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), 324 * Block Device Characteristics (0xB1) and Logical Block Provisioning (0xB2) 325 */ 326 #define SCSI_EVPD_NUM_SUPPORTED_PAGES 8 327 328 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_bdc(struct ctl_scsiio *ctsio, int alloc_len); 387 static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 388 static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 389 static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 390 static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint32_t *len); 391 static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2); 392 static ctl_action ctl_check_for_blockage(union ctl_io *pending_io, 393 union ctl_io *ooa_io); 394 static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 395 union ctl_io *starting_io); 396 static int ctl_check_blocked(struct ctl_lun *lun); 397 static int ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, 398 struct ctl_lun *lun, 399 const struct ctl_cmd_entry *entry, 400 struct ctl_scsiio *ctsio); 401 //static int ctl_check_rtr(union ctl_io *pending_io, struct ctl_softc *softc); 402 static void ctl_failover(void); 403 static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 404 struct ctl_scsiio *ctsio); 405 static int ctl_scsiio(struct ctl_scsiio *ctsio); 406 407 static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 408 static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 409 ctl_ua_type ua_type); 410 static int ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, 411 ctl_ua_type ua_type); 412 static int ctl_abort_task(union ctl_io *io); 413 static int ctl_abort_task_set(union ctl_io *io); 414 static int ctl_i_t_nexus_reset(union ctl_io *io); 415 static void ctl_run_task(union ctl_io *io); 416 #ifdef CTL_IO_DELAY 417 static void ctl_datamove_timer_wakeup(void *arg); 418 static void ctl_done_timer_wakeup(void *arg); 419 #endif /* CTL_IO_DELAY */ 420 421 static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 422 static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 423 static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 424 static void ctl_datamove_remote_write(union ctl_io *io); 425 static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 426 static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 427 static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 428 static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 429 ctl_ha_dt_cb callback); 430 static void ctl_datamove_remote_read(union ctl_io *io); 431 static void ctl_datamove_remote(union ctl_io *io); 432 static int ctl_process_done(union ctl_io *io); 433 static void ctl_lun_thread(void *arg); 434 static void ctl_work_thread(void *arg); 435 static void ctl_enqueue_incoming(union ctl_io *io); 436 static void ctl_enqueue_rtr(union ctl_io *io); 437 static void ctl_enqueue_done(union ctl_io *io); 438 static void ctl_enqueue_isc(union ctl_io *io); 439 static const struct ctl_cmd_entry * 440 ctl_get_cmd_entry(struct ctl_scsiio *ctsio); 441 static const struct ctl_cmd_entry * 442 ctl_validate_command(struct ctl_scsiio *ctsio); 443 static int ctl_cmd_applicable(uint8_t lun_type, 444 const struct ctl_cmd_entry *entry); 445 446 /* 447 * Load the serialization table. This isn't very pretty, but is probably 448 * the easiest way to do it. 449 */ 450 #include "ctl_ser_table.c" 451 452 /* 453 * We only need to define open, close and ioctl routines for this driver. 454 */ 455 static struct cdevsw ctl_cdevsw = { 456 .d_version = D_VERSION, 457 .d_flags = 0, 458 .d_open = ctl_open, 459 .d_close = ctl_close, 460 .d_ioctl = ctl_ioctl, 461 .d_name = "ctl", 462 }; 463 464 465 MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 466 MALLOC_DEFINE(M_CTLIO, "ctlio", "Memory used for CTL requests"); 467 468 static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 469 470 static moduledata_t ctl_moduledata = { 471 "ctl", 472 ctl_module_event_handler, 473 NULL 474 }; 475 476 DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 477 MODULE_VERSION(ctl, 1); 478 479 static struct ctl_frontend ioctl_frontend = 480 { 481 .name = "ioctl", 482 }; 483 484 static void 485 ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 486 union ctl_ha_msg *msg_info) 487 { 488 struct ctl_scsiio *ctsio; 489 490 if (msg_info->hdr.original_sc == NULL) { 491 printf("%s: original_sc == NULL!\n", __func__); 492 /* XXX KDM now what? */ 493 return; 494 } 495 496 ctsio = &msg_info->hdr.original_sc->scsiio; 497 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 498 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 499 ctsio->io_hdr.status = msg_info->hdr.status; 500 ctsio->scsi_status = msg_info->scsi.scsi_status; 501 ctsio->sense_len = msg_info->scsi.sense_len; 502 ctsio->sense_residual = msg_info->scsi.sense_residual; 503 ctsio->residual = msg_info->scsi.residual; 504 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 505 sizeof(ctsio->sense_data)); 506 memcpy(&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 507 &msg_info->scsi.lbalen, sizeof(msg_info->scsi.lbalen)); 508 ctl_enqueue_isc((union ctl_io *)ctsio); 509 } 510 511 static void 512 ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 513 union ctl_ha_msg *msg_info) 514 { 515 struct ctl_scsiio *ctsio; 516 517 if (msg_info->hdr.serializing_sc == NULL) { 518 printf("%s: serializing_sc == NULL!\n", __func__); 519 /* XXX KDM now what? */ 520 return; 521 } 522 523 ctsio = &msg_info->hdr.serializing_sc->scsiio; 524 #if 0 525 /* 526 * Attempt to catch the situation where an I/O has 527 * been freed, and we're using it again. 528 */ 529 if (ctsio->io_hdr.io_type == 0xff) { 530 union ctl_io *tmp_io; 531 tmp_io = (union ctl_io *)ctsio; 532 printf("%s: %p use after free!\n", __func__, 533 ctsio); 534 printf("%s: type %d msg %d cdb %x iptl: " 535 "%d:%d:%d:%d tag 0x%04x " 536 "flag %#x status %x\n", 537 __func__, 538 tmp_io->io_hdr.io_type, 539 tmp_io->io_hdr.msg_type, 540 tmp_io->scsiio.cdb[0], 541 tmp_io->io_hdr.nexus.initid.id, 542 tmp_io->io_hdr.nexus.targ_port, 543 tmp_io->io_hdr.nexus.targ_target.id, 544 tmp_io->io_hdr.nexus.targ_lun, 545 (tmp_io->io_hdr.io_type == 546 CTL_IO_TASK) ? 547 tmp_io->taskio.tag_num : 548 tmp_io->scsiio.tag_num, 549 tmp_io->io_hdr.flags, 550 tmp_io->io_hdr.status); 551 } 552 #endif 553 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 554 ctl_enqueue_isc((union ctl_io *)ctsio); 555 } 556 557 /* 558 * ISC (Inter Shelf Communication) event handler. Events from the HA 559 * subsystem come in here. 560 */ 561 static void 562 ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 563 { 564 struct ctl_softc *ctl_softc; 565 union ctl_io *io; 566 struct ctl_prio *presio; 567 ctl_ha_status isc_status; 568 569 ctl_softc = control_softc; 570 io = NULL; 571 572 573 #if 0 574 printf("CTL: Isc Msg event %d\n", event); 575 #endif 576 if (event == CTL_HA_EVT_MSG_RECV) { 577 union ctl_ha_msg msg_info; 578 579 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 580 sizeof(msg_info), /*wait*/ 0); 581 #if 0 582 printf("CTL: msg_type %d\n", msg_info.msg_type); 583 #endif 584 if (isc_status != 0) { 585 printf("Error receiving message, status = %d\n", 586 isc_status); 587 return; 588 } 589 590 switch (msg_info.hdr.msg_type) { 591 case CTL_MSG_SERIALIZE: 592 #if 0 593 printf("Serialize\n"); 594 #endif 595 io = ctl_alloc_io((void *)ctl_softc->othersc_pool); 596 if (io == NULL) { 597 printf("ctl_isc_event_handler: can't allocate " 598 "ctl_io!\n"); 599 /* Bad Juju */ 600 /* Need to set busy and send msg back */ 601 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 602 msg_info.hdr.status = CTL_SCSI_ERROR; 603 msg_info.scsi.scsi_status = SCSI_STATUS_BUSY; 604 msg_info.scsi.sense_len = 0; 605 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 606 sizeof(msg_info), 0) > CTL_HA_STATUS_SUCCESS){ 607 } 608 goto bailout; 609 } 610 ctl_zero_io(io); 611 // populate ctsio from msg_info 612 io->io_hdr.io_type = CTL_IO_SCSI; 613 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 614 io->io_hdr.original_sc = msg_info.hdr.original_sc; 615 #if 0 616 printf("pOrig %x\n", (int)msg_info.original_sc); 617 #endif 618 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 619 CTL_FLAG_IO_ACTIVE; 620 /* 621 * If we're in serialization-only mode, we don't 622 * want to go through full done processing. Thus 623 * the COPY flag. 624 * 625 * XXX KDM add another flag that is more specific. 626 */ 627 if (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY) 628 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 629 io->io_hdr.nexus = msg_info.hdr.nexus; 630 #if 0 631 printf("targ %d, port %d, iid %d, lun %d\n", 632 io->io_hdr.nexus.targ_target.id, 633 io->io_hdr.nexus.targ_port, 634 io->io_hdr.nexus.initid.id, 635 io->io_hdr.nexus.targ_lun); 636 #endif 637 io->scsiio.tag_num = msg_info.scsi.tag_num; 638 io->scsiio.tag_type = msg_info.scsi.tag_type; 639 memcpy(io->scsiio.cdb, msg_info.scsi.cdb, 640 CTL_MAX_CDBLEN); 641 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 642 const struct ctl_cmd_entry *entry; 643 644 entry = ctl_get_cmd_entry(&io->scsiio); 645 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 646 io->io_hdr.flags |= 647 entry->flags & CTL_FLAG_DATA_MASK; 648 } 649 ctl_enqueue_isc(io); 650 break; 651 652 /* Performed on the Originating SC, XFER mode only */ 653 case CTL_MSG_DATAMOVE: { 654 struct ctl_sg_entry *sgl; 655 int i, j; 656 657 io = msg_info.hdr.original_sc; 658 if (io == NULL) { 659 printf("%s: original_sc == NULL!\n", __func__); 660 /* XXX KDM do something here */ 661 break; 662 } 663 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 664 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 665 /* 666 * Keep track of this, we need to send it back over 667 * when the datamove is complete. 668 */ 669 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 670 671 if (msg_info.dt.sg_sequence == 0) { 672 /* 673 * XXX KDM we use the preallocated S/G list 674 * here, but we'll need to change this to 675 * dynamic allocation if we need larger S/G 676 * lists. 677 */ 678 if (msg_info.dt.kern_sg_entries > 679 sizeof(io->io_hdr.remote_sglist) / 680 sizeof(io->io_hdr.remote_sglist[0])) { 681 printf("%s: number of S/G entries " 682 "needed %u > allocated num %zd\n", 683 __func__, 684 msg_info.dt.kern_sg_entries, 685 sizeof(io->io_hdr.remote_sglist)/ 686 sizeof(io->io_hdr.remote_sglist[0])); 687 688 /* 689 * XXX KDM send a message back to 690 * the other side to shut down the 691 * DMA. The error will come back 692 * through via the normal channel. 693 */ 694 break; 695 } 696 sgl = io->io_hdr.remote_sglist; 697 memset(sgl, 0, 698 sizeof(io->io_hdr.remote_sglist)); 699 700 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 701 702 io->scsiio.kern_sg_entries = 703 msg_info.dt.kern_sg_entries; 704 io->scsiio.rem_sg_entries = 705 msg_info.dt.kern_sg_entries; 706 io->scsiio.kern_data_len = 707 msg_info.dt.kern_data_len; 708 io->scsiio.kern_total_len = 709 msg_info.dt.kern_total_len; 710 io->scsiio.kern_data_resid = 711 msg_info.dt.kern_data_resid; 712 io->scsiio.kern_rel_offset = 713 msg_info.dt.kern_rel_offset; 714 /* 715 * Clear out per-DMA flags. 716 */ 717 io->io_hdr.flags &= ~CTL_FLAG_RDMA_MASK; 718 /* 719 * Add per-DMA flags that are set for this 720 * particular DMA request. 721 */ 722 io->io_hdr.flags |= msg_info.dt.flags & 723 CTL_FLAG_RDMA_MASK; 724 } else 725 sgl = (struct ctl_sg_entry *) 726 io->scsiio.kern_data_ptr; 727 728 for (i = msg_info.dt.sent_sg_entries, j = 0; 729 i < (msg_info.dt.sent_sg_entries + 730 msg_info.dt.cur_sg_entries); i++, j++) { 731 sgl[i].addr = msg_info.dt.sg_list[j].addr; 732 sgl[i].len = msg_info.dt.sg_list[j].len; 733 734 #if 0 735 printf("%s: L: %p,%d -> %p,%d j=%d, i=%d\n", 736 __func__, 737 msg_info.dt.sg_list[j].addr, 738 msg_info.dt.sg_list[j].len, 739 sgl[i].addr, sgl[i].len, j, i); 740 #endif 741 } 742 #if 0 743 memcpy(&sgl[msg_info.dt.sent_sg_entries], 744 msg_info.dt.sg_list, 745 sizeof(*sgl) * msg_info.dt.cur_sg_entries); 746 #endif 747 748 /* 749 * If this is the last piece of the I/O, we've got 750 * the full S/G list. Queue processing in the thread. 751 * Otherwise wait for the next piece. 752 */ 753 if (msg_info.dt.sg_last != 0) 754 ctl_enqueue_isc(io); 755 break; 756 } 757 /* Performed on the Serializing (primary) SC, XFER mode only */ 758 case CTL_MSG_DATAMOVE_DONE: { 759 if (msg_info.hdr.serializing_sc == NULL) { 760 printf("%s: serializing_sc == NULL!\n", 761 __func__); 762 /* XXX KDM now what? */ 763 break; 764 } 765 /* 766 * We grab the sense information here in case 767 * there was a failure, so we can return status 768 * back to the initiator. 769 */ 770 io = msg_info.hdr.serializing_sc; 771 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 772 io->io_hdr.status = msg_info.hdr.status; 773 io->scsiio.scsi_status = msg_info.scsi.scsi_status; 774 io->scsiio.sense_len = msg_info.scsi.sense_len; 775 io->scsiio.sense_residual =msg_info.scsi.sense_residual; 776 io->io_hdr.port_status = msg_info.scsi.fetd_status; 777 io->scsiio.residual = msg_info.scsi.residual; 778 memcpy(&io->scsiio.sense_data,&msg_info.scsi.sense_data, 779 sizeof(io->scsiio.sense_data)); 780 ctl_enqueue_isc(io); 781 break; 782 } 783 784 /* Preformed on Originating SC, SER_ONLY mode */ 785 case CTL_MSG_R2R: 786 io = msg_info.hdr.original_sc; 787 if (io == NULL) { 788 printf("%s: Major Bummer\n", __func__); 789 return; 790 } else { 791 #if 0 792 printf("pOrig %x\n",(int) ctsio); 793 #endif 794 } 795 io->io_hdr.msg_type = CTL_MSG_R2R; 796 io->io_hdr.serializing_sc = msg_info.hdr.serializing_sc; 797 ctl_enqueue_isc(io); 798 break; 799 800 /* 801 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 802 * mode. 803 * Performed on the Originating (i.e. secondary) SC in XFER 804 * mode 805 */ 806 case CTL_MSG_FINISH_IO: 807 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) 808 ctl_isc_handler_finish_xfer(ctl_softc, 809 &msg_info); 810 else 811 ctl_isc_handler_finish_ser_only(ctl_softc, 812 &msg_info); 813 break; 814 815 /* Preformed on Originating SC */ 816 case CTL_MSG_BAD_JUJU: 817 io = msg_info.hdr.original_sc; 818 if (io == NULL) { 819 printf("%s: Bad JUJU!, original_sc is NULL!\n", 820 __func__); 821 break; 822 } 823 ctl_copy_sense_data(&msg_info, io); 824 /* 825 * IO should have already been cleaned up on other 826 * SC so clear this flag so we won't send a message 827 * back to finish the IO there. 828 */ 829 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 830 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 831 832 /* io = msg_info.hdr.serializing_sc; */ 833 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 834 ctl_enqueue_isc(io); 835 break; 836 837 /* Handle resets sent from the other side */ 838 case CTL_MSG_MANAGE_TASKS: { 839 struct ctl_taskio *taskio; 840 taskio = (struct ctl_taskio *)ctl_alloc_io( 841 (void *)ctl_softc->othersc_pool); 842 if (taskio == NULL) { 843 printf("ctl_isc_event_handler: can't allocate " 844 "ctl_io!\n"); 845 /* Bad Juju */ 846 /* should I just call the proper reset func 847 here??? */ 848 goto bailout; 849 } 850 ctl_zero_io((union ctl_io *)taskio); 851 taskio->io_hdr.io_type = CTL_IO_TASK; 852 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 853 taskio->io_hdr.nexus = msg_info.hdr.nexus; 854 taskio->task_action = msg_info.task.task_action; 855 taskio->tag_num = msg_info.task.tag_num; 856 taskio->tag_type = msg_info.task.tag_type; 857 #ifdef CTL_TIME_IO 858 taskio->io_hdr.start_time = time_uptime; 859 getbintime(&taskio->io_hdr.start_bt); 860 #if 0 861 cs_prof_gettime(&taskio->io_hdr.start_ticks); 862 #endif 863 #endif /* CTL_TIME_IO */ 864 ctl_run_task((union ctl_io *)taskio); 865 break; 866 } 867 /* Persistent Reserve action which needs attention */ 868 case CTL_MSG_PERS_ACTION: 869 presio = (struct ctl_prio *)ctl_alloc_io( 870 (void *)ctl_softc->othersc_pool); 871 if (presio == NULL) { 872 printf("ctl_isc_event_handler: can't allocate " 873 "ctl_io!\n"); 874 /* Bad Juju */ 875 /* Need to set busy and send msg back */ 876 goto bailout; 877 } 878 ctl_zero_io((union ctl_io *)presio); 879 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 880 presio->pr_msg = msg_info.pr; 881 ctl_enqueue_isc((union ctl_io *)presio); 882 break; 883 case CTL_MSG_SYNC_FE: 884 rcv_sync_msg = 1; 885 break; 886 case CTL_MSG_APS_LOCK: { 887 // It's quicker to execute this then to 888 // queue it. 889 struct ctl_lun *lun; 890 struct ctl_page_index *page_index; 891 struct copan_aps_subpage *current_sp; 892 uint32_t targ_lun; 893 894 targ_lun = msg_info.hdr.nexus.targ_mapped_lun; 895 lun = ctl_softc->ctl_luns[targ_lun]; 896 mtx_lock(&lun->lun_lock); 897 page_index = &lun->mode_pages.index[index_to_aps_page]; 898 current_sp = (struct copan_aps_subpage *) 899 (page_index->page_data + 900 (page_index->page_len * CTL_PAGE_CURRENT)); 901 902 current_sp->lock_active = msg_info.aps.lock_flag; 903 mtx_unlock(&lun->lun_lock); 904 break; 905 } 906 default: 907 printf("How did I get here?\n"); 908 } 909 } else if (event == CTL_HA_EVT_MSG_SENT) { 910 if (param != CTL_HA_STATUS_SUCCESS) { 911 printf("Bad status from ctl_ha_msg_send status %d\n", 912 param); 913 } 914 return; 915 } else if (event == CTL_HA_EVT_DISCONNECT) { 916 printf("CTL: Got a disconnect from Isc\n"); 917 return; 918 } else { 919 printf("ctl_isc_event_handler: Unknown event %d\n", event); 920 return; 921 } 922 923 bailout: 924 return; 925 } 926 927 static void 928 ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 929 { 930 struct scsi_sense_data *sense; 931 932 sense = &dest->scsiio.sense_data; 933 bcopy(&src->scsi.sense_data, sense, sizeof(*sense)); 934 dest->scsiio.scsi_status = src->scsi.scsi_status; 935 dest->scsiio.sense_len = src->scsi.sense_len; 936 dest->io_hdr.status = src->hdr.status; 937 } 938 939 static int 940 ctl_init(void) 941 { 942 struct ctl_softc *softc; 943 struct ctl_io_pool *internal_pool, *emergency_pool, *other_pool; 944 struct ctl_port *port; 945 uint8_t sc_id =0; 946 int i, error, retval; 947 //int isc_retval; 948 949 retval = 0; 950 ctl_pause_rtr = 0; 951 rcv_sync_msg = 0; 952 953 control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 954 M_WAITOK | M_ZERO); 955 softc = control_softc; 956 957 softc->dev = make_dev(&ctl_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, 958 "cam/ctl"); 959 960 softc->dev->si_drv1 = softc; 961 962 /* 963 * By default, return a "bad LUN" peripheral qualifier for unknown 964 * LUNs. The user can override this default using the tunable or 965 * sysctl. See the comment in ctl_inquiry_std() for more details. 966 */ 967 softc->inquiry_pq_no_lun = 1; 968 TUNABLE_INT_FETCH("kern.cam.ctl.inquiry_pq_no_lun", 969 &softc->inquiry_pq_no_lun); 970 sysctl_ctx_init(&softc->sysctl_ctx); 971 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 972 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 973 CTLFLAG_RD, 0, "CAM Target Layer"); 974 975 if (softc->sysctl_tree == NULL) { 976 printf("%s: unable to allocate sysctl tree\n", __func__); 977 destroy_dev(softc->dev); 978 free(control_softc, M_DEVBUF); 979 control_softc = NULL; 980 return (ENOMEM); 981 } 982 983 SYSCTL_ADD_INT(&softc->sysctl_ctx, 984 SYSCTL_CHILDREN(softc->sysctl_tree), OID_AUTO, 985 "inquiry_pq_no_lun", CTLFLAG_RW, 986 &softc->inquiry_pq_no_lun, 0, 987 "Report no lun possible for invalid LUNs"); 988 989 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 990 mtx_init(&softc->pool_lock, "CTL pool mutex", NULL, MTX_DEF); 991 softc->open_count = 0; 992 993 /* 994 * Default to actually sending a SYNCHRONIZE CACHE command down to 995 * the drive. 996 */ 997 softc->flags = CTL_FLAG_REAL_SYNC; 998 999 /* 1000 * In Copan's HA scheme, the "master" and "slave" roles are 1001 * figured out through the slot the controller is in. Although it 1002 * is an active/active system, someone has to be in charge. 1003 */ 1004 #ifdef NEEDTOPORT 1005 scmicro_rw(SCMICRO_GET_SHELF_ID, &sc_id); 1006 #endif 1007 1008 if (sc_id == 0) { 1009 softc->flags |= CTL_FLAG_MASTER_SHELF; 1010 persis_offset = 0; 1011 } else 1012 persis_offset = CTL_MAX_INITIATORS; 1013 1014 /* 1015 * XXX KDM need to figure out where we want to get our target ID 1016 * and WWID. Is it different on each port? 1017 */ 1018 softc->target.id = 0; 1019 softc->target.wwid[0] = 0x12345678; 1020 softc->target.wwid[1] = 0x87654321; 1021 STAILQ_INIT(&softc->lun_list); 1022 STAILQ_INIT(&softc->pending_lun_queue); 1023 STAILQ_INIT(&softc->fe_list); 1024 STAILQ_INIT(&softc->port_list); 1025 STAILQ_INIT(&softc->be_list); 1026 STAILQ_INIT(&softc->io_pools); 1027 ctl_tpc_init(softc); 1028 1029 if (ctl_pool_create(softc, CTL_POOL_INTERNAL, CTL_POOL_ENTRIES_INTERNAL, 1030 &internal_pool)!= 0){ 1031 printf("ctl: can't allocate %d entry internal pool, " 1032 "exiting\n", CTL_POOL_ENTRIES_INTERNAL); 1033 return (ENOMEM); 1034 } 1035 1036 if (ctl_pool_create(softc, CTL_POOL_EMERGENCY, 1037 CTL_POOL_ENTRIES_EMERGENCY, &emergency_pool) != 0) { 1038 printf("ctl: can't allocate %d entry emergency pool, " 1039 "exiting\n", CTL_POOL_ENTRIES_EMERGENCY); 1040 ctl_pool_free(internal_pool); 1041 return (ENOMEM); 1042 } 1043 1044 if (ctl_pool_create(softc, CTL_POOL_4OTHERSC, CTL_POOL_ENTRIES_OTHER_SC, 1045 &other_pool) != 0) 1046 { 1047 printf("ctl: can't allocate %d entry other SC pool, " 1048 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1049 ctl_pool_free(internal_pool); 1050 ctl_pool_free(emergency_pool); 1051 return (ENOMEM); 1052 } 1053 1054 softc->internal_pool = internal_pool; 1055 softc->emergency_pool = emergency_pool; 1056 softc->othersc_pool = other_pool; 1057 1058 if (worker_threads <= 0) 1059 worker_threads = max(1, mp_ncpus / 4); 1060 if (worker_threads > CTL_MAX_THREADS) 1061 worker_threads = CTL_MAX_THREADS; 1062 1063 for (i = 0; i < worker_threads; i++) { 1064 struct ctl_thread *thr = &softc->threads[i]; 1065 1066 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1067 thr->ctl_softc = softc; 1068 STAILQ_INIT(&thr->incoming_queue); 1069 STAILQ_INIT(&thr->rtr_queue); 1070 STAILQ_INIT(&thr->done_queue); 1071 STAILQ_INIT(&thr->isc_queue); 1072 1073 error = kproc_kthread_add(ctl_work_thread, thr, 1074 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1075 if (error != 0) { 1076 printf("error creating CTL work thread!\n"); 1077 ctl_pool_free(internal_pool); 1078 ctl_pool_free(emergency_pool); 1079 ctl_pool_free(other_pool); 1080 return (error); 1081 } 1082 } 1083 error = kproc_kthread_add(ctl_lun_thread, softc, 1084 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1085 if (error != 0) { 1086 printf("error creating CTL lun thread!\n"); 1087 ctl_pool_free(internal_pool); 1088 ctl_pool_free(emergency_pool); 1089 ctl_pool_free(other_pool); 1090 return (error); 1091 } 1092 if (bootverbose) 1093 printf("ctl: CAM Target Layer loaded\n"); 1094 1095 /* 1096 * Initialize the ioctl front end. 1097 */ 1098 ctl_frontend_register(&ioctl_frontend); 1099 port = &softc->ioctl_info.port; 1100 port->frontend = &ioctl_frontend; 1101 sprintf(softc->ioctl_info.port_name, "ioctl"); 1102 port->port_type = CTL_PORT_IOCTL; 1103 port->num_requested_ctl_io = 100; 1104 port->port_name = softc->ioctl_info.port_name; 1105 port->port_online = ctl_ioctl_online; 1106 port->port_offline = ctl_ioctl_offline; 1107 port->onoff_arg = &softc->ioctl_info; 1108 port->lun_enable = ctl_ioctl_lun_enable; 1109 port->lun_disable = ctl_ioctl_lun_disable; 1110 port->targ_lun_arg = &softc->ioctl_info; 1111 port->fe_datamove = ctl_ioctl_datamove; 1112 port->fe_done = ctl_ioctl_done; 1113 port->max_targets = 15; 1114 port->max_target_id = 15; 1115 1116 if (ctl_port_register(&softc->ioctl_info.port, 1117 (softc->flags & CTL_FLAG_MASTER_SHELF)) != 0) { 1118 printf("ctl: ioctl front end registration failed, will " 1119 "continue anyway\n"); 1120 } 1121 1122 #ifdef CTL_IO_DELAY 1123 if (sizeof(struct callout) > CTL_TIMER_BYTES) { 1124 printf("sizeof(struct callout) %zd > CTL_TIMER_BYTES %zd\n", 1125 sizeof(struct callout), CTL_TIMER_BYTES); 1126 return (EINVAL); 1127 } 1128 #endif /* CTL_IO_DELAY */ 1129 1130 return (0); 1131 } 1132 1133 void 1134 ctl_shutdown(void) 1135 { 1136 struct ctl_softc *softc; 1137 struct ctl_lun *lun, *next_lun; 1138 struct ctl_io_pool *pool; 1139 1140 softc = (struct ctl_softc *)control_softc; 1141 1142 if (ctl_port_deregister(&softc->ioctl_info.port) != 0) 1143 printf("ctl: ioctl front end deregistration failed\n"); 1144 1145 mtx_lock(&softc->ctl_lock); 1146 1147 /* 1148 * Free up each LUN. 1149 */ 1150 for (lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; lun = next_lun){ 1151 next_lun = STAILQ_NEXT(lun, links); 1152 ctl_free_lun(lun); 1153 } 1154 1155 mtx_unlock(&softc->ctl_lock); 1156 1157 ctl_frontend_deregister(&ioctl_frontend); 1158 1159 /* 1160 * This will rip the rug out from under any FETDs or anyone else 1161 * that has a pool allocated. Since we increment our module 1162 * refcount any time someone outside the main CTL module allocates 1163 * a pool, we shouldn't have any problems here. The user won't be 1164 * able to unload the CTL module until client modules have 1165 * successfully unloaded. 1166 */ 1167 while ((pool = STAILQ_FIRST(&softc->io_pools)) != NULL) 1168 ctl_pool_free(pool); 1169 1170 #if 0 1171 ctl_shutdown_thread(softc->work_thread); 1172 mtx_destroy(&softc->queue_lock); 1173 #endif 1174 1175 ctl_tpc_shutdown(softc); 1176 mtx_destroy(&softc->pool_lock); 1177 mtx_destroy(&softc->ctl_lock); 1178 1179 destroy_dev(softc->dev); 1180 1181 sysctl_ctx_free(&softc->sysctl_ctx); 1182 1183 free(control_softc, M_DEVBUF); 1184 control_softc = NULL; 1185 1186 if (bootverbose) 1187 printf("ctl: CAM Target Layer unloaded\n"); 1188 } 1189 1190 static int 1191 ctl_module_event_handler(module_t mod, int what, void *arg) 1192 { 1193 1194 switch (what) { 1195 case MOD_LOAD: 1196 return (ctl_init()); 1197 case MOD_UNLOAD: 1198 return (EBUSY); 1199 default: 1200 return (EOPNOTSUPP); 1201 } 1202 } 1203 1204 /* 1205 * XXX KDM should we do some access checks here? Bump a reference count to 1206 * prevent a CTL module from being unloaded while someone has it open? 1207 */ 1208 static int 1209 ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1210 { 1211 return (0); 1212 } 1213 1214 static int 1215 ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1216 { 1217 return (0); 1218 } 1219 1220 int 1221 ctl_port_enable(ctl_port_type port_type) 1222 { 1223 struct ctl_softc *softc; 1224 struct ctl_port *port; 1225 1226 if (ctl_is_single == 0) { 1227 union ctl_ha_msg msg_info; 1228 int isc_retval; 1229 1230 #if 0 1231 printf("%s: HA mode, synchronizing frontend enable\n", 1232 __func__); 1233 #endif 1234 msg_info.hdr.msg_type = CTL_MSG_SYNC_FE; 1235 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1236 sizeof(msg_info), 1 )) > CTL_HA_STATUS_SUCCESS) { 1237 printf("Sync msg send error retval %d\n", isc_retval); 1238 } 1239 if (!rcv_sync_msg) { 1240 isc_retval=ctl_ha_msg_recv(CTL_HA_CHAN_CTL, &msg_info, 1241 sizeof(msg_info), 1); 1242 } 1243 #if 0 1244 printf("CTL:Frontend Enable\n"); 1245 } else { 1246 printf("%s: single mode, skipping frontend synchronization\n", 1247 __func__); 1248 #endif 1249 } 1250 1251 softc = control_softc; 1252 1253 STAILQ_FOREACH(port, &softc->port_list, links) { 1254 if (port_type & port->port_type) 1255 { 1256 #if 0 1257 printf("port %d\n", port->targ_port); 1258 #endif 1259 ctl_port_online(port); 1260 } 1261 } 1262 1263 return (0); 1264 } 1265 1266 int 1267 ctl_port_disable(ctl_port_type port_type) 1268 { 1269 struct ctl_softc *softc; 1270 struct ctl_port *port; 1271 1272 softc = control_softc; 1273 1274 STAILQ_FOREACH(port, &softc->port_list, links) { 1275 if (port_type & port->port_type) 1276 ctl_port_offline(port); 1277 } 1278 1279 return (0); 1280 } 1281 1282 /* 1283 * Returns 0 for success, 1 for failure. 1284 * Currently the only failure mode is if there aren't enough entries 1285 * allocated. So, in case of a failure, look at num_entries_dropped, 1286 * reallocate and try again. 1287 */ 1288 int 1289 ctl_port_list(struct ctl_port_entry *entries, int num_entries_alloced, 1290 int *num_entries_filled, int *num_entries_dropped, 1291 ctl_port_type port_type, int no_virtual) 1292 { 1293 struct ctl_softc *softc; 1294 struct ctl_port *port; 1295 int entries_dropped, entries_filled; 1296 int retval; 1297 int i; 1298 1299 softc = control_softc; 1300 1301 retval = 0; 1302 entries_filled = 0; 1303 entries_dropped = 0; 1304 1305 i = 0; 1306 mtx_lock(&softc->ctl_lock); 1307 STAILQ_FOREACH(port, &softc->port_list, links) { 1308 struct ctl_port_entry *entry; 1309 1310 if ((port->port_type & port_type) == 0) 1311 continue; 1312 1313 if ((no_virtual != 0) 1314 && (port->virtual_port != 0)) 1315 continue; 1316 1317 if (entries_filled >= num_entries_alloced) { 1318 entries_dropped++; 1319 continue; 1320 } 1321 entry = &entries[i]; 1322 1323 entry->port_type = port->port_type; 1324 strlcpy(entry->port_name, port->port_name, 1325 sizeof(entry->port_name)); 1326 entry->physical_port = port->physical_port; 1327 entry->virtual_port = port->virtual_port; 1328 entry->wwnn = port->wwnn; 1329 entry->wwpn = port->wwpn; 1330 1331 i++; 1332 entries_filled++; 1333 } 1334 1335 mtx_unlock(&softc->ctl_lock); 1336 1337 if (entries_dropped > 0) 1338 retval = 1; 1339 1340 *num_entries_dropped = entries_dropped; 1341 *num_entries_filled = entries_filled; 1342 1343 return (retval); 1344 } 1345 1346 static void 1347 ctl_ioctl_online(void *arg) 1348 { 1349 struct ctl_ioctl_info *ioctl_info; 1350 1351 ioctl_info = (struct ctl_ioctl_info *)arg; 1352 1353 ioctl_info->flags |= CTL_IOCTL_FLAG_ENABLED; 1354 } 1355 1356 static void 1357 ctl_ioctl_offline(void *arg) 1358 { 1359 struct ctl_ioctl_info *ioctl_info; 1360 1361 ioctl_info = (struct ctl_ioctl_info *)arg; 1362 1363 ioctl_info->flags &= ~CTL_IOCTL_FLAG_ENABLED; 1364 } 1365 1366 /* 1367 * Remove an initiator by port number and initiator ID. 1368 * Returns 0 for success, -1 for failure. 1369 */ 1370 int 1371 ctl_remove_initiator(struct ctl_port *port, int iid) 1372 { 1373 struct ctl_softc *softc = control_softc; 1374 1375 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1376 1377 if (iid > CTL_MAX_INIT_PER_PORT) { 1378 printf("%s: initiator ID %u > maximun %u!\n", 1379 __func__, iid, CTL_MAX_INIT_PER_PORT); 1380 return (-1); 1381 } 1382 1383 mtx_lock(&softc->ctl_lock); 1384 port->wwpn_iid[iid].in_use--; 1385 port->wwpn_iid[iid].last_use = time_uptime; 1386 mtx_unlock(&softc->ctl_lock); 1387 1388 return (0); 1389 } 1390 1391 /* 1392 * Add an initiator to the initiator map. 1393 * Returns iid for success, < 0 for failure. 1394 */ 1395 int 1396 ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 1397 { 1398 struct ctl_softc *softc = control_softc; 1399 time_t best_time; 1400 int i, best; 1401 1402 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 1403 1404 if (iid >= CTL_MAX_INIT_PER_PORT) { 1405 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 1406 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 1407 free(name, M_CTL); 1408 return (-1); 1409 } 1410 1411 mtx_lock(&softc->ctl_lock); 1412 1413 if (iid < 0 && (wwpn != 0 || name != NULL)) { 1414 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1415 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 1416 iid = i; 1417 break; 1418 } 1419 if (name != NULL && port->wwpn_iid[i].name != NULL && 1420 strcmp(name, port->wwpn_iid[i].name) == 0) { 1421 iid = i; 1422 break; 1423 } 1424 } 1425 } 1426 1427 if (iid < 0) { 1428 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1429 if (port->wwpn_iid[i].in_use == 0 && 1430 port->wwpn_iid[i].wwpn == 0 && 1431 port->wwpn_iid[i].name == NULL) { 1432 iid = i; 1433 break; 1434 } 1435 } 1436 } 1437 1438 if (iid < 0) { 1439 best = -1; 1440 best_time = INT32_MAX; 1441 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1442 if (port->wwpn_iid[i].in_use == 0) { 1443 if (port->wwpn_iid[i].last_use < best_time) { 1444 best = i; 1445 best_time = port->wwpn_iid[i].last_use; 1446 } 1447 } 1448 } 1449 iid = best; 1450 } 1451 1452 if (iid < 0) { 1453 mtx_unlock(&softc->ctl_lock); 1454 free(name, M_CTL); 1455 return (-2); 1456 } 1457 1458 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 1459 /* 1460 * This is not an error yet. 1461 */ 1462 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 1463 #if 0 1464 printf("%s: port %d iid %u WWPN %#jx arrived" 1465 " again\n", __func__, port->targ_port, 1466 iid, (uintmax_t)wwpn); 1467 #endif 1468 goto take; 1469 } 1470 if (name != NULL && port->wwpn_iid[iid].name != NULL && 1471 strcmp(name, port->wwpn_iid[iid].name) == 0) { 1472 #if 0 1473 printf("%s: port %d iid %u name '%s' arrived" 1474 " again\n", __func__, port->targ_port, 1475 iid, name); 1476 #endif 1477 goto take; 1478 } 1479 1480 /* 1481 * This is an error, but what do we do about it? The 1482 * driver is telling us we have a new WWPN for this 1483 * initiator ID, so we pretty much need to use it. 1484 */ 1485 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 1486 " but WWPN %#jx '%s' is still at that address\n", 1487 __func__, port->targ_port, iid, wwpn, name, 1488 (uintmax_t)port->wwpn_iid[iid].wwpn, 1489 port->wwpn_iid[iid].name); 1490 1491 /* 1492 * XXX KDM clear have_ca and ua_pending on each LUN for 1493 * this initiator. 1494 */ 1495 } 1496 take: 1497 free(port->wwpn_iid[iid].name, M_CTL); 1498 port->wwpn_iid[iid].name = name; 1499 port->wwpn_iid[iid].wwpn = wwpn; 1500 port->wwpn_iid[iid].in_use++; 1501 mtx_unlock(&softc->ctl_lock); 1502 1503 return (iid); 1504 } 1505 1506 static int 1507 ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 1508 { 1509 int len; 1510 1511 switch (port->port_type) { 1512 case CTL_PORT_FC: 1513 { 1514 struct scsi_transportid_fcp *id = 1515 (struct scsi_transportid_fcp *)buf; 1516 if (port->wwpn_iid[iid].wwpn == 0) 1517 return (0); 1518 memset(id, 0, sizeof(*id)); 1519 id->format_protocol = SCSI_PROTO_FC; 1520 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 1521 return (sizeof(*id)); 1522 } 1523 case CTL_PORT_ISCSI: 1524 { 1525 struct scsi_transportid_iscsi_port *id = 1526 (struct scsi_transportid_iscsi_port *)buf; 1527 if (port->wwpn_iid[iid].name == NULL) 1528 return (0); 1529 memset(id, 0, 256); 1530 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 1531 SCSI_PROTO_ISCSI; 1532 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 1533 len = roundup2(min(len, 252), 4); 1534 scsi_ulto2b(len, id->additional_length); 1535 return (sizeof(*id) + len); 1536 } 1537 case CTL_PORT_SAS: 1538 { 1539 struct scsi_transportid_sas *id = 1540 (struct scsi_transportid_sas *)buf; 1541 if (port->wwpn_iid[iid].wwpn == 0) 1542 return (0); 1543 memset(id, 0, sizeof(*id)); 1544 id->format_protocol = SCSI_PROTO_SAS; 1545 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 1546 return (sizeof(*id)); 1547 } 1548 default: 1549 { 1550 struct scsi_transportid_spi *id = 1551 (struct scsi_transportid_spi *)buf; 1552 memset(id, 0, sizeof(*id)); 1553 id->format_protocol = SCSI_PROTO_SPI; 1554 scsi_ulto2b(iid, id->scsi_addr); 1555 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 1556 return (sizeof(*id)); 1557 } 1558 } 1559 } 1560 1561 static int 1562 ctl_ioctl_lun_enable(void *arg, struct ctl_id targ_id, int lun_id) 1563 { 1564 return (0); 1565 } 1566 1567 static int 1568 ctl_ioctl_lun_disable(void *arg, struct ctl_id targ_id, int lun_id) 1569 { 1570 return (0); 1571 } 1572 1573 /* 1574 * Data movement routine for the CTL ioctl frontend port. 1575 */ 1576 static int 1577 ctl_ioctl_do_datamove(struct ctl_scsiio *ctsio) 1578 { 1579 struct ctl_sg_entry *ext_sglist, *kern_sglist; 1580 struct ctl_sg_entry ext_entry, kern_entry; 1581 int ext_sglen, ext_sg_entries, kern_sg_entries; 1582 int ext_sg_start, ext_offset; 1583 int len_to_copy, len_copied; 1584 int kern_watermark, ext_watermark; 1585 int ext_sglist_malloced; 1586 int i, j; 1587 1588 ext_sglist_malloced = 0; 1589 ext_sg_start = 0; 1590 ext_offset = 0; 1591 1592 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove\n")); 1593 1594 /* 1595 * If this flag is set, fake the data transfer. 1596 */ 1597 if (ctsio->io_hdr.flags & CTL_FLAG_NO_DATAMOVE) { 1598 ctsio->ext_data_filled = ctsio->ext_data_len; 1599 goto bailout; 1600 } 1601 1602 /* 1603 * To simplify things here, if we have a single buffer, stick it in 1604 * a S/G entry and just make it a single entry S/G list. 1605 */ 1606 if (ctsio->io_hdr.flags & CTL_FLAG_EDPTR_SGLIST) { 1607 int len_seen; 1608 1609 ext_sglen = ctsio->ext_sg_entries * sizeof(*ext_sglist); 1610 1611 ext_sglist = (struct ctl_sg_entry *)malloc(ext_sglen, M_CTL, 1612 M_WAITOK); 1613 ext_sglist_malloced = 1; 1614 if (copyin(ctsio->ext_data_ptr, ext_sglist, 1615 ext_sglen) != 0) { 1616 ctl_set_internal_failure(ctsio, 1617 /*sks_valid*/ 0, 1618 /*retry_count*/ 0); 1619 goto bailout; 1620 } 1621 ext_sg_entries = ctsio->ext_sg_entries; 1622 len_seen = 0; 1623 for (i = 0; i < ext_sg_entries; i++) { 1624 if ((len_seen + ext_sglist[i].len) >= 1625 ctsio->ext_data_filled) { 1626 ext_sg_start = i; 1627 ext_offset = ctsio->ext_data_filled - len_seen; 1628 break; 1629 } 1630 len_seen += ext_sglist[i].len; 1631 } 1632 } else { 1633 ext_sglist = &ext_entry; 1634 ext_sglist->addr = ctsio->ext_data_ptr; 1635 ext_sglist->len = ctsio->ext_data_len; 1636 ext_sg_entries = 1; 1637 ext_sg_start = 0; 1638 ext_offset = ctsio->ext_data_filled; 1639 } 1640 1641 if (ctsio->kern_sg_entries > 0) { 1642 kern_sglist = (struct ctl_sg_entry *)ctsio->kern_data_ptr; 1643 kern_sg_entries = ctsio->kern_sg_entries; 1644 } else { 1645 kern_sglist = &kern_entry; 1646 kern_sglist->addr = ctsio->kern_data_ptr; 1647 kern_sglist->len = ctsio->kern_data_len; 1648 kern_sg_entries = 1; 1649 } 1650 1651 1652 kern_watermark = 0; 1653 ext_watermark = ext_offset; 1654 len_copied = 0; 1655 for (i = ext_sg_start, j = 0; 1656 i < ext_sg_entries && j < kern_sg_entries;) { 1657 uint8_t *ext_ptr, *kern_ptr; 1658 1659 len_to_copy = ctl_min(ext_sglist[i].len - ext_watermark, 1660 kern_sglist[j].len - kern_watermark); 1661 1662 ext_ptr = (uint8_t *)ext_sglist[i].addr; 1663 ext_ptr = ext_ptr + ext_watermark; 1664 if (ctsio->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 1665 /* 1666 * XXX KDM fix this! 1667 */ 1668 panic("need to implement bus address support"); 1669 #if 0 1670 kern_ptr = bus_to_virt(kern_sglist[j].addr); 1671 #endif 1672 } else 1673 kern_ptr = (uint8_t *)kern_sglist[j].addr; 1674 kern_ptr = kern_ptr + kern_watermark; 1675 1676 kern_watermark += len_to_copy; 1677 ext_watermark += len_to_copy; 1678 1679 if ((ctsio->io_hdr.flags & CTL_FLAG_DATA_MASK) == 1680 CTL_FLAG_DATA_IN) { 1681 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1682 "bytes to user\n", len_to_copy)); 1683 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1684 "to %p\n", kern_ptr, ext_ptr)); 1685 if (copyout(kern_ptr, ext_ptr, len_to_copy) != 0) { 1686 ctl_set_internal_failure(ctsio, 1687 /*sks_valid*/ 0, 1688 /*retry_count*/ 0); 1689 goto bailout; 1690 } 1691 } else { 1692 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: copying %d " 1693 "bytes from user\n", len_to_copy)); 1694 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: from %p " 1695 "to %p\n", ext_ptr, kern_ptr)); 1696 if (copyin(ext_ptr, kern_ptr, len_to_copy)!= 0){ 1697 ctl_set_internal_failure(ctsio, 1698 /*sks_valid*/ 0, 1699 /*retry_count*/0); 1700 goto bailout; 1701 } 1702 } 1703 1704 len_copied += len_to_copy; 1705 1706 if (ext_sglist[i].len == ext_watermark) { 1707 i++; 1708 ext_watermark = 0; 1709 } 1710 1711 if (kern_sglist[j].len == kern_watermark) { 1712 j++; 1713 kern_watermark = 0; 1714 } 1715 } 1716 1717 ctsio->ext_data_filled += len_copied; 1718 1719 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_sg_entries: %d, " 1720 "kern_sg_entries: %d\n", ext_sg_entries, 1721 kern_sg_entries)); 1722 CTL_DEBUG_PRINT(("ctl_ioctl_do_datamove: ext_data_len = %d, " 1723 "kern_data_len = %d\n", ctsio->ext_data_len, 1724 ctsio->kern_data_len)); 1725 1726 1727 /* XXX KDM set residual?? */ 1728 bailout: 1729 1730 if (ext_sglist_malloced != 0) 1731 free(ext_sglist, M_CTL); 1732 1733 return (CTL_RETVAL_COMPLETE); 1734 } 1735 1736 /* 1737 * Serialize a command that went down the "wrong" side, and so was sent to 1738 * this controller for execution. The logic is a little different than the 1739 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 1740 * sent back to the other side, but in the success case, we execute the 1741 * command on this side (XFER mode) or tell the other side to execute it 1742 * (SER_ONLY mode). 1743 */ 1744 static int 1745 ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 1746 { 1747 struct ctl_softc *ctl_softc; 1748 union ctl_ha_msg msg_info; 1749 struct ctl_lun *lun; 1750 int retval = 0; 1751 uint32_t targ_lun; 1752 1753 ctl_softc = control_softc; 1754 1755 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 1756 lun = ctl_softc->ctl_luns[targ_lun]; 1757 if (lun==NULL) 1758 { 1759 /* 1760 * Why isn't LUN defined? The other side wouldn't 1761 * send a cmd if the LUN is undefined. 1762 */ 1763 printf("%s: Bad JUJU!, LUN is NULL!\n", __func__); 1764 1765 /* "Logical unit not supported" */ 1766 ctl_set_sense_data(&msg_info.scsi.sense_data, 1767 lun, 1768 /*sense_format*/SSD_TYPE_NONE, 1769 /*current_error*/ 1, 1770 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1771 /*asc*/ 0x25, 1772 /*ascq*/ 0x00, 1773 SSD_ELEM_NONE); 1774 1775 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1776 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1777 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1778 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1779 msg_info.hdr.serializing_sc = NULL; 1780 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1781 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1782 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1783 } 1784 return(1); 1785 1786 } 1787 1788 mtx_lock(&lun->lun_lock); 1789 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1790 1791 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 1792 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 1793 ooa_links))) { 1794 case CTL_ACTION_BLOCK: 1795 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 1796 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 1797 blocked_links); 1798 break; 1799 case CTL_ACTION_PASS: 1800 case CTL_ACTION_SKIP: 1801 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 1802 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 1803 ctl_enqueue_rtr((union ctl_io *)ctsio); 1804 } else { 1805 1806 /* send msg back to other side */ 1807 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1808 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 1809 msg_info.hdr.msg_type = CTL_MSG_R2R; 1810 #if 0 1811 printf("2. pOrig %x\n", (int)msg_info.hdr.original_sc); 1812 #endif 1813 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1814 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1815 } 1816 } 1817 break; 1818 case CTL_ACTION_OVERLAP: 1819 /* OVERLAPPED COMMANDS ATTEMPTED */ 1820 ctl_set_sense_data(&msg_info.scsi.sense_data, 1821 lun, 1822 /*sense_format*/SSD_TYPE_NONE, 1823 /*current_error*/ 1, 1824 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1825 /*asc*/ 0x4E, 1826 /*ascq*/ 0x00, 1827 SSD_ELEM_NONE); 1828 1829 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1830 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1831 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1832 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1833 msg_info.hdr.serializing_sc = NULL; 1834 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1835 #if 0 1836 printf("BAD JUJU:Major Bummer Overlap\n"); 1837 #endif 1838 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1839 retval = 1; 1840 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1841 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1842 } 1843 break; 1844 case CTL_ACTION_OVERLAP_TAG: 1845 /* TAGGED OVERLAPPED COMMANDS (NN = QUEUE TAG) */ 1846 ctl_set_sense_data(&msg_info.scsi.sense_data, 1847 lun, 1848 /*sense_format*/SSD_TYPE_NONE, 1849 /*current_error*/ 1, 1850 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 1851 /*asc*/ 0x4D, 1852 /*ascq*/ ctsio->tag_num & 0xff, 1853 SSD_ELEM_NONE); 1854 1855 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1856 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1857 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1858 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1859 msg_info.hdr.serializing_sc = NULL; 1860 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1861 #if 0 1862 printf("BAD JUJU:Major Bummer Overlap Tag\n"); 1863 #endif 1864 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1865 retval = 1; 1866 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1867 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1868 } 1869 break; 1870 case CTL_ACTION_ERROR: 1871 default: 1872 /* "Internal target failure" */ 1873 ctl_set_sense_data(&msg_info.scsi.sense_data, 1874 lun, 1875 /*sense_format*/SSD_TYPE_NONE, 1876 /*current_error*/ 1, 1877 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 1878 /*asc*/ 0x44, 1879 /*ascq*/ 0x00, 1880 SSD_ELEM_NONE); 1881 1882 msg_info.scsi.sense_len = SSD_FULL_SIZE; 1883 msg_info.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 1884 msg_info.hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 1885 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 1886 msg_info.hdr.serializing_sc = NULL; 1887 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 1888 #if 0 1889 printf("BAD JUJU:Major Bummer HW Error\n"); 1890 #endif 1891 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 1892 retval = 1; 1893 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 1894 sizeof(msg_info), 0 ) > CTL_HA_STATUS_SUCCESS) { 1895 } 1896 break; 1897 } 1898 mtx_unlock(&lun->lun_lock); 1899 return (retval); 1900 } 1901 1902 static int 1903 ctl_ioctl_submit_wait(union ctl_io *io) 1904 { 1905 struct ctl_fe_ioctl_params params; 1906 ctl_fe_ioctl_state last_state; 1907 int done, retval; 1908 1909 retval = 0; 1910 1911 bzero(¶ms, sizeof(params)); 1912 1913 mtx_init(¶ms.ioctl_mtx, "ctliocmtx", NULL, MTX_DEF); 1914 cv_init(¶ms.sem, "ctlioccv"); 1915 params.state = CTL_IOCTL_INPROG; 1916 last_state = params.state; 1917 1918 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = ¶ms; 1919 1920 CTL_DEBUG_PRINT(("ctl_ioctl_submit_wait\n")); 1921 1922 /* This shouldn't happen */ 1923 if ((retval = ctl_queue(io)) != CTL_RETVAL_COMPLETE) 1924 return (retval); 1925 1926 done = 0; 1927 1928 do { 1929 mtx_lock(¶ms.ioctl_mtx); 1930 /* 1931 * Check the state here, and don't sleep if the state has 1932 * already changed (i.e. wakeup has already occured, but we 1933 * weren't waiting yet). 1934 */ 1935 if (params.state == last_state) { 1936 /* XXX KDM cv_wait_sig instead? */ 1937 cv_wait(¶ms.sem, ¶ms.ioctl_mtx); 1938 } 1939 last_state = params.state; 1940 1941 switch (params.state) { 1942 case CTL_IOCTL_INPROG: 1943 /* Why did we wake up? */ 1944 /* XXX KDM error here? */ 1945 mtx_unlock(¶ms.ioctl_mtx); 1946 break; 1947 case CTL_IOCTL_DATAMOVE: 1948 CTL_DEBUG_PRINT(("got CTL_IOCTL_DATAMOVE\n")); 1949 1950 /* 1951 * change last_state back to INPROG to avoid 1952 * deadlock on subsequent data moves. 1953 */ 1954 params.state = last_state = CTL_IOCTL_INPROG; 1955 1956 mtx_unlock(¶ms.ioctl_mtx); 1957 ctl_ioctl_do_datamove(&io->scsiio); 1958 /* 1959 * Note that in some cases, most notably writes, 1960 * this will queue the I/O and call us back later. 1961 * In other cases, generally reads, this routine 1962 * will immediately call back and wake us up, 1963 * probably using our own context. 1964 */ 1965 io->scsiio.be_move_done(io); 1966 break; 1967 case CTL_IOCTL_DONE: 1968 mtx_unlock(¶ms.ioctl_mtx); 1969 CTL_DEBUG_PRINT(("got CTL_IOCTL_DONE\n")); 1970 done = 1; 1971 break; 1972 default: 1973 mtx_unlock(¶ms.ioctl_mtx); 1974 /* XXX KDM error here? */ 1975 break; 1976 } 1977 } while (done == 0); 1978 1979 mtx_destroy(¶ms.ioctl_mtx); 1980 cv_destroy(¶ms.sem); 1981 1982 return (CTL_RETVAL_COMPLETE); 1983 } 1984 1985 static void 1986 ctl_ioctl_datamove(union ctl_io *io) 1987 { 1988 struct ctl_fe_ioctl_params *params; 1989 1990 params = (struct ctl_fe_ioctl_params *) 1991 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 1992 1993 mtx_lock(¶ms->ioctl_mtx); 1994 params->state = CTL_IOCTL_DATAMOVE; 1995 cv_broadcast(¶ms->sem); 1996 mtx_unlock(¶ms->ioctl_mtx); 1997 } 1998 1999 static void 2000 ctl_ioctl_done(union ctl_io *io) 2001 { 2002 struct ctl_fe_ioctl_params *params; 2003 2004 params = (struct ctl_fe_ioctl_params *) 2005 io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr; 2006 2007 mtx_lock(¶ms->ioctl_mtx); 2008 params->state = CTL_IOCTL_DONE; 2009 cv_broadcast(¶ms->sem); 2010 mtx_unlock(¶ms->ioctl_mtx); 2011 } 2012 2013 static void 2014 ctl_ioctl_hard_startstop_callback(void *arg, struct cfi_metatask *metatask) 2015 { 2016 struct ctl_fe_ioctl_startstop_info *sd_info; 2017 2018 sd_info = (struct ctl_fe_ioctl_startstop_info *)arg; 2019 2020 sd_info->hs_info.status = metatask->status; 2021 sd_info->hs_info.total_luns = metatask->taskinfo.startstop.total_luns; 2022 sd_info->hs_info.luns_complete = 2023 metatask->taskinfo.startstop.luns_complete; 2024 sd_info->hs_info.luns_failed = metatask->taskinfo.startstop.luns_failed; 2025 2026 cv_broadcast(&sd_info->sem); 2027 } 2028 2029 static void 2030 ctl_ioctl_bbrread_callback(void *arg, struct cfi_metatask *metatask) 2031 { 2032 struct ctl_fe_ioctl_bbrread_info *fe_bbr_info; 2033 2034 fe_bbr_info = (struct ctl_fe_ioctl_bbrread_info *)arg; 2035 2036 mtx_lock(fe_bbr_info->lock); 2037 fe_bbr_info->bbr_info->status = metatask->status; 2038 fe_bbr_info->bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2039 fe_bbr_info->wakeup_done = 1; 2040 mtx_unlock(fe_bbr_info->lock); 2041 2042 cv_broadcast(&fe_bbr_info->sem); 2043 } 2044 2045 /* 2046 * Returns 0 for success, errno for failure. 2047 */ 2048 static int 2049 ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2050 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2051 { 2052 union ctl_io *io; 2053 int retval; 2054 2055 retval = 0; 2056 2057 mtx_lock(&lun->lun_lock); 2058 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2059 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2060 ooa_links)) { 2061 struct ctl_ooa_entry *entry; 2062 2063 /* 2064 * If we've got more than we can fit, just count the 2065 * remaining entries. 2066 */ 2067 if (*cur_fill_num >= ooa_hdr->alloc_num) 2068 continue; 2069 2070 entry = &kern_entries[*cur_fill_num]; 2071 2072 entry->tag_num = io->scsiio.tag_num; 2073 entry->lun_num = lun->lun; 2074 #ifdef CTL_TIME_IO 2075 entry->start_bt = io->io_hdr.start_bt; 2076 #endif 2077 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2078 entry->cdb_len = io->scsiio.cdb_len; 2079 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2080 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2081 2082 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2083 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2084 2085 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2086 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2087 2088 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2089 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2090 2091 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2092 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2093 } 2094 mtx_unlock(&lun->lun_lock); 2095 2096 return (retval); 2097 } 2098 2099 static void * 2100 ctl_copyin_alloc(void *user_addr, int len, char *error_str, 2101 size_t error_str_len) 2102 { 2103 void *kptr; 2104 2105 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2106 2107 if (copyin(user_addr, kptr, len) != 0) { 2108 snprintf(error_str, error_str_len, "Error copying %d bytes " 2109 "from user address %p to kernel address %p", len, 2110 user_addr, kptr); 2111 free(kptr, M_CTL); 2112 return (NULL); 2113 } 2114 2115 return (kptr); 2116 } 2117 2118 static void 2119 ctl_free_args(int num_args, struct ctl_be_arg *args) 2120 { 2121 int i; 2122 2123 if (args == NULL) 2124 return; 2125 2126 for (i = 0; i < num_args; i++) { 2127 free(args[i].kname, M_CTL); 2128 free(args[i].kvalue, M_CTL); 2129 } 2130 2131 free(args, M_CTL); 2132 } 2133 2134 static struct ctl_be_arg * 2135 ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2136 char *error_str, size_t error_str_len) 2137 { 2138 struct ctl_be_arg *args; 2139 int i; 2140 2141 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2142 error_str, error_str_len); 2143 2144 if (args == NULL) 2145 goto bailout; 2146 2147 for (i = 0; i < num_args; i++) { 2148 args[i].kname = NULL; 2149 args[i].kvalue = NULL; 2150 } 2151 2152 for (i = 0; i < num_args; i++) { 2153 uint8_t *tmpptr; 2154 2155 args[i].kname = ctl_copyin_alloc(args[i].name, 2156 args[i].namelen, error_str, error_str_len); 2157 if (args[i].kname == NULL) 2158 goto bailout; 2159 2160 if (args[i].kname[args[i].namelen - 1] != '\0') { 2161 snprintf(error_str, error_str_len, "Argument %d " 2162 "name is not NUL-terminated", i); 2163 goto bailout; 2164 } 2165 2166 if (args[i].flags & CTL_BEARG_RD) { 2167 tmpptr = ctl_copyin_alloc(args[i].value, 2168 args[i].vallen, error_str, error_str_len); 2169 if (tmpptr == NULL) 2170 goto bailout; 2171 if ((args[i].flags & CTL_BEARG_ASCII) 2172 && (tmpptr[args[i].vallen - 1] != '\0')) { 2173 snprintf(error_str, error_str_len, "Argument " 2174 "%d value is not NUL-terminated", i); 2175 goto bailout; 2176 } 2177 args[i].kvalue = tmpptr; 2178 } else { 2179 args[i].kvalue = malloc(args[i].vallen, 2180 M_CTL, M_WAITOK | M_ZERO); 2181 } 2182 } 2183 2184 return (args); 2185 bailout: 2186 2187 ctl_free_args(num_args, args); 2188 2189 return (NULL); 2190 } 2191 2192 static void 2193 ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2194 { 2195 int i; 2196 2197 for (i = 0; i < num_args; i++) { 2198 if (args[i].flags & CTL_BEARG_WR) 2199 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2200 } 2201 } 2202 2203 /* 2204 * Escape characters that are illegal or not recommended in XML. 2205 */ 2206 int 2207 ctl_sbuf_printf_esc(struct sbuf *sb, char *str) 2208 { 2209 int retval; 2210 2211 retval = 0; 2212 2213 for (; *str; str++) { 2214 switch (*str) { 2215 case '&': 2216 retval = sbuf_printf(sb, "&"); 2217 break; 2218 case '>': 2219 retval = sbuf_printf(sb, ">"); 2220 break; 2221 case '<': 2222 retval = sbuf_printf(sb, "<"); 2223 break; 2224 default: 2225 retval = sbuf_putc(sb, *str); 2226 break; 2227 } 2228 2229 if (retval != 0) 2230 break; 2231 2232 } 2233 2234 return (retval); 2235 } 2236 2237 static int 2238 ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2239 struct thread *td) 2240 { 2241 struct ctl_softc *softc; 2242 int retval; 2243 2244 softc = control_softc; 2245 2246 retval = 0; 2247 2248 switch (cmd) { 2249 case CTL_IO: { 2250 union ctl_io *io; 2251 void *pool_tmp; 2252 2253 /* 2254 * If we haven't been "enabled", don't allow any SCSI I/O 2255 * to this FETD. 2256 */ 2257 if ((softc->ioctl_info.flags & CTL_IOCTL_FLAG_ENABLED) == 0) { 2258 retval = EPERM; 2259 break; 2260 } 2261 2262 io = ctl_alloc_io(softc->ioctl_info.port.ctl_pool_ref); 2263 if (io == NULL) { 2264 printf("ctl_ioctl: can't allocate ctl_io!\n"); 2265 retval = ENOSPC; 2266 break; 2267 } 2268 2269 /* 2270 * Need to save the pool reference so it doesn't get 2271 * spammed by the user's ctl_io. 2272 */ 2273 pool_tmp = io->io_hdr.pool; 2274 2275 memcpy(io, (void *)addr, sizeof(*io)); 2276 2277 io->io_hdr.pool = pool_tmp; 2278 /* 2279 * No status yet, so make sure the status is set properly. 2280 */ 2281 io->io_hdr.status = CTL_STATUS_NONE; 2282 2283 /* 2284 * The user sets the initiator ID, target and LUN IDs. 2285 */ 2286 io->io_hdr.nexus.targ_port = softc->ioctl_info.port.targ_port; 2287 io->io_hdr.flags |= CTL_FLAG_USER_REQ; 2288 if ((io->io_hdr.io_type == CTL_IO_SCSI) 2289 && (io->scsiio.tag_type != CTL_TAG_UNTAGGED)) 2290 io->scsiio.tag_num = softc->ioctl_info.cur_tag_num++; 2291 2292 retval = ctl_ioctl_submit_wait(io); 2293 2294 if (retval != 0) { 2295 ctl_free_io(io); 2296 break; 2297 } 2298 2299 memcpy((void *)addr, io, sizeof(*io)); 2300 2301 /* return this to our pool */ 2302 ctl_free_io(io); 2303 2304 break; 2305 } 2306 case CTL_ENABLE_PORT: 2307 case CTL_DISABLE_PORT: 2308 case CTL_SET_PORT_WWNS: { 2309 struct ctl_port *port; 2310 struct ctl_port_entry *entry; 2311 2312 entry = (struct ctl_port_entry *)addr; 2313 2314 mtx_lock(&softc->ctl_lock); 2315 STAILQ_FOREACH(port, &softc->port_list, links) { 2316 int action, done; 2317 2318 action = 0; 2319 done = 0; 2320 2321 if ((entry->port_type == CTL_PORT_NONE) 2322 && (entry->targ_port == port->targ_port)) { 2323 /* 2324 * If the user only wants to enable or 2325 * disable or set WWNs on a specific port, 2326 * do the operation and we're done. 2327 */ 2328 action = 1; 2329 done = 1; 2330 } else if (entry->port_type & port->port_type) { 2331 /* 2332 * Compare the user's type mask with the 2333 * particular frontend type to see if we 2334 * have a match. 2335 */ 2336 action = 1; 2337 done = 0; 2338 2339 /* 2340 * Make sure the user isn't trying to set 2341 * WWNs on multiple ports at the same time. 2342 */ 2343 if (cmd == CTL_SET_PORT_WWNS) { 2344 printf("%s: Can't set WWNs on " 2345 "multiple ports\n", __func__); 2346 retval = EINVAL; 2347 break; 2348 } 2349 } 2350 if (action != 0) { 2351 /* 2352 * XXX KDM we have to drop the lock here, 2353 * because the online/offline operations 2354 * can potentially block. We need to 2355 * reference count the frontends so they 2356 * can't go away, 2357 */ 2358 mtx_unlock(&softc->ctl_lock); 2359 2360 if (cmd == CTL_ENABLE_PORT) { 2361 struct ctl_lun *lun; 2362 2363 STAILQ_FOREACH(lun, &softc->lun_list, 2364 links) { 2365 port->lun_enable(port->targ_lun_arg, 2366 lun->target, 2367 lun->lun); 2368 } 2369 2370 ctl_port_online(port); 2371 } else if (cmd == CTL_DISABLE_PORT) { 2372 struct ctl_lun *lun; 2373 2374 ctl_port_offline(port); 2375 2376 STAILQ_FOREACH(lun, &softc->lun_list, 2377 links) { 2378 port->lun_disable( 2379 port->targ_lun_arg, 2380 lun->target, 2381 lun->lun); 2382 } 2383 } 2384 2385 mtx_lock(&softc->ctl_lock); 2386 2387 if (cmd == CTL_SET_PORT_WWNS) 2388 ctl_port_set_wwns(port, 2389 (entry->flags & CTL_PORT_WWNN_VALID) ? 2390 1 : 0, entry->wwnn, 2391 (entry->flags & CTL_PORT_WWPN_VALID) ? 2392 1 : 0, entry->wwpn); 2393 } 2394 if (done != 0) 2395 break; 2396 } 2397 mtx_unlock(&softc->ctl_lock); 2398 break; 2399 } 2400 case CTL_GET_PORT_LIST: { 2401 struct ctl_port *port; 2402 struct ctl_port_list *list; 2403 int i; 2404 2405 list = (struct ctl_port_list *)addr; 2406 2407 if (list->alloc_len != (list->alloc_num * 2408 sizeof(struct ctl_port_entry))) { 2409 printf("%s: CTL_GET_PORT_LIST: alloc_len %u != " 2410 "alloc_num %u * sizeof(struct ctl_port_entry) " 2411 "%zu\n", __func__, list->alloc_len, 2412 list->alloc_num, sizeof(struct ctl_port_entry)); 2413 retval = EINVAL; 2414 break; 2415 } 2416 list->fill_len = 0; 2417 list->fill_num = 0; 2418 list->dropped_num = 0; 2419 i = 0; 2420 mtx_lock(&softc->ctl_lock); 2421 STAILQ_FOREACH(port, &softc->port_list, links) { 2422 struct ctl_port_entry entry, *list_entry; 2423 2424 if (list->fill_num >= list->alloc_num) { 2425 list->dropped_num++; 2426 continue; 2427 } 2428 2429 entry.port_type = port->port_type; 2430 strlcpy(entry.port_name, port->port_name, 2431 sizeof(entry.port_name)); 2432 entry.targ_port = port->targ_port; 2433 entry.physical_port = port->physical_port; 2434 entry.virtual_port = port->virtual_port; 2435 entry.wwnn = port->wwnn; 2436 entry.wwpn = port->wwpn; 2437 if (port->status & CTL_PORT_STATUS_ONLINE) 2438 entry.online = 1; 2439 else 2440 entry.online = 0; 2441 2442 list_entry = &list->entries[i]; 2443 2444 retval = copyout(&entry, list_entry, sizeof(entry)); 2445 if (retval != 0) { 2446 printf("%s: CTL_GET_PORT_LIST: copyout " 2447 "returned %d\n", __func__, retval); 2448 break; 2449 } 2450 i++; 2451 list->fill_num++; 2452 list->fill_len += sizeof(entry); 2453 } 2454 mtx_unlock(&softc->ctl_lock); 2455 2456 /* 2457 * If this is non-zero, we had a copyout fault, so there's 2458 * probably no point in attempting to set the status inside 2459 * the structure. 2460 */ 2461 if (retval != 0) 2462 break; 2463 2464 if (list->dropped_num > 0) 2465 list->status = CTL_PORT_LIST_NEED_MORE_SPACE; 2466 else 2467 list->status = CTL_PORT_LIST_OK; 2468 break; 2469 } 2470 case CTL_DUMP_OOA: { 2471 struct ctl_lun *lun; 2472 union ctl_io *io; 2473 char printbuf[128]; 2474 struct sbuf sb; 2475 2476 mtx_lock(&softc->ctl_lock); 2477 printf("Dumping OOA queues:\n"); 2478 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2479 mtx_lock(&lun->lun_lock); 2480 for (io = (union ctl_io *)TAILQ_FIRST( 2481 &lun->ooa_queue); io != NULL; 2482 io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2483 ooa_links)) { 2484 sbuf_new(&sb, printbuf, sizeof(printbuf), 2485 SBUF_FIXEDLEN); 2486 sbuf_printf(&sb, "LUN %jd tag 0x%04x%s%s%s%s: ", 2487 (intmax_t)lun->lun, 2488 io->scsiio.tag_num, 2489 (io->io_hdr.flags & 2490 CTL_FLAG_BLOCKED) ? "" : " BLOCKED", 2491 (io->io_hdr.flags & 2492 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 2493 (io->io_hdr.flags & 2494 CTL_FLAG_ABORT) ? " ABORT" : "", 2495 (io->io_hdr.flags & 2496 CTL_FLAG_IS_WAS_ON_RTR) ? " RTR" : ""); 2497 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 2498 sbuf_finish(&sb); 2499 printf("%s\n", sbuf_data(&sb)); 2500 } 2501 mtx_unlock(&lun->lun_lock); 2502 } 2503 printf("OOA queues dump done\n"); 2504 mtx_unlock(&softc->ctl_lock); 2505 break; 2506 } 2507 case CTL_GET_OOA: { 2508 struct ctl_lun *lun; 2509 struct ctl_ooa *ooa_hdr; 2510 struct ctl_ooa_entry *entries; 2511 uint32_t cur_fill_num; 2512 2513 ooa_hdr = (struct ctl_ooa *)addr; 2514 2515 if ((ooa_hdr->alloc_len == 0) 2516 || (ooa_hdr->alloc_num == 0)) { 2517 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2518 "must be non-zero\n", __func__, 2519 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2520 retval = EINVAL; 2521 break; 2522 } 2523 2524 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2525 sizeof(struct ctl_ooa_entry))) { 2526 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2527 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2528 __func__, ooa_hdr->alloc_len, 2529 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2530 retval = EINVAL; 2531 break; 2532 } 2533 2534 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2535 if (entries == NULL) { 2536 printf("%s: could not allocate %d bytes for OOA " 2537 "dump\n", __func__, ooa_hdr->alloc_len); 2538 retval = ENOMEM; 2539 break; 2540 } 2541 2542 mtx_lock(&softc->ctl_lock); 2543 if (((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0) 2544 && ((ooa_hdr->lun_num > CTL_MAX_LUNS) 2545 || (softc->ctl_luns[ooa_hdr->lun_num] == NULL))) { 2546 mtx_unlock(&softc->ctl_lock); 2547 free(entries, M_CTL); 2548 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2549 __func__, (uintmax_t)ooa_hdr->lun_num); 2550 retval = EINVAL; 2551 break; 2552 } 2553 2554 cur_fill_num = 0; 2555 2556 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2557 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2558 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2559 ooa_hdr, entries); 2560 if (retval != 0) 2561 break; 2562 } 2563 if (retval != 0) { 2564 mtx_unlock(&softc->ctl_lock); 2565 free(entries, M_CTL); 2566 break; 2567 } 2568 } else { 2569 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2570 2571 retval = ctl_ioctl_fill_ooa(lun, &cur_fill_num,ooa_hdr, 2572 entries); 2573 } 2574 mtx_unlock(&softc->ctl_lock); 2575 2576 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2577 ooa_hdr->fill_len = ooa_hdr->fill_num * 2578 sizeof(struct ctl_ooa_entry); 2579 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2580 if (retval != 0) { 2581 printf("%s: error copying out %d bytes for OOA dump\n", 2582 __func__, ooa_hdr->fill_len); 2583 } 2584 2585 getbintime(&ooa_hdr->cur_bt); 2586 2587 if (cur_fill_num > ooa_hdr->alloc_num) { 2588 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2589 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2590 } else { 2591 ooa_hdr->dropped_num = 0; 2592 ooa_hdr->status = CTL_OOA_OK; 2593 } 2594 2595 free(entries, M_CTL); 2596 break; 2597 } 2598 case CTL_CHECK_OOA: { 2599 union ctl_io *io; 2600 struct ctl_lun *lun; 2601 struct ctl_ooa_info *ooa_info; 2602 2603 2604 ooa_info = (struct ctl_ooa_info *)addr; 2605 2606 if (ooa_info->lun_id >= CTL_MAX_LUNS) { 2607 ooa_info->status = CTL_OOA_INVALID_LUN; 2608 break; 2609 } 2610 mtx_lock(&softc->ctl_lock); 2611 lun = softc->ctl_luns[ooa_info->lun_id]; 2612 if (lun == NULL) { 2613 mtx_unlock(&softc->ctl_lock); 2614 ooa_info->status = CTL_OOA_INVALID_LUN; 2615 break; 2616 } 2617 mtx_lock(&lun->lun_lock); 2618 mtx_unlock(&softc->ctl_lock); 2619 ooa_info->num_entries = 0; 2620 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 2621 io != NULL; io = (union ctl_io *)TAILQ_NEXT( 2622 &io->io_hdr, ooa_links)) { 2623 ooa_info->num_entries++; 2624 } 2625 mtx_unlock(&lun->lun_lock); 2626 2627 ooa_info->status = CTL_OOA_SUCCESS; 2628 2629 break; 2630 } 2631 case CTL_HARD_START: 2632 case CTL_HARD_STOP: { 2633 struct ctl_fe_ioctl_startstop_info ss_info; 2634 struct cfi_metatask *metatask; 2635 struct mtx hs_mtx; 2636 2637 mtx_init(&hs_mtx, "HS Mutex", NULL, MTX_DEF); 2638 2639 cv_init(&ss_info.sem, "hard start/stop cv" ); 2640 2641 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2642 if (metatask == NULL) { 2643 retval = ENOMEM; 2644 mtx_destroy(&hs_mtx); 2645 break; 2646 } 2647 2648 if (cmd == CTL_HARD_START) 2649 metatask->tasktype = CFI_TASK_STARTUP; 2650 else 2651 metatask->tasktype = CFI_TASK_SHUTDOWN; 2652 2653 metatask->callback = ctl_ioctl_hard_startstop_callback; 2654 metatask->callback_arg = &ss_info; 2655 2656 cfi_action(metatask); 2657 2658 /* Wait for the callback */ 2659 mtx_lock(&hs_mtx); 2660 cv_wait_sig(&ss_info.sem, &hs_mtx); 2661 mtx_unlock(&hs_mtx); 2662 2663 /* 2664 * All information has been copied from the metatask by the 2665 * time cv_broadcast() is called, so we free the metatask here. 2666 */ 2667 cfi_free_metatask(metatask); 2668 2669 memcpy((void *)addr, &ss_info.hs_info, sizeof(ss_info.hs_info)); 2670 2671 mtx_destroy(&hs_mtx); 2672 break; 2673 } 2674 case CTL_BBRREAD: { 2675 struct ctl_bbrread_info *bbr_info; 2676 struct ctl_fe_ioctl_bbrread_info fe_bbr_info; 2677 struct mtx bbr_mtx; 2678 struct cfi_metatask *metatask; 2679 2680 bbr_info = (struct ctl_bbrread_info *)addr; 2681 2682 bzero(&fe_bbr_info, sizeof(fe_bbr_info)); 2683 2684 bzero(&bbr_mtx, sizeof(bbr_mtx)); 2685 mtx_init(&bbr_mtx, "BBR Mutex", NULL, MTX_DEF); 2686 2687 fe_bbr_info.bbr_info = bbr_info; 2688 fe_bbr_info.lock = &bbr_mtx; 2689 2690 cv_init(&fe_bbr_info.sem, "BBR read cv"); 2691 metatask = cfi_alloc_metatask(/*can_wait*/ 1); 2692 2693 if (metatask == NULL) { 2694 mtx_destroy(&bbr_mtx); 2695 cv_destroy(&fe_bbr_info.sem); 2696 retval = ENOMEM; 2697 break; 2698 } 2699 metatask->tasktype = CFI_TASK_BBRREAD; 2700 metatask->callback = ctl_ioctl_bbrread_callback; 2701 metatask->callback_arg = &fe_bbr_info; 2702 metatask->taskinfo.bbrread.lun_num = bbr_info->lun_num; 2703 metatask->taskinfo.bbrread.lba = bbr_info->lba; 2704 metatask->taskinfo.bbrread.len = bbr_info->len; 2705 2706 cfi_action(metatask); 2707 2708 mtx_lock(&bbr_mtx); 2709 while (fe_bbr_info.wakeup_done == 0) 2710 cv_wait_sig(&fe_bbr_info.sem, &bbr_mtx); 2711 mtx_unlock(&bbr_mtx); 2712 2713 bbr_info->status = metatask->status; 2714 bbr_info->bbr_status = metatask->taskinfo.bbrread.status; 2715 bbr_info->scsi_status = metatask->taskinfo.bbrread.scsi_status; 2716 memcpy(&bbr_info->sense_data, 2717 &metatask->taskinfo.bbrread.sense_data, 2718 ctl_min(sizeof(bbr_info->sense_data), 2719 sizeof(metatask->taskinfo.bbrread.sense_data))); 2720 2721 cfi_free_metatask(metatask); 2722 2723 mtx_destroy(&bbr_mtx); 2724 cv_destroy(&fe_bbr_info.sem); 2725 2726 break; 2727 } 2728 case CTL_DELAY_IO: { 2729 struct ctl_io_delay_info *delay_info; 2730 #ifdef CTL_IO_DELAY 2731 struct ctl_lun *lun; 2732 #endif /* CTL_IO_DELAY */ 2733 2734 delay_info = (struct ctl_io_delay_info *)addr; 2735 2736 #ifdef CTL_IO_DELAY 2737 mtx_lock(&softc->ctl_lock); 2738 2739 if ((delay_info->lun_id > CTL_MAX_LUNS) 2740 || (softc->ctl_luns[delay_info->lun_id] == NULL)) { 2741 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2742 } else { 2743 lun = softc->ctl_luns[delay_info->lun_id]; 2744 mtx_lock(&lun->lun_lock); 2745 2746 delay_info->status = CTL_DELAY_STATUS_OK; 2747 2748 switch (delay_info->delay_type) { 2749 case CTL_DELAY_TYPE_CONT: 2750 break; 2751 case CTL_DELAY_TYPE_ONESHOT: 2752 break; 2753 default: 2754 delay_info->status = 2755 CTL_DELAY_STATUS_INVALID_TYPE; 2756 break; 2757 } 2758 2759 switch (delay_info->delay_loc) { 2760 case CTL_DELAY_LOC_DATAMOVE: 2761 lun->delay_info.datamove_type = 2762 delay_info->delay_type; 2763 lun->delay_info.datamove_delay = 2764 delay_info->delay_secs; 2765 break; 2766 case CTL_DELAY_LOC_DONE: 2767 lun->delay_info.done_type = 2768 delay_info->delay_type; 2769 lun->delay_info.done_delay = 2770 delay_info->delay_secs; 2771 break; 2772 default: 2773 delay_info->status = 2774 CTL_DELAY_STATUS_INVALID_LOC; 2775 break; 2776 } 2777 mtx_unlock(&lun->lun_lock); 2778 } 2779 2780 mtx_unlock(&softc->ctl_lock); 2781 #else 2782 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2783 #endif /* CTL_IO_DELAY */ 2784 break; 2785 } 2786 case CTL_REALSYNC_SET: { 2787 int *syncstate; 2788 2789 syncstate = (int *)addr; 2790 2791 mtx_lock(&softc->ctl_lock); 2792 switch (*syncstate) { 2793 case 0: 2794 softc->flags &= ~CTL_FLAG_REAL_SYNC; 2795 break; 2796 case 1: 2797 softc->flags |= CTL_FLAG_REAL_SYNC; 2798 break; 2799 default: 2800 retval = EINVAL; 2801 break; 2802 } 2803 mtx_unlock(&softc->ctl_lock); 2804 break; 2805 } 2806 case CTL_REALSYNC_GET: { 2807 int *syncstate; 2808 2809 syncstate = (int*)addr; 2810 2811 mtx_lock(&softc->ctl_lock); 2812 if (softc->flags & CTL_FLAG_REAL_SYNC) 2813 *syncstate = 1; 2814 else 2815 *syncstate = 0; 2816 mtx_unlock(&softc->ctl_lock); 2817 2818 break; 2819 } 2820 case CTL_SETSYNC: 2821 case CTL_GETSYNC: { 2822 struct ctl_sync_info *sync_info; 2823 struct ctl_lun *lun; 2824 2825 sync_info = (struct ctl_sync_info *)addr; 2826 2827 mtx_lock(&softc->ctl_lock); 2828 lun = softc->ctl_luns[sync_info->lun_id]; 2829 if (lun == NULL) { 2830 mtx_unlock(&softc->ctl_lock); 2831 sync_info->status = CTL_GS_SYNC_NO_LUN; 2832 } 2833 /* 2834 * Get or set the sync interval. We're not bounds checking 2835 * in the set case, hopefully the user won't do something 2836 * silly. 2837 */ 2838 mtx_lock(&lun->lun_lock); 2839 mtx_unlock(&softc->ctl_lock); 2840 if (cmd == CTL_GETSYNC) 2841 sync_info->sync_interval = lun->sync_interval; 2842 else 2843 lun->sync_interval = sync_info->sync_interval; 2844 mtx_unlock(&lun->lun_lock); 2845 2846 sync_info->status = CTL_GS_SYNC_OK; 2847 2848 break; 2849 } 2850 case CTL_GETSTATS: { 2851 struct ctl_stats *stats; 2852 struct ctl_lun *lun; 2853 int i; 2854 2855 stats = (struct ctl_stats *)addr; 2856 2857 if ((sizeof(struct ctl_lun_io_stats) * softc->num_luns) > 2858 stats->alloc_len) { 2859 stats->status = CTL_SS_NEED_MORE_SPACE; 2860 stats->num_luns = softc->num_luns; 2861 break; 2862 } 2863 /* 2864 * XXX KDM no locking here. If the LUN list changes, 2865 * things can blow up. 2866 */ 2867 for (i = 0, lun = STAILQ_FIRST(&softc->lun_list); lun != NULL; 2868 i++, lun = STAILQ_NEXT(lun, links)) { 2869 retval = copyout(&lun->stats, &stats->lun_stats[i], 2870 sizeof(lun->stats)); 2871 if (retval != 0) 2872 break; 2873 } 2874 stats->num_luns = softc->num_luns; 2875 stats->fill_len = sizeof(struct ctl_lun_io_stats) * 2876 softc->num_luns; 2877 stats->status = CTL_SS_OK; 2878 #ifdef CTL_TIME_IO 2879 stats->flags = CTL_STATS_FLAG_TIME_VALID; 2880 #else 2881 stats->flags = CTL_STATS_FLAG_NONE; 2882 #endif 2883 getnanouptime(&stats->timestamp); 2884 break; 2885 } 2886 case CTL_ERROR_INJECT: { 2887 struct ctl_error_desc *err_desc, *new_err_desc; 2888 struct ctl_lun *lun; 2889 2890 err_desc = (struct ctl_error_desc *)addr; 2891 2892 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2893 M_WAITOK | M_ZERO); 2894 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2895 2896 mtx_lock(&softc->ctl_lock); 2897 lun = softc->ctl_luns[err_desc->lun_id]; 2898 if (lun == NULL) { 2899 mtx_unlock(&softc->ctl_lock); 2900 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2901 __func__, (uintmax_t)err_desc->lun_id); 2902 retval = EINVAL; 2903 break; 2904 } 2905 mtx_lock(&lun->lun_lock); 2906 mtx_unlock(&softc->ctl_lock); 2907 2908 /* 2909 * We could do some checking here to verify the validity 2910 * of the request, but given the complexity of error 2911 * injection requests, the checking logic would be fairly 2912 * complex. 2913 * 2914 * For now, if the request is invalid, it just won't get 2915 * executed and might get deleted. 2916 */ 2917 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2918 2919 /* 2920 * XXX KDM check to make sure the serial number is unique, 2921 * in case we somehow manage to wrap. That shouldn't 2922 * happen for a very long time, but it's the right thing to 2923 * do. 2924 */ 2925 new_err_desc->serial = lun->error_serial; 2926 err_desc->serial = lun->error_serial; 2927 lun->error_serial++; 2928 2929 mtx_unlock(&lun->lun_lock); 2930 break; 2931 } 2932 case CTL_ERROR_INJECT_DELETE: { 2933 struct ctl_error_desc *delete_desc, *desc, *desc2; 2934 struct ctl_lun *lun; 2935 int delete_done; 2936 2937 delete_desc = (struct ctl_error_desc *)addr; 2938 delete_done = 0; 2939 2940 mtx_lock(&softc->ctl_lock); 2941 lun = softc->ctl_luns[delete_desc->lun_id]; 2942 if (lun == NULL) { 2943 mtx_unlock(&softc->ctl_lock); 2944 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 2945 __func__, (uintmax_t)delete_desc->lun_id); 2946 retval = EINVAL; 2947 break; 2948 } 2949 mtx_lock(&lun->lun_lock); 2950 mtx_unlock(&softc->ctl_lock); 2951 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 2952 if (desc->serial != delete_desc->serial) 2953 continue; 2954 2955 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 2956 links); 2957 free(desc, M_CTL); 2958 delete_done = 1; 2959 } 2960 mtx_unlock(&lun->lun_lock); 2961 if (delete_done == 0) { 2962 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 2963 "error serial %ju on LUN %u\n", __func__, 2964 delete_desc->serial, delete_desc->lun_id); 2965 retval = EINVAL; 2966 break; 2967 } 2968 break; 2969 } 2970 case CTL_DUMP_STRUCTS: { 2971 int i, j, k, idx; 2972 struct ctl_port *port; 2973 struct ctl_frontend *fe; 2974 2975 mtx_lock(&softc->ctl_lock); 2976 printf("CTL Persistent Reservation information start:\n"); 2977 for (i = 0; i < CTL_MAX_LUNS; i++) { 2978 struct ctl_lun *lun; 2979 2980 lun = softc->ctl_luns[i]; 2981 2982 if ((lun == NULL) 2983 || ((lun->flags & CTL_LUN_DISABLED) != 0)) 2984 continue; 2985 2986 for (j = 0; j < (CTL_MAX_PORTS * 2); j++) { 2987 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 2988 idx = j * CTL_MAX_INIT_PER_PORT + k; 2989 if (lun->per_res[idx].registered == 0) 2990 continue; 2991 printf(" LUN %d port %d iid %d key " 2992 "%#jx\n", i, j, k, 2993 (uintmax_t)scsi_8btou64( 2994 lun->per_res[idx].res_key.key)); 2995 } 2996 } 2997 } 2998 printf("CTL Persistent Reservation information end\n"); 2999 printf("CTL Ports:\n"); 3000 STAILQ_FOREACH(port, &softc->port_list, links) { 3001 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 3002 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 3003 port->frontend->name, port->port_type, 3004 port->physical_port, port->virtual_port, 3005 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 3006 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3007 if (port->wwpn_iid[j].in_use == 0 && 3008 port->wwpn_iid[j].wwpn == 0 && 3009 port->wwpn_iid[j].name == NULL) 3010 continue; 3011 3012 printf(" iid %u use %d WWPN %#jx '%s'\n", 3013 j, port->wwpn_iid[j].in_use, 3014 (uintmax_t)port->wwpn_iid[j].wwpn, 3015 port->wwpn_iid[j].name); 3016 } 3017 } 3018 printf("CTL Port information end\n"); 3019 mtx_unlock(&softc->ctl_lock); 3020 /* 3021 * XXX KDM calling this without a lock. We'd likely want 3022 * to drop the lock before calling the frontend's dump 3023 * routine anyway. 3024 */ 3025 printf("CTL Frontends:\n"); 3026 STAILQ_FOREACH(fe, &softc->fe_list, links) { 3027 printf(" Frontend '%s'\n", fe->name); 3028 if (fe->fe_dump != NULL) 3029 fe->fe_dump(); 3030 } 3031 printf("CTL Frontend information end\n"); 3032 break; 3033 } 3034 case CTL_LUN_REQ: { 3035 struct ctl_lun_req *lun_req; 3036 struct ctl_backend_driver *backend; 3037 3038 lun_req = (struct ctl_lun_req *)addr; 3039 3040 backend = ctl_backend_find(lun_req->backend); 3041 if (backend == NULL) { 3042 lun_req->status = CTL_LUN_ERROR; 3043 snprintf(lun_req->error_str, 3044 sizeof(lun_req->error_str), 3045 "Backend \"%s\" not found.", 3046 lun_req->backend); 3047 break; 3048 } 3049 if (lun_req->num_be_args > 0) { 3050 lun_req->kern_be_args = ctl_copyin_args( 3051 lun_req->num_be_args, 3052 lun_req->be_args, 3053 lun_req->error_str, 3054 sizeof(lun_req->error_str)); 3055 if (lun_req->kern_be_args == NULL) { 3056 lun_req->status = CTL_LUN_ERROR; 3057 break; 3058 } 3059 } 3060 3061 retval = backend->ioctl(dev, cmd, addr, flag, td); 3062 3063 if (lun_req->num_be_args > 0) { 3064 ctl_copyout_args(lun_req->num_be_args, 3065 lun_req->kern_be_args); 3066 ctl_free_args(lun_req->num_be_args, 3067 lun_req->kern_be_args); 3068 } 3069 break; 3070 } 3071 case CTL_LUN_LIST: { 3072 struct sbuf *sb; 3073 struct ctl_lun *lun; 3074 struct ctl_lun_list *list; 3075 struct ctl_option *opt; 3076 3077 list = (struct ctl_lun_list *)addr; 3078 3079 /* 3080 * Allocate a fixed length sbuf here, based on the length 3081 * of the user's buffer. We could allocate an auto-extending 3082 * buffer, and then tell the user how much larger our 3083 * amount of data is than his buffer, but that presents 3084 * some problems: 3085 * 3086 * 1. The sbuf(9) routines use a blocking malloc, and so 3087 * we can't hold a lock while calling them with an 3088 * auto-extending buffer. 3089 * 3090 * 2. There is not currently a LUN reference counting 3091 * mechanism, outside of outstanding transactions on 3092 * the LUN's OOA queue. So a LUN could go away on us 3093 * while we're getting the LUN number, backend-specific 3094 * information, etc. Thus, given the way things 3095 * currently work, we need to hold the CTL lock while 3096 * grabbing LUN information. 3097 * 3098 * So, from the user's standpoint, the best thing to do is 3099 * allocate what he thinks is a reasonable buffer length, 3100 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3101 * double the buffer length and try again. (And repeat 3102 * that until he succeeds.) 3103 */ 3104 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3105 if (sb == NULL) { 3106 list->status = CTL_LUN_LIST_ERROR; 3107 snprintf(list->error_str, sizeof(list->error_str), 3108 "Unable to allocate %d bytes for LUN list", 3109 list->alloc_len); 3110 break; 3111 } 3112 3113 sbuf_printf(sb, "<ctllunlist>\n"); 3114 3115 mtx_lock(&softc->ctl_lock); 3116 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3117 mtx_lock(&lun->lun_lock); 3118 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3119 (uintmax_t)lun->lun); 3120 3121 /* 3122 * Bail out as soon as we see that we've overfilled 3123 * the buffer. 3124 */ 3125 if (retval != 0) 3126 break; 3127 3128 retval = sbuf_printf(sb, "\t<backend_type>%s" 3129 "</backend_type>\n", 3130 (lun->backend == NULL) ? "none" : 3131 lun->backend->name); 3132 3133 if (retval != 0) 3134 break; 3135 3136 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3137 lun->be_lun->lun_type); 3138 3139 if (retval != 0) 3140 break; 3141 3142 if (lun->backend == NULL) { 3143 retval = sbuf_printf(sb, "</lun>\n"); 3144 if (retval != 0) 3145 break; 3146 continue; 3147 } 3148 3149 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3150 (lun->be_lun->maxlba > 0) ? 3151 lun->be_lun->maxlba + 1 : 0); 3152 3153 if (retval != 0) 3154 break; 3155 3156 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3157 lun->be_lun->blocksize); 3158 3159 if (retval != 0) 3160 break; 3161 3162 retval = sbuf_printf(sb, "\t<serial_number>"); 3163 3164 if (retval != 0) 3165 break; 3166 3167 retval = ctl_sbuf_printf_esc(sb, 3168 lun->be_lun->serial_num); 3169 3170 if (retval != 0) 3171 break; 3172 3173 retval = sbuf_printf(sb, "</serial_number>\n"); 3174 3175 if (retval != 0) 3176 break; 3177 3178 retval = sbuf_printf(sb, "\t<device_id>"); 3179 3180 if (retval != 0) 3181 break; 3182 3183 retval = ctl_sbuf_printf_esc(sb,lun->be_lun->device_id); 3184 3185 if (retval != 0) 3186 break; 3187 3188 retval = sbuf_printf(sb, "</device_id>\n"); 3189 3190 if (retval != 0) 3191 break; 3192 3193 if (lun->backend->lun_info != NULL) { 3194 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3195 if (retval != 0) 3196 break; 3197 } 3198 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3199 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3200 opt->name, opt->value, opt->name); 3201 if (retval != 0) 3202 break; 3203 } 3204 3205 retval = sbuf_printf(sb, "</lun>\n"); 3206 3207 if (retval != 0) 3208 break; 3209 mtx_unlock(&lun->lun_lock); 3210 } 3211 if (lun != NULL) 3212 mtx_unlock(&lun->lun_lock); 3213 mtx_unlock(&softc->ctl_lock); 3214 3215 if ((retval != 0) 3216 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3217 retval = 0; 3218 sbuf_delete(sb); 3219 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3220 snprintf(list->error_str, sizeof(list->error_str), 3221 "Out of space, %d bytes is too small", 3222 list->alloc_len); 3223 break; 3224 } 3225 3226 sbuf_finish(sb); 3227 3228 retval = copyout(sbuf_data(sb), list->lun_xml, 3229 sbuf_len(sb) + 1); 3230 3231 list->fill_len = sbuf_len(sb) + 1; 3232 list->status = CTL_LUN_LIST_OK; 3233 sbuf_delete(sb); 3234 break; 3235 } 3236 case CTL_ISCSI: { 3237 struct ctl_iscsi *ci; 3238 struct ctl_frontend *fe; 3239 3240 ci = (struct ctl_iscsi *)addr; 3241 3242 fe = ctl_frontend_find("iscsi"); 3243 if (fe == NULL) { 3244 ci->status = CTL_ISCSI_ERROR; 3245 snprintf(ci->error_str, sizeof(ci->error_str), 3246 "Frontend \"iscsi\" not found."); 3247 break; 3248 } 3249 3250 retval = fe->ioctl(dev, cmd, addr, flag, td); 3251 break; 3252 } 3253 case CTL_PORT_REQ: { 3254 struct ctl_req *req; 3255 struct ctl_frontend *fe; 3256 3257 req = (struct ctl_req *)addr; 3258 3259 fe = ctl_frontend_find(req->driver); 3260 if (fe == NULL) { 3261 req->status = CTL_LUN_ERROR; 3262 snprintf(req->error_str, sizeof(req->error_str), 3263 "Frontend \"%s\" not found.", req->driver); 3264 break; 3265 } 3266 if (req->num_args > 0) { 3267 req->kern_args = ctl_copyin_args(req->num_args, 3268 req->args, req->error_str, sizeof(req->error_str)); 3269 if (req->kern_args == NULL) { 3270 req->status = CTL_LUN_ERROR; 3271 break; 3272 } 3273 } 3274 3275 retval = fe->ioctl(dev, cmd, addr, flag, td); 3276 3277 if (req->num_args > 0) { 3278 ctl_copyout_args(req->num_args, req->kern_args); 3279 ctl_free_args(req->num_args, req->kern_args); 3280 } 3281 break; 3282 } 3283 case CTL_PORT_LIST: { 3284 struct sbuf *sb; 3285 struct ctl_port *port; 3286 struct ctl_lun_list *list; 3287 struct ctl_option *opt; 3288 3289 list = (struct ctl_lun_list *)addr; 3290 3291 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3292 if (sb == NULL) { 3293 list->status = CTL_LUN_LIST_ERROR; 3294 snprintf(list->error_str, sizeof(list->error_str), 3295 "Unable to allocate %d bytes for LUN list", 3296 list->alloc_len); 3297 break; 3298 } 3299 3300 sbuf_printf(sb, "<ctlportlist>\n"); 3301 3302 mtx_lock(&softc->ctl_lock); 3303 STAILQ_FOREACH(port, &softc->port_list, links) { 3304 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3305 (uintmax_t)port->targ_port); 3306 3307 /* 3308 * Bail out as soon as we see that we've overfilled 3309 * the buffer. 3310 */ 3311 if (retval != 0) 3312 break; 3313 3314 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3315 "</frontend_type>\n", port->frontend->name); 3316 if (retval != 0) 3317 break; 3318 3319 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3320 port->port_type); 3321 if (retval != 0) 3322 break; 3323 3324 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3325 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3326 if (retval != 0) 3327 break; 3328 3329 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3330 port->port_name); 3331 if (retval != 0) 3332 break; 3333 3334 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3335 port->physical_port); 3336 if (retval != 0) 3337 break; 3338 3339 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3340 port->virtual_port); 3341 if (retval != 0) 3342 break; 3343 3344 retval = sbuf_printf(sb, "\t<wwnn>%#jx</wwnn>\n", 3345 (uintmax_t)port->wwnn); 3346 if (retval != 0) 3347 break; 3348 3349 retval = sbuf_printf(sb, "\t<wwpn>%#jx</wwpn>\n", 3350 (uintmax_t)port->wwpn); 3351 if (retval != 0) 3352 break; 3353 3354 if (port->port_info != NULL) { 3355 retval = port->port_info(port->onoff_arg, sb); 3356 if (retval != 0) 3357 break; 3358 } 3359 STAILQ_FOREACH(opt, &port->options, links) { 3360 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3361 opt->name, opt->value, opt->name); 3362 if (retval != 0) 3363 break; 3364 } 3365 3366 retval = sbuf_printf(sb, "</targ_port>\n"); 3367 if (retval != 0) 3368 break; 3369 } 3370 mtx_unlock(&softc->ctl_lock); 3371 3372 if ((retval != 0) 3373 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3374 retval = 0; 3375 sbuf_delete(sb); 3376 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3377 snprintf(list->error_str, sizeof(list->error_str), 3378 "Out of space, %d bytes is too small", 3379 list->alloc_len); 3380 break; 3381 } 3382 3383 sbuf_finish(sb); 3384 3385 retval = copyout(sbuf_data(sb), list->lun_xml, 3386 sbuf_len(sb) + 1); 3387 3388 list->fill_len = sbuf_len(sb) + 1; 3389 list->status = CTL_LUN_LIST_OK; 3390 sbuf_delete(sb); 3391 break; 3392 } 3393 default: { 3394 /* XXX KDM should we fix this? */ 3395 #if 0 3396 struct ctl_backend_driver *backend; 3397 unsigned int type; 3398 int found; 3399 3400 found = 0; 3401 3402 /* 3403 * We encode the backend type as the ioctl type for backend 3404 * ioctls. So parse it out here, and then search for a 3405 * backend of this type. 3406 */ 3407 type = _IOC_TYPE(cmd); 3408 3409 STAILQ_FOREACH(backend, &softc->be_list, links) { 3410 if (backend->type == type) { 3411 found = 1; 3412 break; 3413 } 3414 } 3415 if (found == 0) { 3416 printf("ctl: unknown ioctl command %#lx or backend " 3417 "%d\n", cmd, type); 3418 retval = EINVAL; 3419 break; 3420 } 3421 retval = backend->ioctl(dev, cmd, addr, flag, td); 3422 #endif 3423 retval = ENOTTY; 3424 break; 3425 } 3426 } 3427 return (retval); 3428 } 3429 3430 uint32_t 3431 ctl_get_initindex(struct ctl_nexus *nexus) 3432 { 3433 if (nexus->targ_port < CTL_MAX_PORTS) 3434 return (nexus->initid.id + 3435 (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3436 else 3437 return (nexus->initid.id + 3438 ((nexus->targ_port - CTL_MAX_PORTS) * 3439 CTL_MAX_INIT_PER_PORT)); 3440 } 3441 3442 uint32_t 3443 ctl_get_resindex(struct ctl_nexus *nexus) 3444 { 3445 return (nexus->initid.id + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3446 } 3447 3448 uint32_t 3449 ctl_port_idx(int port_num) 3450 { 3451 if (port_num < CTL_MAX_PORTS) 3452 return(port_num); 3453 else 3454 return(port_num - CTL_MAX_PORTS); 3455 } 3456 3457 static uint32_t 3458 ctl_map_lun(int port_num, uint32_t lun_id) 3459 { 3460 struct ctl_port *port; 3461 3462 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3463 if (port == NULL) 3464 return (UINT32_MAX); 3465 if (port->lun_map == NULL) 3466 return (lun_id); 3467 return (port->lun_map(port->targ_lun_arg, lun_id)); 3468 } 3469 3470 static uint32_t 3471 ctl_map_lun_back(int port_num, uint32_t lun_id) 3472 { 3473 struct ctl_port *port; 3474 uint32_t i; 3475 3476 port = control_softc->ctl_ports[ctl_port_idx(port_num)]; 3477 if (port->lun_map == NULL) 3478 return (lun_id); 3479 for (i = 0; i < CTL_MAX_LUNS; i++) { 3480 if (port->lun_map(port->targ_lun_arg, i) == lun_id) 3481 return (i); 3482 } 3483 return (UINT32_MAX); 3484 } 3485 3486 /* 3487 * Note: This only works for bitmask sizes that are at least 32 bits, and 3488 * that are a power of 2. 3489 */ 3490 int 3491 ctl_ffz(uint32_t *mask, uint32_t size) 3492 { 3493 uint32_t num_chunks, num_pieces; 3494 int i, j; 3495 3496 num_chunks = (size >> 5); 3497 if (num_chunks == 0) 3498 num_chunks++; 3499 num_pieces = ctl_min((sizeof(uint32_t) * 8), size); 3500 3501 for (i = 0; i < num_chunks; i++) { 3502 for (j = 0; j < num_pieces; j++) { 3503 if ((mask[i] & (1 << j)) == 0) 3504 return ((i << 5) + j); 3505 } 3506 } 3507 3508 return (-1); 3509 } 3510 3511 int 3512 ctl_set_mask(uint32_t *mask, uint32_t bit) 3513 { 3514 uint32_t chunk, piece; 3515 3516 chunk = bit >> 5; 3517 piece = bit % (sizeof(uint32_t) * 8); 3518 3519 if ((mask[chunk] & (1 << piece)) != 0) 3520 return (-1); 3521 else 3522 mask[chunk] |= (1 << piece); 3523 3524 return (0); 3525 } 3526 3527 int 3528 ctl_clear_mask(uint32_t *mask, uint32_t bit) 3529 { 3530 uint32_t chunk, piece; 3531 3532 chunk = bit >> 5; 3533 piece = bit % (sizeof(uint32_t) * 8); 3534 3535 if ((mask[chunk] & (1 << piece)) == 0) 3536 return (-1); 3537 else 3538 mask[chunk] &= ~(1 << piece); 3539 3540 return (0); 3541 } 3542 3543 int 3544 ctl_is_set(uint32_t *mask, uint32_t bit) 3545 { 3546 uint32_t chunk, piece; 3547 3548 chunk = bit >> 5; 3549 piece = bit % (sizeof(uint32_t) * 8); 3550 3551 if ((mask[chunk] & (1 << piece)) == 0) 3552 return (0); 3553 else 3554 return (1); 3555 } 3556 3557 #ifdef unused 3558 /* 3559 * The bus, target and lun are optional, they can be filled in later. 3560 * can_wait is used to determine whether we can wait on the malloc or not. 3561 */ 3562 union ctl_io* 3563 ctl_malloc_io(ctl_io_type io_type, uint32_t targ_port, uint32_t targ_target, 3564 uint32_t targ_lun, int can_wait) 3565 { 3566 union ctl_io *io; 3567 3568 if (can_wait) 3569 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_WAITOK); 3570 else 3571 io = (union ctl_io *)malloc(sizeof(*io), M_CTL, M_NOWAIT); 3572 3573 if (io != NULL) { 3574 io->io_hdr.io_type = io_type; 3575 io->io_hdr.targ_port = targ_port; 3576 /* 3577 * XXX KDM this needs to change/go away. We need to move 3578 * to a preallocated pool of ctl_scsiio structures. 3579 */ 3580 io->io_hdr.nexus.targ_target.id = targ_target; 3581 io->io_hdr.nexus.targ_lun = targ_lun; 3582 } 3583 3584 return (io); 3585 } 3586 3587 void 3588 ctl_kfree_io(union ctl_io *io) 3589 { 3590 free(io, M_CTL); 3591 } 3592 #endif /* unused */ 3593 3594 /* 3595 * ctl_softc, pool_type, total_ctl_io are passed in. 3596 * npool is passed out. 3597 */ 3598 int 3599 ctl_pool_create(struct ctl_softc *ctl_softc, ctl_pool_type pool_type, 3600 uint32_t total_ctl_io, struct ctl_io_pool **npool) 3601 { 3602 uint32_t i; 3603 union ctl_io *cur_io, *next_io; 3604 struct ctl_io_pool *pool; 3605 int retval; 3606 3607 retval = 0; 3608 3609 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3610 M_NOWAIT | M_ZERO); 3611 if (pool == NULL) { 3612 retval = ENOMEM; 3613 goto bailout; 3614 } 3615 3616 pool->type = pool_type; 3617 pool->ctl_softc = ctl_softc; 3618 3619 mtx_lock(&ctl_softc->pool_lock); 3620 pool->id = ctl_softc->cur_pool_id++; 3621 mtx_unlock(&ctl_softc->pool_lock); 3622 3623 pool->flags = CTL_POOL_FLAG_NONE; 3624 pool->refcount = 1; /* Reference for validity. */ 3625 STAILQ_INIT(&pool->free_queue); 3626 3627 /* 3628 * XXX KDM other options here: 3629 * - allocate a page at a time 3630 * - allocate one big chunk of memory. 3631 * Page allocation might work well, but would take a little more 3632 * tracking. 3633 */ 3634 for (i = 0; i < total_ctl_io; i++) { 3635 cur_io = (union ctl_io *)malloc(sizeof(*cur_io), M_CTLIO, 3636 M_NOWAIT); 3637 if (cur_io == NULL) { 3638 retval = ENOMEM; 3639 break; 3640 } 3641 cur_io->io_hdr.pool = pool; 3642 STAILQ_INSERT_TAIL(&pool->free_queue, &cur_io->io_hdr, links); 3643 pool->total_ctl_io++; 3644 pool->free_ctl_io++; 3645 } 3646 3647 if (retval != 0) { 3648 for (cur_io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3649 cur_io != NULL; cur_io = next_io) { 3650 next_io = (union ctl_io *)STAILQ_NEXT(&cur_io->io_hdr, 3651 links); 3652 STAILQ_REMOVE(&pool->free_queue, &cur_io->io_hdr, 3653 ctl_io_hdr, links); 3654 free(cur_io, M_CTLIO); 3655 } 3656 3657 free(pool, M_CTL); 3658 goto bailout; 3659 } 3660 mtx_lock(&ctl_softc->pool_lock); 3661 ctl_softc->num_pools++; 3662 STAILQ_INSERT_TAIL(&ctl_softc->io_pools, pool, links); 3663 /* 3664 * Increment our usage count if this is an external consumer, so we 3665 * can't get unloaded until the external consumer (most likely a 3666 * FETD) unloads and frees his pool. 3667 * 3668 * XXX KDM will this increment the caller's module use count, or 3669 * mine? 3670 */ 3671 #if 0 3672 if ((pool_type != CTL_POOL_EMERGENCY) 3673 && (pool_type != CTL_POOL_INTERNAL) 3674 && (pool_type != CTL_POOL_4OTHERSC)) 3675 MOD_INC_USE_COUNT; 3676 #endif 3677 3678 mtx_unlock(&ctl_softc->pool_lock); 3679 3680 *npool = pool; 3681 3682 bailout: 3683 3684 return (retval); 3685 } 3686 3687 static int 3688 ctl_pool_acquire(struct ctl_io_pool *pool) 3689 { 3690 3691 mtx_assert(&pool->ctl_softc->pool_lock, MA_OWNED); 3692 3693 if (pool->flags & CTL_POOL_FLAG_INVALID) 3694 return (EINVAL); 3695 3696 pool->refcount++; 3697 3698 return (0); 3699 } 3700 3701 static void 3702 ctl_pool_release(struct ctl_io_pool *pool) 3703 { 3704 struct ctl_softc *ctl_softc = pool->ctl_softc; 3705 union ctl_io *io; 3706 3707 mtx_assert(&ctl_softc->pool_lock, MA_OWNED); 3708 3709 if (--pool->refcount != 0) 3710 return; 3711 3712 while ((io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue)) != NULL) { 3713 STAILQ_REMOVE(&pool->free_queue, &io->io_hdr, ctl_io_hdr, 3714 links); 3715 free(io, M_CTLIO); 3716 } 3717 3718 STAILQ_REMOVE(&ctl_softc->io_pools, pool, ctl_io_pool, links); 3719 ctl_softc->num_pools--; 3720 3721 /* 3722 * XXX KDM will this decrement the caller's usage count or mine? 3723 */ 3724 #if 0 3725 if ((pool->type != CTL_POOL_EMERGENCY) 3726 && (pool->type != CTL_POOL_INTERNAL) 3727 && (pool->type != CTL_POOL_4OTHERSC)) 3728 MOD_DEC_USE_COUNT; 3729 #endif 3730 3731 free(pool, M_CTL); 3732 } 3733 3734 void 3735 ctl_pool_free(struct ctl_io_pool *pool) 3736 { 3737 struct ctl_softc *ctl_softc; 3738 3739 if (pool == NULL) 3740 return; 3741 3742 ctl_softc = pool->ctl_softc; 3743 mtx_lock(&ctl_softc->pool_lock); 3744 pool->flags |= CTL_POOL_FLAG_INVALID; 3745 ctl_pool_release(pool); 3746 mtx_unlock(&ctl_softc->pool_lock); 3747 } 3748 3749 /* 3750 * This routine does not block (except for spinlocks of course). 3751 * It tries to allocate a ctl_io union from the caller's pool as quickly as 3752 * possible. 3753 */ 3754 union ctl_io * 3755 ctl_alloc_io(void *pool_ref) 3756 { 3757 union ctl_io *io; 3758 struct ctl_softc *ctl_softc; 3759 struct ctl_io_pool *pool, *npool; 3760 struct ctl_io_pool *emergency_pool; 3761 3762 pool = (struct ctl_io_pool *)pool_ref; 3763 3764 if (pool == NULL) { 3765 printf("%s: pool is NULL\n", __func__); 3766 return (NULL); 3767 } 3768 3769 emergency_pool = NULL; 3770 3771 ctl_softc = pool->ctl_softc; 3772 3773 mtx_lock(&ctl_softc->pool_lock); 3774 /* 3775 * First, try to get the io structure from the user's pool. 3776 */ 3777 if (ctl_pool_acquire(pool) == 0) { 3778 io = (union ctl_io *)STAILQ_FIRST(&pool->free_queue); 3779 if (io != NULL) { 3780 STAILQ_REMOVE_HEAD(&pool->free_queue, links); 3781 pool->total_allocated++; 3782 pool->free_ctl_io--; 3783 mtx_unlock(&ctl_softc->pool_lock); 3784 return (io); 3785 } else 3786 ctl_pool_release(pool); 3787 } 3788 /* 3789 * If he doesn't have any io structures left, search for an 3790 * emergency pool and grab one from there. 3791 */ 3792 STAILQ_FOREACH(npool, &ctl_softc->io_pools, links) { 3793 if (npool->type != CTL_POOL_EMERGENCY) 3794 continue; 3795 3796 if (ctl_pool_acquire(npool) != 0) 3797 continue; 3798 3799 emergency_pool = npool; 3800 3801 io = (union ctl_io *)STAILQ_FIRST(&npool->free_queue); 3802 if (io != NULL) { 3803 STAILQ_REMOVE_HEAD(&npool->free_queue, links); 3804 npool->total_allocated++; 3805 npool->free_ctl_io--; 3806 mtx_unlock(&ctl_softc->pool_lock); 3807 return (io); 3808 } else 3809 ctl_pool_release(npool); 3810 } 3811 3812 /* Drop the spinlock before we malloc */ 3813 mtx_unlock(&ctl_softc->pool_lock); 3814 3815 /* 3816 * The emergency pool (if it exists) didn't have one, so try an 3817 * atomic (i.e. nonblocking) malloc and see if we get lucky. 3818 */ 3819 io = (union ctl_io *)malloc(sizeof(*io), M_CTLIO, M_NOWAIT); 3820 if (io != NULL) { 3821 /* 3822 * If the emergency pool exists but is empty, add this 3823 * ctl_io to its list when it gets freed. 3824 */ 3825 if (emergency_pool != NULL) { 3826 mtx_lock(&ctl_softc->pool_lock); 3827 if (ctl_pool_acquire(emergency_pool) == 0) { 3828 io->io_hdr.pool = emergency_pool; 3829 emergency_pool->total_ctl_io++; 3830 /* 3831 * Need to bump this, otherwise 3832 * total_allocated and total_freed won't 3833 * match when we no longer have anything 3834 * outstanding. 3835 */ 3836 emergency_pool->total_allocated++; 3837 } 3838 mtx_unlock(&ctl_softc->pool_lock); 3839 } else 3840 io->io_hdr.pool = NULL; 3841 } 3842 3843 return (io); 3844 } 3845 3846 void 3847 ctl_free_io(union ctl_io *io) 3848 { 3849 if (io == NULL) 3850 return; 3851 3852 /* 3853 * If this ctl_io has a pool, return it to that pool. 3854 */ 3855 if (io->io_hdr.pool != NULL) { 3856 struct ctl_io_pool *pool; 3857 3858 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3859 mtx_lock(&pool->ctl_softc->pool_lock); 3860 io->io_hdr.io_type = 0xff; 3861 STAILQ_INSERT_TAIL(&pool->free_queue, &io->io_hdr, links); 3862 pool->total_freed++; 3863 pool->free_ctl_io++; 3864 ctl_pool_release(pool); 3865 mtx_unlock(&pool->ctl_softc->pool_lock); 3866 } else { 3867 /* 3868 * Otherwise, just free it. We probably malloced it and 3869 * the emergency pool wasn't available. 3870 */ 3871 free(io, M_CTLIO); 3872 } 3873 3874 } 3875 3876 void 3877 ctl_zero_io(union ctl_io *io) 3878 { 3879 void *pool_ref; 3880 3881 if (io == NULL) 3882 return; 3883 3884 /* 3885 * May need to preserve linked list pointers at some point too. 3886 */ 3887 pool_ref = io->io_hdr.pool; 3888 3889 memset(io, 0, sizeof(*io)); 3890 3891 io->io_hdr.pool = pool_ref; 3892 } 3893 3894 /* 3895 * This routine is currently used for internal copies of ctl_ios that need 3896 * to persist for some reason after we've already returned status to the 3897 * FETD. (Thus the flag set.) 3898 * 3899 * XXX XXX 3900 * Note that this makes a blind copy of all fields in the ctl_io, except 3901 * for the pool reference. This includes any memory that has been 3902 * allocated! That memory will no longer be valid after done has been 3903 * called, so this would be VERY DANGEROUS for command that actually does 3904 * any reads or writes. Right now (11/7/2005), this is only used for immediate 3905 * start and stop commands, which don't transfer any data, so this is not a 3906 * problem. If it is used for anything else, the caller would also need to 3907 * allocate data buffer space and this routine would need to be modified to 3908 * copy the data buffer(s) as well. 3909 */ 3910 void 3911 ctl_copy_io(union ctl_io *src, union ctl_io *dest) 3912 { 3913 void *pool_ref; 3914 3915 if ((src == NULL) 3916 || (dest == NULL)) 3917 return; 3918 3919 /* 3920 * May need to preserve linked list pointers at some point too. 3921 */ 3922 pool_ref = dest->io_hdr.pool; 3923 3924 memcpy(dest, src, ctl_min(sizeof(*src), sizeof(*dest))); 3925 3926 dest->io_hdr.pool = pool_ref; 3927 /* 3928 * We need to know that this is an internal copy, and doesn't need 3929 * to get passed back to the FETD that allocated it. 3930 */ 3931 dest->io_hdr.flags |= CTL_FLAG_INT_COPY; 3932 } 3933 3934 #ifdef NEEDTOPORT 3935 static void 3936 ctl_update_power_subpage(struct copan_power_subpage *page) 3937 { 3938 int num_luns, num_partitions, config_type; 3939 struct ctl_softc *softc; 3940 cs_BOOL_t aor_present, shelf_50pct_power; 3941 cs_raidset_personality_t rs_type; 3942 int max_active_luns; 3943 3944 softc = control_softc; 3945 3946 /* subtract out the processor LUN */ 3947 num_luns = softc->num_luns - 1; 3948 /* 3949 * Default to 7 LUNs active, which was the only number we allowed 3950 * in the past. 3951 */ 3952 max_active_luns = 7; 3953 3954 num_partitions = config_GetRsPartitionInfo(); 3955 config_type = config_GetConfigType(); 3956 shelf_50pct_power = config_GetShelfPowerMode(); 3957 aor_present = config_IsAorRsPresent(); 3958 3959 rs_type = ddb_GetRsRaidType(1); 3960 if ((rs_type != CS_RAIDSET_PERSONALITY_RAID5) 3961 && (rs_type != CS_RAIDSET_PERSONALITY_RAID1)) { 3962 EPRINT(0, "Unsupported RS type %d!", rs_type); 3963 } 3964 3965 3966 page->total_luns = num_luns; 3967 3968 switch (config_type) { 3969 case 40: 3970 /* 3971 * In a 40 drive configuration, it doesn't matter what DC 3972 * cards we have, whether we have AOR enabled or not, 3973 * partitioning or not, or what type of RAIDset we have. 3974 * In that scenario, we can power up every LUN we present 3975 * to the user. 3976 */ 3977 max_active_luns = num_luns; 3978 3979 break; 3980 case 64: 3981 if (shelf_50pct_power == CS_FALSE) { 3982 /* 25% power */ 3983 if (aor_present == CS_TRUE) { 3984 if (rs_type == 3985 CS_RAIDSET_PERSONALITY_RAID5) { 3986 max_active_luns = 7; 3987 } else if (rs_type == 3988 CS_RAIDSET_PERSONALITY_RAID1){ 3989 max_active_luns = 14; 3990 } else { 3991 /* XXX KDM now what?? */ 3992 } 3993 } else { 3994 if (rs_type == 3995 CS_RAIDSET_PERSONALITY_RAID5) { 3996 max_active_luns = 8; 3997 } else if (rs_type == 3998 CS_RAIDSET_PERSONALITY_RAID1){ 3999 max_active_luns = 16; 4000 } else { 4001 /* XXX KDM now what?? */ 4002 } 4003 } 4004 } else { 4005 /* 50% power */ 4006 /* 4007 * With 50% power in a 64 drive configuration, we 4008 * can power all LUNs we present. 4009 */ 4010 max_active_luns = num_luns; 4011 } 4012 break; 4013 case 112: 4014 if (shelf_50pct_power == CS_FALSE) { 4015 /* 25% power */ 4016 if (aor_present == CS_TRUE) { 4017 if (rs_type == 4018 CS_RAIDSET_PERSONALITY_RAID5) { 4019 max_active_luns = 7; 4020 } else if (rs_type == 4021 CS_RAIDSET_PERSONALITY_RAID1){ 4022 max_active_luns = 14; 4023 } else { 4024 /* XXX KDM now what?? */ 4025 } 4026 } else { 4027 if (rs_type == 4028 CS_RAIDSET_PERSONALITY_RAID5) { 4029 max_active_luns = 8; 4030 } else if (rs_type == 4031 CS_RAIDSET_PERSONALITY_RAID1){ 4032 max_active_luns = 16; 4033 } else { 4034 /* XXX KDM now what?? */ 4035 } 4036 } 4037 } else { 4038 /* 50% power */ 4039 if (aor_present == CS_TRUE) { 4040 if (rs_type == 4041 CS_RAIDSET_PERSONALITY_RAID5) { 4042 max_active_luns = 14; 4043 } else if (rs_type == 4044 CS_RAIDSET_PERSONALITY_RAID1){ 4045 /* 4046 * We're assuming here that disk 4047 * caching is enabled, and so we're 4048 * able to power up half of each 4049 * LUN, and cache all writes. 4050 */ 4051 max_active_luns = num_luns; 4052 } else { 4053 /* XXX KDM now what?? */ 4054 } 4055 } else { 4056 if (rs_type == 4057 CS_RAIDSET_PERSONALITY_RAID5) { 4058 max_active_luns = 15; 4059 } else if (rs_type == 4060 CS_RAIDSET_PERSONALITY_RAID1){ 4061 max_active_luns = 30; 4062 } else { 4063 /* XXX KDM now what?? */ 4064 } 4065 } 4066 } 4067 break; 4068 default: 4069 /* 4070 * In this case, we have an unknown configuration, so we 4071 * just use the default from above. 4072 */ 4073 break; 4074 } 4075 4076 page->max_active_luns = max_active_luns; 4077 #if 0 4078 printk("%s: total_luns = %d, max_active_luns = %d\n", __func__, 4079 page->total_luns, page->max_active_luns); 4080 #endif 4081 } 4082 #endif /* NEEDTOPORT */ 4083 4084 /* 4085 * This routine could be used in the future to load default and/or saved 4086 * mode page parameters for a particuar lun. 4087 */ 4088 static int 4089 ctl_init_page_index(struct ctl_lun *lun) 4090 { 4091 int i; 4092 struct ctl_page_index *page_index; 4093 struct ctl_softc *softc; 4094 4095 memcpy(&lun->mode_pages.index, page_index_template, 4096 sizeof(page_index_template)); 4097 4098 softc = lun->ctl_softc; 4099 4100 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 4101 4102 page_index = &lun->mode_pages.index[i]; 4103 /* 4104 * If this is a disk-only mode page, there's no point in 4105 * setting it up. For some pages, we have to have some 4106 * basic information about the disk in order to calculate the 4107 * mode page data. 4108 */ 4109 if ((lun->be_lun->lun_type != T_DIRECT) 4110 && (page_index->page_flags & CTL_PAGE_FLAG_DISK_ONLY)) 4111 continue; 4112 4113 switch (page_index->page_code & SMPH_PC_MASK) { 4114 case SMS_FORMAT_DEVICE_PAGE: { 4115 struct scsi_format_page *format_page; 4116 4117 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4118 panic("subpage is incorrect!"); 4119 4120 /* 4121 * Sectors per track are set above. Bytes per 4122 * sector need to be set here on a per-LUN basis. 4123 */ 4124 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 4125 &format_page_default, 4126 sizeof(format_page_default)); 4127 memcpy(&lun->mode_pages.format_page[ 4128 CTL_PAGE_CHANGEABLE], &format_page_changeable, 4129 sizeof(format_page_changeable)); 4130 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 4131 &format_page_default, 4132 sizeof(format_page_default)); 4133 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 4134 &format_page_default, 4135 sizeof(format_page_default)); 4136 4137 format_page = &lun->mode_pages.format_page[ 4138 CTL_PAGE_CURRENT]; 4139 scsi_ulto2b(lun->be_lun->blocksize, 4140 format_page->bytes_per_sector); 4141 4142 format_page = &lun->mode_pages.format_page[ 4143 CTL_PAGE_DEFAULT]; 4144 scsi_ulto2b(lun->be_lun->blocksize, 4145 format_page->bytes_per_sector); 4146 4147 format_page = &lun->mode_pages.format_page[ 4148 CTL_PAGE_SAVED]; 4149 scsi_ulto2b(lun->be_lun->blocksize, 4150 format_page->bytes_per_sector); 4151 4152 page_index->page_data = 4153 (uint8_t *)lun->mode_pages.format_page; 4154 break; 4155 } 4156 case SMS_RIGID_DISK_PAGE: { 4157 struct scsi_rigid_disk_page *rigid_disk_page; 4158 uint32_t sectors_per_cylinder; 4159 uint64_t cylinders; 4160 #ifndef __XSCALE__ 4161 int shift; 4162 #endif /* !__XSCALE__ */ 4163 4164 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4165 panic("invalid subpage value %d", 4166 page_index->subpage); 4167 4168 /* 4169 * Rotation rate and sectors per track are set 4170 * above. We calculate the cylinders here based on 4171 * capacity. Due to the number of heads and 4172 * sectors per track we're using, smaller arrays 4173 * may turn out to have 0 cylinders. Linux and 4174 * FreeBSD don't pay attention to these mode pages 4175 * to figure out capacity, but Solaris does. It 4176 * seems to deal with 0 cylinders just fine, and 4177 * works out a fake geometry based on the capacity. 4178 */ 4179 memcpy(&lun->mode_pages.rigid_disk_page[ 4180 CTL_PAGE_CURRENT], &rigid_disk_page_default, 4181 sizeof(rigid_disk_page_default)); 4182 memcpy(&lun->mode_pages.rigid_disk_page[ 4183 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4184 sizeof(rigid_disk_page_changeable)); 4185 memcpy(&lun->mode_pages.rigid_disk_page[ 4186 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 4187 sizeof(rigid_disk_page_default)); 4188 memcpy(&lun->mode_pages.rigid_disk_page[ 4189 CTL_PAGE_SAVED], &rigid_disk_page_default, 4190 sizeof(rigid_disk_page_default)); 4191 4192 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4193 CTL_DEFAULT_HEADS; 4194 4195 /* 4196 * The divide method here will be more accurate, 4197 * probably, but results in floating point being 4198 * used in the kernel on i386 (__udivdi3()). On the 4199 * XScale, though, __udivdi3() is implemented in 4200 * software. 4201 * 4202 * The shift method for cylinder calculation is 4203 * accurate if sectors_per_cylinder is a power of 4204 * 2. Otherwise it might be slightly off -- you 4205 * might have a bit of a truncation problem. 4206 */ 4207 #ifdef __XSCALE__ 4208 cylinders = (lun->be_lun->maxlba + 1) / 4209 sectors_per_cylinder; 4210 #else 4211 for (shift = 31; shift > 0; shift--) { 4212 if (sectors_per_cylinder & (1 << shift)) 4213 break; 4214 } 4215 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4216 #endif 4217 4218 /* 4219 * We've basically got 3 bytes, or 24 bits for the 4220 * cylinder size in the mode page. If we're over, 4221 * just round down to 2^24. 4222 */ 4223 if (cylinders > 0xffffff) 4224 cylinders = 0xffffff; 4225 4226 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4227 CTL_PAGE_CURRENT]; 4228 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4229 4230 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4231 CTL_PAGE_DEFAULT]; 4232 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4233 4234 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4235 CTL_PAGE_SAVED]; 4236 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4237 4238 page_index->page_data = 4239 (uint8_t *)lun->mode_pages.rigid_disk_page; 4240 break; 4241 } 4242 case SMS_CACHING_PAGE: { 4243 4244 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4245 panic("invalid subpage value %d", 4246 page_index->subpage); 4247 /* 4248 * Defaults should be okay here, no calculations 4249 * needed. 4250 */ 4251 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4252 &caching_page_default, 4253 sizeof(caching_page_default)); 4254 memcpy(&lun->mode_pages.caching_page[ 4255 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4256 sizeof(caching_page_changeable)); 4257 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4258 &caching_page_default, 4259 sizeof(caching_page_default)); 4260 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4261 &caching_page_default, 4262 sizeof(caching_page_default)); 4263 page_index->page_data = 4264 (uint8_t *)lun->mode_pages.caching_page; 4265 break; 4266 } 4267 case SMS_CONTROL_MODE_PAGE: { 4268 4269 if (page_index->subpage != SMS_SUBPAGE_PAGE_0) 4270 panic("invalid subpage value %d", 4271 page_index->subpage); 4272 4273 /* 4274 * Defaults should be okay here, no calculations 4275 * needed. 4276 */ 4277 memcpy(&lun->mode_pages.control_page[CTL_PAGE_CURRENT], 4278 &control_page_default, 4279 sizeof(control_page_default)); 4280 memcpy(&lun->mode_pages.control_page[ 4281 CTL_PAGE_CHANGEABLE], &control_page_changeable, 4282 sizeof(control_page_changeable)); 4283 memcpy(&lun->mode_pages.control_page[CTL_PAGE_DEFAULT], 4284 &control_page_default, 4285 sizeof(control_page_default)); 4286 memcpy(&lun->mode_pages.control_page[CTL_PAGE_SAVED], 4287 &control_page_default, 4288 sizeof(control_page_default)); 4289 page_index->page_data = 4290 (uint8_t *)lun->mode_pages.control_page; 4291 break; 4292 4293 } 4294 case SMS_VENDOR_SPECIFIC_PAGE:{ 4295 switch (page_index->subpage) { 4296 case PWR_SUBPAGE_CODE: { 4297 struct copan_power_subpage *current_page, 4298 *saved_page; 4299 4300 memcpy(&lun->mode_pages.power_subpage[ 4301 CTL_PAGE_CURRENT], 4302 &power_page_default, 4303 sizeof(power_page_default)); 4304 memcpy(&lun->mode_pages.power_subpage[ 4305 CTL_PAGE_CHANGEABLE], 4306 &power_page_changeable, 4307 sizeof(power_page_changeable)); 4308 memcpy(&lun->mode_pages.power_subpage[ 4309 CTL_PAGE_DEFAULT], 4310 &power_page_default, 4311 sizeof(power_page_default)); 4312 memcpy(&lun->mode_pages.power_subpage[ 4313 CTL_PAGE_SAVED], 4314 &power_page_default, 4315 sizeof(power_page_default)); 4316 page_index->page_data = 4317 (uint8_t *)lun->mode_pages.power_subpage; 4318 4319 current_page = (struct copan_power_subpage *) 4320 (page_index->page_data + 4321 (page_index->page_len * 4322 CTL_PAGE_CURRENT)); 4323 saved_page = (struct copan_power_subpage *) 4324 (page_index->page_data + 4325 (page_index->page_len * 4326 CTL_PAGE_SAVED)); 4327 break; 4328 } 4329 case APS_SUBPAGE_CODE: { 4330 struct copan_aps_subpage *current_page, 4331 *saved_page; 4332 4333 // This gets set multiple times but 4334 // it should always be the same. It's 4335 // only done during init so who cares. 4336 index_to_aps_page = i; 4337 4338 memcpy(&lun->mode_pages.aps_subpage[ 4339 CTL_PAGE_CURRENT], 4340 &aps_page_default, 4341 sizeof(aps_page_default)); 4342 memcpy(&lun->mode_pages.aps_subpage[ 4343 CTL_PAGE_CHANGEABLE], 4344 &aps_page_changeable, 4345 sizeof(aps_page_changeable)); 4346 memcpy(&lun->mode_pages.aps_subpage[ 4347 CTL_PAGE_DEFAULT], 4348 &aps_page_default, 4349 sizeof(aps_page_default)); 4350 memcpy(&lun->mode_pages.aps_subpage[ 4351 CTL_PAGE_SAVED], 4352 &aps_page_default, 4353 sizeof(aps_page_default)); 4354 page_index->page_data = 4355 (uint8_t *)lun->mode_pages.aps_subpage; 4356 4357 current_page = (struct copan_aps_subpage *) 4358 (page_index->page_data + 4359 (page_index->page_len * 4360 CTL_PAGE_CURRENT)); 4361 saved_page = (struct copan_aps_subpage *) 4362 (page_index->page_data + 4363 (page_index->page_len * 4364 CTL_PAGE_SAVED)); 4365 break; 4366 } 4367 case DBGCNF_SUBPAGE_CODE: { 4368 struct copan_debugconf_subpage *current_page, 4369 *saved_page; 4370 4371 memcpy(&lun->mode_pages.debugconf_subpage[ 4372 CTL_PAGE_CURRENT], 4373 &debugconf_page_default, 4374 sizeof(debugconf_page_default)); 4375 memcpy(&lun->mode_pages.debugconf_subpage[ 4376 CTL_PAGE_CHANGEABLE], 4377 &debugconf_page_changeable, 4378 sizeof(debugconf_page_changeable)); 4379 memcpy(&lun->mode_pages.debugconf_subpage[ 4380 CTL_PAGE_DEFAULT], 4381 &debugconf_page_default, 4382 sizeof(debugconf_page_default)); 4383 memcpy(&lun->mode_pages.debugconf_subpage[ 4384 CTL_PAGE_SAVED], 4385 &debugconf_page_default, 4386 sizeof(debugconf_page_default)); 4387 page_index->page_data = 4388 (uint8_t *)lun->mode_pages.debugconf_subpage; 4389 4390 current_page = (struct copan_debugconf_subpage *) 4391 (page_index->page_data + 4392 (page_index->page_len * 4393 CTL_PAGE_CURRENT)); 4394 saved_page = (struct copan_debugconf_subpage *) 4395 (page_index->page_data + 4396 (page_index->page_len * 4397 CTL_PAGE_SAVED)); 4398 break; 4399 } 4400 default: 4401 panic("invalid subpage value %d", 4402 page_index->subpage); 4403 break; 4404 } 4405 break; 4406 } 4407 default: 4408 panic("invalid page value %d", 4409 page_index->page_code & SMPH_PC_MASK); 4410 break; 4411 } 4412 } 4413 4414 return (CTL_RETVAL_COMPLETE); 4415 } 4416 4417 /* 4418 * LUN allocation. 4419 * 4420 * Requirements: 4421 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4422 * wants us to allocate the LUN and he can block. 4423 * - ctl_softc is always set 4424 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4425 * 4426 * Returns 0 for success, non-zero (errno) for failure. 4427 */ 4428 static int 4429 ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4430 struct ctl_be_lun *const be_lun, struct ctl_id target_id) 4431 { 4432 struct ctl_lun *nlun, *lun; 4433 struct ctl_port *port; 4434 struct scsi_vpd_id_descriptor *desc; 4435 struct scsi_vpd_id_t10 *t10id; 4436 const char *eui, *naa, *scsiname, *vendor; 4437 int lun_number, i, lun_malloced; 4438 int devidlen, idlen1, idlen2 = 0, len; 4439 4440 if (be_lun == NULL) 4441 return (EINVAL); 4442 4443 /* 4444 * We currently only support Direct Access or Processor LUN types. 4445 */ 4446 switch (be_lun->lun_type) { 4447 case T_DIRECT: 4448 break; 4449 case T_PROCESSOR: 4450 break; 4451 case T_SEQUENTIAL: 4452 case T_CHANGER: 4453 default: 4454 be_lun->lun_config_status(be_lun->be_lun, 4455 CTL_LUN_CONFIG_FAILURE); 4456 break; 4457 } 4458 if (ctl_lun == NULL) { 4459 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4460 lun_malloced = 1; 4461 } else { 4462 lun_malloced = 0; 4463 lun = ctl_lun; 4464 } 4465 4466 memset(lun, 0, sizeof(*lun)); 4467 if (lun_malloced) 4468 lun->flags = CTL_LUN_MALLOCED; 4469 4470 /* Generate LUN ID. */ 4471 devidlen = max(CTL_DEVID_MIN_LEN, 4472 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4473 idlen1 = sizeof(*t10id) + devidlen; 4474 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4475 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4476 if (scsiname != NULL) { 4477 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4478 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4479 } 4480 eui = ctl_get_opt(&be_lun->options, "eui"); 4481 if (eui != NULL) { 4482 len += sizeof(struct scsi_vpd_id_descriptor) + 8; 4483 } 4484 naa = ctl_get_opt(&be_lun->options, "naa"); 4485 if (naa != NULL) { 4486 len += sizeof(struct scsi_vpd_id_descriptor) + 8; 4487 } 4488 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4489 M_CTL, M_WAITOK | M_ZERO); 4490 lun->lun_devid->len = len; 4491 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4492 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4493 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4494 desc->length = idlen1; 4495 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4496 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4497 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4498 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4499 } else { 4500 strncpy(t10id->vendor, vendor, 4501 min(sizeof(t10id->vendor), strlen(vendor))); 4502 } 4503 strncpy((char *)t10id->vendor_spec_id, 4504 (char *)be_lun->device_id, devidlen); 4505 if (scsiname != NULL) { 4506 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4507 desc->length); 4508 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4509 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4510 SVPD_ID_TYPE_SCSI_NAME; 4511 desc->length = idlen2; 4512 strlcpy(desc->identifier, scsiname, idlen2); 4513 } 4514 if (eui != NULL) { 4515 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4516 desc->length); 4517 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4518 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4519 SVPD_ID_TYPE_EUI64; 4520 desc->length = 8; 4521 scsi_u64to8b(strtouq(eui, NULL, 0), desc->identifier); 4522 } 4523 if (naa != NULL) { 4524 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4525 desc->length); 4526 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4527 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4528 SVPD_ID_TYPE_NAA; 4529 desc->length = 8; 4530 scsi_u64to8b(strtouq(naa, NULL, 0), desc->identifier); 4531 } 4532 4533 mtx_lock(&ctl_softc->ctl_lock); 4534 /* 4535 * See if the caller requested a particular LUN number. If so, see 4536 * if it is available. Otherwise, allocate the first available LUN. 4537 */ 4538 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4539 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4540 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4541 mtx_unlock(&ctl_softc->ctl_lock); 4542 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4543 printf("ctl: requested LUN ID %d is higher " 4544 "than CTL_MAX_LUNS - 1 (%d)\n", 4545 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4546 } else { 4547 /* 4548 * XXX KDM return an error, or just assign 4549 * another LUN ID in this case?? 4550 */ 4551 printf("ctl: requested LUN ID %d is already " 4552 "in use\n", be_lun->req_lun_id); 4553 } 4554 if (lun->flags & CTL_LUN_MALLOCED) 4555 free(lun, M_CTL); 4556 be_lun->lun_config_status(be_lun->be_lun, 4557 CTL_LUN_CONFIG_FAILURE); 4558 return (ENOSPC); 4559 } 4560 lun_number = be_lun->req_lun_id; 4561 } else { 4562 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, CTL_MAX_LUNS); 4563 if (lun_number == -1) { 4564 mtx_unlock(&ctl_softc->ctl_lock); 4565 printf("ctl: can't allocate LUN on target %ju, out of " 4566 "LUNs\n", (uintmax_t)target_id.id); 4567 if (lun->flags & CTL_LUN_MALLOCED) 4568 free(lun, M_CTL); 4569 be_lun->lun_config_status(be_lun->be_lun, 4570 CTL_LUN_CONFIG_FAILURE); 4571 return (ENOSPC); 4572 } 4573 } 4574 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4575 4576 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4577 lun->target = target_id; 4578 lun->lun = lun_number; 4579 lun->be_lun = be_lun; 4580 /* 4581 * The processor LUN is always enabled. Disk LUNs come on line 4582 * disabled, and must be enabled by the backend. 4583 */ 4584 lun->flags |= CTL_LUN_DISABLED; 4585 lun->backend = be_lun->be; 4586 be_lun->ctl_lun = lun; 4587 be_lun->lun_id = lun_number; 4588 atomic_add_int(&be_lun->be->num_luns, 1); 4589 if (be_lun->flags & CTL_LUN_FLAG_POWERED_OFF) 4590 lun->flags |= CTL_LUN_STOPPED; 4591 4592 if (be_lun->flags & CTL_LUN_FLAG_INOPERABLE) 4593 lun->flags |= CTL_LUN_INOPERABLE; 4594 4595 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4596 lun->flags |= CTL_LUN_PRIMARY_SC; 4597 4598 lun->ctl_softc = ctl_softc; 4599 TAILQ_INIT(&lun->ooa_queue); 4600 TAILQ_INIT(&lun->blocked_queue); 4601 STAILQ_INIT(&lun->error_list); 4602 ctl_tpc_lun_init(lun); 4603 4604 /* 4605 * Initialize the mode page index. 4606 */ 4607 ctl_init_page_index(lun); 4608 4609 /* 4610 * Set the poweron UA for all initiators on this LUN only. 4611 */ 4612 for (i = 0; i < CTL_MAX_INITIATORS; i++) 4613 lun->pending_ua[i] = CTL_UA_POWERON; 4614 4615 /* 4616 * Now, before we insert this lun on the lun list, set the lun 4617 * inventory changed UA for all other luns. 4618 */ 4619 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4620 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4621 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4622 } 4623 } 4624 4625 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4626 4627 ctl_softc->ctl_luns[lun_number] = lun; 4628 4629 ctl_softc->num_luns++; 4630 4631 /* Setup statistics gathering */ 4632 lun->stats.device_type = be_lun->lun_type; 4633 lun->stats.lun_number = lun_number; 4634 if (lun->stats.device_type == T_DIRECT) 4635 lun->stats.blocksize = be_lun->blocksize; 4636 else 4637 lun->stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4638 for (i = 0;i < CTL_MAX_PORTS;i++) 4639 lun->stats.ports[i].targ_port = i; 4640 4641 mtx_unlock(&ctl_softc->ctl_lock); 4642 4643 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4644 4645 /* 4646 * Run through each registered FETD and bring it online if it isn't 4647 * already. Enable the target ID if it hasn't been enabled, and 4648 * enable this particular LUN. 4649 */ 4650 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4651 int retval; 4652 4653 retval = port->lun_enable(port->targ_lun_arg, target_id,lun_number); 4654 if (retval != 0) { 4655 printf("ctl_alloc_lun: FETD %s port %d returned error " 4656 "%d for lun_enable on target %ju lun %d\n", 4657 port->port_name, port->targ_port, retval, 4658 (uintmax_t)target_id.id, lun_number); 4659 } else 4660 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4661 } 4662 return (0); 4663 } 4664 4665 /* 4666 * Delete a LUN. 4667 * Assumptions: 4668 * - LUN has already been marked invalid and any pending I/O has been taken 4669 * care of. 4670 */ 4671 static int 4672 ctl_free_lun(struct ctl_lun *lun) 4673 { 4674 struct ctl_softc *softc; 4675 #if 0 4676 struct ctl_port *port; 4677 #endif 4678 struct ctl_lun *nlun; 4679 int i; 4680 4681 softc = lun->ctl_softc; 4682 4683 mtx_assert(&softc->ctl_lock, MA_OWNED); 4684 4685 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4686 4687 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4688 4689 softc->ctl_luns[lun->lun] = NULL; 4690 4691 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4692 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4693 4694 softc->num_luns--; 4695 4696 /* 4697 * XXX KDM this scheme only works for a single target/multiple LUN 4698 * setup. It needs to be revamped for a multiple target scheme. 4699 * 4700 * XXX KDM this results in port->lun_disable() getting called twice, 4701 * once when ctl_disable_lun() is called, and a second time here. 4702 * We really need to re-think the LUN disable semantics. There 4703 * should probably be several steps/levels to LUN removal: 4704 * - disable 4705 * - invalidate 4706 * - free 4707 * 4708 * Right now we only have a disable method when communicating to 4709 * the front end ports, at least for individual LUNs. 4710 */ 4711 #if 0 4712 STAILQ_FOREACH(port, &softc->port_list, links) { 4713 int retval; 4714 4715 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4716 lun->lun); 4717 if (retval != 0) { 4718 printf("ctl_free_lun: FETD %s port %d returned error " 4719 "%d for lun_disable on target %ju lun %jd\n", 4720 port->port_name, port->targ_port, retval, 4721 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4722 } 4723 4724 if (STAILQ_FIRST(&softc->lun_list) == NULL) { 4725 port->status &= ~CTL_PORT_STATUS_LUN_ONLINE; 4726 4727 retval = port->targ_disable(port->targ_lun_arg,lun->target); 4728 if (retval != 0) { 4729 printf("ctl_free_lun: FETD %s port %d " 4730 "returned error %d for targ_disable on " 4731 "target %ju\n", port->port_name, 4732 port->targ_port, retval, 4733 (uintmax_t)lun->target.id); 4734 } else 4735 port->status &= ~CTL_PORT_STATUS_TARG_ONLINE; 4736 4737 if ((port->status & CTL_PORT_STATUS_TARG_ONLINE) != 0) 4738 continue; 4739 4740 #if 0 4741 port->port_offline(port->onoff_arg); 4742 port->status &= ~CTL_PORT_STATUS_ONLINE; 4743 #endif 4744 } 4745 } 4746 #endif 4747 4748 /* 4749 * Tell the backend to free resources, if this LUN has a backend. 4750 */ 4751 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4752 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4753 4754 ctl_tpc_lun_shutdown(lun); 4755 mtx_destroy(&lun->lun_lock); 4756 free(lun->lun_devid, M_CTL); 4757 if (lun->flags & CTL_LUN_MALLOCED) 4758 free(lun, M_CTL); 4759 4760 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4761 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 4762 nlun->pending_ua[i] |= CTL_UA_LUN_CHANGE; 4763 } 4764 } 4765 4766 return (0); 4767 } 4768 4769 static void 4770 ctl_create_lun(struct ctl_be_lun *be_lun) 4771 { 4772 struct ctl_softc *ctl_softc; 4773 4774 ctl_softc = control_softc; 4775 4776 /* 4777 * ctl_alloc_lun() should handle all potential failure cases. 4778 */ 4779 ctl_alloc_lun(ctl_softc, NULL, be_lun, ctl_softc->target); 4780 } 4781 4782 int 4783 ctl_add_lun(struct ctl_be_lun *be_lun) 4784 { 4785 struct ctl_softc *ctl_softc = control_softc; 4786 4787 mtx_lock(&ctl_softc->ctl_lock); 4788 STAILQ_INSERT_TAIL(&ctl_softc->pending_lun_queue, be_lun, links); 4789 mtx_unlock(&ctl_softc->ctl_lock); 4790 wakeup(&ctl_softc->pending_lun_queue); 4791 4792 return (0); 4793 } 4794 4795 int 4796 ctl_enable_lun(struct ctl_be_lun *be_lun) 4797 { 4798 struct ctl_softc *ctl_softc; 4799 struct ctl_port *port, *nport; 4800 struct ctl_lun *lun; 4801 int retval; 4802 4803 ctl_softc = control_softc; 4804 4805 lun = (struct ctl_lun *)be_lun->ctl_lun; 4806 4807 mtx_lock(&ctl_softc->ctl_lock); 4808 mtx_lock(&lun->lun_lock); 4809 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4810 /* 4811 * eh? Why did we get called if the LUN is already 4812 * enabled? 4813 */ 4814 mtx_unlock(&lun->lun_lock); 4815 mtx_unlock(&ctl_softc->ctl_lock); 4816 return (0); 4817 } 4818 lun->flags &= ~CTL_LUN_DISABLED; 4819 mtx_unlock(&lun->lun_lock); 4820 4821 for (port = STAILQ_FIRST(&ctl_softc->port_list); port != NULL; port = nport) { 4822 nport = STAILQ_NEXT(port, links); 4823 4824 /* 4825 * Drop the lock while we call the FETD's enable routine. 4826 * This can lead to a callback into CTL (at least in the 4827 * case of the internal initiator frontend. 4828 */ 4829 mtx_unlock(&ctl_softc->ctl_lock); 4830 retval = port->lun_enable(port->targ_lun_arg, lun->target,lun->lun); 4831 mtx_lock(&ctl_softc->ctl_lock); 4832 if (retval != 0) { 4833 printf("%s: FETD %s port %d returned error " 4834 "%d for lun_enable on target %ju lun %jd\n", 4835 __func__, port->port_name, port->targ_port, retval, 4836 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4837 } 4838 #if 0 4839 else { 4840 /* NOTE: TODO: why does lun enable affect port status? */ 4841 port->status |= CTL_PORT_STATUS_LUN_ONLINE; 4842 } 4843 #endif 4844 } 4845 4846 mtx_unlock(&ctl_softc->ctl_lock); 4847 4848 return (0); 4849 } 4850 4851 int 4852 ctl_disable_lun(struct ctl_be_lun *be_lun) 4853 { 4854 struct ctl_softc *ctl_softc; 4855 struct ctl_port *port; 4856 struct ctl_lun *lun; 4857 int retval; 4858 4859 ctl_softc = control_softc; 4860 4861 lun = (struct ctl_lun *)be_lun->ctl_lun; 4862 4863 mtx_lock(&ctl_softc->ctl_lock); 4864 mtx_lock(&lun->lun_lock); 4865 if (lun->flags & CTL_LUN_DISABLED) { 4866 mtx_unlock(&lun->lun_lock); 4867 mtx_unlock(&ctl_softc->ctl_lock); 4868 return (0); 4869 } 4870 lun->flags |= CTL_LUN_DISABLED; 4871 mtx_unlock(&lun->lun_lock); 4872 4873 STAILQ_FOREACH(port, &ctl_softc->port_list, links) { 4874 mtx_unlock(&ctl_softc->ctl_lock); 4875 /* 4876 * Drop the lock before we call the frontend's disable 4877 * routine, to avoid lock order reversals. 4878 * 4879 * XXX KDM what happens if the frontend list changes while 4880 * we're traversing it? It's unlikely, but should be handled. 4881 */ 4882 retval = port->lun_disable(port->targ_lun_arg, lun->target, 4883 lun->lun); 4884 mtx_lock(&ctl_softc->ctl_lock); 4885 if (retval != 0) { 4886 printf("ctl_alloc_lun: FETD %s port %d returned error " 4887 "%d for lun_disable on target %ju lun %jd\n", 4888 port->port_name, port->targ_port, retval, 4889 (uintmax_t)lun->target.id, (intmax_t)lun->lun); 4890 } 4891 } 4892 4893 mtx_unlock(&ctl_softc->ctl_lock); 4894 4895 return (0); 4896 } 4897 4898 int 4899 ctl_start_lun(struct ctl_be_lun *be_lun) 4900 { 4901 struct ctl_softc *ctl_softc; 4902 struct ctl_lun *lun; 4903 4904 ctl_softc = control_softc; 4905 4906 lun = (struct ctl_lun *)be_lun->ctl_lun; 4907 4908 mtx_lock(&lun->lun_lock); 4909 lun->flags &= ~CTL_LUN_STOPPED; 4910 mtx_unlock(&lun->lun_lock); 4911 4912 return (0); 4913 } 4914 4915 int 4916 ctl_stop_lun(struct ctl_be_lun *be_lun) 4917 { 4918 struct ctl_softc *ctl_softc; 4919 struct ctl_lun *lun; 4920 4921 ctl_softc = control_softc; 4922 4923 lun = (struct ctl_lun *)be_lun->ctl_lun; 4924 4925 mtx_lock(&lun->lun_lock); 4926 lun->flags |= CTL_LUN_STOPPED; 4927 mtx_unlock(&lun->lun_lock); 4928 4929 return (0); 4930 } 4931 4932 int 4933 ctl_lun_offline(struct ctl_be_lun *be_lun) 4934 { 4935 struct ctl_softc *ctl_softc; 4936 struct ctl_lun *lun; 4937 4938 ctl_softc = control_softc; 4939 4940 lun = (struct ctl_lun *)be_lun->ctl_lun; 4941 4942 mtx_lock(&lun->lun_lock); 4943 lun->flags |= CTL_LUN_OFFLINE; 4944 mtx_unlock(&lun->lun_lock); 4945 4946 return (0); 4947 } 4948 4949 int 4950 ctl_lun_online(struct ctl_be_lun *be_lun) 4951 { 4952 struct ctl_softc *ctl_softc; 4953 struct ctl_lun *lun; 4954 4955 ctl_softc = control_softc; 4956 4957 lun = (struct ctl_lun *)be_lun->ctl_lun; 4958 4959 mtx_lock(&lun->lun_lock); 4960 lun->flags &= ~CTL_LUN_OFFLINE; 4961 mtx_unlock(&lun->lun_lock); 4962 4963 return (0); 4964 } 4965 4966 int 4967 ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4968 { 4969 struct ctl_softc *ctl_softc; 4970 struct ctl_lun *lun; 4971 4972 ctl_softc = control_softc; 4973 4974 lun = (struct ctl_lun *)be_lun->ctl_lun; 4975 4976 mtx_lock(&lun->lun_lock); 4977 4978 /* 4979 * The LUN needs to be disabled before it can be marked invalid. 4980 */ 4981 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4982 mtx_unlock(&lun->lun_lock); 4983 return (-1); 4984 } 4985 /* 4986 * Mark the LUN invalid. 4987 */ 4988 lun->flags |= CTL_LUN_INVALID; 4989 4990 /* 4991 * If there is nothing in the OOA queue, go ahead and free the LUN. 4992 * If we have something in the OOA queue, we'll free it when the 4993 * last I/O completes. 4994 */ 4995 if (TAILQ_EMPTY(&lun->ooa_queue)) { 4996 mtx_unlock(&lun->lun_lock); 4997 mtx_lock(&ctl_softc->ctl_lock); 4998 ctl_free_lun(lun); 4999 mtx_unlock(&ctl_softc->ctl_lock); 5000 } else 5001 mtx_unlock(&lun->lun_lock); 5002 5003 return (0); 5004 } 5005 5006 int 5007 ctl_lun_inoperable(struct ctl_be_lun *be_lun) 5008 { 5009 struct ctl_softc *ctl_softc; 5010 struct ctl_lun *lun; 5011 5012 ctl_softc = control_softc; 5013 lun = (struct ctl_lun *)be_lun->ctl_lun; 5014 5015 mtx_lock(&lun->lun_lock); 5016 lun->flags |= CTL_LUN_INOPERABLE; 5017 mtx_unlock(&lun->lun_lock); 5018 5019 return (0); 5020 } 5021 5022 int 5023 ctl_lun_operable(struct ctl_be_lun *be_lun) 5024 { 5025 struct ctl_softc *ctl_softc; 5026 struct ctl_lun *lun; 5027 5028 ctl_softc = control_softc; 5029 lun = (struct ctl_lun *)be_lun->ctl_lun; 5030 5031 mtx_lock(&lun->lun_lock); 5032 lun->flags &= ~CTL_LUN_INOPERABLE; 5033 mtx_unlock(&lun->lun_lock); 5034 5035 return (0); 5036 } 5037 5038 int 5039 ctl_lun_power_lock(struct ctl_be_lun *be_lun, struct ctl_nexus *nexus, 5040 int lock) 5041 { 5042 struct ctl_softc *softc; 5043 struct ctl_lun *lun; 5044 struct copan_aps_subpage *current_sp; 5045 struct ctl_page_index *page_index; 5046 int i; 5047 5048 softc = control_softc; 5049 5050 mtx_lock(&softc->ctl_lock); 5051 5052 lun = (struct ctl_lun *)be_lun->ctl_lun; 5053 mtx_lock(&lun->lun_lock); 5054 5055 page_index = NULL; 5056 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 5057 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 5058 APS_PAGE_CODE) 5059 continue; 5060 5061 if (lun->mode_pages.index[i].subpage != APS_SUBPAGE_CODE) 5062 continue; 5063 page_index = &lun->mode_pages.index[i]; 5064 } 5065 5066 if (page_index == NULL) { 5067 mtx_unlock(&lun->lun_lock); 5068 mtx_unlock(&softc->ctl_lock); 5069 printf("%s: APS subpage not found for lun %ju!\n", __func__, 5070 (uintmax_t)lun->lun); 5071 return (1); 5072 } 5073 #if 0 5074 if ((softc->aps_locked_lun != 0) 5075 && (softc->aps_locked_lun != lun->lun)) { 5076 printf("%s: attempt to lock LUN %llu when %llu is already " 5077 "locked\n"); 5078 mtx_unlock(&lun->lun_lock); 5079 mtx_unlock(&softc->ctl_lock); 5080 return (1); 5081 } 5082 #endif 5083 5084 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 5085 (page_index->page_len * CTL_PAGE_CURRENT)); 5086 5087 if (lock != 0) { 5088 current_sp->lock_active = APS_LOCK_ACTIVE; 5089 softc->aps_locked_lun = lun->lun; 5090 } else { 5091 current_sp->lock_active = 0; 5092 softc->aps_locked_lun = 0; 5093 } 5094 5095 5096 /* 5097 * If we're in HA mode, try to send the lock message to the other 5098 * side. 5099 */ 5100 if (ctl_is_single == 0) { 5101 int isc_retval; 5102 union ctl_ha_msg lock_msg; 5103 5104 lock_msg.hdr.nexus = *nexus; 5105 lock_msg.hdr.msg_type = CTL_MSG_APS_LOCK; 5106 if (lock != 0) 5107 lock_msg.aps.lock_flag = 1; 5108 else 5109 lock_msg.aps.lock_flag = 0; 5110 isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &lock_msg, 5111 sizeof(lock_msg), 0); 5112 if (isc_retval > CTL_HA_STATUS_SUCCESS) { 5113 printf("%s: APS (lock=%d) error returned from " 5114 "ctl_ha_msg_send: %d\n", __func__, lock, isc_retval); 5115 mtx_unlock(&lun->lun_lock); 5116 mtx_unlock(&softc->ctl_lock); 5117 return (1); 5118 } 5119 } 5120 5121 mtx_unlock(&lun->lun_lock); 5122 mtx_unlock(&softc->ctl_lock); 5123 5124 return (0); 5125 } 5126 5127 void 5128 ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 5129 { 5130 struct ctl_lun *lun; 5131 struct ctl_softc *softc; 5132 int i; 5133 5134 softc = control_softc; 5135 5136 lun = (struct ctl_lun *)be_lun->ctl_lun; 5137 5138 mtx_lock(&lun->lun_lock); 5139 5140 for (i = 0; i < CTL_MAX_INITIATORS; i++) 5141 lun->pending_ua[i] |= CTL_UA_CAPACITY_CHANGED; 5142 5143 mtx_unlock(&lun->lun_lock); 5144 } 5145 5146 /* 5147 * Backend "memory move is complete" callback for requests that never 5148 * make it down to say RAIDCore's configuration code. 5149 */ 5150 int 5151 ctl_config_move_done(union ctl_io *io) 5152 { 5153 int retval; 5154 5155 retval = CTL_RETVAL_COMPLETE; 5156 5157 5158 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 5159 /* 5160 * XXX KDM this shouldn't happen, but what if it does? 5161 */ 5162 if (io->io_hdr.io_type != CTL_IO_SCSI) 5163 panic("I/O type isn't CTL_IO_SCSI!"); 5164 5165 if ((io->io_hdr.port_status == 0) 5166 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5167 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)) 5168 io->io_hdr.status = CTL_SUCCESS; 5169 else if ((io->io_hdr.port_status != 0) 5170 && ((io->io_hdr.flags & CTL_FLAG_ABORT) == 0) 5171 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE)){ 5172 /* 5173 * For hardware error sense keys, the sense key 5174 * specific value is defined to be a retry count, 5175 * but we use it to pass back an internal FETD 5176 * error code. XXX KDM Hopefully the FETD is only 5177 * using 16 bits for an error code, since that's 5178 * all the space we have in the sks field. 5179 */ 5180 ctl_set_internal_failure(&io->scsiio, 5181 /*sks_valid*/ 1, 5182 /*retry_count*/ 5183 io->io_hdr.port_status); 5184 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5185 free(io->scsiio.kern_data_ptr, M_CTL); 5186 ctl_done(io); 5187 goto bailout; 5188 } 5189 5190 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 5191 || ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 5192 || ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5193 /* 5194 * XXX KDM just assuming a single pointer here, and not a 5195 * S/G list. If we start using S/G lists for config data, 5196 * we'll need to know how to clean them up here as well. 5197 */ 5198 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5199 free(io->scsiio.kern_data_ptr, M_CTL); 5200 /* Hopefully the user has already set the status... */ 5201 ctl_done(io); 5202 } else { 5203 /* 5204 * XXX KDM now we need to continue data movement. Some 5205 * options: 5206 * - call ctl_scsiio() again? We don't do this for data 5207 * writes, because for those at least we know ahead of 5208 * time where the write will go and how long it is. For 5209 * config writes, though, that information is largely 5210 * contained within the write itself, thus we need to 5211 * parse out the data again. 5212 * 5213 * - Call some other function once the data is in? 5214 */ 5215 5216 /* 5217 * XXX KDM call ctl_scsiio() again for now, and check flag 5218 * bits to see whether we're allocated or not. 5219 */ 5220 retval = ctl_scsiio(&io->scsiio); 5221 } 5222 bailout: 5223 return (retval); 5224 } 5225 5226 /* 5227 * This gets called by a backend driver when it is done with a 5228 * data_submit method. 5229 */ 5230 void 5231 ctl_data_submit_done(union ctl_io *io) 5232 { 5233 /* 5234 * If the IO_CONT flag is set, we need to call the supplied 5235 * function to continue processing the I/O, instead of completing 5236 * the I/O just yet. 5237 * 5238 * If there is an error, though, we don't want to keep processing. 5239 * Instead, just send status back to the initiator. 5240 */ 5241 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5242 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5243 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5244 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5245 io->scsiio.io_cont(io); 5246 return; 5247 } 5248 ctl_done(io); 5249 } 5250 5251 /* 5252 * This gets called by a backend driver when it is done with a 5253 * configuration write. 5254 */ 5255 void 5256 ctl_config_write_done(union ctl_io *io) 5257 { 5258 /* 5259 * If the IO_CONT flag is set, we need to call the supplied 5260 * function to continue processing the I/O, instead of completing 5261 * the I/O just yet. 5262 * 5263 * If there is an error, though, we don't want to keep processing. 5264 * Instead, just send status back to the initiator. 5265 */ 5266 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) 5267 && (((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE) 5268 || ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS))) { 5269 io->scsiio.io_cont(io); 5270 return; 5271 } 5272 /* 5273 * Since a configuration write can be done for commands that actually 5274 * have data allocated, like write buffer, and commands that have 5275 * no data, like start/stop unit, we need to check here. 5276 */ 5277 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) 5278 free(io->scsiio.kern_data_ptr, M_CTL); 5279 ctl_done(io); 5280 } 5281 5282 /* 5283 * SCSI release command. 5284 */ 5285 int 5286 ctl_scsi_release(struct ctl_scsiio *ctsio) 5287 { 5288 int length, longid, thirdparty_id, resv_id; 5289 struct ctl_softc *ctl_softc; 5290 struct ctl_lun *lun; 5291 5292 length = 0; 5293 resv_id = 0; 5294 5295 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5296 5297 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5298 ctl_softc = control_softc; 5299 5300 switch (ctsio->cdb[0]) { 5301 case RELEASE_10: { 5302 struct scsi_release_10 *cdb; 5303 5304 cdb = (struct scsi_release_10 *)ctsio->cdb; 5305 5306 if (cdb->byte2 & SR10_LONGID) 5307 longid = 1; 5308 else 5309 thirdparty_id = cdb->thirdparty_id; 5310 5311 resv_id = cdb->resv_id; 5312 length = scsi_2btoul(cdb->length); 5313 break; 5314 } 5315 } 5316 5317 5318 /* 5319 * XXX KDM right now, we only support LUN reservation. We don't 5320 * support 3rd party reservations, or extent reservations, which 5321 * might actually need the parameter list. If we've gotten this 5322 * far, we've got a LUN reservation. Anything else got kicked out 5323 * above. So, according to SPC, ignore the length. 5324 */ 5325 length = 0; 5326 5327 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5328 && (length > 0)) { 5329 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5330 ctsio->kern_data_len = length; 5331 ctsio->kern_total_len = length; 5332 ctsio->kern_data_resid = 0; 5333 ctsio->kern_rel_offset = 0; 5334 ctsio->kern_sg_entries = 0; 5335 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5336 ctsio->be_move_done = ctl_config_move_done; 5337 ctl_datamove((union ctl_io *)ctsio); 5338 5339 return (CTL_RETVAL_COMPLETE); 5340 } 5341 5342 if (length > 0) 5343 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5344 5345 mtx_lock(&lun->lun_lock); 5346 5347 /* 5348 * According to SPC, it is not an error for an intiator to attempt 5349 * to release a reservation on a LUN that isn't reserved, or that 5350 * is reserved by another initiator. The reservation can only be 5351 * released, though, by the initiator who made it or by one of 5352 * several reset type events. 5353 */ 5354 if (lun->flags & CTL_LUN_RESERVED) { 5355 if ((ctsio->io_hdr.nexus.initid.id == lun->rsv_nexus.initid.id) 5356 && (ctsio->io_hdr.nexus.targ_port == lun->rsv_nexus.targ_port) 5357 && (ctsio->io_hdr.nexus.targ_target.id == 5358 lun->rsv_nexus.targ_target.id)) { 5359 lun->flags &= ~CTL_LUN_RESERVED; 5360 } 5361 } 5362 5363 mtx_unlock(&lun->lun_lock); 5364 5365 ctsio->scsi_status = SCSI_STATUS_OK; 5366 ctsio->io_hdr.status = CTL_SUCCESS; 5367 5368 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5369 free(ctsio->kern_data_ptr, M_CTL); 5370 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5371 } 5372 5373 ctl_done((union ctl_io *)ctsio); 5374 return (CTL_RETVAL_COMPLETE); 5375 } 5376 5377 int 5378 ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5379 { 5380 int extent, thirdparty, longid; 5381 int resv_id, length; 5382 uint64_t thirdparty_id; 5383 struct ctl_softc *ctl_softc; 5384 struct ctl_lun *lun; 5385 5386 extent = 0; 5387 thirdparty = 0; 5388 longid = 0; 5389 resv_id = 0; 5390 length = 0; 5391 thirdparty_id = 0; 5392 5393 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5394 5395 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5396 ctl_softc = control_softc; 5397 5398 switch (ctsio->cdb[0]) { 5399 case RESERVE_10: { 5400 struct scsi_reserve_10 *cdb; 5401 5402 cdb = (struct scsi_reserve_10 *)ctsio->cdb; 5403 5404 if (cdb->byte2 & SR10_LONGID) 5405 longid = 1; 5406 else 5407 thirdparty_id = cdb->thirdparty_id; 5408 5409 resv_id = cdb->resv_id; 5410 length = scsi_2btoul(cdb->length); 5411 break; 5412 } 5413 } 5414 5415 /* 5416 * XXX KDM right now, we only support LUN reservation. We don't 5417 * support 3rd party reservations, or extent reservations, which 5418 * might actually need the parameter list. If we've gotten this 5419 * far, we've got a LUN reservation. Anything else got kicked out 5420 * above. So, according to SPC, ignore the length. 5421 */ 5422 length = 0; 5423 5424 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5425 && (length > 0)) { 5426 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5427 ctsio->kern_data_len = length; 5428 ctsio->kern_total_len = length; 5429 ctsio->kern_data_resid = 0; 5430 ctsio->kern_rel_offset = 0; 5431 ctsio->kern_sg_entries = 0; 5432 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5433 ctsio->be_move_done = ctl_config_move_done; 5434 ctl_datamove((union ctl_io *)ctsio); 5435 5436 return (CTL_RETVAL_COMPLETE); 5437 } 5438 5439 if (length > 0) 5440 thirdparty_id = scsi_8btou64(ctsio->kern_data_ptr); 5441 5442 mtx_lock(&lun->lun_lock); 5443 if (lun->flags & CTL_LUN_RESERVED) { 5444 if ((ctsio->io_hdr.nexus.initid.id != lun->rsv_nexus.initid.id) 5445 || (ctsio->io_hdr.nexus.targ_port != lun->rsv_nexus.targ_port) 5446 || (ctsio->io_hdr.nexus.targ_target.id != 5447 lun->rsv_nexus.targ_target.id)) { 5448 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 5449 ctsio->io_hdr.status = CTL_SCSI_ERROR; 5450 goto bailout; 5451 } 5452 } 5453 5454 lun->flags |= CTL_LUN_RESERVED; 5455 lun->rsv_nexus = ctsio->io_hdr.nexus; 5456 5457 ctsio->scsi_status = SCSI_STATUS_OK; 5458 ctsio->io_hdr.status = CTL_SUCCESS; 5459 5460 bailout: 5461 mtx_unlock(&lun->lun_lock); 5462 5463 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5464 free(ctsio->kern_data_ptr, M_CTL); 5465 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5466 } 5467 5468 ctl_done((union ctl_io *)ctsio); 5469 return (CTL_RETVAL_COMPLETE); 5470 } 5471 5472 int 5473 ctl_start_stop(struct ctl_scsiio *ctsio) 5474 { 5475 struct scsi_start_stop_unit *cdb; 5476 struct ctl_lun *lun; 5477 struct ctl_softc *ctl_softc; 5478 int retval; 5479 5480 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5481 5482 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5483 ctl_softc = control_softc; 5484 retval = 0; 5485 5486 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5487 5488 /* 5489 * XXX KDM 5490 * We don't support the immediate bit on a stop unit. In order to 5491 * do that, we would need to code up a way to know that a stop is 5492 * pending, and hold off any new commands until it completes, one 5493 * way or another. Then we could accept or reject those commands 5494 * depending on its status. We would almost need to do the reverse 5495 * of what we do below for an immediate start -- return the copy of 5496 * the ctl_io to the FETD with status to send to the host (and to 5497 * free the copy!) and then free the original I/O once the stop 5498 * actually completes. That way, the OOA queue mechanism can work 5499 * to block commands that shouldn't proceed. Another alternative 5500 * would be to put the copy in the queue in place of the original, 5501 * and return the original back to the caller. That could be 5502 * slightly safer.. 5503 */ 5504 if ((cdb->byte2 & SSS_IMMED) 5505 && ((cdb->how & SSS_START) == 0)) { 5506 ctl_set_invalid_field(ctsio, 5507 /*sks_valid*/ 1, 5508 /*command*/ 1, 5509 /*field*/ 1, 5510 /*bit_valid*/ 1, 5511 /*bit*/ 0); 5512 ctl_done((union ctl_io *)ctsio); 5513 return (CTL_RETVAL_COMPLETE); 5514 } 5515 5516 if ((lun->flags & CTL_LUN_PR_RESERVED) 5517 && ((cdb->how & SSS_START)==0)) { 5518 uint32_t residx; 5519 5520 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5521 if (!lun->per_res[residx].registered 5522 || (lun->pr_res_idx!=residx && lun->res_type < 4)) { 5523 5524 ctl_set_reservation_conflict(ctsio); 5525 ctl_done((union ctl_io *)ctsio); 5526 return (CTL_RETVAL_COMPLETE); 5527 } 5528 } 5529 5530 /* 5531 * If there is no backend on this device, we can't start or stop 5532 * it. In theory we shouldn't get any start/stop commands in the 5533 * first place at this level if the LUN doesn't have a backend. 5534 * That should get stopped by the command decode code. 5535 */ 5536 if (lun->backend == NULL) { 5537 ctl_set_invalid_opcode(ctsio); 5538 ctl_done((union ctl_io *)ctsio); 5539 return (CTL_RETVAL_COMPLETE); 5540 } 5541 5542 /* 5543 * XXX KDM Copan-specific offline behavior. 5544 * Figure out a reasonable way to port this? 5545 */ 5546 #ifdef NEEDTOPORT 5547 mtx_lock(&lun->lun_lock); 5548 5549 if (((cdb->byte2 & SSS_ONOFFLINE) == 0) 5550 && (lun->flags & CTL_LUN_OFFLINE)) { 5551 /* 5552 * If the LUN is offline, and the on/offline bit isn't set, 5553 * reject the start or stop. Otherwise, let it through. 5554 */ 5555 mtx_unlock(&lun->lun_lock); 5556 ctl_set_lun_not_ready(ctsio); 5557 ctl_done((union ctl_io *)ctsio); 5558 } else { 5559 mtx_unlock(&lun->lun_lock); 5560 #endif /* NEEDTOPORT */ 5561 /* 5562 * This could be a start or a stop when we're online, 5563 * or a stop/offline or start/online. A start or stop when 5564 * we're offline is covered in the case above. 5565 */ 5566 /* 5567 * In the non-immediate case, we send the request to 5568 * the backend and return status to the user when 5569 * it is done. 5570 * 5571 * In the immediate case, we allocate a new ctl_io 5572 * to hold a copy of the request, and send that to 5573 * the backend. We then set good status on the 5574 * user's request and return it immediately. 5575 */ 5576 if (cdb->byte2 & SSS_IMMED) { 5577 union ctl_io *new_io; 5578 5579 new_io = ctl_alloc_io(ctsio->io_hdr.pool); 5580 if (new_io == NULL) { 5581 ctl_set_busy(ctsio); 5582 ctl_done((union ctl_io *)ctsio); 5583 } else { 5584 ctl_copy_io((union ctl_io *)ctsio, 5585 new_io); 5586 retval = lun->backend->config_write(new_io); 5587 ctl_set_success(ctsio); 5588 ctl_done((union ctl_io *)ctsio); 5589 } 5590 } else { 5591 retval = lun->backend->config_write( 5592 (union ctl_io *)ctsio); 5593 } 5594 #ifdef NEEDTOPORT 5595 } 5596 #endif 5597 return (retval); 5598 } 5599 5600 /* 5601 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5602 * we don't really do anything with the LBA and length fields if the user 5603 * passes them in. Instead we'll just flush out the cache for the entire 5604 * LUN. 5605 */ 5606 int 5607 ctl_sync_cache(struct ctl_scsiio *ctsio) 5608 { 5609 struct ctl_lun *lun; 5610 struct ctl_softc *ctl_softc; 5611 uint64_t starting_lba; 5612 uint32_t block_count; 5613 int retval; 5614 5615 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5616 5617 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5618 ctl_softc = control_softc; 5619 retval = 0; 5620 5621 switch (ctsio->cdb[0]) { 5622 case SYNCHRONIZE_CACHE: { 5623 struct scsi_sync_cache *cdb; 5624 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5625 5626 starting_lba = scsi_4btoul(cdb->begin_lba); 5627 block_count = scsi_2btoul(cdb->lb_count); 5628 break; 5629 } 5630 case SYNCHRONIZE_CACHE_16: { 5631 struct scsi_sync_cache_16 *cdb; 5632 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5633 5634 starting_lba = scsi_8btou64(cdb->begin_lba); 5635 block_count = scsi_4btoul(cdb->lb_count); 5636 break; 5637 } 5638 default: 5639 ctl_set_invalid_opcode(ctsio); 5640 ctl_done((union ctl_io *)ctsio); 5641 goto bailout; 5642 break; /* NOTREACHED */ 5643 } 5644 5645 /* 5646 * We check the LBA and length, but don't do anything with them. 5647 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5648 * get flushed. This check will just help satisfy anyone who wants 5649 * to see an error for an out of range LBA. 5650 */ 5651 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5652 ctl_set_lba_out_of_range(ctsio); 5653 ctl_done((union ctl_io *)ctsio); 5654 goto bailout; 5655 } 5656 5657 /* 5658 * If this LUN has no backend, we can't flush the cache anyway. 5659 */ 5660 if (lun->backend == NULL) { 5661 ctl_set_invalid_opcode(ctsio); 5662 ctl_done((union ctl_io *)ctsio); 5663 goto bailout; 5664 } 5665 5666 /* 5667 * Check to see whether we're configured to send the SYNCHRONIZE 5668 * CACHE command directly to the back end. 5669 */ 5670 mtx_lock(&lun->lun_lock); 5671 if ((ctl_softc->flags & CTL_FLAG_REAL_SYNC) 5672 && (++(lun->sync_count) >= lun->sync_interval)) { 5673 lun->sync_count = 0; 5674 mtx_unlock(&lun->lun_lock); 5675 retval = lun->backend->config_write((union ctl_io *)ctsio); 5676 } else { 5677 mtx_unlock(&lun->lun_lock); 5678 ctl_set_success(ctsio); 5679 ctl_done((union ctl_io *)ctsio); 5680 } 5681 5682 bailout: 5683 5684 return (retval); 5685 } 5686 5687 int 5688 ctl_format(struct ctl_scsiio *ctsio) 5689 { 5690 struct scsi_format *cdb; 5691 struct ctl_lun *lun; 5692 struct ctl_softc *ctl_softc; 5693 int length, defect_list_len; 5694 5695 CTL_DEBUG_PRINT(("ctl_format\n")); 5696 5697 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5698 ctl_softc = control_softc; 5699 5700 cdb = (struct scsi_format *)ctsio->cdb; 5701 5702 length = 0; 5703 if (cdb->byte2 & SF_FMTDATA) { 5704 if (cdb->byte2 & SF_LONGLIST) 5705 length = sizeof(struct scsi_format_header_long); 5706 else 5707 length = sizeof(struct scsi_format_header_short); 5708 } 5709 5710 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5711 && (length > 0)) { 5712 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5713 ctsio->kern_data_len = length; 5714 ctsio->kern_total_len = length; 5715 ctsio->kern_data_resid = 0; 5716 ctsio->kern_rel_offset = 0; 5717 ctsio->kern_sg_entries = 0; 5718 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5719 ctsio->be_move_done = ctl_config_move_done; 5720 ctl_datamove((union ctl_io *)ctsio); 5721 5722 return (CTL_RETVAL_COMPLETE); 5723 } 5724 5725 defect_list_len = 0; 5726 5727 if (cdb->byte2 & SF_FMTDATA) { 5728 if (cdb->byte2 & SF_LONGLIST) { 5729 struct scsi_format_header_long *header; 5730 5731 header = (struct scsi_format_header_long *) 5732 ctsio->kern_data_ptr; 5733 5734 defect_list_len = scsi_4btoul(header->defect_list_len); 5735 if (defect_list_len != 0) { 5736 ctl_set_invalid_field(ctsio, 5737 /*sks_valid*/ 1, 5738 /*command*/ 0, 5739 /*field*/ 2, 5740 /*bit_valid*/ 0, 5741 /*bit*/ 0); 5742 goto bailout; 5743 } 5744 } else { 5745 struct scsi_format_header_short *header; 5746 5747 header = (struct scsi_format_header_short *) 5748 ctsio->kern_data_ptr; 5749 5750 defect_list_len = scsi_2btoul(header->defect_list_len); 5751 if (defect_list_len != 0) { 5752 ctl_set_invalid_field(ctsio, 5753 /*sks_valid*/ 1, 5754 /*command*/ 0, 5755 /*field*/ 2, 5756 /*bit_valid*/ 0, 5757 /*bit*/ 0); 5758 goto bailout; 5759 } 5760 } 5761 } 5762 5763 /* 5764 * The format command will clear out the "Medium format corrupted" 5765 * status if set by the configuration code. That status is really 5766 * just a way to notify the host that we have lost the media, and 5767 * get them to issue a command that will basically make them think 5768 * they're blowing away the media. 5769 */ 5770 mtx_lock(&lun->lun_lock); 5771 lun->flags &= ~CTL_LUN_INOPERABLE; 5772 mtx_unlock(&lun->lun_lock); 5773 5774 ctsio->scsi_status = SCSI_STATUS_OK; 5775 ctsio->io_hdr.status = CTL_SUCCESS; 5776 bailout: 5777 5778 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5779 free(ctsio->kern_data_ptr, M_CTL); 5780 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5781 } 5782 5783 ctl_done((union ctl_io *)ctsio); 5784 return (CTL_RETVAL_COMPLETE); 5785 } 5786 5787 int 5788 ctl_read_buffer(struct ctl_scsiio *ctsio) 5789 { 5790 struct scsi_read_buffer *cdb; 5791 struct ctl_lun *lun; 5792 int buffer_offset, len; 5793 static uint8_t descr[4]; 5794 static uint8_t echo_descr[4] = { 0 }; 5795 5796 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5797 5798 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5799 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5800 5801 if (lun->flags & CTL_LUN_PR_RESERVED) { 5802 uint32_t residx; 5803 5804 /* 5805 * XXX KDM need a lock here. 5806 */ 5807 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 5808 if ((lun->res_type == SPR_TYPE_EX_AC 5809 && residx != lun->pr_res_idx) 5810 || ((lun->res_type == SPR_TYPE_EX_AC_RO 5811 || lun->res_type == SPR_TYPE_EX_AC_AR) 5812 && !lun->per_res[residx].registered)) { 5813 ctl_set_reservation_conflict(ctsio); 5814 ctl_done((union ctl_io *)ctsio); 5815 return (CTL_RETVAL_COMPLETE); 5816 } 5817 } 5818 5819 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA && 5820 (cdb->byte2 & RWB_MODE) != RWB_MODE_ECHO_DESCR && 5821 (cdb->byte2 & RWB_MODE) != RWB_MODE_DESCR) { 5822 ctl_set_invalid_field(ctsio, 5823 /*sks_valid*/ 1, 5824 /*command*/ 1, 5825 /*field*/ 1, 5826 /*bit_valid*/ 1, 5827 /*bit*/ 4); 5828 ctl_done((union ctl_io *)ctsio); 5829 return (CTL_RETVAL_COMPLETE); 5830 } 5831 5832 len = scsi_3btoul(cdb->length); 5833 buffer_offset = scsi_3btoul(cdb->offset); 5834 5835 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5836 ctl_set_invalid_field(ctsio, 5837 /*sks_valid*/ 1, 5838 /*command*/ 1, 5839 /*field*/ 6, 5840 /*bit_valid*/ 0, 5841 /*bit*/ 0); 5842 ctl_done((union ctl_io *)ctsio); 5843 return (CTL_RETVAL_COMPLETE); 5844 } 5845 5846 if ((cdb->byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5847 descr[0] = 0; 5848 scsi_ulto3b(sizeof(lun->write_buffer), &descr[1]); 5849 ctsio->kern_data_ptr = descr; 5850 len = min(len, sizeof(descr)); 5851 } else if ((cdb->byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5852 ctsio->kern_data_ptr = echo_descr; 5853 len = min(len, sizeof(echo_descr)); 5854 } else 5855 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5856 ctsio->kern_data_len = len; 5857 ctsio->kern_total_len = len; 5858 ctsio->kern_data_resid = 0; 5859 ctsio->kern_rel_offset = 0; 5860 ctsio->kern_sg_entries = 0; 5861 ctsio->be_move_done = ctl_config_move_done; 5862 ctl_datamove((union ctl_io *)ctsio); 5863 5864 return (CTL_RETVAL_COMPLETE); 5865 } 5866 5867 int 5868 ctl_write_buffer(struct ctl_scsiio *ctsio) 5869 { 5870 struct scsi_write_buffer *cdb; 5871 struct ctl_lun *lun; 5872 int buffer_offset, len; 5873 5874 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5875 5876 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5877 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5878 5879 if ((cdb->byte2 & RWB_MODE) != RWB_MODE_DATA) { 5880 ctl_set_invalid_field(ctsio, 5881 /*sks_valid*/ 1, 5882 /*command*/ 1, 5883 /*field*/ 1, 5884 /*bit_valid*/ 1, 5885 /*bit*/ 4); 5886 ctl_done((union ctl_io *)ctsio); 5887 return (CTL_RETVAL_COMPLETE); 5888 } 5889 5890 len = scsi_3btoul(cdb->length); 5891 buffer_offset = scsi_3btoul(cdb->offset); 5892 5893 if (buffer_offset + len > sizeof(lun->write_buffer)) { 5894 ctl_set_invalid_field(ctsio, 5895 /*sks_valid*/ 1, 5896 /*command*/ 1, 5897 /*field*/ 6, 5898 /*bit_valid*/ 0, 5899 /*bit*/ 0); 5900 ctl_done((union ctl_io *)ctsio); 5901 return (CTL_RETVAL_COMPLETE); 5902 } 5903 5904 /* 5905 * If we've got a kernel request that hasn't been malloced yet, 5906 * malloc it and tell the caller the data buffer is here. 5907 */ 5908 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5909 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5910 ctsio->kern_data_len = len; 5911 ctsio->kern_total_len = len; 5912 ctsio->kern_data_resid = 0; 5913 ctsio->kern_rel_offset = 0; 5914 ctsio->kern_sg_entries = 0; 5915 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5916 ctsio->be_move_done = ctl_config_move_done; 5917 ctl_datamove((union ctl_io *)ctsio); 5918 5919 return (CTL_RETVAL_COMPLETE); 5920 } 5921 5922 ctl_done((union ctl_io *)ctsio); 5923 5924 return (CTL_RETVAL_COMPLETE); 5925 } 5926 5927 int 5928 ctl_write_same(struct ctl_scsiio *ctsio) 5929 { 5930 struct ctl_lun *lun; 5931 struct ctl_lba_len_flags *lbalen; 5932 uint64_t lba; 5933 uint32_t num_blocks; 5934 int len, retval; 5935 uint8_t byte2; 5936 5937 retval = CTL_RETVAL_COMPLETE; 5938 5939 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5940 5941 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 5942 5943 switch (ctsio->cdb[0]) { 5944 case WRITE_SAME_10: { 5945 struct scsi_write_same_10 *cdb; 5946 5947 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5948 5949 lba = scsi_4btoul(cdb->addr); 5950 num_blocks = scsi_2btoul(cdb->length); 5951 byte2 = cdb->byte2; 5952 break; 5953 } 5954 case WRITE_SAME_16: { 5955 struct scsi_write_same_16 *cdb; 5956 5957 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5958 5959 lba = scsi_8btou64(cdb->addr); 5960 num_blocks = scsi_4btoul(cdb->length); 5961 byte2 = cdb->byte2; 5962 break; 5963 } 5964 default: 5965 /* 5966 * We got a command we don't support. This shouldn't 5967 * happen, commands should be filtered out above us. 5968 */ 5969 ctl_set_invalid_opcode(ctsio); 5970 ctl_done((union ctl_io *)ctsio); 5971 5972 return (CTL_RETVAL_COMPLETE); 5973 break; /* NOTREACHED */ 5974 } 5975 5976 /* 5977 * The first check is to make sure we're in bounds, the second 5978 * check is to catch wrap-around problems. If the lba + num blocks 5979 * is less than the lba, then we've wrapped around and the block 5980 * range is invalid anyway. 5981 */ 5982 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5983 || ((lba + num_blocks) < lba)) { 5984 ctl_set_lba_out_of_range(ctsio); 5985 ctl_done((union ctl_io *)ctsio); 5986 return (CTL_RETVAL_COMPLETE); 5987 } 5988 5989 /* Zero number of blocks means "to the last logical block" */ 5990 if (num_blocks == 0) { 5991 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5992 ctl_set_invalid_field(ctsio, 5993 /*sks_valid*/ 0, 5994 /*command*/ 1, 5995 /*field*/ 0, 5996 /*bit_valid*/ 0, 5997 /*bit*/ 0); 5998 ctl_done((union ctl_io *)ctsio); 5999 return (CTL_RETVAL_COMPLETE); 6000 } 6001 num_blocks = (lun->be_lun->maxlba + 1) - lba; 6002 } 6003 6004 len = lun->be_lun->blocksize; 6005 6006 /* 6007 * If we've got a kernel request that hasn't been malloced yet, 6008 * malloc it and tell the caller the data buffer is here. 6009 */ 6010 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6011 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6012 ctsio->kern_data_len = len; 6013 ctsio->kern_total_len = len; 6014 ctsio->kern_data_resid = 0; 6015 ctsio->kern_rel_offset = 0; 6016 ctsio->kern_sg_entries = 0; 6017 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6018 ctsio->be_move_done = ctl_config_move_done; 6019 ctl_datamove((union ctl_io *)ctsio); 6020 6021 return (CTL_RETVAL_COMPLETE); 6022 } 6023 6024 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6025 lbalen->lba = lba; 6026 lbalen->len = num_blocks; 6027 lbalen->flags = byte2; 6028 retval = lun->backend->config_write((union ctl_io *)ctsio); 6029 6030 return (retval); 6031 } 6032 6033 int 6034 ctl_unmap(struct ctl_scsiio *ctsio) 6035 { 6036 struct ctl_lun *lun; 6037 struct scsi_unmap *cdb; 6038 struct ctl_ptr_len_flags *ptrlen; 6039 struct scsi_unmap_header *hdr; 6040 struct scsi_unmap_desc *buf, *end; 6041 uint64_t lba; 6042 uint32_t num_blocks; 6043 int len, retval; 6044 uint8_t byte2; 6045 6046 retval = CTL_RETVAL_COMPLETE; 6047 6048 CTL_DEBUG_PRINT(("ctl_unmap\n")); 6049 6050 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6051 cdb = (struct scsi_unmap *)ctsio->cdb; 6052 6053 len = scsi_2btoul(cdb->length); 6054 byte2 = cdb->byte2; 6055 6056 /* 6057 * If we've got a kernel request that hasn't been malloced yet, 6058 * malloc it and tell the caller the data buffer is here. 6059 */ 6060 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6061 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK);; 6062 ctsio->kern_data_len = len; 6063 ctsio->kern_total_len = len; 6064 ctsio->kern_data_resid = 0; 6065 ctsio->kern_rel_offset = 0; 6066 ctsio->kern_sg_entries = 0; 6067 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6068 ctsio->be_move_done = ctl_config_move_done; 6069 ctl_datamove((union ctl_io *)ctsio); 6070 6071 return (CTL_RETVAL_COMPLETE); 6072 } 6073 6074 len = ctsio->kern_total_len - ctsio->kern_data_resid; 6075 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 6076 if (len < sizeof (*hdr) || 6077 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 6078 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 6079 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 6080 ctl_set_invalid_field(ctsio, 6081 /*sks_valid*/ 0, 6082 /*command*/ 0, 6083 /*field*/ 0, 6084 /*bit_valid*/ 0, 6085 /*bit*/ 0); 6086 ctl_done((union ctl_io *)ctsio); 6087 return (CTL_RETVAL_COMPLETE); 6088 } 6089 len = scsi_2btoul(hdr->desc_length); 6090 buf = (struct scsi_unmap_desc *)(hdr + 1); 6091 end = buf + len / sizeof(*buf); 6092 6093 ptrlen = (struct ctl_ptr_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 6094 ptrlen->ptr = (void *)buf; 6095 ptrlen->len = len; 6096 ptrlen->flags = byte2; 6097 6098 for (; buf < end; buf++) { 6099 lba = scsi_8btou64(buf->lba); 6100 num_blocks = scsi_4btoul(buf->length); 6101 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 6102 || ((lba + num_blocks) < lba)) { 6103 ctl_set_lba_out_of_range(ctsio); 6104 ctl_done((union ctl_io *)ctsio); 6105 return (CTL_RETVAL_COMPLETE); 6106 } 6107 } 6108 6109 retval = lun->backend->config_write((union ctl_io *)ctsio); 6110 6111 return (retval); 6112 } 6113 6114 /* 6115 * Note that this function currently doesn't actually do anything inside 6116 * CTL to enforce things if the DQue bit is turned on. 6117 * 6118 * Also note that this function can't be used in the default case, because 6119 * the DQue bit isn't set in the changeable mask for the control mode page 6120 * anyway. This is just here as an example for how to implement a page 6121 * handler, and a placeholder in case we want to allow the user to turn 6122 * tagged queueing on and off. 6123 * 6124 * The D_SENSE bit handling is functional, however, and will turn 6125 * descriptor sense on and off for a given LUN. 6126 */ 6127 int 6128 ctl_control_page_handler(struct ctl_scsiio *ctsio, 6129 struct ctl_page_index *page_index, uint8_t *page_ptr) 6130 { 6131 struct scsi_control_page *current_cp, *saved_cp, *user_cp; 6132 struct ctl_lun *lun; 6133 struct ctl_softc *softc; 6134 int set_ua; 6135 uint32_t initidx; 6136 6137 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6138 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6139 set_ua = 0; 6140 6141 user_cp = (struct scsi_control_page *)page_ptr; 6142 current_cp = (struct scsi_control_page *) 6143 (page_index->page_data + (page_index->page_len * 6144 CTL_PAGE_CURRENT)); 6145 saved_cp = (struct scsi_control_page *) 6146 (page_index->page_data + (page_index->page_len * 6147 CTL_PAGE_SAVED)); 6148 6149 softc = control_softc; 6150 6151 mtx_lock(&lun->lun_lock); 6152 if (((current_cp->rlec & SCP_DSENSE) == 0) 6153 && ((user_cp->rlec & SCP_DSENSE) != 0)) { 6154 /* 6155 * Descriptor sense is currently turned off and the user 6156 * wants to turn it on. 6157 */ 6158 current_cp->rlec |= SCP_DSENSE; 6159 saved_cp->rlec |= SCP_DSENSE; 6160 lun->flags |= CTL_LUN_SENSE_DESC; 6161 set_ua = 1; 6162 } else if (((current_cp->rlec & SCP_DSENSE) != 0) 6163 && ((user_cp->rlec & SCP_DSENSE) == 0)) { 6164 /* 6165 * Descriptor sense is currently turned on, and the user 6166 * wants to turn it off. 6167 */ 6168 current_cp->rlec &= ~SCP_DSENSE; 6169 saved_cp->rlec &= ~SCP_DSENSE; 6170 lun->flags &= ~CTL_LUN_SENSE_DESC; 6171 set_ua = 1; 6172 } 6173 if (current_cp->queue_flags & SCP_QUEUE_DQUE) { 6174 if (user_cp->queue_flags & SCP_QUEUE_DQUE) { 6175 #ifdef NEEDTOPORT 6176 csevent_log(CSC_CTL | CSC_SHELF_SW | 6177 CTL_UNTAG_TO_UNTAG, 6178 csevent_LogType_Trace, 6179 csevent_Severity_Information, 6180 csevent_AlertLevel_Green, 6181 csevent_FRU_Firmware, 6182 csevent_FRU_Unknown, 6183 "Received untagged to untagged transition"); 6184 #endif /* NEEDTOPORT */ 6185 } else { 6186 #ifdef NEEDTOPORT 6187 csevent_log(CSC_CTL | CSC_SHELF_SW | 6188 CTL_UNTAG_TO_TAG, 6189 csevent_LogType_ConfigChange, 6190 csevent_Severity_Information, 6191 csevent_AlertLevel_Green, 6192 csevent_FRU_Firmware, 6193 csevent_FRU_Unknown, 6194 "Received untagged to tagged " 6195 "queueing transition"); 6196 #endif /* NEEDTOPORT */ 6197 6198 current_cp->queue_flags &= ~SCP_QUEUE_DQUE; 6199 saved_cp->queue_flags &= ~SCP_QUEUE_DQUE; 6200 set_ua = 1; 6201 } 6202 } else { 6203 if (user_cp->queue_flags & SCP_QUEUE_DQUE) { 6204 #ifdef NEEDTOPORT 6205 csevent_log(CSC_CTL | CSC_SHELF_SW | 6206 CTL_TAG_TO_UNTAG, 6207 csevent_LogType_ConfigChange, 6208 csevent_Severity_Warning, 6209 csevent_AlertLevel_Yellow, 6210 csevent_FRU_Firmware, 6211 csevent_FRU_Unknown, 6212 "Received tagged queueing to untagged " 6213 "transition"); 6214 #endif /* NEEDTOPORT */ 6215 6216 current_cp->queue_flags |= SCP_QUEUE_DQUE; 6217 saved_cp->queue_flags |= SCP_QUEUE_DQUE; 6218 set_ua = 1; 6219 } else { 6220 #ifdef NEEDTOPORT 6221 csevent_log(CSC_CTL | CSC_SHELF_SW | 6222 CTL_TAG_TO_TAG, 6223 csevent_LogType_Trace, 6224 csevent_Severity_Information, 6225 csevent_AlertLevel_Green, 6226 csevent_FRU_Firmware, 6227 csevent_FRU_Unknown, 6228 "Received tagged queueing to tagged " 6229 "queueing transition"); 6230 #endif /* NEEDTOPORT */ 6231 } 6232 } 6233 if (set_ua != 0) { 6234 int i; 6235 /* 6236 * Let other initiators know that the mode 6237 * parameters for this LUN have changed. 6238 */ 6239 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 6240 if (i == initidx) 6241 continue; 6242 6243 lun->pending_ua[i] |= CTL_UA_MODE_CHANGE; 6244 } 6245 } 6246 mtx_unlock(&lun->lun_lock); 6247 6248 return (0); 6249 } 6250 6251 int 6252 ctl_power_sp_handler(struct ctl_scsiio *ctsio, 6253 struct ctl_page_index *page_index, uint8_t *page_ptr) 6254 { 6255 return (0); 6256 } 6257 6258 int 6259 ctl_power_sp_sense_handler(struct ctl_scsiio *ctsio, 6260 struct ctl_page_index *page_index, int pc) 6261 { 6262 struct copan_power_subpage *page; 6263 6264 page = (struct copan_power_subpage *)page_index->page_data + 6265 (page_index->page_len * pc); 6266 6267 switch (pc) { 6268 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6269 /* 6270 * We don't update the changable bits for this page. 6271 */ 6272 break; 6273 case SMS_PAGE_CTRL_CURRENT >> 6: 6274 case SMS_PAGE_CTRL_DEFAULT >> 6: 6275 case SMS_PAGE_CTRL_SAVED >> 6: 6276 #ifdef NEEDTOPORT 6277 ctl_update_power_subpage(page); 6278 #endif 6279 break; 6280 default: 6281 #ifdef NEEDTOPORT 6282 EPRINT(0, "Invalid PC %d!!", pc); 6283 #endif 6284 break; 6285 } 6286 return (0); 6287 } 6288 6289 6290 int 6291 ctl_aps_sp_handler(struct ctl_scsiio *ctsio, 6292 struct ctl_page_index *page_index, uint8_t *page_ptr) 6293 { 6294 struct copan_aps_subpage *user_sp; 6295 struct copan_aps_subpage *current_sp; 6296 union ctl_modepage_info *modepage_info; 6297 struct ctl_softc *softc; 6298 struct ctl_lun *lun; 6299 int retval; 6300 6301 retval = CTL_RETVAL_COMPLETE; 6302 current_sp = (struct copan_aps_subpage *)(page_index->page_data + 6303 (page_index->page_len * CTL_PAGE_CURRENT)); 6304 softc = control_softc; 6305 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6306 6307 user_sp = (struct copan_aps_subpage *)page_ptr; 6308 6309 modepage_info = (union ctl_modepage_info *) 6310 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6311 6312 modepage_info->header.page_code = page_index->page_code & SMPH_PC_MASK; 6313 modepage_info->header.subpage = page_index->subpage; 6314 modepage_info->aps.lock_active = user_sp->lock_active; 6315 6316 mtx_lock(&softc->ctl_lock); 6317 6318 /* 6319 * If there is a request to lock the LUN and another LUN is locked 6320 * this is an error. If the requested LUN is already locked ignore 6321 * the request. If no LUN is locked attempt to lock it. 6322 * if there is a request to unlock the LUN and the LUN is currently 6323 * locked attempt to unlock it. Otherwise ignore the request. i.e. 6324 * if another LUN is locked or no LUN is locked. 6325 */ 6326 if (user_sp->lock_active & APS_LOCK_ACTIVE) { 6327 if (softc->aps_locked_lun == lun->lun) { 6328 /* 6329 * This LUN is already locked, so we're done. 6330 */ 6331 retval = CTL_RETVAL_COMPLETE; 6332 } else if (softc->aps_locked_lun == 0) { 6333 /* 6334 * No one has the lock, pass the request to the 6335 * backend. 6336 */ 6337 retval = lun->backend->config_write( 6338 (union ctl_io *)ctsio); 6339 } else { 6340 /* 6341 * Someone else has the lock, throw out the request. 6342 */ 6343 ctl_set_already_locked(ctsio); 6344 free(ctsio->kern_data_ptr, M_CTL); 6345 ctl_done((union ctl_io *)ctsio); 6346 6347 /* 6348 * Set the return value so that ctl_do_mode_select() 6349 * won't try to complete the command. We already 6350 * completed it here. 6351 */ 6352 retval = CTL_RETVAL_ERROR; 6353 } 6354 } else if (softc->aps_locked_lun == lun->lun) { 6355 /* 6356 * This LUN is locked, so pass the unlock request to the 6357 * backend. 6358 */ 6359 retval = lun->backend->config_write((union ctl_io *)ctsio); 6360 } 6361 mtx_unlock(&softc->ctl_lock); 6362 6363 return (retval); 6364 } 6365 6366 int 6367 ctl_debugconf_sp_select_handler(struct ctl_scsiio *ctsio, 6368 struct ctl_page_index *page_index, 6369 uint8_t *page_ptr) 6370 { 6371 uint8_t *c; 6372 int i; 6373 6374 c = ((struct copan_debugconf_subpage *)page_ptr)->ctl_time_io_secs; 6375 ctl_time_io_secs = 6376 (c[0] << 8) | 6377 (c[1] << 0) | 6378 0; 6379 CTL_DEBUG_PRINT(("set ctl_time_io_secs to %d\n", ctl_time_io_secs)); 6380 printf("set ctl_time_io_secs to %d\n", ctl_time_io_secs); 6381 printf("page data:"); 6382 for (i=0; i<8; i++) 6383 printf(" %.2x",page_ptr[i]); 6384 printf("\n"); 6385 return (0); 6386 } 6387 6388 int 6389 ctl_debugconf_sp_sense_handler(struct ctl_scsiio *ctsio, 6390 struct ctl_page_index *page_index, 6391 int pc) 6392 { 6393 struct copan_debugconf_subpage *page; 6394 6395 page = (struct copan_debugconf_subpage *)page_index->page_data + 6396 (page_index->page_len * pc); 6397 6398 switch (pc) { 6399 case SMS_PAGE_CTRL_CHANGEABLE >> 6: 6400 case SMS_PAGE_CTRL_DEFAULT >> 6: 6401 case SMS_PAGE_CTRL_SAVED >> 6: 6402 /* 6403 * We don't update the changable or default bits for this page. 6404 */ 6405 break; 6406 case SMS_PAGE_CTRL_CURRENT >> 6: 6407 page->ctl_time_io_secs[0] = ctl_time_io_secs >> 8; 6408 page->ctl_time_io_secs[1] = ctl_time_io_secs >> 0; 6409 break; 6410 default: 6411 #ifdef NEEDTOPORT 6412 EPRINT(0, "Invalid PC %d!!", pc); 6413 #endif /* NEEDTOPORT */ 6414 break; 6415 } 6416 return (0); 6417 } 6418 6419 6420 static int 6421 ctl_do_mode_select(union ctl_io *io) 6422 { 6423 struct scsi_mode_page_header *page_header; 6424 struct ctl_page_index *page_index; 6425 struct ctl_scsiio *ctsio; 6426 int control_dev, page_len; 6427 int page_len_offset, page_len_size; 6428 union ctl_modepage_info *modepage_info; 6429 struct ctl_lun *lun; 6430 int *len_left, *len_used; 6431 int retval, i; 6432 6433 ctsio = &io->scsiio; 6434 page_index = NULL; 6435 page_len = 0; 6436 retval = CTL_RETVAL_COMPLETE; 6437 6438 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6439 6440 if (lun->be_lun->lun_type != T_DIRECT) 6441 control_dev = 1; 6442 else 6443 control_dev = 0; 6444 6445 modepage_info = (union ctl_modepage_info *) 6446 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6447 len_left = &modepage_info->header.len_left; 6448 len_used = &modepage_info->header.len_used; 6449 6450 do_next_page: 6451 6452 page_header = (struct scsi_mode_page_header *) 6453 (ctsio->kern_data_ptr + *len_used); 6454 6455 if (*len_left == 0) { 6456 free(ctsio->kern_data_ptr, M_CTL); 6457 ctl_set_success(ctsio); 6458 ctl_done((union ctl_io *)ctsio); 6459 return (CTL_RETVAL_COMPLETE); 6460 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6461 6462 free(ctsio->kern_data_ptr, M_CTL); 6463 ctl_set_param_len_error(ctsio); 6464 ctl_done((union ctl_io *)ctsio); 6465 return (CTL_RETVAL_COMPLETE); 6466 6467 } else if ((page_header->page_code & SMPH_SPF) 6468 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6469 6470 free(ctsio->kern_data_ptr, M_CTL); 6471 ctl_set_param_len_error(ctsio); 6472 ctl_done((union ctl_io *)ctsio); 6473 return (CTL_RETVAL_COMPLETE); 6474 } 6475 6476 6477 /* 6478 * XXX KDM should we do something with the block descriptor? 6479 */ 6480 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6481 6482 if ((control_dev != 0) 6483 && (lun->mode_pages.index[i].page_flags & 6484 CTL_PAGE_FLAG_DISK_ONLY)) 6485 continue; 6486 6487 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) != 6488 (page_header->page_code & SMPH_PC_MASK)) 6489 continue; 6490 6491 /* 6492 * If neither page has a subpage code, then we've got a 6493 * match. 6494 */ 6495 if (((lun->mode_pages.index[i].page_code & SMPH_SPF) == 0) 6496 && ((page_header->page_code & SMPH_SPF) == 0)) { 6497 page_index = &lun->mode_pages.index[i]; 6498 page_len = page_header->page_length; 6499 break; 6500 } 6501 6502 /* 6503 * If both pages have subpages, then the subpage numbers 6504 * have to match. 6505 */ 6506 if ((lun->mode_pages.index[i].page_code & SMPH_SPF) 6507 && (page_header->page_code & SMPH_SPF)) { 6508 struct scsi_mode_page_header_sp *sph; 6509 6510 sph = (struct scsi_mode_page_header_sp *)page_header; 6511 6512 if (lun->mode_pages.index[i].subpage == 6513 sph->subpage) { 6514 page_index = &lun->mode_pages.index[i]; 6515 page_len = scsi_2btoul(sph->page_length); 6516 break; 6517 } 6518 } 6519 } 6520 6521 /* 6522 * If we couldn't find the page, or if we don't have a mode select 6523 * handler for it, send back an error to the user. 6524 */ 6525 if ((page_index == NULL) 6526 || (page_index->select_handler == NULL)) { 6527 ctl_set_invalid_field(ctsio, 6528 /*sks_valid*/ 1, 6529 /*command*/ 0, 6530 /*field*/ *len_used, 6531 /*bit_valid*/ 0, 6532 /*bit*/ 0); 6533 free(ctsio->kern_data_ptr, M_CTL); 6534 ctl_done((union ctl_io *)ctsio); 6535 return (CTL_RETVAL_COMPLETE); 6536 } 6537 6538 if (page_index->page_code & SMPH_SPF) { 6539 page_len_offset = 2; 6540 page_len_size = 2; 6541 } else { 6542 page_len_size = 1; 6543 page_len_offset = 1; 6544 } 6545 6546 /* 6547 * If the length the initiator gives us isn't the one we specify in 6548 * the mode page header, or if they didn't specify enough data in 6549 * the CDB to avoid truncating this page, kick out the request. 6550 */ 6551 if ((page_len != (page_index->page_len - page_len_offset - 6552 page_len_size)) 6553 || (*len_left < page_index->page_len)) { 6554 6555 6556 ctl_set_invalid_field(ctsio, 6557 /*sks_valid*/ 1, 6558 /*command*/ 0, 6559 /*field*/ *len_used + page_len_offset, 6560 /*bit_valid*/ 0, 6561 /*bit*/ 0); 6562 free(ctsio->kern_data_ptr, M_CTL); 6563 ctl_done((union ctl_io *)ctsio); 6564 return (CTL_RETVAL_COMPLETE); 6565 } 6566 6567 /* 6568 * Run through the mode page, checking to make sure that the bits 6569 * the user changed are actually legal for him to change. 6570 */ 6571 for (i = 0; i < page_index->page_len; i++) { 6572 uint8_t *user_byte, *change_mask, *current_byte; 6573 int bad_bit; 6574 int j; 6575 6576 user_byte = (uint8_t *)page_header + i; 6577 change_mask = page_index->page_data + 6578 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6579 current_byte = page_index->page_data + 6580 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6581 6582 /* 6583 * Check to see whether the user set any bits in this byte 6584 * that he is not allowed to set. 6585 */ 6586 if ((*user_byte & ~(*change_mask)) == 6587 (*current_byte & ~(*change_mask))) 6588 continue; 6589 6590 /* 6591 * Go through bit by bit to determine which one is illegal. 6592 */ 6593 bad_bit = 0; 6594 for (j = 7; j >= 0; j--) { 6595 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6596 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6597 bad_bit = i; 6598 break; 6599 } 6600 } 6601 ctl_set_invalid_field(ctsio, 6602 /*sks_valid*/ 1, 6603 /*command*/ 0, 6604 /*field*/ *len_used + i, 6605 /*bit_valid*/ 1, 6606 /*bit*/ bad_bit); 6607 free(ctsio->kern_data_ptr, M_CTL); 6608 ctl_done((union ctl_io *)ctsio); 6609 return (CTL_RETVAL_COMPLETE); 6610 } 6611 6612 /* 6613 * Decrement these before we call the page handler, since we may 6614 * end up getting called back one way or another before the handler 6615 * returns to this context. 6616 */ 6617 *len_left -= page_index->page_len; 6618 *len_used += page_index->page_len; 6619 6620 retval = page_index->select_handler(ctsio, page_index, 6621 (uint8_t *)page_header); 6622 6623 /* 6624 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6625 * wait until this queued command completes to finish processing 6626 * the mode page. If it returns anything other than 6627 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6628 * already set the sense information, freed the data pointer, and 6629 * completed the io for us. 6630 */ 6631 if (retval != CTL_RETVAL_COMPLETE) 6632 goto bailout_no_done; 6633 6634 /* 6635 * If the initiator sent us more than one page, parse the next one. 6636 */ 6637 if (*len_left > 0) 6638 goto do_next_page; 6639 6640 ctl_set_success(ctsio); 6641 free(ctsio->kern_data_ptr, M_CTL); 6642 ctl_done((union ctl_io *)ctsio); 6643 6644 bailout_no_done: 6645 6646 return (CTL_RETVAL_COMPLETE); 6647 6648 } 6649 6650 int 6651 ctl_mode_select(struct ctl_scsiio *ctsio) 6652 { 6653 int param_len, pf, sp; 6654 int header_size, bd_len; 6655 int len_left, len_used; 6656 struct ctl_page_index *page_index; 6657 struct ctl_lun *lun; 6658 int control_dev, page_len; 6659 union ctl_modepage_info *modepage_info; 6660 int retval; 6661 6662 pf = 0; 6663 sp = 0; 6664 page_len = 0; 6665 len_used = 0; 6666 len_left = 0; 6667 retval = 0; 6668 bd_len = 0; 6669 page_index = NULL; 6670 6671 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6672 6673 if (lun->be_lun->lun_type != T_DIRECT) 6674 control_dev = 1; 6675 else 6676 control_dev = 0; 6677 6678 switch (ctsio->cdb[0]) { 6679 case MODE_SELECT_6: { 6680 struct scsi_mode_select_6 *cdb; 6681 6682 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6683 6684 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6685 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6686 6687 param_len = cdb->length; 6688 header_size = sizeof(struct scsi_mode_header_6); 6689 break; 6690 } 6691 case MODE_SELECT_10: { 6692 struct scsi_mode_select_10 *cdb; 6693 6694 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6695 6696 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6697 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6698 6699 param_len = scsi_2btoul(cdb->length); 6700 header_size = sizeof(struct scsi_mode_header_10); 6701 break; 6702 } 6703 default: 6704 ctl_set_invalid_opcode(ctsio); 6705 ctl_done((union ctl_io *)ctsio); 6706 return (CTL_RETVAL_COMPLETE); 6707 break; /* NOTREACHED */ 6708 } 6709 6710 /* 6711 * From SPC-3: 6712 * "A parameter list length of zero indicates that the Data-Out Buffer 6713 * shall be empty. This condition shall not be considered as an error." 6714 */ 6715 if (param_len == 0) { 6716 ctl_set_success(ctsio); 6717 ctl_done((union ctl_io *)ctsio); 6718 return (CTL_RETVAL_COMPLETE); 6719 } 6720 6721 /* 6722 * Since we'll hit this the first time through, prior to 6723 * allocation, we don't need to free a data buffer here. 6724 */ 6725 if (param_len < header_size) { 6726 ctl_set_param_len_error(ctsio); 6727 ctl_done((union ctl_io *)ctsio); 6728 return (CTL_RETVAL_COMPLETE); 6729 } 6730 6731 /* 6732 * Allocate the data buffer and grab the user's data. In theory, 6733 * we shouldn't have to sanity check the parameter list length here 6734 * because the maximum size is 64K. We should be able to malloc 6735 * that much without too many problems. 6736 */ 6737 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6738 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6739 ctsio->kern_data_len = param_len; 6740 ctsio->kern_total_len = param_len; 6741 ctsio->kern_data_resid = 0; 6742 ctsio->kern_rel_offset = 0; 6743 ctsio->kern_sg_entries = 0; 6744 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6745 ctsio->be_move_done = ctl_config_move_done; 6746 ctl_datamove((union ctl_io *)ctsio); 6747 6748 return (CTL_RETVAL_COMPLETE); 6749 } 6750 6751 switch (ctsio->cdb[0]) { 6752 case MODE_SELECT_6: { 6753 struct scsi_mode_header_6 *mh6; 6754 6755 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6756 bd_len = mh6->blk_desc_len; 6757 break; 6758 } 6759 case MODE_SELECT_10: { 6760 struct scsi_mode_header_10 *mh10; 6761 6762 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6763 bd_len = scsi_2btoul(mh10->blk_desc_len); 6764 break; 6765 } 6766 default: 6767 panic("Invalid CDB type %#x", ctsio->cdb[0]); 6768 break; 6769 } 6770 6771 if (param_len < (header_size + bd_len)) { 6772 free(ctsio->kern_data_ptr, M_CTL); 6773 ctl_set_param_len_error(ctsio); 6774 ctl_done((union ctl_io *)ctsio); 6775 return (CTL_RETVAL_COMPLETE); 6776 } 6777 6778 /* 6779 * Set the IO_CONT flag, so that if this I/O gets passed to 6780 * ctl_config_write_done(), it'll get passed back to 6781 * ctl_do_mode_select() for further processing, or completion if 6782 * we're all done. 6783 */ 6784 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6785 ctsio->io_cont = ctl_do_mode_select; 6786 6787 modepage_info = (union ctl_modepage_info *) 6788 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6789 6790 memset(modepage_info, 0, sizeof(*modepage_info)); 6791 6792 len_left = param_len - header_size - bd_len; 6793 len_used = header_size + bd_len; 6794 6795 modepage_info->header.len_left = len_left; 6796 modepage_info->header.len_used = len_used; 6797 6798 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6799 } 6800 6801 int 6802 ctl_mode_sense(struct ctl_scsiio *ctsio) 6803 { 6804 struct ctl_lun *lun; 6805 int pc, page_code, dbd, llba, subpage; 6806 int alloc_len, page_len, header_len, total_len; 6807 struct scsi_mode_block_descr *block_desc; 6808 struct ctl_page_index *page_index; 6809 int control_dev; 6810 6811 dbd = 0; 6812 llba = 0; 6813 block_desc = NULL; 6814 page_index = NULL; 6815 6816 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6817 6818 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 6819 6820 if (lun->be_lun->lun_type != T_DIRECT) 6821 control_dev = 1; 6822 else 6823 control_dev = 0; 6824 6825 if (lun->flags & CTL_LUN_PR_RESERVED) { 6826 uint32_t residx; 6827 6828 /* 6829 * XXX KDM need a lock here. 6830 */ 6831 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 6832 if ((lun->res_type == SPR_TYPE_EX_AC 6833 && residx != lun->pr_res_idx) 6834 || ((lun->res_type == SPR_TYPE_EX_AC_RO 6835 || lun->res_type == SPR_TYPE_EX_AC_AR) 6836 && !lun->per_res[residx].registered)) { 6837 ctl_set_reservation_conflict(ctsio); 6838 ctl_done((union ctl_io *)ctsio); 6839 return (CTL_RETVAL_COMPLETE); 6840 } 6841 } 6842 6843 switch (ctsio->cdb[0]) { 6844 case MODE_SENSE_6: { 6845 struct scsi_mode_sense_6 *cdb; 6846 6847 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6848 6849 header_len = sizeof(struct scsi_mode_hdr_6); 6850 if (cdb->byte2 & SMS_DBD) 6851 dbd = 1; 6852 else 6853 header_len += sizeof(struct scsi_mode_block_descr); 6854 6855 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6856 page_code = cdb->page & SMS_PAGE_CODE; 6857 subpage = cdb->subpage; 6858 alloc_len = cdb->length; 6859 break; 6860 } 6861 case MODE_SENSE_10: { 6862 struct scsi_mode_sense_10 *cdb; 6863 6864 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6865 6866 header_len = sizeof(struct scsi_mode_hdr_10); 6867 6868 if (cdb->byte2 & SMS_DBD) 6869 dbd = 1; 6870 else 6871 header_len += sizeof(struct scsi_mode_block_descr); 6872 if (cdb->byte2 & SMS10_LLBAA) 6873 llba = 1; 6874 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6875 page_code = cdb->page & SMS_PAGE_CODE; 6876 subpage = cdb->subpage; 6877 alloc_len = scsi_2btoul(cdb->length); 6878 break; 6879 } 6880 default: 6881 ctl_set_invalid_opcode(ctsio); 6882 ctl_done((union ctl_io *)ctsio); 6883 return (CTL_RETVAL_COMPLETE); 6884 break; /* NOTREACHED */ 6885 } 6886 6887 /* 6888 * We have to make a first pass through to calculate the size of 6889 * the pages that match the user's query. Then we allocate enough 6890 * memory to hold it, and actually copy the data into the buffer. 6891 */ 6892 switch (page_code) { 6893 case SMS_ALL_PAGES_PAGE: { 6894 int i; 6895 6896 page_len = 0; 6897 6898 /* 6899 * At the moment, values other than 0 and 0xff here are 6900 * reserved according to SPC-3. 6901 */ 6902 if ((subpage != SMS_SUBPAGE_PAGE_0) 6903 && (subpage != SMS_SUBPAGE_ALL)) { 6904 ctl_set_invalid_field(ctsio, 6905 /*sks_valid*/ 1, 6906 /*command*/ 1, 6907 /*field*/ 3, 6908 /*bit_valid*/ 0, 6909 /*bit*/ 0); 6910 ctl_done((union ctl_io *)ctsio); 6911 return (CTL_RETVAL_COMPLETE); 6912 } 6913 6914 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6915 if ((control_dev != 0) 6916 && (lun->mode_pages.index[i].page_flags & 6917 CTL_PAGE_FLAG_DISK_ONLY)) 6918 continue; 6919 6920 /* 6921 * We don't use this subpage if the user didn't 6922 * request all subpages. 6923 */ 6924 if ((lun->mode_pages.index[i].subpage != 0) 6925 && (subpage == SMS_SUBPAGE_PAGE_0)) 6926 continue; 6927 6928 #if 0 6929 printf("found page %#x len %d\n", 6930 lun->mode_pages.index[i].page_code & 6931 SMPH_PC_MASK, 6932 lun->mode_pages.index[i].page_len); 6933 #endif 6934 page_len += lun->mode_pages.index[i].page_len; 6935 } 6936 break; 6937 } 6938 default: { 6939 int i; 6940 6941 page_len = 0; 6942 6943 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6944 /* Look for the right page code */ 6945 if ((lun->mode_pages.index[i].page_code & 6946 SMPH_PC_MASK) != page_code) 6947 continue; 6948 6949 /* Look for the right subpage or the subpage wildcard*/ 6950 if ((lun->mode_pages.index[i].subpage != subpage) 6951 && (subpage != SMS_SUBPAGE_ALL)) 6952 continue; 6953 6954 /* Make sure the page is supported for this dev type */ 6955 if ((control_dev != 0) 6956 && (lun->mode_pages.index[i].page_flags & 6957 CTL_PAGE_FLAG_DISK_ONLY)) 6958 continue; 6959 6960 #if 0 6961 printf("found page %#x len %d\n", 6962 lun->mode_pages.index[i].page_code & 6963 SMPH_PC_MASK, 6964 lun->mode_pages.index[i].page_len); 6965 #endif 6966 6967 page_len += lun->mode_pages.index[i].page_len; 6968 } 6969 6970 if (page_len == 0) { 6971 ctl_set_invalid_field(ctsio, 6972 /*sks_valid*/ 1, 6973 /*command*/ 1, 6974 /*field*/ 2, 6975 /*bit_valid*/ 1, 6976 /*bit*/ 5); 6977 ctl_done((union ctl_io *)ctsio); 6978 return (CTL_RETVAL_COMPLETE); 6979 } 6980 break; 6981 } 6982 } 6983 6984 total_len = header_len + page_len; 6985 #if 0 6986 printf("header_len = %d, page_len = %d, total_len = %d\n", 6987 header_len, page_len, total_len); 6988 #endif 6989 6990 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6991 ctsio->kern_sg_entries = 0; 6992 ctsio->kern_data_resid = 0; 6993 ctsio->kern_rel_offset = 0; 6994 if (total_len < alloc_len) { 6995 ctsio->residual = alloc_len - total_len; 6996 ctsio->kern_data_len = total_len; 6997 ctsio->kern_total_len = total_len; 6998 } else { 6999 ctsio->residual = 0; 7000 ctsio->kern_data_len = alloc_len; 7001 ctsio->kern_total_len = alloc_len; 7002 } 7003 7004 switch (ctsio->cdb[0]) { 7005 case MODE_SENSE_6: { 7006 struct scsi_mode_hdr_6 *header; 7007 7008 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 7009 7010 header->datalen = ctl_min(total_len - 1, 254); 7011 7012 if (dbd) 7013 header->block_descr_len = 0; 7014 else 7015 header->block_descr_len = 7016 sizeof(struct scsi_mode_block_descr); 7017 block_desc = (struct scsi_mode_block_descr *)&header[1]; 7018 break; 7019 } 7020 case MODE_SENSE_10: { 7021 struct scsi_mode_hdr_10 *header; 7022 int datalen; 7023 7024 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 7025 7026 datalen = ctl_min(total_len - 2, 65533); 7027 scsi_ulto2b(datalen, header->datalen); 7028 if (dbd) 7029 scsi_ulto2b(0, header->block_descr_len); 7030 else 7031 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 7032 header->block_descr_len); 7033 block_desc = (struct scsi_mode_block_descr *)&header[1]; 7034 break; 7035 } 7036 default: 7037 panic("invalid CDB type %#x", ctsio->cdb[0]); 7038 break; /* NOTREACHED */ 7039 } 7040 7041 /* 7042 * If we've got a disk, use its blocksize in the block 7043 * descriptor. Otherwise, just set it to 0. 7044 */ 7045 if (dbd == 0) { 7046 if (control_dev != 0) 7047 scsi_ulto3b(lun->be_lun->blocksize, 7048 block_desc->block_len); 7049 else 7050 scsi_ulto3b(0, block_desc->block_len); 7051 } 7052 7053 switch (page_code) { 7054 case SMS_ALL_PAGES_PAGE: { 7055 int i, data_used; 7056 7057 data_used = header_len; 7058 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7059 struct ctl_page_index *page_index; 7060 7061 page_index = &lun->mode_pages.index[i]; 7062 7063 if ((control_dev != 0) 7064 && (page_index->page_flags & 7065 CTL_PAGE_FLAG_DISK_ONLY)) 7066 continue; 7067 7068 /* 7069 * We don't use this subpage if the user didn't 7070 * request all subpages. We already checked (above) 7071 * to make sure the user only specified a subpage 7072 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 7073 */ 7074 if ((page_index->subpage != 0) 7075 && (subpage == SMS_SUBPAGE_PAGE_0)) 7076 continue; 7077 7078 /* 7079 * Call the handler, if it exists, to update the 7080 * page to the latest values. 7081 */ 7082 if (page_index->sense_handler != NULL) 7083 page_index->sense_handler(ctsio, page_index,pc); 7084 7085 memcpy(ctsio->kern_data_ptr + data_used, 7086 page_index->page_data + 7087 (page_index->page_len * pc), 7088 page_index->page_len); 7089 data_used += page_index->page_len; 7090 } 7091 break; 7092 } 7093 default: { 7094 int i, data_used; 7095 7096 data_used = header_len; 7097 7098 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 7099 struct ctl_page_index *page_index; 7100 7101 page_index = &lun->mode_pages.index[i]; 7102 7103 /* Look for the right page code */ 7104 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 7105 continue; 7106 7107 /* Look for the right subpage or the subpage wildcard*/ 7108 if ((page_index->subpage != subpage) 7109 && (subpage != SMS_SUBPAGE_ALL)) 7110 continue; 7111 7112 /* Make sure the page is supported for this dev type */ 7113 if ((control_dev != 0) 7114 && (page_index->page_flags & 7115 CTL_PAGE_FLAG_DISK_ONLY)) 7116 continue; 7117 7118 /* 7119 * Call the handler, if it exists, to update the 7120 * page to the latest values. 7121 */ 7122 if (page_index->sense_handler != NULL) 7123 page_index->sense_handler(ctsio, page_index,pc); 7124 7125 memcpy(ctsio->kern_data_ptr + data_used, 7126 page_index->page_data + 7127 (page_index->page_len * pc), 7128 page_index->page_len); 7129 data_used += page_index->page_len; 7130 } 7131 break; 7132 } 7133 } 7134 7135 ctsio->scsi_status = SCSI_STATUS_OK; 7136 7137 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7138 ctsio->be_move_done = ctl_config_move_done; 7139 ctl_datamove((union ctl_io *)ctsio); 7140 7141 return (CTL_RETVAL_COMPLETE); 7142 } 7143 7144 int 7145 ctl_read_capacity(struct ctl_scsiio *ctsio) 7146 { 7147 struct scsi_read_capacity *cdb; 7148 struct scsi_read_capacity_data *data; 7149 struct ctl_lun *lun; 7150 uint32_t lba; 7151 7152 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 7153 7154 cdb = (struct scsi_read_capacity *)ctsio->cdb; 7155 7156 lba = scsi_4btoul(cdb->addr); 7157 if (((cdb->pmi & SRC_PMI) == 0) 7158 && (lba != 0)) { 7159 ctl_set_invalid_field(/*ctsio*/ ctsio, 7160 /*sks_valid*/ 1, 7161 /*command*/ 1, 7162 /*field*/ 2, 7163 /*bit_valid*/ 0, 7164 /*bit*/ 0); 7165 ctl_done((union ctl_io *)ctsio); 7166 return (CTL_RETVAL_COMPLETE); 7167 } 7168 7169 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7170 7171 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7172 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 7173 ctsio->residual = 0; 7174 ctsio->kern_data_len = sizeof(*data); 7175 ctsio->kern_total_len = sizeof(*data); 7176 ctsio->kern_data_resid = 0; 7177 ctsio->kern_rel_offset = 0; 7178 ctsio->kern_sg_entries = 0; 7179 7180 /* 7181 * If the maximum LBA is greater than 0xfffffffe, the user must 7182 * issue a SERVICE ACTION IN (16) command, with the read capacity 7183 * serivce action set. 7184 */ 7185 if (lun->be_lun->maxlba > 0xfffffffe) 7186 scsi_ulto4b(0xffffffff, data->addr); 7187 else 7188 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 7189 7190 /* 7191 * XXX KDM this may not be 512 bytes... 7192 */ 7193 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7194 7195 ctsio->scsi_status = SCSI_STATUS_OK; 7196 7197 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7198 ctsio->be_move_done = ctl_config_move_done; 7199 ctl_datamove((union ctl_io *)ctsio); 7200 7201 return (CTL_RETVAL_COMPLETE); 7202 } 7203 7204 int 7205 ctl_read_capacity_16(struct ctl_scsiio *ctsio) 7206 { 7207 struct scsi_read_capacity_16 *cdb; 7208 struct scsi_read_capacity_data_long *data; 7209 struct ctl_lun *lun; 7210 uint64_t lba; 7211 uint32_t alloc_len; 7212 7213 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 7214 7215 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 7216 7217 alloc_len = scsi_4btoul(cdb->alloc_len); 7218 lba = scsi_8btou64(cdb->addr); 7219 7220 if ((cdb->reladr & SRC16_PMI) 7221 && (lba != 0)) { 7222 ctl_set_invalid_field(/*ctsio*/ ctsio, 7223 /*sks_valid*/ 1, 7224 /*command*/ 1, 7225 /*field*/ 2, 7226 /*bit_valid*/ 0, 7227 /*bit*/ 0); 7228 ctl_done((union ctl_io *)ctsio); 7229 return (CTL_RETVAL_COMPLETE); 7230 } 7231 7232 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7233 7234 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7235 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 7236 7237 if (sizeof(*data) < alloc_len) { 7238 ctsio->residual = alloc_len - sizeof(*data); 7239 ctsio->kern_data_len = sizeof(*data); 7240 ctsio->kern_total_len = sizeof(*data); 7241 } else { 7242 ctsio->residual = 0; 7243 ctsio->kern_data_len = alloc_len; 7244 ctsio->kern_total_len = alloc_len; 7245 } 7246 ctsio->kern_data_resid = 0; 7247 ctsio->kern_rel_offset = 0; 7248 ctsio->kern_sg_entries = 0; 7249 7250 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7251 /* XXX KDM this may not be 512 bytes... */ 7252 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7253 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7254 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7255 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7256 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 7257 7258 ctsio->scsi_status = SCSI_STATUS_OK; 7259 7260 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7261 ctsio->be_move_done = ctl_config_move_done; 7262 ctl_datamove((union ctl_io *)ctsio); 7263 7264 return (CTL_RETVAL_COMPLETE); 7265 } 7266 7267 int 7268 ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7269 { 7270 struct scsi_maintenance_in *cdb; 7271 int retval; 7272 int alloc_len, ext, total_len = 0, g, p, pc, pg; 7273 int num_target_port_groups, num_target_ports, single; 7274 struct ctl_lun *lun; 7275 struct ctl_softc *softc; 7276 struct ctl_port *port; 7277 struct scsi_target_group_data *rtg_ptr; 7278 struct scsi_target_group_data_extended *rtg_ext_ptr; 7279 struct scsi_target_port_group_descriptor *tpg_desc; 7280 7281 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7282 7283 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7284 softc = control_softc; 7285 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7286 7287 retval = CTL_RETVAL_COMPLETE; 7288 7289 switch (cdb->byte2 & STG_PDF_MASK) { 7290 case STG_PDF_LENGTH: 7291 ext = 0; 7292 break; 7293 case STG_PDF_EXTENDED: 7294 ext = 1; 7295 break; 7296 default: 7297 ctl_set_invalid_field(/*ctsio*/ ctsio, 7298 /*sks_valid*/ 1, 7299 /*command*/ 1, 7300 /*field*/ 2, 7301 /*bit_valid*/ 1, 7302 /*bit*/ 5); 7303 ctl_done((union ctl_io *)ctsio); 7304 return(retval); 7305 } 7306 7307 single = ctl_is_single; 7308 if (single) 7309 num_target_port_groups = 1; 7310 else 7311 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 7312 num_target_ports = 0; 7313 mtx_lock(&softc->ctl_lock); 7314 STAILQ_FOREACH(port, &softc->port_list, links) { 7315 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7316 continue; 7317 if (ctl_map_lun_back(port->targ_port, lun->lun) >= CTL_MAX_LUNS) 7318 continue; 7319 num_target_ports++; 7320 } 7321 mtx_unlock(&softc->ctl_lock); 7322 7323 if (ext) 7324 total_len = sizeof(struct scsi_target_group_data_extended); 7325 else 7326 total_len = sizeof(struct scsi_target_group_data); 7327 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7328 num_target_port_groups + 7329 sizeof(struct scsi_target_port_descriptor) * 7330 num_target_ports * num_target_port_groups; 7331 7332 alloc_len = scsi_4btoul(cdb->length); 7333 7334 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7335 7336 ctsio->kern_sg_entries = 0; 7337 7338 if (total_len < alloc_len) { 7339 ctsio->residual = alloc_len - total_len; 7340 ctsio->kern_data_len = total_len; 7341 ctsio->kern_total_len = total_len; 7342 } else { 7343 ctsio->residual = 0; 7344 ctsio->kern_data_len = alloc_len; 7345 ctsio->kern_total_len = alloc_len; 7346 } 7347 ctsio->kern_data_resid = 0; 7348 ctsio->kern_rel_offset = 0; 7349 7350 if (ext) { 7351 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7352 ctsio->kern_data_ptr; 7353 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7354 rtg_ext_ptr->format_type = 0x10; 7355 rtg_ext_ptr->implicit_transition_time = 0; 7356 tpg_desc = &rtg_ext_ptr->groups[0]; 7357 } else { 7358 rtg_ptr = (struct scsi_target_group_data *) 7359 ctsio->kern_data_ptr; 7360 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7361 tpg_desc = &rtg_ptr->groups[0]; 7362 } 7363 7364 pg = ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS; 7365 mtx_lock(&softc->ctl_lock); 7366 for (g = 0; g < num_target_port_groups; g++) { 7367 if (g == pg) 7368 tpg_desc->pref_state = TPG_PRIMARY | 7369 TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7370 else 7371 tpg_desc->pref_state = 7372 TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7373 tpg_desc->support = TPG_AO_SUP; 7374 if (!single) 7375 tpg_desc->support |= TPG_AN_SUP; 7376 scsi_ulto2b(g + 1, tpg_desc->target_port_group); 7377 tpg_desc->status = TPG_IMPLICIT; 7378 pc = 0; 7379 STAILQ_FOREACH(port, &softc->port_list, links) { 7380 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7381 continue; 7382 if (ctl_map_lun_back(port->targ_port, lun->lun) >= 7383 CTL_MAX_LUNS) 7384 continue; 7385 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 7386 scsi_ulto2b(p, tpg_desc->descriptors[pc]. 7387 relative_target_port_identifier); 7388 pc++; 7389 } 7390 tpg_desc->target_port_count = pc; 7391 tpg_desc = (struct scsi_target_port_group_descriptor *) 7392 &tpg_desc->descriptors[pc]; 7393 } 7394 mtx_unlock(&softc->ctl_lock); 7395 7396 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7397 ctsio->be_move_done = ctl_config_move_done; 7398 7399 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7400 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7401 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7402 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7403 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7404 7405 ctl_datamove((union ctl_io *)ctsio); 7406 return(retval); 7407 } 7408 7409 int 7410 ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7411 { 7412 struct ctl_lun *lun; 7413 struct scsi_report_supported_opcodes *cdb; 7414 const struct ctl_cmd_entry *entry, *sentry; 7415 struct scsi_report_supported_opcodes_all *all; 7416 struct scsi_report_supported_opcodes_descr *descr; 7417 struct scsi_report_supported_opcodes_one *one; 7418 int retval; 7419 int alloc_len, total_len; 7420 int opcode, service_action, i, j, num; 7421 7422 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7423 7424 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7425 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7426 7427 retval = CTL_RETVAL_COMPLETE; 7428 7429 opcode = cdb->requested_opcode; 7430 service_action = scsi_2btoul(cdb->requested_service_action); 7431 switch (cdb->options & RSO_OPTIONS_MASK) { 7432 case RSO_OPTIONS_ALL: 7433 num = 0; 7434 for (i = 0; i < 256; i++) { 7435 entry = &ctl_cmd_table[i]; 7436 if (entry->flags & CTL_CMD_FLAG_SA5) { 7437 for (j = 0; j < 32; j++) { 7438 sentry = &((const struct ctl_cmd_entry *) 7439 entry->execute)[j]; 7440 if (ctl_cmd_applicable( 7441 lun->be_lun->lun_type, sentry)) 7442 num++; 7443 } 7444 } else { 7445 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7446 entry)) 7447 num++; 7448 } 7449 } 7450 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7451 num * sizeof(struct scsi_report_supported_opcodes_descr); 7452 break; 7453 case RSO_OPTIONS_OC: 7454 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7455 ctl_set_invalid_field(/*ctsio*/ ctsio, 7456 /*sks_valid*/ 1, 7457 /*command*/ 1, 7458 /*field*/ 2, 7459 /*bit_valid*/ 1, 7460 /*bit*/ 2); 7461 ctl_done((union ctl_io *)ctsio); 7462 return (CTL_RETVAL_COMPLETE); 7463 } 7464 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7465 break; 7466 case RSO_OPTIONS_OC_SA: 7467 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7468 service_action >= 32) { 7469 ctl_set_invalid_field(/*ctsio*/ ctsio, 7470 /*sks_valid*/ 1, 7471 /*command*/ 1, 7472 /*field*/ 2, 7473 /*bit_valid*/ 1, 7474 /*bit*/ 2); 7475 ctl_done((union ctl_io *)ctsio); 7476 return (CTL_RETVAL_COMPLETE); 7477 } 7478 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7479 break; 7480 default: 7481 ctl_set_invalid_field(/*ctsio*/ ctsio, 7482 /*sks_valid*/ 1, 7483 /*command*/ 1, 7484 /*field*/ 2, 7485 /*bit_valid*/ 1, 7486 /*bit*/ 2); 7487 ctl_done((union ctl_io *)ctsio); 7488 return (CTL_RETVAL_COMPLETE); 7489 } 7490 7491 alloc_len = scsi_4btoul(cdb->length); 7492 7493 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7494 7495 ctsio->kern_sg_entries = 0; 7496 7497 if (total_len < alloc_len) { 7498 ctsio->residual = alloc_len - total_len; 7499 ctsio->kern_data_len = total_len; 7500 ctsio->kern_total_len = total_len; 7501 } else { 7502 ctsio->residual = 0; 7503 ctsio->kern_data_len = alloc_len; 7504 ctsio->kern_total_len = alloc_len; 7505 } 7506 ctsio->kern_data_resid = 0; 7507 ctsio->kern_rel_offset = 0; 7508 7509 switch (cdb->options & RSO_OPTIONS_MASK) { 7510 case RSO_OPTIONS_ALL: 7511 all = (struct scsi_report_supported_opcodes_all *) 7512 ctsio->kern_data_ptr; 7513 num = 0; 7514 for (i = 0; i < 256; i++) { 7515 entry = &ctl_cmd_table[i]; 7516 if (entry->flags & CTL_CMD_FLAG_SA5) { 7517 for (j = 0; j < 32; j++) { 7518 sentry = &((const struct ctl_cmd_entry *) 7519 entry->execute)[j]; 7520 if (!ctl_cmd_applicable( 7521 lun->be_lun->lun_type, sentry)) 7522 continue; 7523 descr = &all->descr[num++]; 7524 descr->opcode = i; 7525 scsi_ulto2b(j, descr->service_action); 7526 descr->flags = RSO_SERVACTV; 7527 scsi_ulto2b(sentry->length, 7528 descr->cdb_length); 7529 } 7530 } else { 7531 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7532 entry)) 7533 continue; 7534 descr = &all->descr[num++]; 7535 descr->opcode = i; 7536 scsi_ulto2b(0, descr->service_action); 7537 descr->flags = 0; 7538 scsi_ulto2b(entry->length, descr->cdb_length); 7539 } 7540 } 7541 scsi_ulto4b( 7542 num * sizeof(struct scsi_report_supported_opcodes_descr), 7543 all->length); 7544 break; 7545 case RSO_OPTIONS_OC: 7546 one = (struct scsi_report_supported_opcodes_one *) 7547 ctsio->kern_data_ptr; 7548 entry = &ctl_cmd_table[opcode]; 7549 goto fill_one; 7550 case RSO_OPTIONS_OC_SA: 7551 one = (struct scsi_report_supported_opcodes_one *) 7552 ctsio->kern_data_ptr; 7553 entry = &ctl_cmd_table[opcode]; 7554 entry = &((const struct ctl_cmd_entry *) 7555 entry->execute)[service_action]; 7556 fill_one: 7557 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7558 one->support = 3; 7559 scsi_ulto2b(entry->length, one->cdb_length); 7560 one->cdb_usage[0] = opcode; 7561 memcpy(&one->cdb_usage[1], entry->usage, 7562 entry->length - 1); 7563 } else 7564 one->support = 1; 7565 break; 7566 } 7567 7568 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7569 ctsio->be_move_done = ctl_config_move_done; 7570 7571 ctl_datamove((union ctl_io *)ctsio); 7572 return(retval); 7573 } 7574 7575 int 7576 ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7577 { 7578 struct ctl_lun *lun; 7579 struct scsi_report_supported_tmf *cdb; 7580 struct scsi_report_supported_tmf_data *data; 7581 int retval; 7582 int alloc_len, total_len; 7583 7584 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7585 7586 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7587 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7588 7589 retval = CTL_RETVAL_COMPLETE; 7590 7591 total_len = sizeof(struct scsi_report_supported_tmf_data); 7592 alloc_len = scsi_4btoul(cdb->length); 7593 7594 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7595 7596 ctsio->kern_sg_entries = 0; 7597 7598 if (total_len < alloc_len) { 7599 ctsio->residual = alloc_len - total_len; 7600 ctsio->kern_data_len = total_len; 7601 ctsio->kern_total_len = total_len; 7602 } else { 7603 ctsio->residual = 0; 7604 ctsio->kern_data_len = alloc_len; 7605 ctsio->kern_total_len = alloc_len; 7606 } 7607 ctsio->kern_data_resid = 0; 7608 ctsio->kern_rel_offset = 0; 7609 7610 data = (struct scsi_report_supported_tmf_data *)ctsio->kern_data_ptr; 7611 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_TRS; 7612 data->byte2 |= RST_ITNRS; 7613 7614 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7615 ctsio->be_move_done = ctl_config_move_done; 7616 7617 ctl_datamove((union ctl_io *)ctsio); 7618 return (retval); 7619 } 7620 7621 int 7622 ctl_report_timestamp(struct ctl_scsiio *ctsio) 7623 { 7624 struct ctl_lun *lun; 7625 struct scsi_report_timestamp *cdb; 7626 struct scsi_report_timestamp_data *data; 7627 struct timeval tv; 7628 int64_t timestamp; 7629 int retval; 7630 int alloc_len, total_len; 7631 7632 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7633 7634 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7635 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7636 7637 retval = CTL_RETVAL_COMPLETE; 7638 7639 total_len = sizeof(struct scsi_report_timestamp_data); 7640 alloc_len = scsi_4btoul(cdb->length); 7641 7642 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7643 7644 ctsio->kern_sg_entries = 0; 7645 7646 if (total_len < alloc_len) { 7647 ctsio->residual = alloc_len - total_len; 7648 ctsio->kern_data_len = total_len; 7649 ctsio->kern_total_len = total_len; 7650 } else { 7651 ctsio->residual = 0; 7652 ctsio->kern_data_len = alloc_len; 7653 ctsio->kern_total_len = alloc_len; 7654 } 7655 ctsio->kern_data_resid = 0; 7656 ctsio->kern_rel_offset = 0; 7657 7658 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7659 scsi_ulto2b(sizeof(*data) - 2, data->length); 7660 data->origin = RTS_ORIG_OUTSIDE; 7661 getmicrotime(&tv); 7662 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7663 scsi_ulto4b(timestamp >> 16, data->timestamp); 7664 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7665 7666 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7667 ctsio->be_move_done = ctl_config_move_done; 7668 7669 ctl_datamove((union ctl_io *)ctsio); 7670 return (retval); 7671 } 7672 7673 int 7674 ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7675 { 7676 struct scsi_per_res_in *cdb; 7677 int alloc_len, total_len = 0; 7678 /* struct scsi_per_res_in_rsrv in_data; */ 7679 struct ctl_lun *lun; 7680 struct ctl_softc *softc; 7681 7682 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7683 7684 softc = control_softc; 7685 7686 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7687 7688 alloc_len = scsi_2btoul(cdb->length); 7689 7690 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 7691 7692 retry: 7693 mtx_lock(&lun->lun_lock); 7694 switch (cdb->action) { 7695 case SPRI_RK: /* read keys */ 7696 total_len = sizeof(struct scsi_per_res_in_keys) + 7697 lun->pr_key_count * 7698 sizeof(struct scsi_per_res_key); 7699 break; 7700 case SPRI_RR: /* read reservation */ 7701 if (lun->flags & CTL_LUN_PR_RESERVED) 7702 total_len = sizeof(struct scsi_per_res_in_rsrv); 7703 else 7704 total_len = sizeof(struct scsi_per_res_in_header); 7705 break; 7706 case SPRI_RC: /* report capabilities */ 7707 total_len = sizeof(struct scsi_per_res_cap); 7708 break; 7709 case SPRI_RS: /* read full status */ 7710 total_len = sizeof(struct scsi_per_res_in_header) + 7711 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7712 lun->pr_key_count; 7713 break; 7714 default: 7715 panic("Invalid PR type %x", cdb->action); 7716 } 7717 mtx_unlock(&lun->lun_lock); 7718 7719 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7720 7721 if (total_len < alloc_len) { 7722 ctsio->residual = alloc_len - total_len; 7723 ctsio->kern_data_len = total_len; 7724 ctsio->kern_total_len = total_len; 7725 } else { 7726 ctsio->residual = 0; 7727 ctsio->kern_data_len = alloc_len; 7728 ctsio->kern_total_len = alloc_len; 7729 } 7730 7731 ctsio->kern_data_resid = 0; 7732 ctsio->kern_rel_offset = 0; 7733 ctsio->kern_sg_entries = 0; 7734 7735 mtx_lock(&lun->lun_lock); 7736 switch (cdb->action) { 7737 case SPRI_RK: { // read keys 7738 struct scsi_per_res_in_keys *res_keys; 7739 int i, key_count; 7740 7741 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7742 7743 /* 7744 * We had to drop the lock to allocate our buffer, which 7745 * leaves time for someone to come in with another 7746 * persistent reservation. (That is unlikely, though, 7747 * since this should be the only persistent reservation 7748 * command active right now.) 7749 */ 7750 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7751 (lun->pr_key_count * 7752 sizeof(struct scsi_per_res_key)))){ 7753 mtx_unlock(&lun->lun_lock); 7754 free(ctsio->kern_data_ptr, M_CTL); 7755 printf("%s: reservation length changed, retrying\n", 7756 __func__); 7757 goto retry; 7758 } 7759 7760 scsi_ulto4b(lun->PRGeneration, res_keys->header.generation); 7761 7762 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7763 lun->pr_key_count, res_keys->header.length); 7764 7765 for (i = 0, key_count = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7766 if (!lun->per_res[i].registered) 7767 continue; 7768 7769 /* 7770 * We used lun->pr_key_count to calculate the 7771 * size to allocate. If it turns out the number of 7772 * initiators with the registered flag set is 7773 * larger than that (i.e. they haven't been kept in 7774 * sync), we've got a problem. 7775 */ 7776 if (key_count >= lun->pr_key_count) { 7777 #ifdef NEEDTOPORT 7778 csevent_log(CSC_CTL | CSC_SHELF_SW | 7779 CTL_PR_ERROR, 7780 csevent_LogType_Fault, 7781 csevent_AlertLevel_Yellow, 7782 csevent_FRU_ShelfController, 7783 csevent_FRU_Firmware, 7784 csevent_FRU_Unknown, 7785 "registered keys %d >= key " 7786 "count %d", key_count, 7787 lun->pr_key_count); 7788 #endif 7789 key_count++; 7790 continue; 7791 } 7792 memcpy(res_keys->keys[key_count].key, 7793 lun->per_res[i].res_key.key, 7794 ctl_min(sizeof(res_keys->keys[key_count].key), 7795 sizeof(lun->per_res[i].res_key))); 7796 key_count++; 7797 } 7798 break; 7799 } 7800 case SPRI_RR: { // read reservation 7801 struct scsi_per_res_in_rsrv *res; 7802 int tmp_len, header_only; 7803 7804 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7805 7806 scsi_ulto4b(lun->PRGeneration, res->header.generation); 7807 7808 if (lun->flags & CTL_LUN_PR_RESERVED) 7809 { 7810 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7811 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7812 res->header.length); 7813 header_only = 0; 7814 } else { 7815 tmp_len = sizeof(struct scsi_per_res_in_header); 7816 scsi_ulto4b(0, res->header.length); 7817 header_only = 1; 7818 } 7819 7820 /* 7821 * We had to drop the lock to allocate our buffer, which 7822 * leaves time for someone to come in with another 7823 * persistent reservation. (That is unlikely, though, 7824 * since this should be the only persistent reservation 7825 * command active right now.) 7826 */ 7827 if (tmp_len != total_len) { 7828 mtx_unlock(&lun->lun_lock); 7829 free(ctsio->kern_data_ptr, M_CTL); 7830 printf("%s: reservation status changed, retrying\n", 7831 __func__); 7832 goto retry; 7833 } 7834 7835 /* 7836 * No reservation held, so we're done. 7837 */ 7838 if (header_only != 0) 7839 break; 7840 7841 /* 7842 * If the registration is an All Registrants type, the key 7843 * is 0, since it doesn't really matter. 7844 */ 7845 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7846 memcpy(res->data.reservation, 7847 &lun->per_res[lun->pr_res_idx].res_key, 7848 sizeof(struct scsi_per_res_key)); 7849 } 7850 res->data.scopetype = lun->res_type; 7851 break; 7852 } 7853 case SPRI_RC: //report capabilities 7854 { 7855 struct scsi_per_res_cap *res_cap; 7856 uint16_t type_mask; 7857 7858 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7859 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7860 res_cap->flags2 |= SPRI_TMV | SPRI_ALLOW_3; 7861 type_mask = SPRI_TM_WR_EX_AR | 7862 SPRI_TM_EX_AC_RO | 7863 SPRI_TM_WR_EX_RO | 7864 SPRI_TM_EX_AC | 7865 SPRI_TM_WR_EX | 7866 SPRI_TM_EX_AC_AR; 7867 scsi_ulto2b(type_mask, res_cap->type_mask); 7868 break; 7869 } 7870 case SPRI_RS: { // read full status 7871 struct scsi_per_res_in_full *res_status; 7872 struct scsi_per_res_in_full_desc *res_desc; 7873 struct ctl_port *port; 7874 int i, len; 7875 7876 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7877 7878 /* 7879 * We had to drop the lock to allocate our buffer, which 7880 * leaves time for someone to come in with another 7881 * persistent reservation. (That is unlikely, though, 7882 * since this should be the only persistent reservation 7883 * command active right now.) 7884 */ 7885 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7886 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7887 lun->pr_key_count)){ 7888 mtx_unlock(&lun->lun_lock); 7889 free(ctsio->kern_data_ptr, M_CTL); 7890 printf("%s: reservation length changed, retrying\n", 7891 __func__); 7892 goto retry; 7893 } 7894 7895 scsi_ulto4b(lun->PRGeneration, res_status->header.generation); 7896 7897 res_desc = &res_status->desc[0]; 7898 for (i = 0; i < 2*CTL_MAX_INITIATORS; i++) { 7899 if (!lun->per_res[i].registered) 7900 continue; 7901 7902 memcpy(&res_desc->res_key, &lun->per_res[i].res_key.key, 7903 sizeof(res_desc->res_key)); 7904 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7905 (lun->pr_res_idx == i || 7906 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7907 res_desc->flags = SPRI_FULL_R_HOLDER; 7908 res_desc->scopetype = lun->res_type; 7909 } 7910 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7911 res_desc->rel_trgt_port_id); 7912 len = 0; 7913 port = softc->ctl_ports[i / CTL_MAX_INIT_PER_PORT]; 7914 if (port != NULL) 7915 len = ctl_create_iid(port, 7916 i % CTL_MAX_INIT_PER_PORT, 7917 res_desc->transport_id); 7918 scsi_ulto4b(len, res_desc->additional_length); 7919 res_desc = (struct scsi_per_res_in_full_desc *) 7920 &res_desc->transport_id[len]; 7921 } 7922 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7923 res_status->header.length); 7924 break; 7925 } 7926 default: 7927 /* 7928 * This is a bug, because we just checked for this above, 7929 * and should have returned an error. 7930 */ 7931 panic("Invalid PR type %x", cdb->action); 7932 break; /* NOTREACHED */ 7933 } 7934 mtx_unlock(&lun->lun_lock); 7935 7936 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7937 ctsio->be_move_done = ctl_config_move_done; 7938 7939 CTL_DEBUG_PRINT(("buf = %x %x %x %x %x %x %x %x\n", 7940 ctsio->kern_data_ptr[0], ctsio->kern_data_ptr[1], 7941 ctsio->kern_data_ptr[2], ctsio->kern_data_ptr[3], 7942 ctsio->kern_data_ptr[4], ctsio->kern_data_ptr[5], 7943 ctsio->kern_data_ptr[6], ctsio->kern_data_ptr[7])); 7944 7945 ctl_datamove((union ctl_io *)ctsio); 7946 7947 return (CTL_RETVAL_COMPLETE); 7948 } 7949 7950 /* 7951 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7952 * it should return. 7953 */ 7954 static int 7955 ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7956 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7957 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7958 struct scsi_per_res_out_parms* param) 7959 { 7960 union ctl_ha_msg persis_io; 7961 int retval, i; 7962 int isc_retval; 7963 7964 retval = 0; 7965 7966 mtx_lock(&lun->lun_lock); 7967 if (sa_res_key == 0) { 7968 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7969 /* validate scope and type */ 7970 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7971 SPR_LU_SCOPE) { 7972 mtx_unlock(&lun->lun_lock); 7973 ctl_set_invalid_field(/*ctsio*/ ctsio, 7974 /*sks_valid*/ 1, 7975 /*command*/ 1, 7976 /*field*/ 2, 7977 /*bit_valid*/ 1, 7978 /*bit*/ 4); 7979 ctl_done((union ctl_io *)ctsio); 7980 return (1); 7981 } 7982 7983 if (type>8 || type==2 || type==4 || type==0) { 7984 mtx_unlock(&lun->lun_lock); 7985 ctl_set_invalid_field(/*ctsio*/ ctsio, 7986 /*sks_valid*/ 1, 7987 /*command*/ 1, 7988 /*field*/ 2, 7989 /*bit_valid*/ 1, 7990 /*bit*/ 0); 7991 ctl_done((union ctl_io *)ctsio); 7992 return (1); 7993 } 7994 7995 /* temporarily unregister this nexus */ 7996 lun->per_res[residx].registered = 0; 7997 7998 /* 7999 * Unregister everybody else and build UA for 8000 * them 8001 */ 8002 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8003 if (lun->per_res[i].registered == 0) 8004 continue; 8005 8006 if (!persis_offset 8007 && i <CTL_MAX_INITIATORS) 8008 lun->pending_ua[i] |= 8009 CTL_UA_REG_PREEMPT; 8010 else if (persis_offset 8011 && i >= persis_offset) 8012 lun->pending_ua[i-persis_offset] |= 8013 CTL_UA_REG_PREEMPT; 8014 lun->per_res[i].registered = 0; 8015 memset(&lun->per_res[i].res_key, 0, 8016 sizeof(struct scsi_per_res_key)); 8017 } 8018 lun->per_res[residx].registered = 1; 8019 lun->pr_key_count = 1; 8020 lun->res_type = type; 8021 if (lun->res_type != SPR_TYPE_WR_EX_AR 8022 && lun->res_type != SPR_TYPE_EX_AC_AR) 8023 lun->pr_res_idx = residx; 8024 8025 /* send msg to other side */ 8026 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8027 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8028 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8029 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8030 persis_io.pr.pr_info.res_type = type; 8031 memcpy(persis_io.pr.pr_info.sa_res_key, 8032 param->serv_act_res_key, 8033 sizeof(param->serv_act_res_key)); 8034 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8035 &persis_io, sizeof(persis_io), 0)) > 8036 CTL_HA_STATUS_SUCCESS) { 8037 printf("CTL:Persis Out error returned " 8038 "from ctl_ha_msg_send %d\n", 8039 isc_retval); 8040 } 8041 } else { 8042 /* not all registrants */ 8043 mtx_unlock(&lun->lun_lock); 8044 free(ctsio->kern_data_ptr, M_CTL); 8045 ctl_set_invalid_field(ctsio, 8046 /*sks_valid*/ 1, 8047 /*command*/ 0, 8048 /*field*/ 8, 8049 /*bit_valid*/ 0, 8050 /*bit*/ 0); 8051 ctl_done((union ctl_io *)ctsio); 8052 return (1); 8053 } 8054 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8055 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 8056 int found = 0; 8057 8058 if (res_key == sa_res_key) { 8059 /* special case */ 8060 /* 8061 * The spec implies this is not good but doesn't 8062 * say what to do. There are two choices either 8063 * generate a res conflict or check condition 8064 * with illegal field in parameter data. Since 8065 * that is what is done when the sa_res_key is 8066 * zero I'll take that approach since this has 8067 * to do with the sa_res_key. 8068 */ 8069 mtx_unlock(&lun->lun_lock); 8070 free(ctsio->kern_data_ptr, M_CTL); 8071 ctl_set_invalid_field(ctsio, 8072 /*sks_valid*/ 1, 8073 /*command*/ 0, 8074 /*field*/ 8, 8075 /*bit_valid*/ 0, 8076 /*bit*/ 0); 8077 ctl_done((union ctl_io *)ctsio); 8078 return (1); 8079 } 8080 8081 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8082 if (lun->per_res[i].registered 8083 && memcmp(param->serv_act_res_key, 8084 lun->per_res[i].res_key.key, 8085 sizeof(struct scsi_per_res_key)) != 0) 8086 continue; 8087 8088 found = 1; 8089 lun->per_res[i].registered = 0; 8090 memset(&lun->per_res[i].res_key, 0, 8091 sizeof(struct scsi_per_res_key)); 8092 lun->pr_key_count--; 8093 8094 if (!persis_offset && i < CTL_MAX_INITIATORS) 8095 lun->pending_ua[i] |= CTL_UA_REG_PREEMPT; 8096 else if (persis_offset && i >= persis_offset) 8097 lun->pending_ua[i-persis_offset] |= 8098 CTL_UA_REG_PREEMPT; 8099 } 8100 if (!found) { 8101 mtx_unlock(&lun->lun_lock); 8102 free(ctsio->kern_data_ptr, M_CTL); 8103 ctl_set_reservation_conflict(ctsio); 8104 ctl_done((union ctl_io *)ctsio); 8105 return (CTL_RETVAL_COMPLETE); 8106 } 8107 /* send msg to other side */ 8108 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8109 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8110 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8111 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8112 persis_io.pr.pr_info.res_type = type; 8113 memcpy(persis_io.pr.pr_info.sa_res_key, 8114 param->serv_act_res_key, 8115 sizeof(param->serv_act_res_key)); 8116 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8117 &persis_io, sizeof(persis_io), 0)) > 8118 CTL_HA_STATUS_SUCCESS) { 8119 printf("CTL:Persis Out error returned from " 8120 "ctl_ha_msg_send %d\n", isc_retval); 8121 } 8122 } else { 8123 /* Reserved but not all registrants */ 8124 /* sa_res_key is res holder */ 8125 if (memcmp(param->serv_act_res_key, 8126 lun->per_res[lun->pr_res_idx].res_key.key, 8127 sizeof(struct scsi_per_res_key)) == 0) { 8128 /* validate scope and type */ 8129 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8130 SPR_LU_SCOPE) { 8131 mtx_unlock(&lun->lun_lock); 8132 ctl_set_invalid_field(/*ctsio*/ ctsio, 8133 /*sks_valid*/ 1, 8134 /*command*/ 1, 8135 /*field*/ 2, 8136 /*bit_valid*/ 1, 8137 /*bit*/ 4); 8138 ctl_done((union ctl_io *)ctsio); 8139 return (1); 8140 } 8141 8142 if (type>8 || type==2 || type==4 || type==0) { 8143 mtx_unlock(&lun->lun_lock); 8144 ctl_set_invalid_field(/*ctsio*/ ctsio, 8145 /*sks_valid*/ 1, 8146 /*command*/ 1, 8147 /*field*/ 2, 8148 /*bit_valid*/ 1, 8149 /*bit*/ 0); 8150 ctl_done((union ctl_io *)ctsio); 8151 return (1); 8152 } 8153 8154 /* 8155 * Do the following: 8156 * if sa_res_key != res_key remove all 8157 * registrants w/sa_res_key and generate UA 8158 * for these registrants(Registrations 8159 * Preempted) if it wasn't an exclusive 8160 * reservation generate UA(Reservations 8161 * Preempted) for all other registered nexuses 8162 * if the type has changed. Establish the new 8163 * reservation and holder. If res_key and 8164 * sa_res_key are the same do the above 8165 * except don't unregister the res holder. 8166 */ 8167 8168 /* 8169 * Temporarily unregister so it won't get 8170 * removed or UA generated 8171 */ 8172 lun->per_res[residx].registered = 0; 8173 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8174 if (lun->per_res[i].registered == 0) 8175 continue; 8176 8177 if (memcmp(param->serv_act_res_key, 8178 lun->per_res[i].res_key.key, 8179 sizeof(struct scsi_per_res_key)) == 0) { 8180 lun->per_res[i].registered = 0; 8181 memset(&lun->per_res[i].res_key, 8182 0, 8183 sizeof(struct scsi_per_res_key)); 8184 lun->pr_key_count--; 8185 8186 if (!persis_offset 8187 && i < CTL_MAX_INITIATORS) 8188 lun->pending_ua[i] |= 8189 CTL_UA_REG_PREEMPT; 8190 else if (persis_offset 8191 && i >= persis_offset) 8192 lun->pending_ua[i-persis_offset] |= 8193 CTL_UA_REG_PREEMPT; 8194 } else if (type != lun->res_type 8195 && (lun->res_type == SPR_TYPE_WR_EX_RO 8196 || lun->res_type ==SPR_TYPE_EX_AC_RO)){ 8197 if (!persis_offset 8198 && i < CTL_MAX_INITIATORS) 8199 lun->pending_ua[i] |= 8200 CTL_UA_RES_RELEASE; 8201 else if (persis_offset 8202 && i >= persis_offset) 8203 lun->pending_ua[ 8204 i-persis_offset] |= 8205 CTL_UA_RES_RELEASE; 8206 } 8207 } 8208 lun->per_res[residx].registered = 1; 8209 lun->res_type = type; 8210 if (lun->res_type != SPR_TYPE_WR_EX_AR 8211 && lun->res_type != SPR_TYPE_EX_AC_AR) 8212 lun->pr_res_idx = residx; 8213 else 8214 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8215 8216 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8217 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8218 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8219 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8220 persis_io.pr.pr_info.res_type = type; 8221 memcpy(persis_io.pr.pr_info.sa_res_key, 8222 param->serv_act_res_key, 8223 sizeof(param->serv_act_res_key)); 8224 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8225 &persis_io, sizeof(persis_io), 0)) > 8226 CTL_HA_STATUS_SUCCESS) { 8227 printf("CTL:Persis Out error returned " 8228 "from ctl_ha_msg_send %d\n", 8229 isc_retval); 8230 } 8231 } else { 8232 /* 8233 * sa_res_key is not the res holder just 8234 * remove registrants 8235 */ 8236 int found=0; 8237 8238 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8239 if (memcmp(param->serv_act_res_key, 8240 lun->per_res[i].res_key.key, 8241 sizeof(struct scsi_per_res_key)) != 0) 8242 continue; 8243 8244 found = 1; 8245 lun->per_res[i].registered = 0; 8246 memset(&lun->per_res[i].res_key, 0, 8247 sizeof(struct scsi_per_res_key)); 8248 lun->pr_key_count--; 8249 8250 if (!persis_offset 8251 && i < CTL_MAX_INITIATORS) 8252 lun->pending_ua[i] |= 8253 CTL_UA_REG_PREEMPT; 8254 else if (persis_offset 8255 && i >= persis_offset) 8256 lun->pending_ua[i-persis_offset] |= 8257 CTL_UA_REG_PREEMPT; 8258 } 8259 8260 if (!found) { 8261 mtx_unlock(&lun->lun_lock); 8262 free(ctsio->kern_data_ptr, M_CTL); 8263 ctl_set_reservation_conflict(ctsio); 8264 ctl_done((union ctl_io *)ctsio); 8265 return (1); 8266 } 8267 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8268 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8269 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8270 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8271 persis_io.pr.pr_info.res_type = type; 8272 memcpy(persis_io.pr.pr_info.sa_res_key, 8273 param->serv_act_res_key, 8274 sizeof(param->serv_act_res_key)); 8275 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8276 &persis_io, sizeof(persis_io), 0)) > 8277 CTL_HA_STATUS_SUCCESS) { 8278 printf("CTL:Persis Out error returned " 8279 "from ctl_ha_msg_send %d\n", 8280 isc_retval); 8281 } 8282 } 8283 } 8284 8285 lun->PRGeneration++; 8286 mtx_unlock(&lun->lun_lock); 8287 8288 return (retval); 8289 } 8290 8291 static void 8292 ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8293 { 8294 int i; 8295 8296 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8297 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8298 || memcmp(&lun->per_res[lun->pr_res_idx].res_key, 8299 msg->pr.pr_info.sa_res_key, 8300 sizeof(struct scsi_per_res_key)) != 0) { 8301 uint64_t sa_res_key; 8302 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8303 8304 if (sa_res_key == 0) { 8305 /* temporarily unregister this nexus */ 8306 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8307 8308 /* 8309 * Unregister everybody else and build UA for 8310 * them 8311 */ 8312 for(i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8313 if (lun->per_res[i].registered == 0) 8314 continue; 8315 8316 if (!persis_offset 8317 && i < CTL_MAX_INITIATORS) 8318 lun->pending_ua[i] |= 8319 CTL_UA_REG_PREEMPT; 8320 else if (persis_offset && i >= persis_offset) 8321 lun->pending_ua[i - persis_offset] |= 8322 CTL_UA_REG_PREEMPT; 8323 lun->per_res[i].registered = 0; 8324 memset(&lun->per_res[i].res_key, 0, 8325 sizeof(struct scsi_per_res_key)); 8326 } 8327 8328 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8329 lun->pr_key_count = 1; 8330 lun->res_type = msg->pr.pr_info.res_type; 8331 if (lun->res_type != SPR_TYPE_WR_EX_AR 8332 && lun->res_type != SPR_TYPE_EX_AC_AR) 8333 lun->pr_res_idx = msg->pr.pr_info.residx; 8334 } else { 8335 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8336 if (memcmp(msg->pr.pr_info.sa_res_key, 8337 lun->per_res[i].res_key.key, 8338 sizeof(struct scsi_per_res_key)) != 0) 8339 continue; 8340 8341 lun->per_res[i].registered = 0; 8342 memset(&lun->per_res[i].res_key, 0, 8343 sizeof(struct scsi_per_res_key)); 8344 lun->pr_key_count--; 8345 8346 if (!persis_offset 8347 && i < persis_offset) 8348 lun->pending_ua[i] |= 8349 CTL_UA_REG_PREEMPT; 8350 else if (persis_offset 8351 && i >= persis_offset) 8352 lun->pending_ua[i - persis_offset] |= 8353 CTL_UA_REG_PREEMPT; 8354 } 8355 } 8356 } else { 8357 /* 8358 * Temporarily unregister so it won't get removed 8359 * or UA generated 8360 */ 8361 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8362 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8363 if (lun->per_res[i].registered == 0) 8364 continue; 8365 8366 if (memcmp(msg->pr.pr_info.sa_res_key, 8367 lun->per_res[i].res_key.key, 8368 sizeof(struct scsi_per_res_key)) == 0) { 8369 lun->per_res[i].registered = 0; 8370 memset(&lun->per_res[i].res_key, 0, 8371 sizeof(struct scsi_per_res_key)); 8372 lun->pr_key_count--; 8373 if (!persis_offset 8374 && i < CTL_MAX_INITIATORS) 8375 lun->pending_ua[i] |= 8376 CTL_UA_REG_PREEMPT; 8377 else if (persis_offset 8378 && i >= persis_offset) 8379 lun->pending_ua[i - persis_offset] |= 8380 CTL_UA_REG_PREEMPT; 8381 } else if (msg->pr.pr_info.res_type != lun->res_type 8382 && (lun->res_type == SPR_TYPE_WR_EX_RO 8383 || lun->res_type == SPR_TYPE_EX_AC_RO)) { 8384 if (!persis_offset 8385 && i < persis_offset) 8386 lun->pending_ua[i] |= 8387 CTL_UA_RES_RELEASE; 8388 else if (persis_offset 8389 && i >= persis_offset) 8390 lun->pending_ua[i - persis_offset] |= 8391 CTL_UA_RES_RELEASE; 8392 } 8393 } 8394 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8395 lun->res_type = msg->pr.pr_info.res_type; 8396 if (lun->res_type != SPR_TYPE_WR_EX_AR 8397 && lun->res_type != SPR_TYPE_EX_AC_AR) 8398 lun->pr_res_idx = msg->pr.pr_info.residx; 8399 else 8400 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8401 } 8402 lun->PRGeneration++; 8403 8404 } 8405 8406 8407 int 8408 ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8409 { 8410 int retval; 8411 int isc_retval; 8412 u_int32_t param_len; 8413 struct scsi_per_res_out *cdb; 8414 struct ctl_lun *lun; 8415 struct scsi_per_res_out_parms* param; 8416 struct ctl_softc *softc; 8417 uint32_t residx; 8418 uint64_t res_key, sa_res_key; 8419 uint8_t type; 8420 union ctl_ha_msg persis_io; 8421 int i; 8422 8423 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8424 8425 retval = CTL_RETVAL_COMPLETE; 8426 8427 softc = control_softc; 8428 8429 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8430 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8431 8432 /* 8433 * We only support whole-LUN scope. The scope & type are ignored for 8434 * register, register and ignore existing key and clear. 8435 * We sometimes ignore scope and type on preempts too!! 8436 * Verify reservation type here as well. 8437 */ 8438 type = cdb->scope_type & SPR_TYPE_MASK; 8439 if ((cdb->action == SPRO_RESERVE) 8440 || (cdb->action == SPRO_RELEASE)) { 8441 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8442 ctl_set_invalid_field(/*ctsio*/ ctsio, 8443 /*sks_valid*/ 1, 8444 /*command*/ 1, 8445 /*field*/ 2, 8446 /*bit_valid*/ 1, 8447 /*bit*/ 4); 8448 ctl_done((union ctl_io *)ctsio); 8449 return (CTL_RETVAL_COMPLETE); 8450 } 8451 8452 if (type>8 || type==2 || type==4 || type==0) { 8453 ctl_set_invalid_field(/*ctsio*/ ctsio, 8454 /*sks_valid*/ 1, 8455 /*command*/ 1, 8456 /*field*/ 2, 8457 /*bit_valid*/ 1, 8458 /*bit*/ 0); 8459 ctl_done((union ctl_io *)ctsio); 8460 return (CTL_RETVAL_COMPLETE); 8461 } 8462 } 8463 8464 param_len = scsi_4btoul(cdb->length); 8465 8466 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8467 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8468 ctsio->kern_data_len = param_len; 8469 ctsio->kern_total_len = param_len; 8470 ctsio->kern_data_resid = 0; 8471 ctsio->kern_rel_offset = 0; 8472 ctsio->kern_sg_entries = 0; 8473 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8474 ctsio->be_move_done = ctl_config_move_done; 8475 ctl_datamove((union ctl_io *)ctsio); 8476 8477 return (CTL_RETVAL_COMPLETE); 8478 } 8479 8480 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8481 8482 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 8483 res_key = scsi_8btou64(param->res_key.key); 8484 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8485 8486 /* 8487 * Validate the reservation key here except for SPRO_REG_IGNO 8488 * This must be done for all other service actions 8489 */ 8490 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8491 mtx_lock(&lun->lun_lock); 8492 if (lun->per_res[residx].registered) { 8493 if (memcmp(param->res_key.key, 8494 lun->per_res[residx].res_key.key, 8495 ctl_min(sizeof(param->res_key), 8496 sizeof(lun->per_res[residx].res_key))) != 0) { 8497 /* 8498 * The current key passed in doesn't match 8499 * the one the initiator previously 8500 * registered. 8501 */ 8502 mtx_unlock(&lun->lun_lock); 8503 free(ctsio->kern_data_ptr, M_CTL); 8504 ctl_set_reservation_conflict(ctsio); 8505 ctl_done((union ctl_io *)ctsio); 8506 return (CTL_RETVAL_COMPLETE); 8507 } 8508 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8509 /* 8510 * We are not registered 8511 */ 8512 mtx_unlock(&lun->lun_lock); 8513 free(ctsio->kern_data_ptr, M_CTL); 8514 ctl_set_reservation_conflict(ctsio); 8515 ctl_done((union ctl_io *)ctsio); 8516 return (CTL_RETVAL_COMPLETE); 8517 } else if (res_key != 0) { 8518 /* 8519 * We are not registered and trying to register but 8520 * the register key isn't zero. 8521 */ 8522 mtx_unlock(&lun->lun_lock); 8523 free(ctsio->kern_data_ptr, M_CTL); 8524 ctl_set_reservation_conflict(ctsio); 8525 ctl_done((union ctl_io *)ctsio); 8526 return (CTL_RETVAL_COMPLETE); 8527 } 8528 mtx_unlock(&lun->lun_lock); 8529 } 8530 8531 switch (cdb->action & SPRO_ACTION_MASK) { 8532 case SPRO_REGISTER: 8533 case SPRO_REG_IGNO: { 8534 8535 #if 0 8536 printf("Registration received\n"); 8537 #endif 8538 8539 /* 8540 * We don't support any of these options, as we report in 8541 * the read capabilities request (see 8542 * ctl_persistent_reserve_in(), above). 8543 */ 8544 if ((param->flags & SPR_SPEC_I_PT) 8545 || (param->flags & SPR_ALL_TG_PT) 8546 || (param->flags & SPR_APTPL)) { 8547 int bit_ptr; 8548 8549 if (param->flags & SPR_APTPL) 8550 bit_ptr = 0; 8551 else if (param->flags & SPR_ALL_TG_PT) 8552 bit_ptr = 2; 8553 else /* SPR_SPEC_I_PT */ 8554 bit_ptr = 3; 8555 8556 free(ctsio->kern_data_ptr, M_CTL); 8557 ctl_set_invalid_field(ctsio, 8558 /*sks_valid*/ 1, 8559 /*command*/ 0, 8560 /*field*/ 20, 8561 /*bit_valid*/ 1, 8562 /*bit*/ bit_ptr); 8563 ctl_done((union ctl_io *)ctsio); 8564 return (CTL_RETVAL_COMPLETE); 8565 } 8566 8567 mtx_lock(&lun->lun_lock); 8568 8569 /* 8570 * The initiator wants to clear the 8571 * key/unregister. 8572 */ 8573 if (sa_res_key == 0) { 8574 if ((res_key == 0 8575 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8576 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8577 && !lun->per_res[residx].registered)) { 8578 mtx_unlock(&lun->lun_lock); 8579 goto done; 8580 } 8581 8582 lun->per_res[residx].registered = 0; 8583 memset(&lun->per_res[residx].res_key, 8584 0, sizeof(lun->per_res[residx].res_key)); 8585 lun->pr_key_count--; 8586 8587 if (residx == lun->pr_res_idx) { 8588 lun->flags &= ~CTL_LUN_PR_RESERVED; 8589 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8590 8591 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8592 || lun->res_type == SPR_TYPE_EX_AC_RO) 8593 && lun->pr_key_count) { 8594 /* 8595 * If the reservation is a registrants 8596 * only type we need to generate a UA 8597 * for other registered inits. The 8598 * sense code should be RESERVATIONS 8599 * RELEASED 8600 */ 8601 8602 for (i = 0; i < CTL_MAX_INITIATORS;i++){ 8603 if (lun->per_res[ 8604 i+persis_offset].registered 8605 == 0) 8606 continue; 8607 lun->pending_ua[i] |= 8608 CTL_UA_RES_RELEASE; 8609 } 8610 } 8611 lun->res_type = 0; 8612 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8613 if (lun->pr_key_count==0) { 8614 lun->flags &= ~CTL_LUN_PR_RESERVED; 8615 lun->res_type = 0; 8616 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8617 } 8618 } 8619 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8620 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8621 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8622 persis_io.pr.pr_info.residx = residx; 8623 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8624 &persis_io, sizeof(persis_io), 0 )) > 8625 CTL_HA_STATUS_SUCCESS) { 8626 printf("CTL:Persis Out error returned from " 8627 "ctl_ha_msg_send %d\n", isc_retval); 8628 } 8629 } else /* sa_res_key != 0 */ { 8630 8631 /* 8632 * If we aren't registered currently then increment 8633 * the key count and set the registered flag. 8634 */ 8635 if (!lun->per_res[residx].registered) { 8636 lun->pr_key_count++; 8637 lun->per_res[residx].registered = 1; 8638 } 8639 8640 memcpy(&lun->per_res[residx].res_key, 8641 param->serv_act_res_key, 8642 ctl_min(sizeof(param->serv_act_res_key), 8643 sizeof(lun->per_res[residx].res_key))); 8644 8645 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8646 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8647 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8648 persis_io.pr.pr_info.residx = residx; 8649 memcpy(persis_io.pr.pr_info.sa_res_key, 8650 param->serv_act_res_key, 8651 sizeof(param->serv_act_res_key)); 8652 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8653 &persis_io, sizeof(persis_io), 0)) > 8654 CTL_HA_STATUS_SUCCESS) { 8655 printf("CTL:Persis Out error returned from " 8656 "ctl_ha_msg_send %d\n", isc_retval); 8657 } 8658 } 8659 lun->PRGeneration++; 8660 mtx_unlock(&lun->lun_lock); 8661 8662 break; 8663 } 8664 case SPRO_RESERVE: 8665 #if 0 8666 printf("Reserve executed type %d\n", type); 8667 #endif 8668 mtx_lock(&lun->lun_lock); 8669 if (lun->flags & CTL_LUN_PR_RESERVED) { 8670 /* 8671 * if this isn't the reservation holder and it's 8672 * not a "all registrants" type or if the type is 8673 * different then we have a conflict 8674 */ 8675 if ((lun->pr_res_idx != residx 8676 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8677 || lun->res_type != type) { 8678 mtx_unlock(&lun->lun_lock); 8679 free(ctsio->kern_data_ptr, M_CTL); 8680 ctl_set_reservation_conflict(ctsio); 8681 ctl_done((union ctl_io *)ctsio); 8682 return (CTL_RETVAL_COMPLETE); 8683 } 8684 mtx_unlock(&lun->lun_lock); 8685 } else /* create a reservation */ { 8686 /* 8687 * If it's not an "all registrants" type record 8688 * reservation holder 8689 */ 8690 if (type != SPR_TYPE_WR_EX_AR 8691 && type != SPR_TYPE_EX_AC_AR) 8692 lun->pr_res_idx = residx; /* Res holder */ 8693 else 8694 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8695 8696 lun->flags |= CTL_LUN_PR_RESERVED; 8697 lun->res_type = type; 8698 8699 mtx_unlock(&lun->lun_lock); 8700 8701 /* send msg to other side */ 8702 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8703 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8704 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8705 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8706 persis_io.pr.pr_info.res_type = type; 8707 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 8708 &persis_io, sizeof(persis_io), 0)) > 8709 CTL_HA_STATUS_SUCCESS) { 8710 printf("CTL:Persis Out error returned from " 8711 "ctl_ha_msg_send %d\n", isc_retval); 8712 } 8713 } 8714 break; 8715 8716 case SPRO_RELEASE: 8717 mtx_lock(&lun->lun_lock); 8718 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8719 /* No reservation exists return good status */ 8720 mtx_unlock(&lun->lun_lock); 8721 goto done; 8722 } 8723 /* 8724 * Is this nexus a reservation holder? 8725 */ 8726 if (lun->pr_res_idx != residx 8727 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8728 /* 8729 * not a res holder return good status but 8730 * do nothing 8731 */ 8732 mtx_unlock(&lun->lun_lock); 8733 goto done; 8734 } 8735 8736 if (lun->res_type != type) { 8737 mtx_unlock(&lun->lun_lock); 8738 free(ctsio->kern_data_ptr, M_CTL); 8739 ctl_set_illegal_pr_release(ctsio); 8740 ctl_done((union ctl_io *)ctsio); 8741 return (CTL_RETVAL_COMPLETE); 8742 } 8743 8744 /* okay to release */ 8745 lun->flags &= ~CTL_LUN_PR_RESERVED; 8746 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8747 lun->res_type = 0; 8748 8749 /* 8750 * if this isn't an exclusive access 8751 * res generate UA for all other 8752 * registrants. 8753 */ 8754 if (type != SPR_TYPE_EX_AC 8755 && type != SPR_TYPE_WR_EX) { 8756 /* 8757 * temporarily unregister so we don't generate UA 8758 */ 8759 lun->per_res[residx].registered = 0; 8760 8761 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8762 if (lun->per_res[i+persis_offset].registered 8763 == 0) 8764 continue; 8765 lun->pending_ua[i] |= 8766 CTL_UA_RES_RELEASE; 8767 } 8768 8769 lun->per_res[residx].registered = 1; 8770 } 8771 mtx_unlock(&lun->lun_lock); 8772 /* Send msg to other side */ 8773 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8774 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8775 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8776 if ((isc_retval=ctl_ha_msg_send( CTL_HA_CHAN_CTL, &persis_io, 8777 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8778 printf("CTL:Persis Out error returned from " 8779 "ctl_ha_msg_send %d\n", isc_retval); 8780 } 8781 break; 8782 8783 case SPRO_CLEAR: 8784 /* send msg to other side */ 8785 8786 mtx_lock(&lun->lun_lock); 8787 lun->flags &= ~CTL_LUN_PR_RESERVED; 8788 lun->res_type = 0; 8789 lun->pr_key_count = 0; 8790 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8791 8792 8793 memset(&lun->per_res[residx].res_key, 8794 0, sizeof(lun->per_res[residx].res_key)); 8795 lun->per_res[residx].registered = 0; 8796 8797 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) 8798 if (lun->per_res[i].registered) { 8799 if (!persis_offset && i < CTL_MAX_INITIATORS) 8800 lun->pending_ua[i] |= 8801 CTL_UA_RES_PREEMPT; 8802 else if (persis_offset && i >= persis_offset) 8803 lun->pending_ua[i-persis_offset] |= 8804 CTL_UA_RES_PREEMPT; 8805 8806 memset(&lun->per_res[i].res_key, 8807 0, sizeof(struct scsi_per_res_key)); 8808 lun->per_res[i].registered = 0; 8809 } 8810 lun->PRGeneration++; 8811 mtx_unlock(&lun->lun_lock); 8812 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8813 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8814 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8815 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8816 sizeof(persis_io), 0)) > CTL_HA_STATUS_SUCCESS) { 8817 printf("CTL:Persis Out error returned from " 8818 "ctl_ha_msg_send %d\n", isc_retval); 8819 } 8820 break; 8821 8822 case SPRO_PREEMPT: { 8823 int nretval; 8824 8825 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8826 residx, ctsio, cdb, param); 8827 if (nretval != 0) 8828 return (CTL_RETVAL_COMPLETE); 8829 break; 8830 } 8831 default: 8832 panic("Invalid PR type %x", cdb->action); 8833 } 8834 8835 done: 8836 free(ctsio->kern_data_ptr, M_CTL); 8837 ctl_set_success(ctsio); 8838 ctl_done((union ctl_io *)ctsio); 8839 8840 return (retval); 8841 } 8842 8843 /* 8844 * This routine is for handling a message from the other SC pertaining to 8845 * persistent reserve out. All the error checking will have been done 8846 * so only perorming the action need be done here to keep the two 8847 * in sync. 8848 */ 8849 static void 8850 ctl_hndl_per_res_out_on_other_sc(union ctl_ha_msg *msg) 8851 { 8852 struct ctl_lun *lun; 8853 struct ctl_softc *softc; 8854 int i; 8855 uint32_t targ_lun; 8856 8857 softc = control_softc; 8858 8859 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8860 lun = softc->ctl_luns[targ_lun]; 8861 mtx_lock(&lun->lun_lock); 8862 switch(msg->pr.pr_info.action) { 8863 case CTL_PR_REG_KEY: 8864 if (!lun->per_res[msg->pr.pr_info.residx].registered) { 8865 lun->per_res[msg->pr.pr_info.residx].registered = 1; 8866 lun->pr_key_count++; 8867 } 8868 lun->PRGeneration++; 8869 memcpy(&lun->per_res[msg->pr.pr_info.residx].res_key, 8870 msg->pr.pr_info.sa_res_key, 8871 sizeof(struct scsi_per_res_key)); 8872 break; 8873 8874 case CTL_PR_UNREG_KEY: 8875 lun->per_res[msg->pr.pr_info.residx].registered = 0; 8876 memset(&lun->per_res[msg->pr.pr_info.residx].res_key, 8877 0, sizeof(struct scsi_per_res_key)); 8878 lun->pr_key_count--; 8879 8880 /* XXX Need to see if the reservation has been released */ 8881 /* if so do we need to generate UA? */ 8882 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8883 lun->flags &= ~CTL_LUN_PR_RESERVED; 8884 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8885 8886 if ((lun->res_type == SPR_TYPE_WR_EX_RO 8887 || lun->res_type == SPR_TYPE_EX_AC_RO) 8888 && lun->pr_key_count) { 8889 /* 8890 * If the reservation is a registrants 8891 * only type we need to generate a UA 8892 * for other registered inits. The 8893 * sense code should be RESERVATIONS 8894 * RELEASED 8895 */ 8896 8897 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8898 if (lun->per_res[i+ 8899 persis_offset].registered == 0) 8900 continue; 8901 8902 lun->pending_ua[i] |= 8903 CTL_UA_RES_RELEASE; 8904 } 8905 } 8906 lun->res_type = 0; 8907 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8908 if (lun->pr_key_count==0) { 8909 lun->flags &= ~CTL_LUN_PR_RESERVED; 8910 lun->res_type = 0; 8911 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8912 } 8913 } 8914 lun->PRGeneration++; 8915 break; 8916 8917 case CTL_PR_RESERVE: 8918 lun->flags |= CTL_LUN_PR_RESERVED; 8919 lun->res_type = msg->pr.pr_info.res_type; 8920 lun->pr_res_idx = msg->pr.pr_info.residx; 8921 8922 break; 8923 8924 case CTL_PR_RELEASE: 8925 /* 8926 * if this isn't an exclusive access res generate UA for all 8927 * other registrants. 8928 */ 8929 if (lun->res_type != SPR_TYPE_EX_AC 8930 && lun->res_type != SPR_TYPE_WR_EX) { 8931 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8932 if (lun->per_res[i+persis_offset].registered) 8933 lun->pending_ua[i] |= 8934 CTL_UA_RES_RELEASE; 8935 } 8936 8937 lun->flags &= ~CTL_LUN_PR_RESERVED; 8938 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8939 lun->res_type = 0; 8940 break; 8941 8942 case CTL_PR_PREEMPT: 8943 ctl_pro_preempt_other(lun, msg); 8944 break; 8945 case CTL_PR_CLEAR: 8946 lun->flags &= ~CTL_LUN_PR_RESERVED; 8947 lun->res_type = 0; 8948 lun->pr_key_count = 0; 8949 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8950 8951 for (i=0; i < 2*CTL_MAX_INITIATORS; i++) { 8952 if (lun->per_res[i].registered == 0) 8953 continue; 8954 if (!persis_offset 8955 && i < CTL_MAX_INITIATORS) 8956 lun->pending_ua[i] |= CTL_UA_RES_PREEMPT; 8957 else if (persis_offset 8958 && i >= persis_offset) 8959 lun->pending_ua[i-persis_offset] |= 8960 CTL_UA_RES_PREEMPT; 8961 memset(&lun->per_res[i].res_key, 0, 8962 sizeof(struct scsi_per_res_key)); 8963 lun->per_res[i].registered = 0; 8964 } 8965 lun->PRGeneration++; 8966 break; 8967 } 8968 8969 mtx_unlock(&lun->lun_lock); 8970 } 8971 8972 int 8973 ctl_read_write(struct ctl_scsiio *ctsio) 8974 { 8975 struct ctl_lun *lun; 8976 struct ctl_lba_len_flags *lbalen; 8977 uint64_t lba; 8978 uint32_t num_blocks; 8979 int fua, dpo; 8980 int retval; 8981 int isread; 8982 8983 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 8984 8985 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8986 8987 fua = 0; 8988 dpo = 0; 8989 8990 retval = CTL_RETVAL_COMPLETE; 8991 8992 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8993 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8994 if (lun->flags & CTL_LUN_PR_RESERVED && isread) { 8995 uint32_t residx; 8996 8997 /* 8998 * XXX KDM need a lock here. 8999 */ 9000 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 9001 if ((lun->res_type == SPR_TYPE_EX_AC 9002 && residx != lun->pr_res_idx) 9003 || ((lun->res_type == SPR_TYPE_EX_AC_RO 9004 || lun->res_type == SPR_TYPE_EX_AC_AR) 9005 && !lun->per_res[residx].registered)) { 9006 ctl_set_reservation_conflict(ctsio); 9007 ctl_done((union ctl_io *)ctsio); 9008 return (CTL_RETVAL_COMPLETE); 9009 } 9010 } 9011 9012 switch (ctsio->cdb[0]) { 9013 case READ_6: 9014 case WRITE_6: { 9015 struct scsi_rw_6 *cdb; 9016 9017 cdb = (struct scsi_rw_6 *)ctsio->cdb; 9018 9019 lba = scsi_3btoul(cdb->addr); 9020 /* only 5 bits are valid in the most significant address byte */ 9021 lba &= 0x1fffff; 9022 num_blocks = cdb->length; 9023 /* 9024 * This is correct according to SBC-2. 9025 */ 9026 if (num_blocks == 0) 9027 num_blocks = 256; 9028 break; 9029 } 9030 case READ_10: 9031 case WRITE_10: { 9032 struct scsi_rw_10 *cdb; 9033 9034 cdb = (struct scsi_rw_10 *)ctsio->cdb; 9035 9036 if (cdb->byte2 & SRW10_FUA) 9037 fua = 1; 9038 if (cdb->byte2 & SRW10_DPO) 9039 dpo = 1; 9040 9041 lba = scsi_4btoul(cdb->addr); 9042 num_blocks = scsi_2btoul(cdb->length); 9043 break; 9044 } 9045 case WRITE_VERIFY_10: { 9046 struct scsi_write_verify_10 *cdb; 9047 9048 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 9049 9050 /* 9051 * XXX KDM we should do actual write verify support at some 9052 * point. This is obviously fake, we're just translating 9053 * things to a write. So we don't even bother checking the 9054 * BYTCHK field, since we don't do any verification. If 9055 * the user asks for it, we'll just pretend we did it. 9056 */ 9057 if (cdb->byte2 & SWV_DPO) 9058 dpo = 1; 9059 9060 lba = scsi_4btoul(cdb->addr); 9061 num_blocks = scsi_2btoul(cdb->length); 9062 break; 9063 } 9064 case READ_12: 9065 case WRITE_12: { 9066 struct scsi_rw_12 *cdb; 9067 9068 cdb = (struct scsi_rw_12 *)ctsio->cdb; 9069 9070 if (cdb->byte2 & SRW12_FUA) 9071 fua = 1; 9072 if (cdb->byte2 & SRW12_DPO) 9073 dpo = 1; 9074 lba = scsi_4btoul(cdb->addr); 9075 num_blocks = scsi_4btoul(cdb->length); 9076 break; 9077 } 9078 case WRITE_VERIFY_12: { 9079 struct scsi_write_verify_12 *cdb; 9080 9081 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 9082 9083 if (cdb->byte2 & SWV_DPO) 9084 dpo = 1; 9085 9086 lba = scsi_4btoul(cdb->addr); 9087 num_blocks = scsi_4btoul(cdb->length); 9088 9089 break; 9090 } 9091 case READ_16: 9092 case WRITE_16: { 9093 struct scsi_rw_16 *cdb; 9094 9095 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9096 9097 if (cdb->byte2 & SRW12_FUA) 9098 fua = 1; 9099 if (cdb->byte2 & SRW12_DPO) 9100 dpo = 1; 9101 9102 lba = scsi_8btou64(cdb->addr); 9103 num_blocks = scsi_4btoul(cdb->length); 9104 break; 9105 } 9106 case WRITE_VERIFY_16: { 9107 struct scsi_write_verify_16 *cdb; 9108 9109 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 9110 9111 if (cdb->byte2 & SWV_DPO) 9112 dpo = 1; 9113 9114 lba = scsi_8btou64(cdb->addr); 9115 num_blocks = scsi_4btoul(cdb->length); 9116 break; 9117 } 9118 default: 9119 /* 9120 * We got a command we don't support. This shouldn't 9121 * happen, commands should be filtered out above us. 9122 */ 9123 ctl_set_invalid_opcode(ctsio); 9124 ctl_done((union ctl_io *)ctsio); 9125 9126 return (CTL_RETVAL_COMPLETE); 9127 break; /* NOTREACHED */ 9128 } 9129 9130 /* 9131 * XXX KDM what do we do with the DPO and FUA bits? FUA might be 9132 * interesting for us, but if RAIDCore is in write-back mode, 9133 * getting it to do write-through for a particular transaction may 9134 * not be possible. 9135 */ 9136 9137 /* 9138 * The first check is to make sure we're in bounds, the second 9139 * check is to catch wrap-around problems. If the lba + num blocks 9140 * is less than the lba, then we've wrapped around and the block 9141 * range is invalid anyway. 9142 */ 9143 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9144 || ((lba + num_blocks) < lba)) { 9145 ctl_set_lba_out_of_range(ctsio); 9146 ctl_done((union ctl_io *)ctsio); 9147 return (CTL_RETVAL_COMPLETE); 9148 } 9149 9150 /* 9151 * According to SBC-3, a transfer length of 0 is not an error. 9152 * Note that this cannot happen with WRITE(6) or READ(6), since 0 9153 * translates to 256 blocks for those commands. 9154 */ 9155 if (num_blocks == 0) { 9156 ctl_set_success(ctsio); 9157 ctl_done((union ctl_io *)ctsio); 9158 return (CTL_RETVAL_COMPLETE); 9159 } 9160 9161 lbalen = (struct ctl_lba_len_flags *) 9162 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9163 lbalen->lba = lba; 9164 lbalen->len = num_blocks; 9165 lbalen->flags = isread ? CTL_LLF_READ : CTL_LLF_WRITE; 9166 9167 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9168 ctsio->kern_rel_offset = 0; 9169 9170 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 9171 9172 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9173 9174 return (retval); 9175 } 9176 9177 static int 9178 ctl_cnw_cont(union ctl_io *io) 9179 { 9180 struct ctl_scsiio *ctsio; 9181 struct ctl_lun *lun; 9182 struct ctl_lba_len_flags *lbalen; 9183 int retval; 9184 9185 ctsio = &io->scsiio; 9186 ctsio->io_hdr.status = CTL_STATUS_NONE; 9187 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 9188 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9189 lbalen = (struct ctl_lba_len_flags *) 9190 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9191 lbalen->flags = CTL_LLF_WRITE; 9192 9193 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 9194 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9195 return (retval); 9196 } 9197 9198 int 9199 ctl_cnw(struct ctl_scsiio *ctsio) 9200 { 9201 struct ctl_lun *lun; 9202 struct ctl_lba_len_flags *lbalen; 9203 uint64_t lba; 9204 uint32_t num_blocks; 9205 int fua, dpo; 9206 int retval; 9207 9208 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9209 9210 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 9211 9212 fua = 0; 9213 dpo = 0; 9214 9215 retval = CTL_RETVAL_COMPLETE; 9216 9217 switch (ctsio->cdb[0]) { 9218 case COMPARE_AND_WRITE: { 9219 struct scsi_compare_and_write *cdb; 9220 9221 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 9222 9223 if (cdb->byte2 & SRW10_FUA) 9224 fua = 1; 9225 if (cdb->byte2 & SRW10_DPO) 9226 dpo = 1; 9227 lba = scsi_8btou64(cdb->addr); 9228 num_blocks = cdb->length; 9229 break; 9230 } 9231 default: 9232 /* 9233 * We got a command we don't support. This shouldn't 9234 * happen, commands should be filtered out above us. 9235 */ 9236 ctl_set_invalid_opcode(ctsio); 9237 ctl_done((union ctl_io *)ctsio); 9238 9239 return (CTL_RETVAL_COMPLETE); 9240 break; /* NOTREACHED */ 9241 } 9242 9243 /* 9244 * XXX KDM what do we do with the DPO and FUA bits? FUA might be 9245 * interesting for us, but if RAIDCore is in write-back mode, 9246 * getting it to do write-through for a particular transaction may 9247 * not be possible. 9248 */ 9249 9250 /* 9251 * The first check is to make sure we're in bounds, the second 9252 * check is to catch wrap-around problems. If the lba + num blocks 9253 * is less than the lba, then we've wrapped around and the block 9254 * range is invalid anyway. 9255 */ 9256 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9257 || ((lba + num_blocks) < lba)) { 9258 ctl_set_lba_out_of_range(ctsio); 9259 ctl_done((union ctl_io *)ctsio); 9260 return (CTL_RETVAL_COMPLETE); 9261 } 9262 9263 /* 9264 * According to SBC-3, a transfer length of 0 is not an error. 9265 */ 9266 if (num_blocks == 0) { 9267 ctl_set_success(ctsio); 9268 ctl_done((union ctl_io *)ctsio); 9269 return (CTL_RETVAL_COMPLETE); 9270 } 9271 9272 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 9273 ctsio->kern_rel_offset = 0; 9274 9275 /* 9276 * Set the IO_CONT flag, so that if this I/O gets passed to 9277 * ctl_data_submit_done(), it'll get passed back to 9278 * ctl_ctl_cnw_cont() for further processing. 9279 */ 9280 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 9281 ctsio->io_cont = ctl_cnw_cont; 9282 9283 lbalen = (struct ctl_lba_len_flags *) 9284 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9285 lbalen->lba = lba; 9286 lbalen->len = num_blocks; 9287 lbalen->flags = CTL_LLF_COMPARE; 9288 9289 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 9290 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9291 return (retval); 9292 } 9293 9294 int 9295 ctl_verify(struct ctl_scsiio *ctsio) 9296 { 9297 struct ctl_lun *lun; 9298 struct ctl_lba_len_flags *lbalen; 9299 uint64_t lba; 9300 uint32_t num_blocks; 9301 int bytchk, dpo; 9302 int retval; 9303 9304 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9305 9306 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 9307 9308 bytchk = 0; 9309 dpo = 0; 9310 retval = CTL_RETVAL_COMPLETE; 9311 9312 switch (ctsio->cdb[0]) { 9313 case VERIFY_10: { 9314 struct scsi_verify_10 *cdb; 9315 9316 cdb = (struct scsi_verify_10 *)ctsio->cdb; 9317 if (cdb->byte2 & SVFY_BYTCHK) 9318 bytchk = 1; 9319 if (cdb->byte2 & SVFY_DPO) 9320 dpo = 1; 9321 lba = scsi_4btoul(cdb->addr); 9322 num_blocks = scsi_2btoul(cdb->length); 9323 break; 9324 } 9325 case VERIFY_12: { 9326 struct scsi_verify_12 *cdb; 9327 9328 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9329 if (cdb->byte2 & SVFY_BYTCHK) 9330 bytchk = 1; 9331 if (cdb->byte2 & SVFY_DPO) 9332 dpo = 1; 9333 lba = scsi_4btoul(cdb->addr); 9334 num_blocks = scsi_4btoul(cdb->length); 9335 break; 9336 } 9337 case VERIFY_16: { 9338 struct scsi_rw_16 *cdb; 9339 9340 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9341 if (cdb->byte2 & SVFY_BYTCHK) 9342 bytchk = 1; 9343 if (cdb->byte2 & SVFY_DPO) 9344 dpo = 1; 9345 lba = scsi_8btou64(cdb->addr); 9346 num_blocks = scsi_4btoul(cdb->length); 9347 break; 9348 } 9349 default: 9350 /* 9351 * We got a command we don't support. This shouldn't 9352 * happen, commands should be filtered out above us. 9353 */ 9354 ctl_set_invalid_opcode(ctsio); 9355 ctl_done((union ctl_io *)ctsio); 9356 return (CTL_RETVAL_COMPLETE); 9357 } 9358 9359 /* 9360 * The first check is to make sure we're in bounds, the second 9361 * check is to catch wrap-around problems. If the lba + num blocks 9362 * is less than the lba, then we've wrapped around and the block 9363 * range is invalid anyway. 9364 */ 9365 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9366 || ((lba + num_blocks) < lba)) { 9367 ctl_set_lba_out_of_range(ctsio); 9368 ctl_done((union ctl_io *)ctsio); 9369 return (CTL_RETVAL_COMPLETE); 9370 } 9371 9372 /* 9373 * According to SBC-3, a transfer length of 0 is not an error. 9374 */ 9375 if (num_blocks == 0) { 9376 ctl_set_success(ctsio); 9377 ctl_done((union ctl_io *)ctsio); 9378 return (CTL_RETVAL_COMPLETE); 9379 } 9380 9381 lbalen = (struct ctl_lba_len_flags *) 9382 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9383 lbalen->lba = lba; 9384 lbalen->len = num_blocks; 9385 if (bytchk) { 9386 lbalen->flags = CTL_LLF_COMPARE; 9387 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9388 } else { 9389 lbalen->flags = CTL_LLF_VERIFY; 9390 ctsio->kern_total_len = 0; 9391 } 9392 ctsio->kern_rel_offset = 0; 9393 9394 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9395 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9396 return (retval); 9397 } 9398 9399 int 9400 ctl_report_luns(struct ctl_scsiio *ctsio) 9401 { 9402 struct scsi_report_luns *cdb; 9403 struct scsi_report_luns_data *lun_data; 9404 struct ctl_lun *lun, *request_lun; 9405 int num_luns, retval; 9406 uint32_t alloc_len, lun_datalen; 9407 int num_filled, well_known; 9408 uint32_t initidx, targ_lun_id, lun_id; 9409 9410 retval = CTL_RETVAL_COMPLETE; 9411 well_known = 0; 9412 9413 cdb = (struct scsi_report_luns *)ctsio->cdb; 9414 9415 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9416 9417 mtx_lock(&control_softc->ctl_lock); 9418 num_luns = control_softc->num_luns; 9419 mtx_unlock(&control_softc->ctl_lock); 9420 9421 switch (cdb->select_report) { 9422 case RPL_REPORT_DEFAULT: 9423 case RPL_REPORT_ALL: 9424 break; 9425 case RPL_REPORT_WELLKNOWN: 9426 well_known = 1; 9427 num_luns = 0; 9428 break; 9429 default: 9430 ctl_set_invalid_field(ctsio, 9431 /*sks_valid*/ 1, 9432 /*command*/ 1, 9433 /*field*/ 2, 9434 /*bit_valid*/ 0, 9435 /*bit*/ 0); 9436 ctl_done((union ctl_io *)ctsio); 9437 return (retval); 9438 break; /* NOTREACHED */ 9439 } 9440 9441 alloc_len = scsi_4btoul(cdb->length); 9442 /* 9443 * The initiator has to allocate at least 16 bytes for this request, 9444 * so he can at least get the header and the first LUN. Otherwise 9445 * we reject the request (per SPC-3 rev 14, section 6.21). 9446 */ 9447 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9448 sizeof(struct scsi_report_luns_lundata))) { 9449 ctl_set_invalid_field(ctsio, 9450 /*sks_valid*/ 1, 9451 /*command*/ 1, 9452 /*field*/ 6, 9453 /*bit_valid*/ 0, 9454 /*bit*/ 0); 9455 ctl_done((union ctl_io *)ctsio); 9456 return (retval); 9457 } 9458 9459 request_lun = (struct ctl_lun *) 9460 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9461 9462 lun_datalen = sizeof(*lun_data) + 9463 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9464 9465 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9466 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9467 ctsio->kern_sg_entries = 0; 9468 9469 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9470 9471 mtx_lock(&control_softc->ctl_lock); 9472 for (targ_lun_id = 0, num_filled = 0; targ_lun_id < CTL_MAX_LUNS && num_filled < num_luns; targ_lun_id++) { 9473 lun_id = ctl_map_lun(ctsio->io_hdr.nexus.targ_port, targ_lun_id); 9474 if (lun_id >= CTL_MAX_LUNS) 9475 continue; 9476 lun = control_softc->ctl_luns[lun_id]; 9477 if (lun == NULL) 9478 continue; 9479 9480 if (targ_lun_id <= 0xff) { 9481 /* 9482 * Peripheral addressing method, bus number 0. 9483 */ 9484 lun_data->luns[num_filled].lundata[0] = 9485 RPL_LUNDATA_ATYP_PERIPH; 9486 lun_data->luns[num_filled].lundata[1] = targ_lun_id; 9487 num_filled++; 9488 } else if (targ_lun_id <= 0x3fff) { 9489 /* 9490 * Flat addressing method. 9491 */ 9492 lun_data->luns[num_filled].lundata[0] = 9493 RPL_LUNDATA_ATYP_FLAT | 9494 (targ_lun_id & RPL_LUNDATA_FLAT_LUN_MASK); 9495 #ifdef OLDCTLHEADERS 9496 (SRLD_ADDR_FLAT << SRLD_ADDR_SHIFT) | 9497 (targ_lun_id & SRLD_BUS_LUN_MASK); 9498 #endif 9499 lun_data->luns[num_filled].lundata[1] = 9500 #ifdef OLDCTLHEADERS 9501 targ_lun_id >> SRLD_BUS_LUN_BITS; 9502 #endif 9503 targ_lun_id >> RPL_LUNDATA_FLAT_LUN_BITS; 9504 num_filled++; 9505 } else { 9506 printf("ctl_report_luns: bogus LUN number %jd, " 9507 "skipping\n", (intmax_t)targ_lun_id); 9508 } 9509 /* 9510 * According to SPC-3, rev 14 section 6.21: 9511 * 9512 * "The execution of a REPORT LUNS command to any valid and 9513 * installed logical unit shall clear the REPORTED LUNS DATA 9514 * HAS CHANGED unit attention condition for all logical 9515 * units of that target with respect to the requesting 9516 * initiator. A valid and installed logical unit is one 9517 * having a PERIPHERAL QUALIFIER of 000b in the standard 9518 * INQUIRY data (see 6.4.2)." 9519 * 9520 * If request_lun is NULL, the LUN this report luns command 9521 * was issued to is either disabled or doesn't exist. In that 9522 * case, we shouldn't clear any pending lun change unit 9523 * attention. 9524 */ 9525 if (request_lun != NULL) { 9526 mtx_lock(&lun->lun_lock); 9527 lun->pending_ua[initidx] &= ~CTL_UA_LUN_CHANGE; 9528 mtx_unlock(&lun->lun_lock); 9529 } 9530 } 9531 mtx_unlock(&control_softc->ctl_lock); 9532 9533 /* 9534 * It's quite possible that we've returned fewer LUNs than we allocated 9535 * space for. Trim it. 9536 */ 9537 lun_datalen = sizeof(*lun_data) + 9538 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9539 9540 if (lun_datalen < alloc_len) { 9541 ctsio->residual = alloc_len - lun_datalen; 9542 ctsio->kern_data_len = lun_datalen; 9543 ctsio->kern_total_len = lun_datalen; 9544 } else { 9545 ctsio->residual = 0; 9546 ctsio->kern_data_len = alloc_len; 9547 ctsio->kern_total_len = alloc_len; 9548 } 9549 ctsio->kern_data_resid = 0; 9550 ctsio->kern_rel_offset = 0; 9551 ctsio->kern_sg_entries = 0; 9552 9553 /* 9554 * We set this to the actual data length, regardless of how much 9555 * space we actually have to return results. If the user looks at 9556 * this value, he'll know whether or not he allocated enough space 9557 * and reissue the command if necessary. We don't support well 9558 * known logical units, so if the user asks for that, return none. 9559 */ 9560 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9561 9562 /* 9563 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9564 * this request. 9565 */ 9566 ctsio->scsi_status = SCSI_STATUS_OK; 9567 9568 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9569 ctsio->be_move_done = ctl_config_move_done; 9570 ctl_datamove((union ctl_io *)ctsio); 9571 9572 return (retval); 9573 } 9574 9575 int 9576 ctl_request_sense(struct ctl_scsiio *ctsio) 9577 { 9578 struct scsi_request_sense *cdb; 9579 struct scsi_sense_data *sense_ptr; 9580 struct ctl_lun *lun; 9581 uint32_t initidx; 9582 int have_error; 9583 scsi_sense_data_type sense_format; 9584 9585 cdb = (struct scsi_request_sense *)ctsio->cdb; 9586 9587 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9588 9589 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9590 9591 /* 9592 * Determine which sense format the user wants. 9593 */ 9594 if (cdb->byte2 & SRS_DESC) 9595 sense_format = SSD_TYPE_DESC; 9596 else 9597 sense_format = SSD_TYPE_FIXED; 9598 9599 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9600 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9601 ctsio->kern_sg_entries = 0; 9602 9603 /* 9604 * struct scsi_sense_data, which is currently set to 256 bytes, is 9605 * larger than the largest allowed value for the length field in the 9606 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9607 */ 9608 ctsio->residual = 0; 9609 ctsio->kern_data_len = cdb->length; 9610 ctsio->kern_total_len = cdb->length; 9611 9612 ctsio->kern_data_resid = 0; 9613 ctsio->kern_rel_offset = 0; 9614 ctsio->kern_sg_entries = 0; 9615 9616 /* 9617 * If we don't have a LUN, we don't have any pending sense. 9618 */ 9619 if (lun == NULL) 9620 goto no_sense; 9621 9622 have_error = 0; 9623 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9624 /* 9625 * Check for pending sense, and then for pending unit attentions. 9626 * Pending sense gets returned first, then pending unit attentions. 9627 */ 9628 mtx_lock(&lun->lun_lock); 9629 #ifdef CTL_WITH_CA 9630 if (ctl_is_set(lun->have_ca, initidx)) { 9631 scsi_sense_data_type stored_format; 9632 9633 /* 9634 * Check to see which sense format was used for the stored 9635 * sense data. 9636 */ 9637 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9638 9639 /* 9640 * If the user requested a different sense format than the 9641 * one we stored, then we need to convert it to the other 9642 * format. If we're going from descriptor to fixed format 9643 * sense data, we may lose things in translation, depending 9644 * on what options were used. 9645 * 9646 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9647 * for some reason we'll just copy it out as-is. 9648 */ 9649 if ((stored_format == SSD_TYPE_FIXED) 9650 && (sense_format == SSD_TYPE_DESC)) 9651 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9652 &lun->pending_sense[initidx], 9653 (struct scsi_sense_data_desc *)sense_ptr); 9654 else if ((stored_format == SSD_TYPE_DESC) 9655 && (sense_format == SSD_TYPE_FIXED)) 9656 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9657 &lun->pending_sense[initidx], 9658 (struct scsi_sense_data_fixed *)sense_ptr); 9659 else 9660 memcpy(sense_ptr, &lun->pending_sense[initidx], 9661 ctl_min(sizeof(*sense_ptr), 9662 sizeof(lun->pending_sense[initidx]))); 9663 9664 ctl_clear_mask(lun->have_ca, initidx); 9665 have_error = 1; 9666 } else 9667 #endif 9668 if (lun->pending_ua[initidx] != CTL_UA_NONE) { 9669 ctl_ua_type ua_type; 9670 9671 ua_type = ctl_build_ua(lun->pending_ua[initidx], 9672 sense_ptr, sense_format); 9673 if (ua_type != CTL_UA_NONE) { 9674 have_error = 1; 9675 /* We're reporting this UA, so clear it */ 9676 lun->pending_ua[initidx] &= ~ua_type; 9677 } 9678 } 9679 mtx_unlock(&lun->lun_lock); 9680 9681 /* 9682 * We already have a pending error, return it. 9683 */ 9684 if (have_error != 0) { 9685 /* 9686 * We report the SCSI status as OK, since the status of the 9687 * request sense command itself is OK. 9688 */ 9689 ctsio->scsi_status = SCSI_STATUS_OK; 9690 9691 /* 9692 * We report 0 for the sense length, because we aren't doing 9693 * autosense in this case. We're reporting sense as 9694 * parameter data. 9695 */ 9696 ctsio->sense_len = 0; 9697 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9698 ctsio->be_move_done = ctl_config_move_done; 9699 ctl_datamove((union ctl_io *)ctsio); 9700 9701 return (CTL_RETVAL_COMPLETE); 9702 } 9703 9704 no_sense: 9705 9706 /* 9707 * No sense information to report, so we report that everything is 9708 * okay. 9709 */ 9710 ctl_set_sense_data(sense_ptr, 9711 lun, 9712 sense_format, 9713 /*current_error*/ 1, 9714 /*sense_key*/ SSD_KEY_NO_SENSE, 9715 /*asc*/ 0x00, 9716 /*ascq*/ 0x00, 9717 SSD_ELEM_NONE); 9718 9719 ctsio->scsi_status = SCSI_STATUS_OK; 9720 9721 /* 9722 * We report 0 for the sense length, because we aren't doing 9723 * autosense in this case. We're reporting sense as parameter data. 9724 */ 9725 ctsio->sense_len = 0; 9726 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9727 ctsio->be_move_done = ctl_config_move_done; 9728 ctl_datamove((union ctl_io *)ctsio); 9729 9730 return (CTL_RETVAL_COMPLETE); 9731 } 9732 9733 int 9734 ctl_tur(struct ctl_scsiio *ctsio) 9735 { 9736 struct ctl_lun *lun; 9737 9738 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9739 9740 CTL_DEBUG_PRINT(("ctl_tur\n")); 9741 9742 if (lun == NULL) 9743 return (EINVAL); 9744 9745 ctsio->scsi_status = SCSI_STATUS_OK; 9746 ctsio->io_hdr.status = CTL_SUCCESS; 9747 9748 ctl_done((union ctl_io *)ctsio); 9749 9750 return (CTL_RETVAL_COMPLETE); 9751 } 9752 9753 #ifdef notyet 9754 static int 9755 ctl_cmddt_inquiry(struct ctl_scsiio *ctsio) 9756 { 9757 9758 } 9759 #endif 9760 9761 static int 9762 ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9763 { 9764 struct scsi_vpd_supported_pages *pages; 9765 int sup_page_size; 9766 struct ctl_lun *lun; 9767 9768 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9769 9770 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9771 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9772 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9773 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9774 ctsio->kern_sg_entries = 0; 9775 9776 if (sup_page_size < alloc_len) { 9777 ctsio->residual = alloc_len - sup_page_size; 9778 ctsio->kern_data_len = sup_page_size; 9779 ctsio->kern_total_len = sup_page_size; 9780 } else { 9781 ctsio->residual = 0; 9782 ctsio->kern_data_len = alloc_len; 9783 ctsio->kern_total_len = alloc_len; 9784 } 9785 ctsio->kern_data_resid = 0; 9786 ctsio->kern_rel_offset = 0; 9787 ctsio->kern_sg_entries = 0; 9788 9789 /* 9790 * The control device is always connected. The disk device, on the 9791 * other hand, may not be online all the time. Need to change this 9792 * to figure out whether the disk device is actually online or not. 9793 */ 9794 if (lun != NULL) 9795 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9796 lun->be_lun->lun_type; 9797 else 9798 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9799 9800 pages->length = SCSI_EVPD_NUM_SUPPORTED_PAGES; 9801 /* Supported VPD pages */ 9802 pages->page_list[0] = SVPD_SUPPORTED_PAGES; 9803 /* Serial Number */ 9804 pages->page_list[1] = SVPD_UNIT_SERIAL_NUMBER; 9805 /* Device Identification */ 9806 pages->page_list[2] = SVPD_DEVICE_ID; 9807 /* SCSI Ports */ 9808 pages->page_list[3] = SVPD_SCSI_PORTS; 9809 /* Third-party Copy */ 9810 pages->page_list[4] = SVPD_SCSI_TPC; 9811 /* Block limits */ 9812 pages->page_list[5] = SVPD_BLOCK_LIMITS; 9813 /* Block Device Characteristics */ 9814 pages->page_list[6] = SVPD_BDC; 9815 /* Logical Block Provisioning */ 9816 pages->page_list[7] = SVPD_LBP; 9817 9818 ctsio->scsi_status = SCSI_STATUS_OK; 9819 9820 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9821 ctsio->be_move_done = ctl_config_move_done; 9822 ctl_datamove((union ctl_io *)ctsio); 9823 9824 return (CTL_RETVAL_COMPLETE); 9825 } 9826 9827 static int 9828 ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9829 { 9830 struct scsi_vpd_unit_serial_number *sn_ptr; 9831 struct ctl_lun *lun; 9832 9833 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9834 9835 ctsio->kern_data_ptr = malloc(sizeof(*sn_ptr), M_CTL, M_WAITOK | M_ZERO); 9836 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9837 ctsio->kern_sg_entries = 0; 9838 9839 if (sizeof(*sn_ptr) < alloc_len) { 9840 ctsio->residual = alloc_len - sizeof(*sn_ptr); 9841 ctsio->kern_data_len = sizeof(*sn_ptr); 9842 ctsio->kern_total_len = sizeof(*sn_ptr); 9843 } else { 9844 ctsio->residual = 0; 9845 ctsio->kern_data_len = alloc_len; 9846 ctsio->kern_total_len = alloc_len; 9847 } 9848 ctsio->kern_data_resid = 0; 9849 ctsio->kern_rel_offset = 0; 9850 ctsio->kern_sg_entries = 0; 9851 9852 /* 9853 * The control device is always connected. The disk device, on the 9854 * other hand, may not be online all the time. Need to change this 9855 * to figure out whether the disk device is actually online or not. 9856 */ 9857 if (lun != NULL) 9858 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9859 lun->be_lun->lun_type; 9860 else 9861 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9862 9863 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9864 sn_ptr->length = ctl_min(sizeof(*sn_ptr) - 4, CTL_SN_LEN); 9865 /* 9866 * If we don't have a LUN, we just leave the serial number as 9867 * all spaces. 9868 */ 9869 memset(sn_ptr->serial_num, 0x20, sizeof(sn_ptr->serial_num)); 9870 if (lun != NULL) { 9871 strncpy((char *)sn_ptr->serial_num, 9872 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9873 } 9874 ctsio->scsi_status = SCSI_STATUS_OK; 9875 9876 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9877 ctsio->be_move_done = ctl_config_move_done; 9878 ctl_datamove((union ctl_io *)ctsio); 9879 9880 return (CTL_RETVAL_COMPLETE); 9881 } 9882 9883 9884 static int 9885 ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9886 { 9887 struct scsi_vpd_device_id *devid_ptr; 9888 struct scsi_vpd_id_descriptor *desc; 9889 struct ctl_softc *ctl_softc; 9890 struct ctl_lun *lun; 9891 struct ctl_port *port; 9892 int data_len; 9893 uint8_t proto; 9894 9895 ctl_softc = control_softc; 9896 9897 port = ctl_softc->ctl_ports[ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]; 9898 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 9899 9900 data_len = sizeof(struct scsi_vpd_device_id) + 9901 sizeof(struct scsi_vpd_id_descriptor) + 9902 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9903 sizeof(struct scsi_vpd_id_descriptor) + 9904 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9905 if (lun && lun->lun_devid) 9906 data_len += lun->lun_devid->len; 9907 if (port->port_devid) 9908 data_len += port->port_devid->len; 9909 if (port->target_devid) 9910 data_len += port->target_devid->len; 9911 9912 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9913 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9914 ctsio->kern_sg_entries = 0; 9915 9916 if (data_len < alloc_len) { 9917 ctsio->residual = alloc_len - data_len; 9918 ctsio->kern_data_len = data_len; 9919 ctsio->kern_total_len = data_len; 9920 } else { 9921 ctsio->residual = 0; 9922 ctsio->kern_data_len = alloc_len; 9923 ctsio->kern_total_len = alloc_len; 9924 } 9925 ctsio->kern_data_resid = 0; 9926 ctsio->kern_rel_offset = 0; 9927 ctsio->kern_sg_entries = 0; 9928 9929 /* 9930 * The control device is always connected. The disk device, on the 9931 * other hand, may not be online all the time. 9932 */ 9933 if (lun != NULL) 9934 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9935 lun->be_lun->lun_type; 9936 else 9937 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9938 devid_ptr->page_code = SVPD_DEVICE_ID; 9939 scsi_ulto2b(data_len - 4, devid_ptr->length); 9940 9941 if (port->port_type == CTL_PORT_FC) 9942 proto = SCSI_PROTO_FC << 4; 9943 else if (port->port_type == CTL_PORT_ISCSI) 9944 proto = SCSI_PROTO_ISCSI << 4; 9945 else 9946 proto = SCSI_PROTO_SPI << 4; 9947 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9948 9949 /* 9950 * We're using a LUN association here. i.e., this device ID is a 9951 * per-LUN identifier. 9952 */ 9953 if (lun && lun->lun_devid) { 9954 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9955 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9956 lun->lun_devid->len); 9957 } 9958 9959 /* 9960 * This is for the WWPN which is a port association. 9961 */ 9962 if (port->port_devid) { 9963 memcpy(desc, port->port_devid->data, port->port_devid->len); 9964 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9965 port->port_devid->len); 9966 } 9967 9968 /* 9969 * This is for the Relative Target Port(type 4h) identifier 9970 */ 9971 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9972 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9973 SVPD_ID_TYPE_RELTARG; 9974 desc->length = 4; 9975 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9976 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9977 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9978 9979 /* 9980 * This is for the Target Port Group(type 5h) identifier 9981 */ 9982 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9983 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9984 SVPD_ID_TYPE_TPORTGRP; 9985 desc->length = 4; 9986 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port / CTL_MAX_PORTS + 1, 9987 &desc->identifier[2]); 9988 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9989 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9990 9991 /* 9992 * This is for the Target identifier 9993 */ 9994 if (port->target_devid) { 9995 memcpy(desc, port->target_devid->data, port->target_devid->len); 9996 } 9997 9998 ctsio->scsi_status = SCSI_STATUS_OK; 9999 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10000 ctsio->be_move_done = ctl_config_move_done; 10001 ctl_datamove((union ctl_io *)ctsio); 10002 10003 return (CTL_RETVAL_COMPLETE); 10004 } 10005 10006 static int 10007 ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 10008 { 10009 struct ctl_softc *softc = control_softc; 10010 struct scsi_vpd_scsi_ports *sp; 10011 struct scsi_vpd_port_designation *pd; 10012 struct scsi_vpd_port_designation_cont *pdc; 10013 struct ctl_lun *lun; 10014 struct ctl_port *port; 10015 int data_len, num_target_ports, iid_len, id_len, g, pg, p; 10016 int num_target_port_groups, single; 10017 10018 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10019 10020 single = ctl_is_single; 10021 if (single) 10022 num_target_port_groups = 1; 10023 else 10024 num_target_port_groups = NUM_TARGET_PORT_GROUPS; 10025 num_target_ports = 0; 10026 iid_len = 0; 10027 id_len = 0; 10028 mtx_lock(&softc->ctl_lock); 10029 STAILQ_FOREACH(port, &softc->port_list, links) { 10030 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10031 continue; 10032 if (lun != NULL && 10033 ctl_map_lun_back(port->targ_port, lun->lun) >= 10034 CTL_MAX_LUNS) 10035 continue; 10036 num_target_ports++; 10037 if (port->init_devid) 10038 iid_len += port->init_devid->len; 10039 if (port->port_devid) 10040 id_len += port->port_devid->len; 10041 } 10042 mtx_unlock(&softc->ctl_lock); 10043 10044 data_len = sizeof(struct scsi_vpd_scsi_ports) + num_target_port_groups * 10045 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 10046 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 10047 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10048 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 10049 ctsio->kern_sg_entries = 0; 10050 10051 if (data_len < alloc_len) { 10052 ctsio->residual = alloc_len - data_len; 10053 ctsio->kern_data_len = data_len; 10054 ctsio->kern_total_len = data_len; 10055 } else { 10056 ctsio->residual = 0; 10057 ctsio->kern_data_len = alloc_len; 10058 ctsio->kern_total_len = alloc_len; 10059 } 10060 ctsio->kern_data_resid = 0; 10061 ctsio->kern_rel_offset = 0; 10062 ctsio->kern_sg_entries = 0; 10063 10064 /* 10065 * The control device is always connected. The disk device, on the 10066 * other hand, may not be online all the time. Need to change this 10067 * to figure out whether the disk device is actually online or not. 10068 */ 10069 if (lun != NULL) 10070 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 10071 lun->be_lun->lun_type; 10072 else 10073 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10074 10075 sp->page_code = SVPD_SCSI_PORTS; 10076 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 10077 sp->page_length); 10078 pd = &sp->design[0]; 10079 10080 mtx_lock(&softc->ctl_lock); 10081 if (softc->flags & CTL_FLAG_MASTER_SHELF) 10082 pg = 0; 10083 else 10084 pg = 1; 10085 for (g = 0; g < num_target_port_groups; g++) { 10086 STAILQ_FOREACH(port, &softc->port_list, links) { 10087 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 10088 continue; 10089 if (lun != NULL && 10090 ctl_map_lun_back(port->targ_port, lun->lun) >= 10091 CTL_MAX_LUNS) 10092 continue; 10093 p = port->targ_port % CTL_MAX_PORTS + g * CTL_MAX_PORTS; 10094 scsi_ulto2b(p, pd->relative_port_id); 10095 if (port->init_devid && g == pg) { 10096 iid_len = port->init_devid->len; 10097 memcpy(pd->initiator_transportid, 10098 port->init_devid->data, port->init_devid->len); 10099 } else 10100 iid_len = 0; 10101 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 10102 pdc = (struct scsi_vpd_port_designation_cont *) 10103 (&pd->initiator_transportid[iid_len]); 10104 if (port->port_devid && g == pg) { 10105 id_len = port->port_devid->len; 10106 memcpy(pdc->target_port_descriptors, 10107 port->port_devid->data, port->port_devid->len); 10108 } else 10109 id_len = 0; 10110 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 10111 pd = (struct scsi_vpd_port_designation *) 10112 ((uint8_t *)pdc->target_port_descriptors + id_len); 10113 } 10114 } 10115 mtx_unlock(&softc->ctl_lock); 10116 10117 ctsio->scsi_status = SCSI_STATUS_OK; 10118 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10119 ctsio->be_move_done = ctl_config_move_done; 10120 ctl_datamove((union ctl_io *)ctsio); 10121 10122 return (CTL_RETVAL_COMPLETE); 10123 } 10124 10125 static int 10126 ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 10127 { 10128 struct scsi_vpd_block_limits *bl_ptr; 10129 struct ctl_lun *lun; 10130 int bs; 10131 10132 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10133 10134 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 10135 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 10136 ctsio->kern_sg_entries = 0; 10137 10138 if (sizeof(*bl_ptr) < alloc_len) { 10139 ctsio->residual = alloc_len - sizeof(*bl_ptr); 10140 ctsio->kern_data_len = sizeof(*bl_ptr); 10141 ctsio->kern_total_len = sizeof(*bl_ptr); 10142 } else { 10143 ctsio->residual = 0; 10144 ctsio->kern_data_len = alloc_len; 10145 ctsio->kern_total_len = alloc_len; 10146 } 10147 ctsio->kern_data_resid = 0; 10148 ctsio->kern_rel_offset = 0; 10149 ctsio->kern_sg_entries = 0; 10150 10151 /* 10152 * The control device is always connected. The disk device, on the 10153 * other hand, may not be online all the time. Need to change this 10154 * to figure out whether the disk device is actually online or not. 10155 */ 10156 if (lun != NULL) 10157 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10158 lun->be_lun->lun_type; 10159 else 10160 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10161 10162 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 10163 scsi_ulto2b(sizeof(*bl_ptr), bl_ptr->page_length); 10164 bl_ptr->max_cmp_write_len = 0xff; 10165 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 10166 if (lun != NULL) { 10167 bs = lun->be_lun->blocksize; 10168 scsi_ulto4b(MAXPHYS / bs, bl_ptr->opt_txfer_len); 10169 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10170 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_lba_cnt); 10171 scsi_ulto4b(0xffffffff, bl_ptr->max_unmap_blk_cnt); 10172 if (lun->be_lun->pblockexp != 0) { 10173 scsi_ulto4b((1 << lun->be_lun->pblockexp), 10174 bl_ptr->opt_unmap_grain); 10175 scsi_ulto4b(0x80000000 | lun->be_lun->pblockoff, 10176 bl_ptr->unmap_grain_align); 10177 } 10178 } 10179 } 10180 scsi_u64to8b(UINT64_MAX, bl_ptr->max_write_same_length); 10181 10182 ctsio->scsi_status = SCSI_STATUS_OK; 10183 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10184 ctsio->be_move_done = ctl_config_move_done; 10185 ctl_datamove((union ctl_io *)ctsio); 10186 10187 return (CTL_RETVAL_COMPLETE); 10188 } 10189 10190 static int 10191 ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 10192 { 10193 struct scsi_vpd_block_device_characteristics *bdc_ptr; 10194 struct ctl_lun *lun; 10195 10196 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10197 10198 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 10199 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 10200 ctsio->kern_sg_entries = 0; 10201 10202 if (sizeof(*bdc_ptr) < alloc_len) { 10203 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 10204 ctsio->kern_data_len = sizeof(*bdc_ptr); 10205 ctsio->kern_total_len = sizeof(*bdc_ptr); 10206 } else { 10207 ctsio->residual = 0; 10208 ctsio->kern_data_len = alloc_len; 10209 ctsio->kern_total_len = alloc_len; 10210 } 10211 ctsio->kern_data_resid = 0; 10212 ctsio->kern_rel_offset = 0; 10213 ctsio->kern_sg_entries = 0; 10214 10215 /* 10216 * The control device is always connected. The disk device, on the 10217 * other hand, may not be online all the time. Need to change this 10218 * to figure out whether the disk device is actually online or not. 10219 */ 10220 if (lun != NULL) 10221 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10222 lun->be_lun->lun_type; 10223 else 10224 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10225 bdc_ptr->page_code = SVPD_BDC; 10226 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 10227 scsi_ulto2b(SVPD_NON_ROTATING, bdc_ptr->medium_rotation_rate); 10228 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 10229 10230 ctsio->scsi_status = SCSI_STATUS_OK; 10231 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10232 ctsio->be_move_done = ctl_config_move_done; 10233 ctl_datamove((union ctl_io *)ctsio); 10234 10235 return (CTL_RETVAL_COMPLETE); 10236 } 10237 10238 static int 10239 ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10240 { 10241 struct scsi_vpd_logical_block_prov *lbp_ptr; 10242 struct ctl_lun *lun; 10243 10244 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10245 10246 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10247 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10248 ctsio->kern_sg_entries = 0; 10249 10250 if (sizeof(*lbp_ptr) < alloc_len) { 10251 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10252 ctsio->kern_data_len = sizeof(*lbp_ptr); 10253 ctsio->kern_total_len = sizeof(*lbp_ptr); 10254 } else { 10255 ctsio->residual = 0; 10256 ctsio->kern_data_len = alloc_len; 10257 ctsio->kern_total_len = alloc_len; 10258 } 10259 ctsio->kern_data_resid = 0; 10260 ctsio->kern_rel_offset = 0; 10261 ctsio->kern_sg_entries = 0; 10262 10263 /* 10264 * The control device is always connected. The disk device, on the 10265 * other hand, may not be online all the time. Need to change this 10266 * to figure out whether the disk device is actually online or not. 10267 */ 10268 if (lun != NULL) 10269 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10270 lun->be_lun->lun_type; 10271 else 10272 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10273 10274 lbp_ptr->page_code = SVPD_LBP; 10275 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10276 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10277 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10278 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10279 lbp_ptr->prov_type = SVPD_LBP_RESOURCE; 10280 } 10281 10282 ctsio->scsi_status = SCSI_STATUS_OK; 10283 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10284 ctsio->be_move_done = ctl_config_move_done; 10285 ctl_datamove((union ctl_io *)ctsio); 10286 10287 return (CTL_RETVAL_COMPLETE); 10288 } 10289 10290 static int 10291 ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10292 { 10293 struct scsi_inquiry *cdb; 10294 struct ctl_lun *lun; 10295 int alloc_len, retval; 10296 10297 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10298 cdb = (struct scsi_inquiry *)ctsio->cdb; 10299 10300 retval = CTL_RETVAL_COMPLETE; 10301 10302 alloc_len = scsi_2btoul(cdb->length); 10303 10304 switch (cdb->page_code) { 10305 case SVPD_SUPPORTED_PAGES: 10306 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10307 break; 10308 case SVPD_UNIT_SERIAL_NUMBER: 10309 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10310 break; 10311 case SVPD_DEVICE_ID: 10312 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10313 break; 10314 case SVPD_SCSI_PORTS: 10315 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10316 break; 10317 case SVPD_SCSI_TPC: 10318 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10319 break; 10320 case SVPD_BLOCK_LIMITS: 10321 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10322 break; 10323 case SVPD_BDC: 10324 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10325 break; 10326 case SVPD_LBP: 10327 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10328 break; 10329 default: 10330 ctl_set_invalid_field(ctsio, 10331 /*sks_valid*/ 1, 10332 /*command*/ 1, 10333 /*field*/ 2, 10334 /*bit_valid*/ 0, 10335 /*bit*/ 0); 10336 ctl_done((union ctl_io *)ctsio); 10337 retval = CTL_RETVAL_COMPLETE; 10338 break; 10339 } 10340 10341 return (retval); 10342 } 10343 10344 static int 10345 ctl_inquiry_std(struct ctl_scsiio *ctsio) 10346 { 10347 struct scsi_inquiry_data *inq_ptr; 10348 struct scsi_inquiry *cdb; 10349 struct ctl_softc *ctl_softc; 10350 struct ctl_lun *lun; 10351 char *val; 10352 uint32_t alloc_len; 10353 ctl_port_type port_type; 10354 10355 ctl_softc = control_softc; 10356 10357 /* 10358 * Figure out whether we're talking to a Fibre Channel port or not. 10359 * We treat the ioctl front end, and any SCSI adapters, as packetized 10360 * SCSI front ends. 10361 */ 10362 port_type = ctl_softc->ctl_ports[ 10363 ctl_port_idx(ctsio->io_hdr.nexus.targ_port)]->port_type; 10364 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10365 port_type = CTL_PORT_SCSI; 10366 10367 lun = ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 10368 cdb = (struct scsi_inquiry *)ctsio->cdb; 10369 alloc_len = scsi_2btoul(cdb->length); 10370 10371 /* 10372 * We malloc the full inquiry data size here and fill it 10373 * in. If the user only asks for less, we'll give him 10374 * that much. 10375 */ 10376 ctsio->kern_data_ptr = malloc(sizeof(*inq_ptr), M_CTL, M_WAITOK | M_ZERO); 10377 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10378 ctsio->kern_sg_entries = 0; 10379 ctsio->kern_data_resid = 0; 10380 ctsio->kern_rel_offset = 0; 10381 10382 if (sizeof(*inq_ptr) < alloc_len) { 10383 ctsio->residual = alloc_len - sizeof(*inq_ptr); 10384 ctsio->kern_data_len = sizeof(*inq_ptr); 10385 ctsio->kern_total_len = sizeof(*inq_ptr); 10386 } else { 10387 ctsio->residual = 0; 10388 ctsio->kern_data_len = alloc_len; 10389 ctsio->kern_total_len = alloc_len; 10390 } 10391 10392 /* 10393 * If we have a LUN configured, report it as connected. Otherwise, 10394 * report that it is offline or no device is supported, depending 10395 * on the value of inquiry_pq_no_lun. 10396 * 10397 * According to the spec (SPC-4 r34), the peripheral qualifier 10398 * SID_QUAL_LU_OFFLINE (001b) is used in the following scenario: 10399 * 10400 * "A peripheral device having the specified peripheral device type 10401 * is not connected to this logical unit. However, the device 10402 * server is capable of supporting the specified peripheral device 10403 * type on this logical unit." 10404 * 10405 * According to the same spec, the peripheral qualifier 10406 * SID_QUAL_BAD_LU (011b) is used in this scenario: 10407 * 10408 * "The device server is not capable of supporting a peripheral 10409 * device on this logical unit. For this peripheral qualifier the 10410 * peripheral device type shall be set to 1Fh. All other peripheral 10411 * device type values are reserved for this peripheral qualifier." 10412 * 10413 * Given the text, it would seem that we probably want to report that 10414 * the LUN is offline here. There is no LUN connected, but we can 10415 * support a LUN at the given LUN number. 10416 * 10417 * In the real world, though, it sounds like things are a little 10418 * different: 10419 * 10420 * - Linux, when presented with a LUN with the offline peripheral 10421 * qualifier, will create an sg driver instance for it. So when 10422 * you attach it to CTL, you wind up with a ton of sg driver 10423 * instances. (One for every LUN that Linux bothered to probe.) 10424 * Linux does this despite the fact that it issues a REPORT LUNs 10425 * to LUN 0 to get the inventory of supported LUNs. 10426 * 10427 * - There is other anecdotal evidence (from Emulex folks) about 10428 * arrays that use the offline peripheral qualifier for LUNs that 10429 * are on the "passive" path in an active/passive array. 10430 * 10431 * So the solution is provide a hopefully reasonable default 10432 * (return bad/no LUN) and allow the user to change the behavior 10433 * with a tunable/sysctl variable. 10434 */ 10435 if (lun != NULL) 10436 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10437 lun->be_lun->lun_type; 10438 else if (ctl_softc->inquiry_pq_no_lun == 0) 10439 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10440 else 10441 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10442 10443 /* RMB in byte 2 is 0 */ 10444 inq_ptr->version = SCSI_REV_SPC4; 10445 10446 /* 10447 * According to SAM-3, even if a device only supports a single 10448 * level of LUN addressing, it should still set the HISUP bit: 10449 * 10450 * 4.9.1 Logical unit numbers overview 10451 * 10452 * All logical unit number formats described in this standard are 10453 * hierarchical in structure even when only a single level in that 10454 * hierarchy is used. The HISUP bit shall be set to one in the 10455 * standard INQUIRY data (see SPC-2) when any logical unit number 10456 * format described in this standard is used. Non-hierarchical 10457 * formats are outside the scope of this standard. 10458 * 10459 * Therefore we set the HiSup bit here. 10460 * 10461 * The reponse format is 2, per SPC-3. 10462 */ 10463 inq_ptr->response_format = SID_HiSup | 2; 10464 10465 inq_ptr->additional_length = 10466 offsetof(struct scsi_inquiry_data, vendor_specific1) - 10467 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10468 CTL_DEBUG_PRINT(("additional_length = %d\n", 10469 inq_ptr->additional_length)); 10470 10471 inq_ptr->spc3_flags = SPC3_SID_3PC; 10472 if (!ctl_is_single) 10473 inq_ptr->spc3_flags |= SPC3_SID_TPGS_IMPLICIT; 10474 /* 16 bit addressing */ 10475 if (port_type == CTL_PORT_SCSI) 10476 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10477 /* XXX set the SID_MultiP bit here if we're actually going to 10478 respond on multiple ports */ 10479 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10480 10481 /* 16 bit data bus, synchronous transfers */ 10482 if (port_type == CTL_PORT_SCSI) 10483 inq_ptr->flags = SID_WBus16 | SID_Sync; 10484 /* 10485 * XXX KDM do we want to support tagged queueing on the control 10486 * device at all? 10487 */ 10488 if ((lun == NULL) 10489 || (lun->be_lun->lun_type != T_PROCESSOR)) 10490 inq_ptr->flags |= SID_CmdQue; 10491 /* 10492 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10493 * We have 8 bytes for the vendor name, and 16 bytes for the device 10494 * name and 4 bytes for the revision. 10495 */ 10496 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10497 "vendor")) == NULL) { 10498 strcpy(inq_ptr->vendor, CTL_VENDOR); 10499 } else { 10500 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10501 strncpy(inq_ptr->vendor, val, 10502 min(sizeof(inq_ptr->vendor), strlen(val))); 10503 } 10504 if (lun == NULL) { 10505 strcpy(inq_ptr->product, CTL_DIRECT_PRODUCT); 10506 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10507 switch (lun->be_lun->lun_type) { 10508 case T_DIRECT: 10509 strcpy(inq_ptr->product, CTL_DIRECT_PRODUCT); 10510 break; 10511 case T_PROCESSOR: 10512 strcpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT); 10513 break; 10514 default: 10515 strcpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT); 10516 break; 10517 } 10518 } else { 10519 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10520 strncpy(inq_ptr->product, val, 10521 min(sizeof(inq_ptr->product), strlen(val))); 10522 } 10523 10524 /* 10525 * XXX make this a macro somewhere so it automatically gets 10526 * incremented when we make changes. 10527 */ 10528 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10529 "revision")) == NULL) { 10530 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10531 } else { 10532 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10533 strncpy(inq_ptr->revision, val, 10534 min(sizeof(inq_ptr->revision), strlen(val))); 10535 } 10536 10537 /* 10538 * For parallel SCSI, we support double transition and single 10539 * transition clocking. We also support QAS (Quick Arbitration 10540 * and Selection) and Information Unit transfers on both the 10541 * control and array devices. 10542 */ 10543 if (port_type == CTL_PORT_SCSI) 10544 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10545 SID_SPI_IUS; 10546 10547 /* SAM-5 (no version claimed) */ 10548 scsi_ulto2b(0x00A0, inq_ptr->version1); 10549 /* SPC-4 (no version claimed) */ 10550 scsi_ulto2b(0x0460, inq_ptr->version2); 10551 if (port_type == CTL_PORT_FC) { 10552 /* FCP-2 ANSI INCITS.350:2003 */ 10553 scsi_ulto2b(0x0917, inq_ptr->version3); 10554 } else if (port_type == CTL_PORT_SCSI) { 10555 /* SPI-4 ANSI INCITS.362:200x */ 10556 scsi_ulto2b(0x0B56, inq_ptr->version3); 10557 } else if (port_type == CTL_PORT_ISCSI) { 10558 /* iSCSI (no version claimed) */ 10559 scsi_ulto2b(0x0960, inq_ptr->version3); 10560 } else if (port_type == CTL_PORT_SAS) { 10561 /* SAS (no version claimed) */ 10562 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10563 } 10564 10565 if (lun == NULL) { 10566 /* SBC-3 (no version claimed) */ 10567 scsi_ulto2b(0x04C0, inq_ptr->version4); 10568 } else { 10569 switch (lun->be_lun->lun_type) { 10570 case T_DIRECT: 10571 /* SBC-3 (no version claimed) */ 10572 scsi_ulto2b(0x04C0, inq_ptr->version4); 10573 break; 10574 case T_PROCESSOR: 10575 default: 10576 break; 10577 } 10578 } 10579 10580 ctsio->scsi_status = SCSI_STATUS_OK; 10581 if (ctsio->kern_data_len > 0) { 10582 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10583 ctsio->be_move_done = ctl_config_move_done; 10584 ctl_datamove((union ctl_io *)ctsio); 10585 } else { 10586 ctsio->io_hdr.status = CTL_SUCCESS; 10587 ctl_done((union ctl_io *)ctsio); 10588 } 10589 10590 return (CTL_RETVAL_COMPLETE); 10591 } 10592 10593 int 10594 ctl_inquiry(struct ctl_scsiio *ctsio) 10595 { 10596 struct scsi_inquiry *cdb; 10597 int retval; 10598 10599 cdb = (struct scsi_inquiry *)ctsio->cdb; 10600 10601 retval = 0; 10602 10603 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10604 10605 /* 10606 * Right now, we don't support the CmdDt inquiry information. 10607 * This would be nice to support in the future. When we do 10608 * support it, we should change this test so that it checks to make 10609 * sure SI_EVPD and SI_CMDDT aren't both set at the same time. 10610 */ 10611 #ifdef notyet 10612 if (((cdb->byte2 & SI_EVPD) 10613 && (cdb->byte2 & SI_CMDDT))) 10614 #endif 10615 if (cdb->byte2 & SI_CMDDT) { 10616 /* 10617 * Point to the SI_CMDDT bit. We might change this 10618 * when we support SI_CMDDT, but since both bits would be 10619 * "wrong", this should probably just stay as-is then. 10620 */ 10621 ctl_set_invalid_field(ctsio, 10622 /*sks_valid*/ 1, 10623 /*command*/ 1, 10624 /*field*/ 1, 10625 /*bit_valid*/ 1, 10626 /*bit*/ 1); 10627 ctl_done((union ctl_io *)ctsio); 10628 return (CTL_RETVAL_COMPLETE); 10629 } 10630 if (cdb->byte2 & SI_EVPD) 10631 retval = ctl_inquiry_evpd(ctsio); 10632 #ifdef notyet 10633 else if (cdb->byte2 & SI_CMDDT) 10634 retval = ctl_inquiry_cmddt(ctsio); 10635 #endif 10636 else 10637 retval = ctl_inquiry_std(ctsio); 10638 10639 return (retval); 10640 } 10641 10642 /* 10643 * For known CDB types, parse the LBA and length. 10644 */ 10645 static int 10646 ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint32_t *len) 10647 { 10648 if (io->io_hdr.io_type != CTL_IO_SCSI) 10649 return (1); 10650 10651 switch (io->scsiio.cdb[0]) { 10652 case COMPARE_AND_WRITE: { 10653 struct scsi_compare_and_write *cdb; 10654 10655 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10656 10657 *lba = scsi_8btou64(cdb->addr); 10658 *len = cdb->length; 10659 break; 10660 } 10661 case READ_6: 10662 case WRITE_6: { 10663 struct scsi_rw_6 *cdb; 10664 10665 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10666 10667 *lba = scsi_3btoul(cdb->addr); 10668 /* only 5 bits are valid in the most significant address byte */ 10669 *lba &= 0x1fffff; 10670 *len = cdb->length; 10671 break; 10672 } 10673 case READ_10: 10674 case WRITE_10: { 10675 struct scsi_rw_10 *cdb; 10676 10677 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10678 10679 *lba = scsi_4btoul(cdb->addr); 10680 *len = scsi_2btoul(cdb->length); 10681 break; 10682 } 10683 case WRITE_VERIFY_10: { 10684 struct scsi_write_verify_10 *cdb; 10685 10686 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10687 10688 *lba = scsi_4btoul(cdb->addr); 10689 *len = scsi_2btoul(cdb->length); 10690 break; 10691 } 10692 case READ_12: 10693 case WRITE_12: { 10694 struct scsi_rw_12 *cdb; 10695 10696 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10697 10698 *lba = scsi_4btoul(cdb->addr); 10699 *len = scsi_4btoul(cdb->length); 10700 break; 10701 } 10702 case WRITE_VERIFY_12: { 10703 struct scsi_write_verify_12 *cdb; 10704 10705 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10706 10707 *lba = scsi_4btoul(cdb->addr); 10708 *len = scsi_4btoul(cdb->length); 10709 break; 10710 } 10711 case READ_16: 10712 case WRITE_16: { 10713 struct scsi_rw_16 *cdb; 10714 10715 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10716 10717 *lba = scsi_8btou64(cdb->addr); 10718 *len = scsi_4btoul(cdb->length); 10719 break; 10720 } 10721 case WRITE_VERIFY_16: { 10722 struct scsi_write_verify_16 *cdb; 10723 10724 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10725 10726 10727 *lba = scsi_8btou64(cdb->addr); 10728 *len = scsi_4btoul(cdb->length); 10729 break; 10730 } 10731 case WRITE_SAME_10: { 10732 struct scsi_write_same_10 *cdb; 10733 10734 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10735 10736 *lba = scsi_4btoul(cdb->addr); 10737 *len = scsi_2btoul(cdb->length); 10738 break; 10739 } 10740 case WRITE_SAME_16: { 10741 struct scsi_write_same_16 *cdb; 10742 10743 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10744 10745 *lba = scsi_8btou64(cdb->addr); 10746 *len = scsi_4btoul(cdb->length); 10747 break; 10748 } 10749 case VERIFY_10: { 10750 struct scsi_verify_10 *cdb; 10751 10752 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10753 10754 *lba = scsi_4btoul(cdb->addr); 10755 *len = scsi_2btoul(cdb->length); 10756 break; 10757 } 10758 case VERIFY_12: { 10759 struct scsi_verify_12 *cdb; 10760 10761 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10762 10763 *lba = scsi_4btoul(cdb->addr); 10764 *len = scsi_4btoul(cdb->length); 10765 break; 10766 } 10767 case VERIFY_16: { 10768 struct scsi_verify_16 *cdb; 10769 10770 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10771 10772 *lba = scsi_8btou64(cdb->addr); 10773 *len = scsi_4btoul(cdb->length); 10774 break; 10775 } 10776 default: 10777 return (1); 10778 break; /* NOTREACHED */ 10779 } 10780 10781 return (0); 10782 } 10783 10784 static ctl_action 10785 ctl_extent_check_lba(uint64_t lba1, uint32_t len1, uint64_t lba2, uint32_t len2) 10786 { 10787 uint64_t endlba1, endlba2; 10788 10789 endlba1 = lba1 + len1 - 1; 10790 endlba2 = lba2 + len2 - 1; 10791 10792 if ((endlba1 < lba2) 10793 || (endlba2 < lba1)) 10794 return (CTL_ACTION_PASS); 10795 else 10796 return (CTL_ACTION_BLOCK); 10797 } 10798 10799 static ctl_action 10800 ctl_extent_check(union ctl_io *io1, union ctl_io *io2) 10801 { 10802 uint64_t lba1, lba2; 10803 uint32_t len1, len2; 10804 int retval; 10805 10806 retval = ctl_get_lba_len(io1, &lba1, &len1); 10807 if (retval != 0) 10808 return (CTL_ACTION_ERROR); 10809 10810 retval = ctl_get_lba_len(io2, &lba2, &len2); 10811 if (retval != 0) 10812 return (CTL_ACTION_ERROR); 10813 10814 return (ctl_extent_check_lba(lba1, len1, lba2, len2)); 10815 } 10816 10817 static ctl_action 10818 ctl_check_for_blockage(union ctl_io *pending_io, union ctl_io *ooa_io) 10819 { 10820 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10821 ctl_serialize_action *serialize_row; 10822 10823 /* 10824 * The initiator attempted multiple untagged commands at the same 10825 * time. Can't do that. 10826 */ 10827 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10828 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10829 && ((pending_io->io_hdr.nexus.targ_port == 10830 ooa_io->io_hdr.nexus.targ_port) 10831 && (pending_io->io_hdr.nexus.initid.id == 10832 ooa_io->io_hdr.nexus.initid.id)) 10833 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10834 return (CTL_ACTION_OVERLAP); 10835 10836 /* 10837 * The initiator attempted to send multiple tagged commands with 10838 * the same ID. (It's fine if different initiators have the same 10839 * tag ID.) 10840 * 10841 * Even if all of those conditions are true, we don't kill the I/O 10842 * if the command ahead of us has been aborted. We won't end up 10843 * sending it to the FETD, and it's perfectly legal to resend a 10844 * command with the same tag number as long as the previous 10845 * instance of this tag number has been aborted somehow. 10846 */ 10847 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10848 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10849 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10850 && ((pending_io->io_hdr.nexus.targ_port == 10851 ooa_io->io_hdr.nexus.targ_port) 10852 && (pending_io->io_hdr.nexus.initid.id == 10853 ooa_io->io_hdr.nexus.initid.id)) 10854 && ((ooa_io->io_hdr.flags & CTL_FLAG_ABORT) == 0)) 10855 return (CTL_ACTION_OVERLAP_TAG); 10856 10857 /* 10858 * If we get a head of queue tag, SAM-3 says that we should 10859 * immediately execute it. 10860 * 10861 * What happens if this command would normally block for some other 10862 * reason? e.g. a request sense with a head of queue tag 10863 * immediately after a write. Normally that would block, but this 10864 * will result in its getting executed immediately... 10865 * 10866 * We currently return "pass" instead of "skip", so we'll end up 10867 * going through the rest of the queue to check for overlapped tags. 10868 * 10869 * XXX KDM check for other types of blockage first?? 10870 */ 10871 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10872 return (CTL_ACTION_PASS); 10873 10874 /* 10875 * Ordered tags have to block until all items ahead of them 10876 * have completed. If we get called with an ordered tag, we always 10877 * block, if something else is ahead of us in the queue. 10878 */ 10879 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 10880 return (CTL_ACTION_BLOCK); 10881 10882 /* 10883 * Simple tags get blocked until all head of queue and ordered tags 10884 * ahead of them have completed. I'm lumping untagged commands in 10885 * with simple tags here. XXX KDM is that the right thing to do? 10886 */ 10887 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10888 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 10889 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10890 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 10891 return (CTL_ACTION_BLOCK); 10892 10893 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio); 10894 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio); 10895 10896 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 10897 10898 switch (serialize_row[pending_entry->seridx]) { 10899 case CTL_SER_BLOCK: 10900 return (CTL_ACTION_BLOCK); 10901 break; /* NOTREACHED */ 10902 case CTL_SER_EXTENT: 10903 return (ctl_extent_check(pending_io, ooa_io)); 10904 break; /* NOTREACHED */ 10905 case CTL_SER_PASS: 10906 return (CTL_ACTION_PASS); 10907 break; /* NOTREACHED */ 10908 case CTL_SER_SKIP: 10909 return (CTL_ACTION_SKIP); 10910 break; 10911 default: 10912 panic("invalid serialization value %d", 10913 serialize_row[pending_entry->seridx]); 10914 break; /* NOTREACHED */ 10915 } 10916 10917 return (CTL_ACTION_ERROR); 10918 } 10919 10920 /* 10921 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 10922 * Assumptions: 10923 * - pending_io is generally either incoming, or on the blocked queue 10924 * - starting I/O is the I/O we want to start the check with. 10925 */ 10926 static ctl_action 10927 ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 10928 union ctl_io *starting_io) 10929 { 10930 union ctl_io *ooa_io; 10931 ctl_action action; 10932 10933 mtx_assert(&lun->lun_lock, MA_OWNED); 10934 10935 /* 10936 * Run back along the OOA queue, starting with the current 10937 * blocked I/O and going through every I/O before it on the 10938 * queue. If starting_io is NULL, we'll just end up returning 10939 * CTL_ACTION_PASS. 10940 */ 10941 for (ooa_io = starting_io; ooa_io != NULL; 10942 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 10943 ooa_links)){ 10944 10945 /* 10946 * This routine just checks to see whether 10947 * cur_blocked is blocked by ooa_io, which is ahead 10948 * of it in the queue. It doesn't queue/dequeue 10949 * cur_blocked. 10950 */ 10951 action = ctl_check_for_blockage(pending_io, ooa_io); 10952 switch (action) { 10953 case CTL_ACTION_BLOCK: 10954 case CTL_ACTION_OVERLAP: 10955 case CTL_ACTION_OVERLAP_TAG: 10956 case CTL_ACTION_SKIP: 10957 case CTL_ACTION_ERROR: 10958 return (action); 10959 break; /* NOTREACHED */ 10960 case CTL_ACTION_PASS: 10961 break; 10962 default: 10963 panic("invalid action %d", action); 10964 break; /* NOTREACHED */ 10965 } 10966 } 10967 10968 return (CTL_ACTION_PASS); 10969 } 10970 10971 /* 10972 * Assumptions: 10973 * - An I/O has just completed, and has been removed from the per-LUN OOA 10974 * queue, so some items on the blocked queue may now be unblocked. 10975 */ 10976 static int 10977 ctl_check_blocked(struct ctl_lun *lun) 10978 { 10979 union ctl_io *cur_blocked, *next_blocked; 10980 10981 mtx_assert(&lun->lun_lock, MA_OWNED); 10982 10983 /* 10984 * Run forward from the head of the blocked queue, checking each 10985 * entry against the I/Os prior to it on the OOA queue to see if 10986 * there is still any blockage. 10987 * 10988 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 10989 * with our removing a variable on it while it is traversing the 10990 * list. 10991 */ 10992 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 10993 cur_blocked != NULL; cur_blocked = next_blocked) { 10994 union ctl_io *prev_ooa; 10995 ctl_action action; 10996 10997 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 10998 blocked_links); 10999 11000 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11001 ctl_ooaq, ooa_links); 11002 11003 /* 11004 * If cur_blocked happens to be the first item in the OOA 11005 * queue now, prev_ooa will be NULL, and the action 11006 * returned will just be CTL_ACTION_PASS. 11007 */ 11008 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11009 11010 switch (action) { 11011 case CTL_ACTION_BLOCK: 11012 /* Nothing to do here, still blocked */ 11013 break; 11014 case CTL_ACTION_OVERLAP: 11015 case CTL_ACTION_OVERLAP_TAG: 11016 /* 11017 * This shouldn't happen! In theory we've already 11018 * checked this command for overlap... 11019 */ 11020 break; 11021 case CTL_ACTION_PASS: 11022 case CTL_ACTION_SKIP: { 11023 struct ctl_softc *softc; 11024 const struct ctl_cmd_entry *entry; 11025 uint32_t initidx; 11026 int isc_retval; 11027 11028 /* 11029 * The skip case shouldn't happen, this transaction 11030 * should have never made it onto the blocked queue. 11031 */ 11032 /* 11033 * This I/O is no longer blocked, we can remove it 11034 * from the blocked queue. Since this is a TAILQ 11035 * (doubly linked list), we can do O(1) removals 11036 * from any place on the list. 11037 */ 11038 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11039 blocked_links); 11040 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11041 11042 if (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC){ 11043 /* 11044 * Need to send IO back to original side to 11045 * run 11046 */ 11047 union ctl_ha_msg msg_info; 11048 11049 msg_info.hdr.original_sc = 11050 cur_blocked->io_hdr.original_sc; 11051 msg_info.hdr.serializing_sc = cur_blocked; 11052 msg_info.hdr.msg_type = CTL_MSG_R2R; 11053 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11054 &msg_info, sizeof(msg_info), 0)) > 11055 CTL_HA_STATUS_SUCCESS) { 11056 printf("CTL:Check Blocked error from " 11057 "ctl_ha_msg_send %d\n", 11058 isc_retval); 11059 } 11060 break; 11061 } 11062 entry = ctl_get_cmd_entry(&cur_blocked->scsiio); 11063 softc = control_softc; 11064 11065 initidx = ctl_get_initindex(&cur_blocked->io_hdr.nexus); 11066 11067 /* 11068 * Check this I/O for LUN state changes that may 11069 * have happened while this command was blocked. 11070 * The LUN state may have been changed by a command 11071 * ahead of us in the queue, so we need to re-check 11072 * for any states that can be caused by SCSI 11073 * commands. 11074 */ 11075 if (ctl_scsiio_lun_check(softc, lun, entry, 11076 &cur_blocked->scsiio) == 0) { 11077 cur_blocked->io_hdr.flags |= 11078 CTL_FLAG_IS_WAS_ON_RTR; 11079 ctl_enqueue_rtr(cur_blocked); 11080 } else 11081 ctl_done(cur_blocked); 11082 break; 11083 } 11084 default: 11085 /* 11086 * This probably shouldn't happen -- we shouldn't 11087 * get CTL_ACTION_ERROR, or anything else. 11088 */ 11089 break; 11090 } 11091 } 11092 11093 return (CTL_RETVAL_COMPLETE); 11094 } 11095 11096 /* 11097 * This routine (with one exception) checks LUN flags that can be set by 11098 * commands ahead of us in the OOA queue. These flags have to be checked 11099 * when a command initially comes in, and when we pull a command off the 11100 * blocked queue and are preparing to execute it. The reason we have to 11101 * check these flags for commands on the blocked queue is that the LUN 11102 * state may have been changed by a command ahead of us while we're on the 11103 * blocked queue. 11104 * 11105 * Ordering is somewhat important with these checks, so please pay 11106 * careful attention to the placement of any new checks. 11107 */ 11108 static int 11109 ctl_scsiio_lun_check(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 11110 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11111 { 11112 int retval; 11113 11114 retval = 0; 11115 11116 mtx_assert(&lun->lun_lock, MA_OWNED); 11117 11118 /* 11119 * If this shelf is a secondary shelf controller, we have to reject 11120 * any media access commands. 11121 */ 11122 #if 0 11123 /* No longer needed for HA */ 11124 if (((ctl_softc->flags & CTL_FLAG_MASTER_SHELF) == 0) 11125 && ((entry->flags & CTL_CMD_FLAG_OK_ON_SECONDARY) == 0)) { 11126 ctl_set_lun_standby(ctsio); 11127 retval = 1; 11128 goto bailout; 11129 } 11130 #endif 11131 11132 /* 11133 * Check for a reservation conflict. If this command isn't allowed 11134 * even on reserved LUNs, and if this initiator isn't the one who 11135 * reserved us, reject the command with a reservation conflict. 11136 */ 11137 if ((lun->flags & CTL_LUN_RESERVED) 11138 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11139 if ((ctsio->io_hdr.nexus.initid.id != lun->rsv_nexus.initid.id) 11140 || (ctsio->io_hdr.nexus.targ_port != lun->rsv_nexus.targ_port) 11141 || (ctsio->io_hdr.nexus.targ_target.id != 11142 lun->rsv_nexus.targ_target.id)) { 11143 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11144 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11145 retval = 1; 11146 goto bailout; 11147 } 11148 } 11149 11150 if ( (lun->flags & CTL_LUN_PR_RESERVED) 11151 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV) == 0)) { 11152 uint32_t residx; 11153 11154 residx = ctl_get_resindex(&ctsio->io_hdr.nexus); 11155 /* 11156 * if we aren't registered or it's a res holder type 11157 * reservation and this isn't the res holder then set a 11158 * conflict. 11159 * NOTE: Commands which might be allowed on write exclusive 11160 * type reservations are checked in the particular command 11161 * for a conflict. Read and SSU are the only ones. 11162 */ 11163 if (!lun->per_res[residx].registered 11164 || (residx != lun->pr_res_idx && lun->res_type < 4)) { 11165 ctsio->scsi_status = SCSI_STATUS_RESERV_CONFLICT; 11166 ctsio->io_hdr.status = CTL_SCSI_ERROR; 11167 retval = 1; 11168 goto bailout; 11169 } 11170 11171 } 11172 11173 if ((lun->flags & CTL_LUN_OFFLINE) 11174 && ((entry->flags & CTL_CMD_FLAG_OK_ON_OFFLINE) == 0)) { 11175 ctl_set_lun_not_ready(ctsio); 11176 retval = 1; 11177 goto bailout; 11178 } 11179 11180 /* 11181 * If the LUN is stopped, see if this particular command is allowed 11182 * for a stopped lun. Otherwise, reject it with 0x04,0x02. 11183 */ 11184 if ((lun->flags & CTL_LUN_STOPPED) 11185 && ((entry->flags & CTL_CMD_FLAG_OK_ON_STOPPED) == 0)) { 11186 /* "Logical unit not ready, initializing cmd. required" */ 11187 ctl_set_lun_stopped(ctsio); 11188 retval = 1; 11189 goto bailout; 11190 } 11191 11192 if ((lun->flags & CTL_LUN_INOPERABLE) 11193 && ((entry->flags & CTL_CMD_FLAG_OK_ON_INOPERABLE) == 0)) { 11194 /* "Medium format corrupted" */ 11195 ctl_set_medium_format_corrupted(ctsio); 11196 retval = 1; 11197 goto bailout; 11198 } 11199 11200 bailout: 11201 return (retval); 11202 11203 } 11204 11205 static void 11206 ctl_failover_io(union ctl_io *io, int have_lock) 11207 { 11208 ctl_set_busy(&io->scsiio); 11209 ctl_done(io); 11210 } 11211 11212 static void 11213 ctl_failover(void) 11214 { 11215 struct ctl_lun *lun; 11216 struct ctl_softc *ctl_softc; 11217 union ctl_io *next_io, *pending_io; 11218 union ctl_io *io; 11219 int lun_idx; 11220 int i; 11221 11222 ctl_softc = control_softc; 11223 11224 mtx_lock(&ctl_softc->ctl_lock); 11225 /* 11226 * Remove any cmds from the other SC from the rtr queue. These 11227 * will obviously only be for LUNs for which we're the primary. 11228 * We can't send status or get/send data for these commands. 11229 * Since they haven't been executed yet, we can just remove them. 11230 * We'll either abort them or delete them below, depending on 11231 * which HA mode we're in. 11232 */ 11233 #ifdef notyet 11234 mtx_lock(&ctl_softc->queue_lock); 11235 for (io = (union ctl_io *)STAILQ_FIRST(&ctl_softc->rtr_queue); 11236 io != NULL; io = next_io) { 11237 next_io = (union ctl_io *)STAILQ_NEXT(&io->io_hdr, links); 11238 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11239 STAILQ_REMOVE(&ctl_softc->rtr_queue, &io->io_hdr, 11240 ctl_io_hdr, links); 11241 } 11242 mtx_unlock(&ctl_softc->queue_lock); 11243 #endif 11244 11245 for (lun_idx=0; lun_idx < ctl_softc->num_luns; lun_idx++) { 11246 lun = ctl_softc->ctl_luns[lun_idx]; 11247 if (lun==NULL) 11248 continue; 11249 11250 /* 11251 * Processor LUNs are primary on both sides. 11252 * XXX will this always be true? 11253 */ 11254 if (lun->be_lun->lun_type == T_PROCESSOR) 11255 continue; 11256 11257 if ((lun->flags & CTL_LUN_PRIMARY_SC) 11258 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11259 printf("FAILOVER: primary lun %d\n", lun_idx); 11260 /* 11261 * Remove all commands from the other SC. First from the 11262 * blocked queue then from the ooa queue. Once we have 11263 * removed them. Call ctl_check_blocked to see if there 11264 * is anything that can run. 11265 */ 11266 for (io = (union ctl_io *)TAILQ_FIRST( 11267 &lun->blocked_queue); io != NULL; io = next_io) { 11268 11269 next_io = (union ctl_io *)TAILQ_NEXT( 11270 &io->io_hdr, blocked_links); 11271 11272 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11273 TAILQ_REMOVE(&lun->blocked_queue, 11274 &io->io_hdr,blocked_links); 11275 io->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11276 TAILQ_REMOVE(&lun->ooa_queue, 11277 &io->io_hdr, ooa_links); 11278 11279 ctl_free_io(io); 11280 } 11281 } 11282 11283 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11284 io != NULL; io = next_io) { 11285 11286 next_io = (union ctl_io *)TAILQ_NEXT( 11287 &io->io_hdr, ooa_links); 11288 11289 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) { 11290 11291 TAILQ_REMOVE(&lun->ooa_queue, 11292 &io->io_hdr, 11293 ooa_links); 11294 11295 ctl_free_io(io); 11296 } 11297 } 11298 ctl_check_blocked(lun); 11299 } else if ((lun->flags & CTL_LUN_PRIMARY_SC) 11300 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11301 11302 printf("FAILOVER: primary lun %d\n", lun_idx); 11303 /* 11304 * Abort all commands from the other SC. We can't 11305 * send status back for them now. These should get 11306 * cleaned up when they are completed or come out 11307 * for a datamove operation. 11308 */ 11309 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); 11310 io != NULL; io = next_io) { 11311 next_io = (union ctl_io *)TAILQ_NEXT( 11312 &io->io_hdr, ooa_links); 11313 11314 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 11315 io->io_hdr.flags |= CTL_FLAG_ABORT; 11316 } 11317 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11318 && (ctl_softc->ha_mode == CTL_HA_MODE_XFER)) { 11319 11320 printf("FAILOVER: secondary lun %d\n", lun_idx); 11321 11322 lun->flags |= CTL_LUN_PRIMARY_SC; 11323 11324 /* 11325 * We send all I/O that was sent to this controller 11326 * and redirected to the other side back with 11327 * busy status, and have the initiator retry it. 11328 * Figuring out how much data has been transferred, 11329 * etc. and picking up where we left off would be 11330 * very tricky. 11331 * 11332 * XXX KDM need to remove I/O from the blocked 11333 * queue as well! 11334 */ 11335 for (pending_io = (union ctl_io *)TAILQ_FIRST( 11336 &lun->ooa_queue); pending_io != NULL; 11337 pending_io = next_io) { 11338 11339 next_io = (union ctl_io *)TAILQ_NEXT( 11340 &pending_io->io_hdr, ooa_links); 11341 11342 pending_io->io_hdr.flags &= 11343 ~CTL_FLAG_SENT_2OTHER_SC; 11344 11345 if (pending_io->io_hdr.flags & 11346 CTL_FLAG_IO_ACTIVE) { 11347 pending_io->io_hdr.flags |= 11348 CTL_FLAG_FAILOVER; 11349 } else { 11350 ctl_set_busy(&pending_io->scsiio); 11351 ctl_done(pending_io); 11352 } 11353 } 11354 11355 /* 11356 * Build Unit Attention 11357 */ 11358 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11359 lun->pending_ua[i] |= 11360 CTL_UA_ASYM_ACC_CHANGE; 11361 } 11362 } else if (((lun->flags & CTL_LUN_PRIMARY_SC) == 0) 11363 && (ctl_softc->ha_mode == CTL_HA_MODE_SER_ONLY)) { 11364 printf("FAILOVER: secondary lun %d\n", lun_idx); 11365 /* 11366 * if the first io on the OOA is not on the RtR queue 11367 * add it. 11368 */ 11369 lun->flags |= CTL_LUN_PRIMARY_SC; 11370 11371 pending_io = (union ctl_io *)TAILQ_FIRST( 11372 &lun->ooa_queue); 11373 if (pending_io==NULL) { 11374 printf("Nothing on OOA queue\n"); 11375 continue; 11376 } 11377 11378 pending_io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11379 if ((pending_io->io_hdr.flags & 11380 CTL_FLAG_IS_WAS_ON_RTR) == 0) { 11381 pending_io->io_hdr.flags |= 11382 CTL_FLAG_IS_WAS_ON_RTR; 11383 ctl_enqueue_rtr(pending_io); 11384 } 11385 #if 0 11386 else 11387 { 11388 printf("Tag 0x%04x is running\n", 11389 pending_io->scsiio.tag_num); 11390 } 11391 #endif 11392 11393 next_io = (union ctl_io *)TAILQ_NEXT( 11394 &pending_io->io_hdr, ooa_links); 11395 for (pending_io=next_io; pending_io != NULL; 11396 pending_io = next_io) { 11397 pending_io->io_hdr.flags &= 11398 ~CTL_FLAG_SENT_2OTHER_SC; 11399 next_io = (union ctl_io *)TAILQ_NEXT( 11400 &pending_io->io_hdr, ooa_links); 11401 if (pending_io->io_hdr.flags & 11402 CTL_FLAG_IS_WAS_ON_RTR) { 11403 #if 0 11404 printf("Tag 0x%04x is running\n", 11405 pending_io->scsiio.tag_num); 11406 #endif 11407 continue; 11408 } 11409 11410 switch (ctl_check_ooa(lun, pending_io, 11411 (union ctl_io *)TAILQ_PREV( 11412 &pending_io->io_hdr, ctl_ooaq, 11413 ooa_links))) { 11414 11415 case CTL_ACTION_BLOCK: 11416 TAILQ_INSERT_TAIL(&lun->blocked_queue, 11417 &pending_io->io_hdr, 11418 blocked_links); 11419 pending_io->io_hdr.flags |= 11420 CTL_FLAG_BLOCKED; 11421 break; 11422 case CTL_ACTION_PASS: 11423 case CTL_ACTION_SKIP: 11424 pending_io->io_hdr.flags |= 11425 CTL_FLAG_IS_WAS_ON_RTR; 11426 ctl_enqueue_rtr(pending_io); 11427 break; 11428 case CTL_ACTION_OVERLAP: 11429 ctl_set_overlapped_cmd( 11430 (struct ctl_scsiio *)pending_io); 11431 ctl_done(pending_io); 11432 break; 11433 case CTL_ACTION_OVERLAP_TAG: 11434 ctl_set_overlapped_tag( 11435 (struct ctl_scsiio *)pending_io, 11436 pending_io->scsiio.tag_num & 0xff); 11437 ctl_done(pending_io); 11438 break; 11439 case CTL_ACTION_ERROR: 11440 default: 11441 ctl_set_internal_failure( 11442 (struct ctl_scsiio *)pending_io, 11443 0, // sks_valid 11444 0); //retry count 11445 ctl_done(pending_io); 11446 break; 11447 } 11448 } 11449 11450 /* 11451 * Build Unit Attention 11452 */ 11453 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11454 lun->pending_ua[i] |= 11455 CTL_UA_ASYM_ACC_CHANGE; 11456 } 11457 } else { 11458 panic("Unhandled HA mode failover, LUN flags = %#x, " 11459 "ha_mode = #%x", lun->flags, ctl_softc->ha_mode); 11460 } 11461 } 11462 ctl_pause_rtr = 0; 11463 mtx_unlock(&ctl_softc->ctl_lock); 11464 } 11465 11466 static int 11467 ctl_scsiio_precheck(struct ctl_softc *ctl_softc, struct ctl_scsiio *ctsio) 11468 { 11469 struct ctl_lun *lun; 11470 const struct ctl_cmd_entry *entry; 11471 uint32_t initidx, targ_lun; 11472 int retval; 11473 11474 retval = 0; 11475 11476 lun = NULL; 11477 11478 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11479 if ((targ_lun < CTL_MAX_LUNS) 11480 && (ctl_softc->ctl_luns[targ_lun] != NULL)) { 11481 lun = ctl_softc->ctl_luns[targ_lun]; 11482 /* 11483 * If the LUN is invalid, pretend that it doesn't exist. 11484 * It will go away as soon as all pending I/O has been 11485 * completed. 11486 */ 11487 if (lun->flags & CTL_LUN_DISABLED) { 11488 lun = NULL; 11489 } else { 11490 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = lun; 11491 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = 11492 lun->be_lun; 11493 if (lun->be_lun->lun_type == T_PROCESSOR) { 11494 ctsio->io_hdr.flags |= CTL_FLAG_CONTROL_DEV; 11495 } 11496 11497 /* 11498 * Every I/O goes into the OOA queue for a 11499 * particular LUN, and stays there until completion. 11500 */ 11501 mtx_lock(&lun->lun_lock); 11502 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, 11503 ooa_links); 11504 } 11505 } else { 11506 ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr = NULL; 11507 ctsio->io_hdr.ctl_private[CTL_PRIV_BACKEND_LUN].ptr = NULL; 11508 } 11509 11510 /* Get command entry and return error if it is unsuppotyed. */ 11511 entry = ctl_validate_command(ctsio); 11512 if (entry == NULL) { 11513 if (lun) 11514 mtx_unlock(&lun->lun_lock); 11515 return (retval); 11516 } 11517 11518 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11519 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11520 11521 /* 11522 * Check to see whether we can send this command to LUNs that don't 11523 * exist. This should pretty much only be the case for inquiry 11524 * and request sense. Further checks, below, really require having 11525 * a LUN, so we can't really check the command anymore. Just put 11526 * it on the rtr queue. 11527 */ 11528 if (lun == NULL) { 11529 if (entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) { 11530 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11531 ctl_enqueue_rtr((union ctl_io *)ctsio); 11532 return (retval); 11533 } 11534 11535 ctl_set_unsupported_lun(ctsio); 11536 ctl_done((union ctl_io *)ctsio); 11537 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11538 return (retval); 11539 } else { 11540 /* 11541 * Make sure we support this particular command on this LUN. 11542 * e.g., we don't support writes to the control LUN. 11543 */ 11544 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11545 mtx_unlock(&lun->lun_lock); 11546 ctl_set_invalid_opcode(ctsio); 11547 ctl_done((union ctl_io *)ctsio); 11548 return (retval); 11549 } 11550 } 11551 11552 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11553 11554 #ifdef CTL_WITH_CA 11555 /* 11556 * If we've got a request sense, it'll clear the contingent 11557 * allegiance condition. Otherwise, if we have a CA condition for 11558 * this initiator, clear it, because it sent down a command other 11559 * than request sense. 11560 */ 11561 if ((ctsio->cdb[0] != REQUEST_SENSE) 11562 && (ctl_is_set(lun->have_ca, initidx))) 11563 ctl_clear_mask(lun->have_ca, initidx); 11564 #endif 11565 11566 /* 11567 * If the command has this flag set, it handles its own unit 11568 * attention reporting, we shouldn't do anything. Otherwise we 11569 * check for any pending unit attentions, and send them back to the 11570 * initiator. We only do this when a command initially comes in, 11571 * not when we pull it off the blocked queue. 11572 * 11573 * According to SAM-3, section 5.3.2, the order that things get 11574 * presented back to the host is basically unit attentions caused 11575 * by some sort of reset event, busy status, reservation conflicts 11576 * or task set full, and finally any other status. 11577 * 11578 * One issue here is that some of the unit attentions we report 11579 * don't fall into the "reset" category (e.g. "reported luns data 11580 * has changed"). So reporting it here, before the reservation 11581 * check, may be technically wrong. I guess the only thing to do 11582 * would be to check for and report the reset events here, and then 11583 * check for the other unit attention types after we check for a 11584 * reservation conflict. 11585 * 11586 * XXX KDM need to fix this 11587 */ 11588 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11589 ctl_ua_type ua_type; 11590 11591 ua_type = lun->pending_ua[initidx]; 11592 if (ua_type != CTL_UA_NONE) { 11593 scsi_sense_data_type sense_format; 11594 11595 if (lun != NULL) 11596 sense_format = (lun->flags & 11597 CTL_LUN_SENSE_DESC) ? SSD_TYPE_DESC : 11598 SSD_TYPE_FIXED; 11599 else 11600 sense_format = SSD_TYPE_FIXED; 11601 11602 ua_type = ctl_build_ua(ua_type, &ctsio->sense_data, 11603 sense_format); 11604 if (ua_type != CTL_UA_NONE) { 11605 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11606 ctsio->io_hdr.status = CTL_SCSI_ERROR | 11607 CTL_AUTOSENSE; 11608 ctsio->sense_len = SSD_FULL_SIZE; 11609 lun->pending_ua[initidx] &= ~ua_type; 11610 mtx_unlock(&lun->lun_lock); 11611 ctl_done((union ctl_io *)ctsio); 11612 return (retval); 11613 } 11614 } 11615 } 11616 11617 11618 if (ctl_scsiio_lun_check(ctl_softc, lun, entry, ctsio) != 0) { 11619 mtx_unlock(&lun->lun_lock); 11620 ctl_done((union ctl_io *)ctsio); 11621 return (retval); 11622 } 11623 11624 /* 11625 * XXX CHD this is where we want to send IO to other side if 11626 * this LUN is secondary on this SC. We will need to make a copy 11627 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11628 * the copy we send as FROM_OTHER. 11629 * We also need to stuff the address of the original IO so we can 11630 * find it easily. Something similar will need be done on the other 11631 * side so when we are done we can find the copy. 11632 */ 11633 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11634 union ctl_ha_msg msg_info; 11635 int isc_retval; 11636 11637 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11638 11639 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11640 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11641 #if 0 11642 printf("1. ctsio %p\n", ctsio); 11643 #endif 11644 msg_info.hdr.serializing_sc = NULL; 11645 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11646 msg_info.scsi.tag_num = ctsio->tag_num; 11647 msg_info.scsi.tag_type = ctsio->tag_type; 11648 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11649 11650 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11651 11652 if ((isc_retval=ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11653 (void *)&msg_info, sizeof(msg_info), 0)) > 11654 CTL_HA_STATUS_SUCCESS) { 11655 printf("CTL:precheck, ctl_ha_msg_send returned %d\n", 11656 isc_retval); 11657 printf("CTL:opcode is %x\n", ctsio->cdb[0]); 11658 } else { 11659 #if 0 11660 printf("CTL:Precheck sent msg, opcode is %x\n",opcode); 11661 #endif 11662 } 11663 11664 /* 11665 * XXX KDM this I/O is off the incoming queue, but hasn't 11666 * been inserted on any other queue. We may need to come 11667 * up with a holding queue while we wait for serialization 11668 * so that we have an idea of what we're waiting for from 11669 * the other side. 11670 */ 11671 mtx_unlock(&lun->lun_lock); 11672 return (retval); 11673 } 11674 11675 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11676 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11677 ctl_ooaq, ooa_links))) { 11678 case CTL_ACTION_BLOCK: 11679 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11680 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11681 blocked_links); 11682 mtx_unlock(&lun->lun_lock); 11683 return (retval); 11684 case CTL_ACTION_PASS: 11685 case CTL_ACTION_SKIP: 11686 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11687 mtx_unlock(&lun->lun_lock); 11688 ctl_enqueue_rtr((union ctl_io *)ctsio); 11689 break; 11690 case CTL_ACTION_OVERLAP: 11691 mtx_unlock(&lun->lun_lock); 11692 ctl_set_overlapped_cmd(ctsio); 11693 ctl_done((union ctl_io *)ctsio); 11694 break; 11695 case CTL_ACTION_OVERLAP_TAG: 11696 mtx_unlock(&lun->lun_lock); 11697 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11698 ctl_done((union ctl_io *)ctsio); 11699 break; 11700 case CTL_ACTION_ERROR: 11701 default: 11702 mtx_unlock(&lun->lun_lock); 11703 ctl_set_internal_failure(ctsio, 11704 /*sks_valid*/ 0, 11705 /*retry_count*/ 0); 11706 ctl_done((union ctl_io *)ctsio); 11707 break; 11708 } 11709 return (retval); 11710 } 11711 11712 const struct ctl_cmd_entry * 11713 ctl_get_cmd_entry(struct ctl_scsiio *ctsio) 11714 { 11715 const struct ctl_cmd_entry *entry; 11716 int service_action; 11717 11718 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11719 if (entry->flags & CTL_CMD_FLAG_SA5) { 11720 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11721 entry = &((const struct ctl_cmd_entry *) 11722 entry->execute)[service_action]; 11723 } 11724 return (entry); 11725 } 11726 11727 const struct ctl_cmd_entry * 11728 ctl_validate_command(struct ctl_scsiio *ctsio) 11729 { 11730 const struct ctl_cmd_entry *entry; 11731 int i; 11732 uint8_t diff; 11733 11734 entry = ctl_get_cmd_entry(ctsio); 11735 if (entry->execute == NULL) { 11736 ctl_set_invalid_opcode(ctsio); 11737 ctl_done((union ctl_io *)ctsio); 11738 return (NULL); 11739 } 11740 KASSERT(entry->length > 0, 11741 ("Not defined length for command 0x%02x/0x%02x", 11742 ctsio->cdb[0], ctsio->cdb[1])); 11743 for (i = 1; i < entry->length; i++) { 11744 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11745 if (diff == 0) 11746 continue; 11747 ctl_set_invalid_field(ctsio, 11748 /*sks_valid*/ 1, 11749 /*command*/ 1, 11750 /*field*/ i, 11751 /*bit_valid*/ 1, 11752 /*bit*/ fls(diff) - 1); 11753 ctl_done((union ctl_io *)ctsio); 11754 return (NULL); 11755 } 11756 return (entry); 11757 } 11758 11759 static int 11760 ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11761 { 11762 11763 switch (lun_type) { 11764 case T_PROCESSOR: 11765 if (((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) && 11766 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11767 return (0); 11768 break; 11769 case T_DIRECT: 11770 if (((entry->flags & CTL_CMD_FLAG_OK_ON_SLUN) == 0) && 11771 ((entry->flags & CTL_CMD_FLAG_OK_ON_ALL_LUNS) == 0)) 11772 return (0); 11773 break; 11774 default: 11775 return (0); 11776 } 11777 return (1); 11778 } 11779 11780 static int 11781 ctl_scsiio(struct ctl_scsiio *ctsio) 11782 { 11783 int retval; 11784 const struct ctl_cmd_entry *entry; 11785 11786 retval = CTL_RETVAL_COMPLETE; 11787 11788 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11789 11790 entry = ctl_get_cmd_entry(ctsio); 11791 11792 /* 11793 * If this I/O has been aborted, just send it straight to 11794 * ctl_done() without executing it. 11795 */ 11796 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11797 ctl_done((union ctl_io *)ctsio); 11798 goto bailout; 11799 } 11800 11801 /* 11802 * All the checks should have been handled by ctl_scsiio_precheck(). 11803 * We should be clear now to just execute the I/O. 11804 */ 11805 retval = entry->execute(ctsio); 11806 11807 bailout: 11808 return (retval); 11809 } 11810 11811 /* 11812 * Since we only implement one target right now, a bus reset simply resets 11813 * our single target. 11814 */ 11815 static int 11816 ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io) 11817 { 11818 return(ctl_target_reset(ctl_softc, io, CTL_UA_BUS_RESET)); 11819 } 11820 11821 static int 11822 ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 11823 ctl_ua_type ua_type) 11824 { 11825 struct ctl_lun *lun; 11826 int retval; 11827 11828 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11829 union ctl_ha_msg msg_info; 11830 11831 io->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11832 msg_info.hdr.nexus = io->io_hdr.nexus; 11833 if (ua_type==CTL_UA_TARG_RESET) 11834 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11835 else 11836 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11837 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11838 msg_info.hdr.original_sc = NULL; 11839 msg_info.hdr.serializing_sc = NULL; 11840 if (CTL_HA_STATUS_SUCCESS != ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11841 (void *)&msg_info, sizeof(msg_info), 0)) { 11842 } 11843 } 11844 retval = 0; 11845 11846 mtx_lock(&ctl_softc->ctl_lock); 11847 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) 11848 retval += ctl_lun_reset(lun, io, ua_type); 11849 mtx_unlock(&ctl_softc->ctl_lock); 11850 11851 return (retval); 11852 } 11853 11854 /* 11855 * The LUN should always be set. The I/O is optional, and is used to 11856 * distinguish between I/Os sent by this initiator, and by other 11857 * initiators. We set unit attention for initiators other than this one. 11858 * SAM-3 is vague on this point. It does say that a unit attention should 11859 * be established for other initiators when a LUN is reset (see section 11860 * 5.7.3), but it doesn't specifically say that the unit attention should 11861 * be established for this particular initiator when a LUN is reset. Here 11862 * is the relevant text, from SAM-3 rev 8: 11863 * 11864 * 5.7.2 When a SCSI initiator port aborts its own tasks 11865 * 11866 * When a SCSI initiator port causes its own task(s) to be aborted, no 11867 * notification that the task(s) have been aborted shall be returned to 11868 * the SCSI initiator port other than the completion response for the 11869 * command or task management function action that caused the task(s) to 11870 * be aborted and notification(s) associated with related effects of the 11871 * action (e.g., a reset unit attention condition). 11872 * 11873 * XXX KDM for now, we're setting unit attention for all initiators. 11874 */ 11875 static int 11876 ctl_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11877 { 11878 union ctl_io *xio; 11879 #if 0 11880 uint32_t initindex; 11881 #endif 11882 int i; 11883 11884 mtx_lock(&lun->lun_lock); 11885 /* 11886 * Run through the OOA queue and abort each I/O. 11887 */ 11888 #if 0 11889 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 11890 #endif 11891 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11892 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11893 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11894 } 11895 11896 /* 11897 * This version sets unit attention for every 11898 */ 11899 #if 0 11900 initindex = ctl_get_initindex(&io->io_hdr.nexus); 11901 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11902 if (initindex == i) 11903 continue; 11904 lun->pending_ua[i] |= ua_type; 11905 } 11906 #endif 11907 11908 /* 11909 * A reset (any kind, really) clears reservations established with 11910 * RESERVE/RELEASE. It does not clear reservations established 11911 * with PERSISTENT RESERVE OUT, but we don't support that at the 11912 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11913 * reservations made with the RESERVE/RELEASE commands, because 11914 * those commands are obsolete in SPC-3. 11915 */ 11916 lun->flags &= ~CTL_LUN_RESERVED; 11917 11918 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 11919 #ifdef CTL_WITH_CA 11920 ctl_clear_mask(lun->have_ca, i); 11921 #endif 11922 lun->pending_ua[i] |= ua_type; 11923 } 11924 mtx_unlock(&lun->lun_lock); 11925 11926 return (0); 11927 } 11928 11929 static int 11930 ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11931 int other_sc) 11932 { 11933 union ctl_io *xio; 11934 int found; 11935 11936 mtx_assert(&lun->lun_lock, MA_OWNED); 11937 11938 /* 11939 * Run through the OOA queue and attempt to find the given I/O. 11940 * The target port, initiator ID, tag type and tag number have to 11941 * match the values that we got from the initiator. If we have an 11942 * untagged command to abort, simply abort the first untagged command 11943 * we come to. We only allow one untagged command at a time of course. 11944 */ 11945 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11946 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11947 11948 if ((targ_port == UINT32_MAX || 11949 targ_port == xio->io_hdr.nexus.targ_port) && 11950 (init_id == UINT32_MAX || 11951 init_id == xio->io_hdr.nexus.initid.id)) { 11952 if (targ_port != xio->io_hdr.nexus.targ_port || 11953 init_id != xio->io_hdr.nexus.initid.id) 11954 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 11955 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11956 found = 1; 11957 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11958 union ctl_ha_msg msg_info; 11959 11960 msg_info.hdr.nexus = xio->io_hdr.nexus; 11961 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 11962 msg_info.task.tag_num = xio->scsiio.tag_num; 11963 msg_info.task.tag_type = xio->scsiio.tag_type; 11964 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11965 msg_info.hdr.original_sc = NULL; 11966 msg_info.hdr.serializing_sc = NULL; 11967 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 11968 (void *)&msg_info, sizeof(msg_info), 0); 11969 } 11970 } 11971 } 11972 return (found); 11973 } 11974 11975 static int 11976 ctl_abort_task_set(union ctl_io *io) 11977 { 11978 struct ctl_softc *softc = control_softc; 11979 struct ctl_lun *lun; 11980 uint32_t targ_lun; 11981 11982 /* 11983 * Look up the LUN. 11984 */ 11985 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11986 mtx_lock(&softc->ctl_lock); 11987 if ((targ_lun < CTL_MAX_LUNS) && (softc->ctl_luns[targ_lun] != NULL)) 11988 lun = softc->ctl_luns[targ_lun]; 11989 else { 11990 mtx_unlock(&softc->ctl_lock); 11991 return (1); 11992 } 11993 11994 mtx_lock(&lun->lun_lock); 11995 mtx_unlock(&softc->ctl_lock); 11996 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 11997 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11998 io->io_hdr.nexus.initid.id, 11999 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12000 } else { /* CTL_TASK_CLEAR_TASK_SET */ 12001 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 12002 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12003 } 12004 mtx_unlock(&lun->lun_lock); 12005 return (0); 12006 } 12007 12008 static int 12009 ctl_i_t_nexus_reset(union ctl_io *io) 12010 { 12011 struct ctl_softc *softc = control_softc; 12012 struct ctl_lun *lun; 12013 uint32_t initindex; 12014 12015 initindex = ctl_get_initindex(&io->io_hdr.nexus); 12016 mtx_lock(&softc->ctl_lock); 12017 STAILQ_FOREACH(lun, &softc->lun_list, links) { 12018 mtx_lock(&lun->lun_lock); 12019 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12020 io->io_hdr.nexus.initid.id, 12021 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12022 #ifdef CTL_WITH_CA 12023 ctl_clear_mask(lun->have_ca, initindex); 12024 #endif 12025 lun->pending_ua[initindex] |= CTL_UA_I_T_NEXUS_LOSS; 12026 mtx_unlock(&lun->lun_lock); 12027 } 12028 mtx_unlock(&softc->ctl_lock); 12029 return (0); 12030 } 12031 12032 static int 12033 ctl_abort_task(union ctl_io *io) 12034 { 12035 union ctl_io *xio; 12036 struct ctl_lun *lun; 12037 struct ctl_softc *ctl_softc; 12038 #if 0 12039 struct sbuf sb; 12040 char printbuf[128]; 12041 #endif 12042 int found; 12043 uint32_t targ_lun; 12044 12045 ctl_softc = control_softc; 12046 found = 0; 12047 12048 /* 12049 * Look up the LUN. 12050 */ 12051 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12052 mtx_lock(&ctl_softc->ctl_lock); 12053 if ((targ_lun < CTL_MAX_LUNS) 12054 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12055 lun = ctl_softc->ctl_luns[targ_lun]; 12056 else { 12057 mtx_unlock(&ctl_softc->ctl_lock); 12058 return (1); 12059 } 12060 12061 #if 0 12062 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12063 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12064 #endif 12065 12066 mtx_lock(&lun->lun_lock); 12067 mtx_unlock(&ctl_softc->ctl_lock); 12068 /* 12069 * Run through the OOA queue and attempt to find the given I/O. 12070 * The target port, initiator ID, tag type and tag number have to 12071 * match the values that we got from the initiator. If we have an 12072 * untagged command to abort, simply abort the first untagged command 12073 * we come to. We only allow one untagged command at a time of course. 12074 */ 12075 #if 0 12076 TAILQ_FOREACH((struct ctl_io_hdr *)xio, &lun->ooa_queue, ooa_links) { 12077 #endif 12078 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12079 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12080 #if 0 12081 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12082 12083 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12084 lun->lun, xio->scsiio.tag_num, 12085 xio->scsiio.tag_type, 12086 (xio->io_hdr.blocked_links.tqe_prev 12087 == NULL) ? "" : " BLOCKED", 12088 (xio->io_hdr.flags & 12089 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12090 (xio->io_hdr.flags & 12091 CTL_FLAG_ABORT) ? " ABORT" : "", 12092 (xio->io_hdr.flags & 12093 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12094 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12095 sbuf_finish(&sb); 12096 printf("%s\n", sbuf_data(&sb)); 12097 #endif 12098 12099 if ((xio->io_hdr.nexus.targ_port == io->io_hdr.nexus.targ_port) 12100 && (xio->io_hdr.nexus.initid.id == 12101 io->io_hdr.nexus.initid.id)) { 12102 /* 12103 * If the abort says that the task is untagged, the 12104 * task in the queue must be untagged. Otherwise, 12105 * we just check to see whether the tag numbers 12106 * match. This is because the QLogic firmware 12107 * doesn't pass back the tag type in an abort 12108 * request. 12109 */ 12110 #if 0 12111 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12112 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12113 || (xio->scsiio.tag_num == io->taskio.tag_num)) { 12114 #endif 12115 /* 12116 * XXX KDM we've got problems with FC, because it 12117 * doesn't send down a tag type with aborts. So we 12118 * can only really go by the tag number... 12119 * This may cause problems with parallel SCSI. 12120 * Need to figure that out!! 12121 */ 12122 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12123 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12124 found = 1; 12125 if ((io->io_hdr.flags & 12126 CTL_FLAG_FROM_OTHER_SC) == 0 && 12127 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12128 union ctl_ha_msg msg_info; 12129 12130 io->io_hdr.flags |= 12131 CTL_FLAG_SENT_2OTHER_SC; 12132 msg_info.hdr.nexus = io->io_hdr.nexus; 12133 msg_info.task.task_action = 12134 CTL_TASK_ABORT_TASK; 12135 msg_info.task.tag_num = 12136 io->taskio.tag_num; 12137 msg_info.task.tag_type = 12138 io->taskio.tag_type; 12139 msg_info.hdr.msg_type = 12140 CTL_MSG_MANAGE_TASKS; 12141 msg_info.hdr.original_sc = NULL; 12142 msg_info.hdr.serializing_sc = NULL; 12143 #if 0 12144 printf("Sent Abort to other side\n"); 12145 #endif 12146 if (CTL_HA_STATUS_SUCCESS != 12147 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12148 (void *)&msg_info, 12149 sizeof(msg_info), 0)) { 12150 } 12151 } 12152 #if 0 12153 printf("ctl_abort_task: found I/O to abort\n"); 12154 #endif 12155 break; 12156 } 12157 } 12158 } 12159 mtx_unlock(&lun->lun_lock); 12160 12161 if (found == 0) { 12162 /* 12163 * This isn't really an error. It's entirely possible for 12164 * the abort and command completion to cross on the wire. 12165 * This is more of an informative/diagnostic error. 12166 */ 12167 #if 0 12168 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12169 "%d:%d:%d:%d tag %d type %d\n", 12170 io->io_hdr.nexus.initid.id, 12171 io->io_hdr.nexus.targ_port, 12172 io->io_hdr.nexus.targ_target.id, 12173 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12174 io->taskio.tag_type); 12175 #endif 12176 } 12177 return (0); 12178 } 12179 12180 static void 12181 ctl_run_task(union ctl_io *io) 12182 { 12183 struct ctl_softc *ctl_softc = control_softc; 12184 int retval = 1; 12185 const char *task_desc; 12186 12187 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12188 12189 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12190 ("ctl_run_task: Unextected io_type %d\n", 12191 io->io_hdr.io_type)); 12192 12193 task_desc = ctl_scsi_task_string(&io->taskio); 12194 if (task_desc != NULL) { 12195 #ifdef NEEDTOPORT 12196 csevent_log(CSC_CTL | CSC_SHELF_SW | 12197 CTL_TASK_REPORT, 12198 csevent_LogType_Trace, 12199 csevent_Severity_Information, 12200 csevent_AlertLevel_Green, 12201 csevent_FRU_Firmware, 12202 csevent_FRU_Unknown, 12203 "CTL: received task: %s",task_desc); 12204 #endif 12205 } else { 12206 #ifdef NEEDTOPORT 12207 csevent_log(CSC_CTL | CSC_SHELF_SW | 12208 CTL_TASK_REPORT, 12209 csevent_LogType_Trace, 12210 csevent_Severity_Information, 12211 csevent_AlertLevel_Green, 12212 csevent_FRU_Firmware, 12213 csevent_FRU_Unknown, 12214 "CTL: received unknown task " 12215 "type: %d (%#x)", 12216 io->taskio.task_action, 12217 io->taskio.task_action); 12218 #endif 12219 } 12220 switch (io->taskio.task_action) { 12221 case CTL_TASK_ABORT_TASK: 12222 retval = ctl_abort_task(io); 12223 break; 12224 case CTL_TASK_ABORT_TASK_SET: 12225 case CTL_TASK_CLEAR_TASK_SET: 12226 retval = ctl_abort_task_set(io); 12227 break; 12228 case CTL_TASK_CLEAR_ACA: 12229 break; 12230 case CTL_TASK_I_T_NEXUS_RESET: 12231 retval = ctl_i_t_nexus_reset(io); 12232 break; 12233 case CTL_TASK_LUN_RESET: { 12234 struct ctl_lun *lun; 12235 uint32_t targ_lun; 12236 12237 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12238 mtx_lock(&ctl_softc->ctl_lock); 12239 if ((targ_lun < CTL_MAX_LUNS) 12240 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 12241 lun = ctl_softc->ctl_luns[targ_lun]; 12242 else { 12243 mtx_unlock(&ctl_softc->ctl_lock); 12244 retval = 1; 12245 break; 12246 } 12247 12248 if (!(io->io_hdr.flags & 12249 CTL_FLAG_FROM_OTHER_SC)) { 12250 union ctl_ha_msg msg_info; 12251 12252 io->io_hdr.flags |= 12253 CTL_FLAG_SENT_2OTHER_SC; 12254 msg_info.hdr.msg_type = 12255 CTL_MSG_MANAGE_TASKS; 12256 msg_info.hdr.nexus = io->io_hdr.nexus; 12257 msg_info.task.task_action = 12258 CTL_TASK_LUN_RESET; 12259 msg_info.hdr.original_sc = NULL; 12260 msg_info.hdr.serializing_sc = NULL; 12261 if (CTL_HA_STATUS_SUCCESS != 12262 ctl_ha_msg_send(CTL_HA_CHAN_CTL, 12263 (void *)&msg_info, 12264 sizeof(msg_info), 0)) { 12265 } 12266 } 12267 12268 retval = ctl_lun_reset(lun, io, 12269 CTL_UA_LUN_RESET); 12270 mtx_unlock(&ctl_softc->ctl_lock); 12271 break; 12272 } 12273 case CTL_TASK_TARGET_RESET: 12274 retval = ctl_target_reset(ctl_softc, io, CTL_UA_TARG_RESET); 12275 break; 12276 case CTL_TASK_BUS_RESET: 12277 retval = ctl_bus_reset(ctl_softc, io); 12278 break; 12279 case CTL_TASK_PORT_LOGIN: 12280 break; 12281 case CTL_TASK_PORT_LOGOUT: 12282 break; 12283 default: 12284 printf("ctl_run_task: got unknown task management event %d\n", 12285 io->taskio.task_action); 12286 break; 12287 } 12288 if (retval == 0) 12289 io->io_hdr.status = CTL_SUCCESS; 12290 else 12291 io->io_hdr.status = CTL_ERROR; 12292 ctl_done(io); 12293 } 12294 12295 /* 12296 * For HA operation. Handle commands that come in from the other 12297 * controller. 12298 */ 12299 static void 12300 ctl_handle_isc(union ctl_io *io) 12301 { 12302 int free_io; 12303 struct ctl_lun *lun; 12304 struct ctl_softc *ctl_softc; 12305 uint32_t targ_lun; 12306 12307 ctl_softc = control_softc; 12308 12309 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12310 lun = ctl_softc->ctl_luns[targ_lun]; 12311 12312 switch (io->io_hdr.msg_type) { 12313 case CTL_MSG_SERIALIZE: 12314 free_io = ctl_serialize_other_sc_cmd(&io->scsiio); 12315 break; 12316 case CTL_MSG_R2R: { 12317 const struct ctl_cmd_entry *entry; 12318 12319 /* 12320 * This is only used in SER_ONLY mode. 12321 */ 12322 free_io = 0; 12323 entry = ctl_get_cmd_entry(&io->scsiio); 12324 mtx_lock(&lun->lun_lock); 12325 if (ctl_scsiio_lun_check(ctl_softc, lun, 12326 entry, (struct ctl_scsiio *)io) != 0) { 12327 mtx_unlock(&lun->lun_lock); 12328 ctl_done(io); 12329 break; 12330 } 12331 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12332 mtx_unlock(&lun->lun_lock); 12333 ctl_enqueue_rtr(io); 12334 break; 12335 } 12336 case CTL_MSG_FINISH_IO: 12337 if (ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 12338 free_io = 0; 12339 ctl_done(io); 12340 } else { 12341 free_io = 1; 12342 mtx_lock(&lun->lun_lock); 12343 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, 12344 ooa_links); 12345 ctl_check_blocked(lun); 12346 mtx_unlock(&lun->lun_lock); 12347 } 12348 break; 12349 case CTL_MSG_PERS_ACTION: 12350 ctl_hndl_per_res_out_on_other_sc( 12351 (union ctl_ha_msg *)&io->presio.pr_msg); 12352 free_io = 1; 12353 break; 12354 case CTL_MSG_BAD_JUJU: 12355 free_io = 0; 12356 ctl_done(io); 12357 break; 12358 case CTL_MSG_DATAMOVE: 12359 /* Only used in XFER mode */ 12360 free_io = 0; 12361 ctl_datamove_remote(io); 12362 break; 12363 case CTL_MSG_DATAMOVE_DONE: 12364 /* Only used in XFER mode */ 12365 free_io = 0; 12366 io->scsiio.be_move_done(io); 12367 break; 12368 default: 12369 free_io = 1; 12370 printf("%s: Invalid message type %d\n", 12371 __func__, io->io_hdr.msg_type); 12372 break; 12373 } 12374 if (free_io) 12375 ctl_free_io(io); 12376 12377 } 12378 12379 12380 /* 12381 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12382 * there is no match. 12383 */ 12384 static ctl_lun_error_pattern 12385 ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12386 { 12387 const struct ctl_cmd_entry *entry; 12388 ctl_lun_error_pattern filtered_pattern, pattern; 12389 12390 pattern = desc->error_pattern; 12391 12392 /* 12393 * XXX KDM we need more data passed into this function to match a 12394 * custom pattern, and we actually need to implement custom pattern 12395 * matching. 12396 */ 12397 if (pattern & CTL_LUN_PAT_CMD) 12398 return (CTL_LUN_PAT_CMD); 12399 12400 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12401 return (CTL_LUN_PAT_ANY); 12402 12403 entry = ctl_get_cmd_entry(ctsio); 12404 12405 filtered_pattern = entry->pattern & pattern; 12406 12407 /* 12408 * If the user requested specific flags in the pattern (e.g. 12409 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12410 * flags. 12411 * 12412 * If the user did not specify any flags, it doesn't matter whether 12413 * or not the command supports the flags. 12414 */ 12415 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12416 (pattern & ~CTL_LUN_PAT_MASK)) 12417 return (CTL_LUN_PAT_NONE); 12418 12419 /* 12420 * If the user asked for a range check, see if the requested LBA 12421 * range overlaps with this command's LBA range. 12422 */ 12423 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12424 uint64_t lba1; 12425 uint32_t len1; 12426 ctl_action action; 12427 int retval; 12428 12429 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12430 if (retval != 0) 12431 return (CTL_LUN_PAT_NONE); 12432 12433 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12434 desc->lba_range.len); 12435 /* 12436 * A "pass" means that the LBA ranges don't overlap, so 12437 * this doesn't match the user's range criteria. 12438 */ 12439 if (action == CTL_ACTION_PASS) 12440 return (CTL_LUN_PAT_NONE); 12441 } 12442 12443 return (filtered_pattern); 12444 } 12445 12446 static void 12447 ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12448 { 12449 struct ctl_error_desc *desc, *desc2; 12450 12451 mtx_assert(&lun->lun_lock, MA_OWNED); 12452 12453 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12454 ctl_lun_error_pattern pattern; 12455 /* 12456 * Check to see whether this particular command matches 12457 * the pattern in the descriptor. 12458 */ 12459 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12460 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12461 continue; 12462 12463 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12464 case CTL_LUN_INJ_ABORTED: 12465 ctl_set_aborted(&io->scsiio); 12466 break; 12467 case CTL_LUN_INJ_MEDIUM_ERR: 12468 ctl_set_medium_error(&io->scsiio); 12469 break; 12470 case CTL_LUN_INJ_UA: 12471 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12472 * OCCURRED */ 12473 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12474 break; 12475 case CTL_LUN_INJ_CUSTOM: 12476 /* 12477 * We're assuming the user knows what he is doing. 12478 * Just copy the sense information without doing 12479 * checks. 12480 */ 12481 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12482 ctl_min(sizeof(desc->custom_sense), 12483 sizeof(io->scsiio.sense_data))); 12484 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12485 io->scsiio.sense_len = SSD_FULL_SIZE; 12486 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12487 break; 12488 case CTL_LUN_INJ_NONE: 12489 default: 12490 /* 12491 * If this is an error injection type we don't know 12492 * about, clear the continuous flag (if it is set) 12493 * so it will get deleted below. 12494 */ 12495 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12496 break; 12497 } 12498 /* 12499 * By default, each error injection action is a one-shot 12500 */ 12501 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12502 continue; 12503 12504 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12505 12506 free(desc, M_CTL); 12507 } 12508 } 12509 12510 #ifdef CTL_IO_DELAY 12511 static void 12512 ctl_datamove_timer_wakeup(void *arg) 12513 { 12514 union ctl_io *io; 12515 12516 io = (union ctl_io *)arg; 12517 12518 ctl_datamove(io); 12519 } 12520 #endif /* CTL_IO_DELAY */ 12521 12522 void 12523 ctl_datamove(union ctl_io *io) 12524 { 12525 void (*fe_datamove)(union ctl_io *io); 12526 12527 mtx_assert(&control_softc->ctl_lock, MA_NOTOWNED); 12528 12529 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12530 12531 #ifdef CTL_TIME_IO 12532 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12533 char str[256]; 12534 char path_str[64]; 12535 struct sbuf sb; 12536 12537 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12538 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12539 12540 sbuf_cat(&sb, path_str); 12541 switch (io->io_hdr.io_type) { 12542 case CTL_IO_SCSI: 12543 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12544 sbuf_printf(&sb, "\n"); 12545 sbuf_cat(&sb, path_str); 12546 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12547 io->scsiio.tag_num, io->scsiio.tag_type); 12548 break; 12549 case CTL_IO_TASK: 12550 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12551 "Tag Type: %d\n", io->taskio.task_action, 12552 io->taskio.tag_num, io->taskio.tag_type); 12553 break; 12554 default: 12555 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12556 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 12557 break; 12558 } 12559 sbuf_cat(&sb, path_str); 12560 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12561 (intmax_t)time_uptime - io->io_hdr.start_time); 12562 sbuf_finish(&sb); 12563 printf("%s", sbuf_data(&sb)); 12564 } 12565 #endif /* CTL_TIME_IO */ 12566 12567 #ifdef CTL_IO_DELAY 12568 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12569 struct ctl_lun *lun; 12570 12571 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12572 12573 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12574 } else { 12575 struct ctl_lun *lun; 12576 12577 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 12578 if ((lun != NULL) 12579 && (lun->delay_info.datamove_delay > 0)) { 12580 struct callout *callout; 12581 12582 callout = (struct callout *)&io->io_hdr.timer_bytes; 12583 callout_init(callout, /*mpsafe*/ 1); 12584 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12585 callout_reset(callout, 12586 lun->delay_info.datamove_delay * hz, 12587 ctl_datamove_timer_wakeup, io); 12588 if (lun->delay_info.datamove_type == 12589 CTL_DELAY_TYPE_ONESHOT) 12590 lun->delay_info.datamove_delay = 0; 12591 return; 12592 } 12593 } 12594 #endif 12595 12596 /* 12597 * This command has been aborted. Set the port status, so we fail 12598 * the data move. 12599 */ 12600 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12601 printf("ctl_datamove: tag 0x%04x on (%ju:%d:%ju:%d) aborted\n", 12602 io->scsiio.tag_num,(uintmax_t)io->io_hdr.nexus.initid.id, 12603 io->io_hdr.nexus.targ_port, 12604 (uintmax_t)io->io_hdr.nexus.targ_target.id, 12605 io->io_hdr.nexus.targ_lun); 12606 io->io_hdr.port_status = 31337; 12607 /* 12608 * Note that the backend, in this case, will get the 12609 * callback in its context. In other cases it may get 12610 * called in the frontend's interrupt thread context. 12611 */ 12612 io->scsiio.be_move_done(io); 12613 return; 12614 } 12615 12616 /* 12617 * If we're in XFER mode and this I/O is from the other shelf 12618 * controller, we need to send the DMA to the other side to 12619 * actually transfer the data to/from the host. In serialize only 12620 * mode the transfer happens below CTL and ctl_datamove() is only 12621 * called on the machine that originally received the I/O. 12622 */ 12623 if ((control_softc->ha_mode == CTL_HA_MODE_XFER) 12624 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12625 union ctl_ha_msg msg; 12626 uint32_t sg_entries_sent; 12627 int do_sg_copy; 12628 int i; 12629 12630 memset(&msg, 0, sizeof(msg)); 12631 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 12632 msg.hdr.original_sc = io->io_hdr.original_sc; 12633 msg.hdr.serializing_sc = io; 12634 msg.hdr.nexus = io->io_hdr.nexus; 12635 msg.dt.flags = io->io_hdr.flags; 12636 /* 12637 * We convert everything into a S/G list here. We can't 12638 * pass by reference, only by value between controllers. 12639 * So we can't pass a pointer to the S/G list, only as many 12640 * S/G entries as we can fit in here. If it's possible for 12641 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 12642 * then we need to break this up into multiple transfers. 12643 */ 12644 if (io->scsiio.kern_sg_entries == 0) { 12645 msg.dt.kern_sg_entries = 1; 12646 /* 12647 * If this is in cached memory, flush the cache 12648 * before we send the DMA request to the other 12649 * controller. We want to do this in either the 12650 * read or the write case. The read case is 12651 * straightforward. In the write case, we want to 12652 * make sure nothing is in the local cache that 12653 * could overwrite the DMAed data. 12654 */ 12655 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12656 /* 12657 * XXX KDM use bus_dmamap_sync() here. 12658 */ 12659 } 12660 12661 /* 12662 * Convert to a physical address if this is a 12663 * virtual address. 12664 */ 12665 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 12666 msg.dt.sg_list[0].addr = 12667 io->scsiio.kern_data_ptr; 12668 } else { 12669 /* 12670 * XXX KDM use busdma here! 12671 */ 12672 #if 0 12673 msg.dt.sg_list[0].addr = (void *) 12674 vtophys(io->scsiio.kern_data_ptr); 12675 #endif 12676 } 12677 12678 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 12679 do_sg_copy = 0; 12680 } else { 12681 struct ctl_sg_entry *sgl; 12682 12683 do_sg_copy = 1; 12684 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 12685 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 12686 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 12687 /* 12688 * XXX KDM use bus_dmamap_sync() here. 12689 */ 12690 } 12691 } 12692 12693 msg.dt.kern_data_len = io->scsiio.kern_data_len; 12694 msg.dt.kern_total_len = io->scsiio.kern_total_len; 12695 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 12696 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 12697 msg.dt.sg_sequence = 0; 12698 12699 /* 12700 * Loop until we've sent all of the S/G entries. On the 12701 * other end, we'll recompose these S/G entries into one 12702 * contiguous list before passing it to the 12703 */ 12704 for (sg_entries_sent = 0; sg_entries_sent < 12705 msg.dt.kern_sg_entries; msg.dt.sg_sequence++) { 12706 msg.dt.cur_sg_entries = ctl_min((sizeof(msg.dt.sg_list)/ 12707 sizeof(msg.dt.sg_list[0])), 12708 msg.dt.kern_sg_entries - sg_entries_sent); 12709 12710 if (do_sg_copy != 0) { 12711 struct ctl_sg_entry *sgl; 12712 int j; 12713 12714 sgl = (struct ctl_sg_entry *) 12715 io->scsiio.kern_data_ptr; 12716 /* 12717 * If this is in cached memory, flush the cache 12718 * before we send the DMA request to the other 12719 * controller. We want to do this in either 12720 * the * read or the write case. The read 12721 * case is straightforward. In the write 12722 * case, we want to make sure nothing is 12723 * in the local cache that could overwrite 12724 * the DMAed data. 12725 */ 12726 12727 for (i = sg_entries_sent, j = 0; 12728 i < msg.dt.cur_sg_entries; i++, j++) { 12729 if ((io->io_hdr.flags & 12730 CTL_FLAG_NO_DATASYNC) == 0) { 12731 /* 12732 * XXX KDM use bus_dmamap_sync() 12733 */ 12734 } 12735 if ((io->io_hdr.flags & 12736 CTL_FLAG_BUS_ADDR) == 0) { 12737 /* 12738 * XXX KDM use busdma. 12739 */ 12740 #if 0 12741 msg.dt.sg_list[j].addr =(void *) 12742 vtophys(sgl[i].addr); 12743 #endif 12744 } else { 12745 msg.dt.sg_list[j].addr = 12746 sgl[i].addr; 12747 } 12748 msg.dt.sg_list[j].len = sgl[i].len; 12749 } 12750 } 12751 12752 sg_entries_sent += msg.dt.cur_sg_entries; 12753 if (sg_entries_sent >= msg.dt.kern_sg_entries) 12754 msg.dt.sg_last = 1; 12755 else 12756 msg.dt.sg_last = 0; 12757 12758 /* 12759 * XXX KDM drop and reacquire the lock here? 12760 */ 12761 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12762 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 12763 /* 12764 * XXX do something here. 12765 */ 12766 } 12767 12768 msg.dt.sent_sg_entries = sg_entries_sent; 12769 } 12770 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12771 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) 12772 ctl_failover_io(io, /*have_lock*/ 0); 12773 12774 } else { 12775 12776 /* 12777 * Lookup the fe_datamove() function for this particular 12778 * front end. 12779 */ 12780 fe_datamove = 12781 control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12782 12783 fe_datamove(io); 12784 } 12785 } 12786 12787 static void 12788 ctl_send_datamove_done(union ctl_io *io, int have_lock) 12789 { 12790 union ctl_ha_msg msg; 12791 int isc_status; 12792 12793 memset(&msg, 0, sizeof(msg)); 12794 12795 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12796 msg.hdr.original_sc = io; 12797 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12798 msg.hdr.nexus = io->io_hdr.nexus; 12799 msg.hdr.status = io->io_hdr.status; 12800 msg.scsi.tag_num = io->scsiio.tag_num; 12801 msg.scsi.tag_type = io->scsiio.tag_type; 12802 msg.scsi.scsi_status = io->scsiio.scsi_status; 12803 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12804 sizeof(io->scsiio.sense_data)); 12805 msg.scsi.sense_len = io->scsiio.sense_len; 12806 msg.scsi.sense_residual = io->scsiio.sense_residual; 12807 msg.scsi.fetd_status = io->io_hdr.port_status; 12808 msg.scsi.residual = io->scsiio.residual; 12809 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12810 12811 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12812 ctl_failover_io(io, /*have_lock*/ have_lock); 12813 return; 12814 } 12815 12816 isc_status = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0); 12817 if (isc_status > CTL_HA_STATUS_SUCCESS) { 12818 /* XXX do something if this fails */ 12819 } 12820 12821 } 12822 12823 /* 12824 * The DMA to the remote side is done, now we need to tell the other side 12825 * we're done so it can continue with its data movement. 12826 */ 12827 static void 12828 ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12829 { 12830 union ctl_io *io; 12831 12832 io = rq->context; 12833 12834 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12835 printf("%s: ISC DMA write failed with error %d", __func__, 12836 rq->ret); 12837 ctl_set_internal_failure(&io->scsiio, 12838 /*sks_valid*/ 1, 12839 /*retry_count*/ rq->ret); 12840 } 12841 12842 ctl_dt_req_free(rq); 12843 12844 /* 12845 * In this case, we had to malloc the memory locally. Free it. 12846 */ 12847 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12848 int i; 12849 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12850 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12851 } 12852 /* 12853 * The data is in local and remote memory, so now we need to send 12854 * status (good or back) back to the other side. 12855 */ 12856 ctl_send_datamove_done(io, /*have_lock*/ 0); 12857 } 12858 12859 /* 12860 * We've moved the data from the host/controller into local memory. Now we 12861 * need to push it over to the remote controller's memory. 12862 */ 12863 static int 12864 ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12865 { 12866 int retval; 12867 12868 retval = 0; 12869 12870 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12871 ctl_datamove_remote_write_cb); 12872 12873 return (retval); 12874 } 12875 12876 static void 12877 ctl_datamove_remote_write(union ctl_io *io) 12878 { 12879 int retval; 12880 void (*fe_datamove)(union ctl_io *io); 12881 12882 /* 12883 * - Get the data from the host/HBA into local memory. 12884 * - DMA memory from the local controller to the remote controller. 12885 * - Send status back to the remote controller. 12886 */ 12887 12888 retval = ctl_datamove_remote_sgl_setup(io); 12889 if (retval != 0) 12890 return; 12891 12892 /* Switch the pointer over so the FETD knows what to do */ 12893 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12894 12895 /* 12896 * Use a custom move done callback, since we need to send completion 12897 * back to the other controller, not to the backend on this side. 12898 */ 12899 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12900 12901 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12902 12903 fe_datamove(io); 12904 12905 return; 12906 12907 } 12908 12909 static int 12910 ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12911 { 12912 #if 0 12913 char str[256]; 12914 char path_str[64]; 12915 struct sbuf sb; 12916 #endif 12917 12918 /* 12919 * In this case, we had to malloc the memory locally. Free it. 12920 */ 12921 if ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0) { 12922 int i; 12923 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12924 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12925 } 12926 12927 #if 0 12928 scsi_path_string(io, path_str, sizeof(path_str)); 12929 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12930 sbuf_cat(&sb, path_str); 12931 scsi_command_string(&io->scsiio, NULL, &sb); 12932 sbuf_printf(&sb, "\n"); 12933 sbuf_cat(&sb, path_str); 12934 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12935 io->scsiio.tag_num, io->scsiio.tag_type); 12936 sbuf_cat(&sb, path_str); 12937 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12938 io->io_hdr.flags, io->io_hdr.status); 12939 sbuf_finish(&sb); 12940 printk("%s", sbuf_data(&sb)); 12941 #endif 12942 12943 12944 /* 12945 * The read is done, now we need to send status (good or bad) back 12946 * to the other side. 12947 */ 12948 ctl_send_datamove_done(io, /*have_lock*/ 0); 12949 12950 return (0); 12951 } 12952 12953 static void 12954 ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12955 { 12956 union ctl_io *io; 12957 void (*fe_datamove)(union ctl_io *io); 12958 12959 io = rq->context; 12960 12961 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12962 printf("%s: ISC DMA read failed with error %d", __func__, 12963 rq->ret); 12964 ctl_set_internal_failure(&io->scsiio, 12965 /*sks_valid*/ 1, 12966 /*retry_count*/ rq->ret); 12967 } 12968 12969 ctl_dt_req_free(rq); 12970 12971 /* Switch the pointer over so the FETD knows what to do */ 12972 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12973 12974 /* 12975 * Use a custom move done callback, since we need to send completion 12976 * back to the other controller, not to the backend on this side. 12977 */ 12978 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12979 12980 /* XXX KDM add checks like the ones in ctl_datamove? */ 12981 12982 fe_datamove = control_softc->ctl_ports[ctl_port_idx(io->io_hdr.nexus.targ_port)]->fe_datamove; 12983 12984 fe_datamove(io); 12985 } 12986 12987 static int 12988 ctl_datamove_remote_sgl_setup(union ctl_io *io) 12989 { 12990 struct ctl_sg_entry *local_sglist, *remote_sglist; 12991 struct ctl_sg_entry *local_dma_sglist, *remote_dma_sglist; 12992 struct ctl_softc *softc; 12993 int retval; 12994 int i; 12995 12996 retval = 0; 12997 softc = control_softc; 12998 12999 local_sglist = io->io_hdr.local_sglist; 13000 local_dma_sglist = io->io_hdr.local_dma_sglist; 13001 remote_sglist = io->io_hdr.remote_sglist; 13002 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13003 13004 if (io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) { 13005 for (i = 0; i < io->scsiio.kern_sg_entries; i++) { 13006 local_sglist[i].len = remote_sglist[i].len; 13007 13008 /* 13009 * XXX Detect the situation where the RS-level I/O 13010 * redirector on the other side has already read the 13011 * data off of the AOR RS on this side, and 13012 * transferred it to remote (mirror) memory on the 13013 * other side. Since we already have the data in 13014 * memory here, we just need to use it. 13015 * 13016 * XXX KDM this can probably be removed once we 13017 * get the cache device code in and take the 13018 * current AOR implementation out. 13019 */ 13020 #ifdef NEEDTOPORT 13021 if ((remote_sglist[i].addr >= 13022 (void *)vtophys(softc->mirr->addr)) 13023 && (remote_sglist[i].addr < 13024 ((void *)vtophys(softc->mirr->addr) + 13025 CacheMirrorOffset))) { 13026 local_sglist[i].addr = remote_sglist[i].addr - 13027 CacheMirrorOffset; 13028 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13029 CTL_FLAG_DATA_IN) 13030 io->io_hdr.flags |= CTL_FLAG_REDIR_DONE; 13031 } else { 13032 local_sglist[i].addr = remote_sglist[i].addr + 13033 CacheMirrorOffset; 13034 } 13035 #endif 13036 #if 0 13037 printf("%s: local %p, remote %p, len %d\n", 13038 __func__, local_sglist[i].addr, 13039 remote_sglist[i].addr, local_sglist[i].len); 13040 #endif 13041 } 13042 } else { 13043 uint32_t len_to_go; 13044 13045 /* 13046 * In this case, we don't have automatically allocated 13047 * memory for this I/O on this controller. This typically 13048 * happens with internal CTL I/O -- e.g. inquiry, mode 13049 * sense, etc. Anything coming from RAIDCore will have 13050 * a mirror area available. 13051 */ 13052 len_to_go = io->scsiio.kern_data_len; 13053 13054 /* 13055 * Clear the no datasync flag, we have to use malloced 13056 * buffers. 13057 */ 13058 io->io_hdr.flags &= ~CTL_FLAG_NO_DATASYNC; 13059 13060 /* 13061 * The difficult thing here is that the size of the various 13062 * S/G segments may be different than the size from the 13063 * remote controller. That'll make it harder when DMAing 13064 * the data back to the other side. 13065 */ 13066 for (i = 0; (i < sizeof(io->io_hdr.remote_sglist) / 13067 sizeof(io->io_hdr.remote_sglist[0])) && 13068 (len_to_go > 0); i++) { 13069 local_sglist[i].len = ctl_min(len_to_go, 131072); 13070 CTL_SIZE_8B(local_dma_sglist[i].len, 13071 local_sglist[i].len); 13072 local_sglist[i].addr = 13073 malloc(local_dma_sglist[i].len, M_CTL,M_WAITOK); 13074 13075 local_dma_sglist[i].addr = local_sglist[i].addr; 13076 13077 if (local_sglist[i].addr == NULL) { 13078 int j; 13079 13080 printf("malloc failed for %zd bytes!", 13081 local_dma_sglist[i].len); 13082 for (j = 0; j < i; j++) { 13083 free(local_sglist[j].addr, M_CTL); 13084 } 13085 ctl_set_internal_failure(&io->scsiio, 13086 /*sks_valid*/ 1, 13087 /*retry_count*/ 4857); 13088 retval = 1; 13089 goto bailout_error; 13090 13091 } 13092 /* XXX KDM do we need a sync here? */ 13093 13094 len_to_go -= local_sglist[i].len; 13095 } 13096 /* 13097 * Reset the number of S/G entries accordingly. The 13098 * original number of S/G entries is available in 13099 * rem_sg_entries. 13100 */ 13101 io->scsiio.kern_sg_entries = i; 13102 13103 #if 0 13104 printf("%s: kern_sg_entries = %d\n", __func__, 13105 io->scsiio.kern_sg_entries); 13106 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13107 printf("%s: sg[%d] = %p, %d (DMA: %d)\n", __func__, i, 13108 local_sglist[i].addr, local_sglist[i].len, 13109 local_dma_sglist[i].len); 13110 #endif 13111 } 13112 13113 13114 return (retval); 13115 13116 bailout_error: 13117 13118 ctl_send_datamove_done(io, /*have_lock*/ 0); 13119 13120 return (retval); 13121 } 13122 13123 static int 13124 ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 13125 ctl_ha_dt_cb callback) 13126 { 13127 struct ctl_ha_dt_req *rq; 13128 struct ctl_sg_entry *remote_sglist, *local_sglist; 13129 struct ctl_sg_entry *remote_dma_sglist, *local_dma_sglist; 13130 uint32_t local_used, remote_used, total_used; 13131 int retval; 13132 int i, j; 13133 13134 retval = 0; 13135 13136 rq = ctl_dt_req_alloc(); 13137 13138 /* 13139 * If we failed to allocate the request, and if the DMA didn't fail 13140 * anyway, set busy status. This is just a resource allocation 13141 * failure. 13142 */ 13143 if ((rq == NULL) 13144 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)) 13145 ctl_set_busy(&io->scsiio); 13146 13147 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) { 13148 13149 if (rq != NULL) 13150 ctl_dt_req_free(rq); 13151 13152 /* 13153 * The data move failed. We need to return status back 13154 * to the other controller. No point in trying to DMA 13155 * data to the remote controller. 13156 */ 13157 13158 ctl_send_datamove_done(io, /*have_lock*/ 0); 13159 13160 retval = 1; 13161 13162 goto bailout; 13163 } 13164 13165 local_sglist = io->io_hdr.local_sglist; 13166 local_dma_sglist = io->io_hdr.local_dma_sglist; 13167 remote_sglist = io->io_hdr.remote_sglist; 13168 remote_dma_sglist = io->io_hdr.remote_dma_sglist; 13169 local_used = 0; 13170 remote_used = 0; 13171 total_used = 0; 13172 13173 if (io->io_hdr.flags & CTL_FLAG_REDIR_DONE) { 13174 rq->ret = CTL_HA_STATUS_SUCCESS; 13175 rq->context = io; 13176 callback(rq); 13177 goto bailout; 13178 } 13179 13180 /* 13181 * Pull/push the data over the wire from/to the other controller. 13182 * This takes into account the possibility that the local and 13183 * remote sglists may not be identical in terms of the size of 13184 * the elements and the number of elements. 13185 * 13186 * One fundamental assumption here is that the length allocated for 13187 * both the local and remote sglists is identical. Otherwise, we've 13188 * essentially got a coding error of some sort. 13189 */ 13190 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 13191 int isc_ret; 13192 uint32_t cur_len, dma_length; 13193 uint8_t *tmp_ptr; 13194 13195 rq->id = CTL_HA_DATA_CTL; 13196 rq->command = command; 13197 rq->context = io; 13198 13199 /* 13200 * Both pointers should be aligned. But it is possible 13201 * that the allocation length is not. They should both 13202 * also have enough slack left over at the end, though, 13203 * to round up to the next 8 byte boundary. 13204 */ 13205 cur_len = ctl_min(local_sglist[i].len - local_used, 13206 remote_sglist[j].len - remote_used); 13207 13208 /* 13209 * In this case, we have a size issue and need to decrease 13210 * the size, except in the case where we actually have less 13211 * than 8 bytes left. In that case, we need to increase 13212 * the DMA length to get the last bit. 13213 */ 13214 if ((cur_len & 0x7) != 0) { 13215 if (cur_len > 0x7) { 13216 cur_len = cur_len - (cur_len & 0x7); 13217 dma_length = cur_len; 13218 } else { 13219 CTL_SIZE_8B(dma_length, cur_len); 13220 } 13221 13222 } else 13223 dma_length = cur_len; 13224 13225 /* 13226 * If we had to allocate memory for this I/O, instead of using 13227 * the non-cached mirror memory, we'll need to flush the cache 13228 * before trying to DMA to the other controller. 13229 * 13230 * We could end up doing this multiple times for the same 13231 * segment if we have a larger local segment than remote 13232 * segment. That shouldn't be an issue. 13233 */ 13234 if ((io->io_hdr.flags & CTL_FLAG_NO_DATASYNC) == 0) { 13235 /* 13236 * XXX KDM use bus_dmamap_sync() here. 13237 */ 13238 } 13239 13240 rq->size = dma_length; 13241 13242 tmp_ptr = (uint8_t *)local_sglist[i].addr; 13243 tmp_ptr += local_used; 13244 13245 /* Use physical addresses when talking to ISC hardware */ 13246 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 13247 /* XXX KDM use busdma */ 13248 #if 0 13249 rq->local = vtophys(tmp_ptr); 13250 #endif 13251 } else 13252 rq->local = tmp_ptr; 13253 13254 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 13255 tmp_ptr += remote_used; 13256 rq->remote = tmp_ptr; 13257 13258 rq->callback = NULL; 13259 13260 local_used += cur_len; 13261 if (local_used >= local_sglist[i].len) { 13262 i++; 13263 local_used = 0; 13264 } 13265 13266 remote_used += cur_len; 13267 if (remote_used >= remote_sglist[j].len) { 13268 j++; 13269 remote_used = 0; 13270 } 13271 total_used += cur_len; 13272 13273 if (total_used >= io->scsiio.kern_data_len) 13274 rq->callback = callback; 13275 13276 if ((rq->size & 0x7) != 0) { 13277 printf("%s: warning: size %d is not on 8b boundary\n", 13278 __func__, rq->size); 13279 } 13280 if (((uintptr_t)rq->local & 0x7) != 0) { 13281 printf("%s: warning: local %p not on 8b boundary\n", 13282 __func__, rq->local); 13283 } 13284 if (((uintptr_t)rq->remote & 0x7) != 0) { 13285 printf("%s: warning: remote %p not on 8b boundary\n", 13286 __func__, rq->local); 13287 } 13288 #if 0 13289 printf("%s: %s: local %#x remote %#x size %d\n", __func__, 13290 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13291 rq->local, rq->remote, rq->size); 13292 #endif 13293 13294 isc_ret = ctl_dt_single(rq); 13295 if (isc_ret == CTL_HA_STATUS_WAIT) 13296 continue; 13297 13298 if (isc_ret == CTL_HA_STATUS_DISCONNECT) { 13299 rq->ret = CTL_HA_STATUS_SUCCESS; 13300 } else { 13301 rq->ret = isc_ret; 13302 } 13303 callback(rq); 13304 goto bailout; 13305 } 13306 13307 bailout: 13308 return (retval); 13309 13310 } 13311 13312 static void 13313 ctl_datamove_remote_read(union ctl_io *io) 13314 { 13315 int retval; 13316 int i; 13317 13318 /* 13319 * This will send an error to the other controller in the case of a 13320 * failure. 13321 */ 13322 retval = ctl_datamove_remote_sgl_setup(io); 13323 if (retval != 0) 13324 return; 13325 13326 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13327 ctl_datamove_remote_read_cb); 13328 if ((retval != 0) 13329 && ((io->io_hdr.flags & CTL_FLAG_AUTO_MIRROR) == 0)) { 13330 /* 13331 * Make sure we free memory if there was an error.. The 13332 * ctl_datamove_remote_xfer() function will send the 13333 * datamove done message, or call the callback with an 13334 * error if there is a problem. 13335 */ 13336 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13337 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13338 } 13339 13340 return; 13341 } 13342 13343 /* 13344 * Process a datamove request from the other controller. This is used for 13345 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13346 * first. Once that is complete, the data gets DMAed into the remote 13347 * controller's memory. For reads, we DMA from the remote controller's 13348 * memory into our memory first, and then move it out to the FETD. 13349 */ 13350 static void 13351 ctl_datamove_remote(union ctl_io *io) 13352 { 13353 struct ctl_softc *softc; 13354 13355 softc = control_softc; 13356 13357 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 13358 13359 /* 13360 * Note that we look for an aborted I/O here, but don't do some of 13361 * the other checks that ctl_datamove() normally does. 13362 * We don't need to run the datamove delay code, since that should 13363 * have been done if need be on the other controller. 13364 */ 13365 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13366 printf("%s: tag 0x%04x on (%d:%d:%d:%d) aborted\n", __func__, 13367 io->scsiio.tag_num, io->io_hdr.nexus.initid.id, 13368 io->io_hdr.nexus.targ_port, 13369 io->io_hdr.nexus.targ_target.id, 13370 io->io_hdr.nexus.targ_lun); 13371 io->io_hdr.port_status = 31338; 13372 ctl_send_datamove_done(io, /*have_lock*/ 0); 13373 return; 13374 } 13375 13376 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) { 13377 ctl_datamove_remote_write(io); 13378 } else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN){ 13379 ctl_datamove_remote_read(io); 13380 } else { 13381 union ctl_ha_msg msg; 13382 struct scsi_sense_data *sense; 13383 uint8_t sks[3]; 13384 int retry_count; 13385 13386 memset(&msg, 0, sizeof(msg)); 13387 13388 msg.hdr.msg_type = CTL_MSG_BAD_JUJU; 13389 msg.hdr.status = CTL_SCSI_ERROR; 13390 msg.scsi.scsi_status = SCSI_STATUS_CHECK_COND; 13391 13392 retry_count = 4243; 13393 13394 sense = &msg.scsi.sense_data; 13395 sks[0] = SSD_SCS_VALID; 13396 sks[1] = (retry_count >> 8) & 0xff; 13397 sks[2] = retry_count & 0xff; 13398 13399 /* "Internal target failure" */ 13400 scsi_set_sense_data(sense, 13401 /*sense_format*/ SSD_TYPE_NONE, 13402 /*current_error*/ 1, 13403 /*sense_key*/ SSD_KEY_HARDWARE_ERROR, 13404 /*asc*/ 0x44, 13405 /*ascq*/ 0x00, 13406 /*type*/ SSD_ELEM_SKS, 13407 /*size*/ sizeof(sks), 13408 /*data*/ sks, 13409 SSD_ELEM_NONE); 13410 13411 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 13412 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13413 ctl_failover_io(io, /*have_lock*/ 1); 13414 return; 13415 } 13416 13417 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg), 0) > 13418 CTL_HA_STATUS_SUCCESS) { 13419 /* XXX KDM what to do if this fails? */ 13420 } 13421 return; 13422 } 13423 13424 } 13425 13426 static int 13427 ctl_process_done(union ctl_io *io) 13428 { 13429 struct ctl_lun *lun; 13430 struct ctl_softc *ctl_softc; 13431 void (*fe_done)(union ctl_io *io); 13432 uint32_t targ_port = ctl_port_idx(io->io_hdr.nexus.targ_port); 13433 13434 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13435 13436 fe_done = 13437 control_softc->ctl_ports[targ_port]->fe_done; 13438 13439 #ifdef CTL_TIME_IO 13440 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13441 char str[256]; 13442 char path_str[64]; 13443 struct sbuf sb; 13444 13445 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13446 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13447 13448 sbuf_cat(&sb, path_str); 13449 switch (io->io_hdr.io_type) { 13450 case CTL_IO_SCSI: 13451 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13452 sbuf_printf(&sb, "\n"); 13453 sbuf_cat(&sb, path_str); 13454 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13455 io->scsiio.tag_num, io->scsiio.tag_type); 13456 break; 13457 case CTL_IO_TASK: 13458 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13459 "Tag Type: %d\n", io->taskio.task_action, 13460 io->taskio.tag_num, io->taskio.tag_type); 13461 break; 13462 default: 13463 printf("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13464 panic("Invalid CTL I/O type %d\n", io->io_hdr.io_type); 13465 break; 13466 } 13467 sbuf_cat(&sb, path_str); 13468 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13469 (intmax_t)time_uptime - io->io_hdr.start_time); 13470 sbuf_finish(&sb); 13471 printf("%s", sbuf_data(&sb)); 13472 } 13473 #endif /* CTL_TIME_IO */ 13474 13475 switch (io->io_hdr.io_type) { 13476 case CTL_IO_SCSI: 13477 break; 13478 case CTL_IO_TASK: 13479 if (bootverbose || verbose > 0) 13480 ctl_io_error_print(io, NULL); 13481 if (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) 13482 ctl_free_io(io); 13483 else 13484 fe_done(io); 13485 return (CTL_RETVAL_COMPLETE); 13486 break; 13487 default: 13488 printf("ctl_process_done: invalid io type %d\n", 13489 io->io_hdr.io_type); 13490 panic("ctl_process_done: invalid io type %d\n", 13491 io->io_hdr.io_type); 13492 break; /* NOTREACHED */ 13493 } 13494 13495 lun = (struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13496 if (lun == NULL) { 13497 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13498 io->io_hdr.nexus.targ_mapped_lun)); 13499 fe_done(io); 13500 goto bailout; 13501 } 13502 ctl_softc = lun->ctl_softc; 13503 13504 mtx_lock(&lun->lun_lock); 13505 13506 /* 13507 * Check to see if we have any errors to inject here. We only 13508 * inject errors for commands that don't already have errors set. 13509 */ 13510 if ((STAILQ_FIRST(&lun->error_list) != NULL) 13511 && ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) 13512 ctl_inject_error(lun, io); 13513 13514 /* 13515 * XXX KDM how do we treat commands that aren't completed 13516 * successfully? 13517 * 13518 * XXX KDM should we also track I/O latency? 13519 */ 13520 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13521 io->io_hdr.io_type == CTL_IO_SCSI) { 13522 #ifdef CTL_TIME_IO 13523 struct bintime cur_bt; 13524 #endif 13525 int type; 13526 13527 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13528 CTL_FLAG_DATA_IN) 13529 type = CTL_STATS_READ; 13530 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13531 CTL_FLAG_DATA_OUT) 13532 type = CTL_STATS_WRITE; 13533 else 13534 type = CTL_STATS_NO_IO; 13535 13536 lun->stats.ports[targ_port].bytes[type] += 13537 io->scsiio.kern_total_len; 13538 lun->stats.ports[targ_port].operations[type]++; 13539 #ifdef CTL_TIME_IO 13540 bintime_add(&lun->stats.ports[targ_port].dma_time[type], 13541 &io->io_hdr.dma_bt); 13542 lun->stats.ports[targ_port].num_dmas[type] += 13543 io->io_hdr.num_dmas; 13544 getbintime(&cur_bt); 13545 bintime_sub(&cur_bt, &io->io_hdr.start_bt); 13546 bintime_add(&lun->stats.ports[targ_port].time[type], &cur_bt); 13547 #endif 13548 } 13549 13550 /* 13551 * Remove this from the OOA queue. 13552 */ 13553 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13554 13555 /* 13556 * Run through the blocked queue on this LUN and see if anything 13557 * has become unblocked, now that this transaction is done. 13558 */ 13559 ctl_check_blocked(lun); 13560 13561 /* 13562 * If the LUN has been invalidated, free it if there is nothing 13563 * left on its OOA queue. 13564 */ 13565 if ((lun->flags & CTL_LUN_INVALID) 13566 && TAILQ_EMPTY(&lun->ooa_queue)) { 13567 mtx_unlock(&lun->lun_lock); 13568 mtx_lock(&ctl_softc->ctl_lock); 13569 ctl_free_lun(lun); 13570 mtx_unlock(&ctl_softc->ctl_lock); 13571 } else 13572 mtx_unlock(&lun->lun_lock); 13573 13574 /* 13575 * If this command has been aborted, make sure we set the status 13576 * properly. The FETD is responsible for freeing the I/O and doing 13577 * whatever it needs to do to clean up its state. 13578 */ 13579 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13580 ctl_set_task_aborted(&io->scsiio); 13581 13582 /* 13583 * We print out status for every task management command. For SCSI 13584 * commands, we filter out any unit attention errors; they happen 13585 * on every boot, and would clutter up the log. Note: task 13586 * management commands aren't printed here, they are printed above, 13587 * since they should never even make it down here. 13588 */ 13589 switch (io->io_hdr.io_type) { 13590 case CTL_IO_SCSI: { 13591 int error_code, sense_key, asc, ascq; 13592 13593 sense_key = 0; 13594 13595 if (((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SCSI_ERROR) 13596 && (io->scsiio.scsi_status == SCSI_STATUS_CHECK_COND)) { 13597 /* 13598 * Since this is just for printing, no need to 13599 * show errors here. 13600 */ 13601 scsi_extract_sense_len(&io->scsiio.sense_data, 13602 io->scsiio.sense_len, 13603 &error_code, 13604 &sense_key, 13605 &asc, 13606 &ascq, 13607 /*show_errors*/ 0); 13608 } 13609 13610 if (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) 13611 && (((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SCSI_ERROR) 13612 || (io->scsiio.scsi_status != SCSI_STATUS_CHECK_COND) 13613 || (sense_key != SSD_KEY_UNIT_ATTENTION))) { 13614 13615 if ((time_uptime - ctl_softc->last_print_jiffies) <= 0){ 13616 ctl_softc->skipped_prints++; 13617 } else { 13618 uint32_t skipped_prints; 13619 13620 skipped_prints = ctl_softc->skipped_prints; 13621 13622 ctl_softc->skipped_prints = 0; 13623 ctl_softc->last_print_jiffies = time_uptime; 13624 13625 if (skipped_prints > 0) { 13626 #ifdef NEEDTOPORT 13627 csevent_log(CSC_CTL | CSC_SHELF_SW | 13628 CTL_ERROR_REPORT, 13629 csevent_LogType_Trace, 13630 csevent_Severity_Information, 13631 csevent_AlertLevel_Green, 13632 csevent_FRU_Firmware, 13633 csevent_FRU_Unknown, 13634 "High CTL error volume, %d prints " 13635 "skipped", skipped_prints); 13636 #endif 13637 } 13638 if (bootverbose || verbose > 0) 13639 ctl_io_error_print(io, NULL); 13640 } 13641 } 13642 break; 13643 } 13644 case CTL_IO_TASK: 13645 if (bootverbose || verbose > 0) 13646 ctl_io_error_print(io, NULL); 13647 break; 13648 default: 13649 break; 13650 } 13651 13652 /* 13653 * Tell the FETD or the other shelf controller we're done with this 13654 * command. Note that only SCSI commands get to this point. Task 13655 * management commands are completed above. 13656 * 13657 * We only send status to the other controller if we're in XFER 13658 * mode. In SER_ONLY mode, the I/O is done on the controller that 13659 * received the I/O (from CTL's perspective), and so the status is 13660 * generated there. 13661 * 13662 * XXX KDM if we hold the lock here, we could cause a deadlock 13663 * if the frontend comes back in in this context to queue 13664 * something. 13665 */ 13666 if ((ctl_softc->ha_mode == CTL_HA_MODE_XFER) 13667 && (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 13668 union ctl_ha_msg msg; 13669 13670 memset(&msg, 0, sizeof(msg)); 13671 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13672 msg.hdr.original_sc = io->io_hdr.original_sc; 13673 msg.hdr.nexus = io->io_hdr.nexus; 13674 msg.hdr.status = io->io_hdr.status; 13675 msg.scsi.scsi_status = io->scsiio.scsi_status; 13676 msg.scsi.tag_num = io->scsiio.tag_num; 13677 msg.scsi.tag_type = io->scsiio.tag_type; 13678 msg.scsi.sense_len = io->scsiio.sense_len; 13679 msg.scsi.sense_residual = io->scsiio.sense_residual; 13680 msg.scsi.residual = io->scsiio.residual; 13681 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 13682 sizeof(io->scsiio.sense_data)); 13683 /* 13684 * We copy this whether or not this is an I/O-related 13685 * command. Otherwise, we'd have to go and check to see 13686 * whether it's a read/write command, and it really isn't 13687 * worth it. 13688 */ 13689 memcpy(&msg.scsi.lbalen, 13690 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN].bytes, 13691 sizeof(msg.scsi.lbalen)); 13692 13693 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13694 sizeof(msg), 0) > CTL_HA_STATUS_SUCCESS) { 13695 /* XXX do something here */ 13696 } 13697 13698 ctl_free_io(io); 13699 } else 13700 fe_done(io); 13701 13702 bailout: 13703 13704 return (CTL_RETVAL_COMPLETE); 13705 } 13706 13707 #ifdef CTL_WITH_CA 13708 /* 13709 * Front end should call this if it doesn't do autosense. When the request 13710 * sense comes back in from the initiator, we'll dequeue this and send it. 13711 */ 13712 int 13713 ctl_queue_sense(union ctl_io *io) 13714 { 13715 struct ctl_lun *lun; 13716 struct ctl_softc *ctl_softc; 13717 uint32_t initidx, targ_lun; 13718 13719 ctl_softc = control_softc; 13720 13721 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13722 13723 /* 13724 * LUN lookup will likely move to the ctl_work_thread() once we 13725 * have our new queueing infrastructure (that doesn't put things on 13726 * a per-LUN queue initially). That is so that we can handle 13727 * things like an INQUIRY to a LUN that we don't have enabled. We 13728 * can't deal with that right now. 13729 */ 13730 mtx_lock(&ctl_softc->ctl_lock); 13731 13732 /* 13733 * If we don't have a LUN for this, just toss the sense 13734 * information. 13735 */ 13736 targ_lun = io->io_hdr.nexus.targ_lun; 13737 targ_lun = ctl_map_lun(io->io_hdr.nexus.targ_port, targ_lun); 13738 if ((targ_lun < CTL_MAX_LUNS) 13739 && (ctl_softc->ctl_luns[targ_lun] != NULL)) 13740 lun = ctl_softc->ctl_luns[targ_lun]; 13741 else 13742 goto bailout; 13743 13744 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13745 13746 mtx_lock(&lun->lun_lock); 13747 /* 13748 * Already have CA set for this LUN...toss the sense information. 13749 */ 13750 if (ctl_is_set(lun->have_ca, initidx)) { 13751 mtx_unlock(&lun->lun_lock); 13752 goto bailout; 13753 } 13754 13755 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13756 ctl_min(sizeof(lun->pending_sense[initidx]), 13757 sizeof(io->scsiio.sense_data))); 13758 ctl_set_mask(lun->have_ca, initidx); 13759 mtx_unlock(&lun->lun_lock); 13760 13761 bailout: 13762 mtx_unlock(&ctl_softc->ctl_lock); 13763 13764 ctl_free_io(io); 13765 13766 return (CTL_RETVAL_COMPLETE); 13767 } 13768 #endif 13769 13770 /* 13771 * Primary command inlet from frontend ports. All SCSI and task I/O 13772 * requests must go through this function. 13773 */ 13774 int 13775 ctl_queue(union ctl_io *io) 13776 { 13777 struct ctl_softc *ctl_softc; 13778 13779 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13780 13781 ctl_softc = control_softc; 13782 13783 #ifdef CTL_TIME_IO 13784 io->io_hdr.start_time = time_uptime; 13785 getbintime(&io->io_hdr.start_bt); 13786 #endif /* CTL_TIME_IO */ 13787 13788 /* Map FE-specific LUN ID into global one. */ 13789 io->io_hdr.nexus.targ_mapped_lun = 13790 ctl_map_lun(io->io_hdr.nexus.targ_port, io->io_hdr.nexus.targ_lun); 13791 13792 switch (io->io_hdr.io_type) { 13793 case CTL_IO_SCSI: 13794 case CTL_IO_TASK: 13795 ctl_enqueue_incoming(io); 13796 break; 13797 default: 13798 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13799 return (EINVAL); 13800 } 13801 13802 return (CTL_RETVAL_COMPLETE); 13803 } 13804 13805 #ifdef CTL_IO_DELAY 13806 static void 13807 ctl_done_timer_wakeup(void *arg) 13808 { 13809 union ctl_io *io; 13810 13811 io = (union ctl_io *)arg; 13812 ctl_done(io); 13813 } 13814 #endif /* CTL_IO_DELAY */ 13815 13816 void 13817 ctl_done(union ctl_io *io) 13818 { 13819 struct ctl_softc *ctl_softc; 13820 13821 ctl_softc = control_softc; 13822 13823 /* 13824 * Enable this to catch duplicate completion issues. 13825 */ 13826 #if 0 13827 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13828 printf("%s: type %d msg %d cdb %x iptl: " 13829 "%d:%d:%d:%d tag 0x%04x " 13830 "flag %#x status %x\n", 13831 __func__, 13832 io->io_hdr.io_type, 13833 io->io_hdr.msg_type, 13834 io->scsiio.cdb[0], 13835 io->io_hdr.nexus.initid.id, 13836 io->io_hdr.nexus.targ_port, 13837 io->io_hdr.nexus.targ_target.id, 13838 io->io_hdr.nexus.targ_lun, 13839 (io->io_hdr.io_type == 13840 CTL_IO_TASK) ? 13841 io->taskio.tag_num : 13842 io->scsiio.tag_num, 13843 io->io_hdr.flags, 13844 io->io_hdr.status); 13845 } else 13846 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13847 #endif 13848 13849 /* 13850 * This is an internal copy of an I/O, and should not go through 13851 * the normal done processing logic. 13852 */ 13853 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13854 return; 13855 13856 /* 13857 * We need to send a msg to the serializing shelf to finish the IO 13858 * as well. We don't send a finish message to the other shelf if 13859 * this is a task management command. Task management commands 13860 * aren't serialized in the OOA queue, but rather just executed on 13861 * both shelf controllers for commands that originated on that 13862 * controller. 13863 */ 13864 if ((io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC) 13865 && (io->io_hdr.io_type != CTL_IO_TASK)) { 13866 union ctl_ha_msg msg_io; 13867 13868 msg_io.hdr.msg_type = CTL_MSG_FINISH_IO; 13869 msg_io.hdr.serializing_sc = io->io_hdr.serializing_sc; 13870 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_io, 13871 sizeof(msg_io), 0 ) != CTL_HA_STATUS_SUCCESS) { 13872 } 13873 /* continue on to finish IO */ 13874 } 13875 #ifdef CTL_IO_DELAY 13876 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13877 struct ctl_lun *lun; 13878 13879 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13880 13881 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13882 } else { 13883 struct ctl_lun *lun; 13884 13885 lun =(struct ctl_lun *)io->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13886 13887 if ((lun != NULL) 13888 && (lun->delay_info.done_delay > 0)) { 13889 struct callout *callout; 13890 13891 callout = (struct callout *)&io->io_hdr.timer_bytes; 13892 callout_init(callout, /*mpsafe*/ 1); 13893 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13894 callout_reset(callout, 13895 lun->delay_info.done_delay * hz, 13896 ctl_done_timer_wakeup, io); 13897 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13898 lun->delay_info.done_delay = 0; 13899 return; 13900 } 13901 } 13902 #endif /* CTL_IO_DELAY */ 13903 13904 ctl_enqueue_done(io); 13905 } 13906 13907 int 13908 ctl_isc(struct ctl_scsiio *ctsio) 13909 { 13910 struct ctl_lun *lun; 13911 int retval; 13912 13913 lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr; 13914 13915 CTL_DEBUG_PRINT(("ctl_isc: command: %02x\n", ctsio->cdb[0])); 13916 13917 CTL_DEBUG_PRINT(("ctl_isc: calling data_submit()\n")); 13918 13919 retval = lun->backend->data_submit((union ctl_io *)ctsio); 13920 13921 return (retval); 13922 } 13923 13924 13925 static void 13926 ctl_work_thread(void *arg) 13927 { 13928 struct ctl_thread *thr = (struct ctl_thread *)arg; 13929 struct ctl_softc *softc = thr->ctl_softc; 13930 union ctl_io *io; 13931 int retval; 13932 13933 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13934 13935 for (;;) { 13936 retval = 0; 13937 13938 /* 13939 * We handle the queues in this order: 13940 * - ISC 13941 * - done queue (to free up resources, unblock other commands) 13942 * - RtR queue 13943 * - incoming queue 13944 * 13945 * If those queues are empty, we break out of the loop and 13946 * go to sleep. 13947 */ 13948 mtx_lock(&thr->queue_lock); 13949 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13950 if (io != NULL) { 13951 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13952 mtx_unlock(&thr->queue_lock); 13953 ctl_handle_isc(io); 13954 continue; 13955 } 13956 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13957 if (io != NULL) { 13958 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13959 /* clear any blocked commands, call fe_done */ 13960 mtx_unlock(&thr->queue_lock); 13961 retval = ctl_process_done(io); 13962 continue; 13963 } 13964 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13965 if (io != NULL) { 13966 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13967 mtx_unlock(&thr->queue_lock); 13968 if (io->io_hdr.io_type == CTL_IO_TASK) 13969 ctl_run_task(io); 13970 else 13971 ctl_scsiio_precheck(softc, &io->scsiio); 13972 continue; 13973 } 13974 if (!ctl_pause_rtr) { 13975 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13976 if (io != NULL) { 13977 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13978 mtx_unlock(&thr->queue_lock); 13979 retval = ctl_scsiio(&io->scsiio); 13980 if (retval != CTL_RETVAL_COMPLETE) 13981 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13982 continue; 13983 } 13984 } 13985 13986 /* Sleep until we have something to do. */ 13987 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13988 } 13989 } 13990 13991 static void 13992 ctl_lun_thread(void *arg) 13993 { 13994 struct ctl_softc *softc = (struct ctl_softc *)arg; 13995 struct ctl_be_lun *be_lun; 13996 int retval; 13997 13998 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 13999 14000 for (;;) { 14001 retval = 0; 14002 mtx_lock(&softc->ctl_lock); 14003 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 14004 if (be_lun != NULL) { 14005 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 14006 mtx_unlock(&softc->ctl_lock); 14007 ctl_create_lun(be_lun); 14008 continue; 14009 } 14010 14011 /* Sleep until we have something to do. */ 14012 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 14013 PDROP | PRIBIO, "-", 0); 14014 } 14015 } 14016 14017 static void 14018 ctl_enqueue_incoming(union ctl_io *io) 14019 { 14020 struct ctl_softc *softc = control_softc; 14021 struct ctl_thread *thr; 14022 u_int idx; 14023 14024 idx = (io->io_hdr.nexus.targ_port * 127 + 14025 io->io_hdr.nexus.initid.id) % worker_threads; 14026 thr = &softc->threads[idx]; 14027 mtx_lock(&thr->queue_lock); 14028 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 14029 mtx_unlock(&thr->queue_lock); 14030 wakeup(thr); 14031 } 14032 14033 static void 14034 ctl_enqueue_rtr(union ctl_io *io) 14035 { 14036 struct ctl_softc *softc = control_softc; 14037 struct ctl_thread *thr; 14038 14039 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14040 mtx_lock(&thr->queue_lock); 14041 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 14042 mtx_unlock(&thr->queue_lock); 14043 wakeup(thr); 14044 } 14045 14046 static void 14047 ctl_enqueue_done(union ctl_io *io) 14048 { 14049 struct ctl_softc *softc = control_softc; 14050 struct ctl_thread *thr; 14051 14052 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14053 mtx_lock(&thr->queue_lock); 14054 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 14055 mtx_unlock(&thr->queue_lock); 14056 wakeup(thr); 14057 } 14058 14059 static void 14060 ctl_enqueue_isc(union ctl_io *io) 14061 { 14062 struct ctl_softc *softc = control_softc; 14063 struct ctl_thread *thr; 14064 14065 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 14066 mtx_lock(&thr->queue_lock); 14067 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 14068 mtx_unlock(&thr->queue_lock); 14069 wakeup(thr); 14070 } 14071 14072 /* Initialization and failover */ 14073 14074 void 14075 ctl_init_isc_msg(void) 14076 { 14077 printf("CTL: Still calling this thing\n"); 14078 } 14079 14080 /* 14081 * Init component 14082 * Initializes component into configuration defined by bootMode 14083 * (see hasc-sv.c) 14084 * returns hasc_Status: 14085 * OK 14086 * ERROR - fatal error 14087 */ 14088 static ctl_ha_comp_status 14089 ctl_isc_init(struct ctl_ha_component *c) 14090 { 14091 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14092 14093 c->status = ret; 14094 return ret; 14095 } 14096 14097 /* Start component 14098 * Starts component in state requested. If component starts successfully, 14099 * it must set its own state to the requestrd state 14100 * When requested state is HASC_STATE_HA, the component may refine it 14101 * by adding _SLAVE or _MASTER flags. 14102 * Currently allowed state transitions are: 14103 * UNKNOWN->HA - initial startup 14104 * UNKNOWN->SINGLE - initial startup when no parter detected 14105 * HA->SINGLE - failover 14106 * returns ctl_ha_comp_status: 14107 * OK - component successfully started in requested state 14108 * FAILED - could not start the requested state, failover may 14109 * be possible 14110 * ERROR - fatal error detected, no future startup possible 14111 */ 14112 static ctl_ha_comp_status 14113 ctl_isc_start(struct ctl_ha_component *c, ctl_ha_state state) 14114 { 14115 ctl_ha_comp_status ret = CTL_HA_COMP_STATUS_OK; 14116 14117 printf("%s: go\n", __func__); 14118 14119 // UNKNOWN->HA or UNKNOWN->SINGLE (bootstrap) 14120 if (c->state == CTL_HA_STATE_UNKNOWN ) { 14121 ctl_is_single = 0; 14122 if (ctl_ha_msg_create(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 14123 != CTL_HA_STATUS_SUCCESS) { 14124 printf("ctl_isc_start: ctl_ha_msg_create failed.\n"); 14125 ret = CTL_HA_COMP_STATUS_ERROR; 14126 } 14127 } else if (CTL_HA_STATE_IS_HA(c->state) 14128 && CTL_HA_STATE_IS_SINGLE(state)){ 14129 // HA->SINGLE transition 14130 ctl_failover(); 14131 ctl_is_single = 1; 14132 } else { 14133 printf("ctl_isc_start:Invalid state transition %X->%X\n", 14134 c->state, state); 14135 ret = CTL_HA_COMP_STATUS_ERROR; 14136 } 14137 if (CTL_HA_STATE_IS_SINGLE(state)) 14138 ctl_is_single = 1; 14139 14140 c->state = state; 14141 c->status = ret; 14142 return ret; 14143 } 14144 14145 /* 14146 * Quiesce component 14147 * The component must clear any error conditions (set status to OK) and 14148 * prepare itself to another Start call 14149 * returns ctl_ha_comp_status: 14150 * OK 14151 * ERROR 14152 */ 14153 static ctl_ha_comp_status 14154 ctl_isc_quiesce(struct ctl_ha_component *c) 14155 { 14156 int ret = CTL_HA_COMP_STATUS_OK; 14157 14158 ctl_pause_rtr = 1; 14159 c->status = ret; 14160 return ret; 14161 } 14162 14163 struct ctl_ha_component ctl_ha_component_ctlisc = 14164 { 14165 .name = "CTL ISC", 14166 .state = CTL_HA_STATE_UNKNOWN, 14167 .init = ctl_isc_init, 14168 .start = ctl_isc_start, 14169 .quiesce = ctl_isc_quiesce 14170 }; 14171 14172 /* 14173 * vim: ts=8 14174 */ 14175