ctl.c revision 287774
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 287774 2015-09-14 08:01:05Z 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 memcpy(&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 520 &msg_info->scsi.lbalen, sizeof(msg_info->scsi.lbalen)); 521 ctl_enqueue_isc((union ctl_io *)ctsio); 522} 523 524static void 525ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 526 union ctl_ha_msg *msg_info) 527{ 528 struct ctl_scsiio *ctsio; 529 530 if (msg_info->hdr.serializing_sc == NULL) { 531 printf("%s: serializing_sc == NULL!\n", __func__); 532 /* XXX KDM now what? */ 533 return; 534 } 535 536 ctsio = &msg_info->hdr.serializing_sc->scsiio; 537 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 538 ctl_enqueue_isc((union ctl_io *)ctsio); 539} 540 541void 542ctl_isc_announce_lun(struct ctl_lun *lun) 543{ 544 struct ctl_softc *softc = lun->ctl_softc; 545 union ctl_ha_msg *msg; 546 struct ctl_ha_msg_lun_pr_key pr_key; 547 int i, k; 548 549 if (softc->ha_link != CTL_HA_LINK_ONLINE) 550 return; 551 mtx_lock(&lun->lun_lock); 552 i = sizeof(msg->lun); 553 if (lun->lun_devid) 554 i += lun->lun_devid->len; 555 i += sizeof(pr_key) * lun->pr_key_count; 556alloc: 557 mtx_unlock(&lun->lun_lock); 558 msg = malloc(i, M_CTL, M_WAITOK); 559 mtx_lock(&lun->lun_lock); 560 k = sizeof(msg->lun); 561 if (lun->lun_devid) 562 k += lun->lun_devid->len; 563 k += sizeof(pr_key) * lun->pr_key_count; 564 if (i < k) { 565 free(msg, M_CTL); 566 i = k; 567 goto alloc; 568 } 569 bzero(&msg->lun, sizeof(msg->lun)); 570 msg->hdr.msg_type = CTL_MSG_LUN_SYNC; 571 msg->hdr.nexus.targ_lun = lun->lun; 572 msg->hdr.nexus.targ_mapped_lun = lun->lun; 573 msg->lun.flags = lun->flags; 574 msg->lun.pr_generation = lun->PRGeneration; 575 msg->lun.pr_res_idx = lun->pr_res_idx; 576 msg->lun.pr_res_type = lun->res_type; 577 msg->lun.pr_key_count = lun->pr_key_count; 578 i = 0; 579 if (lun->lun_devid) { 580 msg->lun.lun_devid_len = lun->lun_devid->len; 581 memcpy(&msg->lun.data[i], lun->lun_devid->data, 582 msg->lun.lun_devid_len); 583 i += msg->lun.lun_devid_len; 584 } 585 for (k = 0; k < CTL_MAX_INITIATORS; k++) { 586 if ((pr_key.pr_key = ctl_get_prkey(lun, k)) == 0) 587 continue; 588 pr_key.pr_iid = k; 589 memcpy(&msg->lun.data[i], &pr_key, sizeof(pr_key)); 590 i += sizeof(pr_key); 591 } 592 mtx_unlock(&lun->lun_lock); 593 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->port, sizeof(msg->port) + i, 594 M_WAITOK); 595 free(msg, M_CTL); 596} 597 598void 599ctl_isc_announce_port(struct ctl_port *port) 600{ 601 struct ctl_softc *softc = control_softc; 602 union ctl_ha_msg *msg; 603 int i; 604 605 if (port->targ_port < softc->port_min || 606 port->targ_port >= softc->port_max || 607 softc->ha_link != CTL_HA_LINK_ONLINE) 608 return; 609 i = sizeof(msg->port) + strlen(port->port_name) + 1; 610 if (port->lun_map) 611 i += sizeof(uint32_t) * CTL_MAX_LUNS; 612 if (port->port_devid) 613 i += port->port_devid->len; 614 if (port->target_devid) 615 i += port->target_devid->len; 616 msg = malloc(i, M_CTL, M_WAITOK); 617 bzero(&msg->port, sizeof(msg->port)); 618 msg->hdr.msg_type = CTL_MSG_PORT_SYNC; 619 msg->hdr.nexus.targ_port = port->targ_port; 620 msg->port.port_type = port->port_type; 621 msg->port.physical_port = port->physical_port; 622 msg->port.virtual_port = port->virtual_port; 623 msg->port.status = port->status; 624 i = 0; 625 msg->port.name_len = sprintf(&msg->port.data[i], 626 "%d:%s", softc->ha_id, port->port_name) + 1; 627 i += msg->port.name_len; 628 if (port->lun_map) { 629 msg->port.lun_map_len = sizeof(uint32_t) * CTL_MAX_LUNS; 630 memcpy(&msg->port.data[i], port->lun_map, 631 msg->port.lun_map_len); 632 i += msg->port.lun_map_len; 633 } 634 if (port->port_devid) { 635 msg->port.port_devid_len = port->port_devid->len; 636 memcpy(&msg->port.data[i], port->port_devid->data, 637 msg->port.port_devid_len); 638 i += msg->port.port_devid_len; 639 } 640 if (port->target_devid) { 641 msg->port.target_devid_len = port->target_devid->len; 642 memcpy(&msg->port.data[i], port->target_devid->data, 643 msg->port.target_devid_len); 644 i += msg->port.target_devid_len; 645 } 646 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->port, sizeof(msg->port) + i, 647 M_WAITOK); 648 free(msg, M_CTL); 649} 650 651static void 652ctl_isc_ha_link_up(struct ctl_softc *softc) 653{ 654 struct ctl_port *port; 655 struct ctl_lun *lun; 656 657 STAILQ_FOREACH(port, &softc->port_list, links) 658 ctl_isc_announce_port(port); 659 STAILQ_FOREACH(lun, &softc->lun_list, links) 660 ctl_isc_announce_lun(lun); 661} 662 663static void 664ctl_isc_ha_link_down(struct ctl_softc *softc) 665{ 666 struct ctl_port *port; 667 struct ctl_lun *lun; 668 union ctl_io *io; 669 670 mtx_lock(&softc->ctl_lock); 671 STAILQ_FOREACH(lun, &softc->lun_list, links) { 672 mtx_lock(&lun->lun_lock); 673 if (lun->flags & CTL_LUN_PEER_SC_PRIMARY) { 674 lun->flags &= ~CTL_LUN_PEER_SC_PRIMARY; 675 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 676 } 677 mtx_unlock(&lun->lun_lock); 678 679 mtx_unlock(&softc->ctl_lock); 680 io = ctl_alloc_io(softc->othersc_pool); 681 mtx_lock(&softc->ctl_lock); 682 ctl_zero_io(io); 683 io->io_hdr.msg_type = CTL_MSG_FAILOVER; 684 io->io_hdr.nexus.targ_mapped_lun = lun->lun; 685 ctl_enqueue_isc(io); 686 } 687 688 STAILQ_FOREACH(port, &softc->port_list, links) { 689 if (port->targ_port >= softc->port_min && 690 port->targ_port < softc->port_max) 691 continue; 692 port->status &= ~CTL_PORT_STATUS_ONLINE; 693 } 694 mtx_unlock(&softc->ctl_lock); 695} 696 697static void 698ctl_isc_ua(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 699{ 700 struct ctl_lun *lun; 701 uint32_t iid = ctl_get_initindex(&msg->hdr.nexus); 702 703 mtx_lock(&softc->ctl_lock); 704 if (msg->hdr.nexus.targ_lun < CTL_MAX_LUNS && 705 (lun = softc->ctl_luns[msg->hdr.nexus.targ_mapped_lun]) != NULL) { 706 mtx_lock(&lun->lun_lock); 707 mtx_unlock(&softc->ctl_lock); 708 if (msg->ua.ua_all) { 709 if (msg->ua.ua_set) 710 ctl_est_ua_all(lun, iid, msg->ua.ua_type); 711 else 712 ctl_clr_ua_all(lun, iid, msg->ua.ua_type); 713 } else { 714 if (msg->ua.ua_set) 715 ctl_est_ua(lun, iid, msg->ua.ua_type); 716 else 717 ctl_clr_ua(lun, iid, msg->ua.ua_type); 718 } 719 mtx_unlock(&lun->lun_lock); 720 } else 721 mtx_unlock(&softc->ctl_lock); 722} 723 724static void 725ctl_isc_lun_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 726{ 727 struct ctl_lun *lun; 728 struct ctl_ha_msg_lun_pr_key pr_key; 729 int i, k; 730 ctl_lun_flags oflags; 731 uint32_t targ_lun; 732 733 targ_lun = msg->hdr.nexus.targ_mapped_lun; 734 mtx_lock(&softc->ctl_lock); 735 if ((targ_lun >= CTL_MAX_LUNS) || 736 ((lun = softc->ctl_luns[targ_lun]) == NULL)) { 737 mtx_unlock(&softc->ctl_lock); 738 return; 739 } 740 mtx_lock(&lun->lun_lock); 741 mtx_unlock(&softc->ctl_lock); 742 if (lun->flags & CTL_LUN_DISABLED) { 743 mtx_unlock(&lun->lun_lock); 744 return; 745 } 746 i = (lun->lun_devid != NULL) ? lun->lun_devid->len : 0; 747 if (msg->lun.lun_devid_len != i || (i > 0 && 748 memcmp(&msg->lun.data[0], lun->lun_devid->data, i) != 0)) { 749 mtx_unlock(&lun->lun_lock); 750 printf("%s: Received conflicting HA LUN %d\n", 751 __func__, msg->hdr.nexus.targ_lun); 752 return; 753 } else { 754 /* Record whether peer is primary. */ 755 oflags = lun->flags; 756 if ((msg->lun.flags & CTL_LUN_PRIMARY_SC) && 757 (msg->lun.flags & CTL_LUN_DISABLED) == 0) 758 lun->flags |= CTL_LUN_PEER_SC_PRIMARY; 759 else 760 lun->flags &= ~CTL_LUN_PEER_SC_PRIMARY; 761 if (oflags != lun->flags) 762 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 763 764 /* If peer is primary and we are not -- use data */ 765 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 766 (lun->flags & CTL_LUN_PEER_SC_PRIMARY)) { 767 lun->PRGeneration = msg->lun.pr_generation; 768 lun->pr_res_idx = msg->lun.pr_res_idx; 769 lun->res_type = msg->lun.pr_res_type; 770 lun->pr_key_count = msg->lun.pr_key_count; 771 for (k = 0; k < CTL_MAX_INITIATORS; k++) 772 ctl_clr_prkey(lun, k); 773 for (k = 0; k < msg->lun.pr_key_count; k++) { 774 memcpy(&pr_key, &msg->lun.data[i], 775 sizeof(pr_key)); 776 ctl_alloc_prkey(lun, pr_key.pr_iid); 777 ctl_set_prkey(lun, pr_key.pr_iid, 778 pr_key.pr_key); 779 i += sizeof(pr_key); 780 } 781 } 782 783 mtx_unlock(&lun->lun_lock); 784 CTL_DEBUG_PRINT(("%s: Known LUN %d, peer is %s\n", 785 __func__, msg->hdr.nexus.targ_lun, 786 (msg->lun.flags & CTL_LUN_PRIMARY_SC) ? 787 "primary" : "secondary")); 788 789 /* If we are primary but peer doesn't know -- notify */ 790 if ((lun->flags & CTL_LUN_PRIMARY_SC) && 791 (msg->lun.flags & CTL_LUN_PEER_SC_PRIMARY) == 0) 792 ctl_isc_announce_lun(lun); 793 } 794} 795 796static void 797ctl_isc_port_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 798{ 799 struct ctl_port *port; 800 struct ctl_lun *lun; 801 int i, new; 802 803 port = softc->ctl_ports[msg->hdr.nexus.targ_port]; 804 if (port == NULL) { 805 CTL_DEBUG_PRINT(("%s: New port %d\n", __func__, 806 msg->hdr.nexus.targ_port)); 807 new = 1; 808 port = malloc(sizeof(*port), M_CTL, M_WAITOK | M_ZERO); 809 port->frontend = &ha_frontend; 810 port->targ_port = msg->hdr.nexus.targ_port; 811 } else if (port->frontend == &ha_frontend) { 812 CTL_DEBUG_PRINT(("%s: Updated port %d\n", __func__, 813 msg->hdr.nexus.targ_port)); 814 new = 0; 815 } else { 816 printf("%s: Received conflicting HA port %d\n", 817 __func__, msg->hdr.nexus.targ_port); 818 return; 819 } 820 port->port_type = msg->port.port_type; 821 port->physical_port = msg->port.physical_port; 822 port->virtual_port = msg->port.virtual_port; 823 port->status = msg->port.status; 824 i = 0; 825 free(port->port_name, M_CTL); 826 port->port_name = strndup(&msg->port.data[i], msg->port.name_len, 827 M_CTL); 828 i += msg->port.name_len; 829 if (msg->port.lun_map_len != 0) { 830 if (port->lun_map == NULL) 831 port->lun_map = malloc(sizeof(uint32_t) * CTL_MAX_LUNS, 832 M_CTL, M_WAITOK); 833 memcpy(port->lun_map, &msg->port.data[i], 834 sizeof(uint32_t) * CTL_MAX_LUNS); 835 i += msg->port.lun_map_len; 836 } else { 837 free(port->lun_map, M_CTL); 838 port->lun_map = NULL; 839 } 840 if (msg->port.port_devid_len != 0) { 841 if (port->port_devid == NULL || 842 port->port_devid->len != msg->port.port_devid_len) { 843 free(port->port_devid, M_CTL); 844 port->port_devid = malloc(sizeof(struct ctl_devid) + 845 msg->port.port_devid_len, M_CTL, M_WAITOK); 846 } 847 memcpy(port->port_devid->data, &msg->port.data[i], 848 msg->port.port_devid_len); 849 port->port_devid->len = msg->port.port_devid_len; 850 i += msg->port.port_devid_len; 851 } else { 852 free(port->port_devid, M_CTL); 853 port->port_devid = NULL; 854 } 855 if (msg->port.target_devid_len != 0) { 856 if (port->target_devid == NULL || 857 port->target_devid->len != msg->port.target_devid_len) { 858 free(port->target_devid, M_CTL); 859 port->target_devid = malloc(sizeof(struct ctl_devid) + 860 msg->port.target_devid_len, M_CTL, M_WAITOK); 861 } 862 memcpy(port->target_devid->data, &msg->port.data[i], 863 msg->port.target_devid_len); 864 port->target_devid->len = msg->port.target_devid_len; 865 i += msg->port.target_devid_len; 866 } else { 867 free(port->port_devid, M_CTL); 868 port->port_devid = NULL; 869 } 870 if (new) { 871 if (ctl_port_register(port) != 0) { 872 printf("%s: ctl_port_register() failed with error\n", 873 __func__); 874 } 875 } 876 mtx_lock(&softc->ctl_lock); 877 STAILQ_FOREACH(lun, &softc->lun_list, links) { 878 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 879 continue; 880 mtx_lock(&lun->lun_lock); 881 ctl_est_ua_all(lun, -1, CTL_UA_INQ_CHANGE); 882 mtx_unlock(&lun->lun_lock); 883 } 884 mtx_unlock(&softc->ctl_lock); 885} 886 887/* 888 * ISC (Inter Shelf Communication) event handler. Events from the HA 889 * subsystem come in here. 890 */ 891static void 892ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 893{ 894 struct ctl_softc *softc; 895 union ctl_io *io; 896 struct ctl_prio *presio; 897 ctl_ha_status isc_status; 898 899 softc = control_softc; 900 CTL_DEBUG_PRINT(("CTL: Isc Msg event %d\n", event)); 901 if (event == CTL_HA_EVT_MSG_RECV) { 902 union ctl_ha_msg *msg, msgbuf; 903 904 if (param > sizeof(msgbuf)) 905 msg = malloc(param, M_CTL, M_WAITOK); 906 else 907 msg = &msgbuf; 908 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, msg, param, 909 M_WAITOK); 910 if (isc_status != CTL_HA_STATUS_SUCCESS) { 911 printf("%s: Error receiving message: %d\n", 912 __func__, isc_status); 913 if (msg != &msgbuf) 914 free(msg, M_CTL); 915 return; 916 } 917 918 CTL_DEBUG_PRINT(("CTL: msg_type %d\n", msg->msg_type)); 919 switch (msg->hdr.msg_type) { 920 case CTL_MSG_SERIALIZE: 921 io = ctl_alloc_io(softc->othersc_pool); 922 ctl_zero_io(io); 923 // populate ctsio from msg 924 io->io_hdr.io_type = CTL_IO_SCSI; 925 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 926 io->io_hdr.original_sc = msg->hdr.original_sc; 927 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 928 CTL_FLAG_IO_ACTIVE; 929 /* 930 * If we're in serialization-only mode, we don't 931 * want to go through full done processing. Thus 932 * the COPY flag. 933 * 934 * XXX KDM add another flag that is more specific. 935 */ 936 if (softc->ha_mode != CTL_HA_MODE_XFER) 937 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 938 io->io_hdr.nexus = msg->hdr.nexus; 939#if 0 940 printf("port %u, iid %u, lun %u\n", 941 io->io_hdr.nexus.targ_port, 942 io->io_hdr.nexus.initid, 943 io->io_hdr.nexus.targ_lun); 944#endif 945 io->scsiio.tag_num = msg->scsi.tag_num; 946 io->scsiio.tag_type = msg->scsi.tag_type; 947#ifdef CTL_TIME_IO 948 io->io_hdr.start_time = time_uptime; 949 getbintime(&io->io_hdr.start_bt); 950#endif /* CTL_TIME_IO */ 951 io->scsiio.cdb_len = msg->scsi.cdb_len; 952 memcpy(io->scsiio.cdb, msg->scsi.cdb, 953 CTL_MAX_CDBLEN); 954 if (softc->ha_mode == CTL_HA_MODE_XFER) { 955 const struct ctl_cmd_entry *entry; 956 957 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 958 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 959 io->io_hdr.flags |= 960 entry->flags & CTL_FLAG_DATA_MASK; 961 } 962 ctl_enqueue_isc(io); 963 break; 964 965 /* Performed on the Originating SC, XFER mode only */ 966 case CTL_MSG_DATAMOVE: { 967 struct ctl_sg_entry *sgl; 968 int i, j; 969 970 io = msg->hdr.original_sc; 971 if (io == NULL) { 972 printf("%s: original_sc == NULL!\n", __func__); 973 /* XXX KDM do something here */ 974 break; 975 } 976 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 977 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 978 /* 979 * Keep track of this, we need to send it back over 980 * when the datamove is complete. 981 */ 982 io->io_hdr.serializing_sc = msg->hdr.serializing_sc; 983 984 if (msg->dt.sg_sequence == 0) { 985 i = msg->dt.kern_sg_entries + 986 io->scsiio.kern_data_len / 987 CTL_HA_DATAMOVE_SEGMENT + 1; 988 sgl = malloc(sizeof(*sgl) * i, M_CTL, 989 M_WAITOK | M_ZERO); 990 io->io_hdr.remote_sglist = sgl; 991 io->io_hdr.local_sglist = 992 &sgl[msg->dt.kern_sg_entries]; 993 994 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 995 996 io->scsiio.kern_sg_entries = 997 msg->dt.kern_sg_entries; 998 io->scsiio.rem_sg_entries = 999 msg->dt.kern_sg_entries; 1000 io->scsiio.kern_data_len = 1001 msg->dt.kern_data_len; 1002 io->scsiio.kern_total_len = 1003 msg->dt.kern_total_len; 1004 io->scsiio.kern_data_resid = 1005 msg->dt.kern_data_resid; 1006 io->scsiio.kern_rel_offset = 1007 msg->dt.kern_rel_offset; 1008 io->io_hdr.flags &= ~CTL_FLAG_BUS_ADDR; 1009 io->io_hdr.flags |= msg->dt.flags & 1010 CTL_FLAG_BUS_ADDR; 1011 } else 1012 sgl = (struct ctl_sg_entry *) 1013 io->scsiio.kern_data_ptr; 1014 1015 for (i = msg->dt.sent_sg_entries, j = 0; 1016 i < (msg->dt.sent_sg_entries + 1017 msg->dt.cur_sg_entries); i++, j++) { 1018 sgl[i].addr = msg->dt.sg_list[j].addr; 1019 sgl[i].len = msg->dt.sg_list[j].len; 1020 1021#if 0 1022 printf("%s: L: %p,%d -> %p,%d j=%d, i=%d\n", 1023 __func__, 1024 msg->dt.sg_list[j].addr, 1025 msg->dt.sg_list[j].len, 1026 sgl[i].addr, sgl[i].len, j, i); 1027#endif 1028 } 1029 1030 /* 1031 * If this is the last piece of the I/O, we've got 1032 * the full S/G list. Queue processing in the thread. 1033 * Otherwise wait for the next piece. 1034 */ 1035 if (msg->dt.sg_last != 0) 1036 ctl_enqueue_isc(io); 1037 break; 1038 } 1039 /* Performed on the Serializing (primary) SC, XFER mode only */ 1040 case CTL_MSG_DATAMOVE_DONE: { 1041 if (msg->hdr.serializing_sc == NULL) { 1042 printf("%s: serializing_sc == NULL!\n", 1043 __func__); 1044 /* XXX KDM now what? */ 1045 break; 1046 } 1047 /* 1048 * We grab the sense information here in case 1049 * there was a failure, so we can return status 1050 * back to the initiator. 1051 */ 1052 io = msg->hdr.serializing_sc; 1053 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 1054 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1055 io->io_hdr.port_status = msg->scsi.fetd_status; 1056 io->scsiio.residual = msg->scsi.residual; 1057 if (msg->hdr.status != CTL_STATUS_NONE) { 1058 io->io_hdr.status = msg->hdr.status; 1059 io->scsiio.scsi_status = msg->scsi.scsi_status; 1060 io->scsiio.sense_len = msg->scsi.sense_len; 1061 io->scsiio.sense_residual =msg->scsi.sense_residual; 1062 memcpy(&io->scsiio.sense_data, 1063 &msg->scsi.sense_data, 1064 msg->scsi.sense_len); 1065 } 1066 ctl_enqueue_isc(io); 1067 break; 1068 } 1069 1070 /* Preformed on Originating SC, SER_ONLY mode */ 1071 case CTL_MSG_R2R: 1072 io = msg->hdr.original_sc; 1073 if (io == NULL) { 1074 printf("%s: original_sc == NULL!\n", 1075 __func__); 1076 break; 1077 } 1078 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1079 io->io_hdr.msg_type = CTL_MSG_R2R; 1080 io->io_hdr.serializing_sc = msg->hdr.serializing_sc; 1081 ctl_enqueue_isc(io); 1082 break; 1083 1084 /* 1085 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 1086 * mode. 1087 * Performed on the Originating (i.e. secondary) SC in XFER 1088 * mode 1089 */ 1090 case CTL_MSG_FINISH_IO: 1091 if (softc->ha_mode == CTL_HA_MODE_XFER) 1092 ctl_isc_handler_finish_xfer(softc, msg); 1093 else 1094 ctl_isc_handler_finish_ser_only(softc, msg); 1095 break; 1096 1097 /* Preformed on Originating SC */ 1098 case CTL_MSG_BAD_JUJU: 1099 io = msg->hdr.original_sc; 1100 if (io == NULL) { 1101 printf("%s: Bad JUJU!, original_sc is NULL!\n", 1102 __func__); 1103 break; 1104 } 1105 ctl_copy_sense_data(msg, io); 1106 /* 1107 * IO should have already been cleaned up on other 1108 * SC so clear this flag so we won't send a message 1109 * back to finish the IO there. 1110 */ 1111 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 1112 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1113 1114 /* io = msg->hdr.serializing_sc; */ 1115 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 1116 ctl_enqueue_isc(io); 1117 break; 1118 1119 /* Handle resets sent from the other side */ 1120 case CTL_MSG_MANAGE_TASKS: { 1121 struct ctl_taskio *taskio; 1122 taskio = (struct ctl_taskio *)ctl_alloc_io( 1123 softc->othersc_pool); 1124 ctl_zero_io((union ctl_io *)taskio); 1125 taskio->io_hdr.io_type = CTL_IO_TASK; 1126 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 1127 taskio->io_hdr.nexus = msg->hdr.nexus; 1128 taskio->task_action = msg->task.task_action; 1129 taskio->tag_num = msg->task.tag_num; 1130 taskio->tag_type = msg->task.tag_type; 1131#ifdef CTL_TIME_IO 1132 taskio->io_hdr.start_time = time_uptime; 1133 getbintime(&taskio->io_hdr.start_bt); 1134#endif /* CTL_TIME_IO */ 1135 ctl_run_task((union ctl_io *)taskio); 1136 break; 1137 } 1138 /* Persistent Reserve action which needs attention */ 1139 case CTL_MSG_PERS_ACTION: 1140 presio = (struct ctl_prio *)ctl_alloc_io( 1141 softc->othersc_pool); 1142 ctl_zero_io((union ctl_io *)presio); 1143 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 1144 presio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 1145 presio->io_hdr.nexus = msg->hdr.nexus; 1146 presio->pr_msg = msg->pr; 1147 ctl_enqueue_isc((union ctl_io *)presio); 1148 break; 1149 case CTL_MSG_UA: 1150 ctl_isc_ua(softc, msg, param); 1151 break; 1152 case CTL_MSG_PORT_SYNC: 1153 ctl_isc_port_sync(softc, msg, param); 1154 break; 1155 case CTL_MSG_LUN_SYNC: 1156 ctl_isc_lun_sync(softc, msg, param); 1157 break; 1158 default: 1159 printf("Received HA message of unknown type %d\n", 1160 msg->hdr.msg_type); 1161 break; 1162 } 1163 if (msg != &msgbuf) 1164 free(msg, M_CTL); 1165 } else if (event == CTL_HA_EVT_LINK_CHANGE) { 1166 printf("CTL: HA link status changed from %d to %d\n", 1167 softc->ha_link, param); 1168 if (param == softc->ha_link) 1169 return; 1170 if (softc->ha_link == CTL_HA_LINK_ONLINE) { 1171 softc->ha_link = param; 1172 ctl_isc_ha_link_down(softc); 1173 } else { 1174 softc->ha_link = param; 1175 if (softc->ha_link == CTL_HA_LINK_ONLINE) 1176 ctl_isc_ha_link_up(softc); 1177 } 1178 return; 1179 } else { 1180 printf("ctl_isc_event_handler: Unknown event %d\n", event); 1181 return; 1182 } 1183} 1184 1185static void 1186ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 1187{ 1188 1189 memcpy(&dest->scsiio.sense_data, &src->scsi.sense_data, 1190 src->scsi.sense_len); 1191 dest->scsiio.scsi_status = src->scsi.scsi_status; 1192 dest->scsiio.sense_len = src->scsi.sense_len; 1193 dest->io_hdr.status = src->hdr.status; 1194} 1195 1196static void 1197ctl_copy_sense_data_back(union ctl_io *src, union ctl_ha_msg *dest) 1198{ 1199 1200 memcpy(&dest->scsi.sense_data, &src->scsiio.sense_data, 1201 src->scsiio.sense_len); 1202 dest->scsi.scsi_status = src->scsiio.scsi_status; 1203 dest->scsi.sense_len = src->scsiio.sense_len; 1204 dest->hdr.status = src->io_hdr.status; 1205} 1206 1207void 1208ctl_est_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 1209{ 1210 struct ctl_softc *softc = lun->ctl_softc; 1211 ctl_ua_type *pu; 1212 1213 if (initidx < softc->init_min || initidx >= softc->init_max) 1214 return; 1215 mtx_assert(&lun->lun_lock, MA_OWNED); 1216 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1217 if (pu == NULL) 1218 return; 1219 pu[initidx % CTL_MAX_INIT_PER_PORT] |= ua; 1220} 1221 1222void 1223ctl_est_ua_port(struct ctl_lun *lun, int port, uint32_t except, ctl_ua_type ua) 1224{ 1225 int i; 1226 1227 mtx_assert(&lun->lun_lock, MA_OWNED); 1228 if (lun->pending_ua[port] == NULL) 1229 return; 1230 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1231 if (port * CTL_MAX_INIT_PER_PORT + i == except) 1232 continue; 1233 lun->pending_ua[port][i] |= ua; 1234 } 1235} 1236 1237void 1238ctl_est_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1239{ 1240 struct ctl_softc *softc = lun->ctl_softc; 1241 int i; 1242 1243 mtx_assert(&lun->lun_lock, MA_OWNED); 1244 for (i = softc->port_min; i < softc->port_max; i++) 1245 ctl_est_ua_port(lun, i, except, ua); 1246} 1247 1248void 1249ctl_clr_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 1250{ 1251 struct ctl_softc *softc = lun->ctl_softc; 1252 ctl_ua_type *pu; 1253 1254 if (initidx < softc->init_min || initidx >= softc->init_max) 1255 return; 1256 mtx_assert(&lun->lun_lock, MA_OWNED); 1257 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1258 if (pu == NULL) 1259 return; 1260 pu[initidx % CTL_MAX_INIT_PER_PORT] &= ~ua; 1261} 1262 1263void 1264ctl_clr_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1265{ 1266 struct ctl_softc *softc = lun->ctl_softc; 1267 int i, j; 1268 1269 mtx_assert(&lun->lun_lock, MA_OWNED); 1270 for (i = softc->port_min; i < softc->port_max; i++) { 1271 if (lun->pending_ua[i] == NULL) 1272 continue; 1273 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 1274 if (i * CTL_MAX_INIT_PER_PORT + j == except) 1275 continue; 1276 lun->pending_ua[i][j] &= ~ua; 1277 } 1278 } 1279} 1280 1281void 1282ctl_clr_ua_allluns(struct ctl_softc *ctl_softc, uint32_t initidx, 1283 ctl_ua_type ua_type) 1284{ 1285 struct ctl_lun *lun; 1286 1287 mtx_assert(&ctl_softc->ctl_lock, MA_OWNED); 1288 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) { 1289 mtx_lock(&lun->lun_lock); 1290 ctl_clr_ua(lun, initidx, ua_type); 1291 mtx_unlock(&lun->lun_lock); 1292 } 1293} 1294 1295static int 1296ctl_ha_role_sysctl(SYSCTL_HANDLER_ARGS) 1297{ 1298 struct ctl_softc *softc = (struct ctl_softc *)arg1; 1299 struct ctl_lun *lun; 1300 struct ctl_lun_req ireq; 1301 int error, value; 1302 1303 value = (softc->flags & CTL_FLAG_ACTIVE_SHELF) ? 0 : 1; 1304 error = sysctl_handle_int(oidp, &value, 0, req); 1305 if ((error != 0) || (req->newptr == NULL)) 1306 return (error); 1307 1308 mtx_lock(&softc->ctl_lock); 1309 if (value == 0) 1310 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1311 else 1312 softc->flags &= ~CTL_FLAG_ACTIVE_SHELF; 1313 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1314 mtx_unlock(&softc->ctl_lock); 1315 bzero(&ireq, sizeof(ireq)); 1316 ireq.reqtype = CTL_LUNREQ_MODIFY; 1317 ireq.reqdata.modify.lun_id = lun->lun; 1318 lun->backend->ioctl(NULL, CTL_LUN_REQ, (caddr_t)&ireq, 0, 1319 curthread); 1320 if (ireq.status != CTL_LUN_OK) { 1321 printf("%s: CTL_LUNREQ_MODIFY returned %d '%s'\n", 1322 __func__, ireq.status, ireq.error_str); 1323 } 1324 mtx_lock(&softc->ctl_lock); 1325 } 1326 mtx_unlock(&softc->ctl_lock); 1327 return (0); 1328} 1329 1330static int 1331ctl_init(void) 1332{ 1333 struct ctl_softc *softc; 1334 void *other_pool; 1335 int i, error, retval; 1336 1337 retval = 0; 1338 control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 1339 M_WAITOK | M_ZERO); 1340 softc = control_softc; 1341 1342 softc->dev = make_dev(&ctl_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, 1343 "cam/ctl"); 1344 1345 softc->dev->si_drv1 = softc; 1346 1347 sysctl_ctx_init(&softc->sysctl_ctx); 1348 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1349 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 1350 CTLFLAG_RD, 0, "CAM Target Layer"); 1351 1352 if (softc->sysctl_tree == NULL) { 1353 printf("%s: unable to allocate sysctl tree\n", __func__); 1354 destroy_dev(softc->dev); 1355 free(control_softc, M_DEVBUF); 1356 control_softc = NULL; 1357 return (ENOMEM); 1358 } 1359 1360 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 1361 softc->io_zone = uma_zcreate("CTL IO", sizeof(union ctl_io), 1362 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); 1363 softc->open_count = 0; 1364 1365 /* 1366 * Default to actually sending a SYNCHRONIZE CACHE command down to 1367 * the drive. 1368 */ 1369 softc->flags = CTL_FLAG_REAL_SYNC; 1370 1371 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1372 OID_AUTO, "ha_mode", CTLFLAG_RDTUN, (int *)&softc->ha_mode, 0, 1373 "HA mode (0 - act/stby, 1 - serialize only, 2 - xfer)"); 1374 1375 /* 1376 * In Copan's HA scheme, the "master" and "slave" roles are 1377 * figured out through the slot the controller is in. Although it 1378 * is an active/active system, someone has to be in charge. 1379 */ 1380 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1381 OID_AUTO, "ha_id", CTLFLAG_RDTUN, &softc->ha_id, 0, 1382 "HA head ID (0 - no HA)"); 1383 if (softc->ha_id == 0 || softc->ha_id > NUM_TARGET_PORT_GROUPS) { 1384 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1385 softc->is_single = 1; 1386 softc->port_cnt = CTL_MAX_PORTS; 1387 softc->port_min = 0; 1388 } else { 1389 softc->port_cnt = CTL_MAX_PORTS / NUM_TARGET_PORT_GROUPS; 1390 softc->port_min = (softc->ha_id - 1) * softc->port_cnt; 1391 } 1392 softc->port_max = softc->port_min + softc->port_cnt; 1393 softc->init_min = softc->port_min * CTL_MAX_INIT_PER_PORT; 1394 softc->init_max = softc->port_max * CTL_MAX_INIT_PER_PORT; 1395 1396 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1397 OID_AUTO, "ha_link", CTLFLAG_RD, (int *)&softc->ha_link, 0, 1398 "HA link state (0 - offline, 1 - unknown, 2 - online)"); 1399 1400 STAILQ_INIT(&softc->lun_list); 1401 STAILQ_INIT(&softc->pending_lun_queue); 1402 STAILQ_INIT(&softc->fe_list); 1403 STAILQ_INIT(&softc->port_list); 1404 STAILQ_INIT(&softc->be_list); 1405 ctl_tpc_init(softc); 1406 1407 if (ctl_pool_create(softc, "othersc", CTL_POOL_ENTRIES_OTHER_SC, 1408 &other_pool) != 0) 1409 { 1410 printf("ctl: can't allocate %d entry other SC pool, " 1411 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1412 return (ENOMEM); 1413 } 1414 softc->othersc_pool = other_pool; 1415 1416 if (worker_threads <= 0) 1417 worker_threads = max(1, mp_ncpus / 4); 1418 if (worker_threads > CTL_MAX_THREADS) 1419 worker_threads = CTL_MAX_THREADS; 1420 1421 for (i = 0; i < worker_threads; i++) { 1422 struct ctl_thread *thr = &softc->threads[i]; 1423 1424 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1425 thr->ctl_softc = softc; 1426 STAILQ_INIT(&thr->incoming_queue); 1427 STAILQ_INIT(&thr->rtr_queue); 1428 STAILQ_INIT(&thr->done_queue); 1429 STAILQ_INIT(&thr->isc_queue); 1430 1431 error = kproc_kthread_add(ctl_work_thread, thr, 1432 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1433 if (error != 0) { 1434 printf("error creating CTL work thread!\n"); 1435 ctl_pool_free(other_pool); 1436 return (error); 1437 } 1438 } 1439 error = kproc_kthread_add(ctl_lun_thread, softc, 1440 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1441 if (error != 0) { 1442 printf("error creating CTL lun thread!\n"); 1443 ctl_pool_free(other_pool); 1444 return (error); 1445 } 1446 error = kproc_kthread_add(ctl_thresh_thread, softc, 1447 &softc->ctl_proc, NULL, 0, 0, "ctl", "thresh"); 1448 if (error != 0) { 1449 printf("error creating CTL threshold thread!\n"); 1450 ctl_pool_free(other_pool); 1451 return (error); 1452 } 1453 1454 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1455 OID_AUTO, "ha_role", CTLTYPE_INT | CTLFLAG_RWTUN, 1456 softc, 0, ctl_ha_role_sysctl, "I", "HA role for this head"); 1457 1458 if (softc->is_single == 0) { 1459 ctl_frontend_register(&ha_frontend); 1460 if (ctl_ha_msg_init(softc) != CTL_HA_STATUS_SUCCESS) { 1461 printf("ctl_init: ctl_ha_msg_init failed.\n"); 1462 softc->is_single = 1; 1463 } else 1464 if (ctl_ha_msg_register(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 1465 != CTL_HA_STATUS_SUCCESS) { 1466 printf("ctl_init: ctl_ha_msg_register failed.\n"); 1467 softc->is_single = 1; 1468 } 1469 } 1470 return (0); 1471} 1472 1473void 1474ctl_shutdown(void) 1475{ 1476 struct ctl_softc *softc; 1477 struct ctl_lun *lun, *next_lun; 1478 1479 softc = (struct ctl_softc *)control_softc; 1480 1481 if (softc->is_single == 0) { 1482 if (ctl_ha_msg_deregister(CTL_HA_CHAN_CTL) 1483 != CTL_HA_STATUS_SUCCESS) { 1484 printf("ctl_shutdown: ctl_ha_msg_deregister failed.\n"); 1485 } 1486 if (ctl_ha_msg_shutdown(softc) != CTL_HA_STATUS_SUCCESS) { 1487 printf("ctl_shutdown: ctl_ha_msg_shutdown failed.\n"); 1488 } 1489 ctl_frontend_deregister(&ha_frontend); 1490 } 1491 1492 mtx_lock(&softc->ctl_lock); 1493 1494 /* 1495 * Free up each LUN. 1496 */ 1497 for (lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; lun = next_lun){ 1498 next_lun = STAILQ_NEXT(lun, links); 1499 ctl_free_lun(lun); 1500 } 1501 1502 mtx_unlock(&softc->ctl_lock); 1503 1504#if 0 1505 ctl_shutdown_thread(softc->work_thread); 1506 mtx_destroy(&softc->queue_lock); 1507#endif 1508 1509 ctl_tpc_shutdown(softc); 1510 uma_zdestroy(softc->io_zone); 1511 mtx_destroy(&softc->ctl_lock); 1512 1513 destroy_dev(softc->dev); 1514 1515 sysctl_ctx_free(&softc->sysctl_ctx); 1516 1517 free(control_softc, M_DEVBUF); 1518 control_softc = NULL; 1519} 1520 1521static int 1522ctl_module_event_handler(module_t mod, int what, void *arg) 1523{ 1524 1525 switch (what) { 1526 case MOD_LOAD: 1527 return (ctl_init()); 1528 case MOD_UNLOAD: 1529 return (EBUSY); 1530 default: 1531 return (EOPNOTSUPP); 1532 } 1533} 1534 1535/* 1536 * XXX KDM should we do some access checks here? Bump a reference count to 1537 * prevent a CTL module from being unloaded while someone has it open? 1538 */ 1539static int 1540ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1541{ 1542 return (0); 1543} 1544 1545static int 1546ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1547{ 1548 return (0); 1549} 1550 1551/* 1552 * Remove an initiator by port number and initiator ID. 1553 * Returns 0 for success, -1 for failure. 1554 */ 1555int 1556ctl_remove_initiator(struct ctl_port *port, int iid) 1557{ 1558 struct ctl_softc *softc = control_softc; 1559 1560 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1561 1562 if (iid > CTL_MAX_INIT_PER_PORT) { 1563 printf("%s: initiator ID %u > maximun %u!\n", 1564 __func__, iid, CTL_MAX_INIT_PER_PORT); 1565 return (-1); 1566 } 1567 1568 mtx_lock(&softc->ctl_lock); 1569 port->wwpn_iid[iid].in_use--; 1570 port->wwpn_iid[iid].last_use = time_uptime; 1571 mtx_unlock(&softc->ctl_lock); 1572 1573 return (0); 1574} 1575 1576/* 1577 * Add an initiator to the initiator map. 1578 * Returns iid for success, < 0 for failure. 1579 */ 1580int 1581ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 1582{ 1583 struct ctl_softc *softc = control_softc; 1584 time_t best_time; 1585 int i, best; 1586 1587 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1588 1589 if (iid >= CTL_MAX_INIT_PER_PORT) { 1590 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 1591 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 1592 free(name, M_CTL); 1593 return (-1); 1594 } 1595 1596 mtx_lock(&softc->ctl_lock); 1597 1598 if (iid < 0 && (wwpn != 0 || name != NULL)) { 1599 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1600 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 1601 iid = i; 1602 break; 1603 } 1604 if (name != NULL && port->wwpn_iid[i].name != NULL && 1605 strcmp(name, port->wwpn_iid[i].name) == 0) { 1606 iid = i; 1607 break; 1608 } 1609 } 1610 } 1611 1612 if (iid < 0) { 1613 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1614 if (port->wwpn_iid[i].in_use == 0 && 1615 port->wwpn_iid[i].wwpn == 0 && 1616 port->wwpn_iid[i].name == NULL) { 1617 iid = i; 1618 break; 1619 } 1620 } 1621 } 1622 1623 if (iid < 0) { 1624 best = -1; 1625 best_time = INT32_MAX; 1626 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1627 if (port->wwpn_iid[i].in_use == 0) { 1628 if (port->wwpn_iid[i].last_use < best_time) { 1629 best = i; 1630 best_time = port->wwpn_iid[i].last_use; 1631 } 1632 } 1633 } 1634 iid = best; 1635 } 1636 1637 if (iid < 0) { 1638 mtx_unlock(&softc->ctl_lock); 1639 free(name, M_CTL); 1640 return (-2); 1641 } 1642 1643 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 1644 /* 1645 * This is not an error yet. 1646 */ 1647 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 1648#if 0 1649 printf("%s: port %d iid %u WWPN %#jx arrived" 1650 " again\n", __func__, port->targ_port, 1651 iid, (uintmax_t)wwpn); 1652#endif 1653 goto take; 1654 } 1655 if (name != NULL && port->wwpn_iid[iid].name != NULL && 1656 strcmp(name, port->wwpn_iid[iid].name) == 0) { 1657#if 0 1658 printf("%s: port %d iid %u name '%s' arrived" 1659 " again\n", __func__, port->targ_port, 1660 iid, name); 1661#endif 1662 goto take; 1663 } 1664 1665 /* 1666 * This is an error, but what do we do about it? The 1667 * driver is telling us we have a new WWPN for this 1668 * initiator ID, so we pretty much need to use it. 1669 */ 1670 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 1671 " but WWPN %#jx '%s' is still at that address\n", 1672 __func__, port->targ_port, iid, wwpn, name, 1673 (uintmax_t)port->wwpn_iid[iid].wwpn, 1674 port->wwpn_iid[iid].name); 1675 1676 /* 1677 * XXX KDM clear have_ca and ua_pending on each LUN for 1678 * this initiator. 1679 */ 1680 } 1681take: 1682 free(port->wwpn_iid[iid].name, M_CTL); 1683 port->wwpn_iid[iid].name = name; 1684 port->wwpn_iid[iid].wwpn = wwpn; 1685 port->wwpn_iid[iid].in_use++; 1686 mtx_unlock(&softc->ctl_lock); 1687 1688 return (iid); 1689} 1690 1691static int 1692ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 1693{ 1694 int len; 1695 1696 switch (port->port_type) { 1697 case CTL_PORT_FC: 1698 { 1699 struct scsi_transportid_fcp *id = 1700 (struct scsi_transportid_fcp *)buf; 1701 if (port->wwpn_iid[iid].wwpn == 0) 1702 return (0); 1703 memset(id, 0, sizeof(*id)); 1704 id->format_protocol = SCSI_PROTO_FC; 1705 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 1706 return (sizeof(*id)); 1707 } 1708 case CTL_PORT_ISCSI: 1709 { 1710 struct scsi_transportid_iscsi_port *id = 1711 (struct scsi_transportid_iscsi_port *)buf; 1712 if (port->wwpn_iid[iid].name == NULL) 1713 return (0); 1714 memset(id, 0, 256); 1715 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 1716 SCSI_PROTO_ISCSI; 1717 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 1718 len = roundup2(min(len, 252), 4); 1719 scsi_ulto2b(len, id->additional_length); 1720 return (sizeof(*id) + len); 1721 } 1722 case CTL_PORT_SAS: 1723 { 1724 struct scsi_transportid_sas *id = 1725 (struct scsi_transportid_sas *)buf; 1726 if (port->wwpn_iid[iid].wwpn == 0) 1727 return (0); 1728 memset(id, 0, sizeof(*id)); 1729 id->format_protocol = SCSI_PROTO_SAS; 1730 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 1731 return (sizeof(*id)); 1732 } 1733 default: 1734 { 1735 struct scsi_transportid_spi *id = 1736 (struct scsi_transportid_spi *)buf; 1737 memset(id, 0, sizeof(*id)); 1738 id->format_protocol = SCSI_PROTO_SPI; 1739 scsi_ulto2b(iid, id->scsi_addr); 1740 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 1741 return (sizeof(*id)); 1742 } 1743 } 1744} 1745 1746/* 1747 * Serialize a command that went down the "wrong" side, and so was sent to 1748 * this controller for execution. The logic is a little different than the 1749 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 1750 * sent back to the other side, but in the success case, we execute the 1751 * command on this side (XFER mode) or tell the other side to execute it 1752 * (SER_ONLY mode). 1753 */ 1754static int 1755ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 1756{ 1757 struct ctl_softc *softc; 1758 union ctl_ha_msg msg_info; 1759 struct ctl_lun *lun; 1760 const struct ctl_cmd_entry *entry; 1761 int retval = 0; 1762 uint32_t targ_lun; 1763 1764 softc = control_softc; 1765 1766 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 1767 mtx_lock(&softc->ctl_lock); 1768 if ((targ_lun < CTL_MAX_LUNS) && 1769 ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 1770 mtx_lock(&lun->lun_lock); 1771 mtx_unlock(&softc->ctl_lock); 1772 /* 1773 * If the LUN is invalid, pretend that it doesn't exist. 1774 * It will go away as soon as all pending I/O has been 1775 * completed. 1776 */ 1777 if (lun->flags & CTL_LUN_DISABLED) { 1778 mtx_unlock(&lun->lun_lock); 1779 lun = NULL; 1780 } 1781 } else { 1782 mtx_unlock(&softc->ctl_lock); 1783 lun = NULL; 1784 } 1785 if (lun == NULL) { 1786 /* 1787 * The other node would not send this request to us unless 1788 * received announce that we are primary node for this LUN. 1789 * If this LUN does not exist now, it is probably result of 1790 * a race, so respond to initiator in the most opaque way. 1791 */ 1792 ctl_set_busy(ctsio); 1793 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 1794 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1795 msg_info.hdr.serializing_sc = NULL; 1796 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1797 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1798 sizeof(msg_info.scsi), M_WAITOK); 1799 return(1); 1800 } 1801 1802 entry = ctl_get_cmd_entry(ctsio, NULL); 1803 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 1804 mtx_unlock(&lun->lun_lock); 1805 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 1806 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1807 msg_info.hdr.serializing_sc = NULL; 1808 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1809 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1810 sizeof(msg_info.scsi), M_WAITOK); 1811 return(1); 1812 } 1813 1814 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 1815 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = lun->be_lun; 1816 1817 /* 1818 * Every I/O goes into the OOA queue for a 1819 * particular LUN, and stays there until completion. 1820 */ 1821#ifdef CTL_TIME_IO 1822 if (TAILQ_EMPTY(&lun->ooa_queue)) 1823 lun->idle_time += getsbinuptime() - lun->last_busy; 1824#endif 1825 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1826 1827 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 1828 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 1829 ooa_links))) { 1830 case CTL_ACTION_BLOCK: 1831 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 1832 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 1833 blocked_links); 1834 mtx_unlock(&lun->lun_lock); 1835 break; 1836 case CTL_ACTION_PASS: 1837 case CTL_ACTION_SKIP: 1838 if (softc->ha_mode == CTL_HA_MODE_XFER) { 1839 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 1840 ctl_enqueue_rtr((union ctl_io *)ctsio); 1841 mtx_unlock(&lun->lun_lock); 1842 } else { 1843 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 1844 mtx_unlock(&lun->lun_lock); 1845 1846 /* send msg back to other side */ 1847 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1848 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 1849 msg_info.hdr.msg_type = CTL_MSG_R2R; 1850 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1851 sizeof(msg_info.hdr), M_WAITOK); 1852 } 1853 break; 1854 case CTL_ACTION_OVERLAP: 1855 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1856 mtx_unlock(&lun->lun_lock); 1857 retval = 1; 1858 1859 ctl_set_overlapped_cmd(ctsio); 1860 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 1861 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1862 msg_info.hdr.serializing_sc = NULL; 1863 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1864 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1865 sizeof(msg_info.scsi), M_WAITOK); 1866 break; 1867 case CTL_ACTION_OVERLAP_TAG: 1868 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1869 mtx_unlock(&lun->lun_lock); 1870 retval = 1; 1871 ctl_set_overlapped_tag(ctsio, ctsio->tag_num); 1872 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 1873 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1874 msg_info.hdr.serializing_sc = NULL; 1875 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1876 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1877 sizeof(msg_info.scsi), M_WAITOK); 1878 break; 1879 case CTL_ACTION_ERROR: 1880 default: 1881 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1882 mtx_unlock(&lun->lun_lock); 1883 retval = 1; 1884 1885 ctl_set_internal_failure(ctsio, /*sks_valid*/ 0, 1886 /*retry_count*/ 0); 1887 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 1888 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1889 msg_info.hdr.serializing_sc = NULL; 1890 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1891 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1892 sizeof(msg_info.scsi), M_WAITOK); 1893 break; 1894 } 1895 return (retval); 1896} 1897 1898/* 1899 * Returns 0 for success, errno for failure. 1900 */ 1901static int 1902ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 1903 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 1904{ 1905 union ctl_io *io; 1906 int retval; 1907 1908 retval = 0; 1909 1910 mtx_lock(&lun->lun_lock); 1911 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 1912 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 1913 ooa_links)) { 1914 struct ctl_ooa_entry *entry; 1915 1916 /* 1917 * If we've got more than we can fit, just count the 1918 * remaining entries. 1919 */ 1920 if (*cur_fill_num >= ooa_hdr->alloc_num) 1921 continue; 1922 1923 entry = &kern_entries[*cur_fill_num]; 1924 1925 entry->tag_num = io->scsiio.tag_num; 1926 entry->lun_num = lun->lun; 1927#ifdef CTL_TIME_IO 1928 entry->start_bt = io->io_hdr.start_bt; 1929#endif 1930 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 1931 entry->cdb_len = io->scsiio.cdb_len; 1932 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 1933 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 1934 1935 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 1936 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 1937 1938 if (io->io_hdr.flags & CTL_FLAG_ABORT) 1939 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 1940 1941 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 1942 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 1943 1944 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 1945 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 1946 } 1947 mtx_unlock(&lun->lun_lock); 1948 1949 return (retval); 1950} 1951 1952static void * 1953ctl_copyin_alloc(void *user_addr, int len, char *error_str, 1954 size_t error_str_len) 1955{ 1956 void *kptr; 1957 1958 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 1959 1960 if (copyin(user_addr, kptr, len) != 0) { 1961 snprintf(error_str, error_str_len, "Error copying %d bytes " 1962 "from user address %p to kernel address %p", len, 1963 user_addr, kptr); 1964 free(kptr, M_CTL); 1965 return (NULL); 1966 } 1967 1968 return (kptr); 1969} 1970 1971static void 1972ctl_free_args(int num_args, struct ctl_be_arg *args) 1973{ 1974 int i; 1975 1976 if (args == NULL) 1977 return; 1978 1979 for (i = 0; i < num_args; i++) { 1980 free(args[i].kname, M_CTL); 1981 free(args[i].kvalue, M_CTL); 1982 } 1983 1984 free(args, M_CTL); 1985} 1986 1987static struct ctl_be_arg * 1988ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 1989 char *error_str, size_t error_str_len) 1990{ 1991 struct ctl_be_arg *args; 1992 int i; 1993 1994 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 1995 error_str, error_str_len); 1996 1997 if (args == NULL) 1998 goto bailout; 1999 2000 for (i = 0; i < num_args; i++) { 2001 args[i].kname = NULL; 2002 args[i].kvalue = NULL; 2003 } 2004 2005 for (i = 0; i < num_args; i++) { 2006 uint8_t *tmpptr; 2007 2008 args[i].kname = ctl_copyin_alloc(args[i].name, 2009 args[i].namelen, error_str, error_str_len); 2010 if (args[i].kname == NULL) 2011 goto bailout; 2012 2013 if (args[i].kname[args[i].namelen - 1] != '\0') { 2014 snprintf(error_str, error_str_len, "Argument %d " 2015 "name is not NUL-terminated", i); 2016 goto bailout; 2017 } 2018 2019 if (args[i].flags & CTL_BEARG_RD) { 2020 tmpptr = ctl_copyin_alloc(args[i].value, 2021 args[i].vallen, error_str, error_str_len); 2022 if (tmpptr == NULL) 2023 goto bailout; 2024 if ((args[i].flags & CTL_BEARG_ASCII) 2025 && (tmpptr[args[i].vallen - 1] != '\0')) { 2026 snprintf(error_str, error_str_len, "Argument " 2027 "%d value is not NUL-terminated", i); 2028 goto bailout; 2029 } 2030 args[i].kvalue = tmpptr; 2031 } else { 2032 args[i].kvalue = malloc(args[i].vallen, 2033 M_CTL, M_WAITOK | M_ZERO); 2034 } 2035 } 2036 2037 return (args); 2038bailout: 2039 2040 ctl_free_args(num_args, args); 2041 2042 return (NULL); 2043} 2044 2045static void 2046ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2047{ 2048 int i; 2049 2050 for (i = 0; i < num_args; i++) { 2051 if (args[i].flags & CTL_BEARG_WR) 2052 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2053 } 2054} 2055 2056/* 2057 * Escape characters that are illegal or not recommended in XML. 2058 */ 2059int 2060ctl_sbuf_printf_esc(struct sbuf *sb, char *str, int size) 2061{ 2062 char *end = str + size; 2063 int retval; 2064 2065 retval = 0; 2066 2067 for (; *str && str < end; str++) { 2068 switch (*str) { 2069 case '&': 2070 retval = sbuf_printf(sb, "&"); 2071 break; 2072 case '>': 2073 retval = sbuf_printf(sb, ">"); 2074 break; 2075 case '<': 2076 retval = sbuf_printf(sb, "<"); 2077 break; 2078 default: 2079 retval = sbuf_putc(sb, *str); 2080 break; 2081 } 2082 2083 if (retval != 0) 2084 break; 2085 2086 } 2087 2088 return (retval); 2089} 2090 2091static void 2092ctl_id_sbuf(struct ctl_devid *id, struct sbuf *sb) 2093{ 2094 struct scsi_vpd_id_descriptor *desc; 2095 int i; 2096 2097 if (id == NULL || id->len < 4) 2098 return; 2099 desc = (struct scsi_vpd_id_descriptor *)id->data; 2100 switch (desc->id_type & SVPD_ID_TYPE_MASK) { 2101 case SVPD_ID_TYPE_T10: 2102 sbuf_printf(sb, "t10."); 2103 break; 2104 case SVPD_ID_TYPE_EUI64: 2105 sbuf_printf(sb, "eui."); 2106 break; 2107 case SVPD_ID_TYPE_NAA: 2108 sbuf_printf(sb, "naa."); 2109 break; 2110 case SVPD_ID_TYPE_SCSI_NAME: 2111 break; 2112 } 2113 switch (desc->proto_codeset & SVPD_ID_CODESET_MASK) { 2114 case SVPD_ID_CODESET_BINARY: 2115 for (i = 0; i < desc->length; i++) 2116 sbuf_printf(sb, "%02x", desc->identifier[i]); 2117 break; 2118 case SVPD_ID_CODESET_ASCII: 2119 sbuf_printf(sb, "%.*s", (int)desc->length, 2120 (char *)desc->identifier); 2121 break; 2122 case SVPD_ID_CODESET_UTF8: 2123 sbuf_printf(sb, "%s", (char *)desc->identifier); 2124 break; 2125 } 2126} 2127 2128static int 2129ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2130 struct thread *td) 2131{ 2132 struct ctl_softc *softc; 2133 struct ctl_lun *lun; 2134 int retval; 2135 2136 softc = control_softc; 2137 2138 retval = 0; 2139 2140 switch (cmd) { 2141 case CTL_IO: 2142 retval = ctl_ioctl_io(dev, cmd, addr, flag, td); 2143 break; 2144 case CTL_ENABLE_PORT: 2145 case CTL_DISABLE_PORT: 2146 case CTL_SET_PORT_WWNS: { 2147 struct ctl_port *port; 2148 struct ctl_port_entry *entry; 2149 2150 entry = (struct ctl_port_entry *)addr; 2151 2152 mtx_lock(&softc->ctl_lock); 2153 STAILQ_FOREACH(port, &softc->port_list, links) { 2154 int action, done; 2155 2156 if (port->targ_port < softc->port_min || 2157 port->targ_port >= softc->port_max) 2158 continue; 2159 2160 action = 0; 2161 done = 0; 2162 if ((entry->port_type == CTL_PORT_NONE) 2163 && (entry->targ_port == port->targ_port)) { 2164 /* 2165 * If the user only wants to enable or 2166 * disable or set WWNs on a specific port, 2167 * do the operation and we're done. 2168 */ 2169 action = 1; 2170 done = 1; 2171 } else if (entry->port_type & port->port_type) { 2172 /* 2173 * Compare the user's type mask with the 2174 * particular frontend type to see if we 2175 * have a match. 2176 */ 2177 action = 1; 2178 done = 0; 2179 2180 /* 2181 * Make sure the user isn't trying to set 2182 * WWNs on multiple ports at the same time. 2183 */ 2184 if (cmd == CTL_SET_PORT_WWNS) { 2185 printf("%s: Can't set WWNs on " 2186 "multiple ports\n", __func__); 2187 retval = EINVAL; 2188 break; 2189 } 2190 } 2191 if (action == 0) 2192 continue; 2193 2194 /* 2195 * XXX KDM we have to drop the lock here, because 2196 * the online/offline operations can potentially 2197 * block. We need to reference count the frontends 2198 * so they can't go away, 2199 */ 2200 if (cmd == CTL_ENABLE_PORT) { 2201 mtx_unlock(&softc->ctl_lock); 2202 ctl_port_online(port); 2203 mtx_lock(&softc->ctl_lock); 2204 } else if (cmd == CTL_DISABLE_PORT) { 2205 mtx_unlock(&softc->ctl_lock); 2206 ctl_port_offline(port); 2207 mtx_lock(&softc->ctl_lock); 2208 } else if (cmd == CTL_SET_PORT_WWNS) { 2209 ctl_port_set_wwns(port, 2210 (entry->flags & CTL_PORT_WWNN_VALID) ? 2211 1 : 0, entry->wwnn, 2212 (entry->flags & CTL_PORT_WWPN_VALID) ? 2213 1 : 0, entry->wwpn); 2214 } 2215 if (done != 0) 2216 break; 2217 } 2218 mtx_unlock(&softc->ctl_lock); 2219 break; 2220 } 2221 case CTL_GET_PORT_LIST: { 2222 struct ctl_port *port; 2223 struct ctl_port_list *list; 2224 int i; 2225 2226 list = (struct ctl_port_list *)addr; 2227 2228 if (list->alloc_len != (list->alloc_num * 2229 sizeof(struct ctl_port_entry))) { 2230 printf("%s: CTL_GET_PORT_LIST: alloc_len %u != " 2231 "alloc_num %u * sizeof(struct ctl_port_entry) " 2232 "%zu\n", __func__, list->alloc_len, 2233 list->alloc_num, sizeof(struct ctl_port_entry)); 2234 retval = EINVAL; 2235 break; 2236 } 2237 list->fill_len = 0; 2238 list->fill_num = 0; 2239 list->dropped_num = 0; 2240 i = 0; 2241 mtx_lock(&softc->ctl_lock); 2242 STAILQ_FOREACH(port, &softc->port_list, links) { 2243 struct ctl_port_entry entry, *list_entry; 2244 2245 if (list->fill_num >= list->alloc_num) { 2246 list->dropped_num++; 2247 continue; 2248 } 2249 2250 entry.port_type = port->port_type; 2251 strlcpy(entry.port_name, port->port_name, 2252 sizeof(entry.port_name)); 2253 entry.targ_port = port->targ_port; 2254 entry.physical_port = port->physical_port; 2255 entry.virtual_port = port->virtual_port; 2256 entry.wwnn = port->wwnn; 2257 entry.wwpn = port->wwpn; 2258 if (port->status & CTL_PORT_STATUS_ONLINE) 2259 entry.online = 1; 2260 else 2261 entry.online = 0; 2262 2263 list_entry = &list->entries[i]; 2264 2265 retval = copyout(&entry, list_entry, sizeof(entry)); 2266 if (retval != 0) { 2267 printf("%s: CTL_GET_PORT_LIST: copyout " 2268 "returned %d\n", __func__, retval); 2269 break; 2270 } 2271 i++; 2272 list->fill_num++; 2273 list->fill_len += sizeof(entry); 2274 } 2275 mtx_unlock(&softc->ctl_lock); 2276 2277 /* 2278 * If this is non-zero, we had a copyout fault, so there's 2279 * probably no point in attempting to set the status inside 2280 * the structure. 2281 */ 2282 if (retval != 0) 2283 break; 2284 2285 if (list->dropped_num > 0) 2286 list->status = CTL_PORT_LIST_NEED_MORE_SPACE; 2287 else 2288 list->status = CTL_PORT_LIST_OK; 2289 break; 2290 } 2291 case CTL_DUMP_OOA: { 2292 union ctl_io *io; 2293 char printbuf[128]; 2294 struct sbuf sb; 2295 2296 mtx_lock(&softc->ctl_lock); 2297 printf("Dumping OOA queues:\n"); 2298 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2299 mtx_lock(&lun->lun_lock); 2300 for (io = (union ctl_io *)TAILQ_FIRST( 2301 &lun->ooa_queue); io != NULL; 2302 io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2303 ooa_links)) { 2304 sbuf_new(&sb, printbuf, sizeof(printbuf), 2305 SBUF_FIXEDLEN); 2306 sbuf_printf(&sb, "LUN %jd tag 0x%04x%s%s%s%s: ", 2307 (intmax_t)lun->lun, 2308 io->scsiio.tag_num, 2309 (io->io_hdr.flags & 2310 CTL_FLAG_BLOCKED) ? "" : " BLOCKED", 2311 (io->io_hdr.flags & 2312 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 2313 (io->io_hdr.flags & 2314 CTL_FLAG_ABORT) ? " ABORT" : "", 2315 (io->io_hdr.flags & 2316 CTL_FLAG_IS_WAS_ON_RTR) ? " RTR" : ""); 2317 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 2318 sbuf_finish(&sb); 2319 printf("%s\n", sbuf_data(&sb)); 2320 } 2321 mtx_unlock(&lun->lun_lock); 2322 } 2323 printf("OOA queues dump done\n"); 2324 mtx_unlock(&softc->ctl_lock); 2325 break; 2326 } 2327 case CTL_GET_OOA: { 2328 struct ctl_ooa *ooa_hdr; 2329 struct ctl_ooa_entry *entries; 2330 uint32_t cur_fill_num; 2331 2332 ooa_hdr = (struct ctl_ooa *)addr; 2333 2334 if ((ooa_hdr->alloc_len == 0) 2335 || (ooa_hdr->alloc_num == 0)) { 2336 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2337 "must be non-zero\n", __func__, 2338 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2339 retval = EINVAL; 2340 break; 2341 } 2342 2343 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2344 sizeof(struct ctl_ooa_entry))) { 2345 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2346 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2347 __func__, ooa_hdr->alloc_len, 2348 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2349 retval = EINVAL; 2350 break; 2351 } 2352 2353 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2354 if (entries == NULL) { 2355 printf("%s: could not allocate %d bytes for OOA " 2356 "dump\n", __func__, ooa_hdr->alloc_len); 2357 retval = ENOMEM; 2358 break; 2359 } 2360 2361 mtx_lock(&softc->ctl_lock); 2362 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2363 && ((ooa_hdr->lun_num >= CTL_MAX_LUNS) 2364 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2365 mtx_unlock(&softc->ctl_lock); 2366 free(entries, M_CTL); 2367 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2368 __func__, (uintmax_t)ooa_hdr->lun_num); 2369 retval = EINVAL; 2370 break; 2371 } 2372 2373 cur_fill_num = 0; 2374 2375 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2376 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2377 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2378 ooa_hdr, entries); 2379 if (retval != 0) 2380 break; 2381 } 2382 if (retval != 0) { 2383 mtx_unlock(&softc->ctl_lock); 2384 free(entries, M_CTL); 2385 break; 2386 } 2387 } else { 2388 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2389 2390 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num,ooa_hdr, 2391 entries); 2392 } 2393 mtx_unlock(&softc->ctl_lock); 2394 2395 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2396 ooa_hdr->fill_len = ooa_hdr->fill_num * 2397 sizeof(struct ctl_ooa_entry); 2398 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2399 if (retval != 0) { 2400 printf("%s: error copying out %d bytes for OOA dump\n", 2401 __func__, ooa_hdr->fill_len); 2402 } 2403 2404 getbintime(&ooa_hdr->cur_bt); 2405 2406 if (cur_fill_num > ooa_hdr->alloc_num) { 2407 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2408 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2409 } else { 2410 ooa_hdr->dropped_num = 0; 2411 ooa_hdr->status = CTL_OOA_OK; 2412 } 2413 2414 free(entries, M_CTL); 2415 break; 2416 } 2417 case CTL_CHECK_OOA: { 2418 union ctl_io *io; 2419 struct ctl_ooa_info *ooa_info; 2420 2421 2422 ooa_info = (struct ctl_ooa_info *)addr; 2423 2424 if (ooa_info->lun_id >= CTL_MAX_LUNS) { 2425 ooa_info->status = CTL_OOA_INVALID_LUN; 2426 break; 2427 } 2428 mtx_lock(&softc->ctl_lock); 2429 lun = softc->ctl_luns[ooa_info->lun_id]; 2430 if (lun == NULL) { 2431 mtx_unlock(&softc->ctl_lock); 2432 ooa_info->status = CTL_OOA_INVALID_LUN; 2433 break; 2434 } 2435 mtx_lock(&lun->lun_lock); 2436 mtx_unlock(&softc->ctl_lock); 2437 ooa_info->num_entries = 0; 2438 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 2439 io != NULL; io = (union ctl_io *)TAILQ_NEXT( 2440 &io->io_hdr, ooa_links)) { 2441 ooa_info->num_entries++; 2442 } 2443 mtx_unlock(&lun->lun_lock); 2444 2445 ooa_info->status = CTL_OOA_SUCCESS; 2446 2447 break; 2448 } 2449 case CTL_DELAY_IO: { 2450 struct ctl_io_delay_info *delay_info; 2451 2452 delay_info = (struct ctl_io_delay_info *)addr; 2453 2454#ifdef CTL_IO_DELAY 2455 mtx_lock(&softc->ctl_lock); 2456 2457 if ((delay_info->lun_id >= CTL_MAX_LUNS) 2458 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2459 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2460 } else { 2461 lun = softc->ctl_luns[delay_info->lun_id]; 2462 mtx_lock(&lun->lun_lock); 2463 2464 delay_info->status = CTL_DELAY_STATUS_OK; 2465 2466 switch (delay_info->delay_type) { 2467 case CTL_DELAY_TYPE_CONT: 2468 break; 2469 case CTL_DELAY_TYPE_ONESHOT: 2470 break; 2471 default: 2472 delay_info->status = 2473 CTL_DELAY_STATUS_INVALID_TYPE; 2474 break; 2475 } 2476 2477 switch (delay_info->delay_loc) { 2478 case CTL_DELAY_LOC_DATAMOVE: 2479 lun->delay_info.datamove_type = 2480 delay_info->delay_type; 2481 lun->delay_info.datamove_delay = 2482 delay_info->delay_secs; 2483 break; 2484 case CTL_DELAY_LOC_DONE: 2485 lun->delay_info.done_type = 2486 delay_info->delay_type; 2487 lun->delay_info.done_delay = 2488 delay_info->delay_secs; 2489 break; 2490 default: 2491 delay_info->status = 2492 CTL_DELAY_STATUS_INVALID_LOC; 2493 break; 2494 } 2495 mtx_unlock(&lun->lun_lock); 2496 } 2497 2498 mtx_unlock(&softc->ctl_lock); 2499#else 2500 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2501#endif /* CTL_IO_DELAY */ 2502 break; 2503 } 2504 case CTL_REALSYNC_SET: { 2505 int *syncstate; 2506 2507 syncstate = (int *)addr; 2508 2509 mtx_lock(&softc->ctl_lock); 2510 switch (*syncstate) { 2511 case 0: 2512 softc->flags &= ~CTL_FLAG_REAL_SYNC; 2513 break; 2514 case 1: 2515 softc->flags |= CTL_FLAG_REAL_SYNC; 2516 break; 2517 default: 2518 retval = EINVAL; 2519 break; 2520 } 2521 mtx_unlock(&softc->ctl_lock); 2522 break; 2523 } 2524 case CTL_REALSYNC_GET: { 2525 int *syncstate; 2526 2527 syncstate = (int*)addr; 2528 2529 mtx_lock(&softc->ctl_lock); 2530 if (softc->flags & CTL_FLAG_REAL_SYNC) 2531 *syncstate = 1; 2532 else 2533 *syncstate = 0; 2534 mtx_unlock(&softc->ctl_lock); 2535 2536 break; 2537 } 2538 case CTL_SETSYNC: 2539 case CTL_GETSYNC: { 2540 struct ctl_sync_info *sync_info; 2541 2542 sync_info = (struct ctl_sync_info *)addr; 2543 2544 mtx_lock(&softc->ctl_lock); 2545 lun = softc->ctl_luns[sync_info->lun_id]; 2546 if (lun == NULL) { 2547 mtx_unlock(&softc->ctl_lock); 2548 sync_info->status = CTL_GS_SYNC_NO_LUN; 2549 break; 2550 } 2551 /* 2552 * Get or set the sync interval. We're not bounds checking 2553 * in the set case, hopefully the user won't do something 2554 * silly. 2555 */ 2556 mtx_lock(&lun->lun_lock); 2557 mtx_unlock(&softc->ctl_lock); 2558 if (cmd == CTL_GETSYNC) 2559 sync_info->sync_interval = lun->sync_interval; 2560 else 2561 lun->sync_interval = sync_info->sync_interval; 2562 mtx_unlock(&lun->lun_lock); 2563 2564 sync_info->status = CTL_GS_SYNC_OK; 2565 2566 break; 2567 } 2568 case CTL_GETSTATS: { 2569 struct ctl_stats *stats; 2570 int i; 2571 2572 stats = (struct ctl_stats *)addr; 2573 2574 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2575 stats->alloc_len) { 2576 stats->status = CTL_SS_NEED_MORE_SPACE; 2577 stats->num_luns = softc->num_luns; 2578 break; 2579 } 2580 /* 2581 * XXX KDM no locking here. If the LUN list changes, 2582 * things can blow up. 2583 */ 2584 for (i = 0, lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; 2585 i++, lun = STAILQ_NEXT(lun, links)) { 2586 retval = copyout(&lun->stats, &stats->lun_stats[i], 2587 sizeof(lun->stats)); 2588 if (retval != 0) 2589 break; 2590 } 2591 stats->num_luns = softc->num_luns; 2592 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2593 softc->num_luns; 2594 stats->status = CTL_SS_OK; 2595#ifdef CTL_TIME_IO 2596 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2597#else 2598 stats->flags = CTL_STATS_FLAG_NONE; 2599#endif 2600 getnanouptime(&stats->timestamp); 2601 break; 2602 } 2603 case CTL_ERROR_INJECT: { 2604 struct ctl_error_desc *err_desc, *new_err_desc; 2605 2606 err_desc = (struct ctl_error_desc *)addr; 2607 2608 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2609 M_WAITOK | M_ZERO); 2610 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2611 2612 mtx_lock(&softc->ctl_lock); 2613 lun = softc->ctl_luns[err_desc->lun_id]; 2614 if (lun == NULL) { 2615 mtx_unlock(&softc->ctl_lock); 2616 free(new_err_desc, M_CTL); 2617 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2618 __func__, (uintmax_t)err_desc->lun_id); 2619 retval = EINVAL; 2620 break; 2621 } 2622 mtx_lock(&lun->lun_lock); 2623 mtx_unlock(&softc->ctl_lock); 2624 2625 /* 2626 * We could do some checking here to verify the validity 2627 * of the request, but given the complexity of error 2628 * injection requests, the checking logic would be fairly 2629 * complex. 2630 * 2631 * For now, if the request is invalid, it just won't get 2632 * executed and might get deleted. 2633 */ 2634 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2635 2636 /* 2637 * XXX KDM check to make sure the serial number is unique, 2638 * in case we somehow manage to wrap. That shouldn't 2639 * happen for a very long time, but it's the right thing to 2640 * do. 2641 */ 2642 new_err_desc->serial = lun->error_serial; 2643 err_desc->serial = lun->error_serial; 2644 lun->error_serial++; 2645 2646 mtx_unlock(&lun->lun_lock); 2647 break; 2648 } 2649 case CTL_ERROR_INJECT_DELETE: { 2650 struct ctl_error_desc *delete_desc, *desc, *desc2; 2651 int delete_done; 2652 2653 delete_desc = (struct ctl_error_desc *)addr; 2654 delete_done = 0; 2655 2656 mtx_lock(&softc->ctl_lock); 2657 lun = softc->ctl_luns[delete_desc->lun_id]; 2658 if (lun == NULL) { 2659 mtx_unlock(&softc->ctl_lock); 2660 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 2661 __func__, (uintmax_t)delete_desc->lun_id); 2662 retval = EINVAL; 2663 break; 2664 } 2665 mtx_lock(&lun->lun_lock); 2666 mtx_unlock(&softc->ctl_lock); 2667 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 2668 if (desc->serial != delete_desc->serial) 2669 continue; 2670 2671 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 2672 links); 2673 free(desc, M_CTL); 2674 delete_done = 1; 2675 } 2676 mtx_unlock(&lun->lun_lock); 2677 if (delete_done == 0) { 2678 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 2679 "error serial %ju on LUN %u\n", __func__, 2680 delete_desc->serial, delete_desc->lun_id); 2681 retval = EINVAL; 2682 break; 2683 } 2684 break; 2685 } 2686 case CTL_DUMP_STRUCTS: { 2687 int i, j, k; 2688 struct ctl_port *port; 2689 struct ctl_frontend *fe; 2690 2691 mtx_lock(&softc->ctl_lock); 2692 printf("CTL Persistent Reservation information start:\n"); 2693 for (i = 0; i < CTL_MAX_LUNS; i++) { 2694 lun = softc->ctl_luns[i]; 2695 2696 if ((lun == NULL) 2697 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 2698 continue; 2699 2700 for (j = 0; j < CTL_MAX_PORTS; j++) { 2701 if (lun->pr_keys[j] == NULL) 2702 continue; 2703 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 2704 if (lun->pr_keys[j][k] == 0) 2705 continue; 2706 printf(" LUN %d port %d iid %d key " 2707 "%#jx\n", i, j, k, 2708 (uintmax_t)lun->pr_keys[j][k]); 2709 } 2710 } 2711 } 2712 printf("CTL Persistent Reservation information end\n"); 2713 printf("CTL Ports:\n"); 2714 STAILQ_FOREACH(port, &softc->port_list, links) { 2715 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 2716 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 2717 port->frontend->name, port->port_type, 2718 port->physical_port, port->virtual_port, 2719 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 2720 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 2721 if (port->wwpn_iid[j].in_use == 0 && 2722 port->wwpn_iid[j].wwpn == 0 && 2723 port->wwpn_iid[j].name == NULL) 2724 continue; 2725 2726 printf(" iid %u use %d WWPN %#jx '%s'\n", 2727 j, port->wwpn_iid[j].in_use, 2728 (uintmax_t)port->wwpn_iid[j].wwpn, 2729 port->wwpn_iid[j].name); 2730 } 2731 } 2732 printf("CTL Port information end\n"); 2733 mtx_unlock(&softc->ctl_lock); 2734 /* 2735 * XXX KDM calling this without a lock. We'd likely want 2736 * to drop the lock before calling the frontend's dump 2737 * routine anyway. 2738 */ 2739 printf("CTL Frontends:\n"); 2740 STAILQ_FOREACH(fe, &softc->fe_list, links) { 2741 printf(" Frontend '%s'\n", fe->name); 2742 if (fe->fe_dump != NULL) 2743 fe->fe_dump(); 2744 } 2745 printf("CTL Frontend information end\n"); 2746 break; 2747 } 2748 case CTL_LUN_REQ: { 2749 struct ctl_lun_req *lun_req; 2750 struct ctl_backend_driver *backend; 2751 2752 lun_req = (struct ctl_lun_req *)addr; 2753 2754 backend = ctl_backend_find(lun_req->backend); 2755 if (backend == NULL) { 2756 lun_req->status = CTL_LUN_ERROR; 2757 snprintf(lun_req->error_str, 2758 sizeof(lun_req->error_str), 2759 "Backend \"%s\" not found.", 2760 lun_req->backend); 2761 break; 2762 } 2763 if (lun_req->num_be_args > 0) { 2764 lun_req->kern_be_args = ctl_copyin_args( 2765 lun_req->num_be_args, 2766 lun_req->be_args, 2767 lun_req->error_str, 2768 sizeof(lun_req->error_str)); 2769 if (lun_req->kern_be_args == NULL) { 2770 lun_req->status = CTL_LUN_ERROR; 2771 break; 2772 } 2773 } 2774 2775 retval = backend->ioctl(dev, cmd, addr, flag, td); 2776 2777 if (lun_req->num_be_args > 0) { 2778 ctl_copyout_args(lun_req->num_be_args, 2779 lun_req->kern_be_args); 2780 ctl_free_args(lun_req->num_be_args, 2781 lun_req->kern_be_args); 2782 } 2783 break; 2784 } 2785 case CTL_LUN_LIST: { 2786 struct sbuf *sb; 2787 struct ctl_lun_list *list; 2788 struct ctl_option *opt; 2789 2790 list = (struct ctl_lun_list *)addr; 2791 2792 /* 2793 * Allocate a fixed length sbuf here, based on the length 2794 * of the user's buffer. We could allocate an auto-extending 2795 * buffer, and then tell the user how much larger our 2796 * amount of data is than his buffer, but that presents 2797 * some problems: 2798 * 2799 * 1. The sbuf(9) routines use a blocking malloc, and so 2800 * we can't hold a lock while calling them with an 2801 * auto-extending buffer. 2802 * 2803 * 2. There is not currently a LUN reference counting 2804 * mechanism, outside of outstanding transactions on 2805 * the LUN's OOA queue. So a LUN could go away on us 2806 * while we're getting the LUN number, backend-specific 2807 * information, etc. Thus, given the way things 2808 * currently work, we need to hold the CTL lock while 2809 * grabbing LUN information. 2810 * 2811 * So, from the user's standpoint, the best thing to do is 2812 * allocate what he thinks is a reasonable buffer length, 2813 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 2814 * double the buffer length and try again. (And repeat 2815 * that until he succeeds.) 2816 */ 2817 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 2818 if (sb == NULL) { 2819 list->status = CTL_LUN_LIST_ERROR; 2820 snprintf(list->error_str, sizeof(list->error_str), 2821 "Unable to allocate %d bytes for LUN list", 2822 list->alloc_len); 2823 break; 2824 } 2825 2826 sbuf_printf(sb, "<ctllunlist>\n"); 2827 2828 mtx_lock(&softc->ctl_lock); 2829 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2830 mtx_lock(&lun->lun_lock); 2831 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 2832 (uintmax_t)lun->lun); 2833 2834 /* 2835 * Bail out as soon as we see that we've overfilled 2836 * the buffer. 2837 */ 2838 if (retval != 0) 2839 break; 2840 2841 retval = sbuf_printf(sb, "\t<backend_type>%s" 2842 "</backend_type>\n", 2843 (lun->backend == NULL) ? "none" : 2844 lun->backend->name); 2845 2846 if (retval != 0) 2847 break; 2848 2849 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 2850 lun->be_lun->lun_type); 2851 2852 if (retval != 0) 2853 break; 2854 2855 if (lun->backend == NULL) { 2856 retval = sbuf_printf(sb, "</lun>\n"); 2857 if (retval != 0) 2858 break; 2859 continue; 2860 } 2861 2862 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 2863 (lun->be_lun->maxlba > 0) ? 2864 lun->be_lun->maxlba + 1 : 0); 2865 2866 if (retval != 0) 2867 break; 2868 2869 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 2870 lun->be_lun->blocksize); 2871 2872 if (retval != 0) 2873 break; 2874 2875 retval = sbuf_printf(sb, "\t<serial_number>"); 2876 2877 if (retval != 0) 2878 break; 2879 2880 retval = ctl_sbuf_printf_esc(sb, 2881 lun->be_lun->serial_num, 2882 sizeof(lun->be_lun->serial_num)); 2883 2884 if (retval != 0) 2885 break; 2886 2887 retval = sbuf_printf(sb, "</serial_number>\n"); 2888 2889 if (retval != 0) 2890 break; 2891 2892 retval = sbuf_printf(sb, "\t<device_id>"); 2893 2894 if (retval != 0) 2895 break; 2896 2897 retval = ctl_sbuf_printf_esc(sb, 2898 lun->be_lun->device_id, 2899 sizeof(lun->be_lun->device_id)); 2900 2901 if (retval != 0) 2902 break; 2903 2904 retval = sbuf_printf(sb, "</device_id>\n"); 2905 2906 if (retval != 0) 2907 break; 2908 2909 if (lun->backend->lun_info != NULL) { 2910 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 2911 if (retval != 0) 2912 break; 2913 } 2914 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 2915 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 2916 opt->name, opt->value, opt->name); 2917 if (retval != 0) 2918 break; 2919 } 2920 2921 retval = sbuf_printf(sb, "</lun>\n"); 2922 2923 if (retval != 0) 2924 break; 2925 mtx_unlock(&lun->lun_lock); 2926 } 2927 if (lun != NULL) 2928 mtx_unlock(&lun->lun_lock); 2929 mtx_unlock(&softc->ctl_lock); 2930 2931 if ((retval != 0) 2932 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 2933 retval = 0; 2934 sbuf_delete(sb); 2935 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 2936 snprintf(list->error_str, sizeof(list->error_str), 2937 "Out of space, %d bytes is too small", 2938 list->alloc_len); 2939 break; 2940 } 2941 2942 sbuf_finish(sb); 2943 2944 retval = copyout(sbuf_data(sb), list->lun_xml, 2945 sbuf_len(sb) + 1); 2946 2947 list->fill_len = sbuf_len(sb) + 1; 2948 list->status = CTL_LUN_LIST_OK; 2949 sbuf_delete(sb); 2950 break; 2951 } 2952 case CTL_ISCSI: { 2953 struct ctl_iscsi *ci; 2954 struct ctl_frontend *fe; 2955 2956 ci = (struct ctl_iscsi *)addr; 2957 2958 fe = ctl_frontend_find("iscsi"); 2959 if (fe == NULL) { 2960 ci->status = CTL_ISCSI_ERROR; 2961 snprintf(ci->error_str, sizeof(ci->error_str), 2962 "Frontend \"iscsi\" not found."); 2963 break; 2964 } 2965 2966 retval = fe->ioctl(dev, cmd, addr, flag, td); 2967 break; 2968 } 2969 case CTL_PORT_REQ: { 2970 struct ctl_req *req; 2971 struct ctl_frontend *fe; 2972 2973 req = (struct ctl_req *)addr; 2974 2975 fe = ctl_frontend_find(req->driver); 2976 if (fe == NULL) { 2977 req->status = CTL_LUN_ERROR; 2978 snprintf(req->error_str, sizeof(req->error_str), 2979 "Frontend \"%s\" not found.", req->driver); 2980 break; 2981 } 2982 if (req->num_args > 0) { 2983 req->kern_args = ctl_copyin_args(req->num_args, 2984 req->args, req->error_str, sizeof(req->error_str)); 2985 if (req->kern_args == NULL) { 2986 req->status = CTL_LUN_ERROR; 2987 break; 2988 } 2989 } 2990 2991 if (fe->ioctl) 2992 retval = fe->ioctl(dev, cmd, addr, flag, td); 2993 else 2994 retval = ENODEV; 2995 2996 if (req->num_args > 0) { 2997 ctl_copyout_args(req->num_args, req->kern_args); 2998 ctl_free_args(req->num_args, req->kern_args); 2999 } 3000 break; 3001 } 3002 case CTL_PORT_LIST: { 3003 struct sbuf *sb; 3004 struct ctl_port *port; 3005 struct ctl_lun_list *list; 3006 struct ctl_option *opt; 3007 int j; 3008 uint32_t plun; 3009 3010 list = (struct ctl_lun_list *)addr; 3011 3012 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3013 if (sb == NULL) { 3014 list->status = CTL_LUN_LIST_ERROR; 3015 snprintf(list->error_str, sizeof(list->error_str), 3016 "Unable to allocate %d bytes for LUN list", 3017 list->alloc_len); 3018 break; 3019 } 3020 3021 sbuf_printf(sb, "<ctlportlist>\n"); 3022 3023 mtx_lock(&softc->ctl_lock); 3024 STAILQ_FOREACH(port, &softc->port_list, links) { 3025 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3026 (uintmax_t)port->targ_port); 3027 3028 /* 3029 * Bail out as soon as we see that we've overfilled 3030 * the buffer. 3031 */ 3032 if (retval != 0) 3033 break; 3034 3035 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3036 "</frontend_type>\n", port->frontend->name); 3037 if (retval != 0) 3038 break; 3039 3040 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3041 port->port_type); 3042 if (retval != 0) 3043 break; 3044 3045 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3046 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3047 if (retval != 0) 3048 break; 3049 3050 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3051 port->port_name); 3052 if (retval != 0) 3053 break; 3054 3055 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3056 port->physical_port); 3057 if (retval != 0) 3058 break; 3059 3060 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3061 port->virtual_port); 3062 if (retval != 0) 3063 break; 3064 3065 if (port->target_devid != NULL) { 3066 sbuf_printf(sb, "\t<target>"); 3067 ctl_id_sbuf(port->target_devid, sb); 3068 sbuf_printf(sb, "</target>\n"); 3069 } 3070 3071 if (port->port_devid != NULL) { 3072 sbuf_printf(sb, "\t<port>"); 3073 ctl_id_sbuf(port->port_devid, sb); 3074 sbuf_printf(sb, "</port>\n"); 3075 } 3076 3077 if (port->port_info != NULL) { 3078 retval = port->port_info(port->onoff_arg, sb); 3079 if (retval != 0) 3080 break; 3081 } 3082 STAILQ_FOREACH(opt, &port->options, links) { 3083 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3084 opt->name, opt->value, opt->name); 3085 if (retval != 0) 3086 break; 3087 } 3088 3089 if (port->lun_map != NULL) { 3090 sbuf_printf(sb, "\t<lun_map>on</lun_map>\n"); 3091 for (j = 0; j < CTL_MAX_LUNS; j++) { 3092 plun = ctl_lun_map_from_port(port, j); 3093 if (plun >= CTL_MAX_LUNS) 3094 continue; 3095 sbuf_printf(sb, 3096 "\t<lun id=\"%u\">%u</lun>\n", 3097 j, plun); 3098 } 3099 } 3100 3101 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3102 if (port->wwpn_iid[j].in_use == 0 || 3103 (port->wwpn_iid[j].wwpn == 0 && 3104 port->wwpn_iid[j].name == NULL)) 3105 continue; 3106 3107 if (port->wwpn_iid[j].name != NULL) 3108 retval = sbuf_printf(sb, 3109 "\t<initiator id=\"%u\">%s</initiator>\n", 3110 j, port->wwpn_iid[j].name); 3111 else 3112 retval = sbuf_printf(sb, 3113 "\t<initiator id=\"%u\">naa.%08jx</initiator>\n", 3114 j, port->wwpn_iid[j].wwpn); 3115 if (retval != 0) 3116 break; 3117 } 3118 if (retval != 0) 3119 break; 3120 3121 retval = sbuf_printf(sb, "</targ_port>\n"); 3122 if (retval != 0) 3123 break; 3124 } 3125 mtx_unlock(&softc->ctl_lock); 3126 3127 if ((retval != 0) 3128 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3129 retval = 0; 3130 sbuf_delete(sb); 3131 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3132 snprintf(list->error_str, sizeof(list->error_str), 3133 "Out of space, %d bytes is too small", 3134 list->alloc_len); 3135 break; 3136 } 3137 3138 sbuf_finish(sb); 3139 3140 retval = copyout(sbuf_data(sb), list->lun_xml, 3141 sbuf_len(sb) + 1); 3142 3143 list->fill_len = sbuf_len(sb) + 1; 3144 list->status = CTL_LUN_LIST_OK; 3145 sbuf_delete(sb); 3146 break; 3147 } 3148 case CTL_LUN_MAP: { 3149 struct ctl_lun_map *lm = (struct ctl_lun_map *)addr; 3150 struct ctl_port *port; 3151 3152 mtx_lock(&softc->ctl_lock); 3153 if (lm->port < softc->port_min || 3154 lm->port >= softc->port_max || 3155 (port = softc->ctl_ports[lm->port]) == NULL) { 3156 mtx_unlock(&softc->ctl_lock); 3157 return (ENXIO); 3158 } 3159 if (port->status & CTL_PORT_STATUS_ONLINE) { 3160 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3161 if (ctl_lun_map_to_port(port, lun->lun) >= 3162 CTL_MAX_LUNS) 3163 continue; 3164 mtx_lock(&lun->lun_lock); 3165 ctl_est_ua_port(lun, lm->port, -1, 3166 CTL_UA_LUN_CHANGE); 3167 mtx_unlock(&lun->lun_lock); 3168 } 3169 } 3170 mtx_unlock(&softc->ctl_lock); // XXX: port_enable sleeps 3171 if (lm->plun < CTL_MAX_LUNS) { 3172 if (lm->lun == UINT32_MAX) 3173 retval = ctl_lun_map_unset(port, lm->plun); 3174 else if (lm->lun < CTL_MAX_LUNS && 3175 softc->ctl_luns[lm->lun] != NULL) 3176 retval = ctl_lun_map_set(port, lm->plun, lm->lun); 3177 else 3178 return (ENXIO); 3179 } else if (lm->plun == UINT32_MAX) { 3180 if (lm->lun == UINT32_MAX) 3181 retval = ctl_lun_map_deinit(port); 3182 else 3183 retval = ctl_lun_map_init(port); 3184 } else 3185 return (ENXIO); 3186 if (port->status & CTL_PORT_STATUS_ONLINE) 3187 ctl_isc_announce_port(port); 3188 break; 3189 } 3190 default: { 3191 /* XXX KDM should we fix this? */ 3192#if 0 3193 struct ctl_backend_driver *backend; 3194 unsigned int type; 3195 int found; 3196 3197 found = 0; 3198 3199 /* 3200 * We encode the backend type as the ioctl type for backend 3201 * ioctls. So parse it out here, and then search for a 3202 * backend of this type. 3203 */ 3204 type = _IOC_TYPE(cmd); 3205 3206 STAILQ_FOREACH(backend, &softc->be_list, links) { 3207 if (backend->type == type) { 3208 found = 1; 3209 break; 3210 } 3211 } 3212 if (found == 0) { 3213 printf("ctl: unknown ioctl command %#lx or backend " 3214 "%d\n", cmd, type); 3215 retval = EINVAL; 3216 break; 3217 } 3218 retval = backend->ioctl(dev, cmd, addr, flag, td); 3219#endif 3220 retval = ENOTTY; 3221 break; 3222 } 3223 } 3224 return (retval); 3225} 3226 3227uint32_t 3228ctl_get_initindex(struct ctl_nexus *nexus) 3229{ 3230 return (nexus->initid + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3231} 3232 3233int 3234ctl_lun_map_init(struct ctl_port *port) 3235{ 3236 struct ctl_softc *softc = control_softc; 3237 struct ctl_lun *lun; 3238 uint32_t i; 3239 3240 if (port->lun_map == NULL) 3241 port->lun_map = malloc(sizeof(uint32_t) * CTL_MAX_LUNS, 3242 M_CTL, M_NOWAIT); 3243 if (port->lun_map == NULL) 3244 return (ENOMEM); 3245 for (i = 0; i < CTL_MAX_LUNS; i++) 3246 port->lun_map[i] = UINT32_MAX; 3247 if (port->status & CTL_PORT_STATUS_ONLINE) { 3248 if (port->lun_disable != NULL) { 3249 STAILQ_FOREACH(lun, &softc->lun_list, links) 3250 port->lun_disable(port->targ_lun_arg, lun->lun); 3251 } 3252 ctl_isc_announce_port(port); 3253 } 3254 return (0); 3255} 3256 3257int 3258ctl_lun_map_deinit(struct ctl_port *port) 3259{ 3260 struct ctl_softc *softc = control_softc; 3261 struct ctl_lun *lun; 3262 3263 if (port->lun_map == NULL) 3264 return (0); 3265 free(port->lun_map, M_CTL); 3266 port->lun_map = NULL; 3267 if (port->status & CTL_PORT_STATUS_ONLINE) { 3268 if (port->lun_enable != NULL) { 3269 STAILQ_FOREACH(lun, &softc->lun_list, links) 3270 port->lun_enable(port->targ_lun_arg, lun->lun); 3271 } 3272 ctl_isc_announce_port(port); 3273 } 3274 return (0); 3275} 3276 3277int 3278ctl_lun_map_set(struct ctl_port *port, uint32_t plun, uint32_t glun) 3279{ 3280 int status; 3281 uint32_t old; 3282 3283 if (port->lun_map == NULL) { 3284 status = ctl_lun_map_init(port); 3285 if (status != 0) 3286 return (status); 3287 } 3288 old = port->lun_map[plun]; 3289 port->lun_map[plun] = glun; 3290 if ((port->status & CTL_PORT_STATUS_ONLINE) && old >= CTL_MAX_LUNS) { 3291 if (port->lun_enable != NULL) 3292 port->lun_enable(port->targ_lun_arg, plun); 3293 ctl_isc_announce_port(port); 3294 } 3295 return (0); 3296} 3297 3298int 3299ctl_lun_map_unset(struct ctl_port *port, uint32_t plun) 3300{ 3301 uint32_t old; 3302 3303 if (port->lun_map == NULL) 3304 return (0); 3305 old = port->lun_map[plun]; 3306 port->lun_map[plun] = UINT32_MAX; 3307 if ((port->status & CTL_PORT_STATUS_ONLINE) && old < CTL_MAX_LUNS) { 3308 if (port->lun_disable != NULL) 3309 port->lun_disable(port->targ_lun_arg, plun); 3310 ctl_isc_announce_port(port); 3311 } 3312 return (0); 3313} 3314 3315uint32_t 3316ctl_lun_map_from_port(struct ctl_port *port, uint32_t lun_id) 3317{ 3318 3319 if (port == NULL) 3320 return (UINT32_MAX); 3321 if (port->lun_map == NULL || lun_id >= CTL_MAX_LUNS) 3322 return (lun_id); 3323 return (port->lun_map[lun_id]); 3324} 3325 3326uint32_t 3327ctl_lun_map_to_port(struct ctl_port *port, uint32_t lun_id) 3328{ 3329 uint32_t i; 3330 3331 if (port == NULL) 3332 return (UINT32_MAX); 3333 if (port->lun_map == NULL) 3334 return (lun_id); 3335 for (i = 0; i < CTL_MAX_LUNS; i++) { 3336 if (port->lun_map[i] == lun_id) 3337 return (i); 3338 } 3339 return (UINT32_MAX); 3340} 3341 3342static struct ctl_port * 3343ctl_io_port(struct ctl_io_hdr *io_hdr) 3344{ 3345 3346 return (control_softc->ctl_ports[io_hdr->nexus.targ_port]); 3347} 3348 3349int 3350ctl_ffz(uint32_t *mask, uint32_t first, uint32_t last) 3351{ 3352 int i; 3353 3354 for (i = first; i < last; i++) { 3355 if ((mask[i / 32] & (1 << (i % 32))) == 0) 3356 return (i); 3357 } 3358 return (-1); 3359} 3360 3361int 3362ctl_set_mask(uint32_t *mask, uint32_t bit) 3363{ 3364 uint32_t chunk, piece; 3365 3366 chunk = bit >> 5; 3367 piece = bit % (sizeof(uint32_t) * 8); 3368 3369 if ((mask[chunk] & (1 << piece)) != 0) 3370 return (-1); 3371 else 3372 mask[chunk] |= (1 << piece); 3373 3374 return (0); 3375} 3376 3377int 3378ctl_clear_mask(uint32_t *mask, uint32_t bit) 3379{ 3380 uint32_t chunk, piece; 3381 3382 chunk = bit >> 5; 3383 piece = bit % (sizeof(uint32_t) * 8); 3384 3385 if ((mask[chunk] & (1 << piece)) == 0) 3386 return (-1); 3387 else 3388 mask[chunk] &= ~(1 << piece); 3389 3390 return (0); 3391} 3392 3393int 3394ctl_is_set(uint32_t *mask, uint32_t bit) 3395{ 3396 uint32_t chunk, piece; 3397 3398 chunk = bit >> 5; 3399 piece = bit % (sizeof(uint32_t) * 8); 3400 3401 if ((mask[chunk] & (1 << piece)) == 0) 3402 return (0); 3403 else 3404 return (1); 3405} 3406 3407static uint64_t 3408ctl_get_prkey(struct ctl_lun *lun, uint32_t residx) 3409{ 3410 uint64_t *t; 3411 3412 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3413 if (t == NULL) 3414 return (0); 3415 return (t[residx % CTL_MAX_INIT_PER_PORT]); 3416} 3417 3418static void 3419ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx) 3420{ 3421 uint64_t *t; 3422 3423 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3424 if (t == NULL) 3425 return; 3426 t[residx % CTL_MAX_INIT_PER_PORT] = 0; 3427} 3428 3429static void 3430ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx) 3431{ 3432 uint64_t *p; 3433 u_int i; 3434 3435 i = residx/CTL_MAX_INIT_PER_PORT; 3436 if (lun->pr_keys[i] != NULL) 3437 return; 3438 mtx_unlock(&lun->lun_lock); 3439 p = malloc(sizeof(uint64_t) * CTL_MAX_INIT_PER_PORT, M_CTL, 3440 M_WAITOK | M_ZERO); 3441 mtx_lock(&lun->lun_lock); 3442 if (lun->pr_keys[i] == NULL) 3443 lun->pr_keys[i] = p; 3444 else 3445 free(p, M_CTL); 3446} 3447 3448static void 3449ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key) 3450{ 3451 uint64_t *t; 3452 3453 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3454 KASSERT(t != NULL, ("prkey %d is not allocated", residx)); 3455 t[residx % CTL_MAX_INIT_PER_PORT] = key; 3456} 3457 3458/* 3459 * ctl_softc, pool_name, total_ctl_io are passed in. 3460 * npool is passed out. 3461 */ 3462int 3463ctl_pool_create(struct ctl_softc *ctl_softc, const char *pool_name, 3464 uint32_t total_ctl_io, void **npool) 3465{ 3466#ifdef IO_POOLS 3467 struct ctl_io_pool *pool; 3468 3469 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3470 M_NOWAIT | M_ZERO); 3471 if (pool == NULL) 3472 return (ENOMEM); 3473 3474 snprintf(pool->name, sizeof(pool->name), "CTL IO %s", pool_name); 3475 pool->ctl_softc = ctl_softc; 3476 pool->zone = uma_zsecond_create(pool->name, NULL, 3477 NULL, NULL, NULL, ctl_softc->io_zone); 3478 /* uma_prealloc(pool->zone, total_ctl_io); */ 3479 3480 *npool = pool; 3481#else 3482 *npool = ctl_softc->io_zone; 3483#endif 3484 return (0); 3485} 3486 3487void 3488ctl_pool_free(struct ctl_io_pool *pool) 3489{ 3490 3491 if (pool == NULL) 3492 return; 3493 3494#ifdef IO_POOLS 3495 uma_zdestroy(pool->zone); 3496 free(pool, M_CTL); 3497#endif 3498} 3499 3500union ctl_io * 3501ctl_alloc_io(void *pool_ref) 3502{ 3503 union ctl_io *io; 3504#ifdef IO_POOLS 3505 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3506 3507 io = uma_zalloc(pool->zone, M_WAITOK); 3508#else 3509 io = uma_zalloc((uma_zone_t)pool_ref, M_WAITOK); 3510#endif 3511 if (io != NULL) 3512 io->io_hdr.pool = pool_ref; 3513 return (io); 3514} 3515 3516union ctl_io * 3517ctl_alloc_io_nowait(void *pool_ref) 3518{ 3519 union ctl_io *io; 3520#ifdef IO_POOLS 3521 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3522 3523 io = uma_zalloc(pool->zone, M_NOWAIT); 3524#else 3525 io = uma_zalloc((uma_zone_t)pool_ref, M_NOWAIT); 3526#endif 3527 if (io != NULL) 3528 io->io_hdr.pool = pool_ref; 3529 return (io); 3530} 3531 3532void 3533ctl_free_io(union ctl_io *io) 3534{ 3535#ifdef IO_POOLS 3536 struct ctl_io_pool *pool; 3537#endif 3538 3539 if (io == NULL) 3540 return; 3541 3542#ifdef IO_POOLS 3543 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3544 uma_zfree(pool->zone, io); 3545#else 3546 uma_zfree((uma_zone_t)io->io_hdr.pool, io); 3547#endif 3548} 3549 3550void 3551ctl_zero_io(union ctl_io *io) 3552{ 3553 void *pool_ref; 3554 3555 if (io == NULL) 3556 return; 3557 3558 /* 3559 * May need to preserve linked list pointers at some point too. 3560 */ 3561 pool_ref = io->io_hdr.pool; 3562 memset(io, 0, sizeof(*io)); 3563 io->io_hdr.pool = pool_ref; 3564} 3565 3566/* 3567 * This routine is currently used for internal copies of ctl_ios that need 3568 * to persist for some reason after we've already returned status to the 3569 * FETD. (Thus the flag set.) 3570 * 3571 * XXX XXX 3572 * Note that this makes a blind copy of all fields in the ctl_io, except 3573 * for the pool reference. This includes any memory that has been 3574 * allocated! That memory will no longer be valid after done has been 3575 * called, so this would be VERY DANGEROUS for command that actually does 3576 * any reads or writes. Right now (11/7/2005), this is only used for immediate 3577 * start and stop commands, which don't transfer any data, so this is not a 3578 * problem. If it is used for anything else, the caller would also need to 3579 * allocate data buffer space and this routine would need to be modified to 3580 * copy the data buffer(s) as well. 3581 */ 3582void 3583ctl_copy_io(union ctl_io *src, union ctl_io *dest) 3584{ 3585 void *pool_ref; 3586 3587 if ((src == NULL) 3588 || (dest == NULL)) 3589 return; 3590 3591 /* 3592 * May need to preserve linked list pointers at some point too. 3593 */ 3594 pool_ref = dest->io_hdr.pool; 3595 3596 memcpy(dest, src, MIN(sizeof(*src), sizeof(*dest))); 3597 3598 dest->io_hdr.pool = pool_ref; 3599 /* 3600 * We need to know that this is an internal copy, and doesn't need 3601 * to get passed back to the FETD that allocated it. 3602 */ 3603 dest->io_hdr.flags |= CTL_FLAG_INT_COPY; 3604} 3605 3606int 3607ctl_expand_number(const char *buf, uint64_t *num) 3608{ 3609 char *endptr; 3610 uint64_t number; 3611 unsigned shift; 3612 3613 number = strtoq(buf, &endptr, 0); 3614 3615 switch (tolower((unsigned char)*endptr)) { 3616 case 'e': 3617 shift = 60; 3618 break; 3619 case 'p': 3620 shift = 50; 3621 break; 3622 case 't': 3623 shift = 40; 3624 break; 3625 case 'g': 3626 shift = 30; 3627 break; 3628 case 'm': 3629 shift = 20; 3630 break; 3631 case 'k': 3632 shift = 10; 3633 break; 3634 case 'b': 3635 case '\0': /* No unit. */ 3636 *num = number; 3637 return (0); 3638 default: 3639 /* Unrecognized unit. */ 3640 return (-1); 3641 } 3642 3643 if ((number << shift) >> shift != number) { 3644 /* Overflow */ 3645 return (-1); 3646 } 3647 *num = number << shift; 3648 return (0); 3649} 3650 3651 3652/* 3653 * This routine could be used in the future to load default and/or saved 3654 * mode page parameters for a particuar lun. 3655 */ 3656static int 3657ctl_init_page_index(struct ctl_lun *lun) 3658{ 3659 int i; 3660 struct ctl_page_index *page_index; 3661 const char *value; 3662 uint64_t ival; 3663 3664 memcpy(&lun->mode_pages.index, page_index_template, 3665 sizeof(page_index_template)); 3666 3667 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 3668 3669 page_index = &lun->mode_pages.index[i]; 3670 /* 3671 * If this is a disk-only mode page, there's no point in 3672 * setting it up. For some pages, we have to have some 3673 * basic information about the disk in order to calculate the 3674 * mode page data. 3675 */ 3676 if ((lun->be_lun->lun_type != T_DIRECT) 3677 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 3678 continue; 3679 3680 switch (page_index->page_code & SMPH_PC_MASK) { 3681 case SMS_RW_ERROR_RECOVERY_PAGE: { 3682 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3683 panic("subpage is incorrect!"); 3684 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT], 3685 &rw_er_page_default, 3686 sizeof(rw_er_page_default)); 3687 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CHANGEABLE], 3688 &rw_er_page_changeable, 3689 sizeof(rw_er_page_changeable)); 3690 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_DEFAULT], 3691 &rw_er_page_default, 3692 sizeof(rw_er_page_default)); 3693 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_SAVED], 3694 &rw_er_page_default, 3695 sizeof(rw_er_page_default)); 3696 page_index->page_data = 3697 (uint8_t *)lun->mode_pages.rw_er_page; 3698 break; 3699 } 3700 case SMS_FORMAT_DEVICE_PAGE: { 3701 struct scsi_format_page *format_page; 3702 3703 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3704 panic("subpage is incorrect!"); 3705 3706 /* 3707 * Sectors per track are set above. Bytes per 3708 * sector need to be set here on a per-LUN basis. 3709 */ 3710 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 3711 &format_page_default, 3712 sizeof(format_page_default)); 3713 memcpy(&lun->mode_pages.format_page[ 3714 CTL_PAGE_CHANGEABLE], &format_page_changeable, 3715 sizeof(format_page_changeable)); 3716 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 3717 &format_page_default, 3718 sizeof(format_page_default)); 3719 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 3720 &format_page_default, 3721 sizeof(format_page_default)); 3722 3723 format_page = &lun->mode_pages.format_page[ 3724 CTL_PAGE_CURRENT]; 3725 scsi_ulto2b(lun->be_lun->blocksize, 3726 format_page->bytes_per_sector); 3727 3728 format_page = &lun->mode_pages.format_page[ 3729 CTL_PAGE_DEFAULT]; 3730 scsi_ulto2b(lun->be_lun->blocksize, 3731 format_page->bytes_per_sector); 3732 3733 format_page = &lun->mode_pages.format_page[ 3734 CTL_PAGE_SAVED]; 3735 scsi_ulto2b(lun->be_lun->blocksize, 3736 format_page->bytes_per_sector); 3737 3738 page_index->page_data = 3739 (uint8_t *)lun->mode_pages.format_page; 3740 break; 3741 } 3742 case SMS_RIGID_DISK_PAGE: { 3743 struct scsi_rigid_disk_page *rigid_disk_page; 3744 uint32_t sectors_per_cylinder; 3745 uint64_t cylinders; 3746#ifndef __XSCALE__ 3747 int shift; 3748#endif /* !__XSCALE__ */ 3749 3750 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3751 panic("invalid subpage value %d", 3752 page_index->subpage); 3753 3754 /* 3755 * Rotation rate and sectors per track are set 3756 * above. We calculate the cylinders here based on 3757 * capacity. Due to the number of heads and 3758 * sectors per track we're using, smaller arrays 3759 * may turn out to have 0 cylinders. Linux and 3760 * FreeBSD don't pay attention to these mode pages 3761 * to figure out capacity, but Solaris does. It 3762 * seems to deal with 0 cylinders just fine, and 3763 * works out a fake geometry based on the capacity. 3764 */ 3765 memcpy(&lun->mode_pages.rigid_disk_page[ 3766 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 3767 sizeof(rigid_disk_page_default)); 3768 memcpy(&lun->mode_pages.rigid_disk_page[ 3769 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 3770 sizeof(rigid_disk_page_changeable)); 3771 3772 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 3773 CTL_DEFAULT_HEADS; 3774 3775 /* 3776 * The divide method here will be more accurate, 3777 * probably, but results in floating point being 3778 * used in the kernel on i386 (__udivdi3()). On the 3779 * XScale, though, __udivdi3() is implemented in 3780 * software. 3781 * 3782 * The shift method for cylinder calculation is 3783 * accurate if sectors_per_cylinder is a power of 3784 * 2. Otherwise it might be slightly off -- you 3785 * might have a bit of a truncation problem. 3786 */ 3787#ifdef __XSCALE__ 3788 cylinders = (lun->be_lun->maxlba + 1) / 3789 sectors_per_cylinder; 3790#else 3791 for (shift = 31; shift > 0; shift--) { 3792 if (sectors_per_cylinder & (1 << shift)) 3793 break; 3794 } 3795 cylinders = (lun->be_lun->maxlba + 1) >> shift; 3796#endif 3797 3798 /* 3799 * We've basically got 3 bytes, or 24 bits for the 3800 * cylinder size in the mode page. If we're over, 3801 * just round down to 2^24. 3802 */ 3803 if (cylinders > 0xffffff) 3804 cylinders = 0xffffff; 3805 3806 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 3807 CTL_PAGE_DEFAULT]; 3808 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 3809 3810 if ((value = ctl_get_opt(&lun->be_lun->options, 3811 "rpm")) != NULL) { 3812 scsi_ulto2b(strtol(value, NULL, 0), 3813 rigid_disk_page->rotation_rate); 3814 } 3815 3816 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_CURRENT], 3817 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 3818 sizeof(rigid_disk_page_default)); 3819 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_SAVED], 3820 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 3821 sizeof(rigid_disk_page_default)); 3822 3823 page_index->page_data = 3824 (uint8_t *)lun->mode_pages.rigid_disk_page; 3825 break; 3826 } 3827 case SMS_CACHING_PAGE: { 3828 struct scsi_caching_page *caching_page; 3829 3830 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3831 panic("invalid subpage value %d", 3832 page_index->subpage); 3833 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 3834 &caching_page_default, 3835 sizeof(caching_page_default)); 3836 memcpy(&lun->mode_pages.caching_page[ 3837 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 3838 sizeof(caching_page_changeable)); 3839 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 3840 &caching_page_default, 3841 sizeof(caching_page_default)); 3842 caching_page = &lun->mode_pages.caching_page[ 3843 CTL_PAGE_SAVED]; 3844 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 3845 if (value != NULL && strcmp(value, "off") == 0) 3846 caching_page->flags1 &= ~SCP_WCE; 3847 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 3848 if (value != NULL && strcmp(value, "off") == 0) 3849 caching_page->flags1 |= SCP_RCD; 3850 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 3851 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 3852 sizeof(caching_page_default)); 3853 page_index->page_data = 3854 (uint8_t *)lun->mode_pages.caching_page; 3855 break; 3856 } 3857 case SMS_CONTROL_MODE_PAGE: { 3858 struct scsi_control_page *control_page; 3859 3860 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3861 panic("invalid subpage value %d", 3862 page_index->subpage); 3863 3864 memcpy(&lun->mode_pages.control_page[CTL_PAGE_DEFAULT], 3865 &control_page_default, 3866 sizeof(control_page_default)); 3867 memcpy(&lun->mode_pages.control_page[ 3868 CTL_PAGE_CHANGEABLE], &control_page_changeable, 3869 sizeof(control_page_changeable)); 3870 memcpy(&lun->mode_pages.control_page[CTL_PAGE_SAVED], 3871 &control_page_default, 3872 sizeof(control_page_default)); 3873 control_page = &lun->mode_pages.control_page[ 3874 CTL_PAGE_SAVED]; 3875 value = ctl_get_opt(&lun->be_lun->options, "reordering"); 3876 if (value != NULL && strcmp(value, "unrestricted") == 0) { 3877 control_page->queue_flags &= ~SCP_QUEUE_ALG_MASK; 3878 control_page->queue_flags |= SCP_QUEUE_ALG_UNRESTRICTED; 3879 } 3880 memcpy(&lun->mode_pages.control_page[CTL_PAGE_CURRENT], 3881 &lun->mode_pages.control_page[CTL_PAGE_SAVED], 3882 sizeof(control_page_default)); 3883 page_index->page_data = 3884 (uint8_t *)lun->mode_pages.control_page; 3885 break; 3886 3887 } 3888 case SMS_INFO_EXCEPTIONS_PAGE: { 3889 switch (page_index->subpage) { 3890 case SMS_SUBPAGE_PAGE_0: 3891 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_CURRENT], 3892 &ie_page_default, 3893 sizeof(ie_page_default)); 3894 memcpy(&lun->mode_pages.ie_page[ 3895 CTL_PAGE_CHANGEABLE], &ie_page_changeable, 3896 sizeof(ie_page_changeable)); 3897 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_DEFAULT], 3898 &ie_page_default, 3899 sizeof(ie_page_default)); 3900 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_SAVED], 3901 &ie_page_default, 3902 sizeof(ie_page_default)); 3903 page_index->page_data = 3904 (uint8_t *)lun->mode_pages.ie_page; 3905 break; 3906 case 0x02: { 3907 struct ctl_logical_block_provisioning_page *page; 3908 3909 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_DEFAULT], 3910 &lbp_page_default, 3911 sizeof(lbp_page_default)); 3912 memcpy(&lun->mode_pages.lbp_page[ 3913 CTL_PAGE_CHANGEABLE], &lbp_page_changeable, 3914 sizeof(lbp_page_changeable)); 3915 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 3916 &lbp_page_default, 3917 sizeof(lbp_page_default)); 3918 page = &lun->mode_pages.lbp_page[CTL_PAGE_SAVED]; 3919 value = ctl_get_opt(&lun->be_lun->options, 3920 "avail-threshold"); 3921 if (value != NULL && 3922 ctl_expand_number(value, &ival) == 0) { 3923 page->descr[0].flags |= SLBPPD_ENABLED | 3924 SLBPPD_ARMING_DEC; 3925 if (lun->be_lun->blocksize) 3926 ival /= lun->be_lun->blocksize; 3927 else 3928 ival /= 512; 3929 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 3930 page->descr[0].count); 3931 } 3932 value = ctl_get_opt(&lun->be_lun->options, 3933 "used-threshold"); 3934 if (value != NULL && 3935 ctl_expand_number(value, &ival) == 0) { 3936 page->descr[1].flags |= SLBPPD_ENABLED | 3937 SLBPPD_ARMING_INC; 3938 if (lun->be_lun->blocksize) 3939 ival /= lun->be_lun->blocksize; 3940 else 3941 ival /= 512; 3942 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 3943 page->descr[1].count); 3944 } 3945 value = ctl_get_opt(&lun->be_lun->options, 3946 "pool-avail-threshold"); 3947 if (value != NULL && 3948 ctl_expand_number(value, &ival) == 0) { 3949 page->descr[2].flags |= SLBPPD_ENABLED | 3950 SLBPPD_ARMING_DEC; 3951 if (lun->be_lun->blocksize) 3952 ival /= lun->be_lun->blocksize; 3953 else 3954 ival /= 512; 3955 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 3956 page->descr[2].count); 3957 } 3958 value = ctl_get_opt(&lun->be_lun->options, 3959 "pool-used-threshold"); 3960 if (value != NULL && 3961 ctl_expand_number(value, &ival) == 0) { 3962 page->descr[3].flags |= SLBPPD_ENABLED | 3963 SLBPPD_ARMING_INC; 3964 if (lun->be_lun->blocksize) 3965 ival /= lun->be_lun->blocksize; 3966 else 3967 ival /= 512; 3968 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 3969 page->descr[3].count); 3970 } 3971 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_CURRENT], 3972 &lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 3973 sizeof(lbp_page_default)); 3974 page_index->page_data = 3975 (uint8_t *)lun->mode_pages.lbp_page; 3976 }} 3977 break; 3978 } 3979 case SMS_VENDOR_SPECIFIC_PAGE:{ 3980 switch (page_index->subpage) { 3981 case DBGCNF_SUBPAGE_CODE: { 3982 struct copan_debugconf_subpage *current_page, 3983 *saved_page; 3984 3985 memcpy(&lun->mode_pages.debugconf_subpage[ 3986 CTL_PAGE_CURRENT], 3987 &debugconf_page_default, 3988 sizeof(debugconf_page_default)); 3989 memcpy(&lun->mode_pages.debugconf_subpage[ 3990 CTL_PAGE_CHANGEABLE], 3991 &debugconf_page_changeable, 3992 sizeof(debugconf_page_changeable)); 3993 memcpy(&lun->mode_pages.debugconf_subpage[ 3994 CTL_PAGE_DEFAULT], 3995 &debugconf_page_default, 3996 sizeof(debugconf_page_default)); 3997 memcpy(&lun->mode_pages.debugconf_subpage[ 3998 CTL_PAGE_SAVED], 3999 &debugconf_page_default, 4000 sizeof(debugconf_page_default)); 4001 page_index->page_data = 4002 (uint8_t *)lun->mode_pages.debugconf_subpage; 4003 4004 current_page = (struct copan_debugconf_subpage *) 4005 (page_index->page_data + 4006 (page_index->page_len * 4007 CTL_PAGE_CURRENT)); 4008 saved_page = (struct copan_debugconf_subpage *) 4009 (page_index->page_data + 4010 (page_index->page_len * 4011 CTL_PAGE_SAVED)); 4012 break; 4013 } 4014 default: 4015 panic("invalid subpage value %d", 4016 page_index->subpage); 4017 break; 4018 } 4019 break; 4020 } 4021 default: 4022 panic("invalid page value %d", 4023 page_index->page_code & SMPH_PC_MASK); 4024 break; 4025 } 4026 } 4027 4028 return (CTL_RETVAL_COMPLETE); 4029} 4030 4031static int 4032ctl_init_log_page_index(struct ctl_lun *lun) 4033{ 4034 struct ctl_page_index *page_index; 4035 int i, j, k, prev; 4036 4037 memcpy(&lun->log_pages.index, log_page_index_template, 4038 sizeof(log_page_index_template)); 4039 4040 prev = -1; 4041 for (i = 0, j = 0, k = 0; i < CTL_NUM_LOG_PAGES; i++) { 4042 4043 page_index = &lun->log_pages.index[i]; 4044 /* 4045 * If this is a disk-only mode page, there's no point in 4046 * setting it up. For some pages, we have to have some 4047 * basic information about the disk in order to calculate the 4048 * mode page data. 4049 */ 4050 if ((lun->be_lun->lun_type != T_DIRECT) 4051 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 4052 continue; 4053 4054 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING && 4055 lun->backend->lun_attr == NULL) 4056 continue; 4057 4058 if (page_index->page_code != prev) { 4059 lun->log_pages.pages_page[j] = page_index->page_code; 4060 prev = page_index->page_code; 4061 j++; 4062 } 4063 lun->log_pages.subpages_page[k*2] = page_index->page_code; 4064 lun->log_pages.subpages_page[k*2+1] = page_index->subpage; 4065 k++; 4066 } 4067 lun->log_pages.index[0].page_data = &lun->log_pages.pages_page[0]; 4068 lun->log_pages.index[0].page_len = j; 4069 lun->log_pages.index[1].page_data = &lun->log_pages.subpages_page[0]; 4070 lun->log_pages.index[1].page_len = k * 2; 4071 lun->log_pages.index[2].page_data = &lun->log_pages.lbp_page[0]; 4072 lun->log_pages.index[2].page_len = 12*CTL_NUM_LBP_PARAMS; 4073 lun->log_pages.index[3].page_data = (uint8_t *)&lun->log_pages.stat_page; 4074 lun->log_pages.index[3].page_len = sizeof(lun->log_pages.stat_page); 4075 4076 return (CTL_RETVAL_COMPLETE); 4077} 4078 4079static int 4080hex2bin(const char *str, uint8_t *buf, int buf_size) 4081{ 4082 int i; 4083 u_char c; 4084 4085 memset(buf, 0, buf_size); 4086 while (isspace(str[0])) 4087 str++; 4088 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) 4089 str += 2; 4090 buf_size *= 2; 4091 for (i = 0; str[i] != 0 && i < buf_size; i++) { 4092 c = str[i]; 4093 if (isdigit(c)) 4094 c -= '0'; 4095 else if (isalpha(c)) 4096 c -= isupper(c) ? 'A' - 10 : 'a' - 10; 4097 else 4098 break; 4099 if (c >= 16) 4100 break; 4101 if ((i & 1) == 0) 4102 buf[i / 2] |= (c << 4); 4103 else 4104 buf[i / 2] |= c; 4105 } 4106 return ((i + 1) / 2); 4107} 4108 4109/* 4110 * LUN allocation. 4111 * 4112 * Requirements: 4113 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4114 * wants us to allocate the LUN and he can block. 4115 * - ctl_softc is always set 4116 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4117 * 4118 * Returns 0 for success, non-zero (errno) for failure. 4119 */ 4120static int 4121ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4122 struct ctl_be_lun *const be_lun) 4123{ 4124 struct ctl_lun *nlun, *lun; 4125 struct scsi_vpd_id_descriptor *desc; 4126 struct scsi_vpd_id_t10 *t10id; 4127 const char *eui, *naa, *scsiname, *vendor; 4128 int lun_number, i, lun_malloced; 4129 int devidlen, idlen1, idlen2 = 0, len; 4130 4131 if (be_lun == NULL) 4132 return (EINVAL); 4133 4134 /* 4135 * We currently only support Direct Access or Processor LUN types. 4136 */ 4137 switch (be_lun->lun_type) { 4138 case T_DIRECT: 4139 break; 4140 case T_PROCESSOR: 4141 break; 4142 case T_SEQUENTIAL: 4143 case T_CHANGER: 4144 default: 4145 be_lun->lun_config_status(be_lun->be_lun, 4146 CTL_LUN_CONFIG_FAILURE); 4147 break; 4148 } 4149 if (ctl_lun == NULL) { 4150 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4151 lun_malloced = 1; 4152 } else { 4153 lun_malloced = 0; 4154 lun = ctl_lun; 4155 } 4156 4157 memset(lun, 0, sizeof(*lun)); 4158 if (lun_malloced) 4159 lun->flags = CTL_LUN_MALLOCED; 4160 4161 /* Generate LUN ID. */ 4162 devidlen = max(CTL_DEVID_MIN_LEN, 4163 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4164 idlen1 = sizeof(*t10id) + devidlen; 4165 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4166 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4167 if (scsiname != NULL) { 4168 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4169 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4170 } 4171 eui = ctl_get_opt(&be_lun->options, "eui"); 4172 if (eui != NULL) { 4173 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4174 } 4175 naa = ctl_get_opt(&be_lun->options, "naa"); 4176 if (naa != NULL) { 4177 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4178 } 4179 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4180 M_CTL, M_WAITOK | M_ZERO); 4181 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4182 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4183 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4184 desc->length = idlen1; 4185 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4186 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4187 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4188 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4189 } else { 4190 strncpy(t10id->vendor, vendor, 4191 min(sizeof(t10id->vendor), strlen(vendor))); 4192 } 4193 strncpy((char *)t10id->vendor_spec_id, 4194 (char *)be_lun->device_id, devidlen); 4195 if (scsiname != NULL) { 4196 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4197 desc->length); 4198 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4199 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4200 SVPD_ID_TYPE_SCSI_NAME; 4201 desc->length = idlen2; 4202 strlcpy(desc->identifier, scsiname, idlen2); 4203 } 4204 if (eui != NULL) { 4205 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4206 desc->length); 4207 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4208 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4209 SVPD_ID_TYPE_EUI64; 4210 desc->length = hex2bin(eui, desc->identifier, 16); 4211 desc->length = desc->length > 12 ? 16 : 4212 (desc->length > 8 ? 12 : 8); 4213 len -= 16 - desc->length; 4214 } 4215 if (naa != NULL) { 4216 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4217 desc->length); 4218 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4219 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4220 SVPD_ID_TYPE_NAA; 4221 desc->length = hex2bin(naa, desc->identifier, 16); 4222 desc->length = desc->length > 8 ? 16 : 8; 4223 len -= 16 - desc->length; 4224 } 4225 lun->lun_devid->len = len; 4226 4227 mtx_lock(&ctl_softc->ctl_lock); 4228 /* 4229 * See if the caller requested a particular LUN number. If so, see 4230 * if it is available. Otherwise, allocate the first available LUN. 4231 */ 4232 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4233 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4234 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4235 mtx_unlock(&ctl_softc->ctl_lock); 4236 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4237 printf("ctl: requested LUN ID %d is higher " 4238 "than CTL_MAX_LUNS - 1 (%d)\n", 4239 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4240 } else { 4241 /* 4242 * XXX KDM return an error, or just assign 4243 * another LUN ID in this case?? 4244 */ 4245 printf("ctl: requested LUN ID %d is already " 4246 "in use\n", be_lun->req_lun_id); 4247 } 4248 if (lun->flags & CTL_LUN_MALLOCED) 4249 free(lun, M_CTL); 4250 be_lun->lun_config_status(be_lun->be_lun, 4251 CTL_LUN_CONFIG_FAILURE); 4252 return (ENOSPC); 4253 } 4254 lun_number = be_lun->req_lun_id; 4255 } else { 4256 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, 0, CTL_MAX_LUNS); 4257 if (lun_number == -1) { 4258 mtx_unlock(&ctl_softc->ctl_lock); 4259 printf("ctl: can't allocate LUN, out of LUNs\n"); 4260 if (lun->flags & CTL_LUN_MALLOCED) 4261 free(lun, M_CTL); 4262 be_lun->lun_config_status(be_lun->be_lun, 4263 CTL_LUN_CONFIG_FAILURE); 4264 return (ENOSPC); 4265 } 4266 } 4267 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4268 4269 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4270 lun->lun = lun_number; 4271 lun->be_lun = be_lun; 4272 /* 4273 * The processor LUN is always enabled. Disk LUNs come on line 4274 * disabled, and must be enabled by the backend. 4275 */ 4276 lun->flags |= CTL_LUN_DISABLED; 4277 lun->backend = be_lun->be; 4278 be_lun->ctl_lun = lun; 4279 be_lun->lun_id = lun_number; 4280 atomic_add_int(&be_lun->be->num_luns, 1); 4281 if (be_lun->flags & CTL_LUN_FLAG_OFFLINE) 4282 lun->flags |= CTL_LUN_OFFLINE; 4283 4284 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4285 lun->flags |= CTL_LUN_STOPPED; 4286 4287 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4288 lun->flags |= CTL_LUN_INOPERABLE; 4289 4290 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4291 lun->flags |= CTL_LUN_PRIMARY_SC; 4292 4293 lun->ctl_softc = ctl_softc; 4294#ifdef CTL_TIME_IO 4295 lun->last_busy = getsbinuptime(); 4296#endif 4297 TAILQ_INIT(&lun->ooa_queue); 4298 TAILQ_INIT(&lun->blocked_queue); 4299 STAILQ_INIT(&lun->error_list); 4300 ctl_tpc_lun_init(lun); 4301 4302 /* 4303 * Initialize the mode and log page index. 4304 */ 4305 ctl_init_page_index(lun); 4306 ctl_init_log_page_index(lun); 4307 4308 /* 4309 * Now, before we insert this lun on the lun list, set the lun 4310 * inventory changed UA for all other luns. 4311 */ 4312 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4313 mtx_lock(&nlun->lun_lock); 4314 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4315 mtx_unlock(&nlun->lun_lock); 4316 } 4317 4318 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4319 4320 ctl_softc->ctl_luns[lun_number] = lun; 4321 4322 ctl_softc->num_luns++; 4323 4324 /* Setup statistics gathering */ 4325 lun->stats.device_type = be_lun->lun_type; 4326 lun->stats.lun_number = lun_number; 4327 if (lun->stats.device_type == T_DIRECT) 4328 lun->stats.blocksize = be_lun->blocksize; 4329 else 4330 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4331 for (i = 0;i < CTL_MAX_PORTS;i++) 4332 lun->stats.ports[i].targ_port = i; 4333 4334 mtx_unlock(&ctl_softc->ctl_lock); 4335 4336 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4337 return (0); 4338} 4339 4340/* 4341 * Delete a LUN. 4342 * Assumptions: 4343 * - LUN has already been marked invalid and any pending I/O has been taken 4344 * care of. 4345 */ 4346static int 4347ctl_free_lun(struct ctl_lun *lun) 4348{ 4349 struct ctl_softc *softc; 4350 struct ctl_lun *nlun; 4351 int i; 4352 4353 softc = lun->ctl_softc; 4354 4355 mtx_assert(&softc->ctl_lock, MA_OWNED); 4356 4357 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4358 4359 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4360 4361 softc->ctl_luns[lun->lun] = NULL; 4362 4363 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4364 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4365 4366 softc->num_luns--; 4367 4368 /* 4369 * Tell the backend to free resources, if this LUN has a backend. 4370 */ 4371 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4372 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4373 4374 ctl_tpc_lun_shutdown(lun); 4375 mtx_destroy(&lun->lun_lock); 4376 free(lun->lun_devid, M_CTL); 4377 for (i = 0; i < CTL_MAX_PORTS; i++) 4378 free(lun->pending_ua[i], M_CTL); 4379 for (i = 0; i < CTL_MAX_PORTS; i++) 4380 free(lun->pr_keys[i], M_CTL); 4381 free(lun->write_buffer, M_CTL); 4382 if (lun->flags & CTL_LUN_MALLOCED) 4383 free(lun, M_CTL); 4384 4385 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4386 mtx_lock(&nlun->lun_lock); 4387 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4388 mtx_unlock(&nlun->lun_lock); 4389 } 4390 4391 return (0); 4392} 4393 4394static void 4395ctl_create_lun(struct ctl_be_lun *be_lun) 4396{ 4397 struct ctl_softc *softc; 4398 4399 softc = control_softc; 4400 4401 /* 4402 * ctl_alloc_lun() should handle all potential failure cases. 4403 */ 4404 ctl_alloc_lun(softc, NULL, be_lun); 4405} 4406 4407int 4408ctl_add_lun(struct ctl_be_lun *be_lun) 4409{ 4410 struct ctl_softc *softc = control_softc; 4411 4412 mtx_lock(&softc->ctl_lock); 4413 STAILQ_INSERT_TAIL(&softc->pending_lun_queue, be_lun, links); 4414 mtx_unlock(&softc->ctl_lock); 4415 wakeup(&softc->pending_lun_queue); 4416 4417 return (0); 4418} 4419 4420int 4421ctl_enable_lun(struct ctl_be_lun *be_lun) 4422{ 4423 struct ctl_softc *softc; 4424 struct ctl_port *port, *nport; 4425 struct ctl_lun *lun; 4426 int retval; 4427 4428 lun = (struct ctl_lun *)be_lun->ctl_lun; 4429 softc = lun->ctl_softc; 4430 4431 mtx_lock(&softc->ctl_lock); 4432 mtx_lock(&lun->lun_lock); 4433 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4434 /* 4435 * eh? Why did we get called if the LUN is already 4436 * enabled? 4437 */ 4438 mtx_unlock(&lun->lun_lock); 4439 mtx_unlock(&softc->ctl_lock); 4440 return (0); 4441 } 4442 lun->flags &= ~CTL_LUN_DISABLED; 4443 mtx_unlock(&lun->lun_lock); 4444 4445 for (port = STAILQ_FIRST(&softc->port_list); port != NULL; port = nport) { 4446 nport = STAILQ_NEXT(port, links); 4447 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4448 port->lun_map != NULL || port->lun_enable == NULL) 4449 continue; 4450 4451 /* 4452 * Drop the lock while we call the FETD's enable routine. 4453 * This can lead to a callback into CTL (at least in the 4454 * case of the internal initiator frontend. 4455 */ 4456 mtx_unlock(&softc->ctl_lock); 4457 retval = port->lun_enable(port->targ_lun_arg, lun->lun); 4458 mtx_lock(&softc->ctl_lock); 4459 if (retval != 0) { 4460 printf("%s: FETD %s port %d returned error " 4461 "%d for lun_enable on lun %jd\n", 4462 __func__, port->port_name, port->targ_port, 4463 retval, (intmax_t)lun->lun); 4464 } 4465 } 4466 4467 mtx_unlock(&softc->ctl_lock); 4468 ctl_isc_announce_lun(lun); 4469 4470 return (0); 4471} 4472 4473int 4474ctl_disable_lun(struct ctl_be_lun *be_lun) 4475{ 4476 struct ctl_softc *softc; 4477 struct ctl_port *port; 4478 struct ctl_lun *lun; 4479 int retval; 4480 4481 lun = (struct ctl_lun *)be_lun->ctl_lun; 4482 softc = lun->ctl_softc; 4483 4484 mtx_lock(&softc->ctl_lock); 4485 mtx_lock(&lun->lun_lock); 4486 if (lun->flags & CTL_LUN_DISABLED) { 4487 mtx_unlock(&lun->lun_lock); 4488 mtx_unlock(&softc->ctl_lock); 4489 return (0); 4490 } 4491 lun->flags |= CTL_LUN_DISABLED; 4492 mtx_unlock(&lun->lun_lock); 4493 4494 STAILQ_FOREACH(port, &softc->port_list, links) { 4495 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4496 port->lun_map != NULL || port->lun_disable == NULL) 4497 continue; 4498 4499 /* 4500 * Drop the lock before we call the frontend's disable 4501 * routine, to avoid lock order reversals. 4502 * 4503 * XXX KDM what happens if the frontend list changes while 4504 * we're traversing it? It's unlikely, but should be handled. 4505 */ 4506 mtx_unlock(&softc->ctl_lock); 4507 retval = port->lun_disable(port->targ_lun_arg, lun->lun); 4508 mtx_lock(&softc->ctl_lock); 4509 if (retval != 0) { 4510 printf("%s: FETD %s port %d returned error " 4511 "%d for lun_disable on lun %jd\n", 4512 __func__, port->port_name, port->targ_port, 4513 retval, (intmax_t)lun->lun); 4514 } 4515 } 4516 4517 mtx_unlock(&softc->ctl_lock); 4518 ctl_isc_announce_lun(lun); 4519 4520 return (0); 4521} 4522 4523int 4524ctl_start_lun(struct ctl_be_lun *be_lun) 4525{ 4526 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4527 4528 mtx_lock(&lun->lun_lock); 4529 lun->flags &= ~CTL_LUN_STOPPED; 4530 mtx_unlock(&lun->lun_lock); 4531 return (0); 4532} 4533 4534int 4535ctl_stop_lun(struct ctl_be_lun *be_lun) 4536{ 4537 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4538 4539 mtx_lock(&lun->lun_lock); 4540 lun->flags |= CTL_LUN_STOPPED; 4541 mtx_unlock(&lun->lun_lock); 4542 return (0); 4543} 4544 4545int 4546ctl_lun_offline(struct ctl_be_lun *be_lun) 4547{ 4548 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4549 4550 mtx_lock(&lun->lun_lock); 4551 lun->flags |= CTL_LUN_OFFLINE; 4552 mtx_unlock(&lun->lun_lock); 4553 return (0); 4554} 4555 4556int 4557ctl_lun_online(struct ctl_be_lun *be_lun) 4558{ 4559 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4560 4561 mtx_lock(&lun->lun_lock); 4562 lun->flags &= ~CTL_LUN_OFFLINE; 4563 mtx_unlock(&lun->lun_lock); 4564 return (0); 4565} 4566 4567int 4568ctl_lun_primary(struct ctl_be_lun *be_lun) 4569{ 4570 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4571 4572 mtx_lock(&lun->lun_lock); 4573 lun->flags |= CTL_LUN_PRIMARY_SC; 4574 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4575 mtx_unlock(&lun->lun_lock); 4576 ctl_isc_announce_lun(lun); 4577 return (0); 4578} 4579 4580int 4581ctl_lun_secondary(struct ctl_be_lun *be_lun) 4582{ 4583 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4584 4585 mtx_lock(&lun->lun_lock); 4586 lun->flags &= ~CTL_LUN_PRIMARY_SC; 4587 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4588 mtx_unlock(&lun->lun_lock); 4589 ctl_isc_announce_lun(lun); 4590 return (0); 4591} 4592 4593int 4594ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4595{ 4596 struct ctl_softc *softc; 4597 struct ctl_lun *lun; 4598 4599 lun = (struct ctl_lun *)be_lun->ctl_lun; 4600 softc = lun->ctl_softc; 4601 4602 mtx_lock(&lun->lun_lock); 4603 4604 /* 4605 * The LUN needs to be disabled before it can be marked invalid. 4606 */ 4607 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4608 mtx_unlock(&lun->lun_lock); 4609 return (-1); 4610 } 4611 /* 4612 * Mark the LUN invalid. 4613 */ 4614 lun->flags |= CTL_LUN_INVALID; 4615 4616 /* 4617 * If there is nothing in the OOA queue, go ahead and free the LUN. 4618 * If we have something in the OOA queue, we'll free it when the 4619 * last I/O completes. 4620 */ 4621 if (TAILQ_EMPTY(&lun->ooa_queue)) { 4622 mtx_unlock(&lun->lun_lock); 4623 mtx_lock(&softc->ctl_lock); 4624 ctl_free_lun(lun); 4625 mtx_unlock(&softc->ctl_lock); 4626 } else 4627 mtx_unlock(&lun->lun_lock); 4628 4629 return (0); 4630} 4631 4632int 4633ctl_lun_inoperable(struct ctl_be_lun *be_lun) 4634{ 4635 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4636 4637 mtx_lock(&lun->lun_lock); 4638 lun->flags |= CTL_LUN_INOPERABLE; 4639 mtx_unlock(&lun->lun_lock); 4640 return (0); 4641} 4642 4643int 4644ctl_lun_operable(struct ctl_be_lun *be_lun) 4645{ 4646 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4647 4648 mtx_lock(&lun->lun_lock); 4649 lun->flags &= ~CTL_LUN_INOPERABLE; 4650 mtx_unlock(&lun->lun_lock); 4651 return (0); 4652} 4653 4654void 4655ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 4656{ 4657 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4658 union ctl_ha_msg msg; 4659 4660 mtx_lock(&lun->lun_lock); 4661 ctl_est_ua_all(lun, -1, CTL_UA_CAPACITY_CHANGED); 4662 mtx_unlock(&lun->lun_lock); 4663 if (lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 4664 /* Send msg to other side. */ 4665 bzero(&msg.ua, sizeof(msg.ua)); 4666 msg.hdr.msg_type = CTL_MSG_UA; 4667 msg.hdr.nexus.initid = -1; 4668 msg.hdr.nexus.targ_port = -1; 4669 msg.hdr.nexus.targ_lun = lun->lun; 4670 msg.hdr.nexus.targ_mapped_lun = lun->lun; 4671 msg.ua.ua_all = 1; 4672 msg.ua.ua_set = 1; 4673 msg.ua.ua_type = CTL_UA_CAPACITY_CHANGED; 4674 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 4675 M_WAITOK); 4676 } 4677} 4678 4679/* 4680 * Backend "memory move is complete" callback for requests that never 4681 * make it down to say RAIDCore's configuration code. 4682 */ 4683int 4684ctl_config_move_done(union ctl_io *io) 4685{ 4686 int retval; 4687 4688 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 4689 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI, 4690 ("Config I/O type isn't CTL_IO_SCSI (%d)!", io->io_hdr.io_type)); 4691 4692 if ((io->io_hdr.port_status != 0) && 4693 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 4694 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 4695 /* 4696 * For hardware error sense keys, the sense key 4697 * specific value is defined to be a retry count, 4698 * but we use it to pass back an internal FETD 4699 * error code. XXX KDM Hopefully the FETD is only 4700 * using 16 bits for an error code, since that's 4701 * all the space we have in the sks field. 4702 */ 4703 ctl_set_internal_failure(&io->scsiio, 4704 /*sks_valid*/ 1, 4705 /*retry_count*/ 4706 io->io_hdr.port_status); 4707 } 4708 4709 if (ctl_debug & CTL_DEBUG_CDB_DATA) 4710 ctl_data_print(io); 4711 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) || 4712 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 4713 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) || 4714 ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 4715 /* 4716 * XXX KDM just assuming a single pointer here, and not a 4717 * S/G list. If we start using S/G lists for config data, 4718 * we'll need to know how to clean them up here as well. 4719 */ 4720 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 4721 free(io->scsiio.kern_data_ptr, M_CTL); 4722 ctl_done(io); 4723 retval = CTL_RETVAL_COMPLETE; 4724 } else { 4725 /* 4726 * XXX KDM now we need to continue data movement. Some 4727 * options: 4728 * - call ctl_scsiio() again? We don't do this for data 4729 * writes, because for those at least we know ahead of 4730 * time where the write will go and how long it is. For 4731 * config writes, though, that information is largely 4732 * contained within the write itself, thus we need to 4733 * parse out the data again. 4734 * 4735 * - Call some other function once the data is in? 4736 */ 4737 4738 /* 4739 * XXX KDM call ctl_scsiio() again for now, and check flag 4740 * bits to see whether we're allocated or not. 4741 */ 4742 retval = ctl_scsiio(&io->scsiio); 4743 } 4744 return (retval); 4745} 4746 4747/* 4748 * This gets called by a backend driver when it is done with a 4749 * data_submit method. 4750 */ 4751void 4752ctl_data_submit_done(union ctl_io *io) 4753{ 4754 /* 4755 * If the IO_CONT flag is set, we need to call the supplied 4756 * function to continue processing the I/O, instead of completing 4757 * the I/O just yet. 4758 * 4759 * If there is an error, though, we don't want to keep processing. 4760 * Instead, just send status back to the initiator. 4761 */ 4762 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 4763 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 4764 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 4765 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 4766 io->scsiio.io_cont(io); 4767 return; 4768 } 4769 ctl_done(io); 4770} 4771 4772/* 4773 * This gets called by a backend driver when it is done with a 4774 * configuration write. 4775 */ 4776void 4777ctl_config_write_done(union ctl_io *io) 4778{ 4779 uint8_t *buf; 4780 4781 /* 4782 * If the IO_CONT flag is set, we need to call the supplied 4783 * function to continue processing the I/O, instead of completing 4784 * the I/O just yet. 4785 * 4786 * If there is an error, though, we don't want to keep processing. 4787 * Instead, just send status back to the initiator. 4788 */ 4789 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 4790 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 4791 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 4792 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 4793 io->scsiio.io_cont(io); 4794 return; 4795 } 4796 /* 4797 * Since a configuration write can be done for commands that actually 4798 * have data allocated, like write buffer, and commands that have 4799 * no data, like start/stop unit, we need to check here. 4800 */ 4801 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 4802 buf = io->scsiio.kern_data_ptr; 4803 else 4804 buf = NULL; 4805 ctl_done(io); 4806 if (buf) 4807 free(buf, M_CTL); 4808} 4809 4810void 4811ctl_config_read_done(union ctl_io *io) 4812{ 4813 uint8_t *buf; 4814 4815 /* 4816 * If there is some error -- we are done, skip data transfer. 4817 */ 4818 if ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0 || 4819 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 4820 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) { 4821 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 4822 buf = io->scsiio.kern_data_ptr; 4823 else 4824 buf = NULL; 4825 ctl_done(io); 4826 if (buf) 4827 free(buf, M_CTL); 4828 return; 4829 } 4830 4831 /* 4832 * If the IO_CONT flag is set, we need to call the supplied 4833 * function to continue processing the I/O, instead of completing 4834 * the I/O just yet. 4835 */ 4836 if (io->io_hdr.flags & CTL_FLAG_IO_CONT) { 4837 io->scsiio.io_cont(io); 4838 return; 4839 } 4840 4841 ctl_datamove(io); 4842} 4843 4844/* 4845 * SCSI release command. 4846 */ 4847int 4848ctl_scsi_release(struct ctl_scsiio *ctsio) 4849{ 4850 int length, longid, thirdparty_id, resv_id; 4851 struct ctl_lun *lun; 4852 uint32_t residx; 4853 4854 length = 0; 4855 resv_id = 0; 4856 4857 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 4858 4859 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 4860 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 4861 4862 switch (ctsio->cdb[0]) { 4863 case RELEASE_10: { 4864 struct scsi_release_10 *cdb; 4865 4866 cdb = (struct scsi_release_10 *)ctsio->cdb; 4867 4868 if (cdb->byte2 & SR10_LONGID) 4869 longid = 1; 4870 else 4871 thirdparty_id = cdb->thirdparty_id; 4872 4873 resv_id = cdb->resv_id; 4874 length = scsi_2btoul(cdb->length); 4875 break; 4876 } 4877 } 4878 4879 4880 /* 4881 * XXX KDM right now, we only support LUN reservation. We don't 4882 * support 3rd party reservations, or extent reservations, which 4883 * might actually need the parameter list. If we've gotten this 4884 * far, we've got a LUN reservation. Anything else got kicked out 4885 * above. So, according to SPC, ignore the length. 4886 */ 4887 length = 0; 4888 4889 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 4890 && (length > 0)) { 4891 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 4892 ctsio->kern_data_len = length; 4893 ctsio->kern_total_len = length; 4894 ctsio->kern_data_resid = 0; 4895 ctsio->kern_rel_offset = 0; 4896 ctsio->kern_sg_entries = 0; 4897 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 4898 ctsio->be_move_done = ctl_config_move_done; 4899 ctl_datamove((union ctl_io *)ctsio); 4900 4901 return (CTL_RETVAL_COMPLETE); 4902 } 4903 4904 if (length > 0) 4905 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 4906 4907 mtx_lock(&lun->lun_lock); 4908 4909 /* 4910 * According to SPC, it is not an error for an intiator to attempt 4911 * to release a reservation on a LUN that isn't reserved, or that 4912 * is reserved by another initiator. The reservation can only be 4913 * released, though, by the initiator who made it or by one of 4914 * several reset type events. 4915 */ 4916 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 4917 lun->flags &= ~CTL_LUN_RESERVED; 4918 4919 mtx_unlock(&lun->lun_lock); 4920 4921 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 4922 free(ctsio->kern_data_ptr, M_CTL); 4923 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 4924 } 4925 4926 ctl_set_success(ctsio); 4927 ctl_done((union ctl_io *)ctsio); 4928 return (CTL_RETVAL_COMPLETE); 4929} 4930 4931int 4932ctl_scsi_reserve(struct ctl_scsiio *ctsio) 4933{ 4934 int extent, thirdparty, longid; 4935 int resv_id, length; 4936 uint64_t thirdparty_id; 4937 struct ctl_lun *lun; 4938 uint32_t residx; 4939 4940 extent = 0; 4941 thirdparty = 0; 4942 longid = 0; 4943 resv_id = 0; 4944 length = 0; 4945 thirdparty_id = 0; 4946 4947 CTL_DEBUG_PRINT(("ctl_reserve\n")); 4948 4949 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 4950 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 4951 4952 switch (ctsio->cdb[0]) { 4953 case RESERVE_10: { 4954 struct scsi_reserve_10 *cdb; 4955 4956 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 4957 4958 if (cdb->byte2 & SR10_LONGID) 4959 longid = 1; 4960 else 4961 thirdparty_id = cdb->thirdparty_id; 4962 4963 resv_id = cdb->resv_id; 4964 length = scsi_2btoul(cdb->length); 4965 break; 4966 } 4967 } 4968 4969 /* 4970 * XXX KDM right now, we only support LUN reservation. We don't 4971 * support 3rd party reservations, or extent reservations, which 4972 * might actually need the parameter list. If we've gotten this 4973 * far, we've got a LUN reservation. Anything else got kicked out 4974 * above. So, according to SPC, ignore the length. 4975 */ 4976 length = 0; 4977 4978 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 4979 && (length > 0)) { 4980 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 4981 ctsio->kern_data_len = length; 4982 ctsio->kern_total_len = length; 4983 ctsio->kern_data_resid = 0; 4984 ctsio->kern_rel_offset = 0; 4985 ctsio->kern_sg_entries = 0; 4986 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 4987 ctsio->be_move_done = ctl_config_move_done; 4988 ctl_datamove((union ctl_io *)ctsio); 4989 4990 return (CTL_RETVAL_COMPLETE); 4991 } 4992 4993 if (length > 0) 4994 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 4995 4996 mtx_lock(&lun->lun_lock); 4997 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 4998 ctl_set_reservation_conflict(ctsio); 4999 goto bailout; 5000 } 5001 5002 lun->flags |= CTL_LUN_RESERVED; 5003 lun->res_idx = residx; 5004 5005 ctl_set_success(ctsio); 5006 5007bailout: 5008 mtx_unlock(&lun->lun_lock); 5009 5010 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5011 free(ctsio->kern_data_ptr, M_CTL); 5012 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5013 } 5014 5015 ctl_done((union ctl_io *)ctsio); 5016 return (CTL_RETVAL_COMPLETE); 5017} 5018 5019int 5020ctl_start_stop(struct ctl_scsiio *ctsio) 5021{ 5022 struct scsi_start_stop_unit *cdb; 5023 struct ctl_lun *lun; 5024 int retval; 5025 5026 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5027 5028 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5029 retval = 0; 5030 5031 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5032 5033 /* 5034 * XXX KDM 5035 * We don't support the immediate bit on a stop unit. In order to 5036 * do that, we would need to code up a way to know that a stop is 5037 * pending, and hold off any new commands until it completes, one 5038 * way or another. Then we could accept or reject those commands 5039 * depending on its status. We would almost need to do the reverse 5040 * of what we do below for an immediate start -- return the copy of 5041 * the ctl_io to the FETD with status to send to the host (and to 5042 * free the copy!) and then free the original I/O once the stop 5043 * actually completes. That way, the OOA queue mechanism can work 5044 * to block commands that shouldn't proceed. Another alternative 5045 * would be to put the copy in the queue in place of the original, 5046 * and return the original back to the caller. That could be 5047 * slightly safer.. 5048 */ 5049 if ((cdb->byte2 & SSS_IMMED) 5050 && ((cdb->how & SSS_START) == 0)) { 5051 ctl_set_invalid_field(ctsio, 5052 /*sks_valid*/ 1, 5053 /*command*/ 1, 5054 /*field*/ 1, 5055 /*bit_valid*/ 1, 5056 /*bit*/ 0); 5057 ctl_done((union ctl_io *)ctsio); 5058 return (CTL_RETVAL_COMPLETE); 5059 } 5060 5061 if ((lun->flags & CTL_LUN_PR_RESERVED) 5062 && ((cdb->how & SSS_START)==0)) { 5063 uint32_t residx; 5064 5065 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5066 if (ctl_get_prkey(lun, residx) == 0 5067 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5068 5069 ctl_set_reservation_conflict(ctsio); 5070 ctl_done((union ctl_io *)ctsio); 5071 return (CTL_RETVAL_COMPLETE); 5072 } 5073 } 5074 5075 /* 5076 * If there is no backend on this device, we can't start or stop 5077 * it. In theory we shouldn't get any start/stop commands in the 5078 * first place at this level if the LUN doesn't have a backend. 5079 * That should get stopped by the command decode code. 5080 */ 5081 if (lun->backend == NULL) { 5082 ctl_set_invalid_opcode(ctsio); 5083 ctl_done((union ctl_io *)ctsio); 5084 return (CTL_RETVAL_COMPLETE); 5085 } 5086 5087 /* 5088 * XXX KDM Copan-specific offline behavior. 5089 * Figure out a reasonable way to port this? 5090 */ 5091#ifdef NEEDTOPORT 5092 mtx_lock(&lun->lun_lock); 5093 5094 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5095 && (lun->flags & CTL_LUN_OFFLINE)) { 5096 /* 5097 * If the LUN is offline, and the on/offline bit isn't set, 5098 * reject the start or stop. Otherwise, let it through. 5099 */ 5100 mtx_unlock(&lun->lun_lock); 5101 ctl_set_lun_not_ready(ctsio); 5102 ctl_done((union ctl_io *)ctsio); 5103 } else { 5104 mtx_unlock(&lun->lun_lock); 5105#endif /* NEEDTOPORT */ 5106 /* 5107 * This could be a start or a stop when we're online, 5108 * or a stop/offline or start/online. A start or stop when 5109 * we're offline is covered in the case above. 5110 */ 5111 /* 5112 * In the non-immediate case, we send the request to 5113 * the backend and return status to the user when 5114 * it is done. 5115 * 5116 * In the immediate case, we allocate a new ctl_io 5117 * to hold a copy of the request, and send that to 5118 * the backend. We then set good status on the 5119 * user's request and return it immediately. 5120 */ 5121 if (cdb->byte2 & SSS_IMMED) { 5122 union ctl_io *new_io; 5123 5124 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5125 ctl_copy_io((union ctl_io *)ctsio, new_io); 5126 retval = lun->backend->config_write(new_io); 5127 ctl_set_success(ctsio); 5128 ctl_done((union ctl_io *)ctsio); 5129 } else { 5130 retval = lun->backend->config_write( 5131 (union ctl_io *)ctsio); 5132 } 5133#ifdef NEEDTOPORT 5134 } 5135#endif 5136 return (retval); 5137} 5138 5139/* 5140 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5141 * we don't really do anything with the LBA and length fields if the user 5142 * passes them in. Instead we'll just flush out the cache for the entire 5143 * LUN. 5144 */ 5145int 5146ctl_sync_cache(struct ctl_scsiio *ctsio) 5147{ 5148 struct ctl_lun *lun; 5149 struct ctl_softc *softc; 5150 struct ctl_lba_len_flags *lbalen; 5151 uint64_t starting_lba; 5152 uint32_t block_count; 5153 int retval; 5154 uint8_t byte2; 5155 5156 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5157 5158 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5159 softc = lun->ctl_softc; 5160 retval = 0; 5161 5162 switch (ctsio->cdb[0]) { 5163 case SYNCHRONIZE_CACHE: { 5164 struct scsi_sync_cache *cdb; 5165 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5166 5167 starting_lba = scsi_4btoul(cdb->begin_lba); 5168 block_count = scsi_2btoul(cdb->lb_count); 5169 byte2 = cdb->byte2; 5170 break; 5171 } 5172 case SYNCHRONIZE_CACHE_16: { 5173 struct scsi_sync_cache_16 *cdb; 5174 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5175 5176 starting_lba = scsi_8btou64(cdb->begin_lba); 5177 block_count = scsi_4btoul(cdb->lb_count); 5178 byte2 = cdb->byte2; 5179 break; 5180 } 5181 default: 5182 ctl_set_invalid_opcode(ctsio); 5183 ctl_done((union ctl_io *)ctsio); 5184 goto bailout; 5185 break; /* NOTREACHED */ 5186 } 5187 5188 /* 5189 * We check the LBA and length, but don't do anything with them. 5190 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5191 * get flushed. This check will just help satisfy anyone who wants 5192 * to see an error for an out of range LBA. 5193 */ 5194 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5195 ctl_set_lba_out_of_range(ctsio); 5196 ctl_done((union ctl_io *)ctsio); 5197 goto bailout; 5198 } 5199 5200 /* 5201 * If this LUN has no backend, we can't flush the cache anyway. 5202 */ 5203 if (lun->backend == NULL) { 5204 ctl_set_invalid_opcode(ctsio); 5205 ctl_done((union ctl_io *)ctsio); 5206 goto bailout; 5207 } 5208 5209 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5210 lbalen->lba = starting_lba; 5211 lbalen->len = block_count; 5212 lbalen->flags = byte2; 5213 5214 /* 5215 * Check to see whether we're configured to send the SYNCHRONIZE 5216 * CACHE command directly to the back end. 5217 */ 5218 mtx_lock(&lun->lun_lock); 5219 if ((softc->flags & CTL_FLAG_REAL_SYNC) 5220 && (++(lun->sync_count) >= lun->sync_interval)) { 5221 lun->sync_count = 0; 5222 mtx_unlock(&lun->lun_lock); 5223 retval = lun->backend->config_write((union ctl_io *)ctsio); 5224 } else { 5225 mtx_unlock(&lun->lun_lock); 5226 ctl_set_success(ctsio); 5227 ctl_done((union ctl_io *)ctsio); 5228 } 5229 5230bailout: 5231 5232 return (retval); 5233} 5234 5235int 5236ctl_format(struct ctl_scsiio *ctsio) 5237{ 5238 struct scsi_format *cdb; 5239 struct ctl_lun *lun; 5240 int length, defect_list_len; 5241 5242 CTL_DEBUG_PRINT(("ctl_format\n")); 5243 5244 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5245 5246 cdb = (struct scsi_format *)ctsio->cdb; 5247 5248 length = 0; 5249 if (cdb->byte2 & SF_FMTDATA) { 5250 if (cdb->byte2 & SF_LONGLIST) 5251 length = sizeof(struct scsi_format_header_long); 5252 else 5253 length = sizeof(struct scsi_format_header_short); 5254 } 5255 5256 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5257 && (length > 0)) { 5258 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5259 ctsio->kern_data_len = length; 5260 ctsio->kern_total_len = length; 5261 ctsio->kern_data_resid = 0; 5262 ctsio->kern_rel_offset = 0; 5263 ctsio->kern_sg_entries = 0; 5264 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5265 ctsio->be_move_done = ctl_config_move_done; 5266 ctl_datamove((union ctl_io *)ctsio); 5267 5268 return (CTL_RETVAL_COMPLETE); 5269 } 5270 5271 defect_list_len = 0; 5272 5273 if (cdb->byte2 & SF_FMTDATA) { 5274 if (cdb->byte2 & SF_LONGLIST) { 5275 struct scsi_format_header_long *header; 5276 5277 header = (struct scsi_format_header_long *) 5278 ctsio->kern_data_ptr; 5279 5280 defect_list_len = scsi_4btoul(header->defect_list_len); 5281 if (defect_list_len != 0) { 5282 ctl_set_invalid_field(ctsio, 5283 /*sks_valid*/ 1, 5284 /*command*/ 0, 5285 /*field*/ 2, 5286 /*bit_valid*/ 0, 5287 /*bit*/ 0); 5288 goto bailout; 5289 } 5290 } else { 5291 struct scsi_format_header_short *header; 5292 5293 header = (struct scsi_format_header_short *) 5294 ctsio->kern_data_ptr; 5295 5296 defect_list_len = scsi_2btoul(header->defect_list_len); 5297 if (defect_list_len != 0) { 5298 ctl_set_invalid_field(ctsio, 5299 /*sks_valid*/ 1, 5300 /*command*/ 0, 5301 /*field*/ 2, 5302 /*bit_valid*/ 0, 5303 /*bit*/ 0); 5304 goto bailout; 5305 } 5306 } 5307 } 5308 5309 /* 5310 * The format command will clear out the "Medium format corrupted" 5311 * status if set by the configuration code. That status is really 5312 * just a way to notify the host that we have lost the media, and 5313 * get them to issue a command that will basically make them think 5314 * they're blowing away the media. 5315 */ 5316 mtx_lock(&lun->lun_lock); 5317 lun->flags &= ~CTL_LUN_INOPERABLE; 5318 mtx_unlock(&lun->lun_lock); 5319 5320 ctl_set_success(ctsio); 5321bailout: 5322 5323 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5324 free(ctsio->kern_data_ptr, M_CTL); 5325 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5326 } 5327 5328 ctl_done((union ctl_io *)ctsio); 5329 return (CTL_RETVAL_COMPLETE); 5330} 5331 5332int 5333ctl_read_buffer(struct ctl_scsiio *ctsio) 5334{ 5335 struct scsi_read_buffer *cdb; 5336 struct ctl_lun *lun; 5337 int buffer_offset, len; 5338 static uint8_t descr[4]; 5339 static uint8_t echo_descr[4] = { 0 }; 5340 5341 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5342 5343 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5344 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5345 5346 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA && 5347 (cdb->byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5348 (cdb->byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5349 ctl_set_invalid_field(ctsio, 5350 /*sks_valid*/ 1, 5351 /*command*/ 1, 5352 /*field*/ 1, 5353 /*bit_valid*/ 1, 5354 /*bit*/ 4); 5355 ctl_done((union ctl_io *)ctsio); 5356 return (CTL_RETVAL_COMPLETE); 5357 } 5358 5359 len = scsi_3btoul(cdb->length); 5360 buffer_offset = scsi_3btoul(cdb->offset); 5361 5362 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5363 ctl_set_invalid_field(ctsio, 5364 /*sks_valid*/ 1, 5365 /*command*/ 1, 5366 /*field*/ 6, 5367 /*bit_valid*/ 0, 5368 /*bit*/ 0); 5369 ctl_done((union ctl_io *)ctsio); 5370 return (CTL_RETVAL_COMPLETE); 5371 } 5372 5373 if ((cdb->byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5374 descr[0] = 0; 5375 scsi_ulto3b(CTL_WRITE_BUFFER_SIZE, &descr[1]); 5376 ctsio->kern_data_ptr = descr; 5377 len = min(len, sizeof(descr)); 5378 } else if ((cdb->byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5379 ctsio->kern_data_ptr = echo_descr; 5380 len = min(len, sizeof(echo_descr)); 5381 } else { 5382 if (lun->write_buffer == NULL) { 5383 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5384 M_CTL, M_WAITOK); 5385 } 5386 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5387 } 5388 ctsio->kern_data_len = len; 5389 ctsio->kern_total_len = len; 5390 ctsio->kern_data_resid = 0; 5391 ctsio->kern_rel_offset = 0; 5392 ctsio->kern_sg_entries = 0; 5393 ctl_set_success(ctsio); 5394 ctsio->be_move_done = ctl_config_move_done; 5395 ctl_datamove((union ctl_io *)ctsio); 5396 return (CTL_RETVAL_COMPLETE); 5397} 5398 5399int 5400ctl_write_buffer(struct ctl_scsiio *ctsio) 5401{ 5402 struct scsi_write_buffer *cdb; 5403 struct ctl_lun *lun; 5404 int buffer_offset, len; 5405 5406 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5407 5408 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5409 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5410 5411 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5412 ctl_set_invalid_field(ctsio, 5413 /*sks_valid*/ 1, 5414 /*command*/ 1, 5415 /*field*/ 1, 5416 /*bit_valid*/ 1, 5417 /*bit*/ 4); 5418 ctl_done((union ctl_io *)ctsio); 5419 return (CTL_RETVAL_COMPLETE); 5420 } 5421 5422 len = scsi_3btoul(cdb->length); 5423 buffer_offset = scsi_3btoul(cdb->offset); 5424 5425 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5426 ctl_set_invalid_field(ctsio, 5427 /*sks_valid*/ 1, 5428 /*command*/ 1, 5429 /*field*/ 6, 5430 /*bit_valid*/ 0, 5431 /*bit*/ 0); 5432 ctl_done((union ctl_io *)ctsio); 5433 return (CTL_RETVAL_COMPLETE); 5434 } 5435 5436 /* 5437 * If we've got a kernel request that hasn't been malloced yet, 5438 * malloc it and tell the caller the data buffer is here. 5439 */ 5440 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5441 if (lun->write_buffer == NULL) { 5442 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5443 M_CTL, M_WAITOK); 5444 } 5445 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5446 ctsio->kern_data_len = len; 5447 ctsio->kern_total_len = len; 5448 ctsio->kern_data_resid = 0; 5449 ctsio->kern_rel_offset = 0; 5450 ctsio->kern_sg_entries = 0; 5451 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5452 ctsio->be_move_done = ctl_config_move_done; 5453 ctl_datamove((union ctl_io *)ctsio); 5454 5455 return (CTL_RETVAL_COMPLETE); 5456 } 5457 5458 ctl_set_success(ctsio); 5459 ctl_done((union ctl_io *)ctsio); 5460 return (CTL_RETVAL_COMPLETE); 5461} 5462 5463int 5464ctl_write_same(struct ctl_scsiio *ctsio) 5465{ 5466 struct ctl_lun *lun; 5467 struct ctl_lba_len_flags *lbalen; 5468 uint64_t lba; 5469 uint32_t num_blocks; 5470 int len, retval; 5471 uint8_t byte2; 5472 5473 retval = CTL_RETVAL_COMPLETE; 5474 5475 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5476 5477 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5478 5479 switch (ctsio->cdb[0]) { 5480 case WRITE_SAME_10: { 5481 struct scsi_write_same_10 *cdb; 5482 5483 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5484 5485 lba = scsi_4btoul(cdb->addr); 5486 num_blocks = scsi_2btoul(cdb->length); 5487 byte2 = cdb->byte2; 5488 break; 5489 } 5490 case WRITE_SAME_16: { 5491 struct scsi_write_same_16 *cdb; 5492 5493 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5494 5495 lba = scsi_8btou64(cdb->addr); 5496 num_blocks = scsi_4btoul(cdb->length); 5497 byte2 = cdb->byte2; 5498 break; 5499 } 5500 default: 5501 /* 5502 * We got a command we don't support. This shouldn't 5503 * happen, commands should be filtered out above us. 5504 */ 5505 ctl_set_invalid_opcode(ctsio); 5506 ctl_done((union ctl_io *)ctsio); 5507 5508 return (CTL_RETVAL_COMPLETE); 5509 break; /* NOTREACHED */ 5510 } 5511 5512 /* NDOB and ANCHOR flags can be used only together with UNMAP */ 5513 if ((byte2 & SWS_UNMAP) == 0 && 5514 (byte2 & (SWS_NDOB | SWS_ANCHOR)) != 0) { 5515 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5516 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5517 ctl_done((union ctl_io *)ctsio); 5518 return (CTL_RETVAL_COMPLETE); 5519 } 5520 5521 /* 5522 * The first check is to make sure we're in bounds, the second 5523 * check is to catch wrap-around problems. If the lba + num blocks 5524 * is less than the lba, then we've wrapped around and the block 5525 * range is invalid anyway. 5526 */ 5527 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5528 || ((lba + num_blocks) < lba)) { 5529 ctl_set_lba_out_of_range(ctsio); 5530 ctl_done((union ctl_io *)ctsio); 5531 return (CTL_RETVAL_COMPLETE); 5532 } 5533 5534 /* Zero number of blocks means "to the last logical block" */ 5535 if (num_blocks == 0) { 5536 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5537 ctl_set_invalid_field(ctsio, 5538 /*sks_valid*/ 0, 5539 /*command*/ 1, 5540 /*field*/ 0, 5541 /*bit_valid*/ 0, 5542 /*bit*/ 0); 5543 ctl_done((union ctl_io *)ctsio); 5544 return (CTL_RETVAL_COMPLETE); 5545 } 5546 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5547 } 5548 5549 len = lun->be_lun->blocksize; 5550 5551 /* 5552 * If we've got a kernel request that hasn't been malloced yet, 5553 * malloc it and tell the caller the data buffer is here. 5554 */ 5555 if ((byte2 & SWS_NDOB) == 0 && 5556 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5557 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5558 ctsio->kern_data_len = len; 5559 ctsio->kern_total_len = len; 5560 ctsio->kern_data_resid = 0; 5561 ctsio->kern_rel_offset = 0; 5562 ctsio->kern_sg_entries = 0; 5563 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5564 ctsio->be_move_done = ctl_config_move_done; 5565 ctl_datamove((union ctl_io *)ctsio); 5566 5567 return (CTL_RETVAL_COMPLETE); 5568 } 5569 5570 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5571 lbalen->lba = lba; 5572 lbalen->len = num_blocks; 5573 lbalen->flags = byte2; 5574 retval = lun->backend->config_write((union ctl_io *)ctsio); 5575 5576 return (retval); 5577} 5578 5579int 5580ctl_unmap(struct ctl_scsiio *ctsio) 5581{ 5582 struct ctl_lun *lun; 5583 struct scsi_unmap *cdb; 5584 struct ctl_ptr_len_flags *ptrlen; 5585 struct scsi_unmap_header *hdr; 5586 struct scsi_unmap_desc *buf, *end, *endnz, *range; 5587 uint64_t lba; 5588 uint32_t num_blocks; 5589 int len, retval; 5590 uint8_t byte2; 5591 5592 retval = CTL_RETVAL_COMPLETE; 5593 5594 CTL_DEBUG_PRINT(("ctl_unmap\n")); 5595 5596 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5597 cdb = (struct scsi_unmap *)ctsio->cdb; 5598 5599 len = scsi_2btoul(cdb->length); 5600 byte2 = cdb->byte2; 5601 5602 /* 5603 * If we've got a kernel request that hasn't been malloced yet, 5604 * malloc it and tell the caller the data buffer is here. 5605 */ 5606 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5607 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5608 ctsio->kern_data_len = len; 5609 ctsio->kern_total_len = len; 5610 ctsio->kern_data_resid = 0; 5611 ctsio->kern_rel_offset = 0; 5612 ctsio->kern_sg_entries = 0; 5613 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5614 ctsio->be_move_done = ctl_config_move_done; 5615 ctl_datamove((union ctl_io *)ctsio); 5616 5617 return (CTL_RETVAL_COMPLETE); 5618 } 5619 5620 len = ctsio->kern_total_len - ctsio->kern_data_resid; 5621 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 5622 if (len < sizeof (*hdr) || 5623 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 5624 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 5625 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 5626 ctl_set_invalid_field(ctsio, 5627 /*sks_valid*/ 0, 5628 /*command*/ 0, 5629 /*field*/ 0, 5630 /*bit_valid*/ 0, 5631 /*bit*/ 0); 5632 goto done; 5633 } 5634 len = scsi_2btoul(hdr->desc_length); 5635 buf = (struct scsi_unmap_desc *)(hdr + 1); 5636 end = buf + len / sizeof(*buf); 5637 5638 endnz = buf; 5639 for (range = buf; range < end; range++) { 5640 lba = scsi_8btou64(range->lba); 5641 num_blocks = scsi_4btoul(range->length); 5642 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5643 || ((lba + num_blocks) < lba)) { 5644 ctl_set_lba_out_of_range(ctsio); 5645 ctl_done((union ctl_io *)ctsio); 5646 return (CTL_RETVAL_COMPLETE); 5647 } 5648 if (num_blocks != 0) 5649 endnz = range + 1; 5650 } 5651 5652 /* 5653 * Block backend can not handle zero last range. 5654 * Filter it out and return if there is nothing left. 5655 */ 5656 len = (uint8_t *)endnz - (uint8_t *)buf; 5657 if (len == 0) { 5658 ctl_set_success(ctsio); 5659 goto done; 5660 } 5661 5662 mtx_lock(&lun->lun_lock); 5663 ptrlen = (struct ctl_ptr_len_flags *) 5664 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5665 ptrlen->ptr = (void *)buf; 5666 ptrlen->len = len; 5667 ptrlen->flags = byte2; 5668 ctl_check_blocked(lun); 5669 mtx_unlock(&lun->lun_lock); 5670 5671 retval = lun->backend->config_write((union ctl_io *)ctsio); 5672 return (retval); 5673 5674done: 5675 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5676 free(ctsio->kern_data_ptr, M_CTL); 5677 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5678 } 5679 ctl_done((union ctl_io *)ctsio); 5680 return (CTL_RETVAL_COMPLETE); 5681} 5682 5683/* 5684 * Note that this function currently doesn't actually do anything inside 5685 * CTL to enforce things if the DQue bit is turned on. 5686 * 5687 * Also note that this function can't be used in the default case, because 5688 * the DQue bit isn't set in the changeable mask for the control mode page 5689 * anyway. This is just here as an example for how to implement a page 5690 * handler, and a placeholder in case we want to allow the user to turn 5691 * tagged queueing on and off. 5692 * 5693 * The D_SENSE bit handling is functional, however, and will turn 5694 * descriptor sense on and off for a given LUN. 5695 */ 5696int 5697ctl_control_page_handler(struct ctl_scsiio *ctsio, 5698 struct ctl_page_index *page_index, uint8_t *page_ptr) 5699{ 5700 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 5701 struct ctl_lun *lun; 5702 int set_ua; 5703 uint32_t initidx; 5704 5705 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5706 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5707 set_ua = 0; 5708 5709 user_cp = (struct scsi_control_page *)page_ptr; 5710 current_cp = (struct scsi_control_page *) 5711 (page_index->page_data + (page_index->page_len * 5712 CTL_PAGE_CURRENT)); 5713 saved_cp = (struct scsi_control_page *) 5714 (page_index->page_data + (page_index->page_len * 5715 CTL_PAGE_SAVED)); 5716 5717 mtx_lock(&lun->lun_lock); 5718 if (((current_cp->rlec & SCP_DSENSE) == 0) 5719 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 5720 /* 5721 * Descriptor sense is currently turned off and the user 5722 * wants to turn it on. 5723 */ 5724 current_cp->rlec |= SCP_DSENSE; 5725 saved_cp->rlec |= SCP_DSENSE; 5726 lun->flags |= CTL_LUN_SENSE_DESC; 5727 set_ua = 1; 5728 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 5729 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 5730 /* 5731 * Descriptor sense is currently turned on, and the user 5732 * wants to turn it off. 5733 */ 5734 current_cp->rlec &= ~SCP_DSENSE; 5735 saved_cp->rlec &= ~SCP_DSENSE; 5736 lun->flags &= ~CTL_LUN_SENSE_DESC; 5737 set_ua = 1; 5738 } 5739 if ((current_cp->queue_flags & SCP_QUEUE_ALG_MASK) != 5740 (user_cp->queue_flags & SCP_QUEUE_ALG_MASK)) { 5741 current_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 5742 current_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 5743 saved_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 5744 saved_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 5745 set_ua = 1; 5746 } 5747 if ((current_cp->eca_and_aen & SCP_SWP) != 5748 (user_cp->eca_and_aen & SCP_SWP)) { 5749 current_cp->eca_and_aen &= ~SCP_SWP; 5750 current_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 5751 saved_cp->eca_and_aen &= ~SCP_SWP; 5752 saved_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 5753 set_ua = 1; 5754 } 5755 if (set_ua != 0) 5756 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 5757 mtx_unlock(&lun->lun_lock); 5758 5759 return (0); 5760} 5761 5762int 5763ctl_caching_sp_handler(struct ctl_scsiio *ctsio, 5764 struct ctl_page_index *page_index, uint8_t *page_ptr) 5765{ 5766 struct scsi_caching_page *current_cp, *saved_cp, *user_cp; 5767 struct ctl_lun *lun; 5768 int set_ua; 5769 uint32_t initidx; 5770 5771 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5772 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5773 set_ua = 0; 5774 5775 user_cp = (struct scsi_caching_page *)page_ptr; 5776 current_cp = (struct scsi_caching_page *) 5777 (page_index->page_data + (page_index->page_len * 5778 CTL_PAGE_CURRENT)); 5779 saved_cp = (struct scsi_caching_page *) 5780 (page_index->page_data + (page_index->page_len * 5781 CTL_PAGE_SAVED)); 5782 5783 mtx_lock(&lun->lun_lock); 5784 if ((current_cp->flags1 & (SCP_WCE | SCP_RCD)) != 5785 (user_cp->flags1 & (SCP_WCE | SCP_RCD))) { 5786 current_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 5787 current_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 5788 saved_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 5789 saved_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 5790 set_ua = 1; 5791 } 5792 if (set_ua != 0) 5793 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 5794 mtx_unlock(&lun->lun_lock); 5795 5796 return (0); 5797} 5798 5799int 5800ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 5801 struct ctl_page_index *page_index, 5802 uint8_t *page_ptr) 5803{ 5804 uint8_t *c; 5805 int i; 5806 5807 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 5808 ctl_time_io_secs = 5809 (c[0] << 8) | 5810 (c[1] << 0) | 5811 0; 5812 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 5813 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 5814 printf("page data:"); 5815 for (i=0; i<8; i++) 5816 printf(" %.2x",page_ptr[i]); 5817 printf("\n"); 5818 return (0); 5819} 5820 5821int 5822ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 5823 struct ctl_page_index *page_index, 5824 int pc) 5825{ 5826 struct copan_debugconf_subpage *page; 5827 5828 page = (struct copan_debugconf_subpage *)page_index->page_data + 5829 (page_index->page_len * pc); 5830 5831 switch (pc) { 5832 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 5833 case SMS_PAGE_CTRL_DEFAULT >> 6: 5834 case SMS_PAGE_CTRL_SAVED >> 6: 5835 /* 5836 * We don't update the changable or default bits for this page. 5837 */ 5838 break; 5839 case SMS_PAGE_CTRL_CURRENT >> 6: 5840 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 5841 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 5842 break; 5843 default: 5844#ifdef NEEDTOPORT 5845 EPRINT(0, "Invalid PC %d!!", pc); 5846#endif /* NEEDTOPORT */ 5847 break; 5848 } 5849 return (0); 5850} 5851 5852 5853static int 5854ctl_do_mode_select(union ctl_io *io) 5855{ 5856 struct scsi_mode_page_header *page_header; 5857 struct ctl_page_index *page_index; 5858 struct ctl_scsiio *ctsio; 5859 int control_dev, page_len; 5860 int page_len_offset, page_len_size; 5861 union ctl_modepage_info *modepage_info; 5862 struct ctl_lun *lun; 5863 int *len_left, *len_used; 5864 int retval, i; 5865 5866 ctsio = &io->scsiio; 5867 page_index = NULL; 5868 page_len = 0; 5869 retval = CTL_RETVAL_COMPLETE; 5870 5871 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5872 5873 if (lun->be_lun->lun_type != T_DIRECT) 5874 control_dev = 1; 5875 else 5876 control_dev = 0; 5877 5878 modepage_info = (union ctl_modepage_info *) 5879 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 5880 len_left = &modepage_info->header.len_left; 5881 len_used = &modepage_info->header.len_used; 5882 5883do_next_page: 5884 5885 page_header = (struct scsi_mode_page_header *) 5886 (ctsio->kern_data_ptr + *len_used); 5887 5888 if (*len_left == 0) { 5889 free(ctsio->kern_data_ptr, M_CTL); 5890 ctl_set_success(ctsio); 5891 ctl_done((union ctl_io *)ctsio); 5892 return (CTL_RETVAL_COMPLETE); 5893 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 5894 5895 free(ctsio->kern_data_ptr, M_CTL); 5896 ctl_set_param_len_error(ctsio); 5897 ctl_done((union ctl_io *)ctsio); 5898 return (CTL_RETVAL_COMPLETE); 5899 5900 } else if ((page_header->page_code & SMPH_SPF) 5901 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 5902 5903 free(ctsio->kern_data_ptr, M_CTL); 5904 ctl_set_param_len_error(ctsio); 5905 ctl_done((union ctl_io *)ctsio); 5906 return (CTL_RETVAL_COMPLETE); 5907 } 5908 5909 5910 /* 5911 * XXX KDM should we do something with the block descriptor? 5912 */ 5913 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 5914 5915 if ((control_dev != 0) 5916 && (lun->mode_pages.index[i].page_flags & 5917 CTL_PAGE_FLAG_DISK_ONLY)) 5918 continue; 5919 5920 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 5921 (page_header->page_code & SMPH_PC_MASK)) 5922 continue; 5923 5924 /* 5925 * If neither page has a subpage code, then we've got a 5926 * match. 5927 */ 5928 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 5929 && ((page_header->page_code & SMPH_SPF) == 0)) { 5930 page_index = &lun->mode_pages.index[i]; 5931 page_len = page_header->page_length; 5932 break; 5933 } 5934 5935 /* 5936 * If both pages have subpages, then the subpage numbers 5937 * have to match. 5938 */ 5939 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 5940 && (page_header->page_code & SMPH_SPF)) { 5941 struct scsi_mode_page_header_sp *sph; 5942 5943 sph = (struct scsi_mode_page_header_sp *)page_header; 5944 5945 if (lun->mode_pages.index[i].subpage == 5946 sph->subpage) { 5947 page_index = &lun->mode_pages.index[i]; 5948 page_len = scsi_2btoul(sph->page_length); 5949 break; 5950 } 5951 } 5952 } 5953 5954 /* 5955 * If we couldn't find the page, or if we don't have a mode select 5956 * handler for it, send back an error to the user. 5957 */ 5958 if ((page_index == NULL) 5959 || (page_index->select_handler == NULL)) { 5960 ctl_set_invalid_field(ctsio, 5961 /*sks_valid*/ 1, 5962 /*command*/ 0, 5963 /*field*/ *len_used, 5964 /*bit_valid*/ 0, 5965 /*bit*/ 0); 5966 free(ctsio->kern_data_ptr, M_CTL); 5967 ctl_done((union ctl_io *)ctsio); 5968 return (CTL_RETVAL_COMPLETE); 5969 } 5970 5971 if (page_index->page_code & SMPH_SPF) { 5972 page_len_offset = 2; 5973 page_len_size = 2; 5974 } else { 5975 page_len_size = 1; 5976 page_len_offset = 1; 5977 } 5978 5979 /* 5980 * If the length the initiator gives us isn't the one we specify in 5981 * the mode page header, or if they didn't specify enough data in 5982 * the CDB to avoid truncating this page, kick out the request. 5983 */ 5984 if ((page_len != (page_index->page_len - page_len_offset - 5985 page_len_size)) 5986 || (*len_left < page_index->page_len)) { 5987 5988 5989 ctl_set_invalid_field(ctsio, 5990 /*sks_valid*/ 1, 5991 /*command*/ 0, 5992 /*field*/ *len_used + page_len_offset, 5993 /*bit_valid*/ 0, 5994 /*bit*/ 0); 5995 free(ctsio->kern_data_ptr, M_CTL); 5996 ctl_done((union ctl_io *)ctsio); 5997 return (CTL_RETVAL_COMPLETE); 5998 } 5999 6000 /* 6001 * Run through the mode page, checking to make sure that the bits 6002 * the user changed are actually legal for him to change. 6003 */ 6004 for (i = 0; i < page_index->page_len; i++) { 6005 uint8_t *user_byte, *change_mask, *current_byte; 6006 int bad_bit; 6007 int j; 6008 6009 user_byte = (uint8_t *)page_header + i; 6010 change_mask = page_index->page_data + 6011 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6012 current_byte = page_index->page_data + 6013 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6014 6015 /* 6016 * Check to see whether the user set any bits in this byte 6017 * that he is not allowed to set. 6018 */ 6019 if ((*user_byte & ~(*change_mask)) == 6020 (*current_byte & ~(*change_mask))) 6021 continue; 6022 6023 /* 6024 * Go through bit by bit to determine which one is illegal. 6025 */ 6026 bad_bit = 0; 6027 for (j = 7; j >= 0; j--) { 6028 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6029 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6030 bad_bit = i; 6031 break; 6032 } 6033 } 6034 ctl_set_invalid_field(ctsio, 6035 /*sks_valid*/ 1, 6036 /*command*/ 0, 6037 /*field*/ *len_used + i, 6038 /*bit_valid*/ 1, 6039 /*bit*/ bad_bit); 6040 free(ctsio->kern_data_ptr, M_CTL); 6041 ctl_done((union ctl_io *)ctsio); 6042 return (CTL_RETVAL_COMPLETE); 6043 } 6044 6045 /* 6046 * Decrement these before we call the page handler, since we may 6047 * end up getting called back one way or another before the handler 6048 * returns to this context. 6049 */ 6050 *len_left -= page_index->page_len; 6051 *len_used += page_index->page_len; 6052 6053 retval = page_index->select_handler(ctsio, page_index, 6054 (uint8_t *)page_header); 6055 6056 /* 6057 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6058 * wait until this queued command completes to finish processing 6059 * the mode page. If it returns anything other than 6060 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6061 * already set the sense information, freed the data pointer, and 6062 * completed the io for us. 6063 */ 6064 if (retval != CTL_RETVAL_COMPLETE) 6065 goto bailout_no_done; 6066 6067 /* 6068 * If the initiator sent us more than one page, parse the next one. 6069 */ 6070 if (*len_left > 0) 6071 goto do_next_page; 6072 6073 ctl_set_success(ctsio); 6074 free(ctsio->kern_data_ptr, M_CTL); 6075 ctl_done((union ctl_io *)ctsio); 6076 6077bailout_no_done: 6078 6079 return (CTL_RETVAL_COMPLETE); 6080 6081} 6082 6083int 6084ctl_mode_select(struct ctl_scsiio *ctsio) 6085{ 6086 int param_len, pf, sp; 6087 int header_size, bd_len; 6088 int len_left, len_used; 6089 struct ctl_page_index *page_index; 6090 struct ctl_lun *lun; 6091 int control_dev, page_len; 6092 union ctl_modepage_info *modepage_info; 6093 int retval; 6094 6095 pf = 0; 6096 sp = 0; 6097 page_len = 0; 6098 len_used = 0; 6099 len_left = 0; 6100 retval = 0; 6101 bd_len = 0; 6102 page_index = NULL; 6103 6104 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6105 6106 if (lun->be_lun->lun_type != T_DIRECT) 6107 control_dev = 1; 6108 else 6109 control_dev = 0; 6110 6111 switch (ctsio->cdb[0]) { 6112 case MODE_SELECT_6: { 6113 struct scsi_mode_select_6 *cdb; 6114 6115 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6116 6117 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6118 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6119 6120 param_len = cdb->length; 6121 header_size = sizeof(struct scsi_mode_header_6); 6122 break; 6123 } 6124 case MODE_SELECT_10: { 6125 struct scsi_mode_select_10 *cdb; 6126 6127 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6128 6129 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6130 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6131 6132 param_len = scsi_2btoul(cdb->length); 6133 header_size = sizeof(struct scsi_mode_header_10); 6134 break; 6135 } 6136 default: 6137 ctl_set_invalid_opcode(ctsio); 6138 ctl_done((union ctl_io *)ctsio); 6139 return (CTL_RETVAL_COMPLETE); 6140 break; /* NOTREACHED */ 6141 } 6142 6143 /* 6144 * From SPC-3: 6145 * "A parameter list length of zero indicates that the Data-Out Buffer 6146 * shall be empty. This condition shall not be considered as an error." 6147 */ 6148 if (param_len == 0) { 6149 ctl_set_success(ctsio); 6150 ctl_done((union ctl_io *)ctsio); 6151 return (CTL_RETVAL_COMPLETE); 6152 } 6153 6154 /* 6155 * Since we'll hit this the first time through, prior to 6156 * allocation, we don't need to free a data buffer here. 6157 */ 6158 if (param_len < header_size) { 6159 ctl_set_param_len_error(ctsio); 6160 ctl_done((union ctl_io *)ctsio); 6161 return (CTL_RETVAL_COMPLETE); 6162 } 6163 6164 /* 6165 * Allocate the data buffer and grab the user's data. In theory, 6166 * we shouldn't have to sanity check the parameter list length here 6167 * because the maximum size is 64K. We should be able to malloc 6168 * that much without too many problems. 6169 */ 6170 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6171 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6172 ctsio->kern_data_len = param_len; 6173 ctsio->kern_total_len = param_len; 6174 ctsio->kern_data_resid = 0; 6175 ctsio->kern_rel_offset = 0; 6176 ctsio->kern_sg_entries = 0; 6177 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6178 ctsio->be_move_done = ctl_config_move_done; 6179 ctl_datamove((union ctl_io *)ctsio); 6180 6181 return (CTL_RETVAL_COMPLETE); 6182 } 6183 6184 switch (ctsio->cdb[0]) { 6185 case MODE_SELECT_6: { 6186 struct scsi_mode_header_6 *mh6; 6187 6188 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6189 bd_len = mh6->blk_desc_len; 6190 break; 6191 } 6192 case MODE_SELECT_10: { 6193 struct scsi_mode_header_10 *mh10; 6194 6195 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6196 bd_len = scsi_2btoul(mh10->blk_desc_len); 6197 break; 6198 } 6199 default: 6200 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6201 break; 6202 } 6203 6204 if (param_len < (header_size + bd_len)) { 6205 free(ctsio->kern_data_ptr, M_CTL); 6206 ctl_set_param_len_error(ctsio); 6207 ctl_done((union ctl_io *)ctsio); 6208 return (CTL_RETVAL_COMPLETE); 6209 } 6210 6211 /* 6212 * Set the IO_CONT flag, so that if this I/O gets passed to 6213 * ctl_config_write_done(), it'll get passed back to 6214 * ctl_do_mode_select() for further processing, or completion if 6215 * we're all done. 6216 */ 6217 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6218 ctsio->io_cont = ctl_do_mode_select; 6219 6220 modepage_info = (union ctl_modepage_info *) 6221 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6222 6223 memset(modepage_info, 0, sizeof(*modepage_info)); 6224 6225 len_left = param_len - header_size - bd_len; 6226 len_used = header_size + bd_len; 6227 6228 modepage_info->header.len_left = len_left; 6229 modepage_info->header.len_used = len_used; 6230 6231 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6232} 6233 6234int 6235ctl_mode_sense(struct ctl_scsiio *ctsio) 6236{ 6237 struct ctl_lun *lun; 6238 int pc, page_code, dbd, llba, subpage; 6239 int alloc_len, page_len, header_len, total_len; 6240 struct scsi_mode_block_descr *block_desc; 6241 struct ctl_page_index *page_index; 6242 int control_dev; 6243 6244 dbd = 0; 6245 llba = 0; 6246 block_desc = NULL; 6247 page_index = NULL; 6248 6249 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6250 6251 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6252 6253 if (lun->be_lun->lun_type != T_DIRECT) 6254 control_dev = 1; 6255 else 6256 control_dev = 0; 6257 6258 switch (ctsio->cdb[0]) { 6259 case MODE_SENSE_6: { 6260 struct scsi_mode_sense_6 *cdb; 6261 6262 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6263 6264 header_len = sizeof(struct scsi_mode_hdr_6); 6265 if (cdb->byte2 & SMS_DBD) 6266 dbd = 1; 6267 else 6268 header_len += sizeof(struct scsi_mode_block_descr); 6269 6270 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6271 page_code = cdb->page & SMS_PAGE_CODE; 6272 subpage = cdb->subpage; 6273 alloc_len = cdb->length; 6274 break; 6275 } 6276 case MODE_SENSE_10: { 6277 struct scsi_mode_sense_10 *cdb; 6278 6279 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6280 6281 header_len = sizeof(struct scsi_mode_hdr_10); 6282 6283 if (cdb->byte2 & SMS_DBD) 6284 dbd = 1; 6285 else 6286 header_len += sizeof(struct scsi_mode_block_descr); 6287 if (cdb->byte2 & SMS10_LLBAA) 6288 llba = 1; 6289 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6290 page_code = cdb->page & SMS_PAGE_CODE; 6291 subpage = cdb->subpage; 6292 alloc_len = scsi_2btoul(cdb->length); 6293 break; 6294 } 6295 default: 6296 ctl_set_invalid_opcode(ctsio); 6297 ctl_done((union ctl_io *)ctsio); 6298 return (CTL_RETVAL_COMPLETE); 6299 break; /* NOTREACHED */ 6300 } 6301 6302 /* 6303 * We have to make a first pass through to calculate the size of 6304 * the pages that match the user's query. Then we allocate enough 6305 * memory to hold it, and actually copy the data into the buffer. 6306 */ 6307 switch (page_code) { 6308 case SMS_ALL_PAGES_PAGE: { 6309 int i; 6310 6311 page_len = 0; 6312 6313 /* 6314 * At the moment, values other than 0 and 0xff here are 6315 * reserved according to SPC-3. 6316 */ 6317 if ((subpage != SMS_SUBPAGE_PAGE_0) 6318 && (subpage != SMS_SUBPAGE_ALL)) { 6319 ctl_set_invalid_field(ctsio, 6320 /*sks_valid*/ 1, 6321 /*command*/ 1, 6322 /*field*/ 3, 6323 /*bit_valid*/ 0, 6324 /*bit*/ 0); 6325 ctl_done((union ctl_io *)ctsio); 6326 return (CTL_RETVAL_COMPLETE); 6327 } 6328 6329 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6330 if ((control_dev != 0) 6331 && (lun->mode_pages.index[i].page_flags & 6332 CTL_PAGE_FLAG_DISK_ONLY)) 6333 continue; 6334 6335 /* 6336 * We don't use this subpage if the user didn't 6337 * request all subpages. 6338 */ 6339 if ((lun->mode_pages.index[i].subpage != 0) 6340 && (subpage == SMS_SUBPAGE_PAGE_0)) 6341 continue; 6342 6343#if 0 6344 printf("found page %#x len %d\n", 6345 lun->mode_pages.index[i].page_code & 6346 SMPH_PC_MASK, 6347 lun->mode_pages.index[i].page_len); 6348#endif 6349 page_len += lun->mode_pages.index[i].page_len; 6350 } 6351 break; 6352 } 6353 default: { 6354 int i; 6355 6356 page_len = 0; 6357 6358 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6359 /* Look for the right page code */ 6360 if ((lun->mode_pages.index[i].page_code & 6361 SMPH_PC_MASK) != page_code) 6362 continue; 6363 6364 /* Look for the right subpage or the subpage wildcard*/ 6365 if ((lun->mode_pages.index[i].subpage != subpage) 6366 && (subpage != SMS_SUBPAGE_ALL)) 6367 continue; 6368 6369 /* Make sure the page is supported for this dev type */ 6370 if ((control_dev != 0) 6371 && (lun->mode_pages.index[i].page_flags & 6372 CTL_PAGE_FLAG_DISK_ONLY)) 6373 continue; 6374 6375#if 0 6376 printf("found page %#x len %d\n", 6377 lun->mode_pages.index[i].page_code & 6378 SMPH_PC_MASK, 6379 lun->mode_pages.index[i].page_len); 6380#endif 6381 6382 page_len += lun->mode_pages.index[i].page_len; 6383 } 6384 6385 if (page_len == 0) { 6386 ctl_set_invalid_field(ctsio, 6387 /*sks_valid*/ 1, 6388 /*command*/ 1, 6389 /*field*/ 2, 6390 /*bit_valid*/ 1, 6391 /*bit*/ 5); 6392 ctl_done((union ctl_io *)ctsio); 6393 return (CTL_RETVAL_COMPLETE); 6394 } 6395 break; 6396 } 6397 } 6398 6399 total_len = header_len + page_len; 6400#if 0 6401 printf("header_len = %d, page_len = %d, total_len = %d\n", 6402 header_len, page_len, total_len); 6403#endif 6404 6405 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6406 ctsio->kern_sg_entries = 0; 6407 ctsio->kern_data_resid = 0; 6408 ctsio->kern_rel_offset = 0; 6409 if (total_len < alloc_len) { 6410 ctsio->residual = alloc_len - total_len; 6411 ctsio->kern_data_len = total_len; 6412 ctsio->kern_total_len = total_len; 6413 } else { 6414 ctsio->residual = 0; 6415 ctsio->kern_data_len = alloc_len; 6416 ctsio->kern_total_len = alloc_len; 6417 } 6418 6419 switch (ctsio->cdb[0]) { 6420 case MODE_SENSE_6: { 6421 struct scsi_mode_hdr_6 *header; 6422 6423 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6424 6425 header->datalen = MIN(total_len - 1, 254); 6426 if (control_dev == 0) { 6427 header->dev_specific = 0x10; /* DPOFUA */ 6428 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6429 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6430 .eca_and_aen & SCP_SWP) != 0) 6431 header->dev_specific |= 0x80; /* WP */ 6432 } 6433 if (dbd) 6434 header->block_descr_len = 0; 6435 else 6436 header->block_descr_len = 6437 sizeof(struct scsi_mode_block_descr); 6438 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6439 break; 6440 } 6441 case MODE_SENSE_10: { 6442 struct scsi_mode_hdr_10 *header; 6443 int datalen; 6444 6445 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6446 6447 datalen = MIN(total_len - 2, 65533); 6448 scsi_ulto2b(datalen, header->datalen); 6449 if (control_dev == 0) { 6450 header->dev_specific = 0x10; /* DPOFUA */ 6451 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6452 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6453 .eca_and_aen & SCP_SWP) != 0) 6454 header->dev_specific |= 0x80; /* WP */ 6455 } 6456 if (dbd) 6457 scsi_ulto2b(0, header->block_descr_len); 6458 else 6459 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 6460 header->block_descr_len); 6461 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6462 break; 6463 } 6464 default: 6465 panic("invalid CDB type %#x", ctsio->cdb[0]); 6466 break; /* NOTREACHED */ 6467 } 6468 6469 /* 6470 * If we've got a disk, use its blocksize in the block 6471 * descriptor. Otherwise, just set it to 0. 6472 */ 6473 if (dbd == 0) { 6474 if (control_dev == 0) 6475 scsi_ulto3b(lun->be_lun->blocksize, 6476 block_desc->block_len); 6477 else 6478 scsi_ulto3b(0, block_desc->block_len); 6479 } 6480 6481 switch (page_code) { 6482 case SMS_ALL_PAGES_PAGE: { 6483 int i, data_used; 6484 6485 data_used = header_len; 6486 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6487 struct ctl_page_index *page_index; 6488 6489 page_index = &lun->mode_pages.index[i]; 6490 6491 if ((control_dev != 0) 6492 && (page_index->page_flags & 6493 CTL_PAGE_FLAG_DISK_ONLY)) 6494 continue; 6495 6496 /* 6497 * We don't use this subpage if the user didn't 6498 * request all subpages. We already checked (above) 6499 * to make sure the user only specified a subpage 6500 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 6501 */ 6502 if ((page_index->subpage != 0) 6503 && (subpage == SMS_SUBPAGE_PAGE_0)) 6504 continue; 6505 6506 /* 6507 * Call the handler, if it exists, to update the 6508 * page to the latest values. 6509 */ 6510 if (page_index->sense_handler != NULL) 6511 page_index->sense_handler(ctsio, page_index,pc); 6512 6513 memcpy(ctsio->kern_data_ptr + data_used, 6514 page_index->page_data + 6515 (page_index->page_len * pc), 6516 page_index->page_len); 6517 data_used += page_index->page_len; 6518 } 6519 break; 6520 } 6521 default: { 6522 int i, data_used; 6523 6524 data_used = header_len; 6525 6526 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6527 struct ctl_page_index *page_index; 6528 6529 page_index = &lun->mode_pages.index[i]; 6530 6531 /* Look for the right page code */ 6532 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6533 continue; 6534 6535 /* Look for the right subpage or the subpage wildcard*/ 6536 if ((page_index->subpage != subpage) 6537 && (subpage != SMS_SUBPAGE_ALL)) 6538 continue; 6539 6540 /* Make sure the page is supported for this dev type */ 6541 if ((control_dev != 0) 6542 && (page_index->page_flags & 6543 CTL_PAGE_FLAG_DISK_ONLY)) 6544 continue; 6545 6546 /* 6547 * Call the handler, if it exists, to update the 6548 * page to the latest values. 6549 */ 6550 if (page_index->sense_handler != NULL) 6551 page_index->sense_handler(ctsio, page_index,pc); 6552 6553 memcpy(ctsio->kern_data_ptr + data_used, 6554 page_index->page_data + 6555 (page_index->page_len * pc), 6556 page_index->page_len); 6557 data_used += page_index->page_len; 6558 } 6559 break; 6560 } 6561 } 6562 6563 ctl_set_success(ctsio); 6564 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6565 ctsio->be_move_done = ctl_config_move_done; 6566 ctl_datamove((union ctl_io *)ctsio); 6567 return (CTL_RETVAL_COMPLETE); 6568} 6569 6570int 6571ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio, 6572 struct ctl_page_index *page_index, 6573 int pc) 6574{ 6575 struct ctl_lun *lun; 6576 struct scsi_log_param_header *phdr; 6577 uint8_t *data; 6578 uint64_t val; 6579 6580 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6581 data = page_index->page_data; 6582 6583 if (lun->backend->lun_attr != NULL && 6584 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksavail")) 6585 != UINT64_MAX) { 6586 phdr = (struct scsi_log_param_header *)data; 6587 scsi_ulto2b(0x0001, phdr->param_code); 6588 phdr->param_control = SLP_LBIN | SLP_LP; 6589 phdr->param_len = 8; 6590 data = (uint8_t *)(phdr + 1); 6591 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6592 data[4] = 0x02; /* per-pool */ 6593 data += phdr->param_len; 6594 } 6595 6596 if (lun->backend->lun_attr != NULL && 6597 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksused")) 6598 != UINT64_MAX) { 6599 phdr = (struct scsi_log_param_header *)data; 6600 scsi_ulto2b(0x0002, phdr->param_code); 6601 phdr->param_control = SLP_LBIN | SLP_LP; 6602 phdr->param_len = 8; 6603 data = (uint8_t *)(phdr + 1); 6604 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6605 data[4] = 0x01; /* per-LUN */ 6606 data += phdr->param_len; 6607 } 6608 6609 if (lun->backend->lun_attr != NULL && 6610 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksavail")) 6611 != UINT64_MAX) { 6612 phdr = (struct scsi_log_param_header *)data; 6613 scsi_ulto2b(0x00f1, phdr->param_code); 6614 phdr->param_control = SLP_LBIN | SLP_LP; 6615 phdr->param_len = 8; 6616 data = (uint8_t *)(phdr + 1); 6617 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6618 data[4] = 0x02; /* per-pool */ 6619 data += phdr->param_len; 6620 } 6621 6622 if (lun->backend->lun_attr != NULL && 6623 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksused")) 6624 != UINT64_MAX) { 6625 phdr = (struct scsi_log_param_header *)data; 6626 scsi_ulto2b(0x00f2, phdr->param_code); 6627 phdr->param_control = SLP_LBIN | SLP_LP; 6628 phdr->param_len = 8; 6629 data = (uint8_t *)(phdr + 1); 6630 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6631 data[4] = 0x02; /* per-pool */ 6632 data += phdr->param_len; 6633 } 6634 6635 page_index->page_len = data - page_index->page_data; 6636 return (0); 6637} 6638 6639int 6640ctl_sap_log_sense_handler(struct ctl_scsiio *ctsio, 6641 struct ctl_page_index *page_index, 6642 int pc) 6643{ 6644 struct ctl_lun *lun; 6645 struct stat_page *data; 6646 uint64_t rn, wn, rb, wb; 6647 struct bintime rt, wt; 6648 int i; 6649 6650 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6651 data = (struct stat_page *)page_index->page_data; 6652 6653 scsi_ulto2b(SLP_SAP, data->sap.hdr.param_code); 6654 data->sap.hdr.param_control = SLP_LBIN; 6655 data->sap.hdr.param_len = sizeof(struct scsi_log_stat_and_perf) - 6656 sizeof(struct scsi_log_param_header); 6657 rn = wn = rb = wb = 0; 6658 bintime_clear(&rt); 6659 bintime_clear(&wt); 6660 for (i = 0; i < CTL_MAX_PORTS; i++) { 6661 rn += lun->stats.ports[i].operations[CTL_STATS_READ]; 6662 wn += lun->stats.ports[i].operations[CTL_STATS_WRITE]; 6663 rb += lun->stats.ports[i].bytes[CTL_STATS_READ]; 6664 wb += lun->stats.ports[i].bytes[CTL_STATS_WRITE]; 6665 bintime_add(&rt, &lun->stats.ports[i].time[CTL_STATS_READ]); 6666 bintime_add(&wt, &lun->stats.ports[i].time[CTL_STATS_WRITE]); 6667 } 6668 scsi_u64to8b(rn, data->sap.read_num); 6669 scsi_u64to8b(wn, data->sap.write_num); 6670 if (lun->stats.blocksize > 0) { 6671 scsi_u64to8b(wb / lun->stats.blocksize, 6672 data->sap.recvieved_lba); 6673 scsi_u64to8b(rb / lun->stats.blocksize, 6674 data->sap.transmitted_lba); 6675 } 6676 scsi_u64to8b((uint64_t)rt.sec * 1000 + rt.frac / (UINT64_MAX / 1000), 6677 data->sap.read_int); 6678 scsi_u64to8b((uint64_t)wt.sec * 1000 + wt.frac / (UINT64_MAX / 1000), 6679 data->sap.write_int); 6680 scsi_u64to8b(0, data->sap.weighted_num); 6681 scsi_u64to8b(0, data->sap.weighted_int); 6682 scsi_ulto2b(SLP_IT, data->it.hdr.param_code); 6683 data->it.hdr.param_control = SLP_LBIN; 6684 data->it.hdr.param_len = sizeof(struct scsi_log_idle_time) - 6685 sizeof(struct scsi_log_param_header); 6686#ifdef CTL_TIME_IO 6687 scsi_u64to8b(lun->idle_time / SBT_1MS, data->it.idle_int); 6688#endif 6689 scsi_ulto2b(SLP_TI, data->ti.hdr.param_code); 6690 data->it.hdr.param_control = SLP_LBIN; 6691 data->ti.hdr.param_len = sizeof(struct scsi_log_time_interval) - 6692 sizeof(struct scsi_log_param_header); 6693 scsi_ulto4b(3, data->ti.exponent); 6694 scsi_ulto4b(1, data->ti.integer); 6695 6696 page_index->page_len = sizeof(*data); 6697 return (0); 6698} 6699 6700int 6701ctl_log_sense(struct ctl_scsiio *ctsio) 6702{ 6703 struct ctl_lun *lun; 6704 int i, pc, page_code, subpage; 6705 int alloc_len, total_len; 6706 struct ctl_page_index *page_index; 6707 struct scsi_log_sense *cdb; 6708 struct scsi_log_header *header; 6709 6710 CTL_DEBUG_PRINT(("ctl_log_sense\n")); 6711 6712 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6713 cdb = (struct scsi_log_sense *)ctsio->cdb; 6714 pc = (cdb->page & SLS_PAGE_CTRL_MASK) >> 6; 6715 page_code = cdb->page & SLS_PAGE_CODE; 6716 subpage = cdb->subpage; 6717 alloc_len = scsi_2btoul(cdb->length); 6718 6719 page_index = NULL; 6720 for (i = 0; i < CTL_NUM_LOG_PAGES; i++) { 6721 page_index = &lun->log_pages.index[i]; 6722 6723 /* Look for the right page code */ 6724 if ((page_index->page_code & SL_PAGE_CODE) != page_code) 6725 continue; 6726 6727 /* Look for the right subpage or the subpage wildcard*/ 6728 if (page_index->subpage != subpage) 6729 continue; 6730 6731 break; 6732 } 6733 if (i >= CTL_NUM_LOG_PAGES) { 6734 ctl_set_invalid_field(ctsio, 6735 /*sks_valid*/ 1, 6736 /*command*/ 1, 6737 /*field*/ 2, 6738 /*bit_valid*/ 0, 6739 /*bit*/ 0); 6740 ctl_done((union ctl_io *)ctsio); 6741 return (CTL_RETVAL_COMPLETE); 6742 } 6743 6744 total_len = sizeof(struct scsi_log_header) + page_index->page_len; 6745 6746 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6747 ctsio->kern_sg_entries = 0; 6748 ctsio->kern_data_resid = 0; 6749 ctsio->kern_rel_offset = 0; 6750 if (total_len < alloc_len) { 6751 ctsio->residual = alloc_len - total_len; 6752 ctsio->kern_data_len = total_len; 6753 ctsio->kern_total_len = total_len; 6754 } else { 6755 ctsio->residual = 0; 6756 ctsio->kern_data_len = alloc_len; 6757 ctsio->kern_total_len = alloc_len; 6758 } 6759 6760 header = (struct scsi_log_header *)ctsio->kern_data_ptr; 6761 header->page = page_index->page_code; 6762 if (page_index->subpage) { 6763 header->page |= SL_SPF; 6764 header->subpage = page_index->subpage; 6765 } 6766 scsi_ulto2b(page_index->page_len, header->datalen); 6767 6768 /* 6769 * Call the handler, if it exists, to update the 6770 * page to the latest values. 6771 */ 6772 if (page_index->sense_handler != NULL) 6773 page_index->sense_handler(ctsio, page_index, pc); 6774 6775 memcpy(header + 1, page_index->page_data, page_index->page_len); 6776 6777 ctl_set_success(ctsio); 6778 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6779 ctsio->be_move_done = ctl_config_move_done; 6780 ctl_datamove((union ctl_io *)ctsio); 6781 return (CTL_RETVAL_COMPLETE); 6782} 6783 6784int 6785ctl_read_capacity(struct ctl_scsiio *ctsio) 6786{ 6787 struct scsi_read_capacity *cdb; 6788 struct scsi_read_capacity_data *data; 6789 struct ctl_lun *lun; 6790 uint32_t lba; 6791 6792 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 6793 6794 cdb = (struct scsi_read_capacity *)ctsio->cdb; 6795 6796 lba = scsi_4btoul(cdb->addr); 6797 if (((cdb->pmi & SRC_PMI) == 0) 6798 && (lba != 0)) { 6799 ctl_set_invalid_field(/*ctsio*/ ctsio, 6800 /*sks_valid*/ 1, 6801 /*command*/ 1, 6802 /*field*/ 2, 6803 /*bit_valid*/ 0, 6804 /*bit*/ 0); 6805 ctl_done((union ctl_io *)ctsio); 6806 return (CTL_RETVAL_COMPLETE); 6807 } 6808 6809 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6810 6811 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6812 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 6813 ctsio->residual = 0; 6814 ctsio->kern_data_len = sizeof(*data); 6815 ctsio->kern_total_len = sizeof(*data); 6816 ctsio->kern_data_resid = 0; 6817 ctsio->kern_rel_offset = 0; 6818 ctsio->kern_sg_entries = 0; 6819 6820 /* 6821 * If the maximum LBA is greater than 0xfffffffe, the user must 6822 * issue a SERVICE ACTION IN (16) command, with the read capacity 6823 * serivce action set. 6824 */ 6825 if (lun->be_lun->maxlba > 0xfffffffe) 6826 scsi_ulto4b(0xffffffff, data->addr); 6827 else 6828 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 6829 6830 /* 6831 * XXX KDM this may not be 512 bytes... 6832 */ 6833 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6834 6835 ctl_set_success(ctsio); 6836 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6837 ctsio->be_move_done = ctl_config_move_done; 6838 ctl_datamove((union ctl_io *)ctsio); 6839 return (CTL_RETVAL_COMPLETE); 6840} 6841 6842int 6843ctl_read_capacity_16(struct ctl_scsiio *ctsio) 6844{ 6845 struct scsi_read_capacity_16 *cdb; 6846 struct scsi_read_capacity_data_long *data; 6847 struct ctl_lun *lun; 6848 uint64_t lba; 6849 uint32_t alloc_len; 6850 6851 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 6852 6853 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 6854 6855 alloc_len = scsi_4btoul(cdb->alloc_len); 6856 lba = scsi_8btou64(cdb->addr); 6857 6858 if ((cdb->reladr & SRC16_PMI) 6859 && (lba != 0)) { 6860 ctl_set_invalid_field(/*ctsio*/ ctsio, 6861 /*sks_valid*/ 1, 6862 /*command*/ 1, 6863 /*field*/ 2, 6864 /*bit_valid*/ 0, 6865 /*bit*/ 0); 6866 ctl_done((union ctl_io *)ctsio); 6867 return (CTL_RETVAL_COMPLETE); 6868 } 6869 6870 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6871 6872 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6873 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 6874 6875 if (sizeof(*data) < alloc_len) { 6876 ctsio->residual = alloc_len - sizeof(*data); 6877 ctsio->kern_data_len = sizeof(*data); 6878 ctsio->kern_total_len = sizeof(*data); 6879 } else { 6880 ctsio->residual = 0; 6881 ctsio->kern_data_len = alloc_len; 6882 ctsio->kern_total_len = alloc_len; 6883 } 6884 ctsio->kern_data_resid = 0; 6885 ctsio->kern_rel_offset = 0; 6886 ctsio->kern_sg_entries = 0; 6887 6888 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 6889 /* XXX KDM this may not be 512 bytes... */ 6890 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6891 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 6892 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 6893 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 6894 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 6895 6896 ctl_set_success(ctsio); 6897 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6898 ctsio->be_move_done = ctl_config_move_done; 6899 ctl_datamove((union ctl_io *)ctsio); 6900 return (CTL_RETVAL_COMPLETE); 6901} 6902 6903int 6904ctl_get_lba_status(struct ctl_scsiio *ctsio) 6905{ 6906 struct scsi_get_lba_status *cdb; 6907 struct scsi_get_lba_status_data *data; 6908 struct ctl_lun *lun; 6909 struct ctl_lba_len_flags *lbalen; 6910 uint64_t lba; 6911 uint32_t alloc_len, total_len; 6912 int retval; 6913 6914 CTL_DEBUG_PRINT(("ctl_get_lba_status\n")); 6915 6916 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6917 cdb = (struct scsi_get_lba_status *)ctsio->cdb; 6918 lba = scsi_8btou64(cdb->addr); 6919 alloc_len = scsi_4btoul(cdb->alloc_len); 6920 6921 if (lba > lun->be_lun->maxlba) { 6922 ctl_set_lba_out_of_range(ctsio); 6923 ctl_done((union ctl_io *)ctsio); 6924 return (CTL_RETVAL_COMPLETE); 6925 } 6926 6927 total_len = sizeof(*data) + sizeof(data->descr[0]); 6928 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6929 data = (struct scsi_get_lba_status_data *)ctsio->kern_data_ptr; 6930 6931 if (total_len < alloc_len) { 6932 ctsio->residual = alloc_len - total_len; 6933 ctsio->kern_data_len = total_len; 6934 ctsio->kern_total_len = total_len; 6935 } else { 6936 ctsio->residual = 0; 6937 ctsio->kern_data_len = alloc_len; 6938 ctsio->kern_total_len = alloc_len; 6939 } 6940 ctsio->kern_data_resid = 0; 6941 ctsio->kern_rel_offset = 0; 6942 ctsio->kern_sg_entries = 0; 6943 6944 /* Fill dummy data in case backend can't tell anything. */ 6945 scsi_ulto4b(4 + sizeof(data->descr[0]), data->length); 6946 scsi_u64to8b(lba, data->descr[0].addr); 6947 scsi_ulto4b(MIN(UINT32_MAX, lun->be_lun->maxlba + 1 - lba), 6948 data->descr[0].length); 6949 data->descr[0].status = 0; /* Mapped or unknown. */ 6950 6951 ctl_set_success(ctsio); 6952 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6953 ctsio->be_move_done = ctl_config_move_done; 6954 6955 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6956 lbalen->lba = lba; 6957 lbalen->len = total_len; 6958 lbalen->flags = 0; 6959 retval = lun->backend->config_read((union ctl_io *)ctsio); 6960 return (CTL_RETVAL_COMPLETE); 6961} 6962 6963int 6964ctl_read_defect(struct ctl_scsiio *ctsio) 6965{ 6966 struct scsi_read_defect_data_10 *ccb10; 6967 struct scsi_read_defect_data_12 *ccb12; 6968 struct scsi_read_defect_data_hdr_10 *data10; 6969 struct scsi_read_defect_data_hdr_12 *data12; 6970 uint32_t alloc_len, data_len; 6971 uint8_t format; 6972 6973 CTL_DEBUG_PRINT(("ctl_read_defect\n")); 6974 6975 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 6976 ccb10 = (struct scsi_read_defect_data_10 *)&ctsio->cdb; 6977 format = ccb10->format; 6978 alloc_len = scsi_2btoul(ccb10->alloc_length); 6979 data_len = sizeof(*data10); 6980 } else { 6981 ccb12 = (struct scsi_read_defect_data_12 *)&ctsio->cdb; 6982 format = ccb12->format; 6983 alloc_len = scsi_4btoul(ccb12->alloc_length); 6984 data_len = sizeof(*data12); 6985 } 6986 if (alloc_len == 0) { 6987 ctl_set_success(ctsio); 6988 ctl_done((union ctl_io *)ctsio); 6989 return (CTL_RETVAL_COMPLETE); 6990 } 6991 6992 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 6993 if (data_len < alloc_len) { 6994 ctsio->residual = alloc_len - data_len; 6995 ctsio->kern_data_len = data_len; 6996 ctsio->kern_total_len = data_len; 6997 } else { 6998 ctsio->residual = 0; 6999 ctsio->kern_data_len = alloc_len; 7000 ctsio->kern_total_len = alloc_len; 7001 } 7002 ctsio->kern_data_resid = 0; 7003 ctsio->kern_rel_offset = 0; 7004 ctsio->kern_sg_entries = 0; 7005 7006 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7007 data10 = (struct scsi_read_defect_data_hdr_10 *) 7008 ctsio->kern_data_ptr; 7009 data10->format = format; 7010 scsi_ulto2b(0, data10->length); 7011 } else { 7012 data12 = (struct scsi_read_defect_data_hdr_12 *) 7013 ctsio->kern_data_ptr; 7014 data12->format = format; 7015 scsi_ulto2b(0, data12->generation); 7016 scsi_ulto4b(0, data12->length); 7017 } 7018 7019 ctl_set_success(ctsio); 7020 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7021 ctsio->be_move_done = ctl_config_move_done; 7022 ctl_datamove((union ctl_io *)ctsio); 7023 return (CTL_RETVAL_COMPLETE); 7024} 7025 7026int 7027ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7028{ 7029 struct scsi_maintenance_in *cdb; 7030 int retval; 7031 int alloc_len, ext, total_len = 0, g, pc, pg, gs, os; 7032 int num_target_port_groups, num_target_ports; 7033 struct ctl_lun *lun; 7034 struct ctl_softc *softc; 7035 struct ctl_port *port; 7036 struct scsi_target_group_data *rtg_ptr; 7037 struct scsi_target_group_data_extended *rtg_ext_ptr; 7038 struct scsi_target_port_group_descriptor *tpg_desc; 7039 7040 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7041 7042 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7043 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7044 softc = lun->ctl_softc; 7045 7046 retval = CTL_RETVAL_COMPLETE; 7047 7048 switch (cdb->byte2 & STG_PDF_MASK) { 7049 case STG_PDF_LENGTH: 7050 ext = 0; 7051 break; 7052 case STG_PDF_EXTENDED: 7053 ext = 1; 7054 break; 7055 default: 7056 ctl_set_invalid_field(/*ctsio*/ ctsio, 7057 /*sks_valid*/ 1, 7058 /*command*/ 1, 7059 /*field*/ 2, 7060 /*bit_valid*/ 1, 7061 /*bit*/ 5); 7062 ctl_done((union ctl_io *)ctsio); 7063 return(retval); 7064 } 7065 7066 if (softc->is_single) 7067 num_target_port_groups = 1; 7068 else 7069 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7070 num_target_ports = 0; 7071 mtx_lock(&softc->ctl_lock); 7072 STAILQ_FOREACH(port, &softc->port_list, links) { 7073 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7074 continue; 7075 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 7076 continue; 7077 num_target_ports++; 7078 } 7079 mtx_unlock(&softc->ctl_lock); 7080 7081 if (ext) 7082 total_len = sizeof(struct scsi_target_group_data_extended); 7083 else 7084 total_len = sizeof(struct scsi_target_group_data); 7085 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7086 num_target_port_groups + 7087 sizeof(struct scsi_target_port_descriptor) * num_target_ports; 7088 7089 alloc_len = scsi_4btoul(cdb->length); 7090 7091 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7092 7093 ctsio->kern_sg_entries = 0; 7094 7095 if (total_len < alloc_len) { 7096 ctsio->residual = alloc_len - total_len; 7097 ctsio->kern_data_len = total_len; 7098 ctsio->kern_total_len = total_len; 7099 } else { 7100 ctsio->residual = 0; 7101 ctsio->kern_data_len = alloc_len; 7102 ctsio->kern_total_len = alloc_len; 7103 } 7104 ctsio->kern_data_resid = 0; 7105 ctsio->kern_rel_offset = 0; 7106 7107 if (ext) { 7108 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7109 ctsio->kern_data_ptr; 7110 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7111 rtg_ext_ptr->format_type = 0x10; 7112 rtg_ext_ptr->implicit_transition_time = 0; 7113 tpg_desc = &rtg_ext_ptr->groups[0]; 7114 } else { 7115 rtg_ptr = (struct scsi_target_group_data *) 7116 ctsio->kern_data_ptr; 7117 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7118 tpg_desc = &rtg_ptr->groups[0]; 7119 } 7120 7121 mtx_lock(&softc->ctl_lock); 7122 pg = softc->port_min / softc->port_cnt; 7123 if (softc->ha_link == CTL_HA_LINK_OFFLINE) 7124 gs = TPG_ASYMMETRIC_ACCESS_UNAVAILABLE; 7125 else if (softc->ha_link == CTL_HA_LINK_UNKNOWN) 7126 gs = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7127 else if (softc->ha_mode == CTL_HA_MODE_ACT_STBY) 7128 gs = TPG_ASYMMETRIC_ACCESS_STANDBY; 7129 else 7130 gs = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7131 if (lun->flags & CTL_LUN_PRIMARY_SC) { 7132 os = gs; 7133 gs = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7134 } else 7135 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7136 for (g = 0; g < num_target_port_groups; g++) { 7137 tpg_desc->pref_state = (g == pg) ? gs : os; 7138 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP | 7139 TPG_U_SUP | TPG_T_SUP; 7140 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7141 tpg_desc->status = TPG_IMPLICIT; 7142 pc = 0; 7143 STAILQ_FOREACH(port, &softc->port_list, links) { 7144 if (port->targ_port < g * softc->port_cnt || 7145 port->targ_port >= (g + 1) * softc->port_cnt) 7146 continue; 7147 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7148 continue; 7149 if (ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 7150 continue; 7151 scsi_ulto2b(port->targ_port, tpg_desc->descriptors[pc]. 7152 relative_target_port_identifier); 7153 pc++; 7154 } 7155 tpg_desc->target_port_count = pc; 7156 tpg_desc = (struct scsi_target_port_group_descriptor *) 7157 &tpg_desc->descriptors[pc]; 7158 } 7159 mtx_unlock(&softc->ctl_lock); 7160 7161 ctl_set_success(ctsio); 7162 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7163 ctsio->be_move_done = ctl_config_move_done; 7164 ctl_datamove((union ctl_io *)ctsio); 7165 return(retval); 7166} 7167 7168int 7169ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7170{ 7171 struct ctl_lun *lun; 7172 struct scsi_report_supported_opcodes *cdb; 7173 const struct ctl_cmd_entry *entry, *sentry; 7174 struct scsi_report_supported_opcodes_all *all; 7175 struct scsi_report_supported_opcodes_descr *descr; 7176 struct scsi_report_supported_opcodes_one *one; 7177 int retval; 7178 int alloc_len, total_len; 7179 int opcode, service_action, i, j, num; 7180 7181 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7182 7183 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7184 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7185 7186 retval = CTL_RETVAL_COMPLETE; 7187 7188 opcode = cdb->requested_opcode; 7189 service_action = scsi_2btoul(cdb->requested_service_action); 7190 switch (cdb->options & RSO_OPTIONS_MASK) { 7191 case RSO_OPTIONS_ALL: 7192 num = 0; 7193 for (i = 0; i < 256; i++) { 7194 entry = &ctl_cmd_table[i]; 7195 if (entry->flags & CTL_CMD_FLAG_SA5) { 7196 for (j = 0; j < 32; j++) { 7197 sentry = &((const struct ctl_cmd_entry *) 7198 entry->execute)[j]; 7199 if (ctl_cmd_applicable( 7200 lun->be_lun->lun_type, sentry)) 7201 num++; 7202 } 7203 } else { 7204 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7205 entry)) 7206 num++; 7207 } 7208 } 7209 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7210 num * sizeof(struct scsi_report_supported_opcodes_descr); 7211 break; 7212 case RSO_OPTIONS_OC: 7213 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7214 ctl_set_invalid_field(/*ctsio*/ ctsio, 7215 /*sks_valid*/ 1, 7216 /*command*/ 1, 7217 /*field*/ 2, 7218 /*bit_valid*/ 1, 7219 /*bit*/ 2); 7220 ctl_done((union ctl_io *)ctsio); 7221 return (CTL_RETVAL_COMPLETE); 7222 } 7223 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7224 break; 7225 case RSO_OPTIONS_OC_SA: 7226 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7227 service_action >= 32) { 7228 ctl_set_invalid_field(/*ctsio*/ ctsio, 7229 /*sks_valid*/ 1, 7230 /*command*/ 1, 7231 /*field*/ 2, 7232 /*bit_valid*/ 1, 7233 /*bit*/ 2); 7234 ctl_done((union ctl_io *)ctsio); 7235 return (CTL_RETVAL_COMPLETE); 7236 } 7237 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7238 break; 7239 default: 7240 ctl_set_invalid_field(/*ctsio*/ ctsio, 7241 /*sks_valid*/ 1, 7242 /*command*/ 1, 7243 /*field*/ 2, 7244 /*bit_valid*/ 1, 7245 /*bit*/ 2); 7246 ctl_done((union ctl_io *)ctsio); 7247 return (CTL_RETVAL_COMPLETE); 7248 } 7249 7250 alloc_len = scsi_4btoul(cdb->length); 7251 7252 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7253 7254 ctsio->kern_sg_entries = 0; 7255 7256 if (total_len < alloc_len) { 7257 ctsio->residual = alloc_len - total_len; 7258 ctsio->kern_data_len = total_len; 7259 ctsio->kern_total_len = total_len; 7260 } else { 7261 ctsio->residual = 0; 7262 ctsio->kern_data_len = alloc_len; 7263 ctsio->kern_total_len = alloc_len; 7264 } 7265 ctsio->kern_data_resid = 0; 7266 ctsio->kern_rel_offset = 0; 7267 7268 switch (cdb->options & RSO_OPTIONS_MASK) { 7269 case RSO_OPTIONS_ALL: 7270 all = (struct scsi_report_supported_opcodes_all *) 7271 ctsio->kern_data_ptr; 7272 num = 0; 7273 for (i = 0; i < 256; i++) { 7274 entry = &ctl_cmd_table[i]; 7275 if (entry->flags & CTL_CMD_FLAG_SA5) { 7276 for (j = 0; j < 32; j++) { 7277 sentry = &((const struct ctl_cmd_entry *) 7278 entry->execute)[j]; 7279 if (!ctl_cmd_applicable( 7280 lun->be_lun->lun_type, sentry)) 7281 continue; 7282 descr = &all->descr[num++]; 7283 descr->opcode = i; 7284 scsi_ulto2b(j, descr->service_action); 7285 descr->flags = RSO_SERVACTV; 7286 scsi_ulto2b(sentry->length, 7287 descr->cdb_length); 7288 } 7289 } else { 7290 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7291 entry)) 7292 continue; 7293 descr = &all->descr[num++]; 7294 descr->opcode = i; 7295 scsi_ulto2b(0, descr->service_action); 7296 descr->flags = 0; 7297 scsi_ulto2b(entry->length, descr->cdb_length); 7298 } 7299 } 7300 scsi_ulto4b( 7301 num * sizeof(struct scsi_report_supported_opcodes_descr), 7302 all->length); 7303 break; 7304 case RSO_OPTIONS_OC: 7305 one = (struct scsi_report_supported_opcodes_one *) 7306 ctsio->kern_data_ptr; 7307 entry = &ctl_cmd_table[opcode]; 7308 goto fill_one; 7309 case RSO_OPTIONS_OC_SA: 7310 one = (struct scsi_report_supported_opcodes_one *) 7311 ctsio->kern_data_ptr; 7312 entry = &ctl_cmd_table[opcode]; 7313 entry = &((const struct ctl_cmd_entry *) 7314 entry->execute)[service_action]; 7315fill_one: 7316 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7317 one->support = 3; 7318 scsi_ulto2b(entry->length, one->cdb_length); 7319 one->cdb_usage[0] = opcode; 7320 memcpy(&one->cdb_usage[1], entry->usage, 7321 entry->length - 1); 7322 } else 7323 one->support = 1; 7324 break; 7325 } 7326 7327 ctl_set_success(ctsio); 7328 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7329 ctsio->be_move_done = ctl_config_move_done; 7330 ctl_datamove((union ctl_io *)ctsio); 7331 return(retval); 7332} 7333 7334int 7335ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7336{ 7337 struct scsi_report_supported_tmf *cdb; 7338 struct scsi_report_supported_tmf_data *data; 7339 int retval; 7340 int alloc_len, total_len; 7341 7342 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7343 7344 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7345 7346 retval = CTL_RETVAL_COMPLETE; 7347 7348 total_len = sizeof(struct scsi_report_supported_tmf_data); 7349 alloc_len = scsi_4btoul(cdb->length); 7350 7351 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7352 7353 ctsio->kern_sg_entries = 0; 7354 7355 if (total_len < alloc_len) { 7356 ctsio->residual = alloc_len - total_len; 7357 ctsio->kern_data_len = total_len; 7358 ctsio->kern_total_len = total_len; 7359 } else { 7360 ctsio->residual = 0; 7361 ctsio->kern_data_len = alloc_len; 7362 ctsio->kern_total_len = alloc_len; 7363 } 7364 ctsio->kern_data_resid = 0; 7365 ctsio->kern_rel_offset = 0; 7366 7367 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7368 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_QTS | 7369 RST_TRS; 7370 data->byte2 |= RST_QAES | RST_QTSS | RST_ITNRS; 7371 7372 ctl_set_success(ctsio); 7373 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7374 ctsio->be_move_done = ctl_config_move_done; 7375 ctl_datamove((union ctl_io *)ctsio); 7376 return (retval); 7377} 7378 7379int 7380ctl_report_timestamp(struct ctl_scsiio *ctsio) 7381{ 7382 struct scsi_report_timestamp *cdb; 7383 struct scsi_report_timestamp_data *data; 7384 struct timeval tv; 7385 int64_t timestamp; 7386 int retval; 7387 int alloc_len, total_len; 7388 7389 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7390 7391 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7392 7393 retval = CTL_RETVAL_COMPLETE; 7394 7395 total_len = sizeof(struct scsi_report_timestamp_data); 7396 alloc_len = scsi_4btoul(cdb->length); 7397 7398 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7399 7400 ctsio->kern_sg_entries = 0; 7401 7402 if (total_len < alloc_len) { 7403 ctsio->residual = alloc_len - total_len; 7404 ctsio->kern_data_len = total_len; 7405 ctsio->kern_total_len = total_len; 7406 } else { 7407 ctsio->residual = 0; 7408 ctsio->kern_data_len = alloc_len; 7409 ctsio->kern_total_len = alloc_len; 7410 } 7411 ctsio->kern_data_resid = 0; 7412 ctsio->kern_rel_offset = 0; 7413 7414 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7415 scsi_ulto2b(sizeof(*data) - 2, data->length); 7416 data->origin = RTS_ORIG_OUTSIDE; 7417 getmicrotime(&tv); 7418 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7419 scsi_ulto4b(timestamp >> 16, data->timestamp); 7420 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7421 7422 ctl_set_success(ctsio); 7423 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7424 ctsio->be_move_done = ctl_config_move_done; 7425 ctl_datamove((union ctl_io *)ctsio); 7426 return (retval); 7427} 7428 7429int 7430ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7431{ 7432 struct scsi_per_res_in *cdb; 7433 int alloc_len, total_len = 0; 7434 /* struct scsi_per_res_in_rsrv in_data; */ 7435 struct ctl_lun *lun; 7436 struct ctl_softc *softc; 7437 uint64_t key; 7438 7439 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7440 7441 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7442 7443 alloc_len = scsi_2btoul(cdb->length); 7444 7445 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7446 softc = lun->ctl_softc; 7447 7448retry: 7449 mtx_lock(&lun->lun_lock); 7450 switch (cdb->action) { 7451 case SPRI_RK: /* read keys */ 7452 total_len = sizeof(struct scsi_per_res_in_keys) + 7453 lun->pr_key_count * 7454 sizeof(struct scsi_per_res_key); 7455 break; 7456 case SPRI_RR: /* read reservation */ 7457 if (lun->flags & CTL_LUN_PR_RESERVED) 7458 total_len = sizeof(struct scsi_per_res_in_rsrv); 7459 else 7460 total_len = sizeof(struct scsi_per_res_in_header); 7461 break; 7462 case SPRI_RC: /* report capabilities */ 7463 total_len = sizeof(struct scsi_per_res_cap); 7464 break; 7465 case SPRI_RS: /* read full status */ 7466 total_len = sizeof(struct scsi_per_res_in_header) + 7467 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7468 lun->pr_key_count; 7469 break; 7470 default: 7471 panic("Invalid PR type %x", cdb->action); 7472 } 7473 mtx_unlock(&lun->lun_lock); 7474 7475 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7476 7477 if (total_len < alloc_len) { 7478 ctsio->residual = alloc_len - total_len; 7479 ctsio->kern_data_len = total_len; 7480 ctsio->kern_total_len = total_len; 7481 } else { 7482 ctsio->residual = 0; 7483 ctsio->kern_data_len = alloc_len; 7484 ctsio->kern_total_len = alloc_len; 7485 } 7486 7487 ctsio->kern_data_resid = 0; 7488 ctsio->kern_rel_offset = 0; 7489 ctsio->kern_sg_entries = 0; 7490 7491 mtx_lock(&lun->lun_lock); 7492 switch (cdb->action) { 7493 case SPRI_RK: { // read keys 7494 struct scsi_per_res_in_keys *res_keys; 7495 int i, key_count; 7496 7497 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7498 7499 /* 7500 * We had to drop the lock to allocate our buffer, which 7501 * leaves time for someone to come in with another 7502 * persistent reservation. (That is unlikely, though, 7503 * since this should be the only persistent reservation 7504 * command active right now.) 7505 */ 7506 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7507 (lun->pr_key_count * 7508 sizeof(struct scsi_per_res_key)))){ 7509 mtx_unlock(&lun->lun_lock); 7510 free(ctsio->kern_data_ptr, M_CTL); 7511 printf("%s: reservation length changed, retrying\n", 7512 __func__); 7513 goto retry; 7514 } 7515 7516 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7517 7518 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7519 lun->pr_key_count, res_keys->header.length); 7520 7521 for (i = 0, key_count = 0; i < CTL_MAX_INITIATORS; i++) { 7522 if ((key = ctl_get_prkey(lun, i)) == 0) 7523 continue; 7524 7525 /* 7526 * We used lun->pr_key_count to calculate the 7527 * size to allocate. If it turns out the number of 7528 * initiators with the registered flag set is 7529 * larger than that (i.e. they haven't been kept in 7530 * sync), we've got a problem. 7531 */ 7532 if (key_count >= lun->pr_key_count) { 7533#ifdef NEEDTOPORT 7534 csevent_log(CSC_CTL | CSC_SHELF_SW | 7535 CTL_PR_ERROR, 7536 csevent_LogType_Fault, 7537 csevent_AlertLevel_Yellow, 7538 csevent_FRU_ShelfController, 7539 csevent_FRU_Firmware, 7540 csevent_FRU_Unknown, 7541 "registered keys %d >= key " 7542 "count %d", key_count, 7543 lun->pr_key_count); 7544#endif 7545 key_count++; 7546 continue; 7547 } 7548 scsi_u64to8b(key, res_keys->keys[key_count].key); 7549 key_count++; 7550 } 7551 break; 7552 } 7553 case SPRI_RR: { // read reservation 7554 struct scsi_per_res_in_rsrv *res; 7555 int tmp_len, header_only; 7556 7557 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7558 7559 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7560 7561 if (lun->flags & CTL_LUN_PR_RESERVED) 7562 { 7563 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7564 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7565 res->header.length); 7566 header_only = 0; 7567 } else { 7568 tmp_len = sizeof(struct scsi_per_res_in_header); 7569 scsi_ulto4b(0, res->header.length); 7570 header_only = 1; 7571 } 7572 7573 /* 7574 * We had to drop the lock to allocate our buffer, which 7575 * leaves time for someone to come in with another 7576 * persistent reservation. (That is unlikely, though, 7577 * since this should be the only persistent reservation 7578 * command active right now.) 7579 */ 7580 if (tmp_len != total_len) { 7581 mtx_unlock(&lun->lun_lock); 7582 free(ctsio->kern_data_ptr, M_CTL); 7583 printf("%s: reservation status changed, retrying\n", 7584 __func__); 7585 goto retry; 7586 } 7587 7588 /* 7589 * No reservation held, so we're done. 7590 */ 7591 if (header_only != 0) 7592 break; 7593 7594 /* 7595 * If the registration is an All Registrants type, the key 7596 * is 0, since it doesn't really matter. 7597 */ 7598 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7599 scsi_u64to8b(ctl_get_prkey(lun, lun->pr_res_idx), 7600 res->data.reservation); 7601 } 7602 res->data.scopetype = lun->res_type; 7603 break; 7604 } 7605 case SPRI_RC: //report capabilities 7606 { 7607 struct scsi_per_res_cap *res_cap; 7608 uint16_t type_mask; 7609 7610 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7611 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7612 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_5; 7613 type_mask = SPRI_TM_WR_EX_AR | 7614 SPRI_TM_EX_AC_RO | 7615 SPRI_TM_WR_EX_RO | 7616 SPRI_TM_EX_AC | 7617 SPRI_TM_WR_EX | 7618 SPRI_TM_EX_AC_AR; 7619 scsi_ulto2b(type_mask, res_cap->type_mask); 7620 break; 7621 } 7622 case SPRI_RS: { // read full status 7623 struct scsi_per_res_in_full *res_status; 7624 struct scsi_per_res_in_full_desc *res_desc; 7625 struct ctl_port *port; 7626 int i, len; 7627 7628 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7629 7630 /* 7631 * We had to drop the lock to allocate our buffer, which 7632 * leaves time for someone to come in with another 7633 * persistent reservation. (That is unlikely, though, 7634 * since this should be the only persistent reservation 7635 * command active right now.) 7636 */ 7637 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7638 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7639 lun->pr_key_count)){ 7640 mtx_unlock(&lun->lun_lock); 7641 free(ctsio->kern_data_ptr, M_CTL); 7642 printf("%s: reservation length changed, retrying\n", 7643 __func__); 7644 goto retry; 7645 } 7646 7647 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 7648 7649 res_desc = &res_status->desc[0]; 7650 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7651 if ((key = ctl_get_prkey(lun, i)) == 0) 7652 continue; 7653 7654 scsi_u64to8b(key, res_desc->res_key.key); 7655 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7656 (lun->pr_res_idx == i || 7657 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7658 res_desc->flags = SPRI_FULL_R_HOLDER; 7659 res_desc->scopetype = lun->res_type; 7660 } 7661 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7662 res_desc->rel_trgt_port_id); 7663 len = 0; 7664 port = softc->ctl_ports[i / CTL_MAX_INIT_PER_PORT]; 7665 if (port != NULL) 7666 len = ctl_create_iid(port, 7667 i % CTL_MAX_INIT_PER_PORT, 7668 res_desc->transport_id); 7669 scsi_ulto4b(len, res_desc->additional_length); 7670 res_desc = (struct scsi_per_res_in_full_desc *) 7671 &res_desc->transport_id[len]; 7672 } 7673 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7674 res_status->header.length); 7675 break; 7676 } 7677 default: 7678 /* 7679 * This is a bug, because we just checked for this above, 7680 * and should have returned an error. 7681 */ 7682 panic("Invalid PR type %x", cdb->action); 7683 break; /* NOTREACHED */ 7684 } 7685 mtx_unlock(&lun->lun_lock); 7686 7687 ctl_set_success(ctsio); 7688 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7689 ctsio->be_move_done = ctl_config_move_done; 7690 ctl_datamove((union ctl_io *)ctsio); 7691 return (CTL_RETVAL_COMPLETE); 7692} 7693 7694/* 7695 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7696 * it should return. 7697 */ 7698static int 7699ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7700 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7701 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7702 struct scsi_per_res_out_parms* param) 7703{ 7704 union ctl_ha_msg persis_io; 7705 int i; 7706 7707 mtx_lock(&lun->lun_lock); 7708 if (sa_res_key == 0) { 7709 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7710 /* validate scope and type */ 7711 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7712 SPR_LU_SCOPE) { 7713 mtx_unlock(&lun->lun_lock); 7714 ctl_set_invalid_field(/*ctsio*/ ctsio, 7715 /*sks_valid*/ 1, 7716 /*command*/ 1, 7717 /*field*/ 2, 7718 /*bit_valid*/ 1, 7719 /*bit*/ 4); 7720 ctl_done((union ctl_io *)ctsio); 7721 return (1); 7722 } 7723 7724 if (type>8 || type==2 || type==4 || type==0) { 7725 mtx_unlock(&lun->lun_lock); 7726 ctl_set_invalid_field(/*ctsio*/ ctsio, 7727 /*sks_valid*/ 1, 7728 /*command*/ 1, 7729 /*field*/ 2, 7730 /*bit_valid*/ 1, 7731 /*bit*/ 0); 7732 ctl_done((union ctl_io *)ctsio); 7733 return (1); 7734 } 7735 7736 /* 7737 * Unregister everybody else and build UA for 7738 * them 7739 */ 7740 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7741 if (i == residx || ctl_get_prkey(lun, i) == 0) 7742 continue; 7743 7744 ctl_clr_prkey(lun, i); 7745 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7746 } 7747 lun->pr_key_count = 1; 7748 lun->res_type = type; 7749 if (lun->res_type != SPR_TYPE_WR_EX_AR 7750 && lun->res_type != SPR_TYPE_EX_AC_AR) 7751 lun->pr_res_idx = residx; 7752 lun->PRGeneration++; 7753 mtx_unlock(&lun->lun_lock); 7754 7755 /* send msg to other side */ 7756 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7757 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7758 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7759 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7760 persis_io.pr.pr_info.res_type = type; 7761 memcpy(persis_io.pr.pr_info.sa_res_key, 7762 param->serv_act_res_key, 7763 sizeof(param->serv_act_res_key)); 7764 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7765 sizeof(persis_io.pr), M_WAITOK); 7766 } else { 7767 /* not all registrants */ 7768 mtx_unlock(&lun->lun_lock); 7769 free(ctsio->kern_data_ptr, M_CTL); 7770 ctl_set_invalid_field(ctsio, 7771 /*sks_valid*/ 1, 7772 /*command*/ 0, 7773 /*field*/ 8, 7774 /*bit_valid*/ 0, 7775 /*bit*/ 0); 7776 ctl_done((union ctl_io *)ctsio); 7777 return (1); 7778 } 7779 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 7780 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 7781 int found = 0; 7782 7783 if (res_key == sa_res_key) { 7784 /* special case */ 7785 /* 7786 * The spec implies this is not good but doesn't 7787 * say what to do. There are two choices either 7788 * generate a res conflict or check condition 7789 * with illegal field in parameter data. Since 7790 * that is what is done when the sa_res_key is 7791 * zero I'll take that approach since this has 7792 * to do with the sa_res_key. 7793 */ 7794 mtx_unlock(&lun->lun_lock); 7795 free(ctsio->kern_data_ptr, M_CTL); 7796 ctl_set_invalid_field(ctsio, 7797 /*sks_valid*/ 1, 7798 /*command*/ 0, 7799 /*field*/ 8, 7800 /*bit_valid*/ 0, 7801 /*bit*/ 0); 7802 ctl_done((union ctl_io *)ctsio); 7803 return (1); 7804 } 7805 7806 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7807 if (ctl_get_prkey(lun, i) != sa_res_key) 7808 continue; 7809 7810 found = 1; 7811 ctl_clr_prkey(lun, i); 7812 lun->pr_key_count--; 7813 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7814 } 7815 if (!found) { 7816 mtx_unlock(&lun->lun_lock); 7817 free(ctsio->kern_data_ptr, M_CTL); 7818 ctl_set_reservation_conflict(ctsio); 7819 ctl_done((union ctl_io *)ctsio); 7820 return (CTL_RETVAL_COMPLETE); 7821 } 7822 lun->PRGeneration++; 7823 mtx_unlock(&lun->lun_lock); 7824 7825 /* send msg to other side */ 7826 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7827 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7828 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7829 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7830 persis_io.pr.pr_info.res_type = type; 7831 memcpy(persis_io.pr.pr_info.sa_res_key, 7832 param->serv_act_res_key, 7833 sizeof(param->serv_act_res_key)); 7834 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7835 sizeof(persis_io.pr), M_WAITOK); 7836 } else { 7837 /* Reserved but not all registrants */ 7838 /* sa_res_key is res holder */ 7839 if (sa_res_key == ctl_get_prkey(lun, lun->pr_res_idx)) { 7840 /* validate scope and type */ 7841 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7842 SPR_LU_SCOPE) { 7843 mtx_unlock(&lun->lun_lock); 7844 ctl_set_invalid_field(/*ctsio*/ ctsio, 7845 /*sks_valid*/ 1, 7846 /*command*/ 1, 7847 /*field*/ 2, 7848 /*bit_valid*/ 1, 7849 /*bit*/ 4); 7850 ctl_done((union ctl_io *)ctsio); 7851 return (1); 7852 } 7853 7854 if (type>8 || type==2 || type==4 || type==0) { 7855 mtx_unlock(&lun->lun_lock); 7856 ctl_set_invalid_field(/*ctsio*/ ctsio, 7857 /*sks_valid*/ 1, 7858 /*command*/ 1, 7859 /*field*/ 2, 7860 /*bit_valid*/ 1, 7861 /*bit*/ 0); 7862 ctl_done((union ctl_io *)ctsio); 7863 return (1); 7864 } 7865 7866 /* 7867 * Do the following: 7868 * if sa_res_key != res_key remove all 7869 * registrants w/sa_res_key and generate UA 7870 * for these registrants(Registrations 7871 * Preempted) if it wasn't an exclusive 7872 * reservation generate UA(Reservations 7873 * Preempted) for all other registered nexuses 7874 * if the type has changed. Establish the new 7875 * reservation and holder. If res_key and 7876 * sa_res_key are the same do the above 7877 * except don't unregister the res holder. 7878 */ 7879 7880 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7881 if (i == residx || ctl_get_prkey(lun, i) == 0) 7882 continue; 7883 7884 if (sa_res_key == ctl_get_prkey(lun, i)) { 7885 ctl_clr_prkey(lun, i); 7886 lun->pr_key_count--; 7887 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7888 } else if (type != lun->res_type 7889 && (lun->res_type == SPR_TYPE_WR_EX_RO 7890 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 7891 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 7892 } 7893 } 7894 lun->res_type = type; 7895 if (lun->res_type != SPR_TYPE_WR_EX_AR 7896 && lun->res_type != SPR_TYPE_EX_AC_AR) 7897 lun->pr_res_idx = residx; 7898 else 7899 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 7900 lun->PRGeneration++; 7901 mtx_unlock(&lun->lun_lock); 7902 7903 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7904 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7905 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7906 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7907 persis_io.pr.pr_info.res_type = type; 7908 memcpy(persis_io.pr.pr_info.sa_res_key, 7909 param->serv_act_res_key, 7910 sizeof(param->serv_act_res_key)); 7911 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7912 sizeof(persis_io.pr), M_WAITOK); 7913 } else { 7914 /* 7915 * sa_res_key is not the res holder just 7916 * remove registrants 7917 */ 7918 int found=0; 7919 7920 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7921 if (sa_res_key != ctl_get_prkey(lun, i)) 7922 continue; 7923 7924 found = 1; 7925 ctl_clr_prkey(lun, i); 7926 lun->pr_key_count--; 7927 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7928 } 7929 7930 if (!found) { 7931 mtx_unlock(&lun->lun_lock); 7932 free(ctsio->kern_data_ptr, M_CTL); 7933 ctl_set_reservation_conflict(ctsio); 7934 ctl_done((union ctl_io *)ctsio); 7935 return (1); 7936 } 7937 lun->PRGeneration++; 7938 mtx_unlock(&lun->lun_lock); 7939 7940 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7941 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7942 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7943 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7944 persis_io.pr.pr_info.res_type = type; 7945 memcpy(persis_io.pr.pr_info.sa_res_key, 7946 param->serv_act_res_key, 7947 sizeof(param->serv_act_res_key)); 7948 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7949 sizeof(persis_io.pr), M_WAITOK); 7950 } 7951 } 7952 return (0); 7953} 7954 7955static void 7956ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 7957{ 7958 uint64_t sa_res_key; 7959 int i; 7960 7961 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 7962 7963 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 7964 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 7965 || sa_res_key != ctl_get_prkey(lun, lun->pr_res_idx)) { 7966 if (sa_res_key == 0) { 7967 /* 7968 * Unregister everybody else and build UA for 7969 * them 7970 */ 7971 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7972 if (i == msg->pr.pr_info.residx || 7973 ctl_get_prkey(lun, i) == 0) 7974 continue; 7975 7976 ctl_clr_prkey(lun, i); 7977 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7978 } 7979 7980 lun->pr_key_count = 1; 7981 lun->res_type = msg->pr.pr_info.res_type; 7982 if (lun->res_type != SPR_TYPE_WR_EX_AR 7983 && lun->res_type != SPR_TYPE_EX_AC_AR) 7984 lun->pr_res_idx = msg->pr.pr_info.residx; 7985 } else { 7986 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7987 if (sa_res_key == ctl_get_prkey(lun, i)) 7988 continue; 7989 7990 ctl_clr_prkey(lun, i); 7991 lun->pr_key_count--; 7992 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7993 } 7994 } 7995 } else { 7996 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7997 if (i == msg->pr.pr_info.residx || 7998 ctl_get_prkey(lun, i) == 0) 7999 continue; 8000 8001 if (sa_res_key == ctl_get_prkey(lun, i)) { 8002 ctl_clr_prkey(lun, i); 8003 lun->pr_key_count--; 8004 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8005 } else if (msg->pr.pr_info.res_type != lun->res_type 8006 && (lun->res_type == SPR_TYPE_WR_EX_RO 8007 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8008 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8009 } 8010 } 8011 lun->res_type = msg->pr.pr_info.res_type; 8012 if (lun->res_type != SPR_TYPE_WR_EX_AR 8013 && lun->res_type != SPR_TYPE_EX_AC_AR) 8014 lun->pr_res_idx = msg->pr.pr_info.residx; 8015 else 8016 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8017 } 8018 lun->PRGeneration++; 8019 8020} 8021 8022 8023int 8024ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8025{ 8026 int retval; 8027 u_int32_t param_len; 8028 struct scsi_per_res_out *cdb; 8029 struct ctl_lun *lun; 8030 struct scsi_per_res_out_parms* param; 8031 struct ctl_softc *softc; 8032 uint32_t residx; 8033 uint64_t res_key, sa_res_key, key; 8034 uint8_t type; 8035 union ctl_ha_msg persis_io; 8036 int i; 8037 8038 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8039 8040 retval = CTL_RETVAL_COMPLETE; 8041 8042 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8043 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8044 softc = lun->ctl_softc; 8045 8046 /* 8047 * We only support whole-LUN scope. The scope & type are ignored for 8048 * register, register and ignore existing key and clear. 8049 * We sometimes ignore scope and type on preempts too!! 8050 * Verify reservation type here as well. 8051 */ 8052 type = cdb->scope_type & SPR_TYPE_MASK; 8053 if ((cdb->action == SPRO_RESERVE) 8054 || (cdb->action == SPRO_RELEASE)) { 8055 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8056 ctl_set_invalid_field(/*ctsio*/ ctsio, 8057 /*sks_valid*/ 1, 8058 /*command*/ 1, 8059 /*field*/ 2, 8060 /*bit_valid*/ 1, 8061 /*bit*/ 4); 8062 ctl_done((union ctl_io *)ctsio); 8063 return (CTL_RETVAL_COMPLETE); 8064 } 8065 8066 if (type>8 || type==2 || type==4 || type==0) { 8067 ctl_set_invalid_field(/*ctsio*/ ctsio, 8068 /*sks_valid*/ 1, 8069 /*command*/ 1, 8070 /*field*/ 2, 8071 /*bit_valid*/ 1, 8072 /*bit*/ 0); 8073 ctl_done((union ctl_io *)ctsio); 8074 return (CTL_RETVAL_COMPLETE); 8075 } 8076 } 8077 8078 param_len = scsi_4btoul(cdb->length); 8079 8080 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8081 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8082 ctsio->kern_data_len = param_len; 8083 ctsio->kern_total_len = param_len; 8084 ctsio->kern_data_resid = 0; 8085 ctsio->kern_rel_offset = 0; 8086 ctsio->kern_sg_entries = 0; 8087 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8088 ctsio->be_move_done = ctl_config_move_done; 8089 ctl_datamove((union ctl_io *)ctsio); 8090 8091 return (CTL_RETVAL_COMPLETE); 8092 } 8093 8094 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8095 8096 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 8097 res_key = scsi_8btou64(param->res_key.key); 8098 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8099 8100 /* 8101 * Validate the reservation key here except for SPRO_REG_IGNO 8102 * This must be done for all other service actions 8103 */ 8104 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8105 mtx_lock(&lun->lun_lock); 8106 if ((key = ctl_get_prkey(lun, residx)) != 0) { 8107 if (res_key != key) { 8108 /* 8109 * The current key passed in doesn't match 8110 * the one the initiator previously 8111 * registered. 8112 */ 8113 mtx_unlock(&lun->lun_lock); 8114 free(ctsio->kern_data_ptr, M_CTL); 8115 ctl_set_reservation_conflict(ctsio); 8116 ctl_done((union ctl_io *)ctsio); 8117 return (CTL_RETVAL_COMPLETE); 8118 } 8119 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8120 /* 8121 * We are not registered 8122 */ 8123 mtx_unlock(&lun->lun_lock); 8124 free(ctsio->kern_data_ptr, M_CTL); 8125 ctl_set_reservation_conflict(ctsio); 8126 ctl_done((union ctl_io *)ctsio); 8127 return (CTL_RETVAL_COMPLETE); 8128 } else if (res_key != 0) { 8129 /* 8130 * We are not registered and trying to register but 8131 * the register key isn't zero. 8132 */ 8133 mtx_unlock(&lun->lun_lock); 8134 free(ctsio->kern_data_ptr, M_CTL); 8135 ctl_set_reservation_conflict(ctsio); 8136 ctl_done((union ctl_io *)ctsio); 8137 return (CTL_RETVAL_COMPLETE); 8138 } 8139 mtx_unlock(&lun->lun_lock); 8140 } 8141 8142 switch (cdb->action & SPRO_ACTION_MASK) { 8143 case SPRO_REGISTER: 8144 case SPRO_REG_IGNO: { 8145 8146#if 0 8147 printf("Registration received\n"); 8148#endif 8149 8150 /* 8151 * We don't support any of these options, as we report in 8152 * the read capabilities request (see 8153 * ctl_persistent_reserve_in(), above). 8154 */ 8155 if ((param->flags & SPR_SPEC_I_PT) 8156 || (param->flags & SPR_ALL_TG_PT) 8157 || (param->flags & SPR_APTPL)) { 8158 int bit_ptr; 8159 8160 if (param->flags & SPR_APTPL) 8161 bit_ptr = 0; 8162 else if (param->flags & SPR_ALL_TG_PT) 8163 bit_ptr = 2; 8164 else /* SPR_SPEC_I_PT */ 8165 bit_ptr = 3; 8166 8167 free(ctsio->kern_data_ptr, M_CTL); 8168 ctl_set_invalid_field(ctsio, 8169 /*sks_valid*/ 1, 8170 /*command*/ 0, 8171 /*field*/ 20, 8172 /*bit_valid*/ 1, 8173 /*bit*/ bit_ptr); 8174 ctl_done((union ctl_io *)ctsio); 8175 return (CTL_RETVAL_COMPLETE); 8176 } 8177 8178 mtx_lock(&lun->lun_lock); 8179 8180 /* 8181 * The initiator wants to clear the 8182 * key/unregister. 8183 */ 8184 if (sa_res_key == 0) { 8185 if ((res_key == 0 8186 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8187 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8188 && ctl_get_prkey(lun, residx) == 0)) { 8189 mtx_unlock(&lun->lun_lock); 8190 goto done; 8191 } 8192 8193 ctl_clr_prkey(lun, residx); 8194 lun->pr_key_count--; 8195 8196 if (residx == lun->pr_res_idx) { 8197 lun->flags &= ~CTL_LUN_PR_RESERVED; 8198 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8199 8200 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8201 || lun->res_type == SPR_TYPE_EX_AC_RO) 8202 && lun->pr_key_count) { 8203 /* 8204 * If the reservation is a registrants 8205 * only type we need to generate a UA 8206 * for other registered inits. The 8207 * sense code should be RESERVATIONS 8208 * RELEASED 8209 */ 8210 8211 for (i = softc->init_min; i < softc->init_max; i++){ 8212 if (ctl_get_prkey(lun, i) == 0) 8213 continue; 8214 ctl_est_ua(lun, i, 8215 CTL_UA_RES_RELEASE); 8216 } 8217 } 8218 lun->res_type = 0; 8219 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8220 if (lun->pr_key_count==0) { 8221 lun->flags &= ~CTL_LUN_PR_RESERVED; 8222 lun->res_type = 0; 8223 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8224 } 8225 } 8226 lun->PRGeneration++; 8227 mtx_unlock(&lun->lun_lock); 8228 8229 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8230 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8231 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8232 persis_io.pr.pr_info.residx = residx; 8233 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8234 sizeof(persis_io.pr), M_WAITOK); 8235 } else /* sa_res_key != 0 */ { 8236 8237 /* 8238 * If we aren't registered currently then increment 8239 * the key count and set the registered flag. 8240 */ 8241 ctl_alloc_prkey(lun, residx); 8242 if (ctl_get_prkey(lun, residx) == 0) 8243 lun->pr_key_count++; 8244 ctl_set_prkey(lun, residx, sa_res_key); 8245 lun->PRGeneration++; 8246 mtx_unlock(&lun->lun_lock); 8247 8248 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8249 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8250 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8251 persis_io.pr.pr_info.residx = residx; 8252 memcpy(persis_io.pr.pr_info.sa_res_key, 8253 param->serv_act_res_key, 8254 sizeof(param->serv_act_res_key)); 8255 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8256 sizeof(persis_io.pr), M_WAITOK); 8257 } 8258 8259 break; 8260 } 8261 case SPRO_RESERVE: 8262#if 0 8263 printf("Reserve executed type %d\n", type); 8264#endif 8265 mtx_lock(&lun->lun_lock); 8266 if (lun->flags & CTL_LUN_PR_RESERVED) { 8267 /* 8268 * if this isn't the reservation holder and it's 8269 * not a "all registrants" type or if the type is 8270 * different then we have a conflict 8271 */ 8272 if ((lun->pr_res_idx != residx 8273 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8274 || lun->res_type != type) { 8275 mtx_unlock(&lun->lun_lock); 8276 free(ctsio->kern_data_ptr, M_CTL); 8277 ctl_set_reservation_conflict(ctsio); 8278 ctl_done((union ctl_io *)ctsio); 8279 return (CTL_RETVAL_COMPLETE); 8280 } 8281 mtx_unlock(&lun->lun_lock); 8282 } else /* create a reservation */ { 8283 /* 8284 * If it's not an "all registrants" type record 8285 * reservation holder 8286 */ 8287 if (type != SPR_TYPE_WR_EX_AR 8288 && type != SPR_TYPE_EX_AC_AR) 8289 lun->pr_res_idx = residx; /* Res holder */ 8290 else 8291 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8292 8293 lun->flags |= CTL_LUN_PR_RESERVED; 8294 lun->res_type = type; 8295 8296 mtx_unlock(&lun->lun_lock); 8297 8298 /* send msg to other side */ 8299 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8300 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8301 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8302 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8303 persis_io.pr.pr_info.res_type = type; 8304 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8305 sizeof(persis_io.pr), M_WAITOK); 8306 } 8307 break; 8308 8309 case SPRO_RELEASE: 8310 mtx_lock(&lun->lun_lock); 8311 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8312 /* No reservation exists return good status */ 8313 mtx_unlock(&lun->lun_lock); 8314 goto done; 8315 } 8316 /* 8317 * Is this nexus a reservation holder? 8318 */ 8319 if (lun->pr_res_idx != residx 8320 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8321 /* 8322 * not a res holder return good status but 8323 * do nothing 8324 */ 8325 mtx_unlock(&lun->lun_lock); 8326 goto done; 8327 } 8328 8329 if (lun->res_type != type) { 8330 mtx_unlock(&lun->lun_lock); 8331 free(ctsio->kern_data_ptr, M_CTL); 8332 ctl_set_illegal_pr_release(ctsio); 8333 ctl_done((union ctl_io *)ctsio); 8334 return (CTL_RETVAL_COMPLETE); 8335 } 8336 8337 /* okay to release */ 8338 lun->flags &= ~CTL_LUN_PR_RESERVED; 8339 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8340 lun->res_type = 0; 8341 8342 /* 8343 * if this isn't an exclusive access 8344 * res generate UA for all other 8345 * registrants. 8346 */ 8347 if (type != SPR_TYPE_EX_AC 8348 && type != SPR_TYPE_WR_EX) { 8349 for (i = softc->init_min; i < softc->init_max; i++) { 8350 if (i == residx || ctl_get_prkey(lun, i) == 0) 8351 continue; 8352 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8353 } 8354 } 8355 mtx_unlock(&lun->lun_lock); 8356 8357 /* Send msg to other side */ 8358 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8359 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8360 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8361 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8362 sizeof(persis_io.pr), M_WAITOK); 8363 break; 8364 8365 case SPRO_CLEAR: 8366 /* send msg to other side */ 8367 8368 mtx_lock(&lun->lun_lock); 8369 lun->flags &= ~CTL_LUN_PR_RESERVED; 8370 lun->res_type = 0; 8371 lun->pr_key_count = 0; 8372 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8373 8374 ctl_clr_prkey(lun, residx); 8375 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8376 if (ctl_get_prkey(lun, i) != 0) { 8377 ctl_clr_prkey(lun, i); 8378 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8379 } 8380 lun->PRGeneration++; 8381 mtx_unlock(&lun->lun_lock); 8382 8383 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8384 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8385 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8386 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8387 sizeof(persis_io.pr), M_WAITOK); 8388 break; 8389 8390 case SPRO_PREEMPT: 8391 case SPRO_PRE_ABO: { 8392 int nretval; 8393 8394 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8395 residx, ctsio, cdb, param); 8396 if (nretval != 0) 8397 return (CTL_RETVAL_COMPLETE); 8398 break; 8399 } 8400 default: 8401 panic("Invalid PR type %x", cdb->action); 8402 } 8403 8404done: 8405 free(ctsio->kern_data_ptr, M_CTL); 8406 ctl_set_success(ctsio); 8407 ctl_done((union ctl_io *)ctsio); 8408 8409 return (retval); 8410} 8411 8412/* 8413 * This routine is for handling a message from the other SC pertaining to 8414 * persistent reserve out. All the error checking will have been done 8415 * so only perorming the action need be done here to keep the two 8416 * in sync. 8417 */ 8418static void 8419ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8420{ 8421 struct ctl_lun *lun; 8422 struct ctl_softc *softc; 8423 int i; 8424 uint32_t residx, targ_lun; 8425 8426 softc = control_softc; 8427 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8428 mtx_lock(&softc->ctl_lock); 8429 if ((targ_lun >= CTL_MAX_LUNS) || 8430 ((lun = softc->ctl_luns[targ_lun]) == NULL)) { 8431 mtx_unlock(&softc->ctl_lock); 8432 return; 8433 } 8434 mtx_lock(&lun->lun_lock); 8435 mtx_unlock(&softc->ctl_lock); 8436 if (lun->flags & CTL_LUN_DISABLED) { 8437 mtx_unlock(&lun->lun_lock); 8438 return; 8439 } 8440 residx = ctl_get_initindex(&msg->hdr.nexus); 8441 switch(msg->pr.pr_info.action) { 8442 case CTL_PR_REG_KEY: 8443 ctl_alloc_prkey(lun, msg->pr.pr_info.residx); 8444 if (ctl_get_prkey(lun, msg->pr.pr_info.residx) == 0) 8445 lun->pr_key_count++; 8446 ctl_set_prkey(lun, msg->pr.pr_info.residx, 8447 scsi_8btou64(msg->pr.pr_info.sa_res_key)); 8448 lun->PRGeneration++; 8449 break; 8450 8451 case CTL_PR_UNREG_KEY: 8452 ctl_clr_prkey(lun, msg->pr.pr_info.residx); 8453 lun->pr_key_count--; 8454 8455 /* XXX Need to see if the reservation has been released */ 8456 /* if so do we need to generate UA? */ 8457 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8458 lun->flags &= ~CTL_LUN_PR_RESERVED; 8459 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8460 8461 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8462 || lun->res_type == SPR_TYPE_EX_AC_RO) 8463 && lun->pr_key_count) { 8464 /* 8465 * If the reservation is a registrants 8466 * only type we need to generate a UA 8467 * for other registered inits. The 8468 * sense code should be RESERVATIONS 8469 * RELEASED 8470 */ 8471 8472 for (i = softc->init_min; i < softc->init_max; i++) { 8473 if (ctl_get_prkey(lun, i) == 0) 8474 continue; 8475 8476 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8477 } 8478 } 8479 lun->res_type = 0; 8480 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8481 if (lun->pr_key_count==0) { 8482 lun->flags &= ~CTL_LUN_PR_RESERVED; 8483 lun->res_type = 0; 8484 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8485 } 8486 } 8487 lun->PRGeneration++; 8488 break; 8489 8490 case CTL_PR_RESERVE: 8491 lun->flags |= CTL_LUN_PR_RESERVED; 8492 lun->res_type = msg->pr.pr_info.res_type; 8493 lun->pr_res_idx = msg->pr.pr_info.residx; 8494 8495 break; 8496 8497 case CTL_PR_RELEASE: 8498 /* 8499 * if this isn't an exclusive access res generate UA for all 8500 * other registrants. 8501 */ 8502 if (lun->res_type != SPR_TYPE_EX_AC 8503 && lun->res_type != SPR_TYPE_WR_EX) { 8504 for (i = softc->init_min; i < softc->init_max; i++) 8505 if (i == residx || ctl_get_prkey(lun, i) == 0) 8506 continue; 8507 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8508 } 8509 8510 lun->flags &= ~CTL_LUN_PR_RESERVED; 8511 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8512 lun->res_type = 0; 8513 break; 8514 8515 case CTL_PR_PREEMPT: 8516 ctl_pro_preempt_other(lun, msg); 8517 break; 8518 case CTL_PR_CLEAR: 8519 lun->flags &= ~CTL_LUN_PR_RESERVED; 8520 lun->res_type = 0; 8521 lun->pr_key_count = 0; 8522 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8523 8524 for (i=0; i < CTL_MAX_INITIATORS; i++) { 8525 if (ctl_get_prkey(lun, i) == 0) 8526 continue; 8527 ctl_clr_prkey(lun, i); 8528 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8529 } 8530 lun->PRGeneration++; 8531 break; 8532 } 8533 8534 mtx_unlock(&lun->lun_lock); 8535} 8536 8537int 8538ctl_read_write(struct ctl_scsiio *ctsio) 8539{ 8540 struct ctl_lun *lun; 8541 struct ctl_lba_len_flags *lbalen; 8542 uint64_t lba; 8543 uint32_t num_blocks; 8544 int flags, retval; 8545 int isread; 8546 8547 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8548 8549 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8550 8551 flags = 0; 8552 retval = CTL_RETVAL_COMPLETE; 8553 8554 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8555 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8556 switch (ctsio->cdb[0]) { 8557 case READ_6: 8558 case WRITE_6: { 8559 struct scsi_rw_6 *cdb; 8560 8561 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8562 8563 lba = scsi_3btoul(cdb->addr); 8564 /* only 5 bits are valid in the most significant address byte */ 8565 lba &= 0x1fffff; 8566 num_blocks = cdb->length; 8567 /* 8568 * This is correct according to SBC-2. 8569 */ 8570 if (num_blocks == 0) 8571 num_blocks = 256; 8572 break; 8573 } 8574 case READ_10: 8575 case WRITE_10: { 8576 struct scsi_rw_10 *cdb; 8577 8578 cdb = (struct scsi_rw_10 *)ctsio->cdb; 8579 if (cdb->byte2 & SRW10_FUA) 8580 flags |= CTL_LLF_FUA; 8581 if (cdb->byte2 & SRW10_DPO) 8582 flags |= CTL_LLF_DPO; 8583 lba = scsi_4btoul(cdb->addr); 8584 num_blocks = scsi_2btoul(cdb->length); 8585 break; 8586 } 8587 case WRITE_VERIFY_10: { 8588 struct scsi_write_verify_10 *cdb; 8589 8590 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 8591 flags |= CTL_LLF_FUA; 8592 if (cdb->byte2 & SWV_DPO) 8593 flags |= CTL_LLF_DPO; 8594 lba = scsi_4btoul(cdb->addr); 8595 num_blocks = scsi_2btoul(cdb->length); 8596 break; 8597 } 8598 case READ_12: 8599 case WRITE_12: { 8600 struct scsi_rw_12 *cdb; 8601 8602 cdb = (struct scsi_rw_12 *)ctsio->cdb; 8603 if (cdb->byte2 & SRW12_FUA) 8604 flags |= CTL_LLF_FUA; 8605 if (cdb->byte2 & SRW12_DPO) 8606 flags |= CTL_LLF_DPO; 8607 lba = scsi_4btoul(cdb->addr); 8608 num_blocks = scsi_4btoul(cdb->length); 8609 break; 8610 } 8611 case WRITE_VERIFY_12: { 8612 struct scsi_write_verify_12 *cdb; 8613 8614 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 8615 flags |= CTL_LLF_FUA; 8616 if (cdb->byte2 & SWV_DPO) 8617 flags |= CTL_LLF_DPO; 8618 lba = scsi_4btoul(cdb->addr); 8619 num_blocks = scsi_4btoul(cdb->length); 8620 break; 8621 } 8622 case READ_16: 8623 case WRITE_16: { 8624 struct scsi_rw_16 *cdb; 8625 8626 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8627 if (cdb->byte2 & SRW12_FUA) 8628 flags |= CTL_LLF_FUA; 8629 if (cdb->byte2 & SRW12_DPO) 8630 flags |= CTL_LLF_DPO; 8631 lba = scsi_8btou64(cdb->addr); 8632 num_blocks = scsi_4btoul(cdb->length); 8633 break; 8634 } 8635 case WRITE_ATOMIC_16: { 8636 struct scsi_rw_16 *cdb; 8637 8638 if (lun->be_lun->atomicblock == 0) { 8639 ctl_set_invalid_opcode(ctsio); 8640 ctl_done((union ctl_io *)ctsio); 8641 return (CTL_RETVAL_COMPLETE); 8642 } 8643 8644 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8645 if (cdb->byte2 & SRW12_FUA) 8646 flags |= CTL_LLF_FUA; 8647 if (cdb->byte2 & SRW12_DPO) 8648 flags |= CTL_LLF_DPO; 8649 lba = scsi_8btou64(cdb->addr); 8650 num_blocks = scsi_4btoul(cdb->length); 8651 if (num_blocks > lun->be_lun->atomicblock) { 8652 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 8653 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 8654 /*bit*/ 0); 8655 ctl_done((union ctl_io *)ctsio); 8656 return (CTL_RETVAL_COMPLETE); 8657 } 8658 break; 8659 } 8660 case WRITE_VERIFY_16: { 8661 struct scsi_write_verify_16 *cdb; 8662 8663 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 8664 flags |= CTL_LLF_FUA; 8665 if (cdb->byte2 & SWV_DPO) 8666 flags |= CTL_LLF_DPO; 8667 lba = scsi_8btou64(cdb->addr); 8668 num_blocks = scsi_4btoul(cdb->length); 8669 break; 8670 } 8671 default: 8672 /* 8673 * We got a command we don't support. This shouldn't 8674 * happen, commands should be filtered out above us. 8675 */ 8676 ctl_set_invalid_opcode(ctsio); 8677 ctl_done((union ctl_io *)ctsio); 8678 8679 return (CTL_RETVAL_COMPLETE); 8680 break; /* NOTREACHED */ 8681 } 8682 8683 /* 8684 * The first check is to make sure we're in bounds, the second 8685 * check is to catch wrap-around problems. If the lba + num blocks 8686 * is less than the lba, then we've wrapped around and the block 8687 * range is invalid anyway. 8688 */ 8689 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8690 || ((lba + num_blocks) < lba)) { 8691 ctl_set_lba_out_of_range(ctsio); 8692 ctl_done((union ctl_io *)ctsio); 8693 return (CTL_RETVAL_COMPLETE); 8694 } 8695 8696 /* 8697 * According to SBC-3, a transfer length of 0 is not an error. 8698 * Note that this cannot happen with WRITE(6) or READ(6), since 0 8699 * translates to 256 blocks for those commands. 8700 */ 8701 if (num_blocks == 0) { 8702 ctl_set_success(ctsio); 8703 ctl_done((union ctl_io *)ctsio); 8704 return (CTL_RETVAL_COMPLETE); 8705 } 8706 8707 /* Set FUA and/or DPO if caches are disabled. */ 8708 if (isread) { 8709 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 8710 SCP_RCD) != 0) 8711 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 8712 } else { 8713 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 8714 SCP_WCE) == 0) 8715 flags |= CTL_LLF_FUA; 8716 } 8717 8718 lbalen = (struct ctl_lba_len_flags *) 8719 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8720 lbalen->lba = lba; 8721 lbalen->len = num_blocks; 8722 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 8723 8724 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 8725 ctsio->kern_rel_offset = 0; 8726 8727 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 8728 8729 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8730 8731 return (retval); 8732} 8733 8734static int 8735ctl_cnw_cont(union ctl_io *io) 8736{ 8737 struct ctl_scsiio *ctsio; 8738 struct ctl_lun *lun; 8739 struct ctl_lba_len_flags *lbalen; 8740 int retval; 8741 8742 ctsio = &io->scsiio; 8743 ctsio->io_hdr.status = CTL_STATUS_NONE; 8744 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 8745 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8746 lbalen = (struct ctl_lba_len_flags *) 8747 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8748 lbalen->flags &= ~CTL_LLF_COMPARE; 8749 lbalen->flags |= CTL_LLF_WRITE; 8750 8751 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 8752 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8753 return (retval); 8754} 8755 8756int 8757ctl_cnw(struct ctl_scsiio *ctsio) 8758{ 8759 struct ctl_lun *lun; 8760 struct ctl_lba_len_flags *lbalen; 8761 uint64_t lba; 8762 uint32_t num_blocks; 8763 int flags, retval; 8764 8765 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8766 8767 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 8768 8769 flags = 0; 8770 retval = CTL_RETVAL_COMPLETE; 8771 8772 switch (ctsio->cdb[0]) { 8773 case COMPARE_AND_WRITE: { 8774 struct scsi_compare_and_write *cdb; 8775 8776 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 8777 if (cdb->byte2 & SRW10_FUA) 8778 flags |= CTL_LLF_FUA; 8779 if (cdb->byte2 & SRW10_DPO) 8780 flags |= CTL_LLF_DPO; 8781 lba = scsi_8btou64(cdb->addr); 8782 num_blocks = cdb->length; 8783 break; 8784 } 8785 default: 8786 /* 8787 * We got a command we don't support. This shouldn't 8788 * happen, commands should be filtered out above us. 8789 */ 8790 ctl_set_invalid_opcode(ctsio); 8791 ctl_done((union ctl_io *)ctsio); 8792 8793 return (CTL_RETVAL_COMPLETE); 8794 break; /* NOTREACHED */ 8795 } 8796 8797 /* 8798 * The first check is to make sure we're in bounds, the second 8799 * check is to catch wrap-around problems. If the lba + num blocks 8800 * is less than the lba, then we've wrapped around and the block 8801 * range is invalid anyway. 8802 */ 8803 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8804 || ((lba + num_blocks) < lba)) { 8805 ctl_set_lba_out_of_range(ctsio); 8806 ctl_done((union ctl_io *)ctsio); 8807 return (CTL_RETVAL_COMPLETE); 8808 } 8809 8810 /* 8811 * According to SBC-3, a transfer length of 0 is not an error. 8812 */ 8813 if (num_blocks == 0) { 8814 ctl_set_success(ctsio); 8815 ctl_done((union ctl_io *)ctsio); 8816 return (CTL_RETVAL_COMPLETE); 8817 } 8818 8819 /* Set FUA if write cache is disabled. */ 8820 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 8821 SCP_WCE) == 0) 8822 flags |= CTL_LLF_FUA; 8823 8824 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 8825 ctsio->kern_rel_offset = 0; 8826 8827 /* 8828 * Set the IO_CONT flag, so that if this I/O gets passed to 8829 * ctl_data_submit_done(), it'll get passed back to 8830 * ctl_ctl_cnw_cont() for further processing. 8831 */ 8832 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 8833 ctsio->io_cont = ctl_cnw_cont; 8834 8835 lbalen = (struct ctl_lba_len_flags *) 8836 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8837 lbalen->lba = lba; 8838 lbalen->len = num_blocks; 8839 lbalen->flags = CTL_LLF_COMPARE | flags; 8840 8841 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 8842 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8843 return (retval); 8844} 8845 8846int 8847ctl_verify(struct ctl_scsiio *ctsio) 8848{ 8849 struct ctl_lun *lun; 8850 struct ctl_lba_len_flags *lbalen; 8851 uint64_t lba; 8852 uint32_t num_blocks; 8853 int bytchk, flags; 8854 int retval; 8855 8856 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8857 8858 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 8859 8860 bytchk = 0; 8861 flags = CTL_LLF_FUA; 8862 retval = CTL_RETVAL_COMPLETE; 8863 8864 switch (ctsio->cdb[0]) { 8865 case VERIFY_10: { 8866 struct scsi_verify_10 *cdb; 8867 8868 cdb = (struct scsi_verify_10 *)ctsio->cdb; 8869 if (cdb->byte2 & SVFY_BYTCHK) 8870 bytchk = 1; 8871 if (cdb->byte2 & SVFY_DPO) 8872 flags |= CTL_LLF_DPO; 8873 lba = scsi_4btoul(cdb->addr); 8874 num_blocks = scsi_2btoul(cdb->length); 8875 break; 8876 } 8877 case VERIFY_12: { 8878 struct scsi_verify_12 *cdb; 8879 8880 cdb = (struct scsi_verify_12 *)ctsio->cdb; 8881 if (cdb->byte2 & SVFY_BYTCHK) 8882 bytchk = 1; 8883 if (cdb->byte2 & SVFY_DPO) 8884 flags |= CTL_LLF_DPO; 8885 lba = scsi_4btoul(cdb->addr); 8886 num_blocks = scsi_4btoul(cdb->length); 8887 break; 8888 } 8889 case VERIFY_16: { 8890 struct scsi_rw_16 *cdb; 8891 8892 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8893 if (cdb->byte2 & SVFY_BYTCHK) 8894 bytchk = 1; 8895 if (cdb->byte2 & SVFY_DPO) 8896 flags |= CTL_LLF_DPO; 8897 lba = scsi_8btou64(cdb->addr); 8898 num_blocks = scsi_4btoul(cdb->length); 8899 break; 8900 } 8901 default: 8902 /* 8903 * We got a command we don't support. This shouldn't 8904 * happen, commands should be filtered out above us. 8905 */ 8906 ctl_set_invalid_opcode(ctsio); 8907 ctl_done((union ctl_io *)ctsio); 8908 return (CTL_RETVAL_COMPLETE); 8909 } 8910 8911 /* 8912 * The first check is to make sure we're in bounds, the second 8913 * check is to catch wrap-around problems. If the lba + num blocks 8914 * is less than the lba, then we've wrapped around and the block 8915 * range is invalid anyway. 8916 */ 8917 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8918 || ((lba + num_blocks) < lba)) { 8919 ctl_set_lba_out_of_range(ctsio); 8920 ctl_done((union ctl_io *)ctsio); 8921 return (CTL_RETVAL_COMPLETE); 8922 } 8923 8924 /* 8925 * According to SBC-3, a transfer length of 0 is not an error. 8926 */ 8927 if (num_blocks == 0) { 8928 ctl_set_success(ctsio); 8929 ctl_done((union ctl_io *)ctsio); 8930 return (CTL_RETVAL_COMPLETE); 8931 } 8932 8933 lbalen = (struct ctl_lba_len_flags *) 8934 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8935 lbalen->lba = lba; 8936 lbalen->len = num_blocks; 8937 if (bytchk) { 8938 lbalen->flags = CTL_LLF_COMPARE | flags; 8939 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 8940 } else { 8941 lbalen->flags = CTL_LLF_VERIFY | flags; 8942 ctsio->kern_total_len = 0; 8943 } 8944 ctsio->kern_rel_offset = 0; 8945 8946 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 8947 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8948 return (retval); 8949} 8950 8951int 8952ctl_report_luns(struct ctl_scsiio *ctsio) 8953{ 8954 struct ctl_softc *softc = control_softc; 8955 struct scsi_report_luns *cdb; 8956 struct scsi_report_luns_data *lun_data; 8957 struct ctl_lun *lun, *request_lun; 8958 struct ctl_port *port; 8959 int num_luns, retval; 8960 uint32_t alloc_len, lun_datalen; 8961 int num_filled, well_known; 8962 uint32_t initidx, targ_lun_id, lun_id; 8963 8964 retval = CTL_RETVAL_COMPLETE; 8965 well_known = 0; 8966 8967 cdb = (struct scsi_report_luns *)ctsio->cdb; 8968 port = ctl_io_port(&ctsio->io_hdr); 8969 8970 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 8971 8972 mtx_lock(&softc->ctl_lock); 8973 num_luns = 0; 8974 for (targ_lun_id = 0; targ_lun_id < CTL_MAX_LUNS; targ_lun_id++) { 8975 if (ctl_lun_map_from_port(port, targ_lun_id) < CTL_MAX_LUNS) 8976 num_luns++; 8977 } 8978 mtx_unlock(&softc->ctl_lock); 8979 8980 switch (cdb->select_report) { 8981 case RPL_REPORT_DEFAULT: 8982 case RPL_REPORT_ALL: 8983 break; 8984 case RPL_REPORT_WELLKNOWN: 8985 well_known = 1; 8986 num_luns = 0; 8987 break; 8988 default: 8989 ctl_set_invalid_field(ctsio, 8990 /*sks_valid*/ 1, 8991 /*command*/ 1, 8992 /*field*/ 2, 8993 /*bit_valid*/ 0, 8994 /*bit*/ 0); 8995 ctl_done((union ctl_io *)ctsio); 8996 return (retval); 8997 break; /* NOTREACHED */ 8998 } 8999 9000 alloc_len = scsi_4btoul(cdb->length); 9001 /* 9002 * The initiator has to allocate at least 16 bytes for this request, 9003 * so he can at least get the header and the first LUN. Otherwise 9004 * we reject the request (per SPC-3 rev 14, section 6.21). 9005 */ 9006 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9007 sizeof(struct scsi_report_luns_lundata))) { 9008 ctl_set_invalid_field(ctsio, 9009 /*sks_valid*/ 1, 9010 /*command*/ 1, 9011 /*field*/ 6, 9012 /*bit_valid*/ 0, 9013 /*bit*/ 0); 9014 ctl_done((union ctl_io *)ctsio); 9015 return (retval); 9016 } 9017 9018 request_lun = (struct ctl_lun *) 9019 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9020 9021 lun_datalen = sizeof(*lun_data) + 9022 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9023 9024 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9025 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9026 ctsio->kern_sg_entries = 0; 9027 9028 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9029 9030 mtx_lock(&softc->ctl_lock); 9031 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9032 lun_id = ctl_lun_map_from_port(port, targ_lun_id); 9033 if (lun_id >= CTL_MAX_LUNS) 9034 continue; 9035 lun = softc->ctl_luns[lun_id]; 9036 if (lun == NULL) 9037 continue; 9038 9039 if (targ_lun_id <= 0xff) { 9040 /* 9041 * Peripheral addressing method, bus number 0. 9042 */ 9043 lun_data->luns[num_filled].lundata[0] = 9044 RPL_LUNDATA_ATYP_PERIPH; 9045 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9046 num_filled++; 9047 } else if (targ_lun_id <= 0x3fff) { 9048 /* 9049 * Flat addressing method. 9050 */ 9051 lun_data->luns[num_filled].lundata[0] = 9052 RPL_LUNDATA_ATYP_FLAT | (targ_lun_id >> 8); 9053 lun_data->luns[num_filled].lundata[1] = 9054 (targ_lun_id & 0xff); 9055 num_filled++; 9056 } else if (targ_lun_id <= 0xffffff) { 9057 /* 9058 * Extended flat addressing method. 9059 */ 9060 lun_data->luns[num_filled].lundata[0] = 9061 RPL_LUNDATA_ATYP_EXTLUN | 0x12; 9062 scsi_ulto3b(targ_lun_id, 9063 &lun_data->luns[num_filled].lundata[1]); 9064 num_filled++; 9065 } else { 9066 printf("ctl_report_luns: bogus LUN number %jd, " 9067 "skipping\n", (intmax_t)targ_lun_id); 9068 } 9069 /* 9070 * According to SPC-3, rev 14 section 6.21: 9071 * 9072 * "The execution of a REPORT LUNS command to any valid and 9073 * installed logical unit shall clear the REPORTED LUNS DATA 9074 * HAS CHANGED unit attention condition for all logical 9075 * units of that target with respect to the requesting 9076 * initiator. A valid and installed logical unit is one 9077 * having a PERIPHERAL QUALIFIER of 000b in the standard 9078 * INQUIRY data (see 6.4.2)." 9079 * 9080 * If request_lun is NULL, the LUN this report luns command 9081 * was issued to is either disabled or doesn't exist. In that 9082 * case, we shouldn't clear any pending lun change unit 9083 * attention. 9084 */ 9085 if (request_lun != NULL) { 9086 mtx_lock(&lun->lun_lock); 9087 ctl_clr_ua(lun, initidx, CTL_UA_LUN_CHANGE); 9088 mtx_unlock(&lun->lun_lock); 9089 } 9090 } 9091 mtx_unlock(&softc->ctl_lock); 9092 9093 /* 9094 * It's quite possible that we've returned fewer LUNs than we allocated 9095 * space for. Trim it. 9096 */ 9097 lun_datalen = sizeof(*lun_data) + 9098 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9099 9100 if (lun_datalen < alloc_len) { 9101 ctsio->residual = alloc_len - lun_datalen; 9102 ctsio->kern_data_len = lun_datalen; 9103 ctsio->kern_total_len = lun_datalen; 9104 } else { 9105 ctsio->residual = 0; 9106 ctsio->kern_data_len = alloc_len; 9107 ctsio->kern_total_len = alloc_len; 9108 } 9109 ctsio->kern_data_resid = 0; 9110 ctsio->kern_rel_offset = 0; 9111 ctsio->kern_sg_entries = 0; 9112 9113 /* 9114 * We set this to the actual data length, regardless of how much 9115 * space we actually have to return results. If the user looks at 9116 * this value, he'll know whether or not he allocated enough space 9117 * and reissue the command if necessary. We don't support well 9118 * known logical units, so if the user asks for that, return none. 9119 */ 9120 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9121 9122 /* 9123 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9124 * this request. 9125 */ 9126 ctl_set_success(ctsio); 9127 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9128 ctsio->be_move_done = ctl_config_move_done; 9129 ctl_datamove((union ctl_io *)ctsio); 9130 return (retval); 9131} 9132 9133int 9134ctl_request_sense(struct ctl_scsiio *ctsio) 9135{ 9136 struct scsi_request_sense *cdb; 9137 struct scsi_sense_data *sense_ptr; 9138 struct ctl_softc *ctl_softc; 9139 struct ctl_lun *lun; 9140 uint32_t initidx; 9141 int have_error; 9142 scsi_sense_data_type sense_format; 9143 ctl_ua_type ua_type; 9144 9145 cdb = (struct scsi_request_sense *)ctsio->cdb; 9146 9147 ctl_softc = control_softc; 9148 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9149 9150 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9151 9152 /* 9153 * Determine which sense format the user wants. 9154 */ 9155 if (cdb->byte2 & SRS_DESC) 9156 sense_format = SSD_TYPE_DESC; 9157 else 9158 sense_format = SSD_TYPE_FIXED; 9159 9160 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9161 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9162 ctsio->kern_sg_entries = 0; 9163 9164 /* 9165 * struct scsi_sense_data, which is currently set to 256 bytes, is 9166 * larger than the largest allowed value for the length field in the 9167 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9168 */ 9169 ctsio->residual = 0; 9170 ctsio->kern_data_len = cdb->length; 9171 ctsio->kern_total_len = cdb->length; 9172 9173 ctsio->kern_data_resid = 0; 9174 ctsio->kern_rel_offset = 0; 9175 ctsio->kern_sg_entries = 0; 9176 9177 /* 9178 * If we don't have a LUN, we don't have any pending sense. 9179 */ 9180 if (lun == NULL) 9181 goto no_sense; 9182 9183 have_error = 0; 9184 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9185 /* 9186 * Check for pending sense, and then for pending unit attentions. 9187 * Pending sense gets returned first, then pending unit attentions. 9188 */ 9189 mtx_lock(&lun->lun_lock); 9190#ifdef CTL_WITH_CA 9191 if (ctl_is_set(lun->have_ca, initidx)) { 9192 scsi_sense_data_type stored_format; 9193 9194 /* 9195 * Check to see which sense format was used for the stored 9196 * sense data. 9197 */ 9198 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9199 9200 /* 9201 * If the user requested a different sense format than the 9202 * one we stored, then we need to convert it to the other 9203 * format. If we're going from descriptor to fixed format 9204 * sense data, we may lose things in translation, depending 9205 * on what options were used. 9206 * 9207 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9208 * for some reason we'll just copy it out as-is. 9209 */ 9210 if ((stored_format == SSD_TYPE_FIXED) 9211 && (sense_format == SSD_TYPE_DESC)) 9212 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9213 &lun->pending_sense[initidx], 9214 (struct scsi_sense_data_desc *)sense_ptr); 9215 else if ((stored_format == SSD_TYPE_DESC) 9216 && (sense_format == SSD_TYPE_FIXED)) 9217 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9218 &lun->pending_sense[initidx], 9219 (struct scsi_sense_data_fixed *)sense_ptr); 9220 else 9221 memcpy(sense_ptr, &lun->pending_sense[initidx], 9222 MIN(sizeof(*sense_ptr), 9223 sizeof(lun->pending_sense[initidx]))); 9224 9225 ctl_clear_mask(lun->have_ca, initidx); 9226 have_error = 1; 9227 } else 9228#endif 9229 { 9230 ua_type = ctl_build_ua(lun, initidx, sense_ptr, sense_format); 9231 if (ua_type != CTL_UA_NONE) 9232 have_error = 1; 9233 if (ua_type == CTL_UA_LUN_CHANGE) { 9234 mtx_unlock(&lun->lun_lock); 9235 mtx_lock(&ctl_softc->ctl_lock); 9236 ctl_clr_ua_allluns(ctl_softc, initidx, ua_type); 9237 mtx_unlock(&ctl_softc->ctl_lock); 9238 mtx_lock(&lun->lun_lock); 9239 } 9240 9241 } 9242 mtx_unlock(&lun->lun_lock); 9243 9244 /* 9245 * We already have a pending error, return it. 9246 */ 9247 if (have_error != 0) { 9248 /* 9249 * We report the SCSI status as OK, since the status of the 9250 * request sense command itself is OK. 9251 * We report 0 for the sense length, because we aren't doing 9252 * autosense in this case. We're reporting sense as 9253 * parameter data. 9254 */ 9255 ctl_set_success(ctsio); 9256 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9257 ctsio->be_move_done = ctl_config_move_done; 9258 ctl_datamove((union ctl_io *)ctsio); 9259 return (CTL_RETVAL_COMPLETE); 9260 } 9261 9262no_sense: 9263 9264 /* 9265 * No sense information to report, so we report that everything is 9266 * okay. 9267 */ 9268 ctl_set_sense_data(sense_ptr, 9269 lun, 9270 sense_format, 9271 /*current_error*/ 1, 9272 /*sense_key*/ SSD_KEY_NO_SENSE, 9273 /*asc*/ 0x00, 9274 /*ascq*/ 0x00, 9275 SSD_ELEM_NONE); 9276 9277 /* 9278 * We report 0 for the sense length, because we aren't doing 9279 * autosense in this case. We're reporting sense as parameter data. 9280 */ 9281 ctl_set_success(ctsio); 9282 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9283 ctsio->be_move_done = ctl_config_move_done; 9284 ctl_datamove((union ctl_io *)ctsio); 9285 return (CTL_RETVAL_COMPLETE); 9286} 9287 9288int 9289ctl_tur(struct ctl_scsiio *ctsio) 9290{ 9291 9292 CTL_DEBUG_PRINT(("ctl_tur\n")); 9293 9294 ctl_set_success(ctsio); 9295 ctl_done((union ctl_io *)ctsio); 9296 9297 return (CTL_RETVAL_COMPLETE); 9298} 9299 9300/* 9301 * SCSI VPD page 0x00, the Supported VPD Pages page. 9302 */ 9303static int 9304ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9305{ 9306 struct scsi_vpd_supported_pages *pages; 9307 int sup_page_size; 9308 struct ctl_lun *lun; 9309 int p; 9310 9311 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9312 9313 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9314 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9315 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9316 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9317 ctsio->kern_sg_entries = 0; 9318 9319 if (sup_page_size < alloc_len) { 9320 ctsio->residual = alloc_len - sup_page_size; 9321 ctsio->kern_data_len = sup_page_size; 9322 ctsio->kern_total_len = sup_page_size; 9323 } else { 9324 ctsio->residual = 0; 9325 ctsio->kern_data_len = alloc_len; 9326 ctsio->kern_total_len = alloc_len; 9327 } 9328 ctsio->kern_data_resid = 0; 9329 ctsio->kern_rel_offset = 0; 9330 ctsio->kern_sg_entries = 0; 9331 9332 /* 9333 * The control device is always connected. The disk device, on the 9334 * other hand, may not be online all the time. Need to change this 9335 * to figure out whether the disk device is actually online or not. 9336 */ 9337 if (lun != NULL) 9338 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9339 lun->be_lun->lun_type; 9340 else 9341 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9342 9343 p = 0; 9344 /* Supported VPD pages */ 9345 pages->page_list[p++] = SVPD_SUPPORTED_PAGES; 9346 /* Serial Number */ 9347 pages->page_list[p++] = SVPD_UNIT_SERIAL_NUMBER; 9348 /* Device Identification */ 9349 pages->page_list[p++] = SVPD_DEVICE_ID; 9350 /* Extended INQUIRY Data */ 9351 pages->page_list[p++] = SVPD_EXTENDED_INQUIRY_DATA; 9352 /* Mode Page Policy */ 9353 pages->page_list[p++] = SVPD_MODE_PAGE_POLICY; 9354 /* SCSI Ports */ 9355 pages->page_list[p++] = SVPD_SCSI_PORTS; 9356 /* Third-party Copy */ 9357 pages->page_list[p++] = SVPD_SCSI_TPC; 9358 if (lun != NULL && lun->be_lun->lun_type == T_DIRECT) { 9359 /* Block limits */ 9360 pages->page_list[p++] = SVPD_BLOCK_LIMITS; 9361 /* Block Device Characteristics */ 9362 pages->page_list[p++] = SVPD_BDC; 9363 /* Logical Block Provisioning */ 9364 pages->page_list[p++] = SVPD_LBP; 9365 } 9366 pages->length = p; 9367 9368 ctl_set_success(ctsio); 9369 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9370 ctsio->be_move_done = ctl_config_move_done; 9371 ctl_datamove((union ctl_io *)ctsio); 9372 return (CTL_RETVAL_COMPLETE); 9373} 9374 9375/* 9376 * SCSI VPD page 0x80, the Unit Serial Number page. 9377 */ 9378static int 9379ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9380{ 9381 struct scsi_vpd_unit_serial_number *sn_ptr; 9382 struct ctl_lun *lun; 9383 int data_len; 9384 9385 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9386 9387 data_len = 4 + CTL_SN_LEN; 9388 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9389 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9390 if (data_len < alloc_len) { 9391 ctsio->residual = alloc_len - data_len; 9392 ctsio->kern_data_len = data_len; 9393 ctsio->kern_total_len = data_len; 9394 } else { 9395 ctsio->residual = 0; 9396 ctsio->kern_data_len = alloc_len; 9397 ctsio->kern_total_len = alloc_len; 9398 } 9399 ctsio->kern_data_resid = 0; 9400 ctsio->kern_rel_offset = 0; 9401 ctsio->kern_sg_entries = 0; 9402 9403 /* 9404 * The control device is always connected. The disk device, on the 9405 * other hand, may not be online all the time. Need to change this 9406 * to figure out whether the disk device is actually online or not. 9407 */ 9408 if (lun != NULL) 9409 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9410 lun->be_lun->lun_type; 9411 else 9412 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9413 9414 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9415 sn_ptr->length = CTL_SN_LEN; 9416 /* 9417 * If we don't have a LUN, we just leave the serial number as 9418 * all spaces. 9419 */ 9420 if (lun != NULL) { 9421 strncpy((char *)sn_ptr->serial_num, 9422 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9423 } else 9424 memset(sn_ptr->serial_num, 0x20, CTL_SN_LEN); 9425 9426 ctl_set_success(ctsio); 9427 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9428 ctsio->be_move_done = ctl_config_move_done; 9429 ctl_datamove((union ctl_io *)ctsio); 9430 return (CTL_RETVAL_COMPLETE); 9431} 9432 9433 9434/* 9435 * SCSI VPD page 0x86, the Extended INQUIRY Data page. 9436 */ 9437static int 9438ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9439{ 9440 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9441 struct ctl_lun *lun; 9442 int data_len; 9443 9444 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9445 9446 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9447 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9448 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9449 ctsio->kern_sg_entries = 0; 9450 9451 if (data_len < alloc_len) { 9452 ctsio->residual = alloc_len - data_len; 9453 ctsio->kern_data_len = data_len; 9454 ctsio->kern_total_len = data_len; 9455 } else { 9456 ctsio->residual = 0; 9457 ctsio->kern_data_len = alloc_len; 9458 ctsio->kern_total_len = alloc_len; 9459 } 9460 ctsio->kern_data_resid = 0; 9461 ctsio->kern_rel_offset = 0; 9462 ctsio->kern_sg_entries = 0; 9463 9464 /* 9465 * The control device is always connected. The disk device, on the 9466 * other hand, may not be online all the time. 9467 */ 9468 if (lun != NULL) 9469 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9470 lun->be_lun->lun_type; 9471 else 9472 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9473 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9474 scsi_ulto2b(data_len - 4, eid_ptr->page_length); 9475 /* 9476 * We support head of queue, ordered and simple tags. 9477 */ 9478 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9479 /* 9480 * Volatile cache supported. 9481 */ 9482 eid_ptr->flags3 = SVPD_EID_V_SUP; 9483 9484 /* 9485 * This means that we clear the REPORTED LUNS DATA HAS CHANGED unit 9486 * attention for a particular IT nexus on all LUNs once we report 9487 * it to that nexus once. This bit is required as of SPC-4. 9488 */ 9489 eid_ptr->flags4 = SVPD_EID_LUICLT; 9490 9491 /* 9492 * XXX KDM in order to correctly answer this, we would need 9493 * information from the SIM to determine how much sense data it 9494 * can send. So this would really be a path inquiry field, most 9495 * likely. This can be set to a maximum of 252 according to SPC-4, 9496 * but the hardware may or may not be able to support that much. 9497 * 0 just means that the maximum sense data length is not reported. 9498 */ 9499 eid_ptr->max_sense_length = 0; 9500 9501 ctl_set_success(ctsio); 9502 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9503 ctsio->be_move_done = ctl_config_move_done; 9504 ctl_datamove((union ctl_io *)ctsio); 9505 return (CTL_RETVAL_COMPLETE); 9506} 9507 9508static int 9509ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9510{ 9511 struct scsi_vpd_mode_page_policy *mpp_ptr; 9512 struct ctl_lun *lun; 9513 int data_len; 9514 9515 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9516 9517 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9518 sizeof(struct scsi_vpd_mode_page_policy_descr); 9519 9520 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9521 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9522 ctsio->kern_sg_entries = 0; 9523 9524 if (data_len < alloc_len) { 9525 ctsio->residual = alloc_len - data_len; 9526 ctsio->kern_data_len = data_len; 9527 ctsio->kern_total_len = data_len; 9528 } else { 9529 ctsio->residual = 0; 9530 ctsio->kern_data_len = alloc_len; 9531 ctsio->kern_total_len = alloc_len; 9532 } 9533 ctsio->kern_data_resid = 0; 9534 ctsio->kern_rel_offset = 0; 9535 ctsio->kern_sg_entries = 0; 9536 9537 /* 9538 * The control device is always connected. The disk device, on the 9539 * other hand, may not be online all the time. 9540 */ 9541 if (lun != NULL) 9542 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9543 lun->be_lun->lun_type; 9544 else 9545 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9546 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9547 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9548 mpp_ptr->descr[0].page_code = 0x3f; 9549 mpp_ptr->descr[0].subpage_code = 0xff; 9550 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9551 9552 ctl_set_success(ctsio); 9553 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9554 ctsio->be_move_done = ctl_config_move_done; 9555 ctl_datamove((union ctl_io *)ctsio); 9556 return (CTL_RETVAL_COMPLETE); 9557} 9558 9559/* 9560 * SCSI VPD page 0x83, the Device Identification page. 9561 */ 9562static int 9563ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9564{ 9565 struct scsi_vpd_device_id *devid_ptr; 9566 struct scsi_vpd_id_descriptor *desc; 9567 struct ctl_softc *softc; 9568 struct ctl_lun *lun; 9569 struct ctl_port *port; 9570 int data_len; 9571 uint8_t proto; 9572 9573 softc = control_softc; 9574 9575 port = ctl_io_port(&ctsio->io_hdr); 9576 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9577 9578 data_len = sizeof(struct scsi_vpd_device_id) + 9579 sizeof(struct scsi_vpd_id_descriptor) + 9580 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9581 sizeof(struct scsi_vpd_id_descriptor) + 9582 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9583 if (lun && lun->lun_devid) 9584 data_len += lun->lun_devid->len; 9585 if (port && port->port_devid) 9586 data_len += port->port_devid->len; 9587 if (port && port->target_devid) 9588 data_len += port->target_devid->len; 9589 9590 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9591 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9592 ctsio->kern_sg_entries = 0; 9593 9594 if (data_len < alloc_len) { 9595 ctsio->residual = alloc_len - data_len; 9596 ctsio->kern_data_len = data_len; 9597 ctsio->kern_total_len = data_len; 9598 } else { 9599 ctsio->residual = 0; 9600 ctsio->kern_data_len = alloc_len; 9601 ctsio->kern_total_len = alloc_len; 9602 } 9603 ctsio->kern_data_resid = 0; 9604 ctsio->kern_rel_offset = 0; 9605 ctsio->kern_sg_entries = 0; 9606 9607 /* 9608 * The control device is always connected. The disk device, on the 9609 * other hand, may not be online all the time. 9610 */ 9611 if (lun != NULL) 9612 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9613 lun->be_lun->lun_type; 9614 else 9615 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9616 devid_ptr->page_code = SVPD_DEVICE_ID; 9617 scsi_ulto2b(data_len - 4, devid_ptr->length); 9618 9619 if (port && port->port_type == CTL_PORT_FC) 9620 proto = SCSI_PROTO_FC << 4; 9621 else if (port && port->port_type == CTL_PORT_ISCSI) 9622 proto = SCSI_PROTO_ISCSI << 4; 9623 else 9624 proto = SCSI_PROTO_SPI << 4; 9625 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9626 9627 /* 9628 * We're using a LUN association here. i.e., this device ID is a 9629 * per-LUN identifier. 9630 */ 9631 if (lun && lun->lun_devid) { 9632 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9633 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9634 lun->lun_devid->len); 9635 } 9636 9637 /* 9638 * This is for the WWPN which is a port association. 9639 */ 9640 if (port && port->port_devid) { 9641 memcpy(desc, port->port_devid->data, port->port_devid->len); 9642 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9643 port->port_devid->len); 9644 } 9645 9646 /* 9647 * This is for the Relative Target Port(type 4h) identifier 9648 */ 9649 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9650 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9651 SVPD_ID_TYPE_RELTARG; 9652 desc->length = 4; 9653 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9654 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9655 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9656 9657 /* 9658 * This is for the Target Port Group(type 5h) identifier 9659 */ 9660 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9661 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9662 SVPD_ID_TYPE_TPORTGRP; 9663 desc->length = 4; 9664 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / softc->port_cnt + 1, 9665 &desc->identifier[2]); 9666 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9667 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9668 9669 /* 9670 * This is for the Target identifier 9671 */ 9672 if (port && port->target_devid) { 9673 memcpy(desc, port->target_devid->data, port->target_devid->len); 9674 } 9675 9676 ctl_set_success(ctsio); 9677 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9678 ctsio->be_move_done = ctl_config_move_done; 9679 ctl_datamove((union ctl_io *)ctsio); 9680 return (CTL_RETVAL_COMPLETE); 9681} 9682 9683static int 9684ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 9685{ 9686 struct ctl_softc *softc = control_softc; 9687 struct scsi_vpd_scsi_ports *sp; 9688 struct scsi_vpd_port_designation *pd; 9689 struct scsi_vpd_port_designation_cont *pdc; 9690 struct ctl_lun *lun; 9691 struct ctl_port *port; 9692 int data_len, num_target_ports, iid_len, id_len; 9693 9694 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9695 9696 num_target_ports = 0; 9697 iid_len = 0; 9698 id_len = 0; 9699 mtx_lock(&softc->ctl_lock); 9700 STAILQ_FOREACH(port, &softc->port_list, links) { 9701 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9702 continue; 9703 if (lun != NULL && 9704 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 9705 continue; 9706 num_target_ports++; 9707 if (port->init_devid) 9708 iid_len += port->init_devid->len; 9709 if (port->port_devid) 9710 id_len += port->port_devid->len; 9711 } 9712 mtx_unlock(&softc->ctl_lock); 9713 9714 data_len = sizeof(struct scsi_vpd_scsi_ports) + 9715 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 9716 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 9717 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9718 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 9719 ctsio->kern_sg_entries = 0; 9720 9721 if (data_len < alloc_len) { 9722 ctsio->residual = alloc_len - data_len; 9723 ctsio->kern_data_len = data_len; 9724 ctsio->kern_total_len = data_len; 9725 } else { 9726 ctsio->residual = 0; 9727 ctsio->kern_data_len = alloc_len; 9728 ctsio->kern_total_len = alloc_len; 9729 } 9730 ctsio->kern_data_resid = 0; 9731 ctsio->kern_rel_offset = 0; 9732 ctsio->kern_sg_entries = 0; 9733 9734 /* 9735 * The control device is always connected. The disk device, on the 9736 * other hand, may not be online all the time. Need to change this 9737 * to figure out whether the disk device is actually online or not. 9738 */ 9739 if (lun != NULL) 9740 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 9741 lun->be_lun->lun_type; 9742 else 9743 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9744 9745 sp->page_code = SVPD_SCSI_PORTS; 9746 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 9747 sp->page_length); 9748 pd = &sp->design[0]; 9749 9750 mtx_lock(&softc->ctl_lock); 9751 STAILQ_FOREACH(port, &softc->port_list, links) { 9752 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9753 continue; 9754 if (lun != NULL && 9755 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 9756 continue; 9757 scsi_ulto2b(port->targ_port, pd->relative_port_id); 9758 if (port->init_devid) { 9759 iid_len = port->init_devid->len; 9760 memcpy(pd->initiator_transportid, 9761 port->init_devid->data, port->init_devid->len); 9762 } else 9763 iid_len = 0; 9764 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 9765 pdc = (struct scsi_vpd_port_designation_cont *) 9766 (&pd->initiator_transportid[iid_len]); 9767 if (port->port_devid) { 9768 id_len = port->port_devid->len; 9769 memcpy(pdc->target_port_descriptors, 9770 port->port_devid->data, port->port_devid->len); 9771 } else 9772 id_len = 0; 9773 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 9774 pd = (struct scsi_vpd_port_designation *) 9775 ((uint8_t *)pdc->target_port_descriptors + id_len); 9776 } 9777 mtx_unlock(&softc->ctl_lock); 9778 9779 ctl_set_success(ctsio); 9780 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9781 ctsio->be_move_done = ctl_config_move_done; 9782 ctl_datamove((union ctl_io *)ctsio); 9783 return (CTL_RETVAL_COMPLETE); 9784} 9785 9786static int 9787ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 9788{ 9789 struct scsi_vpd_block_limits *bl_ptr; 9790 struct ctl_lun *lun; 9791 int bs; 9792 9793 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9794 9795 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 9796 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 9797 ctsio->kern_sg_entries = 0; 9798 9799 if (sizeof(*bl_ptr) < alloc_len) { 9800 ctsio->residual = alloc_len - sizeof(*bl_ptr); 9801 ctsio->kern_data_len = sizeof(*bl_ptr); 9802 ctsio->kern_total_len = sizeof(*bl_ptr); 9803 } else { 9804 ctsio->residual = 0; 9805 ctsio->kern_data_len = alloc_len; 9806 ctsio->kern_total_len = alloc_len; 9807 } 9808 ctsio->kern_data_resid = 0; 9809 ctsio->kern_rel_offset = 0; 9810 ctsio->kern_sg_entries = 0; 9811 9812 /* 9813 * The control device is always connected. The disk device, on the 9814 * other hand, may not be online all the time. Need to change this 9815 * to figure out whether the disk device is actually online or not. 9816 */ 9817 if (lun != NULL) 9818 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9819 lun->be_lun->lun_type; 9820 else 9821 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9822 9823 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 9824 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 9825 bl_ptr->max_cmp_write_len = 0xff; 9826 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 9827 if (lun != NULL) { 9828 bs = lun->be_lun->blocksize; 9829 scsi_ulto4b(lun->be_lun->opttxferlen, bl_ptr->opt_txfer_len); 9830 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 9831 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 9832 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 9833 if (lun->be_lun->ublockexp != 0) { 9834 scsi_ulto4b((1 << lun->be_lun->ublockexp), 9835 bl_ptr->opt_unmap_grain); 9836 scsi_ulto4b(0x80000000 | lun->be_lun->ublockoff, 9837 bl_ptr->unmap_grain_align); 9838 } 9839 } 9840 scsi_ulto4b(lun->be_lun->atomicblock, 9841 bl_ptr->max_atomic_transfer_length); 9842 scsi_ulto4b(0, bl_ptr->atomic_alignment); 9843 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 9844 } 9845 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 9846 9847 ctl_set_success(ctsio); 9848 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9849 ctsio->be_move_done = ctl_config_move_done; 9850 ctl_datamove((union ctl_io *)ctsio); 9851 return (CTL_RETVAL_COMPLETE); 9852} 9853 9854static int 9855ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 9856{ 9857 struct scsi_vpd_block_device_characteristics *bdc_ptr; 9858 struct ctl_lun *lun; 9859 const char *value; 9860 u_int i; 9861 9862 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9863 9864 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 9865 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 9866 ctsio->kern_sg_entries = 0; 9867 9868 if (sizeof(*bdc_ptr) < alloc_len) { 9869 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 9870 ctsio->kern_data_len = sizeof(*bdc_ptr); 9871 ctsio->kern_total_len = sizeof(*bdc_ptr); 9872 } else { 9873 ctsio->residual = 0; 9874 ctsio->kern_data_len = alloc_len; 9875 ctsio->kern_total_len = alloc_len; 9876 } 9877 ctsio->kern_data_resid = 0; 9878 ctsio->kern_rel_offset = 0; 9879 ctsio->kern_sg_entries = 0; 9880 9881 /* 9882 * The control device is always connected. The disk device, on the 9883 * other hand, may not be online all the time. Need to change this 9884 * to figure out whether the disk device is actually online or not. 9885 */ 9886 if (lun != NULL) 9887 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9888 lun->be_lun->lun_type; 9889 else 9890 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9891 bdc_ptr->page_code = SVPD_BDC; 9892 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 9893 if (lun != NULL && 9894 (value = ctl_get_opt(&lun->be_lun->options, "rpm")) != NULL) 9895 i = strtol(value, NULL, 0); 9896 else 9897 i = CTL_DEFAULT_ROTATION_RATE; 9898 scsi_ulto2b(i, bdc_ptr->medium_rotation_rate); 9899 if (lun != NULL && 9900 (value = ctl_get_opt(&lun->be_lun->options, "formfactor")) != NULL) 9901 i = strtol(value, NULL, 0); 9902 else 9903 i = 0; 9904 bdc_ptr->wab_wac_ff = (i & 0x0f); 9905 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 9906 9907 ctl_set_success(ctsio); 9908 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9909 ctsio->be_move_done = ctl_config_move_done; 9910 ctl_datamove((union ctl_io *)ctsio); 9911 return (CTL_RETVAL_COMPLETE); 9912} 9913 9914static int 9915ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 9916{ 9917 struct scsi_vpd_logical_block_prov *lbp_ptr; 9918 struct ctl_lun *lun; 9919 9920 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9921 9922 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 9923 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 9924 ctsio->kern_sg_entries = 0; 9925 9926 if (sizeof(*lbp_ptr) < alloc_len) { 9927 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 9928 ctsio->kern_data_len = sizeof(*lbp_ptr); 9929 ctsio->kern_total_len = sizeof(*lbp_ptr); 9930 } else { 9931 ctsio->residual = 0; 9932 ctsio->kern_data_len = alloc_len; 9933 ctsio->kern_total_len = alloc_len; 9934 } 9935 ctsio->kern_data_resid = 0; 9936 ctsio->kern_rel_offset = 0; 9937 ctsio->kern_sg_entries = 0; 9938 9939 /* 9940 * The control device is always connected. The disk device, on the 9941 * other hand, may not be online all the time. Need to change this 9942 * to figure out whether the disk device is actually online or not. 9943 */ 9944 if (lun != NULL) 9945 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9946 lun->be_lun->lun_type; 9947 else 9948 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9949 9950 lbp_ptr->page_code = SVPD_LBP; 9951 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 9952 lbp_ptr->threshold_exponent = CTL_LBP_EXPONENT; 9953 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 9954 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 9955 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 9956 lbp_ptr->prov_type = SVPD_LBP_THIN; 9957 } 9958 9959 ctl_set_success(ctsio); 9960 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9961 ctsio->be_move_done = ctl_config_move_done; 9962 ctl_datamove((union ctl_io *)ctsio); 9963 return (CTL_RETVAL_COMPLETE); 9964} 9965 9966/* 9967 * INQUIRY with the EVPD bit set. 9968 */ 9969static int 9970ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 9971{ 9972 struct ctl_lun *lun; 9973 struct scsi_inquiry *cdb; 9974 int alloc_len, retval; 9975 9976 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9977 cdb = (struct scsi_inquiry *)ctsio->cdb; 9978 alloc_len = scsi_2btoul(cdb->length); 9979 9980 switch (cdb->page_code) { 9981 case SVPD_SUPPORTED_PAGES: 9982 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 9983 break; 9984 case SVPD_UNIT_SERIAL_NUMBER: 9985 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 9986 break; 9987 case SVPD_DEVICE_ID: 9988 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 9989 break; 9990 case SVPD_EXTENDED_INQUIRY_DATA: 9991 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 9992 break; 9993 case SVPD_MODE_PAGE_POLICY: 9994 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 9995 break; 9996 case SVPD_SCSI_PORTS: 9997 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 9998 break; 9999 case SVPD_SCSI_TPC: 10000 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10001 break; 10002 case SVPD_BLOCK_LIMITS: 10003 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10004 goto err; 10005 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10006 break; 10007 case SVPD_BDC: 10008 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10009 goto err; 10010 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10011 break; 10012 case SVPD_LBP: 10013 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10014 goto err; 10015 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10016 break; 10017 default: 10018err: 10019 ctl_set_invalid_field(ctsio, 10020 /*sks_valid*/ 1, 10021 /*command*/ 1, 10022 /*field*/ 2, 10023 /*bit_valid*/ 0, 10024 /*bit*/ 0); 10025 ctl_done((union ctl_io *)ctsio); 10026 retval = CTL_RETVAL_COMPLETE; 10027 break; 10028 } 10029 10030 return (retval); 10031} 10032 10033/* 10034 * Standard INQUIRY data. 10035 */ 10036static int 10037ctl_inquiry_std(struct ctl_scsiio *ctsio) 10038{ 10039 struct scsi_inquiry_data *inq_ptr; 10040 struct scsi_inquiry *cdb; 10041 struct ctl_softc *softc; 10042 struct ctl_port *port; 10043 struct ctl_lun *lun; 10044 char *val; 10045 uint32_t alloc_len, data_len; 10046 ctl_port_type port_type; 10047 10048 softc = control_softc; 10049 10050 /* 10051 * Figure out whether we're talking to a Fibre Channel port or not. 10052 * We treat the ioctl front end, and any SCSI adapters, as packetized 10053 * SCSI front ends. 10054 */ 10055 port = ctl_io_port(&ctsio->io_hdr); 10056 if (port != NULL) 10057 port_type = port->port_type; 10058 else 10059 port_type = CTL_PORT_SCSI; 10060 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10061 port_type = CTL_PORT_SCSI; 10062 10063 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10064 cdb = (struct scsi_inquiry *)ctsio->cdb; 10065 alloc_len = scsi_2btoul(cdb->length); 10066 10067 /* 10068 * We malloc the full inquiry data size here and fill it 10069 * in. If the user only asks for less, we'll give him 10070 * that much. 10071 */ 10072 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10073 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10074 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10075 ctsio->kern_sg_entries = 0; 10076 ctsio->kern_data_resid = 0; 10077 ctsio->kern_rel_offset = 0; 10078 10079 if (data_len < alloc_len) { 10080 ctsio->residual = alloc_len - data_len; 10081 ctsio->kern_data_len = data_len; 10082 ctsio->kern_total_len = data_len; 10083 } else { 10084 ctsio->residual = 0; 10085 ctsio->kern_data_len = alloc_len; 10086 ctsio->kern_total_len = alloc_len; 10087 } 10088 10089 if (lun != NULL) { 10090 if ((lun->flags & CTL_LUN_PRIMARY_SC) || 10091 softc->ha_link >= CTL_HA_LINK_UNKNOWN) { 10092 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10093 lun->be_lun->lun_type; 10094 } else { 10095 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | 10096 lun->be_lun->lun_type; 10097 } 10098 } else 10099 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10100 10101 /* RMB in byte 2 is 0 */ 10102 inq_ptr->version = SCSI_REV_SPC4; 10103 10104 /* 10105 * According to SAM-3, even if a device only supports a single 10106 * level of LUN addressing, it should still set the HISUP bit: 10107 * 10108 * 4.9.1 Logical unit numbers overview 10109 * 10110 * All logical unit number formats described in this standard are 10111 * hierarchical in structure even when only a single level in that 10112 * hierarchy is used. The HISUP bit shall be set to one in the 10113 * standard INQUIRY data (see SPC-2) when any logical unit number 10114 * format described in this standard is used. Non-hierarchical 10115 * formats are outside the scope of this standard. 10116 * 10117 * Therefore we set the HiSup bit here. 10118 * 10119 * The reponse format is 2, per SPC-3. 10120 */ 10121 inq_ptr->response_format = SID_HiSup | 2; 10122 10123 inq_ptr->additional_length = data_len - 10124 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10125 CTL_DEBUG_PRINT(("additional_length = %d\n", 10126 inq_ptr->additional_length)); 10127 10128 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10129 /* 16 bit addressing */ 10130 if (port_type == CTL_PORT_SCSI) 10131 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10132 /* XXX set the SID_MultiP bit here if we're actually going to 10133 respond on multiple ports */ 10134 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10135 10136 /* 16 bit data bus, synchronous transfers */ 10137 if (port_type == CTL_PORT_SCSI) 10138 inq_ptr->flags = SID_WBus16 | SID_Sync; 10139 /* 10140 * XXX KDM do we want to support tagged queueing on the control 10141 * device at all? 10142 */ 10143 if ((lun == NULL) 10144 || (lun->be_lun->lun_type != T_PROCESSOR)) 10145 inq_ptr->flags |= SID_CmdQue; 10146 /* 10147 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10148 * We have 8 bytes for the vendor name, and 16 bytes for the device 10149 * name and 4 bytes for the revision. 10150 */ 10151 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10152 "vendor")) == NULL) { 10153 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10154 } else { 10155 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10156 strncpy(inq_ptr->vendor, val, 10157 min(sizeof(inq_ptr->vendor), strlen(val))); 10158 } 10159 if (lun == NULL) { 10160 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10161 sizeof(inq_ptr->product)); 10162 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10163 switch (lun->be_lun->lun_type) { 10164 case T_DIRECT: 10165 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10166 sizeof(inq_ptr->product)); 10167 break; 10168 case T_PROCESSOR: 10169 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10170 sizeof(inq_ptr->product)); 10171 break; 10172 default: 10173 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10174 sizeof(inq_ptr->product)); 10175 break; 10176 } 10177 } else { 10178 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10179 strncpy(inq_ptr->product, val, 10180 min(sizeof(inq_ptr->product), strlen(val))); 10181 } 10182 10183 /* 10184 * XXX make this a macro somewhere so it automatically gets 10185 * incremented when we make changes. 10186 */ 10187 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10188 "revision")) == NULL) { 10189 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10190 } else { 10191 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10192 strncpy(inq_ptr->revision, val, 10193 min(sizeof(inq_ptr->revision), strlen(val))); 10194 } 10195 10196 /* 10197 * For parallel SCSI, we support double transition and single 10198 * transition clocking. We also support QAS (Quick Arbitration 10199 * and Selection) and Information Unit transfers on both the 10200 * control and array devices. 10201 */ 10202 if (port_type == CTL_PORT_SCSI) 10203 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10204 SID_SPI_IUS; 10205 10206 /* SAM-5 (no version claimed) */ 10207 scsi_ulto2b(0x00A0, inq_ptr->version1); 10208 /* SPC-4 (no version claimed) */ 10209 scsi_ulto2b(0x0460, inq_ptr->version2); 10210 if (port_type == CTL_PORT_FC) { 10211 /* FCP-2 ANSI INCITS.350:2003 */ 10212 scsi_ulto2b(0x0917, inq_ptr->version3); 10213 } else if (port_type == CTL_PORT_SCSI) { 10214 /* SPI-4 ANSI INCITS.362:200x */ 10215 scsi_ulto2b(0x0B56, inq_ptr->version3); 10216 } else if (port_type == CTL_PORT_ISCSI) { 10217 /* iSCSI (no version claimed) */ 10218 scsi_ulto2b(0x0960, inq_ptr->version3); 10219 } else if (port_type == CTL_PORT_SAS) { 10220 /* SAS (no version claimed) */ 10221 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10222 } 10223 10224 if (lun == NULL) { 10225 /* SBC-4 (no version claimed) */ 10226 scsi_ulto2b(0x0600, inq_ptr->version4); 10227 } else { 10228 switch (lun->be_lun->lun_type) { 10229 case T_DIRECT: 10230 /* SBC-4 (no version claimed) */ 10231 scsi_ulto2b(0x0600, inq_ptr->version4); 10232 break; 10233 case T_PROCESSOR: 10234 default: 10235 break; 10236 } 10237 } 10238 10239 ctl_set_success(ctsio); 10240 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10241 ctsio->be_move_done = ctl_config_move_done; 10242 ctl_datamove((union ctl_io *)ctsio); 10243 return (CTL_RETVAL_COMPLETE); 10244} 10245 10246int 10247ctl_inquiry(struct ctl_scsiio *ctsio) 10248{ 10249 struct scsi_inquiry *cdb; 10250 int retval; 10251 10252 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10253 10254 cdb = (struct scsi_inquiry *)ctsio->cdb; 10255 if (cdb->byte2 & SI_EVPD) 10256 retval = ctl_inquiry_evpd(ctsio); 10257 else if (cdb->page_code == 0) 10258 retval = ctl_inquiry_std(ctsio); 10259 else { 10260 ctl_set_invalid_field(ctsio, 10261 /*sks_valid*/ 1, 10262 /*command*/ 1, 10263 /*field*/ 2, 10264 /*bit_valid*/ 0, 10265 /*bit*/ 0); 10266 ctl_done((union ctl_io *)ctsio); 10267 return (CTL_RETVAL_COMPLETE); 10268 } 10269 10270 return (retval); 10271} 10272 10273/* 10274 * For known CDB types, parse the LBA and length. 10275 */ 10276static int 10277ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10278{ 10279 if (io->io_hdr.io_type != CTL_IO_SCSI) 10280 return (1); 10281 10282 switch (io->scsiio.cdb[0]) { 10283 case COMPARE_AND_WRITE: { 10284 struct scsi_compare_and_write *cdb; 10285 10286 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10287 10288 *lba = scsi_8btou64(cdb->addr); 10289 *len = cdb->length; 10290 break; 10291 } 10292 case READ_6: 10293 case WRITE_6: { 10294 struct scsi_rw_6 *cdb; 10295 10296 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10297 10298 *lba = scsi_3btoul(cdb->addr); 10299 /* only 5 bits are valid in the most significant address byte */ 10300 *lba &= 0x1fffff; 10301 *len = cdb->length; 10302 break; 10303 } 10304 case READ_10: 10305 case WRITE_10: { 10306 struct scsi_rw_10 *cdb; 10307 10308 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10309 10310 *lba = scsi_4btoul(cdb->addr); 10311 *len = scsi_2btoul(cdb->length); 10312 break; 10313 } 10314 case WRITE_VERIFY_10: { 10315 struct scsi_write_verify_10 *cdb; 10316 10317 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10318 10319 *lba = scsi_4btoul(cdb->addr); 10320 *len = scsi_2btoul(cdb->length); 10321 break; 10322 } 10323 case READ_12: 10324 case WRITE_12: { 10325 struct scsi_rw_12 *cdb; 10326 10327 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10328 10329 *lba = scsi_4btoul(cdb->addr); 10330 *len = scsi_4btoul(cdb->length); 10331 break; 10332 } 10333 case WRITE_VERIFY_12: { 10334 struct scsi_write_verify_12 *cdb; 10335 10336 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10337 10338 *lba = scsi_4btoul(cdb->addr); 10339 *len = scsi_4btoul(cdb->length); 10340 break; 10341 } 10342 case READ_16: 10343 case WRITE_16: 10344 case WRITE_ATOMIC_16: { 10345 struct scsi_rw_16 *cdb; 10346 10347 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10348 10349 *lba = scsi_8btou64(cdb->addr); 10350 *len = scsi_4btoul(cdb->length); 10351 break; 10352 } 10353 case WRITE_VERIFY_16: { 10354 struct scsi_write_verify_16 *cdb; 10355 10356 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10357 10358 *lba = scsi_8btou64(cdb->addr); 10359 *len = scsi_4btoul(cdb->length); 10360 break; 10361 } 10362 case WRITE_SAME_10: { 10363 struct scsi_write_same_10 *cdb; 10364 10365 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10366 10367 *lba = scsi_4btoul(cdb->addr); 10368 *len = scsi_2btoul(cdb->length); 10369 break; 10370 } 10371 case WRITE_SAME_16: { 10372 struct scsi_write_same_16 *cdb; 10373 10374 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10375 10376 *lba = scsi_8btou64(cdb->addr); 10377 *len = scsi_4btoul(cdb->length); 10378 break; 10379 } 10380 case VERIFY_10: { 10381 struct scsi_verify_10 *cdb; 10382 10383 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10384 10385 *lba = scsi_4btoul(cdb->addr); 10386 *len = scsi_2btoul(cdb->length); 10387 break; 10388 } 10389 case VERIFY_12: { 10390 struct scsi_verify_12 *cdb; 10391 10392 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10393 10394 *lba = scsi_4btoul(cdb->addr); 10395 *len = scsi_4btoul(cdb->length); 10396 break; 10397 } 10398 case VERIFY_16: { 10399 struct scsi_verify_16 *cdb; 10400 10401 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10402 10403 *lba = scsi_8btou64(cdb->addr); 10404 *len = scsi_4btoul(cdb->length); 10405 break; 10406 } 10407 case UNMAP: { 10408 *lba = 0; 10409 *len = UINT64_MAX; 10410 break; 10411 } 10412 case SERVICE_ACTION_IN: { /* GET LBA STATUS */ 10413 struct scsi_get_lba_status *cdb; 10414 10415 cdb = (struct scsi_get_lba_status *)io->scsiio.cdb; 10416 *lba = scsi_8btou64(cdb->addr); 10417 *len = UINT32_MAX; 10418 break; 10419 } 10420 default: 10421 return (1); 10422 break; /* NOTREACHED */ 10423 } 10424 10425 return (0); 10426} 10427 10428static ctl_action 10429ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2, 10430 bool seq) 10431{ 10432 uint64_t endlba1, endlba2; 10433 10434 endlba1 = lba1 + len1 - (seq ? 0 : 1); 10435 endlba2 = lba2 + len2 - 1; 10436 10437 if ((endlba1 < lba2) || (endlba2 < lba1)) 10438 return (CTL_ACTION_PASS); 10439 else 10440 return (CTL_ACTION_BLOCK); 10441} 10442 10443static int 10444ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10445{ 10446 struct ctl_ptr_len_flags *ptrlen; 10447 struct scsi_unmap_desc *buf, *end, *range; 10448 uint64_t lba; 10449 uint32_t len; 10450 10451 /* If not UNMAP -- go other way. */ 10452 if (io->io_hdr.io_type != CTL_IO_SCSI || 10453 io->scsiio.cdb[0] != UNMAP) 10454 return (CTL_ACTION_ERROR); 10455 10456 /* If UNMAP without data -- block and wait for data. */ 10457 ptrlen = (struct ctl_ptr_len_flags *) 10458 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10459 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10460 ptrlen->ptr == NULL) 10461 return (CTL_ACTION_BLOCK); 10462 10463 /* UNMAP with data -- check for collision. */ 10464 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10465 end = buf + ptrlen->len / sizeof(*buf); 10466 for (range = buf; range < end; range++) { 10467 lba = scsi_8btou64(range->lba); 10468 len = scsi_4btoul(range->length); 10469 if ((lba < lba2 + len2) && (lba + len > lba2)) 10470 return (CTL_ACTION_BLOCK); 10471 } 10472 return (CTL_ACTION_PASS); 10473} 10474 10475static ctl_action 10476ctl_extent_check(union ctl_io *io1, union ctl_io *io2, bool seq) 10477{ 10478 uint64_t lba1, lba2; 10479 uint64_t len1, len2; 10480 int retval; 10481 10482 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10483 return (CTL_ACTION_ERROR); 10484 10485 retval = ctl_extent_check_unmap(io1, lba2, len2); 10486 if (retval != CTL_ACTION_ERROR) 10487 return (retval); 10488 10489 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10490 return (CTL_ACTION_ERROR); 10491 10492 return (ctl_extent_check_lba(lba1, len1, lba2, len2, seq)); 10493} 10494 10495static ctl_action 10496ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2) 10497{ 10498 uint64_t lba1, lba2; 10499 uint64_t len1, len2; 10500 10501 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10502 return (CTL_ACTION_ERROR); 10503 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10504 return (CTL_ACTION_ERROR); 10505 10506 if (lba1 + len1 == lba2) 10507 return (CTL_ACTION_BLOCK); 10508 return (CTL_ACTION_PASS); 10509} 10510 10511static ctl_action 10512ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10513 union ctl_io *ooa_io) 10514{ 10515 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10516 ctl_serialize_action *serialize_row; 10517 10518 /* 10519 * The initiator attempted multiple untagged commands at the same 10520 * time. Can't do that. 10521 */ 10522 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10523 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10524 && ((pending_io->io_hdr.nexus.targ_port == 10525 ooa_io->io_hdr.nexus.targ_port) 10526 && (pending_io->io_hdr.nexus.initid == 10527 ooa_io->io_hdr.nexus.initid)) 10528 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 10529 CTL_FLAG_STATUS_SENT)) == 0)) 10530 return (CTL_ACTION_OVERLAP); 10531 10532 /* 10533 * The initiator attempted to send multiple tagged commands with 10534 * the same ID. (It's fine if different initiators have the same 10535 * tag ID.) 10536 * 10537 * Even if all of those conditions are true, we don't kill the I/O 10538 * if the command ahead of us has been aborted. We won't end up 10539 * sending it to the FETD, and it's perfectly legal to resend a 10540 * command with the same tag number as long as the previous 10541 * instance of this tag number has been aborted somehow. 10542 */ 10543 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10544 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10545 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10546 && ((pending_io->io_hdr.nexus.targ_port == 10547 ooa_io->io_hdr.nexus.targ_port) 10548 && (pending_io->io_hdr.nexus.initid == 10549 ooa_io->io_hdr.nexus.initid)) 10550 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 10551 CTL_FLAG_STATUS_SENT)) == 0)) 10552 return (CTL_ACTION_OVERLAP_TAG); 10553 10554 /* 10555 * If we get a head of queue tag, SAM-3 says that we should 10556 * immediately execute it. 10557 * 10558 * What happens if this command would normally block for some other 10559 * reason? e.g. a request sense with a head of queue tag 10560 * immediately after a write. Normally that would block, but this 10561 * will result in its getting executed immediately... 10562 * 10563 * We currently return "pass" instead of "skip", so we'll end up 10564 * going through the rest of the queue to check for overlapped tags. 10565 * 10566 * XXX KDM check for other types of blockage first?? 10567 */ 10568 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10569 return (CTL_ACTION_PASS); 10570 10571 /* 10572 * Ordered tags have to block until all items ahead of them 10573 * have completed. If we get called with an ordered tag, we always 10574 * block, if something else is ahead of us in the queue. 10575 */ 10576 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 10577 return (CTL_ACTION_BLOCK); 10578 10579 /* 10580 * Simple tags get blocked until all head of queue and ordered tags 10581 * ahead of them have completed. I'm lumping untagged commands in 10582 * with simple tags here. XXX KDM is that the right thing to do? 10583 */ 10584 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10585 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 10586 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10587 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 10588 return (CTL_ACTION_BLOCK); 10589 10590 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 10591 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 10592 10593 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 10594 10595 switch (serialize_row[pending_entry->seridx]) { 10596 case CTL_SER_BLOCK: 10597 return (CTL_ACTION_BLOCK); 10598 case CTL_SER_EXTENT: 10599 return (ctl_extent_check(ooa_io, pending_io, 10600 (lun->be_lun && lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 10601 case CTL_SER_EXTENTOPT: 10602 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 10603 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 10604 return (ctl_extent_check(ooa_io, pending_io, 10605 (lun->be_lun && 10606 lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 10607 return (CTL_ACTION_PASS); 10608 case CTL_SER_EXTENTSEQ: 10609 if (lun->be_lun && lun->be_lun->serseq != CTL_LUN_SERSEQ_OFF) 10610 return (ctl_extent_check_seq(ooa_io, pending_io)); 10611 return (CTL_ACTION_PASS); 10612 case CTL_SER_PASS: 10613 return (CTL_ACTION_PASS); 10614 case CTL_SER_BLOCKOPT: 10615 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 10616 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 10617 return (CTL_ACTION_BLOCK); 10618 return (CTL_ACTION_PASS); 10619 case CTL_SER_SKIP: 10620 return (CTL_ACTION_SKIP); 10621 default: 10622 panic("invalid serialization value %d", 10623 serialize_row[pending_entry->seridx]); 10624 } 10625 10626 return (CTL_ACTION_ERROR); 10627} 10628 10629/* 10630 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 10631 * Assumptions: 10632 * - pending_io is generally either incoming, or on the blocked queue 10633 * - starting I/O is the I/O we want to start the check with. 10634 */ 10635static ctl_action 10636ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 10637 union ctl_io *starting_io) 10638{ 10639 union ctl_io *ooa_io; 10640 ctl_action action; 10641 10642 mtx_assert(&lun->lun_lock, MA_OWNED); 10643 10644 /* 10645 * Run back along the OOA queue, starting with the current 10646 * blocked I/O and going through every I/O before it on the 10647 * queue. If starting_io is NULL, we'll just end up returning 10648 * CTL_ACTION_PASS. 10649 */ 10650 for (ooa_io = starting_io; ooa_io != NULL; 10651 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 10652 ooa_links)){ 10653 10654 /* 10655 * This routine just checks to see whether 10656 * cur_blocked is blocked by ooa_io, which is ahead 10657 * of it in the queue. It doesn't queue/dequeue 10658 * cur_blocked. 10659 */ 10660 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 10661 switch (action) { 10662 case CTL_ACTION_BLOCK: 10663 case CTL_ACTION_OVERLAP: 10664 case CTL_ACTION_OVERLAP_TAG: 10665 case CTL_ACTION_SKIP: 10666 case CTL_ACTION_ERROR: 10667 return (action); 10668 break; /* NOTREACHED */ 10669 case CTL_ACTION_PASS: 10670 break; 10671 default: 10672 panic("invalid action %d", action); 10673 break; /* NOTREACHED */ 10674 } 10675 } 10676 10677 return (CTL_ACTION_PASS); 10678} 10679 10680/* 10681 * Assumptions: 10682 * - An I/O has just completed, and has been removed from the per-LUN OOA 10683 * queue, so some items on the blocked queue may now be unblocked. 10684 */ 10685static int 10686ctl_check_blocked(struct ctl_lun *lun) 10687{ 10688 struct ctl_softc *softc = lun->ctl_softc; 10689 union ctl_io *cur_blocked, *next_blocked; 10690 10691 mtx_assert(&lun->lun_lock, MA_OWNED); 10692 10693 /* 10694 * Run forward from the head of the blocked queue, checking each 10695 * entry against the I/Os prior to it on the OOA queue to see if 10696 * there is still any blockage. 10697 * 10698 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 10699 * with our removing a variable on it while it is traversing the 10700 * list. 10701 */ 10702 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 10703 cur_blocked != NULL; cur_blocked = next_blocked) { 10704 union ctl_io *prev_ooa; 10705 ctl_action action; 10706 10707 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 10708 blocked_links); 10709 10710 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 10711 ctl_ooaq, ooa_links); 10712 10713 /* 10714 * If cur_blocked happens to be the first item in the OOA 10715 * queue now, prev_ooa will be NULL, and the action 10716 * returned will just be CTL_ACTION_PASS. 10717 */ 10718 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 10719 10720 switch (action) { 10721 case CTL_ACTION_BLOCK: 10722 /* Nothing to do here, still blocked */ 10723 break; 10724 case CTL_ACTION_OVERLAP: 10725 case CTL_ACTION_OVERLAP_TAG: 10726 /* 10727 * This shouldn't happen! In theory we've already 10728 * checked this command for overlap... 10729 */ 10730 break; 10731 case CTL_ACTION_PASS: 10732 case CTL_ACTION_SKIP: { 10733 const struct ctl_cmd_entry *entry; 10734 10735 /* 10736 * The skip case shouldn't happen, this transaction 10737 * should have never made it onto the blocked queue. 10738 */ 10739 /* 10740 * This I/O is no longer blocked, we can remove it 10741 * from the blocked queue. Since this is a TAILQ 10742 * (doubly linked list), we can do O(1) removals 10743 * from any place on the list. 10744 */ 10745 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 10746 blocked_links); 10747 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 10748 10749 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 10750 (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)){ 10751 /* 10752 * Need to send IO back to original side to 10753 * run 10754 */ 10755 union ctl_ha_msg msg_info; 10756 10757 cur_blocked->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 10758 msg_info.hdr.original_sc = 10759 cur_blocked->io_hdr.original_sc; 10760 msg_info.hdr.serializing_sc = cur_blocked; 10761 msg_info.hdr.msg_type = CTL_MSG_R2R; 10762 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 10763 sizeof(msg_info.hdr), M_NOWAIT); 10764 break; 10765 } 10766 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 10767 10768 /* 10769 * Check this I/O for LUN state changes that may 10770 * have happened while this command was blocked. 10771 * The LUN state may have been changed by a command 10772 * ahead of us in the queue, so we need to re-check 10773 * for any states that can be caused by SCSI 10774 * commands. 10775 */ 10776 if (ctl_scsiio_lun_check(lun, entry, 10777 &cur_blocked->scsiio) == 0) { 10778 cur_blocked->io_hdr.flags |= 10779 CTL_FLAG_IS_WAS_ON_RTR; 10780 ctl_enqueue_rtr(cur_blocked); 10781 } else 10782 ctl_done(cur_blocked); 10783 break; 10784 } 10785 default: 10786 /* 10787 * This probably shouldn't happen -- we shouldn't 10788 * get CTL_ACTION_ERROR, or anything else. 10789 */ 10790 break; 10791 } 10792 } 10793 10794 return (CTL_RETVAL_COMPLETE); 10795} 10796 10797/* 10798 * This routine (with one exception) checks LUN flags that can be set by 10799 * commands ahead of us in the OOA queue. These flags have to be checked 10800 * when a command initially comes in, and when we pull a command off the 10801 * blocked queue and are preparing to execute it. The reason we have to 10802 * check these flags for commands on the blocked queue is that the LUN 10803 * state may have been changed by a command ahead of us while we're on the 10804 * blocked queue. 10805 * 10806 * Ordering is somewhat important with these checks, so please pay 10807 * careful attention to the placement of any new checks. 10808 */ 10809static int 10810ctl_scsiio_lun_check(struct ctl_lun *lun, 10811 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 10812{ 10813 struct ctl_softc *softc = lun->ctl_softc; 10814 int retval; 10815 uint32_t residx; 10816 10817 retval = 0; 10818 10819 mtx_assert(&lun->lun_lock, MA_OWNED); 10820 10821 /* 10822 * If this shelf is a secondary shelf controller, we may have to 10823 * reject some commands disallowed by HA mode and link state. 10824 */ 10825 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 10826 if (softc->ha_link == CTL_HA_LINK_OFFLINE && 10827 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 10828 ctl_set_lun_unavail(ctsio); 10829 retval = 1; 10830 goto bailout; 10831 } 10832 if ((lun->flags & CTL_LUN_PEER_SC_PRIMARY) == 0 && 10833 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 10834 ctl_set_lun_transit(ctsio); 10835 retval = 1; 10836 goto bailout; 10837 } 10838 if (softc->ha_mode == CTL_HA_MODE_ACT_STBY && 10839 (entry->flags & CTL_CMD_FLAG_OK_ON_STANDBY) == 0) { 10840 ctl_set_lun_standby(ctsio); 10841 retval = 1; 10842 goto bailout; 10843 } 10844 10845 /* The rest of checks are only done on executing side */ 10846 if (softc->ha_mode == CTL_HA_MODE_XFER) 10847 goto bailout; 10848 } 10849 10850 if (entry->pattern & CTL_LUN_PAT_WRITE) { 10851 if (lun->be_lun && 10852 lun->be_lun->flags & CTL_LUN_FLAG_READONLY) { 10853 ctl_set_hw_write_protected(ctsio); 10854 retval = 1; 10855 goto bailout; 10856 } 10857 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT] 10858 .eca_and_aen & SCP_SWP) != 0) { 10859 ctl_set_sense(ctsio, /*current_error*/ 1, 10860 /*sense_key*/ SSD_KEY_DATA_PROTECT, 10861 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 10862 retval = 1; 10863 goto bailout; 10864 } 10865 } 10866 10867 /* 10868 * Check for a reservation conflict. If this command isn't allowed 10869 * even on reserved LUNs, and if this initiator isn't the one who 10870 * reserved us, reject the command with a reservation conflict. 10871 */ 10872 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 10873 if ((lun->flags & CTL_LUN_RESERVED) 10874 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 10875 if (lun->res_idx != residx) { 10876 ctl_set_reservation_conflict(ctsio); 10877 retval = 1; 10878 goto bailout; 10879 } 10880 } 10881 10882 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0 || 10883 (entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV)) { 10884 /* No reservation or command is allowed. */; 10885 } else if ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_WRESV) && 10886 (lun->res_type == SPR_TYPE_WR_EX || 10887 lun->res_type == SPR_TYPE_WR_EX_RO || 10888 lun->res_type == SPR_TYPE_WR_EX_AR)) { 10889 /* The command is allowed for Write Exclusive resv. */; 10890 } else { 10891 /* 10892 * if we aren't registered or it's a res holder type 10893 * reservation and this isn't the res holder then set a 10894 * conflict. 10895 */ 10896 if (ctl_get_prkey(lun, residx) == 0 10897 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 10898 ctl_set_reservation_conflict(ctsio); 10899 retval = 1; 10900 goto bailout; 10901 } 10902 } 10903 10904 if ((lun->flags & CTL_LUN_OFFLINE) 10905 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STANDBY) == 0)) { 10906 ctl_set_lun_not_ready(ctsio); 10907 retval = 1; 10908 goto bailout; 10909 } 10910 10911 if ((lun->flags & CTL_LUN_STOPPED) 10912 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 10913 /* "Logical unit not ready, initializing cmd. required" */ 10914 ctl_set_lun_stopped(ctsio); 10915 retval = 1; 10916 goto bailout; 10917 } 10918 10919 if ((lun->flags & CTL_LUN_INOPERABLE) 10920 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 10921 /* "Medium format corrupted" */ 10922 ctl_set_medium_format_corrupted(ctsio); 10923 retval = 1; 10924 goto bailout; 10925 } 10926 10927bailout: 10928 return (retval); 10929} 10930 10931static void 10932ctl_failover_io(union ctl_io *io, int have_lock) 10933{ 10934 ctl_set_busy(&io->scsiio); 10935 ctl_done(io); 10936} 10937 10938static void 10939ctl_failover_lun(struct ctl_lun *lun) 10940{ 10941 struct ctl_softc *softc = lun->ctl_softc; 10942 struct ctl_io_hdr *io, *next_io; 10943 10944 CTL_DEBUG_PRINT(("FAILOVER for lun %ju\n", lun->lun)); 10945 if (softc->ha_mode == CTL_HA_MODE_XFER) { 10946 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 10947 /* We are master */ 10948 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 10949 if (io->flags & CTL_FLAG_IO_ACTIVE) { 10950 io->flags |= CTL_FLAG_ABORT; 10951 } else { /* This can be only due to DATAMOVE */ 10952 io->msg_type = CTL_MSG_DATAMOVE_DONE; 10953 io->flags |= CTL_FLAG_IO_ACTIVE; 10954 io->port_status = 31340; 10955 ctl_enqueue_isc((union ctl_io *)io); 10956 } 10957 } 10958 /* We are slave */ 10959 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 10960 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 10961 if (io->flags & CTL_FLAG_IO_ACTIVE) { 10962 io->flags |= CTL_FLAG_FAILOVER; 10963 } else { 10964 ctl_set_busy(&((union ctl_io *)io)-> 10965 scsiio); 10966 ctl_done((union ctl_io *)io); 10967 } 10968 } 10969 } 10970 } else { /* SERIALIZE modes */ 10971 TAILQ_FOREACH_SAFE(io, &lun->blocked_queue, blocked_links, 10972 next_io) { 10973 /* We are master */ 10974 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 10975 TAILQ_REMOVE(&lun->blocked_queue, io, 10976 blocked_links); 10977 io->flags &= ~CTL_FLAG_BLOCKED; 10978 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 10979 ctl_free_io((union ctl_io *)io); 10980 } 10981 } 10982 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 10983 /* We are master */ 10984 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 10985 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 10986 ctl_free_io((union ctl_io *)io); 10987 } 10988 /* We are slave */ 10989 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 10990 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 10991 if (!(io->flags & CTL_FLAG_IO_ACTIVE)) { 10992 ctl_set_busy(&((union ctl_io *)io)-> 10993 scsiio); 10994 ctl_done((union ctl_io *)io); 10995 } 10996 } 10997 } 10998 ctl_check_blocked(lun); 10999 } 11000} 11001 11002static int 11003ctl_scsiio_precheck(struct ctl_softc *softc, struct ctl_scsiio *ctsio) 11004{ 11005 struct ctl_lun *lun; 11006 const struct ctl_cmd_entry *entry; 11007 uint32_t initidx, targ_lun; 11008 int retval; 11009 11010 retval = 0; 11011 11012 lun = NULL; 11013 11014 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11015 if ((targ_lun < CTL_MAX_LUNS) 11016 && ((lun = softc->ctl_luns[targ_lun]) != NULL)) { 11017 /* 11018 * If the LUN is invalid, pretend that it doesn't exist. 11019 * It will go away as soon as all pending I/O has been 11020 * completed. 11021 */ 11022 mtx_lock(&lun->lun_lock); 11023 if (lun->flags & CTL_LUN_DISABLED) { 11024 mtx_unlock(&lun->lun_lock); 11025 lun = NULL; 11026 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11027 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11028 } else { 11029 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11030 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11031 lun->be_lun; 11032 11033 /* 11034 * Every I/O goes into the OOA queue for a 11035 * particular LUN, and stays there until completion. 11036 */ 11037#ifdef CTL_TIME_IO 11038 if (TAILQ_EMPTY(&lun->ooa_queue)) { 11039 lun->idle_time += getsbinuptime() - 11040 lun->last_busy; 11041 } 11042#endif 11043 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11044 ooa_links); 11045 } 11046 } else { 11047 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11048 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11049 } 11050 11051 /* Get command entry and return error if it is unsuppotyed. */ 11052 entry = ctl_validate_command(ctsio); 11053 if (entry == NULL) { 11054 if (lun) 11055 mtx_unlock(&lun->lun_lock); 11056 return (retval); 11057 } 11058 11059 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11060 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11061 11062 /* 11063 * Check to see whether we can send this command to LUNs that don't 11064 * exist. This should pretty much only be the case for inquiry 11065 * and request sense. Further checks, below, really require having 11066 * a LUN, so we can't really check the command anymore. Just put 11067 * it on the rtr queue. 11068 */ 11069 if (lun == NULL) { 11070 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) { 11071 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11072 ctl_enqueue_rtr((union ctl_io *)ctsio); 11073 return (retval); 11074 } 11075 11076 ctl_set_unsupported_lun(ctsio); 11077 ctl_done((union ctl_io *)ctsio); 11078 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11079 return (retval); 11080 } else { 11081 /* 11082 * Make sure we support this particular command on this LUN. 11083 * e.g., we don't support writes to the control LUN. 11084 */ 11085 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11086 mtx_unlock(&lun->lun_lock); 11087 ctl_set_invalid_opcode(ctsio); 11088 ctl_done((union ctl_io *)ctsio); 11089 return (retval); 11090 } 11091 } 11092 11093 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11094 11095#ifdef CTL_WITH_CA 11096 /* 11097 * If we've got a request sense, it'll clear the contingent 11098 * allegiance condition. Otherwise, if we have a CA condition for 11099 * this initiator, clear it, because it sent down a command other 11100 * than request sense. 11101 */ 11102 if ((ctsio->cdb[0] != REQUEST_SENSE) 11103 && (ctl_is_set(lun->have_ca, initidx))) 11104 ctl_clear_mask(lun->have_ca, initidx); 11105#endif 11106 11107 /* 11108 * If the command has this flag set, it handles its own unit 11109 * attention reporting, we shouldn't do anything. Otherwise we 11110 * check for any pending unit attentions, and send them back to the 11111 * initiator. We only do this when a command initially comes in, 11112 * not when we pull it off the blocked queue. 11113 * 11114 * According to SAM-3, section 5.3.2, the order that things get 11115 * presented back to the host is basically unit attentions caused 11116 * by some sort of reset event, busy status, reservation conflicts 11117 * or task set full, and finally any other status. 11118 * 11119 * One issue here is that some of the unit attentions we report 11120 * don't fall into the "reset" category (e.g. "reported luns data 11121 * has changed"). So reporting it here, before the reservation 11122 * check, may be technically wrong. I guess the only thing to do 11123 * would be to check for and report the reset events here, and then 11124 * check for the other unit attention types after we check for a 11125 * reservation conflict. 11126 * 11127 * XXX KDM need to fix this 11128 */ 11129 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11130 ctl_ua_type ua_type; 11131 scsi_sense_data_type sense_format; 11132 11133 if (lun->flags & CTL_LUN_SENSE_DESC) 11134 sense_format = SSD_TYPE_DESC; 11135 else 11136 sense_format = SSD_TYPE_FIXED; 11137 11138 ua_type = ctl_build_ua(lun, initidx, &ctsio->sense_data, 11139 sense_format); 11140 if (ua_type != CTL_UA_NONE) { 11141 mtx_unlock(&lun->lun_lock); 11142 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11143 ctsio->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 11144 ctsio->sense_len = SSD_FULL_SIZE; 11145 ctl_done((union ctl_io *)ctsio); 11146 return (retval); 11147 } 11148 } 11149 11150 11151 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 11152 mtx_unlock(&lun->lun_lock); 11153 ctl_done((union ctl_io *)ctsio); 11154 return (retval); 11155 } 11156 11157 /* 11158 * XXX CHD this is where we want to send IO to other side if 11159 * this LUN is secondary on this SC. We will need to make a copy 11160 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11161 * the copy we send as FROM_OTHER. 11162 * We also need to stuff the address of the original IO so we can 11163 * find it easily. Something similar will need be done on the other 11164 * side so when we are done we can find the copy. 11165 */ 11166 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 11167 (lun->flags & CTL_LUN_PEER_SC_PRIMARY) != 0) { 11168 union ctl_ha_msg msg_info; 11169 int isc_retval; 11170 11171 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11172 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11173 mtx_unlock(&lun->lun_lock); 11174 11175 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11176 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11177 msg_info.hdr.serializing_sc = NULL; 11178 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11179 msg_info.scsi.tag_num = ctsio->tag_num; 11180 msg_info.scsi.tag_type = ctsio->tag_type; 11181 msg_info.scsi.cdb_len = ctsio->cdb_len; 11182 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11183 11184 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11185 sizeof(msg_info.scsi) - sizeof(msg_info.scsi.sense_data), 11186 M_WAITOK)) > CTL_HA_STATUS_SUCCESS) { 11187 ctl_set_busy(ctsio); 11188 ctl_done((union ctl_io *)ctsio); 11189 return (retval); 11190 } 11191 return (retval); 11192 } 11193 11194 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11195 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11196 ctl_ooaq, ooa_links))) { 11197 case CTL_ACTION_BLOCK: 11198 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11199 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11200 blocked_links); 11201 mtx_unlock(&lun->lun_lock); 11202 return (retval); 11203 case CTL_ACTION_PASS: 11204 case CTL_ACTION_SKIP: 11205 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11206 mtx_unlock(&lun->lun_lock); 11207 ctl_enqueue_rtr((union ctl_io *)ctsio); 11208 break; 11209 case CTL_ACTION_OVERLAP: 11210 mtx_unlock(&lun->lun_lock); 11211 ctl_set_overlapped_cmd(ctsio); 11212 ctl_done((union ctl_io *)ctsio); 11213 break; 11214 case CTL_ACTION_OVERLAP_TAG: 11215 mtx_unlock(&lun->lun_lock); 11216 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11217 ctl_done((union ctl_io *)ctsio); 11218 break; 11219 case CTL_ACTION_ERROR: 11220 default: 11221 mtx_unlock(&lun->lun_lock); 11222 ctl_set_internal_failure(ctsio, 11223 /*sks_valid*/ 0, 11224 /*retry_count*/ 0); 11225 ctl_done((union ctl_io *)ctsio); 11226 break; 11227 } 11228 return (retval); 11229} 11230 11231const struct ctl_cmd_entry * 11232ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11233{ 11234 const struct ctl_cmd_entry *entry; 11235 int service_action; 11236 11237 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11238 if (sa) 11239 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11240 if (entry->flags & CTL_CMD_FLAG_SA5) { 11241 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11242 entry = &((const struct ctl_cmd_entry *) 11243 entry->execute)[service_action]; 11244 } 11245 return (entry); 11246} 11247 11248const struct ctl_cmd_entry * 11249ctl_validate_command(struct ctl_scsiio *ctsio) 11250{ 11251 const struct ctl_cmd_entry *entry; 11252 int i, sa; 11253 uint8_t diff; 11254 11255 entry = ctl_get_cmd_entry(ctsio, &sa); 11256 if (entry->execute == NULL) { 11257 if (sa) 11258 ctl_set_invalid_field(ctsio, 11259 /*sks_valid*/ 1, 11260 /*command*/ 1, 11261 /*field*/ 1, 11262 /*bit_valid*/ 1, 11263 /*bit*/ 4); 11264 else 11265 ctl_set_invalid_opcode(ctsio); 11266 ctl_done((union ctl_io *)ctsio); 11267 return (NULL); 11268 } 11269 KASSERT(entry->length > 0, 11270 ("Not defined length for command 0x%02x/0x%02x", 11271 ctsio->cdb[0], ctsio->cdb[1])); 11272 for (i = 1; i < entry->length; i++) { 11273 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11274 if (diff == 0) 11275 continue; 11276 ctl_set_invalid_field(ctsio, 11277 /*sks_valid*/ 1, 11278 /*command*/ 1, 11279 /*field*/ i, 11280 /*bit_valid*/ 1, 11281 /*bit*/ fls(diff) - 1); 11282 ctl_done((union ctl_io *)ctsio); 11283 return (NULL); 11284 } 11285 return (entry); 11286} 11287 11288static int 11289ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11290{ 11291 11292 switch (lun_type) { 11293 case T_PROCESSOR: 11294 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) && 11295 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11296 return (0); 11297 break; 11298 case T_DIRECT: 11299 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) && 11300 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11301 return (0); 11302 break; 11303 default: 11304 return (0); 11305 } 11306 return (1); 11307} 11308 11309static int 11310ctl_scsiio(struct ctl_scsiio *ctsio) 11311{ 11312 int retval; 11313 const struct ctl_cmd_entry *entry; 11314 11315 retval = CTL_RETVAL_COMPLETE; 11316 11317 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11318 11319 entry = ctl_get_cmd_entry(ctsio, NULL); 11320 11321 /* 11322 * If this I/O has been aborted, just send it straight to 11323 * ctl_done() without executing it. 11324 */ 11325 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11326 ctl_done((union ctl_io *)ctsio); 11327 goto bailout; 11328 } 11329 11330 /* 11331 * All the checks should have been handled by ctl_scsiio_precheck(). 11332 * We should be clear now to just execute the I/O. 11333 */ 11334 retval = entry->execute(ctsio); 11335 11336bailout: 11337 return (retval); 11338} 11339 11340/* 11341 * Since we only implement one target right now, a bus reset simply resets 11342 * our single target. 11343 */ 11344static int 11345ctl_bus_reset(struct ctl_softc *softc, union ctl_io *io) 11346{ 11347 return(ctl_target_reset(softc, io, CTL_UA_BUS_RESET)); 11348} 11349 11350static int 11351ctl_target_reset(struct ctl_softc *softc, union ctl_io *io, 11352 ctl_ua_type ua_type) 11353{ 11354 struct ctl_port *port; 11355 struct ctl_lun *lun; 11356 int retval; 11357 11358 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11359 union ctl_ha_msg msg_info; 11360 11361 msg_info.hdr.nexus = io->io_hdr.nexus; 11362 if (ua_type==CTL_UA_TARG_RESET) 11363 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11364 else 11365 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11366 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11367 msg_info.hdr.original_sc = NULL; 11368 msg_info.hdr.serializing_sc = NULL; 11369 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11370 sizeof(msg_info.task), M_WAITOK); 11371 } 11372 retval = 0; 11373 11374 mtx_lock(&softc->ctl_lock); 11375 port = softc->ctl_ports[io->io_hdr.nexus.targ_port]; 11376 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11377 if (port != NULL && 11378 ctl_lun_map_to_port(port, lun->lun) >= CTL_MAX_LUNS) 11379 continue; 11380 retval += ctl_do_lun_reset(lun, io, ua_type); 11381 } 11382 mtx_unlock(&softc->ctl_lock); 11383 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11384 return (retval); 11385} 11386 11387/* 11388 * The LUN should always be set. The I/O is optional, and is used to 11389 * distinguish between I/Os sent by this initiator, and by other 11390 * initiators. We set unit attention for initiators other than this one. 11391 * SAM-3 is vague on this point. It does say that a unit attention should 11392 * be established for other initiators when a LUN is reset (see section 11393 * 5.7.3), but it doesn't specifically say that the unit attention should 11394 * be established for this particular initiator when a LUN is reset. Here 11395 * is the relevant text, from SAM-3 rev 8: 11396 * 11397 * 5.7.2 When a SCSI initiator port aborts its own tasks 11398 * 11399 * When a SCSI initiator port causes its own task(s) to be aborted, no 11400 * notification that the task(s) have been aborted shall be returned to 11401 * the SCSI initiator port other than the completion response for the 11402 * command or task management function action that caused the task(s) to 11403 * be aborted and notification(s) associated with related effects of the 11404 * action (e.g., a reset unit attention condition). 11405 * 11406 * XXX KDM for now, we're setting unit attention for all initiators. 11407 */ 11408static int 11409ctl_do_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11410{ 11411 union ctl_io *xio; 11412#if 0 11413 uint32_t initidx; 11414#endif 11415#ifdef CTL_WITH_CA 11416 int i; 11417#endif 11418 11419 mtx_lock(&lun->lun_lock); 11420 /* 11421 * Run through the OOA queue and abort each I/O. 11422 */ 11423 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11424 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11425 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11426 } 11427 11428 /* 11429 * This version sets unit attention for every 11430 */ 11431#if 0 11432 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11433 ctl_est_ua_all(lun, initidx, ua_type); 11434#else 11435 ctl_est_ua_all(lun, -1, ua_type); 11436#endif 11437 11438 /* 11439 * A reset (any kind, really) clears reservations established with 11440 * RESERVE/RELEASE. It does not clear reservations established 11441 * with PERSISTENT RESERVE OUT, but we don't support that at the 11442 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11443 * reservations made with the RESERVE/RELEASE commands, because 11444 * those commands are obsolete in SPC-3. 11445 */ 11446 lun->flags &= ~CTL_LUN_RESERVED; 11447 11448#ifdef CTL_WITH_CA 11449 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11450 ctl_clear_mask(lun->have_ca, i); 11451#endif 11452 mtx_unlock(&lun->lun_lock); 11453 11454 return (0); 11455} 11456 11457static int 11458ctl_lun_reset(struct ctl_softc *softc, union ctl_io *io) 11459{ 11460 struct ctl_lun *lun; 11461 uint32_t targ_lun; 11462 int retval; 11463 11464 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11465 mtx_lock(&softc->ctl_lock); 11466 if ((targ_lun >= CTL_MAX_LUNS) || 11467 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11468 mtx_unlock(&softc->ctl_lock); 11469 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11470 return (1); 11471 } 11472 retval = ctl_do_lun_reset(lun, io, CTL_UA_LUN_RESET); 11473 mtx_unlock(&softc->ctl_lock); 11474 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11475 11476 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0) { 11477 union ctl_ha_msg msg_info; 11478 11479 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11480 msg_info.hdr.nexus = io->io_hdr.nexus; 11481 msg_info.task.task_action = CTL_TASK_LUN_RESET; 11482 msg_info.hdr.original_sc = NULL; 11483 msg_info.hdr.serializing_sc = NULL; 11484 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11485 sizeof(msg_info.task), M_WAITOK); 11486 } 11487 return (retval); 11488} 11489 11490static void 11491ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11492 int other_sc) 11493{ 11494 union ctl_io *xio; 11495 11496 mtx_assert(&lun->lun_lock, MA_OWNED); 11497 11498 /* 11499 * Run through the OOA queue and attempt to find the given I/O. 11500 * The target port, initiator ID, tag type and tag number have to 11501 * match the values that we got from the initiator. If we have an 11502 * untagged command to abort, simply abort the first untagged command 11503 * we come to. We only allow one untagged command at a time of course. 11504 */ 11505 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11506 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11507 11508 if ((targ_port == UINT32_MAX || 11509 targ_port == xio->io_hdr.nexus.targ_port) && 11510 (init_id == UINT32_MAX || 11511 init_id == xio->io_hdr.nexus.initid)) { 11512 if (targ_port != xio->io_hdr.nexus.targ_port || 11513 init_id != xio->io_hdr.nexus.initid) 11514 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 11515 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11516 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11517 union ctl_ha_msg msg_info; 11518 11519 msg_info.hdr.nexus = xio->io_hdr.nexus; 11520 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 11521 msg_info.task.tag_num = xio->scsiio.tag_num; 11522 msg_info.task.tag_type = xio->scsiio.tag_type; 11523 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11524 msg_info.hdr.original_sc = NULL; 11525 msg_info.hdr.serializing_sc = NULL; 11526 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11527 sizeof(msg_info.task), M_NOWAIT); 11528 } 11529 } 11530 } 11531} 11532 11533static int 11534ctl_abort_task_set(union ctl_io *io) 11535{ 11536 struct ctl_softc *softc = control_softc; 11537 struct ctl_lun *lun; 11538 uint32_t targ_lun; 11539 11540 /* 11541 * Look up the LUN. 11542 */ 11543 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11544 mtx_lock(&softc->ctl_lock); 11545 if ((targ_lun >= CTL_MAX_LUNS) || 11546 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11547 mtx_unlock(&softc->ctl_lock); 11548 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11549 return (1); 11550 } 11551 11552 mtx_lock(&lun->lun_lock); 11553 mtx_unlock(&softc->ctl_lock); 11554 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 11555 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11556 io->io_hdr.nexus.initid, 11557 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11558 } else { /* CTL_TASK_CLEAR_TASK_SET */ 11559 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 11560 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11561 } 11562 mtx_unlock(&lun->lun_lock); 11563 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11564 return (0); 11565} 11566 11567static int 11568ctl_i_t_nexus_reset(union ctl_io *io) 11569{ 11570 struct ctl_softc *softc = control_softc; 11571 struct ctl_lun *lun; 11572 uint32_t initidx; 11573 11574 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11575 union ctl_ha_msg msg_info; 11576 11577 msg_info.hdr.nexus = io->io_hdr.nexus; 11578 msg_info.task.task_action = CTL_TASK_I_T_NEXUS_RESET; 11579 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11580 msg_info.hdr.original_sc = NULL; 11581 msg_info.hdr.serializing_sc = NULL; 11582 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11583 sizeof(msg_info.task), M_WAITOK); 11584 } 11585 11586 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11587 mtx_lock(&softc->ctl_lock); 11588 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11589 mtx_lock(&lun->lun_lock); 11590 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11591 io->io_hdr.nexus.initid, 1); 11592#ifdef CTL_WITH_CA 11593 ctl_clear_mask(lun->have_ca, initidx); 11594#endif 11595 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == initidx)) 11596 lun->flags &= ~CTL_LUN_RESERVED; 11597 ctl_est_ua(lun, initidx, CTL_UA_I_T_NEXUS_LOSS); 11598 mtx_unlock(&lun->lun_lock); 11599 } 11600 mtx_unlock(&softc->ctl_lock); 11601 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11602 return (0); 11603} 11604 11605static int 11606ctl_abort_task(union ctl_io *io) 11607{ 11608 union ctl_io *xio; 11609 struct ctl_lun *lun; 11610 struct ctl_softc *softc; 11611#if 0 11612 struct sbuf sb; 11613 char printbuf[128]; 11614#endif 11615 int found; 11616 uint32_t targ_lun; 11617 11618 softc = control_softc; 11619 found = 0; 11620 11621 /* 11622 * Look up the LUN. 11623 */ 11624 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11625 mtx_lock(&softc->ctl_lock); 11626 if ((targ_lun >= CTL_MAX_LUNS) || 11627 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11628 mtx_unlock(&softc->ctl_lock); 11629 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11630 return (1); 11631 } 11632 11633#if 0 11634 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 11635 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 11636#endif 11637 11638 mtx_lock(&lun->lun_lock); 11639 mtx_unlock(&softc->ctl_lock); 11640 /* 11641 * Run through the OOA queue and attempt to find the given I/O. 11642 * The target port, initiator ID, tag type and tag number have to 11643 * match the values that we got from the initiator. If we have an 11644 * untagged command to abort, simply abort the first untagged command 11645 * we come to. We only allow one untagged command at a time of course. 11646 */ 11647 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11648 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11649#if 0 11650 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 11651 11652 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 11653 lun->lun, xio->scsiio.tag_num, 11654 xio->scsiio.tag_type, 11655 (xio->io_hdr.blocked_links.tqe_prev 11656 == NULL) ? "" : " BLOCKED", 11657 (xio->io_hdr.flags & 11658 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 11659 (xio->io_hdr.flags & 11660 CTL_FLAG_ABORT) ? " ABORT" : "", 11661 (xio->io_hdr.flags & 11662 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 11663 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 11664 sbuf_finish(&sb); 11665 printf("%s\n", sbuf_data(&sb)); 11666#endif 11667 11668 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 11669 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 11670 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 11671 continue; 11672 11673 /* 11674 * If the abort says that the task is untagged, the 11675 * task in the queue must be untagged. Otherwise, 11676 * we just check to see whether the tag numbers 11677 * match. This is because the QLogic firmware 11678 * doesn't pass back the tag type in an abort 11679 * request. 11680 */ 11681#if 0 11682 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 11683 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 11684 || (xio->scsiio.tag_num == io->taskio.tag_num)) 11685#endif 11686 /* 11687 * XXX KDM we've got problems with FC, because it 11688 * doesn't send down a tag type with aborts. So we 11689 * can only really go by the tag number... 11690 * This may cause problems with parallel SCSI. 11691 * Need to figure that out!! 11692 */ 11693 if (xio->scsiio.tag_num == io->taskio.tag_num) { 11694 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11695 found = 1; 11696 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0 && 11697 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11698 union ctl_ha_msg msg_info; 11699 11700 msg_info.hdr.nexus = io->io_hdr.nexus; 11701 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 11702 msg_info.task.tag_num = io->taskio.tag_num; 11703 msg_info.task.tag_type = io->taskio.tag_type; 11704 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11705 msg_info.hdr.original_sc = NULL; 11706 msg_info.hdr.serializing_sc = NULL; 11707#if 0 11708 printf("Sent Abort to other side\n"); 11709#endif 11710 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11711 sizeof(msg_info.task), M_NOWAIT); 11712 } 11713#if 0 11714 printf("ctl_abort_task: found I/O to abort\n"); 11715#endif 11716 } 11717 } 11718 mtx_unlock(&lun->lun_lock); 11719 11720 if (found == 0) { 11721 /* 11722 * This isn't really an error. It's entirely possible for 11723 * the abort and command completion to cross on the wire. 11724 * This is more of an informative/diagnostic error. 11725 */ 11726#if 0 11727 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 11728 "%u:%u:%u tag %d type %d\n", 11729 io->io_hdr.nexus.initid, 11730 io->io_hdr.nexus.targ_port, 11731 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 11732 io->taskio.tag_type); 11733#endif 11734 } 11735 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11736 return (0); 11737} 11738 11739static int 11740ctl_query_task(union ctl_io *io, int task_set) 11741{ 11742 union ctl_io *xio; 11743 struct ctl_lun *lun; 11744 struct ctl_softc *softc; 11745 int found = 0; 11746 uint32_t targ_lun; 11747 11748 softc = control_softc; 11749 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11750 mtx_lock(&softc->ctl_lock); 11751 if ((targ_lun >= CTL_MAX_LUNS) || 11752 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11753 mtx_unlock(&softc->ctl_lock); 11754 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11755 return (1); 11756 } 11757 mtx_lock(&lun->lun_lock); 11758 mtx_unlock(&softc->ctl_lock); 11759 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11760 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11761 11762 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 11763 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 11764 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 11765 continue; 11766 11767 if (task_set || xio->scsiio.tag_num == io->taskio.tag_num) { 11768 found = 1; 11769 break; 11770 } 11771 } 11772 mtx_unlock(&lun->lun_lock); 11773 if (found) 11774 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 11775 else 11776 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11777 return (0); 11778} 11779 11780static int 11781ctl_query_async_event(union ctl_io *io) 11782{ 11783 struct ctl_lun *lun; 11784 struct ctl_softc *softc; 11785 ctl_ua_type ua; 11786 uint32_t targ_lun, initidx; 11787 11788 softc = control_softc; 11789 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11790 mtx_lock(&softc->ctl_lock); 11791 if ((targ_lun >= CTL_MAX_LUNS) || 11792 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11793 mtx_unlock(&softc->ctl_lock); 11794 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11795 return (1); 11796 } 11797 mtx_lock(&lun->lun_lock); 11798 mtx_unlock(&softc->ctl_lock); 11799 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11800 ua = ctl_build_qae(lun, initidx, io->taskio.task_resp); 11801 mtx_unlock(&lun->lun_lock); 11802 if (ua != CTL_UA_NONE) 11803 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 11804 else 11805 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11806 return (0); 11807} 11808 11809static void 11810ctl_run_task(union ctl_io *io) 11811{ 11812 struct ctl_softc *softc = control_softc; 11813 int retval = 1; 11814 11815 CTL_DEBUG_PRINT(("ctl_run_task\n")); 11816 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 11817 ("ctl_run_task: Unextected io_type %d\n", io->io_hdr.io_type)); 11818 io->taskio.task_status = CTL_TASK_FUNCTION_NOT_SUPPORTED; 11819 bzero(io->taskio.task_resp, sizeof(io->taskio.task_resp)); 11820 switch (io->taskio.task_action) { 11821 case CTL_TASK_ABORT_TASK: 11822 retval = ctl_abort_task(io); 11823 break; 11824 case CTL_TASK_ABORT_TASK_SET: 11825 case CTL_TASK_CLEAR_TASK_SET: 11826 retval = ctl_abort_task_set(io); 11827 break; 11828 case CTL_TASK_CLEAR_ACA: 11829 break; 11830 case CTL_TASK_I_T_NEXUS_RESET: 11831 retval = ctl_i_t_nexus_reset(io); 11832 break; 11833 case CTL_TASK_LUN_RESET: 11834 retval = ctl_lun_reset(softc, io); 11835 break; 11836 case CTL_TASK_TARGET_RESET: 11837 retval = ctl_target_reset(softc, io, CTL_UA_TARG_RESET); 11838 break; 11839 case CTL_TASK_BUS_RESET: 11840 retval = ctl_bus_reset(softc, io); 11841 break; 11842 case CTL_TASK_PORT_LOGIN: 11843 break; 11844 case CTL_TASK_PORT_LOGOUT: 11845 break; 11846 case CTL_TASK_QUERY_TASK: 11847 retval = ctl_query_task(io, 0); 11848 break; 11849 case CTL_TASK_QUERY_TASK_SET: 11850 retval = ctl_query_task(io, 1); 11851 break; 11852 case CTL_TASK_QUERY_ASYNC_EVENT: 11853 retval = ctl_query_async_event(io); 11854 break; 11855 default: 11856 printf("%s: got unknown task management event %d\n", 11857 __func__, io->taskio.task_action); 11858 break; 11859 } 11860 if (retval == 0) 11861 io->io_hdr.status = CTL_SUCCESS; 11862 else 11863 io->io_hdr.status = CTL_ERROR; 11864 ctl_done(io); 11865} 11866 11867/* 11868 * For HA operation. Handle commands that come in from the other 11869 * controller. 11870 */ 11871static void 11872ctl_handle_isc(union ctl_io *io) 11873{ 11874 int free_io; 11875 struct ctl_lun *lun; 11876 struct ctl_softc *softc; 11877 uint32_t targ_lun; 11878 11879 softc = control_softc; 11880 11881 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11882 lun = softc->ctl_luns[targ_lun]; 11883 11884 switch (io->io_hdr.msg_type) { 11885 case CTL_MSG_SERIALIZE: 11886 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 11887 break; 11888 case CTL_MSG_R2R: { 11889 const struct ctl_cmd_entry *entry; 11890 11891 /* 11892 * This is only used in SER_ONLY mode. 11893 */ 11894 free_io = 0; 11895 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 11896 mtx_lock(&lun->lun_lock); 11897 if (ctl_scsiio_lun_check(lun, 11898 entry, (struct ctl_scsiio *)io) != 0) { 11899 mtx_unlock(&lun->lun_lock); 11900 ctl_done(io); 11901 break; 11902 } 11903 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11904 mtx_unlock(&lun->lun_lock); 11905 ctl_enqueue_rtr(io); 11906 break; 11907 } 11908 case CTL_MSG_FINISH_IO: 11909 if (softc->ha_mode == CTL_HA_MODE_XFER) { 11910 free_io = 0; 11911 ctl_done(io); 11912 } else { 11913 free_io = 1; 11914 mtx_lock(&lun->lun_lock); 11915 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 11916 ooa_links); 11917 ctl_check_blocked(lun); 11918 mtx_unlock(&lun->lun_lock); 11919 } 11920 break; 11921 case CTL_MSG_PERS_ACTION: 11922 ctl_hndl_per_res_out_on_other_sc( 11923 (union ctl_ha_msg *)&io->presio.pr_msg); 11924 free_io = 1; 11925 break; 11926 case CTL_MSG_BAD_JUJU: 11927 free_io = 0; 11928 ctl_done(io); 11929 break; 11930 case CTL_MSG_DATAMOVE: 11931 /* Only used in XFER mode */ 11932 free_io = 0; 11933 ctl_datamove_remote(io); 11934 break; 11935 case CTL_MSG_DATAMOVE_DONE: 11936 /* Only used in XFER mode */ 11937 free_io = 0; 11938 io->scsiio.be_move_done(io); 11939 break; 11940 case CTL_MSG_FAILOVER: 11941 mtx_lock(&lun->lun_lock); 11942 ctl_failover_lun(lun); 11943 mtx_unlock(&lun->lun_lock); 11944 free_io = 1; 11945 break; 11946 default: 11947 free_io = 1; 11948 printf("%s: Invalid message type %d\n", 11949 __func__, io->io_hdr.msg_type); 11950 break; 11951 } 11952 if (free_io) 11953 ctl_free_io(io); 11954 11955} 11956 11957 11958/* 11959 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 11960 * there is no match. 11961 */ 11962static ctl_lun_error_pattern 11963ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 11964{ 11965 const struct ctl_cmd_entry *entry; 11966 ctl_lun_error_pattern filtered_pattern, pattern; 11967 11968 pattern = desc->error_pattern; 11969 11970 /* 11971 * XXX KDM we need more data passed into this function to match a 11972 * custom pattern, and we actually need to implement custom pattern 11973 * matching. 11974 */ 11975 if (pattern & CTL_LUN_PAT_CMD) 11976 return (CTL_LUN_PAT_CMD); 11977 11978 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 11979 return (CTL_LUN_PAT_ANY); 11980 11981 entry = ctl_get_cmd_entry(ctsio, NULL); 11982 11983 filtered_pattern = entry->pattern & pattern; 11984 11985 /* 11986 * If the user requested specific flags in the pattern (e.g. 11987 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 11988 * flags. 11989 * 11990 * If the user did not specify any flags, it doesn't matter whether 11991 * or not the command supports the flags. 11992 */ 11993 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 11994 (pattern & ~CTL_LUN_PAT_MASK)) 11995 return (CTL_LUN_PAT_NONE); 11996 11997 /* 11998 * If the user asked for a range check, see if the requested LBA 11999 * range overlaps with this command's LBA range. 12000 */ 12001 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12002 uint64_t lba1; 12003 uint64_t len1; 12004 ctl_action action; 12005 int retval; 12006 12007 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12008 if (retval != 0) 12009 return (CTL_LUN_PAT_NONE); 12010 12011 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12012 desc->lba_range.len, FALSE); 12013 /* 12014 * A "pass" means that the LBA ranges don't overlap, so 12015 * this doesn't match the user's range criteria. 12016 */ 12017 if (action == CTL_ACTION_PASS) 12018 return (CTL_LUN_PAT_NONE); 12019 } 12020 12021 return (filtered_pattern); 12022} 12023 12024static void 12025ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12026{ 12027 struct ctl_error_desc *desc, *desc2; 12028 12029 mtx_assert(&lun->lun_lock, MA_OWNED); 12030 12031 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12032 ctl_lun_error_pattern pattern; 12033 /* 12034 * Check to see whether this particular command matches 12035 * the pattern in the descriptor. 12036 */ 12037 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12038 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12039 continue; 12040 12041 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12042 case CTL_LUN_INJ_ABORTED: 12043 ctl_set_aborted(&io->scsiio); 12044 break; 12045 case CTL_LUN_INJ_MEDIUM_ERR: 12046 ctl_set_medium_error(&io->scsiio); 12047 break; 12048 case CTL_LUN_INJ_UA: 12049 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12050 * OCCURRED */ 12051 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12052 break; 12053 case CTL_LUN_INJ_CUSTOM: 12054 /* 12055 * We're assuming the user knows what he is doing. 12056 * Just copy the sense information without doing 12057 * checks. 12058 */ 12059 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12060 MIN(sizeof(desc->custom_sense), 12061 sizeof(io->scsiio.sense_data))); 12062 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12063 io->scsiio.sense_len = SSD_FULL_SIZE; 12064 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12065 break; 12066 case CTL_LUN_INJ_NONE: 12067 default: 12068 /* 12069 * If this is an error injection type we don't know 12070 * about, clear the continuous flag (if it is set) 12071 * so it will get deleted below. 12072 */ 12073 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12074 break; 12075 } 12076 /* 12077 * By default, each error injection action is a one-shot 12078 */ 12079 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12080 continue; 12081 12082 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12083 12084 free(desc, M_CTL); 12085 } 12086} 12087 12088#ifdef CTL_IO_DELAY 12089static void 12090ctl_datamove_timer_wakeup(void *arg) 12091{ 12092 union ctl_io *io; 12093 12094 io = (union ctl_io *)arg; 12095 12096 ctl_datamove(io); 12097} 12098#endif /* CTL_IO_DELAY */ 12099 12100void 12101ctl_datamove(union ctl_io *io) 12102{ 12103 void (*fe_datamove)(union ctl_io *io); 12104 12105 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12106 12107 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12108 12109#ifdef CTL_TIME_IO 12110 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12111 char str[256]; 12112 char path_str[64]; 12113 struct sbuf sb; 12114 12115 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12116 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12117 12118 sbuf_cat(&sb, path_str); 12119 switch (io->io_hdr.io_type) { 12120 case CTL_IO_SCSI: 12121 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12122 sbuf_printf(&sb, "\n"); 12123 sbuf_cat(&sb, path_str); 12124 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12125 io->scsiio.tag_num, io->scsiio.tag_type); 12126 break; 12127 case CTL_IO_TASK: 12128 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12129 "Tag Type: %d\n", io->taskio.task_action, 12130 io->taskio.tag_num, io->taskio.tag_type); 12131 break; 12132 default: 12133 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12134 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12135 break; 12136 } 12137 sbuf_cat(&sb, path_str); 12138 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12139 (intmax_t)time_uptime - io->io_hdr.start_time); 12140 sbuf_finish(&sb); 12141 printf("%s", sbuf_data(&sb)); 12142 } 12143#endif /* CTL_TIME_IO */ 12144 12145#ifdef CTL_IO_DELAY 12146 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12147 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12148 } else { 12149 struct ctl_lun *lun; 12150 12151 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12152 if ((lun != NULL) 12153 && (lun->delay_info.datamove_delay > 0)) { 12154 12155 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 12156 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12157 callout_reset(&io->io_hdr.delay_callout, 12158 lun->delay_info.datamove_delay * hz, 12159 ctl_datamove_timer_wakeup, io); 12160 if (lun->delay_info.datamove_type == 12161 CTL_DELAY_TYPE_ONESHOT) 12162 lun->delay_info.datamove_delay = 0; 12163 return; 12164 } 12165 } 12166#endif 12167 12168 /* 12169 * This command has been aborted. Set the port status, so we fail 12170 * the data move. 12171 */ 12172 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12173 printf("ctl_datamove: tag 0x%04x on (%u:%u:%u) aborted\n", 12174 io->scsiio.tag_num, io->io_hdr.nexus.initid, 12175 io->io_hdr.nexus.targ_port, 12176 io->io_hdr.nexus.targ_lun); 12177 io->io_hdr.port_status = 31337; 12178 /* 12179 * Note that the backend, in this case, will get the 12180 * callback in its context. In other cases it may get 12181 * called in the frontend's interrupt thread context. 12182 */ 12183 io->scsiio.be_move_done(io); 12184 return; 12185 } 12186 12187 /* Don't confuse frontend with zero length data move. */ 12188 if (io->scsiio.kern_data_len == 0) { 12189 io->scsiio.be_move_done(io); 12190 return; 12191 } 12192 12193 /* 12194 * If we're in XFER mode and this I/O is from the other shelf 12195 * controller, we need to send the DMA to the other side to 12196 * actually transfer the data to/from the host. In serialize only 12197 * mode the transfer happens below CTL and ctl_datamove() is only 12198 * called on the machine that originally received the I/O. 12199 */ 12200 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12201 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12202 union ctl_ha_msg msg; 12203 uint32_t sg_entries_sent; 12204 int do_sg_copy; 12205 int i; 12206 12207 memset(&msg, 0, sizeof(msg)); 12208 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12209 msg.hdr.original_sc = io->io_hdr.original_sc; 12210 msg.hdr.serializing_sc = io; 12211 msg.hdr.nexus = io->io_hdr.nexus; 12212 msg.dt.flags = io->io_hdr.flags; 12213 /* 12214 * We convert everything into a S/G list here. We can't 12215 * pass by reference, only by value between controllers. 12216 * So we can't pass a pointer to the S/G list, only as many 12217 * S/G entries as we can fit in here. If it's possible for 12218 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12219 * then we need to break this up into multiple transfers. 12220 */ 12221 if (io->scsiio.kern_sg_entries == 0) { 12222 msg.dt.kern_sg_entries = 1; 12223#if 0 12224 /* 12225 * Convert to a physical address if this is a 12226 * virtual address. 12227 */ 12228 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12229 msg.dt.sg_list[0].addr = 12230 io->scsiio.kern_data_ptr; 12231 } else { 12232 /* 12233 * XXX KDM use busdma here! 12234 */ 12235 msg.dt.sg_list[0].addr = (void *) 12236 vtophys(io->scsiio.kern_data_ptr); 12237 } 12238#else 12239 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 12240 ("HA does not support BUS_ADDR")); 12241 msg.dt.sg_list[0].addr = io->scsiio.kern_data_ptr; 12242#endif 12243 12244 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12245 do_sg_copy = 0; 12246 } else { 12247 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12248 do_sg_copy = 1; 12249 } 12250 12251 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12252 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12253 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12254 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12255 msg.dt.sg_sequence = 0; 12256 12257 /* 12258 * Loop until we've sent all of the S/G entries. On the 12259 * other end, we'll recompose these S/G entries into one 12260 * contiguous list before passing it to the 12261 */ 12262 for (sg_entries_sent = 0; sg_entries_sent < 12263 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12264 msg.dt.cur_sg_entries = MIN((sizeof(msg.dt.sg_list)/ 12265 sizeof(msg.dt.sg_list[0])), 12266 msg.dt.kern_sg_entries - sg_entries_sent); 12267 12268 if (do_sg_copy != 0) { 12269 struct ctl_sg_entry *sgl; 12270 int j; 12271 12272 sgl = (struct ctl_sg_entry *) 12273 io->scsiio.kern_data_ptr; 12274 /* 12275 * If this is in cached memory, flush the cache 12276 * before we send the DMA request to the other 12277 * controller. We want to do this in either 12278 * the * read or the write case. The read 12279 * case is straightforward. In the write 12280 * case, we want to make sure nothing is 12281 * in the local cache that could overwrite 12282 * the DMAed data. 12283 */ 12284 12285 for (i = sg_entries_sent, j = 0; 12286 i < msg.dt.cur_sg_entries; i++, j++) { 12287#if 0 12288 if ((io->io_hdr.flags & 12289 CTL_FLAG_BUS_ADDR) == 0) { 12290 /* 12291 * XXX KDM use busdma. 12292 */ 12293 msg.dt.sg_list[j].addr =(void *) 12294 vtophys(sgl[i].addr); 12295 } else { 12296 msg.dt.sg_list[j].addr = 12297 sgl[i].addr; 12298 } 12299#else 12300 KASSERT((io->io_hdr.flags & 12301 CTL_FLAG_BUS_ADDR) == 0, 12302 ("HA does not support BUS_ADDR")); 12303 msg.dt.sg_list[j].addr = sgl[i].addr; 12304#endif 12305 msg.dt.sg_list[j].len = sgl[i].len; 12306 } 12307 } 12308 12309 sg_entries_sent += msg.dt.cur_sg_entries; 12310 if (sg_entries_sent >= msg.dt.kern_sg_entries) 12311 msg.dt.sg_last = 1; 12312 else 12313 msg.dt.sg_last = 0; 12314 12315 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12316 sizeof(msg.dt) - sizeof(msg.dt.sg_list) + 12317 sizeof(struct ctl_sg_entry)*msg.dt.cur_sg_entries, 12318 M_WAITOK) > CTL_HA_STATUS_SUCCESS) { 12319 io->io_hdr.port_status = 31341; 12320 io->scsiio.be_move_done(io); 12321 return; 12322 } 12323 12324 msg.dt.sent_sg_entries = sg_entries_sent; 12325 } 12326 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12327 } else { 12328 12329 /* 12330 * Lookup the fe_datamove() function for this particular 12331 * front end. 12332 */ 12333 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12334 12335 fe_datamove(io); 12336 } 12337} 12338 12339static void 12340ctl_send_datamove_done(union ctl_io *io, int have_lock) 12341{ 12342 union ctl_ha_msg msg; 12343 12344 memset(&msg, 0, sizeof(msg)); 12345 12346 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12347 msg.hdr.original_sc = io; 12348 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12349 msg.hdr.nexus = io->io_hdr.nexus; 12350 msg.hdr.status = io->io_hdr.status; 12351 msg.scsi.tag_num = io->scsiio.tag_num; 12352 msg.scsi.tag_type = io->scsiio.tag_type; 12353 msg.scsi.scsi_status = io->scsiio.scsi_status; 12354 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12355 io->scsiio.sense_len); 12356 msg.scsi.sense_len = io->scsiio.sense_len; 12357 msg.scsi.sense_residual = io->scsiio.sense_residual; 12358 msg.scsi.fetd_status = io->io_hdr.port_status; 12359 msg.scsi.residual = io->scsiio.residual; 12360 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12361 12362 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12363 ctl_failover_io(io, /*have_lock*/ have_lock); 12364 return; 12365 } 12366 12367 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12368 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 12369 msg.scsi.sense_len, M_WAITOK); 12370} 12371 12372/* 12373 * The DMA to the remote side is done, now we need to tell the other side 12374 * we're done so it can continue with its data movement. 12375 */ 12376static void 12377ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12378{ 12379 union ctl_io *io; 12380 int i; 12381 12382 io = rq->context; 12383 12384 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12385 printf("%s: ISC DMA write failed with error %d", __func__, 12386 rq->ret); 12387 ctl_set_internal_failure(&io->scsiio, 12388 /*sks_valid*/ 1, 12389 /*retry_count*/ rq->ret); 12390 } 12391 12392 ctl_dt_req_free(rq); 12393 12394 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12395 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12396 free(io->io_hdr.remote_sglist, M_CTL); 12397 io->io_hdr.remote_sglist = NULL; 12398 io->io_hdr.local_sglist = NULL; 12399 12400 /* 12401 * The data is in local and remote memory, so now we need to send 12402 * status (good or back) back to the other side. 12403 */ 12404 ctl_send_datamove_done(io, /*have_lock*/ 0); 12405} 12406 12407/* 12408 * We've moved the data from the host/controller into local memory. Now we 12409 * need to push it over to the remote controller's memory. 12410 */ 12411static int 12412ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12413{ 12414 int retval; 12415 12416 retval = 0; 12417 12418 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12419 ctl_datamove_remote_write_cb); 12420 12421 return (retval); 12422} 12423 12424static void 12425ctl_datamove_remote_write(union ctl_io *io) 12426{ 12427 int retval; 12428 void (*fe_datamove)(union ctl_io *io); 12429 12430 /* 12431 * - Get the data from the host/HBA into local memory. 12432 * - DMA memory from the local controller to the remote controller. 12433 * - Send status back to the remote controller. 12434 */ 12435 12436 retval = ctl_datamove_remote_sgl_setup(io); 12437 if (retval != 0) 12438 return; 12439 12440 /* Switch the pointer over so the FETD knows what to do */ 12441 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12442 12443 /* 12444 * Use a custom move done callback, since we need to send completion 12445 * back to the other controller, not to the backend on this side. 12446 */ 12447 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12448 12449 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12450 12451 fe_datamove(io); 12452 12453 return; 12454 12455} 12456 12457static int 12458ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12459{ 12460#if 0 12461 char str[256]; 12462 char path_str[64]; 12463 struct sbuf sb; 12464#endif 12465 int i; 12466 12467 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12468 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12469 free(io->io_hdr.remote_sglist, M_CTL); 12470 io->io_hdr.remote_sglist = NULL; 12471 io->io_hdr.local_sglist = NULL; 12472 12473#if 0 12474 scsi_path_string(io, path_str, sizeof(path_str)); 12475 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12476 sbuf_cat(&sb, path_str); 12477 scsi_command_string(&io->scsiio, NULL, &sb); 12478 sbuf_printf(&sb, "\n"); 12479 sbuf_cat(&sb, path_str); 12480 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12481 io->scsiio.tag_num, io->scsiio.tag_type); 12482 sbuf_cat(&sb, path_str); 12483 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12484 io->io_hdr.flags, io->io_hdr.status); 12485 sbuf_finish(&sb); 12486 printk("%s", sbuf_data(&sb)); 12487#endif 12488 12489 12490 /* 12491 * The read is done, now we need to send status (good or bad) back 12492 * to the other side. 12493 */ 12494 ctl_send_datamove_done(io, /*have_lock*/ 0); 12495 12496 return (0); 12497} 12498 12499static void 12500ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12501{ 12502 union ctl_io *io; 12503 void (*fe_datamove)(union ctl_io *io); 12504 12505 io = rq->context; 12506 12507 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12508 printf("%s: ISC DMA read failed with error %d\n", __func__, 12509 rq->ret); 12510 ctl_set_internal_failure(&io->scsiio, 12511 /*sks_valid*/ 1, 12512 /*retry_count*/ rq->ret); 12513 } 12514 12515 ctl_dt_req_free(rq); 12516 12517 /* Switch the pointer over so the FETD knows what to do */ 12518 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12519 12520 /* 12521 * Use a custom move done callback, since we need to send completion 12522 * back to the other controller, not to the backend on this side. 12523 */ 12524 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12525 12526 /* XXX KDM add checks like the ones in ctl_datamove? */ 12527 12528 fe_datamove = ctl_io_port(&io->io_hdr)->fe_datamove; 12529 12530 fe_datamove(io); 12531} 12532 12533static int 12534ctl_datamove_remote_sgl_setup(union ctl_io *io) 12535{ 12536 struct ctl_sg_entry *local_sglist, *remote_sglist; 12537 struct ctl_softc *softc; 12538 uint32_t len_to_go; 12539 int retval; 12540 int i; 12541 12542 retval = 0; 12543 softc = control_softc; 12544 local_sglist = io->io_hdr.local_sglist; 12545 remote_sglist = io->io_hdr.remote_sglist; 12546 len_to_go = io->scsiio.kern_data_len; 12547 12548 /* 12549 * The difficult thing here is that the size of the various 12550 * S/G segments may be different than the size from the 12551 * remote controller. That'll make it harder when DMAing 12552 * the data back to the other side. 12553 */ 12554 for (i = 0; len_to_go > 0; i++) { 12555 local_sglist[i].len = MIN(len_to_go, CTL_HA_DATAMOVE_SEGMENT); 12556 local_sglist[i].addr = 12557 malloc(local_sglist[i].len, M_CTL, M_WAITOK); 12558 12559 len_to_go -= local_sglist[i].len; 12560 } 12561 /* 12562 * Reset the number of S/G entries accordingly. The original 12563 * number of S/G entries is available in rem_sg_entries. 12564 */ 12565 io->scsiio.kern_sg_entries = i; 12566 12567#if 0 12568 printf("%s: kern_sg_entries = %d\n", __func__, 12569 io->scsiio.kern_sg_entries); 12570 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12571 printf("%s: sg[%d] = %p, %d\n", __func__, i, 12572 local_sglist[i].addr, local_sglist[i].len); 12573#endif 12574 12575 return (retval); 12576} 12577 12578static int 12579ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 12580 ctl_ha_dt_cb callback) 12581{ 12582 struct ctl_ha_dt_req *rq; 12583 struct ctl_sg_entry *remote_sglist, *local_sglist; 12584 uint32_t local_used, remote_used, total_used; 12585 int i, j, isc_ret; 12586 12587 rq = ctl_dt_req_alloc(); 12588 12589 /* 12590 * If we failed to allocate the request, and if the DMA didn't fail 12591 * anyway, set busy status. This is just a resource allocation 12592 * failure. 12593 */ 12594 if ((rq == NULL) 12595 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)) 12596 ctl_set_busy(&io->scsiio); 12597 12598 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 12599 12600 if (rq != NULL) 12601 ctl_dt_req_free(rq); 12602 12603 /* 12604 * The data move failed. We need to return status back 12605 * to the other controller. No point in trying to DMA 12606 * data to the remote controller. 12607 */ 12608 12609 ctl_send_datamove_done(io, /*have_lock*/ 0); 12610 12611 return (1); 12612 } 12613 12614 local_sglist = io->io_hdr.local_sglist; 12615 remote_sglist = io->io_hdr.remote_sglist; 12616 local_used = 0; 12617 remote_used = 0; 12618 total_used = 0; 12619 12620 /* 12621 * Pull/push the data over the wire from/to the other controller. 12622 * This takes into account the possibility that the local and 12623 * remote sglists may not be identical in terms of the size of 12624 * the elements and the number of elements. 12625 * 12626 * One fundamental assumption here is that the length allocated for 12627 * both the local and remote sglists is identical. Otherwise, we've 12628 * essentially got a coding error of some sort. 12629 */ 12630 isc_ret = CTL_HA_STATUS_SUCCESS; 12631 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 12632 uint32_t cur_len; 12633 uint8_t *tmp_ptr; 12634 12635 rq->command = command; 12636 rq->context = io; 12637 12638 /* 12639 * Both pointers should be aligned. But it is possible 12640 * that the allocation length is not. They should both 12641 * also have enough slack left over at the end, though, 12642 * to round up to the next 8 byte boundary. 12643 */ 12644 cur_len = MIN(local_sglist[i].len - local_used, 12645 remote_sglist[j].len - remote_used); 12646 rq->size = cur_len; 12647 12648 tmp_ptr = (uint8_t *)local_sglist[i].addr; 12649 tmp_ptr += local_used; 12650 12651#if 0 12652 /* Use physical addresses when talking to ISC hardware */ 12653 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 12654 /* XXX KDM use busdma */ 12655 rq->local = vtophys(tmp_ptr); 12656 } else 12657 rq->local = tmp_ptr; 12658#else 12659 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 12660 ("HA does not support BUS_ADDR")); 12661 rq->local = tmp_ptr; 12662#endif 12663 12664 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 12665 tmp_ptr += remote_used; 12666 rq->remote = tmp_ptr; 12667 12668 rq->callback = NULL; 12669 12670 local_used += cur_len; 12671 if (local_used >= local_sglist[i].len) { 12672 i++; 12673 local_used = 0; 12674 } 12675 12676 remote_used += cur_len; 12677 if (remote_used >= remote_sglist[j].len) { 12678 j++; 12679 remote_used = 0; 12680 } 12681 total_used += cur_len; 12682 12683 if (total_used >= io->scsiio.kern_data_len) 12684 rq->callback = callback; 12685 12686#if 0 12687 printf("%s: %s: local %#x remote %#x size %d\n", __func__, 12688 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 12689 rq->local, rq->remote, rq->size); 12690#endif 12691 12692 isc_ret = ctl_dt_single(rq); 12693 if (isc_ret > CTL_HA_STATUS_SUCCESS) 12694 break; 12695 } 12696 if (isc_ret != CTL_HA_STATUS_WAIT) { 12697 rq->ret = isc_ret; 12698 callback(rq); 12699 } 12700 12701 return (0); 12702} 12703 12704static void 12705ctl_datamove_remote_read(union ctl_io *io) 12706{ 12707 int retval; 12708 int i; 12709 12710 /* 12711 * This will send an error to the other controller in the case of a 12712 * failure. 12713 */ 12714 retval = ctl_datamove_remote_sgl_setup(io); 12715 if (retval != 0) 12716 return; 12717 12718 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 12719 ctl_datamove_remote_read_cb); 12720 if (retval != 0) { 12721 /* 12722 * Make sure we free memory if there was an error.. The 12723 * ctl_datamove_remote_xfer() function will send the 12724 * datamove done message, or call the callback with an 12725 * error if there is a problem. 12726 */ 12727 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12728 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12729 free(io->io_hdr.remote_sglist, M_CTL); 12730 io->io_hdr.remote_sglist = NULL; 12731 io->io_hdr.local_sglist = NULL; 12732 } 12733 12734 return; 12735} 12736 12737/* 12738 * Process a datamove request from the other controller. This is used for 12739 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 12740 * first. Once that is complete, the data gets DMAed into the remote 12741 * controller's memory. For reads, we DMA from the remote controller's 12742 * memory into our memory first, and then move it out to the FETD. 12743 */ 12744static void 12745ctl_datamove_remote(union ctl_io *io) 12746{ 12747 12748 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12749 12750 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12751 ctl_failover_io(io, /*have_lock*/ 0); 12752 return; 12753 } 12754 12755 /* 12756 * Note that we look for an aborted I/O here, but don't do some of 12757 * the other checks that ctl_datamove() normally does. 12758 * We don't need to run the datamove delay code, since that should 12759 * have been done if need be on the other controller. 12760 */ 12761 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12762 printf("%s: tag 0x%04x on (%u:%u:%u) aborted\n", __func__, 12763 io->scsiio.tag_num, io->io_hdr.nexus.initid, 12764 io->io_hdr.nexus.targ_port, 12765 io->io_hdr.nexus.targ_lun); 12766 io->io_hdr.port_status = 31338; 12767 ctl_send_datamove_done(io, /*have_lock*/ 0); 12768 return; 12769 } 12770 12771 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) 12772 ctl_datamove_remote_write(io); 12773 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 12774 ctl_datamove_remote_read(io); 12775 else { 12776 io->io_hdr.port_status = 31339; 12777 ctl_send_datamove_done(io, /*have_lock*/ 0); 12778 } 12779} 12780 12781static int 12782ctl_process_done(union ctl_io *io) 12783{ 12784 struct ctl_lun *lun; 12785 struct ctl_softc *softc = control_softc; 12786 void (*fe_done)(union ctl_io *io); 12787 union ctl_ha_msg msg; 12788 uint32_t targ_port = io->io_hdr.nexus.targ_port; 12789 12790 CTL_DEBUG_PRINT(("ctl_process_done\n")); 12791 12792 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0) 12793 fe_done = softc->ctl_ports[targ_port]->fe_done; 12794 else 12795 fe_done = NULL; 12796 12797#ifdef CTL_TIME_IO 12798 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12799 char str[256]; 12800 char path_str[64]; 12801 struct sbuf sb; 12802 12803 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12804 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12805 12806 sbuf_cat(&sb, path_str); 12807 switch (io->io_hdr.io_type) { 12808 case CTL_IO_SCSI: 12809 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12810 sbuf_printf(&sb, "\n"); 12811 sbuf_cat(&sb, path_str); 12812 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12813 io->scsiio.tag_num, io->scsiio.tag_type); 12814 break; 12815 case CTL_IO_TASK: 12816 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12817 "Tag Type: %d\n", io->taskio.task_action, 12818 io->taskio.tag_num, io->taskio.tag_type); 12819 break; 12820 default: 12821 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12822 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12823 break; 12824 } 12825 sbuf_cat(&sb, path_str); 12826 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 12827 (intmax_t)time_uptime - io->io_hdr.start_time); 12828 sbuf_finish(&sb); 12829 printf("%s", sbuf_data(&sb)); 12830 } 12831#endif /* CTL_TIME_IO */ 12832 12833 switch (io->io_hdr.io_type) { 12834 case CTL_IO_SCSI: 12835 break; 12836 case CTL_IO_TASK: 12837 if (ctl_debug & CTL_DEBUG_INFO) 12838 ctl_io_error_print(io, NULL); 12839 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 12840 ctl_free_io(io); 12841 else 12842 fe_done(io); 12843 return (CTL_RETVAL_COMPLETE); 12844 default: 12845 panic("ctl_process_done: invalid io type %d\n", 12846 io->io_hdr.io_type); 12847 break; /* NOTREACHED */ 12848 } 12849 12850 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12851 if (lun == NULL) { 12852 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 12853 io->io_hdr.nexus.targ_mapped_lun)); 12854 goto bailout; 12855 } 12856 12857 mtx_lock(&lun->lun_lock); 12858 12859 /* 12860 * Check to see if we have any errors to inject here. We only 12861 * inject errors for commands that don't already have errors set. 12862 */ 12863 if ((STAILQ_FIRST(&lun->error_list) != NULL) && 12864 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) && 12865 ((io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0)) 12866 ctl_inject_error(lun, io); 12867 12868 /* 12869 * XXX KDM how do we treat commands that aren't completed 12870 * successfully? 12871 * 12872 * XXX KDM should we also track I/O latency? 12873 */ 12874 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 12875 io->io_hdr.io_type == CTL_IO_SCSI) { 12876#ifdef CTL_TIME_IO 12877 struct bintime cur_bt; 12878#endif 12879 int type; 12880 12881 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 12882 CTL_FLAG_DATA_IN) 12883 type = CTL_STATS_READ; 12884 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 12885 CTL_FLAG_DATA_OUT) 12886 type = CTL_STATS_WRITE; 12887 else 12888 type = CTL_STATS_NO_IO; 12889 12890 lun->stats.ports[targ_port].bytes[type] += 12891 io->scsiio.kern_total_len; 12892 lun->stats.ports[targ_port].operations[type]++; 12893#ifdef CTL_TIME_IO 12894 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 12895 &io->io_hdr.dma_bt); 12896 lun->stats.ports[targ_port].num_dmas[type] += 12897 io->io_hdr.num_dmas; 12898 getbintime(&cur_bt); 12899 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 12900 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 12901#endif 12902 } 12903 12904 /* 12905 * Remove this from the OOA queue. 12906 */ 12907 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 12908#ifdef CTL_TIME_IO 12909 if (TAILQ_EMPTY(&lun->ooa_queue)) 12910 lun->last_busy = getsbinuptime(); 12911#endif 12912 12913 /* 12914 * Run through the blocked queue on this LUN and see if anything 12915 * has become unblocked, now that this transaction is done. 12916 */ 12917 ctl_check_blocked(lun); 12918 12919 /* 12920 * If the LUN has been invalidated, free it if there is nothing 12921 * left on its OOA queue. 12922 */ 12923 if ((lun->flags & CTL_LUN_INVALID) 12924 && TAILQ_EMPTY(&lun->ooa_queue)) { 12925 mtx_unlock(&lun->lun_lock); 12926 mtx_lock(&softc->ctl_lock); 12927 ctl_free_lun(lun); 12928 mtx_unlock(&softc->ctl_lock); 12929 } else 12930 mtx_unlock(&lun->lun_lock); 12931 12932bailout: 12933 12934 /* 12935 * If this command has been aborted, make sure we set the status 12936 * properly. The FETD is responsible for freeing the I/O and doing 12937 * whatever it needs to do to clean up its state. 12938 */ 12939 if (io->io_hdr.flags & CTL_FLAG_ABORT) 12940 ctl_set_task_aborted(&io->scsiio); 12941 12942 /* 12943 * If enabled, print command error status. 12944 */ 12945 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS && 12946 (ctl_debug & CTL_DEBUG_INFO) != 0) 12947 ctl_io_error_print(io, NULL); 12948 12949 /* 12950 * Tell the FETD or the other shelf controller we're done with this 12951 * command. Note that only SCSI commands get to this point. Task 12952 * management commands are completed above. 12953 */ 12954 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 12955 (io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC)) { 12956 memset(&msg, 0, sizeof(msg)); 12957 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 12958 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12959 msg.hdr.nexus = io->io_hdr.nexus; 12960 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12961 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data), 12962 M_WAITOK); 12963 } 12964 if ((softc->ha_mode == CTL_HA_MODE_XFER) 12965 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12966 memset(&msg, 0, sizeof(msg)); 12967 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 12968 msg.hdr.original_sc = io->io_hdr.original_sc; 12969 msg.hdr.nexus = io->io_hdr.nexus; 12970 msg.hdr.status = io->io_hdr.status; 12971 msg.scsi.scsi_status = io->scsiio.scsi_status; 12972 msg.scsi.tag_num = io->scsiio.tag_num; 12973 msg.scsi.tag_type = io->scsiio.tag_type; 12974 msg.scsi.sense_len = io->scsiio.sense_len; 12975 msg.scsi.sense_residual = io->scsiio.sense_residual; 12976 msg.scsi.residual = io->scsiio.residual; 12977 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12978 io->scsiio.sense_len); 12979 /* 12980 * We copy this whether or not this is an I/O-related 12981 * command. Otherwise, we'd have to go and check to see 12982 * whether it's a read/write command, and it really isn't 12983 * worth it. 12984 */ 12985 memcpy(&msg.scsi.lbalen, 12986 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 12987 sizeof(msg.scsi.lbalen)); 12988 12989 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12990 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 12991 msg.scsi.sense_len, M_WAITOK); 12992 ctl_free_io(io); 12993 } else 12994 fe_done(io); 12995 12996 return (CTL_RETVAL_COMPLETE); 12997} 12998 12999#ifdef CTL_WITH_CA 13000/* 13001 * Front end should call this if it doesn't do autosense. When the request 13002 * sense comes back in from the initiator, we'll dequeue this and send it. 13003 */ 13004int 13005ctl_queue_sense(union ctl_io *io) 13006{ 13007 struct ctl_lun *lun; 13008 struct ctl_port *port; 13009 struct ctl_softc *softc; 13010 uint32_t initidx, targ_lun; 13011 13012 softc = control_softc; 13013 13014 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13015 13016 /* 13017 * LUN lookup will likely move to the ctl_work_thread() once we 13018 * have our new queueing infrastructure (that doesn't put things on 13019 * a per-LUN queue initially). That is so that we can handle 13020 * things like an INQUIRY to a LUN that we don't have enabled. We 13021 * can't deal with that right now. 13022 */ 13023 mtx_lock(&softc->ctl_lock); 13024 13025 /* 13026 * If we don't have a LUN for this, just toss the sense 13027 * information. 13028 */ 13029 port = ctl_io_port(&ctsio->io_hdr); 13030 targ_lun = ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13031 if ((targ_lun < CTL_MAX_LUNS) 13032 && (softc->ctl_luns[targ_lun] != NULL)) 13033 lun = softc->ctl_luns[targ_lun]; 13034 else 13035 goto bailout; 13036 13037 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13038 13039 mtx_lock(&lun->lun_lock); 13040 /* 13041 * Already have CA set for this LUN...toss the sense information. 13042 */ 13043 if (ctl_is_set(lun->have_ca, initidx)) { 13044 mtx_unlock(&lun->lun_lock); 13045 goto bailout; 13046 } 13047 13048 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13049 MIN(sizeof(lun->pending_sense[initidx]), 13050 sizeof(io->scsiio.sense_data))); 13051 ctl_set_mask(lun->have_ca, initidx); 13052 mtx_unlock(&lun->lun_lock); 13053 13054bailout: 13055 mtx_unlock(&softc->ctl_lock); 13056 13057 ctl_free_io(io); 13058 13059 return (CTL_RETVAL_COMPLETE); 13060} 13061#endif 13062 13063/* 13064 * Primary command inlet from frontend ports. All SCSI and task I/O 13065 * requests must go through this function. 13066 */ 13067int 13068ctl_queue(union ctl_io *io) 13069{ 13070 struct ctl_port *port; 13071 13072 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13073 13074#ifdef CTL_TIME_IO 13075 io->io_hdr.start_time = time_uptime; 13076 getbintime(&io->io_hdr.start_bt); 13077#endif /* CTL_TIME_IO */ 13078 13079 /* Map FE-specific LUN ID into global one. */ 13080 port = ctl_io_port(&io->io_hdr); 13081 io->io_hdr.nexus.targ_mapped_lun = 13082 ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13083 13084 switch (io->io_hdr.io_type) { 13085 case CTL_IO_SCSI: 13086 case CTL_IO_TASK: 13087 if (ctl_debug & CTL_DEBUG_CDB) 13088 ctl_io_print(io); 13089 ctl_enqueue_incoming(io); 13090 break; 13091 default: 13092 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13093 return (EINVAL); 13094 } 13095 13096 return (CTL_RETVAL_COMPLETE); 13097} 13098 13099#ifdef CTL_IO_DELAY 13100static void 13101ctl_done_timer_wakeup(void *arg) 13102{ 13103 union ctl_io *io; 13104 13105 io = (union ctl_io *)arg; 13106 ctl_done(io); 13107} 13108#endif /* CTL_IO_DELAY */ 13109 13110void 13111ctl_done(union ctl_io *io) 13112{ 13113 13114 /* 13115 * Enable this to catch duplicate completion issues. 13116 */ 13117#if 0 13118 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13119 printf("%s: type %d msg %d cdb %x iptl: " 13120 "%u:%u:%u tag 0x%04x " 13121 "flag %#x status %x\n", 13122 __func__, 13123 io->io_hdr.io_type, 13124 io->io_hdr.msg_type, 13125 io->scsiio.cdb[0], 13126 io->io_hdr.nexus.initid, 13127 io->io_hdr.nexus.targ_port, 13128 io->io_hdr.nexus.targ_lun, 13129 (io->io_hdr.io_type == 13130 CTL_IO_TASK) ? 13131 io->taskio.tag_num : 13132 io->scsiio.tag_num, 13133 io->io_hdr.flags, 13134 io->io_hdr.status); 13135 } else 13136 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13137#endif 13138 13139 /* 13140 * This is an internal copy of an I/O, and should not go through 13141 * the normal done processing logic. 13142 */ 13143 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13144 return; 13145 13146#ifdef CTL_IO_DELAY 13147 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13148 struct ctl_lun *lun; 13149 13150 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13151 13152 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13153 } else { 13154 struct ctl_lun *lun; 13155 13156 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13157 13158 if ((lun != NULL) 13159 && (lun->delay_info.done_delay > 0)) { 13160 13161 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 13162 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13163 callout_reset(&io->io_hdr.delay_callout, 13164 lun->delay_info.done_delay * hz, 13165 ctl_done_timer_wakeup, io); 13166 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13167 lun->delay_info.done_delay = 0; 13168 return; 13169 } 13170 } 13171#endif /* CTL_IO_DELAY */ 13172 13173 ctl_enqueue_done(io); 13174} 13175 13176static void 13177ctl_work_thread(void *arg) 13178{ 13179 struct ctl_thread *thr = (struct ctl_thread *)arg; 13180 struct ctl_softc *softc = thr->ctl_softc; 13181 union ctl_io *io; 13182 int retval; 13183 13184 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13185 13186 for (;;) { 13187 retval = 0; 13188 13189 /* 13190 * We handle the queues in this order: 13191 * - ISC 13192 * - done queue (to free up resources, unblock other commands) 13193 * - RtR queue 13194 * - incoming queue 13195 * 13196 * If those queues are empty, we break out of the loop and 13197 * go to sleep. 13198 */ 13199 mtx_lock(&thr->queue_lock); 13200 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13201 if (io != NULL) { 13202 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13203 mtx_unlock(&thr->queue_lock); 13204 ctl_handle_isc(io); 13205 continue; 13206 } 13207 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13208 if (io != NULL) { 13209 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13210 /* clear any blocked commands, call fe_done */ 13211 mtx_unlock(&thr->queue_lock); 13212 retval = ctl_process_done(io); 13213 continue; 13214 } 13215 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13216 if (io != NULL) { 13217 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13218 mtx_unlock(&thr->queue_lock); 13219 if (io->io_hdr.io_type == CTL_IO_TASK) 13220 ctl_run_task(io); 13221 else 13222 ctl_scsiio_precheck(softc, &io->scsiio); 13223 continue; 13224 } 13225 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13226 if (io != NULL) { 13227 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13228 mtx_unlock(&thr->queue_lock); 13229 retval = ctl_scsiio(&io->scsiio); 13230 if (retval != CTL_RETVAL_COMPLETE) 13231 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13232 continue; 13233 } 13234 13235 /* Sleep until we have something to do. */ 13236 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13237 } 13238} 13239 13240static void 13241ctl_lun_thread(void *arg) 13242{ 13243 struct ctl_softc *softc = (struct ctl_softc *)arg; 13244 struct ctl_be_lun *be_lun; 13245 int retval; 13246 13247 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 13248 13249 for (;;) { 13250 retval = 0; 13251 mtx_lock(&softc->ctl_lock); 13252 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 13253 if (be_lun != NULL) { 13254 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 13255 mtx_unlock(&softc->ctl_lock); 13256 ctl_create_lun(be_lun); 13257 continue; 13258 } 13259 13260 /* Sleep until we have something to do. */ 13261 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 13262 PDROP | PRIBIO, "-", 0); 13263 } 13264} 13265 13266static void 13267ctl_thresh_thread(void *arg) 13268{ 13269 struct ctl_softc *softc = (struct ctl_softc *)arg; 13270 struct ctl_lun *lun; 13271 struct ctl_be_lun *be_lun; 13272 struct scsi_da_rw_recovery_page *rwpage; 13273 struct ctl_logical_block_provisioning_page *page; 13274 const char *attr; 13275 union ctl_ha_msg msg; 13276 uint64_t thres, val; 13277 int i, e, set; 13278 13279 CTL_DEBUG_PRINT(("ctl_thresh_thread starting\n")); 13280 13281 for (;;) { 13282 mtx_lock(&softc->ctl_lock); 13283 STAILQ_FOREACH(lun, &softc->lun_list, links) { 13284 be_lun = lun->be_lun; 13285 if ((lun->flags & CTL_LUN_DISABLED) || 13286 (lun->flags & CTL_LUN_OFFLINE) || 13287 lun->backend->lun_attr == NULL) 13288 continue; 13289 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 13290 softc->ha_mode == CTL_HA_MODE_XFER) 13291 continue; 13292 rwpage = &lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT]; 13293 if ((rwpage->byte8 & SMS_RWER_LBPERE) == 0) 13294 continue; 13295 e = 0; 13296 page = &lun->mode_pages.lbp_page[CTL_PAGE_CURRENT]; 13297 for (i = 0; i < CTL_NUM_LBP_THRESH; i++) { 13298 if ((page->descr[i].flags & SLBPPD_ENABLED) == 0) 13299 continue; 13300 thres = scsi_4btoul(page->descr[i].count); 13301 thres <<= CTL_LBP_EXPONENT; 13302 switch (page->descr[i].resource) { 13303 case 0x01: 13304 attr = "blocksavail"; 13305 break; 13306 case 0x02: 13307 attr = "blocksused"; 13308 break; 13309 case 0xf1: 13310 attr = "poolblocksavail"; 13311 break; 13312 case 0xf2: 13313 attr = "poolblocksused"; 13314 break; 13315 default: 13316 continue; 13317 } 13318 mtx_unlock(&softc->ctl_lock); // XXX 13319 val = lun->backend->lun_attr( 13320 lun->be_lun->be_lun, attr); 13321 mtx_lock(&softc->ctl_lock); 13322 if (val == UINT64_MAX) 13323 continue; 13324 if ((page->descr[i].flags & SLBPPD_ARMING_MASK) 13325 == SLBPPD_ARMING_INC) 13326 e |= (val >= thres); 13327 else 13328 e |= (val <= thres); 13329 } 13330 mtx_lock(&lun->lun_lock); 13331 if (e) { 13332 if (lun->lasttpt == 0 || 13333 time_uptime - lun->lasttpt >= CTL_LBP_UA_PERIOD) { 13334 lun->lasttpt = time_uptime; 13335 ctl_est_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13336 set = 1; 13337 } else 13338 set = 0; 13339 } else { 13340 lun->lasttpt = 0; 13341 ctl_clr_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13342 set = -1; 13343 } 13344 mtx_unlock(&lun->lun_lock); 13345 if (set != 0 && 13346 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 13347 /* Send msg to other side. */ 13348 bzero(&msg.ua, sizeof(msg.ua)); 13349 msg.hdr.msg_type = CTL_MSG_UA; 13350 msg.hdr.nexus.initid = -1; 13351 msg.hdr.nexus.targ_port = -1; 13352 msg.hdr.nexus.targ_lun = lun->lun; 13353 msg.hdr.nexus.targ_mapped_lun = lun->lun; 13354 msg.ua.ua_all = 1; 13355 msg.ua.ua_set = (set > 0); 13356 msg.ua.ua_type = CTL_UA_THIN_PROV_THRES; 13357 mtx_unlock(&softc->ctl_lock); // XXX 13358 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13359 sizeof(msg.ua), M_WAITOK); 13360 mtx_lock(&softc->ctl_lock); 13361 } 13362 } 13363 mtx_unlock(&softc->ctl_lock); 13364 pause("-", CTL_LBP_PERIOD * hz); 13365 } 13366} 13367 13368static void 13369ctl_enqueue_incoming(union ctl_io *io) 13370{ 13371 struct ctl_softc *softc = control_softc; 13372 struct ctl_thread *thr; 13373 u_int idx; 13374 13375 idx = (io->io_hdr.nexus.targ_port * 127 + 13376 io->io_hdr.nexus.initid) % worker_threads; 13377 thr = &softc->threads[idx]; 13378 mtx_lock(&thr->queue_lock); 13379 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 13380 mtx_unlock(&thr->queue_lock); 13381 wakeup(thr); 13382} 13383 13384static void 13385ctl_enqueue_rtr(union ctl_io *io) 13386{ 13387 struct ctl_softc *softc = control_softc; 13388 struct ctl_thread *thr; 13389 13390 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13391 mtx_lock(&thr->queue_lock); 13392 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 13393 mtx_unlock(&thr->queue_lock); 13394 wakeup(thr); 13395} 13396 13397static void 13398ctl_enqueue_done(union ctl_io *io) 13399{ 13400 struct ctl_softc *softc = control_softc; 13401 struct ctl_thread *thr; 13402 13403 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13404 mtx_lock(&thr->queue_lock); 13405 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 13406 mtx_unlock(&thr->queue_lock); 13407 wakeup(thr); 13408} 13409 13410static void 13411ctl_enqueue_isc(union ctl_io *io) 13412{ 13413 struct ctl_softc *softc = control_softc; 13414 struct ctl_thread *thr; 13415 13416 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13417 mtx_lock(&thr->queue_lock); 13418 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 13419 mtx_unlock(&thr->queue_lock); 13420 wakeup(thr); 13421} 13422 13423/* 13424 * vim: ts=8 13425 */ 13426