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/kernel.h> 50 #include <sys/types.h> 51 #include <sys/kthread.h> 52 #include <sys/bio.h> 53 #include <sys/fcntl.h> 54 #include <sys/lock.h> 55 #include <sys/module.h> 56 #include <sys/mutex.h> 57 #include <sys/condvar.h> 58 #include <sys/malloc.h> 59 #include <sys/conf.h> 60 #include <sys/ioccom.h> 61 #include <sys/queue.h> 62 #include <sys/sbuf.h> 63 #include <sys/smp.h> 64 #include <sys/endian.h> 65 #include <sys/sysctl.h> 66 67 #include <cam/cam.h> 68 #include <cam/scsi/scsi_all.h> 69 #include <cam/scsi/scsi_da.h> 70 #include <cam/ctl/ctl_io.h> 71 #include <cam/ctl/ctl.h> 72 #include <cam/ctl/ctl_frontend.h> 73 #include <cam/ctl/ctl_frontend_internal.h> 74 #include <cam/ctl/ctl_util.h> 75 #include <cam/ctl/ctl_backend.h> 76 #include <cam/ctl/ctl_ioctl.h> 77 #include <cam/ctl/ctl_ha.h> 78 #include <cam/ctl/ctl_private.h> 79 #include <cam/ctl/ctl_debug.h> 80 #include <cam/ctl/ctl_scsi_all.h> 81 #include <cam/ctl/ctl_error.h> 82 83 struct ctl_softc *control_softc = NULL; 84 85 /* 86 * Size and alignment macros needed for Copan-specific HA hardware. These 87 * can go away when the HA code is re-written, and uses busdma for any 88 * hardware. 89 */ 90 #define CTL_ALIGN_8B(target, source, type) \ 91 if (((uint32_t)source & 0x7) != 0) \ 92 target = (type)(source + (0x8 - ((uint32_t)source & 0x7)));\ 93 else \ 94 target = (type)source; 95 96 #define CTL_SIZE_8B(target, size) \ 97 if ((size & 0x7) != 0) \ 98 target = size + (0x8 - (size & 0x7)); \ 99 else \ 100 target = size; 101 102 #define CTL_ALIGN_8B_MARGIN 16 103 104 /* 105 * Template mode pages. 106 */ 107 108 /* 109 * Note that these are default values only. The actual values will be 110 * filled in when the user does a mode sense. 111 */ 112 static struct copan_power_subpage power_page_default = { 113 /*page_code*/ PWR_PAGE_CODE | SMPH_SPF, 114 /*subpage*/ PWR_SUBPAGE_CODE, 115 /*page_length*/ {(sizeof(struct copan_power_subpage) - 4) & 0xff00, 116 (sizeof(struct copan_power_subpage) - 4) & 0x00ff}, 117 /*page_version*/ PWR_VERSION, 118 /* total_luns */ 26, 119 /* max_active_luns*/ PWR_DFLT_MAX_LUNS, 120 /*reserved*/ {0, 0, 0, 0, 0, 0, 0, 0, 0, 121 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 122 0, 0, 0, 0, 0, 0} 123 }; 124 125 static struct copan_power_subpage power_page_changeable = { 126 /*page_code*/ PWR_PAGE_CODE | SMPH_SPF, 127 /*subpage*/ PWR_SUBPAGE_CODE, 128 /*page_length*/ {(sizeof(struct copan_power_subpage) - 4) & 0xff00, 129 (sizeof(struct copan_power_subpage) - 4) & 0x00ff}, 130 /*page_version*/ 0, 131 /* total_luns */ 0, 132 /* max_active_luns*/ 0, 133 /*reserved*/ {0, 0, 0, 0, 0, 0, 0, 0, 0, 134 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 135 0, 0, 0, 0, 0, 0} 136 }; 137 138 static struct copan_aps_subpage aps_page_default = { 139 APS_PAGE_CODE | SMPH_SPF, //page_code 140 APS_SUBPAGE_CODE, //subpage 141 {(sizeof(struct copan_aps_subpage) - 4) & 0xff00, 142 (sizeof(struct copan_aps_subpage) - 4) & 0x00ff}, //page_length 143 APS_VERSION, //page_version 144 0, //lock_active 145 {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 146 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 147 0, 0, 0, 0, 0} //reserved 148 }; 149 150 static struct copan_aps_subpage aps_page_changeable = { 151 APS_PAGE_CODE | SMPH_SPF, //page_code 152 APS_SUBPAGE_CODE, //subpage 153 {(sizeof(struct copan_aps_subpage) - 4) & 0xff00, 154 (sizeof(struct copan_aps_subpage) - 4) & 0x00ff}, //page_length 155 0, //page_version 156 0, //lock_active 157 {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 158 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 159 0, 0, 0, 0, 0} //reserved 160 }; 161 162 static struct copan_debugconf_subpage debugconf_page_default = { 163 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 164 DBGCNF_SUBPAGE_CODE, /* subpage */ 165 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 166 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 167 DBGCNF_VERSION, /* page_version */ 168 {CTL_TIME_IO_DEFAULT_SECS>>8, 169 CTL_TIME_IO_DEFAULT_SECS>>0}, /* ctl_time_io_secs */ 170 }; 171 172 static struct copan_debugconf_subpage debugconf_page_changeable = { 173 DBGCNF_PAGE_CODE | SMPH_SPF, /* page_code */ 174 DBGCNF_SUBPAGE_CODE, /* subpage */ 175 {(sizeof(struct copan_debugconf_subpage) - 4) >> 8, 176 (sizeof(struct copan_debugconf_subpage) - 4) >> 0}, /* page_length */ 177 0, /* page_version */ 178 {0xff,0xff}, /* ctl_time_io_secs */ 179 }; 180 181 static struct scsi_format_page format_page_default = { 182 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 183 /*page_length*/sizeof(struct scsi_format_page) - 2, 184 /*tracks_per_zone*/ {0, 0}, 185 /*alt_sectors_per_zone*/ {0, 0}, 186 /*alt_tracks_per_zone*/ {0, 0}, 187 /*alt_tracks_per_lun*/ {0, 0}, 188 /*sectors_per_track*/ {(CTL_DEFAULT_SECTORS_PER_TRACK >> 8) & 0xff, 189 CTL_DEFAULT_SECTORS_PER_TRACK & 0xff}, 190 /*bytes_per_sector*/ {0, 0}, 191 /*interleave*/ {0, 0}, 192 /*track_skew*/ {0, 0}, 193 /*cylinder_skew*/ {0, 0}, 194 /*flags*/ SFP_HSEC, 195 /*reserved*/ {0, 0, 0} 196 }; 197 198 static struct scsi_format_page format_page_changeable = { 199 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 200 /*page_length*/sizeof(struct scsi_format_page) - 2, 201 /*tracks_per_zone*/ {0, 0}, 202 /*alt_sectors_per_zone*/ {0, 0}, 203 /*alt_tracks_per_zone*/ {0, 0}, 204 /*alt_tracks_per_lun*/ {0, 0}, 205 /*sectors_per_track*/ {0, 0}, 206 /*bytes_per_sector*/ {0, 0}, 207 /*interleave*/ {0, 0}, 208 /*track_skew*/ {0, 0}, 209 /*cylinder_skew*/ {0, 0}, 210 /*flags*/ 0, 211 /*reserved*/ {0, 0, 0} 212 }; 213 214 static struct scsi_rigid_disk_page rigid_disk_page_default = { 215 /*page_code*/SMS_RIGID_DISK_PAGE, 216 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 217 /*cylinders*/ {0, 0, 0}, 218 /*heads*/ CTL_DEFAULT_HEADS, 219 /*start_write_precomp*/ {0, 0, 0}, 220 /*start_reduced_current*/ {0, 0, 0}, 221 /*step_rate*/ {0, 0}, 222 /*landing_zone_cylinder*/ {0, 0, 0}, 223 /*rpl*/ SRDP_RPL_DISABLED, 224 /*rotational_offset*/ 0, 225 /*reserved1*/ 0, 226 /*rotation_rate*/ {(CTL_DEFAULT_ROTATION_RATE >> 8) & 0xff, 227 CTL_DEFAULT_ROTATION_RATE & 0xff}, 228 /*reserved2*/ {0, 0} 229 }; 230 231 static struct scsi_rigid_disk_page rigid_disk_page_changeable = { 232 /*page_code*/SMS_RIGID_DISK_PAGE, 233 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 234 /*cylinders*/ {0, 0, 0}, 235 /*heads*/ 0, 236 /*start_write_precomp*/ {0, 0, 0}, 237 /*start_reduced_current*/ {0, 0, 0}, 238 /*step_rate*/ {0, 0}, 239 /*landing_zone_cylinder*/ {0, 0, 0}, 240 /*rpl*/ 0, 241 /*rotational_offset*/ 0, 242 /*reserved1*/ 0, 243 /*rotation_rate*/ {0, 0}, 244 /*reserved2*/ {0, 0} 245 }; 246 247 static struct scsi_caching_page caching_page_default = { 248 /*page_code*/SMS_CACHING_PAGE, 249 /*page_length*/sizeof(struct scsi_caching_page) - 2, 250 /*flags1*/ SCP_DISC | SCP_WCE, 251 /*ret_priority*/ 0, 252 /*disable_pf_transfer_len*/ {0xff, 0xff}, 253 /*min_prefetch*/ {0, 0}, 254 /*max_prefetch*/ {0xff, 0xff}, 255 /*max_pf_ceiling*/ {0xff, 0xff}, 256 /*flags2*/ 0, 257 /*cache_segments*/ 0, 258 /*cache_seg_size*/ {0, 0}, 259 /*reserved*/ 0, 260 /*non_cache_seg_size*/ {0, 0, 0} 261 }; 262 263 static struct scsi_caching_page caching_page_changeable = { 264 /*page_code*/SMS_CACHING_PAGE, 265 /*page_length*/sizeof(struct scsi_caching_page) - 2, 266 /*flags1*/ 0, 267 /*ret_priority*/ 0, 268 /*disable_pf_transfer_len*/ {0, 0}, 269 /*min_prefetch*/ {0, 0}, 270 /*max_prefetch*/ {0, 0}, 271 /*max_pf_ceiling*/ {0, 0}, 272 /*flags2*/ 0, 273 /*cache_segments*/ 0, 274 /*cache_seg_size*/ {0, 0}, 275 /*reserved*/ 0, 276 /*non_cache_seg_size*/ {0, 0, 0} 277 }; 278 279 static struct scsi_control_page control_page_default = { 280 /*page_code*/SMS_CONTROL_MODE_PAGE, 281 /*page_length*/sizeof(struct scsi_control_page) - 2, 282 /*rlec*/0, 283 /*queue_flags*/0, 284 /*eca_and_aen*/0, 285 /*flags4*/SCP_TAS, 286 /*aen_holdoff_period*/{0, 0}, 287 /*busy_timeout_period*/{0, 0}, 288 /*extended_selftest_completion_time*/{0, 0} 289 }; 290 291 static struct scsi_control_page control_page_changeable = { 292 /*page_code*/SMS_CONTROL_MODE_PAGE, 293 /*page_length*/sizeof(struct scsi_control_page) - 2, 294 /*rlec*/SCP_DSENSE, 295 /*queue_flags*/0, 296 /*eca_and_aen*/0, 297 /*flags4*/0, 298 /*aen_holdoff_period*/{0, 0}, 299 /*busy_timeout_period*/{0, 0}, 300 /*extended_selftest_completion_time*/{0, 0} 301 }; 302 303 304 /* 305 * XXX KDM move these into the softc. 306 */ 307 static int rcv_sync_msg; 308 static int persis_offset; 309 static uint8_t ctl_pause_rtr; 310 static int ctl_is_single = 1; 311 static int index_to_aps_page; 312 313 SYSCTL_NODE(_kern_cam, OID_AUTO, ctl, CTLFLAG_RD, 0, "CAM Target Layer"); 314 static int worker_threads = -1; 315 SYSCTL_INT(_kern_cam_ctl, OID_AUTO, worker_threads, CTLFLAG_RDTUN, 316 &worker_threads, 1, "Number of worker threads"); 317 static int verbose = 0; 318 SYSCTL_INT(_kern_cam_ctl, OID_AUTO, verbose, CTLFLAG_RWTUN, 319 &verbose, 0, "Show SCSI errors returned to initiator"); 320 321 /* 322 * Supported pages (0x00), Serial number (0x80), Device ID (0x83), 323 * SCSI Ports (0x88), Third-party Copy (0x8F), Block limits (0xB0) and 324 * Logical Block Provisioning (0xB2) 325 */ 326 #define SCSI_EVPD_NUM_SUPPORTED_PAGES 7 327 328 static void ctl_isc_event_handler(ctl_ha_channel chanel, ctl_ha_event event, 329 int param); 330 static void ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest); 331 static int ctl_init(void); 332 void ctl_shutdown(void); 333 static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td); 334 static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td); 335 static void ctl_ioctl_online(void *arg); 336 static void ctl_ioctl_offline(void *arg); 337 static int ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id); 338 static int ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id); 339 static int ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio); 340 static int ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio); 341 static int ctl_ioctl_submit_wait(union ctl_io *io); 342 static void ctl_ioctl_datamove(union ctl_io *io); 343 static void ctl_ioctl_done(union ctl_io *io); 344 static void ctl_ioctl_hard_startstop_callback(void *arg, 345 struct cfi_metatask *metatask); 346 static void ctl_ioctl_bbrread_callback(void *arg,struct cfi_metatask *metatask); 347 static int ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 348 struct ctl_ooa *ooa_hdr, 349 struct ctl_ooa_entry *kern_entries); 350 static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 351 struct thread *td); 352 static uint32_t ctl_map_lun(int port_num, uint32_t lun); 353 static uint32_t ctl_map_lun_back(int port_num, uint32_t lun); 354 #ifdef unused 355 static union ctl_io *ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, 356 uint32_t targ_target, uint32_t targ_lun, 357 int can_wait); 358 static void ctl_kfree_io(union ctl_io *io); 359 #endif /* unused */ 360 static int ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 361 struct ctl_be_lun *be_lun, struct ctl_id target_id); 362 static int ctl_free_lun(struct ctl_lun *lun); 363 static void ctl_create_lun(struct ctl_be_lun *be_lun); 364 /** 365 static void ctl_failover_change_pages(struct ctl_softc *softc, 366 struct ctl_scsiio *ctsio, int master); 367 **/ 368 369 static int ctl_do_mode_select(union ctl_io *io); 370 static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, 371 uint64_t res_key, uint64_t sa_res_key, 372 uint8_t type, uint32_t residx, 373 struct ctl_scsiio *ctsio, 374 struct scsi_per_res_out *cdb, 375 struct scsi_per_res_out_parms* param); 376 static void ctl_pro_preempt_other(struct ctl_lun *lun, 377 union ctl_ha_msg *msg); 378 static void ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg); 379 static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 380 static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 381 static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 382 static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, 383 int alloc_len); 384 static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 385 int alloc_len); 386 static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 387 static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 388 static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 389 static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint32_t *len); 390 static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2); 391 static ctl_action ctl_check_for_blockage(union ctl_io *pending_io, 392 union ctl_io *ooa_io); 393 static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 394 union ctl_io *starting_io); 395 static int ctl_check_blocked(struct ctl_lun *lun); 396 static int ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, 397 struct ctl_lun *lun, 398 const struct ctl_cmd_entry *entry, 399 struct ctl_scsiio *ctsio); 400 //static int ctl_check_rtr(union ctl_io *pending_io, struct ctl_softc *softc); 401 static void ctl_failover(void); 402 static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 403 struct ctl_scsiio *ctsio); 404 static int ctl_scsiio(struct ctl_scsiio *ctsio); 405 406 static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 407 static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 408 ctl_ua_type ua_type); 409 static int ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, 410 ctl_ua_type ua_type); 411 static int ctl_abort_task(union ctl_io *io); 412 static int ctl_abort_task_set(union ctl_io *io); 413 static int ctl_i_t_nexus_reset(union ctl_io *io); 414 static void ctl_run_task(union ctl_io *io); 415 #ifdef CTL_IO_DELAY 416 static void ctl_datamove_timer_wakeup(void *arg); 417 static void ctl_done_timer_wakeup(void *arg); 418 #endif /* CTL_IO_DELAY */ 419 420 static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 421 static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 422 static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 423 static void ctl_datamove_remote_write(union ctl_io *io); 424 static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 425 static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 426 static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 427 static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 428 ctl_ha_dt_cb callback); 429 static void ctl_datamove_remote_read(union ctl_io *io); 430 static void ctl_datamove_remote(union ctl_io *io); 431 static int ctl_process_done(union ctl_io *io); 432 static void ctl_lun_thread(void *arg); 433 static void ctl_work_thread(void *arg); 434 static void ctl_enqueue_incoming(union ctl_io *io); 435 static void ctl_enqueue_rtr(union ctl_io *io); 436 static void ctl_enqueue_done(union ctl_io *io); 437 static void ctl_enqueue_isc(union ctl_io *io); 438 static const struct ctl_cmd_entry * 439 ctl_get_cmd_entry(struct ctl_scsiio *ctsio); 440 static const struct ctl_cmd_entry * 441 ctl_validate_command(struct ctl_scsiio *ctsio); 442 static int ctl_cmd_applicable(uint8_t lun_type, 443 const struct ctl_cmd_entry *entry); 444 445 /* 446 * Load the serialization table. This isn't very pretty, but is probably 447 * the easiest way to do it. 448 */ 449 #include "ctl_ser_table.c" 450 451 /* 452 * We only need to define open, close and ioctl routines for this driver. 453 */ 454 static struct cdevsw ctl_cdevsw = { 455 .d_version = D_VERSION, 456 .d_flags = 0, 457 .d_open = ctl_open, 458 .d_close = ctl_close, 459 .d_ioctl = ctl_ioctl, 460 .d_name = "ctl", 461 }; 462 463 464 MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 465 MALLOC_DEFINE(M_CTLIO, "ctlio", "Memory used for CTL requests"); 466 467 static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 468 469 static moduledata_t ctl_moduledata = { 470 "ctl", 471 ctl_module_event_handler, 472 NULL 473 }; 474 475 DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 476 MODULE_VERSION(ctl, 1); 477 478 static struct ctl_frontend ioctl_frontend = 479 { 480 .name = "ioctl", 481 }; 482 483 static void 484 ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 485 union ctl_ha_msg *msg_info) 486 { 487 struct ctl_scsiio *ctsio; 488 489 if (msg_info->hdr.original_sc == NULL) { 490 printf("%s: original_sc == NULL!\n", __func__); 491 /* XXX KDM now what? */ 492 return; 493 } 494 495 ctsio = &msg_info->hdr.original_sc->scsiio; 496 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 497 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 498 ctsio->io_hdr.status = msg_info->hdr.status; 499 ctsio->scsi_status = msg_info->scsi.scsi_status; 500 ctsio->sense_len = msg_info->scsi.sense_len; 501 ctsio->sense_residual = msg_info->scsi.sense_residual; 502 ctsio->residual = msg_info->scsi.residual; 503 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 504 sizeof(ctsio->sense_data)); 505 memcpy(&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 506 &msg_info->scsi.lbalen, sizeof(msg_info->scsi.lbalen)); 507 ctl_enqueue_isc((union ctl_io *)ctsio); 508 } 509 510 static void 511 ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 512 union ctl_ha_msg *msg_info) 513 { 514 struct ctl_scsiio *ctsio; 515 516 if (msg_info->hdr.serializing_sc == NULL) { 517 printf("%s: serializing_sc == NULL!\n", __func__); 518 /* XXX KDM now what? */ 519 return; 520 } 521 522 ctsio = &msg_info->hdr.serializing_sc->scsiio; 523 #if 0 524 /* 525 * Attempt to catch the situation where an I/O has 526 * been freed, and we're using it again. 527 */ 528 if (ctsio->io_hdr.io_type == 0xff) { 529 union ctl_io *tmp_io; 530 tmp_io = (union ctl_io *)ctsio; 531 printf("%s: %p use after free!\n", __func__, 532 ctsio); 533 printf("%s: type %d msg %d cdb %x iptl: " 534 "%d:%d:%d:%d tag 0x%04x " 535 "flag %#x status %x\n", 536 __func__, 537 tmp_io->io_hdr.io_type, 538 tmp_io->io_hdr.msg_type, 539 tmp_io->scsiio.cdb[0], 540 tmp_io->io_hdr.nexus.initid.id, 541 tmp_io->io_hdr.nexus.targ_port, 542 tmp_io->io_hdr.nexus.targ_target.id, 543 tmp_io->io_hdr.nexus.targ_lun, 544 (tmp_io->io_hdr.io_type == 545 CTL_IO_TASK) ? 546 tmp_io->taskio.tag_num : 547 tmp_io->scsiio.tag_num, 548 tmp_io->io_hdr.flags, 549 tmp_io->io_hdr.status); 550 } 551 #endif 552 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 553 ctl_enqueue_isc((union ctl_io *)ctsio); 554 } 555 556 /* 557 * ISC (Inter Shelf Communication) event handler. Events from the HA 558 * subsystem come in here. 559 */ 560 static void 561 ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 562 { 563 struct ctl_softc *ctl_softc; 564 union ctl_io *io; 565 struct ctl_prio *presio; 566 ctl_ha_status isc_status; 567 568 ctl_softc = control_softc; 569 io = NULL; 570 571 572 #if 0 573 printf("CTL: Isc Msg event %d\n", event); 574 #endif 575 if (event == CTL_HA_EVT_MSG_RECV) { 576 union ctl_ha_msg msg_info; 577 578 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 579 sizeof(msg_info), /*wait*/ 0); 580 #if 0 581 printf("CTL: msg_type %d\n", msg_info.msg_type); 582 #endif 583 if (isc_status != 0) { 584 printf("Error receiving message, status = %d\n", 585 isc_status); 586 return; 587 } 588 589 switch (msg_info.hdr.msg_type) { 590 case CTL_MSG_SERIALIZE: 591 #if 0 592 printf("Serialize\n"); 593 #endif 594 io = ctl_alloc_io((void *)ctl_softc->othersc_pool); 595 if (io == NULL) { 596 printf("ctl_isc_event_handler: can't allocate " 597 "ctl_io!\n"); 598 /* Bad Juju */ 599 /* Need to set busy and send msg back */ 600 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 601 msg_info.hdr.status = CTL_SCSI_ERROR; 602 msg_info.scsi.scsi_status = SCSI_STATUS_BUSY; 603 msg_info.scsi.sense_len = 0; 604 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 605 sizeof(msg_info), 0) > CTL_HA_STATUS_SUCCESS){ 606 } 607 goto bailout; 608 } 609 ctl_zero_io(io); 610 // populate ctsio from msg_info 611 io->io_hdr.io_type = CTL_IO_SCSI; 612 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 613 io->io_hdr.original_sc = msg_info.hdr.original_sc; 614 #if 0 615 printf("pOrig %x\n", (int)msg_info.original_sc); 616 #endif 617 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 618 CTL_FLAG_IO_ACTIVE; 619 /* 620 * If we're in serialization-only mode, we don't 621 * want to go through full done processing. Thus 622 * the COPY flag. 623 * 624 * XXX KDM add another flag that is more specific. 625 */ 626 if (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY) 627 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 628 io->io_hdr.nexus = msg_info.hdr.nexus; 629 #if 0 630 printf("targ %d, port %d, iid %d, lun %d\n", 631 io->io_hdr.nexus.targ_target.id, 632 io->io_hdr.nexus.targ_port, 633 io->io_hdr.nexus.initid.id, 634 io->io_hdr.nexus.targ_lun); 635 #endif 636 io->scsiio.tag_num = msg_info.scsi.tag_num; 637 io->scsiio.tag_type = msg_info.scsi.tag_type; 638 memcpy(io->scsiio.cdb, msg_info.scsi.cdb, 639 CTL_MAX_CDBLEN); 640 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 641 const struct ctl_cmd_entry *entry; 642 643 entry = ctl_get_cmd_entry(&io->scsiio); 644 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 645 io->io_hdr.flags |= 646 entry->flags & CTL_FLAG_DATA_MASK; 647 } 648 ctl_enqueue_isc(io); 649 break; 650 651 /* Performed on the Originating SC, XFER mode only */ 652 case CTL_MSG_DATAMOVE: { 653 struct ctl_sg_entry *sgl; 654 int i, j; 655 656 io = msg_info.hdr.original_sc; 657 if (io == NULL) { 658 printf("%s: original_sc == NULL!\n", __func__); 659 /* XXX KDM do something here */ 660 break; 661 } 662 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 663 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 664 /* 665 * Keep track of this, we need to send it back over 666 * when the datamove is complete. 667 */ 668 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 669 670 if (msg_info.dt.sg_sequence == 0) { 671 /* 672 * XXX KDM we use the preallocated S/G list 673 * here, but we'll need to change this to 674 * dynamic allocation if we need larger S/G 675 * lists. 676 */ 677 if (msg_info.dt.kern_sg_entries > 678 sizeof(io->io_hdr.remote_sglist) / 679 sizeof(io->io_hdr.remote_sglist[0])) { 680 printf("%s: number of S/G entries " 681 "needed %u > allocated num %zd\n", 682 __func__, 683 msg_info.dt.kern_sg_entries, 684 sizeof(io->io_hdr.remote_sglist)/ 685 sizeof(io->io_hdr.remote_sglist[0])); 686 687 /* 688 * XXX KDM send a message back to 689 * the other side to shut down the 690 * DMA. The error will come back 691 * through via the normal channel. 692 */ 693 break; 694 } 695 sgl = io->io_hdr.remote_sglist; 696 memset(sgl, 0, 697 sizeof(io->io_hdr.remote_sglist)); 698 699 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 700 701 io->scsiio.kern_sg_entries = 702 msg_info.dt.kern_sg_entries; 703 io->scsiio.rem_sg_entries = 704 msg_info.dt.kern_sg_entries; 705 io->scsiio.kern_data_len = 706 msg_info.dt.kern_data_len; 707 io->scsiio.kern_total_len = 708 msg_info.dt.kern_total_len; 709 io->scsiio.kern_data_resid = 710 msg_info.dt.kern_data_resid; 711 io->scsiio.kern_rel_offset = 712 msg_info.dt.kern_rel_offset; 713 /* 714 * Clear out per-DMA flags. 715 */ 716 io->io_hdr.flags &= ~CTL_FLAG_RDMA_MASK; 717 /* 718 * Add per-DMA flags that are set for this 719 * particular DMA request. 720 */ 721 io->io_hdr.flags |= msg_info.dt.flags & 722 CTL_FLAG_RDMA_MASK; 723 } else 724 sgl = (struct ctl_sg_entry *) 725 io->scsiio.kern_data_ptr; 726 727 for (i = msg_info.dt.sent_sg_entries, j = 0; 728 i < (msg_info.dt.sent_sg_entries + 729 msg_info.dt.cur_sg_entries); i++, j++) { 730 sgl[i].addr = msg_info.dt.sg_list[j].addr; 731 sgl[i].len = msg_info.dt.sg_list[j].len; 732 733 #if 0 734 printf("%s: L: %p,%d -> %p,%d j=%d, i=%d\n", 735 __func__, 736 msg_info.dt.sg_list[j].addr, 737 msg_info.dt.sg_list[j].len, 738 sgl[i].addr, sgl[i].len, j, i); 739 #endif 740 } 741 #if 0 742 memcpy(&sgl[msg_info.dt.sent_sg_entries], 743 msg_info.dt.sg_list, 744 sizeof(*sgl) * msg_info.dt.cur_sg_entries); 745 #endif 746 747 /* 748 * If this is the last piece of the I/O, we've got 749 * the full S/G list. Queue processing in the thread. 750 * Otherwise wait for the next piece. 751 */ 752 if (msg_info.dt.sg_last != 0) 753 ctl_enqueue_isc(io); 754 break; 755 } 756 /* Performed on the Serializing (primary) SC, XFER mode only */ 757 case CTL_MSG_DATAMOVE_DONE: { 758 if (msg_info.hdr.serializing_sc == NULL) { 759 printf("%s: serializing_sc == NULL!\n", 760 __func__); 761 /* XXX KDM now what? */ 762 break; 763 } 764 /* 765 * We grab the sense information here in case 766 * there was a failure, so we can return status 767 * back to the initiator. 768 */ 769 io = msg_info.hdr.serializing_sc; 770 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 771 io->io_hdr.status = msg_info.hdr.status; 772 io->scsiio.scsi_status = msg_info.scsi.scsi_status; 773 io->scsiio.sense_len = msg_info.scsi.sense_len; 774 io->scsiio.sense_residual =msg_info.scsi.sense_residual; 775 io->io_hdr.port_status = msg_info.scsi.fetd_status; 776 io->scsiio.residual = msg_info.scsi.residual; 777 memcpy(&io->scsiio.sense_data,&msg_info.scsi.sense_data, 778 sizeof(io->scsiio.sense_data)); 779 ctl_enqueue_isc(io); 780 break; 781 } 782 783 /* Preformed on Originating SC, SER_ONLY mode */ 784 case CTL_MSG_R2R: 785 io = msg_info.hdr.original_sc; 786 if (io == NULL) { 787 printf("%s: Major Bummer\n", __func__); 788 return; 789 } else { 790 #if 0 791 printf("pOrig %x\n",(int) ctsio); 792 #endif 793 } 794 io->io_hdr.msg_type = CTL_MSG_R2R; 795 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 796 ctl_enqueue_isc(io); 797 break; 798 799 /* 800 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 801 * mode. 802 * Performed on the Originating (i.e. secondary) SC in XFER 803 * mode 804 */ 805 case CTL_MSG_FINISH_IO: 806 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) 807 ctl_isc_handler_finish_xfer(ctl_softc, 808 &msg_info); 809 else 810 ctl_isc_handler_finish_ser_only(ctl_softc, 811 &msg_info); 812 break; 813 814 /* Preformed on Originating SC */ 815 case CTL_MSG_BAD_JUJU: 816 io = msg_info.hdr.original_sc; 817 if (io == NULL) { 818 printf("%s: Bad JUJU!, original_sc is NULL!\n", 819 __func__); 820 break; 821 } 822 ctl_copy_sense_data(&msg_info, io); 823 /* 824 * IO should have already been cleaned up on other 825 * SC so clear this flag so we won't send a message 826 * back to finish the IO there. 827 */ 828 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 829 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 830 831 /* io = msg_info.hdr.serializing_sc; */ 832 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 833 ctl_enqueue_isc(io); 834 break; 835 836 /* Handle resets sent from the other side */ 837 case CTL_MSG_MANAGE_TASKS: { 838 struct ctl_taskio *taskio; 839 taskio = (struct ctl_taskio *)ctl_alloc_io( 840 (void *)ctl_softc->othersc_pool); 841 if (taskio == NULL) { 842 printf("ctl_isc_event_handler: can't allocate " 843 "ctl_io!\n"); 844 /* Bad Juju */ 845 /* should I just call the proper reset func 846 here??? */ 847 goto bailout; 848 } 849 ctl_zero_io((union ctl_io *)taskio); 850 taskio->io_hdr.io_type = CTL_IO_TASK; 851 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 852 taskio->io_hdr.nexus = msg_info.hdr.nexus; 853 taskio->task_action = msg_info.task.task_action; 854 taskio->tag_num = msg_info.task.tag_num; 855 taskio->tag_type = msg_info.task.tag_type; 856 #ifdef CTL_TIME_IO 857 taskio->io_hdr.start_time = time_uptime; 858 getbintime(&taskio->io_hdr.start_bt); 859 #if 0 860 cs_prof_gettime(&taskio->io_hdr.start_ticks); 861 #endif 862 #endif /* CTL_TIME_IO */ 863 ctl_run_task((union ctl_io *)taskio); 864 break; 865 } 866 /* Persistent Reserve action which needs attention */ 867 case CTL_MSG_PERS_ACTION: 868 presio = (struct ctl_prio *)ctl_alloc_io( 869 (void *)ctl_softc->othersc_pool); 870 if (presio == NULL) { 871 printf("ctl_isc_event_handler: can't allocate " 872 "ctl_io!\n"); 873 /* Bad Juju */ 874 /* Need to set busy and send msg back */ 875 goto bailout; 876 } 877 ctl_zero_io((union ctl_io *)presio); 878 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 879 presio->pr_msg = msg_info.pr; 880 ctl_enqueue_isc((union ctl_io *)presio); 881 break; 882 case CTL_MSG_SYNC_FE: 883 rcv_sync_msg = 1; 884 break; 885 case CTL_MSG_APS_LOCK: { 886 // It's quicker to execute this then to 887 // queue it. 888 struct ctl_lun *lun; 889 struct ctl_page_index *page_index; 890 struct copan_aps_subpage *current_sp; 891 uint32_t targ_lun; 892 893 targ_lun = msg_info.hdr.nexus.targ_mapped_lun; 894 lun = ctl_softc->ctl_luns[targ_lun]; 895 mtx_lock(&lun->lun_lock); 896 page_index = &lun->mode_pages.index[index_to_aps_page]; 897 current_sp = (struct copan_aps_subpage *) 898 (page_index->page_data + 899 (page_index->page_len * CTL_PAGE_CURRENT)); 900 901 current_sp->lock_active = msg_info.aps.lock_flag; 902 mtx_unlock(&lun->lun_lock); 903 break; 904 } 905 default: 906 printf("How did I get here?\n"); 907 } 908 } else if (event == CTL_HA_EVT_MSG_SENT) { 909 if (param != CTL_HA_STATUS_SUCCESS) { 910 printf("Bad status from ctl_ha_msg_send status %d\n", 911 param); 912 } 913 return; 914 } else if (event == CTL_HA_EVT_DISCONNECT) { 915 printf("CTL: Got a disconnect from Isc\n"); 916 return; 917 } else { 918 printf("ctl_isc_event_handler: Unknown event %d\n", event); 919 return; 920 } 921 922 bailout: 923 return; 924 } 925 926 static void 927 ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 928 { 929 struct scsi_sense_data *sense; 930 931 sense = &dest->scsiio.sense_data; 932 bcopy(&src->scsi.sense_data, sense, sizeof(*sense)); 933 dest->scsiio.scsi_status = src->scsi.scsi_status; 934 dest->scsiio.sense_len = src->scsi.sense_len; 935 dest->io_hdr.status = src->hdr.status; 936 } 937 938 static int 939 ctl_init(void) 940 { 941 struct ctl_softc *softc; 942 struct ctl_io_pool *internal_pool, *emergency_pool, *other_pool; 943 struct ctl_port *port; 944 uint8_t sc_id =0; 945 int i, error, retval; 946 //int isc_retval; 947 948 retval = 0; 949 ctl_pause_rtr = 0; 950 rcv_sync_msg = 0; 951 952 control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 953 M_WAITOK | M_ZERO); 954 softc = control_softc; 955 956 softc->dev = make_dev(&ctl_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, 957 "cam/ctl"); 958 959 softc->dev->si_drv1 = softc; 960 961 /* 962 * By default, return a "bad LUN" peripheral qualifier for unknown 963 * LUNs. The user can override this default using the tunable or 964 * sysctl. See the comment in ctl_inquiry_std() for more details. 965 */ 966 softc->inquiry_pq_no_lun = 1; 967 TUNABLE_INT_FETCH("kern.cam.ctl.inquiry_pq_no_lun", 968 &softc->inquiry_pq_no_lun); 969 sysctl_ctx_init(&softc->sysctl_ctx); 970 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 971 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 972 CTLFLAG_RD, 0, "CAM Target Layer"); 973 974 if (softc->sysctl_tree == NULL) { 975 printf("%s: unable to allocate sysctl tree\n", __func__); 976 destroy_dev(softc->dev); 977 free(control_softc, M_DEVBUF); 978 control_softc = NULL; 979 return (ENOMEM); 980 } 981 982 SYSCTL_ADD_INT(&softc->sysctl_ctx, 983 SYSCTL_CHILDREN(softc->sysctl_tree), OID_AUTO, 984 "inquiry_pq_no_lun", CTLFLAG_RW, 985 &softc->inquiry_pq_no_lun, 0, 986 "Report no lun possible for invalid LUNs"); 987 988 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 989 mtx_init(&softc->pool_lock, "CTL pool mutex", NULL, MTX_DEF); 990 softc->open_count = 0; 991 992 /* 993 * Default to actually sending a SYNCHRONIZE CACHE command down to 994 * the drive. 995 */ 996 softc->flags = CTL_FLAG_REAL_SYNC; 997 998 /* 999 * In Copan's HA scheme, the "master" and "slave" roles are 1000 * figured out through the slot the controller is in. Although it 1001 * is an active/active system, someone has to be in charge. 1002 */ 1003 #ifdef NEEDTOPORT 1004 scmicro_rw(SCMICRO_GET_SHELF_ID, &sc_id); 1005 #endif 1006 1007 if (sc_id == 0) { 1008 softc->flags |= CTL_FLAG_MASTER_SHELF; 1009 persis_offset = 0; 1010 } else 1011 persis_offset = CTL_MAX_INITIATORS; 1012 1013 /* 1014 * XXX KDM need to figure out where we want to get our target ID 1015 * and WWID. Is it different on each port? 1016 */ 1017 softc->target.id = 0; 1018 softc->target.wwid[0] = 0x12345678; 1019 softc->target.wwid[1] = 0x87654321; 1020 STAILQ_INIT(&softc->lun_list); 1021 STAILQ_INIT(&softc->pending_lun_queue); 1022 STAILQ_INIT(&softc->fe_list); 1023 STAILQ_INIT(&softc->port_list); 1024 STAILQ_INIT(&softc->be_list); 1025 STAILQ_INIT(&softc->io_pools); 1026 ctl_tpc_init(softc); 1027 1028 if (ctl_pool_create(softc, CTL_POOL_INTERNAL, CTL_POOL_ENTRIES_INTERNAL, 1029 &internal_pool)!= 0){ 1030 printf("ctl: can't allocate %d entry internal pool, " 1031 "exiting\n", CTL_POOL_ENTRIES_INTERNAL); 1032 return (ENOMEM); 1033 } 1034 1035 if (ctl_pool_create(softc, CTL_POOL_EMERGENCY, 1036 CTL_POOL_ENTRIES_EMERGENCY, &emergency_pool) != 0) { 1037 printf("ctl: can't allocate %d entry emergency pool, " 1038 "exiting\n", CTL_POOL_ENTRIES_EMERGENCY); 1039 ctl_pool_free(internal_pool); 1040 return (ENOMEM); 1041 } 1042 1043 if (ctl_pool_create(softc, CTL_POOL_4OTHERSC, CTL_POOL_ENTRIES_OTHER_SC, 1044 &other_pool) != 0) 1045 { 1046 printf("ctl: can't allocate %d entry other SC pool, " 1047 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1048 ctl_pool_free(internal_pool); 1049 ctl_pool_free(emergency_pool); 1050 return (ENOMEM); 1051 } 1052 1053 softc->internal_pool = internal_pool; 1054 softc->emergency_pool = emergency_pool; 1055 softc->othersc_pool = other_pool; 1056 1057 if (worker_threads <= 0) 1058 worker_threads = max(1, mp_ncpus / 4); 1059 if (worker_threads > CTL_MAX_THREADS) 1060 worker_threads = CTL_MAX_THREADS; 1061 1062 for (i = 0; i < worker_threads; i++) { 1063 struct ctl_thread *thr = &softc->threads[i]; 1064 1065 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1066 thr->ctl_softc = softc; 1067 STAILQ_INIT(&thr->incoming_queue); 1068 STAILQ_INIT(&thr->rtr_queue); 1069 STAILQ_INIT(&thr->done_queue); 1070 STAILQ_INIT(&thr->isc_queue); 1071 1072 error = kproc_kthread_add(ctl_work_thread, thr, 1073 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1074 if (error != 0) { 1075 printf("error creating CTL work thread!\n"); 1076 ctl_pool_free(internal_pool); 1077 ctl_pool_free(emergency_pool); 1078 ctl_pool_free(other_pool); 1079 return (error); 1080 } 1081 } 1082 error = kproc_kthread_add(ctl_lun_thread, softc, 1083 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1084 if (error != 0) { 1085 printf("error creating CTL lun thread!\n"); 1086 ctl_pool_free(internal_pool); 1087 ctl_pool_free(emergency_pool); 1088 ctl_pool_free(other_pool); 1089 return (error); 1090 } 1091 if (bootverbose) 1092 printf("ctl: CAM Target Layer loaded\n"); 1093 1094 /* 1095 * Initialize the ioctl front end. 1096 */ 1097 ctl_frontend_register(&ioctl_frontend); 1098 port = &softc->ioctl_info.port; 1099 port->frontend = &ioctl_frontend; 1100 sprintf(softc->ioctl_info.port_name, "ioctl"); 1101 port->port_type = CTL_PORT_IOCTL; 1102 port->num_requested_ctl_io = 100; 1103 port->port_name = softc->ioctl_info.port_name; 1104 port->port_online = ctl_ioctl_online; 1105 port->port_offline = ctl_ioctl_offline; 1106 port->onoff_arg = &softc->ioctl_info; 1107 port->lun_enable = ctl_ioctl_lun_enable; 1108 port->lun_disable = ctl_ioctl_lun_disable; 1109 port->targ_lun_arg = &softc->ioctl_info; 1110 port->fe_datamove = ctl_ioctl_datamove; 1111 port->fe_done = ctl_ioctl_done; 1112 port->max_targets = 15; 1113 port->max_target_id = 15; 1114 1115 if (ctl_port_register(&softc->ioctl_info.port, 1116 (softc->flags & CTL_FLAG_MASTER_SHELF)) != 0) { 1117 printf("ctl: ioctl front end registration failed, will " 1118 "continue anyway\n"); 1119 } 1120 1121 #ifdef CTL_IO_DELAY 1122 if (sizeof(struct callout) > CTL_TIMER_BYTES) { 1123 printf("sizeof(struct callout) %zd > CTL_TIMER_BYTES %zd\n", 1124 sizeof(struct callout), CTL_TIMER_BYTES); 1125 return (EINVAL); 1126 } 1127 #endif /* CTL_IO_DELAY */ 1128 1129 return (0); 1130 } 1131 1132 void 1133 ctl_shutdown(void) 1134 { 1135 struct ctl_softc *softc; 1136 struct ctl_lun *lun, *next_lun; 1137 struct ctl_io_pool *pool; 1138 1139 softc = (struct ctl_softc *)control_softc; 1140 1141 if (ctl_port_deregister(&softc->ioctl_info.port) != 0) 1142 printf("ctl: ioctl front end deregistration failed\n"); 1143 1144 mtx_lock(&softc->ctl_lock); 1145 1146 /* 1147 * Free up each LUN. 1148 */ 1149 for (lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; lun = next_lun){ 1150 next_lun = STAILQ_NEXT(lun, links); 1151 ctl_free_lun(lun); 1152 } 1153 1154 mtx_unlock(&softc->ctl_lock); 1155 1156 ctl_frontend_deregister(&ioctl_frontend); 1157 1158 /* 1159 * This will rip the rug out from under any FETDs or anyone else 1160 * that has a pool allocated. Since we increment our module 1161 * refcount any time someone outside the main CTL module allocates 1162 * a pool, we shouldn't have any problems here. The user won't be 1163 * able to unload the CTL module until client modules have 1164 * successfully unloaded. 1165 */ 1166 while ((pool = STAILQ_FIRST(&softc->io_pools)) != NULL) 1167 ctl_pool_free(pool); 1168 1169 #if 0 1170 ctl_shutdown_thread(softc->work_thread); 1171 mtx_destroy(&softc->queue_lock); 1172 #endif 1173 1174 ctl_tpc_shutdown(softc); 1175 mtx_destroy(&softc->pool_lock); 1176 mtx_destroy(&softc->ctl_lock); 1177 1178 destroy_dev(softc->dev); 1179 1180 sysctl_ctx_free(&softc->sysctl_ctx); 1181 1182 free(control_softc, M_DEVBUF); 1183 control_softc = NULL; 1184 1185 if (bootverbose) 1186 printf("ctl: CAM Target Layer unloaded\n"); 1187 } 1188 1189 static int 1190 ctl_module_event_handler(module_t mod, int what, void *arg) 1191 { 1192 1193 switch (what) { 1194 case MOD_LOAD: 1195 return (ctl_init()); 1196 case MOD_UNLOAD: 1197 return (EBUSY); 1198 default: 1199 return (EOPNOTSUPP); 1200 } 1201 } 1202 1203 /* 1204 * XXX KDM should we do some access checks here? Bump a reference count to 1205 * prevent a CTL module from being unloaded while someone has it open? 1206 */ 1207 static int 1208 ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1209 { 1210 return (0); 1211 } 1212 1213 static int 1214 ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1215 { 1216 return (0); 1217 } 1218 1219 int 1220 ctl_port_enable(ctl_port_type port_type) 1221 { 1222 struct ctl_softc *softc; 1223 struct ctl_port *port; 1224 1225 if (ctl_is_single == 0) { 1226 union ctl_ha_msg msg_info; 1227 int isc_retval; 1228 1229 #if 0 1230 printf("%s: HA mode, synchronizing frontend enable\n", 1231 __func__); 1232 #endif 1233 msg_info.hdr.msg_type = CTL_MSG_SYNC_FE; 1234 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1235 sizeof(msg_info), 1 )) > CTL_HA_STATUS_SUCCESS) { 1236 printf("Sync msg send error retval %d\n", isc_retval); 1237 } 1238 if (!rcv_sync_msg) { 1239 isc_retval=ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 1240 sizeof(msg_info), 1); 1241 } 1242 #if 0 1243 printf("CTL:Frontend Enable\n"); 1244 } else { 1245 printf("%s: single mode, skipping frontend synchronization\n", 1246 __func__); 1247 #endif 1248 } 1249 1250 softc = control_softc; 1251 1252 STAILQ_FOREACH(port, &softc->port_list, links) { 1253 if (port_type & port->port_type) 1254 { 1255 #if 0 1256 printf("port %d\n", port->targ_port); 1257 #endif 1258 ctl_port_online(port); 1259 } 1260 } 1261 1262 return (0); 1263 } 1264 1265 int 1266 ctl_port_disable(ctl_port_type port_type) 1267 { 1268 struct ctl_softc *softc; 1269 struct ctl_port *port; 1270 1271 softc = control_softc; 1272 1273 STAILQ_FOREACH(port, &softc->port_list, links) { 1274 if (port_type & port->port_type) 1275 ctl_port_offline(port); 1276 } 1277 1278 return (0); 1279 } 1280 1281 /* 1282 * Returns 0 for success, 1 for failure. 1283 * Currently the only failure mode is if there aren't enough entries 1284 * allocated. So, in case of a failure, look at num_entries_dropped, 1285 * reallocate and try again. 1286 */ 1287 int 1288 ctl_port_list(struct ctl_port_entry *entries, int num_entries_alloced, 1289 int *num_entries_filled, int *num_entries_dropped, 1290 ctl_port_type port_type, int no_virtual) 1291 { 1292 struct ctl_softc *softc; 1293 struct ctl_port *port; 1294 int entries_dropped, entries_filled; 1295 int retval; 1296 int i; 1297 1298 softc = control_softc; 1299 1300 retval = 0; 1301 entries_filled = 0; 1302 entries_dropped = 0; 1303 1304 i = 0; 1305 mtx_lock(&softc->ctl_lock); 1306 STAILQ_FOREACH(port, &softc->port_list, links) { 1307 struct ctl_port_entry *entry; 1308 1309 if ((port->port_type & port_type) == 0) 1310 continue; 1311 1312 if ((no_virtual != 0) 1313 && (port->virtual_port != 0)) 1314 continue; 1315 1316 if (entries_filled >= num_entries_alloced) { 1317 entries_dropped++; 1318 continue; 1319 } 1320 entry = &entries[i]; 1321 1322 entry->port_type = port->port_type; 1323 strlcpy(entry->port_name, port->port_name, 1324 sizeof(entry->port_name)); 1325 entry->physical_port = port->physical_port; 1326 entry->virtual_port = port->virtual_port; 1327 entry->wwnn = port->wwnn; 1328 entry->wwpn = port->wwpn; 1329 1330 i++; 1331 entries_filled++; 1332 } 1333 1334 mtx_unlock(&softc->ctl_lock); 1335 1336 if (entries_dropped > 0) 1337 retval = 1; 1338 1339 *num_entries_dropped = entries_dropped; 1340 *num_entries_filled = entries_filled; 1341 1342 return (retval); 1343 } 1344 1345 static void 1346 ctl_ioctl_online(void *arg) 1347 { 1348 struct ctl_ioctl_info *ioctl_info; 1349 1350 ioctl_info = (struct ctl_ioctl_info *)arg; 1351 1352 ioctl_info->flags |= CTL_IOCTL_FLAG_ENABLED; 1353 } 1354 1355 static void 1356 ctl_ioctl_offline(void *arg) 1357 { 1358 struct ctl_ioctl_info *ioctl_info; 1359 1360 ioctl_info = (struct ctl_ioctl_info *)arg; 1361 1362 ioctl_info->flags &= ~CTL_IOCTL_FLAG_ENABLED; 1363 } 1364 1365 /* 1366 * Remove an initiator by port number and initiator ID. 1367 * Returns 0 for success, -1 for failure. 1368 */ 1369 int 1370 ctl_remove_initiator(struct ctl_port *port, int iid) 1371 { 1372 struct ctl_softc *softc = control_softc; 1373 1374 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1375 1376 if (iid > CTL_MAX_INIT_PER_PORT) { 1377 printf("%s: initiator ID %u > maximun %u!\n", 1378 __func__, iid, CTL_MAX_INIT_PER_PORT); 1379 return (-1); 1380 } 1381 1382 mtx_lock(&softc->ctl_lock); 1383 port->wwpn_iid[iid].in_use--; 1384 port->wwpn_iid[iid].last_use = time_uptime; 1385 mtx_unlock(&softc->ctl_lock); 1386 1387 return (0); 1388 } 1389 1390 /* 1391 * Add an initiator to the initiator map. 1392 * Returns iid for success, < 0 for failure. 1393 */ 1394 int 1395 ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 1396 { 1397 struct ctl_softc *softc = control_softc; 1398 time_t best_time; 1399 int i, best; 1400 1401 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1402 1403 if (iid >= CTL_MAX_INIT_PER_PORT) { 1404 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 1405 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 1406 free(name, M_CTL); 1407 return (-1); 1408 } 1409 1410 mtx_lock(&softc->ctl_lock); 1411 1412 if (iid < 0 && (wwpn != 0 || name != NULL)) { 1413 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1414 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 1415 iid = i; 1416 break; 1417 } 1418 if (name != NULL && port->wwpn_iid[i].name != NULL && 1419 strcmp(name, port->wwpn_iid[i].name) == 0) { 1420 iid = i; 1421 break; 1422 } 1423 } 1424 } 1425 1426 if (iid < 0) { 1427 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1428 if (port->wwpn_iid[i].in_use == 0 && 1429 port->wwpn_iid[i].wwpn == 0 && 1430 port->wwpn_iid[i].name == NULL) { 1431 iid = i; 1432 break; 1433 } 1434 } 1435 } 1436 1437 if (iid < 0) { 1438 best = -1; 1439 best_time = INT32_MAX; 1440 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1441 if (port->wwpn_iid[i].in_use == 0) { 1442 if (port->wwpn_iid[i].last_use < best_time) { 1443 best = i; 1444 best_time = port->wwpn_iid[i].last_use; 1445 } 1446 } 1447 } 1448 iid = best; 1449 } 1450 1451 if (iid < 0) { 1452 mtx_unlock(&softc->ctl_lock); 1453 free(name, M_CTL); 1454 return (-2); 1455 } 1456 1457 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 1458 /* 1459 * This is not an error yet. 1460 */ 1461 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 1462 #if 0 1463 printf("%s: port %d iid %u WWPN %#jx arrived" 1464 " again\n", __func__, port->targ_port, 1465 iid, (uintmax_t)wwpn); 1466 #endif 1467 goto take; 1468 } 1469 if (name != NULL && port->wwpn_iid[iid].name != NULL && 1470 strcmp(name, port->wwpn_iid[iid].name) == 0) { 1471 #if 0 1472 printf("%s: port %d iid %u name '%s' arrived" 1473 " again\n", __func__, port->targ_port, 1474 iid, name); 1475 #endif 1476 goto take; 1477 } 1478 1479 /* 1480 * This is an error, but what do we do about it? The 1481 * driver is telling us we have a new WWPN for this 1482 * initiator ID, so we pretty much need to use it. 1483 */ 1484 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 1485 " but WWPN %#jx '%s' is still at that address\n", 1486 __func__, port->targ_port, iid, wwpn, name, 1487 (uintmax_t)port->wwpn_iid[iid].wwpn, 1488 port->wwpn_iid[iid].name); 1489 1490 /* 1491 * XXX KDM clear have_ca and ua_pending on each LUN for 1492 * this initiator. 1493 */ 1494 } 1495 take: 1496 free(port->wwpn_iid[iid].name, M_CTL); 1497 port->wwpn_iid[iid].name = name; 1498 port->wwpn_iid[iid].wwpn = wwpn; 1499 port->wwpn_iid[iid].in_use++; 1500 mtx_unlock(&softc->ctl_lock); 1501 1502 return (iid); 1503 } 1504 1505 static int 1506 ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 1507 { 1508 int len; 1509 1510 switch (port->port_type) { 1511 case CTL_PORT_FC: 1512 { 1513 struct scsi_transportid_fcp *id = 1514 (struct scsi_transportid_fcp *)buf; 1515 if (port->wwpn_iid[iid].wwpn == 0) 1516 return (0); 1517 memset(id, 0, sizeof(*id)); 1518 id->format_protocol = SCSI_PROTO_FC; 1519 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 1520 return (sizeof(*id)); 1521 } 1522 case CTL_PORT_ISCSI: 1523 { 1524 struct scsi_transportid_iscsi_port *id = 1525 (struct scsi_transportid_iscsi_port *)buf; 1526 if (port->wwpn_iid[iid].name == NULL) 1527 return (0); 1528 memset(id, 0, 256); 1529 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 1530 SCSI_PROTO_ISCSI; 1531 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 1532 len = roundup2(min(len, 252), 4); 1533 scsi_ulto2b(len, id->additional_length); 1534 return (sizeof(*id) + len); 1535 } 1536 case CTL_PORT_SAS: 1537 { 1538 struct scsi_transportid_sas *id = 1539 (struct scsi_transportid_sas *)buf; 1540 if (port->wwpn_iid[iid].wwpn == 0) 1541 return (0); 1542 memset(id, 0, sizeof(*id)); 1543 id->format_protocol = SCSI_PROTO_SAS; 1544 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 1545 return (sizeof(*id)); 1546 } 1547 default: 1548 { 1549 struct scsi_transportid_spi *id = 1550 (struct scsi_transportid_spi *)buf; 1551 memset(id, 0, sizeof(*id)); 1552 id->format_protocol = SCSI_PROTO_SPI; 1553 scsi_ulto2b(iid, id->scsi_addr); 1554 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 1555 return (sizeof(*id)); 1556 } 1557 } 1558 } 1559 1560 static int 1561 ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id) 1562 { 1563 return (0); 1564 } 1565 1566 static int 1567 ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id) 1568 { 1569 return (0); 1570 } 1571 1572 /* 1573 * Data movement routine for the CTL ioctl frontend port. 1574 */ 1575 static int 1576 ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio) 1577 { 1578 struct ctl_sg_entry *ext_sglist, *kern_sglist; 1579 struct ctl_sg_entry ext_entry, kern_entry; 1580 int ext_sglen, ext_sg_entries, kern_sg_entries; 1581 int ext_sg_start, ext_offset; 1582 int len_to_copy, len_copied; 1583 int kern_watermark, ext_watermark; 1584 int ext_sglist_malloced; 1585 int i, j; 1586 1587 ext_sglist_malloced = 0; 1588 ext_sg_start = 0; 1589 ext_offset = 0; 1590 1591 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove\n")); 1592 1593 /* 1594 * If this flag is set, fake the data transfer. 1595 */ 1596 if (ctsio->io_hdr.flags & CTL_FLAG_NO_DATAMOVE) { 1597 ctsio->ext_data_filled = ctsio->ext_data_len; 1598 goto bailout; 1599 } 1600 1601 /* 1602 * To simplify things here, if we have a single buffer, stick it in 1603 * a S/G entry and just make it a single entry S/G list. 1604 */ 1605 if (ctsio->io_hdr.flags & CTL_FLAG_EDPTR_SGLIST) { 1606 int len_seen; 1607 1608 ext_sglen = ctsio->ext_sg_entries * sizeof(*ext_sglist); 1609 1610 ext_sglist = (struct ctl_sg_entry *)malloc(ext_sglen, M_CTL, 1611 M_WAITOK); 1612 ext_sglist_malloced = 1; 1613 if (copyin(ctsio->ext_data_ptr, ext_sglist, 1614 ext_sglen) != 0) { 1615 ctl_set_internal_failure(ctsio, 1616 /*sks_valid*/ 0, 1617 /*retry_count*/ 0); 1618 goto bailout; 1619 } 1620 ext_sg_entries = ctsio->ext_sg_entries; 1621 len_seen = 0; 1622 for (i = 0; i < ext_sg_entries; i++) { 1623 if ((len_seen + ext_sglist[i].len) >= 1624 ctsio->ext_data_filled) { 1625 ext_sg_start = i; 1626 ext_offset = ctsio->ext_data_filled - len_seen; 1627 break; 1628 } 1629 len_seen += ext_sglist[i].len; 1630 } 1631 } else { 1632 ext_sglist = &ext_entry; 1633 ext_sglist->addr = ctsio->ext_data_ptr; 1634 ext_sglist->len = ctsio->ext_data_len; 1635 ext_sg_entries = 1; 1636 ext_sg_start = 0; 1637 ext_offset = ctsio->ext_data_filled; 1638 } 1639 1640 if (ctsio->kern_sg_entries > 0) { 1641 kern_sglist = (struct ctl_sg_entry *)ctsio->kern_data_ptr; 1642 kern_sg_entries = ctsio->kern_sg_entries; 1643 } else { 1644 kern_sglist = &kern_entry; 1645 kern_sglist->addr = ctsio->kern_data_ptr; 1646 kern_sglist->len = ctsio->kern_data_len; 1647 kern_sg_entries = 1; 1648 } 1649 1650 1651 kern_watermark = 0; 1652 ext_watermark = ext_offset; 1653 len_copied = 0; 1654 for (i = ext_sg_start, j = 0; 1655 i < ext_sg_entries && j < kern_sg_entries;) { 1656 uint8_t *ext_ptr, *kern_ptr; 1657 1658 len_to_copy = ctl_min(ext_sglist[i].len - ext_watermark, 1659 kern_sglist[j].len - kern_watermark); 1660 1661 ext_ptr = (uint8_t *)ext_sglist[i].addr; 1662 ext_ptr = ext_ptr + ext_watermark; 1663 if (ctsio->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 1664 /* 1665 * XXX KDM fix this! 1666 */ 1667 panic("need to implement bus address support"); 1668 #if 0 1669 kern_ptr = bus_to_virt(kern_sglist[j].addr); 1670 #endif 1671 } else 1672 kern_ptr = (uint8_t *)kern_sglist[j].addr; 1673 kern_ptr = kern_ptr + kern_watermark; 1674 1675 kern_watermark += len_to_copy; 1676 ext_watermark += len_to_copy; 1677 1678 if ((ctsio->io_hdr.flags & CTL_FLAG_DATA_MASK) == 1679 CTL_FLAG_DATA_IN) { 1680 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1681 "bytes to user\n", len_to_copy)); 1682 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1683 "to %p\n", kern_ptr, ext_ptr)); 1684 if (copyout(kern_ptr, ext_ptr, len_to_copy) != 0) { 1685 ctl_set_internal_failure(ctsio, 1686 /*sks_valid*/ 0, 1687 /*retry_count*/ 0); 1688 goto bailout; 1689 } 1690 } else { 1691 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1692 "bytes from user\n", len_to_copy)); 1693 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1694 "to %p\n", ext_ptr, kern_ptr)); 1695 if (copyin(ext_ptr, kern_ptr, len_to_copy)!= 0){ 1696 ctl_set_internal_failure(ctsio, 1697 /*sks_valid*/ 0, 1698 /*retry_count*/0); 1699 goto bailout; 1700 } 1701 } 1702 1703 len_copied += len_to_copy; 1704 1705 if (ext_sglist[i].len == ext_watermark) { 1706 i++; 1707 ext_watermark = 0; 1708 } 1709 1710 if (kern_sglist[j].len == kern_watermark) { 1711 j++; 1712 kern_watermark = 0; 1713 } 1714 } 1715 1716 ctsio->ext_data_filled += len_copied; 1717 1718 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_sg_entries: %d, " 1719 "kern_sg_entries: %d\n", ext_sg_entries, 1720 kern_sg_entries)); 1721 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_data_len = %d, " 1722 "kern_data_len = %d\n", ctsio->ext_data_len, 1723 ctsio->kern_data_len)); 1724 1725 1726 /* XXX KDM set residual?? */ 1727 bailout: 1728 1729 if (ext_sglist_malloced != 0) 1730 free(ext_sglist, M_CTL); 1731 1732 return (CTL_RETVAL_COMPLETE); 1733 } 1734 1735 /* 1736 * Serialize a command that went down the "wrong" side, and so was sent to 1737 * this controller for execution. The logic is a little different than the 1738 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 1739 * sent back to the other side, but in the success case, we execute the 1740 * command on this side (XFER mode) or tell the other side to execute it 1741 * (SER_ONLY mode). 1742 */ 1743 static int 1744 ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 1745 { 1746 struct ctl_softc *ctl_softc; 1747 union ctl_ha_msg msg_info; 1748 struct ctl_lun *lun; 1749 int retval = 0; 1750 uint32_t targ_lun; 1751 1752 ctl_softc = control_softc; 1753 1754 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 1755 lun = ctl_softc->ctl_luns[targ_lun]; 1756 if (lun==NULL) 1757 { 1758 /* 1759 * Why isn't LUN defined? The other side wouldn't 1760 * send a cmd if the LUN is undefined. 1761 */ 1762 printf("%s: Bad JUJU!, LUN is NULL!\n", __func__); 1763 1764 /* "Logical unit not supported" */ 1765 ctl_set_sense_data(&msg_info.scsi.sense_data, 1766 lun, 1767 /*sense_format*/SSD_TYPE_NONE, 1768 /*current_error*/ 1, 1769 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1770 /*asc*/ 0x25, 1771 /*ascq*/ 0x00, 1772 SSD_ELEM_NONE); 1773 1774 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1775 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1776 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1777 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1778 msg_info.hdr.serializing_sc = NULL; 1779 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1780 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1781 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1782 } 1783 return(1); 1784 1785 } 1786 1787 mtx_lock(&lun->lun_lock); 1788 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1789 1790 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 1791 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 1792 ooa_links))) { 1793 case CTL_ACTION_BLOCK: 1794 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 1795 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 1796 blocked_links); 1797 break; 1798 case CTL_ACTION_PASS: 1799 case CTL_ACTION_SKIP: 1800 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 1801 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 1802 ctl_enqueue_rtr((union ctl_io *)ctsio); 1803 } else { 1804 1805 /* send msg back to other side */ 1806 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1807 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 1808 msg_info.hdr.msg_type = CTL_MSG_R2R; 1809 #if 0 1810 printf("2. pOrig %x\n", (int)msg_info.hdr.original_sc); 1811 #endif 1812 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1813 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1814 } 1815 } 1816 break; 1817 case CTL_ACTION_OVERLAP: 1818 /* OVERLAPPED COMMANDS ATTEMPTED */ 1819 ctl_set_sense_data(&msg_info.scsi.sense_data, 1820 lun, 1821 /*sense_format*/SSD_TYPE_NONE, 1822 /*current_error*/ 1, 1823 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1824 /*asc*/ 0x4E, 1825 /*ascq*/ 0x00, 1826 SSD_ELEM_NONE); 1827 1828 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1829 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1830 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1831 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1832 msg_info.hdr.serializing_sc = NULL; 1833 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1834 #if 0 1835 printf("BAD JUJU:Major Bummer Overlap\n"); 1836 #endif 1837 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1838 retval = 1; 1839 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1840 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1841 } 1842 break; 1843 case CTL_ACTION_OVERLAP_TAG: 1844 /* TAGGED OVERLAPPED COMMANDS (NN = QUEUE TAG) */ 1845 ctl_set_sense_data(&msg_info.scsi.sense_data, 1846 lun, 1847 /*sense_format*/SSD_TYPE_NONE, 1848 /*current_error*/ 1, 1849 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1850 /*asc*/ 0x4D, 1851 /*ascq*/ ctsio->tag_num & 0xff, 1852 SSD_ELEM_NONE); 1853 1854 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1855 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1856 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1857 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1858 msg_info.hdr.serializing_sc = NULL; 1859 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1860 #if 0 1861 printf("BAD JUJU:Major Bummer Overlap Tag\n"); 1862 #endif 1863 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1864 retval = 1; 1865 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1866 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1867 } 1868 break; 1869 case CTL_ACTION_ERROR: 1870 default: 1871 /* "Internal target failure" */ 1872 ctl_set_sense_data(&msg_info.scsi.sense_data, 1873 lun, 1874 /*sense_format*/SSD_TYPE_NONE, 1875 /*current_error*/ 1, 1876 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 1877 /*asc*/ 0x44, 1878 /*ascq*/ 0x00, 1879 SSD_ELEM_NONE); 1880 1881 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1882 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1883 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1884 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1885 msg_info.hdr.serializing_sc = NULL; 1886 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1887 #if 0 1888 printf("BAD JUJU:Major Bummer HW Error\n"); 1889 #endif 1890 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1891 retval = 1; 1892 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1893 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1894 } 1895 break; 1896 } 1897 mtx_unlock(&lun->lun_lock); 1898 return (retval); 1899 } 1900 1901 static int 1902 ctl_ioctl_submit_wait(union ctl_io *io) 1903 { 1904 struct ctl_fe_ioctl_params params; 1905 ctl_fe_ioctl_state last_state; 1906 int done, retval; 1907 1908 retval = 0; 1909 1910 bzero(¶ms, sizeof(params)); 1911 1912 mtx_init(¶ms.ioctl_mtx, "ctliocmtx", NULL, MTX_DEF); 1913 cv_init(¶ms.sem, "ctlioccv"); 1914 params.state = CTL_IOCTL_INPROG; 1915 last_state = params.state; 1916 1917 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = ¶ms; 1918 1919 CTL_DEBUG_PRINT(("ctl_ioctl_submit_wait\n")); 1920 1921 /* This shouldn't happen */ 1922 if ((retval = ctl_queue(io)) != CTL_RETVAL_COMPLETE) 1923 return (retval); 1924 1925 done = 0; 1926 1927 do { 1928 mtx_lock(¶ms.ioctl_mtx); 1929 /* 1930 * Check the state here, and don't sleep if the state has 1931 * already changed (i.e. wakeup has already occured, but we 1932 * weren't waiting yet). 1933 */ 1934 if (params.state == last_state) { 1935 /* XXX KDM cv_wait_sig instead? */ 1936 cv_wait(¶ms.sem, ¶ms.ioctl_mtx); 1937 } 1938 last_state = params.state; 1939 1940 switch (params.state) { 1941 case CTL_IOCTL_INPROG: 1942 /* Why did we wake up? */ 1943 /* XXX KDM error here? */ 1944 mtx_unlock(¶ms.ioctl_mtx); 1945 break; 1946 case CTL_IOCTL_DATAMOVE: 1947 CTL_DEBUG_PRINT(("got CTL_IOCTL_DATAMOVE\n")); 1948 1949 /* 1950 * change last_state back to INPROG to avoid 1951 * deadlock on subsequent data moves. 1952 */ 1953 params.state = last_state = CTL_IOCTL_INPROG; 1954 1955 mtx_unlock(¶ms.ioctl_mtx); 1956 ctl_ioctl_do_datamove(&io->scsiio); 1957 /* 1958 * Note that in some cases, most notably writes, 1959 * this will queue the I/O and call us back later. 1960 * In other cases, generally reads, this routine 1961 * will immediately call back and wake us up, 1962 * probably using our own context. 1963 */ 1964 io->scsiio.be_move_done(io); 1965 break; 1966 case CTL_IOCTL_DONE: 1967 mtx_unlock(¶ms.ioctl_mtx); 1968 CTL_DEBUG_PRINT(("got CTL_IOCTL_DONE\n")); 1969 done = 1; 1970 break; 1971 default: 1972 mtx_unlock(¶ms.ioctl_mtx); 1973 /* XXX KDM error here? */ 1974 break; 1975 } 1976 } while (done == 0); 1977 1978 mtx_destroy(¶ms.ioctl_mtx); 1979 cv_destroy(¶ms.sem); 1980 1981 return (CTL_RETVAL_COMPLETE); 1982 } 1983 1984 static void 1985 ctl_ioctl_datamove(union ctl_io *io) 1986 { 1987 struct ctl_fe_ioctl_params *params; 1988 1989 params = (struct ctl_fe_ioctl_params *) 1990 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 1991 1992 mtx_lock(¶ms->ioctl_mtx); 1993 params->state = CTL_IOCTL_DATAMOVE; 1994 cv_broadcast(¶ms->sem); 1995 mtx_unlock(¶ms->ioctl_mtx); 1996 } 1997 1998 static void 1999 ctl_ioctl_done(union ctl_io *io) 2000 { 2001 struct ctl_fe_ioctl_params *params; 2002 2003 params = (struct ctl_fe_ioctl_params *) 2004 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 2005 2006 mtx_lock(¶ms->ioctl_mtx); 2007 params->state = CTL_IOCTL_DONE; 2008 cv_broadcast(¶ms->sem); 2009 mtx_unlock(¶ms->ioctl_mtx); 2010 } 2011 2012 static void 2013 ctl_ioctl_hard_startstop_callback(void *arg, struct cfi_metatask *metatask) 2014 { 2015 struct ctl_fe_ioctl_startstop_info *sd_info; 2016 2017 sd_info = (struct ctl_fe_ioctl_startstop_info *)arg; 2018 2019 sd_info->hs_info.status = metatask->status; 2020 sd_info->hs_info.total_luns = metatask->taskinfo.startstop.total_luns; 2021 sd_info->hs_info.luns_complete = 2022 metatask->taskinfo.startstop.luns_complete; 2023 sd_info->hs_info.luns_failed = metatask->taskinfo.startstop.luns_failed; 2024 2025 cv_broadcast(&sd_info->sem); 2026 } 2027 2028 static void 2029 ctl_ioctl_bbrread_callback(void *arg, struct cfi_metatask *metatask) 2030 { 2031 struct ctl_fe_ioctl_bbrread_info *fe_bbr_info; 2032 2033 fe_bbr_info = (struct ctl_fe_ioctl_bbrread_info *)arg; 2034 2035 mtx_lock(fe_bbr_info->lock); 2036 fe_bbr_info->bbr_info->status = metatask->status; 2037 fe_bbr_info->bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2038 fe_bbr_info->wakeup_done = 1; 2039 mtx_unlock(fe_bbr_info->lock); 2040 2041 cv_broadcast(&fe_bbr_info->sem); 2042 } 2043 2044 /* 2045 * Returns 0 for success, errno for failure. 2046 */ 2047 static int 2048 ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2049 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2050 { 2051 union ctl_io *io; 2052 int retval; 2053 2054 retval = 0; 2055 2056 mtx_lock(&lun->lun_lock); 2057 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2058 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2059 ooa_links)) { 2060 struct ctl_ooa_entry *entry; 2061 2062 /* 2063 * If we've got more than we can fit, just count the 2064 * remaining entries. 2065 */ 2066 if (*cur_fill_num >= ooa_hdr->alloc_num) 2067 continue; 2068 2069 entry = &kern_entries[*cur_fill_num]; 2070 2071 entry->tag_num = io->scsiio.tag_num; 2072 entry->lun_num = lun->lun; 2073 #ifdef CTL_TIME_IO 2074 entry->start_bt = io->io_hdr.start_bt; 2075 #endif 2076 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2077 entry->cdb_len = io->scsiio.cdb_len; 2078 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2079 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2080 2081 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2082 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2083 2084 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2085 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2086 2087 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2088 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2089 2090 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2091 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2092 } 2093 mtx_unlock(&lun->lun_lock); 2094 2095 return (retval); 2096 } 2097 2098 static void * 2099 ctl_copyin_alloc(void *user_addr, int len, char *error_str, 2100 size_t error_str_len) 2101 { 2102 void *kptr; 2103 2104 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2105 2106 if (copyin(user_addr, kptr, len) != 0) { 2107 snprintf(error_str, error_str_len, "Error copying %d bytes " 2108 "from user address %p to kernel address %p", len, 2109 user_addr, kptr); 2110 free(kptr, M_CTL); 2111 return (NULL); 2112 } 2113 2114 return (kptr); 2115 } 2116 2117 static void 2118 ctl_free_args(int num_args, struct ctl_be_arg *args) 2119 { 2120 int i; 2121 2122 if (args == NULL) 2123 return; 2124 2125 for (i = 0; i < num_args; i++) { 2126 free(args[i].kname, M_CTL); 2127 free(args[i].kvalue, M_CTL); 2128 } 2129 2130 free(args, M_CTL); 2131 } 2132 2133 static struct ctl_be_arg * 2134 ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2135 char *error_str, size_t error_str_len) 2136 { 2137 struct ctl_be_arg *args; 2138 int i; 2139 2140 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2141 error_str, error_str_len); 2142 2143 if (args == NULL) 2144 goto bailout; 2145 2146 for (i = 0; i < num_args; i++) { 2147 args[i].kname = NULL; 2148 args[i].kvalue = NULL; 2149 } 2150 2151 for (i = 0; i < num_args; i++) { 2152 uint8_t *tmpptr; 2153 2154 args[i].kname = ctl_copyin_alloc(args[i].name, 2155 args[i].namelen, error_str, error_str_len); 2156 if (args[i].kname == NULL) 2157 goto bailout; 2158 2159 if (args[i].kname[args[i].namelen - 1] != '\0') { 2160 snprintf(error_str, error_str_len, "Argument %d " 2161 "name is not NUL-terminated", i); 2162 goto bailout; 2163 } 2164 2165 if (args[i].flags & CTL_BEARG_RD) { 2166 tmpptr = ctl_copyin_alloc(args[i].value, 2167 args[i].vallen, error_str, error_str_len); 2168 if (tmpptr == NULL) 2169 goto bailout; 2170 if ((args[i].flags & CTL_BEARG_ASCII) 2171 && (tmpptr[args[i].vallen - 1] != '\0')) { 2172 snprintf(error_str, error_str_len, "Argument " 2173 "%d value is not NUL-terminated", i); 2174 goto bailout; 2175 } 2176 args[i].kvalue = tmpptr; 2177 } else { 2178 args[i].kvalue = malloc(args[i].vallen, 2179 M_CTL, M_WAITOK | M_ZERO); 2180 } 2181 } 2182 2183 return (args); 2184 bailout: 2185 2186 ctl_free_args(num_args, args); 2187 2188 return (NULL); 2189 } 2190 2191 static void 2192 ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2193 { 2194 int i; 2195 2196 for (i = 0; i < num_args; i++) { 2197 if (args[i].flags & CTL_BEARG_WR) 2198 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2199 } 2200 } 2201 2202 /* 2203 * Escape characters that are illegal or not recommended in XML. 2204 */ 2205 int 2206 ctl_sbuf_printf_esc(struct sbuf *sb, char *str) 2207 { 2208 int retval; 2209 2210 retval = 0; 2211 2212 for (; *str; str++) { 2213 switch (*str) { 2214 case '&': 2215 retval = sbuf_printf(sb, "&"); 2216 break; 2217 case '>': 2218 retval = sbuf_printf(sb, ">"); 2219 break; 2220 case '<': 2221 retval = sbuf_printf(sb, "<"); 2222 break; 2223 default: 2224 retval = sbuf_putc(sb, *str); 2225 break; 2226 } 2227 2228 if (retval != 0) 2229 break; 2230 2231 } 2232 2233 return (retval); 2234 } 2235 2236 static int 2237 ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2238 struct thread *td) 2239 { 2240 struct ctl_softc *softc; 2241 int retval; 2242 2243 softc = control_softc; 2244 2245 retval = 0; 2246 2247 switch (cmd) { 2248 case CTL_IO: { 2249 union ctl_io *io; 2250 void *pool_tmp; 2251 2252 /* 2253 * If we haven't been "enabled", don't allow any SCSI I/O 2254 * to this FETD. 2255 */ 2256 if ((softc->ioctl_info.flags & CTL_IOCTL_FLAG_ENABLED) == 0) { 2257 retval = EPERM; 2258 break; 2259 } 2260 2261 io = ctl_alloc_io(softc->ioctl_info.port.ctl_pool_ref); 2262 if (io == NULL) { 2263 printf("ctl_ioctl: can't allocate ctl_io!\n"); 2264 retval = ENOSPC; 2265 break; 2266 } 2267 2268 /* 2269 * Need to save the pool reference so it doesn't get 2270 * spammed by the user's ctl_io. 2271 */ 2272 pool_tmp = io->io_hdr.pool; 2273 2274 memcpy(io, (void *)addr, sizeof(*io)); 2275 2276 io->io_hdr.pool = pool_tmp; 2277 /* 2278 * No status yet, so make sure the status is set properly. 2279 */ 2280 io->io_hdr.status = CTL_STATUS_NONE; 2281 2282 /* 2283 * The user sets the initiator ID, target and LUN IDs. 2284 */ 2285 io->io_hdr.nexus.targ_port = softc->ioctl_info.port.targ_port; 2286 io->io_hdr.flags |= CTL_FLAG_USER_REQ; 2287 if ((io->io_hdr.io_type == CTL_IO_SCSI) 2288 && (io->scsiio.tag_type != CTL_TAG_UNTAGGED)) 2289 io->scsiio.tag_num = softc->ioctl_info.cur_tag_num++; 2290 2291 retval = ctl_ioctl_submit_wait(io); 2292 2293 if (retval != 0) { 2294 ctl_free_io(io); 2295 break; 2296 } 2297 2298 memcpy((void *)addr, io, sizeof(*io)); 2299 2300 /* return this to our pool */ 2301 ctl_free_io(io); 2302 2303 break; 2304 } 2305 case CTL_ENABLE_PORT: 2306 case CTL_DISABLE_PORT: 2307 case CTL_SET_PORT_WWNS: { 2308 struct ctl_port *port; 2309 struct ctl_port_entry *entry; 2310 2311 entry = (struct ctl_port_entry *)addr; 2312 2313 mtx_lock(&softc->ctl_lock); 2314 STAILQ_FOREACH(port, &softc->port_list, links) { 2315 int action, done; 2316 2317 action = 0; 2318 done = 0; 2319 2320 if ((entry->port_type == CTL_PORT_NONE) 2321 && (entry->targ_port == port->targ_port)) { 2322 /* 2323 * If the user only wants to enable or 2324 * disable or set WWNs on a specific port, 2325 * do the operation and we're done. 2326 */ 2327 action = 1; 2328 done = 1; 2329 } else if (entry->port_type & port->port_type) { 2330 /* 2331 * Compare the user's type mask with the 2332 * particular frontend type to see if we 2333 * have a match. 2334 */ 2335 action = 1; 2336 done = 0; 2337 2338 /* 2339 * Make sure the user isn't trying to set 2340 * WWNs on multiple ports at the same time. 2341 */ 2342 if (cmd == CTL_SET_PORT_WWNS) { 2343 printf("%s: Can't set WWNs on " 2344 "multiple ports\n", __func__); 2345 retval = EINVAL; 2346 break; 2347 } 2348 } 2349 if (action != 0) { 2350 /* 2351 * XXX KDM we have to drop the lock here, 2352 * because the online/offline operations 2353 * can potentially block. We need to 2354 * reference count the frontends so they 2355 * can't go away, 2356 */ 2357 mtx_unlock(&softc->ctl_lock); 2358 2359 if (cmd == CTL_ENABLE_PORT) { 2360 struct ctl_lun *lun; 2361 2362 STAILQ_FOREACH(lun, &softc->lun_list, 2363 links) { 2364 port->lun_enable(port->targ_lun_arg, 2365 lun->target, 2366 lun->lun); 2367 } 2368 2369 ctl_port_online(port); 2370 } else if (cmd == CTL_DISABLE_PORT) { 2371 struct ctl_lun *lun; 2372 2373 ctl_port_offline(port); 2374 2375 STAILQ_FOREACH(lun, &softc->lun_list, 2376 links) { 2377 port->lun_disable( 2378 port->targ_lun_arg, 2379 lun->target, 2380 lun->lun); 2381 } 2382 } 2383 2384 mtx_lock(&softc->ctl_lock); 2385 2386 if (cmd == CTL_SET_PORT_WWNS) 2387 ctl_port_set_wwns(port, 2388 (entry->flags & CTL_PORT_WWNN_VALID) ? 2389 1 : 0, entry->wwnn, 2390 (entry->flags & CTL_PORT_WWPN_VALID) ? 2391 1 : 0, entry->wwpn); 2392 } 2393 if (done != 0) 2394 break; 2395 } 2396 mtx_unlock(&softc->ctl_lock); 2397 break; 2398 } 2399 case CTL_GET_PORT_LIST: { 2400 struct ctl_port *port; 2401 struct ctl_port_list *list; 2402 int i; 2403 2404 list = (struct ctl_port_list *)addr; 2405 2406 if (list->alloc_len != (list->alloc_num * 2407 sizeof(struct ctl_port_entry))) { 2408 printf("%s: CTL_GET_PORT_LIST: alloc_len %u != " 2409 "alloc_num %u * sizeof(struct ctl_port_entry) " 2410 "%zu\n", __func__, list->alloc_len, 2411 list->alloc_num, sizeof(struct ctl_port_entry)); 2412 retval = EINVAL; 2413 break; 2414 } 2415 list->fill_len = 0; 2416 list->fill_num = 0; 2417 list->dropped_num = 0; 2418 i = 0; 2419 mtx_lock(&softc->ctl_lock); 2420 STAILQ_FOREACH(port, &softc->port_list, links) { 2421 struct ctl_port_entry entry, *list_entry; 2422 2423 if (list->fill_num >= list->alloc_num) { 2424 list->dropped_num++; 2425 continue; 2426 } 2427 2428 entry.port_type = port->port_type; 2429 strlcpy(entry.port_name, port->port_name, 2430 sizeof(entry.port_name)); 2431 entry.targ_port = port->targ_port; 2432 entry.physical_port = port->physical_port; 2433 entry.virtual_port = port->virtual_port; 2434 entry.wwnn = port->wwnn; 2435 entry.wwpn = port->wwpn; 2436 if (port->status & CTL_PORT_STATUS_ONLINE) 2437 entry.online = 1; 2438 else 2439 entry.online = 0; 2440 2441 list_entry = &list->entries[i]; 2442 2443 retval = copyout(&entry, list_entry, sizeof(entry)); 2444 if (retval != 0) { 2445 printf("%s: CTL_GET_PORT_LIST: copyout " 2446 "returned %d\n", __func__, retval); 2447 break; 2448 } 2449 i++; 2450 list->fill_num++; 2451 list->fill_len += sizeof(entry); 2452 } 2453 mtx_unlock(&softc->ctl_lock); 2454 2455 /* 2456 * If this is non-zero, we had a copyout fault, so there's 2457 * probably no point in attempting to set the status inside 2458 * the structure. 2459 */ 2460 if (retval != 0) 2461 break; 2462 2463 if (list->dropped_num > 0) 2464 list->status = CTL_PORT_LIST_NEED_MORE_SPACE; 2465 else 2466 list->status = CTL_PORT_LIST_OK; 2467 break; 2468 } 2469 case CTL_DUMP_OOA: { 2470 struct ctl_lun *lun; 2471 union ctl_io *io; 2472 char printbuf[128]; 2473 struct sbuf sb; 2474 2475 mtx_lock(&softc->ctl_lock); 2476 printf("Dumping OOA queues:\n"); 2477 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2478 mtx_lock(&lun->lun_lock); 2479 for (io = (union ctl_io *)TAILQ_FIRST( 2480 &lun->ooa_queue); io != NULL; 2481 io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2482 ooa_links)) { 2483 sbuf_new(&sb, printbuf, sizeof(printbuf), 2484 SBUF_FIXEDLEN); 2485 sbuf_printf(&sb, "LUN %jd tag 0x%04x%s%s%s%s: ", 2486 (intmax_t)lun->lun, 2487 io->scsiio.tag_num, 2488 (io->io_hdr.flags & 2489 CTL_FLAG_BLOCKED) ? "" : " BLOCKED", 2490 (io->io_hdr.flags & 2491 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 2492 (io->io_hdr.flags & 2493 CTL_FLAG_ABORT) ? " ABORT" : "", 2494 (io->io_hdr.flags & 2495 CTL_FLAG_IS_WAS_ON_RTR) ? " RTR" : ""); 2496 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 2497 sbuf_finish(&sb); 2498 printf("%s\n", sbuf_data(&sb)); 2499 } 2500 mtx_unlock(&lun->lun_lock); 2501 } 2502 printf("OOA queues dump done\n"); 2503 mtx_unlock(&softc->ctl_lock); 2504 break; 2505 } 2506 case CTL_GET_OOA: { 2507 struct ctl_lun *lun; 2508 struct ctl_ooa *ooa_hdr; 2509 struct ctl_ooa_entry *entries; 2510 uint32_t cur_fill_num; 2511 2512 ooa_hdr = (struct ctl_ooa *)addr; 2513 2514 if ((ooa_hdr->alloc_len == 0) 2515 || (ooa_hdr->alloc_num == 0)) { 2516 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2517 "must be non-zero\n", __func__, 2518 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2519 retval = EINVAL; 2520 break; 2521 } 2522 2523 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2524 sizeof(struct ctl_ooa_entry))) { 2525 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2526 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2527 __func__, ooa_hdr->alloc_len, 2528 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2529 retval = EINVAL; 2530 break; 2531 } 2532 2533 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2534 if (entries == NULL) { 2535 printf("%s: could not allocate %d bytes for OOA " 2536 "dump\n", __func__, ooa_hdr->alloc_len); 2537 retval = ENOMEM; 2538 break; 2539 } 2540 2541 mtx_lock(&softc->ctl_lock); 2542 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2543 && ((ooa_hdr->lun_num > CTL_MAX_LUNS) 2544 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2545 mtx_unlock(&softc->ctl_lock); 2546 free(entries, M_CTL); 2547 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2548 __func__, (uintmax_t)ooa_hdr->lun_num); 2549 retval = EINVAL; 2550 break; 2551 } 2552 2553 cur_fill_num = 0; 2554 2555 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2556 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2557 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2558 ooa_hdr, entries); 2559 if (retval != 0) 2560 break; 2561 } 2562 if (retval != 0) { 2563 mtx_unlock(&softc->ctl_lock); 2564 free(entries, M_CTL); 2565 break; 2566 } 2567 } else { 2568 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2569 2570 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num,ooa_hdr, 2571 entries); 2572 } 2573 mtx_unlock(&softc->ctl_lock); 2574 2575 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2576 ooa_hdr->fill_len = ooa_hdr->fill_num * 2577 sizeof(struct ctl_ooa_entry); 2578 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2579 if (retval != 0) { 2580 printf("%s: error copying out %d bytes for OOA dump\n", 2581 __func__, ooa_hdr->fill_len); 2582 } 2583 2584 getbintime(&ooa_hdr->cur_bt); 2585 2586 if (cur_fill_num > ooa_hdr->alloc_num) { 2587 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2588 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2589 } else { 2590 ooa_hdr->dropped_num = 0; 2591 ooa_hdr->status = CTL_OOA_OK; 2592 } 2593 2594 free(entries, M_CTL); 2595 break; 2596 } 2597 case CTL_CHECK_OOA: { 2598 union ctl_io *io; 2599 struct ctl_lun *lun; 2600 struct ctl_ooa_info *ooa_info; 2601 2602 2603 ooa_info = (struct ctl_ooa_info *)addr; 2604 2605 if (ooa_info->lun_id >= CTL_MAX_LUNS) { 2606 ooa_info->status = CTL_OOA_INVALID_LUN; 2607 break; 2608 } 2609 mtx_lock(&softc->ctl_lock); 2610 lun = softc->ctl_luns[ooa_info->lun_id]; 2611 if (lun == NULL) { 2612 mtx_unlock(&softc->ctl_lock); 2613 ooa_info->status = CTL_OOA_INVALID_LUN; 2614 break; 2615 } 2616 mtx_lock(&lun->lun_lock); 2617 mtx_unlock(&softc->ctl_lock); 2618 ooa_info->num_entries = 0; 2619 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 2620 io != NULL; io = (union ctl_io *)TAILQ_NEXT( 2621 &io->io_hdr, ooa_links)) { 2622 ooa_info->num_entries++; 2623 } 2624 mtx_unlock(&lun->lun_lock); 2625 2626 ooa_info->status = CTL_OOA_SUCCESS; 2627 2628 break; 2629 } 2630 case CTL_HARD_START: 2631 case CTL_HARD_STOP: { 2632 struct ctl_fe_ioctl_startstop_info ss_info; 2633 struct cfi_metatask *metatask; 2634 struct mtx hs_mtx; 2635 2636 mtx_init(&hs_mtx, "HS Mutex", NULL, MTX_DEF); 2637 2638 cv_init(&ss_info.sem, "hard start/stop cv" ); 2639 2640 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2641 if (metatask == NULL) { 2642 retval = ENOMEM; 2643 mtx_destroy(&hs_mtx); 2644 break; 2645 } 2646 2647 if (cmd == CTL_HARD_START) 2648 metatask->tasktype = CFI_TASK_STARTUP; 2649 else 2650 metatask->tasktype = CFI_TASK_SHUTDOWN; 2651 2652 metatask->callback = ctl_ioctl_hard_startstop_callback; 2653 metatask->callback_arg = &ss_info; 2654 2655 cfi_action(metatask); 2656 2657 /* Wait for the callback */ 2658 mtx_lock(&hs_mtx); 2659 cv_wait_sig(&ss_info.sem, &hs_mtx); 2660 mtx_unlock(&hs_mtx); 2661 2662 /* 2663 * All information has been copied from the metatask by the 2664 * time cv_broadcast() is called, so we free the metatask here. 2665 */ 2666 cfi_free_metatask(metatask); 2667 2668 memcpy((void *)addr, &ss_info.hs_info, sizeof(ss_info.hs_info)); 2669 2670 mtx_destroy(&hs_mtx); 2671 break; 2672 } 2673 case CTL_BBRREAD: { 2674 struct ctl_bbrread_info *bbr_info; 2675 struct ctl_fe_ioctl_bbrread_info fe_bbr_info; 2676 struct mtx bbr_mtx; 2677 struct cfi_metatask *metatask; 2678 2679 bbr_info = (struct ctl_bbrread_info *)addr; 2680 2681 bzero(&fe_bbr_info, sizeof(fe_bbr_info)); 2682 2683 bzero(&bbr_mtx, sizeof(bbr_mtx)); 2684 mtx_init(&bbr_mtx, "BBR Mutex", NULL, MTX_DEF); 2685 2686 fe_bbr_info.bbr_info = bbr_info; 2687 fe_bbr_info.lock = &bbr_mtx; 2688 2689 cv_init(&fe_bbr_info.sem, "BBR read cv"); 2690 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2691 2692 if (metatask == NULL) { 2693 mtx_destroy(&bbr_mtx); 2694 cv_destroy(&fe_bbr_info.sem); 2695 retval = ENOMEM; 2696 break; 2697 } 2698 metatask->tasktype = CFI_TASK_BBRREAD; 2699 metatask->callback = ctl_ioctl_bbrread_callback; 2700 metatask->callback_arg = &fe_bbr_info; 2701 metatask->taskinfo.bbrread.lun_num = bbr_info->lun_num; 2702 metatask->taskinfo.bbrread.lba = bbr_info->lba; 2703 metatask->taskinfo.bbrread.len = bbr_info->len; 2704 2705 cfi_action(metatask); 2706 2707 mtx_lock(&bbr_mtx); 2708 while (fe_bbr_info.wakeup_done == 0) 2709 cv_wait_sig(&fe_bbr_info.sem, &bbr_mtx); 2710 mtx_unlock(&bbr_mtx); 2711 2712 bbr_info->status = metatask->status; 2713 bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2714 bbr_info->scsi_status = metatask->taskinfo.bbrread.scsi_status; 2715 memcpy(&bbr_info->sense_data, 2716 &metatask->taskinfo.bbrread.sense_data, 2717 ctl_min(sizeof(bbr_info->sense_data), 2718 sizeof(metatask->taskinfo.bbrread.sense_data))); 2719 2720 cfi_free_metatask(metatask); 2721 2722 mtx_destroy(&bbr_mtx); 2723 cv_destroy(&fe_bbr_info.sem); 2724 2725 break; 2726 } 2727 case CTL_DELAY_IO: { 2728 struct ctl_io_delay_info *delay_info; 2729 #ifdef CTL_IO_DELAY 2730 struct ctl_lun *lun; 2731 #endif /* CTL_IO_DELAY */ 2732 2733 delay_info = (struct ctl_io_delay_info *)addr; 2734 2735 #ifdef CTL_IO_DELAY 2736 mtx_lock(&softc->ctl_lock); 2737 2738 if ((delay_info->lun_id > CTL_MAX_LUNS) 2739 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2740 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2741 } else { 2742 lun = softc->ctl_luns[delay_info->lun_id]; 2743 mtx_lock(&lun->lun_lock); 2744 2745 delay_info->status = CTL_DELAY_STATUS_OK; 2746 2747 switch (delay_info->delay_type) { 2748 case CTL_DELAY_TYPE_CONT: 2749 break; 2750 case CTL_DELAY_TYPE_ONESHOT: 2751 break; 2752 default: 2753 delay_info->status = 2754 CTL_DELAY_STATUS_INVALID_TYPE; 2755 break; 2756 } 2757 2758 switch (delay_info->delay_loc) { 2759 case CTL_DELAY_LOC_DATAMOVE: 2760 lun->delay_info.datamove_type = 2761 delay_info->delay_type; 2762 lun->delay_info.datamove_delay = 2763 delay_info->delay_secs; 2764 break; 2765 case CTL_DELAY_LOC_DONE: 2766 lun->delay_info.done_type = 2767 delay_info->delay_type; 2768 lun->delay_info.done_delay = 2769 delay_info->delay_secs; 2770 break; 2771 default: 2772 delay_info->status = 2773 CTL_DELAY_STATUS_INVALID_LOC; 2774 break; 2775 } 2776 mtx_unlock(&lun->lun_lock); 2777 } 2778 2779 mtx_unlock(&softc->ctl_lock); 2780 #else 2781 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2782 #endif /* CTL_IO_DELAY */ 2783 break; 2784 } 2785 case CTL_REALSYNC_SET: { 2786 int *syncstate; 2787 2788 syncstate = (int *)addr; 2789 2790 mtx_lock(&softc->ctl_lock); 2791 switch (*syncstate) { 2792 case 0: 2793 softc->flags &= ~CTL_FLAG_REAL_SYNC; 2794 break; 2795 case 1: 2796 softc->flags |= CTL_FLAG_REAL_SYNC; 2797 break; 2798 default: 2799 retval = EINVAL; 2800 break; 2801 } 2802 mtx_unlock(&softc->ctl_lock); 2803 break; 2804 } 2805 case CTL_REALSYNC_GET: { 2806 int *syncstate; 2807 2808 syncstate = (int*)addr; 2809 2810 mtx_lock(&softc->ctl_lock); 2811 if (softc->flags & CTL_FLAG_REAL_SYNC) 2812 *syncstate = 1; 2813 else 2814 *syncstate = 0; 2815 mtx_unlock(&softc->ctl_lock); 2816 2817 break; 2818 } 2819 case CTL_SETSYNC: 2820 case CTL_GETSYNC: { 2821 struct ctl_sync_info *sync_info; 2822 struct ctl_lun *lun; 2823 2824 sync_info = (struct ctl_sync_info *)addr; 2825 2826 mtx_lock(&softc->ctl_lock); 2827 lun = softc->ctl_luns[sync_info->lun_id]; 2828 if (lun == NULL) { 2829 mtx_unlock(&softc->ctl_lock); 2830 sync_info->status = CTL_GS_SYNC_NO_LUN; 2831 } 2832 /* 2833 * Get or set the sync interval. We're not bounds checking 2834 * in the set case, hopefully the user won't do something 2835 * silly. 2836 */ 2837 mtx_lock(&lun->lun_lock); 2838 mtx_unlock(&softc->ctl_lock); 2839 if (cmd == CTL_GETSYNC) 2840 sync_info->sync_interval = lun->sync_interval; 2841 else 2842 lun->sync_interval = sync_info->sync_interval; 2843 mtx_unlock(&lun->lun_lock); 2844 2845 sync_info->status = CTL_GS_SYNC_OK; 2846 2847 break; 2848 } 2849 case CTL_GETSTATS: { 2850 struct ctl_stats *stats; 2851 struct ctl_lun *lun; 2852 int i; 2853 2854 stats = (struct ctl_stats *)addr; 2855 2856 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2857 stats->alloc_len) { 2858 stats->status = CTL_SS_NEED_MORE_SPACE; 2859 stats->num_luns = softc->num_luns; 2860 break; 2861 } 2862 /* 2863 * XXX KDM no locking here. If the LUN list changes, 2864 * things can blow up. 2865 */ 2866 for (i = 0, lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; 2867 i++, lun = STAILQ_NEXT(lun, links)) { 2868 retval = copyout(&lun->stats, &stats->lun_stats[i], 2869 sizeof(lun->stats)); 2870 if (retval != 0) 2871 break; 2872 } 2873 stats->num_luns = softc->num_luns; 2874 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2875 softc->num_luns; 2876 stats->status = CTL_SS_OK; 2877 #ifdef CTL_TIME_IO 2878 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2879 #else 2880 stats->flags = CTL_STATS_FLAG_NONE; 2881 #endif 2882 getnanouptime(&stats->timestamp); 2883 break; 2884 } 2885 case CTL_ERROR_INJECT: { 2886 struct ctl_error_desc *err_desc, *new_err_desc; 2887 struct ctl_lun *lun; 2888 2889 err_desc = (struct ctl_error_desc *)addr; 2890 2891 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2892 M_WAITOK | M_ZERO); 2893 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2894 2895 mtx_lock(&softc->ctl_lock); 2896 lun = softc->ctl_luns[err_desc->lun_id]; 2897 if (lun == NULL) { 2898 mtx_unlock(&softc->ctl_lock); 2899 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2900 __func__, (uintmax_t)err_desc->lun_id); 2901 retval = EINVAL; 2902 break; 2903 } 2904 mtx_lock(&lun->lun_lock); 2905 mtx_unlock(&softc->ctl_lock); 2906 2907 /* 2908 * We could do some checking here to verify the validity 2909 * of the request, but given the complexity of error 2910 * injection requests, the checking logic would be fairly 2911 * complex. 2912 * 2913 * For now, if the request is invalid, it just won't get 2914 * executed and might get deleted. 2915 */ 2916 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2917 2918 /* 2919 * XXX KDM check to make sure the serial number is unique, 2920 * in case we somehow manage to wrap. That shouldn't 2921 * happen for a very long time, but it's the right thing to 2922 * do. 2923 */ 2924 new_err_desc->serial = lun->error_serial; 2925 err_desc->serial = lun->error_serial; 2926 lun->error_serial++; 2927 2928 mtx_unlock(&lun->lun_lock); 2929 break; 2930 } 2931 case CTL_ERROR_INJECT_DELETE: { 2932 struct ctl_error_desc *delete_desc, *desc, *desc2; 2933 struct ctl_lun *lun; 2934 int delete_done; 2935 2936 delete_desc = (struct ctl_error_desc *)addr; 2937 delete_done = 0; 2938 2939 mtx_lock(&softc->ctl_lock); 2940 lun = softc->ctl_luns[delete_desc->lun_id]; 2941 if (lun == NULL) { 2942 mtx_unlock(&softc->ctl_lock); 2943 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 2944 __func__, (uintmax_t)delete_desc->lun_id); 2945 retval = EINVAL; 2946 break; 2947 } 2948 mtx_lock(&lun->lun_lock); 2949 mtx_unlock(&softc->ctl_lock); 2950 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 2951 if (desc->serial != delete_desc->serial) 2952 continue; 2953 2954 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 2955 links); 2956 free(desc, M_CTL); 2957 delete_done = 1; 2958 } 2959 mtx_unlock(&lun->lun_lock); 2960 if (delete_done == 0) { 2961 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 2962 "error serial %ju on LUN %u\n", __func__, 2963 delete_desc->serial, delete_desc->lun_id); 2964 retval = EINVAL; 2965 break; 2966 } 2967 break; 2968 } 2969 case CTL_DUMP_STRUCTS: { 2970 int i, j, k, idx; 2971 struct ctl_port *port; 2972 struct ctl_frontend *fe; 2973 2974 mtx_lock(&softc->ctl_lock); 2975 printf("CTL Persistent Reservation information start:\n"); 2976 for (i = 0; i < CTL_MAX_LUNS; i++) { 2977 struct ctl_lun *lun; 2978 2979 lun = softc->ctl_luns[i]; 2980 2981 if ((lun == NULL) 2982 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 2983 continue; 2984 2985 for (j = 0; j < (CTL_MAX_PORTS * 2); j++) { 2986 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 2987 idx = j * CTL_MAX_INIT_PER_PORT + k; 2988 if (lun->per_res[idx].registered == 0) 2989 continue; 2990 printf(" LUN %d port %d iid %d key " 2991 "%#jx\n", i, j, k, 2992 (uintmax_t)scsi_8btou64( 2993 lun->per_res[idx].res_key.key)); 2994 } 2995 } 2996 } 2997 printf("CTL Persistent Reservation information end\n"); 2998 printf("CTL Ports:\n"); 2999 STAILQ_FOREACH(port, &softc->port_list, links) { 3000 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 3001 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 3002 port->frontend->name, port->port_type, 3003 port->physical_port, port->virtual_port, 3004 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 3005 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3006 if (port->wwpn_iid[j].in_use == 0 && 3007 port->wwpn_iid[j].wwpn == 0 && 3008 port->wwpn_iid[j].name == NULL) 3009 continue; 3010 3011 printf(" iid %u use %d WWPN %#jx '%s'\n", 3012 j, port->wwpn_iid[j].in_use, 3013 (uintmax_t)port->wwpn_iid[j].wwpn, 3014 port->wwpn_iid[j].name); 3015 } 3016 } 3017 printf("CTL Port information end\n"); 3018 mtx_unlock(&softc->ctl_lock); 3019 /* 3020 * XXX KDM calling this without a lock. We'd likely want 3021 * to drop the lock before calling the frontend's dump 3022 * routine anyway. 3023 */ 3024 printf("CTL Frontends:\n"); 3025 STAILQ_FOREACH(fe, &softc->fe_list, links) { 3026 printf(" Frontend '%s'\n", fe->name); 3027 if (fe->fe_dump != NULL) 3028 fe->fe_dump(); 3029 } 3030 printf("CTL Frontend information end\n"); 3031 break; 3032 } 3033 case CTL_LUN_REQ: { 3034 struct ctl_lun_req *lun_req; 3035 struct ctl_backend_driver *backend; 3036 3037 lun_req = (struct ctl_lun_req *)addr; 3038 3039 backend = ctl_backend_find(lun_req->backend); 3040 if (backend == NULL) { 3041 lun_req->status = CTL_LUN_ERROR; 3042 snprintf(lun_req->error_str, 3043 sizeof(lun_req->error_str), 3044 "Backend \"%s\" not found.", 3045 lun_req->backend); 3046 break; 3047 } 3048 if (lun_req->num_be_args > 0) { 3049 lun_req->kern_be_args = ctl_copyin_args( 3050 lun_req->num_be_args, 3051 lun_req->be_args, 3052 lun_req->error_str, 3053 sizeof(lun_req->error_str)); 3054 if (lun_req->kern_be_args == NULL) { 3055 lun_req->status = CTL_LUN_ERROR; 3056 break; 3057 } 3058 } 3059 3060 retval = backend->ioctl(dev, cmd, addr, flag, td); 3061 3062 if (lun_req->num_be_args > 0) { 3063 ctl_copyout_args(lun_req->num_be_args, 3064 lun_req->kern_be_args); 3065 ctl_free_args(lun_req->num_be_args, 3066 lun_req->kern_be_args); 3067 } 3068 break; 3069 } 3070 case CTL_LUN_LIST: { 3071 struct sbuf *sb; 3072 struct ctl_lun *lun; 3073 struct ctl_lun_list *list; 3074 struct ctl_option *opt; 3075 3076 list = (struct ctl_lun_list *)addr; 3077 3078 /* 3079 * Allocate a fixed length sbuf here, based on the length 3080 * of the user's buffer. We could allocate an auto-extending 3081 * buffer, and then tell the user how much larger our 3082 * amount of data is than his buffer, but that presents 3083 * some problems: 3084 * 3085 * 1. The sbuf(9) routines use a blocking malloc, and so 3086 * we can't hold a lock while calling them with an 3087 * auto-extending buffer. 3088 * 3089 * 2. There is not currently a LUN reference counting 3090 * mechanism, outside of outstanding transactions on 3091 * the LUN's OOA queue. So a LUN could go away on us 3092 * while we're getting the LUN number, backend-specific 3093 * information, etc. Thus, given the way things 3094 * currently work, we need to hold the CTL lock while 3095 * grabbing LUN information. 3096 * 3097 * So, from the user's standpoint, the best thing to do is 3098 * allocate what he thinks is a reasonable buffer length, 3099 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3100 * double the buffer length and try again. (And repeat 3101 * that until he succeeds.) 3102 */ 3103 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3104 if (sb == NULL) { 3105 list->status = CTL_LUN_LIST_ERROR; 3106 snprintf(list->error_str, sizeof(list->error_str), 3107 "Unable to allocate %d bytes for LUN list", 3108 list->alloc_len); 3109 break; 3110 } 3111 3112 sbuf_printf(sb, "<ctllunlist>\n"); 3113 3114 mtx_lock(&softc->ctl_lock); 3115 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3116 mtx_lock(&lun->lun_lock); 3117 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3118 (uintmax_t)lun->lun); 3119 3120 /* 3121 * Bail out as soon as we see that we've overfilled 3122 * the buffer. 3123 */ 3124 if (retval != 0) 3125 break; 3126 3127 retval = sbuf_printf(sb, "\t<backend_type>%s" 3128 "</backend_type>\n", 3129 (lun->backend == NULL) ? "none" : 3130 lun->backend->name); 3131 3132 if (retval != 0) 3133 break; 3134 3135 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3136 lun->be_lun->lun_type); 3137 3138 if (retval != 0) 3139 break; 3140 3141 if (lun->backend == NULL) { 3142 retval = sbuf_printf(sb, "</lun>\n"); 3143 if (retval != 0) 3144 break; 3145 continue; 3146 } 3147 3148 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3149 (lun->be_lun->maxlba > 0) ? 3150 lun->be_lun->maxlba + 1 : 0); 3151 3152 if (retval != 0) 3153 break; 3154 3155 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3156 lun->be_lun->blocksize); 3157 3158 if (retval != 0) 3159 break; 3160 3161 retval = sbuf_printf(sb, "\t<serial_number>"); 3162 3163 if (retval != 0) 3164 break; 3165 3166 retval = ctl_sbuf_printf_esc(sb, 3167 lun->be_lun->serial_num); 3168 3169 if (retval != 0) 3170 break; 3171 3172 retval = sbuf_printf(sb, "</serial_number>\n"); 3173 3174 if (retval != 0) 3175 break; 3176 3177 retval = sbuf_printf(sb, "\t<device_id>"); 3178 3179 if (retval != 0) 3180 break; 3181 3182 retval = ctl_sbuf_printf_esc(sb,lun->be_lun->device_id); 3183 3184 if (retval != 0) 3185 break; 3186 3187 retval = sbuf_printf(sb, "</device_id>\n"); 3188 3189 if (retval != 0) 3190 break; 3191 3192 if (lun->backend->lun_info != NULL) { 3193 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3194 if (retval != 0) 3195 break; 3196 } 3197 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3198 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3199 opt->name, opt->value, opt->name); 3200 if (retval != 0) 3201 break; 3202 } 3203 3204 retval = sbuf_printf(sb, "</lun>\n"); 3205 3206 if (retval != 0) 3207 break; 3208 mtx_unlock(&lun->lun_lock); 3209 } 3210 if (lun != NULL) 3211 mtx_unlock(&lun->lun_lock); 3212 mtx_unlock(&softc->ctl_lock); 3213 3214 if ((retval != 0) 3215 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3216 retval = 0; 3217 sbuf_delete(sb); 3218 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3219 snprintf(list->error_str, sizeof(list->error_str), 3220 "Out of space, %d bytes is too small", 3221 list->alloc_len); 3222 break; 3223 } 3224 3225 sbuf_finish(sb); 3226 3227 retval = copyout(sbuf_data(sb), list->lun_xml, 3228 sbuf_len(sb) + 1); 3229 3230 list->fill_len = sbuf_len(sb) + 1; 3231 list->status = CTL_LUN_LIST_OK; 3232 sbuf_delete(sb); 3233 break; 3234 } 3235 case CTL_ISCSI: { 3236 struct ctl_iscsi *ci; 3237 struct ctl_frontend *fe; 3238 3239 ci = (struct ctl_iscsi *)addr; 3240 3241 fe = ctl_frontend_find("iscsi"); 3242 if (fe == NULL) { 3243 ci->status = CTL_ISCSI_ERROR; 3244 snprintf(ci->error_str, sizeof(ci->error_str), 3245 "Frontend \"iscsi\" not found."); 3246 break; 3247 } 3248 3249 retval = fe->ioctl(dev, cmd, addr, flag, td); 3250 break; 3251 } 3252 case CTL_PORT_REQ: { 3253 struct ctl_req *req; 3254 struct ctl_frontend *fe; 3255 3256 req = (struct ctl_req *)addr; 3257 3258 fe = ctl_frontend_find(req->driver); 3259 if (fe == NULL) { 3260 req->status = CTL_LUN_ERROR; 3261 snprintf(req->error_str, sizeof(req->error_str), 3262 "Frontend \"%s\" not found.", req->driver); 3263 break; 3264 } 3265 if (req->num_args > 0) { 3266 req->kern_args = ctl_copyin_args(req->num_args, 3267 req->args, req->error_str, sizeof(req->error_str)); 3268 if (req->kern_args == NULL) { 3269 req->status = CTL_LUN_ERROR; 3270 break; 3271 } 3272 } 3273 3274 retval = fe->ioctl(dev, cmd, addr, flag, td); 3275 3276 if (req->num_args > 0) { 3277 ctl_copyout_args(req->num_args, req->kern_args); 3278 ctl_free_args(req->num_args, req->kern_args); 3279 } 3280 break; 3281 } 3282 case CTL_PORT_LIST: { 3283 struct sbuf *sb; 3284 struct ctl_port *port; 3285 struct ctl_lun_list *list; 3286 struct ctl_option *opt; 3287 3288 list = (struct ctl_lun_list *)addr; 3289 3290 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3291 if (sb == NULL) { 3292 list->status = CTL_LUN_LIST_ERROR; 3293 snprintf(list->error_str, sizeof(list->error_str), 3294 "Unable to allocate %d bytes for LUN list", 3295 list->alloc_len); 3296 break; 3297 } 3298 3299 sbuf_printf(sb, "<ctlportlist>\n"); 3300 3301 mtx_lock(&softc->ctl_lock); 3302 STAILQ_FOREACH(port, &softc->port_list, links) { 3303 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3304 (uintmax_t)port->targ_port); 3305 3306 /* 3307 * Bail out as soon as we see that we've overfilled 3308 * the buffer. 3309 */ 3310 if (retval != 0) 3311 break; 3312 3313 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3314 "</frontend_type>\n", port->frontend->name); 3315 if (retval != 0) 3316 break; 3317 3318 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3319 port->port_type); 3320 if (retval != 0) 3321 break; 3322 3323 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3324 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3325 if (retval != 0) 3326 break; 3327 3328 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3329 port->port_name); 3330 if (retval != 0) 3331 break; 3332 3333 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3334 port->physical_port); 3335 if (retval != 0) 3336 break; 3337 3338 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3339 port->virtual_port); 3340 if (retval != 0) 3341 break; 3342 3343 retval = sbuf_printf(sb, "\t<wwnn>%#jx</wwnn>\n", 3344 (uintmax_t)port->wwnn); 3345 if (retval != 0) 3346 break; 3347 3348 retval = sbuf_printf(sb, "\t<wwpn>%#jx</wwpn>\n", 3349 (uintmax_t)port->wwpn); 3350 if (retval != 0) 3351 break; 3352 3353 if (port->port_info != NULL) { 3354 retval = port->port_info(port->onoff_arg, sb); 3355 if (retval != 0) 3356 break; 3357 } 3358 STAILQ_FOREACH(opt, &port->options, links) { 3359 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3360 opt->name, opt->value, opt->name); 3361 if (retval != 0) 3362 break; 3363 } 3364 3365 retval = sbuf_printf(sb, "</targ_port>\n"); 3366 if (retval != 0) 3367 break; 3368 } 3369 mtx_unlock(&softc->ctl_lock); 3370 3371 if ((retval != 0) 3372 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3373 retval = 0; 3374 sbuf_delete(sb); 3375 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3376 snprintf(list->error_str, sizeof(list->error_str), 3377 "Out of space, %d bytes is too small", 3378 list->alloc_len); 3379 break; 3380 } 3381 3382 sbuf_finish(sb); 3383 3384 retval = copyout(sbuf_data(sb), list->lun_xml, 3385 sbuf_len(sb) + 1); 3386 3387 list->fill_len = sbuf_len(sb) + 1; 3388 list->status = CTL_LUN_LIST_OK; 3389 sbuf_delete(sb); 3390 break; 3391 } 3392 default: { 3393 /* XXX KDM should we fix this? */ 3394 #if 0 3395 struct ctl_backend_driver *backend; 3396 unsigned int type; 3397 int found; 3398 3399 found = 0; 3400 3401 /* 3402 * We encode the backend type as the ioctl type for backend 3403 * ioctls. So parse it out here, and then search for a 3404 * backend of this type. 3405 */ 3406 type = _IOC_TYPE(cmd); 3407 3408 STAILQ_FOREACH(backend, &softc->be_list, links) { 3409 if (backend->type == type) { 3410 found = 1; 3411 break; 3412 } 3413 } 3414 if (found == 0) { 3415 printf("ctl: unknown ioctl command %#lx or backend " 3416 "%d\n", cmd, type); 3417 retval = EINVAL; 3418 break; 3419 } 3420 retval = backend->ioctl(dev, cmd, addr, flag, td); 3421 #endif 3422 retval = ENOTTY; 3423 break; 3424 } 3425 } 3426 return (retval); 3427 } 3428 3429 uint32_t 3430 ctl_get_initindex(struct ctl_nexus *nexus) 3431 { 3432 if (nexus->targ_port < CTL_MAX_PORTS) 3433 return (nexus->initid.id + 3434 (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3435 else 3436 return (nexus->initid.id + 3437 ((nexus->targ_port - CTL_MAX_PORTS) * 3438 CTL_MAX_INIT_PER_PORT)); 3439 } 3440 3441 uint32_t 3442 ctl_get_resindex(struct ctl_nexus *nexus) 3443 { 3444 return (nexus->initid.id + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3445 } 3446 3447 uint32_t 3448 ctl_port_idx(int port_num) 3449 { 3450 if (port_num < CTL_MAX_PORTS) 3451 return(port_num); 3452 else 3453 return(port_num - CTL_MAX_PORTS); 3454 } 3455 3456 static uint32_t 3457 ctl_map_lun(int port_num, uint32_t lun_id) 3458 { 3459 struct ctl_port *port; 3460 3461 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3462 if (port == NULL) 3463 return (UINT32_MAX); 3464 if (port->lun_map == NULL) 3465 return (lun_id); 3466 return (port->lun_map(port->targ_lun_arg, lun_id)); 3467 } 3468 3469 static uint32_t 3470 ctl_map_lun_back(int port_num, uint32_t lun_id) 3471 { 3472 struct ctl_port *port; 3473 uint32_t i; 3474 3475 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3476 if (port->lun_map == NULL) 3477 return (lun_id); 3478 for (i = 0; i < CTL_MAX_LUNS; i++) { 3479 if (port->lun_map(port->targ_lun_arg, i) == lun_id) 3480 return (i); 3481 } 3482 return (UINT32_MAX); 3483 } 3484 3485 /* 3486 * Note: This only works for bitmask sizes that are at least 32 bits, and 3487 * that are a power of 2. 3488 */ 3489 int 3490 ctl_ffz(uint32_t *mask, uint32_t size) 3491 { 3492 uint32_t num_chunks, num_pieces; 3493 int i, j; 3494 3495 num_chunks = (size >> 5); 3496 if (num_chunks == 0) 3497 num_chunks++; 3498 num_pieces = ctl_min((sizeof(uint32_t) * 8), size); 3499 3500 for (i = 0; i < num_chunks; i++) { 3501 for (j = 0; j < num_pieces; j++) { 3502 if ((mask[i] & (1 << j)) == 0) 3503 return ((i << 5) + j); 3504 } 3505 } 3506 3507 return (-1); 3508 } 3509 3510 int 3511 ctl_set_mask(uint32_t *mask, uint32_t bit) 3512 { 3513 uint32_t chunk, piece; 3514 3515 chunk = bit >> 5; 3516 piece = bit % (sizeof(uint32_t) * 8); 3517 3518 if ((mask[chunk] & (1 << piece)) != 0) 3519 return (-1); 3520 else 3521 mask[chunk] |= (1 << piece); 3522 3523 return (0); 3524 } 3525 3526 int 3527 ctl_clear_mask(uint32_t *mask, uint32_t bit) 3528 { 3529 uint32_t chunk, piece; 3530 3531 chunk = bit >> 5; 3532 piece = bit % (sizeof(uint32_t) * 8); 3533 3534 if ((mask[chunk] & (1 << piece)) == 0) 3535 return (-1); 3536 else 3537 mask[chunk] &= ~(1 << piece); 3538 3539 return (0); 3540 } 3541 3542 int 3543 ctl_is_set(uint32_t *mask, uint32_t bit) 3544 { 3545 uint32_t chunk, piece; 3546 3547 chunk = bit >> 5; 3548 piece = bit % (sizeof(uint32_t) * 8); 3549 3550 if ((mask[chunk] & (1 << piece)) == 0) 3551 return (0); 3552 else 3553 return (1); 3554 } 3555 3556 #ifdef unused 3557 /* 3558 * The bus, target and lun are optional, they can be filled in later. 3559 * can_wait is used to determine whether we can wait on the malloc or not. 3560 */ 3561 union ctl_io* 3562 ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, uint32_t targ_target, 3563 uint32_t targ_lun, int can_wait) 3564 { 3565 union ctl_io *io; 3566 3567 if (can_wait) 3568 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_WAITOK); 3569 else 3570 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_NOWAIT); 3571 3572 if (io != NULL) { 3573 io->io_hdr.io_type = io_type; 3574 io->io_hdr.targ_port = targ_port; 3575 /* 3576 * XXX KDM this needs to change/go away. We need to move 3577 * to a preallocated pool of ctl_scsiio structures. 3578 */ 3579 io->io_hdr.nexus.targ_target.id = targ_target; 3580 io->io_hdr.nexus.targ_lun = targ_lun; 3581 } 3582 3583 return (io); 3584 } 3585 3586 void 3587 ctl_kfree_io(union ctl_io *io) 3588 { 3589 free(io, M_CTL); 3590 } 3591 #endif /* unused */ 3592 3593 /* 3594 * ctl_softc, pool_type, total_ctl_io are passed in. 3595 * npool is passed out. 3596 */ 3597 int 3598 ctl_pool_create(struct ctl_softc *ctl_softc, ctl_pool_type pool_type, 3599 uint32_t total_ctl_io, struct ctl_io_pool **npool) 3600 { 3601 uint32_t i; 3602 union ctl_io *cur_io, *next_io; 3603 struct ctl_io_pool *pool; 3604 int retval; 3605 3606 retval = 0; 3607 3608 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3609 M_NOWAIT | M_ZERO); 3610 if (pool == NULL) { 3611 retval = ENOMEM; 3612 goto bailout; 3613 } 3614 3615 pool->type = pool_type; 3616 pool->ctl_softc = ctl_softc; 3617 3618 mtx_lock(&ctl_softc->pool_lock); 3619 pool->id = ctl_softc->cur_pool_id++; 3620 mtx_unlock(&ctl_softc->pool_lock); 3621 3622 pool->flags = CTL_POOL_FLAG_NONE; 3623 pool->refcount = 1; /* Reference for validity. */ 3624 STAILQ_INIT(&pool->free_queue); 3625 3626 /* 3627 * XXX KDM other options here: 3628 * - allocate a page at a time 3629 * - allocate one big chunk of memory. 3630 * Page allocation might work well, but would take a little more 3631 * tracking. 3632 */ 3633 for (i = 0; i < total_ctl_io; i++) { 3634 cur_io = (union ctl_io *)malloc(sizeof(*cur_io), M_CTLIO, 3635 M_NOWAIT); 3636 if (cur_io == NULL) { 3637 retval = ENOMEM; 3638 break; 3639 } 3640 cur_io->io_hdr.pool = pool; 3641 STAILQ_INSERT_TAIL(&pool->free_queue, &cur_io->io_hdr, links); 3642 pool->total_ctl_io++; 3643 pool->free_ctl_io++; 3644 } 3645 3646 if (retval != 0) { 3647 for (cur_io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3648 cur_io != NULL; cur_io = next_io) { 3649 next_io = (union ctl_io *)STAILQ_NEXT(&cur_io->io_hdr, 3650 links); 3651 STAILQ_REMOVE(&pool->free_queue, &cur_io->io_hdr, 3652 ctl_io_hdr, links); 3653 free(cur_io, M_CTLIO); 3654 } 3655 3656 free(pool, M_CTL); 3657 goto bailout; 3658 } 3659 mtx_lock(&ctl_softc->pool_lock); 3660 ctl_softc->num_pools++; 3661 STAILQ_INSERT_TAIL(&ctl_softc->io_pools, pool, links); 3662 /* 3663 * Increment our usage count if this is an external consumer, so we 3664 * can't get unloaded until the external consumer (most likely a 3665 * FETD) unloads and frees his pool. 3666 * 3667 * XXX KDM will this increment the caller's module use count, or 3668 * mine? 3669 */ 3670 #if 0 3671 if ((pool_type != CTL_POOL_EMERGENCY) 3672 && (pool_type != CTL_POOL_INTERNAL) 3673 && (pool_type != CTL_POOL_4OTHERSC)) 3674 MOD_INC_USE_COUNT; 3675 #endif 3676 3677 mtx_unlock(&ctl_softc->pool_lock); 3678 3679 *npool = pool; 3680 3681 bailout: 3682 3683 return (retval); 3684 } 3685 3686 static int 3687 ctl_pool_acquire(struct ctl_io_pool *pool) 3688 { 3689 3690 mtx_assert(&pool->ctl_softc->pool_lock, MA_OWNED); 3691 3692 if (pool->flags & CTL_POOL_FLAG_INVALID) 3693 return (EINVAL); 3694 3695 pool->refcount++; 3696 3697 return (0); 3698 } 3699 3700 static void 3701 ctl_pool_release(struct ctl_io_pool *pool) 3702 { 3703 struct ctl_softc *ctl_softc = pool->ctl_softc; 3704 union ctl_io *io; 3705 3706 mtx_assert(&ctl_softc->pool_lock, MA_OWNED); 3707 3708 if (--pool->refcount != 0) 3709 return; 3710 3711 while ((io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue)) != NULL) { 3712 STAILQ_REMOVE(&pool->free_queue, &io->io_hdr, ctl_io_hdr, 3713 links); 3714 free(io, M_CTLIO); 3715 } 3716 3717 STAILQ_REMOVE(&ctl_softc->io_pools, pool, ctl_io_pool, links); 3718 ctl_softc->num_pools--; 3719 3720 /* 3721 * XXX KDM will this decrement the caller's usage count or mine? 3722 */ 3723 #if 0 3724 if ((pool->type != CTL_POOL_EMERGENCY) 3725 && (pool->type != CTL_POOL_INTERNAL) 3726 && (pool->type != CTL_POOL_4OTHERSC)) 3727 MOD_DEC_USE_COUNT; 3728 #endif 3729 3730 free(pool, M_CTL); 3731 } 3732 3733 void 3734 ctl_pool_free(struct ctl_io_pool *pool) 3735 { 3736 struct ctl_softc *ctl_softc; 3737 3738 if (pool == NULL) 3739 return; 3740 3741 ctl_softc = pool->ctl_softc; 3742 mtx_lock(&ctl_softc->pool_lock); 3743 pool->flags |= CTL_POOL_FLAG_INVALID; 3744 ctl_pool_release(pool); 3745 mtx_unlock(&ctl_softc->pool_lock); 3746 } 3747 3748 /* 3749 * This routine does not block (except for spinlocks of course). 3750 * It tries to allocate a ctl_io union from the caller's pool as quickly as 3751 * possible. 3752 */ 3753 union ctl_io * 3754 ctl_alloc_io(void *pool_ref) 3755 { 3756 union ctl_io *io; 3757 struct ctl_softc *ctl_softc; 3758 struct ctl_io_pool *pool, *npool; 3759 struct ctl_io_pool *emergency_pool; 3760 3761 pool = (struct ctl_io_pool *)pool_ref; 3762 3763 if (pool == NULL) { 3764 printf("%s: pool is NULL\n", __func__); 3765 return (NULL); 3766 } 3767 3768 emergency_pool = NULL; 3769 3770 ctl_softc = pool->ctl_softc; 3771 3772 mtx_lock(&ctl_softc->pool_lock); 3773 /* 3774 * First, try to get the io structure from the user's pool. 3775 */ 3776 if (ctl_pool_acquire(pool) == 0) { 3777 io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3778 if (io != NULL) { 3779 STAILQ_REMOVE_HEAD(&pool->free_queue, links); 3780 pool->total_allocated++; 3781 pool->free_ctl_io--; 3782 mtx_unlock(&ctl_softc->pool_lock); 3783 return (io); 3784 } else 3785 ctl_pool_release(pool); 3786 } 3787 /* 3788 * If he doesn't have any io structures left, search for an 3789 * emergency pool and grab one from there. 3790 */ 3791 STAILQ_FOREACH(npool, &ctl_softc->io_pools, links) { 3792 if (npool->type != CTL_POOL_EMERGENCY) 3793 continue; 3794 3795 if (ctl_pool_acquire(npool) != 0) 3796 continue; 3797 3798 emergency_pool = npool; 3799 3800 io = (union ctl_io *)STAILQ_FIRST(&npool->free_queue); 3801 if (io != NULL) { 3802 STAILQ_REMOVE_HEAD(&npool->free_queue, links); 3803 npool->total_allocated++; 3804 npool->free_ctl_io--; 3805 mtx_unlock(&ctl_softc->pool_lock); 3806 return (io); 3807 } else 3808 ctl_pool_release(npool); 3809 } 3810 3811 /* Drop the spinlock before we malloc */ 3812 mtx_unlock(&ctl_softc->pool_lock); 3813 3814 /* 3815 * The emergency pool (if it exists) didn't have one, so try an 3816 * atomic (i.e. nonblocking) malloc and see if we get lucky. 3817 */ 3818 io = (union ctl_io *)malloc(sizeof(*io), M_CTLIO, M_NOWAIT); 3819 if (io != NULL) { 3820 /* 3821 * If the emergency pool exists but is empty, add this 3822 * ctl_io to its list when it gets freed. 3823 */ 3824 if (emergency_pool != NULL) { 3825 mtx_lock(&ctl_softc->pool_lock); 3826 if (ctl_pool_acquire(emergency_pool) == 0) { 3827 io->io_hdr.pool = emergency_pool; 3828 emergency_pool->total_ctl_io++; 3829 /* 3830 * Need to bump this, otherwise 3831 * total_allocated and total_freed won't 3832 * match when we no longer have anything 3833 * outstanding. 3834 */ 3835 emergency_pool->total_allocated++; 3836 } 3837 mtx_unlock(&ctl_softc->pool_lock); 3838 } else 3839 io->io_hdr.pool = NULL; 3840 } 3841 3842 return (io); 3843 } 3844 3845 void 3846 ctl_free_io(union ctl_io *io) 3847 { 3848 if (io == NULL) 3849 return; 3850 3851 /* 3852 * If this ctl_io has a pool, return it to that pool. 3853 */ 3854 if (io->io_hdr.pool != NULL) { 3855 struct ctl_io_pool *pool; 3856 3857 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3858 mtx_lock(&pool->ctl_softc->pool_lock); 3859 io->io_hdr.io_type = 0xff; 3860 STAILQ_INSERT_TAIL(&pool->free_queue, &io->io_hdr, links); 3861 pool->total_freed++; 3862 pool->free_ctl_io++; 3863 ctl_pool_release(pool); 3864 mtx_unlock(&pool->ctl_softc->pool_lock); 3865 } else { 3866 /* 3867 * Otherwise, just free it. We probably malloced it and 3868 * the emergency pool wasn't available. 3869 */ 3870 free(io, M_CTLIO); 3871 } 3872 3873 } 3874 3875 void 3876 ctl_zero_io(union ctl_io *io) 3877 { 3878 void *pool_ref; 3879 3880 if (io == NULL) 3881 return; 3882 3883 /* 3884 * May need to preserve linked list pointers at some point too. 3885 */ 3886 pool_ref = io->io_hdr.pool; 3887 3888 memset(io, 0, sizeof(*io)); 3889 3890 io->io_hdr.pool = pool_ref; 3891 } 3892 3893 /* 3894 * This routine is currently used for internal copies of ctl_ios that need 3895 * to persist for some reason after we've already returned status to the 3896 * FETD. (Thus the flag set.) 3897 * 3898 * XXX XXX 3899 * Note that this makes a blind copy of all fields in the ctl_io, except 3900 * for the pool reference. This includes any memory that has been 3901 * allocated! That memory will no longer be valid after done has been 3902 * called, so this would be VERY DANGEROUS for command that actually does 3903 * any reads or writes. Right now (11/7/2005), this is only used for immediate 3904 * start and stop commands, which don't transfer any data, so this is not a 3905 * problem. If it is used for anything else, the caller would also need to 3906 * allocate data buffer space and this routine would need to be modified to 3907 * copy the data buffer(s) as well. 3908 */ 3909 void 3910 ctl_copy_io(union ctl_io *src, union ctl_io *dest) 3911 { 3912 void *pool_ref; 3913 3914 if ((src == NULL) 3915 || (dest == NULL)) 3916 return; 3917 3918 /* 3919 * May need to preserve linked list pointers at some point too. 3920 */ 3921 pool_ref = dest->io_hdr.pool; 3922 3923 memcpy(dest, src, ctl_min(sizeof(*src), sizeof(*dest))); 3924 3925 dest->io_hdr.pool = pool_ref; 3926 /* 3927 * We need to know that this is an internal copy, and doesn't need 3928 * to get passed back to the FETD that allocated it. 3929 */ 3930 dest->io_hdr.flags |= CTL_FLAG_INT_COPY; 3931 } 3932 3933 #ifdef NEEDTOPORT 3934 static void 3935 ctl_update_power_subpage(struct copan_power_subpage *page) 3936 { 3937 int num_luns, num_partitions, config_type; 3938 struct ctl_softc *softc; 3939 cs_BOOL_t aor_present, shelf_50pct_power; 3940 cs_raidset_personality_t rs_type; 3941 int max_active_luns; 3942 3943 softc = control_softc; 3944 3945 /* subtract out the processor LUN */ 3946 num_luns = softc->num_luns - 1; 3947 /* 3948 * Default to 7 LUNs active, which was the only number we allowed 3949 * in the past. 3950 */ 3951 max_active_luns = 7; 3952 3953 num_partitions = config_GetRsPartitionInfo(); 3954 config_type = config_GetConfigType(); 3955 shelf_50pct_power = config_GetShelfPowerMode(); 3956 aor_present = config_IsAorRsPresent(); 3957 3958 rs_type = ddb_GetRsRaidType(1); 3959 if ((rs_type != CS_RAIDSET_PERSONALITY_RAID5) 3960 && (rs_type != CS_RAIDSET_PERSONALITY_RAID1)) { 3961 EPRINT(0, "Unsupported RS type %d!", rs_type); 3962 } 3963 3964 3965 page->total_luns = num_luns; 3966 3967 switch (config_type) { 3968 case 40: 3969 /* 3970 * In a 40 drive configuration, it doesn't matter what DC 3971 * cards we have, whether we have AOR enabled or not, 3972 * partitioning or not, or what type of RAIDset we have. 3973 * In that scenario, we can power up every LUN we present 3974 * to the user. 3975 */ 3976 max_active_luns = num_luns; 3977 3978 break; 3979 case 64: 3980 if (shelf_50pct_power == CS_FALSE) { 3981 /* 25% power */ 3982 if (aor_present == CS_TRUE) { 3983 if (rs_type == 3984 CS_RAIDSET_PERSONALITY_RAID5) { 3985 max_active_luns = 7; 3986 } else if (rs_type == 3987 CS_RAIDSET_PERSONALITY_RAID1){ 3988 max_active_luns = 14; 3989 } else { 3990 /* XXX KDM now what?? */ 3991 } 3992 } else { 3993 if (rs_type == 3994 CS_RAIDSET_PERSONALITY_RAID5) { 3995 max_active_luns = 8; 3996 } else if (rs_type == 3997 CS_RAIDSET_PERSONALITY_RAID1){ 3998 max_active_luns = 16; 3999 } else { 4000 /* XXX KDM now what?? */ 4001 } 4002 } 4003 } else { 4004 /* 50% power */ 4005 /* 4006 * With 50% power in a 64 drive configuration, we 4007 * can power all LUNs we present. 4008 */ 4009 max_active_luns = num_luns; 4010 } 4011 break; 4012 case 112: 4013 if (shelf_50pct_power == CS_FALSE) { 4014 /* 25% power */ 4015 if (aor_present == CS_TRUE) { 4016 if (rs_type == 4017 CS_RAIDSET_PERSONALITY_RAID5) { 4018 max_active_luns = 7; 4019 } else if (rs_type == 4020 CS_RAIDSET_PERSONALITY_RAID1){ 4021 max_active_luns = 14; 4022 } else { 4023 /* XXX KDM now what?? */ 4024 } 4025 } else { 4026 if (rs_type == 4027 CS_RAIDSET_PERSONALITY_RAID5) { 4028 max_active_luns = 8; 4029 } else if (rs_type == 4030 CS_RAIDSET_PERSONALITY_RAID1){ 4031 max_active_luns = 16; 4032 } else { 4033 /* XXX KDM now what?? */ 4034 } 4035 } 4036 } else { 4037 /* 50% power */ 4038 if (aor_present == CS_TRUE) { 4039 if (rs_type == 4040 CS_RAIDSET_PERSONALITY_RAID5) { 4041 max_active_luns = 14; 4042 } else if (rs_type == 4043 CS_RAIDSET_PERSONALITY_RAID1){ 4044 /* 4045 * We're assuming here that disk 4046 * caching is enabled, and so we're 4047 * able to power up half of each 4048 * LUN, and cache all writes. 4049 */ 4050 max_active_luns = num_luns; 4051 } else { 4052 /* XXX KDM now what?? */ 4053 } 4054 } else { 4055 if (rs_type == 4056 CS_RAIDSET_PERSONALITY_RAID5) { 4057 max_active_luns = 15; 4058 } else if (rs_type == 4059 CS_RAIDSET_PERSONALITY_RAID1){ 4060 max_active_luns = 30; 4061 } else { 4062 /* XXX KDM now what?? */ 4063 } 4064 } 4065 } 4066 break; 4067 default: 4068 /* 4069 * In this case, we have an unknown configuration, so we 4070 * just use the default from above. 4071 */ 4072 break; 4073 } 4074 4075 page->max_active_luns = max_active_luns; 4076 #if 0 4077 printk("%s: total_luns = %d, max_active_luns = %d\n", __func__, 4078 page->total_luns, page->max_active_luns); 4079 #endif 4080 } 4081 #endif /* NEEDTOPORT */ 4082 4083 /* 4084 * This routine could be used in the future to load default and/or saved 4085 * mode page parameters for a particuar lun. 4086 */ 4087 static int 4088 ctl_init_page_index(struct ctl_lun *lun) 4089 { 4090 int i; 4091 struct ctl_page_index *page_index; 4092 struct ctl_softc *softc; 4093 4094 memcpy(&lun->mode_pages.index, page_index_template, 4095 sizeof(page_index_template)); 4096 4097 softc = lun->ctl_softc; 4098 4099 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 4100 4101 page_index = &lun->mode_pages.index[i]; 4102 /* 4103 * If this is a disk-only mode page, there's no point in 4104 * setting it up. For some pages, we have to have some 4105 * basic information about the disk in order to calculate the 4106 * mode page data. 4107 */ 4108 if ((lun->be_lun->lun_type != T_DIRECT) 4109 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 4110 continue; 4111 4112 switch (page_index->page_code & SMPH_PC_MASK) { 4113 case SMS_FORMAT_DEVICE_PAGE: { 4114 struct scsi_format_page *format_page; 4115 4116 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4117 panic("subpage is incorrect!"); 4118 4119 /* 4120 * Sectors per track are set above. Bytes per 4121 * sector need to be set here on a per-LUN basis. 4122 */ 4123 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 4124 &format_page_default, 4125 sizeof(format_page_default)); 4126 memcpy(&lun->mode_pages.format_page[ 4127 CTL_PAGE_CHANGEABLE], &format_page_changeable, 4128 sizeof(format_page_changeable)); 4129 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 4130 &format_page_default, 4131 sizeof(format_page_default)); 4132 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 4133 &format_page_default, 4134 sizeof(format_page_default)); 4135 4136 format_page = &lun->mode_pages.format_page[ 4137 CTL_PAGE_CURRENT]; 4138 scsi_ulto2b(lun->be_lun->blocksize, 4139 format_page->bytes_per_sector); 4140 4141 format_page = &lun->mode_pages.format_page[ 4142 CTL_PAGE_DEFAULT]; 4143 scsi_ulto2b(lun->be_lun->blocksize, 4144 format_page->bytes_per_sector); 4145 4146 format_page = &lun->mode_pages.format_page[ 4147 CTL_PAGE_SAVED]; 4148 scsi_ulto2b(lun->be_lun->blocksize, 4149 format_page->bytes_per_sector); 4150 4151 page_index->page_data = 4152 (uint8_t *)lun->mode_pages.format_page; 4153 break; 4154 } 4155 case SMS_RIGID_DISK_PAGE: { 4156 struct scsi_rigid_disk_page *rigid_disk_page; 4157 uint32_t sectors_per_cylinder; 4158 uint64_t cylinders; 4159 #ifndef __XSCALE__ 4160 int shift; 4161 #endif /* !__XSCALE__ */ 4162 4163 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4164 panic("invalid subpage value %d", 4165 page_index->subpage); 4166 4167 /* 4168 * Rotation rate and sectors per track are set 4169 * above. We calculate the cylinders here based on 4170 * capacity. Due to the number of heads and 4171 * sectors per track we're using, smaller arrays 4172 * may turn out to have 0 cylinders. Linux and 4173 * FreeBSD don't pay attention to these mode pages 4174 * to figure out capacity, but Solaris does. It 4175 * seems to deal with 0 cylinders just fine, and 4176 * works out a fake geometry based on the capacity. 4177 */ 4178 memcpy(&lun->mode_pages.rigid_disk_page[ 4179 CTL_PAGE_CURRENT], &rigid_disk_page_default, 4180 sizeof(rigid_disk_page_default)); 4181 memcpy(&lun->mode_pages.rigid_disk_page[ 4182 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4183 sizeof(rigid_disk_page_changeable)); 4184 memcpy(&lun->mode_pages.rigid_disk_page[ 4185 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 4186 sizeof(rigid_disk_page_default)); 4187 memcpy(&lun->mode_pages.rigid_disk_page[ 4188 CTL_PAGE_SAVED], &rigid_disk_page_default, 4189 sizeof(rigid_disk_page_default)); 4190 4191 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4192 CTL_DEFAULT_HEADS; 4193 4194 /* 4195 * The divide method here will be more accurate, 4196 * probably, but results in floating point being 4197 * used in the kernel on i386 (__udivdi3()). On the 4198 * XScale, though, __udivdi3() is implemented in 4199 * software. 4200 * 4201 * The shift method for cylinder calculation is 4202 * accurate if sectors_per_cylinder is a power of 4203 * 2. Otherwise it might be slightly off -- you 4204 * might have a bit of a truncation problem. 4205 */ 4206 #ifdef __XSCALE__ 4207 cylinders = (lun->be_lun->maxlba + 1) / 4208 sectors_per_cylinder; 4209 #else 4210 for (shift = 31; shift > 0; shift--) { 4211 if (sectors_per_cylinder & (1 << shift)) 4212 break; 4213 } 4214 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4215 #endif 4216 4217 /* 4218 * We've basically got 3 bytes, or 24 bits for the 4219 * cylinder size in the mode page. If we're over, 4220 * just round down to 2^24. 4221 */ 4222 if (cylinders > 0xffffff) 4223 cylinders = 0xffffff; 4224 4225 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4226 CTL_PAGE_CURRENT]; 4227 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4228 4229 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4230 CTL_PAGE_DEFAULT]; 4231 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4232 4233 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4234 CTL_PAGE_SAVED]; 4235 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4236 4237 page_index->page_data = 4238 (uint8_t *)lun->mode_pages.rigid_disk_page; 4239 break; 4240 } 4241 case SMS_CACHING_PAGE: { 4242 4243 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4244 panic("invalid subpage value %d", 4245 page_index->subpage); 4246 /* 4247 * Defaults should be okay here, no calculations 4248 * needed. 4249 */ 4250 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4251 &caching_page_default, 4252 sizeof(caching_page_default)); 4253 memcpy(&lun->mode_pages.caching_page[ 4254 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4255 sizeof(caching_page_changeable)); 4256 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4257 &caching_page_default, 4258 sizeof(caching_page_default)); 4259 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4260 &caching_page_default, 4261 sizeof(caching_page_default)); 4262 page_index->page_data = 4263 (uint8_t *)lun->mode_pages.caching_page; 4264 break; 4265 } 4266 case SMS_CONTROL_MODE_PAGE: { 4267 4268 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4269 panic("invalid subpage value %d", 4270 page_index->subpage); 4271 4272 /* 4273 * Defaults should be okay here, no calculations 4274 * needed. 4275 */ 4276 memcpy(&lun->mode_pages.control_page[CTL_PAGE_CURRENT], 4277 &control_page_default, 4278 sizeof(control_page_default)); 4279 memcpy(&lun->mode_pages.control_page[ 4280 CTL_PAGE_CHANGEABLE], &control_page_changeable, 4281 sizeof(control_page_changeable)); 4282 memcpy(&lun->mode_pages.control_page[CTL_PAGE_DEFAULT], 4283 &control_page_default, 4284 sizeof(control_page_default)); 4285 memcpy(&lun->mode_pages.control_page[CTL_PAGE_SAVED], 4286 &control_page_default, 4287 sizeof(control_page_default)); 4288 page_index->page_data = 4289 (uint8_t *)lun->mode_pages.control_page; 4290 break; 4291 4292 } 4293 case SMS_VENDOR_SPECIFIC_PAGE:{ 4294 switch (page_index->subpage) { 4295 case PWR_SUBPAGE_CODE: { 4296 struct copan_power_subpage *current_page, 4297 *saved_page; 4298 4299 memcpy(&lun->mode_pages.power_subpage[ 4300 CTL_PAGE_CURRENT], 4301 &power_page_default, 4302 sizeof(power_page_default)); 4303 memcpy(&lun->mode_pages.power_subpage[ 4304 CTL_PAGE_CHANGEABLE], 4305 &power_page_changeable, 4306 sizeof(power_page_changeable)); 4307 memcpy(&lun->mode_pages.power_subpage[ 4308 CTL_PAGE_DEFAULT], 4309 &power_page_default, 4310 sizeof(power_page_default)); 4311 memcpy(&lun->mode_pages.power_subpage[ 4312 CTL_PAGE_SAVED], 4313 &power_page_default, 4314 sizeof(power_page_default)); 4315 page_index->page_data = 4316 (uint8_t *)lun->mode_pages.power_subpage; 4317 4318 current_page = (struct copan_power_subpage *) 4319 (page_index->page_data + 4320 (page_index->page_len * 4321 CTL_PAGE_CURRENT)); 4322 saved_page = (struct copan_power_subpage *) 4323 (page_index->page_data + 4324 (page_index->page_len * 4325 CTL_PAGE_SAVED)); 4326 break; 4327 } 4328 case APS_SUBPAGE_CODE: { 4329 struct copan_aps_subpage *current_page, 4330 *saved_page; 4331 4332 // This gets set multiple times but 4333 // it should always be the same. It's 4334 // only done during init so who cares. 4335 index_to_aps_page = i; 4336 4337 memcpy(&lun->mode_pages.aps_subpage[ 4338 CTL_PAGE_CURRENT], 4339 &aps_page_default, 4340 sizeof(aps_page_default)); 4341 memcpy(&lun->mode_pages.aps_subpage[ 4342 CTL_PAGE_CHANGEABLE], 4343 &aps_page_changeable, 4344 sizeof(aps_page_changeable)); 4345 memcpy(&lun->mode_pages.aps_subpage[ 4346 CTL_PAGE_DEFAULT], 4347 &aps_page_default, 4348 sizeof(aps_page_default)); 4349 memcpy(&lun->mode_pages.aps_subpage[ 4350 CTL_PAGE_SAVED], 4351 &aps_page_default, 4352 sizeof(aps_page_default)); 4353 page_index->page_data = 4354 (uint8_t *)lun->mode_pages.aps_subpage; 4355 4356 current_page = (struct copan_aps_subpage *) 4357 (page_index->page_data + 4358 (page_index->page_len * 4359 CTL_PAGE_CURRENT)); 4360 saved_page = (struct copan_aps_subpage *) 4361 (page_index->page_data + 4362 (page_index->page_len * 4363 CTL_PAGE_SAVED)); 4364 break; 4365 } 4366 case DBGCNF_SUBPAGE_CODE: { 4367 struct copan_debugconf_subpage *current_page, 4368 *saved_page; 4369 4370 memcpy(&lun->mode_pages.debugconf_subpage[ 4371 CTL_PAGE_CURRENT], 4372 &debugconf_page_default, 4373 sizeof(debugconf_page_default)); 4374 memcpy(&lun->mode_pages.debugconf_subpage[ 4375 CTL_PAGE_CHANGEABLE], 4376 &debugconf_page_changeable, 4377 sizeof(debugconf_page_changeable)); 4378 memcpy(&lun->mode_pages.debugconf_subpage[ 4379 CTL_PAGE_DEFAULT], 4380 &debugconf_page_default, 4381 sizeof(debugconf_page_default)); 4382 memcpy(&lun->mode_pages.debugconf_subpage[ 4383 CTL_PAGE_SAVED], 4384 &debugconf_page_default, 4385 sizeof(debugconf_page_default)); 4386 page_index->page_data = 4387 (uint8_t *)lun->mode_pages.debugconf_subpage; 4388 4389 current_page = (struct copan_debugconf_subpage *) 4390 (page_index->page_data + 4391 (page_index->page_len * 4392 CTL_PAGE_CURRENT)); 4393 saved_page = (struct copan_debugconf_subpage *) 4394 (page_index->page_data + 4395 (page_index->page_len * 4396 CTL_PAGE_SAVED)); 4397 break; 4398 } 4399 default: 4400 panic("invalid subpage value %d", 4401 page_index->subpage); 4402 break; 4403 } 4404 break; 4405 } 4406 default: 4407 panic("invalid page value %d", 4408 page_index->page_code & SMPH_PC_MASK); 4409 break; 4410 } 4411 } 4412 4413 return (CTL_RETVAL_COMPLETE); 4414 } 4415 4416 /* 4417 * LUN allocation. 4418 * 4419 * Requirements: 4420 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4421 * wants us to allocate the LUN and he can block. 4422 * - ctl_softc is always set 4423 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4424 * 4425 * Returns 0 for success, non-zero (errno) for failure. 4426 */ 4427 static int 4428 ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4429 struct ctl_be_lun *const be_lun, struct ctl_id target_id) 4430 { 4431 struct ctl_lun *nlun, *lun; 4432 struct ctl_port *port; 4433 struct scsi_vpd_id_descriptor *desc; 4434 struct scsi_vpd_id_t10 *t10id; 4435 const char *eui, *naa, *scsiname, *vendor; 4436 int lun_number, i, lun_malloced; 4437 int devidlen, idlen1, idlen2 = 0, len; 4438 4439 if (be_lun == NULL) 4440 return (EINVAL); 4441 4442 /* 4443 * We currently only support Direct Access or Processor LUN types. 4444 */ 4445 switch (be_lun->lun_type) { 4446 case T_DIRECT: 4447 break; 4448 case T_PROCESSOR: 4449 break; 4450 case T_SEQUENTIAL: 4451 case T_CHANGER: 4452 default: 4453 be_lun->lun_config_status(be_lun->be_lun, 4454 CTL_LUN_CONFIG_FAILURE); 4455 break; 4456 } 4457 if (ctl_lun == NULL) { 4458 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4459 lun_malloced = 1; 4460 } else { 4461 lun_malloced = 0; 4462 lun = ctl_lun; 4463 } 4464 4465 memset(lun, 0, sizeof(*lun)); 4466 if (lun_malloced) 4467 lun->flags = CTL_LUN_MALLOCED; 4468 4469 /* Generate LUN ID. */ 4470 devidlen = max(CTL_DEVID_MIN_LEN, 4471 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4472 idlen1 = sizeof(*t10id) + devidlen; 4473 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4474 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4475 if (scsiname != NULL) { 4476 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4477 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4478 } 4479 eui = ctl_get_opt(&be_lun->options, "eui"); 4480 if (eui != NULL) { 4481 len += sizeof(struct scsi_vpd_id_descriptor) + 8; 4482 } 4483 naa = ctl_get_opt(&be_lun->options, "naa"); 4484 if (naa != NULL) { 4485 len += sizeof(struct scsi_vpd_id_descriptor) + 8; 4486 } 4487 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4488 M_CTL, M_WAITOK | M_ZERO); 4489 lun->lun_devid->len = len; 4490 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4491 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4492 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4493 desc->length = idlen1; 4494 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4495 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4496 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4497 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4498 } else { 4499 strncpy(t10id->vendor, vendor, 4500 min(sizeof(t10id->vendor), strlen(vendor))); 4501 } 4502 strncpy((char *)t10id->vendor_spec_id, 4503 (char *)be_lun->device_id, devidlen); 4504 if (scsiname != NULL) { 4505 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4506 desc->length); 4507 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4508 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4509 SVPD_ID_TYPE_SCSI_NAME; 4510 desc->length = idlen2; 4511 strlcpy(desc->identifier, scsiname, idlen2); 4512 } 4513 if (eui != NULL) { 4514 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4515 desc->length); 4516 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4517 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4518 SVPD_ID_TYPE_EUI64; 4519 desc->length = 8; 4520 scsi_u64to8b(strtouq(eui, NULL, 0), desc->identifier); 4521 } 4522 if (naa != NULL) { 4523 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4524 desc->length); 4525 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4526 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4527 SVPD_ID_TYPE_NAA; 4528 desc->length = 8; 4529 scsi_u64to8b(strtouq(naa, NULL, 0), desc->identifier); 4530 } 4531 4532 mtx_lock(&ctl_softc->ctl_lock); 4533 /* 4534 * See if the caller requested a particular LUN number. If so, see 4535 * if it is available. Otherwise, allocate the first available LUN. 4536 */ 4537 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4538 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4539 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4540 mtx_unlock(&ctl_softc->ctl_lock); 4541 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4542 printf("ctl: requested LUN ID %d is higher " 4543 "than CTL_MAX_LUNS - 1 (%d)\n", 4544 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4545 } else { 4546 /* 4547 * XXX KDM return an error, or just assign 4548 * another LUN ID in this case?? 4549 */ 4550 printf("ctl: requested LUN ID %d is already " 4551 "in use\n", be_lun->req_lun_id); 4552 } 4553 if (lun->flags & CTL_LUN_MALLOCED) 4554 free(lun, M_CTL); 4555 be_lun->lun_config_status(be_lun->be_lun, 4556 CTL_LUN_CONFIG_FAILURE); 4557 return (ENOSPC); 4558 } 4559 lun_number = be_lun->req_lun_id; 4560 } else { 4561 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, CTL_MAX_LUNS); 4562 if (lun_number == -1) { 4563 mtx_unlock(&ctl_softc->ctl_lock); 4564 printf("ctl: can't allocate LUN on target %ju, out of " 4565 "LUNs\n", (uintmax_t)target_id.id); 4566 if (lun->flags & CTL_LUN_MALLOCED) 4567 free(lun, M_CTL); 4568 be_lun->lun_config_status(be_lun->be_lun, 4569 CTL_LUN_CONFIG_FAILURE); 4570 return (ENOSPC); 4571 } 4572 } 4573 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4574 4575 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4576 lun->target = target_id; 4577 lun->lun = lun_number; 4578 lun->be_lun = be_lun; 4579 /* 4580 * The processor LUN is always enabled. Disk LUNs come on line 4581 * disabled, and must be enabled by the backend. 4582 */ 4583 lun->flags |= CTL_LUN_DISABLED; 4584 lun->backend = be_lun->be; 4585 be_lun->ctl_lun = lun; 4586 be_lun->lun_id = lun_number; 4587 atomic_add_int(&be_lun->be->num_luns, 1); 4588 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4589 lun->flags |= CTL_LUN_STOPPED; 4590 4591 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4592 lun->flags |= CTL_LUN_INOPERABLE; 4593 4594 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4595 lun->flags |= CTL_LUN_PRIMARY_SC; 4596 4597 lun->ctl_softc = ctl_softc; 4598 TAILQ_INIT(&lun->ooa_queue); 4599 TAILQ_INIT(&lun->blocked_queue); 4600 STAILQ_INIT(&lun->error_list); 4601 ctl_tpc_lun_init(lun); 4602 4603 /* 4604 * Initialize the mode page index. 4605 */ 4606 ctl_init_page_index(lun); 4607 4608 /* 4609 * Set the poweron UA for all initiators on this LUN only. 4610 */ 4611 for (i = 0; i < CTL_MAX_INITIATORS; i++) 4612 lun->pending_ua[i] = CTL_UA_POWERON; 4613 4614 /* 4615 * Now, before we insert this lun on the lun list, set the lun 4616 * inventory changed UA for all other luns. 4617 */ 4618 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4619 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4620 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4621 } 4622 } 4623 4624 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4625 4626 ctl_softc->ctl_luns[lun_number] = lun; 4627 4628 ctl_softc->num_luns++; 4629 4630 /* Setup statistics gathering */ 4631 lun->stats.device_type = be_lun->lun_type; 4632 lun->stats.lun_number = lun_number; 4633 if (lun->stats.device_type == T_DIRECT) 4634 lun->stats.blocksize = be_lun->blocksize; 4635 else 4636 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4637 for (i = 0;i < CTL_MAX_PORTS;i++) 4638 lun->stats.ports[i].targ_port = i; 4639 4640 mtx_unlock(&ctl_softc->ctl_lock); 4641 4642 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4643 4644 /* 4645 * Run through each registered FETD and bring it online if it isn't 4646 * already. Enable the target ID if it hasn't been enabled, and 4647 * enable this particular LUN. 4648 */ 4649 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4650 int retval; 4651 4652 retval = port->lun_enable(port->targ_lun_arg, target_id,lun_number); 4653 if (retval != 0) { 4654 printf("ctl_alloc_lun: FETD %s port %d returned error " 4655 "%d for lun_enable on target %ju lun %d\n", 4656 port->port_name, port->targ_port, retval, 4657 (uintmax_t)target_id.id, lun_number); 4658 } else 4659 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4660 } 4661 return (0); 4662 } 4663 4664 /* 4665 * Delete a LUN. 4666 * Assumptions: 4667 * - LUN has already been marked invalid and any pending I/O has been taken 4668 * care of. 4669 */ 4670 static int 4671 ctl_free_lun(struct ctl_lun *lun) 4672 { 4673 struct ctl_softc *softc; 4674 #if 0 4675 struct ctl_port *port; 4676 #endif 4677 struct ctl_lun *nlun; 4678 int i; 4679 4680 softc = lun->ctl_softc; 4681 4682 mtx_assert(&softc->ctl_lock, MA_OWNED); 4683 4684 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4685 4686 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4687 4688 softc->ctl_luns[lun->lun] = NULL; 4689 4690 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4691 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4692 4693 softc->num_luns--; 4694 4695 /* 4696 * XXX KDM this scheme only works for a single target/multiple LUN 4697 * setup. It needs to be revamped for a multiple target scheme. 4698 * 4699 * XXX KDM this results in port->lun_disable() getting called twice, 4700 * once when ctl_disable_lun() is called, and a second time here. 4701 * We really need to re-think the LUN disable semantics. There 4702 * should probably be several steps/levels to LUN removal: 4703 * - disable 4704 * - invalidate 4705 * - free 4706 * 4707 * Right now we only have a disable method when communicating to 4708 * the front end ports, at least for individual LUNs. 4709 */ 4710 #if 0 4711 STAILQ_FOREACH(port, &softc->port_list, links) { 4712 int retval; 4713 4714 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4715 lun->lun); 4716 if (retval != 0) { 4717 printf("ctl_free_lun: FETD %s port %d returned error " 4718 "%d for lun_disable on target %ju lun %jd\n", 4719 port->port_name, port->targ_port, retval, 4720 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4721 } 4722 4723 if (STAILQ_FIRST(&softc->lun_list) == NULL) { 4724 port->status &= ~CTL_PORT_STATUS_LUN_ONLINE; 4725 4726 retval = port->targ_disable(port->targ_lun_arg,lun->target); 4727 if (retval != 0) { 4728 printf("ctl_free_lun: FETD %s port %d " 4729 "returned error %d for targ_disable on " 4730 "target %ju\n", port->port_name, 4731 port->targ_port, retval, 4732 (uintmax_t)lun->target.id); 4733 } else 4734 port->status &= ~CTL_PORT_STATUS_TARG_ONLINE; 4735 4736 if ((port->status & CTL_PORT_STATUS_TARG_ONLINE) != 0) 4737 continue; 4738 4739 #if 0 4740 port->port_offline(port->onoff_arg); 4741 port->status &= ~CTL_PORT_STATUS_ONLINE; 4742 #endif 4743 } 4744 } 4745 #endif 4746 4747 /* 4748 * Tell the backend to free resources, if this LUN has a backend. 4749 */ 4750 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4751 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4752 4753 ctl_tpc_lun_shutdown(lun); 4754 mtx_destroy(&lun->lun_lock); 4755 free(lun->lun_devid, M_CTL); 4756 if (lun->flags & CTL_LUN_MALLOCED) 4757 free(lun, M_CTL); 4758 4759 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4760 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4761 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4762 } 4763 } 4764 4765 return (0); 4766 } 4767 4768 static void 4769 ctl_create_lun(struct ctl_be_lun *be_lun) 4770 { 4771 struct ctl_softc *ctl_softc; 4772 4773 ctl_softc = control_softc; 4774 4775 /* 4776 * ctl_alloc_lun() should handle all potential failure cases. 4777 */ 4778 ctl_alloc_lun(ctl_softc, NULL, be_lun, ctl_softc->target); 4779 } 4780 4781 int 4782 ctl_add_lun(struct ctl_be_lun *be_lun) 4783 { 4784 struct ctl_softc *ctl_softc = control_softc; 4785 4786 mtx_lock(&ctl_softc->ctl_lock); 4787 STAILQ_INSERT_TAIL(&ctl_softc->pending_lun_queue, be_lun, links); 4788 mtx_unlock(&ctl_softc->ctl_lock); 4789 wakeup(&ctl_softc->pending_lun_queue); 4790 4791 return (0); 4792 } 4793 4794 int 4795 ctl_enable_lun(struct ctl_be_lun *be_lun) 4796 { 4797 struct ctl_softc *ctl_softc; 4798 struct ctl_port *port, *nport; 4799 struct ctl_lun *lun; 4800 int retval; 4801 4802 ctl_softc = control_softc; 4803 4804 lun = (struct ctl_lun *)be_lun->ctl_lun; 4805 4806 mtx_lock(&ctl_softc->ctl_lock); 4807 mtx_lock(&lun->lun_lock); 4808 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4809 /* 4810 * eh? Why did we get called if the LUN is already 4811 * enabled? 4812 */ 4813 mtx_unlock(&lun->lun_lock); 4814 mtx_unlock(&ctl_softc->ctl_lock); 4815 return (0); 4816 } 4817 lun->flags &= ~CTL_LUN_DISABLED; 4818 mtx_unlock(&lun->lun_lock); 4819 4820 for (port = STAILQ_FIRST(&ctl_softc->port_list); port != NULL; port = nport) { 4821 nport = STAILQ_NEXT(port, links); 4822 4823 /* 4824 * Drop the lock while we call the FETD's enable routine. 4825 * This can lead to a callback into CTL (at least in the 4826 * case of the internal initiator frontend. 4827 */ 4828 mtx_unlock(&ctl_softc->ctl_lock); 4829 retval = port->lun_enable(port->targ_lun_arg, lun->target,lun->lun); 4830 mtx_lock(&ctl_softc->ctl_lock); 4831 if (retval != 0) { 4832 printf("%s: FETD %s port %d returned error " 4833 "%d for lun_enable on target %ju lun %jd\n", 4834 __func__, port->port_name, port->targ_port, retval, 4835 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4836 } 4837 #if 0 4838 else { 4839 /* NOTE: TODO: why does lun enable affect port status? */ 4840 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4841 } 4842 #endif 4843 } 4844 4845 mtx_unlock(&ctl_softc->ctl_lock); 4846 4847 return (0); 4848 } 4849 4850 int 4851 ctl_disable_lun(struct ctl_be_lun *be_lun) 4852 { 4853 struct ctl_softc *ctl_softc; 4854 struct ctl_port *port; 4855 struct ctl_lun *lun; 4856 int retval; 4857 4858 ctl_softc = control_softc; 4859 4860 lun = (struct ctl_lun *)be_lun->ctl_lun; 4861 4862 mtx_lock(&ctl_softc->ctl_lock); 4863 mtx_lock(&lun->lun_lock); 4864 if (lun->flags & CTL_LUN_DISABLED) { 4865 mtx_unlock(&lun->lun_lock); 4866 mtx_unlock(&ctl_softc->ctl_lock); 4867 return (0); 4868 } 4869 lun->flags |= CTL_LUN_DISABLED; 4870 mtx_unlock(&lun->lun_lock); 4871 4872 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4873 mtx_unlock(&ctl_softc->ctl_lock); 4874 /* 4875 * Drop the lock before we call the frontend's disable 4876 * routine, to avoid lock order reversals. 4877 * 4878 * XXX KDM what happens if the frontend list changes while 4879 * we're traversing it? It's unlikely, but should be handled. 4880 */ 4881 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4882 lun->lun); 4883 mtx_lock(&ctl_softc->ctl_lock); 4884 if (retval != 0) { 4885 printf("ctl_alloc_lun: FETD %s port %d returned error " 4886 "%d for lun_disable on target %ju lun %jd\n", 4887 port->port_name, port->targ_port, retval, 4888 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4889 } 4890 } 4891 4892 mtx_unlock(&ctl_softc->ctl_lock); 4893 4894 return (0); 4895 } 4896 4897 int 4898 ctl_start_lun(struct ctl_be_lun *be_lun) 4899 { 4900 struct ctl_softc *ctl_softc; 4901 struct ctl_lun *lun; 4902 4903 ctl_softc = control_softc; 4904 4905 lun = (struct ctl_lun *)be_lun->ctl_lun; 4906 4907 mtx_lock(&lun->lun_lock); 4908 lun->flags &= ~CTL_LUN_STOPPED; 4909 mtx_unlock(&lun->lun_lock); 4910 4911 return (0); 4912 } 4913 4914 int 4915 ctl_stop_lun(struct ctl_be_lun *be_lun) 4916 { 4917 struct ctl_softc *ctl_softc; 4918 struct ctl_lun *lun; 4919 4920 ctl_softc = control_softc; 4921 4922 lun = (struct ctl_lun *)be_lun->ctl_lun; 4923 4924 mtx_lock(&lun->lun_lock); 4925 lun->flags |= CTL_LUN_STOPPED; 4926 mtx_unlock(&lun->lun_lock); 4927 4928 return (0); 4929 } 4930 4931 int 4932 ctl_lun_offline(struct ctl_be_lun *be_lun) 4933 { 4934 struct ctl_softc *ctl_softc; 4935 struct ctl_lun *lun; 4936 4937 ctl_softc = control_softc; 4938 4939 lun = (struct ctl_lun *)be_lun->ctl_lun; 4940 4941 mtx_lock(&lun->lun_lock); 4942 lun->flags |= CTL_LUN_OFFLINE; 4943 mtx_unlock(&lun->lun_lock); 4944 4945 return (0); 4946 } 4947 4948 int 4949 ctl_lun_online(struct ctl_be_lun *be_lun) 4950 { 4951 struct ctl_softc *ctl_softc; 4952 struct ctl_lun *lun; 4953 4954 ctl_softc = control_softc; 4955 4956 lun = (struct ctl_lun *)be_lun->ctl_lun; 4957 4958 mtx_lock(&lun->lun_lock); 4959 lun->flags &= ~CTL_LUN_OFFLINE; 4960 mtx_unlock(&lun->lun_lock); 4961 4962 return (0); 4963 } 4964 4965 int 4966 ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4967 { 4968 struct ctl_softc *ctl_softc; 4969 struct ctl_lun *lun; 4970 4971 ctl_softc = control_softc; 4972 4973 lun = (struct ctl_lun *)be_lun->ctl_lun; 4974 4975 mtx_lock(&lun->lun_lock); 4976 4977 /* 4978 * The LUN needs to be disabled before it can be marked invalid. 4979 */ 4980 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4981 mtx_unlock(&lun->lun_lock); 4982 return (-1); 4983 } 4984 /* 4985 * Mark the LUN invalid. 4986 */ 4987 lun->flags |= CTL_LUN_INVALID; 4988 4989 /* 4990 * If there is nothing in the OOA queue, go ahead and free the LUN. 4991 * If we have something in the OOA queue, we'll free it when the 4992 * last I/O completes. 4993 */ 4994 if (TAILQ_EMPTY(&lun->ooa_queue)) { 4995 mtx_unlock(&lun->lun_lock); 4996 mtx_lock(&ctl_softc->ctl_lock); 4997 ctl_free_lun(lun); 4998 mtx_unlock(&ctl_softc->ctl_lock); 4999 } else 5000 mtx_unlock(&lun->lun_lock); 5001 5002 return (0); 5003 } 5004 5005 int 5006 ctl_lun_inoperable(struct ctl_be_lun *be_lun) 5007 { 5008 struct ctl_softc *ctl_softc; 5009 struct ctl_lun *lun; 5010 5011 ctl_softc = control_softc; 5012 lun = (struct ctl_lun *)be_lun->ctl_lun; 5013 5014 mtx_lock(&lun->lun_lock); 5015 lun->flags |= CTL_LUN_INOPERABLE; 5016 mtx_unlock(&lun->lun_lock); 5017 5018 return (0); 5019 } 5020 5021 int 5022 ctl_lun_operable(struct ctl_be_lun *be_lun) 5023 { 5024 struct ctl_softc *ctl_softc; 5025 struct ctl_lun *lun; 5026 5027 ctl_softc = control_softc; 5028 lun = (struct ctl_lun *)be_lun->ctl_lun; 5029 5030 mtx_lock(&lun->lun_lock); 5031 lun->flags &= ~CTL_LUN_INOPERABLE; 5032 mtx_unlock(&lun->lun_lock); 5033 5034 return (0); 5035 } 5036 5037 int 5038 ctl_lun_power_lock(struct ctl_be_lun *be_lun, struct ctl_nexus *nexus, 5039 int lock) 5040 { 5041 struct ctl_softc *softc; 5042 struct ctl_lun *lun; 5043 struct copan_aps_subpage *current_sp; 5044 struct ctl_page_index *page_index; 5045 int i; 5046 5047 softc = control_softc; 5048 5049 mtx_lock(&softc->ctl_lock); 5050 5051 lun = (struct ctl_lun *)be_lun->ctl_lun; 5052 mtx_lock(&lun->lun_lock); 5053 5054 page_index = NULL; 5055 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 5056 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 5057 APS_PAGE_CODE) 5058 continue; 5059 5060 if (lun->mode_pages.index[i].subpage != APS_SUBPAGE_CODE) 5061 continue; 5062 page_index = &lun->mode_pages.index[i]; 5063 } 5064 5065 if (page_index == NULL) { 5066 mtx_unlock(&lun->lun_lock); 5067 mtx_unlock(&softc->ctl_lock); 5068 printf("%s: APS subpage not found for lun %ju!\n", __func__, 5069 (uintmax_t)lun->lun); 5070 return (1); 5071 } 5072 #if 0 5073 if ((softc->aps_locked_lun != 0) 5074 && (softc->aps_locked_lun != lun->lun)) { 5075 printf("%s: attempt to lock LUN %llu when %llu is already " 5076 "locked\n"); 5077 mtx_unlock(&lun->lun_lock); 5078 mtx_unlock(&softc->ctl_lock); 5079 return (1); 5080 } 5081 #endif 5082 5083 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 5084 (page_index->page_len * CTL_PAGE_CURRENT)); 5085 5086 if (lock != 0) { 5087 current_sp->lock_active = APS_LOCK_ACTIVE; 5088 softc->aps_locked_lun = lun->lun; 5089 } else { 5090 current_sp->lock_active = 0; 5091 softc->aps_locked_lun = 0; 5092 } 5093 5094 5095 /* 5096 * If we're in HA mode, try to send the lock message to the other 5097 * side. 5098 */ 5099 if (ctl_is_single == 0) { 5100 int isc_retval; 5101 union ctl_ha_msg lock_msg; 5102 5103 lock_msg.hdr.nexus = *nexus; 5104 lock_msg.hdr.msg_type = CTL_MSG_APS_LOCK; 5105 if (lock != 0) 5106 lock_msg.aps.lock_flag = 1; 5107 else 5108 lock_msg.aps.lock_flag = 0; 5109 isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &lock_msg, 5110 sizeof(lock_msg), 0); 5111 if (isc_retval > CTL_HA_STATUS_SUCCESS) { 5112 printf("%s: APS (lock=%d) error returned from " 5113 "ctl_ha_msg_send: %d\n", __func__, lock, isc_retval); 5114 mtx_unlock(&lun->lun_lock); 5115 mtx_unlock(&softc->ctl_lock); 5116 return (1); 5117 } 5118 } 5119 5120 mtx_unlock(&lun->lun_lock); 5121 mtx_unlock(&softc->ctl_lock); 5122 5123 return (0); 5124 } 5125 5126 void 5127 ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 5128 { 5129 struct ctl_lun *lun; 5130 struct ctl_softc *softc; 5131 int i; 5132 5133 softc = control_softc; 5134 5135 lun = (struct ctl_lun *)be_lun->ctl_lun; 5136 5137 mtx_lock(&lun->lun_lock); 5138 5139 for (i = 0; i < CTL_MAX_INITIATORS; i++) 5140 lun->pending_ua[i] |= CTL_UA_CAPACITY_CHANGED; 5141 5142 mtx_unlock(&lun->lun_lock); 5143 } 5144 5145 /* 5146 * Backend "memory move is complete" callback for requests that never 5147 * make it down to say RAIDCore's configuration code. 5148 */ 5149 int 5150 ctl_config_move_done(union ctl_io *io) 5151 { 5152 int retval; 5153 5154 retval = CTL_RETVAL_COMPLETE; 5155 5156 5157 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 5158 /* 5159 * XXX KDM this shouldn't happen, but what if it does? 5160 */ 5161 if (io->io_hdr.io_type != CTL_IO_SCSI) 5162 panic("I/O type isn't CTL_IO_SCSI!"); 5163 5164 if ((io->io_hdr.port_status == 0) 5165 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5166 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)) 5167 io->io_hdr.status = CTL_SUCCESS; 5168 else if ((io->io_hdr.port_status != 0) 5169 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5170 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)){ 5171 /* 5172 * For hardware error sense keys, the sense key 5173 * specific value is defined to be a retry count, 5174 * but we use it to pass back an internal FETD 5175 * error code. XXX KDM Hopefully the FETD is only 5176 * using 16 bits for an error code, since that's 5177 * all the space we have in the sks field. 5178 */ 5179 ctl_set_internal_failure(&io->scsiio, 5180 /*sks_valid*/ 1, 5181 /*retry_count*/ 5182 io->io_hdr.port_status); 5183 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5184 free(io->scsiio.kern_data_ptr, M_CTL); 5185 ctl_done(io); 5186 goto bailout; 5187 } 5188 5189 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 5190 || ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 5191 || ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5192 /* 5193 * XXX KDM just assuming a single pointer here, and not a 5194 * S/G list. If we start using S/G lists for config data, 5195 * we'll need to know how to clean them up here as well. 5196 */ 5197 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5198 free(io->scsiio.kern_data_ptr, M_CTL); 5199 /* Hopefully the user has already set the status... */ 5200 ctl_done(io); 5201 } else { 5202 /* 5203 * XXX KDM now we need to continue data movement. Some 5204 * options: 5205 * - call ctl_scsiio() again? We don't do this for data 5206 * writes, because for those at least we know ahead of 5207 * time where the write will go and how long it is. For 5208 * config writes, though, that information is largely 5209 * contained within the write itself, thus we need to 5210 * parse out the data again. 5211 * 5212 * - Call some other function once the data is in? 5213 */ 5214 5215 /* 5216 * XXX KDM call ctl_scsiio() again for now, and check flag 5217 * bits to see whether we're allocated or not. 5218 */ 5219 retval = ctl_scsiio(&io->scsiio); 5220 } 5221 bailout: 5222 return (retval); 5223 } 5224 5225 /* 5226 * This gets called by a backend driver when it is done with a 5227 * data_submit method. 5228 */ 5229 void 5230 ctl_data_submit_done(union ctl_io *io) 5231 { 5232 /* 5233 * If the IO_CONT flag is set, we need to call the supplied 5234 * function to continue processing the I/O, instead of completing 5235 * the I/O just yet. 5236 * 5237 * If there is an error, though, we don't want to keep processing. 5238 * Instead, just send status back to the initiator. 5239 */ 5240 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5241 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5242 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5243 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5244 io->scsiio.io_cont(io); 5245 return; 5246 } 5247 ctl_done(io); 5248 } 5249 5250 /* 5251 * This gets called by a backend driver when it is done with a 5252 * configuration write. 5253 */ 5254 void 5255 ctl_config_write_done(union ctl_io *io) 5256 { 5257 /* 5258 * If the IO_CONT flag is set, we need to call the supplied 5259 * function to continue processing the I/O, instead of completing 5260 * the I/O just yet. 5261 * 5262 * If there is an error, though, we don't want to keep processing. 5263 * Instead, just send status back to the initiator. 5264 */ 5265 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) 5266 && (((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE) 5267 || ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS))) { 5268 io->scsiio.io_cont(io); 5269 return; 5270 } 5271 /* 5272 * Since a configuration write can be done for commands that actually 5273 * have data allocated, like write buffer, and commands that have 5274 * no data, like start/stop unit, we need to check here. 5275 */ 5276 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) 5277 free(io->scsiio.kern_data_ptr, M_CTL); 5278 ctl_done(io); 5279 } 5280 5281 /* 5282 * SCSI release command. 5283 */ 5284 int 5285 ctl_scsi_release(struct ctl_scsiio *ctsio) 5286 { 5287 int length, longid, thirdparty_id, resv_id; 5288 struct ctl_softc *ctl_softc; 5289 struct ctl_lun *lun; 5290 5291 length = 0; 5292 resv_id = 0; 5293 5294 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5295 5296 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5297 ctl_softc = control_softc; 5298 5299 switch (ctsio->cdb[0]) { 5300 case RELEASE_10: { 5301 struct scsi_release_10 *cdb; 5302 5303 cdb = (struct scsi_release_10 *)ctsio->cdb; 5304 5305 if (cdb->byte2 & SR10_LONGID) 5306 longid = 1; 5307 else 5308 thirdparty_id = cdb->thirdparty_id; 5309 5310 resv_id = cdb->resv_id; 5311 length = scsi_2btoul(cdb->length); 5312 break; 5313 } 5314 } 5315 5316 5317 /* 5318 * XXX KDM right now, we only support LUN reservation. We don't 5319 * support 3rd party reservations, or extent reservations, which 5320 * might actually need the parameter list. If we've gotten this 5321 * far, we've got a LUN reservation. Anything else got kicked out 5322 * above. So, according to SPC, ignore the length. 5323 */ 5324 length = 0; 5325 5326 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5327 && (length > 0)) { 5328 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5329 ctsio->kern_data_len = length; 5330 ctsio->kern_total_len = length; 5331 ctsio->kern_data_resid = 0; 5332 ctsio->kern_rel_offset = 0; 5333 ctsio->kern_sg_entries = 0; 5334 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5335 ctsio->be_move_done = ctl_config_move_done; 5336 ctl_datamove((union ctl_io *)ctsio); 5337 5338 return (CTL_RETVAL_COMPLETE); 5339 } 5340 5341 if (length > 0) 5342 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5343 5344 mtx_lock(&lun->lun_lock); 5345 5346 /* 5347 * According to SPC, it is not an error for an intiator to attempt 5348 * to release a reservation on a LUN that isn't reserved, or that 5349 * is reserved by another initiator. The reservation can only be 5350 * released, though, by the initiator who made it or by one of 5351 * several reset type events. 5352 */ 5353 if (lun->flags & CTL_LUN_RESERVED) { 5354 if ((ctsio->io_hdr.nexus.initid.id == lun->rsv_nexus.initid.id) 5355 && (ctsio->io_hdr.nexus.targ_port == lun->rsv_nexus.targ_port) 5356 && (ctsio->io_hdr.nexus.targ_target.id == 5357 lun->rsv_nexus.targ_target.id)) { 5358 lun->flags &= ~CTL_LUN_RESERVED; 5359 } 5360 } 5361 5362 mtx_unlock(&lun->lun_lock); 5363 5364 ctsio->scsi_status = SCSI_STATUS_OK; 5365 ctsio->io_hdr.status = CTL_SUCCESS; 5366 5367 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5368 free(ctsio->kern_data_ptr, M_CTL); 5369 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5370 } 5371 5372 ctl_done((union ctl_io *)ctsio); 5373 return (CTL_RETVAL_COMPLETE); 5374 } 5375 5376 int 5377 ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5378 { 5379 int extent, thirdparty, longid; 5380 int resv_id, length; 5381 uint64_t thirdparty_id; 5382 struct ctl_softc *ctl_softc; 5383 struct ctl_lun *lun; 5384 5385 extent = 0; 5386 thirdparty = 0; 5387 longid = 0; 5388 resv_id = 0; 5389 length = 0; 5390 thirdparty_id = 0; 5391 5392 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5393 5394 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5395 ctl_softc = control_softc; 5396 5397 switch (ctsio->cdb[0]) { 5398 case RESERVE_10: { 5399 struct scsi_reserve_10 *cdb; 5400 5401 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 5402 5403 if (cdb->byte2 & SR10_LONGID) 5404 longid = 1; 5405 else 5406 thirdparty_id = cdb->thirdparty_id; 5407 5408 resv_id = cdb->resv_id; 5409 length = scsi_2btoul(cdb->length); 5410 break; 5411 } 5412 } 5413 5414 /* 5415 * XXX KDM right now, we only support LUN reservation. We don't 5416 * support 3rd party reservations, or extent reservations, which 5417 * might actually need the parameter list. If we've gotten this 5418 * far, we've got a LUN reservation. Anything else got kicked out 5419 * above. So, according to SPC, ignore the length. 5420 */ 5421 length = 0; 5422 5423 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5424 && (length > 0)) { 5425 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5426 ctsio->kern_data_len = length; 5427 ctsio->kern_total_len = length; 5428 ctsio->kern_data_resid = 0; 5429 ctsio->kern_rel_offset = 0; 5430 ctsio->kern_sg_entries = 0; 5431 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5432 ctsio->be_move_done = ctl_config_move_done; 5433 ctl_datamove((union ctl_io *)ctsio); 5434 5435 return (CTL_RETVAL_COMPLETE); 5436 } 5437 5438 if (length > 0) 5439 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5440 5441 mtx_lock(&lun->lun_lock); 5442 if (lun->flags & CTL_LUN_RESERVED) { 5443 if ((ctsio->io_hdr.nexus.initid.id != lun->rsv_nexus.initid.id) 5444 || (ctsio->io_hdr.nexus.targ_port != lun->rsv_nexus.targ_port) 5445 || (ctsio->io_hdr.nexus.targ_target.id != 5446 lun->rsv_nexus.targ_target.id)) { 5447 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 5448 ctsio->io_hdr.status = CTL_SCSI_ERROR; 5449 goto bailout; 5450 } 5451 } 5452 5453 lun->flags |= CTL_LUN_RESERVED; 5454 lun->rsv_nexus = ctsio->io_hdr.nexus; 5455 5456 ctsio->scsi_status = SCSI_STATUS_OK; 5457 ctsio->io_hdr.status = CTL_SUCCESS; 5458 5459 bailout: 5460 mtx_unlock(&lun->lun_lock); 5461 5462 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5463 free(ctsio->kern_data_ptr, M_CTL); 5464 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5465 } 5466 5467 ctl_done((union ctl_io *)ctsio); 5468 return (CTL_RETVAL_COMPLETE); 5469 } 5470 5471 int 5472 ctl_start_stop(struct ctl_scsiio *ctsio) 5473 { 5474 struct scsi_start_stop_unit *cdb; 5475 struct ctl_lun *lun; 5476 struct ctl_softc *ctl_softc; 5477 int retval; 5478 5479 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5480 5481 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5482 ctl_softc = control_softc; 5483 retval = 0; 5484 5485 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5486 5487 /* 5488 * XXX KDM 5489 * We don't support the immediate bit on a stop unit. In order to 5490 * do that, we would need to code up a way to know that a stop is 5491 * pending, and hold off any new commands until it completes, one 5492 * way or another. Then we could accept or reject those commands 5493 * depending on its status. We would almost need to do the reverse 5494 * of what we do below for an immediate start -- return the copy of 5495 * the ctl_io to the FETD with status to send to the host (and to 5496 * free the copy!) and then free the original I/O once the stop 5497 * actually completes. That way, the OOA queue mechanism can work 5498 * to block commands that shouldn't proceed. Another alternative 5499 * would be to put the copy in the queue in place of the original, 5500 * and return the original back to the caller. That could be 5501 * slightly safer.. 5502 */ 5503 if ((cdb->byte2 & SSS_IMMED) 5504 && ((cdb->how & SSS_START) == 0)) { 5505 ctl_set_invalid_field(ctsio, 5506 /*sks_valid*/ 1, 5507 /*command*/ 1, 5508 /*field*/ 1, 5509 /*bit_valid*/ 1, 5510 /*bit*/ 0); 5511 ctl_done((union ctl_io *)ctsio); 5512 return (CTL_RETVAL_COMPLETE); 5513 } 5514 5515 if ((lun->flags & CTL_LUN_PR_RESERVED) 5516 && ((cdb->how & SSS_START)==0)) { 5517 uint32_t residx; 5518 5519 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5520 if (!lun->per_res[residx].registered 5521 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5522 5523 ctl_set_reservation_conflict(ctsio); 5524 ctl_done((union ctl_io *)ctsio); 5525 return (CTL_RETVAL_COMPLETE); 5526 } 5527 } 5528 5529 /* 5530 * If there is no backend on this device, we can't start or stop 5531 * it. In theory we shouldn't get any start/stop commands in the 5532 * first place at this level if the LUN doesn't have a backend. 5533 * That should get stopped by the command decode code. 5534 */ 5535 if (lun->backend == NULL) { 5536 ctl_set_invalid_opcode(ctsio); 5537 ctl_done((union ctl_io *)ctsio); 5538 return (CTL_RETVAL_COMPLETE); 5539 } 5540 5541 /* 5542 * XXX KDM Copan-specific offline behavior. 5543 * Figure out a reasonable way to port this? 5544 */ 5545 #ifdef NEEDTOPORT 5546 mtx_lock(&lun->lun_lock); 5547 5548 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5549 && (lun->flags & CTL_LUN_OFFLINE)) { 5550 /* 5551 * If the LUN is offline, and the on/offline bit isn't set, 5552 * reject the start or stop. Otherwise, let it through. 5553 */ 5554 mtx_unlock(&lun->lun_lock); 5555 ctl_set_lun_not_ready(ctsio); 5556 ctl_done((union ctl_io *)ctsio); 5557 } else { 5558 mtx_unlock(&lun->lun_lock); 5559 #endif /* NEEDTOPORT */ 5560 /* 5561 * This could be a start or a stop when we're online, 5562 * or a stop/offline or start/online. A start or stop when 5563 * we're offline is covered in the case above. 5564 */ 5565 /* 5566 * In the non-immediate case, we send the request to 5567 * the backend and return status to the user when 5568 * it is done. 5569 * 5570 * In the immediate case, we allocate a new ctl_io 5571 * to hold a copy of the request, and send that to 5572 * the backend. We then set good status on the 5573 * user's request and return it immediately. 5574 */ 5575 if (cdb->byte2 & SSS_IMMED) { 5576 union ctl_io *new_io; 5577 5578 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5579 if (new_io == NULL) { 5580 ctl_set_busy(ctsio); 5581 ctl_done((union ctl_io *)ctsio); 5582 } else { 5583 ctl_copy_io((union ctl_io *)ctsio, 5584 new_io); 5585 retval = lun->backend->config_write(new_io); 5586 ctl_set_success(ctsio); 5587 ctl_done((union ctl_io *)ctsio); 5588 } 5589 } else { 5590 retval = lun->backend->config_write( 5591 (union ctl_io *)ctsio); 5592 } 5593 #ifdef NEEDTOPORT 5594 } 5595 #endif 5596 return (retval); 5597 } 5598 5599 /* 5600 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5601 * we don't really do anything with the LBA and length fields if the user 5602 * passes them in. Instead we'll just flush out the cache for the entire 5603 * LUN. 5604 */ 5605 int 5606 ctl_sync_cache(struct ctl_scsiio *ctsio) 5607 { 5608 struct ctl_lun *lun; 5609 struct ctl_softc *ctl_softc; 5610 uint64_t starting_lba; 5611 uint32_t block_count; 5612 int retval; 5613 5614 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5615 5616 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5617 ctl_softc = control_softc; 5618 retval = 0; 5619 5620 switch (ctsio->cdb[0]) { 5621 case SYNCHRONIZE_CACHE: { 5622 struct scsi_sync_cache *cdb; 5623 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5624 5625 starting_lba = scsi_4btoul(cdb->begin_lba); 5626 block_count = scsi_2btoul(cdb->lb_count); 5627 break; 5628 } 5629 case SYNCHRONIZE_CACHE_16: { 5630 struct scsi_sync_cache_16 *cdb; 5631 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5632 5633 starting_lba = scsi_8btou64(cdb->begin_lba); 5634 block_count = scsi_4btoul(cdb->lb_count); 5635 break; 5636 } 5637 default: 5638 ctl_set_invalid_opcode(ctsio); 5639 ctl_done((union ctl_io *)ctsio); 5640 goto bailout; 5641 break; /* NOTREACHED */ 5642 } 5643 5644 /* 5645 * We check the LBA and length, but don't do anything with them. 5646 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5647 * get flushed. This check will just help satisfy anyone who wants 5648 * to see an error for an out of range LBA. 5649 */ 5650 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5651 ctl_set_lba_out_of_range(ctsio); 5652 ctl_done((union ctl_io *)ctsio); 5653 goto bailout; 5654 } 5655 5656 /* 5657 * If this LUN has no backend, we can't flush the cache anyway. 5658 */ 5659 if (lun->backend == NULL) { 5660 ctl_set_invalid_opcode(ctsio); 5661 ctl_done((union ctl_io *)ctsio); 5662 goto bailout; 5663 } 5664 5665 /* 5666 * Check to see whether we're configured to send the SYNCHRONIZE 5667 * CACHE command directly to the back end. 5668 */ 5669 mtx_lock(&lun->lun_lock); 5670 if ((ctl_softc->flags & CTL_FLAG_REAL_SYNC) 5671 && (++(lun->sync_count) >= lun->sync_interval)) { 5672 lun->sync_count = 0; 5673 mtx_unlock(&lun->lun_lock); 5674 retval = lun->backend->config_write((union ctl_io *)ctsio); 5675 } else { 5676 mtx_unlock(&lun->lun_lock); 5677 ctl_set_success(ctsio); 5678 ctl_done((union ctl_io *)ctsio); 5679 } 5680 5681 bailout: 5682 5683 return (retval); 5684 } 5685 5686 int 5687 ctl_format(struct ctl_scsiio *ctsio) 5688 { 5689 struct scsi_format *cdb; 5690 struct ctl_lun *lun; 5691 struct ctl_softc *ctl_softc; 5692 int length, defect_list_len; 5693 5694 CTL_DEBUG_PRINT(("ctl_format\n")); 5695 5696 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5697 ctl_softc = control_softc; 5698 5699 cdb = (struct scsi_format *)ctsio->cdb; 5700 5701 length = 0; 5702 if (cdb->byte2 & SF_FMTDATA) { 5703 if (cdb->byte2 & SF_LONGLIST) 5704 length = sizeof(struct scsi_format_header_long); 5705 else 5706 length = sizeof(struct scsi_format_header_short); 5707 } 5708 5709 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5710 && (length > 0)) { 5711 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5712 ctsio->kern_data_len = length; 5713 ctsio->kern_total_len = length; 5714 ctsio->kern_data_resid = 0; 5715 ctsio->kern_rel_offset = 0; 5716 ctsio->kern_sg_entries = 0; 5717 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5718 ctsio->be_move_done = ctl_config_move_done; 5719 ctl_datamove((union ctl_io *)ctsio); 5720 5721 return (CTL_RETVAL_COMPLETE); 5722 } 5723 5724 defect_list_len = 0; 5725 5726 if (cdb->byte2 & SF_FMTDATA) { 5727 if (cdb->byte2 & SF_LONGLIST) { 5728 struct scsi_format_header_long *header; 5729 5730 header = (struct scsi_format_header_long *) 5731 ctsio->kern_data_ptr; 5732 5733 defect_list_len = scsi_4btoul(header->defect_list_len); 5734 if (defect_list_len != 0) { 5735 ctl_set_invalid_field(ctsio, 5736 /*sks_valid*/ 1, 5737 /*command*/ 0, 5738 /*field*/ 2, 5739 /*bit_valid*/ 0, 5740 /*bit*/ 0); 5741 goto bailout; 5742 } 5743 } else { 5744 struct scsi_format_header_short *header; 5745 5746 header = (struct scsi_format_header_short *) 5747 ctsio->kern_data_ptr; 5748 5749 defect_list_len = scsi_2btoul(header->defect_list_len); 5750 if (defect_list_len != 0) { 5751 ctl_set_invalid_field(ctsio, 5752 /*sks_valid*/ 1, 5753 /*command*/ 0, 5754 /*field*/ 2, 5755 /*bit_valid*/ 0, 5756 /*bit*/ 0); 5757 goto bailout; 5758 } 5759 } 5760 } 5761 5762 /* 5763 * The format command will clear out the "Medium format corrupted" 5764 * status if set by the configuration code. That status is really 5765 * just a way to notify the host that we have lost the media, and 5766 * get them to issue a command that will basically make them think 5767 * they're blowing away the media. 5768 */ 5769 mtx_lock(&lun->lun_lock); 5770 lun->flags &= ~CTL_LUN_INOPERABLE; 5771 mtx_unlock(&lun->lun_lock); 5772 5773 ctsio->scsi_status = SCSI_STATUS_OK; 5774 ctsio->io_hdr.status = CTL_SUCCESS; 5775 bailout: 5776 5777 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5778 free(ctsio->kern_data_ptr, M_CTL); 5779 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5780 } 5781 5782 ctl_done((union ctl_io *)ctsio); 5783 return (CTL_RETVAL_COMPLETE); 5784 } 5785 5786 int 5787 ctl_read_buffer(struct ctl_scsiio *ctsio) 5788 { 5789 struct scsi_read_buffer *cdb; 5790 struct ctl_lun *lun; 5791 int buffer_offset, len; 5792 static uint8_t descr[4]; 5793 static uint8_t echo_descr[4] = { 0 }; 5794 5795 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5796 5797 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5798 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5799 5800 if (lun->flags & CTL_LUN_PR_RESERVED) { 5801 uint32_t residx; 5802 5803 /* 5804 * XXX KDM need a lock here. 5805 */ 5806 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5807 if ((lun->res_type == SPR_TYPE_EX_AC 5808 && residx != lun->pr_res_idx) 5809 || ((lun->res_type == SPR_TYPE_EX_AC_RO 5810 || lun->res_type == SPR_TYPE_EX_AC_AR) 5811 && !lun->per_res[residx].registered)) { 5812 ctl_set_reservation_conflict(ctsio); 5813 ctl_done((union ctl_io *)ctsio); 5814 return (CTL_RETVAL_COMPLETE); 5815 } 5816 } 5817 5818 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA && 5819 (cdb->byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5820 (cdb->byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5821 ctl_set_invalid_field(ctsio, 5822 /*sks_valid*/ 1, 5823 /*command*/ 1, 5824 /*field*/ 1, 5825 /*bit_valid*/ 1, 5826 /*bit*/ 4); 5827 ctl_done((union ctl_io *)ctsio); 5828 return (CTL_RETVAL_COMPLETE); 5829 } 5830 5831 len = scsi_3btoul(cdb->length); 5832 buffer_offset = scsi_3btoul(cdb->offset); 5833 5834 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5835 ctl_set_invalid_field(ctsio, 5836 /*sks_valid*/ 1, 5837 /*command*/ 1, 5838 /*field*/ 6, 5839 /*bit_valid*/ 0, 5840 /*bit*/ 0); 5841 ctl_done((union ctl_io *)ctsio); 5842 return (CTL_RETVAL_COMPLETE); 5843 } 5844 5845 if ((cdb->byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5846 descr[0] = 0; 5847 scsi_ulto3b(sizeof(lun->write_buffer), &descr[1]); 5848 ctsio->kern_data_ptr = descr; 5849 len = min(len, sizeof(descr)); 5850 } else if ((cdb->byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5851 ctsio->kern_data_ptr = echo_descr; 5852 len = min(len, sizeof(echo_descr)); 5853 } else 5854 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5855 ctsio->kern_data_len = len; 5856 ctsio->kern_total_len = len; 5857 ctsio->kern_data_resid = 0; 5858 ctsio->kern_rel_offset = 0; 5859 ctsio->kern_sg_entries = 0; 5860 ctsio->be_move_done = ctl_config_move_done; 5861 ctl_datamove((union ctl_io *)ctsio); 5862 5863 return (CTL_RETVAL_COMPLETE); 5864 } 5865 5866 int 5867 ctl_write_buffer(struct ctl_scsiio *ctsio) 5868 { 5869 struct scsi_write_buffer *cdb; 5870 struct ctl_lun *lun; 5871 int buffer_offset, len; 5872 5873 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5874 5875 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5876 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5877 5878 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5879 ctl_set_invalid_field(ctsio, 5880 /*sks_valid*/ 1, 5881 /*command*/ 1, 5882 /*field*/ 1, 5883 /*bit_valid*/ 1, 5884 /*bit*/ 4); 5885 ctl_done((union ctl_io *)ctsio); 5886 return (CTL_RETVAL_COMPLETE); 5887 } 5888 5889 len = scsi_3btoul(cdb->length); 5890 buffer_offset = scsi_3btoul(cdb->offset); 5891 5892 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5893 ctl_set_invalid_field(ctsio, 5894 /*sks_valid*/ 1, 5895 /*command*/ 1, 5896 /*field*/ 6, 5897 /*bit_valid*/ 0, 5898 /*bit*/ 0); 5899 ctl_done((union ctl_io *)ctsio); 5900 return (CTL_RETVAL_COMPLETE); 5901 } 5902 5903 /* 5904 * If we've got a kernel request that hasn't been malloced yet, 5905 * malloc it and tell the caller the data buffer is here. 5906 */ 5907 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5908 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5909 ctsio->kern_data_len = len; 5910 ctsio->kern_total_len = len; 5911 ctsio->kern_data_resid = 0; 5912 ctsio->kern_rel_offset = 0; 5913 ctsio->kern_sg_entries = 0; 5914 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5915 ctsio->be_move_done = ctl_config_move_done; 5916 ctl_datamove((union ctl_io *)ctsio); 5917 5918 return (CTL_RETVAL_COMPLETE); 5919 } 5920 5921 ctl_done((union ctl_io *)ctsio); 5922 5923 return (CTL_RETVAL_COMPLETE); 5924 } 5925 5926 int 5927 ctl_write_same(struct ctl_scsiio *ctsio) 5928 { 5929 struct ctl_lun *lun; 5930 struct ctl_lba_len_flags *lbalen; 5931 uint64_t lba; 5932 uint32_t num_blocks; 5933 int len, retval; 5934 uint8_t byte2; 5935 5936 retval = CTL_RETVAL_COMPLETE; 5937 5938 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5939 5940 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5941 5942 switch (ctsio->cdb[0]) { 5943 case WRITE_SAME_10: { 5944 struct scsi_write_same_10 *cdb; 5945 5946 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5947 5948 lba = scsi_4btoul(cdb->addr); 5949 num_blocks = scsi_2btoul(cdb->length); 5950 byte2 = cdb->byte2; 5951 break; 5952 } 5953 case WRITE_SAME_16: { 5954 struct scsi_write_same_16 *cdb; 5955 5956 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5957 5958 lba = scsi_8btou64(cdb->addr); 5959 num_blocks = scsi_4btoul(cdb->length); 5960 byte2 = cdb->byte2; 5961 break; 5962 } 5963 default: 5964 /* 5965 * We got a command we don't support. This shouldn't 5966 * happen, commands should be filtered out above us. 5967 */ 5968 ctl_set_invalid_opcode(ctsio); 5969 ctl_done((union ctl_io *)ctsio); 5970 5971 return (CTL_RETVAL_COMPLETE); 5972 break; /* NOTREACHED */ 5973 } 5974 5975 /* 5976 * The first check is to make sure we're in bounds, the second 5977 * check is to catch wrap-around problems. If the lba + num blocks 5978 * is less than the lba, then we've wrapped around and the block 5979 * range is invalid anyway. 5980 */ 5981 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5982 || ((lba + num_blocks) < lba)) { 5983 ctl_set_lba_out_of_range(ctsio); 5984 ctl_done((union ctl_io *)ctsio); 5985 return (CTL_RETVAL_COMPLETE); 5986 } 5987 5988 /* Zero number of blocks means "to the last logical block" */ 5989 if (num_blocks == 0) { 5990 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5991 ctl_set_invalid_field(ctsio, 5992 /*sks_valid*/ 0, 5993 /*command*/ 1, 5994 /*field*/ 0, 5995 /*bit_valid*/ 0, 5996 /*bit*/ 0); 5997 ctl_done((union ctl_io *)ctsio); 5998 return (CTL_RETVAL_COMPLETE); 5999 } 6000 num_blocks = (lun->be_lun->maxlba + 1) - lba; 6001 } 6002 6003 len = lun->be_lun->blocksize; 6004 6005 /* 6006 * If we've got a kernel request that hasn't been malloced yet, 6007 * malloc it and tell the caller the data buffer is here. 6008 */ 6009 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6010 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6011 ctsio->kern_data_len = len; 6012 ctsio->kern_total_len = len; 6013 ctsio->kern_data_resid = 0; 6014 ctsio->kern_rel_offset = 0; 6015 ctsio->kern_sg_entries = 0; 6016 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6017 ctsio->be_move_done = ctl_config_move_done; 6018 ctl_datamove((union ctl_io *)ctsio); 6019 6020 return (CTL_RETVAL_COMPLETE); 6021 } 6022 6023 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6024 lbalen->lba = lba; 6025 lbalen->len = num_blocks; 6026 lbalen->flags = byte2; 6027 retval = lun->backend->config_write((union ctl_io *)ctsio); 6028 6029 return (retval); 6030 } 6031 6032 int 6033 ctl_unmap(struct ctl_scsiio *ctsio) 6034 { 6035 struct ctl_lun *lun; 6036 struct scsi_unmap *cdb; 6037 struct ctl_ptr_len_flags *ptrlen; 6038 struct scsi_unmap_header *hdr; 6039 struct scsi_unmap_desc *buf, *end; 6040 uint64_t lba; 6041 uint32_t num_blocks; 6042 int len, retval; 6043 uint8_t byte2; 6044 6045 retval = CTL_RETVAL_COMPLETE; 6046 6047 CTL_DEBUG_PRINT(("ctl_unmap\n")); 6048 6049 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6050 cdb = (struct scsi_unmap *)ctsio->cdb; 6051 6052 len = scsi_2btoul(cdb->length); 6053 byte2 = cdb->byte2; 6054 6055 /* 6056 * If we've got a kernel request that hasn't been malloced yet, 6057 * malloc it and tell the caller the data buffer is here. 6058 */ 6059 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6060 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6061 ctsio->kern_data_len = len; 6062 ctsio->kern_total_len = len; 6063 ctsio->kern_data_resid = 0; 6064 ctsio->kern_rel_offset = 0; 6065 ctsio->kern_sg_entries = 0; 6066 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6067 ctsio->be_move_done = ctl_config_move_done; 6068 ctl_datamove((union ctl_io *)ctsio); 6069 6070 return (CTL_RETVAL_COMPLETE); 6071 } 6072 6073 len = ctsio->kern_total_len - ctsio->kern_data_resid; 6074 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 6075 if (len < sizeof (*hdr) || 6076 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 6077 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 6078 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 6079 ctl_set_invalid_field(ctsio, 6080 /*sks_valid*/ 0, 6081 /*command*/ 0, 6082 /*field*/ 0, 6083 /*bit_valid*/ 0, 6084 /*bit*/ 0); 6085 ctl_done((union ctl_io *)ctsio); 6086 return (CTL_RETVAL_COMPLETE); 6087 } 6088 len = scsi_2btoul(hdr->desc_length); 6089 buf = (struct scsi_unmap_desc *)(hdr + 1); 6090 end = buf + len / sizeof(*buf); 6091 6092 ptrlen = (struct ctl_ptr_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6093 ptrlen->ptr = (void *)buf; 6094 ptrlen->len = len; 6095 ptrlen->flags = byte2; 6096 6097 for (; buf < end; buf++) { 6098 lba = scsi_8btou64(buf->lba); 6099 num_blocks = scsi_4btoul(buf->length); 6100 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 6101 || ((lba + num_blocks) < lba)) { 6102 ctl_set_lba_out_of_range(ctsio); 6103 ctl_done((union ctl_io *)ctsio); 6104 return (CTL_RETVAL_COMPLETE); 6105 } 6106 } 6107 6108 retval = lun->backend->config_write((union ctl_io *)ctsio); 6109 6110 return (retval); 6111 } 6112 6113 /* 6114 * Note that this function currently doesn't actually do anything inside 6115 * CTL to enforce things if the DQue bit is turned on. 6116 * 6117 * Also note that this function can't be used in the default case, because 6118 * the DQue bit isn't set in the changeable mask for the control mode page 6119 * anyway. This is just here as an example for how to implement a page 6120 * handler, and a placeholder in case we want to allow the user to turn 6121 * tagged queueing on and off. 6122 * 6123 * The D_SENSE bit handling is functional, however, and will turn 6124 * descriptor sense on and off for a given LUN. 6125 */ 6126 int 6127 ctl_control_page_handler(struct ctl_scsiio *ctsio, 6128 struct ctl_page_index *page_index, uint8_t *page_ptr) 6129 { 6130 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 6131 struct ctl_lun *lun; 6132 struct ctl_softc *softc; 6133 int set_ua; 6134 uint32_t initidx; 6135 6136 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6137 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6138 set_ua = 0; 6139 6140 user_cp = (struct scsi_control_page *)page_ptr; 6141 current_cp = (struct scsi_control_page *) 6142 (page_index->page_data + (page_index->page_len * 6143 CTL_PAGE_CURRENT)); 6144 saved_cp = (struct scsi_control_page *) 6145 (page_index->page_data + (page_index->page_len * 6146 CTL_PAGE_SAVED)); 6147 6148 softc = control_softc; 6149 6150 mtx_lock(&lun->lun_lock); 6151 if (((current_cp->rlec & SCP_DSENSE) == 0) 6152 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 6153 /* 6154 * Descriptor sense is currently turned off and the user 6155 * wants to turn it on. 6156 */ 6157 current_cp->rlec |= SCP_DSENSE; 6158 saved_cp->rlec |= SCP_DSENSE; 6159 lun->flags |= CTL_LUN_SENSE_DESC; 6160 set_ua = 1; 6161 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 6162 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 6163 /* 6164 * Descriptor sense is currently turned on, and the user 6165 * wants to turn it off. 6166 */ 6167 current_cp->rlec &= ~SCP_DSENSE; 6168 saved_cp->rlec &= ~SCP_DSENSE; 6169 lun->flags &= ~CTL_LUN_SENSE_DESC; 6170 set_ua = 1; 6171 } 6172 if (current_cp->queue_flags & SCP_QUEUE_DQUE) { 6173 if (user_cp->queue_flags & SCP_QUEUE_DQUE) { 6174 #ifdef NEEDTOPORT 6175 csevent_log(CSC_CTL | CSC_SHELF_SW | 6176 CTL_UNTAG_TO_UNTAG, 6177 csevent_LogType_Trace, 6178 csevent_Severity_Information, 6179 csevent_AlertLevel_Green, 6180 csevent_FRU_Firmware, 6181 csevent_FRU_Unknown, 6182 "Received untagged to untagged transition"); 6183 #endif /* NEEDTOPORT */ 6184 } else { 6185 #ifdef NEEDTOPORT 6186 csevent_log(CSC_CTL | CSC_SHELF_SW | 6187 CTL_UNTAG_TO_TAG, 6188 csevent_LogType_ConfigChange, 6189 csevent_Severity_Information, 6190 csevent_AlertLevel_Green, 6191 csevent_FRU_Firmware, 6192 csevent_FRU_Unknown, 6193 "Received untagged to tagged " 6194 "queueing transition"); 6195 #endif /* NEEDTOPORT */ 6196 6197 current_cp->queue_flags &= ~SCP_QUEUE_DQUE; 6198 saved_cp->queue_flags &= ~SCP_QUEUE_DQUE; 6199 set_ua = 1; 6200 } 6201 } else { 6202 if (user_cp->queue_flags & SCP_QUEUE_DQUE) { 6203 #ifdef NEEDTOPORT 6204 csevent_log(CSC_CTL | CSC_SHELF_SW | 6205 CTL_TAG_TO_UNTAG, 6206 csevent_LogType_ConfigChange, 6207 csevent_Severity_Warning, 6208 csevent_AlertLevel_Yellow, 6209 csevent_FRU_Firmware, 6210 csevent_FRU_Unknown, 6211 "Received tagged queueing to untagged " 6212 "transition"); 6213 #endif /* NEEDTOPORT */ 6214 6215 current_cp->queue_flags |= SCP_QUEUE_DQUE; 6216 saved_cp->queue_flags |= SCP_QUEUE_DQUE; 6217 set_ua = 1; 6218 } else { 6219 #ifdef NEEDTOPORT 6220 csevent_log(CSC_CTL | CSC_SHELF_SW | 6221 CTL_TAG_TO_TAG, 6222 csevent_LogType_Trace, 6223 csevent_Severity_Information, 6224 csevent_AlertLevel_Green, 6225 csevent_FRU_Firmware, 6226 csevent_FRU_Unknown, 6227 "Received tagged queueing to tagged " 6228 "queueing transition"); 6229 #endif /* NEEDTOPORT */ 6230 } 6231 } 6232 if (set_ua != 0) { 6233 int i; 6234 /* 6235 * Let other initiators know that the mode 6236 * parameters for this LUN have changed. 6237 */ 6238 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6239 if (i == initidx) 6240 continue; 6241 6242 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6243 } 6244 } 6245 mtx_unlock(&lun->lun_lock); 6246 6247 return (0); 6248 } 6249 6250 int 6251 ctl_power_sp_handler(struct ctl_scsiio *ctsio, 6252 struct ctl_page_index *page_index, uint8_t *page_ptr) 6253 { 6254 return (0); 6255 } 6256 6257 int 6258 ctl_power_sp_sense_handler(struct ctl_scsiio *ctsio, 6259 struct ctl_page_index *page_index, int pc) 6260 { 6261 struct copan_power_subpage *page; 6262 6263 page = (struct copan_power_subpage *)page_index->page_data + 6264 (page_index->page_len * pc); 6265 6266 switch (pc) { 6267 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6268 /* 6269 * We don't update the changable bits for this page. 6270 */ 6271 break; 6272 case SMS_PAGE_CTRL_CURRENT >> 6: 6273 case SMS_PAGE_CTRL_DEFAULT >> 6: 6274 case SMS_PAGE_CTRL_SAVED >> 6: 6275 #ifdef NEEDTOPORT 6276 ctl_update_power_subpage(page); 6277 #endif 6278 break; 6279 default: 6280 #ifdef NEEDTOPORT 6281 EPRINT(0, "Invalid PC %d!!", pc); 6282 #endif 6283 break; 6284 } 6285 return (0); 6286 } 6287 6288 6289 int 6290 ctl_aps_sp_handler(struct ctl_scsiio *ctsio, 6291 struct ctl_page_index *page_index, uint8_t *page_ptr) 6292 { 6293 struct copan_aps_subpage *user_sp; 6294 struct copan_aps_subpage *current_sp; 6295 union ctl_modepage_info *modepage_info; 6296 struct ctl_softc *softc; 6297 struct ctl_lun *lun; 6298 int retval; 6299 6300 retval = CTL_RETVAL_COMPLETE; 6301 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 6302 (page_index->page_len * CTL_PAGE_CURRENT)); 6303 softc = control_softc; 6304 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6305 6306 user_sp = (struct copan_aps_subpage *)page_ptr; 6307 6308 modepage_info = (union ctl_modepage_info *) 6309 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6310 6311 modepage_info->header.page_code = page_index->page_code & SMPH_PC_MASK; 6312 modepage_info->header.subpage = page_index->subpage; 6313 modepage_info->aps.lock_active = user_sp->lock_active; 6314 6315 mtx_lock(&softc->ctl_lock); 6316 6317 /* 6318 * If there is a request to lock the LUN and another LUN is locked 6319 * this is an error. If the requested LUN is already locked ignore 6320 * the request. If no LUN is locked attempt to lock it. 6321 * if there is a request to unlock the LUN and the LUN is currently 6322 * locked attempt to unlock it. Otherwise ignore the request. i.e. 6323 * if another LUN is locked or no LUN is locked. 6324 */ 6325 if (user_sp->lock_active & APS_LOCK_ACTIVE) { 6326 if (softc->aps_locked_lun == lun->lun) { 6327 /* 6328 * This LUN is already locked, so we're done. 6329 */ 6330 retval = CTL_RETVAL_COMPLETE; 6331 } else if (softc->aps_locked_lun == 0) { 6332 /* 6333 * No one has the lock, pass the request to the 6334 * backend. 6335 */ 6336 retval = lun->backend->config_write( 6337 (union ctl_io *)ctsio); 6338 } else { 6339 /* 6340 * Someone else has the lock, throw out the request. 6341 */ 6342 ctl_set_already_locked(ctsio); 6343 free(ctsio->kern_data_ptr, M_CTL); 6344 ctl_done((union ctl_io *)ctsio); 6345 6346 /* 6347 * Set the return value so that ctl_do_mode_select() 6348 * won't try to complete the command. We already 6349 * completed it here. 6350 */ 6351 retval = CTL_RETVAL_ERROR; 6352 } 6353 } else if (softc->aps_locked_lun == lun->lun) { 6354 /* 6355 * This LUN is locked, so pass the unlock request to the 6356 * backend. 6357 */ 6358 retval = lun->backend->config_write((union ctl_io *)ctsio); 6359 } 6360 mtx_unlock(&softc->ctl_lock); 6361 6362 return (retval); 6363 } 6364 6365 int 6366 ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 6367 struct ctl_page_index *page_index, 6368 uint8_t *page_ptr) 6369 { 6370 uint8_t *c; 6371 int i; 6372 6373 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 6374 ctl_time_io_secs = 6375 (c[0] << 8) | 6376 (c[1] << 0) | 6377 0; 6378 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 6379 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 6380 printf("page data:"); 6381 for (i=0; i<8; i++) 6382 printf(" %.2x",page_ptr[i]); 6383 printf("\n"); 6384 return (0); 6385 } 6386 6387 int 6388 ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 6389 struct ctl_page_index *page_index, 6390 int pc) 6391 { 6392 struct copan_debugconf_subpage *page; 6393 6394 page = (struct copan_debugconf_subpage *)page_index->page_data + 6395 (page_index->page_len * pc); 6396 6397 switch (pc) { 6398 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6399 case SMS_PAGE_CTRL_DEFAULT >> 6: 6400 case SMS_PAGE_CTRL_SAVED >> 6: 6401 /* 6402 * We don't update the changable or default bits for this page. 6403 */ 6404 break; 6405 case SMS_PAGE_CTRL_CURRENT >> 6: 6406 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 6407 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 6408 break; 6409 default: 6410 #ifdef NEEDTOPORT 6411 EPRINT(0, "Invalid PC %d!!", pc); 6412 #endif /* NEEDTOPORT */ 6413 break; 6414 } 6415 return (0); 6416 } 6417 6418 6419 static int 6420 ctl_do_mode_select(union ctl_io *io) 6421 { 6422 struct scsi_mode_page_header *page_header; 6423 struct ctl_page_index *page_index; 6424 struct ctl_scsiio *ctsio; 6425 int control_dev, page_len; 6426 int page_len_offset, page_len_size; 6427 union ctl_modepage_info *modepage_info; 6428 struct ctl_lun *lun; 6429 int *len_left, *len_used; 6430 int retval, i; 6431 6432 ctsio = &io->scsiio; 6433 page_index = NULL; 6434 page_len = 0; 6435 retval = CTL_RETVAL_COMPLETE; 6436 6437 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6438 6439 if (lun->be_lun->lun_type != T_DIRECT) 6440 control_dev = 1; 6441 else 6442 control_dev = 0; 6443 6444 modepage_info = (union ctl_modepage_info *) 6445 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6446 len_left = &modepage_info->header.len_left; 6447 len_used = &modepage_info->header.len_used; 6448 6449 do_next_page: 6450 6451 page_header = (struct scsi_mode_page_header *) 6452 (ctsio->kern_data_ptr + *len_used); 6453 6454 if (*len_left == 0) { 6455 free(ctsio->kern_data_ptr, M_CTL); 6456 ctl_set_success(ctsio); 6457 ctl_done((union ctl_io *)ctsio); 6458 return (CTL_RETVAL_COMPLETE); 6459 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6460 6461 free(ctsio->kern_data_ptr, M_CTL); 6462 ctl_set_param_len_error(ctsio); 6463 ctl_done((union ctl_io *)ctsio); 6464 return (CTL_RETVAL_COMPLETE); 6465 6466 } else if ((page_header->page_code & SMPH_SPF) 6467 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6468 6469 free(ctsio->kern_data_ptr, M_CTL); 6470 ctl_set_param_len_error(ctsio); 6471 ctl_done((union ctl_io *)ctsio); 6472 return (CTL_RETVAL_COMPLETE); 6473 } 6474 6475 6476 /* 6477 * XXX KDM should we do something with the block descriptor? 6478 */ 6479 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6480 6481 if ((control_dev != 0) 6482 && (lun->mode_pages.index[i].page_flags & 6483 CTL_PAGE_FLAG_DISK_ONLY)) 6484 continue; 6485 6486 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 6487 (page_header->page_code & SMPH_PC_MASK)) 6488 continue; 6489 6490 /* 6491 * If neither page has a subpage code, then we've got a 6492 * match. 6493 */ 6494 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 6495 && ((page_header->page_code & SMPH_SPF) == 0)) { 6496 page_index = &lun->mode_pages.index[i]; 6497 page_len = page_header->page_length; 6498 break; 6499 } 6500 6501 /* 6502 * If both pages have subpages, then the subpage numbers 6503 * have to match. 6504 */ 6505 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 6506 && (page_header->page_code & SMPH_SPF)) { 6507 struct scsi_mode_page_header_sp *sph; 6508 6509 sph = (struct scsi_mode_page_header_sp *)page_header; 6510 6511 if (lun->mode_pages.index[i].subpage == 6512 sph->subpage) { 6513 page_index = &lun->mode_pages.index[i]; 6514 page_len = scsi_2btoul(sph->page_length); 6515 break; 6516 } 6517 } 6518 } 6519 6520 /* 6521 * If we couldn't find the page, or if we don't have a mode select 6522 * handler for it, send back an error to the user. 6523 */ 6524 if ((page_index == NULL) 6525 || (page_index->select_handler == NULL)) { 6526 ctl_set_invalid_field(ctsio, 6527 /*sks_valid*/ 1, 6528 /*command*/ 0, 6529 /*field*/ *len_used, 6530 /*bit_valid*/ 0, 6531 /*bit*/ 0); 6532 free(ctsio->kern_data_ptr, M_CTL); 6533 ctl_done((union ctl_io *)ctsio); 6534 return (CTL_RETVAL_COMPLETE); 6535 } 6536 6537 if (page_index->page_code & SMPH_SPF) { 6538 page_len_offset = 2; 6539 page_len_size = 2; 6540 } else { 6541 page_len_size = 1; 6542 page_len_offset = 1; 6543 } 6544 6545 /* 6546 * If the length the initiator gives us isn't the one we specify in 6547 * the mode page header, or if they didn't specify enough data in 6548 * the CDB to avoid truncating this page, kick out the request. 6549 */ 6550 if ((page_len != (page_index->page_len - page_len_offset - 6551 page_len_size)) 6552 || (*len_left < page_index->page_len)) { 6553 6554 6555 ctl_set_invalid_field(ctsio, 6556 /*sks_valid*/ 1, 6557 /*command*/ 0, 6558 /*field*/ *len_used + page_len_offset, 6559 /*bit_valid*/ 0, 6560 /*bit*/ 0); 6561 free(ctsio->kern_data_ptr, M_CTL); 6562 ctl_done((union ctl_io *)ctsio); 6563 return (CTL_RETVAL_COMPLETE); 6564 } 6565 6566 /* 6567 * Run through the mode page, checking to make sure that the bits 6568 * the user changed are actually legal for him to change. 6569 */ 6570 for (i = 0; i < page_index->page_len; i++) { 6571 uint8_t *user_byte, *change_mask, *current_byte; 6572 int bad_bit; 6573 int j; 6574 6575 user_byte = (uint8_t *)page_header + i; 6576 change_mask = page_index->page_data + 6577 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6578 current_byte = page_index->page_data + 6579 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6580 6581 /* 6582 * Check to see whether the user set any bits in this byte 6583 * that he is not allowed to set. 6584 */ 6585 if ((*user_byte & ~(*change_mask)) == 6586 (*current_byte & ~(*change_mask))) 6587 continue; 6588 6589 /* 6590 * Go through bit by bit to determine which one is illegal. 6591 */ 6592 bad_bit = 0; 6593 for (j = 7; j >= 0; j--) { 6594 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6595 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6596 bad_bit = i; 6597 break; 6598 } 6599 } 6600 ctl_set_invalid_field(ctsio, 6601 /*sks_valid*/ 1, 6602 /*command*/ 0, 6603 /*field*/ *len_used + i, 6604 /*bit_valid*/ 1, 6605 /*bit*/ bad_bit); 6606 free(ctsio->kern_data_ptr, M_CTL); 6607 ctl_done((union ctl_io *)ctsio); 6608 return (CTL_RETVAL_COMPLETE); 6609 } 6610 6611 /* 6612 * Decrement these before we call the page handler, since we may 6613 * end up getting called back one way or another before the handler 6614 * returns to this context. 6615 */ 6616 *len_left -= page_index->page_len; 6617 *len_used += page_index->page_len; 6618 6619 retval = page_index->select_handler(ctsio, page_index, 6620 (uint8_t *)page_header); 6621 6622 /* 6623 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6624 * wait until this queued command completes to finish processing 6625 * the mode page. If it returns anything other than 6626 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6627 * already set the sense information, freed the data pointer, and 6628 * completed the io for us. 6629 */ 6630 if (retval != CTL_RETVAL_COMPLETE) 6631 goto bailout_no_done; 6632 6633 /* 6634 * If the initiator sent us more than one page, parse the next one. 6635 */ 6636 if (*len_left > 0) 6637 goto do_next_page; 6638 6639 ctl_set_success(ctsio); 6640 free(ctsio->kern_data_ptr, M_CTL); 6641 ctl_done((union ctl_io *)ctsio); 6642 6643 bailout_no_done: 6644 6645 return (CTL_RETVAL_COMPLETE); 6646 6647 } 6648 6649 int 6650 ctl_mode_select(struct ctl_scsiio *ctsio) 6651 { 6652 int param_len, pf, sp; 6653 int header_size, bd_len; 6654 int len_left, len_used; 6655 struct ctl_page_index *page_index; 6656 struct ctl_lun *lun; 6657 int control_dev, page_len; 6658 union ctl_modepage_info *modepage_info; 6659 int retval; 6660 6661 pf = 0; 6662 sp = 0; 6663 page_len = 0; 6664 len_used = 0; 6665 len_left = 0; 6666 retval = 0; 6667 bd_len = 0; 6668 page_index = NULL; 6669 6670 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6671 6672 if (lun->be_lun->lun_type != T_DIRECT) 6673 control_dev = 1; 6674 else 6675 control_dev = 0; 6676 6677 switch (ctsio->cdb[0]) { 6678 case MODE_SELECT_6: { 6679 struct scsi_mode_select_6 *cdb; 6680 6681 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6682 6683 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6684 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6685 6686 param_len = cdb->length; 6687 header_size = sizeof(struct scsi_mode_header_6); 6688 break; 6689 } 6690 case MODE_SELECT_10: { 6691 struct scsi_mode_select_10 *cdb; 6692 6693 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6694 6695 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6696 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6697 6698 param_len = scsi_2btoul(cdb->length); 6699 header_size = sizeof(struct scsi_mode_header_10); 6700 break; 6701 } 6702 default: 6703 ctl_set_invalid_opcode(ctsio); 6704 ctl_done((union ctl_io *)ctsio); 6705 return (CTL_RETVAL_COMPLETE); 6706 break; /* NOTREACHED */ 6707 } 6708 6709 /* 6710 * From SPC-3: 6711 * "A parameter list length of zero indicates that the Data-Out Buffer 6712 * shall be empty. This condition shall not be considered as an error." 6713 */ 6714 if (param_len == 0) { 6715 ctl_set_success(ctsio); 6716 ctl_done((union ctl_io *)ctsio); 6717 return (CTL_RETVAL_COMPLETE); 6718 } 6719 6720 /* 6721 * Since we'll hit this the first time through, prior to 6722 * allocation, we don't need to free a data buffer here. 6723 */ 6724 if (param_len < header_size) { 6725 ctl_set_param_len_error(ctsio); 6726 ctl_done((union ctl_io *)ctsio); 6727 return (CTL_RETVAL_COMPLETE); 6728 } 6729 6730 /* 6731 * Allocate the data buffer and grab the user's data. In theory, 6732 * we shouldn't have to sanity check the parameter list length here 6733 * because the maximum size is 64K. We should be able to malloc 6734 * that much without too many problems. 6735 */ 6736 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6737 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6738 ctsio->kern_data_len = param_len; 6739 ctsio->kern_total_len = param_len; 6740 ctsio->kern_data_resid = 0; 6741 ctsio->kern_rel_offset = 0; 6742 ctsio->kern_sg_entries = 0; 6743 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6744 ctsio->be_move_done = ctl_config_move_done; 6745 ctl_datamove((union ctl_io *)ctsio); 6746 6747 return (CTL_RETVAL_COMPLETE); 6748 } 6749 6750 switch (ctsio->cdb[0]) { 6751 case MODE_SELECT_6: { 6752 struct scsi_mode_header_6 *mh6; 6753 6754 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6755 bd_len = mh6->blk_desc_len; 6756 break; 6757 } 6758 case MODE_SELECT_10: { 6759 struct scsi_mode_header_10 *mh10; 6760 6761 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6762 bd_len = scsi_2btoul(mh10->blk_desc_len); 6763 break; 6764 } 6765 default: 6766 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6767 break; 6768 } 6769 6770 if (param_len < (header_size + bd_len)) { 6771 free(ctsio->kern_data_ptr, M_CTL); 6772 ctl_set_param_len_error(ctsio); 6773 ctl_done((union ctl_io *)ctsio); 6774 return (CTL_RETVAL_COMPLETE); 6775 } 6776 6777 /* 6778 * Set the IO_CONT flag, so that if this I/O gets passed to 6779 * ctl_config_write_done(), it'll get passed back to 6780 * ctl_do_mode_select() for further processing, or completion if 6781 * we're all done. 6782 */ 6783 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6784 ctsio->io_cont = ctl_do_mode_select; 6785 6786 modepage_info = (union ctl_modepage_info *) 6787 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6788 6789 memset(modepage_info, 0, sizeof(*modepage_info)); 6790 6791 len_left = param_len - header_size - bd_len; 6792 len_used = header_size + bd_len; 6793 6794 modepage_info->header.len_left = len_left; 6795 modepage_info->header.len_used = len_used; 6796 6797 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6798 } 6799 6800 int 6801 ctl_mode_sense(struct ctl_scsiio *ctsio) 6802 { 6803 struct ctl_lun *lun; 6804 int pc, page_code, dbd, llba, subpage; 6805 int alloc_len, page_len, header_len, total_len; 6806 struct scsi_mode_block_descr *block_desc; 6807 struct ctl_page_index *page_index; 6808 int control_dev; 6809 6810 dbd = 0; 6811 llba = 0; 6812 block_desc = NULL; 6813 page_index = NULL; 6814 6815 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6816 6817 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6818 6819 if (lun->be_lun->lun_type != T_DIRECT) 6820 control_dev = 1; 6821 else 6822 control_dev = 0; 6823 6824 if (lun->flags & CTL_LUN_PR_RESERVED) { 6825 uint32_t residx; 6826 6827 /* 6828 * XXX KDM need a lock here. 6829 */ 6830 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 6831 if ((lun->res_type == SPR_TYPE_EX_AC 6832 && residx != lun->pr_res_idx) 6833 || ((lun->res_type == SPR_TYPE_EX_AC_RO 6834 || lun->res_type == SPR_TYPE_EX_AC_AR) 6835 && !lun->per_res[residx].registered)) { 6836 ctl_set_reservation_conflict(ctsio); 6837 ctl_done((union ctl_io *)ctsio); 6838 return (CTL_RETVAL_COMPLETE); 6839 } 6840 } 6841 6842 switch (ctsio->cdb[0]) { 6843 case MODE_SENSE_6: { 6844 struct scsi_mode_sense_6 *cdb; 6845 6846 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6847 6848 header_len = sizeof(struct scsi_mode_hdr_6); 6849 if (cdb->byte2 & SMS_DBD) 6850 dbd = 1; 6851 else 6852 header_len += sizeof(struct scsi_mode_block_descr); 6853 6854 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6855 page_code = cdb->page & SMS_PAGE_CODE; 6856 subpage = cdb->subpage; 6857 alloc_len = cdb->length; 6858 break; 6859 } 6860 case MODE_SENSE_10: { 6861 struct scsi_mode_sense_10 *cdb; 6862 6863 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6864 6865 header_len = sizeof(struct scsi_mode_hdr_10); 6866 6867 if (cdb->byte2 & SMS_DBD) 6868 dbd = 1; 6869 else 6870 header_len += sizeof(struct scsi_mode_block_descr); 6871 if (cdb->byte2 & SMS10_LLBAA) 6872 llba = 1; 6873 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6874 page_code = cdb->page & SMS_PAGE_CODE; 6875 subpage = cdb->subpage; 6876 alloc_len = scsi_2btoul(cdb->length); 6877 break; 6878 } 6879 default: 6880 ctl_set_invalid_opcode(ctsio); 6881 ctl_done((union ctl_io *)ctsio); 6882 return (CTL_RETVAL_COMPLETE); 6883 break; /* NOTREACHED */ 6884 } 6885 6886 /* 6887 * We have to make a first pass through to calculate the size of 6888 * the pages that match the user's query. Then we allocate enough 6889 * memory to hold it, and actually copy the data into the buffer. 6890 */ 6891 switch (page_code) { 6892 case SMS_ALL_PAGES_PAGE: { 6893 int i; 6894 6895 page_len = 0; 6896 6897 /* 6898 * At the moment, values other than 0 and 0xff here are 6899 * reserved according to SPC-3. 6900 */ 6901 if ((subpage != SMS_SUBPAGE_PAGE_0) 6902 && (subpage != SMS_SUBPAGE_ALL)) { 6903 ctl_set_invalid_field(ctsio, 6904 /*sks_valid*/ 1, 6905 /*command*/ 1, 6906 /*field*/ 3, 6907 /*bit_valid*/ 0, 6908 /*bit*/ 0); 6909 ctl_done((union ctl_io *)ctsio); 6910 return (CTL_RETVAL_COMPLETE); 6911 } 6912 6913 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6914 if ((control_dev != 0) 6915 && (lun->mode_pages.index[i].page_flags & 6916 CTL_PAGE_FLAG_DISK_ONLY)) 6917 continue; 6918 6919 /* 6920 * We don't use this subpage if the user didn't 6921 * request all subpages. 6922 */ 6923 if ((lun->mode_pages.index[i].subpage != 0) 6924 && (subpage == SMS_SUBPAGE_PAGE_0)) 6925 continue; 6926 6927 #if 0 6928 printf("found page %#x len %d\n", 6929 lun->mode_pages.index[i].page_code & 6930 SMPH_PC_MASK, 6931 lun->mode_pages.index[i].page_len); 6932 #endif 6933 page_len += lun->mode_pages.index[i].page_len; 6934 } 6935 break; 6936 } 6937 default: { 6938 int i; 6939 6940 page_len = 0; 6941 6942 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6943 /* Look for the right page code */ 6944 if ((lun->mode_pages.index[i].page_code & 6945 SMPH_PC_MASK) != page_code) 6946 continue; 6947 6948 /* Look for the right subpage or the subpage wildcard*/ 6949 if ((lun->mode_pages.index[i].subpage != subpage) 6950 && (subpage != SMS_SUBPAGE_ALL)) 6951 continue; 6952 6953 /* Make sure the page is supported for this dev type */ 6954 if ((control_dev != 0) 6955 && (lun->mode_pages.index[i].page_flags & 6956 CTL_PAGE_FLAG_DISK_ONLY)) 6957 continue; 6958 6959 #if 0 6960 printf("found page %#x len %d\n", 6961 lun->mode_pages.index[i].page_code & 6962 SMPH_PC_MASK, 6963 lun->mode_pages.index[i].page_len); 6964 #endif 6965 6966 page_len += lun->mode_pages.index[i].page_len; 6967 } 6968 6969 if (page_len == 0) { 6970 ctl_set_invalid_field(ctsio, 6971 /*sks_valid*/ 1, 6972 /*command*/ 1, 6973 /*field*/ 2, 6974 /*bit_valid*/ 1, 6975 /*bit*/ 5); 6976 ctl_done((union ctl_io *)ctsio); 6977 return (CTL_RETVAL_COMPLETE); 6978 } 6979 break; 6980 } 6981 } 6982 6983 total_len = header_len + page_len; 6984 #if 0 6985 printf("header_len = %d, page_len = %d, total_len = %d\n", 6986 header_len, page_len, total_len); 6987 #endif 6988 6989 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6990 ctsio->kern_sg_entries = 0; 6991 ctsio->kern_data_resid = 0; 6992 ctsio->kern_rel_offset = 0; 6993 if (total_len < alloc_len) { 6994 ctsio->residual = alloc_len - total_len; 6995 ctsio->kern_data_len = total_len; 6996 ctsio->kern_total_len = total_len; 6997 } else { 6998 ctsio->residual = 0; 6999 ctsio->kern_data_len = alloc_len; 7000 ctsio->kern_total_len = alloc_len; 7001 } 7002 7003 switch (ctsio->cdb[0]) { 7004 case MODE_SENSE_6: { 7005 struct scsi_mode_hdr_6 *header; 7006 7007 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 7008 7009 header->datalen = ctl_min(total_len - 1, 254); 7010 7011 if (dbd) 7012 header->block_descr_len = 0; 7013 else 7014 header->block_descr_len = 7015 sizeof(struct scsi_mode_block_descr); 7016 block_desc = (struct scsi_mode_block_descr *)&header[1]; 7017 break; 7018 } 7019 case MODE_SENSE_10: { 7020 struct scsi_mode_hdr_10 *header; 7021 int datalen; 7022 7023 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 7024 7025 datalen = ctl_min(total_len - 2, 65533); 7026 scsi_ulto2b(datalen, header->datalen); 7027 if (dbd) 7028 scsi_ulto2b(0, header->block_descr_len); 7029 else 7030 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 7031 header->block_descr_len); 7032 block_desc = (struct scsi_mode_block_descr *)&header[1]; 7033 break; 7034 } 7035 default: 7036 panic("invalid CDB type %#x", ctsio->cdb[0]); 7037 break; /* NOTREACHED */ 7038 } 7039 7040 /* 7041 * If we've got a disk, use its blocksize in the block 7042 * descriptor. Otherwise, just set it to 0. 7043 */ 7044 if (dbd == 0) { 7045 if (control_dev != 0) 7046 scsi_ulto3b(lun->be_lun->blocksize, 7047 block_desc->block_len); 7048 else 7049 scsi_ulto3b(0, block_desc->block_len); 7050 } 7051 7052 switch (page_code) { 7053 case SMS_ALL_PAGES_PAGE: { 7054 int i, data_used; 7055 7056 data_used = header_len; 7057 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7058 struct ctl_page_index *page_index; 7059 7060 page_index = &lun->mode_pages.index[i]; 7061 7062 if ((control_dev != 0) 7063 && (page_index->page_flags & 7064 CTL_PAGE_FLAG_DISK_ONLY)) 7065 continue; 7066 7067 /* 7068 * We don't use this subpage if the user didn't 7069 * request all subpages. We already checked (above) 7070 * to make sure the user only specified a subpage 7071 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 7072 */ 7073 if ((page_index->subpage != 0) 7074 && (subpage == SMS_SUBPAGE_PAGE_0)) 7075 continue; 7076 7077 /* 7078 * Call the handler, if it exists, to update the 7079 * page to the latest values. 7080 */ 7081 if (page_index->sense_handler != NULL) 7082 page_index->sense_handler(ctsio, page_index,pc); 7083 7084 memcpy(ctsio->kern_data_ptr + data_used, 7085 page_index->page_data + 7086 (page_index->page_len * pc), 7087 page_index->page_len); 7088 data_used += page_index->page_len; 7089 } 7090 break; 7091 } 7092 default: { 7093 int i, data_used; 7094 7095 data_used = header_len; 7096 7097 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7098 struct ctl_page_index *page_index; 7099 7100 page_index = &lun->mode_pages.index[i]; 7101 7102 /* Look for the right page code */ 7103 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 7104 continue; 7105 7106 /* Look for the right subpage or the subpage wildcard*/ 7107 if ((page_index->subpage != subpage) 7108 && (subpage != SMS_SUBPAGE_ALL)) 7109 continue; 7110 7111 /* Make sure the page is supported for this dev type */ 7112 if ((control_dev != 0) 7113 && (page_index->page_flags & 7114 CTL_PAGE_FLAG_DISK_ONLY)) 7115 continue; 7116 7117 /* 7118 * Call the handler, if it exists, to update the 7119 * page to the latest values. 7120 */ 7121 if (page_index->sense_handler != NULL) 7122 page_index->sense_handler(ctsio, page_index,pc); 7123 7124 memcpy(ctsio->kern_data_ptr + data_used, 7125 page_index->page_data + 7126 (page_index->page_len * pc), 7127 page_index->page_len); 7128 data_used += page_index->page_len; 7129 } 7130 break; 7131 } 7132 } 7133 7134 ctsio->scsi_status = SCSI_STATUS_OK; 7135 7136 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7137 ctsio->be_move_done = ctl_config_move_done; 7138 ctl_datamove((union ctl_io *)ctsio); 7139 7140 return (CTL_RETVAL_COMPLETE); 7141 } 7142 7143 int 7144 ctl_read_capacity(struct ctl_scsiio *ctsio) 7145 { 7146 struct scsi_read_capacity *cdb; 7147 struct scsi_read_capacity_data *data; 7148 struct ctl_lun *lun; 7149 uint32_t lba; 7150 7151 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 7152 7153 cdb = (struct scsi_read_capacity *)ctsio->cdb; 7154 7155 lba = scsi_4btoul(cdb->addr); 7156 if (((cdb->pmi & SRC_PMI) == 0) 7157 && (lba != 0)) { 7158 ctl_set_invalid_field(/*ctsio*/ ctsio, 7159 /*sks_valid*/ 1, 7160 /*command*/ 1, 7161 /*field*/ 2, 7162 /*bit_valid*/ 0, 7163 /*bit*/ 0); 7164 ctl_done((union ctl_io *)ctsio); 7165 return (CTL_RETVAL_COMPLETE); 7166 } 7167 7168 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7169 7170 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7171 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 7172 ctsio->residual = 0; 7173 ctsio->kern_data_len = sizeof(*data); 7174 ctsio->kern_total_len = sizeof(*data); 7175 ctsio->kern_data_resid = 0; 7176 ctsio->kern_rel_offset = 0; 7177 ctsio->kern_sg_entries = 0; 7178 7179 /* 7180 * If the maximum LBA is greater than 0xfffffffe, the user must 7181 * issue a SERVICE ACTION IN (16) command, with the read capacity 7182 * serivce action set. 7183 */ 7184 if (lun->be_lun->maxlba > 0xfffffffe) 7185 scsi_ulto4b(0xffffffff, data->addr); 7186 else 7187 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 7188 7189 /* 7190 * XXX KDM this may not be 512 bytes... 7191 */ 7192 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7193 7194 ctsio->scsi_status = SCSI_STATUS_OK; 7195 7196 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7197 ctsio->be_move_done = ctl_config_move_done; 7198 ctl_datamove((union ctl_io *)ctsio); 7199 7200 return (CTL_RETVAL_COMPLETE); 7201 } 7202 7203 int 7204 ctl_read_capacity_16(struct ctl_scsiio *ctsio) 7205 { 7206 struct scsi_read_capacity_16 *cdb; 7207 struct scsi_read_capacity_data_long *data; 7208 struct ctl_lun *lun; 7209 uint64_t lba; 7210 uint32_t alloc_len; 7211 7212 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 7213 7214 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 7215 7216 alloc_len = scsi_4btoul(cdb->alloc_len); 7217 lba = scsi_8btou64(cdb->addr); 7218 7219 if ((cdb->reladr & SRC16_PMI) 7220 && (lba != 0)) { 7221 ctl_set_invalid_field(/*ctsio*/ ctsio, 7222 /*sks_valid*/ 1, 7223 /*command*/ 1, 7224 /*field*/ 2, 7225 /*bit_valid*/ 0, 7226 /*bit*/ 0); 7227 ctl_done((union ctl_io *)ctsio); 7228 return (CTL_RETVAL_COMPLETE); 7229 } 7230 7231 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7232 7233 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7234 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 7235 7236 if (sizeof(*data) < alloc_len) { 7237 ctsio->residual = alloc_len - sizeof(*data); 7238 ctsio->kern_data_len = sizeof(*data); 7239 ctsio->kern_total_len = sizeof(*data); 7240 } else { 7241 ctsio->residual = 0; 7242 ctsio->kern_data_len = alloc_len; 7243 ctsio->kern_total_len = alloc_len; 7244 } 7245 ctsio->kern_data_resid = 0; 7246 ctsio->kern_rel_offset = 0; 7247 ctsio->kern_sg_entries = 0; 7248 7249 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7250 /* XXX KDM this may not be 512 bytes... */ 7251 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7252 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7253 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7254 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7255 data->lalba_lbp[0] |= SRC16_LBPME; 7256 7257 ctsio->scsi_status = SCSI_STATUS_OK; 7258 7259 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7260 ctsio->be_move_done = ctl_config_move_done; 7261 ctl_datamove((union ctl_io *)ctsio); 7262 7263 return (CTL_RETVAL_COMPLETE); 7264 } 7265 7266 int 7267 ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7268 { 7269 struct scsi_maintenance_in *cdb; 7270 int retval; 7271 int alloc_len, ext, total_len = 0, g, p, pc, pg; 7272 int num_target_port_groups, num_target_ports, single; 7273 struct ctl_lun *lun; 7274 struct ctl_softc *softc; 7275 struct ctl_port *port; 7276 struct scsi_target_group_data *rtg_ptr; 7277 struct scsi_target_group_data_extended *rtg_ext_ptr; 7278 struct scsi_target_port_group_descriptor *tpg_desc; 7279 7280 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7281 7282 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7283 softc = control_softc; 7284 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7285 7286 retval = CTL_RETVAL_COMPLETE; 7287 7288 switch (cdb->byte2 & STG_PDF_MASK) { 7289 case STG_PDF_LENGTH: 7290 ext = 0; 7291 break; 7292 case STG_PDF_EXTENDED: 7293 ext = 1; 7294 break; 7295 default: 7296 ctl_set_invalid_field(/*ctsio*/ ctsio, 7297 /*sks_valid*/ 1, 7298 /*command*/ 1, 7299 /*field*/ 2, 7300 /*bit_valid*/ 1, 7301 /*bit*/ 5); 7302 ctl_done((union ctl_io *)ctsio); 7303 return(retval); 7304 } 7305 7306 single = ctl_is_single; 7307 if (single) 7308 num_target_port_groups = 1; 7309 else 7310 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7311 num_target_ports = 0; 7312 mtx_lock(&softc->ctl_lock); 7313 STAILQ_FOREACH(port, &softc->port_list, links) { 7314 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7315 continue; 7316 if (ctl_map_lun_back(port->targ_port, lun->lun) >= CTL_MAX_LUNS) 7317 continue; 7318 num_target_ports++; 7319 } 7320 mtx_unlock(&softc->ctl_lock); 7321 7322 if (ext) 7323 total_len = sizeof(struct scsi_target_group_data_extended); 7324 else 7325 total_len = sizeof(struct scsi_target_group_data); 7326 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7327 num_target_port_groups + 7328 sizeof(struct scsi_target_port_descriptor) * 7329 num_target_ports * num_target_port_groups; 7330 7331 alloc_len = scsi_4btoul(cdb->length); 7332 7333 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7334 7335 ctsio->kern_sg_entries = 0; 7336 7337 if (total_len < alloc_len) { 7338 ctsio->residual = alloc_len - total_len; 7339 ctsio->kern_data_len = total_len; 7340 ctsio->kern_total_len = total_len; 7341 } else { 7342 ctsio->residual = 0; 7343 ctsio->kern_data_len = alloc_len; 7344 ctsio->kern_total_len = alloc_len; 7345 } 7346 ctsio->kern_data_resid = 0; 7347 ctsio->kern_rel_offset = 0; 7348 7349 if (ext) { 7350 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7351 ctsio->kern_data_ptr; 7352 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7353 rtg_ext_ptr->format_type = 0x10; 7354 rtg_ext_ptr->implicit_transition_time = 0; 7355 tpg_desc = &rtg_ext_ptr->groups[0]; 7356 } else { 7357 rtg_ptr = (struct scsi_target_group_data *) 7358 ctsio->kern_data_ptr; 7359 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7360 tpg_desc = &rtg_ptr->groups[0]; 7361 } 7362 7363 pg = ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS; 7364 mtx_lock(&softc->ctl_lock); 7365 for (g = 0; g < num_target_port_groups; g++) { 7366 if (g == pg) 7367 tpg_desc->pref_state = TPG_PRIMARY | 7368 TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7369 else 7370 tpg_desc->pref_state = 7371 TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7372 tpg_desc->support = TPG_AO_SUP; 7373 if (!single) 7374 tpg_desc->support |= TPG_AN_SUP; 7375 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7376 tpg_desc->status = TPG_IMPLICIT; 7377 pc = 0; 7378 STAILQ_FOREACH(port, &softc->port_list, links) { 7379 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7380 continue; 7381 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 7382 CTL_MAX_LUNS) 7383 continue; 7384 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 7385 scsi_ulto2b(p, tpg_desc->descriptors[pc]. 7386 relative_target_port_identifier); 7387 pc++; 7388 } 7389 tpg_desc->target_port_count = pc; 7390 tpg_desc = (struct scsi_target_port_group_descriptor *) 7391 &tpg_desc->descriptors[pc]; 7392 } 7393 mtx_unlock(&softc->ctl_lock); 7394 7395 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7396 ctsio->be_move_done = ctl_config_move_done; 7397 7398 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7399 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7400 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7401 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7402 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7403 7404 ctl_datamove((union ctl_io *)ctsio); 7405 return(retval); 7406 } 7407 7408 int 7409 ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7410 { 7411 struct ctl_lun *lun; 7412 struct scsi_report_supported_opcodes *cdb; 7413 const struct ctl_cmd_entry *entry, *sentry; 7414 struct scsi_report_supported_opcodes_all *all; 7415 struct scsi_report_supported_opcodes_descr *descr; 7416 struct scsi_report_supported_opcodes_one *one; 7417 int retval; 7418 int alloc_len, total_len; 7419 int opcode, service_action, i, j, num; 7420 7421 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7422 7423 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7424 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7425 7426 retval = CTL_RETVAL_COMPLETE; 7427 7428 opcode = cdb->requested_opcode; 7429 service_action = scsi_2btoul(cdb->requested_service_action); 7430 switch (cdb->options & RSO_OPTIONS_MASK) { 7431 case RSO_OPTIONS_ALL: 7432 num = 0; 7433 for (i = 0; i < 256; i++) { 7434 entry = &ctl_cmd_table[i]; 7435 if (entry->flags & CTL_CMD_FLAG_SA5) { 7436 for (j = 0; j < 32; j++) { 7437 sentry = &((const struct ctl_cmd_entry *) 7438 entry->execute)[j]; 7439 if (ctl_cmd_applicable( 7440 lun->be_lun->lun_type, sentry)) 7441 num++; 7442 } 7443 } else { 7444 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7445 entry)) 7446 num++; 7447 } 7448 } 7449 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7450 num * sizeof(struct scsi_report_supported_opcodes_descr); 7451 break; 7452 case RSO_OPTIONS_OC: 7453 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7454 ctl_set_invalid_field(/*ctsio*/ ctsio, 7455 /*sks_valid*/ 1, 7456 /*command*/ 1, 7457 /*field*/ 2, 7458 /*bit_valid*/ 1, 7459 /*bit*/ 2); 7460 ctl_done((union ctl_io *)ctsio); 7461 return (CTL_RETVAL_COMPLETE); 7462 } 7463 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7464 break; 7465 case RSO_OPTIONS_OC_SA: 7466 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7467 service_action >= 32) { 7468 ctl_set_invalid_field(/*ctsio*/ ctsio, 7469 /*sks_valid*/ 1, 7470 /*command*/ 1, 7471 /*field*/ 2, 7472 /*bit_valid*/ 1, 7473 /*bit*/ 2); 7474 ctl_done((union ctl_io *)ctsio); 7475 return (CTL_RETVAL_COMPLETE); 7476 } 7477 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7478 break; 7479 default: 7480 ctl_set_invalid_field(/*ctsio*/ ctsio, 7481 /*sks_valid*/ 1, 7482 /*command*/ 1, 7483 /*field*/ 2, 7484 /*bit_valid*/ 1, 7485 /*bit*/ 2); 7486 ctl_done((union ctl_io *)ctsio); 7487 return (CTL_RETVAL_COMPLETE); 7488 } 7489 7490 alloc_len = scsi_4btoul(cdb->length); 7491 7492 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7493 7494 ctsio->kern_sg_entries = 0; 7495 7496 if (total_len < alloc_len) { 7497 ctsio->residual = alloc_len - total_len; 7498 ctsio->kern_data_len = total_len; 7499 ctsio->kern_total_len = total_len; 7500 } else { 7501 ctsio->residual = 0; 7502 ctsio->kern_data_len = alloc_len; 7503 ctsio->kern_total_len = alloc_len; 7504 } 7505 ctsio->kern_data_resid = 0; 7506 ctsio->kern_rel_offset = 0; 7507 7508 switch (cdb->options & RSO_OPTIONS_MASK) { 7509 case RSO_OPTIONS_ALL: 7510 all = (struct scsi_report_supported_opcodes_all *) 7511 ctsio->kern_data_ptr; 7512 num = 0; 7513 for (i = 0; i < 256; i++) { 7514 entry = &ctl_cmd_table[i]; 7515 if (entry->flags & CTL_CMD_FLAG_SA5) { 7516 for (j = 0; j < 32; j++) { 7517 sentry = &((const struct ctl_cmd_entry *) 7518 entry->execute)[j]; 7519 if (!ctl_cmd_applicable( 7520 lun->be_lun->lun_type, sentry)) 7521 continue; 7522 descr = &all->descr[num++]; 7523 descr->opcode = i; 7524 scsi_ulto2b(j, descr->service_action); 7525 descr->flags = RSO_SERVACTV; 7526 scsi_ulto2b(sentry->length, 7527 descr->cdb_length); 7528 } 7529 } else { 7530 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7531 entry)) 7532 continue; 7533 descr = &all->descr[num++]; 7534 descr->opcode = i; 7535 scsi_ulto2b(0, descr->service_action); 7536 descr->flags = 0; 7537 scsi_ulto2b(entry->length, descr->cdb_length); 7538 } 7539 } 7540 scsi_ulto4b( 7541 num * sizeof(struct scsi_report_supported_opcodes_descr), 7542 all->length); 7543 break; 7544 case RSO_OPTIONS_OC: 7545 one = (struct scsi_report_supported_opcodes_one *) 7546 ctsio->kern_data_ptr; 7547 entry = &ctl_cmd_table[opcode]; 7548 goto fill_one; 7549 case RSO_OPTIONS_OC_SA: 7550 one = (struct scsi_report_supported_opcodes_one *) 7551 ctsio->kern_data_ptr; 7552 entry = &ctl_cmd_table[opcode]; 7553 entry = &((const struct ctl_cmd_entry *) 7554 entry->execute)[service_action]; 7555 fill_one: 7556 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7557 one->support = 3; 7558 scsi_ulto2b(entry->length, one->cdb_length); 7559 one->cdb_usage[0] = opcode; 7560 memcpy(&one->cdb_usage[1], entry->usage, 7561 entry->length - 1); 7562 } else 7563 one->support = 1; 7564 break; 7565 } 7566 7567 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7568 ctsio->be_move_done = ctl_config_move_done; 7569 7570 ctl_datamove((union ctl_io *)ctsio); 7571 return(retval); 7572 } 7573 7574 int 7575 ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7576 { 7577 struct ctl_lun *lun; 7578 struct scsi_report_supported_tmf *cdb; 7579 struct scsi_report_supported_tmf_data *data; 7580 int retval; 7581 int alloc_len, total_len; 7582 7583 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7584 7585 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7586 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7587 7588 retval = CTL_RETVAL_COMPLETE; 7589 7590 total_len = sizeof(struct scsi_report_supported_tmf_data); 7591 alloc_len = scsi_4btoul(cdb->length); 7592 7593 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7594 7595 ctsio->kern_sg_entries = 0; 7596 7597 if (total_len < alloc_len) { 7598 ctsio->residual = alloc_len - total_len; 7599 ctsio->kern_data_len = total_len; 7600 ctsio->kern_total_len = total_len; 7601 } else { 7602 ctsio->residual = 0; 7603 ctsio->kern_data_len = alloc_len; 7604 ctsio->kern_total_len = alloc_len; 7605 } 7606 ctsio->kern_data_resid = 0; 7607 ctsio->kern_rel_offset = 0; 7608 7609 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7610 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_TRS; 7611 data->byte2 |= RST_ITNRS; 7612 7613 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7614 ctsio->be_move_done = ctl_config_move_done; 7615 7616 ctl_datamove((union ctl_io *)ctsio); 7617 return (retval); 7618 } 7619 7620 int 7621 ctl_report_timestamp(struct ctl_scsiio *ctsio) 7622 { 7623 struct ctl_lun *lun; 7624 struct scsi_report_timestamp *cdb; 7625 struct scsi_report_timestamp_data *data; 7626 struct timeval tv; 7627 int64_t timestamp; 7628 int retval; 7629 int alloc_len, total_len; 7630 7631 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7632 7633 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7634 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7635 7636 retval = CTL_RETVAL_COMPLETE; 7637 7638 total_len = sizeof(struct scsi_report_timestamp_data); 7639 alloc_len = scsi_4btoul(cdb->length); 7640 7641 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7642 7643 ctsio->kern_sg_entries = 0; 7644 7645 if (total_len < alloc_len) { 7646 ctsio->residual = alloc_len - total_len; 7647 ctsio->kern_data_len = total_len; 7648 ctsio->kern_total_len = total_len; 7649 } else { 7650 ctsio->residual = 0; 7651 ctsio->kern_data_len = alloc_len; 7652 ctsio->kern_total_len = alloc_len; 7653 } 7654 ctsio->kern_data_resid = 0; 7655 ctsio->kern_rel_offset = 0; 7656 7657 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7658 scsi_ulto2b(sizeof(*data) - 2, data->length); 7659 data->origin = RTS_ORIG_OUTSIDE; 7660 getmicrotime(&tv); 7661 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7662 scsi_ulto4b(timestamp >> 16, data->timestamp); 7663 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7664 7665 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7666 ctsio->be_move_done = ctl_config_move_done; 7667 7668 ctl_datamove((union ctl_io *)ctsio); 7669 return (retval); 7670 } 7671 7672 int 7673 ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7674 { 7675 struct scsi_per_res_in *cdb; 7676 int alloc_len, total_len = 0; 7677 /* struct scsi_per_res_in_rsrv in_data; */ 7678 struct ctl_lun *lun; 7679 struct ctl_softc *softc; 7680 7681 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7682 7683 softc = control_softc; 7684 7685 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7686 7687 alloc_len = scsi_2btoul(cdb->length); 7688 7689 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7690 7691 retry: 7692 mtx_lock(&lun->lun_lock); 7693 switch (cdb->action) { 7694 case SPRI_RK: /* read keys */ 7695 total_len = sizeof(struct scsi_per_res_in_keys) + 7696 lun->pr_key_count * 7697 sizeof(struct scsi_per_res_key); 7698 break; 7699 case SPRI_RR: /* read reservation */ 7700 if (lun->flags & CTL_LUN_PR_RESERVED) 7701 total_len = sizeof(struct scsi_per_res_in_rsrv); 7702 else 7703 total_len = sizeof(struct scsi_per_res_in_header); 7704 break; 7705 case SPRI_RC: /* report capabilities */ 7706 total_len = sizeof(struct scsi_per_res_cap); 7707 break; 7708 case SPRI_RS: /* read full status */ 7709 total_len = sizeof(struct scsi_per_res_in_header) + 7710 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7711 lun->pr_key_count; 7712 break; 7713 default: 7714 panic("Invalid PR type %x", cdb->action); 7715 } 7716 mtx_unlock(&lun->lun_lock); 7717 7718 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 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 7730 ctsio->kern_data_resid = 0; 7731 ctsio->kern_rel_offset = 0; 7732 ctsio->kern_sg_entries = 0; 7733 7734 mtx_lock(&lun->lun_lock); 7735 switch (cdb->action) { 7736 case SPRI_RK: { // read keys 7737 struct scsi_per_res_in_keys *res_keys; 7738 int i, key_count; 7739 7740 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7741 7742 /* 7743 * We had to drop the lock to allocate our buffer, which 7744 * leaves time for someone to come in with another 7745 * persistent reservation. (That is unlikely, though, 7746 * since this should be the only persistent reservation 7747 * command active right now.) 7748 */ 7749 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7750 (lun->pr_key_count * 7751 sizeof(struct scsi_per_res_key)))){ 7752 mtx_unlock(&lun->lun_lock); 7753 free(ctsio->kern_data_ptr, M_CTL); 7754 printf("%s: reservation length changed, retrying\n", 7755 __func__); 7756 goto retry; 7757 } 7758 7759 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7760 7761 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7762 lun->pr_key_count, res_keys->header.length); 7763 7764 for (i = 0, key_count = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7765 if (!lun->per_res[i].registered) 7766 continue; 7767 7768 /* 7769 * We used lun->pr_key_count to calculate the 7770 * size to allocate. If it turns out the number of 7771 * initiators with the registered flag set is 7772 * larger than that (i.e. they haven't been kept in 7773 * sync), we've got a problem. 7774 */ 7775 if (key_count >= lun->pr_key_count) { 7776 #ifdef NEEDTOPORT 7777 csevent_log(CSC_CTL | CSC_SHELF_SW | 7778 CTL_PR_ERROR, 7779 csevent_LogType_Fault, 7780 csevent_AlertLevel_Yellow, 7781 csevent_FRU_ShelfController, 7782 csevent_FRU_Firmware, 7783 csevent_FRU_Unknown, 7784 "registered keys %d >= key " 7785 "count %d", key_count, 7786 lun->pr_key_count); 7787 #endif 7788 key_count++; 7789 continue; 7790 } 7791 memcpy(res_keys->keys[key_count].key, 7792 lun->per_res[i].res_key.key, 7793 ctl_min(sizeof(res_keys->keys[key_count].key), 7794 sizeof(lun->per_res[i].res_key))); 7795 key_count++; 7796 } 7797 break; 7798 } 7799 case SPRI_RR: { // read reservation 7800 struct scsi_per_res_in_rsrv *res; 7801 int tmp_len, header_only; 7802 7803 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7804 7805 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7806 7807 if (lun->flags & CTL_LUN_PR_RESERVED) 7808 { 7809 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7810 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7811 res->header.length); 7812 header_only = 0; 7813 } else { 7814 tmp_len = sizeof(struct scsi_per_res_in_header); 7815 scsi_ulto4b(0, res->header.length); 7816 header_only = 1; 7817 } 7818 7819 /* 7820 * We had to drop the lock to allocate our buffer, which 7821 * leaves time for someone to come in with another 7822 * persistent reservation. (That is unlikely, though, 7823 * since this should be the only persistent reservation 7824 * command active right now.) 7825 */ 7826 if (tmp_len != total_len) { 7827 mtx_unlock(&lun->lun_lock); 7828 free(ctsio->kern_data_ptr, M_CTL); 7829 printf("%s: reservation status changed, retrying\n", 7830 __func__); 7831 goto retry; 7832 } 7833 7834 /* 7835 * No reservation held, so we're done. 7836 */ 7837 if (header_only != 0) 7838 break; 7839 7840 /* 7841 * If the registration is an All Registrants type, the key 7842 * is 0, since it doesn't really matter. 7843 */ 7844 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7845 memcpy(res->data.reservation, 7846 &lun->per_res[lun->pr_res_idx].res_key, 7847 sizeof(struct scsi_per_res_key)); 7848 } 7849 res->data.scopetype = lun->res_type; 7850 break; 7851 } 7852 case SPRI_RC: //report capabilities 7853 { 7854 struct scsi_per_res_cap *res_cap; 7855 uint16_t type_mask; 7856 7857 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7858 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7859 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_3; 7860 type_mask = SPRI_TM_WR_EX_AR | 7861 SPRI_TM_EX_AC_RO | 7862 SPRI_TM_WR_EX_RO | 7863 SPRI_TM_EX_AC | 7864 SPRI_TM_WR_EX | 7865 SPRI_TM_EX_AC_AR; 7866 scsi_ulto2b(type_mask, res_cap->type_mask); 7867 break; 7868 } 7869 case SPRI_RS: { // read full status 7870 struct scsi_per_res_in_full *res_status; 7871 struct scsi_per_res_in_full_desc *res_desc; 7872 struct ctl_port *port; 7873 int i, len; 7874 7875 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7876 7877 /* 7878 * We had to drop the lock to allocate our buffer, which 7879 * leaves time for someone to come in with another 7880 * persistent reservation. (That is unlikely, though, 7881 * since this should be the only persistent reservation 7882 * command active right now.) 7883 */ 7884 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7885 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7886 lun->pr_key_count)){ 7887 mtx_unlock(&lun->lun_lock); 7888 free(ctsio->kern_data_ptr, M_CTL); 7889 printf("%s: reservation length changed, retrying\n", 7890 __func__); 7891 goto retry; 7892 } 7893 7894 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 7895 7896 res_desc = &res_status->desc[0]; 7897 for (i = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7898 if (!lun->per_res[i].registered) 7899 continue; 7900 7901 memcpy(&res_desc->res_key, &lun->per_res[i].res_key.key, 7902 sizeof(res_desc->res_key)); 7903 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7904 (lun->pr_res_idx == i || 7905 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7906 res_desc->flags = SPRI_FULL_R_HOLDER; 7907 res_desc->scopetype = lun->res_type; 7908 } 7909 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7910 res_desc->rel_trgt_port_id); 7911 len = 0; 7912 port = softc->ctl_ports[i / CTL_MAX_INIT_PER_PORT]; 7913 if (port != NULL) 7914 len = ctl_create_iid(port, 7915 i % CTL_MAX_INIT_PER_PORT, 7916 res_desc->transport_id); 7917 scsi_ulto4b(len, res_desc->additional_length); 7918 res_desc = (struct scsi_per_res_in_full_desc *) 7919 &res_desc->transport_id[len]; 7920 } 7921 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7922 res_status->header.length); 7923 break; 7924 } 7925 default: 7926 /* 7927 * This is a bug, because we just checked for this above, 7928 * and should have returned an error. 7929 */ 7930 panic("Invalid PR type %x", cdb->action); 7931 break; /* NOTREACHED */ 7932 } 7933 mtx_unlock(&lun->lun_lock); 7934 7935 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7936 ctsio->be_move_done = ctl_config_move_done; 7937 7938 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7939 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7940 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7941 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7942 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7943 7944 ctl_datamove((union ctl_io *)ctsio); 7945 7946 return (CTL_RETVAL_COMPLETE); 7947 } 7948 7949 /* 7950 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7951 * it should return. 7952 */ 7953 static int 7954 ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7955 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7956 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7957 struct scsi_per_res_out_parms* param) 7958 { 7959 union ctl_ha_msg persis_io; 7960 int retval, i; 7961 int isc_retval; 7962 7963 retval = 0; 7964 7965 mtx_lock(&lun->lun_lock); 7966 if (sa_res_key == 0) { 7967 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7968 /* validate scope and type */ 7969 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7970 SPR_LU_SCOPE) { 7971 mtx_unlock(&lun->lun_lock); 7972 ctl_set_invalid_field(/*ctsio*/ ctsio, 7973 /*sks_valid*/ 1, 7974 /*command*/ 1, 7975 /*field*/ 2, 7976 /*bit_valid*/ 1, 7977 /*bit*/ 4); 7978 ctl_done((union ctl_io *)ctsio); 7979 return (1); 7980 } 7981 7982 if (type>8 || type==2 || type==4 || type==0) { 7983 mtx_unlock(&lun->lun_lock); 7984 ctl_set_invalid_field(/*ctsio*/ ctsio, 7985 /*sks_valid*/ 1, 7986 /*command*/ 1, 7987 /*field*/ 2, 7988 /*bit_valid*/ 1, 7989 /*bit*/ 0); 7990 ctl_done((union ctl_io *)ctsio); 7991 return (1); 7992 } 7993 7994 /* temporarily unregister this nexus */ 7995 lun->per_res[residx].registered = 0; 7996 7997 /* 7998 * Unregister everybody else and build UA for 7999 * them 8000 */ 8001 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8002 if (lun->per_res[i].registered == 0) 8003 continue; 8004 8005 if (!persis_offset 8006 && i <CTL_MAX_INITIATORS) 8007 lun->pending_ua[i] |= 8008 CTL_UA_REG_PREEMPT; 8009 else if (persis_offset 8010 && i >= persis_offset) 8011 lun->pending_ua[i-persis_offset] |= 8012 CTL_UA_REG_PREEMPT; 8013 lun->per_res[i].registered = 0; 8014 memset(&lun->per_res[i].res_key, 0, 8015 sizeof(struct scsi_per_res_key)); 8016 } 8017 lun->per_res[residx].registered = 1; 8018 lun->pr_key_count = 1; 8019 lun->res_type = type; 8020 if (lun->res_type != SPR_TYPE_WR_EX_AR 8021 && lun->res_type != SPR_TYPE_EX_AC_AR) 8022 lun->pr_res_idx = residx; 8023 8024 /* send msg to other side */ 8025 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8026 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8027 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8028 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8029 persis_io.pr.pr_info.res_type = type; 8030 memcpy(persis_io.pr.pr_info.sa_res_key, 8031 param->serv_act_res_key, 8032 sizeof(param->serv_act_res_key)); 8033 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8034 &persis_io, sizeof(persis_io), 0)) > 8035 CTL_HA_STATUS_SUCCESS) { 8036 printf("CTL:Persis Out error returned " 8037 "from ctl_ha_msg_send %d\n", 8038 isc_retval); 8039 } 8040 } else { 8041 /* not all registrants */ 8042 mtx_unlock(&lun->lun_lock); 8043 free(ctsio->kern_data_ptr, M_CTL); 8044 ctl_set_invalid_field(ctsio, 8045 /*sks_valid*/ 1, 8046 /*command*/ 0, 8047 /*field*/ 8, 8048 /*bit_valid*/ 0, 8049 /*bit*/ 0); 8050 ctl_done((union ctl_io *)ctsio); 8051 return (1); 8052 } 8053 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8054 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 8055 int found = 0; 8056 8057 if (res_key == sa_res_key) { 8058 /* special case */ 8059 /* 8060 * The spec implies this is not good but doesn't 8061 * say what to do. There are two choices either 8062 * generate a res conflict or check condition 8063 * with illegal field in parameter data. Since 8064 * that is what is done when the sa_res_key is 8065 * zero I'll take that approach since this has 8066 * to do with the sa_res_key. 8067 */ 8068 mtx_unlock(&lun->lun_lock); 8069 free(ctsio->kern_data_ptr, M_CTL); 8070 ctl_set_invalid_field(ctsio, 8071 /*sks_valid*/ 1, 8072 /*command*/ 0, 8073 /*field*/ 8, 8074 /*bit_valid*/ 0, 8075 /*bit*/ 0); 8076 ctl_done((union ctl_io *)ctsio); 8077 return (1); 8078 } 8079 8080 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8081 if (lun->per_res[i].registered 8082 && memcmp(param->serv_act_res_key, 8083 lun->per_res[i].res_key.key, 8084 sizeof(struct scsi_per_res_key)) != 0) 8085 continue; 8086 8087 found = 1; 8088 lun->per_res[i].registered = 0; 8089 memset(&lun->per_res[i].res_key, 0, 8090 sizeof(struct scsi_per_res_key)); 8091 lun->pr_key_count--; 8092 8093 if (!persis_offset && i < CTL_MAX_INITIATORS) 8094 lun->pending_ua[i] |= CTL_UA_REG_PREEMPT; 8095 else if (persis_offset && i >= persis_offset) 8096 lun->pending_ua[i-persis_offset] |= 8097 CTL_UA_REG_PREEMPT; 8098 } 8099 if (!found) { 8100 mtx_unlock(&lun->lun_lock); 8101 free(ctsio->kern_data_ptr, M_CTL); 8102 ctl_set_reservation_conflict(ctsio); 8103 ctl_done((union ctl_io *)ctsio); 8104 return (CTL_RETVAL_COMPLETE); 8105 } 8106 /* send msg to other side */ 8107 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8108 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8109 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8110 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8111 persis_io.pr.pr_info.res_type = type; 8112 memcpy(persis_io.pr.pr_info.sa_res_key, 8113 param->serv_act_res_key, 8114 sizeof(param->serv_act_res_key)); 8115 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8116 &persis_io, sizeof(persis_io), 0)) > 8117 CTL_HA_STATUS_SUCCESS) { 8118 printf("CTL:Persis Out error returned from " 8119 "ctl_ha_msg_send %d\n", isc_retval); 8120 } 8121 } else { 8122 /* Reserved but not all registrants */ 8123 /* sa_res_key is res holder */ 8124 if (memcmp(param->serv_act_res_key, 8125 lun->per_res[lun->pr_res_idx].res_key.key, 8126 sizeof(struct scsi_per_res_key)) == 0) { 8127 /* validate scope and type */ 8128 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8129 SPR_LU_SCOPE) { 8130 mtx_unlock(&lun->lun_lock); 8131 ctl_set_invalid_field(/*ctsio*/ ctsio, 8132 /*sks_valid*/ 1, 8133 /*command*/ 1, 8134 /*field*/ 2, 8135 /*bit_valid*/ 1, 8136 /*bit*/ 4); 8137 ctl_done((union ctl_io *)ctsio); 8138 return (1); 8139 } 8140 8141 if (type>8 || type==2 || type==4 || type==0) { 8142 mtx_unlock(&lun->lun_lock); 8143 ctl_set_invalid_field(/*ctsio*/ ctsio, 8144 /*sks_valid*/ 1, 8145 /*command*/ 1, 8146 /*field*/ 2, 8147 /*bit_valid*/ 1, 8148 /*bit*/ 0); 8149 ctl_done((union ctl_io *)ctsio); 8150 return (1); 8151 } 8152 8153 /* 8154 * Do the following: 8155 * if sa_res_key != res_key remove all 8156 * registrants w/sa_res_key and generate UA 8157 * for these registrants(Registrations 8158 * Preempted) if it wasn't an exclusive 8159 * reservation generate UA(Reservations 8160 * Preempted) for all other registered nexuses 8161 * if the type has changed. Establish the new 8162 * reservation and holder. If res_key and 8163 * sa_res_key are the same do the above 8164 * except don't unregister the res holder. 8165 */ 8166 8167 /* 8168 * Temporarily unregister so it won't get 8169 * removed or UA generated 8170 */ 8171 lun->per_res[residx].registered = 0; 8172 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8173 if (lun->per_res[i].registered == 0) 8174 continue; 8175 8176 if (memcmp(param->serv_act_res_key, 8177 lun->per_res[i].res_key.key, 8178 sizeof(struct scsi_per_res_key)) == 0) { 8179 lun->per_res[i].registered = 0; 8180 memset(&lun->per_res[i].res_key, 8181 0, 8182 sizeof(struct scsi_per_res_key)); 8183 lun->pr_key_count--; 8184 8185 if (!persis_offset 8186 && i < CTL_MAX_INITIATORS) 8187 lun->pending_ua[i] |= 8188 CTL_UA_REG_PREEMPT; 8189 else if (persis_offset 8190 && i >= persis_offset) 8191 lun->pending_ua[i-persis_offset] |= 8192 CTL_UA_REG_PREEMPT; 8193 } else if (type != lun->res_type 8194 && (lun->res_type == SPR_TYPE_WR_EX_RO 8195 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 8196 if (!persis_offset 8197 && i < CTL_MAX_INITIATORS) 8198 lun->pending_ua[i] |= 8199 CTL_UA_RES_RELEASE; 8200 else if (persis_offset 8201 && i >= persis_offset) 8202 lun->pending_ua[ 8203 i-persis_offset] |= 8204 CTL_UA_RES_RELEASE; 8205 } 8206 } 8207 lun->per_res[residx].registered = 1; 8208 lun->res_type = type; 8209 if (lun->res_type != SPR_TYPE_WR_EX_AR 8210 && lun->res_type != SPR_TYPE_EX_AC_AR) 8211 lun->pr_res_idx = residx; 8212 else 8213 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8214 8215 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8216 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8217 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8218 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8219 persis_io.pr.pr_info.res_type = type; 8220 memcpy(persis_io.pr.pr_info.sa_res_key, 8221 param->serv_act_res_key, 8222 sizeof(param->serv_act_res_key)); 8223 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8224 &persis_io, sizeof(persis_io), 0)) > 8225 CTL_HA_STATUS_SUCCESS) { 8226 printf("CTL:Persis Out error returned " 8227 "from ctl_ha_msg_send %d\n", 8228 isc_retval); 8229 } 8230 } else { 8231 /* 8232 * sa_res_key is not the res holder just 8233 * remove registrants 8234 */ 8235 int found=0; 8236 8237 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8238 if (memcmp(param->serv_act_res_key, 8239 lun->per_res[i].res_key.key, 8240 sizeof(struct scsi_per_res_key)) != 0) 8241 continue; 8242 8243 found = 1; 8244 lun->per_res[i].registered = 0; 8245 memset(&lun->per_res[i].res_key, 0, 8246 sizeof(struct scsi_per_res_key)); 8247 lun->pr_key_count--; 8248 8249 if (!persis_offset 8250 && i < CTL_MAX_INITIATORS) 8251 lun->pending_ua[i] |= 8252 CTL_UA_REG_PREEMPT; 8253 else if (persis_offset 8254 && i >= persis_offset) 8255 lun->pending_ua[i-persis_offset] |= 8256 CTL_UA_REG_PREEMPT; 8257 } 8258 8259 if (!found) { 8260 mtx_unlock(&lun->lun_lock); 8261 free(ctsio->kern_data_ptr, M_CTL); 8262 ctl_set_reservation_conflict(ctsio); 8263 ctl_done((union ctl_io *)ctsio); 8264 return (1); 8265 } 8266 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8267 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8268 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8269 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8270 persis_io.pr.pr_info.res_type = type; 8271 memcpy(persis_io.pr.pr_info.sa_res_key, 8272 param->serv_act_res_key, 8273 sizeof(param->serv_act_res_key)); 8274 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8275 &persis_io, sizeof(persis_io), 0)) > 8276 CTL_HA_STATUS_SUCCESS) { 8277 printf("CTL:Persis Out error returned " 8278 "from ctl_ha_msg_send %d\n", 8279 isc_retval); 8280 } 8281 } 8282 } 8283 8284 lun->PRGeneration++; 8285 mtx_unlock(&lun->lun_lock); 8286 8287 return (retval); 8288 } 8289 8290 static void 8291 ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8292 { 8293 int i; 8294 8295 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8296 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8297 || memcmp(&lun->per_res[lun->pr_res_idx].res_key, 8298 msg->pr.pr_info.sa_res_key, 8299 sizeof(struct scsi_per_res_key)) != 0) { 8300 uint64_t sa_res_key; 8301 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8302 8303 if (sa_res_key == 0) { 8304 /* temporarily unregister this nexus */ 8305 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8306 8307 /* 8308 * Unregister everybody else and build UA for 8309 * them 8310 */ 8311 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8312 if (lun->per_res[i].registered == 0) 8313 continue; 8314 8315 if (!persis_offset 8316 && i < CTL_MAX_INITIATORS) 8317 lun->pending_ua[i] |= 8318 CTL_UA_REG_PREEMPT; 8319 else if (persis_offset && i >= persis_offset) 8320 lun->pending_ua[i - persis_offset] |= 8321 CTL_UA_REG_PREEMPT; 8322 lun->per_res[i].registered = 0; 8323 memset(&lun->per_res[i].res_key, 0, 8324 sizeof(struct scsi_per_res_key)); 8325 } 8326 8327 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8328 lun->pr_key_count = 1; 8329 lun->res_type = msg->pr.pr_info.res_type; 8330 if (lun->res_type != SPR_TYPE_WR_EX_AR 8331 && lun->res_type != SPR_TYPE_EX_AC_AR) 8332 lun->pr_res_idx = msg->pr.pr_info.residx; 8333 } else { 8334 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8335 if (memcmp(msg->pr.pr_info.sa_res_key, 8336 lun->per_res[i].res_key.key, 8337 sizeof(struct scsi_per_res_key)) != 0) 8338 continue; 8339 8340 lun->per_res[i].registered = 0; 8341 memset(&lun->per_res[i].res_key, 0, 8342 sizeof(struct scsi_per_res_key)); 8343 lun->pr_key_count--; 8344 8345 if (!persis_offset 8346 && i < persis_offset) 8347 lun->pending_ua[i] |= 8348 CTL_UA_REG_PREEMPT; 8349 else if (persis_offset 8350 && i >= persis_offset) 8351 lun->pending_ua[i - persis_offset] |= 8352 CTL_UA_REG_PREEMPT; 8353 } 8354 } 8355 } else { 8356 /* 8357 * Temporarily unregister so it won't get removed 8358 * or UA generated 8359 */ 8360 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8361 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8362 if (lun->per_res[i].registered == 0) 8363 continue; 8364 8365 if (memcmp(msg->pr.pr_info.sa_res_key, 8366 lun->per_res[i].res_key.key, 8367 sizeof(struct scsi_per_res_key)) == 0) { 8368 lun->per_res[i].registered = 0; 8369 memset(&lun->per_res[i].res_key, 0, 8370 sizeof(struct scsi_per_res_key)); 8371 lun->pr_key_count--; 8372 if (!persis_offset 8373 && i < CTL_MAX_INITIATORS) 8374 lun->pending_ua[i] |= 8375 CTL_UA_REG_PREEMPT; 8376 else if (persis_offset 8377 && i >= persis_offset) 8378 lun->pending_ua[i - persis_offset] |= 8379 CTL_UA_REG_PREEMPT; 8380 } else if (msg->pr.pr_info.res_type != lun->res_type 8381 && (lun->res_type == SPR_TYPE_WR_EX_RO 8382 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8383 if (!persis_offset 8384 && i < persis_offset) 8385 lun->pending_ua[i] |= 8386 CTL_UA_RES_RELEASE; 8387 else if (persis_offset 8388 && i >= persis_offset) 8389 lun->pending_ua[i - persis_offset] |= 8390 CTL_UA_RES_RELEASE; 8391 } 8392 } 8393 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8394 lun->res_type = msg->pr.pr_info.res_type; 8395 if (lun->res_type != SPR_TYPE_WR_EX_AR 8396 && lun->res_type != SPR_TYPE_EX_AC_AR) 8397 lun->pr_res_idx = msg->pr.pr_info.residx; 8398 else 8399 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8400 } 8401 lun->PRGeneration++; 8402 8403 } 8404 8405 8406 int 8407 ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8408 { 8409 int retval; 8410 int isc_retval; 8411 u_int32_t param_len; 8412 struct scsi_per_res_out *cdb; 8413 struct ctl_lun *lun; 8414 struct scsi_per_res_out_parms* param; 8415 struct ctl_softc *softc; 8416 uint32_t residx; 8417 uint64_t res_key, sa_res_key; 8418 uint8_t type; 8419 union ctl_ha_msg persis_io; 8420 int i; 8421 8422 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8423 8424 retval = CTL_RETVAL_COMPLETE; 8425 8426 softc = control_softc; 8427 8428 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8429 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8430 8431 /* 8432 * We only support whole-LUN scope. The scope & type are ignored for 8433 * register, register and ignore existing key and clear. 8434 * We sometimes ignore scope and type on preempts too!! 8435 * Verify reservation type here as well. 8436 */ 8437 type = cdb->scope_type & SPR_TYPE_MASK; 8438 if ((cdb->action == SPRO_RESERVE) 8439 || (cdb->action == SPRO_RELEASE)) { 8440 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8441 ctl_set_invalid_field(/*ctsio*/ ctsio, 8442 /*sks_valid*/ 1, 8443 /*command*/ 1, 8444 /*field*/ 2, 8445 /*bit_valid*/ 1, 8446 /*bit*/ 4); 8447 ctl_done((union ctl_io *)ctsio); 8448 return (CTL_RETVAL_COMPLETE); 8449 } 8450 8451 if (type>8 || type==2 || type==4 || type==0) { 8452 ctl_set_invalid_field(/*ctsio*/ ctsio, 8453 /*sks_valid*/ 1, 8454 /*command*/ 1, 8455 /*field*/ 2, 8456 /*bit_valid*/ 1, 8457 /*bit*/ 0); 8458 ctl_done((union ctl_io *)ctsio); 8459 return (CTL_RETVAL_COMPLETE); 8460 } 8461 } 8462 8463 param_len = scsi_4btoul(cdb->length); 8464 8465 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8466 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8467 ctsio->kern_data_len = param_len; 8468 ctsio->kern_total_len = param_len; 8469 ctsio->kern_data_resid = 0; 8470 ctsio->kern_rel_offset = 0; 8471 ctsio->kern_sg_entries = 0; 8472 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8473 ctsio->be_move_done = ctl_config_move_done; 8474 ctl_datamove((union ctl_io *)ctsio); 8475 8476 return (CTL_RETVAL_COMPLETE); 8477 } 8478 8479 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8480 8481 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8482 res_key = scsi_8btou64(param->res_key.key); 8483 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8484 8485 /* 8486 * Validate the reservation key here except for SPRO_REG_IGNO 8487 * This must be done for all other service actions 8488 */ 8489 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8490 mtx_lock(&lun->lun_lock); 8491 if (lun->per_res[residx].registered) { 8492 if (memcmp(param->res_key.key, 8493 lun->per_res[residx].res_key.key, 8494 ctl_min(sizeof(param->res_key), 8495 sizeof(lun->per_res[residx].res_key))) != 0) { 8496 /* 8497 * The current key passed in doesn't match 8498 * the one the initiator previously 8499 * registered. 8500 */ 8501 mtx_unlock(&lun->lun_lock); 8502 free(ctsio->kern_data_ptr, M_CTL); 8503 ctl_set_reservation_conflict(ctsio); 8504 ctl_done((union ctl_io *)ctsio); 8505 return (CTL_RETVAL_COMPLETE); 8506 } 8507 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8508 /* 8509 * We are not registered 8510 */ 8511 mtx_unlock(&lun->lun_lock); 8512 free(ctsio->kern_data_ptr, M_CTL); 8513 ctl_set_reservation_conflict(ctsio); 8514 ctl_done((union ctl_io *)ctsio); 8515 return (CTL_RETVAL_COMPLETE); 8516 } else if (res_key != 0) { 8517 /* 8518 * We are not registered and trying to register but 8519 * the register key isn't zero. 8520 */ 8521 mtx_unlock(&lun->lun_lock); 8522 free(ctsio->kern_data_ptr, M_CTL); 8523 ctl_set_reservation_conflict(ctsio); 8524 ctl_done((union ctl_io *)ctsio); 8525 return (CTL_RETVAL_COMPLETE); 8526 } 8527 mtx_unlock(&lun->lun_lock); 8528 } 8529 8530 switch (cdb->action & SPRO_ACTION_MASK) { 8531 case SPRO_REGISTER: 8532 case SPRO_REG_IGNO: { 8533 8534 #if 0 8535 printf("Registration received\n"); 8536 #endif 8537 8538 /* 8539 * We don't support any of these options, as we report in 8540 * the read capabilities request (see 8541 * ctl_persistent_reserve_in(), above). 8542 */ 8543 if ((param->flags & SPR_SPEC_I_PT) 8544 || (param->flags & SPR_ALL_TG_PT) 8545 || (param->flags & SPR_APTPL)) { 8546 int bit_ptr; 8547 8548 if (param->flags & SPR_APTPL) 8549 bit_ptr = 0; 8550 else if (param->flags & SPR_ALL_TG_PT) 8551 bit_ptr = 2; 8552 else /* SPR_SPEC_I_PT */ 8553 bit_ptr = 3; 8554 8555 free(ctsio->kern_data_ptr, M_CTL); 8556 ctl_set_invalid_field(ctsio, 8557 /*sks_valid*/ 1, 8558 /*command*/ 0, 8559 /*field*/ 20, 8560 /*bit_valid*/ 1, 8561 /*bit*/ bit_ptr); 8562 ctl_done((union ctl_io *)ctsio); 8563 return (CTL_RETVAL_COMPLETE); 8564 } 8565 8566 mtx_lock(&lun->lun_lock); 8567 8568 /* 8569 * The initiator wants to clear the 8570 * key/unregister. 8571 */ 8572 if (sa_res_key == 0) { 8573 if ((res_key == 0 8574 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8575 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8576 && !lun->per_res[residx].registered)) { 8577 mtx_unlock(&lun->lun_lock); 8578 goto done; 8579 } 8580 8581 lun->per_res[residx].registered = 0; 8582 memset(&lun->per_res[residx].res_key, 8583 0, sizeof(lun->per_res[residx].res_key)); 8584 lun->pr_key_count--; 8585 8586 if (residx == lun->pr_res_idx) { 8587 lun->flags &= ~CTL_LUN_PR_RESERVED; 8588 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8589 8590 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8591 || lun->res_type == SPR_TYPE_EX_AC_RO) 8592 && lun->pr_key_count) { 8593 /* 8594 * If the reservation is a registrants 8595 * only type we need to generate a UA 8596 * for other registered inits. The 8597 * sense code should be RESERVATIONS 8598 * RELEASED 8599 */ 8600 8601 for (i = 0; i < CTL_MAX_INITIATORS;i++){ 8602 if (lun->per_res[ 8603 i+persis_offset].registered 8604 == 0) 8605 continue; 8606 lun->pending_ua[i] |= 8607 CTL_UA_RES_RELEASE; 8608 } 8609 } 8610 lun->res_type = 0; 8611 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8612 if (lun->pr_key_count==0) { 8613 lun->flags &= ~CTL_LUN_PR_RESERVED; 8614 lun->res_type = 0; 8615 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8616 } 8617 } 8618 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8619 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8620 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8621 persis_io.pr.pr_info.residx = residx; 8622 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8623 &persis_io, sizeof(persis_io), 0 )) > 8624 CTL_HA_STATUS_SUCCESS) { 8625 printf("CTL:Persis Out error returned from " 8626 "ctl_ha_msg_send %d\n", isc_retval); 8627 } 8628 } else /* sa_res_key != 0 */ { 8629 8630 /* 8631 * If we aren't registered currently then increment 8632 * the key count and set the registered flag. 8633 */ 8634 if (!lun->per_res[residx].registered) { 8635 lun->pr_key_count++; 8636 lun->per_res[residx].registered = 1; 8637 } 8638 8639 memcpy(&lun->per_res[residx].res_key, 8640 param->serv_act_res_key, 8641 ctl_min(sizeof(param->serv_act_res_key), 8642 sizeof(lun->per_res[residx].res_key))); 8643 8644 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8645 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8646 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8647 persis_io.pr.pr_info.residx = residx; 8648 memcpy(persis_io.pr.pr_info.sa_res_key, 8649 param->serv_act_res_key, 8650 sizeof(param->serv_act_res_key)); 8651 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8652 &persis_io, sizeof(persis_io), 0)) > 8653 CTL_HA_STATUS_SUCCESS) { 8654 printf("CTL:Persis Out error returned from " 8655 "ctl_ha_msg_send %d\n", isc_retval); 8656 } 8657 } 8658 lun->PRGeneration++; 8659 mtx_unlock(&lun->lun_lock); 8660 8661 break; 8662 } 8663 case SPRO_RESERVE: 8664 #if 0 8665 printf("Reserve executed type %d\n", type); 8666 #endif 8667 mtx_lock(&lun->lun_lock); 8668 if (lun->flags & CTL_LUN_PR_RESERVED) { 8669 /* 8670 * if this isn't the reservation holder and it's 8671 * not a "all registrants" type or if the type is 8672 * different then we have a conflict 8673 */ 8674 if ((lun->pr_res_idx != residx 8675 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8676 || lun->res_type != type) { 8677 mtx_unlock(&lun->lun_lock); 8678 free(ctsio->kern_data_ptr, M_CTL); 8679 ctl_set_reservation_conflict(ctsio); 8680 ctl_done((union ctl_io *)ctsio); 8681 return (CTL_RETVAL_COMPLETE); 8682 } 8683 mtx_unlock(&lun->lun_lock); 8684 } else /* create a reservation */ { 8685 /* 8686 * If it's not an "all registrants" type record 8687 * reservation holder 8688 */ 8689 if (type != SPR_TYPE_WR_EX_AR 8690 && type != SPR_TYPE_EX_AC_AR) 8691 lun->pr_res_idx = residx; /* Res holder */ 8692 else 8693 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8694 8695 lun->flags |= CTL_LUN_PR_RESERVED; 8696 lun->res_type = type; 8697 8698 mtx_unlock(&lun->lun_lock); 8699 8700 /* send msg to other side */ 8701 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8702 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8703 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8704 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8705 persis_io.pr.pr_info.res_type = type; 8706 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8707 &persis_io, sizeof(persis_io), 0)) > 8708 CTL_HA_STATUS_SUCCESS) { 8709 printf("CTL:Persis Out error returned from " 8710 "ctl_ha_msg_send %d\n", isc_retval); 8711 } 8712 } 8713 break; 8714 8715 case SPRO_RELEASE: 8716 mtx_lock(&lun->lun_lock); 8717 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8718 /* No reservation exists return good status */ 8719 mtx_unlock(&lun->lun_lock); 8720 goto done; 8721 } 8722 /* 8723 * Is this nexus a reservation holder? 8724 */ 8725 if (lun->pr_res_idx != residx 8726 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8727 /* 8728 * not a res holder return good status but 8729 * do nothing 8730 */ 8731 mtx_unlock(&lun->lun_lock); 8732 goto done; 8733 } 8734 8735 if (lun->res_type != type) { 8736 mtx_unlock(&lun->lun_lock); 8737 free(ctsio->kern_data_ptr, M_CTL); 8738 ctl_set_illegal_pr_release(ctsio); 8739 ctl_done((union ctl_io *)ctsio); 8740 return (CTL_RETVAL_COMPLETE); 8741 } 8742 8743 /* okay to release */ 8744 lun->flags &= ~CTL_LUN_PR_RESERVED; 8745 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8746 lun->res_type = 0; 8747 8748 /* 8749 * if this isn't an exclusive access 8750 * res generate UA for all other 8751 * registrants. 8752 */ 8753 if (type != SPR_TYPE_EX_AC 8754 && type != SPR_TYPE_WR_EX) { 8755 /* 8756 * temporarily unregister so we don't generate UA 8757 */ 8758 lun->per_res[residx].registered = 0; 8759 8760 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8761 if (lun->per_res[i+persis_offset].registered 8762 == 0) 8763 continue; 8764 lun->pending_ua[i] |= 8765 CTL_UA_RES_RELEASE; 8766 } 8767 8768 lun->per_res[residx].registered = 1; 8769 } 8770 mtx_unlock(&lun->lun_lock); 8771 /* Send msg to other side */ 8772 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8773 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8774 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8775 if ((isc_retval=ctl_ha_msg_send( CTL_HA_CHAN_CTL, &persis_io, 8776 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8777 printf("CTL:Persis Out error returned from " 8778 "ctl_ha_msg_send %d\n", isc_retval); 8779 } 8780 break; 8781 8782 case SPRO_CLEAR: 8783 /* send msg to other side */ 8784 8785 mtx_lock(&lun->lun_lock); 8786 lun->flags &= ~CTL_LUN_PR_RESERVED; 8787 lun->res_type = 0; 8788 lun->pr_key_count = 0; 8789 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8790 8791 8792 memset(&lun->per_res[residx].res_key, 8793 0, sizeof(lun->per_res[residx].res_key)); 8794 lun->per_res[residx].registered = 0; 8795 8796 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) 8797 if (lun->per_res[i].registered) { 8798 if (!persis_offset && i < CTL_MAX_INITIATORS) 8799 lun->pending_ua[i] |= 8800 CTL_UA_RES_PREEMPT; 8801 else if (persis_offset && i >= persis_offset) 8802 lun->pending_ua[i-persis_offset] |= 8803 CTL_UA_RES_PREEMPT; 8804 8805 memset(&lun->per_res[i].res_key, 8806 0, sizeof(struct scsi_per_res_key)); 8807 lun->per_res[i].registered = 0; 8808 } 8809 lun->PRGeneration++; 8810 mtx_unlock(&lun->lun_lock); 8811 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8812 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8813 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8814 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8815 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8816 printf("CTL:Persis Out error returned from " 8817 "ctl_ha_msg_send %d\n", isc_retval); 8818 } 8819 break; 8820 8821 case SPRO_PREEMPT: { 8822 int nretval; 8823 8824 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8825 residx, ctsio, cdb, param); 8826 if (nretval != 0) 8827 return (CTL_RETVAL_COMPLETE); 8828 break; 8829 } 8830 default: 8831 panic("Invalid PR type %x", cdb->action); 8832 } 8833 8834 done: 8835 free(ctsio->kern_data_ptr, M_CTL); 8836 ctl_set_success(ctsio); 8837 ctl_done((union ctl_io *)ctsio); 8838 8839 return (retval); 8840 } 8841 8842 /* 8843 * This routine is for handling a message from the other SC pertaining to 8844 * persistent reserve out. All the error checking will have been done 8845 * so only perorming the action need be done here to keep the two 8846 * in sync. 8847 */ 8848 static void 8849 ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8850 { 8851 struct ctl_lun *lun; 8852 struct ctl_softc *softc; 8853 int i; 8854 uint32_t targ_lun; 8855 8856 softc = control_softc; 8857 8858 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8859 lun = softc->ctl_luns[targ_lun]; 8860 mtx_lock(&lun->lun_lock); 8861 switch(msg->pr.pr_info.action) { 8862 case CTL_PR_REG_KEY: 8863 if (!lun->per_res[msg->pr.pr_info.residx].registered) { 8864 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8865 lun->pr_key_count++; 8866 } 8867 lun->PRGeneration++; 8868 memcpy(&lun->per_res[msg->pr.pr_info.residx].res_key, 8869 msg->pr.pr_info.sa_res_key, 8870 sizeof(struct scsi_per_res_key)); 8871 break; 8872 8873 case CTL_PR_UNREG_KEY: 8874 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8875 memset(&lun->per_res[msg->pr.pr_info.residx].res_key, 8876 0, sizeof(struct scsi_per_res_key)); 8877 lun->pr_key_count--; 8878 8879 /* XXX Need to see if the reservation has been released */ 8880 /* if so do we need to generate UA? */ 8881 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8882 lun->flags &= ~CTL_LUN_PR_RESERVED; 8883 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8884 8885 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8886 || lun->res_type == SPR_TYPE_EX_AC_RO) 8887 && lun->pr_key_count) { 8888 /* 8889 * If the reservation is a registrants 8890 * only type we need to generate a UA 8891 * for other registered inits. The 8892 * sense code should be RESERVATIONS 8893 * RELEASED 8894 */ 8895 8896 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8897 if (lun->per_res[i+ 8898 persis_offset].registered == 0) 8899 continue; 8900 8901 lun->pending_ua[i] |= 8902 CTL_UA_RES_RELEASE; 8903 } 8904 } 8905 lun->res_type = 0; 8906 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8907 if (lun->pr_key_count==0) { 8908 lun->flags &= ~CTL_LUN_PR_RESERVED; 8909 lun->res_type = 0; 8910 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8911 } 8912 } 8913 lun->PRGeneration++; 8914 break; 8915 8916 case CTL_PR_RESERVE: 8917 lun->flags |= CTL_LUN_PR_RESERVED; 8918 lun->res_type = msg->pr.pr_info.res_type; 8919 lun->pr_res_idx = msg->pr.pr_info.residx; 8920 8921 break; 8922 8923 case CTL_PR_RELEASE: 8924 /* 8925 * if this isn't an exclusive access res generate UA for all 8926 * other registrants. 8927 */ 8928 if (lun->res_type != SPR_TYPE_EX_AC 8929 && lun->res_type != SPR_TYPE_WR_EX) { 8930 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8931 if (lun->per_res[i+persis_offset].registered) 8932 lun->pending_ua[i] |= 8933 CTL_UA_RES_RELEASE; 8934 } 8935 8936 lun->flags &= ~CTL_LUN_PR_RESERVED; 8937 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8938 lun->res_type = 0; 8939 break; 8940 8941 case CTL_PR_PREEMPT: 8942 ctl_pro_preempt_other(lun, msg); 8943 break; 8944 case CTL_PR_CLEAR: 8945 lun->flags &= ~CTL_LUN_PR_RESERVED; 8946 lun->res_type = 0; 8947 lun->pr_key_count = 0; 8948 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8949 8950 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8951 if (lun->per_res[i].registered == 0) 8952 continue; 8953 if (!persis_offset 8954 && i < CTL_MAX_INITIATORS) 8955 lun->pending_ua[i] |= CTL_UA_RES_PREEMPT; 8956 else if (persis_offset 8957 && i >= persis_offset) 8958 lun->pending_ua[i-persis_offset] |= 8959 CTL_UA_RES_PREEMPT; 8960 memset(&lun->per_res[i].res_key, 0, 8961 sizeof(struct scsi_per_res_key)); 8962 lun->per_res[i].registered = 0; 8963 } 8964 lun->PRGeneration++; 8965 break; 8966 } 8967 8968 mtx_unlock(&lun->lun_lock); 8969 } 8970 8971 int 8972 ctl_read_write(struct ctl_scsiio *ctsio) 8973 { 8974 struct ctl_lun *lun; 8975 struct ctl_lba_len_flags *lbalen; 8976 uint64_t lba; 8977 uint32_t num_blocks; 8978 int fua, dpo; 8979 int retval; 8980 int isread; 8981 8982 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8983 8984 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8985 8986 fua = 0; 8987 dpo = 0; 8988 8989 retval = CTL_RETVAL_COMPLETE; 8990 8991 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8992 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8993 if (lun->flags & CTL_LUN_PR_RESERVED && isread) { 8994 uint32_t residx; 8995 8996 /* 8997 * XXX KDM need a lock here. 8998 */ 8999 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 9000 if ((lun->res_type == SPR_TYPE_EX_AC 9001 && residx != lun->pr_res_idx) 9002 || ((lun->res_type == SPR_TYPE_EX_AC_RO 9003 || lun->res_type == SPR_TYPE_EX_AC_AR) 9004 && !lun->per_res[residx].registered)) { 9005 ctl_set_reservation_conflict(ctsio); 9006 ctl_done((union ctl_io *)ctsio); 9007 return (CTL_RETVAL_COMPLETE); 9008 } 9009 } 9010 9011 switch (ctsio->cdb[0]) { 9012 case READ_6: 9013 case WRITE_6: { 9014 struct scsi_rw_6 *cdb; 9015 9016 cdb = (struct scsi_rw_6 *)ctsio->cdb; 9017 9018 lba = scsi_3btoul(cdb->addr); 9019 /* only 5 bits are valid in the most significant address byte */ 9020 lba &= 0x1fffff; 9021 num_blocks = cdb->length; 9022 /* 9023 * This is correct according to SBC-2. 9024 */ 9025 if (num_blocks == 0) 9026 num_blocks = 256; 9027 break; 9028 } 9029 case READ_10: 9030 case WRITE_10: { 9031 struct scsi_rw_10 *cdb; 9032 9033 cdb = (struct scsi_rw_10 *)ctsio->cdb; 9034 9035 if (cdb->byte2 & SRW10_FUA) 9036 fua = 1; 9037 if (cdb->byte2 & SRW10_DPO) 9038 dpo = 1; 9039 9040 lba = scsi_4btoul(cdb->addr); 9041 num_blocks = scsi_2btoul(cdb->length); 9042 break; 9043 } 9044 case WRITE_VERIFY_10: { 9045 struct scsi_write_verify_10 *cdb; 9046 9047 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 9048 9049 /* 9050 * XXX KDM we should do actual write verify support at some 9051 * point. This is obviously fake, we're just translating 9052 * things to a write. So we don't even bother checking the 9053 * BYTCHK field, since we don't do any verification. If 9054 * the user asks for it, we'll just pretend we did it. 9055 */ 9056 if (cdb->byte2 & SWV_DPO) 9057 dpo = 1; 9058 9059 lba = scsi_4btoul(cdb->addr); 9060 num_blocks = scsi_2btoul(cdb->length); 9061 break; 9062 } 9063 case READ_12: 9064 case WRITE_12: { 9065 struct scsi_rw_12 *cdb; 9066 9067 cdb = (struct scsi_rw_12 *)ctsio->cdb; 9068 9069 if (cdb->byte2 & SRW12_FUA) 9070 fua = 1; 9071 if (cdb->byte2 & SRW12_DPO) 9072 dpo = 1; 9073 lba = scsi_4btoul(cdb->addr); 9074 num_blocks = scsi_4btoul(cdb->length); 9075 break; 9076 } 9077 case WRITE_VERIFY_12: { 9078 struct scsi_write_verify_12 *cdb; 9079 9080 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 9081 9082 if (cdb->byte2 & SWV_DPO) 9083 dpo = 1; 9084 9085 lba = scsi_4btoul(cdb->addr); 9086 num_blocks = scsi_4btoul(cdb->length); 9087 9088 break; 9089 } 9090 case READ_16: 9091 case WRITE_16: { 9092 struct scsi_rw_16 *cdb; 9093 9094 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9095 9096 if (cdb->byte2 & SRW12_FUA) 9097 fua = 1; 9098 if (cdb->byte2 & SRW12_DPO) 9099 dpo = 1; 9100 9101 lba = scsi_8btou64(cdb->addr); 9102 num_blocks = scsi_4btoul(cdb->length); 9103 break; 9104 } 9105 case WRITE_VERIFY_16: { 9106 struct scsi_write_verify_16 *cdb; 9107 9108 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 9109 9110 if (cdb->byte2 & SWV_DPO) 9111 dpo = 1; 9112 9113 lba = scsi_8btou64(cdb->addr); 9114 num_blocks = scsi_4btoul(cdb->length); 9115 break; 9116 } 9117 default: 9118 /* 9119 * We got a command we don't support. This shouldn't 9120 * happen, commands should be filtered out above us. 9121 */ 9122 ctl_set_invalid_opcode(ctsio); 9123 ctl_done((union ctl_io *)ctsio); 9124 9125 return (CTL_RETVAL_COMPLETE); 9126 break; /* NOTREACHED */ 9127 } 9128 9129 /* 9130 * XXX KDM what do we do with the DPO and FUA bits? FUA might be 9131 * interesting for us, but if RAIDCore is in write-back mode, 9132 * getting it to do write-through for a particular transaction may 9133 * not be possible. 9134 */ 9135 9136 /* 9137 * The first check is to make sure we're in bounds, the second 9138 * check is to catch wrap-around problems. If the lba + num blocks 9139 * is less than the lba, then we've wrapped around and the block 9140 * range is invalid anyway. 9141 */ 9142 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9143 || ((lba + num_blocks) < lba)) { 9144 ctl_set_lba_out_of_range(ctsio); 9145 ctl_done((union ctl_io *)ctsio); 9146 return (CTL_RETVAL_COMPLETE); 9147 } 9148 9149 /* 9150 * According to SBC-3, a transfer length of 0 is not an error. 9151 * Note that this cannot happen with WRITE(6) or READ(6), since 0 9152 * translates to 256 blocks for those commands. 9153 */ 9154 if (num_blocks == 0) { 9155 ctl_set_success(ctsio); 9156 ctl_done((union ctl_io *)ctsio); 9157 return (CTL_RETVAL_COMPLETE); 9158 } 9159 9160 lbalen = (struct ctl_lba_len_flags *) 9161 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9162 lbalen->lba = lba; 9163 lbalen->len = num_blocks; 9164 lbalen->flags = isread ? CTL_LLF_READ : CTL_LLF_WRITE; 9165 9166 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9167 ctsio->kern_rel_offset = 0; 9168 9169 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 9170 9171 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9172 9173 return (retval); 9174 } 9175 9176 static int 9177 ctl_cnw_cont(union ctl_io *io) 9178 { 9179 struct ctl_scsiio *ctsio; 9180 struct ctl_lun *lun; 9181 struct ctl_lba_len_flags *lbalen; 9182 int retval; 9183 9184 ctsio = &io->scsiio; 9185 ctsio->io_hdr.status = CTL_STATUS_NONE; 9186 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 9187 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9188 lbalen = (struct ctl_lba_len_flags *) 9189 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9190 lbalen->flags = CTL_LLF_WRITE; 9191 9192 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 9193 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9194 return (retval); 9195 } 9196 9197 int 9198 ctl_cnw(struct ctl_scsiio *ctsio) 9199 { 9200 struct ctl_lun *lun; 9201 struct ctl_lba_len_flags *lbalen; 9202 uint64_t lba; 9203 uint32_t num_blocks; 9204 int fua, dpo; 9205 int retval; 9206 9207 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9208 9209 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 9210 9211 fua = 0; 9212 dpo = 0; 9213 9214 retval = CTL_RETVAL_COMPLETE; 9215 9216 switch (ctsio->cdb[0]) { 9217 case COMPARE_AND_WRITE: { 9218 struct scsi_compare_and_write *cdb; 9219 9220 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 9221 9222 if (cdb->byte2 & SRW10_FUA) 9223 fua = 1; 9224 if (cdb->byte2 & SRW10_DPO) 9225 dpo = 1; 9226 lba = scsi_8btou64(cdb->addr); 9227 num_blocks = cdb->length; 9228 break; 9229 } 9230 default: 9231 /* 9232 * We got a command we don't support. This shouldn't 9233 * happen, commands should be filtered out above us. 9234 */ 9235 ctl_set_invalid_opcode(ctsio); 9236 ctl_done((union ctl_io *)ctsio); 9237 9238 return (CTL_RETVAL_COMPLETE); 9239 break; /* NOTREACHED */ 9240 } 9241 9242 /* 9243 * XXX KDM what do we do with the DPO and FUA bits? FUA might be 9244 * interesting for us, but if RAIDCore is in write-back mode, 9245 * getting it to do write-through for a particular transaction may 9246 * not be possible. 9247 */ 9248 9249 /* 9250 * The first check is to make sure we're in bounds, the second 9251 * check is to catch wrap-around problems. If the lba + num blocks 9252 * is less than the lba, then we've wrapped around and the block 9253 * range is invalid anyway. 9254 */ 9255 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9256 || ((lba + num_blocks) < lba)) { 9257 ctl_set_lba_out_of_range(ctsio); 9258 ctl_done((union ctl_io *)ctsio); 9259 return (CTL_RETVAL_COMPLETE); 9260 } 9261 9262 /* 9263 * According to SBC-3, a transfer length of 0 is not an error. 9264 */ 9265 if (num_blocks == 0) { 9266 ctl_set_success(ctsio); 9267 ctl_done((union ctl_io *)ctsio); 9268 return (CTL_RETVAL_COMPLETE); 9269 } 9270 9271 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 9272 ctsio->kern_rel_offset = 0; 9273 9274 /* 9275 * Set the IO_CONT flag, so that if this I/O gets passed to 9276 * ctl_data_submit_done(), it'll get passed back to 9277 * ctl_ctl_cnw_cont() for further processing. 9278 */ 9279 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 9280 ctsio->io_cont = ctl_cnw_cont; 9281 9282 lbalen = (struct ctl_lba_len_flags *) 9283 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9284 lbalen->lba = lba; 9285 lbalen->len = num_blocks; 9286 lbalen->flags = CTL_LLF_COMPARE; 9287 9288 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 9289 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9290 return (retval); 9291 } 9292 9293 int 9294 ctl_verify(struct ctl_scsiio *ctsio) 9295 { 9296 struct ctl_lun *lun; 9297 struct ctl_lba_len_flags *lbalen; 9298 uint64_t lba; 9299 uint32_t num_blocks; 9300 int bytchk, dpo; 9301 int retval; 9302 9303 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9304 9305 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 9306 9307 bytchk = 0; 9308 dpo = 0; 9309 retval = CTL_RETVAL_COMPLETE; 9310 9311 switch (ctsio->cdb[0]) { 9312 case VERIFY_10: { 9313 struct scsi_verify_10 *cdb; 9314 9315 cdb = (struct scsi_verify_10 *)ctsio->cdb; 9316 if (cdb->byte2 & SVFY_BYTCHK) 9317 bytchk = 1; 9318 if (cdb->byte2 & SVFY_DPO) 9319 dpo = 1; 9320 lba = scsi_4btoul(cdb->addr); 9321 num_blocks = scsi_2btoul(cdb->length); 9322 break; 9323 } 9324 case VERIFY_12: { 9325 struct scsi_verify_12 *cdb; 9326 9327 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9328 if (cdb->byte2 & SVFY_BYTCHK) 9329 bytchk = 1; 9330 if (cdb->byte2 & SVFY_DPO) 9331 dpo = 1; 9332 lba = scsi_4btoul(cdb->addr); 9333 num_blocks = scsi_4btoul(cdb->length); 9334 break; 9335 } 9336 case VERIFY_16: { 9337 struct scsi_rw_16 *cdb; 9338 9339 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9340 if (cdb->byte2 & SVFY_BYTCHK) 9341 bytchk = 1; 9342 if (cdb->byte2 & SVFY_DPO) 9343 dpo = 1; 9344 lba = scsi_8btou64(cdb->addr); 9345 num_blocks = scsi_4btoul(cdb->length); 9346 break; 9347 } 9348 default: 9349 /* 9350 * We got a command we don't support. This shouldn't 9351 * happen, commands should be filtered out above us. 9352 */ 9353 ctl_set_invalid_opcode(ctsio); 9354 ctl_done((union ctl_io *)ctsio); 9355 return (CTL_RETVAL_COMPLETE); 9356 } 9357 9358 /* 9359 * The first check is to make sure we're in bounds, the second 9360 * check is to catch wrap-around problems. If the lba + num blocks 9361 * is less than the lba, then we've wrapped around and the block 9362 * range is invalid anyway. 9363 */ 9364 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9365 || ((lba + num_blocks) < lba)) { 9366 ctl_set_lba_out_of_range(ctsio); 9367 ctl_done((union ctl_io *)ctsio); 9368 return (CTL_RETVAL_COMPLETE); 9369 } 9370 9371 /* 9372 * According to SBC-3, a transfer length of 0 is not an error. 9373 */ 9374 if (num_blocks == 0) { 9375 ctl_set_success(ctsio); 9376 ctl_done((union ctl_io *)ctsio); 9377 return (CTL_RETVAL_COMPLETE); 9378 } 9379 9380 lbalen = (struct ctl_lba_len_flags *) 9381 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9382 lbalen->lba = lba; 9383 lbalen->len = num_blocks; 9384 if (bytchk) { 9385 lbalen->flags = CTL_LLF_COMPARE; 9386 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9387 } else { 9388 lbalen->flags = CTL_LLF_VERIFY; 9389 ctsio->kern_total_len = 0; 9390 } 9391 ctsio->kern_rel_offset = 0; 9392 9393 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9394 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9395 return (retval); 9396 } 9397 9398 int 9399 ctl_report_luns(struct ctl_scsiio *ctsio) 9400 { 9401 struct scsi_report_luns *cdb; 9402 struct scsi_report_luns_data *lun_data; 9403 struct ctl_lun *lun, *request_lun; 9404 int num_luns, retval; 9405 uint32_t alloc_len, lun_datalen; 9406 int num_filled, well_known; 9407 uint32_t initidx, targ_lun_id, lun_id; 9408 9409 retval = CTL_RETVAL_COMPLETE; 9410 well_known = 0; 9411 9412 cdb = (struct scsi_report_luns *)ctsio->cdb; 9413 9414 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9415 9416 mtx_lock(&control_softc->ctl_lock); 9417 num_luns = control_softc->num_luns; 9418 mtx_unlock(&control_softc->ctl_lock); 9419 9420 switch (cdb->select_report) { 9421 case RPL_REPORT_DEFAULT: 9422 case RPL_REPORT_ALL: 9423 break; 9424 case RPL_REPORT_WELLKNOWN: 9425 well_known = 1; 9426 num_luns = 0; 9427 break; 9428 default: 9429 ctl_set_invalid_field(ctsio, 9430 /*sks_valid*/ 1, 9431 /*command*/ 1, 9432 /*field*/ 2, 9433 /*bit_valid*/ 0, 9434 /*bit*/ 0); 9435 ctl_done((union ctl_io *)ctsio); 9436 return (retval); 9437 break; /* NOTREACHED */ 9438 } 9439 9440 alloc_len = scsi_4btoul(cdb->length); 9441 /* 9442 * The initiator has to allocate at least 16 bytes for this request, 9443 * so he can at least get the header and the first LUN. Otherwise 9444 * we reject the request (per SPC-3 rev 14, section 6.21). 9445 */ 9446 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9447 sizeof(struct scsi_report_luns_lundata))) { 9448 ctl_set_invalid_field(ctsio, 9449 /*sks_valid*/ 1, 9450 /*command*/ 1, 9451 /*field*/ 6, 9452 /*bit_valid*/ 0, 9453 /*bit*/ 0); 9454 ctl_done((union ctl_io *)ctsio); 9455 return (retval); 9456 } 9457 9458 request_lun = (struct ctl_lun *) 9459 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9460 9461 lun_datalen = sizeof(*lun_data) + 9462 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9463 9464 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9465 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9466 ctsio->kern_sg_entries = 0; 9467 9468 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9469 9470 mtx_lock(&control_softc->ctl_lock); 9471 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9472 lun_id = ctl_map_lun(ctsio->io_hdr.nexus.targ_port, targ_lun_id); 9473 if (lun_id >= CTL_MAX_LUNS) 9474 continue; 9475 lun = control_softc->ctl_luns[lun_id]; 9476 if (lun == NULL) 9477 continue; 9478 9479 if (targ_lun_id <= 0xff) { 9480 /* 9481 * Peripheral addressing method, bus number 0. 9482 */ 9483 lun_data->luns[num_filled].lundata[0] = 9484 RPL_LUNDATA_ATYP_PERIPH; 9485 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9486 num_filled++; 9487 } else if (targ_lun_id <= 0x3fff) { 9488 /* 9489 * Flat addressing method. 9490 */ 9491 lun_data->luns[num_filled].lundata[0] = 9492 RPL_LUNDATA_ATYP_FLAT | 9493 (targ_lun_id & RPL_LUNDATA_FLAT_LUN_MASK); 9494 #ifdef OLDCTLHEADERS 9495 (SRLD_ADDR_FLAT << SRLD_ADDR_SHIFT) | 9496 (targ_lun_id & SRLD_BUS_LUN_MASK); 9497 #endif 9498 lun_data->luns[num_filled].lundata[1] = 9499 #ifdef OLDCTLHEADERS 9500 targ_lun_id >> SRLD_BUS_LUN_BITS; 9501 #endif 9502 targ_lun_id >> RPL_LUNDATA_FLAT_LUN_BITS; 9503 num_filled++; 9504 } else { 9505 printf("ctl_report_luns: bogus LUN number %jd, " 9506 "skipping\n", (intmax_t)targ_lun_id); 9507 } 9508 /* 9509 * According to SPC-3, rev 14 section 6.21: 9510 * 9511 * "The execution of a REPORT LUNS command to any valid and 9512 * installed logical unit shall clear the REPORTED LUNS DATA 9513 * HAS CHANGED unit attention condition for all logical 9514 * units of that target with respect to the requesting 9515 * initiator. A valid and installed logical unit is one 9516 * having a PERIPHERAL QUALIFIER of 000b in the standard 9517 * INQUIRY data (see 6.4.2)." 9518 * 9519 * If request_lun is NULL, the LUN this report luns command 9520 * was issued to is either disabled or doesn't exist. In that 9521 * case, we shouldn't clear any pending lun change unit 9522 * attention. 9523 */ 9524 if (request_lun != NULL) { 9525 mtx_lock(&lun->lun_lock); 9526 lun->pending_ua[initidx] &= ~CTL_UA_LUN_CHANGE; 9527 mtx_unlock(&lun->lun_lock); 9528 } 9529 } 9530 mtx_unlock(&control_softc->ctl_lock); 9531 9532 /* 9533 * It's quite possible that we've returned fewer LUNs than we allocated 9534 * space for. Trim it. 9535 */ 9536 lun_datalen = sizeof(*lun_data) + 9537 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9538 9539 if (lun_datalen < alloc_len) { 9540 ctsio->residual = alloc_len - lun_datalen; 9541 ctsio->kern_data_len = lun_datalen; 9542 ctsio->kern_total_len = lun_datalen; 9543 } else { 9544 ctsio->residual = 0; 9545 ctsio->kern_data_len = alloc_len; 9546 ctsio->kern_total_len = alloc_len; 9547 } 9548 ctsio->kern_data_resid = 0; 9549 ctsio->kern_rel_offset = 0; 9550 ctsio->kern_sg_entries = 0; 9551 9552 /* 9553 * We set this to the actual data length, regardless of how much 9554 * space we actually have to return results. If the user looks at 9555 * this value, he'll know whether or not he allocated enough space 9556 * and reissue the command if necessary. We don't support well 9557 * known logical units, so if the user asks for that, return none. 9558 */ 9559 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9560 9561 /* 9562 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9563 * this request. 9564 */ 9565 ctsio->scsi_status = SCSI_STATUS_OK; 9566 9567 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9568 ctsio->be_move_done = ctl_config_move_done; 9569 ctl_datamove((union ctl_io *)ctsio); 9570 9571 return (retval); 9572 } 9573 9574 int 9575 ctl_request_sense(struct ctl_scsiio *ctsio) 9576 { 9577 struct scsi_request_sense *cdb; 9578 struct scsi_sense_data *sense_ptr; 9579 struct ctl_lun *lun; 9580 uint32_t initidx; 9581 int have_error; 9582 scsi_sense_data_type sense_format; 9583 9584 cdb = (struct scsi_request_sense *)ctsio->cdb; 9585 9586 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9587 9588 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9589 9590 /* 9591 * Determine which sense format the user wants. 9592 */ 9593 if (cdb->byte2 & SRS_DESC) 9594 sense_format = SSD_TYPE_DESC; 9595 else 9596 sense_format = SSD_TYPE_FIXED; 9597 9598 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9599 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9600 ctsio->kern_sg_entries = 0; 9601 9602 /* 9603 * struct scsi_sense_data, which is currently set to 256 bytes, is 9604 * larger than the largest allowed value for the length field in the 9605 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9606 */ 9607 ctsio->residual = 0; 9608 ctsio->kern_data_len = cdb->length; 9609 ctsio->kern_total_len = cdb->length; 9610 9611 ctsio->kern_data_resid = 0; 9612 ctsio->kern_rel_offset = 0; 9613 ctsio->kern_sg_entries = 0; 9614 9615 /* 9616 * If we don't have a LUN, we don't have any pending sense. 9617 */ 9618 if (lun == NULL) 9619 goto no_sense; 9620 9621 have_error = 0; 9622 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9623 /* 9624 * Check for pending sense, and then for pending unit attentions. 9625 * Pending sense gets returned first, then pending unit attentions. 9626 */ 9627 mtx_lock(&lun->lun_lock); 9628 #ifdef CTL_WITH_CA 9629 if (ctl_is_set(lun->have_ca, initidx)) { 9630 scsi_sense_data_type stored_format; 9631 9632 /* 9633 * Check to see which sense format was used for the stored 9634 * sense data. 9635 */ 9636 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9637 9638 /* 9639 * If the user requested a different sense format than the 9640 * one we stored, then we need to convert it to the other 9641 * format. If we're going from descriptor to fixed format 9642 * sense data, we may lose things in translation, depending 9643 * on what options were used. 9644 * 9645 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9646 * for some reason we'll just copy it out as-is. 9647 */ 9648 if ((stored_format == SSD_TYPE_FIXED) 9649 && (sense_format == SSD_TYPE_DESC)) 9650 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9651 &lun->pending_sense[initidx], 9652 (struct scsi_sense_data_desc *)sense_ptr); 9653 else if ((stored_format == SSD_TYPE_DESC) 9654 && (sense_format == SSD_TYPE_FIXED)) 9655 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9656 &lun->pending_sense[initidx], 9657 (struct scsi_sense_data_fixed *)sense_ptr); 9658 else 9659 memcpy(sense_ptr, &lun->pending_sense[initidx], 9660 ctl_min(sizeof(*sense_ptr), 9661 sizeof(lun->pending_sense[initidx]))); 9662 9663 ctl_clear_mask(lun->have_ca, initidx); 9664 have_error = 1; 9665 } else 9666 #endif 9667 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 9668 ctl_ua_type ua_type; 9669 9670 ua_type = ctl_build_ua(lun->pending_ua[initidx], 9671 sense_ptr, sense_format); 9672 if (ua_type != CTL_UA_NONE) { 9673 have_error = 1; 9674 /* We're reporting this UA, so clear it */ 9675 lun->pending_ua[initidx] &= ~ua_type; 9676 } 9677 } 9678 mtx_unlock(&lun->lun_lock); 9679 9680 /* 9681 * We already have a pending error, return it. 9682 */ 9683 if (have_error != 0) { 9684 /* 9685 * We report the SCSI status as OK, since the status of the 9686 * request sense command itself is OK. 9687 */ 9688 ctsio->scsi_status = SCSI_STATUS_OK; 9689 9690 /* 9691 * We report 0 for the sense length, because we aren't doing 9692 * autosense in this case. We're reporting sense as 9693 * parameter data. 9694 */ 9695 ctsio->sense_len = 0; 9696 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9697 ctsio->be_move_done = ctl_config_move_done; 9698 ctl_datamove((union ctl_io *)ctsio); 9699 9700 return (CTL_RETVAL_COMPLETE); 9701 } 9702 9703 no_sense: 9704 9705 /* 9706 * No sense information to report, so we report that everything is 9707 * okay. 9708 */ 9709 ctl_set_sense_data(sense_ptr, 9710 lun, 9711 sense_format, 9712 /*current_error*/ 1, 9713 /*sense_key*/ SSD_KEY_NO_SENSE, 9714 /*asc*/ 0x00, 9715 /*ascq*/ 0x00, 9716 SSD_ELEM_NONE); 9717 9718 ctsio->scsi_status = SCSI_STATUS_OK; 9719 9720 /* 9721 * We report 0 for the sense length, because we aren't doing 9722 * autosense in this case. We're reporting sense as parameter data. 9723 */ 9724 ctsio->sense_len = 0; 9725 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9726 ctsio->be_move_done = ctl_config_move_done; 9727 ctl_datamove((union ctl_io *)ctsio); 9728 9729 return (CTL_RETVAL_COMPLETE); 9730 } 9731 9732 int 9733 ctl_tur(struct ctl_scsiio *ctsio) 9734 { 9735 struct ctl_lun *lun; 9736 9737 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9738 9739 CTL_DEBUG_PRINT(("ctl_tur\n")); 9740 9741 if (lun == NULL) 9742 return (EINVAL); 9743 9744 ctsio->scsi_status = SCSI_STATUS_OK; 9745 ctsio->io_hdr.status = CTL_SUCCESS; 9746 9747 ctl_done((union ctl_io *)ctsio); 9748 9749 return (CTL_RETVAL_COMPLETE); 9750 } 9751 9752 #ifdef notyet 9753 static int 9754 ctl_cmddt_inquiry(struct ctl_scsiio *ctsio) 9755 { 9756 9757 } 9758 #endif 9759 9760 static int 9761 ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9762 { 9763 struct scsi_vpd_supported_pages *pages; 9764 int sup_page_size; 9765 struct ctl_lun *lun; 9766 9767 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9768 9769 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9770 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9771 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9772 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9773 ctsio->kern_sg_entries = 0; 9774 9775 if (sup_page_size < alloc_len) { 9776 ctsio->residual = alloc_len - sup_page_size; 9777 ctsio->kern_data_len = sup_page_size; 9778 ctsio->kern_total_len = sup_page_size; 9779 } else { 9780 ctsio->residual = 0; 9781 ctsio->kern_data_len = alloc_len; 9782 ctsio->kern_total_len = alloc_len; 9783 } 9784 ctsio->kern_data_resid = 0; 9785 ctsio->kern_rel_offset = 0; 9786 ctsio->kern_sg_entries = 0; 9787 9788 /* 9789 * The control device is always connected. The disk device, on the 9790 * other hand, may not be online all the time. Need to change this 9791 * to figure out whether the disk device is actually online or not. 9792 */ 9793 if (lun != NULL) 9794 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9795 lun->be_lun->lun_type; 9796 else 9797 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9798 9799 pages->length = SCSI_EVPD_NUM_SUPPORTED_PAGES; 9800 /* Supported VPD pages */ 9801 pages->page_list[0] = SVPD_SUPPORTED_PAGES; 9802 /* Serial Number */ 9803 pages->page_list[1] = SVPD_UNIT_SERIAL_NUMBER; 9804 /* Device Identification */ 9805 pages->page_list[2] = SVPD_DEVICE_ID; 9806 /* SCSI Ports */ 9807 pages->page_list[3] = SVPD_SCSI_PORTS; 9808 /* Third-party Copy */ 9809 pages->page_list[4] = SVPD_SCSI_TPC; 9810 /* Block limits */ 9811 pages->page_list[5] = SVPD_BLOCK_LIMITS; 9812 /* Logical Block Provisioning */ 9813 pages->page_list[6] = SVPD_LBP; 9814 9815 ctsio->scsi_status = SCSI_STATUS_OK; 9816 9817 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9818 ctsio->be_move_done = ctl_config_move_done; 9819 ctl_datamove((union ctl_io *)ctsio); 9820 9821 return (CTL_RETVAL_COMPLETE); 9822 } 9823 9824 static int 9825 ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9826 { 9827 struct scsi_vpd_unit_serial_number *sn_ptr; 9828 struct ctl_lun *lun; 9829 9830 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9831 9832 ctsio->kern_data_ptr = malloc(sizeof(*sn_ptr), M_CTL, M_WAITOK | M_ZERO); 9833 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9834 ctsio->kern_sg_entries = 0; 9835 9836 if (sizeof(*sn_ptr) < alloc_len) { 9837 ctsio->residual = alloc_len - sizeof(*sn_ptr); 9838 ctsio->kern_data_len = sizeof(*sn_ptr); 9839 ctsio->kern_total_len = sizeof(*sn_ptr); 9840 } else { 9841 ctsio->residual = 0; 9842 ctsio->kern_data_len = alloc_len; 9843 ctsio->kern_total_len = alloc_len; 9844 } 9845 ctsio->kern_data_resid = 0; 9846 ctsio->kern_rel_offset = 0; 9847 ctsio->kern_sg_entries = 0; 9848 9849 /* 9850 * The control device is always connected. The disk device, on the 9851 * other hand, may not be online all the time. Need to change this 9852 * to figure out whether the disk device is actually online or not. 9853 */ 9854 if (lun != NULL) 9855 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9856 lun->be_lun->lun_type; 9857 else 9858 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9859 9860 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9861 sn_ptr->length = ctl_min(sizeof(*sn_ptr) - 4, CTL_SN_LEN); 9862 /* 9863 * If we don't have a LUN, we just leave the serial number as 9864 * all spaces. 9865 */ 9866 memset(sn_ptr->serial_num, 0x20, sizeof(sn_ptr->serial_num)); 9867 if (lun != NULL) { 9868 strncpy((char *)sn_ptr->serial_num, 9869 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9870 } 9871 ctsio->scsi_status = SCSI_STATUS_OK; 9872 9873 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9874 ctsio->be_move_done = ctl_config_move_done; 9875 ctl_datamove((union ctl_io *)ctsio); 9876 9877 return (CTL_RETVAL_COMPLETE); 9878 } 9879 9880 9881 static int 9882 ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9883 { 9884 struct scsi_vpd_device_id *devid_ptr; 9885 struct scsi_vpd_id_descriptor *desc; 9886 struct ctl_softc *ctl_softc; 9887 struct ctl_lun *lun; 9888 struct ctl_port *port; 9889 int data_len; 9890 uint8_t proto; 9891 9892 ctl_softc = control_softc; 9893 9894 port = ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]; 9895 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9896 9897 data_len = sizeof(struct scsi_vpd_device_id) + 9898 sizeof(struct scsi_vpd_id_descriptor) + 9899 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9900 sizeof(struct scsi_vpd_id_descriptor) + 9901 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9902 if (lun && lun->lun_devid) 9903 data_len += lun->lun_devid->len; 9904 if (port->port_devid) 9905 data_len += port->port_devid->len; 9906 if (port->target_devid) 9907 data_len += port->target_devid->len; 9908 9909 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9910 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9911 ctsio->kern_sg_entries = 0; 9912 9913 if (data_len < alloc_len) { 9914 ctsio->residual = alloc_len - data_len; 9915 ctsio->kern_data_len = data_len; 9916 ctsio->kern_total_len = data_len; 9917 } else { 9918 ctsio->residual = 0; 9919 ctsio->kern_data_len = alloc_len; 9920 ctsio->kern_total_len = alloc_len; 9921 } 9922 ctsio->kern_data_resid = 0; 9923 ctsio->kern_rel_offset = 0; 9924 ctsio->kern_sg_entries = 0; 9925 9926 /* 9927 * The control device is always connected. The disk device, on the 9928 * other hand, may not be online all the time. 9929 */ 9930 if (lun != NULL) 9931 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9932 lun->be_lun->lun_type; 9933 else 9934 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9935 devid_ptr->page_code = SVPD_DEVICE_ID; 9936 scsi_ulto2b(data_len - 4, devid_ptr->length); 9937 9938 if (port->port_type == CTL_PORT_FC) 9939 proto = SCSI_PROTO_FC << 4; 9940 else if (port->port_type == CTL_PORT_ISCSI) 9941 proto = SCSI_PROTO_ISCSI << 4; 9942 else 9943 proto = SCSI_PROTO_SPI << 4; 9944 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9945 9946 /* 9947 * We're using a LUN association here. i.e., this device ID is a 9948 * per-LUN identifier. 9949 */ 9950 if (lun && lun->lun_devid) { 9951 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9952 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9953 lun->lun_devid->len); 9954 } 9955 9956 /* 9957 * This is for the WWPN which is a port association. 9958 */ 9959 if (port->port_devid) { 9960 memcpy(desc, port->port_devid->data, port->port_devid->len); 9961 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9962 port->port_devid->len); 9963 } 9964 9965 /* 9966 * This is for the Relative Target Port(type 4h) identifier 9967 */ 9968 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9969 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9970 SVPD_ID_TYPE_RELTARG; 9971 desc->length = 4; 9972 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9973 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9974 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9975 9976 /* 9977 * This is for the Target Port Group(type 5h) identifier 9978 */ 9979 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9980 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9981 SVPD_ID_TYPE_TPORTGRP; 9982 desc->length = 4; 9983 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS + 1, 9984 &desc->identifier[2]); 9985 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9986 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9987 9988 /* 9989 * This is for the Target identifier 9990 */ 9991 if (port->target_devid) { 9992 memcpy(desc, port->target_devid->data, port->target_devid->len); 9993 } 9994 9995 ctsio->scsi_status = SCSI_STATUS_OK; 9996 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9997 ctsio->be_move_done = ctl_config_move_done; 9998 ctl_datamove((union ctl_io *)ctsio); 9999 10000 return (CTL_RETVAL_COMPLETE); 10001 } 10002 10003 static int 10004 ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 10005 { 10006 struct ctl_softc *softc = control_softc; 10007 struct scsi_vpd_scsi_ports *sp; 10008 struct scsi_vpd_port_designation *pd; 10009 struct scsi_vpd_port_designation_cont *pdc; 10010 struct ctl_lun *lun; 10011 struct ctl_port *port; 10012 int data_len, num_target_ports, iid_len, id_len, g, pg, p; 10013 int num_target_port_groups, single; 10014 10015 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10016 10017 single = ctl_is_single; 10018 if (single) 10019 num_target_port_groups = 1; 10020 else 10021 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 10022 num_target_ports = 0; 10023 iid_len = 0; 10024 id_len = 0; 10025 mtx_lock(&softc->ctl_lock); 10026 STAILQ_FOREACH(port, &softc->port_list, links) { 10027 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10028 continue; 10029 if (lun != NULL && 10030 ctl_map_lun_back(port->targ_port, lun->lun) >= 10031 CTL_MAX_LUNS) 10032 continue; 10033 num_target_ports++; 10034 if (port->init_devid) 10035 iid_len += port->init_devid->len; 10036 if (port->port_devid) 10037 id_len += port->port_devid->len; 10038 } 10039 mtx_unlock(&softc->ctl_lock); 10040 10041 data_len = sizeof(struct scsi_vpd_scsi_ports) + num_target_port_groups * 10042 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 10043 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 10044 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10045 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 10046 ctsio->kern_sg_entries = 0; 10047 10048 if (data_len < alloc_len) { 10049 ctsio->residual = alloc_len - data_len; 10050 ctsio->kern_data_len = data_len; 10051 ctsio->kern_total_len = data_len; 10052 } else { 10053 ctsio->residual = 0; 10054 ctsio->kern_data_len = alloc_len; 10055 ctsio->kern_total_len = alloc_len; 10056 } 10057 ctsio->kern_data_resid = 0; 10058 ctsio->kern_rel_offset = 0; 10059 ctsio->kern_sg_entries = 0; 10060 10061 /* 10062 * The control device is always connected. The disk device, on the 10063 * other hand, may not be online all the time. Need to change this 10064 * to figure out whether the disk device is actually online or not. 10065 */ 10066 if (lun != NULL) 10067 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 10068 lun->be_lun->lun_type; 10069 else 10070 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10071 10072 sp->page_code = SVPD_SCSI_PORTS; 10073 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 10074 sp->page_length); 10075 pd = &sp->design[0]; 10076 10077 mtx_lock(&softc->ctl_lock); 10078 if (softc->flags & CTL_FLAG_MASTER_SHELF) 10079 pg = 0; 10080 else 10081 pg = 1; 10082 for (g = 0; g < num_target_port_groups; g++) { 10083 STAILQ_FOREACH(port, &softc->port_list, links) { 10084 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10085 continue; 10086 if (lun != NULL && 10087 ctl_map_lun_back(port->targ_port, lun->lun) >= 10088 CTL_MAX_LUNS) 10089 continue; 10090 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 10091 scsi_ulto2b(p, pd->relative_port_id); 10092 if (port->init_devid && g == pg) { 10093 iid_len = port->init_devid->len; 10094 memcpy(pd->initiator_transportid, 10095 port->init_devid->data, port->init_devid->len); 10096 } else 10097 iid_len = 0; 10098 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 10099 pdc = (struct scsi_vpd_port_designation_cont *) 10100 (&pd->initiator_transportid[iid_len]); 10101 if (port->port_devid && g == pg) { 10102 id_len = port->port_devid->len; 10103 memcpy(pdc->target_port_descriptors, 10104 port->port_devid->data, port->port_devid->len); 10105 } else 10106 id_len = 0; 10107 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 10108 pd = (struct scsi_vpd_port_designation *) 10109 ((uint8_t *)pdc->target_port_descriptors + id_len); 10110 } 10111 } 10112 mtx_unlock(&softc->ctl_lock); 10113 10114 ctsio->scsi_status = SCSI_STATUS_OK; 10115 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10116 ctsio->be_move_done = ctl_config_move_done; 10117 ctl_datamove((union ctl_io *)ctsio); 10118 10119 return (CTL_RETVAL_COMPLETE); 10120 } 10121 10122 static int 10123 ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 10124 { 10125 struct scsi_vpd_block_limits *bl_ptr; 10126 struct ctl_lun *lun; 10127 int bs; 10128 10129 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10130 10131 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 10132 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 10133 ctsio->kern_sg_entries = 0; 10134 10135 if (sizeof(*bl_ptr) < alloc_len) { 10136 ctsio->residual = alloc_len - sizeof(*bl_ptr); 10137 ctsio->kern_data_len = sizeof(*bl_ptr); 10138 ctsio->kern_total_len = sizeof(*bl_ptr); 10139 } else { 10140 ctsio->residual = 0; 10141 ctsio->kern_data_len = alloc_len; 10142 ctsio->kern_total_len = alloc_len; 10143 } 10144 ctsio->kern_data_resid = 0; 10145 ctsio->kern_rel_offset = 0; 10146 ctsio->kern_sg_entries = 0; 10147 10148 /* 10149 * The control device is always connected. The disk device, on the 10150 * other hand, may not be online all the time. Need to change this 10151 * to figure out whether the disk device is actually online or not. 10152 */ 10153 if (lun != NULL) 10154 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10155 lun->be_lun->lun_type; 10156 else 10157 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10158 10159 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 10160 scsi_ulto2b(sizeof(*bl_ptr), bl_ptr->page_length); 10161 bl_ptr->max_cmp_write_len = 0xff; 10162 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 10163 if (lun != NULL) { 10164 bs = lun->be_lun->blocksize; 10165 scsi_ulto4b(MAXPHYS / bs, bl_ptr->opt_txfer_len); 10166 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10167 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 10168 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 10169 } 10170 } 10171 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 10172 10173 ctsio->scsi_status = SCSI_STATUS_OK; 10174 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10175 ctsio->be_move_done = ctl_config_move_done; 10176 ctl_datamove((union ctl_io *)ctsio); 10177 10178 return (CTL_RETVAL_COMPLETE); 10179 } 10180 10181 static int 10182 ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10183 { 10184 struct scsi_vpd_logical_block_prov *lbp_ptr; 10185 struct ctl_lun *lun; 10186 10187 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10188 10189 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10190 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10191 ctsio->kern_sg_entries = 0; 10192 10193 if (sizeof(*lbp_ptr) < alloc_len) { 10194 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10195 ctsio->kern_data_len = sizeof(*lbp_ptr); 10196 ctsio->kern_total_len = sizeof(*lbp_ptr); 10197 } else { 10198 ctsio->residual = 0; 10199 ctsio->kern_data_len = alloc_len; 10200 ctsio->kern_total_len = alloc_len; 10201 } 10202 ctsio->kern_data_resid = 0; 10203 ctsio->kern_rel_offset = 0; 10204 ctsio->kern_sg_entries = 0; 10205 10206 /* 10207 * The control device is always connected. The disk device, on the 10208 * other hand, may not be online all the time. Need to change this 10209 * to figure out whether the disk device is actually online or not. 10210 */ 10211 if (lun != NULL) 10212 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10213 lun->be_lun->lun_type; 10214 else 10215 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10216 10217 lbp_ptr->page_code = SVPD_LBP; 10218 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 10219 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | SVPD_LBP_WS10; 10220 10221 ctsio->scsi_status = SCSI_STATUS_OK; 10222 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10223 ctsio->be_move_done = ctl_config_move_done; 10224 ctl_datamove((union ctl_io *)ctsio); 10225 10226 return (CTL_RETVAL_COMPLETE); 10227 } 10228 10229 static int 10230 ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10231 { 10232 struct scsi_inquiry *cdb; 10233 struct ctl_lun *lun; 10234 int alloc_len, retval; 10235 10236 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10237 cdb = (struct scsi_inquiry *)ctsio->cdb; 10238 10239 retval = CTL_RETVAL_COMPLETE; 10240 10241 alloc_len = scsi_2btoul(cdb->length); 10242 10243 switch (cdb->page_code) { 10244 case SVPD_SUPPORTED_PAGES: 10245 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10246 break; 10247 case SVPD_UNIT_SERIAL_NUMBER: 10248 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10249 break; 10250 case SVPD_DEVICE_ID: 10251 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10252 break; 10253 case SVPD_SCSI_PORTS: 10254 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10255 break; 10256 case SVPD_SCSI_TPC: 10257 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10258 break; 10259 case SVPD_BLOCK_LIMITS: 10260 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10261 break; 10262 case SVPD_LBP: 10263 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10264 break; 10265 default: 10266 ctl_set_invalid_field(ctsio, 10267 /*sks_valid*/ 1, 10268 /*command*/ 1, 10269 /*field*/ 2, 10270 /*bit_valid*/ 0, 10271 /*bit*/ 0); 10272 ctl_done((union ctl_io *)ctsio); 10273 retval = CTL_RETVAL_COMPLETE; 10274 break; 10275 } 10276 10277 return (retval); 10278 } 10279 10280 static int 10281 ctl_inquiry_std(struct ctl_scsiio *ctsio) 10282 { 10283 struct scsi_inquiry_data *inq_ptr; 10284 struct scsi_inquiry *cdb; 10285 struct ctl_softc *ctl_softc; 10286 struct ctl_lun *lun; 10287 char *val; 10288 uint32_t alloc_len; 10289 ctl_port_type port_type; 10290 10291 ctl_softc = control_softc; 10292 10293 /* 10294 * Figure out whether we're talking to a Fibre Channel port or not. 10295 * We treat the ioctl front end, and any SCSI adapters, as packetized 10296 * SCSI front ends. 10297 */ 10298 port_type = ctl_softc->ctl_ports[ 10299 ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]->port_type; 10300 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10301 port_type = CTL_PORT_SCSI; 10302 10303 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10304 cdb = (struct scsi_inquiry *)ctsio->cdb; 10305 alloc_len = scsi_2btoul(cdb->length); 10306 10307 /* 10308 * We malloc the full inquiry data size here and fill it 10309 * in. If the user only asks for less, we'll give him 10310 * that much. 10311 */ 10312 ctsio->kern_data_ptr = malloc(sizeof(*inq_ptr), M_CTL, M_WAITOK | M_ZERO); 10313 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10314 ctsio->kern_sg_entries = 0; 10315 ctsio->kern_data_resid = 0; 10316 ctsio->kern_rel_offset = 0; 10317 10318 if (sizeof(*inq_ptr) < alloc_len) { 10319 ctsio->residual = alloc_len - sizeof(*inq_ptr); 10320 ctsio->kern_data_len = sizeof(*inq_ptr); 10321 ctsio->kern_total_len = sizeof(*inq_ptr); 10322 } else { 10323 ctsio->residual = 0; 10324 ctsio->kern_data_len = alloc_len; 10325 ctsio->kern_total_len = alloc_len; 10326 } 10327 10328 /* 10329 * If we have a LUN configured, report it as connected. Otherwise, 10330 * report that it is offline or no device is supported, depending 10331 * on the value of inquiry_pq_no_lun. 10332 * 10333 * According to the spec (SPC-4 r34), the peripheral qualifier 10334 * SID_QUAL_LU_OFFLINE (001b) is used in the following scenario: 10335 * 10336 * "A peripheral device having the specified peripheral device type 10337 * is not connected to this logical unit. However, the device 10338 * server is capable of supporting the specified peripheral device 10339 * type on this logical unit." 10340 * 10341 * According to the same spec, the peripheral qualifier 10342 * SID_QUAL_BAD_LU (011b) is used in this scenario: 10343 * 10344 * "The device server is not capable of supporting a peripheral 10345 * device on this logical unit. For this peripheral qualifier the 10346 * peripheral device type shall be set to 1Fh. All other peripheral 10347 * device type values are reserved for this peripheral qualifier." 10348 * 10349 * Given the text, it would seem that we probably want to report that 10350 * the LUN is offline here. There is no LUN connected, but we can 10351 * support a LUN at the given LUN number. 10352 * 10353 * In the real world, though, it sounds like things are a little 10354 * different: 10355 * 10356 * - Linux, when presented with a LUN with the offline peripheral 10357 * qualifier, will create an sg driver instance for it. So when 10358 * you attach it to CTL, you wind up with a ton of sg driver 10359 * instances. (One for every LUN that Linux bothered to probe.) 10360 * Linux does this despite the fact that it issues a REPORT LUNs 10361 * to LUN 0 to get the inventory of supported LUNs. 10362 * 10363 * - There is other anecdotal evidence (from Emulex folks) about 10364 * arrays that use the offline peripheral qualifier for LUNs that 10365 * are on the "passive" path in an active/passive array. 10366 * 10367 * So the solution is provide a hopefully reasonable default 10368 * (return bad/no LUN) and allow the user to change the behavior 10369 * with a tunable/sysctl variable. 10370 */ 10371 if (lun != NULL) 10372 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10373 lun->be_lun->lun_type; 10374 else if (ctl_softc->inquiry_pq_no_lun == 0) 10375 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10376 else 10377 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10378 10379 /* RMB in byte 2 is 0 */ 10380 inq_ptr->version = SCSI_REV_SPC4; 10381 10382 /* 10383 * According to SAM-3, even if a device only supports a single 10384 * level of LUN addressing, it should still set the HISUP bit: 10385 * 10386 * 4.9.1 Logical unit numbers overview 10387 * 10388 * All logical unit number formats described in this standard are 10389 * hierarchical in structure even when only a single level in that 10390 * hierarchy is used. The HISUP bit shall be set to one in the 10391 * standard INQUIRY data (see SPC-2) when any logical unit number 10392 * format described in this standard is used. Non-hierarchical 10393 * formats are outside the scope of this standard. 10394 * 10395 * Therefore we set the HiSup bit here. 10396 * 10397 * The reponse format is 2, per SPC-3. 10398 */ 10399 inq_ptr->response_format = SID_HiSup | 2; 10400 10401 inq_ptr->additional_length = sizeof(*inq_ptr) - 4; 10402 CTL_DEBUG_PRINT(("additional_length = %d\n", 10403 inq_ptr->additional_length)); 10404 10405 inq_ptr->spc3_flags = SPC3_SID_3PC; 10406 if (!ctl_is_single) 10407 inq_ptr->spc3_flags |= SPC3_SID_TPGS_IMPLICIT; 10408 /* 16 bit addressing */ 10409 if (port_type == CTL_PORT_SCSI) 10410 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10411 /* XXX set the SID_MultiP bit here if we're actually going to 10412 respond on multiple ports */ 10413 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10414 10415 /* 16 bit data bus, synchronous transfers */ 10416 if (port_type == CTL_PORT_SCSI) 10417 inq_ptr->flags = SID_WBus16 | SID_Sync; 10418 /* 10419 * XXX KDM do we want to support tagged queueing on the control 10420 * device at all? 10421 */ 10422 if ((lun == NULL) 10423 || (lun->be_lun->lun_type != T_PROCESSOR)) 10424 inq_ptr->flags |= SID_CmdQue; 10425 /* 10426 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10427 * We have 8 bytes for the vendor name, and 16 bytes for the device 10428 * name and 4 bytes for the revision. 10429 */ 10430 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10431 "vendor")) == NULL) { 10432 strcpy(inq_ptr->vendor, CTL_VENDOR); 10433 } else { 10434 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10435 strncpy(inq_ptr->vendor, val, 10436 min(sizeof(inq_ptr->vendor), strlen(val))); 10437 } 10438 if (lun == NULL) { 10439 strcpy(inq_ptr->product, CTL_DIRECT_PRODUCT); 10440 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10441 switch (lun->be_lun->lun_type) { 10442 case T_DIRECT: 10443 strcpy(inq_ptr->product, CTL_DIRECT_PRODUCT); 10444 break; 10445 case T_PROCESSOR: 10446 strcpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT); 10447 break; 10448 default: 10449 strcpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT); 10450 break; 10451 } 10452 } else { 10453 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10454 strncpy(inq_ptr->product, val, 10455 min(sizeof(inq_ptr->product), strlen(val))); 10456 } 10457 10458 /* 10459 * XXX make this a macro somewhere so it automatically gets 10460 * incremented when we make changes. 10461 */ 10462 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10463 "revision")) == NULL) { 10464 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10465 } else { 10466 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10467 strncpy(inq_ptr->revision, val, 10468 min(sizeof(inq_ptr->revision), strlen(val))); 10469 } 10470 10471 /* 10472 * For parallel SCSI, we support double transition and single 10473 * transition clocking. We also support QAS (Quick Arbitration 10474 * and Selection) and Information Unit transfers on both the 10475 * control and array devices. 10476 */ 10477 if (port_type == CTL_PORT_SCSI) 10478 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10479 SID_SPI_IUS; 10480 10481 /* SAM-5 (no version claimed) */ 10482 scsi_ulto2b(0x00A0, inq_ptr->version1); 10483 /* SPC-4 (no version claimed) */ 10484 scsi_ulto2b(0x0460, inq_ptr->version2); 10485 if (port_type == CTL_PORT_FC) { 10486 /* FCP-2 ANSI INCITS.350:2003 */ 10487 scsi_ulto2b(0x0917, inq_ptr->version3); 10488 } else if (port_type == CTL_PORT_SCSI) { 10489 /* SPI-4 ANSI INCITS.362:200x */ 10490 scsi_ulto2b(0x0B56, inq_ptr->version3); 10491 } else if (port_type == CTL_PORT_ISCSI) { 10492 /* iSCSI (no version claimed) */ 10493 scsi_ulto2b(0x0960, inq_ptr->version3); 10494 } else if (port_type == CTL_PORT_SAS) { 10495 /* SAS (no version claimed) */ 10496 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10497 } 10498 10499 if (lun == NULL) { 10500 /* SBC-3 (no version claimed) */ 10501 scsi_ulto2b(0x04C0, inq_ptr->version4); 10502 } else { 10503 switch (lun->be_lun->lun_type) { 10504 case T_DIRECT: 10505 /* SBC-3 (no version claimed) */ 10506 scsi_ulto2b(0x04C0, inq_ptr->version4); 10507 break; 10508 case T_PROCESSOR: 10509 default: 10510 break; 10511 } 10512 } 10513 10514 ctsio->scsi_status = SCSI_STATUS_OK; 10515 if (ctsio->kern_data_len > 0) { 10516 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10517 ctsio->be_move_done = ctl_config_move_done; 10518 ctl_datamove((union ctl_io *)ctsio); 10519 } else { 10520 ctsio->io_hdr.status = CTL_SUCCESS; 10521 ctl_done((union ctl_io *)ctsio); 10522 } 10523 10524 return (CTL_RETVAL_COMPLETE); 10525 } 10526 10527 int 10528 ctl_inquiry(struct ctl_scsiio *ctsio) 10529 { 10530 struct scsi_inquiry *cdb; 10531 int retval; 10532 10533 cdb = (struct scsi_inquiry *)ctsio->cdb; 10534 10535 retval = 0; 10536 10537 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10538 10539 /* 10540 * Right now, we don't support the CmdDt inquiry information. 10541 * This would be nice to support in the future. When we do 10542 * support it, we should change this test so that it checks to make 10543 * sure SI_EVPD and SI_CMDDT aren't both set at the same time. 10544 */ 10545 #ifdef notyet 10546 if (((cdb->byte2 & SI_EVPD) 10547 && (cdb->byte2 & SI_CMDDT))) 10548 #endif 10549 if (cdb->byte2 & SI_CMDDT) { 10550 /* 10551 * Point to the SI_CMDDT bit. We might change this 10552 * when we support SI_CMDDT, but since both bits would be 10553 * "wrong", this should probably just stay as-is then. 10554 */ 10555 ctl_set_invalid_field(ctsio, 10556 /*sks_valid*/ 1, 10557 /*command*/ 1, 10558 /*field*/ 1, 10559 /*bit_valid*/ 1, 10560 /*bit*/ 1); 10561 ctl_done((union ctl_io *)ctsio); 10562 return (CTL_RETVAL_COMPLETE); 10563 } 10564 if (cdb->byte2 & SI_EVPD) 10565 retval = ctl_inquiry_evpd(ctsio); 10566 #ifdef notyet 10567 else if (cdb->byte2 & SI_CMDDT) 10568 retval = ctl_inquiry_cmddt(ctsio); 10569 #endif 10570 else 10571 retval = ctl_inquiry_std(ctsio); 10572 10573 return (retval); 10574 } 10575 10576 /* 10577 * For known CDB types, parse the LBA and length. 10578 */ 10579 static int 10580 ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint32_t *len) 10581 { 10582 if (io->io_hdr.io_type != CTL_IO_SCSI) 10583 return (1); 10584 10585 switch (io->scsiio.cdb[0]) { 10586 case COMPARE_AND_WRITE: { 10587 struct scsi_compare_and_write *cdb; 10588 10589 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10590 10591 *lba = scsi_8btou64(cdb->addr); 10592 *len = cdb->length; 10593 break; 10594 } 10595 case READ_6: 10596 case WRITE_6: { 10597 struct scsi_rw_6 *cdb; 10598 10599 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10600 10601 *lba = scsi_3btoul(cdb->addr); 10602 /* only 5 bits are valid in the most significant address byte */ 10603 *lba &= 0x1fffff; 10604 *len = cdb->length; 10605 break; 10606 } 10607 case READ_10: 10608 case WRITE_10: { 10609 struct scsi_rw_10 *cdb; 10610 10611 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10612 10613 *lba = scsi_4btoul(cdb->addr); 10614 *len = scsi_2btoul(cdb->length); 10615 break; 10616 } 10617 case WRITE_VERIFY_10: { 10618 struct scsi_write_verify_10 *cdb; 10619 10620 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10621 10622 *lba = scsi_4btoul(cdb->addr); 10623 *len = scsi_2btoul(cdb->length); 10624 break; 10625 } 10626 case READ_12: 10627 case WRITE_12: { 10628 struct scsi_rw_12 *cdb; 10629 10630 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10631 10632 *lba = scsi_4btoul(cdb->addr); 10633 *len = scsi_4btoul(cdb->length); 10634 break; 10635 } 10636 case WRITE_VERIFY_12: { 10637 struct scsi_write_verify_12 *cdb; 10638 10639 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10640 10641 *lba = scsi_4btoul(cdb->addr); 10642 *len = scsi_4btoul(cdb->length); 10643 break; 10644 } 10645 case READ_16: 10646 case WRITE_16: { 10647 struct scsi_rw_16 *cdb; 10648 10649 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10650 10651 *lba = scsi_8btou64(cdb->addr); 10652 *len = scsi_4btoul(cdb->length); 10653 break; 10654 } 10655 case WRITE_VERIFY_16: { 10656 struct scsi_write_verify_16 *cdb; 10657 10658 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10659 10660 10661 *lba = scsi_8btou64(cdb->addr); 10662 *len = scsi_4btoul(cdb->length); 10663 break; 10664 } 10665 case WRITE_SAME_10: { 10666 struct scsi_write_same_10 *cdb; 10667 10668 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10669 10670 *lba = scsi_4btoul(cdb->addr); 10671 *len = scsi_2btoul(cdb->length); 10672 break; 10673 } 10674 case WRITE_SAME_16: { 10675 struct scsi_write_same_16 *cdb; 10676 10677 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10678 10679 *lba = scsi_8btou64(cdb->addr); 10680 *len = scsi_4btoul(cdb->length); 10681 break; 10682 } 10683 case VERIFY_10: { 10684 struct scsi_verify_10 *cdb; 10685 10686 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10687 10688 *lba = scsi_4btoul(cdb->addr); 10689 *len = scsi_2btoul(cdb->length); 10690 break; 10691 } 10692 case VERIFY_12: { 10693 struct scsi_verify_12 *cdb; 10694 10695 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10696 10697 *lba = scsi_4btoul(cdb->addr); 10698 *len = scsi_4btoul(cdb->length); 10699 break; 10700 } 10701 case VERIFY_16: { 10702 struct scsi_verify_16 *cdb; 10703 10704 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10705 10706 *lba = scsi_8btou64(cdb->addr); 10707 *len = scsi_4btoul(cdb->length); 10708 break; 10709 } 10710 default: 10711 return (1); 10712 break; /* NOTREACHED */ 10713 } 10714 10715 return (0); 10716 } 10717 10718 static ctl_action 10719 ctl_extent_check_lba(uint64_t lba1, uint32_t len1, uint64_t lba2, uint32_t len2) 10720 { 10721 uint64_t endlba1, endlba2; 10722 10723 endlba1 = lba1 + len1 - 1; 10724 endlba2 = lba2 + len2 - 1; 10725 10726 if ((endlba1 < lba2) 10727 || (endlba2 < lba1)) 10728 return (CTL_ACTION_PASS); 10729 else 10730 return (CTL_ACTION_BLOCK); 10731 } 10732 10733 static ctl_action 10734 ctl_extent_check(union ctl_io *io1, union ctl_io *io2) 10735 { 10736 uint64_t lba1, lba2; 10737 uint32_t len1, len2; 10738 int retval; 10739 10740 retval = ctl_get_lba_len(io1, &lba1, &len1); 10741 if (retval != 0) 10742 return (CTL_ACTION_ERROR); 10743 10744 retval = ctl_get_lba_len(io2, &lba2, &len2); 10745 if (retval != 0) 10746 return (CTL_ACTION_ERROR); 10747 10748 return (ctl_extent_check_lba(lba1, len1, lba2, len2)); 10749 } 10750 10751 static ctl_action 10752 ctl_check_for_blockage(union ctl_io *pending_io, union ctl_io *ooa_io) 10753 { 10754 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10755 ctl_serialize_action *serialize_row; 10756 10757 /* 10758 * The initiator attempted multiple untagged commands at the same 10759 * time. Can't do that. 10760 */ 10761 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10762 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10763 && ((pending_io->io_hdr.nexus.targ_port == 10764 ooa_io->io_hdr.nexus.targ_port) 10765 && (pending_io->io_hdr.nexus.initid.id == 10766 ooa_io->io_hdr.nexus.initid.id)) 10767 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10768 return (CTL_ACTION_OVERLAP); 10769 10770 /* 10771 * The initiator attempted to send multiple tagged commands with 10772 * the same ID. (It's fine if different initiators have the same 10773 * tag ID.) 10774 * 10775 * Even if all of those conditions are true, we don't kill the I/O 10776 * if the command ahead of us has been aborted. We won't end up 10777 * sending it to the FETD, and it's perfectly legal to resend a 10778 * command with the same tag number as long as the previous 10779 * instance of this tag number has been aborted somehow. 10780 */ 10781 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10782 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10783 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10784 && ((pending_io->io_hdr.nexus.targ_port == 10785 ooa_io->io_hdr.nexus.targ_port) 10786 && (pending_io->io_hdr.nexus.initid.id == 10787 ooa_io->io_hdr.nexus.initid.id)) 10788 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10789 return (CTL_ACTION_OVERLAP_TAG); 10790 10791 /* 10792 * If we get a head of queue tag, SAM-3 says that we should 10793 * immediately execute it. 10794 * 10795 * What happens if this command would normally block for some other 10796 * reason? e.g. a request sense with a head of queue tag 10797 * immediately after a write. Normally that would block, but this 10798 * will result in its getting executed immediately... 10799 * 10800 * We currently return "pass" instead of "skip", so we'll end up 10801 * going through the rest of the queue to check for overlapped tags. 10802 * 10803 * XXX KDM check for other types of blockage first?? 10804 */ 10805 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10806 return (CTL_ACTION_PASS); 10807 10808 /* 10809 * Ordered tags have to block until all items ahead of them 10810 * have completed. If we get called with an ordered tag, we always 10811 * block, if something else is ahead of us in the queue. 10812 */ 10813 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 10814 return (CTL_ACTION_BLOCK); 10815 10816 /* 10817 * Simple tags get blocked until all head of queue and ordered tags 10818 * ahead of them have completed. I'm lumping untagged commands in 10819 * with simple tags here. XXX KDM is that the right thing to do? 10820 */ 10821 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10822 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 10823 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10824 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 10825 return (CTL_ACTION_BLOCK); 10826 10827 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio); 10828 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio); 10829 10830 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 10831 10832 switch (serialize_row[pending_entry->seridx]) { 10833 case CTL_SER_BLOCK: 10834 return (CTL_ACTION_BLOCK); 10835 break; /* NOTREACHED */ 10836 case CTL_SER_EXTENT: 10837 return (ctl_extent_check(pending_io, ooa_io)); 10838 break; /* NOTREACHED */ 10839 case CTL_SER_PASS: 10840 return (CTL_ACTION_PASS); 10841 break; /* NOTREACHED */ 10842 case CTL_SER_SKIP: 10843 return (CTL_ACTION_SKIP); 10844 break; 10845 default: 10846 panic("invalid serialization value %d", 10847 serialize_row[pending_entry->seridx]); 10848 break; /* NOTREACHED */ 10849 } 10850 10851 return (CTL_ACTION_ERROR); 10852 } 10853 10854 /* 10855 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 10856 * Assumptions: 10857 * - pending_io is generally either incoming, or on the blocked queue 10858 * - starting I/O is the I/O we want to start the check with. 10859 */ 10860 static ctl_action 10861 ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 10862 union ctl_io *starting_io) 10863 { 10864 union ctl_io *ooa_io; 10865 ctl_action action; 10866 10867 mtx_assert(&lun->lun_lock, MA_OWNED); 10868 10869 /* 10870 * Run back along the OOA queue, starting with the current 10871 * blocked I/O and going through every I/O before it on the 10872 * queue. If starting_io is NULL, we'll just end up returning 10873 * CTL_ACTION_PASS. 10874 */ 10875 for (ooa_io = starting_io; ooa_io != NULL; 10876 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 10877 ooa_links)){ 10878 10879 /* 10880 * This routine just checks to see whether 10881 * cur_blocked is blocked by ooa_io, which is ahead 10882 * of it in the queue. It doesn't queue/dequeue 10883 * cur_blocked. 10884 */ 10885 action = ctl_check_for_blockage(pending_io, ooa_io); 10886 switch (action) { 10887 case CTL_ACTION_BLOCK: 10888 case CTL_ACTION_OVERLAP: 10889 case CTL_ACTION_OVERLAP_TAG: 10890 case CTL_ACTION_SKIP: 10891 case CTL_ACTION_ERROR: 10892 return (action); 10893 break; /* NOTREACHED */ 10894 case CTL_ACTION_PASS: 10895 break; 10896 default: 10897 panic("invalid action %d", action); 10898 break; /* NOTREACHED */ 10899 } 10900 } 10901 10902 return (CTL_ACTION_PASS); 10903 } 10904 10905 /* 10906 * Assumptions: 10907 * - An I/O has just completed, and has been removed from the per-LUN OOA 10908 * queue, so some items on the blocked queue may now be unblocked. 10909 */ 10910 static int 10911 ctl_check_blocked(struct ctl_lun *lun) 10912 { 10913 union ctl_io *cur_blocked, *next_blocked; 10914 10915 mtx_assert(&lun->lun_lock, MA_OWNED); 10916 10917 /* 10918 * Run forward from the head of the blocked queue, checking each 10919 * entry against the I/Os prior to it on the OOA queue to see if 10920 * there is still any blockage. 10921 * 10922 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 10923 * with our removing a variable on it while it is traversing the 10924 * list. 10925 */ 10926 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 10927 cur_blocked != NULL; cur_blocked = next_blocked) { 10928 union ctl_io *prev_ooa; 10929 ctl_action action; 10930 10931 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 10932 blocked_links); 10933 10934 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 10935 ctl_ooaq, ooa_links); 10936 10937 /* 10938 * If cur_blocked happens to be the first item in the OOA 10939 * queue now, prev_ooa will be NULL, and the action 10940 * returned will just be CTL_ACTION_PASS. 10941 */ 10942 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 10943 10944 switch (action) { 10945 case CTL_ACTION_BLOCK: 10946 /* Nothing to do here, still blocked */ 10947 break; 10948 case CTL_ACTION_OVERLAP: 10949 case CTL_ACTION_OVERLAP_TAG: 10950 /* 10951 * This shouldn't happen! In theory we've already 10952 * checked this command for overlap... 10953 */ 10954 break; 10955 case CTL_ACTION_PASS: 10956 case CTL_ACTION_SKIP: { 10957 struct ctl_softc *softc; 10958 const struct ctl_cmd_entry *entry; 10959 uint32_t initidx; 10960 int isc_retval; 10961 10962 /* 10963 * The skip case shouldn't happen, this transaction 10964 * should have never made it onto the blocked queue. 10965 */ 10966 /* 10967 * This I/O is no longer blocked, we can remove it 10968 * from the blocked queue. Since this is a TAILQ 10969 * (doubly linked list), we can do O(1) removals 10970 * from any place on the list. 10971 */ 10972 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 10973 blocked_links); 10974 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 10975 10976 if (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC){ 10977 /* 10978 * Need to send IO back to original side to 10979 * run 10980 */ 10981 union ctl_ha_msg msg_info; 10982 10983 msg_info.hdr.original_sc = 10984 cur_blocked->io_hdr.original_sc; 10985 msg_info.hdr.serializing_sc = cur_blocked; 10986 msg_info.hdr.msg_type = CTL_MSG_R2R; 10987 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 10988 &msg_info, sizeof(msg_info), 0)) > 10989 CTL_HA_STATUS_SUCCESS) { 10990 printf("CTL:Check Blocked error from " 10991 "ctl_ha_msg_send %d\n", 10992 isc_retval); 10993 } 10994 break; 10995 } 10996 entry = ctl_get_cmd_entry(&cur_blocked->scsiio); 10997 softc = control_softc; 10998 10999 initidx = ctl_get_initindex(&cur_blocked->io_hdr.nexus); 11000 11001 /* 11002 * Check this I/O for LUN state changes that may 11003 * have happened while this command was blocked. 11004 * The LUN state may have been changed by a command 11005 * ahead of us in the queue, so we need to re-check 11006 * for any states that can be caused by SCSI 11007 * commands. 11008 */ 11009 if (ctl_scsiio_lun_check(softc, lun, entry, 11010 &cur_blocked->scsiio) == 0) { 11011 cur_blocked->io_hdr.flags |= 11012 CTL_FLAG_IS_WAS_ON_RTR; 11013 ctl_enqueue_rtr(cur_blocked); 11014 } else 11015 ctl_done(cur_blocked); 11016 break; 11017 } 11018 default: 11019 /* 11020 * This probably shouldn't happen -- we shouldn't 11021 * get CTL_ACTION_ERROR, or anything else. 11022 */ 11023 break; 11024 } 11025 } 11026 11027 return (CTL_RETVAL_COMPLETE); 11028 } 11029 11030 /* 11031 * This routine (with one exception) checks LUN flags that can be set by 11032 * commands ahead of us in the OOA queue. These flags have to be checked 11033 * when a command initially comes in, and when we pull a command off the 11034 * blocked queue and are preparing to execute it. The reason we have to 11035 * check these flags for commands on the blocked queue is that the LUN 11036 * state may have been changed by a command ahead of us while we're on the 11037 * blocked queue. 11038 * 11039 * Ordering is somewhat important with these checks, so please pay 11040 * careful attention to the placement of any new checks. 11041 */ 11042 static int 11043 ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 11044 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11045 { 11046 int retval; 11047 11048 retval = 0; 11049 11050 mtx_assert(&lun->lun_lock, MA_OWNED); 11051 11052 /* 11053 * If this shelf is a secondary shelf controller, we have to reject 11054 * any media access commands. 11055 */ 11056 #if 0 11057 /* No longer needed for HA */ 11058 if (((ctl_softc->flags & CTL_FLAG_MASTER_SHELF) == 0) 11059 && ((entry->flags & CTL_CMD_FLAG_OK_ON_SECONDARY) == 0)) { 11060 ctl_set_lun_standby(ctsio); 11061 retval = 1; 11062 goto bailout; 11063 } 11064 #endif 11065 11066 /* 11067 * Check for a reservation conflict. If this command isn't allowed 11068 * even on reserved LUNs, and if this initiator isn't the one who 11069 * reserved us, reject the command with a reservation conflict. 11070 */ 11071 if ((lun->flags & CTL_LUN_RESERVED) 11072 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11073 if ((ctsio->io_hdr.nexus.initid.id != lun->rsv_nexus.initid.id) 11074 || (ctsio->io_hdr.nexus.targ_port != lun->rsv_nexus.targ_port) 11075 || (ctsio->io_hdr.nexus.targ_target.id != 11076 lun->rsv_nexus.targ_target.id)) { 11077 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11078 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11079 retval = 1; 11080 goto bailout; 11081 } 11082 } 11083 11084 if ( (lun->flags & CTL_LUN_PR_RESERVED) 11085 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV) == 0)) { 11086 uint32_t residx; 11087 11088 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 11089 /* 11090 * if we aren't registered or it's a res holder type 11091 * reservation and this isn't the res holder then set a 11092 * conflict. 11093 * NOTE: Commands which might be allowed on write exclusive 11094 * type reservations are checked in the particular command 11095 * for a conflict. Read and SSU are the only ones. 11096 */ 11097 if (!lun->per_res[residx].registered 11098 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 11099 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11100 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11101 retval = 1; 11102 goto bailout; 11103 } 11104 11105 } 11106 11107 if ((lun->flags & CTL_LUN_OFFLINE) 11108 && ((entry->flags & CTL_CMD_FLAG_OK_ON_OFFLINE) == 0)) { 11109 ctl_set_lun_not_ready(ctsio); 11110 retval = 1; 11111 goto bailout; 11112 } 11113 11114 /* 11115 * If the LUN is stopped, see if this particular command is allowed 11116 * for a stopped lun. Otherwise, reject it with 0x04,0x02. 11117 */ 11118 if ((lun->flags & CTL_LUN_STOPPED) 11119 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 11120 /* "Logical unit not ready, initializing cmd. required" */ 11121 ctl_set_lun_stopped(ctsio); 11122 retval = 1; 11123 goto bailout; 11124 } 11125 11126 if ((lun->flags & CTL_LUN_INOPERABLE) 11127 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 11128 /* "Medium format corrupted" */ 11129 ctl_set_medium_format_corrupted(ctsio); 11130 retval = 1; 11131 goto bailout; 11132 } 11133 11134 bailout: 11135 return (retval); 11136 11137 } 11138 11139 static void 11140 ctl_failover_io(union ctl_io *io, int have_lock) 11141 { 11142 ctl_set_busy(&io->scsiio); 11143 ctl_done(io); 11144 } 11145 11146 static void 11147 ctl_failover(void) 11148 { 11149 struct ctl_lun *lun; 11150 struct ctl_softc *ctl_softc; 11151 union ctl_io *next_io, *pending_io; 11152 union ctl_io *io; 11153 int lun_idx; 11154 int i; 11155 11156 ctl_softc = control_softc; 11157 11158 mtx_lock(&ctl_softc->ctl_lock); 11159 /* 11160 * Remove any cmds from the other SC from the rtr queue. These 11161 * will obviously only be for LUNs for which we're the primary. 11162 * We can't send status or get/send data for these commands. 11163 * Since they haven't been executed yet, we can just remove them. 11164 * We'll either abort them or delete them below, depending on 11165 * which HA mode we're in. 11166 */ 11167 #ifdef notyet 11168 mtx_lock(&ctl_softc->queue_lock); 11169 for (io = (union ctl_io *)STAILQ_FIRST(&ctl_softc->rtr_queue); 11170 io != NULL; io = next_io) { 11171 next_io = (union ctl_io *)STAILQ_NEXT(&io->io_hdr, links); 11172 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11173 STAILQ_REMOVE(&ctl_softc->rtr_queue, &io->io_hdr, 11174 ctl_io_hdr, links); 11175 } 11176 mtx_unlock(&ctl_softc->queue_lock); 11177 #endif 11178 11179 for (lun_idx=0; lun_idx < ctl_softc->num_luns; lun_idx++) { 11180 lun = ctl_softc->ctl_luns[lun_idx]; 11181 if (lun==NULL) 11182 continue; 11183 11184 /* 11185 * Processor LUNs are primary on both sides. 11186 * XXX will this always be true? 11187 */ 11188 if (lun->be_lun->lun_type == T_PROCESSOR) 11189 continue; 11190 11191 if ((lun->flags & CTL_LUN_PRIMARY_SC) 11192 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11193 printf("FAILOVER: primary lun %d\n", lun_idx); 11194 /* 11195 * Remove all commands from the other SC. First from the 11196 * blocked queue then from the ooa queue. Once we have 11197 * removed them. Call ctl_check_blocked to see if there 11198 * is anything that can run. 11199 */ 11200 for (io = (union ctl_io *)TAILQ_FIRST( 11201 &lun->blocked_queue); io != NULL; io = next_io) { 11202 11203 next_io = (union ctl_io *)TAILQ_NEXT( 11204 &io->io_hdr, blocked_links); 11205 11206 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11207 TAILQ_REMOVE(&lun->blocked_queue, 11208 &io->io_hdr,blocked_links); 11209 io->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11210 TAILQ_REMOVE(&lun->ooa_queue, 11211 &io->io_hdr, ooa_links); 11212 11213 ctl_free_io(io); 11214 } 11215 } 11216 11217 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11218 io != NULL; io = next_io) { 11219 11220 next_io = (union ctl_io *)TAILQ_NEXT( 11221 &io->io_hdr, ooa_links); 11222 11223 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11224 11225 TAILQ_REMOVE(&lun->ooa_queue, 11226 &io->io_hdr, 11227 ooa_links); 11228 11229 ctl_free_io(io); 11230 } 11231 } 11232 ctl_check_blocked(lun); 11233 } else if ((lun->flags & CTL_LUN_PRIMARY_SC) 11234 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11235 11236 printf("FAILOVER: primary lun %d\n", lun_idx); 11237 /* 11238 * Abort all commands from the other SC. We can't 11239 * send status back for them now. These should get 11240 * cleaned up when they are completed or come out 11241 * for a datamove operation. 11242 */ 11243 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11244 io != NULL; io = next_io) { 11245 next_io = (union ctl_io *)TAILQ_NEXT( 11246 &io->io_hdr, ooa_links); 11247 11248 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11249 io->io_hdr.flags |= CTL_FLAG_ABORT; 11250 } 11251 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11252 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11253 11254 printf("FAILOVER: secondary lun %d\n", lun_idx); 11255 11256 lun->flags |= CTL_LUN_PRIMARY_SC; 11257 11258 /* 11259 * We send all I/O that was sent to this controller 11260 * and redirected to the other side back with 11261 * busy status, and have the initiator retry it. 11262 * Figuring out how much data has been transferred, 11263 * etc. and picking up where we left off would be 11264 * very tricky. 11265 * 11266 * XXX KDM need to remove I/O from the blocked 11267 * queue as well! 11268 */ 11269 for (pending_io = (union ctl_io *)TAILQ_FIRST( 11270 &lun->ooa_queue); pending_io != NULL; 11271 pending_io = next_io) { 11272 11273 next_io = (union ctl_io *)TAILQ_NEXT( 11274 &pending_io->io_hdr, ooa_links); 11275 11276 pending_io->io_hdr.flags &= 11277 ~CTL_FLAG_SENT_2OTHER_SC; 11278 11279 if (pending_io->io_hdr.flags & 11280 CTL_FLAG_IO_ACTIVE) { 11281 pending_io->io_hdr.flags |= 11282 CTL_FLAG_FAILOVER; 11283 } else { 11284 ctl_set_busy(&pending_io->scsiio); 11285 ctl_done(pending_io); 11286 } 11287 } 11288 11289 /* 11290 * Build Unit Attention 11291 */ 11292 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11293 lun->pending_ua[i] |= 11294 CTL_UA_ASYM_ACC_CHANGE; 11295 } 11296 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11297 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11298 printf("FAILOVER: secondary lun %d\n", lun_idx); 11299 /* 11300 * if the first io on the OOA is not on the RtR queue 11301 * add it. 11302 */ 11303 lun->flags |= CTL_LUN_PRIMARY_SC; 11304 11305 pending_io = (union ctl_io *)TAILQ_FIRST( 11306 &lun->ooa_queue); 11307 if (pending_io==NULL) { 11308 printf("Nothing on OOA queue\n"); 11309 continue; 11310 } 11311 11312 pending_io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11313 if ((pending_io->io_hdr.flags & 11314 CTL_FLAG_IS_WAS_ON_RTR) == 0) { 11315 pending_io->io_hdr.flags |= 11316 CTL_FLAG_IS_WAS_ON_RTR; 11317 ctl_enqueue_rtr(pending_io); 11318 } 11319 #if 0 11320 else 11321 { 11322 printf("Tag 0x%04x is running\n", 11323 pending_io->scsiio.tag_num); 11324 } 11325 #endif 11326 11327 next_io = (union ctl_io *)TAILQ_NEXT( 11328 &pending_io->io_hdr, ooa_links); 11329 for (pending_io=next_io; pending_io != NULL; 11330 pending_io = next_io) { 11331 pending_io->io_hdr.flags &= 11332 ~CTL_FLAG_SENT_2OTHER_SC; 11333 next_io = (union ctl_io *)TAILQ_NEXT( 11334 &pending_io->io_hdr, ooa_links); 11335 if (pending_io->io_hdr.flags & 11336 CTL_FLAG_IS_WAS_ON_RTR) { 11337 #if 0 11338 printf("Tag 0x%04x is running\n", 11339 pending_io->scsiio.tag_num); 11340 #endif 11341 continue; 11342 } 11343 11344 switch (ctl_check_ooa(lun, pending_io, 11345 (union ctl_io *)TAILQ_PREV( 11346 &pending_io->io_hdr, ctl_ooaq, 11347 ooa_links))) { 11348 11349 case CTL_ACTION_BLOCK: 11350 TAILQ_INSERT_TAIL(&lun->blocked_queue, 11351 &pending_io->io_hdr, 11352 blocked_links); 11353 pending_io->io_hdr.flags |= 11354 CTL_FLAG_BLOCKED; 11355 break; 11356 case CTL_ACTION_PASS: 11357 case CTL_ACTION_SKIP: 11358 pending_io->io_hdr.flags |= 11359 CTL_FLAG_IS_WAS_ON_RTR; 11360 ctl_enqueue_rtr(pending_io); 11361 break; 11362 case CTL_ACTION_OVERLAP: 11363 ctl_set_overlapped_cmd( 11364 (struct ctl_scsiio *)pending_io); 11365 ctl_done(pending_io); 11366 break; 11367 case CTL_ACTION_OVERLAP_TAG: 11368 ctl_set_overlapped_tag( 11369 (struct ctl_scsiio *)pending_io, 11370 pending_io->scsiio.tag_num & 0xff); 11371 ctl_done(pending_io); 11372 break; 11373 case CTL_ACTION_ERROR: 11374 default: 11375 ctl_set_internal_failure( 11376 (struct ctl_scsiio *)pending_io, 11377 0, // sks_valid 11378 0); //retry count 11379 ctl_done(pending_io); 11380 break; 11381 } 11382 } 11383 11384 /* 11385 * Build Unit Attention 11386 */ 11387 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11388 lun->pending_ua[i] |= 11389 CTL_UA_ASYM_ACC_CHANGE; 11390 } 11391 } else { 11392 panic("Unhandled HA mode failover, LUN flags = %#x, " 11393 "ha_mode = #%x", lun->flags, ctl_softc->ha_mode); 11394 } 11395 } 11396 ctl_pause_rtr = 0; 11397 mtx_unlock(&ctl_softc->ctl_lock); 11398 } 11399 11400 static int 11401 ctl_scsiio_precheck(struct ctl_softc *ctl_softc, struct ctl_scsiio *ctsio) 11402 { 11403 struct ctl_lun *lun; 11404 const struct ctl_cmd_entry *entry; 11405 uint32_t initidx, targ_lun; 11406 int retval; 11407 11408 retval = 0; 11409 11410 lun = NULL; 11411 11412 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11413 if ((targ_lun < CTL_MAX_LUNS) 11414 && (ctl_softc->ctl_luns[targ_lun] != NULL)) { 11415 lun = ctl_softc->ctl_luns[targ_lun]; 11416 /* 11417 * If the LUN is invalid, pretend that it doesn't exist. 11418 * It will go away as soon as all pending I/O has been 11419 * completed. 11420 */ 11421 if (lun->flags & CTL_LUN_DISABLED) { 11422 lun = NULL; 11423 } else { 11424 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11425 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11426 lun->be_lun; 11427 if (lun->be_lun->lun_type == T_PROCESSOR) { 11428 ctsio->io_hdr.flags |= CTL_FLAG_CONTROL_DEV; 11429 } 11430 11431 /* 11432 * Every I/O goes into the OOA queue for a 11433 * particular LUN, and stays there until completion. 11434 */ 11435 mtx_lock(&lun->lun_lock); 11436 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11437 ooa_links); 11438 } 11439 } else { 11440 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11441 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11442 } 11443 11444 /* Get command entry and return error if it is unsuppotyed. */ 11445 entry = ctl_validate_command(ctsio); 11446 if (entry == NULL) { 11447 if (lun) 11448 mtx_unlock(&lun->lun_lock); 11449 return (retval); 11450 } 11451 11452 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11453 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11454 11455 /* 11456 * Check to see whether we can send this command to LUNs that don't 11457 * exist. This should pretty much only be the case for inquiry 11458 * and request sense. Further checks, below, really require having 11459 * a LUN, so we can't really check the command anymore. Just put 11460 * it on the rtr queue. 11461 */ 11462 if (lun == NULL) { 11463 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) { 11464 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11465 ctl_enqueue_rtr((union ctl_io *)ctsio); 11466 return (retval); 11467 } 11468 11469 ctl_set_unsupported_lun(ctsio); 11470 ctl_done((union ctl_io *)ctsio); 11471 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11472 return (retval); 11473 } else { 11474 /* 11475 * Make sure we support this particular command on this LUN. 11476 * e.g., we don't support writes to the control LUN. 11477 */ 11478 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11479 mtx_unlock(&lun->lun_lock); 11480 ctl_set_invalid_opcode(ctsio); 11481 ctl_done((union ctl_io *)ctsio); 11482 return (retval); 11483 } 11484 } 11485 11486 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11487 11488 #ifdef CTL_WITH_CA 11489 /* 11490 * If we've got a request sense, it'll clear the contingent 11491 * allegiance condition. Otherwise, if we have a CA condition for 11492 * this initiator, clear it, because it sent down a command other 11493 * than request sense. 11494 */ 11495 if ((ctsio->cdb[0] != REQUEST_SENSE) 11496 && (ctl_is_set(lun->have_ca, initidx))) 11497 ctl_clear_mask(lun->have_ca, initidx); 11498 #endif 11499 11500 /* 11501 * If the command has this flag set, it handles its own unit 11502 * attention reporting, we shouldn't do anything. Otherwise we 11503 * check for any pending unit attentions, and send them back to the 11504 * initiator. We only do this when a command initially comes in, 11505 * not when we pull it off the blocked queue. 11506 * 11507 * According to SAM-3, section 5.3.2, the order that things get 11508 * presented back to the host is basically unit attentions caused 11509 * by some sort of reset event, busy status, reservation conflicts 11510 * or task set full, and finally any other status. 11511 * 11512 * One issue here is that some of the unit attentions we report 11513 * don't fall into the "reset" category (e.g. "reported luns data 11514 * has changed"). So reporting it here, before the reservation 11515 * check, may be technically wrong. I guess the only thing to do 11516 * would be to check for and report the reset events here, and then 11517 * check for the other unit attention types after we check for a 11518 * reservation conflict. 11519 * 11520 * XXX KDM need to fix this 11521 */ 11522 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11523 ctl_ua_type ua_type; 11524 11525 ua_type = lun->pending_ua[initidx]; 11526 if (ua_type != CTL_UA_NONE) { 11527 scsi_sense_data_type sense_format; 11528 11529 if (lun != NULL) 11530 sense_format = (lun->flags & 11531 CTL_LUN_SENSE_DESC) ? SSD_TYPE_DESC : 11532 SSD_TYPE_FIXED; 11533 else 11534 sense_format = SSD_TYPE_FIXED; 11535 11536 ua_type = ctl_build_ua(ua_type, &ctsio->sense_data, 11537 sense_format); 11538 if (ua_type != CTL_UA_NONE) { 11539 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11540 ctsio->io_hdr.status = CTL_SCSI_ERROR | 11541 CTL_AUTOSENSE; 11542 ctsio->sense_len = SSD_FULL_SIZE; 11543 lun->pending_ua[initidx] &= ~ua_type; 11544 mtx_unlock(&lun->lun_lock); 11545 ctl_done((union ctl_io *)ctsio); 11546 return (retval); 11547 } 11548 } 11549 } 11550 11551 11552 if (ctl_scsiio_lun_check(ctl_softc, lun, entry, ctsio) != 0) { 11553 mtx_unlock(&lun->lun_lock); 11554 ctl_done((union ctl_io *)ctsio); 11555 return (retval); 11556 } 11557 11558 /* 11559 * XXX CHD this is where we want to send IO to other side if 11560 * this LUN is secondary on this SC. We will need to make a copy 11561 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11562 * the copy we send as FROM_OTHER. 11563 * We also need to stuff the address of the original IO so we can 11564 * find it easily. Something similar will need be done on the other 11565 * side so when we are done we can find the copy. 11566 */ 11567 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11568 union ctl_ha_msg msg_info; 11569 int isc_retval; 11570 11571 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11572 11573 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11574 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11575 #if 0 11576 printf("1. ctsio %p\n", ctsio); 11577 #endif 11578 msg_info.hdr.serializing_sc = NULL; 11579 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11580 msg_info.scsi.tag_num = ctsio->tag_num; 11581 msg_info.scsi.tag_type = ctsio->tag_type; 11582 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11583 11584 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11585 11586 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11587 (void *)&msg_info, sizeof(msg_info), 0)) > 11588 CTL_HA_STATUS_SUCCESS) { 11589 printf("CTL:precheck, ctl_ha_msg_send returned %d\n", 11590 isc_retval); 11591 printf("CTL:opcode is %x\n", ctsio->cdb[0]); 11592 } else { 11593 #if 0 11594 printf("CTL:Precheck sent msg, opcode is %x\n",opcode); 11595 #endif 11596 } 11597 11598 /* 11599 * XXX KDM this I/O is off the incoming queue, but hasn't 11600 * been inserted on any other queue. We may need to come 11601 * up with a holding queue while we wait for serialization 11602 * so that we have an idea of what we're waiting for from 11603 * the other side. 11604 */ 11605 mtx_unlock(&lun->lun_lock); 11606 return (retval); 11607 } 11608 11609 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11610 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11611 ctl_ooaq, ooa_links))) { 11612 case CTL_ACTION_BLOCK: 11613 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11614 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11615 blocked_links); 11616 mtx_unlock(&lun->lun_lock); 11617 return (retval); 11618 case CTL_ACTION_PASS: 11619 case CTL_ACTION_SKIP: 11620 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11621 mtx_unlock(&lun->lun_lock); 11622 ctl_enqueue_rtr((union ctl_io *)ctsio); 11623 break; 11624 case CTL_ACTION_OVERLAP: 11625 mtx_unlock(&lun->lun_lock); 11626 ctl_set_overlapped_cmd(ctsio); 11627 ctl_done((union ctl_io *)ctsio); 11628 break; 11629 case CTL_ACTION_OVERLAP_TAG: 11630 mtx_unlock(&lun->lun_lock); 11631 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11632 ctl_done((union ctl_io *)ctsio); 11633 break; 11634 case CTL_ACTION_ERROR: 11635 default: 11636 mtx_unlock(&lun->lun_lock); 11637 ctl_set_internal_failure(ctsio, 11638 /*sks_valid*/ 0, 11639 /*retry_count*/ 0); 11640 ctl_done((union ctl_io *)ctsio); 11641 break; 11642 } 11643 return (retval); 11644 } 11645 11646 const struct ctl_cmd_entry * 11647 ctl_get_cmd_entry(struct ctl_scsiio *ctsio) 11648 { 11649 const struct ctl_cmd_entry *entry; 11650 int service_action; 11651 11652 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11653 if (entry->flags & CTL_CMD_FLAG_SA5) { 11654 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11655 entry = &((const struct ctl_cmd_entry *) 11656 entry->execute)[service_action]; 11657 } 11658 return (entry); 11659 } 11660 11661 const struct ctl_cmd_entry * 11662 ctl_validate_command(struct ctl_scsiio *ctsio) 11663 { 11664 const struct ctl_cmd_entry *entry; 11665 int i; 11666 uint8_t diff; 11667 11668 entry = ctl_get_cmd_entry(ctsio); 11669 if (entry->execute == NULL) { 11670 ctl_set_invalid_opcode(ctsio); 11671 ctl_done((union ctl_io *)ctsio); 11672 return (NULL); 11673 } 11674 KASSERT(entry->length > 0, 11675 ("Not defined length for command 0x%02x/0x%02x", 11676 ctsio->cdb[0], ctsio->cdb[1])); 11677 for (i = 1; i < entry->length; i++) { 11678 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11679 if (diff == 0) 11680 continue; 11681 ctl_set_invalid_field(ctsio, 11682 /*sks_valid*/ 1, 11683 /*command*/ 1, 11684 /*field*/ i, 11685 /*bit_valid*/ 1, 11686 /*bit*/ fls(diff) - 1); 11687 ctl_done((union ctl_io *)ctsio); 11688 return (NULL); 11689 } 11690 return (entry); 11691 } 11692 11693 static int 11694 ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11695 { 11696 11697 switch (lun_type) { 11698 case T_PROCESSOR: 11699 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) && 11700 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11701 return (0); 11702 break; 11703 case T_DIRECT: 11704 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) && 11705 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11706 return (0); 11707 break; 11708 default: 11709 return (0); 11710 } 11711 return (1); 11712 } 11713 11714 static int 11715 ctl_scsiio(struct ctl_scsiio *ctsio) 11716 { 11717 int retval; 11718 const struct ctl_cmd_entry *entry; 11719 11720 retval = CTL_RETVAL_COMPLETE; 11721 11722 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11723 11724 entry = ctl_get_cmd_entry(ctsio); 11725 11726 /* 11727 * If this I/O has been aborted, just send it straight to 11728 * ctl_done() without executing it. 11729 */ 11730 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11731 ctl_done((union ctl_io *)ctsio); 11732 goto bailout; 11733 } 11734 11735 /* 11736 * All the checks should have been handled by ctl_scsiio_precheck(). 11737 * We should be clear now to just execute the I/O. 11738 */ 11739 retval = entry->execute(ctsio); 11740 11741 bailout: 11742 return (retval); 11743 } 11744 11745 /* 11746 * Since we only implement one target right now, a bus reset simply resets 11747 * our single target. 11748 */ 11749 static int 11750 ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io) 11751 { 11752 return(ctl_target_reset(ctl_softc, io, CTL_UA_BUS_RESET)); 11753 } 11754 11755 static int 11756 ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 11757 ctl_ua_type ua_type) 11758 { 11759 struct ctl_lun *lun; 11760 int retval; 11761 11762 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11763 union ctl_ha_msg msg_info; 11764 11765 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11766 msg_info.hdr.nexus = io->io_hdr.nexus; 11767 if (ua_type==CTL_UA_TARG_RESET) 11768 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11769 else 11770 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11771 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11772 msg_info.hdr.original_sc = NULL; 11773 msg_info.hdr.serializing_sc = NULL; 11774 if (CTL_HA_STATUS_SUCCESS != ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11775 (void *)&msg_info, sizeof(msg_info), 0)) { 11776 } 11777 } 11778 retval = 0; 11779 11780 mtx_lock(&ctl_softc->ctl_lock); 11781 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) 11782 retval += ctl_lun_reset(lun, io, ua_type); 11783 mtx_unlock(&ctl_softc->ctl_lock); 11784 11785 return (retval); 11786 } 11787 11788 /* 11789 * The LUN should always be set. The I/O is optional, and is used to 11790 * distinguish between I/Os sent by this initiator, and by other 11791 * initiators. We set unit attention for initiators other than this one. 11792 * SAM-3 is vague on this point. It does say that a unit attention should 11793 * be established for other initiators when a LUN is reset (see section 11794 * 5.7.3), but it doesn't specifically say that the unit attention should 11795 * be established for this particular initiator when a LUN is reset. Here 11796 * is the relevant text, from SAM-3 rev 8: 11797 * 11798 * 5.7.2 When a SCSI initiator port aborts its own tasks 11799 * 11800 * When a SCSI initiator port causes its own task(s) to be aborted, no 11801 * notification that the task(s) have been aborted shall be returned to 11802 * the SCSI initiator port other than the completion response for the 11803 * command or task management function action that caused the task(s) to 11804 * be aborted and notification(s) associated with related effects of the 11805 * action (e.g., a reset unit attention condition). 11806 * 11807 * XXX KDM for now, we're setting unit attention for all initiators. 11808 */ 11809 static int 11810 ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11811 { 11812 union ctl_io *xio; 11813 #if 0 11814 uint32_t initindex; 11815 #endif 11816 int i; 11817 11818 mtx_lock(&lun->lun_lock); 11819 /* 11820 * Run through the OOA queue and abort each I/O. 11821 */ 11822 #if 0 11823 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 11824 #endif 11825 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11826 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11827 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11828 } 11829 11830 /* 11831 * This version sets unit attention for every 11832 */ 11833 #if 0 11834 initindex = ctl_get_initindex(&io->io_hdr.nexus); 11835 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11836 if (initindex == i) 11837 continue; 11838 lun->pending_ua[i] |= ua_type; 11839 } 11840 #endif 11841 11842 /* 11843 * A reset (any kind, really) clears reservations established with 11844 * RESERVE/RELEASE. It does not clear reservations established 11845 * with PERSISTENT RESERVE OUT, but we don't support that at the 11846 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11847 * reservations made with the RESERVE/RELEASE commands, because 11848 * those commands are obsolete in SPC-3. 11849 */ 11850 lun->flags &= ~CTL_LUN_RESERVED; 11851 11852 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11853 #ifdef CTL_WITH_CA 11854 ctl_clear_mask(lun->have_ca, i); 11855 #endif 11856 lun->pending_ua[i] |= ua_type; 11857 } 11858 mtx_unlock(&lun->lun_lock); 11859 11860 return (0); 11861 } 11862 11863 static int 11864 ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11865 int other_sc) 11866 { 11867 union ctl_io *xio; 11868 int found; 11869 11870 mtx_assert(&lun->lun_lock, MA_OWNED); 11871 11872 /* 11873 * Run through the OOA queue and attempt to find the given I/O. 11874 * The target port, initiator ID, tag type and tag number have to 11875 * match the values that we got from the initiator. If we have an 11876 * untagged command to abort, simply abort the first untagged command 11877 * we come to. We only allow one untagged command at a time of course. 11878 */ 11879 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11880 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11881 11882 if ((targ_port == UINT32_MAX || 11883 targ_port == xio->io_hdr.nexus.targ_port) && 11884 (init_id == UINT32_MAX || 11885 init_id == xio->io_hdr.nexus.initid.id)) { 11886 if (targ_port != xio->io_hdr.nexus.targ_port || 11887 init_id != xio->io_hdr.nexus.initid.id) 11888 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 11889 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11890 found = 1; 11891 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11892 union ctl_ha_msg msg_info; 11893 11894 msg_info.hdr.nexus = xio->io_hdr.nexus; 11895 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 11896 msg_info.task.tag_num = xio->scsiio.tag_num; 11897 msg_info.task.tag_type = xio->scsiio.tag_type; 11898 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11899 msg_info.hdr.original_sc = NULL; 11900 msg_info.hdr.serializing_sc = NULL; 11901 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11902 (void *)&msg_info, sizeof(msg_info), 0); 11903 } 11904 } 11905 } 11906 return (found); 11907 } 11908 11909 static int 11910 ctl_abort_task_set(union ctl_io *io) 11911 { 11912 struct ctl_softc *softc = control_softc; 11913 struct ctl_lun *lun; 11914 uint32_t targ_lun; 11915 11916 /* 11917 * Look up the LUN. 11918 */ 11919 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11920 mtx_lock(&softc->ctl_lock); 11921 if ((targ_lun < CTL_MAX_LUNS) && (softc->ctl_luns[targ_lun] != NULL)) 11922 lun = softc->ctl_luns[targ_lun]; 11923 else { 11924 mtx_unlock(&softc->ctl_lock); 11925 return (1); 11926 } 11927 11928 mtx_lock(&lun->lun_lock); 11929 mtx_unlock(&softc->ctl_lock); 11930 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 11931 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11932 io->io_hdr.nexus.initid.id, 11933 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11934 } else { /* CTL_TASK_CLEAR_TASK_SET */ 11935 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 11936 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11937 } 11938 mtx_unlock(&lun->lun_lock); 11939 return (0); 11940 } 11941 11942 static int 11943 ctl_i_t_nexus_reset(union ctl_io *io) 11944 { 11945 struct ctl_softc *softc = control_softc; 11946 struct ctl_lun *lun; 11947 uint32_t initindex; 11948 11949 initindex = ctl_get_initindex(&io->io_hdr.nexus); 11950 mtx_lock(&softc->ctl_lock); 11951 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11952 mtx_lock(&lun->lun_lock); 11953 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11954 io->io_hdr.nexus.initid.id, 11955 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11956 #ifdef CTL_WITH_CA 11957 ctl_clear_mask(lun->have_ca, initindex); 11958 #endif 11959 lun->pending_ua[initindex] |= CTL_UA_I_T_NEXUS_LOSS; 11960 mtx_unlock(&lun->lun_lock); 11961 } 11962 mtx_unlock(&softc->ctl_lock); 11963 return (0); 11964 } 11965 11966 static int 11967 ctl_abort_task(union ctl_io *io) 11968 { 11969 union ctl_io *xio; 11970 struct ctl_lun *lun; 11971 struct ctl_softc *ctl_softc; 11972 #if 0 11973 struct sbuf sb; 11974 char printbuf[128]; 11975 #endif 11976 int found; 11977 uint32_t targ_lun; 11978 11979 ctl_softc = control_softc; 11980 found = 0; 11981 11982 /* 11983 * Look up the LUN. 11984 */ 11985 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11986 mtx_lock(&ctl_softc->ctl_lock); 11987 if ((targ_lun < CTL_MAX_LUNS) 11988 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 11989 lun = ctl_softc->ctl_luns[targ_lun]; 11990 else { 11991 mtx_unlock(&ctl_softc->ctl_lock); 11992 return (1); 11993 } 11994 11995 #if 0 11996 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 11997 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 11998 #endif 11999 12000 mtx_lock(&lun->lun_lock); 12001 mtx_unlock(&ctl_softc->ctl_lock); 12002 /* 12003 * Run through the OOA queue and attempt to find the given I/O. 12004 * The target port, initiator ID, tag type and tag number have to 12005 * match the values that we got from the initiator. If we have an 12006 * untagged command to abort, simply abort the first untagged command 12007 * we come to. We only allow one untagged command at a time of course. 12008 */ 12009 #if 0 12010 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12011 #endif 12012 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12013 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12014 #if 0 12015 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12016 12017 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12018 lun->lun, xio->scsiio.tag_num, 12019 xio->scsiio.tag_type, 12020 (xio->io_hdr.blocked_links.tqe_prev 12021 == NULL) ? "" : " BLOCKED", 12022 (xio->io_hdr.flags & 12023 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12024 (xio->io_hdr.flags & 12025 CTL_FLAG_ABORT) ? " ABORT" : "", 12026 (xio->io_hdr.flags & 12027 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12028 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12029 sbuf_finish(&sb); 12030 printf("%s\n", sbuf_data(&sb)); 12031 #endif 12032 12033 if ((xio->io_hdr.nexus.targ_port == io->io_hdr.nexus.targ_port) 12034 && (xio->io_hdr.nexus.initid.id == 12035 io->io_hdr.nexus.initid.id)) { 12036 /* 12037 * If the abort says that the task is untagged, the 12038 * task in the queue must be untagged. Otherwise, 12039 * we just check to see whether the tag numbers 12040 * match. This is because the QLogic firmware 12041 * doesn't pass back the tag type in an abort 12042 * request. 12043 */ 12044 #if 0 12045 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12046 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12047 || (xio->scsiio.tag_num == io->taskio.tag_num)) { 12048 #endif 12049 /* 12050 * XXX KDM we've got problems with FC, because it 12051 * doesn't send down a tag type with aborts. So we 12052 * can only really go by the tag number... 12053 * This may cause problems with parallel SCSI. 12054 * Need to figure that out!! 12055 */ 12056 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12057 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12058 found = 1; 12059 if ((io->io_hdr.flags & 12060 CTL_FLAG_FROM_OTHER_SC) == 0 && 12061 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12062 union ctl_ha_msg msg_info; 12063 12064 io->io_hdr.flags |= 12065 CTL_FLAG_SENT_2OTHER_SC; 12066 msg_info.hdr.nexus = io->io_hdr.nexus; 12067 msg_info.task.task_action = 12068 CTL_TASK_ABORT_TASK; 12069 msg_info.task.tag_num = 12070 io->taskio.tag_num; 12071 msg_info.task.tag_type = 12072 io->taskio.tag_type; 12073 msg_info.hdr.msg_type = 12074 CTL_MSG_MANAGE_TASKS; 12075 msg_info.hdr.original_sc = NULL; 12076 msg_info.hdr.serializing_sc = NULL; 12077 #if 0 12078 printf("Sent Abort to other side\n"); 12079 #endif 12080 if (CTL_HA_STATUS_SUCCESS != 12081 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12082 (void *)&msg_info, 12083 sizeof(msg_info), 0)) { 12084 } 12085 } 12086 #if 0 12087 printf("ctl_abort_task: found I/O to abort\n"); 12088 #endif 12089 break; 12090 } 12091 } 12092 } 12093 mtx_unlock(&lun->lun_lock); 12094 12095 if (found == 0) { 12096 /* 12097 * This isn't really an error. It's entirely possible for 12098 * the abort and command completion to cross on the wire. 12099 * This is more of an informative/diagnostic error. 12100 */ 12101 #if 0 12102 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12103 "%d:%d:%d:%d tag %d type %d\n", 12104 io->io_hdr.nexus.initid.id, 12105 io->io_hdr.nexus.targ_port, 12106 io->io_hdr.nexus.targ_target.id, 12107 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12108 io->taskio.tag_type); 12109 #endif 12110 } 12111 return (0); 12112 } 12113 12114 static void 12115 ctl_run_task(union ctl_io *io) 12116 { 12117 struct ctl_softc *ctl_softc = control_softc; 12118 int retval = 1; 12119 const char *task_desc; 12120 12121 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12122 12123 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12124 ("ctl_run_task: Unextected io_type %d\n", 12125 io->io_hdr.io_type)); 12126 12127 task_desc = ctl_scsi_task_string(&io->taskio); 12128 if (task_desc != NULL) { 12129 #ifdef NEEDTOPORT 12130 csevent_log(CSC_CTL | CSC_SHELF_SW | 12131 CTL_TASK_REPORT, 12132 csevent_LogType_Trace, 12133 csevent_Severity_Information, 12134 csevent_AlertLevel_Green, 12135 csevent_FRU_Firmware, 12136 csevent_FRU_Unknown, 12137 "CTL: received task: %s",task_desc); 12138 #endif 12139 } else { 12140 #ifdef NEEDTOPORT 12141 csevent_log(CSC_CTL | CSC_SHELF_SW | 12142 CTL_TASK_REPORT, 12143 csevent_LogType_Trace, 12144 csevent_Severity_Information, 12145 csevent_AlertLevel_Green, 12146 csevent_FRU_Firmware, 12147 csevent_FRU_Unknown, 12148 "CTL: received unknown task " 12149 "type: %d (%#x)", 12150 io->taskio.task_action, 12151 io->taskio.task_action); 12152 #endif 12153 } 12154 switch (io->taskio.task_action) { 12155 case CTL_TASK_ABORT_TASK: 12156 retval = ctl_abort_task(io); 12157 break; 12158 case CTL_TASK_ABORT_TASK_SET: 12159 case CTL_TASK_CLEAR_TASK_SET: 12160 retval = ctl_abort_task_set(io); 12161 break; 12162 case CTL_TASK_CLEAR_ACA: 12163 break; 12164 case CTL_TASK_I_T_NEXUS_RESET: 12165 retval = ctl_i_t_nexus_reset(io); 12166 break; 12167 case CTL_TASK_LUN_RESET: { 12168 struct ctl_lun *lun; 12169 uint32_t targ_lun; 12170 12171 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12172 mtx_lock(&ctl_softc->ctl_lock); 12173 if ((targ_lun < CTL_MAX_LUNS) 12174 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12175 lun = ctl_softc->ctl_luns[targ_lun]; 12176 else { 12177 mtx_unlock(&ctl_softc->ctl_lock); 12178 retval = 1; 12179 break; 12180 } 12181 12182 if (!(io->io_hdr.flags & 12183 CTL_FLAG_FROM_OTHER_SC)) { 12184 union ctl_ha_msg msg_info; 12185 12186 io->io_hdr.flags |= 12187 CTL_FLAG_SENT_2OTHER_SC; 12188 msg_info.hdr.msg_type = 12189 CTL_MSG_MANAGE_TASKS; 12190 msg_info.hdr.nexus = io->io_hdr.nexus; 12191 msg_info.task.task_action = 12192 CTL_TASK_LUN_RESET; 12193 msg_info.hdr.original_sc = NULL; 12194 msg_info.hdr.serializing_sc = NULL; 12195 if (CTL_HA_STATUS_SUCCESS != 12196 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12197 (void *)&msg_info, 12198 sizeof(msg_info), 0)) { 12199 } 12200 } 12201 12202 retval = ctl_lun_reset(lun, io, 12203 CTL_UA_LUN_RESET); 12204 mtx_unlock(&ctl_softc->ctl_lock); 12205 break; 12206 } 12207 case CTL_TASK_TARGET_RESET: 12208 retval = ctl_target_reset(ctl_softc, io, CTL_UA_TARG_RESET); 12209 break; 12210 case CTL_TASK_BUS_RESET: 12211 retval = ctl_bus_reset(ctl_softc, io); 12212 break; 12213 case CTL_TASK_PORT_LOGIN: 12214 break; 12215 case CTL_TASK_PORT_LOGOUT: 12216 break; 12217 default: 12218 printf("ctl_run_task: got unknown task management event %d\n", 12219 io->taskio.task_action); 12220 break; 12221 } 12222 if (retval == 0) 12223 io->io_hdr.status = CTL_SUCCESS; 12224 else 12225 io->io_hdr.status = CTL_ERROR; 12226 ctl_done(io); 12227 } 12228 12229 /* 12230 * For HA operation. Handle commands that come in from the other 12231 * controller. 12232 */ 12233 static void 12234 ctl_handle_isc(union ctl_io *io) 12235 { 12236 int free_io; 12237 struct ctl_lun *lun; 12238 struct ctl_softc *ctl_softc; 12239 uint32_t targ_lun; 12240 12241 ctl_softc = control_softc; 12242 12243 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12244 lun = ctl_softc->ctl_luns[targ_lun]; 12245 12246 switch (io->io_hdr.msg_type) { 12247 case CTL_MSG_SERIALIZE: 12248 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12249 break; 12250 case CTL_MSG_R2R: { 12251 const struct ctl_cmd_entry *entry; 12252 12253 /* 12254 * This is only used in SER_ONLY mode. 12255 */ 12256 free_io = 0; 12257 entry = ctl_get_cmd_entry(&io->scsiio); 12258 mtx_lock(&lun->lun_lock); 12259 if (ctl_scsiio_lun_check(ctl_softc, lun, 12260 entry, (struct ctl_scsiio *)io) != 0) { 12261 mtx_unlock(&lun->lun_lock); 12262 ctl_done(io); 12263 break; 12264 } 12265 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12266 mtx_unlock(&lun->lun_lock); 12267 ctl_enqueue_rtr(io); 12268 break; 12269 } 12270 case CTL_MSG_FINISH_IO: 12271 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 12272 free_io = 0; 12273 ctl_done(io); 12274 } else { 12275 free_io = 1; 12276 mtx_lock(&lun->lun_lock); 12277 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12278 ooa_links); 12279 ctl_check_blocked(lun); 12280 mtx_unlock(&lun->lun_lock); 12281 } 12282 break; 12283 case CTL_MSG_PERS_ACTION: 12284 ctl_hndl_per_res_out_on_other_sc( 12285 (union ctl_ha_msg *)&io->presio.pr_msg); 12286 free_io = 1; 12287 break; 12288 case CTL_MSG_BAD_JUJU: 12289 free_io = 0; 12290 ctl_done(io); 12291 break; 12292 case CTL_MSG_DATAMOVE: 12293 /* Only used in XFER mode */ 12294 free_io = 0; 12295 ctl_datamove_remote(io); 12296 break; 12297 case CTL_MSG_DATAMOVE_DONE: 12298 /* Only used in XFER mode */ 12299 free_io = 0; 12300 io->scsiio.be_move_done(io); 12301 break; 12302 default: 12303 free_io = 1; 12304 printf("%s: Invalid message type %d\n", 12305 __func__, io->io_hdr.msg_type); 12306 break; 12307 } 12308 if (free_io) 12309 ctl_free_io(io); 12310 12311 } 12312 12313 12314 /* 12315 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12316 * there is no match. 12317 */ 12318 static ctl_lun_error_pattern 12319 ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12320 { 12321 const struct ctl_cmd_entry *entry; 12322 ctl_lun_error_pattern filtered_pattern, pattern; 12323 12324 pattern = desc->error_pattern; 12325 12326 /* 12327 * XXX KDM we need more data passed into this function to match a 12328 * custom pattern, and we actually need to implement custom pattern 12329 * matching. 12330 */ 12331 if (pattern & CTL_LUN_PAT_CMD) 12332 return (CTL_LUN_PAT_CMD); 12333 12334 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12335 return (CTL_LUN_PAT_ANY); 12336 12337 entry = ctl_get_cmd_entry(ctsio); 12338 12339 filtered_pattern = entry->pattern & pattern; 12340 12341 /* 12342 * If the user requested specific flags in the pattern (e.g. 12343 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12344 * flags. 12345 * 12346 * If the user did not specify any flags, it doesn't matter whether 12347 * or not the command supports the flags. 12348 */ 12349 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12350 (pattern & ~CTL_LUN_PAT_MASK)) 12351 return (CTL_LUN_PAT_NONE); 12352 12353 /* 12354 * If the user asked for a range check, see if the requested LBA 12355 * range overlaps with this command's LBA range. 12356 */ 12357 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12358 uint64_t lba1; 12359 uint32_t len1; 12360 ctl_action action; 12361 int retval; 12362 12363 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12364 if (retval != 0) 12365 return (CTL_LUN_PAT_NONE); 12366 12367 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12368 desc->lba_range.len); 12369 /* 12370 * A "pass" means that the LBA ranges don't overlap, so 12371 * this doesn't match the user's range criteria. 12372 */ 12373 if (action == CTL_ACTION_PASS) 12374 return (CTL_LUN_PAT_NONE); 12375 } 12376 12377 return (filtered_pattern); 12378 } 12379 12380 static void 12381 ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12382 { 12383 struct ctl_error_desc *desc, *desc2; 12384 12385 mtx_assert(&lun->lun_lock, MA_OWNED); 12386 12387 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12388 ctl_lun_error_pattern pattern; 12389 /* 12390 * Check to see whether this particular command matches 12391 * the pattern in the descriptor. 12392 */ 12393 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12394 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12395 continue; 12396 12397 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12398 case CTL_LUN_INJ_ABORTED: 12399 ctl_set_aborted(&io->scsiio); 12400 break; 12401 case CTL_LUN_INJ_MEDIUM_ERR: 12402 ctl_set_medium_error(&io->scsiio); 12403 break; 12404 case CTL_LUN_INJ_UA: 12405 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12406 * OCCURRED */ 12407 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12408 break; 12409 case CTL_LUN_INJ_CUSTOM: 12410 /* 12411 * We're assuming the user knows what he is doing. 12412 * Just copy the sense information without doing 12413 * checks. 12414 */ 12415 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12416 ctl_min(sizeof(desc->custom_sense), 12417 sizeof(io->scsiio.sense_data))); 12418 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12419 io->scsiio.sense_len = SSD_FULL_SIZE; 12420 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12421 break; 12422 case CTL_LUN_INJ_NONE: 12423 default: 12424 /* 12425 * If this is an error injection type we don't know 12426 * about, clear the continuous flag (if it is set) 12427 * so it will get deleted below. 12428 */ 12429 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12430 break; 12431 } 12432 /* 12433 * By default, each error injection action is a one-shot 12434 */ 12435 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12436 continue; 12437 12438 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12439 12440 free(desc, M_CTL); 12441 } 12442 } 12443 12444 #ifdef CTL_IO_DELAY 12445 static void 12446 ctl_datamove_timer_wakeup(void *arg) 12447 { 12448 union ctl_io *io; 12449 12450 io = (union ctl_io *)arg; 12451 12452 ctl_datamove(io); 12453 } 12454 #endif /* CTL_IO_DELAY */ 12455 12456 void 12457 ctl_datamove(union ctl_io *io) 12458 { 12459 void (*fe_datamove)(union ctl_io *io); 12460 12461 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12462 12463 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12464 12465 #ifdef CTL_TIME_IO 12466 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12467 char str[256]; 12468 char path_str[64]; 12469 struct sbuf sb; 12470 12471 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12472 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12473 12474 sbuf_cat(&sb, path_str); 12475 switch (io->io_hdr.io_type) { 12476 case CTL_IO_SCSI: 12477 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12478 sbuf_printf(&sb, "\n"); 12479 sbuf_cat(&sb, path_str); 12480 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12481 io->scsiio.tag_num, io->scsiio.tag_type); 12482 break; 12483 case CTL_IO_TASK: 12484 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12485 "Tag Type: %d\n", io->taskio.task_action, 12486 io->taskio.tag_num, io->taskio.tag_type); 12487 break; 12488 default: 12489 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12490 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12491 break; 12492 } 12493 sbuf_cat(&sb, path_str); 12494 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12495 (intmax_t)time_uptime - io->io_hdr.start_time); 12496 sbuf_finish(&sb); 12497 printf("%s", sbuf_data(&sb)); 12498 } 12499 #endif /* CTL_TIME_IO */ 12500 12501 #ifdef CTL_IO_DELAY 12502 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12503 struct ctl_lun *lun; 12504 12505 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12506 12507 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12508 } else { 12509 struct ctl_lun *lun; 12510 12511 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12512 if ((lun != NULL) 12513 && (lun->delay_info.datamove_delay > 0)) { 12514 struct callout *callout; 12515 12516 callout = (struct callout *)&io->io_hdr.timer_bytes; 12517 callout_init(callout, /*mpsafe*/ 1); 12518 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12519 callout_reset(callout, 12520 lun->delay_info.datamove_delay * hz, 12521 ctl_datamove_timer_wakeup, io); 12522 if (lun->delay_info.datamove_type == 12523 CTL_DELAY_TYPE_ONESHOT) 12524 lun->delay_info.datamove_delay = 0; 12525 return; 12526 } 12527 } 12528 #endif 12529 12530 /* 12531 * This command has been aborted. Set the port status, so we fail 12532 * the data move. 12533 */ 12534 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12535 printf("ctl_datamove: tag 0x%04x on (%ju:%d:%ju:%d) aborted\n", 12536 io->scsiio.tag_num,(uintmax_t)io->io_hdr.nexus.initid.id, 12537 io->io_hdr.nexus.targ_port, 12538 (uintmax_t)io->io_hdr.nexus.targ_target.id, 12539 io->io_hdr.nexus.targ_lun); 12540 io->io_hdr.port_status = 31337; 12541 /* 12542 * Note that the backend, in this case, will get the 12543 * callback in its context. In other cases it may get 12544 * called in the frontend's interrupt thread context. 12545 */ 12546 io->scsiio.be_move_done(io); 12547 return; 12548 } 12549 12550 /* 12551 * If we're in XFER mode and this I/O is from the other shelf 12552 * controller, we need to send the DMA to the other side to 12553 * actually transfer the data to/from the host. In serialize only 12554 * mode the transfer happens below CTL and ctl_datamove() is only 12555 * called on the machine that originally received the I/O. 12556 */ 12557 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12558 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12559 union ctl_ha_msg msg; 12560 uint32_t sg_entries_sent; 12561 int do_sg_copy; 12562 int i; 12563 12564 memset(&msg, 0, sizeof(msg)); 12565 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12566 msg.hdr.original_sc = io->io_hdr.original_sc; 12567 msg.hdr.serializing_sc = io; 12568 msg.hdr.nexus = io->io_hdr.nexus; 12569 msg.dt.flags = io->io_hdr.flags; 12570 /* 12571 * We convert everything into a S/G list here. We can't 12572 * pass by reference, only by value between controllers. 12573 * So we can't pass a pointer to the S/G list, only as many 12574 * S/G entries as we can fit in here. If it's possible for 12575 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12576 * then we need to break this up into multiple transfers. 12577 */ 12578 if (io->scsiio.kern_sg_entries == 0) { 12579 msg.dt.kern_sg_entries = 1; 12580 /* 12581 * If this is in cached memory, flush the cache 12582 * before we send the DMA request to the other 12583 * controller. We want to do this in either the 12584 * read or the write case. The read case is 12585 * straightforward. In the write case, we want to 12586 * make sure nothing is in the local cache that 12587 * could overwrite the DMAed data. 12588 */ 12589 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12590 /* 12591 * XXX KDM use bus_dmamap_sync() here. 12592 */ 12593 } 12594 12595 /* 12596 * Convert to a physical address if this is a 12597 * virtual address. 12598 */ 12599 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12600 msg.dt.sg_list[0].addr = 12601 io->scsiio.kern_data_ptr; 12602 } else { 12603 /* 12604 * XXX KDM use busdma here! 12605 */ 12606 #if 0 12607 msg.dt.sg_list[0].addr = (void *) 12608 vtophys(io->scsiio.kern_data_ptr); 12609 #endif 12610 } 12611 12612 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12613 do_sg_copy = 0; 12614 } else { 12615 struct ctl_sg_entry *sgl; 12616 12617 do_sg_copy = 1; 12618 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12619 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 12620 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12621 /* 12622 * XXX KDM use bus_dmamap_sync() here. 12623 */ 12624 } 12625 } 12626 12627 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12628 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12629 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12630 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12631 msg.dt.sg_sequence = 0; 12632 12633 /* 12634 * Loop until we've sent all of the S/G entries. On the 12635 * other end, we'll recompose these S/G entries into one 12636 * contiguous list before passing it to the 12637 */ 12638 for (sg_entries_sent = 0; sg_entries_sent < 12639 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12640 msg.dt.cur_sg_entries = ctl_min((sizeof(msg.dt.sg_list)/ 12641 sizeof(msg.dt.sg_list[0])), 12642 msg.dt.kern_sg_entries - sg_entries_sent); 12643 12644 if (do_sg_copy != 0) { 12645 struct ctl_sg_entry *sgl; 12646 int j; 12647 12648 sgl = (struct ctl_sg_entry *) 12649 io->scsiio.kern_data_ptr; 12650 /* 12651 * If this is in cached memory, flush the cache 12652 * before we send the DMA request to the other 12653 * controller. We want to do this in either 12654 * the * read or the write case. The read 12655 * case is straightforward. In the write 12656 * case, we want to make sure nothing is 12657 * in the local cache that could overwrite 12658 * the DMAed data. 12659 */ 12660 12661 for (i = sg_entries_sent, j = 0; 12662 i < msg.dt.cur_sg_entries; i++, j++) { 12663 if ((io->io_hdr.flags & 12664 CTL_FLAG_NO_DATASYNC) == 0) { 12665 /* 12666 * XXX KDM use bus_dmamap_sync() 12667 */ 12668 } 12669 if ((io->io_hdr.flags & 12670 CTL_FLAG_BUS_ADDR) == 0) { 12671 /* 12672 * XXX KDM use busdma. 12673 */ 12674 #if 0 12675 msg.dt.sg_list[j].addr =(void *) 12676 vtophys(sgl[i].addr); 12677 #endif 12678 } else { 12679 msg.dt.sg_list[j].addr = 12680 sgl[i].addr; 12681 } 12682 msg.dt.sg_list[j].len = sgl[i].len; 12683 } 12684 } 12685 12686 sg_entries_sent += msg.dt.cur_sg_entries; 12687 if (sg_entries_sent >= msg.dt.kern_sg_entries) 12688 msg.dt.sg_last = 1; 12689 else 12690 msg.dt.sg_last = 0; 12691 12692 /* 12693 * XXX KDM drop and reacquire the lock here? 12694 */ 12695 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12696 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 12697 /* 12698 * XXX do something here. 12699 */ 12700 } 12701 12702 msg.dt.sent_sg_entries = sg_entries_sent; 12703 } 12704 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12705 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) 12706 ctl_failover_io(io, /*have_lock*/ 0); 12707 12708 } else { 12709 12710 /* 12711 * Lookup the fe_datamove() function for this particular 12712 * front end. 12713 */ 12714 fe_datamove = 12715 control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12716 12717 fe_datamove(io); 12718 } 12719 } 12720 12721 static void 12722 ctl_send_datamove_done(union ctl_io *io, int have_lock) 12723 { 12724 union ctl_ha_msg msg; 12725 int isc_status; 12726 12727 memset(&msg, 0, sizeof(msg)); 12728 12729 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12730 msg.hdr.original_sc = io; 12731 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12732 msg.hdr.nexus = io->io_hdr.nexus; 12733 msg.hdr.status = io->io_hdr.status; 12734 msg.scsi.tag_num = io->scsiio.tag_num; 12735 msg.scsi.tag_type = io->scsiio.tag_type; 12736 msg.scsi.scsi_status = io->scsiio.scsi_status; 12737 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12738 sizeof(io->scsiio.sense_data)); 12739 msg.scsi.sense_len = io->scsiio.sense_len; 12740 msg.scsi.sense_residual = io->scsiio.sense_residual; 12741 msg.scsi.fetd_status = io->io_hdr.port_status; 12742 msg.scsi.residual = io->scsiio.residual; 12743 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12744 12745 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12746 ctl_failover_io(io, /*have_lock*/ have_lock); 12747 return; 12748 } 12749 12750 isc_status = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0); 12751 if (isc_status > CTL_HA_STATUS_SUCCESS) { 12752 /* XXX do something if this fails */ 12753 } 12754 12755 } 12756 12757 /* 12758 * The DMA to the remote side is done, now we need to tell the other side 12759 * we're done so it can continue with its data movement. 12760 */ 12761 static void 12762 ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12763 { 12764 union ctl_io *io; 12765 12766 io = rq->context; 12767 12768 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12769 printf("%s: ISC DMA write failed with error %d", __func__, 12770 rq->ret); 12771 ctl_set_internal_failure(&io->scsiio, 12772 /*sks_valid*/ 1, 12773 /*retry_count*/ rq->ret); 12774 } 12775 12776 ctl_dt_req_free(rq); 12777 12778 /* 12779 * In this case, we had to malloc the memory locally. Free it. 12780 */ 12781 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12782 int i; 12783 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12784 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12785 } 12786 /* 12787 * The data is in local and remote memory, so now we need to send 12788 * status (good or back) back to the other side. 12789 */ 12790 ctl_send_datamove_done(io, /*have_lock*/ 0); 12791 } 12792 12793 /* 12794 * We've moved the data from the host/controller into local memory. Now we 12795 * need to push it over to the remote controller's memory. 12796 */ 12797 static int 12798 ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12799 { 12800 int retval; 12801 12802 retval = 0; 12803 12804 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12805 ctl_datamove_remote_write_cb); 12806 12807 return (retval); 12808 } 12809 12810 static void 12811 ctl_datamove_remote_write(union ctl_io *io) 12812 { 12813 int retval; 12814 void (*fe_datamove)(union ctl_io *io); 12815 12816 /* 12817 * - Get the data from the host/HBA into local memory. 12818 * - DMA memory from the local controller to the remote controller. 12819 * - Send status back to the remote controller. 12820 */ 12821 12822 retval = ctl_datamove_remote_sgl_setup(io); 12823 if (retval != 0) 12824 return; 12825 12826 /* Switch the pointer over so the FETD knows what to do */ 12827 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12828 12829 /* 12830 * Use a custom move done callback, since we need to send completion 12831 * back to the other controller, not to the backend on this side. 12832 */ 12833 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12834 12835 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12836 12837 fe_datamove(io); 12838 12839 return; 12840 12841 } 12842 12843 static int 12844 ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12845 { 12846 #if 0 12847 char str[256]; 12848 char path_str[64]; 12849 struct sbuf sb; 12850 #endif 12851 12852 /* 12853 * In this case, we had to malloc the memory locally. Free it. 12854 */ 12855 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12856 int i; 12857 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12858 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12859 } 12860 12861 #if 0 12862 scsi_path_string(io, path_str, sizeof(path_str)); 12863 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12864 sbuf_cat(&sb, path_str); 12865 scsi_command_string(&io->scsiio, NULL, &sb); 12866 sbuf_printf(&sb, "\n"); 12867 sbuf_cat(&sb, path_str); 12868 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12869 io->scsiio.tag_num, io->scsiio.tag_type); 12870 sbuf_cat(&sb, path_str); 12871 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12872 io->io_hdr.flags, io->io_hdr.status); 12873 sbuf_finish(&sb); 12874 printk("%s", sbuf_data(&sb)); 12875 #endif 12876 12877 12878 /* 12879 * The read is done, now we need to send status (good or bad) back 12880 * to the other side. 12881 */ 12882 ctl_send_datamove_done(io, /*have_lock*/ 0); 12883 12884 return (0); 12885 } 12886 12887 static void 12888 ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12889 { 12890 union ctl_io *io; 12891 void (*fe_datamove)(union ctl_io *io); 12892 12893 io = rq->context; 12894 12895 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12896 printf("%s: ISC DMA read failed with error %d", __func__, 12897 rq->ret); 12898 ctl_set_internal_failure(&io->scsiio, 12899 /*sks_valid*/ 1, 12900 /*retry_count*/ rq->ret); 12901 } 12902 12903 ctl_dt_req_free(rq); 12904 12905 /* Switch the pointer over so the FETD knows what to do */ 12906 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12907 12908 /* 12909 * Use a custom move done callback, since we need to send completion 12910 * back to the other controller, not to the backend on this side. 12911 */ 12912 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12913 12914 /* XXX KDM add checks like the ones in ctl_datamove? */ 12915 12916 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12917 12918 fe_datamove(io); 12919 } 12920 12921 static int 12922 ctl_datamove_remote_sgl_setup(union ctl_io *io) 12923 { 12924 struct ctl_sg_entry *local_sglist, *remote_sglist; 12925 struct ctl_sg_entry *local_dma_sglist, *remote_dma_sglist; 12926 struct ctl_softc *softc; 12927 int retval; 12928 int i; 12929 12930 retval = 0; 12931 softc = control_softc; 12932 12933 local_sglist = io->io_hdr.local_sglist; 12934 local_dma_sglist = io->io_hdr.local_dma_sglist; 12935 remote_sglist = io->io_hdr.remote_sglist; 12936 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 12937 12938 if (io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) { 12939 for (i = 0; i < io->scsiio.kern_sg_entries; i++) { 12940 local_sglist[i].len = remote_sglist[i].len; 12941 12942 /* 12943 * XXX Detect the situation where the RS-level I/O 12944 * redirector on the other side has already read the 12945 * data off of the AOR RS on this side, and 12946 * transferred it to remote (mirror) memory on the 12947 * other side. Since we already have the data in 12948 * memory here, we just need to use it. 12949 * 12950 * XXX KDM this can probably be removed once we 12951 * get the cache device code in and take the 12952 * current AOR implementation out. 12953 */ 12954 #ifdef NEEDTOPORT 12955 if ((remote_sglist[i].addr >= 12956 (void *)vtophys(softc->mirr->addr)) 12957 && (remote_sglist[i].addr < 12958 ((void *)vtophys(softc->mirr->addr) + 12959 CacheMirrorOffset))) { 12960 local_sglist[i].addr = remote_sglist[i].addr - 12961 CacheMirrorOffset; 12962 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 12963 CTL_FLAG_DATA_IN) 12964 io->io_hdr.flags |= CTL_FLAG_REDIR_DONE; 12965 } else { 12966 local_sglist[i].addr = remote_sglist[i].addr + 12967 CacheMirrorOffset; 12968 } 12969 #endif 12970 #if 0 12971 printf("%s: local %p, remote %p, len %d\n", 12972 __func__, local_sglist[i].addr, 12973 remote_sglist[i].addr, local_sglist[i].len); 12974 #endif 12975 } 12976 } else { 12977 uint32_t len_to_go; 12978 12979 /* 12980 * In this case, we don't have automatically allocated 12981 * memory for this I/O on this controller. This typically 12982 * happens with internal CTL I/O -- e.g. inquiry, mode 12983 * sense, etc. Anything coming from RAIDCore will have 12984 * a mirror area available. 12985 */ 12986 len_to_go = io->scsiio.kern_data_len; 12987 12988 /* 12989 * Clear the no datasync flag, we have to use malloced 12990 * buffers. 12991 */ 12992 io->io_hdr.flags &= ~CTL_FLAG_NO_DATASYNC; 12993 12994 /* 12995 * The difficult thing here is that the size of the various 12996 * S/G segments may be different than the size from the 12997 * remote controller. That'll make it harder when DMAing 12998 * the data back to the other side. 12999 */ 13000 for (i = 0; (i < sizeof(io->io_hdr.remote_sglist) / 13001 sizeof(io->io_hdr.remote_sglist[0])) && 13002 (len_to_go > 0); i++) { 13003 local_sglist[i].len = ctl_min(len_to_go, 131072); 13004 CTL_SIZE_8B(local_dma_sglist[i].len, 13005 local_sglist[i].len); 13006 local_sglist[i].addr = 13007 malloc(local_dma_sglist[i].len, M_CTL,M_WAITOK); 13008 13009 local_dma_sglist[i].addr = local_sglist[i].addr; 13010 13011 if (local_sglist[i].addr == NULL) { 13012 int j; 13013 13014 printf("malloc failed for %zd bytes!", 13015 local_dma_sglist[i].len); 13016 for (j = 0; j < i; j++) { 13017 free(local_sglist[j].addr, M_CTL); 13018 } 13019 ctl_set_internal_failure(&io->scsiio, 13020 /*sks_valid*/ 1, 13021 /*retry_count*/ 4857); 13022 retval = 1; 13023 goto bailout_error; 13024 13025 } 13026 /* XXX KDM do we need a sync here? */ 13027 13028 len_to_go -= local_sglist[i].len; 13029 } 13030 /* 13031 * Reset the number of S/G entries accordingly. The 13032 * original number of S/G entries is available in 13033 * rem_sg_entries. 13034 */ 13035 io->scsiio.kern_sg_entries = i; 13036 13037 #if 0 13038 printf("%s: kern_sg_entries = %d\n", __func__, 13039 io->scsiio.kern_sg_entries); 13040 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13041 printf("%s: sg[%d] = %p, %d (DMA: %d)\n", __func__, i, 13042 local_sglist[i].addr, local_sglist[i].len, 13043 local_dma_sglist[i].len); 13044 #endif 13045 } 13046 13047 13048 return (retval); 13049 13050 bailout_error: 13051 13052 ctl_send_datamove_done(io, /*have_lock*/ 0); 13053 13054 return (retval); 13055 } 13056 13057 static int 13058 ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 13059 ctl_ha_dt_cb callback) 13060 { 13061 struct ctl_ha_dt_req *rq; 13062 struct ctl_sg_entry *remote_sglist, *local_sglist; 13063 struct ctl_sg_entry *remote_dma_sglist, *local_dma_sglist; 13064 uint32_t local_used, remote_used, total_used; 13065 int retval; 13066 int i, j; 13067 13068 retval = 0; 13069 13070 rq = ctl_dt_req_alloc(); 13071 13072 /* 13073 * If we failed to allocate the request, and if the DMA didn't fail 13074 * anyway, set busy status. This is just a resource allocation 13075 * failure. 13076 */ 13077 if ((rq == NULL) 13078 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)) 13079 ctl_set_busy(&io->scsiio); 13080 13081 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 13082 13083 if (rq != NULL) 13084 ctl_dt_req_free(rq); 13085 13086 /* 13087 * The data move failed. We need to return status back 13088 * to the other controller. No point in trying to DMA 13089 * data to the remote controller. 13090 */ 13091 13092 ctl_send_datamove_done(io, /*have_lock*/ 0); 13093 13094 retval = 1; 13095 13096 goto bailout; 13097 } 13098 13099 local_sglist = io->io_hdr.local_sglist; 13100 local_dma_sglist = io->io_hdr.local_dma_sglist; 13101 remote_sglist = io->io_hdr.remote_sglist; 13102 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13103 local_used = 0; 13104 remote_used = 0; 13105 total_used = 0; 13106 13107 if (io->io_hdr.flags & CTL_FLAG_REDIR_DONE) { 13108 rq->ret = CTL_HA_STATUS_SUCCESS; 13109 rq->context = io; 13110 callback(rq); 13111 goto bailout; 13112 } 13113 13114 /* 13115 * Pull/push the data over the wire from/to the other controller. 13116 * This takes into account the possibility that the local and 13117 * remote sglists may not be identical in terms of the size of 13118 * the elements and the number of elements. 13119 * 13120 * One fundamental assumption here is that the length allocated for 13121 * both the local and remote sglists is identical. Otherwise, we've 13122 * essentially got a coding error of some sort. 13123 */ 13124 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 13125 int isc_ret; 13126 uint32_t cur_len, dma_length; 13127 uint8_t *tmp_ptr; 13128 13129 rq->id = CTL_HA_DATA_CTL; 13130 rq->command = command; 13131 rq->context = io; 13132 13133 /* 13134 * Both pointers should be aligned. But it is possible 13135 * that the allocation length is not. They should both 13136 * also have enough slack left over at the end, though, 13137 * to round up to the next 8 byte boundary. 13138 */ 13139 cur_len = ctl_min(local_sglist[i].len - local_used, 13140 remote_sglist[j].len - remote_used); 13141 13142 /* 13143 * In this case, we have a size issue and need to decrease 13144 * the size, except in the case where we actually have less 13145 * than 8 bytes left. In that case, we need to increase 13146 * the DMA length to get the last bit. 13147 */ 13148 if ((cur_len & 0x7) != 0) { 13149 if (cur_len > 0x7) { 13150 cur_len = cur_len - (cur_len & 0x7); 13151 dma_length = cur_len; 13152 } else { 13153 CTL_SIZE_8B(dma_length, cur_len); 13154 } 13155 13156 } else 13157 dma_length = cur_len; 13158 13159 /* 13160 * If we had to allocate memory for this I/O, instead of using 13161 * the non-cached mirror memory, we'll need to flush the cache 13162 * before trying to DMA to the other controller. 13163 * 13164 * We could end up doing this multiple times for the same 13165 * segment if we have a larger local segment than remote 13166 * segment. That shouldn't be an issue. 13167 */ 13168 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 13169 /* 13170 * XXX KDM use bus_dmamap_sync() here. 13171 */ 13172 } 13173 13174 rq->size = dma_length; 13175 13176 tmp_ptr = (uint8_t *)local_sglist[i].addr; 13177 tmp_ptr += local_used; 13178 13179 /* Use physical addresses when talking to ISC hardware */ 13180 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 13181 /* XXX KDM use busdma */ 13182 #if 0 13183 rq->local = vtophys(tmp_ptr); 13184 #endif 13185 } else 13186 rq->local = tmp_ptr; 13187 13188 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 13189 tmp_ptr += remote_used; 13190 rq->remote = tmp_ptr; 13191 13192 rq->callback = NULL; 13193 13194 local_used += cur_len; 13195 if (local_used >= local_sglist[i].len) { 13196 i++; 13197 local_used = 0; 13198 } 13199 13200 remote_used += cur_len; 13201 if (remote_used >= remote_sglist[j].len) { 13202 j++; 13203 remote_used = 0; 13204 } 13205 total_used += cur_len; 13206 13207 if (total_used >= io->scsiio.kern_data_len) 13208 rq->callback = callback; 13209 13210 if ((rq->size & 0x7) != 0) { 13211 printf("%s: warning: size %d is not on 8b boundary\n", 13212 __func__, rq->size); 13213 } 13214 if (((uintptr_t)rq->local & 0x7) != 0) { 13215 printf("%s: warning: local %p not on 8b boundary\n", 13216 __func__, rq->local); 13217 } 13218 if (((uintptr_t)rq->remote & 0x7) != 0) { 13219 printf("%s: warning: remote %p not on 8b boundary\n", 13220 __func__, rq->local); 13221 } 13222 #if 0 13223 printf("%s: %s: local %#x remote %#x size %d\n", __func__, 13224 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13225 rq->local, rq->remote, rq->size); 13226 #endif 13227 13228 isc_ret = ctl_dt_single(rq); 13229 if (isc_ret == CTL_HA_STATUS_WAIT) 13230 continue; 13231 13232 if (isc_ret == CTL_HA_STATUS_DISCONNECT) { 13233 rq->ret = CTL_HA_STATUS_SUCCESS; 13234 } else { 13235 rq->ret = isc_ret; 13236 } 13237 callback(rq); 13238 goto bailout; 13239 } 13240 13241 bailout: 13242 return (retval); 13243 13244 } 13245 13246 static void 13247 ctl_datamove_remote_read(union ctl_io *io) 13248 { 13249 int retval; 13250 int i; 13251 13252 /* 13253 * This will send an error to the other controller in the case of a 13254 * failure. 13255 */ 13256 retval = ctl_datamove_remote_sgl_setup(io); 13257 if (retval != 0) 13258 return; 13259 13260 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13261 ctl_datamove_remote_read_cb); 13262 if ((retval != 0) 13263 && ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0)) { 13264 /* 13265 * Make sure we free memory if there was an error.. The 13266 * ctl_datamove_remote_xfer() function will send the 13267 * datamove done message, or call the callback with an 13268 * error if there is a problem. 13269 */ 13270 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13271 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13272 } 13273 13274 return; 13275 } 13276 13277 /* 13278 * Process a datamove request from the other controller. This is used for 13279 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13280 * first. Once that is complete, the data gets DMAed into the remote 13281 * controller's memory. For reads, we DMA from the remote controller's 13282 * memory into our memory first, and then move it out to the FETD. 13283 */ 13284 static void 13285 ctl_datamove_remote(union ctl_io *io) 13286 { 13287 struct ctl_softc *softc; 13288 13289 softc = control_softc; 13290 13291 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 13292 13293 /* 13294 * Note that we look for an aborted I/O here, but don't do some of 13295 * the other checks that ctl_datamove() normally does. 13296 * We don't need to run the datamove delay code, since that should 13297 * have been done if need be on the other controller. 13298 */ 13299 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13300 printf("%s: tag 0x%04x on (%d:%d:%d:%d) aborted\n", __func__, 13301 io->scsiio.tag_num, io->io_hdr.nexus.initid.id, 13302 io->io_hdr.nexus.targ_port, 13303 io->io_hdr.nexus.targ_target.id, 13304 io->io_hdr.nexus.targ_lun); 13305 io->io_hdr.port_status = 31338; 13306 ctl_send_datamove_done(io, /*have_lock*/ 0); 13307 return; 13308 } 13309 13310 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) { 13311 ctl_datamove_remote_write(io); 13312 } else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN){ 13313 ctl_datamove_remote_read(io); 13314 } else { 13315 union ctl_ha_msg msg; 13316 struct scsi_sense_data *sense; 13317 uint8_t sks[3]; 13318 int retry_count; 13319 13320 memset(&msg, 0, sizeof(msg)); 13321 13322 msg.hdr.msg_type = CTL_MSG_BAD_JUJU; 13323 msg.hdr.status = CTL_SCSI_ERROR; 13324 msg.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 13325 13326 retry_count = 4243; 13327 13328 sense = &msg.scsi.sense_data; 13329 sks[0] = SSD_SCS_VALID; 13330 sks[1] = (retry_count >> 8) & 0xff; 13331 sks[2] = retry_count & 0xff; 13332 13333 /* "Internal target failure" */ 13334 scsi_set_sense_data(sense, 13335 /*sense_format*/ SSD_TYPE_NONE, 13336 /*current_error*/ 1, 13337 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 13338 /*asc*/ 0x44, 13339 /*ascq*/ 0x00, 13340 /*type*/ SSD_ELEM_SKS, 13341 /*size*/ sizeof(sks), 13342 /*data*/ sks, 13343 SSD_ELEM_NONE); 13344 13345 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13346 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13347 ctl_failover_io(io, /*have_lock*/ 1); 13348 return; 13349 } 13350 13351 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0) > 13352 CTL_HA_STATUS_SUCCESS) { 13353 /* XXX KDM what to do if this fails? */ 13354 } 13355 return; 13356 } 13357 13358 } 13359 13360 static int 13361 ctl_process_done(union ctl_io *io) 13362 { 13363 struct ctl_lun *lun; 13364 struct ctl_softc *ctl_softc; 13365 void (*fe_done)(union ctl_io *io); 13366 uint32_t targ_port = ctl_port_idx(io->io_hdr.nexus.targ_port); 13367 13368 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13369 13370 fe_done = 13371 control_softc->ctl_ports[targ_port]->fe_done; 13372 13373 #ifdef CTL_TIME_IO 13374 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13375 char str[256]; 13376 char path_str[64]; 13377 struct sbuf sb; 13378 13379 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13380 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13381 13382 sbuf_cat(&sb, path_str); 13383 switch (io->io_hdr.io_type) { 13384 case CTL_IO_SCSI: 13385 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13386 sbuf_printf(&sb, "\n"); 13387 sbuf_cat(&sb, path_str); 13388 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13389 io->scsiio.tag_num, io->scsiio.tag_type); 13390 break; 13391 case CTL_IO_TASK: 13392 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13393 "Tag Type: %d\n", io->taskio.task_action, 13394 io->taskio.tag_num, io->taskio.tag_type); 13395 break; 13396 default: 13397 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13398 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13399 break; 13400 } 13401 sbuf_cat(&sb, path_str); 13402 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13403 (intmax_t)time_uptime - io->io_hdr.start_time); 13404 sbuf_finish(&sb); 13405 printf("%s", sbuf_data(&sb)); 13406 } 13407 #endif /* CTL_TIME_IO */ 13408 13409 switch (io->io_hdr.io_type) { 13410 case CTL_IO_SCSI: 13411 break; 13412 case CTL_IO_TASK: 13413 if (bootverbose || verbose > 0) 13414 ctl_io_error_print(io, NULL); 13415 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 13416 ctl_free_io(io); 13417 else 13418 fe_done(io); 13419 return (CTL_RETVAL_COMPLETE); 13420 break; 13421 default: 13422 printf("ctl_process_done: invalid io type %d\n", 13423 io->io_hdr.io_type); 13424 panic("ctl_process_done: invalid io type %d\n", 13425 io->io_hdr.io_type); 13426 break; /* NOTREACHED */ 13427 } 13428 13429 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13430 if (lun == NULL) { 13431 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13432 io->io_hdr.nexus.targ_mapped_lun)); 13433 fe_done(io); 13434 goto bailout; 13435 } 13436 ctl_softc = lun->ctl_softc; 13437 13438 mtx_lock(&lun->lun_lock); 13439 13440 /* 13441 * Check to see if we have any errors to inject here. We only 13442 * inject errors for commands that don't already have errors set. 13443 */ 13444 if ((STAILQ_FIRST(&lun->error_list) != NULL) 13445 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) 13446 ctl_inject_error(lun, io); 13447 13448 /* 13449 * XXX KDM how do we treat commands that aren't completed 13450 * successfully? 13451 * 13452 * XXX KDM should we also track I/O latency? 13453 */ 13454 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13455 io->io_hdr.io_type == CTL_IO_SCSI) { 13456 #ifdef CTL_TIME_IO 13457 struct bintime cur_bt; 13458 #endif 13459 int type; 13460 13461 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13462 CTL_FLAG_DATA_IN) 13463 type = CTL_STATS_READ; 13464 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13465 CTL_FLAG_DATA_OUT) 13466 type = CTL_STATS_WRITE; 13467 else 13468 type = CTL_STATS_NO_IO; 13469 13470 lun->stats.ports[targ_port].bytes[type] += 13471 io->scsiio.kern_total_len; 13472 lun->stats.ports[targ_port].operations[type]++; 13473 #ifdef CTL_TIME_IO 13474 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13475 &io->io_hdr.dma_bt); 13476 lun->stats.ports[targ_port].num_dmas[type] += 13477 io->io_hdr.num_dmas; 13478 getbintime(&cur_bt); 13479 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13480 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13481 #endif 13482 } 13483 13484 /* 13485 * Remove this from the OOA queue. 13486 */ 13487 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13488 13489 /* 13490 * Run through the blocked queue on this LUN and see if anything 13491 * has become unblocked, now that this transaction is done. 13492 */ 13493 ctl_check_blocked(lun); 13494 13495 /* 13496 * If the LUN has been invalidated, free it if there is nothing 13497 * left on its OOA queue. 13498 */ 13499 if ((lun->flags & CTL_LUN_INVALID) 13500 && TAILQ_EMPTY(&lun->ooa_queue)) { 13501 mtx_unlock(&lun->lun_lock); 13502 mtx_lock(&ctl_softc->ctl_lock); 13503 ctl_free_lun(lun); 13504 mtx_unlock(&ctl_softc->ctl_lock); 13505 } else 13506 mtx_unlock(&lun->lun_lock); 13507 13508 /* 13509 * If this command has been aborted, make sure we set the status 13510 * properly. The FETD is responsible for freeing the I/O and doing 13511 * whatever it needs to do to clean up its state. 13512 */ 13513 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13514 ctl_set_task_aborted(&io->scsiio); 13515 13516 /* 13517 * We print out status for every task management command. For SCSI 13518 * commands, we filter out any unit attention errors; they happen 13519 * on every boot, and would clutter up the log. Note: task 13520 * management commands aren't printed here, they are printed above, 13521 * since they should never even make it down here. 13522 */ 13523 switch (io->io_hdr.io_type) { 13524 case CTL_IO_SCSI: { 13525 int error_code, sense_key, asc, ascq; 13526 13527 sense_key = 0; 13528 13529 if (((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SCSI_ERROR) 13530 && (io->scsiio.scsi_status == SCSI_STATUS_CHECK_COND)) { 13531 /* 13532 * Since this is just for printing, no need to 13533 * show errors here. 13534 */ 13535 scsi_extract_sense_len(&io->scsiio.sense_data, 13536 io->scsiio.sense_len, 13537 &error_code, 13538 &sense_key, 13539 &asc, 13540 &ascq, 13541 /*show_errors*/ 0); 13542 } 13543 13544 if (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 13545 && (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SCSI_ERROR) 13546 || (io->scsiio.scsi_status != SCSI_STATUS_CHECK_COND) 13547 || (sense_key != SSD_KEY_UNIT_ATTENTION))) { 13548 13549 if ((time_uptime - ctl_softc->last_print_jiffies) <= 0){ 13550 ctl_softc->skipped_prints++; 13551 } else { 13552 uint32_t skipped_prints; 13553 13554 skipped_prints = ctl_softc->skipped_prints; 13555 13556 ctl_softc->skipped_prints = 0; 13557 ctl_softc->last_print_jiffies = time_uptime; 13558 13559 if (skipped_prints > 0) { 13560 #ifdef NEEDTOPORT 13561 csevent_log(CSC_CTL | CSC_SHELF_SW | 13562 CTL_ERROR_REPORT, 13563 csevent_LogType_Trace, 13564 csevent_Severity_Information, 13565 csevent_AlertLevel_Green, 13566 csevent_FRU_Firmware, 13567 csevent_FRU_Unknown, 13568 "High CTL error volume, %d prints " 13569 "skipped", skipped_prints); 13570 #endif 13571 } 13572 if (bootverbose || verbose > 0) 13573 ctl_io_error_print(io, NULL); 13574 } 13575 } 13576 break; 13577 } 13578 case CTL_IO_TASK: 13579 if (bootverbose || verbose > 0) 13580 ctl_io_error_print(io, NULL); 13581 break; 13582 default: 13583 break; 13584 } 13585 13586 /* 13587 * Tell the FETD or the other shelf controller we're done with this 13588 * command. Note that only SCSI commands get to this point. Task 13589 * management commands are completed above. 13590 * 13591 * We only send status to the other controller if we're in XFER 13592 * mode. In SER_ONLY mode, the I/O is done on the controller that 13593 * received the I/O (from CTL's perspective), and so the status is 13594 * generated there. 13595 * 13596 * XXX KDM if we hold the lock here, we could cause a deadlock 13597 * if the frontend comes back in in this context to queue 13598 * something. 13599 */ 13600 if ((ctl_softc->ha_mode == CTL_HA_MODE_XFER) 13601 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 13602 union ctl_ha_msg msg; 13603 13604 memset(&msg, 0, sizeof(msg)); 13605 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13606 msg.hdr.original_sc = io->io_hdr.original_sc; 13607 msg.hdr.nexus = io->io_hdr.nexus; 13608 msg.hdr.status = io->io_hdr.status; 13609 msg.scsi.scsi_status = io->scsiio.scsi_status; 13610 msg.scsi.tag_num = io->scsiio.tag_num; 13611 msg.scsi.tag_type = io->scsiio.tag_type; 13612 msg.scsi.sense_len = io->scsiio.sense_len; 13613 msg.scsi.sense_residual = io->scsiio.sense_residual; 13614 msg.scsi.residual = io->scsiio.residual; 13615 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13616 sizeof(io->scsiio.sense_data)); 13617 /* 13618 * We copy this whether or not this is an I/O-related 13619 * command. Otherwise, we'd have to go and check to see 13620 * whether it's a read/write command, and it really isn't 13621 * worth it. 13622 */ 13623 memcpy(&msg.scsi.lbalen, 13624 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 13625 sizeof(msg.scsi.lbalen)); 13626 13627 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13628 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13629 /* XXX do something here */ 13630 } 13631 13632 ctl_free_io(io); 13633 } else 13634 fe_done(io); 13635 13636 bailout: 13637 13638 return (CTL_RETVAL_COMPLETE); 13639 } 13640 13641 #ifdef CTL_WITH_CA 13642 /* 13643 * Front end should call this if it doesn't do autosense. When the request 13644 * sense comes back in from the initiator, we'll dequeue this and send it. 13645 */ 13646 int 13647 ctl_queue_sense(union ctl_io *io) 13648 { 13649 struct ctl_lun *lun; 13650 struct ctl_softc *ctl_softc; 13651 uint32_t initidx, targ_lun; 13652 13653 ctl_softc = control_softc; 13654 13655 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13656 13657 /* 13658 * LUN lookup will likely move to the ctl_work_thread() once we 13659 * have our new queueing infrastructure (that doesn't put things on 13660 * a per-LUN queue initially). That is so that we can handle 13661 * things like an INQUIRY to a LUN that we don't have enabled. We 13662 * can't deal with that right now. 13663 */ 13664 mtx_lock(&ctl_softc->ctl_lock); 13665 13666 /* 13667 * If we don't have a LUN for this, just toss the sense 13668 * information. 13669 */ 13670 targ_lun = io->io_hdr.nexus.targ_lun; 13671 targ_lun = ctl_map_lun(io->io_hdr.nexus.targ_port, targ_lun); 13672 if ((targ_lun < CTL_MAX_LUNS) 13673 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 13674 lun = ctl_softc->ctl_luns[targ_lun]; 13675 else 13676 goto bailout; 13677 13678 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13679 13680 mtx_lock(&lun->lun_lock); 13681 /* 13682 * Already have CA set for this LUN...toss the sense information. 13683 */ 13684 if (ctl_is_set(lun->have_ca, initidx)) { 13685 mtx_unlock(&lun->lun_lock); 13686 goto bailout; 13687 } 13688 13689 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13690 ctl_min(sizeof(lun->pending_sense[initidx]), 13691 sizeof(io->scsiio.sense_data))); 13692 ctl_set_mask(lun->have_ca, initidx); 13693 mtx_unlock(&lun->lun_lock); 13694 13695 bailout: 13696 mtx_unlock(&ctl_softc->ctl_lock); 13697 13698 ctl_free_io(io); 13699 13700 return (CTL_RETVAL_COMPLETE); 13701 } 13702 #endif 13703 13704 /* 13705 * Primary command inlet from frontend ports. All SCSI and task I/O 13706 * requests must go through this function. 13707 */ 13708 int 13709 ctl_queue(union ctl_io *io) 13710 { 13711 struct ctl_softc *ctl_softc; 13712 13713 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13714 13715 ctl_softc = control_softc; 13716 13717 #ifdef CTL_TIME_IO 13718 io->io_hdr.start_time = time_uptime; 13719 getbintime(&io->io_hdr.start_bt); 13720 #endif /* CTL_TIME_IO */ 13721 13722 /* Map FE-specific LUN ID into global one. */ 13723 io->io_hdr.nexus.targ_mapped_lun = 13724 ctl_map_lun(io->io_hdr.nexus.targ_port, io->io_hdr.nexus.targ_lun); 13725 13726 switch (io->io_hdr.io_type) { 13727 case CTL_IO_SCSI: 13728 case CTL_IO_TASK: 13729 ctl_enqueue_incoming(io); 13730 break; 13731 default: 13732 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13733 return (EINVAL); 13734 } 13735 13736 return (CTL_RETVAL_COMPLETE); 13737 } 13738 13739 #ifdef CTL_IO_DELAY 13740 static void 13741 ctl_done_timer_wakeup(void *arg) 13742 { 13743 union ctl_io *io; 13744 13745 io = (union ctl_io *)arg; 13746 ctl_done(io); 13747 } 13748 #endif /* CTL_IO_DELAY */ 13749 13750 void 13751 ctl_done(union ctl_io *io) 13752 { 13753 struct ctl_softc *ctl_softc; 13754 13755 ctl_softc = control_softc; 13756 13757 /* 13758 * Enable this to catch duplicate completion issues. 13759 */ 13760 #if 0 13761 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13762 printf("%s: type %d msg %d cdb %x iptl: " 13763 "%d:%d:%d:%d tag 0x%04x " 13764 "flag %#x status %x\n", 13765 __func__, 13766 io->io_hdr.io_type, 13767 io->io_hdr.msg_type, 13768 io->scsiio.cdb[0], 13769 io->io_hdr.nexus.initid.id, 13770 io->io_hdr.nexus.targ_port, 13771 io->io_hdr.nexus.targ_target.id, 13772 io->io_hdr.nexus.targ_lun, 13773 (io->io_hdr.io_type == 13774 CTL_IO_TASK) ? 13775 io->taskio.tag_num : 13776 io->scsiio.tag_num, 13777 io->io_hdr.flags, 13778 io->io_hdr.status); 13779 } else 13780 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13781 #endif 13782 13783 /* 13784 * This is an internal copy of an I/O, and should not go through 13785 * the normal done processing logic. 13786 */ 13787 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13788 return; 13789 13790 /* 13791 * We need to send a msg to the serializing shelf to finish the IO 13792 * as well. We don't send a finish message to the other shelf if 13793 * this is a task management command. Task management commands 13794 * aren't serialized in the OOA queue, but rather just executed on 13795 * both shelf controllers for commands that originated on that 13796 * controller. 13797 */ 13798 if ((io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC) 13799 && (io->io_hdr.io_type != CTL_IO_TASK)) { 13800 union ctl_ha_msg msg_io; 13801 13802 msg_io.hdr.msg_type = CTL_MSG_FINISH_IO; 13803 msg_io.hdr.serializing_sc = io->io_hdr.serializing_sc; 13804 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_io, 13805 sizeof(msg_io), 0 ) != CTL_HA_STATUS_SUCCESS) { 13806 } 13807 /* continue on to finish IO */ 13808 } 13809 #ifdef CTL_IO_DELAY 13810 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13811 struct ctl_lun *lun; 13812 13813 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13814 13815 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13816 } else { 13817 struct ctl_lun *lun; 13818 13819 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13820 13821 if ((lun != NULL) 13822 && (lun->delay_info.done_delay > 0)) { 13823 struct callout *callout; 13824 13825 callout = (struct callout *)&io->io_hdr.timer_bytes; 13826 callout_init(callout, /*mpsafe*/ 1); 13827 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13828 callout_reset(callout, 13829 lun->delay_info.done_delay * hz, 13830 ctl_done_timer_wakeup, io); 13831 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13832 lun->delay_info.done_delay = 0; 13833 return; 13834 } 13835 } 13836 #endif /* CTL_IO_DELAY */ 13837 13838 ctl_enqueue_done(io); 13839 } 13840 13841 int 13842 ctl_isc(struct ctl_scsiio *ctsio) 13843 { 13844 struct ctl_lun *lun; 13845 int retval; 13846 13847 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13848 13849 CTL_DEBUG_PRINT(("ctl_isc: command: %02x\n", ctsio->cdb[0])); 13850 13851 CTL_DEBUG_PRINT(("ctl_isc: calling data_submit()\n")); 13852 13853 retval = lun->backend->data_submit((union ctl_io *)ctsio); 13854 13855 return (retval); 13856 } 13857 13858 13859 static void 13860 ctl_work_thread(void *arg) 13861 { 13862 struct ctl_thread *thr = (struct ctl_thread *)arg; 13863 struct ctl_softc *softc = thr->ctl_softc; 13864 union ctl_io *io; 13865 int retval; 13866 13867 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13868 13869 for (;;) { 13870 retval = 0; 13871 13872 /* 13873 * We handle the queues in this order: 13874 * - ISC 13875 * - done queue (to free up resources, unblock other commands) 13876 * - RtR queue 13877 * - incoming queue 13878 * 13879 * If those queues are empty, we break out of the loop and 13880 * go to sleep. 13881 */ 13882 mtx_lock(&thr->queue_lock); 13883 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13884 if (io != NULL) { 13885 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13886 mtx_unlock(&thr->queue_lock); 13887 ctl_handle_isc(io); 13888 continue; 13889 } 13890 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13891 if (io != NULL) { 13892 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13893 /* clear any blocked commands, call fe_done */ 13894 mtx_unlock(&thr->queue_lock); 13895 retval = ctl_process_done(io); 13896 continue; 13897 } 13898 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13899 if (io != NULL) { 13900 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13901 mtx_unlock(&thr->queue_lock); 13902 if (io->io_hdr.io_type == CTL_IO_TASK) 13903 ctl_run_task(io); 13904 else 13905 ctl_scsiio_precheck(softc, &io->scsiio); 13906 continue; 13907 } 13908 if (!ctl_pause_rtr) { 13909 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13910 if (io != NULL) { 13911 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13912 mtx_unlock(&thr->queue_lock); 13913 retval = ctl_scsiio(&io->scsiio); 13914 if (retval != CTL_RETVAL_COMPLETE) 13915 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13916 continue; 13917 } 13918 } 13919 13920 /* Sleep until we have something to do. */ 13921 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13922 } 13923 } 13924 13925 static void 13926 ctl_lun_thread(void *arg) 13927 { 13928 struct ctl_softc *softc = (struct ctl_softc *)arg; 13929 struct ctl_be_lun *be_lun; 13930 int retval; 13931 13932 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 13933 13934 for (;;) { 13935 retval = 0; 13936 mtx_lock(&softc->ctl_lock); 13937 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 13938 if (be_lun != NULL) { 13939 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 13940 mtx_unlock(&softc->ctl_lock); 13941 ctl_create_lun(be_lun); 13942 continue; 13943 } 13944 13945 /* Sleep until we have something to do. */ 13946 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 13947 PDROP | PRIBIO, "-", 0); 13948 } 13949 } 13950 13951 static void 13952 ctl_enqueue_incoming(union ctl_io *io) 13953 { 13954 struct ctl_softc *softc = control_softc; 13955 struct ctl_thread *thr; 13956 u_int idx; 13957 13958 idx = (io->io_hdr.nexus.targ_port * 127 + 13959 io->io_hdr.nexus.initid.id) % worker_threads; 13960 thr = &softc->threads[idx]; 13961 mtx_lock(&thr->queue_lock); 13962 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 13963 mtx_unlock(&thr->queue_lock); 13964 wakeup(thr); 13965 } 13966 13967 static void 13968 ctl_enqueue_rtr(union ctl_io *io) 13969 { 13970 struct ctl_softc *softc = control_softc; 13971 struct ctl_thread *thr; 13972 13973 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13974 mtx_lock(&thr->queue_lock); 13975 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 13976 mtx_unlock(&thr->queue_lock); 13977 wakeup(thr); 13978 } 13979 13980 static void 13981 ctl_enqueue_done(union ctl_io *io) 13982 { 13983 struct ctl_softc *softc = control_softc; 13984 struct ctl_thread *thr; 13985 13986 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13987 mtx_lock(&thr->queue_lock); 13988 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 13989 mtx_unlock(&thr->queue_lock); 13990 wakeup(thr); 13991 } 13992 13993 static void 13994 ctl_enqueue_isc(union ctl_io *io) 13995 { 13996 struct ctl_softc *softc = control_softc; 13997 struct ctl_thread *thr; 13998 13999 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14000 mtx_lock(&thr->queue_lock); 14001 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 14002 mtx_unlock(&thr->queue_lock); 14003 wakeup(thr); 14004 } 14005 14006 /* Initialization and failover */ 14007 14008 void 14009 ctl_init_isc_msg(void) 14010 { 14011 printf("CTL: Still calling this thing\n"); 14012 } 14013 14014 /* 14015 * Init component 14016 * Initializes component into configuration defined by bootMode 14017 * (see hasc-sv.c) 14018 * returns hasc_Status: 14019 * OK 14020 * ERROR - fatal error 14021 */ 14022 static ctl_ha_comp_status 14023 ctl_isc_init(struct ctl_ha_component *c) 14024 { 14025 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14026 14027 c->status = ret; 14028 return ret; 14029 } 14030 14031 /* Start component 14032 * Starts component in state requested. If component starts successfully, 14033 * it must set its own state to the requestrd state 14034 * When requested state is HASC_STATE_HA, the component may refine it 14035 * by adding _SLAVE or _MASTER flags. 14036 * Currently allowed state transitions are: 14037 * UNKNOWN->HA - initial startup 14038 * UNKNOWN->SINGLE - initial startup when no parter detected 14039 * HA->SINGLE - failover 14040 * returns ctl_ha_comp_status: 14041 * OK - component successfully started in requested state 14042 * FAILED - could not start the requested state, failover may 14043 * be possible 14044 * ERROR - fatal error detected, no future startup possible 14045 */ 14046 static ctl_ha_comp_status 14047 ctl_isc_start(struct ctl_ha_component *c, ctl_ha_state state) 14048 { 14049 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14050 14051 printf("%s: go\n", __func__); 14052 14053 // UNKNOWN->HA or UNKNOWN->SINGLE (bootstrap) 14054 if (c->state == CTL_HA_STATE_UNKNOWN ) { 14055 ctl_is_single = 0; 14056 if (ctl_ha_msg_create(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 14057 != CTL_HA_STATUS_SUCCESS) { 14058 printf("ctl_isc_start: ctl_ha_msg_create failed.\n"); 14059 ret = CTL_HA_COMP_STATUS_ERROR; 14060 } 14061 } else if (CTL_HA_STATE_IS_HA(c->state) 14062 && CTL_HA_STATE_IS_SINGLE(state)){ 14063 // HA->SINGLE transition 14064 ctl_failover(); 14065 ctl_is_single = 1; 14066 } else { 14067 printf("ctl_isc_start:Invalid state transition %X->%X\n", 14068 c->state, state); 14069 ret = CTL_HA_COMP_STATUS_ERROR; 14070 } 14071 if (CTL_HA_STATE_IS_SINGLE(state)) 14072 ctl_is_single = 1; 14073 14074 c->state = state; 14075 c->status = ret; 14076 return ret; 14077 } 14078 14079 /* 14080 * Quiesce component 14081 * The component must clear any error conditions (set status to OK) and 14082 * prepare itself to another Start call 14083 * returns ctl_ha_comp_status: 14084 * OK 14085 * ERROR 14086 */ 14087 static ctl_ha_comp_status 14088 ctl_isc_quiesce(struct ctl_ha_component *c) 14089 { 14090 int ret = CTL_HA_COMP_STATUS_OK; 14091 14092 ctl_pause_rtr = 1; 14093 c->status = ret; 14094 return ret; 14095 } 14096 14097 struct ctl_ha_component ctl_ha_component_ctlisc = 14098 { 14099 .name = "CTL ISC", 14100 .state = CTL_HA_STATE_UNKNOWN, 14101 .init = ctl_isc_init, 14102 .start = ctl_isc_start, 14103 .quiesce = ctl_isc_quiesce 14104 }; 14105 14106 /* 14107 * vim: ts=8 14108 */ 14109