 1, page_index->page_data, page_index->page_len); 6774 6775 ctl_set_success(ctsio); 6776 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6777 ctsio->be_move_done = ctl_config_move_done; 6778 ctl_datamove((union ctl_io *)ctsio); 6779 return (CTL_RETVAL_COMPLETE); 6780} 6781 6782int 6783ctl_read_capacity(struct ctl_scsiio *ctsio) 6784{ 6785 struct scsi_read_capacity *cdb; 6786 struct scsi_read_capacity_data *data; 6787 struct ctl_lun *lun; 6788 uint32_t lba; 6789 6790 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 6791 6792 cdb = (struct scsi_read_capacity *)ctsio->cdb; 6793 6794 lba = scsi_4btoul(cdb->addr); 6795 if (((cdb->pmi & SRC_PMI) == 0) 6796 && (lba != 0)) { 6797 ctl_set_invalid_field(/*ctsio*/ ctsio, 6798 /*sks_valid*/ 1, 6799 /*command*/ 1, 6800 /*field*/ 2, 6801 /*bit_valid*/ 0, 6802 /*bit*/ 0); 6803 ctl_done((union ctl_io *)ctsio); 6804 return (CTL_RETVAL_COMPLETE); 6805 } 6806 6807 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6808 6809 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6810 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 6811 ctsio->residual = 0; 6812 ctsio->kern_data_len = sizeof(*data); 6813 ctsio->kern_total_len = sizeof(*data); 6814 ctsio->kern_data_resid = 0; 6815 ctsio->kern_rel_offset = 0; 6816 ctsio->kern_sg_entries = 0; 6817 6818 /* 6819 * If the maximum LBA is greater than 0xfffffffe, the user must 6820 * issue a SERVICE ACTION IN (16) command, with the read capacity 6821 * serivce action set. 6822 */ 6823 if (lun->be_lun->maxlba > 0xfffffffe) 6824 scsi_ulto4b(0xffffffff, data->addr); 6825 else 6826 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 6827 6828 /* 6829 * XXX KDM this may not be 512 bytes... 6830 */ 6831 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6832 6833 ctl_set_success(ctsio); 6834 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6835 ctsio->be_move_done = ctl_config_move_done; 6836 ctl_datamove((union ctl_io *)ctsio); 6837 return (CTL_RETVAL_COMPLETE); 6838} 6839 6840int 6841ctl_read_capacity_16(struct ctl_scsiio *ctsio) 6842{ 6843 struct scsi_read_capacity_16 *cdb; 6844 struct scsi_read_capacity_data_long *data; 6845 struct ctl_lun *lun; 6846 uint64_t lba; 6847 uint32_t alloc_len; 6848 6849 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 6850 6851 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 6852 6853 alloc_len = scsi_4btoul(cdb->alloc_len); 6854 lba = scsi_8btou64(cdb->addr); 6855 6856 if ((cdb->reladr & SRC16_PMI) 6857 && (lba != 0)) { 6858 ctl_set_invalid_field(/*ctsio*/ ctsio, 6859 /*sks_valid*/ 1, 6860 /*command*/ 1, 6861 /*field*/ 2, 6862 /*bit_valid*/ 0, 6863 /*bit*/ 0); 6864 ctl_done((union ctl_io *)ctsio); 6865 return (CTL_RETVAL_COMPLETE); 6866 } 6867 6868 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6869 6870 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6871 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 6872 6873 if (sizeof(*data) < alloc_len) { 6874 ctsio->residual = alloc_len - sizeof(*data); 6875 ctsio->kern_data_len = sizeof(*data); 6876 ctsio->kern_total_len = sizeof(*data); 6877 } else { 6878 ctsio->residual = 0; 6879 ctsio->kern_data_len = alloc_len; 6880 ctsio->kern_total_len = alloc_len; 6881 } 6882 ctsio->kern_data_resid = 0; 6883 ctsio->kern_rel_offset = 0; 6884 ctsio->kern_sg_entries = 0; 6885 6886 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 6887 /* XXX KDM this may not be 512 bytes... */ 6888 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6889 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 6890 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 6891 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 6892 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 6893 6894 ctl_set_success(ctsio); 6895 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6896 ctsio->be_move_done = ctl_config_move_done; 6897 ctl_datamove((union ctl_io *)ctsio); 6898 return (CTL_RETVAL_COMPLETE); 6899} 6900 6901int 6902ctl_get_lba_status(struct ctl_scsiio *ctsio) 6903{ 6904 struct scsi_get_lba_status *cdb; 6905 struct scsi_get_lba_status_data *data; 6906 struct ctl_lun *lun; 6907 struct ctl_lba_len_flags *lbalen; 6908 uint64_t lba; 6909 uint32_t alloc_len, total_len; 6910 int retval; 6911 6912 CTL_DEBUG_PRINT(("ctl_get_lba_status\n")); 6913 6914 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6915 cdb = (struct scsi_get_lba_status *)ctsio->cdb; 6916 lba = scsi_8btou64(cdb->addr); 6917 alloc_len = scsi_4btoul(cdb->alloc_len); 6918 6919 if (lba > lun->be_lun->maxlba) { 6920 ctl_set_lba_out_of_range(ctsio); 6921 ctl_done((union ctl_io *)ctsio); 6922 return (CTL_RETVAL_COMPLETE); 6923 } 6924 6925 total_len = sizeof(*data) + sizeof(data->descr[0]); 6926 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6927 data = (struct scsi_get_lba_status_data *)ctsio->kern_data_ptr; 6928 6929 if (total_len < alloc_len) { 6930 ctsio->residual = alloc_len - total_len; 6931 ctsio->kern_data_len = total_len; 6932 ctsio->kern_total_len = total_len; 6933 } else { 6934 ctsio->residual = 0; 6935 ctsio->kern_data_len = alloc_len; 6936 ctsio->kern_total_len = alloc_len; 6937 } 6938 ctsio->kern_data_resid = 0; 6939 ctsio->kern_rel_offset = 0; 6940 ctsio->kern_sg_entries = 0; 6941 6942 /* Fill dummy data in case backend can't tell anything. */ 6943 scsi_ulto4b(4 + sizeof(data->descr[0]), data->length); 6944 scsi_u64to8b(lba, data->descr[0].addr); 6945 scsi_ulto4b(MIN(UINT32_MAX, lun->be_lun->maxlba + 1 - lba), 6946 data->descr[0].length); 6947 data->descr[0].status = 0; /* Mapped or unknown. */ 6948 6949 ctl_set_success(ctsio); 6950 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6951 ctsio->be_move_done = ctl_config_move_done; 6952 6953 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6954 lbalen->lba = lba; 6955 lbalen->len = total_len; 6956 lbalen->flags = 0; 6957 retval = lun->backend->config_read((union ctl_io *)ctsio); 6958 return (CTL_RETVAL_COMPLETE); 6959} 6960 6961int 6962ctl_read_defect(struct ctl_scsiio *ctsio) 6963{ 6964 struct scsi_read_defect_data_10 *ccb10; 6965 struct scsi_read_defect_data_12 *ccb12; 6966 struct scsi_read_defect_data_hdr_10 *data10; 6967 struct scsi_read_defect_data_hdr_12 *data12; 6968 uint32_t alloc_len, data_len; 6969 uint8_t format; 6970 6971 CTL_DEBUG_PRINT(("ctl_read_defect\n")); 6972 6973 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 6974 ccb10 = (struct scsi_read_defect_data_10 *)&ctsio->cdb; 6975 format = ccb10->format; 6976 alloc_len = scsi_2btoul(ccb10->alloc_length); 6977 data_len = sizeof(*data10); 6978 } else { 6979 ccb12 = (struct scsi_read_defect_data_12 *)&ctsio->cdb; 6980 format = ccb12->format; 6981 alloc_len = scsi_4btoul(ccb12->alloc_length); 6982 data_len = sizeof(*data12); 6983 } 6984 if (alloc_len == 0) { 6985 ctl_set_success(ctsio); 6986 ctl_done((union ctl_io *)ctsio); 6987 return (CTL_RETVAL_COMPLETE); 6988 } 6989 6990 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 6991 if (data_len < alloc_len) { 6992 ctsio->residual = alloc_len - data_len; 6993 ctsio->kern_data_len = data_len; 6994 ctsio->kern_total_len = data_len; 6995 } else { 6996 ctsio->residual = 0; 6997 ctsio->kern_data_len = alloc_len; 6998 ctsio->kern_total_len = alloc_len; 6999 } 7000 ctsio->kern_data_resid = 0; 7001 ctsio->kern_rel_offset = 0; 7002 ctsio->kern_sg_entries = 0; 7003 7004 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7005 data10 = (struct scsi_read_defect_data_hdr_10 *) 7006 ctsio->kern_data_ptr; 7007 data10->format = format; 7008 scsi_ulto2b(0, data10->length); 7009 } else { 7010 data12 = (struct scsi_read_defect_data_hdr_12 *) 7011 ctsio->kern_data_ptr; 7012 data12->format = format; 7013 scsi_ulto2b(0, data12->generation); 7014 scsi_ulto4b(0, data12->length); 7015 } 7016 7017 ctl_set_success(ctsio); 7018 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7019 ctsio->be_move_done = ctl_config_move_done; 7020 ctl_datamove((union ctl_io *)ctsio); 7021 return (CTL_RETVAL_COMPLETE); 7022} 7023 7024int 7025ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7026{ 7027 struct scsi_maintenance_in *cdb; 7028 int retval; 7029 int alloc_len, ext, total_len = 0, g, pc, pg, gs, os; 7030 int num_target_port_groups, num_target_ports; 7031 struct ctl_lun *lun; 7032 struct ctl_softc *softc; 7033 struct ctl_port *port; 7034 struct scsi_target_group_data *rtg_ptr; 7035 struct scsi_target_group_data_extended *rtg_ext_ptr; 7036 struct scsi_target_port_group_descriptor *tpg_desc; 7037 7038 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7039 7040 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7041 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7042 softc = lun->ctl_softc; 7043 7044 retval = CTL_RETVAL_COMPLETE; 7045 7046 switch (cdb->byte2 & STG_PDF_MASK) { 7047 case STG_PDF_LENGTH: 7048 ext = 0; 7049 break; 7050 case STG_PDF_EXTENDED: 7051 ext = 1; 7052 break; 7053 default: 7054 ctl_set_invalid_field(/*ctsio*/ ctsio, 7055 /*sks_valid*/ 1, 7056 /*command*/ 1, 7057 /*field*/ 2, 7058 /*bit_valid*/ 1, 7059 /*bit*/ 5); 7060 ctl_done((union ctl_io *)ctsio); 7061 return(retval); 7062 } 7063 7064 if (softc->is_single) 7065 num_target_port_groups = 1; 7066 else 7067 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7068 num_target_ports = 0; 7069 mtx_lock(&softc->ctl_lock); 7070 STAILQ_FOREACH(port, &softc->port_list, links) { 7071 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7072 continue; 7073 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 7074 continue; 7075 num_target_ports++; 7076 } 7077 mtx_unlock(&softc->ctl_lock); 7078 7079 if (ext) 7080 total_len = sizeof(struct scsi_target_group_data_extended); 7081 else 7082 total_len = sizeof(struct scsi_target_group_data); 7083 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7084 num_target_port_groups + 7085 sizeof(struct scsi_target_port_descriptor) * num_target_ports; 7086 7087 alloc_len = scsi_4btoul(cdb->length); 7088 7089 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7090 7091 ctsio->kern_sg_entries = 0; 7092 7093 if (total_len < alloc_len) { 7094 ctsio->residual = alloc_len - total_len; 7095 ctsio->kern_data_len = total_len; 7096 ctsio->kern_total_len = total_len; 7097 } else { 7098 ctsio->residual = 0; 7099 ctsio->kern_data_len = alloc_len; 7100 ctsio->kern_total_len = alloc_len; 7101 } 7102 ctsio->kern_data_resid = 0; 7103 ctsio->kern_rel_offset = 0; 7104 7105 if (ext) { 7106 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7107 ctsio->kern_data_ptr; 7108 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7109 rtg_ext_ptr->format_type = 0x10; 7110 rtg_ext_ptr->implicit_transition_time = 0; 7111 tpg_desc = &rtg_ext_ptr->groups[0]; 7112 } else { 7113 rtg_ptr = (struct scsi_target_group_data *) 7114 ctsio->kern_data_ptr; 7115 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7116 tpg_desc = &rtg_ptr->groups[0]; 7117 } 7118 7119 mtx_lock(&softc->ctl_lock); 7120 pg = softc->port_min / softc->port_cnt; 7121 if (softc->ha_link == CTL_HA_LINK_OFFLINE) 7122 gs = TPG_ASYMMETRIC_ACCESS_UNAVAILABLE; 7123 else if (softc->ha_link == CTL_HA_LINK_UNKNOWN) 7124 gs = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7125 else if (softc->ha_mode == CTL_HA_MODE_ACT_STBY) 7126 gs = TPG_ASYMMETRIC_ACCESS_STANDBY; 7127 else 7128 gs = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7129 if (lun->flags & CTL_LUN_PRIMARY_SC) { 7130 os = gs; 7131 gs = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7132 } else 7133 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7134 for (g = 0; g < num_target_port_groups; g++) { 7135 tpg_desc->pref_state = (g == pg) ? gs : os; 7136 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP | 7137 TPG_U_SUP | TPG_T_SUP; 7138 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7139 tpg_desc->status = TPG_IMPLICIT; 7140 pc = 0; 7141 STAILQ_FOREACH(port, &softc->port_list, links) { 7142 if (port->targ_port < g * softc->port_cnt || 7143 port->targ_port >= (g + 1) * softc->port_cnt) 7144 continue; 7145 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7146 continue; 7147 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 7148 continue; 7149 scsi_ulto2b(port->targ_port, tpg_desc->descriptors[pc]. 7150 relative_target_port_identifier); 7151 pc++; 7152 } 7153 tpg_desc->target_port_count = pc; 7154 tpg_desc = (struct scsi_target_port_group_descriptor *) 7155 &tpg_desc->descriptors[pc]; 7156 } 7157 mtx_unlock(&softc->ctl_lock); 7158 7159 ctl_set_success(ctsio); 7160 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7161 ctsio->be_move_done = ctl_config_move_done; 7162 ctl_datamove((union ctl_io *)ctsio); 7163 return(retval); 7164} 7165 7166int 7167ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7168{ 7169 struct ctl_lun *lun; 7170 struct scsi_report_supported_opcodes *cdb; 7171 const struct ctl_cmd_entry *entry, *sentry; 7172 struct scsi_report_supported_opcodes_all *all; 7173 struct scsi_report_supported_opcodes_descr *descr; 7174 struct scsi_report_supported_opcodes_one *one; 7175 int retval; 7176 int alloc_len, total_len; 7177 int opcode, service_action, i, j, num; 7178 7179 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7180 7181 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7182 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7183 7184 retval = CTL_RETVAL_COMPLETE; 7185 7186 opcode = cdb->requested_opcode; 7187 service_action = scsi_2btoul(cdb->requested_service_action); 7188 switch (cdb->options & RSO_OPTIONS_MASK) { 7189 case RSO_OPTIONS_ALL: 7190 num = 0; 7191 for (i = 0; i < 256; i++) { 7192 entry = &ctl_cmd_table[i]; 7193 if (entry->flags & CTL_CMD_FLAG_SA5) { 7194 for (j = 0; j < 32; j++) { 7195 sentry = &((const struct ctl_cmd_entry *) 7196 entry->execute)[j]; 7197 if (ctl_cmd_applicable( 7198 lun->be_lun->lun_type, sentry)) 7199 num++; 7200 } 7201 } else { 7202 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7203 entry)) 7204 num++; 7205 } 7206 } 7207 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7208 num * sizeof(struct scsi_report_supported_opcodes_descr); 7209 break; 7210 case RSO_OPTIONS_OC: 7211 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7212 ctl_set_invalid_field(/*ctsio*/ ctsio, 7213 /*sks_valid*/ 1, 7214 /*command*/ 1, 7215 /*field*/ 2, 7216 /*bit_valid*/ 1, 7217 /*bit*/ 2); 7218 ctl_done((union ctl_io *)ctsio); 7219 return (CTL_RETVAL_COMPLETE); 7220 } 7221 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7222 break; 7223 case RSO_OPTIONS_OC_SA: 7224 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7225 service_action >= 32) { 7226 ctl_set_invalid_field(/*ctsio*/ ctsio, 7227 /*sks_valid*/ 1, 7228 /*command*/ 1, 7229 /*field*/ 2, 7230 /*bit_valid*/ 1, 7231 /*bit*/ 2); 7232 ctl_done((union ctl_io *)ctsio); 7233 return (CTL_RETVAL_COMPLETE); 7234 } 7235 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7236 break; 7237 default: 7238 ctl_set_invalid_field(/*ctsio*/ ctsio, 7239 /*sks_valid*/ 1, 7240 /*command*/ 1, 7241 /*field*/ 2, 7242 /*bit_valid*/ 1, 7243 /*bit*/ 2); 7244 ctl_done((union ctl_io *)ctsio); 7245 return (CTL_RETVAL_COMPLETE); 7246 } 7247 7248 alloc_len = scsi_4btoul(cdb->length); 7249 7250 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7251 7252 ctsio->kern_sg_entries = 0; 7253 7254 if (total_len < alloc_len) { 7255 ctsio->residual = alloc_len - total_len; 7256 ctsio->kern_data_len = total_len; 7257 ctsio->kern_total_len = total_len; 7258 } else { 7259 ctsio->residual = 0; 7260 ctsio->kern_data_len = alloc_len; 7261 ctsio->kern_total_len = alloc_len; 7262 } 7263 ctsio->kern_data_resid = 0; 7264 ctsio->kern_rel_offset = 0; 7265 7266 switch (cdb->options & RSO_OPTIONS_MASK) { 7267 case RSO_OPTIONS_ALL: 7268 all = (struct scsi_report_supported_opcodes_all *) 7269 ctsio->kern_data_ptr; 7270 num = 0; 7271 for (i = 0; i < 256; i++) { 7272 entry = &ctl_cmd_table[i]; 7273 if (entry->flags & CTL_CMD_FLAG_SA5) { 7274 for (j = 0; j < 32; j++) { 7275 sentry = &((const struct ctl_cmd_entry *) 7276 entry->execute)[j]; 7277 if (!ctl_cmd_applicable( 7278 lun->be_lun->lun_type, sentry)) 7279 continue; 7280 descr = &all->descr[num++]; 7281 descr->opcode = i; 7282 scsi_ulto2b(j, descr->service_action); 7283 descr->flags = RSO_SERVACTV; 7284 scsi_ulto2b(sentry->length, 7285 descr->cdb_length); 7286 } 7287 } else { 7288 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7289 entry)) 7290 continue; 7291 descr = &all->descr[num++]; 7292 descr->opcode = i; 7293 scsi_ulto2b(0, descr->service_action); 7294 descr->flags = 0; 7295 scsi_ulto2b(entry->length, descr->cdb_length); 7296 } 7297 } 7298 scsi_ulto4b( 7299 num * sizeof(struct scsi_report_supported_opcodes_descr), 7300 all->length); 7301 break; 7302 case RSO_OPTIONS_OC: 7303 one = (struct scsi_report_supported_opcodes_one *) 7304 ctsio->kern_data_ptr; 7305 entry = &ctl_cmd_table[opcode]; 7306 goto fill_one; 7307 case RSO_OPTIONS_OC_SA: 7308 one = (struct scsi_report_supported_opcodes_one *) 7309 ctsio->kern_data_ptr; 7310 entry = &ctl_cmd_table[opcode]; 7311 entry = &((const struct ctl_cmd_entry *) 7312 entry->execute)[service_action]; 7313fill_one: 7314 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7315 one->support = 3; 7316 scsi_ulto2b(entry->length, one->cdb_length); 7317 one->cdb_usage[0] = opcode; 7318 memcpy(&one->cdb_usage[1], entry->usage, 7319 entry->length - 1); 7320 } else 7321 one->support = 1; 7322 break; 7323 } 7324 7325 ctl_set_success(ctsio); 7326 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7327 ctsio->be_move_done = ctl_config_move_done; 7328 ctl_datamove((union ctl_io *)ctsio); 7329 return(retval); 7330} 7331 7332int 7333ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7334{ 7335 struct scsi_report_supported_tmf *cdb; 7336 struct scsi_report_supported_tmf_data *data; 7337 int retval; 7338 int alloc_len, total_len; 7339 7340 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7341 7342 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7343 7344 retval = CTL_RETVAL_COMPLETE; 7345 7346 total_len = sizeof(struct scsi_report_supported_tmf_data); 7347 alloc_len = scsi_4btoul(cdb->length); 7348 7349 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7350 7351 ctsio->kern_sg_entries = 0; 7352 7353 if (total_len < alloc_len) { 7354 ctsio->residual = alloc_len - total_len; 7355 ctsio->kern_data_len = total_len; 7356 ctsio->kern_total_len = total_len; 7357 } else { 7358 ctsio->residual = 0; 7359 ctsio->kern_data_len = alloc_len; 7360 ctsio->kern_total_len = alloc_len; 7361 } 7362 ctsio->kern_data_resid = 0; 7363 ctsio->kern_rel_offset = 0; 7364 7365 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7366 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_QTS | 7367 RST_TRS; 7368 data->byte2 |= RST_QAES | RST_QTSS | RST_ITNRS; 7369 7370 ctl_set_success(ctsio); 7371 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7372 ctsio->be_move_done = ctl_config_move_done; 7373 ctl_datamove((union ctl_io *)ctsio); 7374 return (retval); 7375} 7376 7377int 7378ctl_report_timestamp(struct ctl_scsiio *ctsio) 7379{ 7380 struct scsi_report_timestamp *cdb; 7381 struct scsi_report_timestamp_data *data; 7382 struct timeval tv; 7383 int64_t timestamp; 7384 int retval; 7385 int alloc_len, total_len; 7386 7387 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7388 7389 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7390 7391 retval = CTL_RETVAL_COMPLETE; 7392 7393 total_len = sizeof(struct scsi_report_timestamp_data); 7394 alloc_len = scsi_4btoul(cdb->length); 7395 7396 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7397 7398 ctsio->kern_sg_entries = 0; 7399 7400 if (total_len < alloc_len) { 7401 ctsio->residual = alloc_len - total_len; 7402 ctsio->kern_data_len = total_len; 7403 ctsio->kern_total_len = total_len; 7404 } else { 7405 ctsio->residual = 0; 7406 ctsio->kern_data_len = alloc_len; 7407 ctsio->kern_total_len = alloc_len; 7408 } 7409 ctsio->kern_data_resid = 0; 7410 ctsio->kern_rel_offset = 0; 7411 7412 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7413 scsi_ulto2b(sizeof(*data) - 2, data->length); 7414 data->origin = RTS_ORIG_OUTSIDE; 7415 getmicrotime(&tv); 7416 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7417 scsi_ulto4b(timestamp >> 16, data->timestamp); 7418 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7419 7420 ctl_set_success(ctsio); 7421 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7422 ctsio->be_move_done = ctl_config_move_done; 7423 ctl_datamove((union ctl_io *)ctsio); 7424 return (retval); 7425} 7426 7427int 7428ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7429{ 7430 struct scsi_per_res_in *cdb; 7431 int alloc_len, total_len = 0; 7432 /* struct scsi_per_res_in_rsrv in_data; */ 7433 struct ctl_lun *lun; 7434 struct ctl_softc *softc; 7435 uint64_t key; 7436 7437 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7438 7439 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7440 7441 alloc_len = scsi_2btoul(cdb->length); 7442 7443 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7444 softc = lun->ctl_softc; 7445 7446retry: 7447 mtx_lock(&lun->lun_lock); 7448 switch (cdb->action) { 7449 case SPRI_RK: /* read keys */ 7450 total_len = sizeof(struct scsi_per_res_in_keys) + 7451 lun->pr_key_count * 7452 sizeof(struct scsi_per_res_key); 7453 break; 7454 case SPRI_RR: /* read reservation */ 7455 if (lun->flags & CTL_LUN_PR_RESERVED) 7456 total_len = sizeof(struct scsi_per_res_in_rsrv); 7457 else 7458 total_len = sizeof(struct scsi_per_res_in_header); 7459 break; 7460 case SPRI_RC: /* report capabilities */ 7461 total_len = sizeof(struct scsi_per_res_cap); 7462 break; 7463 case SPRI_RS: /* read full status */ 7464 total_len = sizeof(struct scsi_per_res_in_header) + 7465 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7466 lun->pr_key_count; 7467 break; 7468 default: 7469 panic("Invalid PR type %x", cdb->action); 7470 } 7471 mtx_unlock(&lun->lun_lock); 7472 7473 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7474 7475 if (total_len < alloc_len) { 7476 ctsio->residual = alloc_len - total_len; 7477 ctsio->kern_data_len = total_len; 7478 ctsio->kern_total_len = total_len; 7479 } else { 7480 ctsio->residual = 0; 7481 ctsio->kern_data_len = alloc_len; 7482 ctsio->kern_total_len = alloc_len; 7483 } 7484 7485 ctsio->kern_data_resid = 0; 7486 ctsio->kern_rel_offset = 0; 7487 ctsio->kern_sg_entries = 0; 7488 7489 mtx_lock(&lun->lun_lock); 7490 switch (cdb->action) { 7491 case SPRI_RK: { // read keys 7492 struct scsi_per_res_in_keys *res_keys; 7493 int i, key_count; 7494 7495 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7496 7497 /* 7498 * We had to drop the lock to allocate our buffer, which 7499 * leaves time for someone to come in with another 7500 * persistent reservation. (That is unlikely, though, 7501 * since this should be the only persistent reservation 7502 * command active right now.) 7503 */ 7504 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7505 (lun->pr_key_count * 7506 sizeof(struct scsi_per_res_key)))){ 7507 mtx_unlock(&lun->lun_lock); 7508 free(ctsio->kern_data_ptr, M_CTL); 7509 printf("%s: reservation length changed, retrying\n", 7510 __func__); 7511 goto retry; 7512 } 7513 7514 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7515 7516 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7517 lun->pr_key_count, res_keys->header.length); 7518 7519 for (i = 0, key_count = 0; i < CTL_MAX_INITIATORS; i++) { 7520 if ((key = ctl_get_prkey(lun, i)) == 0) 7521 continue; 7522 7523 /* 7524 * We used lun->pr_key_count to calculate the 7525 * size to allocate. If it turns out the number of 7526 * initiators with the registered flag set is 7527 * larger than that (i.e. they haven't been kept in 7528 * sync), we've got a problem. 7529 */ 7530 if (key_count >= lun->pr_key_count) { 7531#ifdef NEEDTOPORT 7532 csevent_log(CSC_CTL | CSC_SHELF_SW | 7533 CTL_PR_ERROR, 7534 csevent_LogType_Fault, 7535 csevent_AlertLevel_Yellow, 7536 csevent_FRU_ShelfController, 7537 csevent_FRU_Firmware, 7538 csevent_FRU_Unknown, 7539 "registered keys %d >= key " 7540 "count %d", key_count, 7541 lun->pr_key_count); 7542#endif 7543 key_count++; 7544 continue; 7545 } 7546 scsi_u64to8b(key, res_keys->keys[key_count].key); 7547 key_count++; 7548 } 7549 break; 7550 } 7551 case SPRI_RR: { // read reservation 7552 struct scsi_per_res_in_rsrv *res; 7553 int tmp_len, header_only; 7554 7555 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7556 7557 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7558 7559 if (lun->flags & CTL_LUN_PR_RESERVED) 7560 { 7561 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7562 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7563 res->header.length); 7564 header_only = 0; 7565 } else { 7566 tmp_len = sizeof(struct scsi_per_res_in_header); 7567 scsi_ulto4b(0, res->header.length); 7568 header_only = 1; 7569 } 7570 7571 /* 7572 * We had to drop the lock to allocate our buffer, which 7573 * leaves time for someone to come in with another 7574 * persistent reservation. (That is unlikely, though, 7575 * since this should be the only persistent reservation 7576 * command active right now.) 7577 */ 7578 if (tmp_len != total_len) { 7579 mtx_unlock(&lun->lun_lock); 7580 free(ctsio->kern_data_ptr, M_CTL); 7581 printf("%s: reservation status changed, retrying\n", 7582 __func__); 7583 goto retry; 7584 } 7585 7586 /* 7587 * No reservation held, so we're done. 7588 */ 7589 if (header_only != 0) 7590 break; 7591 7592 /* 7593 * If the registration is an All Registrants type, the key 7594 * is 0, since it doesn't really matter. 7595 */ 7596 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7597 scsi_u64to8b(ctl_get_prkey(lun, lun->pr_res_idx), 7598 res->data.reservation); 7599 } 7600 res->data.scopetype = lun->res_type; 7601 break; 7602 } 7603 case SPRI_RC: //report capabilities 7604 { 7605 struct scsi_per_res_cap *res_cap; 7606 uint16_t type_mask; 7607 7608 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7609 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7610 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_5; 7611 type_mask = SPRI_TM_WR_EX_AR | 7612 SPRI_TM_EX_AC_RO | 7613 SPRI_TM_WR_EX_RO | 7614 SPRI_TM_EX_AC | 7615 SPRI_TM_WR_EX | 7616 SPRI_TM_EX_AC_AR; 7617 scsi_ulto2b(type_mask, res_cap->type_mask); 7618 break; 7619 } 7620 case SPRI_RS: { // read full status 7621 struct scsi_per_res_in_full *res_status; 7622 struct scsi_per_res_in_full_desc *res_desc; 7623 struct ctl_port *port; 7624 int i, len; 7625 7626 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7627 7628 /* 7629 * We had to drop the lock to allocate our buffer, which 7630 * leaves time for someone to come in with another 7631 * persistent reservation. (That is unlikely, though, 7632 * since this should be the only persistent reservation 7633 * command active right now.) 7634 */ 7635 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7636 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7637 lun->pr_key_count)){ 7638 mtx_unlock(&lun->lun_lock); 7639 free(ctsio->kern_data_ptr, M_CTL); 7640 printf("%s: reservation length changed, retrying\n", 7641 __func__); 7642 goto retry; 7643 } 7644 7645 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 7646 7647 res_desc = &res_status->desc[0]; 7648 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7649 if ((key = ctl_get_prkey(lun, i)) == 0) 7650 continue; 7651 7652 scsi_u64to8b(key, res_desc->res_key.key); 7653 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7654 (lun->pr_res_idx == i || 7655 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7656 res_desc->flags = SPRI_FULL_R_HOLDER; 7657 res_desc->scopetype = lun->res_type; 7658 } 7659 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7660 res_desc->rel_trgt_port_id); 7661 len = 0; 7662 port = softc->ctl_ports[i / CTL_MAX_INIT_PER_PORT]; 7663 if (port != NULL) 7664 len = ctl_create_iid(port, 7665 i % CTL_MAX_INIT_PER_PORT, 7666 res_desc->transport_id); 7667 scsi_ulto4b(len, res_desc->additional_length); 7668 res_desc = (struct scsi_per_res_in_full_desc *) 7669 &res_desc->transport_id[len]; 7670 } 7671 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7672 res_status->header.length); 7673 break; 7674 } 7675 default: 7676 /* 7677 * This is a bug, because we just checked for this above, 7678 * and should have returned an error. 7679 */ 7680 panic("Invalid PR type %x", cdb->action); 7681 break; /* NOTREACHED */ 7682 } 7683 mtx_unlock(&lun->lun_lock); 7684 7685 ctl_set_success(ctsio); 7686 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7687 ctsio->be_move_done = ctl_config_move_done; 7688 ctl_datamove((union ctl_io *)ctsio); 7689 return (CTL_RETVAL_COMPLETE); 7690} 7691 7692/* 7693 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7694 * it should return. 7695 */ 7696static int 7697ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7698 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7699 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7700 struct scsi_per_res_out_parms* param) 7701{ 7702 union ctl_ha_msg persis_io; 7703 int i; 7704 7705 mtx_lock(&lun->lun_lock); 7706 if (sa_res_key == 0) { 7707 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7708 /* validate scope and type */ 7709 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7710 SPR_LU_SCOPE) { 7711 mtx_unlock(&lun->lun_lock); 7712 ctl_set_invalid_field(/*ctsio*/ ctsio, 7713 /*sks_valid*/ 1, 7714 /*command*/ 1, 7715 /*field*/ 2, 7716 /*bit_valid*/ 1, 7717 /*bit*/ 4); 7718 ctl_done((union ctl_io *)ctsio); 7719 return (1); 7720 } 7721 7722 if (type>8 || type==2 || type==4 || type==0) { 7723 mtx_unlock(&lun->lun_lock); 7724 ctl_set_invalid_field(/*ctsio*/ ctsio, 7725 /*sks_valid*/ 1, 7726 /*command*/ 1, 7727 /*field*/ 2, 7728 /*bit_valid*/ 1, 7729 /*bit*/ 0); 7730 ctl_done((union ctl_io *)ctsio); 7731 return (1); 7732 } 7733 7734 /* 7735 * Unregister everybody else and build UA for 7736 * them 7737 */ 7738 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7739 if (i == residx || ctl_get_prkey(lun, i) == 0) 7740 continue; 7741 7742 ctl_clr_prkey(lun, i); 7743 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7744 } 7745 lun->pr_key_count = 1; 7746 lun->res_type = type; 7747 if (lun->res_type != SPR_TYPE_WR_EX_AR 7748 && lun->res_type != SPR_TYPE_EX_AC_AR) 7749 lun->pr_res_idx = residx; 7750 lun->PRGeneration++; 7751 mtx_unlock(&lun->lun_lock); 7752 7753 /* send msg to other side */ 7754 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7755 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7756 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7757 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7758 persis_io.pr.pr_info.res_type = type; 7759 memcpy(persis_io.pr.pr_info.sa_res_key, 7760 param->serv_act_res_key, 7761 sizeof(param->serv_act_res_key)); 7762 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7763 sizeof(persis_io.pr), M_WAITOK); 7764 } else { 7765 /* not all registrants */ 7766 mtx_unlock(&lun->lun_lock); 7767 free(ctsio->kern_data_ptr, M_CTL); 7768 ctl_set_invalid_field(ctsio, 7769 /*sks_valid*/ 1, 7770 /*command*/ 0, 7771 /*field*/ 8, 7772 /*bit_valid*/ 0, 7773 /*bit*/ 0); 7774 ctl_done((union ctl_io *)ctsio); 7775 return (1); 7776 } 7777 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 7778 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 7779 int found = 0; 7780 7781 if (res_key == sa_res_key) { 7782 /* special case */ 7783 /* 7784 * The spec implies this is not good but doesn't 7785 * say what to do. There are two choices either 7786 * generate a res conflict or check condition 7787 * with illegal field in parameter data. Since 7788 * that is what is done when the sa_res_key is 7789 * zero I'll take that approach since this has 7790 * to do with the sa_res_key. 7791 */ 7792 mtx_unlock(&lun->lun_lock); 7793 free(ctsio->kern_data_ptr, M_CTL); 7794 ctl_set_invalid_field(ctsio, 7795 /*sks_valid*/ 1, 7796 /*command*/ 0, 7797 /*field*/ 8, 7798 /*bit_valid*/ 0, 7799 /*bit*/ 0); 7800 ctl_done((union ctl_io *)ctsio); 7801 return (1); 7802 } 7803 7804 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7805 if (ctl_get_prkey(lun, i) != sa_res_key) 7806 continue; 7807 7808 found = 1; 7809 ctl_clr_prkey(lun, i); 7810 lun->pr_key_count--; 7811 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7812 } 7813 if (!found) { 7814 mtx_unlock(&lun->lun_lock); 7815 free(ctsio->kern_data_ptr, M_CTL); 7816 ctl_set_reservation_conflict(ctsio); 7817 ctl_done((union ctl_io *)ctsio); 7818 return (CTL_RETVAL_COMPLETE); 7819 } 7820 lun->PRGeneration++; 7821 mtx_unlock(&lun->lun_lock); 7822 7823 /* send msg to other side */ 7824 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7825 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7826 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7827 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7828 persis_io.pr.pr_info.res_type = type; 7829 memcpy(persis_io.pr.pr_info.sa_res_key, 7830 param->serv_act_res_key, 7831 sizeof(param->serv_act_res_key)); 7832 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7833 sizeof(persis_io.pr), M_WAITOK); 7834 } else { 7835 /* Reserved but not all registrants */ 7836 /* sa_res_key is res holder */ 7837 if (sa_res_key == ctl_get_prkey(lun, lun->pr_res_idx)) { 7838 /* validate scope and type */ 7839 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7840 SPR_LU_SCOPE) { 7841 mtx_unlock(&lun->lun_lock); 7842 ctl_set_invalid_field(/*ctsio*/ ctsio, 7843 /*sks_valid*/ 1, 7844 /*command*/ 1, 7845 /*field*/ 2, 7846 /*bit_valid*/ 1, 7847 /*bit*/ 4); 7848 ctl_done((union ctl_io *)ctsio); 7849 return (1); 7850 } 7851 7852 if (type>8 || type==2 || type==4 || type==0) { 7853 mtx_unlock(&lun->lun_lock); 7854 ctl_set_invalid_field(/*ctsio*/ ctsio, 7855 /*sks_valid*/ 1, 7856 /*command*/ 1, 7857 /*field*/ 2, 7858 /*bit_valid*/ 1, 7859 /*bit*/ 0); 7860 ctl_done((union ctl_io *)ctsio); 7861 return (1); 7862 } 7863 7864 /* 7865 * Do the following: 7866 * if sa_res_key != res_key remove all 7867 * registrants w/sa_res_key and generate UA 7868 * for these registrants(Registrations 7869 * Preempted) if it wasn't an exclusive 7870 * reservation generate UA(Reservations 7871 * Preempted) for all other registered nexuses 7872 * if the type has changed. Establish the new 7873 * reservation and holder. If res_key and 7874 * sa_res_key are the same do the above 7875 * except don't unregister the res holder. 7876 */ 7877 7878 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7879 if (i == residx || ctl_get_prkey(lun, i) == 0) 7880 continue; 7881 7882 if (sa_res_key == ctl_get_prkey(lun, i)) { 7883 ctl_clr_prkey(lun, i); 7884 lun->pr_key_count--; 7885 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7886 } else if (type != lun->res_type 7887 && (lun->res_type == SPR_TYPE_WR_EX_RO 7888 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 7889 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 7890 } 7891 } 7892 lun->res_type = type; 7893 if (lun->res_type != SPR_TYPE_WR_EX_AR 7894 && lun->res_type != SPR_TYPE_EX_AC_AR) 7895 lun->pr_res_idx = residx; 7896 else 7897 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 7898 lun->PRGeneration++; 7899 mtx_unlock(&lun->lun_lock); 7900 7901 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7902 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7903 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7904 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7905 persis_io.pr.pr_info.res_type = type; 7906 memcpy(persis_io.pr.pr_info.sa_res_key, 7907 param->serv_act_res_key, 7908 sizeof(param->serv_act_res_key)); 7909 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7910 sizeof(persis_io.pr), M_WAITOK); 7911 } else { 7912 /* 7913 * sa_res_key is not the res holder just 7914 * remove registrants 7915 */ 7916 int found=0; 7917 7918 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7919 if (sa_res_key != ctl_get_prkey(lun, i)) 7920 continue; 7921 7922 found = 1; 7923 ctl_clr_prkey(lun, i); 7924 lun->pr_key_count--; 7925 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7926 } 7927 7928 if (!found) { 7929 mtx_unlock(&lun->lun_lock); 7930 free(ctsio->kern_data_ptr, M_CTL); 7931 ctl_set_reservation_conflict(ctsio); 7932 ctl_done((union ctl_io *)ctsio); 7933 return (1); 7934 } 7935 lun->PRGeneration++; 7936 mtx_unlock(&lun->lun_lock); 7937 7938 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7939 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7940 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7941 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7942 persis_io.pr.pr_info.res_type = type; 7943 memcpy(persis_io.pr.pr_info.sa_res_key, 7944 param->serv_act_res_key, 7945 sizeof(param->serv_act_res_key)); 7946 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7947 sizeof(persis_io.pr), M_WAITOK); 7948 } 7949 } 7950 return (0); 7951} 7952 7953static void 7954ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 7955{ 7956 uint64_t sa_res_key; 7957 int i; 7958 7959 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 7960 7961 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 7962 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 7963 || sa_res_key != ctl_get_prkey(lun, lun->pr_res_idx)) { 7964 if (sa_res_key == 0) { 7965 /* 7966 * Unregister everybody else and build UA for 7967 * them 7968 */ 7969 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7970 if (i == msg->pr.pr_info.residx || 7971 ctl_get_prkey(lun, i) == 0) 7972 continue; 7973 7974 ctl_clr_prkey(lun, i); 7975 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7976 } 7977 7978 lun->pr_key_count = 1; 7979 lun->res_type = msg->pr.pr_info.res_type; 7980 if (lun->res_type != SPR_TYPE_WR_EX_AR 7981 && lun->res_type != SPR_TYPE_EX_AC_AR) 7982 lun->pr_res_idx = msg->pr.pr_info.residx; 7983 } else { 7984 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7985 if (sa_res_key == ctl_get_prkey(lun, i)) 7986 continue; 7987 7988 ctl_clr_prkey(lun, i); 7989 lun->pr_key_count--; 7990 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7991 } 7992 } 7993 } else { 7994 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7995 if (i == msg->pr.pr_info.residx || 7996 ctl_get_prkey(lun, i) == 0) 7997 continue; 7998 7999 if (sa_res_key == ctl_get_prkey(lun, i)) { 8000 ctl_clr_prkey(lun, i); 8001 lun->pr_key_count--; 8002 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8003 } else if (msg->pr.pr_info.res_type != lun->res_type 8004 && (lun->res_type == SPR_TYPE_WR_EX_RO 8005 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8006 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8007 } 8008 } 8009 lun->res_type = msg->pr.pr_info.res_type; 8010 if (lun->res_type != SPR_TYPE_WR_EX_AR 8011 && lun->res_type != SPR_TYPE_EX_AC_AR) 8012 lun->pr_res_idx = msg->pr.pr_info.residx; 8013 else 8014 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8015 } 8016 lun->PRGeneration++; 8017 8018} 8019 8020 8021int 8022ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8023{ 8024 int retval; 8025 u_int32_t param_len; 8026 struct scsi_per_res_out *cdb; 8027 struct ctl_lun *lun; 8028 struct scsi_per_res_out_parms* param; 8029 struct ctl_softc *softc; 8030 uint32_t residx; 8031 uint64_t res_key, sa_res_key, key; 8032 uint8_t type; 8033 union ctl_ha_msg persis_io; 8034 int i; 8035 8036 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8037 8038 retval = CTL_RETVAL_COMPLETE; 8039 8040 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8041 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8042 softc = lun->ctl_softc; 8043 8044 /* 8045 * We only support whole-LUN scope. The scope & type are ignored for 8046 * register, register and ignore existing key and clear. 8047 * We sometimes ignore scope and type on preempts too!! 8048 * Verify reservation type here as well. 8049 */ 8050 type = cdb->scope_type & SPR_TYPE_MASK; 8051 if ((cdb->action == SPRO_RESERVE) 8052 || (cdb->action == SPRO_RELEASE)) { 8053 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8054 ctl_set_invalid_field(/*ctsio*/ ctsio, 8055 /*sks_valid*/ 1, 8056 /*command*/ 1, 8057 /*field*/ 2, 8058 /*bit_valid*/ 1, 8059 /*bit*/ 4); 8060 ctl_done((union ctl_io *)ctsio); 8061 return (CTL_RETVAL_COMPLETE); 8062 } 8063 8064 if (type>8 || type==2 || type==4 || type==0) { 8065 ctl_set_invalid_field(/*ctsio*/ ctsio, 8066 /*sks_valid*/ 1, 8067 /*command*/ 1, 8068 /*field*/ 2, 8069 /*bit_valid*/ 1, 8070 /*bit*/ 0); 8071 ctl_done((union ctl_io *)ctsio); 8072 return (CTL_RETVAL_COMPLETE); 8073 } 8074 } 8075 8076 param_len = scsi_4btoul(cdb->length); 8077 8078 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8079 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8080 ctsio->kern_data_len = param_len; 8081 ctsio->kern_total_len = param_len; 8082 ctsio->kern_data_resid = 0; 8083 ctsio->kern_rel_offset = 0; 8084 ctsio->kern_sg_entries = 0; 8085 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8086 ctsio->be_move_done = ctl_config_move_done; 8087 ctl_datamove((union ctl_io *)ctsio); 8088 8089 return (CTL_RETVAL_COMPLETE); 8090 } 8091 8092 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8093 8094 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 8095 res_key = scsi_8btou64(param->res_key.key); 8096 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8097 8098 /* 8099 * Validate the reservation key here except for SPRO_REG_IGNO 8100 * This must be done for all other service actions 8101 */ 8102 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8103 mtx_lock(&lun->lun_lock); 8104 if ((key = ctl_get_prkey(lun, residx)) != 0) { 8105 if (res_key != key) { 8106 /* 8107 * The current key passed in doesn't match 8108 * the one the initiator previously 8109 * registered. 8110 */ 8111 mtx_unlock(&lun->lun_lock); 8112 free(ctsio->kern_data_ptr, M_CTL); 8113 ctl_set_reservation_conflict(ctsio); 8114 ctl_done((union ctl_io *)ctsio); 8115 return (CTL_RETVAL_COMPLETE); 8116 } 8117 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8118 /* 8119 * We are not registered 8120 */ 8121 mtx_unlock(&lun->lun_lock); 8122 free(ctsio->kern_data_ptr, M_CTL); 8123 ctl_set_reservation_conflict(ctsio); 8124 ctl_done((union ctl_io *)ctsio); 8125 return (CTL_RETVAL_COMPLETE); 8126 } else if (res_key != 0) { 8127 /* 8128 * We are not registered and trying to register but 8129 * the register key isn't zero. 8130 */ 8131 mtx_unlock(&lun->lun_lock); 8132 free(ctsio->kern_data_ptr, M_CTL); 8133 ctl_set_reservation_conflict(ctsio); 8134 ctl_done((union ctl_io *)ctsio); 8135 return (CTL_RETVAL_COMPLETE); 8136 } 8137 mtx_unlock(&lun->lun_lock); 8138 } 8139 8140 switch (cdb->action & SPRO_ACTION_MASK) { 8141 case SPRO_REGISTER: 8142 case SPRO_REG_IGNO: { 8143 8144#if 0 8145 printf("Registration received\n"); 8146#endif 8147 8148 /* 8149 * We don't support any of these options, as we report in 8150 * the read capabilities request (see 8151 * ctl_persistent_reserve_in(), above). 8152 */ 8153 if ((param->flags & SPR_SPEC_I_PT) 8154 || (param->flags & SPR_ALL_TG_PT) 8155 || (param->flags & SPR_APTPL)) { 8156 int bit_ptr; 8157 8158 if (param->flags & SPR_APTPL) 8159 bit_ptr = 0; 8160 else if (param->flags & SPR_ALL_TG_PT) 8161 bit_ptr = 2; 8162 else /* SPR_SPEC_I_PT */ 8163 bit_ptr = 3; 8164 8165 free(ctsio->kern_data_ptr, M_CTL); 8166 ctl_set_invalid_field(ctsio, 8167 /*sks_valid*/ 1, 8168 /*command*/ 0, 8169 /*field*/ 20, 8170 /*bit_valid*/ 1, 8171 /*bit*/ bit_ptr); 8172 ctl_done((union ctl_io *)ctsio); 8173 return (CTL_RETVAL_COMPLETE); 8174 } 8175 8176 mtx_lock(&lun->lun_lock); 8177 8178 /* 8179 * The initiator wants to clear the 8180 * key/unregister. 8181 */ 8182 if (sa_res_key == 0) { 8183 if ((res_key == 0 8184 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8185 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8186 && ctl_get_prkey(lun, residx) == 0)) { 8187 mtx_unlock(&lun->lun_lock); 8188 goto done; 8189 } 8190 8191 ctl_clr_prkey(lun, residx); 8192 lun->pr_key_count--; 8193 8194 if (residx == lun->pr_res_idx) { 8195 lun->flags &= ~CTL_LUN_PR_RESERVED; 8196 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8197 8198 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8199 || lun->res_type == SPR_TYPE_EX_AC_RO) 8200 && lun->pr_key_count) { 8201 /* 8202 * If the reservation is a registrants 8203 * only type we need to generate a UA 8204 * for other registered inits. The 8205 * sense code should be RESERVATIONS 8206 * RELEASED 8207 */ 8208 8209 for (i = softc->init_min; i < softc->init_max; i++){ 8210 if (ctl_get_prkey(lun, i) == 0) 8211 continue; 8212 ctl_est_ua(lun, i, 8213 CTL_UA_RES_RELEASE); 8214 } 8215 } 8216 lun->res_type = 0; 8217 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8218 if (lun->pr_key_count==0) { 8219 lun->flags &= ~CTL_LUN_PR_RESERVED; 8220 lun->res_type = 0; 8221 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8222 } 8223 } 8224 lun->PRGeneration++; 8225 mtx_unlock(&lun->lun_lock); 8226 8227 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8228 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8229 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8230 persis_io.pr.pr_info.residx = residx; 8231 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8232 sizeof(persis_io.pr), M_WAITOK); 8233 } else /* sa_res_key != 0 */ { 8234 8235 /* 8236 * If we aren't registered currently then increment 8237 * the key count and set the registered flag. 8238 */ 8239 ctl_alloc_prkey(lun, residx); 8240 if (ctl_get_prkey(lun, residx) == 0) 8241 lun->pr_key_count++; 8242 ctl_set_prkey(lun, residx, sa_res_key); 8243 lun->PRGeneration++; 8244 mtx_unlock(&lun->lun_lock); 8245 8246 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8247 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8248 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8249 persis_io.pr.pr_info.residx = residx; 8250 memcpy(persis_io.pr.pr_info.sa_res_key, 8251 param->serv_act_res_key, 8252 sizeof(param->serv_act_res_key)); 8253 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8254 sizeof(persis_io.pr), M_WAITOK); 8255 } 8256 8257 break; 8258 } 8259 case SPRO_RESERVE: 8260#if 0 8261 printf("Reserve executed type %d\n", type); 8262#endif 8263 mtx_lock(&lun->lun_lock); 8264 if (lun->flags & CTL_LUN_PR_RESERVED) { 8265 /* 8266 * if this isn't the reservation holder and it's 8267 * not a "all registrants" type or if the type is 8268 * different then we have a conflict 8269 */ 8270 if ((lun->pr_res_idx != residx 8271 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8272 || lun->res_type != type) { 8273 mtx_unlock(&lun->lun_lock); 8274 free(ctsio->kern_data_ptr, M_CTL); 8275 ctl_set_reservation_conflict(ctsio); 8276 ctl_done((union ctl_io *)ctsio); 8277 return (CTL_RETVAL_COMPLETE); 8278 } 8279 mtx_unlock(&lun->lun_lock); 8280 } else /* create a reservation */ { 8281 /* 8282 * If it's not an "all registrants" type record 8283 * reservation holder 8284 */ 8285 if (type != SPR_TYPE_WR_EX_AR 8286 && type != SPR_TYPE_EX_AC_AR) 8287 lun->pr_res_idx = residx; /* Res holder */ 8288 else 8289 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8290 8291 lun->flags |= CTL_LUN_PR_RESERVED; 8292 lun->res_type = type; 8293 8294 mtx_unlock(&lun->lun_lock); 8295 8296 /* send msg to other side */ 8297 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8298 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8299 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8300 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8301 persis_io.pr.pr_info.res_type = type; 8302 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8303 sizeof(persis_io.pr), M_WAITOK); 8304 } 8305 break; 8306 8307 case SPRO_RELEASE: 8308 mtx_lock(&lun->lun_lock); 8309 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8310 /* No reservation exists return good status */ 8311 mtx_unlock(&lun->lun_lock); 8312 goto done; 8313 } 8314 /* 8315 * Is this nexus a reservation holder? 8316 */ 8317 if (lun->pr_res_idx != residx 8318 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8319 /* 8320 * not a res holder return good status but 8321 * do nothing 8322 */ 8323 mtx_unlock(&lun->lun_lock); 8324 goto done; 8325 } 8326 8327 if (lun->res_type != type) { 8328 mtx_unlock(&lun->lun_lock); 8329 free(ctsio->kern_data_ptr, M_CTL); 8330 ctl_set_illegal_pr_release(ctsio); 8331 ctl_done((union ctl_io *)ctsio); 8332 return (CTL_RETVAL_COMPLETE); 8333 } 8334 8335 /* okay to release */ 8336 lun->flags &= ~CTL_LUN_PR_RESERVED; 8337 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8338 lun->res_type = 0; 8339 8340 /* 8341 * if this isn't an exclusive access 8342 * res generate UA for all other 8343 * registrants. 8344 */ 8345 if (type != SPR_TYPE_EX_AC 8346 && type != SPR_TYPE_WR_EX) { 8347 for (i = softc->init_min; i < softc->init_max; i++) { 8348 if (i == residx || ctl_get_prkey(lun, i) == 0) 8349 continue; 8350 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8351 } 8352 } 8353 mtx_unlock(&lun->lun_lock); 8354 8355 /* Send msg to other side */ 8356 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8357 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8358 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8359 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8360 sizeof(persis_io.pr), M_WAITOK); 8361 break; 8362 8363 case SPRO_CLEAR: 8364 /* send msg to other side */ 8365 8366 mtx_lock(&lun->lun_lock); 8367 lun->flags &= ~CTL_LUN_PR_RESERVED; 8368 lun->res_type = 0; 8369 lun->pr_key_count = 0; 8370 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8371 8372 ctl_clr_prkey(lun, residx); 8373 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8374 if (ctl_get_prkey(lun, i) != 0) { 8375 ctl_clr_prkey(lun, i); 8376 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8377 } 8378 lun->PRGeneration++; 8379 mtx_unlock(&lun->lun_lock); 8380 8381 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8382 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8383 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8384 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8385 sizeof(persis_io.pr), M_WAITOK); 8386 break; 8387 8388 case SPRO_PREEMPT: 8389 case SPRO_PRE_ABO: { 8390 int nretval; 8391 8392 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8393 residx, ctsio, cdb, param); 8394 if (nretval != 0) 8395 return (CTL_RETVAL_COMPLETE); 8396 break; 8397 } 8398 default: 8399 panic("Invalid PR type %x", cdb->action); 8400 } 8401 8402done: 8403 free(ctsio->kern_data_ptr, M_CTL); 8404 ctl_set_success(ctsio); 8405 ctl_done((union ctl_io *)ctsio); 8406 8407 return (retval); 8408} 8409 8410/* 8411 * This routine is for handling a message from the other SC pertaining to 8412 * persistent reserve out. All the error checking will have been done 8413 * so only perorming the action need be done here to keep the two 8414 * in sync. 8415 */ 8416static void 8417ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8418{ 8419 struct ctl_lun *lun; 8420 struct ctl_softc *softc; 8421 int i; 8422 uint32_t residx, targ_lun; 8423 8424 softc = control_softc; 8425 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8426 mtx_lock(&softc->ctl_lock); 8427 if ((targ_lun >= CTL_MAX_LUNS) || 8428 ((lun = softc->ctl_luns[targ_lun]) == NULL)) { 8429 mtx_unlock(&softc->ctl_lock); 8430 return; 8431 } 8432 mtx_lock(&lun->lun_lock); 8433 mtx_unlock(&softc->ctl_lock); 8434 if (lun->flags & CTL_LUN_DISABLED) { 8435 mtx_unlock(&lun->lun_lock); 8436 return; 8437 } 8438 residx = ctl_get_initindex(&msg->hdr.nexus); 8439 switch(msg->pr.pr_info.action) { 8440 case CTL_PR_REG_KEY: 8441 ctl_alloc_prkey(lun, msg->pr.pr_info.residx); 8442 if (ctl_get_prkey(lun, msg->pr.pr_info.residx) == 0) 8443 lun->pr_key_count++; 8444 ctl_set_prkey(lun, msg->pr.pr_info.residx, 8445 scsi_8btou64(msg->pr.pr_info.sa_res_key)); 8446 lun->PRGeneration++; 8447 break; 8448 8449 case CTL_PR_UNREG_KEY: 8450 ctl_clr_prkey(lun, msg->pr.pr_info.residx); 8451 lun->pr_key_count--; 8452 8453 /* XXX Need to see if the reservation has been released */ 8454 /* if so do we need to generate UA? */ 8455 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8456 lun->flags &= ~CTL_LUN_PR_RESERVED; 8457 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8458 8459 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8460 || lun->res_type == SPR_TYPE_EX_AC_RO) 8461 && lun->pr_key_count) { 8462 /* 8463 * If the reservation is a registrants 8464 * only type we need to generate a UA 8465 * for other registered inits. The 8466 * sense code should be RESERVATIONS 8467 * RELEASED 8468 */ 8469 8470 for (i = softc->init_min; i < softc->init_max; i++) { 8471 if (ctl_get_prkey(lun, i) == 0) 8472 continue; 8473 8474 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8475 } 8476 } 8477 lun->res_type = 0; 8478 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8479 if (lun->pr_key_count==0) { 8480 lun->flags &= ~CTL_LUN_PR_RESERVED; 8481 lun->res_type = 0; 8482 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8483 } 8484 } 8485 lun->PRGeneration++; 8486 break; 8487 8488 case CTL_PR_RESERVE: 8489 lun->flags |= CTL_LUN_PR_RESERVED; 8490 lun->res_type = msg->pr.pr_info.res_type; 8491 lun->pr_res_idx = msg->pr.pr_info.residx; 8492 8493 break; 8494 8495 case CTL_PR_RELEASE: 8496 /* 8497 * if this isn't an exclusive access res generate UA for all 8498 * other registrants. 8499 */ 8500 if (lun->res_type != SPR_TYPE_EX_AC 8501 && lun->res_type != SPR_TYPE_WR_EX) { 8502 for (i = softc->init_min; i < softc->init_max; i++) 8503 if (i == residx || ctl_get_prkey(lun, i) == 0) 8504 continue; 8505 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8506 } 8507 8508 lun->flags &= ~CTL_LUN_PR_RESERVED; 8509 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8510 lun->res_type = 0; 8511 break; 8512 8513 case CTL_PR_PREEMPT: 8514 ctl_pro_preempt_other(lun, msg); 8515 break; 8516 case CTL_PR_CLEAR: 8517 lun->flags &= ~CTL_LUN_PR_RESERVED; 8518 lun->res_type = 0; 8519 lun->pr_key_count = 0; 8520 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8521 8522 for (i=0; i < CTL_MAX_INITIATORS; i++) { 8523 if (ctl_get_prkey(lun, i) == 0) 8524 continue; 8525 ctl_clr_prkey(lun, i); 8526 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8527 } 8528 lun->PRGeneration++; 8529 break; 8530 } 8531 8532 mtx_unlock(&lun->lun_lock); 8533} 8534 8535int 8536ctl_read_write(struct ctl_scsiio *ctsio) 8537{ 8538 struct ctl_lun *lun; 8539 struct ctl_lba_len_flags *lbalen; 8540 uint64_t lba; 8541 uint32_t num_blocks; 8542 int flags, retval; 8543 int isread; 8544 8545 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8546 8547 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8548 8549 flags = 0; 8550 retval = CTL_RETVAL_COMPLETE; 8551 8552 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8553 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8554 switch (ctsio->cdb[0]) { 8555 case READ_6: 8556 case WRITE_6: { 8557 struct scsi_rw_6 *cdb; 8558 8559 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8560 8561 lba = scsi_3btoul(cdb->addr); 8562 /* only 5 bits are valid in the most significant address byte */ 8563 lba &= 0x1fffff; 8564 num_blocks = cdb->length; 8565 /* 8566 * This is correct according to SBC-2. 8567 */ 8568 if (num_blocks == 0) 8569 num_blocks = 256; 8570 break; 8571 } 8572 case READ_10: 8573 case WRITE_10: { 8574 struct scsi_rw_10 *cdb; 8575 8576 cdb = (struct scsi_rw_10 *)ctsio->cdb; 8577 if (cdb->byte2 & SRW10_FUA) 8578 flags |= CTL_LLF_FUA; 8579 if (cdb->byte2 & SRW10_DPO) 8580 flags |= CTL_LLF_DPO; 8581 lba = scsi_4btoul(cdb->addr); 8582 num_blocks = scsi_2btoul(cdb->length); 8583 break; 8584 } 8585 case WRITE_VERIFY_10: { 8586 struct scsi_write_verify_10 *cdb; 8587 8588 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 8589 flags |= CTL_LLF_FUA; 8590 if (cdb->byte2 & SWV_DPO) 8591 flags |= CTL_LLF_DPO; 8592 lba = scsi_4btoul(cdb->addr); 8593 num_blocks = scsi_2btoul(cdb->length); 8594 break; 8595 } 8596 case READ_12: 8597 case WRITE_12: { 8598 struct scsi_rw_12 *cdb; 8599 8600 cdb = (struct scsi_rw_12 *)ctsio->cdb; 8601 if (cdb->byte2 & SRW12_FUA) 8602 flags |= CTL_LLF_FUA; 8603 if (cdb->byte2 & SRW12_DPO) 8604 flags |= CTL_LLF_DPO; 8605 lba = scsi_4btoul(cdb->addr); 8606 num_blocks = scsi_4btoul(cdb->length); 8607 break; 8608 } 8609 case WRITE_VERIFY_12: { 8610 struct scsi_write_verify_12 *cdb; 8611 8612 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 8613 flags |= CTL_LLF_FUA; 8614 if (cdb->byte2 & SWV_DPO) 8615 flags |= CTL_LLF_DPO; 8616 lba = scsi_4btoul(cdb->addr); 8617 num_blocks = scsi_4btoul(cdb->length); 8618 break; 8619 } 8620 case READ_16: 8621 case WRITE_16: { 8622 struct scsi_rw_16 *cdb; 8623 8624 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8625 if (cdb->byte2 & SRW12_FUA) 8626 flags |= CTL_LLF_FUA; 8627 if (cdb->byte2 & SRW12_DPO) 8628 flags |= CTL_LLF_DPO; 8629 lba = scsi_8btou64(cdb->addr); 8630 num_blocks = scsi_4btoul(cdb->length); 8631 break; 8632 } 8633 case WRITE_ATOMIC_16: { 8634 struct scsi_rw_16 *cdb; 8635 8636 if (lun->be_lun->atomicblock == 0) { 8637 ctl_set_invalid_opcode(ctsio); 8638 ctl_done((union ctl_io *)ctsio); 8639 return (CTL_RETVAL_COMPLETE); 8640 } 8641 8642 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8643 if (cdb->byte2 & SRW12_FUA) 8644 flags |= CTL_LLF_FUA; 8645 if (cdb->byte2 & SRW12_DPO) 8646 flags |= CTL_LLF_DPO; 8647 lba = scsi_8btou64(cdb->addr); 8648 num_blocks = scsi_4btoul(cdb->length); 8649 if (num_blocks > lun->be_lun->atomicblock) { 8650 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 8651 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 8652 /*bit*/ 0); 8653 ctl_done((union ctl_io *)ctsio); 8654 return (CTL_RETVAL_COMPLETE); 8655 } 8656 break; 8657 } 8658 case WRITE_VERIFY_16: { 8659 struct scsi_write_verify_16 *cdb; 8660 8661 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 8662 flags |= CTL_LLF_FUA; 8663 if (cdb->byte2 & SWV_DPO) 8664 flags |= CTL_LLF_DPO; 8665 lba = scsi_8btou64(cdb->addr); 8666 num_blocks = scsi_4btoul(cdb->length); 8667 break; 8668 } 8669 default: 8670 /* 8671 * We got a command we don't support. This shouldn't 8672 * happen, commands should be filtered out above us. 8673 */ 8674 ctl_set_invalid_opcode(ctsio); 8675 ctl_done((union ctl_io *)ctsio); 8676 8677 return (CTL_RETVAL_COMPLETE); 8678 break; /* NOTREACHED */ 8679 } 8680 8681 /* 8682 * The first check is to make sure we're in bounds, the second 8683 * check is to catch wrap-around problems. If the lba + num blocks 8684 * is less than the lba, then we've wrapped around and the block 8685 * range is invalid anyway. 8686 */ 8687 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8688 || ((lba + num_blocks) < lba)) { 8689 ctl_set_lba_out_of_range(ctsio); 8690 ctl_done((union ctl_io *)ctsio); 8691 return (CTL_RETVAL_COMPLETE); 8692 } 8693 8694 /* 8695 * According to SBC-3, a transfer length of 0 is not an error. 8696 * Note that this cannot happen with WRITE(6) or READ(6), since 0 8697 * translates to 256 blocks for those commands. 8698 */ 8699 if (num_blocks == 0) { 8700 ctl_set_success(ctsio); 8701 ctl_done((union ctl_io *)ctsio); 8702 return (CTL_RETVAL_COMPLETE); 8703 } 8704 8705 /* Set FUA and/or DPO if caches are disabled. */ 8706 if (isread) { 8707 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 8708 SCP_RCD) != 0) 8709 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 8710 } else { 8711 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 8712 SCP_WCE) == 0) 8713 flags |= CTL_LLF_FUA; 8714 } 8715 8716 lbalen = (struct ctl_lba_len_flags *) 8717 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8718 lbalen->lba = lba; 8719 lbalen->len = num_blocks; 8720 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 8721 8722 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 8723 ctsio->kern_rel_offset = 0; 8724 8725 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 8726 8727 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8728 8729 return (retval); 8730} 8731 8732static int 8733ctl_cnw_cont(union ctl_io *io) 8734{ 8735 struct ctl_scsiio *ctsio; 8736 struct ctl_lun *lun; 8737 struct ctl_lba_len_flags *lbalen; 8738 int retval; 8739 8740 ctsio = &io->scsiio; 8741 ctsio->io_hdr.status = CTL_STATUS_NONE; 8742 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 8743 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8744 lbalen = (struct ctl_lba_len_flags *) 8745 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8746 lbalen->flags &= ~CTL_LLF_COMPARE; 8747 lbalen->flags |= CTL_LLF_WRITE; 8748 8749 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 8750 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8751 return (retval); 8752} 8753 8754int 8755ctl_cnw(struct ctl_scsiio *ctsio) 8756{ 8757 struct ctl_lun *lun; 8758 struct ctl_lba_len_flags *lbalen; 8759 uint64_t lba; 8760 uint32_t num_blocks; 8761 int flags, retval; 8762 8763 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8764 8765 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 8766 8767 flags = 0; 8768 retval = CTL_RETVAL_COMPLETE; 8769 8770 switch (ctsio->cdb[0]) { 8771 case COMPARE_AND_WRITE: { 8772 struct scsi_compare_and_write *cdb; 8773 8774 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 8775 if (cdb->byte2 & SRW10_FUA) 8776 flags |= CTL_LLF_FUA; 8777 if (cdb->byte2 & SRW10_DPO) 8778 flags |= CTL_LLF_DPO; 8779 lba = scsi_8btou64(cdb->addr); 8780 num_blocks = cdb->length; 8781 break; 8782 } 8783 default: 8784 /* 8785 * We got a command we don't support. This shouldn't 8786 * happen, commands should be filtered out above us. 8787 */ 8788 ctl_set_invalid_opcode(ctsio); 8789 ctl_done((union ctl_io *)ctsio); 8790 8791 return (CTL_RETVAL_COMPLETE); 8792 break; /* NOTREACHED */ 8793 } 8794 8795 /* 8796 * The first check is to make sure we're in bounds, the second 8797 * check is to catch wrap-around problems. If the lba + num blocks 8798 * is less than the lba, then we've wrapped around and the block 8799 * range is invalid anyway. 8800 */ 8801 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8802 || ((lba + num_blocks) < lba)) { 8803 ctl_set_lba_out_of_range(ctsio); 8804 ctl_done((union ctl_io *)ctsio); 8805 return (CTL_RETVAL_COMPLETE); 8806 } 8807 8808 /* 8809 * According to SBC-3, a transfer length of 0 is not an error. 8810 */ 8811 if (num_blocks == 0) { 8812 ctl_set_success(ctsio); 8813 ctl_done((union ctl_io *)ctsio); 8814 return (CTL_RETVAL_COMPLETE); 8815 } 8816 8817 /* Set FUA if write cache is disabled. */ 8818 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 8819 SCP_WCE) == 0) 8820 flags |= CTL_LLF_FUA; 8821 8822 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 8823 ctsio->kern_rel_offset = 0; 8824 8825 /* 8826 * Set the IO_CONT flag, so that if this I/O gets passed to 8827 * ctl_data_submit_done(), it'll get passed back to 8828 * ctl_ctl_cnw_cont() for further processing. 8829 */ 8830 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 8831 ctsio->io_cont = ctl_cnw_cont; 8832 8833 lbalen = (struct ctl_lba_len_flags *) 8834 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8835 lbalen->lba = lba; 8836 lbalen->len = num_blocks; 8837 lbalen->flags = CTL_LLF_COMPARE | flags; 8838 8839 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 8840 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8841 return (retval); 8842} 8843 8844int 8845ctl_verify(struct ctl_scsiio *ctsio) 8846{ 8847 struct ctl_lun *lun; 8848 struct ctl_lba_len_flags *lbalen; 8849 uint64_t lba; 8850 uint32_t num_blocks; 8851 int bytchk, flags; 8852 int retval; 8853 8854 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8855 8856 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 8857 8858 bytchk = 0; 8859 flags = CTL_LLF_FUA; 8860 retval = CTL_RETVAL_COMPLETE; 8861 8862 switch (ctsio->cdb[0]) { 8863 case VERIFY_10: { 8864 struct scsi_verify_10 *cdb; 8865 8866 cdb = (struct scsi_verify_10 *)ctsio->cdb; 8867 if (cdb->byte2 & SVFY_BYTCHK) 8868 bytchk = 1; 8869 if (cdb->byte2 & SVFY_DPO) 8870 flags |= CTL_LLF_DPO; 8871 lba = scsi_4btoul(cdb->addr); 8872 num_blocks = scsi_2btoul(cdb->length); 8873 break; 8874 } 8875 case VERIFY_12: { 8876 struct scsi_verify_12 *cdb; 8877 8878 cdb = (struct scsi_verify_12 *)ctsio->cdb; 8879 if (cdb->byte2 & SVFY_BYTCHK) 8880 bytchk = 1; 8881 if (cdb->byte2 & SVFY_DPO) 8882 flags |= CTL_LLF_DPO; 8883 lba = scsi_4btoul(cdb->addr); 8884 num_blocks = scsi_4btoul(cdb->length); 8885 break; 8886 } 8887 case VERIFY_16: { 8888 struct scsi_rw_16 *cdb; 8889 8890 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8891 if (cdb->byte2 & SVFY_BYTCHK) 8892 bytchk = 1; 8893 if (cdb->byte2 & SVFY_DPO) 8894 flags |= CTL_LLF_DPO; 8895 lba = scsi_8btou64(cdb->addr); 8896 num_blocks = scsi_4btoul(cdb->length); 8897 break; 8898 } 8899 default: 8900 /* 8901 * We got a command we don't support. This shouldn't 8902 * happen, commands should be filtered out above us. 8903 */ 8904 ctl_set_invalid_opcode(ctsio); 8905 ctl_done((union ctl_io *)ctsio); 8906 return (CTL_RETVAL_COMPLETE); 8907 } 8908 8909 /* 8910 * The first check is to make sure we're in bounds, the second 8911 * check is to catch wrap-around problems. If the lba + num blocks 8912 * is less than the lba, then we've wrapped around and the block 8913 * range is invalid anyway. 8914 */ 8915 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8916 || ((lba + num_blocks) < lba)) { 8917 ctl_set_lba_out_of_range(ctsio); 8918 ctl_done((union ctl_io *)ctsio); 8919 return (CTL_RETVAL_COMPLETE); 8920 } 8921 8922 /* 8923 * According to SBC-3, a transfer length of 0 is not an error. 8924 */ 8925 if (num_blocks == 0) { 8926 ctl_set_success(ctsio); 8927 ctl_done((union ctl_io *)ctsio); 8928 return (CTL_RETVAL_COMPLETE); 8929 } 8930 8931 lbalen = (struct ctl_lba_len_flags *) 8932 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8933 lbalen->lba = lba; 8934 lbalen->len = num_blocks; 8935 if (bytchk) { 8936 lbalen->flags = CTL_LLF_COMPARE | flags; 8937 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 8938 } else { 8939 lbalen->flags = CTL_LLF_VERIFY | flags; 8940 ctsio->kern_total_len = 0; 8941 } 8942 ctsio->kern_rel_offset = 0; 8943 8944 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 8945 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8946 return (retval); 8947} 8948 8949int 8950ctl_report_luns(struct ctl_scsiio *ctsio) 8951{ 8952 struct ctl_softc *softc = control_softc; 8953 struct scsi_report_luns *cdb; 8954 struct scsi_report_luns_data *lun_data; 8955 struct ctl_lun *lun, *request_lun; 8956 struct ctl_port *port; 8957 int num_luns, retval; 8958 uint32_t alloc_len, lun_datalen; 8959 int num_filled, well_known; 8960 uint32_t initidx, targ_lun_id, lun_id; 8961 8962 retval = CTL_RETVAL_COMPLETE; 8963 well_known = 0; 8964 8965 cdb = (struct scsi_report_luns *)ctsio->cdb; 8966 port = ctl_io_port(&ctsio->io_hdr); 8967 8968 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 8969 8970 mtx_lock(&softc->ctl_lock); 8971 num_luns = 0; 8972 for (targ_lun_id = 0; targ_lun_id < CTL_MAX_LUNS; targ_lun_id++) { 8973 if (ctl_lun_map_from_port(port, targ_lun_id) < CTL_MAX_LUNS) 8974 num_luns++; 8975 } 8976 mtx_unlock(&softc->ctl_lock); 8977 8978 switch (cdb->select_report) { 8979 case RPL_REPORT_DEFAULT: 8980 case RPL_REPORT_ALL: 8981 break; 8982 case RPL_REPORT_WELLKNOWN: 8983 well_known = 1; 8984 num_luns = 0; 8985 break; 8986 default: 8987 ctl_set_invalid_field(ctsio, 8988 /*sks_valid*/ 1, 8989 /*command*/ 1, 8990 /*field*/ 2, 8991 /*bit_valid*/ 0, 8992 /*bit*/ 0); 8993 ctl_done((union ctl_io *)ctsio); 8994 return (retval); 8995 break; /* NOTREACHED */ 8996 } 8997 8998 alloc_len = scsi_4btoul(cdb->length); 8999 /* 9000 * The initiator has to allocate at least 16 bytes for this request, 9001 * so he can at least get the header and the first LUN. Otherwise 9002 * we reject the request (per SPC-3 rev 14, section 6.21). 9003 */ 9004 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9005 sizeof(struct scsi_report_luns_lundata))) { 9006 ctl_set_invalid_field(ctsio, 9007 /*sks_valid*/ 1, 9008 /*command*/ 1, 9009 /*field*/ 6, 9010 /*bit_valid*/ 0, 9011 /*bit*/ 0); 9012 ctl_done((union ctl_io *)ctsio); 9013 return (retval); 9014 } 9015 9016 request_lun = (struct ctl_lun *) 9017 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9018 9019 lun_datalen = sizeof(*lun_data) + 9020 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9021 9022 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9023 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9024 ctsio->kern_sg_entries = 0; 9025 9026 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9027 9028 mtx_lock(&softc->ctl_lock); 9029 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9030 lun_id = ctl_lun_map_from_port(port, targ_lun_id); 9031 if (lun_id >= CTL_MAX_LUNS) 9032 continue; 9033 lun = softc->ctl_luns[lun_id]; 9034 if (lun == NULL) 9035 continue; 9036 9037 if (targ_lun_id <= 0xff) { 9038 /* 9039 * Peripheral addressing method, bus number 0. 9040 */ 9041 lun_data->luns[num_filled].lundata[0] = 9042 RPL_LUNDATA_ATYP_PERIPH; 9043 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9044 num_filled++; 9045 } else if (targ_lun_id <= 0x3fff) { 9046 /* 9047 * Flat addressing method. 9048 */ 9049 lun_data->luns[num_filled].lundata[0] = 9050 RPL_LUNDATA_ATYP_FLAT | (targ_lun_id >> 8); 9051 lun_data->luns[num_filled].lundata[1] = 9052 (targ_lun_id & 0xff); 9053 num_filled++; 9054 } else if (targ_lun_id <= 0xffffff) { 9055 /* 9056 * Extended flat addressing method. 9057 */ 9058 lun_data->luns[num_filled].lundata[0] = 9059 RPL_LUNDATA_ATYP_EXTLUN | 0x12; 9060 scsi_ulto3b(targ_lun_id, 9061 &lun_data->luns[num_filled].lundata[1]); 9062 num_filled++; 9063 } else { 9064 printf("ctl_report_luns: bogus LUN number %jd, " 9065 "skipping\n", (intmax_t)targ_lun_id); 9066 } 9067 /* 9068 * According to SPC-3, rev 14 section 6.21: 9069 * 9070 * "The execution of a REPORT LUNS command to any valid and 9071 * installed logical unit shall clear the REPORTED LUNS DATA 9072 * HAS CHANGED unit attention condition for all logical 9073 * units of that target with respect to the requesting 9074 * initiator. A valid and installed logical unit is one 9075 * having a PERIPHERAL QUALIFIER of 000b in the standard 9076 * INQUIRY data (see 6.4.2)." 9077 * 9078 * If request_lun is NULL, the LUN this report luns command 9079 * was issued to is either disabled or doesn't exist. In that 9080 * case, we shouldn't clear any pending lun change unit 9081 * attention. 9082 */ 9083 if (request_lun != NULL) { 9084 mtx_lock(&lun->lun_lock); 9085 ctl_clr_ua(lun, initidx, CTL_UA_LUN_CHANGE); 9086 mtx_unlock(&lun->lun_lock); 9087 } 9088 } 9089 mtx_unlock(&softc->ctl_lock); 9090 9091 /* 9092 * It's quite possible that we've returned fewer LUNs than we allocated 9093 * space for. Trim it. 9094 */ 9095 lun_datalen = sizeof(*lun_data) + 9096 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9097 9098 if (lun_datalen < alloc_len) { 9099 ctsio->residual = alloc_len - lun_datalen; 9100 ctsio->kern_data_len = lun_datalen; 9101 ctsio->kern_total_len = lun_datalen; 9102 } else { 9103 ctsio->residual = 0; 9104 ctsio->kern_data_len = alloc_len; 9105 ctsio->kern_total_len = alloc_len; 9106 } 9107 ctsio->kern_data_resid = 0; 9108 ctsio->kern_rel_offset = 0; 9109 ctsio->kern_sg_entries = 0; 9110 9111 /* 9112 * We set this to the actual data length, regardless of how much 9113 * space we actually have to return results. If the user looks at 9114 * this value, he'll know whether or not he allocated enough space 9115 * and reissue the command if necessary. We don't support well 9116 * known logical units, so if the user asks for that, return none. 9117 */ 9118 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9119 9120 /* 9121 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9122 * this request. 9123 */ 9124 ctl_set_success(ctsio); 9125 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9126 ctsio->be_move_done = ctl_config_move_done; 9127 ctl_datamove((union ctl_io *)ctsio); 9128 return (retval); 9129} 9130 9131int 9132ctl_request_sense(struct ctl_scsiio *ctsio) 9133{ 9134 struct scsi_request_sense *cdb; 9135 struct scsi_sense_data *sense_ptr; 9136 struct ctl_softc *ctl_softc; 9137 struct ctl_lun *lun; 9138 uint32_t initidx; 9139 int have_error; 9140 scsi_sense_data_type sense_format; 9141 ctl_ua_type ua_type; 9142 9143 cdb = (struct scsi_request_sense *)ctsio->cdb; 9144 9145 ctl_softc = control_softc; 9146 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9147 9148 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9149 9150 /* 9151 * Determine which sense format the user wants. 9152 */ 9153 if (cdb->byte2 & SRS_DESC) 9154 sense_format = SSD_TYPE_DESC; 9155 else 9156 sense_format = SSD_TYPE_FIXED; 9157 9158 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9159 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9160 ctsio->kern_sg_entries = 0; 9161 9162 /* 9163 * struct scsi_sense_data, which is currently set to 256 bytes, is 9164 * larger than the largest allowed value for the length field in the 9165 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9166 */ 9167 ctsio->residual = 0; 9168 ctsio->kern_data_len = cdb->length; 9169 ctsio->kern_total_len = cdb->length; 9170 9171 ctsio->kern_data_resid = 0; 9172 ctsio->kern_rel_offset = 0; 9173 ctsio->kern_sg_entries = 0; 9174 9175 /* 9176 * If we don't have a LUN, we don't have any pending sense. 9177 */ 9178 if (lun == NULL) 9179 goto no_sense; 9180 9181 have_error = 0; 9182 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9183 /* 9184 * Check for pending sense, and then for pending unit attentions. 9185 * Pending sense gets returned first, then pending unit attentions. 9186 */ 9187 mtx_lock(&lun->lun_lock); 9188#ifdef CTL_WITH_CA 9189 if (ctl_is_set(lun->have_ca, initidx)) { 9190 scsi_sense_data_type stored_format; 9191 9192 /* 9193 * Check to see which sense format was used for the stored 9194 * sense data. 9195 */ 9196 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9197 9198 /* 9199 * If the user requested a different sense format than the 9200 * one we stored, then we need to convert it to the other 9201 * format. If we're going from descriptor to fixed format 9202 * sense data, we may lose things in translation, depending 9203 * on what options were used. 9204 * 9205 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9206 * for some reason we'll just copy it out as-is. 9207 */ 9208 if ((stored_format == SSD_TYPE_FIXED) 9209 && (sense_format == SSD_TYPE_DESC)) 9210 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9211 &lun->pending_sense[initidx], 9212 (struct scsi_sense_data_desc *)sense_ptr); 9213 else if ((stored_format == SSD_TYPE_DESC) 9214 && (sense_format == SSD_TYPE_FIXED)) 9215 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9216 &lun->pending_sense[initidx], 9217 (struct scsi_sense_data_fixed *)sense_ptr); 9218 else 9219 memcpy(sense_ptr, &lun->pending_sense[initidx], 9220 MIN(sizeof(*sense_ptr), 9221 sizeof(lun->pending_sense[initidx]))); 9222 9223 ctl_clear_mask(lun->have_ca, initidx); 9224 have_error = 1; 9225 } else 9226#endif 9227 { 9228 ua_type = ctl_build_ua(lun, initidx, sense_ptr, sense_format); 9229 if (ua_type != CTL_UA_NONE) 9230 have_error = 1; 9231 if (ua_type == CTL_UA_LUN_CHANGE) { 9232 mtx_unlock(&lun->lun_lock); 9233 mtx_lock(&ctl_softc->ctl_lock); 9234 ctl_clr_ua_allluns(ctl_softc, initidx, ua_type); 9235 mtx_unlock(&ctl_softc->ctl_lock); 9236 mtx_lock(&lun->lun_lock); 9237 } 9238 9239 } 9240 mtx_unlock(&lun->lun_lock); 9241 9242 /* 9243 * We already have a pending error, return it. 9244 */ 9245 if (have_error != 0) { 9246 /* 9247 * We report the SCSI status as OK, since the status of the 9248 * request sense command itself is OK. 9249 * We report 0 for the sense length, because we aren't doing 9250 * autosense in this case. We're reporting sense as 9251 * parameter data. 9252 */ 9253 ctl_set_success(ctsio); 9254 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9255 ctsio->be_move_done = ctl_config_move_done; 9256 ctl_datamove((union ctl_io *)ctsio); 9257 return (CTL_RETVAL_COMPLETE); 9258 } 9259 9260no_sense: 9261 9262 /* 9263 * No sense information to report, so we report that everything is 9264 * okay. 9265 */ 9266 ctl_set_sense_data(sense_ptr, 9267 lun, 9268 sense_format, 9269 /*current_error*/ 1, 9270 /*sense_key*/ SSD_KEY_NO_SENSE, 9271 /*asc*/ 0x00, 9272 /*ascq*/ 0x00, 9273 SSD_ELEM_NONE); 9274 9275 /* 9276 * We report 0 for the sense length, because we aren't doing 9277 * autosense in this case. We're reporting sense as parameter data. 9278 */ 9279 ctl_set_success(ctsio); 9280 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9281 ctsio->be_move_done = ctl_config_move_done; 9282 ctl_datamove((union ctl_io *)ctsio); 9283 return (CTL_RETVAL_COMPLETE); 9284} 9285 9286int 9287ctl_tur(struct ctl_scsiio *ctsio) 9288{ 9289 9290 CTL_DEBUG_PRINT(("ctl_tur\n")); 9291 9292 ctl_set_success(ctsio); 9293 ctl_done((union ctl_io *)ctsio); 9294 9295 return (CTL_RETVAL_COMPLETE); 9296} 9297 9298/* 9299 * SCSI VPD page 0x00, the Supported VPD Pages page. 9300 */ 9301static int 9302ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9303{ 9304 struct scsi_vpd_supported_pages *pages; 9305 int sup_page_size; 9306 struct ctl_lun *lun; 9307 int p; 9308 9309 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9310 9311 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9312 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9313 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9314 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9315 ctsio->kern_sg_entries = 0; 9316 9317 if (sup_page_size < alloc_len) { 9318 ctsio->residual = alloc_len - sup_page_size; 9319 ctsio->kern_data_len = sup_page_size; 9320 ctsio->kern_total_len = sup_page_size; 9321 } else { 9322 ctsio->residual = 0; 9323 ctsio->kern_data_len = alloc_len; 9324 ctsio->kern_total_len = alloc_len; 9325 } 9326 ctsio->kern_data_resid = 0; 9327 ctsio->kern_rel_offset = 0; 9328 ctsio->kern_sg_entries = 0; 9329 9330 /* 9331 * The control device is always connected. The disk device, on the 9332 * other hand, may not be online all the time. Need to change this 9333 * to figure out whether the disk device is actually online or not. 9334 */ 9335 if (lun != NULL) 9336 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9337 lun->be_lun->lun_type; 9338 else 9339 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9340 9341 p = 0; 9342 /* Supported VPD pages */ 9343 pages->page_list[p++] = SVPD_SUPPORTED_PAGES; 9344 /* Serial Number */ 9345 pages->page_list[p++] = SVPD_UNIT_SERIAL_NUMBER; 9346 /* Device Identification */ 9347 pages->page_list[p++] = SVPD_DEVICE_ID; 9348 /* Extended INQUIRY Data */ 9349 pages->page_list[p++] = SVPD_EXTENDED_INQUIRY_DATA; 9350 /* Mode Page Policy */ 9351 pages->page_list[p++] = SVPD_MODE_PAGE_POLICY; 9352 /* SCSI Ports */ 9353 pages->page_list[p++] = SVPD_SCSI_PORTS; 9354 /* Third-party Copy */ 9355 pages->page_list[p++] = SVPD_SCSI_TPC; 9356 if (lun != NULL && lun->be_lun->lun_type == T_DIRECT) { 9357 /* Block limits */ 9358 pages->page_list[p++] = SVPD_BLOCK_LIMITS; 9359 /* Block Device Characteristics */ 9360 pages->page_list[p++] = SVPD_BDC; 9361 /* Logical Block Provisioning */ 9362 pages->page_list[p++] = SVPD_LBP; 9363 } 9364 pages->length = p; 9365 9366 ctl_set_success(ctsio); 9367 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9368 ctsio->be_move_done = ctl_config_move_done; 9369 ctl_datamove((union ctl_io *)ctsio); 9370 return (CTL_RETVAL_COMPLETE); 9371} 9372 9373/* 9374 * SCSI VPD page 0x80, the Unit Serial Number page. 9375 */ 9376static int 9377ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9378{ 9379 struct scsi_vpd_unit_serial_number *sn_ptr; 9380 struct ctl_lun *lun; 9381 int data_len; 9382 9383 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9384 9385 data_len = 4 + CTL_SN_LEN; 9386 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9387 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9388 if (data_len < alloc_len) { 9389 ctsio->residual = alloc_len - data_len; 9390 ctsio->kern_data_len = data_len; 9391 ctsio->kern_total_len = data_len; 9392 } else { 9393 ctsio->residual = 0; 9394 ctsio->kern_data_len = alloc_len; 9395 ctsio->kern_total_len = alloc_len; 9396 } 9397 ctsio->kern_data_resid = 0; 9398 ctsio->kern_rel_offset = 0; 9399 ctsio->kern_sg_entries = 0; 9400 9401 /* 9402 * The control device is always connected. The disk device, on the 9403 * other hand, may not be online all the time. Need to change this 9404 * to figure out whether the disk device is actually online or not. 9405 */ 9406 if (lun != NULL) 9407 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9408 lun->be_lun->lun_type; 9409 else 9410 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9411 9412 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9413 sn_ptr->length = CTL_SN_LEN; 9414 /* 9415 * If we don't have a LUN, we just leave the serial number as 9416 * all spaces. 9417 */ 9418 if (lun != NULL) { 9419 strncpy((char *)sn_ptr->serial_num, 9420 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9421 } else 9422 memset(sn_ptr->serial_num, 0x20, CTL_SN_LEN); 9423 9424 ctl_set_success(ctsio); 9425 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9426 ctsio->be_move_done = ctl_config_move_done; 9427 ctl_datamove((union ctl_io *)ctsio); 9428 return (CTL_RETVAL_COMPLETE); 9429} 9430 9431 9432/* 9433 * SCSI VPD page 0x86, the Extended INQUIRY Data page. 9434 */ 9435static int 9436ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9437{ 9438 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9439 struct ctl_lun *lun; 9440 int data_len; 9441 9442 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9443 9444 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9445 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9446 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9447 ctsio->kern_sg_entries = 0; 9448 9449 if (data_len < alloc_len) { 9450 ctsio->residual = alloc_len - data_len; 9451 ctsio->kern_data_len = data_len; 9452 ctsio->kern_total_len = data_len; 9453 } else { 9454 ctsio->residual = 0; 9455 ctsio->kern_data_len = alloc_len; 9456 ctsio->kern_total_len = alloc_len; 9457 } 9458 ctsio->kern_data_resid = 0; 9459 ctsio->kern_rel_offset = 0; 9460 ctsio->kern_sg_entries = 0; 9461 9462 /* 9463 * The control device is always connected. The disk device, on the 9464 * other hand, may not be online all the time. 9465 */ 9466 if (lun != NULL) 9467 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9468 lun->be_lun->lun_type; 9469 else 9470 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9471 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9472 scsi_ulto2b(data_len - 4, eid_ptr->page_length); 9473 /* 9474 * We support head of queue, ordered and simple tags. 9475 */ 9476 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9477 /* 9478 * Volatile cache supported. 9479 */ 9480 eid_ptr->flags3 = SVPD_EID_V_SUP; 9481 9482 /* 9483 * This means that we clear the REPORTED LUNS DATA HAS CHANGED unit 9484 * attention for a particular IT nexus on all LUNs once we report 9485 * it to that nexus once. This bit is required as of SPC-4. 9486 */ 9487 eid_ptr->flags4 = SVPD_EID_LUICLT; 9488 9489 /* 9490 * XXX KDM in order to correctly answer this, we would need 9491 * information from the SIM to determine how much sense data it 9492 * can send. So this would really be a path inquiry field, most 9493 * likely. This can be set to a maximum of 252 according to SPC-4, 9494 * but the hardware may or may not be able to support that much. 9495 * 0 just means that the maximum sense data length is not reported. 9496 */ 9497 eid_ptr->max_sense_length = 0; 9498 9499 ctl_set_success(ctsio); 9500 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9501 ctsio->be_move_done = ctl_config_move_done; 9502 ctl_datamove((union ctl_io *)ctsio); 9503 return (CTL_RETVAL_COMPLETE); 9504} 9505 9506static int 9507ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9508{ 9509 struct scsi_vpd_mode_page_policy *mpp_ptr; 9510 struct ctl_lun *lun; 9511 int data_len; 9512 9513 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9514 9515 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9516 sizeof(struct scsi_vpd_mode_page_policy_descr); 9517 9518 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9519 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9520 ctsio->kern_sg_entries = 0; 9521 9522 if (data_len < alloc_len) { 9523 ctsio->residual = alloc_len - data_len; 9524 ctsio->kern_data_len = data_len; 9525 ctsio->kern_total_len = data_len; 9526 } else { 9527 ctsio->residual = 0; 9528 ctsio->kern_data_len = alloc_len; 9529 ctsio->kern_total_len = alloc_len; 9530 } 9531 ctsio->kern_data_resid = 0; 9532 ctsio->kern_rel_offset = 0; 9533 ctsio->kern_sg_entries = 0; 9534 9535 /* 9536 * The control device is always connected. The disk device, on the 9537 * other hand, may not be online all the time. 9538 */ 9539 if (lun != NULL) 9540 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9541 lun->be_lun->lun_type; 9542 else 9543 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9544 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9545 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9546 mpp_ptr->descr[0].page_code = 0x3f; 9547 mpp_ptr->descr[0].subpage_code = 0xff; 9548 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9549 9550 ctl_set_success(ctsio); 9551 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9552 ctsio->be_move_done = ctl_config_move_done; 9553 ctl_datamove((union ctl_io *)ctsio); 9554 return (CTL_RETVAL_COMPLETE); 9555} 9556 9557/* 9558 * SCSI VPD page 0x83, the Device Identification page. 9559 */ 9560static int 9561ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9562{ 9563 struct scsi_vpd_device_id *devid_ptr; 9564 struct scsi_vpd_id_descriptor *desc; 9565 struct ctl_softc *softc; 9566 struct ctl_lun *lun; 9567 struct ctl_port *port; 9568 int data_len; 9569 uint8_t proto; 9570 9571 softc = control_softc; 9572 9573 port = ctl_io_port(&ctsio->io_hdr); 9574 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9575 9576 data_len = sizeof(struct scsi_vpd_device_id) + 9577 sizeof(struct scsi_vpd_id_descriptor) + 9578 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9579 sizeof(struct scsi_vpd_id_descriptor) + 9580 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9581 if (lun && lun->lun_devid) 9582 data_len += lun->lun_devid->len; 9583 if (port && port->port_devid) 9584 data_len += port->port_devid->len; 9585 if (port && port->target_devid) 9586 data_len += port->target_devid->len; 9587 9588 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9589 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9590 ctsio->kern_sg_entries = 0; 9591 9592 if (data_len < alloc_len) { 9593 ctsio->residual = alloc_len - data_len; 9594 ctsio->kern_data_len = data_len; 9595 ctsio->kern_total_len = data_len; 9596 } else { 9597 ctsio->residual = 0; 9598 ctsio->kern_data_len = alloc_len; 9599 ctsio->kern_total_len = alloc_len; 9600 } 9601 ctsio->kern_data_resid = 0; 9602 ctsio->kern_rel_offset = 0; 9603 ctsio->kern_sg_entries = 0; 9604 9605 /* 9606 * The control device is always connected. The disk device, on the 9607 * other hand, may not be online all the time. 9608 */ 9609 if (lun != NULL) 9610 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9611 lun->be_lun->lun_type; 9612 else 9613 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9614 devid_ptr->page_code = SVPD_DEVICE_ID; 9615 scsi_ulto2b(data_len - 4, devid_ptr->length); 9616 9617 if (port && port->port_type == CTL_PORT_FC) 9618 proto = SCSI_PROTO_FC << 4; 9619 else if (port && port->port_type == CTL_PORT_ISCSI) 9620 proto = SCSI_PROTO_ISCSI << 4; 9621 else 9622 proto = SCSI_PROTO_SPI << 4; 9623 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9624 9625 /* 9626 * We're using a LUN association here. i.e., this device ID is a 9627 * per-LUN identifier. 9628 */ 9629 if (lun && lun->lun_devid) { 9630 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9631 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9632 lun->lun_devid->len); 9633 } 9634 9635 /* 9636 * This is for the WWPN which is a port association. 9637 */ 9638 if (port && port->port_devid) { 9639 memcpy(desc, port->port_devid->data, port->port_devid->len); 9640 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9641 port->port_devid->len); 9642 } 9643 9644 /* 9645 * This is for the Relative Target Port(type 4h) identifier 9646 */ 9647 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9648 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9649 SVPD_ID_TYPE_RELTARG; 9650 desc->length = 4; 9651 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9652 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9653 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9654 9655 /* 9656 * This is for the Target Port Group(type 5h) identifier 9657 */ 9658 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9659 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9660 SVPD_ID_TYPE_TPORTGRP; 9661 desc->length = 4; 9662 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / softc->port_cnt + 1, 9663 &desc->identifier[2]); 9664 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9665 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9666 9667 /* 9668 * This is for the Target identifier 9669 */ 9670 if (port && port->target_devid) { 9671 memcpy(desc, port->target_devid->data, port->target_devid->len); 9672 } 9673 9674 ctl_set_success(ctsio); 9675 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9676 ctsio->be_move_done = ctl_config_move_done; 9677 ctl_datamove((union ctl_io *)ctsio); 9678 return (CTL_RETVAL_COMPLETE); 9679} 9680 9681static int 9682ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 9683{ 9684 struct ctl_softc *softc = control_softc; 9685 struct scsi_vpd_scsi_ports *sp; 9686 struct scsi_vpd_port_designation *pd; 9687 struct scsi_vpd_port_designation_cont *pdc; 9688 struct ctl_lun *lun; 9689 struct ctl_port *port; 9690 int data_len, num_target_ports, iid_len, id_len; 9691 9692 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9693 9694 num_target_ports = 0; 9695 iid_len = 0; 9696 id_len = 0; 9697 mtx_lock(&softc->ctl_lock); 9698 STAILQ_FOREACH(port, &softc->port_list, links) { 9699 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9700 continue; 9701 if (lun != NULL && 9702 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 9703 continue; 9704 num_target_ports++; 9705 if (port->init_devid) 9706 iid_len += port->init_devid->len; 9707 if (port->port_devid) 9708 id_len += port->port_devid->len; 9709 } 9710 mtx_unlock(&softc->ctl_lock); 9711 9712 data_len = sizeof(struct scsi_vpd_scsi_ports) + 9713 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 9714 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 9715 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9716 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 9717 ctsio->kern_sg_entries = 0; 9718 9719 if (data_len < alloc_len) { 9720 ctsio->residual = alloc_len - data_len; 9721 ctsio->kern_data_len = data_len; 9722 ctsio->kern_total_len = data_len; 9723 } else { 9724 ctsio->residual = 0; 9725 ctsio->kern_data_len = alloc_len; 9726 ctsio->kern_total_len = alloc_len; 9727 } 9728 ctsio->kern_data_resid = 0; 9729 ctsio->kern_rel_offset = 0; 9730 ctsio->kern_sg_entries = 0; 9731 9732 /* 9733 * The control device is always connected. The disk device, on the 9734 * other hand, may not be online all the time. Need to change this 9735 * to figure out whether the disk device is actually online or not. 9736 */ 9737 if (lun != NULL) 9738 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 9739 lun->be_lun->lun_type; 9740 else 9741 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9742 9743 sp->page_code = SVPD_SCSI_PORTS; 9744 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 9745 sp->page_length); 9746 pd = &sp->design[0]; 9747 9748 mtx_lock(&softc->ctl_lock); 9749 STAILQ_FOREACH(port, &softc->port_list, links) { 9750 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9751 continue; 9752 if (lun != NULL && 9753 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 9754 continue; 9755 scsi_ulto2b(port->targ_port, pd->relative_port_id); 9756 if (port->init_devid) { 9757 iid_len = port->init_devid->len; 9758 memcpy(pd->initiator_transportid, 9759 port->init_devid->data, port->init_devid->len); 9760 } else 9761 iid_len = 0; 9762 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 9763 pdc = (struct scsi_vpd_port_designation_cont *) 9764 (&pd->initiator_transportid[iid_len]); 9765 if (port->port_devid) { 9766 id_len = port->port_devid->len; 9767 memcpy(pdc->target_port_descriptors, 9768 port->port_devid->data, port->port_devid->len); 9769 } else 9770 id_len = 0; 9771 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 9772 pd = (struct scsi_vpd_port_designation *) 9773 ((uint8_t *)pdc->target_port_descriptors + id_len); 9774 } 9775 mtx_unlock(&softc->ctl_lock); 9776 9777 ctl_set_success(ctsio); 9778 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9779 ctsio->be_move_done = ctl_config_move_done; 9780 ctl_datamove((union ctl_io *)ctsio); 9781 return (CTL_RETVAL_COMPLETE); 9782} 9783 9784static int 9785ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 9786{ 9787 struct scsi_vpd_block_limits *bl_ptr; 9788 struct ctl_lun *lun; 9789 int bs; 9790 9791 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9792 9793 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 9794 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 9795 ctsio->kern_sg_entries = 0; 9796 9797 if (sizeof(*bl_ptr) < alloc_len) { 9798 ctsio->residual = alloc_len - sizeof(*bl_ptr); 9799 ctsio->kern_data_len = sizeof(*bl_ptr); 9800 ctsio->kern_total_len = sizeof(*bl_ptr); 9801 } else { 9802 ctsio->residual = 0; 9803 ctsio->kern_data_len = alloc_len; 9804 ctsio->kern_total_len = alloc_len; 9805 } 9806 ctsio->kern_data_resid = 0; 9807 ctsio->kern_rel_offset = 0; 9808 ctsio->kern_sg_entries = 0; 9809 9810 /* 9811 * The control device is always connected. The disk device, on the 9812 * other hand, may not be online all the time. Need to change this 9813 * to figure out whether the disk device is actually online or not. 9814 */ 9815 if (lun != NULL) 9816 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9817 lun->be_lun->lun_type; 9818 else 9819 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9820 9821 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 9822 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 9823 bl_ptr->max_cmp_write_len = 0xff; 9824 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 9825 if (lun != NULL) { 9826 bs = lun->be_lun->blocksize; 9827 scsi_ulto4b(lun->be_lun->opttxferlen, bl_ptr->opt_txfer_len); 9828 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 9829 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 9830 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 9831 if (lun->be_lun->ublockexp != 0) { 9832 scsi_ulto4b((1 << lun->be_lun->ublockexp), 9833 bl_ptr->opt_unmap_grain); 9834 scsi_ulto4b(0x80000000 | lun->be_lun->ublockoff, 9835 bl_ptr->unmap_grain_align); 9836 } 9837 } 9838 scsi_ulto4b(lun->be_lun->atomicblock, 9839 bl_ptr->max_atomic_transfer_length); 9840 scsi_ulto4b(0, bl_ptr->atomic_alignment); 9841 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 9842 } 9843 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 9844 9845 ctl_set_success(ctsio); 9846 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9847 ctsio->be_move_done = ctl_config_move_done; 9848 ctl_datamove((union ctl_io *)ctsio); 9849 return (CTL_RETVAL_COMPLETE); 9850} 9851 9852static int 9853ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 9854{ 9855 struct scsi_vpd_block_device_characteristics *bdc_ptr; 9856 struct ctl_lun *lun; 9857 const char *value; 9858 u_int i; 9859 9860 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9861 9862 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 9863 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 9864 ctsio->kern_sg_entries = 0; 9865 9866 if (sizeof(*bdc_ptr) < alloc_len) { 9867 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 9868 ctsio->kern_data_len = sizeof(*bdc_ptr); 9869 ctsio->kern_total_len = sizeof(*bdc_ptr); 9870 } else { 9871 ctsio->residual = 0; 9872 ctsio->kern_data_len = alloc_len; 9873 ctsio->kern_total_len = alloc_len; 9874 } 9875 ctsio->kern_data_resid = 0; 9876 ctsio->kern_rel_offset = 0; 9877 ctsio->kern_sg_entries = 0; 9878 9879 /* 9880 * The control device is always connected. The disk device, on the 9881 * other hand, may not be online all the time. Need to change this 9882 * to figure out whether the disk device is actually online or not. 9883 */ 9884 if (lun != NULL) 9885 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9886 lun->be_lun->lun_type; 9887 else 9888 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9889 bdc_ptr->page_code = SVPD_BDC; 9890 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 9891 if (lun != NULL && 9892 (value = ctl_get_opt(&lun->be_lun->options, "rpm")) != NULL) 9893 i = strtol(value, NULL, 0); 9894 else 9895 i = CTL_DEFAULT_ROTATION_RATE; 9896 scsi_ulto2b(i, bdc_ptr->medium_rotation_rate); 9897 if (lun != NULL && 9898 (value = ctl_get_opt(&lun->be_lun->options, "formfactor")) != NULL) 9899 i = strtol(value, NULL, 0); 9900 else 9901 i = 0; 9902 bdc_ptr->wab_wac_ff = (i & 0x0f); 9903 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 9904 9905 ctl_set_success(ctsio); 9906 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9907 ctsio->be_move_done = ctl_config_move_done; 9908 ctl_datamove((union ctl_io *)ctsio); 9909 return (CTL_RETVAL_COMPLETE); 9910} 9911 9912static int 9913ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 9914{ 9915 struct scsi_vpd_logical_block_prov *lbp_ptr; 9916 struct ctl_lun *lun; 9917 9918 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9919 9920 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 9921 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 9922 ctsio->kern_sg_entries = 0; 9923 9924 if (sizeof(*lbp_ptr) < alloc_len) { 9925 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 9926 ctsio->kern_data_len = sizeof(*lbp_ptr); 9927 ctsio->kern_total_len = sizeof(*lbp_ptr); 9928 } else { 9929 ctsio->residual = 0; 9930 ctsio->kern_data_len = alloc_len; 9931 ctsio->kern_total_len = alloc_len; 9932 } 9933 ctsio->kern_data_resid = 0; 9934 ctsio->kern_rel_offset = 0; 9935 ctsio->kern_sg_entries = 0; 9936 9937 /* 9938 * The control device is always connected. The disk device, on the 9939 * other hand, may not be online all the time. Need to change this 9940 * to figure out whether the disk device is actually online or not. 9941 */ 9942 if (lun != NULL) 9943 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9944 lun->be_lun->lun_type; 9945 else 9946 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9947 9948 lbp_ptr->page_code = SVPD_LBP; 9949 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 9950 lbp_ptr->threshold_exponent = CTL_LBP_EXPONENT; 9951 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 9952 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 9953 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 9954 lbp_ptr->prov_type = SVPD_LBP_THIN; 9955 } 9956 9957 ctl_set_success(ctsio); 9958 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9959 ctsio->be_move_done = ctl_config_move_done; 9960 ctl_datamove((union ctl_io *)ctsio); 9961 return (CTL_RETVAL_COMPLETE); 9962} 9963 9964/* 9965 * INQUIRY with the EVPD bit set. 9966 */ 9967static int 9968ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 9969{ 9970 struct ctl_lun *lun; 9971 struct scsi_inquiry *cdb; 9972 int alloc_len, retval; 9973 9974 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9975 cdb = (struct scsi_inquiry *)ctsio->cdb; 9976 alloc_len = scsi_2btoul(cdb->length); 9977 9978 switch (cdb->page_code) { 9979 case SVPD_SUPPORTED_PAGES: 9980 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 9981 break; 9982 case SVPD_UNIT_SERIAL_NUMBER: 9983 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 9984 break; 9985 case SVPD_DEVICE_ID: 9986 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 9987 break; 9988 case SVPD_EXTENDED_INQUIRY_DATA: 9989 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 9990 break; 9991 case SVPD_MODE_PAGE_POLICY: 9992 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 9993 break; 9994 case SVPD_SCSI_PORTS: 9995 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 9996 break; 9997 case SVPD_SCSI_TPC: 9998 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 9999 break; 10000 case SVPD_BLOCK_LIMITS: 10001 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10002 goto err; 10003 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10004 break; 10005 case SVPD_BDC: 10006 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10007 goto err; 10008 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10009 break; 10010 case SVPD_LBP: 10011 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10012 goto err; 10013 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10014 break; 10015 default: 10016err: 10017 ctl_set_invalid_field(ctsio, 10018 /*sks_valid*/ 1, 10019 /*command*/ 1, 10020 /*field*/ 2, 10021 /*bit_valid*/ 0, 10022 /*bit*/ 0); 10023 ctl_done((union ctl_io *)ctsio); 10024 retval = CTL_RETVAL_COMPLETE; 10025 break; 10026 } 10027 10028 return (retval); 10029} 10030 10031/* 10032 * Standard INQUIRY data. 10033 */ 10034static int 10035ctl_inquiry_std(struct ctl_scsiio *ctsio) 10036{ 10037 struct scsi_inquiry_data *inq_ptr; 10038 struct scsi_inquiry *cdb; 10039 struct ctl_softc *softc; 10040 struct ctl_port *port; 10041 struct ctl_lun *lun; 10042 char *val; 10043 uint32_t alloc_len, data_len; 10044 ctl_port_type port_type; 10045 10046 softc = control_softc; 10047 10048 /* 10049 * Figure out whether we're talking to a Fibre Channel port or not. 10050 * We treat the ioctl front end, and any SCSI adapters, as packetized 10051 * SCSI front ends. 10052 */ 10053 port = ctl_io_port(&ctsio->io_hdr); 10054 if (port != NULL) 10055 port_type = port->port_type; 10056 else 10057 port_type = CTL_PORT_SCSI; 10058 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10059 port_type = CTL_PORT_SCSI; 10060 10061 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10062 cdb = (struct scsi_inquiry *)ctsio->cdb; 10063 alloc_len = scsi_2btoul(cdb->length); 10064 10065 /* 10066 * We malloc the full inquiry data size here and fill it 10067 * in. If the user only asks for less, we'll give him 10068 * that much. 10069 */ 10070 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10071 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10072 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10073 ctsio->kern_sg_entries = 0; 10074 ctsio->kern_data_resid = 0; 10075 ctsio->kern_rel_offset = 0; 10076 10077 if (data_len < alloc_len) { 10078 ctsio->residual = alloc_len - data_len; 10079 ctsio->kern_data_len = data_len; 10080 ctsio->kern_total_len = data_len; 10081 } else { 10082 ctsio->residual = 0; 10083 ctsio->kern_data_len = alloc_len; 10084 ctsio->kern_total_len = alloc_len; 10085 } 10086 10087 if (lun != NULL) { 10088 if ((lun->flags & CTL_LUN_PRIMARY_SC) || 10089 softc->ha_link >= CTL_HA_LINK_UNKNOWN) { 10090 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10091 lun->be_lun->lun_type; 10092 } else { 10093 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | 10094 lun->be_lun->lun_type; 10095 } 10096 } else 10097 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10098 10099 /* RMB in byte 2 is 0 */ 10100 inq_ptr->version = SCSI_REV_SPC4; 10101 10102 /* 10103 * According to SAM-3, even if a device only supports a single 10104 * level of LUN addressing, it should still set the HISUP bit: 10105 * 10106 * 4.9.1 Logical unit numbers overview 10107 * 10108 * All logical unit number formats described in this standard are 10109 * hierarchical in structure even when only a single level in that 10110 * hierarchy is used. The HISUP bit shall be set to one in the 10111 * standard INQUIRY data (see SPC-2) when any logical unit number 10112 * format described in this standard is used. Non-hierarchical 10113 * formats are outside the scope of this standard. 10114 * 10115 * Therefore we set the HiSup bit here. 10116 * 10117 * The reponse format is 2, per SPC-3. 10118 */ 10119 inq_ptr->response_format = SID_HiSup | 2; 10120 10121 inq_ptr->additional_length = data_len - 10122 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10123 CTL_DEBUG_PRINT(("additional_length = %d\n", 10124 inq_ptr->additional_length)); 10125 10126 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10127 /* 16 bit addressing */ 10128 if (port_type == CTL_PORT_SCSI) 10129 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10130 /* XXX set the SID_MultiP bit here if we're actually going to 10131 respond on multiple ports */ 10132 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10133 10134 /* 16 bit data bus, synchronous transfers */ 10135 if (port_type == CTL_PORT_SCSI) 10136 inq_ptr->flags = SID_WBus16 | SID_Sync; 10137 /* 10138 * XXX KDM do we want to support tagged queueing on the control 10139 * device at all? 10140 */ 10141 if ((lun == NULL) 10142 || (lun->be_lun->lun_type != T_PROCESSOR)) 10143 inq_ptr->flags |= SID_CmdQue; 10144 /* 10145 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10146 * We have 8 bytes for the vendor name, and 16 bytes for the device 10147 * name and 4 bytes for the revision. 10148 */ 10149 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10150 "vendor")) == NULL) { 10151 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10152 } else { 10153 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10154 strncpy(inq_ptr->vendor, val, 10155 min(sizeof(inq_ptr->vendor), strlen(val))); 10156 } 10157 if (lun == NULL) { 10158 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10159 sizeof(inq_ptr->product)); 10160 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10161 switch (lun->be_lun->lun_type) { 10162 case T_DIRECT: 10163 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10164 sizeof(inq_ptr->product)); 10165 break; 10166 case T_PROCESSOR: 10167 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10168 sizeof(inq_ptr->product)); 10169 break; 10170 default: 10171 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10172 sizeof(inq_ptr->product)); 10173 break; 10174 } 10175 } else { 10176 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10177 strncpy(inq_ptr->product, val, 10178 min(sizeof(inq_ptr->product), strlen(val))); 10179 } 10180 10181 /* 10182 * XXX make this a macro somewhere so it automatically gets 10183 * incremented when we make changes. 10184 */ 10185 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10186 "revision")) == NULL) { 10187 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10188 } else { 10189 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10190 strncpy(inq_ptr->revision, val, 10191 min(sizeof(inq_ptr->revision), strlen(val))); 10192 } 10193 10194 /* 10195 * For parallel SCSI, we support double transition and single 10196 * transition clocking. We also support QAS (Quick Arbitration 10197 * and Selection) and Information Unit transfers on both the 10198 * control and array devices. 10199 */ 10200 if (port_type == CTL_PORT_SCSI) 10201 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10202 SID_SPI_IUS; 10203 10204 /* SAM-5 (no version claimed) */ 10205 scsi_ulto2b(0x00A0, inq_ptr->version1); 10206 /* SPC-4 (no version claimed) */ 10207 scsi_ulto2b(0x0460, inq_ptr->version2); 10208 if (port_type == CTL_PORT_FC) { 10209 /* FCP-2 ANSI INCITS.350:2003 */ 10210 scsi_ulto2b(0x0917, inq_ptr->version3); 10211 } else if (port_type == CTL_PORT_SCSI) { 10212 /* SPI-4 ANSI INCITS.362:200x */ 10213 scsi_ulto2b(0x0B56, inq_ptr->version3); 10214 } else if (port_type == CTL_PORT_ISCSI) { 10215 /* iSCSI (no version claimed) */ 10216 scsi_ulto2b(0x0960, inq_ptr->version3); 10217 } else if (port_type == CTL_PORT_SAS) { 10218 /* SAS (no version claimed) */ 10219 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10220 } 10221 10222 if (lun == NULL) { 10223 /* SBC-4 (no version claimed) */ 10224 scsi_ulto2b(0x0600, inq_ptr->version4); 10225 } else { 10226 switch (lun->be_lun->lun_type) { 10227 case T_DIRECT: 10228 /* SBC-4 (no version claimed) */ 10229 scsi_ulto2b(0x0600, inq_ptr->version4); 10230 break; 10231 case T_PROCESSOR: 10232 default: 10233 break; 10234 } 10235 } 10236 10237 ctl_set_success(ctsio); 10238 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10239 ctsio->be_move_done = ctl_config_move_done; 10240 ctl_datamove((union ctl_io *)ctsio); 10241 return (CTL_RETVAL_COMPLETE); 10242} 10243 10244int 10245ctl_inquiry(struct ctl_scsiio *ctsio) 10246{ 10247 struct scsi_inquiry *cdb; 10248 int retval; 10249 10250 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10251 10252 cdb = (struct scsi_inquiry *)ctsio->cdb; 10253 if (cdb->byte2 & SI_EVPD) 10254 retval = ctl_inquiry_evpd(ctsio); 10255 else if (cdb->page_code == 0) 10256 retval = ctl_inquiry_std(ctsio); 10257 else { 10258 ctl_set_invalid_field(ctsio, 10259 /*sks_valid*/ 1, 10260 /*command*/ 1, 10261 /*field*/ 2, 10262 /*bit_valid*/ 0, 10263 /*bit*/ 0); 10264 ctl_done((union ctl_io *)ctsio); 10265 return (CTL_RETVAL_COMPLETE); 10266 } 10267 10268 return (retval); 10269} 10270 10271/* 10272 * For known CDB types, parse the LBA and length. 10273 */ 10274static int 10275ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10276{ 10277 if (io->io_hdr.io_type != CTL_IO_SCSI) 10278 return (1); 10279 10280 switch (io->scsiio.cdb[0]) { 10281 case COMPARE_AND_WRITE: { 10282 struct scsi_compare_and_write *cdb; 10283 10284 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10285 10286 *lba = scsi_8btou64(cdb->addr); 10287 *len = cdb->length; 10288 break; 10289 } 10290 case READ_6: 10291 case WRITE_6: { 10292 struct scsi_rw_6 *cdb; 10293 10294 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10295 10296 *lba = scsi_3btoul(cdb->addr); 10297 /* only 5 bits are valid in the most significant address byte */ 10298 *lba &= 0x1fffff; 10299 *len = cdb->length; 10300 break; 10301 } 10302 case READ_10: 10303 case WRITE_10: { 10304 struct scsi_rw_10 *cdb; 10305 10306 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10307 10308 *lba = scsi_4btoul(cdb->addr); 10309 *len = scsi_2btoul(cdb->length); 10310 break; 10311 } 10312 case WRITE_VERIFY_10: { 10313 struct scsi_write_verify_10 *cdb; 10314 10315 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10316 10317 *lba = scsi_4btoul(cdb->addr); 10318 *len = scsi_2btoul(cdb->length); 10319 break; 10320 } 10321 case READ_12: 10322 case WRITE_12: { 10323 struct scsi_rw_12 *cdb; 10324 10325 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10326 10327 *lba = scsi_4btoul(cdb->addr); 10328 *len = scsi_4btoul(cdb->length); 10329 break; 10330 } 10331 case WRITE_VERIFY_12: { 10332 struct scsi_write_verify_12 *cdb; 10333 10334 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10335 10336 *lba = scsi_4btoul(cdb->addr); 10337 *len = scsi_4btoul(cdb->length); 10338 break; 10339 } 10340 case READ_16: 10341 case WRITE_16: 10342 case WRITE_ATOMIC_16: { 10343 struct scsi_rw_16 *cdb; 10344 10345 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10346 10347 *lba = scsi_8btou64(cdb->addr); 10348 *len = scsi_4btoul(cdb->length); 10349 break; 10350 } 10351 case WRITE_VERIFY_16: { 10352 struct scsi_write_verify_16 *cdb; 10353 10354 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10355 10356 *lba = scsi_8btou64(cdb->addr); 10357 *len = scsi_4btoul(cdb->length); 10358 break; 10359 } 10360 case WRITE_SAME_10: { 10361 struct scsi_write_same_10 *cdb; 10362 10363 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10364 10365 *lba = scsi_4btoul(cdb->addr); 10366 *len = scsi_2btoul(cdb->length); 10367 break; 10368 } 10369 case WRITE_SAME_16: { 10370 struct scsi_write_same_16 *cdb; 10371 10372 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10373 10374 *lba = scsi_8btou64(cdb->addr); 10375 *len = scsi_4btoul(cdb->length); 10376 break; 10377 } 10378 case VERIFY_10: { 10379 struct scsi_verify_10 *cdb; 10380 10381 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10382 10383 *lba = scsi_4btoul(cdb->addr); 10384 *len = scsi_2btoul(cdb->length); 10385 break; 10386 } 10387 case VERIFY_12: { 10388 struct scsi_verify_12 *cdb; 10389 10390 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10391 10392 *lba = scsi_4btoul(cdb->addr); 10393 *len = scsi_4btoul(cdb->length); 10394 break; 10395 } 10396 case VERIFY_16: { 10397 struct scsi_verify_16 *cdb; 10398 10399 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10400 10401 *lba = scsi_8btou64(cdb->addr); 10402 *len = scsi_4btoul(cdb->length); 10403 break; 10404 } 10405 case UNMAP: { 10406 *lba = 0; 10407 *len = UINT64_MAX; 10408 break; 10409 } 10410 case SERVICE_ACTION_IN: { /* GET LBA STATUS */ 10411 struct scsi_get_lba_status *cdb; 10412 10413 cdb = (struct scsi_get_lba_status *)io->scsiio.cdb; 10414 *lba = scsi_8btou64(cdb->addr); 10415 *len = UINT32_MAX; 10416 break; 10417 } 10418 default: 10419 return (1); 10420 break; /* NOTREACHED */ 10421 } 10422 10423 return (0); 10424} 10425 10426static ctl_action 10427ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2, 10428 bool seq) 10429{ 10430 uint64_t endlba1, endlba2; 10431 10432 endlba1 = lba1 + len1 - (seq ? 0 : 1); 10433 endlba2 = lba2 + len2 - 1; 10434 10435 if ((endlba1 < lba2) || (endlba2 < lba1)) 10436 return (CTL_ACTION_PASS); 10437 else 10438 return (CTL_ACTION_BLOCK); 10439} 10440 10441static int 10442ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10443{ 10444 struct ctl_ptr_len_flags *ptrlen; 10445 struct scsi_unmap_desc *buf, *end, *range; 10446 uint64_t lba; 10447 uint32_t len; 10448 10449 /* If not UNMAP -- go other way. */ 10450 if (io->io_hdr.io_type != CTL_IO_SCSI || 10451 io->scsiio.cdb[0] != UNMAP) 10452 return (CTL_ACTION_ERROR); 10453 10454 /* If UNMAP without data -- block and wait for data. */ 10455 ptrlen = (struct ctl_ptr_len_flags *) 10456 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10457 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10458 ptrlen->ptr == NULL) 10459 return (CTL_ACTION_BLOCK); 10460 10461 /* UNMAP with data -- check for collision. */ 10462 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10463 end = buf + ptrlen->len / sizeof(*buf); 10464 for (range = buf; range < end; range++) { 10465 lba = scsi_8btou64(range->lba); 10466 len = scsi_4btoul(range->length); 10467 if ((lba < lba2 + len2) && (lba + len > lba2)) 10468 return (CTL_ACTION_BLOCK); 10469 } 10470 return (CTL_ACTION_PASS); 10471} 10472 10473static ctl_action 10474ctl_extent_check(union ctl_io *io1, union ctl_io *io2, bool seq) 10475{ 10476 uint64_t lba1, lba2; 10477 uint64_t len1, len2; 10478 int retval; 10479 10480 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10481 return (CTL_ACTION_ERROR); 10482 10483 retval = ctl_extent_check_unmap(io1, lba2, len2); 10484 if (retval != CTL_ACTION_ERROR) 10485 return (retval); 10486 10487 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10488 return (CTL_ACTION_ERROR); 10489 10490 return (ctl_extent_check_lba(lba1, len1, lba2, len2, seq)); 10491} 10492 10493static ctl_action 10494ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2) 10495{ 10496 uint64_t lba1, lba2; 10497 uint64_t len1, len2; 10498 10499 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10500 return (CTL_ACTION_ERROR); 10501 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10502 return (CTL_ACTION_ERROR); 10503 10504 if (lba1 + len1 == lba2) 10505 return (CTL_ACTION_BLOCK); 10506 return (CTL_ACTION_PASS); 10507} 10508 10509static ctl_action 10510ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10511 union ctl_io *ooa_io) 10512{ 10513 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10514 ctl_serialize_action *serialize_row; 10515 10516 /* 10517 * The initiator attempted multiple untagged commands at the same 10518 * time. Can't do that. 10519 */ 10520 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10521 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10522 && ((pending_io->io_hdr.nexus.targ_port == 10523 ooa_io->io_hdr.nexus.targ_port) 10524 && (pending_io->io_hdr.nexus.initid == 10525 ooa_io->io_hdr.nexus.initid)) 10526 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 10527 CTL_FLAG_STATUS_SENT)) == 0)) 10528 return (CTL_ACTION_OVERLAP); 10529 10530 /* 10531 * The initiator attempted to send multiple tagged commands with 10532 * the same ID. (It's fine if different initiators have the same 10533 * tag ID.) 10534 * 10535 * Even if all of those conditions are true, we don't kill the I/O 10536 * if the command ahead of us has been aborted. We won't end up 10537 * sending it to the FETD, and it's perfectly legal to resend a 10538 * command with the same tag number as long as the previous 10539 * instance of this tag number has been aborted somehow. 10540 */ 10541 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10542 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10543 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10544 && ((pending_io->io_hdr.nexus.targ_port == 10545 ooa_io->io_hdr.nexus.targ_port) 10546 && (pending_io->io_hdr.nexus.initid == 10547 ooa_io->io_hdr.nexus.initid)) 10548 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 10549 CTL_FLAG_STATUS_SENT)) == 0)) 10550 return (CTL_ACTION_OVERLAP_TAG); 10551 10552 /* 10553 * If we get a head of queue tag, SAM-3 says that we should 10554 * immediately execute it. 10555 * 10556 * What happens if this command would normally block for some other 10557 * reason? e.g. a request sense with a head of queue tag 10558 * immediately after a write. Normally that would block, but this 10559 * will result in its getting executed immediately... 10560 * 10561 * We currently return "pass" instead of "skip", so we'll end up 10562 * going through the rest of the queue to check for overlapped tags. 10563 * 10564 * XXX KDM check for other types of blockage first?? 10565 */ 10566 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10567 return (CTL_ACTION_PASS); 10568 10569 /* 10570 * Ordered tags have to block until all items ahead of them 10571 * have completed. If we get called with an ordered tag, we always 10572 * block, if something else is ahead of us in the queue. 10573 */ 10574 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 10575 return (CTL_ACTION_BLOCK); 10576 10577 /* 10578 * Simple tags get blocked until all head of queue and ordered tags 10579 * ahead of them have completed. I'm lumping untagged commands in 10580 * with simple tags here. XXX KDM is that the right thing to do? 10581 */ 10582 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10583 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 10584 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10585 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 10586 return (CTL_ACTION_BLOCK); 10587 10588 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 10589 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 10590 10591 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 10592 10593 switch (serialize_row[pending_entry->seridx]) { 10594 case CTL_SER_BLOCK: 10595 return (CTL_ACTION_BLOCK); 10596 case CTL_SER_EXTENT: 10597 return (ctl_extent_check(ooa_io, pending_io, 10598 (lun->be_lun && lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 10599 case CTL_SER_EXTENTOPT: 10600 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 10601 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 10602 return (ctl_extent_check(ooa_io, pending_io, 10603 (lun->be_lun && 10604 lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 10605 return (CTL_ACTION_PASS); 10606 case CTL_SER_EXTENTSEQ: 10607 if (lun->be_lun && lun->be_lun->serseq != CTL_LUN_SERSEQ_OFF) 10608 return (ctl_extent_check_seq(ooa_io, pending_io)); 10609 return (CTL_ACTION_PASS); 10610 case CTL_SER_PASS: 10611 return (CTL_ACTION_PASS); 10612 case CTL_SER_BLOCKOPT: 10613 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 10614 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 10615 return (CTL_ACTION_BLOCK); 10616 return (CTL_ACTION_PASS); 10617 case CTL_SER_SKIP: 10618 return (CTL_ACTION_SKIP); 10619 default: 10620 panic("invalid serialization value %d", 10621 serialize_row[pending_entry->seridx]); 10622 } 10623 10624 return (CTL_ACTION_ERROR); 10625} 10626 10627/* 10628 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 10629 * Assumptions: 10630 * - pending_io is generally either incoming, or on the blocked queue 10631 * - starting I/O is the I/O we want to start the check with. 10632 */ 10633static ctl_action 10634ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 10635 union ctl_io *starting_io) 10636{ 10637 union ctl_io *ooa_io; 10638 ctl_action action; 10639 10640 mtx_assert(&lun->lun_lock, MA_OWNED); 10641 10642 /* 10643 * Run back along the OOA queue, starting with the current 10644 * blocked I/O and going through every I/O before it on the 10645 * queue. If starting_io is NULL, we'll just end up returning 10646 * CTL_ACTION_PASS. 10647 */ 10648 for (ooa_io = starting_io; ooa_io != NULL; 10649 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 10650 ooa_links)){ 10651 10652 /* 10653 * This routine just checks to see whether 10654 * cur_blocked is blocked by ooa_io, which is ahead 10655 * of it in the queue. It doesn't queue/dequeue 10656 * cur_blocked. 10657 */ 10658 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 10659 switch (action) { 10660 case CTL_ACTION_BLOCK: 10661 case CTL_ACTION_OVERLAP: 10662 case CTL_ACTION_OVERLAP_TAG: 10663 case CTL_ACTION_SKIP: 10664 case CTL_ACTION_ERROR: 10665 return (action); 10666 break; /* NOTREACHED */ 10667 case CTL_ACTION_PASS: 10668 break; 10669 default: 10670 panic("invalid action %d", action); 10671 break; /* NOTREACHED */ 10672 } 10673 } 10674 10675 return (CTL_ACTION_PASS); 10676} 10677 10678/* 10679 * Assumptions: 10680 * - An I/O has just completed, and has been removed from the per-LUN OOA 10681 * queue, so some items on the blocked queue may now be unblocked. 10682 */ 10683static int 10684ctl_check_blocked(struct ctl_lun *lun) 10685{ 10686 struct ctl_softc *softc = lun->ctl_softc; 10687 union ctl_io *cur_blocked, *next_blocked; 10688 10689 mtx_assert(&lun->lun_lock, MA_OWNED); 10690 10691 /* 10692 * Run forward from the head of the blocked queue, checking each 10693 * entry against the I/Os prior to it on the OOA queue to see if 10694 * there is still any blockage. 10695 * 10696 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 10697 * with our removing a variable on it while it is traversing the 10698 * list. 10699 */ 10700 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 10701 cur_blocked != NULL; cur_blocked = next_blocked) { 10702 union ctl_io *prev_ooa; 10703 ctl_action action; 10704 10705 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 10706 blocked_links); 10707 10708 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 10709 ctl_ooaq, ooa_links); 10710 10711 /* 10712 * If cur_blocked happens to be the first item in the OOA 10713 * queue now, prev_ooa will be NULL, and the action 10714 * returned will just be CTL_ACTION_PASS. 10715 */ 10716 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 10717 10718 switch (action) { 10719 case CTL_ACTION_BLOCK: 10720 /* Nothing to do here, still blocked */ 10721 break; 10722 case CTL_ACTION_OVERLAP: 10723 case CTL_ACTION_OVERLAP_TAG: 10724 /* 10725 * This shouldn't happen! In theory we've already 10726 * checked this command for overlap... 10727 */ 10728 break; 10729 case CTL_ACTION_PASS: 10730 case CTL_ACTION_SKIP: { 10731 const struct ctl_cmd_entry *entry; 10732 10733 /* 10734 * The skip case shouldn't happen, this transaction 10735 * should have never made it onto the blocked queue. 10736 */ 10737 /* 10738 * This I/O is no longer blocked, we can remove it 10739 * from the blocked queue. Since this is a TAILQ 10740 * (doubly linked list), we can do O(1) removals 10741 * from any place on the list. 10742 */ 10743 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 10744 blocked_links); 10745 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 10746 10747 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 10748 (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)){ 10749 /* 10750 * Need to send IO back to original side to 10751 * run 10752 */ 10753 union ctl_ha_msg msg_info; 10754 10755 cur_blocked->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 10756 msg_info.hdr.original_sc = 10757 cur_blocked->io_hdr.original_sc; 10758 msg_info.hdr.serializing_sc = cur_blocked; 10759 msg_info.hdr.msg_type = CTL_MSG_R2R; 10760 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 10761 sizeof(msg_info.hdr), M_NOWAIT); 10762 break; 10763 } 10764 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 10765 10766 /* 10767 * Check this I/O for LUN state changes that may 10768 * have happened while this command was blocked. 10769 * The LUN state may have been changed by a command 10770 * ahead of us in the queue, so we need to re-check 10771 * for any states that can be caused by SCSI 10772 * commands. 10773 */ 10774 if (ctl_scsiio_lun_check(lun, entry, 10775 &cur_blocked->scsiio) == 0) { 10776 cur_blocked->io_hdr.flags |= 10777 CTL_FLAG_IS_WAS_ON_RTR; 10778 ctl_enqueue_rtr(cur_blocked); 10779 } else 10780 ctl_done(cur_blocked); 10781 break; 10782 } 10783 default: 10784 /* 10785 * This probably shouldn't happen -- we shouldn't 10786 * get CTL_ACTION_ERROR, or anything else. 10787 */ 10788 break; 10789 } 10790 } 10791 10792 return (CTL_RETVAL_COMPLETE); 10793} 10794 10795/* 10796 * This routine (with one exception) checks LUN flags that can be set by 10797 * commands ahead of us in the OOA queue. These flags have to be checked 10798 * when a command initially comes in, and when we pull a command off the 10799 * blocked queue and are preparing to execute it. The reason we have to 10800 * check these flags for commands on the blocked queue is that the LUN 10801 * state may have been changed by a command ahead of us while we're on the 10802 * blocked queue. 10803 * 10804 * Ordering is somewhat important with these checks, so please pay 10805 * careful attention to the placement of any new checks. 10806 */ 10807static int 10808ctl_scsiio_lun_check(struct ctl_lun *lun, 10809 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 10810{ 10811 struct ctl_softc *softc = lun->ctl_softc; 10812 int retval; 10813 uint32_t residx; 10814 10815 retval = 0; 10816 10817 mtx_assert(&lun->lun_lock, MA_OWNED); 10818 10819 /* 10820 * If this shelf is a secondary shelf controller, we may have to 10821 * reject some commands disallowed by HA mode and link state. 10822 */ 10823 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 10824 if (softc->ha_link == CTL_HA_LINK_OFFLINE && 10825 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 10826 ctl_set_lun_unavail(ctsio); 10827 retval = 1; 10828 goto bailout; 10829 } 10830 if ((lun->flags & CTL_LUN_PEER_SC_PRIMARY) == 0 && 10831 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 10832 ctl_set_lun_transit(ctsio); 10833 retval = 1; 10834 goto bailout; 10835 } 10836 if (softc->ha_mode == CTL_HA_MODE_ACT_STBY && 10837 (entry->flags & CTL_CMD_FLAG_OK_ON_STANDBY) == 0) { 10838 ctl_set_lun_standby(ctsio); 10839 retval = 1; 10840 goto bailout; 10841 } 10842 10843 /* The rest of checks are only done on executing side */ 10844 if (softc->ha_mode == CTL_HA_MODE_XFER) 10845 goto bailout; 10846 } 10847 10848 if (entry->pattern & CTL_LUN_PAT_WRITE) { 10849 if (lun->be_lun && 10850 lun->be_lun->flags & CTL_LUN_FLAG_READONLY) { 10851 ctl_set_hw_write_protected(ctsio); 10852 retval = 1; 10853 goto bailout; 10854 } 10855 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT] 10856 .eca_and_aen & SCP_SWP) != 0) { 10857 ctl_set_sense(ctsio, /*current_error*/ 1, 10858 /*sense_key*/ SSD_KEY_DATA_PROTECT, 10859 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 10860 retval = 1; 10861 goto bailout; 10862 } 10863 } 10864 10865 /* 10866 * Check for a reservation conflict. If this command isn't allowed 10867 * even on reserved LUNs, and if this initiator isn't the one who 10868 * reserved us, reject the command with a reservation conflict. 10869 */ 10870 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 10871 if ((lun->flags & CTL_LUN_RESERVED) 10872 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 10873 if (lun->res_idx != residx) { 10874 ctl_set_reservation_conflict(ctsio); 10875 retval = 1; 10876 goto bailout; 10877 } 10878 } 10879 10880 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0 || 10881 (entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV)) { 10882 /* No reservation or command is allowed. */; 10883 } else if ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_WRESV) && 10884 (lun->res_type == SPR_TYPE_WR_EX || 10885 lun->res_type == SPR_TYPE_WR_EX_RO || 10886 lun->res_type == SPR_TYPE_WR_EX_AR)) { 10887 /* The command is allowed for Write Exclusive resv. */; 10888 } else { 10889 /* 10890 * if we aren't registered or it's a res holder type 10891 * reservation and this isn't the res holder then set a 10892 * conflict. 10893 */ 10894 if (ctl_get_prkey(lun, residx) == 0 10895 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 10896 ctl_set_reservation_conflict(ctsio); 10897 retval = 1; 10898 goto bailout; 10899 } 10900 } 10901 10902 if ((lun->flags & CTL_LUN_OFFLINE) 10903 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STANDBY) == 0)) { 10904 ctl_set_lun_not_ready(ctsio); 10905 retval = 1; 10906 goto bailout; 10907 } 10908 10909 if ((lun->flags & CTL_LUN_STOPPED) 10910 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 10911 /* "Logical unit not ready, initializing cmd. required" */ 10912 ctl_set_lun_stopped(ctsio); 10913 retval = 1; 10914 goto bailout; 10915 } 10916 10917 if ((lun->flags & CTL_LUN_INOPERABLE) 10918 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 10919 /* "Medium format corrupted" */ 10920 ctl_set_medium_format_corrupted(ctsio); 10921 retval = 1; 10922 goto bailout; 10923 } 10924 10925bailout: 10926 return (retval); 10927} 10928 10929static void 10930ctl_failover_io(union ctl_io *io, int have_lock) 10931{ 10932 ctl_set_busy(&io->scsiio); 10933 ctl_done(io); 10934} 10935 10936static void 10937ctl_failover_lun(struct ctl_lun *lun) 10938{ 10939 struct ctl_softc *softc = lun->ctl_softc; 10940 struct ctl_io_hdr *io, *next_io; 10941 10942 CTL_DEBUG_PRINT(("FAILOVER for lun %ju\n", lun->lun)); 10943 if (softc->ha_mode == CTL_HA_MODE_XFER) { 10944 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 10945 /* We are master */ 10946 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 10947 if (io->flags & CTL_FLAG_IO_ACTIVE) { 10948 io->flags |= CTL_FLAG_ABORT; 10949 } else { /* This can be only due to DATAMOVE */ 10950 io->msg_type = CTL_MSG_DATAMOVE_DONE; 10951 io->flags |= CTL_FLAG_IO_ACTIVE; 10952 io->port_status = 31340; 10953 ctl_enqueue_isc((union ctl_io *)io); 10954 } 10955 } 10956 /* We are slave */ 10957 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 10958 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 10959 if (io->flags & CTL_FLAG_IO_ACTIVE) { 10960 io->flags |= CTL_FLAG_FAILOVER; 10961 } else { 10962 ctl_set_busy(&((union ctl_io *)io)-> 10963 scsiio); 10964 ctl_done((union ctl_io *)io); 10965 } 10966 } 10967 } 10968 } else { /* SERIALIZE modes */ 10969 TAILQ_FOREACH_SAFE(io, &lun->blocked_queue, blocked_links, 10970 next_io) { 10971 /* We are master */ 10972 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 10973 TAILQ_REMOVE(&lun->blocked_queue, io, 10974 blocked_links); 10975 io->flags &= ~CTL_FLAG_BLOCKED; 10976 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 10977 ctl_free_io((union ctl_io *)io); 10978 } 10979 } 10980 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 10981 /* We are master */ 10982 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 10983 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 10984 ctl_free_io((union ctl_io *)io); 10985 } 10986 /* We are slave */ 10987 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 10988 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 10989 if (!(io->flags & CTL_FLAG_IO_ACTIVE)) { 10990 ctl_set_busy(&((union ctl_io *)io)-> 10991 scsiio); 10992 ctl_done((union ctl_io *)io); 10993 } 10994 } 10995 } 10996 ctl_check_blocked(lun); 10997 } 10998} 10999 11000static int 11001ctl_scsiio_precheck(struct ctl_softc *softc, struct ctl_scsiio *ctsio) 11002{ 11003 struct ctl_lun *lun; 11004 const struct ctl_cmd_entry *entry; 11005 uint32_t initidx, targ_lun; 11006 int retval; 11007 11008 retval = 0; 11009 11010 lun = NULL; 11011 11012 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11013 if ((targ_lun < CTL_MAX_LUNS) 11014 && ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 11015 /* 11016 * If the LUN is invalid, pretend that it doesn't exist. 11017 * It will go away as soon as all pending I/O has been 11018 * completed. 11019 */ 11020 mtx_lock(&lun->lun_lock); 11021 if (lun->flags & CTL_LUN_DISABLED) { 11022 mtx_unlock(&lun->lun_lock); 11023 lun = NULL; 11024 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11025 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11026 } else { 11027 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11028 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11029 lun->be_lun; 11030 11031 /* 11032 * Every I/O goes into the OOA queue for a 11033 * particular LUN, and stays there until completion. 11034 */ 11035#ifdef CTL_TIME_IO 11036 if (TAILQ_EMPTY(&lun->ooa_queue)) { 11037 lun->idle_time += getsbinuptime() - 11038 lun->last_busy; 11039 } 11040#endif 11041 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11042 ooa_links); 11043 } 11044 } else { 11045 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11046 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11047 } 11048 11049 /* Get command entry and return error if it is unsuppotyed. */ 11050 entry = ctl_validate_command(ctsio); 11051 if (entry == NULL) { 11052 if (lun) 11053 mtx_unlock(&lun->lun_lock); 11054 return (retval); 11055 } 11056 11057 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11058 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11059 11060 /* 11061 * Check to see whether we can send this command to LUNs that don't 11062 * exist. This should pretty much only be the case for inquiry 11063 * and request sense. Further checks, below, really require having 11064 * a LUN, so we can't really check the command anymore. Just put 11065 * it on the rtr queue. 11066 */ 11067 if (lun == NULL) { 11068 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) { 11069 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11070 ctl_enqueue_rtr((union ctl_io *)ctsio); 11071 return (retval); 11072 } 11073 11074 ctl_set_unsupported_lun(ctsio); 11075 ctl_done((union ctl_io *)ctsio); 11076 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11077 return (retval); 11078 } else { 11079 /* 11080 * Make sure we support this particular command on this LUN. 11081 * e.g., we don't support writes to the control LUN. 11082 */ 11083 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11084 mtx_unlock(&lun->lun_lock); 11085 ctl_set_invalid_opcode(ctsio); 11086 ctl_done((union ctl_io *)ctsio); 11087 return (retval); 11088 } 11089 } 11090 11091 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11092 11093#ifdef CTL_WITH_CA 11094 /* 11095 * If we've got a request sense, it'll clear the contingent 11096 * allegiance condition. Otherwise, if we have a CA condition for 11097 * this initiator, clear it, because it sent down a command other 11098 * than request sense. 11099 */ 11100 if ((ctsio->cdb[0] != REQUEST_SENSE) 11101 && (ctl_is_set(lun->have_ca, initidx))) 11102 ctl_clear_mask(lun->have_ca, initidx); 11103#endif 11104 11105 /* 11106 * If the command has this flag set, it handles its own unit 11107 * attention reporting, we shouldn't do anything. Otherwise we 11108 * check for any pending unit attentions, and send them back to the 11109 * initiator. We only do this when a command initially comes in, 11110 * not when we pull it off the blocked queue. 11111 * 11112 * According to SAM-3, section 5.3.2, the order that things get 11113 * presented back to the host is basically unit attentions caused 11114 * by some sort of reset event, busy status, reservation conflicts 11115 * or task set full, and finally any other status. 11116 * 11117 * One issue here is that some of the unit attentions we report 11118 * don't fall into the "reset" category (e.g. "reported luns data 11119 * has changed"). So reporting it here, before the reservation 11120 * check, may be technically wrong. I guess the only thing to do 11121 * would be to check for and report the reset events here, and then 11122 * check for the other unit attention types after we check for a 11123 * reservation conflict. 11124 * 11125 * XXX KDM need to fix this 11126 */ 11127 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11128 ctl_ua_type ua_type; 11129 scsi_sense_data_type sense_format; 11130 11131 if (lun->flags & CTL_LUN_SENSE_DESC) 11132 sense_format = SSD_TYPE_DESC; 11133 else 11134 sense_format = SSD_TYPE_FIXED; 11135 11136 ua_type = ctl_build_ua(lun, initidx, &ctsio->sense_data, 11137 sense_format); 11138 if (ua_type != CTL_UA_NONE) { 11139 mtx_unlock(&lun->lun_lock); 11140 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11141 ctsio->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 11142 ctsio->sense_len = SSD_FULL_SIZE; 11143 ctl_done((union ctl_io *)ctsio); 11144 return (retval); 11145 } 11146 } 11147 11148 11149 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 11150 mtx_unlock(&lun->lun_lock); 11151 ctl_done((union ctl_io *)ctsio); 11152 return (retval); 11153 } 11154 11155 /* 11156 * XXX CHD this is where we want to send IO to other side if 11157 * this LUN is secondary on this SC. We will need to make a copy 11158 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11159 * the copy we send as FROM_OTHER. 11160 * We also need to stuff the address of the original IO so we can 11161 * find it easily. Something similar will need be done on the other 11162 * side so when we are done we can find the copy. 11163 */ 11164 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 11165 (lun->flags & CTL_LUN_PEER_SC_PRIMARY) != 0) { 11166 union ctl_ha_msg msg_info; 11167 int isc_retval; 11168 11169 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11170 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11171 mtx_unlock(&lun->lun_lock); 11172 11173 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11174 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11175 msg_info.hdr.serializing_sc = NULL; 11176 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11177 msg_info.scsi.tag_num = ctsio->tag_num; 11178 msg_info.scsi.tag_type = ctsio->tag_type; 11179 msg_info.scsi.cdb_len = ctsio->cdb_len; 11180 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11181 11182 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11183 sizeof(msg_info.scsi) - sizeof(msg_info.scsi.sense_data), 11184 M_WAITOK)) > CTL_HA_STATUS_SUCCESS) { 11185 ctl_set_busy(ctsio); 11186 ctl_done((union ctl_io *)ctsio); 11187 return (retval); 11188 } 11189 return (retval); 11190 } 11191 11192 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11193 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11194 ctl_ooaq, ooa_links))) { 11195 case CTL_ACTION_BLOCK: 11196 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11197 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11198 blocked_links); 11199 mtx_unlock(&lun->lun_lock); 11200 return (retval); 11201 case CTL_ACTION_PASS: 11202 case CTL_ACTION_SKIP: 11203 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11204 mtx_unlock(&lun->lun_lock); 11205 ctl_enqueue_rtr((union ctl_io *)ctsio); 11206 break; 11207 case CTL_ACTION_OVERLAP: 11208 mtx_unlock(&lun->lun_lock); 11209 ctl_set_overlapped_cmd(ctsio); 11210 ctl_done((union ctl_io *)ctsio); 11211 break; 11212 case CTL_ACTION_OVERLAP_TAG: 11213 mtx_unlock(&lun->lun_lock); 11214 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11215 ctl_done((union ctl_io *)ctsio); 11216 break; 11217 case CTL_ACTION_ERROR: 11218 default: 11219 mtx_unlock(&lun->lun_lock); 11220 ctl_set_internal_failure(ctsio, 11221 /*sks_valid*/ 0, 11222 /*retry_count*/ 0); 11223 ctl_done((union ctl_io *)ctsio); 11224 break; 11225 } 11226 return (retval); 11227} 11228 11229const struct ctl_cmd_entry * 11230ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11231{ 11232 const struct ctl_cmd_entry *entry; 11233 int service_action; 11234 11235 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11236 if (sa) 11237 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11238 if (entry->flags & CTL_CMD_FLAG_SA5) { 11239 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11240 entry = &((const struct ctl_cmd_entry *) 11241 entry->execute)[service_action]; 11242 } 11243 return (entry); 11244} 11245 11246const struct ctl_cmd_entry * 11247ctl_validate_command(struct ctl_scsiio *ctsio) 11248{ 11249 const struct ctl_cmd_entry *entry; 11250 int i, sa; 11251 uint8_t diff; 11252 11253 entry = ctl_get_cmd_entry(ctsio, &sa); 11254 if (entry->execute == NULL) { 11255 if (sa) 11256 ctl_set_invalid_field(ctsio, 11257 /*sks_valid*/ 1, 11258 /*command*/ 1, 11259 /*field*/ 1, 11260 /*bit_valid*/ 1, 11261 /*bit*/ 4); 11262 else 11263 ctl_set_invalid_opcode(ctsio); 11264 ctl_done((union ctl_io *)ctsio); 11265 return (NULL); 11266 } 11267 KASSERT(entry->length > 0, 11268 ("Not defined length for command 0x%02x/0x%02x", 11269 ctsio->cdb[0], ctsio->cdb[1])); 11270 for (i = 1; i < entry->length; i++) { 11271 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11272 if (diff == 0) 11273 continue; 11274 ctl_set_invalid_field(ctsio, 11275 /*sks_valid*/ 1, 11276 /*command*/ 1, 11277 /*field*/ i, 11278 /*bit_valid*/ 1, 11279 /*bit*/ fls(diff) - 1); 11280 ctl_done((union ctl_io *)ctsio); 11281 return (NULL); 11282 } 11283 return (entry); 11284} 11285 11286static int 11287ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11288{ 11289 11290 switch (lun_type) { 11291 case T_PROCESSOR: 11292 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) && 11293 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11294 return (0); 11295 break; 11296 case T_DIRECT: 11297 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) && 11298 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11299 return (0); 11300 break; 11301 default: 11302 return (0); 11303 } 11304 return (1); 11305} 11306 11307static int 11308ctl_scsiio(struct ctl_scsiio *ctsio) 11309{ 11310 int retval; 11311 const struct ctl_cmd_entry *entry; 11312 11313 retval = CTL_RETVAL_COMPLETE; 11314 11315 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11316 11317 entry = ctl_get_cmd_entry(ctsio, NULL); 11318 11319 /* 11320 * If this I/O has been aborted, just send it straight to 11321 * ctl_done() without executing it. 11322 */ 11323 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11324 ctl_done((union ctl_io *)ctsio); 11325 goto bailout; 11326 } 11327 11328 /* 11329 * All the checks should have been handled by ctl_scsiio_precheck(). 11330 * We should be clear now to just execute the I/O. 11331 */ 11332 retval = entry->execute(ctsio); 11333 11334bailout: 11335 return (retval); 11336} 11337 11338/* 11339 * Since we only implement one target right now, a bus reset simply resets 11340 * our single target. 11341 */ 11342static int 11343ctl_bus_reset(struct ctl_softc *softc, union ctl_io *io) 11344{ 11345 return(ctl_target_reset(softc, io, CTL_UA_BUS_RESET)); 11346} 11347 11348static int 11349ctl_target_reset(struct ctl_softc *softc, union ctl_io *io, 11350 ctl_ua_type ua_type) 11351{ 11352 struct ctl_port *port; 11353 struct ctl_lun *lun; 11354 int retval; 11355 11356 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11357 union ctl_ha_msg msg_info; 11358 11359 msg_info.hdr.nexus = io->io_hdr.nexus; 11360 if (ua_type==CTL_UA_TARG_RESET) 11361 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11362 else 11363 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11364 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11365 msg_info.hdr.original_sc = NULL; 11366 msg_info.hdr.serializing_sc = NULL; 11367 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11368 sizeof(msg_info.task), M_WAITOK); 11369 } 11370 retval = 0; 11371 11372 mtx_lock(&softc->ctl_lock); 11373 port = softc->ctl_ports[io->io_hdr.nexus.targ_port]; 11374 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11375 if (port != NULL && 11376 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 11377 continue; 11378 retval += ctl_do_lun_reset(lun, io, ua_type); 11379 } 11380 mtx_unlock(&softc->ctl_lock); 11381 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11382 return (retval); 11383} 11384 11385/* 11386 * The LUN should always be set. The I/O is optional, and is used to 11387 * distinguish between I/Os sent by this initiator, and by other 11388 * initiators. We set unit attention for initiators other than this one. 11389 * SAM-3 is vague on this point. It does say that a unit attention should 11390 * be established for other initiators when a LUN is reset (see section 11391 * 5.7.3), but it doesn't specifically say that the unit attention should 11392 * be established for this particular initiator when a LUN is reset. Here 11393 * is the relevant text, from SAM-3 rev 8: 11394 * 11395 * 5.7.2 When a SCSI initiator port aborts its own tasks 11396 * 11397 * When a SCSI initiator port causes its own task(s) to be aborted, no 11398 * notification that the task(s) have been aborted shall be returned to 11399 * the SCSI initiator port other than the completion response for the 11400 * command or task management function action that caused the task(s) to 11401 * be aborted and notification(s) associated with related effects of the 11402 * action (e.g., a reset unit attention condition). 11403 * 11404 * XXX KDM for now, we're setting unit attention for all initiators. 11405 */ 11406static int 11407ctl_do_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11408{ 11409 union ctl_io *xio; 11410#if 0 11411 uint32_t initidx; 11412#endif 11413#ifdef CTL_WITH_CA 11414 int i; 11415#endif 11416 11417 mtx_lock(&lun->lun_lock); 11418 /* 11419 * Run through the OOA queue and abort each I/O. 11420 */ 11421 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11422 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11423 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11424 } 11425 11426 /* 11427 * This version sets unit attention for every 11428 */ 11429#if 0 11430 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11431 ctl_est_ua_all(lun, initidx, ua_type); 11432#else 11433 ctl_est_ua_all(lun, -1, ua_type); 11434#endif 11435 11436 /* 11437 * A reset (any kind, really) clears reservations established with 11438 * RESERVE/RELEASE. It does not clear reservations established 11439 * with PERSISTENT RESERVE OUT, but we don't support that at the 11440 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11441 * reservations made with the RESERVE/RELEASE commands, because 11442 * those commands are obsolete in SPC-3. 11443 */ 11444 lun->flags &= ~CTL_LUN_RESERVED; 11445 11446#ifdef CTL_WITH_CA 11447 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11448 ctl_clear_mask(lun->have_ca, i); 11449#endif 11450 mtx_unlock(&lun->lun_lock); 11451 11452 return (0); 11453} 11454 11455static int 11456ctl_lun_reset(struct ctl_softc *softc, union ctl_io *io) 11457{ 11458 struct ctl_lun *lun; 11459 uint32_t targ_lun; 11460 int retval; 11461 11462 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11463 mtx_lock(&softc->ctl_lock); 11464 if ((targ_lun >= CTL_MAX_LUNS) || 11465 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11466 mtx_unlock(&softc->ctl_lock); 11467 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11468 return (1); 11469 } 11470 retval = ctl_do_lun_reset(lun, io, CTL_UA_LUN_RESET); 11471 mtx_unlock(&softc->ctl_lock); 11472 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11473 11474 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0) { 11475 union ctl_ha_msg msg_info; 11476 11477 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11478 msg_info.hdr.nexus = io->io_hdr.nexus; 11479 msg_info.task.task_action = CTL_TASK_LUN_RESET; 11480 msg_info.hdr.original_sc = NULL; 11481 msg_info.hdr.serializing_sc = NULL; 11482 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11483 sizeof(msg_info.task), M_WAITOK); 11484 } 11485 return (retval); 11486} 11487 11488static void 11489ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11490 int other_sc) 11491{ 11492 union ctl_io *xio; 11493 11494 mtx_assert(&lun->lun_lock, MA_OWNED); 11495 11496 /* 11497 * Run through the OOA queue and attempt to find the given I/O. 11498 * The target port, initiator ID, tag type and tag number have to 11499 * match the values that we got from the initiator. If we have an 11500 * untagged command to abort, simply abort the first untagged command 11501 * we come to. We only allow one untagged command at a time of course. 11502 */ 11503 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11504 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11505 11506 if ((targ_port == UINT32_MAX || 11507 targ_port == xio->io_hdr.nexus.targ_port) && 11508 (init_id == UINT32_MAX || 11509 init_id == xio->io_hdr.nexus.initid)) { 11510 if (targ_port != xio->io_hdr.nexus.targ_port || 11511 init_id != xio->io_hdr.nexus.initid) 11512 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 11513 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11514 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11515 union ctl_ha_msg msg_info; 11516 11517 msg_info.hdr.nexus = xio->io_hdr.nexus; 11518 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 11519 msg_info.task.tag_num = xio->scsiio.tag_num; 11520 msg_info.task.tag_type = xio->scsiio.tag_type; 11521 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11522 msg_info.hdr.original_sc = NULL; 11523 msg_info.hdr.serializing_sc = NULL; 11524 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11525 sizeof(msg_info.task), M_NOWAIT); 11526 } 11527 } 11528 } 11529} 11530 11531static int 11532ctl_abort_task_set(union ctl_io *io) 11533{ 11534 struct ctl_softc *softc = control_softc; 11535 struct ctl_lun *lun; 11536 uint32_t targ_lun; 11537 11538 /* 11539 * Look up the LUN. 11540 */ 11541 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11542 mtx_lock(&softc->ctl_lock); 11543 if ((targ_lun >= CTL_MAX_LUNS) || 11544 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11545 mtx_unlock(&softc->ctl_lock); 11546 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11547 return (1); 11548 } 11549 11550 mtx_lock(&lun->lun_lock); 11551 mtx_unlock(&softc->ctl_lock); 11552 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 11553 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11554 io->io_hdr.nexus.initid, 11555 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11556 } else { /* CTL_TASK_CLEAR_TASK_SET */ 11557 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 11558 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11559 } 11560 mtx_unlock(&lun->lun_lock); 11561 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11562 return (0); 11563} 11564 11565static int 11566ctl_i_t_nexus_reset(union ctl_io *io) 11567{ 11568 struct ctl_softc *softc = control_softc; 11569 struct ctl_lun *lun; 11570 uint32_t initidx; 11571 11572 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11573 union ctl_ha_msg msg_info; 11574 11575 msg_info.hdr.nexus = io->io_hdr.nexus; 11576 msg_info.task.task_action = CTL_TASK_I_T_NEXUS_RESET; 11577 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11578 msg_info.hdr.original_sc = NULL; 11579 msg_info.hdr.serializing_sc = NULL; 11580 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11581 sizeof(msg_info.task), M_WAITOK); 11582 } 11583 11584 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11585 mtx_lock(&softc->ctl_lock); 11586 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11587 mtx_lock(&lun->lun_lock); 11588 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11589 io->io_hdr.nexus.initid, 1); 11590#ifdef CTL_WITH_CA 11591 ctl_clear_mask(lun->have_ca, initidx); 11592#endif 11593 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == initidx)) 11594 lun->flags &= ~CTL_LUN_RESERVED; 11595 ctl_est_ua(lun, initidx, CTL_UA_I_T_NEXUS_LOSS); 11596 mtx_unlock(&lun->lun_lock); 11597 } 11598 mtx_unlock(&softc->ctl_lock); 11599 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11600 return (0); 11601} 11602 11603static int 11604ctl_abort_task(union ctl_io *io) 11605{ 11606 union ctl_io *xio; 11607 struct ctl_lun *lun; 11608 struct ctl_softc *softc; 11609#if 0 11610 struct sbuf sb; 11611 char printbuf[128]; 11612#endif 11613 int found; 11614 uint32_t targ_lun; 11615 11616 softc = control_softc; 11617 found = 0; 11618 11619 /* 11620 * Look up the LUN. 11621 */ 11622 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11623 mtx_lock(&softc->ctl_lock); 11624 if ((targ_lun >= CTL_MAX_LUNS) || 11625 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11626 mtx_unlock(&softc->ctl_lock); 11627 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11628 return (1); 11629 } 11630 11631#if 0 11632 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 11633 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 11634#endif 11635 11636 mtx_lock(&lun->lun_lock); 11637 mtx_unlock(&softc->ctl_lock); 11638 /* 11639 * Run through the OOA queue and attempt to find the given I/O. 11640 * The target port, initiator ID, tag type and tag number have to 11641 * match the values that we got from the initiator. If we have an 11642 * untagged command to abort, simply abort the first untagged command 11643 * we come to. We only allow one untagged command at a time of course. 11644 */ 11645 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11646 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11647#if 0 11648 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 11649 11650 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 11651 lun->lun, xio->scsiio.tag_num, 11652 xio->scsiio.tag_type, 11653 (xio->io_hdr.blocked_links.tqe_prev 11654 == NULL) ? "" : " BLOCKED", 11655 (xio->io_hdr.flags & 11656 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 11657 (xio->io_hdr.flags & 11658 CTL_FLAG_ABORT) ? " ABORT" : "", 11659 (xio->io_hdr.flags & 11660 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 11661 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 11662 sbuf_finish(&sb); 11663 printf("%s\n", sbuf_data(&sb)); 11664#endif 11665 11666 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 11667 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 11668 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 11669 continue; 11670 11671 /* 11672 * If the abort says that the task is untagged, the 11673 * task in the queue must be untagged. Otherwise, 11674 * we just check to see whether the tag numbers 11675 * match. This is because the QLogic firmware 11676 * doesn't pass back the tag type in an abort 11677 * request. 11678 */ 11679#if 0 11680 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 11681 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 11682 || (xio->scsiio.tag_num == io->taskio.tag_num)) 11683#endif 11684 /* 11685 * XXX KDM we've got problems with FC, because it 11686 * doesn't send down a tag type with aborts. So we 11687 * can only really go by the tag number... 11688 * This may cause problems with parallel SCSI. 11689 * Need to figure that out!! 11690 */ 11691 if (xio->scsiio.tag_num == io->taskio.tag_num) { 11692 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11693 found = 1; 11694 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0 && 11695 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11696 union ctl_ha_msg msg_info; 11697 11698 msg_info.hdr.nexus = io->io_hdr.nexus; 11699 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 11700 msg_info.task.tag_num = io->taskio.tag_num; 11701 msg_info.task.tag_type = io->taskio.tag_type; 11702 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11703 msg_info.hdr.original_sc = NULL; 11704 msg_info.hdr.serializing_sc = NULL; 11705#if 0 11706 printf("Sent Abort to other side\n"); 11707#endif 11708 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11709 sizeof(msg_info.task), M_NOWAIT); 11710 } 11711#if 0 11712 printf("ctl_abort_task: found I/O to abort\n"); 11713#endif 11714 } 11715 } 11716 mtx_unlock(&lun->lun_lock); 11717 11718 if (found == 0) { 11719 /* 11720 * This isn't really an error. It's entirely possible for 11721 * the abort and command completion to cross on the wire. 11722 * This is more of an informative/diagnostic error. 11723 */ 11724#if 0 11725 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 11726 "%u:%u:%u tag %d type %d\n", 11727 io->io_hdr.nexus.initid, 11728 io->io_hdr.nexus.targ_port, 11729 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 11730 io->taskio.tag_type); 11731#endif 11732 } 11733 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11734 return (0); 11735} 11736 11737static int 11738ctl_query_task(union ctl_io *io, int task_set) 11739{ 11740 union ctl_io *xio; 11741 struct ctl_lun *lun; 11742 struct ctl_softc *softc; 11743 int found = 0; 11744 uint32_t targ_lun; 11745 11746 softc = control_softc; 11747 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11748 mtx_lock(&softc->ctl_lock); 11749 if ((targ_lun >= CTL_MAX_LUNS) || 11750 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11751 mtx_unlock(&softc->ctl_lock); 11752 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11753 return (1); 11754 } 11755 mtx_lock(&lun->lun_lock); 11756 mtx_unlock(&softc->ctl_lock); 11757 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11758 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11759 11760 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 11761 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 11762 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 11763 continue; 11764 11765 if (task_set || xio->scsiio.tag_num == io->taskio.tag_num) { 11766 found = 1; 11767 break; 11768 } 11769 } 11770 mtx_unlock(&lun->lun_lock); 11771 if (found) 11772 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 11773 else 11774 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11775 return (0); 11776} 11777 11778static int 11779ctl_query_async_event(union ctl_io *io) 11780{ 11781 struct ctl_lun *lun; 11782 struct ctl_softc *softc; 11783 ctl_ua_type ua; 11784 uint32_t targ_lun, initidx; 11785 11786 softc = control_softc; 11787 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11788 mtx_lock(&softc->ctl_lock); 11789 if ((targ_lun >= CTL_MAX_LUNS) || 11790 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11791 mtx_unlock(&softc->ctl_lock); 11792 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11793 return (1); 11794 } 11795 mtx_lock(&lun->lun_lock); 11796 mtx_unlock(&softc->ctl_lock); 11797 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11798 ua = ctl_build_qae(lun, initidx, io->taskio.task_resp); 11799 mtx_unlock(&lun->lun_lock); 11800 if (ua != CTL_UA_NONE) 11801 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 11802 else 11803 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11804 return (0); 11805} 11806 11807static void 11808ctl_run_task(union ctl_io *io) 11809{ 11810 struct ctl_softc *softc = control_softc; 11811 int retval = 1; 11812 11813 CTL_DEBUG_PRINT(("ctl_run_task\n")); 11814 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 11815 ("ctl_run_task: Unextected io_type %d\n", io->io_hdr.io_type)); 11816 io->taskio.task_status = CTL_TASK_FUNCTION_NOT_SUPPORTED; 11817 bzero(io->taskio.task_resp, sizeof(io->taskio.task_resp)); 11818 switch (io->taskio.task_action) { 11819 case CTL_TASK_ABORT_TASK: 11820 retval = ctl_abort_task(io); 11821 break; 11822 case CTL_TASK_ABORT_TASK_SET: 11823 case CTL_TASK_CLEAR_TASK_SET: 11824 retval = ctl_abort_task_set(io); 11825 break; 11826 case CTL_TASK_CLEAR_ACA: 11827 break; 11828 case CTL_TASK_I_T_NEXUS_RESET: 11829 retval = ctl_i_t_nexus_reset(io); 11830 break; 11831 case CTL_TASK_LUN_RESET: 11832 retval = ctl_lun_reset(softc, io); 11833 break; 11834 case CTL_TASK_TARGET_RESET: 11835 retval = ctl_target_reset(softc, io, CTL_UA_TARG_RESET); 11836 break; 11837 case CTL_TASK_BUS_RESET: 11838 retval = ctl_bus_reset(softc, io); 11839 break; 11840 case CTL_TASK_PORT_LOGIN: 11841 break; 11842 case CTL_TASK_PORT_LOGOUT: 11843 break; 11844 case CTL_TASK_QUERY_TASK: 11845 retval = ctl_query_task(io, 0); 11846 break; 11847 case CTL_TASK_QUERY_TASK_SET: 11848 retval = ctl_query_task(io, 1); 11849 break; 11850 case CTL_TASK_QUERY_ASYNC_EVENT: 11851 retval = ctl_query_async_event(io); 11852 break; 11853 default: 11854 printf("%s: got unknown task management event %d\n", 11855 __func__, io->taskio.task_action); 11856 break; 11857 } 11858 if (retval == 0) 11859 io->io_hdr.status = CTL_SUCCESS; 11860 else 11861 io->io_hdr.status = CTL_ERROR; 11862 ctl_done(io); 11863} 11864 11865/* 11866 * For HA operation. Handle commands that come in from the other 11867 * controller. 11868 */ 11869static void 11870ctl_handle_isc(union ctl_io *io) 11871{ 11872 int free_io; 11873 struct ctl_lun *lun; 11874 struct ctl_softc *softc; 11875 uint32_t targ_lun; 11876 11877 softc = control_softc; 11878 11879 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11880 lun = softc->ctl_luns[targ_lun]; 11881 11882 switch (io->io_hdr.msg_type) { 11883 case CTL_MSG_SERIALIZE: 11884 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 11885 break; 11886 case CTL_MSG_R2R: { 11887 const struct ctl_cmd_entry *entry; 11888 11889 /* 11890 * This is only used in SER_ONLY mode. 11891 */ 11892 free_io = 0; 11893 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 11894 mtx_lock(&lun->lun_lock); 11895 if (ctl_scsiio_lun_check(lun, 11896 entry, (struct ctl_scsiio *)io) != 0) { 11897 mtx_unlock(&lun->lun_lock); 11898 ctl_done(io); 11899 break; 11900 } 11901 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11902 mtx_unlock(&lun->lun_lock); 11903 ctl_enqueue_rtr(io); 11904 break; 11905 } 11906 case CTL_MSG_FINISH_IO: 11907 if (softc->ha_mode == CTL_HA_MODE_XFER) { 11908 free_io = 0; 11909 ctl_done(io); 11910 } else { 11911 free_io = 1; 11912 mtx_lock(&lun->lun_lock); 11913 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 11914 ooa_links); 11915 ctl_check_blocked(lun); 11916 mtx_unlock(&lun->lun_lock); 11917 } 11918 break; 11919 case CTL_MSG_PERS_ACTION: 11920 ctl_hndl_per_res_out_on_other_sc( 11921 (union ctl_ha_msg *)&io->presio.pr_msg); 11922 free_io = 1; 11923 break; 11924 case CTL_MSG_BAD_JUJU: 11925 free_io = 0; 11926 ctl_done(io); 11927 break; 11928 case CTL_MSG_DATAMOVE: 11929 /* Only used in XFER mode */ 11930 free_io = 0; 11931 ctl_datamove_remote(io); 11932 break; 11933 case CTL_MSG_DATAMOVE_DONE: 11934 /* Only used in XFER mode */ 11935 free_io = 0; 11936 io->scsiio.be_move_done(io); 11937 break; 11938 case CTL_MSG_FAILOVER: 11939 mtx_lock(&lun->lun_lock); 11940 ctl_failover_lun(lun); 11941 mtx_unlock(&lun->lun_lock); 11942 free_io = 1; 11943 break; 11944 default: 11945 free_io = 1; 11946 printf("%s: Invalid message type %d\n", 11947 __func__, io->io_hdr.msg_type); 11948 break; 11949 } 11950 if (free_io) 11951 ctl_free_io(io); 11952 11953} 11954 11955 11956/* 11957 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 11958 * there is no match. 11959 */ 11960static ctl_lun_error_pattern 11961ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 11962{ 11963 const struct ctl_cmd_entry *entry; 11964 ctl_lun_error_pattern filtered_pattern, pattern; 11965 11966 pattern = desc->error_pattern; 11967 11968 /* 11969 * XXX KDM we need more data passed into this function to match a 11970 * custom pattern, and we actually need to implement custom pattern 11971 * matching. 11972 */ 11973 if (pattern & CTL_LUN_PAT_CMD) 11974 return (CTL_LUN_PAT_CMD); 11975 11976 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 11977 return (CTL_LUN_PAT_ANY); 11978 11979 entry = ctl_get_cmd_entry(ctsio, NULL); 11980 11981 filtered_pattern = entry->pattern & pattern; 11982 11983 /* 11984 * If the user requested specific flags in the pattern (e.g. 11985 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 11986 * flags. 11987 * 11988 * If the user did not specify any flags, it doesn't matter whether 11989 * or not the command supports the flags. 11990 */ 11991 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 11992 (pattern & ~CTL_LUN_PAT_MASK)) 11993 return (CTL_LUN_PAT_NONE); 11994 11995 /* 11996 * If the user asked for a range check, see if the requested LBA 11997 * range overlaps with this command's LBA range. 11998 */ 11999 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12000 uint64_t lba1; 12001 uint64_t len1; 12002 ctl_action action; 12003 int retval; 12004 12005 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12006 if (retval != 0) 12007 return (CTL_LUN_PAT_NONE); 12008 12009 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12010 desc->lba_range.len, FALSE); 12011 /* 12012 * A "pass" means that the LBA ranges don't overlap, so 12013 * this doesn't match the user's range criteria. 12014 */ 12015 if (action == CTL_ACTION_PASS) 12016 return (CTL_LUN_PAT_NONE); 12017 } 12018 12019 return (filtered_pattern); 12020} 12021 12022static void 12023ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12024{ 12025 struct ctl_error_desc *desc, *desc2; 12026 12027 mtx_assert(&lun->lun_lock, MA_OWNED); 12028 12029 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12030 ctl_lun_error_pattern pattern; 12031 /* 12032 * Check to see whether this particular command matches 12033 * the pattern in the descriptor. 12034 */ 12035 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12036 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12037 continue; 12038 12039 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12040 case CTL_LUN_INJ_ABORTED: 12041 ctl_set_aborted(&io->scsiio); 12042 break; 12043 case CTL_LUN_INJ_MEDIUM_ERR: 12044 ctl_set_medium_error(&io->scsiio); 12045 break; 12046 case CTL_LUN_INJ_UA: 12047 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12048 * OCCURRED */ 12049 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12050 break; 12051 case CTL_LUN_INJ_CUSTOM: 12052 /* 12053 * We're assuming the user knows what he is doing. 12054 * Just copy the sense information without doing 12055 * checks. 12056 */ 12057 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12058 MIN(sizeof(desc->custom_sense), 12059 sizeof(io->scsiio.sense_data))); 12060 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12061 io->scsiio.sense_len = SSD_FULL_SIZE; 12062 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12063 break; 12064 case CTL_LUN_INJ_NONE: 12065 default: 12066 /* 12067 * If this is an error injection type we don't know 12068 * about, clear the continuous flag (if it is set) 12069 * so it will get deleted below. 12070 */ 12071 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12072 break; 12073 } 12074 /* 12075 * By default, each error injection action is a one-shot 12076 */ 12077 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12078 continue; 12079 12080 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12081 12082 free(desc, M_CTL); 12083 } 12084} 12085 12086#ifdef CTL_IO_DELAY 12087static void 12088ctl_datamove_timer_wakeup(void *arg) 12089{ 12090 union ctl_io *io; 12091 12092 io = (union ctl_io *)arg; 12093 12094 ctl_datamove(io); 12095} 12096#endif /* CTL_IO_DELAY */ 12097 12098void 12099ctl_datamove(union ctl_io *io) 12100{ 12101 void (*fe_datamove)(union ctl_io *io); 12102 12103 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12104 12105 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12106 12107#ifdef CTL_TIME_IO 12108 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12109 char str[256]; 12110 char path_str[64]; 12111 struct sbuf sb; 12112 12113 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12114 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12115 12116 sbuf_cat(&sb, path_str); 12117 switch (io->io_hdr.io_type) { 12118 case CTL_IO_SCSI: 12119 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12120 sbuf_printf(&sb, "\n"); 12121 sbuf_cat(&sb, path_str); 12122 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12123 io->scsiio.tag_num, io->scsiio.tag_type); 12124 break; 12125 case CTL_IO_TASK: 12126 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12127 "Tag Type: %d\n", io->taskio.task_action, 12128 io->taskio.tag_num, io->taskio.tag_type); 12129 break; 12130 default: 12131 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12132 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12133 break; 12134 } 12135 sbuf_cat(&sb, path_str); 12136 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12137 (intmax_t)time_uptime - io->io_hdr.start_time); 12138 sbuf_finish(&sb); 12139 printf("%s", sbuf_data(&sb)); 12140 } 12141#endif /* CTL_TIME_IO */ 12142 12143#ifdef CTL_IO_DELAY 12144 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12145 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12146 } else { 12147 struct ctl_lun *lun; 12148 12149 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12150 if ((lun != NULL) 12151 && (lun->delay_info.datamove_delay > 0)) { 12152 12153 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 12154 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12155 callout_reset(&io->io_hdr.delay_callout, 12156 lun->delay_info.datamove_delay * hz, 12157 ctl_datamove_timer_wakeup, io); 12158 if (lun->delay_info.datamove_type == 12159 CTL_DELAY_TYPE_ONESHOT) 12160 lun->delay_info.datamove_delay = 0; 12161 return; 12162 } 12163 } 12164#endif 12165 12166 /* 12167 * This command has been aborted. Set the port status, so we fail 12168 * the data move. 12169 */ 12170 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12171 printf("ctl_datamove: tag 0x%04x on (%u:%u:%u) aborted\n", 12172 io->scsiio.tag_num, io->io_hdr.nexus.initid, 12173 io->io_hdr.nexus.targ_port, 12174 io->io_hdr.nexus.targ_lun); 12175 io->io_hdr.port_status = 31337; 12176 /* 12177 * Note that the backend, in this case, will get the 12178 * callback in its context. In other cases it may get 12179 * called in the frontend's interrupt thread context. 12180 */ 12181 io->scsiio.be_move_done(io); 12182 return; 12183 } 12184 12185 /* Don't confuse frontend with zero length data move. */ 12186 if (io->scsiio.kern_data_len == 0) { 12187 io->scsiio.be_move_done(io); 12188 return; 12189 } 12190 12191 /* 12192 * If we're in XFER mode and this I/O is from the other shelf 12193 * controller, we need to send the DMA to the other side to 12194 * actually transfer the data to/from the host. In serialize only 12195 * mode the transfer happens below CTL and ctl_datamove() is only 12196 * called on the machine that originally received the I/O. 12197 */ 12198 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12199 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12200 union ctl_ha_msg msg; 12201 uint32_t sg_entries_sent; 12202 int do_sg_copy; 12203 int i; 12204 12205 memset(&msg, 0, sizeof(msg)); 12206 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12207 msg.hdr.original_sc = io->io_hdr.original_sc; 12208 msg.hdr.serializing_sc = io; 12209 msg.hdr.nexus = io->io_hdr.nexus; 12210 msg.dt.flags = io->io_hdr.flags; 12211 /* 12212 * We convert everything into a S/G list here. We can't 12213 * pass by reference, only by value between controllers. 12214 * So we can't pass a pointer to the S/G list, only as many 12215 * S/G entries as we can fit in here. If it's possible for 12216 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12217 * then we need to break this up into multiple transfers. 12218 */ 12219 if (io->scsiio.kern_sg_entries == 0) { 12220 msg.dt.kern_sg_entries = 1; 12221#if 0 12222 /* 12223 * Convert to a physical address if this is a 12224 * virtual address. 12225 */ 12226 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12227 msg.dt.sg_list[0].addr = 12228 io->scsiio.kern_data_ptr; 12229 } else { 12230 /* 12231 * XXX KDM use busdma here! 12232 */ 12233 msg.dt.sg_list[0].addr = (void *) 12234 vtophys(io->scsiio.kern_data_ptr); 12235 } 12236#else 12237 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 12238 ("HA does not support BUS_ADDR")); 12239 msg.dt.sg_list[0].addr = io->scsiio.kern_data_ptr; 12240#endif 12241 12242 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12243 do_sg_copy = 0; 12244 } else { 12245 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12246 do_sg_copy = 1; 12247 } 12248 12249 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12250 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12251 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12252 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12253 msg.dt.sg_sequence = 0; 12254 12255 /* 12256 * Loop until we've sent all of the S/G entries. On the 12257 * other end, we'll recompose these S/G entries into one 12258 * contiguous list before passing it to the 12259 */ 12260 for (sg_entries_sent = 0; sg_entries_sent < 12261 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12262 msg.dt.cur_sg_entries = MIN((sizeof(msg.dt.sg_list)/ 12263 sizeof(msg.dt.sg_list[0])), 12264 msg.dt.kern_sg_entries - sg_entries_sent); 12265 12266 if (do_sg_copy != 0) { 12267 struct ctl_sg_entry *sgl; 12268 int j; 12269 12270 sgl = (struct ctl_sg_entry *) 12271 io->scsiio.kern_data_ptr; 12272 /* 12273 * If this is in cached memory, flush the cache 12274 * before we send the DMA request to the other 12275 * controller. We want to do this in either 12276 * the * read or the write case. The read 12277 * case is straightforward. In the write 12278 * case, we want to make sure nothing is 12279 * in the local cache that could overwrite 12280 * the DMAed data. 12281 */ 12282 12283 for (i = sg_entries_sent, j = 0; 12284 i < msg.dt.cur_sg_entries; i++, j++) { 12285#if 0 12286 if ((io->io_hdr.flags & 12287 CTL_FLAG_BUS_ADDR) == 0) { 12288 /* 12289 * XXX KDM use busdma. 12290 */ 12291 msg.dt.sg_list[j].addr =(void *) 12292 vtophys(sgl[i].addr); 12293 } else { 12294 msg.dt.sg_list[j].addr = 12295 sgl[i].addr; 12296 } 12297#else 12298 KASSERT((io->io_hdr.flags & 12299 CTL_FLAG_BUS_ADDR) == 0, 12300 ("HA does not support BUS_ADDR")); 12301 msg.dt.sg_list[j].addr = sgl[i].addr; 12302#endif 12303 msg.dt.sg_list[j].len = sgl[i].len; 12304 } 12305 } 12306 12307 sg_entries_sent += msg.dt.cur_sg_entries; 12308 if (sg_entries_sent >= msg.dt.kern_sg_entries) 12309 msg.dt.sg_last = 1; 12310 else 12311 msg.dt.sg_last = 0; 12312 12313 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12314 sizeof(msg.dt) - sizeof(msg.dt.sg_list) + 12315 sizeof(struct ctl_sg_entry)*msg.dt.cur_sg_entries, 12316 M_WAITOK) > CTL_HA_STATUS_SUCCESS) { 12317 io->io_hdr.port_status = 31341; 12318 io->scsiio.be_move_done(io); 12319 return; 12320 } 12321 12322 msg.dt.sent_sg_entries = sg_entries_sent; 12323 } 12324 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12325 } else { 12326 12327 /* 12328 * Lookup the fe_datamove() function for this particular 12329 * front end. 12330 */ 12331 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12332 12333 fe_datamove(io); 12334 } 12335} 12336 12337static void 12338ctl_send_datamove_done(union ctl_io *io, int have_lock) 12339{ 12340 union ctl_ha_msg msg; 12341 12342 memset(&msg, 0, sizeof(msg)); 12343 12344 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12345 msg.hdr.original_sc = io; 12346 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12347 msg.hdr.nexus = io->io_hdr.nexus; 12348 msg.hdr.status = io->io_hdr.status; 12349 msg.scsi.tag_num = io->scsiio.tag_num; 12350 msg.scsi.tag_type = io->scsiio.tag_type; 12351 msg.scsi.scsi_status = io->scsiio.scsi_status; 12352 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12353 io->scsiio.sense_len); 12354 msg.scsi.sense_len = io->scsiio.sense_len; 12355 msg.scsi.sense_residual = io->scsiio.sense_residual; 12356 msg.scsi.fetd_status = io->io_hdr.port_status; 12357 msg.scsi.residual = io->scsiio.residual; 12358 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12359 12360 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12361 ctl_failover_io(io, /*have_lock*/ have_lock); 12362 return; 12363 } 12364 12365 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12366 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 12367 msg.scsi.sense_len, M_WAITOK); 12368} 12369 12370/* 12371 * The DMA to the remote side is done, now we need to tell the other side 12372 * we're done so it can continue with its data movement. 12373 */ 12374static void 12375ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12376{ 12377 union ctl_io *io; 12378 int i; 12379 12380 io = rq->context; 12381 12382 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12383 printf("%s: ISC DMA write failed with error %d", __func__, 12384 rq->ret); 12385 ctl_set_internal_failure(&io->scsiio, 12386 /*sks_valid*/ 1, 12387 /*retry_count*/ rq->ret); 12388 } 12389 12390 ctl_dt_req_free(rq); 12391 12392 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12393 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12394 free(io->io_hdr.remote_sglist, M_CTL); 12395 io->io_hdr.remote_sglist = NULL; 12396 io->io_hdr.local_sglist = NULL; 12397 12398 /* 12399 * The data is in local and remote memory, so now we need to send 12400 * status (good or back) back to the other side. 12401 */ 12402 ctl_send_datamove_done(io, /*have_lock*/ 0); 12403} 12404 12405/* 12406 * We've moved the data from the host/controller into local memory. Now we 12407 * need to push it over to the remote controller's memory. 12408 */ 12409static int 12410ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12411{ 12412 int retval; 12413 12414 retval = 0; 12415 12416 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12417 ctl_datamove_remote_write_cb); 12418 12419 return (retval); 12420} 12421 12422static void 12423ctl_datamove_remote_write(union ctl_io *io) 12424{ 12425 int retval; 12426 void (*fe_datamove)(union ctl_io *io); 12427 12428 /* 12429 * - Get the data from the host/HBA into local memory. 12430 * - DMA memory from the local controller to the remote controller. 12431 * - Send status back to the remote controller. 12432 */ 12433 12434 retval = ctl_datamove_remote_sgl_setup(io); 12435 if (retval != 0) 12436 return; 12437 12438 /* Switch the pointer over so the FETD knows what to do */ 12439 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12440 12441 /* 12442 * Use a custom move done callback, since we need to send completion 12443 * back to the other controller, not to the backend on this side. 12444 */ 12445 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12446 12447 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12448 12449 fe_datamove(io); 12450 12451 return; 12452 12453} 12454 12455static int 12456ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12457{ 12458#if 0 12459 char str[256]; 12460 char path_str[64]; 12461 struct sbuf sb; 12462#endif 12463 int i; 12464 12465 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12466 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12467 free(io->io_hdr.remote_sglist, M_CTL); 12468 io->io_hdr.remote_sglist = NULL; 12469 io->io_hdr.local_sglist = NULL; 12470 12471#if 0 12472 scsi_path_string(io, path_str, sizeof(path_str)); 12473 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12474 sbuf_cat(&sb, path_str); 12475 scsi_command_string(&io->scsiio, NULL, &sb); 12476 sbuf_printf(&sb, "\n"); 12477 sbuf_cat(&sb, path_str); 12478 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12479 io->scsiio.tag_num, io->scsiio.tag_type); 12480 sbuf_cat(&sb, path_str); 12481 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12482 io->io_hdr.flags, io->io_hdr.status); 12483 sbuf_finish(&sb); 12484 printk("%s", sbuf_data(&sb)); 12485#endif 12486 12487 12488 /* 12489 * The read is done, now we need to send status (good or bad) back 12490 * to the other side. 12491 */ 12492 ctl_send_datamove_done(io, /*have_lock*/ 0); 12493 12494 return (0); 12495} 12496 12497static void 12498ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12499{ 12500 union ctl_io *io; 12501 void (*fe_datamove)(union ctl_io *io); 12502 12503 io = rq->context; 12504 12505 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12506 printf("%s: ISC DMA read failed with error %d\n", __func__, 12507 rq->ret); 12508 ctl_set_internal_failure(&io->scsiio, 12509 /*sks_valid*/ 1, 12510 /*retry_count*/ rq->ret); 12511 } 12512 12513 ctl_dt_req_free(rq); 12514 12515 /* Switch the pointer over so the FETD knows what to do */ 12516 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12517 12518 /* 12519 * Use a custom move done callback, since we need to send completion 12520 * back to the other controller, not to the backend on this side. 12521 */ 12522 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12523 12524 /* XXX KDM add checks like the ones in ctl_datamove? */ 12525 12526 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12527 12528 fe_datamove(io); 12529} 12530 12531static int 12532ctl_datamove_remote_sgl_setup(union ctl_io *io) 12533{ 12534 struct ctl_sg_entry *local_sglist, *remote_sglist; 12535 struct ctl_softc *softc; 12536 uint32_t len_to_go; 12537 int retval; 12538 int i; 12539 12540 retval = 0; 12541 softc = control_softc; 12542 local_sglist = io->io_hdr.local_sglist; 12543 remote_sglist = io->io_hdr.remote_sglist; 12544 len_to_go = io->scsiio.kern_data_len; 12545 12546 /* 12547 * The difficult thing here is that the size of the various 12548 * S/G segments may be different than the size from the 12549 * remote controller. That'll make it harder when DMAing 12550 * the data back to the other side. 12551 */ 12552 for (i = 0; len_to_go > 0; i++) { 12553 local_sglist[i].len = MIN(len_to_go, CTL_HA_DATAMOVE_SEGMENT); 12554 local_sglist[i].addr = 12555 malloc(local_sglist[i].len, M_CTL, M_WAITOK); 12556 12557 len_to_go -= local_sglist[i].len; 12558 } 12559 /* 12560 * Reset the number of S/G entries accordingly. The original 12561 * number of S/G entries is available in rem_sg_entries. 12562 */ 12563 io->scsiio.kern_sg_entries = i; 12564 12565#if 0 12566 printf("%s: kern_sg_entries = %d\n", __func__, 12567 io->scsiio.kern_sg_entries); 12568 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12569 printf("%s: sg[%d] = %p, %d\n", __func__, i, 12570 local_sglist[i].addr, local_sglist[i].len); 12571#endif 12572 12573 return (retval); 12574} 12575 12576static int 12577ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 12578 ctl_ha_dt_cb callback) 12579{ 12580 struct ctl_ha_dt_req *rq; 12581 struct ctl_sg_entry *remote_sglist, *local_sglist; 12582 uint32_t local_used, remote_used, total_used; 12583 int i, j, isc_ret; 12584 12585 rq = ctl_dt_req_alloc(); 12586 12587 /* 12588 * If we failed to allocate the request, and if the DMA didn't fail 12589 * anyway, set busy status. This is just a resource allocation 12590 * failure. 12591 */ 12592 if ((rq == NULL) 12593 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)) 12594 ctl_set_busy(&io->scsiio); 12595 12596 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 12597 12598 if (rq != NULL) 12599 ctl_dt_req_free(rq); 12600 12601 /* 12602 * The data move failed. We need to return status back 12603 * to the other controller. No point in trying to DMA 12604 * data to the remote controller. 12605 */ 12606 12607 ctl_send_datamove_done(io, /*have_lock*/ 0); 12608 12609 return (1); 12610 } 12611 12612 local_sglist = io->io_hdr.local_sglist; 12613 remote_sglist = io->io_hdr.remote_sglist; 12614 local_used = 0; 12615 remote_used = 0; 12616 total_used = 0; 12617 12618 /* 12619 * Pull/push the data over the wire from/to the other controller. 12620 * This takes into account the possibility that the local and 12621 * remote sglists may not be identical in terms of the size of 12622 * the elements and the number of elements. 12623 * 12624 * One fundamental assumption here is that the length allocated for 12625 * both the local and remote sglists is identical. Otherwise, we've 12626 * essentially got a coding error of some sort. 12627 */ 12628 isc_ret = CTL_HA_STATUS_SUCCESS; 12629 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 12630 uint32_t cur_len; 12631 uint8_t *tmp_ptr; 12632 12633 rq->command = command; 12634 rq->context = io; 12635 12636 /* 12637 * Both pointers should be aligned. But it is possible 12638 * that the allocation length is not. They should both 12639 * also have enough slack left over at the end, though, 12640 * to round up to the next 8 byte boundary. 12641 */ 12642 cur_len = MIN(local_sglist[i].len - local_used, 12643 remote_sglist[j].len - remote_used); 12644 rq->size = cur_len; 12645 12646 tmp_ptr = (uint8_t *)local_sglist[i].addr; 12647 tmp_ptr += local_used; 12648 12649#if 0 12650 /* Use physical addresses when talking to ISC hardware */ 12651 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 12652 /* XXX KDM use busdma */ 12653 rq->local = vtophys(tmp_ptr); 12654 } else 12655 rq->local = tmp_ptr; 12656#else 12657 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 12658 ("HA does not support BUS_ADDR")); 12659 rq->local = tmp_ptr; 12660#endif 12661 12662 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 12663 tmp_ptr += remote_used; 12664 rq->remote = tmp_ptr; 12665 12666 rq->callback = NULL; 12667 12668 local_used += cur_len; 12669 if (local_used >= local_sglist[i].len) { 12670 i++; 12671 local_used = 0; 12672 } 12673 12674 remote_used += cur_len; 12675 if (remote_used >= remote_sglist[j].len) { 12676 j++; 12677 remote_used = 0; 12678 } 12679 total_used += cur_len; 12680 12681 if (total_used >= io->scsiio.kern_data_len) 12682 rq->callback = callback; 12683 12684#if 0 12685 printf("%s: %s: local %#x remote %#x size %d\n", __func__, 12686 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 12687 rq->local, rq->remote, rq->size); 12688#endif 12689 12690 isc_ret = ctl_dt_single(rq); 12691 if (isc_ret > CTL_HA_STATUS_SUCCESS) 12692 break; 12693 } 12694 if (isc_ret != CTL_HA_STATUS_WAIT) { 12695 rq->ret = isc_ret; 12696 callback(rq); 12697 } 12698 12699 return (0); 12700} 12701 12702static void 12703ctl_datamove_remote_read(union ctl_io *io) 12704{ 12705 int retval; 12706 int i; 12707 12708 /* 12709 * This will send an error to the other controller in the case of a 12710 * failure. 12711 */ 12712 retval = ctl_datamove_remote_sgl_setup(io); 12713 if (retval != 0) 12714 return; 12715 12716 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 12717 ctl_datamove_remote_read_cb); 12718 if (retval != 0) { 12719 /* 12720 * Make sure we free memory if there was an error.. The 12721 * ctl_datamove_remote_xfer() function will send the 12722 * datamove done message, or call the callback with an 12723 * error if there is a problem. 12724 */ 12725 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12726 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12727 free(io->io_hdr.remote_sglist, M_CTL); 12728 io->io_hdr.remote_sglist = NULL; 12729 io->io_hdr.local_sglist = NULL; 12730 } 12731 12732 return; 12733} 12734 12735/* 12736 * Process a datamove request from the other controller. This is used for 12737 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 12738 * first. Once that is complete, the data gets DMAed into the remote 12739 * controller's memory. For reads, we DMA from the remote controller's 12740 * memory into our memory first, and then move it out to the FETD. 12741 */ 12742static void 12743ctl_datamove_remote(union ctl_io *io) 12744{ 12745 12746 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12747 12748 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12749 ctl_failover_io(io, /*have_lock*/ 0); 12750 return; 12751 } 12752 12753 /* 12754 * Note that we look for an aborted I/O here, but don't do some of 12755 * the other checks that ctl_datamove() normally does. 12756 * We don't need to run the datamove delay code, since that should 12757 * have been done if need be on the other controller. 12758 */ 12759 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12760 printf("%s: tag 0x%04x on (%u:%u:%u) aborted\n", __func__, 12761 io->scsiio.tag_num, io->io_hdr.nexus.initid, 12762 io->io_hdr.nexus.targ_port, 12763 io->io_hdr.nexus.targ_lun); 12764 io->io_hdr.port_status = 31338; 12765 ctl_send_datamove_done(io, /*have_lock*/ 0); 12766 return; 12767 } 12768 12769 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) 12770 ctl_datamove_remote_write(io); 12771 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 12772 ctl_datamove_remote_read(io); 12773 else { 12774 io->io_hdr.port_status = 31339; 12775 ctl_send_datamove_done(io, /*have_lock*/ 0); 12776 } 12777} 12778 12779static int 12780ctl_process_done(union ctl_io *io) 12781{ 12782 struct ctl_lun *lun; 12783 struct ctl_softc *softc = control_softc; 12784 void (*fe_done)(union ctl_io *io); 12785 union ctl_ha_msg msg; 12786 uint32_t targ_port = io->io_hdr.nexus.targ_port; 12787 12788 CTL_DEBUG_PRINT(("ctl_process_done\n")); 12789 12790 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0) 12791 fe_done = softc->ctl_ports[targ_port]->fe_done; 12792 else 12793 fe_done = NULL; 12794 12795#ifdef CTL_TIME_IO 12796 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12797 char str[256]; 12798 char path_str[64]; 12799 struct sbuf sb; 12800 12801 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12802 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12803 12804 sbuf_cat(&sb, path_str); 12805 switch (io->io_hdr.io_type) { 12806 case CTL_IO_SCSI: 12807 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12808 sbuf_printf(&sb, "\n"); 12809 sbuf_cat(&sb, path_str); 12810 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12811 io->scsiio.tag_num, io->scsiio.tag_type); 12812 break; 12813 case CTL_IO_TASK: 12814 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12815 "Tag Type: %d\n", io->taskio.task_action, 12816 io->taskio.tag_num, io->taskio.tag_type); 12817 break; 12818 default: 12819 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12820 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12821 break; 12822 } 12823 sbuf_cat(&sb, path_str); 12824 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 12825 (intmax_t)time_uptime - io->io_hdr.start_time); 12826 sbuf_finish(&sb); 12827 printf("%s", sbuf_data(&sb)); 12828 } 12829#endif /* CTL_TIME_IO */ 12830 12831 switch (io->io_hdr.io_type) { 12832 case CTL_IO_SCSI: 12833 break; 12834 case CTL_IO_TASK: 12835 if (ctl_debug & CTL_DEBUG_INFO) 12836 ctl_io_error_print(io, NULL); 12837 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 12838 ctl_free_io(io); 12839 else 12840 fe_done(io); 12841 return (CTL_RETVAL_COMPLETE); 12842 default: 12843 panic("ctl_process_done: invalid io type %d\n", 12844 io->io_hdr.io_type); 12845 break; /* NOTREACHED */ 12846 } 12847 12848 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12849 if (lun == NULL) { 12850 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 12851 io->io_hdr.nexus.targ_mapped_lun)); 12852 goto bailout; 12853 } 12854 12855 mtx_lock(&lun->lun_lock); 12856 12857 /* 12858 * Check to see if we have any errors to inject here. We only 12859 * inject errors for commands that don't already have errors set. 12860 */ 12861 if ((STAILQ_FIRST(&lun->error_list) != NULL) && 12862 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) && 12863 ((io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0)) 12864 ctl_inject_error(lun, io); 12865 12866 /* 12867 * XXX KDM how do we treat commands that aren't completed 12868 * successfully? 12869 * 12870 * XXX KDM should we also track I/O latency? 12871 */ 12872 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 12873 io->io_hdr.io_type == CTL_IO_SCSI) { 12874#ifdef CTL_TIME_IO 12875 struct bintime cur_bt; 12876#endif 12877 int type; 12878 12879 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 12880 CTL_FLAG_DATA_IN) 12881 type = CTL_STATS_READ; 12882 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 12883 CTL_FLAG_DATA_OUT) 12884 type = CTL_STATS_WRITE; 12885 else 12886 type = CTL_STATS_NO_IO; 12887 12888 lun->stats.ports[targ_port].bytes[type] += 12889 io->scsiio.kern_total_len; 12890 lun->stats.ports[targ_port].operations[type]++; 12891#ifdef CTL_TIME_IO 12892 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 12893 &io->io_hdr.dma_bt); 12894 lun->stats.ports[targ_port].num_dmas[type] += 12895 io->io_hdr.num_dmas; 12896 getbintime(&cur_bt); 12897 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 12898 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 12899#endif 12900 } 12901 12902 /* 12903 * Remove this from the OOA queue. 12904 */ 12905 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 12906#ifdef CTL_TIME_IO 12907 if (TAILQ_EMPTY(&lun->ooa_queue)) 12908 lun->last_busy = getsbinuptime(); 12909#endif 12910 12911 /* 12912 * Run through the blocked queue on this LUN and see if anything 12913 * has become unblocked, now that this transaction is done. 12914 */ 12915 ctl_check_blocked(lun); 12916 12917 /* 12918 * If the LUN has been invalidated, free it if there is nothing 12919 * left on its OOA queue. 12920 */ 12921 if ((lun->flags & CTL_LUN_INVALID) 12922 && TAILQ_EMPTY(&lun->ooa_queue)) { 12923 mtx_unlock(&lun->lun_lock); 12924 mtx_lock(&softc->ctl_lock); 12925 ctl_free_lun(lun); 12926 mtx_unlock(&softc->ctl_lock); 12927 } else 12928 mtx_unlock(&lun->lun_lock); 12929 12930bailout: 12931 12932 /* 12933 * If this command has been aborted, make sure we set the status 12934 * properly. The FETD is responsible for freeing the I/O and doing 12935 * whatever it needs to do to clean up its state. 12936 */ 12937 if (io->io_hdr.flags & CTL_FLAG_ABORT) 12938 ctl_set_task_aborted(&io->scsiio); 12939 12940 /* 12941 * If enabled, print command error status. 12942 */ 12943 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS && 12944 (ctl_debug & CTL_DEBUG_INFO) != 0) 12945 ctl_io_error_print(io, NULL); 12946 12947 /* 12948 * Tell the FETD or the other shelf controller we're done with this 12949 * command. Note that only SCSI commands get to this point. Task 12950 * management commands are completed above. 12951 */ 12952 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 12953 (io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC)) { 12954 memset(&msg, 0, sizeof(msg)); 12955 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 12956 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12957 msg.hdr.nexus = io->io_hdr.nexus; 12958 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12959 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data), 12960 M_WAITOK); 12961 } 12962 if ((softc->ha_mode == CTL_HA_MODE_XFER) 12963 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12964 memset(&msg, 0, sizeof(msg)); 12965 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 12966 msg.hdr.original_sc = io->io_hdr.original_sc; 12967 msg.hdr.nexus = io->io_hdr.nexus; 12968 msg.hdr.status = io->io_hdr.status; 12969 msg.scsi.scsi_status = io->scsiio.scsi_status; 12970 msg.scsi.tag_num = io->scsiio.tag_num; 12971 msg.scsi.tag_type = io->scsiio.tag_type; 12972 msg.scsi.sense_len = io->scsiio.sense_len; 12973 msg.scsi.sense_residual = io->scsiio.sense_residual; 12974 msg.scsi.residual = io->scsiio.residual; 12975 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12976 io->scsiio.sense_len); 12977 12978 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12979 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 12980 msg.scsi.sense_len, M_WAITOK); 12981 ctl_free_io(io); 12982 } else 12983 fe_done(io); 12984 12985 return (CTL_RETVAL_COMPLETE); 12986} 12987 12988#ifdef CTL_WITH_CA 12989/* 12990 * Front end should call this if it doesn't do autosense. When the request 12991 * sense comes back in from the initiator, we'll dequeue this and send it. 12992 */ 12993int 12994ctl_queue_sense(union ctl_io *io) 12995{ 12996 struct ctl_lun *lun; 12997 struct ctl_port *port; 12998 struct ctl_softc *softc; 12999 uint32_t initidx, targ_lun; 13000 13001 softc = control_softc; 13002 13003 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13004 13005 /* 13006 * LUN lookup will likely move to the ctl_work_thread() once we 13007 * have our new queueing infrastructure (that doesn't put things on 13008 * a per-LUN queue initially). That is so that we can handle 13009 * things like an INQUIRY to a LUN that we don't have enabled. We 13010 * can't deal with that right now. 13011 */ 13012 mtx_lock(&softc->ctl_lock); 13013 13014 /* 13015 * If we don't have a LUN for this, just toss the sense 13016 * information. 13017 */ 13018 port = ctl_io_port(&ctsio->io_hdr); 13019 targ_lun = ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13020 if ((targ_lun < CTL_MAX_LUNS) 13021 && (softc->ctl_luns[targ_lun] != NULL)) 13022 lun = softc->ctl_luns[targ_lun]; 13023 else 13024 goto bailout; 13025 13026 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13027 13028 mtx_lock(&lun->lun_lock); 13029 /* 13030 * Already have CA set for this LUN...toss the sense information. 13031 */ 13032 if (ctl_is_set(lun->have_ca, initidx)) { 13033 mtx_unlock(&lun->lun_lock); 13034 goto bailout; 13035 } 13036 13037 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13038 MIN(sizeof(lun->pending_sense[initidx]), 13039 sizeof(io->scsiio.sense_data))); 13040 ctl_set_mask(lun->have_ca, initidx); 13041 mtx_unlock(&lun->lun_lock); 13042 13043bailout: 13044 mtx_unlock(&softc->ctl_lock); 13045 13046 ctl_free_io(io); 13047 13048 return (CTL_RETVAL_COMPLETE); 13049} 13050#endif 13051 13052/* 13053 * Primary command inlet from frontend ports. All SCSI and task I/O 13054 * requests must go through this function. 13055 */ 13056int 13057ctl_queue(union ctl_io *io) 13058{ 13059 struct ctl_port *port; 13060 13061 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13062 13063#ifdef CTL_TIME_IO 13064 io->io_hdr.start_time = time_uptime; 13065 getbintime(&io->io_hdr.start_bt); 13066#endif /* CTL_TIME_IO */ 13067 13068 /* Map FE-specific LUN ID into global one. */ 13069 port = ctl_io_port(&io->io_hdr); 13070 io->io_hdr.nexus.targ_mapped_lun = 13071 ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13072 13073 switch (io->io_hdr.io_type) { 13074 case CTL_IO_SCSI: 13075 case CTL_IO_TASK: 13076 if (ctl_debug & CTL_DEBUG_CDB) 13077 ctl_io_print(io); 13078 ctl_enqueue_incoming(io); 13079 break; 13080 default: 13081 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13082 return (EINVAL); 13083 } 13084 13085 return (CTL_RETVAL_COMPLETE); 13086} 13087 13088#ifdef CTL_IO_DELAY 13089static void 13090ctl_done_timer_wakeup(void *arg) 13091{ 13092 union ctl_io *io; 13093 13094 io = (union ctl_io *)arg; 13095 ctl_done(io); 13096} 13097#endif /* CTL_IO_DELAY */ 13098 13099void 13100ctl_done(union ctl_io *io) 13101{ 13102 13103 /* 13104 * Enable this to catch duplicate completion issues. 13105 */ 13106#if 0 13107 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13108 printf("%s: type %d msg %d cdb %x iptl: " 13109 "%u:%u:%u tag 0x%04x " 13110 "flag %#x status %x\n", 13111 __func__, 13112 io->io_hdr.io_type, 13113 io->io_hdr.msg_type, 13114 io->scsiio.cdb[0], 13115 io->io_hdr.nexus.initid, 13116 io->io_hdr.nexus.targ_port, 13117 io->io_hdr.nexus.targ_lun, 13118 (io->io_hdr.io_type == 13119 CTL_IO_TASK) ? 13120 io->taskio.tag_num : 13121 io->scsiio.tag_num, 13122 io->io_hdr.flags, 13123 io->io_hdr.status); 13124 } else 13125 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13126#endif 13127 13128 /* 13129 * This is an internal copy of an I/O, and should not go through 13130 * the normal done processing logic. 13131 */ 13132 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13133 return; 13134 13135#ifdef CTL_IO_DELAY 13136 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13137 struct ctl_lun *lun; 13138 13139 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13140 13141 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13142 } else { 13143 struct ctl_lun *lun; 13144 13145 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13146 13147 if ((lun != NULL) 13148 && (lun->delay_info.done_delay > 0)) { 13149 13150 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 13151 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13152 callout_reset(&io->io_hdr.delay_callout, 13153 lun->delay_info.done_delay * hz, 13154 ctl_done_timer_wakeup, io); 13155 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13156 lun->delay_info.done_delay = 0; 13157 return; 13158 } 13159 } 13160#endif /* CTL_IO_DELAY */ 13161 13162 ctl_enqueue_done(io); 13163} 13164 13165static void 13166ctl_work_thread(void *arg) 13167{ 13168 struct ctl_thread *thr = (struct ctl_thread *)arg; 13169 struct ctl_softc *softc = thr->ctl_softc; 13170 union ctl_io *io; 13171 int retval; 13172 13173 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13174 13175 for (;;) { 13176 retval = 0; 13177 13178 /* 13179 * We handle the queues in this order: 13180 * - ISC 13181 * - done queue (to free up resources, unblock other commands) 13182 * - RtR queue 13183 * - incoming queue 13184 * 13185 * If those queues are empty, we break out of the loop and 13186 * go to sleep. 13187 */ 13188 mtx_lock(&thr->queue_lock); 13189 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13190 if (io != NULL) { 13191 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13192 mtx_unlock(&thr->queue_lock); 13193 ctl_handle_isc(io); 13194 continue; 13195 } 13196 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13197 if (io != NULL) { 13198 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13199 /* clear any blocked commands, call fe_done */ 13200 mtx_unlock(&thr->queue_lock); 13201 retval = ctl_process_done(io); 13202 continue; 13203 } 13204 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13205 if (io != NULL) { 13206 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13207 mtx_unlock(&thr->queue_lock); 13208 if (io->io_hdr.io_type == CTL_IO_TASK) 13209 ctl_run_task(io); 13210 else 13211 ctl_scsiio_precheck(softc, &io->scsiio); 13212 continue; 13213 } 13214 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13215 if (io != NULL) { 13216 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13217 mtx_unlock(&thr->queue_lock); 13218 retval = ctl_scsiio(&io->scsiio); 13219 if (retval != CTL_RETVAL_COMPLETE) 13220 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13221 continue; 13222 } 13223 13224 /* Sleep until we have something to do. */ 13225 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13226 } 13227} 13228 13229static void 13230ctl_lun_thread(void *arg) 13231{ 13232 struct ctl_softc *softc = (struct ctl_softc *)arg; 13233 struct ctl_be_lun *be_lun; 13234 int retval; 13235 13236 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 13237 13238 for (;;) { 13239 retval = 0; 13240 mtx_lock(&softc->ctl_lock); 13241 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 13242 if (be_lun != NULL) { 13243 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 13244 mtx_unlock(&softc->ctl_lock); 13245 ctl_create_lun(be_lun); 13246 continue; 13247 } 13248 13249 /* Sleep until we have something to do. */ 13250 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 13251 PDROP | PRIBIO, "-", 0); 13252 } 13253} 13254 13255static void 13256ctl_thresh_thread(void *arg) 13257{ 13258 struct ctl_softc *softc = (struct ctl_softc *)arg; 13259 struct ctl_lun *lun; 13260 struct ctl_be_lun *be_lun; 13261 struct scsi_da_rw_recovery_page *rwpage; 13262 struct ctl_logical_block_provisioning_page *page; 13263 const char *attr; 13264 union ctl_ha_msg msg; 13265 uint64_t thres, val; 13266 int i, e, set; 13267 13268 CTL_DEBUG_PRINT(("ctl_thresh_thread starting\n")); 13269 13270 for (;;) { 13271 mtx_lock(&softc->ctl_lock); 13272 STAILQ_FOREACH(lun, &softc->lun_list, links) { 13273 be_lun = lun->be_lun; 13274 if ((lun->flags & CTL_LUN_DISABLED) || 13275 (lun->flags & CTL_LUN_OFFLINE) || 13276 lun->backend->lun_attr == NULL) 13277 continue; 13278 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 13279 softc->ha_mode == CTL_HA_MODE_XFER) 13280 continue; 13281 rwpage = &lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT]; 13282 if ((rwpage->byte8 & SMS_RWER_LBPERE) == 0) 13283 continue; 13284 e = 0; 13285 page = &lun->mode_pages.lbp_page[CTL_PAGE_CURRENT]; 13286 for (i = 0; i < CTL_NUM_LBP_THRESH; i++) { 13287 if ((page->descr[i].flags & SLBPPD_ENABLED) == 0) 13288 continue; 13289 thres = scsi_4btoul(page->descr[i].count); 13290 thres <<= CTL_LBP_EXPONENT; 13291 switch (page->descr[i].resource) { 13292 case 0x01: 13293 attr = "blocksavail"; 13294 break; 13295 case 0x02: 13296 attr = "blocksused"; 13297 break; 13298 case 0xf1: 13299 attr = "poolblocksavail"; 13300 break; 13301 case 0xf2: 13302 attr = "poolblocksused"; 13303 break; 13304 default: 13305 continue; 13306 } 13307 mtx_unlock(&softc->ctl_lock); // XXX 13308 val = lun->backend->lun_attr( 13309 lun->be_lun->be_lun, attr); 13310 mtx_lock(&softc->ctl_lock); 13311 if (val == UINT64_MAX) 13312 continue; 13313 if ((page->descr[i].flags & SLBPPD_ARMING_MASK) 13314 == SLBPPD_ARMING_INC) 13315 e |= (val >= thres); 13316 else 13317 e |= (val <= thres); 13318 } 13319 mtx_lock(&lun->lun_lock); 13320 if (e) { 13321 if (lun->lasttpt == 0 || 13322 time_uptime - lun->lasttpt >= CTL_LBP_UA_PERIOD) { 13323 lun->lasttpt = time_uptime; 13324 ctl_est_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13325 set = 1; 13326 } else 13327 set = 0; 13328 } else { 13329 lun->lasttpt = 0; 13330 ctl_clr_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13331 set = -1; 13332 } 13333 mtx_unlock(&lun->lun_lock); 13334 if (set != 0 && 13335 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 13336 /* Send msg to other side. */ 13337 bzero(&msg.ua, sizeof(msg.ua)); 13338 msg.hdr.msg_type = CTL_MSG_UA; 13339 msg.hdr.nexus.initid = -1; 13340 msg.hdr.nexus.targ_port = -1; 13341 msg.hdr.nexus.targ_lun = lun->lun; 13342 msg.hdr.nexus.targ_mapped_lun = lun->lun; 13343 msg.ua.ua_all = 1; 13344 msg.ua.ua_set = (set > 0); 13345 msg.ua.ua_type = CTL_UA_THIN_PROV_THRES; 13346 mtx_unlock(&softc->ctl_lock); // XXX 13347 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13348 sizeof(msg.ua), M_WAITOK); 13349 mtx_lock(&softc->ctl_lock); 13350 } 13351 } 13352 mtx_unlock(&softc->ctl_lock); 13353 pause("-", CTL_LBP_PERIOD * hz); 13354 } 13355} 13356 13357static void 13358ctl_enqueue_incoming(union ctl_io *io) 13359{ 13360 struct ctl_softc *softc = control_softc; 13361 struct ctl_thread *thr; 13362 u_int idx; 13363 13364 idx = (io->io_hdr.nexus.targ_port * 127 + 13365 io->io_hdr.nexus.initid) % worker_threads; 13366 thr = &softc->threads[idx]; 13367 mtx_lock(&thr->queue_lock); 13368 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 13369 mtx_unlock(&thr->queue_lock); 13370 wakeup(thr); 13371} 13372 13373static void 13374ctl_enqueue_rtr(union ctl_io *io) 13375{ 13376 struct ctl_softc *softc = control_softc; 13377 struct ctl_thread *thr; 13378 13379 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13380 mtx_lock(&thr->queue_lock); 13381 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 13382 mtx_unlock(&thr->queue_lock); 13383 wakeup(thr); 13384} 13385 13386static void 13387ctl_enqueue_done(union ctl_io *io) 13388{ 13389 struct ctl_softc *softc = control_softc; 13390 struct ctl_thread *thr; 13391 13392 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13393 mtx_lock(&thr->queue_lock); 13394 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 13395 mtx_unlock(&thr->queue_lock); 13396 wakeup(thr); 13397} 13398 13399static void 13400ctl_enqueue_isc(union ctl_io *io) 13401{ 13402 struct ctl_softc *softc = control_softc; 13403 struct ctl_thread *thr; 13404 13405 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13406 mtx_lock(&thr->queue_lock); 13407 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 13408 mtx_unlock(&thr->queue_lock); 13409 wakeup(thr); 13410} 13411 13412/* 13413 * vim: ts=8 13414 */ 13415