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("$FreeBSD$"); 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 85 struct 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 */ 114 static 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 }; 123 124 static 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 }; 132 133 static 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 }; 146 147 static 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 }; 160 161 static 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 }; 177 178 static 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 }; 193 194 static 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 }; 210 211 static 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 }; 226 227 static 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 }; 242 243 static 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 }; 258 259 static 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 }; 270 271 static 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 }; 282 283 static 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 }; 291 292 static 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) 302 303 static 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 }; 328 329 static 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 */ 358 static int rcv_sync_msg; 359 static uint8_t ctl_pause_rtr; 360 361 SYSCTL_NODE(_kern_cam, OID_AUTO, ctl, CTLFLAG_RD, 0, "CAM Target Layer"); 362 static int worker_threads = -1; 363 SYSCTL_INT(_kern_cam_ctl, OID_AUTO, worker_threads, CTLFLAG_RDTUN, 364 &worker_threads, 1, "Number of worker threads"); 365 static int ctl_debug = CTL_DEBUG_NONE; 366 SYSCTL_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 10 376 377 static void ctl_isc_event_handler(ctl_ha_channel chanel, ctl_ha_event event, 378 int param); 379 static void ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest); 380 static int ctl_init(void); 381 void ctl_shutdown(void); 382 static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td); 383 static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td); 384 static void ctl_ioctl_online(void *arg); 385 static void ctl_ioctl_offline(void *arg); 386 static int ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id); 387 static int ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id); 388 static int ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio); 389 static int ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio); 390 static int ctl_ioctl_submit_wait(union ctl_io *io); 391 static void ctl_ioctl_datamove(union ctl_io *io); 392 static void ctl_ioctl_done(union ctl_io *io); 393 static void ctl_ioctl_hard_startstop_callback(void *arg, 394 struct cfi_metatask *metatask); 395 static void ctl_ioctl_bbrread_callback(void *arg,struct cfi_metatask *metatask); 396 static 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); 399 static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 400 struct thread *td); 401 static uint32_t ctl_map_lun(int port_num, uint32_t lun); 402 static uint32_t ctl_map_lun_back(int port_num, uint32_t lun); 403 static 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); 405 static int ctl_free_lun(struct ctl_lun *lun); 406 static void ctl_create_lun(struct ctl_be_lun *be_lun); 407 /** 408 static void ctl_failover_change_pages(struct ctl_softc *softc, 409 struct ctl_scsiio *ctsio, int master); 410 **/ 411 412 static int ctl_do_mode_select(union ctl_io *io); 413 static 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); 419 static void ctl_pro_preempt_other(struct ctl_lun *lun, 420 union ctl_ha_msg *msg); 421 static void ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg); 422 static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 423 static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 424 static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 425 static int ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len); 426 static int ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len); 427 static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, 428 int alloc_len); 429 static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 430 int alloc_len); 431 static int ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len); 432 static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 433 static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 434 static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 435 static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len); 436 static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2, 437 bool seq); 438 static ctl_action ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2); 439 static ctl_action ctl_check_for_blockage(struct ctl_lun *lun, 440 union ctl_io *pending_io, union ctl_io *ooa_io); 441 static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 442 union ctl_io *starting_io); 443 static int ctl_check_blocked(struct ctl_lun *lun); 444 static int ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, 445 struct ctl_lun *lun, 446 const struct ctl_cmd_entry *entry, 447 struct ctl_scsiio *ctsio); 448 //static int ctl_check_rtr(union ctl_io *pending_io, struct ctl_softc *softc); 449 static void ctl_failover(void); 450 static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 451 struct ctl_scsiio *ctsio); 452 static int ctl_scsiio(struct ctl_scsiio *ctsio); 453 454 static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 455 static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 456 ctl_ua_type ua_type); 457 static int ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, 458 ctl_ua_type ua_type); 459 static int ctl_abort_task(union ctl_io *io); 460 static int ctl_abort_task_set(union ctl_io *io); 461 static int ctl_i_t_nexus_reset(union ctl_io *io); 462 static void ctl_run_task(union ctl_io *io); 463 #ifdef CTL_IO_DELAY 464 static void ctl_datamove_timer_wakeup(void *arg); 465 static void ctl_done_timer_wakeup(void *arg); 466 #endif /* CTL_IO_DELAY */ 467 468 static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 469 static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 470 static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 471 static void ctl_datamove_remote_write(union ctl_io *io); 472 static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 473 static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 474 static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 475 static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 476 ctl_ha_dt_cb callback); 477 static void ctl_datamove_remote_read(union ctl_io *io); 478 static void ctl_datamove_remote(union ctl_io *io); 479 static int ctl_process_done(union ctl_io *io); 480 static void ctl_lun_thread(void *arg); 481 static void ctl_thresh_thread(void *arg); 482 static void ctl_work_thread(void *arg); 483 static void ctl_enqueue_incoming(union ctl_io *io); 484 static void ctl_enqueue_rtr(union ctl_io *io); 485 static void ctl_enqueue_done(union ctl_io *io); 486 static void ctl_enqueue_isc(union ctl_io *io); 487 static const struct ctl_cmd_entry * 488 ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa); 489 static const struct ctl_cmd_entry * 490 ctl_validate_command(struct ctl_scsiio *ctsio); 491 static int ctl_cmd_applicable(uint8_t lun_type, 492 const struct ctl_cmd_entry *entry); 493 494 /* 495 * Load the serialization table. This isn't very pretty, but is probably 496 * the easiest way to do it. 497 */ 498 #include "ctl_ser_table.c" 499 500 /* 501 * We only need to define open, close and ioctl routines for this driver. 502 */ 503 static struct cdevsw ctl_cdevsw = { 504 .d_version = D_VERSION, 505 .d_flags = 0, 506 .d_open = ctl_open, 507 .d_close = ctl_close, 508 .d_ioctl = ctl_ioctl, 509 .d_name = "ctl", 510 }; 511 512 513 MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 514 MALLOC_DEFINE(M_CTLIO, "ctlio", "Memory used for CTL requests"); 515 516 static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 517 518 static moduledata_t ctl_moduledata = { 519 "ctl", 520 ctl_module_event_handler, 521 NULL 522 }; 523 524 DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 525 MODULE_VERSION(ctl, 1); 526 527 static struct ctl_frontend ioctl_frontend = 528 { 529 .name = "ioctl", 530 }; 531 532 static void 533 ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 534 union ctl_ha_msg *msg_info) 535 { 536 struct ctl_scsiio *ctsio; 537 538 if (msg_info->hdr.original_sc == NULL) { 539 printf("%s: original_sc == NULL!\n", __func__); 540 /* XXX KDM now what? */ 541 return; 542 } 543 544 ctsio = &msg_info->hdr.original_sc->scsiio; 545 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 546 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 547 ctsio->io_hdr.status = msg_info->hdr.status; 548 ctsio->scsi_status = msg_info->scsi.scsi_status; 549 ctsio->sense_len = msg_info->scsi.sense_len; 550 ctsio->sense_residual = msg_info->scsi.sense_residual; 551 ctsio->residual = msg_info->scsi.residual; 552 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 553 sizeof(ctsio->sense_data)); 554 memcpy(&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 555 &msg_info->scsi.lbalen, sizeof(msg_info->scsi.lbalen)); 556 ctl_enqueue_isc((union ctl_io *)ctsio); 557 } 558 559 static void 560 ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 561 union ctl_ha_msg *msg_info) 562 { 563 struct ctl_scsiio *ctsio; 564 565 if (msg_info->hdr.serializing_sc == NULL) { 566 printf("%s: serializing_sc == NULL!\n", __func__); 567 /* XXX KDM now what? */ 568 return; 569 } 570 571 ctsio = &msg_info->hdr.serializing_sc->scsiio; 572 #if 0 573 /* 574 * Attempt to catch the situation where an I/O has 575 * been freed, and we're using it again. 576 */ 577 if (ctsio->io_hdr.io_type == 0xff) { 578 union ctl_io *tmp_io; 579 tmp_io = (union ctl_io *)ctsio; 580 printf("%s: %p use after free!\n", __func__, 581 ctsio); 582 printf("%s: type %d msg %d cdb %x iptl: " 583 "%d:%d:%d:%d tag 0x%04x " 584 "flag %#x status %x\n", 585 __func__, 586 tmp_io->io_hdr.io_type, 587 tmp_io->io_hdr.msg_type, 588 tmp_io->scsiio.cdb[0], 589 tmp_io->io_hdr.nexus.initid.id, 590 tmp_io->io_hdr.nexus.targ_port, 591 tmp_io->io_hdr.nexus.targ_target.id, 592 tmp_io->io_hdr.nexus.targ_lun, 593 (tmp_io->io_hdr.io_type == 594 CTL_IO_TASK) ? 595 tmp_io->taskio.tag_num : 596 tmp_io->scsiio.tag_num, 597 tmp_io->io_hdr.flags, 598 tmp_io->io_hdr.status); 599 } 600 #endif 601 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 602 ctl_enqueue_isc((union ctl_io *)ctsio); 603 } 604 605 /* 606 * ISC (Inter Shelf Communication) event handler. Events from the HA 607 * subsystem come in here. 608 */ 609 static void 610 ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 611 { 612 struct ctl_softc *ctl_softc; 613 union ctl_io *io; 614 struct ctl_prio *presio; 615 ctl_ha_status isc_status; 616 617 ctl_softc = control_softc; 618 io = NULL; 619 620 621 #if 0 622 printf("CTL: Isc Msg event %d\n", event); 623 #endif 624 if (event == CTL_HA_EVT_MSG_RECV) { 625 union ctl_ha_msg msg_info; 626 627 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 628 sizeof(msg_info), /*wait*/ 0); 629 #if 0 630 printf("CTL: msg_type %d\n", msg_info.msg_type); 631 #endif 632 if (isc_status != 0) { 633 printf("Error receiving message, status = %d\n", 634 isc_status); 635 return; 636 } 637 638 switch (msg_info.hdr.msg_type) { 639 case CTL_MSG_SERIALIZE: 640 #if 0 641 printf("Serialize\n"); 642 #endif 643 io = ctl_alloc_io_nowait(ctl_softc->othersc_pool); 644 if (io == NULL) { 645 printf("ctl_isc_event_handler: can't allocate " 646 "ctl_io!\n"); 647 /* Bad Juju */ 648 /* Need to set busy and send msg back */ 649 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 650 msg_info.hdr.status = CTL_SCSI_ERROR; 651 msg_info.scsi.scsi_status = SCSI_STATUS_BUSY; 652 msg_info.scsi.sense_len = 0; 653 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 654 sizeof(msg_info), 0) > CTL_HA_STATUS_SUCCESS){ 655 } 656 goto bailout; 657 } 658 ctl_zero_io(io); 659 // populate ctsio from msg_info 660 io->io_hdr.io_type = CTL_IO_SCSI; 661 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 662 io->io_hdr.original_sc = msg_info.hdr.original_sc; 663 #if 0 664 printf("pOrig %x\n", (int)msg_info.original_sc); 665 #endif 666 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 667 CTL_FLAG_IO_ACTIVE; 668 /* 669 * If we're in serialization-only mode, we don't 670 * want to go through full done processing. Thus 671 * the COPY flag. 672 * 673 * XXX KDM add another flag that is more specific. 674 */ 675 if (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY) 676 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 677 io->io_hdr.nexus = msg_info.hdr.nexus; 678 #if 0 679 printf("targ %d, port %d, iid %d, lun %d\n", 680 io->io_hdr.nexus.targ_target.id, 681 io->io_hdr.nexus.targ_port, 682 io->io_hdr.nexus.initid.id, 683 io->io_hdr.nexus.targ_lun); 684 #endif 685 io->scsiio.tag_num = msg_info.scsi.tag_num; 686 io->scsiio.tag_type = msg_info.scsi.tag_type; 687 memcpy(io->scsiio.cdb, msg_info.scsi.cdb, 688 CTL_MAX_CDBLEN); 689 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 690 const struct ctl_cmd_entry *entry; 691 692 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 693 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 694 io->io_hdr.flags |= 695 entry->flags & CTL_FLAG_DATA_MASK; 696 } 697 ctl_enqueue_isc(io); 698 break; 699 700 /* Performed on the Originating SC, XFER mode only */ 701 case CTL_MSG_DATAMOVE: { 702 struct ctl_sg_entry *sgl; 703 int i, j; 704 705 io = msg_info.hdr.original_sc; 706 if (io == NULL) { 707 printf("%s: original_sc == NULL!\n", __func__); 708 /* XXX KDM do something here */ 709 break; 710 } 711 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 712 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 713 /* 714 * Keep track of this, we need to send it back over 715 * when the datamove is complete. 716 */ 717 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 718 719 if (msg_info.dt.sg_sequence == 0) { 720 /* 721 * XXX KDM we use the preallocated S/G list 722 * here, but we'll need to change this to 723 * dynamic allocation if we need larger S/G 724 * lists. 725 */ 726 if (msg_info.dt.kern_sg_entries > 727 sizeof(io->io_hdr.remote_sglist) / 728 sizeof(io->io_hdr.remote_sglist[0])) { 729 printf("%s: number of S/G entries " 730 "needed %u > allocated num %zd\n", 731 __func__, 732 msg_info.dt.kern_sg_entries, 733 sizeof(io->io_hdr.remote_sglist)/ 734 sizeof(io->io_hdr.remote_sglist[0])); 735 736 /* 737 * XXX KDM send a message back to 738 * the other side to shut down the 739 * DMA. The error will come back 740 * through via the normal channel. 741 */ 742 break; 743 } 744 sgl = io->io_hdr.remote_sglist; 745 memset(sgl, 0, 746 sizeof(io->io_hdr.remote_sglist)); 747 748 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 749 750 io->scsiio.kern_sg_entries = 751 msg_info.dt.kern_sg_entries; 752 io->scsiio.rem_sg_entries = 753 msg_info.dt.kern_sg_entries; 754 io->scsiio.kern_data_len = 755 msg_info.dt.kern_data_len; 756 io->scsiio.kern_total_len = 757 msg_info.dt.kern_total_len; 758 io->scsiio.kern_data_resid = 759 msg_info.dt.kern_data_resid; 760 io->scsiio.kern_rel_offset = 761 msg_info.dt.kern_rel_offset; 762 /* 763 * Clear out per-DMA flags. 764 */ 765 io->io_hdr.flags &= ~CTL_FLAG_RDMA_MASK; 766 /* 767 * Add per-DMA flags that are set for this 768 * particular DMA request. 769 */ 770 io->io_hdr.flags |= msg_info.dt.flags & 771 CTL_FLAG_RDMA_MASK; 772 } else 773 sgl = (struct ctl_sg_entry *) 774 io->scsiio.kern_data_ptr; 775 776 for (i = msg_info.dt.sent_sg_entries, j = 0; 777 i < (msg_info.dt.sent_sg_entries + 778 msg_info.dt.cur_sg_entries); i++, j++) { 779 sgl[i].addr = msg_info.dt.sg_list[j].addr; 780 sgl[i].len = msg_info.dt.sg_list[j].len; 781 782 #if 0 783 printf("%s: L: %p,%d -> %p,%d j=%d, i=%d\n", 784 __func__, 785 msg_info.dt.sg_list[j].addr, 786 msg_info.dt.sg_list[j].len, 787 sgl[i].addr, sgl[i].len, j, i); 788 #endif 789 } 790 #if 0 791 memcpy(&sgl[msg_info.dt.sent_sg_entries], 792 msg_info.dt.sg_list, 793 sizeof(*sgl) * msg_info.dt.cur_sg_entries); 794 #endif 795 796 /* 797 * If this is the last piece of the I/O, we've got 798 * the full S/G list. Queue processing in the thread. 799 * Otherwise wait for the next piece. 800 */ 801 if (msg_info.dt.sg_last != 0) 802 ctl_enqueue_isc(io); 803 break; 804 } 805 /* Performed on the Serializing (primary) SC, XFER mode only */ 806 case CTL_MSG_DATAMOVE_DONE: { 807 if (msg_info.hdr.serializing_sc == NULL) { 808 printf("%s: serializing_sc == NULL!\n", 809 __func__); 810 /* XXX KDM now what? */ 811 break; 812 } 813 /* 814 * We grab the sense information here in case 815 * there was a failure, so we can return status 816 * back to the initiator. 817 */ 818 io = msg_info.hdr.serializing_sc; 819 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 820 io->io_hdr.status = msg_info.hdr.status; 821 io->scsiio.scsi_status = msg_info.scsi.scsi_status; 822 io->scsiio.sense_len = msg_info.scsi.sense_len; 823 io->scsiio.sense_residual =msg_info.scsi.sense_residual; 824 io->io_hdr.port_status = msg_info.scsi.fetd_status; 825 io->scsiio.residual = msg_info.scsi.residual; 826 memcpy(&io->scsiio.sense_data,&msg_info.scsi.sense_data, 827 sizeof(io->scsiio.sense_data)); 828 ctl_enqueue_isc(io); 829 break; 830 } 831 832 /* Preformed on Originating SC, SER_ONLY mode */ 833 case CTL_MSG_R2R: 834 io = msg_info.hdr.original_sc; 835 if (io == NULL) { 836 printf("%s: Major Bummer\n", __func__); 837 return; 838 } else { 839 #if 0 840 printf("pOrig %x\n",(int) ctsio); 841 #endif 842 } 843 io->io_hdr.msg_type = CTL_MSG_R2R; 844 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 845 ctl_enqueue_isc(io); 846 break; 847 848 /* 849 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 850 * mode. 851 * Performed on the Originating (i.e. secondary) SC in XFER 852 * mode 853 */ 854 case CTL_MSG_FINISH_IO: 855 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) 856 ctl_isc_handler_finish_xfer(ctl_softc, 857 &msg_info); 858 else 859 ctl_isc_handler_finish_ser_only(ctl_softc, 860 &msg_info); 861 break; 862 863 /* Preformed on Originating SC */ 864 case CTL_MSG_BAD_JUJU: 865 io = msg_info.hdr.original_sc; 866 if (io == NULL) { 867 printf("%s: Bad JUJU!, original_sc is NULL!\n", 868 __func__); 869 break; 870 } 871 ctl_copy_sense_data(&msg_info, io); 872 /* 873 * IO should have already been cleaned up on other 874 * SC so clear this flag so we won't send a message 875 * back to finish the IO there. 876 */ 877 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 878 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 879 880 /* io = msg_info.hdr.serializing_sc; */ 881 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 882 ctl_enqueue_isc(io); 883 break; 884 885 /* Handle resets sent from the other side */ 886 case CTL_MSG_MANAGE_TASKS: { 887 struct ctl_taskio *taskio; 888 taskio = (struct ctl_taskio *)ctl_alloc_io_nowait( 889 ctl_softc->othersc_pool); 890 if (taskio == NULL) { 891 printf("ctl_isc_event_handler: can't allocate " 892 "ctl_io!\n"); 893 /* Bad Juju */ 894 /* should I just call the proper reset func 895 here??? */ 896 goto bailout; 897 } 898 ctl_zero_io((union ctl_io *)taskio); 899 taskio->io_hdr.io_type = CTL_IO_TASK; 900 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 901 taskio->io_hdr.nexus = msg_info.hdr.nexus; 902 taskio->task_action = msg_info.task.task_action; 903 taskio->tag_num = msg_info.task.tag_num; 904 taskio->tag_type = msg_info.task.tag_type; 905 #ifdef CTL_TIME_IO 906 taskio->io_hdr.start_time = time_uptime; 907 getbintime(&taskio->io_hdr.start_bt); 908 #if 0 909 cs_prof_gettime(&taskio->io_hdr.start_ticks); 910 #endif 911 #endif /* CTL_TIME_IO */ 912 ctl_run_task((union ctl_io *)taskio); 913 break; 914 } 915 /* Persistent Reserve action which needs attention */ 916 case CTL_MSG_PERS_ACTION: 917 presio = (struct ctl_prio *)ctl_alloc_io_nowait( 918 ctl_softc->othersc_pool); 919 if (presio == NULL) { 920 printf("ctl_isc_event_handler: can't allocate " 921 "ctl_io!\n"); 922 /* Bad Juju */ 923 /* Need to set busy and send msg back */ 924 goto bailout; 925 } 926 ctl_zero_io((union ctl_io *)presio); 927 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 928 presio->pr_msg = msg_info.pr; 929 ctl_enqueue_isc((union ctl_io *)presio); 930 break; 931 case CTL_MSG_SYNC_FE: 932 rcv_sync_msg = 1; 933 break; 934 default: 935 printf("How did I get here?\n"); 936 } 937 } else if (event == CTL_HA_EVT_MSG_SENT) { 938 if (param != CTL_HA_STATUS_SUCCESS) { 939 printf("Bad status from ctl_ha_msg_send status %d\n", 940 param); 941 } 942 return; 943 } else if (event == CTL_HA_EVT_DISCONNECT) { 944 printf("CTL: Got a disconnect from Isc\n"); 945 return; 946 } else { 947 printf("ctl_isc_event_handler: Unknown event %d\n", event); 948 return; 949 } 950 951 bailout: 952 return; 953 } 954 955 static void 956 ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 957 { 958 struct scsi_sense_data *sense; 959 960 sense = &dest->scsiio.sense_data; 961 bcopy(&src->scsi.sense_data, sense, sizeof(*sense)); 962 dest->scsiio.scsi_status = src->scsi.scsi_status; 963 dest->scsiio.sense_len = src->scsi.sense_len; 964 dest->io_hdr.status = src->hdr.status; 965 } 966 967 static void 968 ctl_est_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 969 { 970 ctl_ua_type *pu; 971 972 mtx_assert(&lun->lun_lock, MA_OWNED); 973 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 974 if (pu == NULL) 975 return; 976 pu[initidx % CTL_MAX_INIT_PER_PORT] |= ua; 977 } 978 979 static void 980 ctl_est_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 981 { 982 int i, j; 983 984 mtx_assert(&lun->lun_lock, MA_OWNED); 985 for (i = 0; i < CTL_MAX_PORTS; i++) { 986 if (lun->pending_ua[i] == NULL) 987 continue; 988 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 989 if (i * CTL_MAX_INIT_PER_PORT + j == except) 990 continue; 991 lun->pending_ua[i][j] |= ua; 992 } 993 } 994 } 995 996 static void 997 ctl_clr_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 998 { 999 ctl_ua_type *pu; 1000 1001 mtx_assert(&lun->lun_lock, MA_OWNED); 1002 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1003 if (pu == NULL) 1004 return; 1005 pu[initidx % CTL_MAX_INIT_PER_PORT] &= ~ua; 1006 } 1007 1008 static void 1009 ctl_clr_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1010 { 1011 int i, j; 1012 1013 mtx_assert(&lun->lun_lock, MA_OWNED); 1014 for (i = 0; i < CTL_MAX_PORTS; i++) { 1015 if (lun->pending_ua[i] == NULL) 1016 continue; 1017 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 1018 if (i * CTL_MAX_INIT_PER_PORT + j == except) 1019 continue; 1020 lun->pending_ua[i][j] &= ~ua; 1021 } 1022 } 1023 } 1024 1025 static int 1026 ctl_ha_state_sysctl(SYSCTL_HANDLER_ARGS) 1027 { 1028 struct ctl_softc *softc = (struct ctl_softc *)arg1; 1029 struct ctl_lun *lun; 1030 int error, value; 1031 1032 if (softc->flags & CTL_FLAG_ACTIVE_SHELF) 1033 value = 0; 1034 else 1035 value = 1; 1036 1037 error = sysctl_handle_int(oidp, &value, 0, req); 1038 if ((error != 0) || (req->newptr == NULL)) 1039 return (error); 1040 1041 mtx_lock(&softc->ctl_lock); 1042 if (value == 0) 1043 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1044 else 1045 softc->flags &= ~CTL_FLAG_ACTIVE_SHELF; 1046 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1047 mtx_lock(&lun->lun_lock); 1048 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 1049 mtx_unlock(&lun->lun_lock); 1050 } 1051 mtx_unlock(&softc->ctl_lock); 1052 return (0); 1053 } 1054 1055 static int 1056 ctl_init(void) 1057 { 1058 struct ctl_softc *softc; 1059 void *other_pool; 1060 struct ctl_port *port; 1061 int i, error, retval; 1062 //int isc_retval; 1063 1064 retval = 0; 1065 ctl_pause_rtr = 0; 1066 rcv_sync_msg = 0; 1067 1068 control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 1069 M_WAITOK | M_ZERO); 1070 softc = control_softc; 1071 1072 softc->dev = make_dev(&ctl_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, 1073 "cam/ctl"); 1074 1075 softc->dev->si_drv1 = softc; 1076 1077 /* 1078 * By default, return a "bad LUN" peripheral qualifier for unknown 1079 * LUNs. The user can override this default using the tunable or 1080 * sysctl. See the comment in ctl_inquiry_std() for more details. 1081 */ 1082 softc->inquiry_pq_no_lun = 1; 1083 TUNABLE_INT_FETCH("kern.cam.ctl.inquiry_pq_no_lun", 1084 &softc->inquiry_pq_no_lun); 1085 sysctl_ctx_init(&softc->sysctl_ctx); 1086 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1087 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 1088 CTLFLAG_RD, 0, "CAM Target Layer"); 1089 1090 if (softc->sysctl_tree == NULL) { 1091 printf("%s: unable to allocate sysctl tree\n", __func__); 1092 destroy_dev(softc->dev); 1093 free(control_softc, M_DEVBUF); 1094 control_softc = NULL; 1095 return (ENOMEM); 1096 } 1097 1098 SYSCTL_ADD_INT(&softc->sysctl_ctx, 1099 SYSCTL_CHILDREN(softc->sysctl_tree), OID_AUTO, 1100 "inquiry_pq_no_lun", CTLFLAG_RW, 1101 &softc->inquiry_pq_no_lun, 0, 1102 "Report no lun possible for invalid LUNs"); 1103 1104 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 1105 softc->io_zone = uma_zcreate("CTL IO", sizeof(union ctl_io), 1106 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); 1107 softc->open_count = 0; 1108 1109 /* 1110 * Default to actually sending a SYNCHRONIZE CACHE command down to 1111 * the drive. 1112 */ 1113 softc->flags = CTL_FLAG_REAL_SYNC; 1114 1115 /* 1116 * In Copan's HA scheme, the "master" and "slave" roles are 1117 * figured out through the slot the controller is in. Although it 1118 * is an active/active system, someone has to be in charge. 1119 */ 1120 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1121 OID_AUTO, "ha_id", CTLFLAG_RDTUN, &softc->ha_id, 0, 1122 "HA head ID (0 - no HA)"); 1123 if (softc->ha_id == 0) { 1124 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1125 softc->is_single = 1; 1126 softc->port_offset = 0; 1127 } else 1128 softc->port_offset = (softc->ha_id - 1) * CTL_MAX_PORTS; 1129 softc->persis_offset = softc->port_offset * CTL_MAX_INIT_PER_PORT; 1130 1131 /* 1132 * XXX KDM need to figure out where we want to get our target ID 1133 * and WWID. Is it different on each port? 1134 */ 1135 softc->target.id = 0; 1136 softc->target.wwid[0] = 0x12345678; 1137 softc->target.wwid[1] = 0x87654321; 1138 STAILQ_INIT(&softc->lun_list); 1139 STAILQ_INIT(&softc->pending_lun_queue); 1140 STAILQ_INIT(&softc->fe_list); 1141 STAILQ_INIT(&softc->port_list); 1142 STAILQ_INIT(&softc->be_list); 1143 ctl_tpc_init(softc); 1144 1145 if (ctl_pool_create(softc, "othersc", CTL_POOL_ENTRIES_OTHER_SC, 1146 &other_pool) != 0) 1147 { 1148 printf("ctl: can't allocate %d entry other SC pool, " 1149 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1150 return (ENOMEM); 1151 } 1152 softc->othersc_pool = other_pool; 1153 1154 if (worker_threads <= 0) 1155 worker_threads = max(1, mp_ncpus / 4); 1156 if (worker_threads > CTL_MAX_THREADS) 1157 worker_threads = CTL_MAX_THREADS; 1158 1159 for (i = 0; i < worker_threads; i++) { 1160 struct ctl_thread *thr = &softc->threads[i]; 1161 1162 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1163 thr->ctl_softc = softc; 1164 STAILQ_INIT(&thr->incoming_queue); 1165 STAILQ_INIT(&thr->rtr_queue); 1166 STAILQ_INIT(&thr->done_queue); 1167 STAILQ_INIT(&thr->isc_queue); 1168 1169 error = kproc_kthread_add(ctl_work_thread, thr, 1170 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1171 if (error != 0) { 1172 printf("error creating CTL work thread!\n"); 1173 ctl_pool_free(other_pool); 1174 return (error); 1175 } 1176 } 1177 error = kproc_kthread_add(ctl_lun_thread, softc, 1178 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1179 if (error != 0) { 1180 printf("error creating CTL lun thread!\n"); 1181 ctl_pool_free(other_pool); 1182 return (error); 1183 } 1184 error = kproc_kthread_add(ctl_thresh_thread, softc, 1185 &softc->ctl_proc, NULL, 0, 0, "ctl", "thresh"); 1186 if (error != 0) { 1187 printf("error creating CTL threshold thread!\n"); 1188 ctl_pool_free(other_pool); 1189 return (error); 1190 } 1191 if (bootverbose) 1192 printf("ctl: CAM Target Layer loaded\n"); 1193 1194 /* 1195 * Initialize the ioctl front end. 1196 */ 1197 ctl_frontend_register(&ioctl_frontend); 1198 port = &softc->ioctl_info.port; 1199 port->frontend = &ioctl_frontend; 1200 sprintf(softc->ioctl_info.port_name, "ioctl"); 1201 port->port_type = CTL_PORT_IOCTL; 1202 port->num_requested_ctl_io = 100; 1203 port->port_name = softc->ioctl_info.port_name; 1204 port->port_online = ctl_ioctl_online; 1205 port->port_offline = ctl_ioctl_offline; 1206 port->onoff_arg = &softc->ioctl_info; 1207 port->lun_enable = ctl_ioctl_lun_enable; 1208 port->lun_disable = ctl_ioctl_lun_disable; 1209 port->targ_lun_arg = &softc->ioctl_info; 1210 port->fe_datamove = ctl_ioctl_datamove; 1211 port->fe_done = ctl_ioctl_done; 1212 port->max_targets = 15; 1213 port->max_target_id = 15; 1214 1215 if (ctl_port_register(&softc->ioctl_info.port) != 0) { 1216 printf("ctl: ioctl front end registration failed, will " 1217 "continue anyway\n"); 1218 } 1219 1220 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1221 OID_AUTO, "ha_state", CTLTYPE_INT | CTLFLAG_RWTUN, 1222 softc, 0, ctl_ha_state_sysctl, "I", "HA state for this head"); 1223 1224 #ifdef CTL_IO_DELAY 1225 if (sizeof(struct callout) > CTL_TIMER_BYTES) { 1226 printf("sizeof(struct callout) %zd > CTL_TIMER_BYTES %zd\n", 1227 sizeof(struct callout), CTL_TIMER_BYTES); 1228 return (EINVAL); 1229 } 1230 #endif /* CTL_IO_DELAY */ 1231 1232 return (0); 1233 } 1234 1235 void 1236 ctl_shutdown(void) 1237 { 1238 struct ctl_softc *softc; 1239 struct ctl_lun *lun, *next_lun; 1240 1241 softc = (struct ctl_softc *)control_softc; 1242 1243 if (ctl_port_deregister(&softc->ioctl_info.port) != 0) 1244 printf("ctl: ioctl front end deregistration failed\n"); 1245 1246 mtx_lock(&softc->ctl_lock); 1247 1248 /* 1249 * Free up each LUN. 1250 */ 1251 for (lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; lun = next_lun){ 1252 next_lun = STAILQ_NEXT(lun, links); 1253 ctl_free_lun(lun); 1254 } 1255 1256 mtx_unlock(&softc->ctl_lock); 1257 1258 ctl_frontend_deregister(&ioctl_frontend); 1259 1260 #if 0 1261 ctl_shutdown_thread(softc->work_thread); 1262 mtx_destroy(&softc->queue_lock); 1263 #endif 1264 1265 ctl_tpc_shutdown(softc); 1266 uma_zdestroy(softc->io_zone); 1267 mtx_destroy(&softc->ctl_lock); 1268 1269 destroy_dev(softc->dev); 1270 1271 sysctl_ctx_free(&softc->sysctl_ctx); 1272 1273 free(control_softc, M_DEVBUF); 1274 control_softc = NULL; 1275 1276 if (bootverbose) 1277 printf("ctl: CAM Target Layer unloaded\n"); 1278 } 1279 1280 static int 1281 ctl_module_event_handler(module_t mod, int what, void *arg) 1282 { 1283 1284 switch (what) { 1285 case MOD_LOAD: 1286 return (ctl_init()); 1287 case MOD_UNLOAD: 1288 return (EBUSY); 1289 default: 1290 return (EOPNOTSUPP); 1291 } 1292 } 1293 1294 /* 1295 * XXX KDM should we do some access checks here? Bump a reference count to 1296 * prevent a CTL module from being unloaded while someone has it open? 1297 */ 1298 static int 1299 ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1300 { 1301 return (0); 1302 } 1303 1304 static int 1305 ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1306 { 1307 return (0); 1308 } 1309 1310 int 1311 ctl_port_enable(ctl_port_type port_type) 1312 { 1313 struct ctl_softc *softc = control_softc; 1314 struct ctl_port *port; 1315 1316 if (softc->is_single == 0) { 1317 union ctl_ha_msg msg_info; 1318 int isc_retval; 1319 1320 #if 0 1321 printf("%s: HA mode, synchronizing frontend enable\n", 1322 __func__); 1323 #endif 1324 msg_info.hdr.msg_type = CTL_MSG_SYNC_FE; 1325 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1326 sizeof(msg_info), 1 )) > CTL_HA_STATUS_SUCCESS) { 1327 printf("Sync msg send error retval %d\n", isc_retval); 1328 } 1329 if (!rcv_sync_msg) { 1330 isc_retval=ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 1331 sizeof(msg_info), 1); 1332 } 1333 #if 0 1334 printf("CTL:Frontend Enable\n"); 1335 } else { 1336 printf("%s: single mode, skipping frontend synchronization\n", 1337 __func__); 1338 #endif 1339 } 1340 1341 STAILQ_FOREACH(port, &softc->port_list, links) { 1342 if (port_type & port->port_type) 1343 { 1344 #if 0 1345 printf("port %d\n", port->targ_port); 1346 #endif 1347 ctl_port_online(port); 1348 } 1349 } 1350 1351 return (0); 1352 } 1353 1354 int 1355 ctl_port_disable(ctl_port_type port_type) 1356 { 1357 struct ctl_softc *softc; 1358 struct ctl_port *port; 1359 1360 softc = control_softc; 1361 1362 STAILQ_FOREACH(port, &softc->port_list, links) { 1363 if (port_type & port->port_type) 1364 ctl_port_offline(port); 1365 } 1366 1367 return (0); 1368 } 1369 1370 /* 1371 * Returns 0 for success, 1 for failure. 1372 * Currently the only failure mode is if there aren't enough entries 1373 * allocated. So, in case of a failure, look at num_entries_dropped, 1374 * reallocate and try again. 1375 */ 1376 int 1377 ctl_port_list(struct ctl_port_entry *entries, int num_entries_alloced, 1378 int *num_entries_filled, int *num_entries_dropped, 1379 ctl_port_type port_type, int no_virtual) 1380 { 1381 struct ctl_softc *softc; 1382 struct ctl_port *port; 1383 int entries_dropped, entries_filled; 1384 int retval; 1385 int i; 1386 1387 softc = control_softc; 1388 1389 retval = 0; 1390 entries_filled = 0; 1391 entries_dropped = 0; 1392 1393 i = 0; 1394 mtx_lock(&softc->ctl_lock); 1395 STAILQ_FOREACH(port, &softc->port_list, links) { 1396 struct ctl_port_entry *entry; 1397 1398 if ((port->port_type & port_type) == 0) 1399 continue; 1400 1401 if ((no_virtual != 0) 1402 && (port->virtual_port != 0)) 1403 continue; 1404 1405 if (entries_filled >= num_entries_alloced) { 1406 entries_dropped++; 1407 continue; 1408 } 1409 entry = &entries[i]; 1410 1411 entry->port_type = port->port_type; 1412 strlcpy(entry->port_name, port->port_name, 1413 sizeof(entry->port_name)); 1414 entry->physical_port = port->physical_port; 1415 entry->virtual_port = port->virtual_port; 1416 entry->wwnn = port->wwnn; 1417 entry->wwpn = port->wwpn; 1418 1419 i++; 1420 entries_filled++; 1421 } 1422 1423 mtx_unlock(&softc->ctl_lock); 1424 1425 if (entries_dropped > 0) 1426 retval = 1; 1427 1428 *num_entries_dropped = entries_dropped; 1429 *num_entries_filled = entries_filled; 1430 1431 return (retval); 1432 } 1433 1434 static void 1435 ctl_ioctl_online(void *arg) 1436 { 1437 struct ctl_ioctl_info *ioctl_info; 1438 1439 ioctl_info = (struct ctl_ioctl_info *)arg; 1440 1441 ioctl_info->flags |= CTL_IOCTL_FLAG_ENABLED; 1442 } 1443 1444 static void 1445 ctl_ioctl_offline(void *arg) 1446 { 1447 struct ctl_ioctl_info *ioctl_info; 1448 1449 ioctl_info = (struct ctl_ioctl_info *)arg; 1450 1451 ioctl_info->flags &= ~CTL_IOCTL_FLAG_ENABLED; 1452 } 1453 1454 /* 1455 * Remove an initiator by port number and initiator ID. 1456 * Returns 0 for success, -1 for failure. 1457 */ 1458 int 1459 ctl_remove_initiator(struct ctl_port *port, int iid) 1460 { 1461 struct ctl_softc *softc = control_softc; 1462 1463 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1464 1465 if (iid > CTL_MAX_INIT_PER_PORT) { 1466 printf("%s: initiator ID %u > maximun %u!\n", 1467 __func__, iid, CTL_MAX_INIT_PER_PORT); 1468 return (-1); 1469 } 1470 1471 mtx_lock(&softc->ctl_lock); 1472 port->wwpn_iid[iid].in_use--; 1473 port->wwpn_iid[iid].last_use = time_uptime; 1474 mtx_unlock(&softc->ctl_lock); 1475 1476 return (0); 1477 } 1478 1479 /* 1480 * Add an initiator to the initiator map. 1481 * Returns iid for success, < 0 for failure. 1482 */ 1483 int 1484 ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 1485 { 1486 struct ctl_softc *softc = control_softc; 1487 time_t best_time; 1488 int i, best; 1489 1490 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1491 1492 if (iid >= CTL_MAX_INIT_PER_PORT) { 1493 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 1494 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 1495 free(name, M_CTL); 1496 return (-1); 1497 } 1498 1499 mtx_lock(&softc->ctl_lock); 1500 1501 if (iid < 0 && (wwpn != 0 || name != NULL)) { 1502 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1503 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 1504 iid = i; 1505 break; 1506 } 1507 if (name != NULL && port->wwpn_iid[i].name != NULL && 1508 strcmp(name, port->wwpn_iid[i].name) == 0) { 1509 iid = i; 1510 break; 1511 } 1512 } 1513 } 1514 1515 if (iid < 0) { 1516 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1517 if (port->wwpn_iid[i].in_use == 0 && 1518 port->wwpn_iid[i].wwpn == 0 && 1519 port->wwpn_iid[i].name == NULL) { 1520 iid = i; 1521 break; 1522 } 1523 } 1524 } 1525 1526 if (iid < 0) { 1527 best = -1; 1528 best_time = INT32_MAX; 1529 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1530 if (port->wwpn_iid[i].in_use == 0) { 1531 if (port->wwpn_iid[i].last_use < best_time) { 1532 best = i; 1533 best_time = port->wwpn_iid[i].last_use; 1534 } 1535 } 1536 } 1537 iid = best; 1538 } 1539 1540 if (iid < 0) { 1541 mtx_unlock(&softc->ctl_lock); 1542 free(name, M_CTL); 1543 return (-2); 1544 } 1545 1546 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 1547 /* 1548 * This is not an error yet. 1549 */ 1550 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 1551 #if 0 1552 printf("%s: port %d iid %u WWPN %#jx arrived" 1553 " again\n", __func__, port->targ_port, 1554 iid, (uintmax_t)wwpn); 1555 #endif 1556 goto take; 1557 } 1558 if (name != NULL && port->wwpn_iid[iid].name != NULL && 1559 strcmp(name, port->wwpn_iid[iid].name) == 0) { 1560 #if 0 1561 printf("%s: port %d iid %u name '%s' arrived" 1562 " again\n", __func__, port->targ_port, 1563 iid, name); 1564 #endif 1565 goto take; 1566 } 1567 1568 /* 1569 * This is an error, but what do we do about it? The 1570 * driver is telling us we have a new WWPN for this 1571 * initiator ID, so we pretty much need to use it. 1572 */ 1573 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 1574 " but WWPN %#jx '%s' is still at that address\n", 1575 __func__, port->targ_port, iid, wwpn, name, 1576 (uintmax_t)port->wwpn_iid[iid].wwpn, 1577 port->wwpn_iid[iid].name); 1578 1579 /* 1580 * XXX KDM clear have_ca and ua_pending on each LUN for 1581 * this initiator. 1582 */ 1583 } 1584 take: 1585 free(port->wwpn_iid[iid].name, M_CTL); 1586 port->wwpn_iid[iid].name = name; 1587 port->wwpn_iid[iid].wwpn = wwpn; 1588 port->wwpn_iid[iid].in_use++; 1589 mtx_unlock(&softc->ctl_lock); 1590 1591 return (iid); 1592 } 1593 1594 static int 1595 ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 1596 { 1597 int len; 1598 1599 switch (port->port_type) { 1600 case CTL_PORT_FC: 1601 { 1602 struct scsi_transportid_fcp *id = 1603 (struct scsi_transportid_fcp *)buf; 1604 if (port->wwpn_iid[iid].wwpn == 0) 1605 return (0); 1606 memset(id, 0, sizeof(*id)); 1607 id->format_protocol = SCSI_PROTO_FC; 1608 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 1609 return (sizeof(*id)); 1610 } 1611 case CTL_PORT_ISCSI: 1612 { 1613 struct scsi_transportid_iscsi_port *id = 1614 (struct scsi_transportid_iscsi_port *)buf; 1615 if (port->wwpn_iid[iid].name == NULL) 1616 return (0); 1617 memset(id, 0, 256); 1618 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 1619 SCSI_PROTO_ISCSI; 1620 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 1621 len = roundup2(min(len, 252), 4); 1622 scsi_ulto2b(len, id->additional_length); 1623 return (sizeof(*id) + len); 1624 } 1625 case CTL_PORT_SAS: 1626 { 1627 struct scsi_transportid_sas *id = 1628 (struct scsi_transportid_sas *)buf; 1629 if (port->wwpn_iid[iid].wwpn == 0) 1630 return (0); 1631 memset(id, 0, sizeof(*id)); 1632 id->format_protocol = SCSI_PROTO_SAS; 1633 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 1634 return (sizeof(*id)); 1635 } 1636 default: 1637 { 1638 struct scsi_transportid_spi *id = 1639 (struct scsi_transportid_spi *)buf; 1640 memset(id, 0, sizeof(*id)); 1641 id->format_protocol = SCSI_PROTO_SPI; 1642 scsi_ulto2b(iid, id->scsi_addr); 1643 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 1644 return (sizeof(*id)); 1645 } 1646 } 1647 } 1648 1649 static int 1650 ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id) 1651 { 1652 return (0); 1653 } 1654 1655 static int 1656 ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id) 1657 { 1658 return (0); 1659 } 1660 1661 /* 1662 * Data movement routine for the CTL ioctl frontend port. 1663 */ 1664 static int 1665 ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio) 1666 { 1667 struct ctl_sg_entry *ext_sglist, *kern_sglist; 1668 struct ctl_sg_entry ext_entry, kern_entry; 1669 int ext_sglen, ext_sg_entries, kern_sg_entries; 1670 int ext_sg_start, ext_offset; 1671 int len_to_copy, len_copied; 1672 int kern_watermark, ext_watermark; 1673 int ext_sglist_malloced; 1674 int i, j; 1675 1676 ext_sglist_malloced = 0; 1677 ext_sg_start = 0; 1678 ext_offset = 0; 1679 1680 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove\n")); 1681 1682 /* 1683 * If this flag is set, fake the data transfer. 1684 */ 1685 if (ctsio->io_hdr.flags & CTL_FLAG_NO_DATAMOVE) { 1686 ctsio->ext_data_filled = ctsio->ext_data_len; 1687 goto bailout; 1688 } 1689 1690 /* 1691 * To simplify things here, if we have a single buffer, stick it in 1692 * a S/G entry and just make it a single entry S/G list. 1693 */ 1694 if (ctsio->io_hdr.flags & CTL_FLAG_EDPTR_SGLIST) { 1695 int len_seen; 1696 1697 ext_sglen = ctsio->ext_sg_entries * sizeof(*ext_sglist); 1698 1699 ext_sglist = (struct ctl_sg_entry *)malloc(ext_sglen, M_CTL, 1700 M_WAITOK); 1701 ext_sglist_malloced = 1; 1702 if (copyin(ctsio->ext_data_ptr, ext_sglist, 1703 ext_sglen) != 0) { 1704 ctl_set_internal_failure(ctsio, 1705 /*sks_valid*/ 0, 1706 /*retry_count*/ 0); 1707 goto bailout; 1708 } 1709 ext_sg_entries = ctsio->ext_sg_entries; 1710 len_seen = 0; 1711 for (i = 0; i < ext_sg_entries; i++) { 1712 if ((len_seen + ext_sglist[i].len) >= 1713 ctsio->ext_data_filled) { 1714 ext_sg_start = i; 1715 ext_offset = ctsio->ext_data_filled - len_seen; 1716 break; 1717 } 1718 len_seen += ext_sglist[i].len; 1719 } 1720 } else { 1721 ext_sglist = &ext_entry; 1722 ext_sglist->addr = ctsio->ext_data_ptr; 1723 ext_sglist->len = ctsio->ext_data_len; 1724 ext_sg_entries = 1; 1725 ext_sg_start = 0; 1726 ext_offset = ctsio->ext_data_filled; 1727 } 1728 1729 if (ctsio->kern_sg_entries > 0) { 1730 kern_sglist = (struct ctl_sg_entry *)ctsio->kern_data_ptr; 1731 kern_sg_entries = ctsio->kern_sg_entries; 1732 } else { 1733 kern_sglist = &kern_entry; 1734 kern_sglist->addr = ctsio->kern_data_ptr; 1735 kern_sglist->len = ctsio->kern_data_len; 1736 kern_sg_entries = 1; 1737 } 1738 1739 1740 kern_watermark = 0; 1741 ext_watermark = ext_offset; 1742 len_copied = 0; 1743 for (i = ext_sg_start, j = 0; 1744 i < ext_sg_entries && j < kern_sg_entries;) { 1745 uint8_t *ext_ptr, *kern_ptr; 1746 1747 len_to_copy = ctl_min(ext_sglist[i].len - ext_watermark, 1748 kern_sglist[j].len - kern_watermark); 1749 1750 ext_ptr = (uint8_t *)ext_sglist[i].addr; 1751 ext_ptr = ext_ptr + ext_watermark; 1752 if (ctsio->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 1753 /* 1754 * XXX KDM fix this! 1755 */ 1756 panic("need to implement bus address support"); 1757 #if 0 1758 kern_ptr = bus_to_virt(kern_sglist[j].addr); 1759 #endif 1760 } else 1761 kern_ptr = (uint8_t *)kern_sglist[j].addr; 1762 kern_ptr = kern_ptr + kern_watermark; 1763 1764 kern_watermark += len_to_copy; 1765 ext_watermark += len_to_copy; 1766 1767 if ((ctsio->io_hdr.flags & CTL_FLAG_DATA_MASK) == 1768 CTL_FLAG_DATA_IN) { 1769 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1770 "bytes to user\n", len_to_copy)); 1771 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1772 "to %p\n", kern_ptr, ext_ptr)); 1773 if (copyout(kern_ptr, ext_ptr, len_to_copy) != 0) { 1774 ctl_set_internal_failure(ctsio, 1775 /*sks_valid*/ 0, 1776 /*retry_count*/ 0); 1777 goto bailout; 1778 } 1779 } else { 1780 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1781 "bytes from user\n", len_to_copy)); 1782 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1783 "to %p\n", ext_ptr, kern_ptr)); 1784 if (copyin(ext_ptr, kern_ptr, len_to_copy)!= 0){ 1785 ctl_set_internal_failure(ctsio, 1786 /*sks_valid*/ 0, 1787 /*retry_count*/0); 1788 goto bailout; 1789 } 1790 } 1791 1792 len_copied += len_to_copy; 1793 1794 if (ext_sglist[i].len == ext_watermark) { 1795 i++; 1796 ext_watermark = 0; 1797 } 1798 1799 if (kern_sglist[j].len == kern_watermark) { 1800 j++; 1801 kern_watermark = 0; 1802 } 1803 } 1804 1805 ctsio->ext_data_filled += len_copied; 1806 1807 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_sg_entries: %d, " 1808 "kern_sg_entries: %d\n", ext_sg_entries, 1809 kern_sg_entries)); 1810 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_data_len = %d, " 1811 "kern_data_len = %d\n", ctsio->ext_data_len, 1812 ctsio->kern_data_len)); 1813 1814 1815 /* XXX KDM set residual?? */ 1816 bailout: 1817 1818 if (ext_sglist_malloced != 0) 1819 free(ext_sglist, M_CTL); 1820 1821 return (CTL_RETVAL_COMPLETE); 1822 } 1823 1824 /* 1825 * Serialize a command that went down the "wrong" side, and so was sent to 1826 * this controller for execution. The logic is a little different than the 1827 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 1828 * sent back to the other side, but in the success case, we execute the 1829 * command on this side (XFER mode) or tell the other side to execute it 1830 * (SER_ONLY mode). 1831 */ 1832 static int 1833 ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 1834 { 1835 struct ctl_softc *ctl_softc; 1836 union ctl_ha_msg msg_info; 1837 struct ctl_lun *lun; 1838 int retval = 0; 1839 uint32_t targ_lun; 1840 1841 ctl_softc = control_softc; 1842 1843 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 1844 lun = ctl_softc->ctl_luns[targ_lun]; 1845 if (lun==NULL) 1846 { 1847 /* 1848 * Why isn't LUN defined? The other side wouldn't 1849 * send a cmd if the LUN is undefined. 1850 */ 1851 printf("%s: Bad JUJU!, LUN is NULL!\n", __func__); 1852 1853 /* "Logical unit not supported" */ 1854 ctl_set_sense_data(&msg_info.scsi.sense_data, 1855 lun, 1856 /*sense_format*/SSD_TYPE_NONE, 1857 /*current_error*/ 1, 1858 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1859 /*asc*/ 0x25, 1860 /*ascq*/ 0x00, 1861 SSD_ELEM_NONE); 1862 1863 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1864 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1865 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1866 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1867 msg_info.hdr.serializing_sc = NULL; 1868 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1869 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1870 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1871 } 1872 return(1); 1873 1874 } 1875 1876 mtx_lock(&lun->lun_lock); 1877 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1878 1879 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 1880 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 1881 ooa_links))) { 1882 case CTL_ACTION_BLOCK: 1883 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 1884 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 1885 blocked_links); 1886 break; 1887 case CTL_ACTION_PASS: 1888 case CTL_ACTION_SKIP: 1889 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 1890 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 1891 ctl_enqueue_rtr((union ctl_io *)ctsio); 1892 } else { 1893 1894 /* send msg back to other side */ 1895 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1896 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 1897 msg_info.hdr.msg_type = CTL_MSG_R2R; 1898 #if 0 1899 printf("2. pOrig %x\n", (int)msg_info.hdr.original_sc); 1900 #endif 1901 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1902 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1903 } 1904 } 1905 break; 1906 case CTL_ACTION_OVERLAP: 1907 /* OVERLAPPED COMMANDS ATTEMPTED */ 1908 ctl_set_sense_data(&msg_info.scsi.sense_data, 1909 lun, 1910 /*sense_format*/SSD_TYPE_NONE, 1911 /*current_error*/ 1, 1912 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1913 /*asc*/ 0x4E, 1914 /*ascq*/ 0x00, 1915 SSD_ELEM_NONE); 1916 1917 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1918 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1919 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1920 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1921 msg_info.hdr.serializing_sc = NULL; 1922 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1923 #if 0 1924 printf("BAD JUJU:Major Bummer Overlap\n"); 1925 #endif 1926 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1927 retval = 1; 1928 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1929 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1930 } 1931 break; 1932 case CTL_ACTION_OVERLAP_TAG: 1933 /* TAGGED OVERLAPPED COMMANDS (NN = QUEUE TAG) */ 1934 ctl_set_sense_data(&msg_info.scsi.sense_data, 1935 lun, 1936 /*sense_format*/SSD_TYPE_NONE, 1937 /*current_error*/ 1, 1938 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1939 /*asc*/ 0x4D, 1940 /*ascq*/ ctsio->tag_num & 0xff, 1941 SSD_ELEM_NONE); 1942 1943 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1944 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1945 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1946 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1947 msg_info.hdr.serializing_sc = NULL; 1948 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1949 #if 0 1950 printf("BAD JUJU:Major Bummer Overlap Tag\n"); 1951 #endif 1952 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1953 retval = 1; 1954 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1955 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1956 } 1957 break; 1958 case CTL_ACTION_ERROR: 1959 default: 1960 /* "Internal target failure" */ 1961 ctl_set_sense_data(&msg_info.scsi.sense_data, 1962 lun, 1963 /*sense_format*/SSD_TYPE_NONE, 1964 /*current_error*/ 1, 1965 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 1966 /*asc*/ 0x44, 1967 /*ascq*/ 0x00, 1968 SSD_ELEM_NONE); 1969 1970 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1971 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1972 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1973 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1974 msg_info.hdr.serializing_sc = NULL; 1975 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1976 #if 0 1977 printf("BAD JUJU:Major Bummer HW Error\n"); 1978 #endif 1979 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1980 retval = 1; 1981 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1982 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1983 } 1984 break; 1985 } 1986 mtx_unlock(&lun->lun_lock); 1987 return (retval); 1988 } 1989 1990 static int 1991 ctl_ioctl_submit_wait(union ctl_io *io) 1992 { 1993 struct ctl_fe_ioctl_params params; 1994 ctl_fe_ioctl_state last_state; 1995 int done, retval; 1996 1997 retval = 0; 1998 1999 bzero(¶ms, sizeof(params)); 2000 2001 mtx_init(¶ms.ioctl_mtx, "ctliocmtx", NULL, MTX_DEF); 2002 cv_init(¶ms.sem, "ctlioccv"); 2003 params.state = CTL_IOCTL_INPROG; 2004 last_state = params.state; 2005 2006 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = ¶ms; 2007 2008 CTL_DEBUG_PRINT(("ctl_ioctl_submit_wait\n")); 2009 2010 /* This shouldn't happen */ 2011 if ((retval = ctl_queue(io)) != CTL_RETVAL_COMPLETE) 2012 return (retval); 2013 2014 done = 0; 2015 2016 do { 2017 mtx_lock(¶ms.ioctl_mtx); 2018 /* 2019 * Check the state here, and don't sleep if the state has 2020 * already changed (i.e. wakeup has already occured, but we 2021 * weren't waiting yet). 2022 */ 2023 if (params.state == last_state) { 2024 /* XXX KDM cv_wait_sig instead? */ 2025 cv_wait(¶ms.sem, ¶ms.ioctl_mtx); 2026 } 2027 last_state = params.state; 2028 2029 switch (params.state) { 2030 case CTL_IOCTL_INPROG: 2031 /* Why did we wake up? */ 2032 /* XXX KDM error here? */ 2033 mtx_unlock(¶ms.ioctl_mtx); 2034 break; 2035 case CTL_IOCTL_DATAMOVE: 2036 CTL_DEBUG_PRINT(("got CTL_IOCTL_DATAMOVE\n")); 2037 2038 /* 2039 * change last_state back to INPROG to avoid 2040 * deadlock on subsequent data moves. 2041 */ 2042 params.state = last_state = CTL_IOCTL_INPROG; 2043 2044 mtx_unlock(¶ms.ioctl_mtx); 2045 ctl_ioctl_do_datamove(&io->scsiio); 2046 /* 2047 * Note that in some cases, most notably writes, 2048 * this will queue the I/O and call us back later. 2049 * In other cases, generally reads, this routine 2050 * will immediately call back and wake us up, 2051 * probably using our own context. 2052 */ 2053 io->scsiio.be_move_done(io); 2054 break; 2055 case CTL_IOCTL_DONE: 2056 mtx_unlock(¶ms.ioctl_mtx); 2057 CTL_DEBUG_PRINT(("got CTL_IOCTL_DONE\n")); 2058 done = 1; 2059 break; 2060 default: 2061 mtx_unlock(¶ms.ioctl_mtx); 2062 /* XXX KDM error here? */ 2063 break; 2064 } 2065 } while (done == 0); 2066 2067 mtx_destroy(¶ms.ioctl_mtx); 2068 cv_destroy(¶ms.sem); 2069 2070 return (CTL_RETVAL_COMPLETE); 2071 } 2072 2073 static void 2074 ctl_ioctl_datamove(union ctl_io *io) 2075 { 2076 struct ctl_fe_ioctl_params *params; 2077 2078 params = (struct ctl_fe_ioctl_params *) 2079 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 2080 2081 mtx_lock(¶ms->ioctl_mtx); 2082 params->state = CTL_IOCTL_DATAMOVE; 2083 cv_broadcast(¶ms->sem); 2084 mtx_unlock(¶ms->ioctl_mtx); 2085 } 2086 2087 static void 2088 ctl_ioctl_done(union ctl_io *io) 2089 { 2090 struct ctl_fe_ioctl_params *params; 2091 2092 params = (struct ctl_fe_ioctl_params *) 2093 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 2094 2095 mtx_lock(¶ms->ioctl_mtx); 2096 params->state = CTL_IOCTL_DONE; 2097 cv_broadcast(¶ms->sem); 2098 mtx_unlock(¶ms->ioctl_mtx); 2099 } 2100 2101 static void 2102 ctl_ioctl_hard_startstop_callback(void *arg, struct cfi_metatask *metatask) 2103 { 2104 struct ctl_fe_ioctl_startstop_info *sd_info; 2105 2106 sd_info = (struct ctl_fe_ioctl_startstop_info *)arg; 2107 2108 sd_info->hs_info.status = metatask->status; 2109 sd_info->hs_info.total_luns = metatask->taskinfo.startstop.total_luns; 2110 sd_info->hs_info.luns_complete = 2111 metatask->taskinfo.startstop.luns_complete; 2112 sd_info->hs_info.luns_failed = metatask->taskinfo.startstop.luns_failed; 2113 2114 cv_broadcast(&sd_info->sem); 2115 } 2116 2117 static void 2118 ctl_ioctl_bbrread_callback(void *arg, struct cfi_metatask *metatask) 2119 { 2120 struct ctl_fe_ioctl_bbrread_info *fe_bbr_info; 2121 2122 fe_bbr_info = (struct ctl_fe_ioctl_bbrread_info *)arg; 2123 2124 mtx_lock(fe_bbr_info->lock); 2125 fe_bbr_info->bbr_info->status = metatask->status; 2126 fe_bbr_info->bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2127 fe_bbr_info->wakeup_done = 1; 2128 mtx_unlock(fe_bbr_info->lock); 2129 2130 cv_broadcast(&fe_bbr_info->sem); 2131 } 2132 2133 /* 2134 * Returns 0 for success, errno for failure. 2135 */ 2136 static int 2137 ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2138 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2139 { 2140 union ctl_io *io; 2141 int retval; 2142 2143 retval = 0; 2144 2145 mtx_lock(&lun->lun_lock); 2146 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2147 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2148 ooa_links)) { 2149 struct ctl_ooa_entry *entry; 2150 2151 /* 2152 * If we've got more than we can fit, just count the 2153 * remaining entries. 2154 */ 2155 if (*cur_fill_num >= ooa_hdr->alloc_num) 2156 continue; 2157 2158 entry = &kern_entries[*cur_fill_num]; 2159 2160 entry->tag_num = io->scsiio.tag_num; 2161 entry->lun_num = lun->lun; 2162 #ifdef CTL_TIME_IO 2163 entry->start_bt = io->io_hdr.start_bt; 2164 #endif 2165 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2166 entry->cdb_len = io->scsiio.cdb_len; 2167 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2168 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2169 2170 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2171 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2172 2173 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2174 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2175 2176 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2177 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2178 2179 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2180 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2181 } 2182 mtx_unlock(&lun->lun_lock); 2183 2184 return (retval); 2185 } 2186 2187 static void * 2188 ctl_copyin_alloc(void *user_addr, int len, char *error_str, 2189 size_t error_str_len) 2190 { 2191 void *kptr; 2192 2193 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2194 2195 if (copyin(user_addr, kptr, len) != 0) { 2196 snprintf(error_str, error_str_len, "Error copying %d bytes " 2197 "from user address %p to kernel address %p", len, 2198 user_addr, kptr); 2199 free(kptr, M_CTL); 2200 return (NULL); 2201 } 2202 2203 return (kptr); 2204 } 2205 2206 static void 2207 ctl_free_args(int num_args, struct ctl_be_arg *args) 2208 { 2209 int i; 2210 2211 if (args == NULL) 2212 return; 2213 2214 for (i = 0; i < num_args; i++) { 2215 free(args[i].kname, M_CTL); 2216 free(args[i].kvalue, M_CTL); 2217 } 2218 2219 free(args, M_CTL); 2220 } 2221 2222 static struct ctl_be_arg * 2223 ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2224 char *error_str, size_t error_str_len) 2225 { 2226 struct ctl_be_arg *args; 2227 int i; 2228 2229 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2230 error_str, error_str_len); 2231 2232 if (args == NULL) 2233 goto bailout; 2234 2235 for (i = 0; i < num_args; i++) { 2236 args[i].kname = NULL; 2237 args[i].kvalue = NULL; 2238 } 2239 2240 for (i = 0; i < num_args; i++) { 2241 uint8_t *tmpptr; 2242 2243 args[i].kname = ctl_copyin_alloc(args[i].name, 2244 args[i].namelen, error_str, error_str_len); 2245 if (args[i].kname == NULL) 2246 goto bailout; 2247 2248 if (args[i].kname[args[i].namelen - 1] != '\0') { 2249 snprintf(error_str, error_str_len, "Argument %d " 2250 "name is not NUL-terminated", i); 2251 goto bailout; 2252 } 2253 2254 if (args[i].flags & CTL_BEARG_RD) { 2255 tmpptr = ctl_copyin_alloc(args[i].value, 2256 args[i].vallen, error_str, error_str_len); 2257 if (tmpptr == NULL) 2258 goto bailout; 2259 if ((args[i].flags & CTL_BEARG_ASCII) 2260 && (tmpptr[args[i].vallen - 1] != '\0')) { 2261 snprintf(error_str, error_str_len, "Argument " 2262 "%d value is not NUL-terminated", i); 2263 goto bailout; 2264 } 2265 args[i].kvalue = tmpptr; 2266 } else { 2267 args[i].kvalue = malloc(args[i].vallen, 2268 M_CTL, M_WAITOK | M_ZERO); 2269 } 2270 } 2271 2272 return (args); 2273 bailout: 2274 2275 ctl_free_args(num_args, args); 2276 2277 return (NULL); 2278 } 2279 2280 static void 2281 ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2282 { 2283 int i; 2284 2285 for (i = 0; i < num_args; i++) { 2286 if (args[i].flags & CTL_BEARG_WR) 2287 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2288 } 2289 } 2290 2291 /* 2292 * Escape characters that are illegal or not recommended in XML. 2293 */ 2294 int 2295 ctl_sbuf_printf_esc(struct sbuf *sb, char *str, int size) 2296 { 2297 char *end = str + size; 2298 int retval; 2299 2300 retval = 0; 2301 2302 for (; *str && str < end; str++) { 2303 switch (*str) { 2304 case '&': 2305 retval = sbuf_printf(sb, "&"); 2306 break; 2307 case '>': 2308 retval = sbuf_printf(sb, ">"); 2309 break; 2310 case '<': 2311 retval = sbuf_printf(sb, "<"); 2312 break; 2313 default: 2314 retval = sbuf_putc(sb, *str); 2315 break; 2316 } 2317 2318 if (retval != 0) 2319 break; 2320 2321 } 2322 2323 return (retval); 2324 } 2325 2326 static void 2327 ctl_id_sbuf(struct ctl_devid *id, struct sbuf *sb) 2328 { 2329 struct scsi_vpd_id_descriptor *desc; 2330 int i; 2331 2332 if (id == NULL || id->len < 4) 2333 return; 2334 desc = (struct scsi_vpd_id_descriptor *)id->data; 2335 switch (desc->id_type & SVPD_ID_TYPE_MASK) { 2336 case SVPD_ID_TYPE_T10: 2337 sbuf_printf(sb, "t10."); 2338 break; 2339 case SVPD_ID_TYPE_EUI64: 2340 sbuf_printf(sb, "eui."); 2341 break; 2342 case SVPD_ID_TYPE_NAA: 2343 sbuf_printf(sb, "naa."); 2344 break; 2345 case SVPD_ID_TYPE_SCSI_NAME: 2346 break; 2347 } 2348 switch (desc->proto_codeset & SVPD_ID_CODESET_MASK) { 2349 case SVPD_ID_CODESET_BINARY: 2350 for (i = 0; i < desc->length; i++) 2351 sbuf_printf(sb, "%02x", desc->identifier[i]); 2352 break; 2353 case SVPD_ID_CODESET_ASCII: 2354 sbuf_printf(sb, "%.*s", (int)desc->length, 2355 (char *)desc->identifier); 2356 break; 2357 case SVPD_ID_CODESET_UTF8: 2358 sbuf_printf(sb, "%s", (char *)desc->identifier); 2359 break; 2360 } 2361 } 2362 2363 static int 2364 ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2365 struct thread *td) 2366 { 2367 struct ctl_softc *softc; 2368 int retval; 2369 2370 softc = control_softc; 2371 2372 retval = 0; 2373 2374 switch (cmd) { 2375 case CTL_IO: { 2376 union ctl_io *io; 2377 void *pool_tmp; 2378 2379 /* 2380 * If we haven't been "enabled", don't allow any SCSI I/O 2381 * to this FETD. 2382 */ 2383 if ((softc->ioctl_info.flags & CTL_IOCTL_FLAG_ENABLED) == 0) { 2384 retval = EPERM; 2385 break; 2386 } 2387 2388 io = ctl_alloc_io(softc->ioctl_info.port.ctl_pool_ref); 2389 2390 /* 2391 * Need to save the pool reference so it doesn't get 2392 * spammed by the user's ctl_io. 2393 */ 2394 pool_tmp = io->io_hdr.pool; 2395 memcpy(io, (void *)addr, sizeof(*io)); 2396 io->io_hdr.pool = pool_tmp; 2397 2398 /* 2399 * No status yet, so make sure the status is set properly. 2400 */ 2401 io->io_hdr.status = CTL_STATUS_NONE; 2402 2403 /* 2404 * The user sets the initiator ID, target and LUN IDs. 2405 */ 2406 io->io_hdr.nexus.targ_port = softc->ioctl_info.port.targ_port; 2407 io->io_hdr.flags |= CTL_FLAG_USER_REQ; 2408 if ((io->io_hdr.io_type == CTL_IO_SCSI) 2409 && (io->scsiio.tag_type != CTL_TAG_UNTAGGED)) 2410 io->scsiio.tag_num = softc->ioctl_info.cur_tag_num++; 2411 2412 retval = ctl_ioctl_submit_wait(io); 2413 2414 if (retval != 0) { 2415 ctl_free_io(io); 2416 break; 2417 } 2418 2419 memcpy((void *)addr, io, sizeof(*io)); 2420 2421 /* return this to our pool */ 2422 ctl_free_io(io); 2423 2424 break; 2425 } 2426 case CTL_ENABLE_PORT: 2427 case CTL_DISABLE_PORT: 2428 case CTL_SET_PORT_WWNS: { 2429 struct ctl_port *port; 2430 struct ctl_port_entry *entry; 2431 2432 entry = (struct ctl_port_entry *)addr; 2433 2434 mtx_lock(&softc->ctl_lock); 2435 STAILQ_FOREACH(port, &softc->port_list, links) { 2436 int action, done; 2437 2438 action = 0; 2439 done = 0; 2440 2441 if ((entry->port_type == CTL_PORT_NONE) 2442 && (entry->targ_port == port->targ_port)) { 2443 /* 2444 * If the user only wants to enable or 2445 * disable or set WWNs on a specific port, 2446 * do the operation and we're done. 2447 */ 2448 action = 1; 2449 done = 1; 2450 } else if (entry->port_type & port->port_type) { 2451 /* 2452 * Compare the user's type mask with the 2453 * particular frontend type to see if we 2454 * have a match. 2455 */ 2456 action = 1; 2457 done = 0; 2458 2459 /* 2460 * Make sure the user isn't trying to set 2461 * WWNs on multiple ports at the same time. 2462 */ 2463 if (cmd == CTL_SET_PORT_WWNS) { 2464 printf("%s: Can't set WWNs on " 2465 "multiple ports\n", __func__); 2466 retval = EINVAL; 2467 break; 2468 } 2469 } 2470 if (action != 0) { 2471 /* 2472 * XXX KDM we have to drop the lock here, 2473 * because the online/offline operations 2474 * can potentially block. We need to 2475 * reference count the frontends so they 2476 * can't go away, 2477 */ 2478 mtx_unlock(&softc->ctl_lock); 2479 2480 if (cmd == CTL_ENABLE_PORT) { 2481 struct ctl_lun *lun; 2482 2483 STAILQ_FOREACH(lun, &softc->lun_list, 2484 links) { 2485 port->lun_enable(port->targ_lun_arg, 2486 lun->target, 2487 lun->lun); 2488 } 2489 2490 ctl_port_online(port); 2491 } else if (cmd == CTL_DISABLE_PORT) { 2492 struct ctl_lun *lun; 2493 2494 ctl_port_offline(port); 2495 2496 STAILQ_FOREACH(lun, &softc->lun_list, 2497 links) { 2498 port->lun_disable( 2499 port->targ_lun_arg, 2500 lun->target, 2501 lun->lun); 2502 } 2503 } 2504 2505 mtx_lock(&softc->ctl_lock); 2506 2507 if (cmd == CTL_SET_PORT_WWNS) 2508 ctl_port_set_wwns(port, 2509 (entry->flags & CTL_PORT_WWNN_VALID) ? 2510 1 : 0, entry->wwnn, 2511 (entry->flags & CTL_PORT_WWPN_VALID) ? 2512 1 : 0, entry->wwpn); 2513 } 2514 if (done != 0) 2515 break; 2516 } 2517 mtx_unlock(&softc->ctl_lock); 2518 break; 2519 } 2520 case CTL_GET_PORT_LIST: { 2521 struct ctl_port *port; 2522 struct ctl_port_list *list; 2523 int i; 2524 2525 list = (struct ctl_port_list *)addr; 2526 2527 if (list->alloc_len != (list->alloc_num * 2528 sizeof(struct ctl_port_entry))) { 2529 printf("%s: CTL_GET_PORT_LIST: alloc_len %u != " 2530 "alloc_num %u * sizeof(struct ctl_port_entry) " 2531 "%zu\n", __func__, list->alloc_len, 2532 list->alloc_num, sizeof(struct ctl_port_entry)); 2533 retval = EINVAL; 2534 break; 2535 } 2536 list->fill_len = 0; 2537 list->fill_num = 0; 2538 list->dropped_num = 0; 2539 i = 0; 2540 mtx_lock(&softc->ctl_lock); 2541 STAILQ_FOREACH(port, &softc->port_list, links) { 2542 struct ctl_port_entry entry, *list_entry; 2543 2544 if (list->fill_num >= list->alloc_num) { 2545 list->dropped_num++; 2546 continue; 2547 } 2548 2549 entry.port_type = port->port_type; 2550 strlcpy(entry.port_name, port->port_name, 2551 sizeof(entry.port_name)); 2552 entry.targ_port = port->targ_port; 2553 entry.physical_port = port->physical_port; 2554 entry.virtual_port = port->virtual_port; 2555 entry.wwnn = port->wwnn; 2556 entry.wwpn = port->wwpn; 2557 if (port->status & CTL_PORT_STATUS_ONLINE) 2558 entry.online = 1; 2559 else 2560 entry.online = 0; 2561 2562 list_entry = &list->entries[i]; 2563 2564 retval = copyout(&entry, list_entry, sizeof(entry)); 2565 if (retval != 0) { 2566 printf("%s: CTL_GET_PORT_LIST: copyout " 2567 "returned %d\n", __func__, retval); 2568 break; 2569 } 2570 i++; 2571 list->fill_num++; 2572 list->fill_len += sizeof(entry); 2573 } 2574 mtx_unlock(&softc->ctl_lock); 2575 2576 /* 2577 * If this is non-zero, we had a copyout fault, so there's 2578 * probably no point in attempting to set the status inside 2579 * the structure. 2580 */ 2581 if (retval != 0) 2582 break; 2583 2584 if (list->dropped_num > 0) 2585 list->status = CTL_PORT_LIST_NEED_MORE_SPACE; 2586 else 2587 list->status = CTL_PORT_LIST_OK; 2588 break; 2589 } 2590 case CTL_DUMP_OOA: { 2591 struct ctl_lun *lun; 2592 union ctl_io *io; 2593 char printbuf[128]; 2594 struct sbuf sb; 2595 2596 mtx_lock(&softc->ctl_lock); 2597 printf("Dumping OOA queues:\n"); 2598 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2599 mtx_lock(&lun->lun_lock); 2600 for (io = (union ctl_io *)TAILQ_FIRST( 2601 &lun->ooa_queue); io != NULL; 2602 io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2603 ooa_links)) { 2604 sbuf_new(&sb, printbuf, sizeof(printbuf), 2605 SBUF_FIXEDLEN); 2606 sbuf_printf(&sb, "LUN %jd tag 0x%04x%s%s%s%s: ", 2607 (intmax_t)lun->lun, 2608 io->scsiio.tag_num, 2609 (io->io_hdr.flags & 2610 CTL_FLAG_BLOCKED) ? "" : " BLOCKED", 2611 (io->io_hdr.flags & 2612 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 2613 (io->io_hdr.flags & 2614 CTL_FLAG_ABORT) ? " ABORT" : "", 2615 (io->io_hdr.flags & 2616 CTL_FLAG_IS_WAS_ON_RTR) ? " RTR" : ""); 2617 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 2618 sbuf_finish(&sb); 2619 printf("%s\n", sbuf_data(&sb)); 2620 } 2621 mtx_unlock(&lun->lun_lock); 2622 } 2623 printf("OOA queues dump done\n"); 2624 mtx_unlock(&softc->ctl_lock); 2625 break; 2626 } 2627 case CTL_GET_OOA: { 2628 struct ctl_lun *lun; 2629 struct ctl_ooa *ooa_hdr; 2630 struct ctl_ooa_entry *entries; 2631 uint32_t cur_fill_num; 2632 2633 ooa_hdr = (struct ctl_ooa *)addr; 2634 2635 if ((ooa_hdr->alloc_len == 0) 2636 || (ooa_hdr->alloc_num == 0)) { 2637 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2638 "must be non-zero\n", __func__, 2639 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2640 retval = EINVAL; 2641 break; 2642 } 2643 2644 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2645 sizeof(struct ctl_ooa_entry))) { 2646 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2647 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2648 __func__, ooa_hdr->alloc_len, 2649 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2650 retval = EINVAL; 2651 break; 2652 } 2653 2654 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2655 if (entries == NULL) { 2656 printf("%s: could not allocate %d bytes for OOA " 2657 "dump\n", __func__, ooa_hdr->alloc_len); 2658 retval = ENOMEM; 2659 break; 2660 } 2661 2662 mtx_lock(&softc->ctl_lock); 2663 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2664 && ((ooa_hdr->lun_num >= CTL_MAX_LUNS) 2665 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2666 mtx_unlock(&softc->ctl_lock); 2667 free(entries, M_CTL); 2668 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2669 __func__, (uintmax_t)ooa_hdr->lun_num); 2670 retval = EINVAL; 2671 break; 2672 } 2673 2674 cur_fill_num = 0; 2675 2676 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2677 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2678 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2679 ooa_hdr, entries); 2680 if (retval != 0) 2681 break; 2682 } 2683 if (retval != 0) { 2684 mtx_unlock(&softc->ctl_lock); 2685 free(entries, M_CTL); 2686 break; 2687 } 2688 } else { 2689 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2690 2691 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num,ooa_hdr, 2692 entries); 2693 } 2694 mtx_unlock(&softc->ctl_lock); 2695 2696 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2697 ooa_hdr->fill_len = ooa_hdr->fill_num * 2698 sizeof(struct ctl_ooa_entry); 2699 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2700 if (retval != 0) { 2701 printf("%s: error copying out %d bytes for OOA dump\n", 2702 __func__, ooa_hdr->fill_len); 2703 } 2704 2705 getbintime(&ooa_hdr->cur_bt); 2706 2707 if (cur_fill_num > ooa_hdr->alloc_num) { 2708 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2709 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2710 } else { 2711 ooa_hdr->dropped_num = 0; 2712 ooa_hdr->status = CTL_OOA_OK; 2713 } 2714 2715 free(entries, M_CTL); 2716 break; 2717 } 2718 case CTL_CHECK_OOA: { 2719 union ctl_io *io; 2720 struct ctl_lun *lun; 2721 struct ctl_ooa_info *ooa_info; 2722 2723 2724 ooa_info = (struct ctl_ooa_info *)addr; 2725 2726 if (ooa_info->lun_id >= CTL_MAX_LUNS) { 2727 ooa_info->status = CTL_OOA_INVALID_LUN; 2728 break; 2729 } 2730 mtx_lock(&softc->ctl_lock); 2731 lun = softc->ctl_luns[ooa_info->lun_id]; 2732 if (lun == NULL) { 2733 mtx_unlock(&softc->ctl_lock); 2734 ooa_info->status = CTL_OOA_INVALID_LUN; 2735 break; 2736 } 2737 mtx_lock(&lun->lun_lock); 2738 mtx_unlock(&softc->ctl_lock); 2739 ooa_info->num_entries = 0; 2740 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 2741 io != NULL; io = (union ctl_io *)TAILQ_NEXT( 2742 &io->io_hdr, ooa_links)) { 2743 ooa_info->num_entries++; 2744 } 2745 mtx_unlock(&lun->lun_lock); 2746 2747 ooa_info->status = CTL_OOA_SUCCESS; 2748 2749 break; 2750 } 2751 case CTL_HARD_START: 2752 case CTL_HARD_STOP: { 2753 struct ctl_fe_ioctl_startstop_info ss_info; 2754 struct cfi_metatask *metatask; 2755 struct mtx hs_mtx; 2756 2757 mtx_init(&hs_mtx, "HS Mutex", NULL, MTX_DEF); 2758 2759 cv_init(&ss_info.sem, "hard start/stop cv" ); 2760 2761 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2762 if (metatask == NULL) { 2763 retval = ENOMEM; 2764 mtx_destroy(&hs_mtx); 2765 break; 2766 } 2767 2768 if (cmd == CTL_HARD_START) 2769 metatask->tasktype = CFI_TASK_STARTUP; 2770 else 2771 metatask->tasktype = CFI_TASK_SHUTDOWN; 2772 2773 metatask->callback = ctl_ioctl_hard_startstop_callback; 2774 metatask->callback_arg = &ss_info; 2775 2776 cfi_action(metatask); 2777 2778 /* Wait for the callback */ 2779 mtx_lock(&hs_mtx); 2780 cv_wait_sig(&ss_info.sem, &hs_mtx); 2781 mtx_unlock(&hs_mtx); 2782 2783 /* 2784 * All information has been copied from the metatask by the 2785 * time cv_broadcast() is called, so we free the metatask here. 2786 */ 2787 cfi_free_metatask(metatask); 2788 2789 memcpy((void *)addr, &ss_info.hs_info, sizeof(ss_info.hs_info)); 2790 2791 mtx_destroy(&hs_mtx); 2792 break; 2793 } 2794 case CTL_BBRREAD: { 2795 struct ctl_bbrread_info *bbr_info; 2796 struct ctl_fe_ioctl_bbrread_info fe_bbr_info; 2797 struct mtx bbr_mtx; 2798 struct cfi_metatask *metatask; 2799 2800 bbr_info = (struct ctl_bbrread_info *)addr; 2801 2802 bzero(&fe_bbr_info, sizeof(fe_bbr_info)); 2803 2804 bzero(&bbr_mtx, sizeof(bbr_mtx)); 2805 mtx_init(&bbr_mtx, "BBR Mutex", NULL, MTX_DEF); 2806 2807 fe_bbr_info.bbr_info = bbr_info; 2808 fe_bbr_info.lock = &bbr_mtx; 2809 2810 cv_init(&fe_bbr_info.sem, "BBR read cv"); 2811 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2812 2813 if (metatask == NULL) { 2814 mtx_destroy(&bbr_mtx); 2815 cv_destroy(&fe_bbr_info.sem); 2816 retval = ENOMEM; 2817 break; 2818 } 2819 metatask->tasktype = CFI_TASK_BBRREAD; 2820 metatask->callback = ctl_ioctl_bbrread_callback; 2821 metatask->callback_arg = &fe_bbr_info; 2822 metatask->taskinfo.bbrread.lun_num = bbr_info->lun_num; 2823 metatask->taskinfo.bbrread.lba = bbr_info->lba; 2824 metatask->taskinfo.bbrread.len = bbr_info->len; 2825 2826 cfi_action(metatask); 2827 2828 mtx_lock(&bbr_mtx); 2829 while (fe_bbr_info.wakeup_done == 0) 2830 cv_wait_sig(&fe_bbr_info.sem, &bbr_mtx); 2831 mtx_unlock(&bbr_mtx); 2832 2833 bbr_info->status = metatask->status; 2834 bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2835 bbr_info->scsi_status = metatask->taskinfo.bbrread.scsi_status; 2836 memcpy(&bbr_info->sense_data, 2837 &metatask->taskinfo.bbrread.sense_data, 2838 ctl_min(sizeof(bbr_info->sense_data), 2839 sizeof(metatask->taskinfo.bbrread.sense_data))); 2840 2841 cfi_free_metatask(metatask); 2842 2843 mtx_destroy(&bbr_mtx); 2844 cv_destroy(&fe_bbr_info.sem); 2845 2846 break; 2847 } 2848 case CTL_DELAY_IO: { 2849 struct ctl_io_delay_info *delay_info; 2850 #ifdef CTL_IO_DELAY 2851 struct ctl_lun *lun; 2852 #endif /* CTL_IO_DELAY */ 2853 2854 delay_info = (struct ctl_io_delay_info *)addr; 2855 2856 #ifdef CTL_IO_DELAY 2857 mtx_lock(&softc->ctl_lock); 2858 2859 if ((delay_info->lun_id >= CTL_MAX_LUNS) 2860 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2861 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2862 } else { 2863 lun = softc->ctl_luns[delay_info->lun_id]; 2864 mtx_lock(&lun->lun_lock); 2865 2866 delay_info->status = CTL_DELAY_STATUS_OK; 2867 2868 switch (delay_info->delay_type) { 2869 case CTL_DELAY_TYPE_CONT: 2870 break; 2871 case CTL_DELAY_TYPE_ONESHOT: 2872 break; 2873 default: 2874 delay_info->status = 2875 CTL_DELAY_STATUS_INVALID_TYPE; 2876 break; 2877 } 2878 2879 switch (delay_info->delay_loc) { 2880 case CTL_DELAY_LOC_DATAMOVE: 2881 lun->delay_info.datamove_type = 2882 delay_info->delay_type; 2883 lun->delay_info.datamove_delay = 2884 delay_info->delay_secs; 2885 break; 2886 case CTL_DELAY_LOC_DONE: 2887 lun->delay_info.done_type = 2888 delay_info->delay_type; 2889 lun->delay_info.done_delay = 2890 delay_info->delay_secs; 2891 break; 2892 default: 2893 delay_info->status = 2894 CTL_DELAY_STATUS_INVALID_LOC; 2895 break; 2896 } 2897 mtx_unlock(&lun->lun_lock); 2898 } 2899 2900 mtx_unlock(&softc->ctl_lock); 2901 #else 2902 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2903 #endif /* CTL_IO_DELAY */ 2904 break; 2905 } 2906 case CTL_REALSYNC_SET: { 2907 int *syncstate; 2908 2909 syncstate = (int *)addr; 2910 2911 mtx_lock(&softc->ctl_lock); 2912 switch (*syncstate) { 2913 case 0: 2914 softc->flags &= ~CTL_FLAG_REAL_SYNC; 2915 break; 2916 case 1: 2917 softc->flags |= CTL_FLAG_REAL_SYNC; 2918 break; 2919 default: 2920 retval = EINVAL; 2921 break; 2922 } 2923 mtx_unlock(&softc->ctl_lock); 2924 break; 2925 } 2926 case CTL_REALSYNC_GET: { 2927 int *syncstate; 2928 2929 syncstate = (int*)addr; 2930 2931 mtx_lock(&softc->ctl_lock); 2932 if (softc->flags & CTL_FLAG_REAL_SYNC) 2933 *syncstate = 1; 2934 else 2935 *syncstate = 0; 2936 mtx_unlock(&softc->ctl_lock); 2937 2938 break; 2939 } 2940 case CTL_SETSYNC: 2941 case CTL_GETSYNC: { 2942 struct ctl_sync_info *sync_info; 2943 struct ctl_lun *lun; 2944 2945 sync_info = (struct ctl_sync_info *)addr; 2946 2947 mtx_lock(&softc->ctl_lock); 2948 lun = softc->ctl_luns[sync_info->lun_id]; 2949 if (lun == NULL) { 2950 mtx_unlock(&softc->ctl_lock); 2951 sync_info->status = CTL_GS_SYNC_NO_LUN; 2952 } 2953 /* 2954 * Get or set the sync interval. We're not bounds checking 2955 * in the set case, hopefully the user won't do something 2956 * silly. 2957 */ 2958 mtx_lock(&lun->lun_lock); 2959 mtx_unlock(&softc->ctl_lock); 2960 if (cmd == CTL_GETSYNC) 2961 sync_info->sync_interval = lun->sync_interval; 2962 else 2963 lun->sync_interval = sync_info->sync_interval; 2964 mtx_unlock(&lun->lun_lock); 2965 2966 sync_info->status = CTL_GS_SYNC_OK; 2967 2968 break; 2969 } 2970 case CTL_GETSTATS: { 2971 struct ctl_stats *stats; 2972 struct ctl_lun *lun; 2973 int i; 2974 2975 stats = (struct ctl_stats *)addr; 2976 2977 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2978 stats->alloc_len) { 2979 stats->status = CTL_SS_NEED_MORE_SPACE; 2980 stats->num_luns = softc->num_luns; 2981 break; 2982 } 2983 /* 2984 * XXX KDM no locking here. If the LUN list changes, 2985 * things can blow up. 2986 */ 2987 for (i = 0, lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; 2988 i++, lun = STAILQ_NEXT(lun, links)) { 2989 retval = copyout(&lun->stats, &stats->lun_stats[i], 2990 sizeof(lun->stats)); 2991 if (retval != 0) 2992 break; 2993 } 2994 stats->num_luns = softc->num_luns; 2995 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2996 softc->num_luns; 2997 stats->status = CTL_SS_OK; 2998 #ifdef CTL_TIME_IO 2999 stats->flags = CTL_STATS_FLAG_TIME_VALID; 3000 #else 3001 stats->flags = CTL_STATS_FLAG_NONE; 3002 #endif 3003 getnanouptime(&stats->timestamp); 3004 break; 3005 } 3006 case CTL_ERROR_INJECT: { 3007 struct ctl_error_desc *err_desc, *new_err_desc; 3008 struct ctl_lun *lun; 3009 3010 err_desc = (struct ctl_error_desc *)addr; 3011 3012 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 3013 M_WAITOK | M_ZERO); 3014 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 3015 3016 mtx_lock(&softc->ctl_lock); 3017 lun = softc->ctl_luns[err_desc->lun_id]; 3018 if (lun == NULL) { 3019 mtx_unlock(&softc->ctl_lock); 3020 free(new_err_desc, M_CTL); 3021 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 3022 __func__, (uintmax_t)err_desc->lun_id); 3023 retval = EINVAL; 3024 break; 3025 } 3026 mtx_lock(&lun->lun_lock); 3027 mtx_unlock(&softc->ctl_lock); 3028 3029 /* 3030 * We could do some checking here to verify the validity 3031 * of the request, but given the complexity of error 3032 * injection requests, the checking logic would be fairly 3033 * complex. 3034 * 3035 * For now, if the request is invalid, it just won't get 3036 * executed and might get deleted. 3037 */ 3038 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 3039 3040 /* 3041 * XXX KDM check to make sure the serial number is unique, 3042 * in case we somehow manage to wrap. That shouldn't 3043 * happen for a very long time, but it's the right thing to 3044 * do. 3045 */ 3046 new_err_desc->serial = lun->error_serial; 3047 err_desc->serial = lun->error_serial; 3048 lun->error_serial++; 3049 3050 mtx_unlock(&lun->lun_lock); 3051 break; 3052 } 3053 case CTL_ERROR_INJECT_DELETE: { 3054 struct ctl_error_desc *delete_desc, *desc, *desc2; 3055 struct ctl_lun *lun; 3056 int delete_done; 3057 3058 delete_desc = (struct ctl_error_desc *)addr; 3059 delete_done = 0; 3060 3061 mtx_lock(&softc->ctl_lock); 3062 lun = softc->ctl_luns[delete_desc->lun_id]; 3063 if (lun == NULL) { 3064 mtx_unlock(&softc->ctl_lock); 3065 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 3066 __func__, (uintmax_t)delete_desc->lun_id); 3067 retval = EINVAL; 3068 break; 3069 } 3070 mtx_lock(&lun->lun_lock); 3071 mtx_unlock(&softc->ctl_lock); 3072 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 3073 if (desc->serial != delete_desc->serial) 3074 continue; 3075 3076 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 3077 links); 3078 free(desc, M_CTL); 3079 delete_done = 1; 3080 } 3081 mtx_unlock(&lun->lun_lock); 3082 if (delete_done == 0) { 3083 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 3084 "error serial %ju on LUN %u\n", __func__, 3085 delete_desc->serial, delete_desc->lun_id); 3086 retval = EINVAL; 3087 break; 3088 } 3089 break; 3090 } 3091 case CTL_DUMP_STRUCTS: { 3092 int i, j, k; 3093 struct ctl_port *port; 3094 struct ctl_frontend *fe; 3095 3096 mtx_lock(&softc->ctl_lock); 3097 printf("CTL Persistent Reservation information start:\n"); 3098 for (i = 0; i < CTL_MAX_LUNS; i++) { 3099 struct ctl_lun *lun; 3100 3101 lun = softc->ctl_luns[i]; 3102 3103 if ((lun == NULL) 3104 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 3105 continue; 3106 3107 for (j = 0; j < (CTL_MAX_PORTS * 2); j++) { 3108 if (lun->pr_keys[j] == NULL) 3109 continue; 3110 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 3111 if (lun->pr_keys[j][k] == 0) 3112 continue; 3113 printf(" LUN %d port %d iid %d key " 3114 "%#jx\n", i, j, k, 3115 (uintmax_t)lun->pr_keys[j][k]); 3116 } 3117 } 3118 } 3119 printf("CTL Persistent Reservation information end\n"); 3120 printf("CTL Ports:\n"); 3121 STAILQ_FOREACH(port, &softc->port_list, links) { 3122 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 3123 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 3124 port->frontend->name, port->port_type, 3125 port->physical_port, port->virtual_port, 3126 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 3127 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3128 if (port->wwpn_iid[j].in_use == 0 && 3129 port->wwpn_iid[j].wwpn == 0 && 3130 port->wwpn_iid[j].name == NULL) 3131 continue; 3132 3133 printf(" iid %u use %d WWPN %#jx '%s'\n", 3134 j, port->wwpn_iid[j].in_use, 3135 (uintmax_t)port->wwpn_iid[j].wwpn, 3136 port->wwpn_iid[j].name); 3137 } 3138 } 3139 printf("CTL Port information end\n"); 3140 mtx_unlock(&softc->ctl_lock); 3141 /* 3142 * XXX KDM calling this without a lock. We'd likely want 3143 * to drop the lock before calling the frontend's dump 3144 * routine anyway. 3145 */ 3146 printf("CTL Frontends:\n"); 3147 STAILQ_FOREACH(fe, &softc->fe_list, links) { 3148 printf(" Frontend '%s'\n", fe->name); 3149 if (fe->fe_dump != NULL) 3150 fe->fe_dump(); 3151 } 3152 printf("CTL Frontend information end\n"); 3153 break; 3154 } 3155 case CTL_LUN_REQ: { 3156 struct ctl_lun_req *lun_req; 3157 struct ctl_backend_driver *backend; 3158 3159 lun_req = (struct ctl_lun_req *)addr; 3160 3161 backend = ctl_backend_find(lun_req->backend); 3162 if (backend == NULL) { 3163 lun_req->status = CTL_LUN_ERROR; 3164 snprintf(lun_req->error_str, 3165 sizeof(lun_req->error_str), 3166 "Backend \"%s\" not found.", 3167 lun_req->backend); 3168 break; 3169 } 3170 if (lun_req->num_be_args > 0) { 3171 lun_req->kern_be_args = ctl_copyin_args( 3172 lun_req->num_be_args, 3173 lun_req->be_args, 3174 lun_req->error_str, 3175 sizeof(lun_req->error_str)); 3176 if (lun_req->kern_be_args == NULL) { 3177 lun_req->status = CTL_LUN_ERROR; 3178 break; 3179 } 3180 } 3181 3182 retval = backend->ioctl(dev, cmd, addr, flag, td); 3183 3184 if (lun_req->num_be_args > 0) { 3185 ctl_copyout_args(lun_req->num_be_args, 3186 lun_req->kern_be_args); 3187 ctl_free_args(lun_req->num_be_args, 3188 lun_req->kern_be_args); 3189 } 3190 break; 3191 } 3192 case CTL_LUN_LIST: { 3193 struct sbuf *sb; 3194 struct ctl_lun *lun; 3195 struct ctl_lun_list *list; 3196 struct ctl_option *opt; 3197 3198 list = (struct ctl_lun_list *)addr; 3199 3200 /* 3201 * Allocate a fixed length sbuf here, based on the length 3202 * of the user's buffer. We could allocate an auto-extending 3203 * buffer, and then tell the user how much larger our 3204 * amount of data is than his buffer, but that presents 3205 * some problems: 3206 * 3207 * 1. The sbuf(9) routines use a blocking malloc, and so 3208 * we can't hold a lock while calling them with an 3209 * auto-extending buffer. 3210 * 3211 * 2. There is not currently a LUN reference counting 3212 * mechanism, outside of outstanding transactions on 3213 * the LUN's OOA queue. So a LUN could go away on us 3214 * while we're getting the LUN number, backend-specific 3215 * information, etc. Thus, given the way things 3216 * currently work, we need to hold the CTL lock while 3217 * grabbing LUN information. 3218 * 3219 * So, from the user's standpoint, the best thing to do is 3220 * allocate what he thinks is a reasonable buffer length, 3221 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3222 * double the buffer length and try again. (And repeat 3223 * that until he succeeds.) 3224 */ 3225 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3226 if (sb == NULL) { 3227 list->status = CTL_LUN_LIST_ERROR; 3228 snprintf(list->error_str, sizeof(list->error_str), 3229 "Unable to allocate %d bytes for LUN list", 3230 list->alloc_len); 3231 break; 3232 } 3233 3234 sbuf_printf(sb, "<ctllunlist>\n"); 3235 3236 mtx_lock(&softc->ctl_lock); 3237 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3238 mtx_lock(&lun->lun_lock); 3239 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3240 (uintmax_t)lun->lun); 3241 3242 /* 3243 * Bail out as soon as we see that we've overfilled 3244 * the buffer. 3245 */ 3246 if (retval != 0) 3247 break; 3248 3249 retval = sbuf_printf(sb, "\t<backend_type>%s" 3250 "</backend_type>\n", 3251 (lun->backend == NULL) ? "none" : 3252 lun->backend->name); 3253 3254 if (retval != 0) 3255 break; 3256 3257 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3258 lun->be_lun->lun_type); 3259 3260 if (retval != 0) 3261 break; 3262 3263 if (lun->backend == NULL) { 3264 retval = sbuf_printf(sb, "</lun>\n"); 3265 if (retval != 0) 3266 break; 3267 continue; 3268 } 3269 3270 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3271 (lun->be_lun->maxlba > 0) ? 3272 lun->be_lun->maxlba + 1 : 0); 3273 3274 if (retval != 0) 3275 break; 3276 3277 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3278 lun->be_lun->blocksize); 3279 3280 if (retval != 0) 3281 break; 3282 3283 retval = sbuf_printf(sb, "\t<serial_number>"); 3284 3285 if (retval != 0) 3286 break; 3287 3288 retval = ctl_sbuf_printf_esc(sb, 3289 lun->be_lun->serial_num, 3290 sizeof(lun->be_lun->serial_num)); 3291 3292 if (retval != 0) 3293 break; 3294 3295 retval = sbuf_printf(sb, "</serial_number>\n"); 3296 3297 if (retval != 0) 3298 break; 3299 3300 retval = sbuf_printf(sb, "\t<device_id>"); 3301 3302 if (retval != 0) 3303 break; 3304 3305 retval = ctl_sbuf_printf_esc(sb, 3306 lun->be_lun->device_id, 3307 sizeof(lun->be_lun->device_id)); 3308 3309 if (retval != 0) 3310 break; 3311 3312 retval = sbuf_printf(sb, "</device_id>\n"); 3313 3314 if (retval != 0) 3315 break; 3316 3317 if (lun->backend->lun_info != NULL) { 3318 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3319 if (retval != 0) 3320 break; 3321 } 3322 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3323 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3324 opt->name, opt->value, opt->name); 3325 if (retval != 0) 3326 break; 3327 } 3328 3329 retval = sbuf_printf(sb, "</lun>\n"); 3330 3331 if (retval != 0) 3332 break; 3333 mtx_unlock(&lun->lun_lock); 3334 } 3335 if (lun != NULL) 3336 mtx_unlock(&lun->lun_lock); 3337 mtx_unlock(&softc->ctl_lock); 3338 3339 if ((retval != 0) 3340 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3341 retval = 0; 3342 sbuf_delete(sb); 3343 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3344 snprintf(list->error_str, sizeof(list->error_str), 3345 "Out of space, %d bytes is too small", 3346 list->alloc_len); 3347 break; 3348 } 3349 3350 sbuf_finish(sb); 3351 3352 retval = copyout(sbuf_data(sb), list->lun_xml, 3353 sbuf_len(sb) + 1); 3354 3355 list->fill_len = sbuf_len(sb) + 1; 3356 list->status = CTL_LUN_LIST_OK; 3357 sbuf_delete(sb); 3358 break; 3359 } 3360 case CTL_ISCSI: { 3361 struct ctl_iscsi *ci; 3362 struct ctl_frontend *fe; 3363 3364 ci = (struct ctl_iscsi *)addr; 3365 3366 fe = ctl_frontend_find("iscsi"); 3367 if (fe == NULL) { 3368 ci->status = CTL_ISCSI_ERROR; 3369 snprintf(ci->error_str, sizeof(ci->error_str), 3370 "Frontend \"iscsi\" not found."); 3371 break; 3372 } 3373 3374 retval = fe->ioctl(dev, cmd, addr, flag, td); 3375 break; 3376 } 3377 case CTL_PORT_REQ: { 3378 struct ctl_req *req; 3379 struct ctl_frontend *fe; 3380 3381 req = (struct ctl_req *)addr; 3382 3383 fe = ctl_frontend_find(req->driver); 3384 if (fe == NULL) { 3385 req->status = CTL_LUN_ERROR; 3386 snprintf(req->error_str, sizeof(req->error_str), 3387 "Frontend \"%s\" not found.", req->driver); 3388 break; 3389 } 3390 if (req->num_args > 0) { 3391 req->kern_args = ctl_copyin_args(req->num_args, 3392 req->args, req->error_str, sizeof(req->error_str)); 3393 if (req->kern_args == NULL) { 3394 req->status = CTL_LUN_ERROR; 3395 break; 3396 } 3397 } 3398 3399 retval = fe->ioctl(dev, cmd, addr, flag, td); 3400 3401 if (req->num_args > 0) { 3402 ctl_copyout_args(req->num_args, req->kern_args); 3403 ctl_free_args(req->num_args, req->kern_args); 3404 } 3405 break; 3406 } 3407 case CTL_PORT_LIST: { 3408 struct sbuf *sb; 3409 struct ctl_port *port; 3410 struct ctl_lun_list *list; 3411 struct ctl_option *opt; 3412 int j; 3413 3414 list = (struct ctl_lun_list *)addr; 3415 3416 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3417 if (sb == NULL) { 3418 list->status = CTL_LUN_LIST_ERROR; 3419 snprintf(list->error_str, sizeof(list->error_str), 3420 "Unable to allocate %d bytes for LUN list", 3421 list->alloc_len); 3422 break; 3423 } 3424 3425 sbuf_printf(sb, "<ctlportlist>\n"); 3426 3427 mtx_lock(&softc->ctl_lock); 3428 STAILQ_FOREACH(port, &softc->port_list, links) { 3429 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3430 (uintmax_t)port->targ_port); 3431 3432 /* 3433 * Bail out as soon as we see that we've overfilled 3434 * the buffer. 3435 */ 3436 if (retval != 0) 3437 break; 3438 3439 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3440 "</frontend_type>\n", port->frontend->name); 3441 if (retval != 0) 3442 break; 3443 3444 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3445 port->port_type); 3446 if (retval != 0) 3447 break; 3448 3449 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3450 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3451 if (retval != 0) 3452 break; 3453 3454 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3455 port->port_name); 3456 if (retval != 0) 3457 break; 3458 3459 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3460 port->physical_port); 3461 if (retval != 0) 3462 break; 3463 3464 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3465 port->virtual_port); 3466 if (retval != 0) 3467 break; 3468 3469 if (port->target_devid != NULL) { 3470 sbuf_printf(sb, "\t<target>"); 3471 ctl_id_sbuf(port->target_devid, sb); 3472 sbuf_printf(sb, "</target>\n"); 3473 } 3474 3475 if (port->port_devid != NULL) { 3476 sbuf_printf(sb, "\t<port>"); 3477 ctl_id_sbuf(port->port_devid, sb); 3478 sbuf_printf(sb, "</port>\n"); 3479 } 3480 3481 if (port->port_info != NULL) { 3482 retval = port->port_info(port->onoff_arg, sb); 3483 if (retval != 0) 3484 break; 3485 } 3486 STAILQ_FOREACH(opt, &port->options, links) { 3487 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3488 opt->name, opt->value, opt->name); 3489 if (retval != 0) 3490 break; 3491 } 3492 3493 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3494 if (port->wwpn_iid[j].in_use == 0 || 3495 (port->wwpn_iid[j].wwpn == 0 && 3496 port->wwpn_iid[j].name == NULL)) 3497 continue; 3498 3499 if (port->wwpn_iid[j].name != NULL) 3500 retval = sbuf_printf(sb, 3501 "\t<initiator>%u %s</initiator>\n", 3502 j, port->wwpn_iid[j].name); 3503 else 3504 retval = sbuf_printf(sb, 3505 "\t<initiator>%u naa.%08jx</initiator>\n", 3506 j, port->wwpn_iid[j].wwpn); 3507 if (retval != 0) 3508 break; 3509 } 3510 if (retval != 0) 3511 break; 3512 3513 retval = sbuf_printf(sb, "</targ_port>\n"); 3514 if (retval != 0) 3515 break; 3516 } 3517 mtx_unlock(&softc->ctl_lock); 3518 3519 if ((retval != 0) 3520 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3521 retval = 0; 3522 sbuf_delete(sb); 3523 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3524 snprintf(list->error_str, sizeof(list->error_str), 3525 "Out of space, %d bytes is too small", 3526 list->alloc_len); 3527 break; 3528 } 3529 3530 sbuf_finish(sb); 3531 3532 retval = copyout(sbuf_data(sb), list->lun_xml, 3533 sbuf_len(sb) + 1); 3534 3535 list->fill_len = sbuf_len(sb) + 1; 3536 list->status = CTL_LUN_LIST_OK; 3537 sbuf_delete(sb); 3538 break; 3539 } 3540 default: { 3541 /* XXX KDM should we fix this? */ 3542 #if 0 3543 struct ctl_backend_driver *backend; 3544 unsigned int type; 3545 int found; 3546 3547 found = 0; 3548 3549 /* 3550 * We encode the backend type as the ioctl type for backend 3551 * ioctls. So parse it out here, and then search for a 3552 * backend of this type. 3553 */ 3554 type = _IOC_TYPE(cmd); 3555 3556 STAILQ_FOREACH(backend, &softc->be_list, links) { 3557 if (backend->type == type) { 3558 found = 1; 3559 break; 3560 } 3561 } 3562 if (found == 0) { 3563 printf("ctl: unknown ioctl command %#lx or backend " 3564 "%d\n", cmd, type); 3565 retval = EINVAL; 3566 break; 3567 } 3568 retval = backend->ioctl(dev, cmd, addr, flag, td); 3569 #endif 3570 retval = ENOTTY; 3571 break; 3572 } 3573 } 3574 return (retval); 3575 } 3576 3577 uint32_t 3578 ctl_get_initindex(struct ctl_nexus *nexus) 3579 { 3580 if (nexus->targ_port < CTL_MAX_PORTS) 3581 return (nexus->initid.id + 3582 (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3583 else 3584 return (nexus->initid.id + 3585 ((nexus->targ_port - CTL_MAX_PORTS) * 3586 CTL_MAX_INIT_PER_PORT)); 3587 } 3588 3589 uint32_t 3590 ctl_get_resindex(struct ctl_nexus *nexus) 3591 { 3592 return (nexus->initid.id + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3593 } 3594 3595 uint32_t 3596 ctl_port_idx(int port_num) 3597 { 3598 if (port_num < CTL_MAX_PORTS) 3599 return(port_num); 3600 else 3601 return(port_num - CTL_MAX_PORTS); 3602 } 3603 3604 static uint32_t 3605 ctl_map_lun(int port_num, uint32_t lun_id) 3606 { 3607 struct ctl_port *port; 3608 3609 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3610 if (port == NULL) 3611 return (UINT32_MAX); 3612 if (port->lun_map == NULL) 3613 return (lun_id); 3614 return (port->lun_map(port->targ_lun_arg, lun_id)); 3615 } 3616 3617 static uint32_t 3618 ctl_map_lun_back(int port_num, uint32_t lun_id) 3619 { 3620 struct ctl_port *port; 3621 uint32_t i; 3622 3623 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3624 if (port->lun_map == NULL) 3625 return (lun_id); 3626 for (i = 0; i < CTL_MAX_LUNS; i++) { 3627 if (port->lun_map(port->targ_lun_arg, i) == lun_id) 3628 return (i); 3629 } 3630 return (UINT32_MAX); 3631 } 3632 3633 /* 3634 * Note: This only works for bitmask sizes that are at least 32 bits, and 3635 * that are a power of 2. 3636 */ 3637 int 3638 ctl_ffz(uint32_t *mask, uint32_t size) 3639 { 3640 uint32_t num_chunks, num_pieces; 3641 int i, j; 3642 3643 num_chunks = (size >> 5); 3644 if (num_chunks == 0) 3645 num_chunks++; 3646 num_pieces = ctl_min((sizeof(uint32_t) * 8), size); 3647 3648 for (i = 0; i < num_chunks; i++) { 3649 for (j = 0; j < num_pieces; j++) { 3650 if ((mask[i] & (1 << j)) == 0) 3651 return ((i << 5) + j); 3652 } 3653 } 3654 3655 return (-1); 3656 } 3657 3658 int 3659 ctl_set_mask(uint32_t *mask, uint32_t bit) 3660 { 3661 uint32_t chunk, piece; 3662 3663 chunk = bit >> 5; 3664 piece = bit % (sizeof(uint32_t) * 8); 3665 3666 if ((mask[chunk] & (1 << piece)) != 0) 3667 return (-1); 3668 else 3669 mask[chunk] |= (1 << piece); 3670 3671 return (0); 3672 } 3673 3674 int 3675 ctl_clear_mask(uint32_t *mask, uint32_t bit) 3676 { 3677 uint32_t chunk, piece; 3678 3679 chunk = bit >> 5; 3680 piece = bit % (sizeof(uint32_t) * 8); 3681 3682 if ((mask[chunk] & (1 << piece)) == 0) 3683 return (-1); 3684 else 3685 mask[chunk] &= ~(1 << piece); 3686 3687 return (0); 3688 } 3689 3690 int 3691 ctl_is_set(uint32_t *mask, uint32_t bit) 3692 { 3693 uint32_t chunk, piece; 3694 3695 chunk = bit >> 5; 3696 piece = bit % (sizeof(uint32_t) * 8); 3697 3698 if ((mask[chunk] & (1 << piece)) == 0) 3699 return (0); 3700 else 3701 return (1); 3702 } 3703 3704 static uint64_t 3705 ctl_get_prkey(struct ctl_lun *lun, uint32_t residx) 3706 { 3707 uint64_t *t; 3708 3709 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3710 if (t == NULL) 3711 return (0); 3712 return (t[residx % CTL_MAX_INIT_PER_PORT]); 3713 } 3714 3715 static void 3716 ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx) 3717 { 3718 uint64_t *t; 3719 3720 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3721 if (t == NULL) 3722 return; 3723 t[residx % CTL_MAX_INIT_PER_PORT] = 0; 3724 } 3725 3726 static void 3727 ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx) 3728 { 3729 uint64_t *p; 3730 u_int i; 3731 3732 i = residx/CTL_MAX_INIT_PER_PORT; 3733 if (lun->pr_keys[i] != NULL) 3734 return; 3735 mtx_unlock(&lun->lun_lock); 3736 p = malloc(sizeof(uint64_t) * CTL_MAX_INIT_PER_PORT, M_CTL, 3737 M_WAITOK | M_ZERO); 3738 mtx_lock(&lun->lun_lock); 3739 if (lun->pr_keys[i] == NULL) 3740 lun->pr_keys[i] = p; 3741 else 3742 free(p, M_CTL); 3743 } 3744 3745 static void 3746 ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key) 3747 { 3748 uint64_t *t; 3749 3750 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3751 KASSERT(t != NULL, ("prkey %d is not allocated", residx)); 3752 t[residx % CTL_MAX_INIT_PER_PORT] = key; 3753 } 3754 3755 /* 3756 * ctl_softc, pool_name, total_ctl_io are passed in. 3757 * npool is passed out. 3758 */ 3759 int 3760 ctl_pool_create(struct ctl_softc *ctl_softc, const char *pool_name, 3761 uint32_t total_ctl_io, void **npool) 3762 { 3763 #ifdef IO_POOLS 3764 struct ctl_io_pool *pool; 3765 3766 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3767 M_NOWAIT | M_ZERO); 3768 if (pool == NULL) 3769 return (ENOMEM); 3770 3771 snprintf(pool->name, sizeof(pool->name), "CTL IO %s", pool_name); 3772 pool->ctl_softc = ctl_softc; 3773 pool->zone = uma_zsecond_create(pool->name, NULL, 3774 NULL, NULL, NULL, ctl_softc->io_zone); 3775 /* uma_prealloc(pool->zone, total_ctl_io); */ 3776 3777 *npool = pool; 3778 #else 3779 *npool = ctl_softc->io_zone; 3780 #endif 3781 return (0); 3782 } 3783 3784 void 3785 ctl_pool_free(struct ctl_io_pool *pool) 3786 { 3787 3788 if (pool == NULL) 3789 return; 3790 3791 #ifdef IO_POOLS 3792 uma_zdestroy(pool->zone); 3793 free(pool, M_CTL); 3794 #endif 3795 } 3796 3797 union ctl_io * 3798 ctl_alloc_io(void *pool_ref) 3799 { 3800 union ctl_io *io; 3801 #ifdef IO_POOLS 3802 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3803 3804 io = uma_zalloc(pool->zone, M_WAITOK); 3805 #else 3806 io = uma_zalloc((uma_zone_t)pool_ref, M_WAITOK); 3807 #endif 3808 if (io != NULL) 3809 io->io_hdr.pool = pool_ref; 3810 return (io); 3811 } 3812 3813 union ctl_io * 3814 ctl_alloc_io_nowait(void *pool_ref) 3815 { 3816 union ctl_io *io; 3817 #ifdef IO_POOLS 3818 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3819 3820 io = uma_zalloc(pool->zone, M_NOWAIT); 3821 #else 3822 io = uma_zalloc((uma_zone_t)pool_ref, M_NOWAIT); 3823 #endif 3824 if (io != NULL) 3825 io->io_hdr.pool = pool_ref; 3826 return (io); 3827 } 3828 3829 void 3830 ctl_free_io(union ctl_io *io) 3831 { 3832 #ifdef IO_POOLS 3833 struct ctl_io_pool *pool; 3834 #endif 3835 3836 if (io == NULL) 3837 return; 3838 3839 #ifdef IO_POOLS 3840 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3841 uma_zfree(pool->zone, io); 3842 #else 3843 uma_zfree((uma_zone_t)io->io_hdr.pool, io); 3844 #endif 3845 } 3846 3847 void 3848 ctl_zero_io(union ctl_io *io) 3849 { 3850 void *pool_ref; 3851 3852 if (io == NULL) 3853 return; 3854 3855 /* 3856 * May need to preserve linked list pointers at some point too. 3857 */ 3858 pool_ref = io->io_hdr.pool; 3859 memset(io, 0, sizeof(*io)); 3860 io->io_hdr.pool = pool_ref; 3861 } 3862 3863 /* 3864 * This routine is currently used for internal copies of ctl_ios that need 3865 * to persist for some reason after we've already returned status to the 3866 * FETD. (Thus the flag set.) 3867 * 3868 * XXX XXX 3869 * Note that this makes a blind copy of all fields in the ctl_io, except 3870 * for the pool reference. This includes any memory that has been 3871 * allocated! That memory will no longer be valid after done has been 3872 * called, so this would be VERY DANGEROUS for command that actually does 3873 * any reads or writes. Right now (11/7/2005), this is only used for immediate 3874 * start and stop commands, which don't transfer any data, so this is not a 3875 * problem. If it is used for anything else, the caller would also need to 3876 * allocate data buffer space and this routine would need to be modified to 3877 * copy the data buffer(s) as well. 3878 */ 3879 void 3880 ctl_copy_io(union ctl_io *src, union ctl_io *dest) 3881 { 3882 void *pool_ref; 3883 3884 if ((src == NULL) 3885 || (dest == NULL)) 3886 return; 3887 3888 /* 3889 * May need to preserve linked list pointers at some point too. 3890 */ 3891 pool_ref = dest->io_hdr.pool; 3892 3893 memcpy(dest, src, ctl_min(sizeof(*src), sizeof(*dest))); 3894 3895 dest->io_hdr.pool = pool_ref; 3896 /* 3897 * We need to know that this is an internal copy, and doesn't need 3898 * to get passed back to the FETD that allocated it. 3899 */ 3900 dest->io_hdr.flags |= CTL_FLAG_INT_COPY; 3901 } 3902 3903 static int 3904 ctl_expand_number(const char *buf, uint64_t *num) 3905 { 3906 char *endptr; 3907 uint64_t number; 3908 unsigned shift; 3909 3910 number = strtoq(buf, &endptr, 0); 3911 3912 switch (tolower((unsigned char)*endptr)) { 3913 case 'e': 3914 shift = 60; 3915 break; 3916 case 'p': 3917 shift = 50; 3918 break; 3919 case 't': 3920 shift = 40; 3921 break; 3922 case 'g': 3923 shift = 30; 3924 break; 3925 case 'm': 3926 shift = 20; 3927 break; 3928 case 'k': 3929 shift = 10; 3930 break; 3931 case 'b': 3932 case '\0': /* No unit. */ 3933 *num = number; 3934 return (0); 3935 default: 3936 /* Unrecognized unit. */ 3937 return (-1); 3938 } 3939 3940 if ((number << shift) >> shift != number) { 3941 /* Overflow */ 3942 return (-1); 3943 } 3944 *num = number << shift; 3945 return (0); 3946 } 3947 3948 3949 /* 3950 * This routine could be used in the future to load default and/or saved 3951 * mode page parameters for a particuar lun. 3952 */ 3953 static int 3954 ctl_init_page_index(struct ctl_lun *lun) 3955 { 3956 int i; 3957 struct ctl_page_index *page_index; 3958 const char *value; 3959 uint64_t ival; 3960 3961 memcpy(&lun->mode_pages.index, page_index_template, 3962 sizeof(page_index_template)); 3963 3964 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 3965 3966 page_index = &lun->mode_pages.index[i]; 3967 /* 3968 * If this is a disk-only mode page, there's no point in 3969 * setting it up. For some pages, we have to have some 3970 * basic information about the disk in order to calculate the 3971 * mode page data. 3972 */ 3973 if ((lun->be_lun->lun_type != T_DIRECT) 3974 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 3975 continue; 3976 3977 switch (page_index->page_code & SMPH_PC_MASK) { 3978 case SMS_RW_ERROR_RECOVERY_PAGE: { 3979 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 3980 panic("subpage is incorrect!"); 3981 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT], 3982 &rw_er_page_default, 3983 sizeof(rw_er_page_default)); 3984 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CHANGEABLE], 3985 &rw_er_page_changeable, 3986 sizeof(rw_er_page_changeable)); 3987 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_DEFAULT], 3988 &rw_er_page_default, 3989 sizeof(rw_er_page_default)); 3990 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_SAVED], 3991 &rw_er_page_default, 3992 sizeof(rw_er_page_default)); 3993 page_index->page_data = 3994 (uint8_t *)lun->mode_pages.rw_er_page; 3995 break; 3996 } 3997 case SMS_FORMAT_DEVICE_PAGE: { 3998 struct scsi_format_page *format_page; 3999 4000 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4001 panic("subpage is incorrect!"); 4002 4003 /* 4004 * Sectors per track are set above. Bytes per 4005 * sector need to be set here on a per-LUN basis. 4006 */ 4007 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 4008 &format_page_default, 4009 sizeof(format_page_default)); 4010 memcpy(&lun->mode_pages.format_page[ 4011 CTL_PAGE_CHANGEABLE], &format_page_changeable, 4012 sizeof(format_page_changeable)); 4013 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 4014 &format_page_default, 4015 sizeof(format_page_default)); 4016 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 4017 &format_page_default, 4018 sizeof(format_page_default)); 4019 4020 format_page = &lun->mode_pages.format_page[ 4021 CTL_PAGE_CURRENT]; 4022 scsi_ulto2b(lun->be_lun->blocksize, 4023 format_page->bytes_per_sector); 4024 4025 format_page = &lun->mode_pages.format_page[ 4026 CTL_PAGE_DEFAULT]; 4027 scsi_ulto2b(lun->be_lun->blocksize, 4028 format_page->bytes_per_sector); 4029 4030 format_page = &lun->mode_pages.format_page[ 4031 CTL_PAGE_SAVED]; 4032 scsi_ulto2b(lun->be_lun->blocksize, 4033 format_page->bytes_per_sector); 4034 4035 page_index->page_data = 4036 (uint8_t *)lun->mode_pages.format_page; 4037 break; 4038 } 4039 case SMS_RIGID_DISK_PAGE: { 4040 struct scsi_rigid_disk_page *rigid_disk_page; 4041 uint32_t sectors_per_cylinder; 4042 uint64_t cylinders; 4043 #ifndef __XSCALE__ 4044 int shift; 4045 #endif /* !__XSCALE__ */ 4046 4047 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4048 panic("invalid subpage value %d", 4049 page_index->subpage); 4050 4051 /* 4052 * Rotation rate and sectors per track are set 4053 * above. We calculate the cylinders here based on 4054 * capacity. Due to the number of heads and 4055 * sectors per track we're using, smaller arrays 4056 * may turn out to have 0 cylinders. Linux and 4057 * FreeBSD don't pay attention to these mode pages 4058 * to figure out capacity, but Solaris does. It 4059 * seems to deal with 0 cylinders just fine, and 4060 * works out a fake geometry based on the capacity. 4061 */ 4062 memcpy(&lun->mode_pages.rigid_disk_page[ 4063 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 4064 sizeof(rigid_disk_page_default)); 4065 memcpy(&lun->mode_pages.rigid_disk_page[ 4066 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4067 sizeof(rigid_disk_page_changeable)); 4068 4069 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4070 CTL_DEFAULT_HEADS; 4071 4072 /* 4073 * The divide method here will be more accurate, 4074 * probably, but results in floating point being 4075 * used in the kernel on i386 (__udivdi3()). On the 4076 * XScale, though, __udivdi3() is implemented in 4077 * software. 4078 * 4079 * The shift method for cylinder calculation is 4080 * accurate if sectors_per_cylinder is a power of 4081 * 2. Otherwise it might be slightly off -- you 4082 * might have a bit of a truncation problem. 4083 */ 4084 #ifdef __XSCALE__ 4085 cylinders = (lun->be_lun->maxlba + 1) / 4086 sectors_per_cylinder; 4087 #else 4088 for (shift = 31; shift > 0; shift--) { 4089 if (sectors_per_cylinder & (1 << shift)) 4090 break; 4091 } 4092 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4093 #endif 4094 4095 /* 4096 * We've basically got 3 bytes, or 24 bits for the 4097 * cylinder size in the mode page. If we're over, 4098 * just round down to 2^24. 4099 */ 4100 if (cylinders > 0xffffff) 4101 cylinders = 0xffffff; 4102 4103 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4104 CTL_PAGE_DEFAULT]; 4105 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4106 4107 if ((value = ctl_get_opt(&lun->be_lun->options, 4108 "rpm")) != NULL) { 4109 scsi_ulto2b(strtol(value, NULL, 0), 4110 rigid_disk_page->rotation_rate); 4111 } 4112 4113 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_CURRENT], 4114 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4115 sizeof(rigid_disk_page_default)); 4116 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_SAVED], 4117 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4118 sizeof(rigid_disk_page_default)); 4119 4120 page_index->page_data = 4121 (uint8_t *)lun->mode_pages.rigid_disk_page; 4122 break; 4123 } 4124 case SMS_CACHING_PAGE: { 4125 struct scsi_caching_page *caching_page; 4126 4127 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4128 panic("invalid subpage value %d", 4129 page_index->subpage); 4130 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4131 &caching_page_default, 4132 sizeof(caching_page_default)); 4133 memcpy(&lun->mode_pages.caching_page[ 4134 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4135 sizeof(caching_page_changeable)); 4136 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4137 &caching_page_default, 4138 sizeof(caching_page_default)); 4139 caching_page = &lun->mode_pages.caching_page[ 4140 CTL_PAGE_SAVED]; 4141 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4142 if (value != NULL && strcmp(value, "off") == 0) 4143 caching_page->flags1 &= ~SCP_WCE; 4144 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4145 if (value != NULL && strcmp(value, "off") == 0) 4146 caching_page->flags1 |= SCP_RCD; 4147 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4148 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4149 sizeof(caching_page_default)); 4150 page_index->page_data = 4151 (uint8_t *)lun->mode_pages.caching_page; 4152 break; 4153 } 4154 case SMS_CONTROL_MODE_PAGE: { 4155 struct scsi_control_page *control_page; 4156 4157 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4158 panic("invalid subpage value %d", 4159 page_index->subpage); 4160 4161 memcpy(&lun->mode_pages.control_page[CTL_PAGE_DEFAULT], 4162 &control_page_default, 4163 sizeof(control_page_default)); 4164 memcpy(&lun->mode_pages.control_page[ 4165 CTL_PAGE_CHANGEABLE], &control_page_changeable, 4166 sizeof(control_page_changeable)); 4167 memcpy(&lun->mode_pages.control_page[CTL_PAGE_SAVED], 4168 &control_page_default, 4169 sizeof(control_page_default)); 4170 control_page = &lun->mode_pages.control_page[ 4171 CTL_PAGE_SAVED]; 4172 value = ctl_get_opt(&lun->be_lun->options, "reordering"); 4173 if (value != NULL && strcmp(value, "unrestricted") == 0) { 4174 control_page->queue_flags &= ~SCP_QUEUE_ALG_MASK; 4175 control_page->queue_flags |= SCP_QUEUE_ALG_UNRESTRICTED; 4176 } 4177 memcpy(&lun->mode_pages.control_page[CTL_PAGE_CURRENT], 4178 &lun->mode_pages.control_page[CTL_PAGE_SAVED], 4179 sizeof(control_page_default)); 4180 page_index->page_data = 4181 (uint8_t *)lun->mode_pages.control_page; 4182 break; 4183 4184 } 4185 case SMS_INFO_EXCEPTIONS_PAGE: { 4186 switch (page_index->subpage) { 4187 case SMS_SUBPAGE_PAGE_0: 4188 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_CURRENT], 4189 &ie_page_default, 4190 sizeof(ie_page_default)); 4191 memcpy(&lun->mode_pages.ie_page[ 4192 CTL_PAGE_CHANGEABLE], &ie_page_changeable, 4193 sizeof(ie_page_changeable)); 4194 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_DEFAULT], 4195 &ie_page_default, 4196 sizeof(ie_page_default)); 4197 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_SAVED], 4198 &ie_page_default, 4199 sizeof(ie_page_default)); 4200 page_index->page_data = 4201 (uint8_t *)lun->mode_pages.ie_page; 4202 break; 4203 case 0x02: { 4204 struct ctl_logical_block_provisioning_page *page; 4205 4206 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_DEFAULT], 4207 &lbp_page_default, 4208 sizeof(lbp_page_default)); 4209 memcpy(&lun->mode_pages.lbp_page[ 4210 CTL_PAGE_CHANGEABLE], &lbp_page_changeable, 4211 sizeof(lbp_page_changeable)); 4212 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4213 &lbp_page_default, 4214 sizeof(lbp_page_default)); 4215 page = &lun->mode_pages.lbp_page[CTL_PAGE_SAVED]; 4216 value = ctl_get_opt(&lun->be_lun->options, 4217 "avail-threshold"); 4218 if (value != NULL && 4219 ctl_expand_number(value, &ival) == 0) { 4220 page->descr[0].flags |= SLBPPD_ENABLED | 4221 SLBPPD_ARMING_DEC; 4222 if (lun->be_lun->blocksize) 4223 ival /= lun->be_lun->blocksize; 4224 else 4225 ival /= 512; 4226 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4227 page->descr[0].count); 4228 } 4229 value = ctl_get_opt(&lun->be_lun->options, 4230 "used-threshold"); 4231 if (value != NULL && 4232 ctl_expand_number(value, &ival) == 0) { 4233 page->descr[1].flags |= SLBPPD_ENABLED | 4234 SLBPPD_ARMING_INC; 4235 if (lun->be_lun->blocksize) 4236 ival /= lun->be_lun->blocksize; 4237 else 4238 ival /= 512; 4239 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4240 page->descr[1].count); 4241 } 4242 value = ctl_get_opt(&lun->be_lun->options, 4243 "pool-avail-threshold"); 4244 if (value != NULL && 4245 ctl_expand_number(value, &ival) == 0) { 4246 page->descr[2].flags |= SLBPPD_ENABLED | 4247 SLBPPD_ARMING_DEC; 4248 if (lun->be_lun->blocksize) 4249 ival /= lun->be_lun->blocksize; 4250 else 4251 ival /= 512; 4252 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4253 page->descr[2].count); 4254 } 4255 value = ctl_get_opt(&lun->be_lun->options, 4256 "pool-used-threshold"); 4257 if (value != NULL && 4258 ctl_expand_number(value, &ival) == 0) { 4259 page->descr[3].flags |= SLBPPD_ENABLED | 4260 SLBPPD_ARMING_INC; 4261 if (lun->be_lun->blocksize) 4262 ival /= lun->be_lun->blocksize; 4263 else 4264 ival /= 512; 4265 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4266 page->descr[3].count); 4267 } 4268 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_CURRENT], 4269 &lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4270 sizeof(lbp_page_default)); 4271 page_index->page_data = 4272 (uint8_t *)lun->mode_pages.lbp_page; 4273 }} 4274 break; 4275 } 4276 case SMS_VENDOR_SPECIFIC_PAGE:{ 4277 switch (page_index->subpage) { 4278 case DBGCNF_SUBPAGE_CODE: { 4279 struct copan_debugconf_subpage *current_page, 4280 *saved_page; 4281 4282 memcpy(&lun->mode_pages.debugconf_subpage[ 4283 CTL_PAGE_CURRENT], 4284 &debugconf_page_default, 4285 sizeof(debugconf_page_default)); 4286 memcpy(&lun->mode_pages.debugconf_subpage[ 4287 CTL_PAGE_CHANGEABLE], 4288 &debugconf_page_changeable, 4289 sizeof(debugconf_page_changeable)); 4290 memcpy(&lun->mode_pages.debugconf_subpage[ 4291 CTL_PAGE_DEFAULT], 4292 &debugconf_page_default, 4293 sizeof(debugconf_page_default)); 4294 memcpy(&lun->mode_pages.debugconf_subpage[ 4295 CTL_PAGE_SAVED], 4296 &debugconf_page_default, 4297 sizeof(debugconf_page_default)); 4298 page_index->page_data = 4299 (uint8_t *)lun->mode_pages.debugconf_subpage; 4300 4301 current_page = (struct copan_debugconf_subpage *) 4302 (page_index->page_data + 4303 (page_index->page_len * 4304 CTL_PAGE_CURRENT)); 4305 saved_page = (struct copan_debugconf_subpage *) 4306 (page_index->page_data + 4307 (page_index->page_len * 4308 CTL_PAGE_SAVED)); 4309 break; 4310 } 4311 default: 4312 panic("invalid subpage value %d", 4313 page_index->subpage); 4314 break; 4315 } 4316 break; 4317 } 4318 default: 4319 panic("invalid page value %d", 4320 page_index->page_code & SMPH_PC_MASK); 4321 break; 4322 } 4323 } 4324 4325 return (CTL_RETVAL_COMPLETE); 4326 } 4327 4328 static int 4329 ctl_init_log_page_index(struct ctl_lun *lun) 4330 { 4331 struct ctl_page_index *page_index; 4332 int i, j, k, prev; 4333 4334 memcpy(&lun->log_pages.index, log_page_index_template, 4335 sizeof(log_page_index_template)); 4336 4337 prev = -1; 4338 for (i = 0, j = 0, k = 0; i < CTL_NUM_LOG_PAGES; i++) { 4339 4340 page_index = &lun->log_pages.index[i]; 4341 /* 4342 * If this is a disk-only mode page, there's no point in 4343 * setting it up. For some pages, we have to have some 4344 * basic information about the disk in order to calculate the 4345 * mode page data. 4346 */ 4347 if ((lun->be_lun->lun_type != T_DIRECT) 4348 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 4349 continue; 4350 4351 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING && 4352 lun->backend->lun_attr == NULL) 4353 continue; 4354 4355 if (page_index->page_code != prev) { 4356 lun->log_pages.pages_page[j] = page_index->page_code; 4357 prev = page_index->page_code; 4358 j++; 4359 } 4360 lun->log_pages.subpages_page[k*2] = page_index->page_code; 4361 lun->log_pages.subpages_page[k*2+1] = page_index->subpage; 4362 k++; 4363 } 4364 lun->log_pages.index[0].page_data = &lun->log_pages.pages_page[0]; 4365 lun->log_pages.index[0].page_len = j; 4366 lun->log_pages.index[1].page_data = &lun->log_pages.subpages_page[0]; 4367 lun->log_pages.index[1].page_len = k * 2; 4368 lun->log_pages.index[2].page_data = &lun->log_pages.lbp_page[0]; 4369 lun->log_pages.index[2].page_len = 12*CTL_NUM_LBP_PARAMS; 4370 4371 return (CTL_RETVAL_COMPLETE); 4372 } 4373 4374 static int 4375 hex2bin(const char *str, uint8_t *buf, int buf_size) 4376 { 4377 int i; 4378 u_char c; 4379 4380 memset(buf, 0, buf_size); 4381 while (isspace(str[0])) 4382 str++; 4383 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) 4384 str += 2; 4385 buf_size *= 2; 4386 for (i = 0; str[i] != 0 && i < buf_size; i++) { 4387 c = str[i]; 4388 if (isdigit(c)) 4389 c -= '0'; 4390 else if (isalpha(c)) 4391 c -= isupper(c) ? 'A' - 10 : 'a' - 10; 4392 else 4393 break; 4394 if (c >= 16) 4395 break; 4396 if ((i & 1) == 0) 4397 buf[i / 2] |= (c << 4); 4398 else 4399 buf[i / 2] |= c; 4400 } 4401 return ((i + 1) / 2); 4402 } 4403 4404 /* 4405 * LUN allocation. 4406 * 4407 * Requirements: 4408 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4409 * wants us to allocate the LUN and he can block. 4410 * - ctl_softc is always set 4411 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4412 * 4413 * Returns 0 for success, non-zero (errno) for failure. 4414 */ 4415 static int 4416 ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4417 struct ctl_be_lun *const be_lun, struct ctl_id target_id) 4418 { 4419 struct ctl_lun *nlun, *lun; 4420 struct ctl_port *port; 4421 struct scsi_vpd_id_descriptor *desc; 4422 struct scsi_vpd_id_t10 *t10id; 4423 const char *eui, *naa, *scsiname, *vendor, *value; 4424 int lun_number, i, lun_malloced; 4425 int devidlen, idlen1, idlen2 = 0, len; 4426 4427 if (be_lun == NULL) 4428 return (EINVAL); 4429 4430 /* 4431 * We currently only support Direct Access or Processor LUN types. 4432 */ 4433 switch (be_lun->lun_type) { 4434 case T_DIRECT: 4435 break; 4436 case T_PROCESSOR: 4437 break; 4438 case T_SEQUENTIAL: 4439 case T_CHANGER: 4440 default: 4441 be_lun->lun_config_status(be_lun->be_lun, 4442 CTL_LUN_CONFIG_FAILURE); 4443 break; 4444 } 4445 if (ctl_lun == NULL) { 4446 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4447 lun_malloced = 1; 4448 } else { 4449 lun_malloced = 0; 4450 lun = ctl_lun; 4451 } 4452 4453 memset(lun, 0, sizeof(*lun)); 4454 if (lun_malloced) 4455 lun->flags = CTL_LUN_MALLOCED; 4456 4457 /* Generate LUN ID. */ 4458 devidlen = max(CTL_DEVID_MIN_LEN, 4459 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4460 idlen1 = sizeof(*t10id) + devidlen; 4461 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4462 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4463 if (scsiname != NULL) { 4464 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4465 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4466 } 4467 eui = ctl_get_opt(&be_lun->options, "eui"); 4468 if (eui != NULL) { 4469 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4470 } 4471 naa = ctl_get_opt(&be_lun->options, "naa"); 4472 if (naa != NULL) { 4473 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4474 } 4475 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4476 M_CTL, M_WAITOK | M_ZERO); 4477 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4478 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4479 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4480 desc->length = idlen1; 4481 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4482 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4483 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4484 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4485 } else { 4486 strncpy(t10id->vendor, vendor, 4487 min(sizeof(t10id->vendor), strlen(vendor))); 4488 } 4489 strncpy((char *)t10id->vendor_spec_id, 4490 (char *)be_lun->device_id, devidlen); 4491 if (scsiname != NULL) { 4492 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4493 desc->length); 4494 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4495 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4496 SVPD_ID_TYPE_SCSI_NAME; 4497 desc->length = idlen2; 4498 strlcpy(desc->identifier, scsiname, idlen2); 4499 } 4500 if (eui != NULL) { 4501 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4502 desc->length); 4503 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4504 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4505 SVPD_ID_TYPE_EUI64; 4506 desc->length = hex2bin(eui, desc->identifier, 16); 4507 desc->length = desc->length > 12 ? 16 : 4508 (desc->length > 8 ? 12 : 8); 4509 len -= 16 - desc->length; 4510 } 4511 if (naa != NULL) { 4512 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4513 desc->length); 4514 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4515 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4516 SVPD_ID_TYPE_NAA; 4517 desc->length = hex2bin(naa, desc->identifier, 16); 4518 desc->length = desc->length > 8 ? 16 : 8; 4519 len -= 16 - desc->length; 4520 } 4521 lun->lun_devid->len = len; 4522 4523 mtx_lock(&ctl_softc->ctl_lock); 4524 /* 4525 * See if the caller requested a particular LUN number. If so, see 4526 * if it is available. Otherwise, allocate the first available LUN. 4527 */ 4528 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4529 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4530 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4531 mtx_unlock(&ctl_softc->ctl_lock); 4532 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4533 printf("ctl: requested LUN ID %d is higher " 4534 "than CTL_MAX_LUNS - 1 (%d)\n", 4535 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4536 } else { 4537 /* 4538 * XXX KDM return an error, or just assign 4539 * another LUN ID in this case?? 4540 */ 4541 printf("ctl: requested LUN ID %d is already " 4542 "in use\n", be_lun->req_lun_id); 4543 } 4544 if (lun->flags & CTL_LUN_MALLOCED) 4545 free(lun, M_CTL); 4546 be_lun->lun_config_status(be_lun->be_lun, 4547 CTL_LUN_CONFIG_FAILURE); 4548 return (ENOSPC); 4549 } 4550 lun_number = be_lun->req_lun_id; 4551 } else { 4552 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, CTL_MAX_LUNS); 4553 if (lun_number == -1) { 4554 mtx_unlock(&ctl_softc->ctl_lock); 4555 printf("ctl: can't allocate LUN on target %ju, out of " 4556 "LUNs\n", (uintmax_t)target_id.id); 4557 if (lun->flags & CTL_LUN_MALLOCED) 4558 free(lun, M_CTL); 4559 be_lun->lun_config_status(be_lun->be_lun, 4560 CTL_LUN_CONFIG_FAILURE); 4561 return (ENOSPC); 4562 } 4563 } 4564 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4565 4566 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4567 lun->target = target_id; 4568 lun->lun = lun_number; 4569 lun->be_lun = be_lun; 4570 /* 4571 * The processor LUN is always enabled. Disk LUNs come on line 4572 * disabled, and must be enabled by the backend. 4573 */ 4574 lun->flags |= CTL_LUN_DISABLED; 4575 lun->backend = be_lun->be; 4576 be_lun->ctl_lun = lun; 4577 be_lun->lun_id = lun_number; 4578 atomic_add_int(&be_lun->be->num_luns, 1); 4579 if (be_lun->flags & CTL_LUN_FLAG_OFFLINE) 4580 lun->flags |= CTL_LUN_OFFLINE; 4581 4582 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4583 lun->flags |= CTL_LUN_STOPPED; 4584 4585 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4586 lun->flags |= CTL_LUN_INOPERABLE; 4587 4588 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4589 lun->flags |= CTL_LUN_PRIMARY_SC; 4590 4591 value = ctl_get_opt(&be_lun->options, "readonly"); 4592 if (value != NULL && strcmp(value, "on") == 0) 4593 lun->flags |= CTL_LUN_READONLY; 4594 4595 lun->serseq = CTL_LUN_SERSEQ_OFF; 4596 if (be_lun->flags & CTL_LUN_FLAG_SERSEQ_READ) 4597 lun->serseq = CTL_LUN_SERSEQ_READ; 4598 value = ctl_get_opt(&be_lun->options, "serseq"); 4599 if (value != NULL && strcmp(value, "on") == 0) 4600 lun->serseq = CTL_LUN_SERSEQ_ON; 4601 else if (value != NULL && strcmp(value, "read") == 0) 4602 lun->serseq = CTL_LUN_SERSEQ_READ; 4603 else if (value != NULL && strcmp(value, "off") == 0) 4604 lun->serseq = CTL_LUN_SERSEQ_OFF; 4605 4606 lun->ctl_softc = ctl_softc; 4607 TAILQ_INIT(&lun->ooa_queue); 4608 TAILQ_INIT(&lun->blocked_queue); 4609 STAILQ_INIT(&lun->error_list); 4610 ctl_tpc_lun_init(lun); 4611 4612 /* 4613 * Initialize the mode and log page index. 4614 */ 4615 ctl_init_page_index(lun); 4616 ctl_init_log_page_index(lun); 4617 4618 /* 4619 * Now, before we insert this lun on the lun list, set the lun 4620 * inventory changed UA for all other luns. 4621 */ 4622 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4623 mtx_lock(&nlun->lun_lock); 4624 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4625 mtx_unlock(&nlun->lun_lock); 4626 } 4627 4628 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4629 4630 ctl_softc->ctl_luns[lun_number] = lun; 4631 4632 ctl_softc->num_luns++; 4633 4634 /* Setup statistics gathering */ 4635 lun->stats.device_type = be_lun->lun_type; 4636 lun->stats.lun_number = lun_number; 4637 if (lun->stats.device_type == T_DIRECT) 4638 lun->stats.blocksize = be_lun->blocksize; 4639 else 4640 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4641 for (i = 0;i < CTL_MAX_PORTS;i++) 4642 lun->stats.ports[i].targ_port = i; 4643 4644 mtx_unlock(&ctl_softc->ctl_lock); 4645 4646 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4647 4648 /* 4649 * Run through each registered FETD and bring it online if it isn't 4650 * already. Enable the target ID if it hasn't been enabled, and 4651 * enable this particular LUN. 4652 */ 4653 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4654 int retval; 4655 4656 retval = port->lun_enable(port->targ_lun_arg, target_id,lun_number); 4657 if (retval != 0) { 4658 printf("ctl_alloc_lun: FETD %s port %d returned error " 4659 "%d for lun_enable on target %ju lun %d\n", 4660 port->port_name, port->targ_port, retval, 4661 (uintmax_t)target_id.id, lun_number); 4662 } else 4663 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4664 } 4665 return (0); 4666 } 4667 4668 /* 4669 * Delete a LUN. 4670 * Assumptions: 4671 * - LUN has already been marked invalid and any pending I/O has been taken 4672 * care of. 4673 */ 4674 static int 4675 ctl_free_lun(struct ctl_lun *lun) 4676 { 4677 struct ctl_softc *softc; 4678 #if 0 4679 struct ctl_port *port; 4680 #endif 4681 struct ctl_lun *nlun; 4682 int i; 4683 4684 softc = lun->ctl_softc; 4685 4686 mtx_assert(&softc->ctl_lock, MA_OWNED); 4687 4688 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4689 4690 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4691 4692 softc->ctl_luns[lun->lun] = NULL; 4693 4694 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4695 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4696 4697 softc->num_luns--; 4698 4699 /* 4700 * XXX KDM this scheme only works for a single target/multiple LUN 4701 * setup. It needs to be revamped for a multiple target scheme. 4702 * 4703 * XXX KDM this results in port->lun_disable() getting called twice, 4704 * once when ctl_disable_lun() is called, and a second time here. 4705 * We really need to re-think the LUN disable semantics. There 4706 * should probably be several steps/levels to LUN removal: 4707 * - disable 4708 * - invalidate 4709 * - free 4710 * 4711 * Right now we only have a disable method when communicating to 4712 * the front end ports, at least for individual LUNs. 4713 */ 4714 #if 0 4715 STAILQ_FOREACH(port, &softc->port_list, links) { 4716 int retval; 4717 4718 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4719 lun->lun); 4720 if (retval != 0) { 4721 printf("ctl_free_lun: FETD %s port %d returned error " 4722 "%d for lun_disable on target %ju lun %jd\n", 4723 port->port_name, port->targ_port, retval, 4724 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4725 } 4726 4727 if (STAILQ_FIRST(&softc->lun_list) == NULL) { 4728 port->status &= ~CTL_PORT_STATUS_LUN_ONLINE; 4729 4730 retval = port->targ_disable(port->targ_lun_arg,lun->target); 4731 if (retval != 0) { 4732 printf("ctl_free_lun: FETD %s port %d " 4733 "returned error %d for targ_disable on " 4734 "target %ju\n", port->port_name, 4735 port->targ_port, retval, 4736 (uintmax_t)lun->target.id); 4737 } else 4738 port->status &= ~CTL_PORT_STATUS_TARG_ONLINE; 4739 4740 if ((port->status & CTL_PORT_STATUS_TARG_ONLINE) != 0) 4741 continue; 4742 4743 #if 0 4744 port->port_offline(port->onoff_arg); 4745 port->status &= ~CTL_PORT_STATUS_ONLINE; 4746 #endif 4747 } 4748 } 4749 #endif 4750 4751 /* 4752 * Tell the backend to free resources, if this LUN has a backend. 4753 */ 4754 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4755 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4756 4757 ctl_tpc_lun_shutdown(lun); 4758 mtx_destroy(&lun->lun_lock); 4759 free(lun->lun_devid, M_CTL); 4760 for (i = 0; i < CTL_MAX_PORTS; i++) 4761 free(lun->pending_ua[i], M_CTL); 4762 for (i = 0; i < 2 * CTL_MAX_PORTS; i++) 4763 free(lun->pr_keys[i], M_CTL); 4764 free(lun->write_buffer, M_CTL); 4765 if (lun->flags & CTL_LUN_MALLOCED) 4766 free(lun, M_CTL); 4767 4768 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4769 mtx_lock(&nlun->lun_lock); 4770 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4771 mtx_unlock(&nlun->lun_lock); 4772 } 4773 4774 return (0); 4775 } 4776 4777 static void 4778 ctl_create_lun(struct ctl_be_lun *be_lun) 4779 { 4780 struct ctl_softc *ctl_softc; 4781 4782 ctl_softc = control_softc; 4783 4784 /* 4785 * ctl_alloc_lun() should handle all potential failure cases. 4786 */ 4787 ctl_alloc_lun(ctl_softc, NULL, be_lun, ctl_softc->target); 4788 } 4789 4790 int 4791 ctl_add_lun(struct ctl_be_lun *be_lun) 4792 { 4793 struct ctl_softc *ctl_softc = control_softc; 4794 4795 mtx_lock(&ctl_softc->ctl_lock); 4796 STAILQ_INSERT_TAIL(&ctl_softc->pending_lun_queue, be_lun, links); 4797 mtx_unlock(&ctl_softc->ctl_lock); 4798 wakeup(&ctl_softc->pending_lun_queue); 4799 4800 return (0); 4801 } 4802 4803 int 4804 ctl_enable_lun(struct ctl_be_lun *be_lun) 4805 { 4806 struct ctl_softc *ctl_softc; 4807 struct ctl_port *port, *nport; 4808 struct ctl_lun *lun; 4809 int retval; 4810 4811 ctl_softc = control_softc; 4812 4813 lun = (struct ctl_lun *)be_lun->ctl_lun; 4814 4815 mtx_lock(&ctl_softc->ctl_lock); 4816 mtx_lock(&lun->lun_lock); 4817 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4818 /* 4819 * eh? Why did we get called if the LUN is already 4820 * enabled? 4821 */ 4822 mtx_unlock(&lun->lun_lock); 4823 mtx_unlock(&ctl_softc->ctl_lock); 4824 return (0); 4825 } 4826 lun->flags &= ~CTL_LUN_DISABLED; 4827 mtx_unlock(&lun->lun_lock); 4828 4829 for (port = STAILQ_FIRST(&ctl_softc->port_list); port != NULL; port = nport) { 4830 nport = STAILQ_NEXT(port, links); 4831 4832 /* 4833 * Drop the lock while we call the FETD's enable routine. 4834 * This can lead to a callback into CTL (at least in the 4835 * case of the internal initiator frontend. 4836 */ 4837 mtx_unlock(&ctl_softc->ctl_lock); 4838 retval = port->lun_enable(port->targ_lun_arg, lun->target,lun->lun); 4839 mtx_lock(&ctl_softc->ctl_lock); 4840 if (retval != 0) { 4841 printf("%s: FETD %s port %d returned error " 4842 "%d for lun_enable on target %ju lun %jd\n", 4843 __func__, port->port_name, port->targ_port, retval, 4844 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4845 } 4846 #if 0 4847 else { 4848 /* NOTE: TODO: why does lun enable affect port status? */ 4849 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4850 } 4851 #endif 4852 } 4853 4854 mtx_unlock(&ctl_softc->ctl_lock); 4855 4856 return (0); 4857 } 4858 4859 int 4860 ctl_disable_lun(struct ctl_be_lun *be_lun) 4861 { 4862 struct ctl_softc *ctl_softc; 4863 struct ctl_port *port; 4864 struct ctl_lun *lun; 4865 int retval; 4866 4867 ctl_softc = control_softc; 4868 4869 lun = (struct ctl_lun *)be_lun->ctl_lun; 4870 4871 mtx_lock(&ctl_softc->ctl_lock); 4872 mtx_lock(&lun->lun_lock); 4873 if (lun->flags & CTL_LUN_DISABLED) { 4874 mtx_unlock(&lun->lun_lock); 4875 mtx_unlock(&ctl_softc->ctl_lock); 4876 return (0); 4877 } 4878 lun->flags |= CTL_LUN_DISABLED; 4879 mtx_unlock(&lun->lun_lock); 4880 4881 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4882 mtx_unlock(&ctl_softc->ctl_lock); 4883 /* 4884 * Drop the lock before we call the frontend's disable 4885 * routine, to avoid lock order reversals. 4886 * 4887 * XXX KDM what happens if the frontend list changes while 4888 * we're traversing it? It's unlikely, but should be handled. 4889 */ 4890 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4891 lun->lun); 4892 mtx_lock(&ctl_softc->ctl_lock); 4893 if (retval != 0) { 4894 printf("ctl_alloc_lun: FETD %s port %d returned error " 4895 "%d for lun_disable on target %ju lun %jd\n", 4896 port->port_name, port->targ_port, retval, 4897 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4898 } 4899 } 4900 4901 mtx_unlock(&ctl_softc->ctl_lock); 4902 4903 return (0); 4904 } 4905 4906 int 4907 ctl_start_lun(struct ctl_be_lun *be_lun) 4908 { 4909 struct ctl_softc *ctl_softc; 4910 struct ctl_lun *lun; 4911 4912 ctl_softc = control_softc; 4913 4914 lun = (struct ctl_lun *)be_lun->ctl_lun; 4915 4916 mtx_lock(&lun->lun_lock); 4917 lun->flags &= ~CTL_LUN_STOPPED; 4918 mtx_unlock(&lun->lun_lock); 4919 4920 return (0); 4921 } 4922 4923 int 4924 ctl_stop_lun(struct ctl_be_lun *be_lun) 4925 { 4926 struct ctl_softc *ctl_softc; 4927 struct ctl_lun *lun; 4928 4929 ctl_softc = control_softc; 4930 4931 lun = (struct ctl_lun *)be_lun->ctl_lun; 4932 4933 mtx_lock(&lun->lun_lock); 4934 lun->flags |= CTL_LUN_STOPPED; 4935 mtx_unlock(&lun->lun_lock); 4936 4937 return (0); 4938 } 4939 4940 int 4941 ctl_lun_offline(struct ctl_be_lun *be_lun) 4942 { 4943 struct ctl_softc *ctl_softc; 4944 struct ctl_lun *lun; 4945 4946 ctl_softc = control_softc; 4947 4948 lun = (struct ctl_lun *)be_lun->ctl_lun; 4949 4950 mtx_lock(&lun->lun_lock); 4951 lun->flags |= CTL_LUN_OFFLINE; 4952 mtx_unlock(&lun->lun_lock); 4953 4954 return (0); 4955 } 4956 4957 int 4958 ctl_lun_online(struct ctl_be_lun *be_lun) 4959 { 4960 struct ctl_softc *ctl_softc; 4961 struct ctl_lun *lun; 4962 4963 ctl_softc = control_softc; 4964 4965 lun = (struct ctl_lun *)be_lun->ctl_lun; 4966 4967 mtx_lock(&lun->lun_lock); 4968 lun->flags &= ~CTL_LUN_OFFLINE; 4969 mtx_unlock(&lun->lun_lock); 4970 4971 return (0); 4972 } 4973 4974 int 4975 ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4976 { 4977 struct ctl_softc *ctl_softc; 4978 struct ctl_lun *lun; 4979 4980 ctl_softc = control_softc; 4981 4982 lun = (struct ctl_lun *)be_lun->ctl_lun; 4983 4984 mtx_lock(&lun->lun_lock); 4985 4986 /* 4987 * The LUN needs to be disabled before it can be marked invalid. 4988 */ 4989 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4990 mtx_unlock(&lun->lun_lock); 4991 return (-1); 4992 } 4993 /* 4994 * Mark the LUN invalid. 4995 */ 4996 lun->flags |= CTL_LUN_INVALID; 4997 4998 /* 4999 * If there is nothing in the OOA queue, go ahead and free the LUN. 5000 * If we have something in the OOA queue, we'll free it when the 5001 * last I/O completes. 5002 */ 5003 if (TAILQ_EMPTY(&lun->ooa_queue)) { 5004 mtx_unlock(&lun->lun_lock); 5005 mtx_lock(&ctl_softc->ctl_lock); 5006 ctl_free_lun(lun); 5007 mtx_unlock(&ctl_softc->ctl_lock); 5008 } else 5009 mtx_unlock(&lun->lun_lock); 5010 5011 return (0); 5012 } 5013 5014 int 5015 ctl_lun_inoperable(struct ctl_be_lun *be_lun) 5016 { 5017 struct ctl_softc *ctl_softc; 5018 struct ctl_lun *lun; 5019 5020 ctl_softc = control_softc; 5021 lun = (struct ctl_lun *)be_lun->ctl_lun; 5022 5023 mtx_lock(&lun->lun_lock); 5024 lun->flags |= CTL_LUN_INOPERABLE; 5025 mtx_unlock(&lun->lun_lock); 5026 5027 return (0); 5028 } 5029 5030 int 5031 ctl_lun_operable(struct ctl_be_lun *be_lun) 5032 { 5033 struct ctl_softc *ctl_softc; 5034 struct ctl_lun *lun; 5035 5036 ctl_softc = control_softc; 5037 lun = (struct ctl_lun *)be_lun->ctl_lun; 5038 5039 mtx_lock(&lun->lun_lock); 5040 lun->flags &= ~CTL_LUN_INOPERABLE; 5041 mtx_unlock(&lun->lun_lock); 5042 5043 return (0); 5044 } 5045 5046 void 5047 ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 5048 { 5049 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 5050 5051 mtx_lock(&lun->lun_lock); 5052 ctl_est_ua_all(lun, -1, CTL_UA_CAPACITY_CHANGED); 5053 mtx_unlock(&lun->lun_lock); 5054 } 5055 5056 /* 5057 * Backend "memory move is complete" callback for requests that never 5058 * make it down to say RAIDCore's configuration code. 5059 */ 5060 int 5061 ctl_config_move_done(union ctl_io *io) 5062 { 5063 int retval; 5064 5065 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 5066 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI, 5067 ("Config I/O type isn't CTL_IO_SCSI (%d)!", io->io_hdr.io_type)); 5068 5069 if ((io->io_hdr.port_status != 0) && 5070 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5071 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5072 /* 5073 * For hardware error sense keys, the sense key 5074 * specific value is defined to be a retry count, 5075 * but we use it to pass back an internal FETD 5076 * error code. XXX KDM Hopefully the FETD is only 5077 * using 16 bits for an error code, since that's 5078 * all the space we have in the sks field. 5079 */ 5080 ctl_set_internal_failure(&io->scsiio, 5081 /*sks_valid*/ 1, 5082 /*retry_count*/ 5083 io->io_hdr.port_status); 5084 } 5085 5086 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) || 5087 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5088 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) || 5089 ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5090 /* 5091 * XXX KDM just assuming a single pointer here, and not a 5092 * S/G list. If we start using S/G lists for config data, 5093 * we'll need to know how to clean them up here as well. 5094 */ 5095 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5096 free(io->scsiio.kern_data_ptr, M_CTL); 5097 ctl_done(io); 5098 retval = CTL_RETVAL_COMPLETE; 5099 } else { 5100 /* 5101 * XXX KDM now we need to continue data movement. Some 5102 * options: 5103 * - call ctl_scsiio() again? We don't do this for data 5104 * writes, because for those at least we know ahead of 5105 * time where the write will go and how long it is. For 5106 * config writes, though, that information is largely 5107 * contained within the write itself, thus we need to 5108 * parse out the data again. 5109 * 5110 * - Call some other function once the data is in? 5111 */ 5112 if (ctl_debug & CTL_DEBUG_CDB_DATA) 5113 ctl_data_print(io); 5114 5115 /* 5116 * XXX KDM call ctl_scsiio() again for now, and check flag 5117 * bits to see whether we're allocated or not. 5118 */ 5119 retval = ctl_scsiio(&io->scsiio); 5120 } 5121 return (retval); 5122 } 5123 5124 /* 5125 * This gets called by a backend driver when it is done with a 5126 * data_submit method. 5127 */ 5128 void 5129 ctl_data_submit_done(union ctl_io *io) 5130 { 5131 /* 5132 * If the IO_CONT flag is set, we need to call the supplied 5133 * function to continue processing the I/O, instead of completing 5134 * the I/O just yet. 5135 * 5136 * If there is an error, though, we don't want to keep processing. 5137 * Instead, just send status back to the initiator. 5138 */ 5139 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5140 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5141 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5142 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5143 io->scsiio.io_cont(io); 5144 return; 5145 } 5146 ctl_done(io); 5147 } 5148 5149 /* 5150 * This gets called by a backend driver when it is done with a 5151 * configuration write. 5152 */ 5153 void 5154 ctl_config_write_done(union ctl_io *io) 5155 { 5156 uint8_t *buf; 5157 5158 /* 5159 * If the IO_CONT flag is set, we need to call the supplied 5160 * function to continue processing the I/O, instead of completing 5161 * the I/O just yet. 5162 * 5163 * If there is an error, though, we don't want to keep processing. 5164 * Instead, just send status back to the initiator. 5165 */ 5166 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5167 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5168 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5169 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5170 io->scsiio.io_cont(io); 5171 return; 5172 } 5173 /* 5174 * Since a configuration write can be done for commands that actually 5175 * have data allocated, like write buffer, and commands that have 5176 * no data, like start/stop unit, we need to check here. 5177 */ 5178 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5179 buf = io->scsiio.kern_data_ptr; 5180 else 5181 buf = NULL; 5182 ctl_done(io); 5183 if (buf) 5184 free(buf, M_CTL); 5185 } 5186 5187 void 5188 ctl_config_read_done(union ctl_io *io) 5189 { 5190 uint8_t *buf; 5191 5192 /* 5193 * If there is some error -- we are done, skip data transfer. 5194 */ 5195 if ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0 || 5196 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5197 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) { 5198 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5199 buf = io->scsiio.kern_data_ptr; 5200 else 5201 buf = NULL; 5202 ctl_done(io); 5203 if (buf) 5204 free(buf, M_CTL); 5205 return; 5206 } 5207 5208 /* 5209 * If the IO_CONT flag is set, we need to call the supplied 5210 * function to continue processing the I/O, instead of completing 5211 * the I/O just yet. 5212 */ 5213 if (io->io_hdr.flags & CTL_FLAG_IO_CONT) { 5214 io->scsiio.io_cont(io); 5215 return; 5216 } 5217 5218 ctl_datamove(io); 5219 } 5220 5221 /* 5222 * SCSI release command. 5223 */ 5224 int 5225 ctl_scsi_release(struct ctl_scsiio *ctsio) 5226 { 5227 int length, longid, thirdparty_id, resv_id; 5228 struct ctl_softc *ctl_softc; 5229 struct ctl_lun *lun; 5230 uint32_t residx; 5231 5232 length = 0; 5233 resv_id = 0; 5234 5235 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5236 5237 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5238 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5239 ctl_softc = control_softc; 5240 5241 switch (ctsio->cdb[0]) { 5242 case RELEASE_10: { 5243 struct scsi_release_10 *cdb; 5244 5245 cdb = (struct scsi_release_10 *)ctsio->cdb; 5246 5247 if (cdb->byte2 & SR10_LONGID) 5248 longid = 1; 5249 else 5250 thirdparty_id = cdb->thirdparty_id; 5251 5252 resv_id = cdb->resv_id; 5253 length = scsi_2btoul(cdb->length); 5254 break; 5255 } 5256 } 5257 5258 5259 /* 5260 * XXX KDM right now, we only support LUN reservation. We don't 5261 * support 3rd party reservations, or extent reservations, which 5262 * might actually need the parameter list. If we've gotten this 5263 * far, we've got a LUN reservation. Anything else got kicked out 5264 * above. So, according to SPC, ignore the length. 5265 */ 5266 length = 0; 5267 5268 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5269 && (length > 0)) { 5270 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5271 ctsio->kern_data_len = length; 5272 ctsio->kern_total_len = length; 5273 ctsio->kern_data_resid = 0; 5274 ctsio->kern_rel_offset = 0; 5275 ctsio->kern_sg_entries = 0; 5276 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5277 ctsio->be_move_done = ctl_config_move_done; 5278 ctl_datamove((union ctl_io *)ctsio); 5279 5280 return (CTL_RETVAL_COMPLETE); 5281 } 5282 5283 if (length > 0) 5284 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5285 5286 mtx_lock(&lun->lun_lock); 5287 5288 /* 5289 * According to SPC, it is not an error for an intiator to attempt 5290 * to release a reservation on a LUN that isn't reserved, or that 5291 * is reserved by another initiator. The reservation can only be 5292 * released, though, by the initiator who made it or by one of 5293 * several reset type events. 5294 */ 5295 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5296 lun->flags &= ~CTL_LUN_RESERVED; 5297 5298 mtx_unlock(&lun->lun_lock); 5299 5300 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5301 free(ctsio->kern_data_ptr, M_CTL); 5302 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5303 } 5304 5305 ctl_set_success(ctsio); 5306 ctl_done((union ctl_io *)ctsio); 5307 return (CTL_RETVAL_COMPLETE); 5308 } 5309 5310 int 5311 ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5312 { 5313 int extent, thirdparty, longid; 5314 int resv_id, length; 5315 uint64_t thirdparty_id; 5316 struct ctl_softc *ctl_softc; 5317 struct ctl_lun *lun; 5318 uint32_t residx; 5319 5320 extent = 0; 5321 thirdparty = 0; 5322 longid = 0; 5323 resv_id = 0; 5324 length = 0; 5325 thirdparty_id = 0; 5326 5327 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5328 5329 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5330 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5331 ctl_softc = control_softc; 5332 5333 switch (ctsio->cdb[0]) { 5334 case RESERVE_10: { 5335 struct scsi_reserve_10 *cdb; 5336 5337 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 5338 5339 if (cdb->byte2 & SR10_LONGID) 5340 longid = 1; 5341 else 5342 thirdparty_id = cdb->thirdparty_id; 5343 5344 resv_id = cdb->resv_id; 5345 length = scsi_2btoul(cdb->length); 5346 break; 5347 } 5348 } 5349 5350 /* 5351 * XXX KDM right now, we only support LUN reservation. We don't 5352 * support 3rd party reservations, or extent reservations, which 5353 * might actually need the parameter list. If we've gotten this 5354 * far, we've got a LUN reservation. Anything else got kicked out 5355 * above. So, according to SPC, ignore the length. 5356 */ 5357 length = 0; 5358 5359 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5360 && (length > 0)) { 5361 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5362 ctsio->kern_data_len = length; 5363 ctsio->kern_total_len = length; 5364 ctsio->kern_data_resid = 0; 5365 ctsio->kern_rel_offset = 0; 5366 ctsio->kern_sg_entries = 0; 5367 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5368 ctsio->be_move_done = ctl_config_move_done; 5369 ctl_datamove((union ctl_io *)ctsio); 5370 5371 return (CTL_RETVAL_COMPLETE); 5372 } 5373 5374 if (length > 0) 5375 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5376 5377 mtx_lock(&lun->lun_lock); 5378 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5379 ctl_set_reservation_conflict(ctsio); 5380 goto bailout; 5381 } 5382 5383 lun->flags |= CTL_LUN_RESERVED; 5384 lun->res_idx = residx; 5385 5386 ctl_set_success(ctsio); 5387 5388 bailout: 5389 mtx_unlock(&lun->lun_lock); 5390 5391 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5392 free(ctsio->kern_data_ptr, M_CTL); 5393 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5394 } 5395 5396 ctl_done((union ctl_io *)ctsio); 5397 return (CTL_RETVAL_COMPLETE); 5398 } 5399 5400 int 5401 ctl_start_stop(struct ctl_scsiio *ctsio) 5402 { 5403 struct scsi_start_stop_unit *cdb; 5404 struct ctl_lun *lun; 5405 struct ctl_softc *ctl_softc; 5406 int retval; 5407 5408 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5409 5410 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5411 ctl_softc = control_softc; 5412 retval = 0; 5413 5414 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5415 5416 /* 5417 * XXX KDM 5418 * We don't support the immediate bit on a stop unit. In order to 5419 * do that, we would need to code up a way to know that a stop is 5420 * pending, and hold off any new commands until it completes, one 5421 * way or another. Then we could accept or reject those commands 5422 * depending on its status. We would almost need to do the reverse 5423 * of what we do below for an immediate start -- return the copy of 5424 * the ctl_io to the FETD with status to send to the host (and to 5425 * free the copy!) and then free the original I/O once the stop 5426 * actually completes. That way, the OOA queue mechanism can work 5427 * to block commands that shouldn't proceed. Another alternative 5428 * would be to put the copy in the queue in place of the original, 5429 * and return the original back to the caller. That could be 5430 * slightly safer.. 5431 */ 5432 if ((cdb->byte2 & SSS_IMMED) 5433 && ((cdb->how & SSS_START) == 0)) { 5434 ctl_set_invalid_field(ctsio, 5435 /*sks_valid*/ 1, 5436 /*command*/ 1, 5437 /*field*/ 1, 5438 /*bit_valid*/ 1, 5439 /*bit*/ 0); 5440 ctl_done((union ctl_io *)ctsio); 5441 return (CTL_RETVAL_COMPLETE); 5442 } 5443 5444 if ((lun->flags & CTL_LUN_PR_RESERVED) 5445 && ((cdb->how & SSS_START)==0)) { 5446 uint32_t residx; 5447 5448 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5449 if (ctl_get_prkey(lun, residx) == 0 5450 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5451 5452 ctl_set_reservation_conflict(ctsio); 5453 ctl_done((union ctl_io *)ctsio); 5454 return (CTL_RETVAL_COMPLETE); 5455 } 5456 } 5457 5458 /* 5459 * If there is no backend on this device, we can't start or stop 5460 * it. In theory we shouldn't get any start/stop commands in the 5461 * first place at this level if the LUN doesn't have a backend. 5462 * That should get stopped by the command decode code. 5463 */ 5464 if (lun->backend == NULL) { 5465 ctl_set_invalid_opcode(ctsio); 5466 ctl_done((union ctl_io *)ctsio); 5467 return (CTL_RETVAL_COMPLETE); 5468 } 5469 5470 /* 5471 * XXX KDM Copan-specific offline behavior. 5472 * Figure out a reasonable way to port this? 5473 */ 5474 #ifdef NEEDTOPORT 5475 mtx_lock(&lun->lun_lock); 5476 5477 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5478 && (lun->flags & CTL_LUN_OFFLINE)) { 5479 /* 5480 * If the LUN is offline, and the on/offline bit isn't set, 5481 * reject the start or stop. Otherwise, let it through. 5482 */ 5483 mtx_unlock(&lun->lun_lock); 5484 ctl_set_lun_not_ready(ctsio); 5485 ctl_done((union ctl_io *)ctsio); 5486 } else { 5487 mtx_unlock(&lun->lun_lock); 5488 #endif /* NEEDTOPORT */ 5489 /* 5490 * This could be a start or a stop when we're online, 5491 * or a stop/offline or start/online. A start or stop when 5492 * we're offline is covered in the case above. 5493 */ 5494 /* 5495 * In the non-immediate case, we send the request to 5496 * the backend and return status to the user when 5497 * it is done. 5498 * 5499 * In the immediate case, we allocate a new ctl_io 5500 * to hold a copy of the request, and send that to 5501 * the backend. We then set good status on the 5502 * user's request and return it immediately. 5503 */ 5504 if (cdb->byte2 & SSS_IMMED) { 5505 union ctl_io *new_io; 5506 5507 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5508 ctl_copy_io((union ctl_io *)ctsio, new_io); 5509 retval = lun->backend->config_write(new_io); 5510 ctl_set_success(ctsio); 5511 ctl_done((union ctl_io *)ctsio); 5512 } else { 5513 retval = lun->backend->config_write( 5514 (union ctl_io *)ctsio); 5515 } 5516 #ifdef NEEDTOPORT 5517 } 5518 #endif 5519 return (retval); 5520 } 5521 5522 /* 5523 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5524 * we don't really do anything with the LBA and length fields if the user 5525 * passes them in. Instead we'll just flush out the cache for the entire 5526 * LUN. 5527 */ 5528 int 5529 ctl_sync_cache(struct ctl_scsiio *ctsio) 5530 { 5531 struct ctl_lun *lun; 5532 struct ctl_softc *ctl_softc; 5533 uint64_t starting_lba; 5534 uint32_t block_count; 5535 int retval; 5536 5537 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5538 5539 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5540 ctl_softc = control_softc; 5541 retval = 0; 5542 5543 switch (ctsio->cdb[0]) { 5544 case SYNCHRONIZE_CACHE: { 5545 struct scsi_sync_cache *cdb; 5546 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5547 5548 starting_lba = scsi_4btoul(cdb->begin_lba); 5549 block_count = scsi_2btoul(cdb->lb_count); 5550 break; 5551 } 5552 case SYNCHRONIZE_CACHE_16: { 5553 struct scsi_sync_cache_16 *cdb; 5554 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5555 5556 starting_lba = scsi_8btou64(cdb->begin_lba); 5557 block_count = scsi_4btoul(cdb->lb_count); 5558 break; 5559 } 5560 default: 5561 ctl_set_invalid_opcode(ctsio); 5562 ctl_done((union ctl_io *)ctsio); 5563 goto bailout; 5564 break; /* NOTREACHED */ 5565 } 5566 5567 /* 5568 * We check the LBA and length, but don't do anything with them. 5569 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5570 * get flushed. This check will just help satisfy anyone who wants 5571 * to see an error for an out of range LBA. 5572 */ 5573 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5574 ctl_set_lba_out_of_range(ctsio); 5575 ctl_done((union ctl_io *)ctsio); 5576 goto bailout; 5577 } 5578 5579 /* 5580 * If this LUN has no backend, we can't flush the cache anyway. 5581 */ 5582 if (lun->backend == NULL) { 5583 ctl_set_invalid_opcode(ctsio); 5584 ctl_done((union ctl_io *)ctsio); 5585 goto bailout; 5586 } 5587 5588 /* 5589 * Check to see whether we're configured to send the SYNCHRONIZE 5590 * CACHE command directly to the back end. 5591 */ 5592 mtx_lock(&lun->lun_lock); 5593 if ((ctl_softc->flags & CTL_FLAG_REAL_SYNC) 5594 && (++(lun->sync_count) >= lun->sync_interval)) { 5595 lun->sync_count = 0; 5596 mtx_unlock(&lun->lun_lock); 5597 retval = lun->backend->config_write((union ctl_io *)ctsio); 5598 } else { 5599 mtx_unlock(&lun->lun_lock); 5600 ctl_set_success(ctsio); 5601 ctl_done((union ctl_io *)ctsio); 5602 } 5603 5604 bailout: 5605 5606 return (retval); 5607 } 5608 5609 int 5610 ctl_format(struct ctl_scsiio *ctsio) 5611 { 5612 struct scsi_format *cdb; 5613 struct ctl_lun *lun; 5614 struct ctl_softc *ctl_softc; 5615 int length, defect_list_len; 5616 5617 CTL_DEBUG_PRINT(("ctl_format\n")); 5618 5619 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5620 ctl_softc = control_softc; 5621 5622 cdb = (struct scsi_format *)ctsio->cdb; 5623 5624 length = 0; 5625 if (cdb->byte2 & SF_FMTDATA) { 5626 if (cdb->byte2 & SF_LONGLIST) 5627 length = sizeof(struct scsi_format_header_long); 5628 else 5629 length = sizeof(struct scsi_format_header_short); 5630 } 5631 5632 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5633 && (length > 0)) { 5634 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5635 ctsio->kern_data_len = length; 5636 ctsio->kern_total_len = length; 5637 ctsio->kern_data_resid = 0; 5638 ctsio->kern_rel_offset = 0; 5639 ctsio->kern_sg_entries = 0; 5640 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5641 ctsio->be_move_done = ctl_config_move_done; 5642 ctl_datamove((union ctl_io *)ctsio); 5643 5644 return (CTL_RETVAL_COMPLETE); 5645 } 5646 5647 defect_list_len = 0; 5648 5649 if (cdb->byte2 & SF_FMTDATA) { 5650 if (cdb->byte2 & SF_LONGLIST) { 5651 struct scsi_format_header_long *header; 5652 5653 header = (struct scsi_format_header_long *) 5654 ctsio->kern_data_ptr; 5655 5656 defect_list_len = scsi_4btoul(header->defect_list_len); 5657 if (defect_list_len != 0) { 5658 ctl_set_invalid_field(ctsio, 5659 /*sks_valid*/ 1, 5660 /*command*/ 0, 5661 /*field*/ 2, 5662 /*bit_valid*/ 0, 5663 /*bit*/ 0); 5664 goto bailout; 5665 } 5666 } else { 5667 struct scsi_format_header_short *header; 5668 5669 header = (struct scsi_format_header_short *) 5670 ctsio->kern_data_ptr; 5671 5672 defect_list_len = scsi_2btoul(header->defect_list_len); 5673 if (defect_list_len != 0) { 5674 ctl_set_invalid_field(ctsio, 5675 /*sks_valid*/ 1, 5676 /*command*/ 0, 5677 /*field*/ 2, 5678 /*bit_valid*/ 0, 5679 /*bit*/ 0); 5680 goto bailout; 5681 } 5682 } 5683 } 5684 5685 /* 5686 * The format command will clear out the "Medium format corrupted" 5687 * status if set by the configuration code. That status is really 5688 * just a way to notify the host that we have lost the media, and 5689 * get them to issue a command that will basically make them think 5690 * they're blowing away the media. 5691 */ 5692 mtx_lock(&lun->lun_lock); 5693 lun->flags &= ~CTL_LUN_INOPERABLE; 5694 mtx_unlock(&lun->lun_lock); 5695 5696 ctl_set_success(ctsio); 5697 bailout: 5698 5699 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5700 free(ctsio->kern_data_ptr, M_CTL); 5701 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5702 } 5703 5704 ctl_done((union ctl_io *)ctsio); 5705 return (CTL_RETVAL_COMPLETE); 5706 } 5707 5708 int 5709 ctl_read_buffer(struct ctl_scsiio *ctsio) 5710 { 5711 struct scsi_read_buffer *cdb; 5712 struct ctl_lun *lun; 5713 int buffer_offset, len; 5714 static uint8_t descr[4]; 5715 static uint8_t echo_descr[4] = { 0 }; 5716 5717 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5718 5719 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5720 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5721 5722 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA && 5723 (cdb->byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5724 (cdb->byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5725 ctl_set_invalid_field(ctsio, 5726 /*sks_valid*/ 1, 5727 /*command*/ 1, 5728 /*field*/ 1, 5729 /*bit_valid*/ 1, 5730 /*bit*/ 4); 5731 ctl_done((union ctl_io *)ctsio); 5732 return (CTL_RETVAL_COMPLETE); 5733 } 5734 5735 len = scsi_3btoul(cdb->length); 5736 buffer_offset = scsi_3btoul(cdb->offset); 5737 5738 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5739 ctl_set_invalid_field(ctsio, 5740 /*sks_valid*/ 1, 5741 /*command*/ 1, 5742 /*field*/ 6, 5743 /*bit_valid*/ 0, 5744 /*bit*/ 0); 5745 ctl_done((union ctl_io *)ctsio); 5746 return (CTL_RETVAL_COMPLETE); 5747 } 5748 5749 if ((cdb->byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5750 descr[0] = 0; 5751 scsi_ulto3b(CTL_WRITE_BUFFER_SIZE, &descr[1]); 5752 ctsio->kern_data_ptr = descr; 5753 len = min(len, sizeof(descr)); 5754 } else if ((cdb->byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5755 ctsio->kern_data_ptr = echo_descr; 5756 len = min(len, sizeof(echo_descr)); 5757 } else { 5758 if (lun->write_buffer == NULL) { 5759 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5760 M_CTL, M_WAITOK); 5761 } 5762 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5763 } 5764 ctsio->kern_data_len = len; 5765 ctsio->kern_total_len = len; 5766 ctsio->kern_data_resid = 0; 5767 ctsio->kern_rel_offset = 0; 5768 ctsio->kern_sg_entries = 0; 5769 ctl_set_success(ctsio); 5770 ctsio->be_move_done = ctl_config_move_done; 5771 ctl_datamove((union ctl_io *)ctsio); 5772 return (CTL_RETVAL_COMPLETE); 5773 } 5774 5775 int 5776 ctl_write_buffer(struct ctl_scsiio *ctsio) 5777 { 5778 struct scsi_write_buffer *cdb; 5779 struct ctl_lun *lun; 5780 int buffer_offset, len; 5781 5782 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5783 5784 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5785 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5786 5787 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5788 ctl_set_invalid_field(ctsio, 5789 /*sks_valid*/ 1, 5790 /*command*/ 1, 5791 /*field*/ 1, 5792 /*bit_valid*/ 1, 5793 /*bit*/ 4); 5794 ctl_done((union ctl_io *)ctsio); 5795 return (CTL_RETVAL_COMPLETE); 5796 } 5797 5798 len = scsi_3btoul(cdb->length); 5799 buffer_offset = scsi_3btoul(cdb->offset); 5800 5801 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5802 ctl_set_invalid_field(ctsio, 5803 /*sks_valid*/ 1, 5804 /*command*/ 1, 5805 /*field*/ 6, 5806 /*bit_valid*/ 0, 5807 /*bit*/ 0); 5808 ctl_done((union ctl_io *)ctsio); 5809 return (CTL_RETVAL_COMPLETE); 5810 } 5811 5812 /* 5813 * If we've got a kernel request that hasn't been malloced yet, 5814 * malloc it and tell the caller the data buffer is here. 5815 */ 5816 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5817 if (lun->write_buffer == NULL) { 5818 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5819 M_CTL, M_WAITOK); 5820 } 5821 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5822 ctsio->kern_data_len = len; 5823 ctsio->kern_total_len = len; 5824 ctsio->kern_data_resid = 0; 5825 ctsio->kern_rel_offset = 0; 5826 ctsio->kern_sg_entries = 0; 5827 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5828 ctsio->be_move_done = ctl_config_move_done; 5829 ctl_datamove((union ctl_io *)ctsio); 5830 5831 return (CTL_RETVAL_COMPLETE); 5832 } 5833 5834 ctl_set_success(ctsio); 5835 ctl_done((union ctl_io *)ctsio); 5836 return (CTL_RETVAL_COMPLETE); 5837 } 5838 5839 int 5840 ctl_write_same(struct ctl_scsiio *ctsio) 5841 { 5842 struct ctl_lun *lun; 5843 struct ctl_lba_len_flags *lbalen; 5844 uint64_t lba; 5845 uint32_t num_blocks; 5846 int len, retval; 5847 uint8_t byte2; 5848 5849 retval = CTL_RETVAL_COMPLETE; 5850 5851 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5852 5853 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5854 5855 switch (ctsio->cdb[0]) { 5856 case WRITE_SAME_10: { 5857 struct scsi_write_same_10 *cdb; 5858 5859 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5860 5861 lba = scsi_4btoul(cdb->addr); 5862 num_blocks = scsi_2btoul(cdb->length); 5863 byte2 = cdb->byte2; 5864 break; 5865 } 5866 case WRITE_SAME_16: { 5867 struct scsi_write_same_16 *cdb; 5868 5869 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5870 5871 lba = scsi_8btou64(cdb->addr); 5872 num_blocks = scsi_4btoul(cdb->length); 5873 byte2 = cdb->byte2; 5874 break; 5875 } 5876 default: 5877 /* 5878 * We got a command we don't support. This shouldn't 5879 * happen, commands should be filtered out above us. 5880 */ 5881 ctl_set_invalid_opcode(ctsio); 5882 ctl_done((union ctl_io *)ctsio); 5883 5884 return (CTL_RETVAL_COMPLETE); 5885 break; /* NOTREACHED */ 5886 } 5887 5888 /* NDOB and ANCHOR flags can be used only together with UNMAP */ 5889 if ((byte2 & SWS_UNMAP) == 0 && 5890 (byte2 & (SWS_NDOB | SWS_ANCHOR)) != 0) { 5891 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5892 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5893 ctl_done((union ctl_io *)ctsio); 5894 return (CTL_RETVAL_COMPLETE); 5895 } 5896 5897 /* 5898 * The first check is to make sure we're in bounds, the second 5899 * check is to catch wrap-around problems. If the lba + num blocks 5900 * is less than the lba, then we've wrapped around and the block 5901 * range is invalid anyway. 5902 */ 5903 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5904 || ((lba + num_blocks) < lba)) { 5905 ctl_set_lba_out_of_range(ctsio); 5906 ctl_done((union ctl_io *)ctsio); 5907 return (CTL_RETVAL_COMPLETE); 5908 } 5909 5910 /* Zero number of blocks means "to the last logical block" */ 5911 if (num_blocks == 0) { 5912 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5913 ctl_set_invalid_field(ctsio, 5914 /*sks_valid*/ 0, 5915 /*command*/ 1, 5916 /*field*/ 0, 5917 /*bit_valid*/ 0, 5918 /*bit*/ 0); 5919 ctl_done((union ctl_io *)ctsio); 5920 return (CTL_RETVAL_COMPLETE); 5921 } 5922 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5923 } 5924 5925 len = lun->be_lun->blocksize; 5926 5927 /* 5928 * If we've got a kernel request that hasn't been malloced yet, 5929 * malloc it and tell the caller the data buffer is here. 5930 */ 5931 if ((byte2 & SWS_NDOB) == 0 && 5932 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5933 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5934 ctsio->kern_data_len = len; 5935 ctsio->kern_total_len = len; 5936 ctsio->kern_data_resid = 0; 5937 ctsio->kern_rel_offset = 0; 5938 ctsio->kern_sg_entries = 0; 5939 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5940 ctsio->be_move_done = ctl_config_move_done; 5941 ctl_datamove((union ctl_io *)ctsio); 5942 5943 return (CTL_RETVAL_COMPLETE); 5944 } 5945 5946 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5947 lbalen->lba = lba; 5948 lbalen->len = num_blocks; 5949 lbalen->flags = byte2; 5950 retval = lun->backend->config_write((union ctl_io *)ctsio); 5951 5952 return (retval); 5953 } 5954 5955 int 5956 ctl_unmap(struct ctl_scsiio *ctsio) 5957 { 5958 struct ctl_lun *lun; 5959 struct scsi_unmap *cdb; 5960 struct ctl_ptr_len_flags *ptrlen; 5961 struct scsi_unmap_header *hdr; 5962 struct scsi_unmap_desc *buf, *end, *endnz, *range; 5963 uint64_t lba; 5964 uint32_t num_blocks; 5965 int len, retval; 5966 uint8_t byte2; 5967 5968 retval = CTL_RETVAL_COMPLETE; 5969 5970 CTL_DEBUG_PRINT(("ctl_unmap\n")); 5971 5972 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5973 cdb = (struct scsi_unmap *)ctsio->cdb; 5974 5975 len = scsi_2btoul(cdb->length); 5976 byte2 = cdb->byte2; 5977 5978 /* 5979 * If we've got a kernel request that hasn't been malloced yet, 5980 * malloc it and tell the caller the data buffer is here. 5981 */ 5982 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5983 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 5984 ctsio->kern_data_len = len; 5985 ctsio->kern_total_len = len; 5986 ctsio->kern_data_resid = 0; 5987 ctsio->kern_rel_offset = 0; 5988 ctsio->kern_sg_entries = 0; 5989 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5990 ctsio->be_move_done = ctl_config_move_done; 5991 ctl_datamove((union ctl_io *)ctsio); 5992 5993 return (CTL_RETVAL_COMPLETE); 5994 } 5995 5996 len = ctsio->kern_total_len - ctsio->kern_data_resid; 5997 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 5998 if (len < sizeof (*hdr) || 5999 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 6000 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 6001 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 6002 ctl_set_invalid_field(ctsio, 6003 /*sks_valid*/ 0, 6004 /*command*/ 0, 6005 /*field*/ 0, 6006 /*bit_valid*/ 0, 6007 /*bit*/ 0); 6008 goto done; 6009 } 6010 len = scsi_2btoul(hdr->desc_length); 6011 buf = (struct scsi_unmap_desc *)(hdr + 1); 6012 end = buf + len / sizeof(*buf); 6013 6014 endnz = buf; 6015 for (range = buf; range < end; range++) { 6016 lba = scsi_8btou64(range->lba); 6017 num_blocks = scsi_4btoul(range->length); 6018 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 6019 || ((lba + num_blocks) < lba)) { 6020 ctl_set_lba_out_of_range(ctsio); 6021 ctl_done((union ctl_io *)ctsio); 6022 return (CTL_RETVAL_COMPLETE); 6023 } 6024 if (num_blocks != 0) 6025 endnz = range + 1; 6026 } 6027 6028 /* 6029 * Block backend can not handle zero last range. 6030 * Filter it out and return if there is nothing left. 6031 */ 6032 len = (uint8_t *)endnz - (uint8_t *)buf; 6033 if (len == 0) { 6034 ctl_set_success(ctsio); 6035 goto done; 6036 } 6037 6038 mtx_lock(&lun->lun_lock); 6039 ptrlen = (struct ctl_ptr_len_flags *) 6040 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6041 ptrlen->ptr = (void *)buf; 6042 ptrlen->len = len; 6043 ptrlen->flags = byte2; 6044 ctl_check_blocked(lun); 6045 mtx_unlock(&lun->lun_lock); 6046 6047 retval = lun->backend->config_write((union ctl_io *)ctsio); 6048 return (retval); 6049 6050 done: 6051 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 6052 free(ctsio->kern_data_ptr, M_CTL); 6053 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 6054 } 6055 ctl_done((union ctl_io *)ctsio); 6056 return (CTL_RETVAL_COMPLETE); 6057 } 6058 6059 /* 6060 * Note that this function currently doesn't actually do anything inside 6061 * CTL to enforce things if the DQue bit is turned on. 6062 * 6063 * Also note that this function can't be used in the default case, because 6064 * the DQue bit isn't set in the changeable mask for the control mode page 6065 * anyway. This is just here as an example for how to implement a page 6066 * handler, and a placeholder in case we want to allow the user to turn 6067 * tagged queueing on and off. 6068 * 6069 * The D_SENSE bit handling is functional, however, and will turn 6070 * descriptor sense on and off for a given LUN. 6071 */ 6072 int 6073 ctl_control_page_handler(struct ctl_scsiio *ctsio, 6074 struct ctl_page_index *page_index, uint8_t *page_ptr) 6075 { 6076 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 6077 struct ctl_lun *lun; 6078 struct ctl_softc *softc; 6079 int set_ua; 6080 uint32_t initidx; 6081 6082 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6083 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6084 set_ua = 0; 6085 6086 user_cp = (struct scsi_control_page *)page_ptr; 6087 current_cp = (struct scsi_control_page *) 6088 (page_index->page_data + (page_index->page_len * 6089 CTL_PAGE_CURRENT)); 6090 saved_cp = (struct scsi_control_page *) 6091 (page_index->page_data + (page_index->page_len * 6092 CTL_PAGE_SAVED)); 6093 6094 softc = control_softc; 6095 6096 mtx_lock(&lun->lun_lock); 6097 if (((current_cp->rlec & SCP_DSENSE) == 0) 6098 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 6099 /* 6100 * Descriptor sense is currently turned off and the user 6101 * wants to turn it on. 6102 */ 6103 current_cp->rlec |= SCP_DSENSE; 6104 saved_cp->rlec |= SCP_DSENSE; 6105 lun->flags |= CTL_LUN_SENSE_DESC; 6106 set_ua = 1; 6107 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 6108 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 6109 /* 6110 * Descriptor sense is currently turned on, and the user 6111 * wants to turn it off. 6112 */ 6113 current_cp->rlec &= ~SCP_DSENSE; 6114 saved_cp->rlec &= ~SCP_DSENSE; 6115 lun->flags &= ~CTL_LUN_SENSE_DESC; 6116 set_ua = 1; 6117 } 6118 if ((current_cp->queue_flags & SCP_QUEUE_ALG_MASK) != 6119 (user_cp->queue_flags & SCP_QUEUE_ALG_MASK)) { 6120 current_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6121 current_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6122 saved_cp->queue_flags &= ~SCP_QUEUE_ALG_MASK; 6123 saved_cp->queue_flags |= user_cp->queue_flags & SCP_QUEUE_ALG_MASK; 6124 set_ua = 1; 6125 } 6126 if ((current_cp->eca_and_aen & SCP_SWP) != 6127 (user_cp->eca_and_aen & SCP_SWP)) { 6128 current_cp->eca_and_aen &= ~SCP_SWP; 6129 current_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6130 saved_cp->eca_and_aen &= ~SCP_SWP; 6131 saved_cp->eca_and_aen |= user_cp->eca_and_aen & SCP_SWP; 6132 set_ua = 1; 6133 } 6134 if (set_ua != 0) 6135 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 6136 mtx_unlock(&lun->lun_lock); 6137 6138 return (0); 6139 } 6140 6141 int 6142 ctl_caching_sp_handler(struct ctl_scsiio *ctsio, 6143 struct ctl_page_index *page_index, uint8_t *page_ptr) 6144 { 6145 struct scsi_caching_page *current_cp, *saved_cp, *user_cp; 6146 struct ctl_lun *lun; 6147 int set_ua; 6148 uint32_t initidx; 6149 6150 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6151 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6152 set_ua = 0; 6153 6154 user_cp = (struct scsi_caching_page *)page_ptr; 6155 current_cp = (struct scsi_caching_page *) 6156 (page_index->page_data + (page_index->page_len * 6157 CTL_PAGE_CURRENT)); 6158 saved_cp = (struct scsi_caching_page *) 6159 (page_index->page_data + (page_index->page_len * 6160 CTL_PAGE_SAVED)); 6161 6162 mtx_lock(&lun->lun_lock); 6163 if ((current_cp->flags1 & (SCP_WCE | SCP_RCD)) != 6164 (user_cp->flags1 & (SCP_WCE | SCP_RCD))) { 6165 current_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6166 current_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6167 saved_cp->flags1 &= ~(SCP_WCE | SCP_RCD); 6168 saved_cp->flags1 |= user_cp->flags1 & (SCP_WCE | SCP_RCD); 6169 set_ua = 1; 6170 } 6171 if (set_ua != 0) 6172 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 6173 mtx_unlock(&lun->lun_lock); 6174 6175 return (0); 6176 } 6177 6178 int 6179 ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 6180 struct ctl_page_index *page_index, 6181 uint8_t *page_ptr) 6182 { 6183 uint8_t *c; 6184 int i; 6185 6186 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 6187 ctl_time_io_secs = 6188 (c[0] << 8) | 6189 (c[1] << 0) | 6190 0; 6191 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 6192 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 6193 printf("page data:"); 6194 for (i=0; i<8; i++) 6195 printf(" %.2x",page_ptr[i]); 6196 printf("\n"); 6197 return (0); 6198 } 6199 6200 int 6201 ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 6202 struct ctl_page_index *page_index, 6203 int pc) 6204 { 6205 struct copan_debugconf_subpage *page; 6206 6207 page = (struct copan_debugconf_subpage *)page_index->page_data + 6208 (page_index->page_len * pc); 6209 6210 switch (pc) { 6211 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6212 case SMS_PAGE_CTRL_DEFAULT >> 6: 6213 case SMS_PAGE_CTRL_SAVED >> 6: 6214 /* 6215 * We don't update the changable or default bits for this page. 6216 */ 6217 break; 6218 case SMS_PAGE_CTRL_CURRENT >> 6: 6219 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 6220 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 6221 break; 6222 default: 6223 #ifdef NEEDTOPORT 6224 EPRINT(0, "Invalid PC %d!!", pc); 6225 #endif /* NEEDTOPORT */ 6226 break; 6227 } 6228 return (0); 6229 } 6230 6231 6232 static int 6233 ctl_do_mode_select(union ctl_io *io) 6234 { 6235 struct scsi_mode_page_header *page_header; 6236 struct ctl_page_index *page_index; 6237 struct ctl_scsiio *ctsio; 6238 int control_dev, page_len; 6239 int page_len_offset, page_len_size; 6240 union ctl_modepage_info *modepage_info; 6241 struct ctl_lun *lun; 6242 int *len_left, *len_used; 6243 int retval, i; 6244 6245 ctsio = &io->scsiio; 6246 page_index = NULL; 6247 page_len = 0; 6248 retval = CTL_RETVAL_COMPLETE; 6249 6250 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6251 6252 if (lun->be_lun->lun_type != T_DIRECT) 6253 control_dev = 1; 6254 else 6255 control_dev = 0; 6256 6257 modepage_info = (union ctl_modepage_info *) 6258 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6259 len_left = &modepage_info->header.len_left; 6260 len_used = &modepage_info->header.len_used; 6261 6262 do_next_page: 6263 6264 page_header = (struct scsi_mode_page_header *) 6265 (ctsio->kern_data_ptr + *len_used); 6266 6267 if (*len_left == 0) { 6268 free(ctsio->kern_data_ptr, M_CTL); 6269 ctl_set_success(ctsio); 6270 ctl_done((union ctl_io *)ctsio); 6271 return (CTL_RETVAL_COMPLETE); 6272 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6273 6274 free(ctsio->kern_data_ptr, M_CTL); 6275 ctl_set_param_len_error(ctsio); 6276 ctl_done((union ctl_io *)ctsio); 6277 return (CTL_RETVAL_COMPLETE); 6278 6279 } else if ((page_header->page_code & SMPH_SPF) 6280 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6281 6282 free(ctsio->kern_data_ptr, M_CTL); 6283 ctl_set_param_len_error(ctsio); 6284 ctl_done((union ctl_io *)ctsio); 6285 return (CTL_RETVAL_COMPLETE); 6286 } 6287 6288 6289 /* 6290 * XXX KDM should we do something with the block descriptor? 6291 */ 6292 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6293 6294 if ((control_dev != 0) 6295 && (lun->mode_pages.index[i].page_flags & 6296 CTL_PAGE_FLAG_DISK_ONLY)) 6297 continue; 6298 6299 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 6300 (page_header->page_code & SMPH_PC_MASK)) 6301 continue; 6302 6303 /* 6304 * If neither page has a subpage code, then we've got a 6305 * match. 6306 */ 6307 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 6308 && ((page_header->page_code & SMPH_SPF) == 0)) { 6309 page_index = &lun->mode_pages.index[i]; 6310 page_len = page_header->page_length; 6311 break; 6312 } 6313 6314 /* 6315 * If both pages have subpages, then the subpage numbers 6316 * have to match. 6317 */ 6318 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 6319 && (page_header->page_code & SMPH_SPF)) { 6320 struct scsi_mode_page_header_sp *sph; 6321 6322 sph = (struct scsi_mode_page_header_sp *)page_header; 6323 6324 if (lun->mode_pages.index[i].subpage == 6325 sph->subpage) { 6326 page_index = &lun->mode_pages.index[i]; 6327 page_len = scsi_2btoul(sph->page_length); 6328 break; 6329 } 6330 } 6331 } 6332 6333 /* 6334 * If we couldn't find the page, or if we don't have a mode select 6335 * handler for it, send back an error to the user. 6336 */ 6337 if ((page_index == NULL) 6338 || (page_index->select_handler == NULL)) { 6339 ctl_set_invalid_field(ctsio, 6340 /*sks_valid*/ 1, 6341 /*command*/ 0, 6342 /*field*/ *len_used, 6343 /*bit_valid*/ 0, 6344 /*bit*/ 0); 6345 free(ctsio->kern_data_ptr, M_CTL); 6346 ctl_done((union ctl_io *)ctsio); 6347 return (CTL_RETVAL_COMPLETE); 6348 } 6349 6350 if (page_index->page_code & SMPH_SPF) { 6351 page_len_offset = 2; 6352 page_len_size = 2; 6353 } else { 6354 page_len_size = 1; 6355 page_len_offset = 1; 6356 } 6357 6358 /* 6359 * If the length the initiator gives us isn't the one we specify in 6360 * the mode page header, or if they didn't specify enough data in 6361 * the CDB to avoid truncating this page, kick out the request. 6362 */ 6363 if ((page_len != (page_index->page_len - page_len_offset - 6364 page_len_size)) 6365 || (*len_left < page_index->page_len)) { 6366 6367 6368 ctl_set_invalid_field(ctsio, 6369 /*sks_valid*/ 1, 6370 /*command*/ 0, 6371 /*field*/ *len_used + page_len_offset, 6372 /*bit_valid*/ 0, 6373 /*bit*/ 0); 6374 free(ctsio->kern_data_ptr, M_CTL); 6375 ctl_done((union ctl_io *)ctsio); 6376 return (CTL_RETVAL_COMPLETE); 6377 } 6378 6379 /* 6380 * Run through the mode page, checking to make sure that the bits 6381 * the user changed are actually legal for him to change. 6382 */ 6383 for (i = 0; i < page_index->page_len; i++) { 6384 uint8_t *user_byte, *change_mask, *current_byte; 6385 int bad_bit; 6386 int j; 6387 6388 user_byte = (uint8_t *)page_header + i; 6389 change_mask = page_index->page_data + 6390 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6391 current_byte = page_index->page_data + 6392 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6393 6394 /* 6395 * Check to see whether the user set any bits in this byte 6396 * that he is not allowed to set. 6397 */ 6398 if ((*user_byte & ~(*change_mask)) == 6399 (*current_byte & ~(*change_mask))) 6400 continue; 6401 6402 /* 6403 * Go through bit by bit to determine which one is illegal. 6404 */ 6405 bad_bit = 0; 6406 for (j = 7; j >= 0; j--) { 6407 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6408 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6409 bad_bit = i; 6410 break; 6411 } 6412 } 6413 ctl_set_invalid_field(ctsio, 6414 /*sks_valid*/ 1, 6415 /*command*/ 0, 6416 /*field*/ *len_used + i, 6417 /*bit_valid*/ 1, 6418 /*bit*/ bad_bit); 6419 free(ctsio->kern_data_ptr, M_CTL); 6420 ctl_done((union ctl_io *)ctsio); 6421 return (CTL_RETVAL_COMPLETE); 6422 } 6423 6424 /* 6425 * Decrement these before we call the page handler, since we may 6426 * end up getting called back one way or another before the handler 6427 * returns to this context. 6428 */ 6429 *len_left -= page_index->page_len; 6430 *len_used += page_index->page_len; 6431 6432 retval = page_index->select_handler(ctsio, page_index, 6433 (uint8_t *)page_header); 6434 6435 /* 6436 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6437 * wait until this queued command completes to finish processing 6438 * the mode page. If it returns anything other than 6439 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6440 * already set the sense information, freed the data pointer, and 6441 * completed the io for us. 6442 */ 6443 if (retval != CTL_RETVAL_COMPLETE) 6444 goto bailout_no_done; 6445 6446 /* 6447 * If the initiator sent us more than one page, parse the next one. 6448 */ 6449 if (*len_left > 0) 6450 goto do_next_page; 6451 6452 ctl_set_success(ctsio); 6453 free(ctsio->kern_data_ptr, M_CTL); 6454 ctl_done((union ctl_io *)ctsio); 6455 6456 bailout_no_done: 6457 6458 return (CTL_RETVAL_COMPLETE); 6459 6460 } 6461 6462 int 6463 ctl_mode_select(struct ctl_scsiio *ctsio) 6464 { 6465 int param_len, pf, sp; 6466 int header_size, bd_len; 6467 int len_left, len_used; 6468 struct ctl_page_index *page_index; 6469 struct ctl_lun *lun; 6470 int control_dev, page_len; 6471 union ctl_modepage_info *modepage_info; 6472 int retval; 6473 6474 pf = 0; 6475 sp = 0; 6476 page_len = 0; 6477 len_used = 0; 6478 len_left = 0; 6479 retval = 0; 6480 bd_len = 0; 6481 page_index = NULL; 6482 6483 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6484 6485 if (lun->be_lun->lun_type != T_DIRECT) 6486 control_dev = 1; 6487 else 6488 control_dev = 0; 6489 6490 switch (ctsio->cdb[0]) { 6491 case MODE_SELECT_6: { 6492 struct scsi_mode_select_6 *cdb; 6493 6494 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6495 6496 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6497 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6498 6499 param_len = cdb->length; 6500 header_size = sizeof(struct scsi_mode_header_6); 6501 break; 6502 } 6503 case MODE_SELECT_10: { 6504 struct scsi_mode_select_10 *cdb; 6505 6506 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6507 6508 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6509 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6510 6511 param_len = scsi_2btoul(cdb->length); 6512 header_size = sizeof(struct scsi_mode_header_10); 6513 break; 6514 } 6515 default: 6516 ctl_set_invalid_opcode(ctsio); 6517 ctl_done((union ctl_io *)ctsio); 6518 return (CTL_RETVAL_COMPLETE); 6519 break; /* NOTREACHED */ 6520 } 6521 6522 /* 6523 * From SPC-3: 6524 * "A parameter list length of zero indicates that the Data-Out Buffer 6525 * shall be empty. This condition shall not be considered as an error." 6526 */ 6527 if (param_len == 0) { 6528 ctl_set_success(ctsio); 6529 ctl_done((union ctl_io *)ctsio); 6530 return (CTL_RETVAL_COMPLETE); 6531 } 6532 6533 /* 6534 * Since we'll hit this the first time through, prior to 6535 * allocation, we don't need to free a data buffer here. 6536 */ 6537 if (param_len < header_size) { 6538 ctl_set_param_len_error(ctsio); 6539 ctl_done((union ctl_io *)ctsio); 6540 return (CTL_RETVAL_COMPLETE); 6541 } 6542 6543 /* 6544 * Allocate the data buffer and grab the user's data. In theory, 6545 * we shouldn't have to sanity check the parameter list length here 6546 * because the maximum size is 64K. We should be able to malloc 6547 * that much without too many problems. 6548 */ 6549 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6550 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6551 ctsio->kern_data_len = param_len; 6552 ctsio->kern_total_len = param_len; 6553 ctsio->kern_data_resid = 0; 6554 ctsio->kern_rel_offset = 0; 6555 ctsio->kern_sg_entries = 0; 6556 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6557 ctsio->be_move_done = ctl_config_move_done; 6558 ctl_datamove((union ctl_io *)ctsio); 6559 6560 return (CTL_RETVAL_COMPLETE); 6561 } 6562 6563 switch (ctsio->cdb[0]) { 6564 case MODE_SELECT_6: { 6565 struct scsi_mode_header_6 *mh6; 6566 6567 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6568 bd_len = mh6->blk_desc_len; 6569 break; 6570 } 6571 case MODE_SELECT_10: { 6572 struct scsi_mode_header_10 *mh10; 6573 6574 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6575 bd_len = scsi_2btoul(mh10->blk_desc_len); 6576 break; 6577 } 6578 default: 6579 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6580 break; 6581 } 6582 6583 if (param_len < (header_size + bd_len)) { 6584 free(ctsio->kern_data_ptr, M_CTL); 6585 ctl_set_param_len_error(ctsio); 6586 ctl_done((union ctl_io *)ctsio); 6587 return (CTL_RETVAL_COMPLETE); 6588 } 6589 6590 /* 6591 * Set the IO_CONT flag, so that if this I/O gets passed to 6592 * ctl_config_write_done(), it'll get passed back to 6593 * ctl_do_mode_select() for further processing, or completion if 6594 * we're all done. 6595 */ 6596 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6597 ctsio->io_cont = ctl_do_mode_select; 6598 6599 modepage_info = (union ctl_modepage_info *) 6600 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6601 6602 memset(modepage_info, 0, sizeof(*modepage_info)); 6603 6604 len_left = param_len - header_size - bd_len; 6605 len_used = header_size + bd_len; 6606 6607 modepage_info->header.len_left = len_left; 6608 modepage_info->header.len_used = len_used; 6609 6610 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6611 } 6612 6613 int 6614 ctl_mode_sense(struct ctl_scsiio *ctsio) 6615 { 6616 struct ctl_lun *lun; 6617 int pc, page_code, dbd, llba, subpage; 6618 int alloc_len, page_len, header_len, total_len; 6619 struct scsi_mode_block_descr *block_desc; 6620 struct ctl_page_index *page_index; 6621 int control_dev; 6622 6623 dbd = 0; 6624 llba = 0; 6625 block_desc = NULL; 6626 page_index = NULL; 6627 6628 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6629 6630 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6631 6632 if (lun->be_lun->lun_type != T_DIRECT) 6633 control_dev = 1; 6634 else 6635 control_dev = 0; 6636 6637 switch (ctsio->cdb[0]) { 6638 case MODE_SENSE_6: { 6639 struct scsi_mode_sense_6 *cdb; 6640 6641 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6642 6643 header_len = sizeof(struct scsi_mode_hdr_6); 6644 if (cdb->byte2 & SMS_DBD) 6645 dbd = 1; 6646 else 6647 header_len += sizeof(struct scsi_mode_block_descr); 6648 6649 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6650 page_code = cdb->page & SMS_PAGE_CODE; 6651 subpage = cdb->subpage; 6652 alloc_len = cdb->length; 6653 break; 6654 } 6655 case MODE_SENSE_10: { 6656 struct scsi_mode_sense_10 *cdb; 6657 6658 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6659 6660 header_len = sizeof(struct scsi_mode_hdr_10); 6661 6662 if (cdb->byte2 & SMS_DBD) 6663 dbd = 1; 6664 else 6665 header_len += sizeof(struct scsi_mode_block_descr); 6666 if (cdb->byte2 & SMS10_LLBAA) 6667 llba = 1; 6668 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6669 page_code = cdb->page & SMS_PAGE_CODE; 6670 subpage = cdb->subpage; 6671 alloc_len = scsi_2btoul(cdb->length); 6672 break; 6673 } 6674 default: 6675 ctl_set_invalid_opcode(ctsio); 6676 ctl_done((union ctl_io *)ctsio); 6677 return (CTL_RETVAL_COMPLETE); 6678 break; /* NOTREACHED */ 6679 } 6680 6681 /* 6682 * We have to make a first pass through to calculate the size of 6683 * the pages that match the user's query. Then we allocate enough 6684 * memory to hold it, and actually copy the data into the buffer. 6685 */ 6686 switch (page_code) { 6687 case SMS_ALL_PAGES_PAGE: { 6688 int i; 6689 6690 page_len = 0; 6691 6692 /* 6693 * At the moment, values other than 0 and 0xff here are 6694 * reserved according to SPC-3. 6695 */ 6696 if ((subpage != SMS_SUBPAGE_PAGE_0) 6697 && (subpage != SMS_SUBPAGE_ALL)) { 6698 ctl_set_invalid_field(ctsio, 6699 /*sks_valid*/ 1, 6700 /*command*/ 1, 6701 /*field*/ 3, 6702 /*bit_valid*/ 0, 6703 /*bit*/ 0); 6704 ctl_done((union ctl_io *)ctsio); 6705 return (CTL_RETVAL_COMPLETE); 6706 } 6707 6708 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6709 if ((control_dev != 0) 6710 && (lun->mode_pages.index[i].page_flags & 6711 CTL_PAGE_FLAG_DISK_ONLY)) 6712 continue; 6713 6714 /* 6715 * We don't use this subpage if the user didn't 6716 * request all subpages. 6717 */ 6718 if ((lun->mode_pages.index[i].subpage != 0) 6719 && (subpage == SMS_SUBPAGE_PAGE_0)) 6720 continue; 6721 6722 #if 0 6723 printf("found page %#x len %d\n", 6724 lun->mode_pages.index[i].page_code & 6725 SMPH_PC_MASK, 6726 lun->mode_pages.index[i].page_len); 6727 #endif 6728 page_len += lun->mode_pages.index[i].page_len; 6729 } 6730 break; 6731 } 6732 default: { 6733 int i; 6734 6735 page_len = 0; 6736 6737 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6738 /* Look for the right page code */ 6739 if ((lun->mode_pages.index[i].page_code & 6740 SMPH_PC_MASK) != page_code) 6741 continue; 6742 6743 /* Look for the right subpage or the subpage wildcard*/ 6744 if ((lun->mode_pages.index[i].subpage != subpage) 6745 && (subpage != SMS_SUBPAGE_ALL)) 6746 continue; 6747 6748 /* Make sure the page is supported for this dev type */ 6749 if ((control_dev != 0) 6750 && (lun->mode_pages.index[i].page_flags & 6751 CTL_PAGE_FLAG_DISK_ONLY)) 6752 continue; 6753 6754 #if 0 6755 printf("found page %#x len %d\n", 6756 lun->mode_pages.index[i].page_code & 6757 SMPH_PC_MASK, 6758 lun->mode_pages.index[i].page_len); 6759 #endif 6760 6761 page_len += lun->mode_pages.index[i].page_len; 6762 } 6763 6764 if (page_len == 0) { 6765 ctl_set_invalid_field(ctsio, 6766 /*sks_valid*/ 1, 6767 /*command*/ 1, 6768 /*field*/ 2, 6769 /*bit_valid*/ 1, 6770 /*bit*/ 5); 6771 ctl_done((union ctl_io *)ctsio); 6772 return (CTL_RETVAL_COMPLETE); 6773 } 6774 break; 6775 } 6776 } 6777 6778 total_len = header_len + page_len; 6779 #if 0 6780 printf("header_len = %d, page_len = %d, total_len = %d\n", 6781 header_len, page_len, total_len); 6782 #endif 6783 6784 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6785 ctsio->kern_sg_entries = 0; 6786 ctsio->kern_data_resid = 0; 6787 ctsio->kern_rel_offset = 0; 6788 if (total_len < alloc_len) { 6789 ctsio->residual = alloc_len - total_len; 6790 ctsio->kern_data_len = total_len; 6791 ctsio->kern_total_len = total_len; 6792 } else { 6793 ctsio->residual = 0; 6794 ctsio->kern_data_len = alloc_len; 6795 ctsio->kern_total_len = alloc_len; 6796 } 6797 6798 switch (ctsio->cdb[0]) { 6799 case MODE_SENSE_6: { 6800 struct scsi_mode_hdr_6 *header; 6801 6802 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6803 6804 header->datalen = ctl_min(total_len - 1, 254); 6805 if (control_dev == 0) { 6806 header->dev_specific = 0x10; /* DPOFUA */ 6807 if ((lun->flags & CTL_LUN_READONLY) || 6808 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6809 .eca_and_aen & SCP_SWP) != 0) 6810 header->dev_specific |= 0x80; /* WP */ 6811 } 6812 if (dbd) 6813 header->block_descr_len = 0; 6814 else 6815 header->block_descr_len = 6816 sizeof(struct scsi_mode_block_descr); 6817 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6818 break; 6819 } 6820 case MODE_SENSE_10: { 6821 struct scsi_mode_hdr_10 *header; 6822 int datalen; 6823 6824 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6825 6826 datalen = ctl_min(total_len - 2, 65533); 6827 scsi_ulto2b(datalen, header->datalen); 6828 if (control_dev == 0) { 6829 header->dev_specific = 0x10; /* DPOFUA */ 6830 if ((lun->flags & CTL_LUN_READONLY) || 6831 (lun->mode_pages.control_page[CTL_PAGE_CURRENT] 6832 .eca_and_aen & SCP_SWP) != 0) 6833 header->dev_specific |= 0x80; /* WP */ 6834 } 6835 if (dbd) 6836 scsi_ulto2b(0, header->block_descr_len); 6837 else 6838 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 6839 header->block_descr_len); 6840 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6841 break; 6842 } 6843 default: 6844 panic("invalid CDB type %#x", ctsio->cdb[0]); 6845 break; /* NOTREACHED */ 6846 } 6847 6848 /* 6849 * If we've got a disk, use its blocksize in the block 6850 * descriptor. Otherwise, just set it to 0. 6851 */ 6852 if (dbd == 0) { 6853 if (control_dev == 0) 6854 scsi_ulto3b(lun->be_lun->blocksize, 6855 block_desc->block_len); 6856 else 6857 scsi_ulto3b(0, block_desc->block_len); 6858 } 6859 6860 switch (page_code) { 6861 case SMS_ALL_PAGES_PAGE: { 6862 int i, data_used; 6863 6864 data_used = header_len; 6865 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6866 struct ctl_page_index *page_index; 6867 6868 page_index = &lun->mode_pages.index[i]; 6869 6870 if ((control_dev != 0) 6871 && (page_index->page_flags & 6872 CTL_PAGE_FLAG_DISK_ONLY)) 6873 continue; 6874 6875 /* 6876 * We don't use this subpage if the user didn't 6877 * request all subpages. We already checked (above) 6878 * to make sure the user only specified a subpage 6879 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 6880 */ 6881 if ((page_index->subpage != 0) 6882 && (subpage == SMS_SUBPAGE_PAGE_0)) 6883 continue; 6884 6885 /* 6886 * Call the handler, if it exists, to update the 6887 * page to the latest values. 6888 */ 6889 if (page_index->sense_handler != NULL) 6890 page_index->sense_handler(ctsio, page_index,pc); 6891 6892 memcpy(ctsio->kern_data_ptr + data_used, 6893 page_index->page_data + 6894 (page_index->page_len * pc), 6895 page_index->page_len); 6896 data_used += page_index->page_len; 6897 } 6898 break; 6899 } 6900 default: { 6901 int i, data_used; 6902 6903 data_used = header_len; 6904 6905 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6906 struct ctl_page_index *page_index; 6907 6908 page_index = &lun->mode_pages.index[i]; 6909 6910 /* Look for the right page code */ 6911 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6912 continue; 6913 6914 /* Look for the right subpage or the subpage wildcard*/ 6915 if ((page_index->subpage != subpage) 6916 && (subpage != SMS_SUBPAGE_ALL)) 6917 continue; 6918 6919 /* Make sure the page is supported for this dev type */ 6920 if ((control_dev != 0) 6921 && (page_index->page_flags & 6922 CTL_PAGE_FLAG_DISK_ONLY)) 6923 continue; 6924 6925 /* 6926 * Call the handler, if it exists, to update the 6927 * page to the latest values. 6928 */ 6929 if (page_index->sense_handler != NULL) 6930 page_index->sense_handler(ctsio, page_index,pc); 6931 6932 memcpy(ctsio->kern_data_ptr + data_used, 6933 page_index->page_data + 6934 (page_index->page_len * pc), 6935 page_index->page_len); 6936 data_used += page_index->page_len; 6937 } 6938 break; 6939 } 6940 } 6941 6942 ctl_set_success(ctsio); 6943 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6944 ctsio->be_move_done = ctl_config_move_done; 6945 ctl_datamove((union ctl_io *)ctsio); 6946 return (CTL_RETVAL_COMPLETE); 6947 } 6948 6949 int 6950 ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio, 6951 struct ctl_page_index *page_index, 6952 int pc) 6953 { 6954 struct ctl_lun *lun; 6955 struct scsi_log_param_header *phdr; 6956 uint8_t *data; 6957 uint64_t val; 6958 6959 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6960 data = page_index->page_data; 6961 6962 if (lun->backend->lun_attr != NULL && 6963 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksavail")) 6964 != UINT64_MAX) { 6965 phdr = (struct scsi_log_param_header *)data; 6966 scsi_ulto2b(0x0001, phdr->param_code); 6967 phdr->param_control = SLP_LBIN | SLP_LP; 6968 phdr->param_len = 8; 6969 data = (uint8_t *)(phdr + 1); 6970 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6971 data[4] = 0x02; /* per-pool */ 6972 data += phdr->param_len; 6973 } 6974 6975 if (lun->backend->lun_attr != NULL && 6976 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksused")) 6977 != UINT64_MAX) { 6978 phdr = (struct scsi_log_param_header *)data; 6979 scsi_ulto2b(0x0002, phdr->param_code); 6980 phdr->param_control = SLP_LBIN | SLP_LP; 6981 phdr->param_len = 8; 6982 data = (uint8_t *)(phdr + 1); 6983 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6984 data[4] = 0x01; /* per-LUN */ 6985 data += phdr->param_len; 6986 } 6987 6988 if (lun->backend->lun_attr != NULL && 6989 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksavail")) 6990 != UINT64_MAX) { 6991 phdr = (struct scsi_log_param_header *)data; 6992 scsi_ulto2b(0x00f1, phdr->param_code); 6993 phdr->param_control = SLP_LBIN | SLP_LP; 6994 phdr->param_len = 8; 6995 data = (uint8_t *)(phdr + 1); 6996 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6997 data[4] = 0x02; /* per-pool */ 6998 data += phdr->param_len; 6999 } 7000 7001 if (lun->backend->lun_attr != NULL && 7002 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksused")) 7003 != UINT64_MAX) { 7004 phdr = (struct scsi_log_param_header *)data; 7005 scsi_ulto2b(0x00f2, phdr->param_code); 7006 phdr->param_control = SLP_LBIN | SLP_LP; 7007 phdr->param_len = 8; 7008 data = (uint8_t *)(phdr + 1); 7009 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 7010 data[4] = 0x02; /* per-pool */ 7011 data += phdr->param_len; 7012 } 7013 7014 page_index->page_len = data - page_index->page_data; 7015 return (0); 7016 } 7017 7018 int 7019 ctl_log_sense(struct ctl_scsiio *ctsio) 7020 { 7021 struct ctl_lun *lun; 7022 int i, pc, page_code, subpage; 7023 int alloc_len, total_len; 7024 struct ctl_page_index *page_index; 7025 struct scsi_log_sense *cdb; 7026 struct scsi_log_header *header; 7027 7028 CTL_DEBUG_PRINT(("ctl_log_sense\n")); 7029 7030 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7031 cdb = (struct scsi_log_sense *)ctsio->cdb; 7032 pc = (cdb->page & SLS_PAGE_CTRL_MASK) >> 6; 7033 page_code = cdb->page & SLS_PAGE_CODE; 7034 subpage = cdb->subpage; 7035 alloc_len = scsi_2btoul(cdb->length); 7036 7037 page_index = NULL; 7038 for (i = 0; i < CTL_NUM_LOG_PAGES; i++) { 7039 page_index = &lun->log_pages.index[i]; 7040 7041 /* Look for the right page code */ 7042 if ((page_index->page_code & SL_PAGE_CODE) != page_code) 7043 continue; 7044 7045 /* Look for the right subpage or the subpage wildcard*/ 7046 if (page_index->subpage != subpage) 7047 continue; 7048 7049 break; 7050 } 7051 if (i >= CTL_NUM_LOG_PAGES) { 7052 ctl_set_invalid_field(ctsio, 7053 /*sks_valid*/ 1, 7054 /*command*/ 1, 7055 /*field*/ 2, 7056 /*bit_valid*/ 0, 7057 /*bit*/ 0); 7058 ctl_done((union ctl_io *)ctsio); 7059 return (CTL_RETVAL_COMPLETE); 7060 } 7061 7062 total_len = sizeof(struct scsi_log_header) + page_index->page_len; 7063 7064 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7065 ctsio->kern_sg_entries = 0; 7066 ctsio->kern_data_resid = 0; 7067 ctsio->kern_rel_offset = 0; 7068 if (total_len < alloc_len) { 7069 ctsio->residual = alloc_len - total_len; 7070 ctsio->kern_data_len = total_len; 7071 ctsio->kern_total_len = total_len; 7072 } else { 7073 ctsio->residual = 0; 7074 ctsio->kern_data_len = alloc_len; 7075 ctsio->kern_total_len = alloc_len; 7076 } 7077 7078 header = (struct scsi_log_header *)ctsio->kern_data_ptr; 7079 header->page = page_index->page_code; 7080 if (page_index->subpage) { 7081 header->page |= SL_SPF; 7082 header->subpage = page_index->subpage; 7083 } 7084 scsi_ulto2b(page_index->page_len, header->datalen); 7085 7086 /* 7087 * Call the handler, if it exists, to update the 7088 * page to the latest values. 7089 */ 7090 if (page_index->sense_handler != NULL) 7091 page_index->sense_handler(ctsio, page_index, pc); 7092 7093 memcpy(header + 1, page_index->page_data, page_index->page_len); 7094 7095 ctl_set_success(ctsio); 7096 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7097 ctsio->be_move_done = ctl_config_move_done; 7098 ctl_datamove((union ctl_io *)ctsio); 7099 return (CTL_RETVAL_COMPLETE); 7100 } 7101 7102 int 7103 ctl_read_capacity(struct ctl_scsiio *ctsio) 7104 { 7105 struct scsi_read_capacity *cdb; 7106 struct scsi_read_capacity_data *data; 7107 struct ctl_lun *lun; 7108 uint32_t lba; 7109 7110 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 7111 7112 cdb = (struct scsi_read_capacity *)ctsio->cdb; 7113 7114 lba = scsi_4btoul(cdb->addr); 7115 if (((cdb->pmi & SRC_PMI) == 0) 7116 && (lba != 0)) { 7117 ctl_set_invalid_field(/*ctsio*/ ctsio, 7118 /*sks_valid*/ 1, 7119 /*command*/ 1, 7120 /*field*/ 2, 7121 /*bit_valid*/ 0, 7122 /*bit*/ 0); 7123 ctl_done((union ctl_io *)ctsio); 7124 return (CTL_RETVAL_COMPLETE); 7125 } 7126 7127 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7128 7129 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7130 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 7131 ctsio->residual = 0; 7132 ctsio->kern_data_len = sizeof(*data); 7133 ctsio->kern_total_len = sizeof(*data); 7134 ctsio->kern_data_resid = 0; 7135 ctsio->kern_rel_offset = 0; 7136 ctsio->kern_sg_entries = 0; 7137 7138 /* 7139 * If the maximum LBA is greater than 0xfffffffe, the user must 7140 * issue a SERVICE ACTION IN (16) command, with the read capacity 7141 * serivce action set. 7142 */ 7143 if (lun->be_lun->maxlba > 0xfffffffe) 7144 scsi_ulto4b(0xffffffff, data->addr); 7145 else 7146 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 7147 7148 /* 7149 * XXX KDM this may not be 512 bytes... 7150 */ 7151 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7152 7153 ctl_set_success(ctsio); 7154 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7155 ctsio->be_move_done = ctl_config_move_done; 7156 ctl_datamove((union ctl_io *)ctsio); 7157 return (CTL_RETVAL_COMPLETE); 7158 } 7159 7160 int 7161 ctl_read_capacity_16(struct ctl_scsiio *ctsio) 7162 { 7163 struct scsi_read_capacity_16 *cdb; 7164 struct scsi_read_capacity_data_long *data; 7165 struct ctl_lun *lun; 7166 uint64_t lba; 7167 uint32_t alloc_len; 7168 7169 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 7170 7171 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 7172 7173 alloc_len = scsi_4btoul(cdb->alloc_len); 7174 lba = scsi_8btou64(cdb->addr); 7175 7176 if ((cdb->reladr & SRC16_PMI) 7177 && (lba != 0)) { 7178 ctl_set_invalid_field(/*ctsio*/ ctsio, 7179 /*sks_valid*/ 1, 7180 /*command*/ 1, 7181 /*field*/ 2, 7182 /*bit_valid*/ 0, 7183 /*bit*/ 0); 7184 ctl_done((union ctl_io *)ctsio); 7185 return (CTL_RETVAL_COMPLETE); 7186 } 7187 7188 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7189 7190 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7191 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 7192 7193 if (sizeof(*data) < alloc_len) { 7194 ctsio->residual = alloc_len - sizeof(*data); 7195 ctsio->kern_data_len = sizeof(*data); 7196 ctsio->kern_total_len = sizeof(*data); 7197 } else { 7198 ctsio->residual = 0; 7199 ctsio->kern_data_len = alloc_len; 7200 ctsio->kern_total_len = alloc_len; 7201 } 7202 ctsio->kern_data_resid = 0; 7203 ctsio->kern_rel_offset = 0; 7204 ctsio->kern_sg_entries = 0; 7205 7206 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7207 /* XXX KDM this may not be 512 bytes... */ 7208 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7209 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7210 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7211 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7212 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 7213 7214 ctl_set_success(ctsio); 7215 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7216 ctsio->be_move_done = ctl_config_move_done; 7217 ctl_datamove((union ctl_io *)ctsio); 7218 return (CTL_RETVAL_COMPLETE); 7219 } 7220 7221 int 7222 ctl_get_lba_status(struct ctl_scsiio *ctsio) 7223 { 7224 struct scsi_get_lba_status *cdb; 7225 struct scsi_get_lba_status_data *data; 7226 struct ctl_lun *lun; 7227 struct ctl_lba_len_flags *lbalen; 7228 uint64_t lba; 7229 uint32_t alloc_len, total_len; 7230 int retval; 7231 7232 CTL_DEBUG_PRINT(("ctl_get_lba_status\n")); 7233 7234 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7235 cdb = (struct scsi_get_lba_status *)ctsio->cdb; 7236 lba = scsi_8btou64(cdb->addr); 7237 alloc_len = scsi_4btoul(cdb->alloc_len); 7238 7239 if (lba > lun->be_lun->maxlba) { 7240 ctl_set_lba_out_of_range(ctsio); 7241 ctl_done((union ctl_io *)ctsio); 7242 return (CTL_RETVAL_COMPLETE); 7243 } 7244 7245 total_len = sizeof(*data) + sizeof(data->descr[0]); 7246 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7247 data = (struct scsi_get_lba_status_data *)ctsio->kern_data_ptr; 7248 7249 if (total_len < alloc_len) { 7250 ctsio->residual = alloc_len - total_len; 7251 ctsio->kern_data_len = total_len; 7252 ctsio->kern_total_len = total_len; 7253 } else { 7254 ctsio->residual = 0; 7255 ctsio->kern_data_len = alloc_len; 7256 ctsio->kern_total_len = alloc_len; 7257 } 7258 ctsio->kern_data_resid = 0; 7259 ctsio->kern_rel_offset = 0; 7260 ctsio->kern_sg_entries = 0; 7261 7262 /* Fill dummy data in case backend can't tell anything. */ 7263 scsi_ulto4b(4 + sizeof(data->descr[0]), data->length); 7264 scsi_u64to8b(lba, data->descr[0].addr); 7265 scsi_ulto4b(MIN(UINT32_MAX, lun->be_lun->maxlba + 1 - lba), 7266 data->descr[0].length); 7267 data->descr[0].status = 0; /* Mapped or unknown. */ 7268 7269 ctl_set_success(ctsio); 7270 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7271 ctsio->be_move_done = ctl_config_move_done; 7272 7273 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 7274 lbalen->lba = lba; 7275 lbalen->len = total_len; 7276 lbalen->flags = 0; 7277 retval = lun->backend->config_read((union ctl_io *)ctsio); 7278 return (CTL_RETVAL_COMPLETE); 7279 } 7280 7281 int 7282 ctl_read_defect(struct ctl_scsiio *ctsio) 7283 { 7284 struct scsi_read_defect_data_10 *ccb10; 7285 struct scsi_read_defect_data_12 *ccb12; 7286 struct scsi_read_defect_data_hdr_10 *data10; 7287 struct scsi_read_defect_data_hdr_12 *data12; 7288 uint32_t alloc_len, data_len; 7289 uint8_t format; 7290 7291 CTL_DEBUG_PRINT(("ctl_read_defect\n")); 7292 7293 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7294 ccb10 = (struct scsi_read_defect_data_10 *)&ctsio->cdb; 7295 format = ccb10->format; 7296 alloc_len = scsi_2btoul(ccb10->alloc_length); 7297 data_len = sizeof(*data10); 7298 } else { 7299 ccb12 = (struct scsi_read_defect_data_12 *)&ctsio->cdb; 7300 format = ccb12->format; 7301 alloc_len = scsi_4btoul(ccb12->alloc_length); 7302 data_len = sizeof(*data12); 7303 } 7304 if (alloc_len == 0) { 7305 ctl_set_success(ctsio); 7306 ctl_done((union ctl_io *)ctsio); 7307 return (CTL_RETVAL_COMPLETE); 7308 } 7309 7310 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 7311 if (data_len < alloc_len) { 7312 ctsio->residual = alloc_len - data_len; 7313 ctsio->kern_data_len = data_len; 7314 ctsio->kern_total_len = data_len; 7315 } else { 7316 ctsio->residual = 0; 7317 ctsio->kern_data_len = alloc_len; 7318 ctsio->kern_total_len = alloc_len; 7319 } 7320 ctsio->kern_data_resid = 0; 7321 ctsio->kern_rel_offset = 0; 7322 ctsio->kern_sg_entries = 0; 7323 7324 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7325 data10 = (struct scsi_read_defect_data_hdr_10 *) 7326 ctsio->kern_data_ptr; 7327 data10->format = format; 7328 scsi_ulto2b(0, data10->length); 7329 } else { 7330 data12 = (struct scsi_read_defect_data_hdr_12 *) 7331 ctsio->kern_data_ptr; 7332 data12->format = format; 7333 scsi_ulto2b(0, data12->generation); 7334 scsi_ulto4b(0, data12->length); 7335 } 7336 7337 ctl_set_success(ctsio); 7338 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7339 ctsio->be_move_done = ctl_config_move_done; 7340 ctl_datamove((union ctl_io *)ctsio); 7341 return (CTL_RETVAL_COMPLETE); 7342 } 7343 7344 int 7345 ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7346 { 7347 struct scsi_maintenance_in *cdb; 7348 int retval; 7349 int alloc_len, ext, total_len = 0, g, p, pc, pg, gs, os; 7350 int num_target_port_groups, num_target_ports; 7351 struct ctl_lun *lun; 7352 struct ctl_softc *softc; 7353 struct ctl_port *port; 7354 struct scsi_target_group_data *rtg_ptr; 7355 struct scsi_target_group_data_extended *rtg_ext_ptr; 7356 struct scsi_target_port_group_descriptor *tpg_desc; 7357 7358 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7359 7360 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7361 softc = control_softc; 7362 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7363 7364 retval = CTL_RETVAL_COMPLETE; 7365 7366 switch (cdb->byte2 & STG_PDF_MASK) { 7367 case STG_PDF_LENGTH: 7368 ext = 0; 7369 break; 7370 case STG_PDF_EXTENDED: 7371 ext = 1; 7372 break; 7373 default: 7374 ctl_set_invalid_field(/*ctsio*/ ctsio, 7375 /*sks_valid*/ 1, 7376 /*command*/ 1, 7377 /*field*/ 2, 7378 /*bit_valid*/ 1, 7379 /*bit*/ 5); 7380 ctl_done((union ctl_io *)ctsio); 7381 return(retval); 7382 } 7383 7384 if (softc->is_single) 7385 num_target_port_groups = 1; 7386 else 7387 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7388 num_target_ports = 0; 7389 mtx_lock(&softc->ctl_lock); 7390 STAILQ_FOREACH(port, &softc->port_list, links) { 7391 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7392 continue; 7393 if (ctl_map_lun_back(port->targ_port, lun->lun) >= CTL_MAX_LUNS) 7394 continue; 7395 num_target_ports++; 7396 } 7397 mtx_unlock(&softc->ctl_lock); 7398 7399 if (ext) 7400 total_len = sizeof(struct scsi_target_group_data_extended); 7401 else 7402 total_len = sizeof(struct scsi_target_group_data); 7403 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7404 num_target_port_groups + 7405 sizeof(struct scsi_target_port_descriptor) * 7406 num_target_ports * num_target_port_groups; 7407 7408 alloc_len = scsi_4btoul(cdb->length); 7409 7410 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7411 7412 ctsio->kern_sg_entries = 0; 7413 7414 if (total_len < alloc_len) { 7415 ctsio->residual = alloc_len - total_len; 7416 ctsio->kern_data_len = total_len; 7417 ctsio->kern_total_len = total_len; 7418 } else { 7419 ctsio->residual = 0; 7420 ctsio->kern_data_len = alloc_len; 7421 ctsio->kern_total_len = alloc_len; 7422 } 7423 ctsio->kern_data_resid = 0; 7424 ctsio->kern_rel_offset = 0; 7425 7426 if (ext) { 7427 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7428 ctsio->kern_data_ptr; 7429 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7430 rtg_ext_ptr->format_type = 0x10; 7431 rtg_ext_ptr->implicit_transition_time = 0; 7432 tpg_desc = &rtg_ext_ptr->groups[0]; 7433 } else { 7434 rtg_ptr = (struct scsi_target_group_data *) 7435 ctsio->kern_data_ptr; 7436 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7437 tpg_desc = &rtg_ptr->groups[0]; 7438 } 7439 7440 mtx_lock(&softc->ctl_lock); 7441 pg = softc->port_offset / CTL_MAX_PORTS; 7442 if (softc->flags & CTL_FLAG_ACTIVE_SHELF) { 7443 if (softc->ha_mode == CTL_HA_MODE_ACT_STBY) { 7444 gs = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7445 os = TPG_ASYMMETRIC_ACCESS_STANDBY; 7446 } else if (lun->flags & CTL_LUN_PRIMARY_SC) { 7447 gs = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7448 os = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7449 } else { 7450 gs = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7451 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7452 } 7453 } else { 7454 gs = TPG_ASYMMETRIC_ACCESS_STANDBY; 7455 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7456 } 7457 for (g = 0; g < num_target_port_groups; g++) { 7458 tpg_desc->pref_state = (g == pg) ? gs : os; 7459 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP; 7460 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7461 tpg_desc->status = TPG_IMPLICIT; 7462 pc = 0; 7463 STAILQ_FOREACH(port, &softc->port_list, links) { 7464 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7465 continue; 7466 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 7467 CTL_MAX_LUNS) 7468 continue; 7469 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 7470 scsi_ulto2b(p, tpg_desc->descriptors[pc]. 7471 relative_target_port_identifier); 7472 pc++; 7473 } 7474 tpg_desc->target_port_count = pc; 7475 tpg_desc = (struct scsi_target_port_group_descriptor *) 7476 &tpg_desc->descriptors[pc]; 7477 } 7478 mtx_unlock(&softc->ctl_lock); 7479 7480 ctl_set_success(ctsio); 7481 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7482 ctsio->be_move_done = ctl_config_move_done; 7483 ctl_datamove((union ctl_io *)ctsio); 7484 return(retval); 7485 } 7486 7487 int 7488 ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7489 { 7490 struct ctl_lun *lun; 7491 struct scsi_report_supported_opcodes *cdb; 7492 const struct ctl_cmd_entry *entry, *sentry; 7493 struct scsi_report_supported_opcodes_all *all; 7494 struct scsi_report_supported_opcodes_descr *descr; 7495 struct scsi_report_supported_opcodes_one *one; 7496 int retval; 7497 int alloc_len, total_len; 7498 int opcode, service_action, i, j, num; 7499 7500 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7501 7502 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7503 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7504 7505 retval = CTL_RETVAL_COMPLETE; 7506 7507 opcode = cdb->requested_opcode; 7508 service_action = scsi_2btoul(cdb->requested_service_action); 7509 switch (cdb->options & RSO_OPTIONS_MASK) { 7510 case RSO_OPTIONS_ALL: 7511 num = 0; 7512 for (i = 0; i < 256; i++) { 7513 entry = &ctl_cmd_table[i]; 7514 if (entry->flags & CTL_CMD_FLAG_SA5) { 7515 for (j = 0; j < 32; j++) { 7516 sentry = &((const struct ctl_cmd_entry *) 7517 entry->execute)[j]; 7518 if (ctl_cmd_applicable( 7519 lun->be_lun->lun_type, sentry)) 7520 num++; 7521 } 7522 } else { 7523 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7524 entry)) 7525 num++; 7526 } 7527 } 7528 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7529 num * sizeof(struct scsi_report_supported_opcodes_descr); 7530 break; 7531 case RSO_OPTIONS_OC: 7532 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7533 ctl_set_invalid_field(/*ctsio*/ ctsio, 7534 /*sks_valid*/ 1, 7535 /*command*/ 1, 7536 /*field*/ 2, 7537 /*bit_valid*/ 1, 7538 /*bit*/ 2); 7539 ctl_done((union ctl_io *)ctsio); 7540 return (CTL_RETVAL_COMPLETE); 7541 } 7542 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7543 break; 7544 case RSO_OPTIONS_OC_SA: 7545 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7546 service_action >= 32) { 7547 ctl_set_invalid_field(/*ctsio*/ ctsio, 7548 /*sks_valid*/ 1, 7549 /*command*/ 1, 7550 /*field*/ 2, 7551 /*bit_valid*/ 1, 7552 /*bit*/ 2); 7553 ctl_done((union ctl_io *)ctsio); 7554 return (CTL_RETVAL_COMPLETE); 7555 } 7556 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7557 break; 7558 default: 7559 ctl_set_invalid_field(/*ctsio*/ ctsio, 7560 /*sks_valid*/ 1, 7561 /*command*/ 1, 7562 /*field*/ 2, 7563 /*bit_valid*/ 1, 7564 /*bit*/ 2); 7565 ctl_done((union ctl_io *)ctsio); 7566 return (CTL_RETVAL_COMPLETE); 7567 } 7568 7569 alloc_len = scsi_4btoul(cdb->length); 7570 7571 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7572 7573 ctsio->kern_sg_entries = 0; 7574 7575 if (total_len < alloc_len) { 7576 ctsio->residual = alloc_len - total_len; 7577 ctsio->kern_data_len = total_len; 7578 ctsio->kern_total_len = total_len; 7579 } else { 7580 ctsio->residual = 0; 7581 ctsio->kern_data_len = alloc_len; 7582 ctsio->kern_total_len = alloc_len; 7583 } 7584 ctsio->kern_data_resid = 0; 7585 ctsio->kern_rel_offset = 0; 7586 7587 switch (cdb->options & RSO_OPTIONS_MASK) { 7588 case RSO_OPTIONS_ALL: 7589 all = (struct scsi_report_supported_opcodes_all *) 7590 ctsio->kern_data_ptr; 7591 num = 0; 7592 for (i = 0; i < 256; i++) { 7593 entry = &ctl_cmd_table[i]; 7594 if (entry->flags & CTL_CMD_FLAG_SA5) { 7595 for (j = 0; j < 32; j++) { 7596 sentry = &((const struct ctl_cmd_entry *) 7597 entry->execute)[j]; 7598 if (!ctl_cmd_applicable( 7599 lun->be_lun->lun_type, sentry)) 7600 continue; 7601 descr = &all->descr[num++]; 7602 descr->opcode = i; 7603 scsi_ulto2b(j, descr->service_action); 7604 descr->flags = RSO_SERVACTV; 7605 scsi_ulto2b(sentry->length, 7606 descr->cdb_length); 7607 } 7608 } else { 7609 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7610 entry)) 7611 continue; 7612 descr = &all->descr[num++]; 7613 descr->opcode = i; 7614 scsi_ulto2b(0, descr->service_action); 7615 descr->flags = 0; 7616 scsi_ulto2b(entry->length, descr->cdb_length); 7617 } 7618 } 7619 scsi_ulto4b( 7620 num * sizeof(struct scsi_report_supported_opcodes_descr), 7621 all->length); 7622 break; 7623 case RSO_OPTIONS_OC: 7624 one = (struct scsi_report_supported_opcodes_one *) 7625 ctsio->kern_data_ptr; 7626 entry = &ctl_cmd_table[opcode]; 7627 goto fill_one; 7628 case RSO_OPTIONS_OC_SA: 7629 one = (struct scsi_report_supported_opcodes_one *) 7630 ctsio->kern_data_ptr; 7631 entry = &ctl_cmd_table[opcode]; 7632 entry = &((const struct ctl_cmd_entry *) 7633 entry->execute)[service_action]; 7634 fill_one: 7635 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7636 one->support = 3; 7637 scsi_ulto2b(entry->length, one->cdb_length); 7638 one->cdb_usage[0] = opcode; 7639 memcpy(&one->cdb_usage[1], entry->usage, 7640 entry->length - 1); 7641 } else 7642 one->support = 1; 7643 break; 7644 } 7645 7646 ctl_set_success(ctsio); 7647 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7648 ctsio->be_move_done = ctl_config_move_done; 7649 ctl_datamove((union ctl_io *)ctsio); 7650 return(retval); 7651 } 7652 7653 int 7654 ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7655 { 7656 struct scsi_report_supported_tmf *cdb; 7657 struct scsi_report_supported_tmf_data *data; 7658 int retval; 7659 int alloc_len, total_len; 7660 7661 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7662 7663 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7664 7665 retval = CTL_RETVAL_COMPLETE; 7666 7667 total_len = sizeof(struct scsi_report_supported_tmf_data); 7668 alloc_len = scsi_4btoul(cdb->length); 7669 7670 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7671 7672 ctsio->kern_sg_entries = 0; 7673 7674 if (total_len < alloc_len) { 7675 ctsio->residual = alloc_len - total_len; 7676 ctsio->kern_data_len = total_len; 7677 ctsio->kern_total_len = total_len; 7678 } else { 7679 ctsio->residual = 0; 7680 ctsio->kern_data_len = alloc_len; 7681 ctsio->kern_total_len = alloc_len; 7682 } 7683 ctsio->kern_data_resid = 0; 7684 ctsio->kern_rel_offset = 0; 7685 7686 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7687 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_TRS; 7688 data->byte2 |= RST_ITNRS; 7689 7690 ctl_set_success(ctsio); 7691 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7692 ctsio->be_move_done = ctl_config_move_done; 7693 ctl_datamove((union ctl_io *)ctsio); 7694 return (retval); 7695 } 7696 7697 int 7698 ctl_report_timestamp(struct ctl_scsiio *ctsio) 7699 { 7700 struct scsi_report_timestamp *cdb; 7701 struct scsi_report_timestamp_data *data; 7702 struct timeval tv; 7703 int64_t timestamp; 7704 int retval; 7705 int alloc_len, total_len; 7706 7707 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7708 7709 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7710 7711 retval = CTL_RETVAL_COMPLETE; 7712 7713 total_len = sizeof(struct scsi_report_timestamp_data); 7714 alloc_len = scsi_4btoul(cdb->length); 7715 7716 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7717 7718 ctsio->kern_sg_entries = 0; 7719 7720 if (total_len < alloc_len) { 7721 ctsio->residual = alloc_len - total_len; 7722 ctsio->kern_data_len = total_len; 7723 ctsio->kern_total_len = total_len; 7724 } else { 7725 ctsio->residual = 0; 7726 ctsio->kern_data_len = alloc_len; 7727 ctsio->kern_total_len = alloc_len; 7728 } 7729 ctsio->kern_data_resid = 0; 7730 ctsio->kern_rel_offset = 0; 7731 7732 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7733 scsi_ulto2b(sizeof(*data) - 2, data->length); 7734 data->origin = RTS_ORIG_OUTSIDE; 7735 getmicrotime(&tv); 7736 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7737 scsi_ulto4b(timestamp >> 16, data->timestamp); 7738 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7739 7740 ctl_set_success(ctsio); 7741 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7742 ctsio->be_move_done = ctl_config_move_done; 7743 ctl_datamove((union ctl_io *)ctsio); 7744 return (retval); 7745 } 7746 7747 int 7748 ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7749 { 7750 struct scsi_per_res_in *cdb; 7751 int alloc_len, total_len = 0; 7752 /* struct scsi_per_res_in_rsrv in_data; */ 7753 struct ctl_lun *lun; 7754 struct ctl_softc *softc; 7755 uint64_t key; 7756 7757 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7758 7759 softc = control_softc; 7760 7761 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7762 7763 alloc_len = scsi_2btoul(cdb->length); 7764 7765 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7766 7767 retry: 7768 mtx_lock(&lun->lun_lock); 7769 switch (cdb->action) { 7770 case SPRI_RK: /* read keys */ 7771 total_len = sizeof(struct scsi_per_res_in_keys) + 7772 lun->pr_key_count * 7773 sizeof(struct scsi_per_res_key); 7774 break; 7775 case SPRI_RR: /* read reservation */ 7776 if (lun->flags & CTL_LUN_PR_RESERVED) 7777 total_len = sizeof(struct scsi_per_res_in_rsrv); 7778 else 7779 total_len = sizeof(struct scsi_per_res_in_header); 7780 break; 7781 case SPRI_RC: /* report capabilities */ 7782 total_len = sizeof(struct scsi_per_res_cap); 7783 break; 7784 case SPRI_RS: /* read full status */ 7785 total_len = sizeof(struct scsi_per_res_in_header) + 7786 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7787 lun->pr_key_count; 7788 break; 7789 default: 7790 panic("Invalid PR type %x", cdb->action); 7791 } 7792 mtx_unlock(&lun->lun_lock); 7793 7794 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7795 7796 if (total_len < alloc_len) { 7797 ctsio->residual = alloc_len - total_len; 7798 ctsio->kern_data_len = total_len; 7799 ctsio->kern_total_len = total_len; 7800 } else { 7801 ctsio->residual = 0; 7802 ctsio->kern_data_len = alloc_len; 7803 ctsio->kern_total_len = alloc_len; 7804 } 7805 7806 ctsio->kern_data_resid = 0; 7807 ctsio->kern_rel_offset = 0; 7808 ctsio->kern_sg_entries = 0; 7809 7810 mtx_lock(&lun->lun_lock); 7811 switch (cdb->action) { 7812 case SPRI_RK: { // read keys 7813 struct scsi_per_res_in_keys *res_keys; 7814 int i, key_count; 7815 7816 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7817 7818 /* 7819 * We had to drop the lock to allocate our buffer, which 7820 * leaves time for someone to come in with another 7821 * persistent reservation. (That is unlikely, though, 7822 * since this should be the only persistent reservation 7823 * command active right now.) 7824 */ 7825 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7826 (lun->pr_key_count * 7827 sizeof(struct scsi_per_res_key)))){ 7828 mtx_unlock(&lun->lun_lock); 7829 free(ctsio->kern_data_ptr, M_CTL); 7830 printf("%s: reservation length changed, retrying\n", 7831 __func__); 7832 goto retry; 7833 } 7834 7835 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7836 7837 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7838 lun->pr_key_count, res_keys->header.length); 7839 7840 for (i = 0, key_count = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7841 if ((key = ctl_get_prkey(lun, i)) == 0) 7842 continue; 7843 7844 /* 7845 * We used lun->pr_key_count to calculate the 7846 * size to allocate. If it turns out the number of 7847 * initiators with the registered flag set is 7848 * larger than that (i.e. they haven't been kept in 7849 * sync), we've got a problem. 7850 */ 7851 if (key_count >= lun->pr_key_count) { 7852 #ifdef NEEDTOPORT 7853 csevent_log(CSC_CTL | CSC_SHELF_SW | 7854 CTL_PR_ERROR, 7855 csevent_LogType_Fault, 7856 csevent_AlertLevel_Yellow, 7857 csevent_FRU_ShelfController, 7858 csevent_FRU_Firmware, 7859 csevent_FRU_Unknown, 7860 "registered keys %d >= key " 7861 "count %d", key_count, 7862 lun->pr_key_count); 7863 #endif 7864 key_count++; 7865 continue; 7866 } 7867 scsi_u64to8b(key, res_keys->keys[key_count].key); 7868 key_count++; 7869 } 7870 break; 7871 } 7872 case SPRI_RR: { // read reservation 7873 struct scsi_per_res_in_rsrv *res; 7874 int tmp_len, header_only; 7875 7876 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7877 7878 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7879 7880 if (lun->flags & CTL_LUN_PR_RESERVED) 7881 { 7882 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7883 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7884 res->header.length); 7885 header_only = 0; 7886 } else { 7887 tmp_len = sizeof(struct scsi_per_res_in_header); 7888 scsi_ulto4b(0, res->header.length); 7889 header_only = 1; 7890 } 7891 7892 /* 7893 * We had to drop the lock to allocate our buffer, which 7894 * leaves time for someone to come in with another 7895 * persistent reservation. (That is unlikely, though, 7896 * since this should be the only persistent reservation 7897 * command active right now.) 7898 */ 7899 if (tmp_len != total_len) { 7900 mtx_unlock(&lun->lun_lock); 7901 free(ctsio->kern_data_ptr, M_CTL); 7902 printf("%s: reservation status changed, retrying\n", 7903 __func__); 7904 goto retry; 7905 } 7906 7907 /* 7908 * No reservation held, so we're done. 7909 */ 7910 if (header_only != 0) 7911 break; 7912 7913 /* 7914 * If the registration is an All Registrants type, the key 7915 * is 0, since it doesn't really matter. 7916 */ 7917 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7918 scsi_u64to8b(ctl_get_prkey(lun, lun->pr_res_idx), 7919 res->data.reservation); 7920 } 7921 res->data.scopetype = lun->res_type; 7922 break; 7923 } 7924 case SPRI_RC: //report capabilities 7925 { 7926 struct scsi_per_res_cap *res_cap; 7927 uint16_t type_mask; 7928 7929 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7930 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7931 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_5; 7932 type_mask = SPRI_TM_WR_EX_AR | 7933 SPRI_TM_EX_AC_RO | 7934 SPRI_TM_WR_EX_RO | 7935 SPRI_TM_EX_AC | 7936 SPRI_TM_WR_EX | 7937 SPRI_TM_EX_AC_AR; 7938 scsi_ulto2b(type_mask, res_cap->type_mask); 7939 break; 7940 } 7941 case SPRI_RS: { // read full status 7942 struct scsi_per_res_in_full *res_status; 7943 struct scsi_per_res_in_full_desc *res_desc; 7944 struct ctl_port *port; 7945 int i, len; 7946 7947 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7948 7949 /* 7950 * We had to drop the lock to allocate our buffer, which 7951 * leaves time for someone to come in with another 7952 * persistent reservation. (That is unlikely, though, 7953 * since this should be the only persistent reservation 7954 * command active right now.) 7955 */ 7956 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7957 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7958 lun->pr_key_count)){ 7959 mtx_unlock(&lun->lun_lock); 7960 free(ctsio->kern_data_ptr, M_CTL); 7961 printf("%s: reservation length changed, retrying\n", 7962 __func__); 7963 goto retry; 7964 } 7965 7966 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 7967 7968 res_desc = &res_status->desc[0]; 7969 for (i = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7970 if ((key = ctl_get_prkey(lun, i)) == 0) 7971 continue; 7972 7973 scsi_u64to8b(key, res_desc->res_key.key); 7974 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7975 (lun->pr_res_idx == i || 7976 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7977 res_desc->flags = SPRI_FULL_R_HOLDER; 7978 res_desc->scopetype = lun->res_type; 7979 } 7980 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7981 res_desc->rel_trgt_port_id); 7982 len = 0; 7983 port = softc->ctl_ports[ 7984 ctl_port_idx(i / CTL_MAX_INIT_PER_PORT)]; 7985 if (port != NULL) 7986 len = ctl_create_iid(port, 7987 i % CTL_MAX_INIT_PER_PORT, 7988 res_desc->transport_id); 7989 scsi_ulto4b(len, res_desc->additional_length); 7990 res_desc = (struct scsi_per_res_in_full_desc *) 7991 &res_desc->transport_id[len]; 7992 } 7993 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7994 res_status->header.length); 7995 break; 7996 } 7997 default: 7998 /* 7999 * This is a bug, because we just checked for this above, 8000 * and should have returned an error. 8001 */ 8002 panic("Invalid PR type %x", cdb->action); 8003 break; /* NOTREACHED */ 8004 } 8005 mtx_unlock(&lun->lun_lock); 8006 8007 ctl_set_success(ctsio); 8008 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8009 ctsio->be_move_done = ctl_config_move_done; 8010 ctl_datamove((union ctl_io *)ctsio); 8011 return (CTL_RETVAL_COMPLETE); 8012 } 8013 8014 static void 8015 ctl_est_res_ua(struct ctl_lun *lun, uint32_t residx, ctl_ua_type ua) 8016 { 8017 int off = lun->ctl_softc->persis_offset; 8018 8019 if (residx >= off && residx < off + CTL_MAX_INITIATORS) 8020 ctl_est_ua(lun, residx - off, ua); 8021 } 8022 8023 /* 8024 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 8025 * it should return. 8026 */ 8027 static int 8028 ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 8029 uint64_t sa_res_key, uint8_t type, uint32_t residx, 8030 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 8031 struct scsi_per_res_out_parms* param) 8032 { 8033 union ctl_ha_msg persis_io; 8034 int retval, i; 8035 int isc_retval; 8036 8037 retval = 0; 8038 8039 mtx_lock(&lun->lun_lock); 8040 if (sa_res_key == 0) { 8041 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8042 /* validate scope and type */ 8043 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8044 SPR_LU_SCOPE) { 8045 mtx_unlock(&lun->lun_lock); 8046 ctl_set_invalid_field(/*ctsio*/ ctsio, 8047 /*sks_valid*/ 1, 8048 /*command*/ 1, 8049 /*field*/ 2, 8050 /*bit_valid*/ 1, 8051 /*bit*/ 4); 8052 ctl_done((union ctl_io *)ctsio); 8053 return (1); 8054 } 8055 8056 if (type>8 || type==2 || type==4 || type==0) { 8057 mtx_unlock(&lun->lun_lock); 8058 ctl_set_invalid_field(/*ctsio*/ ctsio, 8059 /*sks_valid*/ 1, 8060 /*command*/ 1, 8061 /*field*/ 2, 8062 /*bit_valid*/ 1, 8063 /*bit*/ 0); 8064 ctl_done((union ctl_io *)ctsio); 8065 return (1); 8066 } 8067 8068 /* 8069 * Unregister everybody else and build UA for 8070 * them 8071 */ 8072 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8073 if (i == residx || ctl_get_prkey(lun, i) == 0) 8074 continue; 8075 8076 ctl_clr_prkey(lun, i); 8077 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8078 } 8079 lun->pr_key_count = 1; 8080 lun->res_type = type; 8081 if (lun->res_type != SPR_TYPE_WR_EX_AR 8082 && lun->res_type != SPR_TYPE_EX_AC_AR) 8083 lun->pr_res_idx = residx; 8084 8085 /* send msg to other side */ 8086 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8087 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8088 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8089 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8090 persis_io.pr.pr_info.res_type = type; 8091 memcpy(persis_io.pr.pr_info.sa_res_key, 8092 param->serv_act_res_key, 8093 sizeof(param->serv_act_res_key)); 8094 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8095 &persis_io, sizeof(persis_io), 0)) > 8096 CTL_HA_STATUS_SUCCESS) { 8097 printf("CTL:Persis Out error returned " 8098 "from ctl_ha_msg_send %d\n", 8099 isc_retval); 8100 } 8101 } else { 8102 /* not all registrants */ 8103 mtx_unlock(&lun->lun_lock); 8104 free(ctsio->kern_data_ptr, M_CTL); 8105 ctl_set_invalid_field(ctsio, 8106 /*sks_valid*/ 1, 8107 /*command*/ 0, 8108 /*field*/ 8, 8109 /*bit_valid*/ 0, 8110 /*bit*/ 0); 8111 ctl_done((union ctl_io *)ctsio); 8112 return (1); 8113 } 8114 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8115 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 8116 int found = 0; 8117 8118 if (res_key == sa_res_key) { 8119 /* special case */ 8120 /* 8121 * The spec implies this is not good but doesn't 8122 * say what to do. There are two choices either 8123 * generate a res conflict or check condition 8124 * with illegal field in parameter data. Since 8125 * that is what is done when the sa_res_key is 8126 * zero I'll take that approach since this has 8127 * to do with the sa_res_key. 8128 */ 8129 mtx_unlock(&lun->lun_lock); 8130 free(ctsio->kern_data_ptr, M_CTL); 8131 ctl_set_invalid_field(ctsio, 8132 /*sks_valid*/ 1, 8133 /*command*/ 0, 8134 /*field*/ 8, 8135 /*bit_valid*/ 0, 8136 /*bit*/ 0); 8137 ctl_done((union ctl_io *)ctsio); 8138 return (1); 8139 } 8140 8141 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8142 if (ctl_get_prkey(lun, i) != sa_res_key) 8143 continue; 8144 8145 found = 1; 8146 ctl_clr_prkey(lun, i); 8147 lun->pr_key_count--; 8148 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8149 } 8150 if (!found) { 8151 mtx_unlock(&lun->lun_lock); 8152 free(ctsio->kern_data_ptr, M_CTL); 8153 ctl_set_reservation_conflict(ctsio); 8154 ctl_done((union ctl_io *)ctsio); 8155 return (CTL_RETVAL_COMPLETE); 8156 } 8157 /* send msg to other side */ 8158 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8159 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8160 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8161 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8162 persis_io.pr.pr_info.res_type = type; 8163 memcpy(persis_io.pr.pr_info.sa_res_key, 8164 param->serv_act_res_key, 8165 sizeof(param->serv_act_res_key)); 8166 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8167 &persis_io, sizeof(persis_io), 0)) > 8168 CTL_HA_STATUS_SUCCESS) { 8169 printf("CTL:Persis Out error returned from " 8170 "ctl_ha_msg_send %d\n", isc_retval); 8171 } 8172 } else { 8173 /* Reserved but not all registrants */ 8174 /* sa_res_key is res holder */ 8175 if (sa_res_key == ctl_get_prkey(lun, lun->pr_res_idx)) { 8176 /* validate scope and type */ 8177 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8178 SPR_LU_SCOPE) { 8179 mtx_unlock(&lun->lun_lock); 8180 ctl_set_invalid_field(/*ctsio*/ ctsio, 8181 /*sks_valid*/ 1, 8182 /*command*/ 1, 8183 /*field*/ 2, 8184 /*bit_valid*/ 1, 8185 /*bit*/ 4); 8186 ctl_done((union ctl_io *)ctsio); 8187 return (1); 8188 } 8189 8190 if (type>8 || type==2 || type==4 || type==0) { 8191 mtx_unlock(&lun->lun_lock); 8192 ctl_set_invalid_field(/*ctsio*/ ctsio, 8193 /*sks_valid*/ 1, 8194 /*command*/ 1, 8195 /*field*/ 2, 8196 /*bit_valid*/ 1, 8197 /*bit*/ 0); 8198 ctl_done((union ctl_io *)ctsio); 8199 return (1); 8200 } 8201 8202 /* 8203 * Do the following: 8204 * if sa_res_key != res_key remove all 8205 * registrants w/sa_res_key and generate UA 8206 * for these registrants(Registrations 8207 * Preempted) if it wasn't an exclusive 8208 * reservation generate UA(Reservations 8209 * Preempted) for all other registered nexuses 8210 * if the type has changed. Establish the new 8211 * reservation and holder. If res_key and 8212 * sa_res_key are the same do the above 8213 * except don't unregister the res holder. 8214 */ 8215 8216 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8217 if (i == residx || 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_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8224 } else if (type != lun->res_type 8225 && (lun->res_type == SPR_TYPE_WR_EX_RO 8226 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 8227 ctl_est_res_ua(lun, i, CTL_UA_RES_RELEASE); 8228 } 8229 } 8230 lun->res_type = 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 = residx; 8234 else 8235 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8236 8237 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8238 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8239 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8240 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8241 persis_io.pr.pr_info.res_type = type; 8242 memcpy(persis_io.pr.pr_info.sa_res_key, 8243 param->serv_act_res_key, 8244 sizeof(param->serv_act_res_key)); 8245 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8246 &persis_io, sizeof(persis_io), 0)) > 8247 CTL_HA_STATUS_SUCCESS) { 8248 printf("CTL:Persis Out error returned " 8249 "from ctl_ha_msg_send %d\n", 8250 isc_retval); 8251 } 8252 } else { 8253 /* 8254 * sa_res_key is not the res holder just 8255 * remove registrants 8256 */ 8257 int found=0; 8258 8259 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8260 if (sa_res_key != ctl_get_prkey(lun, i)) 8261 continue; 8262 8263 found = 1; 8264 ctl_clr_prkey(lun, i); 8265 lun->pr_key_count--; 8266 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8267 } 8268 8269 if (!found) { 8270 mtx_unlock(&lun->lun_lock); 8271 free(ctsio->kern_data_ptr, M_CTL); 8272 ctl_set_reservation_conflict(ctsio); 8273 ctl_done((union ctl_io *)ctsio); 8274 return (1); 8275 } 8276 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8277 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8278 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8279 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8280 persis_io.pr.pr_info.res_type = type; 8281 memcpy(persis_io.pr.pr_info.sa_res_key, 8282 param->serv_act_res_key, 8283 sizeof(param->serv_act_res_key)); 8284 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8285 &persis_io, sizeof(persis_io), 0)) > 8286 CTL_HA_STATUS_SUCCESS) { 8287 printf("CTL:Persis Out error returned " 8288 "from ctl_ha_msg_send %d\n", 8289 isc_retval); 8290 } 8291 } 8292 } 8293 8294 lun->PRGeneration++; 8295 mtx_unlock(&lun->lun_lock); 8296 8297 return (retval); 8298 } 8299 8300 static void 8301 ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8302 { 8303 uint64_t sa_res_key; 8304 int i; 8305 8306 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8307 8308 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8309 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8310 || sa_res_key != ctl_get_prkey(lun, lun->pr_res_idx)) { 8311 if (sa_res_key == 0) { 8312 /* 8313 * Unregister everybody else and build UA for 8314 * them 8315 */ 8316 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8317 if (i == msg->pr.pr_info.residx || 8318 ctl_get_prkey(lun, i) == 0) 8319 continue; 8320 8321 ctl_clr_prkey(lun, i); 8322 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8323 } 8324 8325 lun->pr_key_count = 1; 8326 lun->res_type = msg->pr.pr_info.res_type; 8327 if (lun->res_type != SPR_TYPE_WR_EX_AR 8328 && lun->res_type != SPR_TYPE_EX_AC_AR) 8329 lun->pr_res_idx = msg->pr.pr_info.residx; 8330 } else { 8331 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8332 if (sa_res_key == ctl_get_prkey(lun, i)) 8333 continue; 8334 8335 ctl_clr_prkey(lun, i); 8336 lun->pr_key_count--; 8337 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8338 } 8339 } 8340 } else { 8341 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8342 if (i == msg->pr.pr_info.residx || 8343 ctl_get_prkey(lun, i) == 0) 8344 continue; 8345 8346 if (sa_res_key == ctl_get_prkey(lun, i)) { 8347 ctl_clr_prkey(lun, i); 8348 lun->pr_key_count--; 8349 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8350 } else if (msg->pr.pr_info.res_type != lun->res_type 8351 && (lun->res_type == SPR_TYPE_WR_EX_RO 8352 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8353 ctl_est_res_ua(lun, i, CTL_UA_RES_RELEASE); 8354 } 8355 } 8356 lun->res_type = msg->pr.pr_info.res_type; 8357 if (lun->res_type != SPR_TYPE_WR_EX_AR 8358 && lun->res_type != SPR_TYPE_EX_AC_AR) 8359 lun->pr_res_idx = msg->pr.pr_info.residx; 8360 else 8361 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8362 } 8363 lun->PRGeneration++; 8364 8365 } 8366 8367 8368 int 8369 ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8370 { 8371 int retval; 8372 int isc_retval; 8373 u_int32_t param_len; 8374 struct scsi_per_res_out *cdb; 8375 struct ctl_lun *lun; 8376 struct scsi_per_res_out_parms* param; 8377 struct ctl_softc *softc; 8378 uint32_t residx; 8379 uint64_t res_key, sa_res_key, key; 8380 uint8_t type; 8381 union ctl_ha_msg persis_io; 8382 int i; 8383 8384 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8385 8386 retval = CTL_RETVAL_COMPLETE; 8387 8388 softc = control_softc; 8389 8390 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8391 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8392 8393 /* 8394 * We only support whole-LUN scope. The scope & type are ignored for 8395 * register, register and ignore existing key and clear. 8396 * We sometimes ignore scope and type on preempts too!! 8397 * Verify reservation type here as well. 8398 */ 8399 type = cdb->scope_type & SPR_TYPE_MASK; 8400 if ((cdb->action == SPRO_RESERVE) 8401 || (cdb->action == SPRO_RELEASE)) { 8402 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8403 ctl_set_invalid_field(/*ctsio*/ ctsio, 8404 /*sks_valid*/ 1, 8405 /*command*/ 1, 8406 /*field*/ 2, 8407 /*bit_valid*/ 1, 8408 /*bit*/ 4); 8409 ctl_done((union ctl_io *)ctsio); 8410 return (CTL_RETVAL_COMPLETE); 8411 } 8412 8413 if (type>8 || type==2 || type==4 || type==0) { 8414 ctl_set_invalid_field(/*ctsio*/ ctsio, 8415 /*sks_valid*/ 1, 8416 /*command*/ 1, 8417 /*field*/ 2, 8418 /*bit_valid*/ 1, 8419 /*bit*/ 0); 8420 ctl_done((union ctl_io *)ctsio); 8421 return (CTL_RETVAL_COMPLETE); 8422 } 8423 } 8424 8425 param_len = scsi_4btoul(cdb->length); 8426 8427 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8428 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8429 ctsio->kern_data_len = param_len; 8430 ctsio->kern_total_len = param_len; 8431 ctsio->kern_data_resid = 0; 8432 ctsio->kern_rel_offset = 0; 8433 ctsio->kern_sg_entries = 0; 8434 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8435 ctsio->be_move_done = ctl_config_move_done; 8436 ctl_datamove((union ctl_io *)ctsio); 8437 8438 return (CTL_RETVAL_COMPLETE); 8439 } 8440 8441 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8442 8443 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8444 res_key = scsi_8btou64(param->res_key.key); 8445 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8446 8447 /* 8448 * Validate the reservation key here except for SPRO_REG_IGNO 8449 * This must be done for all other service actions 8450 */ 8451 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8452 mtx_lock(&lun->lun_lock); 8453 if ((key = ctl_get_prkey(lun, residx)) != 0) { 8454 if (res_key != key) { 8455 /* 8456 * The current key passed in doesn't match 8457 * the one the initiator previously 8458 * registered. 8459 */ 8460 mtx_unlock(&lun->lun_lock); 8461 free(ctsio->kern_data_ptr, M_CTL); 8462 ctl_set_reservation_conflict(ctsio); 8463 ctl_done((union ctl_io *)ctsio); 8464 return (CTL_RETVAL_COMPLETE); 8465 } 8466 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8467 /* 8468 * We are not registered 8469 */ 8470 mtx_unlock(&lun->lun_lock); 8471 free(ctsio->kern_data_ptr, M_CTL); 8472 ctl_set_reservation_conflict(ctsio); 8473 ctl_done((union ctl_io *)ctsio); 8474 return (CTL_RETVAL_COMPLETE); 8475 } else if (res_key != 0) { 8476 /* 8477 * We are not registered and trying to register but 8478 * the register key isn't zero. 8479 */ 8480 mtx_unlock(&lun->lun_lock); 8481 free(ctsio->kern_data_ptr, M_CTL); 8482 ctl_set_reservation_conflict(ctsio); 8483 ctl_done((union ctl_io *)ctsio); 8484 return (CTL_RETVAL_COMPLETE); 8485 } 8486 mtx_unlock(&lun->lun_lock); 8487 } 8488 8489 switch (cdb->action & SPRO_ACTION_MASK) { 8490 case SPRO_REGISTER: 8491 case SPRO_REG_IGNO: { 8492 8493 #if 0 8494 printf("Registration received\n"); 8495 #endif 8496 8497 /* 8498 * We don't support any of these options, as we report in 8499 * the read capabilities request (see 8500 * ctl_persistent_reserve_in(), above). 8501 */ 8502 if ((param->flags & SPR_SPEC_I_PT) 8503 || (param->flags & SPR_ALL_TG_PT) 8504 || (param->flags & SPR_APTPL)) { 8505 int bit_ptr; 8506 8507 if (param->flags & SPR_APTPL) 8508 bit_ptr = 0; 8509 else if (param->flags & SPR_ALL_TG_PT) 8510 bit_ptr = 2; 8511 else /* SPR_SPEC_I_PT */ 8512 bit_ptr = 3; 8513 8514 free(ctsio->kern_data_ptr, M_CTL); 8515 ctl_set_invalid_field(ctsio, 8516 /*sks_valid*/ 1, 8517 /*command*/ 0, 8518 /*field*/ 20, 8519 /*bit_valid*/ 1, 8520 /*bit*/ bit_ptr); 8521 ctl_done((union ctl_io *)ctsio); 8522 return (CTL_RETVAL_COMPLETE); 8523 } 8524 8525 mtx_lock(&lun->lun_lock); 8526 8527 /* 8528 * The initiator wants to clear the 8529 * key/unregister. 8530 */ 8531 if (sa_res_key == 0) { 8532 if ((res_key == 0 8533 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8534 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8535 && ctl_get_prkey(lun, residx) == 0)) { 8536 mtx_unlock(&lun->lun_lock); 8537 goto done; 8538 } 8539 8540 ctl_clr_prkey(lun, residx); 8541 lun->pr_key_count--; 8542 8543 if (residx == lun->pr_res_idx) { 8544 lun->flags &= ~CTL_LUN_PR_RESERVED; 8545 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8546 8547 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8548 || lun->res_type == SPR_TYPE_EX_AC_RO) 8549 && lun->pr_key_count) { 8550 /* 8551 * If the reservation is a registrants 8552 * only type we need to generate a UA 8553 * for other registered inits. The 8554 * sense code should be RESERVATIONS 8555 * RELEASED 8556 */ 8557 8558 for (i = 0; i < CTL_MAX_INITIATORS;i++){ 8559 if (ctl_get_prkey(lun, i + 8560 softc->persis_offset) == 0) 8561 continue; 8562 ctl_est_ua(lun, i, 8563 CTL_UA_RES_RELEASE); 8564 } 8565 } 8566 lun->res_type = 0; 8567 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8568 if (lun->pr_key_count==0) { 8569 lun->flags &= ~CTL_LUN_PR_RESERVED; 8570 lun->res_type = 0; 8571 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8572 } 8573 } 8574 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8575 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8576 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8577 persis_io.pr.pr_info.residx = residx; 8578 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8579 &persis_io, sizeof(persis_io), 0 )) > 8580 CTL_HA_STATUS_SUCCESS) { 8581 printf("CTL:Persis Out error returned from " 8582 "ctl_ha_msg_send %d\n", isc_retval); 8583 } 8584 } else /* sa_res_key != 0 */ { 8585 8586 /* 8587 * If we aren't registered currently then increment 8588 * the key count and set the registered flag. 8589 */ 8590 ctl_alloc_prkey(lun, residx); 8591 if (ctl_get_prkey(lun, residx) == 0) 8592 lun->pr_key_count++; 8593 ctl_set_prkey(lun, residx, sa_res_key); 8594 8595 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8596 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8597 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8598 persis_io.pr.pr_info.residx = residx; 8599 memcpy(persis_io.pr.pr_info.sa_res_key, 8600 param->serv_act_res_key, 8601 sizeof(param->serv_act_res_key)); 8602 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8603 &persis_io, sizeof(persis_io), 0)) > 8604 CTL_HA_STATUS_SUCCESS) { 8605 printf("CTL:Persis Out error returned from " 8606 "ctl_ha_msg_send %d\n", isc_retval); 8607 } 8608 } 8609 lun->PRGeneration++; 8610 mtx_unlock(&lun->lun_lock); 8611 8612 break; 8613 } 8614 case SPRO_RESERVE: 8615 #if 0 8616 printf("Reserve executed type %d\n", type); 8617 #endif 8618 mtx_lock(&lun->lun_lock); 8619 if (lun->flags & CTL_LUN_PR_RESERVED) { 8620 /* 8621 * if this isn't the reservation holder and it's 8622 * not a "all registrants" type or if the type is 8623 * different then we have a conflict 8624 */ 8625 if ((lun->pr_res_idx != residx 8626 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8627 || lun->res_type != type) { 8628 mtx_unlock(&lun->lun_lock); 8629 free(ctsio->kern_data_ptr, M_CTL); 8630 ctl_set_reservation_conflict(ctsio); 8631 ctl_done((union ctl_io *)ctsio); 8632 return (CTL_RETVAL_COMPLETE); 8633 } 8634 mtx_unlock(&lun->lun_lock); 8635 } else /* create a reservation */ { 8636 /* 8637 * If it's not an "all registrants" type record 8638 * reservation holder 8639 */ 8640 if (type != SPR_TYPE_WR_EX_AR 8641 && type != SPR_TYPE_EX_AC_AR) 8642 lun->pr_res_idx = residx; /* Res holder */ 8643 else 8644 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8645 8646 lun->flags |= CTL_LUN_PR_RESERVED; 8647 lun->res_type = type; 8648 8649 mtx_unlock(&lun->lun_lock); 8650 8651 /* send msg to other side */ 8652 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8653 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8654 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8655 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8656 persis_io.pr.pr_info.res_type = type; 8657 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8658 &persis_io, sizeof(persis_io), 0)) > 8659 CTL_HA_STATUS_SUCCESS) { 8660 printf("CTL:Persis Out error returned from " 8661 "ctl_ha_msg_send %d\n", isc_retval); 8662 } 8663 } 8664 break; 8665 8666 case SPRO_RELEASE: 8667 mtx_lock(&lun->lun_lock); 8668 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8669 /* No reservation exists return good status */ 8670 mtx_unlock(&lun->lun_lock); 8671 goto done; 8672 } 8673 /* 8674 * Is this nexus a reservation holder? 8675 */ 8676 if (lun->pr_res_idx != residx 8677 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8678 /* 8679 * not a res holder return good status but 8680 * do nothing 8681 */ 8682 mtx_unlock(&lun->lun_lock); 8683 goto done; 8684 } 8685 8686 if (lun->res_type != type) { 8687 mtx_unlock(&lun->lun_lock); 8688 free(ctsio->kern_data_ptr, M_CTL); 8689 ctl_set_illegal_pr_release(ctsio); 8690 ctl_done((union ctl_io *)ctsio); 8691 return (CTL_RETVAL_COMPLETE); 8692 } 8693 8694 /* okay to release */ 8695 lun->flags &= ~CTL_LUN_PR_RESERVED; 8696 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8697 lun->res_type = 0; 8698 8699 /* 8700 * if this isn't an exclusive access 8701 * res generate UA for all other 8702 * registrants. 8703 */ 8704 if (type != SPR_TYPE_EX_AC 8705 && type != SPR_TYPE_WR_EX) { 8706 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8707 if (i == residx || 8708 ctl_get_prkey(lun, 8709 i + softc->persis_offset) == 0) 8710 continue; 8711 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8712 } 8713 } 8714 mtx_unlock(&lun->lun_lock); 8715 /* Send msg to other side */ 8716 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8717 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8718 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8719 if ((isc_retval=ctl_ha_msg_send( CTL_HA_CHAN_CTL, &persis_io, 8720 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8721 printf("CTL:Persis Out error returned from " 8722 "ctl_ha_msg_send %d\n", isc_retval); 8723 } 8724 break; 8725 8726 case SPRO_CLEAR: 8727 /* send msg to other side */ 8728 8729 mtx_lock(&lun->lun_lock); 8730 lun->flags &= ~CTL_LUN_PR_RESERVED; 8731 lun->res_type = 0; 8732 lun->pr_key_count = 0; 8733 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8734 8735 ctl_clr_prkey(lun, residx); 8736 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) 8737 if (ctl_get_prkey(lun, i) != 0) { 8738 ctl_clr_prkey(lun, i); 8739 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8740 } 8741 lun->PRGeneration++; 8742 mtx_unlock(&lun->lun_lock); 8743 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8744 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8745 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8746 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8747 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8748 printf("CTL:Persis Out error returned from " 8749 "ctl_ha_msg_send %d\n", isc_retval); 8750 } 8751 break; 8752 8753 case SPRO_PREEMPT: 8754 case SPRO_PRE_ABO: { 8755 int nretval; 8756 8757 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8758 residx, ctsio, cdb, param); 8759 if (nretval != 0) 8760 return (CTL_RETVAL_COMPLETE); 8761 break; 8762 } 8763 default: 8764 panic("Invalid PR type %x", cdb->action); 8765 } 8766 8767 done: 8768 free(ctsio->kern_data_ptr, M_CTL); 8769 ctl_set_success(ctsio); 8770 ctl_done((union ctl_io *)ctsio); 8771 8772 return (retval); 8773 } 8774 8775 /* 8776 * This routine is for handling a message from the other SC pertaining to 8777 * persistent reserve out. All the error checking will have been done 8778 * so only perorming the action need be done here to keep the two 8779 * in sync. 8780 */ 8781 static void 8782 ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8783 { 8784 struct ctl_lun *lun; 8785 struct ctl_softc *softc; 8786 int i; 8787 uint32_t targ_lun; 8788 8789 softc = control_softc; 8790 8791 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8792 lun = softc->ctl_luns[targ_lun]; 8793 mtx_lock(&lun->lun_lock); 8794 switch(msg->pr.pr_info.action) { 8795 case CTL_PR_REG_KEY: 8796 ctl_alloc_prkey(lun, msg->pr.pr_info.residx); 8797 if (ctl_get_prkey(lun, msg->pr.pr_info.residx) == 0) 8798 lun->pr_key_count++; 8799 ctl_set_prkey(lun, msg->pr.pr_info.residx, 8800 scsi_8btou64(msg->pr.pr_info.sa_res_key)); 8801 lun->PRGeneration++; 8802 break; 8803 8804 case CTL_PR_UNREG_KEY: 8805 ctl_clr_prkey(lun, msg->pr.pr_info.residx); 8806 lun->pr_key_count--; 8807 8808 /* XXX Need to see if the reservation has been released */ 8809 /* if so do we need to generate UA? */ 8810 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8811 lun->flags &= ~CTL_LUN_PR_RESERVED; 8812 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8813 8814 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8815 || lun->res_type == SPR_TYPE_EX_AC_RO) 8816 && lun->pr_key_count) { 8817 /* 8818 * If the reservation is a registrants 8819 * only type we need to generate a UA 8820 * for other registered inits. The 8821 * sense code should be RESERVATIONS 8822 * RELEASED 8823 */ 8824 8825 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8826 if (ctl_get_prkey(lun, i + 8827 softc->persis_offset) == 0) 8828 continue; 8829 8830 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8831 } 8832 } 8833 lun->res_type = 0; 8834 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8835 if (lun->pr_key_count==0) { 8836 lun->flags &= ~CTL_LUN_PR_RESERVED; 8837 lun->res_type = 0; 8838 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8839 } 8840 } 8841 lun->PRGeneration++; 8842 break; 8843 8844 case CTL_PR_RESERVE: 8845 lun->flags |= CTL_LUN_PR_RESERVED; 8846 lun->res_type = msg->pr.pr_info.res_type; 8847 lun->pr_res_idx = msg->pr.pr_info.residx; 8848 8849 break; 8850 8851 case CTL_PR_RELEASE: 8852 /* 8853 * if this isn't an exclusive access res generate UA for all 8854 * other registrants. 8855 */ 8856 if (lun->res_type != SPR_TYPE_EX_AC 8857 && lun->res_type != SPR_TYPE_WR_EX) { 8858 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8859 if (ctl_get_prkey(lun, i + softc->persis_offset) != 0) 8860 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8861 } 8862 8863 lun->flags &= ~CTL_LUN_PR_RESERVED; 8864 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8865 lun->res_type = 0; 8866 break; 8867 8868 case CTL_PR_PREEMPT: 8869 ctl_pro_preempt_other(lun, msg); 8870 break; 8871 case CTL_PR_CLEAR: 8872 lun->flags &= ~CTL_LUN_PR_RESERVED; 8873 lun->res_type = 0; 8874 lun->pr_key_count = 0; 8875 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8876 8877 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8878 if (ctl_get_prkey(lun, i) == 0) 8879 continue; 8880 ctl_clr_prkey(lun, i); 8881 ctl_est_res_ua(lun, i, CTL_UA_REG_PREEMPT); 8882 } 8883 lun->PRGeneration++; 8884 break; 8885 } 8886 8887 mtx_unlock(&lun->lun_lock); 8888 } 8889 8890 int 8891 ctl_read_write(struct ctl_scsiio *ctsio) 8892 { 8893 struct ctl_lun *lun; 8894 struct ctl_lba_len_flags *lbalen; 8895 uint64_t lba; 8896 uint32_t num_blocks; 8897 int flags, retval; 8898 int isread; 8899 8900 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8901 8902 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8903 8904 flags = 0; 8905 retval = CTL_RETVAL_COMPLETE; 8906 8907 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8908 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8909 switch (ctsio->cdb[0]) { 8910 case READ_6: 8911 case WRITE_6: { 8912 struct scsi_rw_6 *cdb; 8913 8914 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8915 8916 lba = scsi_3btoul(cdb->addr); 8917 /* only 5 bits are valid in the most significant address byte */ 8918 lba &= 0x1fffff; 8919 num_blocks = cdb->length; 8920 /* 8921 * This is correct according to SBC-2. 8922 */ 8923 if (num_blocks == 0) 8924 num_blocks = 256; 8925 break; 8926 } 8927 case READ_10: 8928 case WRITE_10: { 8929 struct scsi_rw_10 *cdb; 8930 8931 cdb = (struct scsi_rw_10 *)ctsio->cdb; 8932 if (cdb->byte2 & SRW10_FUA) 8933 flags |= CTL_LLF_FUA; 8934 if (cdb->byte2 & SRW10_DPO) 8935 flags |= CTL_LLF_DPO; 8936 lba = scsi_4btoul(cdb->addr); 8937 num_blocks = scsi_2btoul(cdb->length); 8938 break; 8939 } 8940 case WRITE_VERIFY_10: { 8941 struct scsi_write_verify_10 *cdb; 8942 8943 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 8944 flags |= CTL_LLF_FUA; 8945 if (cdb->byte2 & SWV_DPO) 8946 flags |= CTL_LLF_DPO; 8947 lba = scsi_4btoul(cdb->addr); 8948 num_blocks = scsi_2btoul(cdb->length); 8949 break; 8950 } 8951 case READ_12: 8952 case WRITE_12: { 8953 struct scsi_rw_12 *cdb; 8954 8955 cdb = (struct scsi_rw_12 *)ctsio->cdb; 8956 if (cdb->byte2 & SRW12_FUA) 8957 flags |= CTL_LLF_FUA; 8958 if (cdb->byte2 & SRW12_DPO) 8959 flags |= CTL_LLF_DPO; 8960 lba = scsi_4btoul(cdb->addr); 8961 num_blocks = scsi_4btoul(cdb->length); 8962 break; 8963 } 8964 case WRITE_VERIFY_12: { 8965 struct scsi_write_verify_12 *cdb; 8966 8967 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 8968 flags |= CTL_LLF_FUA; 8969 if (cdb->byte2 & SWV_DPO) 8970 flags |= CTL_LLF_DPO; 8971 lba = scsi_4btoul(cdb->addr); 8972 num_blocks = scsi_4btoul(cdb->length); 8973 break; 8974 } 8975 case READ_16: 8976 case WRITE_16: { 8977 struct scsi_rw_16 *cdb; 8978 8979 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8980 if (cdb->byte2 & SRW12_FUA) 8981 flags |= CTL_LLF_FUA; 8982 if (cdb->byte2 & SRW12_DPO) 8983 flags |= CTL_LLF_DPO; 8984 lba = scsi_8btou64(cdb->addr); 8985 num_blocks = scsi_4btoul(cdb->length); 8986 break; 8987 } 8988 case WRITE_ATOMIC_16: { 8989 struct scsi_rw_16 *cdb; 8990 8991 if (lun->be_lun->atomicblock == 0) { 8992 ctl_set_invalid_opcode(ctsio); 8993 ctl_done((union ctl_io *)ctsio); 8994 return (CTL_RETVAL_COMPLETE); 8995 } 8996 8997 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8998 if (cdb->byte2 & SRW12_FUA) 8999 flags |= CTL_LLF_FUA; 9000 if (cdb->byte2 & SRW12_DPO) 9001 flags |= CTL_LLF_DPO; 9002 lba = scsi_8btou64(cdb->addr); 9003 num_blocks = scsi_4btoul(cdb->length); 9004 if (num_blocks > lun->be_lun->atomicblock) { 9005 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 9006 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 9007 /*bit*/ 0); 9008 ctl_done((union ctl_io *)ctsio); 9009 return (CTL_RETVAL_COMPLETE); 9010 } 9011 break; 9012 } 9013 case WRITE_VERIFY_16: { 9014 struct scsi_write_verify_16 *cdb; 9015 9016 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 9017 flags |= CTL_LLF_FUA; 9018 if (cdb->byte2 & SWV_DPO) 9019 flags |= CTL_LLF_DPO; 9020 lba = scsi_8btou64(cdb->addr); 9021 num_blocks = scsi_4btoul(cdb->length); 9022 break; 9023 } 9024 default: 9025 /* 9026 * We got a command we don't support. This shouldn't 9027 * happen, commands should be filtered out above us. 9028 */ 9029 ctl_set_invalid_opcode(ctsio); 9030 ctl_done((union ctl_io *)ctsio); 9031 9032 return (CTL_RETVAL_COMPLETE); 9033 break; /* NOTREACHED */ 9034 } 9035 9036 /* 9037 * The first check is to make sure we're in bounds, the second 9038 * check is to catch wrap-around problems. If the lba + num blocks 9039 * is less than the lba, then we've wrapped around and the block 9040 * range is invalid anyway. 9041 */ 9042 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9043 || ((lba + num_blocks) < lba)) { 9044 ctl_set_lba_out_of_range(ctsio); 9045 ctl_done((union ctl_io *)ctsio); 9046 return (CTL_RETVAL_COMPLETE); 9047 } 9048 9049 /* 9050 * According to SBC-3, a transfer length of 0 is not an error. 9051 * Note that this cannot happen with WRITE(6) or READ(6), since 0 9052 * translates to 256 blocks for those commands. 9053 */ 9054 if (num_blocks == 0) { 9055 ctl_set_success(ctsio); 9056 ctl_done((union ctl_io *)ctsio); 9057 return (CTL_RETVAL_COMPLETE); 9058 } 9059 9060 /* Set FUA and/or DPO if caches are disabled. */ 9061 if (isread) { 9062 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9063 SCP_RCD) != 0) 9064 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 9065 } else { 9066 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9067 SCP_WCE) == 0) 9068 flags |= CTL_LLF_FUA; 9069 } 9070 9071 lbalen = (struct ctl_lba_len_flags *) 9072 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9073 lbalen->lba = lba; 9074 lbalen->len = num_blocks; 9075 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 9076 9077 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9078 ctsio->kern_rel_offset = 0; 9079 9080 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 9081 9082 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9083 9084 return (retval); 9085 } 9086 9087 static int 9088 ctl_cnw_cont(union ctl_io *io) 9089 { 9090 struct ctl_scsiio *ctsio; 9091 struct ctl_lun *lun; 9092 struct ctl_lba_len_flags *lbalen; 9093 int retval; 9094 9095 ctsio = &io->scsiio; 9096 ctsio->io_hdr.status = CTL_STATUS_NONE; 9097 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 9098 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9099 lbalen = (struct ctl_lba_len_flags *) 9100 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9101 lbalen->flags &= ~CTL_LLF_COMPARE; 9102 lbalen->flags |= CTL_LLF_WRITE; 9103 9104 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 9105 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9106 return (retval); 9107 } 9108 9109 int 9110 ctl_cnw(struct ctl_scsiio *ctsio) 9111 { 9112 struct ctl_lun *lun; 9113 struct ctl_lba_len_flags *lbalen; 9114 uint64_t lba; 9115 uint32_t num_blocks; 9116 int flags, retval; 9117 9118 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9119 9120 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 9121 9122 flags = 0; 9123 retval = CTL_RETVAL_COMPLETE; 9124 9125 switch (ctsio->cdb[0]) { 9126 case COMPARE_AND_WRITE: { 9127 struct scsi_compare_and_write *cdb; 9128 9129 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 9130 if (cdb->byte2 & SRW10_FUA) 9131 flags |= CTL_LLF_FUA; 9132 if (cdb->byte2 & SRW10_DPO) 9133 flags |= CTL_LLF_DPO; 9134 lba = scsi_8btou64(cdb->addr); 9135 num_blocks = cdb->length; 9136 break; 9137 } 9138 default: 9139 /* 9140 * We got a command we don't support. This shouldn't 9141 * happen, commands should be filtered out above us. 9142 */ 9143 ctl_set_invalid_opcode(ctsio); 9144 ctl_done((union ctl_io *)ctsio); 9145 9146 return (CTL_RETVAL_COMPLETE); 9147 break; /* NOTREACHED */ 9148 } 9149 9150 /* 9151 * The first check is to make sure we're in bounds, the second 9152 * check is to catch wrap-around problems. If the lba + num blocks 9153 * is less than the lba, then we've wrapped around and the block 9154 * range is invalid anyway. 9155 */ 9156 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9157 || ((lba + num_blocks) < lba)) { 9158 ctl_set_lba_out_of_range(ctsio); 9159 ctl_done((union ctl_io *)ctsio); 9160 return (CTL_RETVAL_COMPLETE); 9161 } 9162 9163 /* 9164 * According to SBC-3, a transfer length of 0 is not an error. 9165 */ 9166 if (num_blocks == 0) { 9167 ctl_set_success(ctsio); 9168 ctl_done((union ctl_io *)ctsio); 9169 return (CTL_RETVAL_COMPLETE); 9170 } 9171 9172 /* Set FUA if write cache is disabled. */ 9173 if ((lun->mode_pages.caching_page[CTL_PAGE_CURRENT].flags1 & 9174 SCP_WCE) == 0) 9175 flags |= CTL_LLF_FUA; 9176 9177 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 9178 ctsio->kern_rel_offset = 0; 9179 9180 /* 9181 * Set the IO_CONT flag, so that if this I/O gets passed to 9182 * ctl_data_submit_done(), it'll get passed back to 9183 * ctl_ctl_cnw_cont() for further processing. 9184 */ 9185 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 9186 ctsio->io_cont = ctl_cnw_cont; 9187 9188 lbalen = (struct ctl_lba_len_flags *) 9189 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9190 lbalen->lba = lba; 9191 lbalen->len = num_blocks; 9192 lbalen->flags = CTL_LLF_COMPARE | flags; 9193 9194 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 9195 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9196 return (retval); 9197 } 9198 9199 int 9200 ctl_verify(struct ctl_scsiio *ctsio) 9201 { 9202 struct ctl_lun *lun; 9203 struct ctl_lba_len_flags *lbalen; 9204 uint64_t lba; 9205 uint32_t num_blocks; 9206 int bytchk, flags; 9207 int retval; 9208 9209 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9210 9211 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 9212 9213 bytchk = 0; 9214 flags = CTL_LLF_FUA; 9215 retval = CTL_RETVAL_COMPLETE; 9216 9217 switch (ctsio->cdb[0]) { 9218 case VERIFY_10: { 9219 struct scsi_verify_10 *cdb; 9220 9221 cdb = (struct scsi_verify_10 *)ctsio->cdb; 9222 if (cdb->byte2 & SVFY_BYTCHK) 9223 bytchk = 1; 9224 if (cdb->byte2 & SVFY_DPO) 9225 flags |= CTL_LLF_DPO; 9226 lba = scsi_4btoul(cdb->addr); 9227 num_blocks = scsi_2btoul(cdb->length); 9228 break; 9229 } 9230 case VERIFY_12: { 9231 struct scsi_verify_12 *cdb; 9232 9233 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9234 if (cdb->byte2 & SVFY_BYTCHK) 9235 bytchk = 1; 9236 if (cdb->byte2 & SVFY_DPO) 9237 flags |= CTL_LLF_DPO; 9238 lba = scsi_4btoul(cdb->addr); 9239 num_blocks = scsi_4btoul(cdb->length); 9240 break; 9241 } 9242 case VERIFY_16: { 9243 struct scsi_rw_16 *cdb; 9244 9245 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9246 if (cdb->byte2 & SVFY_BYTCHK) 9247 bytchk = 1; 9248 if (cdb->byte2 & SVFY_DPO) 9249 flags |= CTL_LLF_DPO; 9250 lba = scsi_8btou64(cdb->addr); 9251 num_blocks = scsi_4btoul(cdb->length); 9252 break; 9253 } 9254 default: 9255 /* 9256 * We got a command we don't support. This shouldn't 9257 * happen, commands should be filtered out above us. 9258 */ 9259 ctl_set_invalid_opcode(ctsio); 9260 ctl_done((union ctl_io *)ctsio); 9261 return (CTL_RETVAL_COMPLETE); 9262 } 9263 9264 /* 9265 * The first check is to make sure we're in bounds, the second 9266 * check is to catch wrap-around problems. If the lba + num blocks 9267 * is less than the lba, then we've wrapped around and the block 9268 * range is invalid anyway. 9269 */ 9270 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9271 || ((lba + num_blocks) < lba)) { 9272 ctl_set_lba_out_of_range(ctsio); 9273 ctl_done((union ctl_io *)ctsio); 9274 return (CTL_RETVAL_COMPLETE); 9275 } 9276 9277 /* 9278 * According to SBC-3, a transfer length of 0 is not an error. 9279 */ 9280 if (num_blocks == 0) { 9281 ctl_set_success(ctsio); 9282 ctl_done((union ctl_io *)ctsio); 9283 return (CTL_RETVAL_COMPLETE); 9284 } 9285 9286 lbalen = (struct ctl_lba_len_flags *) 9287 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9288 lbalen->lba = lba; 9289 lbalen->len = num_blocks; 9290 if (bytchk) { 9291 lbalen->flags = CTL_LLF_COMPARE | flags; 9292 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9293 } else { 9294 lbalen->flags = CTL_LLF_VERIFY | flags; 9295 ctsio->kern_total_len = 0; 9296 } 9297 ctsio->kern_rel_offset = 0; 9298 9299 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9300 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9301 return (retval); 9302 } 9303 9304 int 9305 ctl_report_luns(struct ctl_scsiio *ctsio) 9306 { 9307 struct scsi_report_luns *cdb; 9308 struct scsi_report_luns_data *lun_data; 9309 struct ctl_lun *lun, *request_lun; 9310 int num_luns, retval; 9311 uint32_t alloc_len, lun_datalen; 9312 int num_filled, well_known; 9313 uint32_t initidx, targ_lun_id, lun_id; 9314 9315 retval = CTL_RETVAL_COMPLETE; 9316 well_known = 0; 9317 9318 cdb = (struct scsi_report_luns *)ctsio->cdb; 9319 9320 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9321 9322 mtx_lock(&control_softc->ctl_lock); 9323 num_luns = control_softc->num_luns; 9324 mtx_unlock(&control_softc->ctl_lock); 9325 9326 switch (cdb->select_report) { 9327 case RPL_REPORT_DEFAULT: 9328 case RPL_REPORT_ALL: 9329 break; 9330 case RPL_REPORT_WELLKNOWN: 9331 well_known = 1; 9332 num_luns = 0; 9333 break; 9334 default: 9335 ctl_set_invalid_field(ctsio, 9336 /*sks_valid*/ 1, 9337 /*command*/ 1, 9338 /*field*/ 2, 9339 /*bit_valid*/ 0, 9340 /*bit*/ 0); 9341 ctl_done((union ctl_io *)ctsio); 9342 return (retval); 9343 break; /* NOTREACHED */ 9344 } 9345 9346 alloc_len = scsi_4btoul(cdb->length); 9347 /* 9348 * The initiator has to allocate at least 16 bytes for this request, 9349 * so he can at least get the header and the first LUN. Otherwise 9350 * we reject the request (per SPC-3 rev 14, section 6.21). 9351 */ 9352 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9353 sizeof(struct scsi_report_luns_lundata))) { 9354 ctl_set_invalid_field(ctsio, 9355 /*sks_valid*/ 1, 9356 /*command*/ 1, 9357 /*field*/ 6, 9358 /*bit_valid*/ 0, 9359 /*bit*/ 0); 9360 ctl_done((union ctl_io *)ctsio); 9361 return (retval); 9362 } 9363 9364 request_lun = (struct ctl_lun *) 9365 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9366 9367 lun_datalen = sizeof(*lun_data) + 9368 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9369 9370 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9371 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9372 ctsio->kern_sg_entries = 0; 9373 9374 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9375 9376 mtx_lock(&control_softc->ctl_lock); 9377 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9378 lun_id = ctl_map_lun(ctsio->io_hdr.nexus.targ_port, targ_lun_id); 9379 if (lun_id >= CTL_MAX_LUNS) 9380 continue; 9381 lun = control_softc->ctl_luns[lun_id]; 9382 if (lun == NULL) 9383 continue; 9384 9385 if (targ_lun_id <= 0xff) { 9386 /* 9387 * Peripheral addressing method, bus number 0. 9388 */ 9389 lun_data->luns[num_filled].lundata[0] = 9390 RPL_LUNDATA_ATYP_PERIPH; 9391 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9392 num_filled++; 9393 } else if (targ_lun_id <= 0x3fff) { 9394 /* 9395 * Flat addressing method. 9396 */ 9397 lun_data->luns[num_filled].lundata[0] = 9398 RPL_LUNDATA_ATYP_FLAT | (targ_lun_id >> 8); 9399 lun_data->luns[num_filled].lundata[1] = 9400 (targ_lun_id & 0xff); 9401 num_filled++; 9402 } else if (targ_lun_id <= 0xffffff) { 9403 /* 9404 * Extended flat addressing method. 9405 */ 9406 lun_data->luns[num_filled].lundata[0] = 9407 RPL_LUNDATA_ATYP_EXTLUN | 0x12; 9408 scsi_ulto3b(targ_lun_id, 9409 &lun_data->luns[num_filled].lundata[1]); 9410 num_filled++; 9411 } else { 9412 printf("ctl_report_luns: bogus LUN number %jd, " 9413 "skipping\n", (intmax_t)targ_lun_id); 9414 } 9415 /* 9416 * According to SPC-3, rev 14 section 6.21: 9417 * 9418 * "The execution of a REPORT LUNS command to any valid and 9419 * installed logical unit shall clear the REPORTED LUNS DATA 9420 * HAS CHANGED unit attention condition for all logical 9421 * units of that target with respect to the requesting 9422 * initiator. A valid and installed logical unit is one 9423 * having a PERIPHERAL QUALIFIER of 000b in the standard 9424 * INQUIRY data (see 6.4.2)." 9425 * 9426 * If request_lun is NULL, the LUN this report luns command 9427 * was issued to is either disabled or doesn't exist. In that 9428 * case, we shouldn't clear any pending lun change unit 9429 * attention. 9430 */ 9431 if (request_lun != NULL) { 9432 mtx_lock(&lun->lun_lock); 9433 ctl_clr_ua(lun, initidx, CTL_UA_RES_RELEASE); 9434 mtx_unlock(&lun->lun_lock); 9435 } 9436 } 9437 mtx_unlock(&control_softc->ctl_lock); 9438 9439 /* 9440 * It's quite possible that we've returned fewer LUNs than we allocated 9441 * space for. Trim it. 9442 */ 9443 lun_datalen = sizeof(*lun_data) + 9444 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9445 9446 if (lun_datalen < alloc_len) { 9447 ctsio->residual = alloc_len - lun_datalen; 9448 ctsio->kern_data_len = lun_datalen; 9449 ctsio->kern_total_len = lun_datalen; 9450 } else { 9451 ctsio->residual = 0; 9452 ctsio->kern_data_len = alloc_len; 9453 ctsio->kern_total_len = alloc_len; 9454 } 9455 ctsio->kern_data_resid = 0; 9456 ctsio->kern_rel_offset = 0; 9457 ctsio->kern_sg_entries = 0; 9458 9459 /* 9460 * We set this to the actual data length, regardless of how much 9461 * space we actually have to return results. If the user looks at 9462 * this value, he'll know whether or not he allocated enough space 9463 * and reissue the command if necessary. We don't support well 9464 * known logical units, so if the user asks for that, return none. 9465 */ 9466 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9467 9468 /* 9469 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9470 * this request. 9471 */ 9472 ctl_set_success(ctsio); 9473 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9474 ctsio->be_move_done = ctl_config_move_done; 9475 ctl_datamove((union ctl_io *)ctsio); 9476 return (retval); 9477 } 9478 9479 int 9480 ctl_request_sense(struct ctl_scsiio *ctsio) 9481 { 9482 struct scsi_request_sense *cdb; 9483 struct scsi_sense_data *sense_ptr; 9484 struct ctl_lun *lun; 9485 uint32_t initidx; 9486 int have_error; 9487 scsi_sense_data_type sense_format; 9488 ctl_ua_type ua_type; 9489 9490 cdb = (struct scsi_request_sense *)ctsio->cdb; 9491 9492 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9493 9494 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9495 9496 /* 9497 * Determine which sense format the user wants. 9498 */ 9499 if (cdb->byte2 & SRS_DESC) 9500 sense_format = SSD_TYPE_DESC; 9501 else 9502 sense_format = SSD_TYPE_FIXED; 9503 9504 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9505 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9506 ctsio->kern_sg_entries = 0; 9507 9508 /* 9509 * struct scsi_sense_data, which is currently set to 256 bytes, is 9510 * larger than the largest allowed value for the length field in the 9511 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9512 */ 9513 ctsio->residual = 0; 9514 ctsio->kern_data_len = cdb->length; 9515 ctsio->kern_total_len = cdb->length; 9516 9517 ctsio->kern_data_resid = 0; 9518 ctsio->kern_rel_offset = 0; 9519 ctsio->kern_sg_entries = 0; 9520 9521 /* 9522 * If we don't have a LUN, we don't have any pending sense. 9523 */ 9524 if (lun == NULL) 9525 goto no_sense; 9526 9527 have_error = 0; 9528 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9529 /* 9530 * Check for pending sense, and then for pending unit attentions. 9531 * Pending sense gets returned first, then pending unit attentions. 9532 */ 9533 mtx_lock(&lun->lun_lock); 9534 #ifdef CTL_WITH_CA 9535 if (ctl_is_set(lun->have_ca, initidx)) { 9536 scsi_sense_data_type stored_format; 9537 9538 /* 9539 * Check to see which sense format was used for the stored 9540 * sense data. 9541 */ 9542 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9543 9544 /* 9545 * If the user requested a different sense format than the 9546 * one we stored, then we need to convert it to the other 9547 * format. If we're going from descriptor to fixed format 9548 * sense data, we may lose things in translation, depending 9549 * on what options were used. 9550 * 9551 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9552 * for some reason we'll just copy it out as-is. 9553 */ 9554 if ((stored_format == SSD_TYPE_FIXED) 9555 && (sense_format == SSD_TYPE_DESC)) 9556 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9557 &lun->pending_sense[initidx], 9558 (struct scsi_sense_data_desc *)sense_ptr); 9559 else if ((stored_format == SSD_TYPE_DESC) 9560 && (sense_format == SSD_TYPE_FIXED)) 9561 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9562 &lun->pending_sense[initidx], 9563 (struct scsi_sense_data_fixed *)sense_ptr); 9564 else 9565 memcpy(sense_ptr, &lun->pending_sense[initidx], 9566 ctl_min(sizeof(*sense_ptr), 9567 sizeof(lun->pending_sense[initidx]))); 9568 9569 ctl_clear_mask(lun->have_ca, initidx); 9570 have_error = 1; 9571 } else 9572 #endif 9573 { 9574 ua_type = ctl_build_ua(lun, initidx, sense_ptr, sense_format); 9575 if (ua_type != CTL_UA_NONE) 9576 have_error = 1; 9577 } 9578 mtx_unlock(&lun->lun_lock); 9579 9580 /* 9581 * We already have a pending error, return it. 9582 */ 9583 if (have_error != 0) { 9584 /* 9585 * We report the SCSI status as OK, since the status of the 9586 * request sense command itself is OK. 9587 * We report 0 for the sense length, because we aren't doing 9588 * autosense in this case. We're reporting sense as 9589 * parameter data. 9590 */ 9591 ctl_set_success(ctsio); 9592 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9593 ctsio->be_move_done = ctl_config_move_done; 9594 ctl_datamove((union ctl_io *)ctsio); 9595 return (CTL_RETVAL_COMPLETE); 9596 } 9597 9598 no_sense: 9599 9600 /* 9601 * No sense information to report, so we report that everything is 9602 * okay. 9603 */ 9604 ctl_set_sense_data(sense_ptr, 9605 lun, 9606 sense_format, 9607 /*current_error*/ 1, 9608 /*sense_key*/ SSD_KEY_NO_SENSE, 9609 /*asc*/ 0x00, 9610 /*ascq*/ 0x00, 9611 SSD_ELEM_NONE); 9612 9613 /* 9614 * We report 0 for the sense length, because we aren't doing 9615 * autosense in this case. We're reporting sense as parameter data. 9616 */ 9617 ctl_set_success(ctsio); 9618 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9619 ctsio->be_move_done = ctl_config_move_done; 9620 ctl_datamove((union ctl_io *)ctsio); 9621 return (CTL_RETVAL_COMPLETE); 9622 } 9623 9624 int 9625 ctl_tur(struct ctl_scsiio *ctsio) 9626 { 9627 9628 CTL_DEBUG_PRINT(("ctl_tur\n")); 9629 9630 ctl_set_success(ctsio); 9631 ctl_done((union ctl_io *)ctsio); 9632 9633 return (CTL_RETVAL_COMPLETE); 9634 } 9635 9636 #ifdef notyet 9637 static int 9638 ctl_cmddt_inquiry(struct ctl_scsiio *ctsio) 9639 { 9640 9641 } 9642 #endif 9643 9644 static int 9645 ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9646 { 9647 struct scsi_vpd_supported_pages *pages; 9648 int sup_page_size; 9649 struct ctl_lun *lun; 9650 9651 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9652 9653 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9654 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9655 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9656 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9657 ctsio->kern_sg_entries = 0; 9658 9659 if (sup_page_size < alloc_len) { 9660 ctsio->residual = alloc_len - sup_page_size; 9661 ctsio->kern_data_len = sup_page_size; 9662 ctsio->kern_total_len = sup_page_size; 9663 } else { 9664 ctsio->residual = 0; 9665 ctsio->kern_data_len = alloc_len; 9666 ctsio->kern_total_len = alloc_len; 9667 } 9668 ctsio->kern_data_resid = 0; 9669 ctsio->kern_rel_offset = 0; 9670 ctsio->kern_sg_entries = 0; 9671 9672 /* 9673 * The control device is always connected. The disk device, on the 9674 * other hand, may not be online all the time. Need to change this 9675 * to figure out whether the disk device is actually online or not. 9676 */ 9677 if (lun != NULL) 9678 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9679 lun->be_lun->lun_type; 9680 else 9681 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9682 9683 pages->length = SCSI_EVPD_NUM_SUPPORTED_PAGES; 9684 /* Supported VPD pages */ 9685 pages->page_list[0] = SVPD_SUPPORTED_PAGES; 9686 /* Serial Number */ 9687 pages->page_list[1] = SVPD_UNIT_SERIAL_NUMBER; 9688 /* Device Identification */ 9689 pages->page_list[2] = SVPD_DEVICE_ID; 9690 /* Extended INQUIRY Data */ 9691 pages->page_list[3] = SVPD_EXTENDED_INQUIRY_DATA; 9692 /* Mode Page Policy */ 9693 pages->page_list[4] = SVPD_MODE_PAGE_POLICY; 9694 /* SCSI Ports */ 9695 pages->page_list[5] = SVPD_SCSI_PORTS; 9696 /* Third-party Copy */ 9697 pages->page_list[6] = SVPD_SCSI_TPC; 9698 /* Block limits */ 9699 pages->page_list[7] = SVPD_BLOCK_LIMITS; 9700 /* Block Device Characteristics */ 9701 pages->page_list[8] = SVPD_BDC; 9702 /* Logical Block Provisioning */ 9703 pages->page_list[9] = SVPD_LBP; 9704 9705 ctl_set_success(ctsio); 9706 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9707 ctsio->be_move_done = ctl_config_move_done; 9708 ctl_datamove((union ctl_io *)ctsio); 9709 return (CTL_RETVAL_COMPLETE); 9710 } 9711 9712 static int 9713 ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9714 { 9715 struct scsi_vpd_unit_serial_number *sn_ptr; 9716 struct ctl_lun *lun; 9717 int data_len; 9718 9719 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9720 9721 data_len = 4 + CTL_SN_LEN; 9722 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9723 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9724 if (data_len < alloc_len) { 9725 ctsio->residual = alloc_len - data_len; 9726 ctsio->kern_data_len = data_len; 9727 ctsio->kern_total_len = data_len; 9728 } else { 9729 ctsio->residual = 0; 9730 ctsio->kern_data_len = alloc_len; 9731 ctsio->kern_total_len = alloc_len; 9732 } 9733 ctsio->kern_data_resid = 0; 9734 ctsio->kern_rel_offset = 0; 9735 ctsio->kern_sg_entries = 0; 9736 9737 /* 9738 * The control device is always connected. The disk device, on the 9739 * other hand, may not be online all the time. Need to change this 9740 * to figure out whether the disk device is actually online or not. 9741 */ 9742 if (lun != NULL) 9743 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9744 lun->be_lun->lun_type; 9745 else 9746 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9747 9748 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9749 sn_ptr->length = CTL_SN_LEN; 9750 /* 9751 * If we don't have a LUN, we just leave the serial number as 9752 * all spaces. 9753 */ 9754 if (lun != NULL) { 9755 strncpy((char *)sn_ptr->serial_num, 9756 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9757 } else 9758 memset(sn_ptr->serial_num, 0x20, CTL_SN_LEN); 9759 9760 ctl_set_success(ctsio); 9761 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9762 ctsio->be_move_done = ctl_config_move_done; 9763 ctl_datamove((union ctl_io *)ctsio); 9764 return (CTL_RETVAL_COMPLETE); 9765 } 9766 9767 9768 static int 9769 ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9770 { 9771 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9772 struct ctl_lun *lun; 9773 int data_len; 9774 9775 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9776 9777 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9778 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9779 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9780 ctsio->kern_sg_entries = 0; 9781 9782 if (data_len < alloc_len) { 9783 ctsio->residual = alloc_len - data_len; 9784 ctsio->kern_data_len = data_len; 9785 ctsio->kern_total_len = data_len; 9786 } else { 9787 ctsio->residual = 0; 9788 ctsio->kern_data_len = alloc_len; 9789 ctsio->kern_total_len = alloc_len; 9790 } 9791 ctsio->kern_data_resid = 0; 9792 ctsio->kern_rel_offset = 0; 9793 ctsio->kern_sg_entries = 0; 9794 9795 /* 9796 * The control device is always connected. The disk device, on the 9797 * other hand, may not be online all the time. 9798 */ 9799 if (lun != NULL) 9800 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9801 lun->be_lun->lun_type; 9802 else 9803 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9804 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9805 eid_ptr->page_length = data_len - 4; 9806 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9807 eid_ptr->flags3 = SVPD_EID_V_SUP; 9808 9809 ctl_set_success(ctsio); 9810 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9811 ctsio->be_move_done = ctl_config_move_done; 9812 ctl_datamove((union ctl_io *)ctsio); 9813 return (CTL_RETVAL_COMPLETE); 9814 } 9815 9816 static int 9817 ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9818 { 9819 struct scsi_vpd_mode_page_policy *mpp_ptr; 9820 struct ctl_lun *lun; 9821 int data_len; 9822 9823 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9824 9825 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9826 sizeof(struct scsi_vpd_mode_page_policy_descr); 9827 9828 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9829 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9830 ctsio->kern_sg_entries = 0; 9831 9832 if (data_len < alloc_len) { 9833 ctsio->residual = alloc_len - data_len; 9834 ctsio->kern_data_len = data_len; 9835 ctsio->kern_total_len = data_len; 9836 } else { 9837 ctsio->residual = 0; 9838 ctsio->kern_data_len = alloc_len; 9839 ctsio->kern_total_len = alloc_len; 9840 } 9841 ctsio->kern_data_resid = 0; 9842 ctsio->kern_rel_offset = 0; 9843 ctsio->kern_sg_entries = 0; 9844 9845 /* 9846 * The control device is always connected. The disk device, on the 9847 * other hand, may not be online all the time. 9848 */ 9849 if (lun != NULL) 9850 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9851 lun->be_lun->lun_type; 9852 else 9853 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9854 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9855 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9856 mpp_ptr->descr[0].page_code = 0x3f; 9857 mpp_ptr->descr[0].subpage_code = 0xff; 9858 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9859 9860 ctl_set_success(ctsio); 9861 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9862 ctsio->be_move_done = ctl_config_move_done; 9863 ctl_datamove((union ctl_io *)ctsio); 9864 return (CTL_RETVAL_COMPLETE); 9865 } 9866 9867 static int 9868 ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9869 { 9870 struct scsi_vpd_device_id *devid_ptr; 9871 struct scsi_vpd_id_descriptor *desc; 9872 struct ctl_softc *ctl_softc; 9873 struct ctl_lun *lun; 9874 struct ctl_port *port; 9875 int data_len; 9876 uint8_t proto; 9877 9878 ctl_softc = control_softc; 9879 9880 port = ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]; 9881 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9882 9883 data_len = sizeof(struct scsi_vpd_device_id) + 9884 sizeof(struct scsi_vpd_id_descriptor) + 9885 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9886 sizeof(struct scsi_vpd_id_descriptor) + 9887 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9888 if (lun && lun->lun_devid) 9889 data_len += lun->lun_devid->len; 9890 if (port->port_devid) 9891 data_len += port->port_devid->len; 9892 if (port->target_devid) 9893 data_len += port->target_devid->len; 9894 9895 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9896 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9897 ctsio->kern_sg_entries = 0; 9898 9899 if (data_len < alloc_len) { 9900 ctsio->residual = alloc_len - data_len; 9901 ctsio->kern_data_len = data_len; 9902 ctsio->kern_total_len = data_len; 9903 } else { 9904 ctsio->residual = 0; 9905 ctsio->kern_data_len = alloc_len; 9906 ctsio->kern_total_len = alloc_len; 9907 } 9908 ctsio->kern_data_resid = 0; 9909 ctsio->kern_rel_offset = 0; 9910 ctsio->kern_sg_entries = 0; 9911 9912 /* 9913 * The control device is always connected. The disk device, on the 9914 * other hand, may not be online all the time. 9915 */ 9916 if (lun != NULL) 9917 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9918 lun->be_lun->lun_type; 9919 else 9920 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9921 devid_ptr->page_code = SVPD_DEVICE_ID; 9922 scsi_ulto2b(data_len - 4, devid_ptr->length); 9923 9924 if (port->port_type == CTL_PORT_FC) 9925 proto = SCSI_PROTO_FC << 4; 9926 else if (port->port_type == CTL_PORT_ISCSI) 9927 proto = SCSI_PROTO_ISCSI << 4; 9928 else 9929 proto = SCSI_PROTO_SPI << 4; 9930 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9931 9932 /* 9933 * We're using a LUN association here. i.e., this device ID is a 9934 * per-LUN identifier. 9935 */ 9936 if (lun && lun->lun_devid) { 9937 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9938 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9939 lun->lun_devid->len); 9940 } 9941 9942 /* 9943 * This is for the WWPN which is a port association. 9944 */ 9945 if (port->port_devid) { 9946 memcpy(desc, port->port_devid->data, port->port_devid->len); 9947 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9948 port->port_devid->len); 9949 } 9950 9951 /* 9952 * This is for the Relative Target Port(type 4h) identifier 9953 */ 9954 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9955 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9956 SVPD_ID_TYPE_RELTARG; 9957 desc->length = 4; 9958 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9959 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9960 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9961 9962 /* 9963 * This is for the Target Port Group(type 5h) identifier 9964 */ 9965 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9966 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9967 SVPD_ID_TYPE_TPORTGRP; 9968 desc->length = 4; 9969 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS + 1, 9970 &desc->identifier[2]); 9971 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9972 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9973 9974 /* 9975 * This is for the Target identifier 9976 */ 9977 if (port->target_devid) { 9978 memcpy(desc, port->target_devid->data, port->target_devid->len); 9979 } 9980 9981 ctl_set_success(ctsio); 9982 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9983 ctsio->be_move_done = ctl_config_move_done; 9984 ctl_datamove((union ctl_io *)ctsio); 9985 return (CTL_RETVAL_COMPLETE); 9986 } 9987 9988 static int 9989 ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 9990 { 9991 struct ctl_softc *softc = control_softc; 9992 struct scsi_vpd_scsi_ports *sp; 9993 struct scsi_vpd_port_designation *pd; 9994 struct scsi_vpd_port_designation_cont *pdc; 9995 struct ctl_lun *lun; 9996 struct ctl_port *port; 9997 int data_len, num_target_ports, iid_len, id_len, g, pg, p; 9998 int num_target_port_groups; 9999 10000 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10001 10002 if (softc->is_single) 10003 num_target_port_groups = 1; 10004 else 10005 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 10006 num_target_ports = 0; 10007 iid_len = 0; 10008 id_len = 0; 10009 mtx_lock(&softc->ctl_lock); 10010 STAILQ_FOREACH(port, &softc->port_list, links) { 10011 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10012 continue; 10013 if (lun != NULL && 10014 ctl_map_lun_back(port->targ_port, lun->lun) >= 10015 CTL_MAX_LUNS) 10016 continue; 10017 num_target_ports++; 10018 if (port->init_devid) 10019 iid_len += port->init_devid->len; 10020 if (port->port_devid) 10021 id_len += port->port_devid->len; 10022 } 10023 mtx_unlock(&softc->ctl_lock); 10024 10025 data_len = sizeof(struct scsi_vpd_scsi_ports) + num_target_port_groups * 10026 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 10027 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 10028 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10029 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 10030 ctsio->kern_sg_entries = 0; 10031 10032 if (data_len < alloc_len) { 10033 ctsio->residual = alloc_len - data_len; 10034 ctsio->kern_data_len = data_len; 10035 ctsio->kern_total_len = data_len; 10036 } else { 10037 ctsio->residual = 0; 10038 ctsio->kern_data_len = alloc_len; 10039 ctsio->kern_total_len = alloc_len; 10040 } 10041 ctsio->kern_data_resid = 0; 10042 ctsio->kern_rel_offset = 0; 10043 ctsio->kern_sg_entries = 0; 10044 10045 /* 10046 * The control device is always connected. The disk device, on the 10047 * other hand, may not be online all the time. Need to change this 10048 * to figure out whether the disk device is actually online or not. 10049 */ 10050 if (lun != NULL) 10051 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 10052 lun->be_lun->lun_type; 10053 else 10054 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10055 10056 sp->page_code = SVPD_SCSI_PORTS; 10057 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 10058 sp->page_length); 10059 pd = &sp->design[0]; 10060 10061 mtx_lock(&softc->ctl_lock); 10062 pg = softc->port_offset / CTL_MAX_PORTS; 10063 for (g = 0; g < num_target_port_groups; g++) { 10064 STAILQ_FOREACH(port, &softc->port_list, links) { 10065 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10066 continue; 10067 if (lun != NULL && 10068 ctl_map_lun_back(port->targ_port, lun->lun) >= 10069 CTL_MAX_LUNS) 10070 continue; 10071 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 10072 scsi_ulto2b(p, pd->relative_port_id); 10073 if (port->init_devid && g == pg) { 10074 iid_len = port->init_devid->len; 10075 memcpy(pd->initiator_transportid, 10076 port->init_devid->data, port->init_devid->len); 10077 } else 10078 iid_len = 0; 10079 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 10080 pdc = (struct scsi_vpd_port_designation_cont *) 10081 (&pd->initiator_transportid[iid_len]); 10082 if (port->port_devid && g == pg) { 10083 id_len = port->port_devid->len; 10084 memcpy(pdc->target_port_descriptors, 10085 port->port_devid->data, port->port_devid->len); 10086 } else 10087 id_len = 0; 10088 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 10089 pd = (struct scsi_vpd_port_designation *) 10090 ((uint8_t *)pdc->target_port_descriptors + id_len); 10091 } 10092 } 10093 mtx_unlock(&softc->ctl_lock); 10094 10095 ctl_set_success(ctsio); 10096 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10097 ctsio->be_move_done = ctl_config_move_done; 10098 ctl_datamove((union ctl_io *)ctsio); 10099 return (CTL_RETVAL_COMPLETE); 10100 } 10101 10102 static int 10103 ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 10104 { 10105 struct scsi_vpd_block_limits *bl_ptr; 10106 struct ctl_lun *lun; 10107 int bs; 10108 10109 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10110 10111 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 10112 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 10113 ctsio->kern_sg_entries = 0; 10114 10115 if (sizeof(*bl_ptr) < alloc_len) { 10116 ctsio->residual = alloc_len - sizeof(*bl_ptr); 10117 ctsio->kern_data_len = sizeof(*bl_ptr); 10118 ctsio->kern_total_len = sizeof(*bl_ptr); 10119 } else { 10120 ctsio->residual = 0; 10121 ctsio->kern_data_len = alloc_len; 10122 ctsio->kern_total_len = alloc_len; 10123 } 10124 ctsio->kern_data_resid = 0; 10125 ctsio->kern_rel_offset = 0; 10126 ctsio->kern_sg_entries = 0; 10127 10128 /* 10129 * The control device is always connected. The disk device, on the 10130 * other hand, may not be online all the time. Need to change this 10131 * to figure out whether the disk device is actually online or not. 10132 */ 10133 if (lun != NULL) 10134 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10135 lun->be_lun->lun_type; 10136 else 10137 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10138 10139 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 10140 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 10141 bl_ptr->max_cmp_write_len = 0xff; 10142 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 10143 if (lun != NULL) { 10144 bs = lun->be_lun->blocksize; 10145 scsi_ulto4b(MAXPHYS / bs, bl_ptr->opt_txfer_len); 10146 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10147 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 10148 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 10149 if (lun->be_lun->pblockexp != 0) { 10150 scsi_ulto4b((1 << lun->be_lun->pblockexp), 10151 bl_ptr->opt_unmap_grain); 10152 scsi_ulto4b(0x80000000 | lun->be_lun->pblockoff, 10153 bl_ptr->unmap_grain_align); 10154 } 10155 } 10156 scsi_ulto4b(lun->be_lun->atomicblock, 10157 bl_ptr->max_atomic_transfer_length); 10158 scsi_ulto4b(0, bl_ptr->atomic_alignment); 10159 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 10160 } 10161 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 10162 10163 ctl_set_success(ctsio); 10164 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10165 ctsio->be_move_done = ctl_config_move_done; 10166 ctl_datamove((union ctl_io *)ctsio); 10167 return (CTL_RETVAL_COMPLETE); 10168 } 10169 10170 static int 10171 ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 10172 { 10173 struct scsi_vpd_block_device_characteristics *bdc_ptr; 10174 struct ctl_lun *lun; 10175 const char *value; 10176 u_int i; 10177 10178 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10179 10180 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 10181 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 10182 ctsio->kern_sg_entries = 0; 10183 10184 if (sizeof(*bdc_ptr) < alloc_len) { 10185 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 10186 ctsio->kern_data_len = sizeof(*bdc_ptr); 10187 ctsio->kern_total_len = sizeof(*bdc_ptr); 10188 } else { 10189 ctsio->residual = 0; 10190 ctsio->kern_data_len = alloc_len; 10191 ctsio->kern_total_len = alloc_len; 10192 } 10193 ctsio->kern_data_resid = 0; 10194 ctsio->kern_rel_offset = 0; 10195 ctsio->kern_sg_entries = 0; 10196 10197 /* 10198 * The control device is always connected. The disk device, on the 10199 * other hand, may not be online all the time. Need to change this 10200 * to figure out whether the disk device is actually online or not. 10201 */ 10202 if (lun != NULL) 10203 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10204 lun->be_lun->lun_type; 10205 else 10206 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10207 bdc_ptr->page_code = SVPD_BDC; 10208 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 10209 if (lun != NULL && 10210 (value = ctl_get_opt(&lun->be_lun->options, "rpm")) != NULL) 10211 i = strtol(value, NULL, 0); 10212 else 10213 i = CTL_DEFAULT_ROTATION_RATE; 10214 scsi_ulto2b(i, bdc_ptr->medium_rotation_rate); 10215 if (lun != NULL && 10216 (value = ctl_get_opt(&lun->be_lun->options, "formfactor")) != NULL) 10217 i = strtol(value, NULL, 0); 10218 else 10219 i = 0; 10220 bdc_ptr->wab_wac_ff = (i & 0x0f); 10221 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 10222 10223 ctl_set_success(ctsio); 10224 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10225 ctsio->be_move_done = ctl_config_move_done; 10226 ctl_datamove((union ctl_io *)ctsio); 10227 return (CTL_RETVAL_COMPLETE); 10228 } 10229 10230 static int 10231 ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10232 { 10233 struct scsi_vpd_logical_block_prov *lbp_ptr; 10234 struct ctl_lun *lun; 10235 10236 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10237 10238 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10239 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10240 ctsio->kern_sg_entries = 0; 10241 10242 if (sizeof(*lbp_ptr) < alloc_len) { 10243 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10244 ctsio->kern_data_len = sizeof(*lbp_ptr); 10245 ctsio->kern_total_len = sizeof(*lbp_ptr); 10246 } else { 10247 ctsio->residual = 0; 10248 ctsio->kern_data_len = alloc_len; 10249 ctsio->kern_total_len = alloc_len; 10250 } 10251 ctsio->kern_data_resid = 0; 10252 ctsio->kern_rel_offset = 0; 10253 ctsio->kern_sg_entries = 0; 10254 10255 /* 10256 * The control device is always connected. The disk device, on the 10257 * other hand, may not be online all the time. Need to change this 10258 * to figure out whether the disk device is actually online or not. 10259 */ 10260 if (lun != NULL) 10261 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10262 lun->be_lun->lun_type; 10263 else 10264 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10265 10266 lbp_ptr->page_code = SVPD_LBP; 10267 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10268 lbp_ptr->threshold_exponent = CTL_LBP_EXPONENT; 10269 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10270 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10271 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10272 lbp_ptr->prov_type = SVPD_LBP_THIN; 10273 } 10274 10275 ctl_set_success(ctsio); 10276 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10277 ctsio->be_move_done = ctl_config_move_done; 10278 ctl_datamove((union ctl_io *)ctsio); 10279 return (CTL_RETVAL_COMPLETE); 10280 } 10281 10282 static int 10283 ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10284 { 10285 struct scsi_inquiry *cdb; 10286 int alloc_len, retval; 10287 10288 cdb = (struct scsi_inquiry *)ctsio->cdb; 10289 10290 retval = CTL_RETVAL_COMPLETE; 10291 10292 alloc_len = scsi_2btoul(cdb->length); 10293 10294 switch (cdb->page_code) { 10295 case SVPD_SUPPORTED_PAGES: 10296 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10297 break; 10298 case SVPD_UNIT_SERIAL_NUMBER: 10299 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10300 break; 10301 case SVPD_DEVICE_ID: 10302 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10303 break; 10304 case SVPD_EXTENDED_INQUIRY_DATA: 10305 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10306 break; 10307 case SVPD_MODE_PAGE_POLICY: 10308 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10309 break; 10310 case SVPD_SCSI_PORTS: 10311 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10312 break; 10313 case SVPD_SCSI_TPC: 10314 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10315 break; 10316 case SVPD_BLOCK_LIMITS: 10317 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10318 break; 10319 case SVPD_BDC: 10320 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10321 break; 10322 case SVPD_LBP: 10323 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10324 break; 10325 default: 10326 ctl_set_invalid_field(ctsio, 10327 /*sks_valid*/ 1, 10328 /*command*/ 1, 10329 /*field*/ 2, 10330 /*bit_valid*/ 0, 10331 /*bit*/ 0); 10332 ctl_done((union ctl_io *)ctsio); 10333 retval = CTL_RETVAL_COMPLETE; 10334 break; 10335 } 10336 10337 return (retval); 10338 } 10339 10340 static int 10341 ctl_inquiry_std(struct ctl_scsiio *ctsio) 10342 { 10343 struct scsi_inquiry_data *inq_ptr; 10344 struct scsi_inquiry *cdb; 10345 struct ctl_softc *ctl_softc; 10346 struct ctl_lun *lun; 10347 char *val; 10348 uint32_t alloc_len, data_len; 10349 ctl_port_type port_type; 10350 10351 ctl_softc = control_softc; 10352 10353 /* 10354 * Figure out whether we're talking to a Fibre Channel port or not. 10355 * We treat the ioctl front end, and any SCSI adapters, as packetized 10356 * SCSI front ends. 10357 */ 10358 port_type = ctl_softc->ctl_ports[ 10359 ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]->port_type; 10360 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10361 port_type = CTL_PORT_SCSI; 10362 10363 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10364 cdb = (struct scsi_inquiry *)ctsio->cdb; 10365 alloc_len = scsi_2btoul(cdb->length); 10366 10367 /* 10368 * We malloc the full inquiry data size here and fill it 10369 * in. If the user only asks for less, we'll give him 10370 * that much. 10371 */ 10372 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10373 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10374 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10375 ctsio->kern_sg_entries = 0; 10376 ctsio->kern_data_resid = 0; 10377 ctsio->kern_rel_offset = 0; 10378 10379 if (data_len < alloc_len) { 10380 ctsio->residual = alloc_len - data_len; 10381 ctsio->kern_data_len = data_len; 10382 ctsio->kern_total_len = data_len; 10383 } else { 10384 ctsio->residual = 0; 10385 ctsio->kern_data_len = alloc_len; 10386 ctsio->kern_total_len = alloc_len; 10387 } 10388 10389 /* 10390 * If we have a LUN configured, report it as connected. Otherwise, 10391 * report that it is offline or no device is supported, depending 10392 * on the value of inquiry_pq_no_lun. 10393 * 10394 * According to the spec (SPC-4 r34), the peripheral qualifier 10395 * SID_QUAL_LU_OFFLINE (001b) is used in the following scenario: 10396 * 10397 * "A peripheral device having the specified peripheral device type 10398 * is not connected to this logical unit. However, the device 10399 * server is capable of supporting the specified peripheral device 10400 * type on this logical unit." 10401 * 10402 * According to the same spec, the peripheral qualifier 10403 * SID_QUAL_BAD_LU (011b) is used in this scenario: 10404 * 10405 * "The device server is not capable of supporting a peripheral 10406 * device on this logical unit. For this peripheral qualifier the 10407 * peripheral device type shall be set to 1Fh. All other peripheral 10408 * device type values are reserved for this peripheral qualifier." 10409 * 10410 * Given the text, it would seem that we probably want to report that 10411 * the LUN is offline here. There is no LUN connected, but we can 10412 * support a LUN at the given LUN number. 10413 * 10414 * In the real world, though, it sounds like things are a little 10415 * different: 10416 * 10417 * - Linux, when presented with a LUN with the offline peripheral 10418 * qualifier, will create an sg driver instance for it. So when 10419 * you attach it to CTL, you wind up with a ton of sg driver 10420 * instances. (One for every LUN that Linux bothered to probe.) 10421 * Linux does this despite the fact that it issues a REPORT LUNs 10422 * to LUN 0 to get the inventory of supported LUNs. 10423 * 10424 * - There is other anecdotal evidence (from Emulex folks) about 10425 * arrays that use the offline peripheral qualifier for LUNs that 10426 * are on the "passive" path in an active/passive array. 10427 * 10428 * So the solution is provide a hopefully reasonable default 10429 * (return bad/no LUN) and allow the user to change the behavior 10430 * with a tunable/sysctl variable. 10431 */ 10432 if (lun != NULL) 10433 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10434 lun->be_lun->lun_type; 10435 else if (ctl_softc->inquiry_pq_no_lun == 0) 10436 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10437 else 10438 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10439 10440 /* RMB in byte 2 is 0 */ 10441 inq_ptr->version = SCSI_REV_SPC4; 10442 10443 /* 10444 * According to SAM-3, even if a device only supports a single 10445 * level of LUN addressing, it should still set the HISUP bit: 10446 * 10447 * 4.9.1 Logical unit numbers overview 10448 * 10449 * All logical unit number formats described in this standard are 10450 * hierarchical in structure even when only a single level in that 10451 * hierarchy is used. The HISUP bit shall be set to one in the 10452 * standard INQUIRY data (see SPC-2) when any logical unit number 10453 * format described in this standard is used. Non-hierarchical 10454 * formats are outside the scope of this standard. 10455 * 10456 * Therefore we set the HiSup bit here. 10457 * 10458 * The reponse format is 2, per SPC-3. 10459 */ 10460 inq_ptr->response_format = SID_HiSup | 2; 10461 10462 inq_ptr->additional_length = data_len - 10463 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10464 CTL_DEBUG_PRINT(("additional_length = %d\n", 10465 inq_ptr->additional_length)); 10466 10467 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10468 /* 16 bit addressing */ 10469 if (port_type == CTL_PORT_SCSI) 10470 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10471 /* XXX set the SID_MultiP bit here if we're actually going to 10472 respond on multiple ports */ 10473 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10474 10475 /* 16 bit data bus, synchronous transfers */ 10476 if (port_type == CTL_PORT_SCSI) 10477 inq_ptr->flags = SID_WBus16 | SID_Sync; 10478 /* 10479 * XXX KDM do we want to support tagged queueing on the control 10480 * device at all? 10481 */ 10482 if ((lun == NULL) 10483 || (lun->be_lun->lun_type != T_PROCESSOR)) 10484 inq_ptr->flags |= SID_CmdQue; 10485 /* 10486 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10487 * We have 8 bytes for the vendor name, and 16 bytes for the device 10488 * name and 4 bytes for the revision. 10489 */ 10490 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10491 "vendor")) == NULL) { 10492 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10493 } else { 10494 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10495 strncpy(inq_ptr->vendor, val, 10496 min(sizeof(inq_ptr->vendor), strlen(val))); 10497 } 10498 if (lun == NULL) { 10499 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10500 sizeof(inq_ptr->product)); 10501 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10502 switch (lun->be_lun->lun_type) { 10503 case T_DIRECT: 10504 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10505 sizeof(inq_ptr->product)); 10506 break; 10507 case T_PROCESSOR: 10508 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10509 sizeof(inq_ptr->product)); 10510 break; 10511 default: 10512 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10513 sizeof(inq_ptr->product)); 10514 break; 10515 } 10516 } else { 10517 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10518 strncpy(inq_ptr->product, val, 10519 min(sizeof(inq_ptr->product), strlen(val))); 10520 } 10521 10522 /* 10523 * XXX make this a macro somewhere so it automatically gets 10524 * incremented when we make changes. 10525 */ 10526 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10527 "revision")) == NULL) { 10528 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10529 } else { 10530 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10531 strncpy(inq_ptr->revision, val, 10532 min(sizeof(inq_ptr->revision), strlen(val))); 10533 } 10534 10535 /* 10536 * For parallel SCSI, we support double transition and single 10537 * transition clocking. We also support QAS (Quick Arbitration 10538 * and Selection) and Information Unit transfers on both the 10539 * control and array devices. 10540 */ 10541 if (port_type == CTL_PORT_SCSI) 10542 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10543 SID_SPI_IUS; 10544 10545 /* SAM-5 (no version claimed) */ 10546 scsi_ulto2b(0x00A0, inq_ptr->version1); 10547 /* SPC-4 (no version claimed) */ 10548 scsi_ulto2b(0x0460, inq_ptr->version2); 10549 if (port_type == CTL_PORT_FC) { 10550 /* FCP-2 ANSI INCITS.350:2003 */ 10551 scsi_ulto2b(0x0917, inq_ptr->version3); 10552 } else if (port_type == CTL_PORT_SCSI) { 10553 /* SPI-4 ANSI INCITS.362:200x */ 10554 scsi_ulto2b(0x0B56, inq_ptr->version3); 10555 } else if (port_type == CTL_PORT_ISCSI) { 10556 /* iSCSI (no version claimed) */ 10557 scsi_ulto2b(0x0960, inq_ptr->version3); 10558 } else if (port_type == CTL_PORT_SAS) { 10559 /* SAS (no version claimed) */ 10560 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10561 } 10562 10563 if (lun == NULL) { 10564 /* SBC-4 (no version claimed) */ 10565 scsi_ulto2b(0x0600, inq_ptr->version4); 10566 } else { 10567 switch (lun->be_lun->lun_type) { 10568 case T_DIRECT: 10569 /* SBC-4 (no version claimed) */ 10570 scsi_ulto2b(0x0600, inq_ptr->version4); 10571 break; 10572 case T_PROCESSOR: 10573 default: 10574 break; 10575 } 10576 } 10577 10578 ctl_set_success(ctsio); 10579 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10580 ctsio->be_move_done = ctl_config_move_done; 10581 ctl_datamove((union ctl_io *)ctsio); 10582 return (CTL_RETVAL_COMPLETE); 10583 } 10584 10585 int 10586 ctl_inquiry(struct ctl_scsiio *ctsio) 10587 { 10588 struct scsi_inquiry *cdb; 10589 int retval; 10590 10591 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10592 10593 cdb = (struct scsi_inquiry *)ctsio->cdb; 10594 if (cdb->byte2 & SI_EVPD) 10595 retval = ctl_inquiry_evpd(ctsio); 10596 else if (cdb->page_code == 0) 10597 retval = ctl_inquiry_std(ctsio); 10598 else { 10599 ctl_set_invalid_field(ctsio, 10600 /*sks_valid*/ 1, 10601 /*command*/ 1, 10602 /*field*/ 2, 10603 /*bit_valid*/ 0, 10604 /*bit*/ 0); 10605 ctl_done((union ctl_io *)ctsio); 10606 return (CTL_RETVAL_COMPLETE); 10607 } 10608 10609 return (retval); 10610 } 10611 10612 /* 10613 * For known CDB types, parse the LBA and length. 10614 */ 10615 static int 10616 ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10617 { 10618 if (io->io_hdr.io_type != CTL_IO_SCSI) 10619 return (1); 10620 10621 switch (io->scsiio.cdb[0]) { 10622 case COMPARE_AND_WRITE: { 10623 struct scsi_compare_and_write *cdb; 10624 10625 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10626 10627 *lba = scsi_8btou64(cdb->addr); 10628 *len = cdb->length; 10629 break; 10630 } 10631 case READ_6: 10632 case WRITE_6: { 10633 struct scsi_rw_6 *cdb; 10634 10635 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10636 10637 *lba = scsi_3btoul(cdb->addr); 10638 /* only 5 bits are valid in the most significant address byte */ 10639 *lba &= 0x1fffff; 10640 *len = cdb->length; 10641 break; 10642 } 10643 case READ_10: 10644 case WRITE_10: { 10645 struct scsi_rw_10 *cdb; 10646 10647 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10648 10649 *lba = scsi_4btoul(cdb->addr); 10650 *len = scsi_2btoul(cdb->length); 10651 break; 10652 } 10653 case WRITE_VERIFY_10: { 10654 struct scsi_write_verify_10 *cdb; 10655 10656 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10657 10658 *lba = scsi_4btoul(cdb->addr); 10659 *len = scsi_2btoul(cdb->length); 10660 break; 10661 } 10662 case READ_12: 10663 case WRITE_12: { 10664 struct scsi_rw_12 *cdb; 10665 10666 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10667 10668 *lba = scsi_4btoul(cdb->addr); 10669 *len = scsi_4btoul(cdb->length); 10670 break; 10671 } 10672 case WRITE_VERIFY_12: { 10673 struct scsi_write_verify_12 *cdb; 10674 10675 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10676 10677 *lba = scsi_4btoul(cdb->addr); 10678 *len = scsi_4btoul(cdb->length); 10679 break; 10680 } 10681 case READ_16: 10682 case WRITE_16: 10683 case WRITE_ATOMIC_16: { 10684 struct scsi_rw_16 *cdb; 10685 10686 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10687 10688 *lba = scsi_8btou64(cdb->addr); 10689 *len = scsi_4btoul(cdb->length); 10690 break; 10691 } 10692 case WRITE_VERIFY_16: { 10693 struct scsi_write_verify_16 *cdb; 10694 10695 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10696 10697 *lba = scsi_8btou64(cdb->addr); 10698 *len = scsi_4btoul(cdb->length); 10699 break; 10700 } 10701 case WRITE_SAME_10: { 10702 struct scsi_write_same_10 *cdb; 10703 10704 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10705 10706 *lba = scsi_4btoul(cdb->addr); 10707 *len = scsi_2btoul(cdb->length); 10708 break; 10709 } 10710 case WRITE_SAME_16: { 10711 struct scsi_write_same_16 *cdb; 10712 10713 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10714 10715 *lba = scsi_8btou64(cdb->addr); 10716 *len = scsi_4btoul(cdb->length); 10717 break; 10718 } 10719 case VERIFY_10: { 10720 struct scsi_verify_10 *cdb; 10721 10722 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10723 10724 *lba = scsi_4btoul(cdb->addr); 10725 *len = scsi_2btoul(cdb->length); 10726 break; 10727 } 10728 case VERIFY_12: { 10729 struct scsi_verify_12 *cdb; 10730 10731 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10732 10733 *lba = scsi_4btoul(cdb->addr); 10734 *len = scsi_4btoul(cdb->length); 10735 break; 10736 } 10737 case VERIFY_16: { 10738 struct scsi_verify_16 *cdb; 10739 10740 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10741 10742 *lba = scsi_8btou64(cdb->addr); 10743 *len = scsi_4btoul(cdb->length); 10744 break; 10745 } 10746 case UNMAP: { 10747 *lba = 0; 10748 *len = UINT64_MAX; 10749 break; 10750 } 10751 case SERVICE_ACTION_IN: { /* GET LBA STATUS */ 10752 struct scsi_get_lba_status *cdb; 10753 10754 cdb = (struct scsi_get_lba_status *)io->scsiio.cdb; 10755 *lba = scsi_8btou64(cdb->addr); 10756 *len = UINT32_MAX; 10757 break; 10758 } 10759 default: 10760 return (1); 10761 break; /* NOTREACHED */ 10762 } 10763 10764 return (0); 10765 } 10766 10767 static ctl_action 10768 ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2, 10769 bool seq) 10770 { 10771 uint64_t endlba1, endlba2; 10772 10773 endlba1 = lba1 + len1 - (seq ? 0 : 1); 10774 endlba2 = lba2 + len2 - 1; 10775 10776 if ((endlba1 < lba2) || (endlba2 < lba1)) 10777 return (CTL_ACTION_PASS); 10778 else 10779 return (CTL_ACTION_BLOCK); 10780 } 10781 10782 static int 10783 ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10784 { 10785 struct ctl_ptr_len_flags *ptrlen; 10786 struct scsi_unmap_desc *buf, *end, *range; 10787 uint64_t lba; 10788 uint32_t len; 10789 10790 /* If not UNMAP -- go other way. */ 10791 if (io->io_hdr.io_type != CTL_IO_SCSI || 10792 io->scsiio.cdb[0] != UNMAP) 10793 return (CTL_ACTION_ERROR); 10794 10795 /* If UNMAP without data -- block and wait for data. */ 10796 ptrlen = (struct ctl_ptr_len_flags *) 10797 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10798 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10799 ptrlen->ptr == NULL) 10800 return (CTL_ACTION_BLOCK); 10801 10802 /* UNMAP with data -- check for collision. */ 10803 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10804 end = buf + ptrlen->len / sizeof(*buf); 10805 for (range = buf; range < end; range++) { 10806 lba = scsi_8btou64(range->lba); 10807 len = scsi_4btoul(range->length); 10808 if ((lba < lba2 + len2) && (lba + len > lba2)) 10809 return (CTL_ACTION_BLOCK); 10810 } 10811 return (CTL_ACTION_PASS); 10812 } 10813 10814 static ctl_action 10815 ctl_extent_check(union ctl_io *io1, union ctl_io *io2, bool seq) 10816 { 10817 uint64_t lba1, lba2; 10818 uint64_t len1, len2; 10819 int retval; 10820 10821 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10822 return (CTL_ACTION_ERROR); 10823 10824 retval = ctl_extent_check_unmap(io1, lba2, len2); 10825 if (retval != CTL_ACTION_ERROR) 10826 return (retval); 10827 10828 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10829 return (CTL_ACTION_ERROR); 10830 10831 return (ctl_extent_check_lba(lba1, len1, lba2, len2, seq)); 10832 } 10833 10834 static ctl_action 10835 ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2) 10836 { 10837 uint64_t lba1, lba2; 10838 uint64_t len1, len2; 10839 10840 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10841 return (CTL_ACTION_ERROR); 10842 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10843 return (CTL_ACTION_ERROR); 10844 10845 if (lba1 + len1 == lba2) 10846 return (CTL_ACTION_BLOCK); 10847 return (CTL_ACTION_PASS); 10848 } 10849 10850 static ctl_action 10851 ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10852 union ctl_io *ooa_io) 10853 { 10854 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10855 ctl_serialize_action *serialize_row; 10856 10857 /* 10858 * The initiator attempted multiple untagged commands at the same 10859 * time. Can't do that. 10860 */ 10861 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10862 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10863 && ((pending_io->io_hdr.nexus.targ_port == 10864 ooa_io->io_hdr.nexus.targ_port) 10865 && (pending_io->io_hdr.nexus.initid.id == 10866 ooa_io->io_hdr.nexus.initid.id)) 10867 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10868 return (CTL_ACTION_OVERLAP); 10869 10870 /* 10871 * The initiator attempted to send multiple tagged commands with 10872 * the same ID. (It's fine if different initiators have the same 10873 * tag ID.) 10874 * 10875 * Even if all of those conditions are true, we don't kill the I/O 10876 * if the command ahead of us has been aborted. We won't end up 10877 * sending it to the FETD, and it's perfectly legal to resend a 10878 * command with the same tag number as long as the previous 10879 * instance of this tag number has been aborted somehow. 10880 */ 10881 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10882 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10883 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10884 && ((pending_io->io_hdr.nexus.targ_port == 10885 ooa_io->io_hdr.nexus.targ_port) 10886 && (pending_io->io_hdr.nexus.initid.id == 10887 ooa_io->io_hdr.nexus.initid.id)) 10888 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10889 return (CTL_ACTION_OVERLAP_TAG); 10890 10891 /* 10892 * If we get a head of queue tag, SAM-3 says that we should 10893 * immediately execute it. 10894 * 10895 * What happens if this command would normally block for some other 10896 * reason? e.g. a request sense with a head of queue tag 10897 * immediately after a write. Normally that would block, but this 10898 * will result in its getting executed immediately... 10899 * 10900 * We currently return "pass" instead of "skip", so we'll end up 10901 * going through the rest of the queue to check for overlapped tags. 10902 * 10903 * XXX KDM check for other types of blockage first?? 10904 */ 10905 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10906 return (CTL_ACTION_PASS); 10907 10908 /* 10909 * Ordered tags have to block until all items ahead of them 10910 * have completed. If we get called with an ordered tag, we always 10911 * block, if something else is ahead of us in the queue. 10912 */ 10913 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 10914 return (CTL_ACTION_BLOCK); 10915 10916 /* 10917 * Simple tags get blocked until all head of queue and ordered tags 10918 * ahead of them have completed. I'm lumping untagged commands in 10919 * with simple tags here. XXX KDM is that the right thing to do? 10920 */ 10921 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10922 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 10923 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10924 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 10925 return (CTL_ACTION_BLOCK); 10926 10927 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 10928 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 10929 10930 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 10931 10932 switch (serialize_row[pending_entry->seridx]) { 10933 case CTL_SER_BLOCK: 10934 return (CTL_ACTION_BLOCK); 10935 case CTL_SER_EXTENT: 10936 return (ctl_extent_check(ooa_io, pending_io, 10937 (lun->serseq == CTL_LUN_SERSEQ_ON))); 10938 case CTL_SER_EXTENTOPT: 10939 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 10940 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 10941 return (ctl_extent_check(ooa_io, pending_io, 10942 (lun->serseq == CTL_LUN_SERSEQ_ON))); 10943 return (CTL_ACTION_PASS); 10944 case CTL_SER_EXTENTSEQ: 10945 if (lun->serseq != CTL_LUN_SERSEQ_OFF) 10946 return (ctl_extent_check_seq(ooa_io, pending_io)); 10947 return (CTL_ACTION_PASS); 10948 case CTL_SER_PASS: 10949 return (CTL_ACTION_PASS); 10950 case CTL_SER_BLOCKOPT: 10951 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT].queue_flags 10952 & SCP_QUEUE_ALG_MASK) != SCP_QUEUE_ALG_UNRESTRICTED) 10953 return (CTL_ACTION_BLOCK); 10954 return (CTL_ACTION_PASS); 10955 case CTL_SER_SKIP: 10956 return (CTL_ACTION_SKIP); 10957 default: 10958 panic("invalid serialization value %d", 10959 serialize_row[pending_entry->seridx]); 10960 } 10961 10962 return (CTL_ACTION_ERROR); 10963 } 10964 10965 /* 10966 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 10967 * Assumptions: 10968 * - pending_io is generally either incoming, or on the blocked queue 10969 * - starting I/O is the I/O we want to start the check with. 10970 */ 10971 static ctl_action 10972 ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 10973 union ctl_io *starting_io) 10974 { 10975 union ctl_io *ooa_io; 10976 ctl_action action; 10977 10978 mtx_assert(&lun->lun_lock, MA_OWNED); 10979 10980 /* 10981 * Run back along the OOA queue, starting with the current 10982 * blocked I/O and going through every I/O before it on the 10983 * queue. If starting_io is NULL, we'll just end up returning 10984 * CTL_ACTION_PASS. 10985 */ 10986 for (ooa_io = starting_io; ooa_io != NULL; 10987 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 10988 ooa_links)){ 10989 10990 /* 10991 * This routine just checks to see whether 10992 * cur_blocked is blocked by ooa_io, which is ahead 10993 * of it in the queue. It doesn't queue/dequeue 10994 * cur_blocked. 10995 */ 10996 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 10997 switch (action) { 10998 case CTL_ACTION_BLOCK: 10999 case CTL_ACTION_OVERLAP: 11000 case CTL_ACTION_OVERLAP_TAG: 11001 case CTL_ACTION_SKIP: 11002 case CTL_ACTION_ERROR: 11003 return (action); 11004 break; /* NOTREACHED */ 11005 case CTL_ACTION_PASS: 11006 break; 11007 default: 11008 panic("invalid action %d", action); 11009 break; /* NOTREACHED */ 11010 } 11011 } 11012 11013 return (CTL_ACTION_PASS); 11014 } 11015 11016 /* 11017 * Assumptions: 11018 * - An I/O has just completed, and has been removed from the per-LUN OOA 11019 * queue, so some items on the blocked queue may now be unblocked. 11020 */ 11021 static int 11022 ctl_check_blocked(struct ctl_lun *lun) 11023 { 11024 union ctl_io *cur_blocked, *next_blocked; 11025 11026 mtx_assert(&lun->lun_lock, MA_OWNED); 11027 11028 /* 11029 * Run forward from the head of the blocked queue, checking each 11030 * entry against the I/Os prior to it on the OOA queue to see if 11031 * there is still any blockage. 11032 * 11033 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 11034 * with our removing a variable on it while it is traversing the 11035 * list. 11036 */ 11037 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 11038 cur_blocked != NULL; cur_blocked = next_blocked) { 11039 union ctl_io *prev_ooa; 11040 ctl_action action; 11041 11042 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 11043 blocked_links); 11044 11045 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11046 ctl_ooaq, ooa_links); 11047 11048 /* 11049 * If cur_blocked happens to be the first item in the OOA 11050 * queue now, prev_ooa will be NULL, and the action 11051 * returned will just be CTL_ACTION_PASS. 11052 */ 11053 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11054 11055 switch (action) { 11056 case CTL_ACTION_BLOCK: 11057 /* Nothing to do here, still blocked */ 11058 break; 11059 case CTL_ACTION_OVERLAP: 11060 case CTL_ACTION_OVERLAP_TAG: 11061 /* 11062 * This shouldn't happen! In theory we've already 11063 * checked this command for overlap... 11064 */ 11065 break; 11066 case CTL_ACTION_PASS: 11067 case CTL_ACTION_SKIP: { 11068 struct ctl_softc *softc; 11069 const struct ctl_cmd_entry *entry; 11070 int isc_retval; 11071 11072 /* 11073 * The skip case shouldn't happen, this transaction 11074 * should have never made it onto the blocked queue. 11075 */ 11076 /* 11077 * This I/O is no longer blocked, we can remove it 11078 * from the blocked queue. Since this is a TAILQ 11079 * (doubly linked list), we can do O(1) removals 11080 * from any place on the list. 11081 */ 11082 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11083 blocked_links); 11084 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11085 11086 if (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC){ 11087 /* 11088 * Need to send IO back to original side to 11089 * run 11090 */ 11091 union ctl_ha_msg msg_info; 11092 11093 msg_info.hdr.original_sc = 11094 cur_blocked->io_hdr.original_sc; 11095 msg_info.hdr.serializing_sc = cur_blocked; 11096 msg_info.hdr.msg_type = CTL_MSG_R2R; 11097 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11098 &msg_info, sizeof(msg_info), 0)) > 11099 CTL_HA_STATUS_SUCCESS) { 11100 printf("CTL:Check Blocked error from " 11101 "ctl_ha_msg_send %d\n", 11102 isc_retval); 11103 } 11104 break; 11105 } 11106 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 11107 softc = control_softc; 11108 11109 /* 11110 * Check this I/O for LUN state changes that may 11111 * have happened while this command was blocked. 11112 * The LUN state may have been changed by a command 11113 * ahead of us in the queue, so we need to re-check 11114 * for any states that can be caused by SCSI 11115 * commands. 11116 */ 11117 if (ctl_scsiio_lun_check(softc, lun, entry, 11118 &cur_blocked->scsiio) == 0) { 11119 cur_blocked->io_hdr.flags |= 11120 CTL_FLAG_IS_WAS_ON_RTR; 11121 ctl_enqueue_rtr(cur_blocked); 11122 } else 11123 ctl_done(cur_blocked); 11124 break; 11125 } 11126 default: 11127 /* 11128 * This probably shouldn't happen -- we shouldn't 11129 * get CTL_ACTION_ERROR, or anything else. 11130 */ 11131 break; 11132 } 11133 } 11134 11135 return (CTL_RETVAL_COMPLETE); 11136 } 11137 11138 /* 11139 * This routine (with one exception) checks LUN flags that can be set by 11140 * commands ahead of us in the OOA queue. These flags have to be checked 11141 * when a command initially comes in, and when we pull a command off the 11142 * blocked queue and are preparing to execute it. The reason we have to 11143 * check these flags for commands on the blocked queue is that the LUN 11144 * state may have been changed by a command ahead of us while we're on the 11145 * blocked queue. 11146 * 11147 * Ordering is somewhat important with these checks, so please pay 11148 * careful attention to the placement of any new checks. 11149 */ 11150 static int 11151 ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 11152 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11153 { 11154 int retval; 11155 uint32_t residx; 11156 11157 retval = 0; 11158 11159 mtx_assert(&lun->lun_lock, MA_OWNED); 11160 11161 /* 11162 * If this shelf is a secondary shelf controller, we have to reject 11163 * any media access commands. 11164 */ 11165 if ((ctl_softc->flags & CTL_FLAG_ACTIVE_SHELF) == 0 && 11166 (entry->flags & CTL_CMD_FLAG_OK_ON_SECONDARY) == 0) { 11167 ctl_set_lun_standby(ctsio); 11168 retval = 1; 11169 goto bailout; 11170 } 11171 11172 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11173 if (lun->flags & CTL_LUN_READONLY) { 11174 ctl_set_sense(ctsio, /*current_error*/ 1, 11175 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11176 /*asc*/ 0x27, /*ascq*/ 0x01, SSD_ELEM_NONE); 11177 retval = 1; 11178 goto bailout; 11179 } 11180 if ((lun->mode_pages.control_page[CTL_PAGE_CURRENT] 11181 .eca_and_aen & SCP_SWP) != 0) { 11182 ctl_set_sense(ctsio, /*current_error*/ 1, 11183 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11184 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11185 retval = 1; 11186 goto bailout; 11187 } 11188 } 11189 11190 /* 11191 * Check for a reservation conflict. If this command isn't allowed 11192 * even on reserved LUNs, and if this initiator isn't the one who 11193 * reserved us, reject the command with a reservation conflict. 11194 */ 11195 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 11196 if ((lun->flags & CTL_LUN_RESERVED) 11197 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11198 if (lun->res_idx != residx) { 11199 ctl_set_reservation_conflict(ctsio); 11200 retval = 1; 11201 goto bailout; 11202 } 11203 } 11204 11205 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0 || 11206 (entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV)) { 11207 /* No reservation or command is allowed. */; 11208 } else if ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_WRESV) && 11209 (lun->res_type == SPR_TYPE_WR_EX || 11210 lun->res_type == SPR_TYPE_WR_EX_RO || 11211 lun->res_type == SPR_TYPE_WR_EX_AR)) { 11212 /* The command is allowed for Write Exclusive resv. */; 11213 } else { 11214 /* 11215 * if we aren't registered or it's a res holder type 11216 * reservation and this isn't the res holder then set a 11217 * conflict. 11218 */ 11219 if (ctl_get_prkey(lun, residx) == 0 11220 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 11221 ctl_set_reservation_conflict(ctsio); 11222 retval = 1; 11223 goto bailout; 11224 } 11225 11226 } 11227 11228 if ((lun->flags & CTL_LUN_OFFLINE) 11229 && ((entry->flags & CTL_CMD_FLAG_OK_ON_OFFLINE) == 0)) { 11230 ctl_set_lun_not_ready(ctsio); 11231 retval = 1; 11232 goto bailout; 11233 } 11234 11235 /* 11236 * If the LUN is stopped, see if this particular command is allowed 11237 * for a stopped lun. Otherwise, reject it with 0x04,0x02. 11238 */ 11239 if ((lun->flags & CTL_LUN_STOPPED) 11240 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 11241 /* "Logical unit not ready, initializing cmd. required" */ 11242 ctl_set_lun_stopped(ctsio); 11243 retval = 1; 11244 goto bailout; 11245 } 11246 11247 if ((lun->flags & CTL_LUN_INOPERABLE) 11248 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 11249 /* "Medium format corrupted" */ 11250 ctl_set_medium_format_corrupted(ctsio); 11251 retval = 1; 11252 goto bailout; 11253 } 11254 11255 bailout: 11256 return (retval); 11257 11258 } 11259 11260 static void 11261 ctl_failover_io(union ctl_io *io, int have_lock) 11262 { 11263 ctl_set_busy(&io->scsiio); 11264 ctl_done(io); 11265 } 11266 11267 static void 11268 ctl_failover(void) 11269 { 11270 struct ctl_lun *lun; 11271 struct ctl_softc *ctl_softc; 11272 union ctl_io *next_io, *pending_io; 11273 union ctl_io *io; 11274 int lun_idx; 11275 11276 ctl_softc = control_softc; 11277 11278 mtx_lock(&ctl_softc->ctl_lock); 11279 /* 11280 * Remove any cmds from the other SC from the rtr queue. These 11281 * will obviously only be for LUNs for which we're the primary. 11282 * We can't send status or get/send data for these commands. 11283 * Since they haven't been executed yet, we can just remove them. 11284 * We'll either abort them or delete them below, depending on 11285 * which HA mode we're in. 11286 */ 11287 #ifdef notyet 11288 mtx_lock(&ctl_softc->queue_lock); 11289 for (io = (union ctl_io *)STAILQ_FIRST(&ctl_softc->rtr_queue); 11290 io != NULL; io = next_io) { 11291 next_io = (union ctl_io *)STAILQ_NEXT(&io->io_hdr, links); 11292 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11293 STAILQ_REMOVE(&ctl_softc->rtr_queue, &io->io_hdr, 11294 ctl_io_hdr, links); 11295 } 11296 mtx_unlock(&ctl_softc->queue_lock); 11297 #endif 11298 11299 for (lun_idx=0; lun_idx < ctl_softc->num_luns; lun_idx++) { 11300 lun = ctl_softc->ctl_luns[lun_idx]; 11301 if (lun==NULL) 11302 continue; 11303 11304 /* 11305 * Processor LUNs are primary on both sides. 11306 * XXX will this always be true? 11307 */ 11308 if (lun->be_lun->lun_type == T_PROCESSOR) 11309 continue; 11310 11311 if ((lun->flags & CTL_LUN_PRIMARY_SC) 11312 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11313 printf("FAILOVER: primary lun %d\n", lun_idx); 11314 /* 11315 * Remove all commands from the other SC. First from the 11316 * blocked queue then from the ooa queue. Once we have 11317 * removed them. Call ctl_check_blocked to see if there 11318 * is anything that can run. 11319 */ 11320 for (io = (union ctl_io *)TAILQ_FIRST( 11321 &lun->blocked_queue); io != NULL; io = next_io) { 11322 11323 next_io = (union ctl_io *)TAILQ_NEXT( 11324 &io->io_hdr, blocked_links); 11325 11326 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11327 TAILQ_REMOVE(&lun->blocked_queue, 11328 &io->io_hdr,blocked_links); 11329 io->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11330 TAILQ_REMOVE(&lun->ooa_queue, 11331 &io->io_hdr, ooa_links); 11332 11333 ctl_free_io(io); 11334 } 11335 } 11336 11337 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11338 io != NULL; io = next_io) { 11339 11340 next_io = (union ctl_io *)TAILQ_NEXT( 11341 &io->io_hdr, ooa_links); 11342 11343 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11344 11345 TAILQ_REMOVE(&lun->ooa_queue, 11346 &io->io_hdr, 11347 ooa_links); 11348 11349 ctl_free_io(io); 11350 } 11351 } 11352 ctl_check_blocked(lun); 11353 } else if ((lun->flags & CTL_LUN_PRIMARY_SC) 11354 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11355 11356 printf("FAILOVER: primary lun %d\n", lun_idx); 11357 /* 11358 * Abort all commands from the other SC. We can't 11359 * send status back for them now. These should get 11360 * cleaned up when they are completed or come out 11361 * for a datamove operation. 11362 */ 11363 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11364 io != NULL; io = next_io) { 11365 next_io = (union ctl_io *)TAILQ_NEXT( 11366 &io->io_hdr, ooa_links); 11367 11368 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11369 io->io_hdr.flags |= CTL_FLAG_ABORT; 11370 } 11371 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11372 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11373 11374 printf("FAILOVER: secondary lun %d\n", lun_idx); 11375 11376 lun->flags |= CTL_LUN_PRIMARY_SC; 11377 11378 /* 11379 * We send all I/O that was sent to this controller 11380 * and redirected to the other side back with 11381 * busy status, and have the initiator retry it. 11382 * Figuring out how much data has been transferred, 11383 * etc. and picking up where we left off would be 11384 * very tricky. 11385 * 11386 * XXX KDM need to remove I/O from the blocked 11387 * queue as well! 11388 */ 11389 for (pending_io = (union ctl_io *)TAILQ_FIRST( 11390 &lun->ooa_queue); pending_io != NULL; 11391 pending_io = next_io) { 11392 11393 next_io = (union ctl_io *)TAILQ_NEXT( 11394 &pending_io->io_hdr, ooa_links); 11395 11396 pending_io->io_hdr.flags &= 11397 ~CTL_FLAG_SENT_2OTHER_SC; 11398 11399 if (pending_io->io_hdr.flags & 11400 CTL_FLAG_IO_ACTIVE) { 11401 pending_io->io_hdr.flags |= 11402 CTL_FLAG_FAILOVER; 11403 } else { 11404 ctl_set_busy(&pending_io->scsiio); 11405 ctl_done(pending_io); 11406 } 11407 } 11408 11409 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 11410 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11411 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11412 printf("FAILOVER: secondary lun %d\n", lun_idx); 11413 /* 11414 * if the first io on the OOA is not on the RtR queue 11415 * add it. 11416 */ 11417 lun->flags |= CTL_LUN_PRIMARY_SC; 11418 11419 pending_io = (union ctl_io *)TAILQ_FIRST( 11420 &lun->ooa_queue); 11421 if (pending_io==NULL) { 11422 printf("Nothing on OOA queue\n"); 11423 continue; 11424 } 11425 11426 pending_io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11427 if ((pending_io->io_hdr.flags & 11428 CTL_FLAG_IS_WAS_ON_RTR) == 0) { 11429 pending_io->io_hdr.flags |= 11430 CTL_FLAG_IS_WAS_ON_RTR; 11431 ctl_enqueue_rtr(pending_io); 11432 } 11433 #if 0 11434 else 11435 { 11436 printf("Tag 0x%04x is running\n", 11437 pending_io->scsiio.tag_num); 11438 } 11439 #endif 11440 11441 next_io = (union ctl_io *)TAILQ_NEXT( 11442 &pending_io->io_hdr, ooa_links); 11443 for (pending_io=next_io; pending_io != NULL; 11444 pending_io = next_io) { 11445 pending_io->io_hdr.flags &= 11446 ~CTL_FLAG_SENT_2OTHER_SC; 11447 next_io = (union ctl_io *)TAILQ_NEXT( 11448 &pending_io->io_hdr, ooa_links); 11449 if (pending_io->io_hdr.flags & 11450 CTL_FLAG_IS_WAS_ON_RTR) { 11451 #if 0 11452 printf("Tag 0x%04x is running\n", 11453 pending_io->scsiio.tag_num); 11454 #endif 11455 continue; 11456 } 11457 11458 switch (ctl_check_ooa(lun, pending_io, 11459 (union ctl_io *)TAILQ_PREV( 11460 &pending_io->io_hdr, ctl_ooaq, 11461 ooa_links))) { 11462 11463 case CTL_ACTION_BLOCK: 11464 TAILQ_INSERT_TAIL(&lun->blocked_queue, 11465 &pending_io->io_hdr, 11466 blocked_links); 11467 pending_io->io_hdr.flags |= 11468 CTL_FLAG_BLOCKED; 11469 break; 11470 case CTL_ACTION_PASS: 11471 case CTL_ACTION_SKIP: 11472 pending_io->io_hdr.flags |= 11473 CTL_FLAG_IS_WAS_ON_RTR; 11474 ctl_enqueue_rtr(pending_io); 11475 break; 11476 case CTL_ACTION_OVERLAP: 11477 ctl_set_overlapped_cmd( 11478 (struct ctl_scsiio *)pending_io); 11479 ctl_done(pending_io); 11480 break; 11481 case CTL_ACTION_OVERLAP_TAG: 11482 ctl_set_overlapped_tag( 11483 (struct ctl_scsiio *)pending_io, 11484 pending_io->scsiio.tag_num & 0xff); 11485 ctl_done(pending_io); 11486 break; 11487 case CTL_ACTION_ERROR: 11488 default: 11489 ctl_set_internal_failure( 11490 (struct ctl_scsiio *)pending_io, 11491 0, // sks_valid 11492 0); //retry count 11493 ctl_done(pending_io); 11494 break; 11495 } 11496 } 11497 11498 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 11499 } else { 11500 panic("Unhandled HA mode failover, LUN flags = %#x, " 11501 "ha_mode = #%x", lun->flags, ctl_softc->ha_mode); 11502 } 11503 } 11504 ctl_pause_rtr = 0; 11505 mtx_unlock(&ctl_softc->ctl_lock); 11506 } 11507 11508 static int 11509 ctl_scsiio_precheck(struct ctl_softc *ctl_softc, struct ctl_scsiio *ctsio) 11510 { 11511 struct ctl_lun *lun; 11512 const struct ctl_cmd_entry *entry; 11513 uint32_t initidx, targ_lun; 11514 int retval; 11515 11516 retval = 0; 11517 11518 lun = NULL; 11519 11520 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11521 if ((targ_lun < CTL_MAX_LUNS) 11522 && ((lun = ctl_softc->ctl_luns[targ_lun]) != NULL)) { 11523 /* 11524 * If the LUN is invalid, pretend that it doesn't exist. 11525 * It will go away as soon as all pending I/O has been 11526 * completed. 11527 */ 11528 mtx_lock(&lun->lun_lock); 11529 if (lun->flags & CTL_LUN_DISABLED) { 11530 mtx_unlock(&lun->lun_lock); 11531 lun = NULL; 11532 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11533 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11534 } else { 11535 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11536 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11537 lun->be_lun; 11538 if (lun->be_lun->lun_type == T_PROCESSOR) { 11539 ctsio->io_hdr.flags |= CTL_FLAG_CONTROL_DEV; 11540 } 11541 11542 /* 11543 * Every I/O goes into the OOA queue for a 11544 * particular LUN, and stays there until completion. 11545 */ 11546 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11547 ooa_links); 11548 } 11549 } else { 11550 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11551 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11552 } 11553 11554 /* Get command entry and return error if it is unsuppotyed. */ 11555 entry = ctl_validate_command(ctsio); 11556 if (entry == NULL) { 11557 if (lun) 11558 mtx_unlock(&lun->lun_lock); 11559 return (retval); 11560 } 11561 11562 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11563 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11564 11565 /* 11566 * Check to see whether we can send this command to LUNs that don't 11567 * exist. This should pretty much only be the case for inquiry 11568 * and request sense. Further checks, below, really require having 11569 * a LUN, so we can't really check the command anymore. Just put 11570 * it on the rtr queue. 11571 */ 11572 if (lun == NULL) { 11573 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) { 11574 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11575 ctl_enqueue_rtr((union ctl_io *)ctsio); 11576 return (retval); 11577 } 11578 11579 ctl_set_unsupported_lun(ctsio); 11580 ctl_done((union ctl_io *)ctsio); 11581 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11582 return (retval); 11583 } else { 11584 /* 11585 * Make sure we support this particular command on this LUN. 11586 * e.g., we don't support writes to the control LUN. 11587 */ 11588 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11589 mtx_unlock(&lun->lun_lock); 11590 ctl_set_invalid_opcode(ctsio); 11591 ctl_done((union ctl_io *)ctsio); 11592 return (retval); 11593 } 11594 } 11595 11596 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11597 11598 #ifdef CTL_WITH_CA 11599 /* 11600 * If we've got a request sense, it'll clear the contingent 11601 * allegiance condition. Otherwise, if we have a CA condition for 11602 * this initiator, clear it, because it sent down a command other 11603 * than request sense. 11604 */ 11605 if ((ctsio->cdb[0] != REQUEST_SENSE) 11606 && (ctl_is_set(lun->have_ca, initidx))) 11607 ctl_clear_mask(lun->have_ca, initidx); 11608 #endif 11609 11610 /* 11611 * If the command has this flag set, it handles its own unit 11612 * attention reporting, we shouldn't do anything. Otherwise we 11613 * check for any pending unit attentions, and send them back to the 11614 * initiator. We only do this when a command initially comes in, 11615 * not when we pull it off the blocked queue. 11616 * 11617 * According to SAM-3, section 5.3.2, the order that things get 11618 * presented back to the host is basically unit attentions caused 11619 * by some sort of reset event, busy status, reservation conflicts 11620 * or task set full, and finally any other status. 11621 * 11622 * One issue here is that some of the unit attentions we report 11623 * don't fall into the "reset" category (e.g. "reported luns data 11624 * has changed"). So reporting it here, before the reservation 11625 * check, may be technically wrong. I guess the only thing to do 11626 * would be to check for and report the reset events here, and then 11627 * check for the other unit attention types after we check for a 11628 * reservation conflict. 11629 * 11630 * XXX KDM need to fix this 11631 */ 11632 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11633 ctl_ua_type ua_type; 11634 scsi_sense_data_type sense_format; 11635 11636 if (lun->flags & CTL_LUN_SENSE_DESC) 11637 sense_format = SSD_TYPE_DESC; 11638 else 11639 sense_format = SSD_TYPE_FIXED; 11640 11641 ua_type = ctl_build_ua(lun, initidx, &ctsio->sense_data, 11642 sense_format); 11643 if (ua_type != CTL_UA_NONE) { 11644 mtx_unlock(&lun->lun_lock); 11645 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11646 ctsio->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 11647 ctsio->sense_len = SSD_FULL_SIZE; 11648 ctl_done((union ctl_io *)ctsio); 11649 return (retval); 11650 } 11651 } 11652 11653 11654 if (ctl_scsiio_lun_check(ctl_softc, lun, entry, ctsio) != 0) { 11655 mtx_unlock(&lun->lun_lock); 11656 ctl_done((union ctl_io *)ctsio); 11657 return (retval); 11658 } 11659 11660 /* 11661 * XXX CHD this is where we want to send IO to other side if 11662 * this LUN is secondary on this SC. We will need to make a copy 11663 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11664 * the copy we send as FROM_OTHER. 11665 * We also need to stuff the address of the original IO so we can 11666 * find it easily. Something similar will need be done on the other 11667 * side so when we are done we can find the copy. 11668 */ 11669 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11670 union ctl_ha_msg msg_info; 11671 int isc_retval; 11672 11673 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11674 11675 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11676 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11677 #if 0 11678 printf("1. ctsio %p\n", ctsio); 11679 #endif 11680 msg_info.hdr.serializing_sc = NULL; 11681 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11682 msg_info.scsi.tag_num = ctsio->tag_num; 11683 msg_info.scsi.tag_type = ctsio->tag_type; 11684 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11685 11686 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11687 11688 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11689 (void *)&msg_info, sizeof(msg_info), 0)) > 11690 CTL_HA_STATUS_SUCCESS) { 11691 printf("CTL:precheck, ctl_ha_msg_send returned %d\n", 11692 isc_retval); 11693 printf("CTL:opcode is %x\n", ctsio->cdb[0]); 11694 } else { 11695 #if 0 11696 printf("CTL:Precheck sent msg, opcode is %x\n",opcode); 11697 #endif 11698 } 11699 11700 /* 11701 * XXX KDM this I/O is off the incoming queue, but hasn't 11702 * been inserted on any other queue. We may need to come 11703 * up with a holding queue while we wait for serialization 11704 * so that we have an idea of what we're waiting for from 11705 * the other side. 11706 */ 11707 mtx_unlock(&lun->lun_lock); 11708 return (retval); 11709 } 11710 11711 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11712 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11713 ctl_ooaq, ooa_links))) { 11714 case CTL_ACTION_BLOCK: 11715 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11716 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11717 blocked_links); 11718 mtx_unlock(&lun->lun_lock); 11719 return (retval); 11720 case CTL_ACTION_PASS: 11721 case CTL_ACTION_SKIP: 11722 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11723 mtx_unlock(&lun->lun_lock); 11724 ctl_enqueue_rtr((union ctl_io *)ctsio); 11725 break; 11726 case CTL_ACTION_OVERLAP: 11727 mtx_unlock(&lun->lun_lock); 11728 ctl_set_overlapped_cmd(ctsio); 11729 ctl_done((union ctl_io *)ctsio); 11730 break; 11731 case CTL_ACTION_OVERLAP_TAG: 11732 mtx_unlock(&lun->lun_lock); 11733 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11734 ctl_done((union ctl_io *)ctsio); 11735 break; 11736 case CTL_ACTION_ERROR: 11737 default: 11738 mtx_unlock(&lun->lun_lock); 11739 ctl_set_internal_failure(ctsio, 11740 /*sks_valid*/ 0, 11741 /*retry_count*/ 0); 11742 ctl_done((union ctl_io *)ctsio); 11743 break; 11744 } 11745 return (retval); 11746 } 11747 11748 const struct ctl_cmd_entry * 11749 ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11750 { 11751 const struct ctl_cmd_entry *entry; 11752 int service_action; 11753 11754 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11755 if (sa) 11756 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11757 if (entry->flags & CTL_CMD_FLAG_SA5) { 11758 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11759 entry = &((const struct ctl_cmd_entry *) 11760 entry->execute)[service_action]; 11761 } 11762 return (entry); 11763 } 11764 11765 const struct ctl_cmd_entry * 11766 ctl_validate_command(struct ctl_scsiio *ctsio) 11767 { 11768 const struct ctl_cmd_entry *entry; 11769 int i, sa; 11770 uint8_t diff; 11771 11772 entry = ctl_get_cmd_entry(ctsio, &sa); 11773 if (entry->execute == NULL) { 11774 if (sa) 11775 ctl_set_invalid_field(ctsio, 11776 /*sks_valid*/ 1, 11777 /*command*/ 1, 11778 /*field*/ 1, 11779 /*bit_valid*/ 1, 11780 /*bit*/ 4); 11781 else 11782 ctl_set_invalid_opcode(ctsio); 11783 ctl_done((union ctl_io *)ctsio); 11784 return (NULL); 11785 } 11786 KASSERT(entry->length > 0, 11787 ("Not defined length for command 0x%02x/0x%02x", 11788 ctsio->cdb[0], ctsio->cdb[1])); 11789 for (i = 1; i < entry->length; i++) { 11790 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11791 if (diff == 0) 11792 continue; 11793 ctl_set_invalid_field(ctsio, 11794 /*sks_valid*/ 1, 11795 /*command*/ 1, 11796 /*field*/ i, 11797 /*bit_valid*/ 1, 11798 /*bit*/ fls(diff) - 1); 11799 ctl_done((union ctl_io *)ctsio); 11800 return (NULL); 11801 } 11802 return (entry); 11803 } 11804 11805 static int 11806 ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11807 { 11808 11809 switch (lun_type) { 11810 case T_PROCESSOR: 11811 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) && 11812 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11813 return (0); 11814 break; 11815 case T_DIRECT: 11816 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) && 11817 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11818 return (0); 11819 break; 11820 default: 11821 return (0); 11822 } 11823 return (1); 11824 } 11825 11826 static int 11827 ctl_scsiio(struct ctl_scsiio *ctsio) 11828 { 11829 int retval; 11830 const struct ctl_cmd_entry *entry; 11831 11832 retval = CTL_RETVAL_COMPLETE; 11833 11834 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11835 11836 entry = ctl_get_cmd_entry(ctsio, NULL); 11837 11838 /* 11839 * If this I/O has been aborted, just send it straight to 11840 * ctl_done() without executing it. 11841 */ 11842 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11843 ctl_done((union ctl_io *)ctsio); 11844 goto bailout; 11845 } 11846 11847 /* 11848 * All the checks should have been handled by ctl_scsiio_precheck(). 11849 * We should be clear now to just execute the I/O. 11850 */ 11851 retval = entry->execute(ctsio); 11852 11853 bailout: 11854 return (retval); 11855 } 11856 11857 /* 11858 * Since we only implement one target right now, a bus reset simply resets 11859 * our single target. 11860 */ 11861 static int 11862 ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io) 11863 { 11864 return(ctl_target_reset(ctl_softc, io, CTL_UA_BUS_RESET)); 11865 } 11866 11867 static int 11868 ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 11869 ctl_ua_type ua_type) 11870 { 11871 struct ctl_lun *lun; 11872 int retval; 11873 11874 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11875 union ctl_ha_msg msg_info; 11876 11877 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11878 msg_info.hdr.nexus = io->io_hdr.nexus; 11879 if (ua_type==CTL_UA_TARG_RESET) 11880 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11881 else 11882 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11883 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11884 msg_info.hdr.original_sc = NULL; 11885 msg_info.hdr.serializing_sc = NULL; 11886 if (CTL_HA_STATUS_SUCCESS != ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11887 (void *)&msg_info, sizeof(msg_info), 0)) { 11888 } 11889 } 11890 retval = 0; 11891 11892 mtx_lock(&ctl_softc->ctl_lock); 11893 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) 11894 retval += ctl_lun_reset(lun, io, ua_type); 11895 mtx_unlock(&ctl_softc->ctl_lock); 11896 11897 return (retval); 11898 } 11899 11900 /* 11901 * The LUN should always be set. The I/O is optional, and is used to 11902 * distinguish between I/Os sent by this initiator, and by other 11903 * initiators. We set unit attention for initiators other than this one. 11904 * SAM-3 is vague on this point. It does say that a unit attention should 11905 * be established for other initiators when a LUN is reset (see section 11906 * 5.7.3), but it doesn't specifically say that the unit attention should 11907 * be established for this particular initiator when a LUN is reset. Here 11908 * is the relevant text, from SAM-3 rev 8: 11909 * 11910 * 5.7.2 When a SCSI initiator port aborts its own tasks 11911 * 11912 * When a SCSI initiator port causes its own task(s) to be aborted, no 11913 * notification that the task(s) have been aborted shall be returned to 11914 * the SCSI initiator port other than the completion response for the 11915 * command or task management function action that caused the task(s) to 11916 * be aborted and notification(s) associated with related effects of the 11917 * action (e.g., a reset unit attention condition). 11918 * 11919 * XXX KDM for now, we're setting unit attention for all initiators. 11920 */ 11921 static int 11922 ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11923 { 11924 union ctl_io *xio; 11925 #if 0 11926 uint32_t initidx; 11927 #endif 11928 #ifdef CTL_WITH_CA 11929 int i; 11930 #endif 11931 11932 mtx_lock(&lun->lun_lock); 11933 /* 11934 * Run through the OOA queue and abort each I/O. 11935 */ 11936 #if 0 11937 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 11938 #endif 11939 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11940 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11941 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11942 } 11943 11944 /* 11945 * This version sets unit attention for every 11946 */ 11947 #if 0 11948 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11949 ctl_est_ua_all(lun, initidx, ua_type); 11950 #else 11951 ctl_est_ua_all(lun, -1, ua_type); 11952 #endif 11953 11954 /* 11955 * A reset (any kind, really) clears reservations established with 11956 * RESERVE/RELEASE. It does not clear reservations established 11957 * with PERSISTENT RESERVE OUT, but we don't support that at the 11958 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11959 * reservations made with the RESERVE/RELEASE commands, because 11960 * those commands are obsolete in SPC-3. 11961 */ 11962 lun->flags &= ~CTL_LUN_RESERVED; 11963 11964 #ifdef CTL_WITH_CA 11965 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11966 ctl_clear_mask(lun->have_ca, i); 11967 #endif 11968 mtx_unlock(&lun->lun_lock); 11969 11970 return (0); 11971 } 11972 11973 static void 11974 ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11975 int other_sc) 11976 { 11977 union ctl_io *xio; 11978 11979 mtx_assert(&lun->lun_lock, MA_OWNED); 11980 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 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11989 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11990 11991 if ((targ_port == UINT32_MAX || 11992 targ_port == xio->io_hdr.nexus.targ_port) && 11993 (init_id == UINT32_MAX || 11994 init_id == xio->io_hdr.nexus.initid.id)) { 11995 if (targ_port != xio->io_hdr.nexus.targ_port || 11996 init_id != xio->io_hdr.nexus.initid.id) 11997 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 11998 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11999 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12000 union ctl_ha_msg msg_info; 12001 12002 msg_info.hdr.nexus = xio->io_hdr.nexus; 12003 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12004 msg_info.task.tag_num = xio->scsiio.tag_num; 12005 msg_info.task.tag_type = xio->scsiio.tag_type; 12006 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12007 msg_info.hdr.original_sc = NULL; 12008 msg_info.hdr.serializing_sc = NULL; 12009 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12010 (void *)&msg_info, sizeof(msg_info), 0); 12011 } 12012 } 12013 } 12014 } 12015 12016 static int 12017 ctl_abort_task_set(union ctl_io *io) 12018 { 12019 struct ctl_softc *softc = control_softc; 12020 struct ctl_lun *lun; 12021 uint32_t targ_lun; 12022 12023 /* 12024 * Look up the LUN. 12025 */ 12026 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12027 mtx_lock(&softc->ctl_lock); 12028 if ((targ_lun < CTL_MAX_LUNS) && (softc->ctl_luns[targ_lun] != NULL)) 12029 lun = softc->ctl_luns[targ_lun]; 12030 else { 12031 mtx_unlock(&softc->ctl_lock); 12032 return (1); 12033 } 12034 12035 mtx_lock(&lun->lun_lock); 12036 mtx_unlock(&softc->ctl_lock); 12037 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 12038 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12039 io->io_hdr.nexus.initid.id, 12040 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12041 } else { /* CTL_TASK_CLEAR_TASK_SET */ 12042 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 12043 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12044 } 12045 mtx_unlock(&lun->lun_lock); 12046 return (0); 12047 } 12048 12049 static int 12050 ctl_i_t_nexus_reset(union ctl_io *io) 12051 { 12052 struct ctl_softc *softc = control_softc; 12053 struct ctl_lun *lun; 12054 uint32_t initidx, residx; 12055 12056 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12057 residx = ctl_get_resindex(&io->io_hdr.nexus); 12058 mtx_lock(&softc->ctl_lock); 12059 STAILQ_FOREACH(lun, &softc->lun_list, links) { 12060 mtx_lock(&lun->lun_lock); 12061 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12062 io->io_hdr.nexus.initid.id, 12063 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12064 #ifdef CTL_WITH_CA 12065 ctl_clear_mask(lun->have_ca, initidx); 12066 #endif 12067 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 12068 lun->flags &= ~CTL_LUN_RESERVED; 12069 ctl_est_ua(lun, initidx, CTL_UA_I_T_NEXUS_LOSS); 12070 mtx_unlock(&lun->lun_lock); 12071 } 12072 mtx_unlock(&softc->ctl_lock); 12073 return (0); 12074 } 12075 12076 static int 12077 ctl_abort_task(union ctl_io *io) 12078 { 12079 union ctl_io *xio; 12080 struct ctl_lun *lun; 12081 struct ctl_softc *ctl_softc; 12082 #if 0 12083 struct sbuf sb; 12084 char printbuf[128]; 12085 #endif 12086 int found; 12087 uint32_t targ_lun; 12088 12089 ctl_softc = control_softc; 12090 found = 0; 12091 12092 /* 12093 * Look up the LUN. 12094 */ 12095 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12096 mtx_lock(&ctl_softc->ctl_lock); 12097 if ((targ_lun < CTL_MAX_LUNS) 12098 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12099 lun = ctl_softc->ctl_luns[targ_lun]; 12100 else { 12101 mtx_unlock(&ctl_softc->ctl_lock); 12102 return (1); 12103 } 12104 12105 #if 0 12106 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12107 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12108 #endif 12109 12110 mtx_lock(&lun->lun_lock); 12111 mtx_unlock(&ctl_softc->ctl_lock); 12112 /* 12113 * Run through the OOA queue and attempt to find the given I/O. 12114 * The target port, initiator ID, tag type and tag number have to 12115 * match the values that we got from the initiator. If we have an 12116 * untagged command to abort, simply abort the first untagged command 12117 * we come to. We only allow one untagged command at a time of course. 12118 */ 12119 #if 0 12120 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12121 #endif 12122 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12123 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12124 #if 0 12125 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12126 12127 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12128 lun->lun, xio->scsiio.tag_num, 12129 xio->scsiio.tag_type, 12130 (xio->io_hdr.blocked_links.tqe_prev 12131 == NULL) ? "" : " BLOCKED", 12132 (xio->io_hdr.flags & 12133 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12134 (xio->io_hdr.flags & 12135 CTL_FLAG_ABORT) ? " ABORT" : "", 12136 (xio->io_hdr.flags & 12137 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12138 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12139 sbuf_finish(&sb); 12140 printf("%s\n", sbuf_data(&sb)); 12141 #endif 12142 12143 if ((xio->io_hdr.nexus.targ_port == io->io_hdr.nexus.targ_port) 12144 && (xio->io_hdr.nexus.initid.id == 12145 io->io_hdr.nexus.initid.id)) { 12146 /* 12147 * If the abort says that the task is untagged, the 12148 * task in the queue must be untagged. Otherwise, 12149 * we just check to see whether the tag numbers 12150 * match. This is because the QLogic firmware 12151 * doesn't pass back the tag type in an abort 12152 * request. 12153 */ 12154 #if 0 12155 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12156 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12157 || (xio->scsiio.tag_num == io->taskio.tag_num)) { 12158 #endif 12159 /* 12160 * XXX KDM we've got problems with FC, because it 12161 * doesn't send down a tag type with aborts. So we 12162 * can only really go by the tag number... 12163 * This may cause problems with parallel SCSI. 12164 * Need to figure that out!! 12165 */ 12166 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12167 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12168 found = 1; 12169 if ((io->io_hdr.flags & 12170 CTL_FLAG_FROM_OTHER_SC) == 0 && 12171 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12172 union ctl_ha_msg msg_info; 12173 12174 io->io_hdr.flags |= 12175 CTL_FLAG_SENT_2OTHER_SC; 12176 msg_info.hdr.nexus = io->io_hdr.nexus; 12177 msg_info.task.task_action = 12178 CTL_TASK_ABORT_TASK; 12179 msg_info.task.tag_num = 12180 io->taskio.tag_num; 12181 msg_info.task.tag_type = 12182 io->taskio.tag_type; 12183 msg_info.hdr.msg_type = 12184 CTL_MSG_MANAGE_TASKS; 12185 msg_info.hdr.original_sc = NULL; 12186 msg_info.hdr.serializing_sc = NULL; 12187 #if 0 12188 printf("Sent Abort to other side\n"); 12189 #endif 12190 if (CTL_HA_STATUS_SUCCESS != 12191 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12192 (void *)&msg_info, 12193 sizeof(msg_info), 0)) { 12194 } 12195 } 12196 #if 0 12197 printf("ctl_abort_task: found I/O to abort\n"); 12198 #endif 12199 break; 12200 } 12201 } 12202 } 12203 mtx_unlock(&lun->lun_lock); 12204 12205 if (found == 0) { 12206 /* 12207 * This isn't really an error. It's entirely possible for 12208 * the abort and command completion to cross on the wire. 12209 * This is more of an informative/diagnostic error. 12210 */ 12211 #if 0 12212 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12213 "%d:%d:%d:%d tag %d type %d\n", 12214 io->io_hdr.nexus.initid.id, 12215 io->io_hdr.nexus.targ_port, 12216 io->io_hdr.nexus.targ_target.id, 12217 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12218 io->taskio.tag_type); 12219 #endif 12220 } 12221 return (0); 12222 } 12223 12224 static void 12225 ctl_run_task(union ctl_io *io) 12226 { 12227 struct ctl_softc *ctl_softc = control_softc; 12228 int retval = 1; 12229 const char *task_desc; 12230 12231 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12232 12233 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12234 ("ctl_run_task: Unextected io_type %d\n", 12235 io->io_hdr.io_type)); 12236 12237 task_desc = ctl_scsi_task_string(&io->taskio); 12238 if (task_desc != NULL) { 12239 #ifdef NEEDTOPORT 12240 csevent_log(CSC_CTL | CSC_SHELF_SW | 12241 CTL_TASK_REPORT, 12242 csevent_LogType_Trace, 12243 csevent_Severity_Information, 12244 csevent_AlertLevel_Green, 12245 csevent_FRU_Firmware, 12246 csevent_FRU_Unknown, 12247 "CTL: received task: %s",task_desc); 12248 #endif 12249 } else { 12250 #ifdef NEEDTOPORT 12251 csevent_log(CSC_CTL | CSC_SHELF_SW | 12252 CTL_TASK_REPORT, 12253 csevent_LogType_Trace, 12254 csevent_Severity_Information, 12255 csevent_AlertLevel_Green, 12256 csevent_FRU_Firmware, 12257 csevent_FRU_Unknown, 12258 "CTL: received unknown task " 12259 "type: %d (%#x)", 12260 io->taskio.task_action, 12261 io->taskio.task_action); 12262 #endif 12263 } 12264 switch (io->taskio.task_action) { 12265 case CTL_TASK_ABORT_TASK: 12266 retval = ctl_abort_task(io); 12267 break; 12268 case CTL_TASK_ABORT_TASK_SET: 12269 case CTL_TASK_CLEAR_TASK_SET: 12270 retval = ctl_abort_task_set(io); 12271 break; 12272 case CTL_TASK_CLEAR_ACA: 12273 break; 12274 case CTL_TASK_I_T_NEXUS_RESET: 12275 retval = ctl_i_t_nexus_reset(io); 12276 break; 12277 case CTL_TASK_LUN_RESET: { 12278 struct ctl_lun *lun; 12279 uint32_t targ_lun; 12280 12281 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12282 mtx_lock(&ctl_softc->ctl_lock); 12283 if ((targ_lun < CTL_MAX_LUNS) 12284 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12285 lun = ctl_softc->ctl_luns[targ_lun]; 12286 else { 12287 mtx_unlock(&ctl_softc->ctl_lock); 12288 retval = 1; 12289 break; 12290 } 12291 12292 if (!(io->io_hdr.flags & 12293 CTL_FLAG_FROM_OTHER_SC)) { 12294 union ctl_ha_msg msg_info; 12295 12296 io->io_hdr.flags |= 12297 CTL_FLAG_SENT_2OTHER_SC; 12298 msg_info.hdr.msg_type = 12299 CTL_MSG_MANAGE_TASKS; 12300 msg_info.hdr.nexus = io->io_hdr.nexus; 12301 msg_info.task.task_action = 12302 CTL_TASK_LUN_RESET; 12303 msg_info.hdr.original_sc = NULL; 12304 msg_info.hdr.serializing_sc = NULL; 12305 if (CTL_HA_STATUS_SUCCESS != 12306 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12307 (void *)&msg_info, 12308 sizeof(msg_info), 0)) { 12309 } 12310 } 12311 12312 retval = ctl_lun_reset(lun, io, 12313 CTL_UA_LUN_RESET); 12314 mtx_unlock(&ctl_softc->ctl_lock); 12315 break; 12316 } 12317 case CTL_TASK_TARGET_RESET: 12318 retval = ctl_target_reset(ctl_softc, io, CTL_UA_TARG_RESET); 12319 break; 12320 case CTL_TASK_BUS_RESET: 12321 retval = ctl_bus_reset(ctl_softc, io); 12322 break; 12323 case CTL_TASK_PORT_LOGIN: 12324 break; 12325 case CTL_TASK_PORT_LOGOUT: 12326 break; 12327 default: 12328 printf("ctl_run_task: got unknown task management event %d\n", 12329 io->taskio.task_action); 12330 break; 12331 } 12332 if (retval == 0) 12333 io->io_hdr.status = CTL_SUCCESS; 12334 else 12335 io->io_hdr.status = CTL_ERROR; 12336 ctl_done(io); 12337 } 12338 12339 /* 12340 * For HA operation. Handle commands that come in from the other 12341 * controller. 12342 */ 12343 static void 12344 ctl_handle_isc(union ctl_io *io) 12345 { 12346 int free_io; 12347 struct ctl_lun *lun; 12348 struct ctl_softc *ctl_softc; 12349 uint32_t targ_lun; 12350 12351 ctl_softc = control_softc; 12352 12353 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12354 lun = ctl_softc->ctl_luns[targ_lun]; 12355 12356 switch (io->io_hdr.msg_type) { 12357 case CTL_MSG_SERIALIZE: 12358 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12359 break; 12360 case CTL_MSG_R2R: { 12361 const struct ctl_cmd_entry *entry; 12362 12363 /* 12364 * This is only used in SER_ONLY mode. 12365 */ 12366 free_io = 0; 12367 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12368 mtx_lock(&lun->lun_lock); 12369 if (ctl_scsiio_lun_check(ctl_softc, lun, 12370 entry, (struct ctl_scsiio *)io) != 0) { 12371 mtx_unlock(&lun->lun_lock); 12372 ctl_done(io); 12373 break; 12374 } 12375 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12376 mtx_unlock(&lun->lun_lock); 12377 ctl_enqueue_rtr(io); 12378 break; 12379 } 12380 case CTL_MSG_FINISH_IO: 12381 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 12382 free_io = 0; 12383 ctl_done(io); 12384 } else { 12385 free_io = 1; 12386 mtx_lock(&lun->lun_lock); 12387 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12388 ooa_links); 12389 ctl_check_blocked(lun); 12390 mtx_unlock(&lun->lun_lock); 12391 } 12392 break; 12393 case CTL_MSG_PERS_ACTION: 12394 ctl_hndl_per_res_out_on_other_sc( 12395 (union ctl_ha_msg *)&io->presio.pr_msg); 12396 free_io = 1; 12397 break; 12398 case CTL_MSG_BAD_JUJU: 12399 free_io = 0; 12400 ctl_done(io); 12401 break; 12402 case CTL_MSG_DATAMOVE: 12403 /* Only used in XFER mode */ 12404 free_io = 0; 12405 ctl_datamove_remote(io); 12406 break; 12407 case CTL_MSG_DATAMOVE_DONE: 12408 /* Only used in XFER mode */ 12409 free_io = 0; 12410 io->scsiio.be_move_done(io); 12411 break; 12412 default: 12413 free_io = 1; 12414 printf("%s: Invalid message type %d\n", 12415 __func__, io->io_hdr.msg_type); 12416 break; 12417 } 12418 if (free_io) 12419 ctl_free_io(io); 12420 12421 } 12422 12423 12424 /* 12425 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12426 * there is no match. 12427 */ 12428 static ctl_lun_error_pattern 12429 ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12430 { 12431 const struct ctl_cmd_entry *entry; 12432 ctl_lun_error_pattern filtered_pattern, pattern; 12433 12434 pattern = desc->error_pattern; 12435 12436 /* 12437 * XXX KDM we need more data passed into this function to match a 12438 * custom pattern, and we actually need to implement custom pattern 12439 * matching. 12440 */ 12441 if (pattern & CTL_LUN_PAT_CMD) 12442 return (CTL_LUN_PAT_CMD); 12443 12444 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12445 return (CTL_LUN_PAT_ANY); 12446 12447 entry = ctl_get_cmd_entry(ctsio, NULL); 12448 12449 filtered_pattern = entry->pattern & pattern; 12450 12451 /* 12452 * If the user requested specific flags in the pattern (e.g. 12453 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12454 * flags. 12455 * 12456 * If the user did not specify any flags, it doesn't matter whether 12457 * or not the command supports the flags. 12458 */ 12459 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12460 (pattern & ~CTL_LUN_PAT_MASK)) 12461 return (CTL_LUN_PAT_NONE); 12462 12463 /* 12464 * If the user asked for a range check, see if the requested LBA 12465 * range overlaps with this command's LBA range. 12466 */ 12467 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12468 uint64_t lba1; 12469 uint64_t len1; 12470 ctl_action action; 12471 int retval; 12472 12473 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12474 if (retval != 0) 12475 return (CTL_LUN_PAT_NONE); 12476 12477 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12478 desc->lba_range.len, FALSE); 12479 /* 12480 * A "pass" means that the LBA ranges don't overlap, so 12481 * this doesn't match the user's range criteria. 12482 */ 12483 if (action == CTL_ACTION_PASS) 12484 return (CTL_LUN_PAT_NONE); 12485 } 12486 12487 return (filtered_pattern); 12488 } 12489 12490 static void 12491 ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12492 { 12493 struct ctl_error_desc *desc, *desc2; 12494 12495 mtx_assert(&lun->lun_lock, MA_OWNED); 12496 12497 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12498 ctl_lun_error_pattern pattern; 12499 /* 12500 * Check to see whether this particular command matches 12501 * the pattern in the descriptor. 12502 */ 12503 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12504 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12505 continue; 12506 12507 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12508 case CTL_LUN_INJ_ABORTED: 12509 ctl_set_aborted(&io->scsiio); 12510 break; 12511 case CTL_LUN_INJ_MEDIUM_ERR: 12512 ctl_set_medium_error(&io->scsiio); 12513 break; 12514 case CTL_LUN_INJ_UA: 12515 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12516 * OCCURRED */ 12517 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12518 break; 12519 case CTL_LUN_INJ_CUSTOM: 12520 /* 12521 * We're assuming the user knows what he is doing. 12522 * Just copy the sense information without doing 12523 * checks. 12524 */ 12525 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12526 ctl_min(sizeof(desc->custom_sense), 12527 sizeof(io->scsiio.sense_data))); 12528 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12529 io->scsiio.sense_len = SSD_FULL_SIZE; 12530 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12531 break; 12532 case CTL_LUN_INJ_NONE: 12533 default: 12534 /* 12535 * If this is an error injection type we don't know 12536 * about, clear the continuous flag (if it is set) 12537 * so it will get deleted below. 12538 */ 12539 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12540 break; 12541 } 12542 /* 12543 * By default, each error injection action is a one-shot 12544 */ 12545 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12546 continue; 12547 12548 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12549 12550 free(desc, M_CTL); 12551 } 12552 } 12553 12554 #ifdef CTL_IO_DELAY 12555 static void 12556 ctl_datamove_timer_wakeup(void *arg) 12557 { 12558 union ctl_io *io; 12559 12560 io = (union ctl_io *)arg; 12561 12562 ctl_datamove(io); 12563 } 12564 #endif /* CTL_IO_DELAY */ 12565 12566 void 12567 ctl_datamove(union ctl_io *io) 12568 { 12569 void (*fe_datamove)(union ctl_io *io); 12570 12571 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12572 12573 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12574 12575 #ifdef CTL_TIME_IO 12576 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12577 char str[256]; 12578 char path_str[64]; 12579 struct sbuf sb; 12580 12581 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12582 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12583 12584 sbuf_cat(&sb, path_str); 12585 switch (io->io_hdr.io_type) { 12586 case CTL_IO_SCSI: 12587 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12588 sbuf_printf(&sb, "\n"); 12589 sbuf_cat(&sb, path_str); 12590 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12591 io->scsiio.tag_num, io->scsiio.tag_type); 12592 break; 12593 case CTL_IO_TASK: 12594 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12595 "Tag Type: %d\n", io->taskio.task_action, 12596 io->taskio.tag_num, io->taskio.tag_type); 12597 break; 12598 default: 12599 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12600 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12601 break; 12602 } 12603 sbuf_cat(&sb, path_str); 12604 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12605 (intmax_t)time_uptime - io->io_hdr.start_time); 12606 sbuf_finish(&sb); 12607 printf("%s", sbuf_data(&sb)); 12608 } 12609 #endif /* CTL_TIME_IO */ 12610 12611 #ifdef CTL_IO_DELAY 12612 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12613 struct ctl_lun *lun; 12614 12615 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12616 12617 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12618 } else { 12619 struct ctl_lun *lun; 12620 12621 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12622 if ((lun != NULL) 12623 && (lun->delay_info.datamove_delay > 0)) { 12624 struct callout *callout; 12625 12626 callout = (struct callout *)&io->io_hdr.timer_bytes; 12627 callout_init(callout, /*mpsafe*/ 1); 12628 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12629 callout_reset(callout, 12630 lun->delay_info.datamove_delay * hz, 12631 ctl_datamove_timer_wakeup, io); 12632 if (lun->delay_info.datamove_type == 12633 CTL_DELAY_TYPE_ONESHOT) 12634 lun->delay_info.datamove_delay = 0; 12635 return; 12636 } 12637 } 12638 #endif 12639 12640 /* 12641 * This command has been aborted. Set the port status, so we fail 12642 * the data move. 12643 */ 12644 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12645 printf("ctl_datamove: tag 0x%04x on (%ju:%d:%ju:%d) aborted\n", 12646 io->scsiio.tag_num,(uintmax_t)io->io_hdr.nexus.initid.id, 12647 io->io_hdr.nexus.targ_port, 12648 (uintmax_t)io->io_hdr.nexus.targ_target.id, 12649 io->io_hdr.nexus.targ_lun); 12650 io->io_hdr.port_status = 31337; 12651 /* 12652 * Note that the backend, in this case, will get the 12653 * callback in its context. In other cases it may get 12654 * called in the frontend's interrupt thread context. 12655 */ 12656 io->scsiio.be_move_done(io); 12657 return; 12658 } 12659 12660 /* Don't confuse frontend with zero length data move. */ 12661 if (io->scsiio.kern_data_len == 0) { 12662 io->scsiio.be_move_done(io); 12663 return; 12664 } 12665 12666 /* 12667 * If we're in XFER mode and this I/O is from the other shelf 12668 * controller, we need to send the DMA to the other side to 12669 * actually transfer the data to/from the host. In serialize only 12670 * mode the transfer happens below CTL and ctl_datamove() is only 12671 * called on the machine that originally received the I/O. 12672 */ 12673 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12674 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12675 union ctl_ha_msg msg; 12676 uint32_t sg_entries_sent; 12677 int do_sg_copy; 12678 int i; 12679 12680 memset(&msg, 0, sizeof(msg)); 12681 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12682 msg.hdr.original_sc = io->io_hdr.original_sc; 12683 msg.hdr.serializing_sc = io; 12684 msg.hdr.nexus = io->io_hdr.nexus; 12685 msg.dt.flags = io->io_hdr.flags; 12686 /* 12687 * We convert everything into a S/G list here. We can't 12688 * pass by reference, only by value between controllers. 12689 * So we can't pass a pointer to the S/G list, only as many 12690 * S/G entries as we can fit in here. If it's possible for 12691 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12692 * then we need to break this up into multiple transfers. 12693 */ 12694 if (io->scsiio.kern_sg_entries == 0) { 12695 msg.dt.kern_sg_entries = 1; 12696 /* 12697 * If this is in cached memory, flush the cache 12698 * before we send the DMA request to the other 12699 * controller. We want to do this in either the 12700 * read or the write case. The read case is 12701 * straightforward. In the write case, we want to 12702 * make sure nothing is in the local cache that 12703 * could overwrite the DMAed data. 12704 */ 12705 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12706 /* 12707 * XXX KDM use bus_dmamap_sync() here. 12708 */ 12709 } 12710 12711 /* 12712 * Convert to a physical address if this is a 12713 * virtual address. 12714 */ 12715 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12716 msg.dt.sg_list[0].addr = 12717 io->scsiio.kern_data_ptr; 12718 } else { 12719 /* 12720 * XXX KDM use busdma here! 12721 */ 12722 #if 0 12723 msg.dt.sg_list[0].addr = (void *) 12724 vtophys(io->scsiio.kern_data_ptr); 12725 #endif 12726 } 12727 12728 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12729 do_sg_copy = 0; 12730 } else { 12731 struct ctl_sg_entry *sgl; 12732 12733 do_sg_copy = 1; 12734 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12735 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 12736 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12737 /* 12738 * XXX KDM use bus_dmamap_sync() here. 12739 */ 12740 } 12741 } 12742 12743 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12744 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12745 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12746 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12747 msg.dt.sg_sequence = 0; 12748 12749 /* 12750 * Loop until we've sent all of the S/G entries. On the 12751 * other end, we'll recompose these S/G entries into one 12752 * contiguous list before passing it to the 12753 */ 12754 for (sg_entries_sent = 0; sg_entries_sent < 12755 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12756 msg.dt.cur_sg_entries = ctl_min((sizeof(msg.dt.sg_list)/ 12757 sizeof(msg.dt.sg_list[0])), 12758 msg.dt.kern_sg_entries - sg_entries_sent); 12759 12760 if (do_sg_copy != 0) { 12761 struct ctl_sg_entry *sgl; 12762 int j; 12763 12764 sgl = (struct ctl_sg_entry *) 12765 io->scsiio.kern_data_ptr; 12766 /* 12767 * If this is in cached memory, flush the cache 12768 * before we send the DMA request to the other 12769 * controller. We want to do this in either 12770 * the * read or the write case. The read 12771 * case is straightforward. In the write 12772 * case, we want to make sure nothing is 12773 * in the local cache that could overwrite 12774 * the DMAed data. 12775 */ 12776 12777 for (i = sg_entries_sent, j = 0; 12778 i < msg.dt.cur_sg_entries; i++, j++) { 12779 if ((io->io_hdr.flags & 12780 CTL_FLAG_NO_DATASYNC) == 0) { 12781 /* 12782 * XXX KDM use bus_dmamap_sync() 12783 */ 12784 } 12785 if ((io->io_hdr.flags & 12786 CTL_FLAG_BUS_ADDR) == 0) { 12787 /* 12788 * XXX KDM use busdma. 12789 */ 12790 #if 0 12791 msg.dt.sg_list[j].addr =(void *) 12792 vtophys(sgl[i].addr); 12793 #endif 12794 } else { 12795 msg.dt.sg_list[j].addr = 12796 sgl[i].addr; 12797 } 12798 msg.dt.sg_list[j].len = sgl[i].len; 12799 } 12800 } 12801 12802 sg_entries_sent += msg.dt.cur_sg_entries; 12803 if (sg_entries_sent >= msg.dt.kern_sg_entries) 12804 msg.dt.sg_last = 1; 12805 else 12806 msg.dt.sg_last = 0; 12807 12808 /* 12809 * XXX KDM drop and reacquire the lock here? 12810 */ 12811 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12812 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 12813 /* 12814 * XXX do something here. 12815 */ 12816 } 12817 12818 msg.dt.sent_sg_entries = sg_entries_sent; 12819 } 12820 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12821 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) 12822 ctl_failover_io(io, /*have_lock*/ 0); 12823 12824 } else { 12825 12826 /* 12827 * Lookup the fe_datamove() function for this particular 12828 * front end. 12829 */ 12830 fe_datamove = 12831 control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12832 12833 fe_datamove(io); 12834 } 12835 } 12836 12837 static void 12838 ctl_send_datamove_done(union ctl_io *io, int have_lock) 12839 { 12840 union ctl_ha_msg msg; 12841 int isc_status; 12842 12843 memset(&msg, 0, sizeof(msg)); 12844 12845 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12846 msg.hdr.original_sc = io; 12847 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12848 msg.hdr.nexus = io->io_hdr.nexus; 12849 msg.hdr.status = io->io_hdr.status; 12850 msg.scsi.tag_num = io->scsiio.tag_num; 12851 msg.scsi.tag_type = io->scsiio.tag_type; 12852 msg.scsi.scsi_status = io->scsiio.scsi_status; 12853 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12854 sizeof(io->scsiio.sense_data)); 12855 msg.scsi.sense_len = io->scsiio.sense_len; 12856 msg.scsi.sense_residual = io->scsiio.sense_residual; 12857 msg.scsi.fetd_status = io->io_hdr.port_status; 12858 msg.scsi.residual = io->scsiio.residual; 12859 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12860 12861 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12862 ctl_failover_io(io, /*have_lock*/ have_lock); 12863 return; 12864 } 12865 12866 isc_status = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0); 12867 if (isc_status > CTL_HA_STATUS_SUCCESS) { 12868 /* XXX do something if this fails */ 12869 } 12870 12871 } 12872 12873 /* 12874 * The DMA to the remote side is done, now we need to tell the other side 12875 * we're done so it can continue with its data movement. 12876 */ 12877 static void 12878 ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12879 { 12880 union ctl_io *io; 12881 12882 io = rq->context; 12883 12884 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12885 printf("%s: ISC DMA write failed with error %d", __func__, 12886 rq->ret); 12887 ctl_set_internal_failure(&io->scsiio, 12888 /*sks_valid*/ 1, 12889 /*retry_count*/ rq->ret); 12890 } 12891 12892 ctl_dt_req_free(rq); 12893 12894 /* 12895 * In this case, we had to malloc the memory locally. Free it. 12896 */ 12897 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12898 int i; 12899 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12900 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12901 } 12902 /* 12903 * The data is in local and remote memory, so now we need to send 12904 * status (good or back) back to the other side. 12905 */ 12906 ctl_send_datamove_done(io, /*have_lock*/ 0); 12907 } 12908 12909 /* 12910 * We've moved the data from the host/controller into local memory. Now we 12911 * need to push it over to the remote controller's memory. 12912 */ 12913 static int 12914 ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12915 { 12916 int retval; 12917 12918 retval = 0; 12919 12920 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12921 ctl_datamove_remote_write_cb); 12922 12923 return (retval); 12924 } 12925 12926 static void 12927 ctl_datamove_remote_write(union ctl_io *io) 12928 { 12929 int retval; 12930 void (*fe_datamove)(union ctl_io *io); 12931 12932 /* 12933 * - Get the data from the host/HBA into local memory. 12934 * - DMA memory from the local controller to the remote controller. 12935 * - Send status back to the remote controller. 12936 */ 12937 12938 retval = ctl_datamove_remote_sgl_setup(io); 12939 if (retval != 0) 12940 return; 12941 12942 /* Switch the pointer over so the FETD knows what to do */ 12943 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12944 12945 /* 12946 * Use a custom move done callback, since we need to send completion 12947 * back to the other controller, not to the backend on this side. 12948 */ 12949 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12950 12951 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12952 12953 fe_datamove(io); 12954 12955 return; 12956 12957 } 12958 12959 static int 12960 ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12961 { 12962 #if 0 12963 char str[256]; 12964 char path_str[64]; 12965 struct sbuf sb; 12966 #endif 12967 12968 /* 12969 * In this case, we had to malloc the memory locally. Free it. 12970 */ 12971 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12972 int i; 12973 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12974 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12975 } 12976 12977 #if 0 12978 scsi_path_string(io, path_str, sizeof(path_str)); 12979 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12980 sbuf_cat(&sb, path_str); 12981 scsi_command_string(&io->scsiio, NULL, &sb); 12982 sbuf_printf(&sb, "\n"); 12983 sbuf_cat(&sb, path_str); 12984 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12985 io->scsiio.tag_num, io->scsiio.tag_type); 12986 sbuf_cat(&sb, path_str); 12987 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12988 io->io_hdr.flags, io->io_hdr.status); 12989 sbuf_finish(&sb); 12990 printk("%s", sbuf_data(&sb)); 12991 #endif 12992 12993 12994 /* 12995 * The read is done, now we need to send status (good or bad) back 12996 * to the other side. 12997 */ 12998 ctl_send_datamove_done(io, /*have_lock*/ 0); 12999 13000 return (0); 13001 } 13002 13003 static void 13004 ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 13005 { 13006 union ctl_io *io; 13007 void (*fe_datamove)(union ctl_io *io); 13008 13009 io = rq->context; 13010 13011 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 13012 printf("%s: ISC DMA read failed with error %d", __func__, 13013 rq->ret); 13014 ctl_set_internal_failure(&io->scsiio, 13015 /*sks_valid*/ 1, 13016 /*retry_count*/ rq->ret); 13017 } 13018 13019 ctl_dt_req_free(rq); 13020 13021 /* Switch the pointer over so the FETD knows what to do */ 13022 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 13023 13024 /* 13025 * Use a custom move done callback, since we need to send completion 13026 * back to the other controller, not to the backend on this side. 13027 */ 13028 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 13029 13030 /* XXX KDM add checks like the ones in ctl_datamove? */ 13031 13032 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 13033 13034 fe_datamove(io); 13035 } 13036 13037 static int 13038 ctl_datamove_remote_sgl_setup(union ctl_io *io) 13039 { 13040 struct ctl_sg_entry *local_sglist, *remote_sglist; 13041 struct ctl_sg_entry *local_dma_sglist, *remote_dma_sglist; 13042 struct ctl_softc *softc; 13043 int retval; 13044 int i; 13045 13046 retval = 0; 13047 softc = control_softc; 13048 13049 local_sglist = io->io_hdr.local_sglist; 13050 local_dma_sglist = io->io_hdr.local_dma_sglist; 13051 remote_sglist = io->io_hdr.remote_sglist; 13052 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13053 13054 if (io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) { 13055 for (i = 0; i < io->scsiio.kern_sg_entries; i++) { 13056 local_sglist[i].len = remote_sglist[i].len; 13057 13058 /* 13059 * XXX Detect the situation where the RS-level I/O 13060 * redirector on the other side has already read the 13061 * data off of the AOR RS on this side, and 13062 * transferred it to remote (mirror) memory on the 13063 * other side. Since we already have the data in 13064 * memory here, we just need to use it. 13065 * 13066 * XXX KDM this can probably be removed once we 13067 * get the cache device code in and take the 13068 * current AOR implementation out. 13069 */ 13070 #ifdef NEEDTOPORT 13071 if ((remote_sglist[i].addr >= 13072 (void *)vtophys(softc->mirr->addr)) 13073 && (remote_sglist[i].addr < 13074 ((void *)vtophys(softc->mirr->addr) + 13075 CacheMirrorOffset))) { 13076 local_sglist[i].addr = remote_sglist[i].addr - 13077 CacheMirrorOffset; 13078 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13079 CTL_FLAG_DATA_IN) 13080 io->io_hdr.flags |= CTL_FLAG_REDIR_DONE; 13081 } else { 13082 local_sglist[i].addr = remote_sglist[i].addr + 13083 CacheMirrorOffset; 13084 } 13085 #endif 13086 #if 0 13087 printf("%s: local %p, remote %p, len %d\n", 13088 __func__, local_sglist[i].addr, 13089 remote_sglist[i].addr, local_sglist[i].len); 13090 #endif 13091 } 13092 } else { 13093 uint32_t len_to_go; 13094 13095 /* 13096 * In this case, we don't have automatically allocated 13097 * memory for this I/O on this controller. This typically 13098 * happens with internal CTL I/O -- e.g. inquiry, mode 13099 * sense, etc. Anything coming from RAIDCore will have 13100 * a mirror area available. 13101 */ 13102 len_to_go = io->scsiio.kern_data_len; 13103 13104 /* 13105 * Clear the no datasync flag, we have to use malloced 13106 * buffers. 13107 */ 13108 io->io_hdr.flags &= ~CTL_FLAG_NO_DATASYNC; 13109 13110 /* 13111 * The difficult thing here is that the size of the various 13112 * S/G segments may be different than the size from the 13113 * remote controller. That'll make it harder when DMAing 13114 * the data back to the other side. 13115 */ 13116 for (i = 0; (i < sizeof(io->io_hdr.remote_sglist) / 13117 sizeof(io->io_hdr.remote_sglist[0])) && 13118 (len_to_go > 0); i++) { 13119 local_sglist[i].len = ctl_min(len_to_go, 131072); 13120 CTL_SIZE_8B(local_dma_sglist[i].len, 13121 local_sglist[i].len); 13122 local_sglist[i].addr = 13123 malloc(local_dma_sglist[i].len, M_CTL,M_WAITOK); 13124 13125 local_dma_sglist[i].addr = local_sglist[i].addr; 13126 13127 if (local_sglist[i].addr == NULL) { 13128 int j; 13129 13130 printf("malloc failed for %zd bytes!", 13131 local_dma_sglist[i].len); 13132 for (j = 0; j < i; j++) { 13133 free(local_sglist[j].addr, M_CTL); 13134 } 13135 ctl_set_internal_failure(&io->scsiio, 13136 /*sks_valid*/ 1, 13137 /*retry_count*/ 4857); 13138 retval = 1; 13139 goto bailout_error; 13140 13141 } 13142 /* XXX KDM do we need a sync here? */ 13143 13144 len_to_go -= local_sglist[i].len; 13145 } 13146 /* 13147 * Reset the number of S/G entries accordingly. The 13148 * original number of S/G entries is available in 13149 * rem_sg_entries. 13150 */ 13151 io->scsiio.kern_sg_entries = i; 13152 13153 #if 0 13154 printf("%s: kern_sg_entries = %d\n", __func__, 13155 io->scsiio.kern_sg_entries); 13156 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13157 printf("%s: sg[%d] = %p, %d (DMA: %d)\n", __func__, i, 13158 local_sglist[i].addr, local_sglist[i].len, 13159 local_dma_sglist[i].len); 13160 #endif 13161 } 13162 13163 13164 return (retval); 13165 13166 bailout_error: 13167 13168 ctl_send_datamove_done(io, /*have_lock*/ 0); 13169 13170 return (retval); 13171 } 13172 13173 static int 13174 ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 13175 ctl_ha_dt_cb callback) 13176 { 13177 struct ctl_ha_dt_req *rq; 13178 struct ctl_sg_entry *remote_sglist, *local_sglist; 13179 struct ctl_sg_entry *remote_dma_sglist, *local_dma_sglist; 13180 uint32_t local_used, remote_used, total_used; 13181 int retval; 13182 int i, j; 13183 13184 retval = 0; 13185 13186 rq = ctl_dt_req_alloc(); 13187 13188 /* 13189 * If we failed to allocate the request, and if the DMA didn't fail 13190 * anyway, set busy status. This is just a resource allocation 13191 * failure. 13192 */ 13193 if ((rq == NULL) 13194 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)) 13195 ctl_set_busy(&io->scsiio); 13196 13197 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 13198 13199 if (rq != NULL) 13200 ctl_dt_req_free(rq); 13201 13202 /* 13203 * The data move failed. We need to return status back 13204 * to the other controller. No point in trying to DMA 13205 * data to the remote controller. 13206 */ 13207 13208 ctl_send_datamove_done(io, /*have_lock*/ 0); 13209 13210 retval = 1; 13211 13212 goto bailout; 13213 } 13214 13215 local_sglist = io->io_hdr.local_sglist; 13216 local_dma_sglist = io->io_hdr.local_dma_sglist; 13217 remote_sglist = io->io_hdr.remote_sglist; 13218 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13219 local_used = 0; 13220 remote_used = 0; 13221 total_used = 0; 13222 13223 if (io->io_hdr.flags & CTL_FLAG_REDIR_DONE) { 13224 rq->ret = CTL_HA_STATUS_SUCCESS; 13225 rq->context = io; 13226 callback(rq); 13227 goto bailout; 13228 } 13229 13230 /* 13231 * Pull/push the data over the wire from/to the other controller. 13232 * This takes into account the possibility that the local and 13233 * remote sglists may not be identical in terms of the size of 13234 * the elements and the number of elements. 13235 * 13236 * One fundamental assumption here is that the length allocated for 13237 * both the local and remote sglists is identical. Otherwise, we've 13238 * essentially got a coding error of some sort. 13239 */ 13240 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 13241 int isc_ret; 13242 uint32_t cur_len, dma_length; 13243 uint8_t *tmp_ptr; 13244 13245 rq->id = CTL_HA_DATA_CTL; 13246 rq->command = command; 13247 rq->context = io; 13248 13249 /* 13250 * Both pointers should be aligned. But it is possible 13251 * that the allocation length is not. They should both 13252 * also have enough slack left over at the end, though, 13253 * to round up to the next 8 byte boundary. 13254 */ 13255 cur_len = ctl_min(local_sglist[i].len - local_used, 13256 remote_sglist[j].len - remote_used); 13257 13258 /* 13259 * In this case, we have a size issue and need to decrease 13260 * the size, except in the case where we actually have less 13261 * than 8 bytes left. In that case, we need to increase 13262 * the DMA length to get the last bit. 13263 */ 13264 if ((cur_len & 0x7) != 0) { 13265 if (cur_len > 0x7) { 13266 cur_len = cur_len - (cur_len & 0x7); 13267 dma_length = cur_len; 13268 } else { 13269 CTL_SIZE_8B(dma_length, cur_len); 13270 } 13271 13272 } else 13273 dma_length = cur_len; 13274 13275 /* 13276 * If we had to allocate memory for this I/O, instead of using 13277 * the non-cached mirror memory, we'll need to flush the cache 13278 * before trying to DMA to the other controller. 13279 * 13280 * We could end up doing this multiple times for the same 13281 * segment if we have a larger local segment than remote 13282 * segment. That shouldn't be an issue. 13283 */ 13284 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 13285 /* 13286 * XXX KDM use bus_dmamap_sync() here. 13287 */ 13288 } 13289 13290 rq->size = dma_length; 13291 13292 tmp_ptr = (uint8_t *)local_sglist[i].addr; 13293 tmp_ptr += local_used; 13294 13295 /* Use physical addresses when talking to ISC hardware */ 13296 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 13297 /* XXX KDM use busdma */ 13298 #if 0 13299 rq->local = vtophys(tmp_ptr); 13300 #endif 13301 } else 13302 rq->local = tmp_ptr; 13303 13304 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 13305 tmp_ptr += remote_used; 13306 rq->remote = tmp_ptr; 13307 13308 rq->callback = NULL; 13309 13310 local_used += cur_len; 13311 if (local_used >= local_sglist[i].len) { 13312 i++; 13313 local_used = 0; 13314 } 13315 13316 remote_used += cur_len; 13317 if (remote_used >= remote_sglist[j].len) { 13318 j++; 13319 remote_used = 0; 13320 } 13321 total_used += cur_len; 13322 13323 if (total_used >= io->scsiio.kern_data_len) 13324 rq->callback = callback; 13325 13326 if ((rq->size & 0x7) != 0) { 13327 printf("%s: warning: size %d is not on 8b boundary\n", 13328 __func__, rq->size); 13329 } 13330 if (((uintptr_t)rq->local & 0x7) != 0) { 13331 printf("%s: warning: local %p not on 8b boundary\n", 13332 __func__, rq->local); 13333 } 13334 if (((uintptr_t)rq->remote & 0x7) != 0) { 13335 printf("%s: warning: remote %p not on 8b boundary\n", 13336 __func__, rq->local); 13337 } 13338 #if 0 13339 printf("%s: %s: local %#x remote %#x size %d\n", __func__, 13340 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13341 rq->local, rq->remote, rq->size); 13342 #endif 13343 13344 isc_ret = ctl_dt_single(rq); 13345 if (isc_ret == CTL_HA_STATUS_WAIT) 13346 continue; 13347 13348 if (isc_ret == CTL_HA_STATUS_DISCONNECT) { 13349 rq->ret = CTL_HA_STATUS_SUCCESS; 13350 } else { 13351 rq->ret = isc_ret; 13352 } 13353 callback(rq); 13354 goto bailout; 13355 } 13356 13357 bailout: 13358 return (retval); 13359 13360 } 13361 13362 static void 13363 ctl_datamove_remote_read(union ctl_io *io) 13364 { 13365 int retval; 13366 int i; 13367 13368 /* 13369 * This will send an error to the other controller in the case of a 13370 * failure. 13371 */ 13372 retval = ctl_datamove_remote_sgl_setup(io); 13373 if (retval != 0) 13374 return; 13375 13376 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13377 ctl_datamove_remote_read_cb); 13378 if ((retval != 0) 13379 && ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0)) { 13380 /* 13381 * Make sure we free memory if there was an error.. The 13382 * ctl_datamove_remote_xfer() function will send the 13383 * datamove done message, or call the callback with an 13384 * error if there is a problem. 13385 */ 13386 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13387 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13388 } 13389 13390 return; 13391 } 13392 13393 /* 13394 * Process a datamove request from the other controller. This is used for 13395 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13396 * first. Once that is complete, the data gets DMAed into the remote 13397 * controller's memory. For reads, we DMA from the remote controller's 13398 * memory into our memory first, and then move it out to the FETD. 13399 */ 13400 static void 13401 ctl_datamove_remote(union ctl_io *io) 13402 { 13403 struct ctl_softc *softc; 13404 13405 softc = control_softc; 13406 13407 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 13408 13409 /* 13410 * Note that we look for an aborted I/O here, but don't do some of 13411 * the other checks that ctl_datamove() normally does. 13412 * We don't need to run the datamove delay code, since that should 13413 * have been done if need be on the other controller. 13414 */ 13415 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13416 printf("%s: tag 0x%04x on (%d:%d:%d:%d) aborted\n", __func__, 13417 io->scsiio.tag_num, io->io_hdr.nexus.initid.id, 13418 io->io_hdr.nexus.targ_port, 13419 io->io_hdr.nexus.targ_target.id, 13420 io->io_hdr.nexus.targ_lun); 13421 io->io_hdr.port_status = 31338; 13422 ctl_send_datamove_done(io, /*have_lock*/ 0); 13423 return; 13424 } 13425 13426 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) { 13427 ctl_datamove_remote_write(io); 13428 } else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN){ 13429 ctl_datamove_remote_read(io); 13430 } else { 13431 union ctl_ha_msg msg; 13432 struct scsi_sense_data *sense; 13433 uint8_t sks[3]; 13434 int retry_count; 13435 13436 memset(&msg, 0, sizeof(msg)); 13437 13438 msg.hdr.msg_type = CTL_MSG_BAD_JUJU; 13439 msg.hdr.status = CTL_SCSI_ERROR; 13440 msg.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 13441 13442 retry_count = 4243; 13443 13444 sense = &msg.scsi.sense_data; 13445 sks[0] = SSD_SCS_VALID; 13446 sks[1] = (retry_count >> 8) & 0xff; 13447 sks[2] = retry_count & 0xff; 13448 13449 /* "Internal target failure" */ 13450 scsi_set_sense_data(sense, 13451 /*sense_format*/ SSD_TYPE_NONE, 13452 /*current_error*/ 1, 13453 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 13454 /*asc*/ 0x44, 13455 /*ascq*/ 0x00, 13456 /*type*/ SSD_ELEM_SKS, 13457 /*size*/ sizeof(sks), 13458 /*data*/ sks, 13459 SSD_ELEM_NONE); 13460 13461 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13462 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13463 ctl_failover_io(io, /*have_lock*/ 1); 13464 return; 13465 } 13466 13467 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0) > 13468 CTL_HA_STATUS_SUCCESS) { 13469 /* XXX KDM what to do if this fails? */ 13470 } 13471 return; 13472 } 13473 13474 } 13475 13476 static int 13477 ctl_process_done(union ctl_io *io) 13478 { 13479 struct ctl_lun *lun; 13480 struct ctl_softc *ctl_softc = control_softc; 13481 void (*fe_done)(union ctl_io *io); 13482 uint32_t targ_port = ctl_port_idx(io->io_hdr.nexus.targ_port); 13483 13484 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13485 13486 fe_done = 13487 control_softc->ctl_ports[targ_port]->fe_done; 13488 13489 #ifdef CTL_TIME_IO 13490 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13491 char str[256]; 13492 char path_str[64]; 13493 struct sbuf sb; 13494 13495 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13496 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13497 13498 sbuf_cat(&sb, path_str); 13499 switch (io->io_hdr.io_type) { 13500 case CTL_IO_SCSI: 13501 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13502 sbuf_printf(&sb, "\n"); 13503 sbuf_cat(&sb, path_str); 13504 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13505 io->scsiio.tag_num, io->scsiio.tag_type); 13506 break; 13507 case CTL_IO_TASK: 13508 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13509 "Tag Type: %d\n", io->taskio.task_action, 13510 io->taskio.tag_num, io->taskio.tag_type); 13511 break; 13512 default: 13513 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13514 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13515 break; 13516 } 13517 sbuf_cat(&sb, path_str); 13518 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13519 (intmax_t)time_uptime - io->io_hdr.start_time); 13520 sbuf_finish(&sb); 13521 printf("%s", sbuf_data(&sb)); 13522 } 13523 #endif /* CTL_TIME_IO */ 13524 13525 switch (io->io_hdr.io_type) { 13526 case CTL_IO_SCSI: 13527 break; 13528 case CTL_IO_TASK: 13529 if (bootverbose || (ctl_debug & CTL_DEBUG_INFO)) 13530 ctl_io_error_print(io, NULL); 13531 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 13532 ctl_free_io(io); 13533 else 13534 fe_done(io); 13535 return (CTL_RETVAL_COMPLETE); 13536 default: 13537 panic("ctl_process_done: invalid io type %d\n", 13538 io->io_hdr.io_type); 13539 break; /* NOTREACHED */ 13540 } 13541 13542 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13543 if (lun == NULL) { 13544 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13545 io->io_hdr.nexus.targ_mapped_lun)); 13546 goto bailout; 13547 } 13548 13549 mtx_lock(&lun->lun_lock); 13550 13551 /* 13552 * Check to see if we have any errors to inject here. We only 13553 * inject errors for commands that don't already have errors set. 13554 */ 13555 if ((STAILQ_FIRST(&lun->error_list) != NULL) && 13556 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) && 13557 ((io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0)) 13558 ctl_inject_error(lun, io); 13559 13560 /* 13561 * XXX KDM how do we treat commands that aren't completed 13562 * successfully? 13563 * 13564 * XXX KDM should we also track I/O latency? 13565 */ 13566 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13567 io->io_hdr.io_type == CTL_IO_SCSI) { 13568 #ifdef CTL_TIME_IO 13569 struct bintime cur_bt; 13570 #endif 13571 int type; 13572 13573 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13574 CTL_FLAG_DATA_IN) 13575 type = CTL_STATS_READ; 13576 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13577 CTL_FLAG_DATA_OUT) 13578 type = CTL_STATS_WRITE; 13579 else 13580 type = CTL_STATS_NO_IO; 13581 13582 lun->stats.ports[targ_port].bytes[type] += 13583 io->scsiio.kern_total_len; 13584 lun->stats.ports[targ_port].operations[type]++; 13585 #ifdef CTL_TIME_IO 13586 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13587 &io->io_hdr.dma_bt); 13588 lun->stats.ports[targ_port].num_dmas[type] += 13589 io->io_hdr.num_dmas; 13590 getbintime(&cur_bt); 13591 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13592 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13593 #endif 13594 } 13595 13596 /* 13597 * Remove this from the OOA queue. 13598 */ 13599 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13600 13601 /* 13602 * Run through the blocked queue on this LUN and see if anything 13603 * has become unblocked, now that this transaction is done. 13604 */ 13605 ctl_check_blocked(lun); 13606 13607 /* 13608 * If the LUN has been invalidated, free it if there is nothing 13609 * left on its OOA queue. 13610 */ 13611 if ((lun->flags & CTL_LUN_INVALID) 13612 && TAILQ_EMPTY(&lun->ooa_queue)) { 13613 mtx_unlock(&lun->lun_lock); 13614 mtx_lock(&ctl_softc->ctl_lock); 13615 ctl_free_lun(lun); 13616 mtx_unlock(&ctl_softc->ctl_lock); 13617 } else 13618 mtx_unlock(&lun->lun_lock); 13619 13620 bailout: 13621 13622 /* 13623 * If this command has been aborted, make sure we set the status 13624 * properly. The FETD is responsible for freeing the I/O and doing 13625 * whatever it needs to do to clean up its state. 13626 */ 13627 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13628 ctl_set_task_aborted(&io->scsiio); 13629 13630 /* 13631 * If enabled, print command error status. 13632 * We don't print UAs unless debugging was enabled explicitly. 13633 */ 13634 do { 13635 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) 13636 break; 13637 if (!bootverbose && (ctl_debug & CTL_DEBUG_INFO) == 0) 13638 break; 13639 if ((ctl_debug & CTL_DEBUG_INFO) == 0 && 13640 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SCSI_ERROR) && 13641 (io->scsiio.scsi_status == SCSI_STATUS_CHECK_COND)) { 13642 int error_code, sense_key, asc, ascq; 13643 13644 scsi_extract_sense_len(&io->scsiio.sense_data, 13645 io->scsiio.sense_len, &error_code, &sense_key, 13646 &asc, &ascq, /*show_errors*/ 0); 13647 if (sense_key == SSD_KEY_UNIT_ATTENTION) 13648 break; 13649 } 13650 13651 ctl_io_error_print(io, NULL); 13652 } while (0); 13653 13654 /* 13655 * Tell the FETD or the other shelf controller we're done with this 13656 * command. Note that only SCSI commands get to this point. Task 13657 * management commands are completed above. 13658 * 13659 * We only send status to the other controller if we're in XFER 13660 * mode. In SER_ONLY mode, the I/O is done on the controller that 13661 * received the I/O (from CTL's perspective), and so the status is 13662 * generated there. 13663 * 13664 * XXX KDM if we hold the lock here, we could cause a deadlock 13665 * if the frontend comes back in in this context to queue 13666 * something. 13667 */ 13668 if ((ctl_softc->ha_mode == CTL_HA_MODE_XFER) 13669 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 13670 union ctl_ha_msg msg; 13671 13672 memset(&msg, 0, sizeof(msg)); 13673 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13674 msg.hdr.original_sc = io->io_hdr.original_sc; 13675 msg.hdr.nexus = io->io_hdr.nexus; 13676 msg.hdr.status = io->io_hdr.status; 13677 msg.scsi.scsi_status = io->scsiio.scsi_status; 13678 msg.scsi.tag_num = io->scsiio.tag_num; 13679 msg.scsi.tag_type = io->scsiio.tag_type; 13680 msg.scsi.sense_len = io->scsiio.sense_len; 13681 msg.scsi.sense_residual = io->scsiio.sense_residual; 13682 msg.scsi.residual = io->scsiio.residual; 13683 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13684 sizeof(io->scsiio.sense_data)); 13685 /* 13686 * We copy this whether or not this is an I/O-related 13687 * command. Otherwise, we'd have to go and check to see 13688 * whether it's a read/write command, and it really isn't 13689 * worth it. 13690 */ 13691 memcpy(&msg.scsi.lbalen, 13692 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 13693 sizeof(msg.scsi.lbalen)); 13694 13695 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13696 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13697 /* XXX do something here */ 13698 } 13699 13700 ctl_free_io(io); 13701 } else 13702 fe_done(io); 13703 13704 return (CTL_RETVAL_COMPLETE); 13705 } 13706 13707 #ifdef CTL_WITH_CA 13708 /* 13709 * Front end should call this if it doesn't do autosense. When the request 13710 * sense comes back in from the initiator, we'll dequeue this and send it. 13711 */ 13712 int 13713 ctl_queue_sense(union ctl_io *io) 13714 { 13715 struct ctl_lun *lun; 13716 struct ctl_softc *ctl_softc; 13717 uint32_t initidx, targ_lun; 13718 13719 ctl_softc = control_softc; 13720 13721 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13722 13723 /* 13724 * LUN lookup will likely move to the ctl_work_thread() once we 13725 * have our new queueing infrastructure (that doesn't put things on 13726 * a per-LUN queue initially). That is so that we can handle 13727 * things like an INQUIRY to a LUN that we don't have enabled. We 13728 * can't deal with that right now. 13729 */ 13730 mtx_lock(&ctl_softc->ctl_lock); 13731 13732 /* 13733 * If we don't have a LUN for this, just toss the sense 13734 * information. 13735 */ 13736 targ_lun = io->io_hdr.nexus.targ_lun; 13737 targ_lun = ctl_map_lun(io->io_hdr.nexus.targ_port, targ_lun); 13738 if ((targ_lun < CTL_MAX_LUNS) 13739 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 13740 lun = ctl_softc->ctl_luns[targ_lun]; 13741 else 13742 goto bailout; 13743 13744 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13745 13746 mtx_lock(&lun->lun_lock); 13747 /* 13748 * Already have CA set for this LUN...toss the sense information. 13749 */ 13750 if (ctl_is_set(lun->have_ca, initidx)) { 13751 mtx_unlock(&lun->lun_lock); 13752 goto bailout; 13753 } 13754 13755 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13756 ctl_min(sizeof(lun->pending_sense[initidx]), 13757 sizeof(io->scsiio.sense_data))); 13758 ctl_set_mask(lun->have_ca, initidx); 13759 mtx_unlock(&lun->lun_lock); 13760 13761 bailout: 13762 mtx_unlock(&ctl_softc->ctl_lock); 13763 13764 ctl_free_io(io); 13765 13766 return (CTL_RETVAL_COMPLETE); 13767 } 13768 #endif 13769 13770 /* 13771 * Primary command inlet from frontend ports. All SCSI and task I/O 13772 * requests must go through this function. 13773 */ 13774 int 13775 ctl_queue(union ctl_io *io) 13776 { 13777 struct ctl_softc *ctl_softc; 13778 13779 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13780 13781 ctl_softc = control_softc; 13782 13783 #ifdef CTL_TIME_IO 13784 io->io_hdr.start_time = time_uptime; 13785 getbintime(&io->io_hdr.start_bt); 13786 #endif /* CTL_TIME_IO */ 13787 13788 /* Map FE-specific LUN ID into global one. */ 13789 io->io_hdr.nexus.targ_mapped_lun = 13790 ctl_map_lun(io->io_hdr.nexus.targ_port, io->io_hdr.nexus.targ_lun); 13791 13792 switch (io->io_hdr.io_type) { 13793 case CTL_IO_SCSI: 13794 case CTL_IO_TASK: 13795 if (ctl_debug & CTL_DEBUG_CDB) 13796 ctl_io_print(io); 13797 ctl_enqueue_incoming(io); 13798 break; 13799 default: 13800 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13801 return (EINVAL); 13802 } 13803 13804 return (CTL_RETVAL_COMPLETE); 13805 } 13806 13807 #ifdef CTL_IO_DELAY 13808 static void 13809 ctl_done_timer_wakeup(void *arg) 13810 { 13811 union ctl_io *io; 13812 13813 io = (union ctl_io *)arg; 13814 ctl_done(io); 13815 } 13816 #endif /* CTL_IO_DELAY */ 13817 13818 void 13819 ctl_done(union ctl_io *io) 13820 { 13821 struct ctl_softc *ctl_softc; 13822 13823 ctl_softc = control_softc; 13824 13825 /* 13826 * Enable this to catch duplicate completion issues. 13827 */ 13828 #if 0 13829 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13830 printf("%s: type %d msg %d cdb %x iptl: " 13831 "%d:%d:%d:%d tag 0x%04x " 13832 "flag %#x status %x\n", 13833 __func__, 13834 io->io_hdr.io_type, 13835 io->io_hdr.msg_type, 13836 io->scsiio.cdb[0], 13837 io->io_hdr.nexus.initid.id, 13838 io->io_hdr.nexus.targ_port, 13839 io->io_hdr.nexus.targ_target.id, 13840 io->io_hdr.nexus.targ_lun, 13841 (io->io_hdr.io_type == 13842 CTL_IO_TASK) ? 13843 io->taskio.tag_num : 13844 io->scsiio.tag_num, 13845 io->io_hdr.flags, 13846 io->io_hdr.status); 13847 } else 13848 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13849 #endif 13850 13851 /* 13852 * This is an internal copy of an I/O, and should not go through 13853 * the normal done processing logic. 13854 */ 13855 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13856 return; 13857 13858 /* 13859 * We need to send a msg to the serializing shelf to finish the IO 13860 * as well. We don't send a finish message to the other shelf if 13861 * this is a task management command. Task management commands 13862 * aren't serialized in the OOA queue, but rather just executed on 13863 * both shelf controllers for commands that originated on that 13864 * controller. 13865 */ 13866 if ((io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC) 13867 && (io->io_hdr.io_type != CTL_IO_TASK)) { 13868 union ctl_ha_msg msg_io; 13869 13870 msg_io.hdr.msg_type = CTL_MSG_FINISH_IO; 13871 msg_io.hdr.serializing_sc = io->io_hdr.serializing_sc; 13872 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_io, 13873 sizeof(msg_io), 0 ) != CTL_HA_STATUS_SUCCESS) { 13874 } 13875 /* continue on to finish IO */ 13876 } 13877 #ifdef CTL_IO_DELAY 13878 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13879 struct ctl_lun *lun; 13880 13881 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13882 13883 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13884 } else { 13885 struct ctl_lun *lun; 13886 13887 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13888 13889 if ((lun != NULL) 13890 && (lun->delay_info.done_delay > 0)) { 13891 struct callout *callout; 13892 13893 callout = (struct callout *)&io->io_hdr.timer_bytes; 13894 callout_init(callout, /*mpsafe*/ 1); 13895 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13896 callout_reset(callout, 13897 lun->delay_info.done_delay * hz, 13898 ctl_done_timer_wakeup, io); 13899 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13900 lun->delay_info.done_delay = 0; 13901 return; 13902 } 13903 } 13904 #endif /* CTL_IO_DELAY */ 13905 13906 ctl_enqueue_done(io); 13907 } 13908 13909 int 13910 ctl_isc(struct ctl_scsiio *ctsio) 13911 { 13912 struct ctl_lun *lun; 13913 int retval; 13914 13915 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13916 13917 CTL_DEBUG_PRINT(("ctl_isc: command: %02x\n", ctsio->cdb[0])); 13918 13919 CTL_DEBUG_PRINT(("ctl_isc: calling data_submit()\n")); 13920 13921 retval = lun->backend->data_submit((union ctl_io *)ctsio); 13922 13923 return (retval); 13924 } 13925 13926 13927 static void 13928 ctl_work_thread(void *arg) 13929 { 13930 struct ctl_thread *thr = (struct ctl_thread *)arg; 13931 struct ctl_softc *softc = thr->ctl_softc; 13932 union ctl_io *io; 13933 int retval; 13934 13935 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13936 13937 for (;;) { 13938 retval = 0; 13939 13940 /* 13941 * We handle the queues in this order: 13942 * - ISC 13943 * - done queue (to free up resources, unblock other commands) 13944 * - RtR queue 13945 * - incoming queue 13946 * 13947 * If those queues are empty, we break out of the loop and 13948 * go to sleep. 13949 */ 13950 mtx_lock(&thr->queue_lock); 13951 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13952 if (io != NULL) { 13953 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13954 mtx_unlock(&thr->queue_lock); 13955 ctl_handle_isc(io); 13956 continue; 13957 } 13958 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13959 if (io != NULL) { 13960 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13961 /* clear any blocked commands, call fe_done */ 13962 mtx_unlock(&thr->queue_lock); 13963 retval = ctl_process_done(io); 13964 continue; 13965 } 13966 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13967 if (io != NULL) { 13968 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13969 mtx_unlock(&thr->queue_lock); 13970 if (io->io_hdr.io_type == CTL_IO_TASK) 13971 ctl_run_task(io); 13972 else 13973 ctl_scsiio_precheck(softc, &io->scsiio); 13974 continue; 13975 } 13976 if (!ctl_pause_rtr) { 13977 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13978 if (io != NULL) { 13979 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13980 mtx_unlock(&thr->queue_lock); 13981 retval = ctl_scsiio(&io->scsiio); 13982 if (retval != CTL_RETVAL_COMPLETE) 13983 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13984 continue; 13985 } 13986 } 13987 13988 /* Sleep until we have something to do. */ 13989 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13990 } 13991 } 13992 13993 static void 13994 ctl_lun_thread(void *arg) 13995 { 13996 struct ctl_softc *softc = (struct ctl_softc *)arg; 13997 struct ctl_be_lun *be_lun; 13998 int retval; 13999 14000 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 14001 14002 for (;;) { 14003 retval = 0; 14004 mtx_lock(&softc->ctl_lock); 14005 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 14006 if (be_lun != NULL) { 14007 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 14008 mtx_unlock(&softc->ctl_lock); 14009 ctl_create_lun(be_lun); 14010 continue; 14011 } 14012 14013 /* Sleep until we have something to do. */ 14014 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 14015 PDROP | PRIBIO, "-", 0); 14016 } 14017 } 14018 14019 static void 14020 ctl_thresh_thread(void *arg) 14021 { 14022 struct ctl_softc *softc = (struct ctl_softc *)arg; 14023 struct ctl_lun *lun; 14024 struct ctl_be_lun *be_lun; 14025 struct scsi_da_rw_recovery_page *rwpage; 14026 struct ctl_logical_block_provisioning_page *page; 14027 const char *attr; 14028 uint64_t thres, val; 14029 int i, e; 14030 14031 CTL_DEBUG_PRINT(("ctl_thresh_thread starting\n")); 14032 14033 for (;;) { 14034 mtx_lock(&softc->ctl_lock); 14035 STAILQ_FOREACH(lun, &softc->lun_list, links) { 14036 be_lun = lun->be_lun; 14037 if ((lun->flags & CTL_LUN_DISABLED) || 14038 (lun->flags & CTL_LUN_OFFLINE) || 14039 lun->backend->lun_attr == NULL) 14040 continue; 14041 rwpage = &lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT]; 14042 if ((rwpage->byte8 & SMS_RWER_LBPERE) == 0) 14043 continue; 14044 e = 0; 14045 page = &lun->mode_pages.lbp_page[CTL_PAGE_CURRENT]; 14046 for (i = 0; i < CTL_NUM_LBP_THRESH; i++) { 14047 if ((page->descr[i].flags & SLBPPD_ENABLED) == 0) 14048 continue; 14049 thres = scsi_4btoul(page->descr[i].count); 14050 thres <<= CTL_LBP_EXPONENT; 14051 switch (page->descr[i].resource) { 14052 case 0x01: 14053 attr = "blocksavail"; 14054 break; 14055 case 0x02: 14056 attr = "blocksused"; 14057 break; 14058 case 0xf1: 14059 attr = "poolblocksavail"; 14060 break; 14061 case 0xf2: 14062 attr = "poolblocksused"; 14063 break; 14064 default: 14065 continue; 14066 } 14067 mtx_unlock(&softc->ctl_lock); // XXX 14068 val = lun->backend->lun_attr( 14069 lun->be_lun->be_lun, attr); 14070 mtx_lock(&softc->ctl_lock); 14071 if (val == UINT64_MAX) 14072 continue; 14073 if ((page->descr[i].flags & SLBPPD_ARMING_MASK) 14074 == SLBPPD_ARMING_INC) 14075 e |= (val >= thres); 14076 else 14077 e |= (val <= thres); 14078 } 14079 mtx_lock(&lun->lun_lock); 14080 if (e) { 14081 if (lun->lasttpt == 0 || 14082 time_uptime - lun->lasttpt >= CTL_LBP_UA_PERIOD) { 14083 lun->lasttpt = time_uptime; 14084 ctl_est_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 14085 } 14086 } else { 14087 lun->lasttpt = 0; 14088 ctl_clr_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 14089 } 14090 mtx_unlock(&lun->lun_lock); 14091 } 14092 mtx_unlock(&softc->ctl_lock); 14093 pause("-", CTL_LBP_PERIOD * hz); 14094 } 14095 } 14096 14097 static void 14098 ctl_enqueue_incoming(union ctl_io *io) 14099 { 14100 struct ctl_softc *softc = control_softc; 14101 struct ctl_thread *thr; 14102 u_int idx; 14103 14104 idx = (io->io_hdr.nexus.targ_port * 127 + 14105 io->io_hdr.nexus.initid.id) % worker_threads; 14106 thr = &softc->threads[idx]; 14107 mtx_lock(&thr->queue_lock); 14108 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 14109 mtx_unlock(&thr->queue_lock); 14110 wakeup(thr); 14111 } 14112 14113 static void 14114 ctl_enqueue_rtr(union ctl_io *io) 14115 { 14116 struct ctl_softc *softc = control_softc; 14117 struct ctl_thread *thr; 14118 14119 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14120 mtx_lock(&thr->queue_lock); 14121 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 14122 mtx_unlock(&thr->queue_lock); 14123 wakeup(thr); 14124 } 14125 14126 static void 14127 ctl_enqueue_done(union ctl_io *io) 14128 { 14129 struct ctl_softc *softc = control_softc; 14130 struct ctl_thread *thr; 14131 14132 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14133 mtx_lock(&thr->queue_lock); 14134 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 14135 mtx_unlock(&thr->queue_lock); 14136 wakeup(thr); 14137 } 14138 14139 static void 14140 ctl_enqueue_isc(union ctl_io *io) 14141 { 14142 struct ctl_softc *softc = control_softc; 14143 struct ctl_thread *thr; 14144 14145 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14146 mtx_lock(&thr->queue_lock); 14147 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 14148 mtx_unlock(&thr->queue_lock); 14149 wakeup(thr); 14150 } 14151 14152 /* Initialization and failover */ 14153 14154 void 14155 ctl_init_isc_msg(void) 14156 { 14157 printf("CTL: Still calling this thing\n"); 14158 } 14159 14160 /* 14161 * Init component 14162 * Initializes component into configuration defined by bootMode 14163 * (see hasc-sv.c) 14164 * returns hasc_Status: 14165 * OK 14166 * ERROR - fatal error 14167 */ 14168 static ctl_ha_comp_status 14169 ctl_isc_init(struct ctl_ha_component *c) 14170 { 14171 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14172 14173 c->status = ret; 14174 return ret; 14175 } 14176 14177 /* Start component 14178 * Starts component in state requested. If component starts successfully, 14179 * it must set its own state to the requestrd state 14180 * When requested state is HASC_STATE_HA, the component may refine it 14181 * by adding _SLAVE or _MASTER flags. 14182 * Currently allowed state transitions are: 14183 * UNKNOWN->HA - initial startup 14184 * UNKNOWN->SINGLE - initial startup when no parter detected 14185 * HA->SINGLE - failover 14186 * returns ctl_ha_comp_status: 14187 * OK - component successfully started in requested state 14188 * FAILED - could not start the requested state, failover may 14189 * be possible 14190 * ERROR - fatal error detected, no future startup possible 14191 */ 14192 static ctl_ha_comp_status 14193 ctl_isc_start(struct ctl_ha_component *c, ctl_ha_state state) 14194 { 14195 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14196 14197 printf("%s: go\n", __func__); 14198 14199 // UNKNOWN->HA or UNKNOWN->SINGLE (bootstrap) 14200 if (c->state == CTL_HA_STATE_UNKNOWN ) { 14201 control_softc->is_single = 0; 14202 if (ctl_ha_msg_create(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 14203 != CTL_HA_STATUS_SUCCESS) { 14204 printf("ctl_isc_start: ctl_ha_msg_create failed.\n"); 14205 ret = CTL_HA_COMP_STATUS_ERROR; 14206 } 14207 } else if (CTL_HA_STATE_IS_HA(c->state) 14208 && CTL_HA_STATE_IS_SINGLE(state)){ 14209 // HA->SINGLE transition 14210 ctl_failover(); 14211 control_softc->is_single = 1; 14212 } else { 14213 printf("ctl_isc_start:Invalid state transition %X->%X\n", 14214 c->state, state); 14215 ret = CTL_HA_COMP_STATUS_ERROR; 14216 } 14217 if (CTL_HA_STATE_IS_SINGLE(state)) 14218 control_softc->is_single = 1; 14219 14220 c->state = state; 14221 c->status = ret; 14222 return ret; 14223 } 14224 14225 /* 14226 * Quiesce component 14227 * The component must clear any error conditions (set status to OK) and 14228 * prepare itself to another Start call 14229 * returns ctl_ha_comp_status: 14230 * OK 14231 * ERROR 14232 */ 14233 static ctl_ha_comp_status 14234 ctl_isc_quiesce(struct ctl_ha_component *c) 14235 { 14236 int ret = CTL_HA_COMP_STATUS_OK; 14237 14238 ctl_pause_rtr = 1; 14239 c->status = ret; 14240 return ret; 14241 } 14242 14243 struct ctl_ha_component ctl_ha_component_ctlisc = 14244 { 14245 .name = "CTL ISC", 14246 .state = CTL_HA_STATE_UNKNOWN, 14247 .init = ctl_isc_init, 14248 .start = ctl_isc_start, 14249 .quiesce = ctl_isc_quiesce 14250 }; 14251 14252 /* 14253 * vim: ts=8 14254 */ 14255