ctl.c revision 275455
1/*- 2 * Copyright (c) 2003-2009 Silicon Graphics International Corp. 3 * Copyright (c) 2012 The FreeBSD Foundation 4 * All rights reserved. 5 * 6 * Portions of this software were developed by Edward Tomasz Napierala 7 * under sponsorship from the FreeBSD Foundation. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions, and the following disclaimer, 14 * without modification. 15 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 16 * substantially similar to the "NO WARRANTY" disclaimer below 17 * ("Disclaimer") and any redistribution must be conditioned upon 18 * including a substantially similar Disclaimer requirement for further 19 * binary redistribution. 20 * 21 * NO WARRANTY 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 23 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 24 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 25 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 26 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 30 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 31 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32 * POSSIBILITY OF SUCH DAMAGES. 33 * 34 * $Id: //depot/users/kenm/FreeBSD-test2/sys/cam/ctl/ctl.c#8 $ 35 */ 36/* 37 * CAM Target Layer, a SCSI device emulation subsystem. 38 * 39 * Author: Ken Merry <ken@FreeBSD.org> 40 */ 41 42#define _CTL_C 43 44#include <sys/cdefs.h> 45__FBSDID("$FreeBSD: head/sys/cam/ctl/ctl.c 275455 2014-12-03 10:39:47Z mav $"); 46 47#include <sys/param.h> 48#include <sys/systm.h> 49#include <sys/ctype.h> 50#include <sys/kernel.h> 51#include <sys/types.h> 52#include <sys/kthread.h> 53#include <sys/bio.h> 54#include <sys/fcntl.h> 55#include <sys/lock.h> 56#include <sys/module.h> 57#include <sys/mutex.h> 58#include <sys/condvar.h> 59#include <sys/malloc.h> 60#include <sys/conf.h> 61#include <sys/ioccom.h> 62#include <sys/queue.h> 63#include <sys/sbuf.h> 64#include <sys/smp.h> 65#include <sys/endian.h> 66#include <sys/sysctl.h> 67#include <vm/uma.h> 68 69#include <cam/cam.h> 70#include <cam/scsi/scsi_all.h> 71#include <cam/scsi/scsi_da.h> 72#include <cam/ctl/ctl_io.h> 73#include <cam/ctl/ctl.h> 74#include <cam/ctl/ctl_frontend.h> 75#include <cam/ctl/ctl_frontend_internal.h> 76#include <cam/ctl/ctl_util.h> 77#include <cam/ctl/ctl_backend.h> 78#include <cam/ctl/ctl_ioctl.h> 79#include <cam/ctl/ctl_ha.h> 80#include <cam/ctl/ctl_private.h> 81#include <cam/ctl/ctl_debug.h> 82#include <cam/ctl/ctl_scsi_all.h> 83#include <cam/ctl/ctl_error.h> 84 85struct ctl_softc *control_softc = NULL; 86 87/* 88 * Size and alignment macros needed for Copan-specific HA hardware. These 89 * can go away when the HA code is re-written, and uses busdma for any 90 * hardware. 91 */ 92#define CTL_ALIGN_8B(target, source, type) \ 93 if (((uint32_t)source & 0x7) != 0) \ 94 target = (type)(source + (0x8 - ((uint32_t)source & 0x7)));\ 95 else \ 96 target = (type)source; 97 98#define CTL_SIZE_8B(target, size) \ 99 if ((size & 0x7) != 0) \ 100 target = size + (0x8 - (size & 0x7)); \ 101 else \ 102 target = size; 103 104#define CTL_ALIGN_8B_MARGIN 16 105 106/* 107 * Template mode pages. 108 */ 109 110/* 111 * Note that these are default values only. The actual values will be 112 * filled in when the user does a mode sense. 113 */ 114static struct copan_debugconf_subpage debugconf_page_default = { 115 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 116 DBGCNF_SUBPAGE_CODE, /* subpage */ 117 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 118 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 119 DBGCNF_VERSION, /* page_version */ 120 {CTL_TIME_IO_DEFAULT_SECS>>8, 121 CTL_TIME_IO_DEFAULT_SECS>>0}, /* ctl_time_io_secs */ 122}; 123 124static struct copan_debugconf_subpage debugconf_page_changeable = { 125 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 126 DBGCNF_SUBPAGE_CODE, /* subpage */ 127 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 128 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 129 0, /* page_version */ 130 {0xff,0xff}, /* ctl_time_io_secs */ 131}; 132 133static struct scsi_da_rw_recovery_page rw_er_page_default = { 134 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 135 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 136 /*byte3*/SMS_RWER_AWRE|SMS_RWER_ARRE, 137 /*read_retry_count*/0, 138 /*correction_span*/0, 139 /*head_offset_count*/0, 140 /*data_strobe_offset_cnt*/0, 141 /*byte8*/SMS_RWER_LBPERE, 142 /*write_retry_count*/0, 143 /*reserved2*/0, 144 /*recovery_time_limit*/{0, 0}, 145}; 146 147static struct scsi_da_rw_recovery_page rw_er_page_changeable = { 148 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 149 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 150 /*byte3*/0, 151 /*read_retry_count*/0, 152 /*correction_span*/0, 153 /*head_offset_count*/0, 154 /*data_strobe_offset_cnt*/0, 155 /*byte8*/0, 156 /*write_retry_count*/0, 157 /*reserved2*/0, 158 /*recovery_time_limit*/{0, 0}, 159}; 160 161static struct scsi_format_page format_page_default = { 162 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 163 /*page_length*/sizeof(struct scsi_format_page) - 2, 164 /*tracks_per_zone*/ {0, 0}, 165 /*alt_sectors_per_zone*/ {0, 0}, 166 /*alt_tracks_per_zone*/ {0, 0}, 167 /*alt_tracks_per_lun*/ {0, 0}, 168 /*sectors_per_track*/ {(CTL_DEFAULT_SECTORS_PER_TRACK >> 8) & 0xff, 169 CTL_DEFAULT_SECTORS_PER_TRACK & 0xff}, 170 /*bytes_per_sector*/ {0, 0}, 171 /*interleave*/ {0, 0}, 172 /*track_skew*/ {0, 0}, 173 /*cylinder_skew*/ {0, 0}, 174 /*flags*/ SFP_HSEC, 175 /*reserved*/ {0, 0, 0} 176}; 177 178static struct scsi_format_page format_page_changeable = { 179 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 180 /*page_length*/sizeof(struct scsi_format_page) - 2, 181 /*tracks_per_zone*/ {0, 0}, 182 /*alt_sectors_per_zone*/ {0, 0}, 183 /*alt_tracks_per_zone*/ {0, 0}, 184 /*alt_tracks_per_lun*/ {0, 0}, 185 /*sectors_per_track*/ {0, 0}, 186 /*bytes_per_sector*/ {0, 0}, 187 /*interleave*/ {0, 0}, 188 /*track_skew*/ {0, 0}, 189 /*cylinder_skew*/ {0, 0}, 190 /*flags*/ 0, 191 /*reserved*/ {0, 0, 0} 192}; 193 194static struct scsi_rigid_disk_page rigid_disk_page_default = { 195 /*page_code*/SMS_RIGID_DISK_PAGE, 196 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 197 /*cylinders*/ {0, 0, 0}, 198 /*heads*/ CTL_DEFAULT_HEADS, 199 /*start_write_precomp*/ {0, 0, 0}, 200 /*start_reduced_current*/ {0, 0, 0}, 201 /*step_rate*/ {0, 0}, 202 /*landing_zone_cylinder*/ {0, 0, 0}, 203 /*rpl*/ SRDP_RPL_DISABLED, 204 /*rotational_offset*/ 0, 205 /*reserved1*/ 0, 206 /*rotation_rate*/ {(CTL_DEFAULT_ROTATION_RATE >> 8) & 0xff, 207 CTL_DEFAULT_ROTATION_RATE & 0xff}, 208 /*reserved2*/ {0, 0} 209}; 210 211static struct scsi_rigid_disk_page rigid_disk_page_changeable = { 212 /*page_code*/SMS_RIGID_DISK_PAGE, 213 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 214 /*cylinders*/ {0, 0, 0}, 215 /*heads*/ 0, 216 /*start_write_precomp*/ {0, 0, 0}, 217 /*start_reduced_current*/ {0, 0, 0}, 218 /*step_rate*/ {0, 0}, 219 /*landing_zone_cylinder*/ {0, 0, 0}, 220 /*rpl*/ 0, 221 /*rotational_offset*/ 0, 222 /*reserved1*/ 0, 223 /*rotation_rate*/ {0, 0}, 224 /*reserved2*/ {0, 0} 225}; 226 227static struct scsi_caching_page caching_page_default = { 228 /*page_code*/SMS_CACHING_PAGE, 229 /*page_length*/sizeof(struct scsi_caching_page) - 2, 230 /*flags1*/ SCP_DISC | SCP_WCE, 231 /*ret_priority*/ 0, 232 /*disable_pf_transfer_len*/ {0xff, 0xff}, 233 /*min_prefetch*/ {0, 0}, 234 /*max_prefetch*/ {0xff, 0xff}, 235 /*max_pf_ceiling*/ {0xff, 0xff}, 236 /*flags2*/ 0, 237 /*cache_segments*/ 0, 238 /*cache_seg_size*/ {0, 0}, 239 /*reserved*/ 0, 240 /*non_cache_seg_size*/ {0, 0, 0} 241}; 242 243static struct scsi_caching_page caching_page_changeable = { 244 /*page_code*/SMS_CACHING_PAGE, 245 /*page_length*/sizeof(struct scsi_caching_page) - 2, 246 /*flags1*/ SCP_WCE | SCP_RCD, 247 /*ret_priority*/ 0, 248 /*disable_pf_transfer_len*/ {0, 0}, 249 /*min_prefetch*/ {0, 0}, 250 /*max_prefetch*/ {0, 0}, 251 /*max_pf_ceiling*/ {0, 0}, 252 /*flags2*/ 0, 253 /*cache_segments*/ 0, 254 /*cache_seg_size*/ {0, 0}, 255 /*reserved*/ 0, 256 /*non_cache_seg_size*/ {0, 0, 0} 257}; 258 259static struct scsi_control_page control_page_default = { 260 /*page_code*/SMS_CONTROL_MODE_PAGE, 261 /*page_length*/sizeof(struct scsi_control_page) - 2, 262 /*rlec*/0, 263 /*queue_flags*/SCP_QUEUE_ALG_RESTRICTED, 264 /*eca_and_aen*/0, 265 /*flags4*/SCP_TAS, 266 /*aen_holdoff_period*/{0, 0}, 267 /*busy_timeout_period*/{0, 0}, 268 /*extended_selftest_completion_time*/{0, 0} 269}; 270 271static struct scsi_control_page control_page_changeable = { 272 /*page_code*/SMS_CONTROL_MODE_PAGE, 273 /*page_length*/sizeof(struct scsi_control_page) - 2, 274 /*rlec*/SCP_DSENSE, 275 /*queue_flags*/SCP_QUEUE_ALG_MASK, 276 /*eca_and_aen*/SCP_SWP, 277 /*flags4*/0, 278 /*aen_holdoff_period*/{0, 0}, 279 /*busy_timeout_period*/{0, 0}, 280 /*extended_selftest_completion_time*/{0, 0} 281}; 282 283static struct scsi_info_exceptions_page ie_page_default = { 284 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 285 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 286 /*info_flags*/SIEP_FLAGS_DEXCPT, 287 /*mrie*/0, 288 /*interval_timer*/{0, 0, 0, 0}, 289 /*report_count*/{0, 0, 0, 0} 290}; 291 292static struct scsi_info_exceptions_page ie_page_changeable = { 293 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 294 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 295 /*info_flags*/0, 296 /*mrie*/0, 297 /*interval_timer*/{0, 0, 0, 0}, 298 /*report_count*/{0, 0, 0, 0} 299}; 300 301#define CTL_LBPM_LEN (sizeof(struct ctl_logical_block_provisioning_page) - 4) 302 303static struct ctl_logical_block_provisioning_page lbp_page_default = {{ 304 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 305 /*subpage_code*/0x02, 306 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 307 /*flags*/0, 308 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 309 /*descr*/{}}, 310 {{/*flags*/0, 311 /*resource*/0x01, 312 /*reserved*/{0, 0}, 313 /*count*/{0, 0, 0, 0}}, 314 {/*flags*/0, 315 /*resource*/0x02, 316 /*reserved*/{0, 0}, 317 /*count*/{0, 0, 0, 0}}, 318 {/*flags*/0, 319 /*resource*/0xf1, 320 /*reserved*/{0, 0}, 321 /*count*/{0, 0, 0, 0}}, 322 {/*flags*/0, 323 /*resource*/0xf2, 324 /*reserved*/{0, 0}, 325 /*count*/{0, 0, 0, 0}} 326 } 327}; 328 329static struct ctl_logical_block_provisioning_page lbp_page_changeable = {{ 330 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 331 /*subpage_code*/0x02, 332 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 333 /*flags*/0, 334 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 335 /*descr*/{}}, 336 {{/*flags*/0, 337 /*resource*/0, 338 /*reserved*/{0, 0}, 339 /*count*/{0, 0, 0, 0}}, 340 {/*flags*/0, 341 /*resource*/0, 342 /*reserved*/{0, 0}, 343 /*count*/{0, 0, 0, 0}}, 344 {/*flags*/0, 345 /*resource*/0, 346 /*reserved*/{0, 0}, 347 /*count*/{0, 0, 0, 0}}, 348 {/*flags*/0, 349 /*resource*/0, 350 /*reserved*/{0, 0}, 351 /*count*/{0, 0, 0, 0}} 352 } 353}; 354 355/* 356 * XXX KDM move these into the softc. 357 */ 358static int rcv_sync_msg; 359static uint8_t ctl_pause_rtr; 360 361SYSCTL_NODE(_kern_cam, OID_AUTO, ctl, CTLFLAG_RD, 0, "CAM Target Layer"); 362static int worker_threads = -1; 363SYSCTL_INT(_kern_cam_ctl, OID_AUTO, worker_threads, CTLFLAG_RDTUN, 364 &worker_threads, 1, "Number of worker threads"); 365static int ctl_debug = CTL_DEBUG_NONE; 366SYSCTL_INT(_kern_cam_ctl, OID_AUTO, debug, CTLFLAG_RWTUN, 367 &ctl_debug, 0, "Enabled debug flags"); 368 369/* 370 * Supported pages (0x00), Serial number (0x80), Device ID (0x83), 371 * Extended INQUIRY Data (0x86), Mode Page Policy (0x87), 372 * SCSI Ports (0x88), Third-party Copy (0x8F), Block limits (0xB0), 373 * Block Device Characteristics (0xB1) and Logical Block Provisioning (0xB2) 374 */ 375#define SCSI_EVPD_NUM_SUPPORTED_PAGES 10 376 377static void ctl_isc_event_handler(ctl_ha_channel chanel, ctl_ha_event event, 378 int param); 379static void ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest); 380static int ctl_init(void); 381void ctl_shutdown(void); 382static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td); 383static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td); 384static void ctl_ioctl_online(void *arg); 385static void ctl_ioctl_offline(void *arg); 386static int ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id); 387static int ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id); 388static int ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio); 389static int ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio); 390static int ctl_ioctl_submit_wait(union ctl_io *io); 391static void ctl_ioctl_datamove(union ctl_io *io); 392static void ctl_ioctl_done(union ctl_io *io); 393static void ctl_ioctl_hard_startstop_callback(void *arg, 394 struct cfi_metatask *metatask); 395static void ctl_ioctl_bbrread_callback(void *arg,struct cfi_metatask *metatask); 396static int ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 397 struct ctl_ooa *ooa_hdr, 398 struct ctl_ooa_entry *kern_entries); 399static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 400 struct thread *td); 401static uint32_t ctl_map_lun(int port_num, uint32_t lun); 402static uint32_t ctl_map_lun_back(int port_num, uint32_t lun); 403static int ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 404 struct ctl_be_lun *be_lun, struct ctl_id target_id); 405static int ctl_free_lun(struct ctl_lun *lun); 406static void ctl_create_lun(struct ctl_be_lun *be_lun); 407/** 408static void ctl_failover_change_pages(struct ctl_softc *softc, 409 struct ctl_scsiio *ctsio, int master); 410**/ 411 412static int ctl_do_mode_select(union ctl_io *io); 413static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, 414 uint64_t res_key, uint64_t sa_res_key, 415 uint8_t type, uint32_t residx, 416 struct ctl_scsiio *ctsio, 417 struct scsi_per_res_out *cdb, 418 struct scsi_per_res_out_parms* param); 419static void ctl_pro_preempt_other(struct ctl_lun *lun, 420 union ctl_ha_msg *msg); 421static void ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg); 422static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 423static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 424static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 425static int ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len); 426static int ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len); 427static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, 428 int alloc_len); 429static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 430 int alloc_len); 431static int ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len); 432static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 433static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 434static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 435static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len); 436static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2); 437static ctl_action ctl_check_for_blockage(struct ctl_lun *lun, 438 union ctl_io *pending_io, union ctl_io *ooa_io); 439static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 440 union ctl_io *starting_io); 441static int ctl_check_blocked(struct ctl_lun *lun); 442static int ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, 443 struct ctl_lun *lun, 444 const struct ctl_cmd_entry *entry, 445 struct ctl_scsiio *ctsio); 446//static int ctl_check_rtr(union ctl_io *pending_io, struct ctl_softc *softc); 447static void ctl_failover(void); 448static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 449 struct ctl_scsiio *ctsio); 450static int ctl_scsiio(struct ctl_scsiio *ctsio); 451 452static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 453static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 454 ctl_ua_type ua_type); 455static int ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, 456 ctl_ua_type ua_type); 457static int ctl_abort_task(union ctl_io *io); 458static int ctl_abort_task_set(union ctl_io *io); 459static int ctl_i_t_nexus_reset(union ctl_io *io); 460static void ctl_run_task(union ctl_io *io); 461#ifdef CTL_IO_DELAY 462static void ctl_datamove_timer_wakeup(void *arg); 463static void ctl_done_timer_wakeup(void *arg); 464#endif /* CTL_IO_DELAY */ 465 466static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 467static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 468static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 469static void ctl_datamove_remote_write(union ctl_io *io); 470static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 471static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 472static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 473static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 474 ctl_ha_dt_cb callback); 475static void ctl_datamove_remote_read(union ctl_io *io); 476static void ctl_datamove_remote(union ctl_io *io); 477static int ctl_process_done(union ctl_io *io); 478static void ctl_lun_thread(void *arg); 479static void ctl_thresh_thread(void *arg); 480static void ctl_work_thread(void *arg); 481static void ctl_enqueue_incoming(union ctl_io *io); 482static void ctl_enqueue_rtr(union ctl_io *io); 483static void ctl_enqueue_done(union ctl_io *io); 484static void ctl_enqueue_isc(union ctl_io *io); 485static const struct ctl_cmd_entry * 486 ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa); 487static const struct ctl_cmd_entry * 488 ctl_validate_command(struct ctl_scsiio *ctsio); 489static int ctl_cmd_applicable(uint8_t lun_type, 490 const struct ctl_cmd_entry *entry); 491 492/* 493 * Load the serialization table. This isn't very pretty, but is probably 494 * the easiest way to do it. 495 */ 496#include "ctl_ser_table.c" 497 498/* 499 * We only need to define open, close and ioctl routines for this driver. 500 */ 501static struct cdevsw ctl_cdevsw = { 502 .d_version = D_VERSION, 503 .d_flags = 0, 504 .d_open = ctl_open, 505 .d_close = ctl_close, 506 .d_ioctl = ctl_ioctl, 507 .d_name = "ctl", 508}; 509 510 511MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 512MALLOC_DEFINE(M_CTLIO, "ctlio", "Memory used for CTL requests"); 513 514static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 515 516static moduledata_t ctl_moduledata = { 517 "ctl", 518 ctl_module_event_handler, 519 NULL 520}; 521 522DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 523MODULE_VERSION(ctl, 1); 524 525static struct ctl_frontend ioctl_frontend = 526{ 527 .name = "ioctl", 528}; 529 530static void 531ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 532 union ctl_ha_msg *msg_info) 533{ 534 struct ctl_scsiio *ctsio; 535 536 if (msg_info->hdr.original_sc == NULL) { 537 printf("%s: original_sc == NULL!\n", __func__); 538 /* XXX KDM now what? */ 539 return; 540 } 541 542 ctsio = &msg_info->hdr.original_sc->scsiio; 543 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 544 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 545 ctsio->io_hdr.status = msg_info->hdr.status; 546 ctsio->scsi_status = msg_info->scsi.scsi_status; 547 ctsio->sense_len = msg_info->scsi.sense_len; 548 ctsio->sense_residual = msg_info->scsi.sense_residual; 549 ctsio->residual = msg_info->scsi.residual; 550 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 551 sizeof(ctsio->sense_data)); 552 memcpy(&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 553 &msg_info->scsi.lbalen, sizeof(msg_info->scsi.lbalen)); 554 ctl_enqueue_isc((union ctl_io *)ctsio); 555} 556 557static void 558ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 559 union ctl_ha_msg *msg_info) 560{ 561 struct ctl_scsiio *ctsio; 562 563 if (msg_info->hdr.serializing_sc == NULL) { 564 printf("%s: serializing_sc == NULL!\n", __func__); 565 /* XXX KDM now what? */ 566 return; 567 } 568 569 ctsio = &msg_info->hdr.serializing_sc->scsiio; 570#if 0 571 /* 572 * Attempt to catch the situation where an I/O has 573 * been freed, and we're using it again. 574 */ 575 if (ctsio->io_hdr.io_type == 0xff) { 576 union ctl_io *tmp_io; 577 tmp_io = (union ctl_io *)ctsio; 578 printf("%s: %p use after free!\n", __func__, 579 ctsio); 580 printf("%s: type %d msg %d cdb %x iptl: " 581 "%d:%d:%d:%d tag 0x%04x " 582 "flag %#x status %x\n", 583 __func__, 584 tmp_io->io_hdr.io_type, 585 tmp_io->io_hdr.msg_type, 586 tmp_io->scsiio.cdb[0], 587 tmp_io->io_hdr.nexus.initid.id, 588 tmp_io->io_hdr.nexus.targ_port, 589 tmp_io->io_hdr.nexus.targ_target.id, 590 tmp_io->io_hdr.nexus.targ_lun, 591 (tmp_io->io_hdr.io_type == 592 CTL_IO_TASK) ? 593 tmp_io->taskio.tag_num : 594 tmp_io->scsiio.tag_num, 595 tmp_io->io_hdr.flags, 596 tmp_io->io_hdr.status); 597 } 598#endif 599 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 600 ctl_enqueue_isc((union ctl_io *)ctsio); 601} 602 603/* 604 * ISC (Inter Shelf Communication) event handler. Events from the HA 605 * subsystem come in here. 606 */ 607static void 608ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 609{ 610 struct ctl_softc *ctl_softc; 611 union ctl_io *io; 612 struct ctl_prio *presio; 613 ctl_ha_status isc_status; 614 615 ctl_softc = control_softc; 616 io = NULL; 617 618 619#if 0 620 printf("CTL: Isc Msg event %d\n", event); 621#endif 622 if (event == CTL_HA_EVT_MSG_RECV) { 623 union ctl_ha_msg msg_info; 624 625 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 626 sizeof(msg_info), /*wait*/ 0); 627#if 0 628 printf("CTL: msg_type %d\n", msg_info.msg_type); 629#endif 630 if (isc_status != 0) { 631 printf("Error receiving message, status = %d\n", 632 isc_status); 633 return; 634 } 635 636 switch (msg_info.hdr.msg_type) { 637 case CTL_MSG_SERIALIZE: 638#if 0 639 printf("Serialize\n"); 640#endif 641 io = ctl_alloc_io_nowait(ctl_softc->othersc_pool); 642 if (io == NULL) { 643 printf("ctl_isc_event_handler: can't allocate " 644 "ctl_io!\n"); 645 /* Bad Juju */ 646 /* Need to set busy and send msg back */ 647 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 648 msg_info.hdr.status = CTL_SCSI_ERROR; 649 msg_info.scsi.scsi_status = SCSI_STATUS_BUSY; 650 msg_info.scsi.sense_len = 0; 651 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 652 sizeof(msg_info), 0) > CTL_HA_STATUS_SUCCESS){ 653 } 654 goto bailout; 655 } 656 ctl_zero_io(io); 657 // populate ctsio from msg_info 658 io->io_hdr.io_type = CTL_IO_SCSI; 659 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 660 io->io_hdr.original_sc = msg_info.hdr.original_sc; 661#if 0 662 printf("pOrig %x\n", (int)msg_info.original_sc); 663#endif 664 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 665 CTL_FLAG_IO_ACTIVE; 666 /* 667 * If we're in serialization-only mode, we don't 668 * want to go through full done processing. Thus 669 * the COPY flag. 670 * 671 * XXX KDM add another flag that is more specific. 672 */ 673 if (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY) 674 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 675 io->io_hdr.nexus = msg_info.hdr.nexus; 676#if 0 677 printf("targ %d, port %d, iid %d, lun %d\n", 678 io->io_hdr.nexus.targ_target.id, 679 io->io_hdr.nexus.targ_port, 680 io->io_hdr.nexus.initid.id, 681 io->io_hdr.nexus.targ_lun); 682#endif 683 io->scsiio.tag_num = msg_info.scsi.tag_num; 684 io->scsiio.tag_type = msg_info.scsi.tag_type; 685 memcpy(io->scsiio.cdb, msg_info.scsi.cdb, 686 CTL_MAX_CDBLEN); 687 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 688 const struct ctl_cmd_entry *entry; 689 690 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 691 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 692 io->io_hdr.flags |= 693 entry->flags & CTL_FLAG_DATA_MASK; 694 } 695 ctl_enqueue_isc(io); 696 break; 697 698 /* Performed on the Originating SC, XFER mode only */ 699 case CTL_MSG_DATAMOVE: { 700 struct ctl_sg_entry *sgl; 701 int i, j; 702 703 io = msg_info.hdr.original_sc; 704 if (io == NULL) { 705 printf("%s: original_sc == NULL!\n", __func__); 706 /* XXX KDM do something here */ 707 break; 708 } 709 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 710 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 711 /* 712 * Keep track of this, we need to send it back over 713 * when the datamove is complete. 714 */ 715 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 716 717 if (msg_info.dt.sg_sequence == 0) { 718 /* 719 * XXX KDM we use the preallocated S/G list 720 * here, but we'll need to change this to 721 * dynamic allocation if we need larger S/G 722 * lists. 723 */ 724 if (msg_info.dt.kern_sg_entries > 725 sizeof(io->io_hdr.remote_sglist) / 726 sizeof(io->io_hdr.remote_sglist[0])) { 727 printf("%s: number of S/G entries " 728 "needed %u > allocated num %zd\n", 729 __func__, 730 msg_info.dt.kern_sg_entries, 731 sizeof(io->io_hdr.remote_sglist)/ 732 sizeof(io->io_hdr.remote_sglist[0])); 733 734 /* 735 * XXX KDM send a message back to 736 * the other side to shut down the 737 * DMA. The error will come back 738 * through via the normal channel. 739 */ 740 break; 741 } 742 sgl = io->io_hdr.remote_sglist; 743 memset(sgl, 0, 744 sizeof(io->io_hdr.remote_sglist)); 745 746 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 747 748 io->scsiio.kern_sg_entries = 749 msg_info.dt.kern_sg_entries; 750 io->scsiio.rem_sg_entries = 751 msg_info.dt.kern_sg_entries; 752 io->scsiio.kern_data_len = 753 msg_info.dt.kern_data_len; 754 io->scsiio.kern_total_len = 755 msg_info.dt.kern_total_len; 756 io->scsiio.kern_data_resid = 757 msg_info.dt.kern_data_resid; 758 io->scsiio.kern_rel_offset = 759 msg_info.dt.kern_rel_offset; 760 /* 761 * Clear out per-DMA flags. 762 */ 763 io->io_hdr.flags &= ~CTL_FLAG_RDMA_MASK; 764 /* 765 * Add per-DMA flags that are set for this 766 * particular DMA request. 767 */ 768 io->io_hdr.flags |= msg_info.dt.flags & 769 CTL_FLAG_RDMA_MASK; 770 } else 771 sgl = (struct ctl_sg_entry *) 772 io->scsiio.kern_data_ptr; 773 774 for (i = msg_info.dt.sent_sg_entries, j = 0; 775 i < (msg_info.dt.sent_sg_entries + 776 msg_info.dt.cur_sg_entries); i++, j++) { 777 sgl[i].addr = msg_info.dt.sg_list[j].addr; 778 sgl[i].len = msg_info.dt.sg_list[j].len; 779 780#if 0 781 printf("%s: L: %p,%d -> %p,%d j=%d, i=%d\n", 782 __func__, 783 msg_info.dt.sg_list[j].addr, 784 msg_info.dt.sg_list[j].len, 785 sgl[i].addr, sgl[i].len, j, i); 786#endif 787 } 788#if 0 789 memcpy(&sgl[msg_info.dt.sent_sg_entries], 790 msg_info.dt.sg_list, 791 sizeof(*sgl) * msg_info.dt.cur_sg_entries); 792#endif 793 794 /* 795 * If this is the last piece of the I/O, we've got 796 * the full S/G list. Queue processing in the thread. 797 * Otherwise wait for the next piece. 798 */ 799 if (msg_info.dt.sg_last != 0) 800 ctl_enqueue_isc(io); 801 break; 802 } 803 /* Performed on the Serializing (primary) SC, XFER mode only */ 804 case CTL_MSG_DATAMOVE_DONE: { 805 if (msg_info.hdr.serializing_sc == NULL) { 806 printf("%s: serializing_sc == NULL!\n", 807 __func__); 808 /* XXX KDM now what? */ 809 break; 810 } 811 /* 812 * We grab the sense information here in case 813 * there was a failure, so we can return status 814 * back to the initiator. 815 */ 816 io = msg_info.hdr.serializing_sc; 817 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 818 io->io_hdr.status = msg_info.hdr.status; 819 io->scsiio.scsi_status = msg_info.scsi.scsi_status; 820 io->scsiio.sense_len = msg_info.scsi.sense_len; 821 io->scsiio.sense_residual =msg_info.scsi.sense_residual; 822 io->io_hdr.port_status = msg_info.scsi.fetd_status; 823 io->scsiio.residual = msg_info.scsi.residual; 824 memcpy(&io->scsiio.sense_data,&msg_info.scsi.sense_data, 825 sizeof(io->scsiio.sense_data)); 826 ctl_enqueue_isc(io); 827 break; 828 } 829 830 /* Preformed on Originating SC, SER_ONLY mode */ 831 case CTL_MSG_R2R: 832 io = msg_info.hdr.original_sc; 833 if (io == NULL) { 834 printf("%s: Major Bummer\n", __func__); 835 return; 836 } else { 837#if 0 838 printf("pOrig %x\n",(int) ctsio); 839#endif 840 } 841 io->io_hdr.msg_type = CTL_MSG_R2R; 842 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 843 ctl_enqueue_isc(io); 844 break; 845 846 /* 847 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 848 * mode. 849 * Performed on the Originating (i.e. secondary) SC in XFER 850 * mode 851 */ 852 case CTL_MSG_FINISH_IO: 853 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) 854 ctl_isc_handler_finish_xfer(ctl_softc, 855 &msg_info); 856 else 857 ctl_isc_handler_finish_ser_only(ctl_softc, 858 &msg_info); 859 break; 860 861 /* Preformed on Originating SC */ 862 case CTL_MSG_BAD_JUJU: 863 io = msg_info.hdr.original_sc; 864 if (io == NULL) { 865 printf("%s: Bad JUJU!, original_sc is NULL!\n", 866 __func__); 867 break; 868 } 869 ctl_copy_sense_data(&msg_info, io); 870 /* 871 * IO should have already been cleaned up on other 872 * SC so clear this flag so we won't send a message 873 * back to finish the IO there. 874 */ 875 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 876 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 877 878 /* io = msg_info.hdr.serializing_sc; */ 879 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 880 ctl_enqueue_isc(io); 881 break; 882 883 /* Handle resets sent from the other side */ 884 case CTL_MSG_MANAGE_TASKS: { 885 struct ctl_taskio *taskio; 886 taskio = (struct ctl_taskio *)ctl_alloc_io_nowait( 887 ctl_softc->othersc_pool); 888 if (taskio == NULL) { 889 printf("ctl_isc_event_handler: can't allocate " 890 "ctl_io!\n"); 891 /* Bad Juju */ 892 /* should I just call the proper reset func 893 here??? */ 894 goto bailout; 895 } 896 ctl_zero_io((union ctl_io *)taskio); 897 taskio->io_hdr.io_type = CTL_IO_TASK; 898 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 899 taskio->io_hdr.nexus = msg_info.hdr.nexus; 900 taskio->task_action = msg_info.task.task_action; 901 taskio->tag_num = msg_info.task.tag_num; 902 taskio->tag_type = msg_info.task.tag_type; 903#ifdef CTL_TIME_IO 904 taskio->io_hdr.start_time = time_uptime; 905 getbintime(&taskio->io_hdr.start_bt); 906#if 0 907 cs_prof_gettime(&taskio->io_hdr.start_ticks); 908#endif 909#endif /* CTL_TIME_IO */ 910 ctl_run_task((union ctl_io *)taskio); 911 break; 912 } 913 /* Persistent Reserve action which needs attention */ 914 case CTL_MSG_PERS_ACTION: 915 presio = (struct ctl_prio *)ctl_alloc_io_nowait( 916 ctl_softc->othersc_pool); 917 if (presio == NULL) { 918 printf("ctl_isc_event_handler: can't allocate " 919 "ctl_io!\n"); 920 /* Bad Juju */ 921 /* Need to set busy and send msg back */ 922 goto bailout; 923 } 924 ctl_zero_io((union ctl_io *)presio); 925 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 926 presio->pr_msg = msg_info.pr; 927 ctl_enqueue_isc((union ctl_io *)presio); 928 break; 929 case CTL_MSG_SYNC_FE: 930 rcv_sync_msg = 1; 931 break; 932 default: 933 printf("How did I get here?\n"); 934 } 935 } else if (event == CTL_HA_EVT_MSG_SENT) { 936 if (param != CTL_HA_STATUS_SUCCESS) { 937 printf("Bad status from ctl_ha_msg_send status %d\n", 938 param); 939 } 940 return; 941 } else if (event == CTL_HA_EVT_DISCONNECT) { 942 printf("CTL: Got a disconnect from Isc\n"); 943 return; 944 } else { 945 printf("ctl_isc_event_handler: Unknown event %d\n", event); 946 return; 947 } 948 949bailout: 950 return; 951} 952 953static void 954ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 955{ 956 struct scsi_sense_data *sense; 957 958 sense = &dest->scsiio.sense_data; 959 bcopy(&src->scsi.sense_data, sense, sizeof(*sense)); 960 dest->scsiio.scsi_status = src->scsi.scsi_status; 961 dest->scsiio.sense_len = src->scsi.sense_len; 962 dest->io_hdr.status = src->hdr.status; 963} 964 965static int 966ctl_ha_state_sysctl(SYSCTL_HANDLER_ARGS) 967{ 968 struct ctl_softc *softc = (struct ctl_softc *)arg1; 969 struct ctl_lun *lun; 970 int error, value, i; 971 972 if (softc->flags & CTL_FLAG_ACTIVE_SHELF) 973 value = 0; 974 else 975 value = 1; 976 977 error = sysctl_handle_int(oidp, &value, 0, req); 978 if ((error != 0) || (req->newptr == NULL)) 979 return (error); 980 981 mtx_lock(&softc->ctl_lock); 982 if (value == 0) 983 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 984 else 985 softc->flags &= ~CTL_FLAG_ACTIVE_SHELF; 986 STAILQ_FOREACH(lun, &softc->lun_list, links) { 987 mtx_lock(&lun->lun_lock); 988 for (i = 0; i < CTL_MAX_INITIATORS; i++) 989 lun->pending_ua[i] |= CTL_UA_ASYM_ACC_CHANGE; 990 mtx_unlock(&lun->lun_lock); 991 } 992 mtx_unlock(&softc->ctl_lock); 993 return (0); 994} 995 996static int 997ctl_init(void) 998{ 999 struct ctl_softc *softc; 1000 void *other_pool; 1001 struct ctl_port *port; 1002 int i, error, retval; 1003 //int isc_retval; 1004 1005 retval = 0; 1006 ctl_pause_rtr = 0; 1007 rcv_sync_msg = 0; 1008 1009 control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 1010 M_WAITOK | M_ZERO); 1011 softc = control_softc; 1012 1013 softc->dev = make_dev(&ctl_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, 1014 "cam/ctl"); 1015 1016 softc->dev->si_drv1 = softc; 1017 1018 /* 1019 * By default, return a "bad LUN" peripheral qualifier for unknown 1020 * LUNs. The user can override this default using the tunable or 1021 * sysctl. See the comment in ctl_inquiry_std() for more details. 1022 */ 1023 softc->inquiry_pq_no_lun = 1; 1024 TUNABLE_INT_FETCH("kern.cam.ctl.inquiry_pq_no_lun", 1025 &softc->inquiry_pq_no_lun); 1026 sysctl_ctx_init(&softc->sysctl_ctx); 1027 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1028 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 1029 CTLFLAG_RD, 0, "CAM Target Layer"); 1030 1031 if (softc->sysctl_tree == NULL) { 1032 printf("%s: unable to allocate sysctl tree\n", __func__); 1033 destroy_dev(softc->dev); 1034 free(control_softc, M_DEVBUF); 1035 control_softc = NULL; 1036 return (ENOMEM); 1037 } 1038 1039 SYSCTL_ADD_INT(&softc->sysctl_ctx, 1040 SYSCTL_CHILDREN(softc->sysctl_tree), OID_AUTO, 1041 "inquiry_pq_no_lun", CTLFLAG_RW, 1042 &softc->inquiry_pq_no_lun, 0, 1043 "Report no lun possible for invalid LUNs"); 1044 1045 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 1046 softc->io_zone = uma_zcreate("CTL IO", sizeof(union ctl_io), 1047 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); 1048 softc->open_count = 0; 1049 1050 /* 1051 * Default to actually sending a SYNCHRONIZE CACHE command down to 1052 * the drive. 1053 */ 1054 softc->flags = CTL_FLAG_REAL_SYNC; 1055 1056 /* 1057 * In Copan's HA scheme, the "master" and "slave" roles are 1058 * figured out through the slot the controller is in. Although it 1059 * is an active/active system, someone has to be in charge. 1060 */ 1061 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1062 OID_AUTO, "ha_id", CTLFLAG_RDTUN, &softc->ha_id, 0, 1063 "HA head ID (0 - no HA)"); 1064 if (softc->ha_id == 0) { 1065 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1066 softc->is_single = 1; 1067 softc->port_offset = 0; 1068 } else 1069 softc->port_offset = (softc->ha_id - 1) * CTL_MAX_PORTS; 1070 softc->persis_offset = softc->port_offset * CTL_MAX_INIT_PER_PORT; 1071 1072 /* 1073 * XXX KDM need to figure out where we want to get our target ID 1074 * and WWID. Is it different on each port? 1075 */ 1076 softc->target.id = 0; 1077 softc->target.wwid[0] = 0x12345678; 1078 softc->target.wwid[1] = 0x87654321; 1079 STAILQ_INIT(&softc->lun_list); 1080 STAILQ_INIT(&softc->pending_lun_queue); 1081 STAILQ_INIT(&softc->fe_list); 1082 STAILQ_INIT(&softc->port_list); 1083 STAILQ_INIT(&softc->be_list); 1084 ctl_tpc_init(softc); 1085 1086 if (ctl_pool_create(softc, "othersc", CTL_POOL_ENTRIES_OTHER_SC, 1087 &other_pool) != 0) 1088 { 1089 printf("ctl: can't allocate %d entry other SC pool, " 1090 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1091 return (ENOMEM); 1092 } 1093 softc->othersc_pool = other_pool; 1094 1095 if (worker_threads <= 0) 1096 worker_threads = max(1, mp_ncpus / 4); 1097 if (worker_threads > CTL_MAX_THREADS) 1098 worker_threads = CTL_MAX_THREADS; 1099 1100 for (i = 0; i < worker_threads; i++) { 1101 struct ctl_thread *thr = &softc->threads[i]; 1102 1103 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1104 thr->ctl_softc = softc; 1105 STAILQ_INIT(&thr->incoming_queue); 1106 STAILQ_INIT(&thr->rtr_queue); 1107 STAILQ_INIT(&thr->done_queue); 1108 STAILQ_INIT(&thr->isc_queue); 1109 1110 error = kproc_kthread_add(ctl_work_thread, thr, 1111 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1112 if (error != 0) { 1113 printf("error creating CTL work thread!\n"); 1114 ctl_pool_free(other_pool); 1115 return (error); 1116 } 1117 } 1118 error = kproc_kthread_add(ctl_lun_thread, softc, 1119 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1120 if (error != 0) { 1121 printf("error creating CTL lun thread!\n"); 1122 ctl_pool_free(other_pool); 1123 return (error); 1124 } 1125 error = kproc_kthread_add(ctl_thresh_thread, softc, 1126 &softc->ctl_proc, NULL, 0, 0, "ctl", "thresh"); 1127 if (error != 0) { 1128 printf("error creating CTL threshold thread!\n"); 1129 ctl_pool_free(other_pool); 1130 return (error); 1131 } 1132 if (bootverbose) 1133 printf("ctl: CAM Target Layer loaded\n"); 1134 1135 /* 1136 * Initialize the ioctl front end. 1137 */ 1138 ctl_frontend_register(&ioctl_frontend); 1139 port = &softc->ioctl_info.port; 1140 port->frontend = &ioctl_frontend; 1141 sprintf(softc->ioctl_info.port_name, "ioctl"); 1142 port->port_type = CTL_PORT_IOCTL; 1143 port->num_requested_ctl_io = 100; 1144 port->port_name = softc->ioctl_info.port_name; 1145 port->port_online = ctl_ioctl_online; 1146 port->port_offline = ctl_ioctl_offline; 1147 port->onoff_arg = &softc->ioctl_info; 1148 port->lun_enable = ctl_ioctl_lun_enable; 1149 port->lun_disable = ctl_ioctl_lun_disable; 1150 port->targ_lun_arg = &softc->ioctl_info; 1151 port->fe_datamove = ctl_ioctl_datamove; 1152 port->fe_done = ctl_ioctl_done; 1153 port->max_targets = 15; 1154 port->max_target_id = 15; 1155 1156 if (ctl_port_register(&softc->ioctl_info.port) != 0) { 1157 printf("ctl: ioctl front end registration failed, will " 1158 "continue anyway\n"); 1159 } 1160 1161 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1162 OID_AUTO, "ha_state", CTLTYPE_INT | CTLFLAG_RWTUN, 1163 softc, 0, ctl_ha_state_sysctl, "I", "HA state for this head"); 1164 1165#ifdef CTL_IO_DELAY 1166 if (sizeof(struct callout) > CTL_TIMER_BYTES) { 1167 printf("sizeof(struct callout) %zd > CTL_TIMER_BYTES %zd\n", 1168 sizeof(struct callout), CTL_TIMER_BYTES); 1169 return (EINVAL); 1170 } 1171#endif /* CTL_IO_DELAY */ 1172 1173 return (0); 1174} 1175 1176void 1177ctl_shutdown(void) 1178{ 1179 struct ctl_softc *softc; 1180 struct ctl_lun *lun, *next_lun; 1181 1182 softc = (struct ctl_softc *)control_softc; 1183 1184 if (ctl_port_deregister(&softc->ioctl_info.port) != 0) 1185 printf("ctl: ioctl front end deregistration failed\n"); 1186 1187 mtx_lock(&softc->ctl_lock); 1188 1189 /* 1190 * Free up each LUN. 1191 */ 1192 for (lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; lun = next_lun){ 1193 next_lun = STAILQ_NEXT(lun, links); 1194 ctl_free_lun(lun); 1195 } 1196 1197 mtx_unlock(&softc->ctl_lock); 1198 1199 ctl_frontend_deregister(&ioctl_frontend); 1200 1201#if 0 1202 ctl_shutdown_thread(softc->work_thread); 1203 mtx_destroy(&softc->queue_lock); 1204#endif 1205 1206 ctl_tpc_shutdown(softc); 1207 uma_zdestroy(softc->io_zone); 1208 mtx_destroy(&softc->ctl_lock); 1209 1210 destroy_dev(softc->dev); 1211 1212 sysctl_ctx_free(&softc->sysctl_ctx); 1213 1214 free(control_softc, M_DEVBUF); 1215 control_softc = NULL; 1216 1217 if (bootverbose) 1218 printf("ctl: CAM Target Layer unloaded\n"); 1219} 1220 1221static int 1222ctl_module_event_handler(module_t mod, int what, void *arg) 1223{ 1224 1225 switch (what) { 1226 case MOD_LOAD: 1227 return (ctl_init()); 1228 case MOD_UNLOAD: 1229 return (EBUSY); 1230 default: 1231 return (EOPNOTSUPP); 1232 } 1233} 1234 1235/* 1236 * XXX KDM should we do some access checks here? Bump a reference count to 1237 * prevent a CTL module from being unloaded while someone has it open? 1238 */ 1239static int 1240ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1241{ 1242 return (0); 1243} 1244 1245static int 1246ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1247{ 1248 return (0); 1249} 1250 1251int 1252ctl_port_enable(ctl_port_type port_type) 1253{ 1254 struct ctl_softc *softc = control_softc; 1255 struct ctl_port *port; 1256 1257 if (softc->is_single == 0) { 1258 union ctl_ha_msg msg_info; 1259 int isc_retval; 1260 1261#if 0 1262 printf("%s: HA mode, synchronizing frontend enable\n", 1263 __func__); 1264#endif 1265 msg_info.hdr.msg_type = CTL_MSG_SYNC_FE; 1266 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1267 sizeof(msg_info), 1 )) > CTL_HA_STATUS_SUCCESS) { 1268 printf("Sync msg send error retval %d\n", isc_retval); 1269 } 1270 if (!rcv_sync_msg) { 1271 isc_retval=ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 1272 sizeof(msg_info), 1); 1273 } 1274#if 0 1275 printf("CTL:Frontend Enable\n"); 1276 } else { 1277 printf("%s: single mode, skipping frontend synchronization\n", 1278 __func__); 1279#endif 1280 } 1281 1282 STAILQ_FOREACH(port, &softc->port_list, links) { 1283 if (port_type & port->port_type) 1284 { 1285#if 0 1286 printf("port %d\n", port->targ_port); 1287#endif 1288 ctl_port_online(port); 1289 } 1290 } 1291 1292 return (0); 1293} 1294 1295int 1296ctl_port_disable(ctl_port_type port_type) 1297{ 1298 struct ctl_softc *softc; 1299 struct ctl_port *port; 1300 1301 softc = control_softc; 1302 1303 STAILQ_FOREACH(port, &softc->port_list, links) { 1304 if (port_type & port->port_type) 1305 ctl_port_offline(port); 1306 } 1307 1308 return (0); 1309} 1310 1311/* 1312 * Returns 0 for success, 1 for failure. 1313 * Currently the only failure mode is if there aren't enough entries 1314 * allocated. So, in case of a failure, look at num_entries_dropped, 1315 * reallocate and try again. 1316 */ 1317int 1318ctl_port_list(struct ctl_port_entry *entries, int num_entries_alloced, 1319 int *num_entries_filled, int *num_entries_dropped, 1320 ctl_port_type port_type, int no_virtual) 1321{ 1322 struct ctl_softc *softc; 1323 struct ctl_port *port; 1324 int entries_dropped, entries_filled; 1325 int retval; 1326 int i; 1327 1328 softc = control_softc; 1329 1330 retval = 0; 1331 entries_filled = 0; 1332 entries_dropped = 0; 1333 1334 i = 0; 1335 mtx_lock(&softc->ctl_lock); 1336 STAILQ_FOREACH(port, &softc->port_list, links) { 1337 struct ctl_port_entry *entry; 1338 1339 if ((port->port_type & port_type) == 0) 1340 continue; 1341 1342 if ((no_virtual != 0) 1343 && (port->virtual_port != 0)) 1344 continue; 1345 1346 if (entries_filled >= num_entries_alloced) { 1347 entries_dropped++; 1348 continue; 1349 } 1350 entry = &entries[i]; 1351 1352 entry->port_type = port->port_type; 1353 strlcpy(entry->port_name, port->port_name, 1354 sizeof(entry->port_name)); 1355 entry->physical_port = port->physical_port; 1356 entry->virtual_port = port->virtual_port; 1357 entry->wwnn = port->wwnn; 1358 entry->wwpn = port->wwpn; 1359 1360 i++; 1361 entries_filled++; 1362 } 1363 1364 mtx_unlock(&softc->ctl_lock); 1365 1366 if (entries_dropped > 0) 1367 retval = 1; 1368 1369 *num_entries_dropped = entries_dropped; 1370 *num_entries_filled = entries_filled; 1371 1372 return (retval); 1373} 1374 1375static void 1376ctl_ioctl_online(void *arg) 1377{ 1378 struct ctl_ioctl_info *ioctl_info; 1379 1380 ioctl_info = (struct ctl_ioctl_info *)arg; 1381 1382 ioctl_info->flags |= CTL_IOCTL_FLAG_ENABLED; 1383} 1384 1385static void 1386ctl_ioctl_offline(void *arg) 1387{ 1388 struct ctl_ioctl_info *ioctl_info; 1389 1390 ioctl_info = (struct ctl_ioctl_info *)arg; 1391 1392 ioctl_info->flags &= ~CTL_IOCTL_FLAG_ENABLED; 1393} 1394 1395/* 1396 * Remove an initiator by port number and initiator ID. 1397 * Returns 0 for success, -1 for failure. 1398 */ 1399int 1400ctl_remove_initiator(struct ctl_port *port, int iid) 1401{ 1402 struct ctl_softc *softc = control_softc; 1403 1404 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1405 1406 if (iid > CTL_MAX_INIT_PER_PORT) { 1407 printf("%s: initiator ID %u > maximun %u!\n", 1408 __func__, iid, CTL_MAX_INIT_PER_PORT); 1409 return (-1); 1410 } 1411 1412 mtx_lock(&softc->ctl_lock); 1413 port->wwpn_iid[iid].in_use--; 1414 port->wwpn_iid[iid].last_use = time_uptime; 1415 mtx_unlock(&softc->ctl_lock); 1416 1417 return (0); 1418} 1419 1420/* 1421 * Add an initiator to the initiator map. 1422 * Returns iid for success, < 0 for failure. 1423 */ 1424int 1425ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 1426{ 1427 struct ctl_softc *softc = control_softc; 1428 time_t best_time; 1429 int i, best; 1430 1431 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1432 1433 if (iid >= CTL_MAX_INIT_PER_PORT) { 1434 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 1435 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 1436 free(name, M_CTL); 1437 return (-1); 1438 } 1439 1440 mtx_lock(&softc->ctl_lock); 1441 1442 if (iid < 0 && (wwpn != 0 || name != NULL)) { 1443 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1444 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 1445 iid = i; 1446 break; 1447 } 1448 if (name != NULL && port->wwpn_iid[i].name != NULL && 1449 strcmp(name, port->wwpn_iid[i].name) == 0) { 1450 iid = i; 1451 break; 1452 } 1453 } 1454 } 1455 1456 if (iid < 0) { 1457 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1458 if (port->wwpn_iid[i].in_use == 0 && 1459 port->wwpn_iid[i].wwpn == 0 && 1460 port->wwpn_iid[i].name == NULL) { 1461 iid = i; 1462 break; 1463 } 1464 } 1465 } 1466 1467 if (iid < 0) { 1468 best = -1; 1469 best_time = INT32_MAX; 1470 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1471 if (port->wwpn_iid[i].in_use == 0) { 1472 if (port->wwpn_iid[i].last_use < best_time) { 1473 best = i; 1474 best_time = port->wwpn_iid[i].last_use; 1475 } 1476 } 1477 } 1478 iid = best; 1479 } 1480 1481 if (iid < 0) { 1482 mtx_unlock(&softc->ctl_lock); 1483 free(name, M_CTL); 1484 return (-2); 1485 } 1486 1487 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 1488 /* 1489 * This is not an error yet. 1490 */ 1491 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 1492#if 0 1493 printf("%s: port %d iid %u WWPN %#jx arrived" 1494 " again\n", __func__, port->targ_port, 1495 iid, (uintmax_t)wwpn); 1496#endif 1497 goto take; 1498 } 1499 if (name != NULL && port->wwpn_iid[iid].name != NULL && 1500 strcmp(name, port->wwpn_iid[iid].name) == 0) { 1501#if 0 1502 printf("%s: port %d iid %u name '%s' arrived" 1503 " again\n", __func__, port->targ_port, 1504 iid, name); 1505#endif 1506 goto take; 1507 } 1508 1509 /* 1510 * This is an error, but what do we do about it? The 1511 * driver is telling us we have a new WWPN for this 1512 * initiator ID, so we pretty much need to use it. 1513 */ 1514 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 1515 " but WWPN %#jx '%s' is still at that address\n", 1516 __func__, port->targ_port, iid, wwpn, name, 1517 (uintmax_t)port->wwpn_iid[iid].wwpn, 1518 port->wwpn_iid[iid].name); 1519 1520 /* 1521 * XXX KDM clear have_ca and ua_pending on each LUN for 1522 * this initiator. 1523 */ 1524 } 1525take: 1526 free(port->wwpn_iid[iid].name, M_CTL); 1527 port->wwpn_iid[iid].name = name; 1528 port->wwpn_iid[iid].wwpn = wwpn; 1529 port->wwpn_iid[iid].in_use++; 1530 mtx_unlock(&softc->ctl_lock); 1531 1532 return (iid); 1533} 1534 1535static int 1536ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 1537{ 1538 int len; 1539 1540 switch (port->port_type) { 1541 case CTL_PORT_FC: 1542 { 1543 struct scsi_transportid_fcp *id = 1544 (struct scsi_transportid_fcp *)buf; 1545 if (port->wwpn_iid[iid].wwpn == 0) 1546 return (0); 1547 memset(id, 0, sizeof(*id)); 1548 id->format_protocol = SCSI_PROTO_FC; 1549 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 1550 return (sizeof(*id)); 1551 } 1552 case CTL_PORT_ISCSI: 1553 { 1554 struct scsi_transportid_iscsi_port *id = 1555 (struct scsi_transportid_iscsi_port *)buf; 1556 if (port->wwpn_iid[iid].name == NULL) 1557 return (0); 1558 memset(id, 0, 256); 1559 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 1560 SCSI_PROTO_ISCSI; 1561 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 1562 len = roundup2(min(len, 252), 4); 1563 scsi_ulto2b(len, id->additional_length); 1564 return (sizeof(*id) + len); 1565 } 1566 case CTL_PORT_SAS: 1567 { 1568 struct scsi_transportid_sas *id = 1569 (struct scsi_transportid_sas *)buf; 1570 if (port->wwpn_iid[iid].wwpn == 0) 1571 return (0); 1572 memset(id, 0, sizeof(*id)); 1573 id->format_protocol = SCSI_PROTO_SAS; 1574 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 1575 return (sizeof(*id)); 1576 } 1577 default: 1578 { 1579 struct scsi_transportid_spi *id = 1580 (struct scsi_transportid_spi *)buf; 1581 memset(id, 0, sizeof(*id)); 1582 id->format_protocol = SCSI_PROTO_SPI; 1583 scsi_ulto2b(iid, id->scsi_addr); 1584 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 1585 return (sizeof(*id)); 1586 } 1587 } 1588} 1589 1590static int 1591ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id) 1592{ 1593 return (0); 1594} 1595 1596static int 1597ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id) 1598{ 1599 return (0); 1600} 1601 1602/* 1603 * Data movement routine for the CTL ioctl frontend port. 1604 */ 1605static int 1606ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio) 1607{ 1608 struct ctl_sg_entry *ext_sglist, *kern_sglist; 1609 struct ctl_sg_entry ext_entry, kern_entry; 1610 int ext_sglen, ext_sg_entries, kern_sg_entries; 1611 int ext_sg_start, ext_offset; 1612 int len_to_copy, len_copied; 1613 int kern_watermark, ext_watermark; 1614 int ext_sglist_malloced; 1615 int i, j; 1616 1617 ext_sglist_malloced = 0; 1618 ext_sg_start = 0; 1619 ext_offset = 0; 1620 1621 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove\n")); 1622 1623 /* 1624 * If this flag is set, fake the data transfer. 1625 */ 1626 if (ctsio->io_hdr.flags & CTL_FLAG_NO_DATAMOVE) { 1627 ctsio->ext_data_filled = ctsio->ext_data_len; 1628 goto bailout; 1629 } 1630 1631 /* 1632 * To simplify things here, if we have a single buffer, stick it in 1633 * a S/G entry and just make it a single entry S/G list. 1634 */ 1635 if (ctsio->io_hdr.flags & CTL_FLAG_EDPTR_SGLIST) { 1636 int len_seen; 1637 1638 ext_sglen = ctsio->ext_sg_entries * sizeof(*ext_sglist); 1639 1640 ext_sglist = (struct ctl_sg_entry *)malloc(ext_sglen, M_CTL, 1641 M_WAITOK); 1642 ext_sglist_malloced = 1; 1643 if (copyin(ctsio->ext_data_ptr, ext_sglist, 1644 ext_sglen) != 0) { 1645 ctl_set_internal_failure(ctsio, 1646 /*sks_valid*/ 0, 1647 /*retry_count*/ 0); 1648 goto bailout; 1649 } 1650 ext_sg_entries = ctsio->ext_sg_entries; 1651 len_seen = 0; 1652 for (i = 0; i < ext_sg_entries; i++) { 1653 if ((len_seen + ext_sglist[i].len) >= 1654 ctsio->ext_data_filled) { 1655 ext_sg_start = i; 1656 ext_offset = ctsio->ext_data_filled - len_seen; 1657 break; 1658 } 1659 len_seen += ext_sglist[i].len; 1660 } 1661 } else { 1662 ext_sglist = &ext_entry; 1663 ext_sglist->addr = ctsio->ext_data_ptr; 1664 ext_sglist->len = ctsio->ext_data_len; 1665 ext_sg_entries = 1; 1666 ext_sg_start = 0; 1667 ext_offset = ctsio->ext_data_filled; 1668 } 1669 1670 if (ctsio->kern_sg_entries > 0) { 1671 kern_sglist = (struct ctl_sg_entry *)ctsio->kern_data_ptr; 1672 kern_sg_entries = ctsio->kern_sg_entries; 1673 } else { 1674 kern_sglist = &kern_entry; 1675 kern_sglist->addr = ctsio->kern_data_ptr; 1676 kern_sglist->len = ctsio->kern_data_len; 1677 kern_sg_entries = 1; 1678 } 1679 1680 1681 kern_watermark = 0; 1682 ext_watermark = ext_offset; 1683 len_copied = 0; 1684 for (i = ext_sg_start, j = 0; 1685 i < ext_sg_entries && j < kern_sg_entries;) { 1686 uint8_t *ext_ptr, *kern_ptr; 1687 1688 len_to_copy = ctl_min(ext_sglist[i].len - ext_watermark, 1689 kern_sglist[j].len - kern_watermark); 1690 1691 ext_ptr = (uint8_t *)ext_sglist[i].addr; 1692 ext_ptr = ext_ptr + ext_watermark; 1693 if (ctsio->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 1694 /* 1695 * XXX KDM fix this! 1696 */ 1697 panic("need to implement bus address support"); 1698#if 0 1699 kern_ptr = bus_to_virt(kern_sglist[j].addr); 1700#endif 1701 } else 1702 kern_ptr = (uint8_t *)kern_sglist[j].addr; 1703 kern_ptr = kern_ptr + kern_watermark; 1704 1705 kern_watermark += len_to_copy; 1706 ext_watermark += len_to_copy; 1707 1708 if ((ctsio->io_hdr.flags & CTL_FLAG_DATA_MASK) == 1709 CTL_FLAG_DATA_IN) { 1710 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1711 "bytes to user\n", len_to_copy)); 1712 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1713 "to %p\n", kern_ptr, ext_ptr)); 1714 if (copyout(kern_ptr, ext_ptr, len_to_copy) != 0) { 1715 ctl_set_internal_failure(ctsio, 1716 /*sks_valid*/ 0, 1717 /*retry_count*/ 0); 1718 goto bailout; 1719 } 1720 } else { 1721 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1722 "bytes from user\n", len_to_copy)); 1723 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1724 "to %p\n", ext_ptr, kern_ptr)); 1725 if (copyin(ext_ptr, kern_ptr, len_to_copy)!= 0){ 1726 ctl_set_internal_failure(ctsio, 1727 /*sks_valid*/ 0, 1728 /*retry_count*/0); 1729 goto bailout; 1730 } 1731 } 1732 1733 len_copied += len_to_copy; 1734 1735 if (ext_sglist[i].len == ext_watermark) { 1736 i++; 1737 ext_watermark = 0; 1738 } 1739 1740 if (kern_sglist[j].len == kern_watermark) { 1741 j++; 1742 kern_watermark = 0; 1743 } 1744 } 1745 1746 ctsio->ext_data_filled += len_copied; 1747 1748 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_sg_entries: %d, " 1749 "kern_sg_entries: %d\n", ext_sg_entries, 1750 kern_sg_entries)); 1751 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_data_len = %d, " 1752 "kern_data_len = %d\n", ctsio->ext_data_len, 1753 ctsio->kern_data_len)); 1754 1755 1756 /* XXX KDM set residual?? */ 1757bailout: 1758 1759 if (ext_sglist_malloced != 0) 1760 free(ext_sglist, M_CTL); 1761 1762 return (CTL_RETVAL_COMPLETE); 1763} 1764 1765/* 1766 * Serialize a command that went down the "wrong" side, and so was sent to 1767 * this controller for execution. The logic is a little different than the 1768 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 1769 * sent back to the other side, but in the success case, we execute the 1770 * command on this side (XFER mode) or tell the other side to execute it 1771 * (SER_ONLY mode). 1772 */ 1773static int 1774ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 1775{ 1776 struct ctl_softc *ctl_softc; 1777 union ctl_ha_msg msg_info; 1778 struct ctl_lun *lun; 1779 int retval = 0; 1780 uint32_t targ_lun; 1781 1782 ctl_softc = control_softc; 1783 1784 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 1785 lun = ctl_softc->ctl_luns[targ_lun]; 1786 if (lun==NULL) 1787 { 1788 /* 1789 * Why isn't LUN defined? The other side wouldn't 1790 * send a cmd if the LUN is undefined. 1791 */ 1792 printf("%s: Bad JUJU!, LUN is NULL!\n", __func__); 1793 1794 /* "Logical unit not supported" */ 1795 ctl_set_sense_data(&msg_info.scsi.sense_data, 1796 lun, 1797 /*sense_format*/SSD_TYPE_NONE, 1798 /*current_error*/ 1, 1799 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1800 /*asc*/ 0x25, 1801 /*ascq*/ 0x00, 1802 SSD_ELEM_NONE); 1803 1804 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1805 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1806 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1807 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1808 msg_info.hdr.serializing_sc = NULL; 1809 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1810 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1811 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1812 } 1813 return(1); 1814 1815 } 1816 1817 mtx_lock(&lun->lun_lock); 1818 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1819 1820 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 1821 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 1822 ooa_links))) { 1823 case CTL_ACTION_BLOCK: 1824 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 1825 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 1826 blocked_links); 1827 break; 1828 case CTL_ACTION_PASS: 1829 case CTL_ACTION_SKIP: 1830 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 1831 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 1832 ctl_enqueue_rtr((union ctl_io *)ctsio); 1833 } else { 1834 1835 /* send msg back to other side */ 1836 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1837 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 1838 msg_info.hdr.msg_type = CTL_MSG_R2R; 1839#if 0 1840 printf("2. pOrig %x\n", (int)msg_info.hdr.original_sc); 1841#endif 1842 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1843 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1844 } 1845 } 1846 break; 1847 case CTL_ACTION_OVERLAP: 1848 /* OVERLAPPED COMMANDS ATTEMPTED */ 1849 ctl_set_sense_data(&msg_info.scsi.sense_data, 1850 lun, 1851 /*sense_format*/SSD_TYPE_NONE, 1852 /*current_error*/ 1, 1853 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1854 /*asc*/ 0x4E, 1855 /*ascq*/ 0x00, 1856 SSD_ELEM_NONE); 1857 1858 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1859 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1860 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1861 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1862 msg_info.hdr.serializing_sc = NULL; 1863 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1864#if 0 1865 printf("BAD JUJU:Major Bummer Overlap\n"); 1866#endif 1867 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1868 retval = 1; 1869 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1870 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1871 } 1872 break; 1873 case CTL_ACTION_OVERLAP_TAG: 1874 /* TAGGED OVERLAPPED COMMANDS (NN = QUEUE TAG) */ 1875 ctl_set_sense_data(&msg_info.scsi.sense_data, 1876 lun, 1877 /*sense_format*/SSD_TYPE_NONE, 1878 /*current_error*/ 1, 1879 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1880 /*asc*/ 0x4D, 1881 /*ascq*/ ctsio->tag_num & 0xff, 1882 SSD_ELEM_NONE); 1883 1884 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1885 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1886 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1887 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1888 msg_info.hdr.serializing_sc = NULL; 1889 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1890#if 0 1891 printf("BAD JUJU:Major Bummer Overlap Tag\n"); 1892#endif 1893 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1894 retval = 1; 1895 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1896 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1897 } 1898 break; 1899 case CTL_ACTION_ERROR: 1900 default: 1901 /* "Internal target failure" */ 1902 ctl_set_sense_data(&msg_info.scsi.sense_data, 1903 lun, 1904 /*sense_format*/SSD_TYPE_NONE, 1905 /*current_error*/ 1, 1906 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 1907 /*asc*/ 0x44, 1908 /*ascq*/ 0x00, 1909 SSD_ELEM_NONE); 1910 1911 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1912 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1913 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1914 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1915 msg_info.hdr.serializing_sc = NULL; 1916 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1917#if 0 1918 printf("BAD JUJU:Major Bummer HW Error\n"); 1919#endif 1920 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1921 retval = 1; 1922 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1923 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1924 } 1925 break; 1926 } 1927 mtx_unlock(&lun->lun_lock); 1928 return (retval); 1929} 1930 1931static int 1932ctl_ioctl_submit_wait(union ctl_io *io) 1933{ 1934 struct ctl_fe_ioctl_params params; 1935 ctl_fe_ioctl_state last_state; 1936 int done, retval; 1937 1938 retval = 0; 1939 1940 bzero(¶ms, sizeof(params)); 1941 1942 mtx_init(¶ms.ioctl_mtx, "ctliocmtx", NULL, MTX_DEF); 1943 cv_init(¶ms.sem, "ctlioccv"); 1944 params.state = CTL_IOCTL_INPROG; 1945 last_state = params.state; 1946 1947 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = ¶ms; 1948 1949 CTL_DEBUG_PRINT(("ctl_ioctl_submit_wait\n")); 1950 1951 /* This shouldn't happen */ 1952 if ((retval = ctl_queue(io)) != CTL_RETVAL_COMPLETE) 1953 return (retval); 1954 1955 done = 0; 1956 1957 do { 1958 mtx_lock(¶ms.ioctl_mtx); 1959 /* 1960 * Check the state here, and don't sleep if the state has 1961 * already changed (i.e. wakeup has already occured, but we 1962 * weren't waiting yet). 1963 */ 1964 if (params.state == last_state) { 1965 /* XXX KDM cv_wait_sig instead? */ 1966 cv_wait(¶ms.sem, ¶ms.ioctl_mtx); 1967 } 1968 last_state = params.state; 1969 1970 switch (params.state) { 1971 case CTL_IOCTL_INPROG: 1972 /* Why did we wake up? */ 1973 /* XXX KDM error here? */ 1974 mtx_unlock(¶ms.ioctl_mtx); 1975 break; 1976 case CTL_IOCTL_DATAMOVE: 1977 CTL_DEBUG_PRINT(("got CTL_IOCTL_DATAMOVE\n")); 1978 1979 /* 1980 * change last_state back to INPROG to avoid 1981 * deadlock on subsequent data moves. 1982 */ 1983 params.state = last_state = CTL_IOCTL_INPROG; 1984 1985 mtx_unlock(¶ms.ioctl_mtx); 1986 ctl_ioctl_do_datamove(&io->scsiio); 1987 /* 1988 * Note that in some cases, most notably writes, 1989 * this will queue the I/O and call us back later. 1990 * In other cases, generally reads, this routine 1991 * will immediately call back and wake us up, 1992 * probably using our own context. 1993 */ 1994 io->scsiio.be_move_done(io); 1995 break; 1996 case CTL_IOCTL_DONE: 1997 mtx_unlock(¶ms.ioctl_mtx); 1998 CTL_DEBUG_PRINT(("got CTL_IOCTL_DONE\n")); 1999 done = 1; 2000 break; 2001 default: 2002 mtx_unlock(¶ms.ioctl_mtx); 2003 /* XXX KDM error here? */ 2004 break; 2005 } 2006 } while (done == 0); 2007 2008 mtx_destroy(¶ms.ioctl_mtx); 2009 cv_destroy(¶ms.sem); 2010 2011 return (CTL_RETVAL_COMPLETE); 2012} 2013 2014static void 2015ctl_ioctl_datamove(union ctl_io *io) 2016{ 2017 struct ctl_fe_ioctl_params *params; 2018 2019 params = (struct ctl_fe_ioctl_params *) 2020 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 2021 2022 mtx_lock(¶ms->ioctl_mtx); 2023 params->state = CTL_IOCTL_DATAMOVE; 2024 cv_broadcast(¶ms->sem); 2025 mtx_unlock(¶ms->ioctl_mtx); 2026} 2027 2028static void 2029ctl_ioctl_done(union ctl_io *io) 2030{ 2031 struct ctl_fe_ioctl_params *params; 2032 2033 params = (struct ctl_fe_ioctl_params *) 2034 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 2035 2036 mtx_lock(¶ms->ioctl_mtx); 2037 params->state = CTL_IOCTL_DONE; 2038 cv_broadcast(¶ms->sem); 2039 mtx_unlock(¶ms->ioctl_mtx); 2040} 2041 2042static void 2043ctl_ioctl_hard_startstop_callback(void *arg, struct cfi_metatask *metatask) 2044{ 2045 struct ctl_fe_ioctl_startstop_info *sd_info; 2046 2047 sd_info = (struct ctl_fe_ioctl_startstop_info *)arg; 2048 2049 sd_info->hs_info.status = metatask->status; 2050 sd_info->hs_info.total_luns = metatask->taskinfo.startstop.total_luns; 2051 sd_info->hs_info.luns_complete = 2052 metatask->taskinfo.startstop.luns_complete; 2053 sd_info->hs_info.luns_failed = metatask->taskinfo.startstop.luns_failed; 2054 2055 cv_broadcast(&sd_info->sem); 2056} 2057 2058static void 2059ctl_ioctl_bbrread_callback(void *arg, struct cfi_metatask *metatask) 2060{ 2061 struct ctl_fe_ioctl_bbrread_info *fe_bbr_info; 2062 2063 fe_bbr_info = (struct ctl_fe_ioctl_bbrread_info *)arg; 2064 2065 mtx_lock(fe_bbr_info->lock); 2066 fe_bbr_info->bbr_info->status = metatask->status; 2067 fe_bbr_info->bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2068 fe_bbr_info->wakeup_done = 1; 2069 mtx_unlock(fe_bbr_info->lock); 2070 2071 cv_broadcast(&fe_bbr_info->sem); 2072} 2073 2074/* 2075 * Returns 0 for success, errno for failure. 2076 */ 2077static int 2078ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2079 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2080{ 2081 union ctl_io *io; 2082 int retval; 2083 2084 retval = 0; 2085 2086 mtx_lock(&lun->lun_lock); 2087 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2088 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2089 ooa_links)) { 2090 struct ctl_ooa_entry *entry; 2091 2092 /* 2093 * If we've got more than we can fit, just count the 2094 * remaining entries. 2095 */ 2096 if (*cur_fill_num >= ooa_hdr->alloc_num) 2097 continue; 2098 2099 entry = &kern_entries[*cur_fill_num]; 2100 2101 entry->tag_num = io->scsiio.tag_num; 2102 entry->lun_num = lun->lun; 2103#ifdef CTL_TIME_IO 2104 entry->start_bt = io->io_hdr.start_bt; 2105#endif 2106 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2107 entry->cdb_len = io->scsiio.cdb_len; 2108 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2109 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2110 2111 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2112 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2113 2114 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2115 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2116 2117 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2118 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2119 2120 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2121 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2122 } 2123 mtx_unlock(&lun->lun_lock); 2124 2125 return (retval); 2126} 2127 2128static void * 2129ctl_copyin_alloc(void *user_addr, int len, char *error_str, 2130 size_t error_str_len) 2131{ 2132 void *kptr; 2133 2134 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2135 2136 if (copyin(user_addr, kptr, len) != 0) { 2137 snprintf(error_str, error_str_len, "Error copying %d bytes " 2138 "from user address %p to kernel address %p", len, 2139 user_addr, kptr); 2140 free(kptr, M_CTL); 2141 return (NULL); 2142 } 2143 2144 return (kptr); 2145} 2146 2147static void 2148ctl_free_args(int num_args, struct ctl_be_arg *args) 2149{ 2150 int i; 2151 2152 if (args == NULL) 2153 return; 2154 2155 for (i = 0; i < num_args; i++) { 2156 free(args[i].kname, M_CTL); 2157 free(args[i].kvalue, M_CTL); 2158 } 2159 2160 free(args, M_CTL); 2161} 2162 2163static struct ctl_be_arg * 2164ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2165 char *error_str, size_t error_str_len) 2166{ 2167 struct ctl_be_arg *args; 2168 int i; 2169 2170 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2171 error_str, error_str_len); 2172 2173 if (args == NULL) 2174 goto bailout; 2175 2176 for (i = 0; i < num_args; i++) { 2177 args[i].kname = NULL; 2178 args[i].kvalue = NULL; 2179 } 2180 2181 for (i = 0; i < num_args; i++) { 2182 uint8_t *tmpptr; 2183 2184 args[i].kname = ctl_copyin_alloc(args[i].name, 2185 args[i].namelen, error_str, error_str_len); 2186 if (args[i].kname == NULL) 2187 goto bailout; 2188 2189 if (args[i].kname[args[i].namelen - 1] != '\0') { 2190 snprintf(error_str, error_str_len, "Argument %d " 2191 "name is not NUL-terminated", i); 2192 goto bailout; 2193 } 2194 2195 if (args[i].flags & CTL_BEARG_RD) { 2196 tmpptr = ctl_copyin_alloc(args[i].value, 2197 args[i].vallen, error_str, error_str_len); 2198 if (tmpptr == NULL) 2199 goto bailout; 2200 if ((args[i].flags & CTL_BEARG_ASCII) 2201 && (tmpptr[args[i].vallen - 1] != '\0')) { 2202 snprintf(error_str, error_str_len, "Argument " 2203 "%d value is not NUL-terminated", i); 2204 goto bailout; 2205 } 2206 args[i].kvalue = tmpptr; 2207 } else { 2208 args[i].kvalue = malloc(args[i].vallen, 2209 M_CTL, M_WAITOK | M_ZERO); 2210 } 2211 } 2212 2213 return (args); 2214bailout: 2215 2216 ctl_free_args(num_args, args); 2217 2218 return (NULL); 2219} 2220 2221static void 2222ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2223{ 2224 int i; 2225 2226 for (i = 0; i < num_args; i++) { 2227 if (args[i].flags & CTL_BEARG_WR) 2228 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2229 } 2230} 2231 2232/* 2233 * Escape characters that are illegal or not recommended in XML. 2234 */ 2235int 2236ctl_sbuf_printf_esc(struct sbuf *sb, char *str, int size) 2237{ 2238 char *end = str + size; 2239 int retval; 2240 2241 retval = 0; 2242 2243 for (; *str && str < end; str++) { 2244 switch (*str) { 2245 case '&': 2246 retval = sbuf_printf(sb, "&"); 2247 break; 2248 case '>': 2249 retval = sbuf_printf(sb, ">"); 2250 break; 2251 case '<': 2252 retval = sbuf_printf(sb, "<"); 2253 break; 2254 default: 2255 retval = sbuf_putc(sb, *str); 2256 break; 2257 } 2258 2259 if (retval != 0) 2260 break; 2261 2262 } 2263 2264 return (retval); 2265} 2266 2267static void 2268ctl_id_sbuf(struct ctl_devid *id, struct sbuf *sb) 2269{ 2270 struct scsi_vpd_id_descriptor *desc; 2271 int i; 2272 2273 if (id == NULL || id->len < 4) 2274 return; 2275 desc = (struct scsi_vpd_id_descriptor *)id->data; 2276 switch (desc->id_type & SVPD_ID_TYPE_MASK) { 2277 case SVPD_ID_TYPE_T10: 2278 sbuf_printf(sb, "t10."); 2279 break; 2280 case SVPD_ID_TYPE_EUI64: 2281 sbuf_printf(sb, "eui."); 2282 break; 2283 case SVPD_ID_TYPE_NAA: 2284 sbuf_printf(sb, "naa."); 2285 break; 2286 case SVPD_ID_TYPE_SCSI_NAME: 2287 break; 2288 } 2289 switch (desc->proto_codeset & SVPD_ID_CODESET_MASK) { 2290 case SVPD_ID_CODESET_BINARY: 2291 for (i = 0; i < desc->length; i++) 2292 sbuf_printf(sb, "%02x", desc->identifier[i]); 2293 break; 2294 case SVPD_ID_CODESET_ASCII: 2295 sbuf_printf(sb, "%.*s", (int)desc->length, 2296 (char *)desc->identifier); 2297 break; 2298 case SVPD_ID_CODESET_UTF8: 2299 sbuf_printf(sb, "%s", (char *)desc->identifier); 2300 break; 2301 } 2302} 2303 2304static int 2305ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2306 struct thread *td) 2307{ 2308 struct ctl_softc *softc; 2309 int retval; 2310 2311 softc = control_softc; 2312 2313 retval = 0; 2314 2315 switch (cmd) { 2316 case CTL_IO: { 2317 union ctl_io *io; 2318 void *pool_tmp; 2319 2320 /* 2321 * If we haven't been "enabled", don't allow any SCSI I/O 2322 * to this FETD. 2323 */ 2324 if ((softc->ioctl_info.flags & CTL_IOCTL_FLAG_ENABLED) == 0) { 2325 retval = EPERM; 2326 break; 2327 } 2328 2329 io = ctl_alloc_io(softc->ioctl_info.port.ctl_pool_ref); 2330 2331 /* 2332 * Need to save the pool reference so it doesn't get 2333 * spammed by the user's ctl_io. 2334 */ 2335 pool_tmp = io->io_hdr.pool; 2336 memcpy(io, (void *)addr, sizeof(*io)); 2337 io->io_hdr.pool = pool_tmp; 2338 2339 /* 2340 * No status yet, so make sure the status is set properly. 2341 */ 2342 io->io_hdr.status = CTL_STATUS_NONE; 2343 2344 /* 2345 * The user sets the initiator ID, target and LUN IDs. 2346 */ 2347 io->io_hdr.nexus.targ_port = softc->ioctl_info.port.targ_port; 2348 io->io_hdr.flags |= CTL_FLAG_USER_REQ; 2349 if ((io->io_hdr.io_type == CTL_IO_SCSI) 2350 && (io->scsiio.tag_type != CTL_TAG_UNTAGGED)) 2351 io->scsiio.tag_num = softc->ioctl_info.cur_tag_num++; 2352 2353 retval = ctl_ioctl_submit_wait(io); 2354 2355 if (retval != 0) { 2356 ctl_free_io(io); 2357 break; 2358 } 2359 2360 memcpy((void *)addr, io, sizeof(*io)); 2361 2362 /* return this to our pool */ 2363 ctl_free_io(io); 2364 2365 break; 2366 } 2367 case CTL_ENABLE_PORT: 2368 case CTL_DISABLE_PORT: 2369 case CTL_SET_PORT_WWNS: { 2370 struct ctl_port *port; 2371 struct ctl_port_entry *entry; 2372 2373 entry = (struct ctl_port_entry *)addr; 2374 2375 mtx_lock(&softc->ctl_lock); 2376 STAILQ_FOREACH(port, &softc->port_list, links) { 2377 int action, done; 2378 2379 action = 0; 2380 done = 0; 2381 2382 if ((entry->port_type == CTL_PORT_NONE) 2383 && (entry->targ_port == port->targ_port)) { 2384 /* 2385 * If the user only wants to enable or 2386 * disable or set WWNs on a specific port, 2387 * do the operation and we're done. 2388 */ 2389 action = 1; 2390 done = 1; 2391 } else if (entry->port_type & port->port_type) { 2392 /* 2393 * Compare the user's type mask with the 2394 * particular frontend type to see if we 2395 * have a match. 2396 */ 2397 action = 1; 2398 done = 0; 2399 2400 /* 2401 * Make sure the user isn't trying to set 2402 * WWNs on multiple ports at the same time. 2403 */ 2404 if (cmd == CTL_SET_PORT_WWNS) { 2405 printf("%s: Can't set WWNs on " 2406 "multiple ports\n", __func__); 2407 retval = EINVAL; 2408 break; 2409 } 2410 } 2411 if (action != 0) { 2412 /* 2413 * XXX KDM we have to drop the lock here, 2414 * because the online/offline operations 2415 * can potentially block. We need to 2416 * reference count the frontends so they 2417 * can't go away, 2418 */ 2419 mtx_unlock(&softc->ctl_lock); 2420 2421 if (cmd == CTL_ENABLE_PORT) { 2422 struct ctl_lun *lun; 2423 2424 STAILQ_FOREACH(lun, &softc->lun_list, 2425 links) { 2426 port->lun_enable(port->targ_lun_arg, 2427 lun->target, 2428 lun->lun); 2429 } 2430 2431 ctl_port_online(port); 2432 } else if (cmd == CTL_DISABLE_PORT) { 2433 struct ctl_lun *lun; 2434 2435 ctl_port_offline(port); 2436 2437 STAILQ_FOREACH(lun, &softc->lun_list, 2438 links) { 2439 port->lun_disable( 2440 port->targ_lun_arg, 2441 lun->target, 2442 lun->lun); 2443 } 2444 } 2445 2446 mtx_lock(&softc->ctl_lock); 2447 2448 if (cmd == CTL_SET_PORT_WWNS) 2449 ctl_port_set_wwns(port, 2450 (entry->flags & CTL_PORT_WWNN_VALID) ? 2451 1 : 0, entry->wwnn, 2452 (entry->flags & CTL_PORT_WWPN_VALID) ? 2453 1 : 0, entry->wwpn); 2454 } 2455 if (done != 0) 2456 break; 2457 } 2458 mtx_unlock(&softc->ctl_lock); 2459 break; 2460 } 2461 case CTL_GET_PORT_LIST: { 2462 struct ctl_port *port; 2463 struct ctl_port_list *list; 2464 int i; 2465 2466 list = (struct ctl_port_list *)addr; 2467 2468 if (list->alloc_len != (list->alloc_num * 2469 sizeof(struct ctl_port_entry))) { 2470 printf("%s: CTL_GET_PORT_LIST: alloc_len %u != " 2471 "alloc_num %u * sizeof(struct ctl_port_entry) " 2472 "%zu\n", __func__, list->alloc_len, 2473 list->alloc_num, sizeof(struct ctl_port_entry)); 2474 retval = EINVAL; 2475 break; 2476 } 2477 list->fill_len = 0; 2478 list->fill_num = 0; 2479 list->dropped_num = 0; 2480 i = 0; 2481 mtx_lock(&softc->ctl_lock); 2482 STAILQ_FOREACH(port, &softc->port_list, links) { 2483 struct ctl_port_entry entry, *list_entry; 2484 2485 if (list->fill_num >= list->alloc_num) { 2486 list->dropped_num++; 2487 continue; 2488 } 2489 2490 entry.port_type = port->port_type; 2491 strlcpy(entry.port_name, port->port_name, 2492 sizeof(entry.port_name)); 2493 entry.targ_port = port->targ_port; 2494 entry.physical_port = port->physical_port; 2495 entry.virtual_port = port->virtual_port; 2496 entry.wwnn = port->wwnn; 2497 entry.wwpn = port->wwpn; 2498 if (port->status & CTL_PORT_STATUS_ONLINE) 2499 entry.online = 1; 2500 else 2501 entry.online = 0; 2502 2503 list_entry = &list->entries[i]; 2504 2505 retval = copyout(&entry, list_entry, sizeof(entry)); 2506 if (retval != 0) { 2507 printf("%s: CTL_GET_PORT_LIST: copyout " 2508 "returned %d\n", __func__, retval); 2509 break; 2510 } 2511 i++; 2512 list->fill_num++; 2513 list->fill_len += sizeof(entry); 2514 } 2515 mtx_unlock(&softc->ctl_lock); 2516 2517 /* 2518 * If this is non-zero, we had a copyout fault, so there's 2519 * probably no point in attempting to set the status inside 2520 * the structure. 2521 */ 2522 if (retval != 0) 2523 break; 2524 2525 if (list->dropped_num > 0) 2526 list->status = CTL_PORT_LIST_NEED_MORE_SPACE; 2527 else 2528 list->status = CTL_PORT_LIST_OK; 2529 break; 2530 } 2531 case CTL_DUMP_OOA: { 2532 struct ctl_lun *lun; 2533 union ctl_io *io; 2534 char printbuf[128]; 2535 struct sbuf sb; 2536 2537 mtx_lock(&softc->ctl_lock); 2538 printf("Dumping OOA queues:\n"); 2539 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2540 mtx_lock(&lun->lun_lock); 2541 for (io = (union ctl_io *)TAILQ_FIRST( 2542 &lun->ooa_queue); io != NULL; 2543 io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2544 ooa_links)) { 2545 sbuf_new(&sb, printbuf, sizeof(printbuf), 2546 SBUF_FIXEDLEN); 2547 sbuf_printf(&sb, "LUN %jd tag 0x%04x%s%s%s%s: ", 2548 (intmax_t)lun->lun, 2549 io->scsiio.tag_num, 2550 (io->io_hdr.flags & 2551 CTL_FLAG_BLOCKED) ? "" : " BLOCKED", 2552 (io->io_hdr.flags & 2553 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 2554 (io->io_hdr.flags & 2555 CTL_FLAG_ABORT) ? " ABORT" : "", 2556 (io->io_hdr.flags & 2557 CTL_FLAG_IS_WAS_ON_RTR) ? " RTR" : ""); 2558 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 2559 sbuf_finish(&sb); 2560 printf("%s\n", sbuf_data(&sb)); 2561 } 2562 mtx_unlock(&lun->lun_lock); 2563 } 2564 printf("OOA queues dump done\n"); 2565 mtx_unlock(&softc->ctl_lock); 2566 break; 2567 } 2568 case CTL_GET_OOA: { 2569 struct ctl_lun *lun; 2570 struct ctl_ooa *ooa_hdr; 2571 struct ctl_ooa_entry *entries; 2572 uint32_t cur_fill_num; 2573 2574 ooa_hdr = (struct ctl_ooa *)addr; 2575 2576 if ((ooa_hdr->alloc_len == 0) 2577 || (ooa_hdr->alloc_num == 0)) { 2578 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2579 "must be non-zero\n", __func__, 2580 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2581 retval = EINVAL; 2582 break; 2583 } 2584 2585 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2586 sizeof(struct ctl_ooa_entry))) { 2587 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2588 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2589 __func__, ooa_hdr->alloc_len, 2590 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2591 retval = EINVAL; 2592 break; 2593 } 2594 2595 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2596 if (entries == NULL) { 2597 printf("%s: could not allocate %d bytes for OOA " 2598 "dump\n", __func__, ooa_hdr->alloc_len); 2599 retval = ENOMEM; 2600 break; 2601 } 2602 2603 mtx_lock(&softc->ctl_lock); 2604 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2605 && ((ooa_hdr->lun_num >= CTL_MAX_LUNS) 2606 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2607 mtx_unlock(&softc->ctl_lock); 2608 free(entries, M_CTL); 2609 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2610 __func__, (uintmax_t)ooa_hdr->lun_num); 2611 retval = EINVAL; 2612 break; 2613 } 2614 2615 cur_fill_num = 0; 2616 2617 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2618 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2619 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2620 ooa_hdr, entries); 2621 if (retval != 0) 2622 break; 2623 } 2624 if (retval != 0) { 2625 mtx_unlock(&softc->ctl_lock); 2626 free(entries, M_CTL); 2627 break; 2628 } 2629 } else { 2630 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2631 2632 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num,ooa_hdr, 2633 entries); 2634 } 2635 mtx_unlock(&softc->ctl_lock); 2636 2637 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2638 ooa_hdr->fill_len = ooa_hdr->fill_num * 2639 sizeof(struct ctl_ooa_entry); 2640 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2641 if (retval != 0) { 2642 printf("%s: error copying out %d bytes for OOA dump\n", 2643 __func__, ooa_hdr->fill_len); 2644 } 2645 2646 getbintime(&ooa_hdr->cur_bt); 2647 2648 if (cur_fill_num > ooa_hdr->alloc_num) { 2649 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2650 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2651 } else { 2652 ooa_hdr->dropped_num = 0; 2653 ooa_hdr->status = CTL_OOA_OK; 2654 } 2655 2656 free(entries, M_CTL); 2657 break; 2658 } 2659 case CTL_CHECK_OOA: { 2660 union ctl_io *io; 2661 struct ctl_lun *lun; 2662 struct ctl_ooa_info *ooa_info; 2663 2664 2665 ooa_info = (struct ctl_ooa_info *)addr; 2666 2667 if (ooa_info->lun_id >= CTL_MAX_LUNS) { 2668 ooa_info->status = CTL_OOA_INVALID_LUN; 2669 break; 2670 } 2671 mtx_lock(&softc->ctl_lock); 2672 lun = softc->ctl_luns[ooa_info->lun_id]; 2673 if (lun == NULL) { 2674 mtx_unlock(&softc->ctl_lock); 2675 ooa_info->status = CTL_OOA_INVALID_LUN; 2676 break; 2677 } 2678 mtx_lock(&lun->lun_lock); 2679 mtx_unlock(&softc->ctl_lock); 2680 ooa_info->num_entries = 0; 2681 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 2682 io != NULL; io = (union ctl_io *)TAILQ_NEXT( 2683 &io->io_hdr, ooa_links)) { 2684 ooa_info->num_entries++; 2685 } 2686 mtx_unlock(&lun->lun_lock); 2687 2688 ooa_info->status = CTL_OOA_SUCCESS; 2689 2690 break; 2691 } 2692 case CTL_HARD_START: 2693 case CTL_HARD_STOP: { 2694 struct ctl_fe_ioctl_startstop_info ss_info; 2695 struct cfi_metatask *metatask; 2696 struct mtx hs_mtx; 2697 2698 mtx_init(&hs_mtx, "HS Mutex", NULL, MTX_DEF); 2699 2700 cv_init(&ss_info.sem, "hard start/stop cv" ); 2701 2702 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2703 if (metatask == NULL) { 2704 retval = ENOMEM; 2705 mtx_destroy(&hs_mtx); 2706 break; 2707 } 2708 2709 if (cmd == CTL_HARD_START) 2710 metatask->tasktype = CFI_TASK_STARTUP; 2711 else 2712 metatask->tasktype = CFI_TASK_SHUTDOWN; 2713 2714 metatask->callback = ctl_ioctl_hard_startstop_callback; 2715 metatask->callback_arg = &ss_info; 2716 2717 cfi_action(metatask); 2718 2719 /* Wait for the callback */ 2720 mtx_lock(&hs_mtx); 2721 cv_wait_sig(&ss_info.sem, &hs_mtx); 2722 mtx_unlock(&hs_mtx); 2723 2724 /* 2725 * All information has been copied from the metatask by the 2726 * time cv_broadcast() is called, so we free the metatask here. 2727 */ 2728 cfi_free_metatask(metatask); 2729 2730 memcpy((void *)addr, &ss_info.hs_info, sizeof(ss_info.hs_info)); 2731 2732 mtx_destroy(&hs_mtx); 2733 break; 2734 } 2735 case CTL_BBRREAD: { 2736 struct ctl_bbrread_info *bbr_info; 2737 struct ctl_fe_ioctl_bbrread_info fe_bbr_info; 2738 struct mtx bbr_mtx; 2739 struct cfi_metatask *metatask; 2740 2741 bbr_info = (struct ctl_bbrread_info *)addr; 2742 2743 bzero(&fe_bbr_info, sizeof(fe_bbr_info)); 2744 2745 bzero(&bbr_mtx, sizeof(bbr_mtx)); 2746 mtx_init(&bbr_mtx, "BBR Mutex", NULL, MTX_DEF); 2747 2748 fe_bbr_info.bbr_info = bbr_info; 2749 fe_bbr_info.lock = &bbr_mtx; 2750 2751 cv_init(&fe_bbr_info.sem, "BBR read cv"); 2752 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2753 2754 if (metatask == NULL) { 2755 mtx_destroy(&bbr_mtx); 2756 cv_destroy(&fe_bbr_info.sem); 2757 retval = ENOMEM; 2758 break; 2759 } 2760 metatask->tasktype = CFI_TASK_BBRREAD; 2761 metatask->callback = ctl_ioctl_bbrread_callback; 2762 metatask->callback_arg = &fe_bbr_info; 2763 metatask->taskinfo.bbrread.lun_num = bbr_info->lun_num; 2764 metatask->taskinfo.bbrread.lba = bbr_info->lba; 2765 metatask->taskinfo.bbrread.len = bbr_info->len; 2766 2767 cfi_action(metatask); 2768 2769 mtx_lock(&bbr_mtx); 2770 while (fe_bbr_info.wakeup_done == 0) 2771 cv_wait_sig(&fe_bbr_info.sem, &bbr_mtx); 2772 mtx_unlock(&bbr_mtx); 2773 2774 bbr_info->status = metatask->status; 2775 bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2776 bbr_info->scsi_status = metatask->taskinfo.bbrread.scsi_status; 2777 memcpy(&bbr_info->sense_data, 2778 &metatask->taskinfo.bbrread.sense_data, 2779 ctl_min(sizeof(bbr_info->sense_data), 2780 sizeof(metatask->taskinfo.bbrread.sense_data))); 2781 2782 cfi_free_metatask(metatask); 2783 2784 mtx_destroy(&bbr_mtx); 2785 cv_destroy(&fe_bbr_info.sem); 2786 2787 break; 2788 } 2789 case CTL_DELAY_IO: { 2790 struct ctl_io_delay_info *delay_info; 2791#ifdef CTL_IO_DELAY 2792 struct ctl_lun *lun; 2793#endif /* CTL_IO_DELAY */ 2794 2795 delay_info = (struct ctl_io_delay_info *)addr; 2796 2797#ifdef CTL_IO_DELAY 2798 mtx_lock(&softc->ctl_lock); 2799 2800 if ((delay_info->lun_id >= CTL_MAX_LUNS) 2801 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2802 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2803 } else { 2804 lun = softc->ctl_luns[delay_info->lun_id]; 2805 mtx_lock(&lun->lun_lock); 2806 2807 delay_info->status = CTL_DELAY_STATUS_OK; 2808 2809 switch (delay_info->delay_type) { 2810 case CTL_DELAY_TYPE_CONT: 2811 break; 2812 case CTL_DELAY_TYPE_ONESHOT: 2813 break; 2814 default: 2815 delay_info->status = 2816 CTL_DELAY_STATUS_INVALID_TYPE; 2817 break; 2818 } 2819 2820 switch (delay_info->delay_loc) { 2821 case CTL_DELAY_LOC_DATAMOVE: 2822 lun->delay_info.datamove_type = 2823 delay_info->delay_type; 2824 lun->delay_info.datamove_delay = 2825 delay_info->delay_secs; 2826 break; 2827 case CTL_DELAY_LOC_DONE: 2828 lun->delay_info.done_type = 2829 delay_info->delay_type; 2830 lun->delay_info.done_delay = 2831 delay_info->delay_secs; 2832 break; 2833 default: 2834 delay_info->status = 2835 CTL_DELAY_STATUS_INVALID_LOC; 2836 break; 2837 } 2838 mtx_unlock(&lun->lun_lock); 2839 } 2840 2841 mtx_unlock(&softc->ctl_lock); 2842#else 2843 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2844#endif /* CTL_IO_DELAY */ 2845 break; 2846 } 2847 case CTL_REALSYNC_SET: { 2848 int *syncstate; 2849 2850 syncstate = (int *)addr; 2851 2852 mtx_lock(&softc->ctl_lock); 2853 switch (*syncstate) { 2854 case 0: 2855 softc->flags &= ~CTL_FLAG_REAL_SYNC; 2856 break; 2857 case 1: 2858 softc->flags |= CTL_FLAG_REAL_SYNC; 2859 break; 2860 default: 2861 retval = EINVAL; 2862 break; 2863 } 2864 mtx_unlock(&softc->ctl_lock); 2865 break; 2866 } 2867 case CTL_REALSYNC_GET: { 2868 int *syncstate; 2869 2870 syncstate = (int*)addr; 2871 2872 mtx_lock(&softc->ctl_lock); 2873 if (softc->flags & CTL_FLAG_REAL_SYNC) 2874 *syncstate = 1; 2875 else 2876 *syncstate = 0; 2877 mtx_unlock(&softc->ctl_lock); 2878 2879 break; 2880 } 2881 case CTL_SETSYNC: 2882 case CTL_GETSYNC: { 2883 struct ctl_sync_info *sync_info; 2884 struct ctl_lun *lun; 2885 2886 sync_info = (struct ctl_sync_info *)addr; 2887 2888 mtx_lock(&softc->ctl_lock); 2889 lun = softc->ctl_luns[sync_info->lun_id]; 2890 if (lun == NULL) { 2891 mtx_unlock(&softc->ctl_lock); 2892 sync_info->status = CTL_GS_SYNC_NO_LUN; 2893 } 2894 /* 2895 * Get or set the sync interval. We're not bounds checking 2896 * in the set case, hopefully the user won't do something 2897 * silly. 2898 */ 2899 mtx_lock(&lun->lun_lock); 2900 mtx_unlock(&softc->ctl_lock); 2901 if (cmd == CTL_GETSYNC) 2902 sync_info->sync_interval = lun->sync_interval; 2903 else 2904 lun->sync_interval = sync_info->sync_interval; 2905 mtx_unlock(&lun->lun_lock); 2906 2907 sync_info->status = CTL_GS_SYNC_OK; 2908 2909 break; 2910 } 2911 case CTL_GETSTATS: { 2912 struct ctl_stats *stats; 2913 struct ctl_lun *lun; 2914 int i; 2915 2916 stats = (struct ctl_stats *)addr; 2917 2918 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2919 stats->alloc_len) { 2920 stats->status = CTL_SS_NEED_MORE_SPACE; 2921 stats->num_luns = softc->num_luns; 2922 break; 2923 } 2924 /* 2925 * XXX KDM no locking here. If the LUN list changes, 2926 * things can blow up. 2927 */ 2928 for (i = 0, lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; 2929 i++, lun = STAILQ_NEXT(lun, links)) { 2930 retval = copyout(&lun->stats, &stats->lun_stats[i], 2931 sizeof(lun->stats)); 2932 if (retval != 0) 2933 break; 2934 } 2935 stats->num_luns = softc->num_luns; 2936 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2937 softc->num_luns; 2938 stats->status = CTL_SS_OK; 2939#ifdef CTL_TIME_IO 2940 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2941#else 2942 stats->flags = CTL_STATS_FLAG_NONE; 2943#endif 2944 getnanouptime(&stats->timestamp); 2945 break; 2946 } 2947 case CTL_ERROR_INJECT: { 2948 struct ctl_error_desc *err_desc, *new_err_desc; 2949 struct ctl_lun *lun; 2950 2951 err_desc = (struct ctl_error_desc *)addr; 2952 2953 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2954 M_WAITOK | M_ZERO); 2955 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2956 2957 mtx_lock(&softc->ctl_lock); 2958 lun = softc->ctl_luns[err_desc->lun_id]; 2959 if (lun == NULL) { 2960 mtx_unlock(&softc->ctl_lock); 2961 free(new_err_desc, M_CTL); 2962 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2963 __func__, (uintmax_t)err_desc->lun_id); 2964 retval = EINVAL; 2965 break; 2966 } 2967 mtx_lock(&lun->lun_lock); 2968 mtx_unlock(&softc->ctl_lock); 2969 2970 /* 2971 * We could do some checking here to verify the validity 2972 * of the request, but given the complexity of error 2973 * injection requests, the checking logic would be fairly 2974 * complex. 2975 * 2976 * For now, if the request is invalid, it just won't get 2977 * executed and might get deleted. 2978 */ 2979 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2980 2981 /* 2982 * XXX KDM check to make sure the serial number is unique, 2983 * in case we somehow manage to wrap. That shouldn't 2984 * happen for a very long time, but it's the right thing to 2985 * do. 2986 */ 2987 new_err_desc->serial = lun->error_serial; 2988 err_desc->serial = lun->error_serial; 2989 lun->error_serial++; 2990 2991 mtx_unlock(&lun->lun_lock); 2992 break; 2993 } 2994 case CTL_ERROR_INJECT_DELETE: { 2995 struct ctl_error_desc *delete_desc, *desc, *desc2; 2996 struct ctl_lun *lun; 2997 int delete_done; 2998 2999 delete_desc = (struct ctl_error_desc *)addr; 3000 delete_done = 0; 3001 3002 mtx_lock(&softc->ctl_lock); 3003 lun = softc->ctl_luns[delete_desc->lun_id]; 3004 if (lun == NULL) { 3005 mtx_unlock(&softc->ctl_lock); 3006 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 3007 __func__, (uintmax_t)delete_desc->lun_id); 3008 retval = EINVAL; 3009 break; 3010 } 3011 mtx_lock(&lun->lun_lock); 3012 mtx_unlock(&softc->ctl_lock); 3013 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 3014 if (desc->serial != delete_desc->serial) 3015 continue; 3016 3017 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 3018 links); 3019 free(desc, M_CTL); 3020 delete_done = 1; 3021 } 3022 mtx_unlock(&lun->lun_lock); 3023 if (delete_done == 0) { 3024 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 3025 "error serial %ju on LUN %u\n", __func__, 3026 delete_desc->serial, delete_desc->lun_id); 3027 retval = EINVAL; 3028 break; 3029 } 3030 break; 3031 } 3032 case CTL_DUMP_STRUCTS: { 3033 int i, j, k; 3034 struct ctl_port *port; 3035 struct ctl_frontend *fe; 3036 3037 mtx_lock(&softc->ctl_lock); 3038 printf("CTL Persistent Reservation information start:\n"); 3039 for (i = 0; i < CTL_MAX_LUNS; i++) { 3040 struct ctl_lun *lun; 3041 3042 lun = softc->ctl_luns[i]; 3043 3044 if ((lun == NULL) 3045 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 3046 continue; 3047 3048 for (j = 0; j < (CTL_MAX_PORTS * 2); j++) { 3049 if (lun->pr_keys[j] == NULL) 3050 continue; 3051 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 3052 if (lun->pr_keys[j][k] == 0) 3053 continue; 3054 printf(" LUN %d port %d iid %d key " 3055 "%#jx\n", i, j, k, 3056 (uintmax_t)lun->pr_keys[j][k]); 3057 } 3058 } 3059 } 3060 printf("CTL Persistent Reservation information end\n"); 3061 printf("CTL Ports:\n"); 3062 STAILQ_FOREACH(port, &softc->port_list, links) { 3063 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 3064 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 3065 port->frontend->name, port->port_type, 3066 port->physical_port, port->virtual_port, 3067 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 3068 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3069 if (port->wwpn_iid[j].in_use == 0 && 3070 port->wwpn_iid[j].wwpn == 0 && 3071 port->wwpn_iid[j].name == NULL) 3072 continue; 3073 3074 printf(" iid %u use %d WWPN %#jx '%s'\n", 3075 j, port->wwpn_iid[j].in_use, 3076 (uintmax_t)port->wwpn_iid[j].wwpn, 3077 port->wwpn_iid[j].name); 3078 } 3079 } 3080 printf("CTL Port information end\n"); 3081 mtx_unlock(&softc->ctl_lock); 3082 /* 3083 * XXX KDM calling this without a lock. We'd likely want 3084 * to drop the lock before calling the frontend's dump 3085 * routine anyway. 3086 */ 3087 printf("CTL Frontends:\n"); 3088 STAILQ_FOREACH(fe, &softc->fe_list, links) { 3089 printf(" Frontend '%s'\n", fe->name); 3090 if (fe->fe_dump != NULL) 3091 fe->fe_dump(); 3092 } 3093 printf("CTL Frontend information end\n"); 3094 break; 3095 } 3096 case CTL_LUN_REQ: { 3097 struct ctl_lun_req *lun_req; 3098 struct ctl_backend_driver *backend; 3099 3100 lun_req = (struct ctl_lun_req *)addr; 3101 3102 backend = ctl_backend_find(lun_req->backend); 3103 if (backend == NULL) { 3104 lun_req->status = CTL_LUN_ERROR; 3105 snprintf(lun_req->error_str, 3106 sizeof(lun_req->error_str), 3107 "Backend \"%s\" not found.", 3108 lun_req->backend); 3109 break; 3110 } 3111 if (lun_req->num_be_args > 0) { 3112 lun_req->kern_be_args = ctl_copyin_args( 3113 lun_req->num_be_args, 3114 lun_req->be_args, 3115 lun_req->error_str, 3116 sizeof(lun_req->error_str)); 3117 if (lun_req->kern_be_args == NULL) { 3118 lun_req->status = CTL_LUN_ERROR; 3119 break; 3120 } 3121 } 3122 3123 retval = backend->ioctl(dev, cmd, addr, flag, td); 3124 3125 if (lun_req->num_be_args > 0) { 3126 ctl_copyout_args(lun_req->num_be_args, 3127 lun_req->kern_be_args); 3128 ctl_free_args(lun_req->num_be_args, 3129 lun_req->kern_be_args); 3130 } 3131 break; 3132 } 3133 case CTL_LUN_LIST: { 3134 struct sbuf *sb; 3135 struct ctl_lun *lun; 3136 struct ctl_lun_list *list; 3137 struct ctl_option *opt; 3138 3139 list = (struct ctl_lun_list *)addr; 3140 3141 /* 3142 * Allocate a fixed length sbuf here, based on the length 3143 * of the user's buffer. We could allocate an auto-extending 3144 * buffer, and then tell the user how much larger our 3145 * amount of data is than his buffer, but that presents 3146 * some problems: 3147 * 3148 * 1. The sbuf(9) routines use a blocking malloc, and so 3149 * we can't hold a lock while calling them with an 3150 * auto-extending buffer. 3151 * 3152 * 2. There is not currently a LUN reference counting 3153 * mechanism, outside of outstanding transactions on 3154 * the LUN's OOA queue. So a LUN could go away on us 3155 * while we're getting the LUN number, backend-specific 3156 * information, etc. Thus, given the way things 3157 * currently work, we need to hold the CTL lock while 3158 * grabbing LUN information. 3159 * 3160 * So, from the user's standpoint, the best thing to do is 3161 * allocate what he thinks is a reasonable buffer length, 3162 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3163 * double the buffer length and try again. (And repeat 3164 * that until he succeeds.) 3165 */ 3166 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3167 if (sb == NULL) { 3168 list->status = CTL_LUN_LIST_ERROR; 3169 snprintf(list->error_str, sizeof(list->error_str), 3170 "Unable to allocate %d bytes for LUN list", 3171 list->alloc_len); 3172 break; 3173 } 3174 3175 sbuf_printf(sb, "<ctllunlist>\n"); 3176 3177 mtx_lock(&softc->ctl_lock); 3178 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3179 mtx_lock(&lun->lun_lock); 3180 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3181 (uintmax_t)lun->lun); 3182 3183 /* 3184 * Bail out as soon as we see that we've overfilled 3185 * the buffer. 3186 */ 3187 if (retval != 0) 3188 break; 3189 3190 retval = sbuf_printf(sb, "\t<backend_type>%s" 3191 "</backend_type>\n", 3192 (lun->backend == NULL) ? "none" : 3193 lun->backend->name); 3194 3195 if (retval != 0) 3196 break; 3197 3198 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3199 lun->be_lun->lun_type); 3200 3201 if (retval != 0) 3202 break; 3203 3204 if (lun->backend == NULL) { 3205 retval = sbuf_printf(sb, "</lun>\n"); 3206 if (retval != 0) 3207 break; 3208 continue; 3209 } 3210 3211 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3212 (lun->be_lun->maxlba > 0) ? 3213 lun->be_lun->maxlba + 1 : 0); 3214 3215 if (retval != 0) 3216 break; 3217 3218 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3219 lun->be_lun->blocksize); 3220 3221 if (retval != 0) 3222 break; 3223 3224 retval = sbuf_printf(sb, "\t<serial_number>"); 3225 3226 if (retval != 0) 3227 break; 3228 3229 retval = ctl_sbuf_printf_esc(sb, 3230 lun->be_lun->serial_num, 3231 sizeof(lun->be_lun->serial_num)); 3232 3233 if (retval != 0) 3234 break; 3235 3236 retval = sbuf_printf(sb, "</serial_number>\n"); 3237 3238 if (retval != 0) 3239 break; 3240 3241 retval = sbuf_printf(sb, "\t<device_id>"); 3242 3243 if (retval != 0) 3244 break; 3245 3246 retval = ctl_sbuf_printf_esc(sb, 3247 lun->be_lun->device_id, 3248 sizeof(lun->be_lun->device_id)); 3249 3250 if (retval != 0) 3251 break; 3252 3253 retval = sbuf_printf(sb, "</device_id>\n"); 3254 3255 if (retval != 0) 3256 break; 3257 3258 if (lun->backend->lun_info != NULL) { 3259 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3260 if (retval != 0) 3261 break; 3262 } 3263 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3264 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3265 opt->name, opt->value, opt->name); 3266 if (retval != 0) 3267 break; 3268 } 3269 3270 retval = sbuf_printf(sb, "</lun>\n"); 3271 3272 if (retval != 0) 3273 break; 3274 mtx_unlock(&lun->lun_lock); 3275 } 3276 if (lun != NULL) 3277 mtx_unlock(&lun->lun_lock); 3278 mtx_unlock(&softc->ctl_lock); 3279 3280 if ((retval != 0) 3281 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3282 retval = 0; 3283 sbuf_delete(sb); 3284 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3285 snprintf(list->error_str, sizeof(list->error_str), 3286 "Out of space, %d bytes is too small", 3287 list->alloc_len); 3288 break; 3289 } 3290 3291 sbuf_finish(sb); 3292 3293 retval = copyout(sbuf_data(sb), list->lun_xml, 3294 sbuf_len(sb) + 1); 3295 3296 list->fill_len = sbuf_len(sb) + 1; 3297 list->status = CTL_LUN_LIST_OK; 3298 sbuf_delete(sb); 3299 break; 3300 } 3301 case CTL_ISCSI: { 3302 struct ctl_iscsi *ci; 3303 struct ctl_frontend *fe; 3304 3305 ci = (struct ctl_iscsi *)addr; 3306 3307 fe = ctl_frontend_find("iscsi"); 3308 if (fe == NULL) { 3309 ci->status = CTL_ISCSI_ERROR; 3310 snprintf(ci->error_str, sizeof(ci->error_str), 3311 "Frontend \"iscsi\" not found."); 3312 break; 3313 } 3314 3315 retval = fe->ioctl(dev, cmd, addr, flag, td); 3316 break; 3317 } 3318 case CTL_PORT_REQ: { 3319 struct ctl_req *req; 3320 struct ctl_frontend *fe; 3321 3322 req = (struct ctl_req *)addr; 3323 3324 fe = ctl_frontend_find(req->driver); 3325 if (fe == NULL) { 3326 req->status = CTL_LUN_ERROR; 3327 snprintf(req->error_str, sizeof(req->error_str), 3328 "Frontend \"%s\" not found.", req->driver); 3329 break; 3330 } 3331 if (req->num_args > 0) { 3332 req->kern_args = ctl_copyin_args(req->num_args, 3333 req->args, req->error_str, sizeof(req->error_str)); 3334 if (req->kern_args == NULL) { 3335 req->status = CTL_LUN_ERROR; 3336 break; 3337 } 3338 } 3339 3340 retval = fe->ioctl(dev, cmd, addr, flag, td); 3341 3342 if (req->num_args > 0) { 3343 ctl_copyout_args(req->num_args, req->kern_args); 3344 ctl_free_args(req->num_args, req->kern_args); 3345 } 3346 break; 3347 } 3348 case CTL_PORT_LIST: { 3349 struct sbuf *sb; 3350 struct ctl_port *port; 3351 struct ctl_lun_list *list; 3352 struct ctl_option *opt; 3353 int j; 3354 3355 list = (struct ctl_lun_list *)addr; 3356 3357 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3358 if (sb == NULL) { 3359 list->status = CTL_LUN_LIST_ERROR; 3360 snprintf(list->error_str, sizeof(list->error_str), 3361 "Unable to allocate %d bytes for LUN list", 3362 list->alloc_len); 3363 break; 3364 } 3365 3366 sbuf_printf(sb, "<ctlportlist>\n"); 3367 3368 mtx_lock(&softc->ctl_lock); 3369 STAILQ_FOREACH(port, &softc->port_list, links) { 3370 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3371 (uintmax_t)port->targ_port); 3372 3373 /* 3374 * Bail out as soon as we see that we've overfilled 3375 * the buffer. 3376 */ 3377 if (retval != 0) 3378 break; 3379 3380 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3381 "</frontend_type>\n", port->frontend->name); 3382 if (retval != 0) 3383 break; 3384 3385 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3386 port->port_type); 3387 if (retval != 0) 3388 break; 3389 3390 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3391 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3392 if (retval != 0) 3393 break; 3394 3395 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3396 port->port_name); 3397 if (retval != 0) 3398 break; 3399 3400 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3401 port->physical_port); 3402 if (retval != 0) 3403 break; 3404 3405 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3406 port->virtual_port); 3407 if (retval != 0) 3408 break; 3409 3410 if (port->target_devid != NULL) { 3411 sbuf_printf(sb, "\t<target>"); 3412 ctl_id_sbuf(port->target_devid, sb); 3413 sbuf_printf(sb, "</target>\n"); 3414 } 3415 3416 if (port->port_devid != NULL) { 3417 sbuf_printf(sb, "\t<port>"); 3418 ctl_id_sbuf(port->port_devid, sb); 3419 sbuf_printf(sb, "</port>\n"); 3420 } 3421 3422 if (port->port_info != NULL) { 3423 retval = port->port_info(port->onoff_arg, sb); 3424 if (retval != 0) 3425 break; 3426 } 3427 STAILQ_FOREACH(opt, &port->options, links) { 3428 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3429 opt->name, opt->value, opt->name); 3430 if (retval != 0) 3431 break; 3432 } 3433 3434 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3435 if (port->wwpn_iid[j].in_use == 0 || 3436 (port->wwpn_iid[j].wwpn == 0 && 3437 port->wwpn_iid[j].name == NULL)) 3438 continue; 3439 3440 if (port->wwpn_iid[j].name != NULL) 3441 retval = sbuf_printf(sb, 3442 "\t<initiator>%u %s</initiator>\n", 3443 j, port->wwpn_iid[j].name); 3444 else 3445 retval = sbuf_printf(sb, 3446 "\t<initiator>%u naa.%08jx</initiator>\n", 3447 j, port->wwpn_iid[j].wwpn); 3448 if (retval != 0) 3449 break; 3450 } 3451 if (retval != 0) 3452 break; 3453 3454 retval = sbuf_printf(sb, "</targ_port>\n"); 3455 if (retval != 0) 3456 break; 3457 } 3458 mtx_unlock(&softc->ctl_lock); 3459 3460 if ((retval != 0) 3461 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3462 retval = 0; 3463 sbuf_delete(sb); 3464 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3465 snprintf(list->error_str, sizeof(list->error_str), 3466 "Out of space, %d bytes is too small", 3467 list->alloc_len); 3468 break; 3469 } 3470 3471 sbuf_finish(sb); 3472 3473 retval = copyout(sbuf_data(sb), list->lun_xml, 3474 sbuf_len(sb) + 1); 3475 3476 list->fill_len = sbuf_len(sb) + 1; 3477 list->status = CTL_LUN_LIST_OK; 3478 sbuf_delete(sb); 3479 break; 3480 } 3481 default: { 3482 /* XXX KDM should we fix this? */ 3483#if 0 3484 struct ctl_backend_driver *backend; 3485 unsigned int type; 3486 int found; 3487 3488 found = 0; 3489 3490 /* 3491 * We encode the backend type as the ioctl type for backend 3492 * ioctls. So parse it out here, and then search for a 3493 * backend of this type. 3494 */ 3495 type = _IOC_TYPE(cmd); 3496 3497 STAILQ_FOREACH(backend, &softc->be_list, links) { 3498 if (backend->type == type) { 3499 found = 1; 3500 break; 3501 } 3502 } 3503 if (found == 0) { 3504 printf("ctl: unknown ioctl command %#lx or backend " 3505 "%d\n", cmd, type); 3506 retval = EINVAL; 3507 break; 3508 } 3509 retval = backend->ioctl(dev, cmd, addr, flag, td); 3510#endif 3511 retval = ENOTTY; 3512 break; 3513 } 3514 } 3515 return (retval); 3516} 3517 3518uint32_t 3519ctl_get_initindex(struct ctl_nexus *nexus) 3520{ 3521 if (nexus->targ_port < CTL_MAX_PORTS) 3522 return (nexus->initid.id + 3523 (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3524 else 3525 return (nexus->initid.id + 3526 ((nexus->targ_port - CTL_MAX_PORTS) * 3527 CTL_MAX_INIT_PER_PORT)); 3528} 3529 3530uint32_t 3531ctl_get_resindex(struct ctl_nexus *nexus) 3532{ 3533 return (nexus->initid.id + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3534} 3535 3536uint32_t 3537ctl_port_idx(int port_num) 3538{ 3539 if (port_num < CTL_MAX_PORTS) 3540 return(port_num); 3541 else 3542 return(port_num - CTL_MAX_PORTS); 3543} 3544 3545static uint32_t 3546ctl_map_lun(int port_num, uint32_t lun_id) 3547{ 3548 struct ctl_port *port; 3549 3550 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3551 if (port == NULL) 3552 return (UINT32_MAX); 3553 if (port->lun_map == NULL) 3554 return (lun_id); 3555 return (port->lun_map(port->targ_lun_arg, lun_id)); 3556} 3557 3558static uint32_t 3559ctl_map_lun_back(int port_num, uint32_t lun_id) 3560{ 3561 struct ctl_port *port; 3562 uint32_t i; 3563 3564 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3565 if (port->lun_map == NULL) 3566 return (lun_id); 3567 for (i = 0; i < CTL_MAX_LUNS; i++) { 3568 if (port->lun_map(port->targ_lun_arg, i) == lun_id) 3569 return (i); 3570 } 3571 return (UINT32_MAX); 3572} 3573 3574/* 3575 * Note: This only works for bitmask sizes that are at least 32 bits, and 3576 * that are a power of 2. 3577 */ 3578int 3579ctl_ffz(uint32_t *mask, uint32_t size) 3580{ 3581 uint32_t num_chunks, num_pieces; 3582 int i, j; 3583 3584 num_chunks = (size >> 5); 3585 if (num_chunks == 0) 3586 num_chunks++; 3587 num_pieces = ctl_min((sizeof(uint32_t) * 8), size); 3588 3589 for (i = 0; i < num_chunks; i++) { 3590 for (j = 0; j < num_pieces; j++) { 3591 if ((mask[i] & (1 << j)) == 0) 3592 return ((i << 5) + j); 3593 } 3594 } 3595 3596 return (-1); 3597} 3598 3599int 3600ctl_set_mask(uint32_t *mask, uint32_t bit) 3601{ 3602 uint32_t chunk, piece; 3603 3604 chunk = bit >> 5; 3605 piece = bit % (sizeof(uint32_t) * 8); 3606 3607 if ((mask[chunk] & (1 << piece)) != 0) 3608 return (-1); 3609 else 3610 mask[chunk] |= (1 << piece); 3611 3612 return (0); 3613} 3614 3615int 3616ctl_clear_mask(uint32_t *mask, uint32_t bit) 3617{ 3618 uint32_t chunk, piece; 3619 3620 chunk = bit >> 5; 3621 piece = bit % (sizeof(uint32_t) * 8); 3622 3623 if ((mask[chunk] & (1 << piece)) == 0) 3624 return (-1); 3625 else 3626 mask[chunk] &= ~(1 << piece); 3627 3628 return (0); 3629} 3630 3631int 3632ctl_is_set(uint32_t *mask, uint32_t bit) 3633{ 3634 uint32_t chunk, piece; 3635 3636 chunk = bit >> 5; 3637 piece = bit % (sizeof(uint32_t) * 8); 3638 3639 if ((mask[chunk] & (1 << piece)) == 0) 3640 return (0); 3641 else 3642 return (1); 3643} 3644 3645static uint64_t 3646ctl_get_prkey(struct ctl_lun *lun, uint32_t residx) 3647{ 3648 uint64_t *t; 3649 3650 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3651 if (t == NULL) 3652 return (0); 3653 return (t[residx % CTL_MAX_INIT_PER_PORT]); 3654} 3655 3656static void 3657ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx) 3658{ 3659 uint64_t *t; 3660 3661 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3662 if (t == NULL) 3663 return; 3664 t[residx % CTL_MAX_INIT_PER_PORT] = 0; 3665} 3666 3667static void 3668ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx) 3669{ 3670 uint64_t *p; 3671 u_int i; 3672 3673 i = residx/CTL_MAX_INIT_PER_PORT; 3674 if (lun->pr_keys[i] != NULL) 3675 return; 3676 mtx_unlock(&lun->lun_lock); 3677 p = malloc(sizeof(uint64_t) * CTL_MAX_INIT_PER_PORT, M_CTL, 3678 M_WAITOK | M_ZERO); 3679 mtx_lock(&lun->lun_lock); 3680 if (lun->pr_keys[i] == NULL) 3681 lun->pr_keys[i] = p; 3682 else 3683 free(p, M_CTL); 3684} 3685 3686static void 3687ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key) 3688{ 3689 uint64_t *t; 3690 3691 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3692 KASSERT(t != NULL, ("prkey %d is not allocated", residx)); 3693 t[residx % CTL_MAX_INIT_PER_PORT] = key; 3694} 3695 3696/* 3697 * ctl_softc, pool_name, total_ctl_io are passed in. 3698 * npool is passed out. 3699 */ 3700int 3701ctl_pool_create(struct ctl_softc *ctl_softc, const char *pool_name, 3702 uint32_t total_ctl_io, void **npool) 3703{ 3704#ifdef IO_POOLS 3705 struct ctl_io_pool *pool; 3706 3707 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3708 M_NOWAIT | M_ZERO); 3709 if (pool == NULL) 3710 return (ENOMEM); 3711 3712 snprintf(pool->name, sizeof(pool->name), "CTL IO %s", pool_name); 3713 pool->ctl_softc = ctl_softc; 3714 pool->zone = uma_zsecond_create(pool->name, NULL, 3715 NULL, NULL, NULL, ctl_softc->io_zone); 3716 /* uma_prealloc(pool->zone, total_ctl_io); */ 3717 3718 *npool = pool; 3719#else 3720 *npool = ctl_softc->io_zone; 3721#endif 3722 return (0); 3723} 3724 3725void 3726ctl_pool_free(struct ctl_io_pool *pool) 3727{ 3728 3729 if (pool == NULL) 3730 return; 3731 3732#ifdef IO_POOLS 3733 uma_zdestroy(pool->zone); 3734 free(pool, M_CTL); 3735#endif 3736} 3737 3738union ctl_io * 3739ctl_alloc_io(void *pool_ref) 3740{ 3741 union ctl_io *io; 3742#ifdef IO_POOLS 3743 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3744 3745 io = uma_zalloc(pool->zone, M_WAITOK); 3746#else 3747 io = uma_zalloc((uma_zone_t)pool_ref, M_WAITOK); 3748#endif 3749 if (io != NULL) 3750 io->io_hdr.pool = pool_ref; 3751 return (io); 3752} 3753 3754union ctl_io * 3755ctl_alloc_io_nowait(void *pool_ref) 3756{ 3757 union ctl_io *io; 3758#ifdef IO_POOLS 3759 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3760 3761 io = uma_zalloc(pool->zone, M_NOWAIT); 3762#else 3763 io = uma_zalloc((uma_zone_t)pool_ref, M_NOWAIT); 3764#endif 3765 if (io != NULL) 3766 io->io_hdr.pool = pool_ref; 3767 return (io); 3768} 3769 3770void 3771ctl_free_io(union ctl_io *io) 3772{ 3773#ifdef IO_POOLS 3774 struct ctl_io_pool *pool; 3775#endif 3776 3777 if (io == NULL) 3778 return; 3779 3780#ifdef IO_POOLS 3781 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3782 uma_zfree(pool->zone, io); 3783#else 3784 uma_zfree((uma_zone_t)io->io_hdr.pool, io); 3785#endif 3786} 3787 3788void 3789ctl_zero_io(union ctl_io *io) 3790{ 3791 void *pool_ref; 3792 3793 if (io == NULL) 3794 return; 3795 3796 /* 3797 * May need to preserve linked list pointers at some point too. 3798 */ 3799 pool_ref = io->io_hdr.pool; 3800 memset(io, 0, sizeof(*io)); 3801 io->io_hdr.pool = pool_ref; 3802} 3803 3804/* 3805 * This routine is currently used for internal copies of ctl_ios that need 3806 * to persist for some reason after we've already returned status to the 3807 * FETD. (Thus the flag set.) 3808 * 3809 * XXX XXX 3810 * Note that this makes a blind copy of all fields in the ctl_io, except 3811 * for the pool reference. This includes any memory that has been 3812 * allocated! That memory will no longer be valid after done has been 3813 * called, so this would be VERY DANGEROUS for command that actually does 3814 * any reads or writes. Right now (11/7/2005), this is only used for immediate 3815 * start and stop commands, which don't transfer any data, so this is not a 3816 * problem. If it is used for anything else, the caller would also need to 3817 * allocate data buffer space and this routine would need to be modified to 3818 * copy the data buffer(s) as well. 3819 */ 3820void 3821ctl_copy_io(union ctl_io *src, union ctl_io *dest) 3822{ 3823 void *pool_ref; 3824 3825 if ((src == NULL) 3826 || (dest == NULL)) 3827 return; 3828 3829 /* 3830 * May need to preserve linked list pointers at some point too. 3831 */ 3832 pool_ref = dest->io_hdr.pool; 3833 3834 memcpy(dest, src, ctl_min(sizeof(*src), sizeof(*dest))); 3835 3836 dest->io_hdr.pool = pool_ref; 3837 /* 3838 * We need to know that this is an internal copy, and doesn't need 3839 * to get passed back to the FETD that allocated it. 3840 */ 3841 dest->io_hdr.flags |= CTL_FLAG_INT_COPY; 3842} 3843 3844static int 3845ctl_expand_number(const char *buf, uint64_t *num) 3846{ 3847 char *endptr; 3848 uint64_t number; 3849 unsigned shift; 3850 3851 number = strtoq(buf, &endptr, 0); 3852 3853 switch (tolower((unsigned char)*endptr)) { 3854 case 'e': 3855 shift = 60; 3856 break; 3857 case 'p': 3858 shift = 50; 3859 break; 3860 case 't': 3861 shift = 40; 3862 break; 3863 case 'g': 3864 shift = 30; 3865 break; 3866 case 'm': 3867 shift = 20; 3868 break; 3869 case 'k': 3870 shift = 10; 3871 break; 3872 case 'b': 3873 case '\0': /* No unit. */ 3874 *num = number; 3875 return (0); 3876 default: 3877 /* Unrecognized unit. */ 3878 return (-1); 3879 } 3880 3881 if ((number << shift) >> shift != number) { 3882 /* Overflow */ 3883 return (-1); 3884 } 3885 *num = number << shift; 3886 return (0); 3887} 3888 3889 3890/* 3891 * This routine could be used in the future to load default and/or saved 3892 * mode page parameters for a particuar lun. 3893 */ 3894static int 3895ctl_init_page_index(struct ctl_lun *lun) 3896{ 3897 int i; 3898 struct ctl_page_index *page_index; 3899 const char *value; 3900 uint64_t ival; 3901 3902 memcpy(&lun->mode_pages.index, page_index_template, 3903 sizeof(page_index_template)); 3904 3905 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 3906 3907 page_index = &lun->mode_pages.index[i]; 3908 /* 3909 * If this is a disk-only mode page, there's no point in 3910 * setting it up. For some pages, we have to have some 3911 * basic information about the disk in order to calculate the 3912 * mode page data. 3913 */ 3914 if ((lun->be_lun->lun_type != T_DIRECT) 3915 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 3916 continue; 3917 3918 switch (page_index->page_code & SMPH_PC_MASK) { 3919 case SMS_RW_ERROR_RECOVERY_PAGE: { 3920 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3921 panic("subpage is incorrect!"); 3922 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT], 3923 &rw_er_page_default, 3924 sizeof(rw_er_page_default)); 3925 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CHANGEABLE], 3926 &rw_er_page_changeable, 3927 sizeof(rw_er_page_changeable)); 3928 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_DEFAULT], 3929 &rw_er_page_default, 3930 sizeof(rw_er_page_default)); 3931 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_SAVED], 3932 &rw_er_page_default, 3933 sizeof(rw_er_page_default)); 3934 page_index->page_data = 3935 (uint8_t *)lun->mode_pages.rw_er_page; 3936 break; 3937 } 3938 case SMS_FORMAT_DEVICE_PAGE: { 3939 struct scsi_format_page *format_page; 3940 3941 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3942 panic("subpage is incorrect!"); 3943 3944 /* 3945 * Sectors per track are set above. Bytes per 3946 * sector need to be set here on a per-LUN basis. 3947 */ 3948 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 3949 &format_page_default, 3950 sizeof(format_page_default)); 3951 memcpy(&lun->mode_pages.format_page[ 3952 CTL_PAGE_CHANGEABLE], &format_page_changeable, 3953 sizeof(format_page_changeable)); 3954 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 3955 &format_page_default, 3956 sizeof(format_page_default)); 3957 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 3958 &format_page_default, 3959 sizeof(format_page_default)); 3960 3961 format_page = &lun->mode_pages.format_page[ 3962 CTL_PAGE_CURRENT]; 3963 scsi_ulto2b(lun->be_lun->blocksize, 3964 format_page->bytes_per_sector); 3965 3966 format_page = &lun->mode_pages.format_page[ 3967 CTL_PAGE_DEFAULT]; 3968 scsi_ulto2b(lun->be_lun->blocksize, 3969 format_page->bytes_per_sector); 3970 3971 format_page = &lun->mode_pages.format_page[ 3972 CTL_PAGE_SAVED]; 3973 scsi_ulto2b(lun->be_lun->blocksize, 3974 format_page->bytes_per_sector); 3975 3976 page_index->page_data = 3977 (uint8_t *)lun->mode_pages.format_page; 3978 break; 3979 } 3980 case SMS_RIGID_DISK_PAGE: { 3981 struct scsi_rigid_disk_page *rigid_disk_page; 3982 uint32_t sectors_per_cylinder; 3983 uint64_t cylinders; 3984#ifndef __XSCALE__ 3985 int shift; 3986#endif /* !__XSCALE__ */ 3987 3988 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3989 panic("invalid subpage value %d", 3990 page_index->subpage); 3991 3992 /* 3993 * Rotation rate and sectors per track are set 3994 * above. We calculate the cylinders here based on 3995 * capacity. Due to the number of heads and 3996 * sectors per track we're using, smaller arrays 3997 * may turn out to have 0 cylinders. Linux and 3998 * FreeBSD don't pay attention to these mode pages 3999 * to figure out capacity, but Solaris does. It 4000 * seems to deal with 0 cylinders just fine, and 4001 * works out a fake geometry based on the capacity. 4002 */ 4003 memcpy(&lun->mode_pages.rigid_disk_page[ 4004 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 4005 sizeof(rigid_disk_page_default)); 4006 memcpy(&lun->mode_pages.rigid_disk_page[ 4007 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4008 sizeof(rigid_disk_page_changeable)); 4009 4010 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4011 CTL_DEFAULT_HEADS; 4012 4013 /* 4014 * The divide method here will be more accurate, 4015 * probably, but results in floating point being 4016 * used in the kernel on i386 (__udivdi3()). On the 4017 * XScale, though, __udivdi3() is implemented in 4018 * software. 4019 * 4020 * The shift method for cylinder calculation is 4021 * accurate if sectors_per_cylinder is a power of 4022 * 2. Otherwise it might be slightly off -- you 4023 * might have a bit of a truncation problem. 4024 */ 4025#ifdef __XSCALE__ 4026 cylinders = (lun->be_lun->maxlba + 1) / 4027 sectors_per_cylinder; 4028#else 4029 for (shift = 31; shift > 0; shift--) { 4030 if (sectors_per_cylinder & (1 << shift)) 4031 break; 4032 } 4033 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4034#endif 4035 4036 /* 4037 * We've basically got 3 bytes, or 24 bits for the 4038 * cylinder size in the mode page. If we're over, 4039 * just round down to 2^24. 4040 */ 4041 if (cylinders > 0xffffff) 4042 cylinders = 0xffffff; 4043 4044 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4045 CTL_PAGE_DEFAULT]; 4046 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4047 4048 if ((value = ctl_get_opt(&lun->be_lun->options, 4049 "rpm")) != NULL) { 4050 scsi_ulto2b(strtol(value, NULL, 0), 4051 rigid_disk_page->rotation_rate); 4052 } 4053 4054 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_CURRENT], 4055 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4056 sizeof(rigid_disk_page_default)); 4057 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_SAVED], 4058 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4059 sizeof(rigid_disk_page_default)); 4060 4061 page_index->page_data = 4062 (uint8_t *)lun->mode_pages.rigid_disk_page; 4063 break; 4064 } 4065 case SMS_CACHING_PAGE: { 4066 struct scsi_caching_page *caching_page; 4067 4068 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4069 panic("invalid subpage value %d", 4070 page_index->subpage); 4071 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4072 &caching_page_default, 4073 sizeof(caching_page_default)); 4074 memcpy(&lun->mode_pages.caching_page[ 4075 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4076 sizeof(caching_page_changeable)); 4077 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4078 &caching_page_default, 4079 sizeof(caching_page_default)); 4080 caching_page = &lun->mode_pages.caching_page[ 4081 CTL_PAGE_SAVED]; 4082 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4083 if (value != NULL && strcmp(value, "off") == 0) 4084 caching_page->flags1 &= ~SCP_WCE; 4085 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4086 if (value != NULL && strcmp(value, "off") == 0) 4087 caching_page->flags1 |= SCP_RCD; 4088 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4089 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4090 sizeof(caching_page_default)); 4091 page_index->page_data = 4092 (uint8_t *)lun->mode_pages.caching_page; 4093 break; 4094 } 4095 case SMS_CONTROL_MODE_PAGE: { 4096 struct scsi_control_page *control_page; 4097 4098 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4099 panic("invalid subpage value %d", 4100 page_index->subpage); 4101 4102 memcpy(&lun->mode_pages.control_page[CTL_PAGE_DEFAULT], 4103 &control_page_default, 4104 sizeof(control_page_default)); 4105 memcpy(&lun->mode_pages.control_page[ 4106 CTL_PAGE_CHANGEABLE], &control_page_changeable, 4107 sizeof(control_page_changeable)); 4108 memcpy(&lun->mode_pages.control_page[CTL_PAGE_SAVED], 4109 &control_page_default, 4110 sizeof(control_page_default)); 4111 control_page = &lun->mode_pages.control_page[ 4112 CTL_PAGE_SAVED]; 4113 value = ctl_get_opt(&lun->be_lun->options, "reordering"); 4114 if (value != NULL && strcmp(value, "unrestricted") == 0) { 4115 control_page->queue_flags &= ~SCP_QUEUE_ALG_MASK; 4116 control_page->queue_flags |= SCP_QUEUE_ALG_UNRESTRICTED; 4117 } 4118 memcpy(&lun->mode_pages.control_page[CTL_PAGE_CURRENT], 4119 &lun->mode_pages.control_page[CTL_PAGE_SAVED], 4120 sizeof(control_page_default)); 4121 page_index->page_data = 4122 (uint8_t *)lun->mode_pages.control_page; 4123 break; 4124 4125 } 4126 case SMS_INFO_EXCEPTIONS_PAGE: { 4127 switch (page_index->subpage) { 4128 case SMS_SUBPAGE_PAGE_0: 4129 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_CURRENT], 4130 &ie_page_default, 4131 sizeof(ie_page_default)); 4132 memcpy(&lun->mode_pages.ie_page[ 4133 CTL_PAGE_CHANGEABLE], &ie_page_changeable, 4134 sizeof(ie_page_changeable)); 4135 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_DEFAULT], 4136 &ie_page_default, 4137 sizeof(ie_page_default)); 4138 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_SAVED], 4139 &ie_page_default, 4140 sizeof(ie_page_default)); 4141 page_index->page_data = 4142 (uint8_t *)lun->mode_pages.ie_page; 4143 break; 4144 case 0x02: { 4145 struct ctl_logical_block_provisioning_page *page; 4146 4147 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_DEFAULT], 4148 &lbp_page_default, 4149 sizeof(lbp_page_default)); 4150 memcpy(&lun->mode_pages.lbp_page[ 4151 CTL_PAGE_CHANGEABLE], &lbp_page_changeable, 4152 sizeof(lbp_page_changeable)); 4153 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4154 &lbp_page_default, 4155 sizeof(lbp_page_default)); 4156 page = &lun->mode_pages.lbp_page[CTL_PAGE_SAVED]; 4157 value = ctl_get_opt(&lun->be_lun->options, 4158 "avail-threshold"); 4159 if (value != NULL && 4160 ctl_expand_number(value, &ival) == 0) { 4161 page->descr[0].flags |= SLBPPD_ENABLED | 4162 SLBPPD_ARMING_DEC; 4163 if (lun->be_lun->blocksize) 4164 ival /= lun->be_lun->blocksize; 4165 else 4166 ival /= 512; 4167 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4168 page->descr[0].count); 4169 } 4170 value = ctl_get_opt(&lun->be_lun->options, 4171 "used-threshold"); 4172 if (value != NULL && 4173 ctl_expand_number(value, &ival) == 0) { 4174 page->descr[1].flags |= SLBPPD_ENABLED | 4175 SLBPPD_ARMING_INC; 4176 if (lun->be_lun->blocksize) 4177 ival /= lun->be_lun->blocksize; 4178 else 4179 ival /= 512; 4180 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4181 page->descr[1].count); 4182 } 4183 value = ctl_get_opt(&lun->be_lun->options, 4184 "pool-avail-threshold"); 4185 if (value != NULL && 4186 ctl_expand_number(value, &ival) == 0) { 4187 page->descr[2].flags |= SLBPPD_ENABLED | 4188 SLBPPD_ARMING_DEC; 4189 if (lun->be_lun->blocksize) 4190 ival /= lun->be_lun->blocksize; 4191 else 4192 ival /= 512; 4193 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4194 page->descr[2].count); 4195 } 4196 value = ctl_get_opt(&lun->be_lun->options, 4197 "pool-used-threshold"); 4198 if (value != NULL && 4199 ctl_expand_number(value, &ival) == 0) { 4200 page->descr[3].flags |= SLBPPD_ENABLED | 4201 SLBPPD_ARMING_INC; 4202 if (lun->be_lun->blocksize) 4203 ival /= lun->be_lun->blocksize; 4204 else 4205 ival /= 512; 4206 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4207 page->descr[3].count); 4208 } 4209 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_CURRENT], 4210 &lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4211 sizeof(lbp_page_default)); 4212 page_index->page_data = 4213 (uint8_t *)lun->mode_pages.lbp_page; 4214 }} 4215 break; 4216 } 4217 case SMS_VENDOR_SPECIFIC_PAGE:{ 4218 switch (page_index->subpage) { 4219 case DBGCNF_SUBPAGE_CODE: { 4220 struct copan_debugconf_subpage *current_page, 4221 *saved_page; 4222 4223 memcpy(&lun->mode_pages.debugconf_subpage[ 4224 CTL_PAGE_CURRENT], 4225 &debugconf_page_default, 4226 sizeof(debugconf_page_default)); 4227 memcpy(&lun->mode_pages.debugconf_subpage[ 4228 CTL_PAGE_CHANGEABLE], 4229 &debugconf_page_changeable, 4230 sizeof(debugconf_page_changeable)); 4231 memcpy(&lun->mode_pages.debugconf_subpage[ 4232 CTL_PAGE_DEFAULT], 4233 &debugconf_page_default, 4234 sizeof(debugconf_page_default)); 4235 memcpy(&lun->mode_pages.debugconf_subpage[ 4236 CTL_PAGE_SAVED], 4237 &debugconf_page_default, 4238 sizeof(debugconf_page_default)); 4239 page_index->page_data = 4240 (uint8_t *)lun->mode_pages.debugconf_subpage; 4241 4242 current_page = (struct copan_debugconf_subpage *) 4243 (page_index->page_data + 4244 (page_index->page_len * 4245 CTL_PAGE_CURRENT)); 4246 saved_page = (struct copan_debugconf_subpage *) 4247 (page_index->page_data + 4248 (page_index->page_len * 4249 CTL_PAGE_SAVED)); 4250 break; 4251 } 4252 default: 4253 panic("invalid subpage value %d", 4254 page_index->subpage); 4255 break; 4256 } 4257 break; 4258 } 4259 default: 4260 panic("invalid page value %d", 4261 page_index->page_code & SMPH_PC_MASK); 4262 break; 4263 } 4264 } 4265 4266 return (CTL_RETVAL_COMPLETE); 4267} 4268 4269static int 4270ctl_init_log_page_index(struct ctl_lun *lun) 4271{ 4272 struct ctl_page_index *page_index; 4273 int i, j, k, prev; 4274 4275 memcpy(&lun->log_pages.index, log_page_index_template, 4276 sizeof(log_page_index_template)); 4277 4278 prev = -1; 4279 for (i = 0, j = 0, k = 0; i < CTL_NUM_LOG_PAGES; i++) { 4280 4281 page_index = &lun->log_pages.index[i]; 4282 /* 4283 * If this is a disk-only mode page, there's no point in 4284 * setting it up. For some pages, we have to have some 4285 * basic information about the disk in order to calculate the 4286 * mode page data. 4287 */ 4288 if ((lun->be_lun->lun_type != T_DIRECT) 4289 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 4290 continue; 4291 4292 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING && 4293 ((lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) == 0 || 4294 lun->backend->lun_attr == NULL)) 4295 continue; 4296 4297 if (page_index->page_code != prev) { 4298 lun->log_pages.pages_page[j] = page_index->page_code; 4299 prev = page_index->page_code; 4300 j++; 4301 } 4302 lun->log_pages.subpages_page[k*2] = page_index->page_code; 4303 lun->log_pages.subpages_page[k*2+1] = page_index->subpage; 4304 k++; 4305 } 4306 lun->log_pages.index[0].page_data = &lun->log_pages.pages_page[0]; 4307 lun->log_pages.index[0].page_len = j; 4308 lun->log_pages.index[1].page_data = &lun->log_pages.subpages_page[0]; 4309 lun->log_pages.index[1].page_len = k * 2; 4310 lun->log_pages.index[2].page_data = &lun->log_pages.lbp_page[0]; 4311 lun->log_pages.index[2].page_len = 12*CTL_NUM_LBP_PARAMS; 4312 4313 return (CTL_RETVAL_COMPLETE); 4314} 4315 4316static int 4317hex2bin(const char *str, uint8_t *buf, int buf_size) 4318{ 4319 int i; 4320 u_char c; 4321 4322 memset(buf, 0, buf_size); 4323 while (isspace(str[0])) 4324 str++; 4325 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) 4326 str += 2; 4327 buf_size *= 2; 4328 for (i = 0; str[i] != 0 && i < buf_size; i++) { 4329 c = str[i]; 4330 if (isdigit(c)) 4331 c -= '0'; 4332 else if (isalpha(c)) 4333 c -= isupper(c) ? 'A' - 10 : 'a' - 10; 4334 else 4335 break; 4336 if (c >= 16) 4337 break; 4338 if ((i & 1) == 0) 4339 buf[i / 2] |= (c << 4); 4340 else 4341 buf[i / 2] |= c; 4342 } 4343 return ((i + 1) / 2); 4344} 4345 4346/* 4347 * LUN allocation. 4348 * 4349 * Requirements: 4350 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4351 * wants us to allocate the LUN and he can block. 4352 * - ctl_softc is always set 4353 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4354 * 4355 * Returns 0 for success, non-zero (errno) for failure. 4356 */ 4357static int 4358ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4359 struct ctl_be_lun *const be_lun, struct ctl_id target_id) 4360{ 4361 struct ctl_lun *nlun, *lun; 4362 struct ctl_port *port; 4363 struct scsi_vpd_id_descriptor *desc; 4364 struct scsi_vpd_id_t10 *t10id; 4365 const char *eui, *naa, *scsiname, *vendor, *value; 4366 int lun_number, i, lun_malloced; 4367 int devidlen, idlen1, idlen2 = 0, len; 4368 4369 if (be_lun == NULL) 4370 return (EINVAL); 4371 4372 /* 4373 * We currently only support Direct Access or Processor LUN types. 4374 */ 4375 switch (be_lun->lun_type) { 4376 case T_DIRECT: 4377 break; 4378 case T_PROCESSOR: 4379 break; 4380 case T_SEQUENTIAL: 4381 case T_CHANGER: 4382 default: 4383 be_lun->lun_config_status(be_lun->be_lun, 4384 CTL_LUN_CONFIG_FAILURE); 4385 break; 4386 } 4387 if (ctl_lun == NULL) { 4388 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4389 lun_malloced = 1; 4390 } else { 4391 lun_malloced = 0; 4392 lun = ctl_lun; 4393 } 4394 4395 memset(lun, 0, sizeof(*lun)); 4396 if (lun_malloced) 4397 lun->flags = CTL_LUN_MALLOCED; 4398 4399 /* Generate LUN ID. */ 4400 devidlen = max(CTL_DEVID_MIN_LEN, 4401 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4402 idlen1 = sizeof(*t10id) + devidlen; 4403 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4404 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4405 if (scsiname != NULL) { 4406 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4407 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4408 } 4409 eui = ctl_get_opt(&be_lun->options, "eui"); 4410 if (eui != NULL) { 4411 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4412 } 4413 naa = ctl_get_opt(&be_lun->options, "naa"); 4414 if (naa != NULL) { 4415 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4416 } 4417 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4418 M_CTL, M_WAITOK | M_ZERO); 4419 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4420 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4421 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4422 desc->length = idlen1; 4423 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4424 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4425 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4426 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4427 } else { 4428 strncpy(t10id->vendor, vendor, 4429 min(sizeof(t10id->vendor), strlen(vendor))); 4430 } 4431 strncpy((char *)t10id->vendor_spec_id, 4432 (char *)be_lun->device_id, devidlen); 4433 if (scsiname != NULL) { 4434 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4435 desc->length); 4436 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4437 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4438 SVPD_ID_TYPE_SCSI_NAME; 4439 desc->length = idlen2; 4440 strlcpy(desc->identifier, scsiname, idlen2); 4441 } 4442 if (eui != NULL) { 4443 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4444 desc->length); 4445 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4446 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4447 SVPD_ID_TYPE_EUI64; 4448 desc->length = hex2bin(eui, desc->identifier, 16); 4449 desc->length = desc->length > 12 ? 16 : 4450 (desc->length > 8 ? 12 : 8); 4451 len -= 16 - desc->length; 4452 } 4453 if (naa != NULL) { 4454 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4455 desc->length); 4456 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4457 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4458 SVPD_ID_TYPE_NAA; 4459 desc->length = hex2bin(naa, desc->identifier, 16); 4460 desc->length = desc->length > 8 ? 16 : 8; 4461 len -= 16 - desc->length; 4462 } 4463 lun->lun_devid->len = len; 4464 4465 mtx_lock(&ctl_softc->ctl_lock); 4466 /* 4467 * See if the caller requested a particular LUN number. If so, see 4468 * if it is available. Otherwise, allocate the first available LUN. 4469 */ 4470 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4471 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4472 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4473 mtx_unlock(&ctl_softc->ctl_lock); 4474 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4475 printf("ctl: requested LUN ID %d is higher " 4476 "than CTL_MAX_LUNS - 1 (%d)\n", 4477 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4478 } else { 4479 /* 4480 * XXX KDM return an error, or just assign 4481 * another LUN ID in this case?? 4482 */ 4483 printf("ctl: requested LUN ID %d is already " 4484 "in use\n", be_lun->req_lun_id); 4485 } 4486 if (lun->flags & CTL_LUN_MALLOCED) 4487 free(lun, M_CTL); 4488 be_lun->lun_config_status(be_lun->be_lun, 4489 CTL_LUN_CONFIG_FAILURE); 4490 return (ENOSPC); 4491 } 4492 lun_number = be_lun->req_lun_id; 4493 } else { 4494 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, CTL_MAX_LUNS); 4495 if (lun_number == -1) { 4496 mtx_unlock(&ctl_softc->ctl_lock); 4497 printf("ctl: can't allocate LUN on target %ju, out of " 4498 "LUNs\n", (uintmax_t)target_id.id); 4499 if (lun->flags & CTL_LUN_MALLOCED) 4500 free(lun, M_CTL); 4501 be_lun->lun_config_status(be_lun->be_lun, 4502 CTL_LUN_CONFIG_FAILURE); 4503 return (ENOSPC); 4504 } 4505 } 4506 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4507 4508 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4509 lun->target = target_id; 4510 lun->lun = lun_number; 4511 lun->be_lun = be_lun; 4512 /* 4513 * The processor LUN is always enabled. Disk LUNs come on line 4514 * disabled, and must be enabled by the backend. 4515 */ 4516 lun->flags |= CTL_LUN_DISABLED; 4517 lun->backend = be_lun->be; 4518 be_lun->ctl_lun = lun; 4519 be_lun->lun_id = lun_number; 4520 atomic_add_int(&be_lun->be->num_luns, 1); 4521 if (be_lun->flags & CTL_LUN_FLAG_OFFLINE) 4522 lun->flags |= CTL_LUN_OFFLINE; 4523 4524 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4525 lun->flags |= CTL_LUN_STOPPED; 4526 4527 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4528 lun->flags |= CTL_LUN_INOPERABLE; 4529 4530 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4531 lun->flags |= CTL_LUN_PRIMARY_SC; 4532 4533 value = ctl_get_opt(&be_lun->options, "readonly"); 4534 if (value != NULL && strcmp(value, "on") == 0) 4535 lun->flags |= CTL_LUN_READONLY; 4536 4537 lun->ctl_softc = ctl_softc; 4538 TAILQ_INIT(&lun->ooa_queue); 4539 TAILQ_INIT(&lun->blocked_queue); 4540 STAILQ_INIT(&lun->error_list); 4541 ctl_tpc_lun_init(lun); 4542 4543 /* 4544 * Initialize the mode and log page index. 4545 */ 4546 ctl_init_page_index(lun); 4547 ctl_init_log_page_index(lun); 4548 4549 /* 4550 * Set the poweron UA for all initiators on this LUN only. 4551 */ 4552 for (i = 0; i < CTL_MAX_INITIATORS; i++) 4553 lun->pending_ua[i] = CTL_UA_POWERON; 4554 4555 /* 4556 * Now, before we insert this lun on the lun list, set the lun 4557 * inventory changed UA for all other luns. 4558 */ 4559 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4560 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4561 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4562 } 4563 } 4564 4565 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4566 4567 ctl_softc->ctl_luns[lun_number] = lun; 4568 4569 ctl_softc->num_luns++; 4570 4571 /* Setup statistics gathering */ 4572 lun->stats.device_type = be_lun->lun_type; 4573 lun->stats.lun_number = lun_number; 4574 if (lun->stats.device_type == T_DIRECT) 4575 lun->stats.blocksize = be_lun->blocksize; 4576 else 4577 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4578 for (i = 0;i < CTL_MAX_PORTS;i++) 4579 lun->stats.ports[i].targ_port = i; 4580 4581 mtx_unlock(&ctl_softc->ctl_lock); 4582 4583 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4584 4585 /* 4586 * Run through each registered FETD and bring it online if it isn't 4587 * already. Enable the target ID if it hasn't been enabled, and 4588 * enable this particular LUN. 4589 */ 4590 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4591 int retval; 4592 4593 retval = port->lun_enable(port->targ_lun_arg, target_id,lun_number); 4594 if (retval != 0) { 4595 printf("ctl_alloc_lun: FETD %s port %d returned error " 4596 "%d for lun_enable on target %ju lun %d\n", 4597 port->port_name, port->targ_port, retval, 4598 (uintmax_t)target_id.id, lun_number); 4599 } else 4600 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4601 } 4602 return (0); 4603} 4604 4605/* 4606 * Delete a LUN. 4607 * Assumptions: 4608 * - LUN has already been marked invalid and any pending I/O has been taken 4609 * care of. 4610 */ 4611static int 4612ctl_free_lun(struct ctl_lun *lun) 4613{ 4614 struct ctl_softc *softc; 4615#if 0 4616 struct ctl_port *port; 4617#endif 4618 struct ctl_lun *nlun; 4619 int i; 4620 4621 softc = lun->ctl_softc; 4622 4623 mtx_assert(&softc->ctl_lock, MA_OWNED); 4624 4625 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4626 4627 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4628 4629 softc->ctl_luns[lun->lun] = NULL; 4630 4631 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4632 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4633 4634 softc->num_luns--; 4635 4636 /* 4637 * XXX KDM this scheme only works for a single target/multiple LUN 4638 * setup. It needs to be revamped for a multiple target scheme. 4639 * 4640 * XXX KDM this results in port->lun_disable() getting called twice, 4641 * once when ctl_disable_lun() is called, and a second time here. 4642 * We really need to re-think the LUN disable semantics. There 4643 * should probably be several steps/levels to LUN removal: 4644 * - disable 4645 * - invalidate 4646 * - free 4647 * 4648 * Right now we only have a disable method when communicating to 4649 * the front end ports, at least for individual LUNs. 4650 */ 4651#if 0 4652 STAILQ_FOREACH(port, &softc->port_list, links) { 4653 int retval; 4654 4655 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4656 lun->lun); 4657 if (retval != 0) { 4658 printf("ctl_free_lun: FETD %s port %d returned error " 4659 "%d for lun_disable on target %ju lun %jd\n", 4660 port->port_name, port->targ_port, retval, 4661 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4662 } 4663 4664 if (STAILQ_FIRST(&softc->lun_list) == NULL) { 4665 port->status &= ~CTL_PORT_STATUS_LUN_ONLINE; 4666 4667 retval = port->targ_disable(port->targ_lun_arg,lun->target); 4668 if (retval != 0) { 4669 printf("ctl_free_lun: FETD %s port %d " 4670 "returned error %d for targ_disable on " 4671 "target %ju\n", port->port_name, 4672 port->targ_port, retval, 4673 (uintmax_t)lun->target.id); 4674 } else 4675 port->status &= ~CTL_PORT_STATUS_TARG_ONLINE; 4676 4677 if ((port->status & CTL_PORT_STATUS_TARG_ONLINE) != 0) 4678 continue; 4679 4680#if 0 4681 port->port_offline(port->onoff_arg); 4682 port->status &= ~CTL_PORT_STATUS_ONLINE; 4683#endif 4684 } 4685 } 4686#endif 4687 4688 /* 4689 * Tell the backend to free resources, if this LUN has a backend. 4690 */ 4691 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4692 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4693 4694 ctl_tpc_lun_shutdown(lun); 4695 mtx_destroy(&lun->lun_lock); 4696 free(lun->lun_devid, M_CTL); 4697 for (i = 0; i < 2 * CTL_MAX_PORTS; i++) { 4698 if (lun->pr_keys[i] != NULL) 4699 free(lun->pr_keys[i], M_CTL); 4700 } 4701 free(lun->write_buffer, M_CTL); 4702 if (lun->flags & CTL_LUN_MALLOCED) 4703 free(lun, M_CTL); 4704 4705 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4706 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4707 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4708 } 4709 } 4710 4711 return (0); 4712} 4713 4714static void 4715ctl_create_lun(struct ctl_be_lun *be_lun) 4716{ 4717 struct ctl_softc *ctl_softc; 4718 4719 ctl_softc = control_softc; 4720 4721 /* 4722 * ctl_alloc_lun() should handle all potential failure cases. 4723 */ 4724 ctl_alloc_lun(ctl_softc, NULL, be_lun, ctl_softc->target); 4725} 4726 4727int 4728ctl_add_lun(struct ctl_be_lun *be_lun) 4729{ 4730 struct ctl_softc *ctl_softc = control_softc; 4731 4732 mtx_lock(&ctl_softc->ctl_lock); 4733 STAILQ_INSERT_TAIL(&ctl_softc->pending_lun_queue, be_lun, links); 4734 mtx_unlock(&ctl_softc->ctl_lock); 4735 wakeup(&ctl_softc->pending_lun_queue); 4736 4737 return (0); 4738} 4739 4740int 4741ctl_enable_lun(struct ctl_be_lun *be_lun) 4742{ 4743 struct ctl_softc *ctl_softc; 4744 struct ctl_port *port, *nport; 4745 struct ctl_lun *lun; 4746 int retval; 4747 4748 ctl_softc = control_softc; 4749 4750 lun = (struct ctl_lun *)be_lun->ctl_lun; 4751 4752 mtx_lock(&ctl_softc->ctl_lock); 4753 mtx_lock(&lun->lun_lock); 4754 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4755 /* 4756 * eh? Why did we get called if the LUN is already 4757 * enabled? 4758 */ 4759 mtx_unlock(&lun->lun_lock); 4760 mtx_unlock(&ctl_softc->ctl_lock); 4761 return (0); 4762 } 4763 lun->flags &= ~CTL_LUN_DISABLED; 4764 mtx_unlock(&lun->lun_lock); 4765 4766 for (port = STAILQ_FIRST(&ctl_softc->port_list); port != NULL; port = nport) { 4767 nport = STAILQ_NEXT(port, links); 4768 4769 /* 4770 * Drop the lock while we call the FETD's enable routine. 4771 * This can lead to a callback into CTL (at least in the 4772 * case of the internal initiator frontend. 4773 */ 4774 mtx_unlock(&ctl_softc->ctl_lock); 4775 retval = port->lun_enable(port->targ_lun_arg, lun->target,lun->lun); 4776 mtx_lock(&ctl_softc->ctl_lock); 4777 if (retval != 0) { 4778 printf("%s: FETD %s port %d returned error " 4779 "%d for lun_enable on target %ju lun %jd\n", 4780 __func__, port->port_name, port->targ_port, retval, 4781 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4782 } 4783#if 0 4784 else { 4785 /* NOTE: TODO: why does lun enable affect port status? */ 4786 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4787 } 4788#endif 4789 } 4790 4791 mtx_unlock(&ctl_softc->ctl_lock); 4792 4793 return (0); 4794} 4795 4796int 4797ctl_disable_lun(struct ctl_be_lun *be_lun) 4798{ 4799 struct ctl_softc *ctl_softc; 4800 struct ctl_port *port; 4801 struct ctl_lun *lun; 4802 int retval; 4803 4804 ctl_softc = control_softc; 4805 4806 lun = (struct ctl_lun *)be_lun->ctl_lun; 4807 4808 mtx_lock(&ctl_softc->ctl_lock); 4809 mtx_lock(&lun->lun_lock); 4810 if (lun->flags & CTL_LUN_DISABLED) { 4811 mtx_unlock(&lun->lun_lock); 4812 mtx_unlock(&ctl_softc->ctl_lock); 4813 return (0); 4814 } 4815 lun->flags |= CTL_LUN_DISABLED; 4816 mtx_unlock(&lun->lun_lock); 4817 4818 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4819 mtx_unlock(&ctl_softc->ctl_lock); 4820 /* 4821 * Drop the lock before we call the frontend's disable 4822 * routine, to avoid lock order reversals. 4823 * 4824 * XXX KDM what happens if the frontend list changes while 4825 * we're traversing it? It's unlikely, but should be handled. 4826 */ 4827 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4828 lun->lun); 4829 mtx_lock(&ctl_softc->ctl_lock); 4830 if (retval != 0) { 4831 printf("ctl_alloc_lun: FETD %s port %d returned error " 4832 "%d for lun_disable on target %ju lun %jd\n", 4833 port->port_name, port->targ_port, retval, 4834 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4835 } 4836 } 4837 4838 mtx_unlock(&ctl_softc->ctl_lock); 4839 4840 return (0); 4841} 4842 4843int 4844ctl_start_lun(struct ctl_be_lun *be_lun) 4845{ 4846 struct ctl_softc *ctl_softc; 4847 struct ctl_lun *lun; 4848 4849 ctl_softc = control_softc; 4850 4851 lun = (struct ctl_lun *)be_lun->ctl_lun; 4852 4853 mtx_lock(&lun->lun_lock); 4854 lun->flags &= ~CTL_LUN_STOPPED; 4855 mtx_unlock(&lun->lun_lock); 4856 4857 return (0); 4858} 4859 4860int 4861ctl_stop_lun(struct ctl_be_lun *be_lun) 4862{ 4863 struct ctl_softc *ctl_softc; 4864 struct ctl_lun *lun; 4865 4866 ctl_softc = control_softc; 4867 4868 lun = (struct ctl_lun *)be_lun->ctl_lun; 4869 4870 mtx_lock(&lun->lun_lock); 4871 lun->flags |= CTL_LUN_STOPPED; 4872 mtx_unlock(&lun->lun_lock); 4873 4874 return (0); 4875} 4876 4877int 4878ctl_lun_offline(struct ctl_be_lun *be_lun) 4879{ 4880 struct ctl_softc *ctl_softc; 4881 struct ctl_lun *lun; 4882 4883 ctl_softc = control_softc; 4884 4885 lun = (struct ctl_lun *)be_lun->ctl_lun; 4886 4887 mtx_lock(&lun->lun_lock); 4888 lun->flags |= CTL_LUN_OFFLINE; 4889 mtx_unlock(&lun->lun_lock); 4890 4891 return (0); 4892} 4893 4894int 4895ctl_lun_online(struct ctl_be_lun *be_lun) 4896{ 4897 struct ctl_softc *ctl_softc; 4898 struct ctl_lun *lun; 4899 4900 ctl_softc = control_softc; 4901 4902 lun = (struct ctl_lun *)be_lun->ctl_lun; 4903 4904 mtx_lock(&lun->lun_lock); 4905 lun->flags &= ~CTL_LUN_OFFLINE; 4906 mtx_unlock(&lun->lun_lock); 4907 4908 return (0); 4909} 4910 4911int 4912ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4913{ 4914 struct ctl_softc *ctl_softc; 4915 struct ctl_lun *lun; 4916 4917 ctl_softc = control_softc; 4918 4919 lun = (struct ctl_lun *)be_lun->ctl_lun; 4920 4921 mtx_lock(&lun->lun_lock); 4922 4923 /* 4924 * The LUN needs to be disabled before it can be marked invalid. 4925 */ 4926 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4927 mtx_unlock(&lun->lun_lock); 4928 return (-1); 4929 } 4930 /* 4931 * Mark the LUN invalid. 4932 */ 4933 lun->flags |= CTL_LUN_INVALID; 4934 4935 /* 4936 * If there is nothing in the OOA queue, go ahead and free the LUN. 4937 * If we have something in the OOA queue, we'll free it when the 4938 * last I/O completes. 4939 */ 4940 if (TAILQ_EMPTY(&lun->ooa_queue)) { 4941 mtx_unlock(&lun->lun_lock); 4942 mtx_lock(&ctl_softc->ctl_lock); 4943 ctl_free_lun(lun); 4944 mtx_unlock(&ctl_softc->ctl_lock); 4945 } else 4946 mtx_unlock(&lun->lun_lock); 4947 4948 return (0); 4949} 4950 4951int 4952ctl_lun_inoperable(struct ctl_be_lun *be_lun) 4953{ 4954 struct ctl_softc *ctl_softc; 4955 struct ctl_lun *lun; 4956 4957 ctl_softc = control_softc; 4958 lun = (struct ctl_lun *)be_lun->ctl_lun; 4959 4960 mtx_lock(&lun->lun_lock); 4961 lun->flags |= CTL_LUN_INOPERABLE; 4962 mtx_unlock(&lun->lun_lock); 4963 4964 return (0); 4965} 4966 4967int 4968ctl_lun_operable(struct ctl_be_lun *be_lun) 4969{ 4970 struct ctl_softc *ctl_softc; 4971 struct ctl_lun *lun; 4972 4973 ctl_softc = control_softc; 4974 lun = (struct ctl_lun *)be_lun->ctl_lun; 4975 4976 mtx_lock(&lun->lun_lock); 4977 lun->flags &= ~CTL_LUN_INOPERABLE; 4978 mtx_unlock(&lun->lun_lock); 4979 4980 return (0); 4981} 4982 4983void 4984ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 4985{ 4986 struct ctl_lun *lun; 4987 struct ctl_softc *softc; 4988 int i; 4989 4990 softc = control_softc; 4991 4992 lun = (struct ctl_lun *)be_lun->ctl_lun; 4993 4994 mtx_lock(&lun->lun_lock); 4995 4996 for (i = 0; i < CTL_MAX_INITIATORS; i++) 4997 lun->pending_ua[i] |= CTL_UA_CAPACITY_CHANGED; 4998 4999 mtx_unlock(&lun->lun_lock); 5000} 5001 5002/* 5003 * Backend "memory move is complete" callback for requests that never 5004 * make it down to say RAIDCore's configuration code. 5005 */ 5006int 5007ctl_config_move_done(union ctl_io *io) 5008{ 5009 int retval; 5010 5011 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 5012 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI, 5013 ("Config I/O type isn't CTL_IO_SCSI (%d)!", io->io_hdr.io_type)); 5014 5015 if ((io->io_hdr.port_status != 0) && 5016 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5017 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5018 /* 5019 * For hardware error sense keys, the sense key 5020 * specific value is defined to be a retry count, 5021 * but we use it to pass back an internal FETD 5022 * error code. XXX KDM Hopefully the FETD is only 5023 * using 16 bits for an error code, since that's 5024 * all the space we have in the sks field. 5025 */ 5026 ctl_set_internal_failure(&io->scsiio, 5027 /*sks_valid*/ 1, 5028 /*retry_count*/ 5029 io->io_hdr.port_status); 5030 } 5031 5032 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) || 5033 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5034 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) || 5035 ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5036 /* 5037 * XXX KDM just assuming a single pointer here, and not a 5038 * S/G list. If we start using S/G lists for config data, 5039 * we'll need to know how to clean them up here as well. 5040 */ 5041 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5042 free(io->scsiio.kern_data_ptr, M_CTL); 5043 ctl_done(io); 5044 retval = CTL_RETVAL_COMPLETE; 5045 } else { 5046 /* 5047 * XXX KDM now we need to continue data movement. Some 5048 * options: 5049 * - call ctl_scsiio() again? We don't do this for data 5050 * writes, because for those at least we know ahead of 5051 * time where the write will go and how long it is. For 5052 * config writes, though, that information is largely 5053 * contained within the write itself, thus we need to 5054 * parse out the data again. 5055 * 5056 * - Call some other function once the data is in? 5057 */ 5058 if (ctl_debug & CTL_DEBUG_CDB_DATA) 5059 ctl_data_print(io); 5060 5061 /* 5062 * XXX KDM call ctl_scsiio() again for now, and check flag 5063 * bits to see whether we're allocated or not. 5064 */ 5065 retval = ctl_scsiio(&io->scsiio); 5066 } 5067 return (retval); 5068} 5069 5070/* 5071 * This gets called by a backend driver when it is done with a 5072 * data_submit method. 5073 */ 5074void 5075ctl_data_submit_done(union ctl_io *io) 5076{ 5077 /* 5078 * If the IO_CONT flag is set, we need to call the supplied 5079 * function to continue processing the I/O, instead of completing 5080 * the I/O just yet. 5081 * 5082 * If there is an error, though, we don't want to keep processing. 5083 * Instead, just send status back to the initiator. 5084 */ 5085 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5086 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5087 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5088 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5089 io->scsiio.io_cont(io); 5090 return; 5091 } 5092 ctl_done(io); 5093} 5094 5095/* 5096 * This gets called by a backend driver when it is done with a 5097 * configuration write. 5098 */ 5099void 5100ctl_config_write_done(union ctl_io *io) 5101{ 5102 uint8_t *buf; 5103 5104 /* 5105 * If the IO_CONT flag is set, we need to call the supplied 5106 * function to continue processing the I/O, instead of completing 5107 * the I/O just yet. 5108 * 5109 * If there is an error, though, we don't want to keep processing. 5110 * Instead, just send status back to the initiator. 5111 */ 5112 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5113 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5114 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5115 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5116 io->scsiio.io_cont(io); 5117 return; 5118 } 5119 /* 5120 * Since a configuration write can be done for commands that actually 5121 * have data allocated, like write buffer, and commands that have 5122 * no data, like start/stop unit, we need to check here. 5123 */ 5124 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5125 buf = io->scsiio.kern_data_ptr; 5126 else 5127 buf = NULL; 5128 ctl_done(io); 5129 if (buf) 5130 free(buf, M_CTL); 5131} 5132 5133/* 5134 * SCSI release command. 5135 */ 5136int 5137ctl_scsi_release(struct ctl_scsiio *ctsio) 5138{ 5139 int length, longid, thirdparty_id, resv_id; 5140 struct ctl_softc *ctl_softc; 5141 struct ctl_lun *lun; 5142 uint32_t residx; 5143 5144 length = 0; 5145 resv_id = 0; 5146 5147 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5148 5149 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5150 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5151 ctl_softc = control_softc; 5152 5153 switch (ctsio->cdb[0]) { 5154 case RELEASE_10: { 5155 struct scsi_release_10 *cdb; 5156 5157 cdb = (struct scsi_release_10 *)ctsio->cdb; 5158 5159 if (cdb->byte2 & SR10_LONGID) 5160 longid = 1; 5161 else 5162 thirdparty_id = cdb->thirdparty_id; 5163 5164 resv_id = cdb->resv_id; 5165 length = scsi_2btoul(cdb->length); 5166 break; 5167 } 5168 } 5169 5170 5171 /* 5172 * XXX KDM right now, we only support LUN reservation. We don't 5173 * support 3rd party reservations, or extent reservations, which 5174 * might actually need the parameter list. If we've gotten this 5175 * far, we've got a LUN reservation. Anything else got kicked out 5176 * above. So, according to SPC, ignore the length. 5177 */ 5178 length = 0; 5179 5180 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5181 && (length > 0)) { 5182 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5183 ctsio->kern_data_len = length; 5184 ctsio->kern_total_len = length; 5185 ctsio->kern_data_resid = 0; 5186 ctsio->kern_rel_offset = 0; 5187 ctsio->kern_sg_entries = 0; 5188 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5189 ctsio->be_move_done = ctl_config_move_done; 5190 ctl_datamove((union ctl_io *)ctsio); 5191 5192 return (CTL_RETVAL_COMPLETE); 5193 } 5194 5195 if (length > 0) 5196 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5197 5198 mtx_lock(&lun->lun_lock); 5199 5200 /* 5201 * According to SPC, it is not an error for an intiator to attempt 5202 * to release a reservation on a LUN that isn't reserved, or that 5203 * is reserved by another initiator. The reservation can only be 5204 * released, though, by the initiator who made it or by one of 5205 * several reset type events. 5206 */ 5207 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5208 lun->flags &= ~CTL_LUN_RESERVED; 5209 5210 mtx_unlock(&lun->lun_lock); 5211 5212 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5213 free(ctsio->kern_data_ptr, M_CTL); 5214 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5215 } 5216 5217 ctl_set_success(ctsio); 5218 ctl_done((union ctl_io *)ctsio); 5219 return (CTL_RETVAL_COMPLETE); 5220} 5221 5222int 5223ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5224{ 5225 int extent, thirdparty, longid; 5226 int resv_id, length; 5227 uint64_t thirdparty_id; 5228 struct ctl_softc *ctl_softc; 5229 struct ctl_lun *lun; 5230 uint32_t residx; 5231 5232 extent = 0; 5233 thirdparty = 0; 5234 longid = 0; 5235 resv_id = 0; 5236 length = 0; 5237 thirdparty_id = 0; 5238 5239 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5240 5241 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5242 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5243 ctl_softc = control_softc; 5244 5245 switch (ctsio->cdb[0]) { 5246 case RESERVE_10: { 5247 struct scsi_reserve_10 *cdb; 5248 5249 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 5250 5251 if (cdb->byte2 & SR10_LONGID) 5252 longid = 1; 5253 else 5254 thirdparty_id = cdb->thirdparty_id; 5255 5256 resv_id = cdb->resv_id; 5257 length = scsi_2btoul(cdb->length); 5258 break; 5259 } 5260 } 5261 5262 /* 5263 * XXX KDM right now, we only support LUN reservation. We don't 5264 * support 3rd party reservations, or extent reservations, which 5265 * might actually need the parameter list. If we've gotten this 5266 * far, we've got a LUN reservation. Anything else got kicked out 5267 * above. So, according to SPC, ignore the length. 5268 */ 5269 length = 0; 5270 5271 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5272 && (length > 0)) { 5273 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5274 ctsio->kern_data_len = length; 5275 ctsio->kern_total_len = length; 5276 ctsio->kern_data_resid = 0; 5277 ctsio->kern_rel_offset = 0; 5278 ctsio->kern_sg_entries = 0; 5279 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5280 ctsio->be_move_done = ctl_config_move_done; 5281 ctl_datamove((union ctl_io *)ctsio); 5282 5283 return (CTL_RETVAL_COMPLETE); 5284 } 5285 5286 if (length > 0) 5287 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5288 5289 mtx_lock(&lun->lun_lock); 5290 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5291 ctl_set_reservation_conflict(ctsio); 5292 goto bailout; 5293 } 5294 5295 lun->flags |= CTL_LUN_RESERVED; 5296 lun->res_idx = residx; 5297 5298 ctl_set_success(ctsio); 5299 5300bailout: 5301 mtx_unlock(&lun->lun_lock); 5302 5303 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5304 free(ctsio->kern_data_ptr, M_CTL); 5305 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5306 } 5307 5308 ctl_done((union ctl_io *)ctsio); 5309 return (CTL_RETVAL_COMPLETE); 5310} 5311 5312int 5313ctl_start_stop(struct ctl_scsiio *ctsio) 5314{ 5315 struct scsi_start_stop_unit *cdb; 5316 struct ctl_lun *lun; 5317 struct ctl_softc *ctl_softc; 5318 int retval; 5319 5320 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5321 5322 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5323 ctl_softc = control_softc; 5324 retval = 0; 5325 5326 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5327 5328 /* 5329 * XXX KDM 5330 * We don't support the immediate bit on a stop unit. In order to 5331 * do that, we would need to code up a way to know that a stop is 5332 * pending, and hold off any new commands until it completes, one 5333 * way or another. Then we could accept or reject those commands 5334 * depending on its status. We would almost need to do the reverse 5335 * of what we do below for an immediate start -- return the copy of 5336 * the ctl_io to the FETD with status to send to the host (and to 5337 * free the copy!) and then free the original I/O once the stop 5338 * actually completes. That way, the OOA queue mechanism can work 5339 * to block commands that shouldn't proceed. Another alternative 5340 * would be to put the copy in the queue in place of the original, 5341 * and return the original back to the caller. That could be 5342 * slightly safer.. 5343 */ 5344 if ((cdb->byte2 & SSS_IMMED) 5345 && ((cdb->how & SSS_START) == 0)) { 5346 ctl_set_invalid_field(ctsio, 5347 /*sks_valid*/ 1, 5348 /*command*/ 1, 5349 /*field*/ 1, 5350 /*bit_valid*/ 1, 5351 /*bit*/ 0); 5352 ctl_done((union ctl_io *)ctsio); 5353 return (CTL_RETVAL_COMPLETE); 5354 } 5355 5356 if ((lun->flags & CTL_LUN_PR_RESERVED) 5357 && ((cdb->how & SSS_START)==0)) { 5358 uint32_t residx; 5359 5360 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5361 if (ctl_get_prkey(lun, residx) == 0 5362 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5363 5364 ctl_set_reservation_conflict(ctsio); 5365 ctl_done((union ctl_io *)ctsio); 5366 return (CTL_RETVAL_COMPLETE); 5367 } 5368 } 5369 5370 /* 5371 * If there is no backend on this device, we can't start or stop 5372 * it. In theory we shouldn't get any start/stop commands in the 5373 * first place at this level if the LUN doesn't have a backend. 5374 * That should get stopped by the command decode code. 5375 */ 5376 if (lun->backend == NULL) { 5377 ctl_set_invalid_opcode(ctsio); 5378 ctl_done((union ctl_io *)ctsio); 5379 return (CTL_RETVAL_COMPLETE); 5380 } 5381 5382 /* 5383 * XXX KDM Copan-specific offline behavior. 5384 * Figure out a reasonable way to port this? 5385 */ 5386#ifdef NEEDTOPORT 5387 mtx_lock(&lun->lun_lock); 5388 5389 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5390 && (lun->flags & CTL_LUN_OFFLINE)) { 5391 /* 5392 * If the LUN is offline, and the on/offline bit isn't set, 5393 * reject the start or stop. Otherwise, let it through. 5394 */ 5395 mtx_unlock(&lun->lun_lock); 5396 ctl_set_lun_not_ready(ctsio); 5397 ctl_done((union ctl_io *)ctsio); 5398 } else { 5399 mtx_unlock(&lun->lun_lock); 5400#endif /* NEEDTOPORT */ 5401 /* 5402 * This could be a start or a stop when we're online, 5403 * or a stop/offline or start/online. A start or stop when 5404 * we're offline is covered in the case above. 5405 */ 5406 /* 5407 * In the non-immediate case, we send the request to 5408 * the backend and return status to the user when 5409 * it is done. 5410 * 5411 * In the immediate case, we allocate a new ctl_io 5412 * to hold a copy of the request, and send that to 5413 * the backend. We then set good status on the 5414 * user's request and return it immediately. 5415 */ 5416 if (cdb->byte2 & SSS_IMMED) { 5417 union ctl_io *new_io; 5418 5419 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5420 ctl_copy_io((union ctl_io *)ctsio, new_io); 5421 retval = lun->backend->config_write(new_io); 5422 ctl_set_success(ctsio); 5423 ctl_done((union ctl_io *)ctsio); 5424 } else { 5425 retval = lun->backend->config_write( 5426 (union ctl_io *)ctsio); 5427 } 5428#ifdef NEEDTOPORT 5429 } 5430#endif 5431 return (retval); 5432} 5433 5434/* 5435 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5436 * we don't really do anything with the LBA and length fields if the user 5437 * passes them in. Instead we'll just flush out the cache for the entire 5438 * LUN. 5439 */ 5440int 5441ctl_sync_cache(struct ctl_scsiio *ctsio) 5442{ 5443 struct ctl_lun *lun; 5444 struct ctl_softc *ctl_softc; 5445 uint64_t starting_lba; 5446 uint32_t block_count; 5447 int retval; 5448 5449 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5450 5451 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5452 ctl_softc = control_softc; 5453 retval = 0; 5454 5455 switch (ctsio->cdb[0]) { 5456 case SYNCHRONIZE_CACHE: { 5457 struct scsi_sync_cache *cdb; 5458 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5459 5460 starting_lba = scsi_4btoul(cdb->begin_lba); 5461 block_count = scsi_2btoul(cdb->lb_count); 5462 break; 5463 } 5464 case SYNCHRONIZE_CACHE_16: { 5465 struct scsi_sync_cache_16 *cdb; 5466 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5467 5468 starting_lba = scsi_8btou64(cdb->begin_lba); 5469 block_count = scsi_4btoul(cdb->lb_count); 5470 break; 5471 } 5472 default: 5473 ctl_set_invalid_opcode(ctsio); 5474 ctl_done((union ctl_io *)ctsio); 5475 goto bailout; 5476 break; /* NOTREACHED */ 5477 } 5478 5479 /* 5480 * We check the LBA and length, but don't do anything with them. 5481 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5482 * get flushed. This check will just help satisfy anyone who wants 5483 * to see an error for an out of range LBA. 5484 */ 5485 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5486 ctl_set_lba_out_of_range(ctsio); 5487 ctl_done((union ctl_io *)ctsio); 5488 goto bailout; 5489 } 5490 5491 /* 5492 * If this LUN has no backend, we can't flush the cache anyway. 5493 */ 5494 if (lun->backend == NULL) { 5495 ctl_set_invalid_opcode(ctsio); 5496 ctl_done((union ctl_io *)ctsio); 5497 goto bailout; 5498 } 5499 5500 /* 5501 * Check to see whether we're configured to send the SYNCHRONIZE 5502 * CACHE command directly to the back end. 5503 */ 5504 mtx_lock(&lun->lun_lock); 5505 if ((ctl_softc->flags & CTL_FLAG_REAL_SYNC) 5506 && (++(lun->sync_count) >= lun->sync_interval)) { 5507 lun->sync_count = 0; 5508 mtx_unlock(&lun->lun_lock); 5509 retval = lun->backend->config_write((union ctl_io *)ctsio); 5510 } else { 5511 mtx_unlock(&lun->lun_lock); 5512 ctl_set_success(ctsio); 5513 ctl_done((union ctl_io *)ctsio); 5514 } 5515 5516bailout: 5517 5518 return (retval); 5519} 5520 5521int 5522ctl_format(struct ctl_scsiio *ctsio) 5523{ 5524 struct scsi_format *cdb; 5525 struct ctl_lun *lun; 5526 struct ctl_softc *ctl_softc; 5527 int length, defect_list_len; 5528 5529 CTL_DEBUG_PRINT(("ctl_format\n")); 5530 5531 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5532 ctl_softc = control_softc; 5533 5534 cdb = (struct scsi_format *)ctsio->cdb; 5535 5536 length = 0; 5537 if (cdb->byte2 & SF_FMTDATA) { 5538 if (cdb->byte2 & SF_LONGLIST) 5539 length = sizeof(struct scsi_format_header_long); 5540 else 5541 length = sizeof(struct scsi_format_header_short); 5542 } 5543 5544 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5545 && (length > 0)) { 5546 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5547 ctsio->kern_data_len = length; 5548 ctsio->kern_total_len = length; 5549 ctsio->kern_data_resid = 0; 5550 ctsio->kern_rel_offset = 0; 5551 ctsio->kern_sg_entries = 0; 5552 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5553 ctsio->be_move_done = ctl_config_move_done; 5554 ctl_datamove((union ctl_io *)ctsio); 5555 5556 return (CTL_RETVAL_COMPLETE); 5557 } 5558 5559 defect_list_len = 0; 5560 5561 if (cdb->byte2 & SF_FMTDATA) { 5562 if (cdb->byte2 & SF_LONGLIST) { 5563 struct scsi_format_header_long *header; 5564 5565 header = (struct scsi_format_header_long *) 5566 ctsio->kern_data_ptr; 5567 5568 defect_list_len = scsi_4btoul(header->defect_list_len); 5569 if (defect_list_len != 0) { 5570 ctl_set_invalid_field(ctsio, 5571 /*sks_valid*/ 1, 5572 /*command*/ 0, 5573 /*field*/ 2, 5574 /*bit_valid*/ 0, 5575 /*bit*/ 0); 5576 goto bailout; 5577 } 5578 } else { 5579 struct scsi_format_header_short *header; 5580 5581 header = (struct scsi_format_header_short *) 5582 ctsio->kern_data_ptr; 5583 5584 defect_list_len = scsi_2btoul(header->defect_list_len); 5585 if (defect_list_len != 0) { 5586 ctl_set_invalid_field(ctsio, 5587 /*sks_valid*/ 1, 5588 /*command*/ 0, 5589 /*field*/ 2, 5590 /*bit_valid*/ 0, 5591 /*bit*/ 0); 5592 goto bailout; 5593 } 5594 } 5595 } 5596 5597 /* 5598 * The format command will clear out the "Medium format corrupted" 5599 * status if set by the configuration code. That status is really 5600 * just a way to notify the host that we have lost the media, and 5601 * get them to issue a command that will basically make them think 5602 * they're blowing away the media. 5603 */ 5604 mtx_lock(&lun->lun_lock); 5605 lun->flags &= ~CTL_LUN_INOPERABLE; 5606 mtx_unlock(&lun->lun_lock); 5607 5608 ctl_set_success(ctsio); 5609bailout: 5610 5611 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5612 free(ctsio->kern_data_ptr, M_CTL); 5613 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5614 } 5615 5616 ctl_done((union ctl_io *)ctsio); 5617 return (CTL_RETVAL_COMPLETE); 5618} 5619 5620int 5621ctl_read_buffer(struct ctl_scsiio *ctsio) 5622{ 5623 struct scsi_read_buffer *cdb; 5624 struct ctl_lun *lun; 5625 int buffer_offset, len; 5626 static uint8_t descr[4]; 5627 static uint8_t echo_descr[4] = { 0 }; 5628 5629 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5630 5631 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5632 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5633 5634 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA && 5635 (cdb->byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5636 (cdb->byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5637 ctl_set_invalid_field(ctsio, 5638 /*sks_valid*/ 1, 5639 /*command*/ 1, 5640 /*field*/ 1, 5641 /*bit_valid*/ 1, 5642 /*bit*/ 4); 5643 ctl_done((union ctl_io *)ctsio); 5644 return (CTL_RETVAL_COMPLETE); 5645 } 5646 5647 len = scsi_3btoul(cdb->length); 5648 buffer_offset = scsi_3btoul(cdb->offset); 5649 5650 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5651 ctl_set_invalid_field(ctsio, 5652 /*sks_valid*/ 1, 5653 /*command*/ 1, 5654 /*field*/ 6, 5655 /*bit_valid*/ 0, 5656 /*bit*/ 0); 5657 ctl_done((union ctl_io *)ctsio); 5658 return (CTL_RETVAL_COMPLETE); 5659 } 5660 5661 if ((cdb->byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5662 descr[0] = 0; 5663 scsi_ulto3b(CTL_WRITE_BUFFER_SIZE, &descr[1]); 5664 ctsio->kern_data_ptr = descr; 5665 len = min(len, sizeof(descr)); 5666 } else if ((cdb->byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5667 ctsio->kern_data_ptr = echo_descr; 5668 len = min(len, sizeof(echo_descr)); 5669 } else { 5670 if (lun->write_buffer == NULL) { 5671 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5672 M_CTL, M_WAITOK); 5673 } 5674 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5675 } 5676 ctsio->kern_data_len = len; 5677 ctsio->kern_total_len = len; 5678 ctsio->kern_data_resid = 0; 5679 ctsio->kern_rel_offset = 0; 5680 ctsio->kern_sg_entries = 0; 5681 ctl_set_success(ctsio); 5682 ctsio->be_move_done = ctl_config_move_done; 5683 ctl_datamove((union ctl_io *)ctsio); 5684 return (CTL_RETVAL_COMPLETE); 5685} 5686 5687int 5688ctl_write_buffer(struct ctl_scsiio *ctsio) 5689{ 5690 struct scsi_write_buffer *cdb; 5691 struct ctl_lun *lun; 5692 int buffer_offset, len; 5693 5694 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5695 5696 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5697 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5698 5699 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5700 ctl_set_invalid_field(ctsio, 5701 /*sks_valid*/ 1, 5702 /*command*/ 1, 5703 /*field*/ 1, 5704 /*bit_valid*/ 1, 5705 /*bit*/ 4); 5706 ctl_done((union ctl_io *)ctsio); 5707 return (CTL_RETVAL_COMPLETE); 5708 } 5709 5710 len = scsi_3btoul(cdb->length); 5711 buffer_offset = scsi_3btoul(cdb->offset); 5712 5713 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5714 ctl_set_invalid_field(ctsio, 5715 /*sks_valid*/ 1, 5716 /*command*/ 1, 5717 /*field*/ 6, 5718 /*bit_valid*/ 0, 5719 /*bit*/ 0); 5720 ctl_done((union ctl_io *)ctsio); 5721 return (CTL_RETVAL_COMPLETE); 5722 } 5723 5724 /* 5725 * If we've got a kernel request that hasn't been malloced yet, 5726 * malloc it and tell the caller the data buffer is here. 5727 */ 5728 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5729 if (lun->write_buffer == NULL) { 5730 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5731 M_CTL, M_WAITOK); 5732 } 5733 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5734 ctsio->kern_data_len = len; 5735 ctsio->kern_total_len = len; 5736 ctsio->kern_data_resid = 0; 5737 ctsio->kern_rel_offset = 0; 5738 ctsio->kern_sg_entries = 0; 5739 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5740 ctsio->be_move_done = ctl_config_move_done; 5741 ctl_datamove((union ctl_io *)ctsio); 5742 5743 return (CTL_RETVAL_COMPLETE); 5744 } 5745 5746 ctl_set_success(ctsio); 5747 ctl_done((union ctl_io *)ctsio); 5748 return (CTL_RETVAL_COMPLETE); 5749} 5750 5751int 5752ctl_write_same(struct ctl_scsiio *ctsio) 5753{ 5754 struct ctl_lun *lun; 5755 struct ctl_lba_len_flags *lbalen; 5756 uint64_t lba; 5757 uint32_t num_blocks; 5758 int len, retval; 5759 uint8_t byte2; 5760 5761 retval = CTL_RETVAL_COMPLETE; 5762 5763 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5764 5765 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5766 5767 switch (ctsio->cdb[0]) { 5768 case WRITE_SAME_10: { 5769 struct scsi_write_same_10 *cdb; 5770 5771 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5772 5773 lba = scsi_4btoul(cdb->addr); 5774 num_blocks = scsi_2btoul(cdb->length); 5775 byte2 = cdb->byte2; 5776 break; 5777 } 5778 case WRITE_SAME_16: { 5779 struct scsi_write_same_16 *cdb; 5780 5781 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5782 5783 lba = scsi_8btou64(cdb->addr); 5784 num_blocks = scsi_4btoul(cdb->length); 5785 byte2 = cdb->byte2; 5786 break; 5787 } 5788 default: 5789 /* 5790 * We got a command we don't support. This shouldn't 5791 * happen, commands should be filtered out above us. 5792 */ 5793 ctl_set_invalid_opcode(ctsio); 5794 ctl_done((union ctl_io *)ctsio); 5795 5796 return (CTL_RETVAL_COMPLETE); 5797 break; /* NOTREACHED */ 5798 } 5799 5800 /* NDOB and ANCHOR flags can be used only together with UNMAP */ 5801 if ((byte2 & SWS_UNMAP) == 0 && 5802 (byte2 & (SWS_NDOB | SWS_ANCHOR)) != 0) { 5803 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5804 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5805 ctl_done((union ctl_io *)ctsio); 5806 return (CTL_RETVAL_COMPLETE); 5807 } 5808 5809 /* 5810 * The first check is to make sure we're in bounds, the second 5811 * check is to catch wrap-around problems. If the lba + num blocks 5812 * is less than the lba, then we've wrapped around and the block 5813 * range is invalid anyway. 5814 */ 5815 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5816 || ((lba + num_blocks) < lba)) { 5817 ctl_set_lba_out_of_range(ctsio); 5818 ctl_done((union ctl_io *)ctsio); 5819 return (CTL_RETVAL_COMPLETE); 5820 } 5821 5822 /* Zero number of blocks means "to the last logical block" */ 5823 if (num_blocks == 0) { 5824 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5825 ctl_set_invalid_field(ctsio, 5826 /*sks_valid*/ 0, 5827 /*command*/ 1, 5828 /*field*/ 0, 5829 /*bit_valid*/ 0, 5830 /*bit*/ 0); 5831 ctl_done((union ctl_io *)ctsio); 5832 return (CTL_RETVAL_COMPLETE); 5833 } 5834 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5835 } 5836 5837 len = lun->be_lun->blocksize; 5838 5839 /* 5840 * If we've got a kernel request that hasn't been malloced yet, 5841 * malloc it and tell the caller the data buffer is here. 5842 */ 5843 if ((byte2 & SWS_NDOB) == 0 && 5844 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5845 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5846 ctsio->kern_data_len = len; 5847 ctsio->kern_total_len = len; 5848 ctsio->kern_data_resid = 0; 5849 ctsio->kern_rel_offset = 0; 5850 ctsio->kern_sg_entries = 0; 5851 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5852 ctsio->be_move_done = ctl_config_move_done; 5853 ctl_datamove((union ctl_io *)ctsio); 5854 5855 return (CTL_RETVAL_COMPLETE); 5856 } 5857 5858 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5859 lbalen->lba = lba; 5860 lbalen->len = num_blocks; 5861 lbalen->flags = byte2; 5862 retval = lun->backend->config_write((union ctl_io *)ctsio); 5863 5864 return (retval); 5865} 5866 5867int 5868ctl_unmap(struct ctl_scsiio *ctsio) 5869{ 5870 struct ctl_lun *lun; 5871 struct scsi_unmap *cdb; 5872 struct ctl_ptr_len_flags *ptrlen; 5873 struct scsi_unmap_header *hdr; 5874 struct scsi_unmap_desc *buf, *end, *endnz, *range; 5875 uint64_t lba; 5876 uint32_t num_blocks; 5877 int len, retval; 5878 uint8_t byte2; 5879 5880 retval = CTL_RETVAL_COMPLETE; 5881 5882 CTL_DEBUG_PRINT(("ctl_unmap\n")); 5883 5884 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5885 cdb = (struct scsi_unmap *)ctsio->cdb; 5886 5887 len = scsi_2btoul(cdb->length); 5888 byte2 = cdb->byte2; 5889 5890 /* 5891 * If we've got a kernel request that hasn't been malloced yet, 5892 * malloc it and tell the caller the data buffer is here. 5893 */ 5894 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5895 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5896 ctsio->kern_data_len = len; 5897 ctsio->kern_total_len = len; 5898 ctsio->kern_data_resid = 0; 5899 ctsio->kern_rel_offset = 0; 5900 ctsio->kern_sg_entries = 0; 5901 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5902 ctsio->be_move_done = ctl_config_move_done; 5903 ctl_datamove((union ctl_io *)ctsio); 5904 5905 return (CTL_RETVAL_COMPLETE); 5906 } 5907 5908 len = ctsio->kern_total_len - ctsio->kern_data_resid; 5909 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 5910 if (len < sizeof (*hdr) || 5911 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 5912 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 5913 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 5914 ctl_set_invalid_field(ctsio, 5915 /*sks_valid*/ 0, 5916 /*command*/ 0, 5917 /*field*/ 0, 5918 /*bit_valid*/ 0, 5919 /*bit*/ 0); 5920 goto done; 5921 } 5922 len = scsi_2btoul(hdr->desc_length); 5923 buf = (struct scsi_unmap_desc *)(hdr + 1); 5924 end = buf + len / sizeof(*buf); 5925 5926 endnz = buf; 5927 for (range = buf; range < end; range++) { 5928 lba = scsi_8btou64(range->lba); 5929 num_blocks = scsi_4btoul(range->length); 5930 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5931 || ((lba + num_blocks) < lba)) { 5932 ctl_set_lba_out_of_range(ctsio); 5933 ctl_done((union ctl_io *)ctsio); 5934 return (CTL_RETVAL_COMPLETE); 5935 } 5936 if (num_blocks != 0) 5937 endnz = range + 1; 5938 } 5939 5940 /* 5941 * Block backend can not handle zero last range. 5942 * Filter it out and return if there is nothing left. 5943 */ 5944 len = (uint8_t *)endnz - (uint8_t *)buf; 5945 if (len == 0) { 5946 ctl_set_success(ctsio); 5947 goto done; 5948 } 5949 5950 mtx_lock(&lun->lun_lock); 5951 ptrlen = (struct ctl_ptr_len_flags *) 5952 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5953 ptrlen->ptr = (void *)buf; 5954 ptrlen->len = len; 5955 ptrlen->flags = byte2; 5956 ctl_check_blocked(lun); 5957 mtx_unlock(&lun->lun_lock); 5958 5959 retval = lun->backend->config_write((union ctl_io *)ctsio); 5960 return (retval); 5961 5962done: 5963 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5964 free(ctsio->kern_data_ptr, M_CTL); 5965 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5966 } 5967 ctl_done((union ctl_io *)ctsio); 5968 return (CTL_RETVAL_COMPLETE); 5969} 5970 5971/* 5972 * Note that this function currently doesn't actually do anything inside 5973 * CTL to enforce things if the DQue bit is turned on. 5974 * 5975 * Also note that this function can't be used in the default case, because 5976 * the DQue bit isn't set in the changeable mask for the control mode page 5977 * anyway. This is just here as an example for how to implement a page 5978 * handler, and a placeholder in case we want to allow the user to turn 5979 * tagged queueing on and off. 5980 * 5981 * The D_SENSE bit handling is functional, however, and will turn 5982 * descriptor sense on and off for a given LUN. 5983 */ 5984int 5985ctl_control_page_handler(struct ctl_scsiio *ctsio, 5986 struct ctl_page_index *page_index, uint8_t *page_ptr) 5987{ 5988 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 5989 struct ctl_lun *lun; 5990 struct ctl_softc *softc; 5991 int set_ua; 5992 uint32_t initidx; 5993 5994 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5995 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5996 set_ua = 0; 5997 5998 user_cp = (struct scsi_control_page *)page_ptr; 5999 current_cp = (struct scsi_control_page *) 6000 (page_index->page_data + (page_index->page_len * 6001 CTL_PAGE_CURRENT)); 6002 saved_cp = (struct scsi_control_page *) 6003 (page_index->page_data + (page_index->page_len * 6004 CTL_PAGE_SAVED)); 6005 6006 softc = control_softc; 6007 6008 mtx_lock(&lun->lun_lock); 6009 if (((current_cp->rlec & SCP_DSENSE) == 0) 6010 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 6011 /* 6012 * Descriptor sense is currently turned off and the user 6013 * wants to turn it on. 6014 */ 6015 current_cp->rlec |= SCP_DSENSE; 6016 saved_cp->rlec |= SCP_DSENSE; 6017 lun->flags |= CTL_LUN_SENSE_DESC; 6018 set_ua = 1; 6019 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 6020 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 6021 /* 6022 * Descriptor sense is currently turned on, and the user 6023 * wants to turn it off. 6024 */ 6025 current_cp->rlec &= ~SCP_DSENSE; 6026 saved_cp->rlec &= ~SCP_DSENSE; 6027 lun->flags &= ~CTL_LUN_SENSE_DESC; 6028 set_ua = 1; 6029 } 6030 if ((current_cp->queue_flags & SCP_QUEUE_ALG_MASK) != 6031 (user_cp->queue_flags & SCP_QUEUE_ALG_MASK)) { 6032 current_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6033 current_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6034 saved_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6035 saved_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6036 set_ua = 1; 6037 } 6038 if ((current_cp->eca_and_aen & SCP_SWP) != 6039 (user_cp->eca_and_aen & SCP_SWP)) { 6040 current_cp->eca_and_aen &= ~SCP_SWP; 6041 current_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6042 saved_cp->eca_and_aen &= ~SCP_SWP; 6043 saved_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6044 set_ua = 1; 6045 } 6046 if (set_ua != 0) { 6047 int i; 6048 /* 6049 * Let other initiators know that the mode 6050 * parameters for this LUN have changed. 6051 */ 6052 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6053 if (i == initidx) 6054 continue; 6055 6056 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6057 } 6058 } 6059 mtx_unlock(&lun->lun_lock); 6060 6061 return (0); 6062} 6063 6064int 6065ctl_caching_sp_handler(struct ctl_scsiio *ctsio, 6066 struct ctl_page_index *page_index, uint8_t *page_ptr) 6067{ 6068 struct scsi_caching_page *current_cp, *saved_cp, *user_cp; 6069 struct ctl_lun *lun; 6070 int set_ua; 6071 uint32_t initidx; 6072 6073 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6074 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6075 set_ua = 0; 6076 6077 user_cp = (struct scsi_caching_page *)page_ptr; 6078 current_cp = (struct scsi_caching_page *) 6079 (page_index->page_data + (page_index->page_len * 6080 CTL_PAGE_CURRENT)); 6081 saved_cp = (struct scsi_caching_page *) 6082 (page_index->page_data + (page_index->page_len * 6083 CTL_PAGE_SAVED)); 6084 6085 mtx_lock(&lun->lun_lock); 6086 if ((current_cp->flags1 & (SCP_WCE | SCP_RCD)) != 6087 (user_cp->flags1 & (SCP_WCE | SCP_RCD))) { 6088 current_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6089 current_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6090 saved_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6091 saved_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6092 set_ua = 1; 6093 } 6094 if (set_ua != 0) { 6095 int i; 6096 /* 6097 * Let other initiators know that the mode 6098 * parameters for this LUN have changed. 6099 */ 6100 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6101 if (i == initidx) 6102 continue; 6103 6104 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6105 } 6106 } 6107 mtx_unlock(&lun->lun_lock); 6108 6109 return (0); 6110} 6111 6112int 6113ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 6114 struct ctl_page_index *page_index, 6115 uint8_t *page_ptr) 6116{ 6117 uint8_t *c; 6118 int i; 6119 6120 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 6121 ctl_time_io_secs = 6122 (c[0] << 8) | 6123 (c[1] << 0) | 6124 0; 6125 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 6126 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 6127 printf("page data:"); 6128 for (i=0; i<8; i++) 6129 printf(" %.2x",page_ptr[i]); 6130 printf("\n"); 6131 return (0); 6132} 6133 6134int 6135ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 6136 struct ctl_page_index *page_index, 6137 int pc) 6138{ 6139 struct copan_debugconf_subpage *page; 6140 6141 page = (struct copan_debugconf_subpage *)page_index->page_data + 6142 (page_index->page_len * pc); 6143 6144 switch (pc) { 6145 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6146 case SMS_PAGE_CTRL_DEFAULT >> 6: 6147 case SMS_PAGE_CTRL_SAVED >> 6: 6148 /* 6149 * We don't update the changable or default bits for this page. 6150 */ 6151 break; 6152 case SMS_PAGE_CTRL_CURRENT >> 6: 6153 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 6154 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 6155 break; 6156 default: 6157#ifdef NEEDTOPORT 6158 EPRINT(0, "Invalid PC %d!!", pc); 6159#endif /* NEEDTOPORT */ 6160 break; 6161 } 6162 return (0); 6163} 6164 6165 6166static int 6167ctl_do_mode_select(union ctl_io *io) 6168{ 6169 struct scsi_mode_page_header *page_header; 6170 struct ctl_page_index *page_index; 6171 struct ctl_scsiio *ctsio; 6172 int control_dev, page_len; 6173 int page_len_offset, page_len_size; 6174 union ctl_modepage_info *modepage_info; 6175 struct ctl_lun *lun; 6176 int *len_left, *len_used; 6177 int retval, i; 6178 6179 ctsio = &io->scsiio; 6180 page_index = NULL; 6181 page_len = 0; 6182 retval = CTL_RETVAL_COMPLETE; 6183 6184 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6185 6186 if (lun->be_lun->lun_type != T_DIRECT) 6187 control_dev = 1; 6188 else 6189 control_dev = 0; 6190 6191 modepage_info = (union ctl_modepage_info *) 6192 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6193 len_left = &modepage_info->header.len_left; 6194 len_used = &modepage_info->header.len_used; 6195 6196do_next_page: 6197 6198 page_header = (struct scsi_mode_page_header *) 6199 (ctsio->kern_data_ptr + *len_used); 6200 6201 if (*len_left == 0) { 6202 free(ctsio->kern_data_ptr, M_CTL); 6203 ctl_set_success(ctsio); 6204 ctl_done((union ctl_io *)ctsio); 6205 return (CTL_RETVAL_COMPLETE); 6206 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6207 6208 free(ctsio->kern_data_ptr, M_CTL); 6209 ctl_set_param_len_error(ctsio); 6210 ctl_done((union ctl_io *)ctsio); 6211 return (CTL_RETVAL_COMPLETE); 6212 6213 } else if ((page_header->page_code & SMPH_SPF) 6214 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6215 6216 free(ctsio->kern_data_ptr, M_CTL); 6217 ctl_set_param_len_error(ctsio); 6218 ctl_done((union ctl_io *)ctsio); 6219 return (CTL_RETVAL_COMPLETE); 6220 } 6221 6222 6223 /* 6224 * XXX KDM should we do something with the block descriptor? 6225 */ 6226 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6227 6228 if ((control_dev != 0) 6229 && (lun->mode_pages.index[i].page_flags & 6230 CTL_PAGE_FLAG_DISK_ONLY)) 6231 continue; 6232 6233 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 6234 (page_header->page_code & SMPH_PC_MASK)) 6235 continue; 6236 6237 /* 6238 * If neither page has a subpage code, then we've got a 6239 * match. 6240 */ 6241 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 6242 && ((page_header->page_code & SMPH_SPF) == 0)) { 6243 page_index = &lun->mode_pages.index[i]; 6244 page_len = page_header->page_length; 6245 break; 6246 } 6247 6248 /* 6249 * If both pages have subpages, then the subpage numbers 6250 * have to match. 6251 */ 6252 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 6253 && (page_header->page_code & SMPH_SPF)) { 6254 struct scsi_mode_page_header_sp *sph; 6255 6256 sph = (struct scsi_mode_page_header_sp *)page_header; 6257 6258 if (lun->mode_pages.index[i].subpage == 6259 sph->subpage) { 6260 page_index = &lun->mode_pages.index[i]; 6261 page_len = scsi_2btoul(sph->page_length); 6262 break; 6263 } 6264 } 6265 } 6266 6267 /* 6268 * If we couldn't find the page, or if we don't have a mode select 6269 * handler for it, send back an error to the user. 6270 */ 6271 if ((page_index == NULL) 6272 || (page_index->select_handler == NULL)) { 6273 ctl_set_invalid_field(ctsio, 6274 /*sks_valid*/ 1, 6275 /*command*/ 0, 6276 /*field*/ *len_used, 6277 /*bit_valid*/ 0, 6278 /*bit*/ 0); 6279 free(ctsio->kern_data_ptr, M_CTL); 6280 ctl_done((union ctl_io *)ctsio); 6281 return (CTL_RETVAL_COMPLETE); 6282 } 6283 6284 if (page_index->page_code & SMPH_SPF) { 6285 page_len_offset = 2; 6286 page_len_size = 2; 6287 } else { 6288 page_len_size = 1; 6289 page_len_offset = 1; 6290 } 6291 6292 /* 6293 * If the length the initiator gives us isn't the one we specify in 6294 * the mode page header, or if they didn't specify enough data in 6295 * the CDB to avoid truncating this page, kick out the request. 6296 */ 6297 if ((page_len != (page_index->page_len - page_len_offset - 6298 page_len_size)) 6299 || (*len_left < page_index->page_len)) { 6300 6301 6302 ctl_set_invalid_field(ctsio, 6303 /*sks_valid*/ 1, 6304 /*command*/ 0, 6305 /*field*/ *len_used + page_len_offset, 6306 /*bit_valid*/ 0, 6307 /*bit*/ 0); 6308 free(ctsio->kern_data_ptr, M_CTL); 6309 ctl_done((union ctl_io *)ctsio); 6310 return (CTL_RETVAL_COMPLETE); 6311 } 6312 6313 /* 6314 * Run through the mode page, checking to make sure that the bits 6315 * the user changed are actually legal for him to change. 6316 */ 6317 for (i = 0; i < page_index->page_len; i++) { 6318 uint8_t *user_byte, *change_mask, *current_byte; 6319 int bad_bit; 6320 int j; 6321 6322 user_byte = (uint8_t *)page_header + i; 6323 change_mask = page_index->page_data + 6324 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6325 current_byte = page_index->page_data + 6326 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6327 6328 /* 6329 * Check to see whether the user set any bits in this byte 6330 * that he is not allowed to set. 6331 */ 6332 if ((*user_byte & ~(*change_mask)) == 6333 (*current_byte & ~(*change_mask))) 6334 continue; 6335 6336 /* 6337 * Go through bit by bit to determine which one is illegal. 6338 */ 6339 bad_bit = 0; 6340 for (j = 7; j >= 0; j--) { 6341 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6342 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6343 bad_bit = i; 6344 break; 6345 } 6346 } 6347 ctl_set_invalid_field(ctsio, 6348 /*sks_valid*/ 1, 6349 /*command*/ 0, 6350 /*field*/ *len_used + i, 6351 /*bit_valid*/ 1, 6352 /*bit*/ bad_bit); 6353 free(ctsio->kern_data_ptr, M_CTL); 6354 ctl_done((union ctl_io *)ctsio); 6355 return (CTL_RETVAL_COMPLETE); 6356 } 6357 6358 /* 6359 * Decrement these before we call the page handler, since we may 6360 * end up getting called back one way or another before the handler 6361 * returns to this context. 6362 */ 6363 *len_left -= page_index->page_len; 6364 *len_used += page_index->page_len; 6365 6366 retval = page_index->select_handler(ctsio, page_index, 6367 (uint8_t *)page_header); 6368 6369 /* 6370 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6371 * wait until this queued command completes to finish processing 6372 * the mode page. If it returns anything other than 6373 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6374 * already set the sense information, freed the data pointer, and 6375 * completed the io for us. 6376 */ 6377 if (retval != CTL_RETVAL_COMPLETE) 6378 goto bailout_no_done; 6379 6380 /* 6381 * If the initiator sent us more than one page, parse the next one. 6382 */ 6383 if (*len_left > 0) 6384 goto do_next_page; 6385 6386 ctl_set_success(ctsio); 6387 free(ctsio->kern_data_ptr, M_CTL); 6388 ctl_done((union ctl_io *)ctsio); 6389 6390bailout_no_done: 6391 6392 return (CTL_RETVAL_COMPLETE); 6393 6394} 6395 6396int 6397ctl_mode_select(struct ctl_scsiio *ctsio) 6398{ 6399 int param_len, pf, sp; 6400 int header_size, bd_len; 6401 int len_left, len_used; 6402 struct ctl_page_index *page_index; 6403 struct ctl_lun *lun; 6404 int control_dev, page_len; 6405 union ctl_modepage_info *modepage_info; 6406 int retval; 6407 6408 pf = 0; 6409 sp = 0; 6410 page_len = 0; 6411 len_used = 0; 6412 len_left = 0; 6413 retval = 0; 6414 bd_len = 0; 6415 page_index = NULL; 6416 6417 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6418 6419 if (lun->be_lun->lun_type != T_DIRECT) 6420 control_dev = 1; 6421 else 6422 control_dev = 0; 6423 6424 switch (ctsio->cdb[0]) { 6425 case MODE_SELECT_6: { 6426 struct scsi_mode_select_6 *cdb; 6427 6428 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6429 6430 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6431 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6432 6433 param_len = cdb->length; 6434 header_size = sizeof(struct scsi_mode_header_6); 6435 break; 6436 } 6437 case MODE_SELECT_10: { 6438 struct scsi_mode_select_10 *cdb; 6439 6440 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6441 6442 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6443 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6444 6445 param_len = scsi_2btoul(cdb->length); 6446 header_size = sizeof(struct scsi_mode_header_10); 6447 break; 6448 } 6449 default: 6450 ctl_set_invalid_opcode(ctsio); 6451 ctl_done((union ctl_io *)ctsio); 6452 return (CTL_RETVAL_COMPLETE); 6453 break; /* NOTREACHED */ 6454 } 6455 6456 /* 6457 * From SPC-3: 6458 * "A parameter list length of zero indicates that the Data-Out Buffer 6459 * shall be empty. This condition shall not be considered as an error." 6460 */ 6461 if (param_len == 0) { 6462 ctl_set_success(ctsio); 6463 ctl_done((union ctl_io *)ctsio); 6464 return (CTL_RETVAL_COMPLETE); 6465 } 6466 6467 /* 6468 * Since we'll hit this the first time through, prior to 6469 * allocation, we don't need to free a data buffer here. 6470 */ 6471 if (param_len < header_size) { 6472 ctl_set_param_len_error(ctsio); 6473 ctl_done((union ctl_io *)ctsio); 6474 return (CTL_RETVAL_COMPLETE); 6475 } 6476 6477 /* 6478 * Allocate the data buffer and grab the user's data. In theory, 6479 * we shouldn't have to sanity check the parameter list length here 6480 * because the maximum size is 64K. We should be able to malloc 6481 * that much without too many problems. 6482 */ 6483 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6484 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6485 ctsio->kern_data_len = param_len; 6486 ctsio->kern_total_len = param_len; 6487 ctsio->kern_data_resid = 0; 6488 ctsio->kern_rel_offset = 0; 6489 ctsio->kern_sg_entries = 0; 6490 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6491 ctsio->be_move_done = ctl_config_move_done; 6492 ctl_datamove((union ctl_io *)ctsio); 6493 6494 return (CTL_RETVAL_COMPLETE); 6495 } 6496 6497 switch (ctsio->cdb[0]) { 6498 case MODE_SELECT_6: { 6499 struct scsi_mode_header_6 *mh6; 6500 6501 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6502 bd_len = mh6->blk_desc_len; 6503 break; 6504 } 6505 case MODE_SELECT_10: { 6506 struct scsi_mode_header_10 *mh10; 6507 6508 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6509 bd_len = scsi_2btoul(mh10->blk_desc_len); 6510 break; 6511 } 6512 default: 6513 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6514 break; 6515 } 6516 6517 if (param_len < (header_size + bd_len)) { 6518 free(ctsio->kern_data_ptr, M_CTL); 6519 ctl_set_param_len_error(ctsio); 6520 ctl_done((union ctl_io *)ctsio); 6521 return (CTL_RETVAL_COMPLETE); 6522 } 6523 6524 /* 6525 * Set the IO_CONT flag, so that if this I/O gets passed to 6526 * ctl_config_write_done(), it'll get passed back to 6527 * ctl_do_mode_select() for further processing, or completion if 6528 * we're all done. 6529 */ 6530 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6531 ctsio->io_cont = ctl_do_mode_select; 6532 6533 modepage_info = (union ctl_modepage_info *) 6534 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6535 6536 memset(modepage_info, 0, sizeof(*modepage_info)); 6537 6538 len_left = param_len - header_size - bd_len; 6539 len_used = header_size + bd_len; 6540 6541 modepage_info->header.len_left = len_left; 6542 modepage_info->header.len_used = len_used; 6543 6544 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6545} 6546 6547int 6548ctl_mode_sense(struct ctl_scsiio *ctsio) 6549{ 6550 struct ctl_lun *lun; 6551 int pc, page_code, dbd, llba, subpage; 6552 int alloc_len, page_len, header_len, total_len; 6553 struct scsi_mode_block_descr *block_desc; 6554 struct ctl_page_index *page_index; 6555 int control_dev; 6556 6557 dbd = 0; 6558 llba = 0; 6559 block_desc = NULL; 6560 page_index = NULL; 6561 6562 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6563 6564 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6565 6566 if (lun->be_lun->lun_type != T_DIRECT) 6567 control_dev = 1; 6568 else 6569 control_dev = 0; 6570 6571 switch (ctsio->cdb[0]) { 6572 case MODE_SENSE_6: { 6573 struct scsi_mode_sense_6 *cdb; 6574 6575 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6576 6577 header_len = sizeof(struct scsi_mode_hdr_6); 6578 if (cdb->byte2 & SMS_DBD) 6579 dbd = 1; 6580 else 6581 header_len += sizeof(struct scsi_mode_block_descr); 6582 6583 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6584 page_code = cdb->page & SMS_PAGE_CODE; 6585 subpage = cdb->subpage; 6586 alloc_len = cdb->length; 6587 break; 6588 } 6589 case MODE_SENSE_10: { 6590 struct scsi_mode_sense_10 *cdb; 6591 6592 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6593 6594 header_len = sizeof(struct scsi_mode_hdr_10); 6595 6596 if (cdb->byte2 & SMS_DBD) 6597 dbd = 1; 6598 else 6599 header_len += sizeof(struct scsi_mode_block_descr); 6600 if (cdb->byte2 & SMS10_LLBAA) 6601 llba = 1; 6602 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6603 page_code = cdb->page & SMS_PAGE_CODE; 6604 subpage = cdb->subpage; 6605 alloc_len = scsi_2btoul(cdb->length); 6606 break; 6607 } 6608 default: 6609 ctl_set_invalid_opcode(ctsio); 6610 ctl_done((union ctl_io *)ctsio); 6611 return (CTL_RETVAL_COMPLETE); 6612 break; /* NOTREACHED */ 6613 } 6614 6615 /* 6616 * We have to make a first pass through to calculate the size of 6617 * the pages that match the user's query. Then we allocate enough 6618 * memory to hold it, and actually copy the data into the buffer. 6619 */ 6620 switch (page_code) { 6621 case SMS_ALL_PAGES_PAGE: { 6622 int i; 6623 6624 page_len = 0; 6625 6626 /* 6627 * At the moment, values other than 0 and 0xff here are 6628 * reserved according to SPC-3. 6629 */ 6630 if ((subpage != SMS_SUBPAGE_PAGE_0) 6631 && (subpage != SMS_SUBPAGE_ALL)) { 6632 ctl_set_invalid_field(ctsio, 6633 /*sks_valid*/ 1, 6634 /*command*/ 1, 6635 /*field*/ 3, 6636 /*bit_valid*/ 0, 6637 /*bit*/ 0); 6638 ctl_done((union ctl_io *)ctsio); 6639 return (CTL_RETVAL_COMPLETE); 6640 } 6641 6642 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6643 if ((control_dev != 0) 6644 && (lun->mode_pages.index[i].page_flags & 6645 CTL_PAGE_FLAG_DISK_ONLY)) 6646 continue; 6647 6648 /* 6649 * We don't use this subpage if the user didn't 6650 * request all subpages. 6651 */ 6652 if ((lun->mode_pages.index[i].subpage != 0) 6653 && (subpage == SMS_SUBPAGE_PAGE_0)) 6654 continue; 6655 6656#if 0 6657 printf("found page %#x len %d\n", 6658 lun->mode_pages.index[i].page_code & 6659 SMPH_PC_MASK, 6660 lun->mode_pages.index[i].page_len); 6661#endif 6662 page_len += lun->mode_pages.index[i].page_len; 6663 } 6664 break; 6665 } 6666 default: { 6667 int i; 6668 6669 page_len = 0; 6670 6671 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6672 /* Look for the right page code */ 6673 if ((lun->mode_pages.index[i].page_code & 6674 SMPH_PC_MASK) != page_code) 6675 continue; 6676 6677 /* Look for the right subpage or the subpage wildcard*/ 6678 if ((lun->mode_pages.index[i].subpage != subpage) 6679 && (subpage != SMS_SUBPAGE_ALL)) 6680 continue; 6681 6682 /* Make sure the page is supported for this dev type */ 6683 if ((control_dev != 0) 6684 && (lun->mode_pages.index[i].page_flags & 6685 CTL_PAGE_FLAG_DISK_ONLY)) 6686 continue; 6687 6688#if 0 6689 printf("found page %#x len %d\n", 6690 lun->mode_pages.index[i].page_code & 6691 SMPH_PC_MASK, 6692 lun->mode_pages.index[i].page_len); 6693#endif 6694 6695 page_len += lun->mode_pages.index[i].page_len; 6696 } 6697 6698 if (page_len == 0) { 6699 ctl_set_invalid_field(ctsio, 6700 /*sks_valid*/ 1, 6701 /*command*/ 1, 6702 /*field*/ 2, 6703 /*bit_valid*/ 1, 6704 /*bit*/ 5); 6705 ctl_done((union ctl_io *)ctsio); 6706 return (CTL_RETVAL_COMPLETE); 6707 } 6708 break; 6709 } 6710 } 6711 6712 total_len = header_len + page_len; 6713#if 0 6714 printf("header_len = %d, page_len = %d, total_len = %d\n", 6715 header_len, page_len, total_len); 6716#endif 6717 6718 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6719 ctsio->kern_sg_entries = 0; 6720 ctsio->kern_data_resid = 0; 6721 ctsio->kern_rel_offset = 0; 6722 if (total_len < alloc_len) { 6723 ctsio->residual = alloc_len - total_len; 6724 ctsio->kern_data_len = total_len; 6725 ctsio->kern_total_len = total_len; 6726 } else { 6727 ctsio->residual = 0; 6728 ctsio->kern_data_len = alloc_len; 6729 ctsio->kern_total_len = alloc_len; 6730 } 6731 6732 switch (ctsio->cdb[0]) { 6733 case MODE_SENSE_6: { 6734 struct scsi_mode_hdr_6 *header; 6735 6736 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6737 6738 header->datalen = ctl_min(total_len - 1, 254); 6739 if (control_dev == 0) { 6740 header->dev_specific = 0x10; /* DPOFUA */ 6741 if ((lun->flags & CTL_LUN_READONLY) || 6742 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6743 .eca_and_aen & SCP_SWP) != 0) 6744 header->dev_specific |= 0x80; /* WP */ 6745 } 6746 if (dbd) 6747 header->block_descr_len = 0; 6748 else 6749 header->block_descr_len = 6750 sizeof(struct scsi_mode_block_descr); 6751 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6752 break; 6753 } 6754 case MODE_SENSE_10: { 6755 struct scsi_mode_hdr_10 *header; 6756 int datalen; 6757 6758 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6759 6760 datalen = ctl_min(total_len - 2, 65533); 6761 scsi_ulto2b(datalen, header->datalen); 6762 if (control_dev == 0) { 6763 header->dev_specific = 0x10; /* DPOFUA */ 6764 if ((lun->flags & CTL_LUN_READONLY) || 6765 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6766 .eca_and_aen & SCP_SWP) != 0) 6767 header->dev_specific |= 0x80; /* WP */ 6768 } 6769 if (dbd) 6770 scsi_ulto2b(0, header->block_descr_len); 6771 else 6772 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 6773 header->block_descr_len); 6774 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6775 break; 6776 } 6777 default: 6778 panic("invalid CDB type %#x", ctsio->cdb[0]); 6779 break; /* NOTREACHED */ 6780 } 6781 6782 /* 6783 * If we've got a disk, use its blocksize in the block 6784 * descriptor. Otherwise, just set it to 0. 6785 */ 6786 if (dbd == 0) { 6787 if (control_dev == 0) 6788 scsi_ulto3b(lun->be_lun->blocksize, 6789 block_desc->block_len); 6790 else 6791 scsi_ulto3b(0, block_desc->block_len); 6792 } 6793 6794 switch (page_code) { 6795 case SMS_ALL_PAGES_PAGE: { 6796 int i, data_used; 6797 6798 data_used = header_len; 6799 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6800 struct ctl_page_index *page_index; 6801 6802 page_index = &lun->mode_pages.index[i]; 6803 6804 if ((control_dev != 0) 6805 && (page_index->page_flags & 6806 CTL_PAGE_FLAG_DISK_ONLY)) 6807 continue; 6808 6809 /* 6810 * We don't use this subpage if the user didn't 6811 * request all subpages. We already checked (above) 6812 * to make sure the user only specified a subpage 6813 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 6814 */ 6815 if ((page_index->subpage != 0) 6816 && (subpage == SMS_SUBPAGE_PAGE_0)) 6817 continue; 6818 6819 /* 6820 * Call the handler, if it exists, to update the 6821 * page to the latest values. 6822 */ 6823 if (page_index->sense_handler != NULL) 6824 page_index->sense_handler(ctsio, page_index,pc); 6825 6826 memcpy(ctsio->kern_data_ptr + data_used, 6827 page_index->page_data + 6828 (page_index->page_len * pc), 6829 page_index->page_len); 6830 data_used += page_index->page_len; 6831 } 6832 break; 6833 } 6834 default: { 6835 int i, data_used; 6836 6837 data_used = header_len; 6838 6839 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6840 struct ctl_page_index *page_index; 6841 6842 page_index = &lun->mode_pages.index[i]; 6843 6844 /* Look for the right page code */ 6845 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6846 continue; 6847 6848 /* Look for the right subpage or the subpage wildcard*/ 6849 if ((page_index->subpage != subpage) 6850 && (subpage != SMS_SUBPAGE_ALL)) 6851 continue; 6852 6853 /* Make sure the page is supported for this dev type */ 6854 if ((control_dev != 0) 6855 && (page_index->page_flags & 6856 CTL_PAGE_FLAG_DISK_ONLY)) 6857 continue; 6858 6859 /* 6860 * Call the handler, if it exists, to update the 6861 * page to the latest values. 6862 */ 6863 if (page_index->sense_handler != NULL) 6864 page_index->sense_handler(ctsio, page_index,pc); 6865 6866 memcpy(ctsio->kern_data_ptr + data_used, 6867 page_index->page_data + 6868 (page_index->page_len * pc), 6869 page_index->page_len); 6870 data_used += page_index->page_len; 6871 } 6872 break; 6873 } 6874 } 6875 6876 ctl_set_success(ctsio); 6877 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6878 ctsio->be_move_done = ctl_config_move_done; 6879 ctl_datamove((union ctl_io *)ctsio); 6880 return (CTL_RETVAL_COMPLETE); 6881} 6882 6883int 6884ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio, 6885 struct ctl_page_index *page_index, 6886 int pc) 6887{ 6888 struct ctl_lun *lun; 6889 struct scsi_log_param_header *phdr; 6890 uint8_t *data; 6891 uint64_t val; 6892 6893 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6894 data = page_index->page_data; 6895 6896 if (lun->backend->lun_attr != NULL && 6897 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksavail")) 6898 != UINT64_MAX) { 6899 phdr = (struct scsi_log_param_header *)data; 6900 scsi_ulto2b(0x0001, phdr->param_code); 6901 phdr->param_control = SLP_LBIN | SLP_LP; 6902 phdr->param_len = 8; 6903 data = (uint8_t *)(phdr + 1); 6904 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6905 data[4] = 0x01; /* per-LUN */ 6906 data += phdr->param_len; 6907 } 6908 6909 if (lun->backend->lun_attr != NULL && 6910 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksused")) 6911 != UINT64_MAX) { 6912 phdr = (struct scsi_log_param_header *)data; 6913 scsi_ulto2b(0x0002, phdr->param_code); 6914 phdr->param_control = SLP_LBIN | SLP_LP; 6915 phdr->param_len = 8; 6916 data = (uint8_t *)(phdr + 1); 6917 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6918 data[4] = 0x02; /* per-pool */ 6919 data += phdr->param_len; 6920 } 6921 6922 if (lun->backend->lun_attr != NULL && 6923 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksavail")) 6924 != UINT64_MAX) { 6925 phdr = (struct scsi_log_param_header *)data; 6926 scsi_ulto2b(0x00f1, phdr->param_code); 6927 phdr->param_control = SLP_LBIN | SLP_LP; 6928 phdr->param_len = 8; 6929 data = (uint8_t *)(phdr + 1); 6930 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6931 data[4] = 0x02; /* per-pool */ 6932 data += phdr->param_len; 6933 } 6934 6935 if (lun->backend->lun_attr != NULL && 6936 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksused")) 6937 != UINT64_MAX) { 6938 phdr = (struct scsi_log_param_header *)data; 6939 scsi_ulto2b(0x00f2, phdr->param_code); 6940 phdr->param_control = SLP_LBIN | SLP_LP; 6941 phdr->param_len = 8; 6942 data = (uint8_t *)(phdr + 1); 6943 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6944 data[4] = 0x02; /* per-pool */ 6945 data += phdr->param_len; 6946 } 6947 6948 page_index->page_len = data - page_index->page_data; 6949 return (0); 6950} 6951 6952int 6953ctl_log_sense(struct ctl_scsiio *ctsio) 6954{ 6955 struct ctl_lun *lun; 6956 int i, pc, page_code, subpage; 6957 int alloc_len, total_len; 6958 struct ctl_page_index *page_index; 6959 struct scsi_log_sense *cdb; 6960 struct scsi_log_header *header; 6961 6962 CTL_DEBUG_PRINT(("ctl_log_sense\n")); 6963 6964 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6965 cdb = (struct scsi_log_sense *)ctsio->cdb; 6966 pc = (cdb->page & SLS_PAGE_CTRL_MASK) >> 6; 6967 page_code = cdb->page & SLS_PAGE_CODE; 6968 subpage = cdb->subpage; 6969 alloc_len = scsi_2btoul(cdb->length); 6970 6971 page_index = NULL; 6972 for (i = 0; i < CTL_NUM_LOG_PAGES; i++) { 6973 page_index = &lun->log_pages.index[i]; 6974 6975 /* Look for the right page code */ 6976 if ((page_index->page_code & SL_PAGE_CODE) != page_code) 6977 continue; 6978 6979 /* Look for the right subpage or the subpage wildcard*/ 6980 if (page_index->subpage != subpage) 6981 continue; 6982 6983 break; 6984 } 6985 if (i >= CTL_NUM_LOG_PAGES) { 6986 ctl_set_invalid_field(ctsio, 6987 /*sks_valid*/ 1, 6988 /*command*/ 1, 6989 /*field*/ 2, 6990 /*bit_valid*/ 0, 6991 /*bit*/ 0); 6992 ctl_done((union ctl_io *)ctsio); 6993 return (CTL_RETVAL_COMPLETE); 6994 } 6995 6996 total_len = sizeof(struct scsi_log_header) + page_index->page_len; 6997 6998 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6999 ctsio->kern_sg_entries = 0; 7000 ctsio->kern_data_resid = 0; 7001 ctsio->kern_rel_offset = 0; 7002 if (total_len < alloc_len) { 7003 ctsio->residual = alloc_len - total_len; 7004 ctsio->kern_data_len = total_len; 7005 ctsio->kern_total_len = total_len; 7006 } else { 7007 ctsio->residual = 0; 7008 ctsio->kern_data_len = alloc_len; 7009 ctsio->kern_total_len = alloc_len; 7010 } 7011 7012 header = (struct scsi_log_header *)ctsio->kern_data_ptr; 7013 header->page = page_index->page_code; 7014 if (page_index->subpage) { 7015 header->page |= SL_SPF; 7016 header->subpage = page_index->subpage; 7017 } 7018 scsi_ulto2b(page_index->page_len, header->datalen); 7019 7020 /* 7021 * Call the handler, if it exists, to update the 7022 * page to the latest values. 7023 */ 7024 if (page_index->sense_handler != NULL) 7025 page_index->sense_handler(ctsio, page_index, pc); 7026 7027 memcpy(header + 1, page_index->page_data, page_index->page_len); 7028 7029 ctl_set_success(ctsio); 7030 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7031 ctsio->be_move_done = ctl_config_move_done; 7032 ctl_datamove((union ctl_io *)ctsio); 7033 return (CTL_RETVAL_COMPLETE); 7034} 7035 7036int 7037ctl_read_capacity(struct ctl_scsiio *ctsio) 7038{ 7039 struct scsi_read_capacity *cdb; 7040 struct scsi_read_capacity_data *data; 7041 struct ctl_lun *lun; 7042 uint32_t lba; 7043 7044 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 7045 7046 cdb = (struct scsi_read_capacity *)ctsio->cdb; 7047 7048 lba = scsi_4btoul(cdb->addr); 7049 if (((cdb->pmi & SRC_PMI) == 0) 7050 && (lba != 0)) { 7051 ctl_set_invalid_field(/*ctsio*/ ctsio, 7052 /*sks_valid*/ 1, 7053 /*command*/ 1, 7054 /*field*/ 2, 7055 /*bit_valid*/ 0, 7056 /*bit*/ 0); 7057 ctl_done((union ctl_io *)ctsio); 7058 return (CTL_RETVAL_COMPLETE); 7059 } 7060 7061 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7062 7063 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7064 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 7065 ctsio->residual = 0; 7066 ctsio->kern_data_len = sizeof(*data); 7067 ctsio->kern_total_len = sizeof(*data); 7068 ctsio->kern_data_resid = 0; 7069 ctsio->kern_rel_offset = 0; 7070 ctsio->kern_sg_entries = 0; 7071 7072 /* 7073 * If the maximum LBA is greater than 0xfffffffe, the user must 7074 * issue a SERVICE ACTION IN (16) command, with the read capacity 7075 * serivce action set. 7076 */ 7077 if (lun->be_lun->maxlba > 0xfffffffe) 7078 scsi_ulto4b(0xffffffff, data->addr); 7079 else 7080 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 7081 7082 /* 7083 * XXX KDM this may not be 512 bytes... 7084 */ 7085 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7086 7087 ctl_set_success(ctsio); 7088 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7089 ctsio->be_move_done = ctl_config_move_done; 7090 ctl_datamove((union ctl_io *)ctsio); 7091 return (CTL_RETVAL_COMPLETE); 7092} 7093 7094int 7095ctl_read_capacity_16(struct ctl_scsiio *ctsio) 7096{ 7097 struct scsi_read_capacity_16 *cdb; 7098 struct scsi_read_capacity_data_long *data; 7099 struct ctl_lun *lun; 7100 uint64_t lba; 7101 uint32_t alloc_len; 7102 7103 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 7104 7105 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 7106 7107 alloc_len = scsi_4btoul(cdb->alloc_len); 7108 lba = scsi_8btou64(cdb->addr); 7109 7110 if ((cdb->reladr & SRC16_PMI) 7111 && (lba != 0)) { 7112 ctl_set_invalid_field(/*ctsio*/ ctsio, 7113 /*sks_valid*/ 1, 7114 /*command*/ 1, 7115 /*field*/ 2, 7116 /*bit_valid*/ 0, 7117 /*bit*/ 0); 7118 ctl_done((union ctl_io *)ctsio); 7119 return (CTL_RETVAL_COMPLETE); 7120 } 7121 7122 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7123 7124 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7125 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 7126 7127 if (sizeof(*data) < alloc_len) { 7128 ctsio->residual = alloc_len - sizeof(*data); 7129 ctsio->kern_data_len = sizeof(*data); 7130 ctsio->kern_total_len = sizeof(*data); 7131 } else { 7132 ctsio->residual = 0; 7133 ctsio->kern_data_len = alloc_len; 7134 ctsio->kern_total_len = alloc_len; 7135 } 7136 ctsio->kern_data_resid = 0; 7137 ctsio->kern_rel_offset = 0; 7138 ctsio->kern_sg_entries = 0; 7139 7140 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7141 /* XXX KDM this may not be 512 bytes... */ 7142 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7143 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7144 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7145 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7146 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 7147 7148 ctl_set_success(ctsio); 7149 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7150 ctsio->be_move_done = ctl_config_move_done; 7151 ctl_datamove((union ctl_io *)ctsio); 7152 return (CTL_RETVAL_COMPLETE); 7153} 7154 7155int 7156ctl_read_defect(struct ctl_scsiio *ctsio) 7157{ 7158 struct scsi_read_defect_data_10 *ccb10; 7159 struct scsi_read_defect_data_12 *ccb12; 7160 struct scsi_read_defect_data_hdr_10 *data10; 7161 struct scsi_read_defect_data_hdr_12 *data12; 7162 uint32_t alloc_len, data_len; 7163 uint8_t format; 7164 7165 CTL_DEBUG_PRINT(("ctl_read_defect\n")); 7166 7167 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7168 ccb10 = (struct scsi_read_defect_data_10 *)&ctsio->cdb; 7169 format = ccb10->format; 7170 alloc_len = scsi_2btoul(ccb10->alloc_length); 7171 data_len = sizeof(*data10); 7172 } else { 7173 ccb12 = (struct scsi_read_defect_data_12 *)&ctsio->cdb; 7174 format = ccb12->format; 7175 alloc_len = scsi_4btoul(ccb12->alloc_length); 7176 data_len = sizeof(*data12); 7177 } 7178 if (alloc_len == 0) { 7179 ctl_set_success(ctsio); 7180 ctl_done((union ctl_io *)ctsio); 7181 return (CTL_RETVAL_COMPLETE); 7182 } 7183 7184 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 7185 if (data_len < alloc_len) { 7186 ctsio->residual = alloc_len - data_len; 7187 ctsio->kern_data_len = data_len; 7188 ctsio->kern_total_len = data_len; 7189 } else { 7190 ctsio->residual = 0; 7191 ctsio->kern_data_len = alloc_len; 7192 ctsio->kern_total_len = alloc_len; 7193 } 7194 ctsio->kern_data_resid = 0; 7195 ctsio->kern_rel_offset = 0; 7196 ctsio->kern_sg_entries = 0; 7197 7198 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7199 data10 = (struct scsi_read_defect_data_hdr_10 *) 7200 ctsio->kern_data_ptr; 7201 data10->format = format; 7202 scsi_ulto2b(0, data10->length); 7203 } else { 7204 data12 = (struct scsi_read_defect_data_hdr_12 *) 7205 ctsio->kern_data_ptr; 7206 data12->format = format; 7207 scsi_ulto2b(0, data12->generation); 7208 scsi_ulto4b(0, data12->length); 7209 } 7210 7211 ctl_set_success(ctsio); 7212 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7213 ctsio->be_move_done = ctl_config_move_done; 7214 ctl_datamove((union ctl_io *)ctsio); 7215 return (CTL_RETVAL_COMPLETE); 7216} 7217 7218int 7219ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7220{ 7221 struct scsi_maintenance_in *cdb; 7222 int retval; 7223 int alloc_len, ext, total_len = 0, g, p, pc, pg, gs, os; 7224 int num_target_port_groups, num_target_ports; 7225 struct ctl_lun *lun; 7226 struct ctl_softc *softc; 7227 struct ctl_port *port; 7228 struct scsi_target_group_data *rtg_ptr; 7229 struct scsi_target_group_data_extended *rtg_ext_ptr; 7230 struct scsi_target_port_group_descriptor *tpg_desc; 7231 7232 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7233 7234 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7235 softc = control_softc; 7236 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7237 7238 retval = CTL_RETVAL_COMPLETE; 7239 7240 switch (cdb->byte2 & STG_PDF_MASK) { 7241 case STG_PDF_LENGTH: 7242 ext = 0; 7243 break; 7244 case STG_PDF_EXTENDED: 7245 ext = 1; 7246 break; 7247 default: 7248 ctl_set_invalid_field(/*ctsio*/ ctsio, 7249 /*sks_valid*/ 1, 7250 /*command*/ 1, 7251 /*field*/ 2, 7252 /*bit_valid*/ 1, 7253 /*bit*/ 5); 7254 ctl_done((union ctl_io *)ctsio); 7255 return(retval); 7256 } 7257 7258 if (softc->is_single) 7259 num_target_port_groups = 1; 7260 else 7261 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7262 num_target_ports = 0; 7263 mtx_lock(&softc->ctl_lock); 7264 STAILQ_FOREACH(port, &softc->port_list, links) { 7265 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7266 continue; 7267 if (ctl_map_lun_back(port->targ_port, lun->lun) >= CTL_MAX_LUNS) 7268 continue; 7269 num_target_ports++; 7270 } 7271 mtx_unlock(&softc->ctl_lock); 7272 7273 if (ext) 7274 total_len = sizeof(struct scsi_target_group_data_extended); 7275 else 7276 total_len = sizeof(struct scsi_target_group_data); 7277 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7278 num_target_port_groups + 7279 sizeof(struct scsi_target_port_descriptor) * 7280 num_target_ports * num_target_port_groups; 7281 7282 alloc_len = scsi_4btoul(cdb->length); 7283 7284 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7285 7286 ctsio->kern_sg_entries = 0; 7287 7288 if (total_len < alloc_len) { 7289 ctsio->residual = alloc_len - total_len; 7290 ctsio->kern_data_len = total_len; 7291 ctsio->kern_total_len = total_len; 7292 } else { 7293 ctsio->residual = 0; 7294 ctsio->kern_data_len = alloc_len; 7295 ctsio->kern_total_len = alloc_len; 7296 } 7297 ctsio->kern_data_resid = 0; 7298 ctsio->kern_rel_offset = 0; 7299 7300 if (ext) { 7301 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7302 ctsio->kern_data_ptr; 7303 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7304 rtg_ext_ptr->format_type = 0x10; 7305 rtg_ext_ptr->implicit_transition_time = 0; 7306 tpg_desc = &rtg_ext_ptr->groups[0]; 7307 } else { 7308 rtg_ptr = (struct scsi_target_group_data *) 7309 ctsio->kern_data_ptr; 7310 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7311 tpg_desc = &rtg_ptr->groups[0]; 7312 } 7313 7314 mtx_lock(&softc->ctl_lock); 7315 pg = softc->port_offset / CTL_MAX_PORTS; 7316 if (softc->flags & CTL_FLAG_ACTIVE_SHELF) { 7317 if (softc->ha_mode == CTL_HA_MODE_ACT_STBY) { 7318 gs = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7319 os = TPG_ASYMMETRIC_ACCESS_STANDBY; 7320 } else if (lun->flags & CTL_LUN_PRIMARY_SC) { 7321 gs = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7322 os = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7323 } else { 7324 gs = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7325 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7326 } 7327 } else { 7328 gs = TPG_ASYMMETRIC_ACCESS_STANDBY; 7329 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7330 } 7331 for (g = 0; g < num_target_port_groups; g++) { 7332 tpg_desc->pref_state = (g == pg) ? gs : os; 7333 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP; 7334 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7335 tpg_desc->status = TPG_IMPLICIT; 7336 pc = 0; 7337 STAILQ_FOREACH(port, &softc->port_list, links) { 7338 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7339 continue; 7340 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 7341 CTL_MAX_LUNS) 7342 continue; 7343 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 7344 scsi_ulto2b(p, tpg_desc->descriptors[pc]. 7345 relative_target_port_identifier); 7346 pc++; 7347 } 7348 tpg_desc->target_port_count = pc; 7349 tpg_desc = (struct scsi_target_port_group_descriptor *) 7350 &tpg_desc->descriptors[pc]; 7351 } 7352 mtx_unlock(&softc->ctl_lock); 7353 7354 ctl_set_success(ctsio); 7355 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7356 ctsio->be_move_done = ctl_config_move_done; 7357 ctl_datamove((union ctl_io *)ctsio); 7358 return(retval); 7359} 7360 7361int 7362ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7363{ 7364 struct ctl_lun *lun; 7365 struct scsi_report_supported_opcodes *cdb; 7366 const struct ctl_cmd_entry *entry, *sentry; 7367 struct scsi_report_supported_opcodes_all *all; 7368 struct scsi_report_supported_opcodes_descr *descr; 7369 struct scsi_report_supported_opcodes_one *one; 7370 int retval; 7371 int alloc_len, total_len; 7372 int opcode, service_action, i, j, num; 7373 7374 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7375 7376 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7377 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7378 7379 retval = CTL_RETVAL_COMPLETE; 7380 7381 opcode = cdb->requested_opcode; 7382 service_action = scsi_2btoul(cdb->requested_service_action); 7383 switch (cdb->options & RSO_OPTIONS_MASK) { 7384 case RSO_OPTIONS_ALL: 7385 num = 0; 7386 for (i = 0; i < 256; i++) { 7387 entry = &ctl_cmd_table[i]; 7388 if (entry->flags & CTL_CMD_FLAG_SA5) { 7389 for (j = 0; j < 32; j++) { 7390 sentry = &((const struct ctl_cmd_entry *) 7391 entry->execute)[j]; 7392 if (ctl_cmd_applicable( 7393 lun->be_lun->lun_type, sentry)) 7394 num++; 7395 } 7396 } else { 7397 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7398 entry)) 7399 num++; 7400 } 7401 } 7402 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7403 num * sizeof(struct scsi_report_supported_opcodes_descr); 7404 break; 7405 case RSO_OPTIONS_OC: 7406 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7407 ctl_set_invalid_field(/*ctsio*/ ctsio, 7408 /*sks_valid*/ 1, 7409 /*command*/ 1, 7410 /*field*/ 2, 7411 /*bit_valid*/ 1, 7412 /*bit*/ 2); 7413 ctl_done((union ctl_io *)ctsio); 7414 return (CTL_RETVAL_COMPLETE); 7415 } 7416 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7417 break; 7418 case RSO_OPTIONS_OC_SA: 7419 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7420 service_action >= 32) { 7421 ctl_set_invalid_field(/*ctsio*/ ctsio, 7422 /*sks_valid*/ 1, 7423 /*command*/ 1, 7424 /*field*/ 2, 7425 /*bit_valid*/ 1, 7426 /*bit*/ 2); 7427 ctl_done((union ctl_io *)ctsio); 7428 return (CTL_RETVAL_COMPLETE); 7429 } 7430 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7431 break; 7432 default: 7433 ctl_set_invalid_field(/*ctsio*/ ctsio, 7434 /*sks_valid*/ 1, 7435 /*command*/ 1, 7436 /*field*/ 2, 7437 /*bit_valid*/ 1, 7438 /*bit*/ 2); 7439 ctl_done((union ctl_io *)ctsio); 7440 return (CTL_RETVAL_COMPLETE); 7441 } 7442 7443 alloc_len = scsi_4btoul(cdb->length); 7444 7445 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7446 7447 ctsio->kern_sg_entries = 0; 7448 7449 if (total_len < alloc_len) { 7450 ctsio->residual = alloc_len - total_len; 7451 ctsio->kern_data_len = total_len; 7452 ctsio->kern_total_len = total_len; 7453 } else { 7454 ctsio->residual = 0; 7455 ctsio->kern_data_len = alloc_len; 7456 ctsio->kern_total_len = alloc_len; 7457 } 7458 ctsio->kern_data_resid = 0; 7459 ctsio->kern_rel_offset = 0; 7460 7461 switch (cdb->options & RSO_OPTIONS_MASK) { 7462 case RSO_OPTIONS_ALL: 7463 all = (struct scsi_report_supported_opcodes_all *) 7464 ctsio->kern_data_ptr; 7465 num = 0; 7466 for (i = 0; i < 256; i++) { 7467 entry = &ctl_cmd_table[i]; 7468 if (entry->flags & CTL_CMD_FLAG_SA5) { 7469 for (j = 0; j < 32; j++) { 7470 sentry = &((const struct ctl_cmd_entry *) 7471 entry->execute)[j]; 7472 if (!ctl_cmd_applicable( 7473 lun->be_lun->lun_type, sentry)) 7474 continue; 7475 descr = &all->descr[num++]; 7476 descr->opcode = i; 7477 scsi_ulto2b(j, descr->service_action); 7478 descr->flags = RSO_SERVACTV; 7479 scsi_ulto2b(sentry->length, 7480 descr->cdb_length); 7481 } 7482 } else { 7483 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7484 entry)) 7485 continue; 7486 descr = &all->descr[num++]; 7487 descr->opcode = i; 7488 scsi_ulto2b(0, descr->service_action); 7489 descr->flags = 0; 7490 scsi_ulto2b(entry->length, descr->cdb_length); 7491 } 7492 } 7493 scsi_ulto4b( 7494 num * sizeof(struct scsi_report_supported_opcodes_descr), 7495 all->length); 7496 break; 7497 case RSO_OPTIONS_OC: 7498 one = (struct scsi_report_supported_opcodes_one *) 7499 ctsio->kern_data_ptr; 7500 entry = &ctl_cmd_table[opcode]; 7501 goto fill_one; 7502 case RSO_OPTIONS_OC_SA: 7503 one = (struct scsi_report_supported_opcodes_one *) 7504 ctsio->kern_data_ptr; 7505 entry = &ctl_cmd_table[opcode]; 7506 entry = &((const struct ctl_cmd_entry *) 7507 entry->execute)[service_action]; 7508fill_one: 7509 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7510 one->support = 3; 7511 scsi_ulto2b(entry->length, one->cdb_length); 7512 one->cdb_usage[0] = opcode; 7513 memcpy(&one->cdb_usage[1], entry->usage, 7514 entry->length - 1); 7515 } else 7516 one->support = 1; 7517 break; 7518 } 7519 7520 ctl_set_success(ctsio); 7521 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7522 ctsio->be_move_done = ctl_config_move_done; 7523 ctl_datamove((union ctl_io *)ctsio); 7524 return(retval); 7525} 7526 7527int 7528ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7529{ 7530 struct scsi_report_supported_tmf *cdb; 7531 struct scsi_report_supported_tmf_data *data; 7532 int retval; 7533 int alloc_len, total_len; 7534 7535 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7536 7537 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7538 7539 retval = CTL_RETVAL_COMPLETE; 7540 7541 total_len = sizeof(struct scsi_report_supported_tmf_data); 7542 alloc_len = scsi_4btoul(cdb->length); 7543 7544 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7545 7546 ctsio->kern_sg_entries = 0; 7547 7548 if (total_len < alloc_len) { 7549 ctsio->residual = alloc_len - total_len; 7550 ctsio->kern_data_len = total_len; 7551 ctsio->kern_total_len = total_len; 7552 } else { 7553 ctsio->residual = 0; 7554 ctsio->kern_data_len = alloc_len; 7555 ctsio->kern_total_len = alloc_len; 7556 } 7557 ctsio->kern_data_resid = 0; 7558 ctsio->kern_rel_offset = 0; 7559 7560 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7561 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_TRS; 7562 data->byte2 |= RST_ITNRS; 7563 7564 ctl_set_success(ctsio); 7565 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7566 ctsio->be_move_done = ctl_config_move_done; 7567 ctl_datamove((union ctl_io *)ctsio); 7568 return (retval); 7569} 7570 7571int 7572ctl_report_timestamp(struct ctl_scsiio *ctsio) 7573{ 7574 struct scsi_report_timestamp *cdb; 7575 struct scsi_report_timestamp_data *data; 7576 struct timeval tv; 7577 int64_t timestamp; 7578 int retval; 7579 int alloc_len, total_len; 7580 7581 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7582 7583 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7584 7585 retval = CTL_RETVAL_COMPLETE; 7586 7587 total_len = sizeof(struct scsi_report_timestamp_data); 7588 alloc_len = scsi_4btoul(cdb->length); 7589 7590 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7591 7592 ctsio->kern_sg_entries = 0; 7593 7594 if (total_len < alloc_len) { 7595 ctsio->residual = alloc_len - total_len; 7596 ctsio->kern_data_len = total_len; 7597 ctsio->kern_total_len = total_len; 7598 } else { 7599 ctsio->residual = 0; 7600 ctsio->kern_data_len = alloc_len; 7601 ctsio->kern_total_len = alloc_len; 7602 } 7603 ctsio->kern_data_resid = 0; 7604 ctsio->kern_rel_offset = 0; 7605 7606 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7607 scsi_ulto2b(sizeof(*data) - 2, data->length); 7608 data->origin = RTS_ORIG_OUTSIDE; 7609 getmicrotime(&tv); 7610 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7611 scsi_ulto4b(timestamp >> 16, data->timestamp); 7612 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7613 7614 ctl_set_success(ctsio); 7615 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7616 ctsio->be_move_done = ctl_config_move_done; 7617 ctl_datamove((union ctl_io *)ctsio); 7618 return (retval); 7619} 7620 7621int 7622ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7623{ 7624 struct scsi_per_res_in *cdb; 7625 int alloc_len, total_len = 0; 7626 /* struct scsi_per_res_in_rsrv in_data; */ 7627 struct ctl_lun *lun; 7628 struct ctl_softc *softc; 7629 uint64_t key; 7630 7631 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7632 7633 softc = control_softc; 7634 7635 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7636 7637 alloc_len = scsi_2btoul(cdb->length); 7638 7639 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7640 7641retry: 7642 mtx_lock(&lun->lun_lock); 7643 switch (cdb->action) { 7644 case SPRI_RK: /* read keys */ 7645 total_len = sizeof(struct scsi_per_res_in_keys) + 7646 lun->pr_key_count * 7647 sizeof(struct scsi_per_res_key); 7648 break; 7649 case SPRI_RR: /* read reservation */ 7650 if (lun->flags & CTL_LUN_PR_RESERVED) 7651 total_len = sizeof(struct scsi_per_res_in_rsrv); 7652 else 7653 total_len = sizeof(struct scsi_per_res_in_header); 7654 break; 7655 case SPRI_RC: /* report capabilities */ 7656 total_len = sizeof(struct scsi_per_res_cap); 7657 break; 7658 case SPRI_RS: /* read full status */ 7659 total_len = sizeof(struct scsi_per_res_in_header) + 7660 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7661 lun->pr_key_count; 7662 break; 7663 default: 7664 panic("Invalid PR type %x", cdb->action); 7665 } 7666 mtx_unlock(&lun->lun_lock); 7667 7668 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7669 7670 if (total_len < alloc_len) { 7671 ctsio->residual = alloc_len - total_len; 7672 ctsio->kern_data_len = total_len; 7673 ctsio->kern_total_len = total_len; 7674 } else { 7675 ctsio->residual = 0; 7676 ctsio->kern_data_len = alloc_len; 7677 ctsio->kern_total_len = alloc_len; 7678 } 7679 7680 ctsio->kern_data_resid = 0; 7681 ctsio->kern_rel_offset = 0; 7682 ctsio->kern_sg_entries = 0; 7683 7684 mtx_lock(&lun->lun_lock); 7685 switch (cdb->action) { 7686 case SPRI_RK: { // read keys 7687 struct scsi_per_res_in_keys *res_keys; 7688 int i, key_count; 7689 7690 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7691 7692 /* 7693 * We had to drop the lock to allocate our buffer, which 7694 * leaves time for someone to come in with another 7695 * persistent reservation. (That is unlikely, though, 7696 * since this should be the only persistent reservation 7697 * command active right now.) 7698 */ 7699 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7700 (lun->pr_key_count * 7701 sizeof(struct scsi_per_res_key)))){ 7702 mtx_unlock(&lun->lun_lock); 7703 free(ctsio->kern_data_ptr, M_CTL); 7704 printf("%s: reservation length changed, retrying\n", 7705 __func__); 7706 goto retry; 7707 } 7708 7709 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7710 7711 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7712 lun->pr_key_count, res_keys->header.length); 7713 7714 for (i = 0, key_count = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7715 if ((key = ctl_get_prkey(lun, i)) == 0) 7716 continue; 7717 7718 /* 7719 * We used lun->pr_key_count to calculate the 7720 * size to allocate. If it turns out the number of 7721 * initiators with the registered flag set is 7722 * larger than that (i.e. they haven't been kept in 7723 * sync), we've got a problem. 7724 */ 7725 if (key_count >= lun->pr_key_count) { 7726#ifdef NEEDTOPORT 7727 csevent_log(CSC_CTL | CSC_SHELF_SW | 7728 CTL_PR_ERROR, 7729 csevent_LogType_Fault, 7730 csevent_AlertLevel_Yellow, 7731 csevent_FRU_ShelfController, 7732 csevent_FRU_Firmware, 7733 csevent_FRU_Unknown, 7734 "registered keys %d >= key " 7735 "count %d", key_count, 7736 lun->pr_key_count); 7737#endif 7738 key_count++; 7739 continue; 7740 } 7741 scsi_u64to8b(key, res_keys->keys[key_count].key); 7742 key_count++; 7743 } 7744 break; 7745 } 7746 case SPRI_RR: { // read reservation 7747 struct scsi_per_res_in_rsrv *res; 7748 int tmp_len, header_only; 7749 7750 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7751 7752 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7753 7754 if (lun->flags & CTL_LUN_PR_RESERVED) 7755 { 7756 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7757 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7758 res->header.length); 7759 header_only = 0; 7760 } else { 7761 tmp_len = sizeof(struct scsi_per_res_in_header); 7762 scsi_ulto4b(0, res->header.length); 7763 header_only = 1; 7764 } 7765 7766 /* 7767 * We had to drop the lock to allocate our buffer, which 7768 * leaves time for someone to come in with another 7769 * persistent reservation. (That is unlikely, though, 7770 * since this should be the only persistent reservation 7771 * command active right now.) 7772 */ 7773 if (tmp_len != total_len) { 7774 mtx_unlock(&lun->lun_lock); 7775 free(ctsio->kern_data_ptr, M_CTL); 7776 printf("%s: reservation status changed, retrying\n", 7777 __func__); 7778 goto retry; 7779 } 7780 7781 /* 7782 * No reservation held, so we're done. 7783 */ 7784 if (header_only != 0) 7785 break; 7786 7787 /* 7788 * If the registration is an All Registrants type, the key 7789 * is 0, since it doesn't really matter. 7790 */ 7791 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7792 scsi_u64to8b(ctl_get_prkey(lun, lun->pr_res_idx), 7793 res->data.reservation); 7794 } 7795 res->data.scopetype = lun->res_type; 7796 break; 7797 } 7798 case SPRI_RC: //report capabilities 7799 { 7800 struct scsi_per_res_cap *res_cap; 7801 uint16_t type_mask; 7802 7803 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7804 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7805 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_5; 7806 type_mask = SPRI_TM_WR_EX_AR | 7807 SPRI_TM_EX_AC_RO | 7808 SPRI_TM_WR_EX_RO | 7809 SPRI_TM_EX_AC | 7810 SPRI_TM_WR_EX | 7811 SPRI_TM_EX_AC_AR; 7812 scsi_ulto2b(type_mask, res_cap->type_mask); 7813 break; 7814 } 7815 case SPRI_RS: { // read full status 7816 struct scsi_per_res_in_full *res_status; 7817 struct scsi_per_res_in_full_desc *res_desc; 7818 struct ctl_port *port; 7819 int i, len; 7820 7821 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7822 7823 /* 7824 * We had to drop the lock to allocate our buffer, which 7825 * leaves time for someone to come in with another 7826 * persistent reservation. (That is unlikely, though, 7827 * since this should be the only persistent reservation 7828 * command active right now.) 7829 */ 7830 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7831 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7832 lun->pr_key_count)){ 7833 mtx_unlock(&lun->lun_lock); 7834 free(ctsio->kern_data_ptr, M_CTL); 7835 printf("%s: reservation length changed, retrying\n", 7836 __func__); 7837 goto retry; 7838 } 7839 7840 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 7841 7842 res_desc = &res_status->desc[0]; 7843 for (i = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7844 if ((key = ctl_get_prkey(lun, i)) == 0) 7845 continue; 7846 7847 scsi_u64to8b(key, res_desc->res_key.key); 7848 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7849 (lun->pr_res_idx == i || 7850 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7851 res_desc->flags = SPRI_FULL_R_HOLDER; 7852 res_desc->scopetype = lun->res_type; 7853 } 7854 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7855 res_desc->rel_trgt_port_id); 7856 len = 0; 7857 port = softc->ctl_ports[ 7858 ctl_port_idx(i / CTL_MAX_INIT_PER_PORT)]; 7859 if (port != NULL) 7860 len = ctl_create_iid(port, 7861 i % CTL_MAX_INIT_PER_PORT, 7862 res_desc->transport_id); 7863 scsi_ulto4b(len, res_desc->additional_length); 7864 res_desc = (struct scsi_per_res_in_full_desc *) 7865 &res_desc->transport_id[len]; 7866 } 7867 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7868 res_status->header.length); 7869 break; 7870 } 7871 default: 7872 /* 7873 * This is a bug, because we just checked for this above, 7874 * and should have returned an error. 7875 */ 7876 panic("Invalid PR type %x", cdb->action); 7877 break; /* NOTREACHED */ 7878 } 7879 mtx_unlock(&lun->lun_lock); 7880 7881 ctl_set_success(ctsio); 7882 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7883 ctsio->be_move_done = ctl_config_move_done; 7884 ctl_datamove((union ctl_io *)ctsio); 7885 return (CTL_RETVAL_COMPLETE); 7886} 7887 7888static void 7889ctl_set_res_ua(struct ctl_lun *lun, uint32_t residx, ctl_ua_type ua) 7890{ 7891 int off = lun->ctl_softc->persis_offset; 7892 7893 if (residx >= off && residx < off + CTL_MAX_INITIATORS) 7894 lun->pending_ua[residx - off] |= ua; 7895} 7896 7897/* 7898 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7899 * it should return. 7900 */ 7901static int 7902ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7903 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7904 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7905 struct scsi_per_res_out_parms* param) 7906{ 7907 union ctl_ha_msg persis_io; 7908 int retval, i; 7909 int isc_retval; 7910 7911 retval = 0; 7912 7913 mtx_lock(&lun->lun_lock); 7914 if (sa_res_key == 0) { 7915 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7916 /* validate scope and type */ 7917 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7918 SPR_LU_SCOPE) { 7919 mtx_unlock(&lun->lun_lock); 7920 ctl_set_invalid_field(/*ctsio*/ ctsio, 7921 /*sks_valid*/ 1, 7922 /*command*/ 1, 7923 /*field*/ 2, 7924 /*bit_valid*/ 1, 7925 /*bit*/ 4); 7926 ctl_done((union ctl_io *)ctsio); 7927 return (1); 7928 } 7929 7930 if (type>8 || type==2 || type==4 || type==0) { 7931 mtx_unlock(&lun->lun_lock); 7932 ctl_set_invalid_field(/*ctsio*/ ctsio, 7933 /*sks_valid*/ 1, 7934 /*command*/ 1, 7935 /*field*/ 2, 7936 /*bit_valid*/ 1, 7937 /*bit*/ 0); 7938 ctl_done((union ctl_io *)ctsio); 7939 return (1); 7940 } 7941 7942 /* 7943 * Unregister everybody else and build UA for 7944 * them 7945 */ 7946 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 7947 if (i == residx || ctl_get_prkey(lun, i) == 0) 7948 continue; 7949 7950 ctl_clr_prkey(lun, i); 7951 ctl_set_res_ua(lun, i, CTL_UA_REG_PREEMPT); 7952 } 7953 lun->pr_key_count = 1; 7954 lun->res_type = type; 7955 if (lun->res_type != SPR_TYPE_WR_EX_AR 7956 && lun->res_type != SPR_TYPE_EX_AC_AR) 7957 lun->pr_res_idx = residx; 7958 7959 /* send msg to other side */ 7960 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7961 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7962 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7963 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7964 persis_io.pr.pr_info.res_type = type; 7965 memcpy(persis_io.pr.pr_info.sa_res_key, 7966 param->serv_act_res_key, 7967 sizeof(param->serv_act_res_key)); 7968 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 7969 &persis_io, sizeof(persis_io), 0)) > 7970 CTL_HA_STATUS_SUCCESS) { 7971 printf("CTL:Persis Out error returned " 7972 "from ctl_ha_msg_send %d\n", 7973 isc_retval); 7974 } 7975 } else { 7976 /* not all registrants */ 7977 mtx_unlock(&lun->lun_lock); 7978 free(ctsio->kern_data_ptr, M_CTL); 7979 ctl_set_invalid_field(ctsio, 7980 /*sks_valid*/ 1, 7981 /*command*/ 0, 7982 /*field*/ 8, 7983 /*bit_valid*/ 0, 7984 /*bit*/ 0); 7985 ctl_done((union ctl_io *)ctsio); 7986 return (1); 7987 } 7988 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 7989 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 7990 int found = 0; 7991 7992 if (res_key == sa_res_key) { 7993 /* special case */ 7994 /* 7995 * The spec implies this is not good but doesn't 7996 * say what to do. There are two choices either 7997 * generate a res conflict or check condition 7998 * with illegal field in parameter data. Since 7999 * that is what is done when the sa_res_key is 8000 * zero I'll take that approach since this has 8001 * to do with the sa_res_key. 8002 */ 8003 mtx_unlock(&lun->lun_lock); 8004 free(ctsio->kern_data_ptr, M_CTL); 8005 ctl_set_invalid_field(ctsio, 8006 /*sks_valid*/ 1, 8007 /*command*/ 0, 8008 /*field*/ 8, 8009 /*bit_valid*/ 0, 8010 /*bit*/ 0); 8011 ctl_done((union ctl_io *)ctsio); 8012 return (1); 8013 } 8014 8015 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8016 if (ctl_get_prkey(lun, i) != sa_res_key) 8017 continue; 8018 8019 found = 1; 8020 ctl_clr_prkey(lun, i); 8021 lun->pr_key_count--; 8022 ctl_set_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8023 } 8024 if (!found) { 8025 mtx_unlock(&lun->lun_lock); 8026 free(ctsio->kern_data_ptr, M_CTL); 8027 ctl_set_reservation_conflict(ctsio); 8028 ctl_done((union ctl_io *)ctsio); 8029 return (CTL_RETVAL_COMPLETE); 8030 } 8031 /* send msg to other side */ 8032 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8033 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8034 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8035 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8036 persis_io.pr.pr_info.res_type = type; 8037 memcpy(persis_io.pr.pr_info.sa_res_key, 8038 param->serv_act_res_key, 8039 sizeof(param->serv_act_res_key)); 8040 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8041 &persis_io, sizeof(persis_io), 0)) > 8042 CTL_HA_STATUS_SUCCESS) { 8043 printf("CTL:Persis Out error returned from " 8044 "ctl_ha_msg_send %d\n", isc_retval); 8045 } 8046 } else { 8047 /* Reserved but not all registrants */ 8048 /* sa_res_key is res holder */ 8049 if (sa_res_key == ctl_get_prkey(lun, lun->pr_res_idx)) { 8050 /* validate scope and type */ 8051 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8052 SPR_LU_SCOPE) { 8053 mtx_unlock(&lun->lun_lock); 8054 ctl_set_invalid_field(/*ctsio*/ ctsio, 8055 /*sks_valid*/ 1, 8056 /*command*/ 1, 8057 /*field*/ 2, 8058 /*bit_valid*/ 1, 8059 /*bit*/ 4); 8060 ctl_done((union ctl_io *)ctsio); 8061 return (1); 8062 } 8063 8064 if (type>8 || type==2 || type==4 || type==0) { 8065 mtx_unlock(&lun->lun_lock); 8066 ctl_set_invalid_field(/*ctsio*/ ctsio, 8067 /*sks_valid*/ 1, 8068 /*command*/ 1, 8069 /*field*/ 2, 8070 /*bit_valid*/ 1, 8071 /*bit*/ 0); 8072 ctl_done((union ctl_io *)ctsio); 8073 return (1); 8074 } 8075 8076 /* 8077 * Do the following: 8078 * if sa_res_key != res_key remove all 8079 * registrants w/sa_res_key and generate UA 8080 * for these registrants(Registrations 8081 * Preempted) if it wasn't an exclusive 8082 * reservation generate UA(Reservations 8083 * Preempted) for all other registered nexuses 8084 * if the type has changed. Establish the new 8085 * reservation and holder. If res_key and 8086 * sa_res_key are the same do the above 8087 * except don't unregister the res holder. 8088 */ 8089 8090 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8091 if (i == residx || ctl_get_prkey(lun, i) == 0) 8092 continue; 8093 8094 if (sa_res_key == ctl_get_prkey(lun, i)) { 8095 ctl_clr_prkey(lun, i); 8096 lun->pr_key_count--; 8097 ctl_set_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8098 } else if (type != lun->res_type 8099 && (lun->res_type == SPR_TYPE_WR_EX_RO 8100 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 8101 ctl_set_res_ua(lun, i, CTL_UA_RES_RELEASE); 8102 } 8103 } 8104 lun->res_type = type; 8105 if (lun->res_type != SPR_TYPE_WR_EX_AR 8106 && lun->res_type != SPR_TYPE_EX_AC_AR) 8107 lun->pr_res_idx = residx; 8108 else 8109 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8110 8111 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8112 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8113 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8114 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8115 persis_io.pr.pr_info.res_type = type; 8116 memcpy(persis_io.pr.pr_info.sa_res_key, 8117 param->serv_act_res_key, 8118 sizeof(param->serv_act_res_key)); 8119 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8120 &persis_io, sizeof(persis_io), 0)) > 8121 CTL_HA_STATUS_SUCCESS) { 8122 printf("CTL:Persis Out error returned " 8123 "from ctl_ha_msg_send %d\n", 8124 isc_retval); 8125 } 8126 } else { 8127 /* 8128 * sa_res_key is not the res holder just 8129 * remove registrants 8130 */ 8131 int found=0; 8132 8133 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8134 if (sa_res_key != ctl_get_prkey(lun, i)) 8135 continue; 8136 8137 found = 1; 8138 ctl_clr_prkey(lun, i); 8139 lun->pr_key_count--; 8140 ctl_set_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8141 } 8142 8143 if (!found) { 8144 mtx_unlock(&lun->lun_lock); 8145 free(ctsio->kern_data_ptr, M_CTL); 8146 ctl_set_reservation_conflict(ctsio); 8147 ctl_done((union ctl_io *)ctsio); 8148 return (1); 8149 } 8150 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8151 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8152 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8153 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8154 persis_io.pr.pr_info.res_type = type; 8155 memcpy(persis_io.pr.pr_info.sa_res_key, 8156 param->serv_act_res_key, 8157 sizeof(param->serv_act_res_key)); 8158 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8159 &persis_io, sizeof(persis_io), 0)) > 8160 CTL_HA_STATUS_SUCCESS) { 8161 printf("CTL:Persis Out error returned " 8162 "from ctl_ha_msg_send %d\n", 8163 isc_retval); 8164 } 8165 } 8166 } 8167 8168 lun->PRGeneration++; 8169 mtx_unlock(&lun->lun_lock); 8170 8171 return (retval); 8172} 8173 8174static void 8175ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8176{ 8177 uint64_t sa_res_key; 8178 int i; 8179 8180 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8181 8182 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8183 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8184 || sa_res_key != ctl_get_prkey(lun, lun->pr_res_idx)) { 8185 if (sa_res_key == 0) { 8186 /* 8187 * Unregister everybody else and build UA for 8188 * them 8189 */ 8190 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8191 if (i == msg->pr.pr_info.residx || 8192 ctl_get_prkey(lun, i) == 0) 8193 continue; 8194 8195 ctl_clr_prkey(lun, i); 8196 ctl_set_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8197 } 8198 8199 lun->pr_key_count = 1; 8200 lun->res_type = msg->pr.pr_info.res_type; 8201 if (lun->res_type != SPR_TYPE_WR_EX_AR 8202 && lun->res_type != SPR_TYPE_EX_AC_AR) 8203 lun->pr_res_idx = msg->pr.pr_info.residx; 8204 } else { 8205 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8206 if (sa_res_key == ctl_get_prkey(lun, i)) 8207 continue; 8208 8209 ctl_clr_prkey(lun, i); 8210 lun->pr_key_count--; 8211 ctl_set_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8212 } 8213 } 8214 } else { 8215 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8216 if (i == msg->pr.pr_info.residx || 8217 ctl_get_prkey(lun, i) == 0) 8218 continue; 8219 8220 if (sa_res_key == ctl_get_prkey(lun, i)) { 8221 ctl_clr_prkey(lun, i); 8222 lun->pr_key_count--; 8223 ctl_set_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8224 } else if (msg->pr.pr_info.res_type != lun->res_type 8225 && (lun->res_type == SPR_TYPE_WR_EX_RO 8226 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8227 ctl_set_res_ua(lun, i, CTL_UA_RES_RELEASE); 8228 } 8229 } 8230 lun->res_type = msg->pr.pr_info.res_type; 8231 if (lun->res_type != SPR_TYPE_WR_EX_AR 8232 && lun->res_type != SPR_TYPE_EX_AC_AR) 8233 lun->pr_res_idx = msg->pr.pr_info.residx; 8234 else 8235 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8236 } 8237 lun->PRGeneration++; 8238 8239} 8240 8241 8242int 8243ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8244{ 8245 int retval; 8246 int isc_retval; 8247 u_int32_t param_len; 8248 struct scsi_per_res_out *cdb; 8249 struct ctl_lun *lun; 8250 struct scsi_per_res_out_parms* param; 8251 struct ctl_softc *softc; 8252 uint32_t residx; 8253 uint64_t res_key, sa_res_key, key; 8254 uint8_t type; 8255 union ctl_ha_msg persis_io; 8256 int i; 8257 8258 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8259 8260 retval = CTL_RETVAL_COMPLETE; 8261 8262 softc = control_softc; 8263 8264 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8265 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8266 8267 /* 8268 * We only support whole-LUN scope. The scope & type are ignored for 8269 * register, register and ignore existing key and clear. 8270 * We sometimes ignore scope and type on preempts too!! 8271 * Verify reservation type here as well. 8272 */ 8273 type = cdb->scope_type & SPR_TYPE_MASK; 8274 if ((cdb->action == SPRO_RESERVE) 8275 || (cdb->action == SPRO_RELEASE)) { 8276 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8277 ctl_set_invalid_field(/*ctsio*/ ctsio, 8278 /*sks_valid*/ 1, 8279 /*command*/ 1, 8280 /*field*/ 2, 8281 /*bit_valid*/ 1, 8282 /*bit*/ 4); 8283 ctl_done((union ctl_io *)ctsio); 8284 return (CTL_RETVAL_COMPLETE); 8285 } 8286 8287 if (type>8 || type==2 || type==4 || type==0) { 8288 ctl_set_invalid_field(/*ctsio*/ ctsio, 8289 /*sks_valid*/ 1, 8290 /*command*/ 1, 8291 /*field*/ 2, 8292 /*bit_valid*/ 1, 8293 /*bit*/ 0); 8294 ctl_done((union ctl_io *)ctsio); 8295 return (CTL_RETVAL_COMPLETE); 8296 } 8297 } 8298 8299 param_len = scsi_4btoul(cdb->length); 8300 8301 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8302 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8303 ctsio->kern_data_len = param_len; 8304 ctsio->kern_total_len = param_len; 8305 ctsio->kern_data_resid = 0; 8306 ctsio->kern_rel_offset = 0; 8307 ctsio->kern_sg_entries = 0; 8308 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8309 ctsio->be_move_done = ctl_config_move_done; 8310 ctl_datamove((union ctl_io *)ctsio); 8311 8312 return (CTL_RETVAL_COMPLETE); 8313 } 8314 8315 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8316 8317 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8318 res_key = scsi_8btou64(param->res_key.key); 8319 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8320 8321 /* 8322 * Validate the reservation key here except for SPRO_REG_IGNO 8323 * This must be done for all other service actions 8324 */ 8325 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8326 mtx_lock(&lun->lun_lock); 8327 if ((key = ctl_get_prkey(lun, residx)) != 0) { 8328 if (res_key != key) { 8329 /* 8330 * The current key passed in doesn't match 8331 * the one the initiator previously 8332 * registered. 8333 */ 8334 mtx_unlock(&lun->lun_lock); 8335 free(ctsio->kern_data_ptr, M_CTL); 8336 ctl_set_reservation_conflict(ctsio); 8337 ctl_done((union ctl_io *)ctsio); 8338 return (CTL_RETVAL_COMPLETE); 8339 } 8340 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8341 /* 8342 * We are not registered 8343 */ 8344 mtx_unlock(&lun->lun_lock); 8345 free(ctsio->kern_data_ptr, M_CTL); 8346 ctl_set_reservation_conflict(ctsio); 8347 ctl_done((union ctl_io *)ctsio); 8348 return (CTL_RETVAL_COMPLETE); 8349 } else if (res_key != 0) { 8350 /* 8351 * We are not registered and trying to register but 8352 * the register key isn't zero. 8353 */ 8354 mtx_unlock(&lun->lun_lock); 8355 free(ctsio->kern_data_ptr, M_CTL); 8356 ctl_set_reservation_conflict(ctsio); 8357 ctl_done((union ctl_io *)ctsio); 8358 return (CTL_RETVAL_COMPLETE); 8359 } 8360 mtx_unlock(&lun->lun_lock); 8361 } 8362 8363 switch (cdb->action & SPRO_ACTION_MASK) { 8364 case SPRO_REGISTER: 8365 case SPRO_REG_IGNO: { 8366 8367#if 0 8368 printf("Registration received\n"); 8369#endif 8370 8371 /* 8372 * We don't support any of these options, as we report in 8373 * the read capabilities request (see 8374 * ctl_persistent_reserve_in(), above). 8375 */ 8376 if ((param->flags & SPR_SPEC_I_PT) 8377 || (param->flags & SPR_ALL_TG_PT) 8378 || (param->flags & SPR_APTPL)) { 8379 int bit_ptr; 8380 8381 if (param->flags & SPR_APTPL) 8382 bit_ptr = 0; 8383 else if (param->flags & SPR_ALL_TG_PT) 8384 bit_ptr = 2; 8385 else /* SPR_SPEC_I_PT */ 8386 bit_ptr = 3; 8387 8388 free(ctsio->kern_data_ptr, M_CTL); 8389 ctl_set_invalid_field(ctsio, 8390 /*sks_valid*/ 1, 8391 /*command*/ 0, 8392 /*field*/ 20, 8393 /*bit_valid*/ 1, 8394 /*bit*/ bit_ptr); 8395 ctl_done((union ctl_io *)ctsio); 8396 return (CTL_RETVAL_COMPLETE); 8397 } 8398 8399 mtx_lock(&lun->lun_lock); 8400 8401 /* 8402 * The initiator wants to clear the 8403 * key/unregister. 8404 */ 8405 if (sa_res_key == 0) { 8406 if ((res_key == 0 8407 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8408 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8409 && ctl_get_prkey(lun, residx) == 0)) { 8410 mtx_unlock(&lun->lun_lock); 8411 goto done; 8412 } 8413 8414 ctl_clr_prkey(lun, residx); 8415 lun->pr_key_count--; 8416 8417 if (residx == lun->pr_res_idx) { 8418 lun->flags &= ~CTL_LUN_PR_RESERVED; 8419 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8420 8421 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8422 || lun->res_type == SPR_TYPE_EX_AC_RO) 8423 && lun->pr_key_count) { 8424 /* 8425 * If the reservation is a registrants 8426 * only type we need to generate a UA 8427 * for other registered inits. The 8428 * sense code should be RESERVATIONS 8429 * RELEASED 8430 */ 8431 8432 for (i = 0; i < CTL_MAX_INITIATORS;i++){ 8433 if (ctl_get_prkey(lun, i + 8434 softc->persis_offset) == 0) 8435 continue; 8436 lun->pending_ua[i] |= 8437 CTL_UA_RES_RELEASE; 8438 } 8439 } 8440 lun->res_type = 0; 8441 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8442 if (lun->pr_key_count==0) { 8443 lun->flags &= ~CTL_LUN_PR_RESERVED; 8444 lun->res_type = 0; 8445 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8446 } 8447 } 8448 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8449 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8450 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8451 persis_io.pr.pr_info.residx = residx; 8452 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8453 &persis_io, sizeof(persis_io), 0 )) > 8454 CTL_HA_STATUS_SUCCESS) { 8455 printf("CTL:Persis Out error returned from " 8456 "ctl_ha_msg_send %d\n", isc_retval); 8457 } 8458 } else /* sa_res_key != 0 */ { 8459 8460 /* 8461 * If we aren't registered currently then increment 8462 * the key count and set the registered flag. 8463 */ 8464 ctl_alloc_prkey(lun, residx); 8465 if (ctl_get_prkey(lun, residx) == 0) 8466 lun->pr_key_count++; 8467 ctl_set_prkey(lun, residx, sa_res_key); 8468 8469 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8470 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8471 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8472 persis_io.pr.pr_info.residx = residx; 8473 memcpy(persis_io.pr.pr_info.sa_res_key, 8474 param->serv_act_res_key, 8475 sizeof(param->serv_act_res_key)); 8476 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8477 &persis_io, sizeof(persis_io), 0)) > 8478 CTL_HA_STATUS_SUCCESS) { 8479 printf("CTL:Persis Out error returned from " 8480 "ctl_ha_msg_send %d\n", isc_retval); 8481 } 8482 } 8483 lun->PRGeneration++; 8484 mtx_unlock(&lun->lun_lock); 8485 8486 break; 8487 } 8488 case SPRO_RESERVE: 8489#if 0 8490 printf("Reserve executed type %d\n", type); 8491#endif 8492 mtx_lock(&lun->lun_lock); 8493 if (lun->flags & CTL_LUN_PR_RESERVED) { 8494 /* 8495 * if this isn't the reservation holder and it's 8496 * not a "all registrants" type or if the type is 8497 * different then we have a conflict 8498 */ 8499 if ((lun->pr_res_idx != residx 8500 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8501 || lun->res_type != type) { 8502 mtx_unlock(&lun->lun_lock); 8503 free(ctsio->kern_data_ptr, M_CTL); 8504 ctl_set_reservation_conflict(ctsio); 8505 ctl_done((union ctl_io *)ctsio); 8506 return (CTL_RETVAL_COMPLETE); 8507 } 8508 mtx_unlock(&lun->lun_lock); 8509 } else /* create a reservation */ { 8510 /* 8511 * If it's not an "all registrants" type record 8512 * reservation holder 8513 */ 8514 if (type != SPR_TYPE_WR_EX_AR 8515 && type != SPR_TYPE_EX_AC_AR) 8516 lun->pr_res_idx = residx; /* Res holder */ 8517 else 8518 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8519 8520 lun->flags |= CTL_LUN_PR_RESERVED; 8521 lun->res_type = type; 8522 8523 mtx_unlock(&lun->lun_lock); 8524 8525 /* send msg to other side */ 8526 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8527 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8528 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8529 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8530 persis_io.pr.pr_info.res_type = type; 8531 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8532 &persis_io, sizeof(persis_io), 0)) > 8533 CTL_HA_STATUS_SUCCESS) { 8534 printf("CTL:Persis Out error returned from " 8535 "ctl_ha_msg_send %d\n", isc_retval); 8536 } 8537 } 8538 break; 8539 8540 case SPRO_RELEASE: 8541 mtx_lock(&lun->lun_lock); 8542 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8543 /* No reservation exists return good status */ 8544 mtx_unlock(&lun->lun_lock); 8545 goto done; 8546 } 8547 /* 8548 * Is this nexus a reservation holder? 8549 */ 8550 if (lun->pr_res_idx != residx 8551 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8552 /* 8553 * not a res holder return good status but 8554 * do nothing 8555 */ 8556 mtx_unlock(&lun->lun_lock); 8557 goto done; 8558 } 8559 8560 if (lun->res_type != type) { 8561 mtx_unlock(&lun->lun_lock); 8562 free(ctsio->kern_data_ptr, M_CTL); 8563 ctl_set_illegal_pr_release(ctsio); 8564 ctl_done((union ctl_io *)ctsio); 8565 return (CTL_RETVAL_COMPLETE); 8566 } 8567 8568 /* okay to release */ 8569 lun->flags &= ~CTL_LUN_PR_RESERVED; 8570 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8571 lun->res_type = 0; 8572 8573 /* 8574 * if this isn't an exclusive access 8575 * res generate UA for all other 8576 * registrants. 8577 */ 8578 if (type != SPR_TYPE_EX_AC 8579 && type != SPR_TYPE_WR_EX) { 8580 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8581 if (i == residx || 8582 ctl_get_prkey(lun, 8583 i + softc->persis_offset) == 0) 8584 continue; 8585 lun->pending_ua[i] |= CTL_UA_RES_RELEASE; 8586 } 8587 } 8588 mtx_unlock(&lun->lun_lock); 8589 /* Send msg to other side */ 8590 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8591 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8592 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8593 if ((isc_retval=ctl_ha_msg_send( CTL_HA_CHAN_CTL, &persis_io, 8594 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8595 printf("CTL:Persis Out error returned from " 8596 "ctl_ha_msg_send %d\n", isc_retval); 8597 } 8598 break; 8599 8600 case SPRO_CLEAR: 8601 /* send msg to other side */ 8602 8603 mtx_lock(&lun->lun_lock); 8604 lun->flags &= ~CTL_LUN_PR_RESERVED; 8605 lun->res_type = 0; 8606 lun->pr_key_count = 0; 8607 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8608 8609 ctl_clr_prkey(lun, residx); 8610 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) 8611 if (ctl_get_prkey(lun, i) != 0) { 8612 ctl_clr_prkey(lun, i); 8613 ctl_set_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8614 } 8615 lun->PRGeneration++; 8616 mtx_unlock(&lun->lun_lock); 8617 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8618 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8619 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8620 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8621 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8622 printf("CTL:Persis Out error returned from " 8623 "ctl_ha_msg_send %d\n", isc_retval); 8624 } 8625 break; 8626 8627 case SPRO_PREEMPT: 8628 case SPRO_PRE_ABO: { 8629 int nretval; 8630 8631 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8632 residx, ctsio, cdb, param); 8633 if (nretval != 0) 8634 return (CTL_RETVAL_COMPLETE); 8635 break; 8636 } 8637 default: 8638 panic("Invalid PR type %x", cdb->action); 8639 } 8640 8641done: 8642 free(ctsio->kern_data_ptr, M_CTL); 8643 ctl_set_success(ctsio); 8644 ctl_done((union ctl_io *)ctsio); 8645 8646 return (retval); 8647} 8648 8649/* 8650 * This routine is for handling a message from the other SC pertaining to 8651 * persistent reserve out. All the error checking will have been done 8652 * so only perorming the action need be done here to keep the two 8653 * in sync. 8654 */ 8655static void 8656ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8657{ 8658 struct ctl_lun *lun; 8659 struct ctl_softc *softc; 8660 int i; 8661 uint32_t targ_lun; 8662 8663 softc = control_softc; 8664 8665 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8666 lun = softc->ctl_luns[targ_lun]; 8667 mtx_lock(&lun->lun_lock); 8668 switch(msg->pr.pr_info.action) { 8669 case CTL_PR_REG_KEY: 8670 ctl_alloc_prkey(lun, msg->pr.pr_info.residx); 8671 if (ctl_get_prkey(lun, msg->pr.pr_info.residx) == 0) 8672 lun->pr_key_count++; 8673 ctl_set_prkey(lun, msg->pr.pr_info.residx, 8674 scsi_8btou64(msg->pr.pr_info.sa_res_key)); 8675 lun->PRGeneration++; 8676 break; 8677 8678 case CTL_PR_UNREG_KEY: 8679 ctl_clr_prkey(lun, msg->pr.pr_info.residx); 8680 lun->pr_key_count--; 8681 8682 /* XXX Need to see if the reservation has been released */ 8683 /* if so do we need to generate UA? */ 8684 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8685 lun->flags &= ~CTL_LUN_PR_RESERVED; 8686 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8687 8688 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8689 || lun->res_type == SPR_TYPE_EX_AC_RO) 8690 && lun->pr_key_count) { 8691 /* 8692 * If the reservation is a registrants 8693 * only type we need to generate a UA 8694 * for other registered inits. The 8695 * sense code should be RESERVATIONS 8696 * RELEASED 8697 */ 8698 8699 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8700 if (ctl_get_prkey(lun, i + 8701 softc->persis_offset) == 0) 8702 continue; 8703 8704 lun->pending_ua[i] |= 8705 CTL_UA_RES_RELEASE; 8706 } 8707 } 8708 lun->res_type = 0; 8709 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8710 if (lun->pr_key_count==0) { 8711 lun->flags &= ~CTL_LUN_PR_RESERVED; 8712 lun->res_type = 0; 8713 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8714 } 8715 } 8716 lun->PRGeneration++; 8717 break; 8718 8719 case CTL_PR_RESERVE: 8720 lun->flags |= CTL_LUN_PR_RESERVED; 8721 lun->res_type = msg->pr.pr_info.res_type; 8722 lun->pr_res_idx = msg->pr.pr_info.residx; 8723 8724 break; 8725 8726 case CTL_PR_RELEASE: 8727 /* 8728 * if this isn't an exclusive access res generate UA for all 8729 * other registrants. 8730 */ 8731 if (lun->res_type != SPR_TYPE_EX_AC 8732 && lun->res_type != SPR_TYPE_WR_EX) { 8733 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8734 if (ctl_get_prkey(lun, i + softc->persis_offset) != 0) 8735 lun->pending_ua[i] |= 8736 CTL_UA_RES_RELEASE; 8737 } 8738 8739 lun->flags &= ~CTL_LUN_PR_RESERVED; 8740 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8741 lun->res_type = 0; 8742 break; 8743 8744 case CTL_PR_PREEMPT: 8745 ctl_pro_preempt_other(lun, msg); 8746 break; 8747 case CTL_PR_CLEAR: 8748 lun->flags &= ~CTL_LUN_PR_RESERVED; 8749 lun->res_type = 0; 8750 lun->pr_key_count = 0; 8751 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8752 8753 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8754 if (ctl_get_prkey(lun, i) == 0) 8755 continue; 8756 ctl_clr_prkey(lun, i); 8757 ctl_set_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8758 } 8759 lun->PRGeneration++; 8760 break; 8761 } 8762 8763 mtx_unlock(&lun->lun_lock); 8764} 8765 8766int 8767ctl_read_write(struct ctl_scsiio *ctsio) 8768{ 8769 struct ctl_lun *lun; 8770 struct ctl_lba_len_flags *lbalen; 8771 uint64_t lba; 8772 uint32_t num_blocks; 8773 int flags, retval; 8774 int isread; 8775 8776 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8777 8778 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8779 8780 flags = 0; 8781 retval = CTL_RETVAL_COMPLETE; 8782 8783 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8784 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8785 switch (ctsio->cdb[0]) { 8786 case READ_6: 8787 case WRITE_6: { 8788 struct scsi_rw_6 *cdb; 8789 8790 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8791 8792 lba = scsi_3btoul(cdb->addr); 8793 /* only 5 bits are valid in the most significant address byte */ 8794 lba &= 0x1fffff; 8795 num_blocks = cdb->length; 8796 /* 8797 * This is correct according to SBC-2. 8798 */ 8799 if (num_blocks == 0) 8800 num_blocks = 256; 8801 break; 8802 } 8803 case READ_10: 8804 case WRITE_10: { 8805 struct scsi_rw_10 *cdb; 8806 8807 cdb = (struct scsi_rw_10 *)ctsio->cdb; 8808 if (cdb->byte2 & SRW10_FUA) 8809 flags |= CTL_LLF_FUA; 8810 if (cdb->byte2 & SRW10_DPO) 8811 flags |= CTL_LLF_DPO; 8812 lba = scsi_4btoul(cdb->addr); 8813 num_blocks = scsi_2btoul(cdb->length); 8814 break; 8815 } 8816 case WRITE_VERIFY_10: { 8817 struct scsi_write_verify_10 *cdb; 8818 8819 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 8820 flags |= CTL_LLF_FUA; 8821 if (cdb->byte2 & SWV_DPO) 8822 flags |= CTL_LLF_DPO; 8823 lba = scsi_4btoul(cdb->addr); 8824 num_blocks = scsi_2btoul(cdb->length); 8825 break; 8826 } 8827 case READ_12: 8828 case WRITE_12: { 8829 struct scsi_rw_12 *cdb; 8830 8831 cdb = (struct scsi_rw_12 *)ctsio->cdb; 8832 if (cdb->byte2 & SRW12_FUA) 8833 flags |= CTL_LLF_FUA; 8834 if (cdb->byte2 & SRW12_DPO) 8835 flags |= CTL_LLF_DPO; 8836 lba = scsi_4btoul(cdb->addr); 8837 num_blocks = scsi_4btoul(cdb->length); 8838 break; 8839 } 8840 case WRITE_VERIFY_12: { 8841 struct scsi_write_verify_12 *cdb; 8842 8843 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 8844 flags |= CTL_LLF_FUA; 8845 if (cdb->byte2 & SWV_DPO) 8846 flags |= CTL_LLF_DPO; 8847 lba = scsi_4btoul(cdb->addr); 8848 num_blocks = scsi_4btoul(cdb->length); 8849 break; 8850 } 8851 case READ_16: 8852 case WRITE_16: { 8853 struct scsi_rw_16 *cdb; 8854 8855 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8856 if (cdb->byte2 & SRW12_FUA) 8857 flags |= CTL_LLF_FUA; 8858 if (cdb->byte2 & SRW12_DPO) 8859 flags |= CTL_LLF_DPO; 8860 lba = scsi_8btou64(cdb->addr); 8861 num_blocks = scsi_4btoul(cdb->length); 8862 break; 8863 } 8864 case WRITE_ATOMIC_16: { 8865 struct scsi_rw_16 *cdb; 8866 8867 if (lun->be_lun->atomicblock == 0) { 8868 ctl_set_invalid_opcode(ctsio); 8869 ctl_done((union ctl_io *)ctsio); 8870 return (CTL_RETVAL_COMPLETE); 8871 } 8872 8873 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8874 if (cdb->byte2 & SRW12_FUA) 8875 flags |= CTL_LLF_FUA; 8876 if (cdb->byte2 & SRW12_DPO) 8877 flags |= CTL_LLF_DPO; 8878 lba = scsi_8btou64(cdb->addr); 8879 num_blocks = scsi_4btoul(cdb->length); 8880 if (num_blocks > lun->be_lun->atomicblock) { 8881 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 8882 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 8883 /*bit*/ 0); 8884 ctl_done((union ctl_io *)ctsio); 8885 return (CTL_RETVAL_COMPLETE); 8886 } 8887 break; 8888 } 8889 case WRITE_VERIFY_16: { 8890 struct scsi_write_verify_16 *cdb; 8891 8892 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 8893 flags |= CTL_LLF_FUA; 8894 if (cdb->byte2 & SWV_DPO) 8895 flags |= CTL_LLF_DPO; 8896 lba = scsi_8btou64(cdb->addr); 8897 num_blocks = scsi_4btoul(cdb->length); 8898 break; 8899 } 8900 default: 8901 /* 8902 * We got a command we don't support. This shouldn't 8903 * happen, commands should be filtered out above us. 8904 */ 8905 ctl_set_invalid_opcode(ctsio); 8906 ctl_done((union ctl_io *)ctsio); 8907 8908 return (CTL_RETVAL_COMPLETE); 8909 break; /* NOTREACHED */ 8910 } 8911 8912 /* 8913 * The first check is to make sure we're in bounds, the second 8914 * check is to catch wrap-around problems. If the lba + num blocks 8915 * is less than the lba, then we've wrapped around and the block 8916 * range is invalid anyway. 8917 */ 8918 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8919 || ((lba + num_blocks) < lba)) { 8920 ctl_set_lba_out_of_range(ctsio); 8921 ctl_done((union ctl_io *)ctsio); 8922 return (CTL_RETVAL_COMPLETE); 8923 } 8924 8925 /* 8926 * According to SBC-3, a transfer length of 0 is not an error. 8927 * Note that this cannot happen with WRITE(6) or READ(6), since 0 8928 * translates to 256 blocks for those commands. 8929 */ 8930 if (num_blocks == 0) { 8931 ctl_set_success(ctsio); 8932 ctl_done((union ctl_io *)ctsio); 8933 return (CTL_RETVAL_COMPLETE); 8934 } 8935 8936 /* Set FUA and/or DPO if caches are disabled. */ 8937 if (isread) { 8938 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 8939 SCP_RCD) != 0) 8940 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 8941 } else { 8942 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 8943 SCP_WCE) == 0) 8944 flags |= CTL_LLF_FUA; 8945 } 8946 8947 lbalen = (struct ctl_lba_len_flags *) 8948 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8949 lbalen->lba = lba; 8950 lbalen->len = num_blocks; 8951 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 8952 8953 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 8954 ctsio->kern_rel_offset = 0; 8955 8956 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 8957 8958 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8959 8960 return (retval); 8961} 8962 8963static int 8964ctl_cnw_cont(union ctl_io *io) 8965{ 8966 struct ctl_scsiio *ctsio; 8967 struct ctl_lun *lun; 8968 struct ctl_lba_len_flags *lbalen; 8969 int retval; 8970 8971 ctsio = &io->scsiio; 8972 ctsio->io_hdr.status = CTL_STATUS_NONE; 8973 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 8974 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8975 lbalen = (struct ctl_lba_len_flags *) 8976 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8977 lbalen->flags &= ~CTL_LLF_COMPARE; 8978 lbalen->flags |= CTL_LLF_WRITE; 8979 8980 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 8981 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8982 return (retval); 8983} 8984 8985int 8986ctl_cnw(struct ctl_scsiio *ctsio) 8987{ 8988 struct ctl_lun *lun; 8989 struct ctl_lba_len_flags *lbalen; 8990 uint64_t lba; 8991 uint32_t num_blocks; 8992 int flags, retval; 8993 8994 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8995 8996 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 8997 8998 flags = 0; 8999 retval = CTL_RETVAL_COMPLETE; 9000 9001 switch (ctsio->cdb[0]) { 9002 case COMPARE_AND_WRITE: { 9003 struct scsi_compare_and_write *cdb; 9004 9005 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 9006 if (cdb->byte2 & SRW10_FUA) 9007 flags |= CTL_LLF_FUA; 9008 if (cdb->byte2 & SRW10_DPO) 9009 flags |= CTL_LLF_DPO; 9010 lba = scsi_8btou64(cdb->addr); 9011 num_blocks = cdb->length; 9012 break; 9013 } 9014 default: 9015 /* 9016 * We got a command we don't support. This shouldn't 9017 * happen, commands should be filtered out above us. 9018 */ 9019 ctl_set_invalid_opcode(ctsio); 9020 ctl_done((union ctl_io *)ctsio); 9021 9022 return (CTL_RETVAL_COMPLETE); 9023 break; /* NOTREACHED */ 9024 } 9025 9026 /* 9027 * The first check is to make sure we're in bounds, the second 9028 * check is to catch wrap-around problems. If the lba + num blocks 9029 * is less than the lba, then we've wrapped around and the block 9030 * range is invalid anyway. 9031 */ 9032 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9033 || ((lba + num_blocks) < lba)) { 9034 ctl_set_lba_out_of_range(ctsio); 9035 ctl_done((union ctl_io *)ctsio); 9036 return (CTL_RETVAL_COMPLETE); 9037 } 9038 9039 /* 9040 * According to SBC-3, a transfer length of 0 is not an error. 9041 */ 9042 if (num_blocks == 0) { 9043 ctl_set_success(ctsio); 9044 ctl_done((union ctl_io *)ctsio); 9045 return (CTL_RETVAL_COMPLETE); 9046 } 9047 9048 /* Set FUA if write cache is disabled. */ 9049 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9050 SCP_WCE) == 0) 9051 flags |= CTL_LLF_FUA; 9052 9053 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 9054 ctsio->kern_rel_offset = 0; 9055 9056 /* 9057 * Set the IO_CONT flag, so that if this I/O gets passed to 9058 * ctl_data_submit_done(), it'll get passed back to 9059 * ctl_ctl_cnw_cont() for further processing. 9060 */ 9061 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 9062 ctsio->io_cont = ctl_cnw_cont; 9063 9064 lbalen = (struct ctl_lba_len_flags *) 9065 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9066 lbalen->lba = lba; 9067 lbalen->len = num_blocks; 9068 lbalen->flags = CTL_LLF_COMPARE | flags; 9069 9070 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 9071 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9072 return (retval); 9073} 9074 9075int 9076ctl_verify(struct ctl_scsiio *ctsio) 9077{ 9078 struct ctl_lun *lun; 9079 struct ctl_lba_len_flags *lbalen; 9080 uint64_t lba; 9081 uint32_t num_blocks; 9082 int bytchk, flags; 9083 int retval; 9084 9085 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9086 9087 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 9088 9089 bytchk = 0; 9090 flags = CTL_LLF_FUA; 9091 retval = CTL_RETVAL_COMPLETE; 9092 9093 switch (ctsio->cdb[0]) { 9094 case VERIFY_10: { 9095 struct scsi_verify_10 *cdb; 9096 9097 cdb = (struct scsi_verify_10 *)ctsio->cdb; 9098 if (cdb->byte2 & SVFY_BYTCHK) 9099 bytchk = 1; 9100 if (cdb->byte2 & SVFY_DPO) 9101 flags |= CTL_LLF_DPO; 9102 lba = scsi_4btoul(cdb->addr); 9103 num_blocks = scsi_2btoul(cdb->length); 9104 break; 9105 } 9106 case VERIFY_12: { 9107 struct scsi_verify_12 *cdb; 9108 9109 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9110 if (cdb->byte2 & SVFY_BYTCHK) 9111 bytchk = 1; 9112 if (cdb->byte2 & SVFY_DPO) 9113 flags |= CTL_LLF_DPO; 9114 lba = scsi_4btoul(cdb->addr); 9115 num_blocks = scsi_4btoul(cdb->length); 9116 break; 9117 } 9118 case VERIFY_16: { 9119 struct scsi_rw_16 *cdb; 9120 9121 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9122 if (cdb->byte2 & SVFY_BYTCHK) 9123 bytchk = 1; 9124 if (cdb->byte2 & SVFY_DPO) 9125 flags |= CTL_LLF_DPO; 9126 lba = scsi_8btou64(cdb->addr); 9127 num_blocks = scsi_4btoul(cdb->length); 9128 break; 9129 } 9130 default: 9131 /* 9132 * We got a command we don't support. This shouldn't 9133 * happen, commands should be filtered out above us. 9134 */ 9135 ctl_set_invalid_opcode(ctsio); 9136 ctl_done((union ctl_io *)ctsio); 9137 return (CTL_RETVAL_COMPLETE); 9138 } 9139 9140 /* 9141 * The first check is to make sure we're in bounds, the second 9142 * check is to catch wrap-around problems. If the lba + num blocks 9143 * is less than the lba, then we've wrapped around and the block 9144 * range is invalid anyway. 9145 */ 9146 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9147 || ((lba + num_blocks) < lba)) { 9148 ctl_set_lba_out_of_range(ctsio); 9149 ctl_done((union ctl_io *)ctsio); 9150 return (CTL_RETVAL_COMPLETE); 9151 } 9152 9153 /* 9154 * According to SBC-3, a transfer length of 0 is not an error. 9155 */ 9156 if (num_blocks == 0) { 9157 ctl_set_success(ctsio); 9158 ctl_done((union ctl_io *)ctsio); 9159 return (CTL_RETVAL_COMPLETE); 9160 } 9161 9162 lbalen = (struct ctl_lba_len_flags *) 9163 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9164 lbalen->lba = lba; 9165 lbalen->len = num_blocks; 9166 if (bytchk) { 9167 lbalen->flags = CTL_LLF_COMPARE | flags; 9168 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9169 } else { 9170 lbalen->flags = CTL_LLF_VERIFY | flags; 9171 ctsio->kern_total_len = 0; 9172 } 9173 ctsio->kern_rel_offset = 0; 9174 9175 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9176 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9177 return (retval); 9178} 9179 9180int 9181ctl_report_luns(struct ctl_scsiio *ctsio) 9182{ 9183 struct scsi_report_luns *cdb; 9184 struct scsi_report_luns_data *lun_data; 9185 struct ctl_lun *lun, *request_lun; 9186 int num_luns, retval; 9187 uint32_t alloc_len, lun_datalen; 9188 int num_filled, well_known; 9189 uint32_t initidx, targ_lun_id, lun_id; 9190 9191 retval = CTL_RETVAL_COMPLETE; 9192 well_known = 0; 9193 9194 cdb = (struct scsi_report_luns *)ctsio->cdb; 9195 9196 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9197 9198 mtx_lock(&control_softc->ctl_lock); 9199 num_luns = control_softc->num_luns; 9200 mtx_unlock(&control_softc->ctl_lock); 9201 9202 switch (cdb->select_report) { 9203 case RPL_REPORT_DEFAULT: 9204 case RPL_REPORT_ALL: 9205 break; 9206 case RPL_REPORT_WELLKNOWN: 9207 well_known = 1; 9208 num_luns = 0; 9209 break; 9210 default: 9211 ctl_set_invalid_field(ctsio, 9212 /*sks_valid*/ 1, 9213 /*command*/ 1, 9214 /*field*/ 2, 9215 /*bit_valid*/ 0, 9216 /*bit*/ 0); 9217 ctl_done((union ctl_io *)ctsio); 9218 return (retval); 9219 break; /* NOTREACHED */ 9220 } 9221 9222 alloc_len = scsi_4btoul(cdb->length); 9223 /* 9224 * The initiator has to allocate at least 16 bytes for this request, 9225 * so he can at least get the header and the first LUN. Otherwise 9226 * we reject the request (per SPC-3 rev 14, section 6.21). 9227 */ 9228 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9229 sizeof(struct scsi_report_luns_lundata))) { 9230 ctl_set_invalid_field(ctsio, 9231 /*sks_valid*/ 1, 9232 /*command*/ 1, 9233 /*field*/ 6, 9234 /*bit_valid*/ 0, 9235 /*bit*/ 0); 9236 ctl_done((union ctl_io *)ctsio); 9237 return (retval); 9238 } 9239 9240 request_lun = (struct ctl_lun *) 9241 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9242 9243 lun_datalen = sizeof(*lun_data) + 9244 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9245 9246 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9247 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9248 ctsio->kern_sg_entries = 0; 9249 9250 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9251 9252 mtx_lock(&control_softc->ctl_lock); 9253 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9254 lun_id = ctl_map_lun(ctsio->io_hdr.nexus.targ_port, targ_lun_id); 9255 if (lun_id >= CTL_MAX_LUNS) 9256 continue; 9257 lun = control_softc->ctl_luns[lun_id]; 9258 if (lun == NULL) 9259 continue; 9260 9261 if (targ_lun_id <= 0xff) { 9262 /* 9263 * Peripheral addressing method, bus number 0. 9264 */ 9265 lun_data->luns[num_filled].lundata[0] = 9266 RPL_LUNDATA_ATYP_PERIPH; 9267 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9268 num_filled++; 9269 } else if (targ_lun_id <= 0x3fff) { 9270 /* 9271 * Flat addressing method. 9272 */ 9273 lun_data->luns[num_filled].lundata[0] = 9274 RPL_LUNDATA_ATYP_FLAT | (targ_lun_id >> 8); 9275 lun_data->luns[num_filled].lundata[1] = 9276 (targ_lun_id & 0xff); 9277 num_filled++; 9278 } else if (targ_lun_id <= 0xffffff) { 9279 /* 9280 * Extended flat addressing method. 9281 */ 9282 lun_data->luns[num_filled].lundata[0] = 9283 RPL_LUNDATA_ATYP_EXTLUN | 0x12; 9284 scsi_ulto3b(targ_lun_id, 9285 &lun_data->luns[num_filled].lundata[1]); 9286 num_filled++; 9287 } else { 9288 printf("ctl_report_luns: bogus LUN number %jd, " 9289 "skipping\n", (intmax_t)targ_lun_id); 9290 } 9291 /* 9292 * According to SPC-3, rev 14 section 6.21: 9293 * 9294 * "The execution of a REPORT LUNS command to any valid and 9295 * installed logical unit shall clear the REPORTED LUNS DATA 9296 * HAS CHANGED unit attention condition for all logical 9297 * units of that target with respect to the requesting 9298 * initiator. A valid and installed logical unit is one 9299 * having a PERIPHERAL QUALIFIER of 000b in the standard 9300 * INQUIRY data (see 6.4.2)." 9301 * 9302 * If request_lun is NULL, the LUN this report luns command 9303 * was issued to is either disabled or doesn't exist. In that 9304 * case, we shouldn't clear any pending lun change unit 9305 * attention. 9306 */ 9307 if (request_lun != NULL) { 9308 mtx_lock(&lun->lun_lock); 9309 lun->pending_ua[initidx] &= ~CTL_UA_LUN_CHANGE; 9310 mtx_unlock(&lun->lun_lock); 9311 } 9312 } 9313 mtx_unlock(&control_softc->ctl_lock); 9314 9315 /* 9316 * It's quite possible that we've returned fewer LUNs than we allocated 9317 * space for. Trim it. 9318 */ 9319 lun_datalen = sizeof(*lun_data) + 9320 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9321 9322 if (lun_datalen < alloc_len) { 9323 ctsio->residual = alloc_len - lun_datalen; 9324 ctsio->kern_data_len = lun_datalen; 9325 ctsio->kern_total_len = lun_datalen; 9326 } else { 9327 ctsio->residual = 0; 9328 ctsio->kern_data_len = alloc_len; 9329 ctsio->kern_total_len = alloc_len; 9330 } 9331 ctsio->kern_data_resid = 0; 9332 ctsio->kern_rel_offset = 0; 9333 ctsio->kern_sg_entries = 0; 9334 9335 /* 9336 * We set this to the actual data length, regardless of how much 9337 * space we actually have to return results. If the user looks at 9338 * this value, he'll know whether or not he allocated enough space 9339 * and reissue the command if necessary. We don't support well 9340 * known logical units, so if the user asks for that, return none. 9341 */ 9342 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9343 9344 /* 9345 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9346 * this request. 9347 */ 9348 ctl_set_success(ctsio); 9349 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9350 ctsio->be_move_done = ctl_config_move_done; 9351 ctl_datamove((union ctl_io *)ctsio); 9352 return (retval); 9353} 9354 9355int 9356ctl_request_sense(struct ctl_scsiio *ctsio) 9357{ 9358 struct scsi_request_sense *cdb; 9359 struct scsi_sense_data *sense_ptr; 9360 struct ctl_lun *lun; 9361 uint32_t initidx; 9362 int have_error; 9363 scsi_sense_data_type sense_format; 9364 9365 cdb = (struct scsi_request_sense *)ctsio->cdb; 9366 9367 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9368 9369 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9370 9371 /* 9372 * Determine which sense format the user wants. 9373 */ 9374 if (cdb->byte2 & SRS_DESC) 9375 sense_format = SSD_TYPE_DESC; 9376 else 9377 sense_format = SSD_TYPE_FIXED; 9378 9379 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9380 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9381 ctsio->kern_sg_entries = 0; 9382 9383 /* 9384 * struct scsi_sense_data, which is currently set to 256 bytes, is 9385 * larger than the largest allowed value for the length field in the 9386 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9387 */ 9388 ctsio->residual = 0; 9389 ctsio->kern_data_len = cdb->length; 9390 ctsio->kern_total_len = cdb->length; 9391 9392 ctsio->kern_data_resid = 0; 9393 ctsio->kern_rel_offset = 0; 9394 ctsio->kern_sg_entries = 0; 9395 9396 /* 9397 * If we don't have a LUN, we don't have any pending sense. 9398 */ 9399 if (lun == NULL) 9400 goto no_sense; 9401 9402 have_error = 0; 9403 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9404 /* 9405 * Check for pending sense, and then for pending unit attentions. 9406 * Pending sense gets returned first, then pending unit attentions. 9407 */ 9408 mtx_lock(&lun->lun_lock); 9409#ifdef CTL_WITH_CA 9410 if (ctl_is_set(lun->have_ca, initidx)) { 9411 scsi_sense_data_type stored_format; 9412 9413 /* 9414 * Check to see which sense format was used for the stored 9415 * sense data. 9416 */ 9417 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9418 9419 /* 9420 * If the user requested a different sense format than the 9421 * one we stored, then we need to convert it to the other 9422 * format. If we're going from descriptor to fixed format 9423 * sense data, we may lose things in translation, depending 9424 * on what options were used. 9425 * 9426 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9427 * for some reason we'll just copy it out as-is. 9428 */ 9429 if ((stored_format == SSD_TYPE_FIXED) 9430 && (sense_format == SSD_TYPE_DESC)) 9431 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9432 &lun->pending_sense[initidx], 9433 (struct scsi_sense_data_desc *)sense_ptr); 9434 else if ((stored_format == SSD_TYPE_DESC) 9435 && (sense_format == SSD_TYPE_FIXED)) 9436 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9437 &lun->pending_sense[initidx], 9438 (struct scsi_sense_data_fixed *)sense_ptr); 9439 else 9440 memcpy(sense_ptr, &lun->pending_sense[initidx], 9441 ctl_min(sizeof(*sense_ptr), 9442 sizeof(lun->pending_sense[initidx]))); 9443 9444 ctl_clear_mask(lun->have_ca, initidx); 9445 have_error = 1; 9446 } else 9447#endif 9448 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 9449 ctl_ua_type ua_type; 9450 9451 ua_type = ctl_build_ua(&lun->pending_ua[initidx], 9452 sense_ptr, sense_format); 9453 if (ua_type != CTL_UA_NONE) 9454 have_error = 1; 9455 } 9456 mtx_unlock(&lun->lun_lock); 9457 9458 /* 9459 * We already have a pending error, return it. 9460 */ 9461 if (have_error != 0) { 9462 /* 9463 * We report the SCSI status as OK, since the status of the 9464 * request sense command itself is OK. 9465 * We report 0 for the sense length, because we aren't doing 9466 * autosense in this case. We're reporting sense as 9467 * parameter data. 9468 */ 9469 ctl_set_success(ctsio); 9470 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9471 ctsio->be_move_done = ctl_config_move_done; 9472 ctl_datamove((union ctl_io *)ctsio); 9473 return (CTL_RETVAL_COMPLETE); 9474 } 9475 9476no_sense: 9477 9478 /* 9479 * No sense information to report, so we report that everything is 9480 * okay. 9481 */ 9482 ctl_set_sense_data(sense_ptr, 9483 lun, 9484 sense_format, 9485 /*current_error*/ 1, 9486 /*sense_key*/ SSD_KEY_NO_SENSE, 9487 /*asc*/ 0x00, 9488 /*ascq*/ 0x00, 9489 SSD_ELEM_NONE); 9490 9491 /* 9492 * We report 0 for the sense length, because we aren't doing 9493 * autosense in this case. We're reporting sense as parameter data. 9494 */ 9495 ctl_set_success(ctsio); 9496 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9497 ctsio->be_move_done = ctl_config_move_done; 9498 ctl_datamove((union ctl_io *)ctsio); 9499 return (CTL_RETVAL_COMPLETE); 9500} 9501 9502int 9503ctl_tur(struct ctl_scsiio *ctsio) 9504{ 9505 9506 CTL_DEBUG_PRINT(("ctl_tur\n")); 9507 9508 ctl_set_success(ctsio); 9509 ctl_done((union ctl_io *)ctsio); 9510 9511 return (CTL_RETVAL_COMPLETE); 9512} 9513 9514#ifdef notyet 9515static int 9516ctl_cmddt_inquiry(struct ctl_scsiio *ctsio) 9517{ 9518 9519} 9520#endif 9521 9522static int 9523ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9524{ 9525 struct scsi_vpd_supported_pages *pages; 9526 int sup_page_size; 9527 struct ctl_lun *lun; 9528 9529 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9530 9531 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9532 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9533 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9534 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9535 ctsio->kern_sg_entries = 0; 9536 9537 if (sup_page_size < alloc_len) { 9538 ctsio->residual = alloc_len - sup_page_size; 9539 ctsio->kern_data_len = sup_page_size; 9540 ctsio->kern_total_len = sup_page_size; 9541 } else { 9542 ctsio->residual = 0; 9543 ctsio->kern_data_len = alloc_len; 9544 ctsio->kern_total_len = alloc_len; 9545 } 9546 ctsio->kern_data_resid = 0; 9547 ctsio->kern_rel_offset = 0; 9548 ctsio->kern_sg_entries = 0; 9549 9550 /* 9551 * The control device is always connected. The disk device, on the 9552 * other hand, may not be online all the time. Need to change this 9553 * to figure out whether the disk device is actually online or not. 9554 */ 9555 if (lun != NULL) 9556 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9557 lun->be_lun->lun_type; 9558 else 9559 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9560 9561 pages->length = SCSI_EVPD_NUM_SUPPORTED_PAGES; 9562 /* Supported VPD pages */ 9563 pages->page_list[0] = SVPD_SUPPORTED_PAGES; 9564 /* Serial Number */ 9565 pages->page_list[1] = SVPD_UNIT_SERIAL_NUMBER; 9566 /* Device Identification */ 9567 pages->page_list[2] = SVPD_DEVICE_ID; 9568 /* Extended INQUIRY Data */ 9569 pages->page_list[3] = SVPD_EXTENDED_INQUIRY_DATA; 9570 /* Mode Page Policy */ 9571 pages->page_list[4] = SVPD_MODE_PAGE_POLICY; 9572 /* SCSI Ports */ 9573 pages->page_list[5] = SVPD_SCSI_PORTS; 9574 /* Third-party Copy */ 9575 pages->page_list[6] = SVPD_SCSI_TPC; 9576 /* Block limits */ 9577 pages->page_list[7] = SVPD_BLOCK_LIMITS; 9578 /* Block Device Characteristics */ 9579 pages->page_list[8] = SVPD_BDC; 9580 /* Logical Block Provisioning */ 9581 pages->page_list[9] = SVPD_LBP; 9582 9583 ctl_set_success(ctsio); 9584 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9585 ctsio->be_move_done = ctl_config_move_done; 9586 ctl_datamove((union ctl_io *)ctsio); 9587 return (CTL_RETVAL_COMPLETE); 9588} 9589 9590static int 9591ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9592{ 9593 struct scsi_vpd_unit_serial_number *sn_ptr; 9594 struct ctl_lun *lun; 9595 int data_len; 9596 9597 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9598 9599 data_len = 4 + CTL_SN_LEN; 9600 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9601 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9602 if (data_len < alloc_len) { 9603 ctsio->residual = alloc_len - data_len; 9604 ctsio->kern_data_len = data_len; 9605 ctsio->kern_total_len = data_len; 9606 } else { 9607 ctsio->residual = 0; 9608 ctsio->kern_data_len = alloc_len; 9609 ctsio->kern_total_len = alloc_len; 9610 } 9611 ctsio->kern_data_resid = 0; 9612 ctsio->kern_rel_offset = 0; 9613 ctsio->kern_sg_entries = 0; 9614 9615 /* 9616 * The control device is always connected. The disk device, on the 9617 * other hand, may not be online all the time. Need to change this 9618 * to figure out whether the disk device is actually online or not. 9619 */ 9620 if (lun != NULL) 9621 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9622 lun->be_lun->lun_type; 9623 else 9624 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9625 9626 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9627 sn_ptr->length = CTL_SN_LEN; 9628 /* 9629 * If we don't have a LUN, we just leave the serial number as 9630 * all spaces. 9631 */ 9632 if (lun != NULL) { 9633 strncpy((char *)sn_ptr->serial_num, 9634 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9635 } else 9636 memset(sn_ptr->serial_num, 0x20, CTL_SN_LEN); 9637 9638 ctl_set_success(ctsio); 9639 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9640 ctsio->be_move_done = ctl_config_move_done; 9641 ctl_datamove((union ctl_io *)ctsio); 9642 return (CTL_RETVAL_COMPLETE); 9643} 9644 9645 9646static int 9647ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9648{ 9649 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9650 struct ctl_lun *lun; 9651 int data_len; 9652 9653 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9654 9655 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9656 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9657 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9658 ctsio->kern_sg_entries = 0; 9659 9660 if (data_len < alloc_len) { 9661 ctsio->residual = alloc_len - data_len; 9662 ctsio->kern_data_len = data_len; 9663 ctsio->kern_total_len = data_len; 9664 } else { 9665 ctsio->residual = 0; 9666 ctsio->kern_data_len = alloc_len; 9667 ctsio->kern_total_len = alloc_len; 9668 } 9669 ctsio->kern_data_resid = 0; 9670 ctsio->kern_rel_offset = 0; 9671 ctsio->kern_sg_entries = 0; 9672 9673 /* 9674 * The control device is always connected. The disk device, on the 9675 * other hand, may not be online all the time. 9676 */ 9677 if (lun != NULL) 9678 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9679 lun->be_lun->lun_type; 9680 else 9681 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9682 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9683 eid_ptr->page_length = data_len - 4; 9684 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9685 eid_ptr->flags3 = SVPD_EID_V_SUP; 9686 9687 ctl_set_success(ctsio); 9688 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9689 ctsio->be_move_done = ctl_config_move_done; 9690 ctl_datamove((union ctl_io *)ctsio); 9691 return (CTL_RETVAL_COMPLETE); 9692} 9693 9694static int 9695ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9696{ 9697 struct scsi_vpd_mode_page_policy *mpp_ptr; 9698 struct ctl_lun *lun; 9699 int data_len; 9700 9701 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9702 9703 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9704 sizeof(struct scsi_vpd_mode_page_policy_descr); 9705 9706 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9707 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9708 ctsio->kern_sg_entries = 0; 9709 9710 if (data_len < alloc_len) { 9711 ctsio->residual = alloc_len - data_len; 9712 ctsio->kern_data_len = data_len; 9713 ctsio->kern_total_len = data_len; 9714 } else { 9715 ctsio->residual = 0; 9716 ctsio->kern_data_len = alloc_len; 9717 ctsio->kern_total_len = alloc_len; 9718 } 9719 ctsio->kern_data_resid = 0; 9720 ctsio->kern_rel_offset = 0; 9721 ctsio->kern_sg_entries = 0; 9722 9723 /* 9724 * The control device is always connected. The disk device, on the 9725 * other hand, may not be online all the time. 9726 */ 9727 if (lun != NULL) 9728 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9729 lun->be_lun->lun_type; 9730 else 9731 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9732 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9733 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9734 mpp_ptr->descr[0].page_code = 0x3f; 9735 mpp_ptr->descr[0].subpage_code = 0xff; 9736 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9737 9738 ctl_set_success(ctsio); 9739 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9740 ctsio->be_move_done = ctl_config_move_done; 9741 ctl_datamove((union ctl_io *)ctsio); 9742 return (CTL_RETVAL_COMPLETE); 9743} 9744 9745static int 9746ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9747{ 9748 struct scsi_vpd_device_id *devid_ptr; 9749 struct scsi_vpd_id_descriptor *desc; 9750 struct ctl_softc *ctl_softc; 9751 struct ctl_lun *lun; 9752 struct ctl_port *port; 9753 int data_len; 9754 uint8_t proto; 9755 9756 ctl_softc = control_softc; 9757 9758 port = ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]; 9759 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9760 9761 data_len = sizeof(struct scsi_vpd_device_id) + 9762 sizeof(struct scsi_vpd_id_descriptor) + 9763 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9764 sizeof(struct scsi_vpd_id_descriptor) + 9765 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9766 if (lun && lun->lun_devid) 9767 data_len += lun->lun_devid->len; 9768 if (port->port_devid) 9769 data_len += port->port_devid->len; 9770 if (port->target_devid) 9771 data_len += port->target_devid->len; 9772 9773 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9774 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9775 ctsio->kern_sg_entries = 0; 9776 9777 if (data_len < alloc_len) { 9778 ctsio->residual = alloc_len - data_len; 9779 ctsio->kern_data_len = data_len; 9780 ctsio->kern_total_len = data_len; 9781 } else { 9782 ctsio->residual = 0; 9783 ctsio->kern_data_len = alloc_len; 9784 ctsio->kern_total_len = alloc_len; 9785 } 9786 ctsio->kern_data_resid = 0; 9787 ctsio->kern_rel_offset = 0; 9788 ctsio->kern_sg_entries = 0; 9789 9790 /* 9791 * The control device is always connected. The disk device, on the 9792 * other hand, may not be online all the time. 9793 */ 9794 if (lun != NULL) 9795 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9796 lun->be_lun->lun_type; 9797 else 9798 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9799 devid_ptr->page_code = SVPD_DEVICE_ID; 9800 scsi_ulto2b(data_len - 4, devid_ptr->length); 9801 9802 if (port->port_type == CTL_PORT_FC) 9803 proto = SCSI_PROTO_FC << 4; 9804 else if (port->port_type == CTL_PORT_ISCSI) 9805 proto = SCSI_PROTO_ISCSI << 4; 9806 else 9807 proto = SCSI_PROTO_SPI << 4; 9808 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9809 9810 /* 9811 * We're using a LUN association here. i.e., this device ID is a 9812 * per-LUN identifier. 9813 */ 9814 if (lun && lun->lun_devid) { 9815 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9816 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9817 lun->lun_devid->len); 9818 } 9819 9820 /* 9821 * This is for the WWPN which is a port association. 9822 */ 9823 if (port->port_devid) { 9824 memcpy(desc, port->port_devid->data, port->port_devid->len); 9825 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9826 port->port_devid->len); 9827 } 9828 9829 /* 9830 * This is for the Relative Target Port(type 4h) identifier 9831 */ 9832 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9833 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9834 SVPD_ID_TYPE_RELTARG; 9835 desc->length = 4; 9836 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9837 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9838 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9839 9840 /* 9841 * This is for the Target Port Group(type 5h) identifier 9842 */ 9843 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9844 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9845 SVPD_ID_TYPE_TPORTGRP; 9846 desc->length = 4; 9847 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS + 1, 9848 &desc->identifier[2]); 9849 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9850 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9851 9852 /* 9853 * This is for the Target identifier 9854 */ 9855 if (port->target_devid) { 9856 memcpy(desc, port->target_devid->data, port->target_devid->len); 9857 } 9858 9859 ctl_set_success(ctsio); 9860 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9861 ctsio->be_move_done = ctl_config_move_done; 9862 ctl_datamove((union ctl_io *)ctsio); 9863 return (CTL_RETVAL_COMPLETE); 9864} 9865 9866static int 9867ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 9868{ 9869 struct ctl_softc *softc = control_softc; 9870 struct scsi_vpd_scsi_ports *sp; 9871 struct scsi_vpd_port_designation *pd; 9872 struct scsi_vpd_port_designation_cont *pdc; 9873 struct ctl_lun *lun; 9874 struct ctl_port *port; 9875 int data_len, num_target_ports, iid_len, id_len, g, pg, p; 9876 int num_target_port_groups; 9877 9878 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9879 9880 if (softc->is_single) 9881 num_target_port_groups = 1; 9882 else 9883 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 9884 num_target_ports = 0; 9885 iid_len = 0; 9886 id_len = 0; 9887 mtx_lock(&softc->ctl_lock); 9888 STAILQ_FOREACH(port, &softc->port_list, links) { 9889 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9890 continue; 9891 if (lun != NULL && 9892 ctl_map_lun_back(port->targ_port, lun->lun) >= 9893 CTL_MAX_LUNS) 9894 continue; 9895 num_target_ports++; 9896 if (port->init_devid) 9897 iid_len += port->init_devid->len; 9898 if (port->port_devid) 9899 id_len += port->port_devid->len; 9900 } 9901 mtx_unlock(&softc->ctl_lock); 9902 9903 data_len = sizeof(struct scsi_vpd_scsi_ports) + num_target_port_groups * 9904 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 9905 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 9906 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9907 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 9908 ctsio->kern_sg_entries = 0; 9909 9910 if (data_len < alloc_len) { 9911 ctsio->residual = alloc_len - data_len; 9912 ctsio->kern_data_len = data_len; 9913 ctsio->kern_total_len = data_len; 9914 } else { 9915 ctsio->residual = 0; 9916 ctsio->kern_data_len = alloc_len; 9917 ctsio->kern_total_len = alloc_len; 9918 } 9919 ctsio->kern_data_resid = 0; 9920 ctsio->kern_rel_offset = 0; 9921 ctsio->kern_sg_entries = 0; 9922 9923 /* 9924 * The control device is always connected. The disk device, on the 9925 * other hand, may not be online all the time. Need to change this 9926 * to figure out whether the disk device is actually online or not. 9927 */ 9928 if (lun != NULL) 9929 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 9930 lun->be_lun->lun_type; 9931 else 9932 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9933 9934 sp->page_code = SVPD_SCSI_PORTS; 9935 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 9936 sp->page_length); 9937 pd = &sp->design[0]; 9938 9939 mtx_lock(&softc->ctl_lock); 9940 pg = softc->port_offset / CTL_MAX_PORTS; 9941 for (g = 0; g < num_target_port_groups; g++) { 9942 STAILQ_FOREACH(port, &softc->port_list, links) { 9943 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9944 continue; 9945 if (lun != NULL && 9946 ctl_map_lun_back(port->targ_port, lun->lun) >= 9947 CTL_MAX_LUNS) 9948 continue; 9949 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 9950 scsi_ulto2b(p, pd->relative_port_id); 9951 if (port->init_devid && g == pg) { 9952 iid_len = port->init_devid->len; 9953 memcpy(pd->initiator_transportid, 9954 port->init_devid->data, port->init_devid->len); 9955 } else 9956 iid_len = 0; 9957 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 9958 pdc = (struct scsi_vpd_port_designation_cont *) 9959 (&pd->initiator_transportid[iid_len]); 9960 if (port->port_devid && g == pg) { 9961 id_len = port->port_devid->len; 9962 memcpy(pdc->target_port_descriptors, 9963 port->port_devid->data, port->port_devid->len); 9964 } else 9965 id_len = 0; 9966 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 9967 pd = (struct scsi_vpd_port_designation *) 9968 ((uint8_t *)pdc->target_port_descriptors + id_len); 9969 } 9970 } 9971 mtx_unlock(&softc->ctl_lock); 9972 9973 ctl_set_success(ctsio); 9974 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9975 ctsio->be_move_done = ctl_config_move_done; 9976 ctl_datamove((union ctl_io *)ctsio); 9977 return (CTL_RETVAL_COMPLETE); 9978} 9979 9980static int 9981ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 9982{ 9983 struct scsi_vpd_block_limits *bl_ptr; 9984 struct ctl_lun *lun; 9985 int bs; 9986 9987 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9988 9989 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 9990 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 9991 ctsio->kern_sg_entries = 0; 9992 9993 if (sizeof(*bl_ptr) < alloc_len) { 9994 ctsio->residual = alloc_len - sizeof(*bl_ptr); 9995 ctsio->kern_data_len = sizeof(*bl_ptr); 9996 ctsio->kern_total_len = sizeof(*bl_ptr); 9997 } else { 9998 ctsio->residual = 0; 9999 ctsio->kern_data_len = alloc_len; 10000 ctsio->kern_total_len = alloc_len; 10001 } 10002 ctsio->kern_data_resid = 0; 10003 ctsio->kern_rel_offset = 0; 10004 ctsio->kern_sg_entries = 0; 10005 10006 /* 10007 * The control device is always connected. The disk device, on the 10008 * other hand, may not be online all the time. Need to change this 10009 * to figure out whether the disk device is actually online or not. 10010 */ 10011 if (lun != NULL) 10012 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10013 lun->be_lun->lun_type; 10014 else 10015 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10016 10017 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 10018 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 10019 bl_ptr->max_cmp_write_len = 0xff; 10020 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 10021 if (lun != NULL) { 10022 bs = lun->be_lun->blocksize; 10023 scsi_ulto4b(MAXPHYS / bs, bl_ptr->opt_txfer_len); 10024 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10025 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 10026 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 10027 if (lun->be_lun->pblockexp != 0) { 10028 scsi_ulto4b((1 << lun->be_lun->pblockexp), 10029 bl_ptr->opt_unmap_grain); 10030 scsi_ulto4b(0x80000000 | lun->be_lun->pblockoff, 10031 bl_ptr->unmap_grain_align); 10032 } 10033 } 10034 scsi_ulto4b(lun->be_lun->atomicblock, 10035 bl_ptr->max_atomic_transfer_length); 10036 scsi_ulto4b(0, bl_ptr->atomic_alignment); 10037 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 10038 } 10039 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 10040 10041 ctl_set_success(ctsio); 10042 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10043 ctsio->be_move_done = ctl_config_move_done; 10044 ctl_datamove((union ctl_io *)ctsio); 10045 return (CTL_RETVAL_COMPLETE); 10046} 10047 10048static int 10049ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 10050{ 10051 struct scsi_vpd_block_device_characteristics *bdc_ptr; 10052 struct ctl_lun *lun; 10053 const char *value; 10054 u_int i; 10055 10056 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10057 10058 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 10059 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 10060 ctsio->kern_sg_entries = 0; 10061 10062 if (sizeof(*bdc_ptr) < alloc_len) { 10063 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 10064 ctsio->kern_data_len = sizeof(*bdc_ptr); 10065 ctsio->kern_total_len = sizeof(*bdc_ptr); 10066 } else { 10067 ctsio->residual = 0; 10068 ctsio->kern_data_len = alloc_len; 10069 ctsio->kern_total_len = alloc_len; 10070 } 10071 ctsio->kern_data_resid = 0; 10072 ctsio->kern_rel_offset = 0; 10073 ctsio->kern_sg_entries = 0; 10074 10075 /* 10076 * The control device is always connected. The disk device, on the 10077 * other hand, may not be online all the time. Need to change this 10078 * to figure out whether the disk device is actually online or not. 10079 */ 10080 if (lun != NULL) 10081 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10082 lun->be_lun->lun_type; 10083 else 10084 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10085 bdc_ptr->page_code = SVPD_BDC; 10086 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 10087 if (lun != NULL && 10088 (value = ctl_get_opt(&lun->be_lun->options, "rpm")) != NULL) 10089 i = strtol(value, NULL, 0); 10090 else 10091 i = CTL_DEFAULT_ROTATION_RATE; 10092 scsi_ulto2b(i, bdc_ptr->medium_rotation_rate); 10093 if (lun != NULL && 10094 (value = ctl_get_opt(&lun->be_lun->options, "formfactor")) != NULL) 10095 i = strtol(value, NULL, 0); 10096 else 10097 i = 0; 10098 bdc_ptr->wab_wac_ff = (i & 0x0f); 10099 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 10100 10101 ctl_set_success(ctsio); 10102 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10103 ctsio->be_move_done = ctl_config_move_done; 10104 ctl_datamove((union ctl_io *)ctsio); 10105 return (CTL_RETVAL_COMPLETE); 10106} 10107 10108static int 10109ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10110{ 10111 struct scsi_vpd_logical_block_prov *lbp_ptr; 10112 struct ctl_lun *lun; 10113 10114 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10115 10116 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10117 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10118 ctsio->kern_sg_entries = 0; 10119 10120 if (sizeof(*lbp_ptr) < alloc_len) { 10121 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10122 ctsio->kern_data_len = sizeof(*lbp_ptr); 10123 ctsio->kern_total_len = sizeof(*lbp_ptr); 10124 } else { 10125 ctsio->residual = 0; 10126 ctsio->kern_data_len = alloc_len; 10127 ctsio->kern_total_len = alloc_len; 10128 } 10129 ctsio->kern_data_resid = 0; 10130 ctsio->kern_rel_offset = 0; 10131 ctsio->kern_sg_entries = 0; 10132 10133 /* 10134 * The control device is always connected. The disk device, on the 10135 * other hand, may not be online all the time. Need to change this 10136 * to figure out whether the disk device is actually online or not. 10137 */ 10138 if (lun != NULL) 10139 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10140 lun->be_lun->lun_type; 10141 else 10142 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10143 10144 lbp_ptr->page_code = SVPD_LBP; 10145 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10146 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10147 lbp_ptr->threshold_exponent = CTL_LBP_EXPONENT; 10148 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10149 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10150 lbp_ptr->prov_type = SVPD_LBP_THIN; 10151 } 10152 10153 ctl_set_success(ctsio); 10154 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10155 ctsio->be_move_done = ctl_config_move_done; 10156 ctl_datamove((union ctl_io *)ctsio); 10157 return (CTL_RETVAL_COMPLETE); 10158} 10159 10160static int 10161ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10162{ 10163 struct scsi_inquiry *cdb; 10164 int alloc_len, retval; 10165 10166 cdb = (struct scsi_inquiry *)ctsio->cdb; 10167 10168 retval = CTL_RETVAL_COMPLETE; 10169 10170 alloc_len = scsi_2btoul(cdb->length); 10171 10172 switch (cdb->page_code) { 10173 case SVPD_SUPPORTED_PAGES: 10174 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10175 break; 10176 case SVPD_UNIT_SERIAL_NUMBER: 10177 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10178 break; 10179 case SVPD_DEVICE_ID: 10180 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10181 break; 10182 case SVPD_EXTENDED_INQUIRY_DATA: 10183 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10184 break; 10185 case SVPD_MODE_PAGE_POLICY: 10186 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10187 break; 10188 case SVPD_SCSI_PORTS: 10189 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10190 break; 10191 case SVPD_SCSI_TPC: 10192 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10193 break; 10194 case SVPD_BLOCK_LIMITS: 10195 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10196 break; 10197 case SVPD_BDC: 10198 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10199 break; 10200 case SVPD_LBP: 10201 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10202 break; 10203 default: 10204 ctl_set_invalid_field(ctsio, 10205 /*sks_valid*/ 1, 10206 /*command*/ 1, 10207 /*field*/ 2, 10208 /*bit_valid*/ 0, 10209 /*bit*/ 0); 10210 ctl_done((union ctl_io *)ctsio); 10211 retval = CTL_RETVAL_COMPLETE; 10212 break; 10213 } 10214 10215 return (retval); 10216} 10217 10218static int 10219ctl_inquiry_std(struct ctl_scsiio *ctsio) 10220{ 10221 struct scsi_inquiry_data *inq_ptr; 10222 struct scsi_inquiry *cdb; 10223 struct ctl_softc *ctl_softc; 10224 struct ctl_lun *lun; 10225 char *val; 10226 uint32_t alloc_len, data_len; 10227 ctl_port_type port_type; 10228 10229 ctl_softc = control_softc; 10230 10231 /* 10232 * Figure out whether we're talking to a Fibre Channel port or not. 10233 * We treat the ioctl front end, and any SCSI adapters, as packetized 10234 * SCSI front ends. 10235 */ 10236 port_type = ctl_softc->ctl_ports[ 10237 ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]->port_type; 10238 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10239 port_type = CTL_PORT_SCSI; 10240 10241 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10242 cdb = (struct scsi_inquiry *)ctsio->cdb; 10243 alloc_len = scsi_2btoul(cdb->length); 10244 10245 /* 10246 * We malloc the full inquiry data size here and fill it 10247 * in. If the user only asks for less, we'll give him 10248 * that much. 10249 */ 10250 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10251 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10252 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10253 ctsio->kern_sg_entries = 0; 10254 ctsio->kern_data_resid = 0; 10255 ctsio->kern_rel_offset = 0; 10256 10257 if (data_len < alloc_len) { 10258 ctsio->residual = alloc_len - data_len; 10259 ctsio->kern_data_len = data_len; 10260 ctsio->kern_total_len = data_len; 10261 } else { 10262 ctsio->residual = 0; 10263 ctsio->kern_data_len = alloc_len; 10264 ctsio->kern_total_len = alloc_len; 10265 } 10266 10267 /* 10268 * If we have a LUN configured, report it as connected. Otherwise, 10269 * report that it is offline or no device is supported, depending 10270 * on the value of inquiry_pq_no_lun. 10271 * 10272 * According to the spec (SPC-4 r34), the peripheral qualifier 10273 * SID_QUAL_LU_OFFLINE (001b) is used in the following scenario: 10274 * 10275 * "A peripheral device having the specified peripheral device type 10276 * is not connected to this logical unit. However, the device 10277 * server is capable of supporting the specified peripheral device 10278 * type on this logical unit." 10279 * 10280 * According to the same spec, the peripheral qualifier 10281 * SID_QUAL_BAD_LU (011b) is used in this scenario: 10282 * 10283 * "The device server is not capable of supporting a peripheral 10284 * device on this logical unit. For this peripheral qualifier the 10285 * peripheral device type shall be set to 1Fh. All other peripheral 10286 * device type values are reserved for this peripheral qualifier." 10287 * 10288 * Given the text, it would seem that we probably want to report that 10289 * the LUN is offline here. There is no LUN connected, but we can 10290 * support a LUN at the given LUN number. 10291 * 10292 * In the real world, though, it sounds like things are a little 10293 * different: 10294 * 10295 * - Linux, when presented with a LUN with the offline peripheral 10296 * qualifier, will create an sg driver instance for it. So when 10297 * you attach it to CTL, you wind up with a ton of sg driver 10298 * instances. (One for every LUN that Linux bothered to probe.) 10299 * Linux does this despite the fact that it issues a REPORT LUNs 10300 * to LUN 0 to get the inventory of supported LUNs. 10301 * 10302 * - There is other anecdotal evidence (from Emulex folks) about 10303 * arrays that use the offline peripheral qualifier for LUNs that 10304 * are on the "passive" path in an active/passive array. 10305 * 10306 * So the solution is provide a hopefully reasonable default 10307 * (return bad/no LUN) and allow the user to change the behavior 10308 * with a tunable/sysctl variable. 10309 */ 10310 if (lun != NULL) 10311 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10312 lun->be_lun->lun_type; 10313 else if (ctl_softc->inquiry_pq_no_lun == 0) 10314 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10315 else 10316 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10317 10318 /* RMB in byte 2 is 0 */ 10319 inq_ptr->version = SCSI_REV_SPC4; 10320 10321 /* 10322 * According to SAM-3, even if a device only supports a single 10323 * level of LUN addressing, it should still set the HISUP bit: 10324 * 10325 * 4.9.1 Logical unit numbers overview 10326 * 10327 * All logical unit number formats described in this standard are 10328 * hierarchical in structure even when only a single level in that 10329 * hierarchy is used. The HISUP bit shall be set to one in the 10330 * standard INQUIRY data (see SPC-2) when any logical unit number 10331 * format described in this standard is used. Non-hierarchical 10332 * formats are outside the scope of this standard. 10333 * 10334 * Therefore we set the HiSup bit here. 10335 * 10336 * The reponse format is 2, per SPC-3. 10337 */ 10338 inq_ptr->response_format = SID_HiSup | 2; 10339 10340 inq_ptr->additional_length = data_len - 10341 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10342 CTL_DEBUG_PRINT(("additional_length = %d\n", 10343 inq_ptr->additional_length)); 10344 10345 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10346 /* 16 bit addressing */ 10347 if (port_type == CTL_PORT_SCSI) 10348 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10349 /* XXX set the SID_MultiP bit here if we're actually going to 10350 respond on multiple ports */ 10351 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10352 10353 /* 16 bit data bus, synchronous transfers */ 10354 if (port_type == CTL_PORT_SCSI) 10355 inq_ptr->flags = SID_WBus16 | SID_Sync; 10356 /* 10357 * XXX KDM do we want to support tagged queueing on the control 10358 * device at all? 10359 */ 10360 if ((lun == NULL) 10361 || (lun->be_lun->lun_type != T_PROCESSOR)) 10362 inq_ptr->flags |= SID_CmdQue; 10363 /* 10364 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10365 * We have 8 bytes for the vendor name, and 16 bytes for the device 10366 * name and 4 bytes for the revision. 10367 */ 10368 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10369 "vendor")) == NULL) { 10370 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10371 } else { 10372 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10373 strncpy(inq_ptr->vendor, val, 10374 min(sizeof(inq_ptr->vendor), strlen(val))); 10375 } 10376 if (lun == NULL) { 10377 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10378 sizeof(inq_ptr->product)); 10379 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10380 switch (lun->be_lun->lun_type) { 10381 case T_DIRECT: 10382 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10383 sizeof(inq_ptr->product)); 10384 break; 10385 case T_PROCESSOR: 10386 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10387 sizeof(inq_ptr->product)); 10388 break; 10389 default: 10390 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10391 sizeof(inq_ptr->product)); 10392 break; 10393 } 10394 } else { 10395 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10396 strncpy(inq_ptr->product, val, 10397 min(sizeof(inq_ptr->product), strlen(val))); 10398 } 10399 10400 /* 10401 * XXX make this a macro somewhere so it automatically gets 10402 * incremented when we make changes. 10403 */ 10404 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10405 "revision")) == NULL) { 10406 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10407 } else { 10408 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10409 strncpy(inq_ptr->revision, val, 10410 min(sizeof(inq_ptr->revision), strlen(val))); 10411 } 10412 10413 /* 10414 * For parallel SCSI, we support double transition and single 10415 * transition clocking. We also support QAS (Quick Arbitration 10416 * and Selection) and Information Unit transfers on both the 10417 * control and array devices. 10418 */ 10419 if (port_type == CTL_PORT_SCSI) 10420 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10421 SID_SPI_IUS; 10422 10423 /* SAM-5 (no version claimed) */ 10424 scsi_ulto2b(0x00A0, inq_ptr->version1); 10425 /* SPC-4 (no version claimed) */ 10426 scsi_ulto2b(0x0460, inq_ptr->version2); 10427 if (port_type == CTL_PORT_FC) { 10428 /* FCP-2 ANSI INCITS.350:2003 */ 10429 scsi_ulto2b(0x0917, inq_ptr->version3); 10430 } else if (port_type == CTL_PORT_SCSI) { 10431 /* SPI-4 ANSI INCITS.362:200x */ 10432 scsi_ulto2b(0x0B56, inq_ptr->version3); 10433 } else if (port_type == CTL_PORT_ISCSI) { 10434 /* iSCSI (no version claimed) */ 10435 scsi_ulto2b(0x0960, inq_ptr->version3); 10436 } else if (port_type == CTL_PORT_SAS) { 10437 /* SAS (no version claimed) */ 10438 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10439 } 10440 10441 if (lun == NULL) { 10442 /* SBC-4 (no version claimed) */ 10443 scsi_ulto2b(0x0600, inq_ptr->version4); 10444 } else { 10445 switch (lun->be_lun->lun_type) { 10446 case T_DIRECT: 10447 /* SBC-4 (no version claimed) */ 10448 scsi_ulto2b(0x0600, inq_ptr->version4); 10449 break; 10450 case T_PROCESSOR: 10451 default: 10452 break; 10453 } 10454 } 10455 10456 ctl_set_success(ctsio); 10457 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10458 ctsio->be_move_done = ctl_config_move_done; 10459 ctl_datamove((union ctl_io *)ctsio); 10460 return (CTL_RETVAL_COMPLETE); 10461} 10462 10463int 10464ctl_inquiry(struct ctl_scsiio *ctsio) 10465{ 10466 struct scsi_inquiry *cdb; 10467 int retval; 10468 10469 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10470 10471 cdb = (struct scsi_inquiry *)ctsio->cdb; 10472 if (cdb->byte2 & SI_EVPD) 10473 retval = ctl_inquiry_evpd(ctsio); 10474 else if (cdb->page_code == 0) 10475 retval = ctl_inquiry_std(ctsio); 10476 else { 10477 ctl_set_invalid_field(ctsio, 10478 /*sks_valid*/ 1, 10479 /*command*/ 1, 10480 /*field*/ 2, 10481 /*bit_valid*/ 0, 10482 /*bit*/ 0); 10483 ctl_done((union ctl_io *)ctsio); 10484 return (CTL_RETVAL_COMPLETE); 10485 } 10486 10487 return (retval); 10488} 10489 10490/* 10491 * For known CDB types, parse the LBA and length. 10492 */ 10493static int 10494ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10495{ 10496 if (io->io_hdr.io_type != CTL_IO_SCSI) 10497 return (1); 10498 10499 switch (io->scsiio.cdb[0]) { 10500 case COMPARE_AND_WRITE: { 10501 struct scsi_compare_and_write *cdb; 10502 10503 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10504 10505 *lba = scsi_8btou64(cdb->addr); 10506 *len = cdb->length; 10507 break; 10508 } 10509 case READ_6: 10510 case WRITE_6: { 10511 struct scsi_rw_6 *cdb; 10512 10513 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10514 10515 *lba = scsi_3btoul(cdb->addr); 10516 /* only 5 bits are valid in the most significant address byte */ 10517 *lba &= 0x1fffff; 10518 *len = cdb->length; 10519 break; 10520 } 10521 case READ_10: 10522 case WRITE_10: { 10523 struct scsi_rw_10 *cdb; 10524 10525 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10526 10527 *lba = scsi_4btoul(cdb->addr); 10528 *len = scsi_2btoul(cdb->length); 10529 break; 10530 } 10531 case WRITE_VERIFY_10: { 10532 struct scsi_write_verify_10 *cdb; 10533 10534 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10535 10536 *lba = scsi_4btoul(cdb->addr); 10537 *len = scsi_2btoul(cdb->length); 10538 break; 10539 } 10540 case READ_12: 10541 case WRITE_12: { 10542 struct scsi_rw_12 *cdb; 10543 10544 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10545 10546 *lba = scsi_4btoul(cdb->addr); 10547 *len = scsi_4btoul(cdb->length); 10548 break; 10549 } 10550 case WRITE_VERIFY_12: { 10551 struct scsi_write_verify_12 *cdb; 10552 10553 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10554 10555 *lba = scsi_4btoul(cdb->addr); 10556 *len = scsi_4btoul(cdb->length); 10557 break; 10558 } 10559 case READ_16: 10560 case WRITE_16: 10561 case WRITE_ATOMIC_16: { 10562 struct scsi_rw_16 *cdb; 10563 10564 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10565 10566 *lba = scsi_8btou64(cdb->addr); 10567 *len = scsi_4btoul(cdb->length); 10568 break; 10569 } 10570 case WRITE_VERIFY_16: { 10571 struct scsi_write_verify_16 *cdb; 10572 10573 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10574 10575 *lba = scsi_8btou64(cdb->addr); 10576 *len = scsi_4btoul(cdb->length); 10577 break; 10578 } 10579 case WRITE_SAME_10: { 10580 struct scsi_write_same_10 *cdb; 10581 10582 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10583 10584 *lba = scsi_4btoul(cdb->addr); 10585 *len = scsi_2btoul(cdb->length); 10586 break; 10587 } 10588 case WRITE_SAME_16: { 10589 struct scsi_write_same_16 *cdb; 10590 10591 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10592 10593 *lba = scsi_8btou64(cdb->addr); 10594 *len = scsi_4btoul(cdb->length); 10595 break; 10596 } 10597 case VERIFY_10: { 10598 struct scsi_verify_10 *cdb; 10599 10600 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10601 10602 *lba = scsi_4btoul(cdb->addr); 10603 *len = scsi_2btoul(cdb->length); 10604 break; 10605 } 10606 case VERIFY_12: { 10607 struct scsi_verify_12 *cdb; 10608 10609 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10610 10611 *lba = scsi_4btoul(cdb->addr); 10612 *len = scsi_4btoul(cdb->length); 10613 break; 10614 } 10615 case VERIFY_16: { 10616 struct scsi_verify_16 *cdb; 10617 10618 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10619 10620 *lba = scsi_8btou64(cdb->addr); 10621 *len = scsi_4btoul(cdb->length); 10622 break; 10623 } 10624 case UNMAP: { 10625 *lba = 0; 10626 *len = UINT64_MAX; 10627 break; 10628 } 10629 default: 10630 return (1); 10631 break; /* NOTREACHED */ 10632 } 10633 10634 return (0); 10635} 10636 10637static ctl_action 10638ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2) 10639{ 10640 uint64_t endlba1, endlba2; 10641 10642 endlba1 = lba1 + len1 - 1; 10643 endlba2 = lba2 + len2 - 1; 10644 10645 if ((endlba1 < lba2) 10646 || (endlba2 < lba1)) 10647 return (CTL_ACTION_PASS); 10648 else 10649 return (CTL_ACTION_BLOCK); 10650} 10651 10652static int 10653ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10654{ 10655 struct ctl_ptr_len_flags *ptrlen; 10656 struct scsi_unmap_desc *buf, *end, *range; 10657 uint64_t lba; 10658 uint32_t len; 10659 10660 /* If not UNMAP -- go other way. */ 10661 if (io->io_hdr.io_type != CTL_IO_SCSI || 10662 io->scsiio.cdb[0] != UNMAP) 10663 return (CTL_ACTION_ERROR); 10664 10665 /* If UNMAP without data -- block and wait for data. */ 10666 ptrlen = (struct ctl_ptr_len_flags *) 10667 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10668 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10669 ptrlen->ptr == NULL) 10670 return (CTL_ACTION_BLOCK); 10671 10672 /* UNMAP with data -- check for collision. */ 10673 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10674 end = buf + ptrlen->len / sizeof(*buf); 10675 for (range = buf; range < end; range++) { 10676 lba = scsi_8btou64(range->lba); 10677 len = scsi_4btoul(range->length); 10678 if ((lba < lba2 + len2) && (lba + len > lba2)) 10679 return (CTL_ACTION_BLOCK); 10680 } 10681 return (CTL_ACTION_PASS); 10682} 10683 10684static ctl_action 10685ctl_extent_check(union ctl_io *io1, union ctl_io *io2) 10686{ 10687 uint64_t lba1, lba2; 10688 uint64_t len1, len2; 10689 int retval; 10690 10691 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10692 return (CTL_ACTION_ERROR); 10693 10694 retval = ctl_extent_check_unmap(io2, lba1, len1); 10695 if (retval != CTL_ACTION_ERROR) 10696 return (retval); 10697 10698 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10699 return (CTL_ACTION_ERROR); 10700 10701 return (ctl_extent_check_lba(lba1, len1, lba2, len2)); 10702} 10703 10704static ctl_action 10705ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10706 union ctl_io *ooa_io) 10707{ 10708 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10709 ctl_serialize_action *serialize_row; 10710 10711 /* 10712 * The initiator attempted multiple untagged commands at the same 10713 * time. Can't do that. 10714 */ 10715 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10716 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10717 && ((pending_io->io_hdr.nexus.targ_port == 10718 ooa_io->io_hdr.nexus.targ_port) 10719 && (pending_io->io_hdr.nexus.initid.id == 10720 ooa_io->io_hdr.nexus.initid.id)) 10721 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10722 return (CTL_ACTION_OVERLAP); 10723 10724 /* 10725 * The initiator attempted to send multiple tagged commands with 10726 * the same ID. (It's fine if different initiators have the same 10727 * tag ID.) 10728 * 10729 * Even if all of those conditions are true, we don't kill the I/O 10730 * if the command ahead of us has been aborted. We won't end up 10731 * sending it to the FETD, and it's perfectly legal to resend a 10732 * command with the same tag number as long as the previous 10733 * instance of this tag number has been aborted somehow. 10734 */ 10735 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10736 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10737 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10738 && ((pending_io->io_hdr.nexus.targ_port == 10739 ooa_io->io_hdr.nexus.targ_port) 10740 && (pending_io->io_hdr.nexus.initid.id == 10741 ooa_io->io_hdr.nexus.initid.id)) 10742 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10743 return (CTL_ACTION_OVERLAP_TAG); 10744 10745 /* 10746 * If we get a head of queue tag, SAM-3 says that we should 10747 * immediately execute it. 10748 * 10749 * What happens if this command would normally block for some other 10750 * reason? e.g. a request sense with a head of queue tag 10751 * immediately after a write. Normally that would block, but this 10752 * will result in its getting executed immediately... 10753 * 10754 * We currently return "pass" instead of "skip", so we'll end up 10755 * going through the rest of the queue to check for overlapped tags. 10756 * 10757 * XXX KDM check for other types of blockage first?? 10758 */ 10759 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10760 return (CTL_ACTION_PASS); 10761 10762 /* 10763 * Ordered tags have to block until all items ahead of them 10764 * have completed. If we get called with an ordered tag, we always 10765 * block, if something else is ahead of us in the queue. 10766 */ 10767 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 10768 return (CTL_ACTION_BLOCK); 10769 10770 /* 10771 * Simple tags get blocked until all head of queue and ordered tags 10772 * ahead of them have completed. I'm lumping untagged commands in 10773 * with simple tags here. XXX KDM is that the right thing to do? 10774 */ 10775 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10776 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 10777 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10778 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 10779 return (CTL_ACTION_BLOCK); 10780 10781 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 10782 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 10783 10784 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 10785 10786 switch (serialize_row[pending_entry->seridx]) { 10787 case CTL_SER_BLOCK: 10788 return (CTL_ACTION_BLOCK); 10789 case CTL_SER_EXTENT: 10790 return (ctl_extent_check(pending_io, ooa_io)); 10791 case CTL_SER_EXTENTOPT: 10792 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 10793 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 10794 return (ctl_extent_check(pending_io, ooa_io)); 10795 /* FALLTHROUGH */ 10796 case CTL_SER_PASS: 10797 return (CTL_ACTION_PASS); 10798 case CTL_SER_BLOCKOPT: 10799 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 10800 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 10801 return (CTL_ACTION_BLOCK); 10802 return (CTL_ACTION_PASS); 10803 case CTL_SER_SKIP: 10804 return (CTL_ACTION_SKIP); 10805 default: 10806 panic("invalid serialization value %d", 10807 serialize_row[pending_entry->seridx]); 10808 } 10809 10810 return (CTL_ACTION_ERROR); 10811} 10812 10813/* 10814 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 10815 * Assumptions: 10816 * - pending_io is generally either incoming, or on the blocked queue 10817 * - starting I/O is the I/O we want to start the check with. 10818 */ 10819static ctl_action 10820ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 10821 union ctl_io *starting_io) 10822{ 10823 union ctl_io *ooa_io; 10824 ctl_action action; 10825 10826 mtx_assert(&lun->lun_lock, MA_OWNED); 10827 10828 /* 10829 * Run back along the OOA queue, starting with the current 10830 * blocked I/O and going through every I/O before it on the 10831 * queue. If starting_io is NULL, we'll just end up returning 10832 * CTL_ACTION_PASS. 10833 */ 10834 for (ooa_io = starting_io; ooa_io != NULL; 10835 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 10836 ooa_links)){ 10837 10838 /* 10839 * This routine just checks to see whether 10840 * cur_blocked is blocked by ooa_io, which is ahead 10841 * of it in the queue. It doesn't queue/dequeue 10842 * cur_blocked. 10843 */ 10844 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 10845 switch (action) { 10846 case CTL_ACTION_BLOCK: 10847 case CTL_ACTION_OVERLAP: 10848 case CTL_ACTION_OVERLAP_TAG: 10849 case CTL_ACTION_SKIP: 10850 case CTL_ACTION_ERROR: 10851 return (action); 10852 break; /* NOTREACHED */ 10853 case CTL_ACTION_PASS: 10854 break; 10855 default: 10856 panic("invalid action %d", action); 10857 break; /* NOTREACHED */ 10858 } 10859 } 10860 10861 return (CTL_ACTION_PASS); 10862} 10863 10864/* 10865 * Assumptions: 10866 * - An I/O has just completed, and has been removed from the per-LUN OOA 10867 * queue, so some items on the blocked queue may now be unblocked. 10868 */ 10869static int 10870ctl_check_blocked(struct ctl_lun *lun) 10871{ 10872 union ctl_io *cur_blocked, *next_blocked; 10873 10874 mtx_assert(&lun->lun_lock, MA_OWNED); 10875 10876 /* 10877 * Run forward from the head of the blocked queue, checking each 10878 * entry against the I/Os prior to it on the OOA queue to see if 10879 * there is still any blockage. 10880 * 10881 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 10882 * with our removing a variable on it while it is traversing the 10883 * list. 10884 */ 10885 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 10886 cur_blocked != NULL; cur_blocked = next_blocked) { 10887 union ctl_io *prev_ooa; 10888 ctl_action action; 10889 10890 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 10891 blocked_links); 10892 10893 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 10894 ctl_ooaq, ooa_links); 10895 10896 /* 10897 * If cur_blocked happens to be the first item in the OOA 10898 * queue now, prev_ooa will be NULL, and the action 10899 * returned will just be CTL_ACTION_PASS. 10900 */ 10901 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 10902 10903 switch (action) { 10904 case CTL_ACTION_BLOCK: 10905 /* Nothing to do here, still blocked */ 10906 break; 10907 case CTL_ACTION_OVERLAP: 10908 case CTL_ACTION_OVERLAP_TAG: 10909 /* 10910 * This shouldn't happen! In theory we've already 10911 * checked this command for overlap... 10912 */ 10913 break; 10914 case CTL_ACTION_PASS: 10915 case CTL_ACTION_SKIP: { 10916 struct ctl_softc *softc; 10917 const struct ctl_cmd_entry *entry; 10918 int isc_retval; 10919 10920 /* 10921 * The skip case shouldn't happen, this transaction 10922 * should have never made it onto the blocked queue. 10923 */ 10924 /* 10925 * This I/O is no longer blocked, we can remove it 10926 * from the blocked queue. Since this is a TAILQ 10927 * (doubly linked list), we can do O(1) removals 10928 * from any place on the list. 10929 */ 10930 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 10931 blocked_links); 10932 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 10933 10934 if (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC){ 10935 /* 10936 * Need to send IO back to original side to 10937 * run 10938 */ 10939 union ctl_ha_msg msg_info; 10940 10941 msg_info.hdr.original_sc = 10942 cur_blocked->io_hdr.original_sc; 10943 msg_info.hdr.serializing_sc = cur_blocked; 10944 msg_info.hdr.msg_type = CTL_MSG_R2R; 10945 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 10946 &msg_info, sizeof(msg_info), 0)) > 10947 CTL_HA_STATUS_SUCCESS) { 10948 printf("CTL:Check Blocked error from " 10949 "ctl_ha_msg_send %d\n", 10950 isc_retval); 10951 } 10952 break; 10953 } 10954 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 10955 softc = control_softc; 10956 10957 /* 10958 * Check this I/O for LUN state changes that may 10959 * have happened while this command was blocked. 10960 * The LUN state may have been changed by a command 10961 * ahead of us in the queue, so we need to re-check 10962 * for any states that can be caused by SCSI 10963 * commands. 10964 */ 10965 if (ctl_scsiio_lun_check(softc, lun, entry, 10966 &cur_blocked->scsiio) == 0) { 10967 cur_blocked->io_hdr.flags |= 10968 CTL_FLAG_IS_WAS_ON_RTR; 10969 ctl_enqueue_rtr(cur_blocked); 10970 } else 10971 ctl_done(cur_blocked); 10972 break; 10973 } 10974 default: 10975 /* 10976 * This probably shouldn't happen -- we shouldn't 10977 * get CTL_ACTION_ERROR, or anything else. 10978 */ 10979 break; 10980 } 10981 } 10982 10983 return (CTL_RETVAL_COMPLETE); 10984} 10985 10986/* 10987 * This routine (with one exception) checks LUN flags that can be set by 10988 * commands ahead of us in the OOA queue. These flags have to be checked 10989 * when a command initially comes in, and when we pull a command off the 10990 * blocked queue and are preparing to execute it. The reason we have to 10991 * check these flags for commands on the blocked queue is that the LUN 10992 * state may have been changed by a command ahead of us while we're on the 10993 * blocked queue. 10994 * 10995 * Ordering is somewhat important with these checks, so please pay 10996 * careful attention to the placement of any new checks. 10997 */ 10998static int 10999ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 11000 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11001{ 11002 int retval; 11003 uint32_t residx; 11004 11005 retval = 0; 11006 11007 mtx_assert(&lun->lun_lock, MA_OWNED); 11008 11009 /* 11010 * If this shelf is a secondary shelf controller, we have to reject 11011 * any media access commands. 11012 */ 11013 if ((ctl_softc->flags & CTL_FLAG_ACTIVE_SHELF) == 0 && 11014 (entry->flags & CTL_CMD_FLAG_OK_ON_SECONDARY) == 0) { 11015 ctl_set_lun_standby(ctsio); 11016 retval = 1; 11017 goto bailout; 11018 } 11019 11020 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11021 if (lun->flags & CTL_LUN_READONLY) { 11022 ctl_set_sense(ctsio, /*current_error*/ 1, 11023 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11024 /*asc*/ 0x27, /*ascq*/ 0x01, SSD_ELEM_NONE); 11025 retval = 1; 11026 goto bailout; 11027 } 11028 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT] 11029 .eca_and_aen & SCP_SWP) != 0) { 11030 ctl_set_sense(ctsio, /*current_error*/ 1, 11031 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11032 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11033 retval = 1; 11034 goto bailout; 11035 } 11036 } 11037 11038 /* 11039 * Check for a reservation conflict. If this command isn't allowed 11040 * even on reserved LUNs, and if this initiator isn't the one who 11041 * reserved us, reject the command with a reservation conflict. 11042 */ 11043 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 11044 if ((lun->flags & CTL_LUN_RESERVED) 11045 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11046 if (lun->res_idx != residx) { 11047 ctl_set_reservation_conflict(ctsio); 11048 retval = 1; 11049 goto bailout; 11050 } 11051 } 11052 11053 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0 || 11054 (entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV)) { 11055 /* No reservation or command is allowed. */; 11056 } else if ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_WRESV) && 11057 (lun->res_type == SPR_TYPE_WR_EX || 11058 lun->res_type == SPR_TYPE_WR_EX_RO || 11059 lun->res_type == SPR_TYPE_WR_EX_AR)) { 11060 /* The command is allowed for Write Exclusive resv. */; 11061 } else { 11062 /* 11063 * if we aren't registered or it's a res holder type 11064 * reservation and this isn't the res holder then set a 11065 * conflict. 11066 */ 11067 if (ctl_get_prkey(lun, residx) == 0 11068 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 11069 ctl_set_reservation_conflict(ctsio); 11070 retval = 1; 11071 goto bailout; 11072 } 11073 11074 } 11075 11076 if ((lun->flags & CTL_LUN_OFFLINE) 11077 && ((entry->flags & CTL_CMD_FLAG_OK_ON_OFFLINE) == 0)) { 11078 ctl_set_lun_not_ready(ctsio); 11079 retval = 1; 11080 goto bailout; 11081 } 11082 11083 /* 11084 * If the LUN is stopped, see if this particular command is allowed 11085 * for a stopped lun. Otherwise, reject it with 0x04,0x02. 11086 */ 11087 if ((lun->flags & CTL_LUN_STOPPED) 11088 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 11089 /* "Logical unit not ready, initializing cmd. required" */ 11090 ctl_set_lun_stopped(ctsio); 11091 retval = 1; 11092 goto bailout; 11093 } 11094 11095 if ((lun->flags & CTL_LUN_INOPERABLE) 11096 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 11097 /* "Medium format corrupted" */ 11098 ctl_set_medium_format_corrupted(ctsio); 11099 retval = 1; 11100 goto bailout; 11101 } 11102 11103bailout: 11104 return (retval); 11105 11106} 11107 11108static void 11109ctl_failover_io(union ctl_io *io, int have_lock) 11110{ 11111 ctl_set_busy(&io->scsiio); 11112 ctl_done(io); 11113} 11114 11115static void 11116ctl_failover(void) 11117{ 11118 struct ctl_lun *lun; 11119 struct ctl_softc *ctl_softc; 11120 union ctl_io *next_io, *pending_io; 11121 union ctl_io *io; 11122 int lun_idx; 11123 int i; 11124 11125 ctl_softc = control_softc; 11126 11127 mtx_lock(&ctl_softc->ctl_lock); 11128 /* 11129 * Remove any cmds from the other SC from the rtr queue. These 11130 * will obviously only be for LUNs for which we're the primary. 11131 * We can't send status or get/send data for these commands. 11132 * Since they haven't been executed yet, we can just remove them. 11133 * We'll either abort them or delete them below, depending on 11134 * which HA mode we're in. 11135 */ 11136#ifdef notyet 11137 mtx_lock(&ctl_softc->queue_lock); 11138 for (io = (union ctl_io *)STAILQ_FIRST(&ctl_softc->rtr_queue); 11139 io != NULL; io = next_io) { 11140 next_io = (union ctl_io *)STAILQ_NEXT(&io->io_hdr, links); 11141 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11142 STAILQ_REMOVE(&ctl_softc->rtr_queue, &io->io_hdr, 11143 ctl_io_hdr, links); 11144 } 11145 mtx_unlock(&ctl_softc->queue_lock); 11146#endif 11147 11148 for (lun_idx=0; lun_idx < ctl_softc->num_luns; lun_idx++) { 11149 lun = ctl_softc->ctl_luns[lun_idx]; 11150 if (lun==NULL) 11151 continue; 11152 11153 /* 11154 * Processor LUNs are primary on both sides. 11155 * XXX will this always be true? 11156 */ 11157 if (lun->be_lun->lun_type == T_PROCESSOR) 11158 continue; 11159 11160 if ((lun->flags & CTL_LUN_PRIMARY_SC) 11161 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11162 printf("FAILOVER: primary lun %d\n", lun_idx); 11163 /* 11164 * Remove all commands from the other SC. First from the 11165 * blocked queue then from the ooa queue. Once we have 11166 * removed them. Call ctl_check_blocked to see if there 11167 * is anything that can run. 11168 */ 11169 for (io = (union ctl_io *)TAILQ_FIRST( 11170 &lun->blocked_queue); io != NULL; io = next_io) { 11171 11172 next_io = (union ctl_io *)TAILQ_NEXT( 11173 &io->io_hdr, blocked_links); 11174 11175 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11176 TAILQ_REMOVE(&lun->blocked_queue, 11177 &io->io_hdr,blocked_links); 11178 io->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11179 TAILQ_REMOVE(&lun->ooa_queue, 11180 &io->io_hdr, ooa_links); 11181 11182 ctl_free_io(io); 11183 } 11184 } 11185 11186 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11187 io != NULL; io = next_io) { 11188 11189 next_io = (union ctl_io *)TAILQ_NEXT( 11190 &io->io_hdr, ooa_links); 11191 11192 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11193 11194 TAILQ_REMOVE(&lun->ooa_queue, 11195 &io->io_hdr, 11196 ooa_links); 11197 11198 ctl_free_io(io); 11199 } 11200 } 11201 ctl_check_blocked(lun); 11202 } else if ((lun->flags & CTL_LUN_PRIMARY_SC) 11203 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11204 11205 printf("FAILOVER: primary lun %d\n", lun_idx); 11206 /* 11207 * Abort all commands from the other SC. We can't 11208 * send status back for them now. These should get 11209 * cleaned up when they are completed or come out 11210 * for a datamove operation. 11211 */ 11212 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11213 io != NULL; io = next_io) { 11214 next_io = (union ctl_io *)TAILQ_NEXT( 11215 &io->io_hdr, ooa_links); 11216 11217 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11218 io->io_hdr.flags |= CTL_FLAG_ABORT; 11219 } 11220 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11221 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11222 11223 printf("FAILOVER: secondary lun %d\n", lun_idx); 11224 11225 lun->flags |= CTL_LUN_PRIMARY_SC; 11226 11227 /* 11228 * We send all I/O that was sent to this controller 11229 * and redirected to the other side back with 11230 * busy status, and have the initiator retry it. 11231 * Figuring out how much data has been transferred, 11232 * etc. and picking up where we left off would be 11233 * very tricky. 11234 * 11235 * XXX KDM need to remove I/O from the blocked 11236 * queue as well! 11237 */ 11238 for (pending_io = (union ctl_io *)TAILQ_FIRST( 11239 &lun->ooa_queue); pending_io != NULL; 11240 pending_io = next_io) { 11241 11242 next_io = (union ctl_io *)TAILQ_NEXT( 11243 &pending_io->io_hdr, ooa_links); 11244 11245 pending_io->io_hdr.flags &= 11246 ~CTL_FLAG_SENT_2OTHER_SC; 11247 11248 if (pending_io->io_hdr.flags & 11249 CTL_FLAG_IO_ACTIVE) { 11250 pending_io->io_hdr.flags |= 11251 CTL_FLAG_FAILOVER; 11252 } else { 11253 ctl_set_busy(&pending_io->scsiio); 11254 ctl_done(pending_io); 11255 } 11256 } 11257 11258 /* 11259 * Build Unit Attention 11260 */ 11261 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11262 lun->pending_ua[i] |= 11263 CTL_UA_ASYM_ACC_CHANGE; 11264 } 11265 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11266 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11267 printf("FAILOVER: secondary lun %d\n", lun_idx); 11268 /* 11269 * if the first io on the OOA is not on the RtR queue 11270 * add it. 11271 */ 11272 lun->flags |= CTL_LUN_PRIMARY_SC; 11273 11274 pending_io = (union ctl_io *)TAILQ_FIRST( 11275 &lun->ooa_queue); 11276 if (pending_io==NULL) { 11277 printf("Nothing on OOA queue\n"); 11278 continue; 11279 } 11280 11281 pending_io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11282 if ((pending_io->io_hdr.flags & 11283 CTL_FLAG_IS_WAS_ON_RTR) == 0) { 11284 pending_io->io_hdr.flags |= 11285 CTL_FLAG_IS_WAS_ON_RTR; 11286 ctl_enqueue_rtr(pending_io); 11287 } 11288#if 0 11289 else 11290 { 11291 printf("Tag 0x%04x is running\n", 11292 pending_io->scsiio.tag_num); 11293 } 11294#endif 11295 11296 next_io = (union ctl_io *)TAILQ_NEXT( 11297 &pending_io->io_hdr, ooa_links); 11298 for (pending_io=next_io; pending_io != NULL; 11299 pending_io = next_io) { 11300 pending_io->io_hdr.flags &= 11301 ~CTL_FLAG_SENT_2OTHER_SC; 11302 next_io = (union ctl_io *)TAILQ_NEXT( 11303 &pending_io->io_hdr, ooa_links); 11304 if (pending_io->io_hdr.flags & 11305 CTL_FLAG_IS_WAS_ON_RTR) { 11306#if 0 11307 printf("Tag 0x%04x is running\n", 11308 pending_io->scsiio.tag_num); 11309#endif 11310 continue; 11311 } 11312 11313 switch (ctl_check_ooa(lun, pending_io, 11314 (union ctl_io *)TAILQ_PREV( 11315 &pending_io->io_hdr, ctl_ooaq, 11316 ooa_links))) { 11317 11318 case CTL_ACTION_BLOCK: 11319 TAILQ_INSERT_TAIL(&lun->blocked_queue, 11320 &pending_io->io_hdr, 11321 blocked_links); 11322 pending_io->io_hdr.flags |= 11323 CTL_FLAG_BLOCKED; 11324 break; 11325 case CTL_ACTION_PASS: 11326 case CTL_ACTION_SKIP: 11327 pending_io->io_hdr.flags |= 11328 CTL_FLAG_IS_WAS_ON_RTR; 11329 ctl_enqueue_rtr(pending_io); 11330 break; 11331 case CTL_ACTION_OVERLAP: 11332 ctl_set_overlapped_cmd( 11333 (struct ctl_scsiio *)pending_io); 11334 ctl_done(pending_io); 11335 break; 11336 case CTL_ACTION_OVERLAP_TAG: 11337 ctl_set_overlapped_tag( 11338 (struct ctl_scsiio *)pending_io, 11339 pending_io->scsiio.tag_num & 0xff); 11340 ctl_done(pending_io); 11341 break; 11342 case CTL_ACTION_ERROR: 11343 default: 11344 ctl_set_internal_failure( 11345 (struct ctl_scsiio *)pending_io, 11346 0, // sks_valid 11347 0); //retry count 11348 ctl_done(pending_io); 11349 break; 11350 } 11351 } 11352 11353 /* 11354 * Build Unit Attention 11355 */ 11356 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11357 lun->pending_ua[i] |= 11358 CTL_UA_ASYM_ACC_CHANGE; 11359 } 11360 } else { 11361 panic("Unhandled HA mode failover, LUN flags = %#x, " 11362 "ha_mode = #%x", lun->flags, ctl_softc->ha_mode); 11363 } 11364 } 11365 ctl_pause_rtr = 0; 11366 mtx_unlock(&ctl_softc->ctl_lock); 11367} 11368 11369static int 11370ctl_scsiio_precheck(struct ctl_softc *ctl_softc, struct ctl_scsiio *ctsio) 11371{ 11372 struct ctl_lun *lun; 11373 const struct ctl_cmd_entry *entry; 11374 uint32_t initidx, targ_lun; 11375 int retval; 11376 11377 retval = 0; 11378 11379 lun = NULL; 11380 11381 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11382 if ((targ_lun < CTL_MAX_LUNS) 11383 && ((lun = ctl_softc->ctl_luns[targ_lun]) != NULL)) { 11384 /* 11385 * If the LUN is invalid, pretend that it doesn't exist. 11386 * It will go away as soon as all pending I/O has been 11387 * completed. 11388 */ 11389 mtx_lock(&lun->lun_lock); 11390 if (lun->flags & CTL_LUN_DISABLED) { 11391 mtx_unlock(&lun->lun_lock); 11392 lun = NULL; 11393 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11394 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11395 } else { 11396 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11397 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11398 lun->be_lun; 11399 if (lun->be_lun->lun_type == T_PROCESSOR) { 11400 ctsio->io_hdr.flags |= CTL_FLAG_CONTROL_DEV; 11401 } 11402 11403 /* 11404 * Every I/O goes into the OOA queue for a 11405 * particular LUN, and stays there until completion. 11406 */ 11407 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11408 ooa_links); 11409 } 11410 } else { 11411 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11412 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11413 } 11414 11415 /* Get command entry and return error if it is unsuppotyed. */ 11416 entry = ctl_validate_command(ctsio); 11417 if (entry == NULL) { 11418 if (lun) 11419 mtx_unlock(&lun->lun_lock); 11420 return (retval); 11421 } 11422 11423 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11424 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11425 11426 /* 11427 * Check to see whether we can send this command to LUNs that don't 11428 * exist. This should pretty much only be the case for inquiry 11429 * and request sense. Further checks, below, really require having 11430 * a LUN, so we can't really check the command anymore. Just put 11431 * it on the rtr queue. 11432 */ 11433 if (lun == NULL) { 11434 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) { 11435 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11436 ctl_enqueue_rtr((union ctl_io *)ctsio); 11437 return (retval); 11438 } 11439 11440 ctl_set_unsupported_lun(ctsio); 11441 ctl_done((union ctl_io *)ctsio); 11442 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11443 return (retval); 11444 } else { 11445 /* 11446 * Make sure we support this particular command on this LUN. 11447 * e.g., we don't support writes to the control LUN. 11448 */ 11449 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11450 mtx_unlock(&lun->lun_lock); 11451 ctl_set_invalid_opcode(ctsio); 11452 ctl_done((union ctl_io *)ctsio); 11453 return (retval); 11454 } 11455 } 11456 11457 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11458 11459#ifdef CTL_WITH_CA 11460 /* 11461 * If we've got a request sense, it'll clear the contingent 11462 * allegiance condition. Otherwise, if we have a CA condition for 11463 * this initiator, clear it, because it sent down a command other 11464 * than request sense. 11465 */ 11466 if ((ctsio->cdb[0] != REQUEST_SENSE) 11467 && (ctl_is_set(lun->have_ca, initidx))) 11468 ctl_clear_mask(lun->have_ca, initidx); 11469#endif 11470 11471 /* 11472 * If the command has this flag set, it handles its own unit 11473 * attention reporting, we shouldn't do anything. Otherwise we 11474 * check for any pending unit attentions, and send them back to the 11475 * initiator. We only do this when a command initially comes in, 11476 * not when we pull it off the blocked queue. 11477 * 11478 * According to SAM-3, section 5.3.2, the order that things get 11479 * presented back to the host is basically unit attentions caused 11480 * by some sort of reset event, busy status, reservation conflicts 11481 * or task set full, and finally any other status. 11482 * 11483 * One issue here is that some of the unit attentions we report 11484 * don't fall into the "reset" category (e.g. "reported luns data 11485 * has changed"). So reporting it here, before the reservation 11486 * check, may be technically wrong. I guess the only thing to do 11487 * would be to check for and report the reset events here, and then 11488 * check for the other unit attention types after we check for a 11489 * reservation conflict. 11490 * 11491 * XXX KDM need to fix this 11492 */ 11493 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11494 ctl_ua_type ua_type; 11495 11496 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 11497 scsi_sense_data_type sense_format; 11498 11499 if (lun != NULL) 11500 sense_format = (lun->flags & 11501 CTL_LUN_SENSE_DESC) ? SSD_TYPE_DESC : 11502 SSD_TYPE_FIXED; 11503 else 11504 sense_format = SSD_TYPE_FIXED; 11505 11506 ua_type = ctl_build_ua(&lun->pending_ua[initidx], 11507 &ctsio->sense_data, sense_format); 11508 if (ua_type != CTL_UA_NONE) { 11509 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11510 ctsio->io_hdr.status = CTL_SCSI_ERROR | 11511 CTL_AUTOSENSE; 11512 ctsio->sense_len = SSD_FULL_SIZE; 11513 mtx_unlock(&lun->lun_lock); 11514 ctl_done((union ctl_io *)ctsio); 11515 return (retval); 11516 } 11517 } 11518 } 11519 11520 11521 if (ctl_scsiio_lun_check(ctl_softc, lun, entry, ctsio) != 0) { 11522 mtx_unlock(&lun->lun_lock); 11523 ctl_done((union ctl_io *)ctsio); 11524 return (retval); 11525 } 11526 11527 /* 11528 * XXX CHD this is where we want to send IO to other side if 11529 * this LUN is secondary on this SC. We will need to make a copy 11530 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11531 * the copy we send as FROM_OTHER. 11532 * We also need to stuff the address of the original IO so we can 11533 * find it easily. Something similar will need be done on the other 11534 * side so when we are done we can find the copy. 11535 */ 11536 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11537 union ctl_ha_msg msg_info; 11538 int isc_retval; 11539 11540 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11541 11542 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11543 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11544#if 0 11545 printf("1. ctsio %p\n", ctsio); 11546#endif 11547 msg_info.hdr.serializing_sc = NULL; 11548 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11549 msg_info.scsi.tag_num = ctsio->tag_num; 11550 msg_info.scsi.tag_type = ctsio->tag_type; 11551 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11552 11553 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11554 11555 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11556 (void *)&msg_info, sizeof(msg_info), 0)) > 11557 CTL_HA_STATUS_SUCCESS) { 11558 printf("CTL:precheck, ctl_ha_msg_send returned %d\n", 11559 isc_retval); 11560 printf("CTL:opcode is %x\n", ctsio->cdb[0]); 11561 } else { 11562#if 0 11563 printf("CTL:Precheck sent msg, opcode is %x\n",opcode); 11564#endif 11565 } 11566 11567 /* 11568 * XXX KDM this I/O is off the incoming queue, but hasn't 11569 * been inserted on any other queue. We may need to come 11570 * up with a holding queue while we wait for serialization 11571 * so that we have an idea of what we're waiting for from 11572 * the other side. 11573 */ 11574 mtx_unlock(&lun->lun_lock); 11575 return (retval); 11576 } 11577 11578 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11579 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11580 ctl_ooaq, ooa_links))) { 11581 case CTL_ACTION_BLOCK: 11582 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11583 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11584 blocked_links); 11585 mtx_unlock(&lun->lun_lock); 11586 return (retval); 11587 case CTL_ACTION_PASS: 11588 case CTL_ACTION_SKIP: 11589 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11590 mtx_unlock(&lun->lun_lock); 11591 ctl_enqueue_rtr((union ctl_io *)ctsio); 11592 break; 11593 case CTL_ACTION_OVERLAP: 11594 mtx_unlock(&lun->lun_lock); 11595 ctl_set_overlapped_cmd(ctsio); 11596 ctl_done((union ctl_io *)ctsio); 11597 break; 11598 case CTL_ACTION_OVERLAP_TAG: 11599 mtx_unlock(&lun->lun_lock); 11600 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11601 ctl_done((union ctl_io *)ctsio); 11602 break; 11603 case CTL_ACTION_ERROR: 11604 default: 11605 mtx_unlock(&lun->lun_lock); 11606 ctl_set_internal_failure(ctsio, 11607 /*sks_valid*/ 0, 11608 /*retry_count*/ 0); 11609 ctl_done((union ctl_io *)ctsio); 11610 break; 11611 } 11612 return (retval); 11613} 11614 11615const struct ctl_cmd_entry * 11616ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11617{ 11618 const struct ctl_cmd_entry *entry; 11619 int service_action; 11620 11621 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11622 if (sa) 11623 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11624 if (entry->flags & CTL_CMD_FLAG_SA5) { 11625 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11626 entry = &((const struct ctl_cmd_entry *) 11627 entry->execute)[service_action]; 11628 } 11629 return (entry); 11630} 11631 11632const struct ctl_cmd_entry * 11633ctl_validate_command(struct ctl_scsiio *ctsio) 11634{ 11635 const struct ctl_cmd_entry *entry; 11636 int i, sa; 11637 uint8_t diff; 11638 11639 entry = ctl_get_cmd_entry(ctsio, &sa); 11640 if (entry->execute == NULL) { 11641 if (sa) 11642 ctl_set_invalid_field(ctsio, 11643 /*sks_valid*/ 1, 11644 /*command*/ 1, 11645 /*field*/ 1, 11646 /*bit_valid*/ 1, 11647 /*bit*/ 4); 11648 else 11649 ctl_set_invalid_opcode(ctsio); 11650 ctl_done((union ctl_io *)ctsio); 11651 return (NULL); 11652 } 11653 KASSERT(entry->length > 0, 11654 ("Not defined length for command 0x%02x/0x%02x", 11655 ctsio->cdb[0], ctsio->cdb[1])); 11656 for (i = 1; i < entry->length; i++) { 11657 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11658 if (diff == 0) 11659 continue; 11660 ctl_set_invalid_field(ctsio, 11661 /*sks_valid*/ 1, 11662 /*command*/ 1, 11663 /*field*/ i, 11664 /*bit_valid*/ 1, 11665 /*bit*/ fls(diff) - 1); 11666 ctl_done((union ctl_io *)ctsio); 11667 return (NULL); 11668 } 11669 return (entry); 11670} 11671 11672static int 11673ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11674{ 11675 11676 switch (lun_type) { 11677 case T_PROCESSOR: 11678 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) && 11679 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11680 return (0); 11681 break; 11682 case T_DIRECT: 11683 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) && 11684 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11685 return (0); 11686 break; 11687 default: 11688 return (0); 11689 } 11690 return (1); 11691} 11692 11693static int 11694ctl_scsiio(struct ctl_scsiio *ctsio) 11695{ 11696 int retval; 11697 const struct ctl_cmd_entry *entry; 11698 11699 retval = CTL_RETVAL_COMPLETE; 11700 11701 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11702 11703 entry = ctl_get_cmd_entry(ctsio, NULL); 11704 11705 /* 11706 * If this I/O has been aborted, just send it straight to 11707 * ctl_done() without executing it. 11708 */ 11709 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11710 ctl_done((union ctl_io *)ctsio); 11711 goto bailout; 11712 } 11713 11714 /* 11715 * All the checks should have been handled by ctl_scsiio_precheck(). 11716 * We should be clear now to just execute the I/O. 11717 */ 11718 retval = entry->execute(ctsio); 11719 11720bailout: 11721 return (retval); 11722} 11723 11724/* 11725 * Since we only implement one target right now, a bus reset simply resets 11726 * our single target. 11727 */ 11728static int 11729ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io) 11730{ 11731 return(ctl_target_reset(ctl_softc, io, CTL_UA_BUS_RESET)); 11732} 11733 11734static int 11735ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 11736 ctl_ua_type ua_type) 11737{ 11738 struct ctl_lun *lun; 11739 int retval; 11740 11741 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11742 union ctl_ha_msg msg_info; 11743 11744 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11745 msg_info.hdr.nexus = io->io_hdr.nexus; 11746 if (ua_type==CTL_UA_TARG_RESET) 11747 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11748 else 11749 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11750 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11751 msg_info.hdr.original_sc = NULL; 11752 msg_info.hdr.serializing_sc = NULL; 11753 if (CTL_HA_STATUS_SUCCESS != ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11754 (void *)&msg_info, sizeof(msg_info), 0)) { 11755 } 11756 } 11757 retval = 0; 11758 11759 mtx_lock(&ctl_softc->ctl_lock); 11760 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) 11761 retval += ctl_lun_reset(lun, io, ua_type); 11762 mtx_unlock(&ctl_softc->ctl_lock); 11763 11764 return (retval); 11765} 11766 11767/* 11768 * The LUN should always be set. The I/O is optional, and is used to 11769 * distinguish between I/Os sent by this initiator, and by other 11770 * initiators. We set unit attention for initiators other than this one. 11771 * SAM-3 is vague on this point. It does say that a unit attention should 11772 * be established for other initiators when a LUN is reset (see section 11773 * 5.7.3), but it doesn't specifically say that the unit attention should 11774 * be established for this particular initiator when a LUN is reset. Here 11775 * is the relevant text, from SAM-3 rev 8: 11776 * 11777 * 5.7.2 When a SCSI initiator port aborts its own tasks 11778 * 11779 * When a SCSI initiator port causes its own task(s) to be aborted, no 11780 * notification that the task(s) have been aborted shall be returned to 11781 * the SCSI initiator port other than the completion response for the 11782 * command or task management function action that caused the task(s) to 11783 * be aborted and notification(s) associated with related effects of the 11784 * action (e.g., a reset unit attention condition). 11785 * 11786 * XXX KDM for now, we're setting unit attention for all initiators. 11787 */ 11788static int 11789ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11790{ 11791 union ctl_io *xio; 11792#if 0 11793 uint32_t initidx; 11794#endif 11795 int i; 11796 11797 mtx_lock(&lun->lun_lock); 11798 /* 11799 * Run through the OOA queue and abort each I/O. 11800 */ 11801#if 0 11802 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 11803#endif 11804 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11805 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11806 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11807 } 11808 11809 /* 11810 * This version sets unit attention for every 11811 */ 11812#if 0 11813 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11814 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11815 if (initidx == i) 11816 continue; 11817 lun->pending_ua[i] |= ua_type; 11818 } 11819#endif 11820 11821 /* 11822 * A reset (any kind, really) clears reservations established with 11823 * RESERVE/RELEASE. It does not clear reservations established 11824 * with PERSISTENT RESERVE OUT, but we don't support that at the 11825 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11826 * reservations made with the RESERVE/RELEASE commands, because 11827 * those commands are obsolete in SPC-3. 11828 */ 11829 lun->flags &= ~CTL_LUN_RESERVED; 11830 11831 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11832#ifdef CTL_WITH_CA 11833 ctl_clear_mask(lun->have_ca, i); 11834#endif 11835 lun->pending_ua[i] |= ua_type; 11836 } 11837 mtx_unlock(&lun->lun_lock); 11838 11839 return (0); 11840} 11841 11842static void 11843ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11844 int other_sc) 11845{ 11846 union ctl_io *xio; 11847 11848 mtx_assert(&lun->lun_lock, MA_OWNED); 11849 11850 /* 11851 * Run through the OOA queue and attempt to find the given I/O. 11852 * The target port, initiator ID, tag type and tag number have to 11853 * match the values that we got from the initiator. If we have an 11854 * untagged command to abort, simply abort the first untagged command 11855 * we come to. We only allow one untagged command at a time of course. 11856 */ 11857 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11858 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11859 11860 if ((targ_port == UINT32_MAX || 11861 targ_port == xio->io_hdr.nexus.targ_port) && 11862 (init_id == UINT32_MAX || 11863 init_id == xio->io_hdr.nexus.initid.id)) { 11864 if (targ_port != xio->io_hdr.nexus.targ_port || 11865 init_id != xio->io_hdr.nexus.initid.id) 11866 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 11867 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11868 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11869 union ctl_ha_msg msg_info; 11870 11871 msg_info.hdr.nexus = xio->io_hdr.nexus; 11872 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 11873 msg_info.task.tag_num = xio->scsiio.tag_num; 11874 msg_info.task.tag_type = xio->scsiio.tag_type; 11875 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11876 msg_info.hdr.original_sc = NULL; 11877 msg_info.hdr.serializing_sc = NULL; 11878 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11879 (void *)&msg_info, sizeof(msg_info), 0); 11880 } 11881 } 11882 } 11883} 11884 11885static int 11886ctl_abort_task_set(union ctl_io *io) 11887{ 11888 struct ctl_softc *softc = control_softc; 11889 struct ctl_lun *lun; 11890 uint32_t targ_lun; 11891 11892 /* 11893 * Look up the LUN. 11894 */ 11895 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11896 mtx_lock(&softc->ctl_lock); 11897 if ((targ_lun < CTL_MAX_LUNS) && (softc->ctl_luns[targ_lun] != NULL)) 11898 lun = softc->ctl_luns[targ_lun]; 11899 else { 11900 mtx_unlock(&softc->ctl_lock); 11901 return (1); 11902 } 11903 11904 mtx_lock(&lun->lun_lock); 11905 mtx_unlock(&softc->ctl_lock); 11906 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 11907 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11908 io->io_hdr.nexus.initid.id, 11909 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11910 } else { /* CTL_TASK_CLEAR_TASK_SET */ 11911 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 11912 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11913 } 11914 mtx_unlock(&lun->lun_lock); 11915 return (0); 11916} 11917 11918static int 11919ctl_i_t_nexus_reset(union ctl_io *io) 11920{ 11921 struct ctl_softc *softc = control_softc; 11922 struct ctl_lun *lun; 11923 uint32_t initidx, residx; 11924 11925 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11926 residx = ctl_get_resindex(&io->io_hdr.nexus); 11927 mtx_lock(&softc->ctl_lock); 11928 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11929 mtx_lock(&lun->lun_lock); 11930 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11931 io->io_hdr.nexus.initid.id, 11932 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11933#ifdef CTL_WITH_CA 11934 ctl_clear_mask(lun->have_ca, initidx); 11935#endif 11936 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 11937 lun->flags &= ~CTL_LUN_RESERVED; 11938 lun->pending_ua[initidx] |= CTL_UA_I_T_NEXUS_LOSS; 11939 mtx_unlock(&lun->lun_lock); 11940 } 11941 mtx_unlock(&softc->ctl_lock); 11942 return (0); 11943} 11944 11945static int 11946ctl_abort_task(union ctl_io *io) 11947{ 11948 union ctl_io *xio; 11949 struct ctl_lun *lun; 11950 struct ctl_softc *ctl_softc; 11951#if 0 11952 struct sbuf sb; 11953 char printbuf[128]; 11954#endif 11955 int found; 11956 uint32_t targ_lun; 11957 11958 ctl_softc = control_softc; 11959 found = 0; 11960 11961 /* 11962 * Look up the LUN. 11963 */ 11964 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11965 mtx_lock(&ctl_softc->ctl_lock); 11966 if ((targ_lun < CTL_MAX_LUNS) 11967 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 11968 lun = ctl_softc->ctl_luns[targ_lun]; 11969 else { 11970 mtx_unlock(&ctl_softc->ctl_lock); 11971 return (1); 11972 } 11973 11974#if 0 11975 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 11976 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 11977#endif 11978 11979 mtx_lock(&lun->lun_lock); 11980 mtx_unlock(&ctl_softc->ctl_lock); 11981 /* 11982 * Run through the OOA queue and attempt to find the given I/O. 11983 * The target port, initiator ID, tag type and tag number have to 11984 * match the values that we got from the initiator. If we have an 11985 * untagged command to abort, simply abort the first untagged command 11986 * we come to. We only allow one untagged command at a time of course. 11987 */ 11988#if 0 11989 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 11990#endif 11991 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11992 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11993#if 0 11994 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 11995 11996 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 11997 lun->lun, xio->scsiio.tag_num, 11998 xio->scsiio.tag_type, 11999 (xio->io_hdr.blocked_links.tqe_prev 12000 == NULL) ? "" : " BLOCKED", 12001 (xio->io_hdr.flags & 12002 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12003 (xio->io_hdr.flags & 12004 CTL_FLAG_ABORT) ? " ABORT" : "", 12005 (xio->io_hdr.flags & 12006 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12007 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12008 sbuf_finish(&sb); 12009 printf("%s\n", sbuf_data(&sb)); 12010#endif 12011 12012 if ((xio->io_hdr.nexus.targ_port == io->io_hdr.nexus.targ_port) 12013 && (xio->io_hdr.nexus.initid.id == 12014 io->io_hdr.nexus.initid.id)) { 12015 /* 12016 * If the abort says that the task is untagged, the 12017 * task in the queue must be untagged. Otherwise, 12018 * we just check to see whether the tag numbers 12019 * match. This is because the QLogic firmware 12020 * doesn't pass back the tag type in an abort 12021 * request. 12022 */ 12023#if 0 12024 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12025 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12026 || (xio->scsiio.tag_num == io->taskio.tag_num)) { 12027#endif 12028 /* 12029 * XXX KDM we've got problems with FC, because it 12030 * doesn't send down a tag type with aborts. So we 12031 * can only really go by the tag number... 12032 * This may cause problems with parallel SCSI. 12033 * Need to figure that out!! 12034 */ 12035 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12036 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12037 found = 1; 12038 if ((io->io_hdr.flags & 12039 CTL_FLAG_FROM_OTHER_SC) == 0 && 12040 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12041 union ctl_ha_msg msg_info; 12042 12043 io->io_hdr.flags |= 12044 CTL_FLAG_SENT_2OTHER_SC; 12045 msg_info.hdr.nexus = io->io_hdr.nexus; 12046 msg_info.task.task_action = 12047 CTL_TASK_ABORT_TASK; 12048 msg_info.task.tag_num = 12049 io->taskio.tag_num; 12050 msg_info.task.tag_type = 12051 io->taskio.tag_type; 12052 msg_info.hdr.msg_type = 12053 CTL_MSG_MANAGE_TASKS; 12054 msg_info.hdr.original_sc = NULL; 12055 msg_info.hdr.serializing_sc = NULL; 12056#if 0 12057 printf("Sent Abort to other side\n"); 12058#endif 12059 if (CTL_HA_STATUS_SUCCESS != 12060 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12061 (void *)&msg_info, 12062 sizeof(msg_info), 0)) { 12063 } 12064 } 12065#if 0 12066 printf("ctl_abort_task: found I/O to abort\n"); 12067#endif 12068 break; 12069 } 12070 } 12071 } 12072 mtx_unlock(&lun->lun_lock); 12073 12074 if (found == 0) { 12075 /* 12076 * This isn't really an error. It's entirely possible for 12077 * the abort and command completion to cross on the wire. 12078 * This is more of an informative/diagnostic error. 12079 */ 12080#if 0 12081 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12082 "%d:%d:%d:%d tag %d type %d\n", 12083 io->io_hdr.nexus.initid.id, 12084 io->io_hdr.nexus.targ_port, 12085 io->io_hdr.nexus.targ_target.id, 12086 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12087 io->taskio.tag_type); 12088#endif 12089 } 12090 return (0); 12091} 12092 12093static void 12094ctl_run_task(union ctl_io *io) 12095{ 12096 struct ctl_softc *ctl_softc = control_softc; 12097 int retval = 1; 12098 const char *task_desc; 12099 12100 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12101 12102 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12103 ("ctl_run_task: Unextected io_type %d\n", 12104 io->io_hdr.io_type)); 12105 12106 task_desc = ctl_scsi_task_string(&io->taskio); 12107 if (task_desc != NULL) { 12108#ifdef NEEDTOPORT 12109 csevent_log(CSC_CTL | CSC_SHELF_SW | 12110 CTL_TASK_REPORT, 12111 csevent_LogType_Trace, 12112 csevent_Severity_Information, 12113 csevent_AlertLevel_Green, 12114 csevent_FRU_Firmware, 12115 csevent_FRU_Unknown, 12116 "CTL: received task: %s",task_desc); 12117#endif 12118 } else { 12119#ifdef NEEDTOPORT 12120 csevent_log(CSC_CTL | CSC_SHELF_SW | 12121 CTL_TASK_REPORT, 12122 csevent_LogType_Trace, 12123 csevent_Severity_Information, 12124 csevent_AlertLevel_Green, 12125 csevent_FRU_Firmware, 12126 csevent_FRU_Unknown, 12127 "CTL: received unknown task " 12128 "type: %d (%#x)", 12129 io->taskio.task_action, 12130 io->taskio.task_action); 12131#endif 12132 } 12133 switch (io->taskio.task_action) { 12134 case CTL_TASK_ABORT_TASK: 12135 retval = ctl_abort_task(io); 12136 break; 12137 case CTL_TASK_ABORT_TASK_SET: 12138 case CTL_TASK_CLEAR_TASK_SET: 12139 retval = ctl_abort_task_set(io); 12140 break; 12141 case CTL_TASK_CLEAR_ACA: 12142 break; 12143 case CTL_TASK_I_T_NEXUS_RESET: 12144 retval = ctl_i_t_nexus_reset(io); 12145 break; 12146 case CTL_TASK_LUN_RESET: { 12147 struct ctl_lun *lun; 12148 uint32_t targ_lun; 12149 12150 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12151 mtx_lock(&ctl_softc->ctl_lock); 12152 if ((targ_lun < CTL_MAX_LUNS) 12153 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12154 lun = ctl_softc->ctl_luns[targ_lun]; 12155 else { 12156 mtx_unlock(&ctl_softc->ctl_lock); 12157 retval = 1; 12158 break; 12159 } 12160 12161 if (!(io->io_hdr.flags & 12162 CTL_FLAG_FROM_OTHER_SC)) { 12163 union ctl_ha_msg msg_info; 12164 12165 io->io_hdr.flags |= 12166 CTL_FLAG_SENT_2OTHER_SC; 12167 msg_info.hdr.msg_type = 12168 CTL_MSG_MANAGE_TASKS; 12169 msg_info.hdr.nexus = io->io_hdr.nexus; 12170 msg_info.task.task_action = 12171 CTL_TASK_LUN_RESET; 12172 msg_info.hdr.original_sc = NULL; 12173 msg_info.hdr.serializing_sc = NULL; 12174 if (CTL_HA_STATUS_SUCCESS != 12175 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12176 (void *)&msg_info, 12177 sizeof(msg_info), 0)) { 12178 } 12179 } 12180 12181 retval = ctl_lun_reset(lun, io, 12182 CTL_UA_LUN_RESET); 12183 mtx_unlock(&ctl_softc->ctl_lock); 12184 break; 12185 } 12186 case CTL_TASK_TARGET_RESET: 12187 retval = ctl_target_reset(ctl_softc, io, CTL_UA_TARG_RESET); 12188 break; 12189 case CTL_TASK_BUS_RESET: 12190 retval = ctl_bus_reset(ctl_softc, io); 12191 break; 12192 case CTL_TASK_PORT_LOGIN: 12193 break; 12194 case CTL_TASK_PORT_LOGOUT: 12195 break; 12196 default: 12197 printf("ctl_run_task: got unknown task management event %d\n", 12198 io->taskio.task_action); 12199 break; 12200 } 12201 if (retval == 0) 12202 io->io_hdr.status = CTL_SUCCESS; 12203 else 12204 io->io_hdr.status = CTL_ERROR; 12205 ctl_done(io); 12206} 12207 12208/* 12209 * For HA operation. Handle commands that come in from the other 12210 * controller. 12211 */ 12212static void 12213ctl_handle_isc(union ctl_io *io) 12214{ 12215 int free_io; 12216 struct ctl_lun *lun; 12217 struct ctl_softc *ctl_softc; 12218 uint32_t targ_lun; 12219 12220 ctl_softc = control_softc; 12221 12222 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12223 lun = ctl_softc->ctl_luns[targ_lun]; 12224 12225 switch (io->io_hdr.msg_type) { 12226 case CTL_MSG_SERIALIZE: 12227 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12228 break; 12229 case CTL_MSG_R2R: { 12230 const struct ctl_cmd_entry *entry; 12231 12232 /* 12233 * This is only used in SER_ONLY mode. 12234 */ 12235 free_io = 0; 12236 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12237 mtx_lock(&lun->lun_lock); 12238 if (ctl_scsiio_lun_check(ctl_softc, lun, 12239 entry, (struct ctl_scsiio *)io) != 0) { 12240 mtx_unlock(&lun->lun_lock); 12241 ctl_done(io); 12242 break; 12243 } 12244 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12245 mtx_unlock(&lun->lun_lock); 12246 ctl_enqueue_rtr(io); 12247 break; 12248 } 12249 case CTL_MSG_FINISH_IO: 12250 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 12251 free_io = 0; 12252 ctl_done(io); 12253 } else { 12254 free_io = 1; 12255 mtx_lock(&lun->lun_lock); 12256 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12257 ooa_links); 12258 ctl_check_blocked(lun); 12259 mtx_unlock(&lun->lun_lock); 12260 } 12261 break; 12262 case CTL_MSG_PERS_ACTION: 12263 ctl_hndl_per_res_out_on_other_sc( 12264 (union ctl_ha_msg *)&io->presio.pr_msg); 12265 free_io = 1; 12266 break; 12267 case CTL_MSG_BAD_JUJU: 12268 free_io = 0; 12269 ctl_done(io); 12270 break; 12271 case CTL_MSG_DATAMOVE: 12272 /* Only used in XFER mode */ 12273 free_io = 0; 12274 ctl_datamove_remote(io); 12275 break; 12276 case CTL_MSG_DATAMOVE_DONE: 12277 /* Only used in XFER mode */ 12278 free_io = 0; 12279 io->scsiio.be_move_done(io); 12280 break; 12281 default: 12282 free_io = 1; 12283 printf("%s: Invalid message type %d\n", 12284 __func__, io->io_hdr.msg_type); 12285 break; 12286 } 12287 if (free_io) 12288 ctl_free_io(io); 12289 12290} 12291 12292 12293/* 12294 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12295 * there is no match. 12296 */ 12297static ctl_lun_error_pattern 12298ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12299{ 12300 const struct ctl_cmd_entry *entry; 12301 ctl_lun_error_pattern filtered_pattern, pattern; 12302 12303 pattern = desc->error_pattern; 12304 12305 /* 12306 * XXX KDM we need more data passed into this function to match a 12307 * custom pattern, and we actually need to implement custom pattern 12308 * matching. 12309 */ 12310 if (pattern & CTL_LUN_PAT_CMD) 12311 return (CTL_LUN_PAT_CMD); 12312 12313 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12314 return (CTL_LUN_PAT_ANY); 12315 12316 entry = ctl_get_cmd_entry(ctsio, NULL); 12317 12318 filtered_pattern = entry->pattern & pattern; 12319 12320 /* 12321 * If the user requested specific flags in the pattern (e.g. 12322 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12323 * flags. 12324 * 12325 * If the user did not specify any flags, it doesn't matter whether 12326 * or not the command supports the flags. 12327 */ 12328 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12329 (pattern & ~CTL_LUN_PAT_MASK)) 12330 return (CTL_LUN_PAT_NONE); 12331 12332 /* 12333 * If the user asked for a range check, see if the requested LBA 12334 * range overlaps with this command's LBA range. 12335 */ 12336 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12337 uint64_t lba1; 12338 uint64_t len1; 12339 ctl_action action; 12340 int retval; 12341 12342 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12343 if (retval != 0) 12344 return (CTL_LUN_PAT_NONE); 12345 12346 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12347 desc->lba_range.len); 12348 /* 12349 * A "pass" means that the LBA ranges don't overlap, so 12350 * this doesn't match the user's range criteria. 12351 */ 12352 if (action == CTL_ACTION_PASS) 12353 return (CTL_LUN_PAT_NONE); 12354 } 12355 12356 return (filtered_pattern); 12357} 12358 12359static void 12360ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12361{ 12362 struct ctl_error_desc *desc, *desc2; 12363 12364 mtx_assert(&lun->lun_lock, MA_OWNED); 12365 12366 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12367 ctl_lun_error_pattern pattern; 12368 /* 12369 * Check to see whether this particular command matches 12370 * the pattern in the descriptor. 12371 */ 12372 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12373 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12374 continue; 12375 12376 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12377 case CTL_LUN_INJ_ABORTED: 12378 ctl_set_aborted(&io->scsiio); 12379 break; 12380 case CTL_LUN_INJ_MEDIUM_ERR: 12381 ctl_set_medium_error(&io->scsiio); 12382 break; 12383 case CTL_LUN_INJ_UA: 12384 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12385 * OCCURRED */ 12386 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12387 break; 12388 case CTL_LUN_INJ_CUSTOM: 12389 /* 12390 * We're assuming the user knows what he is doing. 12391 * Just copy the sense information without doing 12392 * checks. 12393 */ 12394 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12395 ctl_min(sizeof(desc->custom_sense), 12396 sizeof(io->scsiio.sense_data))); 12397 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12398 io->scsiio.sense_len = SSD_FULL_SIZE; 12399 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12400 break; 12401 case CTL_LUN_INJ_NONE: 12402 default: 12403 /* 12404 * If this is an error injection type we don't know 12405 * about, clear the continuous flag (if it is set) 12406 * so it will get deleted below. 12407 */ 12408 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12409 break; 12410 } 12411 /* 12412 * By default, each error injection action is a one-shot 12413 */ 12414 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12415 continue; 12416 12417 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12418 12419 free(desc, M_CTL); 12420 } 12421} 12422 12423#ifdef CTL_IO_DELAY 12424static void 12425ctl_datamove_timer_wakeup(void *arg) 12426{ 12427 union ctl_io *io; 12428 12429 io = (union ctl_io *)arg; 12430 12431 ctl_datamove(io); 12432} 12433#endif /* CTL_IO_DELAY */ 12434 12435void 12436ctl_datamove(union ctl_io *io) 12437{ 12438 void (*fe_datamove)(union ctl_io *io); 12439 12440 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12441 12442 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12443 12444#ifdef CTL_TIME_IO 12445 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12446 char str[256]; 12447 char path_str[64]; 12448 struct sbuf sb; 12449 12450 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12451 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12452 12453 sbuf_cat(&sb, path_str); 12454 switch (io->io_hdr.io_type) { 12455 case CTL_IO_SCSI: 12456 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12457 sbuf_printf(&sb, "\n"); 12458 sbuf_cat(&sb, path_str); 12459 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12460 io->scsiio.tag_num, io->scsiio.tag_type); 12461 break; 12462 case CTL_IO_TASK: 12463 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12464 "Tag Type: %d\n", io->taskio.task_action, 12465 io->taskio.tag_num, io->taskio.tag_type); 12466 break; 12467 default: 12468 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12469 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12470 break; 12471 } 12472 sbuf_cat(&sb, path_str); 12473 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12474 (intmax_t)time_uptime - io->io_hdr.start_time); 12475 sbuf_finish(&sb); 12476 printf("%s", sbuf_data(&sb)); 12477 } 12478#endif /* CTL_TIME_IO */ 12479 12480#ifdef CTL_IO_DELAY 12481 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12482 struct ctl_lun *lun; 12483 12484 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12485 12486 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12487 } else { 12488 struct ctl_lun *lun; 12489 12490 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12491 if ((lun != NULL) 12492 && (lun->delay_info.datamove_delay > 0)) { 12493 struct callout *callout; 12494 12495 callout = (struct callout *)&io->io_hdr.timer_bytes; 12496 callout_init(callout, /*mpsafe*/ 1); 12497 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12498 callout_reset(callout, 12499 lun->delay_info.datamove_delay * hz, 12500 ctl_datamove_timer_wakeup, io); 12501 if (lun->delay_info.datamove_type == 12502 CTL_DELAY_TYPE_ONESHOT) 12503 lun->delay_info.datamove_delay = 0; 12504 return; 12505 } 12506 } 12507#endif 12508 12509 /* 12510 * This command has been aborted. Set the port status, so we fail 12511 * the data move. 12512 */ 12513 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12514 printf("ctl_datamove: tag 0x%04x on (%ju:%d:%ju:%d) aborted\n", 12515 io->scsiio.tag_num,(uintmax_t)io->io_hdr.nexus.initid.id, 12516 io->io_hdr.nexus.targ_port, 12517 (uintmax_t)io->io_hdr.nexus.targ_target.id, 12518 io->io_hdr.nexus.targ_lun); 12519 io->io_hdr.port_status = 31337; 12520 /* 12521 * Note that the backend, in this case, will get the 12522 * callback in its context. In other cases it may get 12523 * called in the frontend's interrupt thread context. 12524 */ 12525 io->scsiio.be_move_done(io); 12526 return; 12527 } 12528 12529 /* Don't confuse frontend with zero length data move. */ 12530 if (io->scsiio.kern_data_len == 0) { 12531 io->scsiio.be_move_done(io); 12532 return; 12533 } 12534 12535 /* 12536 * If we're in XFER mode and this I/O is from the other shelf 12537 * controller, we need to send the DMA to the other side to 12538 * actually transfer the data to/from the host. In serialize only 12539 * mode the transfer happens below CTL and ctl_datamove() is only 12540 * called on the machine that originally received the I/O. 12541 */ 12542 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12543 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12544 union ctl_ha_msg msg; 12545 uint32_t sg_entries_sent; 12546 int do_sg_copy; 12547 int i; 12548 12549 memset(&msg, 0, sizeof(msg)); 12550 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12551 msg.hdr.original_sc = io->io_hdr.original_sc; 12552 msg.hdr.serializing_sc = io; 12553 msg.hdr.nexus = io->io_hdr.nexus; 12554 msg.dt.flags = io->io_hdr.flags; 12555 /* 12556 * We convert everything into a S/G list here. We can't 12557 * pass by reference, only by value between controllers. 12558 * So we can't pass a pointer to the S/G list, only as many 12559 * S/G entries as we can fit in here. If it's possible for 12560 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12561 * then we need to break this up into multiple transfers. 12562 */ 12563 if (io->scsiio.kern_sg_entries == 0) { 12564 msg.dt.kern_sg_entries = 1; 12565 /* 12566 * If this is in cached memory, flush the cache 12567 * before we send the DMA request to the other 12568 * controller. We want to do this in either the 12569 * read or the write case. The read case is 12570 * straightforward. In the write case, we want to 12571 * make sure nothing is in the local cache that 12572 * could overwrite the DMAed data. 12573 */ 12574 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12575 /* 12576 * XXX KDM use bus_dmamap_sync() here. 12577 */ 12578 } 12579 12580 /* 12581 * Convert to a physical address if this is a 12582 * virtual address. 12583 */ 12584 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12585 msg.dt.sg_list[0].addr = 12586 io->scsiio.kern_data_ptr; 12587 } else { 12588 /* 12589 * XXX KDM use busdma here! 12590 */ 12591#if 0 12592 msg.dt.sg_list[0].addr = (void *) 12593 vtophys(io->scsiio.kern_data_ptr); 12594#endif 12595 } 12596 12597 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12598 do_sg_copy = 0; 12599 } else { 12600 struct ctl_sg_entry *sgl; 12601 12602 do_sg_copy = 1; 12603 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12604 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 12605 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12606 /* 12607 * XXX KDM use bus_dmamap_sync() here. 12608 */ 12609 } 12610 } 12611 12612 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12613 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12614 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12615 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12616 msg.dt.sg_sequence = 0; 12617 12618 /* 12619 * Loop until we've sent all of the S/G entries. On the 12620 * other end, we'll recompose these S/G entries into one 12621 * contiguous list before passing it to the 12622 */ 12623 for (sg_entries_sent = 0; sg_entries_sent < 12624 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12625 msg.dt.cur_sg_entries = ctl_min((sizeof(msg.dt.sg_list)/ 12626 sizeof(msg.dt.sg_list[0])), 12627 msg.dt.kern_sg_entries - sg_entries_sent); 12628 12629 if (do_sg_copy != 0) { 12630 struct ctl_sg_entry *sgl; 12631 int j; 12632 12633 sgl = (struct ctl_sg_entry *) 12634 io->scsiio.kern_data_ptr; 12635 /* 12636 * If this is in cached memory, flush the cache 12637 * before we send the DMA request to the other 12638 * controller. We want to do this in either 12639 * the * read or the write case. The read 12640 * case is straightforward. In the write 12641 * case, we want to make sure nothing is 12642 * in the local cache that could overwrite 12643 * the DMAed data. 12644 */ 12645 12646 for (i = sg_entries_sent, j = 0; 12647 i < msg.dt.cur_sg_entries; i++, j++) { 12648 if ((io->io_hdr.flags & 12649 CTL_FLAG_NO_DATASYNC) == 0) { 12650 /* 12651 * XXX KDM use bus_dmamap_sync() 12652 */ 12653 } 12654 if ((io->io_hdr.flags & 12655 CTL_FLAG_BUS_ADDR) == 0) { 12656 /* 12657 * XXX KDM use busdma. 12658 */ 12659#if 0 12660 msg.dt.sg_list[j].addr =(void *) 12661 vtophys(sgl[i].addr); 12662#endif 12663 } else { 12664 msg.dt.sg_list[j].addr = 12665 sgl[i].addr; 12666 } 12667 msg.dt.sg_list[j].len = sgl[i].len; 12668 } 12669 } 12670 12671 sg_entries_sent += msg.dt.cur_sg_entries; 12672 if (sg_entries_sent >= msg.dt.kern_sg_entries) 12673 msg.dt.sg_last = 1; 12674 else 12675 msg.dt.sg_last = 0; 12676 12677 /* 12678 * XXX KDM drop and reacquire the lock here? 12679 */ 12680 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12681 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 12682 /* 12683 * XXX do something here. 12684 */ 12685 } 12686 12687 msg.dt.sent_sg_entries = sg_entries_sent; 12688 } 12689 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12690 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) 12691 ctl_failover_io(io, /*have_lock*/ 0); 12692 12693 } else { 12694 12695 /* 12696 * Lookup the fe_datamove() function for this particular 12697 * front end. 12698 */ 12699 fe_datamove = 12700 control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12701 12702 fe_datamove(io); 12703 } 12704} 12705 12706static void 12707ctl_send_datamove_done(union ctl_io *io, int have_lock) 12708{ 12709 union ctl_ha_msg msg; 12710 int isc_status; 12711 12712 memset(&msg, 0, sizeof(msg)); 12713 12714 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12715 msg.hdr.original_sc = io; 12716 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12717 msg.hdr.nexus = io->io_hdr.nexus; 12718 msg.hdr.status = io->io_hdr.status; 12719 msg.scsi.tag_num = io->scsiio.tag_num; 12720 msg.scsi.tag_type = io->scsiio.tag_type; 12721 msg.scsi.scsi_status = io->scsiio.scsi_status; 12722 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12723 sizeof(io->scsiio.sense_data)); 12724 msg.scsi.sense_len = io->scsiio.sense_len; 12725 msg.scsi.sense_residual = io->scsiio.sense_residual; 12726 msg.scsi.fetd_status = io->io_hdr.port_status; 12727 msg.scsi.residual = io->scsiio.residual; 12728 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12729 12730 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12731 ctl_failover_io(io, /*have_lock*/ have_lock); 12732 return; 12733 } 12734 12735 isc_status = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0); 12736 if (isc_status > CTL_HA_STATUS_SUCCESS) { 12737 /* XXX do something if this fails */ 12738 } 12739 12740} 12741 12742/* 12743 * The DMA to the remote side is done, now we need to tell the other side 12744 * we're done so it can continue with its data movement. 12745 */ 12746static void 12747ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12748{ 12749 union ctl_io *io; 12750 12751 io = rq->context; 12752 12753 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12754 printf("%s: ISC DMA write failed with error %d", __func__, 12755 rq->ret); 12756 ctl_set_internal_failure(&io->scsiio, 12757 /*sks_valid*/ 1, 12758 /*retry_count*/ rq->ret); 12759 } 12760 12761 ctl_dt_req_free(rq); 12762 12763 /* 12764 * In this case, we had to malloc the memory locally. Free it. 12765 */ 12766 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12767 int i; 12768 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12769 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12770 } 12771 /* 12772 * The data is in local and remote memory, so now we need to send 12773 * status (good or back) back to the other side. 12774 */ 12775 ctl_send_datamove_done(io, /*have_lock*/ 0); 12776} 12777 12778/* 12779 * We've moved the data from the host/controller into local memory. Now we 12780 * need to push it over to the remote controller's memory. 12781 */ 12782static int 12783ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12784{ 12785 int retval; 12786 12787 retval = 0; 12788 12789 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12790 ctl_datamove_remote_write_cb); 12791 12792 return (retval); 12793} 12794 12795static void 12796ctl_datamove_remote_write(union ctl_io *io) 12797{ 12798 int retval; 12799 void (*fe_datamove)(union ctl_io *io); 12800 12801 /* 12802 * - Get the data from the host/HBA into local memory. 12803 * - DMA memory from the local controller to the remote controller. 12804 * - Send status back to the remote controller. 12805 */ 12806 12807 retval = ctl_datamove_remote_sgl_setup(io); 12808 if (retval != 0) 12809 return; 12810 12811 /* Switch the pointer over so the FETD knows what to do */ 12812 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12813 12814 /* 12815 * Use a custom move done callback, since we need to send completion 12816 * back to the other controller, not to the backend on this side. 12817 */ 12818 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12819 12820 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12821 12822 fe_datamove(io); 12823 12824 return; 12825 12826} 12827 12828static int 12829ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12830{ 12831#if 0 12832 char str[256]; 12833 char path_str[64]; 12834 struct sbuf sb; 12835#endif 12836 12837 /* 12838 * In this case, we had to malloc the memory locally. Free it. 12839 */ 12840 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12841 int i; 12842 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12843 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12844 } 12845 12846#if 0 12847 scsi_path_string(io, path_str, sizeof(path_str)); 12848 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12849 sbuf_cat(&sb, path_str); 12850 scsi_command_string(&io->scsiio, NULL, &sb); 12851 sbuf_printf(&sb, "\n"); 12852 sbuf_cat(&sb, path_str); 12853 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12854 io->scsiio.tag_num, io->scsiio.tag_type); 12855 sbuf_cat(&sb, path_str); 12856 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12857 io->io_hdr.flags, io->io_hdr.status); 12858 sbuf_finish(&sb); 12859 printk("%s", sbuf_data(&sb)); 12860#endif 12861 12862 12863 /* 12864 * The read is done, now we need to send status (good or bad) back 12865 * to the other side. 12866 */ 12867 ctl_send_datamove_done(io, /*have_lock*/ 0); 12868 12869 return (0); 12870} 12871 12872static void 12873ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12874{ 12875 union ctl_io *io; 12876 void (*fe_datamove)(union ctl_io *io); 12877 12878 io = rq->context; 12879 12880 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12881 printf("%s: ISC DMA read failed with error %d", __func__, 12882 rq->ret); 12883 ctl_set_internal_failure(&io->scsiio, 12884 /*sks_valid*/ 1, 12885 /*retry_count*/ rq->ret); 12886 } 12887 12888 ctl_dt_req_free(rq); 12889 12890 /* Switch the pointer over so the FETD knows what to do */ 12891 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12892 12893 /* 12894 * Use a custom move done callback, since we need to send completion 12895 * back to the other controller, not to the backend on this side. 12896 */ 12897 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12898 12899 /* XXX KDM add checks like the ones in ctl_datamove? */ 12900 12901 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12902 12903 fe_datamove(io); 12904} 12905 12906static int 12907ctl_datamove_remote_sgl_setup(union ctl_io *io) 12908{ 12909 struct ctl_sg_entry *local_sglist, *remote_sglist; 12910 struct ctl_sg_entry *local_dma_sglist, *remote_dma_sglist; 12911 struct ctl_softc *softc; 12912 int retval; 12913 int i; 12914 12915 retval = 0; 12916 softc = control_softc; 12917 12918 local_sglist = io->io_hdr.local_sglist; 12919 local_dma_sglist = io->io_hdr.local_dma_sglist; 12920 remote_sglist = io->io_hdr.remote_sglist; 12921 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 12922 12923 if (io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) { 12924 for (i = 0; i < io->scsiio.kern_sg_entries; i++) { 12925 local_sglist[i].len = remote_sglist[i].len; 12926 12927 /* 12928 * XXX Detect the situation where the RS-level I/O 12929 * redirector on the other side has already read the 12930 * data off of the AOR RS on this side, and 12931 * transferred it to remote (mirror) memory on the 12932 * other side. Since we already have the data in 12933 * memory here, we just need to use it. 12934 * 12935 * XXX KDM this can probably be removed once we 12936 * get the cache device code in and take the 12937 * current AOR implementation out. 12938 */ 12939#ifdef NEEDTOPORT 12940 if ((remote_sglist[i].addr >= 12941 (void *)vtophys(softc->mirr->addr)) 12942 && (remote_sglist[i].addr < 12943 ((void *)vtophys(softc->mirr->addr) + 12944 CacheMirrorOffset))) { 12945 local_sglist[i].addr = remote_sglist[i].addr - 12946 CacheMirrorOffset; 12947 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 12948 CTL_FLAG_DATA_IN) 12949 io->io_hdr.flags |= CTL_FLAG_REDIR_DONE; 12950 } else { 12951 local_sglist[i].addr = remote_sglist[i].addr + 12952 CacheMirrorOffset; 12953 } 12954#endif 12955#if 0 12956 printf("%s: local %p, remote %p, len %d\n", 12957 __func__, local_sglist[i].addr, 12958 remote_sglist[i].addr, local_sglist[i].len); 12959#endif 12960 } 12961 } else { 12962 uint32_t len_to_go; 12963 12964 /* 12965 * In this case, we don't have automatically allocated 12966 * memory for this I/O on this controller. This typically 12967 * happens with internal CTL I/O -- e.g. inquiry, mode 12968 * sense, etc. Anything coming from RAIDCore will have 12969 * a mirror area available. 12970 */ 12971 len_to_go = io->scsiio.kern_data_len; 12972 12973 /* 12974 * Clear the no datasync flag, we have to use malloced 12975 * buffers. 12976 */ 12977 io->io_hdr.flags &= ~CTL_FLAG_NO_DATASYNC; 12978 12979 /* 12980 * The difficult thing here is that the size of the various 12981 * S/G segments may be different than the size from the 12982 * remote controller. That'll make it harder when DMAing 12983 * the data back to the other side. 12984 */ 12985 for (i = 0; (i < sizeof(io->io_hdr.remote_sglist) / 12986 sizeof(io->io_hdr.remote_sglist[0])) && 12987 (len_to_go > 0); i++) { 12988 local_sglist[i].len = ctl_min(len_to_go, 131072); 12989 CTL_SIZE_8B(local_dma_sglist[i].len, 12990 local_sglist[i].len); 12991 local_sglist[i].addr = 12992 malloc(local_dma_sglist[i].len, M_CTL,M_WAITOK); 12993 12994 local_dma_sglist[i].addr = local_sglist[i].addr; 12995 12996 if (local_sglist[i].addr == NULL) { 12997 int j; 12998 12999 printf("malloc failed for %zd bytes!", 13000 local_dma_sglist[i].len); 13001 for (j = 0; j < i; j++) { 13002 free(local_sglist[j].addr, M_CTL); 13003 } 13004 ctl_set_internal_failure(&io->scsiio, 13005 /*sks_valid*/ 1, 13006 /*retry_count*/ 4857); 13007 retval = 1; 13008 goto bailout_error; 13009 13010 } 13011 /* XXX KDM do we need a sync here? */ 13012 13013 len_to_go -= local_sglist[i].len; 13014 } 13015 /* 13016 * Reset the number of S/G entries accordingly. The 13017 * original number of S/G entries is available in 13018 * rem_sg_entries. 13019 */ 13020 io->scsiio.kern_sg_entries = i; 13021 13022#if 0 13023 printf("%s: kern_sg_entries = %d\n", __func__, 13024 io->scsiio.kern_sg_entries); 13025 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13026 printf("%s: sg[%d] = %p, %d (DMA: %d)\n", __func__, i, 13027 local_sglist[i].addr, local_sglist[i].len, 13028 local_dma_sglist[i].len); 13029#endif 13030 } 13031 13032 13033 return (retval); 13034 13035bailout_error: 13036 13037 ctl_send_datamove_done(io, /*have_lock*/ 0); 13038 13039 return (retval); 13040} 13041 13042static int 13043ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 13044 ctl_ha_dt_cb callback) 13045{ 13046 struct ctl_ha_dt_req *rq; 13047 struct ctl_sg_entry *remote_sglist, *local_sglist; 13048 struct ctl_sg_entry *remote_dma_sglist, *local_dma_sglist; 13049 uint32_t local_used, remote_used, total_used; 13050 int retval; 13051 int i, j; 13052 13053 retval = 0; 13054 13055 rq = ctl_dt_req_alloc(); 13056 13057 /* 13058 * If we failed to allocate the request, and if the DMA didn't fail 13059 * anyway, set busy status. This is just a resource allocation 13060 * failure. 13061 */ 13062 if ((rq == NULL) 13063 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)) 13064 ctl_set_busy(&io->scsiio); 13065 13066 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 13067 13068 if (rq != NULL) 13069 ctl_dt_req_free(rq); 13070 13071 /* 13072 * The data move failed. We need to return status back 13073 * to the other controller. No point in trying to DMA 13074 * data to the remote controller. 13075 */ 13076 13077 ctl_send_datamove_done(io, /*have_lock*/ 0); 13078 13079 retval = 1; 13080 13081 goto bailout; 13082 } 13083 13084 local_sglist = io->io_hdr.local_sglist; 13085 local_dma_sglist = io->io_hdr.local_dma_sglist; 13086 remote_sglist = io->io_hdr.remote_sglist; 13087 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13088 local_used = 0; 13089 remote_used = 0; 13090 total_used = 0; 13091 13092 if (io->io_hdr.flags & CTL_FLAG_REDIR_DONE) { 13093 rq->ret = CTL_HA_STATUS_SUCCESS; 13094 rq->context = io; 13095 callback(rq); 13096 goto bailout; 13097 } 13098 13099 /* 13100 * Pull/push the data over the wire from/to the other controller. 13101 * This takes into account the possibility that the local and 13102 * remote sglists may not be identical in terms of the size of 13103 * the elements and the number of elements. 13104 * 13105 * One fundamental assumption here is that the length allocated for 13106 * both the local and remote sglists is identical. Otherwise, we've 13107 * essentially got a coding error of some sort. 13108 */ 13109 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 13110 int isc_ret; 13111 uint32_t cur_len, dma_length; 13112 uint8_t *tmp_ptr; 13113 13114 rq->id = CTL_HA_DATA_CTL; 13115 rq->command = command; 13116 rq->context = io; 13117 13118 /* 13119 * Both pointers should be aligned. But it is possible 13120 * that the allocation length is not. They should both 13121 * also have enough slack left over at the end, though, 13122 * to round up to the next 8 byte boundary. 13123 */ 13124 cur_len = ctl_min(local_sglist[i].len - local_used, 13125 remote_sglist[j].len - remote_used); 13126 13127 /* 13128 * In this case, we have a size issue and need to decrease 13129 * the size, except in the case where we actually have less 13130 * than 8 bytes left. In that case, we need to increase 13131 * the DMA length to get the last bit. 13132 */ 13133 if ((cur_len & 0x7) != 0) { 13134 if (cur_len > 0x7) { 13135 cur_len = cur_len - (cur_len & 0x7); 13136 dma_length = cur_len; 13137 } else { 13138 CTL_SIZE_8B(dma_length, cur_len); 13139 } 13140 13141 } else 13142 dma_length = cur_len; 13143 13144 /* 13145 * If we had to allocate memory for this I/O, instead of using 13146 * the non-cached mirror memory, we'll need to flush the cache 13147 * before trying to DMA to the other controller. 13148 * 13149 * We could end up doing this multiple times for the same 13150 * segment if we have a larger local segment than remote 13151 * segment. That shouldn't be an issue. 13152 */ 13153 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 13154 /* 13155 * XXX KDM use bus_dmamap_sync() here. 13156 */ 13157 } 13158 13159 rq->size = dma_length; 13160 13161 tmp_ptr = (uint8_t *)local_sglist[i].addr; 13162 tmp_ptr += local_used; 13163 13164 /* Use physical addresses when talking to ISC hardware */ 13165 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 13166 /* XXX KDM use busdma */ 13167#if 0 13168 rq->local = vtophys(tmp_ptr); 13169#endif 13170 } else 13171 rq->local = tmp_ptr; 13172 13173 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 13174 tmp_ptr += remote_used; 13175 rq->remote = tmp_ptr; 13176 13177 rq->callback = NULL; 13178 13179 local_used += cur_len; 13180 if (local_used >= local_sglist[i].len) { 13181 i++; 13182 local_used = 0; 13183 } 13184 13185 remote_used += cur_len; 13186 if (remote_used >= remote_sglist[j].len) { 13187 j++; 13188 remote_used = 0; 13189 } 13190 total_used += cur_len; 13191 13192 if (total_used >= io->scsiio.kern_data_len) 13193 rq->callback = callback; 13194 13195 if ((rq->size & 0x7) != 0) { 13196 printf("%s: warning: size %d is not on 8b boundary\n", 13197 __func__, rq->size); 13198 } 13199 if (((uintptr_t)rq->local & 0x7) != 0) { 13200 printf("%s: warning: local %p not on 8b boundary\n", 13201 __func__, rq->local); 13202 } 13203 if (((uintptr_t)rq->remote & 0x7) != 0) { 13204 printf("%s: warning: remote %p not on 8b boundary\n", 13205 __func__, rq->local); 13206 } 13207#if 0 13208 printf("%s: %s: local %#x remote %#x size %d\n", __func__, 13209 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13210 rq->local, rq->remote, rq->size); 13211#endif 13212 13213 isc_ret = ctl_dt_single(rq); 13214 if (isc_ret == CTL_HA_STATUS_WAIT) 13215 continue; 13216 13217 if (isc_ret == CTL_HA_STATUS_DISCONNECT) { 13218 rq->ret = CTL_HA_STATUS_SUCCESS; 13219 } else { 13220 rq->ret = isc_ret; 13221 } 13222 callback(rq); 13223 goto bailout; 13224 } 13225 13226bailout: 13227 return (retval); 13228 13229} 13230 13231static void 13232ctl_datamove_remote_read(union ctl_io *io) 13233{ 13234 int retval; 13235 int i; 13236 13237 /* 13238 * This will send an error to the other controller in the case of a 13239 * failure. 13240 */ 13241 retval = ctl_datamove_remote_sgl_setup(io); 13242 if (retval != 0) 13243 return; 13244 13245 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13246 ctl_datamove_remote_read_cb); 13247 if ((retval != 0) 13248 && ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0)) { 13249 /* 13250 * Make sure we free memory if there was an error.. The 13251 * ctl_datamove_remote_xfer() function will send the 13252 * datamove done message, or call the callback with an 13253 * error if there is a problem. 13254 */ 13255 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13256 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13257 } 13258 13259 return; 13260} 13261 13262/* 13263 * Process a datamove request from the other controller. This is used for 13264 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13265 * first. Once that is complete, the data gets DMAed into the remote 13266 * controller's memory. For reads, we DMA from the remote controller's 13267 * memory into our memory first, and then move it out to the FETD. 13268 */ 13269static void 13270ctl_datamove_remote(union ctl_io *io) 13271{ 13272 struct ctl_softc *softc; 13273 13274 softc = control_softc; 13275 13276 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 13277 13278 /* 13279 * Note that we look for an aborted I/O here, but don't do some of 13280 * the other checks that ctl_datamove() normally does. 13281 * We don't need to run the datamove delay code, since that should 13282 * have been done if need be on the other controller. 13283 */ 13284 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13285 printf("%s: tag 0x%04x on (%d:%d:%d:%d) aborted\n", __func__, 13286 io->scsiio.tag_num, io->io_hdr.nexus.initid.id, 13287 io->io_hdr.nexus.targ_port, 13288 io->io_hdr.nexus.targ_target.id, 13289 io->io_hdr.nexus.targ_lun); 13290 io->io_hdr.port_status = 31338; 13291 ctl_send_datamove_done(io, /*have_lock*/ 0); 13292 return; 13293 } 13294 13295 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) { 13296 ctl_datamove_remote_write(io); 13297 } else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN){ 13298 ctl_datamove_remote_read(io); 13299 } else { 13300 union ctl_ha_msg msg; 13301 struct scsi_sense_data *sense; 13302 uint8_t sks[3]; 13303 int retry_count; 13304 13305 memset(&msg, 0, sizeof(msg)); 13306 13307 msg.hdr.msg_type = CTL_MSG_BAD_JUJU; 13308 msg.hdr.status = CTL_SCSI_ERROR; 13309 msg.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 13310 13311 retry_count = 4243; 13312 13313 sense = &msg.scsi.sense_data; 13314 sks[0] = SSD_SCS_VALID; 13315 sks[1] = (retry_count >> 8) & 0xff; 13316 sks[2] = retry_count & 0xff; 13317 13318 /* "Internal target failure" */ 13319 scsi_set_sense_data(sense, 13320 /*sense_format*/ SSD_TYPE_NONE, 13321 /*current_error*/ 1, 13322 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 13323 /*asc*/ 0x44, 13324 /*ascq*/ 0x00, 13325 /*type*/ SSD_ELEM_SKS, 13326 /*size*/ sizeof(sks), 13327 /*data*/ sks, 13328 SSD_ELEM_NONE); 13329 13330 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13331 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13332 ctl_failover_io(io, /*have_lock*/ 1); 13333 return; 13334 } 13335 13336 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0) > 13337 CTL_HA_STATUS_SUCCESS) { 13338 /* XXX KDM what to do if this fails? */ 13339 } 13340 return; 13341 } 13342 13343} 13344 13345static int 13346ctl_process_done(union ctl_io *io) 13347{ 13348 struct ctl_lun *lun; 13349 struct ctl_softc *ctl_softc = control_softc; 13350 void (*fe_done)(union ctl_io *io); 13351 uint32_t targ_port = ctl_port_idx(io->io_hdr.nexus.targ_port); 13352 13353 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13354 13355 fe_done = 13356 control_softc->ctl_ports[targ_port]->fe_done; 13357 13358#ifdef CTL_TIME_IO 13359 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13360 char str[256]; 13361 char path_str[64]; 13362 struct sbuf sb; 13363 13364 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13365 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13366 13367 sbuf_cat(&sb, path_str); 13368 switch (io->io_hdr.io_type) { 13369 case CTL_IO_SCSI: 13370 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13371 sbuf_printf(&sb, "\n"); 13372 sbuf_cat(&sb, path_str); 13373 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13374 io->scsiio.tag_num, io->scsiio.tag_type); 13375 break; 13376 case CTL_IO_TASK: 13377 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13378 "Tag Type: %d\n", io->taskio.task_action, 13379 io->taskio.tag_num, io->taskio.tag_type); 13380 break; 13381 default: 13382 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13383 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13384 break; 13385 } 13386 sbuf_cat(&sb, path_str); 13387 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13388 (intmax_t)time_uptime - io->io_hdr.start_time); 13389 sbuf_finish(&sb); 13390 printf("%s", sbuf_data(&sb)); 13391 } 13392#endif /* CTL_TIME_IO */ 13393 13394 switch (io->io_hdr.io_type) { 13395 case CTL_IO_SCSI: 13396 break; 13397 case CTL_IO_TASK: 13398 if (bootverbose || (ctl_debug & CTL_DEBUG_INFO)) 13399 ctl_io_error_print(io, NULL); 13400 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 13401 ctl_free_io(io); 13402 else 13403 fe_done(io); 13404 return (CTL_RETVAL_COMPLETE); 13405 default: 13406 panic("ctl_process_done: invalid io type %d\n", 13407 io->io_hdr.io_type); 13408 break; /* NOTREACHED */ 13409 } 13410 13411 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13412 if (lun == NULL) { 13413 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13414 io->io_hdr.nexus.targ_mapped_lun)); 13415 goto bailout; 13416 } 13417 13418 mtx_lock(&lun->lun_lock); 13419 13420 /* 13421 * Check to see if we have any errors to inject here. We only 13422 * inject errors for commands that don't already have errors set. 13423 */ 13424 if ((STAILQ_FIRST(&lun->error_list) != NULL) && 13425 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) && 13426 ((io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0)) 13427 ctl_inject_error(lun, io); 13428 13429 /* 13430 * XXX KDM how do we treat commands that aren't completed 13431 * successfully? 13432 * 13433 * XXX KDM should we also track I/O latency? 13434 */ 13435 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13436 io->io_hdr.io_type == CTL_IO_SCSI) { 13437#ifdef CTL_TIME_IO 13438 struct bintime cur_bt; 13439#endif 13440 int type; 13441 13442 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13443 CTL_FLAG_DATA_IN) 13444 type = CTL_STATS_READ; 13445 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13446 CTL_FLAG_DATA_OUT) 13447 type = CTL_STATS_WRITE; 13448 else 13449 type = CTL_STATS_NO_IO; 13450 13451 lun->stats.ports[targ_port].bytes[type] += 13452 io->scsiio.kern_total_len; 13453 lun->stats.ports[targ_port].operations[type]++; 13454#ifdef CTL_TIME_IO 13455 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13456 &io->io_hdr.dma_bt); 13457 lun->stats.ports[targ_port].num_dmas[type] += 13458 io->io_hdr.num_dmas; 13459 getbintime(&cur_bt); 13460 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13461 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13462#endif 13463 } 13464 13465 /* 13466 * Remove this from the OOA queue. 13467 */ 13468 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13469 13470 /* 13471 * Run through the blocked queue on this LUN and see if anything 13472 * has become unblocked, now that this transaction is done. 13473 */ 13474 ctl_check_blocked(lun); 13475 13476 /* 13477 * If the LUN has been invalidated, free it if there is nothing 13478 * left on its OOA queue. 13479 */ 13480 if ((lun->flags & CTL_LUN_INVALID) 13481 && TAILQ_EMPTY(&lun->ooa_queue)) { 13482 mtx_unlock(&lun->lun_lock); 13483 mtx_lock(&ctl_softc->ctl_lock); 13484 ctl_free_lun(lun); 13485 mtx_unlock(&ctl_softc->ctl_lock); 13486 } else 13487 mtx_unlock(&lun->lun_lock); 13488 13489bailout: 13490 13491 /* 13492 * If this command has been aborted, make sure we set the status 13493 * properly. The FETD is responsible for freeing the I/O and doing 13494 * whatever it needs to do to clean up its state. 13495 */ 13496 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13497 ctl_set_task_aborted(&io->scsiio); 13498 13499 /* 13500 * If enabled, print command error status. 13501 * We don't print UAs unless debugging was enabled explicitly. 13502 */ 13503 do { 13504 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) 13505 break; 13506 if (!bootverbose && (ctl_debug & CTL_DEBUG_INFO) == 0) 13507 break; 13508 if ((ctl_debug & CTL_DEBUG_INFO) == 0 && 13509 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SCSI_ERROR) && 13510 (io->scsiio.scsi_status == SCSI_STATUS_CHECK_COND)) { 13511 int error_code, sense_key, asc, ascq; 13512 13513 scsi_extract_sense_len(&io->scsiio.sense_data, 13514 io->scsiio.sense_len, &error_code, &sense_key, 13515 &asc, &ascq, /*show_errors*/ 0); 13516 if (sense_key == SSD_KEY_UNIT_ATTENTION) 13517 break; 13518 } 13519 13520 ctl_io_error_print(io, NULL); 13521 } while (0); 13522 13523 /* 13524 * Tell the FETD or the other shelf controller we're done with this 13525 * command. Note that only SCSI commands get to this point. Task 13526 * management commands are completed above. 13527 * 13528 * We only send status to the other controller if we're in XFER 13529 * mode. In SER_ONLY mode, the I/O is done on the controller that 13530 * received the I/O (from CTL's perspective), and so the status is 13531 * generated there. 13532 * 13533 * XXX KDM if we hold the lock here, we could cause a deadlock 13534 * if the frontend comes back in in this context to queue 13535 * something. 13536 */ 13537 if ((ctl_softc->ha_mode == CTL_HA_MODE_XFER) 13538 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 13539 union ctl_ha_msg msg; 13540 13541 memset(&msg, 0, sizeof(msg)); 13542 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13543 msg.hdr.original_sc = io->io_hdr.original_sc; 13544 msg.hdr.nexus = io->io_hdr.nexus; 13545 msg.hdr.status = io->io_hdr.status; 13546 msg.scsi.scsi_status = io->scsiio.scsi_status; 13547 msg.scsi.tag_num = io->scsiio.tag_num; 13548 msg.scsi.tag_type = io->scsiio.tag_type; 13549 msg.scsi.sense_len = io->scsiio.sense_len; 13550 msg.scsi.sense_residual = io->scsiio.sense_residual; 13551 msg.scsi.residual = io->scsiio.residual; 13552 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13553 sizeof(io->scsiio.sense_data)); 13554 /* 13555 * We copy this whether or not this is an I/O-related 13556 * command. Otherwise, we'd have to go and check to see 13557 * whether it's a read/write command, and it really isn't 13558 * worth it. 13559 */ 13560 memcpy(&msg.scsi.lbalen, 13561 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 13562 sizeof(msg.scsi.lbalen)); 13563 13564 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13565 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13566 /* XXX do something here */ 13567 } 13568 13569 ctl_free_io(io); 13570 } else 13571 fe_done(io); 13572 13573 return (CTL_RETVAL_COMPLETE); 13574} 13575 13576#ifdef CTL_WITH_CA 13577/* 13578 * Front end should call this if it doesn't do autosense. When the request 13579 * sense comes back in from the initiator, we'll dequeue this and send it. 13580 */ 13581int 13582ctl_queue_sense(union ctl_io *io) 13583{ 13584 struct ctl_lun *lun; 13585 struct ctl_softc *ctl_softc; 13586 uint32_t initidx, targ_lun; 13587 13588 ctl_softc = control_softc; 13589 13590 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13591 13592 /* 13593 * LUN lookup will likely move to the ctl_work_thread() once we 13594 * have our new queueing infrastructure (that doesn't put things on 13595 * a per-LUN queue initially). That is so that we can handle 13596 * things like an INQUIRY to a LUN that we don't have enabled. We 13597 * can't deal with that right now. 13598 */ 13599 mtx_lock(&ctl_softc->ctl_lock); 13600 13601 /* 13602 * If we don't have a LUN for this, just toss the sense 13603 * information. 13604 */ 13605 targ_lun = io->io_hdr.nexus.targ_lun; 13606 targ_lun = ctl_map_lun(io->io_hdr.nexus.targ_port, targ_lun); 13607 if ((targ_lun < CTL_MAX_LUNS) 13608 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 13609 lun = ctl_softc->ctl_luns[targ_lun]; 13610 else 13611 goto bailout; 13612 13613 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13614 13615 mtx_lock(&lun->lun_lock); 13616 /* 13617 * Already have CA set for this LUN...toss the sense information. 13618 */ 13619 if (ctl_is_set(lun->have_ca, initidx)) { 13620 mtx_unlock(&lun->lun_lock); 13621 goto bailout; 13622 } 13623 13624 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13625 ctl_min(sizeof(lun->pending_sense[initidx]), 13626 sizeof(io->scsiio.sense_data))); 13627 ctl_set_mask(lun->have_ca, initidx); 13628 mtx_unlock(&lun->lun_lock); 13629 13630bailout: 13631 mtx_unlock(&ctl_softc->ctl_lock); 13632 13633 ctl_free_io(io); 13634 13635 return (CTL_RETVAL_COMPLETE); 13636} 13637#endif 13638 13639/* 13640 * Primary command inlet from frontend ports. All SCSI and task I/O 13641 * requests must go through this function. 13642 */ 13643int 13644ctl_queue(union ctl_io *io) 13645{ 13646 struct ctl_softc *ctl_softc; 13647 13648 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13649 13650 ctl_softc = control_softc; 13651 13652#ifdef CTL_TIME_IO 13653 io->io_hdr.start_time = time_uptime; 13654 getbintime(&io->io_hdr.start_bt); 13655#endif /* CTL_TIME_IO */ 13656 13657 /* Map FE-specific LUN ID into global one. */ 13658 io->io_hdr.nexus.targ_mapped_lun = 13659 ctl_map_lun(io->io_hdr.nexus.targ_port, io->io_hdr.nexus.targ_lun); 13660 13661 switch (io->io_hdr.io_type) { 13662 case CTL_IO_SCSI: 13663 case CTL_IO_TASK: 13664 if (ctl_debug & CTL_DEBUG_CDB) 13665 ctl_io_print(io); 13666 ctl_enqueue_incoming(io); 13667 break; 13668 default: 13669 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13670 return (EINVAL); 13671 } 13672 13673 return (CTL_RETVAL_COMPLETE); 13674} 13675 13676#ifdef CTL_IO_DELAY 13677static void 13678ctl_done_timer_wakeup(void *arg) 13679{ 13680 union ctl_io *io; 13681 13682 io = (union ctl_io *)arg; 13683 ctl_done(io); 13684} 13685#endif /* CTL_IO_DELAY */ 13686 13687void 13688ctl_done(union ctl_io *io) 13689{ 13690 struct ctl_softc *ctl_softc; 13691 13692 ctl_softc = control_softc; 13693 13694 /* 13695 * Enable this to catch duplicate completion issues. 13696 */ 13697#if 0 13698 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13699 printf("%s: type %d msg %d cdb %x iptl: " 13700 "%d:%d:%d:%d tag 0x%04x " 13701 "flag %#x status %x\n", 13702 __func__, 13703 io->io_hdr.io_type, 13704 io->io_hdr.msg_type, 13705 io->scsiio.cdb[0], 13706 io->io_hdr.nexus.initid.id, 13707 io->io_hdr.nexus.targ_port, 13708 io->io_hdr.nexus.targ_target.id, 13709 io->io_hdr.nexus.targ_lun, 13710 (io->io_hdr.io_type == 13711 CTL_IO_TASK) ? 13712 io->taskio.tag_num : 13713 io->scsiio.tag_num, 13714 io->io_hdr.flags, 13715 io->io_hdr.status); 13716 } else 13717 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13718#endif 13719 13720 /* 13721 * This is an internal copy of an I/O, and should not go through 13722 * the normal done processing logic. 13723 */ 13724 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13725 return; 13726 13727 /* 13728 * We need to send a msg to the serializing shelf to finish the IO 13729 * as well. We don't send a finish message to the other shelf if 13730 * this is a task management command. Task management commands 13731 * aren't serialized in the OOA queue, but rather just executed on 13732 * both shelf controllers for commands that originated on that 13733 * controller. 13734 */ 13735 if ((io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC) 13736 && (io->io_hdr.io_type != CTL_IO_TASK)) { 13737 union ctl_ha_msg msg_io; 13738 13739 msg_io.hdr.msg_type = CTL_MSG_FINISH_IO; 13740 msg_io.hdr.serializing_sc = io->io_hdr.serializing_sc; 13741 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_io, 13742 sizeof(msg_io), 0 ) != CTL_HA_STATUS_SUCCESS) { 13743 } 13744 /* continue on to finish IO */ 13745 } 13746#ifdef CTL_IO_DELAY 13747 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13748 struct ctl_lun *lun; 13749 13750 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13751 13752 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13753 } else { 13754 struct ctl_lun *lun; 13755 13756 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13757 13758 if ((lun != NULL) 13759 && (lun->delay_info.done_delay > 0)) { 13760 struct callout *callout; 13761 13762 callout = (struct callout *)&io->io_hdr.timer_bytes; 13763 callout_init(callout, /*mpsafe*/ 1); 13764 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13765 callout_reset(callout, 13766 lun->delay_info.done_delay * hz, 13767 ctl_done_timer_wakeup, io); 13768 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13769 lun->delay_info.done_delay = 0; 13770 return; 13771 } 13772 } 13773#endif /* CTL_IO_DELAY */ 13774 13775 ctl_enqueue_done(io); 13776} 13777 13778int 13779ctl_isc(struct ctl_scsiio *ctsio) 13780{ 13781 struct ctl_lun *lun; 13782 int retval; 13783 13784 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13785 13786 CTL_DEBUG_PRINT(("ctl_isc: command: %02x\n", ctsio->cdb[0])); 13787 13788 CTL_DEBUG_PRINT(("ctl_isc: calling data_submit()\n")); 13789 13790 retval = lun->backend->data_submit((union ctl_io *)ctsio); 13791 13792 return (retval); 13793} 13794 13795 13796static void 13797ctl_work_thread(void *arg) 13798{ 13799 struct ctl_thread *thr = (struct ctl_thread *)arg; 13800 struct ctl_softc *softc = thr->ctl_softc; 13801 union ctl_io *io; 13802 int retval; 13803 13804 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13805 13806 for (;;) { 13807 retval = 0; 13808 13809 /* 13810 * We handle the queues in this order: 13811 * - ISC 13812 * - done queue (to free up resources, unblock other commands) 13813 * - RtR queue 13814 * - incoming queue 13815 * 13816 * If those queues are empty, we break out of the loop and 13817 * go to sleep. 13818 */ 13819 mtx_lock(&thr->queue_lock); 13820 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13821 if (io != NULL) { 13822 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13823 mtx_unlock(&thr->queue_lock); 13824 ctl_handle_isc(io); 13825 continue; 13826 } 13827 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13828 if (io != NULL) { 13829 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13830 /* clear any blocked commands, call fe_done */ 13831 mtx_unlock(&thr->queue_lock); 13832 retval = ctl_process_done(io); 13833 continue; 13834 } 13835 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13836 if (io != NULL) { 13837 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13838 mtx_unlock(&thr->queue_lock); 13839 if (io->io_hdr.io_type == CTL_IO_TASK) 13840 ctl_run_task(io); 13841 else 13842 ctl_scsiio_precheck(softc, &io->scsiio); 13843 continue; 13844 } 13845 if (!ctl_pause_rtr) { 13846 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13847 if (io != NULL) { 13848 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13849 mtx_unlock(&thr->queue_lock); 13850 retval = ctl_scsiio(&io->scsiio); 13851 if (retval != CTL_RETVAL_COMPLETE) 13852 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13853 continue; 13854 } 13855 } 13856 13857 /* Sleep until we have something to do. */ 13858 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13859 } 13860} 13861 13862static void 13863ctl_lun_thread(void *arg) 13864{ 13865 struct ctl_softc *softc = (struct ctl_softc *)arg; 13866 struct ctl_be_lun *be_lun; 13867 int retval; 13868 13869 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 13870 13871 for (;;) { 13872 retval = 0; 13873 mtx_lock(&softc->ctl_lock); 13874 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 13875 if (be_lun != NULL) { 13876 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 13877 mtx_unlock(&softc->ctl_lock); 13878 ctl_create_lun(be_lun); 13879 continue; 13880 } 13881 13882 /* Sleep until we have something to do. */ 13883 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 13884 PDROP | PRIBIO, "-", 0); 13885 } 13886} 13887 13888static void 13889ctl_thresh_thread(void *arg) 13890{ 13891 struct ctl_softc *softc = (struct ctl_softc *)arg; 13892 struct ctl_lun *lun; 13893 struct ctl_be_lun *be_lun; 13894 struct scsi_da_rw_recovery_page *rwpage; 13895 struct ctl_logical_block_provisioning_page *page; 13896 const char *attr; 13897 uint64_t thres, val; 13898 int i, e; 13899 13900 CTL_DEBUG_PRINT(("ctl_thresh_thread starting\n")); 13901 13902 for (;;) { 13903 mtx_lock(&softc->ctl_lock); 13904 STAILQ_FOREACH(lun, &softc->lun_list, links) { 13905 be_lun = lun->be_lun; 13906 if ((lun->flags & CTL_LUN_DISABLED) || 13907 (lun->flags & CTL_LUN_OFFLINE) || 13908 (be_lun->flags & CTL_LUN_FLAG_UNMAP) == 0 || 13909 lun->backend->lun_attr == NULL) 13910 continue; 13911 rwpage = &lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT]; 13912 if ((rwpage->byte8 & SMS_RWER_LBPERE) == 0) 13913 continue; 13914 e = 0; 13915 page = &lun->mode_pages.lbp_page[CTL_PAGE_CURRENT]; 13916 for (i = 0; i < CTL_NUM_LBP_THRESH; i++) { 13917 if ((page->descr[i].flags & SLBPPD_ENABLED) == 0) 13918 continue; 13919 thres = scsi_4btoul(page->descr[i].count); 13920 thres <<= CTL_LBP_EXPONENT; 13921 switch (page->descr[i].resource) { 13922 case 0x01: 13923 attr = "blocksavail"; 13924 break; 13925 case 0x02: 13926 attr = "blocksused"; 13927 break; 13928 case 0xf1: 13929 attr = "poolblocksavail"; 13930 break; 13931 case 0xf2: 13932 attr = "poolblocksused"; 13933 break; 13934 default: 13935 continue; 13936 } 13937 mtx_unlock(&softc->ctl_lock); // XXX 13938 val = lun->backend->lun_attr( 13939 lun->be_lun->be_lun, attr); 13940 mtx_lock(&softc->ctl_lock); 13941 if (val == UINT64_MAX) 13942 continue; 13943 if ((page->descr[i].flags & SLBPPD_ARMING_MASK) 13944 == SLBPPD_ARMING_INC) 13945 e |= (val >= thres); 13946 else 13947 e |= (val <= thres); 13948 } 13949 mtx_lock(&lun->lun_lock); 13950 if (e) { 13951 if (lun->lasttpt == 0 || 13952 time_uptime - lun->lasttpt >= CTL_LBP_UA_PERIOD) { 13953 lun->lasttpt = time_uptime; 13954 for (i = 0; i < CTL_MAX_INITIATORS; i++) 13955 lun->pending_ua[i] |= 13956 CTL_UA_THIN_PROV_THRES; 13957 } 13958 } else { 13959 lun->lasttpt = 0; 13960 for (i = 0; i < CTL_MAX_INITIATORS; i++) 13961 lun->pending_ua[i] &= ~CTL_UA_THIN_PROV_THRES; 13962 } 13963 mtx_unlock(&lun->lun_lock); 13964 } 13965 mtx_unlock(&softc->ctl_lock); 13966 pause("-", CTL_LBP_PERIOD * hz); 13967 } 13968} 13969 13970static void 13971ctl_enqueue_incoming(union ctl_io *io) 13972{ 13973 struct ctl_softc *softc = control_softc; 13974 struct ctl_thread *thr; 13975 u_int idx; 13976 13977 idx = (io->io_hdr.nexus.targ_port * 127 + 13978 io->io_hdr.nexus.initid.id) % worker_threads; 13979 thr = &softc->threads[idx]; 13980 mtx_lock(&thr->queue_lock); 13981 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 13982 mtx_unlock(&thr->queue_lock); 13983 wakeup(thr); 13984} 13985 13986static void 13987ctl_enqueue_rtr(union ctl_io *io) 13988{ 13989 struct ctl_softc *softc = control_softc; 13990 struct ctl_thread *thr; 13991 13992 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13993 mtx_lock(&thr->queue_lock); 13994 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 13995 mtx_unlock(&thr->queue_lock); 13996 wakeup(thr); 13997} 13998 13999static void 14000ctl_enqueue_done(union ctl_io *io) 14001{ 14002 struct ctl_softc *softc = control_softc; 14003 struct ctl_thread *thr; 14004 14005 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14006 mtx_lock(&thr->queue_lock); 14007 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 14008 mtx_unlock(&thr->queue_lock); 14009 wakeup(thr); 14010} 14011 14012static void 14013ctl_enqueue_isc(union ctl_io *io) 14014{ 14015 struct ctl_softc *softc = control_softc; 14016 struct ctl_thread *thr; 14017 14018 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14019 mtx_lock(&thr->queue_lock); 14020 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 14021 mtx_unlock(&thr->queue_lock); 14022 wakeup(thr); 14023} 14024 14025/* Initialization and failover */ 14026 14027void 14028ctl_init_isc_msg(void) 14029{ 14030 printf("CTL: Still calling this thing\n"); 14031} 14032 14033/* 14034 * Init component 14035 * Initializes component into configuration defined by bootMode 14036 * (see hasc-sv.c) 14037 * returns hasc_Status: 14038 * OK 14039 * ERROR - fatal error 14040 */ 14041static ctl_ha_comp_status 14042ctl_isc_init(struct ctl_ha_component *c) 14043{ 14044 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14045 14046 c->status = ret; 14047 return ret; 14048} 14049 14050/* Start component 14051 * Starts component in state requested. If component starts successfully, 14052 * it must set its own state to the requestrd state 14053 * When requested state is HASC_STATE_HA, the component may refine it 14054 * by adding _SLAVE or _MASTER flags. 14055 * Currently allowed state transitions are: 14056 * UNKNOWN->HA - initial startup 14057 * UNKNOWN->SINGLE - initial startup when no parter detected 14058 * HA->SINGLE - failover 14059 * returns ctl_ha_comp_status: 14060 * OK - component successfully started in requested state 14061 * FAILED - could not start the requested state, failover may 14062 * be possible 14063 * ERROR - fatal error detected, no future startup possible 14064 */ 14065static ctl_ha_comp_status 14066ctl_isc_start(struct ctl_ha_component *c, ctl_ha_state state) 14067{ 14068 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14069 14070 printf("%s: go\n", __func__); 14071 14072 // UNKNOWN->HA or UNKNOWN->SINGLE (bootstrap) 14073 if (c->state == CTL_HA_STATE_UNKNOWN ) { 14074 control_softc->is_single = 0; 14075 if (ctl_ha_msg_create(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 14076 != CTL_HA_STATUS_SUCCESS) { 14077 printf("ctl_isc_start: ctl_ha_msg_create failed.\n"); 14078 ret = CTL_HA_COMP_STATUS_ERROR; 14079 } 14080 } else if (CTL_HA_STATE_IS_HA(c->state) 14081 && CTL_HA_STATE_IS_SINGLE(state)){ 14082 // HA->SINGLE transition 14083 ctl_failover(); 14084 control_softc->is_single = 1; 14085 } else { 14086 printf("ctl_isc_start:Invalid state transition %X->%X\n", 14087 c->state, state); 14088 ret = CTL_HA_COMP_STATUS_ERROR; 14089 } 14090 if (CTL_HA_STATE_IS_SINGLE(state)) 14091 control_softc->is_single = 1; 14092 14093 c->state = state; 14094 c->status = ret; 14095 return ret; 14096} 14097 14098/* 14099 * Quiesce component 14100 * The component must clear any error conditions (set status to OK) and 14101 * prepare itself to another Start call 14102 * returns ctl_ha_comp_status: 14103 * OK 14104 * ERROR 14105 */ 14106static ctl_ha_comp_status 14107ctl_isc_quiesce(struct ctl_ha_component *c) 14108{ 14109 int ret = CTL_HA_COMP_STATUS_OK; 14110 14111 ctl_pause_rtr = 1; 14112 c->status = ret; 14113 return ret; 14114} 14115 14116struct ctl_ha_component ctl_ha_component_ctlisc = 14117{ 14118 .name = "CTL ISC", 14119 .state = CTL_HA_STATE_UNKNOWN, 14120 .init = ctl_isc_init, 14121 .start = ctl_isc_start, 14122 .quiesce = ctl_isc_quiesce 14123}; 14124 14125/* 14126 * vim: ts=8 14127 */ 14128