ctl.c revision 276237
1/*- 2 * Copyright (c) 2003-2009 Silicon Graphics International Corp. 3 * Copyright (c) 2012 The FreeBSD Foundation 4 * All rights reserved. 5 * 6 * Portions of this software were developed by Edward Tomasz Napierala 7 * under sponsorship from the FreeBSD Foundation. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions, and the following disclaimer, 14 * without modification. 15 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 16 * substantially similar to the "NO WARRANTY" disclaimer below 17 * ("Disclaimer") and any redistribution must be conditioned upon 18 * including a substantially similar Disclaimer requirement for further 19 * binary redistribution. 20 * 21 * NO WARRANTY 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 23 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 24 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 25 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 26 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 30 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 31 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32 * POSSIBILITY OF SUCH DAMAGES. 33 * 34 * $Id: //depot/users/kenm/FreeBSD-test2/sys/cam/ctl/ctl.c#8 $ 35 */ 36/* 37 * CAM Target Layer, a SCSI device emulation subsystem. 38 * 39 * Author: Ken Merry <ken@FreeBSD.org> 40 */ 41 42#define _CTL_C 43 44#include <sys/cdefs.h> 45__FBSDID("$FreeBSD: stable/10/sys/cam/ctl/ctl.c 276237 2014-12-26 09:44:32Z mav $"); 46 47#include <sys/param.h> 48#include <sys/systm.h> 49#include <sys/ctype.h> 50#include <sys/kernel.h> 51#include <sys/types.h> 52#include <sys/kthread.h> 53#include <sys/bio.h> 54#include <sys/fcntl.h> 55#include <sys/lock.h> 56#include <sys/module.h> 57#include <sys/mutex.h> 58#include <sys/condvar.h> 59#include <sys/malloc.h> 60#include <sys/conf.h> 61#include <sys/ioccom.h> 62#include <sys/queue.h> 63#include <sys/sbuf.h> 64#include <sys/smp.h> 65#include <sys/endian.h> 66#include <sys/sysctl.h> 67#include <vm/uma.h> 68 69#include <cam/cam.h> 70#include <cam/scsi/scsi_all.h> 71#include <cam/scsi/scsi_da.h> 72#include <cam/ctl/ctl_io.h> 73#include <cam/ctl/ctl.h> 74#include <cam/ctl/ctl_frontend.h> 75#include <cam/ctl/ctl_frontend_internal.h> 76#include <cam/ctl/ctl_util.h> 77#include <cam/ctl/ctl_backend.h> 78#include <cam/ctl/ctl_ioctl.h> 79#include <cam/ctl/ctl_ha.h> 80#include <cam/ctl/ctl_private.h> 81#include <cam/ctl/ctl_debug.h> 82#include <cam/ctl/ctl_scsi_all.h> 83#include <cam/ctl/ctl_error.h> 84 85struct ctl_softc *control_softc = NULL; 86 87/* 88 * Size and alignment macros needed for Copan-specific HA hardware. These 89 * can go away when the HA code is re-written, and uses busdma for any 90 * hardware. 91 */ 92#define CTL_ALIGN_8B(target, source, type) \ 93 if (((uint32_t)source & 0x7) != 0) \ 94 target = (type)(source + (0x8 - ((uint32_t)source & 0x7)));\ 95 else \ 96 target = (type)source; 97 98#define CTL_SIZE_8B(target, size) \ 99 if ((size & 0x7) != 0) \ 100 target = size + (0x8 - (size & 0x7)); \ 101 else \ 102 target = size; 103 104#define CTL_ALIGN_8B_MARGIN 16 105 106/* 107 * Template mode pages. 108 */ 109 110/* 111 * Note that these are default values only. The actual values will be 112 * filled in when the user does a mode sense. 113 */ 114static struct copan_debugconf_subpage debugconf_page_default = { 115 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 116 DBGCNF_SUBPAGE_CODE, /* subpage */ 117 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 118 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 119 DBGCNF_VERSION, /* page_version */ 120 {CTL_TIME_IO_DEFAULT_SECS>>8, 121 CTL_TIME_IO_DEFAULT_SECS>>0}, /* ctl_time_io_secs */ 122}; 123 124static struct copan_debugconf_subpage debugconf_page_changeable = { 125 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 126 DBGCNF_SUBPAGE_CODE, /* subpage */ 127 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 128 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 129 0, /* page_version */ 130 {0xff,0xff}, /* ctl_time_io_secs */ 131}; 132 133static struct scsi_da_rw_recovery_page rw_er_page_default = { 134 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 135 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 136 /*byte3*/SMS_RWER_AWRE|SMS_RWER_ARRE, 137 /*read_retry_count*/0, 138 /*correction_span*/0, 139 /*head_offset_count*/0, 140 /*data_strobe_offset_cnt*/0, 141 /*byte8*/SMS_RWER_LBPERE, 142 /*write_retry_count*/0, 143 /*reserved2*/0, 144 /*recovery_time_limit*/{0, 0}, 145}; 146 147static struct scsi_da_rw_recovery_page rw_er_page_changeable = { 148 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 149 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 150 /*byte3*/0, 151 /*read_retry_count*/0, 152 /*correction_span*/0, 153 /*head_offset_count*/0, 154 /*data_strobe_offset_cnt*/0, 155 /*byte8*/0, 156 /*write_retry_count*/0, 157 /*reserved2*/0, 158 /*recovery_time_limit*/{0, 0}, 159}; 160 161static struct scsi_format_page format_page_default = { 162 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 163 /*page_length*/sizeof(struct scsi_format_page) - 2, 164 /*tracks_per_zone*/ {0, 0}, 165 /*alt_sectors_per_zone*/ {0, 0}, 166 /*alt_tracks_per_zone*/ {0, 0}, 167 /*alt_tracks_per_lun*/ {0, 0}, 168 /*sectors_per_track*/ {(CTL_DEFAULT_SECTORS_PER_TRACK >> 8) & 0xff, 169 CTL_DEFAULT_SECTORS_PER_TRACK & 0xff}, 170 /*bytes_per_sector*/ {0, 0}, 171 /*interleave*/ {0, 0}, 172 /*track_skew*/ {0, 0}, 173 /*cylinder_skew*/ {0, 0}, 174 /*flags*/ SFP_HSEC, 175 /*reserved*/ {0, 0, 0} 176}; 177 178static struct scsi_format_page format_page_changeable = { 179 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 180 /*page_length*/sizeof(struct scsi_format_page) - 2, 181 /*tracks_per_zone*/ {0, 0}, 182 /*alt_sectors_per_zone*/ {0, 0}, 183 /*alt_tracks_per_zone*/ {0, 0}, 184 /*alt_tracks_per_lun*/ {0, 0}, 185 /*sectors_per_track*/ {0, 0}, 186 /*bytes_per_sector*/ {0, 0}, 187 /*interleave*/ {0, 0}, 188 /*track_skew*/ {0, 0}, 189 /*cylinder_skew*/ {0, 0}, 190 /*flags*/ 0, 191 /*reserved*/ {0, 0, 0} 192}; 193 194static struct scsi_rigid_disk_page rigid_disk_page_default = { 195 /*page_code*/SMS_RIGID_DISK_PAGE, 196 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 197 /*cylinders*/ {0, 0, 0}, 198 /*heads*/ CTL_DEFAULT_HEADS, 199 /*start_write_precomp*/ {0, 0, 0}, 200 /*start_reduced_current*/ {0, 0, 0}, 201 /*step_rate*/ {0, 0}, 202 /*landing_zone_cylinder*/ {0, 0, 0}, 203 /*rpl*/ SRDP_RPL_DISABLED, 204 /*rotational_offset*/ 0, 205 /*reserved1*/ 0, 206 /*rotation_rate*/ {(CTL_DEFAULT_ROTATION_RATE >> 8) & 0xff, 207 CTL_DEFAULT_ROTATION_RATE & 0xff}, 208 /*reserved2*/ {0, 0} 209}; 210 211static struct scsi_rigid_disk_page rigid_disk_page_changeable = { 212 /*page_code*/SMS_RIGID_DISK_PAGE, 213 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 214 /*cylinders*/ {0, 0, 0}, 215 /*heads*/ 0, 216 /*start_write_precomp*/ {0, 0, 0}, 217 /*start_reduced_current*/ {0, 0, 0}, 218 /*step_rate*/ {0, 0}, 219 /*landing_zone_cylinder*/ {0, 0, 0}, 220 /*rpl*/ 0, 221 /*rotational_offset*/ 0, 222 /*reserved1*/ 0, 223 /*rotation_rate*/ {0, 0}, 224 /*reserved2*/ {0, 0} 225}; 226 227static struct scsi_caching_page caching_page_default = { 228 /*page_code*/SMS_CACHING_PAGE, 229 /*page_length*/sizeof(struct scsi_caching_page) - 2, 230 /*flags1*/ SCP_DISC | SCP_WCE, 231 /*ret_priority*/ 0, 232 /*disable_pf_transfer_len*/ {0xff, 0xff}, 233 /*min_prefetch*/ {0, 0}, 234 /*max_prefetch*/ {0xff, 0xff}, 235 /*max_pf_ceiling*/ {0xff, 0xff}, 236 /*flags2*/ 0, 237 /*cache_segments*/ 0, 238 /*cache_seg_size*/ {0, 0}, 239 /*reserved*/ 0, 240 /*non_cache_seg_size*/ {0, 0, 0} 241}; 242 243static struct scsi_caching_page caching_page_changeable = { 244 /*page_code*/SMS_CACHING_PAGE, 245 /*page_length*/sizeof(struct scsi_caching_page) - 2, 246 /*flags1*/ SCP_WCE | SCP_RCD, 247 /*ret_priority*/ 0, 248 /*disable_pf_transfer_len*/ {0, 0}, 249 /*min_prefetch*/ {0, 0}, 250 /*max_prefetch*/ {0, 0}, 251 /*max_pf_ceiling*/ {0, 0}, 252 /*flags2*/ 0, 253 /*cache_segments*/ 0, 254 /*cache_seg_size*/ {0, 0}, 255 /*reserved*/ 0, 256 /*non_cache_seg_size*/ {0, 0, 0} 257}; 258 259static struct scsi_control_page control_page_default = { 260 /*page_code*/SMS_CONTROL_MODE_PAGE, 261 /*page_length*/sizeof(struct scsi_control_page) - 2, 262 /*rlec*/0, 263 /*queue_flags*/SCP_QUEUE_ALG_RESTRICTED, 264 /*eca_and_aen*/0, 265 /*flags4*/SCP_TAS, 266 /*aen_holdoff_period*/{0, 0}, 267 /*busy_timeout_period*/{0, 0}, 268 /*extended_selftest_completion_time*/{0, 0} 269}; 270 271static struct scsi_control_page control_page_changeable = { 272 /*page_code*/SMS_CONTROL_MODE_PAGE, 273 /*page_length*/sizeof(struct scsi_control_page) - 2, 274 /*rlec*/SCP_DSENSE, 275 /*queue_flags*/SCP_QUEUE_ALG_MASK, 276 /*eca_and_aen*/SCP_SWP, 277 /*flags4*/0, 278 /*aen_holdoff_period*/{0, 0}, 279 /*busy_timeout_period*/{0, 0}, 280 /*extended_selftest_completion_time*/{0, 0} 281}; 282 283static struct scsi_info_exceptions_page ie_page_default = { 284 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 285 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 286 /*info_flags*/SIEP_FLAGS_DEXCPT, 287 /*mrie*/0, 288 /*interval_timer*/{0, 0, 0, 0}, 289 /*report_count*/{0, 0, 0, 0} 290}; 291 292static struct scsi_info_exceptions_page ie_page_changeable = { 293 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 294 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 295 /*info_flags*/0, 296 /*mrie*/0, 297 /*interval_timer*/{0, 0, 0, 0}, 298 /*report_count*/{0, 0, 0, 0} 299}; 300 301#define CTL_LBPM_LEN (sizeof(struct ctl_logical_block_provisioning_page) - 4) 302 303static struct ctl_logical_block_provisioning_page lbp_page_default = {{ 304 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 305 /*subpage_code*/0x02, 306 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 307 /*flags*/0, 308 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 309 /*descr*/{}}, 310 {{/*flags*/0, 311 /*resource*/0x01, 312 /*reserved*/{0, 0}, 313 /*count*/{0, 0, 0, 0}}, 314 {/*flags*/0, 315 /*resource*/0x02, 316 /*reserved*/{0, 0}, 317 /*count*/{0, 0, 0, 0}}, 318 {/*flags*/0, 319 /*resource*/0xf1, 320 /*reserved*/{0, 0}, 321 /*count*/{0, 0, 0, 0}}, 322 {/*flags*/0, 323 /*resource*/0xf2, 324 /*reserved*/{0, 0}, 325 /*count*/{0, 0, 0, 0}} 326 } 327}; 328 329static struct ctl_logical_block_provisioning_page lbp_page_changeable = {{ 330 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 331 /*subpage_code*/0x02, 332 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 333 /*flags*/0, 334 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 335 /*descr*/{}}, 336 {{/*flags*/0, 337 /*resource*/0, 338 /*reserved*/{0, 0}, 339 /*count*/{0, 0, 0, 0}}, 340 {/*flags*/0, 341 /*resource*/0, 342 /*reserved*/{0, 0}, 343 /*count*/{0, 0, 0, 0}}, 344 {/*flags*/0, 345 /*resource*/0, 346 /*reserved*/{0, 0}, 347 /*count*/{0, 0, 0, 0}}, 348 {/*flags*/0, 349 /*resource*/0, 350 /*reserved*/{0, 0}, 351 /*count*/{0, 0, 0, 0}} 352 } 353}; 354 355/* 356 * XXX KDM move these into the softc. 357 */ 358static int rcv_sync_msg; 359static uint8_t ctl_pause_rtr; 360 361SYSCTL_NODE(_kern_cam, OID_AUTO, ctl, CTLFLAG_RD, 0, "CAM Target Layer"); 362static int worker_threads = -1; 363TUNABLE_INT("kern.cam.ctl.worker_threads", &worker_threads); 364SYSCTL_INT(_kern_cam_ctl, OID_AUTO, worker_threads, CTLFLAG_RDTUN, 365 &worker_threads, 1, "Number of worker threads"); 366static int ctl_debug = CTL_DEBUG_NONE; 367TUNABLE_INT("kern.cam.ctl.debug", &ctl_debug); 368SYSCTL_INT(_kern_cam_ctl, OID_AUTO, debug, CTLFLAG_RWTUN, 369 &ctl_debug, 0, "Enabled debug flags"); 370 371/* 372 * Supported pages (0x00), Serial number (0x80), Device ID (0x83), 373 * Extended INQUIRY Data (0x86), Mode Page Policy (0x87), 374 * SCSI Ports (0x88), Third-party Copy (0x8F), Block limits (0xB0), 375 * Block Device Characteristics (0xB1) and Logical Block Provisioning (0xB2) 376 */ 377#define SCSI_EVPD_NUM_SUPPORTED_PAGES 10 378 379static void ctl_isc_event_handler(ctl_ha_channel chanel, ctl_ha_event event, 380 int param); 381static void ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest); 382static int ctl_init(void); 383void ctl_shutdown(void); 384static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td); 385static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td); 386static void ctl_ioctl_online(void *arg); 387static void ctl_ioctl_offline(void *arg); 388static int ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id); 389static int ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id); 390static int ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio); 391static int ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio); 392static int ctl_ioctl_submit_wait(union ctl_io *io); 393static void ctl_ioctl_datamove(union ctl_io *io); 394static void ctl_ioctl_done(union ctl_io *io); 395static void ctl_ioctl_hard_startstop_callback(void *arg, 396 struct cfi_metatask *metatask); 397static void ctl_ioctl_bbrread_callback(void *arg,struct cfi_metatask *metatask); 398static int ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 399 struct ctl_ooa *ooa_hdr, 400 struct ctl_ooa_entry *kern_entries); 401static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 402 struct thread *td); 403static uint32_t ctl_map_lun(int port_num, uint32_t lun); 404static uint32_t ctl_map_lun_back(int port_num, uint32_t lun); 405static int ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 406 struct ctl_be_lun *be_lun, struct ctl_id target_id); 407static int ctl_free_lun(struct ctl_lun *lun); 408static void ctl_create_lun(struct ctl_be_lun *be_lun); 409/** 410static void ctl_failover_change_pages(struct ctl_softc *softc, 411 struct ctl_scsiio *ctsio, int master); 412**/ 413 414static int ctl_do_mode_select(union ctl_io *io); 415static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, 416 uint64_t res_key, uint64_t sa_res_key, 417 uint8_t type, uint32_t residx, 418 struct ctl_scsiio *ctsio, 419 struct scsi_per_res_out *cdb, 420 struct scsi_per_res_out_parms* param); 421static void ctl_pro_preempt_other(struct ctl_lun *lun, 422 union ctl_ha_msg *msg); 423static void ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg); 424static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 425static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 426static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 427static int ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len); 428static int ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len); 429static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, 430 int alloc_len); 431static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 432 int alloc_len); 433static int ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len); 434static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 435static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 436static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 437static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len); 438static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2, 439 bool seq); 440static ctl_action ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2); 441static ctl_action ctl_check_for_blockage(struct ctl_lun *lun, 442 union ctl_io *pending_io, union ctl_io *ooa_io); 443static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 444 union ctl_io *starting_io); 445static int ctl_check_blocked(struct ctl_lun *lun); 446static int ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, 447 struct ctl_lun *lun, 448 const struct ctl_cmd_entry *entry, 449 struct ctl_scsiio *ctsio); 450//static int ctl_check_rtr(union ctl_io *pending_io, struct ctl_softc *softc); 451static void ctl_failover(void); 452static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 453 struct ctl_scsiio *ctsio); 454static int ctl_scsiio(struct ctl_scsiio *ctsio); 455 456static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 457static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 458 ctl_ua_type ua_type); 459static int ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, 460 ctl_ua_type ua_type); 461static int ctl_abort_task(union ctl_io *io); 462static int ctl_abort_task_set(union ctl_io *io); 463static int ctl_i_t_nexus_reset(union ctl_io *io); 464static void ctl_run_task(union ctl_io *io); 465#ifdef CTL_IO_DELAY 466static void ctl_datamove_timer_wakeup(void *arg); 467static void ctl_done_timer_wakeup(void *arg); 468#endif /* CTL_IO_DELAY */ 469 470static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 471static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 472static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 473static void ctl_datamove_remote_write(union ctl_io *io); 474static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 475static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 476static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 477static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 478 ctl_ha_dt_cb callback); 479static void ctl_datamove_remote_read(union ctl_io *io); 480static void ctl_datamove_remote(union ctl_io *io); 481static int ctl_process_done(union ctl_io *io); 482static void ctl_lun_thread(void *arg); 483static void ctl_thresh_thread(void *arg); 484static void ctl_work_thread(void *arg); 485static void ctl_enqueue_incoming(union ctl_io *io); 486static void ctl_enqueue_rtr(union ctl_io *io); 487static void ctl_enqueue_done(union ctl_io *io); 488static void ctl_enqueue_isc(union ctl_io *io); 489static const struct ctl_cmd_entry * 490 ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa); 491static const struct ctl_cmd_entry * 492 ctl_validate_command(struct ctl_scsiio *ctsio); 493static int ctl_cmd_applicable(uint8_t lun_type, 494 const struct ctl_cmd_entry *entry); 495 496/* 497 * Load the serialization table. This isn't very pretty, but is probably 498 * the easiest way to do it. 499 */ 500#include "ctl_ser_table.c" 501 502/* 503 * We only need to define open, close and ioctl routines for this driver. 504 */ 505static struct cdevsw ctl_cdevsw = { 506 .d_version = D_VERSION, 507 .d_flags = 0, 508 .d_open = ctl_open, 509 .d_close = ctl_close, 510 .d_ioctl = ctl_ioctl, 511 .d_name = "ctl", 512}; 513 514 515MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 516MALLOC_DEFINE(M_CTLIO, "ctlio", "Memory used for CTL requests"); 517 518static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 519 520static moduledata_t ctl_moduledata = { 521 "ctl", 522 ctl_module_event_handler, 523 NULL 524}; 525 526DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 527MODULE_VERSION(ctl, 1); 528 529static struct ctl_frontend ioctl_frontend = 530{ 531 .name = "ioctl", 532}; 533 534static void 535ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 536 union ctl_ha_msg *msg_info) 537{ 538 struct ctl_scsiio *ctsio; 539 540 if (msg_info->hdr.original_sc == NULL) { 541 printf("%s: original_sc == NULL!\n", __func__); 542 /* XXX KDM now what? */ 543 return; 544 } 545 546 ctsio = &msg_info->hdr.original_sc->scsiio; 547 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 548 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 549 ctsio->io_hdr.status = msg_info->hdr.status; 550 ctsio->scsi_status = msg_info->scsi.scsi_status; 551 ctsio->sense_len = msg_info->scsi.sense_len; 552 ctsio->sense_residual = msg_info->scsi.sense_residual; 553 ctsio->residual = msg_info->scsi.residual; 554 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 555 sizeof(ctsio->sense_data)); 556 memcpy(&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 557 &msg_info->scsi.lbalen, sizeof(msg_info->scsi.lbalen)); 558 ctl_enqueue_isc((union ctl_io *)ctsio); 559} 560 561static void 562ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 563 union ctl_ha_msg *msg_info) 564{ 565 struct ctl_scsiio *ctsio; 566 567 if (msg_info->hdr.serializing_sc == NULL) { 568 printf("%s: serializing_sc == NULL!\n", __func__); 569 /* XXX KDM now what? */ 570 return; 571 } 572 573 ctsio = &msg_info->hdr.serializing_sc->scsiio; 574#if 0 575 /* 576 * Attempt to catch the situation where an I/O has 577 * been freed, and we're using it again. 578 */ 579 if (ctsio->io_hdr.io_type == 0xff) { 580 union ctl_io *tmp_io; 581 tmp_io = (union ctl_io *)ctsio; 582 printf("%s: %p use after free!\n", __func__, 583 ctsio); 584 printf("%s: type %d msg %d cdb %x iptl: " 585 "%d:%d:%d:%d tag 0x%04x " 586 "flag %#x status %x\n", 587 __func__, 588 tmp_io->io_hdr.io_type, 589 tmp_io->io_hdr.msg_type, 590 tmp_io->scsiio.cdb[0], 591 tmp_io->io_hdr.nexus.initid.id, 592 tmp_io->io_hdr.nexus.targ_port, 593 tmp_io->io_hdr.nexus.targ_target.id, 594 tmp_io->io_hdr.nexus.targ_lun, 595 (tmp_io->io_hdr.io_type == 596 CTL_IO_TASK) ? 597 tmp_io->taskio.tag_num : 598 tmp_io->scsiio.tag_num, 599 tmp_io->io_hdr.flags, 600 tmp_io->io_hdr.status); 601 } 602#endif 603 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 604 ctl_enqueue_isc((union ctl_io *)ctsio); 605} 606 607/* 608 * ISC (Inter Shelf Communication) event handler. Events from the HA 609 * subsystem come in here. 610 */ 611static void 612ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 613{ 614 struct ctl_softc *ctl_softc; 615 union ctl_io *io; 616 struct ctl_prio *presio; 617 ctl_ha_status isc_status; 618 619 ctl_softc = control_softc; 620 io = NULL; 621 622 623#if 0 624 printf("CTL: Isc Msg event %d\n", event); 625#endif 626 if (event == CTL_HA_EVT_MSG_RECV) { 627 union ctl_ha_msg msg_info; 628 629 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 630 sizeof(msg_info), /*wait*/ 0); 631#if 0 632 printf("CTL: msg_type %d\n", msg_info.msg_type); 633#endif 634 if (isc_status != 0) { 635 printf("Error receiving message, status = %d\n", 636 isc_status); 637 return; 638 } 639 640 switch (msg_info.hdr.msg_type) { 641 case CTL_MSG_SERIALIZE: 642#if 0 643 printf("Serialize\n"); 644#endif 645 io = ctl_alloc_io_nowait(ctl_softc->othersc_pool); 646 if (io == NULL) { 647 printf("ctl_isc_event_handler: can't allocate " 648 "ctl_io!\n"); 649 /* Bad Juju */ 650 /* Need to set busy and send msg back */ 651 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 652 msg_info.hdr.status = CTL_SCSI_ERROR; 653 msg_info.scsi.scsi_status = SCSI_STATUS_BUSY; 654 msg_info.scsi.sense_len = 0; 655 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 656 sizeof(msg_info), 0) > CTL_HA_STATUS_SUCCESS){ 657 } 658 goto bailout; 659 } 660 ctl_zero_io(io); 661 // populate ctsio from msg_info 662 io->io_hdr.io_type = CTL_IO_SCSI; 663 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 664 io->io_hdr.original_sc = msg_info.hdr.original_sc; 665#if 0 666 printf("pOrig %x\n", (int)msg_info.original_sc); 667#endif 668 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 669 CTL_FLAG_IO_ACTIVE; 670 /* 671 * If we're in serialization-only mode, we don't 672 * want to go through full done processing. Thus 673 * the COPY flag. 674 * 675 * XXX KDM add another flag that is more specific. 676 */ 677 if (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY) 678 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 679 io->io_hdr.nexus = msg_info.hdr.nexus; 680#if 0 681 printf("targ %d, port %d, iid %d, lun %d\n", 682 io->io_hdr.nexus.targ_target.id, 683 io->io_hdr.nexus.targ_port, 684 io->io_hdr.nexus.initid.id, 685 io->io_hdr.nexus.targ_lun); 686#endif 687 io->scsiio.tag_num = msg_info.scsi.tag_num; 688 io->scsiio.tag_type = msg_info.scsi.tag_type; 689 memcpy(io->scsiio.cdb, msg_info.scsi.cdb, 690 CTL_MAX_CDBLEN); 691 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 692 const struct ctl_cmd_entry *entry; 693 694 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 695 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 696 io->io_hdr.flags |= 697 entry->flags & CTL_FLAG_DATA_MASK; 698 } 699 ctl_enqueue_isc(io); 700 break; 701 702 /* Performed on the Originating SC, XFER mode only */ 703 case CTL_MSG_DATAMOVE: { 704 struct ctl_sg_entry *sgl; 705 int i, j; 706 707 io = msg_info.hdr.original_sc; 708 if (io == NULL) { 709 printf("%s: original_sc == NULL!\n", __func__); 710 /* XXX KDM do something here */ 711 break; 712 } 713 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 714 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 715 /* 716 * Keep track of this, we need to send it back over 717 * when the datamove is complete. 718 */ 719 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 720 721 if (msg_info.dt.sg_sequence == 0) { 722 /* 723 * XXX KDM we use the preallocated S/G list 724 * here, but we'll need to change this to 725 * dynamic allocation if we need larger S/G 726 * lists. 727 */ 728 if (msg_info.dt.kern_sg_entries > 729 sizeof(io->io_hdr.remote_sglist) / 730 sizeof(io->io_hdr.remote_sglist[0])) { 731 printf("%s: number of S/G entries " 732 "needed %u > allocated num %zd\n", 733 __func__, 734 msg_info.dt.kern_sg_entries, 735 sizeof(io->io_hdr.remote_sglist)/ 736 sizeof(io->io_hdr.remote_sglist[0])); 737 738 /* 739 * XXX KDM send a message back to 740 * the other side to shut down the 741 * DMA. The error will come back 742 * through via the normal channel. 743 */ 744 break; 745 } 746 sgl = io->io_hdr.remote_sglist; 747 memset(sgl, 0, 748 sizeof(io->io_hdr.remote_sglist)); 749 750 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 751 752 io->scsiio.kern_sg_entries = 753 msg_info.dt.kern_sg_entries; 754 io->scsiio.rem_sg_entries = 755 msg_info.dt.kern_sg_entries; 756 io->scsiio.kern_data_len = 757 msg_info.dt.kern_data_len; 758 io->scsiio.kern_total_len = 759 msg_info.dt.kern_total_len; 760 io->scsiio.kern_data_resid = 761 msg_info.dt.kern_data_resid; 762 io->scsiio.kern_rel_offset = 763 msg_info.dt.kern_rel_offset; 764 /* 765 * Clear out per-DMA flags. 766 */ 767 io->io_hdr.flags &= ~CTL_FLAG_RDMA_MASK; 768 /* 769 * Add per-DMA flags that are set for this 770 * particular DMA request. 771 */ 772 io->io_hdr.flags |= msg_info.dt.flags & 773 CTL_FLAG_RDMA_MASK; 774 } else 775 sgl = (struct ctl_sg_entry *) 776 io->scsiio.kern_data_ptr; 777 778 for (i = msg_info.dt.sent_sg_entries, j = 0; 779 i < (msg_info.dt.sent_sg_entries + 780 msg_info.dt.cur_sg_entries); i++, j++) { 781 sgl[i].addr = msg_info.dt.sg_list[j].addr; 782 sgl[i].len = msg_info.dt.sg_list[j].len; 783 784#if 0 785 printf("%s: L: %p,%d -> %p,%d j=%d, i=%d\n", 786 __func__, 787 msg_info.dt.sg_list[j].addr, 788 msg_info.dt.sg_list[j].len, 789 sgl[i].addr, sgl[i].len, j, i); 790#endif 791 } 792#if 0 793 memcpy(&sgl[msg_info.dt.sent_sg_entries], 794 msg_info.dt.sg_list, 795 sizeof(*sgl) * msg_info.dt.cur_sg_entries); 796#endif 797 798 /* 799 * If this is the last piece of the I/O, we've got 800 * the full S/G list. Queue processing in the thread. 801 * Otherwise wait for the next piece. 802 */ 803 if (msg_info.dt.sg_last != 0) 804 ctl_enqueue_isc(io); 805 break; 806 } 807 /* Performed on the Serializing (primary) SC, XFER mode only */ 808 case CTL_MSG_DATAMOVE_DONE: { 809 if (msg_info.hdr.serializing_sc == NULL) { 810 printf("%s: serializing_sc == NULL!\n", 811 __func__); 812 /* XXX KDM now what? */ 813 break; 814 } 815 /* 816 * We grab the sense information here in case 817 * there was a failure, so we can return status 818 * back to the initiator. 819 */ 820 io = msg_info.hdr.serializing_sc; 821 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 822 io->io_hdr.status = msg_info.hdr.status; 823 io->scsiio.scsi_status = msg_info.scsi.scsi_status; 824 io->scsiio.sense_len = msg_info.scsi.sense_len; 825 io->scsiio.sense_residual =msg_info.scsi.sense_residual; 826 io->io_hdr.port_status = msg_info.scsi.fetd_status; 827 io->scsiio.residual = msg_info.scsi.residual; 828 memcpy(&io->scsiio.sense_data,&msg_info.scsi.sense_data, 829 sizeof(io->scsiio.sense_data)); 830 ctl_enqueue_isc(io); 831 break; 832 } 833 834 /* Preformed on Originating SC, SER_ONLY mode */ 835 case CTL_MSG_R2R: 836 io = msg_info.hdr.original_sc; 837 if (io == NULL) { 838 printf("%s: Major Bummer\n", __func__); 839 return; 840 } else { 841#if 0 842 printf("pOrig %x\n",(int) ctsio); 843#endif 844 } 845 io->io_hdr.msg_type = CTL_MSG_R2R; 846 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 847 ctl_enqueue_isc(io); 848 break; 849 850 /* 851 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 852 * mode. 853 * Performed on the Originating (i.e. secondary) SC in XFER 854 * mode 855 */ 856 case CTL_MSG_FINISH_IO: 857 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) 858 ctl_isc_handler_finish_xfer(ctl_softc, 859 &msg_info); 860 else 861 ctl_isc_handler_finish_ser_only(ctl_softc, 862 &msg_info); 863 break; 864 865 /* Preformed on Originating SC */ 866 case CTL_MSG_BAD_JUJU: 867 io = msg_info.hdr.original_sc; 868 if (io == NULL) { 869 printf("%s: Bad JUJU!, original_sc is NULL!\n", 870 __func__); 871 break; 872 } 873 ctl_copy_sense_data(&msg_info, io); 874 /* 875 * IO should have already been cleaned up on other 876 * SC so clear this flag so we won't send a message 877 * back to finish the IO there. 878 */ 879 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 880 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 881 882 /* io = msg_info.hdr.serializing_sc; */ 883 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 884 ctl_enqueue_isc(io); 885 break; 886 887 /* Handle resets sent from the other side */ 888 case CTL_MSG_MANAGE_TASKS: { 889 struct ctl_taskio *taskio; 890 taskio = (struct ctl_taskio *)ctl_alloc_io_nowait( 891 ctl_softc->othersc_pool); 892 if (taskio == NULL) { 893 printf("ctl_isc_event_handler: can't allocate " 894 "ctl_io!\n"); 895 /* Bad Juju */ 896 /* should I just call the proper reset func 897 here??? */ 898 goto bailout; 899 } 900 ctl_zero_io((union ctl_io *)taskio); 901 taskio->io_hdr.io_type = CTL_IO_TASK; 902 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 903 taskio->io_hdr.nexus = msg_info.hdr.nexus; 904 taskio->task_action = msg_info.task.task_action; 905 taskio->tag_num = msg_info.task.tag_num; 906 taskio->tag_type = msg_info.task.tag_type; 907#ifdef CTL_TIME_IO 908 taskio->io_hdr.start_time = time_uptime; 909 getbintime(&taskio->io_hdr.start_bt); 910#if 0 911 cs_prof_gettime(&taskio->io_hdr.start_ticks); 912#endif 913#endif /* CTL_TIME_IO */ 914 ctl_run_task((union ctl_io *)taskio); 915 break; 916 } 917 /* Persistent Reserve action which needs attention */ 918 case CTL_MSG_PERS_ACTION: 919 presio = (struct ctl_prio *)ctl_alloc_io_nowait( 920 ctl_softc->othersc_pool); 921 if (presio == NULL) { 922 printf("ctl_isc_event_handler: can't allocate " 923 "ctl_io!\n"); 924 /* Bad Juju */ 925 /* Need to set busy and send msg back */ 926 goto bailout; 927 } 928 ctl_zero_io((union ctl_io *)presio); 929 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 930 presio->pr_msg = msg_info.pr; 931 ctl_enqueue_isc((union ctl_io *)presio); 932 break; 933 case CTL_MSG_SYNC_FE: 934 rcv_sync_msg = 1; 935 break; 936 default: 937 printf("How did I get here?\n"); 938 } 939 } else if (event == CTL_HA_EVT_MSG_SENT) { 940 if (param != CTL_HA_STATUS_SUCCESS) { 941 printf("Bad status from ctl_ha_msg_send status %d\n", 942 param); 943 } 944 return; 945 } else if (event == CTL_HA_EVT_DISCONNECT) { 946 printf("CTL: Got a disconnect from Isc\n"); 947 return; 948 } else { 949 printf("ctl_isc_event_handler: Unknown event %d\n", event); 950 return; 951 } 952 953bailout: 954 return; 955} 956 957static void 958ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 959{ 960 struct scsi_sense_data *sense; 961 962 sense = &dest->scsiio.sense_data; 963 bcopy(&src->scsi.sense_data, sense, sizeof(*sense)); 964 dest->scsiio.scsi_status = src->scsi.scsi_status; 965 dest->scsiio.sense_len = src->scsi.sense_len; 966 dest->io_hdr.status = src->hdr.status; 967} 968 969static void 970ctl_est_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 971{ 972 ctl_ua_type *pu; 973 974 mtx_assert(&lun->lun_lock, MA_OWNED); 975 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 976 if (pu == NULL) 977 return; 978 pu[initidx % CTL_MAX_INIT_PER_PORT] |= ua; 979} 980 981static void 982ctl_est_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 983{ 984 int i, j; 985 986 mtx_assert(&lun->lun_lock, MA_OWNED); 987 for (i = 0; i < CTL_MAX_PORTS; i++) { 988 if (lun->pending_ua[i] == NULL) 989 continue; 990 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 991 if (i * CTL_MAX_INIT_PER_PORT + j == except) 992 continue; 993 lun->pending_ua[i][j] |= ua; 994 } 995 } 996} 997 998static void 999ctl_clr_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 1000{ 1001 ctl_ua_type *pu; 1002 1003 mtx_assert(&lun->lun_lock, MA_OWNED); 1004 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1005 if (pu == NULL) 1006 return; 1007 pu[initidx % CTL_MAX_INIT_PER_PORT] &= ~ua; 1008} 1009 1010static void 1011ctl_clr_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1012{ 1013 int i, j; 1014 1015 mtx_assert(&lun->lun_lock, MA_OWNED); 1016 for (i = 0; i < CTL_MAX_PORTS; i++) { 1017 if (lun->pending_ua[i] == NULL) 1018 continue; 1019 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 1020 if (i * CTL_MAX_INIT_PER_PORT + j == except) 1021 continue; 1022 lun->pending_ua[i][j] &= ~ua; 1023 } 1024 } 1025} 1026 1027static int 1028ctl_ha_state_sysctl(SYSCTL_HANDLER_ARGS) 1029{ 1030 struct ctl_softc *softc = (struct ctl_softc *)arg1; 1031 struct ctl_lun *lun; 1032 int error, value; 1033 1034 if (softc->flags & CTL_FLAG_ACTIVE_SHELF) 1035 value = 0; 1036 else 1037 value = 1; 1038 1039 error = sysctl_handle_int(oidp, &value, 0, req); 1040 if ((error != 0) || (req->newptr == NULL)) 1041 return (error); 1042 1043 mtx_lock(&softc->ctl_lock); 1044 if (value == 0) 1045 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1046 else 1047 softc->flags &= ~CTL_FLAG_ACTIVE_SHELF; 1048 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1049 mtx_lock(&lun->lun_lock); 1050 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 1051 mtx_unlock(&lun->lun_lock); 1052 } 1053 mtx_unlock(&softc->ctl_lock); 1054 return (0); 1055} 1056 1057static int 1058ctl_init(void) 1059{ 1060 struct ctl_softc *softc; 1061 void *other_pool; 1062 struct ctl_port *port; 1063 int i, error, retval; 1064 //int isc_retval; 1065 1066 retval = 0; 1067 ctl_pause_rtr = 0; 1068 rcv_sync_msg = 0; 1069 1070 control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 1071 M_WAITOK | M_ZERO); 1072 softc = control_softc; 1073 1074 softc->dev = make_dev(&ctl_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, 1075 "cam/ctl"); 1076 1077 softc->dev->si_drv1 = softc; 1078 1079 /* 1080 * By default, return a "bad LUN" peripheral qualifier for unknown 1081 * LUNs. The user can override this default using the tunable or 1082 * sysctl. See the comment in ctl_inquiry_std() for more details. 1083 */ 1084 softc->inquiry_pq_no_lun = 1; 1085 TUNABLE_INT_FETCH("kern.cam.ctl.inquiry_pq_no_lun", 1086 &softc->inquiry_pq_no_lun); 1087 sysctl_ctx_init(&softc->sysctl_ctx); 1088 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1089 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 1090 CTLFLAG_RD, 0, "CAM Target Layer"); 1091 1092 if (softc->sysctl_tree == NULL) { 1093 printf("%s: unable to allocate sysctl tree\n", __func__); 1094 destroy_dev(softc->dev); 1095 free(control_softc, M_DEVBUF); 1096 control_softc = NULL; 1097 return (ENOMEM); 1098 } 1099 1100 SYSCTL_ADD_INT(&softc->sysctl_ctx, 1101 SYSCTL_CHILDREN(softc->sysctl_tree), OID_AUTO, 1102 "inquiry_pq_no_lun", CTLFLAG_RW, 1103 &softc->inquiry_pq_no_lun, 0, 1104 "Report no lun possible for invalid LUNs"); 1105 1106 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 1107 softc->io_zone = uma_zcreate("CTL IO", sizeof(union ctl_io), 1108 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); 1109 softc->open_count = 0; 1110 1111 /* 1112 * Default to actually sending a SYNCHRONIZE CACHE command down to 1113 * the drive. 1114 */ 1115 softc->flags = CTL_FLAG_REAL_SYNC; 1116 1117 /* 1118 * In Copan's HA scheme, the "master" and "slave" roles are 1119 * figured out through the slot the controller is in. Although it 1120 * is an active/active system, someone has to be in charge. 1121 */ 1122 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1123 OID_AUTO, "ha_id", CTLFLAG_RDTUN, &softc->ha_id, 0, 1124 "HA head ID (0 - no HA)"); 1125 if (softc->ha_id == 0) { 1126 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1127 softc->is_single = 1; 1128 softc->port_offset = 0; 1129 } else 1130 softc->port_offset = (softc->ha_id - 1) * CTL_MAX_PORTS; 1131 softc->persis_offset = softc->port_offset * CTL_MAX_INIT_PER_PORT; 1132 1133 /* 1134 * XXX KDM need to figure out where we want to get our target ID 1135 * and WWID. Is it different on each port? 1136 */ 1137 softc->target.id = 0; 1138 softc->target.wwid[0] = 0x12345678; 1139 softc->target.wwid[1] = 0x87654321; 1140 STAILQ_INIT(&softc->lun_list); 1141 STAILQ_INIT(&softc->pending_lun_queue); 1142 STAILQ_INIT(&softc->fe_list); 1143 STAILQ_INIT(&softc->port_list); 1144 STAILQ_INIT(&softc->be_list); 1145 ctl_tpc_init(softc); 1146 1147 if (ctl_pool_create(softc, "othersc", CTL_POOL_ENTRIES_OTHER_SC, 1148 &other_pool) != 0) 1149 { 1150 printf("ctl: can't allocate %d entry other SC pool, " 1151 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1152 return (ENOMEM); 1153 } 1154 softc->othersc_pool = other_pool; 1155 1156 if (worker_threads <= 0) 1157 worker_threads = max(1, mp_ncpus / 4); 1158 if (worker_threads > CTL_MAX_THREADS) 1159 worker_threads = CTL_MAX_THREADS; 1160 1161 for (i = 0; i < worker_threads; i++) { 1162 struct ctl_thread *thr = &softc->threads[i]; 1163 1164 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1165 thr->ctl_softc = softc; 1166 STAILQ_INIT(&thr->incoming_queue); 1167 STAILQ_INIT(&thr->rtr_queue); 1168 STAILQ_INIT(&thr->done_queue); 1169 STAILQ_INIT(&thr->isc_queue); 1170 1171 error = kproc_kthread_add(ctl_work_thread, thr, 1172 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1173 if (error != 0) { 1174 printf("error creating CTL work thread!\n"); 1175 ctl_pool_free(other_pool); 1176 return (error); 1177 } 1178 } 1179 error = kproc_kthread_add(ctl_lun_thread, softc, 1180 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1181 if (error != 0) { 1182 printf("error creating CTL lun thread!\n"); 1183 ctl_pool_free(other_pool); 1184 return (error); 1185 } 1186 error = kproc_kthread_add(ctl_thresh_thread, softc, 1187 &softc->ctl_proc, NULL, 0, 0, "ctl", "thresh"); 1188 if (error != 0) { 1189 printf("error creating CTL threshold thread!\n"); 1190 ctl_pool_free(other_pool); 1191 return (error); 1192 } 1193 if (bootverbose) 1194 printf("ctl: CAM Target Layer loaded\n"); 1195 1196 /* 1197 * Initialize the ioctl front end. 1198 */ 1199 ctl_frontend_register(&ioctl_frontend); 1200 port = &softc->ioctl_info.port; 1201 port->frontend = &ioctl_frontend; 1202 sprintf(softc->ioctl_info.port_name, "ioctl"); 1203 port->port_type = CTL_PORT_IOCTL; 1204 port->num_requested_ctl_io = 100; 1205 port->port_name = softc->ioctl_info.port_name; 1206 port->port_online = ctl_ioctl_online; 1207 port->port_offline = ctl_ioctl_offline; 1208 port->onoff_arg = &softc->ioctl_info; 1209 port->lun_enable = ctl_ioctl_lun_enable; 1210 port->lun_disable = ctl_ioctl_lun_disable; 1211 port->targ_lun_arg = &softc->ioctl_info; 1212 port->fe_datamove = ctl_ioctl_datamove; 1213 port->fe_done = ctl_ioctl_done; 1214 port->max_targets = 15; 1215 port->max_target_id = 15; 1216 1217 if (ctl_port_register(&softc->ioctl_info.port) != 0) { 1218 printf("ctl: ioctl front end registration failed, will " 1219 "continue anyway\n"); 1220 } 1221 1222 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1223 OID_AUTO, "ha_state", CTLTYPE_INT | CTLFLAG_RWTUN, 1224 softc, 0, ctl_ha_state_sysctl, "I", "HA state for this head"); 1225 1226#ifdef CTL_IO_DELAY 1227 if (sizeof(struct callout) > CTL_TIMER_BYTES) { 1228 printf("sizeof(struct callout) %zd > CTL_TIMER_BYTES %zd\n", 1229 sizeof(struct callout), CTL_TIMER_BYTES); 1230 return (EINVAL); 1231 } 1232#endif /* CTL_IO_DELAY */ 1233 1234 return (0); 1235} 1236 1237void 1238ctl_shutdown(void) 1239{ 1240 struct ctl_softc *softc; 1241 struct ctl_lun *lun, *next_lun; 1242 1243 softc = (struct ctl_softc *)control_softc; 1244 1245 if (ctl_port_deregister(&softc->ioctl_info.port) != 0) 1246 printf("ctl: ioctl front end deregistration failed\n"); 1247 1248 mtx_lock(&softc->ctl_lock); 1249 1250 /* 1251 * Free up each LUN. 1252 */ 1253 for (lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; lun = next_lun){ 1254 next_lun = STAILQ_NEXT(lun, links); 1255 ctl_free_lun(lun); 1256 } 1257 1258 mtx_unlock(&softc->ctl_lock); 1259 1260 ctl_frontend_deregister(&ioctl_frontend); 1261 1262#if 0 1263 ctl_shutdown_thread(softc->work_thread); 1264 mtx_destroy(&softc->queue_lock); 1265#endif 1266 1267 ctl_tpc_shutdown(softc); 1268 uma_zdestroy(softc->io_zone); 1269 mtx_destroy(&softc->ctl_lock); 1270 1271 destroy_dev(softc->dev); 1272 1273 sysctl_ctx_free(&softc->sysctl_ctx); 1274 1275 free(control_softc, M_DEVBUF); 1276 control_softc = NULL; 1277 1278 if (bootverbose) 1279 printf("ctl: CAM Target Layer unloaded\n"); 1280} 1281 1282static int 1283ctl_module_event_handler(module_t mod, int what, void *arg) 1284{ 1285 1286 switch (what) { 1287 case MOD_LOAD: 1288 return (ctl_init()); 1289 case MOD_UNLOAD: 1290 return (EBUSY); 1291 default: 1292 return (EOPNOTSUPP); 1293 } 1294} 1295 1296/* 1297 * XXX KDM should we do some access checks here? Bump a reference count to 1298 * prevent a CTL module from being unloaded while someone has it open? 1299 */ 1300static int 1301ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1302{ 1303 return (0); 1304} 1305 1306static int 1307ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1308{ 1309 return (0); 1310} 1311 1312int 1313ctl_port_enable(ctl_port_type port_type) 1314{ 1315 struct ctl_softc *softc = control_softc; 1316 struct ctl_port *port; 1317 1318 if (softc->is_single == 0) { 1319 union ctl_ha_msg msg_info; 1320 int isc_retval; 1321 1322#if 0 1323 printf("%s: HA mode, synchronizing frontend enable\n", 1324 __func__); 1325#endif 1326 msg_info.hdr.msg_type = CTL_MSG_SYNC_FE; 1327 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1328 sizeof(msg_info), 1 )) > CTL_HA_STATUS_SUCCESS) { 1329 printf("Sync msg send error retval %d\n", isc_retval); 1330 } 1331 if (!rcv_sync_msg) { 1332 isc_retval=ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 1333 sizeof(msg_info), 1); 1334 } 1335#if 0 1336 printf("CTL:Frontend Enable\n"); 1337 } else { 1338 printf("%s: single mode, skipping frontend synchronization\n", 1339 __func__); 1340#endif 1341 } 1342 1343 STAILQ_FOREACH(port, &softc->port_list, links) { 1344 if (port_type & port->port_type) 1345 { 1346#if 0 1347 printf("port %d\n", port->targ_port); 1348#endif 1349 ctl_port_online(port); 1350 } 1351 } 1352 1353 return (0); 1354} 1355 1356int 1357ctl_port_disable(ctl_port_type port_type) 1358{ 1359 struct ctl_softc *softc; 1360 struct ctl_port *port; 1361 1362 softc = control_softc; 1363 1364 STAILQ_FOREACH(port, &softc->port_list, links) { 1365 if (port_type & port->port_type) 1366 ctl_port_offline(port); 1367 } 1368 1369 return (0); 1370} 1371 1372/* 1373 * Returns 0 for success, 1 for failure. 1374 * Currently the only failure mode is if there aren't enough entries 1375 * allocated. So, in case of a failure, look at num_entries_dropped, 1376 * reallocate and try again. 1377 */ 1378int 1379ctl_port_list(struct ctl_port_entry *entries, int num_entries_alloced, 1380 int *num_entries_filled, int *num_entries_dropped, 1381 ctl_port_type port_type, int no_virtual) 1382{ 1383 struct ctl_softc *softc; 1384 struct ctl_port *port; 1385 int entries_dropped, entries_filled; 1386 int retval; 1387 int i; 1388 1389 softc = control_softc; 1390 1391 retval = 0; 1392 entries_filled = 0; 1393 entries_dropped = 0; 1394 1395 i = 0; 1396 mtx_lock(&softc->ctl_lock); 1397 STAILQ_FOREACH(port, &softc->port_list, links) { 1398 struct ctl_port_entry *entry; 1399 1400 if ((port->port_type & port_type) == 0) 1401 continue; 1402 1403 if ((no_virtual != 0) 1404 && (port->virtual_port != 0)) 1405 continue; 1406 1407 if (entries_filled >= num_entries_alloced) { 1408 entries_dropped++; 1409 continue; 1410 } 1411 entry = &entries[i]; 1412 1413 entry->port_type = port->port_type; 1414 strlcpy(entry->port_name, port->port_name, 1415 sizeof(entry->port_name)); 1416 entry->physical_port = port->physical_port; 1417 entry->virtual_port = port->virtual_port; 1418 entry->wwnn = port->wwnn; 1419 entry->wwpn = port->wwpn; 1420 1421 i++; 1422 entries_filled++; 1423 } 1424 1425 mtx_unlock(&softc->ctl_lock); 1426 1427 if (entries_dropped > 0) 1428 retval = 1; 1429 1430 *num_entries_dropped = entries_dropped; 1431 *num_entries_filled = entries_filled; 1432 1433 return (retval); 1434} 1435 1436static void 1437ctl_ioctl_online(void *arg) 1438{ 1439 struct ctl_ioctl_info *ioctl_info; 1440 1441 ioctl_info = (struct ctl_ioctl_info *)arg; 1442 1443 ioctl_info->flags |= CTL_IOCTL_FLAG_ENABLED; 1444} 1445 1446static void 1447ctl_ioctl_offline(void *arg) 1448{ 1449 struct ctl_ioctl_info *ioctl_info; 1450 1451 ioctl_info = (struct ctl_ioctl_info *)arg; 1452 1453 ioctl_info->flags &= ~CTL_IOCTL_FLAG_ENABLED; 1454} 1455 1456/* 1457 * Remove an initiator by port number and initiator ID. 1458 * Returns 0 for success, -1 for failure. 1459 */ 1460int 1461ctl_remove_initiator(struct ctl_port *port, int iid) 1462{ 1463 struct ctl_softc *softc = control_softc; 1464 1465 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1466 1467 if (iid > CTL_MAX_INIT_PER_PORT) { 1468 printf("%s: initiator ID %u > maximun %u!\n", 1469 __func__, iid, CTL_MAX_INIT_PER_PORT); 1470 return (-1); 1471 } 1472 1473 mtx_lock(&softc->ctl_lock); 1474 port->wwpn_iid[iid].in_use--; 1475 port->wwpn_iid[iid].last_use = time_uptime; 1476 mtx_unlock(&softc->ctl_lock); 1477 1478 return (0); 1479} 1480 1481/* 1482 * Add an initiator to the initiator map. 1483 * Returns iid for success, < 0 for failure. 1484 */ 1485int 1486ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 1487{ 1488 struct ctl_softc *softc = control_softc; 1489 time_t best_time; 1490 int i, best; 1491 1492 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1493 1494 if (iid >= CTL_MAX_INIT_PER_PORT) { 1495 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 1496 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 1497 free(name, M_CTL); 1498 return (-1); 1499 } 1500 1501 mtx_lock(&softc->ctl_lock); 1502 1503 if (iid < 0 && (wwpn != 0 || name != NULL)) { 1504 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1505 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 1506 iid = i; 1507 break; 1508 } 1509 if (name != NULL && port->wwpn_iid[i].name != NULL && 1510 strcmp(name, port->wwpn_iid[i].name) == 0) { 1511 iid = i; 1512 break; 1513 } 1514 } 1515 } 1516 1517 if (iid < 0) { 1518 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1519 if (port->wwpn_iid[i].in_use == 0 && 1520 port->wwpn_iid[i].wwpn == 0 && 1521 port->wwpn_iid[i].name == NULL) { 1522 iid = i; 1523 break; 1524 } 1525 } 1526 } 1527 1528 if (iid < 0) { 1529 best = -1; 1530 best_time = INT32_MAX; 1531 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1532 if (port->wwpn_iid[i].in_use == 0) { 1533 if (port->wwpn_iid[i].last_use < best_time) { 1534 best = i; 1535 best_time = port->wwpn_iid[i].last_use; 1536 } 1537 } 1538 } 1539 iid = best; 1540 } 1541 1542 if (iid < 0) { 1543 mtx_unlock(&softc->ctl_lock); 1544 free(name, M_CTL); 1545 return (-2); 1546 } 1547 1548 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 1549 /* 1550 * This is not an error yet. 1551 */ 1552 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 1553#if 0 1554 printf("%s: port %d iid %u WWPN %#jx arrived" 1555 " again\n", __func__, port->targ_port, 1556 iid, (uintmax_t)wwpn); 1557#endif 1558 goto take; 1559 } 1560 if (name != NULL && port->wwpn_iid[iid].name != NULL && 1561 strcmp(name, port->wwpn_iid[iid].name) == 0) { 1562#if 0 1563 printf("%s: port %d iid %u name '%s' arrived" 1564 " again\n", __func__, port->targ_port, 1565 iid, name); 1566#endif 1567 goto take; 1568 } 1569 1570 /* 1571 * This is an error, but what do we do about it? The 1572 * driver is telling us we have a new WWPN for this 1573 * initiator ID, so we pretty much need to use it. 1574 */ 1575 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 1576 " but WWPN %#jx '%s' is still at that address\n", 1577 __func__, port->targ_port, iid, wwpn, name, 1578 (uintmax_t)port->wwpn_iid[iid].wwpn, 1579 port->wwpn_iid[iid].name); 1580 1581 /* 1582 * XXX KDM clear have_ca and ua_pending on each LUN for 1583 * this initiator. 1584 */ 1585 } 1586take: 1587 free(port->wwpn_iid[iid].name, M_CTL); 1588 port->wwpn_iid[iid].name = name; 1589 port->wwpn_iid[iid].wwpn = wwpn; 1590 port->wwpn_iid[iid].in_use++; 1591 mtx_unlock(&softc->ctl_lock); 1592 1593 return (iid); 1594} 1595 1596static int 1597ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 1598{ 1599 int len; 1600 1601 switch (port->port_type) { 1602 case CTL_PORT_FC: 1603 { 1604 struct scsi_transportid_fcp *id = 1605 (struct scsi_transportid_fcp *)buf; 1606 if (port->wwpn_iid[iid].wwpn == 0) 1607 return (0); 1608 memset(id, 0, sizeof(*id)); 1609 id->format_protocol = SCSI_PROTO_FC; 1610 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 1611 return (sizeof(*id)); 1612 } 1613 case CTL_PORT_ISCSI: 1614 { 1615 struct scsi_transportid_iscsi_port *id = 1616 (struct scsi_transportid_iscsi_port *)buf; 1617 if (port->wwpn_iid[iid].name == NULL) 1618 return (0); 1619 memset(id, 0, 256); 1620 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 1621 SCSI_PROTO_ISCSI; 1622 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 1623 len = roundup2(min(len, 252), 4); 1624 scsi_ulto2b(len, id->additional_length); 1625 return (sizeof(*id) + len); 1626 } 1627 case CTL_PORT_SAS: 1628 { 1629 struct scsi_transportid_sas *id = 1630 (struct scsi_transportid_sas *)buf; 1631 if (port->wwpn_iid[iid].wwpn == 0) 1632 return (0); 1633 memset(id, 0, sizeof(*id)); 1634 id->format_protocol = SCSI_PROTO_SAS; 1635 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 1636 return (sizeof(*id)); 1637 } 1638 default: 1639 { 1640 struct scsi_transportid_spi *id = 1641 (struct scsi_transportid_spi *)buf; 1642 memset(id, 0, sizeof(*id)); 1643 id->format_protocol = SCSI_PROTO_SPI; 1644 scsi_ulto2b(iid, id->scsi_addr); 1645 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 1646 return (sizeof(*id)); 1647 } 1648 } 1649} 1650 1651static int 1652ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id) 1653{ 1654 return (0); 1655} 1656 1657static int 1658ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id) 1659{ 1660 return (0); 1661} 1662 1663/* 1664 * Data movement routine for the CTL ioctl frontend port. 1665 */ 1666static int 1667ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio) 1668{ 1669 struct ctl_sg_entry *ext_sglist, *kern_sglist; 1670 struct ctl_sg_entry ext_entry, kern_entry; 1671 int ext_sglen, ext_sg_entries, kern_sg_entries; 1672 int ext_sg_start, ext_offset; 1673 int len_to_copy, len_copied; 1674 int kern_watermark, ext_watermark; 1675 int ext_sglist_malloced; 1676 int i, j; 1677 1678 ext_sglist_malloced = 0; 1679 ext_sg_start = 0; 1680 ext_offset = 0; 1681 1682 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove\n")); 1683 1684 /* 1685 * If this flag is set, fake the data transfer. 1686 */ 1687 if (ctsio->io_hdr.flags & CTL_FLAG_NO_DATAMOVE) { 1688 ctsio->ext_data_filled = ctsio->ext_data_len; 1689 goto bailout; 1690 } 1691 1692 /* 1693 * To simplify things here, if we have a single buffer, stick it in 1694 * a S/G entry and just make it a single entry S/G list. 1695 */ 1696 if (ctsio->io_hdr.flags & CTL_FLAG_EDPTR_SGLIST) { 1697 int len_seen; 1698 1699 ext_sglen = ctsio->ext_sg_entries * sizeof(*ext_sglist); 1700 1701 ext_sglist = (struct ctl_sg_entry *)malloc(ext_sglen, M_CTL, 1702 M_WAITOK); 1703 ext_sglist_malloced = 1; 1704 if (copyin(ctsio->ext_data_ptr, ext_sglist, 1705 ext_sglen) != 0) { 1706 ctl_set_internal_failure(ctsio, 1707 /*sks_valid*/ 0, 1708 /*retry_count*/ 0); 1709 goto bailout; 1710 } 1711 ext_sg_entries = ctsio->ext_sg_entries; 1712 len_seen = 0; 1713 for (i = 0; i < ext_sg_entries; i++) { 1714 if ((len_seen + ext_sglist[i].len) >= 1715 ctsio->ext_data_filled) { 1716 ext_sg_start = i; 1717 ext_offset = ctsio->ext_data_filled - len_seen; 1718 break; 1719 } 1720 len_seen += ext_sglist[i].len; 1721 } 1722 } else { 1723 ext_sglist = &ext_entry; 1724 ext_sglist->addr = ctsio->ext_data_ptr; 1725 ext_sglist->len = ctsio->ext_data_len; 1726 ext_sg_entries = 1; 1727 ext_sg_start = 0; 1728 ext_offset = ctsio->ext_data_filled; 1729 } 1730 1731 if (ctsio->kern_sg_entries > 0) { 1732 kern_sglist = (struct ctl_sg_entry *)ctsio->kern_data_ptr; 1733 kern_sg_entries = ctsio->kern_sg_entries; 1734 } else { 1735 kern_sglist = &kern_entry; 1736 kern_sglist->addr = ctsio->kern_data_ptr; 1737 kern_sglist->len = ctsio->kern_data_len; 1738 kern_sg_entries = 1; 1739 } 1740 1741 1742 kern_watermark = 0; 1743 ext_watermark = ext_offset; 1744 len_copied = 0; 1745 for (i = ext_sg_start, j = 0; 1746 i < ext_sg_entries && j < kern_sg_entries;) { 1747 uint8_t *ext_ptr, *kern_ptr; 1748 1749 len_to_copy = ctl_min(ext_sglist[i].len - ext_watermark, 1750 kern_sglist[j].len - kern_watermark); 1751 1752 ext_ptr = (uint8_t *)ext_sglist[i].addr; 1753 ext_ptr = ext_ptr + ext_watermark; 1754 if (ctsio->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 1755 /* 1756 * XXX KDM fix this! 1757 */ 1758 panic("need to implement bus address support"); 1759#if 0 1760 kern_ptr = bus_to_virt(kern_sglist[j].addr); 1761#endif 1762 } else 1763 kern_ptr = (uint8_t *)kern_sglist[j].addr; 1764 kern_ptr = kern_ptr + kern_watermark; 1765 1766 kern_watermark += len_to_copy; 1767 ext_watermark += len_to_copy; 1768 1769 if ((ctsio->io_hdr.flags & CTL_FLAG_DATA_MASK) == 1770 CTL_FLAG_DATA_IN) { 1771 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1772 "bytes to user\n", len_to_copy)); 1773 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1774 "to %p\n", kern_ptr, ext_ptr)); 1775 if (copyout(kern_ptr, ext_ptr, len_to_copy) != 0) { 1776 ctl_set_internal_failure(ctsio, 1777 /*sks_valid*/ 0, 1778 /*retry_count*/ 0); 1779 goto bailout; 1780 } 1781 } else { 1782 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1783 "bytes from user\n", len_to_copy)); 1784 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1785 "to %p\n", ext_ptr, kern_ptr)); 1786 if (copyin(ext_ptr, kern_ptr, len_to_copy)!= 0){ 1787 ctl_set_internal_failure(ctsio, 1788 /*sks_valid*/ 0, 1789 /*retry_count*/0); 1790 goto bailout; 1791 } 1792 } 1793 1794 len_copied += len_to_copy; 1795 1796 if (ext_sglist[i].len == ext_watermark) { 1797 i++; 1798 ext_watermark = 0; 1799 } 1800 1801 if (kern_sglist[j].len == kern_watermark) { 1802 j++; 1803 kern_watermark = 0; 1804 } 1805 } 1806 1807 ctsio->ext_data_filled += len_copied; 1808 1809 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_sg_entries: %d, " 1810 "kern_sg_entries: %d\n", ext_sg_entries, 1811 kern_sg_entries)); 1812 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_data_len = %d, " 1813 "kern_data_len = %d\n", ctsio->ext_data_len, 1814 ctsio->kern_data_len)); 1815 1816 1817 /* XXX KDM set residual?? */ 1818bailout: 1819 1820 if (ext_sglist_malloced != 0) 1821 free(ext_sglist, M_CTL); 1822 1823 return (CTL_RETVAL_COMPLETE); 1824} 1825 1826/* 1827 * Serialize a command that went down the "wrong" side, and so was sent to 1828 * this controller for execution. The logic is a little different than the 1829 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 1830 * sent back to the other side, but in the success case, we execute the 1831 * command on this side (XFER mode) or tell the other side to execute it 1832 * (SER_ONLY mode). 1833 */ 1834static int 1835ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 1836{ 1837 struct ctl_softc *ctl_softc; 1838 union ctl_ha_msg msg_info; 1839 struct ctl_lun *lun; 1840 int retval = 0; 1841 uint32_t targ_lun; 1842 1843 ctl_softc = control_softc; 1844 1845 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 1846 lun = ctl_softc->ctl_luns[targ_lun]; 1847 if (lun==NULL) 1848 { 1849 /* 1850 * Why isn't LUN defined? The other side wouldn't 1851 * send a cmd if the LUN is undefined. 1852 */ 1853 printf("%s: Bad JUJU!, LUN is NULL!\n", __func__); 1854 1855 /* "Logical unit not supported" */ 1856 ctl_set_sense_data(&msg_info.scsi.sense_data, 1857 lun, 1858 /*sense_format*/SSD_TYPE_NONE, 1859 /*current_error*/ 1, 1860 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1861 /*asc*/ 0x25, 1862 /*ascq*/ 0x00, 1863 SSD_ELEM_NONE); 1864 1865 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1866 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1867 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1868 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1869 msg_info.hdr.serializing_sc = NULL; 1870 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1871 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1872 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1873 } 1874 return(1); 1875 1876 } 1877 1878 mtx_lock(&lun->lun_lock); 1879 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1880 1881 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 1882 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 1883 ooa_links))) { 1884 case CTL_ACTION_BLOCK: 1885 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 1886 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 1887 blocked_links); 1888 break; 1889 case CTL_ACTION_PASS: 1890 case CTL_ACTION_SKIP: 1891 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 1892 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 1893 ctl_enqueue_rtr((union ctl_io *)ctsio); 1894 } else { 1895 1896 /* send msg back to other side */ 1897 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1898 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 1899 msg_info.hdr.msg_type = CTL_MSG_R2R; 1900#if 0 1901 printf("2. pOrig %x\n", (int)msg_info.hdr.original_sc); 1902#endif 1903 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1904 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1905 } 1906 } 1907 break; 1908 case CTL_ACTION_OVERLAP: 1909 /* OVERLAPPED COMMANDS ATTEMPTED */ 1910 ctl_set_sense_data(&msg_info.scsi.sense_data, 1911 lun, 1912 /*sense_format*/SSD_TYPE_NONE, 1913 /*current_error*/ 1, 1914 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1915 /*asc*/ 0x4E, 1916 /*ascq*/ 0x00, 1917 SSD_ELEM_NONE); 1918 1919 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1920 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1921 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1922 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1923 msg_info.hdr.serializing_sc = NULL; 1924 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1925#if 0 1926 printf("BAD JUJU:Major Bummer Overlap\n"); 1927#endif 1928 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1929 retval = 1; 1930 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1931 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1932 } 1933 break; 1934 case CTL_ACTION_OVERLAP_TAG: 1935 /* TAGGED OVERLAPPED COMMANDS (NN = QUEUE TAG) */ 1936 ctl_set_sense_data(&msg_info.scsi.sense_data, 1937 lun, 1938 /*sense_format*/SSD_TYPE_NONE, 1939 /*current_error*/ 1, 1940 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1941 /*asc*/ 0x4D, 1942 /*ascq*/ ctsio->tag_num & 0xff, 1943 SSD_ELEM_NONE); 1944 1945 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1946 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1947 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1948 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1949 msg_info.hdr.serializing_sc = NULL; 1950 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1951#if 0 1952 printf("BAD JUJU:Major Bummer Overlap Tag\n"); 1953#endif 1954 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1955 retval = 1; 1956 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1957 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1958 } 1959 break; 1960 case CTL_ACTION_ERROR: 1961 default: 1962 /* "Internal target failure" */ 1963 ctl_set_sense_data(&msg_info.scsi.sense_data, 1964 lun, 1965 /*sense_format*/SSD_TYPE_NONE, 1966 /*current_error*/ 1, 1967 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 1968 /*asc*/ 0x44, 1969 /*ascq*/ 0x00, 1970 SSD_ELEM_NONE); 1971 1972 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1973 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1974 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1975 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1976 msg_info.hdr.serializing_sc = NULL; 1977 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1978#if 0 1979 printf("BAD JUJU:Major Bummer HW Error\n"); 1980#endif 1981 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1982 retval = 1; 1983 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1984 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1985 } 1986 break; 1987 } 1988 mtx_unlock(&lun->lun_lock); 1989 return (retval); 1990} 1991 1992static int 1993ctl_ioctl_submit_wait(union ctl_io *io) 1994{ 1995 struct ctl_fe_ioctl_params params; 1996 ctl_fe_ioctl_state last_state; 1997 int done, retval; 1998 1999 retval = 0; 2000 2001 bzero(¶ms, sizeof(params)); 2002 2003 mtx_init(¶ms.ioctl_mtx, "ctliocmtx", NULL, MTX_DEF); 2004 cv_init(¶ms.sem, "ctlioccv"); 2005 params.state = CTL_IOCTL_INPROG; 2006 last_state = params.state; 2007 2008 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = ¶ms; 2009 2010 CTL_DEBUG_PRINT(("ctl_ioctl_submit_wait\n")); 2011 2012 /* This shouldn't happen */ 2013 if ((retval = ctl_queue(io)) != CTL_RETVAL_COMPLETE) 2014 return (retval); 2015 2016 done = 0; 2017 2018 do { 2019 mtx_lock(¶ms.ioctl_mtx); 2020 /* 2021 * Check the state here, and don't sleep if the state has 2022 * already changed (i.e. wakeup has already occured, but we 2023 * weren't waiting yet). 2024 */ 2025 if (params.state == last_state) { 2026 /* XXX KDM cv_wait_sig instead? */ 2027 cv_wait(¶ms.sem, ¶ms.ioctl_mtx); 2028 } 2029 last_state = params.state; 2030 2031 switch (params.state) { 2032 case CTL_IOCTL_INPROG: 2033 /* Why did we wake up? */ 2034 /* XXX KDM error here? */ 2035 mtx_unlock(¶ms.ioctl_mtx); 2036 break; 2037 case CTL_IOCTL_DATAMOVE: 2038 CTL_DEBUG_PRINT(("got CTL_IOCTL_DATAMOVE\n")); 2039 2040 /* 2041 * change last_state back to INPROG to avoid 2042 * deadlock on subsequent data moves. 2043 */ 2044 params.state = last_state = CTL_IOCTL_INPROG; 2045 2046 mtx_unlock(¶ms.ioctl_mtx); 2047 ctl_ioctl_do_datamove(&io->scsiio); 2048 /* 2049 * Note that in some cases, most notably writes, 2050 * this will queue the I/O and call us back later. 2051 * In other cases, generally reads, this routine 2052 * will immediately call back and wake us up, 2053 * probably using our own context. 2054 */ 2055 io->scsiio.be_move_done(io); 2056 break; 2057 case CTL_IOCTL_DONE: 2058 mtx_unlock(¶ms.ioctl_mtx); 2059 CTL_DEBUG_PRINT(("got CTL_IOCTL_DONE\n")); 2060 done = 1; 2061 break; 2062 default: 2063 mtx_unlock(¶ms.ioctl_mtx); 2064 /* XXX KDM error here? */ 2065 break; 2066 } 2067 } while (done == 0); 2068 2069 mtx_destroy(¶ms.ioctl_mtx); 2070 cv_destroy(¶ms.sem); 2071 2072 return (CTL_RETVAL_COMPLETE); 2073} 2074 2075static void 2076ctl_ioctl_datamove(union ctl_io *io) 2077{ 2078 struct ctl_fe_ioctl_params *params; 2079 2080 params = (struct ctl_fe_ioctl_params *) 2081 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 2082 2083 mtx_lock(¶ms->ioctl_mtx); 2084 params->state = CTL_IOCTL_DATAMOVE; 2085 cv_broadcast(¶ms->sem); 2086 mtx_unlock(¶ms->ioctl_mtx); 2087} 2088 2089static void 2090ctl_ioctl_done(union ctl_io *io) 2091{ 2092 struct ctl_fe_ioctl_params *params; 2093 2094 params = (struct ctl_fe_ioctl_params *) 2095 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 2096 2097 mtx_lock(¶ms->ioctl_mtx); 2098 params->state = CTL_IOCTL_DONE; 2099 cv_broadcast(¶ms->sem); 2100 mtx_unlock(¶ms->ioctl_mtx); 2101} 2102 2103static void 2104ctl_ioctl_hard_startstop_callback(void *arg, struct cfi_metatask *metatask) 2105{ 2106 struct ctl_fe_ioctl_startstop_info *sd_info; 2107 2108 sd_info = (struct ctl_fe_ioctl_startstop_info *)arg; 2109 2110 sd_info->hs_info.status = metatask->status; 2111 sd_info->hs_info.total_luns = metatask->taskinfo.startstop.total_luns; 2112 sd_info->hs_info.luns_complete = 2113 metatask->taskinfo.startstop.luns_complete; 2114 sd_info->hs_info.luns_failed = metatask->taskinfo.startstop.luns_failed; 2115 2116 cv_broadcast(&sd_info->sem); 2117} 2118 2119static void 2120ctl_ioctl_bbrread_callback(void *arg, struct cfi_metatask *metatask) 2121{ 2122 struct ctl_fe_ioctl_bbrread_info *fe_bbr_info; 2123 2124 fe_bbr_info = (struct ctl_fe_ioctl_bbrread_info *)arg; 2125 2126 mtx_lock(fe_bbr_info->lock); 2127 fe_bbr_info->bbr_info->status = metatask->status; 2128 fe_bbr_info->bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2129 fe_bbr_info->wakeup_done = 1; 2130 mtx_unlock(fe_bbr_info->lock); 2131 2132 cv_broadcast(&fe_bbr_info->sem); 2133} 2134 2135/* 2136 * Returns 0 for success, errno for failure. 2137 */ 2138static int 2139ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2140 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2141{ 2142 union ctl_io *io; 2143 int retval; 2144 2145 retval = 0; 2146 2147 mtx_lock(&lun->lun_lock); 2148 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2149 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2150 ooa_links)) { 2151 struct ctl_ooa_entry *entry; 2152 2153 /* 2154 * If we've got more than we can fit, just count the 2155 * remaining entries. 2156 */ 2157 if (*cur_fill_num >= ooa_hdr->alloc_num) 2158 continue; 2159 2160 entry = &kern_entries[*cur_fill_num]; 2161 2162 entry->tag_num = io->scsiio.tag_num; 2163 entry->lun_num = lun->lun; 2164#ifdef CTL_TIME_IO 2165 entry->start_bt = io->io_hdr.start_bt; 2166#endif 2167 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2168 entry->cdb_len = io->scsiio.cdb_len; 2169 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2170 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2171 2172 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2173 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2174 2175 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2176 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2177 2178 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2179 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2180 2181 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2182 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2183 } 2184 mtx_unlock(&lun->lun_lock); 2185 2186 return (retval); 2187} 2188 2189static void * 2190ctl_copyin_alloc(void *user_addr, int len, char *error_str, 2191 size_t error_str_len) 2192{ 2193 void *kptr; 2194 2195 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2196 2197 if (copyin(user_addr, kptr, len) != 0) { 2198 snprintf(error_str, error_str_len, "Error copying %d bytes " 2199 "from user address %p to kernel address %p", len, 2200 user_addr, kptr); 2201 free(kptr, M_CTL); 2202 return (NULL); 2203 } 2204 2205 return (kptr); 2206} 2207 2208static void 2209ctl_free_args(int num_args, struct ctl_be_arg *args) 2210{ 2211 int i; 2212 2213 if (args == NULL) 2214 return; 2215 2216 for (i = 0; i < num_args; i++) { 2217 free(args[i].kname, M_CTL); 2218 free(args[i].kvalue, M_CTL); 2219 } 2220 2221 free(args, M_CTL); 2222} 2223 2224static struct ctl_be_arg * 2225ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2226 char *error_str, size_t error_str_len) 2227{ 2228 struct ctl_be_arg *args; 2229 int i; 2230 2231 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2232 error_str, error_str_len); 2233 2234 if (args == NULL) 2235 goto bailout; 2236 2237 for (i = 0; i < num_args; i++) { 2238 args[i].kname = NULL; 2239 args[i].kvalue = NULL; 2240 } 2241 2242 for (i = 0; i < num_args; i++) { 2243 uint8_t *tmpptr; 2244 2245 args[i].kname = ctl_copyin_alloc(args[i].name, 2246 args[i].namelen, error_str, error_str_len); 2247 if (args[i].kname == NULL) 2248 goto bailout; 2249 2250 if (args[i].kname[args[i].namelen - 1] != '\0') { 2251 snprintf(error_str, error_str_len, "Argument %d " 2252 "name is not NUL-terminated", i); 2253 goto bailout; 2254 } 2255 2256 if (args[i].flags & CTL_BEARG_RD) { 2257 tmpptr = ctl_copyin_alloc(args[i].value, 2258 args[i].vallen, error_str, error_str_len); 2259 if (tmpptr == NULL) 2260 goto bailout; 2261 if ((args[i].flags & CTL_BEARG_ASCII) 2262 && (tmpptr[args[i].vallen - 1] != '\0')) { 2263 snprintf(error_str, error_str_len, "Argument " 2264 "%d value is not NUL-terminated", i); 2265 goto bailout; 2266 } 2267 args[i].kvalue = tmpptr; 2268 } else { 2269 args[i].kvalue = malloc(args[i].vallen, 2270 M_CTL, M_WAITOK | M_ZERO); 2271 } 2272 } 2273 2274 return (args); 2275bailout: 2276 2277 ctl_free_args(num_args, args); 2278 2279 return (NULL); 2280} 2281 2282static void 2283ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2284{ 2285 int i; 2286 2287 for (i = 0; i < num_args; i++) { 2288 if (args[i].flags & CTL_BEARG_WR) 2289 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2290 } 2291} 2292 2293/* 2294 * Escape characters that are illegal or not recommended in XML. 2295 */ 2296int 2297ctl_sbuf_printf_esc(struct sbuf *sb, char *str, int size) 2298{ 2299 char *end = str + size; 2300 int retval; 2301 2302 retval = 0; 2303 2304 for (; *str && str < end; str++) { 2305 switch (*str) { 2306 case '&': 2307 retval = sbuf_printf(sb, "&"); 2308 break; 2309 case '>': 2310 retval = sbuf_printf(sb, ">"); 2311 break; 2312 case '<': 2313 retval = sbuf_printf(sb, "<"); 2314 break; 2315 default: 2316 retval = sbuf_putc(sb, *str); 2317 break; 2318 } 2319 2320 if (retval != 0) 2321 break; 2322 2323 } 2324 2325 return (retval); 2326} 2327 2328static void 2329ctl_id_sbuf(struct ctl_devid *id, struct sbuf *sb) 2330{ 2331 struct scsi_vpd_id_descriptor *desc; 2332 int i; 2333 2334 if (id == NULL || id->len < 4) 2335 return; 2336 desc = (struct scsi_vpd_id_descriptor *)id->data; 2337 switch (desc->id_type & SVPD_ID_TYPE_MASK) { 2338 case SVPD_ID_TYPE_T10: 2339 sbuf_printf(sb, "t10."); 2340 break; 2341 case SVPD_ID_TYPE_EUI64: 2342 sbuf_printf(sb, "eui."); 2343 break; 2344 case SVPD_ID_TYPE_NAA: 2345 sbuf_printf(sb, "naa."); 2346 break; 2347 case SVPD_ID_TYPE_SCSI_NAME: 2348 break; 2349 } 2350 switch (desc->proto_codeset & SVPD_ID_CODESET_MASK) { 2351 case SVPD_ID_CODESET_BINARY: 2352 for (i = 0; i < desc->length; i++) 2353 sbuf_printf(sb, "%02x", desc->identifier[i]); 2354 break; 2355 case SVPD_ID_CODESET_ASCII: 2356 sbuf_printf(sb, "%.*s", (int)desc->length, 2357 (char *)desc->identifier); 2358 break; 2359 case SVPD_ID_CODESET_UTF8: 2360 sbuf_printf(sb, "%s", (char *)desc->identifier); 2361 break; 2362 } 2363} 2364 2365static int 2366ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2367 struct thread *td) 2368{ 2369 struct ctl_softc *softc; 2370 int retval; 2371 2372 softc = control_softc; 2373 2374 retval = 0; 2375 2376 switch (cmd) { 2377 case CTL_IO: { 2378 union ctl_io *io; 2379 void *pool_tmp; 2380 2381 /* 2382 * If we haven't been "enabled", don't allow any SCSI I/O 2383 * to this FETD. 2384 */ 2385 if ((softc->ioctl_info.flags & CTL_IOCTL_FLAG_ENABLED) == 0) { 2386 retval = EPERM; 2387 break; 2388 } 2389 2390 io = ctl_alloc_io(softc->ioctl_info.port.ctl_pool_ref); 2391 2392 /* 2393 * Need to save the pool reference so it doesn't get 2394 * spammed by the user's ctl_io. 2395 */ 2396 pool_tmp = io->io_hdr.pool; 2397 memcpy(io, (void *)addr, sizeof(*io)); 2398 io->io_hdr.pool = pool_tmp; 2399 2400 /* 2401 * No status yet, so make sure the status is set properly. 2402 */ 2403 io->io_hdr.status = CTL_STATUS_NONE; 2404 2405 /* 2406 * The user sets the initiator ID, target and LUN IDs. 2407 */ 2408 io->io_hdr.nexus.targ_port = softc->ioctl_info.port.targ_port; 2409 io->io_hdr.flags |= CTL_FLAG_USER_REQ; 2410 if ((io->io_hdr.io_type == CTL_IO_SCSI) 2411 && (io->scsiio.tag_type != CTL_TAG_UNTAGGED)) 2412 io->scsiio.tag_num = softc->ioctl_info.cur_tag_num++; 2413 2414 retval = ctl_ioctl_submit_wait(io); 2415 2416 if (retval != 0) { 2417 ctl_free_io(io); 2418 break; 2419 } 2420 2421 memcpy((void *)addr, io, sizeof(*io)); 2422 2423 /* return this to our pool */ 2424 ctl_free_io(io); 2425 2426 break; 2427 } 2428 case CTL_ENABLE_PORT: 2429 case CTL_DISABLE_PORT: 2430 case CTL_SET_PORT_WWNS: { 2431 struct ctl_port *port; 2432 struct ctl_port_entry *entry; 2433 2434 entry = (struct ctl_port_entry *)addr; 2435 2436 mtx_lock(&softc->ctl_lock); 2437 STAILQ_FOREACH(port, &softc->port_list, links) { 2438 int action, done; 2439 2440 action = 0; 2441 done = 0; 2442 2443 if ((entry->port_type == CTL_PORT_NONE) 2444 && (entry->targ_port == port->targ_port)) { 2445 /* 2446 * If the user only wants to enable or 2447 * disable or set WWNs on a specific port, 2448 * do the operation and we're done. 2449 */ 2450 action = 1; 2451 done = 1; 2452 } else if (entry->port_type & port->port_type) { 2453 /* 2454 * Compare the user's type mask with the 2455 * particular frontend type to see if we 2456 * have a match. 2457 */ 2458 action = 1; 2459 done = 0; 2460 2461 /* 2462 * Make sure the user isn't trying to set 2463 * WWNs on multiple ports at the same time. 2464 */ 2465 if (cmd == CTL_SET_PORT_WWNS) { 2466 printf("%s: Can't set WWNs on " 2467 "multiple ports\n", __func__); 2468 retval = EINVAL; 2469 break; 2470 } 2471 } 2472 if (action != 0) { 2473 /* 2474 * XXX KDM we have to drop the lock here, 2475 * because the online/offline operations 2476 * can potentially block. We need to 2477 * reference count the frontends so they 2478 * can't go away, 2479 */ 2480 mtx_unlock(&softc->ctl_lock); 2481 2482 if (cmd == CTL_ENABLE_PORT) { 2483 struct ctl_lun *lun; 2484 2485 STAILQ_FOREACH(lun, &softc->lun_list, 2486 links) { 2487 port->lun_enable(port->targ_lun_arg, 2488 lun->target, 2489 lun->lun); 2490 } 2491 2492 ctl_port_online(port); 2493 } else if (cmd == CTL_DISABLE_PORT) { 2494 struct ctl_lun *lun; 2495 2496 ctl_port_offline(port); 2497 2498 STAILQ_FOREACH(lun, &softc->lun_list, 2499 links) { 2500 port->lun_disable( 2501 port->targ_lun_arg, 2502 lun->target, 2503 lun->lun); 2504 } 2505 } 2506 2507 mtx_lock(&softc->ctl_lock); 2508 2509 if (cmd == CTL_SET_PORT_WWNS) 2510 ctl_port_set_wwns(port, 2511 (entry->flags & CTL_PORT_WWNN_VALID) ? 2512 1 : 0, entry->wwnn, 2513 (entry->flags & CTL_PORT_WWPN_VALID) ? 2514 1 : 0, entry->wwpn); 2515 } 2516 if (done != 0) 2517 break; 2518 } 2519 mtx_unlock(&softc->ctl_lock); 2520 break; 2521 } 2522 case CTL_GET_PORT_LIST: { 2523 struct ctl_port *port; 2524 struct ctl_port_list *list; 2525 int i; 2526 2527 list = (struct ctl_port_list *)addr; 2528 2529 if (list->alloc_len != (list->alloc_num * 2530 sizeof(struct ctl_port_entry))) { 2531 printf("%s: CTL_GET_PORT_LIST: alloc_len %u != " 2532 "alloc_num %u * sizeof(struct ctl_port_entry) " 2533 "%zu\n", __func__, list->alloc_len, 2534 list->alloc_num, sizeof(struct ctl_port_entry)); 2535 retval = EINVAL; 2536 break; 2537 } 2538 list->fill_len = 0; 2539 list->fill_num = 0; 2540 list->dropped_num = 0; 2541 i = 0; 2542 mtx_lock(&softc->ctl_lock); 2543 STAILQ_FOREACH(port, &softc->port_list, links) { 2544 struct ctl_port_entry entry, *list_entry; 2545 2546 if (list->fill_num >= list->alloc_num) { 2547 list->dropped_num++; 2548 continue; 2549 } 2550 2551 entry.port_type = port->port_type; 2552 strlcpy(entry.port_name, port->port_name, 2553 sizeof(entry.port_name)); 2554 entry.targ_port = port->targ_port; 2555 entry.physical_port = port->physical_port; 2556 entry.virtual_port = port->virtual_port; 2557 entry.wwnn = port->wwnn; 2558 entry.wwpn = port->wwpn; 2559 if (port->status & CTL_PORT_STATUS_ONLINE) 2560 entry.online = 1; 2561 else 2562 entry.online = 0; 2563 2564 list_entry = &list->entries[i]; 2565 2566 retval = copyout(&entry, list_entry, sizeof(entry)); 2567 if (retval != 0) { 2568 printf("%s: CTL_GET_PORT_LIST: copyout " 2569 "returned %d\n", __func__, retval); 2570 break; 2571 } 2572 i++; 2573 list->fill_num++; 2574 list->fill_len += sizeof(entry); 2575 } 2576 mtx_unlock(&softc->ctl_lock); 2577 2578 /* 2579 * If this is non-zero, we had a copyout fault, so there's 2580 * probably no point in attempting to set the status inside 2581 * the structure. 2582 */ 2583 if (retval != 0) 2584 break; 2585 2586 if (list->dropped_num > 0) 2587 list->status = CTL_PORT_LIST_NEED_MORE_SPACE; 2588 else 2589 list->status = CTL_PORT_LIST_OK; 2590 break; 2591 } 2592 case CTL_DUMP_OOA: { 2593 struct ctl_lun *lun; 2594 union ctl_io *io; 2595 char printbuf[128]; 2596 struct sbuf sb; 2597 2598 mtx_lock(&softc->ctl_lock); 2599 printf("Dumping OOA queues:\n"); 2600 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2601 mtx_lock(&lun->lun_lock); 2602 for (io = (union ctl_io *)TAILQ_FIRST( 2603 &lun->ooa_queue); io != NULL; 2604 io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2605 ooa_links)) { 2606 sbuf_new(&sb, printbuf, sizeof(printbuf), 2607 SBUF_FIXEDLEN); 2608 sbuf_printf(&sb, "LUN %jd tag 0x%04x%s%s%s%s: ", 2609 (intmax_t)lun->lun, 2610 io->scsiio.tag_num, 2611 (io->io_hdr.flags & 2612 CTL_FLAG_BLOCKED) ? "" : " BLOCKED", 2613 (io->io_hdr.flags & 2614 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 2615 (io->io_hdr.flags & 2616 CTL_FLAG_ABORT) ? " ABORT" : "", 2617 (io->io_hdr.flags & 2618 CTL_FLAG_IS_WAS_ON_RTR) ? " RTR" : ""); 2619 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 2620 sbuf_finish(&sb); 2621 printf("%s\n", sbuf_data(&sb)); 2622 } 2623 mtx_unlock(&lun->lun_lock); 2624 } 2625 printf("OOA queues dump done\n"); 2626 mtx_unlock(&softc->ctl_lock); 2627 break; 2628 } 2629 case CTL_GET_OOA: { 2630 struct ctl_lun *lun; 2631 struct ctl_ooa *ooa_hdr; 2632 struct ctl_ooa_entry *entries; 2633 uint32_t cur_fill_num; 2634 2635 ooa_hdr = (struct ctl_ooa *)addr; 2636 2637 if ((ooa_hdr->alloc_len == 0) 2638 || (ooa_hdr->alloc_num == 0)) { 2639 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2640 "must be non-zero\n", __func__, 2641 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2642 retval = EINVAL; 2643 break; 2644 } 2645 2646 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2647 sizeof(struct ctl_ooa_entry))) { 2648 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2649 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2650 __func__, ooa_hdr->alloc_len, 2651 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2652 retval = EINVAL; 2653 break; 2654 } 2655 2656 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2657 if (entries == NULL) { 2658 printf("%s: could not allocate %d bytes for OOA " 2659 "dump\n", __func__, ooa_hdr->alloc_len); 2660 retval = ENOMEM; 2661 break; 2662 } 2663 2664 mtx_lock(&softc->ctl_lock); 2665 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2666 && ((ooa_hdr->lun_num >= CTL_MAX_LUNS) 2667 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2668 mtx_unlock(&softc->ctl_lock); 2669 free(entries, M_CTL); 2670 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2671 __func__, (uintmax_t)ooa_hdr->lun_num); 2672 retval = EINVAL; 2673 break; 2674 } 2675 2676 cur_fill_num = 0; 2677 2678 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2679 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2680 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2681 ooa_hdr, entries); 2682 if (retval != 0) 2683 break; 2684 } 2685 if (retval != 0) { 2686 mtx_unlock(&softc->ctl_lock); 2687 free(entries, M_CTL); 2688 break; 2689 } 2690 } else { 2691 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2692 2693 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num,ooa_hdr, 2694 entries); 2695 } 2696 mtx_unlock(&softc->ctl_lock); 2697 2698 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2699 ooa_hdr->fill_len = ooa_hdr->fill_num * 2700 sizeof(struct ctl_ooa_entry); 2701 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2702 if (retval != 0) { 2703 printf("%s: error copying out %d bytes for OOA dump\n", 2704 __func__, ooa_hdr->fill_len); 2705 } 2706 2707 getbintime(&ooa_hdr->cur_bt); 2708 2709 if (cur_fill_num > ooa_hdr->alloc_num) { 2710 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2711 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2712 } else { 2713 ooa_hdr->dropped_num = 0; 2714 ooa_hdr->status = CTL_OOA_OK; 2715 } 2716 2717 free(entries, M_CTL); 2718 break; 2719 } 2720 case CTL_CHECK_OOA: { 2721 union ctl_io *io; 2722 struct ctl_lun *lun; 2723 struct ctl_ooa_info *ooa_info; 2724 2725 2726 ooa_info = (struct ctl_ooa_info *)addr; 2727 2728 if (ooa_info->lun_id >= CTL_MAX_LUNS) { 2729 ooa_info->status = CTL_OOA_INVALID_LUN; 2730 break; 2731 } 2732 mtx_lock(&softc->ctl_lock); 2733 lun = softc->ctl_luns[ooa_info->lun_id]; 2734 if (lun == NULL) { 2735 mtx_unlock(&softc->ctl_lock); 2736 ooa_info->status = CTL_OOA_INVALID_LUN; 2737 break; 2738 } 2739 mtx_lock(&lun->lun_lock); 2740 mtx_unlock(&softc->ctl_lock); 2741 ooa_info->num_entries = 0; 2742 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 2743 io != NULL; io = (union ctl_io *)TAILQ_NEXT( 2744 &io->io_hdr, ooa_links)) { 2745 ooa_info->num_entries++; 2746 } 2747 mtx_unlock(&lun->lun_lock); 2748 2749 ooa_info->status = CTL_OOA_SUCCESS; 2750 2751 break; 2752 } 2753 case CTL_HARD_START: 2754 case CTL_HARD_STOP: { 2755 struct ctl_fe_ioctl_startstop_info ss_info; 2756 struct cfi_metatask *metatask; 2757 struct mtx hs_mtx; 2758 2759 mtx_init(&hs_mtx, "HS Mutex", NULL, MTX_DEF); 2760 2761 cv_init(&ss_info.sem, "hard start/stop cv" ); 2762 2763 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2764 if (metatask == NULL) { 2765 retval = ENOMEM; 2766 mtx_destroy(&hs_mtx); 2767 break; 2768 } 2769 2770 if (cmd == CTL_HARD_START) 2771 metatask->tasktype = CFI_TASK_STARTUP; 2772 else 2773 metatask->tasktype = CFI_TASK_SHUTDOWN; 2774 2775 metatask->callback = ctl_ioctl_hard_startstop_callback; 2776 metatask->callback_arg = &ss_info; 2777 2778 cfi_action(metatask); 2779 2780 /* Wait for the callback */ 2781 mtx_lock(&hs_mtx); 2782 cv_wait_sig(&ss_info.sem, &hs_mtx); 2783 mtx_unlock(&hs_mtx); 2784 2785 /* 2786 * All information has been copied from the metatask by the 2787 * time cv_broadcast() is called, so we free the metatask here. 2788 */ 2789 cfi_free_metatask(metatask); 2790 2791 memcpy((void *)addr, &ss_info.hs_info, sizeof(ss_info.hs_info)); 2792 2793 mtx_destroy(&hs_mtx); 2794 break; 2795 } 2796 case CTL_BBRREAD: { 2797 struct ctl_bbrread_info *bbr_info; 2798 struct ctl_fe_ioctl_bbrread_info fe_bbr_info; 2799 struct mtx bbr_mtx; 2800 struct cfi_metatask *metatask; 2801 2802 bbr_info = (struct ctl_bbrread_info *)addr; 2803 2804 bzero(&fe_bbr_info, sizeof(fe_bbr_info)); 2805 2806 bzero(&bbr_mtx, sizeof(bbr_mtx)); 2807 mtx_init(&bbr_mtx, "BBR Mutex", NULL, MTX_DEF); 2808 2809 fe_bbr_info.bbr_info = bbr_info; 2810 fe_bbr_info.lock = &bbr_mtx; 2811 2812 cv_init(&fe_bbr_info.sem, "BBR read cv"); 2813 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2814 2815 if (metatask == NULL) { 2816 mtx_destroy(&bbr_mtx); 2817 cv_destroy(&fe_bbr_info.sem); 2818 retval = ENOMEM; 2819 break; 2820 } 2821 metatask->tasktype = CFI_TASK_BBRREAD; 2822 metatask->callback = ctl_ioctl_bbrread_callback; 2823 metatask->callback_arg = &fe_bbr_info; 2824 metatask->taskinfo.bbrread.lun_num = bbr_info->lun_num; 2825 metatask->taskinfo.bbrread.lba = bbr_info->lba; 2826 metatask->taskinfo.bbrread.len = bbr_info->len; 2827 2828 cfi_action(metatask); 2829 2830 mtx_lock(&bbr_mtx); 2831 while (fe_bbr_info.wakeup_done == 0) 2832 cv_wait_sig(&fe_bbr_info.sem, &bbr_mtx); 2833 mtx_unlock(&bbr_mtx); 2834 2835 bbr_info->status = metatask->status; 2836 bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2837 bbr_info->scsi_status = metatask->taskinfo.bbrread.scsi_status; 2838 memcpy(&bbr_info->sense_data, 2839 &metatask->taskinfo.bbrread.sense_data, 2840 ctl_min(sizeof(bbr_info->sense_data), 2841 sizeof(metatask->taskinfo.bbrread.sense_data))); 2842 2843 cfi_free_metatask(metatask); 2844 2845 mtx_destroy(&bbr_mtx); 2846 cv_destroy(&fe_bbr_info.sem); 2847 2848 break; 2849 } 2850 case CTL_DELAY_IO: { 2851 struct ctl_io_delay_info *delay_info; 2852#ifdef CTL_IO_DELAY 2853 struct ctl_lun *lun; 2854#endif /* CTL_IO_DELAY */ 2855 2856 delay_info = (struct ctl_io_delay_info *)addr; 2857 2858#ifdef CTL_IO_DELAY 2859 mtx_lock(&softc->ctl_lock); 2860 2861 if ((delay_info->lun_id >= CTL_MAX_LUNS) 2862 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2863 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2864 } else { 2865 lun = softc->ctl_luns[delay_info->lun_id]; 2866 mtx_lock(&lun->lun_lock); 2867 2868 delay_info->status = CTL_DELAY_STATUS_OK; 2869 2870 switch (delay_info->delay_type) { 2871 case CTL_DELAY_TYPE_CONT: 2872 break; 2873 case CTL_DELAY_TYPE_ONESHOT: 2874 break; 2875 default: 2876 delay_info->status = 2877 CTL_DELAY_STATUS_INVALID_TYPE; 2878 break; 2879 } 2880 2881 switch (delay_info->delay_loc) { 2882 case CTL_DELAY_LOC_DATAMOVE: 2883 lun->delay_info.datamove_type = 2884 delay_info->delay_type; 2885 lun->delay_info.datamove_delay = 2886 delay_info->delay_secs; 2887 break; 2888 case CTL_DELAY_LOC_DONE: 2889 lun->delay_info.done_type = 2890 delay_info->delay_type; 2891 lun->delay_info.done_delay = 2892 delay_info->delay_secs; 2893 break; 2894 default: 2895 delay_info->status = 2896 CTL_DELAY_STATUS_INVALID_LOC; 2897 break; 2898 } 2899 mtx_unlock(&lun->lun_lock); 2900 } 2901 2902 mtx_unlock(&softc->ctl_lock); 2903#else 2904 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2905#endif /* CTL_IO_DELAY */ 2906 break; 2907 } 2908 case CTL_REALSYNC_SET: { 2909 int *syncstate; 2910 2911 syncstate = (int *)addr; 2912 2913 mtx_lock(&softc->ctl_lock); 2914 switch (*syncstate) { 2915 case 0: 2916 softc->flags &= ~CTL_FLAG_REAL_SYNC; 2917 break; 2918 case 1: 2919 softc->flags |= CTL_FLAG_REAL_SYNC; 2920 break; 2921 default: 2922 retval = EINVAL; 2923 break; 2924 } 2925 mtx_unlock(&softc->ctl_lock); 2926 break; 2927 } 2928 case CTL_REALSYNC_GET: { 2929 int *syncstate; 2930 2931 syncstate = (int*)addr; 2932 2933 mtx_lock(&softc->ctl_lock); 2934 if (softc->flags & CTL_FLAG_REAL_SYNC) 2935 *syncstate = 1; 2936 else 2937 *syncstate = 0; 2938 mtx_unlock(&softc->ctl_lock); 2939 2940 break; 2941 } 2942 case CTL_SETSYNC: 2943 case CTL_GETSYNC: { 2944 struct ctl_sync_info *sync_info; 2945 struct ctl_lun *lun; 2946 2947 sync_info = (struct ctl_sync_info *)addr; 2948 2949 mtx_lock(&softc->ctl_lock); 2950 lun = softc->ctl_luns[sync_info->lun_id]; 2951 if (lun == NULL) { 2952 mtx_unlock(&softc->ctl_lock); 2953 sync_info->status = CTL_GS_SYNC_NO_LUN; 2954 } 2955 /* 2956 * Get or set the sync interval. We're not bounds checking 2957 * in the set case, hopefully the user won't do something 2958 * silly. 2959 */ 2960 mtx_lock(&lun->lun_lock); 2961 mtx_unlock(&softc->ctl_lock); 2962 if (cmd == CTL_GETSYNC) 2963 sync_info->sync_interval = lun->sync_interval; 2964 else 2965 lun->sync_interval = sync_info->sync_interval; 2966 mtx_unlock(&lun->lun_lock); 2967 2968 sync_info->status = CTL_GS_SYNC_OK; 2969 2970 break; 2971 } 2972 case CTL_GETSTATS: { 2973 struct ctl_stats *stats; 2974 struct ctl_lun *lun; 2975 int i; 2976 2977 stats = (struct ctl_stats *)addr; 2978 2979 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2980 stats->alloc_len) { 2981 stats->status = CTL_SS_NEED_MORE_SPACE; 2982 stats->num_luns = softc->num_luns; 2983 break; 2984 } 2985 /* 2986 * XXX KDM no locking here. If the LUN list changes, 2987 * things can blow up. 2988 */ 2989 for (i = 0, lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; 2990 i++, lun = STAILQ_NEXT(lun, links)) { 2991 retval = copyout(&lun->stats, &stats->lun_stats[i], 2992 sizeof(lun->stats)); 2993 if (retval != 0) 2994 break; 2995 } 2996 stats->num_luns = softc->num_luns; 2997 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2998 softc->num_luns; 2999 stats->status = CTL_SS_OK; 3000#ifdef CTL_TIME_IO 3001 stats->flags = CTL_STATS_FLAG_TIME_VALID; 3002#else 3003 stats->flags = CTL_STATS_FLAG_NONE; 3004#endif 3005 getnanouptime(&stats->timestamp); 3006 break; 3007 } 3008 case CTL_ERROR_INJECT: { 3009 struct ctl_error_desc *err_desc, *new_err_desc; 3010 struct ctl_lun *lun; 3011 3012 err_desc = (struct ctl_error_desc *)addr; 3013 3014 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 3015 M_WAITOK | M_ZERO); 3016 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 3017 3018 mtx_lock(&softc->ctl_lock); 3019 lun = softc->ctl_luns[err_desc->lun_id]; 3020 if (lun == NULL) { 3021 mtx_unlock(&softc->ctl_lock); 3022 free(new_err_desc, M_CTL); 3023 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 3024 __func__, (uintmax_t)err_desc->lun_id); 3025 retval = EINVAL; 3026 break; 3027 } 3028 mtx_lock(&lun->lun_lock); 3029 mtx_unlock(&softc->ctl_lock); 3030 3031 /* 3032 * We could do some checking here to verify the validity 3033 * of the request, but given the complexity of error 3034 * injection requests, the checking logic would be fairly 3035 * complex. 3036 * 3037 * For now, if the request is invalid, it just won't get 3038 * executed and might get deleted. 3039 */ 3040 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 3041 3042 /* 3043 * XXX KDM check to make sure the serial number is unique, 3044 * in case we somehow manage to wrap. That shouldn't 3045 * happen for a very long time, but it's the right thing to 3046 * do. 3047 */ 3048 new_err_desc->serial = lun->error_serial; 3049 err_desc->serial = lun->error_serial; 3050 lun->error_serial++; 3051 3052 mtx_unlock(&lun->lun_lock); 3053 break; 3054 } 3055 case CTL_ERROR_INJECT_DELETE: { 3056 struct ctl_error_desc *delete_desc, *desc, *desc2; 3057 struct ctl_lun *lun; 3058 int delete_done; 3059 3060 delete_desc = (struct ctl_error_desc *)addr; 3061 delete_done = 0; 3062 3063 mtx_lock(&softc->ctl_lock); 3064 lun = softc->ctl_luns[delete_desc->lun_id]; 3065 if (lun == NULL) { 3066 mtx_unlock(&softc->ctl_lock); 3067 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 3068 __func__, (uintmax_t)delete_desc->lun_id); 3069 retval = EINVAL; 3070 break; 3071 } 3072 mtx_lock(&lun->lun_lock); 3073 mtx_unlock(&softc->ctl_lock); 3074 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 3075 if (desc->serial != delete_desc->serial) 3076 continue; 3077 3078 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 3079 links); 3080 free(desc, M_CTL); 3081 delete_done = 1; 3082 } 3083 mtx_unlock(&lun->lun_lock); 3084 if (delete_done == 0) { 3085 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 3086 "error serial %ju on LUN %u\n", __func__, 3087 delete_desc->serial, delete_desc->lun_id); 3088 retval = EINVAL; 3089 break; 3090 } 3091 break; 3092 } 3093 case CTL_DUMP_STRUCTS: { 3094 int i, j, k; 3095 struct ctl_port *port; 3096 struct ctl_frontend *fe; 3097 3098 mtx_lock(&softc->ctl_lock); 3099 printf("CTL Persistent Reservation information start:\n"); 3100 for (i = 0; i < CTL_MAX_LUNS; i++) { 3101 struct ctl_lun *lun; 3102 3103 lun = softc->ctl_luns[i]; 3104 3105 if ((lun == NULL) 3106 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 3107 continue; 3108 3109 for (j = 0; j < (CTL_MAX_PORTS * 2); j++) { 3110 if (lun->pr_keys[j] == NULL) 3111 continue; 3112 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 3113 if (lun->pr_keys[j][k] == 0) 3114 continue; 3115 printf(" LUN %d port %d iid %d key " 3116 "%#jx\n", i, j, k, 3117 (uintmax_t)lun->pr_keys[j][k]); 3118 } 3119 } 3120 } 3121 printf("CTL Persistent Reservation information end\n"); 3122 printf("CTL Ports:\n"); 3123 STAILQ_FOREACH(port, &softc->port_list, links) { 3124 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 3125 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 3126 port->frontend->name, port->port_type, 3127 port->physical_port, port->virtual_port, 3128 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 3129 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3130 if (port->wwpn_iid[j].in_use == 0 && 3131 port->wwpn_iid[j].wwpn == 0 && 3132 port->wwpn_iid[j].name == NULL) 3133 continue; 3134 3135 printf(" iid %u use %d WWPN %#jx '%s'\n", 3136 j, port->wwpn_iid[j].in_use, 3137 (uintmax_t)port->wwpn_iid[j].wwpn, 3138 port->wwpn_iid[j].name); 3139 } 3140 } 3141 printf("CTL Port information end\n"); 3142 mtx_unlock(&softc->ctl_lock); 3143 /* 3144 * XXX KDM calling this without a lock. We'd likely want 3145 * to drop the lock before calling the frontend's dump 3146 * routine anyway. 3147 */ 3148 printf("CTL Frontends:\n"); 3149 STAILQ_FOREACH(fe, &softc->fe_list, links) { 3150 printf(" Frontend '%s'\n", fe->name); 3151 if (fe->fe_dump != NULL) 3152 fe->fe_dump(); 3153 } 3154 printf("CTL Frontend information end\n"); 3155 break; 3156 } 3157 case CTL_LUN_REQ: { 3158 struct ctl_lun_req *lun_req; 3159 struct ctl_backend_driver *backend; 3160 3161 lun_req = (struct ctl_lun_req *)addr; 3162 3163 backend = ctl_backend_find(lun_req->backend); 3164 if (backend == NULL) { 3165 lun_req->status = CTL_LUN_ERROR; 3166 snprintf(lun_req->error_str, 3167 sizeof(lun_req->error_str), 3168 "Backend \"%s\" not found.", 3169 lun_req->backend); 3170 break; 3171 } 3172 if (lun_req->num_be_args > 0) { 3173 lun_req->kern_be_args = ctl_copyin_args( 3174 lun_req->num_be_args, 3175 lun_req->be_args, 3176 lun_req->error_str, 3177 sizeof(lun_req->error_str)); 3178 if (lun_req->kern_be_args == NULL) { 3179 lun_req->status = CTL_LUN_ERROR; 3180 break; 3181 } 3182 } 3183 3184 retval = backend->ioctl(dev, cmd, addr, flag, td); 3185 3186 if (lun_req->num_be_args > 0) { 3187 ctl_copyout_args(lun_req->num_be_args, 3188 lun_req->kern_be_args); 3189 ctl_free_args(lun_req->num_be_args, 3190 lun_req->kern_be_args); 3191 } 3192 break; 3193 } 3194 case CTL_LUN_LIST: { 3195 struct sbuf *sb; 3196 struct ctl_lun *lun; 3197 struct ctl_lun_list *list; 3198 struct ctl_option *opt; 3199 3200 list = (struct ctl_lun_list *)addr; 3201 3202 /* 3203 * Allocate a fixed length sbuf here, based on the length 3204 * of the user's buffer. We could allocate an auto-extending 3205 * buffer, and then tell the user how much larger our 3206 * amount of data is than his buffer, but that presents 3207 * some problems: 3208 * 3209 * 1. The sbuf(9) routines use a blocking malloc, and so 3210 * we can't hold a lock while calling them with an 3211 * auto-extending buffer. 3212 * 3213 * 2. There is not currently a LUN reference counting 3214 * mechanism, outside of outstanding transactions on 3215 * the LUN's OOA queue. So a LUN could go away on us 3216 * while we're getting the LUN number, backend-specific 3217 * information, etc. Thus, given the way things 3218 * currently work, we need to hold the CTL lock while 3219 * grabbing LUN information. 3220 * 3221 * So, from the user's standpoint, the best thing to do is 3222 * allocate what he thinks is a reasonable buffer length, 3223 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3224 * double the buffer length and try again. (And repeat 3225 * that until he succeeds.) 3226 */ 3227 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3228 if (sb == NULL) { 3229 list->status = CTL_LUN_LIST_ERROR; 3230 snprintf(list->error_str, sizeof(list->error_str), 3231 "Unable to allocate %d bytes for LUN list", 3232 list->alloc_len); 3233 break; 3234 } 3235 3236 sbuf_printf(sb, "<ctllunlist>\n"); 3237 3238 mtx_lock(&softc->ctl_lock); 3239 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3240 mtx_lock(&lun->lun_lock); 3241 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3242 (uintmax_t)lun->lun); 3243 3244 /* 3245 * Bail out as soon as we see that we've overfilled 3246 * the buffer. 3247 */ 3248 if (retval != 0) 3249 break; 3250 3251 retval = sbuf_printf(sb, "\t<backend_type>%s" 3252 "</backend_type>\n", 3253 (lun->backend == NULL) ? "none" : 3254 lun->backend->name); 3255 3256 if (retval != 0) 3257 break; 3258 3259 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3260 lun->be_lun->lun_type); 3261 3262 if (retval != 0) 3263 break; 3264 3265 if (lun->backend == NULL) { 3266 retval = sbuf_printf(sb, "</lun>\n"); 3267 if (retval != 0) 3268 break; 3269 continue; 3270 } 3271 3272 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3273 (lun->be_lun->maxlba > 0) ? 3274 lun->be_lun->maxlba + 1 : 0); 3275 3276 if (retval != 0) 3277 break; 3278 3279 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3280 lun->be_lun->blocksize); 3281 3282 if (retval != 0) 3283 break; 3284 3285 retval = sbuf_printf(sb, "\t<serial_number>"); 3286 3287 if (retval != 0) 3288 break; 3289 3290 retval = ctl_sbuf_printf_esc(sb, 3291 lun->be_lun->serial_num, 3292 sizeof(lun->be_lun->serial_num)); 3293 3294 if (retval != 0) 3295 break; 3296 3297 retval = sbuf_printf(sb, "</serial_number>\n"); 3298 3299 if (retval != 0) 3300 break; 3301 3302 retval = sbuf_printf(sb, "\t<device_id>"); 3303 3304 if (retval != 0) 3305 break; 3306 3307 retval = ctl_sbuf_printf_esc(sb, 3308 lun->be_lun->device_id, 3309 sizeof(lun->be_lun->device_id)); 3310 3311 if (retval != 0) 3312 break; 3313 3314 retval = sbuf_printf(sb, "</device_id>\n"); 3315 3316 if (retval != 0) 3317 break; 3318 3319 if (lun->backend->lun_info != NULL) { 3320 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3321 if (retval != 0) 3322 break; 3323 } 3324 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3325 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3326 opt->name, opt->value, opt->name); 3327 if (retval != 0) 3328 break; 3329 } 3330 3331 retval = sbuf_printf(sb, "</lun>\n"); 3332 3333 if (retval != 0) 3334 break; 3335 mtx_unlock(&lun->lun_lock); 3336 } 3337 if (lun != NULL) 3338 mtx_unlock(&lun->lun_lock); 3339 mtx_unlock(&softc->ctl_lock); 3340 3341 if ((retval != 0) 3342 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3343 retval = 0; 3344 sbuf_delete(sb); 3345 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3346 snprintf(list->error_str, sizeof(list->error_str), 3347 "Out of space, %d bytes is too small", 3348 list->alloc_len); 3349 break; 3350 } 3351 3352 sbuf_finish(sb); 3353 3354 retval = copyout(sbuf_data(sb), list->lun_xml, 3355 sbuf_len(sb) + 1); 3356 3357 list->fill_len = sbuf_len(sb) + 1; 3358 list->status = CTL_LUN_LIST_OK; 3359 sbuf_delete(sb); 3360 break; 3361 } 3362 case CTL_ISCSI: { 3363 struct ctl_iscsi *ci; 3364 struct ctl_frontend *fe; 3365 3366 ci = (struct ctl_iscsi *)addr; 3367 3368 fe = ctl_frontend_find("iscsi"); 3369 if (fe == NULL) { 3370 ci->status = CTL_ISCSI_ERROR; 3371 snprintf(ci->error_str, sizeof(ci->error_str), 3372 "Frontend \"iscsi\" not found."); 3373 break; 3374 } 3375 3376 retval = fe->ioctl(dev, cmd, addr, flag, td); 3377 break; 3378 } 3379 case CTL_PORT_REQ: { 3380 struct ctl_req *req; 3381 struct ctl_frontend *fe; 3382 3383 req = (struct ctl_req *)addr; 3384 3385 fe = ctl_frontend_find(req->driver); 3386 if (fe == NULL) { 3387 req->status = CTL_LUN_ERROR; 3388 snprintf(req->error_str, sizeof(req->error_str), 3389 "Frontend \"%s\" not found.", req->driver); 3390 break; 3391 } 3392 if (req->num_args > 0) { 3393 req->kern_args = ctl_copyin_args(req->num_args, 3394 req->args, req->error_str, sizeof(req->error_str)); 3395 if (req->kern_args == NULL) { 3396 req->status = CTL_LUN_ERROR; 3397 break; 3398 } 3399 } 3400 3401 retval = fe->ioctl(dev, cmd, addr, flag, td); 3402 3403 if (req->num_args > 0) { 3404 ctl_copyout_args(req->num_args, req->kern_args); 3405 ctl_free_args(req->num_args, req->kern_args); 3406 } 3407 break; 3408 } 3409 case CTL_PORT_LIST: { 3410 struct sbuf *sb; 3411 struct ctl_port *port; 3412 struct ctl_lun_list *list; 3413 struct ctl_option *opt; 3414 int j; 3415 3416 list = (struct ctl_lun_list *)addr; 3417 3418 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3419 if (sb == NULL) { 3420 list->status = CTL_LUN_LIST_ERROR; 3421 snprintf(list->error_str, sizeof(list->error_str), 3422 "Unable to allocate %d bytes for LUN list", 3423 list->alloc_len); 3424 break; 3425 } 3426 3427 sbuf_printf(sb, "<ctlportlist>\n"); 3428 3429 mtx_lock(&softc->ctl_lock); 3430 STAILQ_FOREACH(port, &softc->port_list, links) { 3431 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3432 (uintmax_t)port->targ_port); 3433 3434 /* 3435 * Bail out as soon as we see that we've overfilled 3436 * the buffer. 3437 */ 3438 if (retval != 0) 3439 break; 3440 3441 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3442 "</frontend_type>\n", port->frontend->name); 3443 if (retval != 0) 3444 break; 3445 3446 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3447 port->port_type); 3448 if (retval != 0) 3449 break; 3450 3451 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3452 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3453 if (retval != 0) 3454 break; 3455 3456 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3457 port->port_name); 3458 if (retval != 0) 3459 break; 3460 3461 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3462 port->physical_port); 3463 if (retval != 0) 3464 break; 3465 3466 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3467 port->virtual_port); 3468 if (retval != 0) 3469 break; 3470 3471 if (port->target_devid != NULL) { 3472 sbuf_printf(sb, "\t<target>"); 3473 ctl_id_sbuf(port->target_devid, sb); 3474 sbuf_printf(sb, "</target>\n"); 3475 } 3476 3477 if (port->port_devid != NULL) { 3478 sbuf_printf(sb, "\t<port>"); 3479 ctl_id_sbuf(port->port_devid, sb); 3480 sbuf_printf(sb, "</port>\n"); 3481 } 3482 3483 if (port->port_info != NULL) { 3484 retval = port->port_info(port->onoff_arg, sb); 3485 if (retval != 0) 3486 break; 3487 } 3488 STAILQ_FOREACH(opt, &port->options, links) { 3489 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3490 opt->name, opt->value, opt->name); 3491 if (retval != 0) 3492 break; 3493 } 3494 3495 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3496 if (port->wwpn_iid[j].in_use == 0 || 3497 (port->wwpn_iid[j].wwpn == 0 && 3498 port->wwpn_iid[j].name == NULL)) 3499 continue; 3500 3501 if (port->wwpn_iid[j].name != NULL) 3502 retval = sbuf_printf(sb, 3503 "\t<initiator id=\"%u\">%s</initiator>\n", 3504 j, port->wwpn_iid[j].name); 3505 else 3506 retval = sbuf_printf(sb, 3507 "\t<initiator id=\"%u\">naa.%08jx</initiator>\n", 3508 j, port->wwpn_iid[j].wwpn); 3509 if (retval != 0) 3510 break; 3511 } 3512 if (retval != 0) 3513 break; 3514 3515 retval = sbuf_printf(sb, "</targ_port>\n"); 3516 if (retval != 0) 3517 break; 3518 } 3519 mtx_unlock(&softc->ctl_lock); 3520 3521 if ((retval != 0) 3522 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3523 retval = 0; 3524 sbuf_delete(sb); 3525 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3526 snprintf(list->error_str, sizeof(list->error_str), 3527 "Out of space, %d bytes is too small", 3528 list->alloc_len); 3529 break; 3530 } 3531 3532 sbuf_finish(sb); 3533 3534 retval = copyout(sbuf_data(sb), list->lun_xml, 3535 sbuf_len(sb) + 1); 3536 3537 list->fill_len = sbuf_len(sb) + 1; 3538 list->status = CTL_LUN_LIST_OK; 3539 sbuf_delete(sb); 3540 break; 3541 } 3542 default: { 3543 /* XXX KDM should we fix this? */ 3544#if 0 3545 struct ctl_backend_driver *backend; 3546 unsigned int type; 3547 int found; 3548 3549 found = 0; 3550 3551 /* 3552 * We encode the backend type as the ioctl type for backend 3553 * ioctls. So parse it out here, and then search for a 3554 * backend of this type. 3555 */ 3556 type = _IOC_TYPE(cmd); 3557 3558 STAILQ_FOREACH(backend, &softc->be_list, links) { 3559 if (backend->type == type) { 3560 found = 1; 3561 break; 3562 } 3563 } 3564 if (found == 0) { 3565 printf("ctl: unknown ioctl command %#lx or backend " 3566 "%d\n", cmd, type); 3567 retval = EINVAL; 3568 break; 3569 } 3570 retval = backend->ioctl(dev, cmd, addr, flag, td); 3571#endif 3572 retval = ENOTTY; 3573 break; 3574 } 3575 } 3576 return (retval); 3577} 3578 3579uint32_t 3580ctl_get_initindex(struct ctl_nexus *nexus) 3581{ 3582 if (nexus->targ_port < CTL_MAX_PORTS) 3583 return (nexus->initid.id + 3584 (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3585 else 3586 return (nexus->initid.id + 3587 ((nexus->targ_port - CTL_MAX_PORTS) * 3588 CTL_MAX_INIT_PER_PORT)); 3589} 3590 3591uint32_t 3592ctl_get_resindex(struct ctl_nexus *nexus) 3593{ 3594 return (nexus->initid.id + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3595} 3596 3597uint32_t 3598ctl_port_idx(int port_num) 3599{ 3600 if (port_num < CTL_MAX_PORTS) 3601 return(port_num); 3602 else 3603 return(port_num - CTL_MAX_PORTS); 3604} 3605 3606static uint32_t 3607ctl_map_lun(int port_num, uint32_t lun_id) 3608{ 3609 struct ctl_port *port; 3610 3611 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3612 if (port == NULL) 3613 return (UINT32_MAX); 3614 if (port->lun_map == NULL) 3615 return (lun_id); 3616 return (port->lun_map(port->targ_lun_arg, lun_id)); 3617} 3618 3619static uint32_t 3620ctl_map_lun_back(int port_num, uint32_t lun_id) 3621{ 3622 struct ctl_port *port; 3623 uint32_t i; 3624 3625 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3626 if (port->lun_map == NULL) 3627 return (lun_id); 3628 for (i = 0; i < CTL_MAX_LUNS; i++) { 3629 if (port->lun_map(port->targ_lun_arg, i) == lun_id) 3630 return (i); 3631 } 3632 return (UINT32_MAX); 3633} 3634 3635/* 3636 * Note: This only works for bitmask sizes that are at least 32 bits, and 3637 * that are a power of 2. 3638 */ 3639int 3640ctl_ffz(uint32_t *mask, uint32_t size) 3641{ 3642 uint32_t num_chunks, num_pieces; 3643 int i, j; 3644 3645 num_chunks = (size >> 5); 3646 if (num_chunks == 0) 3647 num_chunks++; 3648 num_pieces = ctl_min((sizeof(uint32_t) * 8), size); 3649 3650 for (i = 0; i < num_chunks; i++) { 3651 for (j = 0; j < num_pieces; j++) { 3652 if ((mask[i] & (1 << j)) == 0) 3653 return ((i << 5) + j); 3654 } 3655 } 3656 3657 return (-1); 3658} 3659 3660int 3661ctl_set_mask(uint32_t *mask, uint32_t bit) 3662{ 3663 uint32_t chunk, piece; 3664 3665 chunk = bit >> 5; 3666 piece = bit % (sizeof(uint32_t) * 8); 3667 3668 if ((mask[chunk] & (1 << piece)) != 0) 3669 return (-1); 3670 else 3671 mask[chunk] |= (1 << piece); 3672 3673 return (0); 3674} 3675 3676int 3677ctl_clear_mask(uint32_t *mask, uint32_t bit) 3678{ 3679 uint32_t chunk, piece; 3680 3681 chunk = bit >> 5; 3682 piece = bit % (sizeof(uint32_t) * 8); 3683 3684 if ((mask[chunk] & (1 << piece)) == 0) 3685 return (-1); 3686 else 3687 mask[chunk] &= ~(1 << piece); 3688 3689 return (0); 3690} 3691 3692int 3693ctl_is_set(uint32_t *mask, uint32_t bit) 3694{ 3695 uint32_t chunk, piece; 3696 3697 chunk = bit >> 5; 3698 piece = bit % (sizeof(uint32_t) * 8); 3699 3700 if ((mask[chunk] & (1 << piece)) == 0) 3701 return (0); 3702 else 3703 return (1); 3704} 3705 3706static uint64_t 3707ctl_get_prkey(struct ctl_lun *lun, uint32_t residx) 3708{ 3709 uint64_t *t; 3710 3711 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3712 if (t == NULL) 3713 return (0); 3714 return (t[residx % CTL_MAX_INIT_PER_PORT]); 3715} 3716 3717static void 3718ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx) 3719{ 3720 uint64_t *t; 3721 3722 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3723 if (t == NULL) 3724 return; 3725 t[residx % CTL_MAX_INIT_PER_PORT] = 0; 3726} 3727 3728static void 3729ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx) 3730{ 3731 uint64_t *p; 3732 u_int i; 3733 3734 i = residx/CTL_MAX_INIT_PER_PORT; 3735 if (lun->pr_keys[i] != NULL) 3736 return; 3737 mtx_unlock(&lun->lun_lock); 3738 p = malloc(sizeof(uint64_t) * CTL_MAX_INIT_PER_PORT, M_CTL, 3739 M_WAITOK | M_ZERO); 3740 mtx_lock(&lun->lun_lock); 3741 if (lun->pr_keys[i] == NULL) 3742 lun->pr_keys[i] = p; 3743 else 3744 free(p, M_CTL); 3745} 3746 3747static void 3748ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key) 3749{ 3750 uint64_t *t; 3751 3752 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3753 KASSERT(t != NULL, ("prkey %d is not allocated", residx)); 3754 t[residx % CTL_MAX_INIT_PER_PORT] = key; 3755} 3756 3757/* 3758 * ctl_softc, pool_name, total_ctl_io are passed in. 3759 * npool is passed out. 3760 */ 3761int 3762ctl_pool_create(struct ctl_softc *ctl_softc, const char *pool_name, 3763 uint32_t total_ctl_io, void **npool) 3764{ 3765#ifdef IO_POOLS 3766 struct ctl_io_pool *pool; 3767 3768 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3769 M_NOWAIT | M_ZERO); 3770 if (pool == NULL) 3771 return (ENOMEM); 3772 3773 snprintf(pool->name, sizeof(pool->name), "CTL IO %s", pool_name); 3774 pool->ctl_softc = ctl_softc; 3775 pool->zone = uma_zsecond_create(pool->name, NULL, 3776 NULL, NULL, NULL, ctl_softc->io_zone); 3777 /* uma_prealloc(pool->zone, total_ctl_io); */ 3778 3779 *npool = pool; 3780#else 3781 *npool = ctl_softc->io_zone; 3782#endif 3783 return (0); 3784} 3785 3786void 3787ctl_pool_free(struct ctl_io_pool *pool) 3788{ 3789 3790 if (pool == NULL) 3791 return; 3792 3793#ifdef IO_POOLS 3794 uma_zdestroy(pool->zone); 3795 free(pool, M_CTL); 3796#endif 3797} 3798 3799union ctl_io * 3800ctl_alloc_io(void *pool_ref) 3801{ 3802 union ctl_io *io; 3803#ifdef IO_POOLS 3804 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3805 3806 io = uma_zalloc(pool->zone, M_WAITOK); 3807#else 3808 io = uma_zalloc((uma_zone_t)pool_ref, M_WAITOK); 3809#endif 3810 if (io != NULL) 3811 io->io_hdr.pool = pool_ref; 3812 return (io); 3813} 3814 3815union ctl_io * 3816ctl_alloc_io_nowait(void *pool_ref) 3817{ 3818 union ctl_io *io; 3819#ifdef IO_POOLS 3820 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3821 3822 io = uma_zalloc(pool->zone, M_NOWAIT); 3823#else 3824 io = uma_zalloc((uma_zone_t)pool_ref, M_NOWAIT); 3825#endif 3826 if (io != NULL) 3827 io->io_hdr.pool = pool_ref; 3828 return (io); 3829} 3830 3831void 3832ctl_free_io(union ctl_io *io) 3833{ 3834#ifdef IO_POOLS 3835 struct ctl_io_pool *pool; 3836#endif 3837 3838 if (io == NULL) 3839 return; 3840 3841#ifdef IO_POOLS 3842 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3843 uma_zfree(pool->zone, io); 3844#else 3845 uma_zfree((uma_zone_t)io->io_hdr.pool, io); 3846#endif 3847} 3848 3849void 3850ctl_zero_io(union ctl_io *io) 3851{ 3852 void *pool_ref; 3853 3854 if (io == NULL) 3855 return; 3856 3857 /* 3858 * May need to preserve linked list pointers at some point too. 3859 */ 3860 pool_ref = io->io_hdr.pool; 3861 memset(io, 0, sizeof(*io)); 3862 io->io_hdr.pool = pool_ref; 3863} 3864 3865/* 3866 * This routine is currently used for internal copies of ctl_ios that need 3867 * to persist for some reason after we've already returned status to the 3868 * FETD. (Thus the flag set.) 3869 * 3870 * XXX XXX 3871 * Note that this makes a blind copy of all fields in the ctl_io, except 3872 * for the pool reference. This includes any memory that has been 3873 * allocated! That memory will no longer be valid after done has been 3874 * called, so this would be VERY DANGEROUS for command that actually does 3875 * any reads or writes. Right now (11/7/2005), this is only used for immediate 3876 * start and stop commands, which don't transfer any data, so this is not a 3877 * problem. If it is used for anything else, the caller would also need to 3878 * allocate data buffer space and this routine would need to be modified to 3879 * copy the data buffer(s) as well. 3880 */ 3881void 3882ctl_copy_io(union ctl_io *src, union ctl_io *dest) 3883{ 3884 void *pool_ref; 3885 3886 if ((src == NULL) 3887 || (dest == NULL)) 3888 return; 3889 3890 /* 3891 * May need to preserve linked list pointers at some point too. 3892 */ 3893 pool_ref = dest->io_hdr.pool; 3894 3895 memcpy(dest, src, ctl_min(sizeof(*src), sizeof(*dest))); 3896 3897 dest->io_hdr.pool = pool_ref; 3898 /* 3899 * We need to know that this is an internal copy, and doesn't need 3900 * to get passed back to the FETD that allocated it. 3901 */ 3902 dest->io_hdr.flags |= CTL_FLAG_INT_COPY; 3903} 3904 3905int 3906ctl_expand_number(const char *buf, uint64_t *num) 3907{ 3908 char *endptr; 3909 uint64_t number; 3910 unsigned shift; 3911 3912 number = strtoq(buf, &endptr, 0); 3913 3914 switch (tolower((unsigned char)*endptr)) { 3915 case 'e': 3916 shift = 60; 3917 break; 3918 case 'p': 3919 shift = 50; 3920 break; 3921 case 't': 3922 shift = 40; 3923 break; 3924 case 'g': 3925 shift = 30; 3926 break; 3927 case 'm': 3928 shift = 20; 3929 break; 3930 case 'k': 3931 shift = 10; 3932 break; 3933 case 'b': 3934 case '\0': /* No unit. */ 3935 *num = number; 3936 return (0); 3937 default: 3938 /* Unrecognized unit. */ 3939 return (-1); 3940 } 3941 3942 if ((number << shift) >> shift != number) { 3943 /* Overflow */ 3944 return (-1); 3945 } 3946 *num = number << shift; 3947 return (0); 3948} 3949 3950 3951/* 3952 * This routine could be used in the future to load default and/or saved 3953 * mode page parameters for a particuar lun. 3954 */ 3955static int 3956ctl_init_page_index(struct ctl_lun *lun) 3957{ 3958 int i; 3959 struct ctl_page_index *page_index; 3960 const char *value; 3961 uint64_t ival; 3962 3963 memcpy(&lun->mode_pages.index, page_index_template, 3964 sizeof(page_index_template)); 3965 3966 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 3967 3968 page_index = &lun->mode_pages.index[i]; 3969 /* 3970 * If this is a disk-only mode page, there's no point in 3971 * setting it up. For some pages, we have to have some 3972 * basic information about the disk in order to calculate the 3973 * mode page data. 3974 */ 3975 if ((lun->be_lun->lun_type != T_DIRECT) 3976 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 3977 continue; 3978 3979 switch (page_index->page_code & SMPH_PC_MASK) { 3980 case SMS_RW_ERROR_RECOVERY_PAGE: { 3981 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3982 panic("subpage is incorrect!"); 3983 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT], 3984 &rw_er_page_default, 3985 sizeof(rw_er_page_default)); 3986 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CHANGEABLE], 3987 &rw_er_page_changeable, 3988 sizeof(rw_er_page_changeable)); 3989 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_DEFAULT], 3990 &rw_er_page_default, 3991 sizeof(rw_er_page_default)); 3992 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_SAVED], 3993 &rw_er_page_default, 3994 sizeof(rw_er_page_default)); 3995 page_index->page_data = 3996 (uint8_t *)lun->mode_pages.rw_er_page; 3997 break; 3998 } 3999 case SMS_FORMAT_DEVICE_PAGE: { 4000 struct scsi_format_page *format_page; 4001 4002 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4003 panic("subpage is incorrect!"); 4004 4005 /* 4006 * Sectors per track are set above. Bytes per 4007 * sector need to be set here on a per-LUN basis. 4008 */ 4009 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 4010 &format_page_default, 4011 sizeof(format_page_default)); 4012 memcpy(&lun->mode_pages.format_page[ 4013 CTL_PAGE_CHANGEABLE], &format_page_changeable, 4014 sizeof(format_page_changeable)); 4015 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 4016 &format_page_default, 4017 sizeof(format_page_default)); 4018 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 4019 &format_page_default, 4020 sizeof(format_page_default)); 4021 4022 format_page = &lun->mode_pages.format_page[ 4023 CTL_PAGE_CURRENT]; 4024 scsi_ulto2b(lun->be_lun->blocksize, 4025 format_page->bytes_per_sector); 4026 4027 format_page = &lun->mode_pages.format_page[ 4028 CTL_PAGE_DEFAULT]; 4029 scsi_ulto2b(lun->be_lun->blocksize, 4030 format_page->bytes_per_sector); 4031 4032 format_page = &lun->mode_pages.format_page[ 4033 CTL_PAGE_SAVED]; 4034 scsi_ulto2b(lun->be_lun->blocksize, 4035 format_page->bytes_per_sector); 4036 4037 page_index->page_data = 4038 (uint8_t *)lun->mode_pages.format_page; 4039 break; 4040 } 4041 case SMS_RIGID_DISK_PAGE: { 4042 struct scsi_rigid_disk_page *rigid_disk_page; 4043 uint32_t sectors_per_cylinder; 4044 uint64_t cylinders; 4045#ifndef __XSCALE__ 4046 int shift; 4047#endif /* !__XSCALE__ */ 4048 4049 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4050 panic("invalid subpage value %d", 4051 page_index->subpage); 4052 4053 /* 4054 * Rotation rate and sectors per track are set 4055 * above. We calculate the cylinders here based on 4056 * capacity. Due to the number of heads and 4057 * sectors per track we're using, smaller arrays 4058 * may turn out to have 0 cylinders. Linux and 4059 * FreeBSD don't pay attention to these mode pages 4060 * to figure out capacity, but Solaris does. It 4061 * seems to deal with 0 cylinders just fine, and 4062 * works out a fake geometry based on the capacity. 4063 */ 4064 memcpy(&lun->mode_pages.rigid_disk_page[ 4065 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 4066 sizeof(rigid_disk_page_default)); 4067 memcpy(&lun->mode_pages.rigid_disk_page[ 4068 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4069 sizeof(rigid_disk_page_changeable)); 4070 4071 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4072 CTL_DEFAULT_HEADS; 4073 4074 /* 4075 * The divide method here will be more accurate, 4076 * probably, but results in floating point being 4077 * used in the kernel on i386 (__udivdi3()). On the 4078 * XScale, though, __udivdi3() is implemented in 4079 * software. 4080 * 4081 * The shift method for cylinder calculation is 4082 * accurate if sectors_per_cylinder is a power of 4083 * 2. Otherwise it might be slightly off -- you 4084 * might have a bit of a truncation problem. 4085 */ 4086#ifdef __XSCALE__ 4087 cylinders = (lun->be_lun->maxlba + 1) / 4088 sectors_per_cylinder; 4089#else 4090 for (shift = 31; shift > 0; shift--) { 4091 if (sectors_per_cylinder & (1 << shift)) 4092 break; 4093 } 4094 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4095#endif 4096 4097 /* 4098 * We've basically got 3 bytes, or 24 bits for the 4099 * cylinder size in the mode page. If we're over, 4100 * just round down to 2^24. 4101 */ 4102 if (cylinders > 0xffffff) 4103 cylinders = 0xffffff; 4104 4105 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4106 CTL_PAGE_DEFAULT]; 4107 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4108 4109 if ((value = ctl_get_opt(&lun->be_lun->options, 4110 "rpm")) != NULL) { 4111 scsi_ulto2b(strtol(value, NULL, 0), 4112 rigid_disk_page->rotation_rate); 4113 } 4114 4115 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_CURRENT], 4116 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4117 sizeof(rigid_disk_page_default)); 4118 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_SAVED], 4119 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4120 sizeof(rigid_disk_page_default)); 4121 4122 page_index->page_data = 4123 (uint8_t *)lun->mode_pages.rigid_disk_page; 4124 break; 4125 } 4126 case SMS_CACHING_PAGE: { 4127 struct scsi_caching_page *caching_page; 4128 4129 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4130 panic("invalid subpage value %d", 4131 page_index->subpage); 4132 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4133 &caching_page_default, 4134 sizeof(caching_page_default)); 4135 memcpy(&lun->mode_pages.caching_page[ 4136 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4137 sizeof(caching_page_changeable)); 4138 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4139 &caching_page_default, 4140 sizeof(caching_page_default)); 4141 caching_page = &lun->mode_pages.caching_page[ 4142 CTL_PAGE_SAVED]; 4143 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4144 if (value != NULL && strcmp(value, "off") == 0) 4145 caching_page->flags1 &= ~SCP_WCE; 4146 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4147 if (value != NULL && strcmp(value, "off") == 0) 4148 caching_page->flags1 |= SCP_RCD; 4149 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4150 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4151 sizeof(caching_page_default)); 4152 page_index->page_data = 4153 (uint8_t *)lun->mode_pages.caching_page; 4154 break; 4155 } 4156 case SMS_CONTROL_MODE_PAGE: { 4157 struct scsi_control_page *control_page; 4158 4159 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4160 panic("invalid subpage value %d", 4161 page_index->subpage); 4162 4163 memcpy(&lun->mode_pages.control_page[CTL_PAGE_DEFAULT], 4164 &control_page_default, 4165 sizeof(control_page_default)); 4166 memcpy(&lun->mode_pages.control_page[ 4167 CTL_PAGE_CHANGEABLE], &control_page_changeable, 4168 sizeof(control_page_changeable)); 4169 memcpy(&lun->mode_pages.control_page[CTL_PAGE_SAVED], 4170 &control_page_default, 4171 sizeof(control_page_default)); 4172 control_page = &lun->mode_pages.control_page[ 4173 CTL_PAGE_SAVED]; 4174 value = ctl_get_opt(&lun->be_lun->options, "reordering"); 4175 if (value != NULL && strcmp(value, "unrestricted") == 0) { 4176 control_page->queue_flags &= ~SCP_QUEUE_ALG_MASK; 4177 control_page->queue_flags |= SCP_QUEUE_ALG_UNRESTRICTED; 4178 } 4179 memcpy(&lun->mode_pages.control_page[CTL_PAGE_CURRENT], 4180 &lun->mode_pages.control_page[CTL_PAGE_SAVED], 4181 sizeof(control_page_default)); 4182 page_index->page_data = 4183 (uint8_t *)lun->mode_pages.control_page; 4184 break; 4185 4186 } 4187 case SMS_INFO_EXCEPTIONS_PAGE: { 4188 switch (page_index->subpage) { 4189 case SMS_SUBPAGE_PAGE_0: 4190 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_CURRENT], 4191 &ie_page_default, 4192 sizeof(ie_page_default)); 4193 memcpy(&lun->mode_pages.ie_page[ 4194 CTL_PAGE_CHANGEABLE], &ie_page_changeable, 4195 sizeof(ie_page_changeable)); 4196 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_DEFAULT], 4197 &ie_page_default, 4198 sizeof(ie_page_default)); 4199 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_SAVED], 4200 &ie_page_default, 4201 sizeof(ie_page_default)); 4202 page_index->page_data = 4203 (uint8_t *)lun->mode_pages.ie_page; 4204 break; 4205 case 0x02: { 4206 struct ctl_logical_block_provisioning_page *page; 4207 4208 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_DEFAULT], 4209 &lbp_page_default, 4210 sizeof(lbp_page_default)); 4211 memcpy(&lun->mode_pages.lbp_page[ 4212 CTL_PAGE_CHANGEABLE], &lbp_page_changeable, 4213 sizeof(lbp_page_changeable)); 4214 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4215 &lbp_page_default, 4216 sizeof(lbp_page_default)); 4217 page = &lun->mode_pages.lbp_page[CTL_PAGE_SAVED]; 4218 value = ctl_get_opt(&lun->be_lun->options, 4219 "avail-threshold"); 4220 if (value != NULL && 4221 ctl_expand_number(value, &ival) == 0) { 4222 page->descr[0].flags |= SLBPPD_ENABLED | 4223 SLBPPD_ARMING_DEC; 4224 if (lun->be_lun->blocksize) 4225 ival /= lun->be_lun->blocksize; 4226 else 4227 ival /= 512; 4228 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4229 page->descr[0].count); 4230 } 4231 value = ctl_get_opt(&lun->be_lun->options, 4232 "used-threshold"); 4233 if (value != NULL && 4234 ctl_expand_number(value, &ival) == 0) { 4235 page->descr[1].flags |= SLBPPD_ENABLED | 4236 SLBPPD_ARMING_INC; 4237 if (lun->be_lun->blocksize) 4238 ival /= lun->be_lun->blocksize; 4239 else 4240 ival /= 512; 4241 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4242 page->descr[1].count); 4243 } 4244 value = ctl_get_opt(&lun->be_lun->options, 4245 "pool-avail-threshold"); 4246 if (value != NULL && 4247 ctl_expand_number(value, &ival) == 0) { 4248 page->descr[2].flags |= SLBPPD_ENABLED | 4249 SLBPPD_ARMING_DEC; 4250 if (lun->be_lun->blocksize) 4251 ival /= lun->be_lun->blocksize; 4252 else 4253 ival /= 512; 4254 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4255 page->descr[2].count); 4256 } 4257 value = ctl_get_opt(&lun->be_lun->options, 4258 "pool-used-threshold"); 4259 if (value != NULL && 4260 ctl_expand_number(value, &ival) == 0) { 4261 page->descr[3].flags |= SLBPPD_ENABLED | 4262 SLBPPD_ARMING_INC; 4263 if (lun->be_lun->blocksize) 4264 ival /= lun->be_lun->blocksize; 4265 else 4266 ival /= 512; 4267 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4268 page->descr[3].count); 4269 } 4270 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_CURRENT], 4271 &lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4272 sizeof(lbp_page_default)); 4273 page_index->page_data = 4274 (uint8_t *)lun->mode_pages.lbp_page; 4275 }} 4276 break; 4277 } 4278 case SMS_VENDOR_SPECIFIC_PAGE:{ 4279 switch (page_index->subpage) { 4280 case DBGCNF_SUBPAGE_CODE: { 4281 struct copan_debugconf_subpage *current_page, 4282 *saved_page; 4283 4284 memcpy(&lun->mode_pages.debugconf_subpage[ 4285 CTL_PAGE_CURRENT], 4286 &debugconf_page_default, 4287 sizeof(debugconf_page_default)); 4288 memcpy(&lun->mode_pages.debugconf_subpage[ 4289 CTL_PAGE_CHANGEABLE], 4290 &debugconf_page_changeable, 4291 sizeof(debugconf_page_changeable)); 4292 memcpy(&lun->mode_pages.debugconf_subpage[ 4293 CTL_PAGE_DEFAULT], 4294 &debugconf_page_default, 4295 sizeof(debugconf_page_default)); 4296 memcpy(&lun->mode_pages.debugconf_subpage[ 4297 CTL_PAGE_SAVED], 4298 &debugconf_page_default, 4299 sizeof(debugconf_page_default)); 4300 page_index->page_data = 4301 (uint8_t *)lun->mode_pages.debugconf_subpage; 4302 4303 current_page = (struct copan_debugconf_subpage *) 4304 (page_index->page_data + 4305 (page_index->page_len * 4306 CTL_PAGE_CURRENT)); 4307 saved_page = (struct copan_debugconf_subpage *) 4308 (page_index->page_data + 4309 (page_index->page_len * 4310 CTL_PAGE_SAVED)); 4311 break; 4312 } 4313 default: 4314 panic("invalid subpage value %d", 4315 page_index->subpage); 4316 break; 4317 } 4318 break; 4319 } 4320 default: 4321 panic("invalid page value %d", 4322 page_index->page_code & SMPH_PC_MASK); 4323 break; 4324 } 4325 } 4326 4327 return (CTL_RETVAL_COMPLETE); 4328} 4329 4330static int 4331ctl_init_log_page_index(struct ctl_lun *lun) 4332{ 4333 struct ctl_page_index *page_index; 4334 int i, j, k, prev; 4335 4336 memcpy(&lun->log_pages.index, log_page_index_template, 4337 sizeof(log_page_index_template)); 4338 4339 prev = -1; 4340 for (i = 0, j = 0, k = 0; i < CTL_NUM_LOG_PAGES; i++) { 4341 4342 page_index = &lun->log_pages.index[i]; 4343 /* 4344 * If this is a disk-only mode page, there's no point in 4345 * setting it up. For some pages, we have to have some 4346 * basic information about the disk in order to calculate the 4347 * mode page data. 4348 */ 4349 if ((lun->be_lun->lun_type != T_DIRECT) 4350 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 4351 continue; 4352 4353 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING && 4354 lun->backend->lun_attr == NULL) 4355 continue; 4356 4357 if (page_index->page_code != prev) { 4358 lun->log_pages.pages_page[j] = page_index->page_code; 4359 prev = page_index->page_code; 4360 j++; 4361 } 4362 lun->log_pages.subpages_page[k*2] = page_index->page_code; 4363 lun->log_pages.subpages_page[k*2+1] = page_index->subpage; 4364 k++; 4365 } 4366 lun->log_pages.index[0].page_data = &lun->log_pages.pages_page[0]; 4367 lun->log_pages.index[0].page_len = j; 4368 lun->log_pages.index[1].page_data = &lun->log_pages.subpages_page[0]; 4369 lun->log_pages.index[1].page_len = k * 2; 4370 lun->log_pages.index[2].page_data = &lun->log_pages.lbp_page[0]; 4371 lun->log_pages.index[2].page_len = 12*CTL_NUM_LBP_PARAMS; 4372 4373 return (CTL_RETVAL_COMPLETE); 4374} 4375 4376static int 4377hex2bin(const char *str, uint8_t *buf, int buf_size) 4378{ 4379 int i; 4380 u_char c; 4381 4382 memset(buf, 0, buf_size); 4383 while (isspace(str[0])) 4384 str++; 4385 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) 4386 str += 2; 4387 buf_size *= 2; 4388 for (i = 0; str[i] != 0 && i < buf_size; i++) { 4389 c = str[i]; 4390 if (isdigit(c)) 4391 c -= '0'; 4392 else if (isalpha(c)) 4393 c -= isupper(c) ? 'A' - 10 : 'a' - 10; 4394 else 4395 break; 4396 if (c >= 16) 4397 break; 4398 if ((i & 1) == 0) 4399 buf[i / 2] |= (c << 4); 4400 else 4401 buf[i / 2] |= c; 4402 } 4403 return ((i + 1) / 2); 4404} 4405 4406/* 4407 * LUN allocation. 4408 * 4409 * Requirements: 4410 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4411 * wants us to allocate the LUN and he can block. 4412 * - ctl_softc is always set 4413 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4414 * 4415 * Returns 0 for success, non-zero (errno) for failure. 4416 */ 4417static int 4418ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4419 struct ctl_be_lun *const be_lun, struct ctl_id target_id) 4420{ 4421 struct ctl_lun *nlun, *lun; 4422 struct ctl_port *port; 4423 struct scsi_vpd_id_descriptor *desc; 4424 struct scsi_vpd_id_t10 *t10id; 4425 const char *eui, *naa, *scsiname, *vendor, *value; 4426 int lun_number, i, lun_malloced; 4427 int devidlen, idlen1, idlen2 = 0, len; 4428 4429 if (be_lun == NULL) 4430 return (EINVAL); 4431 4432 /* 4433 * We currently only support Direct Access or Processor LUN types. 4434 */ 4435 switch (be_lun->lun_type) { 4436 case T_DIRECT: 4437 break; 4438 case T_PROCESSOR: 4439 break; 4440 case T_SEQUENTIAL: 4441 case T_CHANGER: 4442 default: 4443 be_lun->lun_config_status(be_lun->be_lun, 4444 CTL_LUN_CONFIG_FAILURE); 4445 break; 4446 } 4447 if (ctl_lun == NULL) { 4448 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4449 lun_malloced = 1; 4450 } else { 4451 lun_malloced = 0; 4452 lun = ctl_lun; 4453 } 4454 4455 memset(lun, 0, sizeof(*lun)); 4456 if (lun_malloced) 4457 lun->flags = CTL_LUN_MALLOCED; 4458 4459 /* Generate LUN ID. */ 4460 devidlen = max(CTL_DEVID_MIN_LEN, 4461 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4462 idlen1 = sizeof(*t10id) + devidlen; 4463 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4464 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4465 if (scsiname != NULL) { 4466 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4467 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4468 } 4469 eui = ctl_get_opt(&be_lun->options, "eui"); 4470 if (eui != NULL) { 4471 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4472 } 4473 naa = ctl_get_opt(&be_lun->options, "naa"); 4474 if (naa != NULL) { 4475 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4476 } 4477 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4478 M_CTL, M_WAITOK | M_ZERO); 4479 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4480 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4481 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4482 desc->length = idlen1; 4483 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4484 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4485 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4486 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4487 } else { 4488 strncpy(t10id->vendor, vendor, 4489 min(sizeof(t10id->vendor), strlen(vendor))); 4490 } 4491 strncpy((char *)t10id->vendor_spec_id, 4492 (char *)be_lun->device_id, devidlen); 4493 if (scsiname != NULL) { 4494 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4495 desc->length); 4496 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4497 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4498 SVPD_ID_TYPE_SCSI_NAME; 4499 desc->length = idlen2; 4500 strlcpy(desc->identifier, scsiname, idlen2); 4501 } 4502 if (eui != NULL) { 4503 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4504 desc->length); 4505 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4506 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4507 SVPD_ID_TYPE_EUI64; 4508 desc->length = hex2bin(eui, desc->identifier, 16); 4509 desc->length = desc->length > 12 ? 16 : 4510 (desc->length > 8 ? 12 : 8); 4511 len -= 16 - desc->length; 4512 } 4513 if (naa != NULL) { 4514 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4515 desc->length); 4516 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4517 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4518 SVPD_ID_TYPE_NAA; 4519 desc->length = hex2bin(naa, desc->identifier, 16); 4520 desc->length = desc->length > 8 ? 16 : 8; 4521 len -= 16 - desc->length; 4522 } 4523 lun->lun_devid->len = len; 4524 4525 mtx_lock(&ctl_softc->ctl_lock); 4526 /* 4527 * See if the caller requested a particular LUN number. If so, see 4528 * if it is available. Otherwise, allocate the first available LUN. 4529 */ 4530 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4531 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4532 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4533 mtx_unlock(&ctl_softc->ctl_lock); 4534 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4535 printf("ctl: requested LUN ID %d is higher " 4536 "than CTL_MAX_LUNS - 1 (%d)\n", 4537 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4538 } else { 4539 /* 4540 * XXX KDM return an error, or just assign 4541 * another LUN ID in this case?? 4542 */ 4543 printf("ctl: requested LUN ID %d is already " 4544 "in use\n", be_lun->req_lun_id); 4545 } 4546 if (lun->flags & CTL_LUN_MALLOCED) 4547 free(lun, M_CTL); 4548 be_lun->lun_config_status(be_lun->be_lun, 4549 CTL_LUN_CONFIG_FAILURE); 4550 return (ENOSPC); 4551 } 4552 lun_number = be_lun->req_lun_id; 4553 } else { 4554 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, CTL_MAX_LUNS); 4555 if (lun_number == -1) { 4556 mtx_unlock(&ctl_softc->ctl_lock); 4557 printf("ctl: can't allocate LUN on target %ju, out of " 4558 "LUNs\n", (uintmax_t)target_id.id); 4559 if (lun->flags & CTL_LUN_MALLOCED) 4560 free(lun, M_CTL); 4561 be_lun->lun_config_status(be_lun->be_lun, 4562 CTL_LUN_CONFIG_FAILURE); 4563 return (ENOSPC); 4564 } 4565 } 4566 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4567 4568 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4569 lun->target = target_id; 4570 lun->lun = lun_number; 4571 lun->be_lun = be_lun; 4572 /* 4573 * The processor LUN is always enabled. Disk LUNs come on line 4574 * disabled, and must be enabled by the backend. 4575 */ 4576 lun->flags |= CTL_LUN_DISABLED; 4577 lun->backend = be_lun->be; 4578 be_lun->ctl_lun = lun; 4579 be_lun->lun_id = lun_number; 4580 atomic_add_int(&be_lun->be->num_luns, 1); 4581 if (be_lun->flags & CTL_LUN_FLAG_OFFLINE) 4582 lun->flags |= CTL_LUN_OFFLINE; 4583 4584 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4585 lun->flags |= CTL_LUN_STOPPED; 4586 4587 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4588 lun->flags |= CTL_LUN_INOPERABLE; 4589 4590 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4591 lun->flags |= CTL_LUN_PRIMARY_SC; 4592 4593 value = ctl_get_opt(&be_lun->options, "readonly"); 4594 if (value != NULL && strcmp(value, "on") == 0) 4595 lun->flags |= CTL_LUN_READONLY; 4596 4597 lun->serseq = CTL_LUN_SERSEQ_OFF; 4598 if (be_lun->flags & CTL_LUN_FLAG_SERSEQ_READ) 4599 lun->serseq = CTL_LUN_SERSEQ_READ; 4600 value = ctl_get_opt(&be_lun->options, "serseq"); 4601 if (value != NULL && strcmp(value, "on") == 0) 4602 lun->serseq = CTL_LUN_SERSEQ_ON; 4603 else if (value != NULL && strcmp(value, "read") == 0) 4604 lun->serseq = CTL_LUN_SERSEQ_READ; 4605 else if (value != NULL && strcmp(value, "off") == 0) 4606 lun->serseq = CTL_LUN_SERSEQ_OFF; 4607 4608 lun->ctl_softc = ctl_softc; 4609 TAILQ_INIT(&lun->ooa_queue); 4610 TAILQ_INIT(&lun->blocked_queue); 4611 STAILQ_INIT(&lun->error_list); 4612 ctl_tpc_lun_init(lun); 4613 4614 /* 4615 * Initialize the mode and log page index. 4616 */ 4617 ctl_init_page_index(lun); 4618 ctl_init_log_page_index(lun); 4619 4620 /* 4621 * Now, before we insert this lun on the lun list, set the lun 4622 * inventory changed UA for all other luns. 4623 */ 4624 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4625 mtx_lock(&nlun->lun_lock); 4626 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4627 mtx_unlock(&nlun->lun_lock); 4628 } 4629 4630 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4631 4632 ctl_softc->ctl_luns[lun_number] = lun; 4633 4634 ctl_softc->num_luns++; 4635 4636 /* Setup statistics gathering */ 4637 lun->stats.device_type = be_lun->lun_type; 4638 lun->stats.lun_number = lun_number; 4639 if (lun->stats.device_type == T_DIRECT) 4640 lun->stats.blocksize = be_lun->blocksize; 4641 else 4642 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4643 for (i = 0;i < CTL_MAX_PORTS;i++) 4644 lun->stats.ports[i].targ_port = i; 4645 4646 mtx_unlock(&ctl_softc->ctl_lock); 4647 4648 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4649 4650 /* 4651 * Run through each registered FETD and bring it online if it isn't 4652 * already. Enable the target ID if it hasn't been enabled, and 4653 * enable this particular LUN. 4654 */ 4655 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4656 int retval; 4657 4658 retval = port->lun_enable(port->targ_lun_arg, target_id,lun_number); 4659 if (retval != 0) { 4660 printf("ctl_alloc_lun: FETD %s port %d returned error " 4661 "%d for lun_enable on target %ju lun %d\n", 4662 port->port_name, port->targ_port, retval, 4663 (uintmax_t)target_id.id, lun_number); 4664 } else 4665 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4666 } 4667 return (0); 4668} 4669 4670/* 4671 * Delete a LUN. 4672 * Assumptions: 4673 * - LUN has already been marked invalid and any pending I/O has been taken 4674 * care of. 4675 */ 4676static int 4677ctl_free_lun(struct ctl_lun *lun) 4678{ 4679 struct ctl_softc *softc; 4680#if 0 4681 struct ctl_port *port; 4682#endif 4683 struct ctl_lun *nlun; 4684 int i; 4685 4686 softc = lun->ctl_softc; 4687 4688 mtx_assert(&softc->ctl_lock, MA_OWNED); 4689 4690 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4691 4692 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4693 4694 softc->ctl_luns[lun->lun] = NULL; 4695 4696 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4697 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4698 4699 softc->num_luns--; 4700 4701 /* 4702 * XXX KDM this scheme only works for a single target/multiple LUN 4703 * setup. It needs to be revamped for a multiple target scheme. 4704 * 4705 * XXX KDM this results in port->lun_disable() getting called twice, 4706 * once when ctl_disable_lun() is called, and a second time here. 4707 * We really need to re-think the LUN disable semantics. There 4708 * should probably be several steps/levels to LUN removal: 4709 * - disable 4710 * - invalidate 4711 * - free 4712 * 4713 * Right now we only have a disable method when communicating to 4714 * the front end ports, at least for individual LUNs. 4715 */ 4716#if 0 4717 STAILQ_FOREACH(port, &softc->port_list, links) { 4718 int retval; 4719 4720 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4721 lun->lun); 4722 if (retval != 0) { 4723 printf("ctl_free_lun: FETD %s port %d returned error " 4724 "%d for lun_disable on target %ju lun %jd\n", 4725 port->port_name, port->targ_port, retval, 4726 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4727 } 4728 4729 if (STAILQ_FIRST(&softc->lun_list) == NULL) { 4730 port->status &= ~CTL_PORT_STATUS_LUN_ONLINE; 4731 4732 retval = port->targ_disable(port->targ_lun_arg,lun->target); 4733 if (retval != 0) { 4734 printf("ctl_free_lun: FETD %s port %d " 4735 "returned error %d for targ_disable on " 4736 "target %ju\n", port->port_name, 4737 port->targ_port, retval, 4738 (uintmax_t)lun->target.id); 4739 } else 4740 port->status &= ~CTL_PORT_STATUS_TARG_ONLINE; 4741 4742 if ((port->status & CTL_PORT_STATUS_TARG_ONLINE) != 0) 4743 continue; 4744 4745#if 0 4746 port->port_offline(port->onoff_arg); 4747 port->status &= ~CTL_PORT_STATUS_ONLINE; 4748#endif 4749 } 4750 } 4751#endif 4752 4753 /* 4754 * Tell the backend to free resources, if this LUN has a backend. 4755 */ 4756 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4757 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4758 4759 ctl_tpc_lun_shutdown(lun); 4760 mtx_destroy(&lun->lun_lock); 4761 free(lun->lun_devid, M_CTL); 4762 for (i = 0; i < CTL_MAX_PORTS; i++) 4763 free(lun->pending_ua[i], M_CTL); 4764 for (i = 0; i < 2 * CTL_MAX_PORTS; i++) 4765 free(lun->pr_keys[i], M_CTL); 4766 free(lun->write_buffer, M_CTL); 4767 if (lun->flags & CTL_LUN_MALLOCED) 4768 free(lun, M_CTL); 4769 4770 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4771 mtx_lock(&nlun->lun_lock); 4772 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4773 mtx_unlock(&nlun->lun_lock); 4774 } 4775 4776 return (0); 4777} 4778 4779static void 4780ctl_create_lun(struct ctl_be_lun *be_lun) 4781{ 4782 struct ctl_softc *ctl_softc; 4783 4784 ctl_softc = control_softc; 4785 4786 /* 4787 * ctl_alloc_lun() should handle all potential failure cases. 4788 */ 4789 ctl_alloc_lun(ctl_softc, NULL, be_lun, ctl_softc->target); 4790} 4791 4792int 4793ctl_add_lun(struct ctl_be_lun *be_lun) 4794{ 4795 struct ctl_softc *ctl_softc = control_softc; 4796 4797 mtx_lock(&ctl_softc->ctl_lock); 4798 STAILQ_INSERT_TAIL(&ctl_softc->pending_lun_queue, be_lun, links); 4799 mtx_unlock(&ctl_softc->ctl_lock); 4800 wakeup(&ctl_softc->pending_lun_queue); 4801 4802 return (0); 4803} 4804 4805int 4806ctl_enable_lun(struct ctl_be_lun *be_lun) 4807{ 4808 struct ctl_softc *ctl_softc; 4809 struct ctl_port *port, *nport; 4810 struct ctl_lun *lun; 4811 int retval; 4812 4813 ctl_softc = control_softc; 4814 4815 lun = (struct ctl_lun *)be_lun->ctl_lun; 4816 4817 mtx_lock(&ctl_softc->ctl_lock); 4818 mtx_lock(&lun->lun_lock); 4819 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4820 /* 4821 * eh? Why did we get called if the LUN is already 4822 * enabled? 4823 */ 4824 mtx_unlock(&lun->lun_lock); 4825 mtx_unlock(&ctl_softc->ctl_lock); 4826 return (0); 4827 } 4828 lun->flags &= ~CTL_LUN_DISABLED; 4829 mtx_unlock(&lun->lun_lock); 4830 4831 for (port = STAILQ_FIRST(&ctl_softc->port_list); port != NULL; port = nport) { 4832 nport = STAILQ_NEXT(port, links); 4833 4834 /* 4835 * Drop the lock while we call the FETD's enable routine. 4836 * This can lead to a callback into CTL (at least in the 4837 * case of the internal initiator frontend. 4838 */ 4839 mtx_unlock(&ctl_softc->ctl_lock); 4840 retval = port->lun_enable(port->targ_lun_arg, lun->target,lun->lun); 4841 mtx_lock(&ctl_softc->ctl_lock); 4842 if (retval != 0) { 4843 printf("%s: FETD %s port %d returned error " 4844 "%d for lun_enable on target %ju lun %jd\n", 4845 __func__, port->port_name, port->targ_port, retval, 4846 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4847 } 4848#if 0 4849 else { 4850 /* NOTE: TODO: why does lun enable affect port status? */ 4851 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4852 } 4853#endif 4854 } 4855 4856 mtx_unlock(&ctl_softc->ctl_lock); 4857 4858 return (0); 4859} 4860 4861int 4862ctl_disable_lun(struct ctl_be_lun *be_lun) 4863{ 4864 struct ctl_softc *ctl_softc; 4865 struct ctl_port *port; 4866 struct ctl_lun *lun; 4867 int retval; 4868 4869 ctl_softc = control_softc; 4870 4871 lun = (struct ctl_lun *)be_lun->ctl_lun; 4872 4873 mtx_lock(&ctl_softc->ctl_lock); 4874 mtx_lock(&lun->lun_lock); 4875 if (lun->flags & CTL_LUN_DISABLED) { 4876 mtx_unlock(&lun->lun_lock); 4877 mtx_unlock(&ctl_softc->ctl_lock); 4878 return (0); 4879 } 4880 lun->flags |= CTL_LUN_DISABLED; 4881 mtx_unlock(&lun->lun_lock); 4882 4883 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4884 mtx_unlock(&ctl_softc->ctl_lock); 4885 /* 4886 * Drop the lock before we call the frontend's disable 4887 * routine, to avoid lock order reversals. 4888 * 4889 * XXX KDM what happens if the frontend list changes while 4890 * we're traversing it? It's unlikely, but should be handled. 4891 */ 4892 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4893 lun->lun); 4894 mtx_lock(&ctl_softc->ctl_lock); 4895 if (retval != 0) { 4896 printf("ctl_alloc_lun: FETD %s port %d returned error " 4897 "%d for lun_disable on target %ju lun %jd\n", 4898 port->port_name, port->targ_port, retval, 4899 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4900 } 4901 } 4902 4903 mtx_unlock(&ctl_softc->ctl_lock); 4904 4905 return (0); 4906} 4907 4908int 4909ctl_start_lun(struct ctl_be_lun *be_lun) 4910{ 4911 struct ctl_softc *ctl_softc; 4912 struct ctl_lun *lun; 4913 4914 ctl_softc = control_softc; 4915 4916 lun = (struct ctl_lun *)be_lun->ctl_lun; 4917 4918 mtx_lock(&lun->lun_lock); 4919 lun->flags &= ~CTL_LUN_STOPPED; 4920 mtx_unlock(&lun->lun_lock); 4921 4922 return (0); 4923} 4924 4925int 4926ctl_stop_lun(struct ctl_be_lun *be_lun) 4927{ 4928 struct ctl_softc *ctl_softc; 4929 struct ctl_lun *lun; 4930 4931 ctl_softc = control_softc; 4932 4933 lun = (struct ctl_lun *)be_lun->ctl_lun; 4934 4935 mtx_lock(&lun->lun_lock); 4936 lun->flags |= CTL_LUN_STOPPED; 4937 mtx_unlock(&lun->lun_lock); 4938 4939 return (0); 4940} 4941 4942int 4943ctl_lun_offline(struct ctl_be_lun *be_lun) 4944{ 4945 struct ctl_softc *ctl_softc; 4946 struct ctl_lun *lun; 4947 4948 ctl_softc = control_softc; 4949 4950 lun = (struct ctl_lun *)be_lun->ctl_lun; 4951 4952 mtx_lock(&lun->lun_lock); 4953 lun->flags |= CTL_LUN_OFFLINE; 4954 mtx_unlock(&lun->lun_lock); 4955 4956 return (0); 4957} 4958 4959int 4960ctl_lun_online(struct ctl_be_lun *be_lun) 4961{ 4962 struct ctl_softc *ctl_softc; 4963 struct ctl_lun *lun; 4964 4965 ctl_softc = control_softc; 4966 4967 lun = (struct ctl_lun *)be_lun->ctl_lun; 4968 4969 mtx_lock(&lun->lun_lock); 4970 lun->flags &= ~CTL_LUN_OFFLINE; 4971 mtx_unlock(&lun->lun_lock); 4972 4973 return (0); 4974} 4975 4976int 4977ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4978{ 4979 struct ctl_softc *ctl_softc; 4980 struct ctl_lun *lun; 4981 4982 ctl_softc = control_softc; 4983 4984 lun = (struct ctl_lun *)be_lun->ctl_lun; 4985 4986 mtx_lock(&lun->lun_lock); 4987 4988 /* 4989 * The LUN needs to be disabled before it can be marked invalid. 4990 */ 4991 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4992 mtx_unlock(&lun->lun_lock); 4993 return (-1); 4994 } 4995 /* 4996 * Mark the LUN invalid. 4997 */ 4998 lun->flags |= CTL_LUN_INVALID; 4999 5000 /* 5001 * If there is nothing in the OOA queue, go ahead and free the LUN. 5002 * If we have something in the OOA queue, we'll free it when the 5003 * last I/O completes. 5004 */ 5005 if (TAILQ_EMPTY(&lun->ooa_queue)) { 5006 mtx_unlock(&lun->lun_lock); 5007 mtx_lock(&ctl_softc->ctl_lock); 5008 ctl_free_lun(lun); 5009 mtx_unlock(&ctl_softc->ctl_lock); 5010 } else 5011 mtx_unlock(&lun->lun_lock); 5012 5013 return (0); 5014} 5015 5016int 5017ctl_lun_inoperable(struct ctl_be_lun *be_lun) 5018{ 5019 struct ctl_softc *ctl_softc; 5020 struct ctl_lun *lun; 5021 5022 ctl_softc = control_softc; 5023 lun = (struct ctl_lun *)be_lun->ctl_lun; 5024 5025 mtx_lock(&lun->lun_lock); 5026 lun->flags |= CTL_LUN_INOPERABLE; 5027 mtx_unlock(&lun->lun_lock); 5028 5029 return (0); 5030} 5031 5032int 5033ctl_lun_operable(struct ctl_be_lun *be_lun) 5034{ 5035 struct ctl_softc *ctl_softc; 5036 struct ctl_lun *lun; 5037 5038 ctl_softc = control_softc; 5039 lun = (struct ctl_lun *)be_lun->ctl_lun; 5040 5041 mtx_lock(&lun->lun_lock); 5042 lun->flags &= ~CTL_LUN_INOPERABLE; 5043 mtx_unlock(&lun->lun_lock); 5044 5045 return (0); 5046} 5047 5048void 5049ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 5050{ 5051 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 5052 5053 mtx_lock(&lun->lun_lock); 5054 ctl_est_ua_all(lun, -1, CTL_UA_CAPACITY_CHANGED); 5055 mtx_unlock(&lun->lun_lock); 5056} 5057 5058/* 5059 * Backend "memory move is complete" callback for requests that never 5060 * make it down to say RAIDCore's configuration code. 5061 */ 5062int 5063ctl_config_move_done(union ctl_io *io) 5064{ 5065 int retval; 5066 5067 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 5068 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI, 5069 ("Config I/O type isn't CTL_IO_SCSI (%d)!", io->io_hdr.io_type)); 5070 5071 if ((io->io_hdr.port_status != 0) && 5072 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5073 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5074 /* 5075 * For hardware error sense keys, the sense key 5076 * specific value is defined to be a retry count, 5077 * but we use it to pass back an internal FETD 5078 * error code. XXX KDM Hopefully the FETD is only 5079 * using 16 bits for an error code, since that's 5080 * all the space we have in the sks field. 5081 */ 5082 ctl_set_internal_failure(&io->scsiio, 5083 /*sks_valid*/ 1, 5084 /*retry_count*/ 5085 io->io_hdr.port_status); 5086 } 5087 5088 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) || 5089 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5090 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) || 5091 ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5092 /* 5093 * XXX KDM just assuming a single pointer here, and not a 5094 * S/G list. If we start using S/G lists for config data, 5095 * we'll need to know how to clean them up here as well. 5096 */ 5097 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5098 free(io->scsiio.kern_data_ptr, M_CTL); 5099 ctl_done(io); 5100 retval = CTL_RETVAL_COMPLETE; 5101 } else { 5102 /* 5103 * XXX KDM now we need to continue data movement. Some 5104 * options: 5105 * - call ctl_scsiio() again? We don't do this for data 5106 * writes, because for those at least we know ahead of 5107 * time where the write will go and how long it is. For 5108 * config writes, though, that information is largely 5109 * contained within the write itself, thus we need to 5110 * parse out the data again. 5111 * 5112 * - Call some other function once the data is in? 5113 */ 5114 if (ctl_debug & CTL_DEBUG_CDB_DATA) 5115 ctl_data_print(io); 5116 5117 /* 5118 * XXX KDM call ctl_scsiio() again for now, and check flag 5119 * bits to see whether we're allocated or not. 5120 */ 5121 retval = ctl_scsiio(&io->scsiio); 5122 } 5123 return (retval); 5124} 5125 5126/* 5127 * This gets called by a backend driver when it is done with a 5128 * data_submit method. 5129 */ 5130void 5131ctl_data_submit_done(union ctl_io *io) 5132{ 5133 /* 5134 * If the IO_CONT flag is set, we need to call the supplied 5135 * function to continue processing the I/O, instead of completing 5136 * the I/O just yet. 5137 * 5138 * If there is an error, though, we don't want to keep processing. 5139 * Instead, just send status back to the initiator. 5140 */ 5141 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5142 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5143 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5144 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5145 io->scsiio.io_cont(io); 5146 return; 5147 } 5148 ctl_done(io); 5149} 5150 5151/* 5152 * This gets called by a backend driver when it is done with a 5153 * configuration write. 5154 */ 5155void 5156ctl_config_write_done(union ctl_io *io) 5157{ 5158 uint8_t *buf; 5159 5160 /* 5161 * If the IO_CONT flag is set, we need to call the supplied 5162 * function to continue processing the I/O, instead of completing 5163 * the I/O just yet. 5164 * 5165 * If there is an error, though, we don't want to keep processing. 5166 * Instead, just send status back to the initiator. 5167 */ 5168 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5169 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5170 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5171 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5172 io->scsiio.io_cont(io); 5173 return; 5174 } 5175 /* 5176 * Since a configuration write can be done for commands that actually 5177 * have data allocated, like write buffer, and commands that have 5178 * no data, like start/stop unit, we need to check here. 5179 */ 5180 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5181 buf = io->scsiio.kern_data_ptr; 5182 else 5183 buf = NULL; 5184 ctl_done(io); 5185 if (buf) 5186 free(buf, M_CTL); 5187} 5188 5189void 5190ctl_config_read_done(union ctl_io *io) 5191{ 5192 uint8_t *buf; 5193 5194 /* 5195 * If there is some error -- we are done, skip data transfer. 5196 */ 5197 if ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0 || 5198 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5199 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) { 5200 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5201 buf = io->scsiio.kern_data_ptr; 5202 else 5203 buf = NULL; 5204 ctl_done(io); 5205 if (buf) 5206 free(buf, M_CTL); 5207 return; 5208 } 5209 5210 /* 5211 * If the IO_CONT flag is set, we need to call the supplied 5212 * function to continue processing the I/O, instead of completing 5213 * the I/O just yet. 5214 */ 5215 if (io->io_hdr.flags & CTL_FLAG_IO_CONT) { 5216 io->scsiio.io_cont(io); 5217 return; 5218 } 5219 5220 ctl_datamove(io); 5221} 5222 5223/* 5224 * SCSI release command. 5225 */ 5226int 5227ctl_scsi_release(struct ctl_scsiio *ctsio) 5228{ 5229 int length, longid, thirdparty_id, resv_id; 5230 struct ctl_softc *ctl_softc; 5231 struct ctl_lun *lun; 5232 uint32_t residx; 5233 5234 length = 0; 5235 resv_id = 0; 5236 5237 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5238 5239 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5240 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5241 ctl_softc = control_softc; 5242 5243 switch (ctsio->cdb[0]) { 5244 case RELEASE_10: { 5245 struct scsi_release_10 *cdb; 5246 5247 cdb = (struct scsi_release_10 *)ctsio->cdb; 5248 5249 if (cdb->byte2 & SR10_LONGID) 5250 longid = 1; 5251 else 5252 thirdparty_id = cdb->thirdparty_id; 5253 5254 resv_id = cdb->resv_id; 5255 length = scsi_2btoul(cdb->length); 5256 break; 5257 } 5258 } 5259 5260 5261 /* 5262 * XXX KDM right now, we only support LUN reservation. We don't 5263 * support 3rd party reservations, or extent reservations, which 5264 * might actually need the parameter list. If we've gotten this 5265 * far, we've got a LUN reservation. Anything else got kicked out 5266 * above. So, according to SPC, ignore the length. 5267 */ 5268 length = 0; 5269 5270 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5271 && (length > 0)) { 5272 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5273 ctsio->kern_data_len = length; 5274 ctsio->kern_total_len = length; 5275 ctsio->kern_data_resid = 0; 5276 ctsio->kern_rel_offset = 0; 5277 ctsio->kern_sg_entries = 0; 5278 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5279 ctsio->be_move_done = ctl_config_move_done; 5280 ctl_datamove((union ctl_io *)ctsio); 5281 5282 return (CTL_RETVAL_COMPLETE); 5283 } 5284 5285 if (length > 0) 5286 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5287 5288 mtx_lock(&lun->lun_lock); 5289 5290 /* 5291 * According to SPC, it is not an error for an intiator to attempt 5292 * to release a reservation on a LUN that isn't reserved, or that 5293 * is reserved by another initiator. The reservation can only be 5294 * released, though, by the initiator who made it or by one of 5295 * several reset type events. 5296 */ 5297 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5298 lun->flags &= ~CTL_LUN_RESERVED; 5299 5300 mtx_unlock(&lun->lun_lock); 5301 5302 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5303 free(ctsio->kern_data_ptr, M_CTL); 5304 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5305 } 5306 5307 ctl_set_success(ctsio); 5308 ctl_done((union ctl_io *)ctsio); 5309 return (CTL_RETVAL_COMPLETE); 5310} 5311 5312int 5313ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5314{ 5315 int extent, thirdparty, longid; 5316 int resv_id, length; 5317 uint64_t thirdparty_id; 5318 struct ctl_softc *ctl_softc; 5319 struct ctl_lun *lun; 5320 uint32_t residx; 5321 5322 extent = 0; 5323 thirdparty = 0; 5324 longid = 0; 5325 resv_id = 0; 5326 length = 0; 5327 thirdparty_id = 0; 5328 5329 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5330 5331 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5332 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5333 ctl_softc = control_softc; 5334 5335 switch (ctsio->cdb[0]) { 5336 case RESERVE_10: { 5337 struct scsi_reserve_10 *cdb; 5338 5339 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 5340 5341 if (cdb->byte2 & SR10_LONGID) 5342 longid = 1; 5343 else 5344 thirdparty_id = cdb->thirdparty_id; 5345 5346 resv_id = cdb->resv_id; 5347 length = scsi_2btoul(cdb->length); 5348 break; 5349 } 5350 } 5351 5352 /* 5353 * XXX KDM right now, we only support LUN reservation. We don't 5354 * support 3rd party reservations, or extent reservations, which 5355 * might actually need the parameter list. If we've gotten this 5356 * far, we've got a LUN reservation. Anything else got kicked out 5357 * above. So, according to SPC, ignore the length. 5358 */ 5359 length = 0; 5360 5361 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5362 && (length > 0)) { 5363 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5364 ctsio->kern_data_len = length; 5365 ctsio->kern_total_len = length; 5366 ctsio->kern_data_resid = 0; 5367 ctsio->kern_rel_offset = 0; 5368 ctsio->kern_sg_entries = 0; 5369 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5370 ctsio->be_move_done = ctl_config_move_done; 5371 ctl_datamove((union ctl_io *)ctsio); 5372 5373 return (CTL_RETVAL_COMPLETE); 5374 } 5375 5376 if (length > 0) 5377 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5378 5379 mtx_lock(&lun->lun_lock); 5380 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5381 ctl_set_reservation_conflict(ctsio); 5382 goto bailout; 5383 } 5384 5385 lun->flags |= CTL_LUN_RESERVED; 5386 lun->res_idx = residx; 5387 5388 ctl_set_success(ctsio); 5389 5390bailout: 5391 mtx_unlock(&lun->lun_lock); 5392 5393 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5394 free(ctsio->kern_data_ptr, M_CTL); 5395 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5396 } 5397 5398 ctl_done((union ctl_io *)ctsio); 5399 return (CTL_RETVAL_COMPLETE); 5400} 5401 5402int 5403ctl_start_stop(struct ctl_scsiio *ctsio) 5404{ 5405 struct scsi_start_stop_unit *cdb; 5406 struct ctl_lun *lun; 5407 struct ctl_softc *ctl_softc; 5408 int retval; 5409 5410 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5411 5412 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5413 ctl_softc = control_softc; 5414 retval = 0; 5415 5416 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5417 5418 /* 5419 * XXX KDM 5420 * We don't support the immediate bit on a stop unit. In order to 5421 * do that, we would need to code up a way to know that a stop is 5422 * pending, and hold off any new commands until it completes, one 5423 * way or another. Then we could accept or reject those commands 5424 * depending on its status. We would almost need to do the reverse 5425 * of what we do below for an immediate start -- return the copy of 5426 * the ctl_io to the FETD with status to send to the host (and to 5427 * free the copy!) and then free the original I/O once the stop 5428 * actually completes. That way, the OOA queue mechanism can work 5429 * to block commands that shouldn't proceed. Another alternative 5430 * would be to put the copy in the queue in place of the original, 5431 * and return the original back to the caller. That could be 5432 * slightly safer.. 5433 */ 5434 if ((cdb->byte2 & SSS_IMMED) 5435 && ((cdb->how & SSS_START) == 0)) { 5436 ctl_set_invalid_field(ctsio, 5437 /*sks_valid*/ 1, 5438 /*command*/ 1, 5439 /*field*/ 1, 5440 /*bit_valid*/ 1, 5441 /*bit*/ 0); 5442 ctl_done((union ctl_io *)ctsio); 5443 return (CTL_RETVAL_COMPLETE); 5444 } 5445 5446 if ((lun->flags & CTL_LUN_PR_RESERVED) 5447 && ((cdb->how & SSS_START)==0)) { 5448 uint32_t residx; 5449 5450 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5451 if (ctl_get_prkey(lun, residx) == 0 5452 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5453 5454 ctl_set_reservation_conflict(ctsio); 5455 ctl_done((union ctl_io *)ctsio); 5456 return (CTL_RETVAL_COMPLETE); 5457 } 5458 } 5459 5460 /* 5461 * If there is no backend on this device, we can't start or stop 5462 * it. In theory we shouldn't get any start/stop commands in the 5463 * first place at this level if the LUN doesn't have a backend. 5464 * That should get stopped by the command decode code. 5465 */ 5466 if (lun->backend == NULL) { 5467 ctl_set_invalid_opcode(ctsio); 5468 ctl_done((union ctl_io *)ctsio); 5469 return (CTL_RETVAL_COMPLETE); 5470 } 5471 5472 /* 5473 * XXX KDM Copan-specific offline behavior. 5474 * Figure out a reasonable way to port this? 5475 */ 5476#ifdef NEEDTOPORT 5477 mtx_lock(&lun->lun_lock); 5478 5479 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5480 && (lun->flags & CTL_LUN_OFFLINE)) { 5481 /* 5482 * If the LUN is offline, and the on/offline bit isn't set, 5483 * reject the start or stop. Otherwise, let it through. 5484 */ 5485 mtx_unlock(&lun->lun_lock); 5486 ctl_set_lun_not_ready(ctsio); 5487 ctl_done((union ctl_io *)ctsio); 5488 } else { 5489 mtx_unlock(&lun->lun_lock); 5490#endif /* NEEDTOPORT */ 5491 /* 5492 * This could be a start or a stop when we're online, 5493 * or a stop/offline or start/online. A start or stop when 5494 * we're offline is covered in the case above. 5495 */ 5496 /* 5497 * In the non-immediate case, we send the request to 5498 * the backend and return status to the user when 5499 * it is done. 5500 * 5501 * In the immediate case, we allocate a new ctl_io 5502 * to hold a copy of the request, and send that to 5503 * the backend. We then set good status on the 5504 * user's request and return it immediately. 5505 */ 5506 if (cdb->byte2 & SSS_IMMED) { 5507 union ctl_io *new_io; 5508 5509 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5510 ctl_copy_io((union ctl_io *)ctsio, new_io); 5511 retval = lun->backend->config_write(new_io); 5512 ctl_set_success(ctsio); 5513 ctl_done((union ctl_io *)ctsio); 5514 } else { 5515 retval = lun->backend->config_write( 5516 (union ctl_io *)ctsio); 5517 } 5518#ifdef NEEDTOPORT 5519 } 5520#endif 5521 return (retval); 5522} 5523 5524/* 5525 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5526 * we don't really do anything with the LBA and length fields if the user 5527 * passes them in. Instead we'll just flush out the cache for the entire 5528 * LUN. 5529 */ 5530int 5531ctl_sync_cache(struct ctl_scsiio *ctsio) 5532{ 5533 struct ctl_lun *lun; 5534 struct ctl_softc *ctl_softc; 5535 uint64_t starting_lba; 5536 uint32_t block_count; 5537 int retval; 5538 5539 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5540 5541 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5542 ctl_softc = control_softc; 5543 retval = 0; 5544 5545 switch (ctsio->cdb[0]) { 5546 case SYNCHRONIZE_CACHE: { 5547 struct scsi_sync_cache *cdb; 5548 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5549 5550 starting_lba = scsi_4btoul(cdb->begin_lba); 5551 block_count = scsi_2btoul(cdb->lb_count); 5552 break; 5553 } 5554 case SYNCHRONIZE_CACHE_16: { 5555 struct scsi_sync_cache_16 *cdb; 5556 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5557 5558 starting_lba = scsi_8btou64(cdb->begin_lba); 5559 block_count = scsi_4btoul(cdb->lb_count); 5560 break; 5561 } 5562 default: 5563 ctl_set_invalid_opcode(ctsio); 5564 ctl_done((union ctl_io *)ctsio); 5565 goto bailout; 5566 break; /* NOTREACHED */ 5567 } 5568 5569 /* 5570 * We check the LBA and length, but don't do anything with them. 5571 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5572 * get flushed. This check will just help satisfy anyone who wants 5573 * to see an error for an out of range LBA. 5574 */ 5575 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5576 ctl_set_lba_out_of_range(ctsio); 5577 ctl_done((union ctl_io *)ctsio); 5578 goto bailout; 5579 } 5580 5581 /* 5582 * If this LUN has no backend, we can't flush the cache anyway. 5583 */ 5584 if (lun->backend == NULL) { 5585 ctl_set_invalid_opcode(ctsio); 5586 ctl_done((union ctl_io *)ctsio); 5587 goto bailout; 5588 } 5589 5590 /* 5591 * Check to see whether we're configured to send the SYNCHRONIZE 5592 * CACHE command directly to the back end. 5593 */ 5594 mtx_lock(&lun->lun_lock); 5595 if ((ctl_softc->flags & CTL_FLAG_REAL_SYNC) 5596 && (++(lun->sync_count) >= lun->sync_interval)) { 5597 lun->sync_count = 0; 5598 mtx_unlock(&lun->lun_lock); 5599 retval = lun->backend->config_write((union ctl_io *)ctsio); 5600 } else { 5601 mtx_unlock(&lun->lun_lock); 5602 ctl_set_success(ctsio); 5603 ctl_done((union ctl_io *)ctsio); 5604 } 5605 5606bailout: 5607 5608 return (retval); 5609} 5610 5611int 5612ctl_format(struct ctl_scsiio *ctsio) 5613{ 5614 struct scsi_format *cdb; 5615 struct ctl_lun *lun; 5616 struct ctl_softc *ctl_softc; 5617 int length, defect_list_len; 5618 5619 CTL_DEBUG_PRINT(("ctl_format\n")); 5620 5621 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5622 ctl_softc = control_softc; 5623 5624 cdb = (struct scsi_format *)ctsio->cdb; 5625 5626 length = 0; 5627 if (cdb->byte2 & SF_FMTDATA) { 5628 if (cdb->byte2 & SF_LONGLIST) 5629 length = sizeof(struct scsi_format_header_long); 5630 else 5631 length = sizeof(struct scsi_format_header_short); 5632 } 5633 5634 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5635 && (length > 0)) { 5636 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5637 ctsio->kern_data_len = length; 5638 ctsio->kern_total_len = length; 5639 ctsio->kern_data_resid = 0; 5640 ctsio->kern_rel_offset = 0; 5641 ctsio->kern_sg_entries = 0; 5642 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5643 ctsio->be_move_done = ctl_config_move_done; 5644 ctl_datamove((union ctl_io *)ctsio); 5645 5646 return (CTL_RETVAL_COMPLETE); 5647 } 5648 5649 defect_list_len = 0; 5650 5651 if (cdb->byte2 & SF_FMTDATA) { 5652 if (cdb->byte2 & SF_LONGLIST) { 5653 struct scsi_format_header_long *header; 5654 5655 header = (struct scsi_format_header_long *) 5656 ctsio->kern_data_ptr; 5657 5658 defect_list_len = scsi_4btoul(header->defect_list_len); 5659 if (defect_list_len != 0) { 5660 ctl_set_invalid_field(ctsio, 5661 /*sks_valid*/ 1, 5662 /*command*/ 0, 5663 /*field*/ 2, 5664 /*bit_valid*/ 0, 5665 /*bit*/ 0); 5666 goto bailout; 5667 } 5668 } else { 5669 struct scsi_format_header_short *header; 5670 5671 header = (struct scsi_format_header_short *) 5672 ctsio->kern_data_ptr; 5673 5674 defect_list_len = scsi_2btoul(header->defect_list_len); 5675 if (defect_list_len != 0) { 5676 ctl_set_invalid_field(ctsio, 5677 /*sks_valid*/ 1, 5678 /*command*/ 0, 5679 /*field*/ 2, 5680 /*bit_valid*/ 0, 5681 /*bit*/ 0); 5682 goto bailout; 5683 } 5684 } 5685 } 5686 5687 /* 5688 * The format command will clear out the "Medium format corrupted" 5689 * status if set by the configuration code. That status is really 5690 * just a way to notify the host that we have lost the media, and 5691 * get them to issue a command that will basically make them think 5692 * they're blowing away the media. 5693 */ 5694 mtx_lock(&lun->lun_lock); 5695 lun->flags &= ~CTL_LUN_INOPERABLE; 5696 mtx_unlock(&lun->lun_lock); 5697 5698 ctl_set_success(ctsio); 5699bailout: 5700 5701 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5702 free(ctsio->kern_data_ptr, M_CTL); 5703 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5704 } 5705 5706 ctl_done((union ctl_io *)ctsio); 5707 return (CTL_RETVAL_COMPLETE); 5708} 5709 5710int 5711ctl_read_buffer(struct ctl_scsiio *ctsio) 5712{ 5713 struct scsi_read_buffer *cdb; 5714 struct ctl_lun *lun; 5715 int buffer_offset, len; 5716 static uint8_t descr[4]; 5717 static uint8_t echo_descr[4] = { 0 }; 5718 5719 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5720 5721 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5722 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5723 5724 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA && 5725 (cdb->byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5726 (cdb->byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5727 ctl_set_invalid_field(ctsio, 5728 /*sks_valid*/ 1, 5729 /*command*/ 1, 5730 /*field*/ 1, 5731 /*bit_valid*/ 1, 5732 /*bit*/ 4); 5733 ctl_done((union ctl_io *)ctsio); 5734 return (CTL_RETVAL_COMPLETE); 5735 } 5736 5737 len = scsi_3btoul(cdb->length); 5738 buffer_offset = scsi_3btoul(cdb->offset); 5739 5740 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5741 ctl_set_invalid_field(ctsio, 5742 /*sks_valid*/ 1, 5743 /*command*/ 1, 5744 /*field*/ 6, 5745 /*bit_valid*/ 0, 5746 /*bit*/ 0); 5747 ctl_done((union ctl_io *)ctsio); 5748 return (CTL_RETVAL_COMPLETE); 5749 } 5750 5751 if ((cdb->byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5752 descr[0] = 0; 5753 scsi_ulto3b(CTL_WRITE_BUFFER_SIZE, &descr[1]); 5754 ctsio->kern_data_ptr = descr; 5755 len = min(len, sizeof(descr)); 5756 } else if ((cdb->byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5757 ctsio->kern_data_ptr = echo_descr; 5758 len = min(len, sizeof(echo_descr)); 5759 } else { 5760 if (lun->write_buffer == NULL) { 5761 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5762 M_CTL, M_WAITOK); 5763 } 5764 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5765 } 5766 ctsio->kern_data_len = len; 5767 ctsio->kern_total_len = len; 5768 ctsio->kern_data_resid = 0; 5769 ctsio->kern_rel_offset = 0; 5770 ctsio->kern_sg_entries = 0; 5771 ctl_set_success(ctsio); 5772 ctsio->be_move_done = ctl_config_move_done; 5773 ctl_datamove((union ctl_io *)ctsio); 5774 return (CTL_RETVAL_COMPLETE); 5775} 5776 5777int 5778ctl_write_buffer(struct ctl_scsiio *ctsio) 5779{ 5780 struct scsi_write_buffer *cdb; 5781 struct ctl_lun *lun; 5782 int buffer_offset, len; 5783 5784 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5785 5786 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5787 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5788 5789 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5790 ctl_set_invalid_field(ctsio, 5791 /*sks_valid*/ 1, 5792 /*command*/ 1, 5793 /*field*/ 1, 5794 /*bit_valid*/ 1, 5795 /*bit*/ 4); 5796 ctl_done((union ctl_io *)ctsio); 5797 return (CTL_RETVAL_COMPLETE); 5798 } 5799 5800 len = scsi_3btoul(cdb->length); 5801 buffer_offset = scsi_3btoul(cdb->offset); 5802 5803 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5804 ctl_set_invalid_field(ctsio, 5805 /*sks_valid*/ 1, 5806 /*command*/ 1, 5807 /*field*/ 6, 5808 /*bit_valid*/ 0, 5809 /*bit*/ 0); 5810 ctl_done((union ctl_io *)ctsio); 5811 return (CTL_RETVAL_COMPLETE); 5812 } 5813 5814 /* 5815 * If we've got a kernel request that hasn't been malloced yet, 5816 * malloc it and tell the caller the data buffer is here. 5817 */ 5818 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5819 if (lun->write_buffer == NULL) { 5820 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5821 M_CTL, M_WAITOK); 5822 } 5823 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5824 ctsio->kern_data_len = len; 5825 ctsio->kern_total_len = len; 5826 ctsio->kern_data_resid = 0; 5827 ctsio->kern_rel_offset = 0; 5828 ctsio->kern_sg_entries = 0; 5829 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5830 ctsio->be_move_done = ctl_config_move_done; 5831 ctl_datamove((union ctl_io *)ctsio); 5832 5833 return (CTL_RETVAL_COMPLETE); 5834 } 5835 5836 ctl_set_success(ctsio); 5837 ctl_done((union ctl_io *)ctsio); 5838 return (CTL_RETVAL_COMPLETE); 5839} 5840 5841int 5842ctl_write_same(struct ctl_scsiio *ctsio) 5843{ 5844 struct ctl_lun *lun; 5845 struct ctl_lba_len_flags *lbalen; 5846 uint64_t lba; 5847 uint32_t num_blocks; 5848 int len, retval; 5849 uint8_t byte2; 5850 5851 retval = CTL_RETVAL_COMPLETE; 5852 5853 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5854 5855 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5856 5857 switch (ctsio->cdb[0]) { 5858 case WRITE_SAME_10: { 5859 struct scsi_write_same_10 *cdb; 5860 5861 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5862 5863 lba = scsi_4btoul(cdb->addr); 5864 num_blocks = scsi_2btoul(cdb->length); 5865 byte2 = cdb->byte2; 5866 break; 5867 } 5868 case WRITE_SAME_16: { 5869 struct scsi_write_same_16 *cdb; 5870 5871 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5872 5873 lba = scsi_8btou64(cdb->addr); 5874 num_blocks = scsi_4btoul(cdb->length); 5875 byte2 = cdb->byte2; 5876 break; 5877 } 5878 default: 5879 /* 5880 * We got a command we don't support. This shouldn't 5881 * happen, commands should be filtered out above us. 5882 */ 5883 ctl_set_invalid_opcode(ctsio); 5884 ctl_done((union ctl_io *)ctsio); 5885 5886 return (CTL_RETVAL_COMPLETE); 5887 break; /* NOTREACHED */ 5888 } 5889 5890 /* NDOB and ANCHOR flags can be used only together with UNMAP */ 5891 if ((byte2 & SWS_UNMAP) == 0 && 5892 (byte2 & (SWS_NDOB | SWS_ANCHOR)) != 0) { 5893 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5894 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5895 ctl_done((union ctl_io *)ctsio); 5896 return (CTL_RETVAL_COMPLETE); 5897 } 5898 5899 /* 5900 * The first check is to make sure we're in bounds, the second 5901 * check is to catch wrap-around problems. If the lba + num blocks 5902 * is less than the lba, then we've wrapped around and the block 5903 * range is invalid anyway. 5904 */ 5905 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5906 || ((lba + num_blocks) < lba)) { 5907 ctl_set_lba_out_of_range(ctsio); 5908 ctl_done((union ctl_io *)ctsio); 5909 return (CTL_RETVAL_COMPLETE); 5910 } 5911 5912 /* Zero number of blocks means "to the last logical block" */ 5913 if (num_blocks == 0) { 5914 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5915 ctl_set_invalid_field(ctsio, 5916 /*sks_valid*/ 0, 5917 /*command*/ 1, 5918 /*field*/ 0, 5919 /*bit_valid*/ 0, 5920 /*bit*/ 0); 5921 ctl_done((union ctl_io *)ctsio); 5922 return (CTL_RETVAL_COMPLETE); 5923 } 5924 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5925 } 5926 5927 len = lun->be_lun->blocksize; 5928 5929 /* 5930 * If we've got a kernel request that hasn't been malloced yet, 5931 * malloc it and tell the caller the data buffer is here. 5932 */ 5933 if ((byte2 & SWS_NDOB) == 0 && 5934 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5935 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5936 ctsio->kern_data_len = len; 5937 ctsio->kern_total_len = len; 5938 ctsio->kern_data_resid = 0; 5939 ctsio->kern_rel_offset = 0; 5940 ctsio->kern_sg_entries = 0; 5941 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5942 ctsio->be_move_done = ctl_config_move_done; 5943 ctl_datamove((union ctl_io *)ctsio); 5944 5945 return (CTL_RETVAL_COMPLETE); 5946 } 5947 5948 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5949 lbalen->lba = lba; 5950 lbalen->len = num_blocks; 5951 lbalen->flags = byte2; 5952 retval = lun->backend->config_write((union ctl_io *)ctsio); 5953 5954 return (retval); 5955} 5956 5957int 5958ctl_unmap(struct ctl_scsiio *ctsio) 5959{ 5960 struct ctl_lun *lun; 5961 struct scsi_unmap *cdb; 5962 struct ctl_ptr_len_flags *ptrlen; 5963 struct scsi_unmap_header *hdr; 5964 struct scsi_unmap_desc *buf, *end, *endnz, *range; 5965 uint64_t lba; 5966 uint32_t num_blocks; 5967 int len, retval; 5968 uint8_t byte2; 5969 5970 retval = CTL_RETVAL_COMPLETE; 5971 5972 CTL_DEBUG_PRINT(("ctl_unmap\n")); 5973 5974 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5975 cdb = (struct scsi_unmap *)ctsio->cdb; 5976 5977 len = scsi_2btoul(cdb->length); 5978 byte2 = cdb->byte2; 5979 5980 /* 5981 * If we've got a kernel request that hasn't been malloced yet, 5982 * malloc it and tell the caller the data buffer is here. 5983 */ 5984 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5985 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5986 ctsio->kern_data_len = len; 5987 ctsio->kern_total_len = len; 5988 ctsio->kern_data_resid = 0; 5989 ctsio->kern_rel_offset = 0; 5990 ctsio->kern_sg_entries = 0; 5991 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5992 ctsio->be_move_done = ctl_config_move_done; 5993 ctl_datamove((union ctl_io *)ctsio); 5994 5995 return (CTL_RETVAL_COMPLETE); 5996 } 5997 5998 len = ctsio->kern_total_len - ctsio->kern_data_resid; 5999 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 6000 if (len < sizeof (*hdr) || 6001 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 6002 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 6003 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 6004 ctl_set_invalid_field(ctsio, 6005 /*sks_valid*/ 0, 6006 /*command*/ 0, 6007 /*field*/ 0, 6008 /*bit_valid*/ 0, 6009 /*bit*/ 0); 6010 goto done; 6011 } 6012 len = scsi_2btoul(hdr->desc_length); 6013 buf = (struct scsi_unmap_desc *)(hdr + 1); 6014 end = buf + len / sizeof(*buf); 6015 6016 endnz = buf; 6017 for (range = buf; range < end; range++) { 6018 lba = scsi_8btou64(range->lba); 6019 num_blocks = scsi_4btoul(range->length); 6020 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 6021 || ((lba + num_blocks) < lba)) { 6022 ctl_set_lba_out_of_range(ctsio); 6023 ctl_done((union ctl_io *)ctsio); 6024 return (CTL_RETVAL_COMPLETE); 6025 } 6026 if (num_blocks != 0) 6027 endnz = range + 1; 6028 } 6029 6030 /* 6031 * Block backend can not handle zero last range. 6032 * Filter it out and return if there is nothing left. 6033 */ 6034 len = (uint8_t *)endnz - (uint8_t *)buf; 6035 if (len == 0) { 6036 ctl_set_success(ctsio); 6037 goto done; 6038 } 6039 6040 mtx_lock(&lun->lun_lock); 6041 ptrlen = (struct ctl_ptr_len_flags *) 6042 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6043 ptrlen->ptr = (void *)buf; 6044 ptrlen->len = len; 6045 ptrlen->flags = byte2; 6046 ctl_check_blocked(lun); 6047 mtx_unlock(&lun->lun_lock); 6048 6049 retval = lun->backend->config_write((union ctl_io *)ctsio); 6050 return (retval); 6051 6052done: 6053 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 6054 free(ctsio->kern_data_ptr, M_CTL); 6055 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 6056 } 6057 ctl_done((union ctl_io *)ctsio); 6058 return (CTL_RETVAL_COMPLETE); 6059} 6060 6061/* 6062 * Note that this function currently doesn't actually do anything inside 6063 * CTL to enforce things if the DQue bit is turned on. 6064 * 6065 * Also note that this function can't be used in the default case, because 6066 * the DQue bit isn't set in the changeable mask for the control mode page 6067 * anyway. This is just here as an example for how to implement a page 6068 * handler, and a placeholder in case we want to allow the user to turn 6069 * tagged queueing on and off. 6070 * 6071 * The D_SENSE bit handling is functional, however, and will turn 6072 * descriptor sense on and off for a given LUN. 6073 */ 6074int 6075ctl_control_page_handler(struct ctl_scsiio *ctsio, 6076 struct ctl_page_index *page_index, uint8_t *page_ptr) 6077{ 6078 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 6079 struct ctl_lun *lun; 6080 struct ctl_softc *softc; 6081 int set_ua; 6082 uint32_t initidx; 6083 6084 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6085 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6086 set_ua = 0; 6087 6088 user_cp = (struct scsi_control_page *)page_ptr; 6089 current_cp = (struct scsi_control_page *) 6090 (page_index->page_data + (page_index->page_len * 6091 CTL_PAGE_CURRENT)); 6092 saved_cp = (struct scsi_control_page *) 6093 (page_index->page_data + (page_index->page_len * 6094 CTL_PAGE_SAVED)); 6095 6096 softc = control_softc; 6097 6098 mtx_lock(&lun->lun_lock); 6099 if (((current_cp->rlec & SCP_DSENSE) == 0) 6100 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 6101 /* 6102 * Descriptor sense is currently turned off and the user 6103 * wants to turn it on. 6104 */ 6105 current_cp->rlec |= SCP_DSENSE; 6106 saved_cp->rlec |= SCP_DSENSE; 6107 lun->flags |= CTL_LUN_SENSE_DESC; 6108 set_ua = 1; 6109 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 6110 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 6111 /* 6112 * Descriptor sense is currently turned on, and the user 6113 * wants to turn it off. 6114 */ 6115 current_cp->rlec &= ~SCP_DSENSE; 6116 saved_cp->rlec &= ~SCP_DSENSE; 6117 lun->flags &= ~CTL_LUN_SENSE_DESC; 6118 set_ua = 1; 6119 } 6120 if ((current_cp->queue_flags & SCP_QUEUE_ALG_MASK) != 6121 (user_cp->queue_flags & SCP_QUEUE_ALG_MASK)) { 6122 current_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6123 current_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6124 saved_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6125 saved_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6126 set_ua = 1; 6127 } 6128 if ((current_cp->eca_and_aen & SCP_SWP) != 6129 (user_cp->eca_and_aen & SCP_SWP)) { 6130 current_cp->eca_and_aen &= ~SCP_SWP; 6131 current_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6132 saved_cp->eca_and_aen &= ~SCP_SWP; 6133 saved_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6134 set_ua = 1; 6135 } 6136 if (set_ua != 0) 6137 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 6138 mtx_unlock(&lun->lun_lock); 6139 6140 return (0); 6141} 6142 6143int 6144ctl_caching_sp_handler(struct ctl_scsiio *ctsio, 6145 struct ctl_page_index *page_index, uint8_t *page_ptr) 6146{ 6147 struct scsi_caching_page *current_cp, *saved_cp, *user_cp; 6148 struct ctl_lun *lun; 6149 int set_ua; 6150 uint32_t initidx; 6151 6152 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6153 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6154 set_ua = 0; 6155 6156 user_cp = (struct scsi_caching_page *)page_ptr; 6157 current_cp = (struct scsi_caching_page *) 6158 (page_index->page_data + (page_index->page_len * 6159 CTL_PAGE_CURRENT)); 6160 saved_cp = (struct scsi_caching_page *) 6161 (page_index->page_data + (page_index->page_len * 6162 CTL_PAGE_SAVED)); 6163 6164 mtx_lock(&lun->lun_lock); 6165 if ((current_cp->flags1 & (SCP_WCE | SCP_RCD)) != 6166 (user_cp->flags1 & (SCP_WCE | SCP_RCD))) { 6167 current_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6168 current_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6169 saved_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6170 saved_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6171 set_ua = 1; 6172 } 6173 if (set_ua != 0) 6174 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 6175 mtx_unlock(&lun->lun_lock); 6176 6177 return (0); 6178} 6179 6180int 6181ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 6182 struct ctl_page_index *page_index, 6183 uint8_t *page_ptr) 6184{ 6185 uint8_t *c; 6186 int i; 6187 6188 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 6189 ctl_time_io_secs = 6190 (c[0] << 8) | 6191 (c[1] << 0) | 6192 0; 6193 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 6194 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 6195 printf("page data:"); 6196 for (i=0; i<8; i++) 6197 printf(" %.2x",page_ptr[i]); 6198 printf("\n"); 6199 return (0); 6200} 6201 6202int 6203ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 6204 struct ctl_page_index *page_index, 6205 int pc) 6206{ 6207 struct copan_debugconf_subpage *page; 6208 6209 page = (struct copan_debugconf_subpage *)page_index->page_data + 6210 (page_index->page_len * pc); 6211 6212 switch (pc) { 6213 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6214 case SMS_PAGE_CTRL_DEFAULT >> 6: 6215 case SMS_PAGE_CTRL_SAVED >> 6: 6216 /* 6217 * We don't update the changable or default bits for this page. 6218 */ 6219 break; 6220 case SMS_PAGE_CTRL_CURRENT >> 6: 6221 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 6222 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 6223 break; 6224 default: 6225#ifdef NEEDTOPORT 6226 EPRINT(0, "Invalid PC %d!!", pc); 6227#endif /* NEEDTOPORT */ 6228 break; 6229 } 6230 return (0); 6231} 6232 6233 6234static int 6235ctl_do_mode_select(union ctl_io *io) 6236{ 6237 struct scsi_mode_page_header *page_header; 6238 struct ctl_page_index *page_index; 6239 struct ctl_scsiio *ctsio; 6240 int control_dev, page_len; 6241 int page_len_offset, page_len_size; 6242 union ctl_modepage_info *modepage_info; 6243 struct ctl_lun *lun; 6244 int *len_left, *len_used; 6245 int retval, i; 6246 6247 ctsio = &io->scsiio; 6248 page_index = NULL; 6249 page_len = 0; 6250 retval = CTL_RETVAL_COMPLETE; 6251 6252 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6253 6254 if (lun->be_lun->lun_type != T_DIRECT) 6255 control_dev = 1; 6256 else 6257 control_dev = 0; 6258 6259 modepage_info = (union ctl_modepage_info *) 6260 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6261 len_left = &modepage_info->header.len_left; 6262 len_used = &modepage_info->header.len_used; 6263 6264do_next_page: 6265 6266 page_header = (struct scsi_mode_page_header *) 6267 (ctsio->kern_data_ptr + *len_used); 6268 6269 if (*len_left == 0) { 6270 free(ctsio->kern_data_ptr, M_CTL); 6271 ctl_set_success(ctsio); 6272 ctl_done((union ctl_io *)ctsio); 6273 return (CTL_RETVAL_COMPLETE); 6274 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6275 6276 free(ctsio->kern_data_ptr, M_CTL); 6277 ctl_set_param_len_error(ctsio); 6278 ctl_done((union ctl_io *)ctsio); 6279 return (CTL_RETVAL_COMPLETE); 6280 6281 } else if ((page_header->page_code & SMPH_SPF) 6282 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6283 6284 free(ctsio->kern_data_ptr, M_CTL); 6285 ctl_set_param_len_error(ctsio); 6286 ctl_done((union ctl_io *)ctsio); 6287 return (CTL_RETVAL_COMPLETE); 6288 } 6289 6290 6291 /* 6292 * XXX KDM should we do something with the block descriptor? 6293 */ 6294 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6295 6296 if ((control_dev != 0) 6297 && (lun->mode_pages.index[i].page_flags & 6298 CTL_PAGE_FLAG_DISK_ONLY)) 6299 continue; 6300 6301 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 6302 (page_header->page_code & SMPH_PC_MASK)) 6303 continue; 6304 6305 /* 6306 * If neither page has a subpage code, then we've got a 6307 * match. 6308 */ 6309 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 6310 && ((page_header->page_code & SMPH_SPF) == 0)) { 6311 page_index = &lun->mode_pages.index[i]; 6312 page_len = page_header->page_length; 6313 break; 6314 } 6315 6316 /* 6317 * If both pages have subpages, then the subpage numbers 6318 * have to match. 6319 */ 6320 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 6321 && (page_header->page_code & SMPH_SPF)) { 6322 struct scsi_mode_page_header_sp *sph; 6323 6324 sph = (struct scsi_mode_page_header_sp *)page_header; 6325 6326 if (lun->mode_pages.index[i].subpage == 6327 sph->subpage) { 6328 page_index = &lun->mode_pages.index[i]; 6329 page_len = scsi_2btoul(sph->page_length); 6330 break; 6331 } 6332 } 6333 } 6334 6335 /* 6336 * If we couldn't find the page, or if we don't have a mode select 6337 * handler for it, send back an error to the user. 6338 */ 6339 if ((page_index == NULL) 6340 || (page_index->select_handler == NULL)) { 6341 ctl_set_invalid_field(ctsio, 6342 /*sks_valid*/ 1, 6343 /*command*/ 0, 6344 /*field*/ *len_used, 6345 /*bit_valid*/ 0, 6346 /*bit*/ 0); 6347 free(ctsio->kern_data_ptr, M_CTL); 6348 ctl_done((union ctl_io *)ctsio); 6349 return (CTL_RETVAL_COMPLETE); 6350 } 6351 6352 if (page_index->page_code & SMPH_SPF) { 6353 page_len_offset = 2; 6354 page_len_size = 2; 6355 } else { 6356 page_len_size = 1; 6357 page_len_offset = 1; 6358 } 6359 6360 /* 6361 * If the length the initiator gives us isn't the one we specify in 6362 * the mode page header, or if they didn't specify enough data in 6363 * the CDB to avoid truncating this page, kick out the request. 6364 */ 6365 if ((page_len != (page_index->page_len - page_len_offset - 6366 page_len_size)) 6367 || (*len_left < page_index->page_len)) { 6368 6369 6370 ctl_set_invalid_field(ctsio, 6371 /*sks_valid*/ 1, 6372 /*command*/ 0, 6373 /*field*/ *len_used + page_len_offset, 6374 /*bit_valid*/ 0, 6375 /*bit*/ 0); 6376 free(ctsio->kern_data_ptr, M_CTL); 6377 ctl_done((union ctl_io *)ctsio); 6378 return (CTL_RETVAL_COMPLETE); 6379 } 6380 6381 /* 6382 * Run through the mode page, checking to make sure that the bits 6383 * the user changed are actually legal for him to change. 6384 */ 6385 for (i = 0; i < page_index->page_len; i++) { 6386 uint8_t *user_byte, *change_mask, *current_byte; 6387 int bad_bit; 6388 int j; 6389 6390 user_byte = (uint8_t *)page_header + i; 6391 change_mask = page_index->page_data + 6392 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6393 current_byte = page_index->page_data + 6394 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6395 6396 /* 6397 * Check to see whether the user set any bits in this byte 6398 * that he is not allowed to set. 6399 */ 6400 if ((*user_byte & ~(*change_mask)) == 6401 (*current_byte & ~(*change_mask))) 6402 continue; 6403 6404 /* 6405 * Go through bit by bit to determine which one is illegal. 6406 */ 6407 bad_bit = 0; 6408 for (j = 7; j >= 0; j--) { 6409 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6410 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6411 bad_bit = i; 6412 break; 6413 } 6414 } 6415 ctl_set_invalid_field(ctsio, 6416 /*sks_valid*/ 1, 6417 /*command*/ 0, 6418 /*field*/ *len_used + i, 6419 /*bit_valid*/ 1, 6420 /*bit*/ bad_bit); 6421 free(ctsio->kern_data_ptr, M_CTL); 6422 ctl_done((union ctl_io *)ctsio); 6423 return (CTL_RETVAL_COMPLETE); 6424 } 6425 6426 /* 6427 * Decrement these before we call the page handler, since we may 6428 * end up getting called back one way or another before the handler 6429 * returns to this context. 6430 */ 6431 *len_left -= page_index->page_len; 6432 *len_used += page_index->page_len; 6433 6434 retval = page_index->select_handler(ctsio, page_index, 6435 (uint8_t *)page_header); 6436 6437 /* 6438 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6439 * wait until this queued command completes to finish processing 6440 * the mode page. If it returns anything other than 6441 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6442 * already set the sense information, freed the data pointer, and 6443 * completed the io for us. 6444 */ 6445 if (retval != CTL_RETVAL_COMPLETE) 6446 goto bailout_no_done; 6447 6448 /* 6449 * If the initiator sent us more than one page, parse the next one. 6450 */ 6451 if (*len_left > 0) 6452 goto do_next_page; 6453 6454 ctl_set_success(ctsio); 6455 free(ctsio->kern_data_ptr, M_CTL); 6456 ctl_done((union ctl_io *)ctsio); 6457 6458bailout_no_done: 6459 6460 return (CTL_RETVAL_COMPLETE); 6461 6462} 6463 6464int 6465ctl_mode_select(struct ctl_scsiio *ctsio) 6466{ 6467 int param_len, pf, sp; 6468 int header_size, bd_len; 6469 int len_left, len_used; 6470 struct ctl_page_index *page_index; 6471 struct ctl_lun *lun; 6472 int control_dev, page_len; 6473 union ctl_modepage_info *modepage_info; 6474 int retval; 6475 6476 pf = 0; 6477 sp = 0; 6478 page_len = 0; 6479 len_used = 0; 6480 len_left = 0; 6481 retval = 0; 6482 bd_len = 0; 6483 page_index = NULL; 6484 6485 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6486 6487 if (lun->be_lun->lun_type != T_DIRECT) 6488 control_dev = 1; 6489 else 6490 control_dev = 0; 6491 6492 switch (ctsio->cdb[0]) { 6493 case MODE_SELECT_6: { 6494 struct scsi_mode_select_6 *cdb; 6495 6496 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6497 6498 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6499 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6500 6501 param_len = cdb->length; 6502 header_size = sizeof(struct scsi_mode_header_6); 6503 break; 6504 } 6505 case MODE_SELECT_10: { 6506 struct scsi_mode_select_10 *cdb; 6507 6508 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6509 6510 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6511 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6512 6513 param_len = scsi_2btoul(cdb->length); 6514 header_size = sizeof(struct scsi_mode_header_10); 6515 break; 6516 } 6517 default: 6518 ctl_set_invalid_opcode(ctsio); 6519 ctl_done((union ctl_io *)ctsio); 6520 return (CTL_RETVAL_COMPLETE); 6521 break; /* NOTREACHED */ 6522 } 6523 6524 /* 6525 * From SPC-3: 6526 * "A parameter list length of zero indicates that the Data-Out Buffer 6527 * shall be empty. This condition shall not be considered as an error." 6528 */ 6529 if (param_len == 0) { 6530 ctl_set_success(ctsio); 6531 ctl_done((union ctl_io *)ctsio); 6532 return (CTL_RETVAL_COMPLETE); 6533 } 6534 6535 /* 6536 * Since we'll hit this the first time through, prior to 6537 * allocation, we don't need to free a data buffer here. 6538 */ 6539 if (param_len < header_size) { 6540 ctl_set_param_len_error(ctsio); 6541 ctl_done((union ctl_io *)ctsio); 6542 return (CTL_RETVAL_COMPLETE); 6543 } 6544 6545 /* 6546 * Allocate the data buffer and grab the user's data. In theory, 6547 * we shouldn't have to sanity check the parameter list length here 6548 * because the maximum size is 64K. We should be able to malloc 6549 * that much without too many problems. 6550 */ 6551 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6552 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6553 ctsio->kern_data_len = param_len; 6554 ctsio->kern_total_len = param_len; 6555 ctsio->kern_data_resid = 0; 6556 ctsio->kern_rel_offset = 0; 6557 ctsio->kern_sg_entries = 0; 6558 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6559 ctsio->be_move_done = ctl_config_move_done; 6560 ctl_datamove((union ctl_io *)ctsio); 6561 6562 return (CTL_RETVAL_COMPLETE); 6563 } 6564 6565 switch (ctsio->cdb[0]) { 6566 case MODE_SELECT_6: { 6567 struct scsi_mode_header_6 *mh6; 6568 6569 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6570 bd_len = mh6->blk_desc_len; 6571 break; 6572 } 6573 case MODE_SELECT_10: { 6574 struct scsi_mode_header_10 *mh10; 6575 6576 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6577 bd_len = scsi_2btoul(mh10->blk_desc_len); 6578 break; 6579 } 6580 default: 6581 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6582 break; 6583 } 6584 6585 if (param_len < (header_size + bd_len)) { 6586 free(ctsio->kern_data_ptr, M_CTL); 6587 ctl_set_param_len_error(ctsio); 6588 ctl_done((union ctl_io *)ctsio); 6589 return (CTL_RETVAL_COMPLETE); 6590 } 6591 6592 /* 6593 * Set the IO_CONT flag, so that if this I/O gets passed to 6594 * ctl_config_write_done(), it'll get passed back to 6595 * ctl_do_mode_select() for further processing, or completion if 6596 * we're all done. 6597 */ 6598 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6599 ctsio->io_cont = ctl_do_mode_select; 6600 6601 modepage_info = (union ctl_modepage_info *) 6602 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6603 6604 memset(modepage_info, 0, sizeof(*modepage_info)); 6605 6606 len_left = param_len - header_size - bd_len; 6607 len_used = header_size + bd_len; 6608 6609 modepage_info->header.len_left = len_left; 6610 modepage_info->header.len_used = len_used; 6611 6612 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6613} 6614 6615int 6616ctl_mode_sense(struct ctl_scsiio *ctsio) 6617{ 6618 struct ctl_lun *lun; 6619 int pc, page_code, dbd, llba, subpage; 6620 int alloc_len, page_len, header_len, total_len; 6621 struct scsi_mode_block_descr *block_desc; 6622 struct ctl_page_index *page_index; 6623 int control_dev; 6624 6625 dbd = 0; 6626 llba = 0; 6627 block_desc = NULL; 6628 page_index = NULL; 6629 6630 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6631 6632 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6633 6634 if (lun->be_lun->lun_type != T_DIRECT) 6635 control_dev = 1; 6636 else 6637 control_dev = 0; 6638 6639 switch (ctsio->cdb[0]) { 6640 case MODE_SENSE_6: { 6641 struct scsi_mode_sense_6 *cdb; 6642 6643 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6644 6645 header_len = sizeof(struct scsi_mode_hdr_6); 6646 if (cdb->byte2 & SMS_DBD) 6647 dbd = 1; 6648 else 6649 header_len += sizeof(struct scsi_mode_block_descr); 6650 6651 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6652 page_code = cdb->page & SMS_PAGE_CODE; 6653 subpage = cdb->subpage; 6654 alloc_len = cdb->length; 6655 break; 6656 } 6657 case MODE_SENSE_10: { 6658 struct scsi_mode_sense_10 *cdb; 6659 6660 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6661 6662 header_len = sizeof(struct scsi_mode_hdr_10); 6663 6664 if (cdb->byte2 & SMS_DBD) 6665 dbd = 1; 6666 else 6667 header_len += sizeof(struct scsi_mode_block_descr); 6668 if (cdb->byte2 & SMS10_LLBAA) 6669 llba = 1; 6670 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6671 page_code = cdb->page & SMS_PAGE_CODE; 6672 subpage = cdb->subpage; 6673 alloc_len = scsi_2btoul(cdb->length); 6674 break; 6675 } 6676 default: 6677 ctl_set_invalid_opcode(ctsio); 6678 ctl_done((union ctl_io *)ctsio); 6679 return (CTL_RETVAL_COMPLETE); 6680 break; /* NOTREACHED */ 6681 } 6682 6683 /* 6684 * We have to make a first pass through to calculate the size of 6685 * the pages that match the user's query. Then we allocate enough 6686 * memory to hold it, and actually copy the data into the buffer. 6687 */ 6688 switch (page_code) { 6689 case SMS_ALL_PAGES_PAGE: { 6690 int i; 6691 6692 page_len = 0; 6693 6694 /* 6695 * At the moment, values other than 0 and 0xff here are 6696 * reserved according to SPC-3. 6697 */ 6698 if ((subpage != SMS_SUBPAGE_PAGE_0) 6699 && (subpage != SMS_SUBPAGE_ALL)) { 6700 ctl_set_invalid_field(ctsio, 6701 /*sks_valid*/ 1, 6702 /*command*/ 1, 6703 /*field*/ 3, 6704 /*bit_valid*/ 0, 6705 /*bit*/ 0); 6706 ctl_done((union ctl_io *)ctsio); 6707 return (CTL_RETVAL_COMPLETE); 6708 } 6709 6710 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6711 if ((control_dev != 0) 6712 && (lun->mode_pages.index[i].page_flags & 6713 CTL_PAGE_FLAG_DISK_ONLY)) 6714 continue; 6715 6716 /* 6717 * We don't use this subpage if the user didn't 6718 * request all subpages. 6719 */ 6720 if ((lun->mode_pages.index[i].subpage != 0) 6721 && (subpage == SMS_SUBPAGE_PAGE_0)) 6722 continue; 6723 6724#if 0 6725 printf("found page %#x len %d\n", 6726 lun->mode_pages.index[i].page_code & 6727 SMPH_PC_MASK, 6728 lun->mode_pages.index[i].page_len); 6729#endif 6730 page_len += lun->mode_pages.index[i].page_len; 6731 } 6732 break; 6733 } 6734 default: { 6735 int i; 6736 6737 page_len = 0; 6738 6739 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6740 /* Look for the right page code */ 6741 if ((lun->mode_pages.index[i].page_code & 6742 SMPH_PC_MASK) != page_code) 6743 continue; 6744 6745 /* Look for the right subpage or the subpage wildcard*/ 6746 if ((lun->mode_pages.index[i].subpage != subpage) 6747 && (subpage != SMS_SUBPAGE_ALL)) 6748 continue; 6749 6750 /* Make sure the page is supported for this dev type */ 6751 if ((control_dev != 0) 6752 && (lun->mode_pages.index[i].page_flags & 6753 CTL_PAGE_FLAG_DISK_ONLY)) 6754 continue; 6755 6756#if 0 6757 printf("found page %#x len %d\n", 6758 lun->mode_pages.index[i].page_code & 6759 SMPH_PC_MASK, 6760 lun->mode_pages.index[i].page_len); 6761#endif 6762 6763 page_len += lun->mode_pages.index[i].page_len; 6764 } 6765 6766 if (page_len == 0) { 6767 ctl_set_invalid_field(ctsio, 6768 /*sks_valid*/ 1, 6769 /*command*/ 1, 6770 /*field*/ 2, 6771 /*bit_valid*/ 1, 6772 /*bit*/ 5); 6773 ctl_done((union ctl_io *)ctsio); 6774 return (CTL_RETVAL_COMPLETE); 6775 } 6776 break; 6777 } 6778 } 6779 6780 total_len = header_len + page_len; 6781#if 0 6782 printf("header_len = %d, page_len = %d, total_len = %d\n", 6783 header_len, page_len, total_len); 6784#endif 6785 6786 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6787 ctsio->kern_sg_entries = 0; 6788 ctsio->kern_data_resid = 0; 6789 ctsio->kern_rel_offset = 0; 6790 if (total_len < alloc_len) { 6791 ctsio->residual = alloc_len - total_len; 6792 ctsio->kern_data_len = total_len; 6793 ctsio->kern_total_len = total_len; 6794 } else { 6795 ctsio->residual = 0; 6796 ctsio->kern_data_len = alloc_len; 6797 ctsio->kern_total_len = alloc_len; 6798 } 6799 6800 switch (ctsio->cdb[0]) { 6801 case MODE_SENSE_6: { 6802 struct scsi_mode_hdr_6 *header; 6803 6804 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6805 6806 header->datalen = ctl_min(total_len - 1, 254); 6807 if (control_dev == 0) { 6808 header->dev_specific = 0x10; /* DPOFUA */ 6809 if ((lun->flags & CTL_LUN_READONLY) || 6810 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6811 .eca_and_aen & SCP_SWP) != 0) 6812 header->dev_specific |= 0x80; /* WP */ 6813 } 6814 if (dbd) 6815 header->block_descr_len = 0; 6816 else 6817 header->block_descr_len = 6818 sizeof(struct scsi_mode_block_descr); 6819 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6820 break; 6821 } 6822 case MODE_SENSE_10: { 6823 struct scsi_mode_hdr_10 *header; 6824 int datalen; 6825 6826 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6827 6828 datalen = ctl_min(total_len - 2, 65533); 6829 scsi_ulto2b(datalen, header->datalen); 6830 if (control_dev == 0) { 6831 header->dev_specific = 0x10; /* DPOFUA */ 6832 if ((lun->flags & CTL_LUN_READONLY) || 6833 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6834 .eca_and_aen & SCP_SWP) != 0) 6835 header->dev_specific |= 0x80; /* WP */ 6836 } 6837 if (dbd) 6838 scsi_ulto2b(0, header->block_descr_len); 6839 else 6840 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 6841 header->block_descr_len); 6842 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6843 break; 6844 } 6845 default: 6846 panic("invalid CDB type %#x", ctsio->cdb[0]); 6847 break; /* NOTREACHED */ 6848 } 6849 6850 /* 6851 * If we've got a disk, use its blocksize in the block 6852 * descriptor. Otherwise, just set it to 0. 6853 */ 6854 if (dbd == 0) { 6855 if (control_dev == 0) 6856 scsi_ulto3b(lun->be_lun->blocksize, 6857 block_desc->block_len); 6858 else 6859 scsi_ulto3b(0, block_desc->block_len); 6860 } 6861 6862 switch (page_code) { 6863 case SMS_ALL_PAGES_PAGE: { 6864 int i, data_used; 6865 6866 data_used = header_len; 6867 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6868 struct ctl_page_index *page_index; 6869 6870 page_index = &lun->mode_pages.index[i]; 6871 6872 if ((control_dev != 0) 6873 && (page_index->page_flags & 6874 CTL_PAGE_FLAG_DISK_ONLY)) 6875 continue; 6876 6877 /* 6878 * We don't use this subpage if the user didn't 6879 * request all subpages. We already checked (above) 6880 * to make sure the user only specified a subpage 6881 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 6882 */ 6883 if ((page_index->subpage != 0) 6884 && (subpage == SMS_SUBPAGE_PAGE_0)) 6885 continue; 6886 6887 /* 6888 * Call the handler, if it exists, to update the 6889 * page to the latest values. 6890 */ 6891 if (page_index->sense_handler != NULL) 6892 page_index->sense_handler(ctsio, page_index,pc); 6893 6894 memcpy(ctsio->kern_data_ptr + data_used, 6895 page_index->page_data + 6896 (page_index->page_len * pc), 6897 page_index->page_len); 6898 data_used += page_index->page_len; 6899 } 6900 break; 6901 } 6902 default: { 6903 int i, data_used; 6904 6905 data_used = header_len; 6906 6907 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6908 struct ctl_page_index *page_index; 6909 6910 page_index = &lun->mode_pages.index[i]; 6911 6912 /* Look for the right page code */ 6913 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6914 continue; 6915 6916 /* Look for the right subpage or the subpage wildcard*/ 6917 if ((page_index->subpage != subpage) 6918 && (subpage != SMS_SUBPAGE_ALL)) 6919 continue; 6920 6921 /* Make sure the page is supported for this dev type */ 6922 if ((control_dev != 0) 6923 && (page_index->page_flags & 6924 CTL_PAGE_FLAG_DISK_ONLY)) 6925 continue; 6926 6927 /* 6928 * Call the handler, if it exists, to update the 6929 * page to the latest values. 6930 */ 6931 if (page_index->sense_handler != NULL) 6932 page_index->sense_handler(ctsio, page_index,pc); 6933 6934 memcpy(ctsio->kern_data_ptr + data_used, 6935 page_index->page_data + 6936 (page_index->page_len * pc), 6937 page_index->page_len); 6938 data_used += page_index->page_len; 6939 } 6940 break; 6941 } 6942 } 6943 6944 ctl_set_success(ctsio); 6945 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6946 ctsio->be_move_done = ctl_config_move_done; 6947 ctl_datamove((union ctl_io *)ctsio); 6948 return (CTL_RETVAL_COMPLETE); 6949} 6950 6951int 6952ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio, 6953 struct ctl_page_index *page_index, 6954 int pc) 6955{ 6956 struct ctl_lun *lun; 6957 struct scsi_log_param_header *phdr; 6958 uint8_t *data; 6959 uint64_t val; 6960 6961 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6962 data = page_index->page_data; 6963 6964 if (lun->backend->lun_attr != NULL && 6965 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksavail")) 6966 != UINT64_MAX) { 6967 phdr = (struct scsi_log_param_header *)data; 6968 scsi_ulto2b(0x0001, phdr->param_code); 6969 phdr->param_control = SLP_LBIN | SLP_LP; 6970 phdr->param_len = 8; 6971 data = (uint8_t *)(phdr + 1); 6972 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6973 data[4] = 0x02; /* per-pool */ 6974 data += phdr->param_len; 6975 } 6976 6977 if (lun->backend->lun_attr != NULL && 6978 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksused")) 6979 != UINT64_MAX) { 6980 phdr = (struct scsi_log_param_header *)data; 6981 scsi_ulto2b(0x0002, phdr->param_code); 6982 phdr->param_control = SLP_LBIN | SLP_LP; 6983 phdr->param_len = 8; 6984 data = (uint8_t *)(phdr + 1); 6985 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6986 data[4] = 0x01; /* per-LUN */ 6987 data += phdr->param_len; 6988 } 6989 6990 if (lun->backend->lun_attr != NULL && 6991 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksavail")) 6992 != UINT64_MAX) { 6993 phdr = (struct scsi_log_param_header *)data; 6994 scsi_ulto2b(0x00f1, phdr->param_code); 6995 phdr->param_control = SLP_LBIN | SLP_LP; 6996 phdr->param_len = 8; 6997 data = (uint8_t *)(phdr + 1); 6998 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6999 data[4] = 0x02; /* per-pool */ 7000 data += phdr->param_len; 7001 } 7002 7003 if (lun->backend->lun_attr != NULL && 7004 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksused")) 7005 != UINT64_MAX) { 7006 phdr = (struct scsi_log_param_header *)data; 7007 scsi_ulto2b(0x00f2, phdr->param_code); 7008 phdr->param_control = SLP_LBIN | SLP_LP; 7009 phdr->param_len = 8; 7010 data = (uint8_t *)(phdr + 1); 7011 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 7012 data[4] = 0x02; /* per-pool */ 7013 data += phdr->param_len; 7014 } 7015 7016 page_index->page_len = data - page_index->page_data; 7017 return (0); 7018} 7019 7020int 7021ctl_log_sense(struct ctl_scsiio *ctsio) 7022{ 7023 struct ctl_lun *lun; 7024 int i, pc, page_code, subpage; 7025 int alloc_len, total_len; 7026 struct ctl_page_index *page_index; 7027 struct scsi_log_sense *cdb; 7028 struct scsi_log_header *header; 7029 7030 CTL_DEBUG_PRINT(("ctl_log_sense\n")); 7031 7032 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7033 cdb = (struct scsi_log_sense *)ctsio->cdb; 7034 pc = (cdb->page & SLS_PAGE_CTRL_MASK) >> 6; 7035 page_code = cdb->page & SLS_PAGE_CODE; 7036 subpage = cdb->subpage; 7037 alloc_len = scsi_2btoul(cdb->length); 7038 7039 page_index = NULL; 7040 for (i = 0; i < CTL_NUM_LOG_PAGES; i++) { 7041 page_index = &lun->log_pages.index[i]; 7042 7043 /* Look for the right page code */ 7044 if ((page_index->page_code & SL_PAGE_CODE) != page_code) 7045 continue; 7046 7047 /* Look for the right subpage or the subpage wildcard*/ 7048 if (page_index->subpage != subpage) 7049 continue; 7050 7051 break; 7052 } 7053 if (i >= CTL_NUM_LOG_PAGES) { 7054 ctl_set_invalid_field(ctsio, 7055 /*sks_valid*/ 1, 7056 /*command*/ 1, 7057 /*field*/ 2, 7058 /*bit_valid*/ 0, 7059 /*bit*/ 0); 7060 ctl_done((union ctl_io *)ctsio); 7061 return (CTL_RETVAL_COMPLETE); 7062 } 7063 7064 total_len = sizeof(struct scsi_log_header) + page_index->page_len; 7065 7066 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7067 ctsio->kern_sg_entries = 0; 7068 ctsio->kern_data_resid = 0; 7069 ctsio->kern_rel_offset = 0; 7070 if (total_len < alloc_len) { 7071 ctsio->residual = alloc_len - total_len; 7072 ctsio->kern_data_len = total_len; 7073 ctsio->kern_total_len = total_len; 7074 } else { 7075 ctsio->residual = 0; 7076 ctsio->kern_data_len = alloc_len; 7077 ctsio->kern_total_len = alloc_len; 7078 } 7079 7080 header = (struct scsi_log_header *)ctsio->kern_data_ptr; 7081 header->page = page_index->page_code; 7082 if (page_index->subpage) { 7083 header->page |= SL_SPF; 7084 header->subpage = page_index->subpage; 7085 } 7086 scsi_ulto2b(page_index->page_len, header->datalen); 7087 7088 /* 7089 * Call the handler, if it exists, to update the 7090 * page to the latest values. 7091 */ 7092 if (page_index->sense_handler != NULL) 7093 page_index->sense_handler(ctsio, page_index, pc); 7094 7095 memcpy(header + 1, page_index->page_data, page_index->page_len); 7096 7097 ctl_set_success(ctsio); 7098 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7099 ctsio->be_move_done = ctl_config_move_done; 7100 ctl_datamove((union ctl_io *)ctsio); 7101 return (CTL_RETVAL_COMPLETE); 7102} 7103 7104int 7105ctl_read_capacity(struct ctl_scsiio *ctsio) 7106{ 7107 struct scsi_read_capacity *cdb; 7108 struct scsi_read_capacity_data *data; 7109 struct ctl_lun *lun; 7110 uint32_t lba; 7111 7112 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 7113 7114 cdb = (struct scsi_read_capacity *)ctsio->cdb; 7115 7116 lba = scsi_4btoul(cdb->addr); 7117 if (((cdb->pmi & SRC_PMI) == 0) 7118 && (lba != 0)) { 7119 ctl_set_invalid_field(/*ctsio*/ ctsio, 7120 /*sks_valid*/ 1, 7121 /*command*/ 1, 7122 /*field*/ 2, 7123 /*bit_valid*/ 0, 7124 /*bit*/ 0); 7125 ctl_done((union ctl_io *)ctsio); 7126 return (CTL_RETVAL_COMPLETE); 7127 } 7128 7129 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7130 7131 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7132 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 7133 ctsio->residual = 0; 7134 ctsio->kern_data_len = sizeof(*data); 7135 ctsio->kern_total_len = sizeof(*data); 7136 ctsio->kern_data_resid = 0; 7137 ctsio->kern_rel_offset = 0; 7138 ctsio->kern_sg_entries = 0; 7139 7140 /* 7141 * If the maximum LBA is greater than 0xfffffffe, the user must 7142 * issue a SERVICE ACTION IN (16) command, with the read capacity 7143 * serivce action set. 7144 */ 7145 if (lun->be_lun->maxlba > 0xfffffffe) 7146 scsi_ulto4b(0xffffffff, data->addr); 7147 else 7148 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 7149 7150 /* 7151 * XXX KDM this may not be 512 bytes... 7152 */ 7153 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7154 7155 ctl_set_success(ctsio); 7156 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7157 ctsio->be_move_done = ctl_config_move_done; 7158 ctl_datamove((union ctl_io *)ctsio); 7159 return (CTL_RETVAL_COMPLETE); 7160} 7161 7162int 7163ctl_read_capacity_16(struct ctl_scsiio *ctsio) 7164{ 7165 struct scsi_read_capacity_16 *cdb; 7166 struct scsi_read_capacity_data_long *data; 7167 struct ctl_lun *lun; 7168 uint64_t lba; 7169 uint32_t alloc_len; 7170 7171 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 7172 7173 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 7174 7175 alloc_len = scsi_4btoul(cdb->alloc_len); 7176 lba = scsi_8btou64(cdb->addr); 7177 7178 if ((cdb->reladr & SRC16_PMI) 7179 && (lba != 0)) { 7180 ctl_set_invalid_field(/*ctsio*/ ctsio, 7181 /*sks_valid*/ 1, 7182 /*command*/ 1, 7183 /*field*/ 2, 7184 /*bit_valid*/ 0, 7185 /*bit*/ 0); 7186 ctl_done((union ctl_io *)ctsio); 7187 return (CTL_RETVAL_COMPLETE); 7188 } 7189 7190 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7191 7192 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7193 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 7194 7195 if (sizeof(*data) < alloc_len) { 7196 ctsio->residual = alloc_len - sizeof(*data); 7197 ctsio->kern_data_len = sizeof(*data); 7198 ctsio->kern_total_len = sizeof(*data); 7199 } else { 7200 ctsio->residual = 0; 7201 ctsio->kern_data_len = alloc_len; 7202 ctsio->kern_total_len = alloc_len; 7203 } 7204 ctsio->kern_data_resid = 0; 7205 ctsio->kern_rel_offset = 0; 7206 ctsio->kern_sg_entries = 0; 7207 7208 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7209 /* XXX KDM this may not be 512 bytes... */ 7210 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7211 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7212 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7213 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7214 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 7215 7216 ctl_set_success(ctsio); 7217 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7218 ctsio->be_move_done = ctl_config_move_done; 7219 ctl_datamove((union ctl_io *)ctsio); 7220 return (CTL_RETVAL_COMPLETE); 7221} 7222 7223int 7224ctl_get_lba_status(struct ctl_scsiio *ctsio) 7225{ 7226 struct scsi_get_lba_status *cdb; 7227 struct scsi_get_lba_status_data *data; 7228 struct ctl_lun *lun; 7229 struct ctl_lba_len_flags *lbalen; 7230 uint64_t lba; 7231 uint32_t alloc_len, total_len; 7232 int retval; 7233 7234 CTL_DEBUG_PRINT(("ctl_get_lba_status\n")); 7235 7236 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7237 cdb = (struct scsi_get_lba_status *)ctsio->cdb; 7238 lba = scsi_8btou64(cdb->addr); 7239 alloc_len = scsi_4btoul(cdb->alloc_len); 7240 7241 if (lba > lun->be_lun->maxlba) { 7242 ctl_set_lba_out_of_range(ctsio); 7243 ctl_done((union ctl_io *)ctsio); 7244 return (CTL_RETVAL_COMPLETE); 7245 } 7246 7247 total_len = sizeof(*data) + sizeof(data->descr[0]); 7248 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7249 data = (struct scsi_get_lba_status_data *)ctsio->kern_data_ptr; 7250 7251 if (total_len < alloc_len) { 7252 ctsio->residual = alloc_len - total_len; 7253 ctsio->kern_data_len = total_len; 7254 ctsio->kern_total_len = total_len; 7255 } else { 7256 ctsio->residual = 0; 7257 ctsio->kern_data_len = alloc_len; 7258 ctsio->kern_total_len = alloc_len; 7259 } 7260 ctsio->kern_data_resid = 0; 7261 ctsio->kern_rel_offset = 0; 7262 ctsio->kern_sg_entries = 0; 7263 7264 /* Fill dummy data in case backend can't tell anything. */ 7265 scsi_ulto4b(4 + sizeof(data->descr[0]), data->length); 7266 scsi_u64to8b(lba, data->descr[0].addr); 7267 scsi_ulto4b(MIN(UINT32_MAX, lun->be_lun->maxlba + 1 - lba), 7268 data->descr[0].length); 7269 data->descr[0].status = 0; /* Mapped or unknown. */ 7270 7271 ctl_set_success(ctsio); 7272 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7273 ctsio->be_move_done = ctl_config_move_done; 7274 7275 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 7276 lbalen->lba = lba; 7277 lbalen->len = total_len; 7278 lbalen->flags = 0; 7279 retval = lun->backend->config_read((union ctl_io *)ctsio); 7280 return (CTL_RETVAL_COMPLETE); 7281} 7282 7283int 7284ctl_read_defect(struct ctl_scsiio *ctsio) 7285{ 7286 struct scsi_read_defect_data_10 *ccb10; 7287 struct scsi_read_defect_data_12 *ccb12; 7288 struct scsi_read_defect_data_hdr_10 *data10; 7289 struct scsi_read_defect_data_hdr_12 *data12; 7290 uint32_t alloc_len, data_len; 7291 uint8_t format; 7292 7293 CTL_DEBUG_PRINT(("ctl_read_defect\n")); 7294 7295 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7296 ccb10 = (struct scsi_read_defect_data_10 *)&ctsio->cdb; 7297 format = ccb10->format; 7298 alloc_len = scsi_2btoul(ccb10->alloc_length); 7299 data_len = sizeof(*data10); 7300 } else { 7301 ccb12 = (struct scsi_read_defect_data_12 *)&ctsio->cdb; 7302 format = ccb12->format; 7303 alloc_len = scsi_4btoul(ccb12->alloc_length); 7304 data_len = sizeof(*data12); 7305 } 7306 if (alloc_len == 0) { 7307 ctl_set_success(ctsio); 7308 ctl_done((union ctl_io *)ctsio); 7309 return (CTL_RETVAL_COMPLETE); 7310 } 7311 7312 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 7313 if (data_len < alloc_len) { 7314 ctsio->residual = alloc_len - data_len; 7315 ctsio->kern_data_len = data_len; 7316 ctsio->kern_total_len = data_len; 7317 } else { 7318 ctsio->residual = 0; 7319 ctsio->kern_data_len = alloc_len; 7320 ctsio->kern_total_len = alloc_len; 7321 } 7322 ctsio->kern_data_resid = 0; 7323 ctsio->kern_rel_offset = 0; 7324 ctsio->kern_sg_entries = 0; 7325 7326 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7327 data10 = (struct scsi_read_defect_data_hdr_10 *) 7328 ctsio->kern_data_ptr; 7329 data10->format = format; 7330 scsi_ulto2b(0, data10->length); 7331 } else { 7332 data12 = (struct scsi_read_defect_data_hdr_12 *) 7333 ctsio->kern_data_ptr; 7334 data12->format = format; 7335 scsi_ulto2b(0, data12->generation); 7336 scsi_ulto4b(0, data12->length); 7337 } 7338 7339 ctl_set_success(ctsio); 7340 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7341 ctsio->be_move_done = ctl_config_move_done; 7342 ctl_datamove((union ctl_io *)ctsio); 7343 return (CTL_RETVAL_COMPLETE); 7344} 7345 7346int 7347ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7348{ 7349 struct scsi_maintenance_in *cdb; 7350 int retval; 7351 int alloc_len, ext, total_len = 0, g, p, pc, pg, gs, os; 7352 int num_target_port_groups, num_target_ports; 7353 struct ctl_lun *lun; 7354 struct ctl_softc *softc; 7355 struct ctl_port *port; 7356 struct scsi_target_group_data *rtg_ptr; 7357 struct scsi_target_group_data_extended *rtg_ext_ptr; 7358 struct scsi_target_port_group_descriptor *tpg_desc; 7359 7360 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7361 7362 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7363 softc = control_softc; 7364 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7365 7366 retval = CTL_RETVAL_COMPLETE; 7367 7368 switch (cdb->byte2 & STG_PDF_MASK) { 7369 case STG_PDF_LENGTH: 7370 ext = 0; 7371 break; 7372 case STG_PDF_EXTENDED: 7373 ext = 1; 7374 break; 7375 default: 7376 ctl_set_invalid_field(/*ctsio*/ ctsio, 7377 /*sks_valid*/ 1, 7378 /*command*/ 1, 7379 /*field*/ 2, 7380 /*bit_valid*/ 1, 7381 /*bit*/ 5); 7382 ctl_done((union ctl_io *)ctsio); 7383 return(retval); 7384 } 7385 7386 if (softc->is_single) 7387 num_target_port_groups = 1; 7388 else 7389 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7390 num_target_ports = 0; 7391 mtx_lock(&softc->ctl_lock); 7392 STAILQ_FOREACH(port, &softc->port_list, links) { 7393 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7394 continue; 7395 if (ctl_map_lun_back(port->targ_port, lun->lun) >= CTL_MAX_LUNS) 7396 continue; 7397 num_target_ports++; 7398 } 7399 mtx_unlock(&softc->ctl_lock); 7400 7401 if (ext) 7402 total_len = sizeof(struct scsi_target_group_data_extended); 7403 else 7404 total_len = sizeof(struct scsi_target_group_data); 7405 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7406 num_target_port_groups + 7407 sizeof(struct scsi_target_port_descriptor) * 7408 num_target_ports * num_target_port_groups; 7409 7410 alloc_len = scsi_4btoul(cdb->length); 7411 7412 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7413 7414 ctsio->kern_sg_entries = 0; 7415 7416 if (total_len < alloc_len) { 7417 ctsio->residual = alloc_len - total_len; 7418 ctsio->kern_data_len = total_len; 7419 ctsio->kern_total_len = total_len; 7420 } else { 7421 ctsio->residual = 0; 7422 ctsio->kern_data_len = alloc_len; 7423 ctsio->kern_total_len = alloc_len; 7424 } 7425 ctsio->kern_data_resid = 0; 7426 ctsio->kern_rel_offset = 0; 7427 7428 if (ext) { 7429 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7430 ctsio->kern_data_ptr; 7431 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7432 rtg_ext_ptr->format_type = 0x10; 7433 rtg_ext_ptr->implicit_transition_time = 0; 7434 tpg_desc = &rtg_ext_ptr->groups[0]; 7435 } else { 7436 rtg_ptr = (struct scsi_target_group_data *) 7437 ctsio->kern_data_ptr; 7438 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7439 tpg_desc = &rtg_ptr->groups[0]; 7440 } 7441 7442 mtx_lock(&softc->ctl_lock); 7443 pg = softc->port_offset / CTL_MAX_PORTS; 7444 if (softc->flags & CTL_FLAG_ACTIVE_SHELF) { 7445 if (softc->ha_mode == CTL_HA_MODE_ACT_STBY) { 7446 gs = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7447 os = TPG_ASYMMETRIC_ACCESS_STANDBY; 7448 } else if (lun->flags & CTL_LUN_PRIMARY_SC) { 7449 gs = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7450 os = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7451 } else { 7452 gs = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7453 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7454 } 7455 } else { 7456 gs = TPG_ASYMMETRIC_ACCESS_STANDBY; 7457 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7458 } 7459 for (g = 0; g < num_target_port_groups; g++) { 7460 tpg_desc->pref_state = (g == pg) ? gs : os; 7461 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP; 7462 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7463 tpg_desc->status = TPG_IMPLICIT; 7464 pc = 0; 7465 STAILQ_FOREACH(port, &softc->port_list, links) { 7466 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7467 continue; 7468 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 7469 CTL_MAX_LUNS) 7470 continue; 7471 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 7472 scsi_ulto2b(p, tpg_desc->descriptors[pc]. 7473 relative_target_port_identifier); 7474 pc++; 7475 } 7476 tpg_desc->target_port_count = pc; 7477 tpg_desc = (struct scsi_target_port_group_descriptor *) 7478 &tpg_desc->descriptors[pc]; 7479 } 7480 mtx_unlock(&softc->ctl_lock); 7481 7482 ctl_set_success(ctsio); 7483 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7484 ctsio->be_move_done = ctl_config_move_done; 7485 ctl_datamove((union ctl_io *)ctsio); 7486 return(retval); 7487} 7488 7489int 7490ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7491{ 7492 struct ctl_lun *lun; 7493 struct scsi_report_supported_opcodes *cdb; 7494 const struct ctl_cmd_entry *entry, *sentry; 7495 struct scsi_report_supported_opcodes_all *all; 7496 struct scsi_report_supported_opcodes_descr *descr; 7497 struct scsi_report_supported_opcodes_one *one; 7498 int retval; 7499 int alloc_len, total_len; 7500 int opcode, service_action, i, j, num; 7501 7502 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7503 7504 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7505 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7506 7507 retval = CTL_RETVAL_COMPLETE; 7508 7509 opcode = cdb->requested_opcode; 7510 service_action = scsi_2btoul(cdb->requested_service_action); 7511 switch (cdb->options & RSO_OPTIONS_MASK) { 7512 case RSO_OPTIONS_ALL: 7513 num = 0; 7514 for (i = 0; i < 256; i++) { 7515 entry = &ctl_cmd_table[i]; 7516 if (entry->flags & CTL_CMD_FLAG_SA5) { 7517 for (j = 0; j < 32; j++) { 7518 sentry = &((const struct ctl_cmd_entry *) 7519 entry->execute)[j]; 7520 if (ctl_cmd_applicable( 7521 lun->be_lun->lun_type, sentry)) 7522 num++; 7523 } 7524 } else { 7525 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7526 entry)) 7527 num++; 7528 } 7529 } 7530 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7531 num * sizeof(struct scsi_report_supported_opcodes_descr); 7532 break; 7533 case RSO_OPTIONS_OC: 7534 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7535 ctl_set_invalid_field(/*ctsio*/ ctsio, 7536 /*sks_valid*/ 1, 7537 /*command*/ 1, 7538 /*field*/ 2, 7539 /*bit_valid*/ 1, 7540 /*bit*/ 2); 7541 ctl_done((union ctl_io *)ctsio); 7542 return (CTL_RETVAL_COMPLETE); 7543 } 7544 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7545 break; 7546 case RSO_OPTIONS_OC_SA: 7547 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7548 service_action >= 32) { 7549 ctl_set_invalid_field(/*ctsio*/ ctsio, 7550 /*sks_valid*/ 1, 7551 /*command*/ 1, 7552 /*field*/ 2, 7553 /*bit_valid*/ 1, 7554 /*bit*/ 2); 7555 ctl_done((union ctl_io *)ctsio); 7556 return (CTL_RETVAL_COMPLETE); 7557 } 7558 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7559 break; 7560 default: 7561 ctl_set_invalid_field(/*ctsio*/ ctsio, 7562 /*sks_valid*/ 1, 7563 /*command*/ 1, 7564 /*field*/ 2, 7565 /*bit_valid*/ 1, 7566 /*bit*/ 2); 7567 ctl_done((union ctl_io *)ctsio); 7568 return (CTL_RETVAL_COMPLETE); 7569 } 7570 7571 alloc_len = scsi_4btoul(cdb->length); 7572 7573 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7574 7575 ctsio->kern_sg_entries = 0; 7576 7577 if (total_len < alloc_len) { 7578 ctsio->residual = alloc_len - total_len; 7579 ctsio->kern_data_len = total_len; 7580 ctsio->kern_total_len = total_len; 7581 } else { 7582 ctsio->residual = 0; 7583 ctsio->kern_data_len = alloc_len; 7584 ctsio->kern_total_len = alloc_len; 7585 } 7586 ctsio->kern_data_resid = 0; 7587 ctsio->kern_rel_offset = 0; 7588 7589 switch (cdb->options & RSO_OPTIONS_MASK) { 7590 case RSO_OPTIONS_ALL: 7591 all = (struct scsi_report_supported_opcodes_all *) 7592 ctsio->kern_data_ptr; 7593 num = 0; 7594 for (i = 0; i < 256; i++) { 7595 entry = &ctl_cmd_table[i]; 7596 if (entry->flags & CTL_CMD_FLAG_SA5) { 7597 for (j = 0; j < 32; j++) { 7598 sentry = &((const struct ctl_cmd_entry *) 7599 entry->execute)[j]; 7600 if (!ctl_cmd_applicable( 7601 lun->be_lun->lun_type, sentry)) 7602 continue; 7603 descr = &all->descr[num++]; 7604 descr->opcode = i; 7605 scsi_ulto2b(j, descr->service_action); 7606 descr->flags = RSO_SERVACTV; 7607 scsi_ulto2b(sentry->length, 7608 descr->cdb_length); 7609 } 7610 } else { 7611 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7612 entry)) 7613 continue; 7614 descr = &all->descr[num++]; 7615 descr->opcode = i; 7616 scsi_ulto2b(0, descr->service_action); 7617 descr->flags = 0; 7618 scsi_ulto2b(entry->length, descr->cdb_length); 7619 } 7620 } 7621 scsi_ulto4b( 7622 num * sizeof(struct scsi_report_supported_opcodes_descr), 7623 all->length); 7624 break; 7625 case RSO_OPTIONS_OC: 7626 one = (struct scsi_report_supported_opcodes_one *) 7627 ctsio->kern_data_ptr; 7628 entry = &ctl_cmd_table[opcode]; 7629 goto fill_one; 7630 case RSO_OPTIONS_OC_SA: 7631 one = (struct scsi_report_supported_opcodes_one *) 7632 ctsio->kern_data_ptr; 7633 entry = &ctl_cmd_table[opcode]; 7634 entry = &((const struct ctl_cmd_entry *) 7635 entry->execute)[service_action]; 7636fill_one: 7637 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7638 one->support = 3; 7639 scsi_ulto2b(entry->length, one->cdb_length); 7640 one->cdb_usage[0] = opcode; 7641 memcpy(&one->cdb_usage[1], entry->usage, 7642 entry->length - 1); 7643 } else 7644 one->support = 1; 7645 break; 7646 } 7647 7648 ctl_set_success(ctsio); 7649 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7650 ctsio->be_move_done = ctl_config_move_done; 7651 ctl_datamove((union ctl_io *)ctsio); 7652 return(retval); 7653} 7654 7655int 7656ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7657{ 7658 struct scsi_report_supported_tmf *cdb; 7659 struct scsi_report_supported_tmf_data *data; 7660 int retval; 7661 int alloc_len, total_len; 7662 7663 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7664 7665 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7666 7667 retval = CTL_RETVAL_COMPLETE; 7668 7669 total_len = sizeof(struct scsi_report_supported_tmf_data); 7670 alloc_len = scsi_4btoul(cdb->length); 7671 7672 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7673 7674 ctsio->kern_sg_entries = 0; 7675 7676 if (total_len < alloc_len) { 7677 ctsio->residual = alloc_len - total_len; 7678 ctsio->kern_data_len = total_len; 7679 ctsio->kern_total_len = total_len; 7680 } else { 7681 ctsio->residual = 0; 7682 ctsio->kern_data_len = alloc_len; 7683 ctsio->kern_total_len = alloc_len; 7684 } 7685 ctsio->kern_data_resid = 0; 7686 ctsio->kern_rel_offset = 0; 7687 7688 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7689 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_TRS; 7690 data->byte2 |= RST_ITNRS; 7691 7692 ctl_set_success(ctsio); 7693 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7694 ctsio->be_move_done = ctl_config_move_done; 7695 ctl_datamove((union ctl_io *)ctsio); 7696 return (retval); 7697} 7698 7699int 7700ctl_report_timestamp(struct ctl_scsiio *ctsio) 7701{ 7702 struct scsi_report_timestamp *cdb; 7703 struct scsi_report_timestamp_data *data; 7704 struct timeval tv; 7705 int64_t timestamp; 7706 int retval; 7707 int alloc_len, total_len; 7708 7709 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7710 7711 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7712 7713 retval = CTL_RETVAL_COMPLETE; 7714 7715 total_len = sizeof(struct scsi_report_timestamp_data); 7716 alloc_len = scsi_4btoul(cdb->length); 7717 7718 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7719 7720 ctsio->kern_sg_entries = 0; 7721 7722 if (total_len < alloc_len) { 7723 ctsio->residual = alloc_len - total_len; 7724 ctsio->kern_data_len = total_len; 7725 ctsio->kern_total_len = total_len; 7726 } else { 7727 ctsio->residual = 0; 7728 ctsio->kern_data_len = alloc_len; 7729 ctsio->kern_total_len = alloc_len; 7730 } 7731 ctsio->kern_data_resid = 0; 7732 ctsio->kern_rel_offset = 0; 7733 7734 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7735 scsi_ulto2b(sizeof(*data) - 2, data->length); 7736 data->origin = RTS_ORIG_OUTSIDE; 7737 getmicrotime(&tv); 7738 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7739 scsi_ulto4b(timestamp >> 16, data->timestamp); 7740 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7741 7742 ctl_set_success(ctsio); 7743 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7744 ctsio->be_move_done = ctl_config_move_done; 7745 ctl_datamove((union ctl_io *)ctsio); 7746 return (retval); 7747} 7748 7749int 7750ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7751{ 7752 struct scsi_per_res_in *cdb; 7753 int alloc_len, total_len = 0; 7754 /* struct scsi_per_res_in_rsrv in_data; */ 7755 struct ctl_lun *lun; 7756 struct ctl_softc *softc; 7757 uint64_t key; 7758 7759 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7760 7761 softc = control_softc; 7762 7763 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7764 7765 alloc_len = scsi_2btoul(cdb->length); 7766 7767 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7768 7769retry: 7770 mtx_lock(&lun->lun_lock); 7771 switch (cdb->action) { 7772 case SPRI_RK: /* read keys */ 7773 total_len = sizeof(struct scsi_per_res_in_keys) + 7774 lun->pr_key_count * 7775 sizeof(struct scsi_per_res_key); 7776 break; 7777 case SPRI_RR: /* read reservation */ 7778 if (lun->flags & CTL_LUN_PR_RESERVED) 7779 total_len = sizeof(struct scsi_per_res_in_rsrv); 7780 else 7781 total_len = sizeof(struct scsi_per_res_in_header); 7782 break; 7783 case SPRI_RC: /* report capabilities */ 7784 total_len = sizeof(struct scsi_per_res_cap); 7785 break; 7786 case SPRI_RS: /* read full status */ 7787 total_len = sizeof(struct scsi_per_res_in_header) + 7788 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7789 lun->pr_key_count; 7790 break; 7791 default: 7792 panic("Invalid PR type %x", cdb->action); 7793 } 7794 mtx_unlock(&lun->lun_lock); 7795 7796 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7797 7798 if (total_len < alloc_len) { 7799 ctsio->residual = alloc_len - total_len; 7800 ctsio->kern_data_len = total_len; 7801 ctsio->kern_total_len = total_len; 7802 } else { 7803 ctsio->residual = 0; 7804 ctsio->kern_data_len = alloc_len; 7805 ctsio->kern_total_len = alloc_len; 7806 } 7807 7808 ctsio->kern_data_resid = 0; 7809 ctsio->kern_rel_offset = 0; 7810 ctsio->kern_sg_entries = 0; 7811 7812 mtx_lock(&lun->lun_lock); 7813 switch (cdb->action) { 7814 case SPRI_RK: { // read keys 7815 struct scsi_per_res_in_keys *res_keys; 7816 int i, key_count; 7817 7818 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7819 7820 /* 7821 * We had to drop the lock to allocate our buffer, which 7822 * leaves time for someone to come in with another 7823 * persistent reservation. (That is unlikely, though, 7824 * since this should be the only persistent reservation 7825 * command active right now.) 7826 */ 7827 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7828 (lun->pr_key_count * 7829 sizeof(struct scsi_per_res_key)))){ 7830 mtx_unlock(&lun->lun_lock); 7831 free(ctsio->kern_data_ptr, M_CTL); 7832 printf("%s: reservation length changed, retrying\n", 7833 __func__); 7834 goto retry; 7835 } 7836 7837 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7838 7839 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7840 lun->pr_key_count, res_keys->header.length); 7841 7842 for (i = 0, key_count = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7843 if ((key = ctl_get_prkey(lun, i)) == 0) 7844 continue; 7845 7846 /* 7847 * We used lun->pr_key_count to calculate the 7848 * size to allocate. If it turns out the number of 7849 * initiators with the registered flag set is 7850 * larger than that (i.e. they haven't been kept in 7851 * sync), we've got a problem. 7852 */ 7853 if (key_count >= lun->pr_key_count) { 7854#ifdef NEEDTOPORT 7855 csevent_log(CSC_CTL | CSC_SHELF_SW | 7856 CTL_PR_ERROR, 7857 csevent_LogType_Fault, 7858 csevent_AlertLevel_Yellow, 7859 csevent_FRU_ShelfController, 7860 csevent_FRU_Firmware, 7861 csevent_FRU_Unknown, 7862 "registered keys %d >= key " 7863 "count %d", key_count, 7864 lun->pr_key_count); 7865#endif 7866 key_count++; 7867 continue; 7868 } 7869 scsi_u64to8b(key, res_keys->keys[key_count].key); 7870 key_count++; 7871 } 7872 break; 7873 } 7874 case SPRI_RR: { // read reservation 7875 struct scsi_per_res_in_rsrv *res; 7876 int tmp_len, header_only; 7877 7878 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7879 7880 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7881 7882 if (lun->flags & CTL_LUN_PR_RESERVED) 7883 { 7884 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7885 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7886 res->header.length); 7887 header_only = 0; 7888 } else { 7889 tmp_len = sizeof(struct scsi_per_res_in_header); 7890 scsi_ulto4b(0, res->header.length); 7891 header_only = 1; 7892 } 7893 7894 /* 7895 * We had to drop the lock to allocate our buffer, which 7896 * leaves time for someone to come in with another 7897 * persistent reservation. (That is unlikely, though, 7898 * since this should be the only persistent reservation 7899 * command active right now.) 7900 */ 7901 if (tmp_len != total_len) { 7902 mtx_unlock(&lun->lun_lock); 7903 free(ctsio->kern_data_ptr, M_CTL); 7904 printf("%s: reservation status changed, retrying\n", 7905 __func__); 7906 goto retry; 7907 } 7908 7909 /* 7910 * No reservation held, so we're done. 7911 */ 7912 if (header_only != 0) 7913 break; 7914 7915 /* 7916 * If the registration is an All Registrants type, the key 7917 * is 0, since it doesn't really matter. 7918 */ 7919 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7920 scsi_u64to8b(ctl_get_prkey(lun, lun->pr_res_idx), 7921 res->data.reservation); 7922 } 7923 res->data.scopetype = lun->res_type; 7924 break; 7925 } 7926 case SPRI_RC: //report capabilities 7927 { 7928 struct scsi_per_res_cap *res_cap; 7929 uint16_t type_mask; 7930 7931 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7932 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7933 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_5; 7934 type_mask = SPRI_TM_WR_EX_AR | 7935 SPRI_TM_EX_AC_RO | 7936 SPRI_TM_WR_EX_RO | 7937 SPRI_TM_EX_AC | 7938 SPRI_TM_WR_EX | 7939 SPRI_TM_EX_AC_AR; 7940 scsi_ulto2b(type_mask, res_cap->type_mask); 7941 break; 7942 } 7943 case SPRI_RS: { // read full status 7944 struct scsi_per_res_in_full *res_status; 7945 struct scsi_per_res_in_full_desc *res_desc; 7946 struct ctl_port *port; 7947 int i, len; 7948 7949 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7950 7951 /* 7952 * We had to drop the lock to allocate our buffer, which 7953 * leaves time for someone to come in with another 7954 * persistent reservation. (That is unlikely, though, 7955 * since this should be the only persistent reservation 7956 * command active right now.) 7957 */ 7958 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7959 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7960 lun->pr_key_count)){ 7961 mtx_unlock(&lun->lun_lock); 7962 free(ctsio->kern_data_ptr, M_CTL); 7963 printf("%s: reservation length changed, retrying\n", 7964 __func__); 7965 goto retry; 7966 } 7967 7968 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 7969 7970 res_desc = &res_status->desc[0]; 7971 for (i = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7972 if ((key = ctl_get_prkey(lun, i)) == 0) 7973 continue; 7974 7975 scsi_u64to8b(key, res_desc->res_key.key); 7976 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7977 (lun->pr_res_idx == i || 7978 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7979 res_desc->flags = SPRI_FULL_R_HOLDER; 7980 res_desc->scopetype = lun->res_type; 7981 } 7982 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7983 res_desc->rel_trgt_port_id); 7984 len = 0; 7985 port = softc->ctl_ports[ 7986 ctl_port_idx(i / CTL_MAX_INIT_PER_PORT)]; 7987 if (port != NULL) 7988 len = ctl_create_iid(port, 7989 i % CTL_MAX_INIT_PER_PORT, 7990 res_desc->transport_id); 7991 scsi_ulto4b(len, res_desc->additional_length); 7992 res_desc = (struct scsi_per_res_in_full_desc *) 7993 &res_desc->transport_id[len]; 7994 } 7995 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7996 res_status->header.length); 7997 break; 7998 } 7999 default: 8000 /* 8001 * This is a bug, because we just checked for this above, 8002 * and should have returned an error. 8003 */ 8004 panic("Invalid PR type %x", cdb->action); 8005 break; /* NOTREACHED */ 8006 } 8007 mtx_unlock(&lun->lun_lock); 8008 8009 ctl_set_success(ctsio); 8010 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8011 ctsio->be_move_done = ctl_config_move_done; 8012 ctl_datamove((union ctl_io *)ctsio); 8013 return (CTL_RETVAL_COMPLETE); 8014} 8015 8016static void 8017ctl_est_res_ua(struct ctl_lun *lun, uint32_t residx, ctl_ua_type ua) 8018{ 8019 int off = lun->ctl_softc->persis_offset; 8020 8021 if (residx >= off && residx < off + CTL_MAX_INITIATORS) 8022 ctl_est_ua(lun, residx - off, ua); 8023} 8024 8025/* 8026 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 8027 * it should return. 8028 */ 8029static int 8030ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 8031 uint64_t sa_res_key, uint8_t type, uint32_t residx, 8032 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 8033 struct scsi_per_res_out_parms* param) 8034{ 8035 union ctl_ha_msg persis_io; 8036 int retval, i; 8037 int isc_retval; 8038 8039 retval = 0; 8040 8041 mtx_lock(&lun->lun_lock); 8042 if (sa_res_key == 0) { 8043 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8044 /* validate scope and type */ 8045 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8046 SPR_LU_SCOPE) { 8047 mtx_unlock(&lun->lun_lock); 8048 ctl_set_invalid_field(/*ctsio*/ ctsio, 8049 /*sks_valid*/ 1, 8050 /*command*/ 1, 8051 /*field*/ 2, 8052 /*bit_valid*/ 1, 8053 /*bit*/ 4); 8054 ctl_done((union ctl_io *)ctsio); 8055 return (1); 8056 } 8057 8058 if (type>8 || type==2 || type==4 || type==0) { 8059 mtx_unlock(&lun->lun_lock); 8060 ctl_set_invalid_field(/*ctsio*/ ctsio, 8061 /*sks_valid*/ 1, 8062 /*command*/ 1, 8063 /*field*/ 2, 8064 /*bit_valid*/ 1, 8065 /*bit*/ 0); 8066 ctl_done((union ctl_io *)ctsio); 8067 return (1); 8068 } 8069 8070 /* 8071 * Unregister everybody else and build UA for 8072 * them 8073 */ 8074 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8075 if (i == residx || ctl_get_prkey(lun, i) == 0) 8076 continue; 8077 8078 ctl_clr_prkey(lun, i); 8079 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8080 } 8081 lun->pr_key_count = 1; 8082 lun->res_type = type; 8083 if (lun->res_type != SPR_TYPE_WR_EX_AR 8084 && lun->res_type != SPR_TYPE_EX_AC_AR) 8085 lun->pr_res_idx = residx; 8086 8087 /* send msg to other side */ 8088 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8089 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8090 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8091 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8092 persis_io.pr.pr_info.res_type = type; 8093 memcpy(persis_io.pr.pr_info.sa_res_key, 8094 param->serv_act_res_key, 8095 sizeof(param->serv_act_res_key)); 8096 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8097 &persis_io, sizeof(persis_io), 0)) > 8098 CTL_HA_STATUS_SUCCESS) { 8099 printf("CTL:Persis Out error returned " 8100 "from ctl_ha_msg_send %d\n", 8101 isc_retval); 8102 } 8103 } else { 8104 /* not all registrants */ 8105 mtx_unlock(&lun->lun_lock); 8106 free(ctsio->kern_data_ptr, M_CTL); 8107 ctl_set_invalid_field(ctsio, 8108 /*sks_valid*/ 1, 8109 /*command*/ 0, 8110 /*field*/ 8, 8111 /*bit_valid*/ 0, 8112 /*bit*/ 0); 8113 ctl_done((union ctl_io *)ctsio); 8114 return (1); 8115 } 8116 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8117 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 8118 int found = 0; 8119 8120 if (res_key == sa_res_key) { 8121 /* special case */ 8122 /* 8123 * The spec implies this is not good but doesn't 8124 * say what to do. There are two choices either 8125 * generate a res conflict or check condition 8126 * with illegal field in parameter data. Since 8127 * that is what is done when the sa_res_key is 8128 * zero I'll take that approach since this has 8129 * to do with the sa_res_key. 8130 */ 8131 mtx_unlock(&lun->lun_lock); 8132 free(ctsio->kern_data_ptr, M_CTL); 8133 ctl_set_invalid_field(ctsio, 8134 /*sks_valid*/ 1, 8135 /*command*/ 0, 8136 /*field*/ 8, 8137 /*bit_valid*/ 0, 8138 /*bit*/ 0); 8139 ctl_done((union ctl_io *)ctsio); 8140 return (1); 8141 } 8142 8143 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8144 if (ctl_get_prkey(lun, i) != sa_res_key) 8145 continue; 8146 8147 found = 1; 8148 ctl_clr_prkey(lun, i); 8149 lun->pr_key_count--; 8150 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8151 } 8152 if (!found) { 8153 mtx_unlock(&lun->lun_lock); 8154 free(ctsio->kern_data_ptr, M_CTL); 8155 ctl_set_reservation_conflict(ctsio); 8156 ctl_done((union ctl_io *)ctsio); 8157 return (CTL_RETVAL_COMPLETE); 8158 } 8159 /* send msg to other side */ 8160 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8161 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8162 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8163 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8164 persis_io.pr.pr_info.res_type = type; 8165 memcpy(persis_io.pr.pr_info.sa_res_key, 8166 param->serv_act_res_key, 8167 sizeof(param->serv_act_res_key)); 8168 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8169 &persis_io, sizeof(persis_io), 0)) > 8170 CTL_HA_STATUS_SUCCESS) { 8171 printf("CTL:Persis Out error returned from " 8172 "ctl_ha_msg_send %d\n", isc_retval); 8173 } 8174 } else { 8175 /* Reserved but not all registrants */ 8176 /* sa_res_key is res holder */ 8177 if (sa_res_key == ctl_get_prkey(lun, lun->pr_res_idx)) { 8178 /* validate scope and type */ 8179 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8180 SPR_LU_SCOPE) { 8181 mtx_unlock(&lun->lun_lock); 8182 ctl_set_invalid_field(/*ctsio*/ ctsio, 8183 /*sks_valid*/ 1, 8184 /*command*/ 1, 8185 /*field*/ 2, 8186 /*bit_valid*/ 1, 8187 /*bit*/ 4); 8188 ctl_done((union ctl_io *)ctsio); 8189 return (1); 8190 } 8191 8192 if (type>8 || type==2 || type==4 || type==0) { 8193 mtx_unlock(&lun->lun_lock); 8194 ctl_set_invalid_field(/*ctsio*/ ctsio, 8195 /*sks_valid*/ 1, 8196 /*command*/ 1, 8197 /*field*/ 2, 8198 /*bit_valid*/ 1, 8199 /*bit*/ 0); 8200 ctl_done((union ctl_io *)ctsio); 8201 return (1); 8202 } 8203 8204 /* 8205 * Do the following: 8206 * if sa_res_key != res_key remove all 8207 * registrants w/sa_res_key and generate UA 8208 * for these registrants(Registrations 8209 * Preempted) if it wasn't an exclusive 8210 * reservation generate UA(Reservations 8211 * Preempted) for all other registered nexuses 8212 * if the type has changed. Establish the new 8213 * reservation and holder. If res_key and 8214 * sa_res_key are the same do the above 8215 * except don't unregister the res holder. 8216 */ 8217 8218 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8219 if (i == residx || ctl_get_prkey(lun, i) == 0) 8220 continue; 8221 8222 if (sa_res_key == ctl_get_prkey(lun, i)) { 8223 ctl_clr_prkey(lun, i); 8224 lun->pr_key_count--; 8225 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8226 } else if (type != lun->res_type 8227 && (lun->res_type == SPR_TYPE_WR_EX_RO 8228 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 8229 ctl_est_res_ua(lun, i, CTL_UA_RES_RELEASE); 8230 } 8231 } 8232 lun->res_type = type; 8233 if (lun->res_type != SPR_TYPE_WR_EX_AR 8234 && lun->res_type != SPR_TYPE_EX_AC_AR) 8235 lun->pr_res_idx = residx; 8236 else 8237 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8238 8239 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8240 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8241 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8242 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8243 persis_io.pr.pr_info.res_type = type; 8244 memcpy(persis_io.pr.pr_info.sa_res_key, 8245 param->serv_act_res_key, 8246 sizeof(param->serv_act_res_key)); 8247 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8248 &persis_io, sizeof(persis_io), 0)) > 8249 CTL_HA_STATUS_SUCCESS) { 8250 printf("CTL:Persis Out error returned " 8251 "from ctl_ha_msg_send %d\n", 8252 isc_retval); 8253 } 8254 } else { 8255 /* 8256 * sa_res_key is not the res holder just 8257 * remove registrants 8258 */ 8259 int found=0; 8260 8261 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8262 if (sa_res_key != ctl_get_prkey(lun, i)) 8263 continue; 8264 8265 found = 1; 8266 ctl_clr_prkey(lun, i); 8267 lun->pr_key_count--; 8268 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8269 } 8270 8271 if (!found) { 8272 mtx_unlock(&lun->lun_lock); 8273 free(ctsio->kern_data_ptr, M_CTL); 8274 ctl_set_reservation_conflict(ctsio); 8275 ctl_done((union ctl_io *)ctsio); 8276 return (1); 8277 } 8278 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8279 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8280 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8281 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8282 persis_io.pr.pr_info.res_type = type; 8283 memcpy(persis_io.pr.pr_info.sa_res_key, 8284 param->serv_act_res_key, 8285 sizeof(param->serv_act_res_key)); 8286 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8287 &persis_io, sizeof(persis_io), 0)) > 8288 CTL_HA_STATUS_SUCCESS) { 8289 printf("CTL:Persis Out error returned " 8290 "from ctl_ha_msg_send %d\n", 8291 isc_retval); 8292 } 8293 } 8294 } 8295 8296 lun->PRGeneration++; 8297 mtx_unlock(&lun->lun_lock); 8298 8299 return (retval); 8300} 8301 8302static void 8303ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8304{ 8305 uint64_t sa_res_key; 8306 int i; 8307 8308 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8309 8310 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8311 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8312 || sa_res_key != ctl_get_prkey(lun, lun->pr_res_idx)) { 8313 if (sa_res_key == 0) { 8314 /* 8315 * Unregister everybody else and build UA for 8316 * them 8317 */ 8318 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8319 if (i == msg->pr.pr_info.residx || 8320 ctl_get_prkey(lun, i) == 0) 8321 continue; 8322 8323 ctl_clr_prkey(lun, i); 8324 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8325 } 8326 8327 lun->pr_key_count = 1; 8328 lun->res_type = msg->pr.pr_info.res_type; 8329 if (lun->res_type != SPR_TYPE_WR_EX_AR 8330 && lun->res_type != SPR_TYPE_EX_AC_AR) 8331 lun->pr_res_idx = msg->pr.pr_info.residx; 8332 } else { 8333 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8334 if (sa_res_key == ctl_get_prkey(lun, i)) 8335 continue; 8336 8337 ctl_clr_prkey(lun, i); 8338 lun->pr_key_count--; 8339 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8340 } 8341 } 8342 } else { 8343 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8344 if (i == msg->pr.pr_info.residx || 8345 ctl_get_prkey(lun, i) == 0) 8346 continue; 8347 8348 if (sa_res_key == ctl_get_prkey(lun, i)) { 8349 ctl_clr_prkey(lun, i); 8350 lun->pr_key_count--; 8351 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8352 } else if (msg->pr.pr_info.res_type != lun->res_type 8353 && (lun->res_type == SPR_TYPE_WR_EX_RO 8354 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8355 ctl_est_res_ua(lun, i, CTL_UA_RES_RELEASE); 8356 } 8357 } 8358 lun->res_type = msg->pr.pr_info.res_type; 8359 if (lun->res_type != SPR_TYPE_WR_EX_AR 8360 && lun->res_type != SPR_TYPE_EX_AC_AR) 8361 lun->pr_res_idx = msg->pr.pr_info.residx; 8362 else 8363 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8364 } 8365 lun->PRGeneration++; 8366 8367} 8368 8369 8370int 8371ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8372{ 8373 int retval; 8374 int isc_retval; 8375 u_int32_t param_len; 8376 struct scsi_per_res_out *cdb; 8377 struct ctl_lun *lun; 8378 struct scsi_per_res_out_parms* param; 8379 struct ctl_softc *softc; 8380 uint32_t residx; 8381 uint64_t res_key, sa_res_key, key; 8382 uint8_t type; 8383 union ctl_ha_msg persis_io; 8384 int i; 8385 8386 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8387 8388 retval = CTL_RETVAL_COMPLETE; 8389 8390 softc = control_softc; 8391 8392 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8393 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8394 8395 /* 8396 * We only support whole-LUN scope. The scope & type are ignored for 8397 * register, register and ignore existing key and clear. 8398 * We sometimes ignore scope and type on preempts too!! 8399 * Verify reservation type here as well. 8400 */ 8401 type = cdb->scope_type & SPR_TYPE_MASK; 8402 if ((cdb->action == SPRO_RESERVE) 8403 || (cdb->action == SPRO_RELEASE)) { 8404 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8405 ctl_set_invalid_field(/*ctsio*/ ctsio, 8406 /*sks_valid*/ 1, 8407 /*command*/ 1, 8408 /*field*/ 2, 8409 /*bit_valid*/ 1, 8410 /*bit*/ 4); 8411 ctl_done((union ctl_io *)ctsio); 8412 return (CTL_RETVAL_COMPLETE); 8413 } 8414 8415 if (type>8 || type==2 || type==4 || type==0) { 8416 ctl_set_invalid_field(/*ctsio*/ ctsio, 8417 /*sks_valid*/ 1, 8418 /*command*/ 1, 8419 /*field*/ 2, 8420 /*bit_valid*/ 1, 8421 /*bit*/ 0); 8422 ctl_done((union ctl_io *)ctsio); 8423 return (CTL_RETVAL_COMPLETE); 8424 } 8425 } 8426 8427 param_len = scsi_4btoul(cdb->length); 8428 8429 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8430 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8431 ctsio->kern_data_len = param_len; 8432 ctsio->kern_total_len = param_len; 8433 ctsio->kern_data_resid = 0; 8434 ctsio->kern_rel_offset = 0; 8435 ctsio->kern_sg_entries = 0; 8436 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8437 ctsio->be_move_done = ctl_config_move_done; 8438 ctl_datamove((union ctl_io *)ctsio); 8439 8440 return (CTL_RETVAL_COMPLETE); 8441 } 8442 8443 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8444 8445 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8446 res_key = scsi_8btou64(param->res_key.key); 8447 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8448 8449 /* 8450 * Validate the reservation key here except for SPRO_REG_IGNO 8451 * This must be done for all other service actions 8452 */ 8453 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8454 mtx_lock(&lun->lun_lock); 8455 if ((key = ctl_get_prkey(lun, residx)) != 0) { 8456 if (res_key != key) { 8457 /* 8458 * The current key passed in doesn't match 8459 * the one the initiator previously 8460 * registered. 8461 */ 8462 mtx_unlock(&lun->lun_lock); 8463 free(ctsio->kern_data_ptr, M_CTL); 8464 ctl_set_reservation_conflict(ctsio); 8465 ctl_done((union ctl_io *)ctsio); 8466 return (CTL_RETVAL_COMPLETE); 8467 } 8468 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8469 /* 8470 * We are not registered 8471 */ 8472 mtx_unlock(&lun->lun_lock); 8473 free(ctsio->kern_data_ptr, M_CTL); 8474 ctl_set_reservation_conflict(ctsio); 8475 ctl_done((union ctl_io *)ctsio); 8476 return (CTL_RETVAL_COMPLETE); 8477 } else if (res_key != 0) { 8478 /* 8479 * We are not registered and trying to register but 8480 * the register key isn't zero. 8481 */ 8482 mtx_unlock(&lun->lun_lock); 8483 free(ctsio->kern_data_ptr, M_CTL); 8484 ctl_set_reservation_conflict(ctsio); 8485 ctl_done((union ctl_io *)ctsio); 8486 return (CTL_RETVAL_COMPLETE); 8487 } 8488 mtx_unlock(&lun->lun_lock); 8489 } 8490 8491 switch (cdb->action & SPRO_ACTION_MASK) { 8492 case SPRO_REGISTER: 8493 case SPRO_REG_IGNO: { 8494 8495#if 0 8496 printf("Registration received\n"); 8497#endif 8498 8499 /* 8500 * We don't support any of these options, as we report in 8501 * the read capabilities request (see 8502 * ctl_persistent_reserve_in(), above). 8503 */ 8504 if ((param->flags & SPR_SPEC_I_PT) 8505 || (param->flags & SPR_ALL_TG_PT) 8506 || (param->flags & SPR_APTPL)) { 8507 int bit_ptr; 8508 8509 if (param->flags & SPR_APTPL) 8510 bit_ptr = 0; 8511 else if (param->flags & SPR_ALL_TG_PT) 8512 bit_ptr = 2; 8513 else /* SPR_SPEC_I_PT */ 8514 bit_ptr = 3; 8515 8516 free(ctsio->kern_data_ptr, M_CTL); 8517 ctl_set_invalid_field(ctsio, 8518 /*sks_valid*/ 1, 8519 /*command*/ 0, 8520 /*field*/ 20, 8521 /*bit_valid*/ 1, 8522 /*bit*/ bit_ptr); 8523 ctl_done((union ctl_io *)ctsio); 8524 return (CTL_RETVAL_COMPLETE); 8525 } 8526 8527 mtx_lock(&lun->lun_lock); 8528 8529 /* 8530 * The initiator wants to clear the 8531 * key/unregister. 8532 */ 8533 if (sa_res_key == 0) { 8534 if ((res_key == 0 8535 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8536 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8537 && ctl_get_prkey(lun, residx) == 0)) { 8538 mtx_unlock(&lun->lun_lock); 8539 goto done; 8540 } 8541 8542 ctl_clr_prkey(lun, residx); 8543 lun->pr_key_count--; 8544 8545 if (residx == lun->pr_res_idx) { 8546 lun->flags &= ~CTL_LUN_PR_RESERVED; 8547 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8548 8549 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8550 || lun->res_type == SPR_TYPE_EX_AC_RO) 8551 && lun->pr_key_count) { 8552 /* 8553 * If the reservation is a registrants 8554 * only type we need to generate a UA 8555 * for other registered inits. The 8556 * sense code should be RESERVATIONS 8557 * RELEASED 8558 */ 8559 8560 for (i = 0; i < CTL_MAX_INITIATORS;i++){ 8561 if (ctl_get_prkey(lun, i + 8562 softc->persis_offset) == 0) 8563 continue; 8564 ctl_est_ua(lun, i, 8565 CTL_UA_RES_RELEASE); 8566 } 8567 } 8568 lun->res_type = 0; 8569 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8570 if (lun->pr_key_count==0) { 8571 lun->flags &= ~CTL_LUN_PR_RESERVED; 8572 lun->res_type = 0; 8573 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8574 } 8575 } 8576 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8577 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8578 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8579 persis_io.pr.pr_info.residx = residx; 8580 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8581 &persis_io, sizeof(persis_io), 0 )) > 8582 CTL_HA_STATUS_SUCCESS) { 8583 printf("CTL:Persis Out error returned from " 8584 "ctl_ha_msg_send %d\n", isc_retval); 8585 } 8586 } else /* sa_res_key != 0 */ { 8587 8588 /* 8589 * If we aren't registered currently then increment 8590 * the key count and set the registered flag. 8591 */ 8592 ctl_alloc_prkey(lun, residx); 8593 if (ctl_get_prkey(lun, residx) == 0) 8594 lun->pr_key_count++; 8595 ctl_set_prkey(lun, residx, sa_res_key); 8596 8597 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8598 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8599 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8600 persis_io.pr.pr_info.residx = residx; 8601 memcpy(persis_io.pr.pr_info.sa_res_key, 8602 param->serv_act_res_key, 8603 sizeof(param->serv_act_res_key)); 8604 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8605 &persis_io, sizeof(persis_io), 0)) > 8606 CTL_HA_STATUS_SUCCESS) { 8607 printf("CTL:Persis Out error returned from " 8608 "ctl_ha_msg_send %d\n", isc_retval); 8609 } 8610 } 8611 lun->PRGeneration++; 8612 mtx_unlock(&lun->lun_lock); 8613 8614 break; 8615 } 8616 case SPRO_RESERVE: 8617#if 0 8618 printf("Reserve executed type %d\n", type); 8619#endif 8620 mtx_lock(&lun->lun_lock); 8621 if (lun->flags & CTL_LUN_PR_RESERVED) { 8622 /* 8623 * if this isn't the reservation holder and it's 8624 * not a "all registrants" type or if the type is 8625 * different then we have a conflict 8626 */ 8627 if ((lun->pr_res_idx != residx 8628 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8629 || lun->res_type != type) { 8630 mtx_unlock(&lun->lun_lock); 8631 free(ctsio->kern_data_ptr, M_CTL); 8632 ctl_set_reservation_conflict(ctsio); 8633 ctl_done((union ctl_io *)ctsio); 8634 return (CTL_RETVAL_COMPLETE); 8635 } 8636 mtx_unlock(&lun->lun_lock); 8637 } else /* create a reservation */ { 8638 /* 8639 * If it's not an "all registrants" type record 8640 * reservation holder 8641 */ 8642 if (type != SPR_TYPE_WR_EX_AR 8643 && type != SPR_TYPE_EX_AC_AR) 8644 lun->pr_res_idx = residx; /* Res holder */ 8645 else 8646 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8647 8648 lun->flags |= CTL_LUN_PR_RESERVED; 8649 lun->res_type = type; 8650 8651 mtx_unlock(&lun->lun_lock); 8652 8653 /* send msg to other side */ 8654 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8655 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8656 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8657 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8658 persis_io.pr.pr_info.res_type = type; 8659 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8660 &persis_io, sizeof(persis_io), 0)) > 8661 CTL_HA_STATUS_SUCCESS) { 8662 printf("CTL:Persis Out error returned from " 8663 "ctl_ha_msg_send %d\n", isc_retval); 8664 } 8665 } 8666 break; 8667 8668 case SPRO_RELEASE: 8669 mtx_lock(&lun->lun_lock); 8670 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8671 /* No reservation exists return good status */ 8672 mtx_unlock(&lun->lun_lock); 8673 goto done; 8674 } 8675 /* 8676 * Is this nexus a reservation holder? 8677 */ 8678 if (lun->pr_res_idx != residx 8679 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8680 /* 8681 * not a res holder return good status but 8682 * do nothing 8683 */ 8684 mtx_unlock(&lun->lun_lock); 8685 goto done; 8686 } 8687 8688 if (lun->res_type != type) { 8689 mtx_unlock(&lun->lun_lock); 8690 free(ctsio->kern_data_ptr, M_CTL); 8691 ctl_set_illegal_pr_release(ctsio); 8692 ctl_done((union ctl_io *)ctsio); 8693 return (CTL_RETVAL_COMPLETE); 8694 } 8695 8696 /* okay to release */ 8697 lun->flags &= ~CTL_LUN_PR_RESERVED; 8698 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8699 lun->res_type = 0; 8700 8701 /* 8702 * if this isn't an exclusive access 8703 * res generate UA for all other 8704 * registrants. 8705 */ 8706 if (type != SPR_TYPE_EX_AC 8707 && type != SPR_TYPE_WR_EX) { 8708 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8709 if (i == residx || 8710 ctl_get_prkey(lun, 8711 i + softc->persis_offset) == 0) 8712 continue; 8713 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8714 } 8715 } 8716 mtx_unlock(&lun->lun_lock); 8717 /* Send msg to other side */ 8718 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8719 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8720 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8721 if ((isc_retval=ctl_ha_msg_send( CTL_HA_CHAN_CTL, &persis_io, 8722 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8723 printf("CTL:Persis Out error returned from " 8724 "ctl_ha_msg_send %d\n", isc_retval); 8725 } 8726 break; 8727 8728 case SPRO_CLEAR: 8729 /* send msg to other side */ 8730 8731 mtx_lock(&lun->lun_lock); 8732 lun->flags &= ~CTL_LUN_PR_RESERVED; 8733 lun->res_type = 0; 8734 lun->pr_key_count = 0; 8735 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8736 8737 ctl_clr_prkey(lun, residx); 8738 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) 8739 if (ctl_get_prkey(lun, i) != 0) { 8740 ctl_clr_prkey(lun, i); 8741 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8742 } 8743 lun->PRGeneration++; 8744 mtx_unlock(&lun->lun_lock); 8745 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8746 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8747 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8748 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8749 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8750 printf("CTL:Persis Out error returned from " 8751 "ctl_ha_msg_send %d\n", isc_retval); 8752 } 8753 break; 8754 8755 case SPRO_PREEMPT: 8756 case SPRO_PRE_ABO: { 8757 int nretval; 8758 8759 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8760 residx, ctsio, cdb, param); 8761 if (nretval != 0) 8762 return (CTL_RETVAL_COMPLETE); 8763 break; 8764 } 8765 default: 8766 panic("Invalid PR type %x", cdb->action); 8767 } 8768 8769done: 8770 free(ctsio->kern_data_ptr, M_CTL); 8771 ctl_set_success(ctsio); 8772 ctl_done((union ctl_io *)ctsio); 8773 8774 return (retval); 8775} 8776 8777/* 8778 * This routine is for handling a message from the other SC pertaining to 8779 * persistent reserve out. All the error checking will have been done 8780 * so only perorming the action need be done here to keep the two 8781 * in sync. 8782 */ 8783static void 8784ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8785{ 8786 struct ctl_lun *lun; 8787 struct ctl_softc *softc; 8788 int i; 8789 uint32_t targ_lun; 8790 8791 softc = control_softc; 8792 8793 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8794 lun = softc->ctl_luns[targ_lun]; 8795 mtx_lock(&lun->lun_lock); 8796 switch(msg->pr.pr_info.action) { 8797 case CTL_PR_REG_KEY: 8798 ctl_alloc_prkey(lun, msg->pr.pr_info.residx); 8799 if (ctl_get_prkey(lun, msg->pr.pr_info.residx) == 0) 8800 lun->pr_key_count++; 8801 ctl_set_prkey(lun, msg->pr.pr_info.residx, 8802 scsi_8btou64(msg->pr.pr_info.sa_res_key)); 8803 lun->PRGeneration++; 8804 break; 8805 8806 case CTL_PR_UNREG_KEY: 8807 ctl_clr_prkey(lun, msg->pr.pr_info.residx); 8808 lun->pr_key_count--; 8809 8810 /* XXX Need to see if the reservation has been released */ 8811 /* if so do we need to generate UA? */ 8812 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8813 lun->flags &= ~CTL_LUN_PR_RESERVED; 8814 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8815 8816 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8817 || lun->res_type == SPR_TYPE_EX_AC_RO) 8818 && lun->pr_key_count) { 8819 /* 8820 * If the reservation is a registrants 8821 * only type we need to generate a UA 8822 * for other registered inits. The 8823 * sense code should be RESERVATIONS 8824 * RELEASED 8825 */ 8826 8827 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8828 if (ctl_get_prkey(lun, i + 8829 softc->persis_offset) == 0) 8830 continue; 8831 8832 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8833 } 8834 } 8835 lun->res_type = 0; 8836 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8837 if (lun->pr_key_count==0) { 8838 lun->flags &= ~CTL_LUN_PR_RESERVED; 8839 lun->res_type = 0; 8840 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8841 } 8842 } 8843 lun->PRGeneration++; 8844 break; 8845 8846 case CTL_PR_RESERVE: 8847 lun->flags |= CTL_LUN_PR_RESERVED; 8848 lun->res_type = msg->pr.pr_info.res_type; 8849 lun->pr_res_idx = msg->pr.pr_info.residx; 8850 8851 break; 8852 8853 case CTL_PR_RELEASE: 8854 /* 8855 * if this isn't an exclusive access res generate UA for all 8856 * other registrants. 8857 */ 8858 if (lun->res_type != SPR_TYPE_EX_AC 8859 && lun->res_type != SPR_TYPE_WR_EX) { 8860 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8861 if (ctl_get_prkey(lun, i + softc->persis_offset) != 0) 8862 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8863 } 8864 8865 lun->flags &= ~CTL_LUN_PR_RESERVED; 8866 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8867 lun->res_type = 0; 8868 break; 8869 8870 case CTL_PR_PREEMPT: 8871 ctl_pro_preempt_other(lun, msg); 8872 break; 8873 case CTL_PR_CLEAR: 8874 lun->flags &= ~CTL_LUN_PR_RESERVED; 8875 lun->res_type = 0; 8876 lun->pr_key_count = 0; 8877 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8878 8879 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8880 if (ctl_get_prkey(lun, i) == 0) 8881 continue; 8882 ctl_clr_prkey(lun, i); 8883 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8884 } 8885 lun->PRGeneration++; 8886 break; 8887 } 8888 8889 mtx_unlock(&lun->lun_lock); 8890} 8891 8892int 8893ctl_read_write(struct ctl_scsiio *ctsio) 8894{ 8895 struct ctl_lun *lun; 8896 struct ctl_lba_len_flags *lbalen; 8897 uint64_t lba; 8898 uint32_t num_blocks; 8899 int flags, retval; 8900 int isread; 8901 8902 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8903 8904 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8905 8906 flags = 0; 8907 retval = CTL_RETVAL_COMPLETE; 8908 8909 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8910 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8911 switch (ctsio->cdb[0]) { 8912 case READ_6: 8913 case WRITE_6: { 8914 struct scsi_rw_6 *cdb; 8915 8916 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8917 8918 lba = scsi_3btoul(cdb->addr); 8919 /* only 5 bits are valid in the most significant address byte */ 8920 lba &= 0x1fffff; 8921 num_blocks = cdb->length; 8922 /* 8923 * This is correct according to SBC-2. 8924 */ 8925 if (num_blocks == 0) 8926 num_blocks = 256; 8927 break; 8928 } 8929 case READ_10: 8930 case WRITE_10: { 8931 struct scsi_rw_10 *cdb; 8932 8933 cdb = (struct scsi_rw_10 *)ctsio->cdb; 8934 if (cdb->byte2 & SRW10_FUA) 8935 flags |= CTL_LLF_FUA; 8936 if (cdb->byte2 & SRW10_DPO) 8937 flags |= CTL_LLF_DPO; 8938 lba = scsi_4btoul(cdb->addr); 8939 num_blocks = scsi_2btoul(cdb->length); 8940 break; 8941 } 8942 case WRITE_VERIFY_10: { 8943 struct scsi_write_verify_10 *cdb; 8944 8945 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 8946 flags |= CTL_LLF_FUA; 8947 if (cdb->byte2 & SWV_DPO) 8948 flags |= CTL_LLF_DPO; 8949 lba = scsi_4btoul(cdb->addr); 8950 num_blocks = scsi_2btoul(cdb->length); 8951 break; 8952 } 8953 case READ_12: 8954 case WRITE_12: { 8955 struct scsi_rw_12 *cdb; 8956 8957 cdb = (struct scsi_rw_12 *)ctsio->cdb; 8958 if (cdb->byte2 & SRW12_FUA) 8959 flags |= CTL_LLF_FUA; 8960 if (cdb->byte2 & SRW12_DPO) 8961 flags |= CTL_LLF_DPO; 8962 lba = scsi_4btoul(cdb->addr); 8963 num_blocks = scsi_4btoul(cdb->length); 8964 break; 8965 } 8966 case WRITE_VERIFY_12: { 8967 struct scsi_write_verify_12 *cdb; 8968 8969 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 8970 flags |= CTL_LLF_FUA; 8971 if (cdb->byte2 & SWV_DPO) 8972 flags |= CTL_LLF_DPO; 8973 lba = scsi_4btoul(cdb->addr); 8974 num_blocks = scsi_4btoul(cdb->length); 8975 break; 8976 } 8977 case READ_16: 8978 case WRITE_16: { 8979 struct scsi_rw_16 *cdb; 8980 8981 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8982 if (cdb->byte2 & SRW12_FUA) 8983 flags |= CTL_LLF_FUA; 8984 if (cdb->byte2 & SRW12_DPO) 8985 flags |= CTL_LLF_DPO; 8986 lba = scsi_8btou64(cdb->addr); 8987 num_blocks = scsi_4btoul(cdb->length); 8988 break; 8989 } 8990 case WRITE_ATOMIC_16: { 8991 struct scsi_rw_16 *cdb; 8992 8993 if (lun->be_lun->atomicblock == 0) { 8994 ctl_set_invalid_opcode(ctsio); 8995 ctl_done((union ctl_io *)ctsio); 8996 return (CTL_RETVAL_COMPLETE); 8997 } 8998 8999 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9000 if (cdb->byte2 & SRW12_FUA) 9001 flags |= CTL_LLF_FUA; 9002 if (cdb->byte2 & SRW12_DPO) 9003 flags |= CTL_LLF_DPO; 9004 lba = scsi_8btou64(cdb->addr); 9005 num_blocks = scsi_4btoul(cdb->length); 9006 if (num_blocks > lun->be_lun->atomicblock) { 9007 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 9008 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 9009 /*bit*/ 0); 9010 ctl_done((union ctl_io *)ctsio); 9011 return (CTL_RETVAL_COMPLETE); 9012 } 9013 break; 9014 } 9015 case WRITE_VERIFY_16: { 9016 struct scsi_write_verify_16 *cdb; 9017 9018 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 9019 flags |= CTL_LLF_FUA; 9020 if (cdb->byte2 & SWV_DPO) 9021 flags |= CTL_LLF_DPO; 9022 lba = scsi_8btou64(cdb->addr); 9023 num_blocks = scsi_4btoul(cdb->length); 9024 break; 9025 } 9026 default: 9027 /* 9028 * We got a command we don't support. This shouldn't 9029 * happen, commands should be filtered out above us. 9030 */ 9031 ctl_set_invalid_opcode(ctsio); 9032 ctl_done((union ctl_io *)ctsio); 9033 9034 return (CTL_RETVAL_COMPLETE); 9035 break; /* NOTREACHED */ 9036 } 9037 9038 /* 9039 * The first check is to make sure we're in bounds, the second 9040 * check is to catch wrap-around problems. If the lba + num blocks 9041 * is less than the lba, then we've wrapped around and the block 9042 * range is invalid anyway. 9043 */ 9044 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9045 || ((lba + num_blocks) < lba)) { 9046 ctl_set_lba_out_of_range(ctsio); 9047 ctl_done((union ctl_io *)ctsio); 9048 return (CTL_RETVAL_COMPLETE); 9049 } 9050 9051 /* 9052 * According to SBC-3, a transfer length of 0 is not an error. 9053 * Note that this cannot happen with WRITE(6) or READ(6), since 0 9054 * translates to 256 blocks for those commands. 9055 */ 9056 if (num_blocks == 0) { 9057 ctl_set_success(ctsio); 9058 ctl_done((union ctl_io *)ctsio); 9059 return (CTL_RETVAL_COMPLETE); 9060 } 9061 9062 /* Set FUA and/or DPO if caches are disabled. */ 9063 if (isread) { 9064 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9065 SCP_RCD) != 0) 9066 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 9067 } else { 9068 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9069 SCP_WCE) == 0) 9070 flags |= CTL_LLF_FUA; 9071 } 9072 9073 lbalen = (struct ctl_lba_len_flags *) 9074 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9075 lbalen->lba = lba; 9076 lbalen->len = num_blocks; 9077 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 9078 9079 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9080 ctsio->kern_rel_offset = 0; 9081 9082 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 9083 9084 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9085 9086 return (retval); 9087} 9088 9089static int 9090ctl_cnw_cont(union ctl_io *io) 9091{ 9092 struct ctl_scsiio *ctsio; 9093 struct ctl_lun *lun; 9094 struct ctl_lba_len_flags *lbalen; 9095 int retval; 9096 9097 ctsio = &io->scsiio; 9098 ctsio->io_hdr.status = CTL_STATUS_NONE; 9099 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 9100 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9101 lbalen = (struct ctl_lba_len_flags *) 9102 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9103 lbalen->flags &= ~CTL_LLF_COMPARE; 9104 lbalen->flags |= CTL_LLF_WRITE; 9105 9106 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 9107 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9108 return (retval); 9109} 9110 9111int 9112ctl_cnw(struct ctl_scsiio *ctsio) 9113{ 9114 struct ctl_lun *lun; 9115 struct ctl_lba_len_flags *lbalen; 9116 uint64_t lba; 9117 uint32_t num_blocks; 9118 int flags, retval; 9119 9120 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9121 9122 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 9123 9124 flags = 0; 9125 retval = CTL_RETVAL_COMPLETE; 9126 9127 switch (ctsio->cdb[0]) { 9128 case COMPARE_AND_WRITE: { 9129 struct scsi_compare_and_write *cdb; 9130 9131 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 9132 if (cdb->byte2 & SRW10_FUA) 9133 flags |= CTL_LLF_FUA; 9134 if (cdb->byte2 & SRW10_DPO) 9135 flags |= CTL_LLF_DPO; 9136 lba = scsi_8btou64(cdb->addr); 9137 num_blocks = cdb->length; 9138 break; 9139 } 9140 default: 9141 /* 9142 * We got a command we don't support. This shouldn't 9143 * happen, commands should be filtered out above us. 9144 */ 9145 ctl_set_invalid_opcode(ctsio); 9146 ctl_done((union ctl_io *)ctsio); 9147 9148 return (CTL_RETVAL_COMPLETE); 9149 break; /* NOTREACHED */ 9150 } 9151 9152 /* 9153 * The first check is to make sure we're in bounds, the second 9154 * check is to catch wrap-around problems. If the lba + num blocks 9155 * is less than the lba, then we've wrapped around and the block 9156 * range is invalid anyway. 9157 */ 9158 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9159 || ((lba + num_blocks) < lba)) { 9160 ctl_set_lba_out_of_range(ctsio); 9161 ctl_done((union ctl_io *)ctsio); 9162 return (CTL_RETVAL_COMPLETE); 9163 } 9164 9165 /* 9166 * According to SBC-3, a transfer length of 0 is not an error. 9167 */ 9168 if (num_blocks == 0) { 9169 ctl_set_success(ctsio); 9170 ctl_done((union ctl_io *)ctsio); 9171 return (CTL_RETVAL_COMPLETE); 9172 } 9173 9174 /* Set FUA if write cache is disabled. */ 9175 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9176 SCP_WCE) == 0) 9177 flags |= CTL_LLF_FUA; 9178 9179 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 9180 ctsio->kern_rel_offset = 0; 9181 9182 /* 9183 * Set the IO_CONT flag, so that if this I/O gets passed to 9184 * ctl_data_submit_done(), it'll get passed back to 9185 * ctl_ctl_cnw_cont() for further processing. 9186 */ 9187 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 9188 ctsio->io_cont = ctl_cnw_cont; 9189 9190 lbalen = (struct ctl_lba_len_flags *) 9191 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9192 lbalen->lba = lba; 9193 lbalen->len = num_blocks; 9194 lbalen->flags = CTL_LLF_COMPARE | flags; 9195 9196 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 9197 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9198 return (retval); 9199} 9200 9201int 9202ctl_verify(struct ctl_scsiio *ctsio) 9203{ 9204 struct ctl_lun *lun; 9205 struct ctl_lba_len_flags *lbalen; 9206 uint64_t lba; 9207 uint32_t num_blocks; 9208 int bytchk, flags; 9209 int retval; 9210 9211 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9212 9213 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 9214 9215 bytchk = 0; 9216 flags = CTL_LLF_FUA; 9217 retval = CTL_RETVAL_COMPLETE; 9218 9219 switch (ctsio->cdb[0]) { 9220 case VERIFY_10: { 9221 struct scsi_verify_10 *cdb; 9222 9223 cdb = (struct scsi_verify_10 *)ctsio->cdb; 9224 if (cdb->byte2 & SVFY_BYTCHK) 9225 bytchk = 1; 9226 if (cdb->byte2 & SVFY_DPO) 9227 flags |= CTL_LLF_DPO; 9228 lba = scsi_4btoul(cdb->addr); 9229 num_blocks = scsi_2btoul(cdb->length); 9230 break; 9231 } 9232 case VERIFY_12: { 9233 struct scsi_verify_12 *cdb; 9234 9235 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9236 if (cdb->byte2 & SVFY_BYTCHK) 9237 bytchk = 1; 9238 if (cdb->byte2 & SVFY_DPO) 9239 flags |= CTL_LLF_DPO; 9240 lba = scsi_4btoul(cdb->addr); 9241 num_blocks = scsi_4btoul(cdb->length); 9242 break; 9243 } 9244 case VERIFY_16: { 9245 struct scsi_rw_16 *cdb; 9246 9247 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9248 if (cdb->byte2 & SVFY_BYTCHK) 9249 bytchk = 1; 9250 if (cdb->byte2 & SVFY_DPO) 9251 flags |= CTL_LLF_DPO; 9252 lba = scsi_8btou64(cdb->addr); 9253 num_blocks = scsi_4btoul(cdb->length); 9254 break; 9255 } 9256 default: 9257 /* 9258 * We got a command we don't support. This shouldn't 9259 * happen, commands should be filtered out above us. 9260 */ 9261 ctl_set_invalid_opcode(ctsio); 9262 ctl_done((union ctl_io *)ctsio); 9263 return (CTL_RETVAL_COMPLETE); 9264 } 9265 9266 /* 9267 * The first check is to make sure we're in bounds, the second 9268 * check is to catch wrap-around problems. If the lba + num blocks 9269 * is less than the lba, then we've wrapped around and the block 9270 * range is invalid anyway. 9271 */ 9272 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9273 || ((lba + num_blocks) < lba)) { 9274 ctl_set_lba_out_of_range(ctsio); 9275 ctl_done((union ctl_io *)ctsio); 9276 return (CTL_RETVAL_COMPLETE); 9277 } 9278 9279 /* 9280 * According to SBC-3, a transfer length of 0 is not an error. 9281 */ 9282 if (num_blocks == 0) { 9283 ctl_set_success(ctsio); 9284 ctl_done((union ctl_io *)ctsio); 9285 return (CTL_RETVAL_COMPLETE); 9286 } 9287 9288 lbalen = (struct ctl_lba_len_flags *) 9289 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9290 lbalen->lba = lba; 9291 lbalen->len = num_blocks; 9292 if (bytchk) { 9293 lbalen->flags = CTL_LLF_COMPARE | flags; 9294 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9295 } else { 9296 lbalen->flags = CTL_LLF_VERIFY | flags; 9297 ctsio->kern_total_len = 0; 9298 } 9299 ctsio->kern_rel_offset = 0; 9300 9301 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9302 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9303 return (retval); 9304} 9305 9306int 9307ctl_report_luns(struct ctl_scsiio *ctsio) 9308{ 9309 struct scsi_report_luns *cdb; 9310 struct scsi_report_luns_data *lun_data; 9311 struct ctl_lun *lun, *request_lun; 9312 int num_luns, retval; 9313 uint32_t alloc_len, lun_datalen; 9314 int num_filled, well_known; 9315 uint32_t initidx, targ_lun_id, lun_id; 9316 9317 retval = CTL_RETVAL_COMPLETE; 9318 well_known = 0; 9319 9320 cdb = (struct scsi_report_luns *)ctsio->cdb; 9321 9322 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9323 9324 mtx_lock(&control_softc->ctl_lock); 9325 num_luns = control_softc->num_luns; 9326 mtx_unlock(&control_softc->ctl_lock); 9327 9328 switch (cdb->select_report) { 9329 case RPL_REPORT_DEFAULT: 9330 case RPL_REPORT_ALL: 9331 break; 9332 case RPL_REPORT_WELLKNOWN: 9333 well_known = 1; 9334 num_luns = 0; 9335 break; 9336 default: 9337 ctl_set_invalid_field(ctsio, 9338 /*sks_valid*/ 1, 9339 /*command*/ 1, 9340 /*field*/ 2, 9341 /*bit_valid*/ 0, 9342 /*bit*/ 0); 9343 ctl_done((union ctl_io *)ctsio); 9344 return (retval); 9345 break; /* NOTREACHED */ 9346 } 9347 9348 alloc_len = scsi_4btoul(cdb->length); 9349 /* 9350 * The initiator has to allocate at least 16 bytes for this request, 9351 * so he can at least get the header and the first LUN. Otherwise 9352 * we reject the request (per SPC-3 rev 14, section 6.21). 9353 */ 9354 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9355 sizeof(struct scsi_report_luns_lundata))) { 9356 ctl_set_invalid_field(ctsio, 9357 /*sks_valid*/ 1, 9358 /*command*/ 1, 9359 /*field*/ 6, 9360 /*bit_valid*/ 0, 9361 /*bit*/ 0); 9362 ctl_done((union ctl_io *)ctsio); 9363 return (retval); 9364 } 9365 9366 request_lun = (struct ctl_lun *) 9367 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9368 9369 lun_datalen = sizeof(*lun_data) + 9370 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9371 9372 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9373 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9374 ctsio->kern_sg_entries = 0; 9375 9376 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9377 9378 mtx_lock(&control_softc->ctl_lock); 9379 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9380 lun_id = ctl_map_lun(ctsio->io_hdr.nexus.targ_port, targ_lun_id); 9381 if (lun_id >= CTL_MAX_LUNS) 9382 continue; 9383 lun = control_softc->ctl_luns[lun_id]; 9384 if (lun == NULL) 9385 continue; 9386 9387 if (targ_lun_id <= 0xff) { 9388 /* 9389 * Peripheral addressing method, bus number 0. 9390 */ 9391 lun_data->luns[num_filled].lundata[0] = 9392 RPL_LUNDATA_ATYP_PERIPH; 9393 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9394 num_filled++; 9395 } else if (targ_lun_id <= 0x3fff) { 9396 /* 9397 * Flat addressing method. 9398 */ 9399 lun_data->luns[num_filled].lundata[0] = 9400 RPL_LUNDATA_ATYP_FLAT | (targ_lun_id >> 8); 9401 lun_data->luns[num_filled].lundata[1] = 9402 (targ_lun_id & 0xff); 9403 num_filled++; 9404 } else if (targ_lun_id <= 0xffffff) { 9405 /* 9406 * Extended flat addressing method. 9407 */ 9408 lun_data->luns[num_filled].lundata[0] = 9409 RPL_LUNDATA_ATYP_EXTLUN | 0x12; 9410 scsi_ulto3b(targ_lun_id, 9411 &lun_data->luns[num_filled].lundata[1]); 9412 num_filled++; 9413 } else { 9414 printf("ctl_report_luns: bogus LUN number %jd, " 9415 "skipping\n", (intmax_t)targ_lun_id); 9416 } 9417 /* 9418 * According to SPC-3, rev 14 section 6.21: 9419 * 9420 * "The execution of a REPORT LUNS command to any valid and 9421 * installed logical unit shall clear the REPORTED LUNS DATA 9422 * HAS CHANGED unit attention condition for all logical 9423 * units of that target with respect to the requesting 9424 * initiator. A valid and installed logical unit is one 9425 * having a PERIPHERAL QUALIFIER of 000b in the standard 9426 * INQUIRY data (see 6.4.2)." 9427 * 9428 * If request_lun is NULL, the LUN this report luns command 9429 * was issued to is either disabled or doesn't exist. In that 9430 * case, we shouldn't clear any pending lun change unit 9431 * attention. 9432 */ 9433 if (request_lun != NULL) { 9434 mtx_lock(&lun->lun_lock); 9435 ctl_clr_ua(lun, initidx, CTL_UA_RES_RELEASE); 9436 mtx_unlock(&lun->lun_lock); 9437 } 9438 } 9439 mtx_unlock(&control_softc->ctl_lock); 9440 9441 /* 9442 * It's quite possible that we've returned fewer LUNs than we allocated 9443 * space for. Trim it. 9444 */ 9445 lun_datalen = sizeof(*lun_data) + 9446 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9447 9448 if (lun_datalen < alloc_len) { 9449 ctsio->residual = alloc_len - lun_datalen; 9450 ctsio->kern_data_len = lun_datalen; 9451 ctsio->kern_total_len = lun_datalen; 9452 } else { 9453 ctsio->residual = 0; 9454 ctsio->kern_data_len = alloc_len; 9455 ctsio->kern_total_len = alloc_len; 9456 } 9457 ctsio->kern_data_resid = 0; 9458 ctsio->kern_rel_offset = 0; 9459 ctsio->kern_sg_entries = 0; 9460 9461 /* 9462 * We set this to the actual data length, regardless of how much 9463 * space we actually have to return results. If the user looks at 9464 * this value, he'll know whether or not he allocated enough space 9465 * and reissue the command if necessary. We don't support well 9466 * known logical units, so if the user asks for that, return none. 9467 */ 9468 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9469 9470 /* 9471 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9472 * this request. 9473 */ 9474 ctl_set_success(ctsio); 9475 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9476 ctsio->be_move_done = ctl_config_move_done; 9477 ctl_datamove((union ctl_io *)ctsio); 9478 return (retval); 9479} 9480 9481int 9482ctl_request_sense(struct ctl_scsiio *ctsio) 9483{ 9484 struct scsi_request_sense *cdb; 9485 struct scsi_sense_data *sense_ptr; 9486 struct ctl_lun *lun; 9487 uint32_t initidx; 9488 int have_error; 9489 scsi_sense_data_type sense_format; 9490 ctl_ua_type ua_type; 9491 9492 cdb = (struct scsi_request_sense *)ctsio->cdb; 9493 9494 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9495 9496 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9497 9498 /* 9499 * Determine which sense format the user wants. 9500 */ 9501 if (cdb->byte2 & SRS_DESC) 9502 sense_format = SSD_TYPE_DESC; 9503 else 9504 sense_format = SSD_TYPE_FIXED; 9505 9506 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9507 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9508 ctsio->kern_sg_entries = 0; 9509 9510 /* 9511 * struct scsi_sense_data, which is currently set to 256 bytes, is 9512 * larger than the largest allowed value for the length field in the 9513 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9514 */ 9515 ctsio->residual = 0; 9516 ctsio->kern_data_len = cdb->length; 9517 ctsio->kern_total_len = cdb->length; 9518 9519 ctsio->kern_data_resid = 0; 9520 ctsio->kern_rel_offset = 0; 9521 ctsio->kern_sg_entries = 0; 9522 9523 /* 9524 * If we don't have a LUN, we don't have any pending sense. 9525 */ 9526 if (lun == NULL) 9527 goto no_sense; 9528 9529 have_error = 0; 9530 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9531 /* 9532 * Check for pending sense, and then for pending unit attentions. 9533 * Pending sense gets returned first, then pending unit attentions. 9534 */ 9535 mtx_lock(&lun->lun_lock); 9536#ifdef CTL_WITH_CA 9537 if (ctl_is_set(lun->have_ca, initidx)) { 9538 scsi_sense_data_type stored_format; 9539 9540 /* 9541 * Check to see which sense format was used for the stored 9542 * sense data. 9543 */ 9544 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9545 9546 /* 9547 * If the user requested a different sense format than the 9548 * one we stored, then we need to convert it to the other 9549 * format. If we're going from descriptor to fixed format 9550 * sense data, we may lose things in translation, depending 9551 * on what options were used. 9552 * 9553 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9554 * for some reason we'll just copy it out as-is. 9555 */ 9556 if ((stored_format == SSD_TYPE_FIXED) 9557 && (sense_format == SSD_TYPE_DESC)) 9558 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9559 &lun->pending_sense[initidx], 9560 (struct scsi_sense_data_desc *)sense_ptr); 9561 else if ((stored_format == SSD_TYPE_DESC) 9562 && (sense_format == SSD_TYPE_FIXED)) 9563 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9564 &lun->pending_sense[initidx], 9565 (struct scsi_sense_data_fixed *)sense_ptr); 9566 else 9567 memcpy(sense_ptr, &lun->pending_sense[initidx], 9568 ctl_min(sizeof(*sense_ptr), 9569 sizeof(lun->pending_sense[initidx]))); 9570 9571 ctl_clear_mask(lun->have_ca, initidx); 9572 have_error = 1; 9573 } else 9574#endif 9575 { 9576 ua_type = ctl_build_ua(lun, initidx, sense_ptr, sense_format); 9577 if (ua_type != CTL_UA_NONE) 9578 have_error = 1; 9579 } 9580 mtx_unlock(&lun->lun_lock); 9581 9582 /* 9583 * We already have a pending error, return it. 9584 */ 9585 if (have_error != 0) { 9586 /* 9587 * We report the SCSI status as OK, since the status of the 9588 * request sense command itself is OK. 9589 * We report 0 for the sense length, because we aren't doing 9590 * autosense in this case. We're reporting sense as 9591 * parameter data. 9592 */ 9593 ctl_set_success(ctsio); 9594 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9595 ctsio->be_move_done = ctl_config_move_done; 9596 ctl_datamove((union ctl_io *)ctsio); 9597 return (CTL_RETVAL_COMPLETE); 9598 } 9599 9600no_sense: 9601 9602 /* 9603 * No sense information to report, so we report that everything is 9604 * okay. 9605 */ 9606 ctl_set_sense_data(sense_ptr, 9607 lun, 9608 sense_format, 9609 /*current_error*/ 1, 9610 /*sense_key*/ SSD_KEY_NO_SENSE, 9611 /*asc*/ 0x00, 9612 /*ascq*/ 0x00, 9613 SSD_ELEM_NONE); 9614 9615 /* 9616 * We report 0 for the sense length, because we aren't doing 9617 * autosense in this case. We're reporting sense as parameter data. 9618 */ 9619 ctl_set_success(ctsio); 9620 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9621 ctsio->be_move_done = ctl_config_move_done; 9622 ctl_datamove((union ctl_io *)ctsio); 9623 return (CTL_RETVAL_COMPLETE); 9624} 9625 9626int 9627ctl_tur(struct ctl_scsiio *ctsio) 9628{ 9629 9630 CTL_DEBUG_PRINT(("ctl_tur\n")); 9631 9632 ctl_set_success(ctsio); 9633 ctl_done((union ctl_io *)ctsio); 9634 9635 return (CTL_RETVAL_COMPLETE); 9636} 9637 9638#ifdef notyet 9639static int 9640ctl_cmddt_inquiry(struct ctl_scsiio *ctsio) 9641{ 9642 9643} 9644#endif 9645 9646static int 9647ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9648{ 9649 struct scsi_vpd_supported_pages *pages; 9650 int sup_page_size; 9651 struct ctl_lun *lun; 9652 9653 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9654 9655 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9656 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9657 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9658 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9659 ctsio->kern_sg_entries = 0; 9660 9661 if (sup_page_size < alloc_len) { 9662 ctsio->residual = alloc_len - sup_page_size; 9663 ctsio->kern_data_len = sup_page_size; 9664 ctsio->kern_total_len = sup_page_size; 9665 } else { 9666 ctsio->residual = 0; 9667 ctsio->kern_data_len = alloc_len; 9668 ctsio->kern_total_len = alloc_len; 9669 } 9670 ctsio->kern_data_resid = 0; 9671 ctsio->kern_rel_offset = 0; 9672 ctsio->kern_sg_entries = 0; 9673 9674 /* 9675 * The control device is always connected. The disk device, on the 9676 * other hand, may not be online all the time. Need to change this 9677 * to figure out whether the disk device is actually online or not. 9678 */ 9679 if (lun != NULL) 9680 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9681 lun->be_lun->lun_type; 9682 else 9683 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9684 9685 pages->length = SCSI_EVPD_NUM_SUPPORTED_PAGES; 9686 /* Supported VPD pages */ 9687 pages->page_list[0] = SVPD_SUPPORTED_PAGES; 9688 /* Serial Number */ 9689 pages->page_list[1] = SVPD_UNIT_SERIAL_NUMBER; 9690 /* Device Identification */ 9691 pages->page_list[2] = SVPD_DEVICE_ID; 9692 /* Extended INQUIRY Data */ 9693 pages->page_list[3] = SVPD_EXTENDED_INQUIRY_DATA; 9694 /* Mode Page Policy */ 9695 pages->page_list[4] = SVPD_MODE_PAGE_POLICY; 9696 /* SCSI Ports */ 9697 pages->page_list[5] = SVPD_SCSI_PORTS; 9698 /* Third-party Copy */ 9699 pages->page_list[6] = SVPD_SCSI_TPC; 9700 /* Block limits */ 9701 pages->page_list[7] = SVPD_BLOCK_LIMITS; 9702 /* Block Device Characteristics */ 9703 pages->page_list[8] = SVPD_BDC; 9704 /* Logical Block Provisioning */ 9705 pages->page_list[9] = SVPD_LBP; 9706 9707 ctl_set_success(ctsio); 9708 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9709 ctsio->be_move_done = ctl_config_move_done; 9710 ctl_datamove((union ctl_io *)ctsio); 9711 return (CTL_RETVAL_COMPLETE); 9712} 9713 9714static int 9715ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9716{ 9717 struct scsi_vpd_unit_serial_number *sn_ptr; 9718 struct ctl_lun *lun; 9719 int data_len; 9720 9721 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9722 9723 data_len = 4 + CTL_SN_LEN; 9724 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9725 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9726 if (data_len < alloc_len) { 9727 ctsio->residual = alloc_len - data_len; 9728 ctsio->kern_data_len = data_len; 9729 ctsio->kern_total_len = data_len; 9730 } else { 9731 ctsio->residual = 0; 9732 ctsio->kern_data_len = alloc_len; 9733 ctsio->kern_total_len = alloc_len; 9734 } 9735 ctsio->kern_data_resid = 0; 9736 ctsio->kern_rel_offset = 0; 9737 ctsio->kern_sg_entries = 0; 9738 9739 /* 9740 * The control device is always connected. The disk device, on the 9741 * other hand, may not be online all the time. Need to change this 9742 * to figure out whether the disk device is actually online or not. 9743 */ 9744 if (lun != NULL) 9745 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9746 lun->be_lun->lun_type; 9747 else 9748 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9749 9750 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9751 sn_ptr->length = CTL_SN_LEN; 9752 /* 9753 * If we don't have a LUN, we just leave the serial number as 9754 * all spaces. 9755 */ 9756 if (lun != NULL) { 9757 strncpy((char *)sn_ptr->serial_num, 9758 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9759 } else 9760 memset(sn_ptr->serial_num, 0x20, CTL_SN_LEN); 9761 9762 ctl_set_success(ctsio); 9763 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9764 ctsio->be_move_done = ctl_config_move_done; 9765 ctl_datamove((union ctl_io *)ctsio); 9766 return (CTL_RETVAL_COMPLETE); 9767} 9768 9769 9770static int 9771ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9772{ 9773 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9774 struct ctl_lun *lun; 9775 int data_len; 9776 9777 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9778 9779 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9780 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9781 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9782 ctsio->kern_sg_entries = 0; 9783 9784 if (data_len < alloc_len) { 9785 ctsio->residual = alloc_len - data_len; 9786 ctsio->kern_data_len = data_len; 9787 ctsio->kern_total_len = data_len; 9788 } else { 9789 ctsio->residual = 0; 9790 ctsio->kern_data_len = alloc_len; 9791 ctsio->kern_total_len = alloc_len; 9792 } 9793 ctsio->kern_data_resid = 0; 9794 ctsio->kern_rel_offset = 0; 9795 ctsio->kern_sg_entries = 0; 9796 9797 /* 9798 * The control device is always connected. The disk device, on the 9799 * other hand, may not be online all the time. 9800 */ 9801 if (lun != NULL) 9802 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9803 lun->be_lun->lun_type; 9804 else 9805 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9806 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9807 eid_ptr->page_length = data_len - 4; 9808 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9809 eid_ptr->flags3 = SVPD_EID_V_SUP; 9810 9811 ctl_set_success(ctsio); 9812 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9813 ctsio->be_move_done = ctl_config_move_done; 9814 ctl_datamove((union ctl_io *)ctsio); 9815 return (CTL_RETVAL_COMPLETE); 9816} 9817 9818static int 9819ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9820{ 9821 struct scsi_vpd_mode_page_policy *mpp_ptr; 9822 struct ctl_lun *lun; 9823 int data_len; 9824 9825 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9826 9827 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9828 sizeof(struct scsi_vpd_mode_page_policy_descr); 9829 9830 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9831 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9832 ctsio->kern_sg_entries = 0; 9833 9834 if (data_len < alloc_len) { 9835 ctsio->residual = alloc_len - data_len; 9836 ctsio->kern_data_len = data_len; 9837 ctsio->kern_total_len = data_len; 9838 } else { 9839 ctsio->residual = 0; 9840 ctsio->kern_data_len = alloc_len; 9841 ctsio->kern_total_len = alloc_len; 9842 } 9843 ctsio->kern_data_resid = 0; 9844 ctsio->kern_rel_offset = 0; 9845 ctsio->kern_sg_entries = 0; 9846 9847 /* 9848 * The control device is always connected. The disk device, on the 9849 * other hand, may not be online all the time. 9850 */ 9851 if (lun != NULL) 9852 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9853 lun->be_lun->lun_type; 9854 else 9855 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9856 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9857 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9858 mpp_ptr->descr[0].page_code = 0x3f; 9859 mpp_ptr->descr[0].subpage_code = 0xff; 9860 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9861 9862 ctl_set_success(ctsio); 9863 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9864 ctsio->be_move_done = ctl_config_move_done; 9865 ctl_datamove((union ctl_io *)ctsio); 9866 return (CTL_RETVAL_COMPLETE); 9867} 9868 9869static int 9870ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9871{ 9872 struct scsi_vpd_device_id *devid_ptr; 9873 struct scsi_vpd_id_descriptor *desc; 9874 struct ctl_softc *ctl_softc; 9875 struct ctl_lun *lun; 9876 struct ctl_port *port; 9877 int data_len; 9878 uint8_t proto; 9879 9880 ctl_softc = control_softc; 9881 9882 port = ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]; 9883 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9884 9885 data_len = sizeof(struct scsi_vpd_device_id) + 9886 sizeof(struct scsi_vpd_id_descriptor) + 9887 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9888 sizeof(struct scsi_vpd_id_descriptor) + 9889 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9890 if (lun && lun->lun_devid) 9891 data_len += lun->lun_devid->len; 9892 if (port->port_devid) 9893 data_len += port->port_devid->len; 9894 if (port->target_devid) 9895 data_len += port->target_devid->len; 9896 9897 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9898 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9899 ctsio->kern_sg_entries = 0; 9900 9901 if (data_len < alloc_len) { 9902 ctsio->residual = alloc_len - data_len; 9903 ctsio->kern_data_len = data_len; 9904 ctsio->kern_total_len = data_len; 9905 } else { 9906 ctsio->residual = 0; 9907 ctsio->kern_data_len = alloc_len; 9908 ctsio->kern_total_len = alloc_len; 9909 } 9910 ctsio->kern_data_resid = 0; 9911 ctsio->kern_rel_offset = 0; 9912 ctsio->kern_sg_entries = 0; 9913 9914 /* 9915 * The control device is always connected. The disk device, on the 9916 * other hand, may not be online all the time. 9917 */ 9918 if (lun != NULL) 9919 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9920 lun->be_lun->lun_type; 9921 else 9922 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9923 devid_ptr->page_code = SVPD_DEVICE_ID; 9924 scsi_ulto2b(data_len - 4, devid_ptr->length); 9925 9926 if (port->port_type == CTL_PORT_FC) 9927 proto = SCSI_PROTO_FC << 4; 9928 else if (port->port_type == CTL_PORT_ISCSI) 9929 proto = SCSI_PROTO_ISCSI << 4; 9930 else 9931 proto = SCSI_PROTO_SPI << 4; 9932 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9933 9934 /* 9935 * We're using a LUN association here. i.e., this device ID is a 9936 * per-LUN identifier. 9937 */ 9938 if (lun && lun->lun_devid) { 9939 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9940 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9941 lun->lun_devid->len); 9942 } 9943 9944 /* 9945 * This is for the WWPN which is a port association. 9946 */ 9947 if (port->port_devid) { 9948 memcpy(desc, port->port_devid->data, port->port_devid->len); 9949 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9950 port->port_devid->len); 9951 } 9952 9953 /* 9954 * This is for the Relative Target Port(type 4h) identifier 9955 */ 9956 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9957 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9958 SVPD_ID_TYPE_RELTARG; 9959 desc->length = 4; 9960 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9961 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9962 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9963 9964 /* 9965 * This is for the Target Port Group(type 5h) identifier 9966 */ 9967 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9968 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9969 SVPD_ID_TYPE_TPORTGRP; 9970 desc->length = 4; 9971 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS + 1, 9972 &desc->identifier[2]); 9973 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9974 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9975 9976 /* 9977 * This is for the Target identifier 9978 */ 9979 if (port->target_devid) { 9980 memcpy(desc, port->target_devid->data, port->target_devid->len); 9981 } 9982 9983 ctl_set_success(ctsio); 9984 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9985 ctsio->be_move_done = ctl_config_move_done; 9986 ctl_datamove((union ctl_io *)ctsio); 9987 return (CTL_RETVAL_COMPLETE); 9988} 9989 9990static int 9991ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 9992{ 9993 struct ctl_softc *softc = control_softc; 9994 struct scsi_vpd_scsi_ports *sp; 9995 struct scsi_vpd_port_designation *pd; 9996 struct scsi_vpd_port_designation_cont *pdc; 9997 struct ctl_lun *lun; 9998 struct ctl_port *port; 9999 int data_len, num_target_ports, iid_len, id_len, g, pg, p; 10000 int num_target_port_groups; 10001 10002 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10003 10004 if (softc->is_single) 10005 num_target_port_groups = 1; 10006 else 10007 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 10008 num_target_ports = 0; 10009 iid_len = 0; 10010 id_len = 0; 10011 mtx_lock(&softc->ctl_lock); 10012 STAILQ_FOREACH(port, &softc->port_list, links) { 10013 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10014 continue; 10015 if (lun != NULL && 10016 ctl_map_lun_back(port->targ_port, lun->lun) >= 10017 CTL_MAX_LUNS) 10018 continue; 10019 num_target_ports++; 10020 if (port->init_devid) 10021 iid_len += port->init_devid->len; 10022 if (port->port_devid) 10023 id_len += port->port_devid->len; 10024 } 10025 mtx_unlock(&softc->ctl_lock); 10026 10027 data_len = sizeof(struct scsi_vpd_scsi_ports) + num_target_port_groups * 10028 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 10029 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 10030 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10031 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 10032 ctsio->kern_sg_entries = 0; 10033 10034 if (data_len < alloc_len) { 10035 ctsio->residual = alloc_len - data_len; 10036 ctsio->kern_data_len = data_len; 10037 ctsio->kern_total_len = data_len; 10038 } else { 10039 ctsio->residual = 0; 10040 ctsio->kern_data_len = alloc_len; 10041 ctsio->kern_total_len = alloc_len; 10042 } 10043 ctsio->kern_data_resid = 0; 10044 ctsio->kern_rel_offset = 0; 10045 ctsio->kern_sg_entries = 0; 10046 10047 /* 10048 * The control device is always connected. The disk device, on the 10049 * other hand, may not be online all the time. Need to change this 10050 * to figure out whether the disk device is actually online or not. 10051 */ 10052 if (lun != NULL) 10053 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 10054 lun->be_lun->lun_type; 10055 else 10056 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10057 10058 sp->page_code = SVPD_SCSI_PORTS; 10059 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 10060 sp->page_length); 10061 pd = &sp->design[0]; 10062 10063 mtx_lock(&softc->ctl_lock); 10064 pg = softc->port_offset / CTL_MAX_PORTS; 10065 for (g = 0; g < num_target_port_groups; g++) { 10066 STAILQ_FOREACH(port, &softc->port_list, links) { 10067 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10068 continue; 10069 if (lun != NULL && 10070 ctl_map_lun_back(port->targ_port, lun->lun) >= 10071 CTL_MAX_LUNS) 10072 continue; 10073 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 10074 scsi_ulto2b(p, pd->relative_port_id); 10075 if (port->init_devid && g == pg) { 10076 iid_len = port->init_devid->len; 10077 memcpy(pd->initiator_transportid, 10078 port->init_devid->data, port->init_devid->len); 10079 } else 10080 iid_len = 0; 10081 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 10082 pdc = (struct scsi_vpd_port_designation_cont *) 10083 (&pd->initiator_transportid[iid_len]); 10084 if (port->port_devid && g == pg) { 10085 id_len = port->port_devid->len; 10086 memcpy(pdc->target_port_descriptors, 10087 port->port_devid->data, port->port_devid->len); 10088 } else 10089 id_len = 0; 10090 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 10091 pd = (struct scsi_vpd_port_designation *) 10092 ((uint8_t *)pdc->target_port_descriptors + id_len); 10093 } 10094 } 10095 mtx_unlock(&softc->ctl_lock); 10096 10097 ctl_set_success(ctsio); 10098 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10099 ctsio->be_move_done = ctl_config_move_done; 10100 ctl_datamove((union ctl_io *)ctsio); 10101 return (CTL_RETVAL_COMPLETE); 10102} 10103 10104static int 10105ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 10106{ 10107 struct scsi_vpd_block_limits *bl_ptr; 10108 struct ctl_lun *lun; 10109 int bs; 10110 10111 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10112 10113 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 10114 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 10115 ctsio->kern_sg_entries = 0; 10116 10117 if (sizeof(*bl_ptr) < alloc_len) { 10118 ctsio->residual = alloc_len - sizeof(*bl_ptr); 10119 ctsio->kern_data_len = sizeof(*bl_ptr); 10120 ctsio->kern_total_len = sizeof(*bl_ptr); 10121 } else { 10122 ctsio->residual = 0; 10123 ctsio->kern_data_len = alloc_len; 10124 ctsio->kern_total_len = alloc_len; 10125 } 10126 ctsio->kern_data_resid = 0; 10127 ctsio->kern_rel_offset = 0; 10128 ctsio->kern_sg_entries = 0; 10129 10130 /* 10131 * The control device is always connected. The disk device, on the 10132 * other hand, may not be online all the time. Need to change this 10133 * to figure out whether the disk device is actually online or not. 10134 */ 10135 if (lun != NULL) 10136 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10137 lun->be_lun->lun_type; 10138 else 10139 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10140 10141 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 10142 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 10143 bl_ptr->max_cmp_write_len = 0xff; 10144 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 10145 if (lun != NULL) { 10146 bs = lun->be_lun->blocksize; 10147 scsi_ulto4b(lun->be_lun->opttxferlen, bl_ptr->opt_txfer_len); 10148 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10149 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 10150 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 10151 if (lun->be_lun->ublockexp != 0) { 10152 scsi_ulto4b((1 << lun->be_lun->ublockexp), 10153 bl_ptr->opt_unmap_grain); 10154 scsi_ulto4b(0x80000000 | lun->be_lun->ublockoff, 10155 bl_ptr->unmap_grain_align); 10156 } 10157 } 10158 scsi_ulto4b(lun->be_lun->atomicblock, 10159 bl_ptr->max_atomic_transfer_length); 10160 scsi_ulto4b(0, bl_ptr->atomic_alignment); 10161 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 10162 } 10163 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 10164 10165 ctl_set_success(ctsio); 10166 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10167 ctsio->be_move_done = ctl_config_move_done; 10168 ctl_datamove((union ctl_io *)ctsio); 10169 return (CTL_RETVAL_COMPLETE); 10170} 10171 10172static int 10173ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 10174{ 10175 struct scsi_vpd_block_device_characteristics *bdc_ptr; 10176 struct ctl_lun *lun; 10177 const char *value; 10178 u_int i; 10179 10180 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10181 10182 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 10183 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 10184 ctsio->kern_sg_entries = 0; 10185 10186 if (sizeof(*bdc_ptr) < alloc_len) { 10187 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 10188 ctsio->kern_data_len = sizeof(*bdc_ptr); 10189 ctsio->kern_total_len = sizeof(*bdc_ptr); 10190 } else { 10191 ctsio->residual = 0; 10192 ctsio->kern_data_len = alloc_len; 10193 ctsio->kern_total_len = alloc_len; 10194 } 10195 ctsio->kern_data_resid = 0; 10196 ctsio->kern_rel_offset = 0; 10197 ctsio->kern_sg_entries = 0; 10198 10199 /* 10200 * The control device is always connected. The disk device, on the 10201 * other hand, may not be online all the time. Need to change this 10202 * to figure out whether the disk device is actually online or not. 10203 */ 10204 if (lun != NULL) 10205 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10206 lun->be_lun->lun_type; 10207 else 10208 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10209 bdc_ptr->page_code = SVPD_BDC; 10210 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 10211 if (lun != NULL && 10212 (value = ctl_get_opt(&lun->be_lun->options, "rpm")) != NULL) 10213 i = strtol(value, NULL, 0); 10214 else 10215 i = CTL_DEFAULT_ROTATION_RATE; 10216 scsi_ulto2b(i, bdc_ptr->medium_rotation_rate); 10217 if (lun != NULL && 10218 (value = ctl_get_opt(&lun->be_lun->options, "formfactor")) != NULL) 10219 i = strtol(value, NULL, 0); 10220 else 10221 i = 0; 10222 bdc_ptr->wab_wac_ff = (i & 0x0f); 10223 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 10224 10225 ctl_set_success(ctsio); 10226 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10227 ctsio->be_move_done = ctl_config_move_done; 10228 ctl_datamove((union ctl_io *)ctsio); 10229 return (CTL_RETVAL_COMPLETE); 10230} 10231 10232static int 10233ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10234{ 10235 struct scsi_vpd_logical_block_prov *lbp_ptr; 10236 struct ctl_lun *lun; 10237 10238 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10239 10240 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10241 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10242 ctsio->kern_sg_entries = 0; 10243 10244 if (sizeof(*lbp_ptr) < alloc_len) { 10245 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10246 ctsio->kern_data_len = sizeof(*lbp_ptr); 10247 ctsio->kern_total_len = sizeof(*lbp_ptr); 10248 } else { 10249 ctsio->residual = 0; 10250 ctsio->kern_data_len = alloc_len; 10251 ctsio->kern_total_len = alloc_len; 10252 } 10253 ctsio->kern_data_resid = 0; 10254 ctsio->kern_rel_offset = 0; 10255 ctsio->kern_sg_entries = 0; 10256 10257 /* 10258 * The control device is always connected. The disk device, on the 10259 * other hand, may not be online all the time. Need to change this 10260 * to figure out whether the disk device is actually online or not. 10261 */ 10262 if (lun != NULL) 10263 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10264 lun->be_lun->lun_type; 10265 else 10266 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10267 10268 lbp_ptr->page_code = SVPD_LBP; 10269 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10270 lbp_ptr->threshold_exponent = CTL_LBP_EXPONENT; 10271 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10272 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10273 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10274 lbp_ptr->prov_type = SVPD_LBP_THIN; 10275 } 10276 10277 ctl_set_success(ctsio); 10278 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10279 ctsio->be_move_done = ctl_config_move_done; 10280 ctl_datamove((union ctl_io *)ctsio); 10281 return (CTL_RETVAL_COMPLETE); 10282} 10283 10284static int 10285ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10286{ 10287 struct scsi_inquiry *cdb; 10288 int alloc_len, retval; 10289 10290 cdb = (struct scsi_inquiry *)ctsio->cdb; 10291 10292 retval = CTL_RETVAL_COMPLETE; 10293 10294 alloc_len = scsi_2btoul(cdb->length); 10295 10296 switch (cdb->page_code) { 10297 case SVPD_SUPPORTED_PAGES: 10298 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10299 break; 10300 case SVPD_UNIT_SERIAL_NUMBER: 10301 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10302 break; 10303 case SVPD_DEVICE_ID: 10304 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10305 break; 10306 case SVPD_EXTENDED_INQUIRY_DATA: 10307 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10308 break; 10309 case SVPD_MODE_PAGE_POLICY: 10310 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10311 break; 10312 case SVPD_SCSI_PORTS: 10313 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10314 break; 10315 case SVPD_SCSI_TPC: 10316 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10317 break; 10318 case SVPD_BLOCK_LIMITS: 10319 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10320 break; 10321 case SVPD_BDC: 10322 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10323 break; 10324 case SVPD_LBP: 10325 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10326 break; 10327 default: 10328 ctl_set_invalid_field(ctsio, 10329 /*sks_valid*/ 1, 10330 /*command*/ 1, 10331 /*field*/ 2, 10332 /*bit_valid*/ 0, 10333 /*bit*/ 0); 10334 ctl_done((union ctl_io *)ctsio); 10335 retval = CTL_RETVAL_COMPLETE; 10336 break; 10337 } 10338 10339 return (retval); 10340} 10341 10342static int 10343ctl_inquiry_std(struct ctl_scsiio *ctsio) 10344{ 10345 struct scsi_inquiry_data *inq_ptr; 10346 struct scsi_inquiry *cdb; 10347 struct ctl_softc *ctl_softc; 10348 struct ctl_lun *lun; 10349 char *val; 10350 uint32_t alloc_len, data_len; 10351 ctl_port_type port_type; 10352 10353 ctl_softc = control_softc; 10354 10355 /* 10356 * Figure out whether we're talking to a Fibre Channel port or not. 10357 * We treat the ioctl front end, and any SCSI adapters, as packetized 10358 * SCSI front ends. 10359 */ 10360 port_type = ctl_softc->ctl_ports[ 10361 ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]->port_type; 10362 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10363 port_type = CTL_PORT_SCSI; 10364 10365 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10366 cdb = (struct scsi_inquiry *)ctsio->cdb; 10367 alloc_len = scsi_2btoul(cdb->length); 10368 10369 /* 10370 * We malloc the full inquiry data size here and fill it 10371 * in. If the user only asks for less, we'll give him 10372 * that much. 10373 */ 10374 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10375 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10376 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10377 ctsio->kern_sg_entries = 0; 10378 ctsio->kern_data_resid = 0; 10379 ctsio->kern_rel_offset = 0; 10380 10381 if (data_len < alloc_len) { 10382 ctsio->residual = alloc_len - data_len; 10383 ctsio->kern_data_len = data_len; 10384 ctsio->kern_total_len = data_len; 10385 } else { 10386 ctsio->residual = 0; 10387 ctsio->kern_data_len = alloc_len; 10388 ctsio->kern_total_len = alloc_len; 10389 } 10390 10391 /* 10392 * If we have a LUN configured, report it as connected. Otherwise, 10393 * report that it is offline or no device is supported, depending 10394 * on the value of inquiry_pq_no_lun. 10395 * 10396 * According to the spec (SPC-4 r34), the peripheral qualifier 10397 * SID_QUAL_LU_OFFLINE (001b) is used in the following scenario: 10398 * 10399 * "A peripheral device having the specified peripheral device type 10400 * is not connected to this logical unit. However, the device 10401 * server is capable of supporting the specified peripheral device 10402 * type on this logical unit." 10403 * 10404 * According to the same spec, the peripheral qualifier 10405 * SID_QUAL_BAD_LU (011b) is used in this scenario: 10406 * 10407 * "The device server is not capable of supporting a peripheral 10408 * device on this logical unit. For this peripheral qualifier the 10409 * peripheral device type shall be set to 1Fh. All other peripheral 10410 * device type values are reserved for this peripheral qualifier." 10411 * 10412 * Given the text, it would seem that we probably want to report that 10413 * the LUN is offline here. There is no LUN connected, but we can 10414 * support a LUN at the given LUN number. 10415 * 10416 * In the real world, though, it sounds like things are a little 10417 * different: 10418 * 10419 * - Linux, when presented with a LUN with the offline peripheral 10420 * qualifier, will create an sg driver instance for it. So when 10421 * you attach it to CTL, you wind up with a ton of sg driver 10422 * instances. (One for every LUN that Linux bothered to probe.) 10423 * Linux does this despite the fact that it issues a REPORT LUNs 10424 * to LUN 0 to get the inventory of supported LUNs. 10425 * 10426 * - There is other anecdotal evidence (from Emulex folks) about 10427 * arrays that use the offline peripheral qualifier for LUNs that 10428 * are on the "passive" path in an active/passive array. 10429 * 10430 * So the solution is provide a hopefully reasonable default 10431 * (return bad/no LUN) and allow the user to change the behavior 10432 * with a tunable/sysctl variable. 10433 */ 10434 if (lun != NULL) 10435 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10436 lun->be_lun->lun_type; 10437 else if (ctl_softc->inquiry_pq_no_lun == 0) 10438 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10439 else 10440 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10441 10442 /* RMB in byte 2 is 0 */ 10443 inq_ptr->version = SCSI_REV_SPC4; 10444 10445 /* 10446 * According to SAM-3, even if a device only supports a single 10447 * level of LUN addressing, it should still set the HISUP bit: 10448 * 10449 * 4.9.1 Logical unit numbers overview 10450 * 10451 * All logical unit number formats described in this standard are 10452 * hierarchical in structure even when only a single level in that 10453 * hierarchy is used. The HISUP bit shall be set to one in the 10454 * standard INQUIRY data (see SPC-2) when any logical unit number 10455 * format described in this standard is used. Non-hierarchical 10456 * formats are outside the scope of this standard. 10457 * 10458 * Therefore we set the HiSup bit here. 10459 * 10460 * The reponse format is 2, per SPC-3. 10461 */ 10462 inq_ptr->response_format = SID_HiSup | 2; 10463 10464 inq_ptr->additional_length = data_len - 10465 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10466 CTL_DEBUG_PRINT(("additional_length = %d\n", 10467 inq_ptr->additional_length)); 10468 10469 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10470 /* 16 bit addressing */ 10471 if (port_type == CTL_PORT_SCSI) 10472 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10473 /* XXX set the SID_MultiP bit here if we're actually going to 10474 respond on multiple ports */ 10475 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10476 10477 /* 16 bit data bus, synchronous transfers */ 10478 if (port_type == CTL_PORT_SCSI) 10479 inq_ptr->flags = SID_WBus16 | SID_Sync; 10480 /* 10481 * XXX KDM do we want to support tagged queueing on the control 10482 * device at all? 10483 */ 10484 if ((lun == NULL) 10485 || (lun->be_lun->lun_type != T_PROCESSOR)) 10486 inq_ptr->flags |= SID_CmdQue; 10487 /* 10488 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10489 * We have 8 bytes for the vendor name, and 16 bytes for the device 10490 * name and 4 bytes for the revision. 10491 */ 10492 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10493 "vendor")) == NULL) { 10494 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10495 } else { 10496 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10497 strncpy(inq_ptr->vendor, val, 10498 min(sizeof(inq_ptr->vendor), strlen(val))); 10499 } 10500 if (lun == NULL) { 10501 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10502 sizeof(inq_ptr->product)); 10503 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10504 switch (lun->be_lun->lun_type) { 10505 case T_DIRECT: 10506 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10507 sizeof(inq_ptr->product)); 10508 break; 10509 case T_PROCESSOR: 10510 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10511 sizeof(inq_ptr->product)); 10512 break; 10513 default: 10514 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10515 sizeof(inq_ptr->product)); 10516 break; 10517 } 10518 } else { 10519 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10520 strncpy(inq_ptr->product, val, 10521 min(sizeof(inq_ptr->product), strlen(val))); 10522 } 10523 10524 /* 10525 * XXX make this a macro somewhere so it automatically gets 10526 * incremented when we make changes. 10527 */ 10528 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10529 "revision")) == NULL) { 10530 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10531 } else { 10532 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10533 strncpy(inq_ptr->revision, val, 10534 min(sizeof(inq_ptr->revision), strlen(val))); 10535 } 10536 10537 /* 10538 * For parallel SCSI, we support double transition and single 10539 * transition clocking. We also support QAS (Quick Arbitration 10540 * and Selection) and Information Unit transfers on both the 10541 * control and array devices. 10542 */ 10543 if (port_type == CTL_PORT_SCSI) 10544 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10545 SID_SPI_IUS; 10546 10547 /* SAM-5 (no version claimed) */ 10548 scsi_ulto2b(0x00A0, inq_ptr->version1); 10549 /* SPC-4 (no version claimed) */ 10550 scsi_ulto2b(0x0460, inq_ptr->version2); 10551 if (port_type == CTL_PORT_FC) { 10552 /* FCP-2 ANSI INCITS.350:2003 */ 10553 scsi_ulto2b(0x0917, inq_ptr->version3); 10554 } else if (port_type == CTL_PORT_SCSI) { 10555 /* SPI-4 ANSI INCITS.362:200x */ 10556 scsi_ulto2b(0x0B56, inq_ptr->version3); 10557 } else if (port_type == CTL_PORT_ISCSI) { 10558 /* iSCSI (no version claimed) */ 10559 scsi_ulto2b(0x0960, inq_ptr->version3); 10560 } else if (port_type == CTL_PORT_SAS) { 10561 /* SAS (no version claimed) */ 10562 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10563 } 10564 10565 if (lun == NULL) { 10566 /* SBC-4 (no version claimed) */ 10567 scsi_ulto2b(0x0600, inq_ptr->version4); 10568 } else { 10569 switch (lun->be_lun->lun_type) { 10570 case T_DIRECT: 10571 /* SBC-4 (no version claimed) */ 10572 scsi_ulto2b(0x0600, inq_ptr->version4); 10573 break; 10574 case T_PROCESSOR: 10575 default: 10576 break; 10577 } 10578 } 10579 10580 ctl_set_success(ctsio); 10581 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10582 ctsio->be_move_done = ctl_config_move_done; 10583 ctl_datamove((union ctl_io *)ctsio); 10584 return (CTL_RETVAL_COMPLETE); 10585} 10586 10587int 10588ctl_inquiry(struct ctl_scsiio *ctsio) 10589{ 10590 struct scsi_inquiry *cdb; 10591 int retval; 10592 10593 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10594 10595 cdb = (struct scsi_inquiry *)ctsio->cdb; 10596 if (cdb->byte2 & SI_EVPD) 10597 retval = ctl_inquiry_evpd(ctsio); 10598 else if (cdb->page_code == 0) 10599 retval = ctl_inquiry_std(ctsio); 10600 else { 10601 ctl_set_invalid_field(ctsio, 10602 /*sks_valid*/ 1, 10603 /*command*/ 1, 10604 /*field*/ 2, 10605 /*bit_valid*/ 0, 10606 /*bit*/ 0); 10607 ctl_done((union ctl_io *)ctsio); 10608 return (CTL_RETVAL_COMPLETE); 10609 } 10610 10611 return (retval); 10612} 10613 10614/* 10615 * For known CDB types, parse the LBA and length. 10616 */ 10617static int 10618ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10619{ 10620 if (io->io_hdr.io_type != CTL_IO_SCSI) 10621 return (1); 10622 10623 switch (io->scsiio.cdb[0]) { 10624 case COMPARE_AND_WRITE: { 10625 struct scsi_compare_and_write *cdb; 10626 10627 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10628 10629 *lba = scsi_8btou64(cdb->addr); 10630 *len = cdb->length; 10631 break; 10632 } 10633 case READ_6: 10634 case WRITE_6: { 10635 struct scsi_rw_6 *cdb; 10636 10637 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10638 10639 *lba = scsi_3btoul(cdb->addr); 10640 /* only 5 bits are valid in the most significant address byte */ 10641 *lba &= 0x1fffff; 10642 *len = cdb->length; 10643 break; 10644 } 10645 case READ_10: 10646 case WRITE_10: { 10647 struct scsi_rw_10 *cdb; 10648 10649 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10650 10651 *lba = scsi_4btoul(cdb->addr); 10652 *len = scsi_2btoul(cdb->length); 10653 break; 10654 } 10655 case WRITE_VERIFY_10: { 10656 struct scsi_write_verify_10 *cdb; 10657 10658 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10659 10660 *lba = scsi_4btoul(cdb->addr); 10661 *len = scsi_2btoul(cdb->length); 10662 break; 10663 } 10664 case READ_12: 10665 case WRITE_12: { 10666 struct scsi_rw_12 *cdb; 10667 10668 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10669 10670 *lba = scsi_4btoul(cdb->addr); 10671 *len = scsi_4btoul(cdb->length); 10672 break; 10673 } 10674 case WRITE_VERIFY_12: { 10675 struct scsi_write_verify_12 *cdb; 10676 10677 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10678 10679 *lba = scsi_4btoul(cdb->addr); 10680 *len = scsi_4btoul(cdb->length); 10681 break; 10682 } 10683 case READ_16: 10684 case WRITE_16: 10685 case WRITE_ATOMIC_16: { 10686 struct scsi_rw_16 *cdb; 10687 10688 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10689 10690 *lba = scsi_8btou64(cdb->addr); 10691 *len = scsi_4btoul(cdb->length); 10692 break; 10693 } 10694 case WRITE_VERIFY_16: { 10695 struct scsi_write_verify_16 *cdb; 10696 10697 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10698 10699 *lba = scsi_8btou64(cdb->addr); 10700 *len = scsi_4btoul(cdb->length); 10701 break; 10702 } 10703 case WRITE_SAME_10: { 10704 struct scsi_write_same_10 *cdb; 10705 10706 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10707 10708 *lba = scsi_4btoul(cdb->addr); 10709 *len = scsi_2btoul(cdb->length); 10710 break; 10711 } 10712 case WRITE_SAME_16: { 10713 struct scsi_write_same_16 *cdb; 10714 10715 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10716 10717 *lba = scsi_8btou64(cdb->addr); 10718 *len = scsi_4btoul(cdb->length); 10719 break; 10720 } 10721 case VERIFY_10: { 10722 struct scsi_verify_10 *cdb; 10723 10724 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10725 10726 *lba = scsi_4btoul(cdb->addr); 10727 *len = scsi_2btoul(cdb->length); 10728 break; 10729 } 10730 case VERIFY_12: { 10731 struct scsi_verify_12 *cdb; 10732 10733 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10734 10735 *lba = scsi_4btoul(cdb->addr); 10736 *len = scsi_4btoul(cdb->length); 10737 break; 10738 } 10739 case VERIFY_16: { 10740 struct scsi_verify_16 *cdb; 10741 10742 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10743 10744 *lba = scsi_8btou64(cdb->addr); 10745 *len = scsi_4btoul(cdb->length); 10746 break; 10747 } 10748 case UNMAP: { 10749 *lba = 0; 10750 *len = UINT64_MAX; 10751 break; 10752 } 10753 case SERVICE_ACTION_IN: { /* GET LBA STATUS */ 10754 struct scsi_get_lba_status *cdb; 10755 10756 cdb = (struct scsi_get_lba_status *)io->scsiio.cdb; 10757 *lba = scsi_8btou64(cdb->addr); 10758 *len = UINT32_MAX; 10759 break; 10760 } 10761 default: 10762 return (1); 10763 break; /* NOTREACHED */ 10764 } 10765 10766 return (0); 10767} 10768 10769static ctl_action 10770ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2, 10771 bool seq) 10772{ 10773 uint64_t endlba1, endlba2; 10774 10775 endlba1 = lba1 + len1 - (seq ? 0 : 1); 10776 endlba2 = lba2 + len2 - 1; 10777 10778 if ((endlba1 < lba2) || (endlba2 < lba1)) 10779 return (CTL_ACTION_PASS); 10780 else 10781 return (CTL_ACTION_BLOCK); 10782} 10783 10784static int 10785ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10786{ 10787 struct ctl_ptr_len_flags *ptrlen; 10788 struct scsi_unmap_desc *buf, *end, *range; 10789 uint64_t lba; 10790 uint32_t len; 10791 10792 /* If not UNMAP -- go other way. */ 10793 if (io->io_hdr.io_type != CTL_IO_SCSI || 10794 io->scsiio.cdb[0] != UNMAP) 10795 return (CTL_ACTION_ERROR); 10796 10797 /* If UNMAP without data -- block and wait for data. */ 10798 ptrlen = (struct ctl_ptr_len_flags *) 10799 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10800 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10801 ptrlen->ptr == NULL) 10802 return (CTL_ACTION_BLOCK); 10803 10804 /* UNMAP with data -- check for collision. */ 10805 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10806 end = buf + ptrlen->len / sizeof(*buf); 10807 for (range = buf; range < end; range++) { 10808 lba = scsi_8btou64(range->lba); 10809 len = scsi_4btoul(range->length); 10810 if ((lba < lba2 + len2) && (lba + len > lba2)) 10811 return (CTL_ACTION_BLOCK); 10812 } 10813 return (CTL_ACTION_PASS); 10814} 10815 10816static ctl_action 10817ctl_extent_check(union ctl_io *io1, union ctl_io *io2, bool seq) 10818{ 10819 uint64_t lba1, lba2; 10820 uint64_t len1, len2; 10821 int retval; 10822 10823 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10824 return (CTL_ACTION_ERROR); 10825 10826 retval = ctl_extent_check_unmap(io1, lba2, len2); 10827 if (retval != CTL_ACTION_ERROR) 10828 return (retval); 10829 10830 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10831 return (CTL_ACTION_ERROR); 10832 10833 return (ctl_extent_check_lba(lba1, len1, lba2, len2, seq)); 10834} 10835 10836static ctl_action 10837ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2) 10838{ 10839 uint64_t lba1, lba2; 10840 uint64_t len1, len2; 10841 10842 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10843 return (CTL_ACTION_ERROR); 10844 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10845 return (CTL_ACTION_ERROR); 10846 10847 if (lba1 + len1 == lba2) 10848 return (CTL_ACTION_BLOCK); 10849 return (CTL_ACTION_PASS); 10850} 10851 10852static ctl_action 10853ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10854 union ctl_io *ooa_io) 10855{ 10856 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10857 ctl_serialize_action *serialize_row; 10858 10859 /* 10860 * The initiator attempted multiple untagged commands at the same 10861 * time. Can't do that. 10862 */ 10863 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10864 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10865 && ((pending_io->io_hdr.nexus.targ_port == 10866 ooa_io->io_hdr.nexus.targ_port) 10867 && (pending_io->io_hdr.nexus.initid.id == 10868 ooa_io->io_hdr.nexus.initid.id)) 10869 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10870 return (CTL_ACTION_OVERLAP); 10871 10872 /* 10873 * The initiator attempted to send multiple tagged commands with 10874 * the same ID. (It's fine if different initiators have the same 10875 * tag ID.) 10876 * 10877 * Even if all of those conditions are true, we don't kill the I/O 10878 * if the command ahead of us has been aborted. We won't end up 10879 * sending it to the FETD, and it's perfectly legal to resend a 10880 * command with the same tag number as long as the previous 10881 * instance of this tag number has been aborted somehow. 10882 */ 10883 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10884 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10885 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10886 && ((pending_io->io_hdr.nexus.targ_port == 10887 ooa_io->io_hdr.nexus.targ_port) 10888 && (pending_io->io_hdr.nexus.initid.id == 10889 ooa_io->io_hdr.nexus.initid.id)) 10890 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10891 return (CTL_ACTION_OVERLAP_TAG); 10892 10893 /* 10894 * If we get a head of queue tag, SAM-3 says that we should 10895 * immediately execute it. 10896 * 10897 * What happens if this command would normally block for some other 10898 * reason? e.g. a request sense with a head of queue tag 10899 * immediately after a write. Normally that would block, but this 10900 * will result in its getting executed immediately... 10901 * 10902 * We currently return "pass" instead of "skip", so we'll end up 10903 * going through the rest of the queue to check for overlapped tags. 10904 * 10905 * XXX KDM check for other types of blockage first?? 10906 */ 10907 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10908 return (CTL_ACTION_PASS); 10909 10910 /* 10911 * Ordered tags have to block until all items ahead of them 10912 * have completed. If we get called with an ordered tag, we always 10913 * block, if something else is ahead of us in the queue. 10914 */ 10915 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 10916 return (CTL_ACTION_BLOCK); 10917 10918 /* 10919 * Simple tags get blocked until all head of queue and ordered tags 10920 * ahead of them have completed. I'm lumping untagged commands in 10921 * with simple tags here. XXX KDM is that the right thing to do? 10922 */ 10923 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10924 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 10925 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10926 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 10927 return (CTL_ACTION_BLOCK); 10928 10929 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 10930 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 10931 10932 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 10933 10934 switch (serialize_row[pending_entry->seridx]) { 10935 case CTL_SER_BLOCK: 10936 return (CTL_ACTION_BLOCK); 10937 case CTL_SER_EXTENT: 10938 return (ctl_extent_check(ooa_io, pending_io, 10939 (lun->serseq == CTL_LUN_SERSEQ_ON))); 10940 case CTL_SER_EXTENTOPT: 10941 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 10942 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 10943 return (ctl_extent_check(ooa_io, pending_io, 10944 (lun->serseq == CTL_LUN_SERSEQ_ON))); 10945 return (CTL_ACTION_PASS); 10946 case CTL_SER_EXTENTSEQ: 10947 if (lun->serseq != CTL_LUN_SERSEQ_OFF) 10948 return (ctl_extent_check_seq(ooa_io, pending_io)); 10949 return (CTL_ACTION_PASS); 10950 case CTL_SER_PASS: 10951 return (CTL_ACTION_PASS); 10952 case CTL_SER_BLOCKOPT: 10953 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 10954 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 10955 return (CTL_ACTION_BLOCK); 10956 return (CTL_ACTION_PASS); 10957 case CTL_SER_SKIP: 10958 return (CTL_ACTION_SKIP); 10959 default: 10960 panic("invalid serialization value %d", 10961 serialize_row[pending_entry->seridx]); 10962 } 10963 10964 return (CTL_ACTION_ERROR); 10965} 10966 10967/* 10968 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 10969 * Assumptions: 10970 * - pending_io is generally either incoming, or on the blocked queue 10971 * - starting I/O is the I/O we want to start the check with. 10972 */ 10973static ctl_action 10974ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 10975 union ctl_io *starting_io) 10976{ 10977 union ctl_io *ooa_io; 10978 ctl_action action; 10979 10980 mtx_assert(&lun->lun_lock, MA_OWNED); 10981 10982 /* 10983 * Run back along the OOA queue, starting with the current 10984 * blocked I/O and going through every I/O before it on the 10985 * queue. If starting_io is NULL, we'll just end up returning 10986 * CTL_ACTION_PASS. 10987 */ 10988 for (ooa_io = starting_io; ooa_io != NULL; 10989 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 10990 ooa_links)){ 10991 10992 /* 10993 * This routine just checks to see whether 10994 * cur_blocked is blocked by ooa_io, which is ahead 10995 * of it in the queue. It doesn't queue/dequeue 10996 * cur_blocked. 10997 */ 10998 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 10999 switch (action) { 11000 case CTL_ACTION_BLOCK: 11001 case CTL_ACTION_OVERLAP: 11002 case CTL_ACTION_OVERLAP_TAG: 11003 case CTL_ACTION_SKIP: 11004 case CTL_ACTION_ERROR: 11005 return (action); 11006 break; /* NOTREACHED */ 11007 case CTL_ACTION_PASS: 11008 break; 11009 default: 11010 panic("invalid action %d", action); 11011 break; /* NOTREACHED */ 11012 } 11013 } 11014 11015 return (CTL_ACTION_PASS); 11016} 11017 11018/* 11019 * Assumptions: 11020 * - An I/O has just completed, and has been removed from the per-LUN OOA 11021 * queue, so some items on the blocked queue may now be unblocked. 11022 */ 11023static int 11024ctl_check_blocked(struct ctl_lun *lun) 11025{ 11026 union ctl_io *cur_blocked, *next_blocked; 11027 11028 mtx_assert(&lun->lun_lock, MA_OWNED); 11029 11030 /* 11031 * Run forward from the head of the blocked queue, checking each 11032 * entry against the I/Os prior to it on the OOA queue to see if 11033 * there is still any blockage. 11034 * 11035 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 11036 * with our removing a variable on it while it is traversing the 11037 * list. 11038 */ 11039 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 11040 cur_blocked != NULL; cur_blocked = next_blocked) { 11041 union ctl_io *prev_ooa; 11042 ctl_action action; 11043 11044 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 11045 blocked_links); 11046 11047 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11048 ctl_ooaq, ooa_links); 11049 11050 /* 11051 * If cur_blocked happens to be the first item in the OOA 11052 * queue now, prev_ooa will be NULL, and the action 11053 * returned will just be CTL_ACTION_PASS. 11054 */ 11055 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11056 11057 switch (action) { 11058 case CTL_ACTION_BLOCK: 11059 /* Nothing to do here, still blocked */ 11060 break; 11061 case CTL_ACTION_OVERLAP: 11062 case CTL_ACTION_OVERLAP_TAG: 11063 /* 11064 * This shouldn't happen! In theory we've already 11065 * checked this command for overlap... 11066 */ 11067 break; 11068 case CTL_ACTION_PASS: 11069 case CTL_ACTION_SKIP: { 11070 struct ctl_softc *softc; 11071 const struct ctl_cmd_entry *entry; 11072 int isc_retval; 11073 11074 /* 11075 * The skip case shouldn't happen, this transaction 11076 * should have never made it onto the blocked queue. 11077 */ 11078 /* 11079 * This I/O is no longer blocked, we can remove it 11080 * from the blocked queue. Since this is a TAILQ 11081 * (doubly linked list), we can do O(1) removals 11082 * from any place on the list. 11083 */ 11084 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11085 blocked_links); 11086 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11087 11088 if (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC){ 11089 /* 11090 * Need to send IO back to original side to 11091 * run 11092 */ 11093 union ctl_ha_msg msg_info; 11094 11095 msg_info.hdr.original_sc = 11096 cur_blocked->io_hdr.original_sc; 11097 msg_info.hdr.serializing_sc = cur_blocked; 11098 msg_info.hdr.msg_type = CTL_MSG_R2R; 11099 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11100 &msg_info, sizeof(msg_info), 0)) > 11101 CTL_HA_STATUS_SUCCESS) { 11102 printf("CTL:Check Blocked error from " 11103 "ctl_ha_msg_send %d\n", 11104 isc_retval); 11105 } 11106 break; 11107 } 11108 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 11109 softc = control_softc; 11110 11111 /* 11112 * Check this I/O for LUN state changes that may 11113 * have happened while this command was blocked. 11114 * The LUN state may have been changed by a command 11115 * ahead of us in the queue, so we need to re-check 11116 * for any states that can be caused by SCSI 11117 * commands. 11118 */ 11119 if (ctl_scsiio_lun_check(softc, lun, entry, 11120 &cur_blocked->scsiio) == 0) { 11121 cur_blocked->io_hdr.flags |= 11122 CTL_FLAG_IS_WAS_ON_RTR; 11123 ctl_enqueue_rtr(cur_blocked); 11124 } else 11125 ctl_done(cur_blocked); 11126 break; 11127 } 11128 default: 11129 /* 11130 * This probably shouldn't happen -- we shouldn't 11131 * get CTL_ACTION_ERROR, or anything else. 11132 */ 11133 break; 11134 } 11135 } 11136 11137 return (CTL_RETVAL_COMPLETE); 11138} 11139 11140/* 11141 * This routine (with one exception) checks LUN flags that can be set by 11142 * commands ahead of us in the OOA queue. These flags have to be checked 11143 * when a command initially comes in, and when we pull a command off the 11144 * blocked queue and are preparing to execute it. The reason we have to 11145 * check these flags for commands on the blocked queue is that the LUN 11146 * state may have been changed by a command ahead of us while we're on the 11147 * blocked queue. 11148 * 11149 * Ordering is somewhat important with these checks, so please pay 11150 * careful attention to the placement of any new checks. 11151 */ 11152static int 11153ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 11154 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11155{ 11156 int retval; 11157 uint32_t residx; 11158 11159 retval = 0; 11160 11161 mtx_assert(&lun->lun_lock, MA_OWNED); 11162 11163 /* 11164 * If this shelf is a secondary shelf controller, we have to reject 11165 * any media access commands. 11166 */ 11167 if ((ctl_softc->flags & CTL_FLAG_ACTIVE_SHELF) == 0 && 11168 (entry->flags & CTL_CMD_FLAG_OK_ON_SECONDARY) == 0) { 11169 ctl_set_lun_standby(ctsio); 11170 retval = 1; 11171 goto bailout; 11172 } 11173 11174 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11175 if (lun->flags & CTL_LUN_READONLY) { 11176 ctl_set_sense(ctsio, /*current_error*/ 1, 11177 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11178 /*asc*/ 0x27, /*ascq*/ 0x01, SSD_ELEM_NONE); 11179 retval = 1; 11180 goto bailout; 11181 } 11182 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT] 11183 .eca_and_aen & SCP_SWP) != 0) { 11184 ctl_set_sense(ctsio, /*current_error*/ 1, 11185 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11186 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11187 retval = 1; 11188 goto bailout; 11189 } 11190 } 11191 11192 /* 11193 * Check for a reservation conflict. If this command isn't allowed 11194 * even on reserved LUNs, and if this initiator isn't the one who 11195 * reserved us, reject the command with a reservation conflict. 11196 */ 11197 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 11198 if ((lun->flags & CTL_LUN_RESERVED) 11199 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11200 if (lun->res_idx != residx) { 11201 ctl_set_reservation_conflict(ctsio); 11202 retval = 1; 11203 goto bailout; 11204 } 11205 } 11206 11207 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0 || 11208 (entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV)) { 11209 /* No reservation or command is allowed. */; 11210 } else if ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_WRESV) && 11211 (lun->res_type == SPR_TYPE_WR_EX || 11212 lun->res_type == SPR_TYPE_WR_EX_RO || 11213 lun->res_type == SPR_TYPE_WR_EX_AR)) { 11214 /* The command is allowed for Write Exclusive resv. */; 11215 } else { 11216 /* 11217 * if we aren't registered or it's a res holder type 11218 * reservation and this isn't the res holder then set a 11219 * conflict. 11220 */ 11221 if (ctl_get_prkey(lun, residx) == 0 11222 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 11223 ctl_set_reservation_conflict(ctsio); 11224 retval = 1; 11225 goto bailout; 11226 } 11227 11228 } 11229 11230 if ((lun->flags & CTL_LUN_OFFLINE) 11231 && ((entry->flags & CTL_CMD_FLAG_OK_ON_OFFLINE) == 0)) { 11232 ctl_set_lun_not_ready(ctsio); 11233 retval = 1; 11234 goto bailout; 11235 } 11236 11237 /* 11238 * If the LUN is stopped, see if this particular command is allowed 11239 * for a stopped lun. Otherwise, reject it with 0x04,0x02. 11240 */ 11241 if ((lun->flags & CTL_LUN_STOPPED) 11242 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 11243 /* "Logical unit not ready, initializing cmd. required" */ 11244 ctl_set_lun_stopped(ctsio); 11245 retval = 1; 11246 goto bailout; 11247 } 11248 11249 if ((lun->flags & CTL_LUN_INOPERABLE) 11250 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 11251 /* "Medium format corrupted" */ 11252 ctl_set_medium_format_corrupted(ctsio); 11253 retval = 1; 11254 goto bailout; 11255 } 11256 11257bailout: 11258 return (retval); 11259 11260} 11261 11262static void 11263ctl_failover_io(union ctl_io *io, int have_lock) 11264{ 11265 ctl_set_busy(&io->scsiio); 11266 ctl_done(io); 11267} 11268 11269static void 11270ctl_failover(void) 11271{ 11272 struct ctl_lun *lun; 11273 struct ctl_softc *ctl_softc; 11274 union ctl_io *next_io, *pending_io; 11275 union ctl_io *io; 11276 int lun_idx; 11277 11278 ctl_softc = control_softc; 11279 11280 mtx_lock(&ctl_softc->ctl_lock); 11281 /* 11282 * Remove any cmds from the other SC from the rtr queue. These 11283 * will obviously only be for LUNs for which we're the primary. 11284 * We can't send status or get/send data for these commands. 11285 * Since they haven't been executed yet, we can just remove them. 11286 * We'll either abort them or delete them below, depending on 11287 * which HA mode we're in. 11288 */ 11289#ifdef notyet 11290 mtx_lock(&ctl_softc->queue_lock); 11291 for (io = (union ctl_io *)STAILQ_FIRST(&ctl_softc->rtr_queue); 11292 io != NULL; io = next_io) { 11293 next_io = (union ctl_io *)STAILQ_NEXT(&io->io_hdr, links); 11294 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11295 STAILQ_REMOVE(&ctl_softc->rtr_queue, &io->io_hdr, 11296 ctl_io_hdr, links); 11297 } 11298 mtx_unlock(&ctl_softc->queue_lock); 11299#endif 11300 11301 for (lun_idx=0; lun_idx < ctl_softc->num_luns; lun_idx++) { 11302 lun = ctl_softc->ctl_luns[lun_idx]; 11303 if (lun==NULL) 11304 continue; 11305 11306 /* 11307 * Processor LUNs are primary on both sides. 11308 * XXX will this always be true? 11309 */ 11310 if (lun->be_lun->lun_type == T_PROCESSOR) 11311 continue; 11312 11313 if ((lun->flags & CTL_LUN_PRIMARY_SC) 11314 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11315 printf("FAILOVER: primary lun %d\n", lun_idx); 11316 /* 11317 * Remove all commands from the other SC. First from the 11318 * blocked queue then from the ooa queue. Once we have 11319 * removed them. Call ctl_check_blocked to see if there 11320 * is anything that can run. 11321 */ 11322 for (io = (union ctl_io *)TAILQ_FIRST( 11323 &lun->blocked_queue); io != NULL; io = next_io) { 11324 11325 next_io = (union ctl_io *)TAILQ_NEXT( 11326 &io->io_hdr, blocked_links); 11327 11328 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11329 TAILQ_REMOVE(&lun->blocked_queue, 11330 &io->io_hdr,blocked_links); 11331 io->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11332 TAILQ_REMOVE(&lun->ooa_queue, 11333 &io->io_hdr, ooa_links); 11334 11335 ctl_free_io(io); 11336 } 11337 } 11338 11339 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11340 io != NULL; io = next_io) { 11341 11342 next_io = (union ctl_io *)TAILQ_NEXT( 11343 &io->io_hdr, ooa_links); 11344 11345 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11346 11347 TAILQ_REMOVE(&lun->ooa_queue, 11348 &io->io_hdr, 11349 ooa_links); 11350 11351 ctl_free_io(io); 11352 } 11353 } 11354 ctl_check_blocked(lun); 11355 } else if ((lun->flags & CTL_LUN_PRIMARY_SC) 11356 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11357 11358 printf("FAILOVER: primary lun %d\n", lun_idx); 11359 /* 11360 * Abort all commands from the other SC. We can't 11361 * send status back for them now. These should get 11362 * cleaned up when they are completed or come out 11363 * for a datamove operation. 11364 */ 11365 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11366 io != NULL; io = next_io) { 11367 next_io = (union ctl_io *)TAILQ_NEXT( 11368 &io->io_hdr, ooa_links); 11369 11370 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11371 io->io_hdr.flags |= CTL_FLAG_ABORT; 11372 } 11373 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11374 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11375 11376 printf("FAILOVER: secondary lun %d\n", lun_idx); 11377 11378 lun->flags |= CTL_LUN_PRIMARY_SC; 11379 11380 /* 11381 * We send all I/O that was sent to this controller 11382 * and redirected to the other side back with 11383 * busy status, and have the initiator retry it. 11384 * Figuring out how much data has been transferred, 11385 * etc. and picking up where we left off would be 11386 * very tricky. 11387 * 11388 * XXX KDM need to remove I/O from the blocked 11389 * queue as well! 11390 */ 11391 for (pending_io = (union ctl_io *)TAILQ_FIRST( 11392 &lun->ooa_queue); pending_io != NULL; 11393 pending_io = next_io) { 11394 11395 next_io = (union ctl_io *)TAILQ_NEXT( 11396 &pending_io->io_hdr, ooa_links); 11397 11398 pending_io->io_hdr.flags &= 11399 ~CTL_FLAG_SENT_2OTHER_SC; 11400 11401 if (pending_io->io_hdr.flags & 11402 CTL_FLAG_IO_ACTIVE) { 11403 pending_io->io_hdr.flags |= 11404 CTL_FLAG_FAILOVER; 11405 } else { 11406 ctl_set_busy(&pending_io->scsiio); 11407 ctl_done(pending_io); 11408 } 11409 } 11410 11411 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 11412 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11413 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11414 printf("FAILOVER: secondary lun %d\n", lun_idx); 11415 /* 11416 * if the first io on the OOA is not on the RtR queue 11417 * add it. 11418 */ 11419 lun->flags |= CTL_LUN_PRIMARY_SC; 11420 11421 pending_io = (union ctl_io *)TAILQ_FIRST( 11422 &lun->ooa_queue); 11423 if (pending_io==NULL) { 11424 printf("Nothing on OOA queue\n"); 11425 continue; 11426 } 11427 11428 pending_io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11429 if ((pending_io->io_hdr.flags & 11430 CTL_FLAG_IS_WAS_ON_RTR) == 0) { 11431 pending_io->io_hdr.flags |= 11432 CTL_FLAG_IS_WAS_ON_RTR; 11433 ctl_enqueue_rtr(pending_io); 11434 } 11435#if 0 11436 else 11437 { 11438 printf("Tag 0x%04x is running\n", 11439 pending_io->scsiio.tag_num); 11440 } 11441#endif 11442 11443 next_io = (union ctl_io *)TAILQ_NEXT( 11444 &pending_io->io_hdr, ooa_links); 11445 for (pending_io=next_io; pending_io != NULL; 11446 pending_io = next_io) { 11447 pending_io->io_hdr.flags &= 11448 ~CTL_FLAG_SENT_2OTHER_SC; 11449 next_io = (union ctl_io *)TAILQ_NEXT( 11450 &pending_io->io_hdr, ooa_links); 11451 if (pending_io->io_hdr.flags & 11452 CTL_FLAG_IS_WAS_ON_RTR) { 11453#if 0 11454 printf("Tag 0x%04x is running\n", 11455 pending_io->scsiio.tag_num); 11456#endif 11457 continue; 11458 } 11459 11460 switch (ctl_check_ooa(lun, pending_io, 11461 (union ctl_io *)TAILQ_PREV( 11462 &pending_io->io_hdr, ctl_ooaq, 11463 ooa_links))) { 11464 11465 case CTL_ACTION_BLOCK: 11466 TAILQ_INSERT_TAIL(&lun->blocked_queue, 11467 &pending_io->io_hdr, 11468 blocked_links); 11469 pending_io->io_hdr.flags |= 11470 CTL_FLAG_BLOCKED; 11471 break; 11472 case CTL_ACTION_PASS: 11473 case CTL_ACTION_SKIP: 11474 pending_io->io_hdr.flags |= 11475 CTL_FLAG_IS_WAS_ON_RTR; 11476 ctl_enqueue_rtr(pending_io); 11477 break; 11478 case CTL_ACTION_OVERLAP: 11479 ctl_set_overlapped_cmd( 11480 (struct ctl_scsiio *)pending_io); 11481 ctl_done(pending_io); 11482 break; 11483 case CTL_ACTION_OVERLAP_TAG: 11484 ctl_set_overlapped_tag( 11485 (struct ctl_scsiio *)pending_io, 11486 pending_io->scsiio.tag_num & 0xff); 11487 ctl_done(pending_io); 11488 break; 11489 case CTL_ACTION_ERROR: 11490 default: 11491 ctl_set_internal_failure( 11492 (struct ctl_scsiio *)pending_io, 11493 0, // sks_valid 11494 0); //retry count 11495 ctl_done(pending_io); 11496 break; 11497 } 11498 } 11499 11500 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 11501 } else { 11502 panic("Unhandled HA mode failover, LUN flags = %#x, " 11503 "ha_mode = #%x", lun->flags, ctl_softc->ha_mode); 11504 } 11505 } 11506 ctl_pause_rtr = 0; 11507 mtx_unlock(&ctl_softc->ctl_lock); 11508} 11509 11510static int 11511ctl_scsiio_precheck(struct ctl_softc *ctl_softc, struct ctl_scsiio *ctsio) 11512{ 11513 struct ctl_lun *lun; 11514 const struct ctl_cmd_entry *entry; 11515 uint32_t initidx, targ_lun; 11516 int retval; 11517 11518 retval = 0; 11519 11520 lun = NULL; 11521 11522 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11523 if ((targ_lun < CTL_MAX_LUNS) 11524 && ((lun = ctl_softc->ctl_luns[targ_lun]) != NULL)) { 11525 /* 11526 * If the LUN is invalid, pretend that it doesn't exist. 11527 * It will go away as soon as all pending I/O has been 11528 * completed. 11529 */ 11530 mtx_lock(&lun->lun_lock); 11531 if (lun->flags & CTL_LUN_DISABLED) { 11532 mtx_unlock(&lun->lun_lock); 11533 lun = NULL; 11534 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11535 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11536 } else { 11537 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11538 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11539 lun->be_lun; 11540 if (lun->be_lun->lun_type == T_PROCESSOR) { 11541 ctsio->io_hdr.flags |= CTL_FLAG_CONTROL_DEV; 11542 } 11543 11544 /* 11545 * Every I/O goes into the OOA queue for a 11546 * particular LUN, and stays there until completion. 11547 */ 11548 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11549 ooa_links); 11550 } 11551 } else { 11552 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11553 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11554 } 11555 11556 /* Get command entry and return error if it is unsuppotyed. */ 11557 entry = ctl_validate_command(ctsio); 11558 if (entry == NULL) { 11559 if (lun) 11560 mtx_unlock(&lun->lun_lock); 11561 return (retval); 11562 } 11563 11564 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11565 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11566 11567 /* 11568 * Check to see whether we can send this command to LUNs that don't 11569 * exist. This should pretty much only be the case for inquiry 11570 * and request sense. Further checks, below, really require having 11571 * a LUN, so we can't really check the command anymore. Just put 11572 * it on the rtr queue. 11573 */ 11574 if (lun == NULL) { 11575 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) { 11576 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11577 ctl_enqueue_rtr((union ctl_io *)ctsio); 11578 return (retval); 11579 } 11580 11581 ctl_set_unsupported_lun(ctsio); 11582 ctl_done((union ctl_io *)ctsio); 11583 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11584 return (retval); 11585 } else { 11586 /* 11587 * Make sure we support this particular command on this LUN. 11588 * e.g., we don't support writes to the control LUN. 11589 */ 11590 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11591 mtx_unlock(&lun->lun_lock); 11592 ctl_set_invalid_opcode(ctsio); 11593 ctl_done((union ctl_io *)ctsio); 11594 return (retval); 11595 } 11596 } 11597 11598 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11599 11600#ifdef CTL_WITH_CA 11601 /* 11602 * If we've got a request sense, it'll clear the contingent 11603 * allegiance condition. Otherwise, if we have a CA condition for 11604 * this initiator, clear it, because it sent down a command other 11605 * than request sense. 11606 */ 11607 if ((ctsio->cdb[0] != REQUEST_SENSE) 11608 && (ctl_is_set(lun->have_ca, initidx))) 11609 ctl_clear_mask(lun->have_ca, initidx); 11610#endif 11611 11612 /* 11613 * If the command has this flag set, it handles its own unit 11614 * attention reporting, we shouldn't do anything. Otherwise we 11615 * check for any pending unit attentions, and send them back to the 11616 * initiator. We only do this when a command initially comes in, 11617 * not when we pull it off the blocked queue. 11618 * 11619 * According to SAM-3, section 5.3.2, the order that things get 11620 * presented back to the host is basically unit attentions caused 11621 * by some sort of reset event, busy status, reservation conflicts 11622 * or task set full, and finally any other status. 11623 * 11624 * One issue here is that some of the unit attentions we report 11625 * don't fall into the "reset" category (e.g. "reported luns data 11626 * has changed"). So reporting it here, before the reservation 11627 * check, may be technically wrong. I guess the only thing to do 11628 * would be to check for and report the reset events here, and then 11629 * check for the other unit attention types after we check for a 11630 * reservation conflict. 11631 * 11632 * XXX KDM need to fix this 11633 */ 11634 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11635 ctl_ua_type ua_type; 11636 scsi_sense_data_type sense_format; 11637 11638 if (lun->flags & CTL_LUN_SENSE_DESC) 11639 sense_format = SSD_TYPE_DESC; 11640 else 11641 sense_format = SSD_TYPE_FIXED; 11642 11643 ua_type = ctl_build_ua(lun, initidx, &ctsio->sense_data, 11644 sense_format); 11645 if (ua_type != CTL_UA_NONE) { 11646 mtx_unlock(&lun->lun_lock); 11647 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11648 ctsio->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 11649 ctsio->sense_len = SSD_FULL_SIZE; 11650 ctl_done((union ctl_io *)ctsio); 11651 return (retval); 11652 } 11653 } 11654 11655 11656 if (ctl_scsiio_lun_check(ctl_softc, lun, entry, ctsio) != 0) { 11657 mtx_unlock(&lun->lun_lock); 11658 ctl_done((union ctl_io *)ctsio); 11659 return (retval); 11660 } 11661 11662 /* 11663 * XXX CHD this is where we want to send IO to other side if 11664 * this LUN is secondary on this SC. We will need to make a copy 11665 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11666 * the copy we send as FROM_OTHER. 11667 * We also need to stuff the address of the original IO so we can 11668 * find it easily. Something similar will need be done on the other 11669 * side so when we are done we can find the copy. 11670 */ 11671 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11672 union ctl_ha_msg msg_info; 11673 int isc_retval; 11674 11675 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11676 11677 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11678 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11679#if 0 11680 printf("1. ctsio %p\n", ctsio); 11681#endif 11682 msg_info.hdr.serializing_sc = NULL; 11683 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11684 msg_info.scsi.tag_num = ctsio->tag_num; 11685 msg_info.scsi.tag_type = ctsio->tag_type; 11686 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11687 11688 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11689 11690 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11691 (void *)&msg_info, sizeof(msg_info), 0)) > 11692 CTL_HA_STATUS_SUCCESS) { 11693 printf("CTL:precheck, ctl_ha_msg_send returned %d\n", 11694 isc_retval); 11695 printf("CTL:opcode is %x\n", ctsio->cdb[0]); 11696 } else { 11697#if 0 11698 printf("CTL:Precheck sent msg, opcode is %x\n",opcode); 11699#endif 11700 } 11701 11702 /* 11703 * XXX KDM this I/O is off the incoming queue, but hasn't 11704 * been inserted on any other queue. We may need to come 11705 * up with a holding queue while we wait for serialization 11706 * so that we have an idea of what we're waiting for from 11707 * the other side. 11708 */ 11709 mtx_unlock(&lun->lun_lock); 11710 return (retval); 11711 } 11712 11713 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11714 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11715 ctl_ooaq, ooa_links))) { 11716 case CTL_ACTION_BLOCK: 11717 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11718 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11719 blocked_links); 11720 mtx_unlock(&lun->lun_lock); 11721 return (retval); 11722 case CTL_ACTION_PASS: 11723 case CTL_ACTION_SKIP: 11724 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11725 mtx_unlock(&lun->lun_lock); 11726 ctl_enqueue_rtr((union ctl_io *)ctsio); 11727 break; 11728 case CTL_ACTION_OVERLAP: 11729 mtx_unlock(&lun->lun_lock); 11730 ctl_set_overlapped_cmd(ctsio); 11731 ctl_done((union ctl_io *)ctsio); 11732 break; 11733 case CTL_ACTION_OVERLAP_TAG: 11734 mtx_unlock(&lun->lun_lock); 11735 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11736 ctl_done((union ctl_io *)ctsio); 11737 break; 11738 case CTL_ACTION_ERROR: 11739 default: 11740 mtx_unlock(&lun->lun_lock); 11741 ctl_set_internal_failure(ctsio, 11742 /*sks_valid*/ 0, 11743 /*retry_count*/ 0); 11744 ctl_done((union ctl_io *)ctsio); 11745 break; 11746 } 11747 return (retval); 11748} 11749 11750const struct ctl_cmd_entry * 11751ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11752{ 11753 const struct ctl_cmd_entry *entry; 11754 int service_action; 11755 11756 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11757 if (sa) 11758 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11759 if (entry->flags & CTL_CMD_FLAG_SA5) { 11760 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11761 entry = &((const struct ctl_cmd_entry *) 11762 entry->execute)[service_action]; 11763 } 11764 return (entry); 11765} 11766 11767const struct ctl_cmd_entry * 11768ctl_validate_command(struct ctl_scsiio *ctsio) 11769{ 11770 const struct ctl_cmd_entry *entry; 11771 int i, sa; 11772 uint8_t diff; 11773 11774 entry = ctl_get_cmd_entry(ctsio, &sa); 11775 if (entry->execute == NULL) { 11776 if (sa) 11777 ctl_set_invalid_field(ctsio, 11778 /*sks_valid*/ 1, 11779 /*command*/ 1, 11780 /*field*/ 1, 11781 /*bit_valid*/ 1, 11782 /*bit*/ 4); 11783 else 11784 ctl_set_invalid_opcode(ctsio); 11785 ctl_done((union ctl_io *)ctsio); 11786 return (NULL); 11787 } 11788 KASSERT(entry->length > 0, 11789 ("Not defined length for command 0x%02x/0x%02x", 11790 ctsio->cdb[0], ctsio->cdb[1])); 11791 for (i = 1; i < entry->length; i++) { 11792 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11793 if (diff == 0) 11794 continue; 11795 ctl_set_invalid_field(ctsio, 11796 /*sks_valid*/ 1, 11797 /*command*/ 1, 11798 /*field*/ i, 11799 /*bit_valid*/ 1, 11800 /*bit*/ fls(diff) - 1); 11801 ctl_done((union ctl_io *)ctsio); 11802 return (NULL); 11803 } 11804 return (entry); 11805} 11806 11807static int 11808ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11809{ 11810 11811 switch (lun_type) { 11812 case T_PROCESSOR: 11813 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) && 11814 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11815 return (0); 11816 break; 11817 case T_DIRECT: 11818 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) && 11819 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11820 return (0); 11821 break; 11822 default: 11823 return (0); 11824 } 11825 return (1); 11826} 11827 11828static int 11829ctl_scsiio(struct ctl_scsiio *ctsio) 11830{ 11831 int retval; 11832 const struct ctl_cmd_entry *entry; 11833 11834 retval = CTL_RETVAL_COMPLETE; 11835 11836 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11837 11838 entry = ctl_get_cmd_entry(ctsio, NULL); 11839 11840 /* 11841 * If this I/O has been aborted, just send it straight to 11842 * ctl_done() without executing it. 11843 */ 11844 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11845 ctl_done((union ctl_io *)ctsio); 11846 goto bailout; 11847 } 11848 11849 /* 11850 * All the checks should have been handled by ctl_scsiio_precheck(). 11851 * We should be clear now to just execute the I/O. 11852 */ 11853 retval = entry->execute(ctsio); 11854 11855bailout: 11856 return (retval); 11857} 11858 11859/* 11860 * Since we only implement one target right now, a bus reset simply resets 11861 * our single target. 11862 */ 11863static int 11864ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io) 11865{ 11866 return(ctl_target_reset(ctl_softc, io, CTL_UA_BUS_RESET)); 11867} 11868 11869static int 11870ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 11871 ctl_ua_type ua_type) 11872{ 11873 struct ctl_lun *lun; 11874 int retval; 11875 11876 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11877 union ctl_ha_msg msg_info; 11878 11879 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11880 msg_info.hdr.nexus = io->io_hdr.nexus; 11881 if (ua_type==CTL_UA_TARG_RESET) 11882 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11883 else 11884 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11885 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11886 msg_info.hdr.original_sc = NULL; 11887 msg_info.hdr.serializing_sc = NULL; 11888 if (CTL_HA_STATUS_SUCCESS != ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11889 (void *)&msg_info, sizeof(msg_info), 0)) { 11890 } 11891 } 11892 retval = 0; 11893 11894 mtx_lock(&ctl_softc->ctl_lock); 11895 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) 11896 retval += ctl_lun_reset(lun, io, ua_type); 11897 mtx_unlock(&ctl_softc->ctl_lock); 11898 11899 return (retval); 11900} 11901 11902/* 11903 * The LUN should always be set. The I/O is optional, and is used to 11904 * distinguish between I/Os sent by this initiator, and by other 11905 * initiators. We set unit attention for initiators other than this one. 11906 * SAM-3 is vague on this point. It does say that a unit attention should 11907 * be established for other initiators when a LUN is reset (see section 11908 * 5.7.3), but it doesn't specifically say that the unit attention should 11909 * be established for this particular initiator when a LUN is reset. Here 11910 * is the relevant text, from SAM-3 rev 8: 11911 * 11912 * 5.7.2 When a SCSI initiator port aborts its own tasks 11913 * 11914 * When a SCSI initiator port causes its own task(s) to be aborted, no 11915 * notification that the task(s) have been aborted shall be returned to 11916 * the SCSI initiator port other than the completion response for the 11917 * command or task management function action that caused the task(s) to 11918 * be aborted and notification(s) associated with related effects of the 11919 * action (e.g., a reset unit attention condition). 11920 * 11921 * XXX KDM for now, we're setting unit attention for all initiators. 11922 */ 11923static int 11924ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11925{ 11926 union ctl_io *xio; 11927#if 0 11928 uint32_t initidx; 11929#endif 11930#ifdef CTL_WITH_CA 11931 int i; 11932#endif 11933 11934 mtx_lock(&lun->lun_lock); 11935 /* 11936 * Run through the OOA queue and abort each I/O. 11937 */ 11938#if 0 11939 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 11940#endif 11941 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11942 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11943 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11944 } 11945 11946 /* 11947 * This version sets unit attention for every 11948 */ 11949#if 0 11950 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11951 ctl_est_ua_all(lun, initidx, ua_type); 11952#else 11953 ctl_est_ua_all(lun, -1, ua_type); 11954#endif 11955 11956 /* 11957 * A reset (any kind, really) clears reservations established with 11958 * RESERVE/RELEASE. It does not clear reservations established 11959 * with PERSISTENT RESERVE OUT, but we don't support that at the 11960 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11961 * reservations made with the RESERVE/RELEASE commands, because 11962 * those commands are obsolete in SPC-3. 11963 */ 11964 lun->flags &= ~CTL_LUN_RESERVED; 11965 11966#ifdef CTL_WITH_CA 11967 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11968 ctl_clear_mask(lun->have_ca, i); 11969#endif 11970 mtx_unlock(&lun->lun_lock); 11971 11972 return (0); 11973} 11974 11975static void 11976ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11977 int other_sc) 11978{ 11979 union ctl_io *xio; 11980 11981 mtx_assert(&lun->lun_lock, MA_OWNED); 11982 11983 /* 11984 * Run through the OOA queue and attempt to find the given I/O. 11985 * The target port, initiator ID, tag type and tag number have to 11986 * match the values that we got from the initiator. If we have an 11987 * untagged command to abort, simply abort the first untagged command 11988 * we come to. We only allow one untagged command at a time of course. 11989 */ 11990 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11991 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11992 11993 if ((targ_port == UINT32_MAX || 11994 targ_port == xio->io_hdr.nexus.targ_port) && 11995 (init_id == UINT32_MAX || 11996 init_id == xio->io_hdr.nexus.initid.id)) { 11997 if (targ_port != xio->io_hdr.nexus.targ_port || 11998 init_id != xio->io_hdr.nexus.initid.id) 11999 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 12000 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12001 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12002 union ctl_ha_msg msg_info; 12003 12004 msg_info.hdr.nexus = xio->io_hdr.nexus; 12005 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12006 msg_info.task.tag_num = xio->scsiio.tag_num; 12007 msg_info.task.tag_type = xio->scsiio.tag_type; 12008 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12009 msg_info.hdr.original_sc = NULL; 12010 msg_info.hdr.serializing_sc = NULL; 12011 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12012 (void *)&msg_info, sizeof(msg_info), 0); 12013 } 12014 } 12015 } 12016} 12017 12018static int 12019ctl_abort_task_set(union ctl_io *io) 12020{ 12021 struct ctl_softc *softc = control_softc; 12022 struct ctl_lun *lun; 12023 uint32_t targ_lun; 12024 12025 /* 12026 * Look up the LUN. 12027 */ 12028 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12029 mtx_lock(&softc->ctl_lock); 12030 if ((targ_lun < CTL_MAX_LUNS) && (softc->ctl_luns[targ_lun] != NULL)) 12031 lun = softc->ctl_luns[targ_lun]; 12032 else { 12033 mtx_unlock(&softc->ctl_lock); 12034 return (1); 12035 } 12036 12037 mtx_lock(&lun->lun_lock); 12038 mtx_unlock(&softc->ctl_lock); 12039 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 12040 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12041 io->io_hdr.nexus.initid.id, 12042 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12043 } else { /* CTL_TASK_CLEAR_TASK_SET */ 12044 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 12045 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12046 } 12047 mtx_unlock(&lun->lun_lock); 12048 return (0); 12049} 12050 12051static int 12052ctl_i_t_nexus_reset(union ctl_io *io) 12053{ 12054 struct ctl_softc *softc = control_softc; 12055 struct ctl_lun *lun; 12056 uint32_t initidx, residx; 12057 12058 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12059 residx = ctl_get_resindex(&io->io_hdr.nexus); 12060 mtx_lock(&softc->ctl_lock); 12061 STAILQ_FOREACH(lun, &softc->lun_list, links) { 12062 mtx_lock(&lun->lun_lock); 12063 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12064 io->io_hdr.nexus.initid.id, 12065 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12066#ifdef CTL_WITH_CA 12067 ctl_clear_mask(lun->have_ca, initidx); 12068#endif 12069 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 12070 lun->flags &= ~CTL_LUN_RESERVED; 12071 ctl_est_ua(lun, initidx, CTL_UA_I_T_NEXUS_LOSS); 12072 mtx_unlock(&lun->lun_lock); 12073 } 12074 mtx_unlock(&softc->ctl_lock); 12075 return (0); 12076} 12077 12078static int 12079ctl_abort_task(union ctl_io *io) 12080{ 12081 union ctl_io *xio; 12082 struct ctl_lun *lun; 12083 struct ctl_softc *ctl_softc; 12084#if 0 12085 struct sbuf sb; 12086 char printbuf[128]; 12087#endif 12088 int found; 12089 uint32_t targ_lun; 12090 12091 ctl_softc = control_softc; 12092 found = 0; 12093 12094 /* 12095 * Look up the LUN. 12096 */ 12097 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12098 mtx_lock(&ctl_softc->ctl_lock); 12099 if ((targ_lun < CTL_MAX_LUNS) 12100 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12101 lun = ctl_softc->ctl_luns[targ_lun]; 12102 else { 12103 mtx_unlock(&ctl_softc->ctl_lock); 12104 return (1); 12105 } 12106 12107#if 0 12108 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12109 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12110#endif 12111 12112 mtx_lock(&lun->lun_lock); 12113 mtx_unlock(&ctl_softc->ctl_lock); 12114 /* 12115 * Run through the OOA queue and attempt to find the given I/O. 12116 * The target port, initiator ID, tag type and tag number have to 12117 * match the values that we got from the initiator. If we have an 12118 * untagged command to abort, simply abort the first untagged command 12119 * we come to. We only allow one untagged command at a time of course. 12120 */ 12121#if 0 12122 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12123#endif 12124 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12125 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12126#if 0 12127 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12128 12129 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12130 lun->lun, xio->scsiio.tag_num, 12131 xio->scsiio.tag_type, 12132 (xio->io_hdr.blocked_links.tqe_prev 12133 == NULL) ? "" : " BLOCKED", 12134 (xio->io_hdr.flags & 12135 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12136 (xio->io_hdr.flags & 12137 CTL_FLAG_ABORT) ? " ABORT" : "", 12138 (xio->io_hdr.flags & 12139 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12140 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12141 sbuf_finish(&sb); 12142 printf("%s\n", sbuf_data(&sb)); 12143#endif 12144 12145 if ((xio->io_hdr.nexus.targ_port == io->io_hdr.nexus.targ_port) 12146 && (xio->io_hdr.nexus.initid.id == 12147 io->io_hdr.nexus.initid.id)) { 12148 /* 12149 * If the abort says that the task is untagged, the 12150 * task in the queue must be untagged. Otherwise, 12151 * we just check to see whether the tag numbers 12152 * match. This is because the QLogic firmware 12153 * doesn't pass back the tag type in an abort 12154 * request. 12155 */ 12156#if 0 12157 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12158 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12159 || (xio->scsiio.tag_num == io->taskio.tag_num)) { 12160#endif 12161 /* 12162 * XXX KDM we've got problems with FC, because it 12163 * doesn't send down a tag type with aborts. So we 12164 * can only really go by the tag number... 12165 * This may cause problems with parallel SCSI. 12166 * Need to figure that out!! 12167 */ 12168 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12169 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12170 found = 1; 12171 if ((io->io_hdr.flags & 12172 CTL_FLAG_FROM_OTHER_SC) == 0 && 12173 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12174 union ctl_ha_msg msg_info; 12175 12176 io->io_hdr.flags |= 12177 CTL_FLAG_SENT_2OTHER_SC; 12178 msg_info.hdr.nexus = io->io_hdr.nexus; 12179 msg_info.task.task_action = 12180 CTL_TASK_ABORT_TASK; 12181 msg_info.task.tag_num = 12182 io->taskio.tag_num; 12183 msg_info.task.tag_type = 12184 io->taskio.tag_type; 12185 msg_info.hdr.msg_type = 12186 CTL_MSG_MANAGE_TASKS; 12187 msg_info.hdr.original_sc = NULL; 12188 msg_info.hdr.serializing_sc = NULL; 12189#if 0 12190 printf("Sent Abort to other side\n"); 12191#endif 12192 if (CTL_HA_STATUS_SUCCESS != 12193 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12194 (void *)&msg_info, 12195 sizeof(msg_info), 0)) { 12196 } 12197 } 12198#if 0 12199 printf("ctl_abort_task: found I/O to abort\n"); 12200#endif 12201 break; 12202 } 12203 } 12204 } 12205 mtx_unlock(&lun->lun_lock); 12206 12207 if (found == 0) { 12208 /* 12209 * This isn't really an error. It's entirely possible for 12210 * the abort and command completion to cross on the wire. 12211 * This is more of an informative/diagnostic error. 12212 */ 12213#if 0 12214 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12215 "%d:%d:%d:%d tag %d type %d\n", 12216 io->io_hdr.nexus.initid.id, 12217 io->io_hdr.nexus.targ_port, 12218 io->io_hdr.nexus.targ_target.id, 12219 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12220 io->taskio.tag_type); 12221#endif 12222 } 12223 return (0); 12224} 12225 12226static void 12227ctl_run_task(union ctl_io *io) 12228{ 12229 struct ctl_softc *ctl_softc = control_softc; 12230 int retval = 1; 12231 const char *task_desc; 12232 12233 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12234 12235 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12236 ("ctl_run_task: Unextected io_type %d\n", 12237 io->io_hdr.io_type)); 12238 12239 task_desc = ctl_scsi_task_string(&io->taskio); 12240 if (task_desc != NULL) { 12241#ifdef NEEDTOPORT 12242 csevent_log(CSC_CTL | CSC_SHELF_SW | 12243 CTL_TASK_REPORT, 12244 csevent_LogType_Trace, 12245 csevent_Severity_Information, 12246 csevent_AlertLevel_Green, 12247 csevent_FRU_Firmware, 12248 csevent_FRU_Unknown, 12249 "CTL: received task: %s",task_desc); 12250#endif 12251 } else { 12252#ifdef NEEDTOPORT 12253 csevent_log(CSC_CTL | CSC_SHELF_SW | 12254 CTL_TASK_REPORT, 12255 csevent_LogType_Trace, 12256 csevent_Severity_Information, 12257 csevent_AlertLevel_Green, 12258 csevent_FRU_Firmware, 12259 csevent_FRU_Unknown, 12260 "CTL: received unknown task " 12261 "type: %d (%#x)", 12262 io->taskio.task_action, 12263 io->taskio.task_action); 12264#endif 12265 } 12266 switch (io->taskio.task_action) { 12267 case CTL_TASK_ABORT_TASK: 12268 retval = ctl_abort_task(io); 12269 break; 12270 case CTL_TASK_ABORT_TASK_SET: 12271 case CTL_TASK_CLEAR_TASK_SET: 12272 retval = ctl_abort_task_set(io); 12273 break; 12274 case CTL_TASK_CLEAR_ACA: 12275 break; 12276 case CTL_TASK_I_T_NEXUS_RESET: 12277 retval = ctl_i_t_nexus_reset(io); 12278 break; 12279 case CTL_TASK_LUN_RESET: { 12280 struct ctl_lun *lun; 12281 uint32_t targ_lun; 12282 12283 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12284 mtx_lock(&ctl_softc->ctl_lock); 12285 if ((targ_lun < CTL_MAX_LUNS) 12286 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12287 lun = ctl_softc->ctl_luns[targ_lun]; 12288 else { 12289 mtx_unlock(&ctl_softc->ctl_lock); 12290 retval = 1; 12291 break; 12292 } 12293 12294 if (!(io->io_hdr.flags & 12295 CTL_FLAG_FROM_OTHER_SC)) { 12296 union ctl_ha_msg msg_info; 12297 12298 io->io_hdr.flags |= 12299 CTL_FLAG_SENT_2OTHER_SC; 12300 msg_info.hdr.msg_type = 12301 CTL_MSG_MANAGE_TASKS; 12302 msg_info.hdr.nexus = io->io_hdr.nexus; 12303 msg_info.task.task_action = 12304 CTL_TASK_LUN_RESET; 12305 msg_info.hdr.original_sc = NULL; 12306 msg_info.hdr.serializing_sc = NULL; 12307 if (CTL_HA_STATUS_SUCCESS != 12308 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12309 (void *)&msg_info, 12310 sizeof(msg_info), 0)) { 12311 } 12312 } 12313 12314 retval = ctl_lun_reset(lun, io, 12315 CTL_UA_LUN_RESET); 12316 mtx_unlock(&ctl_softc->ctl_lock); 12317 break; 12318 } 12319 case CTL_TASK_TARGET_RESET: 12320 retval = ctl_target_reset(ctl_softc, io, CTL_UA_TARG_RESET); 12321 break; 12322 case CTL_TASK_BUS_RESET: 12323 retval = ctl_bus_reset(ctl_softc, io); 12324 break; 12325 case CTL_TASK_PORT_LOGIN: 12326 break; 12327 case CTL_TASK_PORT_LOGOUT: 12328 break; 12329 default: 12330 printf("ctl_run_task: got unknown task management event %d\n", 12331 io->taskio.task_action); 12332 break; 12333 } 12334 if (retval == 0) 12335 io->io_hdr.status = CTL_SUCCESS; 12336 else 12337 io->io_hdr.status = CTL_ERROR; 12338 ctl_done(io); 12339} 12340 12341/* 12342 * For HA operation. Handle commands that come in from the other 12343 * controller. 12344 */ 12345static void 12346ctl_handle_isc(union ctl_io *io) 12347{ 12348 int free_io; 12349 struct ctl_lun *lun; 12350 struct ctl_softc *ctl_softc; 12351 uint32_t targ_lun; 12352 12353 ctl_softc = control_softc; 12354 12355 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12356 lun = ctl_softc->ctl_luns[targ_lun]; 12357 12358 switch (io->io_hdr.msg_type) { 12359 case CTL_MSG_SERIALIZE: 12360 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12361 break; 12362 case CTL_MSG_R2R: { 12363 const struct ctl_cmd_entry *entry; 12364 12365 /* 12366 * This is only used in SER_ONLY mode. 12367 */ 12368 free_io = 0; 12369 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12370 mtx_lock(&lun->lun_lock); 12371 if (ctl_scsiio_lun_check(ctl_softc, lun, 12372 entry, (struct ctl_scsiio *)io) != 0) { 12373 mtx_unlock(&lun->lun_lock); 12374 ctl_done(io); 12375 break; 12376 } 12377 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12378 mtx_unlock(&lun->lun_lock); 12379 ctl_enqueue_rtr(io); 12380 break; 12381 } 12382 case CTL_MSG_FINISH_IO: 12383 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 12384 free_io = 0; 12385 ctl_done(io); 12386 } else { 12387 free_io = 1; 12388 mtx_lock(&lun->lun_lock); 12389 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12390 ooa_links); 12391 ctl_check_blocked(lun); 12392 mtx_unlock(&lun->lun_lock); 12393 } 12394 break; 12395 case CTL_MSG_PERS_ACTION: 12396 ctl_hndl_per_res_out_on_other_sc( 12397 (union ctl_ha_msg *)&io->presio.pr_msg); 12398 free_io = 1; 12399 break; 12400 case CTL_MSG_BAD_JUJU: 12401 free_io = 0; 12402 ctl_done(io); 12403 break; 12404 case CTL_MSG_DATAMOVE: 12405 /* Only used in XFER mode */ 12406 free_io = 0; 12407 ctl_datamove_remote(io); 12408 break; 12409 case CTL_MSG_DATAMOVE_DONE: 12410 /* Only used in XFER mode */ 12411 free_io = 0; 12412 io->scsiio.be_move_done(io); 12413 break; 12414 default: 12415 free_io = 1; 12416 printf("%s: Invalid message type %d\n", 12417 __func__, io->io_hdr.msg_type); 12418 break; 12419 } 12420 if (free_io) 12421 ctl_free_io(io); 12422 12423} 12424 12425 12426/* 12427 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12428 * there is no match. 12429 */ 12430static ctl_lun_error_pattern 12431ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12432{ 12433 const struct ctl_cmd_entry *entry; 12434 ctl_lun_error_pattern filtered_pattern, pattern; 12435 12436 pattern = desc->error_pattern; 12437 12438 /* 12439 * XXX KDM we need more data passed into this function to match a 12440 * custom pattern, and we actually need to implement custom pattern 12441 * matching. 12442 */ 12443 if (pattern & CTL_LUN_PAT_CMD) 12444 return (CTL_LUN_PAT_CMD); 12445 12446 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12447 return (CTL_LUN_PAT_ANY); 12448 12449 entry = ctl_get_cmd_entry(ctsio, NULL); 12450 12451 filtered_pattern = entry->pattern & pattern; 12452 12453 /* 12454 * If the user requested specific flags in the pattern (e.g. 12455 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12456 * flags. 12457 * 12458 * If the user did not specify any flags, it doesn't matter whether 12459 * or not the command supports the flags. 12460 */ 12461 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12462 (pattern & ~CTL_LUN_PAT_MASK)) 12463 return (CTL_LUN_PAT_NONE); 12464 12465 /* 12466 * If the user asked for a range check, see if the requested LBA 12467 * range overlaps with this command's LBA range. 12468 */ 12469 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12470 uint64_t lba1; 12471 uint64_t len1; 12472 ctl_action action; 12473 int retval; 12474 12475 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12476 if (retval != 0) 12477 return (CTL_LUN_PAT_NONE); 12478 12479 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12480 desc->lba_range.len, FALSE); 12481 /* 12482 * A "pass" means that the LBA ranges don't overlap, so 12483 * this doesn't match the user's range criteria. 12484 */ 12485 if (action == CTL_ACTION_PASS) 12486 return (CTL_LUN_PAT_NONE); 12487 } 12488 12489 return (filtered_pattern); 12490} 12491 12492static void 12493ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12494{ 12495 struct ctl_error_desc *desc, *desc2; 12496 12497 mtx_assert(&lun->lun_lock, MA_OWNED); 12498 12499 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12500 ctl_lun_error_pattern pattern; 12501 /* 12502 * Check to see whether this particular command matches 12503 * the pattern in the descriptor. 12504 */ 12505 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12506 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12507 continue; 12508 12509 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12510 case CTL_LUN_INJ_ABORTED: 12511 ctl_set_aborted(&io->scsiio); 12512 break; 12513 case CTL_LUN_INJ_MEDIUM_ERR: 12514 ctl_set_medium_error(&io->scsiio); 12515 break; 12516 case CTL_LUN_INJ_UA: 12517 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12518 * OCCURRED */ 12519 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12520 break; 12521 case CTL_LUN_INJ_CUSTOM: 12522 /* 12523 * We're assuming the user knows what he is doing. 12524 * Just copy the sense information without doing 12525 * checks. 12526 */ 12527 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12528 ctl_min(sizeof(desc->custom_sense), 12529 sizeof(io->scsiio.sense_data))); 12530 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12531 io->scsiio.sense_len = SSD_FULL_SIZE; 12532 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12533 break; 12534 case CTL_LUN_INJ_NONE: 12535 default: 12536 /* 12537 * If this is an error injection type we don't know 12538 * about, clear the continuous flag (if it is set) 12539 * so it will get deleted below. 12540 */ 12541 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12542 break; 12543 } 12544 /* 12545 * By default, each error injection action is a one-shot 12546 */ 12547 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12548 continue; 12549 12550 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12551 12552 free(desc, M_CTL); 12553 } 12554} 12555 12556#ifdef CTL_IO_DELAY 12557static void 12558ctl_datamove_timer_wakeup(void *arg) 12559{ 12560 union ctl_io *io; 12561 12562 io = (union ctl_io *)arg; 12563 12564 ctl_datamove(io); 12565} 12566#endif /* CTL_IO_DELAY */ 12567 12568void 12569ctl_datamove(union ctl_io *io) 12570{ 12571 void (*fe_datamove)(union ctl_io *io); 12572 12573 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12574 12575 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12576 12577#ifdef CTL_TIME_IO 12578 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12579 char str[256]; 12580 char path_str[64]; 12581 struct sbuf sb; 12582 12583 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12584 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12585 12586 sbuf_cat(&sb, path_str); 12587 switch (io->io_hdr.io_type) { 12588 case CTL_IO_SCSI: 12589 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12590 sbuf_printf(&sb, "\n"); 12591 sbuf_cat(&sb, path_str); 12592 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12593 io->scsiio.tag_num, io->scsiio.tag_type); 12594 break; 12595 case CTL_IO_TASK: 12596 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12597 "Tag Type: %d\n", io->taskio.task_action, 12598 io->taskio.tag_num, io->taskio.tag_type); 12599 break; 12600 default: 12601 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12602 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12603 break; 12604 } 12605 sbuf_cat(&sb, path_str); 12606 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12607 (intmax_t)time_uptime - io->io_hdr.start_time); 12608 sbuf_finish(&sb); 12609 printf("%s", sbuf_data(&sb)); 12610 } 12611#endif /* CTL_TIME_IO */ 12612 12613#ifdef CTL_IO_DELAY 12614 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12615 struct ctl_lun *lun; 12616 12617 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12618 12619 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12620 } else { 12621 struct ctl_lun *lun; 12622 12623 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12624 if ((lun != NULL) 12625 && (lun->delay_info.datamove_delay > 0)) { 12626 struct callout *callout; 12627 12628 callout = (struct callout *)&io->io_hdr.timer_bytes; 12629 callout_init(callout, /*mpsafe*/ 1); 12630 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12631 callout_reset(callout, 12632 lun->delay_info.datamove_delay * hz, 12633 ctl_datamove_timer_wakeup, io); 12634 if (lun->delay_info.datamove_type == 12635 CTL_DELAY_TYPE_ONESHOT) 12636 lun->delay_info.datamove_delay = 0; 12637 return; 12638 } 12639 } 12640#endif 12641 12642 /* 12643 * This command has been aborted. Set the port status, so we fail 12644 * the data move. 12645 */ 12646 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12647 printf("ctl_datamove: tag 0x%04x on (%ju:%d:%ju:%d) aborted\n", 12648 io->scsiio.tag_num,(uintmax_t)io->io_hdr.nexus.initid.id, 12649 io->io_hdr.nexus.targ_port, 12650 (uintmax_t)io->io_hdr.nexus.targ_target.id, 12651 io->io_hdr.nexus.targ_lun); 12652 io->io_hdr.port_status = 31337; 12653 /* 12654 * Note that the backend, in this case, will get the 12655 * callback in its context. In other cases it may get 12656 * called in the frontend's interrupt thread context. 12657 */ 12658 io->scsiio.be_move_done(io); 12659 return; 12660 } 12661 12662 /* Don't confuse frontend with zero length data move. */ 12663 if (io->scsiio.kern_data_len == 0) { 12664 io->scsiio.be_move_done(io); 12665 return; 12666 } 12667 12668 /* 12669 * If we're in XFER mode and this I/O is from the other shelf 12670 * controller, we need to send the DMA to the other side to 12671 * actually transfer the data to/from the host. In serialize only 12672 * mode the transfer happens below CTL and ctl_datamove() is only 12673 * called on the machine that originally received the I/O. 12674 */ 12675 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12676 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12677 union ctl_ha_msg msg; 12678 uint32_t sg_entries_sent; 12679 int do_sg_copy; 12680 int i; 12681 12682 memset(&msg, 0, sizeof(msg)); 12683 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12684 msg.hdr.original_sc = io->io_hdr.original_sc; 12685 msg.hdr.serializing_sc = io; 12686 msg.hdr.nexus = io->io_hdr.nexus; 12687 msg.dt.flags = io->io_hdr.flags; 12688 /* 12689 * We convert everything into a S/G list here. We can't 12690 * pass by reference, only by value between controllers. 12691 * So we can't pass a pointer to the S/G list, only as many 12692 * S/G entries as we can fit in here. If it's possible for 12693 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12694 * then we need to break this up into multiple transfers. 12695 */ 12696 if (io->scsiio.kern_sg_entries == 0) { 12697 msg.dt.kern_sg_entries = 1; 12698 /* 12699 * If this is in cached memory, flush the cache 12700 * before we send the DMA request to the other 12701 * controller. We want to do this in either the 12702 * read or the write case. The read case is 12703 * straightforward. In the write case, we want to 12704 * make sure nothing is in the local cache that 12705 * could overwrite the DMAed data. 12706 */ 12707 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12708 /* 12709 * XXX KDM use bus_dmamap_sync() here. 12710 */ 12711 } 12712 12713 /* 12714 * Convert to a physical address if this is a 12715 * virtual address. 12716 */ 12717 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12718 msg.dt.sg_list[0].addr = 12719 io->scsiio.kern_data_ptr; 12720 } else { 12721 /* 12722 * XXX KDM use busdma here! 12723 */ 12724#if 0 12725 msg.dt.sg_list[0].addr = (void *) 12726 vtophys(io->scsiio.kern_data_ptr); 12727#endif 12728 } 12729 12730 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12731 do_sg_copy = 0; 12732 } else { 12733 struct ctl_sg_entry *sgl; 12734 12735 do_sg_copy = 1; 12736 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12737 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 12738 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12739 /* 12740 * XXX KDM use bus_dmamap_sync() here. 12741 */ 12742 } 12743 } 12744 12745 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12746 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12747 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12748 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12749 msg.dt.sg_sequence = 0; 12750 12751 /* 12752 * Loop until we've sent all of the S/G entries. On the 12753 * other end, we'll recompose these S/G entries into one 12754 * contiguous list before passing it to the 12755 */ 12756 for (sg_entries_sent = 0; sg_entries_sent < 12757 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12758 msg.dt.cur_sg_entries = ctl_min((sizeof(msg.dt.sg_list)/ 12759 sizeof(msg.dt.sg_list[0])), 12760 msg.dt.kern_sg_entries - sg_entries_sent); 12761 12762 if (do_sg_copy != 0) { 12763 struct ctl_sg_entry *sgl; 12764 int j; 12765 12766 sgl = (struct ctl_sg_entry *) 12767 io->scsiio.kern_data_ptr; 12768 /* 12769 * If this is in cached memory, flush the cache 12770 * before we send the DMA request to the other 12771 * controller. We want to do this in either 12772 * the * read or the write case. The read 12773 * case is straightforward. In the write 12774 * case, we want to make sure nothing is 12775 * in the local cache that could overwrite 12776 * the DMAed data. 12777 */ 12778 12779 for (i = sg_entries_sent, j = 0; 12780 i < msg.dt.cur_sg_entries; i++, j++) { 12781 if ((io->io_hdr.flags & 12782 CTL_FLAG_NO_DATASYNC) == 0) { 12783 /* 12784 * XXX KDM use bus_dmamap_sync() 12785 */ 12786 } 12787 if ((io->io_hdr.flags & 12788 CTL_FLAG_BUS_ADDR) == 0) { 12789 /* 12790 * XXX KDM use busdma. 12791 */ 12792#if 0 12793 msg.dt.sg_list[j].addr =(void *) 12794 vtophys(sgl[i].addr); 12795#endif 12796 } else { 12797 msg.dt.sg_list[j].addr = 12798 sgl[i].addr; 12799 } 12800 msg.dt.sg_list[j].len = sgl[i].len; 12801 } 12802 } 12803 12804 sg_entries_sent += msg.dt.cur_sg_entries; 12805 if (sg_entries_sent >= msg.dt.kern_sg_entries) 12806 msg.dt.sg_last = 1; 12807 else 12808 msg.dt.sg_last = 0; 12809 12810 /* 12811 * XXX KDM drop and reacquire the lock here? 12812 */ 12813 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12814 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 12815 /* 12816 * XXX do something here. 12817 */ 12818 } 12819 12820 msg.dt.sent_sg_entries = sg_entries_sent; 12821 } 12822 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12823 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) 12824 ctl_failover_io(io, /*have_lock*/ 0); 12825 12826 } else { 12827 12828 /* 12829 * Lookup the fe_datamove() function for this particular 12830 * front end. 12831 */ 12832 fe_datamove = 12833 control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12834 12835 fe_datamove(io); 12836 } 12837} 12838 12839static void 12840ctl_send_datamove_done(union ctl_io *io, int have_lock) 12841{ 12842 union ctl_ha_msg msg; 12843 int isc_status; 12844 12845 memset(&msg, 0, sizeof(msg)); 12846 12847 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12848 msg.hdr.original_sc = io; 12849 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12850 msg.hdr.nexus = io->io_hdr.nexus; 12851 msg.hdr.status = io->io_hdr.status; 12852 msg.scsi.tag_num = io->scsiio.tag_num; 12853 msg.scsi.tag_type = io->scsiio.tag_type; 12854 msg.scsi.scsi_status = io->scsiio.scsi_status; 12855 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12856 sizeof(io->scsiio.sense_data)); 12857 msg.scsi.sense_len = io->scsiio.sense_len; 12858 msg.scsi.sense_residual = io->scsiio.sense_residual; 12859 msg.scsi.fetd_status = io->io_hdr.port_status; 12860 msg.scsi.residual = io->scsiio.residual; 12861 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12862 12863 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12864 ctl_failover_io(io, /*have_lock*/ have_lock); 12865 return; 12866 } 12867 12868 isc_status = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0); 12869 if (isc_status > CTL_HA_STATUS_SUCCESS) { 12870 /* XXX do something if this fails */ 12871 } 12872 12873} 12874 12875/* 12876 * The DMA to the remote side is done, now we need to tell the other side 12877 * we're done so it can continue with its data movement. 12878 */ 12879static void 12880ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12881{ 12882 union ctl_io *io; 12883 12884 io = rq->context; 12885 12886 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12887 printf("%s: ISC DMA write failed with error %d", __func__, 12888 rq->ret); 12889 ctl_set_internal_failure(&io->scsiio, 12890 /*sks_valid*/ 1, 12891 /*retry_count*/ rq->ret); 12892 } 12893 12894 ctl_dt_req_free(rq); 12895 12896 /* 12897 * In this case, we had to malloc the memory locally. Free it. 12898 */ 12899 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12900 int i; 12901 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12902 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12903 } 12904 /* 12905 * The data is in local and remote memory, so now we need to send 12906 * status (good or back) back to the other side. 12907 */ 12908 ctl_send_datamove_done(io, /*have_lock*/ 0); 12909} 12910 12911/* 12912 * We've moved the data from the host/controller into local memory. Now we 12913 * need to push it over to the remote controller's memory. 12914 */ 12915static int 12916ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12917{ 12918 int retval; 12919 12920 retval = 0; 12921 12922 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12923 ctl_datamove_remote_write_cb); 12924 12925 return (retval); 12926} 12927 12928static void 12929ctl_datamove_remote_write(union ctl_io *io) 12930{ 12931 int retval; 12932 void (*fe_datamove)(union ctl_io *io); 12933 12934 /* 12935 * - Get the data from the host/HBA into local memory. 12936 * - DMA memory from the local controller to the remote controller. 12937 * - Send status back to the remote controller. 12938 */ 12939 12940 retval = ctl_datamove_remote_sgl_setup(io); 12941 if (retval != 0) 12942 return; 12943 12944 /* Switch the pointer over so the FETD knows what to do */ 12945 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12946 12947 /* 12948 * Use a custom move done callback, since we need to send completion 12949 * back to the other controller, not to the backend on this side. 12950 */ 12951 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12952 12953 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12954 12955 fe_datamove(io); 12956 12957 return; 12958 12959} 12960 12961static int 12962ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12963{ 12964#if 0 12965 char str[256]; 12966 char path_str[64]; 12967 struct sbuf sb; 12968#endif 12969 12970 /* 12971 * In this case, we had to malloc the memory locally. Free it. 12972 */ 12973 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12974 int i; 12975 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12976 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12977 } 12978 12979#if 0 12980 scsi_path_string(io, path_str, sizeof(path_str)); 12981 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12982 sbuf_cat(&sb, path_str); 12983 scsi_command_string(&io->scsiio, NULL, &sb); 12984 sbuf_printf(&sb, "\n"); 12985 sbuf_cat(&sb, path_str); 12986 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12987 io->scsiio.tag_num, io->scsiio.tag_type); 12988 sbuf_cat(&sb, path_str); 12989 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12990 io->io_hdr.flags, io->io_hdr.status); 12991 sbuf_finish(&sb); 12992 printk("%s", sbuf_data(&sb)); 12993#endif 12994 12995 12996 /* 12997 * The read is done, now we need to send status (good or bad) back 12998 * to the other side. 12999 */ 13000 ctl_send_datamove_done(io, /*have_lock*/ 0); 13001 13002 return (0); 13003} 13004 13005static void 13006ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 13007{ 13008 union ctl_io *io; 13009 void (*fe_datamove)(union ctl_io *io); 13010 13011 io = rq->context; 13012 13013 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 13014 printf("%s: ISC DMA read failed with error %d", __func__, 13015 rq->ret); 13016 ctl_set_internal_failure(&io->scsiio, 13017 /*sks_valid*/ 1, 13018 /*retry_count*/ rq->ret); 13019 } 13020 13021 ctl_dt_req_free(rq); 13022 13023 /* Switch the pointer over so the FETD knows what to do */ 13024 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 13025 13026 /* 13027 * Use a custom move done callback, since we need to send completion 13028 * back to the other controller, not to the backend on this side. 13029 */ 13030 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 13031 13032 /* XXX KDM add checks like the ones in ctl_datamove? */ 13033 13034 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13035 13036 fe_datamove(io); 13037} 13038 13039static int 13040ctl_datamove_remote_sgl_setup(union ctl_io *io) 13041{ 13042 struct ctl_sg_entry *local_sglist, *remote_sglist; 13043 struct ctl_sg_entry *local_dma_sglist, *remote_dma_sglist; 13044 struct ctl_softc *softc; 13045 int retval; 13046 int i; 13047 13048 retval = 0; 13049 softc = control_softc; 13050 13051 local_sglist = io->io_hdr.local_sglist; 13052 local_dma_sglist = io->io_hdr.local_dma_sglist; 13053 remote_sglist = io->io_hdr.remote_sglist; 13054 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13055 13056 if (io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) { 13057 for (i = 0; i < io->scsiio.kern_sg_entries; i++) { 13058 local_sglist[i].len = remote_sglist[i].len; 13059 13060 /* 13061 * XXX Detect the situation where the RS-level I/O 13062 * redirector on the other side has already read the 13063 * data off of the AOR RS on this side, and 13064 * transferred it to remote (mirror) memory on the 13065 * other side. Since we already have the data in 13066 * memory here, we just need to use it. 13067 * 13068 * XXX KDM this can probably be removed once we 13069 * get the cache device code in and take the 13070 * current AOR implementation out. 13071 */ 13072#ifdef NEEDTOPORT 13073 if ((remote_sglist[i].addr >= 13074 (void *)vtophys(softc->mirr->addr)) 13075 && (remote_sglist[i].addr < 13076 ((void *)vtophys(softc->mirr->addr) + 13077 CacheMirrorOffset))) { 13078 local_sglist[i].addr = remote_sglist[i].addr - 13079 CacheMirrorOffset; 13080 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13081 CTL_FLAG_DATA_IN) 13082 io->io_hdr.flags |= CTL_FLAG_REDIR_DONE; 13083 } else { 13084 local_sglist[i].addr = remote_sglist[i].addr + 13085 CacheMirrorOffset; 13086 } 13087#endif 13088#if 0 13089 printf("%s: local %p, remote %p, len %d\n", 13090 __func__, local_sglist[i].addr, 13091 remote_sglist[i].addr, local_sglist[i].len); 13092#endif 13093 } 13094 } else { 13095 uint32_t len_to_go; 13096 13097 /* 13098 * In this case, we don't have automatically allocated 13099 * memory for this I/O on this controller. This typically 13100 * happens with internal CTL I/O -- e.g. inquiry, mode 13101 * sense, etc. Anything coming from RAIDCore will have 13102 * a mirror area available. 13103 */ 13104 len_to_go = io->scsiio.kern_data_len; 13105 13106 /* 13107 * Clear the no datasync flag, we have to use malloced 13108 * buffers. 13109 */ 13110 io->io_hdr.flags &= ~CTL_FLAG_NO_DATASYNC; 13111 13112 /* 13113 * The difficult thing here is that the size of the various 13114 * S/G segments may be different than the size from the 13115 * remote controller. That'll make it harder when DMAing 13116 * the data back to the other side. 13117 */ 13118 for (i = 0; (i < sizeof(io->io_hdr.remote_sglist) / 13119 sizeof(io->io_hdr.remote_sglist[0])) && 13120 (len_to_go > 0); i++) { 13121 local_sglist[i].len = ctl_min(len_to_go, 131072); 13122 CTL_SIZE_8B(local_dma_sglist[i].len, 13123 local_sglist[i].len); 13124 local_sglist[i].addr = 13125 malloc(local_dma_sglist[i].len, M_CTL,M_WAITOK); 13126 13127 local_dma_sglist[i].addr = local_sglist[i].addr; 13128 13129 if (local_sglist[i].addr == NULL) { 13130 int j; 13131 13132 printf("malloc failed for %zd bytes!", 13133 local_dma_sglist[i].len); 13134 for (j = 0; j < i; j++) { 13135 free(local_sglist[j].addr, M_CTL); 13136 } 13137 ctl_set_internal_failure(&io->scsiio, 13138 /*sks_valid*/ 1, 13139 /*retry_count*/ 4857); 13140 retval = 1; 13141 goto bailout_error; 13142 13143 } 13144 /* XXX KDM do we need a sync here? */ 13145 13146 len_to_go -= local_sglist[i].len; 13147 } 13148 /* 13149 * Reset the number of S/G entries accordingly. The 13150 * original number of S/G entries is available in 13151 * rem_sg_entries. 13152 */ 13153 io->scsiio.kern_sg_entries = i; 13154 13155#if 0 13156 printf("%s: kern_sg_entries = %d\n", __func__, 13157 io->scsiio.kern_sg_entries); 13158 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13159 printf("%s: sg[%d] = %p, %d (DMA: %d)\n", __func__, i, 13160 local_sglist[i].addr, local_sglist[i].len, 13161 local_dma_sglist[i].len); 13162#endif 13163 } 13164 13165 13166 return (retval); 13167 13168bailout_error: 13169 13170 ctl_send_datamove_done(io, /*have_lock*/ 0); 13171 13172 return (retval); 13173} 13174 13175static int 13176ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 13177 ctl_ha_dt_cb callback) 13178{ 13179 struct ctl_ha_dt_req *rq; 13180 struct ctl_sg_entry *remote_sglist, *local_sglist; 13181 struct ctl_sg_entry *remote_dma_sglist, *local_dma_sglist; 13182 uint32_t local_used, remote_used, total_used; 13183 int retval; 13184 int i, j; 13185 13186 retval = 0; 13187 13188 rq = ctl_dt_req_alloc(); 13189 13190 /* 13191 * If we failed to allocate the request, and if the DMA didn't fail 13192 * anyway, set busy status. This is just a resource allocation 13193 * failure. 13194 */ 13195 if ((rq == NULL) 13196 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)) 13197 ctl_set_busy(&io->scsiio); 13198 13199 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 13200 13201 if (rq != NULL) 13202 ctl_dt_req_free(rq); 13203 13204 /* 13205 * The data move failed. We need to return status back 13206 * to the other controller. No point in trying to DMA 13207 * data to the remote controller. 13208 */ 13209 13210 ctl_send_datamove_done(io, /*have_lock*/ 0); 13211 13212 retval = 1; 13213 13214 goto bailout; 13215 } 13216 13217 local_sglist = io->io_hdr.local_sglist; 13218 local_dma_sglist = io->io_hdr.local_dma_sglist; 13219 remote_sglist = io->io_hdr.remote_sglist; 13220 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13221 local_used = 0; 13222 remote_used = 0; 13223 total_used = 0; 13224 13225 if (io->io_hdr.flags & CTL_FLAG_REDIR_DONE) { 13226 rq->ret = CTL_HA_STATUS_SUCCESS; 13227 rq->context = io; 13228 callback(rq); 13229 goto bailout; 13230 } 13231 13232 /* 13233 * Pull/push the data over the wire from/to the other controller. 13234 * This takes into account the possibility that the local and 13235 * remote sglists may not be identical in terms of the size of 13236 * the elements and the number of elements. 13237 * 13238 * One fundamental assumption here is that the length allocated for 13239 * both the local and remote sglists is identical. Otherwise, we've 13240 * essentially got a coding error of some sort. 13241 */ 13242 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 13243 int isc_ret; 13244 uint32_t cur_len, dma_length; 13245 uint8_t *tmp_ptr; 13246 13247 rq->id = CTL_HA_DATA_CTL; 13248 rq->command = command; 13249 rq->context = io; 13250 13251 /* 13252 * Both pointers should be aligned. But it is possible 13253 * that the allocation length is not. They should both 13254 * also have enough slack left over at the end, though, 13255 * to round up to the next 8 byte boundary. 13256 */ 13257 cur_len = ctl_min(local_sglist[i].len - local_used, 13258 remote_sglist[j].len - remote_used); 13259 13260 /* 13261 * In this case, we have a size issue and need to decrease 13262 * the size, except in the case where we actually have less 13263 * than 8 bytes left. In that case, we need to increase 13264 * the DMA length to get the last bit. 13265 */ 13266 if ((cur_len & 0x7) != 0) { 13267 if (cur_len > 0x7) { 13268 cur_len = cur_len - (cur_len & 0x7); 13269 dma_length = cur_len; 13270 } else { 13271 CTL_SIZE_8B(dma_length, cur_len); 13272 } 13273 13274 } else 13275 dma_length = cur_len; 13276 13277 /* 13278 * If we had to allocate memory for this I/O, instead of using 13279 * the non-cached mirror memory, we'll need to flush the cache 13280 * before trying to DMA to the other controller. 13281 * 13282 * We could end up doing this multiple times for the same 13283 * segment if we have a larger local segment than remote 13284 * segment. That shouldn't be an issue. 13285 */ 13286 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 13287 /* 13288 * XXX KDM use bus_dmamap_sync() here. 13289 */ 13290 } 13291 13292 rq->size = dma_length; 13293 13294 tmp_ptr = (uint8_t *)local_sglist[i].addr; 13295 tmp_ptr += local_used; 13296 13297 /* Use physical addresses when talking to ISC hardware */ 13298 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 13299 /* XXX KDM use busdma */ 13300#if 0 13301 rq->local = vtophys(tmp_ptr); 13302#endif 13303 } else 13304 rq->local = tmp_ptr; 13305 13306 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 13307 tmp_ptr += remote_used; 13308 rq->remote = tmp_ptr; 13309 13310 rq->callback = NULL; 13311 13312 local_used += cur_len; 13313 if (local_used >= local_sglist[i].len) { 13314 i++; 13315 local_used = 0; 13316 } 13317 13318 remote_used += cur_len; 13319 if (remote_used >= remote_sglist[j].len) { 13320 j++; 13321 remote_used = 0; 13322 } 13323 total_used += cur_len; 13324 13325 if (total_used >= io->scsiio.kern_data_len) 13326 rq->callback = callback; 13327 13328 if ((rq->size & 0x7) != 0) { 13329 printf("%s: warning: size %d is not on 8b boundary\n", 13330 __func__, rq->size); 13331 } 13332 if (((uintptr_t)rq->local & 0x7) != 0) { 13333 printf("%s: warning: local %p not on 8b boundary\n", 13334 __func__, rq->local); 13335 } 13336 if (((uintptr_t)rq->remote & 0x7) != 0) { 13337 printf("%s: warning: remote %p not on 8b boundary\n", 13338 __func__, rq->local); 13339 } 13340#if 0 13341 printf("%s: %s: local %#x remote %#x size %d\n", __func__, 13342 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13343 rq->local, rq->remote, rq->size); 13344#endif 13345 13346 isc_ret = ctl_dt_single(rq); 13347 if (isc_ret == CTL_HA_STATUS_WAIT) 13348 continue; 13349 13350 if (isc_ret == CTL_HA_STATUS_DISCONNECT) { 13351 rq->ret = CTL_HA_STATUS_SUCCESS; 13352 } else { 13353 rq->ret = isc_ret; 13354 } 13355 callback(rq); 13356 goto bailout; 13357 } 13358 13359bailout: 13360 return (retval); 13361 13362} 13363 13364static void 13365ctl_datamove_remote_read(union ctl_io *io) 13366{ 13367 int retval; 13368 int i; 13369 13370 /* 13371 * This will send an error to the other controller in the case of a 13372 * failure. 13373 */ 13374 retval = ctl_datamove_remote_sgl_setup(io); 13375 if (retval != 0) 13376 return; 13377 13378 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13379 ctl_datamove_remote_read_cb); 13380 if ((retval != 0) 13381 && ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0)) { 13382 /* 13383 * Make sure we free memory if there was an error.. The 13384 * ctl_datamove_remote_xfer() function will send the 13385 * datamove done message, or call the callback with an 13386 * error if there is a problem. 13387 */ 13388 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13389 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13390 } 13391 13392 return; 13393} 13394 13395/* 13396 * Process a datamove request from the other controller. This is used for 13397 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13398 * first. Once that is complete, the data gets DMAed into the remote 13399 * controller's memory. For reads, we DMA from the remote controller's 13400 * memory into our memory first, and then move it out to the FETD. 13401 */ 13402static void 13403ctl_datamove_remote(union ctl_io *io) 13404{ 13405 struct ctl_softc *softc; 13406 13407 softc = control_softc; 13408 13409 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 13410 13411 /* 13412 * Note that we look for an aborted I/O here, but don't do some of 13413 * the other checks that ctl_datamove() normally does. 13414 * We don't need to run the datamove delay code, since that should 13415 * have been done if need be on the other controller. 13416 */ 13417 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13418 printf("%s: tag 0x%04x on (%d:%d:%d:%d) aborted\n", __func__, 13419 io->scsiio.tag_num, io->io_hdr.nexus.initid.id, 13420 io->io_hdr.nexus.targ_port, 13421 io->io_hdr.nexus.targ_target.id, 13422 io->io_hdr.nexus.targ_lun); 13423 io->io_hdr.port_status = 31338; 13424 ctl_send_datamove_done(io, /*have_lock*/ 0); 13425 return; 13426 } 13427 13428 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) { 13429 ctl_datamove_remote_write(io); 13430 } else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN){ 13431 ctl_datamove_remote_read(io); 13432 } else { 13433 union ctl_ha_msg msg; 13434 struct scsi_sense_data *sense; 13435 uint8_t sks[3]; 13436 int retry_count; 13437 13438 memset(&msg, 0, sizeof(msg)); 13439 13440 msg.hdr.msg_type = CTL_MSG_BAD_JUJU; 13441 msg.hdr.status = CTL_SCSI_ERROR; 13442 msg.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 13443 13444 retry_count = 4243; 13445 13446 sense = &msg.scsi.sense_data; 13447 sks[0] = SSD_SCS_VALID; 13448 sks[1] = (retry_count >> 8) & 0xff; 13449 sks[2] = retry_count & 0xff; 13450 13451 /* "Internal target failure" */ 13452 scsi_set_sense_data(sense, 13453 /*sense_format*/ SSD_TYPE_NONE, 13454 /*current_error*/ 1, 13455 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 13456 /*asc*/ 0x44, 13457 /*ascq*/ 0x00, 13458 /*type*/ SSD_ELEM_SKS, 13459 /*size*/ sizeof(sks), 13460 /*data*/ sks, 13461 SSD_ELEM_NONE); 13462 13463 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13464 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13465 ctl_failover_io(io, /*have_lock*/ 1); 13466 return; 13467 } 13468 13469 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0) > 13470 CTL_HA_STATUS_SUCCESS) { 13471 /* XXX KDM what to do if this fails? */ 13472 } 13473 return; 13474 } 13475 13476} 13477 13478static int 13479ctl_process_done(union ctl_io *io) 13480{ 13481 struct ctl_lun *lun; 13482 struct ctl_softc *ctl_softc = control_softc; 13483 void (*fe_done)(union ctl_io *io); 13484 uint32_t targ_port = ctl_port_idx(io->io_hdr.nexus.targ_port); 13485 13486 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13487 13488 fe_done = 13489 control_softc->ctl_ports[targ_port]->fe_done; 13490 13491#ifdef CTL_TIME_IO 13492 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13493 char str[256]; 13494 char path_str[64]; 13495 struct sbuf sb; 13496 13497 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13498 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13499 13500 sbuf_cat(&sb, path_str); 13501 switch (io->io_hdr.io_type) { 13502 case CTL_IO_SCSI: 13503 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13504 sbuf_printf(&sb, "\n"); 13505 sbuf_cat(&sb, path_str); 13506 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13507 io->scsiio.tag_num, io->scsiio.tag_type); 13508 break; 13509 case CTL_IO_TASK: 13510 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13511 "Tag Type: %d\n", io->taskio.task_action, 13512 io->taskio.tag_num, io->taskio.tag_type); 13513 break; 13514 default: 13515 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13516 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13517 break; 13518 } 13519 sbuf_cat(&sb, path_str); 13520 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13521 (intmax_t)time_uptime - io->io_hdr.start_time); 13522 sbuf_finish(&sb); 13523 printf("%s", sbuf_data(&sb)); 13524 } 13525#endif /* CTL_TIME_IO */ 13526 13527 switch (io->io_hdr.io_type) { 13528 case CTL_IO_SCSI: 13529 break; 13530 case CTL_IO_TASK: 13531 if (bootverbose || (ctl_debug & CTL_DEBUG_INFO)) 13532 ctl_io_error_print(io, NULL); 13533 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 13534 ctl_free_io(io); 13535 else 13536 fe_done(io); 13537 return (CTL_RETVAL_COMPLETE); 13538 default: 13539 panic("ctl_process_done: invalid io type %d\n", 13540 io->io_hdr.io_type); 13541 break; /* NOTREACHED */ 13542 } 13543 13544 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13545 if (lun == NULL) { 13546 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13547 io->io_hdr.nexus.targ_mapped_lun)); 13548 goto bailout; 13549 } 13550 13551 mtx_lock(&lun->lun_lock); 13552 13553 /* 13554 * Check to see if we have any errors to inject here. We only 13555 * inject errors for commands that don't already have errors set. 13556 */ 13557 if ((STAILQ_FIRST(&lun->error_list) != NULL) && 13558 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) && 13559 ((io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0)) 13560 ctl_inject_error(lun, io); 13561 13562 /* 13563 * XXX KDM how do we treat commands that aren't completed 13564 * successfully? 13565 * 13566 * XXX KDM should we also track I/O latency? 13567 */ 13568 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13569 io->io_hdr.io_type == CTL_IO_SCSI) { 13570#ifdef CTL_TIME_IO 13571 struct bintime cur_bt; 13572#endif 13573 int type; 13574 13575 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13576 CTL_FLAG_DATA_IN) 13577 type = CTL_STATS_READ; 13578 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13579 CTL_FLAG_DATA_OUT) 13580 type = CTL_STATS_WRITE; 13581 else 13582 type = CTL_STATS_NO_IO; 13583 13584 lun->stats.ports[targ_port].bytes[type] += 13585 io->scsiio.kern_total_len; 13586 lun->stats.ports[targ_port].operations[type]++; 13587#ifdef CTL_TIME_IO 13588 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13589 &io->io_hdr.dma_bt); 13590 lun->stats.ports[targ_port].num_dmas[type] += 13591 io->io_hdr.num_dmas; 13592 getbintime(&cur_bt); 13593 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13594 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13595#endif 13596 } 13597 13598 /* 13599 * Remove this from the OOA queue. 13600 */ 13601 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13602 13603 /* 13604 * Run through the blocked queue on this LUN and see if anything 13605 * has become unblocked, now that this transaction is done. 13606 */ 13607 ctl_check_blocked(lun); 13608 13609 /* 13610 * If the LUN has been invalidated, free it if there is nothing 13611 * left on its OOA queue. 13612 */ 13613 if ((lun->flags & CTL_LUN_INVALID) 13614 && TAILQ_EMPTY(&lun->ooa_queue)) { 13615 mtx_unlock(&lun->lun_lock); 13616 mtx_lock(&ctl_softc->ctl_lock); 13617 ctl_free_lun(lun); 13618 mtx_unlock(&ctl_softc->ctl_lock); 13619 } else 13620 mtx_unlock(&lun->lun_lock); 13621 13622bailout: 13623 13624 /* 13625 * If this command has been aborted, make sure we set the status 13626 * properly. The FETD is responsible for freeing the I/O and doing 13627 * whatever it needs to do to clean up its state. 13628 */ 13629 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13630 ctl_set_task_aborted(&io->scsiio); 13631 13632 /* 13633 * If enabled, print command error status. 13634 * We don't print UAs unless debugging was enabled explicitly. 13635 */ 13636 do { 13637 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) 13638 break; 13639 if (!bootverbose && (ctl_debug & CTL_DEBUG_INFO) == 0) 13640 break; 13641 if ((ctl_debug & CTL_DEBUG_INFO) == 0 && 13642 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SCSI_ERROR) && 13643 (io->scsiio.scsi_status == SCSI_STATUS_CHECK_COND)) { 13644 int error_code, sense_key, asc, ascq; 13645 13646 scsi_extract_sense_len(&io->scsiio.sense_data, 13647 io->scsiio.sense_len, &error_code, &sense_key, 13648 &asc, &ascq, /*show_errors*/ 0); 13649 if (sense_key == SSD_KEY_UNIT_ATTENTION) 13650 break; 13651 } 13652 13653 ctl_io_error_print(io, NULL); 13654 } while (0); 13655 13656 /* 13657 * Tell the FETD or the other shelf controller we're done with this 13658 * command. Note that only SCSI commands get to this point. Task 13659 * management commands are completed above. 13660 * 13661 * We only send status to the other controller if we're in XFER 13662 * mode. In SER_ONLY mode, the I/O is done on the controller that 13663 * received the I/O (from CTL's perspective), and so the status is 13664 * generated there. 13665 * 13666 * XXX KDM if we hold the lock here, we could cause a deadlock 13667 * if the frontend comes back in in this context to queue 13668 * something. 13669 */ 13670 if ((ctl_softc->ha_mode == CTL_HA_MODE_XFER) 13671 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 13672 union ctl_ha_msg msg; 13673 13674 memset(&msg, 0, sizeof(msg)); 13675 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13676 msg.hdr.original_sc = io->io_hdr.original_sc; 13677 msg.hdr.nexus = io->io_hdr.nexus; 13678 msg.hdr.status = io->io_hdr.status; 13679 msg.scsi.scsi_status = io->scsiio.scsi_status; 13680 msg.scsi.tag_num = io->scsiio.tag_num; 13681 msg.scsi.tag_type = io->scsiio.tag_type; 13682 msg.scsi.sense_len = io->scsiio.sense_len; 13683 msg.scsi.sense_residual = io->scsiio.sense_residual; 13684 msg.scsi.residual = io->scsiio.residual; 13685 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13686 sizeof(io->scsiio.sense_data)); 13687 /* 13688 * We copy this whether or not this is an I/O-related 13689 * command. Otherwise, we'd have to go and check to see 13690 * whether it's a read/write command, and it really isn't 13691 * worth it. 13692 */ 13693 memcpy(&msg.scsi.lbalen, 13694 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 13695 sizeof(msg.scsi.lbalen)); 13696 13697 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13698 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13699 /* XXX do something here */ 13700 } 13701 13702 ctl_free_io(io); 13703 } else 13704 fe_done(io); 13705 13706 return (CTL_RETVAL_COMPLETE); 13707} 13708 13709#ifdef CTL_WITH_CA 13710/* 13711 * Front end should call this if it doesn't do autosense. When the request 13712 * sense comes back in from the initiator, we'll dequeue this and send it. 13713 */ 13714int 13715ctl_queue_sense(union ctl_io *io) 13716{ 13717 struct ctl_lun *lun; 13718 struct ctl_softc *ctl_softc; 13719 uint32_t initidx, targ_lun; 13720 13721 ctl_softc = control_softc; 13722 13723 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13724 13725 /* 13726 * LUN lookup will likely move to the ctl_work_thread() once we 13727 * have our new queueing infrastructure (that doesn't put things on 13728 * a per-LUN queue initially). That is so that we can handle 13729 * things like an INQUIRY to a LUN that we don't have enabled. We 13730 * can't deal with that right now. 13731 */ 13732 mtx_lock(&ctl_softc->ctl_lock); 13733 13734 /* 13735 * If we don't have a LUN for this, just toss the sense 13736 * information. 13737 */ 13738 targ_lun = io->io_hdr.nexus.targ_lun; 13739 targ_lun = ctl_map_lun(io->io_hdr.nexus.targ_port, targ_lun); 13740 if ((targ_lun < CTL_MAX_LUNS) 13741 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 13742 lun = ctl_softc->ctl_luns[targ_lun]; 13743 else 13744 goto bailout; 13745 13746 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13747 13748 mtx_lock(&lun->lun_lock); 13749 /* 13750 * Already have CA set for this LUN...toss the sense information. 13751 */ 13752 if (ctl_is_set(lun->have_ca, initidx)) { 13753 mtx_unlock(&lun->lun_lock); 13754 goto bailout; 13755 } 13756 13757 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13758 ctl_min(sizeof(lun->pending_sense[initidx]), 13759 sizeof(io->scsiio.sense_data))); 13760 ctl_set_mask(lun->have_ca, initidx); 13761 mtx_unlock(&lun->lun_lock); 13762 13763bailout: 13764 mtx_unlock(&ctl_softc->ctl_lock); 13765 13766 ctl_free_io(io); 13767 13768 return (CTL_RETVAL_COMPLETE); 13769} 13770#endif 13771 13772/* 13773 * Primary command inlet from frontend ports. All SCSI and task I/O 13774 * requests must go through this function. 13775 */ 13776int 13777ctl_queue(union ctl_io *io) 13778{ 13779 struct ctl_softc *ctl_softc; 13780 13781 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13782 13783 ctl_softc = control_softc; 13784 13785#ifdef CTL_TIME_IO 13786 io->io_hdr.start_time = time_uptime; 13787 getbintime(&io->io_hdr.start_bt); 13788#endif /* CTL_TIME_IO */ 13789 13790 /* Map FE-specific LUN ID into global one. */ 13791 io->io_hdr.nexus.targ_mapped_lun = 13792 ctl_map_lun(io->io_hdr.nexus.targ_port, io->io_hdr.nexus.targ_lun); 13793 13794 switch (io->io_hdr.io_type) { 13795 case CTL_IO_SCSI: 13796 case CTL_IO_TASK: 13797 if (ctl_debug & CTL_DEBUG_CDB) 13798 ctl_io_print(io); 13799 ctl_enqueue_incoming(io); 13800 break; 13801 default: 13802 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13803 return (EINVAL); 13804 } 13805 13806 return (CTL_RETVAL_COMPLETE); 13807} 13808 13809#ifdef CTL_IO_DELAY 13810static void 13811ctl_done_timer_wakeup(void *arg) 13812{ 13813 union ctl_io *io; 13814 13815 io = (union ctl_io *)arg; 13816 ctl_done(io); 13817} 13818#endif /* CTL_IO_DELAY */ 13819 13820void 13821ctl_done(union ctl_io *io) 13822{ 13823 struct ctl_softc *ctl_softc; 13824 13825 ctl_softc = control_softc; 13826 13827 /* 13828 * Enable this to catch duplicate completion issues. 13829 */ 13830#if 0 13831 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13832 printf("%s: type %d msg %d cdb %x iptl: " 13833 "%d:%d:%d:%d tag 0x%04x " 13834 "flag %#x status %x\n", 13835 __func__, 13836 io->io_hdr.io_type, 13837 io->io_hdr.msg_type, 13838 io->scsiio.cdb[0], 13839 io->io_hdr.nexus.initid.id, 13840 io->io_hdr.nexus.targ_port, 13841 io->io_hdr.nexus.targ_target.id, 13842 io->io_hdr.nexus.targ_lun, 13843 (io->io_hdr.io_type == 13844 CTL_IO_TASK) ? 13845 io->taskio.tag_num : 13846 io->scsiio.tag_num, 13847 io->io_hdr.flags, 13848 io->io_hdr.status); 13849 } else 13850 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13851#endif 13852 13853 /* 13854 * This is an internal copy of an I/O, and should not go through 13855 * the normal done processing logic. 13856 */ 13857 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13858 return; 13859 13860 /* 13861 * We need to send a msg to the serializing shelf to finish the IO 13862 * as well. We don't send a finish message to the other shelf if 13863 * this is a task management command. Task management commands 13864 * aren't serialized in the OOA queue, but rather just executed on 13865 * both shelf controllers for commands that originated on that 13866 * controller. 13867 */ 13868 if ((io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC) 13869 && (io->io_hdr.io_type != CTL_IO_TASK)) { 13870 union ctl_ha_msg msg_io; 13871 13872 msg_io.hdr.msg_type = CTL_MSG_FINISH_IO; 13873 msg_io.hdr.serializing_sc = io->io_hdr.serializing_sc; 13874 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_io, 13875 sizeof(msg_io), 0 ) != CTL_HA_STATUS_SUCCESS) { 13876 } 13877 /* continue on to finish IO */ 13878 } 13879#ifdef CTL_IO_DELAY 13880 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13881 struct ctl_lun *lun; 13882 13883 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13884 13885 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13886 } else { 13887 struct ctl_lun *lun; 13888 13889 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13890 13891 if ((lun != NULL) 13892 && (lun->delay_info.done_delay > 0)) { 13893 struct callout *callout; 13894 13895 callout = (struct callout *)&io->io_hdr.timer_bytes; 13896 callout_init(callout, /*mpsafe*/ 1); 13897 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13898 callout_reset(callout, 13899 lun->delay_info.done_delay * hz, 13900 ctl_done_timer_wakeup, io); 13901 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13902 lun->delay_info.done_delay = 0; 13903 return; 13904 } 13905 } 13906#endif /* CTL_IO_DELAY */ 13907 13908 ctl_enqueue_done(io); 13909} 13910 13911int 13912ctl_isc(struct ctl_scsiio *ctsio) 13913{ 13914 struct ctl_lun *lun; 13915 int retval; 13916 13917 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13918 13919 CTL_DEBUG_PRINT(("ctl_isc: command: %02x\n", ctsio->cdb[0])); 13920 13921 CTL_DEBUG_PRINT(("ctl_isc: calling data_submit()\n")); 13922 13923 retval = lun->backend->data_submit((union ctl_io *)ctsio); 13924 13925 return (retval); 13926} 13927 13928 13929static void 13930ctl_work_thread(void *arg) 13931{ 13932 struct ctl_thread *thr = (struct ctl_thread *)arg; 13933 struct ctl_softc *softc = thr->ctl_softc; 13934 union ctl_io *io; 13935 int retval; 13936 13937 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13938 13939 for (;;) { 13940 retval = 0; 13941 13942 /* 13943 * We handle the queues in this order: 13944 * - ISC 13945 * - done queue (to free up resources, unblock other commands) 13946 * - RtR queue 13947 * - incoming queue 13948 * 13949 * If those queues are empty, we break out of the loop and 13950 * go to sleep. 13951 */ 13952 mtx_lock(&thr->queue_lock); 13953 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13954 if (io != NULL) { 13955 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13956 mtx_unlock(&thr->queue_lock); 13957 ctl_handle_isc(io); 13958 continue; 13959 } 13960 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13961 if (io != NULL) { 13962 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13963 /* clear any blocked commands, call fe_done */ 13964 mtx_unlock(&thr->queue_lock); 13965 retval = ctl_process_done(io); 13966 continue; 13967 } 13968 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13969 if (io != NULL) { 13970 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13971 mtx_unlock(&thr->queue_lock); 13972 if (io->io_hdr.io_type == CTL_IO_TASK) 13973 ctl_run_task(io); 13974 else 13975 ctl_scsiio_precheck(softc, &io->scsiio); 13976 continue; 13977 } 13978 if (!ctl_pause_rtr) { 13979 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13980 if (io != NULL) { 13981 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13982 mtx_unlock(&thr->queue_lock); 13983 retval = ctl_scsiio(&io->scsiio); 13984 if (retval != CTL_RETVAL_COMPLETE) 13985 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13986 continue; 13987 } 13988 } 13989 13990 /* Sleep until we have something to do. */ 13991 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13992 } 13993} 13994 13995static void 13996ctl_lun_thread(void *arg) 13997{ 13998 struct ctl_softc *softc = (struct ctl_softc *)arg; 13999 struct ctl_be_lun *be_lun; 14000 int retval; 14001 14002 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 14003 14004 for (;;) { 14005 retval = 0; 14006 mtx_lock(&softc->ctl_lock); 14007 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 14008 if (be_lun != NULL) { 14009 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 14010 mtx_unlock(&softc->ctl_lock); 14011 ctl_create_lun(be_lun); 14012 continue; 14013 } 14014 14015 /* Sleep until we have something to do. */ 14016 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 14017 PDROP | PRIBIO, "-", 0); 14018 } 14019} 14020 14021static void 14022ctl_thresh_thread(void *arg) 14023{ 14024 struct ctl_softc *softc = (struct ctl_softc *)arg; 14025 struct ctl_lun *lun; 14026 struct ctl_be_lun *be_lun; 14027 struct scsi_da_rw_recovery_page *rwpage; 14028 struct ctl_logical_block_provisioning_page *page; 14029 const char *attr; 14030 uint64_t thres, val; 14031 int i, e; 14032 14033 CTL_DEBUG_PRINT(("ctl_thresh_thread starting\n")); 14034 14035 for (;;) { 14036 mtx_lock(&softc->ctl_lock); 14037 STAILQ_FOREACH(lun, &softc->lun_list, links) { 14038 be_lun = lun->be_lun; 14039 if ((lun->flags & CTL_LUN_DISABLED) || 14040 (lun->flags & CTL_LUN_OFFLINE) || 14041 lun->backend->lun_attr == NULL) 14042 continue; 14043 rwpage = &lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT]; 14044 if ((rwpage->byte8 & SMS_RWER_LBPERE) == 0) 14045 continue; 14046 e = 0; 14047 page = &lun->mode_pages.lbp_page[CTL_PAGE_CURRENT]; 14048 for (i = 0; i < CTL_NUM_LBP_THRESH; i++) { 14049 if ((page->descr[i].flags & SLBPPD_ENABLED) == 0) 14050 continue; 14051 thres = scsi_4btoul(page->descr[i].count); 14052 thres <<= CTL_LBP_EXPONENT; 14053 switch (page->descr[i].resource) { 14054 case 0x01: 14055 attr = "blocksavail"; 14056 break; 14057 case 0x02: 14058 attr = "blocksused"; 14059 break; 14060 case 0xf1: 14061 attr = "poolblocksavail"; 14062 break; 14063 case 0xf2: 14064 attr = "poolblocksused"; 14065 break; 14066 default: 14067 continue; 14068 } 14069 mtx_unlock(&softc->ctl_lock); // XXX 14070 val = lun->backend->lun_attr( 14071 lun->be_lun->be_lun, attr); 14072 mtx_lock(&softc->ctl_lock); 14073 if (val == UINT64_MAX) 14074 continue; 14075 if ((page->descr[i].flags & SLBPPD_ARMING_MASK) 14076 == SLBPPD_ARMING_INC) 14077 e |= (val >= thres); 14078 else 14079 e |= (val <= thres); 14080 } 14081 mtx_lock(&lun->lun_lock); 14082 if (e) { 14083 if (lun->lasttpt == 0 || 14084 time_uptime - lun->lasttpt >= CTL_LBP_UA_PERIOD) { 14085 lun->lasttpt = time_uptime; 14086 ctl_est_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 14087 } 14088 } else { 14089 lun->lasttpt = 0; 14090 ctl_clr_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 14091 } 14092 mtx_unlock(&lun->lun_lock); 14093 } 14094 mtx_unlock(&softc->ctl_lock); 14095 pause("-", CTL_LBP_PERIOD * hz); 14096 } 14097} 14098 14099static void 14100ctl_enqueue_incoming(union ctl_io *io) 14101{ 14102 struct ctl_softc *softc = control_softc; 14103 struct ctl_thread *thr; 14104 u_int idx; 14105 14106 idx = (io->io_hdr.nexus.targ_port * 127 + 14107 io->io_hdr.nexus.initid.id) % worker_threads; 14108 thr = &softc->threads[idx]; 14109 mtx_lock(&thr->queue_lock); 14110 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 14111 mtx_unlock(&thr->queue_lock); 14112 wakeup(thr); 14113} 14114 14115static void 14116ctl_enqueue_rtr(union ctl_io *io) 14117{ 14118 struct ctl_softc *softc = control_softc; 14119 struct ctl_thread *thr; 14120 14121 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14122 mtx_lock(&thr->queue_lock); 14123 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 14124 mtx_unlock(&thr->queue_lock); 14125 wakeup(thr); 14126} 14127 14128static void 14129ctl_enqueue_done(union ctl_io *io) 14130{ 14131 struct ctl_softc *softc = control_softc; 14132 struct ctl_thread *thr; 14133 14134 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14135 mtx_lock(&thr->queue_lock); 14136 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 14137 mtx_unlock(&thr->queue_lock); 14138 wakeup(thr); 14139} 14140 14141static void 14142ctl_enqueue_isc(union ctl_io *io) 14143{ 14144 struct ctl_softc *softc = control_softc; 14145 struct ctl_thread *thr; 14146 14147 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14148 mtx_lock(&thr->queue_lock); 14149 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 14150 mtx_unlock(&thr->queue_lock); 14151 wakeup(thr); 14152} 14153 14154/* Initialization and failover */ 14155 14156void 14157ctl_init_isc_msg(void) 14158{ 14159 printf("CTL: Still calling this thing\n"); 14160} 14161 14162/* 14163 * Init component 14164 * Initializes component into configuration defined by bootMode 14165 * (see hasc-sv.c) 14166 * returns hasc_Status: 14167 * OK 14168 * ERROR - fatal error 14169 */ 14170static ctl_ha_comp_status 14171ctl_isc_init(struct ctl_ha_component *c) 14172{ 14173 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14174 14175 c->status = ret; 14176 return ret; 14177} 14178 14179/* Start component 14180 * Starts component in state requested. If component starts successfully, 14181 * it must set its own state to the requestrd state 14182 * When requested state is HASC_STATE_HA, the component may refine it 14183 * by adding _SLAVE or _MASTER flags. 14184 * Currently allowed state transitions are: 14185 * UNKNOWN->HA - initial startup 14186 * UNKNOWN->SINGLE - initial startup when no parter detected 14187 * HA->SINGLE - failover 14188 * returns ctl_ha_comp_status: 14189 * OK - component successfully started in requested state 14190 * FAILED - could not start the requested state, failover may 14191 * be possible 14192 * ERROR - fatal error detected, no future startup possible 14193 */ 14194static ctl_ha_comp_status 14195ctl_isc_start(struct ctl_ha_component *c, ctl_ha_state state) 14196{ 14197 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14198 14199 printf("%s: go\n", __func__); 14200 14201 // UNKNOWN->HA or UNKNOWN->SINGLE (bootstrap) 14202 if (c->state == CTL_HA_STATE_UNKNOWN ) { 14203 control_softc->is_single = 0; 14204 if (ctl_ha_msg_create(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 14205 != CTL_HA_STATUS_SUCCESS) { 14206 printf("ctl_isc_start: ctl_ha_msg_create failed.\n"); 14207 ret = CTL_HA_COMP_STATUS_ERROR; 14208 } 14209 } else if (CTL_HA_STATE_IS_HA(c->state) 14210 && CTL_HA_STATE_IS_SINGLE(state)){ 14211 // HA->SINGLE transition 14212 ctl_failover(); 14213 control_softc->is_single = 1; 14214 } else { 14215 printf("ctl_isc_start:Invalid state transition %X->%X\n", 14216 c->state, state); 14217 ret = CTL_HA_COMP_STATUS_ERROR; 14218 } 14219 if (CTL_HA_STATE_IS_SINGLE(state)) 14220 control_softc->is_single = 1; 14221 14222 c->state = state; 14223 c->status = ret; 14224 return ret; 14225} 14226 14227/* 14228 * Quiesce component 14229 * The component must clear any error conditions (set status to OK) and 14230 * prepare itself to another Start call 14231 * returns ctl_ha_comp_status: 14232 * OK 14233 * ERROR 14234 */ 14235static ctl_ha_comp_status 14236ctl_isc_quiesce(struct ctl_ha_component *c) 14237{ 14238 int ret = CTL_HA_COMP_STATUS_OK; 14239 14240 ctl_pause_rtr = 1; 14241 c->status = ret; 14242 return ret; 14243} 14244 14245struct ctl_ha_component ctl_ha_component_ctlisc = 14246{ 14247 .name = "CTL ISC", 14248 .state = CTL_HA_STATE_UNKNOWN, 14249 .init = ctl_isc_init, 14250 .start = ctl_isc_start, 14251 .quiesce = ctl_isc_quiesce 14252}; 14253 14254/* 14255 * vim: ts=8 14256 */ 14257